CN212028570U

CN212028570U - Hard sealing butterfly valve

Info

Publication number: CN212028570U
Application number: CN202020610153.9U
Authority: CN
Inventors: 许辉斗
Original assignee: Jiulong Valve Co ltd
Current assignee: Jiulong Valve Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-11-27
Anticipated expiration: 2030-04-21

Abstract

The utility model discloses a butterfly valve sealed firmly belongs to ball valve technical field. The hard sealing butterfly valve comprises a valve body, wherein a valve rod is arranged inside the valve body, a butterfly plate is fixedly arranged on the outer surface of the valve rod, an annular groove is formed in the outer surface of the butterfly plate, an annular sealing gasket is arranged inside the annular groove, an annular sealing stop block is fixedly connected to one side inside the valve body, and a gasket clamping groove is formed inside the annular sealing stop block; the utility model discloses a cooperation of butterfly plate, annular groove, annular seal dog and packing ring draw-in groove is used, and when the staff was making this ball valve close, annular seal ring on the butterfly plate can block in the packing ring draw-in groove into to make this ball valve seal, and because annular seal ring is the software, can prevent that the butterfly plate from taking place directly to touch with other components when the closure, avoid for a long time taking place to touch the back with other objects and lead to the butterfly plate impaired, make the unable normal use of this ball valve.

Description

Hard sealing butterfly valve

Technical Field

The utility model relates to a ball valve technical field especially relates to hard seal butterfly valve.

Background

The hard sealing butterfly valve is also called flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline medium. The hard sealing butterfly valve mainly plays the roles of cutting off and throttling on the pipeline. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved. The hard sealing butterfly valve is suitable for pipelines for conveying various corrosive and non-corrosive fluid media in producer furnaces, coal gas, steam, natural gas, urban coal gas, cold and hot air, chemical smelting engineering and power generation environment-friendly systems, and is used for regulating and cutting off the flow of the media. In prior art, after the butterfly valve sealed firmly was used for a long time, because the edge that friction can make inside butterfly plate takes place wearing and tearing to reduced the leakproofness of this ball valve, and the staff still need change the butterfly plate, improved use cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art because the edge that the friction can make inside butterfly plate takes place wearing and tearing to reduced the leakproofness of this ball valve, and the staff still need change the butterfly plate, improved use cost's problem, and the hard seal butterfly valve who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme: hard seal butterfly valve, including the valve body, the inside of valve body is provided with the valve rod, the fixed surface of valve rod installs the butterfly plate, the annular groove has been seted up to the surface of butterfly plate, the inside of annular groove is provided with ring seal ring, the inside one side fixedly connected with annular seal dog of valve body, the packing ring draw-in groove has been seted up to the inside of annular seal dog, ring seal ring and packing ring draw-in groove looks adaptation.

Preferably, the top end fixed mounting of valve body has the valve rod connecting clamp, the top fixedly connected with linkage subassembly of valve rod connecting clamp.

Preferably, a rotary disc is arranged on one side of the linkage assembly, and the top end of the valve rod extends to the inside of the linkage assembly.

Preferably, the front surface of the valve body is provided with a pipeline connecting port, and the front surface of the pipeline connecting port is provided with a mounting hole.

Preferably, the bottom of the valve body is fixedly provided with a valve rod stabilizing clamping plate, and the bottom end of the valve rod is movably connected with the valve rod stabilizing clamping plate.

Preferably, the number of the mounting holes is several, and the several mounting holes are arranged on the front surface of the pipeline connecting port in an annular array.

Compared with the prior art, the utility model provides a butterfly valve sealed firmly possesses following beneficial effect:

1. the utility model discloses, use through the butterfly plate, the annular groove, ring seal ring, the cooperation of ring seal dog and packing ring draw-in groove, when the staff is making this ball valve close, ring seal ring on the butterfly plate can block in the packing ring draw-in groove into to make this ball valve seal, and because ring seal ring is the software, can prevent that the butterfly plate from taking place directly to touch with other components when the closure, avoid for a long time taking place with other objects and lead to the butterfly plate impaired after touching, make the unable normal use of this ball valve.

2. The utility model discloses, cooperation through ring seal ring and packing ring draw-in groove is used, go into back in the packing ring draw-in groove when ring seal ring card, the resistance that receives when the butterfly plate is rotatory has been increased, thereby make this ball valve more stable when closing, through the setting of annular groove, when ring seal ring need be changed, the staff's accessible is opened the valve body, then take off it from the annular groove and can change, not only easy operation is convenient, time saving and labor saving, and because ring seal ring is the rubber material, the cost of manufacture is lower, make the device have good practicality.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can prevent that the butterfly plate from taking place directly to touch with other components when the closure, avoid for a long time taking place to touch the back with other objects and lead to the butterfly plate impaired for the unable normal use of this ball valve.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the butterfly plate of the present invention;

fig. 4 is a schematic side view of the valve body of the present invention.

In the figure: 1. a valve body; 2. a valve stem; 3. a butterfly plate; 4. an annular groove; 5. an annular sealing gasket; 6. an annular sealing stop block; 7. a gasket clamp groove; 8. a valve rod connecting clamp; 9. a linkage assembly; 10. a turntable; 11. a pipe connection port; 12. mounting holes; 13. the valve rod stabilizes the clamping plate.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a hard seal butterfly valve includes a valve body 1, a valve rod 2 is disposed inside the valve body 1, a butterfly plate 3 is fixedly mounted on an outer surface of the valve rod 2, the butterfly plate 3 can be driven to close the ball valve by rotating the valve rod 2, an annular groove 4 is formed in the outer surface of the butterfly plate 3, an annular seal gasket 5 is disposed inside the annular groove 4, an annular seal stop 6 is fixedly connected to one side inside the valve body 1, when a worker closes the ball valve, the annular seal gasket 5 on the butterfly plate 3 can be clamped into a gasket clamping groove 7, so that the ball valve is sealed, a gasket clamping groove 7 is formed inside the annular seal stop 6, the annular seal gasket 5 is matched with the gasket clamping groove 7, the annular seal gasket 5 is soft, the butterfly plate 3 can be prevented from directly touching other components when being closed, and the butterfly plate 3 is prevented from being damaged due to long-time collision with other objects, top fixed mounting of valve body 1 has valve rod connecting clamp 8, the top fixedly connected with linkage assembly 9 of valve rod connecting clamp 8, one side of linkage assembly 9 is provided with carousel 10, the staff accessible makes carousel 10 rotate, thereby make the inside linkage gear of linkage assembly 9 drive valve rod 2 and rotate, the top of valve rod 2 extends to linkage assembly 9's inside, pipe connection port 11 has been seted up in valve body 1's front, mounting hole 12 has been seted up in pipe connection port 11's front, through the setting of pipe connection port 11, can make this ball valve be connected with the water pipe, the bottom fixed mounting of valve body 1 has the firm splint 13 of valve rod, the bottom and the firm splint 13 swing joint of valve rod 2, the quantity of mounting hole 12 is a plurality of, and a plurality of mounting hole 12 is seted up in pipe connection port 11's front with annular array's form.

In the utility model, through the matching use of the butterfly plate 3, the annular groove 4, the annular sealing washer 5, the annular sealing stopper 6 and the gasket clamping groove 7, when the ball valve is closed by a worker, the annular sealing washer 5 on the butterfly plate 3 can be clamped into the gasket clamping groove 7, so that the ball valve is sealed, and because the annular sealing washer 5 is soft, the butterfly plate 3 can be prevented from directly touching other components when being closed, the butterfly plate 3 is prevented from being damaged after being touched with other objects for a long time, so that the ball valve can not be normally used, through the matching use of the annular sealing washer 5 and the gasket clamping groove 7, after the annular sealing washer 5 is clamped into the gasket clamping groove 7, the resistance force received when the butterfly plate 3 rotates is increased, so that the ball valve is more stable when being closed, through the setting of the annular groove 4, when the annular sealing washer 5 needs to be replaced, the staff accessible is opened valve body 1, then takes off it from annular groove 4 and can change, and not only easy operation is convenient, labour saving and time saving, and because annular seal ring 5 is the rubber material, the cost of manufacture is lower for the device has good practicality.

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. Hard seal butterfly valve, including valve body (1), its characterized in that, the inside of valve body (1) is provided with valve rod (2), the fixed surface of valve rod (2) installs butterfly plate (3), annular groove (4) have been seted up to the surface of butterfly plate (3), the inside of annular groove (4) is provided with ring seal ring (5), the inside one side fixedly connected with ring seal dog (6) of valve body (1), ring seal dog (6) have been seted up to the inside of ring seal dog (7), ring seal ring (5) and ring seal ring draw-in groove (7) looks adaptation.

2. The hard seal butterfly valve according to claim 1, characterized in that a valve rod connecting clamp (8) is fixedly mounted on the top end of the valve body (1), and a linkage assembly (9) is fixedly connected to the top of the valve rod connecting clamp (8).

3. A hard-sealing butterfly valve according to claim 2, characterised in that the linkage assembly (9) is provided with a rotary disk (10) on one side, the top end of the valve stem (2) extending inside the linkage assembly (9).

4. The butterfly valve of claim 1, wherein the valve body (1) has a pipe connection port (11) formed on a front surface thereof, and the pipe connection port (11) has a mounting hole (12) formed on a front surface thereof.

5. The hard seal butterfly valve according to claim 1, wherein a valve rod fixing clamping plate (13) is fixedly installed at the bottom of the valve body (1), and the bottom end of the valve rod (2) is movably connected with the valve rod fixing clamping plate (13).

6. The hard seal butterfly valve according to claim 4, wherein the number of the mounting holes (12) is several, and the several mounting holes (12) are opened in an annular array on a front surface of the pipe connection port (11).