Shock-absorbing enhanced motorcycle shock absorber with dustproof structure optimization

Abstract

The utility model belongs to motorcycle accessory technical field, concretely relates to a dustproof structure optimization's shock enhancement type motorcycle shock absorber, aims at solving the problem of poor dustproof performance and poor shock absorption performance in prior art. A dustproof structure optimization's shock enhancement type motorcycle shock absorber, including cylinder, be provided with piston in the cylinder, be provided with connecting rod on the piston, the one end of connecting rod extension the cylinder, be provided with spring between the bottom wall of cylinder and the one end of piston away from connecting rod, the utility model's shock absorber sets up spring between the one end of piston away from connecting rod and cylinder bottom wall, and spring is located in sealed shock absorption cavity. Spring has elastic deformation ability, when the vehicle is impacted, spring can occur elastic deformation to absorb and buffer a part of impact force, and the air pressure or oil pressure in shock absorption cavity jointly acts, greatly improves the overall shock absorption performance.

Description

Technical Field

[0001] This utility model belongs to the field of motorcycle parts technology, specifically relating to a dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber. Background Technology

[0002] Shock absorbers are used to buffer the impacts that a vehicle experiences during driving to ensure that the vehicle can run smoothly and stably. Many vehicles are equipped with shock absorbers, and motorcycles are one of them.

[0003] Existing motorcycle shock absorbers include a sealed damping chamber and a piston disposed within the chamber, with a connecting rod mounted on the piston. The movement of the piston within the damping chamber achieves damping and cushioning functions. While this type of shock absorber has a simple structure, dust can easily enter the damping chamber during practical application. Furthermore, this type of shock absorber relies solely on air or oil pressure within the damping chamber for damping, resulting in poor damping performance. Utility Model Content

[0004] This invention provides a dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber, aiming to solve the problems of poor dustproof performance and poor shock absorption performance of existing shock absorbers.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber includes a cylinder, a piston disposed inside the cylinder, a connecting rod disposed on the piston, the connecting rod extending out of one end of the cylinder, and a spring disposed between the end of the piston away from the connecting rod and the bottom wall of the cylinder;

[0007] A sealed damping cavity is formed between the bottom wall of the cylinder and the piston, and the spring is located inside the damping cavity;

[0008] The cylinder is provided with a top cover, the top cover is provided with a through hole that cooperates with the connecting rod, the side wall of the through hole is provided with a dustproof ring, and the side wall of the through hole is also provided with an annular groove for accommodating dust.

[0009] A further improved solution: the cross-sectional shape of the annular groove is an arc shape larger than a semicircle.

[0010] Based on the above technical solution: the cross-sectional shape of the annular groove is designed as an arc shape larger than a semicircle, which has a larger volume compared to other shapes. During motorcycle operation, when dust breaks through the dustproof ring and enters the through hole, the arc-shaped annular groove, larger than a semicircle, can hold more dust. With more dust collected within the annular groove, the amount of dust entering the shock absorber cavity is effectively reduced, further minimizing wear and impact on the internal components of the shock absorber and extending its service life.

[0011] A further improved solution: There are multiple dustproof rings, which are distributed along the axial direction of the through hole, and an annular groove is provided between two adjacent dustproof rings.

[0012] Based on the above technical solution: multiple dustproof rings are distributed along the axis of the through-hole, forming a multi-level dustproof barrier. When the motorcycle is in motion, dust attempting to enter the shock absorber cavity through the through-hole first encounters the first dustproof ring, where most of the dust is blocked and scraped off. Only a small amount of dust that manages to pass through the first dustproof ring continues to move inward, where it encounters the second dustproof ring, which again blocks and filters the dust. This process continues, with multiple layers of dustproof rings effectively preventing the vast majority of dust from entering the shock absorber cavity, greatly improving the dustproof effect, protecting the shock absorber's interior from dust corrosion, and extending the shock absorber's service life.

[0013] A further improvement: The upper cover is also provided with reinforcing ribs, which are disposed on the outer wall of the upper cover and at positions on the upper cover corresponding to the annular groove.

[0014] Based on the above technical solution: Adding reinforcing ribs to the outer wall of the top cover at positions corresponding to the annular grooves significantly enhances the overall structural strength of the top cover. The presence of the annular grooves weakens the structural continuity of the top cover to some extent, while the reinforcing ribs act as reinforcements to these weak points. When the motorcycle is subjected to various external impacts during operation, the reinforcing ribs effectively disperse and bear these forces, preventing the top cover from deforming or being damaged due to excessive local stress, thus ensuring the integrity and stability of the top cover and extending its service life.

[0015] A further improved solution: the reinforcing rib and the upper cover are an integral structure, the upper cover is fixed to the cylinder by threads, and a sealing gasket is provided between the upper cover and the cylinder.

[0016] Based on the above technical solution: the reinforcing rib and the top cover are integrated into a single structure, making them an inseparable whole. During motorcycle operation, the top cover is subjected to various complex external forces. The integrated structure avoids problems such as loosening and separation caused by weak connections between the reinforcing rib and the top cover, thus greatly improving the overall structural strength of the top cover. It can better withstand external impacts and internal stresses generated by the shock absorber, ensuring that the top cover is not easily damaged during long-term use and extending the service life of the top cover and the entire shock absorber.

[0017] A further improved solution: The upper cover is provided with an internal thread, and the cylinder is provided with an external thread that mates with the internal thread on the upper cover.

[0018] Based on the above technical solution, threaded connection is a common and simple connection method. When installing the shock absorber, simply align the internal thread of the top cover with the external thread of the cylinder, and then rotate the top cover to easily install it onto the cylinder. When disassembly is required for maintenance, repair, or replacement of parts, simply rotate the top cover in the opposite direction to remove it from the cylinder. This convenient installation and disassembly method greatly improves work efficiency and facilitates the daily maintenance and upkeep of the shock absorber.

[0019] A further improved solution: The cylinder is also provided with an extension ring, and a part of the upper cover extends into the extension ring. The extension ring and the cylinder are an integral structure.

[0020] Based on the above technical solution: the extension ring and the cylinder are an integral structure, and this integral molding method gives the extension ring high structural strength and stability. A portion of the top cover extends into the extension ring, effectively increasing the contact area and connection depth between the top cover and the cylinder. During motorcycle operation, the shock absorber is subjected to various complex forces and vibrations. This design effectively prevents loosening or separation between the top cover and the cylinder, greatly enhancing the stability of the connection and ensuring the shock absorber can operate continuously and stably.

[0021] A further improved solution: The connecting rod and the piston are an integral structure. A sealing ring is provided on the piston. The sealing ring is located between the piston and the inner wall of the cylinder. The cylinder is also provided with an inflation valve for inflating the shock-absorbing cavity. The inflation valve is a one-way valve to prevent gas leakage in the shock-absorbing cavity. The inflation valve is connected to the shock-absorbing cavity.

[0022] Based on the above technical solution: the sealing ring installed on the piston is located between the piston and the inner wall of the cylinder, playing a crucial sealing role. When the shock absorber is working, the sealing ring can effectively prevent gas leakage within the shock absorption chamber, maintaining a stable air pressure inside the chamber. Simultaneously, it can also prevent external dust, moisture, and other impurities from entering the shock absorption chamber, avoiding wear and corrosion of the internal parts and ensuring a clean and stable internal environment, thereby ensuring the shock absorber can properly perform its damping and cushioning function.

[0023] A further improved solution: The piston is provided with a mounting ring groove for mounting the sealing ring, and the sealing ring is adhered to the mounting ring groove.

[0024] Based on the above technical solution: the sealing ring is bonded to the mounting ring groove, further enhancing the reliability of the seal. The adhesive can fill the tiny gaps between the sealing ring and the mounting ring groove, forming a continuous sealing layer to prevent gas or liquid leakage from these gaps. Compared with simple mechanical nesting, the adhesive connection can withstand greater pressure and vibration. During motorcycle operation, even if the shock absorber is subjected to severe impacts and vibrations, the sealing ring is not easily separated from the mounting ring groove, thus ensuring the sealing of the shock absorber cavity and maintaining the stability of the internal air or hydraulic pressure of the shock absorber.

[0025] A further improved solution: A lower guide post is provided on the bottom wall, the lower end of the spring is sleeved on the lower guide post, the lower guide post and the bottom wall are an integral structure, an upper guide post is provided on the piston, the upper guide post and the piston are an integral structure, and the upper end of the spring is sleeved on the upper guide post.

[0026] Based on the above technical solution, the lower guide post on the bottom wall and the upper guide post on the piston provide precise guidance for the lower and upper ends of the spring, respectively. During the operation of the motorcycle shock absorber, the spring continuously undergoes compression and extension movements. The integrated lower and upper guide posts ensure that the spring always extends and retracts along the predetermined axis during movement, preventing deformation such as skewing or bending. This precise guiding effect makes the force on the spring more even, reducing the additional stress caused by spring deformation, thereby ensuring stable and reliable spring operation and extending the spring's service life.

[0027] The beneficial effects of this utility model are as follows:

[0028] The shock absorber of this invention has a spring installed between the piston end away from the connecting rod and the bottom wall of the cylinder, and the spring is located inside a sealed shock-absorbing chamber. The spring itself has elastic deformation capability. When the vehicle is impacted, the spring can undergo elastic deformation to absorb and buffer part of the impact force. Working together with the air pressure or oil pressure in the shock-absorbing chamber, it greatly improves the overall shock absorption performance, making the motorcycle ride smoother and more stable.

[0029] A dustproof ring is installed on the side wall of the through hole of the cylinder cover, which can effectively prevent dust from entering the shock absorber cavity. At the same time, an annular groove is also provided on the side wall of the through hole to accommodate dust. When a small amount of dust breaks through the dustproof ring and enters, the annular groove can temporarily hold the dust, further reducing the possibility of dust entering the shock absorber cavity, ensuring the cleanliness of the inside of the shock absorber, and extending the service life of the shock absorber. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For users of ordinary skills in the art, other related drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of a dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber according to this utility model.

[0032] Figure 2 This is a schematic diagram of the internal structure of a dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber according to this utility model.

[0033] Figure 3 This is a schematic diagram of the piston in a shock absorber for a motorcycle with optimized dustproof structure according to this utility model.

[0034] Figure 4 This is a schematic diagram of the middle cylinder of a shock absorber for a motorcycle with optimized dustproof structure according to this utility model.

[0035] Explanation of the labels in the diagram:

[0036] 1-Cylinder; 2-Piston; 3-Connecting rod; 4-Spring; 5-Damping chamber; 6-Top cover; 7-Dustproof ring; 8-Ring groove; 9-Extension ring; 10-Sealing ring; 11-Lower guide post; 12-Upper guide post; 13-Bottom wall. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model. All other embodiments obtained by users of the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0038] refer to Figures 1 to 4 A dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber includes a cylinder 1, a piston 2 is disposed inside the cylinder 1, a connecting rod 3 is disposed on the piston 2, the connecting rod 3 extends out of one end of the cylinder 1, and a spring 4 is disposed between the end of the piston 2 away from the connecting rod 3 and the bottom wall 13 of the cylinder 1.

[0039] A sealed damping cavity 5 is formed between the bottom wall 13 of the cylinder 1 and the piston 2, and the spring 4 is located inside the damping cavity 5;

[0040] The cylinder 1 is provided with an upper cover 6, the upper cover 6 is provided with a through hole that cooperates with the connecting rod 3, the side wall of the through hole is provided with a dustproof ring 7, and the side wall of the through hole is also provided with an annular groove 8 for accommodating dust.

[0041] Specifically: The cross-sectional shape of the annular groove 8 is an arc shape larger than a semicircle. Multiple dustproof rings 7 are distributed along the axial direction of the through hole, and an annular groove 8 is provided between adjacent dustproof rings 7. A reinforcing rib is also provided on the upper cover 6, located on the outer wall of the upper cover 6 at a position corresponding to the annular groove 8. The reinforcing rib and the upper cover 6 are an integral structure. The upper cover 6 is threaded to the cylinder 1, and a sealing gasket is provided between the upper cover 6 and the cylinder 1. The upper cover 6 has an internal thread, and the cylinder 1 has an external thread that mates with the internal thread on the upper cover 6. An extension ring 9 is also provided on the cylinder 1, with a portion of the upper cover 6 extending into the extension ring 9. The extension ring 9 and the cylinder 1 are an integral structure. The integral structure of the extension ring 9 and the cylinder 1 makes the mechanical properties of the entire cylinder 1 more uniform. With the top cover 6 extending into the extension ring 9, stress can be more evenly distributed onto the cylinder 1 under external force, avoiding localized stress concentration. This helps improve the overall fatigue and impact resistance of the shock absorber, enabling it to withstand greater external impacts during long-term use and reducing the risk of damage due to stress concentration. The integrated design of the extension ring 9 and cylinder 1 makes the shock absorber's appearance simpler, smoother, and the overall structure more compact. The design of the top cover 6 extending into the extension ring 9, without any additional protrusions, makes the shock absorber more aesthetically pleasing. Furthermore, the compact structure facilitates the installation and layout of the shock absorber on the motorcycle, saving space and improving the overall design rationality of the motorcycle.

[0042] The connecting rod 3 and the piston 2 are integrally formed. A sealing ring 10 is provided on the piston 2, located between the piston 2 and the inner wall of the cylinder 1. An inflation valve for inflating the damping chamber 5 is also provided on the cylinder 1. This inflation valve is a one-way valve to prevent gas leakage from the damping chamber 5 and is connected to the damping chamber 5. An mounting ring groove 8 for mounting the sealing ring 10 is provided on the piston 2, and the sealing ring 10 is adhered to the mounting ring groove 8. A lower guide post 11 is provided on the bottom wall 13, and the lower end of the spring 4 is sleeved on the lower guide post. The lower guide post and the bottom wall 13 are integrally formed. An upper guide post 12 is provided on the piston 2, and the upper end of the spring 4 is sleeved on the upper guide post 12. The stable working state of the spring 4 and the enhanced structural integrity work together to improve the stability of the shock absorber's performance. Because spring 4 can accurately extend and retract along the guide post, and the entire shock absorber structure is more robust, the shock absorber can provide a relatively consistent damping effect under different road conditions and riding conditions. Whether it is a slight vibration on a flat road or a severe impact on a bumpy road, the shock absorber can effectively absorb and disperse energy as designed, making the motorcycle ride more smoothly and improving riding comfort and safety.

[0043] The working principle of this embodiment is as follows: When the motorcycle is impacted by the road surface during operation, the connecting rod 3 drives the piston 2 to move within the cylinder 1. At this time, the air pressure or oil pressure in the damping chamber 5 changes, generating a resistance opposite to the direction of piston 2's movement. This resistance consumes some of the impact energy, providing initial shock absorption. Simultaneously, the piston 2 compresses or stretches the spring 4 during its movement, causing the spring 4 to undergo elastic deformation. According to Hooke's Law, the spring 4 generates a spring force opposite to the direction of deformation. This spring force also consumes impact energy, further buffering the impact. Through the combined action of the resistance generated by air or oil pressure and the spring force generated by spring 4, effective buffering of the impact received by the motorcycle during operation is achieved, ensuring smooth and stable vehicle operation.

[0044] During motorcycle operation, the dust seal 7 fits tightly against the surface of the connecting rod 3, forming a sealed barrier to prevent dust from entering the shock absorber cavity 5 as the connecting rod 3 moves. When dust adheres to the connecting rod 3 and attempts to enter, the dust seal 7 will scrape it off. The annular groove 8 serves as an additional protection; if a small amount of dust breaks through the dust seal 7, the annular groove 8 can contain it, preventing the dust from penetrating further into the shock absorber cavity 5, thus ensuring the cleanliness of the shock absorber cavity 5 and maintaining the normal operating performance of the shock absorber.

[0045] This utility model is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this utility model. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this utility model are within the protection scope of this utility model.

Claims

1. A dustproof, optimized, and enhanced shock-absorbing motorcycle shock absorber, characterized in that: The device includes a cylindrical body, a piston is disposed inside the cylindrical body, a connecting rod is disposed on the piston, the connecting rod extends out of one end of the cylindrical body, and a spring is disposed between the end of the piston away from the connecting rod and the bottom wall of the cylindrical body; A sealed damping cavity is formed between the bottom wall of the cylinder and the piston, and the spring is located inside the damping cavity; The cylinder is provided with a top cover, the top cover is provided with a through hole that cooperates with the connecting rod, the side wall of the through hole is provided with a dustproof ring, and the side wall of the through hole is also provided with an annular groove for accommodating dust.

2. The dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber according to claim 1, characterized in that: The cross-sectional shape of the annular groove is an arc shape larger than a semicircle.

3. The dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber according to claim 2, characterized in that: There are multiple dustproof rings, which are distributed along the axial direction of the through hole, and an annular groove is provided between two adjacent dustproof rings.

4. The dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber according to claim 3, characterized in that: The upper cover is also provided with reinforcing ribs, which are disposed on the outer wall of the upper cover and at positions on the upper cover corresponding to the annular groove.

5. A dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber according to claim 4, characterized in that: The reinforcing rib and the top cover are an integral structure. The top cover is fixed to the cylinder by threads, and a sealing gasket is provided between the top cover and the cylinder.

6. The dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber according to claim 5, characterized in that: The upper cover is provided with an internal thread, and the cylinder is provided with an external thread that mates with the internal thread on the upper cover.

7. A dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber according to claim 6, characterized in that: An extension ring is also provided on the cylinder body, and a portion of the upper cover extends into the extension ring. The extension ring and the cylinder body are an integral structure.

8. The dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber according to claim 1, characterized in that: The connecting rod and the piston are an integral structure. A sealing ring is provided on the piston. The sealing ring is located between the piston and the inner wall of the cylinder. The cylinder is also provided with an inflation valve for inflating the shock-absorbing cavity. The inflation valve is a one-way valve to prevent gas leakage in the shock-absorbing cavity. The inflation valve is connected to the shock-absorbing cavity.

9. A dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber according to claim 8, characterized in that: The piston is provided with a mounting ring groove for mounting the sealing ring, and the sealing ring is adhered to the mounting ring groove.

10. A dustproof structure optimized shock-absorbing enhanced motorcycle shock absorber according to claim 9, characterized in that: A lower guide post is provided on the bottom wall, and the lower end of the spring is sleeved on the lower guide post. The lower guide post and the bottom wall are an integral structure. An upper guide post is provided on the piston, and the upper guide post and the piston are an integral structure. The upper end of the spring is sleeved on the upper guide post.

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