| 摘要 |
A fire extinguishing assembly is used in a ventilating duct which has an inner wall, an outer wall, and an insert hole that extends in a radial direction from the outer wall to the inner wall. The fire extinguishing assembly includes a mounting seat having an inner seat wall to be mounted on the outer wall of the duct to cover the insert hole, and an outer seat wall with an inner peripheral seat. The inner peripheral seat defines a through hole that extends to the inner seat wall, and an annular insert portion that extends from the inner seat wall and that is in fluid communication with the through hole. The insert portion can be inserted fittingly into the insert hole to establish fluid communication between the ventilating duct and the through hole. An elongate fire extinguishing body has a connecting end portion, a free end portion formed with a nozzle head that can be brought to pass through the insert portion to extend inwardly of the inner wall via the insert hole. A heat fusible and gas impermeable cap member has a closed end portion to isolate hermetically the nozzle head from an interior of the ventilating duct, and an annular end portion that is exposed outwardly of the duct through the through hole and that forms an annular edge. A mounting flange is integrally formed with and extends outwardly from the annular edge.
|
