双杠杆撬拔省力的后单轮驱动型三轮车
By employing a double-lever pry-and-pull transmission mechanism in the human-powered tricycle, a two-stage force amplification and symmetrical pedal arrangement design are achieved, solving the problems of limited force-saving effect and poor riding comfort in the transmission structure, thus improving driving efficiency and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING JIAOTONG UNIV
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-17
AI Technical Summary
The existing human-powered tricycle transmission structure has problems such as limited labor-saving effect and poor riding comfort. In particular, the transmission efficiency is low and it is easy to cause muscle fatigue under extreme gear ratios.
The system replaces the traditional sprocket and chain drive with a dual-lever prying transmission mechanism. Through the lever arm ratio design of lever A and lever B, it achieves two-stage force amplification. Combined with the symmetrically arranged pedal components, it conforms to the human body's natural force exertion habits and improves riding comfort.
It significantly improves drive efficiency, achieving a total effort-saving ratio far exceeding the limits of traditional chain drives, reducing muscle fatigue, and enhancing comfort and structural stability during long rides.
Smart Images
Figure CN224511370U_ABST