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Automatic water inlet switching device for an oscillating sprinkler

  • US 20070119978A1
  • Filed: 02/08/2006
  • Published: 05/31/2007
  • Est. Priority Date: 11/30/2005
  • Status: Active Grant
First Claim
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1. An automatic water inlet switching device for an oscillating sprinkler comprising a sprinkle control unit which drives a sprinkle means to produce angular swinging movement;

  • said sprinkle control unit having a blade-equipped gear transmission set housed therein and working together with a water inlet switching device having an operation unit and a movable swinging seat;

    said movable swinging seat being provided with two water stop ends at the bottom thereof, in opposite to two water outlet ports defined on a coupling unit and one of said water outlet ports being selectively blocked by one of said water stop ends in operation; and

    a concaved bounded space having push faces defined therein and placed at the center of the top of said movable swinging seat to operate in cooperation with an action stick of the operation unit which comprises an drive rod in connection to said action stick operable inside said bounded space so as to move in linkage with said action stick;

    whereby as said sprinkle unit swings to a limiting position set up by a restraint connector in the water inlet switching operation the swinging angle of said action stick is limited within said bounded space and said action stick will move against said push face of said bounded space so as to gradually produce a built-up force to instantaneously spring away said movable swinging seat no matter what the water pressure is high or low in operation.

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