Small automatic sand screening device

The utility model discloses a small automatic sand screening device which comprises a machine frame, a sand screening net arranged on the top of the machine frame, a motor arranged on the machine frame and enabling the machine frame to vibrate, and a conical funnel arranged at the bottom of the machine frame. The motor is vertically arranged, and an output shaft of the motor is connected with a balancing weight which is horizontally arranged. The device is simple in structure and small in size; the mesh number of the sand screening net can be changed at will according to requirements, and installation is convenient; mechanical automatic sand screening is achieved, time is effectively saved, and working efficiency is improved. 本实用新型公开了一种小型自动筛沙装置，包括机架、设于所述机架顶部的筛沙网、设于所述机架上使所述机架振动的电机，以及设于所述机架底部的锥形漏斗；所述电机竖直设置，所述电机的输出轴上连接有水平设置的配重块。本实用新型结构简单，体形小巧；筛沙网目数可根据需求进行随意更换，且安装方便；实现机械自动筛沙，有效节约了时间，提高了工作效率。