Steel skeleton plastic composite pipe and injection mold

The utility model relates to a steel framework plastic composite pipe which comprises a steel framework and a plastic pipe attached to the steel framework. The steel framework is of a net-shaped frame body structure formed by winding and welding warp steel wires and weft steel wires. An annular groove is formed in the end face of a pipe opening of the steel framework plastic composite pipe, and a layer of wrapping type flat sealing structure is formed on the outer side of the annular groove in an injection molding mode. The flat sealing structure comprises a splicing piece and an embedding part fused with the annular groove; wrapping bodies are formed on the inner side walls, facing the steel skeleton plastic composite pipe, of the splicing pieces; by adopting an inner coating type injection molding flat sealing mode, after the end face of the steel framework plastic composite pipe is subjected to injection molding, a polyethylene raw material and the end face of the steel framework plastic composite pipe can