INFLATABLE BED WITH SPONGE CUSHION

Description

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the priority to Chinese patent application serial no. 202422146180.6, filed on Sep. 2, 2024. The entirety of Chinese patent application serial no. 202422146180.6 is hereby incorporated by reference herein and made a part of this specification.

TECHNICAL FIELD

The present application relates to a technical field of inflatable mattress, and in particular, to an inflatable bed with sponge cushion.

BACKGROUND

An inflatable bed is used in outdoor activities and domestic due to their portability and easy storage. A traditional inflatable bed usually consist of a large inflatable chamber, which, when in use, is inflated with equipment such as an air pump, and when not in use, can be deflated for storage, making it easy to carry and store. However, such a traditional inflatable bed has problems like monotonous design and insufficient comfort. Especially after prolonged use, the bed body is prone to developing depressions due to uneven air distribution or localized air leakage, etc., compromising the effectiveness. In order to solve this problem, inflatable beds with a layered design have emerged on the market, by which layered inflation is realized through upper and lower inflatable chambers, preventing depressions caused by uneven air distribution within a single inflatable chamber.

However, inflatable beds with a layered design is also difficult to ensure balanced inflation between the upper and lower inflatable chambers, which may easily compromise the stability of the inflatable bed during use, thereby diminishing the effectiveness.

SUMMARY

In order to enhance the stability of an inflatable bed, the present application provides an inflatable bed with sponge cushion.

The inflatable bed with sponge cushion includes a top sheet, a bottom sheet and a side enclosure sheet, where the top sheet, the bottom sheet and the side enclosure sheet form a bed body, a partition sheet is provided inside the bed body, a peripheral edge of the partition sheet is connected to the side enclosure sheet to divide the bed body into an upper cushion layer and a lower inflatable chamber, and a sponge cushion is provided inside the upper cushion layer.

The lower inflatable chamber is provided with an inflation and deflation assembly, the upper cushion layer is provided with a first air valve, the partition sheet is provided with at least one one-way air valve, and the at least one one-way air valve is configured to allow air to flow unidirectionally from the upper cushion layer into the lower inflatable chamber.

The upper cushion layer provided with the sponge cushion provides a soft and comfortable bed surface, which can absorb and distribute the user's body weight pressure. The lower inflatable chamber mainly offers support and cushioning, improving the stability of the inflatable bed in use, and preventing excessive sinking under the user's weight. The one-way air valve ensures that air can only unidirectionally flow from the upper cushion layer into the lower inflatable chamber, even if the upper cushion layer is locally deformed due to use or external pressure, the air in the bed body can only flow into the lower inflatable chamber without flowing back to the upper cushion layer, thus ensuring the stability and comfort of the bed body.

When inflating the lower inflatable chamber, only the lower inflatable chamber is inflated, and the injected air will not flow from the lower inflatable chamber to the upper cushion layer, this ensures that the lower inflatable chamber is fully inflated while preventing the upper cushion layer from being over-inflated and causing surface bulging. Thus, the lower inflatable chamber provides good stability of the bed body, while the upper cushion layer offers excellent comfort, enhancing use comfort and convenience. During use, the first air valve on the upper cushion layer can be opened to allow ambient air to enter the upper cushion layer and then permeate the microcellular structure of the sponge cushion, in this way, the air pressure inside the upper cushion layer with the ambient atmospheric pressure is equalized, making the upper cushion layer soft and comfortable.

When deflating the lower inflatable chamber through the inflation and deflation assembly, the first air valve on the upper cushion layer is closed. Due to pressure differential between the lower inflatable chamber and the upper cushion layer, the air in the upper cushion layer flows into the lower inflatable chamber through the one-way air valve, thereby realizing the simultaneous deflation of the upper cushion layer and the lower inflatable chamber to facilitate folding and storage of the inflatable bed.

Additionally, the upper cushion layer and the lower inflatable chamber of the present application can provide two surfaces with different firmness levels. Similar to a dual-sided household mattress, the present product can be used on both sides. Additionally, the present product features a compact storage size for easy transportation.

Optionally, a peripheral edge of the top sheet is connected to a top edge of the side enclosure sheet, a peripheral edge of the bottom sheet is connected to a bottom edge of the side enclosure sheet, the peripheral edge of the partition sheet is connected to a mid-section of the side enclosure sheet, the top sheet, the partition sheet and the side enclosure sheet form the upper cushion layer, and the bottom sheet, the partition sheet and the side enclosure sheet enclose the lower inflatable chamber.

By adopting the above technical solution, the various sheets of the bed body can be stably connected, so that the formed upper cushion layer and lower inflatable chamber have a stable structure, presenting a relatively even and flat surface for enhanced comfort in use.

Optionally, the side enclosure sheet includes an upper side enclosure sheet and a lower side enclosure sheet, a bottom edge of the upper side enclosure sheet is connected to a top edge of the lower side enclosure sheet, the peripheral edge of the partition sheet is connected to a joint of the upper side enclosure sheet and the lower side enclosure sheet, the peripheral edge of the top sheet is connected to a top edge of the upper side enclosure sheet, the peripheral edge of the bottom sheet is connected to a bottom edge of the lower side enclosure sheet, the upper side enclosure sheet, the top sheet and the partition sheet form the upper cushion layer, and the lower side enclosure sheet, the bottom sheet and the partition sheet enclose the lower inflatable chamber.

By adopting the above technical solution, the height of the upper side enclosure sheet and the height of the lower side enclosure sheet can be determined according to a required height of the upper cushion layer and a required height of the lower inflatable chamber, so as to flexibly adjust the height of the bed body, thereby meeting different user's sleeping preference.

Optionally, the first air valve is disposed on the upper side enclosure sheet, and the inflation and deflation assembly is disposed on the lower side enclosure sheet.

By adopting the above technical solution, stable airflow circulation can be achieved in the upper cushion layer, while stable inflation and deflation operations can be performed for the lower inflatable chamber, resulting in high practicality. The first air valve and the inflation and deflation assembly are positioned on the side enclosure sheet of the bed body, without comprising to sleeping comfort on the bed surface or placement stability when placed on the floor.

Optionally, a plurality of webbing straps are provided inside the lower inflatable chamber, a first end of each of the plurality of webbing straps is connected with the partition sheet, and a second end of each of the plurality of webbing straps is connected with the bottom sheet.

The present application used webbing straps to connect the partition sheet and the bottom sheet of the lower inflatable chamber, this can enhance structural stability of the lower inflatable chamber, preventing deformation or damage caused by prolonged use or over-inflation, thereby improving the durability of the bed body. Additionally, it offers versatile connection methods to adapt to different usage environments.

Optionally, extending from the peripheral edge of the top sheet, an annular volume-enhancing flap is formed, a peripheral edge of the annular volume-enhancing flap away from the top sheet is connected to a mid-outer surface of the side enclosure sheet, the peripheral edge of the partition sheet is connected to the top edge of the side enclosure sheet, the peripheral edge of the bottom sheet is connected to the bottom edge of the side enclosure sheet, the top sheet, the annular volume-enhancing flap, the partition sheet and the side enclosure sheet form the upper cushion layer, and the bottom sheet, the partition sheet and the side enclosure sheet enclose the lower inflatable chamber.

When webbing straps are provided in the lower inflatable chamber, inflating the lower inflatable chamber causes the webbing straps to pull inward o both the partition sheet connected to the top ends of the webbing straps and the bottom sheet connected to the bottom ends of the webbing straps, so as to improve the stability of the lower inflatable chamber. However, as the partition sheet is pulled inward by the webbing straps, it partially concaves, reducing its plan-view projection area. Moreover, the traction force from the webbing straps further pulls the peripheral edge of the partition sheet toward its center, so as to pull a joint between the partition sheet and the side enclosure sheet toward the center of the partition sheet, resulting a “3”-shaped cross-sectional profile in the side enclosure sheet. The traction force on the side enclosure sheet further pulls the peripheral edge of the top sheet downward, causing the top sheet and the sponge cushion to arch upward into a bridge-like curvature, which reduces the flatness of the upper surface of the bed body, thereby compromising the comfort, stability, and safety during use.

Therefore, by adopting the above technical solution, the partition sheet is connected to the top edge of the side enclosure sheet, the annular volume-enhancing flap is connected to the mid-outer surface of the side enclosure sheet to envelop a part of the side enclosure sheet, so that the partition sheet is pulled inward into the lower inflatable chamber when pulled by the webbing straps, while the annular volume-enhancing flap can cover the deformed section of the side enclosure sheet caused by its inward traction toward the center of the partition sheet. As a result, the side enclosure sheet maintains a relatively flat appearance without a pronounced “3”-shaped cross-sectional profile. On the other hand, the annular volume-enhancing flap extends from the peripheral edge of the top sheet, increasing the original area of the top sheet. When the top sheet is pulled by the partition sheet and the side enclosure sheet, the annular volume-enhancing flap provides a buffer zone for downward stretching traction, keeping the top sheet relatively flat without a pronounced upward arching bridge-like deformation, thereby improving the use stability and comfort of the inflatable bed.

Optionally, the side enclosure sheet includes an upper side enclosure sheet and a lower side enclosure sheet, a bottom edge of the upper side enclosure sheet is connected to a top edge of the lower side enclosure sheet, the peripheral edge of the partition sheet is connected to a top edge of the upper side enclosure sheet, the peripheral edge of the annular volume-enhancing flap away from the top sheet is connected to a joint of the upper side enclosure sheet and the lower side enclosure sheet, the annular volume-enhancing flap is provided on an outer surface of the upper side enclosure sheet, the peripheral edge of the bottom sheet is connected to a bottom edge of the lower side enclosure sheet, the top sheet, the annular volume-enhancing flap, the partition sheet and the upper side enclosure sheet form the upper cushion layer, and the bottom sheet, the partition sheet, the upper side enclosure sheet and the lower side enclosure sheet enclose the lower inflatable chamber.

By adopting the above technical solution, the height of the lower side enclosure sheet can be set according to the required height of the lower inflatable chamber, and a position of the annular volume-enhancing flap at the joint of the upper side enclosure sheet and the lower side enclosure sheet can be set according to the required height of the upper cushion layer, in this way, the height of the bed body can be flexibly adjusted to meet different people's sleeping preference.

Optionally, the first air valve is provided on the top sheet, and the inflation and deflation assembly is provided on the lower side enclosure sheet.

By adopting the above technical solution, users can conveniently open and a close the first air valve on the top sheet when lying on the inflatable bed, ensuring convenient operation. The first air valve may be positioned at a corner of the top sheet, to prevent the first air valve from causing any intrusive sensation in the body's sleeping area when using the inflatable bed, thereby improving comfort of use.

Optionally, the at least one one-way air valve is positioned on the partition sheet adjacent to the inflation and deflation assembly.

By adopting the above technical solution, the flow path of the air in the upper cushion layer into the lower inflating assembly through the one-way air valve, thereby improving the deflation efficiency of the upper cushion layer and the lower inflatable chamber, and ensuring a convenient use.

Optionally, the inflation and deflation assembly is an integrated inflation and deflation unit and/or a second air valve, which enables diversified inflation and deflation operations for the lower inflatable chamber, an integrated inflation and deflation unit can be provided according to an application scenario of the inflatable bed to realize unified inflation and deflation. The second air valve can also be provided, so that the lower inflatable chamber can be inflated or deflated by connecting an external independent inflation and deflation pump to the second air valve. The integrated inflation and deflation unit and the second air valve can be provided simultaneously, enabling diversified inflation and deflation operations.

Optionally, each of the plurality of webbing straps is a cord webbing strap, a perforated webbing strap, a strip webbing strap or a loop webbing strap. Different webbing straps can be adopted according to usage needs of the bed body, thus diversifying the connection methods of the webbing straps in the lower inflatable chamber.

Optionally, each of the at least one one-way air valve includes a housing and a one-way diaphragm, a through hole is defined in a middle of the housing, the through hole penetrates through two surfaces of the housing, a wall of the through hole is formed with a connecting disc, the connecting disc is formed with a mounting hole and a plurality of vent holes, and the one-way diaphragm overlies the plurality of vent holes, and

• • a surface of the one-way diaphragm facing the upper cushion layer is provided with a connecting post, a circumferential retaining groove is formed at a mid-section of the connecting post along a circumferential direction of the connecting post, the connecting post passes through the mounting hole, and an inner wall of the mounting hole snaps into the circumferential retaining groove.

The above technical solution enables the unidirectional flow of air from the upper cushion layer to the lower inflatable chamber, facilitating the inflation or deflation of the inflatable bed and ensuring a convenient use. Specifically, the one-way diaphragm is connected to the connecting disc through the connecting post and the circumferential retaining groove. When inflating the lower inflatable chamber, the air pressure in the lower inflatable chamber is greater than that in the upper cushion layer, pressing the one-way diaphragm against a bottom of the connecting disc and sealing the mounting hole and the plurality of vent holes, so as to prevent the injected air from entering the upper cushion layer through the one-way air valve. When deflating the lower inflatable chamber, a negative pressure space is formed in the lower inflatable chamber, and the air pressure in the upper cushion layer is greater than that in the lower inflatable chamber, causing the one-way diaphragm to move away from the bottom of the connecting disc, creating a gap. This releases the seal over the vent holes, while the circumferential retaining groove remains engaged within the mounting hole, a top of the connecting post is retained by a top of the connecting disc, and the air in the upper cushion layer can flow into the lower inflatable chamber through the vent holes.

Optionally, an axial length of the circumferential retaining groove is greater than a thickness of the connecting disc.

The above technical solution can provide a defined gap between the one-way diaphragm and the bottom of the connecting disc. When deflating the lower inflatable chamber, the one-way diaphragm move away from the bottom of the connecting disc, releasing the seal over the vent holes, while the top of the connecting post can remain retained above the connecting disc. This allows air in the upper cushion layer to flow into the lower inflatable chamber through the vent holes and the gape, enabling a flexible and efficient operation.

Optionally, an outer wall of the housing along a circumferential direction of the housing is provided with a mounting ring, and the mounting ring is fixedly connected to the partition sheet, so as to improve the connection stability between the one-way air valve and the partition sheet, simplify the installation process of the one-way air valve, and enhance production efficiency of the product.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a three-dimensional schematic view of an inflatable bed with sponge cushion according to Embodiment 1 of the present application;

FIG. 2 is a partial explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 1 of the present application, where the sponge cushion is partially cut away.

FIG. 3 is an explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 1 of the present application, wherein the lower inflatable chamber is partially cut away;

FIG. 4 is a schematic view showing the structure of an one-way air valve according to the present application;

FIG. 5 is a longitudinal cross-sectional view of the one-way air valve according to the present application;

FIG. 6 is a first explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 1 of the present application when using a flat webbing strap;

FIG. 7 is a second explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 1 of the present application when using the flat webbing strap;

FIG. 8 is a first explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 1 of the present application when using a horizontal loop webbing;

FIG. 9 is a second explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 1 of the present application when using the horizontal loop webbing;

FIG. 10 is a first explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 1 of the present application when using a vertical loop webbing;

FIG. 11 is a second explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 1 of the present application when using the vertical loop webbing;

FIG. 12 is an explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 2 of the present application;

FIG. 13 is a three-dimensional schematic view of the inflatable bed with sponge cushion according to Embodiment 3 of the present application;

FIG. 14 is an explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 3 of the present application, where the lower inflatable chamber is partially cut away;

FIG. 15 is a partial schematic cross-sectional view of the lower inflatable chamber according to Embodiment 4 of the present application;

FIG. 16 is a first explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 5 of the present application, where the lower inflatable chamber is partially cut away;

FIG. 17 is a second explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 5 of the present application, where the lower inflatable chamber is partially cut away;

FIG. 18 is a third explosive schematic view of the inflatable bed with sponge cushion according to Embodiment 5 of the present application, wherein the lower inflatable chamber is partially cut away;

FIG. 19 is a partial cross-sectional view of the lower inflatable chamber according to Embodiment 6 of the present application;

FIG. 20 is the partial cross-sectional view of the lower inflatable chamber according to Embodiment 6 of the present application;

FIG. 21 is the partial cross-sectional view of the lower inflatable chamber according to Embodiment 6 of the present application.

DETAILED DESCRIPTION

The present application is further described in detail below with reference to FIGS. 1-21.

The present application provided am inflatable bed with sponge cushion.

Embodiment 1

Referring to FIGS. 1-3, the inflatable bed with sponge cushion includes a top sheet 1, a partition sheet 2, a bottom sheet 3 and a one-piece side enclosure sheet 4. A peripheral edge of the top sheet 1 is connected to a top edge of the side enclosure sheet 4, a peripheral edge of the bottom sheet 3 is connected to a bottom edge of the side enclosure sheet 4. These connections are optionally formed by thermal welding or adhesive bonding to establish a fundamental structure of a bed body 100. Further, a peripheral edges of the partition sheet 2 is connected to a mid-section of the side enclosure sheet 4 via thermal welding or adhesive bonding, so that the top sheet 1, the partition sheet 2 and the side enclosure sheet 4 enclose an upper cushion layer 101, and the bottom sheet 3, the partition sheet 2 and the side enclosure sheet 4 enclose a lower inflatable chamber 102. Optionally, a connection position of the partition sheet 2 on the side enclosure sheet 4 can be determined according to a required height of the upper cushion layer 101 and a required height of the lower inflatable chamber 102.

Further, referring to FIGS. 2-3, the partition sheet 2 is provided with at least one one-way air valve 8, which is a common one-way air valve available on the market. Specifically, referring to FIGS. 4-5, the one-way air valve 8 includes a housing 81 and a one-way diaphragm 82. An outer wall of the housing 81 is provided with a mounting ring 84 along a circumferential direction. Optionally, the mounting ring 84 is provided on an upper surface of the partition sheet 2, so that the housing 81 can be stably connected to the partition sheet 2, improving the connection stability between the one-way air valve 8 and the bed body 100.

A through hole 811 is defined in a middle of the housing 81, which penetrates through the housing 81, and a wall of the through hole is integrally formed with a connecting disc 83. The connecting disc 83 is formed with a mounting hole 831 and a plurality of vent holes 832, and the one-way diaphragm 82 overlies the plurality of vent holes 832. A top surface of the one-way diaphragm 82 is provided with a connecting post 821, which is disposed on a surface of the one-way diaphragm 82 facing the upper cushion layer 101. Optionally, the connecting post 821 is integrally formed with the one-way diaphragm 82 and is optionally made of soft rubber material. Further, a circumferential retaining groove 822 is formed at a mid-section of the connecting post 821 along its circumferential direction, so that a top portion of the soft connecting post 821 passed through the mounting hole 831 through a slight deform, whereupon an inner wall of the mounting hole 831 snaps into the circumferential retaining groove 822, thereby securing the top portion of the connecting post 821 above the connecting disc 83. Due to a fact that an axial length of the circumferential retaining groove 822 is greater than a thickness of the connecting disc 83, the mid-section of the connecting post 821 with the circumferential retaining groove 822 can move relative to the mounting hole 831. When the one-way diaphragm 82 abuts against a bottom surface of the connecting disc 83, it occludes the plurality of vent holes 832, preventing air flow from the bottom to the top of the connecting disc 83. When the one-way diaphragm 82 moves away from the bottom of the connecting disc 83, it releases the occlusion of the vent holes 832, creating an air gap between the bottom of the connecting disc 83 and the one-way diaphragm 82, facilitating air flow from the top to the bottom of the connecting disc 83.

Referring back to FIGS. 1-2, a sponge cushion 5 is provided inside the upper cushion layer 101, a height of the sponge cushion 5 is slightly greater than a distance between the top sheet 1 and the partition sheet 2, so that the upper cushion layer 101 can securely envelop the sponge cushion 5. During use, the sponge cushion 5 provides a soft and comfortable tactile sensation for the inflatable bed. A side wall of the upper cushion layer 101 (i.e., a section of the side enclosure sheet 4 corresponding to the upper cushion layer 101) is provided with a first air valve 7, the first air valve 7 is a common air valve available on the market and is configured to maintain air flow between the external environment and the upper cushion layer 101. When the inflatable bed is in use, the first air valve 7 is opened to allow ambient air to flow into the upper cushion layer 101 and permeate the microcellular structure of the sponge cushion 5, so as to ensure air pressure equilibrium between the upper cushion layer 101 and external environment.

A plurality of webbing straps 9 are provided inside the lower inflatable chamber 102, a first end of the webbing strap 9 is connected to the partition sheet 2, and a second end of the webbing strap 9 is connected to the bottom sheet 3. The webbing straps 9 can be rope-shaped webbing straps, flat webbing straps, horizontal loop webbings, and vertical loop webbings, etc., all of which can achieve stabilizing effect of the webbing straps 9. Referring to FIG. 3, the rope-shaped webbing straps present a plurality of dot-shaped patterns on an outer surface of the bottom sheet 3. Referring to FIGS. 6-7, two opposite side edges of the flat webbing strap are respectively connected to the partition sheet 2 and the bottom sheet 3, thereby presenting a line-shaped pattern on the outer surface of the bottom sheet 3, a plane where each of the flat webbing straps is located is parallel to a length direction or a width direction of the bed body 100. Referring to FIGS. 8-9, each of the strip-shaped sheets has its ends bonded end-to-end to form a cylinder with a quasi-elliptical base, a lateral surface of the cylinder are respectively connected to the partition sheet 2 and the bottom sheet 3, so that a plurality of quasi-circular patterns are presented on the outer surface of the bottom sheet 3. The webbing straps formed in this way are called horizontal loop webbings, and a width direction of each of the strip-shaped sheets of the horizontal loop webbings is parallel to the length direction or the width direction of the bed body 100. Referring to FIGS. 10-11, the strip-shaped sheet has its ends bonded end-to-end to form a cylinder with quasi-elliptical base, two bases of the cylinder are respectively connected to the partition sheet 2 and the bottom sheet 3, thereby forming a vertical loop webbing. By the vertical loop webbings, a width of each of the strip-shaped sheets is the same as the height of the lower inflatable chamber 102, and side edges of the strip-shaped sheets can be oriented in the length direction or the width direction of the inflatable bed, so that a plurality of elliptical patterns are presented on the outer surface of the bottom sheet 3.

A side wall of the lower inflatable chamber 102 (i.e., a section of the side enclosure sheet corresponding to the lower inflatable chamber 102) is provided with an inflation and deflation assembly 6, the inflation and deflation assembly 6 is an integrated inflation and deflation unit 61 and/or a second air valve 62, the integrated inflation and deflation unit 61 is a commercially available air pump with combined inflation and deflation functions, and the second air valve 62 is a commercially available air valve, which can be connected with an external inflation and deflation unit to inflate or deflate the lower inflatable chamber 102. Optionally, the inflation and deflation assembly 6 and the second air valve 62 can both be disposed on the side wall of the lower inflatable chamber 102, or only the inflation and deflation assembly 6 or only the second air valve 62 can be disposed on the sided wall of the lower inflatable chamber, both of which are within the protection scope of the present application.

When both the integrated inflation and deflation unit 61 and the second air valve 62 are provided, they can be disposed on the side enclosure sheet 4 on the same side of the lower inflatable chamber 102, or respectively on the side enclosure sheet 4 on different sides of the lower inflatable chamber 102. The first air valve 7 and the second air valve 62 can be provided on the side enclosure sheet 4 on the same side of the bed body 100, or on the side enclosure sheet 4 on different sides of the bed body 100. The integrated inflation and deflation unit 61 and the first air valve 7 can be provided on the side enclosure sheet 4 on the same side of the bed body 100, or on the side enclosure sheet 4 on different sides of the bed body 100. That is, the first air valve 7, the second air valve 62 and the integrated inflation and deflation unit 61 can all be provided on the side enclosure sheet 4 on the same side of the bed body 100 or on the side enclosure sheet 4 on different sides of the bed body 100, both of which are within the protection scope of the present application. The one-way air valve 8 is optionally disposed on a position of the partition sheet 2 adjacent to the integrated inflation and deflation unit 61 and/or the second air valve 62, and furthermore, the one-way air valve 8 is positioned on the partition sheet 2 adjacent to a deflation port of the integrated inflation and deflation unit 61, which features high evacuation efficiency, enabling the air in the upper cushion layer 101 to be timely extracted to the external environment through the inflation and deflation assembly 6 after being extracted, thus improving an overall extraction and compact storage of the inflatable bed.

The implementation principle of Embodiment 1 is as follows. The first air valve 7, the second air valve 62 and the integrated inflation and deflation unit 61 are respectively fixed on the side walls of the side enclosure sheet 4 according to required positions, and the one-way air valve 8 is provided on the partition sheet 2. Specifically, the side of the one-way diaphragm 82 with the connecting post 821 are facing upward, a top edge of each of the webbing straps 9 is connected to a lower surface of the partition sheet 2 while a bottom edge of each of the webbing straps 9 is connected to an upper surface of the bottom sheet 3, and then the peripheral edge of the bottom sheet 3 is connected to the bottom edge of the side enclosure sheet 4, the peripheral edge of the partition sheet 2 is connected to the mid-section of the side enclosure sheet 4, and the position of the one-way air valve 8 on the partition sheet 2 is close to the side wall of the side enclosure sheet 4 with the integrated inflation and deflation unit 61 and/or the second air valve 62. Optionally, the one-way air valve 8 is positioned adjacent to the deflation port of the integrated inflation and deflation unit 61 on the partition sheet 2, thereby forming the lower inflatable chamber 102. Similarly, firstly the sponge cushion 5 is placed on the upper surface of the partition sheet 2, then the peripheral edge of the top sheet 1 is connected to the top edge of the side enclosure sheet 4 to form the upper cushion layer 101. Finally, trim scraps at all connection interfaces are removed, thereby obtaining the inflatable bed with sponge cushion.

When deploying the inflatable bed with sponge cushion, the first air valve 7 is opened to permit ambient air to freely enter the upper cushion layer 101 and permeates the microcellular structure of the sponge cushion 5, thereby enabling the atmospheric pressure equilibrium between the upper cushion layer 101 and the external environment. An external inflation and deflation device is connected with the second air valve 62, or the lower inflatable chamber 102 is charged directly through the integrated inflation and deflation unit 61, so that the injected air thoroughly flows into the lower inflatable chamber 102 without flowing into the upper cushion layer 101 through the one-way air valve 8, thus completing inflation of the inflatable bed with sponge cushion. During use, the first air valve 7 can remain open or be closed.

During non-use of the inflatable bed with sponge cushion, the first air valve 7 is closed and the air in the lower inflatable chamber 102 is evacuated through the second air valve 62. For storage compaction, the inflatable bed with sponge cushion can be simultaneously rolled and compressed to expel the air from both the upper cushion layer 101 and the microcellular structure of the sponge cushion 5, the air expelled from the upper cushion layer 101 flows to the lower inflatable chamber 102 through the one-way air valve 8 to realize evacuation and storage. In addition, the external inflation and deflation device can be connected with the second air valve 62, or accelerated evacuation of air from the lower inflatable chamber 102 can be achieved by directly using the deflation function of the integrated inflation and deflation unit 61. During deflation of the lower inflatable chamber 102, a negative pressure state develops in the lower inflatable chamber 102, the pressure differential between the upper cushion layer 101 and the lower inflatable chamber 102 propels the air from both the upper cushion layer 101 and the microcellular structure of the sponge cushion 5 into the lower inflatable chamber 102 through the one-way air valve 8, so that the upper cushion layer 101 and the lower inflatable chamber 102 can be evacuated simultaneously, to thoroughly expulse air from the upper cushion layer 101 and the lower inflatable chamber 102, which facilitate more compact folding and rolling dimensions of the inflatable bed.

Embodiment 2

Referring to FIG. 12, the present embodiment differs from Embodiment 1 in that: in this embodiment, two side enclosure sheets 4 are provided, namely an upper side enclosure sheet 41 and a lower side enclosure sheet 42. A bottom edge of the upper side enclosure sheet 41 is connected to a top edge of the lower side enclosure sheet 42, and a top edge of the upper side enclosure sheet 41 is connected to the peripheral edge of the top sheet 1. The bottom edge of the upper side enclosure sheet 41 and the top edge of the lower side enclosure sheet 42 are both connected to the peripheral edge of the partition sheet 2, that is, the peripheral edge of the partition sheet 2 are connected to a joint between the bottom edge of the upper side enclosure sheet 41 and the top edge of the lower side enclosure sheet 42. The peripheral edge of the bottom sheet 3 is connected to the bottom edge of the lower side enclosure sheet 42. The above connections may adopt thermal welding or adhesive bonding to form the upper cushion layer 101 and the lower inflatable chamber 102. A height of the upper side enclosure sheet 41 and a height of the lower side enclosure sheet 42 can be determined according to the required height of the upper cushion layer 101 and the required height of the lower inflatable chamber 102, and the height of the upper side enclosure sheet 41 is slightly less than the height of the sponge cushion 5.

The first air valve 7 is disposed on a side wall of the upper side enclosure sheet 41, and the integrated inflation and deflation unit 61 and/or the second air valve 62 are provided on a side wall of the lower side enclosure sheet 42. Specifically, the inflation and deflation assembly 6 and the second air valve 62 can both be disposed on the lower side enclosure sheet 42, or only the inflation and deflation assembly 6 or only the second air valve 62 can be disposed on the lower side enclosure sheet, both of which are within the protection scope of the present application.

When the integrated inflation and deflation unit 61 and the second air valve 62 are both provided, they can be arranged on the same side wall of the lower side enclosure sheet 42, or respectively on different side walls of the lower side enclosure sheet 42. The first air valve 7 and the second air valve 62 can be provided on the side enclosure sheet 4 on the same side of the bed body 100, that is, the side wall of the upper side enclosure sheet 41 with the first air valve 7 is located on the same side of the bed body 100 as the side wall of the lower side enclosure sheet 42 with the second air valve 62. The first air valve 7 and the second air valve 62 can also be respectively disposed on the side enclosure sheets 4 on different sides of the bed body 100, that is, the side wall of the upper side enclosure sheet 41 with the first air valve 7 is located on a side of the bed body 100 different from the side wall of the lower side enclosure sheet 42 with the second air valve 62. The integrated inflation and deflation unit 61 and the first air valve 7 can be provided on the side enclosure sheet 4 on the same side of the bed body 100, that is, the side wall of the upper side enclosure sheet 41 with the first air valve 7 is located on the same side of the bed body 100 as the side wall of the lower side enclosure sheet 42 with the integrated inflation and deflation unit 61. The integrated inflation and deflation unit 61 and the first air valve 7 can also be respectively provided on the side enclosure sheets 4 on different sides of the bed body 100, that is, the side wall of the upper side enclosure sheet 41 with the first air valve 7 is on a side of the bed body 100 different from the side wall of the lower side enclosure sheet 42 with the integrated inflation and deflation unit 61. That is, the first air valve 7, the second air valve 62, and the integrated inflation and deflation unit 61 can all be provided on the same side of the bed body 100 or respectively on different sides of the bed body 100, both of which are within the protection scope of the present application.

The implementation principle of Embodiment 2 is as follows. The first air valve 7 is fixed to the corresponding side wall of the upper side enclosure sheet 41 as required, the second air valve 62 and the integrated inflation and deflation unit 61 are fixed to the corresponding side walls of the lower side enclosure sheet 42 as required, and the one-way air valve 8 is arranged on the partition sheet 2. Specifically, the side of the one-way diaphragm 82 with the connecting post 821 are facing upward, a top edge of each of the webbing straps 9 is connected to a lower surface of the partition sheet 2 while a bottom edge thereof is connected to an upper surface of the bottom sheet 3, and then the peripheral edge of the bottom sheet 3 is connected to the bottom edge of the lower side enclosure sheet 4, the top edge of the lower side enclosure sheet 42 is connected to the peripheral edge of the partition she 2, and the position of the one-way air valve 8 on the partition sheet 2 is close to the side wall of the lower side enclosure sheet 4 with the integrated inflation and deflation unit 61 and/or the second air valve 62. Optionally, the one-way air valve 8 is positioned adjacent to the deflation port of the integrated inflation and deflation unit 61 on the partition sheet 2, thereby forming the lower inflatable chamber 102. Similarly, firstly the sponge cushion 5 is placed on the upper surface of the partition sheet 2, then the peripheral edge of the top sheet 1 is connected to the top edge of the upper side enclosure sheet 41, and the bottom edge of the upper side enclosure sheet 41 is connected to the peripheral edge of the partition sheet 2 to form the upper cushion layer 101. Finally, trim scraps at all connection interfaces are removed, thereby obtaining the inflatable bed with sponge cushion.

The usage, storage and folding operation of the inflatable bed with sponge cushion are the same as those described in Embodiment 1, and will not be repeated here.

Embodiment 3

Referring to FIGS. 13-14, the present embodiment differs from Embodiment 1 in that: the embodiment is adaptable to the inflatable bed with horizontal loop webbings. Specifically, the side enclosure sheet 4 of this embodiment is of a one-piece design, and the peripheral edge of the partition sheet 2 is connected to the top edge of the side enclosure sheet 4, while the peripheral edge of the bottom sheet 3 is connected to the bottom edge of the side enclosure sheet 4, so that the partition sheet 2, the side enclosure sheet 4, and the bottom sheet 3 enclose the lower inflatable chamber 102.

Extending from the peripheral edge of the top sheet 1, an annular volume-enhancing flap 11 is formed, which is integrally connected to the peripheral edge of the top sheet 1 on one end and connected to the mid-outer surface of the side enclosure sheet 4 on the other end. Specifically, the peripheral edge of the top sheet 1 and the annular volume-enhancing flap 11 encase an upper-middle part of the outer surface of the side enclosure sheet 4, so that a total area of the top sheet 1 and the annular volume-enhancing flap 11 is larger than an area of the partition sheet 2. At this time, the top sheet 1, the annular volume-enhancing flap 11, the partition sheet 2, and the side enclosure sheet 4 enclose the upper cushion layer 101. Optionally, in this embodiment, the area of the top sheet 1 in a flattened state is identical with the area of the partition sheet 2 in a flattened state. In this embodiment, the annular volume-enhancing flap 11 can be fixedly connected with the outer surface of the side enclosure sheet 4 by welding, adhesive bonding, etc., to ensure a good sealing performance of the upper cushion layer 101. Alternatively, the annular volume-enhancing flap 11 can be detachably connected with the outer surface of the side enclosure sheet 4 by zipper connection, velcro connection, snap connection, etc., so that they can be replaced and connected according to size requirements of the sponge cushion 5.

The first air valve 7 is provided on the top sheet 1, optionally at a corner of the top sheet 1, while the integrated inflation and deflation unit 61 and/or the second air valve 62 are provided on the side wall of the side enclosure sheet 4. Specifically, the side enclosure sheet 4 can be provided with both the inflation and deflation assembly 6 and the second air valve 62 at the same time, or only with the inflation and deflation assembly 6, or only with the second air valve 62, all of which are within the protection scope of the present application. When the integrated inflation and deflation unit 61 and the second air valve 62 are provided at the same time, the integrated inflation and deflation unit 61 and the second air valve 62 can be provided on the same side wall of the side enclosure sheet 4 or respectively on different side walls of the side enclosure sheet 4, both of which are within an implementation scope of the present application.

The implementation principle of Embodiment 3 is as follows. The first air valve 7 is fixed to the top sheet 1 as required, the second air valve 62 and the integrated inflation and deflation unit 61 are respectively fixed on the corresponding side walls of the side enclosure sheet 4 as required, and the one-way air valve 8 is provided on the partition sheet 2. Specifically, the side of the one-way diaphragm 82 with the connecting post 821 are facing upward, a top edge of each of the webbing straps 9 is connected to a lower surface of the partition sheet 2 while a bottom edge thereof is connected to an upper surface of the bottom sheet 3, the peripheral edge of the bottom sheet 3 is connected to the bottom edge of the side enclosure sheet 4, the peripheral edge of the partition sheet 2 is connected to the top edge of the side enclosure sheet 4, and the position of the one-way air valve 8 on the partition sheet 2 is close to the side wall of the side enclosure sheet 4 with the integrated inflation and deflation unit 61 and/or the second air valve 62. Optionally, the one-way air valve 8 is positioned adjacent to the deflation port of the integrated inflation and deflation unit 61 on the partition sheet 2, thereby forming the lower inflatable chamber 102. Similarly, firstly the sponge cushion 5 is placed on the upper surface of the partition sheet 2, then the peripheral edge of the annular volume-enhancing flap 11 is connected to the mid-outer surface of the side enclosure sheet 4 to form the upper cushion layer 101. Finally, trim scraps at all connection interfaces are removed, thereby obtaining the inflatable bed with sponge cushion.

When inflating the inflatable bed with sponge cushion, the first air valve 7 is opened to maintain the atmospheric pressure equilibrium between the upper cushion layer 101 and the external environment, and the lower inflatable chamber 102 is charged through the integrated inflation and deflation unit 61 or the second air valve 62, which is the same as that in Embodiment 1. The distinction lies in the inflation process: the webbing straps 9 draw the partition sheet 2 and the bottom sheet 3 inward. Consequently, the projected cross-sectional area of the partition sheet 2 decreases under tensile strain. Simultaneously, the upper-middle part of the side enclosure panel 4 undergoes localized curving toward the center of the partition sheet 2 as its top portion is pulled toward the center of the partition sheet 2. This action downwardly stretches the annular volume-enhancing flap, thereby preventing upward doming deformation of the top sheet 1 while maintaining secure envelopment of the sponge cushion 5.

The storage and folding operation during non-use of the inflatable bed with sponge cushion is the same as those described in Embodiment 1 mentioned above, and will not be repeated here.

Embodiment 4

Referring to FIG. 15, the present embodiment differs from Embodiment 3 in that: the side enclosure sheet 4 of this embodiment is formed by connecting the upper side enclosure sheet 41 and the lower side enclosure sheet 42. Specifically, the bottom edge of the upper side enclosure sheet 41 is connected to the top edge of the lower side enclosure sheet 42, while the peripheral edge of the partition sheet 2 is connected to the top edge of the upper side enclosure sheet 41, and the peripheral edge of the bottom sheet 3 is connected to the bottom edge of the lower side enclosure sheet 42, so that the partition sheet 2, the upper side enclosure sheet 41, the lower side enclosure sheet 42, and the bottom sheet 3 enclose the lower inflatable chamber 102.

The annular volume-enhancing flap 11, extending from the peripheral edge of the top sheet 1, is connected to the joint between the upper side enclosure sheet 41 and the lower side enclosure sheet 42 (through thermal welding, adhesive bonding, zipper connection, velcro connection, snap connection, etc.). Specifically, the peripheral edge of the top sheet 1 and the annular volume-enhancing flap 11 encase the outer surface of the side enclosure sheet 4. At this time, the top sheet 1, the annular volume-enhancing flap 11, the partition sheet 2, and the side enclosure sheet 4 enclose the upper cushion layer 101.

The first air valve 7 is provided on the top sheet 1, optionally at a corner of the top sheet 1, while the integrated inflation and deflation unit 61 and/or the second air valve 62 are provided on the side wall of the lower side enclosure sheet 42. Specifically, the lower side enclosure sheet 42 can be provided with both the inflation and deflation assembly 6 and the second air valve 62 at the same time, or only with the inflation and deflation assembly 6, or only with the second air valve 62, all of which are within the protection scope of the present application.

When the integrated inflation and deflation unit 61 and the second air valve 62 are provided at the same time, the integrated inflation and deflation unit 61 and the second air valve 62 can be provided on the same side wall of the lower side enclosure sheet 4 or respectively on different side walls of the lower side enclosure sheet 42, both of which are within an implementation scope of the present application.

When the integrated inflation and deflation unit 61 and the second air valve 62 are provided at the same time, the integrated inflation and deflation unit 61 and the second air valve 62 can be provided on the same side wall of the lower side enclosure sheet 42, or respectively on different side walls of the lower side enclosure sheet 42, both of which are within the implementation scope of the present application.

The implementation principle of Embodiment 4 is as follows. The first air valve 7 is fixed to the top sheet 1 as required, the second air valve 62 and the integrated inflation and deflation unit 61 are respectively fixed on the corresponding side walls of the lower side enclosure sheet 42 as required, and the one-way air valve 8 is provided on the partition sheet 2. Specifically, the side of the one-way diaphragm 82 with the connecting post 821 are facing upward, a top edge of each of the webbing straps 9 is connected to a lower surface of the partition sheet 2 while a bottom edge thereof is connected to an upper surface of the bottom sheet 3, the peripheral edge of the bottom sheet 3 is connected to the bottom edge of the lower side enclosure sheet 42, the top edge of the upper side enclosure sheet 42 is connected to the peripheral edge of the partition sheet 2, and the position of the one-way air valve 8 on the partition sheet 2 is close to the side wall of the lower side enclosure sheet 42 with the integrated inflation and deflation unit 61 and/or the second air valve 62. Optionally, the one-way air valve 8 is positioned adjacent to the deflation port of the integrated inflation and deflation unit 61 on the partition sheet 2, thereby forming the lower inflatable chamber 102. Similarly, firstly the sponge cushion 5 is placed on the upper surface of the partition sheet 2, then the peripheral edge of the annular volume-enhancing flap 11 is connected to the joint between the upper side enclosure sheet 41 and the lower side enclosure sheet 42 while encasing the upper side enclosure sheet 41, so as to form the upper cushion layer 101. Finally, trim scraps at all connection interfaces are removed, thereby obtaining the inflatable bed with sponge cushion.

When inflating the lower inflatable chamber 102, the webbing straps 9 draw the partition sheet 2 and the bottom sheet 3 inward. Consequently, the projected cross-sectional area of the partition sheet 2 decreases under tensile strain. Simultaneously, the upper side enclosure sheet 41 undergoes curving toward the center of the partition sheet 2 as its top is pulled toward the center of the partition sheet 2. This action downwardly stretches the annular volume-enhancing flap simultaneously, thereby preventing upward doming deformation of the top sheet 1 while maintaining secure envelopment of the sponge cushion 5.

The storage and folding operation during non-use of the inflatable bed with sponge cushion is the same as those described in Embodiment 3 mentioned above, and will not be repeated here.

Embodiment 5

Referring to FIGS. 16-18, the present embodiment differs from Embodiment 3 in that: the lower inflatable chamber 102 is provided therein with a first diagonal webbing strap 1021 and/or a second diagonal webbing strap 1022, both of which are in a shape of loop strip. A top end of the first diagonal webbing strap 1021 is connected to a lower surface of the partition sheet 2, while a bottom end thereof is connected to an inner surface of the side enclosure sheet 4. A top end of the second diagonal webbing strap 1022 is connected to the inner surface of the side enclosure sheet 4, while the bottom end thereof is connected to an inner surface of the bottom sheet 3.

When only the first diagonal webbing strap 1021 is provided, an upper section of the lower inflatable chamber 102 is provided with a diagonal webbing strap structure. When only the second diagonal webbing strap 1022 is provided, a lower section of the lower inflatable chamber 102 is provided with a diagonal webbing strap structure. When the first diagonal webbing strap 1021 and the second diagonal webbing strap 1022 are provided at the same time, the top section and the bottom section of the lower inflatable chamber 102 are both provided with the diagonal webbing strap structures, and the first diagonal webbing strap 1021 and the second diagonal webbing strap 1022 are symmetrically arranged.

Optionally, the first diagonal webbing strap 1021 is formed with a plurality of openings 1023 or is of a mesh-like diagonal webbing strap structure. Similarly, the second diagonal webbing strap 1022 is formed with a plurality of openings 1023 or is of a mesh-like diagonal webbing strap structure. The both solutions are within the protection scope of the present application.

The implementation principle of Embodiment 5 is as follows. When preparing the inflatable bed with sponge cushion, the first diagonal webbing strap 1021 and/or the second diagonal webbing strap 1022 are provided as required. The top end of the first diagonal webbing strap 1021 is connected to the lower surface of the partition sheet 2, while the bottom end thereof is connected to the inner surface of the side enclosure sheet 4. The top end of the second diagonal webbing strap 1022 is connected to the inner surface of the side enclosure sheet 4, while the bottom end thereof is connected to the inner surface of the bottom sheet 3. Arrangement of remaining structural components of the inflatable bed with sponge cushion is the same as that in Embodiment 3 mentioned above, and will not be repeated here.

Embodiment 6

Referring to FIGS. 19-21, the present embodiment differs from Embodiment 4 in that: the lower inflatable chamber 102 is provided therein with a first diagonal webbing strap 1021 and/or a second diagonal webbing strap 1022, both of which are in a shape of loop strip. A top end of the first diagonal webbing strap 1021 is connected to a lower surface of the partition sheet 2, while a bottom end thereof is connected to an inner surface of the lower side enclosure sheet 42. A top end of the second diagonal webbing strap 1022 is connected to the inner surface of the lower side enclosure sheet 4, while the bottom end thereof is connected to an inner surface of the bottom sheet 2.

When only the first diagonal webbing strap 1021 is provided, an upper section of the lower inflatable chamber 102 is provided with a diagonal webbing strap structure. When only the second diagonal webbing strap 1022 is provided, a lower section of the lower inflatable chamber 102 is provided with a diagonal webbing strap structure. When the first diagonal webbing strap 1021 and the second diagonal webbing strap 1022 are provided at the same time, the top section and the bottom section of the lower inflatable chamber 102 are both provided with the diagonal webbing strap structures, and the first diagonal webbing strap 1021 and the second diagonal webbing strap 1022 are symmetrically arranged.

Optionally, the first diagonal webbing strap 1021 is formed with a plurality of openings 1023 or is of a mesh-like diagonal webbing strap structure. Similarly, the second diagonal webbing strap 1022 is formed with a plurality of openings 1023 or is of a mesh-like diagonal webbing strap structure. The both solutions are within the protection scope of the present application.

The implementation principle of Embodiment 6 is as follows. When preparing the inflatable bed with sponge cushion, the first diagonal webbing strap 1021 and/or the second diagonal webbing strap 1022 are provided as required. The top end of the first diagonal webbing strap 1021 is connected to the lower surface of the partition sheet 2, while the bottom end thereof is connected to the inner surface of the lower side enclosure sheet 42. The top end of the second diagonal webbing strap 1022 is connected to the inner surface of the lower side enclosure sheet 42, while the bottom end thereof is connected to the inner surface of the bottom sheet 3. Arrangement of remaining structural components of the inflatable bed with sponge cushion is the same as that in Embodiment 3 mentioned above, and will not be repeated here.

The above are the preferred embodiments of the present application, which are not intended to limit the protection scope of the present application, therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

LIST OF REFERENCE SIGNS

• • 1 top sheet
  • 11 annular volume-enhancing flap
  • 2 partition sheet
  • 3 bottom sheet
  • 4 side enclosure sheet
  • 41 upper side enclosure sheet
  • 42 lower side enclosure sheet
  • 5 sponge cushion
  • 6 inflation and deflation assembly
  • 61 integrated inflation and deflation unit
  • 62 second air valve
  • 7 first air valve
  • 8 one-way air valve
  • 81 housing
  • 811 through hole
  • 82 one-way diaphragm
  • 821 connecting post
  • 822 circumferential retaining groove
  • 83 connecting disc
  • 831 mounting hole
  • 832 vent hole
  • 84 mounting ring
  • 9 webbing strap
  • 100 bed body
  • 101 upper cushion layer
  • 102 lower inflatable chamber
  • 1021 first diagonal webbing strap
  • 1022 second diagonal webbing strap
  • 1023 opening