Electrical signal connector

An electrical signal connector for electrically connecting a coaxial cable to a mating connector, comprising:

• a locknut comprising a mating hole extending through two opposing ends thereof, an inner thread disposed in one end of said mating hole, and an inside annular flange disposed in an opposite end of said mating hole;
• a metal central tube inserted into said mating hole of said locknut and extending out of said locknut, said metal central tube comprising an axial hole axially extending through two opposing ends thereof, a stop flange extending around the periphery thereof at one end, a barbed retaining portion extending around the periphery thereof at an opposite end, a locating groove extending around the periphery between the stop flange and barbed retaining portion of said metal central tube, and an annular bearing surface portion extending around the periphery between the stop flange and locating groove of said metal central tube;
• a chuck unit mounted around said annular bearing surface portion of said metal central tube and stopped against said locknut outside said mating hole, said chuck unit comprising a collar surrounding said metal central tube and a constraint shell surrounding said collar, said collar comprising a receiving hole axially extending through two opposing ends thereof for the passing of said metal central tube, an inside annular stop flange disposed in one end of said receiving hole and attached to said annular bearing surface portion of said metal central tube and a plurality of longitudinal clamping strips equiangularly spaced around an opposite end of said receiving hole;
• and
• an actuation sleeve sleeved onto said collar within said constraint shell and axially movable relative to said chuck unit between two positions to compress said longitudinal clamping strips or to release said longitudinal clamping strips.