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No-leakage spherical valve rod

A non-leakage, spherical technology, applied in valve details, valve devices, shaft seals, etc., can solve the problems of large rotational force, difficult processing, and high cost of ceramic valve stems, and achieve low cost, long service life, structural design and assembly Simple and reasonable effect

Inactive Publication Date: 2007-05-02
湖南银通科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing valve body and stem adopts the combination of garden pins and O-rings. It cannot be pressed too loosely during use, and it is easy to leak if it is loose. If it is pressed too tightly, it will generate a large rotational force. It is also easy to wear after long-term use, causing leakage due to wear
Ceramic valve stems are also used in the prior art. However, the cost of ceramic valve stems is high, and the processing precision requirements are also high. The processing is difficult, and it is easy to break if it is slightly improper.

Method used

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  • No-leakage spherical valve rod

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Embodiment Construction

[0007] Referring to accompanying drawing 1, its structure is that the spherical connecting rod shaft 1 passes through the through hole of the rubber pad pressing plate 2, so that the spherical surface of the spherical connecting rod shaft 1 is closely connected with the end face of the connecting O-ring on the rubber pad pressing plate 2, thereby to the seal. The plane bearing 3 is closely attached to the upper part of the rubber pad pressure plate 2 through the spherical connecting rod shaft 1, and the plane bearing pressure plate 4 is set on the plane bearing 3 through the spherical connecting rod shaft 1 to achieve lossless friction. The pagoda spring 5 passes through the spherical connecting rod shaft The shaft of 1 is tightly pressed on the plane bearing pressure plate 4, and the positioning pin 6 (first press the pagoda spring) is horizontally bolted on the shaft of the spherical connecting rod shaft 1 with a horizontal hole, so as to play the role of the spherical surfac...

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Abstract

The no-leakage spherical valve rod has the structure comprising spherical link rod shaft with spherical surface contacting closely with the end surface of the holding rubber plate with O-ring, planar bearing contacting with the holding rubber plate, planar bearing holding plate on the planar bearing, positioning pin inserted inside the spherical link rod shaft, and fan-shaped positioning plate together with the holding rubber plate set on the valve body. The present invention has the advantages of excellent sealing performance, simple and reasonable structure, long service life, low cost, etc.

Description

technical field [0001] The invention relates to a valve body-a spherical non-leakage valve rod installed on IC card smart gas and IC card smart water valves, and using the IC card to control the switches of natural gas, hydraulic gas and gas pipelines. The utility model belongs to the technical field of electric control valves and manual valves. Background technique [0002] The existing valve body and stem adopts the combination of garden pins and O-rings. It cannot be pressed too loosely during use, and it is easy to leak if it is loose. If it is pressed too tightly, it will generate a large rotational force. It is also easy to wear after long-term use, causing leakage due to wear. Ceramic valve stems are also used in the prior art. However, the cost of ceramic valve stems is high, and the processing precision requirements are also high, the processing is difficult, and it is easy to break if it is slightly improper. Contents of the invention [0003] The object of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K5/08F16K41/00
Inventor 阮迪荣
Owner 湖南银通科技有限责任公司