A stepped coil spring device for a vehicle shock absorber

Abstract

This utility model discloses a stepped helical spring device for automobile shock absorption. The utility model includes a stepped spring assembly comprising a first spring, a positioning cover, a limiting plate, a limiting ring, and a second spring. Two sets of positioning covers are provided, located at the upper and lower ends of the first spring, respectively, with the concave surfaces of both sets facing the first spring. Multiple limiting plates are slidably connected to the side of the positioning cover away from the first spring. The limiting ring is fixedly connected to the side of the limiting plate away from the positioning cover. The second spring is disposed between the limiting ring and the positioning cover, abutting against the limiting ring and the positioning cover. The stepped spring assembly allows for graded stiffness adjustment, enabling the vehicle to adaptively adjust under different impact forces, greatly improving the vehicle's ride smoothness and handling stability, and allowing the vehicle to achieve ideal driving performance under various road conditions.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive shock absorber components, specifically a stepped helical spring device for automotive shock absorption. Background Technology

[0002] The automotive shock absorption system is a crucial component of a car, and its performance directly affects the car's ride smoothness, handling stability, and passenger comfort. As a key component of the automotive shock absorption system, the coil spring absorbs and releases the energy generated by road impacts through its elastic deformation, thereby reducing vehicle vibration.

[0003] Currently, most traditional automotive coil springs are of equal diameter and equal pitch, a structure with certain limitations. On one hand, when faced with varying degrees of road impact, the stiffness of equal diameter and equal pitch coil springs exhibits a relatively uniform change, unable to adaptively adjust according to the magnitude of the impact. For example, on smooth roads, the spring requires lower stiffness to ensure ride comfort; while on rough roads or when encountering large obstacles, higher stiffness is needed to support the vehicle body and prevent excessive compression. Traditional springs struggle to simultaneously meet these two requirements, resulting in less than ideal driving performance for vehicles under different road conditions. Utility Model Content

[0004] The purpose of this invention is to provide a stepped helical spring device for automobile shock absorption, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stepped helical spring device for automotive shock absorption, comprising: a stepped spring assembly, the stepped spring assembly including a first spring, a positioning cover, a limiting plate, a limiting ring, and a second spring; two sets of positioning covers are provided, the two sets of positioning covers are respectively located at the upper and lower ends of the first spring, and the concave surfaces of the two sets of positioning covers face the first spring; the limiting plate is slidably connected to the side of the positioning cover away from the first spring, and multiple sets of limiting plates are provided; the limiting ring is fixedly connected to the side of the limiting plate away from the positioning cover; the second spring is disposed between the limiting ring and the positioning cover, and the second spring abuts against the limiting ring and the positioning cover.

[0006] Furthermore, the upper end of the positioning cover is provided with a sliding groove, and multiple sets of sliding grooves are provided, with the limiting plate slidably connected inside the sliding groove.

[0007] Furthermore, a circular groove is provided through the upper end of the positioning cover, and a circular groove is provided through the upper end of the limiting ring.

[0008] Furthermore, a bottom limiting component is provided at the bottom of the stepped spring assembly, and a shock-absorbing component is provided at the upper end of the bottom limiting component.

[0009] Furthermore, the bottom limiting component includes a bottom block, a support rod, a limiting base, and a fixing plate. The support rod is fixedly connected to the upper end of the bottom block, the limiting base is fixedly connected to the periphery of the support rod, and the fixing plate is fixedly connected to the periphery of the bottom block, with two sets of fixing plates provided.

[0010] Furthermore, the upper end of the support rod is provided with a threaded groove, and the front of the fixing plate is provided with a fixing hole.

[0011] Furthermore, the shock absorption assembly includes a shock absorber cylinder, a bottom connector, a top connector, and a support column seat. The bottom connector is fixedly connected to the bottom of the shock absorber cylinder, the top connector is fixedly connected to the upper end of the shock absorber cylinder, the support column seat is threadedly connected to the upper end of the top connector, and the bottom connector is threadedly connected to the inside of the threaded groove.

[0012] Furthermore, a dust cover for the shock absorber is fitted around the periphery of the shock absorber cylinder, and a top limiting component is provided at the upper end of the shock absorber assembly. The top limiting component includes a limiting top seat and a mounting plate. The limiting top seat is fixedly connected to the upper end of the support column seat, and the mounting plate is fixedly connected to the upper end of the limiting top seat. A threaded hole is provided through the upper end of the mounting plate, and multiple sets of threaded holes are provided.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention enables graded stiffness adjustment through a stepped spring assembly, allowing the vehicle to adaptively adjust under different impact forces, greatly improving the vehicle's ride smoothness and handling stability, and enabling the vehicle to achieve ideal driving performance under different road conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the intermediate stepped spring assembly;

[0017] Figure 3 for Figure 1 A schematic diagram of the bottom limiting component;

[0018] Figure 4 for Figure 1 Schematic diagram of the structure of the intermediate damping component;

[0019] Figure 5 for Figure 1 A schematic diagram of the top limiting component;

[0020] Figure 6 for Figure 1 A schematic diagram of the structure of the dust cover for the shock absorber.

[0021] Reference numerals: 1. Stepped spring assembly; 11. Spring 1; 12. Positioning cover; 13. Limiting plate; 14. Limiting ring; 15. Spring 2; 2. Bottom limiting assembly; 21. Bottom block; 22. Support rod; 221. Threaded groove; 23. Limiting base; 24. Fixing plate; 241. Fixing hole; 3. Shock absorber assembly; 31. Shock absorber cylinder; 32. Bottom connector; 33. Top connector; 34. Column upper seat; 4. Shock absorber dust cover; 5. Top limiting assembly; 51. Limiting top seat; 52. Mounting plate; 521. Threaded hole. Detailed Implementation

[0022] 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.

[0023] Please refer to the following: Figures 1-6 ,in Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the intermediate stepped spring assembly; Figure 3 for Figure 1 A schematic diagram of the bottom limiting component; Figure 4 for Figure 1 Schematic diagram of the structure of the intermediate damping component; Figure 5 for Figure 1 A schematic diagram of the top limiting component; Figure 6 for Figure 1 A schematic diagram of the structure of a dust cover for a shock absorber. A stepped helical spring device for automotive shock absorbers includes: a stepped spring assembly 1, which includes a first spring 11, a positioning cover 12, a limiting plate 13, a limiting ring 14, and a second spring 15. Two sets of positioning covers 12 are provided, located at the upper and lower ends of the first spring 11 respectively, with the concave surfaces of both sets of positioning covers 12 facing the first spring 11. The limiting plate 13 is slidably connected to the side of the positioning cover 12 away from the first spring 11, and multiple sets of the limiting plate 13 are provided. The limiting ring 14 is fixedly connected to the side of the limiting plate 13 away from the positioning cover 12. The second spring 15 is disposed between the limiting ring 14 and the positioning cover 12, and the second spring 15 abuts against the limiting ring 14 and the positioning cover 12. The limiting plate 13 can limit the second spring 15, allowing the second spring 15 to work stably.

[0024] The upper end of the positioning cover 12 is provided with a sliding groove, and multiple sets of sliding grooves are provided. The limiting plate 13 is slidably connected inside the sliding groove, and the limiting plate 13 can slide along the positioning cover 12 through the sliding groove.

[0025] The upper end of the positioning cover 12 has a circular groove 1 through it, and the upper end of the limiting ring 14 has a circular groove 2 through it. The shock absorber cylinder 31 is slidably connected to the inner side of the circular groove 1 and the circular groove 2.

[0026] The bottom of the stepped spring assembly 1 is provided with a bottom limiting component 2, and the top of the bottom limiting component 2 is provided with a shock-absorbing component 3.

[0027] The bottom limiting component 2 includes a bottom block 21, a support rod 22, a limiting base 23, and a fixing plate 24. The support rod 22 is fixedly connected to the upper end of the bottom block 21, the limiting base 23 is fixedly connected to the periphery of the support rod 22, and the fixing plate 24 is fixedly connected to the periphery of the bottom block 21. Two sets of fixing plates 24 are provided, and the bottom edge of the limiting ring 14 abuts against the inside of the limiting base 23.

[0028] The upper end of the support rod 22 is provided with a threaded groove 221, and the front of the fixing plate 24 is provided with a fixing hole 241. The bottom limiting component 2 can be easily installed on the corresponding position of the car through the fixing hole 241.

[0029] The shock absorber assembly 3 includes a shock absorber cylinder 31, a bottom connector 32, a top connector 33, and a support column seat 34. The bottom connector 32 is fixedly connected to the bottom of the shock absorber cylinder 31, the top connector 33 is fixedly connected to the upper end of the shock absorber cylinder 31, the support column seat 34 is threadedly connected to the upper end of the top connector 33, and the bottom connector 32 is threadedly connected to the inside of the threaded groove 221.

[0030] The shock absorber cylinder 31 is fitted with a shock absorber dust cover 4 on its circumference. The upper end of the shock absorber assembly 3 is provided with a top limiting assembly 5, which includes a limiting top seat 51 and a mounting plate 52. The limiting top seat 51 is fixedly connected to the upper end of the support column 34, and the mounting plate 52 is fixedly connected to the upper end of the limiting top seat 51. The upper end of the mounting plate 52 is provided with a threaded hole 521. Multiple sets of threaded holes 521 are provided. The mounting plate 52 can be easily fixed to the corresponding position on the car with screws through the threaded holes 521.

[0031] In summary, the stepped helical spring device for automobile shock absorption provided by this utility model can achieve graded stiffness adjustment through spring 11 and spring 25 during operation, enabling the automobile to adaptively adjust under different impact forces, which greatly improves the ride smoothness and handling stability of the automobile.

[0032] The bottom limiting component 2 and the top limiting component 5 facilitate the installation of the stepped spring assembly 1. At the same time, the limiting base 23 and the limiting top seat 51 limit the stepped spring assembly 1, making the stepped spring assembly 1 more stable during operation. The shock-absorbing component 3, in conjunction with the stepped spring assembly 1, enables the device to have a shock-absorbing effect.

Claims

1. A stepped helical spring device for automobile shock absorption, characterized in that, include: A stepped spring assembly (1) includes a spring one (11), a positioning cover (12), a limiting plate (13), a limiting ring (14), and a spring two (15). The positioning cover (12) is provided in two sets, and the two sets of positioning covers (12) are located at the upper and lower ends of the spring one (11), respectively. The concave surfaces of the two sets of positioning covers (12) face the spring one (11). The limiting plate (13) is slidably connected to the side of the positioning cover (12) away from the spring one (11), and multiple sets of limiting plates (13) are provided. The limiting ring (14) is fixedly connected to the side of the limiting plate (13) away from the positioning cover (12). The spring two (15) is provided between the limiting ring (14) and the positioning cover (12), and the spring two (15) abuts against the limiting ring (14) and the positioning cover (12).

2. The stepped coil spring device for a vehicle shock absorber according to claim 1, characterized by The upper end of the positioning cover (12) is provided with a sliding groove, and multiple sets of sliding grooves are provided. The limiting plate (13) is slidably connected inside the sliding groove.

3. The stepped coil spring device for a vehicle shock absorber according to claim 2, characterized by The upper end of the positioning cover (12) has a circular groove, and the upper end of the limiting ring (14) has a circular groove.

4. The stepped coil spring device for a vehicle shock absorber according to claim 3, characterized by The bottom of the stepped spring assembly (1) is provided with a bottom limiting component (2), and the top of the bottom limiting component (2) is provided with a shock-absorbing component (3).

5. The stepped coil spring device for a vehicle shock absorber according to claim 4, characterized by The bottom limiting component (2) includes a bottom block (21), a support rod (22), a limiting base (23), and a fixing plate (24). The support rod (22) is fixedly connected to the upper end of the bottom block (21), the limiting base (23) is fixedly connected to the periphery of the support rod (22), and the fixing plate (24) is fixedly connected to the periphery of the bottom block (21). There are two sets of fixing plates (24).

6. The stepped coil spring device for a vehicle shock absorber according to claim 5, wherein The upper end of the support rod (22) is provided with a threaded groove (221), and the front of the fixing plate (24) is provided with a fixing hole (241).

7. The stepped coil spring device for a vehicle shock absorber according to claim 6, wherein The shock absorption assembly (3) includes a shock absorber cylinder (31), a bottom connector (32), a top connector (33), and a support upper seat (34). The bottom connector (32) is fixedly connected to the bottom of the shock absorber cylinder (31), the top connector (33) is fixedly connected to the upper end of the shock absorber cylinder (31), the support upper seat (34) is threadedly connected to the upper end of the top connector (33), and the bottom connector (32) is threadedly connected inside the threaded groove (221).

8. The stepped coil spring device for a vehicle shock absorber according to claim 7, characterized by The shock absorber cylinder (31) is fitted with a shock absorber dust cover (4) on its periphery. The shock absorber assembly (3) is provided with a top limiting assembly (5) at its upper end. The top limiting assembly (5) includes a limiting top seat (51) and a mounting plate (52). The limiting top seat (51) is fixedly connected to the upper end of the support column seat (34). The mounting plate (52) is fixedly connected to the upper end of the limiting top seat (51). The upper end of the mounting plate (52) is provided with a through hole (521). Multiple sets of the through holes (521) are provided.

Images