O-shaped ring dynamic seal joint

An O-ring and dynamic sealing technology, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of affecting the service life of the O-ring, affecting the service life, scratching the O-ring, etc., to avoid wear and tear. Effects of damage, prolonging service life, reducing wear and damage

Inactive Publication Date: 2012-12-19
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In many dynamic sealing environments, the wear of the O-ring directly affects its service life, especially when the sealed parts need to be installed and disassembled frequently, the process of installation and disassembly greatly increases the wear of the O-ring , and even some directly scratch the O-ring, seriously affecting the service life of the O-ring

Method used

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  • O-shaped ring dynamic seal joint
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Embodiment Construction

[0010] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0011] see figure 1 , with reference to figure 2 , the O-ring dynamic sealing joint of the present invention includes an air intake inner cylinder 1, a sleeve 2 and a compression cap 3, the sleeve 2 is set on the upper part of the air intake inner cylinder 1, and the compression cap 3 is connected to the inside of the sleeve In the upper part, static sealing O-rings 4 and 5 are provided between the intake inner cylinder 1 and the sleeve 2 , and a static sealing O-ring 6 is provided between the sleeve 2 and the compression cap 3 . It also includes a dynamic sealing O-ring 7. An annular step 21 is provided in the sleeve 2. The dynamic sealing O-ring 7 is embedded in the annular step and is sealed by the compression cap 3; The wall is provided with a radial air inlet hole 11 and an axial gas passage 12, and the radial air inlet hole 11 commun...

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PUM

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Abstract

The invention relates to an O-shaped ring dynamic seal joint. The O-shaped ring dynamic seal joint comprises an air inlet inner cylinder, a sleeve and a compression cap, wherein static seal O-shaped rings are arranged between the air inlet inner cylinder and the sleeve and between the sleeve and the compression cap. The O-shaped ring dynamic seal joint further comprises a dynamic seal O-shaped ring, wherein an annular step is arranged in the sleeve, and the dynamic seal O-shaped ring is embedded in the annular step and capped by the compression cap; a radial air inlet hole and an axial air channel are arranged on the side wall of the air inlet inner cylinder, and the radial air inlet hole is communicated with the axial air channel; and the axial air channel arranged on the side wall of the sleeve is communicated with the axial air channel on the side wall of the air inlet inner cylinder and communicated with the annular step in the sleeve. The O-shaped ring dynamic seal joint disclosed by the invention can not only realize the sealing function, but also reduce and prevent the abrasion and the damages of the dynamic seal O-shaped ring due to installation and disassembly of a sealed part, thereby prolonging the service life of the O-shaped ring.

Description

technical field [0001] The invention relates to a mechanical seal, in particular to an O-ring dynamic sealing joint. Background technique [0002] Due to the simple structure, high pressure resistance and small size of the O-ring, it has been widely used in various sealing occasions. The traditional O-ring seals rely on the prestress generated by the extrusion deformation during assembly to achieve the sealing effect. In many dynamic sealing environments, the wear of the O-ring directly affects its service life, especially when the sealed parts need to be installed and disassembled frequently, the process of installation and disassembly greatly increases the wear of the O-ring , Some even directly scratch the O-ring, which seriously affects the service life of the O-ring. Therefore, we need a new type of O-ring dynamic sealing joint, which can not only realize the sealing function, but also reduce and avoid the wear and damage of the O-ring during the installation and disas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/46F16J15/16
Inventor 石占魁黄正铭陆皆炎王睿王衡张明华文宇沈科窦毅
Owner UNIV OF SHANGHAI FOR SCI & TECH
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