ELECTRIC LIFTING BED AND METHOD FOR ASSEMBLING ELECTRIC LIFTING BED

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202411536603.3, filed on Oct. 31, 2024, which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

The present application relates to the technical field of furniture equipment, and in particular to a lifting bed and a method for assembling electric lifting bed.

BACKGROUND

Electric lifting beds are mostly made of steel or steel-wood structures. They are popular among urban users because of their lifting function, ability to adjust the height of the bed and the ability to utilize the variable space under the bed. The electric lifting bed of related technology, such as the electric lifting bed disclosed by China patents CN217161559U, CN218542118U and CN216358434U, includes a bed frame and four lifting bed legs connected to the bed frame. Specifically, a pair of lifting bed legs are installed at the head end of the bed frame, and another pair of lifting bed legs are installed at the foot end of the bed frame. Two pulling rods are connected between two lifting bed legs of each pair of lifting bed legs, and a longitudinal rod extending along the length direction of the bed frame is connected to the side of the bed frame away from the user. Two ends of the longitudinal rod are respectively connected to the two pairs of lifting bed legs. The bed frame is arranged in a rectangular shape, which includes two longitudinal beams extending along the length direction of the bed frame, and the two ends of the two longitudinal beams are respectively connected to the transverse beams, the two longitudinal beams and the two transverse beams are connected end to end to form a rectangle. A slat frame is connected between the two longitudinal beams; a fence is connected around the bed frame, and the fence is connected to the longitudinal beams and transverse beams of the bed frame by screws. After the bed frame of the electric lifting bed of this structure is assembled, connecting grooves or connecting portions for connecting the tops of the four lifting bed legs are formed at the four corners of the bed frame. Therefore, when assembling this type of electric lifting bed, it is necessary to first connect the four lifting bed legs through pull rods and longitudinal rods, and then assemble the bed frame so that the entire bed frame is installed on the tops of the four lifting bed legs, and finally complete the installation of the fence.

The above electric lifting beds have the following defects. First, the connecting portions on the bed frame for connecting the tops of the lifting bed legs are formed after the bed frame is assembled. Therefore, after the four lifting bed legs are connected by the pulling rods and longitudinal rods, the bed frame needs to be assembled on the ground. In other words, the two longitudinal bed beams and the two transverse bed beams are spliced into a rectangular frame firstly, and then the rectangular frame is hoisted to the height of the tops of the four lifting bed legs, and the connecting portions at the four corners of the rectangular frame are aligned with the tops of the four lifting bed legs to complete the assembly. However, due to the inevitable installation errors or clearance fit accuracy errors during the assembly of the rectangular frame and the connection of the four lifting bed legs, the connecting portions at the four corners of the bed frame cannot be accurately aligned with the top of the lifting bed legs. In this way, the installer needs to loosen the connecting screws of the rectangular frame to calibrate the installation accuracy of the rectangular frame or recalibrate the installation accuracy of the four lifting bed legs, which makes the installation more complicated, laborious, and time-consuming. Furthermore, the rectangular bed frame is heavy, and the operation is relatively laborious when hoisting or lifting it to the height of the tops of the lifting bed legs. In addition, after the bed frame and the lifting bed legs are assembled, a headboard assembly, a footboard assembly, a front board and a rear board of the fence need to be arranged and installed on the rectangular frame of the bed frame in sequence, which requires many installation steps and is troublesome to operate.

SUMMARY

The present application provides an electric lifting bed, including:

• • a lifting assembly, including two lifting frames and a longitudinal rod connecting the two lifting frames, wherein each lifting frame includes two lifting bed legs, and each lifting bed leg is provided with a lead screw nut assembly; wherein the two lifting bed legs include a first lifting bed leg and a second lifting bed leg;
  • at least one driving motor, the driving motor being in driving connection with four lead screw and nut assemblies in four lifting bed legs of the electric lifting bed; and
  • a bed body, including a rear blocking assembly, a front blocking assembly, a head assembly and a foot assembly, and fitting bases are respectively disposed at both ends of the rear blocking assembly and both ends of the front blocking assembly, the fitting bases are configured to be fitted with top ends of the lifting bed legs, the fitting bases at both ends of the rear blocking assembly are respectively fitted with two top ends of two first lifting bed legs of the lifting assembly, and the fitting bases at both ends of the front blocking assembly are respectively fitted with two top ends of two second lifting bed legs of the lifting assembly; the head assembly is arranged at a head end of the electric lifting bed, and two ends of the head assembly are respectively connected to an end of the rear blocking assembly and an end of the front blocking assembly; the foot assembly is arranged at a foot end of the electric lifting bed, and two ends of the foot assembly are respectively connected to another end of the rear blocking assembly and another end of the front blocking assembly.

In some embodiments, each fitting base includes a fitting groove with a downward bottom opening for accommodating the top end of the lifting bed leg, and each fitting base is connected to a fastener configured to be connected to the top of the lifting bed leg when the fitting base is fitted with the lifting bed leg.

In some embodiments, each fitting base includes an offset portion, the offset portion is at least a part of the fitting base which extends beyond an edge of the rear blocking assembly or the front blocking assembly along an extending direction of the rear blocking assembly or the front blocking assembly, and two opposite surfaces of the head assembly and the foot assembly are respectively provided with grooves for accommodating offset portions of the fitting bases.

In some embodiments, wherein each of the fitting bases is provided with a side opening, the side opening is disposed on one side close to a center of the electric lifting bed, the side opening communicates with the fitting groove and the bottom opening.

In some embodiments, the rear blocking assembly includes a first bed beam and a rear enclosure connected to a top of the first bed beam, two fitting bases are respectively disposed at two ends of the first bed beam, and a first supporting portion for supporting a supporting base of the bed body is connected to a side wall of the first bed beam that faces the front blocking assembly; the front blocking assembly includes a second bed beam and a front enclosure connected to a top of the second bed beam, two fitting bases are respectively disposed at two ends of the second bed beam, and a second supporting portion for supporting the supporting base of the bed body is connected to a side wall of the second bed beam that faces the rear blocking assembly, the second supporting portion is arranged correspondingly to the first supporting portion.

In some embodiments, at least one motor cover plate for the at least one driving motor is connected to the bed body; the electric lifting bed further includes two shielding plates for respectively shielding the at least one driving motor and wiring harness arranged at the head end and the foot end of the electric lifting bed, each shielding plate includes a first connecting portion connected to the motor cover plate and a second connecting portion connected to a bottom of the head assembly or a bottom of the foot assembly.

In some embodiments, a shielding portion is provided between a first connecting portion and a second connecting portion of each shielding plate, a first rotation portion extending along a length direction of the shielding plate is disposed between the shielding portion and the first connecting portion, and a second rotation portion extending along the length direction of the shielding plate is disposed between the shielding portion and the second connecting portion; the first connecting portion, the shielding portion and the second connecting portion are arranged to enclose a transmission rod, the driving motor and the wiring harness of the lifting frame; the first connecting portion is detachably connected to a top of the motor cover plate by a hook and loop fastener.

In some embodiments, each shielding plate is made of felt.

In some embodiments, at least one transverse rod is connected between the first lifting bed leg and the second lifting bed leg of each lifting frame.

The present application further provides a method for assembling an electric lifting bed, the method including following steps:

• • S0: obtaining an electric lifting bed, including:
  • a lifting assembly, including two lifting frames and a longitudinal rod connecting the two lifting frames, wherein each lifting frame includes two lifting bed legs, and each lifting bed leg is provided with a lead screw nut assembly; wherein the two lifting bed legs include a first lifting bed leg and a second lifting bed leg;
  • at least one driving motor, the driving motor being in driving connection with four lead screw and nut assemblies in four lifting bed legs of the electric lifting bed; and
  • a bed body, including a rear blocking assembly, a front blocking assembly, a head assembly and a foot assembly, and fitting bases are respectively disposed at both ends of the rear blocking assembly and both ends of the front blocking assembly, the fitting bases are configured to be fitted with top ends of the lifting bed legs, the fitting bases at both ends of the rear blocking assembly are respectively fitted with two top ends of the two first lifting bed legs of the lifting assembly, and the fitting bases at both ends of the front blocking assembly are respectively fitted with two top ends of two second lifting bed legs of the lifting assembly; the head assembly is arranged at a head end of the electric lifting bed, and two ends of the head assembly are respectively connected to an end of the rear blocking assembly and an end of the front blocking assembly; the foot assembly is arranged at a foot end of the electric lifting bed, and two ends of the foot assembly are respectively connected to another end of the rear blocking assembly and another end of the front blocking assembly;
  • wherein each fitting base includes a fitting groove with a downward bottom opening for accommodating the top end of the lifting bed leg, and each fitting base is connected to a fastener configured to be connected to the top of the lifting bed leg when the fitting base is fitted with the lifting bed leg;
  • S1: connecting the four lifting bed legs into two lifting frames, and connecting the longitudinal rod between the two lifting frames, so that the two lifting frames and the longitudinal rod are connected as a whole to form the lifting assembly;
  • S2: inserting the top ends of the two first lifting bed legs of the two lifting frames into the fitting bases at both ends of the rear blocking assembly respectively, and fastening the fitting bases with the top ends of the first lifting bed legs; inserting the top ends of the two second lifting bed legs of the two lifting frames into the fitting bases at both ends of the front blocking assembly respectively, and fastening the fitting bases with the top ends of the second lifting bed legs;
  • S3: placing the head assembly at the head end of the electric lifting bed to cover and connect to ends of the rear blocking assembly and the front blocking assembly that are close to the head end of the electric lifting bed; placing the foot assembly at the foot end of the electric lifting bed to cover and connect to ends of the rear blocking assembly and the front blocking assembly that are close to the foot end of the electric lifting bed.

Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the drawings.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic structural diagram of an electric lifting bed according to some embodiments of the present application.

FIG. 2 is a schematic structural diagram of a top view of an electric lifting bed according to some embodiments of the present application, with some structures omitted.

FIG. 3 is a schematic diagram of a bed assembling of an electric lifting bed according to some embodiments of the present application.

FIG. 4 is a schematic structural diagram of a rear blocking assembly of an electric lifting bed according to some embodiments of the present application.

FIG. 5 is a schematic structural diagram of a front blocking assembly of an electric lifting bed according to some embodiments of the present application.

FIG. 6 is a schematic structural diagram of a head assembly of an electric lifting bed according to some embodiments of the present application.

FIG. 7 is an enlarged partial schematic structural diagram of an electric lifting bed according to some embodiments of the present application.

FIG. 8 is a schematic structural diagram of a schematic structural diagram of a shielding plate of an electric lifting bed according to some embodiments of the present application.

FIG. 9 is a schematic diagram of a assembling of a shielding plate of an electric lifting bed according to some embodiments of the present application.

FIG. 10 is a schematic structural diagram of a front-bottom view of an electric lifting bed according to some embodiments of the present application.

FIG. 11 is a schematic structural diagram of a lifting assembly of an electric lifting bed according to some embodiments of the present application.

FIG. 12 is a schematic structural diagram of a connection between a rear blocking assembly and a lifting assembly of an electric lifting bed according to some embodiments of the present application.

FIG. 13 is a schematic structural diagram of a connection between a front blocking assembly and a lifting assembly of an electric lifting bed according to some embodiments of the present application.

FIG. 14 is a schematic diagram of a assembling of a head assembly and a foot assembly of an electric lifting bed according to some embodiments of the present application.

DESCRIPTION OF EMBODIMENTS

Those skilled in the art should understand that the embodiments and the implementations are merely used to explain the technical principles of the technical solutions of the present application and are not intended to limit the scope of protection of the technical solutions of the present application. Those skilled in the art may adjust them as needed to suit specific application scenarios.

In the description of the embodiments of the present application, it should be noted that, unless otherwise specified or limited, the terms “connected” and “connection” should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, movable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present application based on the specific circumstances.

In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being “above” or “below” a second feature may mean that the first and second features can be in direct contact, or that the first and second features can be in indirect contact through an intermediate medium. Furthermore, a first feature being “above”, “on” and “over” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “beneath” and “under” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

As used herein, singular references (e.g., “a”, “an”, “first”, “second”, etc.) do not exclude a plurality. The term “a” or “an” object, as used herein, refers to one or more of that object. The terms “a” (or “an”), “one or more”, and “at least one” are used interchangeably herein. Furthermore, although individually listed, a plurality of means, elements, or actions may be implemented by, e.g., the same entity or object. Additionally, although individual features may be included in different examples or claims, these may possibly be combined, and the inclusion in different examples or claims does not imply that a combination of features is not feasible and/or advantageous.

The present application will be further described in detail below with reference to the drawings and embodiments.

As shown in FIGS. 1 to 10, the present application discloses an electric lifting bed that includes a bed body 2 and a lifting assembly 1. The lifting assembly 1 is connected to a bottom of the bed body 2. The lifting assembly 1 can drive the bed body 2 to adjust its height. When the lifting assembly 1 descends to a lowest position, there is still an activity space between the bottom of the bed body 2 and the ground. The height of the activity space depends on the height of the lifting assembly 1 when it descends to the lowest position.

In some embodiment, the lifting assembly 1 includes two lifting frames 100 and a longitudinal rod 106 which connects the two lifting frames 100. Each lifting frame 100 includes a transmission rod 103, a driving motor 104 for driving the transmission rod 103 to rotate, and two lifting bed legs: a first lifting bed leg 101 and a second lifting bed leg 102. Two ends of the transmission rod 103 are respectively connected to two lead screw nut assemblies respectively in the two lifting bed legs of each lifting frame. That is, the driving motor 104 drives the first lifting bed leg 101 and the second lifting bed leg 102 to extend and retract synchronously through the transmission rod 103.

In some embodiments, the electric lifting bed may include four driving motors, each of which is driven and connected to a corresponding lead screw nut assembly in each lifting bed leg. Also, the electric lifting bed may include two driving motors, and one driving motor is driven and connected to two lead screw nut assemblies in any two adjacent lifting bed legs through one transmission rod and the other driving motor is driven and connected to two lead screw nut assemblies in the left two lifting bed legs through one transmission rod. In some embodiments, the electric lifting bed may include one driving motor, and the driving motor is driven and connected to the lead screw nut assemblies in the four lifting bed legs through transmission rods.

As shown in FIGS. 1 and 2, the lifting assembly 1 includes four lifting bed legs, which are combined in pairs to form the two lifting frames 100 located at a head end and a foot end of the electric lifting bed, respectively. In each lifting frame 100, at least one transverse rod 105 is connected between the two lifting bed legs, namely: the at least one transverse rod 105 is connected between the first lifting bed leg 101 and the second lifting bed leg 102 in each lifting frame. Each lifting bed leg is connected to a lead screw nut assembly that drives the lifting bed leg axially to extend and retract.

Specifically, an upper end of each lifting bed leg is connected to a gearbox that is in transmission connection with the lead screw nut assembly. In some embodiments, both ends of the transmission rod 103 of each lifting frame 100 are respectively in transmission connection with two gearboxes connected to the two lifting frames 100. A driving motor 104 is connected close to one of the lifting bed legs and in transmission connection with the transmission rod 103 to drive the transmission rod 103 to rotate. Therefore, the first lifting bed leg 101 and the second lifting bed leg 102 in the same lifting frame can be synchronously raised and lowered. Furthermore, at least one longitudinal rod 106 may be is provided to connect the two lifting frames 100. This longitudinal rod 106 can be disposed on the side of the electric lifting bed away from the user or on the side against the wall. The ends of the longitudinal rod 106 are respectively connected to the two first lifting bed legs 101 of the two lifting frames 100. Therefore, the two lifting frames 100 and the longitudinal rod 106 form a integrated unit, forming the lift assembly 1.

In some embodiments, the electric lifting bed further includes a hand controller 107 and a controller 108. The controller 108 is connected to one of the lifting bed legs of the lifting frames 100, and the hand controller 107 may be mounted on a side wall of the electric lifting bed which is close to the user. A power cord of the controller 108 extends downwards to connect to a indoor power cord, and the controller 108 is connected to the head end of the electric lifting bed 2. The controller 108 may be electrically connected to the driving motor(s) 104 via a wiring harness.

In some embodiments, the bed body 2 of the electric lifting bed includes a rear blocking assembly 200, a front blocking assembly 201, a head assembly 202 and a foot assembly 203. The rear blocking assembly 200, the front blocking assembly 201, the head assembly 202 and the foot assembly 203 are sequentially arranged to form a frame and a fence of the bed body 2. In order to facilitate the connection between the bed body 2 and the lifting assembly 1□ as shown in FIGS. 1, 3, 4, 5 and 6, both ends of the rear blocking assembly 200 and both ends of the front blocking assembly 201 are respectively connected to fitting bases that match the top ends of the four lifting bed legs. The fitting bases 204 at both ends of the rear blocking assembly 200 are respectively fitted with the top ends of the two first lifting bed legs 101 of the lifting assembly 1, and the fitting bases 204 at both ends of the front blocking assembly 201 are respectively fitted with the top ends of the two second lifting bed legs 102 of the lifting assembly 1. The head assembly 202 is arranged at the head end of the electric lifting bed, and two ends of the head assembly are respectively connected to one end of the rear blocking assembly 200 and one end of the front blocking assembly 201. The foot assembly 203 is arranged at the foot end of the electric lifting bed, and two ends of the foot assembly are respectively connected to the other end of the rear blocking assembly 200 and the other end of the front blocking assembly 201.

As shown in FIGS. 4 and 5, two fitting bases 204 are connected to the inner sidewalls of both ends of the rear blocking assembly 200. That is, the two fitting bases 204 are connected to the wall, which faces the front blocking assembly, of the rear blocking assembly 200. The fitting bases 204 are formed by bending metal plates, and each fitting base 204 has a fitting groove 205 with a downward bottom opening 206 for accommodating the top end of the lifting bed leg. Because the lifting bed leg is rectangular, the fitting groove 205 is configured as a square fitting groove 205 that matches the top of the lifting bed leg. The fitting bases 204 may be connected to fasteners, such as connecting screws, which connect to the top ends of the lifting bed legs when the fitting bases 204 are fitted with the top ends of the lifting bed legs. The rear blocking assembly 200 is located on the back of the electric lifting bed. The two fitting bases 204 of the rear blocking assembly 200 are fitted by being plugged by the top ends of the two first lifting bed legs 101 of the lift assembly 1 from top to bottom and are fastened with the top ends of the two first lifting bed legs 101 via connecting screws. Similarly, the fitting bases 204 at both ends of the front blocking assembly 201 are the same as the fitting bases 204 at both ends of the rear blocking assembly 200. After being plugged by the top ends of the two second lifting bed legs 102, they are fastened with the top ends of the two second lifting bed legs 102 through connecting screws.

In some embodiments, as shown in FIGS. 4 and 5, each fitting base 204 is provided with a side opening 207. The side opening 207 is disposed on one side close to the center of the electric lifting bed, the side opening 207 communicates with the fitting groove 205 and the bottom opening 206. In other words, the side of the fitting base 204 near the center of the bed body 2 is set as the side opening. On the one hand, the side opening can be configured to spare a space for the transmission rod 103 installed at the top end of the lifting bed leg. On the other hand, when the fitting base 204 is plugged by the top end of the lifting bed leg, it can not only be plugged by the top end of the lifting bed leg from top to bottom through the opening 206 at the bottom, but also can be plugged by the top end of the lifting bed leg by horizontal movement through the side opening 207, thereby making the connection between the rear blocking assembly 200 and the front blocking assembly 201 more convenient and simple.

With above arrangements, when assembling the electric lifting bed, the lifting bed legs are connected in pairs to form two lifting frames 100, which are then connected via a longitudinal rod 106. Since both the rear blocking assembly 200 and the front blocking assembly 201 of the bed body 2 are connected with fitting bases 204 fitted with the top ends of the lifting bed legs, when assembling the bed body 2, the fitting bases 204 at both ends of the rear blocking assembly 200 are respectively plugged by and fastened with the top ends of the two first lifting bed legs 101 of the two lifting frames. Then, the fitting bases 204 at both ends of the front blocking assembly 201 are respectively plugged by and fastened with the top ends of the two second lifting bed legs 102 of the two lifting frames. Finally, the head assembly 202 and foot assembly 203 are connected and covered with the ends of the rear blocking assembly 200 and the front blocking assembly 201. This completes the assembly of the bed body 2 frame and the substantially complete assembly of the electric lifting bed fence. Therefore, the electric lifting bed is simple, convenient, and time-saving to be assembled.

The rear blocking assembly 200 and the front blocking assembly 201 are sequentially connected to the top ends of the lifting bed legs of the lifting assembly 1. This avoids the need to hoist the entire bed body 2 to height of the top ends of the lifting bed legs after it is assembled. Therefore, the assembling is labor-saving and simple, and avoids the defect of difficulty in accurately aligning the top ends of the lifting bed legs of the lifting assembly 1 due to assembly accuracy errors of the entire bed body 2. Furthermore, the rear blocking assembly 200 and the front blocking assembly 201 are firstly connected to the top ends of the lifting bed legs through the fitting bases 204 and then fastened. Therefore, when installing the rear blocking assembly 200 or the front blocking assembly 201, it is only necessary to plug the fitting groove 205 of the fitting base 204 by the top ends of the lifting bed legs, without the need for manual lifting or hoisting, which is very labor-saving. Moreover, during the assembling, the inner top wall of the fitting groove 205 of each fitting base 204 abuts against the top ends of the corresponding lifting bed leg, and there is a flat contact between the two. This makes it easy to determine the levelness of the rear blocking assembly 200 or the front blocking assembly 201 the assembling, further improving assembly accuracy.

Furthermore, the electric lifting bed of the present application may have a modular installation structure. The rear blocking assembly 200, front blocking assembly 201, head assembly 202, and foot assembly 203 of the bed body 2 are all already assembled when the product leaves the factory. Therefore, the assembling process of the electric lifting bed is simple. In particular, after the rear blocking assembly 200, front blocking assembly 201, head assembly 202, and foot assembly 203 of the bed body 2 are assembled, the frame of the electric lifting bed is connected, eliminating the need to install the fence after the frame is installed. Therefore, the electric lifting bed is not only simple in structure but also quick to install.

In some embodiment, the bed body 2 further includes a supporting base, such as slat frame 109, which is disposed between the rear blocking assembly 200 and the front blocking assembly 201. The rear blocking assembly 200 is an integrated piece, which means that it is assembled into a single piece when the electric lifting bed leaves the factory. As shown in FIG. 4, the rear blocking assembly 200 includes a first bed beam 208 and a rear enclosure 209 connected to a top of the first bed beam 208. Two fitting bases 204 are respectively disposed at sidewalls of two ends of the first bed beam 208. A first supporting portion 210 for supporting the supporting base of the bed body 2 is connected to a sidewall of the first bed beam 208 that faces the front blocking assembly. The rear enclosure 209 serves as a rear side portion of the fence of the bed body 2. The first supporting portion 210 may be a plurality of outwardly protruding supporting rods along the inner wall of the first bed beam 208. The tops of the supporting rods can be connected to or supported by one side of the slat frame 109.

In some embodiments, the rear blocking assembly 200 may also be separated into two independent parts, namely the first bed beam 208 and the rear enclosure 209. After the installer connects the first bed beam 208 to the top of the two first lifting bed legs 101 of the lifting assembly 1, the installer then connects the rear enclosure 209 to the top of the first bed beam 208 using connecting screws.

As shown in FIG. 5, the front blocking assembly 201 includes a second bed beam 211 and a front enclosure 212 connected to a top of the second bed beam 211. Fitting bases 204 are connected to sidewalls of both ends of the second bed beam 211. Second supporting portion 213, corresponding to the first supporting portion 210 and connected to the slats frame 109 of the bed body 2, are connected to the inner sidewall of the second bed beam 211. The second supporting portion 213 may be a plurality of protruding supporting rods along the inner wall of the second bed beam 211. The tops of these supporting rods support or connect the other side of the slat frame 109. The front blocking assembly 201 may be designed as a split unit, but can also be connected as a single unit at the factory.

Furthermore, the front blocking assembly 201 is provided with an entrance for the user to get into the bed body 2, therefore a length of the front enclosures 212 is smaller than a length of the second bed beam 211. The entrance may be set at the left or right end of the front blocking assembly 201 according to the user's needs. In addition, the first bed beam 208 and the second bed beam 211 are both hollow structures, and their interiors are configured for accommodating wiring harnesses. For example, the first bed beam 208 can route the wiring between the controller 108 and the driving motor 104, while the second bed beam 211 can route the wiring between the controller 108 and the hand control 107.

In some embodiments, each fitting base includes an offset portion, the offset portion is at least a part of the fitting base which extends beyond an edge of the rear blocking assembly or the front blocking assembly along a extending direction of the rear blocking assembly or the front blocking assembly, and two opposite surface of the head assembly and the foot assembly are respectively provided with grooves for accommodating offset portions of the fitting bases. Specifically, the fitting bases 204 are at least partially protruded from the outer side of the end surfaces of the rear blocking assembly 200 or the front blocking assembly 201. Each of the fitting bases is provided with an side opening, the side opening is disposed on one side close to the center of the electric lifting bed, the side opening communicates with the fitting groove and the bottom opening. Grooves 214 are provided on the sides of the head assembly 202 and the foot assembly 203 adjacent to the frame of the bed for the offset portions of the fitting bases 204 to fit into. These arrangements allow the head assembly 202 and the foot assembly 203 to cover the ends of the rear blocking assembly 200 and the front blocking assembly 201, respectively, after the assembling. Furthermore, the connections between the head assembly 202 as well as the foot assembly 203 and the rear blocking assembly 200 as well as the front blocking assembly 201 can be more secure and compact.

As shown in FIGS. 3 and 6, the fitting bases 204 at both ends of the rear blocking assembly 200 and the front blocking assembly 201 extend outward from the rear blocking assembly 200 and the front blocking assembly 201, respectively. Two grooves 214 are provided on both side of the inner wall of the head assembly 202. After the head assembly 202 is connected to the ends of the rear blocking assembly 200 and the front blocking assembly 201, the offset portions of the fitting bases 204 are embedded in the two grooves 214. The engagement of the offset portions of the fitting bases 204 with the grooves 214 of the head assembly 202 prevents the head assembly 202 from moving horizontally, thereby making the connection between the head assembly 202 and the ends of the rear blocking assembly 200 and the front blocking assembly 201 more secure and stable. In addition, the foot assembly 203 has the same structures as the head assembly 202, and a repetitive description thereof will be omitted.

In some embodiments, the power cord(s) of the controller 108 of the electric lifting bed is connected to the indoor power cord along one of the lifting bed legs, and the controller 108 is connected to the head of the bed body 2. The controller 108 is electrically connected to the driving motor(s) 104 of the two lifting frames 100 through a wiring harness. Specifically, the driving motor 104 of one lifting frame 100 may be connected to the controller 108 through a wiring harness, and the wiring harness may be arranged at the head end of the electric lifting bed, and the driving motor 104 of the other lifting frame 100 is connected to the controller 108 through the inner hole of the first bed beam 208 through the wiring harness, and the wiring harness is at least partially arranged at the foot end of the electric lifting bed. The wiring of the hand controller 107 passes through part of the second bed beam 211 and is electrically connected to the controller 108 at the head end of the electric lifting bed, and the wiring is also arranged at the head end of the electric lifting bed. Additionally, other accessories of the electric lifting bed may also be electrically connected to the controller 108, such as a table lamp under the bed, the personnel detection unit on the bed 2, etc., which also need to be electrically connected to the controller 108 with a wiring harness, and the wiring harness and wiring harness connectors are all arranged at the head end or the foot end of the electric lifting bed. Therefore, in addition to the transmission rod(s) 103 and the driving motor(s) 104 of the lifting frame 100, the controller 108 and various line harnesses may also be arranged at the head end or the foot end of the electric lifting bed, so that the user may be allowed to see the transmission rod(s) 103 and the driving motor(s) 104 of the lifting frame 100, the controller 108 and various line harnesses under the bed 2. in other words, the transmission rod(s) 103 and the driving motor(s) 104, the controller 108 and various line harnesses of the lifting frame 100 may be exposed, posing a safety hazard.

In some embodiments, in order to prevent the transmission rod 103 and the driving motor 104, the controller 108 and the wiring harnesses at the head end or the foot end of the electric lifting bed from being exposed, and further to improve the convenience of line maintenance, as shown in FIGS. 7, 8 and 9, the electric lifting bed further includes two shielding plates 4 and at least one motor cover plate. The two shielding plates 4 are arranged corresponding to the two lifting frames 100 respectively and for respectively shielding the at least one driving motor and wiring harness arranged at the head end and the foot end of the electric lifting bed. The at least one motor cover plate 3 is connected to the bed body 2 above the two lifting frames 100 and correspondingly covering the at least one driving motor 104. Each shielding plate 4 has a first connecting portion 400 connected to the motor cover plate 3 and a second connecting portion 401 connected to a bottom of the head assembly 202 or a bottom of the foot assembly 203, thereby shielding the transmission rod 103 of the lifting frames, the driving motor 104 and the wiring harness arranged at the head end or foot end of the electric lifting bed. The shielding plate 4 is configured to shield at least one of the transmission rod 103, driving motor(s) 104 of the lifting frame 100, and the wiring harness arranged at the head end or foot end of the electric lifting bed, preventing these elements from being exposed, thereby improving the safety of the electric lifting bed. In addition, when the entire circuit of the electric lifting bed is under maintenance, it is only necessary to remove the shielding plates 4 to inspect, thereby making the circuit maintenance operation simple and convenient. Moreover, after the circuit maintenance is completed, it is only necessary to connect the first connecting portion 400 and the second connecting portion 401 of each shielding plate 4 to the motor cover plate 3 and the bottom of the bed body 2 respectively, which is very simple and labor-saving to install.

As shown in FIG. 9, the electric lifting bed may include two motor cover plates 3, which are respectively connected to the head end and the foot end of the electric lifting bed. The electric lifting bed may further include two shielding plates 4, which are respectively arranged at the head end and the foot end of the electric lifting bed. The motor cover plates 3 may be wooden plates, which are laid between the first bed beam and the second bed beam of the bed body 2. The tops of the motor cover plates 3 are flush with the slat frame 109 of the bed body 2. The motor cover plate 3 is arranged above the lifting frames 100 to cover the transmission rod(s) 103 and the driving motor(s) 104 of the lifting frames 100 when the user views from top. A length direction of each shielding plate 4 is consistent with a width direction of the bed. The shielding plates 4 are thin plates with a relatively thin thickness. The first connecting portion 400 of the shielding plate 4 is connected to a top of the motor cover plate 3. The first connecting portion 400 of the shielding plate 4 extends downward and then extends toward the head end or foot end direction of the electric lifting bed to the bottom of the head assembly 202 or the foot assembly 203, and is connected to the bottom of the head assembly 202 or the foot assembly 203 by screws, so that the shielding plates 4, the motor cover plate 3 and the head assembly 202 or the shielding plates 4, the motor cover plate 3 and the foot assembly 203 enclose a shielding space to shield at least the transmission rod 103, the driving motor 104, the wiring harness and the wiring harness connectors.

As shown in FIGS. 6, 7 and 8, a shielding portion 402 is provided between the first connecting portion 400 and the second connecting portion 401 of the shielding plate 4. A first rotation portion 404 extending along the length direction of each shielding plate 4 is provided between the shielding portion 402 and the first connecting portion 400. A second rotation portion 405 extending along the length direction of the shielding plate 4 is provided between the shielding portion 402 and the second connecting portion 401. The first connecting portion 400, the shielding portion 402 and the second connecting portion 401 are arranged around the outside of at least the transmission rod 103, the driving motor 104 and the wiring harness of the lifting frames 100. The first connecting portion 400 is detachably connected to the top of the motor cover plate 3 by hook and loop fastener(s). In other words, the shielding plate 4 includes three parts, namely the first connecting portion 400, the shielding portion 402 and the second connecting portion 401, where the first connecting portion 400 can rotate around the first rotation portion 404 relative to the shielding portion 402, and the second connecting portion 401 can rotate around the second rotation portion 405 relative to the shielding portion 402, so as to facilitate the installation of the shielding plates 4. During the assembling, the first connecting portion 400 and the second connecting portion 401 can be rotated to a suitable angle or position relative to the shielding portion 402 to connect with the motor cover plate 3 and the bottom of the bed body 2. Similarly, when the bed is packaged before leaving the factory, the shielding plates 4 can be rotated and folded to reduce the packaging volume.

When disassembling the shielding plate 4, it is only necessary to disconnect the first connecting portion 400 from the the hook and loop fastener on the motor cover plate 3 to open the shielding plate 4 and expose the shielded elements. This makes it convenient for maintenance personnel to inspect and repair. After the inspection is completed, the first connecting portion 400 of the shielding plate 4 can be assembled again. That is, the first connecting portion 400 of the shielding plate 4 can be bonded to the hook and loop fastener on the motor cover plate 3 again.

In some embodiments, the shielding plates 4 are made of felt, which can not only be bonded to the hook and loop fastener on the motor cover plate 3, but also be convenient for shaping or bending. The first rotation portion 404 and the second rotation portion 405 of the shielding plate 4 may be indentations or grooves on the shielding plate 4, and their thickness is less than the thickness of the shielding plate 4, which facilitates the rotation of the first connecting portion 400 and the second connecting portion 401.

In order to make the shielding plates 4 more tightly coupled to the bed body 2, as shown in FIGS. 7, 8 and 10, a clearance groove 403 is provided on the first connecting portion 400 of the shielding plates 4 to spare a space for the longitudinal rod of the bed. The clearance groove 403 at least partially extends to the shielding portion 402. Therefore, after the shielding plates 4 are assembled, the first connecting portion 400 of the shielding plate 4 is parallel to the top surface of the electric lifting bed, the shielding portion 402 is parallel to the height direction of the electric lifting bed, and the second connecting portion 401 of the shielding 4 is parallel to the first connecting portion 400. This not only better shields the transmission rod 103, the driving motor 104, the wiring harness and the controller 108, but also makes the bottom of the bed body 2 more neat and aesthetically pleasing.

As shown in FIGS. 11 to 14, the present application discloses a method for assembling the electric lifting bed of any one of the above embodiments. The method includes the following steps. S1: connecting the four lifting bed legs into two lifting frames 100, and connecting the longitudinal rod 106 between the two lifting frames 100, so that the two lifting frames 100 and the longitudinal rod 106 are connected as a whole to form the lifting assembly 1. Specifically, as shown FIG. 11, the four lifting bed legs may be connected in pairs to form two lifting frames 100. That is, two transverse rods 105 are connected between the first lifting bed leg 101 and the second lifting bed leg 102 of each lifting frame 100, and two parallel longitudinal rods 106 are connected between the two first lifting bed legs 101 of the two lifting frames 100. Thus, the four lifting bed legs, the transverse rods 105, and the longitudinal rods 106 are connected as a whole to form a lifting assembly 1. As shown in FIG. 12, step S2 of the method includes: inserting the top ends of the two first lifting bed legs 101 of the two lifting frames 100 into the fitting bases 204 at both ends of the rear blocking assembly 200 respectively, and fastening the fitting bases 204 with the top ends of the first lifting bed legs 101; inserting the top ends of the two second lifting bed legs 102 of the two lifting frames 100 into the fitting bases 204 at both ends of the front blocking assembly 201 respectively, and fastening the fitting bases 204 with the top ends of the second lifting bed legs 102. In step S2, the rear blocking assembly 200 is located on the back of the electric lifting bed, and the two fitting bases 204 at both ends of the rear blocking assembly 200 are inserted from top to bottom by the top ends of the two first lifting bed legs 101 of the lift assembly 1, and are fastened with the top ends of the two first lifting bed legs 101 by connecting screws. Similarly, as shown in FIG. 13, the fitting bases 204 at both ends of the front blocking assembly 201 are arranged identically to the fitting bases 204 at both ends of the rear blocking assembly 200. After being plugged by the top ends of the two second lifting bed legs 102, they are fastened with the top ends of the two second lifting bed legs 102 via connecting screws. As shown in FIG. 14, step S3 of the method includes: placing the head assembly 202 at the head end of the electric lifting bed to cover and connect to ends of the rear blocking assembly 200 and the front blocking assembly 201 that are close to the head end of the electric lifting bed; placing the foot assembly 203 at the foot end of the electric lifting bed to cover and connect to ends of the rear blocking assembly 200 and the front blocking assembly 201 that are close to the foot end of the electric lifting bed.

After the step S2 is completed, the hand controller 107 needs to be installed on the second bed beam 211 of the front blocking assembly 201, and the wiring between the hand controller 107 and the controller 108 needs to be connected. After the hand controller 107 and the wiring between the hand controller 107 and the controller 108 are connected, the operation of step S3 can be carried out.

It is not difficult to understand that since the assembling is affected by factors such as the assembling environment and the skills of the installer, when connecting each component with screws, such as connecting the head assembly 202 and the foot assembly 203, it is generally necessary to pre-tighten the screws first. After all the screws are pre-tightened and the connections of the components are aligned, all the screws are tightened.

After the above step S3 is completed, the armrests of the bed body 2 may be installed. That is, two armrests can be connected at one end of the front blocking assembly 201 close to the foot end of the electric lifting bed and one end of the foot assembly 203 close to the front blocking assembly 201. Finally, the bed body 2, slat frame 109 can be installed, the lines and wiring can be connected, and the power can be tested. Finally, the motor cover plate 3, the shielding plates 4 and other accessories of the electric lifting bed can be connected.

In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation; be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

In the description of the present application, the description with reference to the terms “one embodiment”, “some embodiments”, “in the present embodiment”, “specific example”, or “some examples” means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

The above description is merely of a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.