Device for preventing tail wire of digital detonator from falling into hole

The utility model relates to a device for preventing a tail wire of a digital detonator from falling into a hole, which comprises four right-angle mounting plates, first limiting grooves are formed in the upper end surfaces of the four right-angle mounting plates, second limiting grooves are formed in the inner walls of the first limiting grooves, compression springs are arranged in the second limiting grooves, and the outer side ends of the compression springs are connected with compression plates. An adjusting assembly is arranged between every two adjacent right-angle mounting plates and comprises an outer rod and an inner rod, a plurality of first limiting holes are formed in the upper end face of each outer rod, second limiting holes are formed in the upper end faces of the sides, away from the right-angle mounting plates, of the inner rods, limiting rods are arranged in the first limiting holes and the second limiting holes, and the bottom ends of the four right-angle mounting plates are each provided w