Device for measuring perpendicularity in constructional engineering

The utility model relates to the technical field of constructional engineering measuring devices, and discloses a device for measuring perpendicularity in constructional engineering, which comprises a measuring device, and the measuring device comprises a base and a gradienter. According to the device for measuring the perpendicularity in the constructional engineering, the guide rail is installed on the side face of the base, the guide rail is connected with the transverse rod in a clamped mode, the laser lamp is installed on the sliding block, light emitted by the laser lamp penetrates through the transverse rod, the transverse rod is moved on the guide rail, the positions of the corners of the wall on the transverse rod are observed, scales are read, and therefore the perpendicularity of the wall is judged; the light of the laser lamp and the scales of the cross rod assist a measurer in reading, the accuracy of a measurement result is improved, the gradienter is utilized to assist the measuring device in f