The invention relates to the field of universal wheels, in particular to a shopping cart universal wheel with a small turning radius. The invention aims to solve technical problems that the direction of a universal wheel of an existing shopping cart is not easy to control, the universal wheel is not flexible enough and does not have a parking function. In order to solve the technical problem, the shopping cart universal wheel with the small turning radius is provided and composed of a buckling mechanism and a parking mechanism, rotation of a clamping block is controlled through the buckling mechanism so that the universal wheel and a directional wheel can be switched back and forth, and a shopping cart can be more flexible; a second magnet is driven by a second speed reduction stepping motor to rotate, and the principle that opposite poles of the magnets attract each other and like poles repel each other is matched, so that a spring column can be automatically separated from a clamping groove when needed, the clamping block restores to a rotating state, and a directional wheel is switched back to a universal wheel; by means of the transmission principle of the worm wheel and the worm, the clamping plate can be rotated down to clamp the wheel, the wheel is prevented from continuing to move forwards or backwards, and compared with the prior art, the shopping cart universal wheel is more user-friendly and higher in practicability.

    本发明涉及万向轮领域,尤其涉及一种转弯半径小的购物车万向轮。本发明要解决的技术问题是现有购物车用万向轮不易控制方向,不够灵活,且不具备停车的功能。为了解决上述技术问题,本发明提供了一种转弯半径小的购物车万向轮,本发明由卡扣机构和停车机构组成,通过卡扣机构来控制卡块的转动,来使万向轮和定向轮的来回切换,使购物车更加灵活;通过第二减速步进电机带转第二磁铁,再配合磁铁异性相吸,同性相斥的原理,便可以自主使弹簧柱在需要时脱离卡槽,从而使卡块恢复转动状态,定向轮切换回万向轮;利用蜗轮蜗杆的传动原理,能转下卡板,从而卡住车轮,防止车轮继续向前或向后前行,相较于现有技术,本发明更加人性化,实用性更强。


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    Titel :

    Shopping cart universal wheel with small turning radius


    Weitere Titelangaben:

    一种转弯半径小的购物车万向轮


    Beteiligte:
    CAI JIANCHEN (Autor:in) / LAI HUANFANG (Autor:in)

    Erscheinungsdatum :

    2021-04-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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