CN104265714A - Piston actuator and automatic reversing valve thereof - Google Patents
Piston actuator and automatic reversing valve thereof Download PDFInfo
- Publication number
- CN104265714A CN104265714A CN201410529723.0A CN201410529723A CN104265714A CN 104265714 A CN104265714 A CN 104265714A CN 201410529723 A CN201410529723 A CN 201410529723A CN 104265714 A CN104265714 A CN 104265714A
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- Prior art keywords
- piston
- locking
- valve core
- communicated
- reversing valve
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention relates to a piston actuator and an automatic reversing valve thereof. The piston actuator and automatic reversing valve comprises a reversing valve body and a reversing valve plug, wherein the reversing valve body is provided with a reversing valve cavity extending in the lateral direction, and the reversing valve plug is slidably assembled in the reversing valve cavity. A left annular seal cavity, a middle annular seal cavity and a right annular seal cavity which are independent from each other are arranged between the reversing valve plug and the reversing valve body. A fluid inlet, a left exhaust port, a right exhaust port, a left communicating port and a right communicating port are arranged on the reversing valve body, wherein the left communicating port and the right communicating port are used for being communicated with a left side cavity and a right side cavity which are disposed on two sides of an actuation piston respectively, and the fluid inlet is constantly communicated with the middle seal cavity. When the reversing valve plug is located at the left end of the reversing valve body, the left communicating port is communicated with the middle seal cavity; when the reversing valve plug is located at the right end of the reversing valve body, the right communicating port is communicated with the middle seal cavity. According to the piston actuator and the automatic reversing valve thereof, only straight holes are needed to be additionally arranged at the corresponding positions of the reversing valve body, so the structure of the automatic reversing valve is optimized. In addition, the automatic reversing valve is simple to process and low in production cost so that the automatic reversing valves can be produced on a large scale, and production efficiency is improved.
Description
Technical field
The present invention relates to piston actuator and automatic diverter valve thereof.
Background technique
In hydraulic pressure, the piston actuator such as pneumatic, usually actuator is needed to commutate continuously, the general continuous commutation realizing actuator by installing solenoid directional control valve additional in prior art, due to solenoid directional control valve need with corresponding electric controller with the use of, which not only adds user cost, but also the safety and stability of system can be reduced.
The pneumatic actuating device of automobile wiper belongs to a kind of concrete utilization of piston actuator, Chinese patent literature CN203686246U discloses a kind of locomotive Pneumatic window cleaner automatic reverse control valve, this automatic reverse control valve realizes windscreen wiper to drive the reciprocating control valve of cylinder, this automatic reverse control valve comprises valve body and piston, piston there are three independently annular seal zones, valve body there are two suction ports communicated, two independent air outlets control mouth and an exhaust port be communicated with air with two independent valves, when piston is in piston cavity left position and right end position, suction port to be communicated with corresponding air outlet by different annular seal zones thus alternately to provide pressurized air to the two ends chamber of the piston of external cylinder, drive the continuous to-and-fro motion of external execution piston, the valve control mouth drived control valve piston that pressurized air also turns back to correspondence by external gas cylinder simultaneously moves.This automatic reverse control valve adopts two suction ports be communicated with, and is communicated with the total suction port on small end cover by two suction ports by arranging passage on valve body, makes the air passage connecting structure of the intake and exhaust of this valve complexity, difficulty of processing large.
Summary of the invention
The object of this invention is to provide piston actuator, to solve the technical problem of pneumatic automatic diverter valve intake and exhaust air passage connecting structure complexity in existing piston actuator.Meanwhile, present invention also offers the automatic diverter valve of this piston actuator.
For achieving the above object, the present invention adopts following technological scheme: automatic diverter valve, comprise the commutation valve body with the commutation valve pocket extended in left-right direction and the changeover valve core be slidedly assemblied in commutation valve pocket, three, left, center, right independently annular seal space is provided with between changeover valve core and commutation valve body, described commutation valve body is provided with a fluid inlet, two, left and right exhaust port and two, left and right and is respectively used to the connecting port with the left and right sides chamber performing piston both sides, and described fluid inlet is communicated with middle Seal cage all the time; When changeover valve core is positioned at the left end of commutation valve body, left connection mouth is communicated with middle Seal cage; When changeover valve core is positioned at the right-hand member of commutation valve body, right connecting port is communicated with middle Seal cage.
The two ends end face of described changeover valve core is sphere.
A left side for described commutation valve body, at least one end in right two ends is removable is provided with locking cylinder, the locking piston that locking cylinder comprises locking cylinder body and moves left and right in the locking piston cavity of locking cylinder body, locking piston is installed with piston rod, the mounting end towards described changeover valve core of locking cylinder body is provided with the pilot hole being communicated with described commutation valve pocket and locking piston cavity, described piston rod guiding is slidedly assemblied in pilot hole, locking cylinder body is provided with the opening of for fluid coming in and going out that be communicated with corresponding to two chambers of locking piston both sides respectively, when locking piston moves the locking realizing changeover valve core with the changeover valve core top press fit being in the valve pocket corresponding end that commutates under fluid matasomatism towards changeover valve core.
Described mounting end spinning is on described commutation valve body.
Piston actuator, comprise execution piston cylinder and automatic diverter valve that axis extends all in left-right direction, perform piston cylinder and comprise the execution piston performing cylinder body and move left and right in the execution piston cavity of execution cylinder body, automatic diverter valve comprises the commutation valve body with commutation valve pocket and the changeover valve core be slidedly assemblied in commutation valve pocket, a left side is provided with between changeover valve core and commutation valve body, in, three, the right side independently annular seal space, described commutation valve body is provided with a fluid inlet, two exhaust ports in left and right and two, left and right respectively with perform the left sides of piston both sides, the connecting port that right chamber is communicated with, described fluid inlet is communicated with middle Seal cage all the time, when changeover valve core is positioned at the left end of commutation valve body, left connection mouth is communicated with middle Seal cage, promotes to perform piston and move right after fluid enters the chamber performed on the left of piston, when changeover valve core is positioned at the right-hand member of commutation valve body, right connecting port is communicated with middle Seal cage, promotes to perform piston and be moved to the left after fluid enters the chamber performed on the right side of piston.
The two ends end face of described changeover valve core is sphere.
A left side for described commutation valve body, at least one end in right two ends is removable is provided with locking cylinder, the locking piston that locking cylinder comprises locking cylinder body and moves left and right in the locking piston cavity of locking cylinder body, locking piston is installed with piston rod, the mounting end towards described changeover valve core of locking cylinder body is provided with the pilot hole being communicated with described commutation valve pocket and locking piston cavity, described piston rod guiding is slidedly assemblied in pilot hole, locking cylinder body is provided with the opening of for fluid coming in and going out that be communicated with corresponding to two chambers of locking piston both sides respectively, when locking piston moves the locking realizing changeover valve core with the changeover valve core top press fit being in the valve pocket corresponding end that commutates under fluid matasomatism towards changeover valve core.
Described mounting end spinning is on described commutation valve body.
Automatic diverter valve of the present invention ensure that on auto reversive basis, only a left side need be set between commutation valve body and changeover valve core, in, three, the right side independently annular seal space, and a fluid inlet be communicated with middle Seal cage is all the time set on commutation valve body, by being moved to the left of changeover valve core, the left connection mouth be communicated with execution piston left chamber be arranged on commutation valve body is communicated with fluid inlet in middle Seal cage, by changeover valve core move right by be arranged on commutation valve body with perform the right connecting port that piston right chamber is communicated with and be communicated with fluid inlet in middle Seal cage, just eliminate the gas-entered passageway of the complexity offered on commutation valve body in documents, because automatic diverter valve of the present invention only need set up straight hole at the corresponding position of commutation valve body, not only optimize the structure of automatic diverter valve, and simply again reduce processing cost owing to processing, convenient production in enormous quantities, enhance productivity.
Automatic diverter valve of the present invention is also set up on commutation valve body can the locking cylinder of independent dismounting, the stop position of incompatible adjustable change valve core is press-fitted by the locking piston of locking cylinder and the top of changeover valve core, make that the self-locking structure of this automatic diverter valve is simple, easy accessibility, decrease the labor intensity of workman, can be mass-produced, reduce processing cost.And without the need to setting up solenoid valve and corresponding electric controller in hydraulic pressure or the fluid system such as pneumatic, improve the reliability of fluid system, safety and stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of piston actuator in the present invention.
Embodiment
Piston actuator as shown in Figure 1, comprise execution piston cylinder and automatic diverter valve that axis extends all in left-right direction, perform piston cylinder and comprise execution cylinder body, perform cylinder body and have execution piston cavity, in execution piston cavity, slidable fit has the execution piston 1 along moving left and right.Automatic diverter valve commutation valve body 3, commutation valve body 3 has the commutation valve pocket extended in left-right direction, and in commutation valve pocket, slidable fit has changeover valve core 4, is provided with three, left, center, right independently annular seal space between changeover valve core 4 and commutation valve body 3.
At the two ends, left and right of commutation valve body, locking cylinder is all installed, the locking piston that locking cylinder comprises locking cylinder body and moves left and right in the locking piston cavity of locking cylinder body 2, locking piston is installed with piston rod, locking cylinder body has the mounting end towards changeover valve core, mounting end is provided with the pilot hole being communicated with commutation valve pocket and locking piston cavity, and above-mentioned piston rod guiding is slidedly assemblied in this pilot hole.
Above-mentioned locking piston is provided with seal ring, and the piston cavity of locking cylinder body is divided into two chambers by locking piston, i.e. action chamber and return chamber, and locking cylinder body is provided with the opening of coming in and going out with the confession fluid of two chamber respectively.In the present embodiment, the action chamber of left side locking cylinder is provided with opening, return chamber is provided with opening, right side locking cylinder action chamber is provided with opening, return chamber is provided with opening.
In order to easy accessibility, by above-mentioned mounting end spinning on commutation valve body, certainly, in other embodiments, also mounting end can be inserted into the radial plug-in mounting lock bolt at locking cylinder after in commutation valve body.In order to prevent this automatic diverter valve from leaking gas, seal ring is set between above-mentioned mounting end and the surface of contact of commutation valve body.
Commutation valve body is provided with the left commutation mouth B be positioned on the left of changeover valve core and the right commutation mouth C be positioned on the right side of changeover valve core, commutation valve body 3 is also provided with fluid inlet P, two, left and right exhaust port, left connection mouth A and right connecting port D, and fluid inlet P is communicated with middle Seal cage all the time.Left connection mouth A is by the chamber on the left of passage X and above-mentioned execution piston, and right connecting port D is by passage W and the chamber performed on the right side of piston.
In addition, in order to ensure when changeover valve core 4 moves to the end position on left side or right side, between the mounting end and changeover valve core of locking cylinder, still there is cavity to hold the fluid flowed into from the mouth that commutates, therefore the two ends end face of changeover valve core 4 is set to sphere, certainly, in other embodiments, also the conical surface can be set to.
The structure of automatic diverter valve of the present invention is consistent with the structure of the automatic diverter valve in Fig. 1, does not repeat them here.
The present invention in use, when changeover valve core 4 is at illustrated left position, fluid inlet P, left connection mouth A are all communicated with the middle Seal cage of changeover valve core, and right connecting port D, right exhaust port are all communicated with the right Seal cage of changeover valve core, and left bank exports by shutoff in the left Seal cage of changeover valve core.When fluid inlet P air inlet, pressurized air enters the chamber performed on the left of piston through passage X, and promotion execution piston moves right, and after the gas performed in the chamber on the right side of piston is pressed into passage W, enters air successively through right connecting port D, right exhaust port.
In the process that execution piston 1 moves right, when performing the passage Y of left end through being communicated with left commutation mouth B of piston 1, the pressurized air performed in the left chamber of piston enters in the valve pocket on the left of changeover valve core through left commutation mouth B, passage Z now owing to being communicated with right commutation mouth C is communicated with air, pressurized gas promotes changeover valve core and moves right, gas in the right side valve pocket of changeover valve core through right commutation mouth C discharged to air, until changeover valve core move to right side end position.
When changeover valve core 4 arrives right end position, fluid inlet P, right connecting port D are all communicated with the middle Seal cage of changeover valve core, left connection mouth A, left bank outlet be all communicated with the left Seal cage of changeover valve core, right exhaust port by shutoff in the right Seal cage of selector valve.When fluid inlet P air inlet, pressurized air enters the chamber performed on the right side of piston through passage W, and promotes to perform piston to left movement, after the gas performed in the chamber on the left of piston is pressed into passage X, enters air successively through left connection mouth A, left bank outlet.
In the process that execution piston 1 is moved to the left, when performing the right-hand member of piston 1 through passage Z, the pressurized air performed in piston right chamber enters in the valve pocket on the right side of changeover valve core through right commutation mouth C, now because passage Y is communicated with air, pressurized gas promotes changeover valve core to moving to left, gas in chamber on the left of changeover valve core through left commutation mouth B discharged to air, until changeover valve core move to left side end position.
Be more than the commutation process that of this automatic diverter valve is complete, product repeats above commutation process in the course of the work.In the movement process of automatic diverter valve, user carrys out the motion speed of adjustable change valve core by controlling compressed-air actuated flow.Power source of the present invention is illustrated for gas, but user can select liquid as power source according to the condition of actual field of employment.
When needing the changeover valve core 4 of this automatic diverter valve to be locked in the left position shown in Fig. 1, only need pass into pressurized air to opening, pressurized air promotes locking piston 5 to left movement after entering action chamber, the pressurized air of return chamber is discharged from opening.Power on changeover valve core 4 left end is acted on because the power acted on locking piston 5 is greater than pressurized air, changeover valve core 4 is blocked piston 5 top and presses and be locked to the end position in left side, the commutation action of changeover valve core 4 is terminated, and now actuator 1 is locked in right-hand member.When needing the locking cancelling locking piston 5 pairs of changeover valve cores 4, make changeover valve core 4 again automatic reverse time, user can select directly be released by the pressure of opening according to field condition, promotes locking piston 5 return by changeover valve core 4.
When needing the right end position changeover valve core 4 of this automatic diverter valve being locked in commutation valve body, only pressurized gas need be passed into opening.When need cancel left side locking piston to the locking of changeover valve core 4, make changeover valve core 4 again automatic reverse time, user can according to field condition select directly the pressure of opening is released, by changeover valve core 4 promote on the left of locking piston return.
Be more than the preferred embodiments of the present invention, in other embodiments, automatic diverter valve also can according to the requirement of the intermittent duty of the actuator of field of employment or piston, and be selected only to arrange locking cylinder at the left end of commutation valve body or only arrange locking cylinder at the right-hand member of commutation valve body.Those skilled in the art also can in varied situations, and carry out equivalent replacement according to the design general knowledge of related domain, it is all within protection scope of the present invention.
Claims (8)
1. automatic diverter valve, comprise the commutation valve body with the commutation valve pocket extended in left-right direction and the changeover valve core be slidedly assemblied in commutation valve pocket, three, left, center, right independently annular seal space is provided with between changeover valve core and commutation valve body, it is characterized in that: described commutation valve body is provided with a fluid inlet, two, left and right exhaust port and two, left and right and is respectively used to the connecting port with the left and right sides chamber performing piston both sides, and described fluid inlet is communicated with middle Seal cage all the time; When changeover valve core is positioned at the left end of commutation valve body, left connection mouth is communicated with middle Seal cage; When changeover valve core is positioned at the right-hand member of commutation valve body, right connecting port is communicated with middle Seal cage.
2. automatic diverter valve according to claim 1, is characterized in that: the two ends end face of described changeover valve core is sphere.
3. automatic diverter valve according to claim 1 and 2, it is characterized in that: a left side for described commutation valve body, at least one end in right two ends is removable is provided with locking cylinder, the locking piston that locking cylinder comprises locking cylinder body and moves left and right in the locking piston cavity of locking cylinder body, locking piston is installed with piston rod, the mounting end towards described changeover valve core of locking cylinder body is provided with the pilot hole being communicated with described commutation valve pocket and locking piston cavity, described piston rod guiding is slidedly assemblied in pilot hole, locking cylinder body is provided with the opening of for fluid coming in and going out that be communicated with corresponding to two chambers of locking piston both sides respectively, when locking piston moves the locking realizing changeover valve core with the changeover valve core top press fit being in the valve pocket corresponding end that commutates under fluid matasomatism towards changeover valve core.
4. automatic diverter valve according to claim 3, is characterized in that: described mounting end spinning is on described commutation valve body.
5. piston actuator, comprise execution piston cylinder and automatic diverter valve that axis extends all in left-right direction, perform piston cylinder and comprise the execution piston performing cylinder body and move left and right in the execution piston cavity of execution cylinder body, automatic diverter valve comprises the commutation valve body with commutation valve pocket and the changeover valve core be slidedly assemblied in commutation valve pocket, a left side is provided with between changeover valve core and commutation valve body, in, three, the right side independently annular seal space, it is characterized in that: described commutation valve body is provided with a fluid inlet, two exhaust ports in left and right and two, left and right respectively with perform the left sides of piston both sides, the connecting port that right chamber is communicated with, described fluid inlet is communicated with middle Seal cage all the time, when changeover valve core is positioned at the left end of commutation valve body, left connection mouth is communicated with middle Seal cage, promotes to perform piston and move right after fluid enters the chamber performed on the left of piston, when changeover valve core is positioned at the right-hand member of commutation valve body, right connecting port is communicated with middle Seal cage, promotes to perform piston and be moved to the left after fluid enters the chamber performed on the right side of piston.
6. piston actuator according to claim 5, is characterized in that: the two ends end face of described changeover valve core is sphere.
7. the piston actuator according to claim 5 or 6, it is characterized in that: a left side for described commutation valve body, at least one end in right two ends is removable is provided with locking cylinder, the locking piston that locking cylinder comprises locking cylinder body and moves left and right in the locking piston cavity of locking cylinder body, locking piston is installed with piston rod, the mounting end towards described changeover valve core of locking cylinder body is provided with the pilot hole being communicated with described commutation valve pocket and locking piston cavity, described piston rod guiding is slidedly assemblied in pilot hole, locking cylinder body is provided with the opening of for fluid coming in and going out that be communicated with corresponding to two chambers of locking piston both sides respectively, when locking piston moves the locking realizing changeover valve core with the changeover valve core top press fit being in the valve pocket corresponding end that commutates under fluid matasomatism towards changeover valve core.
8. piston actuator according to claim 7, is characterized in that: described mounting end spinning is on described commutation valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529723.0A CN104265714A (en) | 2014-10-09 | 2014-10-09 | Piston actuator and automatic reversing valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529723.0A CN104265714A (en) | 2014-10-09 | 2014-10-09 | Piston actuator and automatic reversing valve thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265714A true CN104265714A (en) | 2015-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410529723.0A Pending CN104265714A (en) | 2014-10-09 | 2014-10-09 | Piston actuator and automatic reversing valve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265714A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439003A (en) * | 2016-09-23 | 2017-02-22 | 南通大学 | Lightweight piston rod |
| CN107178543A (en) * | 2017-07-26 | 2017-09-19 | 国电联合动力技术有限公司 | A kind of wind power generating set impeller locks hydraulic control system |
| CN107288943A (en) * | 2017-07-28 | 2017-10-24 | 朱明� | A kind of hydraulic actuating mechanism of automatic reverse |
| CN107339278A (en) * | 2017-08-23 | 2017-11-10 | 南通理工智能制造技术有限公司 | Stroke-controllable automatic reciprocating hydraulic cylinder |
| CN108006001A (en) * | 2017-12-29 | 2018-05-08 | 浙江洁普斯清洁设备有限公司 | A kind of reciprocating air cylinder of automatic switchover |
| CN110118210A (en) * | 2019-05-10 | 2019-08-13 | 北京丹诺威科技发展有限公司 | A kind of adjustable automatic repeatedly hydraulic cylinder of stroke |
| CN110360339A (en) * | 2019-08-09 | 2019-10-22 | 成都百分之三科技有限公司 | Automatic reversing mechanism |
| CN113232558A (en) * | 2021-04-19 | 2021-08-10 | 长沙理工大学 | Working method of multi-angle rotating automobile seat system |
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| CN88210099U (en) * | 1988-01-29 | 1988-11-09 | 东北工学院 | Hydraulic vibration exciter |
| US5490441A (en) * | 1994-01-24 | 1996-02-13 | Hallstrom; Olof A. | Automatic reciprocation of a reversible fluid pressure unit and switching valve therefor |
| CN2913704Y (en) * | 2006-03-09 | 2007-06-20 | 隋宝臣 | Diverter valve |
| CN203114778U (en) * | 2013-03-14 | 2013-08-07 | 宜昌市永庆机械有限责任公司 | Built-in type automatic reversing oil cylinder |
| CN204186665U (en) * | 2014-10-09 | 2015-03-04 | 平原机器厂（新乡） | A kind of piston actuator and automatic diverter valve thereof |
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2014
- 2014-10-09 CN CN201410529723.0A patent/CN104265714A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN88210099U (en) * | 1988-01-29 | 1988-11-09 | 东北工学院 | Hydraulic vibration exciter |
| US5490441A (en) * | 1994-01-24 | 1996-02-13 | Hallstrom; Olof A. | Automatic reciprocation of a reversible fluid pressure unit and switching valve therefor |
| CN2913704Y (en) * | 2006-03-09 | 2007-06-20 | 隋宝臣 | Diverter valve |
| CN203114778U (en) * | 2013-03-14 | 2013-08-07 | 宜昌市永庆机械有限责任公司 | Built-in type automatic reversing oil cylinder |
| CN204186665U (en) * | 2014-10-09 | 2015-03-04 | 平原机器厂（新乡） | A kind of piston actuator and automatic diverter valve thereof |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439003A (en) * | 2016-09-23 | 2017-02-22 | 南通大学 | Lightweight piston rod |
| CN106439003B (en) * | 2016-09-23 | 2019-01-08 | 南通大学 | A kind of lightweight piston bar |
| CN107178543A (en) * | 2017-07-26 | 2017-09-19 | 国电联合动力技术有限公司 | A kind of wind power generating set impeller locks hydraulic control system |
| CN107288943A (en) * | 2017-07-28 | 2017-10-24 | 朱明� | A kind of hydraulic actuating mechanism of automatic reverse |
| CN107339278A (en) * | 2017-08-23 | 2017-11-10 | 南通理工智能制造技术有限公司 | Stroke-controllable automatic reciprocating hydraulic cylinder |
| CN108006001A (en) * | 2017-12-29 | 2018-05-08 | 浙江洁普斯清洁设备有限公司 | A kind of reciprocating air cylinder of automatic switchover |
| CN108006001B (en) * | 2017-12-29 | 2023-12-12 | 山东洁普斯自动化科技有限公司 | Automatic switching reciprocating cylinder |
| CN110118210A (en) * | 2019-05-10 | 2019-08-13 | 北京丹诺威科技发展有限公司 | A kind of adjustable automatic repeatedly hydraulic cylinder of stroke |
| CN110360339A (en) * | 2019-08-09 | 2019-10-22 | 成都百分之三科技有限公司 | Automatic reversing mechanism |
| CN110360339B (en) * | 2019-08-09 | 2024-05-28 | 成都百分之三科技有限公司 | Automatic reversing mechanism |
| CN113232558A (en) * | 2021-04-19 | 2021-08-10 | 长沙理工大学 | Working method of multi-angle rotating automobile seat system |
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Application publication date: 20150107 |
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