Lay protection device of cable

The utility model relates to a cable protecting device field discloses a lay protection device of cable, including the channel -section steel, the logical groove of channel -section steel top is provided with the lid, the bottom that leads to the groove is provided with and leads to the lower liner board of groove adaptation, and a plurality of first recesses have been seted up along lower liner board length direction to the upper surface of lower liner board, the top of lower liner board is provided with can dismantle the last welt of being connected with the channel -section steel, goes up the lower surface of welt and has offered the second recess, going up and being provided with the cab apron between welt and the lower liner board, the lower surface of crossing the cab apron corresponds first recess and has offered the third recess, and the upper surface of crossing the cab apron corresponds the second recess and has offered the fourth recess, wear to be equipped with the cable inthe passageway that firs