Quick cable coupling device

The utility model relates to a quick cable coupling device, comprising a quick plug and a center contact. A quick contact housing is internally provided with a quick plug insulation layer in a sleeving manner. The quick plug insulation layer is internally provided with a quick plug conductive core in a sleeving manner. A center contact housing connected with the quick plug is internally provided an insulation layer. A center contact insulation layer is internally provided with a center contact conductive core, and the conductive core is internally provided with a copper watchband type touch finger in a sleeving manner. The quick plug and the quick contact housing are connected through a self-lock device, and reliable locking is guaranteed. The quick plug insulation layer and the center contact insulation layer form interference fit, so that a sealed and insulated connection function and water resistance are achieved. The quick plug conductive core and the center contact conductive core are connected with each and are elastically contacted through the copper watchband type touch finger, so that an enough conductive contact area is ensured.