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Differential corrugated valve

A bellows valve and bellows technology, applied in the field of differential bellows valve, can solve the problems of reducing valve service life, mechanical wear, reducing safety and reliability, etc., and achieve the effect of safe and reliable use and simple operation.

Inactive Publication Date: 2007-08-22
卢秉威
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gate valve is opened and closed by the lifting and falling of the gate. Whether it is manual or electric, the gate and the slideway will cause friction, causing mechanical wear and reducing the service life of the valve.
Pipeline valves with threaded switch structure need to be equipped with packing seals, but leakage often occurs, which reduces the safety and reliability of use.
It is difficult to open and close the valve when the project diameter is large
Affect sealing performance and service life

Method used

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Embodiment Construction

[0008] See Fig. 1, the specific structure of the present invention is as follows: the connecting pipes 1 and 21 at both ends are respectively connected to the two ends of the housing 7, the housing 7 is provided with a control hydraulic port 6, and the housing 7 is connected with a valve with a rib plate 11 Seat 12, the valve port of valve seat 12 is tapered mouth. The outer ends of the left and right bellows 8,16 are respectively connected to both ends of the connecting pipes 1,21 through fixed blind plates 5,19, and the other ends of the left and right bellows 8,16 are respectively connected to sliding blind plates 10,15. Fixedly connect the distance pipe 14 between the sliding blind plates 10,15, on the distance pipe 14 fixedly connect the valve 13 that can be opened, the valve 13 has a tapered sealing edge, and is sealed with the tapered valve port of the valve seat 12. The outer edges of the fixed blind plates 5 and 19 are fixedly connected to the guide tubes 9 and 18 res...

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Abstract

The present invention relates to a differential corrugate valve. It includes shell body, two end connecting pipes and valve seat, and its is characterized by that two end connecting pipes are respectively connected with one ends of left corrugate pipe and right corrugate pipe by means of fixed blind plates, and another ends of said left corrugate pipe and right corrugate pipe are respectively connected with slide blind plates, between two slide blind plates a spacing pipe is fixedly connected, on the spacing pipe a valve which can be opened is fixedly connected, the external edges of two fixed blind plates are respectively fixedly connected with flow-guiding barrels, two slide blind plates are respectively slide-positioned on two flow-guiding barrels, on the fixed blind plate connecting with left and night corrugate pipes and on the shell body are respectively set two control hydraulic holes.

Description

technical field [0001] The invention belongs to a pipeline valve, in particular to a differential bellows valve. Background technique [0002] Valves are usually used to control the on-off and flow of the liquid medium in the pipeline, such as gate valves and stop valves. The opening and closing of the gate valve is completed by the lifting and falling of the gate plate. Whether it is manual or electric, the gate plate will rub against the slideway, causing mechanical wear and reducing the service life of the valve. The pipeline valves with threaded switch structure need to be provided with packing seals, but leaks often occur, which reduces the safety and reliability of use. The opening and closing of the valve will be difficult when the project diameter is large. Affect sealing performance and service life. Contents of the invention [0003] The purpose of the present invention is to provide a differential corrugated valve, which cancels the threaded switch structure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K31/126
Inventor 卢秉凯卢秉威
Owner 卢秉威