CN201836510U - Normally open pneumatic diaphragm actuator of valve - Google Patents
Normally open pneumatic diaphragm actuator of valve Download PDFInfo
- Publication number
- CN201836510U CN201836510U CN2010206038739U CN201020603873U CN201836510U CN 201836510 U CN201836510 U CN 201836510U CN 2010206038739 U CN2010206038739 U CN 2010206038739U CN 201020603873 U CN201020603873 U CN 201020603873U CN 201836510 U CN201836510 U CN 201836510U
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- China
- Prior art keywords
- diaphragm
- push rod
- spring
- valve
- membrane cover
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- Expired - Fee Related
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Abstract
The utility model discloses a normally open pneumatic diaphragm actuator of a valve. The normally open pneumatic diaphragm actuator comprises a bracket which is provided with a diaphragm body, and is characterized in that: the diaphragm body consists of a lower diaphragm cover and an upper diaphragm cover which are detachably connected with each other, a diaphragm cavity is formed between the lower diaphragm cover and the upper diaphragm cover, a diaphragm is arranged in the diaphragm cavity; a spring is arranged in the diaphragm cavity; the upper end and the lower end of the spring are arranged on the lower diaphragm cover and the diaphragm respectively so as to apply spring acting force to the diaphragm; a gas inlet is formed between the diaphragm and the upper diaphragm cover; the lower end of a push rod is inserted into the cavity of the bracket in a matching way; the upper end of the push rod is contacted with the diaphragm, and the diaphragm drives the push rod to move downwards. The normally open pneumatic diaphragm actuator of the valve has a simple structure and a small number of components, and is widely applied to various control valves; acting flexibility and sensitivity are high, actuating time needed for generating an action is shortened, and the working efficiency of the valve is improved; the push rod can move up and down stably and can drive a valve core, a valve plate and the like which are connected with the push rod to move stably.
Description
Technical field
The utility model relates to the air bladder final controlling element open in usual of final controlling element, especially valve of the pipeline flow modulating valve of a kind of gas, liquid (fluid).
Background technique
In the conveyance conduit of gas, liquid (fluid), a plurality of valves all will be set to be controlled, the unlatching of controlling plumbing fixtures, close or the size of opening degree etc., to produce corresponding action, pipeline is opened as required and controlled the degree of unlatching or close, make gas, liquid (fluid) etc. pass through control valve.The modulating valve of prior art, its final controlling element drives valve rod and moves up and down (modulating valve) or drive valve rod rotation (butterfly valve) etc., with the unlatching of controlling plumbing fixtures, close or the big or small degree of opening degree, final controlling element is the vitals of modulating valve, directly determines the flexibility of modulating valve action and the length of time of implementation.The final controlling element of modulating valve in the prior art, mostly structure is complicated, and the flexibility, the sensitivity that produce action are relatively poor, and the time of implementation that needs is longer, and the corresponding efficient that reduces valve can not adapt to the needs that pipeline is controlled.
Summary of the invention
Above-mentioned deficiencies such as the utility model is complicated at the actuator structure of prior art valve, produce the flexibility of action and sensitivity is relatively poor, time of implementation of needing is long provide the air bladder final controlling element open in usual that a kind of flexibility simple in structure, that produce action is higher, shorten the valve of time of implementation.
The technical solution of the utility model: the air bladder final controlling element open in usual of valve, comprise support, the support centre that is rotary structure has cavity, is provided with membrane body on support; It is characterized in that: described membrane body is made up of the following membrane cover and the last membrane cover of detachable connection, forms diaphragm chamber between following membrane cover and the last membrane cover, and diaphragm arrangement is in diaphragm chamber; Be provided with spring in diaphragm chamber, the upper and lower end of spring is separately positioned on down on membrane cover and the diaphragm, gives acting force of the spring of diaphragm; Between diaphragm and last membrane cover, be provided with the gas access; The lower end of push rod cooperates the cavity that penetrates support, and the upper end of push rod contacts with diaphragm, and diaphragm drives push rod and moves downward.
Further feature be in: between diaphragm and spring spring seat is set, the upper end of spring is arranged on the spring seat, and the upper end of push rod is connected with spring seat.
In the last membrane cover limiting stopper is set.
Spring is two groups, is symmetrical arranged with respect to push rod.
The air bladder final controlling element open in usual of valve of the present utility model with respect to prior art, has following characteristics:
1, simple in structure, one-piece element is less, is widely used in the various control valve.
2, the flexibility and the sensitivity of generation action are higher, and the time of implementation that producing action needs is shortened,
Improved the working efficiency of valve.
3, push rod easy motion up and down, push rod can drive the spool that is attached thereto, valve plate etc. move steady,
Description of drawings
Fig. 1 is the utility model actuator structure sectional view.
Embodiment
In figure, the air bladder final controlling element open in usual of valve of the present utility model, comprise support 1, support 1 centre that is rotary structure has cavity, is provided with membrane body 2 on support 1, described membrane body 2 is by membrane cover 3 and last membrane cover 4 are formed down, detachable flexible connection between following membrane cover 3 and the last membrane cover 4 forms diaphragm chamber 5 between following membrane cover 3 and the last membrane cover 4, diaphragm 6 is arranged in the diaphragm chamber 5, diaphragm 6 is rubber-like thin slices, can upspring or to recessed; Flexibly connect mutually by bolt, nut between membrane cover 3 and the last membrane cover 4 under shown in the figure; Be provided with spring 7 in diaphragm chamber 5, the upper and lower end of spring 7 is separately positioned on down on membrane cover 3 and the diaphragm 6, gives 6 one acting force of the spring of diaphragm, and it is popped up as the time spent not being subjected to external force; Between diaphragm 6 and last membrane cover 4, be provided with gas access 8, extraneous pressurized gas enters between diaphragm 6 and the last membrane cover 4 by gas access 8, promotes diaphragm 6 motion (to recessed) down in diaphragm chamber 5.The lower end of push rod 9 cooperates the cavity that penetrates support 1, and the upper end of push rod 9 contacts with diaphragm 6,, drives push rod 9 and moves downward when recessed at diaphragm 6.
In order to prevent that spring 7 from scratching diaphragm 6 when directly contacting with diaphragm 6, between diaphragm 6 and spring 7, spring seat 10 is set, the upper end of spring 7 is arranged on the spring seat 10, is diaphragm 6 above the spring seat 10, and the upper end of push rod 9 is connected with spring seat 10.
More steady in order to move, in last membrane cover 4, limiting stopper 11 is set, the highest line journey position of limiting stopper 11 energy limiting diaphragms 6 or push rod 9 prevents that diaphragm 6 from stopping up gas accesses 8, makes diaphragm 6 and push rod 9 smooth runnings.Simultaneously, being arranged on the spring 7 in the diaphragm chamber 5, generally is left and right symmetrically arranged two groups, is symmetrical arranged with respect to push rod 9, and push rod 9 Shi Nenggeng that moves up and down is steady, increases the stationarity of modulating valve.
Working procedure of the present utility model: final controlling element of the present utility model is open in usual, and push rod 9 is in a high position when flat, allows its spool that connects below, valve plate etc. be in open mode, and liquid (fluid) can pass through modulating valve; When needs are closed modulating valve, start external gas compressing apparatus, pressurized gas is entered in the membrane body 2 by gas access 8, pressurized gas is given diaphragm 6 pressure, promote diaphragm 6 motion (to recessed) down diaphragm chamber 5 in, diaphragm 6 just drive push rod 9(or by spring seat 10 drive push rods 9) elastic force that overcomes spring 7 moves downward, push rod 9 its spools that connect below of drive, valve plate etc. move downward, close modulating valve, liquid (fluid) etc. just can not pass through modulating valve.When needs are opened modulating valve, close gas compressing apparatus, the gas between diaphragm 6 and the last membrane cover 4 to be discharged, diaphragm 6 no longer is subjected to the gas pressure effect, and under the elastic force operation of spring 7, diaphragm 6 and push rod 9 up reset, and push rod 9 up moves, and opens modulating valve.
Claims (4)
1. the air bladder final controlling element open in usual of valve comprises support (1), and support (1) centre that is rotary structure has cavity, is provided with membrane body (2) on support (1); It is characterized in that: described membrane body (2) is made up of the following membrane cover (3) and the last membrane cover (4) of detachable flexible connection, forms diaphragm chamber (5) between following membrane cover (3) and the last membrane cover (4), and diaphragm (6) is arranged in the diaphragm chamber (5); Be provided with spring (7) in diaphragm chamber (5), the upper and lower end of spring (7) is separately positioned on down on membrane cover (3) and the diaphragm (6), gives (6) acting force of the spring of diaphragm; Between diaphragm (6) and last membrane cover (4), be provided with gas access (8); The lower end of push rod (9) cooperates the cavity that penetrates support (1), and the upper end of push rod (9) contacts with diaphragm (6), and diaphragm (6) drives push rod (9) and moves downward.
2. according to the air bladder final controlling element open in usual of the described valve of claim 1, it is characterized in that: between diaphragm (6) and spring (7), spring seat (10) is set, the upper end of spring (7) is arranged on the spring seat (10), and the upper end of push rod (9) is connected with spring seat (10).
3. according to the air bladder final controlling element open in usual of claim 1 or 2 described valves, it is characterized in that: go up in the membrane cover (4) limiting stopper (11) is set.
4. according to the air bladder final controlling element open in usual of the described valve of claim 3, it is characterized in that: spring (7) is two groups, is symmetrical arranged with respect to push rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206038739U CN201836510U (en) | 2010-11-12 | 2010-11-12 | Normally open pneumatic diaphragm actuator of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206038739U CN201836510U (en) | 2010-11-12 | 2010-11-12 | Normally open pneumatic diaphragm actuator of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836510U true CN201836510U (en) | 2011-05-18 |
Family
ID=44006614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206038739U Expired - Fee Related CN201836510U (en) | 2010-11-12 | 2010-11-12 | Normally open pneumatic diaphragm actuator of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2623080C2 (en) * | 2014-11-05 | 2017-06-21 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Владимирский государственный университет имени Александра Григорьевича и Николая Григорьевича Столетовых" (ВлГУ) | Diaphragm actuator with solid centers operation method |
-
2010
- 2010-11-12 CN CN2010206038739U patent/CN201836510U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2623080C2 (en) * | 2014-11-05 | 2017-06-21 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Владимирский государственный университет имени Александра Григорьевича и Николая Григорьевича Столетовых" (ВлГУ) | Diaphragm actuator with solid centers operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20131112 |