CN2422491Y

CN2422491Y - Diaphragm pipe controlled stop valve

Info

Publication number: CN2422491Y
Application number: CN 00224550
Authority: CN
Inventors: 张磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-07
Filing date: 2000-04-07
Publication date: 2001-03-07
Anticipated expiration: 2010-04-07

Abstract

The utility model relates to a diaphragm pipe controlled stop valve. A hollow cavity of a valve body of the utility model is divided into an upper cavity, an instant control cavity, a lower cavity, and an instant working cavity. A diaphragm is fixedly connected with a press plug which is matched with a corresponding hole on the inner wall of the working cavity in a pressing way to form a gate flow hole; the gate flow hole can divide the working cavity into an inflow cavity and an outflow cavity, and the inflow cavity and the outflow cavity are communicated with the control cavity via a subsidiary pipe and a subsidiary valve. The utility model has the advantages that the structure is simple, the size is small, the operation is convenient, the labor can be saved, a press plug rod can not be extended outside a valve body, a sealing ring wearing part can be omitted, the leakage can not occur, a sealing at a press plug does not has the friction of a knot, and the damage is not easy.

Description

Diaphragm type management and control stop valve

The utility model relates to a kind of fluid pipe valve, particularly stop valve.

Existing stop valve, its structure is referring to accompanying drawing 1, and the endoceliac tamponade D of its valve connects the lifting of stopper rod B mat scyewed joint through stopper rod B with rotatable handle A outside the valve body, stopper rod B and the close circle of valve body wall mat C sealing, the endoceliac lock discharge orifice of tamponade D and valve mouth mat sealing gasket E compresses lock stream.Its worn-out disease is a very effort of rotatable handle A open or close valve time operation, and close circle C is fragile, often needs to change, and seals bad and cause seepage, and it is also fragile that the sealing gasket E at tamponade D place turns round pressure owing to tamponade D rotates.

The purpose of this utility model is to design a kind of stop valve, removes the operating grip of rotation on the structure, increases auxilliary valve, utilizes the switching of managing the pressure-controlled stop valve, make it rapid operation, convenient, therefore improved sealing configuration simultaneously, not fragile, prevent seepage, overcome the worn-out sick of existing stop valve.

Technical solution of the present utility model is a diaphragm type management and control stop valve, and its body cavity is divided into epicoele, is control chamber by the elasticity diaphragm, with cavity of resorption, be active chamber; Be fixed on the corresponding aperture compression fit on tamponade and the active chamber inwall on the film of the horizontal chamber of elasticity, form the lock head piece, the lock head piece is divided into active chamber the influent stream chamber and goes out to flow the chamber, its influent stream chamber, goes out to flow the chamber and connects via auxilliary pipe and auxilliary valve respectively separately and be communicated to control chamber.

Description of drawings is as follows:

Fig. 1 is a prior art stop valve structure schematic representation

Fig. 2 is the utility model diaphragm type management and control stop valve structure schematic representation

The utility model further specifies as follows in conjunction with specific embodiments referring to accompanying drawing:

Diaphragm type management and control stop valve, its structure are referring to accompanying drawing 2, and body cavity is divided into epicoele and cavity of resorption by elasticity diaphragm [7], and epicoele is control chamber [13], and cavity of resorption is active chamber [14]; By corresponding aperture [12] compression fit on the tamponade [8] and the active chamber inwall that are fixed on the elasticity diaphragm [7].Form the lock head piece, the lock head piece with active chamber [14] every being divided into influent stream chamber [11] and going out to flow chamber [10], elastic sealing gasket [9] the sealing lock that tamponade [8] aperture [12] mat corresponding with it is installed on the aperture [12] flows: influent stream chamber [11] are communicated to control chamber [13] via auxilliary pipe [1] and auxilliary valve [2] connection, go out to flow chamber [10] and are communicated to control chamber [13] via auxilliary pipe [6] and auxilliary valve [5] connection; Be installed in the guide hole [3] of tamponade bar [4] sliding sleeve on valve body control chamber [13] wall that tamponade [8] mat on the elasticity diaphragm [7] connects firmly on it.Straight skidding leads by this.

The auxilliary valve [5] that connect to be communicated with auxilliary valve [2], the control chamber [13] in control chamber [13] and influent stream chamber [11] and to go out to flow chamber [10] is ball valve or solenoid valve, or other flow control valves.

Working principle of the present utility model is: utilize the hydrodynamic pressure that enters body cavity, control the open and close of stop valve by handling auxilliary valve [2] and [5].When open auxilliary valve [2], when closing auxilliary valve [5], liquid stream enters control chamber [13] from influent stream chamber [11] via auxilliary pipe [1] and auxilliary valve [2], depress elasticity diaphragm [7], promote tamponade [8] and move down, compress aperture [12] and realize lock stream, stop valve is closed: when closing auxilliary valve [2], when opening auxilliary valve [5], enter the hydraulic coupling of the liquid stream in influent stream chamber [11], upwards jack-up tamponade [8] is opened stop valve.

The utility model has the advantage of auxiliary pipe path is set, utilize hydraulic pressure to handle control with auxiliary valve The switching of stop valve, therefore easy to operate, dexterous laborsaving, and stopper rod do not stretch out outside the valve body, thereby not Need the stopper rod sealing ring, ne-leakage. Valve arrangement is simple, and volume is little, the sealing gasket of simultaneously tamponade lock head piece Only be stressed, not rubbed by turn-knob, thus not fragile.

Claims

1, diaphragm type management and control stop valve, its body cavity be divided into epicoele, be control chamber by the elasticity diaphragm, with cavity of resorption be active chamber; Be fixed on corresponding aperture compression fit on tamponade and the active chamber inwall on the elasticity diaphragm, form the lock head piece, the lock head piece is divided into active chamber the influent stream chamber and goes out to flow the chamber, it is characterized in that its influent stream chamber, goes out to flow the chamber and connect via auxilliary pipe and auxilliary valve respectively separately and be communicated to control chamber.

2, diaphragm type management and control stop valve according to claim 1 is characterized in that its auxilliary valve is a ball valve.

3, diaphragm type management and control stop valve according to claim 1 is characterized in that its auxilliary valve is a solenoid valve.