CN-224201116-U - Hollow annular rubber sealing piece

Abstract

The utility model discloses a hollow annular rubber sealing piece, which comprises a rubber sealing piece, wherein the rubber sealing piece is composed of a rubber pad and a through hole, the through hole is formed in the middle position inside the rubber pad, the rubber pad is composed of a wear-resistant layer and a rubber ring, the wear-resistant layer is attached to two sides of the rubber ring, annular hollow cavities are formed in two sides of the rubber ring, and annular cylindrical woven meshes are arranged inside the annular hollow cavities. The rubber gasket is elastically deformed under the action of external pressure, and is tightly attached between sealing surfaces, so that medium leakage is prevented, the wear-resistant layers are attached to the two sides of the rubber gasket, friction between the rubber gasket and the sealing surfaces can be effectively resisted, the service life of a rubber sealing piece is prolonged, a certain buffer space is provided for the sealing piece by the annular hollow cavities on the two sides of the rubber gasket, and the cavities can be compressed when the rubber gasket is subjected to pressure, so that the rubber gasket is better suitable for different sealing environments, and the sealing effect is enhanced.

Inventors

• LV YONG
• JIANG JUNYI

Assignees

• 江苏樱曜新材料科技有限公司

Dates

Publication Date

20260505

Application Date

20250606

Claims (6)

1. 1. A hollow annular rubber sealing member comprises a rubber sealing member (1) and is characterized in that the rubber sealing member (1) is composed of a rubber pad (4) and a through hole (3), the through hole (3) is arranged in the middle of the inside of the rubber pad (4), the rubber pad (4) is composed of a wear-resistant layer (8) and a rubber ring (9), the wear-resistant layer (8) is attached to two sides of the rubber ring (9), annular hollow cavities (2) are formed in two sides of the rubber ring (9), and annular cylindrical woven meshes (5) are arranged in the annular hollow cavities (2).
2. 2. A hollow annular rubber seal according to claim 1, characterized in that the annular cylindrical braided mesh (5) is provided as an elastic metal braided mesh.
3. 3. The hollow annular rubber sealing member according to claim 1, wherein a stop strip (7) is arranged on the outer side of the rubber pad (4), and the stop strip (7) and the rubber pad (4) are integrally arranged.
4. 4. A hollow annular rubber seal according to claim 1, characterized in that a reinforcing mesh (6) is arranged in the middle of the rubber ring (9), the reinforcing mesh (6) being embedded inside the rubber ring (9).
5. 5. A hollow annular rubber seal according to claim 4, characterized in that the reinforcement mesh (6) is provided as a carbon fiber mesh or a steel wire mesh.
6. 6. A hollow annular rubber seal according to claim 1, characterized in that the wear layer (8) is provided as a ceramic coating.

Description

Hollow annular rubber sealing piece Technical Field The utility model relates to the technical field of rubber sealing elements, in particular to a hollow annular rubber sealing element. Background The rubber sealing element is a general basic element in a sealing device, and is a rubber product which utilizes the elasticity of rubber to generate deformation under a certain pressure and compensates leakage clearance so as to achieve the sealing purpose and plays an important role in the aspects of leakage prevention, dust prevention, gas prevention and the like. Chinese patent No. 201820201221.9 discloses a rubber sealing pad, including the rubber sealing pad body, wear-resisting plastic slab is installed in the outside of rubber sealing pad body, wear-resisting plastic slab is equipped with four altogether, and the contained angle of adjacent wear-resisting plastic slab is the degree, be provided with the mounting hole on the wear-resisting plastic slab, the rubber sealing pad body comprises outer ring and inlayer ring, be provided with fixed steel ring between outer ring and the inlayer ring. When the rubber pad is pressed to deform during use, the deformation placing range is small due to small gaps in the rubber pad, and leakage is easy to occur when the stress is uneven. Disclosure of utility model The utility model aims to provide a hollow annular rubber sealing piece, which solves the problems in the prior art. The hollow annular rubber sealing piece comprises a rubber gasket and a through hole, wherein the through hole is arranged in the middle of the inside of the rubber gasket, the rubber gasket is composed of a wear-resistant layer and a rubber ring, the wear-resistant layer is attached to two sides of the rubber ring, annular hollow cavities are formed in two sides of the rubber ring, and annular cylinder packaging woven nets are arranged in the annular hollow cavities. Preferably, the annular cylindrical woven mesh is provided as an elastic metal woven mesh. Preferably, a stop bar is arranged on the outer side of the rubber pad, and the stop bar and the rubber pad are integrally arranged. Preferably, a reinforcing net is arranged in the middle of the rubber ring, and the reinforcing net is embedded into the rubber ring. Preferably, the reinforcing mesh is provided as a carbon fiber mesh or a steel wire mesh. The carbon fiber mesh and the steel wire mesh used by the reinforcing mesh have self wear resistance and corrosion resistance, and are also beneficial to improving the reliability and the service life of the rubber sealing piece under complex working conditions. Preferably, the wear-resistant layer is provided as a ceramic coating. Compared with the prior art, the utility model has the beneficial effects that: 1. Under the action of external pressure, the rubber pad is elastically deformed and tightly attached between sealing surfaces, so that medium leakage is prevented, and the wear-resistant layers are attached to the two sides of the rubber ring, so that friction between the rubber ring and the sealing surfaces can be effectively resisted, and the service life of the rubber sealing piece is prolonged; 2. The annular cylindrical packaging woven net is arranged to be an elastic metal woven net, in the running process, the elastic metal woven net provides support for the rubber ring by virtue of the elasticity of the elastic metal woven net and the high-strength characteristic of metal, when the rubber ring is deformed by external pressure, the elastic metal woven net can disperse pressure to prevent the rubber ring from being damaged due to overlarge local pressure, meanwhile, the elasticity of the metal woven net can assist the rubber ring to quickly recover after the pressure disappears, the repeated use performance and long-term sealing stability of the sealing element are ensured, and in addition, the metal material of the metal woven net also has good corrosion resistance and can protect the rubber ring from being damaged by corrosive mediums to a certain extent; 3. The reinforcing net arranged in the middle of the rubber ring is embedded into the rubber ring, when the reinforcing net is arranged as a carbon fiber net or a steel wire net, the high strength characteristic of the reinforcing net can obviously enhance the integral strength of the rubber ring, and when the reinforcing net bears larger pressure or external force, the reinforcing net can share the stress born by the rubber ring and prevent the rubber ring from deformation, cracking and other conditions; 4. The wear-resisting layer is set to ceramic coating, and ceramic has the characteristics that hardness is high, the wearability is strong, at sealing member course of working, ceramic coating direct and sealed face contact, can greatly reduce coefficient of friction, reduce the wearing and tearing between rubber pad and the sealed face, even under long-term reciprocating motion or high frictional force's operational envir