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Stop valve with quite high safety performance

A safety performance, cut-off valve technology, applied in the direction of functional valve types, control valves, valve devices, etc., can solve problems such as difficult operation, valve stem deformation, safety accidents, etc., to improve safety performance, reduce force, and avoid deformation Effect

Inactive Publication Date: 2017-09-01
JIANGSU YUANYANG VALVE INTELLIGENT CONTROL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the medium enters the valve from the bottom of the disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The operation is difficult, and it is easy to deform the valve stem, making it impossible to continue. use, which is likely to cause safety accidents

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  • Stop valve with quite high safety performance
  • Stop valve with quite high safety performance

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Embodiment Construction

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0016] Reference Figure 1-2 , A shut-off valve with extremely high safety performance, including a hollow structure of the valve body 1, a groove 2 is opened on the bottom inner wall of the valve body 1, and the groove 2 is embedded with a steel ball 3, and one side of the steel ball 3 The outer wall is provided with a through hole 5, the top outer wall of the valve body 1 is provided with a mounting hole directly above the steel ball 3, and a valve stem 4 is installed in the mounting hole, and the bottom of the valve stem 4 is welded to the top of the steel ball 3. The outer walls on both sides of the body 1 are respectively provided with...

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Abstract

The invention discloses a stop valve with quite high safety performance. The stop valve comprises a valve body of a hollow structure, and a groove is formed in the inner wall of the bottom of the valve body; a steel ball is embedded in the groove; a through hole is formed in the outer wall on one side of the steel ball; a mounting hole right above the steel ball is formed in the outer wall of the top of the valve body; a valve rod is mounted in the mounting hole; the bottom of the valve rod and the top of the steel ball are welded; a water inlet and a water outlet are separately formed in the outer walls on the two sides of the valve body; a water inlet pipe and a water outlet pipe are separately connected on the inner walls of the water inlet and the water outlet; and the ends, close to the steel ball, of the water inlet pipe and the water outlet pipe are matched with the steel ball. According to the stop valve, flow of a liquid can be limited through a one-way water inlet device and a one-way water outlet device, liquid backflow is effectively avoided, when the valve rod is rotated, stress of the valve rod is reduced, deformation of the valve rod is effectively avoided, and safety performance of the device is improved.

Description

Technical field [0001] The present invention relates to the technical field of stop valves, in particular to a stop valve with extremely high safety performance. Background technique [0002] Shut-off valve, also known as shut-off valve, is a forced-sealing valve, so when the valve is closed, pressure must be applied to the disc to force the sealing surface to not leak. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the friction force of the valve stem and the packing and the thrust generated by the pressure of the medium. The operation is difficult, and it is easy to deform the valve stem and cannot continue. It is easy to cause safety accidents when used. Summary of the invention [0003] The purpose of the present invention is to solve the shortcomings in the prior art, and propose a shut-off valve with extremely high safety performance. [0004] In order to achieve the above objectives, the present inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/18F16K5/06
CPCF16K5/06F16K15/1848
Inventor 陈英镇
Owner JIANGSU YUANYANG VALVE INTELLIGENT CONTROL CO LTD
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