CN2835718Y

CN2835718Y - Quick cut-off valve

Info

Publication number: CN2835718Y
Application number: CN 200520013939
Authority: CN
Inventors: 董汉翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-07
Filing date: 2005-08-07
Publication date: 2006-11-08
Anticipated expiration: 2015-08-07

Abstract

The utility model discloses a quick cutting-off valve, wherein the interior of a center hole of a valve body is provided with a valve rod; the valve rod is fixed by a connecting supporting frame and an upper supporting frame; the upper side of the valve rod is connected with a handwheel, the lower end of the valve rod is welded into circular valve flaps in a piling-up mode through using hard alloy (STL), and the valve flaps are processed in a precise mode to form a line sealed surface which is matched with a sealed surface of the central hole arranged at the middle part of the valve body; a connecting valve rod, a handle assembly, springs and a locating sleeve are arranged between the upper end of the valve rod and the upper supporting frame; the front end of the handle assembly is sheathed with the connecting valve rod; the middle part of the handle assembly is provided with a movable handle, a handle sleeve and male pins; a bottom opening of the valve body is sealed by a plugging cap. The utility model has the advantage that the valve rod thread rotating elevation has the improvement that with using a lever and the springs, only depressing the handle for the elevation, a valve door can be completely opened in lightning speed; with regulating flow rate, the valve can be locked at the position of a half open lock hole or a full open lock hole through the male pins; the male pins and the springs are pulled out so as to ensure powerful closing force to close; the utility model has the advantages of convenient operation and simple structure.

Description

Repid cut-off valve

Technical field

The utility model relates to a kind of pipeline repid cut-off valve, especially circular flap in valve rod lower end and upper end spring, handle assembly fast shut-off device.

Background technique

At present, what use on the known pipeline all is that exhibition gate valve, stop valve are gone up in the handwheel rotation, this gate valve, stop valve rise and descend and all utilize threaded stem to cooperate copper nut slowly to rotate realization by handwheel, operator's labor intensity is big, speed is slow, run into than the valve of large mouth warp and also will help by other instrument, operation is trouble very.

Be provided with groove in the middle of its Gate-valve sealing seat, the shortcoming of its groove maximum is to be easy to pile up foreign material, and closing gate is unreal, causes pipeline gate valve seepage, brings very big economic loss to enterprise.

Summary of the invention

In order to overcome existing gate valve, stop valve all is to go up the sealing of exhibition gate unreal, easy seepage, rising or the big technical deficiency of step-down operation labor intensity, the utility model provides a kind of repid cut-off valve, this repid cut-off valve, not only adopt circular flap linear sealing, and the valve rod lifting utilizes spring, tiller, to be exceedingly fast speed complete opening and closing, operator's labor intensity alleviates greatly, and switch is lightly flexible.

The purpose of this utility model provides a kind of repid cut-off valve, adopt the circular flap of cemented carbide (STL) built-up welding in the valve rod lower end, become linear sealing face through precision machining, be complementary with valve body middle part center hole sealing surface, valve rod is to put in from valve body blocking cap mouth, by stretching out in the valve body center hole, valve rod is by connecting support, upper bracket is fixed, the top connects handwheel, be provided with between valve rod upper end and the upper bracket and be connected valve rod, handle assembly, spring, setting sleeve, its handle assembly front end entangles the connection valve rod, the middle part is provided with flexible handle, dispose the gland cover between valve body and the valve rod below the taper knob, its cover clamp, filler, setting sleeve, mouth is sealed with blocking cap at the bottom of the valve body.

The beneficial effects of the utility model are the threaded stem rotation and lifting to be improved to utilize arm spring, lifting needs only screw down valve door handle gate promptly with the speed complete opening that is exceedingly fast, regulating flow utilizes pin valve can be fixed on half-open lockhole or standard-sized sheet lockhole position, pull out the powerful power of closing of pin spring assurance and close, easy to operate, simple in structure.

Description of drawings:

Below in conjunction with accompanying drawing and example the utility model is further specified:

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

Valve body in the drawings, 1; 2, valve rod; 3, setting sleeve; 4, filler; 5, flat nut; 6, gland cover; 7, cover clamp; 8, lug bolt: 9, nut; 10, setting sleeve; 11, stud bolt; 12, nut; 13, connect support; 14, spring; 15, connect valve rod; 16, lateral pin; 17, upper bracket; 18, handwheel; 19, handle assembly; 20, blocking cap; 21, flap; 22, half-open pin-and-hole; 23, standard-sized sheet pin-and-hole; 24, pin; 25, taper knob; 26, handle.

Specific embodiment:

In Fig. 1, the circular flap of valve rod (2) lower end built-up welding is processed into sealing surface (21) and is complementary with valve body (1) middle part center hole sealing surface, valve rod (2) puts in by valve body (1) center hole from valve body (1) bottom blocking cap (20) mouth and stretches out, valve rod (2) is by connecting support (13), upper bracket (17) is fixing, upper bracket (17) one sides are provided with lateral pin (16) and fixed handle assembly (19) lateral pin hole, the opposite side top is provided with half-open pin-and-hole (22), standard-sized sheet pin-and-hole (23), the regulating valve flow, valve rod (2) top connects handwheel (18), valve rod (2) and upper bracket (17), connect support (13), be provided with between valve body (1) top and connect valve rod (15), handle assembly (19), spring (14), setting sleeve (10), cover clamp (7) gland cover (6), filler (4), setting sleeve (3), valve body (1) end mouth is sealed with blocking cap (20).

Its handle assembly (19) connects with flexible handle (26), configuration activities taper knob (25), depress handle (26) during use, by valve rod (2) flap (21), valve is promptly finished unlatching with the speed of being exceedingly fast, and pin (24) inserts lock adjustment flow in half-open pin-and-hole (22) or the standard-sized sheet pin-and-hole (23), guarantees that the powerful power of closing closes as long as pull out pin (24) spring (14) when closing, handwheel (18) only plays the role of positioning, and can not open or close on handwheel (18).

Claims

1, a kind of repid cut-off valve, in the valve body center hole, allocate valve rod into, valve rod is fixed by connection support, upper bracket, the top connects handwheel, it is characterized in that adopting the circular flap of hard alloy overlay welding in the valve rod lower end, is complementary with valve body middle part center hole sealing surface, be provided with between valve rod upper end and the upper bracket and be connected valve rod, handle assembly, spring, setting sleeve, its handle assembly front end entangles the connection valve rod, and the middle part is provided with flexible handle, taper knob, pin.

2, repid cut-off valve according to claim 1 is characterized in that upper bracket one side is provided with lateral pin and fixed handle assembly lateral pin hole, and the opposite side top is provided with half-open pin-and-hole, standard-sized sheet pin-and-hole.

3, repid cut-off valve according to claim 1, it is characterized in that valve body at the bottom of mouth seal with blocking cap.