Water purifying apparatus and refrigerator including the same

A refrigerator comprising:

• a cabinet that defines a storage space;
• a door configured to open and close at least a portion of the storage space;
• and
• a water purifying apparatus provided in the storage space and configured to purify water,
• wherein the water purifying apparatus comprises:
• a head configured to connect to a water inlet tube and a water outlet tube,
• a filter housing configured to insert into the head, the filter housing being configured to couple to the head by rotation relative to the head,
• a filtering member accommodated inside the filter housing,
• a head insertion portion that is configured to insert into the head and that is configured to couple to the head, the head insertion portion having an upper end that is open, that is configured to receive water, and that is configured to discharge water,
• a fixing portion that protrudes from and extends along a circumferential surface of the head insertion portion,
• a protrusion portion that protrudes upward from the upper end of the head insertion portion and that extends along a circumference of the upper end of the head insertion portion, and
• a sealing member fixed to the fixing portion and disposed along the circumferential surface of the head insertion portion, the sealing member being configured to be in contact with an inner surface of the head to thereby seal a gap between the head and the head insertion portion,
• wherein the sealing member comprises:
• a sealing portion that protrudes outward from and extends along the circumferential surface of the head insertion portion and that is configured to be in close contact with the inner surface of the head,
• a hook portion disposed below the fixing portion and configured to be restricted by the fixing portion,
• a connection portion that connects the sealing portion to the hook portion, and
• an extension portion that extends upward from an upper end of the sealing portion and that is configured be in contact with the protrusion portion,
• wherein an inner circumferential surface of the extension portion is configured to be supported by an outer circumferential surface of the protrusion portion,
• wherein the protrusion portion defines a step that is recessed inward in a radial direction relative to the upper end of the head insertion portion, and
• wherein an outer diameter of the protrusion portion defined by the outer circumferential surface of the protrusion portion is less than an outer diameter of the circumference of the upper end of the head insertion portion.

A water purifying apparatus comprising:

• a head configured to connect to a water inlet tube and a water outlet tube;
• a filter housing configured to insert into the head, the filter housing being configured to couple to the head by rotation relative to the head;
• a filtering member accommodated inside the filter housing;
• a head insertion portion that is configured to insert into the head and that is configured to couple to the head, the head insertion portion having an upper end that is open, that is configured to receive water, and that is configured to discharge water;
• a fixing portion that protrudes from and extends along a circumferential surface of the head insertion portion;
• a protrusion portion that protrudes upward from the upper end of the head insertion portion and that extends along a circumference of the upper end of the head insertion portion;
• and
• a sealing member fixed to the fixing portion and disposed along the circumferential surface of the head insertion portion, the sealing member being configured to be in contact with an inner surface of the head to thereby seal a gap between the head and the head insertion portion,
• wherein the sealing member comprises:
• a sealing portion that protrudes outward from and extends along the circumferential surface of the head insertion portion and that is configured to be in close contact with the inner surface of the head,
• a hook portion disposed below the fixing portion and configured to be restricted by the fixing portion,
• a connection portion that connects the sealing portion to the hook portion, and
• an extension portion that extends upward from an upper end of the sealing portion and that is configured be in contact with the protrusion portion,
• wherein an inner circumferential surface of the extension portion is configured to be supported by an outer circumferential surface of the protrusion portion, and
• wherein the inner circumferential surface of the extension portion extends straight along the outer circumferential surface of the protrusion portion such that an entire upper end of the protrusion portion is exposed to the head.