Foam generator with adjustable pore space medium

The utility model discloses a foam generator with adjustable aperture mediums which mainly comprises a casing and a T-shaped head; a sealed rubber sleeve is arranged inside the casing; a certain amount of washers and porous mediums are placed into the sealed rubber sleeve by turns; a gasket is arranged on the outermost side of the washers and the porous mediums; a spring is arranged on the other side of the gasket; the spring in a compressed state is arranged between the gasket and the T-shaped head; one end of the casing is in threaded connection with the T-shaped head, and the other end thereof is a foam outlet port; and two single-phase valves arranged at the other two ends of the T-shaped head respectively, wherein, one of the two single-phase valves is an inlet port, while the other is a liquid feeding port. The utility model has the advantages of simple structure, and simple processing, manufacturing and maintenance. Because the aperture mediums and the porosity are adjustable, and can be combined optim