CN105257895A - Butterfly valve and jetting device comprising same - Google Patents
Butterfly valve and jetting device comprising same Download PDFInfo
- Publication number
- CN105257895A CN105257895A CN201510653085.8A CN201510653085A CN105257895A CN 105257895 A CN105257895 A CN 105257895A CN 201510653085 A CN201510653085 A CN 201510653085A CN 105257895 A CN105257895 A CN 105257895A
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- Prior art keywords
- piston
- cylinder
- piston cylinder
- butterfly valve
- chamber
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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
- F16K31/1225—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston with a plurality of pistons
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
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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
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Fluid-Driven Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a butterfly valve and a jetting device comprising the same. The butterfly valve comprises an actuator and a valve plate. The actuator comprises a piston cylinder and a first piston, wherein the first piston is assembled in the piston cylinder in a guiding and moving mode in the left-right direction. A rotary shaft connected with the valve plate is rotationally assembled on the piston cylinder, and the rotating axis of the rotary shaft is perpendicular to the left-right direction. A gear is fixedly and coaxially arranged on the rotary shaft. The right end of the first piston is provided with a first rack in engagement transmission with the gear so as to drive the valve plate to open when the first piston moves rightwards. The first piston is fixedly provided with a first piston rod, the axis of the first piston rod extends in the left-right direction, and the left end of the first piston rod penetrates out of the left side of the piston cylinder. A first limiting structure used for being matched with the piston cylinder in a limiting mode to limit the rightward moving limit of the first piston rod is arranged on the portion, located on the outer side of the piston cylinder, of the first piston rod. The invention provides the butterfly valve with the opening-angle-adjustable valve plate and the jetting device comprising the butterfly valve.
Description
Technical field
The present invention relates to butterfly valve and use the injection apparatus of this butterfly valve.
Background technique
Existing injection apparatus is as shown in Figure 1: two the output branch roads be arranged in parallel comprising power unit 14 and be connected with power unit 14, one of them exports on branch road and is provided with filter 11, throttle valve 12 and jet pump 13, another exports on branch road and is provided with pressure gauge 10 and Pneumatic butterfly valve 9, Pneumatic butterfly valve comprises final controlling element and valve plate, injection apparatus also comprises the control gas circuit be connected with final controlling element, controls gas circuit and comprises source of the gas 1, stop valve 2, selector valve 4, reduction valve 5, the gentle signal framing device 8 of throttle valve 6.During work, power unit is the fluid that system provides pressure, fluid major part flows through butterfly valve, fraction flows through jet pump, in order to ensure that jet pump is normal, effective work, fluid in the branch road of butterfly valve place must have certain pressure, therefore the valve plate of butterfly valve can not be opened completely when opening, but need to turn to certain angle, fluid in the branch road of such butterfly valve place just can have pressure, namely pressure gauge has certain pressure reading, reduction valve, throttle valve, the angle that gas signal framing device is opened for controlling butterfly valve, regulate reduction valve and throttle valve can the angle opened of regulating butterfly valve.Existing this injection apparatus Problems existing is: the open angle that butterfly valve itself is off one's feet, the open angle that must realize butterfly valve by the control gas circuit that some row such as reduction valve, throttle valve, gas signal framing device are complicated controls, cause that the component of whole injection apparatus are many, boundary dimension is large, required installing space is large and fabricating cost is higher, gas signal framing device is accurate, complicated balancing boom device in addition, cost is higher, rate of fault is high, and working life is shorter.
Summary of the invention
The object of the present invention is to provide the butterfly valve that a kind of valve plate open angle is controlled; The present invention also aims to provide a kind of injection apparatus using this butterfly valve.
In order to solve the problem, in the present invention, the technological scheme of butterfly valve is:
Butterfly valve, comprise final controlling element and valve plate, final controlling element comprise piston cylinder and in left-right direction guiding movement be assemblied in the first piston in piston cylinder, piston cylinder is rotatably equipped with the rotating shaft be connected with described valve plate that rotation axis is vertical with left and right directions, in rotating shaft, coaxial line is installed with gear, the right-hand member of first piston is provided with described meshed transmission gear with the first tooth bar driving valve plate to open when first piston moves to right, first piston is installed with left end that axis extends in left-right direction by the first piston bar passed on the left of described piston cylinder, first piston bar has for coordinating to limit first limit structure of first piston bar towards the limit that moves right with piston cylinder is spacing in the arranged outside of described piston cylinder.
Described first limit structure is nut limit structure.
Nut limit structure comprises and is sheathed on right-hand member on described first piston bar for realizing first stop collar that coordinate spacing with piston cylinder, nut limit structure also comprises first adjusting nut of spinning on described first piston bar, and the first stop collar is positioned at the right side of the first adjusting nut.
Described piston cylinder comprises the cylinder body that axis extends in left-right direction and the first end cap being fixedly arranged on cylinder body left end by screw, first end cover be installed with extend in described cylinder body for first convex edge that coordinate spacing with described first piston left end, be provided with adjustment pad between the first end cap and described cylinder body.
In piston cylinder, also guiding movement is equipped with the second piston be positioned on the right side of rotating shaft in left-right direction, second piston left end is provided with described meshed transmission gear with the second tooth bar driving valve plate to open when the second piston moves to left, second piston is installed with right-hand member that axis extends in left-right direction by the second piston rod passed on the right side of piston rod, the second piston rod has for limiting the second piston rod towards the second limit structure moving left the limit with piston cylinder spacing cooperation in the arranged outside of described piston cylinder.
Piston cylinder is separated into left chamber, middle chamber and right chamber by first, second piston, and the chamber wall of left chamber, middle chamber and right chamber is provided with gas port.
In the present invention, the technological scheme of injection apparatus is:
Injection apparatus, comprise two output branch roads be arranged in parallel, one of them exports on branch road and is provided with butterfly valve, another one exports on branch road and is provided with jet pump, butterfly valve comprises final controlling element and valve plate, final controlling element comprise piston cylinder and in left-right direction guiding movement be assemblied in the first piston in piston cylinder, piston cylinder is rotatably equipped with the rotating shaft be connected with described valve plate that rotation axis is vertical with left and right directions, in rotating shaft, coaxial line is installed with gear, the right-hand member of first piston is provided with described meshed transmission gear with the first tooth bar driving valve plate to open when first piston moves to right, first piston is installed with left end that axis extends in left-right direction by the first piston bar passed on the left of described piston cylinder, first piston bar has for coordinating to limit first limit structure of first piston bar towards the limit that moves right with piston cylinder is spacing in the arranged outside of described piston cylinder.
Described first limit structure is nut limit structure, nut limit structure comprises and is sheathed on right-hand member on described first piston bar for realizing first stop collar that coordinate spacing with piston cylinder, nut limit structure also comprises first adjusting nut of spinning on described first piston bar, and the first stop collar is positioned at the right side of the first adjusting nut.
Described piston cylinder comprises the cylinder body that axis extends in left-right direction and the first end cap being fixedly arranged on cylinder body left end by screw, first end cover be installed with extend in described cylinder body for first convex edge that coordinate spacing with described first piston left end, be provided with adjustment pad between the first end cap and described cylinder body.
In piston cylinder, also guiding movement is equipped with the second piston be positioned on the right side of rotating shaft in left-right direction, second piston left end is provided with described meshed transmission gear with the second tooth bar driving valve plate to open when the second piston moves to left, second piston is installed with right-hand member that axis extends in left-right direction by the second piston rod passed on the right side of piston rod, second piston rod have for limiting the second piston rod towards the second limit structure moving left the limit with piston cylinder spacing cooperation in the arranged outside of described piston cylinder, first, piston cylinder is separated into left chamber by the second piston, middle chamber and right chamber, left chamber, the chamber wall of middle chamber and right chamber is provided with gas port.
Beneficial effect of the present invention is: first piston is towards when moving right, first rack and pinion engagement driving drives valve plate to open to make rotating shaft, and the limit that moves to right of first piston can be adjusted by the position arranging the first limit structure, thus control the open angle of valve plate, realized the control of valve plate open angle by the first limit structure in the present invention, the structure of whole butterfly valve is simple, and valve plate open angle is also easy to realize controlling.
Accompanying drawing explanation
Fig. 1 is the structural representation of background technique of the present invention;
Fig. 2 is the structural representation of an embodiment of injection apparatus in the present invention;
Fig. 3 is the structural representation of butterfly valve in Fig. 2, is also the structural representation of an embodiment of butterfly valve in the present invention simultaneously;
The cooperation schematic diagram of first, second rack and pinion when Fig. 4 is a kind of open angle of valve plate in Fig. 3;
The cooperation schematic diagram of first, second rack and pinion when Fig. 5 is another open angle of valve plate in Fig. 3.
Embodiment
The embodiment of injection apparatus is as shown in Fig. 2 ~ 5: injection apparatus comprises the power unit 55 for providing hydraulic fluid, power unit can be pump, power unit belongs to its concrete structure of prior art and no longer describes in detail, power unit is connected with two output branch roads be arranged in parallel, one of them exports on branch road and is provided with filter 52, throttle valve 53 and jet pump 54, another one exports on branch road and is provided with pressure gauge 50 and butterfly valve 51, butterfly valve is the Pneumatic butterfly valve comprising final controlling element and valve plate, injection apparatus also comprises the control gas circuit controlling final controlling element action, control gas circuit and comprise source of the gas 46, stop valve 47, selector valve 49, final controlling element comprise piston cylinder and in left-right direction guiding movement be assemblied in first piston 26 in piston cylinder and the second piston 31, in first piston on piston cylinder, the rotating shaft be connected with valve plate that rotation axis is vertical with left and right directions is rotatably equipped with between second piston, rotating shaft is installed with gear 28 by flat key 29 coaxial line, the right-hand member of first piston 26 is provided with meshed transmission gear with the first tooth bar 41 driving valve plate to open when first piston moves to right, the left end of the second piston 31 is provided with meshed transmission gear with the second tooth bar 30 driving valve plate to open when first piston moves to left, first, piston cylinder is separated into left chamber by the second piston, middle chamber and right chamber, left chamber, the chamber wall of middle chamber and right chamber is provided with gas port, selector valve is connected with each gas port, the gas port of middle chamber is positioned at the middle part of piston cylinder.Piston cylinder comprises the cylinder body 27 that axis extends in left-right direction and the first end cap 25 and the second end cap 34 being fixed on two ends, cylinder body left and right by screw 23, first end cover be installed with extend in cylinder body for first convex edge that coordinate spacing with first piston left end, second end cap is installed with extend in cylinder body for second convex edge that coordinate spacing with the second piston right-hand member, be respectively arranged with the first adjustment pad 44 and second between the first end cap and cylinder body and between the second end cap and cylinder body and regulate pad 40.First piston is installed with left end that axis extends in left-right direction by the first piston bar 21 passed on the left of described first end cap, first piston bar coordinates with the first end cap pilot seal, first piston bar have for coordinating to limit first limit structure of first piston bar towards the limit that moves right with piston cylinder is spacing in the arranged outside of piston cylinder, first limit structure is nut limit structure, nut limit structure comprises and is sheathed on right-hand member on first piston bar for realizing first stop collar 21 that coordinate spacing with piston cylinder, nut limit structure also comprises first adjusting nut 19 of spinning on first piston bar, first stop collar is positioned at the right side of the first adjusting nut, first adjusting nut has two.Second piston is installed with right-hand member that axis extends in left-right direction by the second piston rod 36 passed on the right side of the second end cap, second piston rod coordinates with the second end cap pilot seal, on second piston rod in the arranged outside of piston cylinder have for piston cylinder spacing coordinate to limit the and piston rod towards the second limit structure moving left the limit, second limit structure comprises and is sheathed on left end on the second piston rod for realizing second stop collar 37 that coordinate spacing with piston cylinder, second limit structure also comprises second adjusting nut 39 of spinning on the second piston rod, second stop collar is positioned at the left side of the second adjusting nut, second adjusting nut has two.Figure middle term 24 represents packing ring; Figure middle term 43,42,32,33,45 and 35 all represents seal ring.
During work, the pressure flow body major part that power unit provides flows through butterfly valve, fraction flows through filter, throttle valve and jet pump, in order to ensure that butterfly valve place branch road has certain pressure and pressure gauge has certain reading, the valve plate of butterfly valve can not be opened completely, the opening degree control procedure of valve plate is, regulate the position of the first adjusting nut and the second adjusting nut as required, so just can adjust the limit that moves to left of the move to right limit and second piston of first piston, the pressurized air provided by source of the gas is through stop valve, selector valve flows to the final controlling element of butterfly valve, if middle chamber is vented, left, right chamber air inlet, then gear driven rotating shaft rotates counterclockwise, valve plate is opened, when the first stop collar right-hand member, when second stop collar left end top is to piston cylinder, valve plate arrives the maximum opening limit.When power unit quits work, when needing butterfly valve to close completely, selector valve commutates, middle chamber air inlet, left and right chamber vent, first piston is towards moving left, and the second piston towards moving right, thus makes rotating shaft drive valve plate to rotate clockwise, valve plate is closed, now the first convex edge can limit the limit that moves to left of first piston, and the second convex edge can limit the limit that moves to right of the second piston, by the closed position adjusting the first end cap, pad between the second end cap and cylinder body can adjust butterfly valve.
Just can realize butterfly valve opening without the need to the control of complexity in the present invention controlled, the structure of butterfly valve and whole injection apparatus is simple, without the need to taking larger installing space, and without the need to using accurate device, greatly reduces fabricating cost and the maintenance cost of injection apparatus.
In other embodiment of this injection apparatus: the number of first, second adjusting nut can also be one, three or other number; Certainly first, second stop collar can not also be established, and now can directly use the first adjusting nut to limit the limit that moves to right of first piston, directly uses the second adjusting nut to limit the limit that moves to left of the second piston; Certain first limit structure may not be nut limit structure, such as be pin limit structure, spaced apartly in left-right direction on first piston bar be provided with multiple pin hole, by plug-in mounting pin in corresponding pin hole realize limiting first piston towards moving right the limit; When the maximum opening limit that the Environmental Conditions of butterfly valve fixes i.e. valve plate is fixed, the first limit structure can also be fixedly welded on the block on first piston bar; Second piston, the second tooth bar and the second piston rod all can not be established; First end cap, adjustment pad between the second end cap and cylinder body also can not be established; Butterfly valve is not Pneumatic butterfly valve yet, now first, second piston move left and right can't help pressurized air control, the driving element that electric pushrod, cylinder etc. can be used can to export linearly operating moves to drive first, second piston.
The embodiment of butterfly valve is as shown in Fig. 2 ~ 5: the concrete structure of butterfly valve is identical with the butterfly valve described in above-mentioned each injection apparatus embodiment, is not described in detail at this.
Claims (10)
1. butterfly valve, comprise final controlling element and valve plate, it is characterized in that: final controlling element comprise piston cylinder and in left-right direction guiding movement be assemblied in the first piston in piston cylinder, piston cylinder is rotatably equipped with the rotating shaft be connected with described valve plate that rotation axis is vertical with left and right directions, in rotating shaft, coaxial line is installed with gear, the right-hand member of first piston is provided with described meshed transmission gear with the first tooth bar driving valve plate to open when first piston moves to right, first piston is installed with left end that axis extends in left-right direction by the first piston bar passed on the left of described piston cylinder, first piston bar has for coordinating to limit first limit structure of first piston bar towards the limit that moves right with piston cylinder is spacing in the arranged outside of described piston cylinder.
2. butterfly valve according to claim 1, is characterized in that: described first limit structure is nut limit structure.
3. butterfly valve according to claim 2, it is characterized in that: nut limit structure comprises and is sheathed on right-hand member on described first piston bar for realizing first stop collar that coordinate spacing with piston cylinder, nut limit structure also comprises first adjusting nut of spinning on described first piston bar, and the first stop collar is positioned at the right side of the first adjusting nut.
4. butterfly valve according to claim 1, it is characterized in that: described piston cylinder comprises the cylinder body that axis extends in left-right direction and the first end cap being fixedly arranged on cylinder body left end by screw, first end cover be installed with extend in described cylinder body for first convex edge that coordinate spacing with described first piston left end, be provided with adjustment pad between the first end cap and described cylinder body.
5. the butterfly valve according to claim 1 ~ 4 any one, it is characterized in that: in piston cylinder, also guiding movement is equipped with the second piston be positioned on the right side of rotating shaft in left-right direction, second piston left end is provided with described meshed transmission gear with the second tooth bar driving valve plate to open when the second piston moves to left, second piston is installed with right-hand member that axis extends in left-right direction by the second piston rod passed on the right side of piston rod, second piston rod has for limiting the second piston rod towards the second limit structure moving left the limit with piston cylinder spacing cooperation in the arranged outside of described piston cylinder.
6. butterfly valve according to claim 5, is characterized in that: piston cylinder is separated into left chamber, middle chamber and right chamber by first, second piston, and the chamber wall of left chamber, middle chamber and right chamber is provided with gas port.
7. injection apparatus, comprise two output branch roads be arranged in parallel, one of them exports on branch road and is provided with butterfly valve, another one exports on branch road and is provided with jet pump, butterfly valve comprises final controlling element and valve plate, it is characterized in that: final controlling element comprise piston cylinder and in left-right direction guiding movement be assemblied in the first piston in piston cylinder, piston cylinder is rotatably equipped with the rotating shaft be connected with described valve plate that rotation axis is vertical with left and right directions, in rotating shaft, coaxial line is installed with gear, the right-hand member of first piston is provided with described meshed transmission gear with the first tooth bar driving valve plate to open when first piston moves to right, first piston is installed with left end that axis extends in left-right direction by the first piston bar passed on the left of described piston cylinder, first piston bar has for coordinating to limit first limit structure of first piston bar towards the limit that moves right with piston cylinder is spacing in the arranged outside of described piston cylinder.
8. injection apparatus according to claim 7, it is characterized in that: described first limit structure is nut limit structure, nut limit structure comprises and is sheathed on right-hand member on described first piston bar for realizing first stop collar that coordinate spacing with piston cylinder, nut limit structure also comprises first adjusting nut of spinning on described first piston bar, and the first stop collar is positioned at the right side of the first adjusting nut.
9. injection apparatus according to claim 7, it is characterized in that: described piston cylinder comprises the cylinder body that axis extends in left-right direction and the first end cap being fixedly arranged on cylinder body left end by screw, first end cover be installed with extend in described cylinder body for first convex edge that coordinate spacing with described first piston left end, be provided with adjustment pad between the first end cap and described cylinder body.
10. the injection apparatus according to claim 6 ~ 9 any one, it is characterized in that: in piston cylinder, also guiding movement is equipped with the second piston be positioned on the right side of rotating shaft in left-right direction, second piston left end is provided with described meshed transmission gear with the second tooth bar driving valve plate to open when the second piston moves to left, second piston is installed with right-hand member that axis extends in left-right direction by the second piston rod passed on the right side of piston rod, second piston rod have for limiting the second piston rod towards the second limit structure moving left the limit with piston cylinder spacing cooperation in the arranged outside of described piston cylinder, first, piston cylinder is separated into left chamber by the second piston, middle chamber and right chamber, left chamber, the chamber wall of middle chamber and right chamber is provided with gas port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510653085.8A CN105257895B (en) | 2015-10-10 | 2015-10-10 | Butterfly valve and the injection apparatus using the butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510653085.8A CN105257895B (en) | 2015-10-10 | 2015-10-10 | Butterfly valve and the injection apparatus using the butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105257895A true CN105257895A (en) | 2016-01-20 |
| CN105257895B CN105257895B (en) | 2018-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510653085.8A Expired - Fee Related CN105257895B (en) | 2015-10-10 | 2015-10-10 | Butterfly valve and the injection apparatus using the butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105257895B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202950A (en) * | 2021-04-07 | 2021-08-03 | 中国长江三峡集团有限公司 | High-flow linkage gate type reversing valve and control method |
| CN116906660A (en) * | 2023-08-10 | 2023-10-20 | 山西蚂蚁超动力有限责任公司 | Pin-semicircular arc groove type heavy-load hydraulic driving head |
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| US5325888A (en) * | 1993-04-30 | 1994-07-05 | Stary Gary M | Pipeline valve transmission apparatus |
| CN2711490Y (en) * | 2004-03-26 | 2005-07-20 | 沈阳恒屹实业有限公司 | Pneuamtic actuator for valve |
| CN201391672Y (en) * | 2009-03-26 | 2010-01-27 | 济南高新华能气动液压有限公司 | Return adjustable pneumatic butterfly valve actuator |
| CN201934764U (en) * | 2011-03-03 | 2011-08-17 | 浙江中德自控阀门有限公司 | Air-driving multistage actuating mechanism |
| CN202962118U (en) * | 2012-07-25 | 2013-06-05 | 中色科技股份有限公司 | Mixing tank control system of plate filter |
| CN203258159U (en) * | 2013-05-23 | 2013-10-30 | 浙江博恩自控阀门有限公司 | Sectional controllable pneumatic actuator |
| CN103410985A (en) * | 2013-07-16 | 2013-11-27 | 鞍山电磁阀有限责任公司 | Integrated pneumatic vent butterfly valve |
-
2015
- 2015-10-10 CN CN201510653085.8A patent/CN105257895B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325888A (en) * | 1993-04-30 | 1994-07-05 | Stary Gary M | Pipeline valve transmission apparatus |
| CN2711490Y (en) * | 2004-03-26 | 2005-07-20 | 沈阳恒屹实业有限公司 | Pneuamtic actuator for valve |
| CN201391672Y (en) * | 2009-03-26 | 2010-01-27 | 济南高新华能气动液压有限公司 | Return adjustable pneumatic butterfly valve actuator |
| CN201934764U (en) * | 2011-03-03 | 2011-08-17 | 浙江中德自控阀门有限公司 | Air-driving multistage actuating mechanism |
| CN202962118U (en) * | 2012-07-25 | 2013-06-05 | 中色科技股份有限公司 | Mixing tank control system of plate filter |
| CN203258159U (en) * | 2013-05-23 | 2013-10-30 | 浙江博恩自控阀门有限公司 | Sectional controllable pneumatic actuator |
| CN103410985A (en) * | 2013-07-16 | 2013-11-27 | 鞍山电磁阀有限责任公司 | Integrated pneumatic vent butterfly valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202950A (en) * | 2021-04-07 | 2021-08-03 | 中国长江三峡集团有限公司 | High-flow linkage gate type reversing valve and control method |
| CN116906660A (en) * | 2023-08-10 | 2023-10-20 | 山西蚂蚁超动力有限责任公司 | Pin-semicircular arc groove type heavy-load hydraulic driving head |
| CN116906660B (en) * | 2023-08-10 | 2023-12-22 | 山西蚂蚁工业有限责任公司 | Pin-semicircular arc groove type heavy-load hydraulic driving head |
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| Publication number | Publication date |
|---|---|
| CN105257895B (en) | 2018-02-16 |
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