Multiple pieces dual type bnc connector with all metal shell

A multiple pieces double type BNC connector with an all metal shell, comprising a metalwork rear section casing connected with a plurality of metalwork middle section casings, each said middle section casing being combined with a metalwork front section casing, an accepting room formed by each said front section casing, said middle section casing combined therewith and said rear section casing being combined with a insulator, said insulator being combined with a BNC terminal, said BNC terminal not being contacted with said three metalwork casings, in which at least one of said rear section casing and said front section casing has a combining groove, at least one of said middle section casing and said front section casing has a combining section, said combining section is engaged in said combining groove,

• wherein a rear accepting room is disposed at the rear end of said rear section casing, said rear accepting room has a notch, said rear accepting room is combined with an insulating tenon to shield said notch;
• said insulating tenon has a plurality of through holes, a plurality of lead wires at the rear end of said BNC terminal and a ground lead wire of said rear section casing are respectively accepted in said through holes;
• whereby, the portions of said lead wires passed through out said through holes are allowed to position,
• wherein said rear section casing is connected to a metal cover for shielding the opening of said accepting room;
• said insulating tenon has a rear end sheet, said rear end sheet is covered between said lead wires and said metal cover so as to cause said lead wires and said metal cover not to touch each other to attain to the insulation effect.