Quick-connect clip-on connector

Female clip-on connector (1) adapted to cooperate with a male attachment end fitting (20) of the type with a central bush (26) and a flange (25), the connector (1) including on the one hand a rigid plastic material body (2) comprising on one side a tubular part (3) for connection to a pipe (40) and on the other side a part forming an open cylindrical cavity (4) adapted to receive at least the end of the bush (26) and on the other hand an elastic latch constituted by a single latch part (50) independent of the body (2), disposed transversely in a latch housing (6) fixed relative to the body (2) and placed in front of the opening of the cylindrical cavity (4) of the body so as to lock onto the back of the flange (25) of the end fitting once the latter is in place in the cylindrical cavity (4), said single latch part (50) being symmetrical and comprising two radially opposite curved jaws (52) adapted to be moved towards each other or away from each other and away from the axis of the body (2) and two radially opposite actuating parts (51) flush in a rest position with the external envelope of the body (2) and accessible to two opposite fingers of a user for actuating the jaws, the jaws (52) being spring-loaded into a close-together rest position in which they form a transverse abutment (59) at the rear of the flange (25) of the end fitting when the latter is in place, the jaws (52) enabling radially outward retraction of this transverse abutment (59) when they are pushed into a spread apart position by the actuating parts (51), characterized in that the two jaws (52) and the two actuating parts (51) act in a same direction transverse to the axis of the body, each actuating part (51), orthogonal to said transverse direction, being disposed facing a respective jaw (52), also orthogonal to said transverse direction, and being rigidly connected by a rigid connecting bar (53) oriented in said transverse direction to the other jaw (52), respective spring means (54) being disposed between the external and internal surface parts respectively of each jaw (52) and the facing actuating part (51) to continuously spring-load each jaw (52) towards its rest position in which the jaw (52) is close to the axis and in which the actuating part (51) is in its radially outermost position.