Sand screening device for building construction

The sand screening device for building construction comprises a bottom groove and a screening groove, the screening groove is formed in the upper portion of the bottom groove, a screen is arranged at the bottom of the screening groove, supporting plates are arranged on the three inner wall faces of the bottom groove, a rotating rod is arranged on the other inner wall face of the bottom groove, and the bottom of the screening groove is connected with a bottom frame through a spring. The bottom frame is arranged on the supporting plate, a rotating sleeve is arranged on one side of the bottom frame and arranged on the rotating rod in a penetrating mode, a motor is arranged on one side of the bottom groove, a cam is connected to the motor, and the cam makes contact with the edge of the screen groove. The utility model aims to provide the sand screening device for building construction, so that sand grains can be fully screened, and the sand grains can be conveniently discharged. 本实用新型公开了一种建筑施工用筛沙装置，包括底槽和筛槽，筛槽设置在底