CN204573298U - A kind of Pneuamtic actuator for valve - Google Patents
A kind of Pneuamtic actuator for valve Download PDFInfo
- Publication number
- CN204573298U CN204573298U CN201520271971.XU CN201520271971U CN204573298U CN 204573298 U CN204573298 U CN 204573298U CN 201520271971 U CN201520271971 U CN 201520271971U CN 204573298 U CN204573298 U CN 204573298U
- Authority
- CN
- China
- Prior art keywords
- eccentric bushing
- thread bush
- clamping block
- worm
- lock shaft
- 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
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model proposes a kind of Pneuamtic actuator for valve, comprise base and casing, also comprise worm sector, worm screw, worm shaft, rotate handwheel, eccentric bushing, be connected to the manual switchover handle of eccentric bushing and eccentric bushing carried out to the locking device of locking position, casing arranges thread bush, thread bush is screwed on casing, locking device comprises lock shaft, lock shaft is through thread bush and the clamping block that end setting is butted on eccentric bushing is supported in its end, the Compress Spring driving lock shaft to be butted on eccentric bushing is set in thread bush, eccentric bushing arranges the cooperation locking slot corresponding with clamping block, the outer end of lock shaft is provided with operation unit, the interior edge face of operation unit is arranged relative to extracting indent on lock shaft direction, the end face of clamping block is the inner concave arc surface structure corresponding with eccentric bushing circumferential side wall, clamping block is also arranged and is convenient to it and stretches to guiding in thread bush lonely face structure, its structure of the utility model is more reasonable, can use by convenient operation.
Description
Technical field
The utility model relates to a kind of Pneuamtic actuator for valve.
Background technique
Pneumatic actuator generally comprises casing, is connected to the base of Pneumatic actuator, worm sector, worm screw is provided with in casing, this worm screw can intermittently realize coordinating with worm sector under the cooperation of eccentric, casing is also arranged the position limit pin that eccentric is fixed, worm screw is arranged on worm shaft and the end of worm shaft arranges rotation handwheel, pneumatic actuator is generally used for and coordinates Pneumatic actuator to realize conbined usage, is applicable to butterfly valve that rotation 90 opens, ball valve, stopcock realize manual drives or pneumatic drive.There is the features such as volume is little, lightweight, reasonable in design.Worm sector connect in have in vain be separated by 90 two keyways, select this device with the relative position of valve body as required to facilitate user.Mention position limit pin, 180 °, rotating eccentricity device, position limit pin automatic spacing, realizes pneumatic; Otherwise, realize manually.The bottom surface of pneumatic actuator is connected with valve in use, and base is connected with cylinder, and valve shaft and worm sector inner hole pass, and valve shaft end four directions coordinates with cylinder square hole.When pneumatic drive, cylinder drives valve shaft, and worm gear is with turning.During manual drives, worm and wheel engages, and drive valve shaft to rotate, cylinder piston is also servo-actuated.
Model utility content
Based on the problems referred to above, the utility model object is to provide a kind of Pneuamtic actuator for valve, and its structure is more reasonable, can use by convenient operation.
For above problem, provide following technological scheme: a kind of Pneuamtic actuator for valve, comprise base and casing and both are bolted, also be included in the worm sector that casing is rotatably arranged, worm screw, worm shaft, be connected to the rotation handwheel of worm shaft outer end, eccentric bushing is connected to worm shaft and the eccentric bushing rotatably arranged relative to casing, be connected to the manual switchover handle of eccentric bushing and eccentric bushing carried out to the locking device of locking position, it is characterized in that: described casing arranges thread bush, thread bush is screwed on casing, described locking device comprises lock shaft, lock shaft is through thread bush and the clamping block that end setting is butted on eccentric bushing is supported in its end, the Compress Spring driving lock shaft to be butted on eccentric bushing is set in thread bush, eccentric bushing arranges the cooperation locking slot corresponding with clamping block, the outer end of lock shaft is provided with operation unit, the interior edge face of operation unit is arranged relative to extracting indent on lock shaft direction, described Compress Spring is between clamping block and thread bush, the end face of clamping block is the inner concave arc surface structure corresponding with eccentric bushing circumferential side wall, clamping block is also arranged and is convenient to it and stretches to curved guiding surface structure in thread bush.
The utility model is also set to further, and described worm set is connected to worm shaft and its two ends are fixed on worm screw by pin.
The beneficial effects of the utility model, when the indent of interior edge face is arranged on and in emergency circumstances extracts locking device operation, there is higher stability, convenient operation, extracting locking device in addition, when rotation manual switches handle, the inner concave arc surface structure of clamping block well can coordinate with the circumferential side wall of eccentric bushing and contacts, and can not produce frictional loss; The setting of curved guiding surface structure on clamping block, when extracting locking device, clamping block can realize leading with thread bush inwall easily and coordinate, and has higher operational stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the longitudinal sectional view of Pneuamtic actuator for valve in the utility model embodiment;
Fig. 2 is the structural representation of the transverse sectional view of Pneuamtic actuator for valve in the utility model embodiment;
Fig. 3 is that in the utility model embodiment, clamping block is placed in the structural representation coordinated in locking slot;
Fig. 4 is the structural representation that in the utility model embodiment, clamping block is butted on eccentric bushing.
Number in the figure implication: 1-base; 2-worm sector; 3-casing; 4-worm screw; 5-rotates handwheel; 6-manual switchover handle; 7-eccentric bushing; 71-locking slot; 8-worm shaft; 9-locking device; 91-operation unit; 91a-interior edge face; 92-lock shaft; 93-clamping block; 93a-inner concave arc surface structure; 93b-curved guiding surface structure; 94-spring; 10-thread bush; 11-pin.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
A kind of Pneuamtic actuator for valve as shown in Figures 1 to 4, comprise base 1 and casing 3 and both are bolted, also be included in the worm sector 2 that casing 3 is rotatably arranged, worm screw 4, worm shaft 8, be connected to the rotation handwheel 5 of worm shaft 8 outer end, eccentric bushing 7 is connected to worm shaft 8 and the eccentric bushing 7 rotatably arranged relative to casing 3, be connected to the manual switchover handle 6 of eccentric bushing 7 and eccentric bushing 7 carried out to the locking device 9 of locking position, worm screw 4 is socketed on worm shaft 8 and its two ends are fixed on worm screw 4 by pin 11, casing 3 also arranges thread bush 10, thread bush 10 is screwed on casing 3, described locking device 9 comprises lock shaft 92, lock shaft 92 is through thread bush 10 and the clamping block 93 that end setting is butted on eccentric bushing 7 is supported in its end, the Compress Spring 94 driving lock shaft 92 to be butted on eccentric bushing 7 is set in thread bush 10, eccentric bushing 7 arranges the cooperation locking slot 71 corresponding with clamping block 93, the outer end of lock shaft 92 is provided with operation unit 91, the interior edge face 91a of operation unit 91 is arranged relative to extracting indent on lock shaft 92 direction, the indent of interior edge face is arranged in emergency circumstances extracts lock shaft 92 when operating, there is higher stability, convenient operation, described Compress Spring 94 is between clamping block 93 and thread bush 10, the end face of clamping block 93 is the inner concave arc surface structure 93a corresponding with eccentric bushing 7 circumferential side wall, extracting lock shaft 92, when rotation manual switches handle 6, the inner concave arc surface structure 93a of clamping block 93 well can coordinate with the circumferential side wall of eccentric bushing 7 and contacts, and frictional loss can not be produced, clamping block 93 is also arranged and is convenient to it and stretches to curved guiding surface structure 93b in thread bush 10, when extracting lock shaft 92, clamping block 93 can realize leading with thread bush 10 inwall easily and coordinate, there is higher operational stability.The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improvement of above-mentioned hypothesis and modification also should be considered as protection domain of the present utility model.
Claims (2)
1. a Pneuamtic actuator for valve, comprise base and casing and both are bolted, also be included in the worm sector that casing is rotatably arranged, worm screw, worm shaft, be connected to the rotation handwheel of worm shaft outer end, eccentric bushing is connected to worm shaft and the eccentric bushing rotatably arranged relative to casing, be connected to the manual switchover handle of eccentric bushing and eccentric bushing carried out to the locking device of locking position, it is characterized in that: described casing arranges thread bush, thread bush is screwed on casing, described locking device comprises lock shaft, lock shaft is through thread bush and the clamping block that end setting is butted on eccentric bushing is supported in its end, the Compress Spring driving lock shaft to be butted on eccentric bushing is set in thread bush, eccentric bushing arranges the cooperation locking slot corresponding with clamping block, the outer end of lock shaft is provided with operation unit, the interior edge face of operation unit is arranged relative to extracting indent on lock shaft direction, described Compress Spring is between clamping block and thread bush, the end face of clamping block is the inner concave arc surface structure corresponding with eccentric bushing circumferential side wall, clamping block is also arranged and is convenient to it and stretches to curved guiding surface structure in thread bush.
2. a kind of Pneuamtic actuator for valve according to claim 1, is characterized in that: described worm set is connected to worm shaft and its two ends are fixed on worm screw by pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520271971.XU CN204573298U (en) | 2015-04-27 | 2015-04-27 | A kind of Pneuamtic actuator for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520271971.XU CN204573298U (en) | 2015-04-27 | 2015-04-27 | A kind of Pneuamtic actuator for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204573298U true CN204573298U (en) | 2015-08-19 |
Family
ID=53865935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520271971.XU Expired - Fee Related CN204573298U (en) | 2015-04-27 | 2015-04-27 | A kind of Pneuamtic actuator for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204573298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240481A (en) * | 2018-03-17 | 2018-07-03 | 江苏神通阀门股份有限公司 | A kind of limiting instruction structure of the remote transmission device of teletransmission butterfly valve |
| CN108413114A (en) * | 2018-04-27 | 2018-08-17 | 北京机科国创轻量化科学研究院有限公司 | Actuator |
-
2015
- 2015-04-27 CN CN201520271971.XU patent/CN204573298U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240481A (en) * | 2018-03-17 | 2018-07-03 | 江苏神通阀门股份有限公司 | A kind of limiting instruction structure of the remote transmission device of teletransmission butterfly valve |
| CN108413114A (en) * | 2018-04-27 | 2018-08-17 | 北京机科国创轻量化科学研究院有限公司 | Actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20170427 |