Walking portal frame with movable lifting point for engineering installation

The utility model relates to the technical field of hoisting, and discloses a travelling portal frame with a movable hoisting point for engineering installation, which comprises two bases, hydraulic cylinders are in sliding connection with the bases, the upper ends of the hydraulic cylinders are provided with connecting columns, a second screw rod is arranged between the connecting columns, and one side of the second screw rod is provided with a hoisting point mechanism; tires on the lower side of the base drive the portal frame to walk, the hydraulic cylinder can adjust the height of the portal frame, and construction sites are diversified; the hydraulic cylinder is slidably connected with the base to realize front-and-back movement of the lifting point, and the lifting point mechanism on the outer side of the second screw rod can realize left-and-right movement of the lifting point; the second motor drives the screw rod to rotate, then the screw rod drives the gear sleeving the outer side of the screw rod t