Bicycle chainring assembly with shock absorbing function

Abstract

The utility model relates to the technical field of bicycle sprocket assembly components, and disclose a bicycle sprocket assembly component with shock -absorbing function, include: bicycle frame, front wheel, handle, saddle, pedal, rear wheel, chain and front wheel sprocket, the front side rotation connection of bicycle frame has handle, the bottom rotation connection of handle has car front wheel, the rear side rotation connection of bicycle frame has car rear wheel, the top fixed connection of bicycle frame has saddle, the inside of bicycle frame is provided with pedal, the side fixed connection of pedal has front wheel sprocket, the outside engagement connection of front wheel sprocket has chain, set up in the shock attenuation component of bicycle frame inboard, the utility model cooperates with shock attenuation with bottom, spring, damping component, and cooperation side protection and guiding buffer form all -round shock attenuation system, solve traditional rigid connection problem, guarantee transmission stability, reduce pedal fatigue, and adapt to multiple scenes.

Description

Technical Field

[0001] This utility model relates to the technical field of bicycle chainring assembly components, specifically a bicycle chainring assembly component with shock absorption function. Background Technology

[0002] The sprocket assembly is a core component of the bicycle drivetrain, responsible for transmitting the rider's pedaling force to the wheels via the chain. Its transmission stability is directly related to riding comfort. As cycling scenarios expand from urban commuting to mountain biking and long-distance travel, users' performance requirements for sprocket assemblies are becoming increasingly diversified.

[0003] Most existing sprocket assemblies use a rigid structure. Rigid structures cannot buffer the impact between the rider's foot and the sprocket during pedaling, which can easily cause foot fatigue, especially during long rides or high-intensity pedaling, when the discomfort is more pronounced. Although some mountain bikes have added shock-absorbing devices to the frame, the rigid connection between the sprocket assembly and the frame still makes the drivetrain a "shock-absorbing blind spot." The impact acts directly on the drive components, affecting the transmission accuracy and riding experience. As consumers' requirements for riding comfort and component durability increase, and as cycling becomes more professional, we have proposed a bicycle sprocket assembly with shock absorption function. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a bicycle sprocket assembly with shock absorption function, thus solving the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: A bicycle sprocket assembly with shock absorption function, including: The bicycle includes a frame, a front wheel, handlebars, a seat, pedals, a rear wheel, a chain, and a front wheel sprocket. The handlebars are rotatably connected to the front of the bicycle frame, the front wheel is rotatably connected to the bottom of the handlebars, the rear wheel is rotatably connected to the rear of the bicycle frame, the seat is fixedly connected to the top of the bicycle frame, pedals are installed inside the bicycle frame, the front wheel sprocket is fixedly connected to the side of the pedals, and the chain is engaged with the outer side of the front wheel sprocket. A shock-absorbing assembly is installed inside the bicycle frame. A shock-absorbing support frame is fixedly connected to the inside of the bicycle frame. The shock-absorbing assembly is installed inside the shock-absorbing support frame. The shock-absorbing assembly consists of a rigid spring arc platform, a sliding support frame, a sprocket support roller, a shock-absorbing coarse spring, a limit protection slip ring, a damping slide rod, a damping spring, a damping piston, a damping sleeve, a shock-absorbing fine spring, and a limit ring. The shock-absorbing assembly is used to provide shock absorption and buffer protection for the pedals and the front wheel sprocket.

[0006] Preferably, a rear wheel sprocket is rotatably connected to the rear side of the bicycle frame, a chain is engaged with the outer side of the rear wheel sprocket, and a rear wheel sprocket is fixedly connected to the side of the rear wheel.

[0007] Preferably, a side protective plate is fixedly connected to the side of the shock-absorbing support frame. The side protective plates are symmetrically distributed on the side of the shock-absorbing support frame. A guide sliding hole is opened on the side of the side protective plate. A foot pedal is slidably connected to the inner side of the guide sliding hole. A sliding hole is opened on the inner bottom surface of the shock-absorbing support frame.

[0008] Preferably, the shock absorption assembly comprises a bottom buffer assembly, a spring shock absorption assembly, and a damping buffer assembly. The bottom buffer assembly includes a rigid spring arc platform, a sliding support frame, and a sprocket support roller. A rigid spring arc platform is fixedly connected to the inner bottom surface of the shock absorption support frame, and an inverted rigid spring arc platform is fixedly connected to the top surface of the rigid spring arc platform. A sliding support frame is slidably connected to the inner side of the shock absorption support frame, and a rigid spring arc platform is fixedly connected to the bottom surface of the sliding support frame. A sprocket support roller is fixedly connected to the inner side of the sliding support frame, and a sliding support frame is slidably connected to the inner side of the sliding hole. A foot pedal is rotatably connected to the inner side of the sprocket support roller.

[0009] Preferably, a side guide buffer plate is fixedly connected to the inner side of the shock-absorbing support frame, the side guide buffer plate is symmetrically distributed on the inner side of the shock-absorbing support frame, and a sliding support frame is slidably connected to the side of the side guide buffer plate.

[0010] Preferably, the damping buffer assembly includes a damping slide rod, a damping spring, a damping piston, and a damping sleeve. The top surface of the sliding support frame is fixedly connected to the damping slide rod, the inner top surface of the shock-absorbing support frame is fixedly connected to the damping sleeve, the inner side of the damping sleeve is slidably connected to the damping slide rod, the top outer side of the damping slide rod is fixedly connected to the damping piston, the inner side of the damping sleeve is slidably connected to the damping slide rod, and the top outer side of the damping slide rod is fixedly connected to the damping spring.

[0011] Preferably, the top and bottom surfaces of the damping piston are symmetrically provided with damping springs, and the top surface of the damping piston has a connecting hole, which is distributed in a ring at equal intervals on the top surface of the damping piston.

[0012] Preferably, the spring damping assembly includes a thick damping spring, a limiting protective slip ring, a thin damping spring, and a limiting ring. The thick damping spring is fixedly connected to the top surface of the sliding support frame. The limiting protective slip ring is fixedly connected to the top surface of the thick damping spring. The thin damping spring is fixedly connected to the top surface of the limiting protective slip ring. The thin damping spring is fixedly connected to the inner top surface of the damping support frame. The limiting protective slip ring is slidably connected to the outer side of the damping sleeve. The limiting ring is fixedly connected to the top side of the damping sleeve. The limiting ring is located at the top of the limiting protective slip ring.

[0013] Compared with the prior art, the advantages of this utility model are: A bicycle sprocket assembly with shock absorption is provided, offering the following benefits: This bicycle sprocket assembly with shock absorption function effectively solves the problems of shock absorption blind spots, riding fatigue, and transmission accuracy caused by the rigid connection of traditional sprockets through the synergistic effect of multiple types of shock absorption structures, demonstrating significant practical value: In the bottom buffer assembly, the rigid spring arc platform, together with the sliding support frame and the sprocket support roller, can initially buffer the impact on the bottom of the pedals and front wheel sprocket without interfering with the rider's pedaling power; the spring shock absorption assembly absorbs longitudinal impacts of different intensities through the graded elastic deformation of the shock-absorbing coarse and fine springs, while the limiting protection slip ring and limiting ring prevent excessive spring deformation and ensure the stability of the assembly; in the damping buffer assembly, the damping slide rod drives the damping piston to slide along the damping sleeve, and together with the damping effect of the damping spring and the connecting hole, it slows down the spring rebound speed and avoids the impact rebound from exacerbating discomfort. Meanwhile, the side protective plates and side guide buffer plates can respectively achieve external protection and sliding guide buffering, forming an all-round shock absorption system of "bottom buffering - spring shock absorption - damping energy dissipation", which not only ensures the stability of chain drive, but also reduces pedaling fatigue, making it suitable for diverse riding scenarios such as mountain biking and long-distance riding, and improving riding comfort and component durability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the overall structure of this utility model disassembled; Figure 3 This is a cross-sectional schematic diagram of a partial structural vibration damping device of a utility model. Figure 4 for Figure 3 A magnified view of part A in the diagram.

[0015] In the diagram: 1. Bicycle frame; 2. Front wheel; 3. Handlebars; 4. Seat; 5. Pedals; 6. Rear wheel; 7. Chain; 8. Side guard plate; 9. Shock absorber support frame; 10. Front wheel sprocket; 11. Sliding hole; 12. Stiff spring arch; 13. Sliding support frame; 14. Rear wheel sprocket; 15. Sprocket support roller; 16. Shock absorber coarse spring; 17. Limiting protection slip ring; 18. Damping slide rod; 19. Damping spring; 20. Damping piston; 21. Damping sleeve; 22. Shock absorber fine spring; 23. Limiting ring; 24. Side guide buffer plate; 25. Connecting hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0017] Please see Figure 1-4 This utility model provides a technical solution: A bicycle sprocket assembly with shock absorption function, including: The bicycle frame 1, front wheel 2, handlebars 3, seat 4, pedals 5, rear wheel 6, chain 7, and front wheel sprocket 10 are connected to the bicycle frame 1. The handlebars 3 are rotatably connected to the front side of the bicycle frame 1. The front wheel 2 is rotatably connected to the bottom of the handlebars 3. The rear wheel 6 is rotatably connected to the rear side of the bicycle frame 1. The seat 4 is fixedly connected to the top of the bicycle frame 1. The pedals 5 are installed inside the bicycle frame 1. The front wheel sprocket 10 is fixedly connected to the side of the pedals 5. The chain 7 is engaged with the outer side of the front wheel sprocket 10. A shock-absorbing assembly is installed inside the bicycle frame 1. A shock-absorbing support frame 9 is fixedly connected to the inside of the bicycle frame 1. The shock-absorbing assembly is installed inside the shock-absorbing support frame 9. The shock-absorbing assembly consists of a rigid spring arc platform 12, a sliding support frame 13, a sprocket support roller 15, a shock-absorbing coarse spring 16, a limit protection slip ring 17, a damping slide rod 18, a damping spring 19, a damping piston 20, a damping sleeve 21, a shock-absorbing fine spring 22, and a limit ring 23. The shock-absorbing assembly is used to provide shock absorption and buffer protection for the pedals 5 and the front wheel sprocket 10.

[0018] Furthermore, a rear wheel sprocket 14 is rotatably connected to the rear side of the bicycle frame 1, a chain 7 is engaged with the outer side of the rear wheel sprocket 14, and the rear wheel sprocket 14 is fixedly connected to the side of the rear wheel 6.

[0019] Furthermore, a side protective plate 8 is fixedly connected to the side of the shock-absorbing support frame 9. The side protective plates 8 are symmetrically distributed on the side of the shock-absorbing support frame 9. A guide sliding hole is opened on the side of the side protective plate 8. A foot pedal 5 is slidably connected to the inside of the guide sliding hole. A sliding hole 11 is opened on the inner bottom surface of the shock-absorbing support frame 9. Through the function of the side protective plate 8, the shock-absorbing component is externally protected.

[0020] Furthermore, the shock absorption assembly consists of a bottom buffer assembly, a spring shock absorption assembly, and a damping buffer assembly. The bottom buffer assembly includes a rigid spring arc platform 12, a sliding support frame 13, and a sprocket support roller 15. The rigid spring arc platform 12 is fixedly connected to the inner bottom surface of the shock absorption support frame 9, and an inverted rigid spring arc platform 12 is fixedly connected to the top surface of the rigid spring arc platform 12. The sliding support frame 13 is slidably connected to the inner side of the shock absorption support frame 9, and the rigid spring arc platform 12 is fixedly connected to the bottom surface of the sliding support frame 13. The sprocket support roller 15 is fixedly connected to the inner side of the sliding support frame 13, and the sliding support frame 13 is slidably connected to the inner side of the sliding hole 11. The pedal 5 is rotatably connected to the inner side of the sprocket support roller 15. Through the action of the bottom buffer assembly, a small amount of bottom buffering is achieved for the bicycle sprocket, without affecting the force drive of the pedal 5.

[0021] Furthermore, a side guide buffer plate 24 is fixedly connected to the inner side of the shock-absorbing support frame 9. The side guide buffer plate 24 is symmetrically distributed on the inner side of the shock-absorbing support frame 9. The side guide buffer plate 24 is slidably connected to the side of the sliding support frame 13. Through the function of the guide buffer plate 24, the sliding support frame 13 is guided and slid while providing side buffering.

[0022] Furthermore, the damping buffer assembly includes a damping slide rod 18, a damping spring 19, a damping piston 20, and a damping sleeve 21. The top surface of the sliding support frame 13 is fixedly connected to the damping slide rod 18, the inner top surface of the shock-absorbing support frame 9 is fixedly connected to the damping sleeve 21, the inner side of the damping sleeve 21 is slidably connected to the damping slide rod 18, the top outer side of the damping slide rod 18 is fixedly connected to the damping piston 20, the inner side of the damping sleeve 21 is slidably connected to the damping slide rod 18, and the top outer side of the damping slide rod 18 is fixedly connected to the damping spring 19. Through the action of the damping buffer assembly, the rebound of the spring shock-absorbing assembly is buffered.

[0023] Furthermore, damping springs 19 are symmetrically arranged on the top and bottom surfaces of the damping piston 20, and a connecting hole 25 is opened on the top surface of the damping piston 20. The connecting holes 25 are distributed in an annular shape at equal intervals on the top surface of the damping piston 20.

[0024] Furthermore, the spring damping assembly includes a thick damping spring 16, a limiting protective slip ring 17, a thin damping spring 22, and a limiting ring 23. The thick damping spring 16 is fixedly connected to the top surface of the sliding support frame 13, the limiting protective slip ring 17 is fixedly connected to the top surface of the thick damping spring 16, the thin damping spring 22 is fixedly connected to the top surface of the limiting protective slip ring 17, the thin damping spring 22 is fixedly connected to the inner top surface of the damping support frame 9, the limiting protective slip ring 17 is slidably connected to the outer side of the damping sleeve 21, and the limiting ring 23 is fixedly connected to the top side of the damping sleeve 21. The limiting ring 23 is located on the top of the limiting protective slip ring 17. Through the action of the spring damping assembly, it cooperates with the damping buffer assembly to provide shock absorption protection for the bicycle sprocket.

[0025] Structural Description: Bicycle frame (1): The front side rotates to connect the handlebars (3), the rear side rotates to connect the rear wheel (6), the top is fixed to the seat (4), and the inner side is fixed to the shock-absorbing support frame (9), providing an installation reference for each functional component, while supporting the rider's weight and ensuring the overall stability of the bicycle structure; Front wheel (2): Rotatably connected to the bottom of the handlebar (3), serving as a guide and front support component of the bicycle. It can be used with the handlebar (3) to adjust the direction of travel and work with the rear wheel (6) to achieve stable movement during riding. Handlebar (3): It is rotatably connected to the front side of the bicycle frame (1) and rotatably connected to the front wheel (2) at the bottom. It is used by the rider to hold and control the direction of travel. It is the core component for controlling the bicycle. Seat (4): Fixed to the top of the bicycle frame (1), it provides support for the rider's sitting posture. Its height and comfort can be adjusted according to needs to ensure the comfort of long-term riding. Pedal (5): Set inside the bicycle frame (1), the front wheel sprocket (10) is fixed on the side, the sprocket support roller (15) is rotatably connected on the inner side, and the guide slide hole of the side guard plate (8) is slidably connected on the outer side. When the rider pedals, the front wheel sprocket (10) can be rotated, converting human power into transmission power. At the same time, it can slide slightly with the shock absorption component to adapt to the shock absorption action. Rear wheel (6): Rotatably connected to the rear side of the bicycle frame (1), with the rear wheel sprocket (14) fixed on the side. It can rotate under the transmission of the chain (7) to provide driving power for the bicycle and is the core drive wheel; Chain (7): It is meshed with the outer side of the front wheel sprocket (10) and the rear wheel sprocket (14). As a transmission medium, it can transmit the rotational power of the front wheel sprocket (10) to the rear wheel sprocket (14), thereby driving the rear wheel (6) to rotate. Side protective plate (8): symmetrically fixed to the side of the shock-absorbing support frame (9), with guide sliding holes on the side and foot pedal (5) slidably connected to the inside. It can block external dust and impurities from entering the shock-absorbing component and protect the shock-absorbing component from contamination. At the same time, it provides sliding guidance for the foot pedal (5) through the guide sliding holes. Shock-absorbing support frame (9): fixed to the inside of the bicycle frame (1), with sliding holes (11) on the bottom surface of the inside, side guide buffer plate (24) and damping sleeve (21) fixed on the inside, and side protective plate (8) fixed on the side, providing installation and operation space for the shock-absorbing components, and serving as the load-bearing frame of the shock-absorbing system; Front wheel sprocket (10): Fixed to the side of the pedal (5), with the chain (7) meshing on the outside, it can rotate with the pedal (5) and transmit the rider's pedaling force to the chain (7). It is the power input component of the transmission system. Sliding hole (11): It is opened on the bottom surface inside the shock-absorbing support frame (9) and is slidably connected to the sliding support frame (13) on the inside. It provides trajectory restriction for the up and down sliding of the sliding support frame (13) and ensures that it moves smoothly in a fixed direction. Rigid spring arc platform (12): Part of it is fixed to the bottom surface inside the shock-absorbing support frame (9), and part of it is fixed to the bottom surface of the sliding support frame (13). The top surface of the rigid spring arc platform (12) on the shock-absorbing support frame (9) is fixed with an inverted rigid spring arc platform (12). It is made of elastic rigid material and can absorb the bottom impact through mutual compression deformation, providing initial buffer for the sprocket assembly. Sliding support frame (13): It is slidably connected to the inner side of the shock-absorbing support frame (9) and the inner side of the sliding hole (11). It is slidably connected to the side guide buffer plate (24) on the side. The bottom surface is fixed with a rigid spring arc platform (12). The top surface is fixed with a damping slide rod (18) and a shock-absorbing coarse spring (16). The inner side is fixed with a sprocket support roller (15). It can slide up and down with the impact, driving each shock-absorbing component to work together. It is the core transmission carrier of the shock-absorbing assembly. Rear wheel sprocket (14): Fixed to the side of the rear wheel (6), with the outer side meshing with the chain (7), it can rotate under the drive of the chain (7), thereby driving the rear wheel (6), and is the power output component of the transmission system; Sprocket support roller (15): Fixed to the inside of the sliding support frame (13), the inside is rotatably connected to the pedal (5), providing rotational support for the pedal (5), ensuring that the pedal (5) drives the front wheel sprocket (10) to rotate stably, while not affecting the shock-absorbing sliding of the sliding support frame (13); The thick damping spring (16) has one end fixed to the top surface of the sliding support frame (13) and the other end fixed to the bottom surface of the limiting protection slip ring (17). It has a large elastic coefficient and can absorb medium-intensity longitudinal impact through compression deformation. It can be used in conjunction with the thin damping spring (22) to achieve graded damping. Limiting protection slip ring (17): It is slidably connected to the outside of the damping sleeve (21), with a shock-absorbing thick spring (16) fixed on the bottom surface and a shock-absorbing thin spring (22) fixed on the top surface. It can slide along the damping sleeve (21) and at the same time limit the deformation direction of the shock-absorbing thick spring (16) and the shock-absorbing thin spring (22) to prevent the spring from deflecting. Damping slide bar (18): One end is fixed to the top surface of the sliding support frame (13), and the other end is slidably connected to the inside of the damping sleeve (21). The top outer side is fixed with the damping piston (20) and the damping spring (19). It can slide with the sliding support frame (13) to drive the damping piston (20) and the damping spring (19) to generate a damping effect and consume the impact energy. Damping spring (19): Symmetrically fixed to the top and bottom surfaces of the damping piston (20), using elastic damping material, which can deform to generate damping force when the damping piston (20) slides, thereby slowing down the sliding speed and helping to consume impact energy; Damping piston (20): It is fixed on the outer side of the top of the damping slide rod (18) and slidably connected to the inner side of the damping sleeve (21). The top surface has annularly distributed connecting holes (25). The top and bottom surfaces are fixed with damping springs (19). When sliding, it can squeeze the medium inside the damping sleeve (21). The medium flows through the connecting holes (25) to generate a damping effect, further dissipating energy and reducing vibration. Damping sleeve (21): It is fixed on the inner top surface of the shock absorber support frame (9), and the inner side is slidably connected to the damping slide rod (18) and the damping piston (20). The outer side is slidably connected to the limiting protection slip ring (17). The top side is fixed with the limiting ring (23). The inside contains the damping medium, which provides sliding space for the damping piston (20) and the damping slide rod (18). It is the core housing component of the damping buffer assembly. Shock-absorbing thin spring (22): One end is fixed to the top surface of the limiting protection slip ring (17), and the other end is fixed to the top surface inside the shock-absorbing support frame (9). It has a small elastic coefficient and can absorb weak longitudinal impact through compression deformation. It forms graded shock absorption with the shock-absorbing thick spring (16) to improve the fineness of shock absorption. Limiting ring (23): Fixed to the top side of the damping sleeve (21), located above the limiting protection slip ring (17), which can prevent the limiting protection slip ring (17) from sliding upwards excessively, avoid the shock-absorbing thin spring (22) from being over-compressed and damaged, and ensure the stability of the spring damping assembly; Side guide buffer plate (24): symmetrically fixed inside the shock-absorbing support frame (9), and slidably connected to the sliding support frame (13). It is made of elastic guide material, which can provide side sliding guidance for the sliding support frame (13) and buffer side impact to prevent the sliding support frame (13) from deflecting. Connecting holes (25): These are circumferentially and equidistantly formed on the top surface of the damping piston (20) to allow the medium inside the damping sleeve (21) to flow, thereby generating a stable damping force when the damping piston (20) slides, ensuring a uniform damping effect. Working principle: When using this invention, during riding, the pedal 5 is driven by force to rotate the front wheel sprocket 10. The power is transmitted through the chain 7 to the rear wheel sprocket 14, driving the rear wheel 6. When encountering bumpy roads or impacts during pedaling, multiple components work together to absorb shock: the bottom buffer component acts first, and the sliding support frame 13 slides along the side guide buffer plate 24 inside the shock-absorbing support frame 9 with the impact. The rigid spring arc platform 12 on its bottom surface and the rigid spring arc platform 12 inside the shock-absorbing support frame 9 are squeezed and deformed against each other, initially absorbing the bottom impact. At the same time, the sprocket support roller 15 ensures the stable rotation of the pedal 5 and does not interfere with the pedaling force. When subjected to impact force, the sliding support frame 13 slides upward to compress the spring shock-absorbing component, and the shock-absorbing thin spring 22 is deformed by force to absorb shock. When the impact force is further transmitted... The guide causes the limiting protection slip ring 17 to slide upward and contact the limiting ring 23. Through the action of the limiting ring 23, the compression stroke of the damping thin spring 22 is protected, while the damping coarse spring 16 is compressed. The damping coarse spring 16 absorbs medium-intensity impacts through elastic deformation. At the same time, when the sliding support frame 13 slides, it drives the damping slide rod 18 to move upward in sync. The damping slide rod 18 drives the damping piston 20 to slide along the damping sleeve 21. The damping springs 19 on the upper and lower sides of the damping piston 20 deform to generate damping force and slow down the sliding speed. The medium inside the damping sleeve 21 flows through the connecting hole 25 of the damping piston 20 to further consume the impact energy, avoid the spring rebound and generate secondary impacts, ensure the stable operation of each component, and form a continuous and graded shock absorption system that takes into account both transmission stability and riding comfort.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sprocket assembly for a bicycle with shock absorbing function, characterized in that, include: The bicycle frame (1), front wheel (2), handlebars (3), seat (4), pedals (5), rear wheel (6), chain (7) and front wheel sprocket (10) are provided. The handlebars (3) are rotatably connected to the front side of the bicycle frame (1). The front wheel (2) is rotatably connected to the bottom of the handlebars (3). The rear wheel (6) is rotatably connected to the rear side of the bicycle frame (1). The seat (4) is fixedly connected to the top of the bicycle frame (1). The pedals (5) are provided inside the bicycle frame (1). The front wheel sprocket (10) is fixedly connected to the side of the pedals (5). The chain (7) is engaged with the outer side of the front wheel sprocket (10). A shock-absorbing assembly is installed inside the bicycle frame (1). A shock-absorbing support frame (9) is fixedly connected to the inside of the bicycle frame (1). A shock-absorbing assembly is installed inside the shock-absorbing support frame (9). The shock-absorbing assembly consists of a rigid spring arc platform (12), a sliding support frame (13), a sprocket support roller (15), a shock-absorbing coarse spring (16), a limit protection slip ring (17), a damping slide rod (18), a damping spring (19), a damping piston (20), a damping sleeve (21), a shock-absorbing fine spring (22), and a limit ring (23). The shock-absorbing assembly is used to provide shock absorption and buffer protection for the pedals (5) and the front wheel sprocket (10).

2. The bicycle sprocket assembly with shock absorption function according to claim 1, characterized in that, The rear wheel sprocket (14) is rotatably connected to the rear side of the bicycle frame (1), and a chain (7) is meshed with the outer side of the rear wheel sprocket (14). The rear wheel sprocket (14) is fixedly connected to the side of the rear wheel (6).

3. The sprocket assembly of claim 1, wherein the sprocket assembly further comprises a plurality of dampening members, each of the plurality of dampening members being disposed between a corresponding one of the plurality of teeth and the corresponding one of the plurality of tooth openings. The side of the shock-absorbing support frame (9) is fixedly connected to a side protective plate (8). The side protective plates (8) are symmetrically distributed on the side of the shock-absorbing support frame (9). The side of the side protective plate (8) is provided with a guide sliding hole. The foot pedal (5) is slidably connected to the inside of the guide sliding hole. The bottom surface of the shock-absorbing support frame (9) is provided with a sliding hole (11).

4. The bicycle sprocket assembly with shock absorption function according to claim 3, characterized in that, The shock absorption assembly consists of a bottom buffer assembly, a spring shock absorption assembly, and a damping buffer assembly. The bottom buffer assembly includes a rigid spring arc platform (12), a sliding support frame (13), and a sprocket support roller (15). The rigid spring arc platform (12) is fixedly connected to the inner bottom surface of the shock absorption support frame (9). An inverted rigid spring arc platform (12) is fixedly connected to the top surface of the rigid spring arc platform (12). The sliding support frame (13) is slidably connected to the inner side of the shock absorption support frame (9). The rigid spring arc platform (12) is fixedly connected to the bottom surface of the sliding support frame (13). The sprocket support roller (15) is fixedly connected to the inner side of the sliding support frame (13). The sliding support frame (13) is slidably connected to the inner side of the sliding hole (11). The foot pedal (5) is rotatably connected to the inner side of the sprocket support roller (15).

5. The bicycle sprocket assembly with shock absorption function according to claim 4, characterized in that, The inner side of the shock-absorbing support frame (9) is fixedly connected to a side guide buffer plate (24), which is symmetrically distributed on the inner side of the shock-absorbing support frame (9). The side guide buffer plate (24) is slidably connected to a sliding support frame (13).

6. The bicycle sprocket assembly with shock absorption function according to claim 5, characterized in that, The damping buffer assembly includes a damping slide rod (18), a damping spring (19), a damping piston (20), and a damping sleeve (21). The top surface of the sliding support frame (13) is fixedly connected to the damping slide rod (18). The inner top surface of the shock-absorbing support frame (9) is fixedly connected to the damping sleeve (21). The inner side of the damping sleeve (21) is slidably connected to the damping slide rod (18). The top outer side of the damping slide rod (18) is fixedly connected to the damping piston (20). The inner side of the damping sleeve (21) is slidably connected to the damping slide rod (18). The top outer side of the damping slide rod (18) is fixedly connected to the damping spring (19).

7. The bicycle sprocket assembly with shock absorption function according to claim 6, characterized in that, The damping piston (20) has damping springs (19) symmetrically arranged on its top and bottom surfaces. The top surface of the damping piston (20) has a connecting hole (25) which is distributed in an annular shape at equal intervals on the top surface of the damping piston (20).

8. The bicycle sprocket assembly with shock absorption function according to claim 6, characterized in that, The spring damping assembly includes a damping coarse spring (16), a limiting protective slip ring (17), a damping fine spring (22), and a limiting ring (23). The top surface of the sliding support frame (13) is fixedly connected to the damping coarse spring (16). The top surface of the damping coarse spring (16) is fixedly connected to the limiting protective slip ring (17). The top surface of the limiting protective slip ring (17) is fixedly connected to the damping fine spring (22). The top surface of the damping support frame (9) is fixedly connected to the damping fine spring (22). The outer side of the damping sleeve (21) is slidably connected to the limiting protective slip ring (17). The top side of the damping sleeve (21) is fixedly connected to the limiting ring (23). The limiting ring (23) is located on the top of the limiting protective slip ring (17).

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