Small-diameter pipe seat fillet weld scanning device

The utility model relates to a small-diameter pipe seat fillet weld scanning device. A wedge holder, a circular arc-shaped connecting band and a detector holder are connected to form the small-diameter pipe seat fillet weld scanning device; the circular arc-shaped connecting band is a cambered plate, magnetic rollers are mounted on the cambered plate, and both ends of the cambered plate are provided with connecting holed lugs; the detector holder is a square frame formed by aluminium profiles, the bottoms of two sides of the frame are provided with small-diameter rollers, the bottoms of the other two sides of the frame are provided with concave arc-shaped surfaces, the frame is provided with transverse through holes, a detector is fixed on the transverse through holes of the frame by screws, and the small-diameter rollers of the frame are in rolling contact with the surface of a detected small-diameter pipe seat. The small-diameter pipe seat fillet weld scanning device can effectively bring the detector as a detecting instrument into tight contact with a detected small-diameter pipe seat fillet, moreover, the small-diameter pipe seat fillet weld scanning device can be moved flexibly, and ensures the tight contact and coupling between the detector and the detected small-diameter pipe seat fillet during motion, detection is accurate, and the small-diameter pipe seat fillet weld scanning device is convenient to use, and increases the efficiency and quality of detection.