CN2283766Y

CN2283766Y - Self-closing valve when no water

Info

Publication number: CN2283766Y
Application number: CN 96238096
Authority: CN
Inventors: 陈维全
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-09
Filing date: 1996-08-09
Publication date: 1998-06-10
Anticipated expiration: 2006-08-09

Abstract

The utility model relates to a self-closing valve when no water. The utility model is characterized in that the utility model is provided with a pin, the shaft line of the pin is in parallel with the shaft line of a water inlet, the end face of the platform of the pin faces a blocking ring positioned at the water inlet, and the pointed end of the pin faces a valve core; a return spring is arranged between the inner end face of the platform of the pin and the hollow cavity wall of a valve body, and a boss is arranged on a valve core rod; a return spring is arranged between the upper end face of the boss of the valve core rod and a valve cover, and a pin groove which can be used for the insertion of the pointed head part of the pin is formed between the lower end face of the boss and the upper end face of a core piston. The utility model has the advantages that the utility model can effectively solve the problems that when no water is supplied, the water tap is not closed because of carelessness, and when water is supplied, the water is wasted. The utility model surely plays the function of automatic protection.

Description

A kind of anhydrous self closing stop valve

The utility model relates to a kind of liquid valve, especially for the valve that can close automatically when anhydrous in the water transport pipeline.

In daily life, such situation often occurs: the back people that cut off the water have forgotten and have closed water tap, water tap is other but also unmanned when treating not only to come water, wastes water in large quantities so the lighter causes for a long time, and weight person the water logging building is taken place, caused the consequence of tremendous economic loss even threat personal safety.

The utility model purpose is: overcome the deficiency of prior art, what provide a kind of and be installed in the water transport pipeline, can work automatically when anhydrous closes water valve.

It is identical with common water valve that the utility model is achieved in that, is made up of valve body, spool, and the water inlet of opening on the axis of spool and the valve body, water outlet axis are perpendicular, it is characterized in that:

(1), also have the pin that an axis parallels with the water inlet axis, pin one end is platform-like, towards the baffle ring at water inlet place, and the other end is the tip shape, towards spool,

(2), between pin platform interior edge face and valve cavity wall, Returnning spring is housed,

(3), a boss is arranged on the valve core rod, between this boss upper-end surface and valve gap, Returnning spring is housed, forms one between the upper-end surface of this boss lower end surface and valve core piston and can hold the cotter way that the pin tip inserts.

When realizing the utility model, can on the cylinder of the top of valve core piston body, be provided with seal groove, seal ring is housed.

Effect of the present utility model is: Open valve then needs manual operation to realize to utilize hydraulic controlled valve to realize closing automatically, coming when anhydrous behind the water again, this just can guarantee both to make when anhydrous people to forget effectively and turn off the tap, also can not overflow when coming water again, can not cause unnecessary loss again.

Accompanying drawing is the utility model embodiment general structure sectional view.

Below in conjunction with drawings and Examples the utility model is done further narration:

As shown in the figure: valve is made up of valve body 1, spool 2, valve gap 3, Returnning spring 4 and 5, pin 7, sealing film 8, baffle ring 9, O RunddichtringO 11 in this example, during use water inlet 6, water outlet 12 is inserted in the waterpipe.

The utility model working principle (with reference to accompanying drawing): when water supply line has water, need the people for mentioning spool 2, spring 5 is compressed by the pressure effect of water by sealing film 8 surfaces, pin 7 inserts in the spool cotter way 10 thereupon, fixed spool, valve core piston was mentioned, can not be fallen by waterway in valve body this moment, made water valve be in open mode.

When water supply line was anhydrous, along with the minimizing of sealing film 8 surperficial hydraulic pressure, pin 7 was subjected to the elastic force effect of spring 5, withdraws from from spool cotter way 10.Spool 2 is subjected to the elastic force effect of spring 4, moves down water valve cuts out, thus protective action when reaching anhydrous.

O RunddichtringO 11 on the valve core piston body plays sealing water, and anti-sealing enters spool top, thereby guarantees the working life of parts such as spring.

Valve gap 3 except that fixed spool, the intensity of pressure of also adjustable card spring 4.

Claims

1, a kind of anhydrous self closing stop valve is made up of valve body, spool, and the water inlet of opening on the axis of spool and the valve body, water outlet axis are perpendicular, it is characterized in that:

2, self closing stop valve according to claim 1 is characterized in that: be provided with seal groove on the cylinder of the top of valve core piston body, seal ring is housed.