Filtering mechanism of fire mask

• Main Authors: CAI MINDA, SU JINGCHUN
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• Subjects: DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING; FIRE-FIGHTING; HUMAN NECESSITIES; LIFE-SAVING

The utility model discloses a fire mask filtering mechanism which comprises a connecting sleeve frame, and a fast-assembly type rotary replacement filtering structure is installed on the connecting sleeve frame. The quick-assembly type rotary replacement filtering structure comprises a protective filtering net, a mounting groove, a plurality of combined locking blocks, a combined sleeve and a rotary replacement filtering assembly, the utility model relates to the technical field of fire-fighting filtering structures, and has the beneficial effects that the problem that the existing fire-fighting mask is mostly directly provided with a dust-proof tank for filtering protection, but the dust-proof tank is of a single-tube structure in the use process, so that the dust-proof tank cannot be used for filtering protection along with the increase of rescue time in a fire scene is solved; the filtering performance of the dustproof tank becomes poor along with the increase of the dust filtering amount, the dustproof ta