Abstract: The present invention discloses a metallic linkage-type keying device, which is installed to a casing, such as the casing of a camera, a mobile phone or a video camera. The metallic linkage-type keying device of the present invention comprises: a metallic linkage, having at least two joining portions; and at least one key, having at least two assembling portions. The key is installed to the metallic linkage via fixing two assembling portions to two joining portions. The metallic linkage-type keying device provided by the present invention can prevent ESD from attacking the interior of the casing via key gaps and has the advantages of compactness and low cost.

Abstract: The present invention discloses a metallic linkage-type keying device, which is installed to a casing, such as the casing of a camera, a mobile phone or a video camera. The metallic linkage-type keying device of the present invention comprises: a metallic linkage, having at least two joining portions; and at least one key, having at least two assembling portions. The key is installed to the metallic linkage via fixing two assembling portions to two joining portions. The metallic linkage-type keying device provided by the present invention can prevent ESD from attacking the interior of the casing via key gaps and has the advantages of compactness and low cost.

Abstract: A conducting wire connection device comprises a hollow shell-shaped connection base body and a resilient locking portion. The connection base body has an opening for insertion of a conducting wire. One end of the resilient locking portion is disposed on the connection base body, and the other end thereof extends inwards to form an acute angled end. The acute angled end is near the inner surface of the connection base body to form a clamping position. A conducting wire can be abutted against by the acute angled end of the resilient locking portion when passing through the clamping position so that the conducting wire can be fixed in the connection base body. Therefore, plug-in or pull-out of a naked conducting wire can be directly accomplished with the provided conducting wire connection device.