Connect filter core soon

The utility model provides a connect filter core soon, includes main part and the lid of being connected with the link of main part be equipped with two pair at least flanges on the main part periphery wall, be equipped with the recess on the surface at that flange that lies in the main part link, lid and the link of main part be connected its bottom surface of back and fall into this recess, canprevent so not only that the lid from rocking, make the installation of lid more firm and reliable, moreover bottom surface and the recess of lid the bottom surface contact and produce when criticizing the cutting edge of a knife or a sword, criticize during the cutting edge of a knife or a sword has also ensconced the recess, need not secondary operation just can ensure whole filter core beautifully, in addition, though sometimes the lid totally the encapsulation put in place and produce the space between the bottom surface of the bottom surface that makes the lid and recess, the lateral wallthat this space also can