When the door is opened, the door body drives the connecting rod to move, makes the transmission gear rotate, and drives the rack plunger to move to the right.
By using the marine door, not only can the cabin be ventilated when a fire occurs or the door panel cannot be opened, but also personnel can escape in time, thereby avoiding casualties. One side of the air grid type small door panel is hinged with the corresponding side of the escape port, and the other side is provided with a latch for closing or opening the air grid type small door panel. The utility model is characterized in that there is an escape opening on the fire door panel, and a small wind grille door panel is arranged at the escape opening. The marine door contains a fire door frame and a fire door panel, one side of the fire door panel is hinged with one side of the fire door frame, and the other side is provided with a door lock and a handle. Marine doors are mainly cabin fire doors on ships.
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