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Valve of double non-return device with synchronous sealed actuating device

A technology of check device and adjustment device, applied in valve device, control valve, functional valve type and other directions, can solve problems such as poor control accuracy, easy valve flap vibration, and large opening force.

Inactive Publication Date: 2006-07-05
SHANGHAI SHANGLONG VALVE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the defects that when it is working, the opening force is large, the valve disc is easy to shake, the running stability is poor, the control accuracy is poor, and the controllable range is small.

Method used

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  • Valve of double non-return device with synchronous sealed actuating device
  • Valve of double non-return device with synchronous sealed actuating device

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Embodiment Construction

[0006] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0007] In the figure, the present invention is composed of a valve body 6, a fixed sleeve 7, a first-stage non-return device 2, a second-stage non-return device 3, a spring 4, a connecting rod 5 and a synchronous seal adjustment device 1; the synchronous seal adjustment device 1 consists of The adjusting nut 11, the spring 12, the screw sleeve 13 and the connecting rod 5 are composed; the spring 12 and the adjusting nut 11 are arranged in the valve flap 22 of the first-stage check device, and the first-stage check device 2 is arranged in the valve The inlet section is composed of the valve seat 21 fixed on the valve body 6 and the valve disc 22 arranged in the fixed sleeve. The second-stage check device 3 is arranged on the outlet section of the valve, and the valve seat 32 and the valve flap 31 arranged in the valve body;

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PUM

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Abstract

A valve of double stage non ¿C return unit with synchronous seal regulation unit is prepared as forming seal regulation unit by regulation nut, spring, screw bush and link lever; setting regulation nut and spring in valve clack of the first stage non ¿C return unit and setting said non ¿C return unit at inlet section of valve; setting the second stage non ¿C return unit at outlet section of valve and connecting valve clacks of the first and the second stage non ¿C return unit to each other by link lever; utilizing regulation nut and spring of regulation unit to set prefastening force of valve clack.

Description

Technical field: [0001] The invention belongs to the technical field of valves, in particular to a check valve with a synchronous sealing adjustment device. Background technique: [0002] The disc of the sealing device of the existing valve adopts a solid disc sliding structure. It has the defects of large opening force, easy shaking of the valve disc, poor running stability, poor control precision and small controllable range during operation. Invention content: [0003] The purpose of the present invention is to provide a double-stage check device valve with a synchronous sealing adjustment device which can effectively overcome the above-mentioned defects, and both check devices can be reliably sealed at the same time. In order to achieve the above purpose, the technical solution adopted in the present invention is: a double-stage check device valve with a synchronous seal adjustment device, which is mainly composed of a valve body, a valve seat, a fixed sleeve, a first...

Claims

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Application Information

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IPC IPC(8): F16K15/02
Inventor 季能平
Owner SHANGHAI SHANGLONG VALVE FACTORY
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