An adjustable motorcycle shock absorber

Abstract

This utility model belongs to the field of shock absorber technology, and particularly relates to an adjustable motorcycle shock absorber; an upper connecting block with a connecting hole in the middle; a support block located below the upper connecting block; an adjustable valve assembly fixedly connected to the support block; a damping cylinder located below the support block; an adjuster connected to the external thread of the damping cylinder; a shock-absorbing spring surrounding the outside of the damping cylinder, with its upper end connected to the support block and its lower end connected to the adjuster; and a lower connecting block located at the lower end of the damping cylinder with a connecting hole. The damping adjustment is flexible and precise. Through the cooperation of the adjustable valve assembly, the adjuster threadedly connected to the damping cylinder, and the bypass pipe, it can quickly adapt to different road conditions or riding needs, achieving multi-level fine adjustment of the damping force and improving shock absorption adaptability.

Description

Technical Field

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

[0002] Shock absorbers reduce bumps during motorcycle riding and improve riding stability and comfort by suppressing spring rebound and absorbing vibration energy. However, existing technologies still have some shortcomings: the damping force adjustment is inflexible, lacking a multi-path fine adjustment mechanism, making it difficult to adapt to different needs; the anti-cavitation performance is weak, lacking a separate piston and multi-chamber pressure balancing, making it prone to cavitation due to pressure fluctuations; and the spring and damping coordination is poor, making it unable to dynamically match load changes. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned technical problems by providing an adjustable motorcycle shock absorber that achieves adjustable shock absorption and anti-cavitation effects.

[0004] In view of this, the present invention provides an adjustable motorcycle shock absorber, comprising: The upper connecting block has a connecting hole in the middle; The support block is located below the upper connecting block; The adjustable valve assembly is fixedly connected to the support block; The damping cylinder is located below the support block; The regulator is connected to the external thread of the damping cylinder; The shock-absorbing spring surrounds the outside of the damping cylinder, with its upper end connected to the support block and its lower end connected to the adjuster. The lower connecting block is located at the lower end of the damping cylinder and has a connecting hole.

[0005] Furthermore, the above technical solution also includes: The bypass pipe is located outside the damping cylinder, with its upper end connected to the adjustable valve assembly and its lower end connected to the damping cylinder.

[0006] In the above technical solution, the adjustable valve assembly further includes: Both the compression damping regulating valve and the extension damping regulating valve are installed on the bypass pipe.

[0007] Furthermore, the above technical solution also includes: The seal is located at the lower end of the outer side of the damping cylinder.

[0008] In the above technical solution, the damping cylinder further includes: The damping piston is slidably mounted inside the damping cylinder; The piston rod is connected to a damping piston at the upper end and to a lower connecting block at the lower end.

[0009] In the above technical solution, the damping cylinder further includes: The piston is slidably mounted inside the piston rod.

[0010] In the above technical solution, the damping cylinder further includes: The first chamber is located above the damping piston; The second chamber is located between the inner wall of the damping cylinder and the outer wall of the piston rod. The third chamber is located between the damping piston and the release piston; The fourth chamber is located between the separating piston and the lower connecting block.

[0011] In the above technical solution, the damping piston further includes: Damped piston housing; A transverse flow guide hole is located inside the damping piston housing; Longitudinal flow guide holes are located inside the damping piston housing; The upper control is located inside the damping piston housing at the top, and has a through hole in the middle; The lower control is located inside the damping piston housing at the bottom, and has a through hole in the middle.

[0012] In the above technical solution, the damping piston further includes: The central flow cavity is located between the upper and lower controls.

[0013] In the above technical solution, the damping piston further includes: The upper pad is a stacked structure and is located below the upper control; The lower pad is a stacked structure and is positioned above the lower control.

[0014] The beneficial effects of this utility model are as follows: 1. The damping adjustment is flexible and precise. Through the adjustable valve assembly, the adjuster connected to the damping cylinder threadedly and the bypass pipe, it can quickly adapt to different road conditions or riding needs, realize multi-level fine adjustment of damping force, and improve shock absorption adaptability.

[0015] 2. Excellent anti-cavitation performance: The separation piston and the four-chamber structure work together to effectively balance the pressure in each chamber, reduce pressure fluctuations during compression or extension, reduce the risk of cavitation, and extend the service life of the shock absorber.

[0016] 3. Efficient and stable fluid flow: The transverse and longitudinal guide holes, the central flow chamber, and the upper and lower control through holes in the damping piston form an optimized flow path. Combined with the upper and lower gaskets of the stacked structure, it ensures stable fluid flow resistance and good consistency of damping force output, thereby improving riding smoothness. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a partial enlarged view of the present invention; The markings in the diagram represent: upper connecting block 1, support block 2, adjustable valve assembly 3, damping cylinder 4, adjuster 5, shock absorber spring 6, lower connecting block 7, bypass pipe 8, compression damping adjusting valve 31, extension damping adjusting valve 32, seal 9, damping piston 41, piston rod 42, separation piston 43, first chamber 44, second chamber 45, third chamber 46, fourth chamber 47, damping piston housing 411, transverse guide hole 412, longitudinal guide hole 413, upper control 414, lower control 415, middle flow chamber 416, upper gasket 417, and lower gasket 418. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0019] Example 1: This embodiment provides an adjustable motorcycle shock absorber, including: Upper connecting block 1 has a connecting hole in the middle; Support block 2 is located below the upper connecting block 1; Adjustable valve assembly 3 is fixedly connected to support block 2; Damping cylinder 4 is located below support block 2; Regulator 5 is connected to the external thread of damping cylinder 4; The shock-absorbing spring 6 surrounds the outside of the damping cylinder 4, with its upper end connected to the support block 2 and its lower end connected to the adjuster 5; The lower connecting block 7 is located at the lower end of the damping cylinder 4 and has a connecting hole.

[0020] In this embodiment, the connecting holes of the upper connecting block 1 and the lower connecting block 7 facilitate quick docking with the motorcycle body, making assembly convenient; the adjuster 5 is threadedly connected to the outer periphery of the damping cylinder 4, and together with the shock-absorbing spring 6 surrounding the outside of the damping cylinder 4, the preload of the shock-absorbing spring 6 can be easily adjusted by rotating the adjuster 5, thereby initially adapting to the damping requirements under different loads, and laying the foundation for subsequent fine adjustment of the damping force. The overall structure is compact and highly reliable, and can effectively transmit and buffer the vibration energy during motorcycle operation.

[0021] Example 2: This embodiment provides an adjustable motorcycle shock absorber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0022] Also includes: The bypass pipe 8 is located outside the damping cylinder 4, with its upper end connected to the adjustable valve assembly 3 and its lower end connected to the damping cylinder 4.

[0023] In this embodiment, a bypass pipe 8 is added outside the damping cylinder 4, with its upper end connected to the adjustable valve assembly 3 and its lower end connected to the damping cylinder 4, providing an additional flow path for the fluid inside the damping cylinder 4. Compared to traditional shock absorbers that rely solely on a single channel inside the damping piston 41 for fluid flow, the bypass pipe 8 design can divert some of the fluid, reducing the pressure in the main flow path and avoiding damping force fluctuations caused by fluid flow congestion. Simultaneously, the bypass pipe 8, in conjunction with the adjustable valve assembly 3, can further expand the range and precision of damping adjustment, allowing the shock absorber to optimize fluid flow efficiency and improve damping response speed when dealing with road surfaces of varying bumpiness.

[0024] Example 3: This embodiment provides an adjustable motorcycle shock absorber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0025] Adjustable valve assembly 3 includes: Compression damping regulating valve 31 and extension damping regulating valve 32 are both installed on bypass pipe 8.

[0026] In this embodiment, the adjustable valve assembly 3 is specifically configured as a compression damping regulating valve 31 and a extension damping regulating valve 32, both installed on the bypass pipe 8, realizing independent damping adjustment of the shock absorber's compression and extension strokes. During motorcycle operation, when the shock absorber is in compression mode and encounters a bumpy road surface, the compression damping regulating valve 31 precisely controls the flow rate of fluid in the bypass pipe 8, providing appropriate compression damping force to avoid the impact caused by excessive compression. When the shock absorber is in extension mode and rebounds after going over a pothole, the extension damping regulating valve 32 adjusts the fluid return speed, providing suitable extension damping force to prevent excessive rebound and resulting body sway. The combined effect of these two valves ensures that the shock absorber can output stable and appropriate damping force at different operating strokes, significantly improving riding smoothness.

[0027] Example 4: This embodiment provides an adjustable motorcycle shock absorber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0028] Also includes: Seal 9 is located at the lower end of the outer side of damping cylinder 4.

[0029] In this embodiment, a seal 9 is provided on the lower outer side of the damping cylinder 4, which can effectively enhance the sealing performance of the damping cylinder 4. The inside of the damping cylinder 4 provides storage and flow space for fluids such as hydraulic oil. The seal 9 can prevent fluid from leaking from the gap below the damping cylinder 4, avoiding the decrease or even failure of the shock absorber's damping performance due to fluid loss. At the same time, the seal 9 can also prevent external dust, mud, moisture and other impurities from entering the inside of the damping cylinder 4, preventing impurities from wearing down the inner wall of the damping cylinder 4, the damping piston 41 and other components, and extending the service life of the shock absorber. It is especially suitable for harsh riding environments such as muddy and rainy days.

[0030] Example 5: This embodiment provides an adjustable motorcycle shock absorber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0031] Damping cylinder 4 includes: The damping piston 41 is slidably disposed within the damping cylinder 4; The piston rod 42 is connected to the damping piston 41 at the upper end and to the lower connecting block 7 at the lower end.

[0032] In this embodiment, a sliding damping piston 41 is provided inside the damping cylinder 4, and the upper end of the piston rod 42 is connected to the damping piston 41, while the lower end is connected to the lower connecting block 7, thus constructing the core motion and damping transmission structure of the shock absorber. When the motorcycle vibrates, the lower connecting block 7 drives the piston rod 42 to move up and down, thereby pushing the damping piston 41 to slide inside the damping cylinder 4. The damping piston 41 cooperates with the inner wall of the damping cylinder 4, generating damping force by squeezing or releasing the internal fluid, converting the vibration energy into the heat energy of the fluid and dissipating it. The connection design of the piston rod 42 ensures the coaxiality of the movement of the damping piston 41, avoiding the damping piston 41 from shifting or getting stuck during sliding, ensuring the stability of the damping force output, and enabling the shock absorber to continuously and reliably buffer vibrations.

[0033] Example 6: This embodiment provides an adjustable motorcycle shock absorber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0034] Damping cylinder 4 also includes: The separator piston 43 is slidably disposed within the piston rod 42.

[0035] In this embodiment, a sliding separation piston 43 is added inside the piston rod 42, which solves the problem of cavitation caused by pressure fluctuations in the chambers of traditional shock absorbers. The separation piston 43 can slide freely within the piston rod 42 with pressure changes. When a pressure difference occurs between the chambers in the damping cylinder 4 due to the operation of the shock absorber, the separation piston 43 can balance the pressure by sliding, preventing the fluid from vaporizing and forming bubbles due to excessively low pressure in one chamber. Cavitation can cause abnormal noise, a sudden drop in damping force, and even damage to components. The design of the separation piston 43 can effectively suppress cavitation and improve the working stability and durability of the shock absorber.

[0036] Example 7: This embodiment provides an adjustable motorcycle shock absorber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0037] Damping cylinder 4 also includes: The first chamber 44 is located above the damping piston 41; The second chamber 45 is located between the inner wall of the damping cylinder 4 and the outer wall of the piston rod 42; The third chamber 46 is located between the damping piston 41 and the release piston 43; The fourth chamber 47 is located between the separating piston 43 and the lower connecting block 7.

[0038] In this embodiment, the first to fourth chambers 47 are divided within the damping cylinder 4 and piston rod 42 by the cooperation of the separating piston 43 and the damping piston 41. Each chamber has a clear division of labor and works in concert, optimizing the pressure balance and fluid management of the shock absorber. The first chamber 44 and the second chamber 45 are the main fluid flow and damping generation chambers, responsible for providing basic damping force when the shock absorber is working. The third chamber 46 and the fourth chamber 47 serve as pressure regulation and buffer chambers. In particular, the fourth chamber 47 can accommodate some gas. With the sliding of the separating piston 43, it further enhances the pressure balance capability, avoids sudden rises and falls in pressure in each chamber, and provides sufficient storage space for fluid flow, ensuring smooth fluid circulation and improving the accuracy of damping adjustment.

[0039] Example 8: This embodiment provides an adjustable motorcycle shock absorber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] The damping piston 41 includes: Damping piston housing 411; A transverse guide hole 412 is provided inside the damping piston housing 411; A longitudinal guide hole 413 is provided inside the damping piston housing 411; The upper control 414 is located inside the damping piston housing 411 at the top, and has a through hole in the middle; The lower control 415 is located inside the damping piston housing 411 at the bottom, and has a through hole in the middle.

[0041] In this embodiment, a transverse guide hole 412, a longitudinal guide hole 413, and upper and lower control elements 414 and 415 with through holes in the middle are provided inside the damping piston housing 411, forming an efficient fluid flow network inside the damping piston 41. The transverse guide hole 412 enables lateral fluid exchange between the damping piston housing 411 and the second chamber 45, while the longitudinal guide hole 413 connects the damping piston housing 411 and the third chamber 46. Combined with the through holes in the middle of the upper and lower control elements 414 and 415, fluid can flow in multiple directions and along multiple paths inside the damping piston 41, avoiding excessive or unstable fluid flow resistance caused by a single channel. Simultaneously, the upper and lower control elements 414 and 415 also guide and limit fluid flow, ensuring uniform damping force output and improving the consistency of the shock absorber's damping effect.

[0042] Example 9: This embodiment provides an adjustable motorcycle shock absorber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0043] The damping piston 41 also includes: The central flow cavity 416 is located between the upper control 414 and the lower control 415.

[0044] In this embodiment, a central flow chamber 416 is provided between the upper control 414 and the lower control 415, providing a buffer space for the fluid inside the damping piston 41. When fluid flows into the damping piston 41 from the transverse guide hole 412, the longitudinal guide hole 413, or the through holes of the upper and lower control 415, the central flow chamber 416 can temporarily store the fluid, avoiding pressure fluctuations caused by the fluid directly impacting the components. At the same time, the central flow chamber 416 can fully mix the fluids flowing in from different paths and smoothly distribute them to each outflow channel, ensuring smooth fluid flow inside the damping piston 41, reducing energy loss caused by turbulence, further improving the stability of the damping force output, and enabling the shock absorber to maintain good damping performance under high-frequency vibration.

[0045] Example 10: This embodiment provides an adjustable motorcycle shock absorber, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0046] The damping piston 41 also includes: The upper pad 417 is a stacked structure and is located below the upper control 414; The lower pad 418 is a stacked structure and is positioned above the lower control 415.

[0047] In this embodiment, the upper gasket 417 and the lower gasket 418 are configured as a stacked structure and are respectively installed below the upper control 414 and above the lower control 415, allowing for precise adjustment of the damping force inside the damping piston 41. The stacked gaskets have deformable characteristics. When fluid flows between the upper control 414 and the central flow chamber 416, and between the lower control 415 and the central flow chamber 416, the fluid pressure will push the stacked gaskets to deform. The degree of deformation of the stacked gaskets determines the flow resistance of the fluid. By adjusting the number, thickness, or material of the stacked gaskets, the magnitude of the damping force can be flexibly changed to adapt to the needs of motorcycles with different displacements and different usage scenarios. At the same time, the stacked structure has high stability and is not prone to fatigue damage during long-term use, ensuring the long-term consistency of the damping force output and extending the service life of the damping piston 41.

[0048] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An adjustable motorcycle shock absorber characterized by, include The upper connecting block (1) has a connecting hole in the middle; Support block (2) is located below the upper connecting block (1); Adjustable valve assembly (3) is fixedly connected to support block (2); A damping cylinder (4) is located below the support block (2); The regulator (5) is connected to the external thread of the damping cylinder (4); The shock-absorbing spring (6) surrounds the outside of the damping cylinder (4), with its upper end connected to the support block (2) and its lower end connected to the adjuster (5); The lower connecting block (7) is located at the lower end of the damping cylinder (4) and has a connecting hole.

2. Adjustable motorcycle shock absorber according to claim 1, characterized in that Also includes: The bypass pipe (8) is located outside the damping cylinder (4), with its upper end connected to the adjustable valve assembly (3) and its lower end connected to the damping cylinder (4).

3. Adjustable motorcycle shock absorber according to claim 1, characterized in that The adjustable valve assembly (3) includes: The compression damping regulating valve (31) and the extension damping regulating valve (32) are both installed on the bypass pipe (8).

4. Adjustable motorcycle shock absorber according to claim 1, characterized in that Also includes: The seal (9) is located at the lower end of the outer side of the damping cylinder (4).

5. Adjustable motorcycle shock absorber according to claim 1, characterized in that The damping cylinder (4) includes: The damping piston (41) is slidably disposed inside the damping cylinder (4); The piston rod (42) is connected to the damping piston (41) at the upper end and to the lower connecting block (7) at the lower end.

6. Adjustable motorcycle shock absorber according to claim 5, characterized in that The damping cylinder (4) further includes: The separation piston (43) is slidably disposed within the piston rod (42).

7. Adjustable motorcycle shock absorber according to claim 6, characterized in that The damping cylinder (4) further includes: The first chamber (44) is located above the damping piston (41); The second chamber (45) is located between the inner wall of the damping cylinder (4) and the outer wall of the piston rod (42); The third chamber (46) is located between the damping piston (41) and the release piston (43); The fourth chamber (47) is located between the separating piston (43) and the lower connecting block (7).

8. Adjustable motorcycle shock absorber according to claim 5, characterized in that The damping piston (41) includes: Damped piston housing (411); A transverse guide hole (412) is provided inside the damping piston housing (411); A longitudinal guide hole (413) is provided inside the damping piston housing (411); The upper control (414) is located above the inside of the damping piston housing (411), and has a through hole in the middle; The lower control (415) is located inside the damping piston housing (411) at the bottom, and has a through hole in the middle.

9. Adjustable motorcycle shock absorber according to claim 8, characterized in that The damping piston (41) further includes: The central flow cavity (416) is located between the upper control (414) and the lower control (415).

10. Adjustable motorcycle shock absorber according to claim 8, characterized in that The damping piston (41) further includes: The upper pad (417) is a stacked structure and is located below the upper control (414); The lower pad (418) is a stacked structure and is positioned above the lower control (415).

Images