The invention relates to a novel multi-stage lever lifting device which comprises a plurality of levers connected end to end. Fulcrums are arranged below the levers, an acting pull rope is arranged at the front end of the first lever, a hook and a retracting device are arranged between any adjacent levers, and the hooks correspond to detachers located above the hooks. Each retracting device comprises a first supporting rod, a second supporting rod, a transverse telescopic connecting rod, a vertical telescopic connecting rod and a clamping piece, wherein the clamping piece is arranged above the vertical telescopic connecting rod and used for being clamped with the hook, the transverse telescopic connecting rod and the bottom side of one end of the lever are connected to make the level move up and down along the transverse telescopic connecting rod, and a buffering device is connected to the lower portion of the front end of any lever. The stress of the tail end of the lever located at the rearmost end correspondingly acts on an object to be lifted, the lifting displacement of the rear ends of the levers is increased, and by means of lever transmission and heavy object lifting, downward acting force is exerted on the front ends of the levers, the buffering and cushioning effects are achieved, and the lever lifting device is prevented from being damaged in the downward moving process.

    本发明涉及一种新型多级杠杆抬升装置,包括首尾相互连接的若干根杠杆,杠杆下方设置有支点,第一根杠杆前端设置有作用拉绳,任意相邻的杠杆之间设置有钩子和收缩装置,钩子与位于其上方的脱钩器对应设置,收缩装置包括第一支撑杆、第二支撑杆、横向伸缩连杆、竖向伸缩连杆和卡件,卡件设置在竖向伸缩连杆上方,用于与钩子相卡合,横向伸缩连杆与杠杆一端底侧相连接用于沿横向伸缩连杆上下移动,任意杠杆前端下方均连接有缓冲装置,位于最后端的杠杆末端应力对应作用在待抬升物体上,使杠杆后端的提升位移增加,利用杠杆传动和重物提升,对杠杆前端具有向下作用力并具有缓冲缓震作用避免杠杆抬升装置向下移动过程中损坏。


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    Title :

    Novel multi-stage lever lifting device


    Additional title:

    一种新型多级杠杆抬升装置


    Contributors:
    FAN CHUNCAI (author)

    Publication date :

    2021-08-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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