A BNC T-type adaptor including
- a T-shaped insulating hollow housing having a vertical common branch, and left and right branches that extend horizontally from two sides of said common branch and that are communicated with said common branch, each of said left and right branches being adapted to receive a conducting plug with a tubular insulator;
- an internal conductor disposed in said insulating housing and including a vertical conducting portion which extends into said common branch and a horizontal conducting portion that is connected to said vertical conducting portion and that has left and right parts that extend into said left and right branches respectively;
- an elongated grounding unit disposed below said horizontal conducting portion in said insulating housing;
- and
- two insulator units being sleeved around and positioning said left and right parts of said horizontal conducting portion and said elongated ground unit within said insulating housing;
- wherein the improvement comprises:
- each of said left and right parts of said horizontal conducting portion having a contact unit disposed thereon and a resilient conducting strip which is integral with an end portion of said horizontal conducting portion and which extends axially and inwardly from said contact unit, said contact units being adapted to connect electrically with said conducting plugs respectively, each of said resilient conducting strips having a slanted intermediate portion and a distal end which is located below said contact unit and which normally contacts said grounding unit;
- and
- each of said insulator units having a circumferential wall body which defines an axial bore therethrough and which receives a corresponding one of said contact units therein, each of said insulator units being associated with a corresponding one of said left and right branches of said insulating housing and with said internal conductor to constitute a socket unit in which one of said contact units is disposed, each of said socket units being associated with a corresponding one of said conducting plugs to constitute a plug-and-socket assembly;
- in each of said plug-and-socket assemblies, said wall body of said insulator unit cooperating with one of said left and right branches of said insulating housing so as to define an annular receiving space around said insulator unit for receiving said tubular insulator of said conducting plug therein;
- in each of said plug-and-socket assemblies, said wall body of said insulator unit further having an axial slot formed therethrough through which said slanted intermediate portion of said resilient conducting strip extends to protrude into said annular receiving space;
- whereby, in each of said plug-and-socket assemblies, when said conducting plug is inserted into one of said left and right branches so as to contact said contact unit, said tubular insulator enters into said annular receiving space to push said slanted intermediate portion of said resilient conducting strip radially and inwardly of said wall body of said insulator unit so as to disengage said resilient conducting strip from said grounding unit.