Motorcycle rear shock absorber convenient to maintain

Abstract

The utility model relates to the technical field of shock absorbers, in particular to a motorcycle rear shock absorber convenient to maintain, which comprises a floating rod, a lower supporting seat, a shock absorbing cylinder, an upper supporting seat and a preloading component, the lower supporting seat is arranged below the floating rod, the upper part of the floating rod is connected with the shock absorbing cylinder in an inserting manner, the upper supporting seat is arranged above the shock absorbing cylinder, and the preloading component is arranged on the upper supporting seat. The preloading assembly comprises a hydraulic base, an output disc, a spring and a supporting piece, the preloading assembly adopts the hydraulic base to drive the output disc to ascend and descend, the pressure in the hydraulic base is adjusted through the control valve, the output disc can stably push the spring to be compressed or stretched, and stepless adjustment of preloading of the spring is achieved; the spring is extruded through an external instrument to be in a compressed state, at the moment, the lower protection ring is lifted upwards, the supporting ring is pulled away from the positioning base, unlocking can be completed, the lower portion of the spring is supported and limited, the spring can be disassembled, and the floating rod and the damping cylinder can be disassembled and overhauled.

Description

TECHNICAL FIELD

[0001] The utility model relates to shock absorber technical field, concretely is a motorcycle rear shock absorber convenient to maintain. BACKGROUND

[0002] The motorcycle rear shock absorber is the key suspension component connecting the frame and the rear wheel, mainly functions as absorbing the road bump, attenuating the vibration, balancing the vehicle body weight distribution, ensuring the rear wheel grip, and improving the riding comfort and control stability.

[0003] The rear shock absorber is often additionally provided with a preloading adjuster, and the traditional preloading adjuster adopts a stepped clamping groove or a threaded pressure plate structure for adjusting the tightness of the spring, which is inconvenient to operate. UTILITY MODEL CONTENTS

[0004] (I) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides a motorcycle rear shock absorber convenient to maintain.

[0006] (II) Technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: a motorcycle rear shock absorber convenient to maintain, which comprises a floating rod, a lower support seat, a shock absorber cylinder, an upper support seat and a preloading assembly, the lower support seat is arranged below the floating rod, the shock absorber cylinder is connected to the upper part of the floating rod in a plug-in manner, the upper support seat is arranged above the shock absorber cylinder, the preloading assembly comprises a hydraulic seat, an output disc, a spring and a support piece, the hydraulic seat is arranged below the upper support seat, the hydraulic seat is arranged in a ring-shaped sleeve on the shock absorber cylinder, the output disc is arranged at the lower end of the hydraulic seat, the support piece is arranged above the lower support seat, the upper and lower ends of the spring are in contact with the output disc and the support piece respectively, the spring is arranged in a sleeve on the outer side of the floating rod and the shock absorber cylinder, the support piece comprises a positioning seat and a support ring, the positioning seat is further arranged above the lower support seat, the positioning seat is in an L shape, and the support ring is provided with a U-shaped groove matched with the positioning seat.

[0008] In order to ensure that the support ring and the positioning seat are stably connected, the utility model improves that the lower part of the positioning seat is symmetrically provided with guide blocks on the left and right sides, and the support ring is provided with guide grooves matched with the guide blocks.

[0009] Preferably, the support is further provided with a lower protective ring, the lower protective ring is sleeved on the upper part of the support, the outer wall of the upper part of the lower protective ring is in contact with the inner side of the spring, and the top wall of the lower part of the lower protective ring is in contact with the bottom wall of the spring.

[0010] Preferably, the output disc is further sleeved with an upper protective ring below, and the upper protective ring is in contact with the top wall of the spring.

[0011] Preferably, the lower support seat is provided with a lower lifting ring below, and the upper support seat is further provided with an upper lifting ring.

[0012] Preferably, the upper support seat is further provided with an air chamber penetrating the damping cylinder.

[0013] Preferably, one side of the hydraulic seat is connected with one end of a connecting pipe, the other end of the connecting pipe is connected with a control valve, the control valve is connected with a hoop through bolts, and the hoop is clamped on the air chamber.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the utility model provides a motorcycle rear shock absorber convenient to maintain, has the following beneficial effects:

[0016] The motorcycle rear shock absorber convenient to maintain, the preloading assembly adopts the hydraulic seat to drive the output disc to lift: the pressure in the hydraulic seat is adjusted through the control valve, the output disc can stably push the spring to compress or stretch, and stepless adjustment of spring preloading is realized.

[0017] The support is composed of a positioning seat (L-shaped) and a support ring (with a U-shaped groove), the support ring is inserted with the positioning seat through the U-shaped groove, and the positioning is realized by cooperating with the guide block and the guide groove; when the preloading adjuster is disassembled, the output disc is lifted to the highest position, the spring is extruded through external instruments, the spring is in a compressed state, the lower protective ring is lifted upward at this time, the support ring is separated from the positioning seat, the unlocking of the lower part of the spring is completed, the spring can be disassembled, and the floating rod and the damping cylinder part can be disassembled and repaired. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a main view schematic drawing of the utility model structure;

[0019] Figure 2 It is a bottom view schematic drawing of the utility model structure;

[0020] Figure 3 It is an explosion schematic drawing of the utility model structure;

[0021] Figure 4 It is a structure Figure 3 of the utility model.

[0022] In the figure: 1, floating rod; 2, lower support seat; 3, shock cylinder; 4, upper support seat; 5, hydraulic seat; 6, output disc; 7, spring; 8, positioning seat; 9, support ring; 10, guide block; 11, lower protective ring; 12, upper protective ring; 13, lower lifting ring; 14, upper lifting ring; 15, air chamber; 16, connecting pipe; 17, control valve; 18, clamp. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4 A motorcycle rear shock absorber convenient to maintain, including floating rod 1, lower support seat 2, shock cylinder 3, upper support seat 4 and preloading assembly, the lower support seat 2 is arranged below the floating rod 1, the shock cylinder 3 is inserted with the floating rod 1 above, the upper support seat 4 is arranged above the shock cylinder 3, the preloading assembly includes hydraulic seat 5, output disc 6, spring 7 and support piece, the hydraulic seat 5 is arranged below the upper support seat 4, the hydraulic seat 5 is annularly sleeved on the shock cylinder 3, the output disc 6 is arranged on the output end of the hydraulic seat 5 below, the support piece is arranged above the lower support seat 2, the upper and lower ends of the spring 7 are in contact with the output disc 6 and support piece respectively, the spring 7 is sleeved on the outer side of the floating rod 1 and shock cylinder 3, the support piece includes positioning seat 8 and support ring 9, the positioning seat 8 is additionally arranged above the lower support seat 2, the positioning seat 8 is L-shaped, the support ring 9 is additionally provided with U-shaped groove matched with the positioning seat 8, the air chamber 15 is additionally arranged on the upper support seat 4 and penetrates the shock cylinder 3, one end of the connecting pipe 16 is connected with one side of the hydraulic seat 5, the other end of the connecting pipe 16 is connected with the control valve 17, the control valve 17 is connected with the clamp 18 through bolt, and the clamp 18 is clamped on the air chamber 15.

[0025] The hydraulic seat 5 below the upper support seat 4 is sleeved on the shock cylinder 3 and is communicated with the control valve 17 through the connecting pipe 16. When it is needed to adjust the preloading of the spring 7, the control valve 17 is operated to change the pressure in the hydraulic seat 5, the output end of the hydraulic seat 5 pushes the output disc 6 to move downward, and the spring 7 is compressed (the preloading is increased, and the shock is harder); on the contrary, the pressure of the hydraulic seat 5 is reduced, and the output disc 6 is reset upward under the elastic force of the spring 7 (the preloading is reduced, and the shock is softer). The stepless adjustment of the preloading of the spring 7 is realized by the hydraulic drive, the traditional step-by-step or threaded fixed-gear adjustment is replaced, the operation is more convenient, and the precision is higher.

[0026] The control valve 17 is clamped on the air chamber 15 by the clamp 18, which is compact in layout and convenient to operate, so that the pre-load adjustment does not require bending or the aid of tools, improving the convenience of daily use;

[0027] The hydraulic system can stably maintain the position of the output disc 6, ensuring that the pre-load of the spring 7 does not deviate during riding, and avoiding changes in pre-tightening force caused by vibration in traditional threaded structures;

[0028] The L-shaped positioning seat 8 above the lower support seat 2 is inserted into the U-shaped groove of the support ring 9, and the guide blocks 10 on both sides of the positioning seat 8 cooperate with the guide grooves of the support ring 9 to limit the lateral movement of the support ring 9, so that the support ring 9 stably supports the bottom of the spring 7. At this time, the upper and lower ends of the spring 7 are limited by the output disc 6 (above) and the support ring 9 (below) respectively, forming effective support for the spring 7;

[0029] In this embodiment, a lower protective ring 11 is also provided on the support member, which is sleeved on the upper part of the support member, and the outer wall of the upper part of the lower protective ring 11 is in contact with the inner side of the spring 7, and the lower part top wall of the lower protective ring 11 is in contact with the bottom wall of the spring 7. An upper protective ring 12 is also sleeved below the output disc 6, which is in contact with the top wall of the spring 7;

[0030] Finally, the spring 7 with a coating or protective sleeve is in contact with the upper protective ring 12 and the lower protective ring 11 respectively at the top and bottom;

[0031] Dismantling and maintenance process:

[0032] First, adjust the hydraulic seat 5 through the control valve 17 to make the output disc 6 rise to the highest position, reducing the pressure on the spring 7;

[0033] Gently squeeze the spring 7 with external instruments (such as special clamps) to make it in a compressed state, releasing the insertion stress of the support ring 9 and the positioning seat 8;

[0034] Lift the lower protective ring 11 upwards, the lower protective ring 11 no longer limits the support member in a stepped manner, and the support ring 9 is separated from the positioning seat 8, so that the U-shaped groove of the support ring 9 is separated from the positioning seat 8, the guide blocks 10 are separated from the guide grooves, and the support ring 9 is separated from the bottom of the spring 7;

[0035] At this time, the spring 7 loses the lower support (the positioning seat 8 connected to the lower part of the floating rod 1 is not enough to stably support the lower part of the spring 7, and during assembly, the spring 7 is located above the support ring 9, which is out of position with the U-shaped groove), which can be easily removed, and then the core components such as the floating rod 1 and the shock absorber 3 can be dismantled and maintained.

[0036] The entire process does not require the disassembly of other related components, saving a large amount of operation time compared to traditional rigid connection structures

[0037] The lower part of the positioning seat 8 is symmetrically provided with guide blocks 10 on the left and right sides, and the support ring 9 is provided with guide grooves matched with the guide blocks 10.

[0038] In the embodiment, the lower support seat 2 is provided with a lower hanging ring 13, and the upper support seat 4 is further provided with an upper hanging ring 14, the lower hanging ring 13 is connected with the rear wheel, and the upper hanging ring 14 is connected with the frame, so as to ensure the stable assembly of the shock absorber and the whole vehicle; the air chamber 15 is communicated with the shock absorber cylinder 3, and is used for adjusting the damping resistance (independent work with the preloading adjustment), so as to jointly optimize the riding quality.

[0039] In the present document, the term "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, and does not particularly limit the independence or association between other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0040] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the art to which the present application belongs; the use of related terms herein is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0041] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application.

Claims

1. A motorcycle rear shock absorber that is easy to maintain, comprising a floating rod, a lower support seat, a shock absorber cylinder, an upper support seat and a preload assembly, characterized in that: The lower support seat is provided below the floating rod, and the shock absorber cylinder is plugged into the upper part of the floating rod. The upper support seat is provided above the shock absorber cylinder. The preload assembly includes a hydraulic seat, an output disk, a spring and a support member. The hydraulic seat is provided below the upper support seat, and the hydraulic seat is annularly sleeved on the shock absorber cylinder. An output disk is provided at the output end below the hydraulic seat, and a support member is provided above the lower support seat. The upper and lower ends of the spring are in contact with the output disk and the support member respectively, and the spring is sleeved on the outside of the floating rod and the shock absorber cylinder. The support member includes a positioning seat and a support ring. The positioning seat is also provided above the lower support seat. The positioning seat is L-shaped, and a U-shaped groove adapted to the positioning seat is provided on the support ring.

2. The motorcycle rear shock absorber that is easy to maintain according to claim 1, characterized in that: Guide blocks are symmetrically arranged on the left and right sides of the lower part of the positioning seat, and the support ring is provided with guide grooves adapted to the guide blocks.

3. The motorcycle rear shock absorber that is easy to maintain according to claim 2, characterized in that: The support member is also provided with a lower protective ring, which is sleeved on the upper part of the support member. The outer wall of the upper part of the lower protective ring contacts the inner side of the spring, and the top wall of the lower part of the lower protective ring contacts the bottom wall of the spring.

4. The motorcycle rear shock absorber that is easy to maintain according to claim 3, characterized in that: An upper protective ring is also sleeved under the output disc, and the upper protective ring is in contact with the top wall of the spring.

5. The motorcycle rear shock absorber that is easy to maintain according to claim 4, characterized in that: A lower hanging ring is provided below the lower supporting seat, and an upper hanging ring is provided on the upper supporting seat.

6. The motorcycle rear shock absorber that is easy to maintain according to claim 5, characterized in that: The upper support seat is also provided with an air chamber which is in communication with the shock-absorbing cylinder.

7. The motorcycle rear shock absorber that is easy to maintain according to claim 6, characterized in that: One side of the hydraulic seat is connected to one end of a connecting pipe, the other end of the connecting pipe is connected to a control valve, the control valve is connected to a clamp via a bolt, and the clamp is clamped on the air chamber.

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