A quick release tool for motorcycle shock absorber springs

Abstract

The utility model discloses a quick dismounting tool of motorcycle shock absorber spring, including the spring compression device of setting at shock absorber both sides and the compression disc between them, and the compression disc both ends are equipped with the connecting shaft and with the shell outer wall recess slide cooperation, are used for with shock absorber spacing plate abutment, realize the stable compression of spring. Tool bottom is equipped with the mounting seat, is used for supporting and positioning shock absorber. Spring compression device inside is equipped with cross connecting rod, screw rod and nut transmission structure, and the screw rod rotation drives the link to open and shut, realizes the up and down movement of compression disc. Compression disc is by symmetrical half ring body splicing and is formed, and its inside arc clamping slot and outside slot cooperate with spacing plate, and it is convenient to quick assembly and disassembly. The shell recess is equipped with the limit sleeve and the bolt pin, is used for fixed compression disc. Two side compression devices are through the chain wheel and chain linkage, and are equipped with drive handle and tensioning adjusting assembly, make both sides synchronous operation and transmission stable.

Description

Technical Field

[0001] This utility model relates to the technical field of motorcycle shock absorber repair tools, and in particular to a quick disassembly tool for motorcycle shock absorber springs. Background Technology

[0002] Motorcycle shock absorbers typically consist of a shock absorber body, piston rod, spring, and upper and lower spring seats. The spring plays a crucial role in absorbing shocks and cushioning vibrations. To ensure vehicle comfort and stability, a certain preload is applied to the spring during assembly, ensuring it is compressed even when no external force is applied. In actual maintenance, when replacing or repairing a screw-type compressor or a single-sided screw benchtop compressor, the spring may need to be compressed. Portable double-jaw screw-type compressors use two hooks to attach to the two ends of the spring, gradually compressing the spring by rotating the screw. While compact, this method is prone to uneven force distribution during compression, especially when operated by a single person, which can lead to spring misalignment, bending, or even compressor slippage, posing a safety risk. Single-sided screw benchtop compressors use a single-sided screw to drive the upper pressure plate downwards to compress the spring. However, when repairing the internal components of a motorcycle shock absorber, the spring must first be compressed to release the preload between it and the upper spring seat before the upper seat can be safely disassembled and the spring removed. In existing technologies, spring compression usually relies on portable dual-claw clamps. However, since the force is concentrated on one side, a lateral torque is generated during compression, causing the spring to deflect and affecting the safety and accuracy of disassembly and assembly operations.

[0003] The above methods suffer from problems such as asymmetrical force distribution, inconvenience for single-person operation, and insufficient safety. If the spring shifts or suddenly slips during compression, it may lead to operational failure or even personal injury. Summary of the Invention

[0004] This utility model provides a quick disassembly tool for motorcycle shock absorber springs, aiming to solve the problems in the prior art where the disassembly of motorcycle shock absorber springs is prone to asymmetrical force, inconvenient for single-person operation, and insufficient safety.

[0005] The technical solution of this utility model is as follows: A quick-release tool for motorcycle shock absorber springs, comprising: A spring compression device is located on both sides of the motorcycle shock absorber; a pressure plate with connecting shafts at both ends is installed between the spring compression devices to abut against the limiting plate on the motorcycle shock absorber; the outer wall of the housing of the spring compression device has an axially extending groove for sliding engagement between the connecting shaft and the outer wall of the housing; a mounting base is located at the lower end of the motorcycle shock absorber to support and position the motorcycle shock absorber; a linkage mechanism includes sprockets respectively installed on the left and right spring compression devices and a chain connecting the two sprockets to drive the spring compression devices on both sides to move synchronously.

[0006] Furthermore, the spring compression device is provided with a pair of cross-connecting rods, which are hinged at the intersection and equipped with meshing gears; a lead screw is installed in the spring compression device, and a lead screw nut is fixedly connected to the end of the connecting rod. When the lead screw rotates, it drives the lead screw nut to move axially, thereby causing the connecting rod to open and close, and in turn causing the pressure plate to move up and down.

[0007] Preferably, the pressure plate is composed of two symmetrical semi-rings joined together. The inner side of the semi-ring is provided with an arc-shaped groove, and the outer side of the semi-ring is provided with a slot for locking onto the outer periphery of the motorcycle shock absorber limiting plate.

[0008] Preferably, in some embodiments, a limiting sleeve is fixedly provided in the groove on the outer wall of the housing of the spring compression device. The limiting sleeve and the end of the connecting shaft are provided with corresponding pin holes, and a pin can be inserted into the pin hole to fix the pressure plate.

[0009] Preferably, the linkage mechanism further includes a drive handle, which is coaxially mounted with the lead screw on any spring compression device, and the two sprockets rotate synchronously by rotating the drive handle.

[0010] More specifically, the base of the motorcycle shock absorber is provided with a mounting seat in the middle, and the mounting seat is provided with a positioning groove or positioning hole for cooperating with the lower connecting component of the motorcycle shock absorber.

[0011] Preferably, the linkage mechanism also includes a chain tension adjustment component for adjusting the tension of the chain.

[0012] This invention utilizes synchronously linked spring compression devices on both sides of the shock absorber to ensure stable contact between the pressure plate and the limiting plate, achieving balanced spring force, preventing offset and slippage, and improving operational safety. The pressure plate employs a symmetrical splicing structure for easy and quick installation and disassembly, while ensuring reliable locking and improved positioning accuracy. The mounting base supports and positions the lower end of the shock absorber, ensuring overall stability and facilitating single-person operation. The linkage mechanism achieves synchronous compression on both sides via a sprocket and chain, and can be driven by a handle, reducing operational difficulty; combined with the tension adjustment component, it ensures stable and durable transmission. In summary, this invention enables quick and safe disassembly of motorcycle shock absorber springs, offering convenient operation and significantly improved safety and efficiency. Attached Figure Description

[0013] Figure 1 A schematic diagram of a quick-release tool for a motorcycle shock absorber spring provided in an embodiment of this application; Figure 2 A side view of a quick-release tool for a motorcycle shock absorber spring provided in an embodiment of this application; Figure 3 A schematic diagram of the back structure of a quick-release tool for a motorcycle shock absorber spring provided in an embodiment of this application; Figure 4 A schematic diagram of the internal structure of a quick-release tool for a motorcycle shock absorber spring provided in an embodiment of this application; Figure 5 A schematic diagram of the pressure plate structure of a quick-release tool for a motorcycle shock absorber spring provided in an embodiment of this application; Attached icon numbers: 1. Drive handle; 11. Lead screw; 12. Chain; 13. Sprocket; 2. Spring compression device; 21. Housing; 22. Pressure plate; 221. Arc-shaped groove; 222. Slot; 223. Pin hole; 23. Limit sleeve; 24. Meshing gear; 25. Connecting rod; 3. Motorcycle shock absorber; 31. Limit plate; 32. Spring; 4. Mounting base; 41. Base. Detailed Implementation

[0014] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application.

[0015] Motorcycle shock absorbers typically consist of a shock absorber body, piston rod, spring, and upper and lower spring seats. The spring plays a crucial role in absorbing shocks and cushioning vibrations. To ensure vehicle comfort and stability, a certain preload is applied to the spring during assembly, ensuring it is compressed even when no external force is applied. In actual maintenance, when replacing or repairing a screw-type compressor or a single-sided screw benchtop compressor, the spring may need to be compressed. Portable double-jaw screw-type compressors use two hooks to attach to the two ends of the spring, gradually compressing the spring by rotating the screw. While compact, this method is prone to uneven force distribution during compression, especially when operated by a single person, which can lead to spring misalignment, bending, or even compressor slippage, posing a safety risk. Single-sided screw benchtop compressors use a single-sided screw to drive the upper pressure plate downwards to compress the spring. However, when repairing the internal components of a motorcycle shock absorber, the spring must first be compressed to release the preload between it and the upper spring seat before the upper seat can be safely disassembled and the spring removed. In existing technologies, spring compression usually relies on portable dual-claw clamps. However, since the force is concentrated on one side, a lateral torque is generated during compression, causing the spring to deflect and affecting the safety and accuracy of disassembly and assembly operations.

[0016] The above methods suffer from problems such as asymmetrical force distribution, inconvenience for single-person operation, and insufficient safety. If the spring shifts or suddenly slips during compression, it may lead to operational failure or even personal injury.

[0017] In response to this, the present invention provides a quick disassembly tool for motorcycle shock absorber springs, aiming to solve the problems of uneven force distribution, inconvenience for single-person operation, and insufficient safety in the existing technology when disassembling motorcycle shock absorber springs.

[0018] This application provides a quick-release tool for motorcycle shock absorber springs, comprising: a spring compression device 2, disposed on both sides of a motorcycle shock absorber 3; a pressure plate 22, with connecting shafts at both ends, installed between the spring compression devices 2 for abutting against a limiting plate 31 on the motorcycle shock absorber 3, wherein the outer wall of the housing 21 of the spring compression device 2 has an axially extending groove for sliding engagement between the connecting shaft and the outer wall of the housing 21; a mounting base 4, located at the lower end of the motorcycle shock absorber 3 for supporting and positioning the motorcycle shock absorber 3; and a linkage mechanism, including sprockets 13 respectively installed on the left and right spring compression devices 2 and a chain 12 connecting the two sprockets 13, driving the spring compression devices 2 on both sides to move synchronously.

[0019] The spring compression device 2, here referring to a mechanism capable of applying axial pressure to the outer spring 32 of the shock absorber, includes a housing 21 and an internal compression transmission structure. Its function is to provide uniform compressive force, so that the shock absorber spring 32 can be compressed to a predetermined position without disassembling the shock absorber body.

[0020] The pressure plate 22 is a load-bearing component installed between the two spring compression devices 2. Its function is to directly abut against the limiting plate 31 on the motorcycle shock absorber 3 and bear the reaction force of the spring 32. By moving the pressure plate 22 up and down, the controlled compression of the shock absorber spring 32 can be achieved.

[0021] The connecting shaft is a shaft that extends from both ends of the pressure plate 22. It is used to slide and engage with the groove on the outer wall of the housing 21 of the spring compression device 2, so as to ensure that the pressure plate 22 remains parallel and does not tilt when it moves up and down.

[0022] Mounting base 4, located at the lower end of the shock absorber, is used to support and position the shock absorber so that it does not shake or shift during operation.

[0023] The linkage mechanism refers to the synchronous transmission structure composed of the left and right sprockets 13 and the connecting chain 12. Its function is to ensure the synchronous movement of the spring compression devices 2 on both sides, so that the operator only needs to operate one side to complete the synchronous compression of both sides.

[0024] This tool achieves uniform compression of the external spring 32 of the shock absorber by setting spring compression devices 2 on both sides of the shock absorber. A pressure plate 22 is installed between the two devices, and its connecting shafts at both ends can slide within the grooves of the housing 21, ensuring that the pressure plate 22 remains parallel and does not tilt during vertical movement. The pressure plate 22 abuts against the shock absorber limiting plate 31, reliably transmitting the compressive force to the spring 32. The mounting base 4 supports the bottom of the shock absorber, ensuring its stability during compression. The linkage mechanism consists of a sprocket 13 and a chain 12, ensuring that the actions of the devices on both sides are synchronized. Through this structure, the operator can achieve synchronous compression of the springs 32 on both sides while applying force on one side, significantly improving operational efficiency and safety.

[0025] In some embodiments, the spring compression device 2 is provided with a pair of cross-arranged connecting rods 25, which are hinged at the intersection and provided with meshing gears 24; a lead screw 11 is installed in the spring compression device 2, and a lead screw 11 nut is fixedly connected to the end of the connecting rod 25. When the lead screw 11 rotates, it drives the lead screw 11 nut to move axially, thereby causing the connecting rod 25 to open and close, and in turn causing the pressure plate 22 to move up and down.

[0026] It can be understood that the connecting rod 25 refers to the rods arranged in a cross pattern inside, with a rotating hinge at the intersection and meshing with a pinion at the intersection. Its function is to realize the conversion between the axial movement of the lead screw 11 and the linear movement of the pressure plate 22.

[0027] Lead screw 11 refers to a long rod that drives a nut to move axially via a threaded transmission. Rotation of lead screw 11 converts rotational motion into linear motion. Lead screw 11 nut refers to the nut fixed to the end of connecting rod 25, which cooperates with lead screw 11 to realize the opening and closing motion of connecting rod 25.

[0028] In the spring compression device 2, the cross link 25 serves as the core transmission unit, with gear meshing at the intersection ensuring the symmetry of the two links' movements. The lead screw 11, in conjunction with the nut, converts rotational motion into linear motion. When the lead screw 11 rotates, the nut moves axially, thereby causing the link 25 to open and close. The opening and closing of the link 25 further pushes the pressure plate 22 to rise and fall axially, compressing or releasing the shock absorber spring 32. This structure has a mechanical self-locking characteristic, ensuring stable compression and preventing rebound due to external interference.

[0029] In some embodiments, the pressure plate 22 is composed of two symmetrical semi-rings joined together. The inner side of the semi-ring is provided with an arc-shaped groove 221, and the outer side of the semi-ring is provided with a slot 222 for locking onto the outer periphery of the limiting plate 31 of the motorcycle shock absorber 3.

[0030] It is understandable that the semi-annular acupressure plate 22 is composed of two symmetrical semi-circular arc-shaped parts, facilitating installation and disassembly in confined spaces. The arc-shaped groove 221 refers to the groove located inside the semi-annular body, used to stably fit against the outer periphery of the shock absorber limiting plate 31. The slot 222 refers to the slot located on the outer side of the semi-annular body, used to further engage with the outer periphery of the limiting plate 31, serving to limit movement and prevent slippage.

[0031] The pressure plate 22 is constructed from two semi-ringed pieces, facilitating quick installation and disassembly within limited space. The arc-shaped slot 221 fits snugly against the outer periphery of the shock absorber limiting plate 31, ensuring accurate positioning. The outer slot 222 further engages with the edge of the limiting plate 31, enhancing the stability of the connection between the pressure plate 22 and the shock absorber. This split design improves installation convenience while ensuring stable and uniform force distribution during compression.

[0032] In some embodiments, a limiting sleeve 23 is fixedly provided in the groove on the outer wall of the housing 21 of the spring compression device 2. The limiting sleeve 23 and the end of the connecting shaft are provided with corresponding pin holes 223. The pin can be inserted into the pin hole 223 to fix the pressure plate 22.

[0033] It can be understood that the limiting sleeve 23 refers to the fixing ring sleeve installed in the groove of the housing 21 of the spring compression device 2, which is used to constrain the end of the connecting shaft.

[0034] The pin hole 223 and the pin refer to the corresponding hole and pin opened between the end of the connecting shaft and the limiting sleeve 23. The pressure plate 22 can be fixed in the designated position by inserting the pin.

[0035] The limiting sleeve 23 is fixed in the groove position of the housing 21, and cooperates with the pin hole 223 at the end of the connecting shaft. After the pin is inserted, the position of the pressure plate 22 can be locked. This limiting method can prevent the pressure plate 22 from displacing or falling off during the force process, ensuring the safety and reliability of the compression process.

[0036] In some embodiments, the linkage mechanism further includes a drive handle 1, which is coaxially mounted with the lead screw 11 on any spring compression device 2, and the sprockets 13 on both sides are rotated synchronously by rotating the drive handle 1.

[0037] As can be understood, drive handle 1 is a rotary handle installed at one end of the lead screw 11, used for manually rotating the lead screw 11. Coaxial installation means that drive handle 1 and lead screw 11 are located on the same axis, thereby ensuring accurate transmission of rotational motion.

[0038] Specifically, the drive handle 1 is located at one end of the lead screw 11. The operator only needs to turn the handle to drive the lead screw 11 to rotate, which is transmitted through the sprocket 13 and the chain 12 to realize the synchronous action of the spring compression devices 2 on both sides. This structure is easy to operate, reduces the labor intensity of the user, and even non-professionals can easily complete the disassembly of the shock absorber.

[0039] In some embodiments, the base 41 of the motorcycle shock absorber 3 is provided with a mounting seat 4 in the middle, and the mounting seat 4 is provided with a positioning groove or positioning hole for cooperating with the lower end connecting component of the motorcycle shock absorber 3.

[0040] It is understandable that the positioning groove refers to the limiting structure reserved on the mounting base 4 for the lower end of the shock absorber. It is designed according to the shape of the lower end of different shock absorbers to ensure that the lower end can be accurately positioned.

[0041] Specifically, mounting base 4, as a bottom support component, has a positioning groove or hole that can mate with the structural components at the lower end of the shock absorber, ensuring that the shock absorber will not tilt or shake during compression. This stable support improves operational reliability and avoids damage to the shock absorber caused by eccentric forces.

[0042] In some embodiments, the linkage mechanism is provided with a chain 12 tension adjustment component for adjusting the tension of the chain 12.

[0043] The chain 12 tension adjustment assembly can control the chain 12 tension by adjusting the bolts or pulleys. This design ensures that the linkage mechanism maintains synchronization during long-term use, avoiding asynchrony caused by chain 12 slack, thereby improving transmission stability and tool life.

[0044] The above are merely preferred embodiments of this application and are 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 quick-release tool for motorcycle shock absorber springs, characterized in that, include: A spring compression device (2) is located on both sides of the motorcycle shock absorber (3); The pressure plate (22) has connecting shafts at both ends and is installed between the spring compression device (2) for abutting against the limiting plate (31) on the motorcycle shock absorber (3). The outer wall of the housing (21) of the spring compression device (2) has an axially extending groove for sliding cooperation between the connecting shaft and the outer wall of the housing (21). Mounting base (4), located at the lower end of the motorcycle shock absorber (3), is used to support and position the motorcycle shock absorber (3). The linkage mechanism includes sprockets (13) respectively installed on the left and right spring compression devices (2) and chains (12) that cooperate with the sprockets (13), which drive the spring compression devices (2) on both sides to move synchronously.

2. The quick-release tool for motorcycle shock absorber springs according to claim 1, characterized in that, The spring compression device (2) is provided with a pair of cross-arranged connecting rods (25), which are hinged at the intersection and equipped with meshing gears (24); a lead screw (11) is installed in the spring compression device (2), and a lead screw (11) nut is fixedly connected to the end of the connecting rod (25). When the lead screw (11) rotates, it drives the lead screw (11) nut to move axially, thereby causing the connecting rod (25) to open and close, and thus causing the pressure plate (22) to move up and down.

3. The quick-release tool for motorcycle shock absorber springs according to claim 1 or 2, characterized in that, The pressure plate (22) is composed of two symmetrical semi-rings. The inner side of the semi-ring is provided with an arc-shaped groove (221), and the outer side of the semi-ring is provided with a slot (222) for locking onto the outer periphery of the limiting plate (31) of the motorcycle shock absorber (3).

4. The quick-release tool for motorcycle shock absorber springs according to claim 3, characterized in that, A limiting sleeve (23) is fixedly provided in the groove on the outer wall of the housing (21). The limiting sleeve (23) and the end of the connecting shaft are provided with corresponding pin holes (223). The pin can be inserted into the pin hole (223) to fix the pressure plate (22).

5. The quick-release tool for motorcycle shock absorber springs according to claim 2, characterized in that, The linkage mechanism further includes a drive handle (1), which is coaxially mounted with the lead screw (11) on any spring compression device (2). The two sprockets (13) are rotated synchronously by rotating the drive handle (1).

6. The quick-release tool for motorcycle shock absorber springs according to claim 3, characterized in that, The base (41) of the motorcycle shock absorber (3) is provided with a mounting seat (4) in the middle. The mounting seat (4) is provided with a positioning groove for cooperating with the lower end connecting part of the motorcycle shock absorber (3).

7. The quick-release tool for motorcycle shock absorber springs according to claim 5, characterized in that, The linkage mechanism is equipped with a chain (12) tension adjustment component for adjusting the tension of the chain (12).

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