A corrugated carton corner anti-damage structure

By incorporating reinforcing plates, connecting ropes, and adjustable fixing plates at the corners of corrugated cardboard boxes, the problem of excessive stress on the corners during impact is solved, achieving better protection and stability.

CN224676867UActive Publication Date: 2026-08-25NINGBO RIHE NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202522020164.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-08-25
Estimated Expiration
2035-09-19

AI Technical Summary

Technical Problem

Existing anti-damage structures for corrugated cardboard boxes are prone to excessive stress when subjected to impact, leading to damage to the structure and corners, and it is difficult to adjust the angle to reduce the impact force.

Method used

The design incorporates a reinforced plate connecting to the box body, and enhances connection stability and angle adjustment capability through connecting ropes, anti-slip plates, and an adjustable fixing plate structure, while reducing impact force.

Benefits of technology

It effectively protects the edges and corners of corrugated cardboard boxes, reduces structural damage, improves stability and protection, and prevents reinforcing sheets from falling off or sliding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a corrugated carton corner anti -damage structure belongs to corrugated carton technical field, including box and reinforcing piece, the top corner of box is provided with reinforcing piece, and reinforcing piece is provided with 3 adhering edges, and adhering edge corresponds and adheres in the three sides of box, and the thickness of the two adhering edges connected with the side of box is gradually reduced from the connecting line of two adhering edges to the opposite side. The utility model solves the problem that the edge and corner of corrugated carton are only wrapped and thickened, when external force impacts the anti -damage structure, the angle of anti -damage structure can not be adjusted, so it will cause the stress of anti -damage structure to be larger, makes the edge and corner of anti -damage structure and corrugated carton easy to damage. The utility model adjusts the position of reinforcing piece to reduce the impact force of reinforcing piece, and the friction between reinforcing piece and box is improved by the stopper piece, and the stability of reinforcing piece is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box technology, specifically a structure for preventing damage to the edges and corners of corrugated cardboard boxes. Background Technology

[0002] Corrugated cardboard boxes are a common packaging product, effectively storing various objects and facilitating transportation. However, during use, damage to the edges and corners of corrugated cardboard boxes can cause deformation and render them unusable. To extend the lifespan and strength of corrugated cardboard boxes, anti-damage structures are needed to protect their edges and corners. However, general anti-damage structures have some drawbacks, such as: Typical damage protection structures simply reinforce the edges and corners of corrugated cardboard boxes. When an external force impacts the damage protection structure, because the angle of the structure cannot be adjusted, the structure will be subjected to greater stress, making both the structure and the edges and corners of the corrugated cardboard box susceptible to damage. Utility Model Content

[0003] The purpose of this utility model is to provide a corner protection structure for corrugated cardboard boxes, which can reduce the impact force on the protection structure, improve the protection effect, and solve the problems in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: including a box body and a reinforcing plate, wherein a reinforcing plate is provided at the top corner of the box body, and the reinforcing plate is provided with three fitting edges, which are fitted to the three sides of the box body respectively. The thickness of the two fitting edges connected to the side of the box body gradually decreases from the connecting line of the two fitting edges to the opposite side.

[0005] Preferably, the reinforcing sheet has a through hole at the top corner and two corresponding slots on its two sides, and the slots are connected to the interior of the through hole.

[0006] Preferably, a connecting rope is provided through the interior of the through hole and the slot, and the connecting rope is elastic.

[0007] Preferably, anti-slip pieces are provided at equal intervals on the inner sides of the two mating edges where the reinforcing piece connects to the side of the box body, and the anti-slip pieces are inclined toward the connecting side of the two mating edges.

[0008] Preferably, the inner side of the fitting edge where the reinforcing plate connects to the upper and lower ends of the box body is provided with a groove, and a fixing plate is rotatably connected inside the groove. A connecting mechanism is provided at the lower end of the fixing plate.

[0009] Preferably, the connecting mechanism includes a support rod, a support spring, a connecting rod, a screw, an adhesive plate, and adhesive. The support rod is disposed at the bottom of the fixed plate, and a support spring is disposed at the upper end of the support rod. The lower end of the support rod is penetrated by the connecting rod, and a screw is disposed at the lower end of the connecting rod. An adhesive plate is connected to the outer side of the screw, and the lower end of the adhesive plate is frustoconical. Adhesive is disposed on the lower surface of the adhesive plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention fixes the box body and reinforcing plate by connecting the adhesive to the box body, and adjusts the position of the bonding plate by sliding the support rod and connecting rod, so that the bonding plate at different positions can effectively fit the box body. When the reinforcing plate is in use, it can rotate with the fixing plate, thereby fine-tuning the position of the reinforcing plate and reducing the impact force on the reinforcing plate. Furthermore, the anti-slip plate can increase the friction between the reinforcing plate and the box body, further improving the stability of the reinforcing plate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the installation structure of the housing and reinforcing plate of this utility model; Figure 2 This is a schematic diagram of the three-dimensional structure of the reinforcing sheet of this utility model; Figure 3 This is a schematic diagram of the reinforcing plate and through-hole mounting structure of this utility model; Figure 4 This is a schematic diagram of the connection structure between the support rod and the bonding plate of this utility model.

[0012] In the diagram: 1. Box body; 2. Reinforcing plate; 21. Through hole; 22. Anti-slip plate; 23. Fixing plate; 24. Support rod; 25. Support spring; 26. Connecting rod; 27. Screw; 28. Adhesive plate; 29. ​​Connecting adhesive; 3. Connecting rope. Detailed Implementation

[0013] 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.

[0014] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0015] Combination Figures 1-4The present invention provides a corrugated cardboard box corner protection structure, including a box body 1 and a reinforcing plate 2. The reinforcing plate 2 is provided at the top corner of the box body 1. The reinforcing plate 2 is provided with three bonding edges, which are bonded to the three sides of the box body 1 respectively. The thickness of the two bonding edges connected to the side of the box body 1 gradually decreases from the connecting line of the two bonding edges to the opposite side.

[0016] It should be noted that the reinforcing plate 2 can effectively protect and strengthen the top corner of the box 1, thereby preventing damage to the edges and corners of the box 1. In addition, the two inclined fitting edges of the reinforcing plate 2 can guide external objects, thus guiding the objects when they come into contact with them and preventing the reinforcing plate 2 from falling off.

[0017] In this embodiment, a through hole 21 is provided at the top corner of the reinforcing piece 2, and slots are provided on the two sides of the reinforcing piece 2, and the slots are connected to the interior of the through hole 21.

[0018] In this embodiment, a connecting rope 3 is provided through the inside of the through hole 21 and the groove, and the connecting rope 3 is elastic.

[0019] It should be noted that after the reinforcing plate 2 is connected to the box 1, the reinforcing plate 2 at different positions can be combined and installed by embedding the connecting rope 3 into the through hole 21 or the slot, thereby improving the connection between the reinforcing plate 2 and the box 1, preventing the reinforcing plate 2 and the box 1 from detaching, and thus facilitating the protection of the box 1.

[0020] In this embodiment, anti-slip pieces 22 are equidistantly provided on the inner sides of the two mating edges where the reinforcing piece 2 connects to the side of the box body 1, and the anti-slip pieces 22 are inclined toward the connecting side of the two mating edges.

[0021] It should be noted that when the reinforcing plate 2 is subjected to an external lateral force, the reinforcing plate 2 will move laterally along the direction of the force along the box 1, thereby increasing the friction between the box 1 and the reinforcing plate 2 through the anti-slip plate 22, thus preventing the reinforcing plate 2 from sliding outward when subjected to external force, and improving the stability of the reinforcing plate 2 during use.

[0022] In this embodiment, a groove is provided on the inner side of the fitting edge where the reinforcing piece 2 connects to the upper and lower ends of the housing 1. A fixing plate 23 is rotatably connected inside the groove, and a connecting mechanism is provided at the lower end of the fixing plate 23.

[0023] In this embodiment, the connecting mechanism includes a support rod 24, a support spring 25, a connecting rod 26, a screw 27, an adhesive plate 28, and adhesive 29. The support rod 24 is disposed at the bottom of the fixing plate 23. The upper end of the support rod 24 is provided with a support spring 25. The lower end of the support rod 24 is penetrated by the connecting rod 26. The lower end of the connecting rod 26 is provided with a screw 27. The outer side of the screw 27 is connected to the adhesive plate 28. The lower end of the adhesive plate 28 is frustoconical. The lower surface of the adhesive plate 28 is provided with adhesive 29.

[0024] It should be noted that rotating the bonding plate 28 can connect the screw 27, and then pressing the reinforcing plate 2 can bond the connecting adhesive 29 to the box 1. When pressing the reinforcing plate 2, when a part of the box 1 protrudes, the protruding part will first contact the connecting adhesive 29. The support spring 25 will support the connecting rod 26 and the bonding plate 28, so that the connecting adhesive 29 is bonded to the box 1. Then, as the reinforcing plate 2 continues to move downward, the connecting rod 26 will retract into the interior of the support rod 24, so that the bonding plates 28 at other positions can continue to move downward with the reinforcing plate 2 and bond to the box 1. When the reinforcing plate 2 is subjected to impact, the adhesive 29 adheres to the housing 1, thus preventing the reinforcing plate 2 from falling off. Furthermore, the fixing plate 23 and the reinforcing plate 2 can rotate, thereby fine-tuning the position of the reinforcing plate 2 to reduce the impact force on the reinforcing plate 2.

[0025] Working principle: First, the reinforcing plate 2 is moved longitudinally and connected to the corner of the box 1 so that the connecting adhesive 29 is attached to the box 1. Then, the connecting rope 3 is passed through the through hole 21 and the slot, so that the reinforcing plates 2 at different positions are combined and installed to increase the stability of the reinforcing plate 2. The reinforcing plate 2 can protect the corners of the box 1. When the reinforcing plate 2 is subjected to impact, it can rotate relative to the fixing plate 23, thereby fine-tuning the angle of the reinforcing plate 2 to reduce the impact force on the reinforcing plate 2. Furthermore, the anti-slip plate 22 can increase the stability between the reinforcing plate 2 and the box 1.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corner protection structure for corrugated cardboard boxes, comprising a box body (1) and reinforcing strips (2), characterized in that: A reinforcing plate (2) is provided at the top corner of the box (1). The reinforcing plate (2) has three fitting edges, which are fitted to the three sides of the box (1). The thickness of the two fitting edges connected to the side of the box (1) gradually decreases from the connecting line of the two fitting edges to the opposite side.

2. The anti-damage structure for the corners of a corrugated cardboard box according to claim 1, characterized in that: The reinforcing plate (2) has a through hole (21) at the top corner and two slots on its two sides, which are connected to the inside of the through hole (21).

3. The anti-damage structure for the corners of a corrugated cardboard box according to claim 2, characterized in that: A connecting rope (3) is provided through the inside of the through hole (21) and the groove. The connecting rope (3) is elastic.

4. The anti-damage structure for the corners of a corrugated cardboard box according to claim 1, characterized in that: Anti-slip pieces (22) are provided at equal intervals on the inner sides of the two mating edges of the reinforcing piece (2) and the side of the box body (1), and the anti-slip pieces (22) are inclined towards the connecting side of the two mating edges.

5. The anti-damage structure for the corners of a corrugated cardboard box according to claim 1, characterized in that: The reinforcing plate (2) is connected to the upper and lower ends of the box body (1) by a groove on the inner side of the fitting edge. A fixing plate (23) is rotatably connected inside the groove, and a connecting mechanism is provided at the lower end of the fixing plate (23).

6. The anti-damage structure for the corners of a corrugated cardboard box according to claim 5, characterized in that: The connecting mechanism includes a support rod (24), a support spring (25), a connecting rod (26), a screw (27), an adhesive plate (28), and adhesive (29). The support rod (24) is located at the bottom of the fixed plate (23). The upper end of the support rod (24) is provided with a support spring (25). The lower end of the support rod (24) is penetrated by the connecting rod (26). The lower end of the connecting rod (26) is provided with a screw (27). The outer side of the screw (27) is connected to the adhesive plate (28). The lower end of the adhesive plate (28) is frustum-shaped. The lower surface of the adhesive plate (28) is provided with adhesive (29).