An X-shaped vehicle body height adjustment system and method

Abstract

This invention discloses an X-shaped vehicle body height adjustment system and method, relating to the field of vehicle shock absorption technology. It includes a first and second parallel running track, with a first and second shock absorber arranged in an X-shape between them, rotatably connected at their intersection. One end of the first shock absorber engages with the first running track via a main sliding positioning mechanism, while the other end of the first shock absorber engages with the second running track, and the second shock absorber engages with both the first and second running tracks via secondary sliding positioning mechanisms. The main sliding positioning mechanism drives the first shock absorber to move, enabling stepless adjustment of the first and second shock absorbers within a set angle range. This invention achieves stepless vehicle body height adjustment within a certain range through the X-shaped shock absorption structure, expanding the height adjustment range while ensuring vehicle body stability.

Description

Technical Field

[0001] This invention relates to the field of vehicle shock absorption technology, and in particular to an X-type vehicle body height adjustment system and method. Background Technology

[0002] Vehicles are generally equipped with air spring shock absorbers. These absorbers utilize the flexibility of an air cushion to buffer and absorb external vibrations and impacts, providing stable support. By controlling the change in air mass within the air spring—that is, controlling the pressure of the gas inside the spring—the vehicle's suspension height can be adjusted. Air spring shock absorbers can leak, easily leading to reduced or no damping performance. Additionally, internal valve malfunctions, air supply problems, or leaks in connecting pipes can cause the air spring shock absorber's air pressure to become unstable, resulting in vehicle vibration or instability. Air spring shock absorbers also have a limited range of adjustable vehicle height. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an X-type vehicle body height adjustment system and method, which realizes stepless adjustment of the vehicle body within a certain range through an X-type shock absorption structure, expands the height adjustment range, and ensures vehicle body stability.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0005] In a first aspect, embodiments of the present invention provide an X-shaped vehicle height adjustment system, including a first running track and a second running track that are parallel to each other, a first shock absorber and a second shock absorber arranged in an X-shape between the first running track and the second running track, and the first shock absorber and the second shock absorber being rotatably connected at the intersection.

[0006] One end of the first shock absorber is engaged with the first running track through a main sliding positioning mechanism, and the other end of the first shock absorber is engaged with the second running track, as well as with the second shock absorber and the first and second running tracks, through secondary sliding positioning mechanisms. The main sliding positioning mechanism is used to drive the first shock absorber to move, so that the first and second shock absorbers can be infinitely adjusted within a set angle range.

[0007] As a further implementation, the main sliding positioning mechanism includes a main sliding body, and a first shock absorber is rotatably connected to the main sliding body;

[0008] A drive module is connected between the main sliding body and the first running track.

[0009] As a further implementation, the drive module includes a drive motor and a gear connected to the drive motor, and the inner surface of the first running track is provided with a toothed structure that meshes with the gear.

[0010] As a further implementation, the sliding positioning mechanism includes a sliding body, and the first and second shock absorbers are rotatably connected to the corresponding sliding bodies;

[0011] The sliding body is slidably connected to the first or second running track, and a limiting mechanism is installed between the sliding body and the second running track.

[0012] As a further implementation, the limiting mechanism includes a positioning pin and a lifting component, the sliding body is provided with a limiting groove, and the lifting component is used to push the positioning pin to engage or disengage from the limiting groove.

[0013] As a further implementation, the lifting assembly includes a rotary motor and a camshaft mounted on the rotary motor;

[0014] Multiple positioning pins are evenly arranged along the running direction of the sliding body. When the vertex of the camshaft contacts any positioning pin, the positioning pin engages with the limiting groove.

[0015] As a further implementation, the included angle between the first shock absorber and the second shock absorber is in the range of 30° to 90°.

[0016] As a further implementation, the first and second running tracks are provided with a first limit position at one end and a second limit position at the other end.

[0017] An intermediate fixed position is provided between the first extreme position and the second extreme position.

[0018] Secondly, embodiments of the present invention also provide a vehicle height adjustment method, which, based on the X-type vehicle height adjustment system, allows the vehicle to be maintained at any position between the lowest vehicle state and the highest vehicle state.

[0019] The process of adjusting the highest vehicle body height is as follows: the main sliding positioning mechanism drives one end of the first shock absorber to move toward the fixed middle position, while the other end of the first shock absorber and both ends of the second shock absorber follow the sliding positioning mechanism to move toward the fixed middle position; when the first shock absorber and the second shock absorber reach the minimum angle within the set angle range, the vehicle body height reaches the highest state.

[0020] The process of adjusting the lowest vehicle body height is as follows: the main sliding positioning mechanism drives one end of the first shock absorber to move away from the fixed position in the middle. At the same time, the other end of the first shock absorber and both ends of the second shock absorber follow the sliding positioning mechanism to move away from the fixed position in the middle. When the angle between the first shock absorber and the second shock absorber reaches the maximum of the set angle range, the vehicle body height reaches the lowest state.

[0021] As a further implementation, when the first and second shock absorbers move to any position, they are limited by the engagement of the positioning pin and the limiting groove; when the positions of the first and second shock absorbers are changed, the positioning pin disengages from the limiting groove.

[0022] The beneficial effects of this invention are as follows:

[0023] (1) The vehicle height adjustment system based on the X-type shock absorption structure of the present invention can be infinitely adjusted within a set range, expanding the vehicle height adjustment range; and can ensure stable switching of vehicle height state. Compared with air spring shock absorbers, it can reduce the shaking and noise caused by air inflation.

[0024] (2) The X-type shock absorption structure of the present invention includes a first shock absorber and a second shock absorber rotatably connected at the intersection. One end of the first shock absorber is connected to the main sliding positioning mechanism, and the other end of the first shock absorber and both ends of the second shock absorber are respectively connected to the secondary sliding positioning mechanism. The first shock absorber and the second shock absorber move synchronously under the cooperation of the main sliding positioning mechanism and the secondary sliding positioning mechanism. By setting the intermediate fixed position and the end limit position on two parallel running tracks, the movement range of the shock absorber is limited, so that the vehicle height can be adjusted within a certain range to ensure running stability.

[0025] (3) The present invention provides a limiting mechanism from the sliding positioning mechanism so that the vehicle height can be stably guaranteed at the lowest position, the highest position or any position between the highest and lowest positions, and will not change due to vehicle bumps. Attached Figure Description

[0026] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0027] Figure 1 This is a schematic diagram of the X-type vehicle height adjustment system according to one or more embodiments of the present invention;

[0028] Figure 2 This is a schematic diagram of the main sliding positioning mechanism according to one or more embodiments of the present invention;

[0029] Figure 3 This is a schematic diagram of the sliding positioning mechanism structure according to one or more embodiments of the present invention.

[0030] Among them, 1. First running track, 2. Second running track, 3. First extreme position A, 4. Second extreme position A, 5. First extreme position B, 6. Second extreme position B, 7. Intermediate fixed position A, 8. Intermediate fixed position B, 9. First shock absorber, 10. Second shock absorber, 11. Main sliding positioning mechanism, 12. Second slave sliding positioning mechanism, 13. First slave sliding positioning mechanism, 14. Third slave sliding positioning mechanism, 15. First movable shaft, 16. Second movable shaft, 17. Main sliding body, 18. Drive motor, 19. Gear, 20. Toothed structure, 21. Slave sliding body, 22. Roller, 23. Limiting groove, 24. Positioning pin, 25. Rotary motor, 26. Camshaft, 27. Vertex. Detailed Implementation

[0031] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] Example 1:

[0033] This embodiment provides an X-type vehicle height adjustment system, which adds a set of rails to the vehicle body and chassis subframe, and sets an X-shaped shock absorber structure between the rails. The vehicle height can be adjusted by adjusting the X-shaped shock absorber structure.

[0034] Specifically, a first running rail 1 is installed on the underside of the vehicle body, and a second running rail 2 is installed on the upper side of the chassis subframe, with the first running rail 1 and the second running rail 2 parallel to each other; the X-type shock absorber structure consists of a first shock absorber 9 and a second shock absorber 10 arranged in a cross configuration. Figure 1 In the directions shown, the left end of the first running track 1 is the first extreme position A3, the right end of the first running track 1 is the second extreme position A4, and the middle of the first running track 1 is the middle fixed position A7; the left end of the second running track 2 is the first extreme position B5, the right end of the second running track 2 is the second extreme position B6, and the middle of the second running track 2 is the middle fixed position B8.

[0035] The first shock absorber 9 and the second shock absorber 10 can be infinitely adjusted within a set angle range. When the tops of the first shock absorber 9 and the second shock absorber 10 are located on both sides of the middle fixed position A7, and the bottoms of the first shock absorber 9 and the second shock absorber 10 are located on both sides of the middle fixed position B8, it is the minimum angle of the above-mentioned set angle range, and the vehicle body is at its highest position. When the top of the first shock absorber 9 is located at the first limit position A3, the top of the second shock absorber 10 is located at the second limit position A4, the bottom of the first shock absorber 9 is located at the second limit position B6, and the bottom of the second shock absorber 10 is located at the first limit position B5, it is the maximum angle of the above-mentioned set angle range, and the vehicle body is at its lowest position.

[0036] In this embodiment, the minimum angle between the first shock absorber 9 and the second shock absorber 10 is 30° and the maximum angle is 90°, that is, the first shock absorber 9 and the second shock absorber 10 can be adjusted within the range of 30° to 90°.

[0037] like Figure 1 As shown, the top of the first shock absorber 9 engages with the first running track 1 via a main sliding positioning mechanism 11, and the bottom of the first shock absorber 9 engages with the second running track 2 via a first secondary sliding positioning mechanism 13. The top of the second shock absorber 10 engages with the first running track 1 via a second secondary sliding positioning mechanism 12, and the bottom of the second shock absorber 10 engages with the second running track 2 via a third secondary sliding positioning mechanism 14. Furthermore, the first shock absorber 9 and the second shock absorber 10 are rotatably connected at their intersection. While the main sliding positioning mechanism 11 drives the top of the first shock absorber 9 to move, the bottom of the first shock absorber 9 and the top and bottom of the second shock absorber 10 move in tandem to achieve vehicle height adjustment.

[0038] In this embodiment, the middle intersection of the first shock absorber 9 and the second shock absorber 10 is hinged by a rotating shaft, so that the X-shaped shock absorption structure can move around the intersection center during the angle change, thereby achieving positioning during the movement and avoiding displacement and deformation.

[0039] The main sliding positioning mechanism 11 serves as the driving end, enabling the top end of the first shock absorber 9 to move linearly along the first running track 1. The main sliding positioning mechanism 11 includes a main sliding body 17 and a driving module. The top end of the first shock absorber 9 is rotatably connected to the main sliding body 17 via a first movable shaft 15. The driving module drives the main sliding body 17 to move along the first running track 1. Figure 2 As shown, the drive module of this embodiment includes a drive motor 18 and a gear 19. The gear 19 is mounted on the motor shaft. In order to cooperate with the gear 19, the inner surface of the first running track 1 is provided with a tooth structure 20 that is adapted to the gear 19. The movement of the main sliding body 17 is realized under the meshing action of the tooth structure 20 and the gear 19.

[0040] All the sliding positioning mechanisms have the same structure. Taking the sliding positioning mechanism connected to the bottom of the first shock absorber 9 as an example, a detailed description will be given:

[0041] like Figure 3 As shown, the sliding positioning mechanism includes a sliding body 21, and a first shock absorber 9 is rotatably connected to the sliding body 21 via a second movable shaft 16. The sliding body 21 is slidably connected to the second running track 2, and the slidable connection can be achieved by the movement of rollers 22 along the second running track 2. In this embodiment, two sets of rollers 22 are provided at the bottom of the sliding body 21, and the two sets of rollers 22 are located close to the edge of the sliding body 21.

[0042] A limiting mechanism is installed between the sliding body 21 and the second running track 2. This limiting mechanism has two sets of rollers 22 between them. After the sliding body 21 moves to the corresponding position, the limiting mechanism can prevent further movement, allowing the first shock absorber 9 and the second shock absorber 10 to be maintained at any angle within a set angle range, thus achieving stepless adjustment. Figure 3 As shown, the limiting mechanism includes a positioning pin 24 and a lifting component. A limiting groove 23 is provided on the sliding body 21. The lifting component is used to push the positioning pin 24 to engage with or disengage from the limiting groove 23.

[0043] The limiting groove 23 is opened to a certain depth along the bottom surface of the sliding body 21 and is consistent with the length of the sliding body 21, so as to ensure the limiting effect on the sliding body 21.

[0044] In this embodiment, the lifting assembly includes a rotary motor 25 and a camshaft 26 mounted on the rotary motor 25. The camshaft 26 rotates under the drive of the rotary motor 25. Positioning pins 24 are located on the upper side of the camshaft 26, and multiple positioning pins 24 are evenly distributed along the length of the second running track 2. The positioning pins 24 pass vertically through the second running track 2, and their bottom ends contact the camshaft 26. As the camshaft 26 rotates with the motor shaft of the rotary motor 25, it pushes the positioning pins 24 up and down. When the apex 27 of the camshaft 26 rotates to the position corresponding to the limiting groove 23, i.e., the highest position, the positioning pins 24 are fully inserted into the limiting groove 23. At this time, the rotary motor 25 stops, thus limiting the movement of the sliding body 21. When the sliding body 21 needs to continue moving, the rotary motor 25 drives the camshaft 26 to rotate, causing the apex 27 of the camshaft 26 to descend until the positioning pins 24 are completely disengaged from the limiting groove 23. When the positioning pin 24 at the next position is inserted into the limiting groove 23, the position is locked.

[0045] It should be noted that in this embodiment, the main sliding body 17 and the secondary sliding body 21 are sliding components, such as sliders.

[0046] This embodiment uses a limiting mechanism to ensure that the vehicle height is stably maintained at the lowest position, the highest position, or any position between the highest and lowest positions, without changing due to vehicle vibration.

[0047] This embodiment is based on an X-type shock absorber structure for vehicle height adjustment, which can be infinitely adjusted within a set range, expanding the range of vehicle height adjustment; and can ensure stable switching of vehicle height status. Compared with air spring shock absorbers, it can reduce the shaking and noise caused by inflation.

[0048] Example 2:

[0049] This embodiment provides a vehicle height adjustment method based on the X-type vehicle height adjustment system described in Embodiment 1, which allows the vehicle to be maintained at any position between the lowest and highest vehicle states; and the vehicle height adjustment is controlled by the central control system.

[0050] The process of adjusting the vehicle's highest vehicle body status is as follows:

[0051] The central control system sends a signal to the drive motor 18 of the main sliding positioning mechanism 11. Under the action of the gear 19 and the toothed structure 20 of the first running track 1, the top of the first shock absorber 9 moves along the first running track 1 towards the middle fixed position A7 with the main sliding body 17. Since the first shock absorber 9 and the second shock absorber 10 are rotatably connected (e.g., hinged) at the intersection, the bottom of the first shock absorber 9 and the top and bottom of the second shock absorber 10 move simultaneously. Among them, the top of the second shock absorber 10 moves towards the middle fixed position A7, and the bottom of the first shock absorber 9 and the bottom of the second shock absorber 10 move towards the middle fixed position B8. During the movement, the positioning pin 24 is in a state of disengagement from the limiting groove 23.

[0052] When the top (bottom) ends of the first shock absorber 9 and the second shock absorber 10 are closest, that is, when the two reach the minimum included angle, the vehicle body reaches its highest position; the rotating motor 25 controls the positioning pin 24 to lift up and engage with the limiting groove 23 to achieve position locking.

[0053] The minimum vehicle body condition adjustment process is as follows:

[0054] The central control system sends a signal to the drive motor 18 of the main sliding positioning mechanism 11. Under the action of the gear 19 and the toothed structure 20 of the first running track 1, the top of the first shock absorber 9 moves along the first running track 1 towards the first extreme position A3 along with the main sliding body 17; simultaneously, the top of the second shock absorber 10 moves towards the second extreme position A4, the bottom of the first shock absorber 9 moves towards the second extreme position B6, and the bottom of the second shock absorber 10 moves towards the first extreme position B5. During the movement, the positioning pin 24 is in a disengaged state from the limiting groove 23.

[0055] When the top and bottom ends of the first shock absorber 9 and the second shock absorber 10 are at their farthest distance (moving to the corresponding limit position), that is, when the two reach the maximum included angle, the vehicle body reaches the lowest position; the rotating motor 25 controls the positioning pin 24 to lift up and engage with the limit groove 23 to achieve position locking.

[0056] When the vehicle body height needs to be maintained between the lowest and highest positions, the X-shaped shock absorber structure can be moved to the corresponding position by the cooperation of the main sliding positioning mechanism 11 and the secondary sliding positioning mechanism, and then the positioning pin 24 and the limiting groove 23 are used for limiting.

[0057] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An X-shaped vehicle body height adjustment system, characterized in that, It includes a first running track and a second running track that are parallel to each other. A first shock absorber and a second shock absorber are arranged in an X-shape between the first running track and the second running track. The first shock absorber and the second shock absorber are rotatably connected at the intersection. One end of the first shock absorber is engaged with the first running track through a main sliding positioning mechanism, and the other end of the first shock absorber is engaged with the second running track, as well as with the second shock absorber and the first and second running tracks, respectively, through secondary sliding positioning mechanisms; the main sliding positioning mechanism is used to drive the first shock absorber to move, so that the first and second shock absorbers can be infinitely adjusted within a set angle range; The sliding positioning mechanism includes a sliding body, and the first shock absorber and the second shock absorber are rotatably connected to the corresponding sliding body; the sliding body is slidably connected to the first running track or the second running track, and a limiting mechanism is installed between the sliding body and the second running track; The limiting mechanism includes a positioning pin and a lifting assembly. The sliding body is provided with a limiting groove. The lifting assembly is used to push the positioning pin to engage or disengage from the limiting groove. The lifting assembly includes a rotating motor and a camshaft mounted on the rotating motor. Multiple positioning pins are evenly arranged along the running direction of the sliding body. When the apex of the camshaft contacts any positioning pin, the positioning pin engages with the limiting groove.

2. The X-type vehicle height adjustment system according to claim 1, characterized in that, The main sliding positioning mechanism includes a main sliding body, and a first shock absorber is rotatably connected to the main sliding body. A drive module is connected between the main sliding body and the first running track.

3. The X-type vehicle height adjustment system according to claim 2, characterized in that, The drive module includes a drive motor and a gear connected to the drive motor, and the inner surface of the first running track is provided with a toothed structure that meshes with the gear.

4. The X-type vehicle height adjustment system according to claim 1, characterized in that, The included angle between the first shock absorber and the second shock absorber ranges from 30° to 90°.

5. An X-type vehicle body height adjustment system according to claim 1 or 4, characterized in that, The first and second running tracks are provided with a first limit position at one end and a second limit position at the other end; An intermediate fixed position is provided between the first extreme position and the second extreme position.

6. A method for adjusting vehicle body height, characterized in that, Based on the X-type vehicle height adjustment system as described in any one of claims 1-5, the vehicle body can be kept at any position between the lowest vehicle body state and the highest vehicle body state; The process of adjusting the highest vehicle body height is as follows: the main sliding positioning mechanism drives one end of the first shock absorber to move toward the fixed middle position, while the other end of the first shock absorber and both ends of the second shock absorber follow the sliding positioning mechanism to move toward the fixed middle position; when the first shock absorber and the second shock absorber reach the minimum angle within the set angle range, the vehicle body height reaches the highest state. The process of adjusting the lowest vehicle body height is as follows: the main sliding positioning mechanism drives one end of the first shock absorber to move away from the fixed position in the middle. At the same time, the other end of the first shock absorber and both ends of the second shock absorber follow the sliding positioning mechanism to move away from the fixed position in the middle. When the angle between the first shock absorber and the second shock absorber reaches the maximum of the set angle range, the vehicle body height reaches the lowest state.

7. A method for adjusting vehicle height according to claim 6, characterized in that, When the first and second shock absorbers move to any position, they are limited by the engagement of the positioning pin and the limiting groove; when the positions of the first and second shock absorbers are changed, the positioning pin disengages from the limiting groove.

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