U-shaped corner bead mesh

The U-shaped corner mesh, made from galvanized sheet formed by one-piece stamping, solves the problems of cumbersome installation, easy corrosion, and fixed size of traditional corner mesh, and improves structural stability and decorative effect, making it suitable for use with a variety of decorative accessories.

CN224549533UActive Publication Date: 2026-07-24MEIFEI BUILDING MATERIALS (HEBEI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MEIFEI BUILDING MATERIALS (HEBEI) CO LTD
Filing Date
2025-09-19
Publication Date
2026-07-24

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    Figure CN224549533U_ABST
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Abstract

The utility model relates to the field of building decoration discloses U type corner guard net, including corner guard net body, the corner guard net body is integrally punch formed by a galvanized sheet, the corner guard net body is without any welding structure after forming, the both sides edge of corner guard net body is provided with grid respectively, the grid is used for strengthening the adhesion of plastering layer and corner guard net body when plastering and puttying, the middle part of corner guard net body forms U type groove, the U type groove is used for accommodating the accessory for decoration to realize the decorative modeling function, the grid and corner guard net body are integrally formed by the same galvanized sheet through stamping, and the mesh shape of grid is diamond. In the utility model, the corner guard net body is integrally punch formed by a galvanized sheet, and there is no any welding structure, can more stably provide the shaping support for the wall corner, the decorative line, ensures that the modeling keeps regular after the decoration is completed, reduces the secondary maintenance because of the corner deformation, and further improves the durability of wall decoration quality.
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Description

Technical Field

[0001] This utility model relates to the field of building decoration, and in particular to U-shaped corner protectors. Background Technology

[0002] In the field of architectural decoration, U-shaped corner guards are a functional component commonly used at wall corners and decorative lines. Their core function is to shape the decorative design while protecting the corner area of ​​the wall from collision damage. They have the dual functions of structural support and decorative beautification, ensuring the regularity of the wall decoration design and improving the visual harmony of the overall decoration. They are widely used in residential, commercial spaces and other indoor and outdoor decoration scenarios.

[0003] Traditional corner protector structures are mainly divided into two categories: one is the split-type plastic corner protector, which consists of a plastic corner protector strip and a metal fixing bracket. The metal bracket is fixed to the wall with expansion screws, and the plastic corner protector strip is then snapped onto the bracket. The corner protector function is achieved through separate assembly. The other type is the welded metal corner protector, which is composed of multiple metal plates spliced ​​together into a U-shaped structure through a welding process. After welding, the welded joints need to be ground before it can be used for wall decoration. In the split-type plastic corner protector, the plastic strip mainly serves a decorative and concealing function, while the metal bracket provides structural support. The welded metal corner protector ensures the stability of the shape through the rigidity of the metal material, and the U-shaped groove can be used to place simple decorative items.

[0004] Existing corner protector structures have significant shortcomings. Split plastic corner protectors require step-by-step assembly, making the installation process cumbersome. Gaps easily appear at the joints between the plastic corner protector strips and the metal brackets, leading to dust accumulation and mold growth over time, affecting the decorative effect. Welded metal corner protectors are formed by welding multiple metal plates together. The welding points not only damage the anti-rust layer on the metal surface but are also prone to rust and corrosion, reducing the overall structural stability. If the weld is not strong, the corner protector is prone to deformation. The U-shaped groove dimensions of traditional corner protectors are mostly fixed values, which cannot be adapted to different specifications of plastic strips, light strips, and other decorative accessories, resulting in extremely poor versatility. Different sizes of corner protectors need to be customized for different scenarios, increasing decoration costs. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a U-shaped corner protector, which aims to improve the problems of the need for step-by-step assembly of plastic corner protectors in existing equipment, the cumbersome installation process, and the easy rusting and corrosion at the welded joints.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: U-shaped corner bead mesh includes a corner bead mesh body, which is integrally stamped from a single galvanized sheet. The corner bead mesh body has no welded structure after forming. The two sides of the corner bead mesh body are respectively provided with mesh, which is used to enhance the adhesion between the plaster layer and the corner bead mesh body when plastering and puttingtying. A U-shaped groove is formed in the middle of the corner bead mesh body, which is used to accommodate decorative accessories to achieve decorative shaping function. As a further description of the above technical solution: The mesh and the corner guard body are formed by stamping from the same galvanized sheet, and the mesh openings are diamond-shaped. As a further description of the above technical solution: The width of the U-shaped groove is 10mm-90mm. The U-shaped groove with the corresponding width can be selected according to the size requirements of the accessories in the decorative scene. The decorative accessories that can be accommodated in the U-shaped groove include plastic strips and light strips. As a further description of the above technical solution: The thickness of the galvanized sheet of the corner guard body is 0.3mm-1.2mm, and the thickness of the galvanized layer on the surface of the galvanized sheet is not less than 8μm; As a further description of the above technical solution: The mesh openings have a side length of 5mm-15mm, and the mesh spacing is evenly distributed to ensure that the mortar can fully fill the mesh openings when plastering and applying putty. As a further description of the above technical solution: The bottom of the U-shaped groove has an arc-shaped transition structure to avoid sharp edges that could damage decorative accessories during installation, while also improving the overall structural strength of the corner guard mesh.

[0007] This utility model has the following beneficial effects: 1. In this utility model, the corner guard mesh body is integrally stamped from a single galvanized sheet without any welding structure, thus avoiding the problem of welding points damaging the anti-rust layer. Combined with the corrosion resistance of the galvanized sheet itself, the rust resistance of the corner guard mesh is greatly improved, allowing it to be used for a long time even in humid environments. The integral stamping process makes the structure of the corner guard mesh body more continuous, with no splicing gaps, improving overall rigidity and making it less prone to deformation. This solves the defects of traditional welded corner guards, such as weak welding and easy deformation.

[0008] 2. In this utility model, the stamped mesh structure on both sides of the edge allows the mortar to fully fill the mesh holes. When plastering and applying putty, the mortar not only adheres to the surface of the corner guard, but also greatly enhances the adhesion between the plaster layer and the corner guard mesh. The mesh spacing is uniform, ensuring a smooth surface after plastering, improving the durability of the decorative effect, and avoiding the problems of plaster hollowing and falling off caused by the lack of mesh in traditional corner guards. Attached Figure Description

[0009] Figure 1This is a main body diagram of the U-shaped corner protector netting proposed in this utility model; Figure 2 This is a schematic diagram of the U-shaped corner protector mesh proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0010] Legend: 1. Corner guard body; 2. Mesh; 3. U-shaped groove. Detailed Implementation

[0011] 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.

[0012] Reference Figures 1-3 This utility model provides an embodiment of a U-shaped corner bead mesh, comprising a corner bead mesh body 1. The corner bead mesh body 1 utilizes the characteristics of galvanized steel sheet to provide long-term, stable, and rigid support for wall decoration, effectively preventing deformation or breakage of the corner bead. Simultaneously, it avoids damage to the anti-rust layer at welding points. Combined with the inherent corrosion resistance of galvanized steel sheet, it significantly improves rust resistance, allowing for long-term use even in humid environments. Furthermore, its strong structural continuity further ensures the stability of the wall decoration. The corner bead mesh body 1 is integrally stamped from a single galvanized steel sheet, with no welding structures after forming. Mesh is provided on both sides of the corner bead mesh body 1. Mesh 2 is used to enhance the adhesion between the plaster layer and the corner bead mesh body when plastering and puttingtying. It not only limits the shrinkage and deformation of the plaster layer, but also increases the contact area between the mortar and the corner bead mesh body 1, thereby enhancing the adhesion between the plaster layer and the corner bead mesh body 1, significantly reducing the plaster layer peeling rate, while ensuring a smooth surface after plastering, improving the durability of the decorative effect, and solving the problem of insufficient plaster layer adhesion and easy hollowing and peeling caused by the smooth surface of traditional corner bead mesh. A U-shaped groove 3 is formed in the middle of the corner bead mesh body 1. The U-shaped groove 3 is used to accommodate decorative accessories to achieve the decorative shape function. Mesh 2 and corner bead mesh body 1 are formed by stamping the same galvanized sheet.

[0013] Reference Figures 1-3The mesh shape of grid 2 is diamond-shaped. The width of U-shaped channel 3 is 10mm-90mm. The width of U-shaped channel 3 can be selected according to the size requirements of the accessories in the decorative scene. Decorative accessories that can be accommodated in U-shaped channel 3 include plastic strips and light strips. The thickness of the galvanized sheet of corner guard mesh body 1 is 0.3mm-1.2mm, and the thickness of the galvanized layer on the surface of the galvanized sheet is not less than 8μm. The side length of the mesh of grid 2 is 5mm-15mm. The spacing of grid 2 is evenly distributed to ensure that the mortar can fully fill the mesh when plastering and puttingtying. The bottom of U-shaped channel 3 is an arc transition structure to avoid sharp edges at the bottom of the channel that may damage the decorative accessories during installation. At the same time, it improves the overall structural strength of corner guard mesh body 1 and can also shield and protect decorative accessories, reduce the corrosion of accessories by dust and moisture, and extend the service life of accessories.

[0014] Working Principle: First, the corner bead mesh body 1 is integrally stamped from a single galvanized sheet without any welding structure. This design ensures extremely strong structural continuity. Combined with a galvanized layer of at least 8μm and a sheet thickness of 0.3mm-1.2mm, it effectively isolates air and moisture from contact with the metal substrate, significantly reducing the risk of corrosion. It also provides long-term, stable, and rigid support for wall decoration, preventing corner bead deformation or breakage. When plastering or applying putty, the mesh 2, formed integrally from the same galvanized sheet as the corner bead mesh body 1, has diamond-shaped mesh openings with sides of 5mm-15mm and evenly distributed spacing. Mortar fully penetrates the mesh openings of mesh 2. Mesh 2 restricts the shrinkage and deformation of the plaster layer and significantly increases the contact area between the mortar and the corner bead mesh body 1, enhancing the adhesion between the plaster layer and the corner bead mesh body 1. This effectively prevents plaster layer hollowing and peeling, ensuring the durability of the decorative effect.

[0015] The U-shaped channel 3 has a width of 10mm-90mm, which can be selected according to the size requirements of accessories in the decorative scene. It can accommodate decorative accessories such as plastic strips and light strips, enabling decorative shapes to be achieved. At the same time, the channel walls can also position the accessories. In addition, the bottom of the U-shaped channel 3 has an arc-shaped transition structure, avoiding damage to the decorative accessories during installation due to sharp edges, and further enhancing the overall structural strength of the corner guard mesh body 1. After the corner guard mesh body 1 is installed and fixed, the plaster layer in the mesh area on both sides is flush with the wall surface, and the accessories in the U-shaped channel 3 form decorative lines. Relying on the metal rigidity of the corner guard mesh body 1, it ensures the straightness of decorative shapes such as corner lines and the centering of accessories in the channel, while also preventing the shape from being damaged by collisions during subsequent decoration.

[0016] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A U-shaped corner protector, comprising a corner protector body (1), characterized in that: The corner bead mesh body (1) is integrally stamped from a single galvanized sheet. After the corner bead mesh body (1) is formed, there is no welding structure. Mesh (2) is provided on both sides of the corner bead mesh body (1). The mesh (2) is used to enhance the adhesion between the plaster layer and the corner bead mesh body when plastering and puttingtying. A U-shaped groove (3) is formed in the middle of the corner bead mesh body (1). The U-shaped groove (3) is used to accommodate decorative accessories to achieve the decorative shaping function.

2. The U-shaped corner protector according to claim 1, characterized in that: The mesh (2) and the corner guard mesh body (1) are formed by stamping from the same galvanized sheet, and the mesh (2) has a rhomboid shape.

3. The U-shaped corner protector according to claim 1, characterized in that: The width of the U-shaped groove (3) is 10mm-90mm. The U-shaped groove (3) of the corresponding width can be selected according to the size requirements of the accessories in the decorative scene. The decorative accessories that can be accommodated in the U-shaped groove (3) include plastic strips and light strips.

4. The U-shaped corner protector according to claim 1, characterized in that: The thickness of the galvanized sheet of the corner guard body (1) is 0.3mm-1.2mm, and the thickness of the galvanized layer on the surface of the galvanized sheet is not less than 8μm.

5. The U-shaped corner protector according to claim 2, characterized in that: The mesh (2) has a side length of 5mm-15mm and the mesh (2) is evenly distributed to ensure that the mortar can fully fill the mesh when plastering and puttingtying.

6. The U-shaped corner protector according to claim 3, characterized in that: The bottom of the U-shaped groove (3) is an arc transition structure to avoid sharp edges from appearing at the bottom of the groove, which could damage the decorative accessories during installation, while also improving the overall structural strength of the corner guard mesh.