US Patent 10490942 Locking socket with release mechanism

An anti-off socket includes a socket body defining therein an insertion space for receiving a blade of a plug, a locking mechanism including an elastic latch that has a positioning segment affixed to the socket body and an abutting segment extended from the positioning segment and inserted into the insertion space for allowing insertion of a blade of a plug into the insertion space and stopping the inserted blade from backward displace relative to the socket body after the inserted blade entered the insertion space, and a release mechanism including a release member mounted in the socket body and operable to release the elastic latch from the inserted blade of the plug for allowing removal of the plug from the socket body.