Organic silicon rubber sealing strip

Abstract

The utility model discloses an organic silicon rubber sealing strip which comprises a bottom layer, a bonding layer is arranged on the lower surface of the bottom layer, a middle layer is fixedly connected to the upper surface of the bottom layer, an outer layer is fixedly connected to the upper surface of the middle layer, and cones are arranged on the side surfaces of the bottom layer, the middle layer and the outer layer. A lip layer is fixedly connected to the side surface of the convex layer, a cavity is formed in the convex layer, a framework is fixedly connected to the interior of the lip layer, and a limiting plate is fixedly connected to the side surface of the lip layer. By means of the structure, the bottom layer, the middle layer and the outer layer are arranged to be of the sandwich structure, the strength of the sealing strip is improved, multiple functions are integrated in the sealing strip, the cone on the side of the sealing strip is matched, after the sealing strip is bonded through the bonding layer, the sealing strip is prevented from falling off, and the using effect of the sealing strip can be kept when the sealing strip is abraded.

Description

Technical Field

[0001] This utility model relates to the field of sealing strip technology, and in particular to an organosilicon rubber sealing strip. Background Technology

[0002] To enhance their sealing effect, existing silicone rubber sealing strips often feature a barbed cross-section, which prevents leakage by blocking substances. However, the adhesive joint is susceptible to detachment due to substances trapped in the barbs, and the strip's strength is insufficient for long-term use. For example, a rubber sealing strip disclosed in Chinese patent application number CN201620157697.8 has a barbed cross-section, preventing grease from overflowing and impurities from entering the base. The strip also features a spring ring to tighten it and enhance the seal. However, the adhesive joint is prone to detachment, and the strip's strength is insufficient for long-term use. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an organosilicon rubber sealing strip. The bottom layer, middle layer, and outer layer are set as a sandwich structure to increase the strength of the sealing strip, prevent it from collapsing or deforming, and extend its service life. Combined with the conical shape on its sides, this prevents the sealing strip from falling off after being bonded by the adhesive layer, and maintains its performance even when the sealing strip is worn. The bottom layer is made of vinyl silicone rubber, the middle layer of methyl vinyl silicone rubber, and the outer layer of hydroxyl-terminated polydimethylsiloxane, forming a gradient hardness structure. Combined with its sandwich structure, this avoids stress concentration leading to sealing failure and maintains sealing pressure. Furthermore, a raised layer and two lip layers are provided on the outer layer, providing a double sealing effect. Several cavities are provided in the raised layer, and a stainless steel skeleton is provided inside the lip layers to increase the plasticity of the sealing strip, prevent stretching, provide sufficient pressure to the adhesive, prevent the sealing strip from falling off, and address issues such as insufficient sealing. It also has a vibration damping effect.

[0004] This utility model also provides an organosilicon rubber sealing strip, comprising: a bottom layer, wherein an adhesive layer is provided on the lower surface of the bottom layer, an intermediate layer is fixedly connected to the upper surface of the bottom layer, an outer layer is fixedly connected to the upper surface of the intermediate layer, and cones are provided on the side surfaces of the bottom layer, the intermediate layer and the outer layer; a convex layer, wherein a lip layer is fixedly connected to the side surface of the convex layer, a cavity is provided inside the convex layer, a skeleton is fixedly connected inside the lip layer, and a limit plate is fixedly connected to the side surface of the lip layer. The above components form a sandwich structure with a bottom layer, middle layer, and outer layer, increasing the strength of the sealing strip, preventing it from collapsing or deforming, and extending its service life. Combined with the conical shape on its sides, this prevents the sealing strip from detaching after being bonded to the adhesive layer, and maintains its effectiveness even when the sealing strip wears down. The bottom layer is made of vinyl silicone rubber, the middle layer of methyl vinyl silicone rubber, and the outer layer of hydroxyl-terminated polydimethylsiloxane, forming a gradient hardness structure. This, along with the sandwich structure itself, avoids stress concentration that could lead to seal failure, maintaining sealing pressure. A raised layer and two lip layers are added above the outer layer, providing double sealing protection. Several cavities are created within the raised layer, and a stainless steel skeleton is placed inside the lip layers to increase the sealing strip's plasticity, prevent stretching, and provide sufficient pressure to the adhesive, preventing detachment and insufficient sealing. It also has a vibration damping effect.

[0005] According to the present invention, an organosilicon rubber sealing strip is provided, wherein the adhesive layer is made of silicone-based pressure-sensitive adhesive and the bottom layer is made of vinyl silicone rubber. These components enhance the weather resistance and temperature resistance of the adhesive layer and increase the hardness of the bottom layer material.

[0006] According to the present invention, an organosilicon rubber sealing strip is provided, wherein the middle layer is made of methyl vinyl silicone rubber and the outer layer is made of hydroxyl-terminated polydimethylsiloxane. These components allow for a gradual decrease in hardness between the bottom, middle, and outer layers, forming a sandwich structure and a gradient hardness structure, preventing the sealing strip from collapsing or deforming and avoiding stress concentration.

[0007] According to the present invention, an organosilicon rubber sealing strip has two cones located on both sides of the bottom layer, the middle layer, and the outer layer, and the cones are made of carbon fiber. These components increase the strength of the sealing strip's ends and prevent the sealing strip from falling off.

[0008] According to the present invention, in a silicone rubber sealing strip, the lower surface of the cone is fixedly connected to the upper surface of the adhesive layer, and the upper surface of the adhesive layer is wavy. These components enhance the adhesion of the sealing strip and prevent it from detaching.

[0009] According to the present invention, a silicone rubber sealing strip has a convex layer and a lip layer that are semi-circular, and two lip layers and a limiting plate located on both sides of the convex layer. These components enhance the sealing effect of the sealing strip, providing a double guarantee for sealing.

[0010] According to the present invention, an organosilicon rubber sealing strip has a lower surface of the raised layer and the lip layer fixedly connected to the upper surface of the outer layer, and several cavities are evenly distributed inside the raised layer. These components increase the plasticity of the sealing strip and increase the pressure exerted by the sealing strip on the sealing area, thereby improving sealing performance.

[0011] According to the present invention, an organosilicon rubber sealing strip is provided, wherein the raised layer and lip layer are made of graphene-reinforced silicone rubber, and the skeleton is made of stainless steel. These components increase the friction and plasticity of the raised layer and lip layer surfaces, thereby enhancing the sealing effect of the sealing strip. The skeleton prevents the sealing strip from being stretched, thus increasing its strength.

[0012] Beneficial effects:

[0013] Compared with existing technologies, this utility model sets the bottom layer, middle layer and outer layer as a sandwich structure, which increases the strength of the sealing strip, prevents the sealing strip from collapsing or deforming, and extends the service life of the sealing strip. With its side cone, the sealing strip is prevented from falling off after being bonded by the adhesive layer, and it can maintain its performance even when the sealing strip is worn. The bottom layer is made of vinyl silicone rubber, the middle layer is made of methyl vinyl silicone rubber, and the outer layer is made of hydroxyl-terminated polydimethylsiloxane, forming a gradient hardness structure. Combined with its own sandwich structure, it avoids stress concentration that may lead to sealing failure and maintains sealing pressure. Furthermore, a raised layer and two lip layers are set on the outer layer to provide a double sealing protection effect. Several cavities are set in the raised layer, and a stainless steel skeleton is set inside the lip layer to increase the plasticity of the sealing strip, prevent the sealing strip from stretching, and provide sufficient pressure to the adhesive, preventing the sealing strip from falling off and insufficient sealing. It can also have a vibration reduction effect. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall structural diagram of the silicone rubber sealing strip of this utility model;

[0016] Figure 2 This is a top view of the silicone rubber sealing strip of this utility model;

[0017] Figure 3 This is a front cross-sectional view of the silicone rubber sealing strip of this utility model;

[0018] Figure 4 The present invention relates to an organosilicon rubber sealing strip. Figure 3 Structural diagram at point A in the middle.

[0019] Legend:

[0020] 1. Bottom layer; 2. Adhesive layer; 3. Intermediate layer; 4. Outer layer; 5. Cone; 6. Raised layer; 7. Lip layer; 8. Cavity; 9. Skeleton; 10. Limiting plate. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4 This utility model provides an organic silicone rubber sealing strip, comprising: a bottom layer 1, which is made of vinyl silicone rubber; an adhesive layer 2, which is made of silicone pressure-sensitive adhesive, on the lower surface of the bottom layer 1; a middle layer 3, which is made of methyl vinyl silicone rubber, and an outer layer 4, which is made of hydroxyl-terminated polydimethylsiloxane, fixedly connected to the upper surface of the bottom layer 1; and cones 5, which are two cones located on both sides of the bottom layer 1, the middle layer 3, and the outer layer 4, and are made of carbon fiber. The lower surface of the cones 5 is fixedly connected to the upper surface of the adhesive layer 2.

[0023] Specifically, the wavy silicone-based pressure-sensitive adhesive layer 2 enhances the adhesion of the sealing strip. Combined with the carbon fiber cones 5 on both sides of the bottom layer 1, middle layer 3, and outer layer 4, it prevents the sealing strip from falling off and increases the sealing stability. The bottom layer 1 is made of vinyl silicone rubber, the middle layer 3 is made of methyl vinyl silicone rubber, and the outer layer 4 is made of hydroxyl-terminated polydimethylsiloxane, forming a sandwich structure and a gradient hardness structure to prevent the sealing strip from collapsing or deforming, avoid stress concentration leading to sealing failure, maintain sealing pressure, and extend the service life of the sealing strip. The cones 5 on both sides of the bottom layer 1, middle layer 3, and outer layer 4 further prevent the sealing strip from falling off.

[0024] A raised layer 6 is provided, and a lip layer 7 is fixedly connected to the side surface of the raised layer 6. The raised layer 6 and the lip layer 7 are set as semi-circles. The lower surface of the raised layer 6 and the lip layer 7 is fixedly connected to the upper surface of the outer layer 4. The raised layer 6 and the lip layer 7 are made of graphene-reinforced silicone rubber. A cavity 8 is opened inside the raised layer 6. There are several cavities 8 and they are evenly distributed inside the raised layer 6. A skeleton 9 is fixedly connected inside the lip layer 7. The skeleton 9 is made of stainless steel. A limiting plate 10 is fixedly connected to the side surface of the lip layer 7. There are two lip layers 7 and two limiting plates 10 located on both sides of the raised layer 6.

[0025] Specifically, the raised layer 6 and the lip layers 7 on both sides, made of graphene-reinforced silicone rubber, increase the friction on the surface of the sealing strip. Combined with the several cavities 8 inside the raised layer 6, the plasticity of the sealing strip is increased, and the pressure of the sealing strip on the sealing point is improved, thereby increasing the sealing performance of the sealing strip and reducing vibration to prevent the sealing strip from falling off. The stainless steel skeleton 9 inside the two lip layers 7 prevents the sealing strip from being stretched, increases the strength of the sealing strip, and extends the service life of the sealing strip. The limiting plate 10 prevents the sealing strip from being excessively deformed and cracking.

[0026] Working principle: During the use of the sealing strip, the wavy silicone-based pressure-sensitive adhesive layer 2 enhances the adhesion of the sealing strip. Combined with the carbon fiber cones 5 on both sides of the bottom layer 1, middle layer 3, and outer layer 4, this prevents the sealing strip from detaching and increases its sealing stability. The bottom layer 1 is made of vinyl silicone rubber, the middle layer 3 is made of methyl vinyl silicone rubber, and the outer layer 4 is made of hydroxyl-terminated polydimethylsiloxane, forming a sandwich structure and gradient hardness structure. This prevents the sealing strip from collapsing or deforming, avoids stress concentration leading to sealing failure, maintains sealing pressure, and extends the service life of the sealing strip. Furthermore, the bottom layer 1, middle layer 3, and outer layer 4... Conical sections 5 are provided on both sides of layer 3 and outer layer 4 to prevent the sealing strip from falling off. The convex layer 6 and the lip layers 7 on both sides, made of graphene-reinforced silicone rubber, increase the friction of the sealing strip surface. In conjunction with the several cavities 8 inside the convex layer 6, the plasticity of the sealing strip is increased, and the pressure of the sealing strip on the sealing point is increased, thereby increasing the sealing performance of the sealing strip and reducing vibration to prevent the sealing strip from falling off. The stainless steel skeleton 9 inside the two lip layers 7 prevents the sealing strip from being stretched, increases the strength of the sealing strip, and extends the service life of the sealing strip. The limiting plate 10 prevents the sealing strip from being excessively deformed and cracked.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A silicone rubber seal, characterised in that, Include: The bottom layer (1), the bottom layer (1) lower surface is provided with adhesive layer (2), the bottom layer (1) upper surface is fixedly connected with intermediate layer (3), the intermediate layer (3) upper surface is fixedly connected with outer layer (4), the bottom layer (1), intermediate layer (3) and outer layer (4) side surface is provided with cone (5); Convex layer (6), the convex layer (6) side surface is fixedly connected with lip layer (7), the convex layer (6) is internally provided with cavity (8), the lip layer (7) is fixedly connected with framework (9) inside, the lip layer (7) side surface is fixedly connected with limit plate (10).

2. The silicone rubber weatherseal of claim 1, wherein, The adhesive layer (2) is made of silicon-based pressure sensitive adhesive material, the bottom layer (1) is made of vinyl silicone rubber material.

3. The silicone rubber weatherseal of claim 1, wherein, The intermediate layer (3) is made of methyl vinyl silicone rubber material, and the outer layer (4) is made of hydroxyl terminated polydimethylsiloxane material.

4. The silicone rubber weatherseal of claim 1, wherein The cone (5) has two and is located at the bottom layer (1), intermediate layer (3) and outer layer (4) two sides, the cone (5) is made of carbon fiber material.

5. The silicone rubber weatherseal of claim 1, wherein, The lower surface of the cone (5) is fixedly connected with the upper surface of the adhesive layer (2), and the upper surface of the adhesive layer (2) is provided as a wave shape.

6. The silicone rubber weatherseal of claim 1, wherein, The convex layer (6) and the lip layer (7) are provided as semicircular, the lip layer (7) and the limit plate (10) have two and are located at the two sides of the convex layer (6).

7. The silicone rubber weatherseal of claim 1 wherein, The lower surface of the convex layer (6) and the lip layer (7) is fixedly connected with the upper surface of the outer layer (4), and the cavity (8) has a plurality of and is uniformly distributed in the convex layer (6).

8. The silicone rubber weatherseal of claim 1, wherein, The convex layer (6) and the lip layer (7) are made of graphene reinforced silicone rubber material, and the framework (9) is made of stainless steel material.

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