Visual detection device for positioning and verticality adjustment of concrete filled steel tube stand column

The utility model relates to a visual detection device for positioning and verticality adjustment of a concrete filled steel tube stand column, and belongs to the technical field of geotechnical engineering field operation and monitoring. The centering support is arranged at the top of the steel column. A hollow plate is arranged on a bottom flange plate of the steel stand column as a target plate, and a target center is arranged in the middle of the target plate. And a compass is arranged beside. The inner end of the support arm of the centering support and the centering flange plate are provided with a hinge device and a fixing device. The lower surfaces of the outer ends of the support arms are provided with support arm clamping grooves corresponding to the edges of the steel columns. The three connecting rods form a triangle, and the ends of the two connecting rods are connected through corresponding centering bolts. Each supporting arm is provided with a strip-shaped insertion hole, and the centering plu