CN110500335B - Mechanical locking hydraulic cylinder - Google Patents
Mechanical locking hydraulic cylinder Download PDFInfo
- Publication number
- CN110500335B CN110500335B CN201910887092.2A CN201910887092A CN110500335B CN 110500335 B CN110500335 B CN 110500335B CN 201910887092 A CN201910887092 A CN 201910887092A CN 110500335 B CN110500335 B CN 110500335B
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- fixedly connected
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- 238000007789 sealing Methods 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 abstract description 32
- 239000007788 liquid Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 210000003781 tooth socket Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
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- 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
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a mechanical locking hydraulic cylinder, and belongs to the technical field of hydraulic cylinders. The mechanical locking hydraulic cylinder comprises a cylinder body and a piston column, wherein the piston column is in sliding connection with the cylinder body, a first inlet and a second inlet are fixedly connected to the cylinder body, a first connecting block is fixedly connected to the first inlet and the second inlet, a second connecting block is fixedly connected to the second inlet and the second outlet, connecting check blocks are respectively and slidably connected to the first connecting block and the second connecting block, and driving ports are formed in the connecting check blocks; according to the invention, when the sliding of the piston column is controlled, the hydraulic oil can be added to the liquid inlet and outlet on one side while the opening of the liquid inlet and outlet on the other side is controlled, so that the hydraulic oil at the liquid inlet and outlet on the other side can be conveniently discharged, when the sliding of the piston column is not required to be controlled, the liquid inlet and outlet is automatically closed, and meanwhile, the piston column can be fixed through the tooth slot, so that multiple fixing and locking effects are good.
Description
Technical Field
The invention relates to the technical field of hydraulic cylinders, in particular to a mechanical locking hydraulic cylinder.
Background
The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and performs linear reciprocating motion or swinging motion, has simple structure and reliable work, can avoid a speed reducing device when being used for realizing reciprocating motion, has no transmission clearance and stable motion, and is widely applied to hydraulic systems of various machines, and the output force of the hydraulic cylinder is in direct proportion to the effective area of a piston and the pressure difference on two sides of the piston.
The locking of the hydraulic cylinder can stop the hydraulic cylinder at any position and is not influenced by external force.
The existing hydraulic cylinder locking methods are various, a locking loop of a hydraulic control one-way valve is commonly used, a piston rod is fixed by utilizing the oil pressure of hydraulic oil in an oil cylinder, the hydraulic oil can deteriorate after long-time use, and the piston rod can be instantaneously lowered due to insufficient pressure of the hydraulic oil; if the tightness in the hydraulic circuit fails, hydraulic oil may leak, and thus the pressure of the hydraulic machine is insufficient in the use process, and the working efficiency of the hydraulic cylinder is low.
Disclosure of Invention
The invention aims to solve the problems that the existing hydraulic cylinder locking methods are various, a locking loop of a hydraulic control one-way valve is commonly used, a piston rod is fixed by utilizing the oil pressure of hydraulic oil in an oil cylinder, the hydraulic oil can deteriorate after long-time use, and the pressure of the hydraulic oil is insufficient, so that the piston rod can be instantaneously lowered; if the tightness in the hydraulic circuit fails, hydraulic oil can be leaked, so that the problems of insufficient pressure and low working efficiency of the hydraulic cylinder of the hydraulic machine are caused in the using process, and the mechanical locking hydraulic cylinder is provided.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The mechanical locking hydraulic cylinder comprises a cylinder body and a piston column, wherein the piston column is slidably connected in the cylinder body, a first inlet and a second inlet are fixedly connected to the cylinder body, a first connecting block is fixedly connected to the first inlet and the second outlet, a second connecting block is fixedly connected to the second inlet and the second outlet, connecting check blocks are slidably connected to the first connecting block and the second connecting block, a driving port is arranged on the connecting check blocks, a fixed baffle is fixedly connected to one end of the connecting check block, which is far away from the driving port, a second spring is fixedly connected to one end of the fixed baffle, which is close to the driving port, and one ends of the two second springs, which are far away from the fixed baffle, are respectively fixedly connected to the first connecting block and the second connecting block;
The oil cylinder is characterized in that an outer fixing plate is fixedly connected to the oil cylinder body, an inner sliding plate is connected to the outer fixing plate in a sliding mode, inner fixing blocks are fixedly connected to two ends of the inner sliding plate respectively, the inner fixing blocks are located at one ends of the inner sliding plate, which are far away from the oil cylinder body, third limiting blocks and limiting grooves are formed in the inner fixing blocks, first limiting blocks and second limiting blocks are arranged at one ends, which are far away from the connecting stop blocks, of the fixing baffle, the first limiting blocks are fixedly connected with the second limiting blocks, the first limiting blocks are matched with the third limiting blocks, and the second limiting blocks are matched with the limiting grooves.
Preferably, the piston column is fixedly connected with a first connecting rod, the piston column is connected with a second connecting rod through the first connecting rod, the second connecting rod is slidably connected to the outer wall of the oil cylinder body, a first tooth slot is formed in the second connecting rod, a second tooth slot is formed in the inner sliding plate, and the second tooth slot is matched with the first tooth slot.
Preferably, the second connecting rod is located between the cylinder body and the inner slide plate.
Preferably, one end of the inner fixing block, which is far away from the inner sliding plate, is fixedly connected with a first spring, and one end of the first spring, which is far away from the inner fixing block, is fixedly connected with the outer fixing plate.
Preferably, the number of the first springs on one side is 2-4.
Preferably, the driving port is wedge-shaped.
Preferably, the fixed baffle is kept away from the one end fixedly connected with spacing connecting block of connecting dog, spacing connecting block and first stopper fixed link to each other.
Preferably, the connection check block is fixedly connected with the sealing rubber pad.
Preferably, a cushion pad is fixedly connected to one side of the fixed baffle close to the inner fixed block.
Preferably, the connecting part of the inner slide plate and the outer fixing plate is provided with an anti-slip pad.
Compared with the prior art, the invention provides the mechanical locking hydraulic cylinder, which has the following beneficial effects:
1. When the mechanical locking hydraulic cylinder is used, the piston column slides in the cylinder body, the first inlet and outlet and the second inlet and outlet are externally connected with a hydraulic oil pipe, hydraulic oil is injected into the left side of the piston column in the cylinder body through the first inlet and outlet, when the hydraulic oil passes through the first connecting block, the driving port is wedge-shaped, and then the driving port pushes the connecting block to move towards a direction close to the inner fixing block, and the hydraulic oil enters the cylinder body through the first connecting block;
In the process of moving the connecting stop block, the fixed baffle, the limiting connecting block, the first limiting block and the second limiting block are driven to move in the direction close to the inner fixed block, the second spring stretches, the first limiting block drives the inner fixed block to slide downwards through the third limiting block, the inner fixed block drives the inner sliding plate to slide downwards, and the first spring is compressed;
When the inner sliding plate slides downwards, the inner fixing block on the side of the second connecting block is driven to slide, the first spring is compressed, and then the inner fixing block drives the second limiting block to move towards the direction close to the inner fixing block through the limiting groove, so that the second limiting block drives the first limiting block, the limiting connecting block, the fixed baffle and the connecting stop block to move towards the direction close to the inner fixing block, the second spring stretches, and the hydraulic pressure on the right side of the piston column can be discharged through the second inlet and outlet;
After the hydraulic oil is added and discharged, under the action of the first spring and the second spring, the connecting stop block and the inner fixing block are reset, and the sealing rubber gasket arranged on the connecting stop block can improve the sealing performance of the connecting stop block, so that the first inlet and the second outlet are blocked, and the hydraulic oil is prevented from being discharged;
When the device is used for controlling the sliding of the piston column, the hydraulic oil can be added to the liquid inlet and outlet on one side while the liquid inlet and outlet on the other side are controlled to be opened, so that the liquid inlet and outlet on the other side can be conveniently discharged, and when the sliding of the piston column is not required to be controlled, the liquid inlet and outlet can be automatically closed, and then the piston column can be locked, so that the locking effect is good.
2. According to the mechanical locking hydraulic cylinder, in the process of controlling the sliding of the piston column, the piston column drives the second connecting rod to slide through the first connecting rod, the second connecting rod slides between the cylinder body and the inner sliding plate, and the second connecting rod is prevented from shaking, so that the inner sliding plate moves downwards when the sliding, adding and removing of hydraulic oil of the piston column are controlled, and the sliding of the second connecting rod is facilitated;
when the piston column stops moving, under the action of the first spring and the second spring, the connecting stop block and the inner fixing block reset, the first tooth slot on the second connecting rod is clamped into the second tooth slot on the inner sliding plate, and the anti-slip pad arranged at the joint of the inner sliding plate and the outer fixing plate ensures that the piston column is locked and fixed, and the fixing effect is good.
3. The number of the first springs is 3, and the reset effect of the first springs is better.
4. The mechanical locking hydraulic cylinder is characterized in that the buffer cushion is arranged on the fixed baffle, so that the fixed baffle can be prevented from being damaged by collision with the inner fixed block when moving.
The device has the advantages that when the sliding of the piston column is controlled, the hydraulic oil can be added to the liquid inlet and outlet on one side, the liquid outlet on the other side is controlled to be opened, the hydraulic oil at the liquid outlet on the other side is conveniently discharged, when the sliding of the piston column is not required to be controlled, the liquid inlet and outlet is automatically closed, and meanwhile, the piston column can be fixed through the tooth grooves, so that the multiple fixing and locking effects are good.
Drawings
FIG. 1 is a schematic diagram of a mechanical locking hydraulic cylinder according to the present invention;
FIG. 2 is a schematic cross-sectional view of a mechanically locked hydraulic cylinder according to the present invention;
FIG. 3 is a schematic view of the structure of the portion A in FIG. 2 of a mechanically locked hydraulic cylinder according to the present invention;
Fig. 4 is a schematic structural diagram of a first connecting rod of a mechanically locking hydraulic cylinder according to the present invention;
Fig. 5 is a schematic structural view of a connection block of a mechanical locking hydraulic cylinder according to the present invention;
fig. 6 is a schematic structural diagram of an internal fixing block of a mechanical locking hydraulic cylinder according to the present invention.
In the figure: 1. an oil cylinder body; 101. a piston column; 102. a first inlet and outlet; 1021. a first connection block; 103. a second inlet and outlet; 1031. a second connection block; 2. an outer fixing plate; 201. a first spring; 202. an inner fixing block; 2021. a third limiting block; 2022. a limit groove; 203. an inner slide plate; 2031. a second tooth slot; 3. a connecting stop block; 3001. a driving port; 301. a fixed baffle; 302. a second spring; 303. a first limiting block; 304. a second limiting block; 305. a limit connecting block; 4. a first connecting rod; 401. a second connecting rod; 4011. a first tooth slot.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1:
Referring to fig. 1-6, a mechanical locking hydraulic cylinder comprises a cylinder body 1 and a piston column 101, wherein the piston column 101 is slidably connected in the cylinder body 1, a first inlet and outlet port 102 and a second inlet and outlet port 103 are fixedly connected to the cylinder body 1, a first connecting block 1021 is fixedly connected to the first inlet and outlet port 102, a second connecting block 1031 is fixedly connected to the second inlet and outlet port 103, a connecting stop block 3 is slidably connected to the first connecting block 1021 and the second connecting block 1031, a driving port 3001 is arranged on the connecting stop block 3, a fixed baffle 301 is fixedly connected to one end of the connecting stop block 3 away from the driving port 3001, a second spring 302 is fixedly connected to one end of the fixed baffle 301 close to the driving port 3001, and one ends of the two second springs 302 away from the fixed baffle 301 are respectively fixedly connected to the first connecting block 1021 and the second connecting block 1031;
The cylinder body 1 is fixedly connected with an outer fixing plate 2, the outer fixing plate 2 is connected with an inner sliding plate 203 in a sliding manner, two ends of the inner sliding plate 203 are fixedly connected with an inner fixing block 202, the inner fixing block 202 is located at one end, far away from the cylinder body 1, of the inner sliding plate 203, a third limiting block 2021 and a limiting groove 2022 are arranged on the inner fixing block 202, one end, far away from the connecting stop block 3, of a fixing baffle 301 is provided with a first limiting block 303 and a second limiting block 304, the first limiting block 303 is fixedly connected with the second limiting block 304, the first limiting block 303 is matched with the third limiting block 2021, and the second limiting block 304 is matched with the limiting groove 2022.
The end of the inner fixed block 202 far away from the inner sliding plate 203 is fixedly connected with a first spring 201, and the end of the first spring 201 far away from the inner fixed block 202 is fixedly connected to the outer fixed plate 2.
The driving port 3001 has a wedge shape.
The fixed baffle 301 is away from the one end fixedly connected with spacing connecting block 305 of connecting dog 3, and spacing connecting block 305 and first stopper 303 fixed link to each other.
The joint of the connecting block 3, the first connecting block 1021 and the second connecting block 1031 is respectively provided with a hand sealing rubber pad, and the connecting block 3 is fixedly connected with the sealing rubber pad.
When the hydraulic oil cylinder is used, the piston column 101 slides in the cylinder body 1, the first inlet and outlet port 102 and the second inlet and outlet port 103 are externally connected with a hydraulic oil pipe, hydraulic oil is injected into the left side of the piston column 101 in the cylinder body 1 through the first inlet and outlet port 102, when the hydraulic oil passes through the first connecting block 1021, the driving port 3001 is wedge-shaped, and then the driving port 3001 pushes the connecting block 3 to move towards the direction close to the inner fixed block 202, and the hydraulic oil enters the cylinder body 1 through the first connecting block 1021;
In the process of moving the connection stop block 3, the fixed baffle 301, the limit connection block 305, the first limit block 303 and the second limit block 304 are driven to move in the direction approaching to the inner fixed block 202, the second spring 302 is extended, the first limit block 303 drives the inner fixed block 202 to slide downwards through the third limit block 2021, and then the inner fixed block 202 drives the inner slide plate 203 to slide downwards, and the first spring 201 is compressed;
When the inner slide plate 203 slides downwards, the inner fixed block 202 at the side of the second connecting block 1031 is driven to slide, the first spring 201 is compressed, and then the inner fixed block 202 drives the second limiting block 304 to move towards the direction close to the inner fixed block 202 through the limiting groove 2022, so that the second limiting block 304 drives the first limiting block 303, the limiting connecting block 305, the fixed baffle 301 and the connecting stop block 3 to move towards the direction close to the inner fixed block 202, the second spring 302 stretches, and the hydraulic pressure at the right side of the piston column 101 can be discharged through the second inlet and outlet 103;
After the hydraulic oil is added and discharged, under the action of the first spring 201 and the second spring 302, the connecting stop block 3 and the inner fixing block 202 are reset, and the sealing rubber gasket arranged on the connecting stop block 3 can improve the sealing performance of the connecting stop block 3, so that the first inlet and outlet 102 and the second inlet and outlet 103 are blocked, and the hydraulic oil is prevented from being discharged;
When the device is used for controlling the sliding of the piston column 101, the hydraulic oil can be added to one side of the liquid inlet and outlet while the other side of the liquid inlet and outlet is controlled to be opened, so that the hydraulic oil at the other side of the liquid inlet and outlet is conveniently discharged, when the sliding of the piston column 101 is not required to be controlled, the liquid inlet and outlet is automatically closed, and then the piston column 101 can be locked, and the locking effect is good.
Example 2:
referring to fig. 1-6, a mechanically locking hydraulic cylinder is substantially the same as that of embodiment 1, further, a first connecting rod 4 is fixedly connected to a piston column 101, the piston column 101 is connected to a second connecting rod 401 through the first connecting rod 4, the second connecting rod 401 is slidably connected to an outer wall of the cylinder body 1, a first tooth slot 4011 is formed on the second connecting rod 401, a second tooth slot 2031 is formed on the inner slide 203, and the second tooth slot 2031 is matched with the first tooth slot 4011.
The second connecting rod 401 is located between the cylinder body 1 and the inner slide 203.
A non-slip mat is arranged at the joint of the inner slide plate 203 and the outer fixing plate 2.
In the process of controlling the sliding of the piston column 101, the piston column 101 drives the second connecting rod 401 to slide through the first connecting rod 4, the second connecting rod 401 slides between the oil cylinder body 1 and the inner sliding plate 203, and the second connecting rod 401 is prevented from shaking, so that when the piston column 101 is controlled to slide, hydraulic oil is added and discharged, the inner sliding plate 203 moves downwards, and the sliding of the second connecting rod 401 is facilitated;
When the piston column 101 stops moving, under the action of the first spring 201 and the second spring 302, the connecting stop block 3 and the inner fixing block 202 are reset, the first tooth socket 4011 on the second connecting rod 401 is clamped into the second tooth socket 2031 on the inner sliding plate 203, and the anti-slip pad is arranged at the joint of the inner sliding plate 203 and the outer fixing plate 2, so that the piston column 101 is locked and fixed, and the fixing effect is good;
Example 3:
Referring to fig. 1 to 6, a mechanical locking hydraulic cylinder is substantially the same as that of embodiment 2, and further, the number of the single-sided first springs 201 is 2 to 4.
The number of the first springs 201 is 3, and the reset effect of the first springs 201 is better.
Example 4:
referring to fig. 1 to 6, a mechanical locking hydraulic cylinder is substantially the same as that of embodiment 2, and further, a cushion pad is fixedly attached to a side of the fixing plate 301 adjacent to the inner fixing block 202.
The buffer cushion is arranged on the fixed baffle 301, so that the fixed baffle 301 can be prevented from being damaged by collision with the inner fixed block 202 when moving.
According to the invention, when the sliding of the piston column 101 is controlled, the hydraulic oil can be added to the liquid inlet and outlet on one side while the opening of the liquid outlet on the other side is controlled, so that the hydraulic oil at the liquid outlet on the other side is conveniently discharged, when the sliding of the piston column 101 is not required to be controlled, the liquid inlet and outlet is automatically closed, and meanwhile, the piston column 101 can be fixed through the tooth slot, multiple fixing and locking are realized, and the locking effect is good.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a mechanical locking hydraulic cylinder, includes hydro-cylinder body (1), piston post (101) sliding connection is in hydro-cylinder body (1), fixedly connected with first inlet and outlet (102), second inlet and outlet (103) on hydro-cylinder body (1), a serial communication port, fixedly connected with first connecting block (1021) on first inlet and outlet (102), fixedly connected with second connecting block (1031) on second inlet and outlet (103), all sliding connection has connection dog (3) in first connecting block (1021), second connecting block (1031), be equipped with on connection dog (3) and drive mouth (3001), the one end fixedly connected with fixed stop (301) that drive mouth (3001) were kept away from to connection dog (3), the one end fixedly connected with second spring (302) that fixed stop (301) is close to drive mouth (3001), two the one end that fixed stop (301) were kept away from respectively fixedly connected with on first connecting block (1021), second connecting block (1031);
the oil cylinder is characterized in that an outer fixing plate (2) is fixedly connected to the oil cylinder body (1), an inner sliding plate (203) is connected to the outer fixing plate (2) in a sliding mode, inner fixing blocks (202) are fixedly connected to two ends of the inner sliding plate (203), the inner fixing blocks (202) are located at one ends, far away from the oil cylinder body (1), of the inner sliding plate (203), third limiting blocks (2021) and limiting grooves (2022) are formed in the inner fixing blocks (202), first limiting blocks (303) and second limiting blocks (304) are arranged at one ends, far away from the connecting stop blocks (3), of the fixing baffle (301), the first limiting blocks (303) are fixedly connected with the second limiting blocks (304), and the first limiting blocks (303) are matched with the third limiting blocks (2021), and the second limiting blocks (304) are matched with the limiting grooves (2022).
The piston column (101) is fixedly connected with a first connecting rod (4), the piston column (101) is connected with a second connecting rod (401) through the first connecting rod (4), the second connecting rod (401) is slidably connected onto the outer wall of the oil cylinder body (1), a first tooth groove (4011) is formed in the second connecting rod (401), a second tooth groove (2031) is formed in the inner sliding plate (203), and the second tooth groove (2031) is matched with the first tooth groove (4011).
2. A mechanically locked hydraulic ram as claimed in claim 1, characterised in that the second connecting rod (401) is located between the ram body (1) and the inner slide (203).
3. The mechanical locking hydraulic cylinder according to claim 2, wherein a first spring (201) is fixedly connected to one end of the inner fixing block (202) away from the inner sliding plate (203), and one end of the first spring (201) away from the inner fixing block (202) is fixedly connected to the outer fixing plate (2).
4. A mechanically locked hydraulic ram according to claim 3, characterised in that the number of said first springs (201) on one side is 2-4.
5. A mechanically locked hydraulic cylinder as claimed in claim 1, wherein said drive port (3001) is wedge-shaped.
6. The mechanical locking hydraulic cylinder according to claim 5, wherein a limit connection block (305) is fixedly connected to one end of the fixed baffle (301) away from the connection block (3), and the limit connection block (305) is fixedly connected to the first limit block (303).
7. The mechanical locking hydraulic cylinder according to claim 1, wherein the joints of the connecting block (3) and the first connecting block (1021) and the second connecting block (1031) are respectively provided with a hand sealing rubber pad, and the connecting block (3) is fixedly connected with the sealing rubber pad.
8. A mechanically locked hydraulic cylinder as claimed in claim 1, wherein a cushion pad is fixedly connected to a side of the fixed baffle (301) adjacent to the inner fixed block (202).
9. A mechanically locked hydraulic cylinder as claimed in claim 1, characterised in that the connection of the inner slide (203) with the outer fixing plate (2) is provided with a non-slip mat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887092.2A CN110500335B (en) | 2019-09-19 | 2019-09-19 | Mechanical locking hydraulic cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887092.2A CN110500335B (en) | 2019-09-19 | 2019-09-19 | Mechanical locking hydraulic cylinder |
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| CN110500335A CN110500335A (en) | 2019-11-26 |
| CN110500335B true CN110500335B (en) | 2024-05-10 |
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| CN201910887092.2A Active CN110500335B (en) | 2019-09-19 | 2019-09-19 | Mechanical locking hydraulic cylinder |
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| CN (1) | CN110500335B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111520149B (en) * | 2020-04-10 | 2022-07-29 | 四川万豪添翼建设工程有限公司 | Shield constructs quick-witted articulated auxiliary device |
| CN117249145B (en) * | 2023-11-17 | 2024-02-02 | 常州市振跃液压机械有限公司 | Hydraulic cylinder with mechanical locking function |
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| CN210440320U (en) * | 2019-09-19 | 2020-05-01 | 泰安市力华液压设备有限公司 | Mechanical locking hydraulic oil cylinder |
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2019
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| EP0024748A2 (en) * | 1979-02-08 | 1981-03-11 | Proweco Bv. | Construction and/or application in relation to the generation or the use of pressures, forces, flows and movements in and by means of hydraulic or hydro-pneumatic systems |
| CN107237795A (en) * | 2017-08-09 | 2017-10-10 | 江苏龙城洪力液压设备有限公司 | Mechanical interlocking hydraulic jack |
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| CN208870865U (en) * | 2018-10-30 | 2019-05-17 | 莱芜钢铁集团有限公司 | A kind of mechanical interlocking hydraulic cylinder |
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| CN210440320U (en) * | 2019-09-19 | 2020-05-01 | 泰安市力华液压设备有限公司 | Mechanical locking hydraulic oil cylinder |
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| CN110500335A (en) | 2019-11-26 |
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