Buffer block with variable rigidity

Abstract

The utility model discloses a buffer block with variable rigidity, and belongs to the technical field of automobiles. The problem that in the prior art, the rigidity of a buffer block is fixed is solved. The buffer block mainly comprises a buffer block body, an oil cavity is formed in the buffer block body, a top plate is installed at the top of the buffer block body, an oil hole is formed in the top of the oil cavity, the oil hole is connected with the lower end of a middle oil pipe, the upper end of the middle oil pipe penetrates through the top plate and is connected with the bottom of an oil tank, and a top oil pipe is installed at the top of the oil tank. The top oil pipe extends downwards into the lower side in the oil tank, a first electric valve is mounted on the top oil pipe on the upper side of the oil tank, a liquid level pipe is further mounted at the top of the oil tank, a second electric valve is mounted at the bottom of the liquid level pipe, and a breather valve and a liquid level meter are mounted on the liquid level pipe on the upper side of the second electric valve respectively.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile, concretely speaking, especially relate to a stiffness variable buffer block. BACKGROUND

[0002] In the suspension system of the automobile, the buffer block belongs to important component, its main function is to limit the suspension travel, prevent direct collision between parts, and play the role of buffering and shock absorption when the suspension is compressed and stretched, the buffer block of prior art is usually fixed stiffness, and it is difficult to adapt to the complex impact demand under different working conditions. For example, in the process of automobile driving, different road conditions (such as flat highway, bumpy dirt road) require different stiffness of the buffer block, and the buffer block with fixed stiffness cannot simultaneously consider comfort and steering stability. Therefore, it has important practical significance to develop a buffer block that can flexibly adjust the stiffness according to the actual working condition. SUMMARY

[0003] The utility model aims at providing a stiffness variable buffer block to overcome the problem of fixed stiffness of the buffer block in the prior art.

[0004] The utility model discloses a stiffness variable buffer block, including buffer block body, oil chamber is equipped in the buffer block body, the top of buffer block body is installed with the top plate, the top of oil chamber is equipped with oil hole, the lower end of the intermediate oil pipe is connected with oil hole, the upper end of intermediate oil pipe passes through the top plate and is connected with the bottom of oil tank, the top of oil tank is installed with top oil pipe, top oil pipe goes down and reaches the downside in oil tank, the first electric valve is installed to top oil pipe on the upside of oil tank, the top of oil tank is also installed with liquid level pipe, the second electric valve is installed to the bottom of liquid level pipe, and the liquid level meter and the air vent valve are installed to the upside of the second electric valve.

[0005] Further, the buffer block body and the top plate are connected by vulcanization.

[0006] Further, the two sides of the top plate are respectively provided with mounting holes.

[0007] Further, the buffer block body is made of rubber material.

[0008] Further, the liquid level meter is a radar liquid level meter.

[0009] Further, the second electric valve is an electric ball valve.

[0010] Further, the liquid level meter is installed on the top of the liquid level pipe, the sidewall of the liquid level pipe is connected with the air pipe, and the air pipe is connected with the air vent valve.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] The utility model discloses a variable stiffness buffer block, and further makes the operator adjust the stiffness of the buffer block body during the driving of the vehicle, thereby better adapting to different road conditions. For example, when the vehicle drives on a flat road, the operator can pre-feed oil into the oil tank, thereby increasing the stiffness of the buffer block body, enhancing the stability of the vehicle and improving the driving experience. When the vehicle drives on a bumpy road, the operator can pre-extract part of the oil in the oil tank, thereby reducing the stiffness of the buffer block body. At this time, the suspension deflection is increased, the smoothness of the vehicle is enhanced, and the riding experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the sectional view of the utility model;

[0014] Figure 2 is the structural schematic view of the buffer block body.

[0015] In the figure: 1, buffer block body; 2, oil chamber; 3, top plate; 4, oil hole; 5, intermediate oil pipe; 6, oil tank; 7, top oil pipe; 8, first electric valve; 9, liquid level pipe; 10, second electric valve; 11, breather valve; 12, liquid level meter; 13, mounting hole; 14, breather pipe. DETAILED DESCRIPTION

[0016] In order to make the personnel in the technical field better understand the technical scheme in the utility model, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.

[0017] A stiffness variable buffer block, comprising a buffer block body 1, the buffer block body 1 is rubber material, the buffer block body 1 is equipped with oil chamber 2, the top of buffer block body 1 is equipped with top plate 3, and the buffer block body 1 is adhered to top plate 3 by vulcanization. The both sides of top plate 3 are respectively provided with mounting hole 13. In the installation, the top plate 3 of buffer block body 1 can be fixedly installed on the bottom surface of the longitudinal beam of the vehicle frame, and in the installation, the bolt can pass through the mounting hole 13 on the base and the perforation on the longitudinal beam and be installed with the nut fastening.

[0018] The top of oil chamber 2 is provided with oil hole 4, the lower end of intermediate oil pipe 5 is connected with oil hole 4, and oil chamber 2 realizes oil feeding and oil discharging through intermediate oil pipe 5.

[0019] The upper end of intermediate oil pipe 5 passes through top plate 3 and is connected with the bottom of oil tank 6, and oil tank 6 realizes the communication with oil chamber 2 through intermediate oil pipe 5.

[0020] The top of the oil tank 6 is provided with a top oil pipe 7 which extends downward into the lower side of the oil tank 6. The top oil pipe 7 is connected with an oil pump through an oil path, and the oil pump draws oil from or feeds oil into the oil tank 6 through the top oil pipe 7.

[0021] The top oil pipe 7 is provided with a first electric valve 8 on the upper side of the oil tank 6. The first electric valve 8 can realize the closure of the top oil pipe 7. When the top oil pipe 7 does not draw oil or feed oil, the first electric valve 8 is in a closed state. When the top oil pipe 7 draws oil or feeds oil, the first electric valve 8 is in an open state.

[0022] The top of the oil tank 6 is also provided with a liquid level pipe 9. The bottom of the liquid level pipe 9 is provided with a second electric valve 10. The liquid level pipe 9 is provided with a breather valve 11 and a liquid level meter 12 on the upper side of the second electric valve 10. The liquid level meter 12 is a radar liquid level meter. The second electric valve 10 is an electric ball valve. The liquid level meter 12 is installed on the top of the liquid level pipe 9. The sidewall of the liquid level pipe 9 is connected with an air pipe 14 which is connected with the breather valve 11.

[0023] The liquid level pipe 9 and the second electric valve 10 can protect the breather valve 11 and the liquid level meter 12 from being exposed to high-pressure oil, thereby improving the stability of the breather valve 11 and the liquid level meter 12. The oil in the oil tank 6 is generally drawn or fed when the vehicle is not running. When the top oil pipe 7 does not draw or feed oil, the second electric valve 10 is in a closed state. When the top oil pipe 7 draws or feeds oil, the second electric valve 10 is in an open state. The first electric valve 8 and the second electric valve 10 can be opened and closed simultaneously. When the top oil pipe 7 draws or feeds oil, the second electric valve 10 is in an open state. At this time, the breather valve 11 can realize the pressure balance in the oil tank 6, so that the oil tank 6 can smoothly draw or feed oil. At the same time, the liquid level meter 12 can detect the liquid level of the oil in the tank. When the liquid level meter 12 detects that the liquid level of the oil in the tank reaches a set value, the controller controls the first electric valve 8, the second electric valve 10 and the oil pump to be closed.

[0024] The working principle of the utility model is as follows:

[0025] In the utility model, when the buffer block body is subjected to external impact, the buffer block body 1 is compressed, and then the oil in the oil chamber 2 enters the oil tank 6, and the cavity part in the oil tank 6 is compressed, and the compressibility of the cavity part in the oil tank 6 and the buffer block body 1 enables the utility model to absorb and disperse part of impact energy, thereby playing a buffering role, in the process that the cavity part in the oil tank 6 is compressed, the impact energy is converted into internal energy and elastic potential energy, when the impact force disappears, the compressed part gradually restores to the original state, and the buffer block body restores to the original shape, thereby preparing for the next impact, when the liquid level of the oil in the oil tank 6 rises, the cavity in the oil tank 6 decreases, namely the compressible part in the oil tank 6 decreases, so that the stiffness of the buffer block body 1 increases, when the liquid level of the oil in the oil tank 6 decreases, the cavity in the oil tank 6 increases, namely the compressible part in the oil tank 6 increases, so that the stiffness of the buffer block body 1 decreases.

[0026] In the utility model, when the buffer block body is subjected to external impact, the buffer block body 1 is compressed, and then the oil in the oil chamber 2 enters the oil tank 6, and the cavity part in the oil tank 6 is compressed, and the compressibility of the cavity part in the oil tank 6 and the buffer block body 1 enables the utility model to absorb and disperse part of impact energy, thereby playing a buffering role, in the process that the cavity part in the oil tank 6 is compressed, the impact energy is converted into internal energy and elastic potential energy, when the impact force disappears, the compressed part gradually restores to the original state, and the buffer block body restores to the original shape, thereby preparing for the next impact, when the liquid level of the oil in the oil tank 6 rises, the cavity in the oil tank 6 decreases, namely the compressible part in the oil tank 6 decreases, so that the stiffness of the buffer block body 1 increases, when the liquid level of the oil in the oil tank 6 decreases, the cavity in the oil tank 6 increases, namely the compressible part in the oil tank 6 increases, so that the stiffness of the buffer block body 1 decreases.

[0027] When the utility model needs to increase the stiffness of the buffer block body 1, first, the first electric valve 8 and the second electric valve 10 are opened, and then the oil pump is opened, the oil pump is in oil and the oil tank 6 through the oil way and the top oil pipe 7, make the oil level of the oil in the oil tank 6 rise, when the oil level of the oil in the oil tank 6 is detected to rise to a certain value by the liquid level gauge 12, the controller controls the first electric valve 8, the second electric valve 10 and the oil pump to be closed.

[0028] When the utility model needs to increase the stiffness of the buffer block body 1, first, the first electric valve 8 and the second electric valve 10 are opened, and then the oil pump is opened, the oil pump is in oil and the oil tank 6 through the oil way and the top oil pipe 7, make the oil level of the oil in the oil tank 6 rise, when the oil level of the oil in the oil tank 6 is detected to rise to a certain value by the liquid level gauge 12, the controller controls the first electric valve 8, the second electric valve 10 and the oil pump to be closed.

Claims

1. A buffer block with variable stiffness, characterized in that, The system includes a buffer block body (1), an oil chamber (2) inside the buffer block body (1), a top plate (3) installed on the top of the buffer block body (1), an oil hole (4) opened on the top of the oil chamber (2), the oil hole (4) is connected to the lower end of the intermediate oil pipe (5), the upper end of the intermediate oil pipe (5) passes through the top plate (3) and connects to the bottom of the oil tank (6), a top oil pipe (7) is installed on the top of the oil tank (6), the top oil pipe (7) extends downward into the lower side of the oil tank (6), a first electric valve (8) is installed on the top side of the top oil pipe (7), a liquid level pipe (9) is also installed on the top of the oil tank (6), a second electric valve (10) is installed at the bottom of the liquid level pipe (9), and a vent valve (11) and a liquid level gauge (12) are respectively installed on the upper side of the second electric valve (10) on the liquid level pipe (9).

2. The variable stiffness buffer block according to claim 1, characterized in that, The buffer block body (1) and the top plate (3) are bonded together by vulcanization.

3. The variable stiffness buffer block according to claim 2, characterized in that, Mounting holes (13) are provided on both sides of the top plate (3).

4. The variable stiffness buffer block according to claim 1, characterized in that, The buffer block body (1) is made of rubber.

5. The variable stiffness buffer block according to claim 1, characterized in that, The level gauge (12) is a radar level gauge.

6. The variable stiffness buffer block according to claim 1, characterized in that, The second electric valve (10) is an electric ball valve.

7. The variable stiffness buffer block according to any one of claims 1-6, characterized in that, The level gauge (12) is installed on the top of the level tube (9), and the side wall of the level tube (9) is connected to a vent pipe (14), which is connected to a vent valve (11).

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