Water purifier filter cartridge of simple structure

Abstract

The present utility model discloses a water purifier filter cartridge of simple structure, comprising a filter cartridge cylinder, wherein a central tube coaxial with the filter cartridge cylinder is disposed in the filter cartridge cylinder; a first cavity is formed in the central tube; a filter cartridge body is disposed outside the central tube; the filter cartridge body comprises an RO membrane and a pre-filtering membrane; the RO membrane is wound around the central tube; several water holes communicating the first cavity with the RO membrane are formed in the side wall of the central tube; the pre-filtering membrane is wound outside the RO membrane; a second cavity is formed between the pre-filtering membrane and the filter cartridge cylinder; a first water gap, a second water gap and a third water gap are formed in the top of the filter cartridge cylinder; the first water gap communicates with the first cavity; and the second water gap communicates with the second cavity. According to the water purifier filter cartridge of simple structure of the present utility model, the filter cartridge structure is simplified, the cost is lowered, connection of a water path of the filter cartridge in a water purifier is more convenient, mounting errors and omissions are reduced, the assembling efficiency is improved, and the structure of the water purifier filter cartridge is further improved.

Dependencies are inferred from the claim text.