Optical fiber adapter

An optical fiber adapter, comprising:

• a housing provided with a chamber, wherein the chamber comprises a first chamber and a second chamber which are in communication with each other and which are respectively in communication with two opposite ends of the housing, and the first chamber extends to an end face of the housing and to a side face of the housing;
• a retaining member, which is integrally formed with the housing and is provided within the first chamber, wherein the retaining member is enclosed to form a receiving cavity, and the receiving cavity has a first opening located at one end of the retaining member, a second opening located at the other end of the retaining member, and a third opening extending along a length direction of the retaining member;
• a retaining cover plate, which is used for detachably connecting to the retaining member to seal the third opening;
• a ceramic sleeve, which is provided within the receiving cavity and is adjacent to the retaining cover plate, wherein the ceramic sleeve has a third chamber in communication with the first opening and the second opening, and the ceramic sleeve is limited within the receiving cavity;
• and
• a handle which is provided on an outer surface of the retaining cover plate and is fixedly connected with the retaining cover plate, and which is disposed in the first chamber and adjacent to an end surface of the housing.