CN203979598U - One pneumatic air-bag formula actuator - Google Patents
One pneumatic air-bag formula actuator Download PDFInfo
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- CN203979598U CN203979598U CN201420366720.5U CN201420366720U CN203979598U CN 203979598 U CN203979598 U CN 203979598U CN 201420366720 U CN201420366720 U CN 201420366720U CN 203979598 U CN203979598 U CN 203979598U
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- push rod
- pressure plate
- capsule
- movable pressure
- capsule chamber
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- Fluid-Damping Devices (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a kind of pneumatic air-bag formula actuator, comprising: upper capsule chamber; Connect and compose the lower capsule chamber of capsule chamber with upper capsule chamber, the indoor push rod that is provided with of lower capsule, the lower end of push rod extends that lower capsule is outdoor to be connected with valve mechanism connecting rod, and the lower end of lower capsule chamber is connected with support, and support is connected with valve mechanism; Be arranged on the indoor movable pressure plate of capsule, movable pressure plate is connected with described push rod top; Be arranged on reposition element and bounding means on movable pressure plate the first end face; Be arranged on the air bag on movable pressure plate the second end face, the gas port of air bag is connected with pneumatic control source of the gas.The utility model drives movable pressure plate activity by the inflation to air bag or venting, and then drive push rod activity, push rod drives connected valve mechanism work, reach adjusting object, avoid the useful area of traditional diaphragm to change the impact on control accuracy, and the sealing requirements indoor to capsule is not high, only need to ensure the sealing of air bag.
Description
Technical field
The utility model relates to actuator's technical field that modulating valve automatically adjusts, particularly a kind of pneumatic air-bag formula actuator.
Background technique
Current modulating valve great majority adopt pneumatic diaphragn actuating mechanism, as shown in Figure 1, and existing pneumatic diaphragn actuating mechanism is made up of upper membrane cover 20, lower membrane cover 60, diaphragm 30, pallet 50, spring 40 and the support 70 that is arranged on lower membrane cover bottom, on support 70, be provided with a push rod 80 that can slide up and down and connect diaphragm 30 and valve mechanism valve rod.Upper membrane cover 20 and lower membrane cover 60 component film heads, film chamber in film head is communicated with outside control source of the gas, after signal pressure input film chamber, on diaphragm 30, produce thrust, Compress Spring 40, moves push rod 80, push rod 80 drives connected valve rod, change the Flow area between spool and valve seat, reach the reaction force of spring and thrust that signal pressure acts on diaphragm and balance each other, thereby reach the object of automatic adjusting process parameter.
But there is defect in this pneumatic diaphragn actuating mechanism, in the course of the work, the useful area of diaphragm 30 is constantly to change, the variation of the useful area of diaphragm 30 directly affects the linearity control of actuator, the control accuracy of impact to modulating valve, and high to film chamber sealing requirements, can not gas leak phenomenon, otherwise can greatly affect the control accuracy of modulating valve.
Model utility content
The purpose of this utility model is for the deficiency of existing pneumatic diaphragn actuating mechanism and defect, and a kind of pneumatic air-bag formula actuator is provided, and this is the degree of regulation of regulating and controlling valve well, can address the above problem.
The technical problem that the utility model solves can realize by the following technical solutions:
One pneumatic air-bag formula actuator, comprising:
Upper capsule chamber;
Connect and compose the lower capsule chamber of capsule chamber with described upper capsule chamber, the indoor push rod that is provided with of described lower capsule, the lower end of described push rod extends that described lower capsule is outdoor to be connected with valve mechanism connecting rod, and the lower end of described lower capsule chamber is connected with support, and described support is connected with valve mechanism;
It is characterized in that, also comprise:
Be arranged on the indoor movable pressure plate of described capsule, described movable pressure plate is connected with described push rod top;
Be arranged on reposition element and bounding means on described movable pressure plate the first end face;
Be arranged on the air bag on described movable pressure plate the second end face, the gas port of described air bag is connected with pneumatic control source of the gas.
In a preferred embodiment of the present utility model, described air bag is annular air-pocket, the axis of described annular air-pocket and the dead in line of described push rod.
In a preferred embodiment of the present utility model, described reposition element is that some two ends are connected to respectively on described movable pressure plate and the Returnning spring of described capsule chamber interior walls.
In a preferred embodiment of the present utility model, the quantity of described Returnning spring is even number, is symmetricly set on described capsule respectively indoor about the axis of described push rod.
Owing to having adopted technological scheme as above, the utility model drives movable pressure plate activity by the inflation to air bag or venting, and then drive push rod activity, push rod drives connected valve mechanism work, reach adjusting object, avoid the useful area of traditional diaphragm to change the impact on control accuracy, and not high to the indoor sealing requirements of capsule, only need to ensure the sealing of air bag.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of existing pneumatic diaphragn actuating mechanism.
Fig. 2 is a kind of embodiment's of the utility model structural representation.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Shown in Figure 2 a kind of pneumatic air-bag formula actuator, comprises the capsule chamber 100 being made up of upper capsule chamber 110 and lower capsule chamber 120, and the two ends of upper capsule chamber 110 and lower capsule chamber 120 are connected and fixed by fastening piece 130.The lower end of lower capsule chamber 120 is connected with support 700, and support 700 is connected with valve mechanism (not shown).In lower capsule chamber 120, be provided with a push rod 600, the lower end of push rod 600 is extended lower capsule chamber 120 and is connected with valve mechanism connecting rod outward.
In capsule chamber 100, be provided with reposition element 400, bounding means 500, movable pressure plate 300 and air bag 200.The present embodiment illustrates as an example of direct actuator example, and the top of push rod 600 is connected with the middle part of movable pressure plate 300, and air bag 200 is arranged between movable pressure plate 300 Yu Shangnang chambers, upper-end surface 110.In order to make air bag 200 suffered pressure balance of movable pressure plate 300 in inflation process, ensure that the activity direction of movable pressure plate 300 is parallel to the axis of push rod 600 all the time, air bag 200 is annular air-pocket, the dead in line of the axis of annular air-pocket and push rod 600.The top of upper capsule chamber 110 offers an opening 111, and the gas port 210 of air bag 200 extends outside opening 111, and is connected with pneumatic control source of the gas.
And reposition element 400 and bounding means 500 are all arranged between movable pressure plate 300 Yu Xianang chambers, lower end surface 120, the reposition element 400 in the present embodiment is Returnning spring.In order to make the pressure balance of Returnning spring to movable pressure plate 300, ensure that the activity direction of movable pressure plate 300 is parallel to the axis of push rod 600 all the time, the quantity of Returnning spring is even number, be symmetricly set in capsule chamber 100 about the axis of push rod 600 respectively, and the two ends of Returnning spring are connected to respectively movable pressure plate 300 lower end surfaces and lower capsule chamber 120 inwalls, and it limits its radially activity by a bounding means 410 that is fixed on lower capsule chamber 120 inwalls.
When work, only need air bag 200 be inflated or be exitted by pneumatic control source of the gas, can drive movable pressure plate 300 to move along the axial direction of push rod 600, and then drive push rod 600 activities, push rod 600 drives connected valve mechanism work, reaches adjusting object, has avoided the useful area of traditional diaphragm to change the impact on control accuracy, and not high to the sealing requirements in capsule chamber 100, only need to ensure the sealing of air bag 200.
Certainly, the utility model is except as direct actuator, can also serve as reverse actuator, air bag 200 is arranged between movable pressure plate 300 and lower capsule chamber 120, reposition element 400 and bounding means 500 are all arranged between movable pressure plate 300 Yu Shangnang chambers, upper-end surface 120, and remaining structure is all the same with above-described embodiment with working principle.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a pneumatic air-bag formula actuator, comprising:
Upper capsule chamber;
Connect and compose the lower capsule chamber of capsule chamber with described upper capsule chamber, the indoor push rod that is provided with of described lower capsule, the lower end of described push rod extends that described lower capsule is outdoor to be connected with valve mechanism connecting rod, and the lower end of described lower capsule chamber is connected with support, and described support is connected with valve mechanism;
It is characterized in that, also comprise:
Be arranged on the indoor movable pressure plate of described capsule, described movable pressure plate is connected with described push rod top;
Be arranged on reposition element and bounding means on described movable pressure plate the first end face;
Be arranged on the air bag on described movable pressure plate the second end face, the gas port of described air bag is connected with pneumatic control source of the gas.
2. a kind of pneumatic air-bag formula as claimed in claim 1 actuator, is characterized in that, described air bag is annular air-pocket, the axis of described annular air-pocket and the dead in line of described push rod.
3. a kind of pneumatic air-bag formula as claimed in claim 1 or 2 actuator, is characterized in that, described reposition element is that some two ends are connected to respectively on described movable pressure plate and the Returnning spring of described capsule chamber interior walls.
4. a kind of pneumatic air-bag formula as claimed in claim 3 actuator, is characterized in that, the quantity of described Returnning spring is even number, is symmetricly set on described capsule respectively indoor about the axis of described push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366720.5U CN203979598U (en) | 2014-07-03 | 2014-07-03 | One pneumatic air-bag formula actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366720.5U CN203979598U (en) | 2014-07-03 | 2014-07-03 | One pneumatic air-bag formula actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979598U true CN203979598U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420366720.5U Expired - Fee Related CN203979598U (en) | 2014-07-03 | 2014-07-03 | One pneumatic air-bag formula actuator |
Country Status (1)
| Country | Link |
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| CN (1) | CN203979598U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653852A (en) * | 2015-01-27 | 2015-05-27 | 杭州永盛科技有限公司 | Manual-automatic integrated hinge type pneumatic regulating valve |
| CN108030482A (en) * | 2017-12-06 | 2018-05-15 | 深圳市星河泉新材料有限公司五金配件分厂 | Pressure structure, gasbag-type blood pressure detecting module and blood pressure intelligent detection equipment |
| CN110529630A (en) * | 2019-08-19 | 2019-12-03 | 重庆懿熙品牌策划有限公司 | A kind of commutation valve group and its air automated collection systems |
-
2014
- 2014-07-03 CN CN201420366720.5U patent/CN203979598U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653852A (en) * | 2015-01-27 | 2015-05-27 | 杭州永盛科技有限公司 | Manual-automatic integrated hinge type pneumatic regulating valve |
| CN104653852B (en) * | 2015-01-27 | 2017-02-01 | 杭州永盛科技有限公司 | Manual-automatic integrated hinge type pneumatic regulating valve |
| CN108030482A (en) * | 2017-12-06 | 2018-05-15 | 深圳市星河泉新材料有限公司五金配件分厂 | Pressure structure, gasbag-type blood pressure detecting module and blood pressure intelligent detection equipment |
| CN108030482B (en) * | 2017-12-06 | 2023-12-29 | 深圳市星河泉新材料有限公司 | Pressurization structure, air bag type blood pressure detection module and intelligent blood pressure detection equipment |
| CN110529630A (en) * | 2019-08-19 | 2019-12-03 | 重庆懿熙品牌策划有限公司 | A kind of commutation valve group and its air automated collection systems |
| CN110529630B (en) * | 2019-08-19 | 2021-10-15 | 苏州市啸峰环保科技有限公司 | Reversing valve group and automatic air acquisition system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180428 Address after: 201506 jinliu Road, Jinshan Industrial Area, Jinshan District, Shanghai 877 Co-patentee after: JINLIU VALVE (SHANGHAI) CO.,LTD. Patentee after: SHANGHAI GOLD FLOW MAOYE FLUID TECHNOLOGY Co.,Ltd. Address before: 201506 room 1605, 4 Ting Wei Road, Jinshan Industrial Zone, Jinshan District, Shanghai, 6558 Patentee before: JINLIU VALVE (SHANGHAI) CO.,LTD. |
|
| 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: 20141203 |