The invention discloses a multi-stage telescopic device, and relates to the technical field of hoisting mechanisms. The multi-stage telescopic device comprises an output module and a lead screw module. The output module comprises a supporting device, a motor arranged on the supporting device, a synchronous belt wheel arranged on an output shaft of the motor, a rotating shaft barrel driven by the synchronous belt wheel to move, a first threaded pipe assembled on the lower side of the interior of the rotating shaft barrel, and a first outer pipe which is fixedly assembled on the lower side of the supporting device and arranged on the outer side of the rotating shaft barrel in a sleeving mode. The lead screw module comprises a plurality of second outer pipes arranged on the outer side of thefirst outer pipe in a sleeving mode, and the multiple second outer pipes are sequentially connected in a sleeving mode from top to bottom from small to large. Each second outer pipe is internally provided with a lead screw, and the multiple lead screws are sequentially connected in a sleeving mode from top to bottom from large to small. The inner side of the lower end of the lead screw on the upper side is fixedly provided with a second threaded pipe, and the lead screw on the upper side is assembled on the inner side of the second threaded pipe in a threaded mode. By adoption of the technicalscheme, bidirectional force is provided, and the application range is widened.

    一种多级伸缩装置,它涉及起升机构技术领域。它包括:输出模组和丝杆模组;所述输出模组包括:支撑装置,设置于所述支撑装置上的电机,设置于所述电机输出轴上的同步带轮,由所述同步带轮带动运动的转轴筒,装配于所述转轴筒内部下侧的第一螺纹管,固定装配于所述支撑装置下侧、且套设于所述转轴筒外侧的第一外管;所述丝杆模组包括数个套设于所述第一外管外侧的第二外管,数个第二外管由从小到大的顺序从上往下依次套接;每个第二外管内都设有丝杆,数个丝杆由从大到小的顺序从上往下依次套接,上侧的丝杆下端内侧固定装有第二螺纹管,上侧的丝杆螺纹装配于第二螺纹管内侧。采用上述技术方案,具有提供双向力、增加应用范围。


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    Titel :

    Multi-stage telescopic device


    Weitere Titelangaben:

    一种多级伸缩装置


    Beteiligte:
    XIE ZHAO (Autor:in)

    Erscheinungsdatum :

    2020-12-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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