The invention discloses a combined type folding portal crane which comprises bottom frames, stand columns and a connecting cross beam, wherein the bottom frames are symmetrically arranged; the stand columns are correspondingly arranged on the bottom frames; the two ends of the connecting cross beam are fixedly connected with the tops of the stand columns; a hand-power monorail crane is arranged in the middle of the connecting cross beam; the bottoms of the stand columns are articulated with the bottom frames; the stand columns can overturn by taking the hinge joints as the centers of circles; each bottom frame is provided with a slide hammer locking device used for locking the corresponding stand column in a vertical state, and a sand column locking device used for locking the stand column in a horizontal state on the bottom frame. The combined type folding portal crane is convenient and fast to assemble, and is capable of improving the working efficiency; furthermore, the crane can be operated by virtue of the spring force, so that the operation is labor-saving and easy, and the work intensity of workers can be lightened; the combined type folding portal crane is both suitable for field operation and fixed occasions.


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    Title :

    Combined type folding portal crane


    Contributors:
    LAN MIN (author) / ZHU BIXIA (author) / YE CONGCHAO (author) / ZHANG MINGMING (author) / HU HUASONG (author) / TANG JUNJIE (author) / JIANG YONGTAO (author) / YOU HAIQUAN (author)

    Publication date :

    2015-07-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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