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Self-locked valve

A self-locking, valve technology, applied in the direction of control valve, valve device, functional valve type, etc., can solve the problems of increasing system complexity, manufacturing cost, complex structure and operation, etc., to simplify the structure, reduce manufacturing cost, valve simple structure

Inactive Publication Date: 2007-08-01
李彩玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure and operation of these devices are generally more complicated, thereby increasing the complexity and manufacturing cost of the overall system

Method used

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Examples

Experimental program
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Embodiment Construction

[0011] As shown in the figure, the self-locking valve of the present invention includes a valve body 1 , a valve core 2 and a limiting guide sleeve 3 . The valve body 1 is a cylindrical shell, including an inlet port 11, an outlet port 12 and an inner cavity. According to different shapes, the internal cavity is divided into a first tapered hole part 13 with a gradually decreasing diameter from the air inlet end 11 to an air outlet end 12, a second cylindrical hole part 14, and a third tapered hole part with a gradually increasing diameter. 15 and the fourth cylindrical hole 16. The diameter of the fourth cylindrical hole 16 is larger than the maximum diameter of the third tapered hole portion 15 .

[0012] The valve core 2 is installed in the inner cavity of the valve body 1 and is divided into a cylindrical part 21 and a cone part 22 . The diameter of the cylindrical part 21 is equivalent to the diameter of the second cylindrical hole part of the valve body, so as to coope...

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PUM

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Abstract

The invention discloses a self-locking valve made from plastic, wherein, the taper degrees of engaged valve and valve element is lower than 45 degrees. In aeration, the invention uses external gas pressure to open the valve and aerate the internal space; when the internal space is filled with gas, the pressure of internal space can close the valve. The invention can close the valve even when the internal gas is consumed.

Description

technical field [0001] The invention relates to a valve, in particular to a self-locking valve which can be automatically closed and kept self-locking under gas internal pressure. Background technique [0002] When it is necessary to inflate the internal space of a certain device, a valve body is usually installed at the inflation port. When inflating, the valve body is opened. When the gas is full, the valve body needs to be closed, and the internal gas consumption is reduced. The valve remains closed to prevent outside gas from entering and internal gas from escaping. In the prior art, threaded or cam mechanisms are mostly used, as well as external air pressure, oil pressure, electric and magnetic devices to start or close the valve. These devices are generally complicated in structure and operation, thereby increasing the complexity and manufacturing cost of the overall system. Contents of the invention [0003] In order to solve the above-mentioned problems in existi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/20
Inventor 李彩玉
Owner 李彩玉