Self-adaptive adjustable pressure relief device, pressure relief method and inflatable switch equipment

The invention discloses a self-adaptive adjustable pressure relief device, a pressure relief method and inflatable switch equipment. The self-adaptive adjustable pressure relief device comprises a mounting flange and a pressure relief plate, a through hole is formed in the mounting flange, the top surface of the pressure relief plate is attached to the bottom surface of the mounting flange, and the pressure relief plate covers the bottom end of the through hole; the mounting flange is connected with a plurality of pressure spring adjusting bolts penetrating through the pressure relief plate, pressure springs are nested on the pressure spring adjusting bolts, free ends of the pressure spring adjusting bolts are in threaded connection with pressure spring adjusting nuts, one ends of the pressure springs are in contact with one ends, facing the pressure relief plate, of the pressure spring adjusting nuts, and the other ends of the pressure springs are in contact with the bottom surface of the pressure relief pla