Hand-held hydraulic steel bar straightening device

The invention relates to the technical field of lifting type hydraulic reinforcing steel bar straightening devices, in particular to a lifting type hydraulic reinforcing steel bar straightening device which comprises a connecting base, an adjusting mechanism is arranged on the connecting base and comprises a straightening block, and the straightening block is rotationally connected to the lower surface of the connecting base. Fixing seats are symmetrically and fixedly connected to the front side and the rear side of the straightening block, square cavities are formed in the fixing seats, sliding plates are slidably connected to the interiors of the square cavities, locking assemblies are arranged on the fixing seats, mounting seats are fixedly connected to the ends, away from the fixing seats, of the sliding plates, and rolling columns are rotatably connected to the interiors of the mounting seats; a rotating assembly is arranged between the connecting base and the adjusting block and used for adjusting the o