CN87210709U

CN87210709U - Self-closed flush valve

Info

Publication number: CN87210709U
Application number: CN 87210709
Authority: CN
Inventors: 王延玲; 周丰正
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-11-06
Filing date: 1987-11-06
Publication date: 1988-05-25

Abstract

The utility model relates to a self-closing flushing valve, which is composed of a valve body, a piston component, a pressure relief valve and a press-button switch. Compared with the prior art, the self-closing flushing valve has the advantages of simple structure, small size, light weight, metallic material saving, high working sensitivity, high reliability, which is used as the flushing valve of a water closet or the tap of running water.

Description

Self-closed flush valve

A kind of valve particularly is applicable to the push button flushing valve that toilet stool washing uses.

That toilet flush valve has is foot-operated, handle type structure more complicated all, and the sound is bigger in using, and influences environment.A kind of " Milky Way water-saving valve " arranged at present, and it adopts pressure reduction self-closing valve structure, handles with push-button switch, and the sound that discharges water is little, the energy using water wisely, but this valve body is long-pending big, and part is many, complex structure.Every is used 1.36 kilograms of copper, and seal unreliable.

The purpose of this utility model provides a kind of simple in structure, and sealing is reliable, the button pressure-gradient type self-closing flushing valve that work is sensitive.

The utility model is achieved in that it is made up of valve body, piston component, pressure release valve and press button, and its adopts straight or two kinds of housings of side general formula; Housing middle part dress arc diffusion sealing awl, the linear sealing on arcwall face of the sealing mat of piston; At the pressure release valve of piston middle part installation by spring top clamping, the bar of pressure release valve stretches to delivery port, and mounting spring button on housing sidewall, button spindle can promote pressure release valve bar.

It is nearly 1/2nd that the utility model reduces the part number than Milky Way water-saving valve, and installing space is contracted to 1/4th, and minimum operating pressure is by 0.5kg/cm ²Reduce to 0.3kg/cm ², and sealing is reliable, does not reveal during low pressure, saves lot of materials, and weight only is 0.45 kilogram.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof:

Fig. 1 is the structural representation of the utility model embodiment 1.

Fig. 2 is the structural representation of the utility model embodiment 2.

With reference to Fig. 1, embodiment 1 is a straight flushing valve, and it is there to be G1, and " big nut 1 of gas thread is connected on the inlet pipeline, and housing 4 other ends are connected on the closet inlet tube with gas thread G1.Every locating the arc diffusion sealing awl 10 that bonds, there is regularly cylinder 2 of shunting the water inlet in the valve body 4; 6 one-tenth hollow tubulars of piston, bottom have sealing mat 9 to be pressed on the sealing awl 10, and the top slot part has leather cup 5, and piston 6 and shunting timing cylinder 2 bore seal are isolated.Shunting regularly cylinder 2 tops becomes coniform, and there is damping hole in central authorities.Shunting regularly cylinder 2 interior top of chamber has protuberance, entangles spring 3, and spring 3 lower ends withstand on the pressure release valve 7, and the sealing the margin of pressure release valve 7 is pressed on the sealing mat 8, and sealing mat 8 is contained on the step surface of piston 6 inner chambers.Pressure release valve 7 bar portions stretch out from piston 6 lower ends, pass sealing awl 10 and stretch to delivery port.Button 12 is contained in the convex place of housing 4 walls, and its bar portion is with spring 13 and pad 11, blocks at convex external application pin 14, and the tail end of bar portion can push up the valve bar of pressure release valve 7.The uniform air vent in several places 15 is arranged on housing 4 walls.

During work, water inlet is full of piston 6 and sealing bores 10 with top, and flows into pressure release valve 7 above spaces from the damping hole of shunting regularly cylinder 2.When touching the button 12 with hand, button spindle pushes pressure release valve bar, and sealing place of pressure release valve 7 is opened, then the current in the shunting timing cylinder 2 get off, and instantaneous negative pressure appears in pressure release valve 7 epicoeles, under the import hydraulic action, piston 6 is upwardly opened, and then feed water flow flows down from sealing awl 10.When lifting hand, button 12 sets back, and water inlet flows into pressure release valve 7 tops from damping hole gradually, piston 6 is pushed back original position, the current automatic cut-off.Pinning time of button 12, long then washing time is long, short then washing time shortening of the time of pinning, thus saved water.

With reference to Fig. 2, embodiment 2, and this is a horizontal general formula valve.27 one-tenth three way types of valve body, side have the G1/2 gas thread to insert water pipe, and the vertical channel top of valve body 27 covers 29, and rubber cushion 28 screws tight on valve body 27.Conical water nozzle is arranged at the bottom of valve body 27.Spring 30 is enclosed within the prominence of covering below 29, and the lower end is pressed on the pressure release valve 18, and the sealing edge of pressure release valve 18 is pressed on the packing ring 17, and packing ring 17 places piston 15 inner chamber step places.Piston 15 lower ends are with sealing mat 19 and sealing awl 20 line contact sealings, and upper end and valve body 27 are slidingly matched, and seal with leather cup 16.Piston 15 sidewalls simultaneously have the damping hole 26 of inclination to water inlet.Press button is contained in valve body lower portion, is made of button 22, spring 23, packing ring 24, pin 25.Valve body wall is provided with air vent 21.

The present embodiment operating principle is identical with embodiment 1.It is fit to do water tap and uses.

Claims

1, a kind of self-closing flushing valve, it is made up of valve body, piston component, pressure release valve and press button, it is characterized in that: its valve body 4 is straights, to the outside air vent 15 is arranged, there is arc diffusion sealing awl 10 at the inner chamber middle part, and water inlet place has regularly cylinder 2 of a shunting, and there is damping hole in its central authorities; Its piston component comprises hollow piston 6 and is contained in sealing mat 9 and leather cup 5 on the piston 6; Its pressure release valve comprises: be contained in the pressure release valve 7 and the sealing mat 8 of piston 6 inner chambers, be pressed in the spring 3 on the pressure release valve 7; Its press button is installed in valve body 4 lower sidewall, comprises button 12, is enclosed within spring 13, the packing ring 11 on the button 12 and is stuck in pin 14 on button 12 bars.

2, self-closing flush valve according to claim 1, the valve body that it is characterized in that it can also be threeway shape, the lateral inflow mouth has gas thread, vertical section top covers 29, the bottom has can work as the conical delivery port that water tap is used, its piston component top directly cooperates with valve body, and the damping hole 26 towards water inlet is arranged on the piston 15.