CN104976409A - Pneumatic actuator with superposable piston cylinder modules - Google Patents
Pneumatic actuator with superposable piston cylinder modules Download PDFInfo
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- CN104976409A CN104976409A CN201510252831.2A CN201510252831A CN104976409A CN 104976409 A CN104976409 A CN 104976409A CN 201510252831 A CN201510252831 A CN 201510252831A CN 104976409 A CN104976409 A CN 104976409A
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- cylinder
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- module
- piston rod
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The invention discloses a pneumatic actuator with superposable piston cylinder modules. The pneumatic actuator can be independently formed by a basic module and can also be formed by serially connecting and superposing a basic module and the superposable piston cylinder modules adopting the same structure. The pneumatic actuator is suitable for driving air sources in various pressure ranges, can normally work on occasions with unstable-pressure driving air sources, and can be applied to actuators required to provide variable output forces. The number of the superposable piston cylinder modules can be determined according to the output force required to be provided by the pneumatic actuator and the pressures of the driving air sources; the energy consumption and the structural weight are reduced and the operation is stable and reliable; the application range is wide and the adaptability is strong; and the pneumatic actuator can be applied to open-close structures of valves, is suitable for the driving air sources in various pressure ranges, can normally work on occasions with unstable-pressure driving air sources and can also be applied to actuators required to provide variable output forces.
Description
Technical field
The present invention relates to a kind of pneumatic actuator with stackable piston-cylinder module.
Background technique
The driving bleed pressure scope difference that the fields such as current industry life use is comparatively large, and easily occurs the situation of pressure instability.And be widely used in the pneumatic actuator that valve, gate etc. have to-and-fro motion function system, structural allocation is fixed, need coupling, under air pressure range fixes, the source of the gas of stable gas pressure drives, could normally work.The pneumatic actuator that this structural allocation is fixed all can not be applicable to the driving source of the gas of various pressure range, driving the occasion cisco unity malfunction of bleed pressure shakiness, can not be applied to the actuator needing to provide variable ouput force.
Summary of the invention
The object of this invention is to provide a kind of pneumatic actuator with stackable piston-cylinder module, realization is applicable to various pressure range and drives source of the gas, driving the occasion of bleed pressure shakiness normally to work, the actuator needing to provide variable ouput force can be applied to.
The invention provides a kind of pneumatic actuator with stackable piston-cylinder module, can be made up of separately basic module, also can the stackable piston-cylinder block coupled in series superposition identical with several structures by basic module form.
Described basic module is made up of top module and bottom module, and top module is made up of plug, cylinder cap and spring, and bottom module is made up of piston, driving source of the gas connecting tube, output piston bar and cylinder seat; Described each stackable piston-cylinder module is made up of cylinder piston, cylinder piston rod and cylinder;
Described cylinder piston rod is hollow structure, two ends have thread type or seizing type to be tightly connected port, any cylinder piston rod is connected with output piston rod seal by the port that is tightly connected, any cylinder piston rod is tightly connected by be tightly connected port and plug, and any two cylinder piston rods are tightly connected by the port head and the tail that are tightly connected;
Described cylinder two ends have thread type or seizing type to be tightly connected port, any cylinder is tightly connected by be tightly connected port and cylinder seat, any cylinder is tightly connected by be tightly connected port and cylinder cap, and any two cylinders are tightly connected by the port head and the tail that are tightly connected;
The invention has the advantages that: the ouput force that must be able to provide according to pneumatic actuator and driving bleed pressure select the usage quantity of stackable piston-cylinder module; Reduce energy consumption, alleviate structure weight, working stability is reliable; Applied range, adaptable; Not only can be used for the opening-closing structure of valve, be applicable to various pressure range and drive source of the gas, driving the occasion of bleed pressure shakiness normally to work, the actuator needing to provide variable ouput force can also be applied to.
Accompanying drawing explanation
Fig. 1 is that the pneumatic actuator output piston bar of basic module and two stackable piston-cylinder modules retracts view;
Fig. 2 is that view released by the pneumatic actuator output piston bar of basic module and two stackable piston-cylinder modules;
Fig. 3 is that the pneumatic actuator configuration of basic module and two stackable piston-cylinder modules forms dislocation decomposing schematic representation;
Fig. 4 is that basic module forms separately pneumatic actuator schematic diagram;
Fig. 5 is basic module decomposing schematic representation;
Fig. 6 is stackable piston-cylinder decomposition module schematic diagram;
In figure:
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The invention provides a kind of pneumatic actuator with stackable piston-cylinder module, described pneumatic actuator can be made up of separately basic module, also can superpose and form by the stackable piston-cylinder block coupled in series identical with several structures by basic module.Composition graphs 1 ~ Fig. 3, stackable piston-cylinder module 3 overlapped in series that shown pneumatic actuator is identical with two structures by a basic module is formed; Described basic module is made up of top module 1 and bottom module 2, and the stackable piston-cylinder module 3 that two described structures are identical is connected in the middle of described top module 1 and bottom module 2.Described top module 1 is made up of plug 8, cylinder cap 10 and spring 11, and described plug 8 is for the cylinder piston rod 16 that is tightly connected, and spring 11 is positioned between the cylinder head space of cylinder cap 10 and cylinder piston 18 formation.Described bottom module 2 is made up of bottom piston 4, driving source of the gas connecting tube 6, output piston bar 7 and cylinder seat 9, described output piston bar 7 one end is called the nose end that is tightly connected, the described nose end that is tightly connected to be fixed in bottom piston 4 and to be connected with cylinder piston rod 16, realizes being communicated with of cylinder piston rod 16 and output piston bar 17 by the vent E15 of cylinder piston rod 16 end; The other end of output piston bar 17 is free end, stretches out by bottom cylinder seat 9, and the cylinder bottom space formed between described bottom piston 4 and cylinder seat 9 is communicated with and drives source of the gas connecting tube 6.The structure of described each stackable piston-cylinder module is identical, for one of them, described stackable piston-cylinder module is made up of cylinder piston 18, cylinder piston rod 16 and cylinder 17, two stackable piston-cylinder modules are adopted in the present embodiment, therefore, after two cylinders 17 are connected in series, two ends connect cylinder cap 10 and cylinder seat 9 respectively; One end of the close cylinder cap 10 of each cylinder piston rod 16 is connected and fixed with corresponding cylinder piston 18, and form cylinder space between cylinder 17, and connect plug 8 near the end of the cylinder piston rod 16 of cylinder cap 10, output piston bar 7 is connected near the end of the cylinder piston rod 16 of cylinder seat 9, cylinder bottom space and two cylinder spaces are interconnected by two vent E of two vent D14 and two cylinder piston rod 16 ends in the vent A5 on an output piston 7, two cylinder piston rod 16 circumferences, and by isolated between plug 8 and cylinder head space.Two cylinder pistons 18 lay respectively in two cylinders 17, cylinder piston 18 near cylinder cap 10 offsets with spring 11 and contacts, the elastic force of spring 11 is passed to cylinder piston rod 16, and two cylinder piston rods 16 that elastic force can be connected in series along each are successively passed to output piston bar 7; Bottom piston 4 in cylinder seat 9 is tightly connected with the nose end that is tightly connected of output piston bar 7.
Described cylinder piston rod 16 is hollow structure, two ends have thread type or seizing type to be tightly connected port, one end is axle head, the other end is nose end, the axle head of any cylinder piston rod 16 can be connected and sealed with the nose end that is tightly connected of output piston bar 7, the nose end of any cylinder piston rod 16 can be connected and sealed with plug 8, any two cylinder piston rods 16 carry out head and the tail by axle head and nose end and are tightly connected, and any cylinder piston rod 16 can be connected and sealed with the nose end excircle of any cylinder piston 18 at cylinder piston rod 16, described cylinder 17 two ends have thread type or seizing type to be tightly connected port, one end is axle head, the other end is nose end, the nose end that is tightly connected of any cylinder 17 can be connected and sealed with the axle head that is tightly connected of cylinder seat 9, the axle head that is tightly connected of any cylinder 17 can be connected and sealed with the nose end that is tightly connected of cylinder cap 10, any two cylinders 17 carry out head and the tail by be tightly connected nose end and axle head and are tightly connected, transversal dividing plate is provided with in the middle part of described cylinder 17, bulkhead through-hole 19 is provided with in the middle of transversal dividing plate, cylinder piston rod 16 can pass from bulkhead through-hole 19, and can move by opposing seal vertically, when by driving source of the gas connecting tube 6 to have the driving source of the gas of preset air pressure to the cylinder bottom space connection sealed, gas is by vent A5, vent E15 enters output piston bar 17 from cylinder bottom space successively, the hollow structure inside space of cylinder piston rod 16, bottom piston 4 and all cylinder pistons 18 are directly subject to the gas pressure that predetermined driving source of the gas provides, the elastic force of spring 11 can be overcome, move in direction along Compress Spring 11, output piston bar 7 is driven externally to provide the driving force retracted, and be finally in the state of retracting (as shown in Figure 1), when driving source of the gas air pressure to turn down from predetermined value, the gas pressure that the driving source of the gas that bottom piston 4 and all cylinder pistons 18 are subject to provides diminishes, the ability overcoming spring force dies down, move in direction along spring 11 diastole, output piston bar 7 is driven externally to provide the driving force of release, and be finally in release state (as shown in Figure 2).
Fig. 4 is the structural representation that basic module forms separately pneumatic actuator, described basic module comprises top module 1 and bottom module 2, described top module 1 comprises plug 8, cylinder cap 10 and spring 11, and described bottom module 2 comprises bottom piston 4, drives source of the gas connecting tube 6, output piston bar 7 and cylinder seat 9.Cylinder cap 10 is tightly connected by be tightly connected port and cylinder seat 9, forms air cylinder structure, and described air cylinder structure is divided between cylinder head space and cylinder bottom space two-part by described bottom piston 4 and plug 8.Described spring 11 is positioned between the cylinder head space that cylinder cap 10 and bottom piston 4 formed, and to be offseted contact spring 11 transfer elastic power by bottom piston 4.Described plug 8 is tightly connected by the nose end that is tightly connected of be tightly connected port and output piston bar 7, is also be connected and sealed outside the nose end that is tightly connected of output piston bar 7 by the port that is tightly connected between output piston bar 7 and bottom piston 4 simultaneously; The other end of output piston bar 7 is through cylinder seat 9.The cylinder bottom space forming sealing between described bottom piston 4 and cylinder seat 9 is communicated with and drives source of the gas connecting tube 6, for passing into pressurized gas in cylinder bottom space.
Described output piston bar 7 has local hollow structure at the nose end that is tightly connected, and is provided with vent A5, for being communicated with cylinder bottom space by the local hollow space of output piston bar 7 near the side of the nose end that is tightly connected; Described cylinder cap 10 sidewall being provided with vent B12, for being in communication with the outside between cylinder head space, being convenient to pneumatic actuator when starting building to do, air-breathing and exhaust to external world between cylinder head space.As shown in Figure 6, described cylinder 17 is provided with vent C13 on the sidewall of the nose end that is tightly connected, for the space formed between stackable piston-cylinder module 3 and bottom module 2 and between adjacent stackable piston-cylinder module is in communication with the outside respectively, be convenient to pneumatic actuator when starting building to do, these spaces are air-breathing and exhaust to external world; Described cylinder piston rod 16 is provided with vent D14, for being communicated with corresponding cylinder space by the hollow space of cylinder piston rod 16 on the sidewall of the nose end that is tightly connected; Described cylinder piston rod 16 is provided with vent E15 at the end face of the axle head that is tightly connected, for will series connection the local hollow space of output piston bar 7 and the mutual serial communication of hollow structure of all cylinder piston rods 16.
As shown in Figure 5, described cylinder cap 10 one end has thread type or seizing type to be tightly connected nose end, described cylinder seat 9 one end has thread type or seizing type to be tightly connected axle head, described plug 8 has thread type or seizing type to be tightly connected axle head, and described output piston bar 7 one end has thread type or seizing type to be tightly connected nose end.
Fig. 6 is stackable piston-cylinder module 3 decomposing schematic representation, and the present invention carries out modular design to stackable piston-cylinder module 3, and the structure of identical parts is consistent with the port that is tightly connected, and has interchangeability and superposability.When the available atmospheric pressure value of driving source of the gas is larger, or pneumatic actuator is when needing the ouput force that provides less, due to without the need to comparatively large driving force, namely without the need to the larger effective work area of whole pistons, therefore the visual concrete operating mode of pneumatic actuator, the less stackable piston-cylinder module 3 of selection and deployment, or the not stackable piston-cylinder module 3 of selection and deployment, be made up of separately basic module; When the available atmospheric pressure value of driving source of the gas is less, or pneumatic actuator is when needing the ouput force that provides larger, due to needs comparatively large driving force, namely the larger effective work area of whole pistons is needed, therefore visual concrete operating mode, more the stackable piston-cylinder module 3 of selection and deployment, forms pneumatic actuator with basic module.
Annexation between above-mentioned cylinder piston rod 16, output piston bar 7 and respective cylinder piston 18, bottom piston 4, according to the piston rod of routine in field and the annexation of piston, also can adopt the anatomical connectivity form of axle head provided by the invention and nose end.
Claims (4)
1. there is a pneumatic actuator for stackable piston-cylinder module, it is characterized in that: described pneumatic actuator is made up of separately basic module; Described basic module is made up of top module and bottom module, and described top module is made up of plug, cylinder cap and spring, and described bottom module is made up of bottom piston, driving source of the gas connecting tube, output piston bar and cylinder seat; Cylinder cap is tightly connected by be tightly connected port and cylinder seat, forms air cylinder structure, and described air cylinder structure is divided between cylinder head space and cylinder bottom space two-part by described bottom piston and plug; Described spring is positioned between the cylinder head space that cylinder cap and bottom piston formed, and to be offseted contact spring transfer elastic power by bottom piston; Described plug is tightly connected by the nose end that is tightly connected of be tightly connected port and output piston bar, is also be connected and sealed outside the nose end that is tightly connected of output piston bar by the port that is tightly connected between output piston bar and bottom piston simultaneously; The other end of output piston bar is through cylinder seat; The cylinder bottom space forming sealing between described bottom piston and cylinder seat is communicated with and drives source of the gas connecting tube, for passing into pressurized gas in cylinder bottom space.
2. a kind of pneumatic actuator with stackable piston-cylinder module according to claim 1, is characterized in that: the stackable piston-cylinder block coupled in series that described pneumatic actuator is identical with several structures by basic module superposes and forms; Be connected in the middle of top module and bottom module after the stackable piston-cylinder block coupled in series superposition that several structures are identical;
Described each stackable piston-cylinder module is made up of cylinder piston, cylinder piston rod and cylinder; Described cylinder piston rod is hollow structure, two ends have thread type or seizing type to be tightly connected port, any cylinder piston rod is connected with output piston rod seal by the port that is tightly connected, any cylinder piston rod is tightly connected by be tightly connected port and plug, and any two cylinder piston rods are tightly connected by the port head and the tail that are tightly connected; Described cylinder two ends have thread type or seizing type to be tightly connected port, any cylinder is tightly connected by be tightly connected port and cylinder seat, any cylinder is tightly connected by be tightly connected port and cylinder cap, and any two cylinders are tightly connected by the port head and the tail that are tightly connected;
Described plug is tightly connected cylinder piston rod, and spring is positioned between the cylinder head space that cylinder cap and cylinder piston formed; Described output piston bar one end is called the nose end that is tightly connected, and the described nose end that is tightly connected to be fixed in bottom piston and to be connected with cylinder piston rod, realizes being communicated with of cylinder piston rod and output piston bar by the vent E of cylinder piston boom end; The other end of output piston bar is free end, stretches out by bottom cylinder seat, and the cylinder bottom space formed between described bottom piston and cylinder seat is communicated with and drives source of the gas connecting tube; After two cylinders of stackable piston-cylinder module are connected in series, two ends connect cylinder cap and cylinder seat respectively; One end of the close cylinder cap of each cylinder piston rod is connected and fixed with corresponding cylinder piston, and form cylinder space between cylinder, and connect plug near the end of the cylinder piston rod of cylinder cap, output piston bar is connected near the end of the cylinder piston rod of cylinder seat, cylinder bottom space and two cylinder spaces are interconnected by two vent E of two vent D and two cylinder piston boom ends in the vent A on an output piston, two cylinder piston rod circumferences, and by isolated between plug and cylinder head space; Two cylinder pistons lay respectively in two cylinders, and the cylinder piston near cylinder cap offsets with spring and contacts, and the elastic force of spring is passed to cylinder piston rod, and two cylinder piston rods that elastic force is connected in series along each are successively passed to output piston bar; The nose end that is tightly connected of the bottom piston in cylinder seat and output piston bar is tightly connected.
3. a kind of pneumatic actuator with stackable piston-cylinder module according to claim 1, it is characterized in that: described cylinder piston rod is hollow structure, two ends have thread type or seizing type to be tightly connected port, one end is axle head, the other end is nose end, the axle head of any cylinder piston rod can be connected and sealed with the nose end that is tightly connected of output piston bar, the nose end of any cylinder piston rod can be connected and sealed with plug, any two cylinder piston rods carry out head and the tail by axle head and nose end and are tightly connected, any cylinder piston rod can be connected and sealed with the nose end excircle of any cylinder piston at cylinder piston rod, described cylinder two ends have thread type or seizing type to be tightly connected port, one end is axle head, the other end is nose end, the nose end that is tightly connected of any cylinder can be connected and sealed with the axle head that is tightly connected of cylinder seat, the axle head that is tightly connected of any cylinder can be connected and sealed with the nose end that is tightly connected of cylinder cap, and any two cylinders carry out head and the tail by be tightly connected nose end and axle head and are tightly connected, described cylinder cap one end has thread type or seizing type to be tightly connected nose end, described cylinder seat one end has thread type or seizing type to be tightly connected axle head, described plug has thread type or seizing type to be tightly connected axle head, and described output piston bar one end has thread type or seizing type to be tightly connected nose end.
4. a kind of pneumatic actuator with stackable piston-cylinder module according to claim 1, it is characterized in that: described output piston bar has local hollow structure at the nose end that is tightly connected, vent A is provided with, for being communicated with cylinder bottom space by the local hollow space of output piston bar near the side of the nose end that is tightly connected; Described cylinder cap sidewall being provided with vent B, for being in communication with the outside between cylinder head space, being convenient to pneumatic actuator when starting building to do, air-breathing and exhaust to external world between cylinder head space; Described cylinder is provided with vent C on the sidewall of the nose end that is tightly connected, for the space formed between stackable piston-cylinder module and bottom module and between adjacent stackable piston-cylinder module is in communication with the outside respectively, be convenient to pneumatic actuator when starting building to do, these spaces are air-breathing and exhaust to external world; Described cylinder piston rod is provided with vent D, for being communicated with corresponding cylinder space by the hollow space of cylinder piston rod on the sidewall of the nose end that is tightly connected; Described cylinder piston rod is provided with vent E at the end face of the axle head that is tightly connected, for will series connection the local hollow space of output piston bar and the mutual serial communication of hollow structure of all cylinder piston rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510252831.2A CN104976409A (en) | 2015-05-18 | 2015-05-18 | Pneumatic actuator with superposable piston cylinder modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510252831.2A CN104976409A (en) | 2015-05-18 | 2015-05-18 | Pneumatic actuator with superposable piston cylinder modules |
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| Publication Number | Publication Date |
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| CN104976409A true CN104976409A (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510252831.2A Pending CN104976409A (en) | 2015-05-18 | 2015-05-18 | Pneumatic actuator with superposable piston cylinder modules |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131171A (en) * | 2017-05-31 | 2017-09-05 | 苏州驱指自动化科技有限公司 | It is superimposed gold utensil cylinder |
| CN109611409A (en) * | 2018-11-07 | 2019-04-12 | 吴忠中创自控阀有限公司 | A kind of stackable cylinder actuating mechanism of modularization |
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| DE9111366U1 (en) * | 1991-09-13 | 1991-12-12 | Hagmann Maschinenbau Ag, Selzach | Multi-piston cylinder |
| CN2700623Y (en) * | 2004-06-08 | 2005-05-18 | 夏保军 | Gas inlet, outlet and blowing device of series connection cylinder |
| CN200999776Y (en) * | 2006-12-25 | 2008-01-02 | 天津七所高科技有限公司 | Resistance air cylinder for electrical resistance weld |
| CN201027722Y (en) * | 2007-03-22 | 2008-02-27 | 中日流体传动股份有限公司 | Power-up pneumatic pressure cylinder |
| CN201428659Y (en) * | 2009-06-19 | 2010-03-24 | 扬州锻压机床集团有限公司 | Air cylinder |
| CN202991679U (en) * | 2012-10-31 | 2013-06-12 | 胡泉 | Boosting pressure cylinder |
| CN203441864U (en) * | 2013-09-04 | 2014-02-19 | 匡信机械(昆山)有限公司 | Multifold force output cylinder |
| CN203796662U (en) * | 2014-04-22 | 2014-08-27 | 宁波以赛亚气动成套有限公司 | Quadruple-strength air cylinder |
-
2015
- 2015-05-18 CN CN201510252831.2A patent/CN104976409A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9111366U1 (en) * | 1991-09-13 | 1991-12-12 | Hagmann Maschinenbau Ag, Selzach | Multi-piston cylinder |
| CN2700623Y (en) * | 2004-06-08 | 2005-05-18 | 夏保军 | Gas inlet, outlet and blowing device of series connection cylinder |
| CN200999776Y (en) * | 2006-12-25 | 2008-01-02 | 天津七所高科技有限公司 | Resistance air cylinder for electrical resistance weld |
| CN201027722Y (en) * | 2007-03-22 | 2008-02-27 | 中日流体传动股份有限公司 | Power-up pneumatic pressure cylinder |
| CN201428659Y (en) * | 2009-06-19 | 2010-03-24 | 扬州锻压机床集团有限公司 | Air cylinder |
| CN202991679U (en) * | 2012-10-31 | 2013-06-12 | 胡泉 | Boosting pressure cylinder |
| CN203441864U (en) * | 2013-09-04 | 2014-02-19 | 匡信机械(昆山)有限公司 | Multifold force output cylinder |
| CN203796662U (en) * | 2014-04-22 | 2014-08-27 | 宁波以赛亚气动成套有限公司 | Quadruple-strength air cylinder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131171A (en) * | 2017-05-31 | 2017-09-05 | 苏州驱指自动化科技有限公司 | It is superimposed gold utensil cylinder |
| CN109611409A (en) * | 2018-11-07 | 2019-04-12 | 吴忠中创自控阀有限公司 | A kind of stackable cylinder actuating mechanism of modularization |
| CN109611409B (en) * | 2018-11-07 | 2020-06-16 | 吴忠中创自控阀有限公司 | Modular superposable cylinder actuating mechanism |
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Application publication date: 20151014 |
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