CN221323313U - Butterfly valve with good sealing performance - Google Patents
Butterfly valve with good sealing performance Download PDFInfo
- Publication number
- CN221323313U CN221323313U CN202323422271.XU CN202323422271U CN221323313U CN 221323313 U CN221323313 U CN 221323313U CN 202323422271 U CN202323422271 U CN 202323422271U CN 221323313 U CN221323313 U CN 221323313U
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- CN
- China
- Prior art keywords
- valve body
- valve
- fixedly connected
- disc plate
- bevel gear
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- 238000007789 sealing Methods 0.000 title claims abstract description 47
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 8
- 239000011241 protective layer Substances 0.000 claims description 7
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 229920006168 hydrated nitrile rubber Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The utility model discloses a butterfly valve with good sealing performance, which comprises a valve body, wherein the top of the valve body is fixedly connected with a switch control device, a disc plate is rotatably connected inside the valve body, a rotating shaft is fixedly connected between the disc plate, a sealing ring is fixedly connected to the outer side of the disc plate, an air bag is fixedly connected to the outer side of the sealing ring, and a sealing agent is adhered between the outer side of the air bag and the inner wall of the valve body. According to the utility model, the sealing ring is arranged between the disc plate and the valve body, and the sealing ring is arranged in the concave shape, so that the disc plate can be clamped in the notch for sealing, meanwhile, the two sides of the sealing ring are gradually thinned, the fitting degree with the inner wall of the valve body is enhanced, the sealing performance is further enhanced, the adjustable air bag is arranged, the sealing ring can be tightly fitted with the disc plate, the normal use of the valve is not influenced, the sealing performance of the valve body is fully improved, the position of the communication cavity can be set according to actual conditions, and the applicability under different conditions is enhanced.
Description
Technical Field
The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with good sealing performance.
Background
The butterfly valve is called a flap valve, is a simple structure's governing valve, can be used to the butterfly valve of the on-off control of low pressure pipeline medium means that closure member (valve clack or butterfly plate) is the disc, rotates around the valve shaft and reaches a valve of opening and closing, and the main characteristics of butterfly valve are: the valve has the advantages of small operation moment, small installation space and light weight, simultaneously has good flow regulation function and closing sealing property, continuously expands the variety and quantity of used valves, and has high temperature, high pressure, large caliber, high sealing property, long service life and excellent regulation property, and the valve has multiple functions, and the reliability and other performance indexes of the valve reach higher levels.
Patent number CN218818208U among the prior art adopts the butterfly valve that publishes a leakproofness, including the valve pipe, the inner wall upside and the downside of valve pipe rotate and are connected with the cover that keysets and keysets down, it is connected with driven valve section of thick bamboo to go up the cover that keysets and keysets down to rotate between, driven valve section of thick bamboo's inside rotates and is connected with the drive valve shaft, driven valve section of thick bamboo's surface rotates respectively and is connected with first drive valve plate, second drive valve plate, first driven valve plate and second driven valve plate, drive valve plate groove has all been seted up to the terminal surface of first drive valve plate and second drive valve plate, driven valve plate groove has all been seted up to the terminal surface of first driven valve plate and second driven valve plate. This butterfly valve that leakproofness is good can drive first drive valve plate, second drive valve plate, first driven valve plate and second driven valve plate fast through rotating the drive valve shaft and rotate to open and close the valve pipe, thereby facilitate the use.
However, the prior art patents suffer from several drawbacks:
The patent in the prior art sets up and uses the drive valve plate groove and driven valve plate groove, and sets up first actuating arm and second actuating arm and utilizes the transfer pin to realize opening and shutting of drive valve plate and driven valve plate, can open or close from both sides through the butterfly valve plate that first drive valve plate, second drive valve plate, first driven valve plate and second driven valve plate are constituteed in order to improve the valve plate and receive the impact force of fluid, but the device can't guarantee the tightness between two valve plates and the device is very liable to cause the damage because of the impact of fluid;
In the prior art, gaps are easily generated by the driving arms between the valve plates, so that the tightness of the valve plates in the valve tube is reduced, and the valve plates cannot be tightly attached to the inner wall of the valve tube.
Disclosure of utility model
The technical problem to be solved by the utility model is to overcome the technical defects, and provide the butterfly valve which is simple in structure, convenient to use and good in sealing performance.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a butterfly valve that leakproofness is good, includes the valve body, valve body top fixed connection is equipped with switch control device, the inside rotation of valve body is connected and is equipped with the dish board, fixed connection is equipped with the pivot in the middle of the dish board, dish board outside fixed connection is equipped with the sealing washer, sealing washer outside fixed connection is equipped with the gasbag, the bonding is equipped with the sealant between gasbag outside and the valve body inner wall.
Furthermore, the sealing ring is concave in shape and the disc plate is movably clamped in the notch, and the sealing ring is made of HNBR hydrogenated nitrile rubber.
Further, the switch control device comprises a first bevel gear, the bottom of the first bevel gear is fixedly connected with the top end of the rotating shaft, a second bevel gear meshed with the first bevel gear is arranged on one side of the first bevel gear, and a control wheel is fixedly connected with one end of the second bevel gear.
Furthermore, a communication cavity is formed in one side of the valve body, the other end of the communication cavity is fixedly connected with the air bag, and the top of the communication cavity is hinged with a sealing cover.
Furthermore, the inner surface of the valve body is fixedly connected with protective layers on the front side and the rear side of the disc plate.
Furthermore, the protective layer comprises a corrosion-resistant layer, and the corrosion-resistant layer is made of polytetrafluoroethylene.
Further, the air bag is made of elastic materials, and the minimum expansion degree is consistent with the gap between the inner wall of the valve body and the disc plate.
Compared with the prior art, the utility model has the advantages that:
According to the utility model, the sealing ring is arranged between the disc plate and the valve body, and the sealing ring is arranged in a concave shape, so that the disc plate can be clamped in the notch for sealing, and meanwhile, the two sides of the sealing ring are gradually thinned, so that the fit degree with the inner wall of the valve body is enhanced, the sealing performance is further enhanced, and the problem of poor sealing performance caused by gaps between the disc plates is solved;
the adjustable air bag is arranged for sealing, so that the sealing ring and the butterfly plate can be tightly attached, normal use of the valve is not affected, the sealing performance of the valve body is fully improved, the air bag is operated by the communication cavity, the position of the communication cavity can be set according to actual conditions, and the applicability under different conditions is enhanced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic diagram of the overall structure of the present utility model.
Fig. 3 is a schematic view of a part of the structure of the present utility model.
Fig. 4 is a schematic diagram of a portion of the structure of the present utility model.
Fig. 5 is a schematic view of a portion of the structure of the present utility model.
As shown in the figure: 1. a valve body; 2. a dish plate; 201. a seal ring; 202. an air bag; 3. a rotating shaft; 4. a switch control device; 401. a first helical gear; 402. a helical gear II; 403. a control wheel; 5. a protective layer; 501. and a corrosion resistant layer.
Description of the embodiments
Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals.
It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
In order to make the contents of the present utility model more clearly understood, 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 to 5, a butterfly valve with good sealing performance comprises a valve body 1, wherein a switch control device 4 is fixedly connected to the top of the valve body 1, a disc plate 2 is rotatably connected inside the valve body 1, a rotating shaft 3 is fixedly connected in the middle of the disc plate 2, a sealing ring 201 is fixedly connected to the outer side of the disc plate 2, an air bag 202 is fixedly connected to the outer side of the sealing ring 201, and sealing agents are adhered between the outer side of the air bag 202 and the inner wall of the valve body 1.
The sealing ring 201 is concave in shape and the movable joint of the disc plate 2 is in the notch, the sealing ring 201 is made of HNBR hydrogenated nitrile rubber, the sealing ring is resistant to use and is not easy to deform, the sealing effect is not influenced by deformation, the switch control device 4 comprises a bevel gear I401, the bottom of the bevel gear I401 is fixedly connected with the top end of a rotating shaft 3, one side of the bevel gear I401 is provided with a bevel gear II 402 meshed with the bevel gear I, one end of the bevel gear II is fixedly connected with a control wheel 403, the rotating control wheel 403 drives the bevel gear II 402 to rotate, the bevel gear I401 is driven to rotate, the bevel gear I401 drives the rotating shaft 3 to synchronously rotate, the bottom of the rotating shaft 3 is rotationally connected with the valve body 1, the disc plate 2 is driven to rotate to a proper position, a communicating cavity is formed in one side of the valve body 1, the other end of the communicating cavity is fixedly connected with the air bag, the top of the communicating cavity is hinged with a sealing cover, the inner surface of the valve body 1 is fixedly connected with protective layers 5 on the front side and the rear side of the disc plate 2, the protective layers 5 comprise corrosion-resistant layers 501, the corrosion-resistant layers 501 are made of polytetrafluoroethylene, the air bags 202 are made of elastic materials, and the minimum expansion degree are required to be consistent with gaps between the inner wall of the valve body 1 and the disc plate 2, and the sealing effect is ensured.
In specific use, the user first installs the device to suitable position, use the control wheel 403 control switch, rotate the control wheel 403 and drive helical gear two 402 rotation, and then drive helical gear one 401 rotation, helical gear one 401 drives the synchronous rotation of pivot 3, pivot 3 bottom and valve body 1 rotate and are connected, drive dish board 2 when pivot 3 rotates and rotate to suitable position can, during the circulation, dish board 2 joint all around is in the notch of sealing washer 201, thereby the user aerifys gasbag 202 through the intercommunication chamber and realizes high leakproofness, and be equipped with inoxidizing coating 5 on the inner wall of valve body 1 of both sides around dish board 2, protect whole device using corrosion-resistant layer 501, increase of service life, it can reduce the problem of gap to bond the sealant between gasbag 202 and the valve body 1 inner wall, whole device sets up succinctly, the function is comprehensive, and convenient to use.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (7)
1. The utility model provides a butterfly valve that leakproofness is good, includes valve body (1), its characterized in that: valve body (1) top fixed connection is equipped with switch control device (4), valve body (1) inside rotates to connect and is equipped with dish board (2), fixed connection is equipped with pivot (3) in the middle of dish board (2), dish board (2) outside fixed connection is equipped with sealing washer (201), sealing washer (201) outside fixed connection is equipped with gasbag (202), the bonding is equipped with the sealant between gasbag (202) outside and valve body (1) inner wall.
2. The butterfly valve of claim 1 having a good seal, wherein: the sealing ring (201) is concave in shape, the disc plate (2) is movably clamped in the notch, and the sealing ring (201) is made of HNBR hydrogenated nitrile rubber.
3. The butterfly valve of claim 1 having a good seal, wherein: the switch control device (4) comprises a first bevel gear (401), the bottom of the first bevel gear (401) is fixedly connected with the top end of the rotating shaft (3), one side of the first bevel gear (401) is provided with a second bevel gear (402) meshed with the first bevel gear, and one end of the second bevel gear (402) is fixedly connected with a control wheel (403).
4. The butterfly valve of claim 1 having a good seal, wherein: the valve body (1) is provided with a communication cavity on one side, the other end of the communication cavity is fixedly connected with the air bag, and the top of the communication cavity is hinged with a sealing cover.
5. The butterfly valve of claim 1 having a good seal, wherein: the inner surface of the valve body (1) is fixedly connected with protective layers (5) on the front side and the rear side of the disc plate (2).
6. The butterfly valve of claim 5 having a good seal, wherein: the protective layer (5) comprises a corrosion-resistant layer (501), and the corrosion-resistant layer (501) is made of polytetrafluoroethylene.
7. The butterfly valve of claim 1 having a good seal, wherein: the air bag (202) is made of elastic materials, and the minimum expansion degree is consistent with the gap between the inner wall of the valve body (1) and the disc plate (2).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221323313U true CN221323313U (en) | 2024-07-12 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |