Sprinkler water flow switching device

A sprinkler water flow switching device assembled in a movable seat of a water sprinkler, the movable seat internally divided by a partition into an impeller chamber and a gear chamber, the partition having a first water channel and a second water channel connecting the impeller chamber and the gear chamber;

• the sprinkler water flow switching device comprising:
• a projection member provided on the partition and located between the first water channel and the second water channel;
• a seesaw plate having a pivot at the middle of two lateral sides thereof, the seesaw plate located at a position corresponding to inlet sections of the first water channel and the second water channel, and a surface of the seesaw plate facing the inlet sections being defined as a blocking surface, the blocking surface having a groove at the middle thereof, the groove comprising a first sidewall, a second sidewall and a bottom wall which is connected between the first sidewall and the second sidewall, wherein a top end of the projection member is positioned in the groove;
• and
• a driving lever comprising a rod and a pivot portion, the rod is configured to oscillate in an extended and restricted manner in the gear chamber, the pivot portion is disposed on an end of the rod corresponding to the seesaw plate, the pivot portion is provided with two pivot holes, and opposing ends of the pivot of the seesaw plate are respectively pivoted in the two pivot holes;
• wherein oscillation of the driving lever actuates movement of the seesaw plate to displace its groove on the projecting member such that when the first side wall or the second side wall is leaned against the top end of the projection member, the top end of the projection member will be supported at an eccentric position of the seesaw plate so that the seesaw plate can selectively close the inlet section of the first water channel or the inlet section of the second water channel with the blocking surface.