Embedded metal bottle opening structure of IV-type hydrogen storage bottle

The invention provides an embedded metal bottle opening structure of an IV-type hydrogen storage bottle. The embedded metal bottle opening structure comprises a valve seat, a plastic liner, a pressing cover and a winding layer; the valve seat is provided with a valve seat bottleneck and a valve seat shoulder, and the valve seat is connected with a bottle valve through internal threads; external threads and a sealing groove are formed in the outer cylindrical surface of the valve seat bottleneck; a valve seat shoulder conical surface is arranged on the outer edge of the valve seat shoulder; the valve seat is connected with cover the pressing through the external threads, and an annular cavity is formed between the pressing cover shoulder and the valve seat shoulder; a valve seat annular groove is formed in the upper surface of the valve seat shoulder, a pressing cover annular groove is formed in the lower surface of the pressing cover shoulder, and the valve seat annular groove and the pressing cover annular groove are distributed in a staggered mode in the radial direction; the sealing groove is formed in the joint of the neck of the valve seat and the neck of the pressing cover; the upper part of the plastic liner is filled in the annular cavity in an injection molding mode and is fixedly connected with the valve seat and the pressing cover; an annular boss of the pressing cover is embedded into the outer edge of the plastic liner; and the winding layer is wound on the outer wall surfaces of the plastic liner and the pressing cover.