The embodiment of the invention discloses a chainless bicycle which comprises a bicycle frame, a front wheel, a rear wheel, fixing devices, flywheel gears, a speed change reversing gear set, swing arms, a traction rope and a guide wheel, the number of the fixing devices, the number of the flywheel gears and the number of the speed change reversing gear set are two, the swing arms are symmetricallyarranged on the two sides of the rear wheel, and the flywheel gears are fixed to a shaft of the rear wheel. The fixing device is located on the outer side of the flywheel gear, one end of the fixingdevice is arranged on a shaft of the rear wheel in a sleeving mode and fixed to a frame of the rear wheel, the other end of the fixing device is located between a rear wheel shaft and the pedal, the variable-speed reversing gear set and the swing arm are both installed on the fixing device, and a gear is arranged at one end of the swing arm and meshed with the variable-speed reversing gear set. Pedals are installed at the other ends of the swing arms, traction ropes are connected to the pedal sides of the two swing arms and arranged on guide wheels in a sleeving mode, and the guide wheels areinstalled on the frame. A chain is not needed in the part structure, the defects of an existing chain bicycle are overcome, and meanwhile riding safety is guaranteed.
本发明实施例公开一种无链条自行车,包括车架、前轮和后轮、固定装置、飞轮齿轮、变速换向齿轮组、摆臂、牵引绳和导轮,固定装置、飞轮齿轮、变速换向齿轮组、摆臂均设有2个且对称设置在后轮两侧,飞轮齿轮固定在后轮的轴上,固定装置位于飞轮齿轮的外侧,固定装置的一端套在后轮的轴上且固定于后轮的车架上,固定装置的另一端位于后轮轴与踏板之间,变速换向齿轮组和摆臂均安装在固定装置上,摆臂的一端设有齿轮,齿轮与变速换向齿轮组啮合,摆臂的另一端安装踏板,两个摆臂的踏板侧连接有牵引绳,牵引绳套在导轮上,导轮安装在车架上。本发明零件结构中不需要链条,解决了现有链条自行车的缺点,同时保证了骑行安全。
Chainless bicycle
一种无链条自行车
2021-01-01
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |