CN205190775U

CN205190775U - High tucking type valve

Info

Publication number: CN205190775U
Application number: CN201521050857.0U
Authority: CN
Inventors: 陈平君; 焦光辉; 马波; 李松; 赵群; 岳振江; 刘文朝; 王林林; 陶桂林; 韦超
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-16
Filing date: 2015-12-16
Publication date: 2016-04-27
Anticipated expiration: 2025-12-16

Abstract

The utility model relates to a high tucking type valve specifically is the high tucking type valve who is used for the sample on the high pressure line, emptys and operate. Include the valve body, be connected with the entrance point of non return device at the valve body exit end. The utility model discloses in extension case life, has also reduced and has not on -the -spotly sternly led to the fact because of the case " drip, leak " the safe risk brought of phenomenon.

Description

High-pressure needle valve

Technical field

The utility model relates to high-pressure needle valve, specifically on a kind of high pressure line for sampling, the high-pressure needle valve of emptying manipulation.

Background technique

High pressure line in use, often needs to utilize high-pressure needle valve to carry out emptying, sampling operation to the liquid in pipeline, and the common needle type valve used at present takes cone seal, and its sealing surface is a line.Time in the middle of ground, needle type valve place flow process, exist owing to all there being liquid before and after the phase, therefore working life is very long, but when needle type valve is used for emptying, sampling operation, its exit end communicates with air for a long time, therefore spool is often in the environment of water and air mixing, seal spool line is very easily corroded, and then cause valve to fit badly, occur dripping, leaking phenomenon, there is potential safety hazard.

Model utility content

The utility model is intended to solve the problem, thus provides a kind of high-pressure needle valve that can extend spool working life.

The utility model solves described problem, and the technological scheme of employing is:

A kind of high-pressure needle valve, comprises valve body, is connected with the entrance point of check device at valve outlet end.

Adopt the utility model of technique scheme, compared with prior art, its outstanding feature is:

While prolongation spool working life, decrease and on-the-spotly sternly not cause because of spool " drip, leak " security risk brought of phenomenon.

As preferably, the utility model further technological scheme is:

Pedestal in check device is equipped with spring seat, and spring seat is equipped with non-return valve block by central shaft, and suit spring is on center shaft housed between non-return valve block and spring seat, and non-return valve block is located at the outlet end near valve body.

The outlet end of check device pedestal is provided with internal thread.

Valve outlet end through hole is equal with the through hole of check device entrance point.

Valve body and check device are welded and fixed.

Spring is stage clip.

Non-return valve block is cone structure, adapts with the through hole at the taper position in pedestal.

Accompanying drawing explanation

Fig. 1 is the utility model example structure schematic diagram;

In figure: valve body 1; Spool 2; Non-return valve block 3; Central shaft 4; Stage clip 5; Spring seat 6; Check device 7.

Embodiment:

Below in conjunction with embodiment, the utility model is described in further detail, and object is only to understand the utility model content better, and therefore, the cited case does not limit protection domain of the present utility model.

See Fig. 1, the entrance point of check device 7 is welded with at the outlet end of valve body 1, spring seat 6 pedestal in check device 7 is equipped with, spring seat 6 is equipped with non-return valve block 3 by central shaft 4, non-return valve block 3 is cone structure, adapt with the through hole at the taper position in pedestal, the stage clip 5 be sleeved on central shaft 4 is housed between non-return valve block 3 and spring seat 6, non-return valve block 3 is located at the outlet end near valve body 1, stage clip 5 is utilized to make non-return valve block 3 be in normally off, the outlet end of the pedestal of check device 7 is provided with internal thread, valve body 1 outlet end through hole is equal with the through hole of check device 7 entrance point.

The internal thread of the entrance point of valve body 1 is connected with pipe nipple on pipeline, after opening valve, liquid in pipeline is made to flow through entrance point, spool 2, the arrival non-return valve block 3 of valve body 1 successively, non-return valve block 3 has stage clip 5 below, due to the elasticity of stage clip 5, non-return valve block 3 is made to be in closed condition for a long time, after high pressure water encounters non-return valve block 3, just back down non-return valve block 3, the outlet end through check device 7 flows out.

After emptying or sampling terminate, close needle type valve, when valve closing, non-return valve block 3 is closed rapidly under stage clip 5 acts on, and make the chamber before non-return valve block 3 be full of liquid, air cannot enter chamber, the outlet end of the pedestal of check device 7 is provided with internal thread, is convenient to be connected with other pipe fittings.

The utility model is by check device and high-pressure needle valve being combined, the outlet passage of high-pressure needle valve is made to be full of liquid all the time, therefore in make the spool of high-pressure needle valve also be in all the time environment that liquid is full of, relative to water and air hybird environment, the speed that spool is corroded reduces, and working life extends.

The foregoing is only the better feasible embodiment of the utility model, not thereby limit to interest field of the present utility model, the equivalence change that all utilization the utility model specifications and accompanying drawing content thereof are done, be all contained within interest field of the present utility model.

Claims

1. a high-pressure needle valve, comprises valve body, it is characterized in that: the entrance point being connected with check device at valve outlet end.

2. high-pressure needle valve according to claim 1, it is characterized in that: the pedestal in check device is equipped with spring seat, spring seat is equipped with non-return valve block by central shaft, and suit spring is on center shaft housed between non-return valve block and spring seat, and non-return valve block is located at the outlet end near valve body.

3. high-pressure needle valve according to claim 1, is characterized in that: the outlet end of check device pedestal is provided with internal thread.

4. high-pressure needle valve according to claim 1, is characterized in that: valve outlet end through hole is equal with the through hole of check device entrance point.

5. high-pressure needle valve according to claim 1, is characterized in that: valve body and check device are welded and fixed.

6. high-pressure needle valve according to claim 2, is characterized in that: spring is stage clip.

7. high-pressure needle valve according to claim 2, is characterized in that: non-return valve block is cone structure, adapts with the through hole at the taper position in pedestal.