CN212744830U

CN212744830U - External double-cylinder electric control shock absorber

Info

Publication number: CN212744830U
Application number: CN202021317880.2U
Authority: CN
Inventors: 陈博坤; 陈瑞钦; 熊新汉; 余李; 曾晶
Original assignee: Zhejiang Gold Intelligent Suspension Co Ltd
Current assignee: Zhejiang Gold Intelligent Suspension Co Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-03-19
Anticipated expiration: 2030-07-07

Abstract

The utility model relates to an external double-cylinder electric control shock absorber, which comprises an outer pipe, an inner pipe and a middle pipe which are coaxially arranged; the guider is arranged at the left end of the outer pipe; one end of the valve rod penetrates through the guider and extends into the inner pipe; a piston assembly disposed on one end of the valve stem extending into the inner tube; the bottom valve assembly is arranged at the right end of the outer pipe; the electromagnetic valve assembly is arranged on the outer pipe, a cavity between the inner pipe and the middle pipe is communicated with the working cavity of the inner pipe through a medium inlet on the inner pipe, a medium outlet is arranged on the middle pipe and is connected with an oil inlet of the electromagnetic valve, an oil outlet of the electromagnetic valve is communicated with the inner cavity of the outer pipe, and the inner cavity of the outer pipe is communicated through the bottom valve assembly. The utility model discloses a set up inner tube, intervalve and solenoid valve, utilize the solenoid valve to come the control through the oil mass between inner tube and the intervalve, realize the regulation and control to the damping value of bumper shock absorber, improve the demand that the bumper shock absorber adapts to complicated road surface, improve the shock attenuation effect.

Description

External double-cylinder electric control shock absorber

Technical Field

The utility model relates to a bumper shock absorber technical field, concretely relates to external binocular electric control shock absorber.

Background

The working principle of the shock absorber is that when the automobile frame (or automobile body) and the axle are vibrated and move relatively, a piston in the shock absorber moves up and down, and oil in an inner cavity of the shock absorber repeatedly flows into the other cavity from one cavity through different gaps. At the moment, the friction between the hole wall and oil and the internal friction between oil molecules form damping force on vibration, so that the vibration energy of the automobile is converted into oil heat energy, and then the oil heat energy is absorbed by the shock absorber and is emitted into the atmosphere.

The existing shock absorber oil bed is basically communicated with cylinder inner cavities at two sides of a piston through oil holes in a piston assembly, and the flow of the oil holes for passing a medium is a fixed value, so that the damping force of a shock absorber is difficult to adjust and control, and the best shock absorption effect is difficult to achieve under different road conditions.

SUMMERY OF THE UTILITY MODEL

To the not enough in the background art, the utility model provides an external binocular automatically controlled shock absorber.

The utility model adopts the technical proposal that: an external double-cylinder electric control shock absorber comprises an outer pipe, an inner pipe and an intermediate pipe which are coaxially arranged; the guider is arranged at the left end of the outer pipe; one end of the valve rod penetrates through the guider and extends into the inner pipe; a piston assembly disposed on one end of the valve stem extending into the inner tube; the bottom valve assembly is arranged at the right end of the outer pipe; the electromagnetic valve assembly is arranged on the outer pipe, a cavity between the inner pipe and the middle pipe is communicated with a working cavity of the inner pipe through a medium inlet on the inner pipe, a medium outlet is arranged on the middle pipe and is connected with an oil inlet of the electromagnetic valve, an oil outlet of the electromagnetic valve is communicated with an inner cavity of the outer pipe, and the inner cavity of the outer pipe is communicated through a bottom valve assembly.

Further, the piston assembly comprises a bottom gasket, a sealing seat, a pressing ring, a spring and a pressing nut which are sequentially sleeved on the valve rod, a compression oil way and a return oil way are arranged on the sealing seat, the outer ring of the bottom gasket is recessed leftwards to enable the bottom gasket and the left end face of the sealing seat to form an oil passing gap, the pressing ring is arranged in a counter bore of the valve seat and is pressed on the return oil way through a sealing gasket, and the spring is arranged between the pressing ring and the pressing nut.

Furthermore, the sealing device also comprises a sealing sleeve, and the sealing sleeve and the sealing seat are connected through mutually matched connecting steps.

Furthermore, the right side of the guider is provided with a sealing ring, the right end of the sealing ring is provided with a conical sleeve with the diameter gradually reduced, and the valve rod is provided with a conical section for clamping the conical sleeve.

Furthermore, a compensation valve hole and a compression valve hole are formed in the bottom valve assembly.

Furthermore, an O-shaped sealing ring is arranged between the compression ring and the sealing gasket.

The utility model has the advantages that: the utility model discloses a set up inner tube, intervalve and solenoid valve, utilize the solenoid valve to come the control through the oil mass between inner tube and the intervalve, realize the regulation and control to the damping value of bumper shock absorber, improve the demand that the bumper shock absorber adapts to complicated road surface, improve the shock attenuation effect.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages.

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

Drawings

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

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

In FIGS. 1-2: 1. an outer tube; 2. an inner tube; 3. an intermediate pipe; 4. a guide; 5. a valve stem; 6. a base valve assembly; 7. a solenoid valve assembly; 8. a bottom gasket; 9. a sealing seat; 10. a compression ring; 11. a spring; 12. a compression nut; 13. compressing the oil way; 14. a return oil duct; 15. an oil passing gap; 16. a counter bore; 17. sealing sleeves; 18. connecting steps; 19. a seal ring; 20. a conical sleeve; 21. a tapered section; 22. a compensation valve bore; 23. compressing the valve bore; 24. an O-shaped sealing ring; 25. a piston assembly; 26. sealing gaskets; 27. a cavity; 28. a media inlet; 29. a working chamber; 30. a media outlet; 31. an oil inlet; 32. and an oil outlet.

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 efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

The utility model provides an external binocular automatically controlled shock absorber.

In the embodiment, referring to fig. 1 and 2, the external dual-tube electronically controlled shock absorber comprises an outer tube 1, an inner tube 2 and an intermediate tube 3 which are coaxially arranged; a guide 4 provided at the left end of the outer tube; a valve rod 5 with one end extending into the inner pipe through the guider; a piston assembly 25 disposed at one end of the valve stem extending into the inner tube; a bottom valve assembly 6 arranged at the right end of the outer pipe; the electromagnetic valve assembly 7 is arranged on the outer pipe, a cavity 27 between the inner pipe 2 and the middle pipe 3 is communicated with a working cavity 29 of the inner pipe through a medium inlet 28 on the inner pipe, a medium outlet 30 is arranged on the middle pipe, the medium outlet 30 is connected with an oil inlet 31 of the electromagnetic valve, an oil outlet 32 of the electromagnetic valve is communicated with an inner cavity of the outer pipe, and the inner cavity of the outer pipe is communicated through the bottom valve assembly 6.

Among the above-mentioned technical scheme, through setting up inner tube, intermediate tube and solenoid valve, utilize the solenoid valve to control the oil mass through between inner tube and the intermediate tube, realize the regulation control to the damping value of bumper shock absorber, improve the demand that the bumper shock absorber adapts to complicated road surface, improve shock attenuation effect. In addition, when the damper does not need to be adjusted and controlled, the electromagnetic valve can be closed, and the use is flexible.

Specifically, the piston assembly comprises a bottom gasket 8, a seal seat 9, a compression ring 10, a spring 11 and a compression nut 12 which are sequentially sleeved on the valve rod, wherein a compression oil path 13 and a return oil path 14 are arranged on the seal seat, the outer ring of the bottom gasket is recessed leftwards to enable the bottom gasket and the left end face of the seal seat to form an oil passing gap 15, the compression ring is arranged in a counter bore 16 of the valve seat and is compressed on the return oil path through a seal gasket 26, and the spring is arranged between the compression ring and the compression nut. The compression oil channel 13 and the return oil channel 14 of the piston assembly are used for medium passing when the shock absorber extends and contracts.

Specifically, the sealing device further comprises a sealing sleeve 17, and the sealing sleeve 17 and the sealing seat are connected through a connecting step 18 which is matched with each other.

Among the above-mentioned technical scheme, increase the inner wall realization of seal cover and inner tube in the seal receptacle outer lane and seal, seal cover and seal receptacle are connected through the step of mutual block, and it is more convenient to assemble the change.

Specifically, the right side of the guider is provided with a sealing ring 19, the right end of the sealing ring 19 is provided with a conical sleeve 20 with the diameter gradually reduced, and the valve rod is provided with a conical section 21 for clamping the conical sleeve.

Among the above-mentioned technical scheme, increased the leakproofness between director and the valve rod through setting up the sealing ring, moreover, the sealing ring front end is equipped with the toper cover, and the toper phase-match of toper cover and valve rod when the valve rod moves to the right, laminating pressure increase between toper cover and the valve rod further improves sealing performance.

Specifically, a compensation valve hole 22 and a compression valve hole 23 are arranged on the bottom valve assembly; an O-shaped sealing ring 24 is arranged between the compression ring and the sealing gasket.

The utility model discloses a theory of operation does: as shown in fig. 1, when the electromagnetic valve is opened and in a conducting state, when the piston rod is stretched, oil in the shock absorber flows through a cavity 27 between the inner tube 2 and the intermediate tube 3 from a medium inlet 28 of the inner tube along the arrow direction in fig. 1, then enters from an oil inlet of the electromagnetic valve, flows out from an oil outlet of the electromagnetic valve, passes through the bottom valve assembly and enters the inner tube again; when the electromagnetic valve is opened and is in a conducting state, and the piston rod is stretched, the oil in the shock absorber flows in a direction opposite to the arrow direction. The working of the whole shock absorber depends on the electromagnetic valve to control the flow of the oil liquid so as to realize the control and adjustment of the shock absorber on the damping force, improve the shock absorption effect and adapt to complex road conditions.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims

1. An external double-cylinder electric control shock absorber comprises an outer pipe, an inner pipe and an intermediate pipe which are coaxially arranged; the guider is arranged at the left end of the outer pipe; one end of the valve rod penetrates through the guider and extends into the inner pipe; a piston assembly disposed on one end of the valve stem extending into the inner tube; the bottom valve assembly is arranged at the right end of the outer pipe; the solenoid valve assembly of setting on the outer tube, its characterized in that: the cavity between the inner pipe and the middle pipe is communicated with the working cavity of the inner pipe through a medium inlet on the inner pipe, a medium outlet is arranged on the middle pipe and is connected with an oil inlet of the electromagnetic valve, an oil outlet of the electromagnetic valve is communicated with the inner cavity of the outer pipe, and the inner cavity of the outer pipe is communicated through a bottom valve assembly.

2. The external dual-tube electronically controlled shock absorber according to claim 1, wherein: the piston assembly comprises a bottom gasket, a sealing seat, a compression ring, a spring and a compression nut which are sequentially sleeved on the valve rod, wherein a compression oil way and a return oil way are arranged on the sealing seat, the outer ring of the bottom gasket is recessed leftwards to enable the bottom gasket and the left end face of the sealing seat to form an oil passing gap, the compression ring is arranged in a counter bore of the valve seat and is compressed on the return oil way through a sealing gasket, and the spring is arranged between the compression ring and the compression nut.

3. The external dual-tube electronically controlled shock absorber according to claim 2, wherein: the sealing device is characterized by further comprising a sealing sleeve, and the sealing sleeve and the sealing seat are connected through mutually matched connecting steps.

4. The external dual-tube electronically controlled shock absorber according to claim 3, wherein: the right side of the guider is provided with a sealing ring, the right end of the sealing ring is provided with a conical sleeve with the diameter gradually reduced, and the valve rod is provided with a conical section for clamping the conical sleeve.

5. The external dual-tube electronically controlled shock absorber according to claim 2, wherein: and the bottom valve assembly is provided with a compensation valve hole and a compression valve hole.

6. The external dual-tube electronically controlled shock absorber according to claim 2, wherein: an O-shaped sealing ring is arranged between the compression ring and the sealing gasket.