Concrete thickness measurer

A concrete thickness measurer relates to the technical field of civil engineering. The problems that in the pouring process of a cast-in-place floor, the floor pouring thickness is difficult to control, the thicknesses of floors in different areas of the same floor are different, the floor thickness is generally difficult to control in the construction process, the thickness of the poured floor cannot be measured, and therefore whether the design requirement of a building is met or not cannot be judged are solved. A horizontal ruler is arranged in the middle of the top end face of the main measuring rod, the main measuring rod is sleeved with a sleeve, a circular boss is machined in the middle of the outer surface of the sleeve, a threaded hole is formed in the middle of the end face of the circular boss, and a locking nut is arranged in the threaded hole. The bottom of the sleeve is inserted into the through hole in the hexagonal baffle, the outer surface of the bottom end of the sleeve is fixedly connected