Patent ID: 8220726
Filing Date: 2012-07-17
Classification: B05B,Y10T

Abstract:
1. An adjustable module spray head comprising a module core unit to spray water flowers in various watering modes, the module core unit further comprising a holder including a passage to flow water and two symmetrical slots in communication with the passage to flow water outward; a distributing set operated to rotate relative to an outflow side of the holder and including a plurality of sets of inlets, each set having two symmetrical inlets arranged around a concentric central point of the distributing set; the distributing set also including a plurality of outlets disposed on an outflow side thereof, and a plurality of chambers, each communicating with the plurality of sets of inlets and the plurality of outlets so that water from each set of inlet flows through one of the plurality of chambers corresponding to the each set of inlet to be sprayed outward from each outlet in different watering modes; two plugs disposed to the slots of the holder to abut against an inflow side of the distributing set, and each plug having an opening formed therein so that when the distributing set rotates, the opening of the each plug communicates with one of the plurality of sets of inlets to guide water from the holder to each inlet relative to the opening; a rotatable positioning structure fixed between the holder and the distributing set and including a levering pin, a first receiving groove, a second receiving groove, and a plurality of engaging orifices located in a first rotary zone and a plurality of engaging orifices in a second rotary zone; wherein the first and the second receiving grooves are symmetrical to each other, and between any two adjacent engaging orifices in the first zone is formed a first angle, between two adjacent engaging orifices in the second rotary zone is formed a second angle equal to ½ of the first angle, and any one of the plurality of engaging orifices in the first rotary zone is symmetrical to one of the plurality of engaging orifices in the second rotary zone so that the levering pin is installed to one of the first receiving groove and the second receiving groove, as the levering pin is installed to the first receiving groove, the levering pin is retained with each of the plurality of engaging orifices in the first rotary zone with rotation of the distributing set to generate a plurality of single watering modes; as the levering pin is installed in the second receiving groove, the levering pin is retained with each of the plurality of engaging orifices in the second rotary zone with rotation of the distributing set to generate a plurality of single and double watering modes; an adjustable levering assembly fixed between the holder and the distributing set and including a plurality of stators and a rotor; wherein the rotor is limited to rotate between two selected stators so that the levering pin rotates between at least two engaging orifices in the first rotary zone or between at least three engaging orifices in the second rotary zone; as at lease one stator is removed before assembling the holder and the distributing set to increase a rotating angle of the rotor, the levering pin is limited to rotate in the first rotary zone or in at least one engaging orifice of the second rotary zone until all engaging orifices of the first rotary zone or all engaging orifices of the second rotary zone are covered, hence the plugs are controlled at least three different angles to communicate with the inlets, thereby obtaining three different watering levels.