초록 ▼

A sprinkler head includes a sprinkler body having an inlet bore at one end, and a coupling element at an opposite end adapted to connect the sprinkler body to a water deflector plate. A multi-nozzle shuttle supports at least two nozzles and is attached to the sprinkler body axially between the inlet

A sprinkler head includes a sprinkler body having an inlet bore at one end, and a coupling element at an opposite end adapted to connect the sprinkler body to a water deflector plate. A multi-nozzle shuttle supports at least two nozzles and is attached to the sprinkler body axially between the inlet bore and the coupling element for swinging pivotal movement between two nozzle-installed positions. The multi-nozzle shuttle may also be provided with a shut-off surface portion for shutting off flow through the sprinkler body when the multi-nozzle shuttle is moved to a shut-off position. The shuttle may be moved manually or by a power actuator.

대표청구항 ▼

1. A sprinkler head comprising: a sprinkler body having a first flow passage defined by a bore having an inlet end and an outlet end; anda multi-nozzle shuttle supporting at least two nozzles and provided with openings aligned with second flow passages in said at least two nozzles, respectively; sai

1. A sprinkler head comprising: a sprinkler body having a first flow passage defined by a bore having an inlet end and an outlet end; anda multi-nozzle shuttle supporting at least two nozzles and provided with openings aligned with second flow passages in said at least two nozzles, respectively; said multi-nozzle shuttle mounted on said sprinkler body for swinging pivotal movement between either of two nozzle-installed positions wherein one of said second flow passages in a selected one of said at least two nozzles is aligned with said first flow passage at said outlet end of said bore,wherein said multi-nozzle shuttle includes a shut-off surface located between said openings, and wherein said multi-nozzle shuttle is movable to a shut-off position where said shut-off surface engages said outlet end of said bore,wherein said sprinkler body includes a nozzle guide platform provided with a center opening axially aligned with said bore and a pair of laterally-spaced, upstanding guide ribs flanking said center opening for guiding each of said at least two nozzles into either of said two nozzle-installed positions. 2. A sprinkler head comprising: a sprinkler body having a first flow passage defined by a bore having an inlet end and an outlet end; anda multi-nozzle shuttle supporting at least two nozzles and provided with openings aligned with second flow passages in said at least two nozzles, respectively; said multi-nozzle shuttle mounted on said sprinkler body for swinging pivotal movement between either of two nozzle-installed positions wherein one of said second flow passages in a selected one of said at least two nozzles is aligned with said first flow passage at said outlet end of said bore, wherein said multi-nozzle shuttle is supported on pivot pins received in pivot bosses provided on said sprinkler body and said multi-nozzle shuttle, respectively. 3. The sprinkler head of claim 1 wherein said multi-nozzle shuttle includes a nozzle support platform provided with a pair of nozzle holders on one side of said nozzle support platform aligned with said openings, and wherein said shut-off surface is on an opposite side of said nozzle support platform. 4. The sprinkler head of claim 3 wherein said outlet end of said bore is provided with a seal adapted to engage said shut-off surface when said multi-nozzle shuttle is in the nozzle shut-off position, and to seal about said openings when said multi-nozzle shuttle is in either of said nozzle-installed positions. 5. The sprinkler head of claim 1 wherein said multi-nozzle shuttle is releasably retained in at least said two nozzle-installed positions. 6. The sprinkler head of claim 1 wherein said at least two nozzles have different orifice diameters. 7. The sprinkler head of claim 3 wherein standards extend from said nozzle-guide platform and connect to an upstream end of said sprinkler body. 8. The sprinkler head of claim 7 wherein at least two of said standards are diametrically-opposed and comprise a center section and a pair of open-wing sections extending in opposite directions from said center section. 9. The sprinkler head of claim 8 wherein each of said diametrically-opposed standards is provided with a retention tab in said center section engageable within any of three notches provided in said multi-nozzle shuttle, said three notches located so as to correspond to said nozzle shut-off position and said two nozzle-installed positions. 10. A sprinkler head comprising: a sprinkler body having a first flow passage defined by a bore having an inlet end and an outlet end; anda multi-nozzle shuttle including a nozzle support platform supporting a pair of nozzles on one side of said nozzle support platform, said multi-nozzle shuttle supported on said sprinkler body for swinging pivotal movement in one direction to a first nozzle-installed position where one of said pair of nozzles is aligned with said flow passage, and in an opposite direction to a second nozzle-installed position where the other of said pair of nozzles is aligned with said flow passage,wherein said multi-nozzle shuttle is provided with a shut-off surface between said pair of nozzles on an opposite side of said nozzle support platform, said multi-nozzle shuttle movable to a nozzle shut-off position between said first nozzle-installed position and second nozzle-installed position, and wherein said multi-nozzle shuttle is releasably retained in said nozzle shut-off position and in said first and second nozzle-installed positions,wherein said multi-nozzle shuttle is provided with a pair of nozzle holders on said one side thereof, said nozzle support platform provided with openings aligned with second flow passages, respectively, in said pair of nozzles, and each of said pair of nozzle holders comprises a support hub and at least two resilient support tabs radially spaced from said support hub. 11. A sprinkler head comprising: a sprinkler body having a first flow passage defined by a bore having an inlet end and an outlet end; and a multi-nozzle shuttle including a nozzle support platform supporting a pair of nozzles on one side of said nozzle support platform, said multi-nozzle shuttle supported on said sprinkler body for swinging pivotal movement in one direction to a first nozzle-installed position where one of said pair of nozzles is aligned with said flow passage, and in an opposite direction to a second nozzle-installed position where the other of said pair of nozzles is aligned with said flow passage, wherein said sprinkler body includes a nozzle guide platform provided with an aperture aligned with said flow passage and a pair of laterally-spaced, upstanding ribs for guiding each of said pair of nozzles into said first and second nozzle-installed positions, respectively. 12. A sprinkler head comprising: a sprinkler body having a first flow passage defined by a bore having an inlet end and an outlet end; anda multi-nozzle shuttle including a nozzle support platform supporting a pair of nozzles on one side of said nozzle support platform, said multi-nozzle shuttle supported on said sprinkler body for swinging pivotal movement in one direction to a first nozzle-installed position where one of said pair of nozzles is aligned with said flow passage, and in an opposite direction to a second nozzle-installed position where the other of said pair of nozzles is aligned with said flow passage, wherein said multi-nozzle shuttle is provided with laterally-spaced, upstanding ears formed to receive pivot pins extending between said upstanding ears and opposite sides of said sprinkler body. 13. The sprinkler head of claim 10 wherein a seal is provided at said outlet end of said bore, said seal adapted to engage said shut-off surface when said multi-nozzle shuttle is in said shut-off position, and to seal about said openings, respectively, when in either of said two nozzle-installed positions. 14. A sprinkler head comprising: a sprinkler body having a center hub having a first flow passage defined by a bore having an inlet end and an outlet end;a multi-nozzle shuttle adapted to support a pair of nozzles, said multi-nozzle shuttle supported on said center hub for pivoting movement about a horizontal axis between a nozzle shut-off position and either of two nozzle-installed positions, said shuttle provided with a nozzle support platform formed with a shut-off surface on an upper side of said nozzle support platform for shutting off flow through said bore when said multi-nozzle shuttle is moved to the nozzle shut-off position;a pair of nozzle holders on an underside of said nozzle support platform; anda pair of positioning arms projecting below said nozzle support platform, said pair of positioning arms each formed on respective lower edges with three notches corresponding to said nozzle shut-off position and said two nozzle-installed positions, said three notches on each positioning arm adapted for selective engagement with a retention tab located on opposite sides of said sprinkler body. 15. The sprinkler head of claim 14 wherein said sprinkler body includes a nozzle guide platform provided with an aperture aligned with said bore, said nozzle guide platform connected to said center hub by a pair of diametrically-opposed standards, each standard supporting one of said retention tabs. 16. The sprinkler head of claim 15 wherein said standards are formed with open frames extending in opposite directions from respective center sections, said retention tabs located in said center sections. 17. A sprinkler head comprising: a sprinkler body having a center hub including a first flow passage defined by a bore having an inlet end and an outlet end;a multi-nozzle shuttle attached to said sprinkler body supporting first and second nozzles located downstream of said bore for swinging pivotal movement between at least a first nozzle-installed position where said first nozzle is aligned with said bore and a second nozzle-installed position where said second nozzle is aligned with said bore; anda power actuator arranged to move said multi-nozzle shuttle between at least said first nozzle-installed position and said second nozzle-installed position. 18. The sprinkler head of claim 17 wherein said power actuator comprises a pneumatic or hydraulic cylinder. 19. The sprinkler head of claim 17 wherein said power actuator comprises a solenoid or an electric motor. 20. The sprinkler head of claim 17 wherein said power actuator is a one-, two- or three-way actuator. 21. The sprinkler head of claim 17 wherein said power actuator is connected at one end to said multi-nozzle shuttle and at an opposite end to said center hub. 22. The sprinkler head of claim 21 wherein a bracket assembly extends between said center hub and said power actuator, and wherein said power actuator is pivotally connected to opposite ends of said bracket assembly. 23. The sprinkler head of claim 21 wherein one or more springs is connected between said sprinkler body and said multi-nozzle shuttle to hold said multi-nozzle in either of said first and second positions upon deactivation of said power actuator. 24. The sprinkler head of claim 17 wherein said power actuator is controlled by a microprocessor via wired or wireless communication. 25. The sprinkler head of any of claim 1, 10, 14 or 17 wherein said multi-nozzle shuttle is provided with flow-rate indicia visible to a user in either of the two nozzle-installed positions. 26. The sprinkler head of any of claim 1, 11 or 15 wherein said sprinkler body supports a water deflection plate downstream of said nozzle guide platform. 27. An irrigation system comprising: a plurality of sprinkler heads supported on an irrigation apparatus and independently controlled by a controller, each sprinkler head comprising a sprinkler body formed with a first flow passage defined by a bore having an inlet end and an outlet end;a multi-nozzle shuttle attached to said sprinkler body supporting first and second nozzles located downstream of said bore for swinging pivotal movement between at least a first nozzle-installed position where said first nozzle is aligned with said bore and a second nozzle-installed position where said second nozzle is aligned with said bore; anda power actuator connected between said sprinkler head and said multi-nozzle shuttle, said power actuator and an associated control valve operatively connected to the controller, said power actuator adapted to move said multi-nozzle shuttle between at least said first nozzle-installed position and said second nozzle-installed position in response to a command received from said controller.