Ultrasonic detection probe for small-bore pipeline

The utility model belongs to an ultrasonic detection probe and particularly relates to the ultrasonic detection probe for a small-bore pipeline. The ultrasonic detection probe comprises a probe main body, a joint, a piezoelectric wafer and a wire focusing lens and is characterized in that the probe main body adopts a cuboid wedge, the lower end surface of the probe main body is an arc surface with a radian Phi 70-Phi 89 mm, and the rear end surface of the probe main body is fixedly connected with the joint; and the probe main body is internally provided with the piezoelectric wafer and the wire focusing lens, the piezoelectric water is 4 mm -5 mm away from the front end surface of the probe main body, and the refraction angle of the piezoelectric wafer and the horizontal plane is 68-72 DEG. The ultrasonic detection probe for the small-bore pipeline adopts higher probe frequency and bigger size of the piezoelectric wafer and selects the angle of the probe and the wire focusing technology in an optimized way, t