CN212155331U

CN212155331U - Oil cylinder piston buffering device

Info

Publication number: CN212155331U
Application number: CN202020644790.8U
Authority: CN
Inventors: 李涵
Original assignee: Changzhou Xinhan Oil Cylinder Manufacturing Co ltd
Current assignee: Changzhou Xinhan Oil Cylinder Manufacturing Co ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-12-15
Anticipated expiration: 2030-04-26

Abstract

The utility model discloses an oil cylinder piston buffer, the power distribution cylinder comprises a cylinder body, the cylinder body bottom is provided with the base, be provided with the piston in the cavity of cylinder body and be synchronous motion's piston rod with the piston, the base middle part is provided with into oil return opening, be connected with buffer gear between base and the piston, buffer gear includes valve block, pagoda spring and valve rod, the valve block sets up in the end of advancing oil return opening, valve rod one end is fixed on the piston, and the other end passes the valve block and advances oil return opening grafting matching, pagoda spring coupling is in valve block and piston and cup joint on the valve rod. The oil cylinder piston buffering device is simple in structure, reasonable in design and good in buffering effect.

Description

Oil cylinder piston buffering device

Technical Field

The utility model belongs to the technical field of the hydro-cylinder, concretely relates to hydro-cylinder piston buffer.

Background

Along with the development of economy, the use of hydro-cylinder relates to the life aspect, especially in heavy equipment's the lift and support field, the hydro-cylinder plays huge effect, however the hydro-cylinder is when the pressure release shrink, because heavy equipment quality is great, the piston can produce great impact force to the hydro-cylinder base for base and piston damage even fracture.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an hydro-cylinder piston buffer to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an oil cylinder piston buffer, includes the cylinder body, the cylinder body bottom is provided with the base, be provided with the piston in the cavity of cylinder body and be synchronous motion's piston rod with the piston, the base middle part is provided with into oil return opening, be connected with buffer gear between base and the piston, buffer gear includes valve block, pagoda spring and valve rod, the valve block sets up in the end of advancing oil return opening, valve rod one end is fixed on the piston, and the other end passes the valve block and advances oil return opening grafting matching, pagoda spring coupling is in valve block and piston and cup joint on the valve rod.

Preferably, the wider end of the pagoda spring is fixedly connected with the piston, and the other end of the pagoda spring is a free end.

Preferably, the valve plate is provided with a hole matched with the valve rod in an inserting mode.

The utility model discloses a technological effect and advantage: this hydro-cylinder piston buffer, simple structure, design benefit through install a pagoda spring additional between piston and base, has played fine cushioning effect, has reduced the piston rod because receive the damage of the hydro-cylinder that great external force caused, fine protection the hydro-cylinder.

Drawings

Fig. 1 is a schematic view of a buffer structure of the present invention;

fig. 2 is a schematic view of the overall structure of the present invention.

In the figure: 1. a cylinder body; 2. a base; 3. a piston; 4. a piston rod; 5. a buffer mechanism; 51. a valve plate; 52. a pagoda spring; 53. a valve stem; 6. and an oil inlet and an oil return port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 work belong to the protection scope of the present invention.

The utility model provides a as shown in fig. 1, fig. 2 hydro-cylinder piston buffer, including cylinder body 1, 1 bottom of cylinder body is provided with base 2, be provided with piston 3 in the cavity of cylinder body 1 and be synchronous motion's piston rod 4 with piston 3, 2 middle parts of base are provided with into oil return opening 6, be connected with buffer gear 5 between base 2 and the piston 3, buffer gear 5 includes valve block 51, pagoda spring 52 and valve rod 53, valve block 51 sets up in the end of advancing oil return opening 6, valve rod 53 one end is fixed on piston 3, and the other end passes valve block 51 and advances the oil return opening and pegs graft and match, pagoda spring 52 connects in valve block 51 and piston 3 and cup joints on valve rod 53.

Specifically, the wider end of the pagoda spring 52 is fixedly connected with the piston 3, and the other end is a free end.

Specifically, the valve plate 51 is provided with an opening which is matched with the valve rod 53 in an inserting manner.

The working principle is as follows: this hydro-cylinder piston buffer, install a valve block 51 additional at oil inlet and return opening 6, then be provided with valve rod 53 in piston 3 bottom, valve rod 53 can with oil inlet and return opening 6 peg graft and match, then suit a pagoda spring 52 on valve rod 53, the one end and the piston 3 fixed connection of pagoda spring 52 broad, the other end is the free end and corresponds with valve block 51, when piston 3 retrieves, pagoda spring 52 and valve block 51 contact and constantly compressed, play a fine cushioning effect between base 2 and piston 3, direct collision has been avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an hydro-cylinder piston buffer, includes cylinder body (1), its characterized in that: a base (2) is arranged at the bottom of the cylinder body (1), a piston (3) and a piston rod (4) which moves synchronously with the piston (3) are arranged in a cavity of the cylinder body (1), an oil inlet and return port (6) is arranged in the middle of the base (2), and a buffer mechanism (5) is connected between the base (2) and the piston (3); buffer gear (5) include valve block (51), pagoda spring (52) and valve rod (53), valve block (51) set up in the end of advancing oil return opening (6), valve rod (53) one end is fixed on piston (3), and the other end passes valve block (51) and advances oil return opening grafting matching, pagoda spring (52) are connected in valve block (51) and piston (3) and are cup jointed on valve rod (53).

2. The cylinder piston cushioning device of claim 1, wherein: one wider end of the pagoda spring (52) is fixedly connected with the piston (3), and the other end of the pagoda spring is a free end.

3. The cylinder piston cushioning device of claim 1, wherein: and the valve plate (51) is provided with an opening which is spliced and matched with the valve rod (53).