CN213575596U - Pneumatic butterfly valve - Google Patents
Pneumatic butterfly valve Download PDFInfo
- Publication number
- CN213575596U CN213575596U CN202022461017.0U CN202022461017U CN213575596U CN 213575596 U CN213575596 U CN 213575596U CN 202022461017 U CN202022461017 U CN 202022461017U CN 213575596 U CN213575596 U CN 213575596U
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- Prior art keywords
- valve
- rod
- pneumatic actuator
- bevel gear
- fixing frame
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- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000009966 trimming Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000005034 decoration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model relates to a pneumatic butterfly valve, which comprises a valve seat, a valve body, a valve plate, a valve cover, an upper valve rod, a lower valve rod, a pneumatic actuator and an adjusting mechanism; the adjusting mechanism is fastened at the upper end of the pneumatic actuator through a fixing frame bolt, a movable transmission rod penetrates through the side wall of one end of the fixing frame, a first bevel gear is arranged at one end, close to the upper valve rod, of the transmission rod, a manual rotating wheel is arranged at the other end of the transmission rod, and an elastic part is arranged between the manual rotating wheel and the outer wall of the fixing frame; the other end of the upper valve rod extends out of the pneumatic actuator and is fixedly sleeved with a second bevel gear matched with the first bevel gear; the valve can manually control the opening and closing state of the butterfly valve, has high reliability and can deal with inconvenience caused by emergency; through set up sealing bush and sealed the pad in the position that valve rod, valve plate and valve body contacted and mutually support down sealing performance effectual, liquid is difficult for the seepage and simple structure, and is with low costs.
Description
Technical Field
The utility model relates to a butterfly valve technical field especially relates to a pneumatic butterfly valve.
Background
The pneumatic butterfly valve consists of a pneumatic actuator and a butterfly valve. The pneumatic butterfly valve is opened and closed by a circular butterfly plate rotating along with a valve rod to realize the pneumatic valve which starts to act, is mainly used as a cut-off valve, can also be designed to have the function of adjusting or adjusting a section valve, and is increasingly used on low-pressure large-caliber and medium-caliber pipelines.
The existing pneumatic butterfly valve is opened and closed by driving a butterfly plate to rotate by a pneumatic actuator, but when the pneumatic actuator stops in the actual use process, effective measures cannot be timely taken to control the opening and closing state of the butterfly valve, the reliability is not high, and inconvenience cannot be caused by emergency; and the traditional butterfly valve has poor sealing performance at the contact position of the valve rod, the valve plate and the valve body.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a pneumatic butterfly valve.
The utility model discloses a realize through following technical scheme:
a pneumatic butterfly valve comprises a valve seat, a valve body, a valve plate, a valve cover, an upper valve rod, a lower valve rod, a pneumatic actuator and an adjusting mechanism; the valve seat is fixedly connected to the bottom of the valve body, the valve plate is arranged in the valve body, the valve cover is fixedly connected to the top of the valve body, and the pneumatic actuator is fastened to the upper end of the valve cover through a bolt; the rotatable upper valve rod vertically penetrates through the pneumatic actuator, the valve cover and the rear tail end of the valve body and is detachably connected with the top of the valve plate through threads; the adjusting mechanism is fastened at the upper end of the pneumatic actuator through a fixing frame bolt, a movable transmission rod penetrates through the side wall of one end of the fixing frame, a first bevel gear is arranged at one end, close to the upper valve rod, of the transmission rod, a manual rotating wheel is arranged at the other end of the transmission rod, and elastic pieces with equal elasticity are arranged between the manual rotating wheel and the outer wall of the fixing frame and between the manual rotating wheel and the inner wall of the fixing frame of the first bevel gear respectively; the other end of the upper valve rod extends out of the pneumatic actuator and is fixedly sleeved with a second bevel gear matched with the first bevel gear; the inside detachable lower valve rod that sets up of disk seat, the top rotatable coupling of lower valve rod is in the bottom of valve plate.
According to the technical scheme, preferably, the top end of the upper valve rod extends out of the fixing frame and is in threaded connection with the communicator, and the communicator is fastened at the upper end of the fixing frame through bolts.
According to the technical scheme, preferably, the pneumatic actuator is provided with a fine adjustment screw, an air inlet port, an air outlet port and a flow display.
According to above-mentioned technical scheme, preferably, go up valve rod and lower valve rod and overlap in the partial outer circumference cover of valve body inner chamber and be equipped with seal bush, the valve body inner wall is equipped with sealed the pad, the outer periphery of valve plate is equipped with the sealing ring with sealed crowded mutually.
According to the technical scheme, preferably, a group of circular flange holes are respectively formed in the left end and the right end of the valve seat and the valve cover.
The utility model has the advantages that: when the pneumatic actuator is stopped, the opening and closing state of the butterfly valve can be manually controlled by matching the bevel gear of the adjusting mechanism, the reliability is high, and inconvenience caused by emergency can be solved; through set up sealing bush and sealed the pad in the position that valve rod, valve plate and valve body contacted and mutually support down sealing performance effectual, liquid is difficult for the seepage and simple structure, and is with low costs.
Drawings
Fig. 1 shows a schematic front view structure diagram of an embodiment of the present invention.
In the figure: 1. a valve seat; 2. a valve body; 3. a valve plate; 4. a valve cover; 5. an upper valve stem; 6. a lower valve stem; 7. a pneumatic actuator; 8. an adjustment mechanism; 9. a transmission rod; 10. a first bevel gear; 11. a manual runner; 12. an elastic member; 13. a second bevel gear; 14. a message-back device; 15. fine adjustment of screws; 16. An air inlet port; 17. an air outlet port; 18. a flow display; 19. a seal bushing; 20. a gasket; 21. a seal ring; 22. and (4) flange holes.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, the utility model relates to a pneumatic butterfly valve, which comprises a valve seat 1, a valve body 2, a valve plate 3, a valve cover 4, an upper valve rod 5, a lower valve rod 6, a pneumatic actuator 7 and an adjusting mechanism 8; the valve seat 1 is fixedly connected to the bottom of the valve body 2, the valve plate 3 is arranged inside the valve body 2, the valve cover 4 is fixedly connected to the top of the valve body 2, and the pneumatic actuator 7 is fastened to the upper end of the valve cover 4 through bolts; the rotatable upper valve rod 5 vertically penetrates through the pneumatic actuator 7, the valve cover 4 and the valve body 2, and the rear end of the rotatable upper valve rod is detachably connected with the top of the valve plate 3 through threads; the adjusting mechanism 8 is fastened at the upper end of the pneumatic actuator 7 through a fixing frame bolt, a movable transmission rod 9 penetrates through the side wall of one end of the fixing frame, a first bevel gear 10 is arranged at one end, close to the upper valve rod 5, of the transmission rod 9, a manual rotating wheel 11 is arranged at the other end of the transmission rod 9, and elastic pieces 12 with equal elasticity are arranged between the manual rotating wheel 11 and the outer wall of the fixing frame and between the inner wall of the fixing frame of the first bevel gear 10; the other end of the upper valve rod 5 extends out of the pneumatic actuator 7 and is fixedly sleeved with a second bevel gear 13 matched with the first bevel gear 10; the detachable lower valve rod 6 is arranged in the valve seat 1, and the top of the lower valve rod 6 is rotatably connected into the bottom of the valve plate 3.
Further, the top end of the upper valve rod 5 extends out of the fixing frame and is in threaded connection with a transponder 14, the transponder 14 is fastened at the upper end of the fixing frame through bolts, and the valve transponder is a field instrument for automatic valve position and signal feedback; principle of valve transponder: the valve signal transmitter makes the transmission shaft rotate through the coaxial connector or the feedback rod, and the cam touches the micro switch, so that the contact of the switch component is closed or opened, the switching value signal is transmitted to the outside through the wiring terminal, and the switching value signal is displayed through the indicator.
Furthermore, the pneumatic actuator 7 is provided with a fine adjustment screw 15, an air inlet port 16, an air outlet port 17 and a flow display 18, and the butterfly valve can be known whether to be completely closed or not according to the value of the flow display 18 and can be adjusted within a range of plus and minus four degrees.
Further, go up valve rod 5 and lower valve rod 6 and overlap at the partial outer circumference of 2 inner chambers of valve body's the cover and be equipped with seal bush 19, protect with seal bush 19, prevent that the large granule thing in the medium from getting into valve rod 5 and lower valve rod 6 hole, be equipped with sealed pad 20 between 2 inner walls of valve body and the 3 outer circumferences of valve plate, 2 inner walls of valve body are equipped with sealed pad 20, the 3 outer circumferences of valve plate be equipped with sealed pad 20 extruded sealing ring 21 mutually, ensure valve plate 3 and 2 sealing connection of valve body, sealed effect is better, the difficult seepage of liquid.
Further, a set of circular shape flange hole 21 has been seted up respectively at both ends about disk seat 1 and valve gap 4, makes the utility model discloses an applicability is wider, can adapt to multiple connection standard.
When in use, the pneumatic actuator 7 is driven to operate to drive the upper valve rod 5 to rotate by externally connecting pneumatic equipment through the air inlet port 16 and the air outlet port 17; when the pneumatic actuator 7 is stopped, the manual rotating wheel 11 of the adjusting mechanism 8 can push the extrusion elastic part 12 to enable the first bevel gear 10 at the end part of the transmission rod 9 to be matched with the second bevel gear 13 to manually control the opening and closing state of the butterfly valve, and the elastic part 12 is arranged when the pneumatic actuator is not used at ordinary times, so that the first bevel gear 10 is not contacted with the second bevel gear 13.
The utility model has the advantages that: when the pneumatic actuator is stopped, the opening and closing state of the butterfly valve can be manually controlled by matching the bevel gear of the adjusting mechanism, the reliability is high, and inconvenience caused by emergency can be solved; through set up sealing bush and sealed the pad in the position that valve rod, valve plate and valve body contacted and mutually support down sealing performance effectual, liquid is difficult for the seepage and simple structure, and is with low costs.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A pneumatic butterfly valve is characterized by comprising a valve seat (1), a valve body (2), a valve plate (3), a valve cover (4), an upper valve rod (5), a lower valve rod (6), a pneumatic actuator (7) and an adjusting mechanism (8); the valve seat (1) is fixedly connected to the bottom of the valve body (2), the valve plate (3) is arranged inside the valve body (2), the valve cover (4) is fixedly connected to the top of the valve body (2), and the pneumatic actuator (7) is fastened to the upper end of the valve cover (4) through bolts; the rotatable upper valve rod (5) vertically penetrates through the pneumatic actuator (7), the valve cover (4) and the valve body (2), and the rear end of the rotatable upper valve rod is detachably connected with the top of the valve plate (3) through threads; the adjusting mechanism (8) is fastened at the upper end of the pneumatic actuator (7) through a fixing frame bolt, a movable transmission rod (9) penetrates through the side wall of one end of the fixing frame, a first bevel gear (10) is arranged at one end, close to the upper valve rod (5), of the transmission rod (9), a manual rotating wheel (11) is arranged at the other end of the transmission rod (9), and elastic pieces (12) with equal elasticity are respectively arranged between the manual rotating wheel (11) and the outer wall of the fixing frame and between the fixing frame inner wall of the first bevel gear (10); the other end of the upper valve rod (5) extends out of the pneumatic actuator (7) and is fixedly sleeved with a second bevel gear (13) matched with the first bevel gear (10); the valve seat is characterized in that a detachable lower valve rod (6) is arranged inside the valve seat (1), and the top of the lower valve rod (6) is rotatably connected into the bottom of the valve plate (3).
2. A pneumatic butterfly valve according to claim 1, characterised in that the top end of the upper valve stem (5) protrudes outside the mounting frame and is threadedly connected with a transponder (14), the transponder (14) being fastened to the upper end of the mounting frame by means of bolts.
3. A pneumatic butterfly valve according to claim 2, characterised in that the pneumatic actuator (7) is provided with a trimming screw (15), an inlet port (16), an outlet port (17) and a flow display (18).
4. A pneumatic butterfly valve according to claim 3, characterised in that sealing bushes (19) are provided between the upper and lower valve shaft holes of the inner cavity of the valve body (2) and the upper and lower valve shaft holes of the valve plate (3), a sealing gasket (20) is provided on the inner wall of the valve body (2), and a sealing ring (21) is provided on the outer circumferential surface of the valve plate (3) to be pressed against the sealing gasket (20).
5. A pneumatic butterfly valve according to claim 4, characterised in that said valve seat (1) and said valve cover (4) are provided, at the left and right ends thereof, with a set of circular flange holes (22), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022461017.0U CN213575596U (en) | 2020-10-30 | 2020-10-30 | Pneumatic butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022461017.0U CN213575596U (en) | 2020-10-30 | 2020-10-30 | Pneumatic butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213575596U true CN213575596U (en) | 2021-06-29 |
Family
ID=76531445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022461017.0U Expired - Fee Related CN213575596U (en) | 2020-10-30 | 2020-10-30 | Pneumatic butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213575596U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321405A (en) * | 2022-01-26 | 2022-04-12 | 石志生 | Pneumatic butterfly valve |
| CN115962290A (en) * | 2022-12-11 | 2023-04-14 | 江苏明江阀业有限公司 | Pneumatic full-lining butterfly valve with high safety and use method thereof |
| CN117212280A (en) * | 2023-10-26 | 2023-12-12 | 上海安居乐环保科技股份有限公司 | Quick synchronous reversing valve |
-
2020
- 2020-10-30 CN CN202022461017.0U patent/CN213575596U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321405A (en) * | 2022-01-26 | 2022-04-12 | 石志生 | Pneumatic butterfly valve |
| CN115962290A (en) * | 2022-12-11 | 2023-04-14 | 江苏明江阀业有限公司 | Pneumatic full-lining butterfly valve with high safety and use method thereof |
| CN115962290B (en) * | 2022-12-11 | 2023-11-14 | 江苏明江阀业有限公司 | Pneumatic full-lining butterfly valve with high safety and use method thereof |
| CN117212280A (en) * | 2023-10-26 | 2023-12-12 | 上海安居乐环保科技股份有限公司 | Quick synchronous reversing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210629 |