Telescopic chute tube of ship loader for loading bulk cargoes at port

The telescopic chute tube of the ship loader for port bulk loading comprises an upper tube and a lower tube, the bottom face of the upper tube is upwards provided with a circular-ring-shaped insertinggroove, the top of the lower tube is inserted into the circular-ring-shaped inserting groove, a fixing annular plate is arranged on the outer wall of the lower tube, and a telescopic corrugated tubeis arranged at the top of the fixing annular plate. A sliding ring plate is arranged at the top of the telescopic corrugated cylinder and connected outside the upper cylinder in a sliding and sleevingmode, a plurality of pull ropes are connected to the circumference of the top of the sliding ring plate, the tops of the pull ropes are connected with pulley assemblies on the ship loader, and a limiting ring plate is arranged on the outer edge of the bottom of the upper cylinder. The telescopic corrugated tube achieves stretching and retracting of the chute tube, meets transfer operation of materials of different heights,