Hollow annular rubber sealing element

Abstract

The utility model discloses a hollow annular rubber sealing piece which comprises a rubber sealing piece body. The rubber sealing piece is composed of a rubber pad and a through hole, the through hole is formed in the middle of the interior of the rubber pad, the rubber pad is composed of wear-resisting layers and a rubber ring, the wear-resisting layers are attached to the two sides of the rubber ring, annular hollow cavities are formed in the two sides of the rubber ring, and annular barrel-shaped woven meshes are arranged in the annular hollow cavities. Under the action of external pressure, the rubber pad elastically deforms and is tightly attached between the sealing surfaces, so that medium leakage is prevented, the wear-resistant layers are attached to the two sides of the rubber ring, friction between the wear-resistant layers and the sealing surfaces can be effectively resisted, and the service life of the rubber sealing piece is prolonged; the annular hollow cavities on the two sides of the rubber ring provide a certain buffer space for the sealing element, and when the sealing element is stressed, the cavities can be compressed, so that the rubber ring can better adapt to different sealing environments, and the sealing effect is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of rubber sealing technology, specifically a hollow annular rubber sealing component. Background Technology

[0002] Rubber seals are a type of general-purpose basic component in sealing devices. They are rubber products that utilize the elasticity of rubber to deform under certain pressure, thereby compensating for leakage gaps and achieving the purpose of sealing. They play an important role in preventing leakage, dust, and gas.

[0003] Chinese Patent No. 201820201221.9 discloses a rubber sealing gasket, including a rubber sealing gasket body. A wear-resistant plastic plate is installed on the outer side of the rubber sealing gasket body. There are four wear-resistant plastic plates in total, and the included angle between adjacent wear-resistant plastic plates is degrees. The wear-resistant plastic plates are provided with mounting holes. The rubber sealing gasket body is composed of an outer ring and an inner ring, and a fixing steel ring is provided between the outer ring and the inner ring.

[0004] When the rubber pad is deformed under pressure during use, the small internal gaps result in a small deformation range, which can easily lead to leakage when the force is uneven. Utility Model Content

[0005] The purpose of this invention is to provide a hollow annular rubber seal to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hollow annular rubber seal, comprising a rubber seal; the rubber seal consists of a rubber pad and a through hole, the through hole being located in the middle of the rubber pad, the rubber pad consisting of a wear-resistant layer and a rubber ring, the wear-resistant layer being attached to both sides of the rubber ring, annular hollow cavities being provided on both sides of the rubber ring, and annular cylindrical woven mesh being provided inside the annular hollow cavities.

[0007] Preferably, the annular cylindrical woven mesh is configured as an elastic metal woven mesh.

[0008] Preferably, a baffle is provided on the outer side of the rubber pad, and the baffle is integrally formed with the rubber pad.

[0009] Preferably, a reinforcing mesh is provided in the middle of the rubber ring, and the reinforcing mesh is embedded inside the rubber ring.

[0010] Preferably, the reinforcing mesh is a carbon fiber mesh or a steel wire mesh.

[0011] The wear and corrosion resistance of the carbon fiber mesh and steel wire mesh used in the reinforcement also helps to improve the reliability and service life of rubber seals under complex working conditions.

[0012] Preferably, the wear-resistant layer is a ceramic coating.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Under external pressure, the rubber gasket undergoes elastic deformation and fits tightly between the sealing surfaces, thereby preventing media leakage. The wear-resistant layer is attached to both sides of the rubber ring, which can effectively resist friction between the rubber and the sealing surfaces and extend the service life of the rubber seal. The annular hollow cavities on both sides of the rubber ring provide a certain buffer space for the seal. When subjected to pressure, the cavity can be compressed, allowing the rubber ring to better adapt to different sealing environments and enhance the sealing effect.

[0015] 2. The annular cylindrical woven mesh is made of elastic metal woven mesh. During operation, the elastic metal woven mesh provides support for the rubber ring with its own elasticity and the high strength of the metal. When the rubber ring is deformed by external pressure, the elastic metal woven mesh can disperse the pressure and prevent the rubber ring from being damaged due to excessive local pressure. At the same time, the elasticity of the metal woven mesh can help the rubber ring to quickly return to its original shape after the pressure is removed, ensuring the reusability and long-term sealing stability of the seal. In addition, its metal material also has good corrosion resistance, which can protect the rubber ring from corrosive media to a certain extent.

[0016] 3. The reinforcing mesh set in the middle of the rubber ring is embedded inside the rubber ring. When the reinforcing mesh is made of carbon fiber mesh or steel wire mesh, its high strength characteristics can significantly enhance the overall strength of the rubber ring. When subjected to large pressure or external force, the reinforcing mesh can share the stress on the rubber ring and prevent the rubber ring from deforming or cracking.

[0017] 4. The wear-resistant layer is made of ceramic coating. Ceramic has the characteristics of high hardness and strong wear resistance. During the operation of the seal, the ceramic coating is in direct contact with the sealing surface, which can greatly reduce the coefficient of friction and reduce the wear between the rubber gasket and the sealing surface. Even in long-term reciprocating motion or high-friction working environment, the ceramic coating can effectively protect the rubber gasket and slow down the wear rate of the rubber gasket, thereby extending the service life of the entire rubber seal. In addition, the ceramic coating also has good chemical stability and can resist the corrosion of various chemical media, further improving the applicability and reliability of the seal in harsh working environments. Attached Figure Description

[0018] 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:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a side view of the structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the rubber ring of this utility model.

[0023] In the diagram: 1. Rubber seal; 2. Annular hollow cavity; 3. Through hole; 4. Rubber gasket; 5. Annular cylindrical woven mesh; 6. Reinforcing mesh; 7. Bar; 8. Wear-resistant layer; 9. Rubber ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 In this embodiment of the utility model, a hollow annular rubber seal includes a rubber seal 1; the rubber seal 1 consists of a rubber pad 4 and a through hole 3, the through hole 3 is located in the middle of the inside of the rubber pad 4, the rubber pad 4 consists of a wear-resistant layer 8 and a rubber ring 9, the wear-resistant layer 8 is attached to both sides of the rubber ring 9, and an annular hollow cavity 2 is provided on both sides of the rubber ring 9, and an annular cylindrical woven mesh 5 is provided inside the annular hollow cavity 2.

[0026] Furthermore, the annular cylindrical braided mesh 5 is configured as an elastic metal braided mesh. During operation, the elastic metal braided mesh provides support for the rubber ring 9 due to its elasticity and the high strength of the metal. When the rubber ring 9 is deformed by external pressure, the elastic metal braided mesh can disperse the pressure and prevent the rubber ring 9 from being damaged due to excessive local pressure. At the same time, the elasticity of the metal braided mesh can help the rubber ring 9 quickly return to its original shape after the pressure is removed, ensuring the reusability and long-term sealing stability of the seal. In addition, its metal material also has good corrosion resistance, which can protect the rubber ring 9 from corrosive media to a certain extent.

[0027] Furthermore, a retaining strip 7 is provided on the outer side of the rubber pad 4. The retaining strip 7 is integrally set with the rubber pad 4. The retaining strip 7 mainly serves to limit and guide. During installation, the retaining strip 7 can guide the rubber seal 1 to be accurately installed in the designated position, avoiding installation deviation from affecting the sealing effect. When the equipment is running, the retaining strip 7 can limit the excessive deformation of the rubber pad 4, preventing the rubber pad 4 from falling out of the sealing position due to excessive deformation, ensuring that the seal is always in an effective sealing state. At the same time, the retaining strip 7 can also block external impurities from entering the sealing area to a certain extent, protecting the seal and sealing surface, and further improving the sealing performance.

[0028] Furthermore, a reinforcing mesh 6 is provided in the middle of the rubber ring 9. The reinforcing mesh 6 is embedded inside the rubber ring 9. When the reinforcing mesh 6 is made of carbon fiber mesh or steel wire mesh, its high strength characteristics can significantly enhance the overall strength of the rubber ring 9. When subjected to large pressure or external force, the reinforcing mesh 6 can share the stress on the rubber ring 9 and prevent the rubber ring 9 from deforming or cracking.

[0029] Furthermore, the reinforcing mesh 6 is made of carbon fiber mesh or steel wire mesh. The wear resistance and corrosion resistance of the carbon fiber mesh and steel wire mesh used in the reinforcing mesh 6 also help to improve the reliability and service life of the rubber seal 1 under complex working conditions.

[0030] Furthermore, the wear-resistant layer 8 is a ceramic coating. Ceramic has the characteristics of high hardness and strong wear resistance. During the operation of the seal, the ceramic coating is in direct contact with the sealing surface, which can greatly reduce the coefficient of friction and reduce the wear between the rubber gasket 4 and the sealing surface. Even in long-term reciprocating motion or high-friction working environment, the ceramic coating can effectively protect the rubber gasket 4 and slow down the wear rate of the rubber gasket 4, thereby extending the service life of the entire rubber seal 1. In addition, the ceramic coating also has good chemical stability and can resist the erosion of various chemical media, further improving the applicability and reliability of the seal in harsh working environments.

[0031] The working principle and usage process of this utility model are as follows: The rubber seal 1 consists of a rubber gasket 4 and a through hole 3. Its core operating principle is to achieve sealing by utilizing the elastic deformation of rubber. The through hole 3 is located in the middle of the rubber gasket 4, which provides a channel for the passage of fluid or objects. When the rubber seal 1 is installed in the equipment, under the action of external pressure, the rubber gasket 4 undergoes elastic deformation and fits tightly between the sealing surfaces, thereby preventing media leakage. The wear-resistant layer 8 is attached to both sides of the rubber ring 9, which can effectively resist friction between the rubber and the sealing surfaces and extend the service life of the rubber seal 1. The annular hollow cavities 2 on both sides of the rubber ring 9 provide a certain buffer space for the seal. When subjected to pressure, the cavity can be compressed, allowing the rubber ring 9 to better adapt to different sealing environments and enhance the sealing effect.

[0032] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are 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 hollow annular rubber seal, comprising a rubber seal (1); characterized in that: The rubber seal (1) consists of a rubber pad (4) and a through hole (3). The through hole (3) is located in the middle of the rubber pad (4). The rubber pad (4) consists of a wear-resistant layer (8) and a rubber ring (9). The wear-resistant layer (8) is attached to both sides of the rubber ring (9). An annular hollow cavity (2) is provided on both sides of the rubber ring (9). An annular cylindrical woven mesh (5) is provided inside the annular hollow cavity (2).

2. The hollow annular rubber seal according to claim 1, characterized in that: The annular cylindrical woven mesh (5) is configured as an elastic metal woven mesh.

3. The hollow annular rubber seal according to claim 1, characterized in that: A baffle (7) is provided on the outside of the rubber pad (4), and the baffle (7) and the rubber pad (4) are integrally formed.

4. A hollow annular rubber seal according to claim 1, characterized in that: A reinforcing mesh (6) is provided in the middle of the rubber ring (9), and the reinforcing mesh (6) is embedded inside the rubber ring (9).

5. A hollow annular rubber seal according to claim 4, characterized in that: The reinforcing mesh (6) is configured as a carbon fiber mesh or a steel wire mesh.

6. A hollow annular rubber seal according to claim 1, characterized in that: The wear-resistant layer (8) is configured as a ceramic coating.

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