| 摘要 |
An ascent and descent device for a fire sensor is provided, in which ascent and descent speed is rapidly performed and the production cost is lowered by miniaturizing a product. An ascent and descent device for a fire sensor comprises: a main body(100) installed and fixed at the ceiling surface of building; an elevating body(200) lifting up and down according to the authorization signal; a wire(300) elevating the elevating body; a forward reverse motor(400) which rotates a drum forward or backward so that the wire can be wound and unwound; connection terminals(600,610) which are electrically connected; and a fire sensor(B) which is formed in the elevating bottom and is ascended and descended through the elevation reel(A).
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