Wellhead tank waiting warning device and operation method thereof

The invention belongs to the technical field of mine warning, and discloses a warning device for well mouth tank waiting and an operation method thereof.The warning device comprises two bottom supporting frames, side guide rails are installed on the sides, relatively away from each other, of the front ends of the two bottom supporting frames, and top supporting frames are installed at the rear ends of the two bottom supporting frames; a back plate is arranged at the rear ends of the two bottom supporting frames, and the left side and the right side of the front end of the back plate are connected with the rear ends of the two bottom supporting frames. The arrival state of the cage is utilized, namely, when the cage is in place, a signal of a distance sensor is automatically triggered, so that an electric push rod works, then limiting at the rear end of a mounting rod is automatically relieved, after limiting is relieved, a safety door is automatically opened through personnel entering, and it is ensured that