RESIZABLE STORAGE BOX

Abstract

A resizable storage box includes a box body with an accommodating space formed by a side wall and at least one bottom plate that are connected, where the side wall includes four bidirectional retractable plate assemblies. Each of the bidirectional retractable plate assemblies includes a first lateral corrugated plate and a second lateral corrugated plate that are in a slidable sleeve connection. Sliding directions of the first lateral corrugated plate and the second lateral corrugated plate are perpendicular to respective retraction and extension directions thereof.

Description

CROSS REFERENCE TO THE RELATED APPLICATIONS

This application is based upon and claims priority to Chinese Patent Application No. 202222292669.5, filed on Aug. 30, 2022, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

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

BACKGROUND

Traditional storage boxes used for logistics packaging are mass-produced according to fixed specifications. However, the actual size of items that the general public needs to store is not fixed, so there is often a mismatch between the storage box and the items. This hinders the smooth packaging and safe transportation of the items, and causes a significant unnecessary waste of box materials.

SUMMARY

The present disclosure provides a storage box that can freely adjust its size in three directions. When the storage box is not needed for storing an item, it is folded to save storage space. When the storage box is needed for storing an item, it is unfolded, and its size can freely adjusted in three directions according to the size of the item, making it flexible and convenient to use.

The present disclosure adopts the following technical solution. A resizable storage box includes a box body with an accommodating space formed by a side wall (1) and at least one bottom plate (3) that are connected, where the side wall includes four bidirectional retractable plate assemblies (1-1); and each of the bidirectional retractable plate assemblies (1-1) includes a first lateral corrugated plate (1-11) and a second lateral corrugated plate (1-12) that are in a slidable sleeve connection; and sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) are perpendicular to respective retraction and extension directions thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure is further described below with reference to the embodiments.

FIG. 1 is a structural diagram of a resizable storage box in a non-retracted state according to Embodiment 1 of the present disclosure;

FIG. 2 is a structural diagram of a bottom of the resizable storage box in a non-retracted state according to Embodiment 1 of the present disclosure;

FIG. 3 is a structural diagram of the bottom of the resizable storage box in a retracted state according to Embodiment 1 of the present disclosure;

FIG. 4 is a partial sectional view of a bidirectional retractable plate assembly according to Embodiment 1 of the present disclosure;

FIG. 5 is a structural diagram of a resizable storage box in a non-retracted state according to Embodiment 2 of the present disclosure;

FIG. 6 is a structural diagram of a bottom of the resizable storage box in a retracted state according to Embodiment 2 of the present disclosure;

FIG. 7 is a structural diagram of a resizable storage box in a non-retracted state according to Embodiment 3 of the present disclosure;

FIG. 8 is a structural diagram of a bottom of a resizable storage box in a non-retracted state according to Embodiment 4 of the present disclosure;

FIG. 9 is a structural diagram of a bottom of a resizable storage box in a non-retracted state according to Embodiment 5 of the present disclosure;

FIG. 10 is a structural diagram of a bottom of a resizable storage box in a non-retracted state according to Embodiment 6 of the present disclosure;

FIG. 11 is a structural diagram of a bottom of a resizable storage box in a non-retracted state according to Embodiment 7 of the present disclosure;

FIG. 12 is a structural diagram of a bottom of a resizable storage box in a non-retracted state according to Embodiment 8 of the present disclosure;

FIG. 13 is a structural diagram of a bottom of a resizable storage box in a non-retracted state according to Embodiment 9 of the present disclosure;

FIG. 14 is a structural diagram of a bottom of a resizable storage box in a non-retracted state according to Embodiment 10 of the present disclosure;

FIG. 15 is a first structural diagram of a first folding method according to Embodiment 3 of the present disclosure;

FIG. 16 is a second structural diagram of the first folding method according to Embodiment 3 of the present disclosure;

FIG. 17 is a third structural diagram of the first folding method according to Embodiment 3 of the present disclosure;

FIG. 18 is a first structural diagram of a second folding method according to Embodiment 3 of the present disclosure;

FIG. 19 is a first structural diagram of a third folding method according to Embodiment 3 of the present disclosure;

FIG. 20 is a second structural diagram of the third folding method according to Embodiment 3 of the present disclosure;

FIG. 21 is a third structural diagram of the third folding method according to Embodiment 3 of the present disclosure;

FIG. 22 is a fourth structural diagram of the third folding method according to Embodiment 3 of the present disclosure;

FIG. 23 is a first structural diagram of a fourth folding method according to Embodiment 3 of the present disclosure;

FIG. 24 is a second structural diagram of the fourth folding method according to Embodiment 3 of the present disclosure;

FIG. 25 is a third structural diagram of the fourth folding method according to Embodiment 3 of the present disclosure;

FIG. 26 is a fourth structural diagram of the fourth folding method according to Embodiment 3 of the present disclosure;

FIG. 27 is a front view of a hinge assembly according to Embodiment 3 of the present disclosure;

FIG. 28 is a bottom view of the hinge assembly according to Embodiment 3 of the present disclosure;

FIG. 29 is a first structural diagram of the hinge assembly according to Embodiment 3 of the present disclosure;

FIG. 30 is a second structural diagram of the hinge assembly according to Embodiment 3 of the present disclosure;

FIG. 31 is a third structural diagram of the hinge assembly according to Embodiment 3 of the present disclosure;

FIG. 32 is a first structural diagram of a second hinge assembly according to the present disclosure;

FIG. 33 is a second structural diagram of the second hinge assembly according to the present disclosure;

FIG. 34 is a structural diagram of a third hinge assembly according to the present disclosure; and

FIG. 35 is an exploded view of the third hinge assembly according to the present disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present disclosure is described in detail below with reference to the drawings and specific embodiments.

Embodiment 1

Referring to FIGS. 1 to 4, this embodiment provides a resizable storage box. The storage box includes a box body with an accommodating space formed by side wall (1) and bottom plate (3) that are connected. The side wall includes four bidirectional retractable plate assemblies (1-1). Each of the bidirectional retractable plate assemblies (1-1) includes first lateral corrugated plate (1-11) and second lateral corrugated plate (1-12) that are in a slidable sleeve connection. Sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) are perpendicular to respective retraction and extension directions thereof.

The bottom plate (3) includes bottom four-directional retractable assembly (3-1). The bottom four-directional retractable assembly (3-1) includes first bottom corrugated plate (3-11) and second bottom corrugated plate (3-12) that are in a slidable sleeve connection. Sliding directions of the first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12) are perpendicular to respective retraction and extension directions thereof.

As shown in FIG. 4, in order to prevent the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) from being detached during a sliding process, anti-detachment track (1-2) is provided between the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) to prevent the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) from slipping off. The anti-detachment track (1-2) is a T-shaped track. Of course, in other embodiments, the anti-detachment track can also be a dovetail-shaped track or other track with an anti-detachment function. An extension direction of the anti-detachment track (1-2) is perpendicular to the retraction and extension directions of a single corrugated plate.

Embodiment 2

Referring to FIGS. 5 and 6, this embodiment provides a resizable storage box. The storage box includes a box body with an accommodating space formed by side wall (1) and bottom plate (3) that are connected. The side wall includes four bidirectional retractable plate assemblies (1-1). Each of the bidirectional retractable plate assemblies (1-1) includes first lateral corrugated plate (1-11) and second lateral corrugated plate (1-12) that are in a slidable sleeve connection. Sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) are perpendicular to respective retraction and extension directions thereof.

Each of the four bidirectional retractable plate assemblies (1-1) further includes first lateral retractable plate (1-21) and second lateral retractable plate (1-22) that are in a slidable sleeve connection. The first lateral retractable plate (1-21) and the second lateral retractable plate (1-22) are respectively connected to the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) at a same side. Sliding directions of the first lateral retractable plate (1-21) and the second lateral retractable plate (1-22) are identical to sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12).

The bottom plate (3) includes bottom four-directional retractable assembly (3-1). The bottom four-directional retractable assembly (3-1) includes first bottom corrugated plate (3-11) and second bottom corrugated plate (3-12) that are in a slidable sleeve connection. Sliding directions of the first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12) are perpendicular to respective retraction and extension directions thereof.

The bottom plate (3) further includes first bottom retractable plate (3-21) and second bottom retractable plate (3-22) that are in a slidable sleeve connection, and third bottom retractable plate (3-23) and fourth bottom retractable plate (3-24) that are in a slidable sleeve connection. The first bottom retractable plate (3-21) and the second bottom retractable plate (3-22) are respectively connected to the first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12) at an upper side. The third bottom retractable plate (3-23) and the fourth bottom retractable plate (3-24) are respectively connected to the first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12) at a lower side. Sliding directions of the first bottom retractable plate (3-21) and the second bottom retractable plate (3-22) and sliding directions of the third bottom retractable plate (3-23) and the fourth bottom retractable plate (3-24) are identical to the sliding directions of the first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12).

Embodiment 3

Referring to FIG. 7, this embodiment provides a resizable storage box. The storage box includes a box body with an accommodating space formed by side wall (1) and bottom plate (3) that are connected. The side wall includes four bidirectional retractable plate assemblies (1-1). Each of the bidirectional retractable plate assemblies (1-1) includes first lateral corrugated plate (1-11) and second lateral corrugated plate (1-12) that are in a slidable sleeve connection. Sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) are perpendicular to respective retraction and extension directions thereof.

Each of the four bidirectional retractable plate assemblies (1-1) further includes first lateral retractable plate (1-21) and second lateral retractable plate (1-22) that are in a slidable sleeve connection, and third lateral retractable plate (1-23) and fourth lateral retractable plate (1-24) that are in a slidable sleeve connection. The first lateral retractable plate (1-21) and the second lateral retractable plate (1-22) are respectively connected to the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) at an upper side. The third lateral retractable plate (1-23) and the fourth lateral retractable plate (1-24) are respectively connected to the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) at a lower side. Sliding directions of the first lateral retractable plate (1-21) and the second lateral retractable plate (1-22) and sliding directions of the third lateral retractable plate (1-23) and the fourth lateral retractable plate (1-24) are identical to the sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12).

Embodiment 4

Referring to FIG. 8, this embodiment provides a resizable storage box. The storage box includes a box body with an accommodating space formed by side wall (1) and bottom plate (3) that are connected. The side wall includes four bidirectional retractable plate assemblies (1-1). Each of the bidirectional retractable plate assemblies (1-1) includes first lateral corrugated plate (1-11) and second lateral corrugated plate (1-12) that are in a slidable sleeve connection. Sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) are perpendicular to respective retraction and extension directions thereof.

Each of the four bidirectional retractable plate assemblies (1-1) further includes combined retractable edge plates (2-1) respectively located at two straight sides of the four-directional retractable assembly (1-1). Each of the combined retractable edge plates (2-1) includes first fixed edge plate (2-11) connected to the first lateral corrugated plate (1-11), second fixed edge plate (2-12) connected to the second lateral corrugated plate (1-12), and corrugated edge plate (2-13) provided between the first fixed edge plate (2-11) and the second fixed edge plate (2-12).

The two straight sides of the first lateral corrugated plate (1-11) are respectively connected to corresponding first fixed edge plates (2-11). Two straight sides of the second lateral corrugated plate (1-12) are respectively connected to corresponding second fixed edge plates (2-12). The first side corrugated plate (1-11) and the second side corrugated plate (1-12) are not in contact with the corrugated edge plates (2-13) at the two sides.

Retraction and extension directions of the corrugated edge plate (2-13) are perpendicular to the sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12).

The structure of the bottom plate (3) is the same as that of the bottom plate in Embodiment 1. The bottom plate includes bottom four-directional retractable assembly (3-1). The bottom four-directional retractable assembly (3-1) includes first bottom corrugated plate (3-11) and second bottom corrugated plate (3-12) that are in a slidable sleeve connection. Sliding directions of the first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12) are perpendicular to respective retraction and extension directions thereof.

Embodiment 5

Referring to FIG. 9, this embodiment provides a resizable storage box. The storage box includes a box body with an accommodating space formed by side wall (1) and bottom plate (3) that are connected. The side wall includes four bidirectional retractable plate assemblies (1-1). Each of the bidirectional retractable plate assemblies (1-1) includes first lateral corrugated plate (1-11) and second lateral corrugated plate (1-12) that are in a slidable sleeve connection. Sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) are perpendicular to respective retraction and extension directions thereof.

The bottom plate (3) includes bottom four-directional retractable assembly (3-1). The bottom four-directional retractable assembly (3-1) includes first bottom corrugated plate (3-11) and second bottom corrugated plate (3-12) that are in a slidable sleeve connection. Sliding directions of the first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12) are perpendicular to respective retraction and extension directions thereof. The bottom plate (3) further includes combined retractable edge plates (3-31) respectively located at two straight sides of the bottom four-directional retractable assembly (3-1). Each of the combined retractable edge plates (3-31) includes first bottom fixed edge plate (3-311) connected to the first bottom corrugated plate (3-11), second bottom fixed edge plate (3-312) connected to the second bottom corrugated plate (3-12), and bottom corrugated edge plate (3-313) provided between the first bottom fixed edge plate (3-311) and the second bottom fixed edge plate (3-312). Two straight sides of the first bottom corrugated plate (3-11) are respectively connected to corresponding first bottom fixed edge plates (3-311). Two straight sides of the second bottom corrugated plate (3-12) are respectively connected to corresponding second bottom fixed edge plates (3-312). The first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12) are not in contact with the bottom corrugated edge plates (3-313) at the two sides. The retraction and extension directions of the bottom corrugated edge plate (3-313) are perpendicular to the sliding directions of the first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12).

Embodiment 6

Referring to FIG. 10, this embodiment provides a resizable storage box. The storage box includes a box body with an accommodating space formed by side wall (1) and bottom plate (3) that are connected. The side wall includes four bidirectional retractable plate assemblies (1-1). Each of the bidirectional retractable plate assemblies (1-1) includes first lateral corrugated plate (1-11) and second lateral corrugated plate (1-12) that are in a slidable sleeve connection. Sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) are perpendicular to respective retraction and extension directions thereof.

The bottom plate (3) includes bottom four-directional retractable assembly (3-1) composed of two bottom retractable plate assemblies (3-41) that are in a slidable sleeve connection. The bottom four-directional retractable assembly (3-1) includes first bottom flat plate (3-411) and second bottom flat plate (3-412) that are in a slidable sleeve connection.

Embodiment 7

Referring to FIG. 11, this embodiment provides a resizable storage box. The storage box includes a box body with an accommodating space formed by side wall (1) and bottom plate (3) that are connected. The side wall includes four bidirectional retractable plate assemblies (1-1). Each of the bidirectional retractable plate assemblies (1-1) includes first lateral corrugated plate (1-11) and second lateral corrugated plate (1-12) that are in a slidable sleeve connection. Sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) are perpendicular to respective retraction and extension directions thereof. Each of the four bidirectional retractable plate assemblies (1-1) further includes first lateral retractable plate (1-21) and second lateral retractable plate (1-22) that are in a slidable sleeve connection. The first lateral retractable plate (1-21) and the second lateral retractable plate (1-22) are respectively connected to the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) at a same side. Sliding directions of the first lateral retractable plate (1-21) and the second lateral retractable plate (1-22) are identical to sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12).

The bottom plate (3) includes bottom four-directional retractable assembly (3-1). The bottom four-directional retractable assembly (3-1) includes first bottom corrugated plate (3-11) and second bottom corrugated plate (3-12) that are in a slidable sleeve connection. Sliding directions of the first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12) are perpendicular to respective retraction and extension directions thereof. The bottom plate (3) further includes first bottom retractable plate (3-21) and second bottom retractable plate (3-22) that are in a slidable sleeve connection. The first bottom retractable plate (3-21) and the second bottom retractable plate (3-22) are respectively connected to the first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12) at a same side. Sliding directions of the first bottom retractable plate (3-21) and the second bottom retractable plate (3-22) are identical to the sliding directions of the first bottom corrugated plate (3-11) and the second bottom corrugated plate (3-12).

Embodiment 8

Referring to FIG. 12, this embodiment provides a resizable storage box. The storage box includes a box body with an accommodating space formed by side wall (1) and bottom plate (3) that are connected. The side wall includes four bidirectional retractable plate assemblies (1-1). Each of the bidirectional retractable plate assemblies (1-1) includes first lateral corrugated plate (1-11) and second lateral corrugated plate (1-12) that are in a slidable sleeve connection. Sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) are perpendicular to respective retraction and extension directions thereof.

The bottom plate (3) is made of an ordinary rectangular bottom plate. Before use, the side wall (1) is first adjusted to a required size according to a size of an item to be stored. Then, the bottom plate (3) is adjusted to a required size, and is fixed to the side wall (1) for packaging.

In addition, in each of the above embodiments, the resizable storage box includes a box body with an accommodating space formed by the side wall (1) and the bottom plate (3) that are connected, and the side wall includes four bidirectional retractable plate assemblies (1-1). On this basis, in order to facilitate packaging and transportation, the box body can further be provided with an upper cover with a same structure as the bottom plate (3) in the above embodiments. Thus, after the upper cover is closed, the resizable storage box has a closed box space, further expanding the usage scenarios and purposes of the present disclosure.

Embodiment 9

Referring to FIG. 13, this embodiment provides a resizable storage box. The storage box includes a box body with an accommodating space formed by side wall (1) and bottom plate (3) that are connected. The side wall includes four bidirectional retractable plate assemblies (1-1). Each of the bidirectional retractable plate assemblies (1-1) includes first lateral corrugated plate (1-11) and second lateral corrugated plate (1-12) that are in a slidable sleeve connection. Sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) are perpendicular to respective retraction and extension directions thereof. Each of the four bidirectional retractable plate assemblies (1-1) further includes first lateral retractable plate (1-21) and second lateral retractable plate (1-22) that are in a slidable sleeve connection. The first lateral retractable plate (1-21) and the second lateral retractable plate (1-22) are respectively connected to the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) at a same side. Sliding directions of the first lateral retractable plate (1-21) and the second lateral retractable plate (1-22) are identical to sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12).

The bottom plate (3) includes bottom four-directional retractable assembly (3-1). The bottom four-directional retractable assembly (3-1) includes four bottom base plates (3-51) that have a folded state or an unfolded state. Each of the bottom base plates (3-51) is connected to a bottom of a lateral retractable assembly located at a corresponding position. In the folded state, the four bottom base plates (3-51) are slidable relative to the retraction and extension of the side retractable assemblies, thereby correspondingly changing an area and size of the bottom plate (3) in the folded state.

Embodiment 10

Referring to FIG. 14, this embodiment provides a resizable storage box. The storage box includes a box body with an accommodating space formed by side wall (1) and bottom plate (3) that are connected. The side wall includes four bidirectional retractable plate assemblies (1-1). Each of the bidirectional retractable plate assemblies (1-1) includes first lateral corrugated plate (1-11) and second lateral corrugated plate (1-12) that are in a slidable sleeve connection. Sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) are perpendicular to respective retraction and extension directions thereof. Each of the four bidirectional retractable plate assemblies (1-1) further includes first lateral retractable plate (1-21) and second lateral retractable plate (1-22) that are in a slidable sleeve connection. The first lateral retractable plate (1-21) and the second lateral retractable plate (1-22) are respectively connected to the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) at a same side. Sliding directions of the first lateral retractable plate (1-21) and the second lateral retractable plate (1-22) are identical to sliding directions of the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12).

The bottom plate (3) includes bottom four-directional retractable assembly (3-1). The bottom four-directional retractable assembly (3-1) includes a hollow structure surrounded by four side frames (3-61) connected end to end. A plurality of sliding rods (3-62) are provided at a hollow position to form an enclosure and are slidable relative to the side frames (3-61). When the sliding rods (3-62) are slid, a spacing between two adjacent sliding rods (3-62) is adjustable to adapt to items of different sizes. Each of the side frames (3-61) at least includes first side frame member (3-611) and second side frame member (3-612) that are in a slidable connection. The first side frame member (3-611) and the second side frame member (3-612) are slidable relative to each other in a length direction to make the side frame (3-61) resizable. Each of the sliding rods (3-62) at least includes first rod member (3-621) and second rod member (3-622) that are in a slidable connection. The first rod member (3-621) and the second rod member (3-622) are slidable relative to each other in a length direction to adapt to a change in the side frame (3-61).

Embodiments 1 to 10 make reasonable use of the retraction and extension characteristic of the corrugated plate to achieve retraction and extension in one direction. The present disclosure has the following two advantages. (1) The present disclosure utilizes the bidirectional retractable plate assembly formed by at least two corrugated plates that are in a slidable sleeve connection. The sliding directions of the corrugated plates in the slidable sleeve connection are perpendicular to the respective retraction and extension directions thereof, achieving free retraction and extension of a single plane in two directions without interference. In addition, the retraction and extension of in the two directions can be independently controlled, and through this basic structure, the area of a specific plane (i.e. the side wall or bottom plate) of the box body can be arbitrarily changed. (2) The present disclosure can adopt a plurality of four-directional retractable assemblies to form a box body. The box body can independently and freely retracted and extended in three directions, changing the volume of the box body within a certain range to adapt to items of different sizes. In this way, the items can be tightly packaged, protecting the items and saving space for easy handling.

In addition, the storage box of the present disclosure is further provided with various folding structures. The box body can be folded for storage in idle times to reduce the volume of the box body and save space. Specific embodiments of the folding structures are as follows.

Embodiment 11

FIGS. 15 to 17 show an embodiment of a first folding method of the resizable storage box described in Embodiment 3. A side edge of the bottom plate (3) is hinged to a lower part of one of the four bidirectional retractable plate assemblies (1-1). The four bidirectional retractable plate assemblies (1-1) form two folding assemblies (3-1-1), where each of the two folding assemblies (3-1-1) is formed by two adjacent bidirectional retractable plate assemblies (1-1). The two folding assemblies (3-1-1) are hinged to each other. The two bidirectional retractable plate assemblies (1-1) of each of the folding assemblies (3-1-1) are hinged to each other. Through the above structure, single sided folding is achieved.

Embodiment 12

FIG. 18 shows an embodiment of a second folding method of the resizable storage box described in Embodiment 3. The bottom plate (3) is a two-piece bottom plate. Two opposite side edges of the bottom plate (3) are hinged to lower parts of two opposite bidirectional retractable plate assemblies (1-1). The four bidirectional retractable plate assemblies (1-1) form two folding assemblies (3-1-1), where each of the two folding assemblies (3-1-1) is formed by two adjacent bidirectional retractable plate assemblies (1-1). The two folding assemblies (3-1-1) are hinged to each other. The two bidirectional retractable plate assemblies (1-1) of each of the folding assemblies (3-1-1) are hinged to each other. The bottom plate (3) is a two-piece bottom plate. Two opposite side edges of the bottom plate (3) are hinged to lower parts of two opposite bidirectional retractable plate assemblies (1-1). The four bidirectional retractable plate assemblies (1-1) form two folding assemblies (3-1-1), where each of the two folding assemblies (3-1-1) is formed by two adjacent bidirectional retractable plate assemblies (1-1). The two folding assemblies (3-1-1) are hinged to each other. The two bidirectional retractable plate assemblies (1-1) of each of the folding assemblies (3-1-1) are hinged to each other. Through the above structure, two-sided folding is achieved.

Embodiment 13

FIGS. 19 to 22 show an embodiment of a third folding method of the resizable storage box described in Embodiment 3. Among the four bidirectional retractable plate assemblies (1-1), two opposite bidirectional retractable plate assemblies (1-1) form flipping assembly (3-2-1), and the other two opposite bidirectional retractable plate assemblies (1-1) form infolding assembly (3-2-2). The flipping assembly (3-2-1) further includes flipping beams (3-211) provided above the bidirectional retractable plate assemblies (1-1). Upper parts of the bidirectional retractable plate assemblies (1-1) are rotatably connected to the flipping beams (3-211). Two ends of the flipping beam (3-211) are respectively fixedly connected to the bidirectional retractable plate assemblies (1-1) of the corresponding infolding assembly (3-2-2) at two sides. Each of the bidirectional retractable plate assemblies (1-1) of the folding assembly (3-22) includes upper infolding sub-assembly (3-221) and lower infolding sub-assembly (3-222) that are hinged to each other. A lower part of the lower infolding sub-assembly (3-222) is hinged to a bottom retractable assembly. Through the above structure, symmetrical folding is achieved.

Embodiment 14

FIGS. 23 to 26 show an embodiment of a fourth folding method of the resizable storage box described in Embodiment 3. Among the four bidirectional retractable plate assemblies (1-1), two opposite bidirectional retractable plate assemblies (1-1) form first folding assembly (3-3-1), and the other two opposite bidirectional retractable plate assemblies (1-1) form second folding assembly (3-3-2). Lower parts of the bidirectional retractable plate assemblies (1-1) of the first folding assembly (3-3-1) are hinged to the bottom plate (3). The second folding assembly (3-3-2) further includes two vertically folding avoidance plates (3-321) respectively provided below the two bidirectional retractable plate assemblies (1-1) to avoid a thickness of the bidirectional retractable plate assemblies (1-1) of the first folding assembly (3-3-1) after the first folding assembly is folded. Each of the vertically folding avoidance plates (3-321) includes a lower part fixedly connected to the bottom plate (3) and an upper part correspondingly hinged to the lower part of the bidirectional retractable plate assembly (1-1). Through the above structure, four-sided folding is achieved.

In addition, in the present disclosure, the four-directional retractable assemblies of the storage box can be connected through a hinged, magnetic suction, or buckle means for easy disassembly and mounting. The storage box of the present disclosure is very suitable for mass-production and use in industrial production processes, and can be widely applied in fields that require storage boxes for circulation, with high commercial value. The specific embodiments of a hinge assembly are as follows.

Embodiment 15

As shown in FIGS. 27 to 31, this embodiment relates to a special hinge assembly for the resizable storage box described in Embodiment 3. The difference between this embodiment and Embodiment 3 is as follows. In order to ensure the flipping stability between each side wall of the storage box and between each side wall and the bottom plate, hinge assembly (4) is provided between the lower part of each of the two bidirectional retractable plate assemblies (1-1) of the first folding assembly (3-3-1) and the bottom plate (3). Hinge assembly (4) is further provided between the lower part of each of the two bidirectional retractable plate assemblies (1-1) of the second folding assembly (3-3-2) and the upper part of the vertically folding avoidance plate (3-321).

The hinge assembly (4) includes first outer rotating plate (4-1), second outer rotating plate (4-2), arc-shaped elastic connector (4-3), first inner rotating plate (4-4), second inner rotating plate (4-5), and hinge (4-6).

The first outer rotating plate (4-1) and the second outer rotating plate (4-2) are fixedly connected through the arc-shaped elastic connector (4-3). Alternatively, the first outer rotating plate, the second outer rotating plate and the arc-shaped elastic connector are connected to form an integrated structure. The first inner rotating plate (4-4) and the second inner rotating plate (4-5) are hinged to each other through the hinge (4-6).

The first inner rotating plate (4-4) is correspondingly provided at an inner side of the first outer rotating plate (4-1). Between the first inner rotating plate (4-4) and the first outer rotating plate (4-1), one side adjacent to the arc-shaped elastic connector (4-3) is provided with first slide rail (4-61), and the other side is provided with first slider (4-62) that is in a sliding fit with the first slide rail (4-61). Sliding directions of the first inner rotating plate (4-4) and the first outer rotating plate (4-1) are perpendicular to a rotation direction of the first inner rotating plate (4-4) and the second inner rotating plate (4-5).

The second inner rotating plate (4-5) is correspondingly provided at an inner side of the second outer rotating plate (4-2). Between the second inner rotating plate (4-5) and the second outer rotating plate (4-2), one side adjacent to the arc-shaped elastic connector (4-3) is provided with second slide rail (4-71), and the other side is provided with second slider (4-72) that is in a sliding fit with the second slide rail (4-71). Sliding directions of the second inner rotating plate (4-5) and the second outer rotating plate (4-2) are perpendicular to the rotation direction of the first inner rotating plate (4-4) and the second inner rotating plate (4-5).

In this embodiment, the first outer rotating plate (4-1) can be fixedly provided on the first lateral corrugated plate (1-11) of the bidirectional retractable plate assembly (1-1). Alternatively, the first outer rotating plate (4-1) and the first lateral corrugated plate (1-11) can also be formed into an integrated structure. Alternatively, the first lateral corrugated plate (1-11) directly serves as the first outer rotating plate (4-1). Similarly, the second outer rotating plate (4-2) can be fixedly provided on the bottom plate (3) or the vertically folding avoidance plate (3-321). Alternatively, the second outer rotating plate (4-2) and the bottom plate (3) or the vertically folding avoidance plate (3-321) can also be formed into an integrated structure. Alternatively, the bottom plate (3) or the vertically folding avoidance plate (3-321) directly serves as the second outer rotating plate (4-2).

Meanwhile, the first slide rail (4-61) and the second slide rail (4-71) can be independently provided between the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12) of the bidirectional retractable plate assembly (1-1). Alternatively, they can directly serve as a sliding structure between the first lateral corrugated plate (1-11) and the second lateral corrugated plate (1-12).

Embodiment 16

As shown in FIGS. 32 and 33, this embodiment is another embodiment of the hinge assembly described in the present disclosure. The hinge assembly in this embodiment and the hinge assembly in the previous embodiment differ as follows. The mounting position of the hinge (4-6) between the first inner rotating plate (4-4) and the second inner rotating plate (4-5) is different. In this embodiment, the hinge is provided on the other side of the first inner rotating plate (4-4) and the second inner rotating plate (4-5). The remaining structure is the same as the previous embodiment.

Meanwhile, the various structures of the bidirectional retractable plate assemblies (1-1) described in the above embodiments of the present disclosure can also be taken as various side plates or bottom plates at will. This is also a technical solution protected by the present disclosure, and will not be repeated herein.

In the present disclosure, the advantages of the hinge assembly (4) are as follows. The first slide rail (4-61) and the first slider (4-62), as well as the second slide rail (4-71), and the second slider (4-72), form a sliding structure. In both folded and unfolded states, the first outer rotating plate (4-1) and the second outer rotating plate (4-2), as well as the first inner rotating plate (4-4) and the second inner rotating plate (4-5), can be freely slidably retracted and extended. The first slide rail (4-61) and the second slide rail (4-71) play a limiting role. The displacement that may occur during the folding process between the inner and outer plates is adjusted through the arc-shaped elastic connector (4-3) to ensure that their folding direction is always perpendicular to the sliding direction. The design greatly improves the stability of the folding structure between the side wall and the bottom plate, as well as between each side wall. In addition, the edge positions of the inner and outer plates between the side wall and the bottom plate, as well as between each side wall, can be aligned at any time without interference in the folded or unfolded state. Thus, each side wall and the bottom plate can be smoothly pushed and pulled to achieve retraction and extension in the folded or unfolded state. Meanwhile, in order to smoothly achieve the purpose of retraction and extension, when the edge positions of the inner and outer plates between each side wall and the bottom plate, as well as between each side wall, are hinged, the best connection method is to provide a hinge structure between the mutually close inner plates, as well as between the mutually close outer plates.

In the description of the present disclosure, the term “hinge” is only intended to describe the connection relationship between the components. Therefore, features defined by “hinge” can explicitly or implicitly include various implementations such as fold hinge, butt hinge, and link hinge.

Embodiment 17

As shown in FIGS. 34 and 35, this embodiment is another embodiment of the hinge assembly. The difference between this embodiment and Embodiment 15 is as follows. The hinge assembly (4) includes first outer rotating plate (4-1), second outer rotating plate (4-2), first hinge (4-3), first inner rotating plate (4-4), second inner rotating plate (4-5), and second hinge (4-6). The first outer rotating plate (4-1) and the second outer rotating plate (4-2) are hinged through the first hinge (4-3). The first inner rotating plate (4-4) and the second inner rotating plate (4-5) are hinged through the second hinge (4-6). The first inner rotating plate (4-4) is correspondingly provided at an inner side of the first outer rotating plate (4-1). The first inner rotating plate (4-4) is slidably connected to the first outer rotating plate (4-1) in a direction parallel to a central axis of the second hinge (4-6) through a slidable connecting device. The second inner rotating plate (4-5) is correspondingly provided at an inner side of the second outer rotating plate (4-2). The second inner rotating plate (4-5) is slidably connected to the second outer rotating plate (4-2) in a direction parallel to a central axis of the second hinge (4-6) through a slidable connecting device. A bottom of the first outer rotating plate (4-1) is provided with first limit element (4-1-1) protruding towards the first inner rotating plate (4-4). The first limit element (4-1-1) plays a limiting role on an end of the first inner rotating plate (4-4). A bottom of the second outer rotating plate (4-2) is provided with second limit element (4-2-1) protruding towards the second inner rotating plate (4-5). The second limit element (4-2-1) plays a limiting role on an end of the second inner rotating plate (4-5). The first hinge (4-3) is provided on the first limit element (4-1-1) and the second limit element (4-2-1). The first hinge (4-3) is coaxial with the second hinge (4-6). In this way, the hinge assembly (4) avoids interference with sliding during rotation.

Preferably, each of the first hinge (4-3) and the second hinge (4-6) is provided with a clamped rotating structure. The clamped rotating structure includes rotating shaft (4-3-1) and C-shaped sleeve (4-3-2). The rotating shaft (4-3-1) is clamped into the C-shaped sleeve (4-3-2) through a notch of the C-shaped sleeve (4-3-2). The rotating shaft (4-3-1) is rotatable relative to the C-shaped sleeve (4-3-2). The clamped rotating structure is convenient to mount. The sliding connection device can be a combination structure of a sliding groove and a slider, etc. Compared with Embodiments 15 and 16, this embodiment has at least the following advantages. This embodiment is more convenient to manufacture and has better flexibility and stability.

In addition, it should be noted that the corresponding drawings of the corrugated plates described in the embodiment show a structure with a wave-shaped cross-section. It is easy for those skilled in the art to conceive that a solution of modifying the wave shape into to a square shape, a V shape, a trapezoidal shape, or a combination thereof should be included within the protection scope of the present disclosure. In addition, those skilled in the art should understand that the slidable sleeve structure of the corrugated plates requires appropriate damping such that two corrugated plates can slide relative to each other and maintain a certain friction force at a specific position to achieve locking effect, thereby maintaining a certain spatial shape and size of the box body.

Although the present disclosure is described above in detail according to the specific embodiments and alternatives thereof, it should be understood that various changes and modifications made without departing from the spirit and scope of the present disclosure can also be implemented. In the embodiments of the present application, unless otherwise clearly specified, the terms such as “connection” and “fixation” are intended to be understood in a broad sense. For example, the “connection” may be a fixed connection, removable connection or integral connection; may be a mechanical connection or electrical connection; may be a direct connection or indirect connection via a medium; and may be a communication or interaction between two elements. Those of ordinary skill in the art may understand specific meanings of the above terms in the present disclosure based on a specific situation. In addition, orientation or position relationships indicated by terms such as “upper” and “lower” are shown in the drawings. These terms are merely intended to facilitate and simplify the description, rather than to indicate or imply a specific orientation.

Therefore, it should be understood that the present disclosure is not subject to any limitations except for the claims and equivalents thereof.

Claims

1. A resizable storage box, comprising a box body with an accommodating space, wherein the box body is formed by a side wall and a bottom plate that are connected, and the side wall comprises four bidirectional retractable plate assemblies; each of the four bidirectional retractable plate assemblies comprises a first lateral corrugated plate and a second lateral corrugated plate that are in a slidable sleeve connection; and sliding directions of the first lateral corrugated plate and the second lateral corrugated plate are perpendicular to respective retraction and extension directions of the first lateral corrugated plate and the second lateral corrugated plate.

2. The resizable storage box according to claim 1, wherein each of the four bidirectional retractable plate assemblies further comprises a first lateral retractable plate and a second lateral retractable plate that are in the slidable sleeve connection; the first lateral retractable plate and the second lateral retractable plate are respectively connected to the first lateral corrugated plate and the second lateral corrugated plate at a same side; and sliding directions of the first lateral retractable plate and the second lateral retractable plate are identical to the sliding directions of the first lateral corrugated plate and the second lateral corrugated plate.

3. The resizable storage box according to claim 1, wherein each of the four bidirectional retractable plate assemblies further comprises a first lateral retractable plate and a second lateral retractable plate that are in the slidable sleeve connection, and a third lateral retractable plate and a fourth lateral retractable plate that are in the slidable sleeve connection; the first lateral retractable plate and the second lateral retractable plate are respectively connected to the first lateral corrugated plate and the second lateral corrugated plate at an upper side; the third lateral retractable plate and the fourth lateral retractable plate are respectively connected to the first lateral corrugated plate and the second lateral corrugated plate at a lower side; and sliding directions of the first lateral retractable plate and the second lateral retractable plate and sliding directions of the third lateral retractable plate and the fourth lateral retractable plate are identical to the sliding directions of the first lateral corrugated plate and the second lateral corrugated plate.

4. The resizable storage box according to claim 1, wherein each of the four bidirectional retractable plate assemblies further comprises combined retractable edge plates respectively located at two straight sides of the four-directional retractable assembly; each of the combined retractable edge plates comprises a first fixed edge plate connected to the first lateral corrugated plate, a second fixed edge plate connected to the second lateral corrugated plate, and a corrugated edge plate provided between the first fixed edge plate and the second fixed edge plate; and retraction and extension directions of the corrugated edge plate are perpendicular to the sliding directions of the first lateral corrugated plate and the second lateral corrugated plate.

5. The resizable storage box according to claim 1, wherein the bottom plate comprises a bottom four-directional retractable assembly; the bottom four-directional retractable assembly comprises a first bottom corrugated plate and a second bottom corrugated plate that are in the slidable sleeve connection; and sliding directions of the first bottom corrugated plate and the second bottom corrugated plate are perpendicular to respective retraction and extension directions of the first bottom corrugated plate and the second bottom corrugated plate.

6. The resizable storage box according to claim 5, wherein the bottom plate further comprises a first bottom retractable plate and a second bottom retractable plate that are in the slidable sleeve connection; the first bottom retractable plate and the second bottom retractable plate are respectively connected to the first bottom corrugated plate and the second bottom corrugated plate at a same side; and sliding directions of the first bottom retractable plate and the second bottom retractable plate are identical to the sliding directions of the first bottom corrugated plate and the second bottom corrugated plate.

7. The resizable storage box according to claim 5, wherein the bottom plate further comprises a first bottom retractable plate and a second bottom retractable plate that are in the slidable sleeve connection, and a third bottom retractable plate and a fourth bottom retractable plate that are in the slidable sleeve connection; the first bottom retractable plate and the second bottom retractable plate are respectively connected to the first bottom corrugated plate and the second bottom corrugated plate at an upper side; the third bottom retractable plate and the fourth bottom retractable plate are respectively connected to the first bottom corrugated plate and the second bottom corrugated plate at a lower side; and sliding directions of the first bottom retractable plate and the second bottom retractable plate and sliding directions of the third bottom retractable plate and the fourth bottom retractable plate are identical to the sliding directions of the first bottom corrugated plate and the second bottom corrugated plate.

8. The resizable storage box according to claim 5, wherein the bottom plate further comprises combined retractable edge plates respectively located at two straight sides of the bottom four-directional retractable assembly; each of the combined retractable edge plates comprises a first bottom fixed edge plate connected to the first bottom corrugated plate, a second bottom fixed edge plate connected to the second bottom corrugated plate, and a bottom corrugated edge plate provided between the first bottom fixed edge plate and the second bottom fixed edge plate; and retraction and extension directions of the bottom corrugated edge plate are perpendicular to the sliding directions of the first bottom corrugated plate and the second bottom corrugated plate.

9. The resizable storage box according to claim 1, wherein the bottom plate comprises two bottom retractable plate assemblies that are in the slidable sleeve connection; each of the two bottom retractable plate assemblies comprises a first bottom flat plate and a second bottom flat plate that are in the slidable sleeve connection; and slidable retraction and extension directions of the two bottom retractable plate assemblies are perpendicular to sliding directions of the first bottom flat plate and the second bottom flat plate.

10. The resizable storage box according to claim 1, wherein the bottom plate comprises a bottom four-directional retractable assembly; the bottom four-directional retractable assembly comprises four bottom base plates, wherein the four bottom base plates have a folded state or an unfolded state; and each of the four bottom base plates is connected to a bottom of a lateral retractable assembly located at a corresponding position.

11. The resizable storage box according to claim 1, wherein the bottom plate comprises a bottom four-directional retractable assembly; the bottom four-directional retractable assembly comprises a hollow structure surrounded by four side frames connected end to end; a plurality of sliding rods are provided at a hollow position to form an enclosure and are slidable relative to the four side frames; when the plurality of sliding rods are slid, a spacing between two adjacent sliding rods is adjustable; each of the four side frames comprises a first side frame member and a second side frame member that are in a slidable connection; the first side frame member and the second side frame member are slidable relative to each other in a length direction to make the side frame resizable; each of the plurality of sliding rods comprises a first rod member and a second rod member that are in a slidable connection; and the first rod member and the second rod member are slidable relative to each other in a length direction to adapt to a change in the side frame.

12. The resizable storage box according to claim 1, wherein a hinged, magnetic suction, or buckle structure is provided to form a connection between the four bidirectional retractable plate assemblies, as well as between each of the four bidirectional retractable plate assemblies and the bottom plate.

13. The resizable storage box according to claim 1, wherein an anti-detachment track is provided between the first lateral corrugated plate and the second lateral corrugated plate to prevent the first lateral corrugated plate and the second lateral corrugated plate from slipping off.

14. The resizable storage box according to claim 1, wherein a side edge of the bottom plate is hinged to a lower part of one of the four bidirectional retractable plate assemblies; alternatively, the bottom plate is a two-piece bottom plate; and two opposite side edges of the bottom plate are hinged to lower parts of two opposite bidirectional retractable plate assemblies; the four bidirectional retractable plate assemblies form two folding assemblies, wherein each of the two folding assemblies is formed by two adjacent bidirectional retractable plate assemblies; the two folding assemblies are hinged to each other; and the two bidirectional retractable plate assemblies of each of the two folding assemblies are hinged to each other.

15. The resizable storage box according to claim 1, wherein among the four bidirectional retractable plate assemblies, two opposite bidirectional retractable plate assemblies form a flipping assembly, and the other two opposite bidirectional retractable plate assemblies form an infolding assembly; the flipping assembly further comprises flipping beams provided above the bidirectional retractable plate assemblies; upper parts of the bidirectional retractable plate assemblies are rotatably connected to the flipping beams; two ends of each of the flipping beams are respectively fixedly connected to the bidirectional retractable plate assemblies of the corresponding infolding assembly at two sides; each of the bidirectional retractable plate assemblies of the folding assembly comprises an upper infolding sub-assembly and a lower infolding sub-assembly, wherein the upper infolding sub-assembly and the lower infolding sub-assembly are hinged to each other; and a lower part of the lower infolding sub-assembly is hinged to a bottom retractable assembly.

16. The resizable storage box according to claim 1, wherein among the four bidirectional retractable plate assemblies, two opposite bidirectional retractable plate assemblies form a first folding assembly, and the other two opposite bidirectional retractable plate assemblies form a second folding assembly; lower parts of the bidirectional retractable plate assemblies of the first folding assembly are hinged to the bottom plate; the second folding assembly further comprises two vertically folding avoidance plates, wherein the two vertically folding avoidance plates are respectively provided below the two bidirectional retractable plate assemblies to avoid a thickness of the bidirectional retractable plate assemblies of the first folding assembly after the first folding assembly is folded; and each of the two vertically folding avoidance plates comprises a lower part fixedly connected to the bottom plate and an upper part correspondingly hinged to the lower part of the bidirectional retractable plate assembly.

17. The resizable storage box according to claim 1, wherein a hinge assembly is provided between a lower part of the bidirectional retractable plate assembly and the bottom plate or between two adjacent bidirectional retractable plate assemblies; the hinge assembly comprises a first outer rotating plate, a second outer rotating plate, an arc-shaped elastic connector, a first inner rotating plate, a second inner rotating plate, and a hinge; the first outer rotating plate and the second outer rotating plate are fixedly connected through the arc-shaped elastic connector; alternatively, the first outer rotating plate, the second outer rotating plate, and the arc-shaped elastic connector are connected to form an integrated structure; the first inner rotating plate and the second inner rotating plate are hinged to each other through the hinge; the first inner rotating plate is correspondingly provided at an inner side of the first outer rotating plate; between the first inner rotating plate and the first outer rotating plate, one side adjacent to the arc-shaped elastic connector is provided with a first slide rail, and the other side is provided with a first slider, wherein the first slider is in a sliding fit with the first slide rail; sliding directions of the first inner rotating plate and the first outer rotating plate are perpendicular to a rotation direction of the first inner rotating plate and the second inner rotating plate; the second inner rotating plate is correspondingly provided at an inner side of the second outer rotating plate; between the second inner rotating plate and the second outer rotating plate, one side adjacent to the arc-shaped elastic connector is provided with a second slide rail, and the other side is provided with a second slider, wherein the second slider is in the sliding fit with the second slide rail; and sliding directions of the second inner rotating plate and the second outer rotating plate are perpendicular to the rotation direction of the first inner rotating plate and the second inner rotating plate.

18. The resizable storage box according to claim 17, wherein a vertically folding avoidance plate is provided at a position of the bottom plate connected to the lower part of the bidirectional retractable plate assembly or on any bidirectional retractable plate assembly of two adjacent bidirectional retractable plate assemblies; and the hinge assembly is provided between the bidirectional retractable plate assembly and the vertically folding avoidance plate.

19. The resizable storage box according to claim 18, wherein the first outer rotating plate is partially or completely formed by the first lateral corrugated plate of the bidirectional retractable plate assembly; alternatively, the first outer rotating plate and the first lateral corrugated plate are formed into a first integrated structure; the second outer rotating plate is partially or completely formed by the bottom plate or the vertically folding avoidance plate; and alternatively, the second outer rotating plate and the bottom plate or the vertically folding avoidance plate are formed into a second integrated structure.

20. The resizable storage box according to claim 1, wherein a hinge assembly is provided between a lower part of the bidirectional retractable plate assembly and the bottom plate or between two adjacent bidirectional retractable plate assemblies; the hinge assembly comprises a first outer rotating plate, a second outer rotating plate, a first hinge, a first inner rotating plate, a second inner rotating plate, and a second hinge; the first outer rotating plate and the second outer rotating plate are hinged through the first hinge; the first inner rotating plate and the second inner rotating plate are hinged through the second hinge; the first inner rotating plate is correspondingly provided at an inner side of the first outer rotating plate; the first inner rotating plate is slidably connected to the first outer rotating plate in a direction parallel to a central axis of the second hinge through a first slidable connecting device; the second inner rotating plate is correspondingly provided at an inner side of the second outer rotating plate; the second inner rotating plate is slidably connected to the second outer rotating plate in a direction parallel to a central axis of the second hinge through a second slidable connecting device; a bottom of the first outer rotating plate is provided with a first limit element protruding towards the first inner rotating plate; the first limit element plays a limiting role on an end of the first inner rotating plate; a bottom of the second outer rotating plate is provided with a second limit element protruding towards the second inner rotating plate; the second limit element plays a limiting role on an end of the second inner rotating plate; the first hinge is provided on the first limit element and the second limit element; and the first hinge is coaxial with the second hinge, such that the hinge assembly avoids interference with sliding during rotation.

21. The resizable storage box according to claim 20, wherein each of the first hinge and the second hinge is provided with a clamped rotating structure; the clamped rotating structure comprises a rotating shaft and a C-shaped sleeve; the rotating shaft is clamped into the C-shaped sleeve through a notch of the C-shaped sleeve; and the rotating shaft is rotatable relative to the C-shaped sleeve.