High-volume, part-circle sprinkler head

摘要

A high-volume sprinkler head includes a barrel with a nozzle; a fixed portion and a relatively movable portion adapted for pivoting movement relative to the fixed portion. The barrel is mounted on an upper support base rotatable on a lower stationary base in opposite directions through an arc about a vertical axis. A fluid-operated actuator pivots the relatively movable portion of the barrel relative to the fixed portion of the barrel between first and second reaction angles that cause the barrel and the annular upper support base to rotate in opposite directions, about the substantially vertical axis, respectively, when a stream is emitted from the nozzle. A three-way valve in combination with adjustable stops on the stationary base may be used to pilot the actuator, with the adjustable stops determining the arcuate extent of the rotational movement of the sprinkler head.

主权项

1. A high-volume sprinkler head comprising:
a barrel having a nozzle at one end thereof, said barrel having a fixed portion and a relatively movable portion adapted for pivoting movement relative to said fixed portion, said barrel mounted on an annular upper support base rotatably supported on a lower stationary base for rotation in opposite directions through an arc about a substantially vertical axis; an actuator arranged to pivot said relatively movable portion of said barrel relative to said fixed portion of said barrel between predetermined first and second reaction angles that cause said barrel and said annular upper support base to rotate in opposite directions, about said substantially vertical axis, respectively, when a stream is emitted from said nozzle; first and second magnets supported at circumferentially-spaced locations about an edge of said lower stationary base, said pair of magnets having opposite polarities; and a magnetic valve mounted on said upper support base in fluid communication with said actuator, said magnetic valve adapted to cause fluid to propel said actuator to move said movable barrel portion to said predetermined first reaction angle when said magnetic valve is proximate to said first magnet, and further adapted to cause fluid to propel said actuator to move said movable barrel portion to said predetermined second reaction angle when said magnetic valve is proximate to said second magnet.