Detection device capable of quickly checking track spacing and bolt tightness

The invention relates to the technical field of railway laying, and discloses a detection device capable of quickly checking track spacing and bolt tightness. The detection device comprises a mountingframe, the side surface of the mounting frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a walking wheel, and the lower end of the mounting frame is rotatably connected with a clamping wheel; a connecting rod is rotatably connected to the side face of the mounting frame, a supporting plate is rotatably connected to the end, away from the mounting frame, of the connecting rod, and a push plate is fixedly connected to the side face of the supporting plate. The limiting rod pulls the rotating block to move, the bottom of the rotating block is in sliding connection with the push plate, the side face of the push plate is connected with the switch transmission mechanism, the switch gate is opened, paint in the paint groove falls on the surface of asteel rail, and therefore