| 摘要 |
The present invention relates to a device for connecting an air tight door which fixes the air tight door and a door frame by using a hinge. The device for connecting the air tight door comprises a head unit, a connection unit, and an elastic member. A rotation resistance groove is formed in the head unit. The connection unit comprises a leg unit which is inserted into the rotation resistance groove. The elastic member is mounted on the leg unit of the connection unit and is inserted into the rotation resistance groove of the head unit. The present invention is provided to be applied to a door of a general building by simplifying a structure of the device for connecting the air tight door for waterproof and to reduce flood damage. |
