Planar design composing device

The utility model discloses a planar design composing device, including transverse ruler, transverse ruler's the both ends border department that descend on the surface has scale strip no. 1, still has perpendicular chi, and erects about the surface of chi lower extreme terminal surface that border department in both ends has scale strip two, transverse ruler and open and have slip connecting groove, erects the cooperation that the chi passes through trolley shoe and slip connecting groove, slidable mounting on transverse ruler, the trolley shoe includes the block, a side surface of block hasthe slider, through the cooperation of slider with slip connecting groove, the trolley shoe can slidable mounting on transverse ruler, the opposite side surface of block is the buckle, the backstop mouth is gone into including the card to the buckle, and the upper and lower both ends that the backstop mouth is located the buckle are respectively gone into to the card, the surface of buckle is located a card and goes into