Oval door of withstand voltage shielding suitable for marine steel containment

The utility model relates to an oval door of withstand voltage shielding suitable for marine steel containment, the switch mechanism comprises a door body, sealing mechanism and starting and stoppingmechanism, the characterized by door body is trapezoidal including the longitudinal section, the cross section is the hollow door plant of long circle, the inner chamber of hollow door plant is provided with the shielding layer, sealing mechanism includes rail outer loop and sealing ring, the sealing ring is installed on the seal groove on hollow door plant, starting and stopping mechanism is including rotatory hand wheel, the hand wheel axle, the snib axle, the snib, pass the power snib, the dowel steel, long connecting rod, the short connecting rod, the pitman shaft, hinge mandrel and hingearm, hinge arm's one end is articulated with the hinge mandrel, hinge arm's the other end and hollow door plant are connected, the both ends of hand wheel axle are connected with rotatory hand wheel respectively, the outer tip