▎ 摘　　要

NOVELTY - The utility model belongs to the technical field of graphene ultrafiltration film, especially a filtering device using graphene ultrafiltration membrane, comprising a box body, two sides of the box body are provided with a first sliding groove; the utility model, by setting the filter cylinder and a supporting block; a supporting block for supporting the cartridge, and the cartridge can be gravel in water, odour and other impurities by filtering, at the same time, the first fixing groove and the second fixing groove, under the common effect of the first fixing column and the second fixing column, can the cartridge and the supporting block are fixed together; In addition, the supporting rod, the supporting plate, the first tooth, the second tooth and placed under the common action of the groove, an electric push rod descends when the second sliding block and the first sliding block are respectively sliding in the second sliding groove and the first groove, so as to make the first cog and the second cog is engaged so that the cartridge and supporting block is fixed more stably, the phenomenon so as to avoid the effect of the water flow under filter is displaced.