High-air-tightness gasket for pipe joint

A kind of pipe joint and density technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of increased use cost, thin pipe diameter, resin glue cannot be removed, etc., to achieve increased use cost and high air density. Effect

Inactive Publication Date: 2018-08-17
FANGXIAN QIYANG IND & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the connection between the high-pressure air pipe and the compressor on the heavy truck has been in a high-temperature state for a long time, and the diameter of the pipe is small, so copper or aluminum gaskets cannot be used, and rubber gaskets are not resistant to high temperatures. Currently, resin glue is used. For sealing, if the pipe joint needs to be disassembled, the resin glue cannot be removed, and the pipe joint must be replaced, which is labor-intensive and time-consuming, which increases the cost of use

Method used

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  • High-air-tightness gasket for pipe joint
  • High-air-tightness gasket for pipe joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0013] A high-air-density pipe joint gasket: including an outer sealing ring, an upper groove, an inner sealing ring, a central hole, a lower groove, and a connecting ring;

[0014] The outer sealing ring is ring-shaped, the inner middle position is connected to the outer edge of the annular connecting ring, the edge of the central hole of the connecting ring is connected to the center of the outer edge of the annular inner sealing ring, and the center of the inner sealing ring is provided with a central hole;

[0015] The thickness of the outer sealing ring is equal to that of the inner sealing ring, and the front and back sides are parallel;

[0016] The thickness of the connecting ring is smaller than the thickness of the outer sealing ring and the inner sealing ring, the upper surface of the connecting ring between the outer sealing ring and the inner sealing ring is an upper groove, and the lower part of the connecting ring between the outer sealing ring and the inner seal...

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Abstract

The invention discloses a high-air-tightness gasket for a pipe joint, and belongs to pipe joint accessories. The high-air-tightness gasket is characterized in the characteristic that the ductility andthe fluidity of nonferrous metals such as copper and aluminum are good is utilized, the gasket which has an inner sealing ring and an outer sealing ring on the two surfaces respectively is punched bya high-precision punching die, the two surfaces of the gasket have the characteristics of being small in contact areas with a nut and the cross section of the pipe joint, in the screwing process of the nut, due to the facts that the two sealing rings of the gasket on the two surfaces are small in contact areas with the nut and the cross section of the pipe joint and the ductility and the fluidityof the nonferrous metals such as the copper and the aluminum are good, and therefore the nut can be better attached; and the inner sealing rings and the outer sealing rings are arranged, so that thehigh air tightness can be guaranteed.

Description

technical field [0001] The invention relates to a high-air-density pipe joint gasket, which belongs to pipe joint accessories, and particularly relates to a high-air-density gasket used for pipe joints with high working temperature and small diameter. Background technique [0002] With the continuous updating of heavy-duty truck production technology, there are many kinds of control pipes on the truck, but all pipes are connected by pipe joints, and sealing gaskets are required between pipe joints and pipe joints for sealing. Commonly used pipe joint sealing gaskets include copper gaskets, aluminum gaskets, and rubber gaskets. Copper gaskets and aluminum gaskets are suitable for pipe joints with larger diameters, because the pipe joints are thick, strong, and the nuts can be tightened. Due to the better rubber sealing performance, it is suitable for pipe joints with smaller diameters. Because the pipe diameters are thinner and the strength is lower, the nuts cannot be fully ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/08
CPCF16J15/0881
Inventor 赵川会周明江付强
Owner FANGXIAN QIYANG IND & TRADE CO LTD
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