Filter element assembly and water purifier

A filter element assembly, comprising:

• a filter bottle;
• an interface mechanism, provided on the filter bottle;
• and
• a connector, connected with the interface mechanism to communicate with the filter bottle;
• wherein the interface mechanism comprises:
• a mechanism body, wherein the mechanism body is provided with a water passage communicated with the filter bottle;
• a blocking member, moveably provided on the mechanism body, wherein the blocking member has a first position for closing the water passage, and a second position for opening the water passage;
• and
• a magnetic member, provided on the mechanism body to produce a magnetic force to the blocking member, and configured to drive the blocking member to move towards the first position, wherein the connector is inserted into the water passage to push the blocking member to the second position, the blocking member is provided in the water passage, the water passage is provided with a valve port matched with the blocking member, in the first position, the blocking member is abutted against the valve port, the mechanism body comprises:
• a base, inserted in the filter bottle, wherein a part of the water passage is formed on the base, and the blocking member is positioned on the base;
• and
• a pressing cover, covering the base, wherein the other part of the water passage is formed on the pressing cover, the valve port is provided on the pressing cover, and the magnetic member is positioned on the pressing cover.