Air duct

Abstract

An air duct includes a frame and a number of guiding members detachably mounted to the frame. The frame includes two opposite sidewalls each defining a number of through holes. Each guiding member includes a plate and a pole connected to a side of the plate. Two protrusions are respectively formed on opposite ends of the pole, to be extended through two corresponding ones of the through holes respectively defined in the two sidewalls, and then are blocked by outer surfaces of the corresponding sidewalls.

What is claimed is: 
     
         1 . An air duct, comprising:
 a frame comprising two opposite sidewalls each longitudinally defining a plurality of through holes; and   a plurality of guiding members detachably mounted between the sidewalls, each guiding member comprising a plate and a pole connected to a side of the plate, opposite ends of the pole and rotatably extending through two corresponding ones, respectively defined in the two sidewalls, of the through holes, two protrusions formed at opposite ends of the pole, each protrusion extending through one of the through holes and blocked by an outer surface of the corresponding sidewall.   
     
     
         2 . The air duct of  claim 1 , wherein a protecting portion extends from the circumference of the pole, adjacent to each of opposite ends of the plate and blocked by an inner surface of the corresponding sidewall opposite to the corresponding protrusion. 
     
     
         3 . The air duct of  claim 1 , wherein each through hole comprises two fan-shaped holes communicating with each other, each protrusion comprises two fan-shaped blocks connected to each other and respectively extending through the corresponding fan-shaped holes of the corresponding through hole and blocked by the outer surface of the corresponding sidewall. 
     
     
         4 . The air duct of  claim 3 , wherein two engaging protrusions extend from the circumference of the pole between each protrusion and the corresponding protecting portion and respectively spaced from the two protrusions; said two fan-shaped blocks of each protrusion forms two concave portions at a joint of the two fan-shaped blocks and each of the two engaging protrusions aligns with one of the two concave portions and is movably received in one of the corresponding fan-shaped holes.