| 摘要 |
An adjustable sprinkler nozzle includes a cap with a first spiraling face, the bottom edge of which is provided with a stepped flange. A body that forms a nozzle orifice with the cap is composed of upper and lower bodies coupled together using high frequencies such that the upper body, during injection molding, is formed with a third spiraling face that extends from an inner tubular wall thereof to correspond to a second spiraling face on the outer periphery. The inner diameter of the third spiraling face can just be fitted into by the larger outer diameter of the stepped flange of the cap. Furthermore, a longitudinal drop face formed between the high and low planes of the third spiraling face is provided with a first stop piece projecting upwardly from a highest point thereof The stop piece is inwardly provided with an inclined face. The inner wall surface of the third spiraling face is provided with a second stop piece relative to the position of the first stop piece.
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