CN2315362Y - Pneumatic butterfly valve - Google Patents
Pneumatic butterfly valve Download PDFInfo
- Publication number
- CN2315362Y CN2315362Y CN 97220395 CN97220395U CN2315362Y CN 2315362 Y CN2315362 Y CN 2315362Y CN 97220395 CN97220395 CN 97220395 CN 97220395 U CN97220395 U CN 97220395U CN 2315362 Y CN2315362 Y CN 2315362Y
- Authority
- CN
- China
- Prior art keywords
- piston
- butterfly valve
- gear
- pneumatic
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000009966 trimming Methods 0.000 abstract 1
- 230000002950 deficient Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to a pneumatic butterfly valve, which is composed of a valve body and a pneumatic device. The pneumatic device comprises an end cover, an air cylinder, a piston, a rack bar and a gear. The piston, the rack bar and the gear are mutually linked. The gear is matched with a drive shaft arranged in the valve body. A trimming screw which is linked with the piston is arranged in the end cover of the pneumatic device. The utility model overcomes the defect that the closing position of a common pneumatic butterfly valve is nonadjustable. The utility model has the advantages of simple structure, good sealing performance and long service life.
Description
The utility model relates to a kind of Pneumatic butterfly valve.
Known various Pneumatic butterfly valve all is made of valve body and Pneumatic actuator, by the compression of gas in the cylinder in the Pneumatic actuator or the switching of release control valve lobe.The closed position of this Pneumatic butterfly valve is non-adjustable, therefore has poor sealing performance, the defective that the seal arrangement wearing and tearing are big, working life is short.
The purpose of this utility model is the above-mentioned defective that overcomes prior art, thereby a kind of simple in structure, can regulate closed position, the Pneumatic butterfly valve of good seal performance are provided.
The utility model is made of valve body and Pneumatic actuator, Pneumatic actuator comprises end cap, cylinder, piston, rack and pinion, interlock mutually between piston, rack and pinion, the transmission shaft in gear and the valve body matches, and is provided with the micrometer adjusting screw with the piston interlock in the end cap of Pneumatic actuator.
Further illustrate particular content of the present utility model below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1.
As shown in the figure, the utility model is made of valve body 1 and Pneumatic actuator 2, Pneumatic actuator comprises end cap 3, cylinder 4, piston 5, tooth bar 6 and gear 7, piston 5, tooth bar 6 and 7 interlocks mutually of gear, transmission shaft 8 in gear and the valve body 1 matches, and is provided with the micrometer adjusting screw 9 with piston 5 interlocks in the end cap 3 of Pneumatic actuator 2.Under user mode, in the closed position as flap 10, can regulate micrometer adjusting screw 9, by the interaction relation between piston 5, tooth bar 6, gear 7 and the transmission shaft 8, make flap 10 be in desirable closed position, then, begin to enter system works.
The utility model makes butterfly valve when closing by above-mentioned concrete structure, is in the optimum position, has Good seal performance, the wearing and tearing of hermetically-sealed construction are little, and the advantage of long service life is a kind of being worthy of popularization Pneumatic butterfly valve.
Claims (1)
1, a kind of Pneumatic butterfly valve is made of valve body and Pneumatic actuator, and Pneumatic actuator comprises end cap, cylinder, piston, rack and pinion, interlock mutually between piston, rack and pinion, and the transmission shaft in gear and the valve body matches, and it is characterized in that; In the end cap (3) of Pneumatic actuator (2), be provided with micrometer adjusting screw (9) with piston (5) interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97220395 CN2315362Y (en) | 1997-07-10 | 1997-07-10 | Pneumatic butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97220395 CN2315362Y (en) | 1997-07-10 | 1997-07-10 | Pneumatic butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2315362Y true CN2315362Y (en) | 1999-04-21 |
Family
ID=33936084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97220395 Expired - Fee Related CN2315362Y (en) | 1997-07-10 | 1997-07-10 | Pneumatic butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2315362Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361391A (en) * | 2018-04-26 | 2018-08-03 | 江苏通达船用阀泵有限公司 | Centre type pneumatic type butterfly valve peculiar to vessel |
-
1997
- 1997-07-10 CN CN 97220395 patent/CN2315362Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361391A (en) * | 2018-04-26 | 2018-08-03 | 江苏通达船用阀泵有限公司 | Centre type pneumatic type butterfly valve peculiar to vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |