The invention provides an electric lifting appliance. The electric lifting appliance is provided with a chain and at least one telescopic elastic piece, wherein two opposite ends of each telescopic elastic piece are combined with a first mounting portion and a second mounting portion of the chain separately, a first length is formed between the first mounting portion and the second mounting portion, and a second length generated after the telescopic elastic piece is stretched is smaller than the first length. At least one telescoping elastic piece is provided on the chain of the electric lifting appliance, when the electric lifting appliance is used to lift a steel cord I-shaped wheel to be assembled to an unwinding seat, a reverse acting force applied to the steel cord I-shaped wheel by the telescoping elastic piece upwards lifts the steel cord I-shaped wheel, a gap is formed between the bottom surface of the steel cord I-shaped wheel and the top surface of the unwinding seat, an operator can easily pull a strong magnetic chuck handle to rotate the steel cord I-shaped wheel by one hand, a pin hole is aligned with a hinge pin of the unwinding seat, it is not needed to tension the unwinding force arm to increase the tension of the unwinding seat to avoid rotation of the unwinding seat, and thus the workload and labor intensity of the operator are reduced.

    本发明提供一种电动吊具,具有链条和至少一伸缩弹性件,每一伸缩弹性件的相对的两端分别结合于链条的第一安装部和第二安装部,第一安装部到第二安装部之间具有第一长度;其中,伸缩弹性件伸长后的第二长度小于第一长度。在电动吊具的链条上设置至少一个弹性伸缩件,当电动吊具用于吊起钢帘线工字轮和放线座装配时,弹性伸缩件施加在钢帘线工字轮上的反向作用力,向上抬升钢帘线工字轮,钢帘线工字轮的底表面和放线座的顶表面之间存在间隙,操作人员实现单手轻松扳动强磁吸盘把手转动钢帘线工字轮,使得销孔与放线座的销轴相互对准,不需要再拉紧放线力臂增加放线座的张力避免放线座转动,减小了操作人员的工作量和劳动强度。


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    Titel :

    Electric lifting appliance


    Weitere Titelangaben:

    一种电动吊具


    Beteiligte:
    JIANG RONGYING (Autor:in) / JIANG MAOHUA (Autor:in) / LIU DELONG (Autor:in) / ZHAO JUNSHENG (Autor:in) / XU BIN (Autor:in)

    Erscheinungsdatum :

    2020-09-29


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES / B66D Haspeln , CAPSTANS



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