Mobile assembling gantry crane

The invention discloses a movable assemble type gantry crane, which is characterized in that the gantry crane comprises two base beams (5), and two ends under every base beam (5) are respectively connected with universal combined wheels (6), and the middle part of every base beam (5) is respectively fixed with a lower pillar (4) by a bolt, and an upper pillar (3) is connected in the lower pillar(4), and the two ends of every base beam (5) are respectively provided with hand cranking wire tightening devices (8), and a wire rope of the hand cranking wire tightening device (8) is fixed on the top end of the upper pillar (3), and the upper pillar (3) is connected with an upper beam (1), and a slide spreader (2) is hung on upper beam (1). The invention is simple in structure, safe and reliable and fast in assembly, and is suitable in hanging of different environment equipment indoor, can finish repairing with good quality and high efficiency within the set time, thus reducing the cost and enhancing the working eff