Desiccant rotor of a dehumidifier

Claim 1

A desiccant rotor comprising a housing rotatably engaged between a cap and a base, at least one plate engaged on one end of said housing, at least one board engaged on the other end of said housing, and at least three barrels engaged between said plate and said board, each of said barrels including a passage formed in a center portion thereof and made of screen material and having one end for receiving air, a stop disposed in a middle portion of said passage for preventing said air from directly flowing out of said barrel, a shaft rotatably engaged between said cap and said base and coupled to said plate and said board such that said shaft rotates in concert with said barrels, said shaft including a first end extended outward through said board, and a rotating mechanism including at least one beam having a ring formed integral on a first end thereof, an actuator pivotally coupled to a second end of said beam, and having a piston rod, a stub rotatably engaged in said ring and having a ratchet gear formed thereon, said first end of said shaft coupled to said stub and rotated in concert with said stub, a lever having a first end pivotally coupled to said piston rod of said actuator and having a sleeve formed on a second end thereof and rotatably engaged on said stub, a pin disposed in said sleeve, and means for biasing said pin to engage with said ratchet gear, whereby, said shaft and said barrels are rotated when said sleeve is rotated relative to said stub by said actuator.