Construction surface flatness detector

Abstract

The present disclosure relates to the field of building construction, in particular to construction detection equipment. The present disclosure relates to a construction surface flatness detector, which comprises a housing mounted on a base. An inclination adjustment mechanism, a levelness calibration unit, a height adjustment mechanism and a rotation mechanism are mounted between the housing and the base; a pair of laser line projecting units for emitting laser lines in parallel is symmetrically mounted at two ends of the housing; a certain included angle is formed between laser sectors projected by the pair of laser line projecting units; and intersecting lines of the laser sectors are located on a horizontal plane where the base is located. According to the present disclosure, the line projection is performed on a construction surface by a pair of the laser line projecting units, which project laser lines in parallel and form projected sectors with a certain included angle; and intersecting lines are overlapped on the construction surface by controlling the included angle of the sectors and the height of the laser line projecting units relative to the construction surface, so that the flatness of the construction surface can be identified intuitively through the bifurcation of a pair of lasers, and the detection speed is high; and concave-convex values can be directly obtained after a specific angle is selected as the included angle of the sectors, to further improve the detection performance.