Automobile chassis height adjusting structure

Abstract

The invention belongs to an automobile chassis height adjusting structure in the technical field of automobiles. The second hydraulic chamber (2) is internally provided with a lifting moving block (4), the upper part of the lifting moving block (4) is connected with a shock absorber (5), the second hydraulic chamber (2) is communicated with an adjusting chamber (3) through a second pipeline (7), the adjusting chamber (3) is internally provided with a piston (8), a piston rod (9) of the piston (8) extends to an upper chamber (10), the upper part of the piston rod (9) is provided with a worm (11), the upper chamber (10) is internally provided with a motor (12), and a rotating shaft of the motor (12) is provided with a worm wheel (13); and the turbine (13) is meshed with the worm (11). According to the automobile chassis height adjusting structure, automobile chassis height adjustment can be conveniently and flexibly achieved, the occupied space is small, response is fast, starting can be achieved at any time, the defects that an air spring is large in space occupancy rate, air leakage is slow, and an air compressor needs to be started irregularly are overcome, and the overall performance of an automobile is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobiles, and more specifically, relates to a height adjustment structure for an automobile chassis. Background Art

[0002] With the development of the automobile industry, automobile intelligence and functional diversification have become an obvious trend. At present, height-adjustable suspensions can be roughly divided into two types. One way is to adjust through air springs. This solution is relatively expensive and can only be used on high-end cars at this stage. In addition, it consumes oil or electricity under any working conditions, and the cost of use is relatively high. With the improvement of national road construction, the utilization rate of the air spring to adjust the chassis height function is relatively low. Another way to adjust the chassis height is to adjust the height of the shock absorber spring disc, but adjusting the height of the spring disc requires sacrificing the suspension jump stroke. In summary, the defects of the prior art are: the chassis height is adjusted by air springs, the adjustment time is relatively slow, and the air spring air pump, air tank, etc. occupy a large space, the air spring will leak, and an air compressor is required to inflate after a period of use; adjusting the chassis height by adjusting the spring disc requires sacrificing the suspension stroke, and the upper and lower limit positions of the suspension cannot be changed.

[0003] There is a technology named "Automobile chassis height adjustment" and the publication (announcement) number is "CN108482053B" in the prior art, which discloses an automobile chassis height adjustment device, and relates to the field of automobile accessories technology. The present invention includes a chassis body, and the front wheel frame and the rear wheel frame are respectively fixed on opposite sides of the chassis body, and the air suspension is fixed on opposite sides of the front wheel frame and the rear wheel frame; the air suspension includes a sleeve, and a shock absorbing assembly is arranged in the sleeve, and a shock absorber bottom valve is fixed at one end of the sleeve, and a pressure-bearing sleeve is sleeved on the side surface of the sleeve. The present invention forms a water circulation through a micro water pump, a water tank, a micro water pump, an L-shaped pipe and an annular notch. During the water circulation, the water absorbs the heat absorbed by the heat-conducting ring and discharges it into the water tank, and the heat is efficiently dissipated through the coordinated use of the heat-conducting rod, the water tank, the ice scales and the heat dissipation fan, which solves the problem of dangers such as explosion of the cylinder caused by the heat generated when the air suspension is used, improves the service life of the air suspension, and reduces the frequency of maintenance of the air suspension.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in view of the shortcomings of the existing technology, a car chassis height adjustment structure with a simple structure is provided, which can conveniently and flexibly adjust the chassis height of the car, occupies a small space, has a fast response, and can be started at any time, thereby overcoming the shortcomings of the air spring, such as large space occupancy, slow air leakage, and the need to start the air compressor at irregular intervals, and improving the overall performance of the vehicle.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0007] The present invention discloses a height adjustment structure for a vehicle chassis. A second hydraulic chamber and an adjustment chamber are arranged inside a steering knuckle. A lifting and moving block is arranged inside the second hydraulic chamber. The upper part of the lifting and moving block 4 is connected with a shock absorber. The shock absorber is installed in a guide sleeve on the steering knuckle. The second hydraulic chamber is connected with the adjustment chamber through a second pipeline. A piston is arranged in the adjustment chamber. The piston rod of the piston extends to the upper chamber. A worm gear is arranged on the upper part of the piston rod. A motor is installed in the upper chamber. A turbine is installed on the rotating shaft of the motor. The turbine engages with a worm gear.

[0008] A first hydraulic chamber is also arranged inside the steering knuckle. The first hydraulic chamber is connected to the regulating chamber through a first pipeline, and the first hydraulic chamber is connected to the second hydraulic chamber through a third pipeline.

[0009] The second pipeline is provided with a second control valve, the first pipeline is provided with a first control valve, and the third pipeline is provided with a ball valve.

[0010] The steering knuckle is connected to the wheel hub, and the shock absorber is connected to the vehicle frame.

[0011] The motor, the first control valve and the second control valve are respectively connected to the control components.

[0012] When the control component controls the motor to rotate forward, the motor is configured to be able to drive the worm to move downward through the turbine, the worm pushes the piston to move downward, the oil in the adjustment chamber enters the second hydraulic chamber through the second pipeline, the oil pushes the lifting moving block in the second hydraulic chamber to move upward, pushes the shock absorber to move upward, and completes the height adjustment of the automobile chassis.

[0013] When the control component controls the motor to rotate in the opposite direction, the motor is configured to be able to drive the worm to move upward through the turbine, the worm pulls the piston to move upward, the oil in the second hydraulic chamber flows back to the first hydraulic chamber through the third pipeline, the lifting moving block moves downward, the shock absorber moves downward, and the vehicle chassis is lowered.

[0014] When the automobile chassis height adjustment structure completes the adjustment of the automobile chassis, the first control valve is opened, the second control valve is closed, the oil in the first hydraulic chamber enters the adjustment chamber, the second control valve is opened again, the first control valve is closed again, and the oil in the adjustment chamber enters the second hydraulic chamber through the second pipeline.

[0015] When the automobile chassis height adjustment structure completes lowering of the automobile chassis, the ball valve opens, the first one-way valve and the second one-way valve close, and the oil in the second hydraulic chamber enters the first hydraulic chamber.

[0016] The technical solution of the present invention is adopted, and the working principle and beneficial effects are as follows:

[0017] The automobile chassis height adjustment structure described in the present invention, when the structure is set, the steering knuckle is the basis for setting the corresponding components, the second hydraulic chamber and the adjustment chamber are set inside the steering knuckle, and it also includes a first hydraulic chamber, the oil can be switched between different chambers, and the motor drives the turbine to rotate, drives the meshing worm, and realizes the control of the piston by the turbine worm mechanism. The first control valve, the second control valve, and the manual regulating valve can realize on-off control as needed. When adjusting the automobile chassis (raising or lowering), if the chassis needs to be raised, the motor is controlled to rotate in the forward direction through the control component, the motor drives the worm to move downward through the turbine, the worm pushes the piston to move downward, the oil in the adjustment chamber enters the second hydraulic chamber through the second pipeline, the oil pushes the lifting moving block in the second hydraulic chamber to move upward, pushes the shock absorber to move upward, and completes the height adjustment of the automobile chassis. During the chassis height adjustment process, the first control valve is opened, the second control valve is closed, the oil in the first hydraulic chamber enters the adjustment chamber, and the oil supply is realized for the adjustment chamber. The second control valve is opened again, the first control valve is closed again, and then the piston moves down to squeeze the oil in the adjustment chamber, and the oil in the adjustment chamber enters the second hydraulic chamber through the second pipeline. In this way, the chassis height adjustment can be realized reliably. If the chassis needs to be lowered, when the control component controls the motor to rotate in the opposite direction, the motor drives the worm to move upward through the turbine, and the worm pulls the piston upward, and the oil in the second hydraulic chamber flows back to the first hydraulic chamber through the third pipeline, the lifting moving block moves downward, and the shock absorber moves downward, and the automobile chassis is lowered. During the automobile chassis lowering process, the ball valve is opened, the first check valve and the second check valve are closed, and the oil in the second hydraulic chamber enters the first hydraulic chamber to complete the oil return. In this way, by repeating the above steps, the chassis adjustment can be completed conveniently and quickly, and the chassis height can be adjusted at any time, the operation is simple, and the adjustment is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 It is a structural schematic diagram of the automobile chassis height adjustment structure of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of an enlarged cross-sectional structure of a portion A of the automobile chassis height adjustment structure;

[0021] Figure 3 for Figure 2 A schematic cross-sectional enlarged structural diagram of the B portion of the automobile chassis height adjustment structure;

[0022] The marks in the accompanying drawings are respectively: 1, steering knuckle; 2, second hydraulic chamber; 3, adjusting chamber; 4, lifting moving block; 5, shock absorber; 6, guide sleeve; 7, second pipeline; 8, piston; 9, piston rod; 10, upper chamber; 11, worm rod; 12, motor; 13, turbine; 14, first hydraulic chamber; 15, first pipeline; 16, third pipeline; 17, second control valve; 18, first control valve; 19, ball valve; 20, wheel hub; 21, motor connector. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various components involved, the function and working principle of each part, etc., through the description of the embodiments with reference to the accompanying drawings:

[0024] As attached Figure 1 -Attached Figure 3As shown, the present invention is a height adjustment structure for a vehicle chassis. A second hydraulic chamber 2 and an adjustment chamber 3 are arranged inside a steering knuckle 1. A lifting moving block 4 is arranged inside the second hydraulic chamber 2. The upper part of the lifting moving block 4 is connected to a shock absorber 5. The shock absorber 5 is installed in a guide sleeve 6 on the steering knuckle 1. The second hydraulic chamber 2 is connected to the adjustment chamber 3 through a second pipeline 7. A piston 8 is arranged inside the adjustment chamber 3. The piston rod 9 of the piston 8 extends to the upper chamber 10. A worm 11 is arranged on the upper part of the piston rod 9. A motor 12 is installed in the upper chamber 10. A turbine 13 is installed on the rotating shaft of the motor 12. The turbine 13 meshes with the worm 11. A first hydraulic chamber 14 is also arranged inside the steering knuckle 1. The first hydraulic chamber 14 is connected to the adjustment chamber 3 through a first pipeline 15. The first hydraulic chamber 14 is connected to the second hydraulic chamber 2 through a third pipeline 16. A second control valve 17 is arranged on the second pipeline 7, a first control valve 18 is arranged on the first pipeline 15, and a ball valve 19 is arranged on the third pipeline 16. The above structure proposes an improved technical solution for the deficiencies in the prior art. When the structure is set, the steering knuckle is the basis for setting the corresponding components. The second hydraulic chamber 2 and the adjustment chamber 3 are set inside the steering knuckle 1, and the first hydraulic chamber 14 is also included. The oil can be switched in different chambers, and the motor drives the turbine to rotate, driving the meshing worm to realize the control of the piston by the turbine worm mechanism. The first control valve, the second control valve, and the manual regulating valve can realize on-off control as needed. When adjusting the chassis of the automobile (raising or lowering), if the chassis needs to be raised, the motor 12 is controlled to rotate forwardly through the control component, and the motor 12 drives the worm 11 to move downward through the turbine 13, and the worm 11 pushes the piston 8 to move downward, and the oil in the adjustment chamber 3 enters the second hydraulic chamber 2 through the second pipeline 7, and the oil pushes the lifting moving block 4 in the second hydraulic chamber 2 to move upward, and pushes the shock absorber 5 to move upward, and the chassis of the automobile is raised. During the process of raising the chassis, the first control valve 18 is opened, the second control valve 17 is closed, the oil in the first hydraulic chamber 14 enters the regulating chamber 3, and the oil supply is realized for the regulating chamber 3. The second control valve 17 is opened again, the first control valve 18 is closed again, and then the piston 8 moves downward to squeeze the oil in the regulating chamber 3, and the oil in the regulating chamber 3 enters the second hydraulic chamber 2 through the second pipeline 17. In this way, the chassis raising is reliably realized. If the chassis needs to be lowered, when the control component controls the motor 12 to rotate in the opposite direction, the motor 12 drives the worm 11 to move upward through the turbine 13, and the worm 11 pulls the piston 8 to move upward, and the oil in the second hydraulic chamber 2 flows back to the first hydraulic chamber 14 through the third pipeline, the lifting moving block 4 moves downward, and the shock absorber 5 moves downward, and the automobile chassis is lowered. During the process of lowering the automobile chassis, the ball valve 19 is opened, the first check valve 18 and the second check valve 17 are closed, and the oil in the second hydraulic chamber 2 enters the first hydraulic chamber 14 to complete the oil return. In this way, by repeating the above steps, the chassis adjustment can be completed conveniently and quickly, and the chassis height can be adjusted at any time, the operation is simple, and the adjustment is reliable.The automobile chassis height adjustment structure described in the present invention has a simple structure, can conveniently and flexibly realize the automobile chassis height adjustment, occupies a small space, has a fast response, and can be started at any time. It overcomes the shortcomings of air springs such as large space occupancy, slow air leakage, and the need to start the air compressor at irregular intervals, thereby improving the overall performance of the vehicle.

[0025] The steering knuckle 1 is connected to the wheel hub 20, and the shock absorber 5 is connected to the vehicle frame. In the above structure, the steering knuckle is connected to the vehicle frame through the shock absorber, and the height change of the shock absorber realizes the adjustment of the chassis height.

[0026] The motor 12, the first control valve 18, and the second control valve 17 are connected to the control components respectively. With the above structure, the control components can reliably realize the automatic control of the corresponding components. When the chassis height adjustment is required, the operator only needs to output the corresponding instructions to the control component. The function of the ball valve 19: After the chassis height adjustment is completed, the pressure in the second hydraulic chamber 2 can be guaranteed to remain unchanged. At this time, the system does not need external energy input, which saves costs. Here, the disadvantage of unstable air pressure inside the air spring is compensated. The ball valve 19 can also be automatically controlled by the control component.

[0027] When the control component controls the motor 12 to rotate forward, the motor 12 is configured to be able to drive the worm 11 to move downward through the turbine 13, and the worm 11 pushes the piston 8 to move downward, and the oil in the adjustment chamber 3 enters the second hydraulic chamber 2 through the second pipeline 7, and the oil pushes the lifting moving block 4 in the second hydraulic chamber 2 to move upward, pushing the shock absorber 5 to move upward, and the vehicle chassis is adjusted. When the vehicle chassis height adjustment structure completes the vehicle chassis adjustment, the first control valve 18 opens, the second control valve 17 closes, the oil in the first hydraulic chamber 14 enters the adjustment chamber 3, the second control valve 17 opens again, the first control valve 18 closes again, and the oil in the adjustment chamber 3 enters the second hydraulic chamber 2 through the second pipeline 17. With the above structure, the operator only needs to issue instructions to the control component to conveniently achieve chassis height adjustment.

[0028] When the structure is set, the lifting moving block 4 is a cylindrical structure, and a sealing ring is arranged in the outer ring groove to ensure sealing. A sealing ring is arranged in the ring groove of the outer ring of the piston 8 to ensure sealing.

[0029] When the control component controls the motor 12 to rotate in the opposite direction, the motor 12 is configured to be able to drive the worm 11 to move upward through the turbine 13, and the worm 11 pulls the piston 8 to move upward, and the oil in the second hydraulic chamber 2 flows back to the first hydraulic chamber 14 through the third pipeline, the lifting moving block 4 moves downward, and the shock absorber 5 moves downward, completing the lowering of the vehicle chassis. When the vehicle chassis height adjustment structure completes the lowering of the vehicle chassis, the ball valve 19 opens, the first one-way valve 18 and the second one-way valve 17 close, and the oil in the second hydraulic chamber 2 enters the first hydraulic chamber 14. With the above structure, the operator only needs to issue a command to the control component to conveniently achieve the lowering of the chassis.

[0030] The automobile chassis height adjustment structure described in the present invention, when the structure is set, the steering knuckle is the basis for setting the corresponding components, the steering knuckle 1 is provided with a second hydraulic chamber 2 and an adjustment chamber 3, and also includes a first hydraulic chamber 14, the oil can be switched in different chambers, and the motor drives the turbine to rotate, drives the meshing worm, and realizes the control of the piston by the turbine worm mechanism. The first control valve, the second control valve, and the manual regulating valve can realize on-off control as needed. When adjusting the automobile chassis (raising or lowering), if the chassis needs to be raised, the motor 12 is controlled to rotate forwardly through the control component, the motor 12 drives the worm 11 to move downward through the turbine 13, the worm 11 pushes the piston 8 to move downward, the oil in the adjustment chamber 3 enters the second hydraulic chamber 2 through the second pipeline 7, the oil pushes the lifting moving block 4 in the second hydraulic chamber 2 to move upward, and pushes the shock absorber 5 to move upward, and the automobile chassis is raised. During the process of raising the chassis, the first control valve 18 is opened, the second control valve 17 is closed, the oil in the first hydraulic chamber 14 enters the regulating chamber 3, and the oil supply is realized for the regulating chamber 3. The second control valve 17 is opened again, the first control valve 18 is closed again, and then the piston 8 moves downward to squeeze the oil in the regulating chamber 3, and the oil in the regulating chamber 3 enters the second hydraulic chamber 2 through the second pipeline 17. In this way, the chassis raising is reliably realized. If the chassis needs to be lowered, when the control component controls the motor 12 to rotate in the opposite direction, the motor 12 drives the worm 11 to move upward through the turbine 13, and the worm 11 pulls the piston 8 to move upward, and the oil in the second hydraulic chamber 2 flows back to the first hydraulic chamber 14 through the third pipeline, the lifting moving block 4 moves downward, and the shock absorber 5 moves downward, and the automobile chassis is lowered. During the process of lowering the automobile chassis, the ball valve 19 is opened, the first check valve 18 and the second check valve 17 are closed, and the oil in the second hydraulic chamber 2 enters the first hydraulic chamber 14 to complete the oil return. In this way, by repeating the above steps, the chassis adjustment can be completed conveniently and quickly, and the chassis height can be adjusted at any time, with simple operation, reliable adjustment and safe performance.

[0031] The present invention is described exemplarily above in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A vehicle chassis height adjustment structure, characterized in that: A second hydraulic chamber (2) and an adjusting chamber (3) are arranged inside the steering knuckle (1); a lifting moving block (4) is arranged inside the second hydraulic chamber (2); the upper part of the lifting moving block (4) is connected to a shock absorber (5); the shock absorber (5) is installed in a guide sleeve (6) on the steering knuckle (1); the second hydraulic chamber (2) is connected to the adjusting chamber (3) through a second pipeline (7); a piston (8) is arranged inside the adjusting chamber (3); a piston rod (9) of the piston (8) extends to an upper chamber (10); a worm gear (11) is arranged on the upper part of the piston rod (9); a motor (12) is installed in the upper chamber (10); a turbine (13) is installed on the rotating shaft of the motor (12); and the turbine (13) meshes with the worm gear (11).

2. The automobile chassis height adjustment structure according to claim 1, characterized in that: A first hydraulic chamber (14) is also provided inside the steering knuckle (1); the first hydraulic chamber (14) is connected to the regulating chamber (3) via a first pipeline (15); and the first hydraulic chamber (14) is connected to the second hydraulic chamber (2) via a third pipeline (16).

3. The automobile chassis height adjustment structure according to claim 2, characterized in that: A second control valve (17) is arranged on the second pipeline (7), a first control valve (18) is arranged on the first pipeline (15), and a ball valve (19) is arranged on the third pipeline (16).

4. The automobile chassis height adjustment structure according to claim 1 or 2, characterized in that: The steering knuckle (1) is connected to the wheel hub (20), and the shock absorber (5) is connected to the vehicle frame.

5. The automobile chassis height adjustment structure according to claim 3 is characterized in that: The motor (12), the first control valve (18) and the second control valve (17) are respectively connected to control components.

6. The automobile chassis height adjustment structure according to claim 3, characterized in that: When the control component controls the motor (12) to rotate in the forward direction, the motor (12) is configured to be able to drive the worm (11) to move downward through the turbine (13), and the worm (11) pushes the piston (8) to move downward, and the oil in the adjustment chamber (3) enters the second hydraulic chamber (2) through the second pipeline (7), and the oil pushes the lifting moving block (4) in the second hydraulic chamber (2) to move upward, pushing the shock absorber (5) to move upward, thereby completing the height adjustment of the vehicle chassis.

7. The automobile chassis height adjustment structure according to claim 3, characterized in that: When the control component controls the motor (12) to rotate in the opposite direction, the motor (12) is configured to be able to drive the worm (11) to move upward through the turbine (13), the worm (11) pulls the piston (8) to move upward, the oil in the second hydraulic chamber (2) flows back to the first hydraulic chamber (14) through the third pipeline (16), the lifting moving block (4) moves downward, and the shock absorber (5) moves downward, thereby completing the lowering of the vehicle chassis.

8. The automobile chassis height adjustment structure according to claim 6, characterized in that: When the automobile chassis height adjustment structure completes the adjustment of the automobile chassis, the first control valve (18) is opened, the second control valve (17) is closed, the oil in the first hydraulic chamber (14) enters the adjustment chamber (3), the second control valve (17) is opened again, the first control valve (18) is closed again, and the oil in the adjustment chamber (3) enters the second hydraulic chamber (2) through the second pipeline (17).

9. The automobile chassis height adjustment structure according to claim 7, characterized in that: When the automobile chassis height adjustment structure completes lowering the automobile chassis, the ball valve (19) opens, the first one-way valve (18) and the second one-way valve (17) close, and the oil in the second hydraulic chamber (2) enters the first hydraulic chamber (14).

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