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Manual stop valve

A manual shut-off valve and valve body technology, applied in the direction of lift valve, valve device, engine components, etc., can solve the problems of breakage of the pressure rod support ear seat, large pressure rod, boom force, etc., and achieve the effect of easy operation and simple structure

Active Publication Date: 2010-07-21
WUJIANG WANGONG ELECTROMECHANICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The use of manual shut-off valves is quite common, but the current manual shut-off valves are all single-piece. Due to the large area of ​​the valve, there is a large back pressure under the action of compressed air. It takes a lot of arm strength to open the valve. The force is large, often improper force, causing the pressure rod support ear seat to break

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Embodiment Construction

[0015] figure 1 It is a schematic cross-sectional view of the structure of the manual shut-off valve of the present invention when it is closed. The novel manual shut-off valve of the present invention mainly includes a valve body 1. A large valve core 6 is arranged in the valve body 1. There are 6-10 long grooves 10 on the large valve core 6. A small valve core 2 is embedded in the large valve core 6. The body 1 is also provided with a bonnet 4, the small spool 2 is connected with the bonnet 4 by a spring 3, and the large spool 6 and the small spool 2 are formed by connecting a depression rod 9 through a rod. Shaft pin 8 that is provided with on 9, small spool 2 bottoms are provided with small spool gasket 5, and big spool 6 bottoms are provided with big spool gasket 7.

[0016] Preferably, the area ratio of the small valve core 2 to the large valve core 6 is 0.25-0.1.

[0017] see Figure 2 to Figure 3 , pulling down the pressure rod 9 will first open the small valve core...

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Abstract

The invention discloses a manual stop valve, which mainly comprises a valve body, wherein a large valve core is arranged in the valve body, six to ten slotted grooves are formed on the large valve core, a small valve core is embedded on the large valve core, a valve cover is also arranged on the valve body, the small valve core and the valve cover are connected through a spring, a mechanism formed by the large valve core and the small valve core is connected with a press rod through a support rod, and a shaft pin is arranged on the press rod. The stop valve has the advantages of simple structure, long service life, easy operation and labor saving.

Description

technical field [0001] The invention relates to a shut-off valve, in particular to a manual shut-off valve. Background technique [0002] The use of manual shut-off valves is quite common, but the current manual shut-off valves are all single-piece. Due to the large area of ​​the valve, there is a large back pressure under the action of compressed air. It takes a lot of arm strength to open the valve. The force is large, and often the force is improper, causing the pressure bar to support the ear seat to break. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the present invention provides a manual shut-off valve, which can be opened only with relatively small force. [0004] In order to solve the above technical problems, the manual shut-off valve of the present invention mainly includes a valve body, and a large valve core is arranged in the valve body, and 6-10 long grooves are opened on the large valve core, and a small valve ...

Claims

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Application Information

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IPC IPC(8): F16K1/00F16K1/36F16K1/54
Inventor 郑志刚
Owner WUJIANG WANGONG ELECTROMECHANICAL EQUIP