NOZZLE SUPPORT DEVICE HAVING A ROTARY NOZZLE-CARRYING HEAD

摘要

The invention concerns a nozzle support device (10) comprising a body (12) that has a fluid inlet passage (24) and at least one outlet passage (26), and that comprises a revolving section that forms a hub (16) that extends around a rotational axis (A), a nozzle-carrying head (14) that is rotatably mounted on the hub (16) of the body (12) around the rotational axis (A), and that is designed to simultaneously carry at least two nozzles, and immobilising means (74, 86) for immobilising the nozzle-carrying head (14) in rotation on the body (12) in a plurality of predefined positions, characterised in that the device (10) is provided with a mechanism for rotating the nozzle-carrying head (14) comprising an oscillating drive member (90) provided with at least one retractable drive pawl that has one free end designed to push the drive teeth in succession.

主权项

1. A nozzle-carrying device comprising:
a body which has a fluid inlet passage and at least one outlet passage, and which includes a revolution section forming a hub that extends around an axis of rotation, a nozzle-carrying head which is rotatably mounted on the hub of the body around the axis of rotation, and which is designed to simultaneously carry at least two nozzles, and immobilizing means for rotatably immobilizing the nozzle-carrying head on the body in a plurality of predetermined positions, in at least some of them one of the nozzles is linked to the outlet passage of the body,wherein the device is equipped with a mechanism for driving the nozzle-carrying head in rotation comprising:
a plurality of drive teeth which are regularly arranged around the axis of rotation on the nozzle-carrying head, a drive element equipped with at least one retractable drive pawl which has a free end suitable for successively pushing the drive teeth, the drive element being mounted in oscillatory manner on the body, around the axis of rotation, according to a forward motion during which the pawl incrementally drives the nozzle-carrying head to a predetermined position by cooperation with one of the drive teeth, and a return motion during which the pawl is retracted, an actuator including an actuating rod which is movably connected on the drive element for driving the drive element in oscillatory motion.