Patent ID: 7997296
Filing Date: 2011-08-16
Classification: F16K,Y10T

Abstract:
1. An air valve device adapted to mount to an inflatable article, comprising: a cap having an inner circumferential surface in which a first inner threading section, a second inner threading section, and an inner flange are formed; an insert having an outer surface forming an outer flange and an interior space in which a partition board is formed, the partition board forming a rod hole and a plurality of air passage openings distributed around the rod hole, a front lid forming air passage openings and received in a receiving slot defined in an open end of the insert; a slidable rod forming a front stop in a front end section, an intermediate stop in a middle section, and a rear stop in a rear end section; a main body having an outer surface forming a first outer threading section, a second outer threading section, and a stop rim and an interior space in which a partition board forming a rod hole and air passage openings is arranged to divide the interior space of the main body into a front chamber and a rear chamber, a rear lid forming air passage openings and received in a receiving slot defined in an open end of the rear chamber; wherein the insert is arranged in the front chamber of the main body with the outer flange of the insert located frontward of the inner flange of the cap, and the slidable rod extends through the rod hole of the insert and the rod hole of the main body with the front stop of the front stop located frontward of the partition board inside the interior space of the insert, the intermediate stop of the slidable rod located between the partition board of the insert and the partition board of the main body, and the rear stop of the slidable rod located in the rear chamber of the main body; and wherein by rotating to move the cap to different axial locations with respect to the main body, the intermediate stop or the rear stop of the slidable rod is made to engage or disengage from the partition board of the main body for selectively closing or opening the air passage openings of the partition board to respectively realize an air-tight sealing condition, a deflation-allowed and inflation-prohibited condition, and an inflation-allowed and deflation prohibited condition.