| 摘要 |
<p>PURPOSE: To provide a multi-type sprinkler head which has an excellent design and has no possibility that dusts or the like enter the inside. CONSTITUTION: The sprinkler head has a protective cover 60 which is formed like a bottomed cylinder with an outside diameter nearly equal to or a little larger than the outside diameter of a frame 10, has, at the bottom, a screw part 68 to be screwed to a screw part 52 installed at the lower end of a link mechanism 40, and has a height covering the water spray hole of the frame 10 nearly up to the upper edge thereof when screwed to the link mechanism 40.</p> |
