| 摘要 |
PURPOSE: A sprinkler is provided to easily discharge water which is supplied to a multi-stage post, and to reduce installation time without a joint device for installing the sprinkler while easily replacing a breakage part of a sprinkler head. CONSTITUTION: A joint pipe(100) is installed at a water pipe. A multi-stage joint post(200) comprises a first body(220), a hollow second body(230), and a third body(240). The first body is screwed in a lower connector. A first protrusion is formed on the upper inner circumference. The second body is built inside the first body. A second protrusion is formed on the upper inner circumference. The first hooking jaw is formed on the lower outer circumference. A sprinkler head(300) is combined to the upper outer circumference. The sprinkler head comprises a binding tool, a connecting tool, a rotating tool, and a spray nozzle supplying the water. |
