Damage self-detection intelligent motorcycle shock absorber

By designing an oil leakage sensing system in a motorcycle shock absorber, using the contact and insulation effect of the conductive contact plate and the perception projection device, timely detection and alarm of oil leakage is achieved, and the damping failure and safety hazards caused by oil leakage in the prior art are solved, and driving safety and handling performance are improved.

CN119975633AActive Publication Date: 2025-05-13BOHAN QUANZHOU MACHINERY CO LTD

Patent Information

Application Number
CN202510476334.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2025-05-13
Estimated Expiration
2045-04-16

AI Technical Summary

Technical Problem

Existing motorcycle shock absorbers may experience oil leakage problems after long-term use, resulting in damping failure and lack of oil leakage sensing function, which can easily lead to serious safety hazards.

Method used

A smart motorcycle shock absorber is designed, including a spring system, a damping system and an oil leakage sensing system. The oil leakage sensing system uses the contact and insulation effect between the conductive contact plate and the sensing projection device to detect oil stains and the sensing projection device, thereby sensing oil leakage.

Benefits of technology

It realizes timely detection and alarm of oil leakage, avoids safety hazards caused by the failure of shock absorber damping, and improves motorcycle handling performance and driving safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a damage self-detection intelligent motorcycle shock absorber, and relates to the technical field of shock absorbers, the damage self-detection intelligent motorcycle shock absorber comprises a spring system, a damping system and an oil leakage sensing system, the spring system comprises an upper spring mounting seat, a main spring and a lower spring mounting seat which are mounted in sequence, and the damping system is provided with a frame end part and a wheel end part; the frame end component and the wheel end component are arranged in a mutually sliding mode, the frame end component of the damping system is installed on the upper spring installation base, the wheel end component of the damping system is installed on the lower spring installation base, and the oil leakage sensing system comprises a conductive touch panel device and a sensing protrusion device. The conductive touch panel device is installed at the bottom of the frame end component, the sensing protrusion device is installed on the wheel end component, the conductive touch panel device conducts electricity when making contact with the sensing protrusion device, an oil attaching plane is arranged on the surface of the sensing protrusion device, and a circuit between the conductive touch panel device and the sensing protrusion device is blocked when oil stains exist on the oil attaching plane. And a damage self-checking function is realized.
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Description

Technical Field

[0001] The invention relates to the technical field of shock absorbers, in particular to a damage self-detection intelligent motorcycle shock absorber. Background Art

[0002] Many motorcycle shock absorbers have adjustable features to suit different road conditions and rider needs. Adjustment functions include adjusting preload, damping or rebound speed. For example, preload can be adjusted to accommodate riders of different weights, and damping can be adjusted to control the resistance during compression and rebound. Regular care and maintenance are also key to ensuring the performance of the shock absorber, including regular replacement of shock absorber oil and maintenance to avoid performance degradation caused by metal debris deposition.

[0003] Since the damping control of the shock absorber needs to be achieved by controlling the diameter of the shock absorber oil flow channel, the shock absorber may leak oil after long-term use. The change in driving experience is not obvious at the beginning of the leakage, but as the leakage continues, the shock absorber oil gradually leaks out and loses damping, eventually causing the damping of the shock absorber to fail. The existing shock absorber does not have the function of sensing oil leakage. Often by the time the driver feels it, the impact on the motorcycle's handling performance has reached a relatively serious level, posing a serious safety hazard to driving. Summary of the invention

[0004] In order to overcome the technical defects of the prior art, the present invention provides a damage self-detection intelligent motorcycle shock absorber with a damage self-detection function.

[0005] The technical solution adopted by the present invention is: A damage self-detecting intelligent motorcycle shock absorber comprises a spring system, a damping system and an oil leakage sensing system, wherein the spring system comprises an upper spring mounting seat, a main spring and a lower spring mounting seat which are installed in sequence, the damping system comprises a frame end component and a wheel end component, the frame end component and the wheel end component are arranged to slide with each other, the frame end component of the damping system is mounted on the upper spring mounting seat, and the wheel end component of the damping system is mounted on the lower spring mounting seat, the oil leakage sensing system comprises a conductive touch panel device and a sensing protrusion device, the conductive touch panel device is mounted on the bottom of the frame end component, the sensing protrusion device is mounted on the wheel end component, the conductive touch panel device conducts electricity when in contact with the sensing protrusion device, an oil-attaching plane is provided on the surface of the sensing protrusion device, the circuit between the conductive touch panel device and the sensing protrusion device is blocked when the oil-attaching plane is oily, and an electric key adapted to the conductive touch panel device is provided on the sensing protrusion device.

[0006] Preferably, the frame end component includes a main shock absorber cylinder and a nitrogen tank device, the nitrogen tank device is installed on the main shock absorber cylinder, the nitrogen tank device includes an oil chamber and a nitrogen chamber, the main shock absorber cylinder is connected to the oil chamber, the wheel end component slides along the main shock absorber cylinder in a sealed manner, and a main oil seal is provided between the wheel end component and the main shock absorber cylinder.

[0007] Preferably, the wheel end component comprises a damping rod and a damping piston, wherein the damping piston is mounted on the damping rod, and the damping piston seals and slides along the frame end component.

[0008] Preferably, the conductive touch plate device comprises two elastic conductive plates, each of which is mounted on the bottom of the frame end member, each of which moves relative to the sensing protrusion device, and the movement path of each of which passes through the sensing protrusion device.

[0009] Preferably, the sensing protrusion device includes a protruding nut and an oil guide sleeve, the protruding nut is mounted on the wheel end component through a threaded pair, the oil guide sleeve is mounted on the protruding nut, an oil-containing cotton layer is provided between the oil guide sleeve and the damping rod of the wheel end component, and a unified oil outlet hole is opened on the oil guide sleeve.

[0010] Preferably, the raised nut is thick in the middle and thin at both ends, and an electric key adapted to the elastic conductive plate is provided on the raised nut. When the elastic conductive plate presses the electric key, the electric key is energized, so that the raised nut is charged.

[0011] Preferably, the oil leakage sensing system further comprises an oil scraping device, wherein the oil scraping device is an oil scraping sleeve installed on the frame end component, and the oil scraping sleeve slides along the wheel end component.

[0012] Preferably, the wheel end component is provided with an avoidance groove for avoiding the conductive touch plate device.

[0013] The beneficial effects of the present invention are: The spring system includes an upper spring mounting seat, a main spring and a lower spring mounting seat which are installed in sequence, the main spring is used to absorb impact, the damping system includes a frame end component and a wheel end component, the frame end component and the wheel end component are arranged to slide with each other, the frame end component of the damping system is installed on the upper spring mounting seat, and the wheel end component of the damping system is installed on the lower spring mounting seat, and the frame end component and the wheel end component generate damping during the mutual movement, the oil leakage sensing system includes a conductive touch plate device and a sensing protrusion device, the conductive touch plate device is installed at the bottom of the frame end component, the sensing protrusion device is installed on the wheel end component, the conductive touch plate device conducts electricity when in contact with the sensing protrusion device, an oil-attaching plane is provided on the surface of the sensing protrusion device, and the circuit between the conductive touch plate device and the sensing protrusion device is blocked when there is oil on the oil-attaching plane, after the oil leaks, since the sensing protrusion device will be stained with oil, an insulation effect will occur after the conductive touch plate device contacts the sensing protrusion device, causing the conductive touch plate device to be powered off, thereby sensing the oil leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0016] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0017] Figure 4 Schematic diagram of the structure of the protrusion sensing device.

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the protrusion sensing device.

[0019] Description of reference numerals: 1. Spring system; 11. Upper spring mounting seat; 12. Main spring; 13. Lower spring mounting seat; 2. Damping system; 21. Frame end parts; 211. Main shock absorber cylinder; 212. Nitrogen tank device; 22. Wheel end parts; 221. Avoidance groove; 222. Damping rod; 223. Damping piston; 3. Oil leakage sensing system; 31. Conductive touch plate device; 311. Elastic conductive plate; 32. Sensing protrusion device; 321. Protruding nut; 3211. Electric key; 322. Oil guide sleeve; 3221. Unified oil outlet hole; 323. Oil-containing cotton layer; 33. Oil scraper sleeve. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1 — Figure 5As shown, this embodiment provides a damage self-detecting intelligent motorcycle shock absorber, including a spring system 1, a damping system 2 and an oil leakage sensing system 3, the spring system 1 includes an upper spring mounting seat 11, a main spring 12 and a lower spring mounting seat 13 installed in sequence, the main spring 12 is used to absorb impact, the damping system 2 has a frame end component 21 and a wheel end component 22, the frame end component 21 and the wheel end component 22 are arranged to slide with each other, the frame end component 21 of the damping system 2 is installed on the upper spring mounting seat 11, the wheel end component 22 of the damping system 2 is installed on the lower spring mounting seat 13, and the frame end component 21 and the wheel end component 22 generate a friction force during the mutual movement. Damping, the oil leakage sensing system 3 includes a conductive touch panel device 31 and a sensing protrusion device 32. The conductive touch panel device 31 is installed at the bottom of the frame end component 21, and the sensing protrusion device 32 is installed on the wheel end component 22. The conductive touch panel device 31 conducts electricity when in contact with the sensing protrusion device 32. An oil-attaching plane is provided on the surface of the sensing protrusion device 32. When there is oil on the oil-attaching plane, the circuit between the conductive touch panel device 31 and the sensing protrusion device 32 is blocked. After the oil leaks, since the sensing protrusion device 32 will be stained with oil, an insulation effect will occur after the conductive touch panel device 31 contacts the sensing protrusion device 32, causing the conductive touch panel device 31 to lose power, thereby sensing the oil leak.

[0021] Specifically, the frame end component 21 includes a main shock absorber cylinder 211 and a nitrogen tank device 212. The nitrogen tank device 212 is installed on the main shock absorber cylinder 211. The nitrogen tank device 212 includes an oil chamber and a nitrogen chamber. The main shock absorber cylinder 211 is connected to the oil chamber, thereby generating damping during the sliding process of the wheel end component 22. The wheel end component 22 slides along the main shock absorber cylinder 211 in a sealed manner. A main oil seal is provided between the wheel end component 22 and the main shock absorber cylinder 211 to prevent leakage of shock absorber oil. The greater the nitrogen pressure filled in the nitrogen chamber, the greater the support for the wheel end component 22, and the preload of the shock absorber is adjusted by controlling the nitrogen pressure filled in the nitrogen chamber.

[0022] Specifically, the wheel end component 22 includes a damping rod 222 and a damping piston 223. The damping piston 223 is installed on the damping rod 222. The damping piston 223 slides along the main shock absorber cylinder 211 of the frame end component 21 in a sealed manner, thereby pushing the shock absorber oil to flow from the main shock absorber cylinder 211 into the oil chamber. When the shock absorber oil flows, damping is generated, thereby causing the shock absorber to produce a damping effect.

[0023] Specifically, the conductive touch panel device 31 includes two elastic conductive plates 311, each of which is installed at the bottom of the frame end component 21. Each elastic conductive plate 311 moves relative to the sensing protrusion device 32, and the movement path of each elastic conductive plate 311 passes through the sensing protrusion device 32. When the movement path of the elastic conductive plate 311 passes through the sensing protrusion device 32, it conducts electricity. However, when oil leaks, the sensing protrusion device 32 will be contaminated with oil. The oil-attached plane referred to above is the surface of the sensing protrusion device 32. The oil-attached plane is contaminated with shock-absorbing oil, which leads to insulation. Since there is no current, the vehicle-mounted controller external to the conductive touch panel device 31 senses that there is no electrical signal input, and thus senses oil leakage.

[0024] Specifically, the sensing protrusion device 32 includes a protruding nut 321 and an oil guide sleeve 322. The protruding nut 321 is mounted on the wheel end component 22 through a threaded pair, and the oil guide sleeve 322 is mounted on the protruding nut 321 to guide the shock absorber oil. In order to absorb all the leaked shock absorber oil and make the leaked damping oil reliably block the electrical signal, an oil-containing cotton layer 323 is provided between the oil guide sleeve 322 and the damping rod 222 of the wheel end component 22. It is made of rubber and is provided with a unified oil outlet hole 3221 on the oil guide sleeve 322. After the elastic conductive plate 311 is pressed onto the oil guide sleeve 322, the oil guide sleeve 322 squeezes the oil-containing cotton layer 323, thereby causing the shock-absorbing oil in the oil-containing cotton layer 323 to leak out from the unified oil outlet hole 3221. Subsequently, the elastic conductive plate 311 is contaminated with the shock-absorbing oil after passing through the unified oil outlet hole 3221, thereby blocking the electrical connection between the elastic conductive plate 311 and the raised nut 321.

[0025] Specifically, the raised nut 321 is thick in the middle and thin at both ends to prevent the conductive touch plate device 31 from rigidly hitting the raised nut 321. In order to prevent the raised nut 321 from being always energized, an electric key 3211 adapted to the elastic conductive plate 311 is provided on the raised nut 321. When the elastic conductive plate 311 presses on the electric key 3211, the electric key 3211 is energized to make the raised nut 321 charged. In other words, the test is only performed when the elastic conductive plate 311 presses on the electric key 3211 to avoid a false alarm of oil leakage when the load is light because the raised nut 321 and the elastic conductive plate 311 will never contact each other and no current will pass through when there is no oil leakage. The conductive path is sequentially an elastic conductive plate 311, an electric key 3211, a raised nut 321 and another elastic conductive plate 311. Since the two elastic conductive plates 311 are externally connected to a commercially available vehicle-mounted controller, the electrical signal is transmitted to the vehicle-mounted controller. The vehicle-mounted controller is electrically connected to the electric key 3211. When the electric key 3211 is energized but the elastic conductive plate 311 and the raised nut 321 are insulated due to shock-absorbing oil, the vehicle-mounted controller senses that the electric key 3211 is under pressure and there is no electrical signal between the elastic conductive plate 311 and the raised nut 321, thereby realizing intelligent detection.

[0026] Specifically, the oil leakage sensing system 3 also includes an oil scraper device, which is an oil scraper sleeve 33 installed on the frame end component 21. The oil scraper sleeve 33 slides along the wheel end component 22, thereby accelerating the scraping of the leaked oil to prevent the leaked oil from being smeared on the damping rod 222, thereby preventing dust from gradually contaminating and covering the leaked shock absorber oil, and preventing the shock absorber oil from losing the ability to flow downward.

[0027] Specifically, the wheel end component 22 is provided with an avoidance groove 221 for avoiding the conductive touch plate device 31 , so as to prevent the conductive touch plate device 31 from hitting the lower spring mounting seat 13 .

[0028] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Damage self-detection intelligent motorcycle shock absorber, characterized in that: It includes a spring system, a damping system and an oil leakage sensing system, wherein the spring system includes an upper spring mounting seat, a main spring and a lower spring mounting seat which are installed in sequence, the damping system has a frame end component and a wheel end component, the frame end component and the wheel end component are arranged to slide with each other, the frame end component of the damping system is installed on the upper spring mounting seat, and the wheel end component of the damping system is installed on the lower spring mounting seat, the oil leakage sensing system includes a conductive touch plate device and a sensing protrusion device, the conductive touch plate device is installed on the bottom of the frame end component, the sensing protrusion device is installed on the wheel end component, the conductive touch plate device conducts electricity when in contact with the sensing protrusion device, an oil-attaching plane is provided on the surface of the sensing protrusion device, and the circuit between the conductive touch plate device and the sensing protrusion device is blocked when there is oil on the oil-attaching plane, and an electric key adapted to the conductive touch plate device is provided on the sensing protrusion device.

2. The damage self-detecting intelligent motorcycle shock absorber according to claim 1 is characterized in that: The frame end component includes a main shock absorber cylinder and a nitrogen tank device, the nitrogen tank device is installed on the main shock absorber cylinder, the nitrogen tank device includes an oil chamber and a nitrogen chamber, the main shock absorber cylinder is connected to the oil chamber, the wheel end component slides along the main shock absorber cylinder in a sealed manner, and a main oil seal is provided between the wheel end component and the main shock absorber cylinder.

3. The damage self-detecting intelligent motorcycle shock absorber according to claim 1 is characterized in that: The wheel end component comprises a damping rod and a damping piston, wherein the damping piston is mounted on the damping rod and the damping piston seals and slides along the frame end component.

4. The damage self-detecting intelligent motorcycle shock absorber according to claim 1, characterized in that: The conductive touch panel device includes two elastic conductive plates, each of which is installed at the bottom of the frame end component. Each of the elastic conductive plates moves relative to the sensing protrusion device, and the movement path of each of the elastic conductive plates passes through the sensing protrusion device.

5. The damage self-detecting intelligent motorcycle shock absorber according to claim 1, characterized in that: The sensing protrusion device includes a protruding nut and an oil guide sleeve. The protruding nut is installed on the wheel end component through a threaded pair, and the oil guide sleeve is installed on the protruding nut. An oil-containing cotton layer is provided between the oil guide sleeve and the damping rod of the wheel end component, and a unified oil outlet hole is opened on the oil guide sleeve.

6. The damage self-detecting intelligent motorcycle shock absorber according to claim 5 is characterized in that: The raised nut is thick in the middle and thin at both ends. An electric key adapted to the elastic conductive plate is arranged on the raised nut. When the elastic conductive plate presses the electric key, the electric key is energized, so that the raised nut is charged.

7. The damage self-detecting intelligent motorcycle shock absorber according to claim 1, characterized in that: The oil leakage sensing system further comprises an oil scraping device, which is an oil scraping sleeve installed on the frame end component, and the oil scraping sleeve slides along the wheel end component.

8. The damage self-detecting intelligent motorcycle shock absorber according to claim 1, characterized in that: The wheel end component is provided with an avoidance groove for avoiding the conductive touch plate device.

Citation Information

Patent Citations

  • Liquid leak detection device

    CN108350971A

  • Built-in piezoelectric energy storage type oil leakage detection and early warning hydraulic shock absorber

    CN112343956A

  • Automobile chassis damping device

    CN117404423A

  • Sensor, monitoring system and monitoring method for monitoring leakage of non-conductive oil

    CN119595199A

  • Intelligently adjustable motorcycle shock absorber

    CN119778423A

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