Patent ID: 6494385
Filing Date: 2002-12-17
Classification: B05B,Y10S

Abstract:
A controlling device for a rotating sprinkler secured to a water pipe (60), the controlling device comprising:a sleeve (10) adapted to be firmly secured to a rotating sprinkler (50) at a first end of the sleeve (10) and to the water pipe (60) at a second end of the sleeve (10), the sleeve (10) having multiple trenches (15) defined in the sleeve (10); and a resisting edge (14) transversally formed in the sleeve (10); and a controlling set (20) comprising: a spring (22) mounted on the resisting edge (14) of the sleeve (10); a compressing block (21) mounted on the spring (22) at one end of the compressing block (21) and having an axle hole (211) defined in a center of the compressing block (21), a spring recess (212) defined in the end of the compressing block (21) to communicate with the axle hole (211) and receive part of the spring (22) inside, a cross-recess (213) defined in another end of the compressing block (21) and communicated with the axle hole (211), and multiple ridges (214) formed on an outer periphery of the compressing block (21) to match with the multiple trenches (15) of the sleeve (10) respectively so as to avoid rotation of the compression block (21) relative to the sleeve (10) and allow vertical movement of the compressing block (21) relative to the sleeve (10); a controller (23) combined with the compressing block (21) and having an axle tube (231) received in the axle hole (211) of the compressing block (21), a waterway (232) defined in the axle tube (231), a first inclined face (233) formed on a top edge of the axle tube (231), four arms (235) protruding from the axle tube (231) near the first inclined face (233) and resting inside the cross-recess (213) of the compressing block (21), each arm (235) having a curved surface (236) formed at a top face thereof, and at least one sub-waterway (234) defined in an outer periphery of the axle tube (231); and a rotator (24) synchronously rotated with the rotating sprinkler (50) and separably mounted on the controller (23), the rotator (24) having a channel (241) defined in the rotator (24) to communicate with the waterway (232) of the controller (23), a second inclined face (242) constructed on a bottom face toward the inclined face (23) to correspond to the first inclined face (233) of the controller (23), four stubs (244) formed at the bottom face of the rotator (24) to selectively touch the curved surface (236) of the controller (23); wherein when the stubs (244) contact with a top surface of the compressing block (21), the first inclined face (233) of the controller (23) and the second inclined face (242) are connected in a water-tight manner so that water flows through the waterway (232) only; when the stubs (244) contact with the curved surface (236) of the arms (235), the controller (23) and the compressing block (21) are pressed downwardly so that the first inclined face (233) and the second inclined face (242) are separated to construct a gap (A), whereby water flows through the waterway (232) and the at least one sub-waterway (234).