DEVICE FOR FILLING A LIQUID TANK

The invention concerns a device for filling a liquid tank (1) provided with a tubular connecting piece (2) extending outwards, said device comprising: a flexible filling hose (3) whereof the first end is inserted into the connecting piece (2) having on its outer surface a circumferential rib (4) arranged in the proximity of its first end; at least a cylindrical sealing joint (5) arranged coaxially between the hose (3) and the connecting piece (2), and whereof the axial position is located between the hose rib (4) and a circumferential ledge (9) inside the connecting piece; a clamping component (6), arranged coaxially outside the connecting piece (2), provided with locking means (7) for blocking it relative to the connecting piece (2), provided with a circumferential projection (8) oriented inwards, located in the proximity of its end furthest from the tank; said projection (8) of the clamping component (6) enabling to apply directly or indirectly axial pressure on the circumferential rib (4) of the hose towards the tank, thereby causing axial compression of the sealing joint (5) between the circumferential rib (4) of the hose and the ledge (9) inside the connecting piece (2) so as to provide a sealed connection between the connecting piece (2) and the hose (3).