US Patent 9214754 Holding device used for electrical connector

A holding device for an electrical connector, includes a frame with an opening defined on a center thereof. A first locking portion is disposed on the frame and extends into the opening. A second locking portion has a main body with an elastic arm. The main body defines a fixed end fixed to the frame and an active end rotating around the fixed end. The second locking portion has an open position that the active end can move freely and a closed position that the active end locks to the frame while the elastic arm extends into the opening.