Automobile shock absorber

Abstract

The utility model discloses an automobile shock absorber, and mainly relates to the technical field of shock absorbers. Comprising a shock absorber cylinder body and a piston arranged in the shock absorber cylinder body, the piston is provided with a piston rod extending outwards out of the shock absorber cylinder body, in the shock absorber cylinder body, the space above the piston is an upper cavity, and the space below the piston is a lower cavity; an oil inlet communicated with the upper cavity and an oil outlet communicated with the lower cavity are formed in the outer wall of the shock absorber cylinder body, a first one-way valve is arranged in the oil outlet, a second one-way valve is arranged on the piston, and hydraulic oil enters the lower cavity through the second one-way valve after entering the upper cavity through the oil inlet through cooperation of the first one-way valve and the second one-way valve. Finally, the gas is discharged outwards through the first one-way valve; according to the utility model, kinetic energy generated by bumping of a vehicle body can be converted into available energy.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to an automobile shock absorber. Background Art

[0002] At present, the existing automotive hydraulic shock absorbers adopt a hydraulic cylinder structure, and the hydraulic oil is stored between the shock absorber jacket and the cylinder wall. During the reciprocating motion of the shock absorber piston, the hydraulic oil is pumped back and forth from the inside of the cylinder to the outside of the cylinder, thereby converting the kinetic energy of the vehicle body's bumps into heat energy, which is radiated and dissipated into the air. In this process, a certain amount of damping is generated, and the kinetic energy generated by the vehicle body's bumps is wasted. Therefore, there is an urgent need for an automotive shock absorber that can convert the kinetic energy generated by the vehicle body's bumps into usable energy. Utility Model Content

[0003] The purpose of the utility model is to solve the problems existing in the prior art and to provide a car shock absorber which can convert the kinetic energy generated by the bumps of the car body into usable energy.

[0004] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0005] A car shock absorber includes a shock absorber cylinder and a piston arranged in the shock absorber cylinder. The piston is provided with a piston rod extending outward from the shock absorber cylinder. In the shock absorber cylinder, the space above the piston is an upper chamber, and the space below the piston is a lower chamber. The outer wall of the shock absorber cylinder is provided with an oil inlet connected to the upper chamber and an oil outlet connected to the lower chamber. A first one-way valve is provided in the oil outlet, and a second one-way valve is provided on the piston. Through the cooperation of the first one-way valve and the second one-way valve, hydraulic oil enters the upper chamber through the oil inlet, enters the lower chamber through the second one-way valve, and is finally discharged outward through the first one-way valve.

[0006] Preferably, a spring is sleeved on the piston rod, a spring tray is provided on the top of the shock absorber cylinder, a spring pressure plate is provided on the top of the piston rod, one end of the spring abuts against the spring tray, and the other end abuts against the spring pressure plate.

[0007] Preferably, a screw rod for connecting to a vehicle frame is provided on the top of the piston rod, and a connecting seat for connecting to an axle is provided on the bottom of the shock absorber cylinder.

[0008] Preferably, the spring pressure plate is locked to the piston rod by a nut.

[0009] Preferably, the oil outlet is connected to the input end of the hydraulic motor through a first pipeline, the output end of the hydraulic motor is connected to the hydraulic oil tank through a second pipeline, and the hydraulic oil tank is connected to the oil inlet through a third pipeline.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The utility model cooperates with the first one-way valve and the second one-way valve to ensure that the hydraulic oil only flows downward during the reciprocating motion of the piston. After the hydraulic oil enters the upper chamber through the oil inlet, it enters the lower chamber through the second one-way valve and is finally discharged outward through the first one-way valve. The hydraulic oil with a certain pressure is discharged from the oil outlet, which can be used as the power source of the hydraulic actuator. The oil outlet can be used as the input power source of the external hydraulic motor. A closed circuit is formed through the oil inlet to recover kinetic energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the present utility model.

[0013] The numbers in the accompanying drawings are: 1. shock absorber cylinder; 2. piston; 3. piston rod; 4. upper chamber; 5. lower chamber; 6. oil inlet; 7. oil outlet; 8. first one-way valve; 9. second one-way valve; 10. spring; 11. spring tray; 12. spring pressure plate; 13. screw; 14. connecting seat; 15. nut. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined in this application.

[0015] Example: As shown in the attached Figure 1 As shown, the utility model is a car shock absorber, comprising a shock absorber cylinder 1, a piston 2 arranged in the shock absorber cylinder 1, the piston 2 is provided with a piston rod 3 extending outward from the shock absorber cylinder 1, the piston rod 3 is sleeved with a spring 10, the top of the shock absorber cylinder 1 is provided with a spring tray 11, the top of the piston rod 3 is provided with a spring pressure plate 12, one end of the spring 10 abuts against the spring tray 11, and the other end abuts against the spring pressure plate 12.

[0016] To facilitate the installation of the present invention, a screw rod 13 for connecting to the vehicle frame is provided on the top of the piston rod 3, and a connecting seat 14 for connecting to the axle is provided on the bottom of the shock absorber cylinder 1.

[0017] Preferably, in order to facilitate the disassembly and assembly of the spring, the outer diameter of the screw 13 is smaller than the outer diameter of the piston rod 3, and a through hole adapted to the screw 13 is provided on the spring pressure plate 12, and the nut 15 is located on the upper side of the spring pressure plate 12, and the nut 15 is installed on the screw 13, and the spring pressure plate 12 is locked on the piston rod 3 through the nut 15.

[0018] In the shock absorber cylinder 1, the space above the piston 2 is the upper chamber 4, and the space below the piston 2 is the lower chamber 5; the outer wall of the shock absorber cylinder 1 is provided with an oil inlet 6 connected to the upper chamber 4, and an oil outlet 7 connected to the lower chamber 5, a first one-way valve 8 is provided in the oil outlet 7, and a second one-way valve 9 is provided on the piston 2. Through the cooperation of the first one-way valve 8 and the second one-way valve 9, the hydraulic oil enters the upper chamber 4 through the oil inlet 6, enters the lower chamber 5 through the second one-way valve 9, and is finally discharged outward through the first one-way valve 8. Through the first one-way valve 8 and the second one-way valve 9, the hydraulic oil only flows in one direction during the reciprocating motion of the piston 2.

[0019] Preferably, the oil outlet 7 is connected to the input end of the hydraulic motor through a first pipeline, the output end of the hydraulic motor is connected to the hydraulic oil tank through a second pipeline, and the hydraulic oil tank is connected to the oil inlet 6 through a third pipeline. The hydraulic oil of a conventional shock absorber is stored between the shock absorber jacket and the cylinder wall. The utility model eliminates the shock absorber jacket and stores the hydraulic oil in an independent hydraulic oil tank to form a closed loop to achieve kinetic energy recovery.

Claims

1. An automobile shock absorber, comprising a shock absorber cylinder (1), a piston (2) disposed in the shock absorber cylinder (1), wherein the piston (2) is provided with a piston rod (3) extending outward from the shock absorber cylinder (1), characterized in that: In the shock absorber cylinder (1), the space above the piston (2) is the upper chamber (4), and the space below the piston (2) is the lower chamber (5); an oil inlet (6) communicating with the upper chamber (4) and an oil outlet (7) communicating with the lower chamber (5) are provided on the outer wall of the shock absorber cylinder (1); a first one-way valve (8) is provided in the oil outlet (7), and a second one-way valve (9) is provided on the piston (2); through the cooperation of the first one-way valve (8) and the second one-way valve (9), the hydraulic oil enters the upper chamber (4) through the oil inlet (6), enters the lower chamber (5) through the second one-way valve (9), and is finally discharged outward through the first one-way valve (8); A spring (10) is sleeved on the piston rod (3), a spring tray (11) is provided at the top end of the shock absorber cylinder (1), a spring pressure plate (12) is provided at the top end of the piston rod (3), one end of the spring (10) abuts against the spring tray (11), and the other end abuts against the spring pressure plate (12).

2. The automobile shock absorber according to claim 1, characterized in that: The top of the piston rod (3) is provided with a screw rod (13) for connecting to the vehicle frame, and the bottom of the shock absorber cylinder (1) is provided with a connecting seat (14) for connecting to the vehicle axle.

3. The automobile shock absorber according to claim 2, characterized in that: The spring pressure plate (12) is locked to the piston rod (3) by means of a nut (15).

4. The automobile shock absorber according to claim 1, characterized in that: The oil outlet (7) is connected to the input end of the hydraulic motor via a first pipeline, the output end of the hydraulic motor is connected to the hydraulic oil tank via a second pipeline, and the hydraulic oil tank is connected to the oil inlet (6) via a third pipeline.

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