Nozzle monitoring device

The utility model belongs to the technical field of shot blasting, and discloses a nozzle monitoring device. The nozzle monitoring device comprises an angle monitoring assembly and a laser range finder, the angle monitoring assembly comprises a base, a connecting rod, an angle scale and a gradienter, the base is provided with a reference mark, the connecting rod is connected with a nozzle, the angle scale is rotatably connected to the base, and the gradienter is connected to the angle scale. The reference mark on the base can be aligned with any scale line of the angle scale, the numerical value indicated by the reference mark is the nozzle angle, whether the shot blasting angle changes or not can be judged by observing the gradienter, and the laser range finder is detachably connected to the base and can monitor the shot blasting distance. The nozzle monitoring device is used for monitoring the shot peening angle and the shot peening distance of the nozzle when the shot peening equipment is subjected to pilo