Multi-angle adjustable motorcycle shock absorber

Abstract

The present application relates to the technical field of motorcycle shock absorber, and particularly relates to a multi-angle adjusting motorcycle shock absorber, which comprises a shock absorber main body, a mounting seat, a gas tank and a lifting lug, a first angle adjusting structure is arranged between the mounting seat and the gas tank, a second angle adjusting structure is arranged between the mounting seat and the lifting lug, the first angle adjusting structure comprises a hinged seat arranged on the mounting seat, a hinged part arranged on the gas tank, a hinged shaft penetrating into the hinged seat and the hinged part, a special-shaped nut threadedly connected with the hinged shaft, the hinged part is located between the hinged seat and the special-shaped nut, a plurality of ball holes are arranged on the end surface of the hinged part and the special-shaped nut in a uniform distribution along the hinged shaft, at least one mounting hole corresponding to the ball hole is arranged on the special-shaped nut, a wave bead screw threadedly connected with the mounting hole is arranged in the mounting hole, and the steel ball of the wave bead screw is arranged in the ball hole, and the present application has the beneficial effects of improving the adaptability and simplifying the operation steps.

Description

Technical Field

[0001] This invention relates to the field of motorcycle shock absorber technology, and more specifically to a multi-angle adjustable motorcycle shock absorber. Background Technology

[0002] Shock absorbers are a core component of motorcycles. They can buffer and dampen the impact and vibration caused by uneven road surfaces, ensuring a smooth and comfortable ride, extending the vehicle's lifespan, and improving handling stability.

[0003] The applicant previously filed an invention patent application with patent number CN202520687941.0, which disclosed a motorcycle shock absorber with an adjustable air tank angle. The shock absorber includes a shock absorber body and an air shock absorber device connected to the shock absorber body. The air shock absorber device includes a mounting base on the shock absorber body and an air tank connected to the mounting base. An air tank angle adjustment mechanism is provided between the mounting base and the air tank. The air tank angle adjustment mechanism includes a hinge seat on the mounting base, a hinge part on the air tank, and a hinge shaft passing through the hinge seat and the hinge part. The hinge shaft is a bolt structure with a nut at one end and a threaded part at the other end. The threaded end of the hinge shaft passes through the hinge seat and the hinge part and is connected to the nut, thus hinged the mounting base and the air tank together.

[0004] The above-mentioned motorcycle shock absorber still has the following problems in actual use: 1. A clamp is set at the end of the threaded part, which abuts against the nut. When adjusting the air tank angle, a tool is needed to remove the clamp, rotate the nut to release the axial locking force on the hinge shaft, and then manually adjust the air tank angle. After adjustment, the nut is tightened again and the clamp is put back on. This adjustment method is cumbersome. 2. A first stop tooth surface is provided on the surface of the hinge part corresponding to the second hinge seat. The surface of the second hinge seat is provided with a second stop tooth surface that engages with the first stop tooth surface. The engagement of the first stop tooth surface and the second stop tooth surface forms a mechanical interlock to prevent the air tank from rotating accidentally. However, such an anti-loosening structure increases the processing difficulty. 3. This shock absorber can only adjust the angle of the air tank. In actual installation, it is still not compatible with some motorcycle models. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a multi-angle adjustable motorcycle shock absorber that addresses the shortcomings of the prior art, improves adaptability, and simplifies operation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-angle adjustable motorcycle shock absorber, comprising a shock absorber body, a mounting seat disposed at the axial end of the shock absorber body, an air tank hinged to the mounting seat, and a lifting lug connected to the mounting seat. A first angle adjustment structure is provided between the mounting seat and the air tank, and a second angle adjustment structure is provided between the mounting seat and the lifting lug. The first angle adjustment structure includes a hinge seat disposed on the mounting seat, a hinge portion disposed on the air tank, a hinge shaft passing through the hinge seat and the hinge portion, and a shaped nut threadedly connected to the hinge shaft. The hinge portion is located between the hinge seat and the shaped nut. A plurality of ball holes evenly distributed along the hinge shaft are provided on the end face of the hinge portion that contacts the shaped nut. The shaped nut is provided with at least one mounting hole corresponding to the ball hole. A ball screw threadedly connected to the mounting hole is provided in the mounting hole, and the steel ball of the ball screw is placed in the ball hole.

[0007] The present invention, which has the above-mentioned features, adjusts the air tank by setting a first angle adjustment structure and adjusts the mounting base by setting a second angle adjustment structure. The two work together to meet the installation requirements of motorcycles of different specifications. The air tank is circumferentially locked by the embedded structure of the limiting member and the ball hole. With the axial clamping force of the special-shaped nut, a double locking structure is formed. When adjusting the angle of the air tank, the nut and the special-shaped nut are relatively stationary. The limiting of the air tank can be released by simply loosening the wave screw. After the adjustment is completed, the wave screw can be tightened. The operation is simple, the structure is simple, and the process is simple.

[0008] A further feature of the present invention is that the second angle adjustment structure includes several limiting holes disposed on the end face of the mounting base and at least one positioning pin disposed in the lifting lug. The limiting holes are evenly distributed along the axis of the shock absorber body. One end of the positioning pin extends into the limiting hole. The lifting lug is provided with a countersunk hole for accommodating the end of the fastener. The mounting base is provided with a connecting hole for threaded connection with the fastener.

[0009] The present invention, which has the above features, has a positioning pin that extends into a limiting hole to achieve precise circumferential angle indexing and positioning, and a fastener that passes through a countersunk hole and is threadedly locked into a connecting hole to ensure that the adjusted shock absorber remains stable under vehicle impact vibration.

[0010] A further provision of the present invention is as follows: a first oil delivery chamber is formed between the hinge shaft and the hinge portion, and a second oil delivery chamber is formed between the hinge shaft and the hinge seat. The hinge shaft is provided with an oil delivery channel extending along its axis, a first oil delivery hole communicating with the oil delivery channel, and a second oil delivery hole communicating with the oil delivery channel. The hinge portion is provided with an oil supply channel communicating with the first oil delivery hole. The hinge seat is provided with an oil inlet channel communicating with the second oil delivery hole. The shaped nut is provided with a threaded hole connected to the hinge shaft. One end of the hinge shaft is provided with a threaded section connected to the threaded hole. The opening of the oil delivery channel is located on the end face of the threaded section, and the end face of the threaded section abuts against the bottom of the threaded hole.

[0011] The present invention, which has the above-mentioned features, ensures that the oil passage remains unobstructed at any angle of the gas tank through the built-in oil passage structure.

[0012] A further feature of the present invention is that: the hinge shaft is provided with an oil supply sealing structure at the first oil delivery chamber, and the hinge shaft is provided with an oil inlet sealing structure at the second oil delivery chamber.

[0013] The present invention, which has the above-mentioned features, improves oil tightness by setting two independent sealing structures.

[0014] A further feature of the present invention is that the hinge shaft is provided with a first oil delivery ring groove at the first oil delivery hole and a second oil delivery ring groove at the second oil delivery hole.

[0015] The present invention, which has the above-mentioned features, increases the volume of the oil delivery chamber by setting an annular groove, reduces the oil flow resistance, improves the sensitivity of the damping adjustment response, and makes the shock absorber more effective.

[0016] A further feature of the present invention is that a nut is provided at the other end of the hinge shaft relative to the threaded section, and a groove for accommodating the nut is provided on the hinge seat.

[0017] The present invention, which has the above-mentioned features, restricts the circumferential rotation of the hinge shaft by providing a nut and a groove.

[0018] A further feature of the present invention is that the oil supply sealing structure includes two first sealing grooves spaced apart on the hinge portion and first sealing rings respectively disposed in the first sealing grooves, and the first oil delivery hole is disposed between the two first sealing rings. The oil inlet sealing structure includes two second sealing grooves spaced apart on the hinge seat and second sealing rings respectively disposed in the second sealing grooves, and the second oil delivery hole is disposed between the two second sealing rings.

[0019] The present invention, which has the above-mentioned features, adopts double sealing rings for both the oil supply sealing structure and the oil inlet sealing structure, and arranges the oil delivery hole in the middle area of ​​the two sealing rings to form a double-layer oil-tight protection.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0022] Figure 2 This is an exploded view of an embodiment of the present invention.

[0023] Figure 3 This is a cross-sectional view of an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the hinge shaft in an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the mounting base according to an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the irregular-shaped nut according to an embodiment of the present invention. Detailed Implementation

[0027] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0028] like Figures 1-6 The illustrated multi-angle adjustable motorcycle shock absorber includes a shock absorber body 1, a mounting base 2 disposed at the axial end of the shock absorber body 1, an air tank 3 hinged to the mounting base 2, and a lifting lug 4 connected to the mounting base 2. A first angle adjustment structure is provided between the mounting base 2 and the air tank 3, and a second angle adjustment structure is provided between the mounting base 2 and the lifting lug 4. The first angle adjustment structure includes a hinge seat 21 disposed on the mounting base 2, a hinge portion 31 disposed on the air tank 3, and a hinge shaft 5 passing through the hinge seat 21 and the hinge portion 31. The hinge shaft 5 is threaded to the irregular nut 6. The hinge part 31 is located between the hinge seat 21 and the irregular nut 6. The end face of the hinge part 31 that contacts the irregular nut 6 is provided with a plurality of ball holes 311 evenly distributed along the hinge shaft 5. The irregular nut 6 is provided with at least one mounting hole 61 corresponding to the ball hole 311. A limiting member 7 is provided in the mounting hole 61 with one end placed in the ball hole 311. In this embodiment, the mounting hole 61 is a threaded through hole, and the limiting member 7 is a ball screw. The mounting hole can also be a smooth hole, and the limiting member is a combination of a spring and a steel ball.

[0029] The second angle adjustment structure includes several limiting holes 22 provided on the end face of the mounting base 2 and at least one positioning pin 8 provided in the lifting lug 4. The positioning pin 8 is interference-fitted with the lifting lug 4. The limiting holes 22 are evenly distributed along the axis of the shock absorber body 1. One end of the positioning pin 8 extends into the limiting hole 22. The lifting lug 4 is provided with a countersunk hole 41 for accommodating the end of the fastener 9. The mounting base 2 is provided with a connecting hole 23 for threaded connection with the fastener 9. The fastener is preferably a bolt.

[0030] A first oil delivery chamber 314 is formed between the hinge shaft 5 and the hinge portion 31, and a second oil delivery chamber 214 is formed between the hinge shaft 5 and the hinge seat 21. The hinge shaft 5 has an oil delivery channel 51 extending along its axis, a first oil delivery hole 52 communicating with the oil delivery channel 51, and a second oil delivery hole 53 communicating with the oil delivery channel 51. The hinge shaft 5 has a first oil delivery annular groove 56 corresponding to the first oil delivery hole 52 and a second oil delivery annular groove 57 corresponding to the second oil delivery hole 53. The hinge portion 31 has an oil supply channel 312. 12 is connected to the first oil supply hole 52. The hinge seat 21 is provided with an oil inlet channel 211, which is connected to the second oil supply hole 53. The shaped nut 6 is provided with a threaded hole 62 connected to the hinge shaft 5. One end of the hinge shaft 5 is provided with a threaded section 54 connected to the threaded hole 62. The opening of the oil supply channel 51 is located on the end face of the threaded section 54. The end face of the threaded section 54 abuts against the bottom of the threaded hole 62. The other end of the hinge shaft 5 opposite to the threaded section 54 is provided with a nut 55. The hinge seat 21 is provided with a groove 212 for accommodating the nut 55.

[0031] The hinge shaft 5 is provided with an oil supply sealing structure at the first oil delivery chamber 314 and an oil inlet sealing structure at the second oil delivery chamber 214. The oil supply sealing structure includes two first sealing grooves 313 spaced apart on the hinge portion 31 and first sealing rings 10 respectively disposed in the first sealing grooves 313. The first oil delivery hole 52 is disposed between the two first sealing rings 10. The oil inlet sealing structure includes two second sealing grooves 213 spaced apart on the hinge seat 21 and second sealing rings 11 respectively disposed in the second sealing grooves 213. The second oil delivery hole 53 is disposed between the two second sealing rings 11.

[0032] When operating the first angle adjustment structure, slightly loosen the wave screw to allow the air tank to rotate. When the air tank rotates, the steel ball of the wave screw remains in contact with the end face of the hinge to form a gear feel. After rotating the air tank around the hinge axis to a suitable angle, tighten the wave screw to insert it into the ball hole. When operating the second angle adjustment structure, loosen the bolt to allow the lifting lug to rotate. After rotating the mounting base around the axis of the shock absorber body to a suitable angle, tighten the bolt to re-insert the positioning pin into the limiting hole.

Claims

1. A multi-angle adjustable motorcycle shock absorber, comprising a shock absorber body, a mounting base disposed at the axial end of the shock absorber body, an air tank hinged to the mounting base, and a lifting lug connected to the mounting base, characterized in that: A first angle adjustment structure is provided between the mounting base and the gas tank, and a second angle adjustment structure is provided between the mounting base and the lifting lug. The first angle adjustment structure includes a hinge seat provided on the mounting base, a hinge part provided on the gas tank, a hinge shaft passing through the hinge seat and the hinge part, and a special-shaped nut threadedly connected to the hinge shaft. The hinge part is located between the hinge seat and the special-shaped nut. The end face of the hinge part that contacts the special-shaped nut is provided with a plurality of ball holes evenly distributed along the hinge shaft. The special-shaped nut is provided with at least one mounting hole corresponding to the ball hole. A ball screw is threadedly connected to the mounting hole, and the steel ball of the ball screw is placed in the ball hole.

2. The multi-angle adjustable motorcycle shock absorber according to claim 1, characterized in that: The second angle adjustment structure includes several limiting holes on the end face of the mounting base and at least one positioning pin in the lifting lug. The limiting holes are evenly distributed along the axis of the shock absorber body. One end of the positioning pin extends into the limiting hole. The lifting lug is provided with a countersunk hole to accommodate the end of the fastener. The mounting base is provided with a connecting hole for threaded connection with the fastener.

3. A multi-angle adjustable motorcycle shock absorber according to claim 1 or 2, characterized in that: A first oil delivery chamber is formed between the hinge shaft and the hinge part, and a second oil delivery chamber is formed between the hinge shaft and the hinge seat. The hinge shaft has an oil delivery channel extending along its axis, a first oil delivery hole communicating with the oil delivery channel, and a second oil delivery hole communicating with the oil delivery channel. The hinge part has an oil supply channel communicating with the first oil delivery hole. The hinge seat has an oil inlet channel communicating with the second oil delivery hole. The shaped nut has a threaded hole communicating with the hinge shaft. One end of the hinge shaft has a threaded section communicating with the threaded hole. The opening of the oil delivery channel is located on the end face of the threaded section, and the end face of the threaded section abuts against the bottom of the threaded hole.

4. A multi-angle adjustable motorcycle shock absorber according to claim 3, characterized in that: The hinge shaft is provided with an oil supply sealing structure at the first oil delivery chamber, and the hinge shaft is provided with an oil inlet sealing structure at the second oil delivery chamber.

5. A multi-angle adjustable motorcycle shock absorber according to claim 3, characterized in that: The hinge shaft is provided with a first oil delivery ring groove at the first oil delivery hole and a second oil delivery ring groove at the second oil delivery hole.

6. A multi-angle adjustable motorcycle shock absorber according to claim 3, characterized in that: The hinge shaft is provided with a nut at the other end opposite the threaded section, and the hinge seat is provided with a groove to accommodate the nut.

7. A multi-angle adjustable motorcycle shock absorber according to claim 4, characterized in that: The oil supply sealing structure includes two first sealing grooves spaced apart on the hinge portion and first sealing rings respectively disposed in the first sealing grooves. The first oil delivery hole is disposed between the two first sealing rings. The oil inlet sealing structure includes two second sealing grooves spaced apart on the hinge seat and second sealing rings respectively disposed in the second sealing grooves. The second oil delivery hole is disposed between the two second sealing rings.

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