Alignment device for assisting pay-off of constructional engineering

The utility model discloses an auxiliary setting-out device for constructional engineering, which relates to the technical field of constructional engineering and comprises a base, the inner wall of the base is connected with a hydraulic cylinder, one end of the hydraulic cylinder is provided with threads, and the outer wall of the top end of the base is provided with a bolt. Supporting legs penetrating through the outer wall of the base and extending into the base are connected to the bottom end of the base, a fixing frame is connected to the top end of the hydraulic cylinder, a rotating shaft penetrating through the fixing frame is connected to one side of the fixing frame, a winding reel is connected to the position, located on the inner side of the fixing frame, of the outer wall of the rotating shaft, and a second rotating disc is connected to one end of the rotating shaft; the inner wall of the fixing frame is connected with a lead screw, and one end of the lead screw is connected with a first rotating