CN221443321U

CN221443321U - Butterfly valve

Info

Publication number: CN221443321U
Application number: CN202321828603.1U
Authority: CN
Inventors: 张汉涛
Original assignee: Shanghai Shenji Meter Co ltd
Current assignee: Shanghai Shenji Meter Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-07-30
Anticipated expiration: 2033-07-12

Abstract

The utility model discloses a butterfly valve, and relates to the technical field of valves; the utility model comprises a valve seat, wherein the inside of the valve seat is fixedly connected with a sealing ring, one side of the sealing ring is provided with a valve, one side of the bottom end of the valve is fixedly connected with a limit rod, and the bottom end of the valve seat is provided with a chute; through the cooperation between second adjust knob, worm wheel, keyway and the key, drive the telescopic link and rotate, thereby drive the valve and do eccentric rotation around the center pin of gag lever post, control valve opens or closes, simultaneously when opening the valve, through rotating first adjust knob, drive the bolt and upwards unscrew, drive the telescopic link simultaneously and upwards remove, utilize the connection effect of connecting rod, the pulling valve moves to one side of keeping away from the sealing ring simultaneously, make the contact surface separation of valve and sealing ring, produce contact friction when avoiding opening the valve, thereby reduce the wearing and tearing between valve and the sealing ring sealing surface, further improved the life of valve.

Description

Butterfly valve

Technical Field

The utility model relates to the technical field of valves, in particular to a butterfly valve.

Background

The butterfly valve is also called as a flap valve, and is a valve which has a simple structure and can be used for opening and closing low-pressure pipeline media. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe is mainly used for cutting and throttling.

The present butterfly valve plate has friction between the sealing gasket when opening and closing, and is easy to cause abrasion of the sealing gasket and the valve plate, so that the sealing performance is reduced.

Disclosure of utility model

In order to solve the problem that friction exists between the valve plate and the sealing gasket when the valve plate is opened and closed, and abrasion of the sealing gasket and the valve plate is easy to cause; the utility model aims to provide a butterfly valve.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a butterfly valve, includes the disk seat, the inside fixedly connected with sealing ring of disk seat, one side of sealing ring is provided with the valve, one side fixedly connected with gag lever post of valve bottom, the spout has been seted up to the bottom of disk seat, gag lever post activity card is established in the inside of spout, the top activity of disk seat is run through there is the telescopic link, the bottom of telescopic link is rotated and is connected with the connecting rod, the one end that the telescopic link was kept away from to the connecting rod is rotated with one side of valve and is connected, the top fixedly connected with mount pad of disk seat, the top fixedly connected with fixed cover of mount pad, the inside rotation of fixed cover is connected with the worm wheel, the top activity of telescopic link runs through the worm wheel, the keyway has been seted up on the top of worm wheel, one side fixedly connected with key of telescopic link, key slip joint is in the keyway, the top threaded connection of fixed cover has the bolt, the bolt is connected with the top rotation of telescopic link, the center pin and the center pin of telescopic link are in same straight line.

Preferably, a worm is rotatably connected to one side of the inside of the fixed cover, which is close to the worm wheel, and the worm is in meshed connection with the worm wheel.

Preferably, both ends of the valve seat are fixedly connected with flange plates, one side, away from each other, of the flange plates is provided with a mounting groove, and a sealing ring is fixedly arranged in the mounting groove.

Preferably, one end of the worm central shaft extends to the outer side of the mounting seat and is fixedly connected with a second adjusting knob, and the top end of the bolt is fixedly connected with a first adjusting knob.

Compared with the prior art, the utility model has the beneficial effects that:

Through the cooperation between second adjust knob, worm wheel, keyway and the key, drive the telescopic link and rotate, thereby drive the valve and do eccentric rotation around the center pin of gag lever post, control valve opens or closes, simultaneously when opening the valve, through rotating first adjust knob, drive the bolt and upwards unscrew, drive the telescopic link simultaneously and upwards remove, utilize the connection effect of connecting rod, the pulling valve moves to one side of keeping away from the sealing ring simultaneously, make the contact surface separation of valve and sealing ring, produce contact friction when avoiding opening the valve, thereby reduce the wearing and tearing between valve and the sealing ring sealing surface, further improved the life of valve.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic diagram of the overall split structure of the present utility model.

Fig. 3 is an enlarged view of the utility model at a in fig. 2.

Fig. 4 is an enlarged view of the present utility model at B in fig. 2.

Fig. 5 is a schematic view of the structure of the worm wheel and the key groove in the present utility model.

In the figure: 1. a valve seat; 2. a seal ring; 3. a valve; 4. a limit rod; 5. a chute; 6. a telescopic rod; 7. a connecting rod; 8. a fixed cover; 9. a worm wheel; 10. a key slot; 11. a key; 12. a worm; 13. a bolt; 14. a first adjustment knob; 15. a second adjustment knob; 16. a flange plate; 17. a seal ring; 18. a mounting base; 19. and a mounting groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: as shown in fig. 1-4, the utility model provides a butterfly valve, which comprises a valve seat 1, a sealing ring 2 is fixedly connected in the valve seat 1, one side of the sealing ring 2 is provided with a valve 3, one side of the bottom end of the valve 3 is fixedly connected with a limit rod 4, the bottom end of the valve seat 1 is provided with a sliding groove 5, the limit rod 4 is movably clamped in the sliding groove 5, the top end of the valve seat 1 movably penetrates through a telescopic rod 6, the bottom end of the telescopic rod 6 is rotationally connected with a connecting rod 7, one end of the connecting rod 7 far away from the telescopic rod 6 is rotationally connected with one side of the valve 3, the top end of the valve seat 1 is fixedly connected with a mounting seat 18, the top end of the mounting seat 18 is fixedly connected with a fixing cover 8, the inside of the fixing cover 8 is rotationally connected with a worm wheel 9, the top end of the telescopic rod 6 movably penetrates through the worm wheel 9, the top end of the worm wheel 9 is provided with a key groove 10, one side of the telescopic rod 6 is fixedly connected with a key 11, the key 11 is slidably clamped in the key groove 10, the top end of the fixing cover 8 is in threaded connection with a bolt 13, the bolt 13 is rotationally connected with the top end of the telescopic rod 6, and the central axis of the limit rod 4 is in the same straight line with the central axis of the telescopic rod 6.

A worm 12 is rotatably connected to one side of the inside of the fixed cover 8, which is close to the worm wheel 9, and the worm 12 is engaged with the worm wheel 9.

By adopting the technical scheme, the valve 3 is convenient to open and close by arranging the worm 12.

The flange 16 is fixedly connected to both ends of the valve seat 1.

By adopting the technical scheme, the flange 16 is arranged, so that the valve body is convenient to connect with the pipeline.

The flange 16 is kept away from the side and has all been seted up mounting groove 19, and the inside fixed mounting of mounting groove 19 has sealing washer 17.

By adopting the technical scheme, the sealing ring 17 is fixedly arranged in the mounting groove 19, so that the pipeline connection position is conveniently sealed.

One end of the central shaft of the worm 12 extends to the outer side of the mounting seat 18 and is fixedly connected with a second adjusting knob 15, and the top end of the bolt 13 is fixedly connected with a first adjusting knob 14.

By adopting the technical scheme, through setting up second adjust knob 15 and first adjust knob 14, be convenient for rotate worm 12 and telescopic link 6 respectively and realize the drive of equipment.

Working principle: during the use, through rotating second adjust knob 15, drive worm 12 and rotate, utilize worm wheel 9 and worm 12 meshing to connect, and utilize the cooperation between keyway 10 and the key 11, drive telescopic link 6 simultaneously and rotate, thereby drive valve 3 and do eccentric rotation around the center pin of gag lever post 4, control valve 3 opens or close, simultaneously when opening valve 3, through rotating first adjust knob 14, drive bolt 13 and upwards unscrew, drive telescopic link 6 simultaneously and upwards remove, utilize the linking of connecting rod 7, simultaneously, pulling valve 3 moves to the one side of keeping away from sealing ring 2, make the contact surface separation of valve 3 and sealing ring 2, produce contact friction when avoiding opening valve 3, thereby reduce the wearing and tearing between valve 3 and the sealing ring 2 sealed face.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. Butterfly valve, comprising a valve seat (1), characterized in that: the inside fixedly connected with sealing ring (2) of disk seat (1), one side of sealing ring (2) is provided with valve (3), one side fixedly connected with gag lever post (4) of valve (3) bottom, spout (5) have been seted up to the bottom of disk seat (1), the inside at spout (5) is established to gag lever post (4) activity card, the top activity of disk seat (1) is run through there is telescopic link (6), the bottom rotation of telescopic link (6) is connected with connecting rod (7), one end that telescopic link (6) was kept away from to connecting rod (7) is rotated with one side of valve (3) and is connected, the top fixedly connected with mount pad (18) of disk seat (1), the top fixedly connected with fixed cover (8) of mount pad (18), the inside rotation of fixed cover (8) is connected with worm wheel (9), the top activity of telescopic link (6) runs through (9) and has been seted up keyway (10), one side fixedly connected with key (11) of telescopic link (6), worm wheel (11) are kept away from one side rotation of telescopic link (6) and are connected with one side of worm wheel (11) and one side rotation of valve (3) is rotated at one side of valve (3) and one side of valve (3), the bolt (13) is rotationally connected with the top end of the telescopic rod (6).

2. A butterfly valve according to claim 1, wherein a worm (12) is rotatably connected to the inside of the fixed cover (8) on the side close to the worm wheel (9), said worm (12) being in engagement with the worm wheel (9).

3. A butterfly valve according to claim 1, wherein the valve seat (1) is fixedly connected with flanges (16) at both ends.

4. A butterfly valve according to claim 3, wherein the flange (16) is provided with a mounting groove (19) on a side thereof remote from each other, and a sealing ring (17) is fixedly mounted in the mounting groove (19).

5. A butterfly valve according to claim 2, wherein one end of the central shaft of the worm (12) extends to the outside of the mounting seat (18) and is fixedly connected with a second adjusting knob (15), and the top end of the bolt (13) is fixedly connected with a first adjusting knob (14).

6. A butterfly valve according to claim 1, wherein the central axis of the limit lever (4) is collinear with the central axis of the telescopic lever (6).