Patent ID: 6530751
Filing Date: 2003-03-11
Classification: F04D,Y10T

Abstract:
A device for controlling air filling and exhausting of an air cushion comprising a casing, an upper cover, an air-exhausting nozzle and a support plate:said casing provided inside with a motor controlled by a wire controller and a fan blade driven by said motor, said casing bored in one wall with a through hole connected with said air-exhausting nozzle in a front side, said air-exhausting nozzle shaped as a hollow column and having a nut threadably fitted around and a hollow frame-shaped triggering member positioned inside, said triggering member having a spring fitted around a center rod, with one end of said spring resting on an annular projection formed around an inner wall of said air-exhausting nozzle to push against said triggering member to be always positioned within said air-exhausting nozzle, said triggering member having a film provided at a front side for closing up said air-exhausting nozzle, a support plate fixed on an end of said casing, a transformer and an electro-magnetic valve fixed on an upper side of said support plate, said electro-magnetic valve having a magnetic rod fixed with a push plate on one end facing said air-exhausting nozzle, said push plate provided at one end with a push rod protruding through said casing and extending into said air-exhausting nozzle, said push plate further fixed on a bottom edge with a pin protruding downward, said pin pivotally fitted on one end of an interactive rod, said interactive rod having a through hole in a center to receive a support stud on said support plate and having one end protruding out of said casing for handling conveniently.