FOLDABLE STORAGE BOX

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202610060934.7, filed on Jan. 16, 2026, which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the technical field of storage boxes, and in particular, to a foldable storage box.

BACKGROUND

Currently, a foldable storage box is a box which is configured to store articles and may be folded into a plate-shaped structure when not in use or during transportation, thereby reducing the occupied space when not in use or during transportation. However, existing foldable storage boxes are folded by: hinging front, back, left, and right side plates to four side edges of a bottom plate, respectively, where a hinge point between the front side plate and the corresponding side edge of the bottom plate is higher than a hinge point between the back side plate and the corresponding side edge of the bottom plate, the hinge point between the back side plate and the corresponding side edge of the bottom plate is higher than hinge points between the left and right side plates and the corresponding side edges of the bottom plate, the hinge points between the left and right side plates and the corresponding side edges of the bottom plate have a same height, and the sum of the heights of the left and right side plates is less than or equal to a length of the bottom plate. During folding, according to this solution, the left/right side plates, the back side plate, and the front side plate are sequentially rotated and folded inward along the hinge points at different heights and laid flat against the bottom plate to form a plate-shaped structure.

It can be seen that in the existing folding mode, the front side plate, the back side plate, and the left/right side plates are each provided with a hinge point, resulting in a total of three layers of hinge points with successively increased heights. After folding, the front side plate, the back side plate, the left/right side plates, and the bottom plate are directly stacked in four layers in sequence. This causes an excessively large overall thickness after folding, which leads to a large occupied space during storage or transportation when not in use and a great increase in transportation costs.

Therefore, the applicant hereby proposes a foldable storage box to resolve the foregoing problems.

SUMMARY

To overcome the deficiencies in the related art, the present disclosure provides a foldable storage box that reduces the number of hinge points and embeds box side plates into a box back plate so as to reduce a stacking thickness.

The technical solution of the present disclosure is as follows:

The present disclosure provides a foldable storage box, including a box bottom plate, a box back plate, a box frame plate, and box side plates. A front side of the box bottom plate is hinged to a bottom end of the box frame plate via a front rotating portion, and a back side of the box bottom plate is hinged to a bottom end of the box back plate via a back rotating portion. A height of the front rotating portion is greater than that of the back rotating portion. The box side plates are detachably arranged on left and right ends of the box bottom plate, respectively. Two sides of the box side plate are detachably connected to inner sides of the box back plate and the box frame plate, respectively. A first connecting portion is arranged on a back side face of the box back plate along a length direction thereof, and a second connecting portion is arranged on an inner side face of the box side plate. During folding, the second connecting portion is in connected fit with the first connecting portion.

The present disclosure further provides a foldable storage box, including a box bottom plate, a box back plate, a box frame plate, and box side plates. A front side of the box bottom plate is hinged to a bottom end of the box frame plate via a front rotating portion, and a back side of the box bottom plate is hinged to a bottom end of the box back plate via a back rotating portion. The front rotating portion and the back rotating portion have a same height, and a sum of heights of the box back plate and the box frame plate is less than or equal to a width of the box bottom plate. The box side plates are detachably arranged on left and right ends of the box bottom plate, respectively. Two sides of the box side plate are detachably connected to inner sides of the box back plate and the box frame plate, respectively. A first connecting portion is arranged on a back side face of the box back plate along a length direction thereof, and a second connecting portion is arranged on an inner side face of the box side plate. During folding, the second connecting portion is in connected fit with the first connecting portion.

Further, a plurality of insertion holes are formed in the left and right ends of the box bottom plate along a width direction thereof. A plurality of insertion blocks are arranged at a bottom end of the box side plate along a width direction thereof. The insertion blocks are in inserted fit with the insertion holes.

Further, insertion grooves are formed in inner sides of both ends of the box back plate and the box frame plate along a height direction thereof. Two lateral sides of the box side plate are in inserted fit with the insertion grooves.

Further, an embedding groove is formed in the first connecting portion. An embedding strip is arranged on the second connecting portion. The embedding strip is in embedded fit with the embedding groove.

Further, a plurality of first reinforcing blocks are equidistantly arranged in the embedding groove along a length direction thereof.

Further, a recessed groove is formed in an outer side face of the box side plate. A second reinforcing block is arranged in the recessed groove.

Further, the front rotating portion includes a rotating platform, rotating shafts, and rotating half-rings. The rotating platform is arranged on a front side of the box bottom plate along a length direction thereof. A plurality of rotating grooves are formed in the rotating platform. The rotating shafts are transversely arranged in the rotating grooves, respectively. The plurality of rotating half-rings are arranged at a bottom end of the box frame plate. The rotating half-rings are rotatably connected to the rotating shafts.

Further, the box frame plate is provided with an opening. Box doors are rotatably mounted in two ends of the opening.

Further, a cover plate is further included. Insertion strips are arranged at top ends of the box back plate, the box frame plate, and the box side plates. Insertion ports in inserted fit with the insertion strips are formed on a bottom face of the cover plate.

The beneficial effects achieved by the present disclosure are as follows:

The present disclosure provides a foldable storage box. In Embodiment 1, a box back plate and a box frame plate are respectively hinged to a box bottom plate via a front rotating portion and a back rotating portion having a height difference. Box side plates are detachably connected to the box bottom plate, the box back plate, and the box frame plate. During folding, the box side plates are embedded into a first connecting portion on a back side face of the box back plate via a second connecting portion, such that the second connecting portion overlaps with the first connecting portion, thereby effectively reducing the overall thickness after folding, minimizing the space occupied during storage or transportation when not in use, and significantly lowering transportation costs.

In Embodiment 2, a box back plate and a box frame plate are respectively hinged to a box bottom plate via a front rotating portion and a back rotating portion having a same height. Box side plates are detachably connected to the box bottom plate, the box back plate, and the box frame plate. During folding, the box side plates are embedded into a first connecting portion on a back side face of the box back plate via a second connecting portion, such that the second connecting portion overlaps with the first connecting portion, thereby effectively reducing the overall thickness after folding, minimizing the space occupied during storage or transportation when not in use, and significantly lowering transportation costs.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a three-dimensional schematic diagram of the present disclosure.

FIG. 2 is an exploded view of the present disclosure.

FIG. 3 is an enlarged view of portion A in FIG. 2.

FIG. 4 is an enlarged view of portion B in FIG. 2.

FIG. 5 is a three-dimensional schematic diagram of a box frame plate.

FIG. 6 is a schematic diagram of a folded state of the present disclosure.

FIG. 7 is an exploded view of a folded state of the present disclosure.

FIG. 8 is an enlarged view of portion C in FIG. 7.

FIG. 9 is a three-dimensional schematic diagram of an inner side of a box side plate.

FIG. 10 is a three-dimensional schematic diagram of an outer side of a box side plate.

FIG. 11 is a cross-sectional view of embedding of a box side plate and a box back plate.

FIG. 12 is an enlarged view of portion D in FIG. 11.

DESCRIPTION OF EMBODIMENTS

To facilitate understanding of the present disclosure by a person skilled in the art, specific implementations of the present disclosure are clearly described below in conjunction with the accompanying drawings. Obviously, the described specific implementations are merely preferred implementations of the present disclosure, rather than all implementations.

As shown in FIG. 1 to FIG. 12, the present disclosure provides a foldable storage box, which may be unfolded for storing articles in use and folded into a plate-shaped structure when not in use, facilitating storage and transportation. The foldable storage box includes a box bottom plate 1, a box back plate 2, a box frame plate 3, and box side plates 4. A front side of the box bottom plate 1 is hinged to a bottom end of the box frame plate 3 via a front rotating portion 5, and a back side of the box bottom plate 1 is hinged to a bottom end of the box back plate 2 via a back rotating portion 6. A height of the front rotating portion 5 is greater than that of the back rotating portion 6. The box side plates 4 are detachably arranged on left and right ends of the box bottom plate 1, respectively. Two sides of the box side plate 4 are detachably connected to inner sides of the box back plate 2 and the box frame plate 3, respectively. A sum of heights of the two box side plates 4 is less than or equal to a length of the box bottom plate 1. A first connecting portion 21 is arranged on a back side face of the box back plate 2 along a length direction thereof, and a second connecting portion 41 is arranged on an inner side face of the box side plate 4. During folding, the second connecting portion 41 is in connected fit with the first connecting portion 21. When the box needs to be folded for storage when not in use, the two box side plates 4 are first pulled upward to disconnect from the box bottom plate 1, the box back plate 2, and the box frame plate 3. Next, the box back plate 2 is rotated and folded inward along the back rotating portion 6 to keep horizontal with the box bottom plate 1. Then, the two box side plates 4 are sequentially connected into two ends of the first connecting portion 21 arranged on the back side face of the box back plate 2 via the second connecting portions 41 arranged on the inner side faces, while keeping horizontal. Then, the box frame plate 3 is rotated and folded inward along the front rotating portion 5 to be stacked horizontally with the box back plate 2 and the left and right side plates, to form a plate-shaped structure.

A plurality of insertion holes 11 are formed in the left and right ends of the box bottom plate 1 along a width direction thereof. A plurality of insertion blocks 42 are arranged at a bottom end of the box side plate 4 along a width direction thereof. The insertion blocks 42 are in inserted fit with the insertion holes 11, to achieve a function of fixed and detachable connection between the box side plate 4 and the box bottom plate 1.

Insertion grooves 22 are formed in inner sides of both ends of the box back plate 2 and the box frame plate 3 along a height direction thereof. Two lateral sides of the box side plate 4 are in inserted fit with the insertion grooves 22, to achieve a function of fixed and detachable connection between the box side plate 4 and the box back plate 2 as well as the box frame plate 3.

An embedding groove 211 is formed in the first connecting portion 21. An embedding strip 411 is arranged on the second connecting portion 41. The embedding strip 411 is in embedded fit with the embedding groove 211. During folding, the two box side plates 4 are embedded and fixed to two ends of the back side face of the box back plate 2, thereby reducing the stacking thickness between the box side plates 4 and the box back plate 2. Specifically, in comparison with an existing flat side plate structure under the same dimensions, for example, if the thickness of both the flat box back plate 2 and the flat box side plates 4 is set to 5 millimeters, the overall height after stacking reaches 10 millimeters. However, if the overall thickness of the box side plates 4 in the present application is set to 5 millimeters, the thicknesses of the box side plates 4 and the thickness of the embedding strip 411 are 2.5 millimeters, the thickness of the box back plate 2 is 5 millimeters, and a depth of the embedding groove 211 formed on the back side face thereof is 2.5 millimeters. When the box side plates 4 are stacked on the box back plate 2, the embedding strip 411 is embedded into the embedding groove 211, so that the overall height of the box side plates 4 and the box back plate 2 after stacking is only 7.5 millimeters. In other words, only two sequentially raised hinge points are required, and after folding, the box bottom plate 1, the box back plate 2, the box frame plate 3 and the box side plates 4 are stacked in three and a half layers in sequence.

A plurality of first reinforcing blocks 212 are equidistantly arranged in the embedding groove 211 along a length direction thereof. The reinforcing block 212 is of a hollow structure, which reinforces the overall strength of the box back plate 2 while reducing the weight.

A recessed groove 42 is formed in an outer side face of the box side plate 4. A second reinforcing block 421 is arranged in the recessed groove 42, which reinforces the overall strength of the box side plate 4 while reducing the weight.

The front rotating portion 5 and the back rotating portion 6 have a same structure, except that the portions are mounted at different positions. The front rotating portion 5 includes a rotating platform 51, rotating shafts 52, and rotating half-rings 53. The rotating platform 51 is arranged on a front side of the box bottom plate 1 along a length direction thereof. A plurality of rotating grooves 511 are formed in the rotating platform 51. The rotating shafts 52 are transversely arranged in the rotating grooves 511, respectively. The plurality of rotating half-rings 53 are arranged at a bottom end of the box frame plate 3. The rotating half-rings 53 are rotatably connected to the rotating shafts 52, to achieve a function of inward rotational folding of the box back plate 2 or the box frame plate 3.

The box frame plate 3 is provided with an opening. Box doors 31 are rotatably mounted in two ends of the opening, to achieve a function of opening and closing the box doors. A first magnetic member 32 is arranged at a middle end of the opening. The first magnetic member 32 is preferably a magnet in this embodiment. A second magnetic member 33 is arranged on an inner side of an opening and closing end of the box door 31. The second magnetic member 33 is preferably a metal part in this embodiment. A magnetic fit between the first magnetic member 32 and the second magnetic member 33 achieves a locking function of the box door when closed.

A cover plate 7 is further included. Insertion strips 71 are arranged at top ends of the box back plate 2, the box frame plate 3, and the box side plates 4. Insertion ports in inserted fit with the insertion strips 71 are formed on a bottom face of the cover plate 7, to achieve insertion and fixing of the cover plate.

A fastening assembly 8 composed of fastening members 81 and fastening strips 82 is further arranged between the box side plates 4 and the cover plate 7. The fastening members 81 are rotatably arranged at top ends of the outer sides of the box side plates 4. The fastening strips 82 are arranged at two ends of the cover plate 7. The fastening members 81 are in fastening fit with the fastening strips 82, to improve the fixing stability of the cover plate.

The foldable storage box provided in this embodiment has the following beneficial effects. The box back plate 2 and the box frame plate 3 are respectively hinged to the box bottom plate 1 via the front rotating portion 5 and the back rotating portion 6 having a height difference. The box side plates 4 are detachably connected to the box bottom plate 1, the box back plate 2, and the box frame plate 3. During folding, the box side plates 4 are embedded into the first connecting portion 21 on the back side face of the box back plate 2 via the second connecting portion 41, such that the second connecting portion 41 overlaps with the first connecting portion 21, thereby effectively reducing the overall thickness after folding, minimizing the space occupied during storage or transportation when not in use, and significantly lowering transportation costs.

Embodiment 2

The present disclosure further provides a foldable storage box, which may be unfolded for storing articles in use and folded into a plate-shaped structure when not in use, facilitating storage and transportation. The foldable storage box includes a box bottom plate 1, a box back plate 2, a box frame plate 3, and box side plates 4. A front side of the box bottom plate 1 is hinged to a bottom end of the box frame plate 3 via a front rotating portion 5, and a back side of the box bottom plate 1 is hinged to a bottom end of the box back plate 2 via a back rotating portion 6. The front rotating portion 5 and the back rotating portion 6 have a same height, and a sum of heights of the box back plate 2 and the box frame plate 3 is less than or equal to a width of the box bottom plate 1. The box side plates 4 are detachably arranged on left and right ends of the box bottom plate 1, respectively. Two sides of the box side plate 4 are detachably connected to inner sides of the box back plate 2 and the box frame plate 3, respectively. A sum of lengths of the two box side plates 4 is equal to a length of the box bottom plate 1. A first connecting portion 21 is arranged on a back side face of the box back plate 2 along a length direction thereof, and a second connecting portion 41 is arranged on an inner side face of the box side plate 4. During folding, the second connecting portion 41 is in connected fit with the first connecting portion 21. Only two hinge points having the same height (i.e., only one layer of hinge points) are required. After folding, the box bottom plate 1, the box back plate 2, the box frame plate 3, and the box side plates 4 are stacked in two and a half layers in sequence, to achieve a smaller overall thickness after folding. During folding, the two box side plates 4 are first pulled upward to disconnect from the box bottom plate 1, the box back plate 2, and the box frame plate 3. Next, both the box back plate 2 and the box frame plate 3 are rotated and folded inward along the back rotating portion 6 and the front rotating portion 5 to keep horizontal with the box bottom plate 1. Then, the second connecting portions 41 on the two box side plates 4 are connected to two ends of the first connecting portion 21 on the back side face of the box back plate 2, and keep horizontal, to form a plate-shaped structure.

The foldable storage box provided in this embodiment has the following beneficial effects. The box back plate 2 and the box frame plate 3 are respectively hinged to the box bottom plate 1 via the front rotating portion 5 and the back rotating portion 6 having the same height. The box side plates 4 are detachably connected to the box bottom plate 1, the box back plate 2, and the box frame plate 3. During folding, the box side plates 4 are embedded into the first connecting portion 21 on the back side face of the box back plate 2 via the second connecting portion 41, such that the second connecting portion 41 overlaps with the first connecting portion 21, thereby effectively reducing the overall thickness after folding, minimizing the space occupied during storage or transportation when not in use, and significantly lowering transportation costs.

The foregoing implementations of the present disclosure do not limit the scope of protection of the present disclosure. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present disclosure shall all be included in the scope of protection of the claims of the present disclosure.