Power generation structure for bicycle pedal

Abstract

The utility model relates to the technical field of fitness equipment, in particular to a power generation structure for a bicycle pedal, which comprises an axis rod body and a power generation component sleeved on the axis rod body, and the power generation component comprises a gear set sleeved on the axis rod body, a driving disc and a flywheel disc; the flywheel disc comprises a shell, a magnetic part and a stator unit used in cooperation with the magnetic part are fixed to the inner circumference of an outer ring of the shell, one end of an axis rod body is fixed to a driving disc, the driving disc is connected with a gear set in a matched mode, and the gear set is connected with a shell of the flywheel disc. The axis rod body is used for being connected to a pedal of an external bicycle, the gear set or / and the shell is / are rotationally arranged on a frame of the external bicycle, the pedal drives the axis rod body to drive the driving disc to rotate, the driving disc drives the gear set to rotate, and when the gear set rotates, the shell of the flywheel disc is driven by the driving disc to rotate. The magnetic piece on the shell of the flywheel disc rotates relative to the stator unit to generate electricity.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, and in particular discloses a power generation structure for bicycle pedals. Background Art

[0002] As a device that combines exercise, fitness, and entertainment, pedal-assisted fitness bikes are popular among fitness enthusiasts. Currently, the rotating disc on the market is typically mounted on the bike frame via a rotating shaft, while the inertia wheel is mounted on the frame via another rotating shaft. Because the rotating disc and inertia wheel are mounted on the frame separately via two rotating shafts, the bike's core components (including the power transmission mechanism) are bulky, taking up a lot of space. Furthermore, assembly is more difficult (assembly requires consideration of the fit between the inertia wheel and the rotating disc, as well as belt adjustment). This increases the cost of the bike and impacts its competitiveness. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a power generation structure for bicycle pedals.

[0004] To achieve the above-mentioned purpose, the utility model provides a power generation structure for bicycle pedals, including an axial rod body, a power generation assembly sleeved on the axial rod body, the power generation assembly including a gear set sleeved on the axial rod body, a drive disc and a flywheel disc; the flywheel disc includes a shell, a magnetic part fixed on the inner circumference of the outer ring of the shell, and a stator unit used in conjunction with the magnetic part, one end of the axial rod body is fixed to the drive disc, the drive disc is matched with the gear set, and the gear set is connected to the shell of the flywheel disc; the axial rod body is used to connect to the external bicycle pedal, the gear set and / or the shell are used to rotate on the external bicycle frame, the pedal drives the axial rod body to drive the drive disc to rotate, the drive disc drives the gear set to rotate, and when the gear set rotates, the shell of the flywheel disc is driven to rotate via the drive disc, and the magnetic part on the shell of the flywheel disc rotates relative to the stator unit to generate electricity.

[0005] When a rider pedals, the pedals transmit power to the drive disc via the axle. As the drive disc rotates, it transmits power to the gear set through its specific design (such as meshing and friction with the gear set). The gear set then changes speed or transmits power according to the design, ultimately transmitting the power to the flywheel housing. As the flywheel housing rotates, the magnetic components attached to it rotate relative to the stator unit. This relative motion causes a change in the magnetic field, which in turn generates an induced current in the stator unit, thus generating electricity.

[0006] The gear set includes a ring with an internal gear ring, multiple planetary guide gears that mesh and rotate with the ring with the internal gear ring, and a central gear that meshes and rotates with the planetary guide gears. The multiple planetary guide gears are arranged around the central gear, a shaft body is mounted on the central gear, a drive disc is mounted in conjunction with the multiple planetary guide gears, and the ring is mounted on the external bicycle frame. The power generation structure for the bicycle pedal also includes an overrunning clutch mounted on the shaft body. The drive disc housing has a retaining groove recessed inwardly, and the overrunning clutch is mounted in the retaining groove on the drive disc and rotates in conjunction with the shaft body.

[0007] The overrunning clutch uses a wedge-type overrunning clutch. When tested under the same no-load conditions, the no-load friction torque of the wedge-type overrunning clutch is 10gf.cm, and the no-load friction torque of the roller one-way overrunning clutch is 22gf.cm. Smaller no-load friction torque can effectively reduce the energy loss of electric vehicles and increase the cruising range of electric vehicles. The wedge-type overrunning clutch used in the utility model makes the entire power generation process more efficient and reliable. The rider can power the system by pedaling, and the overrunning clutch ensures that power is transferred to the generator when needed and disconnected when not needed. This not only improves the energy conversion efficiency, but also extends the service life of the equipment. In addition, the self-locking feature of the overrunning clutch can also prevent the generator from generating resistance to the rider when pedaling stops, thereby improving the comfort and safety of fitness.

[0008] When the rider pedals and the drive disc rotates the outer ring clockwise (or in the set direction), the wedges are pushed toward the inner ring by the spring. However, due to their tilt angle and relative motion, the wedges "climb" and form close contact between the outer and inner rings, allowing them to rotate synchronously. This allows power to be transmitted to the generator through the shaft. If the drive disc stops rotating or rotates counterclockwise (i.e., reverse idling), the wedges are no longer subject to the "climbing" force and instead return to their original position under the action of the spring, allowing the inner ring (i.e., the shaft and generator) to rotate freely or stop relative to the outer ring. This prevents the generator from continuing to rotate when not needed, avoiding energy loss and mechanical wear.

[0009] The top plane of the flywheel shell is concavely provided with an annular groove. The central gear includes a gear body and an annular base integrally formed with the gear body. The annular groove accommodates a bearing member. The shell is rotatably sleeved on the outer side of the shaft rod body via the bearing member. The annular base of the central gear contacts the side of the rolling bearing in the shell.

[0010] The planetary gear system achieves efficient power transmission through the dual meshing of multiple planetary gears with the central gear and the inner ring gear. This design minimizes energy loss and improves the efficiency of the entire transmission system. When the rider pedals, power is transmitted to the central gear through the axle shaft. As the central gear rotates, it drives the meshed planetary guide gears to orbit around it and rotate on their own. The planetary guide gears then mesh with the annular ring with the inner ring gear, further transmitting power and changing speed. At the same time, the flywheel housing is mounted on the outside of the axle shaft via a bearing assembly and rotates with it. Because the annular base of the central gear contacts the side of the rolling bearing in the housing, this design ensures a stable relative position between the flywheel and central gear and efficient power transmission.

[0011] The drive disc is provided with a housing and a pressure plate on either side thereof. The housing and pressure plate each have corresponding first and second through-holes, which accommodate a rod that extends through the drive disc and rotatably engages with the planetary guide gear. The gear assembly further includes a first rod and a second rod. The first rod has a boss protruding from the main body of the first rod. The first rod extends through the first through-holes in the housing and pressure plate and is mounted and engaged with the rotating bearing of the planetary guide gear. The pressure plate and the rotating bearing jointly clamp the boss, which is used to block the rotating bearing on the planetary guide gear.

[0012] The first and second rods penetrate through holes in the housing and pressure plate and mate with the planetary guide gear's rotating bearings, forming a stable support structure. This design significantly enhances the stability of the gear train under high-speed rotation and high-load conditions. The rods tightly mate with the planetary guide gear's rotating bearings, reducing play and wobble during transmission, thereby improving transmission precision and reliability. This helps ensure accurate and consistent power transmission. The boss on the first rod is designed to stop the planetary guide gear's rotating bearings, preventing them from loosening or falling off during high-speed rotation. This further enhances the safety and reliability of the system.

[0013] A stopper is provided at one end of the second rod, which extends through corresponding second through-holes in the housing and pressure plate to secure the housing and pressure plate. The precise fit between the stopper and the second through-hole ensures proper positioning and fastening of the housing and pressure plate during assembly. This high-precision assembly method helps reduce performance issues caused by improper installation, such as poor transmission and increased energy loss.

[0014] The power generation structure for bicycle pedals also includes a front end cover, a rear end cover and multiple sets of bearing parts. The front end cover and the rear end cover are installed on the bicycle frame. The power generation component is located between the front end cover and the rear end cover. The front end cover and the rear end cover are respectively mounted on multiple bearing parts and are rotatably connected to the axial rod body.

[0015] The front and rear covers serve as the outer protective structure of the power generation assembly, providing support for the internal generator mechanism while preventing the intrusion of external impurities and dust. This helps keep the generator assembly clean and in proper working order. Furthermore, the front and rear covers, mounted on the bicycle frame, ensure the stability and reliability of the entire generator structure. Their secure connection to the frame prevents shaking or falling off during riding. The multiple bearings ensure smoother and more efficient rotation of the axle shaft. This feature helps more effectively transmit the rider's pedaling power to the generator assembly, thereby improving power generation efficiency. The bearings also protect the axle shaft and other key components of the generator mechanism. During riding, the axle shaft may be subjected to impact or vibration due to uneven roads or unsteady rider movements. The bearings' cushioning and vibration-damping properties reduce the impact of these shocks on the axle shaft and generator mechanism, thereby extending their service life.

[0016] The power generation structure for bicycle pedals also includes a loading frame having a base and two supporting portions disposed on the base. The two supporting portions are arranged in parallel, with a front cover and a rear cover respectively disposed on the two supporting portions. The power generation assembly is located between the two supporting portions. The base is configured to be removably connected to the bicycle frame. Threaded holes are provided in both the front cover and the rear cover, and the external bicycle frame is fixedly connected to the power generation structure via the threaded holes in the front cover and the rear cover.

[0017] The base of the loading frame is designed to be removably attached to the bicycle frame. This design not only ensures a secure connection between the power generation assembly and the bicycle, but also facilitates quick and easy installation and removal. Furthermore, as the foundation of the entire loading frame, the base bears the entire weight of the power generation assembly, enhancing structural stability. Threaded holes in the front and rear covers allow the external bicycle frame to be easily secured to the power generation structure using bolts and other fasteners. This design simplifies the installation process, reduces difficulty, and improves efficiency.

[0018] The outer side of the housing is equipped with a weighted wheel for fitness training. The weighted wheel increases the resistance during riding, forcing the rider to exert more force to overcome this resistance. This increased resistance helps to strengthen the rider's lower limb muscles, especially the thigh and calf muscles, thereby improving fitness results.

[0019] This new outboard motor design is unique in that its outer rotor incorporates a counterweight pulley. Compared to traditional inboard motors, this design significantly simplifies the structure, effectively reducing manufacturing costs. Furthermore, the system cleverly integrates a reducer with the outboard motor. The reducer's high reduction ratio significantly amplifies the motor's output power. This strategy allows the system to utilize a lower-power motor while meeting the same power requirements, further reducing overall manufacturing costs.

[0020] Beneficial effects of the present invention: The present invention not only makes the fitness bike lighter, but also reduces energy loss during the transmission process by installing the power generation component and the rotating component in one piece. A planetary gear set is used as the rotating mechanism, and the engagement of multiple planetary gears with the central gear and the inner ring gear realizes efficient transmission and deceleration of power. This design not only improves the transmission efficiency (up to 90% or more), but also reduces energy loss and friction and wear. The housing of the flywheel is rotatably sleeved on the outside of the shaft rod body via the bearing, and the annular base of the central gear contacts the side of the rolling bearing in the housing. The central gear and the housing of the flywheel are rotatably arranged, and the magnetic part on the housing of the flywheel rotates relative to the stator unit to generate electricity and power the external display screen. When the generator set generates electricity, a sense of frustration will be generated during the rotation of the magnetic part on the housing relative to the stator unit. The design of the reduction gear set can reduce the sense of frustration by deceleration, making the power generation process smoother and improving the fitness user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is an exploded schematic diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the drive disc, gear set and flywheel disc of the utility model;

[0024] Figure 4 This is an exploded schematic diagram of the drive disc and gear set of the present invention;

[0025] Figure 5 This is an exploded schematic diagram of the central gear and flywheel of the present invention;

[0026] Figure 6 This is a schematic structural diagram of the first rod body of the present invention;

[0027] Figure 7 This is a schematic structural diagram of the flywheel disc of the present utility model;

[0028] Figure 8 It is a structural schematic diagram of the axial rod body of the present utility model.

[0029] Reference numerals include:

[0030] 1. Axis rod body; 2. Power generation assembly; 3. Counterweight wheel; 4. Gear set; 5. Flywheel disc; 6. Ring; 7. Planetary guide gear; 8. Central gear; 9. Drive disc; 11. Annular groove; 12. Gear body; 13. Annular base; 15. Housing; 16. Pressure plate; 17. First through hole; 18. Second through hole; 19. First rod body; 21. Second rod body; 22. Boss; 24. Front cover; 25. Rear cover; 26. Bearing member; 27. Magnetic member; 28. Stator unit; 31. Mounting hole; 100. Housing; 32. Loading frame; 33. Base; 34. Bearing member; 40. Overrunning clutch. DETAILED DESCRIPTION

[0031] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0032] See also Figures 1 to 8 As shown, the utility model is a power generation structure for bicycle pedals, comprising an axis rod body 1, a power generation assembly 2 sleeved on the axis rod body 1, the power generation assembly 2 comprising a gear set 4 sleeved on the axis rod body 1, a drive disc 9 and a flywheel 5; the flywheel 5 comprises a housing 100, a magnetic member 27 fixed on the inner circumference of the outer ring of the housing 100, and a stator unit 28 used in conjunction with the magnetic member 27, one end of the axis rod body 1 is fixed to the drive disc 9, and the drive disc 9 is connected to the gear set 4. The gear set 4 is connected to the housing 100 of the flywheel 5 in a matching connection; the axial rod body 1 is used to connect to the pedal of an external bicycle, and the gear set 4 and / or the housing 100 are used to rotate on the frame of the external bicycle. The pedal drives the axial rod body 1 to drive the driving disc 9 to rotate, and the driving disc 9 drives the gear set 4 to rotate. When the gear set 4 rotates, it drives the housing 100 of the flywheel 5 to rotate via the driving disc 9. The magnetic part 27 on the housing 100 of the flywheel 5 rotates relative to the stator unit 28 to generate electricity.

[0033] When a rider pedals, the pedals transmit power to the drive disc 9 via the shaft 1. As the drive disc 9 rotates, it transmits power to the gear set 4 through its specific design (e.g., meshing and friction with the gear set 4). The gear set 4 then changes speed or transmits power according to its design, ultimately transmitting the power to the housing 100 of the flywheel 5. As the housing 100 of the flywheel 5 rotates, the magnetic member 27 fixed thereto rotates relative to the stator unit 28. This relative motion causes a change in the magnetic field, thereby generating an induced current in the stator unit 28, thereby generating electricity.

[0034] The gear set 4 includes a ring 6 with an internal gear ring, multiple planetary guide gears 7 that mesh and rotate with the ring 6, and a central gear 8 that meshes and rotates with the planetary guide gears 7. The multiple planetary guide gears 7 are arranged around the central gear 8, the shaft body 1 is mounted on the central gear 8, the drive disc 9 is mounted in conjunction with the multiple planetary guide gears 7, and the ring 6 is mounted on the external bicycle frame. The power generation structure for bicycle pedals also includes an overrunning clutch 40 mounted on the shaft body 1. The outer shell 15 of the drive disc 9 has a retaining groove recessed inwardly. The overrunning clutch 40 is received in the retaining groove on the drive disc 9 and rotates in conjunction with the shaft body 1.

[0035] The top plane of the housing 100 of the flywheel 5 is concavely provided with an annular groove 11. The central gear 8 includes a gear body 12 and an annular base 13 integrally formed with the gear body 12. The annular groove 11 accommodates a bearing member 26. The housing 100 is rotatably sleeved on the outer side of the shaft body 1 via the bearing member 26. The annular base 13 of the central gear 8 contacts the side of the rolling bearing in the housing 100.

[0036] The planetary gear system achieves efficient power transmission through the dual meshing of multiple planetary gears with the center gear 8 and the inner ring gear. This design results in relatively small energy losses and improves the efficiency of the entire transmission system. When the rider pedals the bicycle, power is transmitted to the center gear 8 through the axis rod body 1. When the center gear 8 rotates, it drives the planetary guide gear 7 that is meshed with it to revolve around it and rotate on its own. The planetary guide gear 7 then meshes with the ring 6 with the inner ring gear to achieve further power transmission and speed change. At the same time, the flywheel 5 housing 100 is mounted on the outside of the axis rod body 1 through the bearing member 26 and rotates with it. Since the annular base 13 of the center gear 8 contacts the side of the rolling bearing in the housing 100, this design ensures that the relative position between the flywheel 5 and the center gear 8 is stable and the power transmission is efficient.

[0037] The drive disc 9 is provided with a housing 15 and a pressure plate 16 for use with the housing 15 on both sides. The housing 15 and the pressure plate 16 are each provided with a corresponding first through-hole 17 and second through-hole 18, which accommodate a rod that passes through the drive disc 9 and rotatably engages with the planetary guide gear 7. The gear assembly 4 also includes a first rod 19 and a second rod 21. The first rod 19 is provided with a boss 22 that protrudes from the main body of the first rod 19. The first rod 19 passes through the first through-hole 17 in the housing 15 and the pressure plate 16 and is mounted and engaged with the rotating bearing of the planetary guide gear 7. The pressure plate 16 and the rotating bearing jointly clamp the boss 22, which is used to block the rotating bearing on the planetary guide gear 7.

[0038] The first rod 19 and the second rod 21 penetrate through holes in the housing 15 and the pressure plate 16 and fit in with the rotating bearings of the planetary guide gears 7, forming a stable support structure. This design significantly enhances the stability of the gear set 4 under high-speed rotation and high-load conditions. The rods fit tightly with the rotating bearings of the planetary guide gears 7, reducing play and vibration during transmission, thereby improving transmission precision and reliability. This helps ensure the accuracy and consistency of power transmission. The boss 22 of the first rod 19 is designed to block the rotating bearings of the planetary guide gears 7, preventing them from loosening or falling off during high-speed rotation. This further enhances the safety and reliability of the system.

[0039] A stopper is provided at one end of the second rod 21. The second rod 21 extends through corresponding second through-holes 18 in the housing 15 and the pressure plate 16, securing the housing 15 to the pressure plate 16. The precise fit between the stopper and the second through-hole 18 ensures proper positioning and fastening of the housing 15 and the pressure plate 16 during assembly. This high-precision assembly method helps reduce performance issues caused by improper installation, such as poor transmission and increased energy loss.

[0040] The power generation structure for bicycle pedals also includes a front end cover 24, a rear end cover 25 and multiple sets of bearing parts 26. The front end cover 24 and the rear end cover 25 are installed on the bicycle frame, and the power generation component 2 is located between the front end cover 24 and the rear end cover 25. The front end cover 24 and the rear end cover 25 are respectively mounted on multiple bearing parts 26 and rotated in conjunction with the axis rod body 1.

[0041] The front and rear covers 24 and 25 serve as the outer protective structure of the power generation assembly 2, providing support for the internal generator mechanism while also preventing the intrusion of external impurities and dust. This helps keep the generator assembly 2 clean and in proper working order. Furthermore, by being mounted on the bicycle frame, the front and rear covers 24 and 25 ensure the stability and reliability of the entire power generation structure. Their secure connection to the frame prevents any shaking or falling off during riding. The provision of multiple sets of bearings 26 ensures smoother and more efficient rotation of the axle rod 1. This feature helps more effectively transmit the rider's pedaling power to the generator assembly 2, thereby improving power generation efficiency. The bearings 26 also protect the axle rod 1 and other key components of the generator mechanism. During riding, the axle rod 1 may be subjected to impact or vibration due to uneven road conditions or the rider's unsteady movements. The cushioning and vibration-damping effects of the bearings 26 reduce the impact of these impacts on the axle rod 1 and the generator mechanism, thereby extending their service life.

[0042] The power generation structure for bicycle pedals also includes a loading frame 32 having a base 33 and two supporting portions 34 disposed on the base 33. The two supporting portions 34 are arranged in parallel, with the front cover 24 and the rear cover 25 respectively disposed on the two supporting portions 34. The power generation assembly 2 is located between the two supporting portions 34. The base 33 is configured for detachable connection to the bicycle frame. Both the front cover 24 and the rear cover 25 are provided with threaded holes, and the external bicycle frame is fixedly connected to the power generation structure via the threaded holes in the front cover 24 and the rear cover 25.

[0043] The base 33 of the loading frame 32 is designed to be removably connected to the bicycle frame. This design not only ensures a secure connection between the power generation assembly 2 and the bicycle, but also facilitates quick and easy installation and removal of the power generation assembly 2. Furthermore, as the foundation of the entire loading frame 32, the base 33 bears the entire weight of the power generation assembly 2, enhancing the structural stability. Threaded holes are provided in the front and rear covers 24 and 25, allowing the external bicycle frame to be easily secured to the power generation structure using fasteners such as bolts. This design simplifies the installation process, reduces difficulty, and improves installation efficiency.

[0044] The outer side of the housing 100 is provided with a weighted wheel 3 for fitness training. The weighted wheel 3 is used to increase resistance, thereby helping the exerciser to better stimulate muscle strength. The presence of the weighted wheel 3 increases the resistance during riding, requiring the rider to exert more force to overcome this resistance. This increased resistance helps to strengthen the rider's lower limb muscles, particularly the thigh and calf muscles, thereby improving fitness results.

[0045] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A power generation structure for bicycle pedals, characterized by: The invention relates to a power generation device comprising an axial rod body (1), a power generation assembly (2) sleeved on the axial rod body (1), the power generation assembly (2) comprising a gear set (4) sleeved on the axial rod body (1), a driving disc (9) and a flywheel disc (5); the flywheel disc (5) comprising a housing (100), a magnetic member (27) fixed on the inner circumference of the outer ring of the housing (100), and a stator unit (28) used in conjunction with the magnetic member (27); one end of the axial rod body (1) is fixed to the driving disc (9), the driving disc (9) is connected in conjunction with the gear set (4), and the gear set (4) is connected to the stator unit (28). The flywheel disc (5) is connected to the housing (100); the axial rod body (1) is used to connect to the pedals of an external bicycle, the gear set (4) and / or the housing (100) are used to rotate on the bicycle frame arranged on the outside, the pedal drives the axial rod body (1) to drive the driving disc (9) to rotate, the driving disc (9) drives the gear set (4) to rotate, when the gear set (4) rotates, the housing (100) of the flywheel disc (5) is driven to rotate via the driving disc (9), and the magnetic member (27) on the housing (100) of the flywheel disc (5) rotates relative to the stator unit (28) to generate electricity.

2. The power generation structure for bicycle pedals according to claim 1, characterized in that: The gear set (4) comprises a ring (6) with an inner gear ring, a plurality of planetary guide gears (7) meshing and rotating with the ring (6) with the inner gear ring, and a central gear (8) meshing and rotating with the planetary guide gears (7); the plurality of planetary guide gears (7) are arranged around the central gear (8); the shaft body (1) is arranged on the central gear (8); the driving disc (9) is arranged in cooperation with the plurality of planetary guide gears (7); and the ring (6) is arranged on an external bicycle frame.

3. The power generation structure for bicycle pedals according to claim 2, characterized in that: The top plane of the housing (100) of the flywheel (5) is inwardly concavely provided with an annular groove (11); the central gear (8) comprises a gear body (12) and an annular base (13) integrally formed with the gear body (12); the annular groove (11) accommodates a rolling bearing; the housing (100) is rotatably sleeved on the outer side of the shaft body (1) via the rolling bearing; the annular base (13) of the central gear (8) contacts the side surface of the rolling bearing in the housing (100).

4. The power generation structure for bicycle pedals according to claim 2, characterized in that: The left and right sides of the driving disc (9) are provided with a shell (15) and a pressure plate (16) used in conjunction with the shell (15); the shell (15) and the pressure plate (16) are both provided with a corresponding first through hole (17) and a second through hole (18); the through holes accommodate a rod body that passes through the driving disc (9) and rotates in conjunction with the planetary guide gear (7); the power generation structure for bicycle pedals also includes an overrunning clutch (40) sleeved on the axial rod body (1); the driving disc (9) shell (15) is provided with a limiting groove inwardly, and the overrunning clutch (40) is accommodated in the limiting groove on the driving disc (9) and is rotated in conjunction with the axial rod body (1).

5. The power generation structure for bicycle pedals according to claim 4, characterized in that: The gear set (4) further comprises a first rod (19) and a second rod (21). The first rod (19) is provided with a boss (22) protruding from the main body of the first rod (19). The first rod (19) passes through the first through hole (17) on the housing (15) and the pressure plate (16) and is mounted and matched with the rotating bearing of the planetary guide gear (7). The pressure plate (16) and the rotating bearing jointly clamp the boss (22). The boss (22) is used to block the rotating bearing on the planetary guide gear (7).

6. The power generation structure for bicycle pedals according to claim 5, characterized in that: A limiting block is provided at one end of the second rod body (21), and the second rod body (21) passes through the second through hole (18) corresponding to the housing (15) and the pressing plate (16) to fix the housing (15) and the pressing plate (16).

7. The power generation structure for bicycle pedals according to claim 1, characterized in that: The power generation structure for bicycle pedals further comprises a front end cover (24), a rear end cover (25) and a plurality of bearing members (26); the front end cover (24) and the rear end cover (25) are mounted on a bicycle frame; the power generation assembly (2) is located between the front end cover (24) and the rear end cover (25); the front end cover (24) and the rear end cover (25) are respectively sleeved on the plurality of bearing members (26) and are rotatably connected to the axis rod body (1).

8. The power generation structure for bicycle pedals according to claim 7, characterized in that: The power generation structure for bicycle pedals further comprises a loading frame (32), the loading frame (32) comprising a base (33) and two bearing parts (34) arranged on the base (33), the two bearing parts (34) being arranged in parallel, the front end cover (24) and the rear end cover (25) being respectively arranged on the two bearing parts (34), the power generation assembly (2) being located between the two bearing parts (34), and the base (33) being used for being detachably connected to a bicycle frame.

9. The power generation structure for bicycle pedals according to claim 7, characterized in that: The front end cover (24) and the rear end cover (25) are both provided with threaded holes, and the external single vehicle frame is fixedly connected to the power generation structure via the threaded holes on the front end cover (24) and the rear end cover (25).

10. The power generation structure for bicycle pedals according to claim 1, characterized in that: The outer side of the housing (100) is provided with a weight wheel (3) for fitness exercise, and the weight wheel (3) is used to increase resistance so as to better help the exerciser stimulate muscle strength.

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