Quick connecting device of cable

The utility model discloses a quick connecting device of cable, overlap nut, waterproof gasket and hexagonal fixation nut including connecting device overcoat, cable seal, the inside of connecting device overcoat is provided with first contact stand, the cable seal circle is installed to the top of first contact stand, cable seal circles and is provided with the cable seal clamp, cable seal cover nut is installed in the top that cable seal pressed from both sides, be provided with contact stand retaining ring on the first contact stand, the below of connecting device overcoat is provided with lock fixed ring, second contact stand is installed to the below of first contact stand, the below of second contact stand is provided with microcontroller. The utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization adopts advance technology production, makes the fire -retardant anti homogeneity of cable good, stops to pollute the contact failure who leads to, and