| 摘要 |
PURPOSE: A protective door assembly is provided to smoothly open or close a protective door and to effectively block the inflow and outflow of electromagnetic waves through the structure of a rotation sealing part. CONSTITUTION: A protective door assembly comprises a main body(110), a door frame, a hinge part(140), and a rotation sealing part(120). The rotation sealing part comprises a rotation rod(123) and a rotation rod supporting spring(125). The rotation sealing part rotates or linearly moves by interlocking with the opening and closing of a door body to maintain airtightness between the door frame and main body. The hinge part comprises a supporting part(141), a door joint plate, a rotary arm(143), and first and second hinges(145,147). |
