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.
Combined type folding portal crane
2015-07-15
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |