JP2011036813A - Water purifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water purifier which can maintain water purifying ability for a long period of time to reduce the exchange frequency of a water purifying cartridge while preventing a reduction of a work space in a kitchen, preventing complication around a faucet, and reducing labor and time and cost of water purifier installation work. <P>SOLUTION: The water purifier 1A includes a branch portion which has a branch portion side inflow passage 30a for allowing inflow of raw water flow from the faucet 90 into the branch portion, a branch passage 71 for allowing outflow of the raw water from the branch portion side inflow passage 30a to a water purification portion, a return passage 76 for allowing inflow of purified water from a water purification portion, and a branch portion side outflow passage 30b for allowing outflow of the raw water from the branch portion side inflow passage 30a or outflow of the purified water from the return passage 76 to the faucet 90, and the water purification portion which has a water purification portion side inflow passage 10a for allowing inflow of the raw water from the branch passage 71 of the branch portion into the water purification portion, and a water purification portion side outflow passage 10b for allowing outflow of the purified water to the return passage 76 of the branch portion, and is integrally connected to the branch portion so as to make the water purification portion side outflow passage 10b directly communicate with the branch passage 71 of the branch portion. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a water purifier technology.

  2. Description of the Related Art Conventionally, a water purifier that purifies raw water flowing through a water pipe or a faucet and purifies the raw water, wherein a water purifying unit that purifies the raw water is disposed on a kitchen cooking table, and the water purifier is discharged from the faucet outlet. A stationary type water purifier that discharges purified water purified at a section is known. For example, as shown in Patent Document 1.

  Further, the water purifier purifies the raw water flowing through the water pipe and the faucet, and purifies the raw water. The water purifier for purifying the raw water is disposed in a space under the sink in the kitchen, and is separate from the faucet. A built-in type water purifier is known in which a dedicated faucet is disposed at the edge of a sink in a kitchen and the purified water purified by the water purifier is discharged from the outlet of the dedicated faucet. For example, as shown in Patent Document 2.

  Moreover, it is a water purifier which purifies the raw water flowing through the faucet to obtain purified water, and a water purifying part for purifying the raw water is disposed in a spout in the faucet, and the purified water purified by the water purifying part is A spout built-in water purifier that discharges from the outlet of a stopper is known. For example, as shown in Patent Document 3.

JP 2008-110327 A JP 2002-1312 A JP 2001-169953 A

  However, in the stationary water purifier, the water purification unit that purifies the raw water is disposed on the kitchen cooking table, the hose that allows the raw water to flow into the water purification unit from the water supply channel of the faucet, and the water purification unit from the water purification unit Therefore, the working space on the kitchen counter is reduced, and the area around the faucet becomes complicated.

  Moreover, in the built-in type water purifier, the water purification part which purifies this raw water, and the trouble and installation cost at the time of attaching the exclusive water tap separate from the said water tap are required.

  Furthermore, in the spout built-in water purifier, since the water purification unit is built in the spout, the size of the cartridge for water purification provided in the water purification unit is the size of the cartridge for water purification provided in the stationary water purifier or the built-in type water purifier. Compared to this, the water purification capacity is limited. For this reason, in the spout built-in water purifier, the water purification capacity of the water purification cartridge provided in the water purification unit is low, and the water purification cartridge needs to be frequently replaced.

  The present invention has been made in view of the situation as described above, while preventing reduction in work space in the kitchen, preventing complications around the faucet, and reducing labor and cost of installing the water purifier. It is an object of the present invention to provide a water purifier capable of maintaining the water purification capacity over a long period of time and reducing the number of times the water purification cartridge is replaced.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in claim 1, a water purifying unit that purifies raw water to be purified water, and a branch that can flow raw water from a faucet to the water purifying unit, and can flow purified water purified by the water purifying unit to the faucet. A water purifier comprising: a branching portion side inflow passage for allowing raw water to flow into the branching portion from a faucet; and the raw water flowing out from the branching portion side inflow passage to the water purification portion. A branch flow path that allows the purified water to flow from the water purification section, a branch flow outlet that flows the raw water from the branch flow path or the purified water from the return flow path to the faucet The water purifier is attached to the faucet, and the water purifier flows in from the water purifier side inflow passage through which the raw water flows into the water purifier from the branch passage of the branch portion, and from the water purifier side inflow passage. Purified raw water is made into purified water, which can be exchanged for the water purification unit A water cartridge and a water purification unit-side outflow channel for allowing purified water to flow out of the water purification cartridge to the return channel of the branch unit, and the water purification unit side outflow channel is used as the return channel of the branch unit. It is integrally connected to the branch portion so as to directly communicate with the branch portion.

  In Claim 2, the said branch part has a plurality of said branch flow paths, and flows out raw | natural water to the said water purification part through one branch flow path from the said inflow flow path among these branch flow paths, The water purification unit is integrally connected to the branch unit so that the water purification unit side inflow channel directly communicates with one of the plurality of branch channels.

  As effects of the present invention, the following effects can be obtained.

  That is, according to the present invention, the water purification capacity is maintained for a long period of time while preventing the work space in the kitchen from being reduced, preventing the complications around the faucet, and reducing the labor and cost of installing the water purifier. Thus, it is possible to provide a water purifier that can reduce the number of times the water purification cartridge is replaced.

The side surface reduced view which showed the whole structure of the water purifier which concerns on 1st embodiment of this invention. The front reduced view which showed the whole structure of the water purifier which concerns on 1st embodiment of this invention. Side surface sectional drawing of the water purification part of the water purifier which concerns on 1st embodiment of this invention. Front sectional drawing of the water purification part of the water purifier which concerns on 1st embodiment of this invention. (A) The top view of the branch part of the water purifier which concerns on 1st embodiment of this invention, (b) The top view of the socket in the branch part of the water purifier which concerns on 1st embodiment of this invention. Side surface sectional drawing of the branch stopper of the water purifier which concerns on 1st embodiment of this invention. Front sectional drawing of the branch stopper of the water purifier which concerns on 1st embodiment of this invention. The AA sectional view of the branch tap of the water purifier concerning a first embodiment of the present invention. Side surface sectional drawing of the water purifier which concerns on 1st embodiment of this invention. The side surface reduced view which showed the whole structure of the water purifier which concerns on 2nd embodiment of this invention. The side surface reduced view which showed the whole structure of the water purifier which concerns on 2nd embodiment of this invention. The front reduced view which showed the whole structure of the water purifier which concerns on 2nd embodiment of this invention. The top view of the branch part of the water purifier which concerns on 2nd embodiment of this invention. Side surface sectional drawing of the branch part of the water purifier which concerns on 2nd embodiment of this invention. BB sectional drawing of the branch part of the water purifier which concerns on 2nd embodiment of this invention.

Next, 1 A of water purifiers which concern on 1st embodiment of this invention are demonstrated using FIGS. 1-9.
As shown in FIG.1 and FIG.2, 1 A of water purifiers comprise a water purification part and a branch part.

The water purifier in the water purifier 1 </ b> A purifies the raw water into purified water, and is constituted by the water purifier 10.
The water purifier 10 has the housing | casing 11, the cartridge 18 for water purification, the water purification part side inflow channel 10a, and the water purification part side outflow channel 10b, as shown in FIGS.
The casing 11 of the water purifier 10 is a member made of a resin material, and is formed in a bottomed cylindrical shape with the vertical direction as the axial direction. A female screw is formed on the inner peripheral surface of the upper opening in the housing 11 of the water purifier 10.
A side opening 12 is formed in the front lower part of the housing 11 so as to penetrate from the outer peripheral surface to the inner peripheral surface (perpendicular to the axis of the housing 11). A cylindrical projecting portion 13 that projects forward from the outer peripheral surface of the housing 11 is formed at the front lower portion of the housing 11 in which the side surface opening 12 is formed so as to coincide with the direction in which the side surface opening 12 penetrates. Has been. Moreover, the internal diameter in the protrusion part 13 of the housing | casing 11 of the water purifier 10 is formed a little larger than the diameter of the side surface opening 12 of the front lower part in the housing | casing 11. FIG. A female screw is formed on the inner peripheral surface of the protruding portion 13 of the housing 11.

  The protruding portion 13 of the housing 11 is provided with a first connection member 20 connected to a branch portion in the water purifier 1A. The first connection member 20 includes an insertion member 21 and a nut member 22.

  The insertion member 21 of the first connection member 20 is a cylindrical member made of a metal material. The inner diameter of the insertion member 21 is formed substantially the same as the diameter of the side opening 12 at the front lower part of the housing 11. The outer diameter of the insertion member 21 is formed substantially the same as the inner diameter of the protrusion 13 so that one end of the insertion member 21 can be inserted and joined to the protrusion 13 in the housing 11. And the other end portion) are formed larger than the inner diameter of the protruding portion 13 in the housing 11. A male screw is formed on the outer peripheral surface of one end of the insertion member 21. On the outer peripheral surface of the other end of the insertion member 21, an annular outer convex portion 21 a that protrudes outward is formed.

  The nut member 22 of the first connecting member 20 is a hexagonal nut-shaped member having an inner diameter substantially the same as the diameter of the outer convex portion 21a in the insertion member 21 and having an internal thread formed on the inner peripheral surface thereof. On the inner peripheral surface of one end of the nut member 22, an inner convex portion 22 a that protrudes inward is formed. The diameter of the inner convex portion 22 a of the nut member 22 is formed to be substantially the same as the outer diameter of the midway portion of the insertion member 21 of the first connection member 20.

The first connecting member 20 has the one end side of the insertion member 21 (the side where the outer convex portion 21a is not formed) forward and the other end side of the nut member 22 (the side where the inner convex portion 22a is not formed). The insertion member 21 is inserted into the nut member 22 from one end side so as to face rearward, and the outer convex portion 21a of the insertion member 21 and the inner convex portion 22a of the nut member 22 are locked. The
The first connection member 20 configured as described above is inserted into the protruding portion 13 of the housing 11 from one end side of the insertion member 21, and a male screw formed at one end portion of the insertion member 21. The housing 11 is provided on the housing 11 by screwing a female screw formed on the protruding portion 13 of the housing 11 and joining them.
Further, by providing the first connecting member 20 in the housing 11 in this way, the space in the insertion member 21 in the first connecting member 20 is the space in the housing 11 through the space in the protruding portion 13. It will communicate with.

A bottom surface opening 14 is formed at the bottom of the casing 11 of the water purifier 10 so as to penetrate from the outer bottom surface to the inner bottom surface along the axis.
On the inner and lower surfaces of the housing 11 in which the lower surface opening 14 is formed, a cylindrical mounting portion 15 that protrudes upward from the inner and lower surfaces of the housing 11 is formed so as to coincide with the axial direction of the lower surface opening 14. Has been. Further, the inner diameter of the mounting portion 15 of the housing 11 is slightly larger than the inner diameter of the lower surface opening 14 on the inner and lower surfaces of the housing 11.

The lower surface opening 14 formed on the lower surface (bottom portion) of the housing 11 is provided with a second connection member 25 connected to the branch portion in the water purifier 1A.
The second connection member 25 is a member made of a metal material, and has a cylindrical portion 26 and a hexagonal portion 27. The cylindrical portion 26 of the second connection member 25 is formed in a cylindrical shape, and the hexagonal portion 27 is formed in a hexagonal column shape. The second connecting member 25 is configured such that the hexagonal portion 27 is integrally provided on one side surface of the cylindrical portion 26 so that the axial centers of the cylindrical portion 26 and the hexagonal portion 27 coincide with each other. Further, the second connecting member 25 is formed with a through-hole penetrating the respective axial centers of the cylindrical portion 26 and the hexagonal portion 27.

The outer diameter of the cylindrical portion 26 in the second connection member 25 is substantially the same as the inner diameter of the through hole formed in the lower surface of the housing 11 so that it can be inserted into the through hole on the lower surface of the housing 11 and joined. It is configured.
Further, the length of the cylindrical portion 26 in the second connecting member 25 in the axial direction is such that when the cylindrical portion 26 is inserted into the through hole on the lower surface of the housing 11, the tip of the cylindrical portion 26 is placed on the mounting portion of the housing 11. 15 so that it is shorter than the length of the lower surface of the housing 11 in the thickness direction. A male screw is formed on the outer peripheral surface of the cylindrical portion 26 in the second connection member 25.

Then, the second connecting member 25 configured as described above is inserted into the lower surface opening 14 formed on the lower surface of the casing 11 from the tip of the cylindrical portion 26, and the male formed on the cylindrical portion 26. The screw 11 and the female screw formed on the lower surface of the housing 11 in the water purifier 10 are screwed together and joined to each other so that the housing 11 is provided.
In addition, by providing the second connection member 25 in the housing 11 in this way, the through hole of the second connection member 25 communicates with the space in the housing 11 through the space in the placement portion 15. It will be.

The water purification cartridge 18 in the water purification apparatus 10 is composed of a multilayer filter made of nonwoven fabric, activated carbon fiber, or the like, and is disposed in the casing 11 of the water purification apparatus 10, and impurities (turbidity components and Chlorine and certain fungi are removed and purified, and the raw water is used as purified water.
Further, the water purification cartridge 18 is formed in a columnar shape, and the length in the axial center direction is from the length from the inner bottom surface to the upper end portion of the housing 11 to the placement portion 15 from the inner bottom surface of the housing 11. It is formed substantially the same as the length obtained by subtracting the length to the upper end portion of. The outer diameter of the water purification cartridge 18 is configured to be smaller than the inner diameter of the housing 11. When the water purification cartridge 18 is disposed in the housing 11, the peripheral surface of the water purification cartridge 18 and the housing 11 are arranged. A predetermined space is formed between the inner peripheral surface and the inner peripheral surface.

The water purification cartridge 18 configured as described above is placed on the placement portion 15 of the casing 11 so as to coincide with the axis of the casing 11 and the axis of the casing 11, and is disposed in the casing 11. The
Thus, by arranging the water purification cartridge 18 in the housing 11, the predetermined space formed between the peripheral surface of the water purification cartridge 18 and the inner peripheral surface of the housing 11 is The space in the first connecting member 20 communicates with the space in the protruding portion 13. On the other hand, when the water purification cartridge 18 is arranged in the casing 11 in this way, the predetermined space formed between the peripheral surface of the water purification cartridge 18 and the inner peripheral surface of the casing 11 is used for water purification. The cartridge 18 and the through hole of the second connection member 25 are communicated with each other through the space in the placement portion 15 of the housing 11.

A predetermined space formed between the peripheral surface of the water purification cartridge 18 and the inner peripheral surface of the housing 11, a space in the protruding portion 13 of the housing 11, and a space in the first connection member 20, The water purifying part side outflow channel 10b in the water purifying part is configured. The water purification unit side outflow channel 10b in the water purifier 10 is a channel through which purified water flows out from the water purification cartridge 18 to the return channel of the branching unit.
Moreover, the space in the mounting part 15 of the housing | casing 11 and the through-hole of the 2nd connection member 25 comprise the water purification part side inflow channel 10a in a water purification part. The water purification unit side inflow channel 10a in the water purification unit is a channel through which raw water flows into the water purification unit (inside the casing 11) from the branch channel of the branch unit.
The water purification cartridge 18 disposed in the housing 11 is replaced with a new water purification cartridge 18 when the water purification capacity is lowered. That is, the water purification cartridge 18 is provided so as to be replaceable with respect to the water purification unit.

The lid member 16 is a member made of a resin material, and is a member that closes an upper opening in the housing 11. The upper part of the lid member 16 is formed in a disk shape having a diameter substantially the same as the outer diameter of the housing 11, and the lower part is formed in a cylindrical shape protruding downward from the shape part.
The outer diameter of the lower part of the lid member 16 is formed so as to be substantially the same as the inner diameter of the opening of the casing 11 so that it can be inserted into the upper opening of the casing 11 and joined. A positioning groove is formed on the outer peripheral surface of the upper end portion of the lower portion of the lid member 16, and an O-ring is fitted in the positioning groove. ing. A male screw is formed on the outer peripheral surface below the upper end portion of the lower portion of the lid member 16.
The lid member 16 configured in this manner is inserted into the upper opening in the housing 11 from the lower portion thereof, and the male screw formed in the lower portion of the lid member 16 and the upper opening portion in the housing 11 The housing 11 is covered by screwing the female screws formed on the two and joining them together. Then, by covering the housing 11 with the lid member 16 in this way, the upper opening in the housing 11 is sealed watertight by the O-ring of the lid member 16.
In the water purifier 10, the casing 11 is disposed in the casing 11 by opening the lid (opening the joint between the lid member 16 and the casing 11 and removing the lid member 16 from the casing 11). The water purification cartridge 18 can be replaced with a new water purification cartridge 18.

Next, the branch part in 1 A of water purifiers is demonstrated.
The branch portion in the water purifier 1A is attached to the faucet 90 so that the raw water can flow out from the faucet 90 to the water purifier (water purifier 10) and the purified water purified by the water purifier (water purifier 10) is faucet 90. As shown in FIG. 5 to FIG. 8, it is constituted by a branch plug 30.

  The branch plug 30 includes a branch plug body 31, two branch members 70, 70, a return member 75, and an opening / closing member 80.

The branch plug main body 31 of the branch plug 30 includes an inner member 32 and an outer member 33.
The inner member 32 of the branch plug main body 31 is configured in a double cylinder shape having an inner cylinder part and an outer cylinder part.
The outer cylinder portion of the inner member 32 of the branch plug main body 31 is constituted by a socket 40. The socket 40 of the inner member 32 is a member made of a metal material, and is formed in a substantially cylindrical shape with the vertical direction as the axial direction.
On the left and right sides of the upper portion of the socket 40, through holes penetrating from the outer peripheral surface to the inner peripheral surface are formed so as to be symmetrical. That is, each through hole in the socket 40 is formed in the socket 40 so that the vertical positions thereof are the same. A female screw is formed on the inner peripheral surface of each through hole in the socket 40.
Hereinafter, the left through-hole in the socket 40 is referred to as a first through-hole 41, and the right through-hole is referred to as a second through-hole 42.

  Before and after the upper portion of the socket 40 (just below the upper end portion of the socket 40), thin portions 43 and 43 that are thinned by chamfering the outer peripheral surface with the upper end portion of the socket 40 remaining are formed. Yes. That is, by chamfering the front and rear outer peripheral surfaces at the upper part of the socket 40, the thin portions 43 and 43 of the socket 40 are respectively arranged at the front and rear of the upper part of the socket 40 so that the outer surfaces of the socket 40 are parallel and symmetric with respect to each other. Is formed. Further, the thin portions 43 and 43 of the socket 40 are formed so as to reach below the first through hole 41 and the second through hole 42, respectively.

An annular inner convex portion 44 that protrudes inward from the inner peripheral surface is formed below the first through hole 41 and the second through hole 42 of the socket 40 and above the lower end portion of the thin portion 43. . A positioning groove is formed on the inner peripheral surface of the inner convex portion 44, and an O-ring 52 is fitted in the positioning groove.
In the following, a portion of the cylindrical socket 40 penetrating vertically is referred to as an upper space X that is located above the portion where the inner convex portion 44 is formed.
A first through hole 41, a second through hole 42, and thin portions 43 and 43 are formed in the socket 40 where the upper space X is disposed.

  In the thin portions 43 and 43 of the socket 40, the outer surfaces of the thin portions 43 and 43 are notched inwardly at positions below the positions where the inner convex portions 44 are formed, so that the socket 40 penetrates from the outer surface to the inner peripheral surface. Cutout portions 45 and 45 are formed. The notch portions 45 and 45 of the socket 40 are notched so that the lower end portion of the thin portion 43 of the socket 40 extends from the outer surface to the inner peripheral surface of the socket 40 so that the outer surfaces of the socket 40 are parallel and symmetrical in the longitudinal direction. It is formed.

A positioning groove is formed on the outer peripheral surface of the upper and lower center part of the socket 40 (just below the notch 45 of the socket 40), and an O-ring 53 is fitted in the positioning groove.
Further, an annular outer convex portion 46 that protrudes outward from the outer peripheral surface is formed immediately below the portion of the socket 40 where the O-ring 53 is inserted.

An inner peripheral surface and an outer peripheral surface of the lower end portion of the socket 40 are formed to have a slightly wide diameter, and a packing 48 is disposed inside the formed wide diameter via a washer 47.
Through holes are formed in the front, rear, left and right of the lower part of the socket 40 (immediately above the lower end formed with a wide diameter) so as to penetrate from the outer peripheral surface to the inner peripheral surface. The lower through-hole in the socket 40 is configured as an outlet 49 for flowing raw water or purified water into the supply channel 91 of the faucet 90.

  An inner cylinder portion of the inner member 32 of the branch plug main body 31 is constituted by a pipe material 50. The pipe member 50 of the inner member 32 is a member made of a metal material, and is a cylindrical member having the vertical direction as the axial direction. The pipe member 50 is formed so that the length in the axial center direction is substantially the same as the length from the inner convex portion 44 of the socket 40 to the lower end portion of the socket 40. The pipe member 50 is formed so that the outer diameter thereof is substantially the same as the inner diameter of the inner convex portion 44 of the socket 40.

Then, the pipe member 50 is inserted and inserted into the inner convex portion 44 (O-ring 52) of the socket 40 so that the axial center of the pipe member 50 and the axial center of the socket 40 coincide with each other. In the socket 40.
By arranging the pipe member 50 in the socket 40 in this way, the inner member 32 of the branch plug main body 31 is configured in a double cylinder shape having an inner cylinder part (pipe material 50) and an outer cylinder part (socket 40). Is done.

The lower opening of the pipe member 50 arranged in this way is configured as an inlet 51 through which raw water flows from the supply flow channel 91 of the faucet 90.
In addition, the internal space of the pipe member 50 in the inner member 32 is such that when the branch plug 30 is attached to the faucet 90, the branch portion side inflow channel 30 a of the branch plug 30 that communicates with the supply channel 91 of the faucet 90. Configured as That is, the branch portion side inflow channel 30 a is formed in the inner cylinder portion (pipe material 50) of the inner member 32 of the branch plug body 31. Here, the branch portion side inflow channel 30 a of the branch plug 30 indicates a channel for allowing raw water to flow from the supply channel 91 of the faucet 90 into the branch plug 30 through the inlet 51.
Then, by arranging the pipe member 50 in the socket 40 in this way, the branch side inflow passage 30a (in the pipe member 50) and the upper space X of the socket 40 are communicated.

  Further, the upper end portion of the pipe member 50 is fitted and inserted into the inner convex portion 44 (O-ring 52), so that the upper space X of the socket 40 and the space below the inner convex portion 44 are within the socket 40. It is sealed watertight.

  Furthermore, by arranging the pipe member 50 in the socket 40 in this way, a predetermined space Y1 is formed between the inner surface below the inner convex portion 44 of the socket 40 and the outer surface of the pipe member 50. Yes. The predetermined space Y1 constitutes a part of the branching portion side outflow passage 30b of the branching plug 30.

The outer member 33 of the branch plug main body 31 includes a lock nut 60 and a hub 62.
The lock nut 60 of the outer member 33 is a member made of a metal material, and is a cylindrical member having the vertical direction as the axial direction.
The inner diameter of the lock nut 60 is formed substantially the same as the outer diameter of the outer convex portion 46 of the socket 40 in the inner member 32.
Further, an annular engagement portion 61 that protrudes inward from the inner peripheral surface is formed at the upper end portion of the lock nut 60. The engaging portion 61 of the lock nut 60 is smaller than the outer diameter of the outer cylindrical portion of the socket 40 in the inner member 32 so that it can engage with the outer convex portion 46 of the socket 40 in the inner member 32, and in the socket 40. It is formed substantially the same as the outer diameter directly above the outer convex portion 46.
The lock nut 60 of the outer member 33 configured as described above has the inner member 32 inserted from below, and engages the outer cylinder portion of the socket 40 and the engagement portion 61 of the lock nut 60 in the inner member 32. Let it be placed.

The hub 62 of the outer member 33 is a member made of a metal material, and is a cylindrical member having the vertical direction as the axial direction.
The inner diameter of the lower part of the hub 62 is formed substantially the same as the outer diameter of the upper and lower central part of the socket 40 in the inner member 32 in a state where the O-ring 53 is inserted.

The inner diameter of the upper portion of the hub 62 is formed to be larger than the inner diameter of the lower portion of the hub 62 and the outer diameter of the upper end portion of the socket 40 of the inner member 32.
An annular joint 66 that protrudes inward from the inner peripheral surface is formed at the upper end of the hub 62. Further, a positioning groove is formed on the peripheral surface of the upper portion of the joint portion 66 in the hub 62, and an O-ring 67 is fitted in the positioning groove. Further, a female screw for screwing with the water supply handle mechanism of the opening / closing member 80 is formed on the peripheral surface of the lower portion of the joint portion 66 in the hub 62.

  Through holes that penetrate from the outer peripheral surface to the inner peripheral surface are formed on the left and right sides of the central portion of the hub 62 so as to be symmetrical. That is, the left and right through holes in the hub 62 are formed in the hub 62 so that the positions in the vertical direction are the same. Further, the left and right through holes in the hub 62 are arranged so that the positions of the through holes are the positions of the sockets 40 in the inner member 32 when the inner member 32 is inserted into the hub 62 and the hub 62 is disposed at a predetermined position. It is formed so as to coincide with the positions of the first through hole 41 and the second through hole 42.

A through hole penetrating from the outer peripheral surface to the inner peripheral surface is formed behind the upper and lower central portions of the hub 62 so that the vertical positions of the left and right through holes in the hub 62 are the same. Further, the rear through hole in the hub 62 is positioned so that the vertical direction of the through hole is the first through hole of the socket 40 in the inner member 32 when the inner member 32 is inserted into the hub 62 and the hub 62 is disposed at a predetermined position. The holes 41 and the second through holes 42 are formed so as to coincide with the vertical positions.
A female screw is formed on the inner peripheral surface of the rear through hole in the hub 62.
In the following, the left through hole in the hub 62 is referred to as a third through hole 63, the right through hole is referred to as a fourth through hole 64, and the rear through hole is referred to as a fifth through hole 65.

In the hub 62 of the outer member 33 configured as described above, the inner member 32 in a state where the lock nut 60 is disposed is inserted from below, and the upper and lower central portions of the socket 40 in the inner member 32 are located below the hub 62. It is inserted and placed above the lock nut 60. At this time, the third through hole 63 of the hub 62 and the first through hole 41 of the socket 40 are aligned with the fourth through hole 64 of the hub 62 and the second through hole 42 of the socket 40, respectively. The inner member 32 is inserted into the hub 62 so that the fifth through hole 65 of the hub 62 is positioned rearward.
In this state, the upper end portion of the socket 40 in the inner member 32 is disposed in the upper portion of the hub 62 in the outer member 33.

By arranging the hub 62 of the outer member 33 in this way, the inner wall of the hub 62 of the outer member 33 and the upper end of the socket 40 of the inner member 32 and the inner wall and inner side of the hub 62 of the outer member 33 are arranged. Between the thin part 43 of the socket 40 of the member 32, the predetermined space Y2 which these communicates with each other is formed. The predetermined space Y2 constitutes a part of the branch portion side outflow passage 30b of the branch plug 30.
In addition, the predetermined space Y2 includes notches 45 and 45 of the socket 40 in the inner member 32 in a predetermined space Y1 between the inner surface below the inner convex portion 44 of the socket 40 and the outer surface of the pipe member 50. Communicated through.
The space formed by communicating the predetermined space Y2 and the predetermined space Y1 through the notch portions 45 and 45 of the socket 40 is the space when the branch plug 30 is attached to the faucet 90. It is configured as a branching portion side outflow channel 30 b of the branching plug 30 communicating with the downstream side supply channel 93 in the supply channel 91 of the faucet 90. Here, the branch part side outflow channel 30b of the branch plug 30 refers to the raw water flowing into the branch plug from the branch part side inflow channel 30a or the purified water flowing into the branch plug 30 from the return channel 76. A flow path for causing the faucet 90 to flow out to the downstream supply flow path 93 is shown.
The branch plug body 31 of the branch plug 30 is configured as described above.

Next, the branch member 70 of the branch plug 30 will be described.
The branch member 70 is a member made of a metal material, and is a member for connecting the branch plug 30 to the water purification unit (water purification device 10).
Further, the branch member 70 includes a cylindrical portion 72, a hexagonal portion 73, and a branch flow path 71. The cylindrical portion 72 of the branch member 70 is formed in a cylindrical shape, and the hexagonal portion 73 is formed in a hexagonal column shape. The branch member 70 is configured such that the hexagonal portion 73 is integrally provided on one side surface of the columnar portion 72 so that the axial centers of the columnar portion 72 and the hexagonal portion 73 coincide with each other. Further, the branch flow path 71 of the branch member 70 is formed so as to penetrate the respective axial centers of the cylindrical portion 72 and the hexagonal portion 73. Here, the branch channel 71 of the branch member 70 indicates a channel through which raw water flows out from the branch-part inflow channel 30a to the water purification unit (water purification device 10).

Further, male screws are formed at each corner of the hexagonal portion 73 of the branch member 70.
The outer diameter of the cylindrical portion 72 in the branch member 70 is determined by the first through hole 41 or the second through hole 42 of the socket 40 in the branch plug main body 31 and the third through hole 63 or the fourth through hole 64 of the hub 62. The first through hole 41 or the second through hole 42 of the socket 40 and the inner diameter of the third through hole 63 or the fourth through hole 64 of the hub 62 are configured to be substantially the same so that they can be inserted into and joined to each other. .
Further, the length of the cylindrical portion 72 in the branch member 70 in the axial direction is determined by the first through hole 41 or the second through hole 42 of the socket 40 in the branch plug body 31 and the third through hole 63 or the second through hole 63 of the hub 62. When inserted into the four through holes 64, the end of the cylindrical portion 72 is formed to a length that reaches the upper space X of the socket 40.
A male screw is formed on the outer peripheral surface of the cylindrical portion 72 of the branch member 70. A positioning groove is formed on the outer peripheral surface of the base end of the cylindrical portion 72 of the branch member 70, and an O-ring 74 is fitted in the positioning groove.

The branch members 70, 70 configured in this way include the third through hole 63 of the hub 62 and the first through hole 41 of the socket 40, and the fourth through hole 64 of the hub 62 and the second through hole of the socket 40. This is inserted into the hole 42 in the direction intersecting the insertion direction of the socket 40 from the tip of the cylindrical portion 72 or 72, and the male screw formed on the outer peripheral surface of the cylindrical portion 72 or 72 and the first of the socket 40 The internal thread formed on the inner peripheral surface of the first through hole 41 and the second through hole 42 is screwed together and joined to each other to be fixed to the branch plug main body 31. In this case, a sealing material such as an O-ring 74 or 74 or an adhesive is interposed between the male screw of the branch members 70 and 70 and the female screw of the first through hole 41 and the second through hole 42 of the socket 40. It is sealed in a watertight manner.
Further, the branch member 70 is fixed to the branch plug main body 31 in this manner, whereby the inner member 32 of the branch plug main body 31 is fixed in a state of being inserted into the outer member 33.

  In the state where the branch members 70 and 70 are fixed to the branch plug main body 31 in this way, the branch flow paths 71 and 71 of the branch members 70 and 70 communicate with the upper space X of the socket 40 in the branch plug main body 31. . In other words, in this state, the branch flow path 71 of the branch member 70 communicates with the branch portion side inflow flow path 30 a of the branch plug 30 via the upper space X of the socket 40.

  The length of the cylindrical portion 72 in the branch member 70 in the axial direction is determined by the first through hole 41 or the second through hole 42 of the socket 40 in the branch plug body 31 and the third through hole 63 or the second through hole 63 of the hub 62. When inserted into the four through holes 64, the tip of the cylindrical part 72 reaches the first through hole 41 or the second through hole 42 of the socket 40, and the first through hole 41 or the second through hole of the cylindrical part 72 and the socket 40. It is sufficient that the length is such that the two through holes 42 can be screwed together.

Next, the return member 75 of the branch plug 30 will be described.
The return member 75 is a member made of a metal material, and is a member for connecting to the water purification unit (water purification device 10).
The return member 75 includes a cylindrical portion 77, a hexagonal portion 78, and a return channel 76. The cylindrical portion 77 of the return member 75 is formed in a cylindrical shape, and the hexagonal portion 78 is formed in a hexagonal column shape. The return member 75 is configured such that the hexagonal portion 78 is integrally provided on one side surface of the cylindrical portion 77 so that the axial centers of the cylindrical portion 77 and the hexagonal portion 78 coincide with each other. Further, the return flow path 76 of the return member 75 is formed so as to penetrate the respective axial centers of the cylindrical portion 77 and the hexagonal portion 78. Here, the return flow path 76 of the return member 75 indicates a flow path for allowing purified water purified by the water purification unit (water purification device 10) to flow into the branch plug 30 from the water purification unit (water purification device 10).

  The diameter of the circumscribed circle of the hexagonal portion 78 of the return member 75 when viewed from the axial direction is such that the hexagonal portion 78 can be inserted and joined to the nut member 22 of the first connecting member 20 in the water purifier 10. It is formed substantially the same as the inner diameter of the nut member 22 in the water purifier 10. In addition, male screws are formed at each corner of the hexagonal portion 78 of the return member 75.

The outer diameter of the cylindrical portion 77 in the return flow path 76 is substantially the same as the inner diameter of the fifth through hole 65 of the hub 62 so that it can be inserted and joined to the fifth through hole 65 of the hub 62 in the branch plug body 31. It is configured identically.
Further, the length of the cylindrical portion 77 in the return member 75 in the axial direction is such that when the cylindrical portion 77 is inserted into the fifth through hole 65 of the hub 62 in the branch plug main body 31, the tip of the cylindrical portion 77 is connected to the branch plug 30. Is formed in such a length as to reach the branching portion side outflow passage 30b (space Y2 of the branch plug body 31).
A male screw is formed on the outer peripheral surface of the cylindrical portion 77 of the return member 75.

The return member 75 configured as described above is inserted into the fifth through hole 65 of the socket 40 from the tip of the columnar portion 77 in a direction intersecting the insertion direction of the socket 40, and the columnar portion 77. The male screw formed on the outer peripheral surface of the socket 40 and the female screw formed on the inner peripheral surface of the fifth through-hole of the socket 40 are screwed together and joined to each other, thereby being fixed to the branch plug main body 31. In this case, the male screw of the branch member 70 and the female screw of the first through hole 41 and the second through hole 42 of the socket 40 are sealed in a watertight manner by interposing a sealing material such as an adhesive. Is done.
Further, in the state where the return member 75 is fixed to the branch plug main body 31 as described above, the return flow path 76 of the return member 75 communicates with the branch portion side outflow flow path 30 b of the branch plug 30.

Next, the opening / closing member 80 of the branch plug 30 will be described.
The opening / closing member 80 is a member that is disposed in the branch plug main body 31 and opens and closes communication between the branch portion side inflow channel 30 a and the branch portion side outlet channel 30 b of the branch plug 30.

The opening / closing member 80 is formed with an opening / closing channel 81 that penetrates from the lower surface to the side surface and is configured to be able to open / close the communication.
Further, the opening / closing channel 81 is formed in the opening / closing member 80, thereby forming a lower surface opening 82 on the lower surface and a side surface opening 83 on the side surface thereof. The lower surface opening 82 of the opening / closing member 80 is such that when the opening / closing member 80 is arranged in the branch plug main body 31, the opening / closing channel 81 of the opening / closing member 80 and the branching portion side inflow channel 30 a of the branch plug 30 correspond to the lower surface opening 82. It is formed in the position which communicates via. Further, the side opening 83 of the opening / closing member 80 is such that when the opening / closing member 80 is disposed in the branch plug main body 31, the opening / closing channel 81 of the opening / closing member 80 and the branching portion side outflow channel 30 b of the branch plug 30 correspond to the side surface. It is formed at a position communicating through the opening 83.

  The open / close member 80 is configured to open and close the open / close channel 81 by rotating a boss (not shown) protruding upward from the upper surface of the open / close member 80 in the circumferential direction. Specifically, when the boss is rotated clockwise in plan view, the open / close member 80 is closed, and when the boss is rotated counterclockwise, the open / close channel 81 is closed. The open / close flow path 81 is configured to be in an open state.

The opening / closing member 80 configured as described above is placed in the upper part of the hub 62 by being placed above the socket 40 in the branch plug main body 31. In this state, when the open / close flow path 81 of the open / close member 80 is in the open state, the inflow flow on the branching portion side of the branch plug 30 via the lower surface opening 82 of the open / close member 80 and the upper space X of the branch plug main body 31. It communicates with the path 30a. Further, in this state, the open / close flow path 81 of the open / close member 80, when in the open state, passes through the side opening 83 of the open / close member 80 through the branch portion side outflow flow path 30 b (the branch plug main body 31). The space Y2).
That is, when the opening / closing member 80 is arranged in the branch plug main body 31 in this way, when the opening / closing channel 81 of the opening / closing member 80 is in an open state, the branch portion side inflow channel 30a and the branch portion side of the branch plug 30 are opened. The outflow channel 30 b communicates with the open / close channel 81.
On the other hand, when the opening / closing member 80 is arranged in the branch plug body 31 in this way, when the opening / closing channel 81 of the opening / closing member 80 is in the closed state, the branch portion side inflow channel 30a and the branch portion side of the branch plug 30 are closed. Communication with the outflow channel 30 b is blocked by the open / close channel 81.

Further, a fixing member 84 for fixing the opening / closing member 80 to the branch plug main body 31 is provided above the opening / closing member 80, and an operation member 85 that interlocks with the boss of the opening / closing member 80 so as to protrude upward from the fixing member 84. Is provided.
The outer diameter of the lower end of the fixing member 84 is formed to be substantially the same as the inner diameter of the upper opening of the hub 62 so that the fixing member 84 can be inserted into and joined to the opening of the branch plug body 31 above the hub 62. A male screw is formed on the outer peripheral surface of the lower end of the fixing member 84.
And the fixing member 84 and the branch plug main body 31 are joined by screwing the male screw formed in the fixing member 84 and the female screw formed in the opening above the hub 62 in the branch plug main body 31. . Further, by joining the fixing member 84 and the branch plug main body 31 in this way, the opening / closing member 80 is pressed downward and fixed to the branch plug main body 31. In this case, the male screw of the fixing member 84 and the female screw of the upper opening in the hub 62 are sealed in a watertight manner by interposing a sealing material such as an adhesive. Further, the space between the fixing member 84 and the upper opening in the hub 62 is also sealed watertight by the O-ring 67 of the upper opening in the hub 62.

  A handle 86 is fixedly provided on the operation member 85 interlocking with the boss of the opening / closing member 80 so as to cover the operation member 85 and the fixing member 84. The branch plug 30 rotates the handle 86 attached to the operation member 85 in the circumferential direction, whereby the boss of the opening / closing member 80 rotates via the operation member 85, and the opening / closing channel 81 of the opening / closing member 80. Is configured to open and close.

The water purifier 10 and the branch plug 30 are configured as described above.
And in 1 A of water purifiers, the water purifier 10 (water purifying part) makes the water purifier side outflow flow path 10b directly communicate with the return flow path 76 of the branch plug 30 (branch part). ) (See FIGS. 1 and 9).
Specifically, the water purifier 10 (water purifier) is formed on the female screw formed on the nut member 22 of the first connection member 20 and the hexagonal portion 78 of the return member 75 in the branch plug 30 (branch). By screwing a male screw and joining them, they are integrally connected to the branch plug 30 (branch portion). Thus, in the water purifier 1A, the water purifier 1A is obtained by joining the nut member 22 of the first connection member 20 in the water purifier 10 (water purifier) and the hexagonal portion 78 of the return member 75 in the branch plug 30 (branch). 10 (water purification part) of the water purification part side outflow channel 10b and the return channel 76 of the branch plug 30 (branch part) are in direct communication. And in 1A of water purifiers by joining the nut member 22 of the 1st connection member 20 in the water purifier 10 (water purification part) and the hexagonal part 78 of the return member 75 in the branch plug 30 (branch part) in this way, The water purification unit side outflow channel 10b of the water purifier 10 (water purification unit) communicates with the branch unit side inflow channel 30a of the branch plug 30 (branch unit) via the return channel 76 of the branch plug 30 (branch unit). Will be.

Moreover, in 1 A of water purifiers, the male screw formed in the hexagonal part 27 of the 2nd connection member 25 in the water purifier 10 (water purification part) and the female screw formed in the nut of the end of the hose 3 are screwed together. These are joined together (see FIG. 1).
On the other hand, male screws formed on the hexagonal portion 73 of the left branch member 70 in the side view shown in FIG. 2 of the two branch members 70 and 70 (a plurality of branch members 70) in the branch plug 30 (branch portion) These are joined by screwing a female screw formed on a nut of the branch cock 2 provided at the other end of the hose 3. In other words, in the water purifier 1 </ b> A, the water purifier 10 (water purifier) and the branch plug 30 (branch) are connected to each other via the branch cock 2 and the hose 3.
In this way, in the water purifier 1A, the water purifier of the water purifier 10 (water purifier) is connected to the water purifier 10 (water purifier) and the branch plug 30 (branch) via the branch cock 2 and the hose 3. The side inflow channel 10a and the branch portion side outflow channel 30b of the branch plug 30 (branch portion) communicate with each other via the branch channel 71, the branch cock 2 and the hose 3 of the branch plug 30 (branch portion). It becomes.

Further, of the two branch members 70 and 70 (a plurality of branch members 70) in the branch plug 30 (branch portion), an external connection device is connected to the branch member 70 as in the right branch member 70 in FIG. When not connected, it is possible to close the opening portion of the branching channel 71 on the hexagonal portion 73 side of the branching member 70 using a lid member 79 such as a blind plug. Specifically, the lid member 79 is a bowl-shaped member having an inner diameter substantially the same as the circumscribed line of the hexagonal portion 73 in the branch member 70. The outer peripheral surface of the lid member 60 is formed in a hexagonal nut shape, and the inner peripheral surface of the lid member 60 is formed with a female screw. An annular packing for preventing water leakage is provided inside the lid member 79, and the male screw formed on the hexagonal portion 73 of the branch member 70 and the female screw formed on the lid member 79 are screwed together. . Thus, the opening part by the side of the hexagonal part 73 of the branch flow path 71 is obstruct | occluded, and it can prevent that raw | natural water etc. flow out accidentally from the said opening part.
The lid member 79 can also be used to close the opening of the return member 75 on the hexagonal portion 78 side (see FIGS. 1 and 2).

  As shown in FIG. 9, the water purifier 1 </ b> A configured as described above is such that the branch members 70 and 70 of the branch plug 30 extend in the left-right direction and the water purifier 10 is positioned behind the branch plug 30. In such a manner, the inlet 51 (opening below the pipe member 50) of the branch plug 30 is inserted from the opening of the attachment port 94a of the faucet 90, and the lower end (packing 48) of the pipe member 50 is inserted into the seat portion 96. By making the abutment and screwing the female screw formed on the inner peripheral surface of the lock nut 60 of the branch plug 30 and the male screw formed on the outer peripheral surface of the mounting port 94 a of the faucet 90, It is fixed and attached to the attachment port 94a.

  In the water purifier 1A attached to the faucet 90 as described above, the branch-part-side inflow channel 30a of the branch plug 30 in the water purifier 1A is connected to the upstream-side supply channel 92 of the faucet 90 via the inlet 51 thereof. On the other hand, the branch side outflow channel 30b communicates with the downstream supply channel 93 of the faucet 90 through the outlet 49 thereof.

  Here, the supply flow path 91 of the faucet 90 is a flow path for supplying raw water consisting of hot water or water from a water pipe, a boiler or the like to the discharge port 95 of the faucet 90 to supply water. And an upstream supply flow path 92 that communicates with the boiler and the mounting port 94a, and a downstream supply flow path 93 that is disposed on the downstream side of the upstream supply flow path 92 across the sheet portion 96 and communicates with the discharge port 95. Has been.

In the water purifier 1A attached to the attachment port 94 of the faucet 90 as described above, the handle 86 of the branch plug 30 is rotated to close the open / close flow path 81 and the branch connected to the branch member 70. With the cock 2 in the open state, the raw water can flow from the upstream supply channel 92 of the faucet 90 to the branching portion side inflow channel 30a of the branch plug 30 in the water purifier 1A.
And the raw | natural water which flowed into the branch part side inflow channel 30a of the branch plug 30 flows out from the branch channel 71 of the branch member 70, and passes through the branch cock 2 and the hose 3, and the water purification part side inflow channel of the water purifier 10 Will flow into 10a.
In addition, the raw water that has flowed into the water purification unit side inflow channel 10a of the water purification device 10 is purified by the water purification cartridge 18 and flows out into the water purification unit side outflow channel 10b, and the return flow of the return member 75 in the branch plug 30 It will flow into the path 76.
Further, the purified water that has flowed into the return flow path 76 of the return member 75 in the branch plug 30 flows into the branch portion-side outflow path 30 b and flows out into the downstream supply flow path 93 of the faucet 90. The ink is discharged from the discharge port 95.

As described above, the water purifier 1A is configured so that the water purifier 10 (water purifier) directly connects the water purifier-side outflow channel 10b with the return channel 76 of the branch plug 30 (branch). (Branch part) is integrally connected.
For this reason, in the water purifier 1 </ b> A, when the water purifier 1 </ b> A is attached to the faucet 90, the water purifier 10 (water purifier) and the branch plug 30 (branch part) are integrally disposed in the vicinity of the faucet 90. It becomes. Moreover, the water purification unit side outflow channel 10b of the water purification device 10 (water purification unit) and the return channel 76 of the branch plug 30 (branch unit) require a hose that is necessary when they are arranged apart from each other. The hose that communicates with each other and communicates the water purification unit side inflow channel 10a of the water purification device 10 (water purification unit) with the branch channel 71 of the branch plug 30 (branch unit) is configured to be as short as possible.
Therefore, according to the water purifier 1A, the reduction of the work space in the kitchen in which the water purifier 1A (the water purifier 10 and the branch plug 30) is arranged, and the water purifier 1A is attached and the periphery of the faucet 90 is provided. A complicated state can be prevented.

  Moreover, since the water purifier 1A is configured by integrally connecting the water purifier 10 (water purifying section) to the branch plug 30 (branching section), the water purifier 1A can be installed only by attaching the water purifier 1A to the faucet 90. The work will end. Therefore, according to 1A of water purifiers, the effort and expense of this installation work can be reduced.

  In the water purifier 1A, the water purifier 10 (water purifier) and the branch plug 30 (branch section) are provided, and the water purifier 10 (or the water purifying cartridge 18 provided in the water purifier 10) is branched without being disposed in the faucet 90. The stopper 30 is configured to be attached to the faucet 90. For this reason, in the water purifier 1A, it is possible to provide the water purifier 10 (water purifier) with a relatively large water purifying cartridge 18 having an increased water purifying capability. Therefore, according to the water purifier 1A, it is possible to maintain a stable water purification capacity over a long period of time and to reduce the number of times the water purification cartridge 18 is replaced.

  The water purifier 1A is attached to the faucet 90 so that the branch members 70 and 70 of the branch plug 30 extend in the left-right direction and the water purifier 10 is positioned behind the branch plug 30. Therefore, according to the water purifier 1A, the work space in the kitchen in which the water purifier 1A (the water purifier 10 and the branch plug 30) is disposed is further prevented, and the water purifier 1A is attached to the periphery of the faucet 90. Can be prevented from becoming complicated.

  In the water purifier 1A, since the water purifier 10 is disposed in the vicinity of the faucet 90, the replacement / inspection time of the water purification cartridge 18 can be easily grasped, and the replacement work can be easily performed. It can be carried out.

  Further, in the water purifier 1A, the branch plug 30 has two (plurality) branch members 70, 70, that is, two (plurality) branch passages 71, 71, and the water purifier 10 ( The water purification unit) is integrally connected to the branch plug 30 (branch unit) so that the water purification unit side inflow channel 10a is directly communicated with one of the plurality of branch channels 71, 71. Is done. As described above, by providing a plurality (two) of the branch flow paths 71 and 71, in the water purifier 1 </ b> A, the other branch member 70 is connected to the other outside while the one branch member 70 is connected to the water purifier 10. A connection device (for example, a dishwasher) can be added to connect the branch flow path 71 of the other branch member 70 to the other external connection device, improving the usability of the water purifier 1A and convenience. Can improve the performance.

Further, in the water purifier 1A, when the handle 86 of the branch plug 30 is rotated to open the open / close channel 81, the branch cock 2 connected to the branch member 70 is closed, thereby branching. The raw water that has flowed into the branch-portion-side inflow passage 30a of the plug 30 is discharged from the branch-portion-side outflow passage 30b without being discharged from the branch passage 71 of the branch member 70 and discharged from the discharge port 95 of the faucet 90. Can be made. That is, in the water purifier 1A, the raw water that has flowed into the branching-part-side inflow channel 30a of the branch plug 30 can be discharged from the discharge port 95 of the faucet 90 in the state of the raw water without flowing into the water purifier 10.
Therefore, according to the water purifier 1A, it is possible to select raw water or purified water according to the usage and discharge it from the discharge port 95 of the faucet 90, and thus, the number of replacements of the water purification cartridge 18 can be reduced.
Furthermore, according to the water purifier 1A, even when the replacement time of the water purification cartridge 18 has passed, the raw water can be discharged from the discharge port 95 of the faucet 90 without going through the water purification cartridge 18. Therefore, the sanitary state of the raw water discharged from the discharge port 95 of the faucet 90 can be maintained.

  Note that the water purifier 1A is particularly limited to be attached to the faucet 90 so that the branch members 70 and 70 of the branch plug 30 extend in the left-right direction and the water purifier 10 is positioned behind the branch plug. It is not a thing.

  Next, 2nd embodiment of the water purifier which concerns on this invention is described using FIGS. 10-15. In addition, since the water purifier 1B which concerns on 2nd embodiment has a part which has the structure similar to 1A of water purifiers which concern on 1st embodiment, description of the water purifier 1B which concerns on this embodiment is the same as 1A of water purifiers The portion of the configuration of will be omitted as appropriate, and the description will focus on portions different from the configuration of the water purifier 1A.

  As shown in FIG. 10, the branch portion in the water purifier 1B is disposed between the mixing faucet body 191 and the cartridge 192 in the mixing faucet 190 and attached to the mixing faucet 190, and mixes raw water made of hot water or water. The water faucet 190 can flow out to the water purifier (water purifier 10) and the purified water purified by the water purifier (water purifier 10) can flow out to the mixing faucet 190.

In general, the mixing faucet 190 in a normal use state is provided with a mixing faucet body 191 fixed to a kitchen sink, and a cartridge 192, a cover nut 193, and a handle lever at the upper part of the mixing faucet body 191. 195 is arranged. In the mixing faucet body 191, a hot water channel tube connected to a boiler or the like, a water channel tube connected to a water pipe, and a mixing channel through which hot water, water, or a hot water mixed solution flows. And a tube.
In the mixing faucet 190 to which the branching plug 130 is attached, the cartridge 192 and the hot water side channel pipe, the water side channel pipe, and the mixing channel pipe of the mixing faucet body 191 are connected via the branching plug 130. The cartridge 192 is used to switch water discharge and stop water to the hot water and water mixed flow channel pipes supplied from the hot water side flow channel pipe and the water side flow channel pipe, and to adjust the amount of hot water and water discharged. Is done.
Switching of water discharge and water stop by the cartridge 192 and adjustment of the water discharge amount of hot water and water are performed by operating the handle lever 195.
The spout for communicating the hot water / water mixture or the like to the outside is provided on the outer peripheral portion of the mixing faucet main body 191 in the middle of the upper and lower portions, communicating with the mixing channel pipe. A female screw is formed on the outer peripheral surface of the upper part of the mixing faucet body 191.

  As shown in FIGS. 11 to 13, the branch plug 130 includes a branch plug body 131, an exterior member 140, a return member 175, and two branch members 170.

  As shown in FIGS. 14 and 15, the branch plug main body 131 is a member made of a metal material, and is formed in a cylindrical shape having the axial direction as the vertical direction. On the outer peripheral surface of the upper and lower middle part of the branch plug main body 131, a circumferential (flange-shaped) protrusion 137 is provided that protrudes radially outward. The branch plug main body 131 is formed with a hot water side flow path 133, a water side flow path 132, a mixing flow path 134, a first horizontal hole 135, and a second horizontal hole 136. Includes a first opening 135a, a second opening 136a, and a second opening 136b.

The hot water channel 133 is connected to the hot water channel tube of the mixing faucet main body 191, and is a channel through which hot water flowing from the hot water channel tube flows and flows out to the cartridge 192. The hot water side channel 133 is formed so as to penetrate in the axial direction of the branch plug main body 131 and to have an opening disposed on the front right side in a plan view shown in FIGS. 13 and 15.
The water-side channel 132 is connected to the water-side channel pipe of the mixing faucet body 191, and is a channel through which water flowing in from the water-side channel pipe flows and flows out to the cartridge 192. The water-side channel 132 is formed so as to penetrate in the axial direction of the branch plug main body 131 and to have an opening disposed on the front left side in a plan view shown in FIGS. 13 and 15. Further, the diameter of the water side channel 132 is formed to be larger than the diameter of the hot water side channel 133.
The hot water side channel 133 and the water side channel 132 are configured as a branching portion side inflow channel of the branch plug 130.

The mixing flow path 134 is a flow path for allowing raw water (hot water, water, hot water mixed solution) or purified water flowing from the cartridge 192 to flow and flowing out to the mixing faucet body 191. The mixing channel 134 penetrates in the axial direction of the branch plug main body 131, and is formed so that the opening is disposed rearward in the plan view shown in FIGS. The mixing channel 134 is configured as a branching portion-side outflow channel of the branch plug 130.
Lower end portions of the hot water side channel 133, the water side channel 132, and the mixing channel 134 (connection portions of the branch plug body 131 with the hot water side channel tube, the water side channel tube, and the mixing channel tube) ) Is provided with an annular packing for preventing water leakage.

The first horizontal hole 135 is a flow path that communicates with the mixing flow path 134 and allows purified water flowing from the water purification section (water device 10) water purification section through the return flow path 176 to flow into the mixing flow path 134. The first lateral hole 135 is formed from the rear outer peripheral surface of the bifurcated plug body 131 to the mixing channel 134 at a substantially right angle to the axial direction of the branch plug body 131. That is, the first horizontal hole 135 is formed so as to communicate with the mixing flow path 134 and to open to the outer peripheral surface behind the branch plug main body 131. Further, the diameter of the first lateral hole 135 in the vicinity of the outer peripheral surface is formed to be larger than the diameter on the mixing channel 134 side. A female screw is formed on the inner peripheral surface of the large diameter portion of the first horizontal hole 135.
A first opening 135 a is formed in the rear outer peripheral surface of the branch plug main body 131 by opening the first horizontal hole 135 in the outer peripheral surface behind the branch plug main body 131.

The second horizontal hole 136 is a flow path that branches from the water side flow path 132 to the water purification unit (water purification device 10) through the branch flow path 171 and communicates with the water side flow path 132. And formed on the branch plug body 131. Further, the second horizontal hole 136 penetrates the outer peripheral surface of the branch plug main body 131 in the left-right direction so as to pass between the hot water side channel 133 and the mixing channel 134 at a substantially right angle to the axial direction. And, it is formed so as to communicate with the rear side of the water-side channel 132. That is, the second horizontal hole 136 is formed so as to communicate with the water-side flow path 132 and to be opened at two positions on the outer peripheral surface of the branch plug main body 131. In addition, each of the diameters in the vicinity of the outer peripheral surface of the second horizontal hole 136 is formed so as to be larger than the diameter on the water side channel 132 side. Female threads are respectively formed on the inner peripheral surface of the large-diameter portion of the second horizontal hole 136.
In addition, the second horizontal hole 136 is formed in the branch plug body 131 so as to open at two locations on the outer peripheral surface of the branch plug body 131, so that the second opening is formed on the left outer peripheral surface of the branch plug body 131. A second opening 136b is formed in the right outer peripheral surface of the portion 136a. Further, the second opening 136 a, the second opening 136 b, and the bifurcated plug main body 131 are formed at positions that are bilaterally symmetrical in the circumferential direction. The first opening 135a, the second opening 136a, and the second opening 136b are formed at substantially the same position in the axial direction of the branch plug main body 131, respectively.

The exterior member 140 is a member made of a metal material, and includes an exterior body 141 and a fixing nut 142.
The exterior main body 141 is formed in a cylindrical shape whose inner diameter is substantially the same as the outer diameter of the branch plug main body 131 so that the branch plug main body 131 can be accommodated and whose axial direction is the vertical direction. In addition, the outer diameter of the upper part of the exterior body 141 is formed to be smaller than the outer diameter of the lower part.
A first through hole 146, a second through hole 147, and a third through hole 148 are formed in the lower portion of the exterior body 141 so as to penetrate from the inner peripheral surface to the outer peripheral surface, respectively. The first through hole 146 is formed behind the exterior body 141. The second through hole 147 is formed on the left side of the exterior body 141. The third through hole 148 is formed on the right side of the exterior body 141. The first through hole 146, the second through hole 147, and the third through hole 148 are formed at substantially the same position in the vertical direction.

  The fixing nut 142 is formed in a cylindrical shape whose outer diameter is substantially the same as the outer diameter of the lower portion of the exterior body 141 and whose axial direction is the vertical direction. Further, the inner diameter of the fixing nut 142 is larger than the inner diameter of the exterior body 141, that is, is formed so that the branch plug body 131 can be accommodated in a state having a predetermined gap with the branch plug body 131. Yes. At the upper end portion of the fixing nut 142, a circumferential protrusion projecting radially inward so as to engage with a protrusion 137 provided on the branch plug body 131 when the branch plug body 131 is disposed therein. 143 is provided. A female screw is formed on the inner peripheral surface of the lower portion of the fixing nut 142.

  By disposing the fixing nut 142 below the exterior body 141, the exterior member 140 is formed in a cylindrical shape as a whole, and the branch plug body 131 is fitted therein.

The return member 175 is a member made of a metal material, and is a member for connecting the branch plug 130 to the water purification unit (water purification device 10).
The return member 175 has a cylindrical portion 177, a hexagonal portion 178, and a branch channel 176. The cylindrical portion 177 of the return member 175 is formed in a cylindrical shape, and the hexagonal portion 178 is formed in a hexagonal column shape. The return member 175 is configured such that a hexagonal portion 178 is integrally provided on one side surface of the cylindrical portion 177 so that the axial centers of the cylindrical portion 177 and the hexagonal portion 178 coincide with each other. In addition, the return flow path 176 of the return member 175 is formed so as to penetrate the respective axial centers of the columnar portion 177 and the hexagonal portion 178.

  Further, the outer diameter of the cylindrical portion 177 in the return member 175 is formed to be substantially the same outer diameter as the diameter (large diameter) in the vicinity of the outer peripheral surface of the first horizontal hole 135 formed in the branch plug main body 131. Yes. A male screw is formed on the outer peripheral surface of the cylindrical portion 177 in the return member 175. The diameter of the return flow path 176 is formed to be substantially the same as the diameter of the water side flow path 132 side (small diameter) in the first horizontal hole 135 formed in the branch plug main body 131. Further, male screws are formed at each corner of the hexagonal portion 178 in the return member 175.

The branch member 170 is a member made of a metal material, and is a member for connecting the branch plug 130 to the water purification unit (water purification device 10).
In addition, the branch member 170 has a cylindrical portion 172, a hexagonal portion 173, and a branch channel 171. The cylindrical portion 172 of the branch member 170 is formed in a cylindrical shape, and the hexagonal portion 173 is formed in a hexagonal column shape. The branching member 170 is configured such that the hexagonal portion 173 is integrally provided on one side surface of the cylindrical portion 172 so that the axial centers of the cylindrical portion 172 and the hexagonal portion 173 coincide with each other. Further, the branch flow path 171 of the branch member 170 is formed so as to penetrate the respective axial centers of the cylindrical portion 172 and the hexagonal portion 173.

In addition, male screws are formed at each corner of the hexagonal portion 173 in the branch member 170.
The outer diameter of the cylindrical portion 172 in the branch member 170 is formed to be substantially the same outer diameter as the diameter (large diameter) in the vicinity of the outer peripheral surface of the second horizontal hole 136 formed in the branch plug main body 131. A male screw is formed on the outer peripheral surface of the cylindrical portion 172 in the branch member 170. The diameter of the first branch flow path 171 is formed to be substantially the same as the diameter of the water side flow path 132 side (small diameter) in the second horizontal hole 136 formed in the branch plug main body 131. In addition, male screws are formed at each corner of the hexagonal portion 173 in the branch member 170.

The branch plug 130 is configured by combining the branch plug body 131, the exterior member 140, the return member 175, and the two branch members 170 configured as described above. Below, the procedure of the said combination is demonstrated concretely.
The fixing nut 142 is covered from above the branch plug main body 131 to fit the branch plug main body 131 and the fixing nut 142 together.
Then, the exterior main body 141 is covered from above the branch plug main body 131 in such a state, and the branch plug main body 131 and the exterior main body 141 are fitted. In this case, the position of the first opening 135a provided in the branch plug body 131 and the position of the first through hole 146 formed in the exterior body 141 are referred to as the position of the second opening 136a provided in the branch plug body 131. The position of the second through-hole 147 formed in the exterior body 141, the position of the second opening 136b provided in the branch plug body 131, and the position of the third through-hole 148 formed in the exterior body 141 Then, the two are fitted in a state where they match each other.
Further, the cylindrical portion 177 that is one end of the return member 175 is inserted into the first through hole 146, and the cylindrical portion 177 of the return member 175 and the first opening 135a are directly joined. The cylindrical portion 177 of the return member 175 and the first opening 135a are joined by screwing a male screw formed in the return member 175 and a female screw formed in the first lateral hole 135 in the branch plug main body 131. By doing. In this case, the male screw of the return member 175 and the female screw of the first lateral hole 135 are sealed in a watertight manner by interposing a sealing material such as an adhesive.
A cylindrical portion 172 that is one end of one branch member 170 is inserted into the second through hole 147, and the cylindrical portion 172 of the branch member 170 and the second opening 136a are directly joined. The cylindrical portion 172 of the branch member 170 and the second opening 136a are joined by screwing a male screw formed in the branch member 170 and a female screw formed in the second lateral hole 136 in the branch plug body 131. By doing. In this case, the male screw of the branch member 170 and the female screw of the second horizontal hole 136 are sealed in a watertight manner by interposing a sealing material such as an adhesive.
The cylindrical portion 172 that is one end of the other branching member 170 is inserted into the third through hole 148, and the cylindrical portion 172 of the branching member 170 and the second opening 136b are directly joined. The cylindrical portion 172 of the branching member 170 and the second opening 136b are joined by a male screw formed in the cylindrical portion 172 of the branching member 170 and a female screw formed in the second horizontal hole 136 of the branch plug main body 131. By screwing together. In this case, the male screw of the branch member 170 and the female screw of the second horizontal hole 136 are sealed in a watertight manner by interposing a sealing material such as an adhesive.
In this way, the branch plug 130 is configured by the branch plug main body 131, the exterior member 140, the return member 175, and the branch members 170 and 170.

And in the water purifier 1B, the water purifier 10 (water purifier) connects the water purifier-side outflow passage 10b directly with the return flow path 176 of the branch plug 130 (branch). ) (See FIGS. 11 and 12).
Specifically, the water purifier 10 (water purifier) is formed on the female screw formed on the nut member 22 of the first connection member 20 and the hexagonal portion 178 of the return member 175 in the branch plug 130 (branch). By screwing a male screw and joining them, they are integrally connected to the branch plug 130 (branch portion). Thus, in the water purifier 1B, the water purifier 1B is obtained by joining the nut member 22 of the first connection member 20 in the water purifier 10 (water purifier) and the hexagonal portion 178 of the return member 175 in the branch plug 130 (branch). 10 (water purification part) of the water purification part side outflow channel 10b and the return channel 176 of the branch plug 130 (branch part) are in direct communication. And by joining the nut member 22 of the 1st connection member 20 in the water purifier 10 (water purification part) and the hexagonal part 178 of the return member 175 in the branch plug 130 (branch part) in this way, in the water purifier 1B, The water purification unit side outflow channel 10b of the water purifier 10 (water purification unit) and the branch unit side inflow channel of the branch plug 130 (branch unit) communicate with each other via the return channel 176 of the branch plug 130 (branch unit). It will be.

Moreover, in the water purifier 1B, the external thread formed in the hexagonal part 27 of the 2nd connection member 25 in the water purifier 10 (purified water part) and the internal thread formed in the nut of the end of the hose 3 are screwed together. These are joined together. On the other hand, of the two branch members 170 and 170 (a plurality of branch members 170) in the branch plug 130 (branch portion), the male screw formed on the hexagonal portion 173 of the left branch member 170 in the side view shown in FIG. And these are joined by screwing together the female screw formed in the nut of the branch cock 2 with which the other end of the hose 3 was equipped. That is, in the water purifier 1B, the water purifier 10 (water purifier) and the branch plug 130 (branch) are connected to each other via the branch cock 2 and the hose 3.
Thus, the water purifier 1B and the branch plug 130 (branch part) are connected via the branch cock 2 and the hose 3 so that the water purifier 1B has the water purifier of the water purifier 10 (water purifier). The side inflow channel 10 a and the branch side outflow channel of the branch plug 130 (branch portion) communicate with each other via the branch channel 171, the branch cock 2, and the hose 3 of the branch plug 130 (branch portion); Become.

  The water purifier 1B configured as described above is configured so that the branch members 170 and 170 of the branch plug 130 extend in the left-right direction and the water purifier 10 is positioned behind the branch plug 130, and The branch plug 130 is attached to the mixing faucet 190 so as to be disposed between the mixing faucet body 191 and the cartridge 192 (see FIG. 10).

Hereinafter, the procedure when the water purifier 1B is attached to the mixing faucet 190 (the branch plug 130 is disposed between the main body 191 and the cartridge 192) will be specifically described.
First, the position of the hot water side channel pipe provided in the mixing faucet body 191 and the hot water side channel 133 formed in the branch tap body 131 in the water purifier 1B is provided in the mixing faucet body 191. The position of the water-side channel pipe and the water-side channel 132 formed in the branch plug main body 131 in the water purifier 1B, and the mixed liquid channel pipe provided in the mixed water tap main body 191 and the purified water The branch plug 130 of the water purifier 1B is placed on the mixed water faucet body 191 so that the positions of the mixing flow passages 134 formed in the branch water main body 131 of the water purifier 1B coincide with each other. As described above, by placing the branch plug 130 of the water purifier 1B on the mixing faucet main body 191, the previous hot water side channel pipe and the hot water side channel 133 (branch portion side inflow channel) are connected to the water. The side channel tube and the water side channel 132 (branch side inflow channel) and the mixed liquid channel tube and the mixing channel 134 (branch side outflow channel) are communicated with each other. It becomes.

Next, the fixing nut 142 of the branch plug 130 of the water purifier 1 </ b> B is rotated with respect to the branch plug main body 131, and the female screw formed on the inner peripheral surface of the lower portion of the fixing nut 142 and the upper part of the mixed water tap main body 191 are arranged. The formed male screw is screwed together. By engaging the female screw and the male screw, the protrusion 137 formed on the branch plug body 131 and the protrusion 143 formed on the fixing nut 142 are engaged, and the branch plug 130 of the water purifier 1B is engaged. Is pressed downward and fixed to the mixing faucet body 191.
Then, the cartridge 192 is placed above the branch plug 130 of the water purifier 1B, and a cover nut 193 to which a handle lever 195 is attached is placed on the cartridge 192, and the cover nut 193 is placed on the upper end of the exterior body 141. By screwing, the branch plug 130 in the water purifier 1B is attached to the mixing faucet body 191, and the water purifier 1B is fixed and attached to the mixing faucet 190.

In the water purifier 1B attached to the mixing faucet 190 as described above, the handle lever 195 of the branch plug 130 is operated to close the cartridge 192, and the branch cock 2 connected to the branch member 170 is opened. The raw water can be flowed from the upstream supply channel 92 of the mixing faucet 190 to the branching portion side inflow channel of the branching plug 130 in the water purifier 1B.
And the raw | natural water which flowed into the branch part side inflow channel of the branch plug 130 flows out from the branch channel 171 of the branch member 170, and the water purifier side inflow channel 10a of the water purifier 10 via the branch cock 2 and the hose 3 is used. Will flow into.
In addition, the raw water that has flowed into the water purification unit side inflow channel 10a of the water purifier 10 is purified by the water purification cartridge 18, flows out into the water purification unit side outflow channel 10b, and returns to the return member 175 in the branch plug 130. It will flow into the path 176.
Furthermore, the purified water that has flowed into the return flow path 176 of the return member 175 in the branch plug 130 flows into the branch portion side outflow flow path, flows into the mixed water faucet body 191, and is discharged from the discharge port. .

As described above, the water purifier 1B is configured so that the water purifier 10 (water purifying unit) directly connects the water purifying unit side outflow channel 10b with the return channel 176 of the branch plug 130 (branching unit). (Branch part) is integrally connected.
Therefore, in the water purifier 1B, when the water purifier 1B is attached to the mixing faucet 190, the water purifying device 10 (water purifying section) and the branch plug 130 (branching section) are integrally disposed in the vicinity of the mixing faucet 190. The Rukoto. Further, the water purification unit side outflow channel 10b of the water purification apparatus 10 (water purification unit) and the return channel 176 of the branch plug 130 (branch unit) require a hose that is necessary when they are arranged apart from each other. Therefore, the hose that communicates the water purification unit 10 (water purification unit) with the water purification unit side inflow channel 10a and the branch channel 171 of the branch plug 130 (branch unit) is configured to be as short as possible.
Therefore, according to the water purifier 1B, the reduction of the work space in the kitchen in which the water purifier 1B (the water purifier 10 and the branch plug 130) is arranged, and the water purifier 1B is attached to the periphery of the mixed faucet 190. Can be prevented from becoming complicated.

  Moreover, since the water purifier 1B is configured by integrally connecting the water purifier 10 (water purifying section) to the branch plug 130 (branching section), the water purifier 1B is simply attached to the mixing faucet 190. Installation work will be completed. Therefore, according to the water purifier 1B, the labor and cost of the installation work can be reduced.

  In the water purifier 1B, the water purifier 10 (water purifier) and the branch plug 130 (branch section) are provided, and the water purifier 10 (or the water purifying cartridge 18 provided therein) is not disposed in the mixing faucet 190. The branch plug 130 is configured to be attached to the mixing tap 190. For this reason, in the water purifier 1B, it becomes possible to provide the water purification apparatus 10 (water purification unit) with a relatively large water purification cartridge 18 having an increased water purification capacity. Therefore, according to the water purifier 1B, it is possible to maintain a stable water purification capacity over a long period of time and reduce the number of replacements of the water purification cartridge 18.

  The water purifier 1B is attached to the mixing faucet 190 so that the branch members 170 and 170 of the branch plug 130 extend in the left-right direction and the water purifier 10 is positioned behind the branch plug 130. Therefore, according to the water purifier 1A, the work space in the kitchen where the water purifier 1B (the water purifier 10 and the branch plug 130) is disposed is further prevented, and the water purifier 1B is attached to the mixing faucet 190. It is possible to prevent the surroundings from becoming complicated.

  Moreover, in the water purifier 1B, the branch plug 130 has two (plurality) branching members 170 and 170, that is, two (plurality) branching channels 171 and 171, and the water purifier 10 ( The water purification unit) is integrally connected to the branch plug 130 (branch unit) so as to directly connect the water purification unit side inflow channel 10a to one branch channel 171 of the plurality of branch channels 171 and 171. Is done. As described above, by providing a plurality (two) of the branch channels 171 and 171, in the water purifier 1 </ b> B, one branch member 170 is connected to the water purifier 10 while the other branch member 170 is connected to the other external device. A connection device (for example, a dishwasher) can be added to allow the branch flow path 171 of the other branch member 170 to communicate with the other external connection device, thereby improving the usability of the water purifier 1B. Can improve the performance.

In the water purifier 1B, the handle lever 195 of the branch plug 130 is operated to close the cartridge 192, and the branch cock 2 connected to the branch member 170 is opened to branch the branch plug 130. The raw water that has flowed into the part-side inflow channel can be discharged into the branch-side outflow channel without being discharged from the branching channel 171 of the branching member 170 and discharged from the discharge port of the mixing faucet 190. That is, in the water purifier 1 </ b> B, the raw water that has flowed into the branch side inflow passage of the branch plug 130 can be discharged from the discharge port of the mixing tap 190 in the state of the raw water without flowing into the water purifier 10.
Therefore, according to the water purifier 1B, it is possible to select raw water or purified water according to the usage and discharge it from the discharge port of the mixing faucet 190, and as a result, the number of replacements of the water purification cartridge 18 can be reduced.
Furthermore, according to the water purifier 1B, even when the replacement time of the water purification cartridge 18 has passed, the raw water can be discharged from the discharge port of the mixing faucet 190 without going through the water purification cartridge 18. Therefore, the sanitary condition of the raw water discharged from the discharge port of the mixing faucet 190 can be maintained.

  Further, in the water purifiers 1A and 1B, the water purification device 10 (water purification unit) directly communicates the water purification unit side outflow channel 10b with the return channels 76 and 176 of the branch plugs 30 and 130 (branch unit). Although it is integrally connected to the branch plugs 30 and 131 (branch portions), in the water purifier having the water purification portion and the branch portion as in the present invention, the water purification portion branches the water purification portion side inflow channel. It can also be configured to be integrally connected to the branch portion so as to directly communicate with the branch flow path of the portion.

1A, 1B Water purifier 9 Water faucet 10 Water purifier 10a Water purifier side inflow channel 10b Water purifier side outflow channel 18 Cartridge 30 Branch plug 30a Branch side inflow channel 30b Branch side outflow channel 71 Branch channel 76 Return Channel 130 Branch plug 171 Branch channel 176 Return channel

Claims (2)

A water purifier comprising: a water purifying unit that purifies raw water to be purified water; and a branching unit that is capable of flowing raw water from a faucet to the water purifying unit and capable of flowing purified water purified by the water purifying unit to the faucet. Because
The branching section includes a branching section side inflow channel for allowing raw water to flow into the branching section from the faucet, a branching path for discharging the raw water from the branching section side inflow path to the water purification section, and purified water from the water purification section. A return flow channel for inflow and a branch side outflow channel for flowing raw water from the branch side inflow channel or purified water from the return channel to the faucet, and attached to the faucet ,
The water purification unit purifies the raw water introduced from the water purification unit side inflow channel and the water purification unit side inflow channel through which the raw water flows into the water purification unit from the branch flow channel of the branch unit, and the water purification unit A water purification cartridge provided in a replaceable manner, and a water purification unit side outflow channel for allowing purified water to flow out from the water purification cartridge to the return channel of the branching unit, and the water purification unit side outflow channel The water purifier is integrally connected to the branch portion so as to communicate directly with the return flow path of the branch portion. The branch section has a plurality of the branch flow paths, out of the plurality of branch flow paths from the inflow flow path, the raw water flows out to the water purification section through one branch flow path,
The said water purification part is integrally connected with the said branch part so that the said water purification part side inflow channel may be directly connected with one branch channel among these several branch channels. The water purifier described.

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