A new type of multi-rod power-saving bicycle
By improving the design of components such as the bicycle's mounting plate, positioning plate, pedals, and limit post, the problem of the bulky frame was solved, resulting in improved labor-saving effect and increased production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 王谷清
- Filing Date
- 2025-09-18
- Publication Date
- 2026-07-14
AI Technical Summary
The existing multi-pedal bicycle frame is too bulky, which makes production inconvenient and wastes too much material, and the riding effort-saving effect needs to be improved.
An improved design incorporates components such as a fixed disc, positioning plate, pedal, limit post, gear, and connecting rod. Through the cooperation of transmission components and limit grooves, the lever arm length is increased to improve the effort-saving effect of riding.
The simplified frame structure reduces material usage, improves effort-saving riding, and enhances production efficiency and riding comfort.
Smart Images

Figure CN224491389U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of labor-saving bicycle technology, and more specifically, it relates to a novel multi-pedal labor-saving bicycle. Background Technology
[0002] Bicycles have gained increasing attention due to their economy, convenience, flexibility, lack of pollution, and freedom of parking, and have become an indispensable means of transportation in people's daily lives.
[0003] A multi-pedal bicycle with a power-saving mechanism is disclosed in patent publication number CN217623959U. The bicycle includes a frame with a power-saving mechanism whose output end is connected to the bottom bracket. The power-saving mechanism includes a support bracket, comprising support plates located on both sides of the frame and connecting blocks mounted on the frame crossbar. The connecting blocks are connected to the top of the support plates on both sides. A through hole is provided at the bottom of the support plate, with its center on the same horizontal plane as the center of the bottom bracket. The through hole and the bottom bracket are at a certain distance, and the through hole is closer to the front wheel on the frame than the bottom bracket. A connecting rod is connected to the support plate through the through hole. The connecting rod includes a main shaft rotatably connected within the through hole. Through holes extend from both ends of the main shaft, with one end connected to a pedal rod and the other end connected to a pedal rod. A foot pedal is located on the side of the pedal rod away from the main shaft. A connecting rod is connected to the end of the pedal rod away from the main shaft, and the end of the connecting rod away from the pedal rod is connected to the bottom bracket.
[0004] The above-mentioned labor-saving bicycle simplifies the torque adjustment method in the existing technology and can improve the labor-saving effect of riding without replacing the flywheel or lengthening the connecting rod. However, the frame of this labor-saving bicycle is too bulky, which is inconvenient to produce and requires too much material.
[0005] Therefore, a new solution is needed to address this problem. Utility Model Content
[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a new type of multi-pedal effort-saving bicycle, which improves upon the existing effort-saving bicycle frame by removing the bulky frame to facilitate production, and enhances the effort-saving riding effect through the effort-saving components.
[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a novel multi-pedal labor-saving bicycle includes a frame, fixed posts are fixedly connected to both sides of the frame, and fixed discs are rotatably connected to both fixed posts. A chainring is rotatably connected to one fixed post between the frame and the adjacent fixed disc. The chainring is fixedly connected to the adjacent fixed disc. The fixed posts and fixed discs are provided with labor-saving components for improving the labor-saving effect of riding.
[0008] The present invention is further configured such that: the labor-saving component includes a positioning plate fixedly connected to the end of the fixed column away from the frame, a pedal rod rotatably connected to the positioning plate, a limiting post fixedly connected to the pedal rod, a positioning rod fixedly connected to the pedal rod, a pedal rod 2 fixedly connected to the fixed plate, and a limiting post 2 fixedly connected to the pedal rod 2. The pedal rod 1 is provided with a limiting groove 1 that allows adjacent limiting posts 2 to slide, and the pedal rod 2 is provided with a limiting groove 2 that allows adjacent limiting posts 1 to slide. The frame and the fixed column are provided with transmission components for transmitting pedaling power.
[0009] The present invention is further configured such that: the transmission component includes a gear 1 rotatably connected to a fixed column, a connecting rod rotatably connected to a frame, and a gear 2 fixedly connected to both ends of the connecting rod; the two gears 1 are respectively fixedly connected to the chainring and a fixed plate on the side away from the chainring; and the two gears 2 respectively mesh with the adjacent gear 1.
[0010] The present invention is further configured such that: the two sides of the limiting groove one are inclined at the end near the positioning rod, and the two sides of the limiting groove two are inclined at the end away from the fixing plate.
[0011] The present invention is further configured such that a pedal is rotatably connected to the positioning rod.
[0012] The present invention is further configured such that: the fixed plate, the toothed plate, and the first gear are all connected to the adjacent fixed column through bearings, and the connecting rod is connected to the frame through the second bearing.
[0013] In summary, this utility model has the following beneficial effects: it improves the existing labor-saving bicycle bracket by removing the bulky bracket to facilitate production, and the labor-saving effect of riding can be improved through the cooperation of the fixing plate, positioning plate, pedal one, limit post one, pedal two, limit post two, gear one, connecting rod, and gear two. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;
[0015] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;
[0016] Figure 3 This is a cross-sectional view of the present invention;
[0017] Figure 4 For the explosion of this utility model Figure 1 ;
[0018] Figure 5 This is a partial structural schematic diagram of the present invention;
[0019] Figure 6 For the explosion of this utility model Figure 2 ;
[0020] Figure 7 A partial structural cross-section of this utility model. Figure 1 ;
[0021] Figure 8 A partial structural cross-section of this utility model. Figure 2 .
[0022] In the diagram: 1. Frame; 2. Mounting post; 3. Mounting disc; 4. Chainring; 5. Positioning plate; 6. Pedal bar 1; 7. Limiting post 1; 8. Positioning rod; 9. Pedal bar 2; 10. Limiting post 2; 11. Limiting groove 1; 12. Limiting groove 2; 13. Gear 1; 14. Connecting rod; 15. Gear 2; 16. Pedal; 17. Bearing 1; 18. Bearing 2. Detailed Implementation
[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] A new type of multi-pedal bicycle that saves effort, such as Figures 1-8 As shown, the bicycle includes a frame 1, with fixed posts 2 fixedly connected to both sides of the frame 1. A fixed disc 3 is rotatably connected to each of the two fixed posts 2. A chainring 4 is rotatably connected to one of the fixed posts 2, positioned between the frame 1 and the adjacent fixed disc 3. The chainring 4 is fixedly connected to the adjacent fixed disc 3. The fixed posts 2 and fixed disc 3 are equipped with effort-saving components to enhance the riding experience. These components include a positioning plate 5 fixedly connected to the end of the fixed post 2 away from the frame 1, a pedal rod 6 rotatably connected to the positioning plate 5, a limiting post 7 fixedly connected to the pedal rod 6, a positioning rod 8 fixedly connected to the pedal rod 6, a pedal rod 9 fixedly connected to the fixed disc 3, and a pedal... The second limit post 10 is fixedly connected to the second rod 9. The first pedal 6 is provided with a limit groove 11 that allows the adjacent limit post 10 to slide. The second pedal 9 is provided with a limit groove 12 that allows the adjacent limit post 7 to slide. The frame 1 and the fixed post 2 are provided with a transmission component for transmitting pedaling power. The transmission component includes a gear 13 rotatably connected to the fixed post 2, a connecting rod 14 rotatably connected to the frame 1, and gears 15 fixedly connected to both ends of the connecting rod 14. The two gears 13 are fixedly connected to the chainring 4 and the fixed plate 3 on the side away from the chainring 4, respectively. The two gears 15 mesh with the adjacent gears 13.
[0025] like Figures 1-8As shown, before riding, first connect the chainring 4 to the freewheel on the frame 1 via the chain. Then, pedal the positioning bar 8 near the chainring 4. At this time, the pedal 6 will rotate around the positioning plate 5. When the pedal 6 rotates, the limiting post 7 will slide in the limiting groove 12 of the pedal 9. When the limiting post 7 disengages from the limiting groove 12, the limiting post 10 will simultaneously enter the limiting groove 11. Then, continue pedaling, and the limiting post 10 will disengage from the limiting groove 11, while the limiting post 7 will enter the limiting groove 12. In this way, the pedal 9 can drive the fixed chainring 3 and the chainring 4 to rotate. When the chainring 4 rotates, The bicycle is propelled forward, and at this time, gear 13, which is fixedly connected to chainring 4, will also rotate. Gear 13 will then drive gear 15, which meshes with it, to rotate. Gear 15 will then drive another gear 15, which in turn will drive gear 13, which meshes with it, to rotate. At this time, the other positioning plate 5 will also rotate, thus transmitting pedaling power. Similarly, pedal 16 will also make circular motion around positioning plate 5. When pedal 16 makes circular motion, the length of the lever arm will increase, thus increasing the torque when pedaling the pedal positioning rod 8 with the same force, making riding more effortless.
[0026] like Figures 1-8 As shown, when the two pedals 9 are perpendicular to the ground, both limiting posts 7 will be 1cm to 2cm from the opening of the limiting groove 12. When the positioning rod 8 is stepped on, one limiting post 7 will move towards the opening of the limiting groove 12 and disengage from the opening, while the other limiting post 7 will move into the limiting groove 12 and remain within it. It will then need to be stepped on again to disengage from the end of the limiting groove 12. This avoids both limiting posts 7 from disengaging from the limiting groove 12 at the same time, thus preventing the limiting post 10 from failing to enter the limiting groove 11 smoothly. The same principle applies when the limiting post 10 moves within the limiting groove 11, preventing the limiting post 7 from failing to enter the limiting groove 12 smoothly.
[0027] like Figures 3-8 As shown, the two sides of the limiting groove 11 are inclined at the end near the positioning rod 8, and the two sides of the limiting groove 2 are inclined at the end away from the fixed plate 3. This ensures that the limiting post 1 7 and the limiting post 2 10 can better disengage from or enter the limiting groove 11 and the limiting groove 2 12, making the operation smoother.
[0028] like Figures 1-3 As shown, a pedal 16 is rotatably connected to the positioning rod 8 to increase the pedaling contact area so that the rider can pedal with force.
[0029] like Figures 4-8As shown, the fixed disc 3, the chain 4, and the gear 13 are all connected to the adjacent fixed post 2 through the bearing 17. The connecting rod 14 is connected to the frame 1 through the bearing 18. The bearing 17 can ensure the smoothness of the rotation of the fixed disc 3, the chain 4, and the gear 13, and the bearing 18 can ensure the smoothness of the rotation of the connecting rod 14 and the gear 15.
[0030] Working principle: Before riding, connect the chainring 4 to the freewheel on the frame 1 via the chain. Then, pedal the pedal 16 closest to the chainring 4. This pedal 16 will rotate around the positioning plate 5. As the pedal 16 rotates, the limiting post 17 will slide within the limiting groove 12 of the pedal 29. When the limiting post 17 disengages from the limiting groove 12, the limiting post 20 will simultaneously enter the limiting groove 11. Continuing to pedal, the limiting post 20 will disengage from the limiting groove 11, and the limiting post 7 will enter the limiting groove 12. This allows the pedal 29 to drive the fixed chainring 3 and the chainring 4 to rotate. When the chainring 4 rotates... This propels the bicycle forward, and at the same time, gear 13, which is fixedly connected to chainring 4, will also rotate. Gear 13 will then drive gear 2, which meshes with it, to rotate. Gear 2, which in turn drives another gear 2, which rotates through connecting rod 14. Then, the other gear 2, which in turn drives gear 13, which meshes with it, to rotate. At this time, the other positioning plate 5 will also rotate, thus transmitting pedaling power. Similarly, the other pedal 1, which is also rotating, will move in a circular motion around positioning plate 5. When pedal 1, which is moving in a circular motion, will increase the length of the lever arm, thus increasing the torque when pedaling pedal 16 with the same force, making riding more effortless.
[0031] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A novel multi-pedal bicycle for saving effort, comprising a frame (1), characterized in that: The frame (1) is fixedly connected to two fixed posts (2) on both sides, and fixed plates (3) are rotatably connected to both fixed posts (2). A chainring (4) is rotatably connected between the frame (1) and the adjacent fixed plate (3) on one side of the fixed post (2). The chainring (4) is fixedly connected to the adjacent fixed plate (3). The fixed posts (2) and fixed plates (3) are provided with effort-saving components to improve the effort-saving effect of riding. The labor-saving component includes a positioning plate (5) fixedly connected to the end of the fixed column (2) away from the frame (1), a pedal rod (6) rotatably connected to the positioning plate (5), a limiting post (7) fixedly connected to the pedal rod (6), a positioning rod (8) fixedly connected to the pedal rod (6), a pedal rod (9) fixedly connected to the fixed plate (3), and a limiting post (10) fixedly connected to the pedal rod (9). The pedal rod (6) is provided with a limiting groove (11) for sliding adjacent limiting post (10), and the pedal rod (9) is provided with a limiting groove (12) for sliding adjacent limiting post (7). The frame (1) and the fixed column (2) are provided with transmission components for transmitting pedaling power. The transmission component includes a gear 1 (13) rotatably connected to a fixed column (2), a connecting rod (14) rotatably connected to a frame (1), and a gear 2 (15) fixedly connected to both ends of the connecting rod (14). The two gears 1 (13) are respectively fixedly connected to the chainring (4) and the fixed plate (3) on the side away from the chainring (4). The two gears 2 (15) mesh with the adjacent gears 1 (13).
2. The novel multi-pedal labor-saving bicycle according to claim 1, characterized in that: The first limiting groove (11) is inclined at one end near the positioning rod (8) on both sides, and the second limiting groove (12) is inclined at one end away from the fixed plate (3) on both sides.
3. The novel multi-pedal labor-saving bicycle according to claim 1, characterized in that: A pedal (16) is rotatably connected to the positioning rod (8).
4. A novel multi-pedal labor-saving bicycle according to claim 1, characterized in that: The fixed plate (3), the toothed plate (4) and the gear one (13) are all connected to the adjacent fixed column (2) through the bearing one (17), and the connecting rod (14) is connected to the frame (1) through the bearing two (18).