New portable aerosol fire-fighting device

摘要

A new portable aerosol fire-fighting device is equipped with an insulation layer (3), an inner cylinder (4), an aerosol generating agent (5), a thermal insulation material (6), a spray head (9), a contractive orifice (10), a shell (11), an ignition head (12), and a piezoelectric crystal assembly (13). The insulation layer (3) is set between the inner cylinder (4) and the aerosol generating agent (5), and the screw thread by which the spray head (9) is rotatablely connected with the shell (11) is a segmental thread with 3~6 segments. Compared to the prior art, the design of the segmental thread by which the spray head is rotatablely connected with the shell greatly reduces the time for disassembling the spray head so as to prevent the accident from being happened and to significantly enhance the safety.