1–7 of 7 hits
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    Intelligent drive control construction hoist and control method

    Free access
    XI GUIJI / ZHANG ZHENGGUO / HE HONGWEI et al. | European Patent Office | 2020

    Vertical circulation parking equipment charging device with settlement energy storage device

    Free access
    QIAN ZHONG / ZHANG ZHENGGUO / XI GUIJI et al. | European Patent Office | 2023

    Adjustable platform for wall-attached mounting and dismounting of construction hoist and mounting and dismounting method

    Free access
    LI NIANFENG / XI GUIJI / ZHANG ZHENGGUO et al. | European Patent Office | 2021

    Expansion type construction hoist ladder cage

    Free access
    HE HONGWEI / XI GUIJI / ZHANG ZHENGGUO et al. | European Patent Office | 2020

    Construction hoist with constant speed device and using method

    Free access
    XI GUIJI / ZHANG ZHENGGUO / LIU GUOHAI et al. | European Patent Office | 2020

    Intelligent frequency conversion integrated machine for construction hoist

    Free access
    MA JIHUI / ZHANG ZHENGGUO / XI GUIJI et al. | European Patent Office | 2021

    Falling protector device based on double-column construction hoist and operation method thereof

    Free access
    LIU GUOHAI / XI GUIJI / ZHANG ZHENGGUO et al. | European Patent Office | 2021