Concrete ultrasonic rebound comprehensive detection measuring area positioning device

The invention discloses a concrete ultrasonic rebound comprehensive detection measuring area positioning device, belongs to the technical field of bridge test detection, and aims to solve the problems that the accurate positioning effect on a detection measuring area is poor when a sound velocity frequency value of a highway bridge concrete prefabricated part is measured, so that the detection result has deviation, and the detection accuracy is poor. The device comprises two placing rails which are distributed in parallel, the top surfaces of the two placing rails are connected with a storage frame in a sliding mode, and extension frames penetrate through the inner walls of the two sides of the storage frame in a sliding mode; according to the invention, the extension mechanism, the unfolding mechanism, the moving mechanism and the turnover mechanism cooperate with each other to perform equal-height symmetrical positioning treatment on the laser transducer probes, the laser transducer probes on the two sides