JP2013044216A - Faucet with water purification function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a faucet with a water purification function capable of securing a discharge force even when a discharge flow rate is decreased due to a pressure loss caused by a water purification cartridge, in selection from clean water shower discharges.SOLUTION: A faucet with a water purification function, which is internally fitted with a water purification cartridge, can be operated for selection between a raw water shower discharge and a clean water shower discharge. The faucet with the water purification function includes a plurality of first and second shower discharge ports 46A and 46B. The faucet with the water purification function is provided with a channel switching mechanism 26 for performing switching so that a water shower can be discharged from the smaller number of second shower discharge ports 46B when the clean water shower discharge is selected than when the raw water shower discharge is selected.

Description

  The present invention relates to a water faucet with a water purifying function, in which a water purifying cartridge is incorporated so that raw water shower discharge and purified water shower discharge can be selected.

Conventionally, as this kind of faucet with a water purification function, the structure as disclosed, for example in patent document 1 is proposed.
In this conventional configuration, a water purification cartridge and a flow path switching mechanism are arranged in the faucet body. And, by switching the raw water straight discharge from the straight spout, raw water shower discharge from the shower spout, purified water straight discharge from the straight spout, and purified water shower discharge from the shower spout by operation of the flow path switching mechanism To be done.

JP 2006-42993 A

  As described above, in this conventional faucet with a water purification function, raw water shower discharge and purified water shower discharge are performed from the same shower spout. For this reason, at the time of discharging a clean water shower, the pressure loss due to the water purification cartridge becomes large, so that a sufficient shower flow rate cannot be obtained, and the shower becomes dull and sometimes drops without spreading into a shower. There was a problem that a suitable shower function could not be obtained.

  The present invention has been made paying attention to such problems existing in the prior art. The purpose is to provide a water faucet with a water purifying function that can ensure the momentum of the discharge even when the discharge flow rate is reduced due to the pressure loss caused by the water purification cartridge when water purification discharge is selected.

  In order to achieve the above object, the present invention is a faucet equipped with a water purification cartridge and capable of selecting either raw water shower discharge or purified water shower discharge, and a first shower spout having a large total opening area. And a second shower spout with a small total opening area, and when the raw water shower discharge is selected, water is discharged from the first shower spout and when purified water shower discharge is selected, A switching means for switching the flow path so that water is discharged from the two shower spouts is provided.

  Therefore, in the water faucet with the water purification function of the present invention, when water purification shower discharge is selected, switching is performed so that water is discharged from the second shower water outlet having a smaller total opening area than when raw water shower discharge is selected. The flow path is switched by the means. For this reason, at the time of selection of clean water shower discharge, even if the discharge flow rate decreases due to pressure loss by the water purification cartridge, there is almost no possibility that the discharge momentum will decrease. Therefore, comfortable clean water shower discharge can be obtained.

The said structure WHEREIN: It is preferable that the said switching means forms the channel | path for raw water shower discharge, and the channel | path for clean water shower discharge on the same periphery.
In the above configuration, a flow path forming member that forms a flow path between the first and second shower spouts and a water discharge plate is provided, and the flow paths correspond to the first and second shower spouts. It is preferable that the partitioning means switches the supply of raw water or purified water to each section.

  As described above, according to the present invention, the discharge momentum can be ensured even when the discharge flow rate is reduced due to the pressure loss caused by the water purification cartridge during the discharge of the purified water shower.

The front view which shows the water faucet with a water purification function of 1st Embodiment. Sectional drawing along the axial direction of the water faucet with a water purification function of FIG. Sectional drawing which shows the water faucet with a water purification function of FIG. 2 in an exploded state. The perspective view which decomposes | disassembles and shows the head part of the faucet with a water purifying function. The front view which shows the flow-path switching mechanism in the head part. Sectional drawing in the 6-6 line of FIG. Sectional drawing which shows the housing of a flow-path switching mechanism. (A) is the side view seen from the arrow A direction of FIG. 7, (b) is the side view which takes out and shows a partition part from the structure of (a). The front view which shows the valve body in a flow-path switching mechanism. (A) is a side view seen from the direction of arrow B in FIG. 9, (b) is a side view seen from the direction of arrow C in FIG. Sectional drawing in the 11-11 line | wire of Fig.10 (a). The side view which shows the valve seat packing in a flow-path switching mechanism. (A)-(d) is a side view which shows the correspondence of a partition and a valve body in the switching state of a different flow path. The disassembled perspective view which shows the principal part of the faucet of 2nd Embodiment. Sectional drawing which shows the structure in the head of FIG. The disassembled perspective view which shows the principal part of the water tap of 3rd Embodiment. FIG. 17 is a cross-sectional view showing the configuration inside the head of FIG. Sectional drawing which similarly shows the structure in a water discharging plate.

Embodiments of a water faucet with a water purification function embodying the present invention will be described below with reference to the drawings.
(First embodiment)
First, a first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, a faucet body 21 of a faucet with a water purifying function includes a cylindrical gripping portion 22 and a head portion 23 detachably connected to the tip of the gripping portion 22. Yes. A water purification cartridge 24 for purifying water quality is detachably mounted in the grip portion 22. At the lower end of the head part 23, a water discharge cylinder part 25 is projected. In the head portion 23, a flow path switching mechanism 26 is disposed as a switching means for switching the water discharge state from the water discharge tube portion 25 to any one of four types of raw water straight, raw water shower, purified water straight, and purified water shower. Yes. The flow path switching mechanism 26 includes a housing 34, a valve body 35, a water discharge port member 41, a distribution member 43, a water discharge plate 44, a seal member 50, an operation knob 60 and the like which will be described later.

  As shown in FIGS. 2 and 3, the water purification cartridge 24 is disposed in the grip portion 22 in a state of being accommodated in a cylindrical case 30. A cylindrical connection port 30 a for connecting to a hose or the like of a mixing faucet (not shown) is formed at one end portion of the case 30 so as to protrude from the end surface of the grip portion 22. At the other end of the case 30, an opening 30 b for connecting to the post-housing 34 of the flow path switching mechanism 26 is formed. In the water purification cartridge 24, an activated carbon part 24a and a hollow fiber membrane part 24b are arranged in series. A connection cap 31 is fitted to the end of the water purification cartridge 24 on the side corresponding to the opening 30 b of the case 30. The connection cap 31 is provided with a cylindrical connection portion 31 a for connecting to the post valve body 35 of the flow path switching mechanism 26.

  And by the selection operation of the flow path switching mechanism 26, the raw water flowing into the case 30 from the connection port 30a of the case 30 of the water purification cartridge 24 is switched to the flow path passing through the outer peripheral part or the inside of the water purification cartridge 24 and guided. . The raw water switched to the flow path passing through the outer peripheral portion of the water purification cartridge 24 is guided into the housing 34 of the flow path switching mechanism 26 from the outer peripheral portion of the water purification cartridge 24 in the state of the raw water. On the other hand, the raw water switched to the flow path passing through the inside of the water purification cartridge 24 is purified by the water purification cartridge 24 to become purified water, and enters the valve body 35 of the flow path switching mechanism 26 from the connection portion 31a of the connection cap 31. Led.

  As shown in FIGS. 2 and 3, the flow path switching mechanism 26 includes the housing 34 and a valve body 35 disposed in the housing 34. As shown in FIGS. 3 to 6, the housing 34 is provided with a cylindrical portion 34 a that is connected to the inner peripheral surface of the opening 30 b of the case 30 of the water purification cartridge 24 at the left end in the drawing. As shown in FIGS. 3 and 4, a partition wall 36 is formed at an intermediate portion in the cylindrical portion 34 a. As shown in FIGS. 2, 4, and 6, the partition wall 36 is formed with an annular wall 38 so as to be positioned in the space 37 </ b> B on the downstream side. A space 40A located on the center side of the space 37B is partitioned by the annular wall 38. Further, a partition wall 39 is formed between the annular wall 38 and the cylindrical portion 34a, and the annular wall 38 is formed on the outer peripheral side of the space portion 40A on the center side by the annular wall 38, the cylindrical portion 34a, and the partition wall 39. A first shower channel 40B and a second shower channel 40C located on the same circumference as the first shower channel 40B are partitioned.

  As shown in FIGS. 2 and 3, at the lower end of the distal end (right end in the figure) of the tubular portion 34 a of the housing 34, the water discharge port member 41 disposed in the water discharge tube portion 25 of the head portion 23 of the faucet body 21. Is protruding. As shown in FIG. 6, in the spout member 41, a straight communication path 42 </ b> A on the center side, and a first shower channel communicating with the first shower flow path 40 </ b> B on the right side of the straight communication path 42 </ b> A in the drawing. A communication path 42B and a second shower communication path 42C communicating with the second shower flow path 40C are defined on the left side of the straight communication path 42A in the figure. A distribution member 43 (see FIG. 4) as a flow path forming member and a water discharge plate 44 are fixed to the lower end portion of the water discharge port member 41.

  As shown in FIGS. 2 and 6, a straight water discharge port 45 </ b> A that communicates with the straight communication path 42 </ b> A is formed at the center of the water discharge plate 44. A first shower water discharge channel 45B extending in an annular shape and a second shower water discharge channel 45C extending in an annular shape between the first shower water discharge channel 45B and the straight water discharge port 45A are provided on the outer peripheral side of the straight water discharge port 45A. A partition wall 33 integral with the water discharge plate 44 is partitioned. A ring-shaped seal member 50 is interposed between the upper end of the partition wall 33 and the lower surface of the distribution member 43.

  The bottom wall of the water discharge plate 44 has a first shower water discharge port 46A including a plurality of water discharge holes communicating with the first shower water discharge channel 45B and a second shower including a plurality of water discharge holes communicating with the second shower water discharge channel 45C. The water discharge ports 46B are arranged in a concentric annular region. In this case, the second shower water outlet 46B is constituted by a circular area on the inner peripheral side in the area of the first shower water outlet 46A. Accordingly, the number of first shower water outlets 46A is formed to be larger than the number of second shower water outlets 46B, and the total opening area of the first shower water outlet 46A is the total opening area of the second shower water outlet 46B. It is formed to be wider.

  As shown in FIGS. 4 and 6, a pair of protrusions 47 </ b> A and 47 </ b> B are integrally formed on the upper surface of the distribution member 43 so as to be fitted to the lower ends of the first shower communication path 42 </ b> B and the second shower communication path 42 </ b> C. Has been. The protrusion 47A that fits into the first shower communication path 42B communicates the first shower communication path 42B with both the first shower water discharge path 45B and the second shower water discharge path 45C in the water discharge plate 44, respectively. Two communication holes 48A are formed. One protrusion hole 48B for communicating the second shower communication path 42C only with the second shower water discharge path 45C in the water discharge plate 44 is formed in the protrusion 47B fitted to the second shower communication path 42C. Yes.

  As shown in FIGS. 3 and 6 to 8, a shaft support hole 51 is formed through the central portion of the partition wall 36 in the housing 34. The partition wall 36 is formed with a straight outflow hole 52A and a shower outflow hole 52B, and a first closing portion 53A and a second closing portion 53B are formed on the upstream surface of the partition wall 36, and these are concentric. They are arranged at equiangular intervals on the circumference. 53 A of 1st closing parts and the 2nd closing part 53B are comprised from the recessed part formed in the surface of the upstream of the partition 36 so that a long-hole arc shape might be made along the circumferential direction.

  The straight outflow hole 52A is formed in the lower part of the partition wall 36 so that the upstream space 37A in the tubular portion 34a of the housing 34 and the straight communication passage 42A in the water discharge port member 41 communicate with each other. Further, the straight outflow holes 52A are formed in a long hole arc shape along the circumferential direction of the partition wall 36. The shower outflow hole 52B includes two through holes 52a and 52b arranged adjacent to each other along the circumferential direction. One through hole 52a of the shower outflow hole 52B is formed at a position where the first shower flow path 40B and the first shower communication path 42B in the water discharge port member 41 communicate with each other. The other through hole 52b of the shower outflow hole 52B is formed at a position where the second shower channel 40C and the second shower communication path 42C in the water discharge port member 41 communicate with each other.

  As shown in FIGS. 7 and 12, a disc-shaped valve seat packing 54 made of an elastic material such as rubber is attached to the upstream surface of the partition wall 36. The valve seat packing 54 includes annular seal portions 54a and 54b arranged at the opening peripheral edge of the straight outflow hole 52A and the shower outflow hole 52B of the partition wall 36, and the first closing portion 53A and the second closing portion of the partition wall 36. Convex seal portions 54c and 54d arranged at 53B are formed.

  As shown in FIGS. 2 and 3, the downstream switching end of the tubular portion 34a of the housing 34 in the flow path switching mechanism 26 is closed at the end of the downstream space 37B in the tubular portion 34a. A closing plate 55 is attached. A shaft support hole 56 corresponding to the shaft support hole 51 of the partition wall 36 is formed at the center of the closing plate 55.

  As shown in FIGS. 3, 9 and 11, the valve body 35 of the flow path switching mechanism 26 includes a disc-shaped valve plate 57 and an operation shaft protruding downstream from the center of the valve plate 57. 58 and a connecting tube 59 protruding upstream from the center of the valve plate 57 are formed. The valve body 35 is rotatably supported by the partition wall 36 and the closing plate 55 by inserting the operation shaft 58 of the valve body 35 into the shaft support holes 51 and 56 from the upstream side of the partition wall 36. Moreover, in the support state of this valve body 35, the connection part 31a of the connection cap 31 attached to the edge part of the said water purification cartridge 24 with respect to the said connection cylinder 59 is connected so that attachment or detachment is possible.

As shown in FIGS. 2 and 3, an operation knob 60 is provided outside the head portion 23 of the faucet body 21, and the operation knob 60 is connected to the end of the operation shaft 58 of the valve body 35. ing.
A spring 61 for pressing and urging the valve plate 57 toward the partition wall 36 is interposed between the valve plate 57 of the valve body 35 and the connection cap 31 via a spring receiver 62. As shown in FIGS. 2, 8 to 10 (a) and 10 (b), four positioning recesses 63 are formed at equal angular intervals on the same circumference on the outer peripheral edge of the upstream surface of the partition wall 36. Has been. On the outer peripheral edge of the downstream surface of the valve plate 57, four positioning protrusions 64 that can be engaged with and disengaged from the positioning recess 63 are formed at equal angular intervals on the same circumference.

  Then, when the valve element 35 is rotated by the operation knob 60, the positioning convex part 64 is engaged with and disengaged from the positioning concave part 63 under the biasing force of the spring 61, and the valve element 35 is clicked in FIG. It is positioned and held at four switching positions shown in (a) to (d).

  As shown in FIGS. 4, 10 (a), 10 (b), and 11, the valve plate 57 of the valve body 35 is formed with a raw water valve port 65 </ b> A and a water purification valve port 65 </ b> B on the same circumference. Yes. The raw water valve port 65 </ b> A is formed in a long hole arc shape along the circumferential direction of the valve plate 57. When the valve body 35 is switched to the switching position shown in FIG. 13A, the raw water valve port 65A matches the straight outflow hole 52A on the partition wall 36, and the straight outflow hole 52A is opened. The When the valve body 35 is switched to the switching position shown in FIG. 13B, the raw water valve port 65A matches the both through holes 52a and 52b of the shower outflow hole 52B on the partition wall 36, so The holes 52a and 52b are opened.

  As shown in FIGS. 10A, 10B, and 11, the water purifying valve port 65B is formed so as to extend in an inclined manner from the inside of the connection tube 59 of the valve body 35 toward the downstream side surface of the valve plate 57. ing. Further, the water purifying valve port 65 </ b> B is formed so that the opening end surface has an elliptical shape that is long in the radial direction of the valve plate 57. When the valve body 35 is switched to the switching position shown in FIG. 13C, the water purifying valve port 65B matches a part of the straight outflow hole 52A on the partition wall 36, and the straight outflow hole 52A. Is released. When the valve body 35 is switched to the switching position shown in FIG. 13 (d), the water purifying valve port 65B matches one through hole 52b of the shower outflow hole 52B on the partition wall 36, and the through hole. Only 52b is opened.

Next, the operation of the water faucet with the water purification function configured as described above will be described mainly with reference to FIG.
(Raw water straight discharge)
When the valve plate 57 of the valve element 35 is switched to the switching position shown in FIG. 13A by rotating the operation knob 60 of the flow path switching mechanism 26, the raw water valve port 65A on the valve plate 57 is on the partition wall 36. Matching the straight outflow hole 52A, the straight outflow hole 52A is opened. At this time, the water purifying valve port 65B on the valve plate 57 is closed by the first closing portion 53A on the partition wall 36, and both the through holes 52a and 52b of the shower outlet hole 52B on the partition wall 36 are closed by the valve plate 57. It is closed.

  Thereby, the raw water flowing into the case 30 from the connection port 30a of the case 30 of the water purification cartridge 24 passes through the outer peripheral portion of the water purification cartridge 24 and remains as the raw water, and the upstream side of the housing 34 of the flow path switching mechanism 26. It is introduced into the space 37A. Then, the raw water is led to the straight communication passage 42A in the water discharge port member 41 through the raw water valve port 65A of the valve plate 57 and the straight outflow hole 52A of the partition wall 36, and from the straight water discharge port 45A of the water discharge plate 44. Straight discharge.

(Raw water shower discharge)
When the valve plate 57 of the valve body 35 is switched to the switching position shown in FIG. 13B, the raw water valve port 65A on the valve plate 57 is aligned with the through holes 52a and 52b of the shower outflow hole 52B on the partition wall 36. Then, both through holes 52a and 52b are opened. At this time, the water purifying valve port 65 </ b> B on the valve plate 57 is closed by the second closing portion 53 </ b> B on the partition wall 36, and the straight outflow hole 52 </ b> A on the partition wall 36 is closed by the valve plate 57.

  As a result, the raw water introduced into the upstream space 37A of the housing 34 through the outer periphery of the water purification cartridge 24 passes through the through holes 52a of the raw water valve port 65A of the valve plate 57 and the shower outlet hole 52B of the partition wall 36. , 52b to the first and second shower communication paths 42B, 42C in the water discharge port member 41. Then, the raw water passes through the communication holes 48A and 48B of the distribution member 43, and the shower water discharge port 46A of the first shower water discharge passage 45B provided in the outer peripheral side region of the water discharge plate 44 and the second provided in the inner peripheral side region. Shower water is discharged at a large discharge flow rate from both shower water outlets 46B of the shower water discharge channel 45C.

(Purified water straight discharge)
When the valve plate 57 of the valve body 35 is switched to the switching position shown in FIG. 13C, the water purifying valve port 65B on the valve plate 57 is a part (almost half) of the straight outflow hole 52A on the partition wall 36. And the straight outflow hole 52A is opened. At this time, the raw water valve port 65A on the valve plate 57 is closed by the first closing portion 53A on the partition wall 36, and both the through holes 52a and 52b of the shower outflow hole 52B on the partition wall 36 are closed by the valve plate 57. Has been.

  As a result, the raw water flowing into the case 30 of the water purification cartridge 24 from the connection port 30a is purified through the inside of the water purification cartridge 24 to become purified water, and this water purification from the connection portion 31a of the connection cap 31 to the flow path switching mechanism 26. The valve body 35 is guided into the connecting cylinder 59. Then, the purified water is guided to the straight communication passage 42A in the water discharge port member 41 through the water purification valve port 65B of the valve plate 57 and the straight outflow hole 52A of the partition wall 36, and from the straight water discharge port 45A of the water discharge plate 44. Discharged.

(Clean water shower discharge)
When the valve plate 57 of the valve body 35 is switched to the switching position shown in FIG. 13 (d), the water purifying valve port 65 B on the valve plate 57 is aligned with one through hole 52 b of the shower outflow hole 52 B on the partition wall 36. Then, only the through hole 52b is opened. At this time, the raw water valve port 65A on the valve plate 57 is closed by the second closing portion 53B on the partition wall 36, and the other outflow hole 52a of the straight outflow hole 52A and the shower outflow hole 52B on the partition wall 36 is It is closed by a valve plate 57.

  Thus, the purified water introduced into the connection tube 59 of the valve body 35 passes through one through hole 52b of the water purification valve port 65B of the valve plate 57 and the shower outlet hole 52B of the partition wall 36, and then the water discharge port member 41. The second shower communication passage 42C is guided to the inside. Then, the purified water passes through the communication hole 48 </ b> B of the distribution member 43 and is discharged from a shower water discharge port 46 </ b> B of the second shower water discharge channel 45 </ b> C provided in the inner peripheral side region of the water discharge plate 44. In the case of this clean water shower discharge, the opening area of the shower water discharge is reduced compared with the case of the raw water shower discharge. That is, the first and second shower spouts 46A and 46B are used in the raw water shower discharge, but only the second shower spout 46B is used in the clean water shower discharge. For this reason, in the clean water shower discharge, even if the discharge flow rate decreases due to the pressure loss in the water purification cartridge 24, the momentum of the shower water discharge is hardly reduced.

Therefore, according to this embodiment, the following effects can be obtained.
(1) In this embodiment, a plurality of shower water outlets 46A and 46B are provided in a faucet with a water purification function in which a water purification cartridge 24 is housed so that raw water shower discharge and purified water shower discharge can be selected. And when clean water shower discharge is selected, a flow path is switched so that shower discharge may be carried out from the shower spout 46B of an opening total area narrower than the case where raw | natural water shower discharge is selected. For this reason, even when the discharge flow rate is reduced due to the pressure loss caused by the water purification cartridge 24 when selecting the water purification shower discharge, there is almost no possibility that the momentum of the shower water discharge will decrease. Therefore, even if it is a clean water shower discharge, the natural shower feeling with the momentum of discharge can be obtained and it can be used comfortably.

  (2) In this embodiment, the second shower spout 46 </ b> B is provided in the inner peripheral side region of the spout plate 44 of the spout member 41, and the first shower spout is provided in the inner peripheral side and the outer peripheral side region of the spout plate 44. 46A is provided. And when clean water shower discharge is selected, shower discharge is performed only from the 2nd shower spout 46B. On the other hand, when the raw water shower discharge is selected, the shower discharge is performed from both shower water outlets 46B and 46A. That is, when the raw water shower discharge is selected, the shower discharge is performed also using the second shower water discharge port 46B on the inner periphery side for the clean water shower discharge.

For this reason, both shower water outlets 46B and 46A can be shared in the raw water shower, and the entire faucet can be made compact.
(3) In this embodiment, when selecting raw water shower discharge, a large discharge flow rate can be secured. In addition, when either clean water shower discharge or raw water shower discharge is selected, shower water discharge is performed from the second shower water discharge port 46B in the inner peripheral side region of the water discharge plate 44 of the water discharge port member 41. Can do.

  (4) In this embodiment, the partition wall 39 is formed between the concentric annular wall 38 and the cylindrical part 34a. And by this annular wall 38, the cylindrical part 34a, and the partition wall 39, the 1st shower flow path 40B of the outer peripheral side and the 2nd shower use located on the same periphery as the 1st shower flow path 40B The flow path 40C is partitioned. Therefore, since the first and second shower channels 40B and 40C are located on the same circumference, the entire housing 34 can be configured compactly.

(Second Embodiment)
Next, a second embodiment embodying the present invention will be described based on FIGS. 14 and 15 with a focus on differences from the first embodiment.

  In this 2nd Embodiment, the 1st shower spout 46A for raw water showers is provided in the perimeter of the spout plate 44, and the 2nd shower spout 46B for a clean water shower is the figure of the spout plate 44 on the same periphery. 14 is provided only in the left half. For this reason, half of the first shower water outlet 46A is shared with the second shower water outlet 46B. That is, the second shower water outlet 46B is configured by a half area within the area of the first shower water outlet 46A. Accordingly, the number of first shower water outlets 46A is formed to be larger than the number of second shower water outlets 46B, and the total opening area of the first shower water outlet 46A is the total opening area of the second shower water outlet 46B. It is formed to be wider.

  The space portion 40A of the housing 34, the first and second shower channels 40B and 40C, the through holes 52a and 52b, the straight outlet holes 52A, the first and second shower communication paths 42B and 42C, and the like shown in FIG. Further, the valve body 35 and the like not shown in FIGS. 14 and 15 have the same configuration as that of the first embodiment.

  On the other hand, in the second embodiment, the following configuration is different from the first embodiment. That is, each of the projections 47A and 47B of the distribution member 43 is formed with one communication hole 48A and 48B. The partition wall 33 between the distribution member 43 and the water discharge plate 44 includes an outer peripheral portion 33a that is integral with the outer peripheral wall portion 44a of the water discharge plate 44, and an inner peripheral portion 33b that is integral with the inner peripheral wall portion 44b. And a connecting portion 33c located on a diameter line extending in the front-rear direction between the outer peripheral portion 33a and the inner peripheral portion 33b. Corresponding to the shape of the partition wall 33, the seal member 50 is integrally formed by an outer peripheral portion 50a, an inner peripheral portion 50b, and a connecting portion 50c. The flow path between the water discharge plate 44 and the distribution member 43 is divided into left and right by the partition wall 33 and the seal member 50 via the partition wall 33 and the connecting portions 33 c and 50 c of the seal member 50.

  Therefore, in the case of a raw water shower, the raw water passes through the first and second shower flow paths 40B and 40C, the first and second shower communication paths 42B and 42C from the through holes 52a and 52b, and passes through the communication holes 48A and 48B. The shower is discharged from the left and right first and second shower water outlets 46A and 46B. Further, in the case of a purified water shower, the purified water is discharged from the through hole 52b through the second shower channel 40C and the second shower communication channel 42C, through the communication hole 48B, and discharged from the left second shower water outlet 46B. The Therefore, in the case of shower discharge of purified water, the amount of water discharged is smaller than in the case of shower discharge of raw water.

  Therefore, in the second embodiment, the same effects as (1), (2), and (4) in the first embodiment can be obtained. In the second embodiment, the arrangement of the water purifying valve port 65B, the through holes 52a and 52b, the first and second shower channels 40B and 40C, etc. of the valve body 35 is reversed left and right with respect to FIG. In this case, the clean water shower is configured to be discharged from the region on the right half of FIG.

(Third embodiment)
Next, a third embodiment embodying the present invention will be described based on FIGS. 16 to 18 with a focus on differences from the first embodiment.

  In this embodiment, the first shower spout 46A for the raw water shower is provided on the entire periphery of the spout plate 44, and the second shower spout 46B for the clean water shower is on the same circumference on the rear half of FIG. Is provided. Therefore, also in the third embodiment, half of the first shower water outlet 46A is shared with the second shower water outlet 46B. That is, also in this embodiment, the second shower spout 46B is constituted by a half region in the region of the first shower spout 46A, and the total opening area of the first shower spout 46A is the second shower spout. It is formed to be wider than the total opening area of the water port 46B.

  The space portion 40A of the housing 34, the first and second shower channels 40B and 40C, the through holes 52a and 52b, the straight outlet holes 52A, the first and second shower communication paths 42B and 42C, and the like shown in FIG. Or the valve body 35 etc. which are not shown in figure are the structures similar to the said 2nd Embodiment.

  On the other hand, in the third embodiment, the following configuration is different from that of the first embodiment. That is, communication holes 48A and 48B are formed in the front and rear projections 47A of the distribution member 43 at two positions in the front and rear, and the projection 47B on the left side in the drawing and one rear position. The partition wall 33 includes an outer peripheral portion 33a integral with the outer peripheral wall portion 44a of the water discharge plate 44, an inner peripheral portion 33b integral with the inner peripheral wall portion 44b, an outer peripheral portion 33a and an inner peripheral portion 33b. And a connecting portion 33c located on a diameter line extending in the left-right direction. Corresponding to the shape of the partition wall 33, the seal member 50 is integrally formed by an outer peripheral portion 50a, an inner peripheral portion 50b, and a connecting portion 50c. The partition wall 33 and the seal member 50 divide the flow path between the water discharge plate 44 and the distribution member 43 back and forth via the connecting portions 33c and 50c. Further, the pair of communication holes 48A of the right protrusion 47A are arranged so as to sandwich the connecting portions 33c, 50c at the front and rear positions of the partition wall 33 and the connecting portions 33c, 50c of the seal member 50. Further, the communication hole 48B of the left protrusion 47B is disposed at a rear position of the connecting portions 33c and 50c.

  Therefore, in the case of a raw water shower, the raw water passes through the first and second shower flow paths 40B and 40C, the first and second shower communication paths 42B and 42C from the through holes 52a and 52b, and passes through the communication holes 48A and 48B. The shower is discharged from the first and second shower water outlets 46A and 46B. In the case of a clean water shower, the clean water passes through the second shower channel 40C and the second shower communication channel 42C from the through hole 52b, passes through the communication hole 48B, and is discharged from the rear second shower water outlet 46B. Is done.

  Therefore, also in the third embodiment, the same effects as (1), (2), and (4) in the first embodiment can be obtained. In addition, in this 3rd Embodiment, if the position of the communicating hole 48B of the protrusion 47B is reversed from front to back with respect to FIG. 17, the clean water shower is discharged from the region of the front half portion of FIG.

(Example of change)
In addition, this embodiment can also be changed and embodied as follows.
In the embodiment, the configuration of the water purification cartridge 24 is arbitrarily changed. For example, use a water purification cartridge with a filter medium made only of activated carbon without having a hollow fiber membrane.

-In the said embodiment, although the water discharge part of the clean water shower was provided in the inner peripheral side, providing in the outer peripheral side.
In each of the above embodiments, the first and second shower water outlets 46A and 46B are configured by holes, but may be configured by a slit or a combination of a hole and a slit. Moreover, although the difference of the opening total area of the 1st, 2nd shower spout 46A, 46B was made different by the difference in the number of holes, you may comprise by the difference in the diameter of a hole.

(Other technical ideas)
The technical idea which is grasped from the respective embodiments but is not described in the claims is as follows.

  (A) A plurality of first shower spouts are arranged in an annular shape, and a plurality of second shower spouts are arranged concentrically with the first shower spout, and in the case of raw water, from the first and second shower spouts The faucet with a water purifying function according to any one of claims 1 to 3, wherein the faucet is discharged and discharged from the second shower spout in the case of purified water.

(B) The faucet with a water purifying function according to item (A), wherein the second shower spouts are arranged on the inner peripheral side.
(C) The faucet with a water purification function according to item (A) or (B), wherein the second shower spout is used as the first shower spout.

  (D) In the case of raw water, a plurality of first shower spouts are arranged in an annular shape, and a plurality of second shower spouts are arranged at any one of front, rear, left and right on the same circumference as the first shower spout Is discharged from the first and second shower spouts, and in the case of purified water, the water is discharged from the second shower spouts. plug.

  24 ... water purification cartridge, 26 ... flow path switching mechanism as switching means, 44 ... water discharge plate, 46A ... first shower water discharge port, 46B ... second shower water discharge port.

Claims (3)

In a faucet with a water purification function, which is equipped with a water purification cartridge and can choose between raw water shower discharge and purified water shower discharge,
When a first shower spout having a large total opening area and a second shower spout having a small total opening area are provided and the raw water shower discharge is selected, water is discharged from the first shower spout and a clean water shower A water faucet with a water purifying function, comprising a switching means for switching a flow path so that water is discharged from the second shower water outlet when discharge is selected. The faucet with a water purifying function according to claim 1, wherein the switching means has a passage for discharging the raw water shower and a passage for discharging the purified water shower on the same circumference. A flow path forming member that forms a flow path between the first and second shower spouts and a water discharge plate is provided, and the flow path is partitioned corresponding to the first and second shower spouts, and the switching is performed. 3. The faucet with a water purifying function according to claim 1, wherein the means switches the supply of raw water or purified water to each section.

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