Adjusting device for assembling steel pipe arch

The utility model discloses an adjusting device for assembling a steel pipe arch, which belongs to the technical field of arch bridge construction, and comprises a lifting mechanism and a top frame at the top of the lifting mechanism, both the top frame and the lifting mechanism can move along the inner wall or the outer wall of an arch rib section, and the lifting mechanism drives the top frame to restore the out-of-round part of the arch rib section or align adjacent staggered arch rib sections; and liftable rollers are arranged at the bottom of the lifting mechanism. The lifting mechanism moves along the inner wall or the outer wall of the arch rib section by means of the idler wheels capable of ascending and descending at the bottom of the lifting mechanism, the idler wheels retract into the lifting mechanism after moving to the out-of-round or staggered slab position of the arch rib section, and the lifting mechanism drives the top frame to correct the out-of-round or staggered slab position of the arch