High-density cable waterproof automatic joint

The utility model discloses a waterproof automatic connector for a high-density cable, and relates to the technical field of mechanical connectors. Comprising a protection cylinder, a first cable connector and a second cable connector, the first cable connector and the second cable connector are movably connected to the two ends of the protection cylinder, positioning mechanisms are symmetrically arranged on the outer wall of the first cable connector and the outer wall of the second cable connector, and the first cable connector comprises a metal connector, an extrusion plate, a first outer cover and a telescopic clamping mechanism. The extrusion plate is arranged in the first outer cover, the metal connector is fixedly arranged at one end of the extrusion plate, and the second cable connector comprises a socket and a second outer cover. According to the utility model, the first cable joint and the second cable joint are in butt joint through the positioning mechanism on the protection cylinder, and the prot