CN213270820U

CN213270820U - Controllable air spring with conveniently-connected piston rod end

Info

Publication number: CN213270820U
Application number: CN202022156924.4U
Authority: CN
Inventors: 丁治宏; 张小伟; 王洪涛
Original assignee: Changzhou Lingran Precision Hardware Co ltd
Current assignee: Changzhou Lingran Precision Hardware Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-05-25
Anticipated expiration: 2030-09-27

Abstract

The utility model discloses a convenient controllable type air spring is connected to piston rod end belongs to shock attenuation equipment technical field, including the pneumatic cylinder, the inside of pneumatic cylinder is provided with the movable rod, the one end fixedly connected with piston of movable rod, the outside swing joint that the other end of movable rod extended to the pneumatic cylinder has the connecting piece, the surface of piston and the inside wall swing joint of pneumatic cylinder, the bleeder vent has been seted up to the side of piston, the inside fixedly connected with motor of piston, the shrink groove has been seted up to the inside of piston, the inside swing joint of shrink groove has the rack, the standing groove has been seted up to the inside of connecting piece, the bottom fixedly connected with locking spring of standing groove, the bottom fixedly connected with locking piece of standing groove is kept away from to locking spring's one end. The utility model discloses, the device simple structure is reasonable, can solve the not enough of prior art well, and the braking precision of effectual improvement piston stroke is favorable to improving dismouting efficiency.

Description

Controllable air spring with conveniently-connected piston rod end

Technical Field

The utility model relates to a damping device technical field specifically is convenient controllable type air spring is connected to the tailpiece of the piston rod.

Background

The gas spring is an industrial accessory which can play the roles of supporting, buffering, braking, height adjustment, angle adjustment and the like, and comprises the following parts: the principle is that the inert gas or the oil-gas mixture is filled into the closed pressure cylinder, so that the pressure in the cavity is several times or dozens of times higher than the atmospheric pressure, and the movement of the piston rod is realized by utilizing the pressure difference generated by the fact that the cross section area of the piston rod is smaller than the cross section area of the piston, and the gas spring has very remarkable advantages compared with a common spring due to fundamental difference in principle: the speed is relatively slow, the dynamic force change is not large (generally within 1: 1.2), and the control is easy.

The air spring in the prior art has some defects, such as low braking efficiency, low precision in controlling the stroke of the piston, and complex installation and operation, and greatly influences the dismounting efficiency, so that the prior art needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a convenient controllable type air spring is connected to the piston rod end to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the controllable air spring with the conveniently connected piston rod end comprises a pneumatic cylinder, a movable rod is arranged inside the pneumatic cylinder, a piston is fixedly connected to one end of the movable rod, a connecting piece is movably connected to the outer side of the other end of the movable rod, which extends to the pneumatic cylinder, the surface of the piston is movably connected with the inner side wall of the pneumatic cylinder, an air hole is formed in the side surface of the piston, a motor is fixedly connected inside the piston, a contraction groove is formed inside the piston, and a rack is movably connected inside the contraction groove;

the connecting piece is characterized in that a placing groove is formed in the connecting piece, a locking spring is fixedly connected to the bottom of the placing groove, a locking block is fixedly connected to the bottom of the placing groove and is far away from one end of the locking spring, a pull rod is movably connected to the inside of the connecting piece, and one end of the pull rod extends to a pull buckle fixedly connected to the outer side of the connecting piece.

The output fixedly connected with pivot of motor, the surperficial swing joint of pivot has the gear, the surface and the rack toothing of gear are connected.

The outer surface of pivot and the internal surface of gear have all seted up the keyway, the inside swing joint of keyway has the installation key.

The right inner side wall of the pneumatic cylinder is movably connected with a sealing guide sleeve, and the inner surface of the sealing guide sleeve is movably connected with the surface of the movable rod.

The surface of the movable rod and the inside of the connecting piece are provided with locking grooves, and the inside of each locking groove is movably connected with the outer surface of the locking block.

The right side wall of the pneumatic cylinder is movably connected with a shaft sleeve, an internal thread is formed in the inner side wall of the shaft sleeve, and the inside of the shaft sleeve is movably connected with the surface of the movable rod.

The surface of pneumatic cylinder just is close to right side edge and has seted up the external screw thread, external screw thread and interior screw-thread fit connection.

The connecting rod is fixedly connected between the locking blocks, the surface of the connecting rod is fixedly connected with the other end of the pull rod, and a sliding groove is formed in the side face of the placing groove.

The surface of the connecting piece is provided with a plurality of mounting holes.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: 1. the device simple structure is reasonable, can solve the not enough of prior art well, and the effectual braking precision that improves the piston stroke is favorable to improving dismouting efficiency.

2. Through the setting the dismouting efficiency of the effectual improvement part of buckle and pull rod.

3. The sealing performance of the pneumatic cylinder can be effectively improved by arranging the sealing guide sleeve, and the stroke error of the piston is favorably reduced.

4. Through setting up the dismouting efficiency that locking piece and locked groove can effectual improvement connecting piece, be favorable to simplifying the dismouting step.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a perspective view of the external structure of a controllable gas spring with a conveniently connected piston rod end of the utility model;

FIG. 2 is a front view of the internal structure of the controllable gas spring with the conveniently connected piston rod end of the present invention;

FIG. 3 is a front view of the external structure of the controllable gas spring with the conveniently connected piston rod end of the present invention;

fig. 4 is a schematic structural view of a placing groove of a controllable gas spring with a conveniently connected piston rod end of the utility model;

fig. 5 is an enlarged view of a in fig. 2 according to the present invention.

In the figure: 1. a pneumatic cylinder; 2. a movable rod; 3. sealing the guide sleeve; 4. a shaft sleeve; 5. an external thread; 6. an internal thread; 7. a piston; 8. air holes are formed; 9. a connecting member; 10. pulling the button; 11. a pull rod; 12. a placement groove; 13. a locking spring; 14. a connecting rod; 15. locking the groove; 16. a locking block; 17. mounting holes; 18. a chute; 19. a contraction groove; 20. a rack; 21. a gear; 22. installing a key; 23. a keyway; 24. a rotating shaft; 25. an electric motor.

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. 1-5, the present invention provides a technical solution: the pneumatic cylinder comprises a pneumatic cylinder 1, a movable rod 2 is arranged inside the pneumatic cylinder 1, one end of the movable rod 2 is fixedly connected with a piston 7, the other end of the movable rod 2 extends to the outer side of the pneumatic cylinder 1 and is movably connected with a connecting piece 9, the surface of the piston 7 is movably connected with the inner side wall of the pneumatic cylinder 1, the side face of the piston 7 is provided with an air hole 8, the inside of the piston 7 is fixedly connected with a motor 25, the inside of the piston 7 is provided with a contraction groove 19, the inside of the contraction groove 19 is movably connected with a rack 20, the output end of the motor 25 is fixedly connected with a rotating shaft 24, the surface of the rotating shaft 24 is movably connected with a gear 21, the effect of conveniently transmitting power is achieved, the surface;

standing groove 12 has been seted up to the inside of connecting piece 9, the bottom fixedly connected with locking spring 13 of standing groove 12, the bottom fixedly connected with locking piece 16 of standing groove 12 is kept away from to locking spring 13's one end, the inside swing joint of connecting piece 9 has pull rod 11, the one end of pull rod 11 extends to the outside fixedly connected with of connecting piece 9 and draws knot 10, the locked groove 15 has been seted up on the surface of movable rod 2 and the inside that is located connecting piece 9, the inside of locked groove 15 and the surface swing joint of locking piece 16, play the effect of conveniently dismantling the installation.

The outer surface of the rotating shaft 24 and the inner surface of the gear 21 are both provided with a key groove 23 to play a role of positioning connection, the inner side wall of the key groove 23 is movably connected with an installation key 22, the right inner side wall of the pneumatic cylinder 1 is movably connected with a sealing guide sleeve 3 to play a role of improving sealing performance, the inner surface of the sealing guide sleeve 3 is movably connected with the surface of the movable rod 2, the right side wall of the pneumatic cylinder 1 is movably connected with a shaft sleeve 4, the inner side wall of the shaft sleeve 4 is provided with an internal thread 6, the inner part of the shaft sleeve 4 is movably connected with the surface of the movable rod 2, the outer surface of the pneumatic cylinder 1 is provided with an external thread 5 close to the right side edge, the external thread 5 is matched and connected with the internal thread 6, a connecting rod 14 is fixedly connected between the locking blocks 16 to play a role of fixed connection, the surface of the connecting rod, the number of the mounting holes 17 is plural.

The utility model discloses a theory of operation: during the use, connect other accessories through erection joint 9, when the movable rod 2 received pressure, movable rod 2 drove piston 7 and contracts this moment, and starter motor 25 drives gear 21 and then drives rack 20 and reciprocate simultaneously to seal bleeder vent 8, piston 7 both sides pressure balance piston is static this moment, and when taking off pressure and opening bleeder vent 8, the both sides of piston 7 can remove according to the difference of atmospheric pressure difference, and it is static until piston 7 both sides pressure equals.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Convenient controllable type air spring is connected to piston rod end, including pneumatic cylinder (1), its characterized in that: a movable rod (2) is arranged inside the pneumatic cylinder (1), one end of the movable rod (2) is fixedly connected with a piston (7), the other end of the movable rod (2) extends to the outer side of the pneumatic cylinder (1) and is movably connected with a connecting piece (9), the surface of the piston (7) is movably connected with the inner side wall of the pneumatic cylinder (1), the side surface of the piston (7) is provided with an air hole (8), the inside of the piston (7) is fixedly connected with a motor (25), the inside of the piston (7) is provided with a contraction groove (19), and the inside of the contraction groove (19) is movably connected with a rack (20);

the novel connecting piece is characterized in that a placing groove (12) is formed in the connecting piece (9), a locking spring (13) is fixedly connected to the bottom of the placing groove (12), a locking block (16) is fixedly connected to the bottom of the placing groove (12) and is far away from one end of the locking spring (13), a pull rod (11) is movably connected to the inside of the connecting piece (9), and one end of the pull rod (11) extends to a pull buckle (10) fixedly connected to the outer side of the connecting piece (9).

2. A controllable gas spring with a conveniently connected piston rod end as claimed in claim 1, wherein: the output end of the motor (25) is fixedly connected with a rotating shaft (24), the surface of the rotating shaft (24) is movably connected with a gear (21), and the surface of the gear (21) is meshed with the rack (20) and is connected with the gear.

3. A controllable gas spring with a conveniently connected piston rod end as claimed in claim 2, wherein: the outer surface of pivot (24) and the internal surface of gear (21) have all seted up keyway (23), the inside swing joint of keyway (23) has mounting key (22).

4. A controllable gas spring with a conveniently connected piston rod end as claimed in claim 1, wherein: the right inner side wall of the pneumatic cylinder (1) is movably connected with a sealing guide sleeve (3), and the inner surface of the sealing guide sleeve (3) is movably connected with the surface of the movable rod (2).

5. A controllable gas spring with a conveniently connected piston rod end as claimed in claim 1, wherein: the surface of the movable rod (2) is positioned in the connecting piece (9), and a locking groove (15) is formed in the connecting piece, and the inside of the locking groove (15) is movably connected with the outer surface of the locking block (16).

6. A controllable gas spring with a conveniently connected piston rod end as claimed in claim 1, wherein: the right side wall of pneumatic cylinder (1) swing joint has axle sleeve (4), internal thread (6) have been seted up to the inside wall of axle sleeve (4), the inside and the surperficial swing joint of movable rod (2) of axle sleeve (4).

7. A controllable gas spring with a conveniently connected piston rod end as claimed in claim 1, wherein: the surface of pneumatic cylinder (1) just is close to right side edge and has seted up external screw thread (5), external screw thread (5) are connected with internal thread (6) cooperation.

8. A controllable gas spring with a conveniently connected piston rod end as claimed in claim 1, wherein: a connecting rod (14) is fixedly connected between the locking blocks (16), the surface of the connecting rod (14) is fixedly connected with the other end of the pull rod (11), and a sliding groove (18) is formed in the side surface of the placing groove (12).

9. A controllable gas spring with a conveniently connected piston rod end as claimed in claim 1, wherein: the surface of the connecting piece (9) is provided with a plurality of mounting holes (17), and the number of the mounting holes (17) is multiple.