Inflator

The utility model discloses an inflator belongs to tire inflation apparatus technical field, is equipped with air outlet channel, air outlet channel's exit linkage outlet duct in the middle of the cylinder bottom threaded connection barrel base, barrel base, inflator pole lower extreme in the barrel is equipped with the clamp plate, the bottom valve is the cylinder, be equipped with main gas pocket in the middle of the bottom valve lower extreme, main gas pocket upper end is equipped with the spring hole, the downthehole ann of spring has the spring, the bottom valve upper end is equipped with the external screw thread corresponding with well nut, be equipped with the internal thread in the middle of the well nut, well nut upper end is equipped with the external screw thread corresponding with the top nut, the external screw thread lower extreme transversely is equipped with several inlet port no. 2, be equipped with the internal thread in the top nut, the circle of top nut upper end keeps off covering and is