HIGH-PRESSURE-RESISTANT AIR INLET VALVE HAVING PRESSURE REGULATING AND SAFETY AIR RELEASE FUNCTIONS

摘要

A high-pressure-resistant air inlet valve having pressure regulating and safety air release functions, of which the outer side is provided with an air inlet valve housing (7), the bottom of the air inlet valve housing (7) being provided with a gap capable of implementing air exchange. The air inlet valve comprises an air inlet valve body (4) and a sealing piston body (6); an elastomer (3) is provided between the sealing piston body (6) and the air inlet valve body (4); the top of the air inlet valve is provided with a rotary cover body (1); the air inlet valve body (4) and the air inlet valve housing (7) are tightly engaged, by means of threads, at an opening of a product needing to be inflated; the air inlet valve body (4) is provided with an exhaust hole (43); the sealing piston body (6) is movably connected to the air inlet valve body (4); the rotary cover body (1) is located above the air inlet valve body (4) and is rotatable; when the rotary cover body (1) rotates to a root portion, the rotary cover body (1) rotates to enable the exhaust hole (43) to be unsealed, and drives the side edge of the air inlet valve body (4) to be separated from the sealing piston body (6) at the same time, and in this case, air can enter the exhaust hole (43) from the gap of the air inlet valve housing (7) to implement air exchange.