The invention discloses a multi-speed transmission system on a bicycle, which comprises a main frame, a first telescopic lower frame, a second telescopic lower frame, a wheel assembly, a boosting assembly, a pedal assembly and a transmission assembly, one end of the main frame is provided with a handlebar, and the other end of the main frame is provided with a rear seat; the second telescopic lower frame is movably inserted into the end, close to the handlebar, of the main frame in a penetrating mode. The system has the advantages that a transmission rod and a connecting structure are used for replacing chain transmission, riding is achieved, multi-stage speed changing can be conducted, the stability of multi-stage speed changing is guaranteed, when a short slope or an uneven road surface is met, the vehicle can be boosted through the weight of the main frame and the weight of a rider, and the physical strength of the rider is saved. The height of the pedals can be adjusted to adjust the height of the pedals in real time according to the leg length of a rider so as to adjust the pedaling strength, the segmented tires are used, the whole tires do not need to be replaced when the tires are replaced, damping can be conducted from the tires and the whole bicycle, and the riding comfort is improved.
本发明公开了一种自行车上的多级变速传动系统,包括有总车架、第一伸缩下架、第二伸缩下架、车轮组件、助推组件、脚蹬组件和传动组件,所述总车架的一端安装有车把且另一端安装有后座,所述总车架靠近车把的一端内活动穿插有第二伸缩下架。有益效果在于:本装置首先利用传动杆及相连结构代替链条传动,实现骑车,并且可进行多级变速,并保证多级变速的稳定性,并且在遇到短坡或凹凸不平的路面时,可利用总车架和骑行者的重量对车辆进行助推,节省骑行者的体力,并且可调节脚蹬的高度来根据骑行者的腿长实时调节脚蹬高度来蹬车力度,并且使用成段的车胎,更换车胎时不需要整个车胎更换,并且可从车胎和整车进行缓震,提高骑行舒适度。
Multi-speed transmission system on bicycle
一种自行车上的多级变速传动系统
2022-01-11
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / B60B VEHICLE WHEELS , Räder für Fahrzeuge / B60C VEHICLE TYRES , Fahrzeugreifen / B62L BRAKES SPECIALLY ADAPTED FOR CYCLES , Bremsen, besonders für Fahrräder oder Motorräder ausgebildet |
Infinitely variable speed hydraulic transmission bicycle
European Patent Office | 2015
|Infinitely variable speed hydraulic transmission bicycle
European Patent Office | 2015
|