| 摘要 |
A plug-in device according to the prior art has a spring arm, which presses a knob of the unit plug ( 3 ) into a cutout of the socket part. This can lead to a mechanical failure of the spring arm. A plug-in device ( 1 ) according to the invention has a knob ( 9 ), which is disposed on an elastic part of the unit plug and in the connected state, is held in the cutout ( 11 ) of the socket part ( 5 ) without external force. The unit plug is locked into the socket rotation of the unit plug ( 3 ) to a position where a bump ( 9 ) snaps into the cutout ( 11 ).
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