A packaging material box using paper corner protectors
The design of corner protector components and reinforcement components solves the problem of unstable fixing of paper corner protectors, realizes a stable connection between paper corner protectors and packaging material boxes, and improves the protection capability and overall structural strength during transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN HENGHUANDA IND CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-06-30
AI Technical Summary
The existing paper corner protectors are not securely attached to the packaging material box and are prone to falling off during transportation. This results in the packaging material box losing its reinforcement and protection in weak areas, which may cause damage to the packaging material box and the product.
The system employs corner protector components and reinforcement components, including a reinforced outer shell, an anti-slip coating, and a connecting plate. The reinforced outer shell is secured with staples, and the anti-slip coating increases friction to ensure a tight fit between the paper corner protectors and the packaging material box. The connecting plate forms a U-shaped structure to enhance overall protection.
Effectively prevents paper corner protectors from falling off during transportation, enhances the structural strength of the packaging box, reduces the risk of damage, extends the service life of the top cover, and protects the items inside the box from scratches and wear.
Smart Images

Figure CN224428568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging material boxes, and in particular to a packaging material box using paper corner protectors. Background Technology
[0002] Packaging material boxes with paper corner protectors are paper packaging material boxes with paper corner protectors installed on the outside of corrugated cardboard boxes. Their main function is to reinforce the weak parts of the cardboard box by using paper corner protectors, thereby improving the overall packaging's impact resistance and deformation resistance. They are mainly used to protect various products during transportation, and are especially suitable for large, fragile, or stackable items.
[0003] Most existing paper corner protectors are fixed to the packaging material box with glue. However, during the glue application process, dust or oil may be present on the surface of the cardboard box, making the paper corner protectors prone to falling off during transportation vibrations. This results in the paper corner protectors losing their reinforcement of the weak parts of the packaging material box, which may cause damage to the packaging material box and the product.
[0004] Therefore, this application provides a packaging material box using paper corner protectors to meet the requirements. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a packaging material box that uses paper corner protectors.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a packaging material box using paper corner protectors, comprising a packaging material box body, and further comprising:
[0007] The corner protector assembly is located on the outside of the packaging material box body. The corner protector assembly includes a reinforced outer shell arranged around the outside of the packaging material box body. An upper paper corner protector is provided between the inner side of the reinforced outer shell and the top of the outer side of the packaging material box body, and a lower paper corner protector is provided between the inner side of the reinforced outer shell and the bottom of the outer side of the packaging material box body.
[0008] A reinforcing component is placed outside the corner protector component and is used to reinforce the connection between the reinforcing shell and the lower and upper paper corner protectors. The reinforcing component includes an anti-slip layer on the lower and upper paper corner protectors near the reinforcing shell. The anti-slip layer is used to increase the friction between the lower and upper paper corner protectors and the reinforcing shell.
[0009] Furthermore, the top of the packaging material box body is provided with a top cover, and the top of the top cover is connected with a top corner protector.
[0010] The beneficial effects of adopting the above-mentioned further solutions are: preventing dust and impurities from entering, protecting the items inside the box from impacts from falling objects on top, and at the same time, protecting the corners of the top cover from tearing due to collisions, thus extending the service life of the top cover.
[0011] Furthermore, the inner sides of the packaging material box body are all provided with inner paper corner protectors.
[0012] The beneficial effects of adopting the above-mentioned further solutions are: to prevent items inside the box from directly contacting the corners and edges of the inner wall of the box, to prevent the items from being scratched, and to reduce local wear and tear on the box from the items.
[0013] Furthermore, a fixing groove is provided on the bottom of the inner wall of the packaging material box body near the inner paper corner protector, and the inner paper corner protector is engaged with the packaging material box body through the fixing groove.
[0014] The beneficial effect of adopting the above-mentioned further solutions is that it prevents the inner paper corner protectors from falling off from the bottom when handling or flipping the box, ensuring that the protection inside the box remains effective.
[0015] Furthermore, a connecting plate connects the upper paper corner protector and the inner paper corner protector, and the upper paper corner protector and the inner paper corner protector are connected by the connecting plate to form a U-shaped structure.
[0016] The beneficial effect of adopting the above-mentioned further solution is that the connecting plate eliminates the risk of independent displacement of the inner and outer corner protectors, and avoids the problem of protection failure caused by the detachment of a single paper corner protector.
[0017] Furthermore, a snap-fit groove is provided on the side of the top cover near the connecting plate, and the top cover snaps into the connecting plate through the snap-fit groove.
[0018] The beneficial effect of adopting the above-mentioned further solution is that it enables the top cover, upper paper corner protectors, and inner paper corner protectors to form an integral structure, which helps to improve the overall protective capability of the packaging material box.
[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0020] 1. By setting up corner protector components and using staples to fix the reinforced outer shell to the outside of the packaging material box body, glue is then applied to the inside of the lower and upper paper corner protectors. The two paper corner protectors are then inserted into the inside of the reinforced outer shell. At this point, the reinforced outer shell cooperates with the packaging material box body to fix the lower and upper paper corner protectors from both sides. If there is insufficient glue on the lower and upper paper corner protectors to stick them to the packaging material box body, the reinforced outer shell provides support from the outside, ensuring that the lower and upper paper corner protectors are always tightly attached to the packaging material box body. This solves the problem that the paper corner protectors are easy to fall off during transportation vibration, causing the weak parts of the packaging material box to lose reinforcement protection. This ensures the structural strength of the packaging material box body during transportation and reduces the possibility of damage to the packaging material box and its internal products due to insufficient protection.
[0021] 2. By setting up reinforcement components, when the paper corner protectors are inserted into the reinforced shell, the anti-slip layer increases the friction between the lower and upper paper corner protectors and the inner wall of the reinforced shell. Before the glue has solidified, it can prevent the paper corner protectors from shifting or falling off, ensuring the stability of the assembly process. When the glue fails due to aging, vibration, or other factors, the friction formed by the anti-slip layer can still maintain the connection between the lower and upper paper corner protectors and the reinforced shell, thereby improving the reliability of the connection between the three. Attached Figure Description
[0022] Figure 1 This is a front view of a packaging material box using paper corner protectors according to this utility model;
[0023] Figure 2 This is an exploded view of a corner protector assembly in a packaging material box using paper corner protectors, according to the present invention.
[0024] Figure 3 This is a structural diagram of the upper paper corner protector in a packaging material box using paper corner protectors, according to this utility model.
[0025] Figure 4 This is a structural diagram of the inner paper corner protector in a packaging material box using paper corner protectors, according to this utility model.
[0026] Figure 5 This is a structural diagram of the top cover of a packaging material box using paper corner protectors, according to this utility model.
[0027] Figure label:
[0028] 1. The main body of the packaging material box;
[0029] 2. Corner protector assembly; 21. Reinforced outer shell; 22. Bottom paper corner protector; 23. Top paper corner protector; 24. Top cover; 25. Top corner protector; 26. Inner paper corner protector; 27. Fixing groove; 28. Connecting plate; 29. Snap-fit groove;
[0030] 3. Reinforced components; 31. Anti-slip coating. Detailed Implementation
[0031] 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.
[0032] Example 1
[0033] like Figures 1-5 As shown, this utility model provides a technical solution: a packaging material box using paper corner protectors, including a packaging material box body 1, and further comprising:
[0034] like Figures 1-2 As shown, the corner protector assembly 2 is placed on the outside of the packaging material box body 1. The corner protector assembly 2 includes a reinforced outer shell 21 disposed around the outside of the packaging material box body 1. An upper paper corner protector 23 is disposed between the inner side of the reinforced outer shell 21 and the top of the outer side of the packaging material box body 1, and a lower paper corner protector 22 is disposed between the inner side of the reinforced outer shell 21 and the bottom of the outer side of the packaging material box body 1.
[0035] like Figures 2-3As shown, the reinforcing component 3 is placed outside the corner protector component 2 and is used to reinforce the connection between the reinforcing shell 21 and the lower paper corner protector 22 and the upper paper corner protector 23. The reinforcing component 3 includes an anti-slip layer 31 on the lower paper corner protector 22 and the upper paper corner protector 23 near the reinforcing shell 21. The anti-slip layer 31 is used to increase the friction between the lower paper corner protector 22, the upper paper corner protector 23 and the reinforcing shell 21. The reinforcing shell 21 is fixed to the outside of the packaging material box body 1 by staples. Glue is applied to the inside of the lower paper corner protector 22 and the upper paper corner protector 23. The two are then inserted into the inside of the reinforcing shell 21, so that the reinforcing shell 21 and the packaging material box body 1 cooperate to fix the lower paper corner protector 22 and the upper paper corner protector 23 from both sides. When the glue on the lower paper corner protector 22 and the upper paper corner protector 23 is insufficient to fix them to the packaging material box body 1, the reinforcing shell 21 will fix them from the outside. The support provided ensures a tight fit between the lower paper corner protectors 22, the upper paper corner protectors 23, and the packaging material box body 1. This solves the problem that the corner protectors are prone to falling off during transportation due to vibration, causing the paper corner protectors to lose their reinforcement of the weak parts of the packaging material box. This helps ensure the strength of the packaging material box body 1 during transportation and prevents damage to the packaging material box and the product. Furthermore, by spraying an anti-slip layer 31 onto the lower paper corner protectors 22 and the upper paper corner protectors 23, when the lower paper corner protectors 22 and the upper paper corner protectors 23 are inserted into the reinforced outer shell 21, the anti-slip layer 31 increases the friction between the three for initial fixation, preventing the lower paper corner protectors 22 and the upper paper corner protectors 23 from falling off before the glue solidifies. At the same time, it ensures that the lower paper corner protectors 22 and the upper paper corner protectors 23 remain connected to the reinforced outer shell 21 even after the glue has deteriorated, which helps improve the stability of the connection between the three.
[0036] Example 2
[0037] Furthermore, such as Figure 1 As shown, a top cover 24 is provided on the top of the packaging material box body 1. A top corner protector 25 is connected to the top of the top cover 24. The top corner protector 25 is fixed to the top cover 24 by using glue. The assembled top corner protector 25 and the top cover 24 are closed on the top of the packaging material box body 1 to complete the top seal, prevent dust and impurities from entering, and protect the items inside the box from impacts from falling objects. At the same time, the top corner protector 25 protects the corners of the top cover 24 to prevent the top cover 24 from tearing due to collisions and extend the service life of the top cover 24.
[0038] Example 3
[0039] Furthermore, such as Figure 4As shown, inner paper corner protectors 26 are provided on all four sides of the inner side of the packaging material box body 1. By sticking and fixing the inner paper corner protectors 26 on all four sides of the inner side of the packaging material box body 1, it is ensured that the inner paper corner protectors 26 are tightly attached to the inner wall of the box. While supporting the inner wall from the inside of the box, it prevents the items inside the box from directly contacting the corners of the inner wall of the box, preventing the items from being scratched, and reducing the local wear and tear of the items on the box.
[0040] Furthermore, such as Figure 4 As shown, a fixing groove 27 is provided on the bottom of the inner wall of the packaging material box body 1 near the inner paper corner protector 26. The inner paper corner protector 26 is engaged with the packaging material box body 1 through the fixing groove 27. By opening a fixing groove 27 on the inner wall of the packaging material box body 1 that matches the inner paper corner protector 26, the bottom of the inner paper corner protector 26 is inserted into the fixing groove 27, and then glue is used to fix the inner paper corner protector 26, thereby preventing the inner paper corner protector 26 from falling off from the bottom when the box is handled or flipped, and ensuring that the protection inside the box is continuously effective.
[0041] Example 4
[0042] Furthermore, such as Figure 3 As shown, a connecting plate 28 connects the upper paper corner protector 23 and the inner paper corner protector 26. The upper paper corner protector 23 and the inner paper corner protector 26 are connected by the connecting plate 28 to form a U-shaped structure. By bonding the upper paper corner protector 23, the connecting plate 28 and the inner paper corner protector 26 into a whole U-shaped structure, the U-shaped structure is fitted onto the upper corner of the packaging material box body 1, so that the upper paper corner protector 23 fits against the top of the outer side of the box and the inner paper corner protector 26 fits against the inner side of the box. This increases the reinforcement effect from both the inside and outside, and enhances the ability to resist lateral compression and longitudinal impact. At the same time, the connecting plate 28 eliminates the risk of independent displacement of the inner and outer corner protectors, and avoids the problem of protection failure caused by the detachment of a single paper corner protector.
[0043] Furthermore, such as Figure 5 As shown, a snap-fit groove 29 is provided on the side of the top cover 24 near the connecting plate 28. The top cover 24 is snapped into the connecting plate 28 through the snap-fit groove 29. By closing the top cover 24, the connecting plate 28 is aligned with the snap-fit groove 29. Pushing the top cover 24 causes the connecting plate 28 to snap into the interior of the snap-fit groove 29, thereby forming an integral structure with the top cover 24, the upper paper corner protector 23, and the inner paper corner protector 26, which helps to improve the overall protective capability of the packaging material box body 1.
[0044] like Figures 1-5 As shown:
[0045] First, use staples to fix the reinforced outer shell 21 to the outside of the packaging material box body 1. Apply glue to the inside of the lower paper corner protectors 22, upper paper corner protectors 23, and inner paper corner protectors 26. First, push the lower paper corner protector 22 into the inside of the reinforced outer shell 21 from the bottom, and then push the upper paper corner protector 23 into the inside of the reinforced outer shell 21 from the top. Fix the lower paper corner protector 22 and the upper paper corner protector 23 to the outside of the packaging material box body 1. Since the upper paper corner protector 23 and the inner paper corner protector 26 are connected into a U-shaped whole by the connecting plate 28, the connecting plate 28 moves the inner paper corner protector... Corner 26 moves along with the upper paper corner protector 23, so that the U-shaped structure is snapped into the top of the packaging material box body 1. The inner paper corner protector 26 is inserted into the inside of the fixing groove 27, thereby reinforcing the corners of the packaging material box body 1 from both the inside and outside. Then, the product is placed inside the packaging material box body 1. Finally, glue is used to fix the top corner protector 25 to the top cover 24. The assembled top corner protector 25 and the top cover 24 are closed on the top of the packaging material box body 1, so that the top cover 24, the upper paper corner protector 23, and the inner paper corner protector 26 form an integral structure, completing the top seal.
[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A packaging material box to which a paper corner protector is applied, comprising a packaging material box body (1), characterized in that, Also includes: Corner protector assembly (2), the corner protector assembly (2) is placed on the outside of the packaging material box body (1), the corner protector assembly (2) includes a reinforced outer shell (21) arranged around the outside of the packaging material box body (1), an upper paper corner protector (23) is provided between the inner side of the reinforced outer shell (21) and the top of the outer side of the packaging material box body (1), and a lower paper corner protector (22) is provided between the inner side of the reinforced outer shell (21) and the bottom of the outer side of the packaging material box body (1). The reinforcement component (3) is placed outside the corner protector component (2) and is used to reinforce the connection between the reinforcement shell (21) and the lower paper corner protector (22) and the upper paper corner protector (23). The reinforcement component (3) includes an anti-slip layer (31) on the side of the lower paper corner protector (22) and the upper paper corner protector (23) near the reinforcement shell (21). The anti-slip layer (31) is used to increase the friction between the lower paper corner protector (22), the upper paper corner protector (23) and the reinforcement shell (21).
2. A packaging material box using paper corner protectors according to claim 1, characterized in that, The top of the packaging material box body (1) is provided with a top cover (24), and the top of the top cover (24) is connected with a top corner protector (25).
3. A packaging material box using paper corner protectors according to claim 2, characterized in that, The inner sides of the packaging material box body (1) are provided with inner paper corner protectors (26).
4. A packaging material box using paper corner protectors according to claim 3, characterized in that, A fixing groove (27) is provided on the bottom of the inner wall of the packaging material box body (1) near the inner paper corner protector (26), and the inner paper corner protector (26) is engaged with the packaging material box body (1) through the fixing groove (27).
5. A packaging material box using paper corner protectors according to claim 3, characterized in that, A connecting plate (28) connects the upper paper corner protector (23) and the inner paper corner protector (26), and the upper paper corner protector (23) and the inner paper corner protector (26) are connected by the connecting plate (28) to form a U-shaped structure.
6. A packaging material box using paper corner protectors according to claim 3, characterized in that, A snap-fit groove (29) is provided on the side of the top cover (24) near the connecting plate (28), and the top cover (24) is snapped into the connecting plate (28) through the snap-fit groove (29).