The invention relates to a pedal crank length virtual telescopic device and a bicycle, the pedal crank length virtual telescopic device comprises a fixed wheel and a winding wheel with the same diameter, and a transmission belt is wound between the fixed wheel and the winding wheel; the winding wheel is fixedly arranged on a winding wheel rotating shaft in a sleeving mode, the winding wheel rotating shaft is fixedly connected with a pedal auxiliary crank which is horizontally arranged, and a main crank is arranged between the fixed wheel and the winding wheel. The fixed wheel is sleeved on a main crank rotating shaft and is fixedly connected with a frame of the bicycle, and a bearing is arranged between the main crank rotating shaft and the fixed wheel, so that the pedal auxiliary crank can drive the winding wheel, the winding wheel rotating shaft and the main crank to rotate on a circular track taking the main crank rotating shaft as a reference. Under the condition that the solid length of the main crank is not increased, the auxiliary crank is additionally arranged, so that the length of the pedal crank which effectively works generates a virtual telescopic effect in the movement process.

    本申请涉及一种脚蹬曲柄长度虚拟可伸缩装置及自行车,其中脚蹬曲柄长度虚拟可伸缩装置包括直径相同的固定轮以及绕动轮,所述固定轮与所述绕动轮之间盘绕有传动带;所述绕动轮固定套装在绕动轮转轴上,所述绕动轮转轴固定连接有水平设置的脚蹬副曲柄,所述固定轮与所述绕动轮之间设置有主曲柄;所述固定轮套装在主曲柄转轴上并与自行车的车架固定连接,所述主曲柄转轴与所述固定轮之间设置有轴承,用以使所述脚蹬副曲柄能够带动所述绕动轮、所述绕动轮转轴以及所述主曲柄在以所述主曲柄转轴为基准的圆形轨迹上转动。本发明在不加长主曲柄实体长度的情况下,通过增加一个副曲柄使有效做工的脚蹬曲柄长度在运动过程中产生一种虚拟可伸缩的效果。


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    Title :

    Pedal crank length virtual telescopic device and bicycle


    Additional title:

    一种脚蹬曲柄长度虚拟可伸缩装置及自行车


    Contributors:
    LI SHENGLU (author) / LI SHUANGXIN (author)

    Publication date :

    2024-01-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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