Optical connector and optical connector module thereof

An optical connector module, comprising:

• a first optical connector, including a first coupling module, a first protection housing, and a second cover, the first protection housing having a first opening, and the first protection housing having a first cover on a side of the first opening, a first plate protruding from an end of the first cover, the second cover detachably coupled to the first protection housing, a first accommodation space is formed between the second cover and the first cover for accommodating the first coupling module, and a second plate protruding from an end of the second cover;
• and
• a second optical connector, coupled to the first optical connector, the second optical connector having a second coupling module, a second protection housing, and a fourth cover, the second protection housing having a second opening, the second protection housing having a third cover on a side of the second opening, and a third plate protruding from an end of the third cover, the fourth cover detachably coupled to the second protection housing, a second accommodation space formed between the fourth cover and the third cover for accommodating the second coupling module, and a fourth plate protruding from an end of the fourth cover,
• wherein when the second optical connector is coupled to the first optical connector, the first coupling module is coupled to the second coupling module, the second plate is combined with the fourth cover, the fourth plate is combined with the second cover, the first plate is leaned against a side of the fourth plate, and the third plate is leaned against a side of the second plate,
• wherein the first coupling module is disposed on the first protection housing, and the second coupling module is disposed on the second protection housing.