Sand screening device

The invention is suitable for the field of building construction, and provides a sand screening device which comprises a rack. The sand screening main body is arranged on the rack; the transmission belt is arranged on the rack, is positioned below the sand screening main body and is used for receiving and conveying the sand grains screened by the sand screening main body; the feeding part is arranged on the rack, the feeding part is provided with a sand inlet and a sand outlet, and the sand outlet is connected with the inlet of the sand screening main body; one side of the shielding cover is hinged to the side edge of the sand inlet of the feeding part, and the shielding cover rotates to cover or open the sand inlet; the locking assembly is arranged on the opposite side of the connecting position of the shielding cover and the feeding piece and used for locking the shielding cover to the feeding piece. According to the sand screening device, the sand inlet of the feeding part can be shielded, rainwater or sun