Novel adjustable supporting device for constructional engineering

The utility model discloses a novel adjustable supporting device for constructional engineering, and relates to the technical field of constructional engineering. The baffle plate is attached to the outer surface of a wall body for supporting, and the bottom plate is arranged on the baffle plate and is detachably fixed with the baffle plate. A baffle and a bottom plate are matched to abut against the wall face, then a motor is started, an output shaft of the motor on a fixing mechanism drives a rotating rod to rotate, first threaded sleeve rods on two first threaded rods drive sliding blocks to slide in the length direction of sliding grooves under the cooperation of lantern rings and connecting rods under the effect of a belt, and the sliding blocks are driven to slide in the length direction of the sliding grooves; and when the first threaded sleeve rod moves to a certain position, a plurality of conical thorns on the first threaded sleeve rod are inserted into through holes reserved in the ground, so that