Air conduction device

Abstract

An air conduction device includes main body defining a first passage through which airflow passes, and two adjusting members. A top of the main body defines a cutout communicating with the first passage. The cutout includes two opposite slanted sidewalls, and each slanted sidewall defines a plurality of slots aligned in a line along a slanted direction of the slanted sidewall. An elastic hook extends from each adjusting member. The adjusting members are accommodated in the cutout, with the elastic hooks selectively engaged in one of the corresponding slots.

1 . An air conduction device comprising:
 a main body defining a first passage for airflow pass therethrough, a top of the main body defining a cutout communicating with the first passage, the cutout comprising two opposite slanted sidewalls, wherein each slanted sidewall defines a plurality of slots aligned in a line along a slanted direction of the slanted sidewall; and   two adjusting members each comprising an elastic hook extending therefrom;   
       wherein the adjusting members slidably and respectively mounted to the slanted walls of the cutout to cover the cutout, with the elastic hook of each adjusting member selectively engaged in one of the corresponding slots. 
     
     
         2 . The air conduction device of  claim 1 , wherein each adjusting member comprises a connection portion and a lock portion slantingly extending from a first side of the connection portion, when the adjusting members are slid to retract or extend, the lock portions move down or up along the corresponding slanted sidewalls, the elastic hook extends from the corresponding lock portions. 
     
     
         3 . The air conduction device of  claim 2 , wherein each connection portion is substantially L-shaped, and comprises a connection board and a guide board substantially perpendicularly extending down from a first end of the connection board, the guide boards abut against each other, and then resist against a side bounding the first passage, in response to the adjusting members retract maximumly 
     
     
         4 . The air conduction device of  claim 3 , wherein each connection board defines a depressed portion, away from the lock portion, a gap is defined between the depressed portion and the connection board, the connection board of one of the adjusting members extends through the gap of the other adjusting member. 
     
     
         5 . The air conduction device of  claim 1 , wherein the main body comprises a top plate and two side plates extending downward from opposite sides of the top plate, a clapboard extends downward from the top plate, between the side plates, the first passage and a second passage are formed at opposite sides of the clapboard. 
     
     
         6 . The air conduction device of  claim 5 , wherein each adjusting member comprises a connection portion and a lock portion, the lock portions slidably mounted on the slanted sidewalls, the elastic hooks extend from the corresponding lock portions. 
     
     
         7 . The air conduction device of  claim 6 , wherein each connection portion is substantially L-shaped, and comprises a connection board and a guide board extending from one side of the connection board, the lock portion slantingly extends upward from the connection board, the guide boards of the adjusting members abut against each other, and resist against a side bounding the first passage. 
     
     
         8 . The air conduction device of  claim 7 , wherein the lock portion has an angle equaling to a slanting angle of the corresponding slanted sidewall. 
     
     
         9 . The air conduction device of  claim 7 , wherein each connection board defines a depressed portion, away from the lock portion, a gap is defined between the depressed portion and the connection board, the connection board of one of the adjusting members extends through the gap of the other adjusting member until the guide boards of the adjusting members abut against each other. 
     
     
         10 . The air conduction device of  claim 5 , wherein two guide members extend from the clapboard, facing the cutout, each adjusting member comprises a lock portion sandwiched between the corresponding guide member and the slanted sidewall. 
     
     
         11 . The air conduction device of  claim 10 , wherein each adjusting member comprises a connection portion, and the lock portion slantingly extends upwards from the connection portion, the guide member has an angle equaling to a slanting angle of the corresponding slanted sidewall.