| 摘要 |
<p>A static sprinkler presettable to select a desired water discharge pattern includes a lower part (10) formed with a cavity (15) defined by a cylindrical surface and extending axially from an inner end of the lower part serving as a water inlet through the outer end of the lower part; and an upper part (20) carried by the lower part and having a cylindrical stem (21) received within the cavity and engaging the cylindrical surface. The upper part is rotatably presettable with respect to the lower part to align one of a plurality of water discharge openings (11-14) in one part with a passageway (23-25) in the other part to thereby enable selection of the water discharge pattern of the sprinkler.</p> |
