Wave Filter Housing

The intention of the utility model is to supply a filter shell with good sealing function and useful insect protection.

The above skill intention of the utility model is accomplished by the following skills scheme: aFilter housing, including the bottom box and the upper cover which can cooperate with the bottom box, the outer wall of the bottom box is provided with a convex extending to the bottom of the base box, and a convex is also arranged to extend to the second bulge at the bottom of the base box, and the side wall, a bulge and the second bulge of the bottom box are stepped, The upper interval of a bulge is arranged with a plurality of third bulges with a second bulge level, and the upper cover is provided with a ladder corresponding to a bulge, and the upper cover is also provided with a third groove corresponding to the third bulge, and the third Groove and the third bulge are arranged to have a magnet and a second magnet that can cooperate with each other, The bulge avoids the position of the third bulge and is provided with an air bag with ammonia stored internally.