Convenient track for calibration of ultrasonic measuring instrument

The utility model discloses a convenient track for calibration of an ultrasonic measuring instrument, which comprises a track, a movable base arranged on the track, four supporting structures mounted on the track, a rotating structure mounted on the movable base, a sliding structure mounted on the rotating structure, and a clamping structure mounted on the sliding structure. Through the arrangement of the rail, the sliding rod, the clamping plate and other structures, when a detection position needs to be measured, an ultrasonic measuring instrument is flatly placed on the shelf and clamped by the clamping plate, the rail is placed on the ground, and the sliding rod slides on the fixed rod, so that the position of the rail can be timely adjusted to be parallel to the ground all the time; the laser beam of the ultrasonic measuring instrument can be perpendicular to the detected position all the time, the detection accuracy is greatly improved, meanwhile, the motor rotates to drive the threaded rod to rotate so