Device for threading flexible lead through porcelain conduit

The utility model relates to a device for threading a flexible lead through a porcelain conduit, and belongs to the technical field of threading of porcelain conduits. The device comprises a support plate, wherein a guide block for threading the flexible lead is fixedly arranged on the support plate; a guide hole is transversely formed in the bottom of the guide block; the top-down section of the guide hole is of a right-angled trapezoid structure; the right angle side of the right-angled trapezoid structure is overlapped with the upper surface of the support plate, the upper base of the right-angled trapezoid structure is positioned on the left sidewall of the guide block, and the lower base of the right-angled trapezoid structure is positioned on the right sidewall of the guide block; the left-to-right section of the guide hole is of an isosceles triangle structure; a fixing groove for fixing the porcelain conduit when the flexible lead is threaded is transversely formed in the support plate on the left side of the guide block; the distance between the fixing groove and the guide hole is equal to the thickness of the porcelain conduit. The device for threading the flexible lead through the porcelain conduit is simple in structure and convenient to use, difficulty, caused by the bending of the flexible lead, in the threading of a small porcelain conduit can be prevented, and the production cost is lowered.