The utility model discloses a hand-drawn paper auxiliary device of construction, relates to the technical field of hand-drawn building drawing, including box, both sides in the inside of box are fixedly connected with and place the box, the inside middle part fixed mounting of box has the adjusting mechanism, the rear side hinged of box has the box cover. The utility model adopts the above structure, and the adjusting mechanism that the present device sets brings great flexibility and convenience, and the user operates the
handle and drives the screw rod to rotate, and the sliding block slides in the guide rail, and the
drawing board is turned over to the up to the driving guide plate, and the angle can be adjusted flexibly to satisfy different drawing needs, after using, pulling operation
handle can make the sliding block reset, and the
drawing board is placed in the box, and the box cover is closed and is locked the box lock, and the operation
handle is stored in the strip slot, and the magnetic block
magnetism attracts the operation
handrail, and it is convenient to carry, no matter in the
studio, outdoor or other places, can satisfy the demand of the drawing person.