CN214661223U

CN214661223U - Back auto-lock prevents cylinder that falls

Info

Publication number: CN214661223U
Application number: CN202120880358.3U
Authority: CN
Inventors: 黄德福
Original assignee: Wenzhou Fangda Pneumatic Co ltd
Current assignee: Wenzhou Fangda Pneumatic Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-11-09
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses a cylinder is prevented falling by back auto-lock, including protecgulum, cylinder and piston, first O shape circle and hou gai are installed respectively to the both ends of cylinder, the inside of protecgulum runs through the guide pin bushing and installs the piston rod, install the piston in the inboard cylinder of back lid, the internally mounted of piston has second O shape circle, the apron is all installed with the bottom at the top of back lid, the apron is installed through pole portion sealing washer and is extended to the self-locking round pin in the back lid, and is equipped with locking spring between self-locking round pin and the apron, the internally mounted of back lid has the buffering spiral shell spare that corresponds with the piston. The utility model discloses a each other between self-locking round pin and the locking spring between back lid and the apron is the combination operation, makes the cylinder realize the effect of back auto-lock, through the buffering effect of spring self, can effectually avoid the condition that the self-locking round pin can't fall back fast during the operation, has reached good effect of preventing falling, the better short slab of having solved the cylinder during the operation.

Description

Back auto-lock prevents cylinder that falls

Technical Field

The utility model relates to an entrance guard's technical field specifically is a cylinder is prevented falling by back auto-lock.

Background

A cylindrical metal member for guiding the piston to perform linear reciprocating motion 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 compressor cylinder to increase pressure. The housing of a turbine, a rotary piston engine or the like is often also referred to as a "cylinder". The application field of the cylinder is as follows: printing (tension control), semiconductors (spot welding machines, chip grinding), automation control, robotics, etc.

The defects of the conventional test air cylinder are as follows:

1. the existing cylinder is easy to cause the situation of cylinder failure and fall back due to line or equipment failure during operation, and even brings great hidden danger to the life safety of workers, thereby reducing the practical effect of the cylinder and reducing the application range of the cylinder.

2. The sealing performance of the existing cylinder has certain leakage, so that the operation performance of the cylinder is reduced, and the assembly and disassembly operation of workers are inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cylinder is prevented falling by back auto-lock 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 a cylinder that falls is prevented in back auto-lock, includes protecgulum, cylinder and piston, first O shape circle and hou gai are installed respectively to the both ends of cylinder, the inside of protecgulum runs through the guide pin bushing and installs the piston rod, install the piston in the inboard cylinder of back lid, the internally mounted of piston has second O shape circle, the apron is all installed to the top and the bottom of back lid, the apron installs the self-locking round pin that extends to in the back lid through pole part sealing member, and is equipped with locking spring between self-locking round pin and the apron, the internally mounted of back lid has the buffering spiral shell spare that corresponds with the piston, and installs the steel casing sealing washer between buffering spiral shell spare and the back lid, the shrouding is installed in the outside of back lid, the outside fixed mounting of shrouding has single ear of hanging.

Preferably, the sealing plate and the rear cover and the front cover and the first O-shaped ring are installed in a butt joint mode through pull rods, and spring washers and nuts are arranged on the pull rods.

Preferably, a piston sealing ring and a guide belt are respectively arranged between the piston and the cylinder barrel.

Preferably, a rod sealing ring is arranged between the guide sleeve and the piston rod.

Preferably, a first O-shaped ring is arranged between the front cover and the cylinder barrel.

Preferably, both sides of the front cover are fixedly provided with fastening blocks through hexagon socket head cap screws.

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

1. through each other between the self-locking round pin of back lid between through the apron and the locking spring each other make up the operation, make the cylinder realize the effect of back auto-lock, through the buffering effect of spring self, can effectually avoid the condition that the self-locking round pin can't fall back fast during the operation, good effect of preventing falling has been reached, the security of staff during the operation has been guaranteed, personal safety has been guaranteed to the at utmost, simultaneously also can be better the solution cylinder short slab part during the operation, the cylinder working property has been improved, holistic application scope has been enlarged.

2. Through the effectual holistic leakproofness of cylinder and fastening nature that has increased of box hat sealing washer, avoid or reduce the condition that the cylinder appears leaking under the high strength operation condition, guaranteed holistic operation dynamics and operation quality, it is fixed that the ear makes the staff of being convenient for more of cylinder to install it to singly hang, has improved the convenience of cylinder during loading, also provides good condition for the maintenance operation in later stage simultaneously, has improved the practical function of cylinder.

Drawings

FIG. 1 is a front internal structure view of the present invention;

FIG. 2 is a top view of the internal structure of the present invention;

fig. 3 is a side view of the present invention.

In the figure: 1. a piston rod; 2. a rod part sealing ring; 3. a front cover; 4. a guide sleeve; 5. a first O-ring; 6. a cylinder barrel; 7. a piston; 8. a piston seal ring; 9. a guide belt; 10. a second O-ring; 11. a steel shell seal ring; 12. a buffer screw; 13. a rear cover; 14. a spring washer; 15. a nut; 16. a pull rod; 17. single suspension lug; 18. a socket head cap screw; 1801. a fastening block; 19. a stem seal; 20. a cover plate; 21. a locking spring; 22. a self-locking pin; 23. and (7) closing the plate.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a rear self-locking anti-falling cylinder comprises a front cover 3, a cylinder barrel 6 and a piston 7, wherein two ends of the cylinder barrel 6 are respectively provided with a first O-shaped ring 5 and a rear cover 13, the top and the bottom of the rear cover 13 are both provided with a cover plate 20, the cover plate 20 is provided with a self-locking pin 22 extending into the rear cover 13 through a rod part sealing element 19, and a locking spring 21 is arranged between the self-locking pin 22 and the cover plate 20, and the rear cover 13 realizes the rear self-locking effect through the mutual combination operation between the self-locking pin 22 and the locking spring 21 between the cover plates 20, and through the self-buffering effect of the spring, the situation that the self-locking pin 22 cannot fall back quickly during operation can be effectively avoided, good anti-falling effect is achieved, the short plate part of the cylinder during operation can be better met, the operation performance of the cylinder is improved, the whole application range is enlarged, and the fastening blocks 1801 are fixedly arranged on the two sides of the front cover 3 through the inner hexagonal socket head cap screws 18;

specifically, a buffer screw 12 corresponding to the piston 7 is arranged in the rear cover 13, and a steel shell sealing ring 11 is arranged between the buffer screw 12 and the rear cover 13, the steel shell sealing ring 11 effectively increases the sealing property and the fastening property of the whole cylinder, avoids or reduces the leakage of the cylinder under the high-strength operation condition, the whole operation force and the operation quality are ensured, the sealing plate 23 is arranged on the outer side of the rear cover 13, the sealing plate 23 and the rear cover 13 as well as the front cover 3 and the first O-shaped ring 5 are butted and installed through the pull rod 16, and the pull rod 16 is provided with a spring washer 14 and a nut 15, the outer side of the closing plate 23 is fixedly provided with a single suspension lug 17, the single suspension lug 17 enables the air cylinder to be more convenient for workers to mount and fix the air cylinder, the convenience of the air cylinder during loading is improved, meanwhile, good conditions are provided for later maintenance operation, and the practical effect of the cylinder is improved;

specifically, a piston rod 1 is installed inside the front cover 3 in a penetrating mode through a guide sleeve 4, a rod sealing ring 2 is installed between the guide sleeve 4 and the piston rod 1, a piston 7 is installed inside a cylinder 6 on the inner side of the rear cover 13, a piston sealing ring 8 and a guide belt 9 are installed between the piston 7 and the cylinder 6 respectively, and a second O-shaped ring 10 is installed inside the piston 7.

The working principle is as follows: during the use, install the cylinder through the single ear 17 that hangs on the shrouding 23 and fix to suitable operation equipment on, then with wire and corresponding mounting structure installation on the cylinder fixed, the cylinder is through subassembly such as inside piston rod 1, piston 7 and buffer screw 12 and is moved, when the cylinder operation finishes or needs stop to it, then through the cooperation realization to buffer screw 12's locking operation between apron 20, locking spring 21 and the self-locking pin 22, avoid it to produce the condition of falling back.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a cylinder is prevented falling in back auto-lock, includes protecgulum (3), cylinder (6) and piston (7), its characterized in that: the piston rod type damping device is characterized in that a first O-shaped ring (5) and a rear cover (13) are respectively installed at two ends of the cylinder barrel (6), a piston rod (1) is installed in the front cover (3) in a penetrating mode through a guide sleeve (4), a piston (7) is installed in the cylinder barrel (6) on the inner side of the rear cover (13), a second O-shaped ring (10) is installed in the piston (7), cover plates (20) are installed at the top and the bottom of the rear cover (13), a self-locking pin (22) extending into the rear cover (13) is installed on the cover plates (20) through a rod part sealing part (19), a locking spring (21) is arranged between the self-locking pin (22) and the cover plates (20), a buffering screw part (12) corresponding to the piston (7) is installed in the rear cover (13), a steel shell sealing ring (11) is installed between the buffering screw part (12) and the rear cover (13), and a sealing plate (23) is installed on the outer side of the rear cover (13), and a single suspension lug (17) is fixedly arranged on the outer side of the sealing plate (23).

2. The rear self-locking anti-falling cylinder according to claim 1, characterized in that: the sealing plate (23) and the rear cover (13) and the front cover (3) and the first O-shaped ring (5) are installed in a butt joint mode through a pull rod (16), and a spring washer (14) and a nut (15) are arranged on the pull rod (16).

3. The rear self-locking anti-falling cylinder according to claim 1, characterized in that: and a piston sealing ring (8) and a guide belt (9) are respectively arranged between the piston (7) and the cylinder barrel (6).

4. The rear self-locking anti-falling cylinder according to claim 1, characterized in that: and a rod part sealing ring (2) is arranged between the guide sleeve (4) and the piston rod (1).

5. The rear self-locking anti-falling cylinder according to claim 1, characterized in that: a first O-shaped ring (5) is arranged between the front cover (3) and the cylinder barrel (6).

6. The rear self-locking anti-falling cylinder according to claim 1, characterized in that: and fastening blocks (1801) are fixedly mounted on two sides of the front cover (3) through inner hexagonal socket head cap screws (18).