Anti-collision device of flaw detection equipment

The utility model provides an anti-collision device of flaw detection equipment. The structure of the anti-collision device comprises two fixed frames with same shapes, connecting plates and bottom plates, wherein the two fixed frames are vertically connected to corresponding sides of the two bottom plates, respectively; the two sides between the two fixed frames are respectively connected with each other by the connecting plates; circular through holes with diameters of 300 mm are respectively formed in the two fixed frames; bolt holes are respectively formed on two sides of the bottom plates; and at least one pair of tie bars for enhancing strength is arranged at correspondingly connected parts of the two fixed frames and the two bottom plates. The anti-collision device of the flaw detection equipment, provided by the utility model, has the advantages as follows: through the adoption of the anti-collision device, a movable inserting board is inserted during manufacturing a steel pipe with external diameter