Adjustable automobile shock absorber

Abstract

The utility model discloses an adjustable automobile shock absorber which comprises an upper mounting seat, a connecting rod fixedly connected to the right surface of the upper mounting seat, an air cylinder seat arranged at the right end of the connecting rod, a buffer spring fixedly connected between the air cylinder seat and the upper mounting seat, and a lower mounting seat arranged on the right side of the air cylinder seat. A limiting groove is formed in the left surface of the lower mounting seat, a bearing and a storage pipe are arranged in the limiting groove, the bearing is fixedly connected with the inner wall of the limiting groove, the left end of the storage pipe protrudes out of the limiting groove, and the right end of the storage pipe is fixedly connected with an inner shaft of the bearing. A threaded mechanism is arranged between the inner wall of the storage pipe and the side surface of the air cylinder seat, and a limiting mechanism is arranged between the side surface of the storage pipe and the limiting groove. Through the structure, the stability and the damage resistance of parts of the shock absorber during action are improved.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber technology, and in particular to an adjustable automotive shock absorber. Background Technology

[0002] The total length of a car shock absorber directly affects its performance. Conventional shock absorbers lack length adjustment mechanisms, reducing their practicality. A patent application published on the China Patent Network, titled "An Adjustable Car Shock Absorber" (application number "202323178124.2"), describes a shock absorber that uses a telescopic rod at one end to control the movement of a connecting rod, thus providing length adjustment. However, the shock absorber typically generates negative stress during operation, increasing the risk of damage to the telescopic rod. Furthermore, the high maintenance cost of the telescopic rod itself increases the overall maintenance cost of the shock absorber, impacting its practicality. Summary of the Invention

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an adjustable car shock absorber that makes it convenient for workers to adjust the total length of the shock absorber, increases the stability and resistance to negative stress when the shock absorber adjustment mechanism is in operation, and has a simple mechanical structure that reduces maintenance costs.

[0004] This utility model also provides an adjustable automotive shock absorber, comprising: an upper mounting base, a connecting rod fixedly connected to the right surface of the upper mounting base, a cylinder seat disposed at the right end of the connecting rod, the right end of the connecting rod being located inside the cylinder seat, a buffer spring fixedly connected between the cylinder seat and the upper mounting base, a lower mounting base disposed on the right side of the cylinder seat, a limiting groove disposed on the left surface of the lower mounting base, a bearing and a receiving tube disposed inside the limiting groove, the bearing being fixedly connected to the inner wall of the limiting groove, the left end of the receiving tube protruding from the limiting groove, and the right end of the receiving tube being fixedly connected to the inner shaft of the bearing. When the shock absorber is in use, the right end of the cylinder seat is located inside the receiving tube, a threaded mechanism is disposed between the inner wall of the receiving tube and the side surface of the cylinder seat, and a limiting mechanism is disposed between the side surface of the receiving tube and the limiting groove.

[0005] According to the adjustable automotive shock absorber of this utility model, a support spring is fixedly connected to the right inner wall of the receiving tube, and the left end of the support spring is fixedly connected to the right surface of the cylinder seat. This reduces the impact of stress on the threaded mechanism.

[0006] According to the present invention, an adjustable automotive shock absorber includes a limiting mechanism consisting of a positioning ring and a contoured groove. When the shock absorber is in use, the positioning ring engages with the contoured groove, thus improving the ease of use of the limiting mechanism.

[0007] According to the present invention, an adjustable automotive shock absorber has two lifting straps fixedly connected to the left surface of the positioning ring. The lifting straps are made of rubber and are arranged opposite to each other. This improves the ease of use of the positioning ring.

[0008] According to the present invention, an adjustable automotive shock absorber has an inner wall of the positioning ring in close contact with the side surface of the receiving tube, and the contoured groove and the limiting groove are interconnected. This improves the convenience of maintenance of the limiting mechanism.

[0009] According to the adjustable automotive shock absorber of this utility model, the diameter of the left end of the receiving tube is smaller than the diameter of the right end of the receiving tube, and when the shock absorber is in use, the inner wall of the positioning ring is in close contact with the surface of the right end of the receiving tube. This improves the effectiveness of the positioning ring.

[0010] According to the adjustable automotive shock absorber of this utility model, the diameter of the positioning ring is the same as the diameter of the limiting groove. When the shock absorber is in use, the positioning ring closes the limiting groove, thereby improving the sealing effect of the limiting groove.

[0011] According to the present invention, an adjustable automotive shock absorber comprises an external thread and an internal thread. The external thread is located on the side surface of the cylinder seat, and the internal thread is located on the inner wall of the receiving tube. This improves the ease of use of the thread mechanism.

[0012] Beneficial effects:

[0013] Compared with existing technologies, this adjustable automotive shock absorber uses a housing tube, cylinder seat, and threaded mechanism to form a screw structure that provides the overall length for the shock absorber. The support spring, limiting groove, bearing, positioning ring, and contoured slot inside the housing tube reduce the impact of negative stress generated during shock absorber operation on the adjustment mechanism and improve the stability of the adjustment mechanism during operation. Furthermore, the simple mechanical structure reduces the overall maintenance cost of the shock absorber adjustment mechanism. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a left-side structural view of an adjustable automotive shock absorber according to this utility model;

[0016] Figure 2 This is a right-side structural view of an adjustable automotive shock absorber according to this utility model;

[0017] Figure 3 This is a left-side view of the disassembled structure of an adjustable automotive shock absorber according to this utility model.

[0018] Figure 4This is a right-side view of the disassembled structure of an adjustable automotive shock absorber according to this utility model.

[0019] Legend:

[0020] 1. Upper mounting base; 2. Lower mounting base; 3. Storage tube; 4. Threaded mechanism; 5. Positioning ring; 6. Connecting rod; 7. Buffer spring; 8. Cylinder seat; 9. Limiting groove; 10. Bearing; 11. External thread; 12. Internal thread; 13. Support spring; 14. Limiting mechanism; 15. Contour groove; 16. Lifting strap. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4 This utility model discloses an adjustable automotive shock absorber, comprising: an upper mounting base 1, a connecting rod 6 fixedly connected to the right surface of the upper mounting base 1, a cylinder seat 8 disposed at the right end of the connecting rod 6, the right end of the connecting rod 6 being located inside the cylinder seat 8, and a buffer spring 7 fixedly connected between the cylinder seat 8 and the upper mounting base 1. These components cooperate to form the basic structure of the automotive shock absorber. The upper mounting base 1 is used for fixed connection with the vehicle body. The connecting rod 6, buffer spring 7, and cylinder seat 8 form a common spring shock absorber structure. A lower mounting base 2 is disposed on the right side of the cylinder seat 8. A limiting groove 9 is disposed on the left surface of the lower mounting base 2. A bearing 10 and a receiving tube 3 are disposed inside the limiting groove 9. The bearing 10 is fixedly connected to the inner wall of the limiting groove 9. The left end of the receiving tube 3 protrudes from the limiting groove 9, and the right end of the receiving tube 3 is connected to the bearing 10. The inner shaft is fixedly connected. When the shock absorber is used, the right end of the cylinder seat 8 is located inside the housing tube 3. The housing tube 3 is used to house the right end of the cylinder seat 8. The bearing 10 is used to provide the housing tube 3 with the conditions for rotation. A threaded mechanism 4 is provided between the inner wall of the housing tube 3 and the side surface of the cylinder seat 8. The threaded mechanism 4 consists of an external thread 11 and an internal thread 12. The external thread 11 is located on the side surface of the cylinder seat 8, and the internal thread 12 is located on the inner wall of the housing tube 3. The threaded mechanism 4 is used to integrate the housing tube 3 and the cylinder seat 8. The bearing 10, housing tube 3, cylinder seat 8, and threaded mechanism 4 cooperate with each other to form the adjustment mechanism of the car shock absorber. A support spring 13 is fixedly connected to the right inner wall of the housing tube 3. The left end of the support spring 13 is fixedly connected to the right surface of the cylinder seat 8. The support spring 13 is used to reduce the negative impact on the threaded mechanism 4.

[0023] Specifically, the upper mounting bracket 1 is connected to the main body of the car, and the lower mounting bracket 2 is connected to the wheel mounting bracket of the car. The rotating storage tube 3 changes the length of the cylinder seat 8 inside the storage tube 3. The bearing 10 provides the storage tube 3 with the conditions to rotate relative to other components of the shock absorber. When the length of the shock absorber is increased, the storage tube 3 is affected by the threaded mechanism 4 and the support spring 13 during the rotation process, and the storage tube 3 extends away from the cylinder seat 8.

[0024] A limiting mechanism 14 is provided between the side surface of the storage tube 3 and the limiting groove 9. The limiting mechanism 14 consists of a positioning ring 5 and a contoured slot 15. When the shock absorber is used, the positioning ring 5 engages with the contoured slot 15, and the two lifting straps 16 are distributed opposite each other. The inner wall of the positioning ring 5 is in close contact with the side surface of the storage tube 3. The contoured slot 15 and the limiting groove 9 are interconnected. The diameter of the left end of the storage tube 3 is smaller than the diameter of the right end of the storage tube 3. When the shock absorber is used, the inner wall of the positioning ring 5 is in close contact with the surface of the right end of the storage tube 3. The diameter of the positioning ring 5 is the same as the diameter of the limiting groove 9. When the shock absorber is used, the positioning ring 5 closes the limiting groove 9. The limiting mechanism 14 is used to limit the range of motion of the storage tube 3. Two lifting straps 16 are fixedly connected to the left surface of the positioning ring 5. The lifting straps 16 are made of rubber and are used to improve the convenience of disassembling the positioning ring 5.

[0025] Specifically, due to the influence of the structure of the storage tube 3 itself, as the positioning ring 5 is pulled out away from the limiting groove 9, the inner wall of the positioning ring 5 separates from the side surface of the positioning ring 5. This prevents the positioning ring 5 from deviating from the contouring groove 15 after rotation. Conversely, during the process of the positioning ring 5 being pressed into the limiting groove 9, the inner wall of the positioning ring 5 contacts the side surface of the storage tube 3. The friction after the positioning ring 5 contacts the storage tube 3 integrates the positioning ring 5 and the storage tube 3. After the positioning ring 5 is engaged with the contouring groove 15, the range of motion of the storage tube 3 is directly restricted, preventing the storage tube 3 from being driven by stress and rotating on its own.

[0026] Working principle: Since the lower mounting base 2 is located near the outside of the car, when the length of the shock absorber needs to be increased, the positioning ring 5 is pulled out by the hook through the lifting strap 16. At this time, the storage tube 3 is not restricted by the positioning ring 5 and is in a rotatable state. When the storage tube 3 is rotated, it is extended away from the cylinder seat 8 by the influence of the thread mechanism 4 and the support spring 13, thereby changing the total length of the shock absorber. When the length of the shock absorber needs to be reduced, the storage tube 3 is rotated and pushed towards the cylinder seat 8, thereby reducing the total length of the shock absorber. After the shock absorber is adjusted, the positioning ring 5 is pressed down. During the process of the positioning ring 5 entering the limiting groove 9, the inner wall of the positioning ring 5 is in close contact with the surface of the storage tube 3. After the positioning ring 5 is fully inserted into the limiting groove 9, the friction between the positioning ring 5 and the storage tube 3, and the snap-fit ​​structure between the positioning ring 5 and the contoured slot 15, ensure that the storage tube 3 will not rotate due to stress during the operation of the shock absorber.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An adjustable automotive shock absorber, characterized in that, include: An upper mounting base (1) is provided with a connecting rod (6) fixedly connected to the right surface of the upper mounting base (1). A cylinder seat (8) is provided at the right end of the connecting rod (6). The right end of the connecting rod (6) is located inside the cylinder seat (8). A buffer spring (7) is fixedly connected between the cylinder seat (8) and the upper mounting base (1). A lower mounting base (2) is provided on the right side of the cylinder seat (8). The left surface of the lower mounting base (2) is provided with a limiting groove (9). The inside of the limiting groove (9) is provided with a bearing (10) and a receiving tube (3). The bearing (10) is fixedly connected to the inner wall of the limiting groove (9). The left end of the receiving tube (3) protrudes from the limiting groove (9). The right end of the receiving tube (3) is fixedly connected to the inner shaft of the bearing (10). When the shock absorber is used, the right end of the cylinder seat (8) is located inside the receiving tube (3). A threaded mechanism (4) is provided between the inner wall of the receiving tube (3) and the side surface of the cylinder seat (8). A limiting mechanism (14) is provided between the side surface of the receiving tube (3) and the limiting groove (9).

2. An adjustable automotive shock absorber according to claim 1, characterized in that, A support spring (13) is fixedly connected to the right inner wall of the receiving tube (3), and the left end of the support spring (13) is fixedly connected to the right surface of the cylinder seat (8).

3. An adjustable automotive shock absorber according to claim 1, characterized in that, The limiting mechanism (14) consists of a positioning ring (5) and a contoured slot (15). When the shock absorber is used, the positioning ring (5) engages with the contoured slot (15).

4. An adjustable automotive shock absorber according to claim 3, characterized in that, Two lifting straps (16) are fixedly connected to the left surface of the positioning ring (5). The lifting straps (16) are made of rubber and the two lifting straps (16) are distributed opposite to each other.

5. An adjustable automotive shock absorber according to claim 4, characterized in that, The inner wall of the positioning ring (5) is in close contact with the side surface of the receiving tube (3), and the contoured slot (15) and the limiting groove (9) are interconnected.

6. An adjustable automotive shock absorber according to claim 5, characterized in that, The diameter of the left end of the receiving tube (3) is smaller than the diameter of the right end of the receiving tube (3), and when the shock absorber is used, the inner wall of the positioning ring (5) is in close contact with the surface of the right end of the receiving tube (3).

7. An adjustable automotive shock absorber according to claim 6, characterized in that, The diameter of the positioning ring (5) is the same as the diameter of the limiting groove (9). When the shock absorber is used, the positioning ring (5) closes the limiting groove (9).

8. An adjustable automotive shock absorber according to claim 1, characterized in that, The thread mechanism (4) consists of an external thread (11) and an internal thread (12). The external thread (11) is located on the side surface of the cylinder seat (8), and the internal thread (12) is located on the inner wall of the receiving tube (3).

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