Strenghthened type flange gold utensil

The utility model relates to a strenghthened type flange gold utensil, which comprises a flange, the ring flange is cascaded, the step is one deck or multilayer, the step is rather than the flange face or the crossing department between the step of one deck adopt circular arc smooth transition down. Be provided with the ring packing groove on the outer circumference on center sleeve top, glue the column filling and seal up ring packing groove and parcel are sealed center sleeve top with the outer border of insulator plug. Strenghthened type flange gold utensil has increased the thickness of flange face junction, makes the flange under the stress, has increased the bending failure load intensity and tension failure load intensity of flange, also makes the antitorque destruction load of gold utensil strengthen greatly simultaneously, has improved the tip sealing performance of insulator, and it is not enough to have solved intensity, equipment can be punctured under adverse circumstances technical problem. 本实用新