CN220956863U - Butterfly valve with multilayer sealing structure - Google Patents
Butterfly valve with multilayer sealing structure Download PDFInfo
- Publication number
- CN220956863U CN220956863U CN202322651254.7U CN202322651254U CN220956863U CN 220956863 U CN220956863 U CN 220956863U CN 202322651254 U CN202322651254 U CN 202322651254U CN 220956863 U CN220956863 U CN 220956863U
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- Prior art keywords
- valve
- sealing
- valve body
- sleeve
- air bag
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- 238000007789 sealing Methods 0.000 title claims abstract description 114
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Valve Housings (AREA)
- Lift Valve (AREA)
Abstract
The utility model relates to the technical field of butterfly valves and discloses a butterfly valve with a multilayer sealing structure, wherein a valve body is connected with a valve plate through a sealing assembly, the sealing assembly comprises a sealing gasket sleeved on the valve plate, a sealing sleeve, an air bag sleeve and an electromagnetic valve fixedly arranged on the valve body, the air bag sleeve is inserted into an air bag groove to be in abutting connection with the valve body, the sealing sleeve is sleeved on the valve body and the air bag sleeve to be fixedly connected with the valve body and the air bag sleeve, the air bag sleeve is connected with the electromagnetic valve through a connecting assembly, and when the valve plate is in a closed state, the sealing gasket is in abutting connection with the sealing sleeve and the air bag sleeve is in an inflated state. The multi-layer sealing structure has the beneficial effects of reducing abrasion of the sealing element and having strong sealing performance, and solves the problems that the sealing performance is relatively common, the sealing ring or the sealing sleeve can be frequently rubbed with the valve body or the valve plate, the sealing ring or the sealing sleeve is rapidly abraded and aged, and internal fluid is leaked.
Description
Technical Field
The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a multi-layer sealing structure.
Background
The butterfly valve is also called as a flap valve, and is a regulating valve with simple structure, and mainly has the functions of cutting off and throttling on a pipeline. The device is mainly used for controlling the flow of various fluids such as air, water, steam, oil products, liquid metal and the like. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve opening and closing piece in the valve body, so that the purpose of opening and closing or adjusting is achieved.
The sealing structure of the existing butterfly valve is usually sealed by adopting a single sealing ring or sealing sleeve, so that the butterfly valve only has one sealing structure, and the sealing performance is relatively general. When the butterfly valve is frequently opened and closed, the sealing ring or the sealing sleeve can be frequently rubbed with the valve body or the valve plate, so that the problem of quick abrasion and aging of the sealing ring or the sealing sleeve can be caused, and the problem of internal fluid leakage can be caused.
Disclosure of utility model
The present utility model is directed to a butterfly valve with a multi-layer sealing structure, which solves the above-mentioned problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a butterfly valve with multilayer seal structure, includes the valve body, rotates the valve shaft that sets up in the valve body inside, the valve plate of fixed setting on the valve shaft, the pneumatic actuator of fixed mounting in the valve body top, the valve shaft is connected its characterized in that with pneumatic actuator: the valve body is connected with the valve plate through a sealing assembly, the sealing assembly comprises a sealing gasket sleeved on the valve plate, a sealing sleeve, an air bag sleeve and an electromagnetic valve fixedly installed on the valve body, an air bag groove is formed in the inner side wall of the valve body, the air bag sleeve is inserted into the air bag groove to be in interference connection with the valve body, the sealing sleeve is sleeved on the valve body and the air bag sleeve and fixedly connected with the valve body and the air bag sleeve, the air bag sleeve is connected with the electromagnetic valve through a connecting assembly, and the sealing gasket is in interference connection with the sealing sleeve when the valve plate is in a closed state and the air bag sleeve is in an inflated state.
Preferably, sealing rings are fixedly arranged on the front side and the rear side of the sealing sleeve, sealing grooves are formed in the sealing rings, and the front side wall and the rear side wall of the valve body are fixedly connected with the side walls of the sealing grooves.
Preferably, the valve plate is provided with a gasket groove, and the sealing gasket is inserted into the gasket groove and fixedly connected with the valve plate.
Preferably, the connecting component comprises a support fixedly arranged on the valve body and an air pipe fixedly arranged on the air bag sleeve, the electromagnetic valve is fixedly arranged on the support, a pipe passing hole is formed in the valve body in a penetrating mode, and the air pipe is connected with the electromagnetic valve after passing through the pipe passing hole.
Preferably, the thickness of the air bag sleeve is larger than that of the valve plate.
Preferably, the valve body is fixedly provided with a mounting ring which is convenient to install.
Preferably, the sealing gasket and the sealing sleeve are made of nitrile rubber.
The utility model has the beneficial effects that: when the valve plate needs to be opened and closed, the valve shaft is connected with the pneumatic actuator, the air pipe is connected with the electromagnetic valve, then the pneumatic actuator and the electromagnetic valve are connected with the external controller, when the valve plate needs to be closed, the pneumatic actuator is started to close the valve plate, as the sealing gasket is sleeved on the valve plate and fixedly connected with the valve body, the sealing gasket and the sealing gasket can be mutually contacted when the valve plate is closed, friction cannot be generated between the valve plate and the valve body, the effect of reducing abrasion is achieved, as the air bag sleeve is inserted into the air bag groove to be in abutting connection with the valve body, the sealing gasket is sleeved on the air bag sleeve and fixedly connected with the air bag sleeve, after the valve plate is closed in place, the electromagnetic valve is opened to enable the air bag sleeve to be inflated, the sealing gasket is pushed to be completely attached to the valve plate and the sealing gasket, a multi-layer sealing structure is formed at the joint between the front side and the rear side of the valve plate and the joint between the air bag sleeve and the sealing gasket, the sealing gasket is closed, the effect of enhancing sealing performance and preventing fluid leakage is achieved, and when the valve plate needs to be opened, the electromagnetic valve is closed, the air in the air bag sleeve is discharged, and then the pneumatic actuator is started to enable the valve plate to be opened; in summary, the multi-layer sealing structure has the beneficial effects of reducing abrasion of the sealing element and having strong sealing performance, and solves the problems that the sealing ring or the sealing sleeve is frequently rubbed with the valve body or the valve plate, so that the sealing ring or the sealing sleeve is rapidly abraded and aged, and internal fluid is leaked due to the fact that the existing butterfly valve only has one sealing structure and has relatively common sealing performance.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2.
In the figure: valve body 1, valve shaft 2, valve plate 3, pneumatic actuator 4, sealing gasket 5, seal cover 6, gasbag cover 7, solenoid valve 8, gasbag groove 9, sealing washer 10, seal groove 11, putting and filling up groove 12, support 13, trachea 14, pipe hole 15 and collar 16.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
As shown in fig. 1-3, the utility model discloses a butterfly valve with a multi-layer sealing structure, which comprises a valve body 1, a valve shaft 2 rotatably arranged in the valve body 1, a valve plate 3 fixedly arranged on the valve shaft 2, and a pneumatic actuator 4 fixedly arranged above the valve body 1, wherein the valve shaft 2 is connected with the pneumatic actuator 4, the valve body 1 is connected with the valve plate 3 through a sealing assembly, the sealing assembly comprises a sealing gasket 5 sleeved on the valve plate 3, a sealing sleeve 6, an air bag sleeve 7 and an electromagnetic valve 8 fixedly arranged on the valve body 1, an air bag groove 9 is formed in the inner side wall of the valve body 1, the air bag sleeve 7 is inserted into the air bag groove 9 to be in abutting connection with the valve body 1, the sealing sleeve 6 is sleeved on the valve body 1 and the air bag sleeve 7 to be fixedly connected with the valve body 1 and the air bag sleeve 7, the air bag sleeve 7 is connected with the electromagnetic valve 8 through a connecting assembly, the sealing gasket 5 is in abutting connection with the sealing sleeve 6 when the valve plate 3 is in a closed state, and the air bag sleeve 7 is in an inflated state. When the valve plate 3 needs to be opened and closed, the valve shaft 2 is connected with the pneumatic actuator 4, the air pipe 14 is connected with the electromagnetic valve 8, then the pneumatic actuator 4 and the electromagnetic valve 8 are connected with an external controller, when the valve plate 3 needs to be closed, the pneumatic actuator 4 is started to close the valve plate 3, as the sealing gasket 5 is sleeved on the valve plate 3, the sealing sleeve 6 is sleeved on the valve body 1 and fixedly connected with the valve body 1, when the valve plate 3 is closed, the sealing gasket 5 and the sealing sleeve 6 are contacted with each other, friction is not generated between the valve plate 3 and the valve body 1, the effect of reducing abrasion is achieved, as the air bag sleeve 7 is inserted into the air bag groove 9 to be in abutting connection with the valve body 1, the sealing sleeve 6 is arranged on the air bag sleeve 7 and fixedly connected with the air bag sleeve 7, when the valve plate 3 is closed in place, the electromagnetic valve 8 is opened to enable the air bag sleeve 7 to be inflated, the sealing sleeve 6 is pushed to be completely adhered to the valve plate 3 and the sealing gasket 5 after the air bag sleeve 7 is inflated, a multi-layer sealing structure is formed at the junction with the front side and the back side of the valve plate 3, the effect of enhancing sealing performance and preventing fluid leakage is achieved, when the valve plate 3 needs to be opened, the air bag sleeve 8 is closed, and then the air bag 4 is exhausted from the valve plate 3 is opened; in summary, the multi-layer sealing structure has the beneficial effects of reducing abrasion of the sealing element and having strong sealing performance, and solves the problems that the sealing performance is relatively common, the sealing ring 10 or the sealing sleeve 6 can frequently rub with the valve body 1 or the valve plate 3, the sealing ring 10 or the sealing sleeve 6 is rapidly worn and aged, and internal fluid is leaked in the existing butterfly valve.
Preferably, sealing rings 10 are fixedly arranged on the front side and the rear side of the sealing sleeve 6, sealing grooves 11 are formed in the sealing rings 10, and the front side wall and the rear side wall of the valve body 1 are fixedly connected with the side walls of the sealing grooves 11. Because the sealing ring 10 is provided with the sealing groove 11, the front side wall and the rear side wall of the valve body 1 are fixedly connected with the side wall of the sealing groove 11, and the effect of preventing external impurities from entering the air bag groove 9 is achieved.
Preferably, the valve plate 3 is provided with a gasket groove 12, and the sealing gasket 5 is inserted into the gasket groove 12 and fixedly connected with the valve plate 3. The sealing gasket 5 is inserted into the gasket placing groove 12 to be fixedly connected with the valve plate 3, so that the sealing gasket 5 is prevented from moving.
Preferably, the connecting component comprises a bracket 13 fixedly arranged on the valve body 1 and an air pipe 14 fixedly arranged on the air bag sleeve 7, the electromagnetic valve 8 is fixedly arranged on the bracket 13, a pipe passing hole 15 is formed in the valve body 1 in a penetrating manner, and the air pipe 14 passes through the pipe passing hole 15 and then is connected with the electromagnetic valve 8. Because the valve body 1 is provided with the pipe passing hole 15 in a penetrating way, the air pipe 14 passes through the pipe passing hole 15 and then is connected with the electromagnetic valve 8, and the effect of facilitating the connection of the air pipe 14 and the electromagnetic valve 8 is achieved.
Preferably, the thickness of the air bag cover 7 is larger than the thickness of the valve plate 3. Because the thickness of the air bag sleeve 7 is larger than that of the valve plate 3, the function of pushing the sealing sleeve 6 to be completely attached to the valve plate 3 is achieved.
Preferably, the valve body 1 is fixedly provided with a mounting ring 16 which is convenient to install. The valve body 1 is fixedly provided with the mounting ring 16 which is convenient to install, so that the valve body 1 and equipment are convenient to install.
Preferably, the sealing gasket 5 and the sealing sleeve 6 are made of nitrile rubber. The sealing gasket 5 and the sealing sleeve 6 are made of nitrile rubber, so that the wear-resistant rubber has the characteristics of good wear resistance, good oil resistance and the like.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. The utility model provides a butterfly valve with multilayer seal structure, includes valve body (1), rotates valve shaft (2) that sets up in valve body (1), fixed valve plate (3) that set up on valve shaft (2), fixed mounting pneumatic actuator (4) in valve body (1) top, valve shaft (2) are connected its characterized in that with pneumatic actuator (4): valve body (1) and valve plate (3) are connected through seal assembly, seal assembly is including cover to establish sealed pad (5), seal cover (6), gasbag cover (7), fixed mounting solenoid valve (8) on valve body (1) on valve plate (3), gasbag groove (9) have been seted up on valve body (1) inside wall, gasbag cover (7) insert gasbag groove (9) and contradict with valve body (1) and be connected, seal cover (6) cover is established on valve body (1) and gasbag cover (7) with valve body (1) and gasbag cover (7) fixed connection, gasbag cover (7) are connected with solenoid valve (8) through coupling assembling, sealed pad (5) are contradicted with seal cover (6) and gasbag cover (7) are in the state of aerifing when valve plate (3) are in the closed state.
2. A butterfly valve having a multi-layer seal according to claim 1, wherein: sealing rings (10) are fixedly arranged on the front side and the rear side of the sealing sleeve (6), sealing grooves (11) are formed in the sealing rings (10), and the front side wall and the rear side wall of the valve body (1) are fixedly connected with the side walls of the sealing grooves (11).
3. A butterfly valve having a multi-layer seal according to claim 2, wherein: the valve plate (3) is provided with a gasket placing groove (12), and the sealing gasket (5) is inserted into the gasket placing groove (12) to be fixedly connected with the valve plate (3).
4. A butterfly valve having a multi-layer seal according to claim 3, wherein: the connecting assembly comprises an upper support (13) fixedly arranged on the valve body (1) and an air pipe (14) fixedly arranged on the air bag sleeve (7), the electromagnetic valve (8) is fixedly arranged on the support (13), a pipe passing hole (15) is formed in the valve body (1) in a penetrating mode, and the air pipe (14) penetrates through the pipe passing hole (15) and then is connected with the electromagnetic valve (8).
5. A butterfly valve having a multi-layer seal according to claim 4, wherein: the thickness of the air bag sleeve (7) is larger than that of the valve plate (3).
6. A butterfly valve having a multi-layer seal according to claim 5, wherein: the valve body (1) is fixedly provided with a mounting ring (16) which is convenient to install.
7. A butterfly valve having a multi-layer seal according to claim 6, wherein: the sealing gasket (5) and the sealing sleeve (6) are made of nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322651254.7U CN220956863U (en) | 2023-09-27 | 2023-09-27 | Butterfly valve with multilayer sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322651254.7U CN220956863U (en) | 2023-09-27 | 2023-09-27 | Butterfly valve with multilayer sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956863U true CN220956863U (en) | 2024-05-14 |
Family
ID=91008355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322651254.7U Active CN220956863U (en) | 2023-09-27 | 2023-09-27 | Butterfly valve with multilayer sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956863U (en) |
-
2023
- 2023-09-27 CN CN202322651254.7U patent/CN220956863U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |