Inspection device for transformer substation

The invention discloses an inspection device for a transformer substation, which improves the protection performance of the whole inspection device, is more flexible in adjustment of a camera, is morereliable in protection of the camera and a mobile vehicle body and improves the durability and the adaptability. The inspection device comprises a mobile vehicle body, wherein a protective frame is arranged outside the mobile vehicle body, driving rear wheels are arranged behind the bottom of the mobile vehicle body, and universal front wheels are arranged in front; a sensor fixing assembly usedfor fixing a sensor is supported in front of the top of the mobile vehicle body through a supporting frame, a three-joint mechanical arm is installed behind the top of the mobile vehicle body, a camera assembly is installed at the tail end of the three-joint mechanical arm, and the bottom of the three-joint mechanical arm is fixed to the top surface of the mobile vehicle body through a fixing table; the three-joint mechani