Movable detection rack

The utility model provides a movable detection rack which can realize nondestructive detection of lining quality of an existing line, improve the detection efficiency and reduce the risk. The mobile detection rack comprises a rail car, a vertical rod, a stable steel cable, a lever beam, a lever connecting assembly, a connecting rod, a radar antenna and an angle adjusting device. The vertical rod is vertically installed on the upper surface of the rail car, and a plurality of overhauling crawling ladders are arranged on the two sides of the vertical rod. A stable steel cable is connected between the side face of the vertical rod and the rail car. The lever beam is pivoted to the top end of the vertical rod in a matched mode, and lever connecting assemblies are arranged at the two ends of the lever beam. The lever connecting assembly comprises a sleeve arranged at the end of the lever beam in a sleeving mode and a plurality of bolts arranged in the sleeve in a penetrating mode. One end of the connecting rod pen