| 摘要 |
An installation coupler is disclosed which comprises a male installation plug ( 10 ) and a female installation socket ( 130 ). The installation plug ( 10 ) comprises a casing ( 12 ) and a sleeve ( 24 ). Similarly, the installation socket ( 130 ) comprises a casing ( 132 ) and a sleeve ( 142 ). On assembly of the installation plug ( 10 ) to the installation socket ( 130 ), electrical plug pins, which are located within the sleeve ( 24 ), pass through openings ( 278, 280, 282 ) located in the front wall of the sleeve ( 142 ) and displace a shutter which allows the plug pins access to socket contacts, located within the sleeve ( 142 ), to allow electrical current to flow from the installation socket ( 130 ) to the installation plug ( 10 ). A barbed portion ( 200 ) of an elongate protrusion ( 198 ) cooperates with an opening ( 126 ) in the side wall of the sleeve ( 24 ) to prevent the installation coupler from being disconnected by merely pulling the installation plug ( 10 ) and the installation socket ( 130 ) apart.
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