Patent ID: 7097681

Claim:
A filtering bag structure comprising a filtering member with multiple folds to cover a support formed by surrounding of a plurality of rods, said support has thereon a plurality of bracing members to support said filtering member, two ends of said support are mounted with two shaping pieces and respectively an upper and a lower lid for fixing and sealing, thereby, said filtering bag combination is completed; said upper lid has an air outlet to connect an external air exhausting equipment; wherein: said bracing members are all serrated members, and are each provided on an outer side thereof with numerous equidistantly separated crests and corresponding hollows, and on an inner side thereof with a straight connecting base, said crests have on the top of each of them a clamping notch for placing therein a rod, said plurality of bracing members are transversely arranged within a polygon formed by positioning said rods of said support; said filtering member is formed of a ventilating cloth with a plurality of folds, a plurality of inner folding areas thereof corresponding by position to and are fixed on said hollows of said bracing members; a plurality of outer folding areas thereof are supported by said rods, therefore, after assembling, said folding areas formed by folding said filtering member do not generate dead corners.