Unlock instant, AI-driven research and patent intelligence for your innovation.

Lift type vacuum breaking valve

A technology of vacuum breaking valve and valve seat, which is applied in the direction of lift valve, safety valve, balance valve, etc., can solve the problems of inability to instantaneously destroy the system vacuum, small suction volume, and seal blocking, etc., and achieves low failure rate and pressure bearing. Good performance, avoid the effect of jamming

Inactive Publication Date: 2014-06-25
WUHAN DAYU VALVE
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing vacuum breaker valve has a small suction capacity and cannot quickly respond to negative pressure to quickly suck in air, so that it cannot break the vacuum in the system instantaneously, resulting in backflow pollution; and due to scaling and other reasons, the phenomenon of seal jamming often occurs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lift type vacuum breaking valve
  • Lift type vacuum breaking valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to facilitate a clearer understanding of the present invention, but they do not limit the present invention.

[0012] like figure 1 As shown, the lifting vacuum breaker valve includes a valve body 1, the upper end of the valve body 1 is provided with a valve seat 2, and the top end of the valve seat 2 is provided with a valve cover 3, and the valve seat 2 and the valve cover 3 There is an air inlet 4 between them, and the valve seat 2 is fixedly connected with a self-sealing secondary structure 5, which is a rubber sealing ring, and the outer periphery of the self-sealing secondary structure 5 is fixed on the valve seat 2. On the inner wall, an annular conical surface 501 is provided on the upper part of the inner periphery of the self-sealing secondary structure 5, and an annular protrusion 502 is arranged on the lower part of th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a vacuum breaking valve and particularly relates to a lift type vacuum breaking valve. The lift type vacuum breaking valve comprises a valve body, wherein a valve seat is arranged at the upper end of the valve body, a valve cap is disposed at the top end of the valve seat, an air inlet is formed between the valve seat and the valve cover, the valve seat is fixedly connected with a self-sealing pair structure, an upper guide holder is arranged at the top end in the valve body, a lower guide holder is arranged at the bottom end in the valve body, a guide shaft is connected between the upper guide holder and the lower guide holder in a sliding mode, a valve clack is arranged on the guide shaft, and a spring sleeves the guide shaft between the valve clack and the lower guide holder. The lift type vacuum breaking valve can rapidly respond to negative pressure to rapidly suck air, the suction amount is large, and pipeline vacuum can be rapidly and thoroughly eliminated; by means of double guide structures at the upper and lower ends of the valve, reliable sealing of the valve can be guaranteed, and reliable opening or closing and absence of jam of the valve can be achieved; the lift type vacuum breaking valve is simple and compact in structure and low in failure rate.

Description

technical field [0001] The invention relates to a valve, in particular to a lift type vacuum breaking valve. Background technique [0002] In the pipeline system, when the operating pressure of the system changes suddenly or stops running, negative pressure is often generated, causing backflow pollution. Therefore, relevant national standards require measures to prevent backflow pollution, and vacuum breaker valves are one of the main measures to prevent backflow pollution. However, the existing vacuum breaker valve has a small suction capacity and cannot quickly respond to negative pressure to quickly suck in air, so that it cannot break the vacuum in the system instantaneously, resulting in backflow pollution; and due to scaling and other reasons, seal jamming often occurs. Contents of the invention [0003] The object of the present invention is to provide a lift-type vacuum breaker valve to solve the above problems. The valve can quickly respond to negative pressure, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/04
CPCF16K17/0413F16K1/36F16K1/42
Inventor 李习洪何锐
Owner WUHAN DAYU VALVE
PatSnap Eureka logo

PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.

X (Twitter)LinkedInYouTubeSubstack

© 2026 PatSnap. All rights reserved. 

Terms of Service

 | 

Privacy policy

 | 

Modern Slavery Act Transparency Statement