JP3225561B2 - Filter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter for filtering drinking water and the like.

[0002]

Flow table attached to the sink embedded type filter it has come to be used in Recently filter.

Hereinafter, a conventional configuration of this type of filter will be described with reference to the drawings. FIG. 3 is a schematic view of a filter built in a sink.

In the above figure, 1 is a sink main body and 2 is a sink. Reference numeral 3 denotes a tap water supply pipe, and the tap water supply pipe 3 and the inlet side 5a of the filter main body 5 in which the cartridge is built are connected by a filter inflow pipe 4. The discharge part 5b of the filter main body 5 is connected to a dedicated faucet 7 fixed to the sink 2 of the sink 1 by a filter outlet pipe 6, thereby forming a filter with a built-in sink.

Next, FIG. 4 shows a detailed sectional view of the filter body 5. In the upper figure, reference numeral 4 denotes a filter inlet pipe, which is connected and fixed to a base 12 having a raw water inlet channel 8 through packing and sealed with water. The base 12 is fixed to the main body case 11, and a lid 13 having a filtered water outflow path 15 is joined to the upper part of the main body case 11 with a screw (not shown) to form a filter main body. A cartridge 10 enclosing a filter medium is incorporated in the filtration main body, and a raw water inlet 14 through which raw water flows is formed at a lower portion of the cartridge 10. The raw water inlet 14 is connected to the raw water inflow passage 8 of the base 12 via a 0 ring. The upper part of the cartridge 10 has a filtered water outlet 14 through which the filtered water flows out.
Is formed and connected to the filtered water outflow path 15 of the lid 13 via an O-ring. Reference numeral 6 denotes a filter outlet pipe, which is connected and fixed via a packing to a lid 13 having a filtered water outlet path 15 and sealed with water.

The raw water is filtered from the inlet pipe 4 of the filter, passed through the raw water inflow path 8 provided in the base 12, and is fed from the raw water inlet 14 of the cartridge 10, filtered by the filter medium in the cartridge 10, and filtered by the filter medium of the cartridge 10. Exit 14
The raw water that has been further filtered flows out of the filtered water outflow path 15 provided in the lid 13 to the outside through the filter outflow pipe, whereby the raw water can be filtered.

[0007]

However, in the above structure, if the raw water is filtered for a long period of time, the inside of the cartridge becomes clogged and the cartridge needs to be replaced. In this case, the filter body is built in the sink. When removing the cartridge by removing the lid from the filter main body, the water accumulated in the cartridge flows out into the filter main body or flows out into the sink, so that when replacing the cartridge, There is a problem that it is inconvenient and troublesome that the connection between the whole and the filter inlet pipe and the filter outlet pipe must be removed with a tool or the like, and the filter body must be taken out to the sink of the sink to replace the cartridge.

[0008]

SUMMARY OF THE INVENTION The present invention is directed to an integrated sink.
A type of filter , comprising: a main body case portion having an inflow port and an outflow port;
A case portion having a stop valve, and a cartridge portion for accommodating the <br/> filtering material attached to said case portion, and connecting the check valve of the casing portion and the inlet port of the cartridge unit <br The inflow port and the outflow port of the main body case are respectively provided with the check valve so that a fluid flows from the inflow port to the outflow port of the main body case when detachably stored in the main body case. It is configured Renketsuru so to an outlet of the cartridge and the.

[0009]

According to the above construction, when the cartridge is taken out and replaced, the raw water remaining in the cartridge is removed by the operation of a water drop prevention valve (check valve) built in a case portion mounted at the lower part of the cartridge. It becomes possible to take out without flowing out.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The external appearance of a filter built into a sink according to the present invention is omitted because it has the same structure as the above-mentioned conventional filter. FIG. 1 shows a detailed sectional view of the filter body of the present invention.

In FIG. 1, reference numeral 21 denotes a filter inflow pipe, which is connected and fixed to a base 23 having a raw water inflow path 22 through packing. The base 23 is fixed to the main body case 26 and has a lid 2 provided with a filtered water outflow passage 29 above the main body case 26.
7 are joined by screws to form the filter body. A filtration cartridge 28 is incorporated in the main body of the filter, and a raw water inlet 30 is formed below the cartridge 28. ing. The lower connection portion of the case 24 is inserted and connected to the raw water inflow passage 22 of the base 23 via an O-ring. A filtered water outlet 31 is formed in the upper part of the cartridge 28 and is connected to a filtered water outflow passage 29 of the lid 27 via an O-ring. Reference numeral 32 denotes a filter outflow pipe, which is fixedly connected to the filtered water outflow passage 29 of the lid 27 via packing and is sealed with water. Next, in a state where the cartridge 26 is removed from the filter main body in FIG.
Also comes off while being attached to the cartridge 26 at the same time. Therefore, when the cartridge 28 is replaced, the cartridge 24 is detached from the case 24, a new cartridge 28 is mounted on the case 24 again, and then the cartridge 28 is mounted in the filter body.

[0012]

According to the present invention, when replacing a cartridge,
By taking out at the same time as the case in which the water drop prevention valve (check valve) is built in, the raw water accumulated in the cartridge can be prevented from flowing out to the outside by the operation of the water drop prevention valve (check valve). When the cartridge is replaced, it is not necessary to take out the entire filter main body to the outside, and it is possible to easily replace the cartridge in the sink with no trouble of removing the piping with a tool or the like.

[Brief description of the drawings]

FIG. 1 is a detailed sectional view of a filter body according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a state where a cartridge is taken out of a filter main body.

FIG. 3 is a schematic view of a conventional filter incorporating a sink.

FIG. 4 is a detailed sectional view of a conventional filter main body.

[Explanation of symbols]

 Reference Signs List 22 Raw water inflow path 23 Base 24 Case 25 Drip prevention valve (check valve) 26 Main case 27 Lid 28 Cartridge 29 Filtration water outflow path 30 Raw water inflow port 31 Filtration water outflow port

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-262983 (JP, A) JP-A-3-242285 (JP, A) Japanese Utility Model Application Showa 55-91907 (JP, U) Japanese Utility Model Utility Model No. 2- 101863 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B01D 35/04

Claims (1)

(57) [Claims] 1. A filter with a built-in sink, comprising: a main body case portion having an inlet and an outlet; a case portion detachably housed below the main body case portion and having a check valve; A cartridge unit for storing a filter medium attached to the unit, wherein when the inlet port of the cartridge unit and the check valve of the case unit are connected and detachably stored in the main body case, the fluid to flow from the inlet port of the body case portion to the outlet, the main body case portion of the inlet and the outlet is connected to an outlet of each said check valve the cartridge unit, the cartridge unit is the Ke
A filter device wherein a base portion is mounted and detached from the main body case portion .