Abstract: A sprinkler includes a fixed unit, a rotary unit, an impeller, a connector, and a spray head. The fixed unit has a water inlet. The rotary unit is mounted rotatably on and is fluidly communicated with the fixed unit. The impeller rotates the rotary unit and is adapted to be driven by water from the water inlet. The connector is mounted on and is fluidly communicated with the rotary unit. The spray head is mounted on and is fluidly communicated with the connector. The spray head is rotatable relative to the rotary unit so as to change an inclined position of the spray head.

Abstract: A sprinkler includes a fixed unit, a rotary unit, an impeller, a connector, and a spray head. The fixed unit has a water inlet. The rotary unit is mounted rotatably on and is fluidly communicated with the fixed unit. The impeller rotates the rotary unit and is adapted to be driven by water from the water inlet. The connector is mounted on and is fluidly communicated with the rotary unit. The spray head is mounted on and is fluidly communicated with the connector. The spray head is rotatable relative to the rotary unit so as to change an inclined position of the spray head.

Abstract: A water jet gun includes a gun-like body which has a handle portion and a transverse tubular housing portion enclosing a hollow plug. The tubular housing is provided with a first opening communicated with the handle portion and the hollow plug has a second opening to communicate with the first opening to form a flow passage. The second opening is tapered from one end thereof to another opposite end in the circumferential direction of the hollow plug so that the dimension of the flow passage is variable upon the rotation of said hollow plug. The hollow plug is further provided with a spout which provides water jets of different patterns.

Abstract: A multiple purpose water spray gun comprises: a main body, a revolving ring, a water control rod, a press trigger, a seal plate and an adjusting knob, wherein at the front end of the revolving ring, five nozzles of different types are arranged for various purposes. One of the nozzles is a rain-drop nozzle consisting of a central recessed hole where water is led in, a plurality of grooves which are radially disposed around the recessed hole and by each of which the water is conducted into a different large opening to then pass through a small hole to spray out as mist. The press trigger and the main body have matched lugs for direct pressing together to save assembling cost; leakage prevention rings are provided along the front and rear ends of the water control rod, to ensure perfectly tight seals.