CN210240718U

CN210240718U - Flange gate valve

Info

Publication number: CN210240718U
Application number: CN201920579505.6U
Authority: CN
Inventors: Xuanchen Yang; 杨选辰; Daoliang Zhou; 周道亮; Xianzhang Yang; 杨贤璋; Jingcheng Yang; 杨景程; Zengran Zhao; 赵曾然; Junhao Wang; 王俊豪
Original assignee: Diantai Valve Co ltd
Current assignee: Zhejiang Diantai valve industry Co.,Ltd.
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-04-03
Anticipated expiration: 2029-04-25

Abstract

The utility model belongs to the technical field of the valve technique and specifically relates to a flange gate valve, which comprises a valve body, equal fixedly connected with flange compresses tightly the disk seat on the valve body both sides, the valve body top is connected with the valve gap, run through in the valve gap and be equipped with the valve rod, and be located coaxial fixedly connected with hand wheel on the outside valve rod of valve gap, the coaxial first cavity that is equipped with in the valve body, the one end that the hand wheel was kept away from to the valve rod extends to in the first cavity, the intercommunication is equipped with the second cavity on first cavity top one side, and the slope sets up between second cavity and the first cavity, the intercommunication is equipped with the third cavity on first cavity bottom one side, the slope sets up between third cavity and the first cavity, and parallel arrangement between third cavity and the second cavity, be equipped with first through-hole and second. The utility model discloses with the third cavity and the second cavity that the inside slope of valve body set up, can effectually play the effect of buffering, protected the valve and prolonged the life of valve.

Description

Flange gate valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a flanged gate valve.

Background

Flange gate valve is the direction of motion and the fluid direction looks vertically valve of valve plate, the valve plate is along with the valve rod and is made elevating movement, be equipped with trapezoidal thread on the valve rod pole usually, through the nut on valve top and the guide slot on the valve body, become linear motion with rotary motion, become operating thrust with operating torque promptly, at present, the flange gate valve on the market, the valve body structure is not enough by force, and the structure of inside rivers passageway is reasonable inadequately, it is not good with valve body cooperation effect, the leakproofness is not enough, can produce the phenomenon of leaking, and the life-span of using is shorter. To this end, we propose a flanged gate valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a flange gate valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

designing a flanged gate valve, comprising a valve body, wherein both sides of the valve body are fixedly connected with flange pressing valve seats, the top of the valve body is connected with a valve cover, a valve rod penetrates through the valve cover, the top of the valve rod extends to the outside of the valve cover, a hand wheel is coaxially and fixedly connected on the valve rod positioned outside the valve cover, a first cavity is coaxially arranged in the valve body, one end of the valve rod, which is far away from the hand wheel, extends into the first cavity, a valve clack is fixedly connected on the valve rod positioned in the first cavity, a second cavity is communicated on one side of the top of the first cavity, the second cavity and the first cavity are obliquely arranged, the inclination angle between the first cavity and the second cavity is more than 45 degrees and less than 90 degrees, a third cavity is communicated on one side of the bottom of the first cavity, the third cavity and the first cavity are obliquely arranged, and the third cavity and the second cavity are arranged in parallel, and the second through hole and the first through hole are respectively communicated with the third cavity and the first cavity.

Preferably, the valve cover and the valve body are fixedly connected through a plurality of middle bolts, and a middle gasket is arranged between the valve cover and the valve body.

Preferably, a filler is arranged between the inner wall of the top of the valve cover and the valve rod, a filler pressing sleeve is arranged on the top of the filler, the filler pressing sleeve is coaxially connected to the outside of the valve rod, the top of the filler pressing sleeve is fixedly connected to a filler pressing plate, the filler pressing plate is connected with the valve cover through an eyelet bolt, and the top of the eyelet bolt is connected with a first nut.

Preferably, the top of the packing pressing plate is fixedly connected with a valve rod nut, and the valve rod nut is coaxially arranged on the outer wall of the valve rod.

Preferably, one end of the valve rod, which is far away from the valve clack, is connected with a hand wheel through a locking nut.

The utility model provides a pair of flanged gate valve, beneficial effect lies in: the utility model discloses with the third cavity and the second cavity that the inside slope of valve body set up, can effectually play the effect of buffering for the valve can play fine cushioning effect to the medium of inside when closing, has improved the efficiency of closing, and has protected the valve, has prolonged the life of valve.

Drawings

Fig. 1 is the utility model provides a structural schematic diagram of a flanged gate valve.

In the figure: the valve comprises a valve body 1, a valve clack 2, a valve rod 3, a middle gasket 4, a valve cover 5, a middle bolt 6, a packing 7, a packing pressing sleeve 8, a packing pressing plate 9, a first cavity 10, an eyelet bolt 11, a first nut 12, a valve rod nut 13, a hand wheel 14, a locking nut 15, a flange pressing valve seat 16, a first through hole 17, a second cavity 18, a second through hole 19 and a third cavity 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, a flanged gate valve, including valve body 1, equal fixedly connected with flange compresses tightly disk seat 16 on 1 both sides of valve body, 1 top of valve body is connected with valve gap 5, carry out fixed connection through a plurality of middle part bolts 6 between valve gap 5 and the valve body 1, and be equipped with middle part gasket 4 between valve gap 5 and the valve body 1, the gasket 4 of setting can improve the leakproofness of being connected between valve gap 5 and the valve body 1, simultaneously under gasket 4 and middle part bolt 6's combined action, can make between valve gap 5 and the valve body 1 be connected more stable.

Be equipped with filler 7 between 5 top inner walls of valve gap and the valve rod 3, and the filler 7 top is equipped with the filler and presses cover 8, and the filler presses cover 8 coaxial coupling in the valve rod 3 outside, 8 top fixed connection of filler pressure cover is on packing clamp plate 9, packing clamp plate 9 is connected through swing bolt 11 and valve gap 5, and swing bolt 11 top is connected with

first nut

12, 9 top fixed connection of packing clamp plate has valve nut 13, valve nut 13 is coaxial to be set up on the outer wall of valve rod 3, the filler 7 that sets up can improve the holistic leakproofness of device, and pack and press cover 8, under the combined action of packing clamp plate 9, make filler 7 can be more stable fill between valve rod 3 and 5 top inner walls of valve gap, further improvement holistic leakproofness, and then can prolong the life-span of device use.

Run through being equipped with valve rod 3 in the valve gap 5, the top of valve rod 3 extends to the valve gap 5 outside, and be located coaxial fixedly connected with hand wheel 14 on the valve rod 3 of valve gap 5 outside, the one end that valve clack 2 was kept away from to valve rod 3 is connected through lock nut 15 and hand wheel 14, the coaxial first cavity 10 that is equipped with in the valve body 1, the one end that hand wheel 14 was kept away from to valve rod 3 extends to in the first cavity 10, and be located fixed connection has valve clack 2 on the valve rod 3 in the first cavity 10, the diameter of valve clack 2 and the diameter phase-match of first cavity 10, and valve clack 2 highly be greater than the diameter of first cavity 10 and second cavity 18, guarantee that valve clack 2 can carry out quick sealing to first cavity 10 and second cavity 18, make the device can realize quick regulation.

A second cavity 18 is communicated with one side of the top of the first cavity 10, the second cavity 18 and the first cavity 10 are obliquely arranged, the inclination angle between the first cavity 10 and the second cavity 18 is more than 45 degrees and less than 90 degrees, a third cavity 20 is communicated with one side of the bottom of the first cavity 10, the third cavity 20 and the first cavity 10 are obliquely arranged, the third cavity 20 and the second cavity 18 are arranged in parallel, the two flange pressing valve seats 16 are respectively provided with a first through hole 17 and a second through hole 19, the second through hole 19 and the first through hole 17 are respectively communicated with the third cavity 20 and the first cavity 10, the third cavity 20 and the second cavity 18 are obliquely arranged, so that the buffering effect can be effectively played, when the valve is closed, the medium in the valve can be well buffered, the closing efficiency is improved, the valve is protected, and the service life of the valve is prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A flanged gate valve comprises a valve body (1), wherein flange pressing valve seats (16) are fixedly connected on two sides of the valve body (1), a valve cover (5) is connected on the top of the valve body (1), a valve rod (3) penetrates through the valve cover (5), the top of the valve rod (3) extends to the outside of the valve cover (5), and a hand wheel (14) is coaxially and fixedly connected on the valve rod (3) outside the valve cover (5), the flanged gate valve is characterized in that a first cavity (10) is coaxially arranged in the valve body (1), one end, away from the hand wheel (14), of the valve rod (3) extends into the first cavity (10), a valve clack (2) is fixedly connected on the valve rod (3) in the first cavity (10), a second cavity (18) is communicated on one side of the top of the first cavity (10), and the second cavity (18) and the first cavity (10) are obliquely arranged, the angle of inclination between first cavity (10) and second cavity (18) is greater than 45 degrees and is less than 90 degrees, the intercommunication is equipped with third cavity (20) on first cavity (10) bottom one side, the slope sets up between third cavity (20) and first cavity (10), just parallel arrangement between third cavity (20) and second cavity (18), two be equipped with first through-hole (17) and second through-hole (19) on the flange compresses tightly disk seat (16) respectively, second through-hole (19), first through-hole (17) set up with third cavity (20), first cavity (10) intercommunication respectively.

2. A flanged gate valve according to claim 1, characterized in that the valve cover (5) is fixedly connected to the valve body (1) by means of a number of intermediate bolts (6), and an intermediate gasket (4) is provided between the valve cover (5) and the valve body (1).

3. A flanged gate valve according to claim 1, characterized in that a packing (7) is arranged between the inner wall of the top of the valve cover (5) and the valve stem (3), a packing pressing sleeve (8) is arranged on the top of the packing (7), the packing pressing sleeve (8) is coaxially connected to the outside of the valve stem (3), the top of the packing pressing sleeve (8) is fixedly connected to a packing pressing plate (9), the packing pressing plate (9) is connected to the valve cover (5) through an eyelet bolt (11), and a first nut (12) is connected to the top of the eyelet bolt (11).

4. A flanged gate valve according to claim 3, characterized in that a stem nut (13) is fixedly attached to the top of the packing retainer plate (9), and the stem nut (13) is coaxially arranged on the outer wall of the valve stem (3).

5. A flanged gate valve according to claim 1, characterized in that the end of the valve stem (3) remote from the valve flap (2) is connected by means of a locking nut (15) and a hand wheel (14).