Motorcycle front shock absorber with good stability

Abstract

The utility model relates to a motorcycle front shock absorber with good stability relates to shock equipment technical field, including shock absorber cylinder, piston rod of one end sliding insertion in shock absorber cylinder, shock absorbing spring of the sleeve setting on the outer wall of shock absorber cylinder, the output end coaxial movement of shock absorbing spring one end and piston rod, the outer wall of shock absorber cylinder is provided with the adjusting assembly for adjusting the length of shock absorbing spring, its characterized in that: adjusting assembly includes the sleeve setting on the outer wall of shock absorber cylinder, the limit slot is set up on the sleeve, the limit piece is set up movably on the sleeve, the limit piece and limit slot abut, limit its axial movement, the abutment piece is connected on the limit piece, for abutting the other end of shock absorbing spring, the utility model discloses through adjusting assembly, can more firmly limit the length of shock absorbing spring, to cope with different load and riding demand.

Description

Technical Field

[0001] This application relates to the field of shock absorption equipment technology, and in particular to a motorcycle front shock absorber with good stability. Background Technology

[0002] The front shock absorber of a motorcycle is an important mechanical device installed between the front wheel and the frame. It mainly consists of shock absorber springs, dampers (such as hydraulic pistons, oil-air mixture structures, etc.), piston rods, sleeves, and other components. Its core function is to absorb impact energy through the elastic deformation of the springs, and then gradually dissipate this energy (converting it into heat energy, etc.) through the dampers, thereby mitigating the impact of road bumps on the motorcycle and the rider.

[0003] Currently, a Chinese utility model patent application published on April 20, 2021, with publication number CN 213017411U, provides a high-stability automotive shock absorber steel tube. It includes a shock absorber comprising a piston rod slidably inserted into the steel tube; a spring disposed between the piston rod and the steel tube, wherein when the spring deforms, one end of the spring moves synchronously with the piston rod; the other end of the spring is mounted on the steel tube; the spring is mounted on the steel tube via an adjusting structure, and the adjusting structure is mounted on the outside of the steel tube; wherein the adjusting structure is slidably disposed on the outside of the steel tube, and the adjusting structure includes a sleeve and a lower push plate, with the lower push plate rotatably disposed on the outside of the sleeve. The beneficial effect is that by utilizing the threaded engagement between the sleeve and the lower push plate in an adjusting structure, the force originally acting directly on the steel tube can be transferred to the adjusting structure, thereby improving the service life of the steel tube and reducing the processing cost of the steel tube.

[0004] In the high-stability automotive shock absorber steel tube of related technologies, the sleeve and the connecting cylinder are connected by threads during use. The connecting cylinder is connected to the push plate and abuts against the bottom of the spring. During use, the sleeve cannot precisely limit the position of the connecting cylinder. During vehicle driving, relative displacement may occur due to bumps. The core function of the shock absorber is to buffer the impact of the road surface through the combination of spring compression and rebound and damping structure. The connecting cylinder controls the preload by abutting against the bottom of the spring. However, the relative displacement between the sleeve and the connecting cylinder will cause the spring preload to be unstable. The displacement may cause the abutting force of the connecting cylinder against the spring to suddenly increase or decrease, which will disrupt the original buffering rhythm of the spring and cause the vibration amplitude to increase abnormally when the vehicle goes over bumps.

[0005] Therefore, it is necessary to propose a motorcycle front shock absorber with good stability to solve the above problems. Utility Model Content

[0006] This application provides a motorcycle front shock absorber with good stability. It aims to improve the technical problem in the related technology where the spring preload is unstable, which causes the spring's resistance force to suddenly increase or decrease, disrupting the original buffering rhythm of the spring and resulting in an abnormally large vibration amplitude when bumping.

[0007] This application provides a motorcycle front shock absorber with good stability, including a shock absorber cylinder; a piston rod with one end slidably inserted into the shock absorber cylinder; a shock absorber spring sleeved on the outer wall of the shock absorber cylinder; one end of the shock absorber spring moving coaxially with the output end of the piston rod; and an adjustment component for adjusting the length of the shock absorber spring provided on the outer wall of the shock absorber cylinder. The adjustment component includes a sleeve disposed on the outer wall of the shock absorber cylinder, a limiting groove formed on the sleeve, a limiting member movably disposed on the sleeve, the limiting member abutting against the limiting groove to restrict its axial movement, and an abutting member engaged on the limiting member for abutting against the other end of the shock absorber spring.

[0008] The technical solutions described above in this application embodiment have at least the following technical effects: during the process of using a motorcycle front shock absorber to dampen the motorcycle, one end of the shock absorber is connected to the frame and one end of the piston rod is connected to the wheel hub, which facilitates shock absorption. By allowing the limiting member to move up and down on the limiting groove on the sleeve, the axial movement of the adjustment component is restricted by the limiting member and the limiting groove, thereby more firmly adjusting the length of the shock absorber spring to cope with different loads and riding needs.

[0009] In this embodiment, the limiting component includes a first semi-circular ring clamp and a second semi-circular ring clamp. One end of the first semi-circular ring clamp and the second semi-circular ring clamp are rotatably connected, and the other end of both the first and second semi-circular ring clamps is provided with an extension. A locking component is rotatably provided on the extension of the first semi-circular ring clamp, and a connecting groove is provided on the extension of the second semi-circular ring clamp. The first and second semi-circular ring clamps are brought closer together by the locking component and the connecting groove, thereby limiting the first and second semi-circular ring clamps on the sleeve.

[0010] This technical solution, during the clamping process via the limiting component, involves rotating and clamping the first and second semi-circular ring clamps together. The locking component on its extension pulls the distance between the first and second semi-circular ring clamps closer, thereby limiting the first and second semi-circular ring clamps on the sleeve and preventing axial movement.

[0011] In this embodiment, a limiting block is provided on the inner wall of both the first semi-circular ring clamp and the second semi-circular ring clamp. The limiting block abuts against the limiting groove to restrict the axial movement of the first semi-circular ring clamp and the second semi-circular ring clamp.

[0012] This technical solution uses the cooperation between the limiting block and the limiting groove to clamp the first semi-circular ring clamp and the second semi-circular ring clamp. The cooperation between the limiting block and the limiting groove forms a mechanical hard limit. Through the physical interlocking of the concave and convex structure, the axial relative displacement between the two semi-rings is directly restricted. Together with the friction force, it forms a "double insurance" to completely eliminate the risk of the clamp itself loosening or misaligning.

[0013] In this embodiment, the abutting member includes a snap-fit ​​plate movably disposed within the first semi-circular ring clamp and the second semi-circular ring clamp, an extending ring extending outwardly disposed on the snap-fit ​​plate, and an abutting plate disposed at the end of the extending ring away from the snap-fit ​​plate.

[0014] With this technical solution, the snap-fit ​​plate directly engages with the inside of the semi-circular ring clamp, while the abutment plate is connected to the snap-fit ​​plate through an extended ring. The abutment plate is used to abut against the shock-absorbing spring, avoiding possible motion interference between the first and second semi-circular ring clamps during the locking process.

[0015] In this embodiment, both the first semi-circular ring clamp and the second semi-circular ring clamp have snap-fit ​​grooves on their inner walls, and the snap-fit ​​plate is snapped onto the first semi-circular ring clamp and the second semi-circular ring clamp through the snap-fit ​​grooves.

[0016] With this technical solution, the diameter of the snap-fit ​​groove is larger than the diameter of the snap-fit ​​plate, which facilitates the tightening between the first semi-circular ring clamp and the second semi-circular ring clamp, while also facilitating the connection between the abutment and the first and second semi-circular ring clamps.

[0017] In this embodiment, the lower end of the abutment plate is fixed with a plurality of reinforcing ribs arranged in a uniform circumferential array, and the reinforcing ribs are fixedly connected to the extending ring.

[0018] Through this technical solution, the reinforcing ribs form a "skeleton-abutment plate-extension ring" triangular support structure to reinforce the abutment plate, preventing it from bending or denting due to excessive stress.

[0019] In this embodiment, the locking component includes a rotating screw that is rotatably disposed on the extension of the first semi-circular ring clamp, and a rotating nut that is threadedly connected to the rotating screw and sleeved on the rotating screw.

[0020] With this technical solution, when the nut is rotated, it will move along the axial direction of the screw, approaching or moving away from the extension of the first semi-circular ring clamp, thereby causing the extension of the second semi-circular ring clamp to tighten or loosen from the extension of the first semi-circular ring clamp, which facilitates installation and adjustment. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of a motorcycle front shock absorber with good stability provided in an embodiment of this application; Figure 2 A three-dimensional structural schematic diagram of the adjustment component provided in the embodiments of this application; Figure 3 This is an exploded view of the adjustment component provided in an embodiment of this application; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0022] The following are the labeling elements in the figure: 1. Shock absorber cylinder; 11. Piston rod; 12. Shock absorber spring; 2. Adjustment assembly; 21. Sleeve; 22. Limiting groove; 23. Limiting component; 231. First semi-circular ring clamp; 232. Second semi-circular ring clamp; 233. Extension part; 234. Locking component; 2341. Rotating screw; 2342. Rotating nut; 235. Connecting groove; 236. Snap-fit ​​groove; 24. Abutment component; 241. Snap-fit ​​plate; 242. Extension ring; 243. Abutment plate; 244. Reinforcing rib; 25. Limiting block. Detailed Implementation

[0023] In the high-stability automotive shock absorber steel tube of related technologies, the sleeve and the connecting cylinder are connected by threads during use. The connecting cylinder is connected to the push plate and abuts against the bottom of the spring. During use, the sleeve cannot precisely limit the position of the connecting cylinder. During vehicle driving, relative displacement may occur due to bumps. The core function of the shock absorber is to buffer the impact of the road surface through the combination of spring compression and rebound and damping structure. The connecting cylinder controls the preload by abutting against the bottom of the spring. However, the relative displacement between the sleeve and the connecting cylinder will cause the spring preload to be unstable. The displacement may cause the abutting force of the connecting cylinder against the spring to suddenly increase or decrease, which will disrupt the original buffering rhythm of the spring and cause the vibration amplitude to increase abnormally when the vehicle goes over bumps.

[0024] Based on this, in order to improve the technical problem in the related technology that the spring preload is unstable, which causes the spring's resisting force to suddenly increase or decrease, disrupting the original buffering rhythm of the spring and thus causing an abnormal increase in vibration amplitude during bumps, the embodiments of this application provide the following solutions.

[0025] Please refer to the following: Figures 1 to 4This application provides a motorcycle front shock absorber with good stability. The motorcycle front shock absorber with good stability includes a shock absorber cylinder 1; a piston rod 11 with one end slidably inserted into the shock absorber cylinder 1; a shock absorber spring 12 sleeved on the outer wall of the shock absorber cylinder 1; one end of the shock absorber spring 12 moves coaxially with the output end of the piston rod 11; and an adjustment component 2 for adjusting the length of the shock absorber spring 12 is provided on the outer wall of the shock absorber cylinder 1. The adjustment component 2 is characterized in that: the adjustment component 2 includes a sleeve 21 provided on the outer wall of the shock absorber cylinder 1, a limiting groove 22 is provided on the sleeve 21, a limiting member 23 is movably provided on the sleeve 21, the limiting member 23 abuts against the limiting groove 22 to restrict its axial movement, and an abutment member 24 is engaged on the limiting member 23 for abutting against the other end of the shock absorber spring 12.

[0026] This application provides a motorcycle front shock absorber with good stability. During the process of using the motorcycle front shock absorber to dampen the motorcycle, one end of the shock absorber cylinder 1 is connected to the frame, and one end of the piston rod 11 is connected to the wheel hub to facilitate shock absorption. By allowing the limiting member 23 to move up and down on the limiting groove 22 on the sleeve 21, the sleeve 21 is connected to the shock absorber cylinder 1 by bolts. The limiting member 23 and the limiting groove 22 restrict the axial movement of the adjustment component 2, thereby more stably adjusting the length of the shock absorber spring 12 to cope with different loads and riding needs. When the shock absorber spring 12 is longer, the initial tension of the spring is weak, the shock absorber is "softer", and the filtering effect of minor bumps is good, which is suitable for urban commuting or low-speed cruising. However, at high speeds, the body may sway due to insufficient support. When the shock absorber spring 12 is shorter, the initial tension of the spring is strong, the shock absorber is "stiffer", and it can provide stronger support, which is suitable for high-speed riding, sports riding or carrying heavy loads. However, the filtering effect of minor road vibrations will decrease, and the comfort may be reduced.

[0027] In this embodiment, the limiting member 23 includes a first semi-circular ring clamp 231 and a second semi-circular ring clamp 232. One end of the first semi-circular ring clamp 231 and the second semi-circular ring clamp 232 are rotatably connected. The other end of the first semi-circular ring clamp 231 and the second semi-circular ring clamp 232 are each provided with an extension 233. A locking member 234 is rotatably provided on the extension 233 of the first semi-circular ring clamp 231. A connecting groove 235 is provided on the extension 233 of the second semi-circular ring clamp 232. The first semi-circular ring clamp 231 and the second semi-circular ring clamp 232 are brought closer together by the locking member 234 and the connecting groove 235, thereby limiting the first semi-circular ring clamp 231 and the second semi-circular ring clamp 232 on the sleeve 21.

[0028] With this configuration, during the engagement process via the limiting member 23, the first semi-circular ring clamp 231 and the second semi-circular ring clamp 232 are rotated and engaged. The locking member 234 on its extension 233 brings the first semi-circular ring clamp 231 and the second semi-circular ring clamp 232 closer together, thus limiting them to the sleeve 21 and preventing axial movement. The opening angle of the two semi-rings can be adjusted via the locking member 234, accommodating sleeves 21 within a certain diameter range. The core components are only two semi-rings and a set of locking members 234, without complex transmissions or precision parts, resulting in low manufacturing difficulty and controllable cost. After releasing the locking member 234, the clamps can be easily rotated or slid to their fixed position on the sleeve 21.

[0029] In this embodiment, limit blocks 25 are provided on the inner walls of the first semi-circular ring clamp 231 and the second semi-circular ring clamp 232. The limit blocks 25 abut against the limit groove 22 to restrict the axial movement of the first semi-circular ring clamp 231 and the second semi-circular ring clamp 232.

[0030] This configuration, through the engagement of the limiting block 25 and the limiting groove 22, secures the first semi-circular ring clamp 231 and the second semi-circular ring clamp 232, preventing axial displacement. Thus, the engagement of the limiting block 25 and the limiting groove 22 forms a mechanical hard limit, directly restricting the relative axial displacement between the two semi-rings through the physical interlocking of the concave and convex structures. Together with friction, this constitutes a "double insurance," completely eliminating the risk of the clamps loosening or misaligning.

[0031] In this embodiment, the abutment member 24 includes a snap-fit ​​plate 241 movably disposed within the first semi-circular ring clamp and the second semi-circular ring clamp, an extension ring 242 extending outwardly disposed on the snap-fit ​​plate 241, and an abutment plate 243 disposed at the end of the extension ring 242 away from the snap-fit ​​plate 241.

[0032] In this configuration, the snap-fit ​​plate 241 directly engages with the interior of the semi-circular ring clamp, while the abutment plate 243 is connected to the snap-fit ​​plate 241 via the extension ring 242. The abutment plate 243 abuts against the damping spring 12, preventing potential motion interference between the first and second semi-circular ring clamps 231 and 232 during locking. Thus, when the two semi-circular ring clamps are tightened by the locking member 234, they undergo radial contraction deformation. Since the damping spring 12 possesses both rigidity and elastic tension, if the clamps directly contact the spring, positional deviations, spring elasticity, or inconsistent clamp deformation directions could lead to a "hard-on-hard" interference between the clamps and the spring. The abutment plate 243, acting as an "intermediate transition member," connects to the clamp via the extension ring 242, adapting to the surface shape of the spring and the clamp deformation direction. This ensures that the clamps are not obstructed by the spring during locking, smoothly completing the clamping action and preventing incomplete locking or component jamming due to interference.

[0033] In this embodiment, the inner walls of the first semi-circular ring clamp 231 and the second semi-circular ring clamp 232 are provided with snap-fit ​​grooves 236, and the snap-fit ​​plate 241 is snapped onto the first semi-circular ring clamp and the second semi-circular ring clamp through the snap-fit ​​grooves 236.

[0034] With this configuration, the diameter of the snap-fit ​​groove 236 is larger than the diameter of the snap-fit ​​plate 241, facilitating both the tightening of the first semi-circular ring clamp 231 and the second semi-circular ring clamp 232, and the connection between the abutment member 24 and the first and second semi-circular ring clamps 231 and 232. Thus, the snap-fit ​​groove 236 provides a clear "installation track" for the snap-fit ​​plate 241, restricting its radial movement within the clamp's inner wall.

[0035] In this embodiment, the lower end of the abutment plate 243 is fixed with a plurality of reinforcing ribs 244 arranged in a uniform circumferential array, and the reinforcing ribs 244 are fixedly connected to the extending ring 242.

[0036] With this configuration, the reinforcing rib 244 forms a "skeleton-like reinforcement" of the abutment plate 243 through the triangular support structure of "rib - abutment plate 243 - extension ring 242", preventing it from bending or denting due to excessive force.

[0037] In this embodiment, the locking member 234 includes a rotating screw 2341 rotatably disposed on the extension 233 of the first semi-circular ring clamp 231, and a rotating nut 2342 sleeved on the rotating screw 2341 and threadedly connected to the rotating screw 2341.

[0038] With this configuration, when the nut 2342 is rotated, the nut moves axially along the screw, approaching or moving away from the extension 233 of the first semi-circular ring clamp 231. This causes the extension 233 of the second semi-circular ring clamp 232 to tighten or loosen from the extension 233 of the first semi-circular ring clamp 231, facilitating installation and adjustment. Thus, through the precise adjustability, ease of operation, self-locking stability, and structural adaptability of the threaded drive, the locking requirements of the split clamp are perfectly met, ensuring reliable fixation of the clamp during operation while allowing for convenient installation, disassembly, and adjustment.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A motorcycle front shock absorber with good stability, comprising a shock absorber cylinder (1); a piston rod (11) with one end slidably inserted into the shock absorber cylinder (1); a shock absorber spring (12) sleeved on the outer wall of the shock absorber cylinder (1); one end of the shock absorber spring (12) coaxially moving with the output end of the piston rod (11), and an adjusting component (2) for adjusting the length of the shock absorber spring (12) provided on the outer wall of the shock absorber cylinder (1), characterized in that: The adjustment assembly (2) includes a sleeve (21) disposed on the outer wall of the shock absorber (1). A limiting groove (22) is provided on the sleeve (21). A limiting member (23) is movably disposed on the sleeve (21). The limiting member (23) abuts against the limiting groove (22) to restrict its axial movement. An abutting member (24) is snapped onto the limiting member (23) for abutting against the other end of the shock absorber spring (12).

2. The motorcycle front shock absorber with good stability according to claim 1, characterized in that: The limiting member (23) includes a first semi-circular ring clamp (231) and a second semi-circular ring clamp (232). One end of the first semi-circular ring clamp (231) and the second semi-circular ring clamp (232) are rotatably connected. The other end of the first semi-circular ring clamp (231) and the second semi-circular ring clamp (232) are provided with an extension (233). A locking member (234) is rotatably provided on the extension (233) of the first semi-circular ring clamp (231). A connecting groove (235) is provided on the extension (233) of the second semi-circular ring clamp (232). The first semi-circular ring clamp (231) and the second semi-circular ring clamp (232) are brought closer together by the locking member (234) and the connecting groove (235), so that the first semi-circular ring clamp (231) and the second semi-circular ring clamp (232) are limited on the sleeve (21).

3. A motorcycle front shock absorber with good stability according to claim 2, characterized in that: Limiting blocks (25) are provided on the inner walls of the first semi-circular ring clamp (231) and the second semi-circular ring clamp (232). The limiting blocks (25) abut against the limiting groove (22) to restrict the axial movement of the first semi-circular ring clamp (231) and the second semi-circular ring clamp (232).

4. A motorcycle front shock absorber with good stability according to claim 1, 2, or 3, characterized in that: The abutment (24) includes a snap-fit ​​plate (241) movably disposed within the first semi-circular ring clamp (231) and the second semi-circular ring clamp (232), an extension ring (242) extending outwardly on the snap-fit ​​plate (241), and an abutment plate (243) disposed at the end of the extension ring (242) away from the snap-fit ​​plate (241).

5. A motorcycle front shock absorber with good stability according to claim 4, characterized in that: Both the first semi-circular ring clamp (231) and the second semi-circular ring clamp (232) have snap-fit ​​grooves (236) on their inner walls. The snap-fit ​​plate (241) is snapped onto the first semi-circular ring clamp (231) and the second semi-circular ring clamp (232) through the snap-fit ​​grooves (236).

6. A motorcycle front shock absorber with good stability according to claim 5, characterized in that: The lower end of the abutment plate (243) is fixed with a plurality of reinforcing ribs (244) arranged in a uniform circumferential array, and the reinforcing ribs (244) are fixedly connected to the extended ring (242).

7. A motorcycle front shock absorber with good stability according to claim 2, characterized in that: The locking member (234) includes a rotating screw (2341) rotatably disposed on the extension (233) of the first semi-circular ring clamp (231), and a rotating nut (2342) threadedly connected to the rotating screw (2341) and sleeved on the rotating screw (2341).

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