Detachable waterproof plug for detector signal line

The utility model relates to a detachable waterproof plug for a detector signal line, which is used for petroleum seismic prospecting cables and detectors. The detachable waterproof plug is characterized in that plug pins are injection-molded in a cylindrical plug body; one end of the plug body is arranged in a lock sleeve and the other end of the plug body penetrates through the center hole of the lock sleeve; a male-thread protective cap is fixed in the lock sleeve; a waterproof cap is fixed at the other end of the plug body, a waterproof glue core is arranged in the center hole of the waterproof cap, a three-core wire is arranged in the center hole of the waterproof glue core and conducting wires at the end part of the three-core wire are welded with the plug pins; the two sides of the waterproof cap are respectively provided with a cylinder; the waterproof cap is embedded in the center hole of the upper end of a socket shell; an upper gland is fixed at the upper end of the socket shell; socket pins are in