Front shock absorber of motorcycle

Abstract

The utility model discloses a front shock absorber of a motorcycle. The front shock absorber comprises a shock absorbing cylinder and a floating rod, a lantern ring is arranged at the top of the damping cylinder, a cavity is formed in the damping cylinder, and a fixing cylinder is arranged on the inner bottom wall of the cavity; the bottom of the floating rod is connected with a lifting piston A. The lifting piston A is connected into the cavity in a sliding mode. A hydraulic mechanism is arranged in the cavity; after the floating rod moves downwards, the floating rod can drive the lifting piston A to move downwards in the damping cylinder, so that the damping spring B on the surface of the floating rod is driven to be compressed, and buffering and damping are formed; the lifting piston A can drive an inner rod and a lifting piston B to move downwards, the lifting piston B is connected into a fixing cylinder in a sliding mode, the lifting piston B can extrude a damping spring A, two times of damping are formed, and therefore the buffering performance and the damping performance are further improved, the working stability of the front shock absorber body is guaranteed, use is convenient, and the damping effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a front shock absorber for a motorcycle. Background Technique

[0002] Motorcycle shock absorbers play a very important role. They can quickly attenuate the impacts and vibrations brought about by changes in vehicle speed, load, and various road conditions, so as to improve the shock absorption performance of motorcycles. Shock absorbers are important devices for motorcycles. In order to relieve and attenuate the impacts and vibrations suffered by motorcycles due to uneven roads during driving, ensure the smoothness and comfort of driving, and be beneficial to improving the service life and handling stability of motorcycles, shock absorber devices are provided on motorcycles. The front shock absorber of a motorcycle is connected to the front wheel and the frame. It not only plays a part of the skeleton support role but also plays the role of a shock absorber.

[0003] In the prior art, most of the front shock absorbers of motorcycles use damping springs inside for shock absorption. However, most of the front shock absorbers of motorcycles only have primary shock absorption and lack secondary shock absorption. As a result, during the use of the front shock absorber of a motorcycle, such as when driving on complex road conditions, especially when turning, a single shock absorber may not be able to effectively disperse the lateral force of the vehicle body, resulting in a decrease in vehicle body stability and comfort. In view of this, we introduce a front shock absorber for a motorcycle. Content of the Utility Model

[0004] The purpose of the utility model is to provide a front shock absorber for a motorcycle to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A front shock absorber for a motorcycle, comprising: a shock absorber cylinder and a floating rod;

[0006] A collar is provided at the top of the shock absorber cylinder, and the collar and the shock absorber cylinder are integrally formed. A cavity is opened inside the shock absorber cylinder, and the cavity and the shock absorber cylinder are integrally formed. A fixed cylinder is provided on the inner bottom wall of the cavity, and the fixed cylinder and the cavity are fixedly arranged;

[0007] A lifting piston A is connected to the bottom of the floating rod, and the lifting piston A and the floating rod are fixedly arranged. The lifting piston A is slidably connected inside the cavity;

[0008] A hydraulic mechanism is arranged inside the cavity. The inner rod of the hydraulic mechanism drives a lifting piston B to move inside the fixed cylinder, so as to buffer the floating rod.

[0009] Preferably, the hydraulic mechanism includes a damping spring A connected inside the fixed cylinder. The lifting piston B is slidably connected inside the fixed cylinder. The damping spring A is located at the bottom of the lifting piston B and is fixedly arranged between the damping spring A, the fixed cylinder, and the lifting piston B. The bottom of the inner rod is connected to the top of the lifting piston B and is fixedly arranged between the inner rod and the lifting piston B. The top of the inner rod is connected to the bottom of the lifting piston A. A damping spring B is sleeved on the surface of the floating rod and is located at the top of the lifting piston A.

[0010] Preferably, a limiting block A is connected to the side of the lifting piston A. A limiting groove A for slidably connecting the limiting block A is provided inside the shock-absorbing cylinder. The arrangement of the limiting groove A can limit the movement of the lifting piston A, enabling the lifting piston A to always perform a vertical lifting movement.

[0011] Preferably, a limiting block B is connected to the side of the lifting piston B. A limiting groove B for slidably connecting the limiting block B is provided inside the fixed cylinder. The arrangement of the limiting groove B can limit the movement of the lifting piston B, enabling the lifting piston B to always perform a vertical movement.

[0012] Preferably, a positioning post is connected to the top of the floating rod. A fastening gasket is sleeved on the surface of the positioning post. A fastening bolt is connected to the top of the positioning post. A damping spring C is connected inside the positioning post and is located at the bottom of the fastening bolt.

[0013] Preferably, a fixed ear is connected to the surface of the shock-absorbing cylinder. A positioning hole is provided on the surface of the fixed ear. The fixed ear and the positioning hole are used in combination to fix the shock-absorbing cylinder.

[0014] Preferably, a connecting ear is connected to the surface of the shock-absorbing cylinder. A positioning groove is provided on the surface of the connecting ear. The connecting ear and the positioning groove are used in combination to further fix the shock-absorbing cylinder.

[0015] Preferably, a sealing ring is connected to the surface of the collar, and the floating rod passes through the sealing ring. The setting of the sealing ring can block external dust and prevent dust from entering the inside of the shock-absorbing cylinder.

[0016] Preferably, an anti-slip groove is provided on the surface of the shock-absorbing cylinder. The anti-slip groove and the shock-absorbing cylinder are integrally formed. A connecting groove is provided on the surface of the shock-absorbing cylinder.

[0017] Preferably, a base is connected to the bottom of the shock-absorbing cylinder. The base and the shock-absorbing cylinder are integrally formed.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: After the floating rod of the present utility model moves downward, the floating rod will drive the lifting piston A to move downward inside the shock absorption cylinder, thereby driving the damping spring B on the surface of the floating rod to be compressed, forming buffering and shock absorption.

[0019] The lifting piston A will drive the inner rod and the lifting piston B to move downward, causing the lifting piston B to slide inside the fixed cylinder. The lifting piston B will then squeeze the damping spring A, forming two-stage shock absorption, thereby further increasing the buffering and shock absorption performance, ensuring the stability of the operation of the front shock absorber body, facilitating use, having a better shock absorption effect. When driving on complex road conditions, especially when turning, the two-stage shock-absorbing motorcycle front shock absorber can effectively disperse the lateral force of the vehicle body, increasing stability and comfort. Moreover, the two-stage shock absorption has good supporting force, strong load-bearing capacity, and is convenient for use and popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the floating rod and the fastening bolt of the present utility model when three-dimensionally disassembled;

[0022] Figure 3 is a schematic side-sectional structural diagram of the shock absorption cylinder of the present utility model.

[0023] In the figure: 1, shock absorption cylinder; 2, collar; 3, sealing ring; 4, floating rod; 5, fastening bolt; 6, fixed ear; 7, positioning hole; 8, anti-slip groove; 9, connecting ear; 10, positioning groove; 11, base; 12, connecting groove; 13, positioning column; 14, fastening gasket; 15, damping spring B; 16, limit block A; 17, limit groove A; 18, inner rod; 19, cavity; 20, limit block B; 21, limit groove B; 22, damping spring A; 23, lifting piston B; 24, fixed cylinder; 25, lifting piston A; 26, damping spring C. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-3, the present utility model provides a technical solution: a motorcycle front shock absorber, comprising: a shock absorber cylinder 1, a collar 2 is provided at the top of the shock absorber cylinder 1, a cavity 19 is opened inside the shock absorber cylinder 1, and a fixed cylinder 24 is provided on the inner bottom wall of the cavity 19;

[0026] A floating rod 4, the bottom of the floating rod 4 is connected with a lifting piston A 25, and the lifting piston A 25 is slidably connected inside the cavity 19;

[0027] A hydraulic mechanism is arranged inside the cavity 19, and the inner rod 18 of the hydraulic mechanism drives the lifting piston B 23 to move inside the fixed cylinder 24, so as to buffer the floating rod 4.

[0028] The hydraulic mechanism includes a damping spring A 22 connected inside the fixed cylinder 24, the lifting piston B 23 is slidably connected inside the fixed cylinder 24, the damping spring A 22 is located at the bottom of the lifting piston B 23, and the damping spring A 22 is fixedly arranged with the fixed cylinder 24 and the lifting piston B 23. The bottom of the inner rod 18 is connected to the top of the lifting piston B 23, and the inner rod 18 is fixedly arranged with the lifting piston B 23. The top of the inner rod 18 is connected to the bottom of the lifting piston A 25, and a damping spring B 15 is sleeved on the surface of the floating rod 4 and located on the top of the lifting piston A 25.

[0029] A limiting block A 16 is connected to the side of the lifting piston A 25, and a limiting groove A 17 for slidably connecting the limiting block A 16 is opened inside the shock absorber cylinder 1. The arrangement of the limiting groove A 17 can limit the movement of the lifting piston A 25, so that the lifting piston A 25 always moves in a vertical state.

[0030] A limiting block B 20 is connected to the side of the lifting piston B 23, and a limiting groove B 21 for slidably connecting the limiting block B 20 is opened inside the fixed cylinder 24. The arrangement of the limiting groove B 21 can limit the movement of the lifting piston B 23, so that the lifting piston B 23 always moves in a vertical state.

[0031] A positioning column 13 is connected to the top of the floating rod 4, a fastening gasket 14 is sleeved on the surface of the positioning column 13, a fastening bolt 5 is connected to the top of the positioning column 13, and a damping spring C 26 is connected inside the positioning column 13 and located at the bottom of the fastening bolt 5.

[0032] A fixed ear 6 is connected to the surface of the shock absorber cylinder 1, a positioning hole 7 is opened on the surface of the fixed ear 6, and the fixed ear 6 and the positioning hole 7 are used together to fix the shock absorber cylinder 1.

[0033] A connecting ear 9 is connected to the surface of the shock absorber cylinder 1, and a positioning groove 10 is formed on the surface of the connecting ear 9. The combined use of the connecting ear 9 and the positioning groove 10 can further fix the shock absorber cylinder 1.

[0034] A sealing ring 3 is connected to the surface of the collar 2, and the floating rod 4 penetrates through the sealing ring 3. The sealing ring 3 can block external dust and prevent it from entering the interior of the shock absorber cylinder 1.

[0035] An anti-slip groove 8 is formed on the surface of the shock absorber cylinder 1, and the anti-slip groove 8 and the shock absorber cylinder 1 are integrally formed. A connecting groove 12 is formed on the surface of the shock absorber cylinder 1.

[0036] A base 11 is connected to the bottom of the shock absorber cylinder 1, and the base 11 and the shock absorber cylinder 1 are integrally formed.

[0037] Specifically, during use, after the floating rod 4 moves downward, the floating rod 4 will drive the lifting piston A 25 to move downward inside the shock absorber cylinder 1, thereby driving the damping spring B 15 on the surface of the floating rod 4 to be compressed, forming buffering and shock absorption. The limiting block A 16 on the side of the lifting piston A 25 will slide inside the limiting groove A 17. Therefore, the movement of the lifting piston A 25 can be limited by the arrangement of the limiting groove A 17, enabling the lifting piston A 25 to always perform a vertical lifting movement;

[0038] While the lifting piston A 25 moves downward, the lifting piston A 25 will drive the inner rod 18 and the lifting piston B 23 to move downward, making the lifting piston B 23 slide inside the fixed cylinder 24. At this time, the lifting piston B 23 will squeeze the damping spring A 22, forming two-stage shock absorption, thereby further increasing the buffering and shock absorption performance and ensuring the stability of the front shock absorber body during operation. The limiting block B 20 on the surface of the lifting piston B 23 will slide inside the limiting groove B 21. Therefore, the movement of the lifting piston B 23 can be limited by the arrangement of the limiting groove B 21, enabling the lifting piston B 23 to always move in a vertical state, which is convenient for use and has a better shock absorption effect.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A front shock absorber for a motorcycle, characterized in that, Comprising: A shock absorber cylinder (1), a collar (2) is provided at the top of the shock absorber cylinder (1), a cavity (19) is provided inside the shock absorber cylinder (1), and a fixed cylinder (24) is provided on the inner bottom wall of the cavity (19); A floating rod (4), the bottom of the floating rod (4) is connected with a lifting piston A (25), and the lifting piston A (25) is slidably connected inside the cavity (19); A hydraulic mechanism is provided inside the cavity (19), and the inner rod (18) of the hydraulic mechanism drives the lifting piston B (23) to move inside the fixed cylinder (24), so as to buffer the floating rod (4).

2. The front shock absorber of a motorcycle according to claim 1, characterized in that, The hydraulic mechanism includes a damping spring A (22) connected inside the fixed cylinder (24), the lifting piston B (23) is slidably connected inside the fixed cylinder (24), the damping spring A (22) is located at the bottom of the lifting piston B (23), the bottom of the inner rod (18) is connected to the top of the lifting piston B (23), the top of the inner rod (18) is connected to the bottom of the lifting piston A (25), and a damping spring B (15) is sleeved on the surface of the floating rod (4) and located at the top of the lifting piston A (25).

3. The front shock absorber of a motorcycle according to claim 2, characterized in that, A limiting block A (16) is connected to the side of the lifting piston A (25), and a limiting groove A (17) for slidably connecting the limiting block A (16) is provided inside the shock absorber cylinder (1).

4. A front shock absorber for a motorcycle according to claim 2, characterized in that, A limiting block B (20) is connected to the side of the lifting piston B (23), and a limiting groove B (21) for slidably connecting the limiting block B (20) is provided inside the fixed cylinder (24).

5. A front shock absorber for a motorcycle according to claim 1, characterized in that, A positioning column (13) is connected to the top of the floating rod (4), a fastening gasket (14) is sleeved on the surface of the positioning column (13), a fastening bolt (5) is connected to the top of the positioning column (13), and a damping spring C (26) is connected inside the positioning column (13) and located at the bottom of the fastening bolt (5).

6. The front shock absorber of a motorcycle according to claim 1, characterized in that, A fixed ear (6) is connected to the surface of the shock absorber cylinder (1), and a positioning hole (7) is provided on the surface of the fixed ear (6).

7. A front shock absorber for a motorcycle according to claim 1, characterized in that, A connecting ear (9) is connected to the surface of the shock absorber cylinder (1), and a positioning groove (10) is provided on the surface of the connecting ear (9).

8. A front shock absorber for a motorcycle according to claim 1, characterized in that, A sealing ring (3) is connected to the surface of the collar (2), and the floating rod (4) penetrates through the sealing ring (3).

9. A front shock absorber for a motorcycle according to claim 1, characterized in that, An anti-slip groove (8) is provided on the surface of the shock absorber cylinder (1), and a connecting groove (12) is provided on the surface of the shock absorber cylinder (1).

10. A front shock absorber for a motorcycle according to claim 1, characterized in that, A base (11) is connected to the bottom of the shock absorber cylinder (1).

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