CN211039221U

CN211039221U - Pneumatic control cylinder with buffer function

Info

Publication number: CN211039221U
Application number: CN201921756834.XU
Authority: CN
Inventors: 赖健健; 刘大明; 张凤平; 易浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-19
Filing date: 2019-10-19
Publication date: 2020-07-17
Anticipated expiration: 2029-10-19

Abstract

The utility model discloses a pneumatic control cylinder with buffer function, the hydraulic power generation device comprises a cylinder, cylinder lower extreme fixedly connected with lower end cover, cylinder upper end fixedly connected with upper end cover, first business turn over gas port has been seted up to the lower end cover right-hand member, the second business turn over gas port has been seted up to the upper end cover right-hand member, the perforation has been seted up on the upper end cover, swing joint has the piston in the cylinder, fixedly connected with piston rod in the piston, the piston rod upper end is passed the perforation and is upwards extended. This pneumatic control cylinder with buffer function uses through the cooperation of first ring channel and first sealing washer, has improved the leakproofness between piston and cylinder, has reduced the impact force between cylinder and lower cover, reduces the loss of piston, effectively improves the life of cylinder, through setting up the second spring, has reduced the impact force between cylinder and upper end cover, and uses through the cooperation of sliding block and sliding block, further prescribes a limit to the direction of piston rod, has improved the stability of piston rod.

Description

Pneumatic control cylinder with buffer function

Technical Field

The utility model relates to a cylinder technical field specifically is a pneumatic control cylinder with buffer function.

Background

The cylinder is a cylindrical metal part in which a piston is guided to perform linear reciprocating motion, air converts thermal energy into mechanical energy through expansion in the engine cylinder, and gas is compressed by the piston in the compressor cylinder to increase pressure.

With the continuous improvement of the electrification degree, the cylinder has the advantages of reliably working under severe conditions, simple operation and basically realizing the maintenance-free cylinder, so the cylinder is widely applied, but the existing cylinder has the defects that the piston is pushed to move by gas, so the piston is easy to collide with the upper end cover and the lower end cover, the piston is damaged, and the service life is short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic control cylinder with buffer function to propose in solving above-mentioned background and promote the piston through gas and remove, thereby the piston easily bumps with upper and lower end cover, causes the piston to damage, problem that life is low.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pneumatic control cylinder with buffer function, includes the cylinder, cylinder lower extreme fixedly connected with lower end cover, cylinder upper end fixedly connected with upper end cover, first business turn over gas port has been seted up to the lower end cover right-hand member, the second business turn over gas port has been seted up to the upper end cover right-hand member, the perforation has been seted up on the upper end cover, swing joint has the piston in the cylinder, fixedly connected with piston rod in the piston, the piston rod upper end is passed the perforation and is upwards extended.

Preferably, the piston outside is seted up the first ring channel that the equidistance distributes, the block is connected with first sealing washer in the first ring channel, piston and cylinder are concentric circle structure, the external diameter of first sealing washer equals the internal diameter of cylinder.

Preferably, a second annular groove is formed in the through hole, a second sealing ring is connected in the second annular groove in a clamping mode, the inner diameter of the second sealing ring is equal to the outer diameter of the piston rod, and a first spring is fixedly connected to the lower end of the piston.

Preferably, the outer side of the piston rod at the upper end of the piston is fixedly connected with a guide sleeve and a second spring in sequence.

Preferably, the equal fixedly connected with sliding block in both ends about the uide bushing, the sliding tray that the symmetry set up is seted up to the cylinder inboard, sliding block and sliding tray are sliding connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the air pressure control cylinder with the buffering function improves the sealing property between the piston and the cylinder barrel through the matching use of the first annular groove and the first sealing ring;

2. according to the air pressure control cylinder with the buffering function, the first spring is arranged, so that the impact force between the cylinder barrel and the lower end cover is reduced, the loss of the piston is reduced, and the service life of the cylinder is effectively prolonged;

3. this pneumatic control cylinder with buffer function through setting up the second spring, has reduced the impact force between cylinder and upper end cover, and uses through the cooperation of sliding block and sliding block, further prescribes a limit to the direction of piston rod, has improved the stability of piston rod.

Drawings

FIG. 1 is a schematic view of the split structure of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

fig. 3 is a schematic front structural view of the present invention.

In the figure: 1. a cylinder barrel; 2. a lower end cover; 3. an upper end cover; 4. a first inlet/outlet port; 5. a second gas inlet and outlet; 6. perforating; 7. a piston; 8. a piston rod; 9. a first annular groove; 10. a first seal ring; 11. a second annular groove; 12. a second seal ring; 13. a first spring; 14. a guide sleeve; 15. a second spring; 16. a slider; 17. a sliding groove.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a pneumatic control cylinder with a buffering function comprises a cylinder barrel 1, a lower end cover 2, an upper end cover 3, a first air inlet and outlet 4, a second air inlet and outlet 5, a through hole 6, a piston 7, a piston rod 8, a first annular groove 9, a first sealing ring 10, a second annular groove 11, a second sealing ring 12, a first spring 13, a guide sleeve 14, a second spring 15, a sliding block 16 and a sliding groove 17, wherein the lower end of the cylinder barrel 1 is fixedly connected with the lower end cover 2, the upper end of the cylinder barrel 1 is fixedly connected with the upper end cover 3, the right end of the lower end cover 2 is provided with the first air inlet and outlet 4, the right end of the upper end cover 3 is provided with the second air inlet and outlet 5, the upper end cover 3 is provided with the through hole 6, the piston 7 is movably connected in the cylinder barrel 1, the piston;

furthermore, first annular grooves 9 are formed in the outer side of the piston 7 and are distributed at equal intervals, first sealing rings 10 are connected in the first annular grooves 9 in a clamping mode, the piston 7 and the cylinder barrel 1 are of concentric circle structures, the outer diameter of each first sealing ring 10 is equal to the inner diameter of the cylinder barrel 1, and by means of the arrangement of the first sealing rings 10, the sealing performance between the piston 7 and the cylinder barrel 1 is improved, and the effect on the piston 7 after air enters the cylinder barrel 1 is guaranteed;

furthermore, a second annular groove 11 is formed in the through hole 6, a second sealing ring 12 is connected in the second annular groove 11 in a clamping manner, the inner diameter of the second sealing ring 12 is equal to the outer diameter of the piston rod 8, the lower end of the piston 7 is fixedly connected with a first spring 13, and through the arrangement of the second sealing ring 12, dust and impurities are effectively prevented from entering the cylinder barrel 1 to cause abrasion of the piston rod 8;

furthermore, the outer side of the piston rod 8 at the upper end of the piston 7 is fixedly connected with a guide sleeve 14 and a second spring 15 in sequence, and the buffering effect between the piston 7 and the upper end cover 3 is enhanced by arranging the second spring 15;

further, the equal fixedly connected with sliding block 16 in both ends about uide bushing 14, the sliding tray 17 that the symmetry set up is seted up to cylinder 1 inboard, and sliding block 16 and sliding tray 17 are sliding connection, and through sliding block 16 and sliding tray 17's cooperation use, the stationarity when improving the removal of piston rod 8.

The working principle is as follows: firstly, a piston rod 8 is connected with equipment needing to do reciprocating motion, a first air inlet and outlet 4 and a second air inlet and outlet 5 are respectively connected with an air compressor, the air compressor is started, air enters a cylinder barrel 1 from the first air inlet and outlet 4, the air pushes a piston 7 to move upwards, sliding blocks 16 at two ends of a guide sleeve 14 at the upper end of the piston 7 slide upwards in a sliding groove 17 until a second spring 15 is attached to an upper end cover 3, and is compressed to effectively buffer, a piston rod 8 at the upper end of a piston 7 moves upwards synchronously, air at the upper end in the cylinder barrel 1 is discharged from a second air inlet and outlet 5, then air is introduced from the second air inlet and outlet 5, the air pushes the piston 7 downwards until the first spring 13 at the lower end of the piston 7 is jointed with the lower end cover 2 and compressed, at the same time, the air at the inner lower end of the cylinder barrel 1 is discharged from the first air inlet and outlet 4, thereby realizing the reciprocating motion of the piston rod 8.

It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a pneumatic control cylinder with buffer function, includes the cylinder, its characterized in that: the improved cylinder is characterized in that the lower end of the cylinder barrel is fixedly connected with a lower end cover, the upper end of the cylinder barrel is fixedly connected with an upper end cover, the right end of the lower end cover is provided with a first air inlet and outlet, the right end of the upper end cover is provided with a second air inlet and outlet, the upper end cover is provided with a through hole, a piston is movably connected in the cylinder barrel, a piston rod is fixedly connected in the piston, and the upper end of the piston rod penetrates through the.

2. The pneumatic control cylinder with a cushion function as claimed in claim 1, wherein: the piston is characterized in that first annular grooves distributed at equal intervals are formed in the outer side of the piston, first sealing rings are connected in the first annular grooves in a clamping mode, the piston and the cylinder barrel are of concentric circle structures, and the outer diameter of each first sealing ring is equal to the inner diameter of the cylinder barrel.

3. The pneumatic control cylinder with a cushion function as claimed in claim 1, wherein: a second annular groove is formed in the through hole, a second sealing ring is connected in the second annular groove in a clamping mode, the inner diameter of the second sealing ring is equal to the outer diameter of the piston rod, and a first spring is fixedly connected to the lower end of the piston.

4. The pneumatic control cylinder with a cushion function as claimed in claim 1, wherein: and the outer side of the piston rod at the upper end of the piston is fixedly connected with a guide sleeve and a second spring in sequence.

5. The pneumatic control cylinder with a cushion function as claimed in claim 4, wherein: the equal fixedly connected with sliding block in both ends about the uide bushing, the sliding tray that the symmetry set up is seted up to the cylinder inboard, sliding block and sliding tray are sliding connection.