Patent ID: 7172692

Claim:
A multifunctional filtering device for an aquarium mainly disposed at the aquarium for filtering breeding water in the aquarium, the multifunctional filtering device for an aquarium comprising: a filter box comprising a rectangular casing with an opened top portion, the rectangular casing comprising a cylindric positioning seat at the center of the inner side of the bottom thereof, a water transportation pipe at a bottom portion of a first lateral sidewall and in communication with the sidewall and the positioning seat, a water output pipe fixing seat at the outer side of a bottom portion of second lateral sidewall and in communication with the rectangular casing, and horizontal locking grooves respectively defined in outer sides of two longitudinal sidewalls of the rectangular casing; a suspension device comprising a latching member at one end thereof for engaging with the locking groove and a fixing member at the other end thereof fixed at the top of one of the sidewalls of the aquarium; a filter sponge bundle comprising a cylindric sponge received in the positioning seat, the filter sponge bundle being defined with a longitudinal water pressure buffering channel, a sealing plate being disposed at the top of the water pressure buffering channel and being upwardly pushed through water pressure; a cover plate for covering the opening of the rectangular casing; a pump motor comprising a water outlet connecting with the outer end of the water transportation pipe and a water inlet; a water input pipe unit comprising a water pipe head fixed at the water inlet of the pump motor for blocking large feculences from entering therein; and a water output pipe unit comprising a water output pipe upwardly extending from the water output pipe fixing seat and a horizontal flow guiding pipe near the top of the water output pipe and in communication with the water output pipe, a sealing cover being threadedly disposed at the top of the hollow pipe.