| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an automatic pressure reducing valve having higher accuracy and a further favorable expansion and contraction effect. <P>SOLUTION: There is disclosed the automatic pressure reducing valve. The automatic pressure reducing valve includes: a rear housing 1 having an air discharging hole; a front housing 2 screwed with the rear housing; a tapered piston 3 movably attached into the rear housing; a spring 4 attached into the front housing; and a locking ring having an air discharging groove. One end of the spring is located in a cavity 5 of the front housing, the other end of the spring is sleeve-connected to the upper part of the end of a cylinder of the tapered piston, and the locking ring is fixed between the front housing and the rear housing. Air is discharged through the air discharging hole 11 and the air discharging groove, thereby all components of the pressure reducing valve can further tightly be assembled, the loosening of the component is prevented, and pressure necessary for expanding a tire and controlling an air leak flow during pressure reduction can be maintained. <P>COPYRIGHT: (C)2013,JPO&INPIT |
