CN201100414Y - Controlled automatic switch valve - Google Patents

Abstract

The utility model discloses a pipe automatic switch valve which is used on the conduit, comprising an upper and a lower valve bodies and an inlet and an outlet pipes, wherein the upper valve body is a cylinder shape and communicated with the inlet pipe, a closed opening below the upper valve body is communicated with the outlet pipe, and valve clack is disposed in the upper valve body; and a piston is arranged inside the lower valve body, a piston shaft on the piston is connected with the valve clack inside the upper valve body, and the lower valve body is communicated with the outlet pipe. The opening and the closing of the switch valve automatically open and close through the starting and the stopping of a pressure apparatus. Since employing a steel tube to combine and weld, the pipe automatic switch valve can achieve manufacturing the quantity ordered and doesn't overstock, thereby not occupying a plurality of capital. The pipe automatic switch valve has high pressure resistance, simple structure, convenient examining and repairing, low cost, and easy manufacturing and assembling.

Description

The control automatic switch valve

One, technical field

The utility model relates to the automatic switch valve that uses on a kind of pipeline.

Two, background technique

The present automatic switch valve that uses is generally cast iron and makes, and its valve body and intake-outlet etc. all are the one-step casting moulding.The manufacturing of this valve needs operations such as molding, casting, turning, assembling, complex process, and need disposable casting polytypic, most automatic on-off valve body and accessory of measuring, the occupied fund amount is huge.

Three, summary of the invention

The purpose of this utility model provides a kind of energy recloser, makes simply, does not need to take the automatic switch valve of substantial contribution.

The technological scheme that the utility model system adopts is: the control automatic switch valve comprises upper and lower valve body and inlet/outlet pipe, upper valve body is cylindric, its sidewall has the opening that communicates with inlet tube, close mouth below the upper valve body communicates with outer pipe, there is flap at the close mouth place, and the seal ring of assembling is arranged on the flap; Stage clip is arranged on flap, and the stage clip upper end withstands on the bonnet.Be provided with valve body down cylindraceous below the upper valve body, piston is arranged in the following valve body, be assembled with closure member and closed loop on the piston, closure member forms dynamic fit with the inwall of following valve body; Flap in piston shaft above the piston and the upper valve body is connected, and the close mouth on following valve body top communicates with outer pipe, below descending valve body bottom flange is arranged.During work, high-voltage tube has pressure when pressurized equipment pressurizes, piston is moved upward by the effect of high pressure, promoting flap by piston shaft moves upward, with valve open, closure member, the close mouth of closed loop in following valve body produce the packing effect simultaneously, and at this moment liquid enters in the upper valve body by inlet tube, in the interlayer that valve body and upper valve body form under flowing into through the close mouth in the upper valve body again, flow out through outer pipe.When pressurized equipment stops, high-voltage tube pressure reduces, flap moves downward owing to the thrust that is pushed away spring and inlet ductwork pressure inertial force, flap valve shaft and piston body action of gravity, produces the packing effect with valve closing by the close mouth in flap seal ring and the upper valve body, cuts off flow of fluid.

The utility model has the advantages that: 1, the keying of control automatic switch valve is passed through the pressurized equipment start and stop and recloser.

2, owing to adopted steel pipe combination weldering system to form, can reach and order goods what what make, overstocked commodities not, thus do not take substantial contribution.

3, withstand voltage height, simple in structure, maintenance is convenient, and is with low cost, makes easily and installs.

Four, description of drawings

Accompanying drawing is a structural representation of the present utility model.

Five, embodiment

The below of following valve body 1 is provided with bottom flange 12, and bottom flange 12 centers are provided with high-voltage tube 14, valve body drain pipe 16 is set in valve body 1 side down, and bonnet 13 is established in upper valve body 2 tops, and bonnet 13 is provided with upper valve body drain pipe 15.Be equipped with below the bonnet and push away spring 11, pushing away has flap 9 below the spring 11, assembling seal ring 10 on the flap 9.Upper valve body 2 sides have opening to communicate with inlet tube 17, communicate with outer pipe 18 through close mouth 8 below.Be connected with down valve body 1 below the upper valve body 2, in the following valve body 1 piston 3 arranged, the closure member 4 and the closed loop 5 of assembling arranged on the piston 3, piston shaft 7 tops above the piston link to each other with flap 9, and following valve body 1 communicates with outer pipe 18 through top close mouth 6.Upper valve body 2, down valve body 1 is made by the steel pipe welding respectively, and inside and outside continuous formation interlayer, inlet tube 17, outer pipe 18 respectively with upper valve body 2 and following 1 vertical linking to each other of valve body.Following valve body 1 is welded with upper valve body 2, and closed loop 8 is welded with upper valve body 2, and close mouth 6 is welded with following valve body 1.

Claims (3)

1, a kind of control automatic switch valve, comprise upper and lower valve body and inlet/outlet pipe, it is characterized in that: upper valve body (2) is for cylindric, its sidewall has the opening that communicates with inlet tube (17), close mouth (8) below the upper valve body (2) communicates with outer pipe (18), close mouth (8) has been located flap (9), and the seal ring (10) of assembling is arranged on the flap (9); Stage clip (11) is arranged above the flap (9), and stage clip (11) upper end withstands on the bonnet (13); Valve body (1) down cylindraceous is arranged below the upper valve body (2), piston (3) is arranged in the following valve body (1), be assembled with closure member (4) and closed loop (5) on the piston (3), closure member (4) forms dynamic fit with following valve body (1) inwall; The interior flap (9) of piston shaft (7) above the piston (3) and upper valve body (2) is connected, and the close mouth (6) on following valve body (1) top communicates with outer pipe (18), bottom flange (12) is arranged below the following valve body (1).

2, control automatic switch valve according to claim 1 is characterized in that: bonnet (13) is provided with upper valve body drain pipe (15), and valve body drain pipe (16) is set in following valve body (1) side, and bottom flange (12) center is provided with high-voltage tube (14).

3, according to the described control automatic switch valve of claim 1, it is characterized in that: upper valve body (2), following valve body (1) are made by the steel pipe welding, and inside and outside continuous formation interlayer, inlet tube (17), outer pipe (18) respectively with upper valve body (2) and vertical linking to each other of following valve body (1).