Mist purifier cartridge pressing means and the compression method

One kind of oil mist purifier cartridge pressing means and pressing method, the pressing means comprises a compression filter frame, the pin and the duckbill buckle; the framework for pressing the filter cartridge pressing frame top plate, the inner and outer cross beams welded into a frame; the frame top plate is pressed against a filter cross-sectional shape of the knife plate type, the cross-sectional shape as follows: comprises arcuate segments, straight segments inclined arcuate segment connected to one end of arcuate the other end section as a horizontal linear segment by linear segment stepped connection; is formed between the tip arcuate segment and a straight segment; the horizontal linear segment further inclined linear segment connected by a vertical straight line segments; the pin core pressing frame mounted on the top plate; the present invention is configured by modifying the configuration of the pressing means so as to solve the problem of insufficient sealing between the filter and the lighter weight of the cartridge holder.