CN214366986U

CN214366986U - Cylinder with built-in buffer device

Info

Publication number: CN214366986U
Application number: CN202120296083.9U
Authority: CN
Inventors: 胡立新; 张赞; 南铁铭; 谭明柱
Original assignee: Desto Pneumatic Elements Co ltd
Current assignee: Desto Pneumatic Elements Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-10-08
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses a cylinder with a built-in buffer device, which comprises a cylinder barrel, wherein one end of the cylinder barrel is provided with a rodless end cover, and the other end of the cylinder barrel is provided with a rod side end cover; a piston is arranged in the cylinder barrel, a first buffer device is arranged at one end of the rodless end cover and comprises a first buffer piece, a first spring groove is formed in one end of the first buffer piece, and a first buffer spring is arranged in the first spring groove; one end of the first buffer piece is provided with a first limiting block position; one end of the rodless end cover is provided with a first guide groove, and a first limiting groove is formed in the corresponding position of the rodless end cover and the first limiting block; a second buffer device is arranged at one end of the rod side end cover and comprises a second buffer piece, a second spring groove is formed in one end of the second buffer piece, and a second buffer spring is arranged in the second spring groove; a second limiting block is arranged at one end of the second buffer piece, a second guide groove is arranged at one end of the rod side end cover, and a second limiting groove is arranged at the position, corresponding to the second limiting block, of the rod side end cover; the piston impact buffering device has the effect of buffering the impact of the piston.

Description

Cylinder with built-in buffer device

Technical Field

The utility model relates to a pneumatic element field, specifically speaking it relates to a built-in buffer's cylinder.

Background

The cylinder refers to a cylindrical metal work that guides the piston to reciprocate linearly in the cylinder. Air converts thermal energy into mechanical energy by expansion in an engine cylinder; the gas is compressed by a piston in a cylinder of the compressor to increase the pressure; housings for turbines, rotary piston engines, and the like are also commonly referred to as "cylinders"; the general cylinder can not control the self power in work, so that the piston can directly collide with the end cover in work, the working life of a port is shortened in long-time work, the fixed position of the cylinder is easy to loosen, the position of the cylinder deviates, and the cylinder cannot normally work.

Disclosure of Invention

The utility model provides a not enough to prior art exists, the utility model provides a built-in buffer's cylinder has buffering effect.

In order to achieve the above purpose, the utility model provides a following technical scheme: a cylinder with a built-in buffer device comprises a cylinder barrel, wherein one end of the cylinder barrel is provided with a rodless end cover, and the other end of the cylinder barrel is provided with a rod side end cover; a piston is arranged in the cylinder barrel, a piston rod is arranged on the piston, a first buffer device is arranged at one end, close to the piston, of the rodless end cover, the first buffer device comprises a first buffer piece, a first spring groove is arranged at one end, close to the rodless port, of the first buffer piece, and a first buffer spring is arranged in the first spring groove; one end of the first buffer piece close to the direction of the rodless end cover extends outwards to form a first limiting block; a first guide groove is formed in one end, close to the piston direction, of the rodless end cover, and corresponds to the first buffer piece, and a first limiting groove is formed in the position, corresponding to the first limiting block, of the rodless end cover; the first buffer piece moves repeatedly in the first guide groove and the first limiting groove; a second buffer device is arranged at one end, close to the piston, of the rod side end cover, and comprises a second buffer piece, a second spring groove is formed at one end, close to the measuring rod end cover, of the second buffer piece, and a second buffer spring is arranged in the second spring groove; one end of the second buffer piece, which is close to the rod side end cover, extends outwards to form a second limiting block, a second guide groove is arranged at the position, corresponding to the second buffer piece, of the rod side end cover, and a second limiting groove is arranged at the position, corresponding to the second limiting block, of the measuring rod end cover; the second buffer piece moves repeatedly in the second guide groove and the second limiting groove.

By adopting the technical scheme, the piston repeatedly moves in the cylinder barrel, when the piston moves towards the direction of the rodless end cover, the piston can be firstly contacted with the first buffer part, the first buffer part is driven by the piston to move in the direction of the rodless end cover in the first guide groove, and the first spring in the first buffer part also elastically deforms at the same time, so that the power generated by the motion of the piston is buffered; the piston moves towards the rod side end placing direction, the piston contacts with the second buffer piece firstly, the second buffer piece is driven by the piston to move towards the rod side end cover in the second guide groove, the second buffer spring in the second buffer piece simultaneously carries out elastic deformation, power generated by the motion of the piston is buffered, the vibration amplitude of the whole cylinder in work is reduced, the service life of the end cover is prolonged, and the fixed position of the cylinder is not easy to loosen.

The utility model discloses further set up to, first bolster, the second bolster outside are provided with a plurality of through-holes respectively.

Through adopting above-mentioned technical scheme, set up a plurality of through-holes on first bolster and the second bolster, make the air circulate fast in first buffer, second buffer, can not cause the unable phenomenon that flows of air at the cylinder, make first buffer, second buffer can not remove along with the air.

The utility model discloses further set up to: one end of the piston, which is close to the first buffer device, is provided with a first rubber block; and a second rubber block is arranged at one end of the piston close to the second buffer device.

Through adopting above-mentioned technical scheme, make the piston reduce with first buffer, the impact force of second buffer when touching, increase the life of first bolster and second bolster.

Drawings

FIG. 1 is a schematic structural diagram of a cylinder with a built-in damping device according to an embodiment;

FIG. 2 is a top view of a cylinder with a built-in damper according to the present embodiment;

FIG. 3 is a sectional view of the present embodiment A-A;

FIG. 4 is a schematic structural view of the first damping device, the piston and the second damping device;

FIG. 5 is an enlarged view of portion A of FIG. 3;

FIG. 6 is an enlarged view of portion B of FIG. 3;

reference numerals: 1. a cylinder barrel; 11. a rodless end cap; 111. a first guide groove; 112. a first limit groove; 12. a rod-side end cap; 121. a second guide groove; 122. a second limit groove; 13. a piston; 131. a first rubber block; 132. a second rubber block; 14. a piston rod; 2. a first buffer device; 21. a first buffer member; 22. a first spring groove; 23. a first buffer spring; 24. a first stopper; 3. a second buffer device; 31. a second buffer member; 32. a second spring groove; 33. a second buffer spring; 34. a second limiting block; 4. and a through hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a cylinder with a built-in buffer device, and as shown in fig. 1 to 6, the cylinder with the built-in buffer device comprises a cylinder barrel 1, wherein one end of the cylinder barrel 1 is provided with a rodless end cover 11, and the other end of the cylinder barrel 1 is provided with a rod side end cover 12; a piston 13 is arranged in the cylinder barrel 1, a piston rod 14 is arranged on the piston 13, a first buffer device 2 is arranged at one end, close to the piston 13, of the rodless end cover 11, the first buffer device 2 comprises a first buffer part 21, a first spring groove 22 is arranged at one end, close to the rodless port 11, of the first buffer part 21, and a first buffer spring 23 is arranged in the first spring groove 22; one end of the first buffer piece 21 close to the rodless end cover 11 extends outwards to form a first limiting block 24; a first guide groove 111 is formed in one end of the rodless end cover 11 close to the piston 13 and corresponding to the first buffer piece 21, and a first limiting groove 112 is formed in the position of the rodless end cover 11 corresponding to the first limiting block 24; the first cushion member 21 repeatedly moves in the first guide groove 111 and the first limit groove 112; a second buffer device 3 is arranged at one end, close to the piston 13, of the rod-side end cover 12, the second buffer device 3 comprises a second buffer member 31, a second spring groove 32 is arranged at one end, close to the rod-side end cover 12, of the second buffer member 31, and a second buffer spring 33 is arranged in the second spring groove 32; one end of the second buffer member 31 close to the rod-side end cover 12 extends outwards to form a second limiting block 34, a second guide groove 121 is formed at the position of the rod-side end cover 12 corresponding to the second buffer member 31, and a second limiting groove 122 is formed at the position of the rod-side end cover 12 corresponding to the second limiting block 34; the second buffer member moves repeatedly in the second guide groove 121 and the second limiting groove 122; the piston 13 repeatedly moves in the cylinder barrel 1, when the piston 13 moves towards the rodless end cover 11, the piston 13 contacts with the first buffer member 21 first, and the first buffer member 21 is driven by the piston 13 to be arranged in the first guide groove 111 and the first limit groove 112; the first spring 23 in the first buffer member 21 is also elastically deformed by moving towards the rodless end cover 11, so that the power generated by the movement of the piston 13 is buffered; the piston 13 moves towards the rod side end 12, the piston 13 contacts with the second buffer member 31 first, the second buffer member 31 is driven by the piston 13 to move towards the rod side end cover 12 in the second guide groove 121 and the second limiting groove 122, the second buffer spring 33 in the second buffer member 31 elastically deforms at the same time, power generated by the movement of the piston 13 is buffered, the vibration amplitude of the whole cylinder in work is reduced, the service life of the end cover is prolonged, and the fixed position of the cylinder is not easy to loosen.

A plurality of through holes 4 are respectively arranged on the outer sides of the first buffer member 21 and the second buffer member 31; the through holes 4 are formed in the first buffer member 21 and the second buffer member 31, so that air can rapidly circulate in the first buffer device 2 and the second buffer device 3, the phenomenon that the air cannot flow in the cylinder barrel 1 is avoided, and the first buffer device 2 and the second buffer device 3 cannot move along with the air.

One end of the piston 13 close to the first buffer device 2 is provided with a first rubber block 131; a second rubber block 132 is arranged at one end of the piston 13 close to the second buffer device 3; the impact force of the piston 13 when the piston collides with the first buffer device 2 and the second buffer device 3 is reduced, and the service lives of the first buffer member 21 and the second buffer member 31 are increased.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A cylinder with a built-in buffer device comprises a cylinder barrel, wherein one end of the cylinder barrel is provided with a rodless end cover, and the other end of the cylinder barrel is provided with a rod side end cover; be provided with the piston in the cylinder, be provided with piston rod on the piston, its characterized in that: a first buffer device is arranged at one end, close to the piston, of the rodless end cover, the first buffer device comprises a first buffer piece, a first spring groove is formed at one end, close to the rodless port, of the first buffer piece, and a first buffer spring is arranged in the first spring groove; one end of the first buffer piece close to the rodless end cover extends outwards to form a first limiting block position; a first guide groove is formed in one end, close to the piston direction, of the rodless end cover, and corresponds to the first buffer piece, and a first limiting groove is formed in the position, corresponding to the first limiting block, of the rodless end cover; the first buffer piece moves repeatedly in the first guide groove and the first limiting groove; a second buffer device is arranged at one end, close to the piston, of the rod side end cover, and comprises a second buffer piece, a second spring groove is formed at one end, close to the rod side end cover, of the second buffer piece, and a second buffer spring is arranged in the second spring groove; one end, close to the rod side end cover, of the second buffer piece extends outwards to form a second limiting block, a second guide groove is formed in the position, corresponding to the second buffer piece, of the rod side end cover, and a second limiting groove is formed in the position, corresponding to the second limiting block, of the rod side end cover; the second buffer piece moves repeatedly in the second guide groove and the second limiting groove.

2. The cylinder with built-in buffer device as claimed in claim 1, wherein: a plurality of through holes are respectively formed in the outer sides of the first buffer piece and the second buffer piece.

3. The cylinder with built-in buffer device as claimed in claim 1, wherein: one end of the piston, which is close to the first buffer device, is provided with a first rubber block; and a second rubber block is arranged at one end of the piston close to the second buffer device.