The invention provides a novel electric power-assisted bicycle which comprises a bicycle frame, a middle shaft penetrates through a five-way joint at the bottom of the bicycle frame, two ends of the middle shaft are respectively fastened with a group of oppositely arranged cranks through screw assemblies, the other ends of the cranks are fastened with pedals through bolts, and a crankset is fixed between one end of the middle shaft and the cranks. The novel electric power-assisted bicycle is characterized in that a detachable driving unit is installed on the frame in an externally-hung mode, the driving unit is in transmission connection with the middle shaft in the five-way joint through a transmission hole drilled in the frame, and compared with a traditional electric power-assisted bicycle, the driving unit is fixedly installed on the frame in an externally-hung mode and stretches into the five-way joint through the transmission hole drilled in the frame to be in transmission connection with the middle shaft. According to the bicycle, the driving unit can be quickly detached at any time, the bicycle can be converted to be ridden through traditional manpower as long as the driving unit and the auxiliary power source are detached, negative effects on riding experience are avoided, and the bicycle has good development prospects.
本发明提供了一种新型电助力自行车,包括车架,车架底部的五通内贯穿有中轴,中轴的两端分别通过螺丝组件紧固有一组对向设置的曲柄,曲柄的另一端通过螺栓紧固有脚蹬,中轴的其中一端与曲柄与之间固定有牙盘,其特征在于,车架上外挂安装有可拆卸的驱动单元,驱动单元通过车架上钻设的传动孔与五通内的中轴传动连接,与传统电助力自行车相比,驱动单元通过外挂的方式固定安装在车架上,通过车架上钻设的传动孔探入五通内与中轴传动连接,可以随时对驱动单元进行快速的拆卸,只要将驱动单元与辅助动力源进行拆除就能转换为传统人力骑行自行车,且不会带来骑行体验的负面影响,具有良好的发展前景。
Novel electric power-assisted bicycle
一种新型电助力自行车
10.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
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