Temporary plugging device for pipe orifice

The utility model belongs to the technical field of pipeline construction protection, and solves the problems that steel at a pipe orifice needs to be polished again after being welded, a steel plate is less in reuse times, and potential safety hazards exist in welding during raining. The temporary pipe orifice plugging device comprises a plugging plate abutting against the outer end of a pipe orifice, the plugging plate is vertically arranged, an insertion plate clamp is arranged on the plugging plate, an insertion plate is correspondingly inserted into the insertion plate clamp, an arch-shaped notch matched with the diameter of the pipe orifice is formed in the lower middle portion of the insertion plate, and the insertion plate is clamped on the pipe orifice and is parallel to the plugging plate. The bottom of the insertion plate is provided with a tip. The utility model has the advantages of simple and compact structure, no need of welding and plugging the pipe orifice, high repeated utilization rate and