Hole gas cutting device for oval hand hole reinforcing ring of boiler header

The utility model relates to the technical field of boiler production equipment, in particular to a hole gas cutting device for an oval hand hole reinforcing ring of a boiler header, which comprises a frame, a header body, a gas cutting machine, a cutting gun and a support mechanism, and the support mechanism comprises two groups of rollers I; an explorator is arranged in front of the header body and comprises a first explorator block and a second explorator block, and the outer side edges of the first explorator block and the second explorator block jointly form an ellipse; the gas cutting machine is slidably arranged on the guide rail, the guide rail comprises a horizontal part and an inclined part, a connecting rod is arranged on the gas cutting machine and comprises a vertical rod, a first transverse rod and a second transverse rod, one end of the first transverse rod is fixed to the vertical rod, and the cutting gun is fixed to the other end of the first transverse rod. The other end of the second cross