CN112128457A - High-frequency long-life swing arm type pneumatic actuating mechanism - Google Patents
High-frequency long-life swing arm type pneumatic actuating mechanism Download PDFInfo
- Publication number
- CN112128457A CN112128457A CN202011005949.2A CN202011005949A CN112128457A CN 112128457 A CN112128457 A CN 112128457A CN 202011005949 A CN202011005949 A CN 202011005949A CN 112128457 A CN112128457 A CN 112128457A
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- China
- Prior art keywords
- swing arm
- piston
- cylinder cover
- high frequency
- actuator
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N15/00—Lubrication with substances other than oil or grease; Lubrication characterised by the use of particular lubricants in particular apparatus or conditions
- F16N15/02—Lubrication with substances other than oil or grease; Lubrication characterised by the use of particular lubricants in particular apparatus or conditions with graphite or graphite-containing compositions
Abstract
The invention discloses a swing arm type pneumatic actuator with high frequency and long service life, which relates to the technical field of pneumatic actuators, and particularly relates to a swing arm type pneumatic actuator with high frequency and long service life. The high-frequency long-service-life swing arm type pneumatic actuating mechanism is a crank arm piston type actuator, compressed air pushes a piston to do linear motion through a cylinder, and then the linear motion of the piston is converted into angular rotary motion through a connecting rod and a crank arm.
Description
Technical Field
The invention relates to the technical field of pneumatic actuating mechanisms, in particular to a swing arm type pneumatic actuating mechanism with high frequency and long service life.
Background
The actuating mechanism and the adjusting mechanism of the pneumatic actuator are a unified whole, and the actuating mechanism comprises a film type, a piston type, a shifting fork type and a gear-rack type. The piston type stroke is long, and the piston type thrust mechanism is suitable for occasions requiring large thrust; the diaphragm type stroke is small, and the valve rod can only be directly driven. The shifting fork type pneumatic actuator has the characteristics of large torque, small space, more accordance with a torque curve of a valve and the like, but is not very attractive; is often used on valves with high torque. The gear and rack type pneumatic actuating mechanism has the advantages of simple structure, stable and reliable action, safety, explosion prevention and the like, and is widely applied to production processes with higher safety requirements, such as power plants, chemical engineering, oil refining and the like.
The existing pneumatic actuating mechanism cannot well reduce the abrasion among all components in the pneumatic actuating mechanism and cannot well provide auxiliary guide for the pneumatic actuating mechanism in the using process.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a swing arm type pneumatic actuating mechanism with high frequency and long service life, and solves the problems that the abrasion among components in the pneumatic actuating mechanism cannot be well reduced and auxiliary guide cannot be well provided for the pneumatic actuating mechanism in the use process of the existing pneumatic actuating mechanism in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-frequency long-life swing arm type pneumatic actuator comprises an end adjusting bolt, wherein a side cylinder cover is installed on one side of the end adjusting bolt, an actuating cylinder body is installed on one side of the side cylinder cover, a connecting piston is arranged inside the actuating cylinder body, a piston rod is connected to one side of the connecting piston, connecting rods are installed at the front end and the rear end of one side of the piston rod, graphite self-lubricating copper sleeves are arranged inside two ends of each connecting rod, a locking pin shaft penetrates through the bottom of each connecting rod, a connecting pin shaft penetrates through the top of each connecting rod, a crank arm is installed on one side of each connecting rod, a positioning shaft rod penetrates through the end of one side of each crank arm, gaskets are installed at two ends of each connecting pin shaft and each locking pin shaft, an actuator box body is installed on one side of the actuating cylinder body, and a tail adjusting bolt is connected to, the upper and lower both sides of carrying out the cylinder body all install stud, and stud's the left and right sides all is connected with adjusting nut.
Optionally, the end adjusting bolt penetrates through the inside of the side cylinder cover, central axes of the end adjusting bolt, the actuating cylinder body, the side cylinder cover and the positioning cylinder cover coincide with each other, and the side cylinder cover and the positioning cylinder cover are connected through the stud bolt and the adjusting nut.
Optionally, the connecting piston is connected with the piston rod, and the size structure of the inner wall of the cylinder body of the actuating cylinder is larger than the size structure of the outer wall of the connecting piston.
Optionally, the piston rod is connected with the connecting rod through a locking pin shaft, and the locking pin shaft penetrates through the inside of the graphite self-lubricating copper sleeve.
Optionally, the crank arm, the connecting rod and the washer are symmetrically distributed about the central axis of the piston rod, and eight washers are arranged.
Optionally, the connecting rod is connected with the crank arm through a connecting pin shaft, and the crank arm is connected with the actuator box through a positioning shaft rod.
Optionally, stud and adjusting nut all distribute about the axis symmetry of carrying out the cylinder body, and stud and adjusting nut are provided with four.
Optionally, the diameter of the inner wall of the positioning copper sleeve is equal to the diameter of the outer wall of the piston rod, and the piston rod penetrates through the positioning copper sleeve.
Optionally, the actuator box body is in threaded connection with the tail adjusting bolt, and the end of the actuator cylinder body penetrates through the other side of the inner wall of the actuator box body.
The invention provides a swing arm type pneumatic actuating mechanism with high frequency and long service life, which has the following beneficial effects:
1. the high-frequency long-life swing arm type pneumatic actuator is a crank arm piston type actuator, compressed air pushes a piston to do linear motion through a cylinder, and then the linear motion of the piston is converted into angular rotary motion through a connecting rod and a crank arm, the actuator has the advantages of high rotary precision, small return difference and dead zone, high control process sensitivity and suitability for valves with almost all angular strokes; the rotation precision is high, and all rotating parts are provided with high-precision bearings; the service life is long, the smaller-specification actuator cylinder is an aluminum alloy cylinder, the inner surface of the smaller-specification actuator cylinder is subjected to special wear-resistant treatment, the surface of the piston rod is plated with hard chromium and then is subjected to mirror surface grinding, and the piston adopts a guide belt for guiding and a double-seal design; the crank arm adopts an integral casting structure, has high strength and good stability, and has strong impact resistance; the adjustment is flexible and convenient, the adjustable range is large, the stroke adjustment of the actuator is very convenient by adjusting the stroke adjusting bolts at two sides of the actuator, and the 0-degree and 90-degree points can be adjusted between plus or minus 10 degrees; the pneumatic single-action actuator is provided with a spring ejection prevention structure, so that the actuator is safer to use; the selection is flexible and changeable, the device is economical and practical, and the box body and the air cylinder assembly can be combined according to the torque requirement, so that the output torque level difference is small, the levels are multiple, and the selection is flexible; the pneumatic valve can be opened and closed quickly, and can be opened or closed quickly when being matched with a pneumatic element; the variable torque output characteristic is closer to the actual use requirement of the valve, the actuator has the maximum output torque when opening the starting point and exceeds the nominal rated output torque of the actuator, and the safety coefficient of the actuator is higher.
2. The high-frequency long-life swing arm type pneumatic actuating mechanism comprises a stud bolt and an adjusting nut, wherein a side cylinder cover and a positioning cylinder cover can be effectively connected through the stud bolt and the adjusting nut, the side cylinder cover and the positioning cylinder cover can effectively provide clamping force for an actuating cylinder body, so that the positions of the actuating cylinder body, the side cylinder cover and the positioning cylinder cover can be effectively limited, an elastic cushion is not designed and assembled, the elastic cushion can be effectively prevented from deforming due to frequent action of a piston, the actuating cylinder body, the side cylinder cover and the positioning cylinder cover are loosened, the connection stability of the actuating cylinder body, the side cylinder cover and the positioning cylinder cover can be effectively maintained, the positioning cylinder cover is guided, the guide distance is specially lengthened, the piston rod is prevented from deviating, the positioning cylinder cover is worn for a long time, and a certain distance is reserved between the connecting piston and the side cylinder cover, so that a sufficient distance is left between the connecting piston and the side cylinder cover to prevent the deviation of the piston rod; enough clearance is left between the cylinder body of the movable execution cylinder and the connecting piston, so that the friction of the connecting piston on the cylinder body of the movable execution cylinder can be effectively prevented; the connecting pin shaft, the locking pin shaft and the connecting rod can be effectively separated by a certain distance by the graphite self-lubricating copper sleeve, and the graphite self-lubricating copper sleeve can effectively provide lubricating treatment for the connecting pin shaft and the locking pin shaft and reduce the abrasion of the piston rod; through the design of packing ring can effectually separate certain interval with the tip of cranking arm, connecting rod and connecting pin axle and locking round pin axle, can effectually prevent to crank arm and connecting rod and receive wearing and tearing to and all connections are removed and are avoided being suitable for the jump ring fixed, are suitable for the thread tightening, both prevent the mechanical fault that the jump ring wearing and tearing brought, dismantlement when making things convenient for the maintenance again.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1A;
fig. 5 is a schematic sectional view of the connecting piston according to the present invention.
In the figure: 1. an end adjusting bolt; 2. an actuating cylinder block; 3. connecting a piston; 4. a piston rod; 5. an actuator box body; 6. a crank arm; 7. a connecting rod; 8. a graphite self-lubricating copper sleeve is arranged; 9. a side cylinder cover; 10. positioning a cylinder cover; 11. positioning the copper sleeve; 12. connecting a pin shaft; 13. locking the pin shaft; 14. a gasket; 15. positioning the shaft lever; 16. a tail adjusting bolt; 17. a stud bolt; 18. the nut is adjusted.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 5, the present invention provides a technical solution: a high-frequency long-life swing arm type pneumatic actuator comprises an end adjusting bolt 1, wherein one side of the end adjusting bolt 1 is provided with a side cylinder cover 9, one side of the side cylinder cover 9 is provided with an executing cylinder body 2, the inside of the executing cylinder body 2 is provided with a connecting piston 3, one side of the connecting piston 3 is connected with a piston rod 4, the front end and the rear end of one side of the piston rod 4 are both provided with connecting rods 7, the insides of the two ends of each connecting rod 7 are both provided with graphite self-lubricating copper sleeves 8, the bottom of each connecting rod 7 is penetrated with a locking pin shaft 13, the top of each connecting rod 7 is penetrated with a connecting pin shaft 12, one side of each connecting rod 7 is provided with a crank arm 6, the end of one side of each crank arm 6 is penetrated with a positioning shaft rod 15, the two ends of each connecting pin shaft 12 and each locking pin shaft 13 are both provided with a gasket 14, one side of the, stud bolts 17 are mounted on the upper and lower sides of the actuating cylinder block 2, and adjusting nuts 18 are connected to the left and right sides of the stud bolts 17.
In the invention: the end adjusting bolt 1 penetrates through the inside of the side cylinder cover 9, the central axes of the end adjusting bolt 1, the actuating cylinder body 2, the side cylinder cover 9 and the positioning cylinder cover 10 are superposed, and the side cylinder cover 9 and the positioning cylinder cover 10 are connected through a stud bolt 17 and an adjusting nut 18; the side cylinder cover 9 and the positioning cylinder cover 10 can be effectively connected through the stud bolt 17 and the adjusting nut 18, the side cylinder cover 9 and the positioning cylinder cover 10 can effectively provide clamping force for the execution cylinder body 2, so that the positions of the execution cylinder body 2, the side cylinder cover 9 and the positioning cylinder cover 10 can be effectively limited, an elastic cushion is not designed and assembled, the elastic cushion can be effectively prevented from being deformed due to frequent action of a piston, the execution cylinder body 2, the side cylinder cover 9 and the positioning cylinder cover 10 are loosened, the connection stability of the execution cylinder body 2, the side cylinder cover 9 and the positioning cylinder cover 10 can be effectively maintained, the positioning cylinder cover 10 is guided, the guiding distance is lengthened, the deviation of a piston rod 4 is prevented, the positioning cylinder cover 10 is worn for a long time, a certain distance is reserved between the connecting piston 3 and the side cylinder cover 9, and a sufficient distance is reserved between the connecting piston 3 and the side cylinder cover 9, preventing the piston rod 4 from deflecting.
In the invention: the connecting piston 3 is connected with the piston rod 4, and the size structure of the inner wall of the actuating cylinder body 2 is larger than that of the outer wall of the connecting piston 3; enough clearance is left between the cylinder body 2 of the movable execution cylinder and the connecting piston 3, and the friction of the connecting piston 3 on the cylinder body 2 of the movable execution cylinder can be effectively prevented.
In the invention: the piston rod 4 is connected with the connecting rod 7 through a locking pin shaft 13, and the locking pin shaft 13 penetrates through the interior of the copper sleeve 8 with the graphite self-lubricating function; take graphite self-lubricating copper sheathing 8 can effectually separate a determining deviation between connecting pin axle 12 and locking round pin axle 13 and the connecting rod 7 to and take graphite self-lubricating copper sheathing 8 can effectually provide lubricated processing for connecting pin axle 12 and locking round pin axle 13, alleviate the wearing and tearing that piston rod (4) received.
In the invention: the crank arm 6, the connecting rod 7 and the washers 14 are symmetrically distributed about the central axis of the piston rod 4, and eight washers 14 are arranged; through the design of packing ring 14 can effectually separate certain interval with the tip of cranking arm 6, connecting rod 7 and connecting pin axle 12 and locking round pin axle 13, can effectually prevent that cranking arm 6 and connecting rod 7 from receiving wearing and tearing to and all connections are except avoiding being suitable for that the jump ring is fixed, are suitable for the thread tightening, both prevent the mechanical fault that the jump ring wearing and tearing brought, the dismantlement when making things convenient for the maintenance again.
In the invention: the connecting rod 7 is connected with the crank arm 6 through a connecting pin shaft 12, and the crank arm 6 is connected with the actuator box body 5 through a positioning shaft lever 15.
In the invention: the stud bolts 17 and the adjusting nuts 18 are both symmetrically distributed about the central axis of the actuator cylinder block 2, and four stud bolts 17 and four adjusting nuts 18 are provided.
In the invention: the diameter of the inner wall of the positioning copper sleeve 11 is equal to the diameter of the outer wall of the piston rod 4, and the piston rod 4 penetrates through the positioning copper sleeve 11.
In the invention: the actuator box body 5 is in threaded connection with the tail adjusting bolt 16, and the end part of the actuating cylinder body 2 penetrates through the other side of the inner wall of the actuator box body 5; the stroke of the actuator can be conveniently adjusted by adjusting the end adjusting bolt 1 and the tail adjusting bolt 16, and the 0-degree point and the 90-degree point can be adjusted between plus or minus 10 degrees.
In summary, when the swing arm type pneumatic actuator with high frequency and long service life is used, firstly, when compressed air passes through the air inlet hole formed at the bottom of the side cylinder cover 9 to actuate the cylinder body 2 of the cylinder, the connecting piston 3 pushes the piston rod 4 to move rightwards, and then the connecting rod 7 drives the crank arm 6 to rotate 90 degrees anticlockwise; on the contrary, when compressed air enters the execution cylinder body 2 from an inlet hole formed in the bottom of the positioning cylinder cover 10, the connecting piston 3 is enabled to push the piston rod 4 to move leftwards, then the connecting rod 7 drives the crank arm 6 to rotate 90 degrees clockwise, the end adjusting bolt 1 and the tail adjusting bolt 16 can be adjusted from two ends, then the adjusting end adjusting bolt 1 is screwed by loosening the nut to adjust to a required angle, and then the nut is locked.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (9)
1. The utility model provides a high frequency high life's swing arm formula pneumatic actuator, includes tip adjusting bolt (1), its characterized in that: a side cylinder cover (9) is installed on one side of the end adjusting bolt (1), an execution cylinder body (2) is installed on one side of the side cylinder cover (9), a connecting piston (3) is arranged inside the execution cylinder body (2), a piston rod (4) is connected to one side of the connecting piston (3), connecting rods (7) are installed at the front end and the rear end of one side of the piston rod (4), graphite self-lubricating copper sleeves (8) are arranged inside the two ends of each connecting rod (7), a locking pin shaft (13) penetrates through the bottom of each connecting rod (7), a connecting pin shaft (12) penetrates through the top of each connecting rod (7), a crank arm (6) is installed on one side of each connecting rod (7), a positioning shaft rod (15) penetrates through the end of one side of the crank arm (6), gaskets (14) are installed at the two ends of the connecting pin shaft (12) and the locking pin shaft (13), executor box (5) are installed to one side of carrying out cylinder body (2), and the tip of executor box (5) one side even has afterbody adjusting bolt (16), stud (17) are all installed to the upper and lower both sides of carrying out cylinder body (2), and the left and right sides of stud (17) all is connected with adjusting nut (18).
2. The high frequency long life swing arm pneumatic actuator of claim 1, wherein: the end adjusting bolt (1) penetrates through the inside of the side cylinder cover (9), the central axes of the end adjusting bolt (1), the actuating cylinder body (2), the side cylinder cover (9) and the positioning cylinder cover (10) are overlapped, and the side cylinder cover (9) and the positioning cylinder cover (10) are connected through a stud bolt (17) and an adjusting nut (18).
3. The high frequency long life swing arm pneumatic actuator of claim 1, wherein: the connecting piston (3) is connected with the piston rod (4), and the size structure of the inner wall of the actuating cylinder body (2) is larger than that of the outer wall of the connecting piston (3).
4. The high frequency long life swing arm pneumatic actuator of claim 1, wherein: the piston rod (4) is connected with the connecting rod (7) through a locking pin shaft (13), and the locking pin shaft (13) penetrates through the interior of the self-lubricating graphite copper sleeve (8).
5. The high frequency long life swing arm pneumatic actuator of claim 1, wherein: crank arm (6), connecting rod (7) and packing ring (14) all are around the axis symmetric distribution of piston rod (4), and packing ring (14) are provided with eight.
6. The high frequency long life swing arm pneumatic actuator of claim 1, wherein: the connecting rod (7) is connected with the crank arm (6) through a connecting pin shaft (12), and the crank arm (6) is connected with the actuator box body (5) through a positioning shaft lever (15).
7. The high frequency long life swing arm pneumatic actuator of claim 1, wherein: stud (17) and adjusting nut (18) all are provided with four about the axis symmetric distribution of carrying out cylinder body (2), and stud (17) and adjusting nut (18).
8. The high frequency long life swing arm pneumatic actuator of claim 1, wherein: the diameter of the inner wall of the positioning copper sleeve (11) is equal to the diameter of the outer wall of the piston rod (4), and the piston rod (4) penetrates through the positioning copper sleeve (11).
9. The high frequency long life swing arm pneumatic actuator of claim 1, wherein: the actuator box body (5) is in threaded connection with the tail adjusting bolt (16), and the end part of the actuator cylinder body (2) penetrates through the other side of the inner wall of the actuator box body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005949.2A CN112128457A (en) | 2020-09-23 | 2020-09-23 | High-frequency long-life swing arm type pneumatic actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005949.2A CN112128457A (en) | 2020-09-23 | 2020-09-23 | High-frequency long-life swing arm type pneumatic actuating mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN112128457A true CN112128457A (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011005949.2A Pending CN112128457A (en) | 2020-09-23 | 2020-09-23 | High-frequency long-life swing arm type pneumatic actuating mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357428A (en) * | 2021-07-12 | 2021-09-07 | 刘志君 | High-frequency long-life swing arm type pneumatic actuating mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089229A (en) * | 1976-08-02 | 1978-05-16 | James Leonard Geraci | Rotary torque actuator |
| CN2405057Y (en) * | 1998-01-13 | 2000-11-08 | 温州中德集团有限公司 | Pneumatic, vertical spaced piston actuator |
| CN201723825U (en) * | 2010-07-07 | 2011-01-26 | 成都欣国立低温科技有限公司 | Crank link pneumatic actuator |
| CN202441967U (en) * | 2012-01-05 | 2012-09-19 | 浙江贝尔控制阀门有限公司 | Duplex-pull-rod shifting fork type pneumatic piston actuator |
| CN209100748U (en) * | 2018-09-17 | 2019-07-12 | 四川沃兰特阀门制造有限公司 | A kind of wear-resisting pneumatic actuator |
| CN209654711U (en) * | 2019-02-20 | 2019-11-19 | 温州市利普自控设备有限公司 | Executing agency |
-
2020
- 2020-09-23 CN CN202011005949.2A patent/CN112128457A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089229A (en) * | 1976-08-02 | 1978-05-16 | James Leonard Geraci | Rotary torque actuator |
| CN2405057Y (en) * | 1998-01-13 | 2000-11-08 | 温州中德集团有限公司 | Pneumatic, vertical spaced piston actuator |
| CN201723825U (en) * | 2010-07-07 | 2011-01-26 | 成都欣国立低温科技有限公司 | Crank link pneumatic actuator |
| CN202441967U (en) * | 2012-01-05 | 2012-09-19 | 浙江贝尔控制阀门有限公司 | Duplex-pull-rod shifting fork type pneumatic piston actuator |
| CN209100748U (en) * | 2018-09-17 | 2019-07-12 | 四川沃兰特阀门制造有限公司 | A kind of wear-resisting pneumatic actuator |
| CN209654711U (en) * | 2019-02-20 | 2019-11-19 | 温州市利普自控设备有限公司 | Executing agency |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357428A (en) * | 2021-07-12 | 2021-09-07 | 刘志君 | High-frequency long-life swing arm type pneumatic actuating mechanism |
| CN113357428B (en) * | 2021-07-12 | 2023-03-14 | 刘志君 | High-frequency long-life swing arm type pneumatic actuating mechanism |
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Application publication date: 20201225 |
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| RJ01 | Rejection of invention patent application after publication |