| 摘要 |
A ball-type water sprinkler includes a ball (22) freely movable within a chamber (16) formed in a rotor (12) and having two water inlets (14a, 14b) oriented to direct the water to flow circumferentially of the chamber (16) in opposite directions, an impact element (24) fixed to the rotor (12) so as to be impacted by the ball (22) and to rotate the rotor (12) according to the direction of rotation of the ball (22); a fixed stop (28) fixed with respect to a mounting device; and a presettable stop (30) circumferentially presettable with respect to the fixed stop (28) and carried by a rotatable ring (32) interposed between the mounting device (4) and the rotor (12). <IMAGE> |
