A motorcycle front shock absorber assembly

Abstract

This utility model discloses a motorcycle front shock absorber assembly, relating to the field of shock absorber technology. The solution includes an outer sleeve, with an inner sleeve slidably connected inside. A shock-absorbing mechanism that cooperates with the inner sleeve is installed inside the outer sleeve. A protective mechanism is installed outside the outer sleeve and the inner sleeve. This utility model significantly improves the shock absorption effect by using a first shock-absorbing spring, a second shock-absorbing spring, and hydraulic oil, along with a third shock-absorbing spring inside the outer sleeve, ensuring riding comfort and stability. The protective mechanism effectively protects the shock-absorbing mechanism from dust and allows for direct disassembly and replacement in case of damage, without disassembling the entire shock absorber assembly, reducing the workload of maintenance personnel and improving maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber technology, specifically a motorcycle front shock absorber assembly. Background Technology

[0002] The front shock absorber of a motorcycle is a core component installed between the frame and the front wheel. Its main function is to absorb the impact force generated by road bumps, dampen vibrations, ensure good contact between the front wheel and the ground, and improve riding comfort, stability, and handling safety. According to a search, Chinese patent publication number CN221257507U describes a front shock absorber for motorcycles, which includes an aluminum cylinder and a front fork tube. A pair of corrugated dust covers are provided between the aluminum cylinder and the front fork tube to prevent dust from entering through the gap between the aluminum cylinder and the front fork tube. One end of the corrugated dust cover is installed on the outer wall of the aluminum cylinder by a clamp, and the other end is installed on the front fork tube by a clamp. The outer wall of the end of the corrugated dust cover has a downwardly recessed groove.

[0003] The above-mentioned technical solution, by setting a corrugated dust cover, can protect the connection between the aluminum cylinder and the fork tube, and prevent dust from passing through the gap between the aluminum cylinder and the fork tube and damaging the shock absorber during operation. However, after long-term use, the corrugated dust cover is prone to damage due to aging and other factors. When replacing it, the entire shock absorber needs to be disassembled and reinstalled, which increases the workload of maintenance personnel. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a motorcycle front shock absorber assembly that solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a motorcycle front shock absorber assembly, including an outer sleeve, an inner sleeve slidably connected inside the outer sleeve, a shock-absorbing mechanism that cooperates with the inner sleeve installed inside the outer sleeve, and a protective mechanism installed outside the outer sleeve and the inner sleeve. The shock absorption mechanism includes a piston rod coaxially fixedly connected to the bottom of the inner sleeve. One end of the piston rod is fixedly connected to a piston that is slidably connected to the inner wall of the inner sleeve. The piston has multiple oil holes, and a first shock absorption spring and a second shock absorption spring are respectively provided on both sides of the piston.

[0006] Preferably, the other ends of the first and second damping springs are in contact with the inner top and inner bottom of the inner sleeve, respectively, which facilitates limiting one end of the first and second damping springs and can achieve a damping effect.

[0007] Preferably, the outer sleeve is provided with a third damping spring inside, and the two ends of the third damping spring are in contact with the inner bottom of the outer sleeve and the bottom of the inner sleeve, respectively, which can further increase the damping effect of the shock absorber.

[0008] Preferably, the outer surface of the outer sleeve is fixedly connected with connecting ears to facilitate connection with the motorcycle structure.

[0009] Preferably, the protective mechanism includes a first corrugated half-pipe and a second corrugated half-pipe arranged symmetrically. Corrugated connectors are provided on both sides of the first corrugated half-pipe, and corrugated insertion grooves that mate with the corrugated connectors are provided on both sides of the second corrugated half-pipe. The corrugated connectors are fixedly connected to the inner wall of the corrugated insertion grooves by adhesive, which facilitates splicing.

[0010] Preferably, both ends of the first corrugated half-pipe and the second corrugated half-pipe are fixedly connected to semi-circular fixing plates. The two opposite semi-circular fixing plates are symmetrically and sealed on the outside of the corresponding outer sleeve and inner sleeve. Both ends of the semi-circular fixing plates are fixedly connected to connecting plates, and bolts are installed between the two opposite connecting plates to facilitate installation and disassembly.

[0011] This utility model provides a motorcycle front shock absorber assembly. It has the following beneficial effects: This motorcycle front shock absorber assembly, through the cooperation of a first shock absorber spring, a second shock absorber spring, and hydraulic oil, plus a third shock absorber spring inside the outer sleeve, significantly improves the shock absorption effect, ensuring riding comfort and stability. The protective mechanism adopts a splicing design of a first corrugated half tube and a second corrugated half tube, which is fixed by corrugated connectors, corrugated insertion slots, bolts, connecting plates, and other components. It can effectively protect the shock absorber mechanism from dust, and can be directly disassembled and replaced in half when damaged, without disassembling the entire shock absorber assembly. This reduces the workload of maintenance personnel and improves maintenance efficiency. At the same time, the connecting ears on the outer sleeve also facilitate the connection and installation of the shock absorber to the motorcycle structure. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the outer sleeve and inner sleeve of this utility model; Figure 3 This is a schematic diagram of the structure of the first corrugated half-pipe of this utility model; Figure 4 This is a schematic diagram of the structure of the second corrugated half-pipe of this utility model.

[0013] In the diagram, 1. Outer sleeve; 2. Inner sleeve; 3. Piston rod; 4. Piston; 5. Oil hole; 6. First damping spring; 7. Second damping spring; 8. Third damping spring; 9. Connecting ear; 10. First corrugated half-pipe; 11. Second corrugated half-pipe; 12. Corrugated connector; 13. Corrugated insertion groove; 14. Semi-circular fixing plate; 15. Connecting plate; 16. Bolt. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: Figure 1 and Figure 2 As shown, a motorcycle front shock absorber assembly includes an outer sleeve 1, an inner sleeve 2 slidably connected inside the outer sleeve 1, and a shock-absorbing mechanism that cooperates with the inner sleeve 2 installed inside the outer sleeve 1. The shock-absorbing mechanism includes a piston rod 3 coaxially fixedly connected to the bottom of the inner sleeve 2. One end of the piston rod 3 is fixedly connected to a piston 4 slidably connected to the inner wall of the inner sleeve 2. The piston 4 has multiple oil holes 5. A first shock-absorbing spring 6 and a second shock-absorbing spring 7 are respectively provided on both sides of the piston 4. The other ends of the first shock-absorbing spring 6 and the second shock-absorbing spring 7 are in contact with the top and bottom of the inner sleeve 2, respectively.

[0016] During use, the inner sleeve 2 is filled with hydraulic oil, and the hydraulic oil can be easily moved and switched through the oil hole 5. With the cooperation of the first damping spring 6, the second damping spring 7 and the hydraulic oil, a damping effect can be achieved.

[0017] The outer sleeve 1 is equipped with a third shock-absorbing spring 8, and the two ends of the third shock-absorbing spring 8 are in contact with the inner bottom of the outer sleeve 1 and the bottom of the inner sleeve 2, respectively.

[0018] When the shock absorber is damped by the first damping spring 6, the second damping spring 7, and the hydraulic oil, the third damping spring 8 also plays a certain role in damping, which can improve the overall damping effect of the motorcycle front shock absorber.

[0019] The outer surface of the outer sleeve 1 is fixedly connected with a connecting lug 9, which facilitates the connection and installation of the shock absorber with the motorcycle frame and other structures.

[0020] like Figure 1 , Figure 3 and Figure 4As shown, protective mechanisms are installed on the outside of the outer sleeve 1 and the inner sleeve 2. These mechanisms include a first corrugated half-pipe 10 and a second corrugated half-pipe 11 arranged symmetrically. Corrugated connectors 12 are provided on both sides of the first corrugated half-pipe 10, and corrugated insertion grooves 13 that mate with the corrugated connectors 12 are provided on both sides of the second corrugated half-pipe 11. The corrugated connectors 12 and the inner walls of the corrugated insertion grooves 13 are fixedly connected by adhesive. Semicircular fixing plates 14 are fixedly connected to both ends of the first corrugated half-pipe 10 and the second corrugated half-pipe 11. Two opposing semicircular fixing plates 14 are symmetrically and sealingly fitted onto the outside of the corresponding outer sleeve 1 and inner sleeve 2. Connecting plates 15 are fixedly connected to both ends of the semicircular fixing plates 14, and bolts 16 are installed between the opposing connecting plates 15.

[0021] During installation, the first corrugated half-pipe 10 and the second corrugated half-pipe 11 can be symmetrically fitted onto the outside of the inner sleeve 2. Then, the corrugated connector 12 is inserted into the corrugated insertion groove 13 and fixed with adhesive. After the connection is fixed, the corresponding semi-circular fixing plate 14 is fixed onto the corresponding inner sleeve 1 and outer sleeve 2 with bolts 16, which can achieve a dustproof effect. When the protective mechanism is damaged, it can be directly disassembled in half without having to disassemble the entire motorcycle front shock absorber assembly for replacement, which can reduce the workload and improve work efficiency.

[0022] It should be noted that the adhesive in this technical solution can be either a nitrile rubber-based adhesive or a flexible polyurethane structural adhesive. Nitrile rubber-based adhesives contain oil-resistant groups, have strong adhesion to corrugated semi-pipes made of rubber / elastic plastic materials, and have a certain degree of elasticity after curing, which can buffer vibration and prevent cracking at the bonding joint. Flexible polyurethane structural adhesives have better weather resistance, good high and low temperature stability, moderate bonding strength, and the bonding surface can be separated with tools afterward, which meets the maintenance requirement in the document that "the protective mechanism can be replaced without disassembling the entire shock absorber".

[0023] Working principle: During use, the shock absorber can be connected and installed to the motorcycle frame and other structures through the connecting lugs 9 on the outer sleeve 1. The hydraulic oil filled inside the inner sleeve 2 can move and switch through multiple oil holes 5 on the piston 4. Together with the first shock absorber spring 6 and the second shock absorber spring 7 on both sides of the piston 4, it plays a basic shock absorption role. The third shock absorber spring 8 inside the outer sleeve 1 further improves the overall shock absorption effect. When installing the protective mechanism, the first corrugated half tube 10 and the second corrugated half tube 11 are symmetrically sleeved on the outside of the inner sleeve 2 and the outer sleeve 1. The corrugated connector 12 of the first corrugated half tube 10 is inserted into the corrugated insertion groove 13 of the second corrugated half tube 11 and fixed with adhesive. Then, the semi-circular fixing plates 14 and connecting plates 15 at both ends are fixed in the corresponding positions with bolts 16 to achieve sealing and dust prevention. If the protective mechanism is damaged in the future, the bolts 16 and the corrugated connector 12 and the corrugated insertion groove 13 can be directly removed for replacement without disassembling the entire shock absorber assembly.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A motorcycle front shock absorber assembly comprising an outer sleeve (1), characterized in that: The inner sleeve (2) is slidably connected inside the outer sleeve (1), and a shock-absorbing mechanism that cooperates with the inner sleeve (2) is installed inside the outer sleeve (1). A protective mechanism is installed outside the outer sleeve (1) and the inner sleeve (2). The shock absorption mechanism includes a piston rod (3) coaxially fixedly connected to the bottom of the inner sleeve (2). One end of the piston rod (3) is fixedly connected to a piston (4) that is slidably connected to the inner wall of the inner sleeve (2). The piston (4) has multiple oil holes (5). A first shock absorption spring (6) and a second shock absorption spring (7) are respectively provided on both sides of the piston (4).

2. A front shock absorber assembly for a motorcycle as set forth in claim 1 wherein: The other ends of the first damping spring (6) and the second damping spring (7) are in contact with the inner top and inner bottom of the inner sleeve (2), respectively.

3. The motorcycle front shock absorber assembly according to claim 1, characterized in that: The outer sleeve (1) is provided with a third shock-absorbing spring (8), and the two ends of the third shock-absorbing spring (8) are in contact with the inner bottom of the outer sleeve (1) and the bottom of the inner sleeve (2), respectively.

4. A front shock absorber assembly for a motorcycle as defined in claim 1 wherein: The outer surface of the outer sleeve (1) is fixedly connected with a connecting lug (9).

5. A front shock absorber assembly for a motorcycle as set forth in claim 1 further characterized by: The protective mechanism includes a first corrugated half-pipe (10) and a second corrugated half-pipe (11) arranged symmetrically. Both sides of the first corrugated half-pipe (10) are provided with corrugated connectors (12), and both sides of the second corrugated half-pipe (11) are provided with corrugated insertion grooves (13) that cooperate with the corrugated connectors (12). The corrugated connectors (12) and the inner walls of the corrugated insertion grooves (13) are fixedly connected by adhesive.

6. A front shock absorber assembly for a motorcycle as defined in claim 5 wherein: Both ends of the first corrugated half-pipe (10) and the second corrugated half-pipe (11) are fixedly connected to semi-circular fixing plates (14). The two opposite semi-circular fixing plates (14) are symmetrically sealed and fitted on the outside of the corresponding outer sleeve (1) and inner sleeve (2). Both ends of the semi-circular fixing plates (14) are fixedly connected to connecting plates (15). Bolts (16) are installed between the two opposite connecting plates (15).

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