Novel insulating festival of communications optical cable

The utility model belongs to the optical communication device field, be applicable to newly -built railway and railway facilities network improvement project in the optical cable way be under construction, novel insulating festival of communications optical cable especially, including the two halves shell, two halves shell middle part is inwards made the recess and is formed the cavity, and the two halves shell is made the open position terminal surface of recess and is levelly and smoothly made, the open position terminal surface in close contact with that the two halves shell was made, a movable mounting concatenation formation sleeve, a through -hole is do not made to sleeve both sides tip, and this two through -hole all communicates with the cavity that half hull shape becomes, two through -holes set up to cable inlet and go out the both ends that the cable mouth is used for the holding optical cable, and the device that clamps that is used for fixed optical cable both ends is installed to the cavity that