CN205781104U - The general water check valve of smooth and easy formula of spraying water - Google Patents

Abstract

The utility model discloses a kind of water spray general water check valve of smooth and easy formula, including valve seat (2), valve body, spool (10), valve gap (7), described valve body includes outer valve (5) and the inner valve body (6) being connected, one end of this outer valve (5) connects with valve gap (7), its other end connects with valve seat (2), in described valve seat (2), equipped with spool bracing frame (4) between outer valve (5) and spool (10), the outer wall of described spool bracing frame (4) be provided with brace rod (13) and with described valve seat (2), fluid passage (16) is formed between outer valve (5).This utility model solves because the counteracting force of spool can not be pushed open spool, cannot carry the problem of liquid by liquid, regardless of the pressure size issue of scrubber, can be suitably used for the scrubber in any vehicle, and versatility is widely.

Description

The general water check valve of smooth and easy formula of spraying water

Technical field

The present invention relates to a kind of valve, be specifically related to a kind of water check valve being applied to scrubber.

Background technology

At present, being applied to the water check valve of scrubber is a kind of to be provided with the cleaning mixture of pressure by washing pump and push open and use spool The spool that spring is pushed down, makes spraying cleaning solution go out, and after washing pump quits work, the valve core spring within water check valve is by spool bullet Returning, closed by pipeline, the cleaning mixture in whole pipeline will not reflux, and when being again turned on scrubber's work, can will wash immediately Wash liquid injection to forward and backward windshield.Water check valve is that the elastic force of the valve core spring internal by it pushes down spool, is not working Time (no pressure) be to close, when in scrubber without cleaning mixture or user by cleaning mixture with when only needing again to add cleaning mixture, So cannot discharge because of the normally closed of water check valve from the pump chamber of washing pump to the air connecting this section of channel interior of water check valve, if There is air inside pump chamber, washing pump can be caused to dally, it is impossible to the ability of conveying cleaning mixture is provided, need manually by internal for pump chamber empty After gas emptying, overall washing system can normally work, and reduces work efficiency.Generally, the spool of water check valve is by there being pressure After liquid is pushed open, there is pressure fluid to flow through the spool of water check valve simultaneously, also can bring reverse thrust to spool, when pressure continues Rise, retroaction also may proceed to increase, when the fluid pressure of spool both ends of the surface is equal, then liquid because of valve core spring elastic force without Method pushes spool open, causes overall washing system do not spray water or spray water the most smooth.Therefore, this water check valve all can only be public in the restriction of design Claim to work under pressure limit, thus greatly reduce the versatility of water check valve.

Summary of the invention

It is an object of the invention to overcome above-mentioned deficiency, and provide a kind of water spray general water check valve of smooth and easy formula, it is intended to Improve its water spray property and versatility.

The present invention is to realize by following technical solution: the general water check valve of smooth and easy formula of spraying water, including valve seat, valve body, valve Core, valve gap, described valve body includes outer valve and the inner valve body being connected, one end of this outer valve connects with valve gap, its other end with Valve seat connects, and equipped with spool bracing frame between described valve seat, outer valve and spool, the outer wall of described spool bracing frame is provided with Brace rod and and between described valve seat, outer valve formed fluid passage.

After using present configuration, when liquid enters valve seat valve pocket, the outer wall of spool bracing frame only can be risen by its pressure Effect, without working the spool in spool bracing frame, solves because the counteracting force of spool can not be pushed open by liquid Spool, the problem of liquid cannot be carried, regardless of the pressure size issue of scrubber, can be suitably used for the washing in any vehicle Device, versatility is widely.

Accompanying drawing explanation

The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.

Fig. 1 is that the present invention sprays water the mounting structure schematic diagram of the general water check valve of smooth and easy formula.

Fig. 2 is the axonometric chart of the spool bracing frame in Fig. 1.

Detailed description of the invention

Understanding with reference to Fig. 1, Fig. 2, the present invention sprays water the general water check valve of smooth and easy formula, including valve seat 2, valve body, spool 10 (and valve Core spring 3), valve gap 7, described valve body includes outer valve 5 (in outside) and the inner valve body 6 (in inside) being connected, this outer valve 5 One end connects with valve gap 7, its other end connects with valve seat 2, props up equipped with spool between described valve seat 2, outer valve 5 and spool 10 Support 4, the outer wall of described spool bracing frame 4 be provided with brace rod 13 and and form liquid between described valve seat 2, outer valve 5 and lead to Road 16 (see Fig. 2).

In order to improve the automaticity of its aerofluxus, on the inwall of described valve gap 7 and in the end of its import, it is provided with interior breach 20, equipped with valve block 8 and valve block spring 9 on described inner valve body 6 and in the interior indentation, there near valve gap 7；At described inner valve body 6 It is provided with air-vent 15 (this air-vent 15 is communicated with ambient atmosphere) by outer valve 5, between described inner valve body 6 and valve block 8 There is the gap 14 communicated with this air-vent 15.

Wherein, the inside (i.e. the outside of inner valve body 6) of outer valve 5 has valve body valve pocket 17 and as degassing function, liquid The cavity entered；The inside of valve seat 2 has the cavity that valve seat valve pocket 18 flows out as liquid, and with on spool bracing frame 4 outer wall Fluid passage 16 communicate；Described spool bracing frame 4 is one to be had on the cylindrical container of opening, its outer wall in the middle of it and has A plurality of brace rod cincture, the two ends of this brace rod mate with valve seat, outer valve respectively, valve core spring with one end of spool fixing also It is placed in the cylindrical container of spool bracing frame opening.The outlet of valve seat 2 can be connected by dead ring and pipeline keeps out the wind with forward and backward Nozzle connection on glass, the pump chamber that the import of valve gap 7 is connected with the washing pump providing pressure by pipeline connects.

Operation principle of the present invention is as shown in drawings: this general check-valves (liquid no pressure), valve in the non-operational state Core 10 is owing to being moved right by the elastic force of valve core spring 3, logical by be connected with valve body valve pocket and valve seat valve pocket on valve body, valve seat Road is closed, and the liquid of valve seat valve pocket cannot be back in valve body valve pocket.Promote to the right valve block by the elastic force of valve block spring 9 simultaneously The interior breach defined position of 8 to valve gap 7, makes the gap 14 on valve body valve pocket 17, inner valve body, air-vent 15 and the import of valve gap 7 The atmosphere extraneous with outer valve.When washing pump works, if having air in the pump chamber of washing pump and pipeline, washing pump is empty Then the liquid of pressure cannot be provided with, and being equivalent to non-operational state, then the air in washing pump pump chamber and pipeline can pass through Valve gap import, valve gap, valve body valve pocket, gap, air-vent are discharged, and a denier air emptying, liquid initially enters in washing pump pump chamber Liquid is made to form pressure.Liquid enters valve gap 7 by valve gap import again and promotes valve block 8 to the left, makes valve body valve pocket, gap with saturating The channel enclosed (valve block spring is compressed simultaneously) of pore connection, the liquid in valve body valve pocket continues push spool open and compress spool Spring 3, liquid flows in valve seat valve pocket 18, then flows out from the outlet of valve seat 2.When liquid enters valve seat valve pocket, spool bracing frame During fluid passage on outer wall, the outer wall of spool bracing frame only can be worked by its pressure, without in spool bracing frame Spool works, it is to avoid the counteracting force of spool is caused water check valve to close by liquid cannot carry liquid problem.

Claims (1)

1. the water spray general water check valve of smooth and easy formula, including valve seat (2), valve body, spool (10), valve gap (7), it is characterised in that: described Valve body includes outer valve (5) and the inner valve body (6) being connected, one end of this outer valve (5) connects with valve gap (7), its other end with Valve seat (2) connects, and props up equipped with spool bracing frame (4), described spool between described valve seat (2), outer valve (5) and spool (10) The outer wall of support (4) be provided with brace rod (13) and and form fluid passage (16) between described valve seat (2), outer valve (5).