The invention discloses a labor-saving, simple and convenient three-wheel toy car for children. Pedals on the two sides utilize a ratchet wheel one-way force exerting mode, which is just like two labor-saving wrenches screwing the same screw. A pedaling mode of repeated circular motion is changed into a repeated motion mode of left and right feet mainly based on gravity. The pedals can be lengthened to a proper length, the strength required by pedaling is greatly reduced by further using a lever labor-saving mode, and springs are mounted at the bottoms of the pedals and automatically rebound to the original positions. A gear on a first gear shaft coaxial with the pedals is designed into a large gear structure and rotates forwards along with the movement of the pedals to drive a second gearshaft to reversely rotate. The second gear shaft is designed to be of a structure with a small gear in the middle and large gears on the two sides, so that a third gear shaft continues to be driven to move forwards. The middle gear of the third gear shaft is designed to be of a small gear structure, and two large-size wheels are installed on the two sides. Through the design, small-amplitude rotation of the pedals can be well amplified into multiple circles of large-amplitude rotation of the wheels.

    本发明公开了一种省力简便的儿童三轮玩具车:两边踏板利用棘轮单向使力方式,如同两根省力扳手拧同一根螺丝,将反复圆周运动的踩脚方式改成左右脚以重力为主的反复运动方式,并可将踏板加长至适当长度,进一步利用杠杆省力方式大大减少踩脚所需力度,踏板底部安装弹簧,自动回弹原位;与踏板同轴的第一根齿轮轴上的齿轮设计成大齿轮结构并伴随踏板运动进行正向转动,带动第二根齿轮轴进行反向转动,第二根齿轮轴设计成中间小齿轮两边大齿轮结构,从而继续带动第三根齿轮轴正向运动,第三根齿轮轴中间齿轮设计成小齿轮结构,两边装上两只大尺寸轮子,这样设计可以很好的将踏板小幅度转动扩增成轮子数圈的大幅度转动。


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    Title :

    Labor-saving, simple and convenient three-wheel toy car for children


    Additional title:

    一种省力简便的儿童三轮玩具车


    Contributors:
    MA BENGUANG (author)

    Publication date :

    2020-04-10


    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 / B62K Fahrräder , CYCLES



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