Safety warning device

The safety warning device comprises a bottom plate and a supporting pipe, a box body is detachably installed on the top of the bottom plate through bolts, a rectangular opening is formed in the middle of the top of the box body, a transmission mechanism is installed in the box body, a rectangular block is welded and fixed to the inner wall of the rectangular opening in the top of the box body, and the rectangular block is fixedly connected with the supporting pipe. A second bearing is fixedly welded to the inner wall of the rectangular block, a rotating shaft is fixedly welded to the inner wall of the second bearing, a rotating pipe is fixedly welded to the top of the outer wall of the circumference of the rotating shaft, a first bearing is fixedly welded to the middle of the inner wall of the circumference of the rotating pipe, and a connecting rod is fixedly welded to the inner wall of the first bearing; a mounting plate is welded and fixed to the top of the connecting rod. By arranging the rotating shaft,