Combined mutual inductor convenient to overhaul and maintain

The combined mutual inductor convenient to overhaul and maintain comprises a device box structure, the device box structure comprises a fixed bottom plate, a fixed side plate and a movable frame, an embedded groove is formed in the center of the upper end of the fixed bottom plate, and an adjusting block is fixedly arranged at the position, corresponding to the embedded groove, of one side of the lower end of the movable frame. A motor groove is formed in the position, located on one side of the embedded groove, of the upper end of the fixed bottom plate, the motor is fixedly arranged in the motor groove, and the output end of the motor penetrates through the fixed bottom plate to be fixedly connected with the threaded column. The threaded column penetrates through the adjusting block through threaded connection and is rotationally connected with the end, away from the motor groove, of the embedded groove, and the fixed side plates are fixedly arranged at the positions, located on the two sides of the movable