Double-protection leaking preventive mother-son ball valve

A double insurance, ball valve technology, applied in valve details, valve device, valve operation/release device, etc., to achieve the effect of improving the design level, saving energy and environmental protection practical value, and eliminating the hidden danger of dripping

Inactive Publication Date: 2019-06-14
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods have slowed down the leakage problem of the valve to a certain extent, they have not fundamentally eliminated the leakage of the valve in the end.

Method used

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  • Double-protection leaking preventive mother-son ball valve

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the present invention clearer, the specific implementation manners of the present invention will be clearly and completely described below.

[0019] The basic structure of the "double insurance safety mother and child ball valve" involved in the present invention is as follows: figure 1 Shown: Mainly consists of female ball 1, child ball 2, female ball port 3, child ball port 4, female valve stem 5, child valve stem 6, upper female bearing 7, lower female bearing 8, valve seat 9 and valve body 10 composition.

[0020] The child sphere 2 is in the mother sphere 1 body, and the gap between each other is as small as possible, but it can relatively move relatively easily under the action of arm force;

[0021] The sub ball port 4 is slightly smaller than the cue ball port 3, and is closely matched with the respective gaskets to ensure good sealing; when the sub ball port 4 coincides with the cue ball port ...

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Abstract

The invention relates to a safety antitheft valve for controlling a liquid switch, and particularly relates to a double-protection leaking preventive mother-son ball valve. The double-protection leaking preventive mother-son ball valve comprises a valve body, a valve seat and a ball body, wherein the ball body is arranged in the valve body. The double-protection leaking preventive mother-son ballvalve is characterized in that the ball body comprises at least a mother ball body, and a son ball body which is positioned in the mother ball body; through ball ports are symmetrically formed in themother ball body and the son ball body; the mother ball body and/ or the son ball body can be rotated in the planes of central lines of the ball ports so as to switch on and off the valve. According to the double-protection leaking preventive mother-son ball valve, a novel structure is arranged, the valve is simply conveniently controlled, and the dropping leaking function is high; the double-protection leaking preventive mother-son ball valve is of an important significance in improving design level of the valve and is high in application value in preventing the valve from dropping leaking, saving energy and protecting the environment.

Description

technical field [0001] The invention relates to a safe and anti-theft valve for fluid switch control, especially a double-safety anti-theft mother-child ball valve. Background technique [0002] The traditional ball valve has the advantages of small fluid resistance, simple shape, small size, light weight, quick opening and closing, and convenient operation. It is widely used in the field of fluid switch control. However, the ball valve has high processing precision, high cost, and is not easy to use in high temperature. If there are impurities in the pipeline, it is easy to be blocked by impurities; moreover, during the switching process, due to the repeated friction loss between the ball and the sealing ring, its sealing performance is obviously reduced. This will cause severe dripping. [0003] The leakage phenomenon of the ball valve cannot be tolerated in many occasions, especially in the application field of hazardous chemicals (abbreviation of flammable, explosive, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/06F16K31/44F16K35/00
Inventor 仲元昌颜海涛彭瑞王雅璇胡浪杨汶珑
Owner CHONGQING UNIV
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