Lock structure of plug of cable

A lock structure of plug of cable, including:

• a main body, having a first partition and a second partition to partition a inner space of the main body to an upper room and a lower room, the upper room including an elastic area and a locking area, the first partition being located under the elastic area, a key opening being formed on a wall of the locking area to receive a key and to enable the key to rotate, the lower room enabling a plug of cable to be received in wherein the plug of cable is inserted into the lower room via a side of the main body having the key opening, the plug of cable having a compressible latch;
• an elastic element, being located in the elastic area and being able to move between a first position and a second position, the elastic element tending to stay at the first position, the latch of the plug of cable being unable to be compressed when the elastic element is at the first position, the latch of the plug of cable being able to be compressed when the elastic element is at the second position;
• wherein the elastic element is at the first position when the key is not inserted into the key opening and does not rotate, the elastic element is pushed to the second position by the key and the latch is compressed by the key when the key is inserted into the key opening and rotates toward a specific direction.