Low-noise oxygen foaming filter element and preparation method thereof

The low-noise oxygen foaming filter element comprises a main body filtering part and a mounting structure, the mounting structure comprises a containing part and a locking part, a containing cavity matched with the main body filtering part is formed in the containing part, and a plurality of compensation notches are formed in the position, close to the opening end, of the side wall of the containing part; the locking part comprises a top wall and a side wall, threads are arranged on the inner side face of the side wall, a connecting part matched with the side wall of the locking part is arranged on the outer wall of the open end of the containing part, and threads are arranged on the outer wall of the connecting part. The framework is arranged in the main body filtering part and divides the main body filtering part into a plurality of small blocks, so that the deformable amplitude of the main body filtering part is reduced, the vibration amplitude of the main body filtering part is further inhibited, and the