Torque-and-bending resistant underwater electric-connector water-tight apparatus

The utility model discloses a torque-and-bending resistant underwater electric-connector water-tight apparatus and belongs to the ocean geophysical prospecting field. The apparatus comprises a metal joint, an adjusting pipe, an outer metal cover, a first cone, a first rubber gasket, an isolation ring, a second rubber gasket, a second cone, a cone cover, a steel-wire sheath installation disk, a rubber ring, a transition ring, a concave ring, a bell-mouth steel mesh sleeve, a rubber protective sleeve, a locking nut, a hollow wedge column, bearing aramid fibers and a positioning inner wedge column. A peripheral device comprises a cable body. The apparatus is provided with the isolation ring between the rubber gaskets, so that the rubber gaskets form a series structure and form labyrinth-type similar seal, and seal performance of a position is raised. Connection strength between the seal joint and the cable body is high and torque-and-bending resistant capability is strong.