CN203463768U - Diaphragm-type pneumatic actuator - Google Patents
Diaphragm-type pneumatic actuator Download PDFInfo
- Publication number
- CN203463768U CN203463768U CN201320479460.8U CN201320479460U CN203463768U CN 203463768 U CN203463768 U CN 203463768U CN 201320479460 U CN201320479460 U CN 201320479460U CN 203463768 U CN203463768 U CN 203463768U
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- China
- Prior art keywords
- diaphragm
- upper shell
- spring seat
- spring
- lower shell
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- Expired - Lifetime
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Abstract
The utility model discloses a diaphragm-type pneumatic actuator comprising a lower shell, a valve stem, an operating rod, a spring seat, a valve stem nut, a diaphragm plate and an upper shell. A lower beam used for supporting a spring is fixed below the lower shell, the upper shell and the lower shell are connected to form an actuating chamber, and a diaphragm is mounted at the joint of the upper shell and the lower shell, and the actuating chamber is divided into a pressured upper chamber and a pressureless lower chamber through the diaphragm. The diaphragm plate is connected and fixed below the diaphragm through a nut; the valve stem nut, the spring seat and the spring are arranged under the diaphragm plate sequentially from top to bottom; the operating rod is sleeved with the valve steam in a threaded connection manner, and fixedly clamped in the spring seat through a set screw; a push rod used for position indication is arranged in the middle of the upper shell. By the means, abrasion of a sealing mechanism can be reduced, sealing performance is improved, the requirements of actuation on a pressure source are decreased, the diaphragm-type pneumatic actuator is simple in structure, low in cost and convenient to maintain, and service life of the actuator is prolonged.
Description
Technical field
The utility model relates to technical field of petroleum extraction, particularly relates to a kind of diaphragm pneumatic driver.
Background technique
In prior art, driver is a kind of actuator that is applied to adopt defeated well head telecontrol valve switch action, at present, Oilfield using is sliding rod type or telescopic driving mechanism mostly, and stroke is long, poor sealing performance, the sealed member replacement cycle is short, maintenance period is short, increases maintenance cost, reduces oil recovery efficiency.
Model utility content
The technical problem that the utility model mainly solves is to provide a kind of diaphragm pneumatic driver, can reduce sealing mechanism wearing and tearing, increases sealability, reduce the requirement driving pressure source, simple in structure, with low cost, working life easy to maintenance, to improve driver.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of diaphragm pneumatic driver is provided, comprises: lower shell body, valve rod, operating stem, spring seat, Stem Mut, diaphragm plate and upper shell; The below of lower shell body fixes one for supporting the underbeam of spring, between upper shell and lower shell body, is connected to form actuator chamber, in the joint of upper shell and lower shell body, barrier film is housed, and barrier film is divided into epicoele with pressure and cavity of resorption not with pressure by actuator chamber; Diaphragm plate is fastened on the below of barrier film by nut; The below of diaphragm plate is disposed with Stem Mut, spring seat and spring from top to bottom; Operating stem is threaded connection mode and valve rod socket, and passes through Cock screw fixed clamp in spring seat; Upper shell middle part is provided with the push rod for position indication, and when suppressing in epicoele, attaching nut drives push rod down to move; When epicoele pressure release, spring promotes spring seat and drives push rod up to move.
In preferred embodiment of the utility model, the moment of torsion when reducing friction and reducing to install, is provided with several steel balls between described Stem Mut and spring seat.
In preferred embodiment of the utility model, described upper shell is provided with two interfaces, and one of them interface connects pressure source interface, and another interface is installed the bleeder valve of overvoltage protection.
The beneficial effects of the utility model are: the utility model is divided into epicoele with pressure and cavity of resorption not with pressure by integrated septum by the actuator chamber of driver, in the opening-closing process of valve, barrier film provides driving force by distortion, whole barrier film is all effective lifting surface area of pressure source, increased driving force, stop the pressure loss that sealing problem produces, reduced the requirement to pressure source, improved the life-span of driver.It is pneumatic driving execution pattern, has avoided the corrosion of surging and has washed away, and improves working life.
Accompanying drawing explanation
Fig. 1 is the inside sectional structure schematic diagram of the utility model diaphragm pneumatic driver.
In accompanying drawing, the mark of each parts is as follows: 1. underbeam, 2. spring, 3. lower shell body, 4. valve rod, 5. operating stem, 6. spring seat, 7. steel ball, 8. Stem Mut, 9. diaphragm plate, 10. barrier film, 11. upper shells, 12. attaching nuts, 13. push rods, 14. Decompression valvess.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made to more explicit defining.
Refer to Fig. 1, the utility model is embodiment comprise: a kind of diaphragm pneumatic driver, comprising: lower shell body 3, valve rod 4, operating stem 5, spring seat 6, Stem Mut 8, diaphragm plate 9 and upper shell 11; The below of lower shell body 3 fixes one for supporting the underbeam 1 of spring 2, between upper shell 11 and lower shell body 3, is connected to form actuator chamber, in the joint of upper shell 11 and lower shell body 3, barrier film 10 is housed, and barrier film 10 is divided into epicoele with pressure and cavity of resorption not with pressure by actuator chamber; Diaphragm plate 9 is fastened on the below of barrier film 10 by nut 12; The below of diaphragm plate 9 is disposed with Stem Mut 8, spring seat 6 and spring 2 from top to bottom; Operating stem 5 is threaded connection mode and valve rod 4 sockets, and passes through Cock screw fixed clamp in spring seat 6; Upper shell 11 middle parts are provided with the push rod 13 for position indication, and when suppressing in epicoele, attaching nut 12 drives push rod 13 down to move; When epicoele pressure release, spring 2 promotes spring seat 6 and drives push rod 13 up to move.
Furtherly, between described Stem Mut and spring seat, be provided with several steel balls 7; Described upper shell 11 is provided with two interfaces, and one of them interface is pressure source interface, and another interface is installed the bleeder valve 14 of overvoltage protection.
Working principle of the present utility model is as follows: in the time of need to opening, by the pressure source interface access air pressure of upper shell 11, air pressure promotes barrier film 10 distortion, promote diaphragm plate 9 downwards, by diaphragm plate 9 band flexible spring seats 6 and Stem Mut 8, moved downward, Stem Mut 8 and operating stem 5, valve rod 4 are connected, so band ovable valve stem 4 moves, complete valve opening one time.
In the time of need to closing, shed pressure source, spring 2 moves upward by spring band flexible spring seat 6, and spring seat 6 band ovable valve stems 4 move upward, and complete valve closes.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a diaphragm pneumatic driver, is characterized in that, comprising: lower shell body, valve rod, operating stem, spring seat, Stem Mut, diaphragm plate and upper shell; The below of lower shell body fixes one for supporting the underbeam of spring, between upper shell and lower shell body, is connected to form actuator chamber, in the joint of upper shell and lower shell body, barrier film is housed, and barrier film is divided into epicoele with pressure and cavity of resorption not with pressure by actuator chamber; Diaphragm plate is fastened on the below of barrier film by nut; The below of diaphragm plate is disposed with Stem Mut, spring seat and spring from top to bottom; Operating stem is threaded connection mode and valve rod socket, and passes through Cock screw fixed clamp in spring seat; Upper shell middle part is provided with the push rod for position indication, and when suppressing in epicoele, attaching nut drives push rod down to move; When epicoele pressure release, spring promotes spring seat and drives push rod up to move.
2. diaphragm pneumatic driver according to claim 1, is characterized in that: between described Stem Mut and spring seat, be provided with several steel balls.
3. diaphragm pneumatic driver according to claim 1, is characterized in that: described upper shell is provided with two interfaces, and one of them interface is pressure source interface, and another interface is installed the bleeder valve of overvoltage protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320479460.8U CN203463768U (en) | 2013-08-07 | 2013-08-07 | Diaphragm-type pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320479460.8U CN203463768U (en) | 2013-08-07 | 2013-08-07 | Diaphragm-type pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463768U true CN203463768U (en) | 2014-03-05 |
Family
ID=50176135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320479460.8U Expired - Lifetime CN203463768U (en) | 2013-08-07 | 2013-08-07 | Diaphragm-type pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382400A (en) * | 2015-07-28 | 2017-02-08 | 安徽红星阀门有限公司 | Adjustable water discharger |
-
2013
- 2013-08-07 CN CN201320479460.8U patent/CN203463768U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382400A (en) * | 2015-07-28 | 2017-02-08 | 安徽红星阀门有限公司 | Adjustable water discharger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230308 Address after: No. 16, Xihenggang Street, Yangchenghu Town, Xiangcheng District, Suzhou City, Jiangsu Province, 215000 Patentee after: Suzhou Dawson Drilling and Production Equipment Co.,Ltd. Address before: Taiping Road, Taiping Town, Suzhou, Jiangsu, Xiangcheng District Patentee before: SUZHOU DOUSON DRILLING & PRODUCTION EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |
|
| CX01 | Expiry of patent term |