CN202769015U - Upright-column-type film operation mechanism - Google Patents
Upright-column-type film operation mechanism Download PDFInfo
- Publication number
- CN202769015U CN202769015U CN 201220430747 CN201220430747U CN202769015U CN 202769015 U CN202769015 U CN 202769015U CN 201220430747 CN201220430747 CN 201220430747 CN 201220430747 U CN201220430747 U CN 201220430747U CN 202769015 U CN202769015 U CN 202769015U
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- Prior art keywords
- push rod
- film chamber
- diaphragm
- film
- membrane
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- Expired - Fee Related
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Abstract
The utility model discloses an upright-column-type film operation mechanism comprises a film chamber and a pushing rod, wherein the film chamber comprises an upper film cover and a lower film cover, a membrane is arranged in the film chamber, the membrane is connected between the upper film cover and the lower film cover through a bolt, a tray is arranged above the membrane, a spring set is arranged on the tray, a limit element is arranged under the membrane, a guide sleeve is arranged under the limit element, the pushing rod penetrates through the guide sleeve, the bottom of the pushing rod is provided with a tapered head and connected with the connecting element, and the film chamber is arranged on a supporting plate and connected with a valve installation plate through an upright column. The upright column is utilized to replace a support, so the operation mechanism reduces the size and the weight of a supporting structure and is convenient to install. Meanwhile, compared with a casting element, the upright column is convenient and simple to process and short in period. The tapered head at the bottom of the pushing rod replaces thread connection, so operation is prevented from being influenced due to thread pulling. Besides, due to tapered connection, the operation mechanism is stable in stress and convenient and reliable to install on site.
Description
Technical field
The utility model relates to a kind of upright post type diaphragm actuator, belongs to a kind of actuator's technical field of modulating valve.
Background technique
Pneumatic control valve is exactly take pressurized air as power source, take cylinder as final controlling element, and remove to drive valve by means of annexes such as electropneumatic valve positioner, transducer, solenoid valve, guarantor position valves, realize the adjusting of switching value or proportion expression, and diaphragm actuator is as the important step of regulating system, and its working state directly affects the quality of control procedure.
Pneumatic diaphragm control valve mainly is comprised of two-part, and valve mechanism and actuator connect by the push rod link between the two.When air chamber in the actuator passed into the source of the gas of certain pressure, Compress Spring caused certain displacement, was delivered on the valve rod through the push rod link, realized keying and the adjusting of modulating valve.Pneumatic diaphragn actuating mechanism is as the most frequently used drive unit of modulating valve, and is simple in structure, and reliable in action is easy to maintenance, is widely used.
Traditional diaphragm actuator as shown in Figure 2, by upper membrane cover 9, lower membrane cover 12 and diaphragm component film chambers 8, the film chamber is connected with valve body by support 20, support 20 volumes are larger, and heaviness, its installation or removal have certain difficulty.The push rod that bottom, film chamber connects adopts worm structure to be connected with valve rod, and when push rod thrust was larger, worm structure was pulled easily, can have influence on the operation of execute-in-place when serious.
The model utility content
The utility model relates to a kind of upright post type diaphragm actuator, in order to the not easy-to-dismount problem of the connection bracket heaviness that solves conventional films actuator, and the problem of having avoided simultaneously push rod and valve rod joint screw thread to pull.
For realizing this problem, the method that the utility model adopts is: a kind of upright post type diaphragm actuator, comprise film chamber and push rod, described film chamber comprises membrane cover and lower membrane cover, the indoor diaphragm that is provided with of film, diaphragm is bolted between membrane cover and the lower membrane cover, diaphragm is provided with pallet, pallet is provided with cluster spring, the diaphragm below is provided with bounding means and guide sleeve successively, push rod interts in the middle of guide sleeve, and described push rod end is the conical head structure, and push rod is connected with regulating connecting rod by the push rod link.
Bottom, described film chamber is by the dunnage support, and the film chamber is connected with the valve body mounting plate by many root posts.
Its beneficial effect is: the utility model utilizes column to replace support, has reduced the volume and weight of supporting structure, is convenient to install, and it is easy to process simple that the while column is compared the foundry goods support, and the cycle is short; The conical head connection of push rod bottom replaces being threaded, and avoided because screw thread is pulled the impact that causes operation, and the conical surface connects stressed steady, on-the-spot easy installation and reliable.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the utility model sectional structure chart;
Fig. 2 is conventional films actuator sectional structure chart.
Embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
As shown in Figure 1, a kind of upright post type diaphragm actuator is by upper membrane cover 9 and lower membrane cover component film chambers 12, the indoor diaphragm 8 that is provided with of film, diaphragm 8 is bolted between membrane cover 9 and the lower membrane cover 12, is provided with cluster spring 10 in the upper film chamber, and cluster spring 10 is by pallet 7 supports of diaphragm 8 tops.Diaphragm 8 belows are provided with bounding means 11 and guide sleeve 6 successively, and guide sleeve 6 is fixed on lower membrane cover 12 bottom center, are provided with a push rod 4 in the middle of the guide sleeve 6, and 11 pairs of push rods 4 of guide sleeve 6 and bounding means play spacing leading role.Pressurized air inputs to lower film chamber by suction port and acts on the diaphragm 8, passes to push rod 4 by pallet 7, and compression spring set 10 makes push rod 4 change knee-action with pressure simultaneously.Push rod 4 ends are the conical head structure, have avoided conventional threads push rod long working to cause screw thread to be pulled and affect operation.Push rod 4 is connected with regulating connecting rod 2 by push rod link 3, makes regulating connecting rod 2 actions.The film chamber is placed on the dunnage 13, and is connected with valve body mounting plate 1 by many root posts 5, and column 5 has alleviated whole weight, and column 5 is compared traditional casting mold support easy dissembling and-assembling simultaneously.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (2)
1. upright post type diaphragm actuator, comprise film chamber and push rod (4), described film chamber comprises membrane cover (9) and lower membrane cover (12), the indoor diaphragm (8) that is provided with of film, diaphragm (8) is bolted between membrane cover (9) and the lower membrane cover (12), diaphragm (8) is provided with pallet (7), pallet (7) is provided with cluster spring (10), diaphragm (8) below is provided with bounding means (11) and guide sleeve (6) successively, push rod (4) interts in the middle of guide sleeve (6), it is characterized in that described push rod (4) end is the conical head structure, push rod (4) is connected with regulating connecting rod (2) by push rod link (3).
2. upright post type diaphragm actuator according to claim 1 is characterized in that, bottom, described film chamber is by dunnage (13) support, and the film chamber is connected with valve body mounting plate (1) by many root posts (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430747 CN202769015U (en) | 2012-08-29 | 2012-08-29 | Upright-column-type film operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430747 CN202769015U (en) | 2012-08-29 | 2012-08-29 | Upright-column-type film operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202769015U true CN202769015U (en) | 2013-03-06 |
Family
ID=47775590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220430747 Expired - Fee Related CN202769015U (en) | 2012-08-29 | 2012-08-29 | Upright-column-type film operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202769015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939939A (en) * | 2016-01-05 | 2017-07-11 | 重庆滟昭汽车科技有限公司 | Take turns side Air filling and discharging valves |
-
2012
- 2012-08-29 CN CN 201220430747 patent/CN202769015U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939939A (en) * | 2016-01-05 | 2017-07-11 | 重庆滟昭汽车科技有限公司 | Take turns side Air filling and discharging valves |
| CN106939939B (en) * | 2016-01-05 | 2020-06-16 | 重庆滟昭汽车科技有限公司 | Wheel rim inflation and deflation valve |
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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 |
Granted publication date: 20130306 Termination date: 20190829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |