Ultrasonic water meter pipe core structure and shell

The utility model discloses an ultrasonic water meter pipe core structure and a shell, which comprise a pipe core body. An exit port; the first reflecting part is arranged corresponding to the incident port; the second reflection part is arranged corresponding to the exit port; the antenna also comprises a third reflection part. And an ultrasonic signal enters from the entrance port, is reflected by the first reflection part, the third reflection part and the second reflection part in sequence, and then is emitted from the exit port. According to the utility model, an ultrasonic signal is subjected to three-section reflection through the first reflection part, the third reflection part and the second reflection part, so that the inclination angles between the first reflection part and the third reflection part and the tube core body are changed, the flow field is improved, the pressure loss is reduced, and the measurement precision is improved. 本实用新型公开一种超声波水表管芯结构及壳体，包括管芯本体，所述管芯本体上设有：入射口；出射口；第一反射部，对应于入射口设置；第二反