JP2002059153A - Water purifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure the contents of chlorine in passing city water, in a water purifier which is attached to a meter box, etc., and filters and sterilizes water used in a household in a lump. SOLUTION: This water purifier is provided with a filter including a first filter part 9 having a function of removing chlorine contained in passing city water, and a second filter part 11 having functions of sterilization and activation of water and addition of mineral, etc., and a bypass, by which a prescribed quantity of city water passing through the filter is passed through the second filter 11 without having to pass through the fist filter 9, is arranged in the device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a water purifier,
In particular, the present invention relates to a water purifier that is attached to a meter box of each household and used to collectively filter and sterilize water used at home at an entrance.

[0002]

2. Description of the Related Art Conventionally, water purifiers for tap water generally used for home use are individually provided at an end where tap water is discharged, such as a tap for a kitchen sink, a pouring port for a water heater for a bathroom, and the like. It is used connected to piping. FIGS. 7 and 8 show an example of a longitudinal sectional structure of such a conventional water purifier 1.

[0003] In the state of use of this water purifier 1, FIG.
As shown in FIG. 8 and FIG. 8, tap water flowing out of the tap 2 flows into the water purifier 1 through a pipe 3 from an inflow-side pipe connection part 4 a provided on one side of the substrate part 4. As shown by arrows in FIG. 8, the inflowing water passes through an annular groove 4b provided on the upper surface of the base portion 4 and between the cylindrical casing 5 made of SUS305 sheet metal and the turbidity filter 7 made of nonwoven fabric or the like. Into the annular gap 6. The water in the gap 6 rises in the gap 6 and gradually flows inward, passes through the turbidity filter 7, and flows into the annular gap 8 between the turbidity filter 7 and the fibrous activated carbon filter 9. I do. The water in the gap 9 rises inside the gap 9 and gradually flows inward, passes through the fiber activated carbon filter 9,
It flows into the annular gap 10 between the fiber activated carbon filter 9 and the ceramic filter 11 and rises.

The turbidity filter 7, the fiber activated carbon filter 9 and the ceramic filter 11 are placed on the base 4
It is supported via a filter support plate 13. Also,
The upper ends of the turbidity filter 7, the fiber activated carbon filter 9 and the ceramic filter 11 are fitted to the lower surface of the upper plate 14, and the upper plate 14 is further covered by a head cap 15, so that the upper plate 14 An upper space 16 is formed between the upper space 16 and the cap 15.

The water that has passed through the turbidity filter 7 and the fiber activated carbon filter 9 or has risen in the annular gaps 6, 8 and 10 flows into the ceramic filter 11 from above. The water that has descended in the ceramic filter 11 is
It passes through the antibacterial filter 12, flows into the base 4, and flows out of the water injection pipe 13 through the outflow-side pipe connection 4b.

As a method of filtering tap water by the water purifier 1, foreign matter having a size of 30 μm or more is first removed by a turbidity filter 7, chlorine and organic substances are removed by a fiber activated carbon filter 9, and then a ceramic filter 11 is removed. Contact with ceramics. The ceramic filter 11 includes piezoelectric electronic ceramics for improving surface activity and penetrating power, far-infrared ceramics for improving dissolving power and thermal conductivity, mineral ceramics for improving taste, improving dissolving power and penetrating power. It contains five types of ceramic grains: magnetic ceramics for anti-corrosion, and copper ion ceramics for antibacterial purposes.

A part of the water rising in the annular gap 6 along the inner periphery of the cylindrical casing 5 flows into the upper space 16 from the gap between the outer edge of the upper plate 14 and the contact portion between the head cap 15. Since the upper space 16 is in a closed state, the inflowing water stays in the upper space 16. Therefore, all of the water flowing in from the inflow side pipe connection portion 4a and outflowing from the outflow side pipe connection portion 4c is the fiber activated carbon filter 9.
, And chlorine is removed in the fiber activated carbon filter 9.

A female screw portion 15a is provided at the upper center of the head cap 15, and a male screw portion of a bolt-shaped valve 17 is screwed to the female screw portion 15a. An air vent hole 19 is formed in the male screw portion of the bolt-shaped valve 17. In the state shown in FIG. 9A in which the bolt-shaped valve 17 is tightened, the upper space 16 is sealed by the concave ring 18, and the air vent hole is formed. 19
Is disconnected from the outside. The state shown in FIG. 9B, that is, the upper end of the air vent hole 19 is the female screw portion 15a.
When the bolt-shaped valve 17 is opened to a position above the upper end of the upper space 16, the upper space 16 communicates with the outside through the air vent hole 19, whereby the air accumulated in the upper space 16 can be released to the outside.

In Japan, chlorine sterilization is required based on water quality standards. According to the provisions of this water quality standard, the chlorine concentration of water coming out of a tap should be 0.1 ppm or more. In the case of a faucet direct connection type water purifier,
To remove chlorine from tap water just before using it for drinking and to make the water quality suitable for drinking does not violate water quality standards in particular. That is, even if 100% of chlorine contained in the water coming out of the tap is removed by the water purifier, no particular problem occurs.

[0010]

In recent years, water purifiers have been installed in a meter box or the like of a condominium between a water main from a water purification facility and a branch pipe to a water supply device at the end of the house, and are used at home. There is an increasing demand for supplying tap water to a tap in a kitchen sink or a water heater in a bathroom after filtering and disinfecting water collectively. In the case of such a water purifier, by using a relatively spacious space called a meter box, the space near the individual water supply equipment at the end of the home, such as a kitchen, can be used more widely. There are advantages.

However, in such a water purifier, if 100% of the chlorine is removed, the water quality standard that the water discharged from the water tap must have a chlorine concentration of 0.1 ppm or more is not observed. . In addition, when the water supply equipment at the end of the household is not used for a long time, tap water containing almost no chlorine stays in the branch pipe for a long time, and there is a possibility that corrosion and various germs may be generated.

In order to solve such a conventional problem,
INDUSTRIAL APPLICABILITY The present invention makes it possible to secure the chlorine content of passing tap water in a water purifier that is attached to a meter box or the like and collectively filters and sterilizes water used at home. The purpose is to:

[0013]

The water purifier of the present invention that achieves the above object has a first filter section having a function of removing chlorine contained in passing tap water, an antibacterial agent, an activation of water and an activation of water. And a second filter unit having one or more functions of mineral addition. A water purifier provided with a filter, wherein a predetermined amount of tap water passing through the filter is passed through the first filter unit. A bypass channel is provided for passing the second filter section without passing the filter.

According to the present invention having such a configuration, the tap water passing through the bypass flow path passes through the filter in a state containing chlorine since the tap water does not pass through the first filter section. To merge with tap water that does not pass through the road, as a whole tap water that passes through the filter,
A predetermined chlorine content is ensured. Therefore, by applying it to a water purifier used to filter and sanitize water used at home at the entrance by attaching it to a meter box etc., the chlorine concentration flowing out from the terminal water equipment such as a faucet etc. It can be maintained to the extent that it meets the criteria. Further, when water stays in the branch pipe between the water purifier and the water supply equipment at the end, it is also possible to secure a chlorine concentration that prevents corrosion of water and generation of various bacteria.

In the water purifier of the present invention, preferably, of the tap water passing through the filter, the flow rate of tap water passing through both the first and second filter sections and the flow rate of tap water passing through the bypass flow path are determined. Is further provided.

According to such a configuration, the flow rate of the tap water passing only through the second filter section without passing through the first filter section is appropriately increased or decreased by the flow rate adjusting means, so that the chlorine in the first filter section is increased. The chlorine content of the water after passing through the water purifier can be set as required by adjusting the proportion of water flowing out of the water purifier without being subjected to the removing action.

The water purifier of the present invention having such a function is, as a more specific configuration, a base including a pipe connection portion on the inflow side and the outflow side of tap water, and a tube fixed on the base. A cylindrical casing, a filter provided in the cylindrical casing, and a head cap for shielding an upper end of the cylindrical casing. The filter forms a hollow cylindrical body that is disposed substantially concentrically with an inner circumferential surface of the cylindrical casing with an annular gap in the cylindrical casing, and has a function of removing chlorine contained in passing tap water. A first filter portion having a lower function of removing chlorine than the first filter portion, the second filter portion being disposed at a position surrounded by the first filter portion, and upper ends of the first and second filter portions. And a top plate forming an upper space between the head cap and the head cap. At the approximate center of the upper plate, a through-hole communicating between the space adjacent to the upper end of the second filter portion and the upper space is provided, and the upper space is formed from the gap between the peripheral edge of the upper plate and the head cap. A flowing water channel that passes through the through hole is used as a bypass flow path, and a predetermined amount of tap water that passes through the filter flows through the bypass flow path.

In a preferred embodiment of the water purifier,
The head cap is provided with an opening degree adjusting means capable of externally adjusting the degree of opening of the through hole into the upper space, and the opening degree adjusting means adjusts the flow rate of tap water flowing through the bypass flow path. The opening adjusting means includes, for example, a female screw portion fixed substantially at the center of the head cap, and a male screw portion screwed with the female screw portion and having a distal end arranged so as to shield the through hole. The degree of opening of the through hole into the upper space is changed in accordance with the movement of the male screw part by rotating the part.

By having such a structure, the degree of chlorine removal in the water purifier can be adjusted by a relatively simple mechanism, and as a result, chlorine in the water supply equipment at the end of the household satisfying the water quality standard can be adjusted. The concentration can be ensured. In addition, if necessary, when water stays in the branch pipe between the water purifier and the water supply equipment at the end of the house, it is possible to secure a chlorine concentration sufficient to prevent the occurrence of corrosion and various germs. .

In the male screw portion of such an opening adjusting means,
By providing an air vent hole that communicates the upper space with the outside in a state where the tip is located at a predetermined distance from the opening end of the through hole, air accumulated in the upper space can be released to the outside, It is possible to prevent various inconvenient phenomena such as a water hammer from occurring due to accumulation of air in the space.

[0021]

(Embodiment 1) Hereinafter, a water purifier 31 according to Embodiment 1 of the present invention will be described with reference to FIGS. The water purifier 31 of the present embodiment is shown in FIG.
As schematically shown in FIG. 2, the water supply pipe 33 is installed in a meter box 32 indicated by a two-dot chain line. It is connected near the meter 35. One end of a branch pipe 34 is connected to the outflow-side pipe connection part 4 b of the base part 4, and a pipe 34 branched from the branch pipe 34.
a, 34b, 34c and 34d are respectively connected to terminal water supply equipment such as a water tap in a kitchen at home and a water heater in a bathroom.

Next, the structure of the water purifier 31 and the operation in the state of use will be described. As shown in FIGS. 1 and 2, the water that has flowed into the water purifier 31 from the water main 32 through the inflow-side pipe connection part 4 a is provided on the upper surface of the base part 4 as shown by an arrow in FIG. 2. Through the annular groove 4b, S
It flows into an annular gap 6 between a tubular casing 5 made of US305 sheet metal and a turbidity filter 7 made of nonwoven fabric or the like. The water in the gap 6 rises in the gap 6 and gradually flows inward, passes through the turbidity filter 7, and flows into the annular gap 8 between the turbidity filter 7 and the fibrous activated carbon filter 9. I do. The water in the gap 9 rises inside the gap 9 and gradually flows inward, passes through the fiber activated carbon filter 9, and flows into the annular gap 10 between the fiber activated carbon filter 9 and the ceramic filter 11. To rise.

The turbidity filter 7, the fiber activated carbon filter 9 and the ceramic filter 11 are placed on the base 4
It is supported via a filter support plate 13. Also,
The upper ends of the turbidity filter 7, the fiber activated carbon filter 9 and the ceramic filter 11 are fitted to the lower surface of the upper plate 114, and the upper plate 114 is further covered by the head cap 15, and the upper plate 114 and the head Cap 15
To form an upper space 16.

A female screw portion 15a is provided at the center upper portion of the head cap 15, and a male screw portion of a bolt-shaped valve 17 is screwed to the female screw portion 15a. An air vent hole 19 is formed in the male screw portion of the valve 17, and the air removing operation by the air vent hole 19 is as described with reference to FIGS. 9A and 9B in the above conventional example.

The water that has passed through the turbidity filter 7 and the fiber activated carbon filter 9 or that has risen in the annular gaps 6, 8, and 10 flows into the ceramic filter 11 from above. The water that has descended in the ceramic filter 11 is
After passing through the antibacterial filter 12, it flows into the base 4, and flows out to the branch pipe 34 via the outflow-side pipe connection 4 b.

The above-described components of the water purifier 31 of the present embodiment are the same as those of the conventional water purifier 1 described above, and the specific functions of the respective filters and the tap water by the water purifier 31 are described. The filtering method is the same as that of the water purifier 1 described above. The structure of the water purifier 31 of the present embodiment differs from the conventional water purifier 1 in that a through-hole 114a is provided in the center of the upper plate 114 of the water purifier 31.

Part of the water rising in the annular gap 6 along the inner periphery of the cylindrical casing 5 flows into the upper space 16 from the gap between the outer edge of the upper plate 14 and the contact portion between the head cap 15 and The inflowing water flows into the filter through the through-hole 114a without staying in the upper space 16, and merges with other water passing through the ceramic filter 11 and the antibacterial filter 12. That is, the space between the outer edge of the upper plate 14 and the contact portion between the head cap 15 and the upper space 16
The flow path reaching the through-hole 114a via the above constitutes a bypass flow path that bypasses the fiber activated carbon filter 9 and bypasses it.

As described above, in the water purifier 31 of the present embodiment, as in the case of the conventional water purifier 1, the water flowing in from the inflow-side pipe connection 4a and flowing out from the outflow-side pipe connection 4c is provided. Not all passes through the fiber activated carbon filter 9 but some tap water is
Pass through the bypass flow path which avoids the passage of air. for that reason,
Most of the chlorine contained in this part of the water remains without being removed, and as a result, the content of chlorine contained in the tap water passing through the water purifier 31 can be ensured.

By appropriately changing the opening diameter and length of the through-hole 114a and changing the flow rate ratio of the tap water flowing through the bypass flow passage, the chlorine of the tap water passing through the water purifier 31 can be adjusted to a necessary concentration. It is possible to set.

(Embodiment 2) Next, a water purifier 41 according to Embodiment 2 of the present invention will be described with reference to FIGS. The structure of the water purifier 41 of the present embodiment is different from that of the first embodiment in that the opening of the through hole 114a of the upper plate 114 into the upper space 16 is opened and closed as a bolt-shaped adjusting means. The other point is that the bypass valve 117 is provided, and the other structure is the same as that of the first embodiment. Therefore, in FIGS. 3 to 5, the same reference numerals as those in FIGS. 1 and 2 denote the same elements as those in the first embodiment, and a detailed description thereof will be omitted. Also,
The aspect of the pipe connection in the meter box is the same as that of the water purifier 41 of the present embodiment.
Is the same as

In this embodiment, the state shown in FIG. 3, ie, the lower end of the bypass valve 117 is
In a state in which a is shielded, the tap water flowing into the upper space 16 from the gap between the outer peripheral edge of the upper plate 114 and the contact portion between the head cap 15 stays in the upper space similarly to the above-described conventional example. I do. Therefore, in this state, all tap water passing through the water purifier 41 of the present embodiment passes through the fiber activated carbon filter 9, and chlorine is removed by the fiber activated carbon filter 9.

Depending on the concentration of chlorine contained in the tap water supplied from the water purification facility through the water main 33, the water exits from a terminal water supply device such as a kitchen water tap via the branch pipe 34 through each of the pipes 34a to 34d. As a result of the removal of chlorine by the fiber activated carbon filter 9, chlorine in tap water may not satisfy the chlorine concentration of 0.1 ppm or more specified in the water quality standard. In such a case, the state shown in FIG. 4, that is, the opening to the upper space 16 of the through hole 114a of the upper plate 114 is opened by rotating the bypass valve 117 to move it upward. .

In this state, a part of the water which rises in the annular gap 6 along the inner periphery of the cylindrical casing 5 is transferred from the gap between the outer edge of the upper plate 14 and the contact portion between the head cap 15 into the upper space 16. The water flows into the filter through the through hole 114a without staying in the upper space 16, and merges with other water passing through the ceramic filter 11 and the antibacterial filter 12. That is, the flow path extending from the gap between the outer edge of the upper plate 14 and the contact portion between the head cap 15 and the through hole 114a via the upper space 16 forms a bypass flow path as in the case of the first embodiment.

As described above, also in the water purifier 41 of the present embodiment, a part of the tap water passes through the bypass flow path which avoids the passage of the fiber activated carbon filter 9, so that the chlorine contained in the water is partly contained. Many remain without being removed,
As a result, the content of chlorine contained in the tap water passing through the water purifier 31 can be ensured. By changing the distance between the lower end of the bypass valve 117 and the opening of the through-hole 114a, the fluid resistance of the bypass flow path increases or decreases, so that the ratio of tap water flowing through the bypass flow path changes. By utilizing this phenomenon, the chlorine concentration of tap water passing through the water purifier 41 is set to a desired value by appropriately adjusting the distance between the lower end of the bypass valve 117 and the opening of the through hole 114a. Is possible.

FIG. 5A is an enlarged sectional view of the vicinity of the bypass valve 117 in the state shown in FIGS.
This is shown in FIG. 4 and 5B, the arrow penetrating through the through hole 114a indicates the flow direction of the tap water flowing through the gap between the lower end of the bypass valve 117 and the opening of the through hole 114a. In the vicinity of the upper end of the shaft portion extending downward from the grip portion at the upper end of the bypass valve 117, a male screw that is screwed with a female screw portion 15a provided at the upper center of the head cap 15 is formed, and the grip portion is rotated. As a result, the bypass valve 117 moves up and down.

The shaft portion of the bypass valve 117 is formed with an air vent hole 119 extending upward from the lower end thereof along the central axis and branching left and right near the upper end of the shaft portion and opening on the side surface. In the state shown in FIG.
Since the opening to the side surface of the air vent hole 119 is located below the concave ring 18, the air vent hole 119 does not communicate with the outside. Further, the bypass valve 117 is pivoted up to raise the air vent hole 119 as shown in FIG.
In the state where the opening to the side surface is located above the concave ring 18, the air vent hole 119 communicates with the outside, so that the air accumulated in the upper space 16 can be released to the outside.

Third Embodiment Next, a water purifier 51 according to a third embodiment of the present invention will be described with reference to FIG.
The structure of the water purifier 51 of the present embodiment is different from that of the second embodiment in that the upper space 1 of the through-hole 114a of the upper plate 114
Only the structure of the bypass passage opening adjusting means including the bypass valve 217 for opening and closing the opening to the opening 6 is the same as that of the second embodiment. Therefore, in FIG.
The same reference numerals as those in FIGS. 1 to 5 denote the same elements as in FIGS. 1 to 5, and a detailed description thereof will be omitted. Further, the manner of connecting the pipes in the meter box is the same as that of the water purifier 31 shown in FIG. 1 in the water purifier 51 of the present embodiment.

In the water purifier 51 of the present embodiment, a rubber member 214a having a fine hole penetrating vertically is fitted into the center through hole of the upper plate 214a.
The thin hole 4a is shielded by the lower end of a bolt-shaped bypass valve 217 provided at the center of the head cap 15. A protrusion 217 is provided at the lower end of the bypass valve 217.
6 (a) and 6 (b) in which the bypass valve 217 cuts off the bypass flow path, the protrusion 217a fits into the upper part of the through hole of the rubber member 214a, The upper end of the through hole is securely closed.

When the bypass valve 217 releases the blockage of the bypass flow path, the bypass valve 217 is moved upward by rotating it, and the through hole of the rubber member 214a is moved upward as shown in FIG. The space 16 is communicated with the space 16. As the material of the rubber member, for example, nitrile butyl rubber (NBR), silicon rubber, or the like is applied.

In the present embodiment, a male screw is formed at the lower end of the female screw portion 15a at the center of the head cap 15, and an external thread formed on the concave ring cap 15b is screwed into this male screw. A concave ring 15c is provided between the lower end of the female screw portion 15a and the concave ring cap 15b.
Is sandwiched, whereby a seal is formed between the upper space 16 and the outside.

According to the structure of this embodiment, the lower end of the bypass valve 217 is brought into contact with the opening of the narrow hole penetrating the elastic rubber member 214a. Projection 217a provided at lower end
Is fitted to the narrow hole of the rubber member 214a, so that it is possible to shield the bypass flow path with a relatively simple structure and maintain a good sealing state, and to establish the communication state of the bypass flow path. Switching to the mode can also be easily performed.

The above embodiment is merely an embodied example embodying the present invention, and the present invention includes various aspects in which the configurations described in the claims are modified within an equivalent scope. .

[0043]

As described above, according to the present invention,
Since the tap water passing through the bypass flow path does not pass through the first filter unit, passes through the filter in a state containing chlorine, and merges with the tap water not passing through the bypass flow path,
A predetermined chlorine content is ensured for the entire tap water passing through the filter. Therefore, water used at home attached to a meter box etc. is filtered at the entrance collectively,
By applying the present invention to a water purifier used for disinfecting bacteria, it is possible to maintain the concentration of chlorine flowing out of a terminal water supply device such as a water tap at a level that satisfies a water quality standard.
Further, when water stays in the branch pipe between the water purifier and the water supply equipment at the end, it is also possible to secure a chlorine concentration that prevents corrosion of water and generation of various bacteria.

Further, in the water purifier of the present invention, of the tap water passing through the filter, the flow rate of tap water passing through both the first and second filter sections and the flow rate of tap water passing through the bypass flow path are determined. Is further provided with a flow ratio adjusting means for adjusting the ratio of water, the ratio of water flowing out of the water purifier without being subjected to the chlorine removing action in the first filter section is adjusted, and the chlorine content of the water after passing through the water purifier is adjusted. The amount can be set to be as required.

[Brief description of the drawings]

FIG. 1 is a diagram schematically illustrating a form of pipe connection of a water purifier in a meter box according to an embodiment of the present invention.

FIG. 2 is a view showing a vertical cross-sectional structure of the water purifier according to the first embodiment of the present invention.

FIG. 3 is a view showing a vertical cross-sectional structure of a water purifier according to a second embodiment of the present invention in a state where a bypass valve blocks a bypass flow passage.

FIG. 4 is a view showing a vertical cross-sectional structure of a water purifier according to a second embodiment of the present invention in a state in which a bypass valve has unblocked a bypass passage.

FIG. 5 is an enlarged sectional view showing the vicinity of a bypass valve of a water purifier according to a second embodiment of the present invention, wherein (a) shows a state where the bypass valve blocks a bypass flow path, and (b) shows a bypass valve. Shows a state in which the shielding of the bypass flow path is released, and FIG. 3C shows a state in which the bypass valve is further opened to allow the air vent hole to communicate with the outside.

FIG. 6A is a partial longitudinal sectional view showing an upper portion including a bypass valve of a water purifier according to a third embodiment of the present invention, and FIG.
FIG. 3A is an enlarged cross-sectional view of the vicinity of the bypass valve, and FIG. 3C is an enlarged cross-sectional view of the vicinity of the bypass valve in a state where the bypass valve has unblocked the bypass passage.

FIG. 7 is a view schematically showing a form of pipe connection of a conventional water purifier directly connected to a water tap.

8 is a view showing a vertical cross-sectional structure of the conventional water purifier shown in FIG.

9 is an enlarged sectional view showing the vicinity of a bolt-shaped valve 17 of the conventional water purifier shown in FIGS. 7 and 8, wherein FIG. 9A shows a state in which an air vent hole is shielded, and FIG. Each state of communication with the outside is shown.

[Explanation of symbols]

 Reference Signs List 4 base part 4a inflow side pipe connection part 4b annular groove 4c outflow side pipe connection part 5 cylindrical casing 6,8,10 annular gap 7 turbidity filter 9 fiber activated carbon filter 11 ceramic filter 15 head cap 15a female screw part 16 upper space 17 Bolt-shaped valve 31, 41, 51 Water purifier 32 Meter box 33 Water main pipe 34 Branch pipe 114, 214 Upper plate 114a Through hole 117, 217 Bypass valve 119 Air vent hole 214a Rubber member

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C02F 1/50 560 C02F 1/50 560Z 1/68 510 1/68 510B 520 520V 530 530C 540 540A 540B 540F 540G 540Z 9/00 502 9/00 502D 502H 502L 503 503A 504 504B 504E (72) Inventor Takao Iioka 8-15F, Iwamotocho, Chiyoda-ku, Tokyo 8th Floor, Kiyasu Kanda Building Zephyr Corporation (72) Inventor Kuri Kiyotaka Iku 2-1-1, Bakurocho, Nihonbashi, Chuo-ku, Tokyo Sumitomo Bank Asakusabashi Branch Building 7F General Estate Co., Ltd. (72) Inventor Masato Honda 1-31-1, Noribori, Nishi-ku, Osaka Daita Building (72) Akiha Shinno Kiyonori 1-6-11-301 Nambuko-no-so, Amagasaki-shi (72) Inventor Kim Wen-shu 902 Mok-dong, New-City Area, 205, Dong-dong, Yangcheon-gu, Seoul, Republic of Korea F-term (reference) 4D024 AA02 AB04 AB11 BA02 BB02 BC01 CA04 CA05 CA13 DB01 DB03 DB11 DB26 DB27 4D037 AA02 AB14 BA17 CA01 CA02 CA05 CA13 CA16

Claims (7)

[Claims] 1. A first filter unit having a function of removing chlorine contained in passing tap water, and a second filter unit having at least one of antibacterial, water activation, and mineral addition functions. A water purifier provided with a filter, comprising: a bypass flow path for allowing a predetermined amount of tap water passing through the filter to pass through the second filter section without passing through the first filter section. , Water purifier. 2. Adjusting the ratio of the flow rate of the tap water passing through both the first and second filter portions and the flow rate of the tap water passing through the bypass passage, of the tap water passing through the filter. The water purifier according to claim 1, further comprising a flow ratio adjusting unit that performs the flow ratio adjustment. 3. A base including a pipe connection part on an inflow side and an outflow side of tap water; a tubular casing fixed on the base; a filter provided in the tubular casing; A head cap that shields an upper end of the cylindrical casing, wherein the filter includes a hollow cylindrical body that is disposed substantially concentrically with the inner peripheral surface of the cylindrical casing with an annular gap in the cylindrical casing. And a first filter unit having a function of removing chlorine contained in passing tap water; and a first filter unit disposed at a position surrounded by the first filter unit and having a function of removing chlorine more than the first filter unit. A lower second filter portion, and an upper plate that shields upper ends of the first and second filter portions and forms an upper space with the head cap, At a substantially center of the plate, a through hole communicating between a space adjacent to an upper end of the second filter portion and the upper space is provided, and a through hole is provided between a peripheral edge of the upper plate and the head cap. A water purifier, wherein a predetermined amount of tap water passing through the filter flows through the bypass flow passage, with a flowing water passage reaching the through hole through the upper space being a bypass flow passage. 4. The head cap is provided with an opening degree adjusting means capable of externally adjusting the degree of opening of the through hole to the upper space, and the tap water flowing through the bypass flow path by the opening degree adjusting means. The water purifier according to claim 3, wherein the water flow rate is adjusted. 5. An opening adjusting means, comprising: a female screw portion fixed substantially at the center of the head cap; and a male screw portion screwed with the female screw portion and having a distal end disposed so as to cover the through hole. 5. The water purifier according to claim 4, wherein the degree of opening of the through hole to the upper space is changed in accordance with the movement of the male screw part by rotating the male screw part. 6. 6. The male screw portion is provided with an air vent hole for communicating the upper space with the outside in a state in which the tip is located at a predetermined distance from the opening end of the through hole. 5. The water purifier according to 5. 7. A water main from a water purification facility to a water distribution destination,
The water supply device according to any one of claims 1 to 6, which is connected to a branch pipe that branches from the water main to reach a water supply device at an individual end, and collectively purifies tap water sent to the branch pipe. Water purifier.