High-strength sealing rubber ring structure

Abstract

The utility model discloses a high-strength sealing rubber ring structure, which relates to the technical field of sealing rings and comprises a rubber ring body, and the rubber ring body consists of six mutually connected wear-resistant layers and six mutually connected high-pressure-resistant layers. According to the high-pressure rubber ring, the abrasion resistance of the abrasion-resistant layers made of nitrile rubber is high, the abrasion-resistant layers are made of fluororubber and silicone rubber composite materials, it is guaranteed that the rubber ring body can still keep excellent elasticity and sealing performance in the high-pressure environment, and meanwhile due to the fact that the rubber ring body is composed of the six abrasion-resistant layers connected with one another and the six high-pressure-resistant layers connected with one another, the abrasion-resistant performance is good. The rubber ring body can bear high pressure and resist the influence of the external environment, the service life is prolonged, the overall toughness and elasticity of the rubber ring body are improved through the arrangement of the double rubber rings, the strength of the rubber ring body is improved, and meanwhile the space between the high-pressure-resistant layer and the metal ring is filled with pressurized gas, so that the service life of the rubber ring body is prolonged. Therefore, the high strength of the rubber ring body is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing rings, and specifically relates to a high-strength sealing rubber ring structure. Background Art

[0002] With the rapid development of industrial technology, the requirements for sealing materials are getting higher and higher. As a key sealing component widely used in various equipment and systems, the performance of sealing rubber rings directly affects the working efficiency, service life and safety of the equipment. Therefore, research and development of high-strength, high-sealing performance rubber ring structures has always been a hot topic in industry and academia. Traditional sealing rubber rings are usually made of a single rubber material, and their sealing performance is often affected by the mechanical properties of the material itself and the working environment. Under high temperature, high pressure or corrosive environment, traditional sealing rubber rings are prone to aging, hardening, cracking and other problems, resulting in reduced sealing performance or even failure. In addition, a single rubber material is often difficult to meet complex and changeable sealing requirements, such as maintaining stable sealing performance under different temperatures, pressures and media.

[0003] A Chinese patent with patent number CN201822157624.0 discloses a new type of rubber sealing ring, including an upper pressure component, a sealing sleeve, multiple connecting columns and a lower pressure component. The upper pressure component includes an upper rubber ring and an upper sealing ring. The upper rubber ring is designed as an inverted disc-shaped structure and the top surface of the upper rubber ring is open. The top surface of the sealing sleeve is provided with a mounting hole that passes through from top to bottom; the lower pressure component includes a lower rubber ring and a lower sealing ring. The lower side of the upper sealing ring is connected to the lower sealing ring through the connecting column, and the lower sealing ring is sleeved on the outer side of the lower rubber ring, which can bear force in both directions and has a good sealing effect; it has the advantages of high-strength structural design.

[0004] However, in the implementation of relevant technologies, it was found that a new type of rubber sealing ring designed as above has the following problems: its upper rubber ring, upper sealing ring, lower rubber ring and lower sealing ring are all single-layer structures, and it is difficult to ensure that the rubber ring can withstand high pressure while resisting the influence of the external environment, resulting in a short service life, and there is no reinforcement rib design, which makes it difficult to improve the compressive strength and stability of the rubber ring, resulting in the problem that the whole is prone to deformation and affects the sealing effect. In view of this, a high-strength sealing rubber ring structure is provided to overcome the above defects. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a high-strength sealing rubber ring structure to achieve a multi-layer structure of the sealing rubber ring with higher strength and improve the compressive strength and stability.

[0006] In order to solve the above technical problems, the utility model provides a high-strength sealing rubber ring structure, including a rubber ring body, wherein the rubber ring body is composed of six interconnected wear-resistant layers and six interconnected high-pressure resistant layers, the six interconnected high-pressure resistant layers are respectively connected to the inner walls of the six interconnected wear-resistant layers, wherein the inner walls of two of the high-pressure resistant layers are connected with double rubber rings, and metal rings are installed on the top and bottom of the double rubber rings.

[0007] Furthermore, the double rubber ring is located in the middle of the rubber ring body, and the other four high-pressure resistant layers are grouped into two each, and each group is respectively located at the top and bottom of the double rubber ring.

[0008] Furthermore, arc-shaped grooves matching the double rubber rings are provided at the top and bottom of the metal ring, and the material of the metal ring is soft titanium alloy.

[0009] Furthermore, the material of the wear-resistant layer is nitrile rubber, and the material of the high-pressure resistant layer is fluorosilicone rubber.

[0010] Furthermore, a first woven mesh is integrally formed inside the wear-resistant layer, and the first woven mesh is composed of nylon ropes and glass fiber ropes woven together.

[0011] Furthermore, a second woven mesh is integrally formed inside the high-pressure resistant layer, and the second woven mesh is formed by braiding two strands of a first polyester fiber rope and a second polyester fiber rope in parallel.

[0012] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0013] 1. In the utility model, the wear-resistant layer of nitrile rubber has high wear resistance, which ensures the wear-resistant effect of the rubber ring body. The wear-resistant layer is a composite material of fluororubber and silicone rubber, which can maintain elasticity at high temperatures, thereby ensuring that the rubber ring body can still maintain excellent elasticity and sealing performance under high pressure. At the same time, because the rubber ring body is composed of six interconnected wear-resistant layers and six interconnected high-pressure resistant layers, a multi-layer structure is formed, which can ensure that the rubber ring body can withstand high pressure while resisting the influence of the external environment, thereby improving the service life. By arranging double rubber rings, the overall toughness and elasticity of the rubber ring body are improved, thereby improving the strength of the rubber ring body. The metal ring made of soft titanium metal meets the softness requirements of the rubber ring body. The titanium alloy itself has high-strength corrosion resistance. After being corroded, it can maintain the overall structure of the rubber ring body and reduce the harm caused by the breakage of the rubber ring body. At the same time, pressurized gas is filled between the high-pressure resistant layer and the metal ring, thereby further improving the high strength of the rubber ring body.

[0014] 2. In the utility model, the first woven net composed of mutually woven nylon ropes and glass fiber ropes improves the tear resistance of the wear-resistant layer. The second woven net formed by the first polyester fiber rope and the second polyester fiber rope being woven in parallel improves the tear resistance of the high-pressure resistant layer, avoids the problem of breakage of the wear-resistant layer and the high-pressure resistant layer, and thus prolongs the service life of the rubber ring body. The nylon material has high strength and wear resistance, as well as good chemical corrosion resistance. The first polyester fiber rope and the second polyester fiber rope have high elasticity and wear resistance, and can provide good support and reinforcement effects. The glass fiber woven net has high strength and high temperature resistance, as well as good corrosion resistance. Therefore, the elasticity, wear resistance and high temperature resistance of the rubber ring body are enhanced, and it is ensured that the rubber ring body is not easily squeezed and deformed, thereby improving the sealing effect of the rubber ring body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a high-strength sealing rubber ring structure of the utility model;

[0016] Figure 2 This is a schematic cross-sectional structure diagram of a high-strength sealing rubber ring structure of the utility model;

[0017] Figure 3 This is a structural schematic diagram of a metal ring in a high-strength sealing rubber ring structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure of a nylon rope and a glass fiber rope in a high-strength sealing rubber ring structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure of the polyester fiber rope and the steel wire in a high-strength sealing rubber ring structure of the utility model;

[0020] Figure 6 for Figure 2 A magnified view of the structure at center.

[0021] Numbers in the figure: 1, rubber ring body; 2, wear-resistant layer; 3, high-pressure resistant layer; 4, double rubber ring; 5, metal ring; 6, arc-shaped groove; 7, first woven net; 701, nylon rope; 702, glass fiber rope; 8, second woven net; 801, first polyester fiber rope; 802, second polyester fiber rope. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0023] An existing new type of rubber sealing ring, whose upper rubber ring, upper sealing ring, lower rubber ring and lower sealing ring are all single-layer structures, makes it difficult to ensure that the rubber ring can withstand high pressure while resisting the influence of the external environment, resulting in a short service life. In addition, there is no reinforcement rib design, making it difficult to improve the compressive strength and stability of the rubber ring, resulting in the problem that the entire ring is easily deformed and affects the sealing effect. Embodiment 1

[0024] Depend on Figure 1-Figure 6 The utility model provides a high-strength sealing rubber ring structure.

[0025] Specifically, by Figure 1 , Figure 2 and Figure 6 The invention provides a rubber ring body 1, which is composed of six interconnected wear-resistant layers 2 and six interconnected high-pressure resistant layers 3. The six interconnected high-pressure resistant layers 3 are respectively connected to the inner walls of the six interconnected wear-resistant layers 2, wherein the inner walls of two high-pressure resistant layers 3 are connected with double rubber rings 4, and the top and bottom of the double rubber rings 4 are both installed with metal rings 5;

[0026] The double rubber ring 4 is located in the middle of the rubber ring body 1, and the other four high-pressure resistant layers 3 are each grouped in two and each group is respectively located at the top and bottom of the double rubber ring 4. By installing the double rubber ring 4 in the middle of the rubber ring body 1, the problem of the rubber ring body 1 being heavy on the top and light on the bottom or light on the top and heavy on the bottom is avoided, and the overall toughness and elasticity of the rubber ring body 1 are improved, thereby improving the strength of the rubber ring body 1; the top and bottom of the metal ring 5 are both provided with arc grooves 6 adapted to the double rubber ring 4, by Figure 3It is given that the material of the metal ring 5 is soft titanium alloy. By setting the arc groove 6, it is ensured that the double rubber ring 4 and the metal ring 5 are more closely fitted, and the two are coated with styrene-butadiene rubber latex and bonded together by styrene-butadiene rubber latex. Styrene-butadiene rubber latex has the effects of high bonding strength, weather resistance and water resistance, thereby avoiding the problem of the two being far away from each other, thereby ensuring the integrity of the overall structure. The metal ring 5 made of soft titanium metal meets the softness requirement of the rubber ring body 1. The titanium alloy itself has high-strength corrosion resistance. After being corroded, it can maintain the overall structure of the rubber ring body 1 and reduce the harm caused by the breakage of the rubber ring body 1; the material of the wear-resistant layer 2 is nitrile rubber, and the material of the high-pressure resistant layer 3 is fluorosilicone rubber. Nitrile rubber has high wear resistance and good oil resistance, heat resistance, adhesion, water resistance, air tightness and excellent bonding performance, thereby ensuring the wear resistance of the rubber ring body 1. Fluorosilicone rubber is a synthetic material with excellent chemical resistance, wear resistance and high temperature resistance. The composite material of fluororubber and silicone rubber can maintain elasticity at high temperatures of -70°C to 200°C, and can withstand pressures as high as 6.89 to 68.94 MPa, thereby ensuring that the rubber ring body 1 can still maintain excellent elasticity and sealing performance under high pressure environments. Because the rubber ring body 1 is composed of six interconnected wear-resistant layers 2 and six interconnected high-pressure resistant layers 3, a multi-layer structure is formed, which can ensure that the rubber ring body 1 can withstand high pressure while resisting the influence of the external environment, thereby increasing the service life. By arranging a double rubber ring 4, the overall toughness and elasticity of the rubber ring body 1 are improved, thereby improving the strength of the rubber ring body 1. The metal ring 5 made of soft titanium metal meets the softness requirements of the rubber ring body 1. The titanium alloy itself has high-strength corrosion resistance. After being corroded, it can maintain the overall structure of the rubber ring body 1 and reduce the harm caused by the breakage of the rubber ring body 1. At the same time, pressurized gas is filled between the high-pressure resistant layer 3 and the metal ring 5, thereby further improving the high strength of the rubber ring body 1. Embodiment 2

[0027] Furthermore, as a specific implementation of the utility model, the utility model provides a high-strength sealing rubber ring structure.

[0028] Specifically, by Figure 4 and Figure 5It is given that the wear-resistant layer 2 has a first woven mesh 7 integrally formed inside, and the first woven mesh 7 is composed of a nylon rope 701 and a glass fiber rope 702 that are woven together. The high-pressure resistant layer 3 has a second woven mesh 8 integrally formed inside, and the second woven mesh 8 is formed by weaving a first polyester fiber rope 801 and a second polyester fiber rope 802 in parallel. The first woven mesh 7 composed of the nylon rope 701 and the glass fiber rope 702 that are woven together improves the tear resistance of the wear-resistant layer 2, and the second woven mesh 8 composed of the first polyester fiber rope 801 and the second polyester fiber rope 802 in parallel improves the tear resistance of the high-pressure resistant layer 3, avoiding the wear-resistant The problem of breakage of layer 2 and the high-pressure resistant layer 3 is solved, thereby extending the service life of the rubber ring body 1. The nylon material has high strength and wear resistance, and also has good chemical corrosion resistance. The first polyester fiber rope 801 and the second polyester fiber rope 802 have high elasticity and wear resistance, and can provide good support and reinforcement effects. The glass fiber woven mesh has high strength and high temperature resistance, and also has good corrosion resistance. Therefore, the elasticity, wear resistance and high temperature resistance of the rubber ring body 1 are enhanced, and it is ensured that the rubber ring body 1 is not easily squeezed and deformed, thereby improving the sealing effect of the rubber ring body 1.

[0029] Working principle:

[0030] The wear resistance of nitrile rubber is high, and it has good oil resistance, heat resistance, adhesion, water resistance, air tightness and excellent bonding performance, thus ensuring the wear resistance of the rubber ring body 1. Fluorosilicone rubber is a synthetic material with excellent chemical resistance, wear resistance and high temperature resistance. It is a composite material of fluororubber and silicone rubber. It can maintain elasticity at high temperatures of -70°C to 200°C and can withstand pressures as high as 6.89 to 68.94MPa, thereby ensuring that the rubber ring body 1 can still maintain excellent elasticity and sealing performance under high pressure environments. At the same time, because the rubber ring body 1 is composed of six interconnected wear-resistant layers 2 and six interconnected high-pressure resistant layers 3 , thus forming a multi-layer structure, which can ensure that the rubber ring body 1 can withstand high pressure while resisting the influence of the external environment, thereby improving the service life. By setting up a double rubber ring 4, the overall toughness and elasticity of the rubber ring body 1 are improved, thereby improving the strength of the rubber ring body 1. The metal ring 5 made of soft titanium metal meets the softness requirements of the rubber ring body 1. The titanium alloy itself has high-strength corrosion resistance. After being corroded, it can maintain the overall structure of the rubber ring body 1 and reduce the harm caused by the breakage of the rubber ring body 1. At the same time, pressurized gas is filled between the high-pressure resistant layer 3 and the metal ring 5, thereby further improving the high strength of the rubber ring body 1.

[0031] The first woven mesh 7 composed of mutually woven nylon ropes 701 and glass fiber ropes 702 improves the tear resistance of the wear-resistant layer 2. The second woven mesh 8 formed by the first polyester fiber rope 801 and the second polyester fiber rope 802 being woven in parallel improves the tear resistance of the high-pressure resistant layer 3, avoiding the problem of breakage of the wear-resistant layer 2 and the high-pressure resistant layer 3, thereby extending the service life of the rubber ring body 1. The nylon material has high strength and wear resistance, and also has good chemical corrosion resistance. The first polyester fiber rope 801 and the second polyester fiber rope 802 have high elasticity and wear resistance, and can provide good support and reinforcement effects. The glass fiber woven mesh has high strength and high temperature resistance, and also has good corrosion resistance, thereby enhancing the elasticity, wear resistance and high temperature resistance of the rubber ring body 1, and ensuring that the rubber ring body 1 is not easily squeezed and deformed, thereby improving the sealing effect of the rubber ring body 1.

[0032] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A high-strength sealing rubber ring structure, comprising a rubber ring body (1), characterized in that: The rubber ring body (1) is composed of six mutually connected wear-resistant layers (2) and six mutually connected high-pressure resistant layers (3), the six mutually connected high-pressure resistant layers (3) being respectively connected to the inner walls of the six mutually connected wear-resistant layers (2), wherein the inner walls of two of the high-pressure resistant layers (3) are connected to double rubber rings (4), and metal rings (5) are installed on the top and bottom of the double rubber rings (4).

2. A high-strength sealing rubber ring structure according to claim 1, characterized in that: The double rubber ring (4) is located in the middle of the rubber ring body (1), and the other four high-pressure resistant layers (3) are grouped in pairs, and each group is located at the top and bottom of the double rubber ring (4).

3. A high-strength sealing rubber ring structure according to claim 2, characterized in that: The top and bottom of the metal ring (5) are both provided with arc-shaped grooves (6) that match the double rubber ring (4), and the material of the metal ring (5) is soft titanium alloy.

4. A high-strength sealing rubber ring structure according to claim 3, characterized in that: The material of the wear-resistant layer (2) is nitrile rubber, and the material of the high-pressure resistant layer (3) is fluorosilicone rubber.

5. A high-strength sealing rubber ring structure according to claim 4, characterized in that: A first woven mesh (7) is integrally formed inside the wear-resistant layer (2), and the first woven mesh (7) is composed of nylon ropes (701) and glass fiber ropes (702) that are woven together.

6. A high-strength sealing rubber ring structure according to claim 5, characterized in that: A second braided mesh (8) is integrally formed inside the high-pressure resistant layer (3), and the second braided mesh (8) is formed by braiding two strands of a first polyester fiber rope (801) and a second polyester fiber rope (802) in parallel.

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