CN200946667Y

CN200946667Y - Intelligent water meter control valve

Info

Publication number: CN200946667Y
Application number: CN 200620200681
Authority: CN
Inventors: 刘庆荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-08
Filing date: 2006-08-08
Publication date: 2007-09-12
Anticipated expiration: 2016-08-08

Abstract

The utility model relates to an intelligent water meter control valve in which a valve both is in tight connection with a valve cover, a film clamped by the valve body and the valve cover divides the space in the valve into two chamber, a valve seat is put on the valve port in the valve body, the lower part of the valve stem penetrates the centre of the valve seat, a vale core wraps the middle part of the valve stem, the upper part of the valve stem penetrates the film and is fixed by an upper press plate and a screw nut, a ring with groove is provided at the bottom of the valve core where the valve core is in contact with the valve seat, a rubber sealing ring is embedded in the ring with groove, a protruding stopper as well as an under press plate which presses the rubber sealing ring is provided at the external circumference of the valve stem at the position of the valve seat, a guide hole which communicates the upper chamber above the film with the lower chamber under the film is provided at the centre of the valve stem, a spring is provided in the upper chamber, an opening is provided on the valve cover to be communicated with a bypass pipe by two electric through valves, and the bypass pipe is communicated with one side of the outlet of the valve body by a ball valve. The utility model eliminates the problem of that the internal water pressure discharging is prone to causing water accumulation outside of the valve gate, removes the deficit that the guide pipe is prone to jamming and prevents the noise caused by the water hammer. The utility model can be used in a flow measuring system such as a water gage or a gas gage.

Description

The intellectual water meter control valve

(1) technical field

The utility model relates to a kind of valve, particularly a kind of water meter control valve.

(2) background technique

Existing valve has manually-operated gate or automatically controlled opening/shutting valve, traditional water meter control valve generally adopts and manually controls keying, even water conservancy is controlled the valve of keying automatically, also must adopt manual reverse of direction to open and close pipeline, its structure is more complicated often, the operation more complicated, existing water meter control valve is installed three-way diverter valve and external honeycomb duct at the valve bonnet top, three-way diverter valve and external honeycomb duct not only leak easily, also are subjected to artificial destruction easily, external honeycomb duct is after the collision extruding, usually cause negotiability not enough, even cause the ftercompction deficiency, valve can not normally be closed, cause the interior hydraulic pressure of valve to be drained and cause ponding in the valve outside, external honeycomb duct also stops up easily, moves gently inadequately, closes tight inadequately, moreover, also can be owing to water hammer produces vibration noise.

(3) model utility content

The purpose of this utility model provides a kind of intelligent water meter control valve, solve the problem that existing water meter control valve structure is too complicated, leak, be subject to artificial destruction easily, solve the problem that existing water meter control valve negotiability causes ftercompction deficiency, valve normally not to close inadequately, easily; And hydraulic pressure is drained in the valve outside in the solution valve, easily causes the problem of ponding; Solve external honeycomb duct simultaneously and easily stop up, move mild inadequately, as to close inadequately tightly, easily produce water hammer vibration noise problem.

The purpose of this utility model is achieved in that this intellectual water meter control valve, valve body and valve bonnet are fastenedly connected, folded between the two diaphragm will be divided into dual cavity in the valve, there are water intake and water outlet in the both sides of valve body, are equipped with valve seat on the valve port in the valve body, and stem lower portion is passed the center of valve seat, the valve rod middle part is with spool, valve rod upper end with pass diaphragm, and fix by top board and nut, it is characterized in that:

Spool is the I-shaped dish type, its bottom is fixed with O-ring seal, there is the pod apertures of a connection diaphragm top chamber and below chamber at the valve rod center, in the chamber of top a spring is arranged, be connected between valve bonnet and the top board, a perforate is arranged on the valve bonnet, by a wherein end that silk is connected electric two-way valve, the electric two-way valve the other end connects bypass tube, and the other end of bypass tube is communicated with valve body water outlet one side through ball valve.

One scrobicular ring can be arranged at the bottom of above-mentioned spool, and scrobicular ring is embedded with O-ring seal, and the outer shroud of valve rod in the valve seat position has a protruding retaining, and protruding blocking is with a base pressure plate, and the base pressure plate tightly suppresses above-mentioned O-ring seal.

The utility model is compared the beneficial effect that has with existing conventional art: the utility model adopts electric two-way valve to finish the opening and closing of valve with hydraulic coupling, and the big negotiability of electric two-way valve has overcome the susceptible to plugging disadvantage of bypass tube.

The design of valve rod heart pod apertures has overcome the ftercompction deficiency that outside installation honeycomb duct leaked easily, suffered easily that artificial destruction, negotiability cause inadequately, the defective that causes valve normally not close.

Hydraulic pressure discharging in the chamber of top is directly drained to water outlet by bypass tube, and it is externally drained at valve body to have overcome three-way diverter valve, causes chamber interior hydraulic pressure in top to drain the shortcoming that causes ponding in the valve outside.

Embedded seal ring cooperates with the protruding base pressure plate of blocking of valve rod, makes the sealing of valve seat tighter, and the structure of sealing STATEMENT OF FEDERALLY SPONSORED makes the valve operation more reliable.Dual cavity and sealing interlock structure thereof have operation mild, close tight advantage, prevented the vibration noise that water hammer produces effectively.Applicable to fluid metering systems such as water meter, gas meters.

(4) description of drawings

Fig. 1 is a structural representation of the present utility model.

Among the figure: 1-electric two-way valve, 2-are to silk, 3-valve bonnet, 4-spring, 5-nut, 6-top board, 7-diaphragm, 8-valve rod, 9-spool, 10-water intake, 11-O-ring seal, 12-scrobicular ring, 13-base pressure plate, 14-valve seat, 15-valve body, 16-bypass tube, 17-ball valve, 18-water outlet, the protruding retaining of 19-, 20-pod apertures.

(5) embodiment

Embodiment is referring to Fig. 1, the intellectual water meter control valve that the utility model is related, valve body 15 is fastenedly connected with valve bonnet 3, folded between the two diaphragm 7 will be divided into dual cavity in the valve, there are water intake 10 and water outlet 18 in the both sides of valve body 15, is equipped with valve seat 14 on the valve port in the valve body, the center of valve seat is passed in valve rod 8 bottoms, the valve rod middle part is with spool 9, and diaphragm 7 is passed in the valve rod upper end, and fixing by top board 6 and nut 5.

Spool 9 is the I-shaped dish type, and a scrobicular ring 12 is arranged at the bottom that contacts with valve seat 14, and scrobicular ring 12 is embedded with O-ring seal 11, and the outer shroud of valve rod 8 in valve seat 14 positions has a protruding retaining 19, is with a base pressure plate 13 on the protruding retaining 19, and base pressure plate 13 tightly suppresses O-ring seal 11.

There is the pod apertures 20 of a connection diaphragm top chamber and below chamber at valve rod 8 centers, in the chamber of top a spring 4 is arranged, be connected between valve bonnet 3 and the top board 6, have a hole on the valve bonnet 3, by an end that silk 2 is connected electric two-way valve 1, the other end of electric two-way valve 1 is communicated with bypass tube 16, and the other end of bypass tube 16 is communicated with valve body water outlet 18 through ball valve 17.

Working principle of the present utility model: this valve is formed the sealing STATEMENT OF FEDERALLY SPONSORED by valve rod 8, spool 9, base pressure plate 13, top board 6, nut 5, water pressure difference with import and export is a power, top chamber pressure with electric two-way valve 1 control diaphragm 7, and operation sealing STATEMENT OF FEDERALLY SPONSORED, finish the unlatching of valve or close by hydraulic coupling.

The electric two-way valve 1 of pressure by opening of water in diaphragm 7 top chambers, when being excreted to behind atmosphere or the valve low pressure area by bypass tube 16 and ball valve 17, the pressure that acts on sealing STATEMENT OF FEDERALLY SPONSORED bottom and diaphragm 7 belows upwards pushes away the valve seal STATEMENT OF FEDERALLY SPONSORED, is the state of complete opening up to the valve port place.

When the import water pressure was in the pod apertures 20 diversed top chambers to diaphragm at valve rod center, because electric two-way valve 1 is closed generation pressure, the sealing STATEMENT OF FEDERALLY SPONSORED was pressed down, and is complete closing state up to the valve port place.

Claims

1. intellectual water meter control valve, valve body and valve bonnet are fastenedly connected, folded between the two diaphragm will be divided into dual cavity in the valve, there are water intake and water outlet in the both sides of valve body, are equipped with valve seat on the valve port in the valve body, and stem lower portion is passed the center of valve seat, the valve rod middle part is with spool, valve rod upper end with pass diaphragm, and fix by top board and nut, it is characterized in that:

2. intellectual water meter control valve according to claim 1, it is characterized in that: a scrobicular ring is arranged at the bottom of above-mentioned spool, and scrobicular ring is embedded with O-ring seal, and the outer shroud of valve rod in the valve seat position has a protruding retaining, protruding blocking is with a base pressure plate, and the base pressure plate tightly suppresses above-mentioned O-ring seal.