Built-in bolt cable switching device

The invention relates to a cable switching device applied to a novel bypass cable operation method of a distribution network line ring main unit. The built-in bolt cable switching device is characterized in that the built-in bolt cable switching device comprises a binding post, an insulating outer cylinder, a screw rod, a cable guide pipe, an insulating fixing sleeve, a conductive insertion rod and a fastening nut; the right end of the binding post is internally provided with a jack, and the right part of the binding post is provided with an external thread; the left part of the insulating outer cylinder is sleeved with an insulating fixing sleeve; the left part of the conductive insertion rod is located outside the insulating outer cylinder, the right part of the conductive insertion rodis located in the cylinder hole, the right end of the conductive insertion rod is provided with a screw hole, and the diameter of the conductive insertion rod is 0-1 mm less than that of the jack; oneend part of the cable pen