CN219570499U - Hydraulic cylinder locking structure - Google Patents
Hydraulic cylinder locking structure Download PDFInfo
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- CN219570499U CN219570499U CN202320675060.8U CN202320675060U CN219570499U CN 219570499 U CN219570499 U CN 219570499U CN 202320675060 U CN202320675060 U CN 202320675060U CN 219570499 U CN219570499 U CN 219570499U
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- hydraulic cylinder
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- sleeve
- piston rod
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Abstract
The utility model relates to the technical field of hydraulic cylinders and discloses a hydraulic cylinder locking structure, which comprises a hydraulic cylinder barrel, wherein a piston rod is inserted into one end of the hydraulic cylinder barrel, a locking sleeve is rotatably arranged at one end of the hydraulic cylinder barrel, an inner cylinder body is arranged on the inner wall of the locking sleeve in a threaded manner, a sliding block is fixedly arranged on the inner wall of the inner cylinder body, the inner cylinder body is in sliding connection with the piston rod, a rubber sleeve is fixedly arranged at one end of the hydraulic cylinder barrel, the rubber sleeve is positioned in the locking sleeve, a ring body is fixedly arranged at one end, close to the rubber sleeve, of the inner cylinder body, the ring body is positioned between the hydraulic cylinder barrel and the rubber sleeve, the inner cylinder body drives the rubber sleeve to extrude onto the outer wall of the piston rod through the cooperation among the locking sleeve, the inner cylinder body, the ring body and the rubber sleeve, and the piston rod is locked.
Description
Technical Field
The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder locking structure.
Background
The hydraulic cylinder is a hydraulic pressure that converts hydraulic energy into a linear reciprocating motion (or a swinging motion). The device has simple structure and reliable operation. When it is used to realize reciprocating motion, it can eliminate speed reducer, and has no transmission gap and smooth motion, so that it is widely used in various machines. In the working process of the hydraulic cylinder, in order to fix the extending length of the hydraulic piston rod, a locking sleeve is needed to lock and fix the piston rod.
Patent document CN202120707668.5 discloses a pneumatic cylinder locking sleeve, including base, pneumatic cylinder, hydraulic stem, lockpin, top cap, lockpin switch, hydraulic tank, connecting through-hole.
In the application, a plurality of locking pins are used for locking the hydraulic cylinder, the locking pins are distributed up and down, the locking position is determined by the position of the locking pin, the locking cannot be performed according to any extending position of the piston rod, the application range is limited, and the flexibility is low; therefore, the existing requirements are not met, and a hydraulic cylinder locking structure is provided for the hydraulic cylinder locking structure.
Disclosure of Invention
The utility model provides a hydraulic cylinder locking structure which has the beneficial effects of wide application range, small structure and convenience for long-term use, can be locked according to any position of the adjustment of a piston rod, and solves the problems that the locking pins are distributed up and down, the locking position is determined by the position of a bolt, the locking cannot be performed according to any position of the extension of the piston rod, the application range is limited and the flexibility is low in the background art.
The utility model provides the following technical scheme: the utility model provides a pneumatic cylinder locking structure, includes hydraulic cylinder, the one end of hydraulic cylinder alternates there is the piston rod, the one end fixed mounting of piston rod has the piston head with hydraulic cylinder sliding connection, the one end of hydraulic cylinder rotates and installs locking sleeve, threaded mounting has interior barrel on locking sleeve's the inner wall, fixed mounting has the slider on the inner wall of interior barrel, interior barrel and piston rod sliding connection, the one end fixed mounting of hydraulic cylinder has the rubber sleeve, the rubber sleeve is arranged in the locking sleeve, the one end fixed mounting that the interior barrel is close to the rubber sleeve has the ring body, the ring body is arranged in between hydraulic cylinder and the rubber sleeve.
As an alternative to the hydraulic cylinder locking structure of the present utility model, wherein: a sliding groove is formed in the outer wall of the piston rod, the length of the sliding groove is shorter than that of the piston rod, and the sliding groove is in sliding connection with the sliding block.
As an alternative to the hydraulic cylinder locking structure of the present utility model, wherein: the locking sleeve and the rubber sleeve are of conical structures, and the diameter of one end of the locking sleeve and the rubber sleeve, which is close to the inner cylinder, is smaller than that of one end, which is far away from the inner cylinder.
As an alternative to the hydraulic cylinder locking structure of the present utility model, wherein: the diameter of the ring body is larger than that of the inner cylinder body, and the outer wall of the ring body is in sliding connection with the inner wall of the locking sleeve.
As an alternative to the hydraulic cylinder locking structure of the present utility model, wherein: the outer wall of the inner cylinder body is provided with a first pulley in a sliding mode, and the first pulley is connected with the piston rod in a sliding mode.
As an alternative to the hydraulic cylinder locking structure of the present utility model, wherein: the inner wall of the inner cylinder body is provided with a first groove body, and the first pulley is arranged in the first groove body.
As an alternative to the hydraulic cylinder locking structure of the present utility model, wherein: a second groove body is jointly formed between the locking sleeve and the hydraulic cylinder barrel, a second roller is slidably mounted in the second groove body, and the second roller is rotationally connected with the outer wall of the hydraulic cylinder barrel.
As an alternative to the hydraulic cylinder locking structure of the present utility model, wherein: the handle is rotatably arranged on the outer wall of the locking sleeve, and one side of the handle is connected with the outer wall of the locking sleeve in a fitting mode.
The utility model has the following beneficial effects:
1. this pneumatic cylinder locking structure, through the cooperation between locking sleeve, interior barrel, ring body and the rubber sleeve, rotatory locking sleeve drives interior barrel and gets into in the space between hydraulic cylinder and the rubber sleeve, interior barrel drives the rubber sleeve and extrudees on the piston rod outer wall, gives the locking with the piston rod, because locking sleeve and interior barrel are threaded connection, interior barrel is difficult for bouncing, and then can give the locking with the piston rod for a long time, locking sleeve is located hydraulic cylinder outer wall, can lock according to the optional position of the regulation of piston rod, and application scope is wide, and the structure is small and exquisite, is convenient for maintain and change.
2. This pneumatic cylinder locking structure rotates in locking sleeve's major circle position, and locking sleeve minor circle's position rotates with the inner tube body, has possessed laborsaving effect when using, through setting up the handle, presses the handle and can drive locking sleeve and rotate, has changed the position of application of force, has alleviateed pivoted burden to a great extent, uses comparatively laborsaving.
3. This pneumatic cylinder locking structure, through the cooperation of first cell body, first pulley, the area of interior barrel and piston rod contact is less, the activity of interior barrel of being convenient for has reduced both friction and to the damage of both sides, is simultaneously cooperating the effect of first pulley, has further improved both gliding flexibility, under the effect of second cell body and second gyro wheel, has increased both pivoted flexibility and stability, convenient to use.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a state diagram of the handle of the present utility model after rotation.
Fig. 3 is an overall cross-sectional view of the present utility model.
Fig. 4 is a state diagram of the locking sleeve of the present utility model after rotation.
In the figure: 1. a hydraulic cylinder; 2. a piston head; 3. a rubber sleeve; 4. a locking sleeve; 41. a second tank body; 42. a second roller; 43. a handle; 5. a piston rod; 51. a chute; 6. an inner cylinder; 61. a slide block; 62. a ring body; 63. a first tank body; 64. a first pulley.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
The embodiment aims to facilitate the solution of the problem that the locking pins are distributed vertically, the locking position is determined by the position of the bolt, the locking cannot be performed according to any extending position of the piston rod, the application range is limited, and the flexibility is low, refer to fig. 1, 3 and 4, and the hydraulic cylinder locking structure comprises a hydraulic cylinder barrel 1, a piston rod 5 is inserted into one end of the hydraulic cylinder barrel 1, a piston head 2 in sliding connection with the hydraulic cylinder barrel 1 is fixedly arranged at one end of the piston rod 5, and in the use process, the piston rod 5 drives the piston head 2 to slide back and forth in the hydraulic cylinder barrel 1.
The one end rotation of hydraulic cylinder 1 installs locking sleeve 4, and threaded mounting has interior barrel 6 on the inner wall of locking sleeve 4, and fixed mounting has slider 61 on the inner wall of interior barrel 6, interior barrel 6 and piston rod 5 sliding connection, and the one end fixed mounting of hydraulic cylinder 1 has rubber sleeve 3, and rubber sleeve 3 is arranged in locking sleeve 4, and the one end fixed mounting that interior barrel 6 is close to rubber sleeve 3 has ring body 62, and ring body 62 is located between hydraulic cylinder 1 and the rubber sleeve 3.
After the piston rod 5 slides to a certain length, the sliding position needs to be locked, at this time, the locking sleeve 4 is rotated, one end of the inner wall of the locking sleeve 4 is in threaded connection with the outer wall of the inner cylinder 6, so that the inner cylinder 6 can move towards the direction of the rubber sleeve 3 until the ring body 62 enters a gap between the hydraulic cylinder 1 and the rubber sleeve 3, the locking sleeve 4 is continuously rotated, the inner cylinder 6 is driven to enter the gap between the hydraulic cylinder 1 and the rubber sleeve 3, the inner wall of the inner cylinder 6 moves towards the direction of the piston vexation 5, the rubber sleeve 3 is extruded onto the outer wall of the piston rod 5, the rubber sleeve 3 has elasticity, sealing performance and anti-slip performance, the piston rod 5 can be locked, and the inner cylinder 6 is not easy to rebound due to the fact that the locking sleeve 4 and the inner cylinder 6 are in threaded connection, and further the piston rod 5 can be locked for a long time, and the use is convenient.
The locking sleeve 4 is positioned on the outer wall of the hydraulic cylinder barrel 1, can be locked at any position according to the adjustment of the piston rod 5, and has wide application range, small structure and convenient maintenance and replacement.
The outer wall of the piston rod 5 is provided with a sliding groove 51, the length of the sliding groove 51 is shorter than that of the piston rod 5, and the sliding groove 51 is in sliding connection with the sliding block 61.
The sliding groove 51 is arranged on the piston rod 5, the running path of the sliding groove 51 is consistent with that of the piston rod 5, the inner cylinder 6 is limited to move transversely under the action of the sliding block 61 and cannot rotate, and the inner cylinder 6 is ensured to move transversely when the locking sleeve 4 rotates.
When the locking is not needed, the locking sleeve 4 is reversely rotated, the inner cylinder 6 drives the ring body 62 to restore to the original position, and the self-elasticity of the rubber sleeve 3 can restore to the original state, so that the rubber sleeve is convenient to repeatedly use.
Example 2
The present embodiment is intended to facilitate solving the problem of how to perform labor-saving operation on the locking sleeve 4, and is an improvement made on the basis of embodiment 1, specifically, referring to fig. 1-4, the locking sleeve 4 and the rubber sleeve 3 are both in conical structures, and the diameters of the ends of the locking sleeve 4 and the rubber sleeve 3, which are close to the inner cylinder 6, are smaller than those of the ends of the locking sleeve 3, which are far away from the inner cylinder 6.
The locking sleeve 4 rotates at the large circle position, and the locking sleeve 4 rotates with the inner cylinder 6 at the small circle position, so that the labor-saving effect is achieved during use.
The diameter of the ring body 62 is larger than that of the inner cylinder 6, and the outer wall of the ring body 62 is in sliding connection with the inner wall of the locking sleeve 4.
When the ring body 62 moves towards the rubber sleeve 3, the joint of the ring body and the inner cylinder 6 can just press the rubber sleeve 3, and the fastening effect is good.
The handle 43 is rotatably arranged on the outer wall of the locking sleeve 4, and one side of the handle 43 is in fit connection with the outer wall of the locking sleeve 4.
One end of the handle 43 is rotationally connected with one end of the locking sleeve 4 far away from the inner cylinder body 6, the handle 43 is rotated to enable the handle 43 to be perpendicular to the locking sleeve 4, the handle 43 is pressed to drive the locking sleeve 4 to rotate, the force application position is changed, the rotating load is greatly reduced, and the use is labor-saving.
Example 3
The present embodiment is intended to facilitate solving the problem of how to increase the flexibility of the device, and is an improvement made on the basis of embodiment 1, specifically, referring to fig. 1-4, a first pulley 64 is slidably mounted on the outer wall of the inner cylinder 6, and the first pulley 64 is slidably connected to the piston rod 5.
The inner wall of the inner cylinder 6 is provided with a first groove 63, and a first pulley 64 is arranged in the first groove 63.
The inner cylinder 6 slides relative to the piston rod 5, the contact area between the inner cylinder 6 and the piston rod 5 is smaller under the action of the first groove 63, the inner cylinder 6 can move conveniently, the damage of friction between the inner cylinder 6 and the piston rod is reduced, and the sliding flexibility of the inner cylinder 6 and the piston rod is further improved under the action of the first pulley 64.
A second groove body 41 is jointly arranged between the locking sleeve 4 and the hydraulic cylinder barrel 1, a second roller 42 is slidably arranged in the second groove body 41, and the second roller 42 is rotationally connected with the outer wall of the hydraulic cylinder barrel 1.
The locking sleeve 4 is rotationally connected with the hydraulic cylinder barrel 1, under the action of the second groove body 41 and the second roller 42, the flexibility and the stability of the rotation of the locking sleeve 4 and the second roller 42 are increased, the second roller 42 is positioned in the second groove body 41, and the locking sleeve 4 and the hydraulic cylinder barrel 1 are prevented from being separated due to the limiting function, so that the locking sleeve is convenient to use.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (8)
1. The utility model provides a pneumatic cylinder locking structure, includes hydraulic cylinder (1), its characterized in that: the one end of hydraulic cylinder (1) alternates there is piston rod (5), piston rod (5) one end fixed mounting have with hydraulic cylinder (1) sliding connection's piston head (2.) hydraulic cylinder (1) one end rotates installs locking sleeve (4), screw thread installs interior barrel (6) on the inner wall of locking sleeve (4), fixed mounting has slider (61) on the inner wall of interior barrel (6), interior barrel (6) and piston rod (5) sliding connection, hydraulic cylinder (1) one end fixed mounting has rubber sleeve (3), rubber sleeve (3) are located locking sleeve (4), one end fixed mounting that is close to rubber sleeve (3) of interior barrel (6) has ring body (62), ring body (62) are located between hydraulic cylinder (1) and rubber sleeve (3).
2. A hydraulic cylinder locking arrangement according to claim 1, wherein: the outer wall of the piston rod (5) is provided with a sliding groove (51), the length of the sliding groove (51) is shorter than that of the piston rod (5), and the sliding groove (51) is in sliding connection with the sliding block (61).
3. A hydraulic cylinder locking arrangement according to claim 1, wherein: the locking sleeve (4) and the rubber sleeve (3) are of conical structures, and the diameters of one ends of the locking sleeve (4) and the rubber sleeve (3) close to the inner cylinder body (6) are smaller than those of one ends of the locking sleeve far away from the inner cylinder body (6).
4. A hydraulic cylinder locking arrangement according to claim 1, wherein: the diameter of the ring body (62) is larger than that of the inner cylinder body (6), and the outer wall of the ring body (62) is in sliding connection with the inner wall of the locking sleeve (4).
5. A hydraulic cylinder locking arrangement according to claim 1, wherein: the outer wall of the inner cylinder body (6) is slidably provided with a first pulley (64), and the first pulley (64) is slidably connected with the piston rod (5).
6. The hydraulic cylinder lock structure according to claim 5, wherein: the inner wall of the inner cylinder body (6) is provided with a first groove body (63), and the first pulley (64) is arranged in the first groove body (63).
7. A hydraulic cylinder locking arrangement according to claim 1, wherein: a second groove body (41) is jointly formed between the locking sleeve (4) and the hydraulic cylinder barrel (1), a second roller (42) is mounted in the second groove body (41) in a sliding mode, and the second roller (42) is rotatably connected with the outer wall of the hydraulic cylinder barrel (1).
8. A hydraulic cylinder locking arrangement according to claim 1, wherein: the outer wall of the locking sleeve (4) is rotatably provided with a handle (43), and one side of the handle (43) is connected with the outer wall of the locking sleeve (4) in a fitting way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320675060.8U CN219570499U (en) | 2023-03-30 | 2023-03-30 | Hydraulic cylinder locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320675060.8U CN219570499U (en) | 2023-03-30 | 2023-03-30 | Hydraulic cylinder locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219570499U true CN219570499U (en) | 2023-08-22 |
Family
ID=87661707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320675060.8U Active CN219570499U (en) | 2023-03-30 | 2023-03-30 | Hydraulic cylinder locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219570499U (en) |
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2023
- 2023-03-30 CN CN202320675060.8U patent/CN219570499U/en active Active
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