CN209671320U - A kind of hydraulic cylinder self locking apparatus - Google Patents
A kind of hydraulic cylinder self locking apparatus Download PDFInfo
- Publication number
- CN209671320U CN209671320U CN201920282898.4U CN201920282898U CN209671320U CN 209671320 U CN209671320 U CN 209671320U CN 201920282898 U CN201920282898 U CN 201920282898U CN 209671320 U CN209671320 U CN 209671320U
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- piston rod
- gag lever
- lever post
- piston
- 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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Abstract
The utility model discloses a kind of hydraulic cylinder self locking apparatus, including hydraulic cylinder, welding is communicated with casing on hydraulic cylinder one end, and push-pull rod is arranged in the hydraulic cylinder other end, and push-pull rod is embedded on one end in hydraulic cylinder and is connected with piston, piston rod is connected on piston, and piston rod sliding sleeve is set in hydraulic cylinder and casing, piston rod upper and lower side offers tooth socket, micro hydraulic cylinder and bracket are respectively connected on casing upper and lower side inner wall, and equal pin shaft is connected with gag lever post on two micro hydraulic cylinder output shafts, two gag lever post middle-ends are connect with two bracket free end pin shafts respectively.The utility model by opening up tooth socket corresponding with collapsing length on the piston rod, gag lever post is connected using rack pin shaft in casing, the deflection of gag lever post progress certain angle is driven using micro hydraulic cylinder, the barb on gag lever post is enabled to be connected together or separate with tooth socket realization, in order to fix in random length to piston rod, self-locking purpose is realized.
Description
Technical field
The utility model relates to hydraulic cylinder applied technical field more particularly to a kind of hydraulic cylinder self locking apparatus.
Background technique
Cylinder pressure is that hydraulic energy is changed into mechanical energy, the hydraulic of straight reciprocating motion (or pendulum motion) is done and executes member
Part.Its structure is simple, reliable operation.Deceleration device when realizing reciprocating motion, can be removed from it, and do not have drive gap,
Movement is steady, therefore is used widely in the hydraulic system of various machinery.
Hydraulic cylinder often needs to carry out in actual use self-locking, voluntarily slips to avoid piston rod.Using hydraulic cylinder as power
For the elevator of support, need to remain stationary elevator after being adjusted to proper height motionless to facilitate accurate operation, biography
The hydraulic cylinder of system generallys use hydraulic control one-way valve machine circuit, and hydraulic cylinder is made to be maintained at certain position.But because hydraulic valve technology water
Flat and hydraulic circuit installation quality limitation, during hydraulic locking cylinder, hydraulic valve core or line connection often
The case where will appear leakage, causes hydraulic locking cylinder to be not thorough, and in the case, lacks to the locking of piston rod and stablizes guarantee,
So that piston rod is easy voluntarily to slip in hydraulic cylinder, results even in piston rod and be detached from from hydraulic cylinder, not only result in work
The damage of stopper rod also causes greatly to threaten to the security of the lives and property of operator.
Utility model content
Purpose of the utility model is to solve hydraulic cylinder in the prior art using when be difficult to have random length
The fixed problem of effect limit, and a kind of hydraulic cylinder self locking apparatus proposed.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of hydraulic cylinder self locking apparatus, including hydraulic cylinder, welding is communicated with casing, and hydraulic cylinder on described hydraulic cylinder one end
Push-pull rod is arranged in the other end, and push-pull rod is embedded on one end in hydraulic cylinder and is connected with piston, connects on the piston
There is piston rod, and piston rod sliding sleeve is set in hydraulic cylinder and casing, the piston rod upper and lower side offers tooth socket, the set
Micro hydraulic cylinder and bracket are respectively connected on pipe upper and lower side inner wall, and equal pin shaft connection is limited on two micro hydraulic cylinder output shafts
Position bar, two gag lever post middle-ends are connect with two bracket free end pin shafts respectively, and uniform on two gag lever post free ends
It is body formed to have barb.
Preferably, the hydraulic cylinder and casing are hollow cylindrical structure, and push-pull rod, piston and piston rod sliding sleeve
In hydraulic cylinder.
Preferably, the tooth socket quantity is twice, and twice tooth socket is corresponding with two gag lever posts respectively.
Preferably, the micro hydraulic cylinder and number of holders are two.
Preferably, two micro hydraulic cylinders, two brackets are corresponding about piston rod central axes.
Preferably, two barbs are connected together with twice tooth socket respectively.
Compared with prior art, the utility model has following advantages:
1, the utility model by the one end of hydraulic cylinder far from push-pull rod weld connection hollow structure casing, and
It is correspondingly connected with micro hydraulic cylinder and bracket on casing upper and lower side inner wall, connects gag lever post using rack pin shaft, and using flexible
Micro hydraulic cylinder, which carries out traction to gag lever post, makes its yaw motion；Descend both ends are corresponding with gag lever post to open up tooth socket on the piston rod,
So that two barbs is connected together respectively with twice tooth socket, limiting locking is carried out with the piston rod to flexible random length.
2, the utility model installs connecting sleeve outside hydraulic cylinder on one end, and micro hydraulic cylinder and gag lever post are set to set
In pipe, while piston is arranged in hydraulic tube so that piston can in hydraulic tube maximum distance movement, so that piston can be realized
The maximum of bar stretches；Limit by hydraulic cylinder to piston and piston rod can avoid making micro hydraulic bar with bracket
It, can also be by the way that the protection to micro hydraulic cylinder and gag lever post be realized to the limit of piston in hydraulic cylinder at impact failure.
In conclusion the utility model passes through opens up tooth socket corresponding with collapsing length on the piston rod, in casing
Gag lever post is connected using rack pin shaft, the deflection of gag lever post progress certain angle is driven using micro hydraulic cylinder, so that gag lever post
On barb can be realized with tooth socket and be connected together or separate, it is real in order to be fixed in random length to piston rod
Existing self-locking purpose.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of hydraulic cylinder self locking apparatus structural schematic diagram；
Fig. 2 be the utility model proposes a kind of hydraulic cylinder self locking apparatus part A schematic enlarged-scale view.
In figure: 1 hydraulic cylinder, 2 casings, 3 push-pull rods, 4 pistons, 5 piston rods, 6 tooth sockets, 7 micro hydraulic cylinders, 8 brackets, 9 limits
Position bar, 10 barbs.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, a kind of hydraulic cylinder self locking apparatus, including hydraulic cylinder 1, welding is communicated with casing on 1 one end of hydraulic cylinder
2, and push-pull rod 3 is arranged in 1 other end of hydraulic cylinder, and it is connected with piston 4 on the one end that is embedded in hydraulic cylinder 1 of push-pull rod 3,
Piston 4 can move in hydraulic cylinder 1, and piston rod 5 is connected on piston 4, and piston rod 5 can move in hydraulic cylinder 1 and casing 2,
And 5 sliding sleeve of piston rod is set in hydraulic cylinder 1 and casing 2,5 upper and lower side of piston rod offers tooth socket 6, and the inclination of tooth socket 6 opens up,
Convenient for being fixed with barb 10, micro hydraulic cylinder 7 and bracket 8, and two miniature liquid are respectively connected on 2 upper and lower side inner wall of casing
Equal pin shaft is connected with gag lever post 9 on 7 output shaft of cylinder pressure, and two 9 middle-ends of gag lever post connect with two 8 free end pin shafts of bracket respectively
It connects, and is connected integrally formed with barb 10, barb 10 and the inclination of 9 free end of gag lever post on two 9 free ends of gag lever post, with tooth
Slot 6 is corresponding.
It should be noted that being equipped with electromagnetic relay on 1 lateral wall of hydraulic cylinder, and electromagnetic relay and two miniature liquid
Cylinder pressure 7 is electrically connected, and is opened and closed by electromagnetic relay to two micro hydraulic cylinders 7 on hydraulic cylinder 1 convenient for operator
Control.
Hydraulic cylinder 1 and casing 2 are hollow cylindrical structure, and push-pull rod 3, piston 4 and 5 sliding sleeve of piston rod are set to liquid
In cylinder pressure 1,6 quantity of tooth socket is twice, and twice tooth socket 6 is corresponding with two gag lever posts 9 respectively, in order to piston rod 5 into
Row limit is fixed.
Micro hydraulic cylinder 7 and 8 quantity of bracket are two, and two micro hydraulic cylinders, 7, two brackets 8 are about piston rod 5
Central axes are corresponding.
Two barbs 10 are connected together with twice tooth socket 6 respectively, and gag lever post 9 can drive the deflection movement of barb 10, to make
Barb 10 is connected together or separates with the realization of tooth socket 6.
The utility model can illustrate its principle of work and power by following mode of operation:
In the initial state, piston rod 5 is accommodated in completely in hydraulic stem 1 and casing 2, and two micro hydraulic pipes 7 is defeated
Shaft is in stretching state, and the output shaft of two micro hydraulic cylinders 7 respectively pressurizes to two gag lever posts 9, so that gag lever post 9
It is lifted with two barbs 10, at this point, piston rod 5 is freely slidable.
By opening hydraulic cylinder 1, push-pull rod 3 pushes the horizontal sliding in hydraulic cylinder 1 of piston 4, and pushes away to piston rod 5
It send, so that 5 free end of piston rod passes sequentially through hydraulic cylinder 1 and casing 2, after piston rod 5 extends to appropriate length, closes hydraulic
Cylinder 1 makes piston rod 5 stop movement.
At this time by control electromagnetic relay, shrink the output shaft of two micro hydraulic cylinders 7, and to two gag lever posts 9
One end is drawn, and so that two gag lever posts 9 is carried out deflection movement respectively with two 8 fulcrums of bracket, at this point, on gag lever post 9
Barb 10 is gradually close to tooth socket 6, and two barbs 10 is finally made to be connected together respectively with twice tooth socket 6, to realize to piston rod 5
Locking limit.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of hydraulic cylinder self locking apparatus, including hydraulic cylinder (1), which is characterized in that weld connection on described hydraulic cylinder (1) one end
Have casing (2), and is arranged with push-pull rod (3) in hydraulic cylinder (1) other end, and push-pull rod (3) is embedded in one in hydraulic cylinder (1)
It is connected on end piston (4), is connected with piston rod (5) on the piston (4), and piston rod (5) sliding sleeve is set to hydraulic cylinder (1)
With in casing (2), piston rod (5) upper and lower side is offered tooth socket (6), is all connected on described sleeve pipe (2) upper and lower side inner wall
There are micro hydraulic cylinder (7) and bracket (8), and equal pin shaft is connected with gag lever post (9) on two micro hydraulic cylinder (7) output shafts, two
Gag lever post described in root (9) middle-end is connect with two bracket (8) free end pin shafts respectively, and on two gag lever post (9) free ends
Integrally formed with barb (10).
2. a kind of hydraulic cylinder self locking apparatus according to claim 1, which is characterized in that the hydraulic cylinder (1) and casing (2)
It is hollow cylindrical structure, and push-pull rod (3), piston (4) and piston rod (5) sliding sleeve are set in hydraulic cylinder (1).
3. a kind of hydraulic cylinder self locking apparatus according to claim 1, which is characterized in that tooth socket (6) quantity is twice,
And twice tooth socket (6) is corresponding with two gag lever post (9) respectively.
4. a kind of hydraulic cylinder self locking apparatus according to claim 2, which is characterized in that the micro hydraulic cylinder (7) and branch
Frame (8) quantity is two.
5. a kind of hydraulic cylinder self locking apparatus according to claim 4, which is characterized in that two micro hydraulic cylinders (7),
Two brackets (8) are corresponding about piston rod (5) central axes.
6. a kind of hydraulic cylinder self locking apparatus according to claim 3, which is characterized in that two barbs (10) respectively with
Twice tooth socket (6) is connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920282898.4U CN209671320U (en) | 2019-03-06 | 2019-03-06 | A kind of hydraulic cylinder self locking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920282898.4U CN209671320U (en) | 2019-03-06 | 2019-03-06 | A kind of hydraulic cylinder self locking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209671320U true CN209671320U (en) | 2019-11-22 |
Family
ID=68570660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920282898.4U Expired - Fee Related CN209671320U (en) | 2019-03-06 | 2019-03-06 | A kind of hydraulic cylinder self locking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209671320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236534A (en) * | 2021-05-28 | 2021-08-10 | 汤金存 | Reciprocating compressor is with avoiding cylinder to strain subassembly |
-
2019
- 2019-03-06 CN CN201920282898.4U patent/CN209671320U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236534A (en) * | 2021-05-28 | 2021-08-10 | 汤金存 | Reciprocating compressor is with avoiding cylinder to strain subassembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191122 |