| 摘要 |
<p>A liquid dispensing device comprises a body member (2) connectable to a source of pressurized liquid and a nozzle (8) carried by the body member (2) and having an inlet (10) communicating with the source of pressurized liquid, and an outlet orifice (12) for discharging the pressurized liquid in the form of a jet. The nozzle (8) is rotatably mounted in the body member (2) to either an operative position wherein its inlet (10) faces the source of pressurized liquid for discharging the pressurized liquid through its outlet orifice (12), or to a self-cleaning position wherein its outlet orifice (12) faces the source of pressurized liquid for flushing out clogging particles through the nozzle inlet (10). In one embodiment the nozzle includes two sections, one of which is presettable to a plurality of different positions to define with the other section a plurality of outlet orifices of different cross-sectional areas.</p> |
