Adjustment device for oscillating sprinkler

An oscillating sprinkler comprising:

• a base, an oscillating unit and a nozzle unit, the oscillating unit connected between two ends of the base and having a hollow tube which has a groove defined axially in an outside thereof, the nozzle unit located in the groove and having multiple flexible nozzles, multiple holes defined through an inner bottom of the groove and located corresponding to the nozzles, the holes communicating with an interior of the hollow tube, the nozzles extending through the holes respectively;
• the hollow tube having multiple combination paths defined radially in the outside thereof, the combination paths comprising first paths and second paths, the groove located between the first paths and the second paths, a distance between any two adjacent first paths being the same, a distance between any two adjacent second paths being the same, the distance between any two of the adjacent first paths being smaller than the distance between any two of the adjacent second paths, and a driving unit having a resilient wire, a top member and a bottom member, the top member having an opening which is defined by two long sides and two short sides, each of the two long sides having multiple notches defined in an inside thereof, the hollow tube being located between the top member and the bottom member, the resilient wire having a round cross section and being bent into continuous S-shaped portions, each S-shaped portion having two adjustment slots which are curved slots and open toward opposite directions, each adjustment slot being defined by an end portion and two extensions extending from two ends of the end portion, the resilient wire located in the opening of the top member and the end portions being engaged with the notches of the top member, the end portions movably located in the combination paths, the nozzles located in the adjustment slots respectively.