CN209370206U - A kind of hydraulic cylinder self locking mechanism - Google Patents
A kind of hydraulic cylinder self locking mechanism Download PDFInfo
- Publication number
- CN209370206U CN209370206U CN201822015777.1U CN201822015777U CN209370206U CN 209370206 U CN209370206 U CN 209370206U CN 201822015777 U CN201822015777 U CN 201822015777U CN 209370206 U CN209370206 U CN 209370206U
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- China
- Prior art keywords
- cylinder body
- spring
- hydraulic cylinder
- circle
- placed equidistant
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Abstract
The utility model belongs to Hydraulic Field, disclose a kind of hydraulic cylinder self locking mechanism, including cylinder body, restriction plate is welded in the cylinder body, there are lock chamber between the cylinder body and restriction plate, the inner wall of the lock chamber slidably connects restriction circle, the centre for limiting circle has been placed equidistant with oil-through-hole, the cylinder body is fixedly connected with the first spring being placed equidistant with, and the other end of the first spring is fixedly connected with sliding block, and the lower section for limiting circle is fixedly connected with the second spring being placed equidistant with.The utility model structure is simple, easy to use, can realize withdraw when hydraulic cylinder it is self-locking; it protects the output rod of hydraulic stem not damaged, facilitates placement and storage, be conducive to save; simultaneously when in use, limiting circle has certain radial component, and generates stiction; the effect of spring simultaneously; the use pressure of hydraulic lock can be reduced, oil leak is reduced, the setting of spring can be buffered in decline; it reduces setting and generates impact, damage hydraulic cylinder.
Description
Technical field
The utility model relates to technical field of hydraulic pressure more particularly to a kind of hydraulic cylinder self locking mechanisms.
Background technique
Hydraulic cylinder 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, however the liquid of the existing spring self-lock having
Cylinder pressure does not have self-locking mechanism, such as a kind of hydraulic cylinder with cushion performance of patent No. CN201721477211.X when withdrawing
In, although can buffer to hydraulic cylinder, when not used, the elastic force of spring is easy so that output rod is when not used or fortune
When defeated storage, output rod stress and voluntarily stretch out, so that other extraneous substances be easy to cause the damage of output rod, be unfavorable for depositing
Storage and transport and preservation.
Utility model content
Purpose of the utility model is to solve the existing self-locking problems that cannot be applicable in different weight, and one proposed
Kind hydraulic cylinder self locking mechanism.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of hydraulic cylinder self locking mechanism, including cylinder body, are welded with restriction plate in the cylinder body, the cylinder body and restriction plate it
Between there are lock chamber, the inner wall of the lock chamber slidably connects restriction circle, and the centre for limiting circle has been placed equidistant with logical oil
Hole, the cylinder body is fixedly connected with the first spring being placed equidistant with, and the other end of the first spring is fixedly connected with sliding block, described
The lower section for limiting circle is fixedly connected with the second spring being placed equidistant with, and the other end of second spring and the inner bottom plating of cylinder body are fixed
Connection, the inner wall of the restriction plate slidably connects sealing ring, output rod is fixedly welded with above the sealing ring, described close
The centre of seal is fixedly welded with link block, and the link block is fixedly welded with the support being placed equidistant with far from the side of sealing ring
Bar, the one end of the support rod far from link block are slidably connected with circle is limited.
Preferably, a side-lower of the cylinder body is provided with input pipe, and input pipe is located at the lower section for limiting circle, the cylinder
Efferent duct is provided with above body, the input pipe and efferent duct are respectively connected with oil transfer pump.
Preferably, sliding groove has been placed equidistant in the cylinder body, first spring and sliding block are respectively positioned in sliding groove, institute
The hole wall for stating sliding block and oil-through-hole is slidably connected.
Preferably, sealing block is fixedly welded with above restriction plate.
Preferably, the support rod uses inverted triangular structure close to the one end for limiting circle, and the sliding block uses trapezoidal knot
Structure.
The beneficial effects of the utility model are:
Pass through cylinder body, restriction plate, lock chamber, output rod, efferent duct, sealing ring, link block, second spring, input pipe, limit
Fixed circle, support rod, the first spring, sliding block and oil-through-hole, can when realizing withdrawal hydraulic cylinder it is self-locking, protect the defeated of hydraulic stem
Rod is not damaged, facilitates placement and storage, is conducive to save, while when in use, and limiting circle has certain radial component, and
Generate stiction, while spring effect, it is possible to reduce use the pressure of hydraulic lock, reduction oil leak, the setting of spring can
To be buffered in decline, reduces device and generate impact, damage hydraulic cylinder.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of hydraulic cylinder self locking mechanism main view schematic cross-sectional view；
Fig. 2 be the utility model proposes a kind of hydraulic cylinder self locking mechanism vertical view schematic cross-sectional view；
Fig. 3 be the utility model proposes a kind of hydraulic cylinder self locking mechanism A at enlarged diagram.
In figure: 1 cylinder body, 2 restriction plates, 3 lock chambers, 4 output rods, 5 efferent ducts, 6 sealing rings, 7 link blocks, 8 second springs,
9 input pipes, 10 limit circle, 11 support rods, 12 first springs, 13 sliding blocks, 14 oil-through-holes.
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.1-3, a kind of hydraulic cylinder self locking mechanism, including cylinder body 1 are welded with restriction plate 2, cylinder body 1 and limit in cylinder body 1
There are lock chamber 3 between making sheet 2, the inner wall of lock chamber 3 slidably connects restriction circle 10, and the centre for limiting circle 10 has been placed equidistant with
Oil-through-hole 14, cylinder body 1 is fixedly connected with the first spring 12 being placed equidistant with, and the other end of the first spring 12 is fixedly connected with
Sliding block 13, the lower section for limiting circle 10 are fixedly connected with the second spring 8 being placed equidistant with, and the other end of second spring 8 and cylinder body 1
Inner bottom plating be fixedly connected, the inner wall of restriction plate 2 slidably connects sealing ring 6, and the top of sealing ring 6 is fixedly welded with output rod
4, the centre of sealing ring 6 is fixedly welded with link block 7, and link block 7 is fixedly welded with far from the side of sealing ring 6 and is placed equidistant with
Support rod 11, the one end of support rod 11 far from link block 7 10 is slidably connected with circle is limited, and a side-lower of cylinder body 1 is provided with
Input pipe 9, and input pipe 9 is located at the lower section for limiting circle 10, the top of cylinder body 1 is provided with efferent duct 5, input pipe 9 and efferent duct 5
It is respectively connected with oil transfer pump, sliding groove has been placed equidistant in cylinder body 1, the first spring 12 and sliding block 13 are respectively positioned in sliding groove, sliding block
13 are slidably connected with the hole wall of oil-through-hole 14, and the top of restriction plate 2 is fixedly welded with sealing block, and support rod 11 is close to limiting circle
10 one end uses inverted triangular structure, and sliding block 13 uses trapezium structure.
Working principle: in use, the object of required promotion to be fixed on to one end of output rod 4 by fixed device, then
From input hydraulic pressure oil on input pipe 9, hydraulic oil entered in cylinder body 1, then due to hydraulic oil extruding so that sliding block 13 to
Moved inside cylinder body 1, thus the extruding by second spring 8 and hydraulic oil so that limiting circle 10 and support rod 11 to moving up
It is dynamic, at the same hydraulic oil entered in restriction plate 2 by the gap between restriction plate 2, then squeeze sealing ring 6 and link block 7,
So that sealing ring 6 and link block 7 rise together with restriction circle 10 and support rod 11, when rising to top, the one of circle 10 is limited
With fuel cut-off, output rod 4 begins with downward trend under the extruding of weight for side, however limits circle 10 due to second spring 8
Reason, limit it is motionless, thus weight compressing output rod 4 is transmitted on link block 7 by sealing ring 6, enclosed due to limiting
10 lower sections are trapezoidal setting so that a part of power be it is downward, a part is level, so extruding restriction enclose 10 and cylinder body 1
Inner wall, and then make output rod 4 be unlikely to fall by frictional force, weight is heavier, and horizontal component is bigger so that this
Device is by certain stiction, and when not, from efferent duct 5 input hydraulic pressure oil, hydraulic oil, which squeezes, first limits circle 10
Upper end, at the same link block 7 etc. do not stress, and then make limit circle 10 and moved down along lock chamber, when limiting 10 decline of circle
To a certain degree, hydraulic oil enters in restriction plate 2 by the gap between restriction plate 2, the extruding by hydraulic oil then,
So that interior arrangement is begun to decline, sliding block 13 then is re-entered into oil-through-hole 14, and device is fixed, and second spring 8 exists
Play buffer function during decline, the utility model structure is simple, easy to use, can realize withdraw when hydraulic cylinder from
Lock, protects the output rod of hydraulic stem not damaged, facilitates placement and storage, is conducive to save, while when in use, and limiting circle has
Certain radial component, and generate stiction, at the same spring effect, it is possible to reduce the use pressure of hydraulic lock is reduced
The setting of oil leak, spring can be buffered in decline, reduced device and generated impact, damage hydraulic cylinder.
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 (5)
1. a kind of hydraulic cylinder self locking mechanism, including cylinder body (1), which is characterized in that restriction plate (2) are welded in the cylinder body (1),
There are lock chamber (3) between the cylinder body (1) and restriction plate (2), the inner wall of the lock chamber (3) slidably connects restriction circle
(10), the centre for limiting circle (10) has been placed equidistant with oil-through-hole (14), and the cylinder body (1), which is fixedly connected with, to be placed equidistant with
First spring (12), and the other end of the first spring (12) is fixedly connected with sliding block (13), the lower section for limiting circle (10) is solid
Surely it is connected with the second spring (8) being placed equidistant with, and the other end of second spring (8) is fixedly connected with the inner bottom plating of cylinder body (1),
The inner wall of the restriction plate (2) slidably connects sealing ring (6), is fixedly welded with output rod above the sealing ring (6)
(4), the centre of the sealing ring (6) is fixedly welded with link block (7), and side of the link block (7) far from sealing ring (6) is solid
Surely it is welded with the support rod (11) being placed equidistant with, one end and restriction circle (10) far from link block (7) of the support rod (11) are sliding
Dynamic connection.
2. a kind of hydraulic cylinder self locking mechanism according to claim 1, which is characterized in that a side-lower of the cylinder body (1)
It is provided with input pipe (9), and input pipe (9) is located at the lower section for limiting circle (10), is provided with efferent duct above the cylinder body (1)
(5), the input pipe (9) and efferent duct (5) are respectively connected with oil transfer pump.
3. a kind of hydraulic cylinder self locking mechanism according to claim 1, which is characterized in that be placed equidistant in the cylinder body (1)
There is sliding groove, first spring (12) and sliding block (13) are respectively positioned in sliding groove, the sliding block (13) and oil-through-hole (14)
Hole wall is slidably connected.
4. a kind of hydraulic cylinder self locking mechanism according to claim 1, which is characterized in that the fixed weldering in the top of restriction plate (2)
It is connected to sealing block.
5. a kind of hydraulic cylinder self locking mechanism according to claim 1, which is characterized in that the support rod (11) is close to restriction
The one end for enclosing (10) uses inverted triangular structure, and the sliding block (13) uses trapezium structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822015777.1U CN209370206U (en) | 2018-11-29 | 2018-11-29 | A kind of hydraulic cylinder self locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822015777.1U CN209370206U (en) | 2018-11-29 | 2018-11-29 | A kind of hydraulic cylinder self locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209370206U true CN209370206U (en) | 2019-09-10 |
Family
ID=67835062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822015777.1U Expired - Fee Related CN209370206U (en) | 2018-11-29 | 2018-11-29 | A kind of hydraulic cylinder self locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209370206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201788A (en) * | 2023-04-28 | 2023-06-02 | 沧州精跃液压油缸制造有限公司 | Single-action multistage hydraulic cylinder self-locking device |
-
2018
- 2018-11-29 CN CN201822015777.1U patent/CN209370206U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201788A (en) * | 2023-04-28 | 2023-06-02 | 沧州精跃液压油缸制造有限公司 | Single-action multistage hydraulic cylinder self-locking device |
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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 |
Granted publication date: 20190910 Termination date: 20201129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |