A rear suspension lower support compression structure

Abstract

The utility model discloses a kind of rear suspension lower support compression-resistance structures, including frame, rear suspension upper support is fixedly connected in the upper portion of frame, shock absorber is arranged in the lower portion of rear suspension upper support, rear suspension lower support is fixedly connected in the lower portion of shock absorber, rear suspension lower support is fixedly connected in the lower portion of frame, rear suspension lower support and frame junction place are fixedly connected with reinforcing rib, reinforcing rib upper portion is fixedly connected with adjusting shell, servo motor is arranged in adjusting shell, in the utility model, reinforcing rib one side is connected with frame, other side is connected with rear suspension lower support, form stable triangle support, through geometric stability, concentrated load is evenly transmitted to frame, reduce single-point stress concentration, and damping damping mechanism is also arranged in reinforcing rib upper portion, rotating thread groove can be driven to move by starting servo motor, and thread groove rotation can drive threaded rod connected by screw thread to move, realize the fine adjustment of guide rod in horizontal direction.

Description

Technical Field

[0001] This utility model relates to the field of suspension bracket pressure resistance technology, and in particular to a rear suspension lower bracket pressure resistance structure. Background Technology

[0002] The rear lower suspension bracket compression structure is a core component in the vehicle suspension system that ensures driving stability. Its design focuses on achieving efficient load distribution through mechanical optimization and material innovation. This structure uses high-strength alloys or composite materials, combined with topology optimization technology, to improve the compression threshold while ensuring lightweight design. Its mechanical path has been verified through simulation. Through multi-directional stress transmission design, the impact force from the road surface is evenly distributed to the frame to avoid local stress concentration. The compression performance is also achieved through dynamic stiffness matching, which provides longitudinal buffer space while maintaining lateral support and reducing vibration transmission efficiency. This structure must pass bench fatigue testing and real-road durability verification to ensure that it can maintain structural integrity under complex working conditions. As the connection hub between the suspension system and the chassis, its compression design directly affects the vehicle's handling precision and ride comfort. It is a key engineering module for balancing sports performance and safety.

[0003] In the actual use of existing devices, reinforcing ribs are often installed between the rear lower suspension bracket and the vehicle frame to improve connection stability. However, the reinforcing ribs are generally fixed in structure. With changes in vehicle load and different road conditions, the fixed load transmission path is more likely to cause local overload. Therefore, a pressure-resistant structure for the rear lower suspension bracket is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the prior art, multiple reinforcing ribs are installed between the rear lower suspension bracket and the vehicle frame to improve the connection stability. However, the reinforcing ribs are generally fixed in structure. With changes in vehicle load and differences in road conditions, the fixed load transmission path is more likely to cause local overload. Therefore, a pressure-resistant structure for the rear lower suspension bracket is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rear suspension lower bracket anti-compression structure includes a vehicle frame. A rear suspension upper bracket is fixedly connected to the upper part of the vehicle frame. A shock absorber is disposed at the lower part of the rear suspension upper bracket. A rear suspension lower bracket is fixedly connected to the lower part of the shock absorber. A rear suspension lower bracket is fixedly connected to the lower part of the vehicle frame. A reinforcing rib is fixedly connected to the connection between the rear suspension lower bracket and the vehicle frame. An adjustment housing is fixedly connected to the upper part of the reinforcing rib. A servo motor is disposed inside the adjustment housing. A first gear is disposed at the output end of the servo motor. A second gear is meshed with the first gear. The second gear is rotatably connected to the adjustment housing. A threaded groove is fixedly connected to the upper part of the second gear. The threaded groove is rotatably connected to the adjustment housing. A threaded rod is threadedly connected inside the threaded groove. An adjustment plate is fixedly connected to the upper part of the threaded rod. A connecting piece is fixedly connected to the upper part of the adjustment plate and the reinforcing rib. A damping and shock absorption mechanism is rotatably connected to the upper part.

[0007] A reinforcing rib is fixedly connected at the connection between the frame and the rear lower suspension bracket. The reinforcing rib further enhances the connection stability between the frame and the rear lower suspension bracket. A damping and shock absorption mechanism is also set on the reinforcing rib. By starting the servo motor, the threaded groove is rotated, and the rotation of the threaded groove causes the threaded rod of the threaded connection to move, which in turn moves the adjustment plate to adjust the tilt angle of the damping and shock absorption mechanism. Thus, according to the changes in load and road conditions, the position of the adjustment plate is adjusted to optimize the load transmission path and avoid local overload. There are two rear lower suspension brackets, which are respectively set on both sides of the frame.

[0008] The above technical solution further includes:

[0009] Limiting rods are fixedly connected to both sides of the adjusting plate, and the limiting rods are slidably connected to the adjusting housing.

[0010] The upper part of the reinforcing rib is fixedly connected with a positioning pin, and a positioning housing is provided inside the frame. The positioning pin is inserted into the positioning housing to position the reinforcing rib. There are two positioning pins and two positioning housings. The reinforcing rib has mounting holes on both the upper and lower sides.

[0011] An air cavity is provided inside the positioning housing. A wedge-shaped slider is slidably connected to the air cavity. A spring is fixedly connected to the wedge-shaped slider. The positioning housing is fixedly connected to the side of the spring away from the wedge-shaped slider.

[0012] The upper part of the wedge-shaped slider is provided with a locking bead, which is slidably connected to the positioning housing. The wedge-shaped slider has a wedge-shaped structure. When the wedge-shaped slider moves upward, it can compress the locking bead to move inward and lock the positioning pin.

[0013] Two air pumps are installed on one side of the air chamber, with the two air pumps located on the upper and lower sides of the air chamber, respectively.

[0014] The damping and shock absorption mechanism includes a damping shell rotatably connected to the upper part of the connector, a piston slidably connected inside the damping shell, and a damping hole opened on the upper part of the piston.

[0015] A guide rod is fixedly connected to the upper part of the piston, and the guide rod is slidably connected to the damping housing. A connecting piece is rotatably connected to the upper part of the guide rod.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, one side of the reinforcing rib is connected to the frame, and the other side is connected to the rear suspension lower bracket to form a stable triangular support. Through geometric stability, the concentrated load is evenly transferred to the frame, reducing stress concentration at a single point. Moreover, a damping and shock-absorbing mechanism is also provided on the upper part of the reinforcing rib. By starting the servo motor, the threaded groove can be rotated. The rotation of the threaded groove can drive the threaded rod connected by the thread to move. The movement of the threaded rod can drive the adjustment plate to move, realizing the fine adjustment of the guide rod in the horizontal direction and adjusting the tilt angle of the damping and shock-absorbing mechanism. Thus, according to the changes in load and road conditions, the position of the adjustment plate is adjusted to optimize the load transmission path and avoid local overload.

[0018] 2. In this utility model, when installing the reinforcing rib, the positioning pin can be inserted into the positioning housing first. By supplying gas to the bottom of the air chamber through the air pump, the air pressure at the bottom of the wedge-shaped slider can be increased, thereby driving the wedge-shaped slider to move upward. Under the combined action of air pressure and spring, the wedge-shaped slider is driven to move upward, thereby pressing the locking ball to move inward and fix the positioning pin. The reinforcing rib can be positioned before installation, which improves the installation stability and also effectively speeds up the installation efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the rear suspension lower support anti-compression structure proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the vehicle frame in this utility model;

[0021] Figure 3 This is a schematic diagram of the connection relationship of the reinforcing ribs in this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the positioning shell in this utility model;

[0023] Figure 5 This is a schematic diagram of the connection relationship of the adjusting housing in this utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the adjusting housing in this utility model;

[0025] Figure 7This is a schematic diagram of the internal structure of the damping shell in this utility model.

[0026] In the diagram: 1. Frame; 2. Lower rear suspension bracket; 3. Shock absorber; 4. Upper rear suspension bracket; 5. Reinforcing rib; 6. Damping housing; 7. Positioning housing; 8. Guide rod; 9. Connector; 10. Positioning pin; 11. Adjustment housing; 12. Adjustment plate; 13. Locking ball; 14. Wedge slider; 15. Air chamber; 16. Air pump; 17. Spring; 18. Limiting rod; 19. Threaded rod; 20. Servo motor; 21. First gear; 22. Second gear; 23. Threaded groove; 24. Piston; 25. Damping hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] like Figures 1-7 As shown, the present invention proposes a rear suspension lower bracket anti-compression structure, including a frame 1, a rear suspension upper bracket 4 fixedly connected to the upper part of the frame 1, a shock absorber 3 disposed at the lower part of the rear suspension upper bracket 4, a rear suspension lower bracket 2 fixedly connected to the lower part of the shock absorber 3, a rear suspension lower bracket 2 fixedly connected to the lower part of the frame 1, a reinforcing rib 5 fixedly connected at the connection between the rear suspension lower bracket 2 and the frame 1, an adjusting housing 11 fixedly connected to the upper part of the reinforcing rib 5, and a servo motor 20 disposed inside the adjusting housing 11. The output end of the motor 20 is provided with a first gear 21, which meshes with a second gear 22. The second gear 22 is rotatably connected to the adjusting housing 11. A threaded groove 23 is fixedly connected to the upper part of the second gear 22. The threaded groove 23 is rotatably connected to the adjusting housing 11. A threaded rod 19 is threadedly connected inside the threaded groove 23. An adjusting plate 12 is fixedly connected to the upper part of the threaded rod 19. A connecting piece 9 is fixedly connected to the upper part of the adjusting plate 12 and the reinforcing rib 5. A damping and shock-absorbing mechanism is rotatably connected to the upper part.

[0030] A reinforcing rib 5 is fixedly connected at the connection between the frame 1 and the rear lower suspension bracket 2. The reinforcing rib 5 further enhances the connection stability between the frame 1 and the rear lower suspension bracket 2. A damping and shock absorption mechanism is also provided on the reinforcing rib 5. By starting the servo motor 20, the threaded groove 23 is driven to rotate. The rotation of the threaded groove 23 drives the threaded rod 19 connected by the thread to move, which in turn drives the adjustment plate 12 to move and adjust the tilt angle of the damping and shock absorption mechanism. Thus, according to the changes in load and road conditions, the position of the adjustment plate 12 is adjusted to optimize the load transmission path and avoid local overload. There are two rear lower suspension brackets 2, which are respectively set on both sides of the frame 1. Limiting rods 18 are fixedly connected to both sides of the adjustment plate 12. The limiting rods 18 are slidably connected to the adjustment housing 11.

[0031] The damping and shock absorption mechanism includes a damping housing 6 rotatably connected to the upper part of the connector 9, a piston 24 slidably connected inside the damping housing 6, a damping hole 25 is opened on the upper part of the piston 24, a guide rod 8 is fixedly connected to the upper part of the piston 24, the guide rod 8 is slidably connected to the damping housing 6, and the connector 9 is rotatably connected to the upper part of the guide rod 8.

[0032] In this embodiment, one side of the reinforcing rib 5 is connected to the frame 1, and the other side is connected to the rear suspension lower bracket 2, forming a stable triangular support. Through geometric stability, the concentrated load is evenly transferred to the frame 1, reducing single-point stress concentration. Furthermore, a damping and shock-absorbing mechanism is provided on the upper part of the reinforcing rib 5. Starting the servo motor 20 can drive the first gear 21 to rotate, which in turn drives the meshing second gear 22 to rotate. The rotation of the second gear 22 drives the fixedly connected threaded groove 23 to rotate, which in turn drives the threaded rod 19 to move. The movement of the threaded rod 19 then drives the fixedly connected adjusting plate 12 to move. During the movement of the adjustment plate 12, the limiting rod 18 can move along the slidingly connected adjustment housing 11, which effectively improves the stability of the adjustment plate 12 during movement, realizes the fine adjustment of the guide rod 8 in the horizontal direction, adjusts the tilt angle of the damping and shock absorption mechanism, and thus adjusts the position of the adjustment plate 12 according to the load change and road condition difference, optimizes the load transmission path, and avoids local overload. When vibration occurs, the guide rod 8 moves inside the damping housing 6, and the movement of the guide rod 8 can drive the fixedly connected piston 24 to move inside the damping housing 6. When the piston 24 moves, the damping medium inside the damping housing 6 can pass through the damping hole 25, thereby generating throttling resistance to consume the vibration kinetic energy, thereby achieving the purpose of vibration damping.

[0033] Example 2

[0034] like Figures 1-7As shown, a positioning pin 10 is fixedly connected to the upper part of the reinforcing rib 5. A positioning housing 7 is provided inside the frame 1. The positioning pin 10 is inserted into the positioning housing 7 to position the reinforcing rib 5. There are two positioning pins 10 and two positioning housings 7. Mounting holes are opened on both the upper and lower sides of the reinforcing rib 5. An air chamber 15 is opened inside the positioning housing 7. A wedge-shaped slider 14 is slidably connected to the air chamber 15. A spring 17 is fixedly connected to the wedge-shaped slider 14. The positioning housing 7 is fixedly connected to the side of the spring 17 away from the wedge-shaped slider 14. A locking ball 13 is provided on the upper part of the wedge-shaped slider 14. The locking ball 13 is slidably connected to the positioning housing 7. The wedge-shaped slider 14 has a wedge-shaped structure. When the wedge-shaped slider 14 moves upward, it can press the locking ball 13 to move inward and lock the positioning pin 10. Two air pumps 16 are provided on one side of the air chamber 15. The two air pumps 16 are respectively located on the upper and lower sides of the air chamber 15.

[0035] In this embodiment, when installing the reinforcing rib 5, the positioning pin 10 can be inserted into the positioning housing 7 first. By supplying gas to the bottom of the air chamber 15 through the air pump 16, the air pressure in the lower part of the wedge slider 14 can be increased, thereby driving the wedge slider 14 to move upward. Under the combined action of air pressure and spring 17, the wedge slider 14 is driven to move upward, thereby pressing the locking bead 13 to move inward and fix the positioning pin 10. The reinforcing rib 5 can be positioned before installation, which improves the installation stability and also effectively speeds up the installation efficiency. When it is necessary to remove the reinforcing rib 5, the air pump 16 can be used to exhaust the gas in the upper space of the wedge slider 14, thereby venting the gas in the lower area of ​​the wedge slider 14, thereby causing the wedge slider 14 to move downward, releasing the locking of the positioning pin 10, thereby quickly releasing the positioning of the reinforcing rib 5 and facilitating disassembly.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rear suspension lower bracket anti-compression structure, comprising a vehicle frame (1), characterized in that, The upper part of the frame (1) is fixedly connected to the upper rear suspension bracket (4), the lower part of the upper rear suspension bracket (4) is provided with a shock absorber (3), the lower part of the shock absorber (3) is fixedly connected to the lower rear suspension bracket (2), the lower part of the frame (1) is fixedly connected to the lower rear suspension bracket (2), the connection between the lower rear suspension bracket (2) and the frame (1) is fixedly connected with a reinforcing rib (5), the upper part of the reinforcing rib (5) is fixedly connected to an adjusting housing (11), the adjusting housing (11) is provided with a servo motor (20), the output end of the servo motor (20) is provided with a first gear ( 21), the first gear (21) is meshed with the second gear (22), the second gear (22) is rotatably connected to the adjusting housing (11), the upper part of the second gear (22) is fixedly connected to the threaded groove (23), the threaded groove (23) is rotatably connected to the adjusting housing (11), the threaded groove (23) is threadedly connected to the threaded rod (19), the upper part of the threaded rod (19) is fixedly connected to the adjusting plate (12), the upper part of the adjusting plate (12) and the reinforcing rib (5) is fixedly connected to the connecting piece (9), the upper part is rotatably connected to the damping mechanism; A reinforcing rib (5) is fixedly connected at the connection between the frame (1) and the rear lower suspension bracket (2). The reinforcing rib (5) further enhances the connection stability between the frame (1) and the rear lower suspension bracket (2). A damping mechanism is also provided on the reinforcing rib (5). By starting the servo motor (20), the threaded groove (23) is driven to rotate. The rotation of the threaded groove (23) drives the threaded rod (19) connected by the thread to move, thereby driving the adjustment plate (12) to move and adjust the tilt angle of the damping mechanism. Thus, according to the load change and road condition difference, the position of the adjustment plate (12) is adjusted to optimize the load transmission path and avoid local overload.

2. The rear suspension lower support compression-resistant structure according to claim 1, characterized in that, Limiting rods (18) are fixedly connected to both sides of the adjusting plate (12), and the limiting rods (18) are slidably connected to the adjusting housing (11).

3. The rear suspension lower support compression-resistant structure according to claim 1, characterized in that, The upper part of the reinforcing rib (5) is fixedly connected with a positioning pin (10), and the frame (1) is provided with a positioning housing (7). The positioning pin (10) is inserted into the positioning housing (7) to position the reinforcing rib (5).

4. The rear suspension lower support compression-resistant structure according to claim 3, characterized in that, The positioning housing (7) has an air cavity (15) inside, and a wedge-shaped slider (14) is slidably connected to the air cavity (15). A spring (17) is fixedly connected to the wedge-shaped slider (14), and the positioning housing (7) is fixedly connected to the side of the spring (17) away from the wedge-shaped slider (14).

5. The rear suspension lower support compression-resistant structure according to claim 4, characterized in that, The upper part of the wedge-shaped slider (14) is provided with a locking bead (13), and the locking bead (13) is slidably connected to the positioning housing (7).

6. The rear suspension lower support compression-resistant structure according to claim 4, characterized in that, Two air pumps (16) are provided on one side of the air chamber (15), and the two air pumps (16) are respectively located on the upper and lower sides of the air chamber (15).

7. The rear suspension lower support compression-resistant structure according to claim 1, characterized in that, The damping mechanism includes a damping shell (6) rotatably connected to the upper part of the connector (9), and a piston (24) is slidably connected inside the damping shell (6). A damping hole (25) is opened on the upper part of the piston (24).

8. The rear suspension lower support compression-resistant structure according to claim 7, characterized in that, The piston (24) is fixedly connected to the upper part of a guide rod (8), which is slidably connected to the damping housing (6), and the upper part of the guide rod (8) is rotatably connected to a connector (9).

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