Patent ID: 7445164

Claim:
A sprinkler, comprising: a fixed unit having a water inlet; a rotary unit mounted rotatably on and fluidly communicated with said fixed unit; an impeller rotating said rotary unit and adapted to be driven by water from said water inlet; a connector mounted on and fluidly communicated with said rotary unit; and a spray head mounted on and fluidly communicated with said connector, said spray head being rotatable relative to said rotary unit so as to change an inclined position of said spray head; wherein said fixed unit has a shaft defining a first axis, said rotary unit being rotatable about said first axis, said connector including a first connector part rotatable about a second axis which is transverse to said first axis, said first connector part being coupled to said spray head so as to adjust the inclined position of said spray head; wherein said connector further includes a second connector part connected to and rotatable along with said rotary unit, said first connector part being connected to said second connector part rotatably and adjustably; and wherein each of said first and second connector parts has an outer shell and a central joint member disposed inside said outer shell, said central joint members of said first and second connector parts being aligned along said second axis and being interconnected rotatably, said outer shells of said first and second connector parts respectively having open ends which are interconnected hermetically, said connector further including a water space that is formed inside said outer shells and around said central joint members and that is connected fluidly to said rotary unit and said spray head.