High-temperature-resistant rubber sealing element

Abstract

The utility model discloses a high temperature resistant rubber sealing element which comprises a sealing element body, a first boss and a second boss are arranged on the two sides of the sealing element body respectively, the sealing element body is of an annular structure, and an annular groove is formed in the middle of the annular inner surface of the sealing element body. And a plurality of inner sealing convex strips are arranged on two sides of the annular groove of the sealing element main body. According to the sealing element, when the sealing element is installed on a sealed element, the sealing protrusions of the triangular structures can be well attached to the sealed element, and the sealing effect is improved; and through the formed annular groove, after the sealing piece is installed and extruded, the first boss and the second boss are promoted to be extruded and deformed inwards, and therefore the sealing protrusion of the triangular structure is deformed, and better sealing is achieved.

Description

Technical Field

[0001] This utility model relates to the field of rubber sealing technology, specifically a high-temperature resistant rubber sealing component. Background Technology

[0002] Rubber seals are a type of general-purpose basic component in sealing devices, playing a very important role in the contradiction between leakage and sealing. Because rubber is a valuable elastic polymer material with a wide temperature range, it can produce large deformation with small stress in different media. This deformation can provide contact pressure, compensate for leakage gaps, and achieve the purpose of sealing.

[0003] The existing announcement number CN214838351U discloses a car rubber seal with good sealing performance and a skeleton, including a seal body, a skeleton inside the seal body, a sealing ring outside the seal body, a base layer on the sealing ring, an elastic layer on the upper surface of the base layer, and an anti-aging layer on the upper surface of the elastic layer. This car rubber seal with a skeleton has a skeleton inside the seal body, and the thickness of the skeleton is less than the thickness of the sealing ring. While supporting the sealing ring, the skeleton also ensures the elasticity, sealing performance, and deformation resistance of the seal body. Furthermore, the car rubber seal with a skeleton has an elastic layer, an anti-aging layer, a high-temperature resistant layer, and a corrosion-resistant layer, which enhances the elasticity, sealing performance, service life, and quality of the seal body, making it convenient to use.

[0004] Existing seals are generally annular structures, which have a certain sealing performance, but there is a risk of leakage between the inner wall of the annular structure and the sealed part. Therefore, we propose a high-temperature resistant rubber seal. Utility Model Content

[0005] The purpose of this invention is to provide a high-temperature resistant rubber seal to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-temperature resistant rubber seal, comprising a seal body, wherein a first boss and a second boss are respectively provided on both sides of the seal body, the seal body is an annular structure, an annular groove is provided in the middle of the annular inner surface of the seal body, and multiple inner sealing protrusions are provided on both sides of the annular groove of the seal body.

[0007] Preferably, the sealing element body, the first boss, the inner sealing strip and the second boss are an integral structure, the edge of the first boss is provided with a second chamfer structure and the edge of the second boss is provided with a first chamfer structure.

[0008] Preferably, the cross-sectional shape of the inner sealing protrusion is triangular.

[0009] Preferably, the thickness of the first boss is greater than the thickness of the second boss.

[0010] Preferably, the sealing body, the first boss, and the second boss each include a rubber substrate, an acrylate rubber layer, and a chlorohydrin rubber layer. The acrylate rubber layer is disposed on the outer side of the rubber substrate, and the chlorohydrin rubber layer is disposed on the outer side of the acrylate rubber layer.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. An annular groove is provided in the middle of the inner surface of the main body of the seal. Multiple inner sealing protrusions are provided on both sides of the annular groove of the main body of the seal. The cross-sectional shape of the inner sealing protrusions is triangular. When the seal is installed on the sealed part, the multiple triangular sealing protrusions can fit well with the sealed part, improving the sealing effect. Moreover, through the annular groove, after the seal is installed and squeezed, the first and second protrusions are squeezed and deformed inward, thereby deforming the triangular sealing protrusions and achieving better sealing.

[0013] 2. The sealing body, the first boss and the second boss both include a rubber matrix, an acrylic rubber layer and a chlorohydrin rubber layer. The combination of the acrylic rubber layer and the chlorohydrin rubber layer improves the high temperature resistance of the sealing component. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is the front view of this utility model;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is a structural schematic diagram of the main body of the sealing component of this utility model.

[0019] In the figure: 1. Seal body; 2. First boss; 3. Annular groove; 4. Inner sealing protrusion; 5. Second boss; 6. First chamfer structure; 7. Second chamfer structure; 11. Rubber component substrate; 12. Acrylic rubber layer; 13. Chlorohydrin rubber layer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0021] Please see Figure 1-4 In this embodiment of the present invention, a high-temperature resistant rubber seal includes a seal body 1. A first protrusion 2 and a second protrusion 5 are respectively provided on both sides of the seal body 1. The seal body 1 has an annular structure, and an annular groove 3 is formed in the center of the annular inner surface of the seal body 1. Multiple inner sealing protrusions 4 are provided on both sides of the annular groove 3 on the seal body 1. The cross-sectional shape of the inner sealing protrusions 4 is triangular. When the seal is installed on the sealed component, the multiple triangular sealing protrusions can fit well with the sealed component, improving the sealing effect. Furthermore, through the annular groove 3, after the seal is installed and compressed, the first protrusion 2 and the second protrusion 5 are forced inward and deformed, thereby deforming the triangular sealing protrusions and achieving a better seal.

[0022] The sealing body 1, the first boss 2, the inner sealing strip 4 and the second boss 5 are an integral structure. The edge of the first boss 2 is provided with a second chamfer structure 7, and the edge of the second boss 5 is provided with a first chamfer structure 6. The thickness of the first boss 2 is greater than the thickness of the second boss 5.

[0023] The sealing body 1, the first boss 2, and the second boss 5 each include a rubber substrate 11, an acrylic rubber layer 12, and a chlorohydrin rubber layer 13. The acrylic rubber layer 12 is disposed on the outside of the rubber substrate 11, and the chlorohydrin rubber layer 13 is disposed on the outside of the acrylic rubber layer 12. The high temperature resistance of the sealing component is improved by the cooperation of the acrylic rubber layer 12 and the chlorohydrin rubber layer 13.

[0024] The working principle of this utility model is as follows: An annular groove 3 is provided in the middle of the annular inner surface of the sealing body 1. Multiple inner sealing protrusions 4 are provided on both sides of the annular groove 3 of the sealing body 1. The cross-sectional shape of the inner sealing protrusions 4 is triangular. When the sealing body is installed on the sealed part, the multiple triangular sealing protrusions can fit well with the sealed part, thereby improving the sealing effect. Moreover, through the annular groove 3, after the sealing body is installed and squeezed, the first protrusion 2 and the second protrusion 5 are squeezed and deformed inward, thereby deforming the triangular sealing protrusions and achieving better sealing.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A high temperature resistant rubber seal comprising a seal body (1) characterised in that: The sealing body (1) is provided with a first boss (2) and a second boss (5) on both sides, the sealing body (1) is of an annular structure, a ring-shaped groove (3) is formed in the middle of the inner surface of the sealing body (1), and a plurality of inner sealing convex strips (4) are arranged on both sides of the ring-shaped groove (3).

2. A high temperature resistant rubber seal according to claim 1, characterized in that: The sealing body (1), the first boss (2), the inner sealing convex strip (4) and the second boss (5) are of an integrated structure, the edge of the first boss (2) is provided with a second chamfer structure (7), and the edge of the second boss (5) is provided with a first chamfer structure (6).

3. A high temperature resistant rubber seal according to claim 1, characterized in that: The cross section of the inner sealing convex strip (4) is triangular.

4. A high temperature resistant rubber seal according to claim 1, characterized in that: The thickness of the first boss (2) is greater than that of the second boss (5).

5. A high temperature resistant rubber seal according to claim 1, characterized in that: The sealing body (1), the first boss (2) and the second boss (5) each comprise a rubber base (11), an acrylate rubber layer (12) and a chlorohydrate rubber layer (13), the outer side of the rubber base (11) is provided with the acrylate rubber layer (12), and the outer side of the acrylate rubber layer (12) is provided with the chlorohydrate rubber layer (13).

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