Corrugated carton with good wear resistance

By introducing protective bottom plates, protective covers, protective columns, and reinforcing tubes into corrugated cardboard boxes, the structural stability issues of cardboard boxes during transportation and in humid environments are solved, achieving better wear resistance and protection.

CN224171387UActive Publication Date: 2026-04-28ZHEJIANG GUANGYUAN PRINTING & PACKING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG GUANGYUAN PRINTING & PACKING CO LTD
Filing Date
2025-01-21
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing corrugated cardboard boxes are prone to corner wear due to bumps and friction during transportation, resulting in reduced structural stability. They are also susceptible to absorbing water and softening in humid environments, leading to breakage and failing to effectively protect the contents.

Method used

The carton's abrasion resistance is enhanced by a structure consisting of a protective bottom plate, protective cover, protective columns, reinforcing tubes, and air bags. The protective bottom plate is composed of a load-bearing layer, a waterproof layer, and an abrasion-resistant layer. The protective cover and protective columns are detachably connected. The protective side plates and reinforcing plates provide additional protection, and the air bags provide cushioning.

Benefits of technology

It improves the structural stability and wear resistance of the cardboard box, prevents water immersion, reduces cracking caused by bumps and friction, and enhances the protection of the contents.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224171387U_ABST
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Abstract

The utility model discloses a corrugated carton with good wear resistance, which comprises a carton body, a protective bottom plate and a protective cover, protective columns extending upwards are arranged at four corners above the protective bottom plate, the carton body is arranged above the protective bottom plate, the section of each protective column is L-shaped, and the protective cover is arranged on the protective bottom plate. The corners of the side faces of the carton body are attached to the inner sides of the protective columns, reinforcing pipes with triangular sections are arranged at the four corners of the inner side of the carton body, first air bags are arranged in the reinforcing pipes, a groove matched with the top of the carton body in shape is formed in the bottom of the protective cover, and the protective cover is detachably connected with the protective columns.
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Description

Technical Field

[0001] This utility model relates to the field of cardboard box technology, specifically to a corrugated cardboard box with good wear resistance. Background Technology

[0002] Corrugated cardboard is die-cut, creasing, and stapling or gluing to make corrugated boxes. Corrugated boxes are one of the most widely used packaging products, and their usage has always been the highest among all packaging products, including calcium-plastic corrugated boxes. For more than half a century, corrugated boxes have gradually replaced wooden boxes and other transport packaging containers due to their superior performance and good processing properties, becoming the mainstay of transport packaging. In addition to protecting goods and facilitating warehousing and transportation, they also beautify and promote goods. Corrugated boxes are green and environmentally friendly products, which are beneficial to the environment and facilitate loading, unloading and transportation.

[0003] Existing corrugated cardboard boxes are prone to the following problems during use: 1. The corners and bottom of the boxes are easily bumped and rubbed during transportation, causing deformation and wear, which reduces their structural stability. When the boxes cannot withstand external forces, the contents inside are damaged. 2. When the boxes are placed in humid environments such as rainy days, the bottom of the boxes easily absorbs water and softens after the ground is wet, which reduces their surface hardness. When the boxes are bumped and rubbed, they are easily worn and cracked, which can also damage the contents inside. Utility Model Content

[0004] The purpose of this invention is to provide a corrugated cardboard box with good wear resistance to solve the problems mentioned in the background art.

[0005] To solve the above technical problems, this utility model adopts the following technical solution: a corrugated cardboard box with good wear resistance, including a box body, a protective bottom plate, and a protective cover. The protective bottom plate has protective posts extending upward at the four corners. The box body is placed on top of the protective bottom plate. The protective posts have an L-shaped cross-section. The corners of the sides of the box body fit against the inner side of the protective posts. The four inner corners of the box body are provided with reinforcing tubes with a triangular cross-section. An air bag is provided inside the reinforcing tube. The bottom of the protective cover has a groove that matches the shape of the top of the box body. The protective cover and the protective posts are detachably connected.

[0006] Using the above technical solution, the protective cover is fitted onto the top of the carton body through a groove. When the protective cover is connected to the protective post, the carton body is locked. The protective bottom plate can bear the friction force instead of the bottom of the carton body, and the protective post can protect the corners of the carton body, thereby reducing the carton body from being bumped and rubbed, resulting in wear and tear. The protective bottom plate can also increase the bottom height of the carton body, preventing the carton body from being soaked in water. The reinforcing tube can further enhance the structural strength of the corners of the carton body and increase the structural stability of the carton body. When the reinforcing tube is subjected to an unbearable external force, the air bag can provide a certain cushioning and protect the items inside the carton body.

[0007] As a further optimization of this utility model, the protective base plate includes a load-bearing layer, a waterproof layer, and an anti-wear layer arranged sequentially from top to bottom.

[0008] By adopting the above technical solutions, the wear-resistant layer gives the protective base plate good wear resistance, the waterproof layer prevents water from penetrating the base plate, and the load-bearing layer can improve the structural strength and load-bearing capacity of the protective base plate.

[0009] As a further optimization of this utility model, protective side plates are provided on all four sides above the protective base plate, and the inner side of the protective side wall is in contact with the side of the carton body.

[0010] By adopting the above technical solutions, the protective side panels can protect the four sides and lower part of the carton body, and the protective side panels can form a fence to further improve the waterproof effect.

[0011] As a further optimization of this utility model, the four sides of the carton body are provided with reinforcing plates that can be flipped up and down, and the reinforcing plates are provided with air bags. After the reinforcing cover is flipped down, it can be fixed to the side of the carton body.

[0012] By adopting the above technical solutions, the reinforcing plate can protect the four sides of the carton from wear and tear, and the air bag can provide cushioning protection when the sides of the carton are subjected to force, further protecting the items inside the carton.

[0013] As a further optimization of this utility model, a magnet is provided on the side of the carton body, and a magnet is provided on the side of the reinforcing plate away from the protective cover, which can be attracted to the magnet.

[0014] As a further optimization of this utility model, a connecting part one is provided above the protective column, and the connecting part one has a screw hole one. A connecting part two is provided on the protective cover, and the connecting part two has a screw hole two. The connecting part one and the connecting part two are connected by bolts.

[0015] The beneficial effects of this utility model are as follows: the protective cover is fitted onto the top of the carton body through a groove. When the protective cover is connected to the protective post, the carton body is locked. The protective bottom plate can bear the friction force instead of the bottom of the carton body. The protective post can protect the corners of the carton body, thereby reducing the carton body from being bumped and worn and broken due to friction. The protective bottom plate can also increase the bottom height of the carton body to prevent the carton body from being soaked in water. The reinforcing tube can further enhance the structural strength of the corners of the carton body and increase the structural stability of the carton body. When the reinforcing tube is subjected to an unbearable external force, the air bag can provide a certain cushioning and protect the items inside the carton body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the connection structure between the protective base plate and the carton body in this utility model;

[0017] Figure 2 This is a cross-sectional view of the protective base plate in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the protective cover in this utility model;

[0019] Figure 4 This is a top view of the protective base plate in this utility model.

[0020] Figure 5 This is a top sectional view of the carton body in this utility model.

[0021] The labels in the diagram mean: 1. Carton body; 2. Protective bottom plate; 21. Protective post; 22. Protective side plate; 31. Load-bearing layer; 32. Waterproof layer; 33. Abrasion-resistant layer; 4. Protective cover; 41. Groove; 51. Connecting part one; 511. Screw hole one; 52. Connecting part two; 521. Screw hole two; 53. Bolt; 6. Reinforcing plate; 61. Air bag two; 71. Magnet one; 72. Magnet two; 8. Reinforcing tube; 81. Air bag one. Detailed Implementation

[0022] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0023] See appendix Figures 1-5 The present embodiment of this utility model further includes: a corrugated cardboard box with good wear resistance, comprising a cardboard box body 1, a protective bottom plate 2, and a protective cover 4;

[0024] The protective base plate 2 includes a load-bearing layer 31, a waterproof layer 32, and an anti-wear layer 33 arranged sequentially from top to bottom;

[0025] The protective base plate 2 has protective posts 21 extending upwards at the four corners. The carton body 1 is placed on the protective base plate 2. The protective posts 21 have an L-shaped cross-section. The corners of the sides of the carton body 1 are fitted with the inner side of the protective posts 21. The four corners of the inner side of the carton body 1 are provided with reinforcing tubes 8 with a triangular cross-section. An air bag 81 is provided inside the reinforcing tube 8. The bottom of the protective cover 4 is provided with a groove 41 that matches the shape of the top of the carton body 1. The protective cover 4 and the protective posts 21 are detachably connected. Specifically, the protective posts 21 have a connecting part 51 on the top. The connecting part 51 has a screw hole 511. The protective cover 4 has a connecting part 52. The connecting part 52 has a screw hole 521. The connecting part 51 and the connecting part 52 are connected by bolts 53.

[0026] Furthermore, protective side panels 22 are provided on all four sides above the protective base plate 2, and the inner side of the protective side wall is attached to the side of the carton body 1.

[0027] The four sides of the carton body 1 are provided with a reinforcing plate 6 that can be flipped up and down. The reinforcing plate 6 is provided with an air bag 61. The side of the carton body 1 is provided with a magnet 71. The side of the reinforcing plate 6 away from the protective cover 4 is provided with a magnet 72 that can be attracted to the magnet 71, so that the reinforcing cover can be fixed to the side of the carton body 1 after it is flipped down.

[0028] The principle of this utility model is as follows: the wear-resistant layer 33 gives the protective base plate 2 good wear resistance, the waterproof layer 32 prevents water from penetrating the base plate, and the load-bearing layer 31 can improve the structural strength and load-bearing capacity of the protective base plate 2.

[0029] The protective cover 4 is fitted onto the top of the carton body 1 through the groove 41. When the protective cover 4 is connected to the protective post 21, the carton body 1 is locked. The protective bottom plate 2 can bear the friction force on the bottom of the carton body 1. The protective post 21 can protect the corners of the carton body 1, thereby reducing the wear and tear caused by bumps and friction. The reinforcing tube 8 can further enhance the structural strength of the corners of the carton body 1 and increase the structural stability of the carton body 1. When the reinforcing tube 8 is subjected to an unbearable external force, the air bag 81 can provide a certain cushioning to protect the items inside the carton body 1.

[0030] The protective bottom plate 2 can also increase the bottom height of the carton body 1 to prevent the carton body 1 from being soaked in water, and the protective side plate 22 can form a fence to further enhance the waterproof effect;

[0031] Setting up the reinforcing tube 8 can further enhance the structural strength of the corner of the carton body 1 and increase the structural stability of the carton body 1. When the reinforcing tube 8 is subjected to an unbearable external force, the air bag 81 can provide a certain buffer to protect the items inside the carton body 1.

[0032] The protective side panel 22 can protect the four sides of the carton body 1 from wear and tear. The reinforcing plate 6 can protect the four sides of the carton body 1 from wear and tear. The air bag 61 can provide cushioning protection when the sides of the carton body 1 are subjected to force, further protecting the items inside the carton body 1.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A corrugated cardboard box with good wear resistance, comprising a box body (1), characterized in that, It also includes a protective base plate (2) and a protective cover (4). The protective base plate (2) has protective posts (21) extending upward at the four corners. The carton body (1) is placed above the protective base plate (2). The protective posts (21) have an L-shaped cross-section. The corners of the sides of the carton body (1) are fitted with the inner side of the protective posts (21). The four corners of the inner side of the carton body (1) are provided with reinforcing tubes (8) with a triangular cross-section. An air bag (81) is provided inside the reinforcing tube (8). The bottom of the protective cover (4) is provided with a groove (41) that matches the shape of the top of the carton body (1). The protective cover (4) and the protective posts (21) are detachably connected.

2. A corrugated cardboard box with good wear resistance according to claim 1, characterized in that, The protective base plate (2) includes a load-bearing layer (31), a waterproof layer (32), and an anti-wear layer (33) arranged sequentially from top to bottom.

3. A corrugated cardboard box with good wear resistance according to claim 1 or 2, characterized in that, The protective base plate (2) is provided with protective side plates (22) on all four sides above, and the inner side of the protective side wall is in contact with the side of the carton body (1).

4. A corrugated cardboard box with good wear resistance according to claim 1, characterized in that, The four sides of the carton body (1) are provided with reinforcing plates (6) that can be flipped up and down. The reinforcing plates (6) are provided with air bags (61). After the reinforcing plates are flipped down, they can be fixed to the side of the carton body (1).

5. A corrugated cardboard box with good wear resistance according to claim 4, characterized in that, The side of the carton body (1) is provided with a magnet (71), and the reinforcing plate (6) away from the protective cover (4) is provided with a magnet (72) that can attract the magnet (71).

6. A corrugated cardboard box with good wear resistance according to claim 1, characterized in that, The protective post (21) has a connecting part 1 (51) on its upper part, and the connecting part 1 (51) has a screw hole 1 (511). The protective cover (4) has a connecting part 2 (52), and the connecting part 2 (52) has a screw hole 2 (521). The connecting part 1 (51) and the connecting part 2 (52) are connected by bolts (53).