Folding storage box

Abstract

The utility model belongs to the technical field of storage devices, and relates to a folding storage box which comprises a bottom plate, a cover plate and frame plates on the side edges, the frame plates comprise a front frame plate, a rear frame plate, a lower frame plate and an upper frame plate which can be folded inwards, and a first locking structure matched for locking is arranged between the lower frame plate and the upper frame plate. A first locking structure for matched locking is arranged between the upper / lower frame plate and the front / rear frame plate, a second locking structure for matched locking is arranged between the upper / lower frame plate and the front / rear frame plate, the first locking structure comprises a locking convex seat and a locking concave seat, a hinge shaft is arranged on the outer side of the locking convex seat, a hinge hole is formed in the inner side of the locking concave seat, the hinge shaft is inserted into the hinge hole to form a hinge structure, and the hinge structure is connected with the upper / lower frame plate. A locking block extending in the direction of the locking concave base is arranged at the end of the locking convex base, and a locking groove matched with the locking block for locking is formed in the locking concave base. The folding storage box has the advantages of being simple in structure, stable in supporting and convenient to use.

Description

Technical Field

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

[0002] In modern home furnishings, folding storage boxes are widely used due to their foldable nature, which reduces space occupation when not in use. Existing folding storage boxes typically consist of a base, a lid, and side frames, each hinged to fold inwards for storage. However, hinged frames lack a supporting structure when unfolded, making them unstable to use.

[0003] Chinese utility model patent CN221083077U discloses a folding shoe cabinet, including a cabinet body. The cabinet body includes a top panel, a bottom panel, a side panel, and a back panel. The side panels are hinged to the top panel and / or the bottom panel, and the back panel is hinged to the top panel or the bottom panel, so that the side panels and the back panel can be folded toward the inside of the cabinet body. An integrally formed support member is rotatably connected to the side panel. The pivot of the support member is perpendicular to the side panel. When the support member is rotated to the vertical direction, it supports the side panel and the cabinet body. The upper and lower sides of the inside of the cabinet body are respectively provided with positioning grooves that cooperate with the two ends of the support member for support and positioning.

[0004] The aforementioned folding shoe cabinet requires additional support components to support the hinged frame, which also makes the unfolding and folding process more cumbersome and results in a poor user experience. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a folding storage box, which has the advantages of simple structure, stable support, and convenient use.

[0006] To solve the above-mentioned technical problems, the objective of this utility model is achieved through the following technical solution:

[0007] A folding storage box includes a base plate, a cover plate, and side frame plates. A front frame plate and a rear frame plate, which can be folded inwards, are hinged to the front and rear sides of the base plate. A pair of lower frame plates are hinged to the left and right sides of the base plate. A pair of upper frame plates are hinged to the left and right sides of the cover plate. The lower frame plates are hinged to the upper frame plates and can be folded inwards. A first locking structure is provided between the lower and upper frame plates for locking. A second locking structure is provided between the upper / lower frame plates and the front / rear frame plates for locking. The first locking structure includes a locking convex seat and a locking concave seat. A hinge shaft is provided on the outer side of the locking convex seat, and a hinge hole is provided on the inner side of the locking concave seat. The hinge shaft is inserted into the hinge hole to form a hinge structure. A locking block extending towards the locking concave seat is provided at the end of the locking convex seat. A locking groove that engages with the locking block is provided in the locking concave seat.

[0008] In the aforementioned folding storage box, a guide hole is provided inside the hinge hole, which penetrates the locking concave seat inward. The diameter of the guide hole gradually increases from the outside to the inside. The outer end diameter of the guide hole is smaller than the radial dimension of the hinge shaft, and the inner end diameter is larger than the radial dimension of the hinge shaft. Preferably, the bottom of the guide hole and the bottom of the hinge hole are located on the same plane.

[0009] In the aforementioned folding storage box, a protrusion is provided on the inner side of the locking concave seat, and the locking groove is opened on the protrusion and passes through the protrusion vertically. When the locking block is engaged in the locking groove, the protrusions on both sides of the locking groove undergo elastic deformation and clamp the locking block.

[0010] In the aforementioned folding storage box, the cross-section of the locking groove is an arc shape larger than a semicircle, the locking block is adapted to the shape of the locking groove, and the radial dimension of the locking block is larger than the opening size of the locking groove.

[0011] In the aforementioned folding storage box, the locking concave seat is integrally formed with the upper frame plate, and the locking convex seat is integrally formed with the lower frame plate.

[0012] In the aforementioned folding storage box, both the front and rear frame panels are rectangular, and the upper and lower frame panels are combined to form a rectangular frame.

[0013] In the aforementioned folding storage box, multiple first locking structures are provided. Preferably, the first locking structures are symmetrically arranged on the front and rear sides of the lower frame plate and the upper frame plate.

[0014] In the aforementioned folding storage box, the second locking structure includes a slot and a locking head disposed at the junction of the frame plates. The slot is disposed on the front frame plate or the rear frame plate, and the locking head is disposed on the lower frame plate or the upper frame plate. The locking head is detachably engaged and fixed to the slot.

[0015] In the aforementioned folding storage box, the outer edge of the bottom plate is provided with an upward-turning flange, the outer edge of the cover plate is provided with a downward-turning flange, the lower frame plate, the front frame plate and the rear frame plate are hinged to the inner side of the upward-turning flange, the upper frame plate is hinged to the inner side of the downward-turning flange, and the upper ends of the front frame plate and the rear frame plate are in contact with the inner top of the cover plate when unfolded.

[0016] In the aforementioned folding storage box, when folded, the upper and lower folding edges abut against each other, and the bottom plate, cover plate, upper and lower folding edges form a closed storage cavity, with all frame plates located within the storage cavity; the front and rear frame plates have different hinge heights.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] This invention provides a folding storage box. When unfolded, the upper and lower frame plates are locked by a first locking structure, and the upper / lower frame plates are locked to the front / rear frame plates by a second locking structure. Without the use of additional support structures, the hinged structures between the frame plates can also form a stable unfolded structure. This invention further utilizes a specific first locking structure that locks simultaneously when the upper and lower frame plates are unfolded, which is very convenient. This invention has the advantages of simple structure, stable support, and ease of use. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 yes Figure 1 Enlarged view of point A;

[0021] Figure 3 This is an exploded view of this utility model;

[0022] Figure 4 yes Figure 3 Enlarged view of point B;

[0023] Figure 5 yes Figure 3 Enlarged view of point C;

[0024] Reference numerals: 1. Base plate; 2. Cover plate; 3. Front frame plate; 4. Rear frame plate; 5. Lower frame plate; 6. Upper frame plate; 7. First locking structure; 8. Second locking structure; 9. Locking convex seat; 10. Locking concave seat; 11. Hinge shaft; 12. Hinge hole; 13. Locking block; 14. Locking groove; 15. Guide hole; 16. Protrusion; 17. Slot; 18. Clip head; 19. Upper flange; 20. Lower flange. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-5 :

[0026] A folding storage box includes a base plate 1, a cover plate 2, and side frame plates. In this embodiment, the frame plates include a front frame plate 3, a rear frame plate 4, an upper frame plate 6, and a lower frame plate 5 that can be folded inward. The connection structure is as follows: the front frame plate 3 and the rear frame plate 4 that can be folded inward are hinged to the front and rear sides of the base plate 1; a pair of lower frame plates 5 are hinged to the left and right sides of the base plate 1; a pair of upper frame plates 6 are hinged to the left and right sides of the cover plate 2; and the lower frame plates 5 are hinged to the upper frame plates 6 and can be folded inward. When folding, first fold the front frame 3 and the rear frame 4 inward around their hinge axis 11, then fold the upper frame 6 and the lower frame 5 inward around their hinge axis 11 (including the hinge axis 11 with the bottom plate 1 / cover plate 2, and also the hinge axis 11 between the two). During the inward folding of the upper frame 6 and the lower frame 5, the cover plate 2 moves downward accordingly. After the upper frame 6 and the lower frame 5 are folded, the cover plate 2 descends to the lowest position to complete the folding of the entire storage box. When unfolding, simply reverse the operation.

[0027] Comparison Appendix Figure 1 and attached Figure 3 This utility model provides support for the unfolded state of the storage box through a locking structure. Specifically: a first locking structure 7 is provided between the lower frame plate 5 and the upper frame plate 6 for locking, and a second locking structure 8 is provided between the upper / lower frame plate 5 and the front / rear frame plate 4 for locking. During the unfolding of the lower frame plate 5 and the upper frame plate 6, they are pushed outward at the hinge axis 11. When the lower frame plate 5 and the upper frame plate 6 are pushed to the same plane, the first locking structure 7 locks the lower frame plate 5 and the upper frame plate 6. When folding is required, they are pushed inward at the hinge axis 11 to release the locking of the first locking structure 7. During the unfolding of the front frame plate 3 / rear frame plate 4, when the front frame plate 3 / rear frame plate 4 moves to the vertical direction, the second locking structure 8 locks the upper / lower frame plate with the front / rear frame plate. When folding is required, the front frame plate 3 / rear frame plate 4 is pushed inward to release the locking of the second locking structure 8.

[0028] Comparison Appendix Figure 2 and attached Figure 4 In this embodiment, the first locking structure 7 includes a locking convex seat 9 and a locking concave seat 10. The outer side of the locking convex seat 9 is provided with a hinge shaft 11, and the inner side of the locking concave seat 10 is provided with a hinge hole 12. The hinge shaft 11 is inserted into the hinge hole 12 to form a hinge structure. The end of the locking convex seat 9 is provided with a locking block 13, and the locking concave seat 10 is provided with a locking groove 14 that cooperates with the locking block 13 for locking. In this embodiment, the first locking structure 7 is simultaneously set on the hinge structure of the upper frame plate 6 and the lower frame plate 5. When the lower frame plate 5 and the upper frame plate 6 are pushed to move inward and outward, the locking block 13 can be inserted synchronously and interference-fitted in the locking groove 14 to form a locking structure.

[0029] Furthermore, to facilitate assembly and disassembly, a guide hole 15 is provided on the inner side of the hinge hole 12, which penetrates the locking concave seat 10 inward. The diameter of the guide hole 15 gradually increases from the outside to the inside. The outer end diameter of the guide hole 15 is smaller than the radial dimension of the hinge shaft 11, and the inner end diameter is larger than the radial dimension of the hinge shaft 11. Preferably, the bottom of the guide hole 15 and the bottom of the hinge hole 12 are located on the same plane.

[0030] Furthermore, the locking groove 14 in this embodiment is configured as follows: a protrusion 16 is provided on the inner side of the locking concave seat 10, the locking groove 14 is opened on the protrusion 16 and passes through the protrusion 16 vertically, and when the locking block 13 is inserted into the locking groove 14, the protrusions 16 on both sides of the locking groove 14 undergo elastic deformation and clamp the locking block 13.

[0031] Preferably, the cross-section of the locking groove 14 is an arc shape larger than a semicircle, and the shape of the locking block 13 is adapted to the locking groove 14. The radial dimension of the locking block 13 is larger than the opening size of the locking groove 14. When the locking block 13 moves toward the locking groove 14, the arc-shaped surface of the locking block 13 presses against the opening of the locking groove 14, causing the protrusions 16 on both sides to undergo elastic deformation until the locking block 13 enters the locking groove 14. After the locking block 13 enters the locking groove 14, the elastic deformation is restored and the locking block 13 is clamped.

[0032] Preferably, the locking concave seat 10 is integrally formed with the upper frame plate 6, and the locking convex seat 9 is integrally formed with the lower frame plate 5.

[0033] Preferably, the front frame plate 3 and the rear frame plate 4 are both rectangular frame plates, and the upper frame plate 6 and the lower frame plate 5 are combined to form a rectangular frame.

[0034] To achieve better locking balance, multiple first locking structures 7 are provided. Preferably, the first locking structures 7 are symmetrically arranged on the front and rear sides of the lower frame plate 5 and the upper frame plate 6.

[0035] Comparison Appendix Figure 5 In this embodiment, the second locking structure 8 includes a slot 17 and a locking head 18 disposed at the junction of the frame plates. The slot 17 is disposed on the front frame plate 3 or the rear frame plate 4, and the locking head 18 is disposed on the lower frame plate 5 or the upper frame plate 6. The locking head 18 is detachably engaged with the slot 17. When the front frame plate 3 / rear frame plate 4 is unfolded, the lower frame plate 5 and the upper frame plate 6 have already been unfolded and locked. During the unfolding process, the front frame plate 3 / rear frame plate 4 gradually moves closer to the lower frame plate 5 and the upper frame plate 6, and the slot 17 and the locking head 18 also move closer. By pressing the corresponding position of the slot 17 and the locking head 18, the locking head 18 can be engaged in the slot 17 to form a locking structure. When folding, pressing in the opposite direction can release the lock.

[0036] Furthermore, the outer edge of the base plate 1 is provided with an upward-facing flange 19, the outer edge of the cover plate 2 is provided with a downward-facing flange 20, the lower frame plate 5, the front frame plate 3 and the rear frame plate 4 are hinged to the inner side of the upward-facing flange 19, the upper frame plate 6 is hinged to the inner side of the downward-facing flange 20, and the upper ends of the front frame plate 3 and the rear frame plate 4 are in contact with the inner top of the cover plate 2 when unfolded.

[0037] In the folded state, the upper flange 19 and the lower flange 20 abut against each other, and the bottom plate 1, the cover plate 2, the upper flange 19 and the lower flange 20 form a closed storage cavity, and the frame plates are all located in the storage cavity; the front frame plate 3 and the rear frame plate 4 have different hinge heights, and the hinge height of the lower frame plate 5 is higher than that of the front frame plate 3 and the rear frame plate 4. When folding, the frame plate with the lower hinge height is folded first, and then the frame plate with the higher hinge height is folded; in the folded state, the storage box forms a flat rectangular box.

[0038] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A folding storage box, comprising a base plate (1), a cover plate (2), and side frame plates, wherein a front frame plate (3) and a rear frame plate (4) that can be folded inward are hinged to the front and rear sides of the base plate (1), a pair of lower frame plates (5) are hinged to the left and right sides of the base plate (1), and a pair of upper frame plates (6) are hinged to the left and right sides of the cover plate (2), wherein the lower frame plates (5) are hinged to the upper frame plates (6) and can be folded inward, characterized in that, A first locking structure (7) is provided between the upper frame plate (6) and the lower frame plate (5) for locking, and a second locking structure (8) is provided between the upper / lower frame plate and the front / rear frame plate for locking. The first locking structure (7) includes a locking convex seat (9) and a locking concave seat (10). A hinge shaft (11) is provided on the outer side of the locking convex seat (9), and a hinge hole (12) is provided on the inner side of the locking concave seat (10). The hinge shaft (11) is inserted into the hinge hole (12) to form a hinge structure. A locking block (13) is provided at the end of the locking convex seat (9), and a locking groove (14) is provided in the locking concave seat (10) for locking with the locking block (13).

2. A folding storage box according to claim 1, characterized in that, The inner side of the hinge hole (12) is provided with a guide hole (15) that penetrates the locking concave seat (10) inward. The diameter of the guide hole (15) gradually increases from the outside to the inside. The outer end diameter of the guide hole (15) is smaller than the radial dimension of the hinge shaft (11), and the inner end diameter is larger than the radial dimension of the hinge shaft (11).

3. A folding storage box according to claim 1, characterized in that, The inner side of the locking concave seat (10) is provided with a protrusion (16), and the locking groove (14) is opened on the protrusion (16) and passes through the protrusion (16) vertically. When the locking block (13) is inserted into the locking groove (14), the protrusions (16) on both sides of the locking groove (14) undergo elastic deformation and clamp the locking block (13).

4. A folding storage box according to claim 3, characterized in that, The cross-section of the locking groove (14) is an arc shape larger than a semicircle. The locking block (13) is adapted to the shape of the locking groove (14). The radial dimension of the locking block (13) is larger than the opening dimension of the locking groove (14).

5. A folding storage box according to claim 1, characterized in that, The first locking structure (7) is symmetrically arranged on the front and rear sides of the lower frame plate (5) and the upper frame plate (6).

6. A folding storage box according to claim 1, characterized in that, The second locking structure (8) includes a slot (17) and a locking head (18) disposed at the junction of the frame plates. The slot (17) is disposed on the front frame plate (3) or the rear frame plate (4), and the locking head (18) is disposed on the lower frame plate (5) or the upper frame plate (6). The locking head (18) is detachably locked to the slot (17).

7. A folding storage box according to claim 1, characterized in that, The outer edge of the base plate (1) is provided with an upward-facing flange (19), and the outer edge of the cover plate (2) is provided with a downward-facing flange (20). The lower frame plate (5), the front frame plate (3) and the rear frame plate (4) are hinged to the inner side of the upward flange (19), and the upper frame plate (6) is hinged to the inner side of the downward flange (20). When the front frame plate (3) and the rear frame plate (4) are unfolded, their upper ends are in contact with the inner top of the cover plate (2).

8. A folding storage box according to claim 7, characterized in that, When folded, the upper flange (19) and the lower flange (20) abut against each other, and the bottom plate (1), the cover plate (2), the upper flange (19) and the lower flange (20) form a closed storage cavity, and the frame plates are all located in the storage cavity; the front frame plate (3) and the rear frame plate (4) have different hinge heights, and the hinge height of the lower frame plate (5) is higher than that of the front frame plate (3) and the rear frame plate (4).

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