| 摘要 |
PURPOSE: An airtight fireproof damper of a cultural property storage vault is provided to insulate smoke or fire completely, and to protect cultural properties safely in the storage vault by opening and closing the damper according to humidify and temperature and keeping constant temperature and humidity with the sealing member. CONSTITUTION: An airtight fireproof damper comprises a damper(1) having a front duct, a rear duct and a middle duct opening and closing the airtight gate, an inner duct(14) extended between the front duct and the middle duct and opened and closed by a first airtight gate(2a), a motor(5) fixed in the middle of the support frame, a lead screw shaft(4) turned and installed in parallel with the bearing housing and rotated by receiving power from the motor, the first airtight gate turned and hinge-combined with the lower frame of the inner duct to open and close the opening end of the inner duct, an operating link(6) combined with the fixing bracket and composed of an elongated hole containing the bearing shaft protruded from the hinge bracket of the first airtight gate, a reciprocating body(7) thread-connected to surround the lead screw shaft and reciprocated in rotating or reversing the lead screw shaft, and a connecting link(71) connecting the operating link to the reciprocating body and opening and closing the first airtight gate by turning the operating link up and down in moving the reciprocating body.
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