Promotion screen of POS system uses adjusting device of angle

The utility model relates to a promotion screen of POS system uses adjusting device of angle sets firmly an adjustment subassembly to cover at the back of the body of a screen, again with the fixed arm pin joint of one year seat, this adjustment subassembly includes a backup pad, a fixed plate, and this fixed plate sets firmly at this back of the body lid, and these two relative pin joint portions of backup pad formation are formed with two slides that are used for supplying to wear to establish these pin joint portions on this fixed plate, makes the upper and lower gliding setting of this backup pad ability between the back of the body lid and this fixed plate of this screen, and the fixed arm pin joint of these pin joint portions of this backup pad and this year seat, through the support of this backup pad and these slides on the fixed plate, make the screen upper and lower removal change the use angle to this mesh that reaches the convenience of lifting operation POS system screen.