Flat concave type cable

The utility model relates to a flat concave type cable, including insulator, locate the wire in the insulator, insulator's upper surface is equipped with along the interior concave part of cable length direction extension, and lies in the side convex part of concave part both sides, and insulator's lower surface is equipped with along the outer convex part of cable length direction extension, and lies in the side concave part of outer convex part both sides, the upper surface is identical with the shape of lower surface. The utility model discloses utilize the side convex part unanimous identical with side concave part size of a dimension, the same identical effect with outer convex part radian of interior concave part, the adoption of messenger's cable is spiraled when taking in, can with the outer convex part card of a cable in the interior concave part of another cable, be convenient for take in, just do not need the foreign object to truss up to the reduction occupies the space, need not carry out extra o