| 摘要 |
A fluid guiding device ( 1 ) includes a ventilating pipe ( 10 ), a barrel ( 20 ) and a holding frame ( 30 ). The ventilating pipe includes two spring levers ( 154 ). A handling tab ( 156 ) and an engaging tab ( 158 ) extend from a free end of each spring lever, respectively outwardly and inwardly. The barrel forms two jagged members ( 262 ) thereon. Each jagged member forms a plurality of parallel teeth ( 264 ). The engaging tabs are selectively engaged with corresponding teeth respectively to position the barrel to the ventilating pipe when the barrel is moved to a desired location in the ventilating pipe. The engaging tabs escape from teeth by pulling the handling tabs outwardly to allow the barrel to be movable on the ventilating pipe. The holding frame is secured to the barrel for holding a fluid-driving device thereon.
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