| 摘要 |
PURPOSE: A sprinkler for spraying in a square shape is provided to spray fluid from a spraying nozzle in a square shape and to spray fluid to a region close to the sprinkler. CONSTITUTION: A sprinkler for spraying in a square shape has a jet guide plate(20) formed in order to guide fluid from a spraying nozzle, which sprays fluid, to be sprayed in a square shape. The jet guide plate comprises a spraying part(21) protruding from one side in order to contact with fluid sprayed from the spraying nozzle; and a guide part having a curved surface which is concave to the inner side, having the spraying part on the curved surface as a vertex, and making each side of the jet guide plate form a triangle-shaped bottom.
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