CN2353997Y - Pneumatic valve actuator - Google Patents
Pneumatic valve actuator Download PDFInfo
- Publication number
- CN2353997Y CN2353997Y CN 98249149 CN98249149U CN2353997Y CN 2353997 Y CN2353997 Y CN 2353997Y CN 98249149 CN98249149 CN 98249149 CN 98249149 U CN98249149 U CN 98249149U CN 2353997 Y CN2353997 Y CN 2353997Y
- Authority
- CN
- China
- Prior art keywords
- piston
- crank
- utility
- model
- link rod
- 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
Images
Landscapes
- Mechanically-Actuated Valves (AREA)
- Actuator (AREA)
- Transmission Devices (AREA)
Abstract
The utility model relates to a pneumatic valve actuator. The utility model is mainly characterized in that a link rod is made into a bending shape, a crank is made into a rhomb shape having a round corner, the two sides of the inside of a cylinder are respectively provided with a piston, the center of the inner side of each piston is fixedly provided with a connecting ear and the connecting ears on the pistons and the crank are hinged with the link rod by column pins. The utility model has the advantages of reasonable design, small size, large output torque, no dead point, low precision requirement for parts and easy processing and is a practical valve control device.
Description
The utility model belongs to valve actuator, particularly relates to a kind of pneumatic valve final controlling element.
The pneumatic valve final controlling element that on industries such as oil, chemical industry, electric power, uses at present, a kind of is gear, rack structure, another kind is the shift fork structure.The pneumatic valve final controlling element of gear ﹠ rack structure, as easy as rolling off a log at the joint gas blowby because the non-central location that is arranged on piston of tooth bar when pneumatic, makes tilting of the piston easily if piston and tooth bar are two bodies, and output torque is little.The pneumatic valve final controlling element of shift fork structure, because the simple moving linearly of piston rod when two limit positions, produces the dead point because of component is excessive, output torque is also very little, uses very inconvenient.
The purpose of this utility model is to provide a kind of good seal, and output torque is big, easy-to-use pneumatic valve final controlling element.
The utility model is realized with following technological scheme: link rod is made as crooked shape, and crank is made as the rhombus of fillet, and the inboard center of the piston that be equipped with both sides in cylinder installs engaging lug, passes through the hinged link rod of straight pin between engaging lug on the piston and the crank.
The utility model has following accompanying drawing:
Fig. 1 is a cross-sectional view of the present utility model.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
Therefore in order to overcome the pneumatic valve final controlling element of gear ﹠ rack structure, stress during operation is undesirable, makes tilting of the piston easily, and shortcomings such as joint gas blowby are made the crank in the utility model 2 rhombus of fillet, and link rod 3 is made crooked shape.The piston 5 of band O RunddichtringO 7 is equipped with in both sides in cylinder 4, and the inboard center of piston installs engaging lug 9, and output shaft 1 is contained on the crank 2 by key 8, the two ends of crank 2 respectively with piston on engaging lug by straight pin 6 hinged link rods.When piston 5 moves in cylinder, by link rod 3 crank 2 is rotated, and drive the output shaft rotation by key 8, valve also rotates thereupon.When the air inlet of B air chamber, two-piston is stretched out to both sides, makes crank drive output shaft by link rod 3 and moves counterclockwise, and valve also rotates counterclockwise.During the air inlet of A air chamber, two-piston is to the centre and lean on, and crank drives output shaft and moves clockwise, and valve also clockwise rotates, thereby realizes purpose that valve is controlled automatically.
The utility model reasonable in design, volume is little, changed in the pneumatic valve final controlling element of gear, tooth bar and shift fork structure, be directly changed into the pattern of circular movement by straight line motion, but carry out the transition to curvilinear motion simultaneously by crooked link rod is straight-line, therefore, the utility model does not have the dead point, is convenient to manually-operable.Simultaneously, owing to made full use of the bulk of cylinder, the crank arm of force increases, and under the piston diameter same case, output torque increases, and the piston linear stroke distances shortens.In addition, less demanding to part processing precision, make easily.
Claims (1)
1. pneumatic valve final controlling element, mainly form by cylinder, piston, crank, link rod, output shaft, it is characterized in that: link rod is made as crooked shape, crank is made as the rhombus of fillet, the inboard center of the piston that be equipped with both sides in cylinder installs engaging lug, passes through the hinged link rod of straight pin between engaging lug on the piston and the crank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249149 CN2353997Y (en) | 1998-12-07 | 1998-12-07 | Pneumatic valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249149 CN2353997Y (en) | 1998-12-07 | 1998-12-07 | Pneumatic valve actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2353997Y true CN2353997Y (en) | 1999-12-15 |
Family
ID=33993984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98249149 Expired - Fee Related CN2353997Y (en) | 1998-12-07 | 1998-12-07 | Pneumatic valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2353997Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553071A (en) * | 2019-09-04 | 2019-12-10 | 刘进取 | Gas pressure reducing valve |
-
1998
- 1998-12-07 CN CN 98249149 patent/CN2353997Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553071A (en) * | 2019-09-04 | 2019-12-10 | 刘进取 | Gas pressure reducing valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2821162Y (en) | Cylindrical pneumatic engine | |
| CN2353997Y (en) | Pneumatic valve actuator | |
| CN2182268Y (en) | Piston diesel locomotive | |
| CN101105223A (en) | Crank-connecting rod mechanism | |
| CN2606199Y (en) | Compressor | |
| CN201110360Y (en) | Novel crank connecting-rod mechanism | |
| CN2627240Y (en) | Piston type eccentric compressor | |
| CN201045324Y (en) | Hydraulic lever engines | |
| CN2687353Y (en) | Internal-rack push intermittent gear internal combustion engine | |
| CN2469183Y (en) | Rotary type engine | |
| CN2241804Y (en) | Opening and closing drive device for pneumatic reciprocating valve | |
| CN2341797Y (en) | Driver of press | |
| CN201068807Y (en) | Diamond-type rotor engine | |
| CN2178806Y (en) | Novel swayed vat | |
| CN2679440Y (en) | Rotary directional valve | |
| CN200989244Y (en) | Opposed-sealed cavity internal combustion engine | |
| CN214007254U (en) | Crankshaft vertical type valve actuating mechanism | |
| CN203925936U (en) | The break-in mainshaft mechanism of circulating break-in speed change vacuum compressor break-in main shaft device | |
| CN2628779Y (en) | Pneumatic flexible torsional joint | |
| CN213541144U (en) | Dustproof construction in nitrogen gas spring | |
| CN2515488Y (en) | Double-piston double-guide bar pneumatic actuator | |
| CN2399523Y (en) | Piston type gas compressor | |
| CN2711434Y (en) | Joint angle fixed reciprocative rotation driven annular cylinder | |
| CN2769547Y (en) | Double-plunger hand-operated pump | |
| CN220186002U (en) | Shifting fork type pneumatic and hydraulic linkage actuator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Hu Yucheng Document name: Notification of Termination of Patent Right |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Hu Yucheng Document name: Notice of acceptance of the petition for invalidation |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Hu Yucheng Document name: payment instructions |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Hu Yucheng Document name: Decision of the request for invalidation |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Hu Yucheng Document name: Notification of Termination of Patent Right |
|
| 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 |