Adaptor with built-in shutter for optical connector

An adaptor for optical connector, comprising:

• a body, having a receiving space;
• a shutter, movably assembled to the body to shield or expose the receiving space, an optical connector being suited for pushing away the shutter to enter the receiving space to be connected to the body, wherein the shutter has a step structure such that a gap is maintained between the shutter and the optical connector;
• and
• an elastic member, disposed in the body and located on a moving path of the shutter, the shutter deforming the elastic member when the optical connector pushes away the shutter, and the elastic member driving the shutter to be restored when the optical connector leaves the receiving space,
• wherein the shutter has a shaft portion, a first plate, and a second plate, the first plate extends from the shaft portion and is located between the shaft portion and the second plate, and the first plate and the second plate are parallel to each other and feature the step structure, and
• the optical connector has a coupling sleeve and a ferrule extending from the coupling sleeve, and a gap is provided between the ferrule and the second plate when the coupling sleeve is propped against the first plate to push away the shutter in a process of the optical connector moving into the receiving space.