Corner guards with reinforced structure

The corner protector design with reinforced structure enables quick replacement of corner protectors and optimizes cushioning performance, solving the problems of monotonous decorative patterns and high maintenance costs, improving decorative flexibility and impact resistance, and extending product lifespan.

CN224281870UActive Publication Date: 2026-05-26DONGGUAN GUANGFA RUBBER PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN GUANGFA RUBBER PROD CO LTD
Filing Date
2025-05-08
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing corner protectors have limited decorative patterns, making them difficult to replace quickly to suit different needs. They also have high maintenance costs, requiring complete replacement for partial damage. Furthermore, it is difficult to balance impact resistance with lightweight construction, and they are prone to deformation and cracking with long-term use.

Method used

It adopts a reinforced corner guard design, including a separate connection between the detachable decorative strip and the corner guard. The combination of positioning slots, snap-fit ​​grooves and barbs enables quick installation and removal. The separate design of the decorative strip and the corner guard means that only a single part needs to be replaced when there is partial damage. Combined with the buffer cavity and the support and shock absorption layer, the stress distribution and buffer performance are optimized.

Benefits of technology

It enables flexible replacement of decorative strips, reduces maintenance costs, extends product life cycle, enhances decorative flexibility, optimizes cushioning performance, avoids overall scrapping, reduces material usage, enhances impact resistance, and prevents deformation and cracking.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224281870U_ABST
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Abstract

This utility model relates to reinforced corner protectors, including a corner protector strip with two symmetrical bevels on its surface. A detachable decorative strip is connected to each bevel, forming an arc-shaped corner protector between the two bevels. A positioning slot is provided on the side wall of the arc-shaped corner protector. A support edge, matching the contour of the arc-shaped corner protector, is provided at the end of the decorative strip near the arc-shaped corner protector. A positioning insert is provided on the surface of the support edge, which can be inserted into the positioning slot. A side pressing edge is provided at the end of the decorative strip away from the positioning insert. A first locking groove is provided at the end of the corner protector strip away from the arc-shaped corner protector. A first locking strip is provided on the inner wall of the side pressing edge, with a barb at its end. An anti-detachment groove is provided on the inner wall of the first locking groove, allowing the first locking strip to be inserted into the first locking groove. Users can flexibly replace the decorative strip with different materials and colors according to usage scenarios or aesthetic needs without replacing the corner protector strip itself, significantly reducing maintenance costs and improving decorative flexibility.
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Description

Technical Field

[0001] This utility model relates to the field of protective strips and corner protectors, and in particular to protective strips and corner protectors with reinforced structures. Background Technology

[0002] Corner guards, as protective components for buildings and furniture, are widely used at right-angled areas such as wall corners and furniture edges that are prone to impact. Their core function is to physically wrap and cushion the impact, preventing damage to walls and furniture surfaces or injury from accidental contact. Traditional corner guards are typically made of plastic, rubber, or metal and are fixed to corners using methods such as adhesives or nails. They have significant applications in industrial warehousing, home decoration, and public places. Furthermore, as users' demands for spatial aesthetics increase, corner guards are increasingly incorporating both functional protection and decorative design, for example, achieving visual harmony with the interior environment through surface textures and color combinations.

[0003] Most existing corner protectors are one-piece designs, with the decorative surface and the corner protector body molded as a single piece. This means that when users change the decorative appearance according to their needs, they have to remove the entire corner protector. After removal, the corner protector is often unusable. If a part is damaged, the entire protector needs to be replaced, resulting in high maintenance costs and serious waste of resources. Furthermore, relying on the thickness of a single material or a simple filling layer for cushioning makes it difficult to balance impact resistance with lightweight structure. Long-term use can easily lead to problems such as deformation and cracking. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides corner protectors with reinforced structures, which can effectively solve the technical problem that the decorative patterns of corner protectors are monotonous and cannot be quickly replaced according to the needs of the scene.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] The reinforced corner protector includes a corner protector strip. The surface of the corner protector strip has two symmetrical bevels extending along its length. A detachable decorative strip is connected to each bevel. An arc-shaped corner protector is formed between the two bevels. A positioning slot is provided on the side wall of the arc-shaped corner protector. A support edge, matching the contour of the arc-shaped corner protector, is provided at the end of the decorative strip near the arc-shaped corner protector. A positioning insert is provided on the surface of the support edge, which can be inserted into the positioning slot. A side pressing edge is provided at the end of the decorative strip away from the positioning insert. A first snap-fit ​​groove is provided at the end of the corner protector strip away from the arc-shaped corner protector. A first snap-fit ​​strip is provided on the inner wall of the side pressing edge. A barb is provided at the end of the first snap-fit ​​strip. A corresponding anti-detachment groove is provided on the inner wall of the first snap-fit ​​groove. The first snap-fit ​​strip can be inserted into the first snap-fit ​​groove, and the barb engages with the anti-detachment groove. When the decorative strip and corner protector strip are assembled, a buffer cavity is formed between the decorative strip and the bevels. Reinforcing ribs are provided on the inner wall of the decorative strip.

[0007] Furthermore, the reinforcing rib extends along the width direction of the decorative strip, and the surface of the decorative strip is provided with decorative raised patterns extending along the length direction.

[0008] Furthermore, a support and shock-absorbing layer is provided inside the buffer cavity, and a positioning post is provided on the inclined surface. The positioning post can be paired and inserted into the support and shock-absorbing layer.

[0009] Furthermore, the supporting damping layer is grid-shaped, and the positioning post can be inserted into any one of the grid holes of the supporting damping layer.

[0010] Furthermore, the positioning slot is T-shaped, the side wall of the positioning insert is provided with limiting fins, and the middle of the positioning insert is provided with a compression cavity. When the positioning insert is inserted into the positioning slot, the limiting fins undergo elastic deformation and fold inward. The limiting fins compress the positioning insert to cause elastic deformation. After the positioning insert is inserted into the positioning slot, the limiting fins and the positioning insert return to their original deformation, and the limiting fins and the positioning insert fit against the inner wall of the positioning slot.

[0011] Furthermore, the inner wall of the corner protector strip is provided with a base adhesive layer, and the surface of the base adhesive layer is covered with a release layer.

[0012] Furthermore, the inner wall of the side pressing edge has a second snap-fit ​​groove, and the edge of the first snap-fit ​​groove is provided with a second snap-fit ​​strip that matches the second snap-fit ​​groove.

[0013] Compared with existing technologies, the advantages of this utility model are as follows: the decorative strip achieves quick installation and disassembly through the axial guiding cooperation of the positioning insert and the positioning slot, and the elastic engagement of the first snap-fit ​​bar's barb and the anti-detachment groove. Users can flexibly replace the decorative strips with different materials and colors according to usage scenarios or aesthetic needs, without replacing the corner protector body, significantly reducing maintenance costs and improving decorative flexibility. The decorative strip and corner protector adopt a split design, so only a single part needs to be replaced when there is partial damage, avoiding the scrapping of the whole product and extending its life cycle. The rounded corner protection design of the corner protector optimizes the stress distribution at the corner, and the hollow weight-reducing structure of the buffer cavity reduces the amount of material used while ensuring overall strength. The buffer cavity formed between the inclined surfaces of the decorative strip and the corner protector can effectively absorb external impact forces, preventing the corner protector from direct contact with the wall or furniture and causing damage. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0015] Figure 2 This is a three-dimensional schematic diagram of the concealed decorative strip of this utility model;

[0016] Figure 3 This is a cross-sectional view of the present invention;

[0017] Figure 4 for Figure 3A magnified view of a section at point A in the middle;

[0018] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;

[0019] The labels in the diagram are: 1-corner guard strip, 2-decorative strip, 3-bevel, 4-rounded corner guard, 5-first snap-fit ​​groove, 6-first snap-fit ​​strip, 7-barb part, 8-anti-detachment groove, 9-positioning slot, 10-positioning insert, 11-limiting fin, 12-second snap-fit ​​groove, 13-second snap-fit ​​strip, 14-buffer cavity, 15-support and shock-absorbing layer, 16-positioning post, 17-bottom adhesive layer. 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] The following is combined with Figures 1-5 The following is a detailed description of the reinforcing corner guards of this utility model:

[0022] The reinforced corner guard includes a corner guard strip 1. The surface of the corner guard strip 1 has two symmetrical, longitudinally extending bevels 3. A detachable decorative strip 2 is connected to each bevel 3. A first snap-fit ​​groove 5 is formed on the edge of the corner guard strip 1. An arc-shaped corner guard 4 is formed between the two bevels 3. A positioning slot 9 is provided on the side wall of the arc-shaped corner guard 4. A support edge matching the contour of the arc-shaped corner guard 4 is provided at one end of the decorative strip 2 near the arc-shaped corner guard 4. A positioning insert 10 is provided on the surface of the support edge. The insert strip 10 can be paired and inserted into the positioning slot 9. The end of the decorative strip 2 away from the positioning insert edge is provided with a side pressing edge. The inner wall of the side pressing edge is formed with a first snap-fit ​​strip 6. The end of the first snap-fit ​​strip 6 is provided with a barb 7. The inner wall of the first snap-fit ​​groove 5 is provided with an anti-detachment groove 8. The first snap-fit ​​strip 6 can be inserted into the first snap-fit ​​groove 5. The barb 7 engages with the anti-detachment groove 8. When the decorative strip 2 and the corner protector strip 1 are assembled, a buffer cavity 14 is formed between the decorative strip 2 and the inclined surface 3. The inner wall of the decorative strip 2 is provided with reinforcing ribs.

[0023] Decorative strip 2 achieves quick installation and removal through the axial guiding engagement of positioning insert 10 and positioning slot 9, and the elastic engagement of the barb 7 of the first snap-fit ​​strip 6 and the anti-detachment groove 8. Users can flexibly replace decorative strip 2 with different materials and colors according to usage scenarios or aesthetic needs without replacing the corner protector strip 1 itself, significantly reducing maintenance costs and improving decorative flexibility. Decorative strip 2 and corner protector strip 1 adopt a split design, so only a single part needs to be replaced when a part is damaged, avoiding the scrapping of the whole and extending the product life cycle. The rounded corner 4 design of corner protector strip 1 optimizes the stress distribution at the corner, and together with the cavity weight-reducing structure of buffer cavity 14, it reduces the amount of material used while ensuring overall strength. The buffer cavity 14 formed between the inclined surface 3 of decorative strip 2 and corner protector strip 1 can effectively absorb external impact force and prevent corner protector strip 1 from direct contact with the wall or furniture and causing damage.

[0024] The reinforcing ribs extend along the width of the decorative strip 2, which can improve the lateral bending resistance of the decorative strip 2 and prevent deformation caused by uneven local stress. The surface of the decorative strip 2 is provided with decorative ridges extending along the length direction, which not only enhances the surface anti-slip properties, but also creates a visual sense of layering through the concave and convex texture, further enhancing the decorative effect of the product.

[0025] The buffer cavity 14 is provided with a support and shock absorption layer 15, which can further disperse external impact energy and reduce the risk of rigid collision between the corner guard strip 1 and the wall. The inclined surface 3 is provided with a positioning post 16, which can be paired and inserted into the support and shock absorption layer 15. The support and shock absorption layer 15 is grid-shaped, and the positioning post 16 can be inserted into any grid hole of the support and shock absorption layer 15. The grid-shaped support and shock absorption layer 15 achieves lightweight through its porous structure, while allowing the positioning post 16 to be inserted into any grid hole. Users can adjust the installation position of the support and shock absorption layer 15 according to actual needs.

[0026] The positioning slot 9 is T-shaped. The side wall of the positioning insert 10 is provided with limiting fins 11. The middle of the positioning insert 10 is provided with a compression cavity. When the positioning insert 10 is inserted into the positioning slot 9, the limiting fins 11 undergo elastic deformation and fold inward. The limiting fins 11 compress the positioning insert 10 to produce elastic deformation. The compression cavity releases the assembly stress and ensures a tight fit between the positioning insert 10 and the slot. After the positioning insert 10 is inserted into the positioning slot 9, the limiting fins 11 and the positioning insert 10 return to their original shape and fit against the inner wall of the positioning slot 9, preventing the decorative strip 2 from loosening and falling off due to vibration or temperature difference deformation.

[0027] The inner wall of the corner protector 1 is provided with a base adhesive layer 17, and the surface of the base adhesive layer 17 is covered with a release layer. The base adhesive layer 17 can be pre-adheded to the surface of the wall or furniture. The release layer covers the base adhesive layer 17 to prevent contamination or failure before construction. During installation, only the release layer needs to be removed to directly fix the corner protector 1, which simplifies the installation process. The base adhesive layer 17 can also compensate for the small gap between the corner protector 1 and the substrate, and improve the fit and sealing.

[0028] The inner wall of the side pressing edge has a second locking groove 12, and the edge of the first locking groove 5 is provided with a second locking strip 13 that matches the second locking groove 12. The second locking groove 12 and the second locking strip 13 form an additional locking point. By multi-point interlocking, the stress concentration between the decorative strip 2 and the corner guard strip 1 is dispersed, and the failure of a single point of interlocking is avoided, which would cause the overall structure to loosen.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A corner guard with a reinforced structure, comprising a corner guard strip, wherein the surface of the corner guard strip is provided with two symmetrical bevels extending along the length direction, characterized in that: The inclined surface is connected to a detachable decorative strip, and a rounded corner protector is formed between the two inclined surfaces. The side wall of the rounded corner protector is provided with a positioning slot. The end of the decorative strip near the rounded corner protector is provided with a support edge that matches the contour of the rounded corner protector. The surface of the support edge is provided with a positioning insert, which can be paired and inserted into the positioning slot. The end of the decorative strip away from the positioning insert is provided with a side pressing edge. The end of the corner protector away from the rounded corner protector is provided with a first snap-fit ​​groove. The inner wall of the side pressing edge is provided with a first snap-fit ​​strip. The end of the first snap-fit ​​strip is provided with a barb. The inner wall of the first snap-fit ​​groove is provided with a corresponding anti-detachment groove. The first snap-fit ​​strip can be inserted into the first snap-fit ​​groove, and the barb engages with the anti-detachment groove. When the decorative strip and the corner protector are assembled, a buffer cavity is formed between the decorative strip and the inclined surface. The inner wall of the decorative strip is provided with reinforcing ribs.

2. The corner guard with reinforced structure according to claim 1, characterized in that: The reinforcing ribs extend along the width of the decorative strip, and the surface of the decorative strip is provided with decorative raised patterns extending along the length.

3. The corner guard with reinforced structure according to claim 1, characterized in that: The buffer cavity is provided with a support and shock-absorbing layer, and the inclined surface is provided with positioning columns, which can be paired and inserted into the support and shock-absorbing layer.

4. The corner guard with reinforced structure according to claim 3, characterized in that: The supporting damping layer is grid-shaped, and the positioning post can be inserted into any one of the grid holes of the supporting damping layer.

5. The corner guard with reinforced structure according to any one of claims 1-4, characterized in that: The positioning slot is T-shaped. The side wall of the positioning strip is provided with limiting fins, and the middle of the positioning strip is provided with a compression cavity. When the positioning strip is inserted into the positioning slot, the limiting fins undergo elastic deformation and fold inward. The limiting fins compress the positioning strip and cause elastic deformation. After the positioning strip is inserted into the positioning slot, the limiting fins and the positioning strip return to their original deformation and fit against the inner wall of the positioning slot.

6. The corner guard with reinforced structure according to any one of claims 1-4, characterized in that: The inner wall of the corner protector strip is provided with a base adhesive layer, and the surface of the base adhesive layer is covered with a release layer.

7. The corner guard with reinforced structure according to any one of claims 1-4, characterized in that: The inner wall of the side pressing edge has a second snap-fit ​​groove, and the edge of the first snap-fit ​​groove is provided with a second snap-fit ​​strip that matches the second snap-fit ​​groove.