Ultrasonic water meter

The ultrasonic water meter comprises a meter head and a base meter pipeline arranged on the meter head in a penetrating mode, and a sound channel assembly is arranged in the base meter pipeline. The sound channel assembly is characterized in that the sound channel assembly comprises a central tube, a clamping tube and two sound wave reflection elements, the clamping tube wraps the periphery of the central tube, inserting grooves are formed in the front side and the rear side of the inner wall of the clamping tube, the two sound wave reflection elements are arranged on the left side and the right side of the central tube, and each sound wave reflection element is of a metal plate integrated stamping structure; the sound wave reflecting element is provided with a reflecting plate, shoulder parts and supporting legs, the shoulder parts and the supporting legs are located on the front side and the rear side of the reflecting plate, the extending direction of the supporting legs and the plane of the reflecting pla