| 摘要 |
PURPOSE: A security-reinforced watertight and weathertight steel door for a ship is provided to increase watertight and weathertight effects by controlling attachment force between a door plate and a door frame. CONSTITUTION: A security-reinforced watertight and weathertight steel door for a ship comprises a plate(10), a dog driving handle(1a), operation arms(3), and multiple links(2). The plate is coupled to one side of the frame by a hinge tension assembly. The dog driving handle is rotationally installed on the other side of the frame. In the operation arms, dogs(5) are rotationally installed in the upper and lower parts of the plate and the other side of the frame. The links connect the operation arms and the dog driving handle. |
