CN219220901U

CN219220901U - Hydraulic cylinder convenient to connect

Info

Publication number: CN219220901U
Application number: CN202223449665.XU
Authority: CN
Inventors: 魏子奇
Original assignee: Hangzhou Hongxin Machinery Manufacturing Co ltd
Current assignee: Hangzhou Hongxin Machinery Manufacturing Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-20
Anticipated expiration: 2032-12-21

Abstract

The utility model relates to the field of hydraulic cylinders, and discloses a hydraulic cylinder convenient to connect, which comprises a cylinder body, wherein the upper end of one side of the cylinder body is fixedly connected with a main oil pipe, the other side of the top end of the cylinder body is fixedly connected with an auxiliary oil pipe, the inner side wall of the cylinder body is fixedly connected with a stop disc, the inside of the cylinder body on one side of the stop disc is movably connected with a piston body, one side of the piston body is fixedly connected with a piston rod extending to the outside of the cylinder body, the other side of the surface of the cylinder body is fixedly connected with a mounting plate, and one side of the mounting plate is movably connected with a connecting plate. This pneumatic cylinder convenient to connect realizes the dismouting action between connecting plate and the mounting panel through the screw-thread fit of fixing bolt and bolt hole to utilize the elasticity of installation spring, make the installation piece remove the card to the mounting hole inside, avoid fixing bolt to be perhaps with the bolt hole inside between the screw thread not hard up, guarantee the firm installation between connecting plate and the mounting panel, and then be convenient for the quick connect dismouting between cylinder body and the connecting plate.

Description

Hydraulic cylinder convenient to connect

Technical Field

The utility model relates to the field of hydraulic cylinders, in particular to a hydraulic cylinder convenient to connect.

Background

The hydraulic cylinder is a hydraulic executive component which converts hydraulic energy into mechanical energy and performs linear reciprocating motion, and is widely applied to various current mechanical hydraulic systems due to the advantages of simple structure, reliable operation and the like, thereby greatly facilitating hydraulic operation in the industries.

In the chinese utility model patent: the hydraulic cylinder comprises a base and a guide sleeve, wherein a cylinder body is fixedly connected to the base, a cylinder barrel is arranged on the cylinder body, a working cavity is formed in the cylinder barrel, a piston structure is arranged in the working cavity, the right side of the piston structure is fixedly connected with a piston rod, a second oil duct is formed in the cylinder body, the right side of the second oil duct is communicated with a communication channel, and the communication channel is communicated with a third oil duct at the lower side of the interior of the cylinder body; the uide bushing sets up on the right side of cylinder body, and uide bushing internally mounted has first sealing washer, and first sealing washer right side is provided with the second sealing washer simultaneously, and the right side tip fixedly connected with stand pipe of cylinder, and installs the fixed block on the cylinder. This pneumatic cylinder avoids outside sewage to enter into the cylinder inside, also avoids the inside hydraulic oil of working chamber to leak into the external world simultaneously, causes environmental pollution.

The following problems exist in the prior art:

1. in the prior art, the hydraulic cylinder is inconvenient to connect rapidly and stably, the cylinder body is usually welded and fixed with external part equipment, so that the cylinder body is inconvenient to assemble and disassemble, or the cylinder body is connected by bolts and nuts, but screw loosening can occur, and the firm stability of connection and installation of the cylinder body is affected.

2. In the prior art, the hydraulic cylinder is inconvenient to buffer and protect, the piston rod is made to stretch and retract during hydraulic oil conveying, and after the piston body moves to the stroke end point at the moment, the piston body is easy to collide with the inner wall of the cylinder body due to inertia of the piston body, so that the service life of the cylinder body can be reduced.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the hydraulic cylinder which is convenient to connect, has the advantages of being convenient for quick and stable connection, being convenient for buffering protection and the like, and solves the problems in the prior art.

(II) technical scheme

In order to achieve the purposes of being convenient for quick and stable connection and convenient for buffer protection, the utility model provides the following technical scheme: the utility model provides a pneumatic cylinder convenient to connect, includes the cylinder body, the upper end fixed connection and the main oil pipe of cylinder body one side, the opposite side fixedly connected with auxiliary oil pipe on cylinder body top, the inside wall fixedly connected with of cylinder body stops the dish, the inside swing joint of cylinder body that stops dish one side has the piston body, the inside both sides swing joint of piston body has protective structure, piston body one side fixedly connected with extends to the outside piston rod of cylinder body, the opposite side fixedly connected with mounting panel of cylinder body surface, one side swing joint of mounting panel has the connecting plate, the inside swing joint of mounting panel has mounting structure.

The mounting structure comprises a fixing bolt, fixing bolt swing joint is in one side of connecting plate, the mounting hole has been seted up to one side of fixing bolt inside, the bolt hole has been seted up to one side of mounting panel inside, the mounting groove has been seted up to the mounting panel inside of bolt hole one end, mounting panel surface swing joint has the installation pole that extends to the inside of mounting groove, the one end fixedly connected with installation piece of installation pole, the installation pole surface winding of installation piece one end has the installation spring, through the screw-thread fit of fixing bolt and bolt hole, realizes the dismouting action between connecting plate and the mounting panel to utilize the elasticity of installation spring, make the installation piece remove the card to inside the mounting hole, avoid the screw thread between the inside perhaps and the bolt hole of fixing bolt to become flexible, guarantee firm installation between connecting plate and the mounting panel, and then be convenient for quick connect between cylinder body and the connecting plate is fixed, improves its practicality.

Preferably, a thread matching structure is formed between the fixing bolt and the inside of the bolt hole, and six fixing bolts and six bolt holes are distributed at equal angles, so that the installation firmness between the connecting plate and the mounting plate is improved.

Preferably, a clamping structure is formed between the installation block and the inside of the installation hole, the height of the installation block is smaller than the depth of the inside of the installation spring, the looseness of threads in the fixing bolt and the bolt hole is avoided, and the firm stability of installation between the connecting plate and the installation plate is ensured.

Preferably, the protection structure comprises a protection groove, the both sides inside the piston body are offered to the protection groove, and the inside wall fixedly connected with attenuator of protection groove, the surface winding of attenuator has reset spring, and attenuator one side fixedly connected with extends to the outside protection piece of piston body, one side fixedly connected with rubber block of protection piece, when piston body collides with cylinder body inner wall, the rubber block can contact with it earlier, and then makes the rubber block remove and drives the protection piece and remove, makes its slip compression attenuator and reset spring, and then utilizes the attenuator to consume the elastic potential energy that reset spring compression produced, realizes the buffering protection of piston body, avoids the hard collision of piston body and cylinder body inner wall, prolongs the life of cylinder body.

Preferably, one side of the rubber block is arc-shaped, and one side of the rubber block is fixedly connected with one side of the protection block, so that the rubber block is better contacted with the inner wall of the cylinder body and deforms, and the primary buffering protection effect of the rubber block is improved.

Preferably, a sliding structure is formed between one side of the protection block and the inside of the protection groove, and four protection blocks are distributed at equal angles, so that the sliding displacement of the rubber block under the stress is more stable.

Preferably, the shape of the stopping disc is a round cake shape, and one side of the stopping disc is a funnel shape, so that hydraulic oil conveyed by the main oil pipe is better guided, and the piston body is better pushed to slide in the cylinder body.

Preferably, a sliding structure is formed between the piston body and the inner wall of the cylinder body, and an O-shaped sealing ring is fixedly connected to one side of the surface of the piston body, so that the tightness between the surface of the piston body and the inner wall of the cylinder body is improved.

Advantageous effects

Compared with the prior art, the utility model provides a hydraulic cylinder convenient to connect, which comprises the following components

The beneficial effects are that:

1. this pneumatic cylinder convenient to connect, through the mounting structure who sets up, screw thread fit through fixing bolt and bolt hole realizes the dismouting action between connecting plate and the mounting panel, and utilize the elasticity of installation spring, make the installation piece remove the card inside to the mounting hole, avoid the fixing bolt to be perhaps with the bolt hole screw thread between inside not hard up, guarantee the firm installation between connecting plate and the mounting panel, and then be convenient for quick connect between cylinder body and the connecting plate is fixed, avoid the welding to lead to the dismouting inconvenient and influence the maintenance operation to the cylinder body, can avoid taking place the screw thread to become flexible and influence the fastness of cylinder body installation simultaneously, guarantee its long-term and stable use, improve its practicality, thereby the problem of inconvenient quick stable connection has been solved.

2. This pneumatic cylinder convenient to connect, through the protective structure who sets up, at the piston body remove to the stroke terminal point and can't in time stop because of inertia, when leading to collide with the cylinder body inner wall, the rubber piece can contact with it earlier, utilize its self elastic deformation, absorb a part of collision towards can, and too big towards can make the rubber piece remove and drive the protection piece and remove compression damper and reset spring, and then utilize the damper to consume the elastic potential energy that reset spring compression produced, realize the buffering protection of piston body, avoid the hard collision of piston body and cylinder body inner wall, the life of extension cylinder body, reduce the cost of maintenance that produces because of the collision, thereby solve inconvenient buffering protection's problem.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic side view of the mounting plate of the present utility model;

FIG. 3 is a schematic perspective view of a piston body according to the present utility model;

FIG. 4 is a schematic view of a partially enlarged structure of the protective structure of the present utility model;

fig. 5 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

In the figure: 1. stopping the disc; 2. a protective structure; 201. a rubber block; 202. a protective block; 203. a protective groove; 204. a damper; 205. a return spring; 3. a cylinder; 4. an auxiliary oil pipe; 5. a mounting structure; 501. a fixing bolt; 502. a mounting groove; 503. a mounting rod; 504. installing a spring; 505. a mounting block; 506. a mounting hole; 507. bolt holes; 6. a piston rod; 7. a connecting plate; 8. a piston body; 9. a main oil pipe; 10. a mounting plate; 11. an O-shaped sealing ring.

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 preferred embodiments of the hydraulic cylinder for easy connection according to the present utility model are shown in fig. 1 to 5: the utility model provides a pneumatic cylinder convenient to connect, includes cylinder body 3, the upper end fixed connection and the main oil pipe 9 of cylinder body 3 one side, the opposite side fixedly connected with auxiliary oil pipe 4 on cylinder body 3 top, the inside wall fixedly connected with of cylinder body 3 stops the dish 1, the inside swing joint of cylinder body 3 that stops dish 1 one side has piston body 8, the inside both sides swing joint of piston body 8 has protective structure 2, piston body 8 one side fixedly connected with extends to the outside piston rod 6 of cylinder body 3, the opposite side fixedly connected with mounting panel 10 on cylinder body 3 surface, one side swing joint of mounting panel 10 has connecting plate 7, the inside swing joint of mounting panel 10 has mounting structure 5.

The mounting structure 5 comprises a fixing bolt 501, the fixing bolt 501 is movably connected to one side of a connecting plate 7, a mounting hole 506 is formed in one side of the inside of the fixing bolt 501, a bolt hole 507 is formed in one side of the inside of a mounting plate 10, a mounting groove 502 is formed in the inside of the mounting plate 10 at one end of the bolt hole 507, a mounting rod 503 extending to the inside of the mounting groove 502 is movably connected to the surface of the mounting plate 10, a mounting block 505 is fixedly connected to one end of the mounting rod 503, a mounting spring 504 is wound on the surface of the mounting rod 503 at one end of the mounting block 505, the dismounting action between the connecting plate 7 and the mounting plate 10 is realized through the threaded fit of the fixing bolt 501 and the bolt hole 507, and the elastic force of the mounting spring 504 is utilized, so that the mounting block 505 is moved and blocked into the mounting hole 506, screw looseness between the fixing bolt 501 and the inside of the bolt hole 507 is avoided, firm mounting between the connecting plate 7 and the mounting plate 10 is ensured, and quick connection and fixation between a cylinder body 3 and the connecting plate 7 are facilitated, and practicability is improved.

In this embodiment, a screw thread matching structure is formed between the fixing bolt 501 and the inside of the bolt hole 507, six fixing bolts 501 and the bolt hole 507 are distributed at equal angles, and the firmness of installation between the connecting plate 7 and the mounting plate 10 is improved by equally distributing the screw threads of the six fixing bolts 501 and the bolt hole 507.

In this embodiment, a clamping structure is formed between the installation block 505 and the inside of the installation hole 506, and the height of the installation block 505 is smaller than the depth of the inside of the installation spring 504, so that the loosening of the threads inside the fixing bolt 501 and the bolt hole 507 can be avoided through the clamping between the installation block 505 and the inside of the installation hole 506, and the firm stability of the installation between the connection plate 7 and the installation plate 10 is ensured.

Example 2

On the basis of embodiment 1, a preferred embodiment of the hydraulic cylinder convenient for connection provided by the utility model is shown in fig. 1 to 5: the protection structure 2 comprises the protection groove 203, the protection groove 203 is formed in two sides of the inner portion of the piston body 8, the inner side wall of the protection groove 203 is fixedly connected with the damper 204, the surface of the damper 204 is wound with the reset spring 205, one side of the damper 204 is fixedly connected with the protection block 202 extending to the outer portion of the piston body 8, one side of the protection block 202 is fixedly connected with the rubber block 201, when the piston body 8 collides with the inner wall of the cylinder body 3, the rubber block 201 is contacted with the piston body, the rubber block 201 is further enabled to move to drive the protection block 202 to move, the damper 204 and the reset spring 205 are enabled to be slidably compressed, elastic potential energy generated by compression of the reset spring 205 is further consumed by the damper 204, buffer protection of the piston body 8 is achieved, hard collision of the piston body 8 and the inner wall of the cylinder body 3 is avoided, and the service life of the cylinder body 3 is prolonged.

In this embodiment, one side of the rubber block 201 is arc-shaped, and the fixed connection between one side of the rubber block 201 and one side of the protection block 202, through setting up arc-shaped rubber block 201, make its better contact with the inner wall of the cylinder body 3 and take place deformation, improve its preliminary buffering protection effect.

In this embodiment, a sliding structure is formed between one side of the protection block 202 and the inside of the protection slot 203, and four equal angles of the protection block 202 are distributed, and the sliding displacement of the rubber block 201 due to the force is more stable through the sliding between one side of the protection block 202 and the inside of the protection slot 203.

Further, the shape of the holding disk 1 is a round cake, and one side of the holding disk 1 is funnel-shaped, and the hydraulic oil conveyed by the main oil pipe 9 is better guided by the funnel-shaped holding disk 1, so that the piston body 8 can be pushed to slide inside the cylinder body 3 better.

Besides, a sliding structure is formed between the piston body 8 and the inner wall of the cylinder body 3, and an O-shaped sealing ring 11 is fixedly connected to one side of the surface of the piston body 8, and the sealing performance between the surface of the piston body 8 and the inner wall of the cylinder body 3 is improved through the stopping disc 1 on the surface of the piston body 8.

When the piston is used, the auxiliary oil pipe 4 and the main oil pipe 9 are connected with an external hydraulic oil pipeline, and then the sliding of the piston body 8 in the cylinder body 3 can be realized through the oil inlet and the oil outlet of the auxiliary oil pipe 4 and the main oil pipe 9, so that the telescopic action of the piston rod 6 can be realized;

meanwhile, when the piston body 8 moves to the end of the stroke and collides with the inner wall of the cylinder body 3 due to inertia, the rubber block 201 is contacted with the piston body, so that the rubber block 201 moves to drive the protection block 202 to move, the damper 204 and the return spring 205 are compressed in a sliding manner, and the elastic potential energy generated by the compression of the return spring 205 is consumed by the damper 204, so that the buffer protection of the piston body 8 is realized, the hard collision between the piston body 8 and the inner wall of the cylinder body 3 is avoided, and the service life of the cylinder body 3 is prolonged;

when the cylinder body 3 needs to be disassembled, the mounting rod 503 is pulled firstly to enable the mounting block 505 to move and compress the mounting spring 504 to be completely separated from the inside of the mounting hole 506, the fixing bolt 501 is rotated to be completely separated from the inside of the bolt hole 507, the disassembly of the connecting plate 7 and the mounting plate 10 is achieved, and when the cylinder body 3 is assembled, the mounting rod 503 is pulled firstly to enable the mounting block 505 to move to be completely in the inside of the mounting hole 506, the fixing bolt 501 is screwed into the inside of the bolt hole 507, the mounting rod 503 is loosened, the elasticity of the mounting spring 504 is utilized to enable the mounting block 505 to move and clamp the inside of the mounting hole 506, screw loosening between the fixing bolt 501 and the inside of the bolt hole 507 is avoided, firm installation between the connecting plate 7 and the mounting plate 10 is guaranteed, rapid connection and fixation between the cylinder body 3 and the connecting plate 7 are facilitated, and practicality is improved.

To sum up, this pneumatic cylinder convenient to connect, the device can realize the quick assembly disassembly connection between cylinder body 3 and the connecting plate 7, avoids traditional connection fixed inconvenient that leads to the dismouting of cylinder body 3, and then influences the maintenance operation to cylinder body 3, can realize the buffering protection of piston body 8 simultaneously, avoids the rigid collision of piston body 8 and cylinder body 3 inner wall, prolongs the life of cylinder body 3.

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.

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

Claims

1. The utility model provides a pneumatic cylinder convenient to connect, includes cylinder body (3), its characterized in that: the cylinder is characterized in that the upper end of one side of the cylinder body (3) is fixedly connected with a main oil pipe (9), the other side of the top end of the cylinder body (3) is fixedly connected with an auxiliary oil pipe (4), the inner side wall of the cylinder body (3) is fixedly connected with a stop disc (1), the inner side of the cylinder body (3) on one side of the stop disc (1) is movably connected with a piston body (8), two sides of the inner side of the piston body (8) are movably connected with a protection structure (2), one side of the piston body (8) is fixedly connected with a piston rod (6) extending to the outer side of the cylinder body (3), the other side of the surface of the cylinder body (3) is fixedly connected with a mounting plate (10), one side of the mounting plate (10) is movably connected with a connecting plate (7), and the inner side of the mounting plate (10) is movably connected with a mounting structure (5);

mounting structure (5) are including fixing bolt (501), fixing bolt (501) swing joint is in one side of connecting plate (7), mounting hole (506) have been seted up to one side of fixing bolt (501) inside, bolt hole (507) have been seted up to one side of mounting panel (10) inside, mounting groove (502) have been seted up to the mounting panel (10) inside of bolt hole (507) one end, mounting panel (10) surface swing joint has installation pole (503) that extend to inside mounting groove (502), the one end fixedly connected with installation piece (505) of installation pole (503), installation pole (503) surface winding of installation piece (505) one end has installation spring (504).

2. A hydraulic cylinder for facilitating connection according to claim 1, wherein: screw thread matching structures are formed between the fixing bolts (501) and the interiors of the bolt holes (507), and six fixing bolts (501) and the bolt holes (507) are distributed at equal angles.

3. A hydraulic cylinder for facilitating connection according to claim 1, wherein: the mounting block (505) and the inside of the mounting hole (506) form a clamping structure, and the height of the mounting block (505) is smaller than the depth of the inside of the mounting spring (504).

4. A hydraulic cylinder for facilitating connection according to claim 1, wherein: the protection structure (2) comprises protection grooves (203), the protection grooves (203) are formed in two sides of the interior of the piston body (8), the inner side walls of the protection grooves (203) are fixedly connected with dampers (204), return springs (205) are wound on the surfaces of the dampers (204), one side of each damper (204) is fixedly connected with a protection block (202) extending to the exterior of the piston body (8), and one side of each protection block (202) is fixedly connected with a rubber block (201).

5. A hydraulic cylinder for facilitating attachment as defined in claim 4, wherein: one side of the rubber block (201) is arc-shaped, and one side of the rubber block (201) is fixedly connected with one side of the protection block (202).

6. A hydraulic cylinder for facilitating attachment as defined in claim 4, wherein: a sliding structure is formed between one side of the protection block (202) and the inside of the protection groove (203), and four protection blocks (202) are distributed at equal angles.

7. A hydraulic cylinder for facilitating connection according to claim 1, wherein: the shape of the stopping disc (1) is a round cake shape, and one side of the stopping disc (1) is funnel-shaped.

8. A hydraulic cylinder for facilitating connection according to claim 1, wherein: a sliding structure is formed between the piston body (8) and the inner wall of the cylinder body (3), and one side of the surface of the piston body (8) is fixedly connected with an O-shaped sealing ring (11).