Intelligent anti-grounding motorcycle shock absorber

By introducing an inertial diameter reduction system into the motorcycle shock absorber, the problem of the inability to adjust the damping in real time in the prior art is solved, and the damping is automatically increased during large impacts, avoiding bottoming, and improving the driving stability and comfort of the motorcycle.

CN120274013AActive Publication Date: 2025-07-08BOHAN QUANZHOU MACHINERY CO LTD

Patent Information

Application Number
CN202510747782.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2025-07-08
Estimated Expiration
2045-06-06

AI Technical Summary

Technical Problem

The existing motorcycle shock absorbers cannot adjust the damping in real time according to the road conditions during riding, resulting in poor bottoming resistance.

Method used

The spring system, damping system and inertial diameter reduction system are adopted. The inertial rod device and the air pressure generator automatically increase damping during large impacts to avoid bottoming out.

Benefits of technology

It realizes automatic increase in damping during large impacts, avoiding the shock absorber from bottoming out, and improving the driving stability and comfort of the motorcycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to an intelligent anti-grounding motorcycle shock absorber, and relates to the technical field of shock absorbers, the intelligent anti-grounding motorcycle shock absorber comprises a spring system, a damping system and an inertia reducing 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; a frame end component of the damping system is installed on the upper spring installation base, a wheel end component of the damping system is installed on the lower spring installation base, the wheel end component and the frame end component slide through a sliding pair, a damping channel is formed in the frame end component, and the inertia reducing system comprises an inertia rod device, an air pressure generating device and a reducing device. The reducing device is installed on the damping channel, the inertia rod device is installed on the wheel end component in a sliding mode, the air pressure generating device is installed on the wheel end component, the inertia rod device is in transmission connection with the air pressure generating device, and the air pressure generating device is communicated with the inertia reducing system and can prevent grounding.
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Description

Technical Field

[0001] The invention relates to the technical field of shock absorbers, in particular to an intelligent anti-bottoming shock absorber for motorcycles. Background Art

[0002] The motorcycle shock absorber is an important component of the motorcycle. Its main function is to absorb and reduce the impact and vibration of the motorcycle during driving, thereby improving the stability and comfort of driving.

[0003] Many motorcycle front shock absorbers have adjustable functions to suit different road conditions and rider needs. Adjustment functions include adjusting preload, damping or rebound speed. For example, by adjusting the preload to accommodate riders of different weights, by adjusting the damping to control the resistance during compression and rebound.

[0004] The above-mentioned damping adjustment is only performed before riding, and cannot be adjusted at any time according to the road conditions after riding, thus resulting in poor anti-bottoming function of the existing shock absorber. Summary of the invention

[0005] In order to overcome the technical defects of the prior art, the present invention provides an intelligent anti-bottoming motorcycle shock absorber, which can prevent bottoming out.

[0006] The technical solution adopted by the present invention is: The invention discloses an intelligent anti-bottoming motorcycle shock absorber, comprising a spring system, a damping system and an inertia variable diameter 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 of the damping system is installed on the upper spring mounting seat, the wheel end component of the damping system is installed on the lower spring mounting seat, the wheel end component slides with the frame end component via a sliding pair, the frame end component has a damping channel, the inertia variable diameter system comprises an inertia rod device, an air pressure generating device and a variable diameter device, the variable diameter device is installed on the damping channel, the inertia rod device is slidably installed on the wheel end component, the air pressure generating device is installed on the wheel end component, the inertia rod device is transmission-connected to the air pressure generating device, and the air pressure generating device is connected to the inertia variable diameter system.

[0007] 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.

[0008] 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.

[0009] Preferably, the inertial rod device includes an inertial sliding rod and a pre-compression spring, the thrust force of the pre-compression spring is equal to the gravity of the inertial sliding rod, the pre-compression spring is used to overcome the gravity of the inertial sliding rod, and the inertial sliding rod is provided with a sliding groove that cooperates with the air pressure generating device.

[0010] Preferably, the air pressure generating device includes an air pressure generating airbag and an air pressure generating plate, the air pressure generating plate is installed on the air pressure generating airbag, the air pressure generating plate is provided with an air pressure generating protrusion adapted to the sliding groove, and the air pressure generating airbag is connected to the diameter-changing device.

[0011] Preferably, the air pressure generating protrusion points to the middle of the sliding groove.

[0012] Preferably, the reducing device includes a reducing airbag, a reducing screw plug and a reducing piston, the reducing piston slides along the reducing screw plug, the reducing piston points to the damping channel, the reducing screw plug is installed on the damping channel, the reducing airbag is connected to the air pressure generating airbag, and the reducing airbag is installed on the reducing screw plug.

[0013] Preferably, the air pressure generating device is connected to the inertial variable diameter system via a spiral air pipe.

[0014] 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 and store energy. The damping system has a frame end component and a wheel end component. 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 wheel end component slides with the frame end component through a sliding pair. The frame end component has a damping channel. When the wheel end component slides along the frame end component, it pushes the damping oil to flow in the damping channel. The damping channel is used to generate damping. The inertial variable diameter system includes An inertia rod device, an air pressure generating device and a reducing device, the reducing device is installed on the damping channel, the inertia rod device is slidably installed on the wheel end component, the air pressure generating device is installed on the wheel end component, the inertia rod device is transmission-connected to the air pressure generating device, and the air pressure generating device is connected to the inertia reducing system. When subjected to a large impact, the inertia rod device drives the air pressure generating device to increase the pressure, causing the reducing device to operate and thereby reduce the diameter of the damping channel. The biggest difference between this shock absorber and the conventional shock absorber is that this shock absorber can automatically increase the damping when subjected to a large impact to avoid bottoming out. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic cross-sectional view of the structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the present invention.

[0017] Figure 3 is Figure 1 The enlarged schematic view of position A in

[0018] Figure 4 is Figure 1 The enlarged schematic view of position B in

[0019] Figure 5 is the schematic view of the principle of the inertia variable diameter system.

[0020] Description of the reference numerals in the drawings: 1. Spring system; 11. Upper spring mounting seat; 12. Main spring; 13. Lower spring mounting seat; 2. Damping system; 21. Frame end component; 211. Damping channel; 212. Main shock absorber cylinder; 2121. Main oil seal; 213. Nitrogen tank device; 2131. Oil chamber; 2132. Nitrogen chamber; 22. Wheel end component; 221. Damping rod; 222. Damping piston; 3. Inertia variable diameter system; 31. Inertia rod device; 311. Inertia sliding rod; 3111. Sliding groove; 312. Preloading spring; 32. Pneumatic generating device; 321. Pneumatic generating airbag; 322. Pneumatic generating plate; 3221. Pneumatic generating protrusion; 33. Variable diameter device; 331. Variable diameter airbag; 332. Variable diameter piston; 333. Variable diameter plug; 34. Spiral air pipe. Specific embodiments

[0021] The present invention will be further described below with reference to the accompanying drawings: Such as Figure 1 — Figure 5As shown, this embodiment provides an intelligent anti-bottoming motorcycle shock absorber, including a spring system 1, a damping system 2 and an inertial variable diameter system 3. The spring system 1 includes an upper spring mounting seat 11, a main spring 12 and a lower spring mounting seat 13 which are installed in sequence. The main spring 12 is used to absorb impact and store energy. The damping system 2 has a frame end component 21 and a wheel end component 22. The frame end component 21 of the damping system 2 is installed on the upper spring mounting seat 11, and the wheel end component 22 of the damping system 2 is installed on the lower spring mounting seat 13. The wheel end component 22 slides with the frame end component 21 through a sliding pair. The frame end component 21 has a damping channel 211. When the wheel end component 22 slides along the frame end component 21, it pushes the damping oil in the damping channel 211. The inertial variable diameter system 3 includes an inertial rod device 31, an air pressure generating device 32 and a variable diameter device 33. The variable diameter device 33 is installed on the damping channel 211. The inertial rod device 31 is slidably installed on the wheel end component 22. The air pressure generating device 32 is installed on the wheel end component 22. The inertial rod device 31 is transmission-connected with the air pressure generating device 32. The air pressure generating device 32 is connected with the inertial variable diameter system 3. When subjected to a large impact, the inertial rod device 31 drives the air pressure generating device 32 to increase the pressure, so that the variable diameter device 33 is actuated to reduce the diameter of the damping channel 211. The biggest difference between this shock absorber and a conventional shock absorber is that this shock absorber can automatically increase the damping when subjected to a large impact to avoid bottoming out.

[0022] Specifically, the frame end component 21 includes a main shock absorber cylinder 212 and a nitrogen tank device 213. The nitrogen tank device 213 is installed on the main shock absorber cylinder 212. The nitrogen tank device 213 includes an oil chamber 2131 and a nitrogen chamber 2132. The main shock absorber cylinder 212 is connected to the oil chamber 2131 through a damping channel 211 to generate damping. The wheel end component 22 slides along the main shock absorber cylinder 212 in a sealed manner. A main oil seal 2121 is provided between the wheel end component 22 and the main shock absorber cylinder 212 to prevent oil leakage.

[0023] Specifically, the wheel end component 22 includes a damping rod 221 and a damping piston 222. The damping piston 222 is installed on the damping rod 221. The damping piston 222 slides along the main shock absorber cylinder 212 of the frame end component 21 in a sealed manner and then pushes the piston oil through the damping channel 211. The damping rod 221 is rotatably mounted with a motorcycle tire. When the tire passes through a bumpy section, the damping rod 221 pushes the damping piston 222 to slide along the main shock absorber cylinder 212, so that the piston oil passes through the damping channel 211 and generates damping.

[0024] Specifically, the inertia rod device 31 includes an inertia sliding rod 311 and a preloading spring 312. The pushing force of the preloading spring 312 is equal to the gravity of the inertia sliding rod 311. The preloading spring 312 is used to overcome the gravity of the inertia sliding rod 311. Under the pushing of the preloading spring 312, when the damping rod 221 moves due to road bumps, the inertia sliding rod 311 slides along the damping rod 221, thereby causing the sliding groove 3111 to undulate. A sliding groove 3111 cooperating with the air pressure generating device 32 is provided on the inertia sliding rod 311. The sliding groove 3111 is used to generate air pressure. After the sliding groove 3111 undulates following the inertia sliding rod 311, the sliding groove 3111 pushes the air pressure generating device 32 to pressurize. After the air pressure generating device 32 is pressurized, the variable diameter device 33 changes the diameter of the damping channel 211, thereby realizing an automatic increase in the damping of the shock absorber on bumpy roads.

[0025] Specifically, the air pressure generating device 32 includes an air pressure generating airbag 321 and an air pressure generating plate 322. The air pressure generating plate 322 is installed on the air pressure generating airbag 321. An air pressure generating protrusion 3221 adapted to the sliding groove 3111 is provided on the air pressure generating plate 322. After the sliding groove 3111 undulates following the inertia sliding rod 311, the sliding groove 3111 pushes the air pressure generating protrusion 3221 to squeeze the air pressure generating plate 322, causing the air pressure inside the air pressure generating airbag 321 to increase. Also, because the air pressure generating airbag 321 is connected to the variable diameter device 33, the air pressure generating airbag 321 pushes the variable diameter device 33 to act, thereby changing the diameter of the damping channel 211. The higher the degree of bumpiness, the higher the degree of actuation of the variable diameter device 33 by the air pressure generating airbag 321, making the damping channel 211 smaller and the damping of the shock absorber higher.

[0026] Specifically, the air pressure generating protrusion 3221 points to the middle of the sliding groove 3111, increasing the air pressure inside the air pressure generating airbag 321 during large bumps, increasing the damping of the damping channel 211, and preventing bottoming out.

[0027] Specifically, the variable diameter device 33 includes a variable diameter airbag 331, a variable diameter plug 333, and a variable diameter piston 332. The variable diameter piston 332 slides along the variable diameter plug 333. The variable diameter piston 332 points to the damping channel 211. The variable diameter plug 333 is installed on the damping channel 211. The variable diameter airbag 331 is installed on the variable diameter plug 333. The variable diameter airbag 331 is used to push the variable diameter piston 332 to act. The variable diameter airbag 331 is connected to the air pressure generating airbag 321, enabling the air pressure change of the air pressure generating airbag 321 to be immediately feedback to the variable diameter airbag 331, realizing rapid damping adjustment.

[0028] Specifically, the air pressure generating device 32 and the inertia variable diameter system 3 are connected through a spiral air pipe 34. The spiral air pipe 34 adapts to the undulation of the damping rod 221, ensuring stable air supply.

[0029] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. Intelligent anti-bottoming motorcycle shock absorber, characterized in that, The invention comprises a spring system, a damping system and an inertia variable diameter 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 of the damping system is installed on the upper spring mounting seat, the wheel end component of the damping system is installed on the lower spring mounting seat, the wheel end component slides with the frame end component via a sliding pair, a damping channel is provided in the frame end component, the inertia variable diameter system comprises an inertia rod device, an air pressure generating device and a variable diameter device, the variable diameter device is installed on the damping channel, the inertia rod device is slidably installed on the wheel end component, the air pressure generating device is installed on the wheel end component, the inertia rod device is transmission-connected to the air pressure generating device, and the air pressure generating device is communicated with the inertia variable diameter system.

2. The intelligent anti-bottoming motorcycle shock absorber according to claim 1, wherein, 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 intelligent anti-bottoming motorcycle shock absorber according to claim 1, 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 intelligent anti-bottoming motorcycle shock absorber according to claim 1, characterized in that, The inertial rod device includes an inertial sliding rod and a pre-compression spring. The thrust force of the pre-compression spring is equal to the gravity of the inertial sliding rod. The pre-compression spring is used to overcome the gravity of the inertial sliding rod. The inertial sliding rod is provided with a sliding groove that cooperates with the air pressure generating device.

5. The intelligent anti-bottoming motorcycle shock absorber according to claim 4, characterized in that, The air pressure generating device includes an air pressure generating airbag and an air pressure generating plate. The air pressure generating plate is installed on the air pressure generating airbag. The air pressure generating plate is provided with an air pressure generating protrusion adapted to the sliding groove. The air pressure generating airbag is connected to the diameter-changing device.

6. The intelligent anti-bottoming motorcycle shock absorber according to claim 5, characterized in that The air pressure generating protrusion points to the middle of the sliding groove.

7. The intelligent anti-bottoming motorcycle shock absorber according to claim 5, characterized in that, The variable diameter device includes a variable diameter airbag, a variable diameter plug and a variable diameter piston, the variable diameter piston slides along the variable diameter plug, the variable diameter piston points to the damping channel, the variable diameter plug is installed on the damping channel, the variable diameter airbag is connected to the air pressure generating airbag, and the variable diameter airbag is installed on the variable diameter plug.

8. The intelligent anti-bottoming motorcycle shock absorber according to claim 1, characterized in that, The air pressure generating device is connected to the inertial variable diameter system through a spiral air pipe.

Citation Information

Patent Citations

  • Damage self-detection intelligent motorcycle shock absorber

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