CN217713462U

CN217713462U - Piston for automobile shock absorber ware

Info

Publication number: CN217713462U
Application number: CN202123308305.3U
Authority: CN
Inventors: 韩佳伟; 孟向阳; 赵启亮; 童兆勇
Original assignee: Yangzhou Huifeng New Material Co ltd
Current assignee: Yangzhou Huifeng New Material Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-11-01
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a piston for automobile shock absorber ware, concretely relates to bumper shock absorber technical field, peg graft the piston rod on the piston pipe including a piston pipe and one end, be provided with the piston seat at the other end of piston rod, the piston rod is located the inside one end of piston pipe and is fixed with first piston the piston pipe bottom mounting has the backup pad, be connected with damping spring between first piston and the backup pad piston pipe one side is provided with the shock attenuation pipe of fixing in the backup pad, the inside cavity of having seted up of shock attenuation pipe is provided with the second piston that goes up and down in the cavity inside, the inside rubidium magnet that inlays of second piston, the inside electro-magnet that is equipped with in shock attenuation pipe top. The utility model discloses make the reciprocal range of piston equipment adjust, can adjust according to the range of road surface vibrations for under the piston equipment needn't all be in the reciprocating motion state by a wide margin constantly, the effectual life who prolongs the piston has improved the practicality.

Description

Piston for automobile shock absorber ware

Technical Field

The utility model relates to a bumper shock absorber technical field, more specifically say, the utility model relates to a piston for automobile shock absorber ware.

Background

The shock absorber is mainly used for inhibiting the shock when the spring absorbs the shock and rebounds and the impact from the road surface. When the road surface is uneven, although the shock-absorbing spring can filter the vibration of the road surface, the spring can still reciprocate, and the shock absorber is used for inhibiting the spring from jumping. However, in the working process of the existing shock absorber, the reciprocating amplitude of the shock absorber is consistent and cannot be adjusted, and the shock absorber cannot be adjusted according to the amplitude of road vibration, so that the shock absorber can also reciprocate to a large extent even when a vehicle passes through a small slope, and the service life of the shock absorber is influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a piston for an automobile shock absorber.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a piston for automobile shock absorber ware, includes a piston pipe and a piston rod of one end grafting on the piston pipe, is provided with the piston seat at the other end of piston rod, and the piston rod is located the inside one end of piston pipe and is fixed with first piston the piston pipe bottom mounting has the backup pad, be connected with damping spring between first piston and the backup pad piston pipe one side is provided with the shock attenuation pipe of fixing in the backup pad, the inside cavity of having seted up of shock attenuation pipe is provided with the second piston that goes up and down in the cavity, the inside rubidium magnet that inlays of second piston, the inside electro-magnet that is equipped with in shock attenuation pipe top.

In a preferred embodiment, an air pipe is connected between the bottom end of the shock absorption pipe and the bottom end of the piston pipe, and the inner cavity of the shock absorption pipe is communicated with the area below the piston in the piston pipe through the air pipe.

In a preferred embodiment, the top of the hollow cavity in the shock tube is provided with an air pressure compensation tube extending to the outside of the shock tube.

In a preferred embodiment, the electromagnet is located directly above the rubidium magnet, and the direction of the magnetic field when the electromagnet is energized is opposite to the direction of the magnetic field of the rubidium magnet.

In a preferred embodiment, a limiting pipe is further fixed on the piston seat, a lifting limiting rod is inserted into the limiting pipe, and the bottom end of the limiting rod is fixed on the surface of the supporting plate.

The utility model discloses a technological effect and advantage:

this practicality makes the reciprocal range of piston equipment adjust, can adjust according to the range of road surface vibrations for under the piston equipment needn't all be in reciprocating motion state by a wide margin constantly, the effectual life who prolongs the piston has improved the practicality.

Drawings

Fig. 1 is a schematic diagram of the internal structure of the present invention.

Fig. 2 is a schematic view of the piston rod of the present invention when lifting.

Fig. 3 is a schematic diagram of the external structure of the present invention.

The reference signs are: the device comprises a piston tube 1, a piston rod 2, a piston seat 3, a first piston 4, a support plate 5, a damping spring 6, a damping tube 7, a rubidium magnet 8, an electromagnet 9, an air tube 10, an air pressure compensating tube 11, a limiting tube 12, a limiting rod 13, a cavity 14 and a second piston 15.

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.

The piston for the automobile shock absorber shown in fig. 1-3 comprises a piston tube 1 and a piston rod 2 with one end inserted into the piston tube 1, wherein the other end of the piston rod 2 is provided with a piston seat 3, one end of the piston rod 2 positioned in the piston tube 1 is fixed with a first piston 4, and the bottom end of the piston tube 1 is fixed with a support plate 5.

Further, the piston device is connected with the automobile parts through the piston seat 3 and the supporting plate 5 during installation, and when the piston rod 2 extends and retracts in the piston tube 1, the damping work of the automobile is completed.

On the basis, a damping spring 6 is connected between the first piston 4 and the supporting plate 5, a damping tube 7 fixed on the supporting plate 5 is arranged on one side of the piston tube 1, a cavity 14 is formed in the damping tube 7, a lifting second piston 15 is arranged in the cavity 14, a rubidium magnet 8 is embedded in the second piston 15, and an electromagnet 9 is embedded in the top end of the damping tube 7.

The shock absorption tube 7 and the second piston 15 inside the shock absorption tube are used for assisting the work of the piston tube 1 and sharing the work load of the piston tube 1 and the piston rod 2 so as to prolong the service life of the piston device.

Furthermore, an air pipe 10 is connected between the bottom end of the shock absorption pipe 7 and the bottom end of the piston pipe 1, and an inner cavity 14 of the shock absorption pipe 7 is communicated with an area below the piston in the piston pipe 1 through the air pipe 10.

That is, when the piston rod 2 is lifted in the piston tube 1 and drives the first piston 4 to lift, the first piston 4 will extrude the damping spring 6 to deform, and the first piston 4 will extrude the air below, so that the air enters the damping tube 7 through the air tube 10.

The top of the cavity 14 in the shock tube 7 is provided with a gas pressure compensating tube 11 extending outside the shock tube 7.

On the basis of the above, when the air at the bottom of the piston tube 1 is squeezed from the air tube 10 to the inside of the shock absorbing tube 7, the air pressure in the area of the cavity 14 in the shock absorbing tube 7 below the second piston 15 will be raised, the second piston 15 will be driven to move upwards in the cavity 14, and the air at the top of the cavity 14 will be discharged from the air pressure compensating tube 11 to the outside of the shock absorbing tube 7.

The electromagnet 9 is positioned right above the rubidium magnet 8, and the direction of the magnetic field when the electromagnet 9 is electrified is opposite to the direction of the magnetic field of the rubidium magnet 8.

Furthermore, because the second piston 15 has the rubidium magnet 8, when the electromagnet 9 is controlled to be energized to generate a magnetic field opposite to the magnetic field, a repulsive force is generated on the second piston 15, that is, when the air conveyed from the piston tube 1 pushes the second piston 15, the repulsive force between the electromagnet 9 and the rubidium magnet 8 needs to be offset.

On the basis, when the repulsive force between the electromagnet 9 and the rubidium magnet 8 is large, the air transmitted from the piston tube 1 cannot push the second piston 15 to move upwards for a sufficient distance, and the air is accumulated at the bottom of the cavity 14 and below the first piston 4, so that the lifting amplitude of the first piston 4 is limited.

Further, when the vehicle passes through a smaller slope, the control can be performed, so that the lifting amplitude of the first piston 4 is reduced, the reciprocating motion amplitude of the piston device is smaller, when the slope that the vehicle passes through is larger, the magnetic field intensity flowing through the electromagnet 9 is reduced, the repulsive force between the electromagnet 9 and the rubidium magnet 8 is smaller or even eliminated, when the second piston 15 is extruded by air in the piston tube 1, the lifting with enough amplitude can be performed, so that the first piston 4 also has the lifting with enough amplitude, and the whole piston device can effectively perform the reciprocating motion to perform shock absorption.

On the basis, the utility model makes the reciprocating amplitude of the piston equipment adjustable, and can adjust according to the amplitude of road surface vibration, so that the piston equipment is not necessary to be in the reciprocating motion state of a large amplitude all the time, the service life of the piston is effectively prolonged, and the practicability is improved.

A limiting pipe 12 is further fixed on the piston seat 3, a lifting limiting rod 13 is inserted in the limiting pipe 12, and the bottom end of the limiting rod 13 is fixed on the surface of the supporting plate 5.

In the process of lifting the piston rod 2, the piston seat 3 can be lifted together, and in the process, the limiting pipe 12 is lifted outside the limiting rod 13 for limiting so as to improve the stability.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," "connecting," and "connecting" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be directly connected, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a piston for automobile shock absorber ware, includes piston tube (1) and one end piston rod (2) of pegging graft on piston tube (1), is provided with piston seat (3) at the other end of piston rod (2), and piston rod (2) are located the inside one end of piston tube (1) and are fixed with first piston (4), its characterized in that: piston pipe (1) bottom mounting has backup pad (5), be connected with damping spring (6) between first piston (4) and backup pad (5) piston pipe (1) one side is provided with shock tube (7) of fixing in backup pad (5), cavity (14) have been seted up to shock tube (7) inside, at the inside second piston (15) that are provided with the lift of cavity (14), the inside rubidium magnet (8) that is equipped with of second piston (15) is inlayed, the inside electro-magnet (9) that is equipped with in shock tube (7) top is inlayed.

2. The piston for the shock absorber of the automobile as set forth in claim 1, wherein: an air pipe (10) is connected between the bottom end of the damping pipe (7) and the bottom end of the piston pipe (1), and a cavity (14) in the damping pipe (7) is communicated with an area below the piston in the piston pipe (1) through the air pipe (10).

3. The piston for the shock absorber of the automobile as set forth in claim 1, wherein: and an air pressure compensating pipe (11) extending to the outside of the shock absorbing pipe (7) is arranged at the top of the cavity (14) in the shock absorbing pipe (7).

4. The piston for the shock absorber of the automobile as set forth in claim 1, wherein: the electromagnet (9) is positioned right above the rubidium magnet (8), and the direction of a magnetic field when the electromagnet (9) is electrified is opposite to the direction of the magnetic field of the rubidium magnet (8).

5. The piston for the shock absorber of the automobile as set forth in claim 1, wherein: the piston seat (3) is further fixed with a limiting pipe (12), a lifting limiting rod (13) is inserted in the limiting pipe (12), and the bottom end of the limiting rod (13) is fixed on the surface of the supporting plate (5).