CN218817321U

CN218817321U - Cylinder structure

Info

Publication number: CN218817321U
Application number: CN202222264028.9U
Authority: CN
Inventors: 雷金召
Original assignee: Shangde Automation Co ltd
Current assignee: Shangde Automation Co ltd
Priority date: 2022-08-27
Filing date: 2022-08-27
Publication date: 2023-04-07
Anticipated expiration: 2032-08-27

Abstract

The utility model relates to a cylinder, in particular to cylinder structure has solved the life problem of cylinder. The cylinder comprises a cylinder body, the cylinder body includes protecgulum, back lid, cylinder body and piston assembly, protecgulum and back lid are fixed assembly respectively at the axial both ends of cylinder body, piston assembly includes piston seat, piston rod, locating lever and spring, piston rod one end is passed the protecgulum, and the piston rod other end and locating lever coaxial line fixed assembly, the piston seat is located in the cylinder body and is assembled with the piston rod linkage, the spring cup joints on the locating lever, the spring both ends are butt piston seat and back lid respectively, all be equipped with the mounting groove that supplies the spring installation on piston seat and the back lid, be equipped with on the piston seat with cylinder body inner wall between sealed seal groove one, seal groove two and seal groove three. The design is inseparable, and the dismouting is maintained conveniently, and the leakproofness is ensured to many places seal structure, strengthens local structural strength, improves life greatly, reduces use cost.

Description

Cylinder structure

Technical Field

The utility model relates to a cylinder, in particular to cylinder structure.

Background

The cylinder refers to a cylindrical metal work that guides the piston to reciprocate linearly in the cylinder. The air converts thermal energy to mechanical energy by expansion in a cylinder, and the gas is compressed by a piston in a compressor cylinder to increase pressure. Particularly, in some light processing fields, the cylinder is widely used as a lifting mechanism, but the structure is too simple, the cost is low, and the service life is short. After long-term use, the device is easy to fail and fail, and can only be replaced without maintenance.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a cylinder structure.

In order to realize the purpose, the utility model adopts the technical scheme that: the utility model provides an air cylinder structure, includes the cylinder body, the cylinder body includes protecgulum, back lid, cylinder body and piston assembly, protecgulum and back lid fixed mounting are at the axial both ends of cylinder body respectively, piston assembly includes piston seat, piston rod, locating lever and spring, the protecgulum is passed to piston rod one end, and the piston rod other end and locating lever coaxial line fixed mounting, the piston seat is located in the cylinder body and is assembled with the piston rod linkage, the spring cup joints on the locating lever, the spring both ends are butt piston seat and back lid respectively, all be equipped with the mounting groove that supplies the spring installation on piston seat and the back lid, be equipped with on the piston seat with cylinder body inner wall between sealed seal groove one, seal groove two and seal groove three, seal groove two groove depth is less than seal groove one or seal groove two, be equipped with the sealing washer in seal groove one, seal groove two and the seal groove three, be equipped with the back ear round pin on the back ear pin, be equipped with the trompil of intercommunication cylinder body again on the back ear pin.

The front cover and the cylinder body and the rear cover and the cylinder body are fixedly connected through threads.

The front cover is provided with a guide sleeve for the piston rod to pass through, the guide sleeve is in sleeve joint with the front cover, and the guide sleeve and the front cover are fixed through welding.

The rear ear pin and the rear cover are fixed through welding.

And a fourth sealing groove is formed between the front cover and the inner wall of the cylinder body, and a sealing ring is arranged in the fourth sealing groove.

The guide sleeve is in a convex shape along the radial projection, and the positioning rod is fixedly connected with the piston rod through threads.

The utility model has the advantages that: the utility model provides a cylinder structural design is inseparable, and the dismouting dimension is supported conveniently, and the leakproofness is ensured to many seal structure, strengthens local structural strength, improves life greatly, reduces use cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in fig. 1, a cylinder structure, including cylinder body 1, cylinder body 1 includes protecgulum 2, back lid 3, cylinder body 5 and piston assembly, protecgulum 2 and back lid 3 are fixed assembly respectively at the axial both ends of cylinder body 5, piston assembly includes piston seat 4, piston rod 6, locating lever 7 and spring 8, protecgulum 2 is passed to piston rod 6 one end, and the piston rod 6 other end and locating lever 7 coaxial line fixed assembly, piston seat 4 locates in the cylinder body 5 and links the assembly with piston rod 6, spring 8 cup joints on locating lever 7, the spring 8 both ends are butt piston seat 4 and back lid 3 respectively, all be equipped with the mounting groove 9 that supplies spring 8 to install on piston seat 4 and the back lid 3. Piston rod 6 and piston seat 4 linear movement to realize resetting fast through spring 8, the design has locating lever 7 to prevent spring 8 off normal.

The piston seat 4 is provided with a first sealing groove 10, a second sealing groove 11 and a third sealing groove 12 which are sealed with the inner wall of the cylinder body 5, the depth of the second sealing groove 11 is smaller than the first sealing groove 10 or the second sealing groove 11, sealing rings are arranged in the first sealing groove 10, the second sealing groove 11 and the third sealing groove 12, the rear cover 3 is provided with a rear lug pin 13, the rear lug pin 13 is provided with a hole 14 which is communicated with the cylinder body 5, and the hole 14 is used for ventilation. The structural design is compact, and the sealing effect of the sealing element and the structural sealing, namely labyrinth sealing and sealing ring sealing, is emphasized. It should be noted that the labyrinth seal achieves throttling and sealing effects by means of a medium through a narrow passage, so that the sealing performance of the piston seat 4 is greatly improved and the use effect is ensured.

The front cover 2 and the cylinder body 5 and the rear cover 3 and the cylinder body 5 are fixedly connected through threads, and the connection tightness and the sealing performance are ensured through matching with an assembly structure.

The front cover 2 is provided with a guide sleeve 15 for the piston rod 6 to pass through, the guide sleeve 15 is in sleeve fit with the front cover 2, and the guide sleeve 15 and the front cover 2 are fixed by welding. The design of the guide sleeve 15 strengthens the local structural strength, and also plays a role in guiding, thereby being beneficial to the high-strength use of the piston rod 6. The rear ear pin 13 and the rear cover 3 are fixed by welding, and the welding is firm and the sealing performance is good.

A fourth sealing groove 16 is formed between the front cover 2 and the inner wall of the cylinder body 5, and a sealing ring is arranged in the fourth sealing groove 16. The guide sleeve 15 is in a convex shape in the radial projection, the sealing performance is further enhanced on the basis of a concave-convex sleeved structure, the positioning rod 7 and the piston rod 6 are fixedly connected through threads, and the threads are connected to be beneficial to keeping stable connection in axial reciprocating motion.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description, and are not intended to indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and therefore, are not to be considered as limitations of the present invention, and the fundamental principles, main features, and advantages of the present invention have been shown and described above, as would be understood by those skilled in the art.

Claims

1. The utility model provides an air cylinder structure, includes the cylinder body, its characterized in that, the cylinder body includes protecgulum, back lid, cylinder body and piston assembly, protecgulum and back lid fixed mounting are at the axial both ends of cylinder body respectively, piston assembly includes piston seat, piston rod, locating lever and spring, the protecgulum is passed to piston rod one end, and the piston rod other end and locating lever coaxial line fixed mounting, the piston seat is located in the cylinder body and is assembled with the piston rod linkage, the spring cup joints on the locating lever, the spring both ends are butt piston seat and back lid respectively, all be equipped with the mounting groove that supplies the spring installation on piston seat and the back lid, be equipped with on the piston seat with cylinder body inner wall between sealed seal groove one, seal groove two and seal groove three, seal groove two groove depth is less than seal groove one or seal groove two, be equipped with the sealing washer in seal groove one, seal groove two and the seal groove three, be equipped with the back ear round pin on the back ear pin, be equipped with the trompil of intercommunication cylinder body again on the back ear pin.

2. The cylinder structure according to claim 1, wherein the front cover and the cylinder body and the rear cover and the cylinder body are fixed by screw connection.

3. The cylinder structure according to claim 2, wherein the front cover is provided with a guide sleeve for the piston rod to pass through, the guide sleeve and the front cover are in sleeve fit, and the guide sleeve and the front cover are fixed by welding.

4. A cylinder structure according to claim 3, wherein the rear lug and the rear cover are fixed by welding.

5. The cylinder structure according to claim 3, wherein a fourth sealing groove is formed between the front cover and the inner wall of the cylinder body, and a sealing ring is arranged in the fourth sealing groove.

6. A cylinder structure according to claim 3, wherein the guide sleeve is projected in a convex shape in a radial direction, and the positioning rod is fixed to the piston rod by screw thread.