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A water purifier that assures easier change of a used filter comprises a base, at least one filter replaceably attached to the base and including a first end with a first fluid port and a second end with a second fluid port, a first connector supporting the first end of the filter in a separable man

A water purifier that assures easier change of a used filter comprises a base, at least one filter replaceably attached to the base and including a first end with a first fluid port and a second end with a second fluid port, a first connector supporting the first end of the filter in a separable manner and including a connector port connected to the first fluid port of the filter, a second connector spaced apart from the first connector to accomodate the filter therebetween and including a bore aligned with the second fluid port of the filter, a spool fitted into the bore of the second connector for movement between an extended position allowing fluid flow and a contracted position preventing fluid flow, and a spool actuator for slidingly moving the spool between the extended position and the contracted position.

대표청구항 ▼

1. A water purifier, comprising:a base plate;at least one filter replaceably attached to said base plate and including a first end with a first fluid port and a second end with a second fluid port;a first connector means separably supporting the first end of said filter and having a connector port c

1. A water purifier, comprising:a base plate;at least one filter replaceably attached to said base plate and including a first end with a first fluid port and a second end with a second fluid port;a first connector means separably supporting the first end of said filter and having a connector port connected to the first fluid port of said filter;a second connector means spaced apart from said firs connector means at a distance sufficient to accommodate said filter therebetween and having a bore aligned with the second fluid port of said filter;a spool fitted into the bore of said second connector means for movement between an extended position wherein said spool is connected to the second fluid port of said filter to allow fluid communication between said filter and said second connector means and a contracted position wherein said spool is separated from the second fluid port of said filter to interrupt the fluid communication therebetween, said spool having an axial fluid passage; anda spool actuator means for slidingly moving said spool between said extended position and said contracted position. 2. The water purifier as recited in claim 1, wherein said first connector means comprises a rotary connector mounted to said base plate for rotation about a pivot shaft between a filter service position and a filter replacement position and wherein said second connector means comprises a fixed connector fixedly attached to said base plate. 3. The water purifier as recited in claim 2, wherein said rotary connector is provided in an upper portion of said base plate, said fixed connector is positioned in a lower portion of said base plate, and said filter is placed between said rotary and said fixed connectors. 4. The water purifier as recited in claim 1, wherein said spool actuator means includes an actuating lever mounted to said base plate so that said actuating lever can rotate about a hinge shaft, a link having one end connected to said spool and the other end connected to said actuating lever through a joint, and a door fixedly attached to said actuating lever. 5. The water purifier as recited in claim 3, wherein said fixed connector includes a feed passage through which raw water is fed and a drain passage through which purified water is discharged. 6. The water purifier as recited in claim 5, wherein said filter comprises first to fourth cylindrical filters, each cylindrical filter having an upper fluid port and a lower fluid port; said lower fluid port of said first filter is connected with said feed passage of said fixed connector; said upper fluid ports of said first and second filters communicate with each other through said rotary connector; said lower fluid ports of said second and third filters communicate with each other through said fixed connector; said upper fluid ports of said third and fourth filters communicate with each other through said rotary connector; and said lower fluid port of said fourth filter is connected with said drain passage of said fixed connector. 7. The water purifier as recited in claim 1, further comprising a filter holder for affixing said filter to said base plate. 8. The water purifier as recited in claim 3, wherein said rotary connector comprises a plurality of independently rotatable unit connectors. 9. The water purifier as recited in claim 1, wherein said spool is so constructed as to prevent water leakage out of said second connector means while said spool is in said contracted position. 10. The water purifier as recited in claim 6, wherein said first filter is a sediment filter, said second filter is a pre-carbon filter, said third filter is a reverse osmosis filter, and said fourth filter is a post-carbon filter. 11. The water purifier as recited in claim 10, further comprising a water tank for storing said purifier water discharged through said drain passage of said fixed connector.