Corrugated paper box convenient to fold

The design of the inverted U-shaped connecting hook and Velcro fastener solves the problem of laborious folding of corrugated cardboard boxes, enabling convenient unfolding and folding and improving the user experience.

CN223778781UActive Publication Date: 2026-01-09义乌家树彩印包装有限公司
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Patent Information

Application Number
CN202520529163.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-01-09
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

Increasing the thickness of corrugated paper to improve strength and water resistance has increased the folding resistance of existing corrugated cardboard boxes, making bottom forming and disassembly difficult and affecting user experience.

Method used

The design employs an inverted U-shaped connecting hook and Velcro fastener. The combination of the support plate on the connecting hook and the fastener allows for easy unfolding and folding of the cardboard box. The support plate fixes the base plate in a horizontal position, and the separation of the fastener enables folding.

Benefits of technology

The cardboard box is easy to unfold and fold, improving the user experience. The design of the connecting hooks and adhesives does not affect the unfolding of the base plate and facilitates subsequent use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a corrugated paper box convenient to fold, which comprises a box body, the box body comprises a first side plate, a second side plate, a third side plate and a fourth side plate, the bottom edge of the second side plate is connected with a bottom plate, the bottoms of the first side plate, the third side plate and the fourth side plate are respectively provided with a plurality of connecting holes, the left side edge of the first side plate is provided with a first bonding piece, and the right side edge of the second side plate is provided with a second bonding piece. A second bonding piece is arranged on the right side edge of the fourth side plate, and the first bonding piece and the second bonding piece are bonded with each other; and the connecting hooks are inserted into the connecting holes, supporting plates are rotationally connected to the inner side faces of the connecting hooks, and the free side edges of the bottom plate abut against the supporting plates. When the paper box is formed, the first bonding piece and the second bonding piece are bonded, then the supporting plate on the connecting hook is turned to be horizontal, and finally the bottom plate abuts against the supporting plate. When the box body is folded, the first bonding piece and the second bonding piece are separated, the box body can be folded, forming and disassembling of the paper box are very convenient, and therefore the use experience of a user is improved.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard boxes, and in particular to a corrugated cardboard box that is easy to fold. Background Technology

[0002] In daily office work, corrugated cardboard boxes are used to store documents. Existing boxes are made stronger and more waterproof by increasing the thickness of the corrugated cardboard and bonding kraft paper to the surface. While this increases structural strength, it also increases the resistance to folding the box. The bottom of the box is formed by four intersecting base plates. With the increased cardboard thickness, folding and disassembling the bottom of the box becomes very difficult, affecting the user experience. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a corrugated cardboard box that is easy to fold.

[0004] The technical solution adopted by this utility model is: a corrugated cardboard box that is easy to fold, comprising:

[0005] The box body includes a first side plate, a second side plate, a third side plate, and a fourth side plate. A bottom plate is connected to the bottom edge of the second side plate. The bottom of the first side plate, the third side plate, and the fourth side plate are respectively provided with a plurality of connecting holes. A first adhesive component is provided on the left side of the first side plate, and a second adhesive component is provided on the right side of the fourth side plate. The first adhesive component and the second adhesive component are bonded to each other.

[0006] Several connecting hooks are provided, each in an inverted U-shape, and are inserted into the connecting holes. A support plate is rotatably connected to the inner side of each connecting hook, and the free side of the base plate abuts against the support plate.

[0007] Furthermore, an adhesive plate is provided on the left side of the first side panel, and the first adhesive component is fixed to the adhesive plate. The first adhesive component and the second adhesive component are Velcro that are bonded to each other.

[0008] Furthermore, an extension plate is provided between the second side plate and the bottom plate, and a reinforcing plate is provided on the unused side of the bottom plate.

[0009] Furthermore, the inner side of the connecting hook is provided with a rotating boss, the rotating boss is provided with a rotating hole, the support plate is provided with a relief groove, the two side walls of the relief groove are provided with shaft holes, the rotating boss is located in the relief groove, and the shaft hole is provided with a rotating shaft that passes through the rotating hole.

[0010] Compared with the prior art, this utility model has the following beneficial effects:

[0011] When unfolding the cardboard box of this utility model, firstly, the first and second adhesive parts are glued together, then the support plate on the connecting hook in the connecting hole is flipped to the horizontal, and finally the bottom plate is pressed against the support plate to complete the process. When folding the box, the first and second adhesive parts are separated to fold the box. The forming and folding of the cardboard box are very convenient, thereby improving the user experience. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the box body's flat structure according to this utility model;

[0014] Figure 2 This is a schematic diagram of the box body in the open state of this utility model;

[0015] Figure 3 This is a schematic diagram of the closed state structure of the box body of this utility model;

[0016] Figure 4 This is a schematic diagram of the connecting hook structure of this utility model;

[0017] The utility model reference information is as follows:

[0018] 1. Box body; 11. First side plate; 111. First adhesive component; 112. Adhesive plate; 12. Second side plate; 13. Third side plate; 14. Fourth side plate; 141. Second adhesive component; 15. Base plate; 151. Extension plate; 152. Reinforcing plate; 16. Connecting hole; 2. Connecting hook; 21. Support plate; 211. Relief groove; 212. Rotating shaft hole; 22. Rotating boss; 221. Rotating hole;

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model proposes a foldable corrugated cardboard box, including a box body 1, see reference. Figure 1 The box body 1 includes a first side plate 11, a second side plate 12, a third side plate 13, and a fourth side plate 14. A bottom plate 15 is connected to the bottom edge of the second side plate 12. The four side plates and the bottom plate 15 are formed by cutting a piece of cardboard. There are creases between adjacent plates. The bottom of the first side plate 11, the third side plate 13, and the fourth side plate 14 are respectively provided with a plurality of connecting holes 16. A first adhesive component 111 is provided on the left side of the first side plate 11, and a second adhesive component 141 is provided on the right side of the fourth side plate 14. The box body 1 is formed by bonding the first adhesive component 111 and the second adhesive component 141.

[0022] Several connecting hooks 2, the connecting hooks 2 being inverted U-shaped, see reference. Figure 2 The connecting hook 2 is inserted into the connecting hole 16. A support plate 21 is rotatably connected to the inner side of the connecting hook 2. After the box body 1 is formed, the support plate 21 is rotated to a horizontal position and kept fixed. Then, the bottom plate 15 is folded downwards so that its free side rests against the support plate 21, thus completing the unfolding of the corrugated cardboard box. When folding is required, the first adhesive piece 111 and the second adhesive piece 141 are separated, and the box body 1 can be fully unfolded. The support plate 21 is rotated to fit against the connecting hook 2, and the side plates and the bottom plate 15 are folded along the creases to complete the storage. The operation is very convenient. The connecting hook 2 only needs to be assembled onto the box body during the first use and does not need to be removed for subsequent folding, making it convenient for subsequent use.

[0023] See Figure 1 An adhesive plate 112 is provided on the left side of the first side panel 11. The first adhesive component 111 is fixed on the adhesive plate 112. When the box body 1 is closed, the adhesive plate 112 is located inside the box body 1. The first adhesive component 111 and the second adhesive component 141 are Velcro that are glued to each other.

[0024] See Figure 1 An extension plate 151 is provided between the second side plate 12 and the bottom plate 15. When folding the paper box, the extension plate 151 and the bottom plate 15 are first folded together into the box body 1, and then the bottom plate 15 is folded to a horizontal position. The specific shape is shown in the figure. There can be a certain gap between the bottom plate 15 and the bottom of the box body 1. This gap is used to accommodate the support plate 21. At the same time, a reinforcing plate 152 is provided on the free side of the bottom plate 15. The reinforcing plate 152 can be folded to a state perpendicular to the bottom plate 15. The reinforcing plate 152 is used to improve the deformation resistance of the edge of the bottom plate 15, so as to improve the overall load-bearing capacity of the paper box.

[0025] See Figure 4The inner side of the connecting hook 2 is provided with a rotating boss 22, and the rotating boss 22 is provided with a rotating hole 221. The support plate 21 is provided with a relief groove 211, and the two side walls of the relief groove 211 are provided with pivot holes 212. The rotating boss 22 is located in the relief groove 211, and a rotating shaft passing through the rotating hole 221 is provided in the pivot hole 212. Figure 3 As shown, after the support plate 21 rotates to a horizontal position, its inner wall abuts against the connecting hook 2, thereby maintaining a stable horizontal state. Rounded corners can be provided on the sides of the support plate 21 to facilitate its rotation. In actual products, the connecting hook 2 is made of bent iron sheet, with a relatively small thickness, and will not affect the unfolding of the base plate 15. The rotating boss 22 can be fixed by welding or other methods, and the material of the support plate 21 can be selected based on factors such as cost.

[0026] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

Claims

1. A foldable corrugated cardboard box, characterized in that: include The box body includes a first side plate, a second side plate, a third side plate, and a fourth side plate. A bottom plate is connected to the bottom edge of the second side plate. The bottom of the first side plate, the third side plate, and the fourth side plate are respectively provided with a plurality of connecting holes. A first adhesive component is provided on the left side of the first side plate, and a second adhesive component is provided on the right side of the fourth side plate. The first adhesive component and the second adhesive component are bonded to each other. Several connecting hooks are provided, each in an inverted U-shape, and are inserted into the connecting holes. A support plate is rotatably connected to the inner side of each connecting hook, and the free side of the base plate abuts against the support plate.

2. The foldable corrugated cardboard box according to claim 1, characterized in that: An adhesive plate is provided on the left side of the first side panel, and the first adhesive component is fixed on the adhesive plate. The first adhesive component and the second adhesive component are Velcro that are bonded to each other.

3. A foldable corrugated cardboard box according to claim 1, characterized in that: An extension plate is provided between the second side plate and the bottom plate, and a reinforcing plate is provided on the unused side of the bottom plate.

4. A foldable corrugated cardboard box according to claim 1, characterized in that: The inner side of the connecting hook is provided with a rotating boss, the rotating boss is provided with a rotating hole, the support plate is provided with a relief groove, the two side walls of the relief groove are provided with a pivot hole, the rotating boss is located in the relief groove, and a rotating shaft is provided in the pivot hole through the rotating hole.