Abstract: The present invention relates to a tube-fitting structure for a pure-water line of a water purifier or refrigerator. The present invention provides a tube connecting structure in which a tube fitted into a body having a fitting part formed therein is fixed by a cap, wherein a guide groove formed to have a receiving recess curved downward is formed on an outer circumferential surface of a tube link part of the body, and wherein a guide protrusion is formed on an inner circumferential surface of the tube corresponding to the outer circumferential surface of the body to allow the guide protrusion to be coupled along the guide groove, so that the tube is easily assembled with the body while the cap is rotated due to an inclined surface of the guide groove. Thus, in spite of enhancing the air tightness of the fitting structure, the assembly is improved.

Abstract: Disclosed herein is a filter assembly for water purifiers. The filter assembly includes a head having an inlet duct, a control valve, and an outlet duct. A circular cap is provided on the lower portion of the head, and has cylindrical space. A filter cap is mounted to the circular cap. A filter cartridge has a filtering part which is provided with a filter to purify water. A plurality of fastening holes is formed in the outer circumference of the circular cap, and has a step. Locking parts are disposed in the fastening holes to lock the filter cartridge. An elastic member surrounds the circular cap and the outer surfaces of the supports parts, thus elastically supporting the locking parts to the fastening holes. The filter cap has on the outer circumference of the upper portion thereof a plurality of fastening holes into which the locking parts are fitted.

Abstract: A water purification filter assembly is disclosed. The water purification filter assembly of the present invention includes a manifold, which is provided in a water purifier, and a circular cap, which is provided under the manifold and has a slide slot, with a protrusion provided under the circular cap. The filter assembly further includes a filter cartridge, which has a head part coupled to the circular cap and a filter part provided with a filter therein. The filter assembly further includes a fastening member, which fastens the head part of the filter cartridge to the circular cap, and a guide groove, into which the protrusion is inserted, and which is formed in the upper surface of the filter part of the filter cartridge. Therefore, processes of coupling and removing the filter cartridge are made easy and convenient.

Abstract: Disclosed herein is a filter assembly for water purifiers. The filter assembly includes a head having an inlet duct, a control valve, and an outlet duct. A circular cap is provided on the lower portion of the head, and has cylindrical space. A filter cap is mounted to the circular cap. A filter cartridge has a filtering part which is provided with a filter to purify water. A plurality of fastening holes is formed in the outer circumference of the circular cap, and has a step. Locking parts are disposed in the fastening holes to lock the filter cartridge. An elastic member surrounds the circular cap and the outer surfaces of the supports parts, thus elastically supporting the locking parts to the fastening holes. The filter cap has on the outer circumference of the upper portion thereof a plurality of fastening holes into which the locking parts are fitted.

Abstract: A water purification filter assembly is disclosed. The water purification filter assembly of the present invention includes a manifold, which is provided in a water purifier, and a circular cap, which is provided under the manifold and has a slide slot, with a protrusion provided under the circular cap. The filter assembly further includes a filter cartridge which has a head part-coupled to the circular cap and has a filter part provided with a filter therein. The filter assembly further includes a fastening member, which fastens the head part of the filter cartridge to the circular cap, and a guide groove, into which the protrusion is inserted. The fastening member is formed in the upper surface of the filter part of the filter cartridge. Therefore, processes of coupling and removing the filter cartridge are made easy and convenient.

Abstract: A water purifier includes a head which is defined with a guide passage in communication with an inlet port. an outlet port, and a filter body which purifies the fluid flowing therein through the guide passage of the head and transfers purified fluid to the outlet port of the head. The filter of the present invention includes a fluid flow interrupter which is disposed in the guide passage to controllably open and close the guide passage by spring force when the head and the filter body are coupled to and de-coupled from each other. There is at least one through-hole which is defined on an upper end of the filter body so that fluid having passed through the guide passage can flow through the through-hole into the filter body.