Adjustable suspension assembly for automobile

Abstract

The invention relates to the technical field of automobile suspension, in particular to an adjustable suspension assembly for an automobile. Comprising a wheel and a frame plate, a wheel connecting plate is arranged on the inner side of the wheel, a damping mechanism is arranged on the wheel connecting plate, and the damping mechanism is composed of a first damping cylinder and a second damping cylinder. According to the scheme, by arranging the multiple auxiliary damping springs, the compression degree of the multiple auxiliary damping springs can be adjusted according to the lifting amplitude of the wheels, so that the situation that the ground is touched when the vibration amplitude is large can be prevented, and when small vibration is met, deformation of the multiple auxiliary damping springs is small, and hanging cannot be affected; and the suspension of the vehicle is kept soft so as to adapt to different road conditions. And through arrangement of hydraulic oil and a damping piston, when the wheels vibrate, a second damping cylinder can move upwards, at the moment, the hydraulic oil can move towards the lower portion of the damping piston through a hole channel, and a preliminary damping effect on vibration is achieved through friction force generated by the viscosity of the hydraulic oil.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile suspension, in particular to an adjustable suspension component for an automobile. Background Art

[0002] Traditional automotive suspension systems have significant limitations when responding to impacts from varying road surfaces. Fixed damping designs cannot balance comfort and bottoming-out prevention. A suspension that's too soft can easily bottom out in deep potholes and damage the chassis, while a suspension that's too stiff can lead to a bumpy and uncomfortable ride. Existing electronically adjustable suspensions (such as electromagnetic damping) can be dynamically adjusted, but they suffer from high costs and response delays (10-50ms). Mechanical adaptive shock absorbers, on the other hand, have a limited adjustment range. The market urgently needs a low-cost, purely mechanical intelligent suspension solution that can instantly (less than 5ms) switch damping modes based on impact depth: maintaining softness for improved comfort on small bumps and automatically stiffening to prevent bottoming out in deep potholes, all without relying on electronic systems.

[0003] In order to adjust the degree of suspension hardness of a vehicle when facing different road conditions, an adjustable suspension component for an automobile is proposed. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an adjustable suspension assembly for an automobile to solve the problems raised in the above background technology.

[0005] An adjustable suspension assembly for an automobile includes a wheel and a frame plate. A wheel connecting plate is provided on the inner side of the wheel. A shock absorbing mechanism is provided on the wheel connecting plate. The shock absorbing mechanism consists of a first shock absorbing cylinder and a second shock absorbing cylinder. An adjustment cylinder is provided on the second shock absorber cylinder, and an adjustment mechanism is provided inside the adjustment cylinder. The adjustment mechanism can adjust the softness and hardness of the suspension component. The adjustment mechanism includes a rotating cylinder installed in the adjustment cylinder, and an adjustment shaft is provided on the wheel connecting plate. The vibration amplitude of the wheel when driving is transmitted to the rotating cylinder through the adjustment shaft.

[0006] Preferably, the first shock absorber cylinder is arranged above the wheel connecting plate, the second shock absorber cylinder is arranged on the inner side of the first shock absorber cylinder and is slidingly connected to the first shock absorber cylinder, and a main shock absorber spring is provided at the inner bottom of the first shock absorber cylinder.

[0007] Preferably, hydraulic oil is provided in the second shock-absorbing cylinder, a shock-absorbing piston is provided in the second shock-absorbing cylinder, a channel is opened on the shock-absorbing piston, and a compression valve is also provided on the shock-absorbing piston. The hydraulic oil can pass through the compression valve in one direction, and the hydraulic oil can only pass through the compression valve when it moves upward from the shock-absorbing piston.

[0008] Preferably, a reserved opening is provided on the adjusting cylinder, and the depth of the reserved opening is the distance that the adjusting cylinder can slide relative to the second shock-absorbing cylinder.

[0009] Preferably, a driving member is fixedly connected to the lower center of the rotating drum, and the driving member is arranged in a hollow cylindrical manner. An active push shaft is provided on the adjusting shaft, and the adjusting shaft is located at the center of the driving member and can move up and down relative to the driving member. An arc-shaped guide groove is provided in the driving member, and the active push shaft is slidably connected to the inner side wall of the guide groove. The up and down movement of the adjustment shaft can drive the driving member to rotate through the guide groove.

[0010] Preferably, a first support plate and a plurality of second support plates are provided in the rotating drum; A lower pressure plate is fixedly connected to the bottom of the frame plate, and the lower pressure plate can slide along the setting direction of the adjustment cylinder. The first support plate and multiple second support plates are connected to the lower pressure plate through multiple auxiliary shock-absorbing springs, and a telescopic shaft for guidance is also provided between the two.

[0011] Preferably, the auxiliary shock-absorbing spring connected to the first support plate is in a compressed state in the initial state, and the auxiliary shock-absorbing spring connected to the second support plate can be regarded as a state without stress in the initial state.

[0012] Preferably, a regulating groove is provided in the rotating drum, and a regulating shaft is provided on the second support plate. The regulating shaft is slidingly connected to the inner side wall of the regulating groove. The regulating groove consists of an inclined section and a flat section. When the rotating drum rotates, the multiple second support plates will be lifted in turn through the provided flat section.

[0013] The beneficial effects of the present invention are: 1. This solution sets up multiple auxiliary shock-absorbing springs, which can adjust the compression degree of the multiple auxiliary shock-absorbing springs according to the amplitude of the wheel lifting and lowering, thereby preventing the vehicle from bottoming out when the vibration amplitude is large. In addition, when encountering smaller vibrations, the deformation of the multiple auxiliary shock-absorbing springs is small, which will not affect the suspension, so that the vehicle's suspension remains soft and adapts to different road conditions.

[0014] 2. This solution uses the hydraulic oil and shock-absorbing piston to move the second shock-absorbing cylinder upward when the wheel vibrates. At this time, the hydraulic oil will move to the bottom of the shock-absorbing piston through the channel, and the friction generated by the viscosity of the hydraulic oil will have a preliminary shock-absorbing effect on the vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a cross-sectional view of the second shock-absorbing cylinder and the adjustment cylinder in the present invention; Figure 3 Schematic diagram of the structure of the shock-absorbing piston in the present invention; Figure 4It is a schematic structural diagram of the regulating drum and the rotating drum of the present invention; Figure 5 It is a structural schematic diagram of the driving member and the guide groove of the present invention; Figure 6 A schematic diagram of the positions of the first support plate and the second support plate of the present invention; Figure 7 Schematic diagram of the position of the flat sections of different regulating grooves in the present invention; Figure 8 It is a cross-sectional view of the rotary drum of the present invention.

[0016] In the picture: 1. Wheel; 2. Wheel connecting plate; 3. First shock absorber cylinder; 4. Frame plate; 5. Second shock absorber cylinder; 6. Main shock absorber spring; 7. Adjusting shaft; 8. Adjusting cylinder; 9. Lower pressure plate; 10. Reserved opening; 11. Shock absorber piston; 12. Channel; 13. Compression valve; 14. Rotating cylinder; 15. Driving member; 16. Active thrust shaft; 17. Guide groove; 18. First support plate; 19. Second support plate; 20. Adjusting groove; 21. Adjusting shaft; 22. Telescopic shaft; 23. Auxiliary shock absorber spring. DETAILED DESCRIPTION

[0017] The following will refer to the attached Figures 1 to 8 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Example 1

[0018] An adjustable suspension assembly for an automobile includes a wheel 1 and a frame plate 4. A wheel connecting plate 2 is provided on the inner side of the wheel 1. A shock absorbing mechanism is provided on the wheel connecting plate 2. The shock absorbing mechanism is used to provide initial shock absorption when the wheel 1 vibrates. The shock absorbing mechanism is composed of a first shock absorbing cylinder 3 and a second shock absorbing cylinder 5. Refer to the attached Figure 1 The first shock-absorbing cylinder 3 is disposed above the wheel connecting plate 2, and the second shock-absorbing cylinder 5 is disposed inside the first shock-absorbing cylinder 3 and is slidably connected to the first shock-absorbing cylinder 3. A main shock-absorbing spring 6 is provided at the inner bottom of the first shock-absorbing cylinder 3. When the vehicle travels over an uneven road section, the main shock-absorbing spring 6 provides preliminary shock absorption. The adjustment cylinder 8 is provided with a reserved opening 10. The depth of the reserved opening 10 determines the distance the adjustment cylinder 8 can slide relative to the second shock-absorbing cylinder 5.

[0019] Hydraulic oil is provided in the second shock-absorbing cylinder 5, and a shock-absorbing piston 11 is provided in the second shock-absorbing cylinder 5. A channel 12 is opened on the shock-absorbing piston 11, and a compression valve 13 is also provided on the shock-absorbing piston 11. The hydraulic oil can pass through the compression valve 13 in one direction. The hydraulic oil can pass through the compression valve 13 only when it moves upward from the shock-absorbing piston 11.

[0020] Refer to the attached Figure 2 Under normal conditions, the shock-absorbing piston 11 is in the middle position of the second shock-absorbing cylinder 5. The advantage of this arrangement is that when the vehicle passes over a raised area on the ground or other circumstances cause the wheel connecting plate 2 to move upward, the second shock-absorbing cylinder 5 moves upward. When the second shock-absorbing cylinder 5 moves upward, the shock-absorbing piston 11 moves downward relative to the second shock-absorbing cylinder 5. The hydraulic oil below the shock-absorbing piston 11 will flow to the top of the shock-absorbing piston 11 through the channel 12. The hydraulic oil has a certain viscosity, and it will generate damping when it flows, forming a damping force, which can absorb more vibrations.

[0021] The compression valve 13 is provided so that when the vehicle encounters a large vibration, which causes the shock-absorbing piston 11 to move down or up a large distance, the flow speed of the hydraulic oil in the channel 12 is slow. At this time, the compression valve 13 will be opened, and the oil will flow through the compression valve 13 to the top of the shock-absorbing piston 11, thereby preventing the shock-absorbing piston 11 from being damaged when it is subjected to a large force.

[0022] A retaining spring is provided between the adjustment cylinder 8 and the wheel connecting plate 2. This retaining spring is used to reset the adjustment cylinder 8 after the adjustment cylinder 8 is moved by pressure. This facilitates resetting the position of the shock absorbing piston 11 after the shock absorbing piston 11 moves relative to the second shock absorbing cylinder 5. This is a conventional reset technique and will not be further explained. Example 2

[0023] Refer to the attached Figure 5 The second shock absorber cylinder 5 is provided with an adjusting cylinder 8, and an adjusting mechanism is provided in the adjusting cylinder 8. The adjusting mechanism can adjust the softness and hardness of the suspension component. The adjusting mechanism includes a rotating cylinder 14 installed in the adjusting cylinder 8. The wheel connecting plate 2 is provided with an adjusting shaft 7. The vibration amplitude of the wheel 1 during driving is directly transmitted to the rotating cylinder 14 through the adjusting shaft 7.

[0024] Specifically, when the vehicle passes through a pothole section, in addition to the initial shock absorption in Example 1, the adjustment shaft 7 will directly transmit the vibration amplitude to the driving member 15. Specifically, when the adjustment shaft 7 vibrates, it will move up or down relative to the rotating drum 14.

[0025] Refer to the attached Figure 4 and attached Figure 6A first support plate 18 and multiple second support plates 19 are provided in the rotating cylinder 14, and the first support plate 18 is slidably connected to the inner wall of the rotating cylinder 14 (the first support plate 18 and multiple second support plates 19 can only move up and down under the action of the telescopic shaft 22). The bottom of the frame plate 4 is fixedly connected to a lower pressure plate 9, and the lower pressure plate 9 can slide along the setting direction of the adjustment cylinder 8. The first support plate 18 and multiple second support plates 19 are connected to the lower pressure plate 9 through multiple auxiliary shock-absorbing springs 23, and a telescopic shaft 22 for guidance is also provided between the two.

[0026] The weight of the vehicle body will be transferred to the lower pressure plate 9, and the telescopic shaft 22 set here will play a guiding role. The lower pressure plate 9 will be shock-absorbed by the auxiliary shock-absorbing spring 23 connected to the first support plate 18. Among them, the multiple auxiliary shock-absorbing springs 23 connected to the second support plate 19 will adjust their hardness according to the degree of vibration.

[0027] The auxiliary shock-absorbing spring 23 connected to the first support plate 18 is in a compressed state in the initial state, and the auxiliary shock-absorbing spring 23 connected to the second support plate 19 can be regarded as a state without stress in the initial state, and does not play a supporting role on the lower pressure plate 9, so that the vehicle can still ensure the comfort of the suspension when it is subjected to a smaller impact. An adjusting groove 20 is provided in the rotating drum 14, and an adjusting shaft 21 is provided on the second support plate 19. The adjusting shaft 21 is slidably connected to the inner side wall of the adjusting groove 20, and the adjusting groove 20 is composed of an inclined section and a gentle section. When the rotating drum 14 rotates, the adjusting shaft 21 will slide in the adjusting groove 20, and when the rotating drum 14 rotates, the height of the multiple second support plates 19 will be raised through the set adjusting groove 20. In addition, through the set inclined section and gentle section, refer to the attached Figure 7 -Attached Figure 8 When the flat section of the regulating groove 20 is positioned differently, during the initial rotation of the drum 14, the first second support plate 19 will move upward along the inclined section of the regulating groove 20, while the second second support plate 19 will move along the flat section of the regulating groove 20. At this time, the second support plate 19 will not move upward. This ensures that the multiple second support plates 19 will move upward sequentially according to the vibration amplitude to adjust the softness or hardness of the suspension. Then, when the first second support plate 19 reaches its highest position, the second support plate 19 will move along the flat section of the regulating groove 20, while the second second support plate 19 will move upward along the inclined section of the regulating groove 20. This also ensures that there will be no motion interference when the multiple second support plates 19 move upward sequentially.

[0028] When the driving member 15 rotates, the multiple second support plates 19 will be lifted in sequence through the set flat section, so that the multiple auxiliary shock-absorbing springs 23 will be compressed according to the degree of impact, playing a shock-absorbing role. In this way, the hardness of the suspension can be adjusted according to different impact degrees to avoid bottoming out.

[0029] When the vehicle passes through a road section with a large degree of unevenness, the distance that the active push shaft 16 moves upward will become larger, and then the driving member 15 will rotate through the arc-shaped guide groove 17, and the rotation of the driving member 15 will cause the rotating drum 14 to rotate. Figure 5 -Attached Figure 6 Therefore, under the action of the different regulating grooves 20, the multiple second support plates 19 are moved upward in sequence, so that the multiple auxiliary shock-absorbing springs 23 connected to the second support plates 19 are compressed. When the wheel 1 vibrates greatly, the auxiliary shock-absorbing springs 23 on the multiple second support plates 19 support the frame plate 4, thereby improving the hardness of the suspension and avoiding bottoming out due to excessive vibration amplitude.

[0030] A driving member 15 is fixedly connected to the center of the rotating drum 14. The driving member 15 is arranged in a hollow cylindrical manner. An active push shaft 16 is provided on the adjusting shaft 7. The adjusting shaft 7 is located at the center of the driving member 15 and can move up and down relative to the driving member 15. An arc-shaped guide groove 17 is provided in the driving member 15 , and the active push shaft 16 is slidably connected to the inner side wall of the guide groove 17 . The up and down movement of the adjustment shaft 7 can drive the driving member 15 to rotate through the guide groove 17 .

[0031] Specifically: when the vehicle is subjected to a small impact during movement, the damping between the hydraulic oil flow pattern and the channel 12 can alleviate the small vibration when the main shock absorber spring 6 and the shock absorber piston 11 in Example 1 move, and after the vehicle travels to a smooth road section, the shock absorber piston 11 will slowly reset through the fixed spring, which will not affect the comfort of the vehicle during driving.

[0032] When the vehicle is subjected to a significant impact during driving, the upward movement of the adjustment shaft 7 increases, causing the adjustment shaft 7 to move upward relative to the shock-absorbing piston 11. As the adjustment shaft 7 moves upward, the guide groove 17 causes the rotating drum 14 to rotate. At this point, the first support plate 18 slides relative to the rotating drum 14, while the movement directions of the other second support plates 19 correspond to the telescopic shaft 22. Under the action of the control groove 20, the second support plates 19 move upward, thereby compressing the auxiliary shock-absorbing spring 23, which is not under stress. The degree of upward movement of the adjustment shaft 7 reflects the degree of impact on the wheel 1. The action of the adjustment shaft 7 drives the multiple second support plates 19 to move upward, thereby increasing the stiffness of the suspension, preventing bottoming out, and ensuring vehicle stability.

[0033] It should be noted that in the description of the present invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. An adjustable suspension assembly for an automobile, characterized in that: It comprises a wheel (1) and a frame plate (4), wherein a wheel connecting plate (2) is provided on the inner side of the wheel (1), and a shock absorbing mechanism is provided on the wheel connecting plate (2), wherein the shock absorbing mechanism comprises a first shock absorbing cylinder (3) and a second shock absorbing cylinder (5); An adjusting cylinder (8) is provided on the second shock-absorbing cylinder (5), and an adjusting mechanism is provided in the adjusting cylinder (8). The adjusting mechanism is capable of adjusting the hardness or softness of the suspension assembly. The adjusting mechanism includes a rotating cylinder (14) installed in the adjusting cylinder (8). An adjusting shaft (7) is provided on the wheel connecting plate (2). The vibration amplitude of the wheel (1) during driving is transmitted to the rotating cylinder (14) via the adjusting shaft (7).

2. The adjustable suspension assembly for a vehicle according to claim 1, characterized in that: The first shock-absorbing cylinder (3) is arranged above the wheel connecting plate (2), the second shock-absorbing cylinder (5) is arranged inside the first shock-absorbing cylinder (3) and is slidably connected to the first shock-absorbing cylinder (3), and a main shock-absorbing spring (6) is provided at the inner bottom of the first shock-absorbing cylinder (3).

3. The adjustable suspension assembly for a vehicle according to claim 1, characterized in that: Hydraulic oil is provided in the second shock-absorbing cylinder (5), a shock-absorbing piston (11) is provided in the second shock-absorbing cylinder (5), a hole (12) is provided on the shock-absorbing piston (11), and a compression valve (13) is also provided on the shock-absorbing piston (11). The hydraulic oil can pass through the compression valve (13) in one direction, and the hydraulic oil can only pass through the compression valve (13) when it moves upward from the shock-absorbing piston (11).

4. The adjustable suspension assembly for a vehicle according to claim 1, characterized in that: A reserved opening (10) is provided on the adjusting cylinder (8), and the depth of the reserved opening (10) is the distance that the adjusting cylinder (8) can slide relative to the second shock-absorbing cylinder (5).

5. The adjustable suspension assembly for a vehicle according to claim 1, characterized in that: A driving member (15) is fixedly connected to a position below the center of the rotating drum (14), and the driving member (15) is arranged in a hollow cylindrical manner. An active push shaft (16) is provided on the adjusting shaft (7). The adjusting shaft (7) is located at the center of the driving member (15) and can move up and down relative to the driving member (15); An arc-shaped guide groove (17) is provided in the driving member (15), and the active push shaft (16) is slidably connected to the inner side wall of the guide groove (17). The upward and downward movement of the adjustment shaft (7) can drive the driving member (15) to rotate through the guide groove (17).

6. The adjustable suspension assembly for a vehicle according to claim 1, characterized in that: A first support plate (18) and a plurality of second support plates (19) are provided in the rotating drum (14); A lower pressure plate (9) is fixedly connected to the bottom of the frame plate (4), and the lower pressure plate (9) can slide along the setting direction of the adjustment cylinder (8). The first support plate (18) and the plurality of second support plates (19) are connected to the lower pressure plate (9) via a plurality of auxiliary shock-absorbing springs (23), and a telescopic shaft (22) for guidance is also provided between the two.

7. The adjustable suspension assembly for a vehicle according to claim 6, characterized in that: The auxiliary shock-absorbing spring (23) connected to the first support plate (18) is in a compressed state in the initial state, and the auxiliary shock-absorbing spring (23) connected to the second support plate (19) can be regarded as a state without stress in the initial state.

8. The adjustable suspension assembly for a vehicle according to claim 1, characterized in that: A regulating groove (20) is provided in the rotating drum (14), and a regulating shaft (21) is provided on the second support plate (19). The regulating shaft (21) is slidably connected to the inner side wall of the regulating groove (20). The regulating groove (20) is composed of an inclined section and a flat section. When the rotating drum (14) rotates, the plurality of second support plates (19) are lifted in sequence through the provided flat section.

Images