Compression tool for front shock absorber of motorcycle

By designing a compression fixture for a motorcycle front shock absorber and utilizing a pneumatic telescopic cylinder to compress the fork rod and retract the buffer spring, the problem of low efficiency in assembling the piston rod nut was solved, achieving efficient assembly.

CN224027511UActive Publication Date: 2026-03-24CHONGQING MANOTE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

During the assembly of motorcycle shock absorbers, when assembling the nut at the end of the piston rod, it is necessary to manually press the fork rod to compress the buffer spring, resulting in low assembly efficiency.

Method used

A compression fixture for a motorcycle front shock absorber was designed. The movable rod of a pneumatic telescopic cylinder abuts the end of the fork, causing the fork to retract and compress the buffer spring, thereby extending the piston rod and facilitating nut assembly.

Benefits of technology

It improves the assembly efficiency of motorcycle shock absorbers, replaces manual pressing operations, and enhances production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of tools, and particularly relates to a motorcycle front shock absorber compression tool which comprises a bottom plate, and a vertical plate is arranged at the top of one end of the bottom plate. The abutting assembly is arranged on the side wall of the vertical plate; the L-shaped block is arranged at the top of the other end of the bottom plate through a sliding clamping structure; the first supporting table, the second supporting table and the third supporting table are arranged on the top of the bottom plate, the third supporting table is arranged on the top of a transverse plate of the L-shaped block, and the second supporting table is located between the first supporting table and the third supporting table; the clamping and positioning structure is arranged on a vertical plate of the L-shaped block and used for solving the problem that when a nut is assembled at the end of the piston rod, one end of the fork rod needs to be pressed manually, so that the buffer spring is compressed to enable one end of the piston rod to extend out of one end of the bottom cylinder and then the nut is assembled, and the assembling efficiency is low.
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Description

Technical Field

[0001] This utility model belongs to the field of tooling technology, specifically relating to a compression tooling for a motorcycle front shock absorber. Background Technology

[0002] The front shock absorber is a core component of the motorcycle suspension system, directly affecting riding stability and comfort. For example... Figure 4 The front shock absorber for motorcycles mainly consists of a base tube, with a fork rod fitted inside. The fork rod contains a buffer spring and a piston rod. The shock absorption function is mainly achieved by the buffer spring, and it is widely used in the motorcycle industry.

[0003] In the current manufacturing and assembly process of motorcycle shock absorbers, after assembling the fork, buffer spring, and piston rod inside the base tube, a nut needs to be assembled at the end of the piston rod. However, since the buffer spring is in a stretched state in its original form, the piston rod will be completely retracted into the base tube. Therefore, when assembling the nut at the end of the piston rod, it is necessary to manually press one end of the fork to compress the buffer spring and cause one end of the piston rod to extend out from one end of the base tube before assembling the nut. This assembly efficiency is low. Utility Model Content

[0004] Based on the problems mentioned in the background art above, this utility model provides a compression fixture for a motorcycle front shock absorber, which solves the problem of low assembly efficiency when assembling the nut at the piston rod end, which requires manually pressing one end of the fork to compress the buffer spring and cause one end of the piston rod to extend from one end of the bottom cylinder before assembling the nut.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A motorcycle front shock absorber compression fixture, comprising:

[0007] A base plate, wherein a vertical plate is provided at the top of one end of the base plate;

[0008] An abutting component is disposed on the side wall of the upright plate;

[0009] The L-shaped block is mounted on the top of the other end of the base plate via a sliding snap-fit ​​structure;

[0010] Support platform 1, support platform 2 and support platform 3, support platform 1 and support platform 2 are both set on the top of the base plate, support platform 3 is set on the top of the horizontal plate of the L-shaped block, and support platform 2 is located between support platform 1 and support platform 3;

[0011] A snap-fit ​​positioning structure is provided on the vertical plate of the L-shaped block.

[0012] Based on the above technical solution, the present invention has made the following improvements:

[0013] Furthermore, the abutment assembly includes a pneumatic telescopic cylinder disposed on one side of the upright plate, with the movable rod of the pneumatic telescopic cylinder facing the L-shaped block.

[0014] Furthermore, the sliding snap-fit ​​structure includes a slot and two trapezoidal slots located at the top of the other end of the base plate. The slot is located between the two trapezoidal slots. A snap-fit ​​block is provided at the bottom of the L-shaped block, and the snap-fit ​​block is snapped into the slot. Trapezoidal blocks are provided in both trapezoidal slots. A stud is provided at the top of the trapezoidal block, and the stud extends through to the top of the horizontal plate of the L-shaped block. A nut is screwed onto the stud located above the top of the horizontal plate of the L-shaped block.

[0015] Furthermore, the snap-fit ​​positioning structure includes a U-shaped groove and a stop plate. The U-shaped groove is disposed on the vertical plate of the L-shaped block, and the stop plate is disposed on the side of the vertical plate of the L-shaped block away from the vertical plate. A U-shaped groove is disposed on the stop plate, and the U-shaped groove is smaller than the U-shaped groove.

[0016] Furthermore, both the first and third support platforms are provided with arc-shaped grooves on their tops, and the second support platform is provided with a recessed groove on its top.

[0017] The beneficial effects of this utility model are:

[0018] By placing the fork rod of the shock absorber on support platform one, the bottom cylinder on support platform three, and the part of the bottom cylinder with the oil seal on support platform two, and inserting the end of the bottom cylinder with the positioning seat into U-shaped groove one, with its end abutting against the backing plate, the shock absorber is placed. Then, by activating the pneumatic telescopic cylinder, its movable rod extends, and the extended movable rod abuts against the end of the fork rod, causing the fork rod to retract into the bottom cylinder, compressing the buffer spring so that one end of the piston rod extends from one end of the bottom cylinder. After one end of the piston rod extends from one end of the bottom cylinder, a nut can be screwed into the extended end of the piston rod, thereby replacing the manual pressing of the end of the fork rod and improving assembly efficiency. Attached Figure Description

[0019] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0020] Figure 1 This is a structural diagram of a motorcycle front shock absorber compression fixture according to the present invention;

[0021] Figure 2 This is a schematic diagram of a compression fixture for a motorcycle front shock absorber according to the present invention.

[0022] Figure 3 This is a bottom structural diagram of a motorcycle front shock absorber compression fixture according to the present invention.

[0023] Figure 4 This is a product structure diagram as described in the background section.

[0024] The attached diagram is labeled as follows:

[0025] 101. Base plate; 102. Vertical plate; 201. Pneumatic telescopic cylinder; 202. Movable rod; 301. Support platform one; 401. Support platform two; 501. Slot; 502. Trapezoidal groove; 503. Locking block; 504. Trapezoidal block; 505. Stud; 506. Nut; 601. L-shaped block; 602. Support platform three; 603. U-shaped groove one; 604. Support plate; 605. U-shaped groove two. Detailed Implementation

[0026] like Figures 1-4 As shown, a motorcycle front shock absorber compression fixture includes:

[0027] The base plate 101 has a vertical plate 102 at one end of the top. The abutting component is located on the side wall of the vertical plate 102. The abutting component includes a pneumatic telescopic cylinder 201 located on one side of the vertical plate 102. The movable rod 202 of the pneumatic telescopic cylinder 201 faces the L-shaped block 601.

[0028] L-shaped block 601 is set at the top of the other end of base plate 101 by a sliding snap-fit ​​structure. The sliding snap-fit ​​structure includes a slot 501 and two trapezoidal slots 502 set at the top of the other end of base plate 101. The slot 501 is located between the two trapezoidal slots 502. A snap-fit ​​block 503 is set at the bottom of L-shaped block 601. The snap-fit ​​block 503 is snapped in the slot 501. The snap-fit ​​block 503 cooperates with the slot 501 to guide and position L-shaped block 601, so that L-shaped block 601 can only move and adjust its position along the slot 501.

[0029] Each of the two trapezoidal slots 502 contains a trapezoidal block 504. A stud 505 is positioned at the top of each trapezoidal block 504, extending to the top of the horizontal plate of the L-shaped block 601. A nut 506 is screwed onto the stud 505 located above the top of the horizontal plate of the L-shaped block 601. When the position of the L-shaped block 601 needs to be adjusted, the nut 506 is rotated to move it upwards. During this upward movement of the nut 506, the trapezoidal block 504 moves downwards, causing the trapezoidal block 504 to... When the inclined wall of L4 disengages from the inclined wall of trapezoidal groove 502, the clamping and fixing of L-shaped block 601 is released. At this time, L-shaped block 601 can be moved to adjust its position. After L-shaped block 601 is adjusted to the correct position, nut 506 is rotated to move it downward. During the downward movement of nut 506, trapezoidal block 504 moves upward, so that the inclined wall of trapezoidal block 504 is in close contact with the inclined wall of trapezoidal groove 502, thereby fixing the L-shaped block 601 in the adjusted position.

[0030] Support platform 1 301, support platform 2 401 and support platform 3 602 are provided. Support platform 1 301 and support platform 2 401 are both set on the top of the base plate 101. Support platform 3 602 is set on the top of the horizontal plate of the L-shaped block 601. Support platform 2 401 is located between support platform 1 301 and support platform 3 602. Support platform 1 301 and support platform 3 602 are both provided with arc-shaped grooves on their tops. Support platform 2 401 is provided with a groove on its top. The arc-shaped groove on support platform 1 301 can support the fork of the shock absorber. The groove on support platform 2 401 can support the part of the bottom cylinder of the shock absorber that has an oil seal. The arc-shaped groove on support platform 3 602 can support the bottom cylinder of the shock absorber.

[0031] A snap-fit ​​positioning structure is provided on the vertical plate of the L-shaped block 601. The snap-fit ​​positioning structure includes a U-shaped groove 603 and a stop plate 604. The U-shaped groove 603 is provided on the vertical plate of the L-shaped block 601, and the stop plate 604 is provided on the side of the vertical plate of the L-shaped block 601 away from the vertical plate 102. The stop plate 604 is provided with a second U-shaped groove 605, which is smaller than the first U-shaped groove 603. The stop plate 604 can resist and limit one end of the bottom cylinder of the shock absorber.

[0032] In use, the shock absorber is placed in the arc-shaped groove of support platform 3 602, the part of the bottom cylinder with the oil seal is placed in the groove of support platform 2 401, the fork is placed in the arc-shaped groove of support platform 1 301, and the end of the bottom cylinder with the positioning seat is locked in U-shaped groove 1 603, with the end of the bottom cylinder with the positioning seat abutting against the backing plate 604, thus completing the placement of the shock absorber. Then, by activating the pneumatic telescopic cylinder 201, its movable rod 202 extends out, and the extended movable rod 202 abuts against the end of the fork, causing the fork to retract into the bottom cylinder, so that the buffer spring is compressed so that one end of the piston rod extends from the end of the bottom cylinder to outside U-shaped groove 2 605. At this time, a nut can be screwed into the extended end of the piston rod, thereby replacing the manual pressing of the end of the fork and improving assembly efficiency.

[0033] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of ​​the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A front shock absorber compression tool for a motorcycle, characterized by: Include: The bottom plate (101), one end of the top of the bottom plate (101) is provided with a vertical plate (102); Resting assembly, the resting assembly is arranged on the side wall of the vertical plate (102); L-shaped block (601), the L-shaped block (601) is arranged on the other end of the top of the bottom plate (101) by sliding joint structure; Supporting table one (301), supporting table two (401) and supporting table three (602), the supporting table one (301) and the supporting table two (401) are arranged on the top of the bottom plate (101), the supporting table three (602) is arranged on the top of the horizontal plate of the L-shaped block (601), the supporting table two (401) is located between the supporting table one (301) and the supporting table three (602); The joint positioning structure is arranged on the vertical plate of the L-shaped block (601).

2. A front shock absorber compression tool for a motorcycle as claimed in claim 1, wherein: The resting assembly includes a pneumatic telescopic cylinder (201) arranged on one side of the vertical plate (102), and the movable rod (202) of the pneumatic telescopic cylinder (201) faces the L-shaped block (601).

3. A front shock absorber compression tool for a motorcycle as defined in claim 1, wherein: The sliding joint structure includes a clamping groove (501) and two trapezoidal grooves (502) arranged on the other end of the top of the bottom plate (101), the clamping groove (501) is located between the two trapezoidal grooves (502), the bottom of the L-shaped block (601) is provided with a clamping block (503), the clamping block (503) is clamped in the clamping groove (501), two trapezoidal grooves (502) are provided with trapezoidal blocks (504), the top of the trapezoidal block (504) is provided with a stud (505), the stud (505) penetrates to above the top of the horizontal plate of the L-shaped block (601), and the nut (506) is screwed on the part of the stud (505) above the top of the horizontal plate of the L-shaped block (601).

4. A motorcycle front shock absorber compression tool as defined in claim 1 wherein: The joint positioning structure includes a U-shaped groove one (603) and a resisting plate (604), the U-shaped groove one (603) is arranged on the vertical plate of the L-shaped block (601), the resisting plate (604) is arranged on the side of the vertical plate of the L-shaped block (601) away from the vertical plate (102), the resisting plate (604) is provided with a U-shaped groove two (605), and the U-shaped groove two (605) is smaller than the U-shaped groove one (603).

5. A motorcycle front shock absorber compression tool as defined in claim 1 wherein: The top of the supporting table one (301) and the supporting table three (602) is provided with an arc-shaped groove, and the top of the supporting table two (401) is provided with a groove.