CN218467970U

CN218467970U - Oil cylinder with locking device

Info

Publication number: CN218467970U
Application number: CN202222497312.0U
Authority: CN
Inventors: 周秀明
Original assignee: Yancheng Zhensheng Hydraulic Machinery Co ltd
Current assignee: Yancheng Zhensheng Hydraulic Machinery Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-02-10
Anticipated expiration: 2032-09-21

Abstract

The utility model relates to a hydraulic means technical field specifically is a hydro-cylinder with locking device, include, including hydro-cylinder base, hydro-cylinder base upper end fixed mounting has the hydro-cylinder main part, the inside slidable piston assembly that is provided with of hydro-cylinder main part, and wears out the hydro-cylinder main part on the piston assembly, and hydro-cylinder main part upper end fixed mounting has locking device, locking device and piston assembly damping setting. The utility model discloses a locking device 4 forms balancedly at the locking power that the locking in-process supplied with a plurality of directions, strengthens the effect of locking, prevents because the damage edge leakage problem that one side hydraulic pressure too high leads to increases the security of locking hydro-cylinder.

Description

Oil cylinder with locking device

Technical Field

The utility model relates to a hydraulic means technical field specifically is a hydro-cylinder with locking device.

Background

The hydraulic oil cylinder is an actuating mechanism which converts hydraulic energy into mechanical energy in a hydraulic device and realizes linear reciprocating motion. In equipment application, the oil cylinder is often required to be reliably locked at any output working position and fixed for a long time.

However, most of the existing tightening devices rotate to lock the piston rod through a single bolt on one side to achieve the purpose of locking, and the locking device can cause the problem of side leakage under the condition that large pressure occurs inside the oil cylinder, so that hydraulic oil of the piston cannot be stably ensured to be continuously locked at any position, the locking oil cylinder can be damaged, the safety of the locking oil cylinder is affected, the personal safety of operators can be endangered, and great potential safety hazards exist. In view of this, we propose a cylinder with a locking device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydro-cylinder with locking device, this kind of hydro-cylinder with locking device has solved foretell problem.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an oil cylinder with a locking device comprises an oil cylinder base, wherein an oil cylinder main body is fixedly mounted at the upper end of the oil cylinder base, a slidable piston assembly is arranged in the oil cylinder main body, the upper end of the piston assembly penetrates out of the oil cylinder main body, the locking device is fixedly mounted at the upper end of the oil cylinder main body, and the locking device and the piston assembly are arranged in a damping mode;

locking device includes base, inner chamber groove, gear, rack, threaded rod, sliding seat, the piece of gluing, rubber pad, slide and slide bar, and base fixed mounting is in hydro-cylinder main part upper end, and the inner chamber groove is seted up at the middle part in the base, and a plurality of gear is installed to inner chamber inslot equidistance, and sets up the meshing through the rack between the gear and drive, and the gear leans on interior one side middle part fixed mounting threaded rod, and the sliding seat is established to the cover on the threaded rod, sliding seat and threaded rod thread engagement, and the sliding seat leans on interior one side middle part fixed mounting rubber pad, and the rubber pad is installed to the sliding seat by interior one side bilateral symmetry.

Preferably, the front end of the oil cylinder base is provided with a pressure oil inlet, and the pressure oil inlet is communicated with the oil cylinder main body.

Preferably, the oil cylinder main body comprises an oil cylinder outer wall, an oil cylinder inner cavity, a limiting rod, a sealing rubber ring and a damping fixture block, the limiting rod is arranged in the oil cylinder outer wall, the limiting rod is fixedly connected with the oil cylinder base, and the oil cylinder inner cavity is formed between the oil cylinder outer wall and the limiting rod.

Preferably, a sealing rubber ring is fixedly installed on the inner upper side of the cavity of the oil cylinder, and a plurality of damping clamping blocks are fixedly installed on the inner side of the sealing rubber ring.

Preferably, the piston assembly comprises a pull ring, a piston base, a piston connecting rod, a piston and a limiting sliding groove, the piston base is fixedly installed at the lower end of the pull ring, and the piston connecting rod is fixedly installed at the lower end of the piston base.

Preferably, the piston connecting rod lower extreme penetrates into the oil cylinder inner chamber, piston connecting rod lower extreme fixed mounting piston, and piston connecting rod and piston all with gag lever post sliding connection, a plurality of spacing spout is seted up to the piston connecting rod side.

Preferably, a sliding plate is fixedly mounted at the lower end of the movable seat, a sliding rod is arranged in the middle of the sliding plate in a sliding manner, one end of the sliding rod is fixedly connected with one side of the inner side of the base, and the other end of the sliding rod is fixedly connected with the limiting rod.

Borrow by above-mentioned technical scheme, the utility model provides an hydro-cylinder with locking device. The method at least has the following beneficial effects:

(1) The utility model discloses a sealed glue ring that sets up will improve hydro-cylinder inner chamber intracavity upper end sealing capacity, reduces hydraulic oil and further leaks, and secondly the clamping type damping utility of damping fixture block and spacing spout directly influences hydraulic oil at the piston in-process that slides that rises, leaks the problem through spacing spout, increases the device practicality.

(2) The utility model discloses a set up spacing spout and carry out the snap-on locking with gluing the piece, the piston rod of being convenient for is in the arbitrary high locking that locks to increased the practicality of its device, locked the structure and had more the extensive usage for on the market.

(3) The utility model discloses a locking device 4 forms balancedly at the locking power that the locking in-process supplied with a plurality of directions, strengthens the effect of locking, prevents because the damage side leakage problem that one side hydraulic pressure too high leads to increases the security of locking hydro-cylinder.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the main body of the oil cylinder of the present invention;

FIG. 3 is a schematic structural view of a piston assembly according to the present invention;

fig. 4 is a schematic structural diagram of the middle locking device of the present invention.

In the figure: 1. an oil cylinder base; 2. a cylinder main body; 3. a piston assembly; 4. a locking device; 5. a pressure oil inlet;

21. the outer wall of the oil cylinder; 22. an inner cavity of the oil cylinder; 23. a limiting rod; 24. sealing the rubber ring; 25. a damping fixture block; 31. a pull ring; 32. a piston base; 33. a piston connecting rod; 34. a piston; 35. a limiting chute; 41. a base; 42. an inner cavity groove; 43. a gear; 44. a rack; 45. a threaded rod; 46. a movable seat; 47. a rubber block; 48. a rubber pad; 49. a slide plate; 410. a slide bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

an oil cylinder with a locking device comprises an oil cylinder base 1, wherein an oil cylinder main body 2 is fixedly mounted at the upper end of the oil cylinder base 1, a pressure oil inlet 5 is formed in the front end of the oil cylinder base 1, the pressure oil inlet 5 is communicated with an oil cylinder inner cavity 22, a slidable piston assembly 3 is arranged in the oil cylinder main body 2, the upper end of the piston assembly 3 penetrates out of the oil cylinder main body 2, a locking device 4 is fixedly mounted at the upper end of the oil cylinder main body 2, and the locking device 4 and the piston assembly 3 are arranged in a damping mode;

the oil cylinder main body 2 comprises an oil cylinder outer wall 21, an oil cylinder inner cavity 22, a limiting rod 23, a sealing rubber ring 24 and damping fixture blocks 25, the limiting rod 23 is arranged in the oil cylinder outer wall 21, the limiting rod 23 is fixedly connected with the oil cylinder base 1, the stability of the lifting process of the piston 34 is further improved through the sliding arrangement between the limiting rod 23 and the piston connecting rod 33, the damage caused under the high-pressure condition of hydraulic oil is reduced, meanwhile, the lifting damping property of the piston 34 is improved so as to bear the hydraulic pressure with higher strength, the oil cylinder inner cavity 22 is formed between the oil cylinder outer wall 21 and the limiting rod 23, the sealing rubber ring 24 is fixedly arranged on the inner upper side of the oil cylinder inner cavity 22, a plurality of damping fixture blocks 25 are fixedly arranged on the inner side of the sealing rubber ring 24, the damping fixture blocks 25 correspond to the limiting chutes 35 in number, the sealing rubber ring 24 is arranged so that the sealing capacity of the upper end in the oil cylinder inner cavity 22 is improved, the further leakage of the hydraulic oil is reduced, and the clamping type damping of the damping fixture blocks 25 and the limiting chutes 35 directly influences the lifting sliding process of the piston 34, the leakage problem is solved through the limiting chutes 35, and the practicability of the device is improved;

the piston assembly 3 comprises a pull ring 31, a piston base 32, a piston connecting rod 33, a piston 34 and a limiting chute 35, wherein the piston base 32 is fixedly installed at the lower end of the pull ring 31, the piston connecting rod 33 is fixedly installed at the lower end of the piston base 32, the lower end of the piston connecting rod 33 penetrates into the inner cavity 22 of the oil cylinder, the piston 34 is fixedly installed at the lower end of the piston connecting rod 33, the piston connecting rod 33 and the piston 34 are both in sliding connection with the limiting rod 23, the side face of the piston connecting rod 33 is provided with a plurality of limiting chutes 35, the limiting chutes 35 are arranged to be small in inner ring and large in outer ring, and the limiting chutes 35 and the rubber block 47 are arranged to be locked in a clamping manner, so that the piston connecting rod 33 can be locked at any height, the practical capacity of the device is increased, and the device has wide application range relative to a locking structure in the market;

the locking device 4 comprises a base 41, an inner cavity groove 42, a gear 43, a rack 44, a threaded rod 45, a movable seat 46, a rubber block 47, a rubber pad 48, a sliding plate 49 and a sliding rod 410, wherein the base 41 is circular, the base 41 is fixedly arranged at the upper end of the oil cylinder main body 2, a base platform is provided by matching with the locking of the piston connecting rod 33, the inner cavity groove 42 is formed in the middle of the base 41, the inner cavity groove 42 is arc-shaped, so that the locking force in multiple directions can be supplied to form balance in the locking process, the problem of damage and side leakage caused by overhigh hydraulic pressure at one side can be prevented, a plurality of gears 43 are arranged in the inner cavity groove 42 at equal intervals, the gears 43 are driven by meshing of the rack 44, a rotating button is attached to the outer side of one gear 43, the rack 44 is constructed in an arc shape by adopting a rubber material, the operation in the inner cavity groove 42 can be convenient, the whole linkage is increased, the threaded rod 45 is fixedly arranged at the middle of the inner side of the gear 43, the movable seat 46 is sleeved on the threaded rod 45, the movable seat 46 is in threaded engagement with the threaded rod 45, the threaded rod 45 is only provided with threads in the middle, so that the condition that the movable seat 46 slides out of the threaded rod 45 is prevented, the middle of the inner side of the movable seat 46 is fixedly provided with the rubber block 47, the rubber block 47 is designed into a circular truncated cone shape, the whole size is slightly larger than the diameter of the limiting chute 35, the contact area between the side surface of the rubber block 47 and the piston connecting rod 33 is further increased, the locking purpose is achieved, meanwhile, the inner side of the movable seat 46 is symmetrically provided with the rubber pads 48 in the left-right direction, the strength of the locking is enhanced, the locking effect is improved, the lower end of the movable seat 46 is fixedly provided with the sliding plate 49, the middle of the sliding plate 49 is provided with the sliding rod 410 in a sliding manner, one end of the sliding rod 410 is fixedly connected with one side of the inner side of the base 41, the other end of the sliding rod 410 is fixedly connected with the limiting rod 23, and the stability of the movable seat 46 in the process of assisting the threaded rod 45 in the sliding process of engagement, the sliding effect is improved, and the damping sense in the moving process is reduced.

The utility model discloses an hydro-cylinder with locking device is when using, through the 5 injection hydraulic oil of pressure oil inlet, piston 34 receives the pressure of hydraulic oil and will directly promote piston rod 33 and move up, be in the formulation height when pull ring 31 linkage, through rotating the turn-button, install gear 43 on the turn-button and rotate, it makes other gear 43 move simultaneously to drive rack 44, it is unified to reach, threaded rod 45 meshes the rotation with sliding seat 46 this moment, the spacing slip of slide bar 410 that cooperation slide 49 received, promote to glue in block 47 block income limiting chute 35, because the model of gluing block 47 is great, with the groove medial surface of the spacing spout 35 of direct contact, increase tight locking area, promote the required damping utility of tight lock, rubber pad 48 is with the lateral surface of direct contact piston rod 33 simultaneously, strengthen the effect of tight lock, the side leakage influence that the shake was brought, increase the security of locking hydro-cylinder.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an hydro-cylinder with locking device, includes cylinder base (1), its characterized in that: an oil cylinder main body (2) is fixedly installed at the upper end of the oil cylinder base (1), a slidable piston assembly (3) is arranged in the oil cylinder main body (2), the upper end of the piston assembly (3) penetrates out of the oil cylinder main body (2), a locking device (4) is fixedly installed at the upper end of the oil cylinder main body (2), and the locking device (4) and the piston assembly (3) are arranged in a damping mode;

locking device (4) are including base (41), inner chamber groove (42), gear (43), rack (44), threaded rod (45), sliding seat (46), glue piece (47), rubber pad (48), slide (49) and slide bar (410), and base (41) fixed mounting is in hydro-cylinder main part (2) upper end, inner chamber groove (42) are seted up to middle part in base (41), a plurality of gear (43) are installed to equidistance in inner chamber groove (42), and set up the meshing through rack (44) between gear (43) and drive, gear (43) lean on interior one side middle part fixed mounting threaded rod (45), sliding seat (46) are established to the cover on threaded rod (45), sliding seat (46) and threaded rod (45) screw-thread engagement, sliding seat (46) lean on interior one side middle part fixed mounting glue piece (47).

2. The oil cylinder with the locking device as claimed in claim 1, wherein: the front end of the oil cylinder base (1) is provided with a pressure oil inlet (5), and the pressure oil inlet (5) is communicated with the oil cylinder main body (2).

3. The oil cylinder with the locking device as claimed in claim 1, wherein: the oil cylinder main body (2) comprises an oil cylinder outer wall (21), an oil cylinder inner cavity (22), a limiting rod (23), a sealing rubber ring (24) and a damping clamping block (25), the limiting rod (23) is arranged in the oil cylinder outer wall (21), the limiting rod (23) is fixedly connected with the oil cylinder base (1), and the oil cylinder inner cavity (22) is formed between the oil cylinder outer wall (21) and the limiting rod (23).

4. A cylinder with a locking device according to claim 3, characterized in that: and a sealing rubber ring (24) is fixedly arranged on the upper side in the cavity of the oil cylinder inner cavity (22), and a plurality of damping clamping blocks (25) are fixedly arranged on the inner side of the sealing rubber ring (24).

5. The cylinder with the locking device as claimed in claim 1, wherein: the piston assembly (3) comprises a pull ring (31), a piston base (32), a piston connecting rod (33), a piston (34) and a limiting sliding groove (35), the piston base (32) is fixedly installed at the lower end of the pull ring (31), and the piston connecting rod (33) is fixedly installed at the lower end of the piston base (32).

6. The oil cylinder with the locking device as claimed in claim 5, wherein: piston connecting rod (33) lower extreme penetrates into oil cylinder inner chamber (22), piston connecting rod (33) lower extreme fixed mounting piston (34), and piston connecting rod (33) and piston (34) all with gag lever post (23) sliding connection, a plurality of spacing spout (35) are seted up to piston connecting rod (33) side.

7. The cylinder with the locking device as claimed in claim 1, wherein: a sliding plate (49) is fixedly mounted at the lower end of the movable seat (46), a sliding rod (410) is arranged in the middle of the sliding plate (49) in a sliding mode, one end of the sliding rod (410) is fixedly connected with one side of the inner side of the base (41), and the other end of the sliding rod (410) is fixedly connected with the limiting rod (23).