Quick gas inflation airbag device for coal mine safety

The utility model relates to the field of coal mine safety, in particular to a gas rapid inflation air bag device for coal mine safety. Comprising a supporting frame, a mounting groove formed in the outer wall of the inner side of the supporting frame, single columns welded to the outer walls of the two sides of the supporting frame, rotating rods rotationally connected between the single columns at equal intervals, protective belts fixed to the outer walls of the two sides of the mounting groove and an inflation structure connected to the outer wall of one side of the supporting frame. The inflation structure comprises a box body, an air pump installed on the inner wall of the bottom of the box body, a flexible air bag connected to one side of the box body and an air inlet filtering structure connected to the outer wall of the top of one side of the box body. The air bag extends to the other end of the supporting frame along the mounting groove after being internally inflated, the flexible air bag is protect