Draw water transfer device based on inverted siphon technique of piloting a ship into harbour

The utility model provides a draw water transfer device based on inverted siphon technique of piloting a ship into harbour, the transfer line has been inserted to the lateral wall of basin, the one end of transfer line is connected with the centrifugal pump, the one end clamp connection of centrifugal pump has an inverted siphon, an inverted siphon's one end clamp connection has the 2nd inverted siphon, the 2nd inverted siphon's outer wall cover is equipped with the support, wherein the support is located the lateral wall top of ditch, and the 2nd inverted siphon's one end outer wall has cup jointed flexible rubber hose, the flexible rubber hose interpolation has the 3rd inverted siphon, wherein the 3rd inverted siphon lies in the ditch, the 3rd inverted siphon outer wall cover is equippedwith the spring, the 3rd inverted siphon's outer wall cover is equipped with the sleeve pipe, and a sheathed tube end screw thread connection has sand prevention net, sheathed tube outer wall fix with screw has fixed cover,