Double-layer wall corner protector
By using a double-layer wall corner protector design, the outer substrate has patterns and colors, while the inner substrate is attached to the wall. It is made of PP and PVC materials, and is injection molded and hot melt compression molded. This solves the problem of high cost for small-batch customization of single-layer wall corner protectors, and enables mass production and cost reduction.
Patent Information
- Application Number
- CN202520365659.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Existing single-layer wall corner protectors have high production costs for small batches due to varying customization requirements for patterns and colors.
It adopts a double-layer structure. The outer substrate has markings and colors, while the inner substrate is used to adhere to the wall. The outer substrate is made of PP and the inner substrate is made of PVC. They are connected by injection molding and hot melt compression molding. The outer and inner substrates are tightly bonded by barbs and patterned grooves, enabling mass production.
This reduces the cost of small-batch production of wall corner protectors with different patterns and colors, improves the product's durability and aesthetics, and enhances safety.
Smart Images

Figure CN223805810U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building decoration technical field, especially a double -layered wall corner. BACKGROUND
[0002] Wall corner is a protective device installed at the corner of the wall, aiming to prevent the wall from being collided, scratched or damaged in other forms that may occur in daily activities. They not only help to protect the wall surface from damage, but also enhance the overall aesthetics of indoor decoration. In addition, various patterns and colors will be designed on the outer surface of the wall corner as needed, such as different color reflective strip identification patterns in underground parking lots, special identification patterns or colors in manufacturing workshops, etc. Wall corners are mainly made of PVC, acrylic, aluminum alloy, rubber and other materials, and are formed by injection molding, hot bending, bending and vulcanization processes. At present, various wall corners are directly formed by a single material, but different users on the market have different customization needs for the patterns and colors on the outer surface of the wall corner, and the production cost of single-layer wall corner is high. Therefore, it is necessary to improve the existing single-layer wall corner. SUMMARY
[0003] The utility model aims to provide a double -layered wall corner, effectively solve the problem of high cost of small batch production of the existing single -layered wall corner with different patterns and colors.
[0004] To solve the above technical problems, the utility model provides the following technical scheme:
[0005] A double -layered wall corner, comprising an outer layer base body and an inner layer base body fixedly attached to the inner side of the outer layer base body, the outer surface of the outer layer base body is provided with an identification pattern and / or color, and the inner surface of the inner layer base body is used for attaching to the wall.
[0006] More preferably, the material of the outer layer base body is PP, and the material of the inner layer base body is PVC.
[0007] More preferably, the outer layer base body is an injection molded shell, and the inner layer base body is compression molded in the form of a hot melt soft material in the outer layer base body.
[0008] More preferably, a patterned groove is formed on one side of the outer layer base body and the inner layer base body.
[0009] More preferably, a plurality of barb portions are further provided on the side of the outer layer base body and the inner layer base body, and the cross-sectional area of the barb portion gradually increases inward from the position connected to the inner surface of the outer layer base body.
[0010] More preferably, the cross section of the barb portion is elliptical.
[0011] Further preferably, the two vertical edges of the inner layer substrate are each provided with a second inclined surface gradually transitioning to the wall surface, and the two vertical edges of the outer layer substrate are each provided with a first inclined surface coplanar with the second inclined surface.
[0012] Further preferably, the outer layer substrate comprises two first substrates integrally formed at a preset angle, and the inner layer substrate comprises two second substrates integrally formed at the preset angle.
[0013] Further preferably, the outer edges of the outer layer substrate are each provided with a rounded corner, and the junctions of the two first substrates of the outer layer substrate are also provided with rounded corners.
[0014] Further preferably, the outer layer substrate is uniformly provided with a plurality of first mounting holes, and the inner layer substrate is provided with a plurality of second mounting holes corresponding to the first mounting holes.
[0015] The double-layered wall corner provided by the utility model can meet the small-batch customization requirements of different patterns and colors of customers, and can only produce small batches of outer layer substrates with different patterns and colors, and then connect and fix the outer layer substrates with the uniformly produced inner layer substrates to produce finished products, so that the double-layered wall corner in the embodiment can uniformly use materials and processes for the inner layer substrate part and the fixing and assembling process of the inner layer substrate and the outer layer substrate, and is convenient for mass production, and can reduce the production and manufacturing cost of the small-batch production of wall corners with different patterns and colors. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to the drawings without creating any creative labor.
[0017] Figure 1 It is a three-dimensional structure schematic view of the double-layered wall corner provided by one specific embodiment of the utility model;
[0018] Figure 2 It is a three-dimensional structure schematic view of the double-layered wall corner provided by another specific embodiment of the utility model;
[0019] Figure 3 It is a three-dimensional structure schematic view of the double-layered wall corner provided by another specific embodiment of the utility model;
[0020] Figure 4The utility model discloses a kind of stereoscopic structure schematic diagram of outer layer matrix provided in one of specific implementation manners in the utility model;
[0021] Figure 5 The utility model discloses a kind of stereoscopic structure schematic diagram of outer layer matrix provided in two of specific implementation manners in the utility model;
[0022] Figure 6 The utility model discloses a kind of overhead structure schematic diagram of double-layered wall corner provided in one of specific implementation manners in the utility model.
[0023] Marked in drawing as follows:
[0024] 100, outer layer matrix;101, patterned groove;102, barb portion;103, first inclined surface;104, first base plate;105, first mounting hole;200, inner layer matrix;201, second inclined surface;202, second base plate. Specific implementation
[0025] The core of the utility model is to provide a kind of double-layered wall corner, which effectively solves the problem of high cost of small batch production of single-layered wall corner with different pattern colors.
[0026] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0027] Please refer to Figures 1 to 6 , Figure 1 The utility model discloses a kind of stereoscopic structure schematic diagram of double-layered wall corner provided in one of specific implementation manners in the utility model; Figure 2 The utility model discloses a kind of stereoscopic structure schematic diagram of double-layered wall corner provided in two of specific implementation manners in the utility model; Figure 3 The utility model discloses a kind of stereoscopic structure schematic diagram of double-layered wall corner provided in three of specific implementation manners in the utility model; Figure 4 The utility model discloses a kind of stereoscopic structure schematic diagram of outer layer matrix provided in one of specific implementation manners in the utility model (mainly show the inner side of outer layer matrix); Figure 5 The utility model discloses a kind of stereoscopic structure schematic diagram of outer layer matrix provided in two of specific implementation manners in the utility model (mainly show the inner side of outer layer matrix); Figure 6 The utility model discloses a kind of overhead structure schematic diagram of double-layered wall corner provided in one of specific implementation manners in the utility model.
[0028] In a specific embodiment, the double-layered corner protector provided by the utility model includes an outer base body 100 and an inner base body 200 fixedly attached to the inner side of the outer base body 100, and the outer surface of the outer base body 100 is provided with an identification pattern and / or color, such as Figures 1-3 The outer side of the outer base body 100 is shown with different patterns, and the inner surface of the inner base body 200 is used to be attached to a wall body.
[0029] The double-layered corner protector provided by the embodiment of the application can only produce the outer base body 100 with different patterns and colors in small batches when producing the double-layered corner protector, and then the outer base body 100 is connected and fixed with the uniformly produced inner base body 200 to produce a finished product, so that the double-layered corner protector in the embodiment of the application can uniformly use materials and processes for the inner base body 200 part and the fixing and assembling process of the inner base body 200 and the outer base body 100 when producing, which facilitates mass production and can reduce the production cost of the corner protector with different patterns and colors produced in small batches.
[0030] In some embodiments, preferably, the material of the outer base body 100 is PP, and the material of the inner base body 200 is PVC. The PP material can have different external color structures by adjusting different color master batches, and the color change can produce a multi-color appearance, which can increase the warning effect in the use scenario and enhance the safety.
[0031] In some embodiments, preferably, the outer base body 100 is an injection-molded shell, and the inner base body 200 is compression-molded in the outer base body 100 in the form of a hot-melt soft material. The compression molding process can ensure the firmness of the combination of the outer base body 100 and the inner base body 200, avoid the separation or delamination phenomenon caused by insufficient firmness of the combination of the inner and outer layers, and increase the service life of the product.
[0032] On the basis of the above-mentioned embodiments, preferably, a patterned groove 101 is formed on the side of the outer base body 100 connected to the inner base body 200. The outer base body 100 and the hot-melt inner base body 200 material are compression-molded, the patterned protrusions extend into the inner layer material, the two are combined tightly, and an organic whole is formed, which can further improve the firmness of the combination of the outer base body 100 and the inner base body 200.
[0033] On the basis of the above-mentioned embodiments, a plurality of barbs 102 are arranged on the side of the outer layer base 100 connected to the inner layer base 200, the cross-sectional area of the barbs 102 gradually increases from the position connected to the inner surface of the outer layer base 100 to the inside, the outer layer base 100 is fused with the material of the inner layer base 200, and the barbs 102 are inserted into the material of the inner layer base 200 after compression molding, so that the outer layer base 100 and the inner layer base 200 are combined tightly to form an organic whole, and the fastness of the combination of the outer layer base 100 and the inner layer base 200 is further improved.
[0034] On the basis of the above-mentioned embodiments, preferably, the cross section of the barbs 102 is elliptical to increase the fastness of the connection between the barbs 102 and the outer layer base 100.
[0035] In some embodiments, preferably, the two vertical edges of the inner layer base 200 are provided with second inclined surfaces 201 gradually transitioning to the wall surface, and the two vertical edges of the outer layer base 100 are provided with first inclined surfaces 103 coplanar with the second inclined surfaces 201. In this way, the thickness between the vertical edges of the corner protector and the wall body can gradually decrease, the integration with the wall surface can be increased, the corner protector is more beautiful and less likely to be peeled off from the wall surface by external force.
[0036] In some embodiments, the outer layer base 100 comprises two first base plates 104 integrally formed at a preset angle, and the inner layer base 200 comprises two second base plates 202 integrally formed at a preset angle. That is, the corner protector is provided in the form of two flat plates combined together. Of course, in other embodiments, the corner protector can also be in the form of a curved surface.
[0037] On the basis of the above-mentioned embodiments, the outer edges of the outer layer base 100 are provided with rounded corners, and the junction of the external corners of the two first base plates 104 of the outer layer base 100 is also provided with a rounded corner, so that the surface of the corner protector is smoother, the probability of knocking against other objects and being damaged by other objects is reduced, and the safety and service life are increased.
[0038] In some embodiments, a plurality of first mounting holes 105 are uniformly machined on the outer layer base 100, and the inner layer base 200 is machined with a plurality of second mounting holes corresponding to the first mounting holes 105, which are not shown in the figure. The first mounting holes 105 and the second mounting holes facilitate the nailing of the double-layer corner protector on the wall body.
[0039] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0040] The double-layered wall corner provided by the utility model is described in detail. The principle and implementation mode of the utility model are described by applying specific examples, and the description of the above examples is only used for helping to understand the method and core idea of the utility model. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claim. Therefore, the utility model will not be limited to the examples shown in the text, but will meet the widest scope consistent with the principle and novel features disclosed in the text.
Claims
1. A double-layered corner bead, characterized by, The wall decoration comprises an outer base (100) and an inner base (200) fixedly attached to the inner side of the outer base (100), the outer surface of the outer base (100) is provided with an identification pattern and / or color, and the inner surface of the inner base (200) is used to be attached to the wall.
2. The dual-layer corner guard of claim 1, wherein, The material of the outer base (100) is PP, and the material of the inner base (200) is PVC.
3. The dual-layer corner guard of claim 2, wherein, The outer base (100) is an injection molded shell, and the inner base (200) is compression molded in the outer base (100) in the form of hot melt soft material.
4. The dual-layer corner guard of claim 3, wherein, The surface of the outer base (100) connected with the inner base (200) is formed with a patterned groove (101).
5. The dual-layer corner of claim 4, wherein, The surface of the outer base (100) connected with the inner base (200) is also provided with a plurality of barbs (102), and the cross-sectional area of the barbs (102) gradually increases inward from the position connected with the inner surface of the outer base (100).
6. The dual-layer corner guard of claim 5, wherein, The cross section of the barbs (102) is elliptical.
7. The dual-layer corner guard of claim 1, wherein, Both vertical edges of the inner base (200) are provided with a second inclined surface (201) gradually transitioning to the wall surface, and both vertical edges of the outer base (100) are provided with a first inclined surface (103) coplanar with the second inclined surface.
8. The dual-layer corner guard of claim 1, wherein, The outer base (100) comprises two first base plates (104) integrally formed at a preset angle, and the inner base (200) comprises two second base plates (202) integrally formed at the preset angle.
9. The dual-layer corner of claim 8, wherein, The outer edges of the outer base (100) are provided with rounded corners, and the junction of the external corners of the two first base plates (104) of the outer base (100) is also provided with a rounded corner.
10. The dual-layer corner guard of claim 1, wherein, A plurality of first mounting holes (105) are uniformly distributed on the outer base (100), and a plurality of second mounting holes corresponding to the first mounting holes (105) are formed on the inner base (200).