Marketing teaching is with supplementary teaching board

The utility model discloses a marketing teaching is with supplementary teaching board, the on -line screen storage device comprises a base, the top fixedly connected with support column of base, one side fixedly connected with fixed column on support column top, the first connecting block of one end fixedly connected with of support column is just kept away from to the fixed column, first connecting block is through first pivot and first fixed block swing joint, fixedly connected with board on the first fixed block, the board bottom on the surface and be located the below fixedly connected with second fixed block of first fixed block. This marketing teaching is with supplementary teaching board is through setting up the effect of adjusting between pole, hollow post, spacing groove, gag lever post, dead lever, universal driving shaft, movable rod, first magnet and the second magnet for be convenient for adjust the angle of board, thereby make things convenient for the teacher to write,also make things convenie