CN104358744B - A kind of auto lock oil cylinder - Google Patents
A kind of auto lock oil cylinder Download PDFInfo
- Publication number
- CN104358744B CN104358744B CN201410598128.2A CN201410598128A CN104358744B CN 104358744 B CN104358744 B CN 104358744B CN 201410598128 A CN201410598128 A CN 201410598128A CN 104358744 B CN104358744 B CN 104358744B
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- locking
- output shaft
- piston
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
-
- 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
-
- 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
- F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention belongs to technical field of hydraulic pressure, a kind of auto lock oil cylinder is specifically disclosed, it includes oil cylinder body, locking device, drive device and positioning sleeve, oil cylinder body is built-in with multi-stage oil cylinder.Positioning sleeve is fixed on the top of oil cylinder body, and locking device is assemblied on the output shaft of oil cylinder body to be used to lock conciliates locking output shaft.Locking device is located at positioning sleeve top, and locking device is fitted in positioning sleeve top during oil cylinder locking, the top of locking device remotely located set when oil cylinder solution is locked.Drive device is fixed on positioning sleeve by adpting flange, and locking operation is locked or solved for driving locking device.Oil cylinder of the invention can be locked after target stroke is reached to oil cylinder, stroke state is kept for a long time, simple structure of the invention, part are few, low cost, fault rate is low, be easy to remote control, in addition, multi-stage oil cylinder design ensure that oil cylinder thrust output is big.
Description
Technical field
The present invention relates to a kind of hydraulic means, more particularly to a kind of the automatic of its stroke can be kept with auto lock piston rod
Locking cylinder, belongs to technical field of hydraulic pressure.
Background technology
Hydraulic jack is that hydraulic energy is converted into mechanical energy in hydraulic means, realizes the executing agency of straight reciprocating motion.
In equipment application, party often requires that oil lacks and is reliably locked in any output services position, and long-time fixed position, and existing
Locking mode is ensured with various descaling locking circuits.The locking mode of descaling locking circuit has leakage unavoidably, so
It cannot be guaranteed that the reliability of locking.This solves this problem, the hydraulic cylinder locking device energy of the formula that designs a mechanism of the invention
The piston rod lock-bit of hydraulic jack is stopped on the position.
The content of the invention
The purpose of the present invention is directed to the problem of prior art presence, there is provided one kind can keep it with auto lock piston rod
The auto lock oil cylinder of stroke.
The technical scheme is that provide a kind of auto lock oil cylinder, its designing points is, including：
Oil cylinder body 1, its built-in first oil cylinder 10, first oil cylinder include the first cylinder barrel 101, First piston bar 102,
First piston 103, output shaft 107, the first top end cover 104 and the first bottom cover 106, first top end cover 104 are fixed on
The top of one cylinder barrel 101, the first bottom cover 106 is fixed on the bottom of the first cylinder barrel 101；One end of the output shaft 107 passes through
First top end cover 104 is stretched into the first cylinder barrel 101 and is slidingly sealed connection with the first top end cover 104；The First piston bar 102
One end and first piston 103 be fixed on and be placed in the first cylinder barrel 101, the other end and output shaft 107 of First piston bar 102
Stretch into one end connection in the first cylinder barrel 101；
Locking device 2, it is connected with the other end of output shaft 107 for locking or solving locking output shaft 107；
Drive device 3, its top for being fixed on oil cylinder body 1, drive device 3 is connected for driving with locking device 2
Locking operation is locked or solved to locking device 2.
Positioning sleeve 4, it is sleeved on output shaft 107 and is fixed with the first top end cover 104.
After hydraulic jack of the invention reaches target stroke, locking device is locked oil cylinder, and stroke is kept for a long time
State.The present invention also has improved technical scheme further below.
Further, the oil cylinder body 1 also includes at least one second oil cylinders 20, and second oil cylinder 20 includes second
Cylinder barrel 201, second piston bar 202, the top end cover 204 of second piston 203 and second, the second top end cover 204 are fixed on the first cylinder barrel
101 bottom, the second cylinder barrel 201 is fixed through the second top end cover 204 and the first cylinder barrel 101；The second piston 203 is fixed on
One end of two piston rods 202 is placed in the second cylinder barrel 201, and the other end of second piston bar 202 passes through the He of the second top end cover 204
First piston bar 102 is connected, and the top end cover 204 of second piston bar 202 and second is slidingly sealed connection, and the first bottom cover 106 is fixed
In the bottom of the second cylinder barrel 201.
Further, the First piston bar 102 and second piston bar 202 are integrally formed, the He of the First piston bar 102
The first oil circuit of the upper oil chamber of UNICOM's first piston 103 and the upper oil chamber of second piston 203 is provided with second piston bar 202, the
First hydraulic fluid port of one oil circuit is arranged in the second top end cover 204；It is provided with the First piston bar 102 and second piston bar 202
Second oil circuit of the bottom oil pocket of UNICOM's first piston 103 and the bottom oil pocket of second piston 203, the second hydraulic fluid port of the second oil circuit is set
In the second top end cover 204.
Further, the lateral surface of the one end outside the first cylinder barrel 101 of the output shaft 107 is provided with outside locking
Screw thread 23, the stroke of the length and oil cylinder of locking external screw thread 23 coordinates.
Further, the locking device 2 includes the driving wheel 21 and driven pulley 22 that are connected, and the middle part of driven pulley 22 sets
There is through hole, through hole inner side is provided with the locking internal thread 24 being engaged with locking external screw thread 23, and driven pulley 22 is sleeved on output shaft 107
Go up and be fitted in the upper surface of positioning sleeve 4.
Further, set on the side of the driving wheel 21 on groove and the side of driven pulley 22 and groove, the master are set
Driving belt is installed in the groove of driving wheel 21 and the groove of driven pulley 22..
Further, it is respectively equipped with gear on the lateral surface of the driving wheel 21 and driven pulley 22, driving wheel 21 and driven
Wheel 22 is by the meshed transmission gear.
Further, the drive device 3 includes hydraulic motor or motor, the hydraulic motor or motor
Output shaft and driving wheel 21 are coaxially connected.
Further, the stroke of the length of the driving wheel 21 and oil cylinder is adapted.
Further, the drive device 3 also include hydraulic motor or motor, reductor, the hydraulic motor or
The output shaft of motor is connected through reductor and driving wheel 21.
After hydraulic jack of the invention reaches target stroke, locking operation is carried out to oil cylinder.The mode of locking operation is to drive
Dynamic device drives driving wheel rotation, and driving wheel drives driven pulley rotary motion, and driven pulley is moved to positioning sleeve direction, and is fitted in
The upper end of positioning sleeve, i.e., lock to oil cylinder, it is not necessary to supplies hydraulic oil, and oil cylinder can also for a long time keep stroke state.Instead
Before oil cylinder is driven, tight operation is first unlocked to oil cylinder, solution locking mode of operation is that device drives driving wheel to reversely rotate, main
Driving wheel drives driven pulley counter rotational movement, and driven pulley moves to remotely located set direction, and remotely located set upper end, i.e., it is right
Oil cylinder carries out understanding locking.
Beneficial effect
Locking cylinder, keeps stroke state, locking external screw thread on the output shaft external by being arranged in oil cylinder sheet,
In driven pulley middle through-hole with the locking external screw thread locking internal thread being engaged and the positioning sleeve that is fixed on oil cylinder top,
Driven pulley is assemblied on output shaft, rotary drive wheel, moves it to or be moved away from positioning sleeve, realizes the locking operation to oil cylinder or solution
Locking operation.
The simple structure of locking device, part is few, and low cost, fault rate is low.
Cylinder thrust is big, and the built-in multi-stage oil cylinder series connection of oil cylinder body, identical input pressure realizes that oil cylinder thrust output is big.
Brief description of the drawings
Fig. 1 schematic cross-sectional views of the invention.
In figure, 1- oil cylinder bodies, the oil cylinders of 10- first, the cylinder barrels of 101- first, 102- First piston bars, 103- first pistons,
The top end covers of 104- first, the bottom covers of 106- first, 107- output shafts, 2- locking devices, the oil cylinders of 20- second, 21- driving wheels, 22-
Driven pulley, the cylinder barrels of 201- second, 202- second piston bars, 203- second pistons, the top end covers of 204- second, 23- locking external screw threads,
24- locks internal thread, 3- drive devices, 4- positioning sleeves.
Specific embodiment
In order to illustrate technical scheme and technical purpose, below in conjunction with the accompanying drawings and specific embodiment is to the present invention
It is described further.
As shown in figure 1, a kind of auto lock oil cylinder, including oil cylinder body 1, locking device 2, drive device 3 and positioning sleeve
4.Positioning sleeve 4 is assemblied on the output shaft 107 of oil cylinder body 1 using the top for being bolted to oil cylinder body 1, locking device 2
For locking or solving locking output shaft 107.Locking device 2 is located at the top of positioning sleeve 4, and locking device 2 is fitted in during oil cylinder locking
The top of positioning sleeve 4；The top of the remotely located set 4 of locking device 2 when oil cylinder solution is locked.Drive device 3 is fixed by adpting flange
On positioning sleeve, locking operation is locked or solved for driving locking device 2.The simple structure of locking device of the invention,
Part is few, and low cost, fault rate is low, realizes locking oil cylinder, keeps its stroke not change for a long time.Oil cylinder body 1 is built-in with
At least one second oil cylinders 20 of one the first oil cylinder 10 and series connection, preferably one the second oil cylinder 20, it is also possible to two or more the
Two oil cylinders 20；Oil cylinder body 1 uses built-in multi-stage oil cylinder combination, and oil cylinder thrust output is realized in identical input pressure
Increase, to meet high thrust demand.
Wherein, first oil cylinder include the first cylinder barrel 101, First piston bar 102, first piston 103, output shaft 107,
First top end cover 104 and the first bottom cover 106.First top end cover 104 is fixed on the top of the first cylinder barrel 101.It is described defeated
Stretched into the first cylinder barrel 101 by the first top end cover 104 and be slidingly sealed connection with the first top end cover 104 in one end of shaft 107.
One end of the First piston bar 102 and first piston 103 are fixed on and are placed in the first cylinder barrel 101, First piston bar 102
One end that the other end and output shaft 107 are stretched into the first cylinder barrel 101 is connected using threaded coaxial；Wherein, output shaft 107 stretches into
One end in one cylinder barrel 101 being provided with the internal thread hole of common axial line, the outside of the other end of First piston bar 102 be provided with and on
State the external screw thread that internal thread hole is engaged.The lateral surface of the one end outside the first cylinder barrel 101 of output shaft 107 is provided with lock
Tight external screw thread 23, the stroke of the length and oil cylinder of locking external screw thread 23 coordinates.Positioning sleeve 4 is sleeved on output shaft 107 and and the
One top end cover 104 is fixed using bolt.The side of positioning sleeve 4 be provided with it is multiple for be fixedly connected flange with the convex of through hole
Ear.
Wherein, second oil cylinder 20 includes that the second cylinder barrel 201, second piston bar 202, second piston 203 and second are pushed up
End cap 204., using the bottom for being bolted to the first cylinder barrel 101, the second cylinder barrel 201 is through the second top end cover for second top end cover 204
204 and first cylinder barrel 101 fix, it is preferable that between the second cylinder barrel 201 and the second top end cover 204 using screw thread coordinate fix, wherein
One end protuberance side of the second top end cover 204 is provided with external screw thread, and one end medial surface of the second cylinder barrel 201 is provided with outer with foregoing
The internal thread that screw thread is engaged.One end that the second piston 203 is fixed on second piston bar 202 is placed in the second cylinder barrel 201
Interior, the other end of second piston bar 202 is coaxially connected through the second top end cover 204 and First piston bar 102, second piston bar
202 and second top end cover 204 be slidingly sealed connection, the first bottom cover 106 is fixed on the bottom of the second cylinder barrel 201.
Further, the First piston bar 102 and second piston bar 202 are integrally formed composition piston rod.Described first
The upper oil chamber of UNICOM's first piston 103 and the upper oil chamber of second piston 203 are provided with piston rod 102 and second piston bar 202
First oil circuit, the first hydraulic fluid port of the first oil circuit is arranged in the second top end cover 204；The First piston bar 102 and second piston
The second oil circuit of the bottom oil pocket of UNICOM's first piston 103 and the bottom oil pocket of second piston 203 is provided with bar 202, the second oil circuit
Second hydraulic fluid port is arranged in the second top end cover 204.
Wherein, the locking device 2 includes the driving wheel 21 and driven pulley 22 that are connected, and the middle part of driven pulley 22 is provided with logical
Hole, through hole inner side is provided with the locking internal thread 24 being engaged with locking external screw thread 23, and driven pulley 22 is sleeved on output shaft 107 simultaneously
It is fitted in the upper surface of positioning sleeve 4.Further, the kind of drive of driving wheel 21 and driven pulley 22 is preferably the He of driving wheel 21
Gear is respectively equipped with the lateral surface of driven pulley 22, driving wheel 21 and driven pulley 22 are by the meshed transmission gear.Driving wheel
21 and the kind of drive of driven pulley 22 can also set set on groove and the lateral surface of driven pulley 22 on the lateral surface of driving wheel 21
Driving belt is installed in groove, the groove of driving wheel 21 and the groove of driven pulley 22.Preferably, the length and oil cylinder of driving wheel 21
Stroke be adapted.
Wherein, drive device 3 is used by adpting flange and is bolted on positioning sleeve 4, positioned at the top of oil cylinder body 1
Portion.Drive device 3 is hydraulic motor, and the output shaft and driving wheel 21 of the hydraulic motor are coaxially connected.One end of adpting flange
Middle part is provided with the flange first through hole that positioning sleeve 4 can be passed through, and multiple circles are provided between flange first through hole and flange periphery
Week distribution for positioning sleeve 4 on the first fastening through-hole for being engaged of lug through hole；Other end middle part is provided with drive device 3
The through hole of flange second that output shaft can be passed through, is provided with being used for for multiple circle distributions between the through hole of flange second and flange periphery
Second fastening through-hole of fixed drive device 3.Adpting flange is sleeved on positioning sleeve 4, the first fastening through-hole and the side of positioning sleeve 4
On lug on through hole fixed using bolt, hydraulic motor and the second fastening through-hole are fixed using bolt, hydraulic motor it is defeated
Shaft and driving wheel are coaxially connected.Drive device 3 can also be motor, and the output shaft and driving wheel 21 of motor are coaxial
Connection.Further, drive device 3 also includes reductor, the output shaft of the hydraulic motor or motor through reductor and
Driving wheel 21 is connected.
After hydraulic jack of the invention reaches target stroke, locking operation is carried out to oil cylinder.The mode of locking operation is control
The oil-feed direction of hydraulic motor processed, fluid motor-driven driving wheel rotation, driving wheel drive driven pulley rotary motion, driven pulley to
Positioning sleeve direction is moved, and is fitted in the upper end of positioning sleeve, i.e., oil cylinder is locked, it is not necessary to supply hydraulic oil, oil cylinder
Stroke state can for a long time be kept.Before reverse drive oil cylinder, tight operation is first unlocked to oil cylinder, solution locking mode of operation is control
The oil-feed direction of hydraulic motor processed, fluid motor-driven driving wheel is reversely rotated, and driving wheel drives driven pulley counter rotational movement,
Driven pulley is moved to remotely located set direction, and remotely located set upper end, i.e., understanding locking is carried out to oil cylinder.
Compared to the prior art, the present invention has following progressive：
1）Locking cylinder, keeps stroke state, the outer spiral shell of the locking on the output shaft external by being arranged in oil cylinder sheet
Line, in driven pulley middle through-hole with the locking external screw thread locking internal thread being engaged and the positioning that is fixed on oil cylinder top
Set, driven pulley is assemblied on output shaft, rotary drive wheel, moves it to or be moved away from positioning sleeve, realizes the locking operation to oil cylinder
Or solution locking operation.
2）The simple structure of locking device, part is few, and low cost, fault rate is low.
3）Cylinder thrust is big, the built-in multi-stage oil cylinder of oil cylinder body, and identical input pressure realizes that oil cylinder thrust output increases.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, the present invention
Claimed scope is by appending claims, specification and its equivalent thereof.
Claims (10)
1. a kind of auto lock oil cylinder, it is characterised in that including oil cylinder body（1）, locking device（2）, drive device（3）
And positioning sleeve（4）；Positioning sleeve（4）Using being bolted to oil cylinder body（1）Top, locking device（2）It is assemblied in oil cylinder sheet
Body（1）Output shaft on for locking or unlock output shaft；
Oil cylinder body（1）, its built-in first oil cylinder（10）With at least one second oil cylinders of series connection（20）；Oil cylinder body（1）Using
Built-in multi-stage oil cylinder combination；
First oil cylinder includes the first cylinder barrel（101）, First piston bar（102）, first piston（103）, output shaft（107）、
First top end cover（104）With the first bottom cover（106）, first top end cover（104）It is fixed on the first cylinder barrel（101）Top
End, the first bottom cover（106）It is fixed on the first cylinder barrel（101）Bottom；The output shaft（107）One end pass through the first top
Lid（104）Stretch into the first cylinder barrel（101）It is interior and with the first top end cover（104）It is slidingly sealed connection；The First piston bar
（102）One end and first piston（103）It is fixed on and is placed in the first cylinder barrel（101）It is interior, First piston bar（102）The other end
And output shaft（107）Stretch into the first cylinder barrel（101）Interior one end connection；Locking device（2）, itself and output shaft（107）It is another
One end is connected for locking or solving locking output shaft（107）；Drive device（3）, it is fixed on oil cylinder body（1）Top,
Drive device（3）And locking device（2）It is connected for driving locking device（2）Locked or solved locking operation；Positioning sleeve
（4）, it is sleeved on output shaft（107）Upper and and the first top end cover（104）It is fixed.
2. a kind of auto lock oil cylinder according to claim 1, it is characterised in that：The oil cylinder body（1）Also include extremely
Few second oil cylinder（20）, second oil cylinder（20）Including the second cylinder barrel（201）, second piston bar（202）, second live
Plug（203）And second top end cover（204）, the second top end cover（204）It is fixed on the first cylinder barrel（101）Bottom, the second cylinder barrel
（201）Through the second top end cover（204）With the first cylinder barrel（101）It is fixed；The second piston（203）It is fixed on second piston bar
（202）One end be placed in the second cylinder barrel（201）It is interior, second piston bar（202）The other end pass through the second top end cover（204）With
First piston bar（102）Connection, second piston bar（202）With the second top end cover（204）It is slidingly sealed connection, the first bottom cover
（106）It is fixed on the second cylinder barrel（201）Bottom.
3. a kind of auto lock oil cylinder according to claim 2, it is characterised in that：The First piston bar（102）With
Two piston rods（202）It is integrally formed, the First piston bar（102）With second piston bar（202）Inside it is provided with UNICOM's first piston
（103）Upper oil chamber and second piston（203）First oil circuit of upper oil chamber, the first hydraulic fluid port of the first oil circuit is arranged on second
Top end cover（204）It is interior；The First piston bar（102）With second piston bar（202）Inside it is provided with UNICOM's first piston（103）Bottom
Oil pocket and second piston（203）Second oil circuit of bottom oil pocket, the second hydraulic fluid port of the second oil circuit is arranged on the second top end cover
（204）It is interior.
4. a kind of auto lock oil cylinder according to claim 1, it is characterised in that：The output shaft（107）Positioned at
One cylinder barrel（101）The lateral surface of outer one end is provided with locking external screw thread（23）, lock external screw thread（23）Length and oil cylinder
Stroke coordinate.
5. a kind of auto lock oil cylinder according to claim 4, it is characterised in that：The locking device（2）Including being connected
The driving wheel for connecing（21）And driven pulley（22）, driven pulley（22）Middle part be provided with through hole, through hole inner side is provided with and locks external screw thread
（23）The locking internal thread being engaged（24）, driven pulley（22）It is sleeved on output shaft（107）Go up and be fitted in positioning sleeve（4）'s
Upper surface.
6. a kind of auto lock oil cylinder according to claim 5, it is characterised in that：The driving wheel（21）Side on
Groove, driven pulley are set（22）Groove, the driving wheel are set on side（21）Groove and driven pulley（22）Groove in peace
Dress driving belt.
7. a kind of auto lock oil cylinder according to claim 5, it is characterised in that：The driving wheel（21）And driven pulley
（22）Lateral surface on be respectively equipped with gear, driving wheel（21）And driven pulley（22）By the meshed transmission gear.
8. a kind of auto lock oil cylinder according to claim 7, it is characterised in that：The drive device（3）Including hydraulic pressure
The output shaft and driving wheel of motor or motor, the hydraulic motor or motor（21）It is coaxially connected.
9. a kind of auto lock oil cylinder according to claim 5, it is characterised in that：The driving wheel（21）Length and
The stroke of oil cylinder is adapted.
10. a kind of auto lock oil cylinder according to claim 7, it is characterised in that：The drive device（3）Also include
The output shaft of hydraulic motor or motor, reductor, the hydraulic motor or motor is through reductor and driving wheel（21）
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598128.2A CN104358744B (en) | 2014-10-31 | 2014-10-31 | A kind of auto lock oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598128.2A CN104358744B (en) | 2014-10-31 | 2014-10-31 | A kind of auto lock oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104358744A CN104358744A (en) | 2015-02-18 |
| CN104358744B true CN104358744B (en) | 2017-07-11 |
Family
ID=52526040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410598128.2A Expired - Fee Related CN104358744B (en) | 2014-10-31 | 2014-10-31 | A kind of auto lock oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104358744B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640791B (en) * | 2016-12-16 | 2018-12-07 | 中国科学院地质与地球物理研究所 | Seperated multilayer linkage pressurizing cylinder |
| CN107630857A (en) * | 2017-11-09 | 2018-01-26 | 北京公联洁达公路养护工程有限公司 | Double action strip is servo-actuated mechanical lock oil cylinder |
| CN108252980B (en) * | 2017-12-25 | 2021-09-21 | 上海建工集团股份有限公司 | Foundation pit deformation fine control device and control method |
| CN108088410A (en) * | 2017-12-26 | 2018-05-29 | 上海建工集团股份有限公司 | Underground enclosure wall integration deformation monitoring system and monitoring method |
| CN108584830A (en) * | 2018-05-14 | 2018-09-28 | 长江三峡通航管理局 | A kind of hydraulic jack and control method with mechanical self-latching protective device |
| CN108775303A (en) * | 2018-06-20 | 2018-11-09 | 王志伟 | A kind of wearable hydraulic oil cylinder |
| CN111503088B (en) * | 2020-05-07 | 2022-04-29 | 山东万通液压股份有限公司 | Single-telescopic thrust multiplication hydraulic cylinder |
| CN116079471B (en) * | 2023-04-03 | 2023-06-23 | 冈田智能(江苏)股份有限公司 | Chain type tool magazine lateral tool reversing device with buffering function and control method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2169863C1 (en) * | 1999-11-03 | 2001-06-27 | Государственный космический научно-производственный центр им. М.В. Хруничева | Hydraulic cylinder |
| FR2810701B1 (en) * | 2000-06-27 | 2002-12-13 | Hydraulique Production Systems | DOUBLE ACTING HYDRAULIC CYLINDER WITH AXIAL LOCKING DEVICE |
| US7195224B2 (en) * | 2005-02-01 | 2007-03-27 | Varco I/P, Inc. | Blowout preventer and locking mechanism |
| CN102213251A (en) * | 2011-06-28 | 2011-10-12 | 扬州斯普森机械制造有限公司 | Hydraulic cylinder with locking mechanism |
| CN203594647U (en) * | 2013-11-27 | 2014-05-14 | 贵州航天天马机电科技有限公司 | Novel erecting locking and unlocking mechanism |
| CN104088855A (en) * | 2014-07-06 | 2014-10-08 | 上海宏信设备工程有限公司 | Combined type thread self-locking hydraulic oil cylinder |
| CN104100595A (en) * | 2014-07-06 | 2014-10-15 | 上海宏信设备工程有限公司 | Combined type threaded self-locking hydraulic oil cylinder |
| CN204186693U (en) * | 2014-10-31 | 2015-03-04 | 常州市腾田液压机械有限公司 | A kind of auto lock oil cylinder |
-
2014
- 2014-10-31 CN CN201410598128.2A patent/CN104358744B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104358744A (en) | 2015-02-18 |
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