CN213598601U

CN213598601U - Flat gate valve

Info

Publication number: CN213598601U
Application number: CN202022469641.5U
Authority: CN
Inventors: 黄中胜; 刘建; 刘必兰; 陈文�; 陈晓娟; 殷亮亮
Original assignee: Jiangsu Zhongte Valve Co ltd
Current assignee: Jiangsu Zhongte Valve Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-02
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a plate valve, which comprises a valve body, be equipped with inflow passageway and outflow passageway in the valve body, valve body top fixedly connected with connecting block, the cavity has been seted up to the connecting block inside wall, the connecting block top is equipped with the rolling disc, rolling disc bottom fixedly connected with dwang, dwang through connection piece and fixedly connected with threaded rod, the opening with dwang looks adaptation is seted up to the connecting block lateral wall, the dwang lateral wall rotates with the opening inside wall to be connected, threaded rod bottom through connection piece and valve body are connected with sealing mechanism in proper order. The utility model discloses a rotating the rolling disc, making flashboard and piston plate downstream, the piston plate removes makes in the air gets into the gasbag through logical chamber, and then makes gasbag inflation convection current inflow passageway and outflow passageway seal, uses under the cooperation of flashboard and gasbag, has improved the leakproofness of device, avoids the device leakage problem to appear in the use.

Description

Flat gate valve

Technical Field

The utility model relates to a plate valve technical field especially relates to a plate valve.

Background

At present, the common flat gate valve widely applied to the fields of petroleum, natural gas, coal gas, chemical industry and the like has a structural form comprising components such as a valve body, a valve cover, a valve rod, a hand wheel, a valve seat, a valve clack and the like, wherein the hand wheel is positioned on the upper part of the valve rod and outside the valve cover. However, the ordinary flat gate valve has a certain problem in use, and the valve rod is required to rotate and lift when the valve is opened or closed, so that the sealing filler between the valve rod and the valve cover is abraded, a certain gap is formed between the valve rod and the sealing filler, the ordinary flat gate valve is very easy to leak after the valve rod is closed or opened for a long time, the sealing performance of the flat gate valve is poor, and the use of the flat gate valve is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the sealing performance is poor in the use of the flat gate valve in the prior art and providing a flat gate valve.

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

a flat gate valve comprises a valve body, wherein an inflow channel and an outflow channel are arranged in the valve body, the top of the valve body is fixedly connected with a connecting block, the inner side wall of the connecting block is provided with a cavity, the top of the connecting block is provided with a rotating disc, the bottom of the rotating disc is fixedly connected with a rotating rod, the rotating rod penetrates through the connecting block and a threaded rod, the outer side wall of the connecting block is provided with an opening matched with the rotating rod, the outer side wall of the rotating rod is rotatably connected with the inner side wall of the opening, the bottom of the threaded rod sequentially penetrates through the connecting block and the valve body and is connected with a sealing mechanism, the sealing mechanism comprises a flashboard, the top of the flashboard is provided with a movable groove, the threaded rod is in threaded connection with the inner side wall, the valve body is characterized in that limiting plates are fixedly connected to the inner side walls of the two ends of the valve body, the bottoms of the limiting plates are in contact with the top of the piston plate, springs are fixedly connected to the bottoms of the piston plate, and the bottoms of the springs are fixedly connected with the inner bottom of the valve body.

Preferably, all be equipped with the gasbag in inflow passageway and the outflow passageway, the logical chamber has been seted up to the valve body inside wall, the gasbag air inlet runs through logical chamber and downwardly extending, logical chamber vent is located piston plate below.

Preferably, the inner side walls of the inflow channel and the outflow channel are fixedly connected with a first filter screen and a second filter screen respectively, and the diameter of filter holes in the second filter screen is smaller than that of filter holes in the first filter screen.

Preferably, the inner side wall of the through opening is fixedly connected with an elastic rubber pad, and the outer side wall of the flashboard is in contact with the elastic rubber pad.

Preferably, the inner side wall of the movable groove is provided with a thread groove matched with the threaded rod.

The utility model has the advantages that: the sealing performance of the device is improved, the leakage problem of the device in the using process is avoided, and the device is convenient to use. Avoid solid particle net to lead to the fact the corruption to the flashboard, and then influence the leakproofness of device, further filter the impurity of having in the fluid through the second filter screen in the outflow passageway and get rid of, improve fluidic quality.

Drawings

Fig. 1 is a schematic structural view of a flat gate valve according to the present invention;

fig. 2 is an enlarged view of a structure a in fig. 1.

In the figure: 1. a valve body; 2. an inflow channel; 3. an outflow channel; 4. connecting blocks; 5. rotating the disc; 6. rotating the rod; 7. a threaded rod; 8. a shutter plate; 9. a baffle plate; 10. a piston plate; 11. a spring; 12. an air bag; 13. a cavity is communicated; 14. a first filter screen; 15. a second filter.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-2, a plate valve, including valve body 1, be equipped with inflow channel 2 and outflow channel 3 in the

valve body

1, 1 top fixedly connected with connecting block 4 of valve body, the cavity has been seted up to 4 inside walls of connecting block, 4 tops of connecting block are equipped with

rolling disc

5, 5 bottom fixedly connected with dwang 6 of rolling disc, 6 through connection piece 4 of dwang and fixedly connected with threaded rod 7, the opening with 6 looks adaptations of dwang is seted up to 4 lateral walls of connecting block, 6 lateral walls of dwang rotate with the opening inside wall to be connected, 7 bottoms of threaded rod are through connection piece 4 and valve body 1 in proper order and are. Sealing mechanism includes flashboard 8, the movable groove has been seted up at flashboard 8 top, threaded rod 7 and movable inslot inside wall threaded connection, the thread groove with 7 looks adaptations of threaded rod is seted up to the movable inslot inside wall, 1 inside wall fixedly connected with baffle 9 of valve body, the mouth that runs through with 8 looks adaptations of flashboard is seted up at baffle 9 top, run through mouthful inside wall fixedly connected with elastic rubber pad, 8 lateral walls of flashboard all contact with elastic rubber pad, guarantee the leakproofness at 1 top of valve body, avoid the fluid to get into 1 top of valve body and cause the corruption to threaded rod 7, thereby damage the device, 1 inside wall sliding connection of valve body has piston plate 10, the equal fixedly connected with limiting plate of 1 both ends inside wall of valve body, the limiting plate bottom contacts with 10 tops of piston plate, piston plate 10 bottom fixedly connected with spring 11, spring.

All be equipped with gasbag 12 in inflow passageway 2 and the outflow passageway 3, logical chamber 13 has been seted up to 1 inside wall of valve body, gasbag 12 air inlet runs through logical chamber 13 and downwardly extending, logical chamber 13 vent is located piston plate 10 below,

inflow passageway

2 and 3 inside walls of outflow passageway are first filter screen 14 of fixedly connected with and second filter screen 15 respectively, the hole diameter of straining is less than on first filter screen 14 on second filter screen 15, be convenient for carry out the secondary filter to the fluid, improve the filter effect.

The utility model discloses in, through forward rotation rolling disc 5, rolling disc 5 drives dwang 6 and rotates, make 7 forward rotations of threaded rod, thereby make flashboard 8 remove to piston plate 10 direction, flashboard 8 remove to with piston plate 10 top contact after push piston plate 10 remove to keeping away from the limiting plate direction, piston plate 10 removes 1 bottom air inflow of extrusion valve body and leads to the chamber 13 in, the air is extruded to leading to chamber 13 after in gasbag 12 air inlet inflow gasbag 12, make gasbag 12 inflation seal inflow passageway 2 and outflow passageway 3.

When the gate needs to be opened, through the antiport rolling disc 5 for flashboard 8 removes to connecting block 4 directions, makes 8 bottoms of flashboards get into in the through hole, and piston plate 10 is the rebound under the effect of spring 11 simultaneously, makes the air in the gasbag 12 flow into 1 bottom of valve body through leading to chamber 13, thereby makes gasbag 12 shrink, the device work of being convenient for.

Claims

1. The flat gate valve comprises a valve body (1) and is characterized in that an inflow channel (2) and an outflow channel (3) are arranged in the valve body (1), a connecting block (4) is fixedly connected to the top of the valve body (1), a cavity is formed in the inner side wall of the connecting block (4), a rotating disc (5) is arranged at the top of the connecting block (4), a rotating rod (6) is fixedly connected to the bottom of the rotating disc (5), the rotating rod (6) penetrates through the connecting block (4) and is fixedly connected with a threaded rod (7), an opening matched with the rotating rod (6) is formed in the outer side wall of the connecting block (4), the outer side wall of the rotating rod (6) is rotatably connected with the opening of the inner side wall, the bottom of the threaded rod (7) sequentially penetrates through the connecting block (4) and the valve body (1) and is connected with a sealing mechanism, threaded rod (7) and activity inslot inside wall threaded connection, valve body (1) inside wall fixedly connected with baffle (9), run through the mouth with flashboard (8) looks adaptation is seted up at baffle (9) top, valve body (1) inside wall sliding connection has piston plate (10), the equal fixedly connected with limiting plate of valve body (1) both ends inside wall, limiting plate bottom and piston plate (10) top contact, piston plate (10) bottom fixedly connected with spring (11), bottom fixed connection in spring (11) bottom and valve body (1).

2. The plate valve of claim 1, wherein air bags (12) are arranged in the inflow channel (2) and the outflow channel (3), a through cavity (13) is formed in the inner side wall of the valve body (1), an air inlet of each air bag (12) penetrates through the through cavity (13) and extends downwards, and an air vent of the through cavity (13) is positioned below the piston plate (10).

3. A plate valve according to claim 2, characterized in that the inner side walls of the inflow channel (2) and the outflow channel (3) are fixedly connected with a first filter (14) and a second filter (15), respectively, and the diameter of the filter hole on the second filter (15) is smaller than that of the filter hole on the first filter (14).

4. The plate valve of claim 1, wherein an elastic rubber gasket is fixedly connected to the inner side wall of the through opening, and the outer side wall of the gate plate (8) is in contact with the elastic rubber gasket.

5. The plate gate valve according to claim 1, wherein the inner side wall of the movable groove is provided with a thread groove adapted to the threaded rod (7).