| 摘要 |
Gas detecting-extracting device which, in comparison with known prior art apparatuses of security devices, has the advantage that, at the same time as it detects the presence of gases inside a closed space and signals said presence by means of visual and sound alarms, it eliminates simultaneously said gases by expelling them to the outside, said detection-extraction device being characterized by a rectangular prismatic structure formed by assembling by conventional means a front structure and a back structure at the periphery thereof and being sealingly adjusted by means of a rubber ring fitted to a hoop whose front face presents a sensor grid (5) for the detection of gas effluxions, and, due to the presence of the fluid, activates simultaneously the acoustic alarm (4), the light alarm (3) and the extractor (1) (fan) in order to expell the gas to the outside, the fan being provided with a large circular through housing. |
