Sand dredger sand dredger sand screening assembly

The utility model relates to the technical field of sand dredgers, in particular to a sand dredger sand screening assembly. According to the technical scheme, the device comprises a ship body, a sand pump, a sand collecting box, a baffle, a frame and a supporting plate, the sand collecting box is fixed to the middle of one end of the upper end face of the ship body, a through groove is formed in the middle of the lower end of one side of the sand collecting box, a limiting strip is fixed to the position, located on the outer side of the through groove, of the outer side of the sand collecting box, and the baffle is movably installed in the limiting strip; drainage pipes are installed in the middles of the lower ends of the two sides of the sand collecting box in a communicating mode, filter screens are fixed to the positions, located at the two ends of the drainage pipes, in the sand collecting box, a second limiting frame is fixed to the inner side of the upper end of the sand collecting box, a first limitin