Integrally-formed plastic box

Abstract

The utility model discloses an integrally formed plastic box, which relates to the technical field of storage boxes, and comprises a square bottom plate and four side plates, each side plate is unfolded around the bottom plate, and the bottom edges of each side plate are respectively close to the front, rear, left and right edges of the bottom plate, so that each side plate can be integrally formed with the bottom plate through injection molding. A connecting piece is formed between the edge of the bottom edge of each side plate and the edge of the corresponding bottom plate during integral injection molding, the connecting pieces are provided with creases, each side plate can be folded inwards along the creases, and when each side plate is folded to be vertical, the side edges of the adjacent side plates can be clamped with each other, so that a containing cavity with an opening in the top is jointly defined by each side plate and the bottom plate. The top of the containing cavity is covered with a top cover so that the top opening can be blocked, the side plates can be sequentially folded inwards to the position above the bottom plate, and the side plates can be covered with the top cover. According to the utility model, the number of opened moulds is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of storage box technology, and specifically to a one-piece molded plastic box. Background Technology

[0002] The side panels and bottom panels of current folding storage boxes are usually hinged together by hinge shafts. These folding storage boxes are usually made of plastic. When making the mold, the molds for the side panels and the bottom panels need to be separated. There are many parts, so a large number of molds are needed. In addition, workers need to assemble the side panels and the bottom panels, which increases the production cost. Utility Model Content

[0003] The purpose of this invention is to provide a one-piece molded plastic box, which reduces the number of molds required, eliminates the need for assembly by workers, and lowers production costs.

[0004] To achieve the above objectives, the solution of this utility model is as follows:

[0005] A one-piece molded plastic box includes a square base plate and four side plates. Each side plate unfolds around the base plate, and the bottom edge of each side plate is close to the front, back, left, and right edges of the base plate, respectively, so that each side plate can be integrally injection molded with the base plate. A connecting piece is formed between the bottom edge of each side plate and the corresponding edge of the base plate during the one-piece injection molding process. The connecting piece has creases, and each side plate can be folded inward along the creases. When all side plates are folded to a vertical position, the sides of adjacent side plates can interlock with each other, so that each side plate and the base plate together form a receiving cavity with a top opening. The top opening of the receiving cavity is sealed by a top cover. Each side plate can also be folded inward sequentially to the top of the base plate, and the top cover can be placed on top of the side plates.

[0006] Furthermore, it also includes a ring-shaped reinforcing ring, which is fitted around the outer perimeter of the base plate to increase the sturdiness of the plastic box.

[0007] Furthermore, one end of the connecting piece is integrally formed at the bottom of the connecting side plate, and the other end of the connecting piece is integrally formed at the outer wall of the connecting base plate. When each side plate is folded along the crease to a vertical state, each side plate protrudes outward from the outer wall of the base plate. When the annular reinforcing ring is fitted around the outer periphery of the base plate, the bottom wall of the side plate abuts against the top wall of the reinforcing ring, thereby restricting the side plate from folding outward, so that the side plate can at most fold outward to a vertical state.

[0008] Furthermore, the bottom of the reinforcing ring is recessed to form a first slot, and an insert plate is protruding from the top of each side plate. Buckles are provided on the left and right side plates. The side plates and the bottom plate together form a receiving cavity with a top opening. When multiple plastic boxes without top covers are stacked, the insert plate of the side plate of the lower layer of plastic boxes can be inserted into the first slot of the reinforcing ring of the upper layer of plastic boxes to connect the two adjacent layers of plastic boxes together. The left and right sides of the reinforcing ring are also provided with first overlapping joints. The buckles of the left and right side plates of the lower layer of plastic boxes can be fastened to the first overlapping joints of the reinforcing ring of the upper layer of plastic boxes to fix the two adjacent layers of plastic boxes together.

[0009] Furthermore, each edge of the top cover has a second slot recessed at the bottom. When the four side plates are folded to the vertical position, the insert plate on each side plate is inserted into the second slot of the corresponding edge of the top cover, so that the top cover is placed on top of the receiving cavity.

[0010] Furthermore, the top cover is provided with second joints on the left and right sides respectively, and the buckle can also be fastened to the second joints. When the top cover is placed on the top of the receiving cavity, the openings on the left and right side plates can be fastened to the second joints on the left and right sides of the top cover to fix the top cover to the top of the receiving cavity.

[0011] Furthermore, the height of the front and rear side walls of the base plate is less than the height of the left and right side walls of the base plate, and the height of the front and rear side walls of the corresponding reinforcing ring is less than the height of the left and right side walls of the reinforcing ring.

[0012] Furthermore, the crease is located in the middle of the connecting piece and is set along the length of the connecting piece. The thickness of the crease is less than the thickness of other parts of the connecting piece. The connecting piece extends obliquely towards the bottom of the side plate and the side wall of the bottom plate, respectively, with the crease as the boundary, forming two oblique surfaces. When the side plate is unfolded outward around the bottom plate, the two oblique surfaces are opposite each other. When the side plate is in a vertical state, the two oblique surfaces are joined together to form a large oblique surface. The inner side of the reinforcing ring forms a downward oblique surface. When the reinforcing ring is fitted around the bottom plate, the large oblique surface and the oblique surface on the inner side of the reinforcing ring fit together.

[0013] Furthermore, a doorway is provided on the front side panel, and a door that can be opened or closed is provided at the doorway. When closed, the door is magnetically attached to the front side panel, and a handle for hand use can also be detached from the door.

[0014] Furthermore, when folded, the front side panel folds inward and over the bottom panel, the rear side panel folds inward and over the front side panel, the left and right side panels fold in opposite directions and over the rear side panel, and the top cover covers the left and right side panels.

[0015] After adopting the above solution, the beneficial effects of this utility model are as follows:

[0016] In this invention, each side plate unfolds around the base plate, with the bottom edge of each side plate close to the front, back, left, and right edges of the base plate, respectively, so that each side plate can be integrally injection molded with the base plate. During the integral injection molding process, a connecting piece is formed between the bottom edge of each side plate and the corresponding edge of the base plate. Therefore, the base plate and each side plate can be installed in one mold, with fewer parts, reducing the number of molds required, and eliminating the step of manually assembling the side plates and the base plate, thus reducing production costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 yes Figure 2 Enlarged view of part A;

[0020] Figure 4 This is a schematic diagram of the structure of the side plate of this utility model forming a receiving cavity;

[0021] Figure 5 This is a schematic diagram of the side plate of this utility model unfolded on the base;

[0022] Figure 6 yes Figure 5 Enlarged view of part B;

[0023] Figure 7 This is a schematic diagram of the structure of the side plate of this utility model folded on the base;

[0024] Figure 8 This is a schematic diagram of the snap-fit ​​structure between the side plates of this utility model;

[0025] Figure 9 yes Figure 8 Enlarged view of part C;

[0026] Figure 10 This is a schematic diagram of the bottom structure of the top cover of this utility model;

[0027] Figure 11 This is a schematic diagram of the reinforcing ring of this utility model;

[0028] Figure 12 This is a schematic diagram of the bottom structure of the reinforcing ring of this utility model;

[0029] Figure 13 This is a schematic diagram of the left, right, and rear side panels of this utility model without ribs;

[0030] Figure 14 This is an unfolded schematic diagram of the left, right, and rear side panels of this utility model without ribs.

[0031] Figure 15 This is a folding diagram of the left, right, and rear side panels of this utility model without ribs.

[0032] Label Explanation:

[0033] 10. Base plate; 11. Second snap-fit ​​part; 111. Slot; 20. Side plate; 201. Bottom edge; 202. Side; 21. Buckle; 22. Insert plate; 23. Third snap-fit ​​part; 231. Groove; 24. Fourth snap-fit ​​part; 241. Hook; 2411. First plate; 2412. Second plate; 25. Fifth snap-fit ​​part; 251. Protrusion; 26. Sixth snap-fit ​​part; 261. Hanging plate; 27. Doorway; 28. Box door; 281. Handle; 29. ​​Rib; 30. Receiving cavity; 40. Connecting piece; 41. Crease; 42. Beveled surface; 50. Top cover; 51. Second overlapping joint; 52. Second slot; 60. Reinforcing ring; 61. First snap-fit ​​part; 611. Locking block; 62. First slot; 63. First overlapping joint; 64. Beveled surface. Detailed Implementation

[0034] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0035] like Figures 1 to 15 As shown, this embodiment provides an integrally molded plastic box, including a square base plate 10 and four side plates 20. Each side plate 20 unfolds around the base plate 10, and the bottom edge 201 of each side plate 20 is close to the front, back, left, and right edges of the base plate 10, so that each side plate 20 can be integrally injection molded with the base plate 10. During the integral injection molding process, a connecting piece 40 is formed between the bottom edge 201 of each side plate 20 and the corresponding edge of the base plate 10. The bottom plate 10 has a crease 41, and each side plate 20 can be folded inward along the crease 41. When each side plate 20 is folded to a vertical position, the sides 202 of adjacent side plates 20 can be interlocked with each other so that each side plate 20 and the bottom plate 10 together form a receiving cavity 30 with a top opening. The top opening of the receiving cavity 30 is sealed by a top cover 50. Each side plate 20 can also be folded inward in sequence to above the bottom plate 10, and the top cover 50 can be placed on top of the side plate 20.

[0036] In this invention, each side plate 20 unfolds around the base plate 10. The bottom edge 201 of each side plate 20 is close to the front, back, left, and right edges of the base plate 10, so that each side plate 20 can be integrally injection molded with the base plate 10. During the integral injection molding, a connecting piece 40 is formed between the bottom edge 201 of each side plate 20 and the corresponding edge of the base plate 10. Therefore, the base plate 10 and each side plate 20 can be on a single mold, with fewer parts, reducing the number of molds required, and eliminating the step of manually assembling the side plates and the base plate, thus reducing production costs.

[0037] It can be understood that the connecting piece 40 is folded through the crease 41, which allows the connecting piece 40 to be folded to a greater extent. Folding through the crease 41 also avoids the situation where the side plate 20 is subjected to excessive pressure in the folded state, which could cause the connecting piece 40 to break. Therefore, even if multiple identical plastic boxes are stacked in the folded state, there is no need to worry about the connecting piece 40 of the bottom plastic box being crushed and rendered unusable, which makes transportation more convenient.

[0038] Specifically, when folding, the front side panel 20 folds inward and over the bottom plate 10, the rear side panel 20 folds inward and over the front side panel 20, the left and right side panels 20 fold in opposite directions and over the rear side panel 20, and the top cover 50 covers the left and right side panels 20.

[0039] Furthermore, it also includes a ring-shaped reinforcing ring 60, which is fitted around the outer periphery of the base plate 10 to increase the sturdiness of the plastic box.

[0040] Specifically, the bottom of the connecting plate 20 is integrally formed at one end of the connecting piece 40, and the outer wall of the bottom plate 10 is integrally formed at the other end of the connecting piece 40. When each side plate 20 is folded to a vertical state along the crease 41, each side plate 20 protrudes outward from the outer wall of the bottom plate 10. When the annular reinforcing ring 60 is fitted around the outer periphery of the bottom plate 10, the bottom wall of the side plate 20 abuts against the top wall of the reinforcing ring 60, thereby restricting the side plate 20 from folding outward and allowing the side plate 20 to fold outward to a vertical state at most, so as to provide support for the side plate 20 and prevent the side plate 20 from folding outward around the bottom plate 10, thereby making the plastic box of this utility model more solid and increasing its stability.

[0041] Furthermore, the bottom of the reinforcing ring 60 is recessed to form a first slot 62, and an insert plate 22 is protruding from the top of each side plate 20. Buckles 21 are provided on the left and right side plates 20. When the side plates 20 and the bottom plate 10 together form a receiving cavity 30 with a top opening, and multiple plastic boxes without top covers 50 are stacked layer by layer, the insert plate 22 of the side plate 20 of the lower layer of plastic box can be inserted into the first slot 62 of the reinforcing ring 60 of the upper layer of plastic box to connect the two adjacent layers of plastic boxes together. The left and right sides of the reinforcing ring 60 are also provided with first overlapping joints 63. The buckles 21 of the left and right side plates 20 of the lower layer of plastic box can be fastened to the first overlapping joints 63 of the reinforcing ring 60 of the upper layer of plastic box to fix the two adjacent layers of plastic boxes together.

[0042] Furthermore, each edge of the top cover 50 has a second slot 52 recessed at the bottom. When the four side plates 20 are folded to the vertical position, the insert plate 22 on each side plate 20 is inserted into the second slot 52 on the corresponding edge of the top cover 50, so that the top cover 50 covers the top of the receiving cavity 30.

[0043] Furthermore, the top cover 50 is provided with second joints 51 on the left and right sides respectively. The buckle 21 can also be fastened to the second joints 51. When the top cover 50 is placed on the top of the receiving cavity 30, the openings on the left and right side plates 20 can be fastened to the second joints 51 on the left and right sides of the top cover 50 respectively, so as to fix the top cover 50 on the top of the receiving cavity 30.

[0044] Furthermore, the height of the front and rear side walls of the base plate 10 is less than the height of the left and right side walls of the base plate 10, and the height of the front and rear side walls of the corresponding reinforcing ring 60 is less than the height of the left and right side walls of the reinforcing ring 60, so that after folding, the left and right side panels 20 can be folded flat on top of the rear side panel 20, and after folding, the height of the left and right side panels 20 is flush with the height of the left and right side walls of the reinforcing ring 60, thereby preventing the left and right side panels 20 from tilting upwards after folding, so that the top cover 50 can be flatly covered on top of the left and right side panels 20.

[0045] Furthermore, the crease 41 is located in the middle of the connecting piece 40 and is set along the length of the connecting piece 40. The thickness of the crease 41 is less than the thickness of other parts of the connecting piece 40. The connecting piece 40 extends obliquely towards the bottom of the side plate 20 and the side wall of the bottom plate 10 with the crease 41 as the boundary to form two oblique surfaces 42. When the side plate 20 is unfolded outward around the bottom plate 10, the two oblique surfaces 42 are opposite each other. When the side plate 20 is in a vertical state, the two oblique surfaces 42 are joined together to form a large oblique surface 42. The inner side of the reinforcing ring 60 forms a downward oblique surface 64. When the reinforcing ring 60 is fitted around the bottom plate 10, the large oblique surface 42 and the oblique surface 64 on the inner side of the reinforcing ring 60 fit together to abut against the connecting piece 40 and prevent the connecting piece 40 from folding outward with the crease 41 as the boundary, thereby further preventing the side plate 20 from folding outward.

[0046] Furthermore, a doorway 27 is provided on the front side panel 20, and a box door 28 that can be opened or closed is provided at the doorway 27. When closed, the box door 28 is magnetically attracted to the front side panel 20, and a handle 281 for hand use is also provided on the box door 28.

[0047] Specifically, there are two doors 28, a left door 28 and a right door 28, which respectively block the left and right halves of the doorway 27. The left side of the left door 28 is hinged to the left side of the doorway 27, and the right side of the right door 28 is hinged to the right side of the doorway 27. This allows the left and right doors 28 to swing away from each other to open the doorway 27, or to swing towards each other to block the doorway 27. A magnet is installed in the middle of the top and bottom sides of the doorway 27. Magnets are also installed at the top and bottom of the right side of the left door 28, and at the top and bottom of the left side of the right door 28. When the two doors 28 block the doorway 27, the magnets of the two doors 28 are attracted by the magnets on the doorway 27, preventing the doors 28 from being opened arbitrarily.

[0048] Specifically, the annular reinforcing ring 60 and the base plate 10 are respectively provided with a first snap-fit ​​part 61 and a second snap-fit ​​part 11. When the annular reinforcing ring 60 is fitted onto the base plate 10, the first snap-fit ​​part 61 and the second snap-fit ​​part 11 snap into each other to restrict the reinforcing ring 60 from falling off the base plate 10, thereby providing support for the side plate 20 and increasing the stability of the plastic box.

[0049] Preferably, the first locking part 61 is a wedge-shaped locking block 611 protruding inward from the inner side of the reinforcing ring 60, and the second locking part 11 is a locking groove 111 formed on the base plate 10. The upper end of the locking groove 111 extends to the connecting piece 40. When the reinforcing ring 60 is fitted on the base plate 10, the locking block 611 extends into the locking groove 111, and the bottom of the locking block 611 abuts against the lower end of the locking groove 111 to restrict the reinforcing ring 60 from moving downward and detaching from the base plate 10.

[0050] like Figure 9 As shown, the front and rear side panels 20 are provided with a third locking part 23 and a fourth locking part 24 on the left and right sides 202, and the left and right side panels 20 are provided with a fifth locking part 25 and a sixth locking part 26 on the front and rear sides 202. When the side panels 20 are flipped to the vertical position, the third locking part 23 and the fifth locking part 25 lock together to restrict the flipping of the front and rear side panels 20, and the fourth locking part 24 and the sixth locking part 26 lock together to restrict the flipping of the left and right side panels 20. It can be understood that by locking the third locking part 23 and the fifth locking part 25, and the fourth locking part 24 and the sixth locking part 26, the front, rear, left and right side panels 20 are connected as a whole, making it difficult for each side panel 20 to flip and unfold away from the base plate 10, thereby making the present invention more robust.

[0051] Preferably, slots 231 are provided on both the left and right sides 202 of the front and rear side panels 20. These slots 231 are the third locking parts 23. The front and rear sides 202 of the left side panel 20 have wedge-shaped protrusions 251 protruding to the right, and the front and rear sides 202 of the right side panel 20 have protrusions 251 protruding to the left. The protrusions 251 are the fifth locking parts 25. The slots 231 are used for the protrusions 251 to be locked in, thereby restricting the flipping of the front and rear side panels 20. Preferably, the protrusions 251 are wedge-shaped to facilitate insertion into the slots 231.

[0052] Preferably, hooks 241 are formed on the left and right sides 202 of the front and rear side panels 20, and the hooks 241 are the fourth locking parts 24. Hanging plates 261 are formed on the front and rear sides 202 of the left and right side panels 20, and the hanging plates 261 are the sixth locking parts 26. The hanging plates 261 are used for hooking the hooks 241, thereby restricting the flipping of the left and right side panels 20.

[0053] Specifically, the left and right sides 202 of the front side panel 20 extend in opposite directions to form first plates 2411, and a portion of the first plates 2411 protrudes forward to form second plates 2412. The second plates 2412 on the left and right sides 202 of the front side panel 20 are spaced apart from the sides 202 of the front side panel 20. The first plates 2411 and the second plates 2412 form hooks 241. The left and right sides of the rear side panel 20... Side 202 extends in opposite directions to form first plate 2411, and part of the first plate of the rear side plate 20 protrudes rearward to form second plate 2412. The second plate 2412 of the left and right sides 202 of the rear side plate 20 is spaced from the side 202 of the rear side plate 20. The first plate 2411 and the second plate 2412 of the rear side plate 20 also form hooks 241, which are fourth snap-fit ​​parts 24.

[0054] Specifically, the front and rear sides 202 of the left side panel 20 protrude 251 in the front-rear direction to form a hanging plate 261, which is the sixth snap-fit ​​part 26. The front and rear sides 202 of the right side panel 20 also protrude 251 in the front-rear direction to form a hanging plate 261. When the plastic box is unfolded, the left and right side panels 20 are first flipped and unfolded away from the bottom plate 10, and then the front and rear side panels 20 are flipped and unfolded away from the bottom plate 10. When the rear two side panels 20 are flipped to the vertical position, the hanging plates 261 of the left and right side panels 20 are inserted into the gap between the second plate 2412 and the side edge 202 of the front and rear side panels 20, so that the hanging plates 261 and the hooks 241 can hook each other to prevent the left and right side panels 20 from continuing to flip. At this time, the protrusions 251 on the left and right side panels 20 are also inserted into the slots 231 of the front and rear side panels 20, thereby preventing the front and rear side panels 20 from continuing to flip.

[0055] like Figure 4 , Figure 5 , Figure 7 As shown, in one embodiment, since the left, right, and rear side panels 20 are not strong enough, ribs 29 are integrally formed on the left, right, and rear side panels 20 to increase the strength of the left, right, and rear side panels 20.

[0056] like Figures 13 to 15 As shown, in another embodiment, the left, right, and rear side plates 20 are not provided with ribs 29 because they are strong enough.

[0057] The directional terms used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0058] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A one-piece molded plastic box, characterized in that: It includes a square base plate and four side plates. Each side plate unfolds around the base plate, with the bottom edge of each side plate close to the front, back, left, and right edges of the base plate, respectively, so that each side plate can be integrally injection molded with the base plate. During the integral injection molding, a connecting piece is formed between the bottom edge of each side plate and the corresponding edge of the base plate. The connecting piece has creases, and each side plate can be folded inward along the creases. When all side plates are folded to a vertical position, the sides of adjacent side plates can interlock with each other, so that each side plate and the base plate together form a receiving cavity with a top opening. The top opening of the receiving cavity is sealed by a top cover. Each side plate can also be folded inward sequentially to the top of the base plate, and the top cover can be placed on top of the side plates.

2. The one-piece molded plastic box as described in claim 1, characterized in that: It also includes a ring-shaped reinforcing ring, which is fitted around the outer perimeter of the base plate.

3. The one-piece molded plastic box as described in claim 2, characterized in that: One end of the connecting piece is integrally formed at the bottom of the connecting side plate, and the other end of the connecting piece is integrally formed at the outer wall of the connecting base plate. When each side plate is folded along the crease to a vertical state, each side plate protrudes outward from the outer wall of the base plate. When the annular reinforcing ring is fitted around the outer perimeter of the base plate, the bottom wall of the side plate abuts against the top wall of the reinforcing ring, thereby restricting the side plate from folding outward, so that the side plate can fold outward to a vertical state at most.

4. The one-piece molded plastic box as described in claim 2, characterized in that: The bottom of the reinforcing ring is concave to form a first slot, and an insert plate is protruding from the top of each side plate. Buckles are provided on the left and right side plates. The side plates and the bottom plate together form a receiving cavity with a top opening. When multiple plastic boxes without top covers are stacked, the insert plate of the side plate of the lower layer of plastic boxes can be inserted into the first slot of the reinforcing ring of the upper layer of plastic boxes to connect the two adjacent layers of plastic boxes together. The left and right sides of the reinforcing ring are also provided with first overlapping joints. The buckles of the left and right side plates of the lower layer of plastic boxes can be fastened to the first overlapping joints of the reinforcing ring of the upper layer of plastic boxes to fix the two adjacent layers of plastic boxes together.

5. The one-piece molded plastic box as described in claim 4, characterized in that: Each edge of the top cover has a second slot recessed at the bottom. When the four side plates are folded to the vertical position, the insert plate on each side plate is inserted into the second slot of the corresponding edge of the top cover, so that the top cover is placed on the top of the receiving cavity.

6. The one-piece molded plastic box as described in claim 4, characterized in that: The top cover has a second lap joint on each of its left and right sides. The buckle can also be fastened to the second lap joint. When the top cover is placed on the top of the receiving cavity, the openings on the left and right side plates can be fastened to the second lap joints on the left and right sides of the top cover to fix the top cover to the top of the receiving cavity.

7. The one-piece molded plastic box as described in claim 2, characterized in that: The height of the front and rear side walls of the base plate is less than the height of the left and right side walls of the base plate, and the height of the front and rear side walls of the corresponding reinforcing ring is less than the height of the left and right side walls of the reinforcing ring.

8. The one-piece molded plastic box as described in claim 2, characterized in that: The crease is located in the middle of the connecting piece and is set along the length of the connecting piece. The thickness of the crease is less than the thickness of other parts of the connecting piece. The connecting piece extends obliquely towards the bottom of the side plate and the side wall of the bottom plate, respectively, with the crease as the boundary, forming two oblique surfaces. When the side plate is unfolded outward around the bottom plate, the two oblique surfaces are opposite each other. When the side plate is in a vertical state, the two oblique surfaces are joined together to form a large oblique surface. The inner side of the reinforcing ring forms a downward oblique surface. When the reinforcing ring is placed around the bottom plate, the large oblique surface and the oblique surface on the inner side of the reinforcing ring fit together.

9. A one-piece molded plastic box as described in claim 1, characterized in that: A doorway is provided on the front side panel, and a door that can be opened or closed is provided at the doorway. When closed, the door is magnetically attached to the front side panel, and a handle for holding the hand can also be detached from the door.

10. A one-piece molded plastic box as described in claim 1, characterized in that: When folded, the front side panel folds inward and over the bottom panel, the rear side panel folds inward and over the front side panel, the left and right side panels fold in opposite directions and over the rear side panel, and the top cover covers the left and right side panels.

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