| 摘要 |
<p>A pop-up, rotating stream sprinkler device includes an outer housing (12), an inlet end (14) for connection to a source of liquid under pressure, a first inner housing (48) telescopically mounted within the outer housing for movement between retracted and extended positions, and an outlet end provided with a first arcuate slot (122) to discharge a stream of liquid under pressure. A non-rotatable shaft (70) rotatably supports a substantially hollow distributor assembly (80) at one end. The other end of the shaft is fixedly mounted in the first inner housing (48), and the distributor assembly includes a chamber (102) at least partially filled with viscous fluid and enclosing a stator (78) for retarding the rotation of the distributor assembly. A rotatable nozzle disk (108) is removably secured to the first inner housing (48) and provided with at least one discharge orifice (124), so that the nozzle is rotatable to align any part of the at least one discharge orifice (124) with the arcuate slot (122).</p> |
