Improved detection robot

The utility model relates to the technical field of tunnel electromechanical facility fault detection, in particular to an improved detection robot which comprises a robot body, wheels, a support, an infrared detector, a heat dissipation plate and a protection device, the wheels are rotationally connected with the surface of the robot body, the support is arranged on the surface of the robot body, and the infrared detector is arranged on the support. The infrared detector is arranged on the surface of the support, the heat dissipation plate is arranged on the surface of the robot body, the protection device is arranged on the surface of the robot body and comprises a fixing plate, the fixing plate is fixedly connected with the surface of the robot body, and a clamping plate is connected to the inner wall of the fixing plate in an inserted mode. According to the utility model, through the arrangement of the protection device, the robot body can be effectively protected when being impacted by external force, an