Patent ID: 8348179

Claim:
A sprinkler assembly comprising: a body having a holding chamber defined in the body; and a connecting plug formed on one end of the body and having an inlet; a base assembly mounted in the holding chamber of the body and comprising a lower base having a top; a bottom; a wheel chamber formed in the bottom; and a water entrance formed in the bottom and communicating with the wheel chamber via a passage; and an upper base being hollow, formed on and protruding from the top of the lower base and having a bottom segment separated from the top of the lower base to define a gap between the bottom segment of the upper base and the top of the lower base and communicating with the wheel chamber in the lower base; a wheel rotatably mounted in the wheel chamber in the lower base and having a driving gear mounted through the top of the top of the lower base and held in the gap between the lower and upper bases; and multiple blades formed around the driving gear and each blade having a free end corresponding to the passage; a gear assembly comprising multiple gear sets engaging each other, each gear set comprising a driving gear and a driven gear coaxially mounted on the driving gear and having a number of teeth different from that of the driving gear, wherein the driving gear of one of the gear set engages the driving gear on the wheel; a discharging valve mounted on the base assembly and having a valve board mounted on the base assembly; and at least one discharging hole defined through the valve board; a spraying head being hollow, coaxially connected rotatably to the discharging valve and having a bottom; multiple spraying holes defined in the spraying head at positions away from the bottom of the spraying head; a driven gear mounted around the bottom of the spraying head and engaging the driven gear of one of the gear sets of the gear assembly; and at least one aligning hole defined through the bottom of the spraying head and selectively aligning respectively with the at least one discharging hole in the discharging valve; and a cover mounted on the body and having a through hole defined through the cover and through which the spraying head extends out.