| 摘要 |
A self-cleaning sprinkler is disclosed. The self-cleaning sprinkler includes a housing having an internal chamber. The internal chamber defines an interior scraping surface. A rotatable spool is disposed within the internal chamber. The spool includes external threads, defining a spiral passageway. A spacer extending from the spool that maintains the spool at a distance from a wall of the internal chamber to create an exit chamber is included. Pressurized fluid passing through the spiral passageway causes the spool to rotate. As the spool rotates, debris is compressed between the threads and the scraping surface, breaking the debris up into smaller pieces.
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