Multi-nozzle cam driven sprinkler head

摘要

A sprinkler. A sprinkler nozzle assembly is coupled to a base for rotating movement. A stationary cam with cam surface engages a cam follower which open and close valves to regulate water flow as selected angles of rotation. In an embodiment, a pop-up sprinkler is provided, and the moving components are part of the riser. A turbine drive mechanism is coupled to an upper housing on which a plurality of sprinkler nozzle assemblies are affixed. The drive mechanism includes water driven impeller and a gear train adapted for operatively driving the upper housing, and associated sprinkler nozzle assemblies.

主权项

1. A sprinkler for watering a selected surface of a land parcel having a selected size and shape, said apparatus comprising:
a sprinkler base, said sprinkler base comprising a lower housing defined by a sprinkler base inner side wall, said sprinkler base comprising an inlet for receiving a pressurized water flow, an inlet turbine operably fixed in the base, a gear train having an output gear responsive to the inlet turbine, a mount supported by the base, a stationary cam shaft upwardly affixed from said mount, with at least one cam surface associated with the cam shaft, and an upper housing, said upper housing rotatably coupled to said sprinkler base, said upper housing driven by said output gear, said upper housing configured for receiving water from said base, said upper housing further comprising at least one sprinkler nozzle assembly, said at least one sprinkler nozzle assembly secured to and rotatable with the upper housing, the sprinkler nozzle assembly comprising a nozzle, a spring loaded valve, and a cam follower responsive to said cam surface to adjust the spring loaded valve between an open position wherein water passes therethrough, and a closed position wherein water flow is substantially prevented therethrough.