High-strength weather-resistant automobile rubber plug cover

Abstract

This utility model discloses a high-strength, weather-resistant automotive rubber plug, relating to the field of rubber plug technology. The utility model includes a plug body with a locking ring fixedly connected to its bottom. The plug body includes a base layer, and a wear-resistant layer is fixedly connected to the top of the base layer. The core of this utility model lies in the built-in stainless steel reinforcing layer that matches the overall shape, providing a robust framework that effectively resists squeezing during installation and disassembly, vibration and impact during driving, and accidental collisions. Simultaneously, the matrix material is a composite material of aramid fiber and fluororubber. The extremely high tensile strength of the aramid fiber further endows the plug body with excellent impact resistance. Furthermore, the surface silane-modified polyurethane coating ensures elastic adhesion, preventing coating cracking due to deformation; and the application of ultra-high molecular weight polyethylene material significantly reduces installation and frictional resistance.

Description

Technical Field

[0001] This utility model belongs to the field of rubber plug technology, and in particular relates to a high-strength, weather-resistant automotive rubber plug. Background Technology

[0002] As a key component of the automotive sealing and protection system, automotive rubber plugs play an indispensable role in the production and use of automobiles. They are mainly installed in various holes in the car body (such as pre-drilled holes in the frame and sheet metal holes), pipeline ports in the engine compartment, chassis component connection ports, etc. Through their own elastic deformation, they fit tightly with the installation location to achieve a sealing and protection function, preventing rainwater, dust, mud, corrosive gases and other external environmental factors from entering the internal structure of the car. A Chinese patent application with publication number CN102602457A discloses a rubber sheath plug for automotive parts, including a plug body. The plug body includes a flat surface and a grooved surface. The invention is characterized by: an arc-shaped chamfer at the outer edge of the grooved surface, and a rectangular groove on the outer cylindrical surface between the flat surface and the grooved surface. This invention has the functions of dustproof, waterproof and sealing. Moreover, the arc-shaped chamfer can facilitate the plug to be easily inserted into the part, and the rectangular groove can match the parts on the car, making the plug less likely to fall off. While this patent allows for easy insertion of components, it still suffers from drawbacks such as low strength and poor weather resistance. On one hand, its strength is relatively low. Due to the use of a single rubber material and the lack of structural reinforcement, traditional rubber plugs are prone to deformation, damage, or even detachment when subjected to external forces (such as vibrations and impacts during vehicle operation, external pressure during installation and disassembly, or accidental collisions with other components). This not only results in the loss of its sealing and protective function but may also allow external impurities to enter the vehicle, affecting the normal operation of related components and even posing safety hazards. On the other hand, it has poor weather resistance. Cars will face a variety of complex climate environments and working conditions during use, such as high temperature exposure, low temperature, rain immersion, moisture, ultraviolet radiation, and corrosion from road salt, oil and other corrosive substances. Traditional rubber plugs are prone to aging after being subjected to these harsh conditions for a long time due to the insufficient weather resistance of the material itself. To address these issues, we provide a high-strength, weather-resistant automotive rubber plug. Utility Model Content

[0003] The purpose of this invention is to provide a high-strength, weather-resistant automotive rubber plug. By combining an anti-ultraviolet layer, a corrosion-resistant layer, and a reinforcing layer, it solves the problems of low strength and poor weather resistance in existing automotive rubber plugs, which lead to easy deformation due to external forces and rapid aging due to corrosion.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0005] This utility model is a high-strength, weather-resistant automotive rubber plug, comprising a plug body, a locking ring fixedly connected to the bottom of the plug body, a base layer, a wear-resistant layer fixedly connected to the top of the base layer, an anti-ultraviolet layer fixedly connected to the bottom of the wear-resistant layer, a corrosion-resistant layer fixedly connected to the bottom of the anti-ultraviolet layer, and a reinforcing layer fixedly connected to the bottom of the corrosion-resistant layer.

[0006] The present invention is further configured such that the reinforcing layer includes a reinforcing mesh, and an embedded reinforcing layer is fixedly connected to the top of the reinforcing mesh. The embedded reinforcing layer is made of aramid fiber reinforced fluororubber. The reinforcing layer is embedded inside the plug body and is made of stainless steel. Its structure is adapted to the external structure of the plug body. The built-in reinforcing layer can significantly improve the overall structural strength of the plug body and prevent the plug body from deforming or breaking due to external forces. Aramid fiber has extremely high tensile strength and temperature resistance. When combined with fluororubber, it can greatly improve the impact resistance of the plug body and has excellent weather resistance, preventing the plug body from aging and breaking in harsh environments, and further enhancing the impact resistance and deformation resistance of the plug body.

[0007] The present invention is further provided that the front and rear sides of the plug body are provided with buckle grooves, and the inner wall of the buckle groove is provided with anti-slip texture. The anti-slip properties of the inner wall of the buckle groove are good, making it convenient for personnel to insert their fingers into it to pry up the car rubber plug and remove it from the car parts.

[0008] The present invention is further configured such that an anti-pressure strip is fixedly connected to the top of the plug body. The anti-pressure strip is trapezoidal in shape. The array of trapezoidal anti-pressure strips is arranged on the top of the plug body, which can buffer external forces and prevent external forces from contacting the top of the plug body over a large area, thus preventing the plug body from being deformed by pressure.

[0009] The present invention is further configured such that an anti-detachment ring is fixedly connected to the outer surface of the clamping ring, and the surface of the anti-detachment ring is provided with anti-slip particles. The anti-detachment ring has high friction, which can greatly improve the insertion stability of the automotive rubber plug as the clamping ring is inserted into the automotive component.

[0010] The present invention is further configured such that the base layer is made of silane-modified polyurethane, and the wear-resistant layer is made of a composite coating of ultra-high molecular weight polyethylene and ceramic microspheres. Silane-modified polyurethane has excellent elasticity and adhesion to rubber materials. The silicon-oxygen bonds in its molecular structure can form stable chemical bonds with the hydroxyl groups on the rubber surface of the plug body. At the same time, the elasticity of the polyurethane chain segments can match the deformation characteristics of the rubber material, avoiding cracking and peeling of the coating due to vibration or temperature changes of the plug body. Ultra-high molecular weight polyethylene has an extremely low coefficient of friction, which can reduce frictional damage between the plug body and the mounting hole during installation and disassembly, and reduce wear on the surface of the plug body from mud, sand and stones during vehicle driving. Ceramic microspheres have extremely high hardness and can form a "hard protective layer" on the coating surface to resist scratches and impacts from external hard objects, preventing scratches on the coating from exposing the internal structure, ensuring the integrity of the base layer, the anti-ultraviolet layer and the corrosion-resistant layer, and extending the overall service life of the plug body.

[0011] The present invention is further configured such that the material of the anti-ultraviolet layer is nano-grade zinc oxide, and the material of the corrosion-resistant layer is modified fluororubber. Nano-grade zinc oxide has extremely strong ultraviolet absorption capacity, which can effectively block UVA and prevent ultraviolet rays from penetrating the coating and causing aging damage to the rubber material of the plug body. Modified fluororubber itself has excellent chemical corrosion resistance and can resist the erosion of road salt, engine compartment oil stains, rainwater acidic substances, etc.

[0012] The present invention has the following beneficial effects.

[0013] 1. The core of this utility model lies in the built-in stainless steel reinforcing layer that matches the shape, which provides a solid framework for the whole and can effectively resist the squeezing during installation and disassembly, the vibration and impact during driving, and accidental collisions. At the same time, the matrix material is a composite material of aramid fiber and fluororubber. The extremely high tensile strength of aramid fiber further endows the plug body with excellent impact resistance. In addition, the silane-modified polyurethane coating on the surface ensures elastic adhesion and avoids coating cracking caused by deformation. The application of ultra-high molecular weight polyethylene material significantly reduces installation and friction resistance and reduces wear. This multi-composite reinforcement design together ensures the sealing reliability and long-term durability of the plug body under complex stress conditions.

[0014] 2. This utility model exhibits exceptional weather resistance. Its multi-layered protective system can comprehensively cope with various harsh environments. The surface layer of nano-grade zinc oxide, as a highly efficient ultraviolet absorber, can strongly block UVA and UVB, preventing the rubber body material from aging and becoming brittle due to sun exposure. The modified fluororubber used in the plug body has excellent chemical corrosion resistance, effectively resisting the erosion of corrosive substances such as road de-icing salt, engine compartment oil stains, and acid rain. At the same time, the ceramic microspheres doped in the coating give the surface extremely high hardness, forming a sturdy "armor" that can resist the scratches and impacts of hard objects such as mud, sand, and stones, protecting the integrity of the internal functional layers. This comprehensive protection, from UV resistance and chemical corrosion resistance to physical wear resistance, ensures stable performance in high-temperature, cold, humid, and corrosive environments, greatly extending its service life. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0016] Figure 1 A three-dimensional high-strength, weather-resistant automotive rubber plug Figure 1 .

[0017] Figure 2 A three-dimensional high-strength, weather-resistant automotive rubber plug Figure 2 .

[0018] Figure 3 This is a partial cross-sectional schematic diagram of the plug body in a high-strength, weather-resistant automotive rubber plug.

[0019] Figure 4 A high-strength, weather-resistant automotive rubber plug Figure 3 A magnified view of a portion of point A in the middle.

[0020] Figure 5 This is a cross-sectional schematic diagram of the reinforcing layer in a high-strength, weather-resistant automotive rubber plug.

[0021] In the attached diagram: 1. End cap body; 2. Clamping ring; 101. Base layer; 102. Wear-resistant layer; 103. UV-resistant layer; 104. Corrosion-resistant layer; 105. Reinforcing layer; 1051. Reinforcing mesh; 1052. Embedded reinforcing layer; 3. Clip groove; 4. Pressure-resistant strip; 5. Anti-detachment ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-5This utility model is a high-strength weather-resistant automotive rubber plug, including a plug body 1, a clamping ring 2 fixedly connected to the bottom of the plug body 1, a base layer 101, a wear-resistant layer 102 fixedly connected to the top of the base layer 101, an anti-ultraviolet layer 103 fixedly connected to the bottom of the wear-resistant layer 102, a corrosion-resistant layer 104 fixedly connected to the bottom of the anti-ultraviolet layer 103, and a reinforcing layer 105 fixedly connected to the bottom of the corrosion-resistant layer 104.

[0024] Specifically: The movable plug body 1 is inserted into the mounting hole of the corresponding automotive component by the locking ring 2 at its bottom. The locking ring 2 is tightly locked in the inner cavity of the mounting hole, and the plug body 1 seals the mounting hole of the corresponding automotive component. During use, the wear-resistant layer 102 improves the wear resistance of the top of the plug body 1, resists the scratches and impacts of external hard objects, and avoids scratches on the coating that would expose the internal structure. The reinforcing layer 105 can greatly improve the impact resistance of the plug body 1, and prevent the plug body 1 from deforming and breaking due to external forces. The UV-resistant layer 103 can effectively block UVA, and prevent ultraviolet rays from penetrating the coating and causing aging damage to the rubber material of the plug body 1. The corrosion-resistant layer 104 can resist the corrosion of road salt, engine compartment oil, rainwater acidic substances, etc.

[0025] The reinforcing layer 105 includes a reinforcing mesh 1051, with an embedded reinforcing layer 1052 fixedly connected to the top of the reinforcing mesh 1051. The embedded reinforcing layer 1052 is made of aramid fiber reinforced fluororubber. The front and rear sides of the plug body 1 are provided with fastening grooves 3, and the inner wall of the fastening grooves 3 is provided with anti-slip textures. The outer surface of the locking ring 2 is fixedly connected with an anti-detachment ring 5, and the surface of the anti-detachment ring 5 is provided with anti-slip particles. The base layer 101 is made of silane modified polyurethane. The wear-resistant layer 102 is made of a composite coating of ultra-high molecular weight polyethylene and ceramic microspheres. The UV-resistant layer 103 is made of nano-grade zinc oxide. The corrosion-resistant layer 104 is made of modified fluororubber.

[0026] Specifically: The reinforcing layer 105 is embedded inside the plug body 1 and is made of stainless steel. Its structure is compatible with the external structure of the plug body 1. The built-in reinforcing layer 105 can significantly improve the overall structural strength of the plug body 1, preventing deformation or damage caused by external forces. Aramid fiber has extremely high tensile strength and temperature resistance. When combined with fluororubber, it can greatly improve the impact resistance of the plug body 1, while also possessing excellent weather resistance, preventing aging and breakage of the plug body 1 in harsh environments, further enhancing the strength of the plug body. The body 1 has excellent impact and deformation resistance. The inner wall of the groove 3 has good anti-slip properties, making it easy for personnel to insert their fingers to pry the car rubber plug off the car part. The trapezoidal pressure-resistant strips 4 are arrayed on the top of the plug body 1 to buffer external forces and prevent the plug body 1 from being deformed due to large-area contact with the top of the external force. The anti-detachment ring 5 has high friction, which greatly improves the locking stability of the car rubber plug as the locking ring 2 is inserted into the car part. The silane-modified polyurethane has excellent elasticity. The polyurethane coating exhibits strong adhesion to rubber materials. The silicon-oxygen bonds in its molecular structure can form stable chemical bonds with the hydroxyl groups on the rubber surface of the plug body 1. Simultaneously, the elasticity of the polyurethane chain segments matches the deformation characteristics of the rubber material, preventing coating cracking and peeling due to vibration or temperature changes in the plug body 1. Ultra-high molecular weight polyethylene has an extremely low coefficient of friction, reducing frictional damage between the plug body 1 and the mounting holes during installation and removal, while also reducing wear from mud, sand, and stones on the surface of the plug body 1 during vehicle operation. Ceramic microspheres possess extremely high hardness, forming a "hard protective layer" on the coating surface to resist scratches and impacts from external hard objects, preventing scratches from exposing the internal structure and ensuring the integrity of the base layer 101, the UV-resistant layer 103, and the corrosion-resistant layer 104, thus extending the overall service life of the plug body 1. Nano-grade zinc oxide has extremely strong UV absorption capabilities, effectively blocking UVA and preventing UV penetration into the coating, thus preventing aging damage to the rubber material of the plug body 1. Modified fluororubber itself possesses excellent chemical corrosion resistance, resisting corrosion from road salt, engine compartment oil, and acidic rainwater.

[0027] The working principle of this utility model is as follows: the plug body 1 is moved until the clamping ring 2 at its bottom is inserted into the mounting hole of the corresponding automotive part. The clamping ring 2 is tightly clamped in the inner cavity of the mounting hole, and the plug body 1 seals the mounting hole of the corresponding automotive part. During use, the plug body 1 is reinforced by a reinforcing layer 105 embedded inside. The reinforcing layer 105 is made of stainless steel and its structure is compatible with the external structure of the plug body 1. The built-in reinforcing layer 105 can significantly improve the overall structural strength of the plug body 1 and prevent the plug body 1 from deforming or breaking due to external forces. Aramid fiber has extremely high tensile strength and temperature resistance. After being combined with fluororubber, it can greatly improve the impact resistance of the plug body 1 and has excellent weather resistance, preventing the plug body 1 from aging and breaking in harsh environments, and further enhancing the impact resistance and deformation resistance of the plug body 1. Silane-modified polyurethane has excellent elasticity and adhesion to rubber materials. The silicon-oxygen bonds in its molecular structure can bond with the rubber surface of the plug body 1. Hydroxyl groups form stable chemical bonds, and the elasticity of polyurethane segments can match the deformation characteristics of rubber materials, preventing the coating from cracking and peeling off due to vibration or temperature changes in the plug body 1. Ultra-high molecular weight polyethylene has an extremely low coefficient of friction, which can reduce frictional damage between the plug body 1 and the mounting holes during installation and disassembly, and reduce wear on the surface of the plug body 1 from mud, sand and stones during vehicle operation. Ceramic microspheres have extremely high hardness and can form a "hard protective layer" on the coating surface to resist scratches and impacts from external hard objects, preventing scratches on the coating from exposing the internal structure, ensuring the integrity of the base layer 101, the UV-resistant layer 103 and the corrosion-resistant layer 104, and extending the overall service life of the plug body 1. Nano-grade zinc oxide has extremely strong UV absorption capacity and can effectively block UVA, preventing UV rays from penetrating the coating and causing aging damage to the rubber material of the plug body 1. Modified fluororubber itself has excellent chemical corrosion resistance and can resist corrosion from road salt, engine compartment oil, rainwater acidic substances and other substances.

[0028] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A high-strength, weather-resistant automotive rubber plug, comprising a plug body (1), characterized in that: The bottom of the plug body (1) is fixedly connected to a clamping ring (2). The plug body (1) includes a base layer (101). The top of the base layer (101) is fixedly connected to a wear-resistant layer (102). The bottom of the wear-resistant layer (102) is fixedly connected to an anti-ultraviolet layer (103). The bottom of the anti-ultraviolet layer (103) is fixedly connected to a corrosion-resistant layer (104). The bottom of the corrosion-resistant layer (104) is fixedly connected to a reinforcing layer (105).

2. The high-strength weather-resistant automotive rubber plug according to claim 1, characterized in that: The reinforcing layer (105) includes a reinforcing mesh (1051), and an embedded reinforcing layer (1052) is fixedly connected to the top of the reinforcing mesh (1051). The embedded reinforcing layer (1052) is made of aramid fiber reinforced fluororubber.

3. The high-strength weather-resistant automotive rubber plug according to claim 1, characterized in that: The plug body (1) has a buckle groove (3) on both the front and rear sides, and the inner wall of the buckle groove (3) is provided with anti-slip texture.

4. The high-strength weather-resistant automotive rubber plug according to claim 1, characterized in that: The top of the plug body (1) is fixedly connected to an anti-pressure strip (4), which is trapezoidal in shape.

5. A high-strength, weather-resistant automotive rubber plug according to claim 1, characterized in that: The outer surface of the clamping ring (2) is fixedly connected to an anti-detachment ring (5), and the surface of the anti-detachment ring (5) is provided with anti-slip particles.

6. A high-strength, weather-resistant automotive rubber plug according to claim 1, characterized in that: The base layer (101) is made of silane-modified polyurethane, and the wear-resistant layer (102) is made of a composite coating of ultra-high molecular weight polyethylene and ceramic microspheres.

7. A high-strength, weather-resistant automotive rubber plug according to claim 1, characterized in that: The UV-resistant layer (103) is made of nano-sized zinc oxide, and the corrosion-resistant layer (104) is made of modified fluororubber.

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