Folding storage box

Abstract

The utility model relates to a folding containing box which comprises a bottom plate, two first side plates and two second side plates, the bottom plate, the two first side plates and the two second side plates define a containing cavity, a plurality of insertion blocks are arranged at the bottoms of the first side plates and the bottoms of the second side plates, insertion protruding blocks are arranged at the two ends of the bottoms of the insertion blocks, a plurality of movable grooves are formed in the top of the bottom plate, and the movable grooves are arranged in the containing cavity. Two baffles are arranged on the side face of a groove opening of the movable groove, limiting blocks are arranged on the inner side faces of the baffles, movable spaces exist between the limiting blocks and the groove bottom of the movable groove and between the limiting blocks and the groove wall of the movable groove, and the inserting blocks and the inserting protruding blocks enter the movable groove, so that the inserting protruding blocks are located below the limiting blocks and can move and rotate up and down in the movable spaces. After the folding table is folded, the two first side plates, the two second side plates and the top plate are sequentially stacked on the bottom plate, the size of the folded table is greatly reduced, the space occupied by transportation and storage is reduced, and transportation and storage are facilitated; and the first side plate and the second side plate are prevented from being damaged due to extrusion during transportation.

Description

Technical Field

[0001] This utility model relates to a folding storage box, belonging to the technical field of storage products. Background Technology

[0002] Storage boxes are common household items used for storing toys, clothing, food, and miscellaneous items. However, storage boxes are generally quite large, taking up a lot of space during transportation and when not in use. Furthermore, during transportation, storage boxes are often stacked in multiples, making them susceptible to damage from compression during transit. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a foldable storage box that reduces the space occupied during transportation and storage.

[0004] To achieve this objective, the technical solution adopted by this utility model is:

[0005] A folding storage box includes a base plate, two first side plates, and two second side plates. The first and second side plates are located on the base plate, and the two second side plates are located on opposite sides of the first side plates. The base plate, the two first side plates, and the two second side plates together form a receiving cavity. The bottom of each of the first and second side plates is provided with several insertion blocks, and each insertion block has insertion protrusions at both ends of its bottom. The top of the base plate has several movable grooves, and the sides of the movable groove openings are provided with two baffles. The inner sides of the baffles are provided with limiting blocks. There is a space for movement between the limiting block and the bottom and wall of the movable groove. The insertion block and the insertion protrusion enter the movable groove, so that the insertion protrusion is located below the limiting block and can move up and down and rotate within the space. When folding is required, the two first side plates and the two second side plates rotate to a horizontal position and move up and down, so that the two first side plates and the two second side plates can be stacked on the base plate in sequence. The insertion block and the insertion protrusion rotate and move up and down synchronously within the space along with the first side plates and the second side plates.

[0006] As a further optimization of the above technical solution: the insertion protrusion includes a vertical side, a sloping side and an arc-shaped side, and also includes a horizontal positioning surface located between the vertical side and the sloping side. The top of the groove wall of the movable groove is provided with a guide slope. When the insertion protrusion is installed, the vertical side is set close to the receiving cavity, and the positioning surface is located below the limiting block.

[0007] As a further optimization of the above technical solution: the top of the base plate is provided with two first insertion parts and two second insertion parts protruding upwards. The height of the second insertion part is higher than the height of the first insertion part. The top of the second insertion part and the top of the first insertion part are provided with a plurality of movable grooves. The height of the movable groove on the second insertion part is higher than the height of the movable groove on the first insertion part. The first side plate is installed on the first insertion part, and the second side plate is installed on the second insertion part.

[0008] As a further optimization of the above technical solution: the height of the first side plate is greater than the width within the bottom plate, and both first side plates include an upper side plate and a lower side plate that are hinged to each other. The height of the upper side plate and the height of the lower side plate are both less than the width within the bottom plate, and the insertion block is located at the bottom of the lower side plate; the height of the second side plate is less than the length within the bottom plate.

[0009] As a further optimization of the above technical solution: the bottom of the upper side plate is provided with a plurality of first hinge shafts, the inner side of the lower side plate is provided with a plurality of first mounting blocks, the first mounting blocks are provided with first mounting slots, the two sides of the first mounting slots are provided with first hinge slots, the two sides of the opening of the first hinge slots converge inwards, and the first hinge shafts are engaged in the first hinge slots.

[0010] As a further optimization of the above technical solution: both ends of the first side plate are provided with a plurality of mounting protrusions, and both ends of the mounting protrusions are provided with positioning protrusions. The two sides of the second side plate are bent to form a mounting part, and a plurality of locking block groups are provided on the mounting part. The locking block groups include a first locking block and a second locking block. The first locking block is located above the second locking block. The end of the first locking block is provided with a downward protruding first stop, and the end of the second locking block is provided with an upward protruding second stop. Both the first stop and the second stop are provided with guide arc surfaces. A locking groove is formed between the first stop and the mounting part, and between the second stop and the mounting part. When the first side plate and the second side plate are installed, both ends of the mounting protrusions pass through the first stop and the second stop respectively and enter the locking groove. The two positioning protrusions are located on the sides of the first locking block and the second locking block respectively.

[0011] As a further optimization of the above technical solution, it also includes a top plate, the bottom of which has a ring of insertion grooves. The tops of the first side plate and the second side plate in the unfolded state are located in the insertion grooves, so that the top plate covers the first side plate and the second side plate. Several connecting rods are hinged to the inner side of the first side plate. The tops of the connecting rods are snapped onto the bottom of the top plate. The connecting rods connect the top plate to the first side plate. When the top plate is moved, the top plate and the connecting rods can rotate relative to the first side plate and open the receiving cavity.

[0012] As a further optimization of the above technical solution: the connecting rod is approximately L-shaped, and the end of the connecting rod is bent upward to form a snap-in portion. Both ends of the snap-in portion have protruding second hinge shafts. The inner side of one of the first side plates has several second mounting blocks. The second mounting blocks have second mounting slots. The two side walls of the second mounting slots have second hinge slots. The two sides of the opening of the second hinge slots converge inward. The snap-in portion is located in the second mounting slot. The second hinge shaft snaps into the second hinge slot, completing the hinge connection between the connecting rod and the first side plate.

[0013] As a further optimization of the above technical solution: the top of the connecting rod has two movable grooves, each of which is provided with an insertion plate. The insertion plate has an insertion block, and the insertion block has an insertion bevel. The bottom of the top plate has a mounting frame, and the two sides of the mounting frame have snap-in holes. The top of the connecting rod is inserted into the mounting frame, and the insertion block snaps into the snap-in hole, thus completing the snap-in connection between the connecting rod and the top plate.

[0014] As a further optimization of the above technical solution: both second side plates are provided with handle grooves.

[0015] Compared with existing technologies, this utility model, after folding, has two first side plates, two second side plates, and a top plate stacked sequentially on the bottom plate, greatly reducing the volume after folding and minimizing the space required for transportation and storage, thus facilitating transportation and storage. Simultaneously, the top plate is located on the top layer after folding, giving the folded product a flat rectangular structure, making it convenient to stack multiple units for transportation. Furthermore, the first and second side plates, after folding, are positioned between the top plate, bottom plate, first insertion part, and second insertion part, thus protecting the insertion blocks and mounting protrusions on the first and second side plates used for installation, preventing damage from compression during transportation and affecting subsequent installation. The structure within the movable groove provides space for the insertion protrusions to move and rotate, facilitating their synchronous movement and rotation with the first and second side plates during the folding process, preventing the first and second side plates from folding further. There are occasional jamming issues; the inclined surface on the insertion protrusion and the guide inclined surface on the movable groove guide the insertion of the insertion protrusion into the movable groove. When the positioning surface on the insertion protrusion moves up, it contacts the bottom surface of the limiting block to prevent the first and second side plates from detaching from the base plate. The arc edge on the insertion protrusion makes the rotation of the insertion protrusion smoother; the cooperation of the mounting protrusion and the locking block group makes the installation between the first and second side plates more stable, and at the same time, it makes disassembly simpler and more convenient; by setting a connecting rod, the top plate is connected to the first side plate. When the top plate is moved, the top plate and the connecting rod can rotate relative to the first side plate and open the receiving cavity. After the top plate is opened, it can maintain its connection with the first side plate and hang on the side of the first side plate. This does not affect the use and storage of items in the receiving cavity, and also solves the problem of having nowhere to put the items after the top plate is removed. At the same time, the connecting rod is detachably connected to the top plate and the first side plate, which is simple and convenient to disassemble and does not affect folding. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is an exploded structural diagram of the present invention.

[0018] Figure 3 yes Figure 2 A magnified structural diagram of point A in the middle.

[0019] Figure 4 yes Figure 2 A magnified structural diagram at point B in the middle.

[0020] Figure 5 yes Figure 2 A magnified structural diagram at point C.

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of this utility model after folding. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. For example... Figure 1-6 As shown, a folding storage box includes a base plate 2, two first side plates 3, and two second side plates 4. The first side plates 3 and second side plates 4 are both located on the base plate 2, and the two second side plates 4 are located on either side of the first side plate 3. The base plate 2, the two first side plates 3, and the two second side plates 4 together form a receiving cavity. Several insertion blocks 5 are formed at the bottom of both the first side plates 3 and the second side plates 4, and insertion protrusions 51 are formed at both ends of the bottom of the insertion blocks 5. Several movable grooves 21 are formed at the top of the base plate 2. Two baffles 22 are provided on the sides of the openings of the movable grooves 21, and limiting blocks 23 are provided on the inner sides of the baffles 22. There is a space for movement between the limiting blocks 23 and the bottom and walls of the movable grooves 21. The insertion blocks 5 and the insertion protrusions 51 enter the movable grooves 21, so that the insertion protrusions 51 are located below the limiting blocks 23 and can move up and down and rotate within the space. The baffles 22 prevent the insertion protrusions 51 from dislodging from the movable grooves 21. When the first side plate 3 and the second side plate 4 are in the unfolded state, the bottom surfaces of the first side plate 3 and the second side plate 4 are in contact with the top surface of the base plate 2, the insertion block 5 is vertically set, and the insertion protrusion 51 is located below the limiting block 23. When folding is required, the two first side plates 3 and the two second side plates 4 are rotated to a horizontal state and moved up and down so that the two first side plates 3 and the two second side plates 4 can be stacked on the base plate 2 in sequence. The insertion block 5 and the insertion protrusion 51 rotate and move up and down synchronously within the movable space along with the first side plates 3 and the second side plates 4.

[0023] In the above technical solution: the insertion protrusion 51 is approximately triangular, and includes a vertical side 52, a hypotenuse 53, and an arc-shaped side 54, as well as a horizontal positioning surface 55 located between the vertical side 52 and the hypotenuse 53. A guide slope 26 is formed on the top of the groove wall of the movable groove 21. When the insertion protrusion 51 is installed, the hypotenuse 53 and the guide slope 26 guide the insertion process of the insertion protrusion 51. The vertical side 52 is positioned close to the receiving cavity, and the positioning surface 55 is located below the limiting block 23. When the first side plate 3 and the second side plate 4 are moved upwards, the positioning surface 55 contacts the bottom surface of the limiting block 23, causing the first side plate 3 and the second side plate 4 to move the base plate 2 upwards synchronously, preventing the first side plate 3 and the second side plate 4 from detaching from the base plate 2. When the first side plate 3 and the second side plate 4 are rotated and folded relative to the base plate 2, the insertion block 5 and the insertion protrusion 51 rotate synchronously, so that the vertical edge 52 rotates to a horizontal position, and the arc edge 54 makes the rotation of the insertion protrusion 51 smoother, preventing jamming and affecting the folding of the first side plate 3 and the second side plate 4.

[0024] In the above technical solution: the top of the base plate 2 has two upwardly protruding first insertion portions 24 and two second insertion portions 25. The height of the second insertion portions 25 is higher than the height of the first insertion portions 24. The top of both the second insertion portions 25 and the top of the first insertion portions 24 are provided with several movable grooves 21. The height of the movable grooves 21 on the second insertion portions 25 is higher than the height of the movable grooves 21 on the first insertion portions 24. The first side plate 3 is installed on the first insertion portions 24, and the second side plate 4 is installed on the second insertion portions 25.

[0025] In the above technical solution: the height of the first side plate 3 is greater than the width within the base plate 2. Both first side plates 3 include an upper side plate 31 and a lower side plate 32 that are hinged to each other. The height of the upper side plate 31 and the height of the lower side plate 32 are both less than the width within the base plate 2. The insertion block 5 is located at the bottom of the lower side plate 32. The height of the second side plate 4 is less than the length within the base plate 2. When folding the storage box, rotate the upper side plate 31 inward to fold the upper side plate 31 and the lower side plate 32. Then rotate one of the first side plates 3 to place it horizontally on the base plate 2. Then rotate the second first side plate 3 to place it horizontally on the first first side plate 3. Next, rotate the two second side plates 4 in sequence so that one of the second side plates 4 is placed horizontally on the second first side plate 3, and the second second side plate 4 is placed horizontally on the first second side plate 4. After folding, the insertion blocks 5 on the first side plate 3 and the second side plate 4 are horizontally located within the movable groove 21. The first side plate 3 is located between the two first insertion parts 24, and the second side plate 4 is located between the two second insertion parts 25. Figure 6 As shown.

[0026] In the above technical solution: the bottom of the upper side plate 31 is provided with a plurality of first hinge shafts 33, the inner side of the lower side plate 32 is provided with a plurality of first mounting blocks 39, the first mounting blocks 39 are provided with first mounting slots, the two sides of the first mounting slot are provided with first hinge slots, the two sides of the opening of the first hinge slot are narrowed inward, and the first hinge shafts 33 are inserted into the first hinge slots.

[0027] In the above technical solution: Both ends of the first side plate 3 are provided with several mounting protrusions 35, and both ends of the mounting protrusions 35 are provided with positioning protrusions 36. The two sides of the second side plate 4 are bent to form mounting portions 41. Several locking block groups are provided on the mounting portions 41, including a first locking block 42 and a second locking block 43. The first locking block 42 is located above the second locking block 43. The end of the first locking block 42 is provided with a downwardly protruding first stop 44, and the end of the second locking block 43 is provided with an upwardly protruding second stop 45. Both the first stop 44 and the second stop 45 are provided with guide arc surfaces. Slots are formed between the first stop 44 and the mounting portion 41, and between the second stop and the mounting portion 41. Connecting ribs are provided between the first locking block 42, the second locking block 43, and the sides of the second side plate 4. Several reinforcing ribs are provided between the mounting portion 41 and the second side plate 4, and the mounting protrusions 35 are provided with clearance grooves 37 for making way for the reinforcing ribs. When installing the first side plate 3 and the second side plate 4, both ends of the mounting protrusion 35 pass between the first stop 44 and the second stop 45 and enter the slot. Two positioning protrusions 36 are located on the sides of the first stop 42 and the second stop 43, respectively. The positioning protrusions 36, the first stop 44, and the second stop 45 prevent the end of the mounting protrusion 35 from disengaging from the slot, thereby completing the detachable connection between the first side plate 3 and the second side plate 4. When it is necessary to separate the first side plate 3 and the second side plate 4, the first stop 44 is pried upward and the second stop 45 is pried downward, moving the mounting protrusion 35 to disengage it from the slot, thus completing the disassembly between the first side plate 3 and the second side plate 4.

[0028] The above technical solution also includes a top plate 1, with a ring of insertion grooves at the bottom. The tops of the first side plate 3 and the second side plate 4 in the unfolded state are located within the insertion grooves, so that the top plate 1 covers the first side plate 3 and the second side plate 4. Several connecting rods 6 are hinged to the inner side of the first side plate 3. The tops of the connecting rods 6 are snapped onto the bottom of the top plate 1, and the connecting rods 6 connect the top plate 1 and the first side plate 3. Moving the top plate 1 allows the top plate 1 and the connecting rods 6 to rotate relative to the first side plate 3 and open the receiving cavity. When the storage box needs to be folded, the connecting rods 6 are removed from the first side plate 3 and the top plate 1. After the first side plate 3 is folded, it is located inside the bottom plate 2, and the connecting rods 6 are also placed inside the bottom plate 2. The top plate 1 is placed on top of the folded second side plate 4.

[0029] In the above technical solution: the connecting rod 6 is approximately L-shaped, and the end of the connecting rod 6 is bent upward to form a locking part 61. Both ends of the locking part 61 have protruding second hinge shafts 62. Several second mounting blocks 34 are formed on the inner side of one of the first side plates 3. Each second mounting block 34 has a second mounting groove, and both sides of the groove wall of the second mounting groove have second hinge grooves 38. The two sides of the opening of the second hinge groove 38 converge inward. The locking part 61 is located within the second mounting groove, and the second hinge shaft 62 is engaged within the second hinge groove 38, completing the hinge connection between the connecting rod 6 and the first side plate 3. The second mounting blocks 34 are specifically located at the top of the inner side of the upper side plate 31. During disassembly, force is applied to disengage the second hinge shaft 62 from the second hinge groove 38, completing the disassembly between the connecting rod 6 and the first side plate 3.

[0030] In the above technical solution: the top of the connecting rod 6 has two movable grooves 63, each groove 63 has an insertion plate 64, the insertion plate 64 has an insertion latch 65, and the insertion latch 65 has an insertion bevel 66. The bottom of the top plate 1 has a mounting frame, and the two sides of the mounting frame have locking holes. The top of the connecting rod 6 is inserted into the mounting frame, and the insertion latch 65 is engaged in the locking hole, completing the engagement between the connecting rod 6 and the top plate 1. During disassembly, the insertion plate 64 is moved to disengage the insertion latch 65 from the locking hole, and then the top of the connecting rod 6 is pulled out of the mounting frame, completing the disassembly between the connecting rod 6 and the top plate 1.

[0031] In the above technical solution: both second side plates 4 are provided with handle grooves 46. When it is necessary to move the storage box, the hand can be easily placed into the handle grooves 46 to apply force.

[0032] The folding process of this utility model is as follows: First, separate the connecting rod 6 from the first side plate 3 and the top plate 1, and remove the top plate 1; then, disassemble the first side plate 3 and the second side plate 4; next, rotate the upper side plate 31 inward to fold the upper side plate 31 and the lower side plate 32, then rotate one of the first side plates 3 to place it horizontally on the bottom plate 2, and then rotate the second first side plate 3 to place it horizontally on the first first side plate 3; then rotate the two second side plates 4 in sequence so that one of the second side plates 4 is placed horizontally on the second first side plate 3, and the second second side plate 4 is placed horizontally on the first second side plate 4, thus completing the stacking of the two first side plates 3 and the two second side plates 4 on the bottom plate 2; place the disassembled connecting rod 6 in the empty space on the bottom plate 2, and finally place the top plate 1 on the folded second second side plate 4 to complete the overall folding.

[0033] After folding, the two first side plates 3, two second side plates 4, and the top plate 1 are stacked sequentially on the bottom plate 2, greatly reducing the volume after folding and minimizing the space required for transportation and storage. Simultaneously, the top plate 1 is positioned on the top layer after folding, giving the folded product a flat rectangular structure, facilitating stacking multiple units for transportation. Furthermore, the first side plates 3 and 4, after folding, are positioned between the top plate 1, the bottom plate 2, the first insertion part 24, and the second insertion part 25, thus protecting the insertion blocks 5 and mounting protrusions 36 on the first and second side plates 3 and 4, preventing damage from compression during transportation and ensuring subsequent installation. The structure within the movable groove 21 provides space for the insertion protrusions 51 to move and rotate, allowing them to move and rotate synchronously with the first and second side plates 3 and 4 during the folding process, preventing jamming during folding. The inclined surface 53 on the insertion protrusion 51 and the guide inclined surface 26 on the movable groove 21 guide the insertion process of the insertion protrusion 51 into the movable groove 21. When the positioning surface 55 on the insertion protrusion 51 moves upward, it contacts the bottom surface of the limiting block 23 to prevent the first side plate 3 and the second side plate 4 from detaching from the base plate 2. The arc edge on the insertion protrusion 51 makes the rotation of the insertion protrusion 51 smoother. The cooperation of the mounting protrusion 25 and the locking block group makes the installation between the first side plate 3 and the second side plate 4 more stable, and at the same time, it makes disassembly simpler and more convenient. By setting the connecting rod 6, the top plate 1 is connected to the first side plate 3. When the top plate 1 is moved, the top plate 1 and the connecting rod 6 can rotate relative to the first side plate 3 and open the receiving cavity. After the top plate 1 is opened, it can maintain the connection with the first side plate 3 and hang on the side of the first side plate 3. This does not affect the use and storage of items in the receiving cavity, and also solves the problem of where to put the top plate 1 after it is removed. At the same time, the connecting rod 6 is detachably connected to the top plate 1 and the first side plate 3, which is simple and convenient to disassemble and does not affect folding.

[0034] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should fall within the protection scope of this utility model.

Claims

1. A folding storage box, comprising a base plate (2), two first side plates (3) and two second side plates (4), wherein the first side plates (3) and the second side plates (4) are both located on the base plate (2), and the two second side plates (4) are respectively located on both sides of the first side plates (3), wherein the base plate (2), the two first side plates (3) and the two second side plates (4) together form a receiving cavity, characterized in that... The bottom of the first side plate (3) and the second side plate (4) are provided with several insertion blocks (5). The two ends of the bottom of the insertion block (5) are provided with insertion protrusions (51). The top of the bottom plate (2) is provided with several movable grooves (21). The side of the opening of the movable groove (21) is provided with two baffles (22). The inner side of the baffle (22) is provided with a limiting block (23). There is a movable space between the limiting block (23) and the bottom and wall of the movable groove (21). The insertion blocks (5) and the insertion protrusions (51) are inserted into the groove. Insert into the movable slot (21) so that the insertion protrusion (51) is located below the limiting block (23) and can move up and down and rotate within the movable space; when folding is required, the two first side plates (3) and the two second side plates (4) rotate to a horizontal state and move up and down so that the two first side plates (3) and the two second side plates (4) can be stacked on the base plate (2) in sequence, and the insertion block (5) and the insertion protrusion (51) rotate and move up and down within the movable space synchronously with the first side plates (3) and the second side plates (4).

2. A folding storage box according to claim 1, characterized in that... The insertion protrusion (51) includes a vertical side (52), a sloping side (53) and an arc-shaped side (54), and also includes a horizontal positioning surface (55) located between the vertical side (52) and the sloping side (53). The top of the groove wall of the movable groove (21) is provided with a guide slope (26). When the insertion protrusion (51) is installed, the vertical side (52) is set close to the receiving cavity, and the positioning surface (55) is located below the limiting block (23).

3. A folding storage box according to claim 1, characterized in that... The top of the base plate (2) is provided with two first insertion parts (24) and two second insertion parts (25) protruding upwards. The height of the second insertion part (25) is higher than the height of the first insertion part (24). The top of the second insertion part (25) and the top of the first insertion part (24) are provided with a plurality of movable grooves (21). The height of the movable grooves (21) on the second insertion part (25) is higher than the height of the movable grooves (21) on the first insertion part (24). The first side plate (3) is installed on the first insertion part (24), and the second side plate (4) is installed on the second insertion part (25).

4. A folding storage box according to claim 1, characterized in that... The height of the first side plate (3) is greater than the width within the bottom plate (2). Both first side plates (3) include an upper side plate (31) and a lower side plate (32) that are hinged to each other. The height of the upper side plate (31) and the height of the lower side plate (32) are both less than the width within the bottom plate (2). The insertion block (5) is located at the bottom of the lower side plate (32). The height of the second side plate (4) is less than the length within the bottom plate (2).

5. A folding storage box according to claim 4, characterized in that... The bottom of the upper side plate (31) is provided with a plurality of first hinge shafts (33), and the inner side of the lower side plate (32) is provided with a plurality of first mounting blocks (39). The first mounting blocks (39) are provided with first mounting slots. The two sides of the first mounting slot are provided with first hinge slots. The two sides of the opening of the first hinge slot are narrowed inward, and the first hinge shafts (33) are inserted into the first hinge slots.

6. A folding storage box according to claim 1, characterized in that... The first side plate (3) has several mounting protrusions (35) at both ends, and each mounting protrusion (35) has a positioning protrusion (36) at both ends. The two sides of the second side plate (4) are bent to form a mounting part (41). The mounting part (41) has several locking block groups, including a first locking block (42) and a second locking block (43). The first locking block (42) is located above the second locking block (43). The end of the first locking block (42) has a downward protruding first stop (44), and the end of the second locking block (43) has an upward protruding second stop (44). 45) Both the first stop (44) and the second stop (45) are provided with guide arc surfaces. A slot is formed between the first stop (44) and the mounting part (41) and between the second stop (45) and the mounting part (41). When the first side plate (3) and the second side plate (4) are installed, the two ends of the mounting protrusion (35) pass through the first stop (44) and the second stop (45) respectively and enter the slot. The two positioning protrusions (36) are located on the sides of the first block (42) and the second block (43) respectively.

7. A folding storage box according to claim 1, characterized in that... It also includes a top plate (1), the bottom of which is provided with an insertion groove. The tops of the first side plate (3) and the second side plate (4) in the unfolded state are located in the insertion groove, so that the top plate (1) covers the first side plate (3) and the second side plate (4). Several connecting rods (6) are hinged to the inner side of the first side plate (3). The tops of the connecting rods (6) are snapped onto the bottom of the top plate (1). The connecting rods (6) connect the top plate (1) to the first side plate (3). When the top plate (1) is moved, the top plate (1) and the connecting rods (6) can rotate relative to the first side plate (3) and open the receiving cavity.

8. A folding storage box according to claim 7, characterized in that... The connecting rod (6) is approximately L-shaped. The end of the connecting rod (6) is bent upward to form a snap-in portion (61). Both ends of the snap-in portion (61) are provided with protruding second hinge shafts (62). The inner side of one of the first side plates (3) is provided with several second mounting blocks (34). The second mounting blocks (34) are provided with second mounting slots. The two sides of the second mounting slots are provided with second hinge slots (38). The two sides of the opening of the second hinge slot (38) are narrowed inward. The snap-in portion (61) is located in the second mounting slot. The second hinge shaft (62) is snapped into the second hinge slot (38) to complete the hinge between the connecting rod (6) and the first side plate (3).

9. A folding storage box according to claim 7, characterized in that... The top of the connecting rod (6) has two movable grooves (63), and each of the two movable grooves (63) is provided with an insertion plate (64). The insertion plate (64) is provided with an insertion block (65), and the insertion block (65) is provided with an insertion slope (66). The bottom of the top plate (1) is provided with a mounting frame, and the two sides of the mounting frame are provided with snap-in holes. The top of the connecting rod (6) is inserted into the mounting frame, and the insertion block (65) is snapped into the snap-in hole, thus completing the snap-in connection between the connecting rod (6) and the top plate (1).

10. A folding storage box according to claim 1, characterized in that... Both of the second side plates (4) have handle grooves (46).

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