The invention relates to an automatic unhooking device. The automatic unhooking device comprises a rod-end knuckle bearing, a lengthening device, a tension protective device, a self-locking mechanism, a suspending main body, a lifting hook and a counterweight, wherein the rod-end knuckle bearing, the lengthening device, the tension protective device, the suspending main body and the lifting hook are connected in sequence from top to bottom; the lifting hook is fixedly connected under a rotary disc; the rotary disc is movably connected at the lower end of the suspending main body by a first pin shaft; a counterweight block is fixedly connected at the side-upper part of the rotary disc by a connecting rod; and the connecting rod is connected with the suspending main body by the self-locking mechanism. The automatic unhooking device has the advantages that the automatic dropping of the lifting hook is used for replacing manual unhooking, so that the effects of reducing the operation risk and improving the working efficiency are achieved.


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    Title :

    Automatic unhooking device


    Contributors:
    LI JIN (author) / YAO JUNPING (author) / ZHANG YANGUO (author) / MAO JUNPING (author) / XIE XIN (author)

    Publication date :

    2015-07-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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