Air leakage prevention inflating valve

The utility model discloses an air leakage prevention inflating valve which comprises an inflating valve rod, the inflating valve rod comprises an upper section and a lower section, a leakage prevention valve is arranged between the upper section and the lower section, the leakage prevention valve comprises a shell, a base, a spring, a steel ball and an inner core, the shell is rotatably connected to the outer side of the inner core, the top of the inner core is in threaded connection with the upper section, and a vent hole and a connecting hole are formed in the inner core. The base is in threaded connection with the lower section, a stepped hole is formed in the base, the spring is fixed in the stepped hole, the steel ball is fixedly connected with the spring, ejector rods are distributed on the side, facing the inner core, of the base, a plurality of vent grooves are formed between the ejector rods, the ejector rods and the side wall of the stepped hole are inserted into connecting holes, and a plurality o