The utility model relates to an improved structure of a sprinkler.The claw of the locating ring can elastically hold the water guide pipe.The snap point of the locating ring can effectively engage with the snap tooth of the water inlet joint.The water guide pipe is not easy to slide off.In addition,The outlet direction of the first water channel and the second water channel is tangent to the impeller.So the pressure of the water will push the impeller evenly when the water comes out.Let the sprinkler rotate smoothly.And an extension rod is pivoted on the shift rod of the water inlet switching device.When the extension bar is pushed,Because there is a gap between the connecting rod and the connecting groove,So when the paddle swings,A part of the strength of the extension bar will be converted into the momentum of displacement.To reduce the force on the extension rod,Those who can increase their service life.一種灑水器結構改良，其定位環的卡爪可以彈性固持該導水管，定位環的卡點可有效囓合於入水接頭的卡齒，使該導水管不易滑脫，另外，該第一水道與第二水道的出水方向與葉輪相切，所以出水的時後水的壓力會均勻的推動葉輪，讓灑水器的轉動均勻順暢，而該入水切換裝置的撥桿上樞接有接桿，接桿在推動的時候，因接桿與接槽間有間隙，所以撥桿擺動時，接桿的承受的力量會有一部份轉換成位移的動量，以降低接桿的受力，可增加使用壽命者。
