Length-adjustable motorcycle rear shock absorber

Abstract

The utility model discloses a length-adjustable motorcycle rear shock absorber, which relates to the technical field of shock absorbers and comprises a mounting plate, a lower connecting block is arranged at the bottom of the mounting plate, the mounting plate is provided with a threaded rod, a sliding sleeve, a fixed plate and an upper connecting block through a buffer damping rod, and a buffer spring is sleeved on the outer side of the buffer damping rod. A mounting shaft is arranged in the sliding plate through a cavity, a first bevel gear is arranged on the mounting shaft through key connection, a second bevel gear is arranged on the threaded rod and located in the cavity through key connection, and the first bevel gear is meshed with the second bevel gear. The threaded rod is driven to rotate by rotating the worm through the worm gear, the mounting shaft, the first bevel gear and the second bevel gear, so that the positions of the sliding sleeve and the fixing plate are adjusted, the length of the shock absorber is adjusted, operation is easy and convenient, the adjusting range is wide, the individual requirements of different road conditions and riders can be met, and the practicability is high. And the riding comfort and stability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to shock absorber technical field, specifically a length adjustable motorcycle rear shock absorber. BACKGROUND

[0002] As a common means of transportation, the stability and comfort of a motorcycle during driving are crucial to the rider. The rear shock absorber, as an important component of the motorcycle, plays an irreplaceable role in absorbing and reducing road vibrations, protecting the vehicle and the rider.

[0003] During the driving of a motorcycle, the vibrations experienced by the vehicle will vary depending on the road conditions. If the length of the shock absorber is fixed, it may not be able to fully perform its shock-absorbing function under certain road conditions, and even cause additional damage to the vehicle and the rider. Existing shock absorbers require complex tools or operations to adjust the length, which not only increases the difficulty of use but also reduces the convenience of adjustment. In addition, some shock absorbers may have instability or low adjustment accuracy during adjustment, which will affect the use effect and safety of the shock absorber. Therefore, we propose a length-adjustable motorcycle rear shock absorber. SUMMARY

[0004] The utility model aims at providing a length-adjustable motorcycle rear shock absorber to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A length-adjustable motorcycle rear shock absorber includes a mounting plate, a lower connecting block is provided at the bottom of the mounting plate, a buffer damping rod is further provided at the top of the mounting plate, a cavity is provided on the telescopic arm above the buffer damping rod, a sliding sleeve is slidably provided in the cavity, a fixed plate is provided at the top of the sliding sleeve, an upper connecting block is provided at the top of the fixed plate, a buffer spring is sleeved outside the buffer damping rod, a threaded rod is further provided inside the telescopic arm above the buffer damping rod through a rotating sleeve, the threaded rod penetrates the sliding sleeve and is threadedly connected with the sliding sleeve, a cavity is further provided inside the fixed plate, the threaded rod penetrates the side wall of the cavity and extends into the interior of the cavity, a second bevel gear is provided on the threaded rod inside the cavity through a key connection, an installation shaft is rotatably provided inside the cavity, a first bevel gear is provided on the installation shaft through a key connection, and the first bevel gear and the second bevel gear are meshed with each other.

[0007] As a further scheme of the utility model, a worm wheel is further provided on the installation shaft through a key connection, and a worm is further rotatably provided on the fixed plate, and the worm and the worm wheel are meshed with each other.

[0008] As a further scheme of the utility model: the one end of the buffer spring is connected with the mounting plate, and the other end of the buffer spring is connected with the fixed plate.

[0009] As a further scheme of the utility model: the mounting plate, the buffer damping rod, the buffer spring and the fixed plate constitute the shock absorber main body.

[0010] As a further scheme of the utility model: the worm outer wall is provided with a handle.

[0011] Compared with the prior art, the utility model has the beneficial effects as follows:

[0012] 1, by rotating the worm, can drive the worm wheel and with the connected installation shaft rotation, in turn drive the first bevel gear and the meshing transmission of the second bevel gear, finally make the threaded rod rotate, because the threaded rod and the sliding sleeve are connected with threaded connection, therefore the rotation of the threaded rod will convert into the linear motion of the sliding sleeve, thereby realize the adjustment of the shock absorber length, simple operation, and the adjustment range is wide, can satisfy the individualized demand of different road conditions and riders, improve the riding comfort and stability;

[0013] 2, the buffer damping rod and the buffer spring cooperate, can effectively absorb and slow down the road vibration, protect the motorcycle and the safety of the rider, in addition under the action of the worm wheel and worm self-locking function, guarantee the position of the fixed plate after adjustment can be limited, in turn guarantee the use efficiency of the shock absorber. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the structure schematic view of the utility model embodiment.

[0015] Fig. 2 It is the structure schematic view of the utility model embodiment and looks up.

[0016] Fig. 3 It is the structure schematic view of the utility model embodiment in the damping rod.

[0017] Fig. 4 It is the structure schematic view of the utility model embodiment in A.

[0018] Mark annotation: 1, mounting plate, 2, lower connecting block, 3, buffer damping rod, 4, fixed plate, 5, upper connecting block, 6, buffer spring, 7, sliding sleeve, 8, threaded rod, 9, installation shaft, 10, first bevel gear, 11, second bevel gear, 12, worm wheel, 13, worm, 14, handle. DETAILED DESCRIPTION

[0019] The utility model will be combined with the drawings detailed below, in the drawing or specification, similar or same part uses same sign, and in practical application, the shape, thickness or height of each component can be enlarged or reduced. The utility model lists each embodiment only to illustrate the utility model, and is not used to limit the scope of the utility model. Any obvious modification or change made to the utility model does not deviate from the spirit and scope of the utility model.

[0020] Embodiment

[0021] Please refer to Figs. 1-4 , the utility model discloses a length adjustable motorcycle rear shock absorber, including the mounting plate 1, the bottom of mounting plate 1 is provided with lower connecting block 2, at this time under the action of lower connecting block 2, facilitate the shock absorber for motorcycle connection, further guarantee the use efficiency of the shock absorber, the top of mounting plate 1 is provided with buffer damping rod 3, the upper cavity of telescopic arm of buffer damping rod 3 is provided with sliding sleeve 7, the top of sliding sleeve 7 is provided with fixed plate 4, the top of fixed plate 4 is provided with upper connecting block 5, at this time under the action of upper connecting block 5, cooperate lower connecting block 2 use, can better connect the shock absorber with motorcycle and work, buffer spring 6 is sleeved on the outside of buffer damping rod 3, one end of buffer spring 6 is connected with mounting plate 1, the other end of buffer spring 6 is connected with fixed plate 4, at this time under the action of mounting plate 1, buffer damping rod 3, buffer spring 6 and fixed plate 4, constitute shock absorber main part, further make the shock absorber can better shock attenuation work.

[0022] The upper cavity of telescopic arm of buffer damping rod 3 is still provided with threaded rod 8 through rotating sleeve, threaded rod 8 penetrates sliding sleeve 7 and is threadedly connected with sliding sleeve 7, at this time rotating threaded rod 8 can drive sliding sleeve 7 to move up and down, further adjust the distance between fixed plate 4 and mounting plate 1, so that the shock absorber can be length adjusted, to better satisfy the demand of actual use.

[0023] The inside of fixed plate 4 is also provided with a cavity, threaded rod 8 penetrates the side wall of the cavity and extends to the inside of the cavity, the second bevel gear 11 is arranged on the inside of the cavity on threaded rod 8 by key connection, the mounting shaft 9 is rotatably arranged in the inside of the cavity, the first bevel gear 10 is arranged on the mounting shaft 9 by key connection, the first bevel gear 10 and the second bevel gear 11 are meshed with each other, at this time rotating mounting shaft 9 can drive threaded rod 8 to rotate through the first bevel gear 10 and the second bevel gear 11, to better adjust the distance between fixed plate 4 and mounting plate 1, further make the length of the shock absorber can better satisfy the demand of actual use.

[0024] The worm wheel 12 is further arranged on the mounting shaft 9 through a key connection, the worm 13 is further rotatably arranged on the fixed plate 4, the worm 13 and the worm wheel 12 are in meshing connection, at this time, the worm 13 is rotated to drive the mounting shaft 9 to rotate through the worm wheel 12, and then the fixed plate 4 is adjusted, in addition, the worm wheel 12 and the worm 13 have a self-locking function, so that the position of the fixed plate 4 after adjustment can be limited, thereby ensuring the use efficiency of the shock absorber, the outer wall of the worm 13 is provided with a handle 14, and the worm 13 is driven to rotate by rotating the handle 14.

[0025] In actual use, first, the mounting plate 1 is connected with the motorcycle as the bottom connecting piece of the shock absorber, the stable installation of the shock absorber is ensured, the buffer damping rod 3 is arranged on the top of the mounting plate 1, and mainly plays a damping role, the upper cavity of the telescopic arm of the buffer damping rod 3 is provided with a sliding sleeve 7, the top of the sliding sleeve 7 is connected with the fixed plate 4, and the top of the fixed plate 4 is connected with another part of the motorcycle through the upper connecting block 5, so that the whole shock absorber is stably connected on the motorcycle, the buffer spring 6 is sleeved outside the buffer damping rod 3, one end of the buffer spring 6 is connected with the mounting plate 1, and the other end is connected with the fixed plate 4, when the motorcycle is vibrated, the buffer spring 6 is elastically stretched and contracted, so as to absorb and reduce the vibration, and the safety of the motorcycle and the rider is protected, when the length of the shock absorber needs to be adjusted, the user can rotate the handle 14 to drive the mounting shaft 9 to rotate through the worm 13 and the worm wheel 12, at this time, the threaded rod 8 is driven to rotate under the action of the first bevel gear 10 and the second bevel gear 11, so that the sliding sleeve 6 drives the fixed plate 4 to move, and the length adjustment function of the shock absorber is realized, in addition, the fixed plate 4 can be fixed after being adjusted to the appropriate position due to the self-locking function of the worm wheel 12 and the worm 13, so as to ensure the use efficiency of the shock absorber.

[0026] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the foregoing embodiments should be considered in all aspects as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0027] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A length-adjustable rear shock absorber for a motorcycle comprising a mounting plate (1), characterized in that, The bottom of the mounting plate (1) is provided with a lower connecting block (2), and the top of the mounting plate (1) is further provided with a buffer damping rod (3), a cavity is arranged on the upper telescopic arm of the buffer damping rod (3), a sliding sleeve (7) is slidably arranged in the cavity, a fixed plate (4) is arranged on the top of the sliding sleeve (7), an upper connecting block (5) is arranged on the top of the fixed plate (4), a buffer spring (6) is arranged outside the buffer damping rod (3), a threaded rod (8) is further arranged inside the upper telescopic arm of the buffer damping rod (3) through a rotating sleeve, the threaded rod (8) penetrates through the sliding sleeve (7) and is threadedly connected with the sliding sleeve (7), a cavity is further arranged inside the fixed plate (4), the threaded rod (8) penetrates through the side wall of the cavity and extends into the cavity, a second bevel gear (11) is arranged on the threaded rod (8) inside the cavity through key connection, an installation shaft (9) is rotatably arranged inside the cavity, a first bevel gear (10) is arranged on the installation shaft (9) through key connection, and the first bevel gear (10) and the second bevel gear (11) are meshed with each other.

2. Length-adjustable motorcycle rear shock absorber according to claim 1, characterized in that A worm wheel (12) is further arranged on the installation shaft (9) through key connection, and a worm (13) is further rotatably arranged on the fixed plate (4), and the worm (13) and the worm wheel (12) are meshed with each other.

3. Length-adjustable motorcycle rear shock absorber according to claim 1, characterized in that One end of the buffer spring (6) is connected with the mounting plate (1), and the other end of the buffer spring (6) is connected with the fixed plate (4).

4. Length-adjustable motorcycle rear shock absorber according to claim 1, characterized in that The mounting plate (1), the buffer damping rod (3), the buffer spring (6) and the fixed plate (4) constitute a shock absorber body.

5. Adjustable length motorcycle rear shock absorber according to claim 2, characterized in that, A handle (14) is arranged on the outer wall of the worm (13).

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