Movable base for tower crane

The utility model discloses a movable base for a tower crane, which belongs to the technical field of tower cranes and comprises a base, a tower crane body is arranged at the top end of the base, two supporting plates and a straight plate are fixed at the bottom end of the base, connecting plates are fixed on two sides of the tower crane body and are connected with the base through bolts, and the connecting plates are connected with the base through bolts. A moving plate is arranged on the inner side of the supporting plate, universal wheels are fixed to the bottom end of the moving plate, and a driving rod is connected to the inner side of the moving plate through a first connecting block; a square notch is formed in the side face of the straight plate, moving rods are arranged on the two sides of the straight plate, a threaded groove is formed in one end of each moving rod, a threaded rod is arranged at one end of each moving rod, the other end of each moving rod is connected with the other end of the drivi