Connector

A connector comprising:

• a first connecting means having a first connecting body, a first connecting pin installed inside of said first connecting body and an insert ring fitted on one side end of said first connecting body;
• a second connecting means having a second connecting body fitted in said insert ring of said first connecting body, and a second connecting pin connected with said first connecting pin;
• a retaining means having a through hole for passing the second connecting body to be fixed to the first connecting body and a plurality of cutting portions at a peripheral portion thereof, and said retaining means being installed inside said first connecting means;
• and
• a releasing means for pressing said retaining means to release said retaining means from said second connecting body by expanding the through hole of said retaining means, and said releasing means being movably installed in an end portion of said first connecting body.