Plastic storage box with firm structure

Abstract

The plastic storage box comprises an outer box body, an inner box body, a supporting assembly, a box cover, a reinforcing component and a buckling assembly, the inner box body is installed in an opening of the outer box body, and the outer box body and the inner box body are connected in a reinforcing mode through the supporting assembly. A latticed structure formed by the transverse supporting rib plates and the longitudinal supporting rib plates can fill a gap between the outer box body and the inner box body, so that the possibility of deformation of the plastic storage box caused by impact or pressure in the using process is reduced, and the overall stability and the bearing capacity of the plastic storage box are improved; the grid reinforcing rib plates, the fan-shaped reinforcing rib plates and the rectangular frame plates can disperse force acting on the box cover to a wider area, so that local stress concentration is reduced, the rigidity and the strength of the box cover are improved, the box cover can bear larger loads and does not crack or deform, all parts of the plastic storage box are firm in structure, and the service life of the plastic storage box is prolonged. And all-around protection can be provided for articles in the plastic storage box.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic storage boxes, in particular to a plastic storage box with a firm structure. Background Art

[0002] Storage boxes are usually also called sorting boxes, storage boxes, sorting boxes, storage bins. The materials of storage boxes are diverse, usually including plastics, fabrics, papers, metals, woods, etc. They usually have the characteristics of lid-sealed, wheeled for easy movement, oil-resistant, non-toxic and odorless, easy to clean, neatly stacked, easy to manage, large load-bearing strength, stackable, space-saving, light weight, etc., and are applied in transportation, refrigeration, hardware, supermarkets, storage (vegetables, fruits), household use, turnover, sorting (documents, clothes, toys), etc.

[0003] Chinese Patent Publication No. CN210503570U discloses a new type of plastic storage box, which includes a box body and a lid covering the box body. A first load-bearing structure is formed on the box body, and the first load-bearing structure is formed to protrude and extend from the bottom edge of the box body towards its interior. A second load-bearing structure is provided on the lid. Since the first load-bearing structure is formed by the bottom of the box body protruding inwards, there is no need to additionally add materials to make the load-bearing structure, which saves materials and is beautiful. The load-bearing structure on the lid can overcome the problem of damaging the lid of the bottom storage box when stacking storage boxes in the prior art.

[0004] The first load-bearing structure and the second load-bearing structure in the above technology can only locally enhance the load-bearing capacity of the plastic storage box, and the plastic storage box is a single-layer structure. To ensure the structural strength, its wall thickness is designed wide, which increases the self-weight of the plastic storage box and causes waste of raw materials. Therefore, the utility model provides a plastic storage box with a firm structure to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a plastic storage box with a firm structure to solve the problem that the traditional plastic storage box is a single-layer structure. To ensure the structural strength, its wall thickness is designed wide, which increases the self-weight of the plastic storage box and causes waste of raw materials as mentioned in the above background art.

[0006] To achieve the above purpose, the solution of the utility model to solve the above technical problems is as follows:

[0007] A plastic storage box with a firm structure includes an outer box body, an inner box body, a support assembly, a box lid, a strengthening member and a fastening assembly. The inner box body is installed in the open mouth of the outer box body. The outer box body and the inner box body are fixedly connected and reinforced through the support assembly. The box lid is installed on the upper side of the inner box body. A strengthening member is arranged on the side of the box lid facing the inner box body. The strengthening member abuts against the inner box body, and both ends between the outer box body and the box lid are connected through the fastening assembly.

[0008] As a further solution of the present utility model, the support assembly includes a transverse support rib plate and a longitudinal support rib plate. Both the transverse support rib plate and the longitudinal support rib plate are in a "concave" shape structure. Among them, the structure of the transverse support rib plate is consistent with the transverse cross-sectional structure between the outer box body and the inner box body, and the structure of the longitudinal support rib plate is consistent with the longitudinal cross-sectional structure between the outer box body and the inner box body.

[0009] As a further solution of the present utility model, the transverse support rib plate and the longitudinal support rib plate intersect with each other to form a grid-like structure. A plurality of lower notches are opened on the lower side of the transverse support rib plate, and a plurality of upper notches are opened on the upper side of the longitudinal support rib plate. The adjacent lower notches and upper notches are inserted in a butt joint manner.

[0010] As a further solution of the present utility model, the strengthening member is composed of a rectangular frame plate, a grid strengthening rib plate and a sector strengthening rib plate. The grid strengthening rib plate is located inside the rectangular frame plate. Both the rectangular frame plate and the grid strengthening rib plate are fixed on the side of the box cover facing the inner box body. Among them, the rectangular frame plate is adapted to the open structure of the inner box body, and a sector strengthening rib plate is fixedly connected between the edge of the grid strengthening rib plate and the rectangular frame plate.

[0011] As a further solution of the present utility model, a hem is fixed on the outer edge of the open mouth of the inner box body, and a surrounding edge is fixed at the edge of the box cover. A slot for accommodating the hem is formed between the surrounding edge and the rectangular frame plate.

[0012] As a further solution of the present utility model, a plurality of card slots are opened on the four sides of the outer box body. A plurality of card blocks are arranged on the hem corresponding to the card slots. The cross section of each card block is in a right triangle structure.

[0013] As a further solution of the present utility model, the fastening assembly includes a hook plate fixed on the end face of the surrounding edge and a connecting plate fixed on the side face of the outer box body. A hanging ring is rotatably connected between the two side walls of the connecting plate. One end of the hanging ring far away from the connecting plate is buckled and connected with the hook plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The structurally robust plastic storage box. The grid-like structure formed by the horizontal support rib plates and the vertical support rib plates can fill the gap between the outer box body and the inner box body, reducing the possibility of deformation of the plastic storage box caused by impacts or pressures during use, improving the overall stability and load-bearing capacity of the plastic storage box. The grid reinforcing rib plates, fan-shaped reinforcing rib plates, and rectangular frame plates can disperse the force acting on the box cover to a wider area, thereby reducing local stress concentration, improving the stiffness and strength of the box cover, enabling the box cover to withstand greater loads without cracking or deforming, making all parts of the plastic storage box structurally firm, and providing all-round protection for the items inside the plastic storage box;

[0016] 2. The plastic storage box is precisely assembled from an outer box body, an inner box body, and the horizontal support rib plates and vertical support rib plates between them. The grid-like structure design helps to disperse the load-bearing weight, enabling the plastic storage box to safely store heavier items. The assembled structure reduces the material usage for separately producing thickened plastic storage boxes, enabling the plastic storage box to reduce production costs while ensuring the structural firmness, reducing the weight and transportation burden of the plastic storage box, achieving multiple benefits at once. Description of the Drawings

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0018] Figure 1 It is a side view of a structurally robust plastic storage box of the present utility model;

[0019] Figure 2 It is a front cross-sectional view of a structurally robust plastic storage box of the present utility model;

[0020] Figure 3 It is a side cross-sectional view of a structurally robust plastic storage box of the present utility model;

[0021] Figure 4 It is a structural diagram of the horizontal support rib plates in a structurally robust plastic storage box of the present utility model;

[0022] Figure 5 It is a structural diagram of the vertical support rib plates in a structurally robust plastic storage box of the present utility model;

[0023] Figure 6 It is an enlarged structural view of part A in a structurally robust plastic storage box of the present utility model Figure 2 in the attached drawing.

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Outer box body; 2. Inner box body; 3. Support assembly; 4. Box cover; 5. Reinforcing member; 6. Clamping assembly; 11. Card slot; 21. Hem; 22. Block; 31. Transverse support rib plate; 32. Longitudinal support rib plate; 33. Lower notch; 34. Upper notch; 41. Perimeter; 51. Rectangular frame plate; 52. Mesh reinforcing rib plate; 53. Sector reinforcing rib plate; 61. Hook plate; 62. Connecting plate; 63. Hanging ring. Detailed implementation manners

[0026] The following further describes the present utility model in conjunction with embodiments.

[0027] Please refer to Figures 1-6 , the present utility model provides a plastic storage box with a firm structure, including an outer box body 1, an inner box body 2, a support assembly 3, a box cover 4, a reinforcing member 5 and a clamping assembly 6. The inner box body 2 is installed in the open mouth of the outer box body 1. The outer box body 1 and the inner box body 2 are firmly connected through the support assembly 3. A plurality of card slots 11 are opened on four sides of the outer box body 1. A plurality of blocks 22 corresponding to the card slots 11 are arranged on the hem 21. The cross sections of the blocks 22 are all in a right triangle structure;

[0028] Specifically, when assembling the outer box body 1 and the inner box body 2, the inner box body 2 is vertically inserted into the open mouth of the outer box body 1. The inclined side of the block 22 is squeezed, causing the inner box body 2 to deform. Until the block 22 is aligned with the card slot 11, under the elastic action of the inner box body 2, the block 22 is embedded in the card slot 11. The right triangle-structured block 22 can provide a good mechanical interlocking effect when inserted into the card slot 11, preventing the separation of the outer box body 1 and the inner box body 2 and increasing the structural stability of the plastic storage box.

[0029] Furthermore, the support assembly 3 includes a transverse support rib plate 31 and a longitudinal support rib plate 32. Both the transverse support rib plate 31 and the longitudinal support rib plate 32 are in a "concave" shape structure. Among them, the structure of the transverse support rib plate 31 is consistent with the transverse cross-sectional structure between the outer box body 1 and the inner box body 2, and the structure of the longitudinal support rib plate 32 is consistent with the longitudinal cross-sectional structure between the outer box body 1 and the inner box body 2;

[0030] Specifically, the "concave" shaped transverse support rib plate 31 and longitudinal support rib plate 32 can be better embedded into the open mouth of the outer box body 1, providing a better support effect. This structure not only helps to improve the overall structural stability, but also can reduce deformation or damage caused by external forces, enabling the plastic storage box to reduce production costs while ensuring the structural firmness, reducing the weight and transportation burden of the plastic storage box, achieving multiple benefits at once.

[0031] Further, the transverse support rib plates 31 and the longitudinal support rib plates 32 intersect with each other to form a grid-like structure. A plurality of lower notches 33 are formed on the lower side of the transverse support rib plates 31, and a plurality of upper notches 34 are formed on the upper side of the longitudinal support rib plates 32. The adjacent lower notches 33 and upper notches 34 are inserted into each other in a butt-joint manner.

[0032] Specifically, the transverse support rib plates 31 and the longitudinal support rib plates 32 are arranged in an intersecting manner to form a stable grid-like structure. This structure can effectively disperse and bear the forces acting on the plastic storage box, improving the overall load-bearing capacity and stability. The design of the notches increases the connection points between the transverse support rib plates 31 and the longitudinal support rib plates 32, enabling both the transverse support rib plates 31 and the longitudinal support rib plates 32 to be effectively stressed, ensuring the tight combination between the transverse support rib plates 31 and the longitudinal support rib plates 32, eliminating the need for additional bonding or fixing, simplifying the assembly process, and improving production efficiency.

[0033] Further, a box cover 4 is installed on the upper side of the inner box body 2. A hem 21 is fixed on the outer edge of the open mouth of the inner box body 2. A surrounding edge 41 is fixed at the edge of the box cover 4. A slot for accommodating the hem 21 is formed between the surrounding edge 41 and the rectangular frame plate 51.

[0034] Specifically, the design of the slot allows for a clear guiding when the hem 21 is inserted, ensuring that the box cover 4 can be accurately and firmly placed within the open mouth of the inner box body 2, simplifying the assembly process. The tight fit between the box cover 4 and the inner box body 2 helps to ensure the sealing between the box cover 4 and the inner box body 2, preventing water from entering the plastic storage box, and can also improve the stability and durability of the entire plastic storage box.

[0035] Further, a strengthening member 5 is provided on the side of the box cover 4 facing the inner box body 2. The strengthening member 5 abuts against the inner box body 2. The strengthening member 5 is composed of a rectangular frame plate 51, grid strengthening rib plates 52, and fan-shaped strengthening rib plates 53. The grid strengthening rib plates 52 are located within the rectangular frame plate 51. Both the rectangular frame plate 51 and the grid strengthening rib plates 52 are fixed on the side of the box cover 4 facing the inner box body 2. Among them, the rectangular frame plate 51 is adapted to the open-mouth structure of the inner box body 2, and fan-shaped strengthening rib plates 53 are fixedly connected between the edges of the grid strengthening rib plates 52 and the rectangular frame plate 51.

[0036] Specifically, the design of the rectangular frame plate 51 facilitates the insertion of the box cover 4 into the open mouth of the inner box body 2. The grid strengthening rib plates 52 enhance the rigidity of the box cover 4 by providing additional support, thereby improving its load-bearing capacity. The grid-like design helps to disperse the forces acting on the box cover 4, reducing local stress concentration. The shape of the fan-shaped strengthening rib plates 53 helps to further enhance the structural stability of the box cover 4, especially in the corner areas of the box cover 4, which are more prone to deformation when subjected to pressure.

[0037] Furthermore, both ends of the outer box body 1 and the box cover 4 are connected by a buckle assembly 6, and the buckle assembly 6 includes a hook plate 61 fixed on the end surface of the surrounding edge 41 and a connecting plate 62 fixedly connected to the side surface of the outer box body 1, and a hanging ring 63 is rotatably connected between the two side walls of the connecting plate 62, and the end of the hanging ring 63 away from the connecting plate 62 is buckled and connected to the hook plate 61;

[0038] Specifically, the two snap-fit ​​components 6 are symmetrically distributed on both sides of the plastic storage box. After being snapped together, the structure is stable and easy to carry. The hanging ring 63 is lifted up and snap-fitted with the hook plate 61, which can prevent items from being scattered and facilitate the classification of items. Conversely, the hanging ring 63 is lifted outward and the hanging ring 63 is separated from the hook plate 61, so that the box cover 4 can be opened to facilitate taking out the items in the plastic storage box.

[0039] Working principle:

[0040] Before use, the items are stacked in the inner box body 2. After closing the box cover 4, the hanging ring 63 is lifted up and snapped into the hook plate 61 to prevent the items from scattering and facilitate the classification of items. During use, the transverse supporting ribs 31 and the longitudinal supporting ribs 32 effectively support the gap between the outer box body 1 and the inner box body 2, so that external force is not easy to cause deformation of the plastic storage box. The grid reinforcing ribs 52, the fan-shaped reinforcing ribs 53, and the rectangular frame plates 51 can transfer stress to the side walls of the inner box body 2, which can prevent the box cover 4 from being broken due to excessive force, greatly improving the all-round load capacity of the plastic storage box.

Claims

1. A plastic storage box with a strong structure, characterized in that: The invention comprises an outer box (1), an inner box (2), a support assembly (3), a box cover (4), a reinforcing member (5) and a buckle assembly (6); the inner box (2) is installed in the opening of the outer box (1); the outer box (1) and the inner box (2) are reinforced and connected via the support assembly (3); the upper side of the inner box (2) is installed with a box cover (4); a reinforcing member (5) is provided on the side of the box cover (4) facing the inner box (2); the reinforcing member (5) is in contact with the inner box (2); and both ends of the outer box (1) and the box cover (4) are connected via the buckle assembly (6).

2. A structurally strong plastic storage box according to claim 1, characterized in that: The support assembly (3) comprises a transverse support rib plate (31) and a longitudinal support rib plate (32), wherein the transverse support rib plate (31) and the longitudinal support rib plate (32) both present a "concave"-shaped structure, wherein the structure of the transverse support rib plate (31) is consistent with the transverse cross-sectional structure between the outer box body (1) and the inner box body (2), and the structure of the longitudinal support rib plate (32) is consistent with the longitudinal cross-sectional structure between the outer box body (1) and the inner box body (2).

3. A structurally strong plastic storage box according to claim 2, characterized in that: The transverse supporting ribs (31) and the longitudinal supporting ribs (32) are interlaced to form a grid-like structure; a plurality of lower notches (33) are provided on the lower side of the transverse supporting ribs (31); a plurality of upper notches (34) are provided on the upper side of the longitudinal supporting ribs (32); and adjacent lower notches (33) and upper notches (34) are aligned and plugged in.

4. A structurally strong plastic storage box according to claim 1, characterized in that: The reinforcing member (5) is composed of a rectangular frame plate (51), a grid reinforcing rib plate (52) and a fan-shaped reinforcing rib plate (53); the grid reinforcing rib plate (52) is located inside the rectangular frame plate (51); the rectangular frame plate (51) and the grid reinforcing rib plate (52) are both fixed on a side of the box cover (4) facing the inner box body (2); the rectangular frame plate (51) is compatible with the open structure of the inner box body (2); and the fan-shaped reinforcing rib plate (53) is fixedly connected between the edge of the grid reinforcing rib plate (52) and the rectangular frame plate (51).

5. A structurally strong plastic storage box according to claim 4, characterized in that: A folded edge (21) is fixed to the open outer edge of the inner box body (2), a peripheral edge (41) is fixed to the edge of the box cover (4), and a slot for accommodating the folded edge (21) is formed between the peripheral edge (41) and the rectangular frame plate (51).

6. A structurally strong plastic storage box according to claim 5, characterized in that: The outer box body (1) is provided with a plurality of card slots (11) on four sides, and a plurality of card blocks (22) are provided on the folded edge (21) corresponding to the card slots (11), and the cross-sections of the card blocks (22) are all in a right-angled triangle structure.

7. A structurally strong plastic storage box according to claim 5, characterized in that: The buckling assembly (6) comprises a hook plate (61) fixed on the end surface of the surrounding edge (41) and a connecting plate (62) fixedly connected to the side surface of the outer box body (1), and a hanging ring (63) is rotatably connected between the two side walls of the connecting plate (62), and the end of the hanging ring (63) away from the connecting plate (62) is buckled and connected to the hook plate (61).

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