JPH06178974A - Water purifier - Google Patents

Abstract

PURPOSE:To reduce a running cost for maintaining a water purifying function. CONSTITUTION:The water purifier is constituted so that a cylindrical formed fiber activated carbon module 26 for water treatment is installed in a case 25 in a state that the inside of the case 25 is divided into a central space 1S1 surrounded thereby and an annular space 1S2 in its periphery, and water is purified by guiding water in a state from one of the spaces 1S1, 1S2, water is allowed to transmit through the formed fiber activated carbon module 26 in its wall thickness direction and reach the other, and the formed fiber activated carbon module 26 is constituted by superposing concentrically plural short- sized formed fiber activated carbon 32 in the axis center direction, and installing a seal 33 between their end faces.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a water purifier of a stationary type or a direct connection type which is connected to a faucet of a water supply and removes organic substances, free chlorine, suspended substances and microorganisms contained in water. In detail, a tubular molded fiber activated carbon module for water treatment is installed in a case so as to partition the inside of the case into a central space that surrounds it and an annular space around it. The present invention relates to a device configured to perform water purification by allowing water to pass through an activated carbon module in a thickness direction thereof to reach the other side.

[0002]

2. Description of the Related Art Conventionally, a molded fiber activated carbon module has been provided with one molded fiber activated carbon over the entire length in the axial direction of the module.

[0003]

However, according to the above-mentioned conventional technique, when the molded fiber activated carbon module is treated to be long in the axial direction, that is, to be long and treated with a small flow resistance, the molded fiber activated carbon is also treated. It was inevitably long and it was difficult to obtain a uniform density in terms of manufacturing technology. This means that when used, water will be permeable to the low density portion of the molded fiber activated carbon, and the high density portion will be hardly used.
As a result, the low density part where water permeates well loses the desired water purification performance such as dechlorination and deorganization at an early stage, and free chlorine etc. leaks, so to maintain the water purification performance, However, there is a drawback that the running cost is high because it needs to be replaced even though the water purification performance of the large part remains. An object of the present invention is to reduce the running cost for maintaining the water purification function.

[0004]

A feature of a water purifier according to the present invention is that a plurality of short-length molded fiber activated carbons are superposed concentrically in the axial direction to form the molded fiber activated carbon module, and between the end faces thereof. The point is that a seal is installed.

[0005]

[Function] Since the molded fiber activated carbon module is configured by stacking a plurality of short molded fiber activated carbons in the axial direction, each molded fiber activated carbon to be used has a short length and a uniform density. it can. Moreover, as described above, when the short-shaped molded fiber activated carbons are overlapped, a space between the abutting end faces thereof serves as a flow path for communicating the central space and the annular space, but since the seal is provided to stop the water, the activated carbon No water flows from one space to the other without any treatment.

[0006]

According to the present invention, therefore, water is evenly permeated through the entire molded fiber activated carbon without causing treatment failure, and the entire molded fiber activated carbon is used evenly, and the replacement cycle is lengthened. The running cost can be reduced.

[0007]

EXAMPLE An example of application to a stationary type water purifier is shown in the first example, and an example of application to a faucet direct connection type water purifier is shown in the second example. [First Embodiment] As shown in FIGS. 1 to 4, the stationary water purifier includes a faucet unit U1 attached to a faucet A and a water purifier unit U2.

As shown in FIGS. 5 to 7, the faucet unit U1 is connected to the faucet A at an upper portion thereof through a connecting and coupling means, and a water discharge portion is connected to a lower portion of the switching valve 1. Is internally configured in a case including an upper case 2 and a lower case 3. The upper case 2 and the lower case 3 are assembled into a single case by elastically engaging the recess of the upper case 2 of the claw 4 formed integrally with the lower case 3 and fastening it with a screw 5. A decorative plate 6 for an internal visual inspection window or for giving an accent to the appearance is fitted in a part of the portion. The water discharge part has a central main water discharge flow path 7 and an annular shower water discharge flow path 8 located around the main water discharge flow path 7. In addition, the main water discharge passage 7 and the shower water discharge passage 8 are separated from each other, and the baffle plate 9 that circumferentially disperses the water that has flowed into the shower water discharge passage 8 from above is screwed into the lower case 3. The shower cap 12 is mounted to form one discharge hole 10 from the main water discharge passage 7 and a large number of shower discharge holes 11 from the shower water discharge passage 8. The switching valve 1
Is a valve box 13, a rotary valve body 14 rotatably mounted in the valve box 13 around a horizontal axis, and a valve shaft 1 of the rotary valve body 14.
5 has an operation lever 16 mounted in a non-rotating state. The valve box 13 has a raw water inlet port AP1 communicating with the faucet A, a first outlet port AP2 communicating with the main discharge passage 7, and a second outlet port AP3 communicating with the shower discharge passage 8. A raw water outlet port AP4 and a purified water inlet port AP5 are formed. The raw water outlet port AP4 is connected to a raw water take-out pipe 17 which is connected at one end to a raw water hose H1 for supplying raw water to the water purifier unit U2, and the purified water inlet port AP5.
Is a clean water receiving pipe 1 that is connected to the clean water hose H2 at one end.
8 is connected. And each of the ports AP1, AP
2, 2, AP3, AP4, AP5 are loaded with packing 19 for sealing the outer peripheral surface of the rotary valve body 14.
On the other hand, as shown in FIGS. 9 and 10, the rotary valve body 14 communicates with the raw water inlet port AP1 and the first outlet port AP2 in a state of being in the first rotational posture with respect to the valve box 13, and A first water passage AR1 for communicating a second outlet port AP3 with the raw water inlet port AP1 in a second rotational posture rotated in one direction from the first rotational posture;
As also shown in FIG. 11, a raw water extraction water channel that connects the raw water inlet port AP1 to the raw water outlet port AP4 in a state in which the raw water inlet port AP1 communicates with the raw water inlet port AP1 in the third rotational posture in which the first rotational posture is rotated in the direction opposite to the second rotational posture. AR2 and a purified water channel AR3 for communicating the first outlet port AP2 with the purified water inlet port AP5 in the state of the third rotation posture are also formed (see also FIG. 8). Therefore, the faucet unit U1 is shown in FIG.
As shown in FIG. 10, by rotating the rotary valve body 14 of the switching valve 1 to the first rotation posture, the raw water straight state in which the raw water from the faucet A is discharged as it is at a thick flow velocity is revealed, and is shown in FIG. Thus, by rotating the rotary valve body 14 of the switching valve 1 to the second rotation posture, the faucet A
The raw water shower state in which the raw water from the tap water is discharged in the shower state is revealed, and the raw water from the faucet A is passed through the raw water hose H1 by rotating the switching valve 1 to the third rotation posture as shown in FIG. The water is supplied to the water purifier unit U2, and the water purification hose H2 is supplied from the water purifier unit U2.
It is configured to show a purified water state in which the purified water returned through the is discharged. It should be noted that the rotary valve body 14 is for a detent that holds the rotary valve body 14 in each of the above-described rotational postures by engaging a recess formed in the inner peripheral surface of the valve box 13 through the elastic force of a spring. Ball 20 is incorporated. Further, the raw water take-out pipe 17 is equipped with a safety valve 21 which is opened to release pressure when the flow path resistance on the downstream side exceeds a set value, that is, to release raw water to the outside. Further, a convex lens-shaped display window 22 for visually observing the inside from the outside is formed in the upper case 2,
A bowl-shaped display member 23 is attached to the valve shaft 15 so as to rotate integrally therewith, and corresponds to the display window 22 when the rotary valve body 14 of the display member 23 is in each rotation posture. A mark indicating the rotational posture of the rotary valve body 14 is attached to a part, that is, a part visible from the display window 22.

The water purifier unit U2 is shown in FIGS.
4, the water purifier body 24 and the water purifier body 2
4 is provided with two removable first and second water treatment cartridges K1 and K2 and a cover C, and an erroneous mounting preventing means. First, the cartridges K1 and K2 will be described.

As shown in FIG. 18, the first cartridge K1 has a case 25 in which a cylindrical molded fiber activated carbon module 26 for water treatment is surrounded by a central space 1S.
1 and an annular space 1S2 around the interior of the case 25 so as to partition the interior of the case 25. The molded fiber activated carbon module 26 is attached to the water purifier main body 24 in a vertical position so that the axis of the module 26 extends in the vertical direction. In the mounted state, water is introduced from one of the spaces 1S1 and 1S2 through the molded fiber activated carbon module 26 in the wall thickness direction to reach the other to purify the water. Case 25
Is composed of a container-shaped main body member 27 and a lid member 28 screwed into the lower end opening of the main body member 27. The fixing means of the molded fiber activated carbon module 26 to the case 25 is restricted from moving upward with respect to the case 25 by a plurality of circumferential rib portions 29 integrally formed on the inner peripheral surface of the main body member 27, and at the same time, the main body member. A pressing plate 30 whose downward movement with respect to the case 25 is restricted by a lid member 28 attached to the case 27 is provided, and the pressing plate 30 and the top plate portion of the main body member 27 sandwich the pressing plate 30 from above and below with respect to the case 25. And the lower end is fitted to the pressing plate 30, and the upper end is engaged with the restriction part 31 integrally formed on the top plate part of the main body member 27 at intervals in the circumferential direction. It is means for fixing the case 25 in the lateral direction <radial direction> by stopping. The molded fiber activated carbon module 26 is configured by stacking two molded fiber activated carbons 32 in a concentric state in the axial direction, and disposing a seal 33 which also serves as a frame between the end faces thereof. The seal 33 allows water to pass through the boundary between the upper and lower surfaces that come into contact with the upper and lower end surfaces of the molded fiber activated carbon 32 and the upper and lower end surfaces of the molded fiber activated carbon 32, and the water 1S
Molded fiber activated carbon 32 that goes back and forth between 1 and 1S2
Of the water-blocking projections 34, which are prevented by biting into the upper and lower end faces of the mold, and a plurality of circumferential directions, which abut on the upper and lower end peripheral faces of the molded fiber activated carbon 32 to prevent lateral displacement of the ends. Is integrally molded into a structure having a position regulation projection 35 and a plurality of circumferential stays 36 that come into contact with the inner peripheral surface of the body member 27 and regulate the lateral position with respect to the body member 27. Then, the tubular portion 37 is provided at the center of the pressing plate 30.
Are integrally formed in a state of protruding downward to form an external central water inlet / outlet channel 38 with respect to the central space 1S1, and the lid member 2 is provided in the annular space 1S2 at the peripheral portion of the pressing plate 30.
8 is formed with a communication hole 39 for communicating an annular space between the tubular portion 37 and the tubular portion 37, and the annular space is opened downward in the center of the lid member 28 with the tubular portion 37 facing downward. The communication hole 40 to be formed is formed concentrically with the tubular portion 37, and an external annular water inlet / outlet channel 41 for the annular space 1S2 is formed around the tubular portion 37. The tip portion of the lid member 28 forming the communication hole 40 is formed into a tubular shape. In addition, the pressing plate 30 and the main body member 27
The water blocking projections 42 and 43, which function in the same manner as described above, are also integrally formed on the top plate portion of the above. A rod-shaped hydrophobic ventilation member 44 is installed at the upper end of the upper part of the molded fiber activated carbon 32 such that one end thereof faces the central space 1S1 and the other end faces the annular space 1S2. In addition, the molded fiber activated carbon 32 has a density of 0.13 or more obtained by dividing the weight (g) in the molded state by the volume (cm ³ ) so as to have a filtering function. The hydrophobic ventilation member 44 is 7 kg / c when considering general use.
It is preferable to have a hydrophilic pressure of m ² or more, but the hydrophilic pressure is appropriately selected according to the use conditions and the like.

The second cartridge K2 has a case 4
5, a structure in which a hollow fiber membrane module 46 for water treatment is internally installed in a state in which a case 45 communicating with each other at the upper portion is partitioned into a central space 2S1 and an outer peripheral annular space 2S2, Water is introduced from one of the spaces 2S1, 2S2 through the hollow fiber membrane module 46 to reach the other to purify the water. The case 45
Has the same structure as the case 25 of the first cartridge K1, that is, a container-shaped main body member 27, and the main body member 2
7 and a lid member 28 that is screwed into the lower end opening. The fixing means for fixing the hollow fiber membrane module 46 to the case 45 is the lid member 2 attached to the regulating portion 31 and the main body member 27.
It is fixed to the case 45 in the up-down direction << axial direction >> by sandwiching it from the up-down direction with 8, and the lower end portion is fitted to the lid member 28, and the upper end portion is locked to the restricting portion 31. It is a means for fixing in the lateral direction <radial direction> with respect to 45. The hollow fiber membrane module 46 is provided with a container-shaped frame 47 which is fixed to the case 45 and is formed by partitioning the annular space 2S2 and the central space 2S1 in communication with each other at the upper end.
The bonded member 4 that holds a large number of hollow fiber membranes 48
9 is installed so that the upper end opening of the frame 47 is closed and the hollow fiber membrane 48 is arranged in the frame 47. The frame 47 includes a cylinder 50 and a lid 51 that closes the lower end opening thereof. The hollow fiber membrane 48 of the hollow fiber membrane module 46 and the central space 2S1 in which the hollow fiber membrane 48 is installed are configured such that the volume of the hollow fiber membrane 48 is 60 to 90% of the volume of the space 2S1. The tubular portion 52 is integrally formed in the central portion of the lid 51 so as to project downward, and an external central water inlet / outlet channel 53 for the central space 2S1 is formed. A communication hole 40 for opening the annular space to the lower outside in a state where the tubular portion 52 is exposed to the outside at the center is formed concentrically with the tubular portion 52, and an external annular water inlet / outlet path for the annular space 2S2 is formed. 54 is formed around the cylindrical portion 52. Of course, similarly to the above, the tip portion of the lid member 28 forming the communication hole 40 is formed in a tubular shape. In addition, the frame 47 is provided with a water inflow / outflow regulating pipe 55 that connects a relatively high portion of the central space 2S1 formed from the inside of the frame 47 to the central water inflow / outflow path 53.

As shown in FIGS. 16 and 17, the water purifier body 24 has a first mounting portion 56 and a second cartridge K2 for detachably mounting the first cartridge K1 on the upper surface thereof. A second mounting portion 57 for freely mounting is provided, and a case including an upper case 58 and a lower case 59 is equipped with a flow path.

The first mounting portion 56 has a cylindrical connection port portion 60 on the top plate of the upper case 58, into which the distal end cylindrical portion of the lid member 28 of the cartridge K1 is rotatably inserted around its axial center. A plurality of circumferential pressing pieces for fixing the lid member 28 to the upper case 58 by sandwiching the mounting plate 61, which is formed integrally with the lid member 28 at intervals in the circumferential direction, with the upper surface of the upper case 58 from above and below. 62 is formed integrally with the upper case 58. That is, the distal end tube portion of the lid member 28 is inserted into the connection opening 60 until the attachment plate 61 contacts the upper surface of the upper case 58 so that the attachment plate 61 does not contact the pressing piece 62, and the lid member 28 is held in that state. The cartridge K1 is mounted by an operation that is rotated around the axis and inserted between the pressing piece 62 and the upper surface of the case, and is detached by an opposite operation. And the first mounting portion 56
Has a rotation restricting portion 63 that is in contact with the mounting plate 61 and restricts the posture of the lid member 28 around the axis with respect to the upper case 58, and a cam portion 64 that lifts the mounting plate 61 that rotates in the detaching direction upward. . The second mounting portion 57 is the first mounting portion 56.
It has the same structure as.

The main components of the flow path are the connecting pipe unit 65, the water / reverse cleaning switching valve 66, the first connecting member 67 for the first cartridge K1, and the second connecting member K2 for the second cartridge K2. And the connecting member 68.

The connection pipe unit 65 is connected at one end to the raw water hose H1, a raw water inlet pipe 69, at one end to the purified water hose H2 at a purified water outlet pipe 70, and at one end to a drain hose H3. It is integrally formed with the drain pipe 71 and is attached to the upper case 58. The raw water inlet pipe 69 is equipped with a float valve body 72 that comes into contact with a small diameter portion formed in the raw water inlet pipe 69 to prevent backflow.

The clean water / backwash switching valve 66 is provided with a valve box 73.
And a rotary valve body 74 rotatably mounted in the valve box 73 so as to be rotatable around the horizontal axis, and an operating means of the rotary valve body 74.

As shown in FIGS. 19 and 20, the valve box 73 has first and second inlet ports LP1 and LP2.
And the first to third outlet ports LP3, LP4, LP5
And an entrance / exit port LP6. As shown in FIG. 19 and FIG. 20, the rotary valve body 74 has a first position when the rotary valve body 74 is in the first rotation posture.
Of the first water passage LR1 for communicating the inlet / outlet port LP6 with the inlet port LP1 of the first inlet port LP1 and the second outlet port LP2 to the second inlet port LP2 with the rotary valve body 74 in the first rotation posture.
The second water channel LR2 for communicating the three and the rotary valve body 74 are the second
The third water passage LR3 for communicating the second outlet port LP4 with the first inlet port LP1 in the rotating posture, and the inlet / outlet port LP in the state where the rotary valve body 74 is in the second rotating posture.
4th water channel LR which connects 3rd exit port LP5 to 6
4 are formed. The first and second inlet ports LP1 and LP2, the first and second outlet ports LP
3, LP4 is equipped with a packing 75 for contacting and sealing the peripheral surface of the rotary valve body 74, the purified water outlet pipe 70 is connected to the first outlet port LP3, and the third outlet port is connected. A drain pipe 71 is connected to LP5.

The operating means is, as shown in FIG.
A disc-shaped operating body 77 is attached to the valve shaft 76 of the rotary valve body 74 in a non-rotating state, and engages a pin 78 attached to the operating body 77 at its lower end to slide the operating body 77 downward. A lower rod 79 that rotates from the first rotation posture to the second rotation posture is provided, and a return spring 80 that gives an upward return force to the lower rod 79 is provided.
An operation tool 82 for pushing the 9 downward through the upper rod 81 is provided. That is, the operation tool 8
The rotary valve body 74 is automatically returned from the second rotation posture to the first rotation posture by releasing the operation on the second rotation posture. The components except the upper rod 81 and the operating tool 82 are incorporated in the water purifier body 24.

The first connecting member 67 is a connecting portion 83 for inserting and connecting to the connecting port portion 60, and a connecting portion for inserting and connecting the cylindrical portion 37 of the first cartridge K1 with the attachment to the first mounting portion 56. 84, and the raw water inlet pipe 6
9 and the first inlet port LP1 of the valve box 73 of the water purification / backwash switching valve 66 to connect the inside of the raw water inlet pipe 69 to the annular inlet / outlet channel 41 of the first cartridge K1. The central water inlet / outlet channel 38 of the first cartridge K1 is connected to the first inlet port LP1 for communication, and is attached to the upper case 58. The second connecting member 68 has an outer peripheral connecting portion 85 that is inserted and connected to the connecting port portion 60, and the second attaching portion 57.
Connection part 86 for inserting and connecting the tubular portion 52 of the second cartridge K2 with the mounting of the second cartridge K2, and the inlet / outlet port LP6, the second inlet port LP2, and the second outlet port of the water purification / backwash switching valve 66. By connecting to each of the LP4, the inlet / outlet port LP6 of the water purification / backwash switching valve 66 is connected to the central inlet / outlet channel 53 of the second cartridge K2, and the second cartridge K2 is connected.
The second inlet port LP2 and the second outlet port LP4 of the purified water / backwash switching valve 66 are connected to the annular inlet / outlet channel 54 for communication, and are attached to the upper case 58.

Therefore, in this water purifier unit U2, the raw water sent from the faucet unit U1 through the raw water hose H1 is referred to as << 1 >> as shown in FIG. In the state in which 74 is switched to the first rotation posture, the raw water inlet pipe 69, the first connecting member 67, the annular space 1S2 of the first cartridge K1, the molded fiber activated carbon module 26, the central space 1S1, and the first connecting member 6
7, first inlet port LP of water purification / backwash switching valve 66
1, the inlet / outlet port LP6 of the clean water / backwash switching valve 66,
Second connection member 68, central space 2S1 of second cartridge K2, hollow fiber membrane module 46, annular space 2S
2, the second connecting member 68, the second inlet port LP2 of the purified water / backwash switching valve 66, the first outlet port LP3 of the purified water / backwash switching valve 66, the purified water outlet pipe 70, and the order of flow thereof, While being processed by the cartridges K1 and K2 and returned as purified water to the faucet unit U1 via the purified water hose H2, << 2 >> As shown in FIG. 20, from the above state, the rotary valve body of the purified water / backwash switching valve 66 In the state in which 74 is switched to the first rotation posture, the raw water inlet pipe 69, the first connecting member 67, the annular space 1S2 of the first cartridge K1,
Molded fiber activated carbon module 26, central space 1S1, first connecting member 67, first inlet port LP1 of purified water / backwash switching valve 66, second outlet port LP4 of purified water / backwash switching valve 66, second connection The member 68, the annular space 2S2 of the second cartridge K2, the hollow fiber membrane module 46,
Central space 2S1, second connecting member 68, inlet / outlet port LP6 of water purification / backwash switching valve 66, third outlet port L
P5, drainage pipe 71, and the flow in that order, are processed by the first cartridge K1, and then the hollow fiber membrane module 46 of the second cartridge K2 is backwashed and discharged through the drainage hose H3. That is, the state of << 1 >> is the purified water supply state, and the state of << 2 >> is the hollow fiber membrane module 4
This is a state in which 6 is backwashed.

The cover C is in the form of a container,
The water purifier body 2 is mounted by fitting the lower end portion into the upper end step portion of the upper case 58 of the water purifier body 24.
It covers the two cartridges K1 and K2 mounted on the cover 4, and the upper case 58 is automatically engaged with the hole 87 formed in the cover C by the upper engagement portion 88 when the cover C is fitted. The engaging piece 89 for preventing the slip-off is integrally formed in a state of protruding upward, and the upper engaging portion 88
Is a pressing operation part for releasing the engagement. Further, the operating tool 82 of the operating means is attached to the cover C in a state of forming a part of the upper portion of the cover C, and the upper rod 81 is attached to the inner surface of the cover C. 90 is an operation tool 8
2 return spring.

The diameter of the erroneous mounting preventing means, the cylindrical portion 52 of the second cartridge K2 and the corresponding connecting portion 86 of the second connecting member 68 is set to the cylindrical portion 37 of the first cartridge K1 and the corresponding first connecting portion. The diameter of the connecting portion 84 of the member 67 is set larger than the diameter of the connecting portion 84 of the first cartridge K1, and the insertion depth of the cylindrical portion 37 of the first cartridge K1 into the connecting portion 86 of the cylindrical portion 52 of the second cartridge K2 is inserted into the connecting portion 86. The contact surfaces 91, 92 that are deeper than the depth and contact the tips of the cylindrical portions 37, 52 corresponding to the respective connection portions 84, 86 to regulate the insertion depth are formed. Therefore, the second cartridge K to the first mounting portion 56
The erroneous mounting of No. 2 is prevented by the cylindrical portion 52 not being able to be inserted into the connecting portion 84, and the first cartridge K to the second mounting portion 57 is prevented.
The erroneous mounting of No. 1 is prevented by not inserting the tubular portion 37 into the connecting portion 86 with a predetermined depth. An O-ring 93 seals between the first connecting member 67 and the upper case 58 and between the second connecting member 68 and the upper case 58,
Reference numeral 94 is an O-ring for sealing between the lid member 28 and the upper case 58, and an O-ring for sealing is provided at a connecting portion of each part.

[Second Embodiment] A faucet direct connection type water purifier is shown in FIG.
As shown in FIGS. 1 to 27, the water purifier main body 100 is attachable to and detachable from the faucet A, and the water purifying cartridge K is detachably attached to the side surface of the water purifier main body 100. The attachment / detachment direction of the cartridge K is the lateral direction.

The water purifier body 100 is shown in FIGS.
As shown in Fig. 1, the switching valve 1 is connected and connected to the faucet A through a connecting and connecting means at the upper part and a water discharge part is connected to the lower part.
A is internally configured in a case including an upper case 2A and a lower case 3A. Upper case 2A and lower case 3A
Is the upper case 2 of the claw 4A formed integrally with the lower case 3A.
By elastically engaging the recess of A and fastening with screw 5A,
The lower case 3A is assembled in a state of one case, and the lower case 3A has a purified water outlet a1 and a cleaning drainage outlet a2.
And a relief water drain port a3 are formed. Moreover, a decorative plate 6A for the internal visual inspection window or for giving an accent to the external appearance is fitted in a part of the joint between the upper case 2A and the lower case 3A. The water discharge part has a central main water discharge flow path 7A and an annular shower water discharge flow path 8A located around the main water discharge flow path 7A. Further, the main water discharge passage 7A and the shower water discharge passage 8A are partitioned from each other, and the baffle plate 9A for circumferentially dispersing the water flowing into the shower water discharge passage 8A from above is screwed into the lower case 3A. The shower cap 12A is mounted to form one discharge hole 10A from the main water discharge passage 7A and a large number of shower discharge holes 11A from the shower water discharge passage 8A. The switching valve 1A includes a valve box 13A and a rotary valve body 1 in which the switching box 1A is rotatably mounted around a horizontal axis.
4A and an operation lever 16A mounted on the valve shaft 15A of the rotary valve body 14A in a non-rotating state. And as shown also in FIGS. 35 to 38, the valve box 13A is divided into two in the axial direction. That is, the raw water inlet port P1 communicating with the faucet A, the first outlet port P2 communicating with the main water discharge passage 7A, and the shower water discharge passage 8
A straight shower switching main body 101 having a second outlet port P3 communicating with A is formed, a raw water supply port P4 to the cartridge K, a purified water receiving port P5 from the cartridge K, and the purified water discharge port. Purified water take-out port P6 connected to a1 via the purified water pipe 102
And a raw water supply port P7 for cleaning the cartridge K
And an extension part 1 for clean water cleaning, which is formed with a cleaning drainage discharge port P8 communicating with the cleaning drainage discharge port a2 and a relief port P9 communicating with the relief water discharge port a3.
It has 03. A packing 19A that seals between each of the ports P1 to P9 and the outer peripheral surface of the rotary valve body 14A.
Is loaded in the water purification pipe 102 by the spring 104 and is displaced in the longitudinal direction of the water purification pipe 102 in accordance with the pressure of the water purification water.
The detection body 105 is installed to display the clogging degree in the cartridge K at a position in the flow direction with respect to. The water purification pipe 102 is made of a transparent material so that the detection body 105 can be viewed from the outside.
Is visible from the outside through the decorative plate 6A at the flow direction position corresponding to the clogging state in which the pressure of purified water becomes equal to or less than the set value. That is, the clogging is displayed when the detection body 105 is visible through the decorative plate 6A. The raw water supply port P4, the cleaning raw water supply port P7, and the purified water receiving port P5 are arranged in a line along the axial direction, and are arranged in the stated order from one end side in the axial direction, The purified water take-out port P6 is arranged at the same axial center position as the purified water receiving port P5, and the relief port P9 is arranged at an intermediate position in the axial direction between the raw cleaning water supply port P7 and the purified water receiving port P5. . On the other hand, the rotary valve body 14A is also divided into two main parts 101 and extension parts 103 in the axial direction.
35 to 38, the raw water inlet port P1 is communicated with the first outlet port P2 in the first rotation posture with respect to the valve box 13A, and the unidirectional rotation is performed from the first rotation posture. The first water passage R1 that connects the raw water inlet port P1 to the second outlet port P3 in the second rotation posture that is rotated to the side, and the second water passage that is second with respect to the first rotation posture.
A raw water channel R2 communicating with the raw water inlet port P1 in a state in which the raw water inlet port P1 is in a third rotational posture rotated in a direction opposite to the rotational posture and a fourth rotational posture rotated in a direction further opposite to the rotational posture;
The first water hole r1 that communicates the raw water supply port P4 with the raw water channel R2 in the third rotation posture, and the third water communication port P5 that communicates with the purified water extraction port P6 in the third rotation posture. Washing and draining the water passage R3, the second water hole r2 that communicates the raw water supply port P7 for cleaning with the raw water passage R2 in the fourth rotation posture, and the raw water supply port P4 in the fourth rotation posture. Discharge port P
No. 4 water passage R4 communicating with No. 8 and a continuous relief port P
9 so as to communicate with the groove 9 extending around the entire circumference of the axis of rotation.
And a relief water channel R5 that connects the groove 106 to the raw water channel R2. In addition, between the inner peripheral surface of the valve box 13A and the outer peripheral surface of the rotary valve body 14A, a first valve portion 107 having a cleaning raw water supply port P7 and a second valve portion having a relief port P9 are provided. A ring-shaped seal 109 having a U-shaped cross section for preventing water from flowing between the valve portions 107 and 108 is installed at a boundary portion with the valve portion 108, and a third valve portion provided with a purified water receiving port P5. 110 and the second
At the boundary with the valve portion 108 of the both valve portions 107, 108.
A ring-shaped seal 109 having a U-shaped cross section is installed to prevent water from flowing between them. And the valve body 111 that opens and closes the relief port P9, and normally the relief port P
While pressing the valve body 111 so as to close 9
A safety valve 113 including a spring 112 that allows the opening operation of the valve body 111 when the internal pressure of the raw water channel R2 rises to a set value is lost.

The rotary valve body 14A includes a valve box 13
By engaging the concave portion formed on the inner peripheral surface of A through the elastic force of the spring, the rotary valve body 14A is moved to the above-mentioned first to second portions.
Ball 20A for detent held in each of the third rotation postures
And a return spring 114 for automatically returning the rotary valve body 14A from the fourth rotation posture to the third rotation posture when the operation is released. Furthermore, in the upper case 2A,
A convex lens-shaped display window 22 for visually observing the inside from the outside
A is formed, and a bowl-shaped display member 2 is provided on the valve shaft 15A.
3A is mounted so as to rotate integrally therewith, and a portion of the display member 23A corresponding to the display window 22A when the rotary valve body 14A is in each rotation posture, that is, a portion visible from the display window 22A. Is marked with a mark indicating the rotational attitude of the rotary valve body 14A. In the cartridge K, a tubular molded fiber activated carbon module 26A for water treatment is installed in a case 25A so as to partition the inside of the case 25A into a central space S1 surrounded by the same and an annular space S2 around the central space S1. The hollow fiber membrane module 46A is arranged in a central space S1 surrounded by the molded fiber activated carbon module 26A, and the molded fiber activated carbon module 26A is passed through the annular space S2 in the thickness direction. After reaching the central space S1, the hollow fiber membrane module 4
Water is introduced into the state of being permeated through 6A to purify the water. The case 25A is a container-shaped body member 27.
A and a lid member 28A screwed into the lower end opening of the main body member 27A, and the lid member 28A is connected to the raw water supply port P4 of the valve box 13A as the water purifier main body 100 is attached to the lid member 28A. The space S2 of the raw water supply port P
4 and the water purifier main body 100.
Connection portion 116 for connecting the central space S1 to the purified water receiving port P5 by connecting it to the purified water receiving port P5 of the valve box 13A, and the valve box 13A attached to the water purifier body 100. Is integrally formed with a cleaning connecting portion 117 having a check valve V, which is connected to the cleaning raw water supply port P7 and connects the central space S1 to the cleaning raw water supply port P7. Then, by making the interval between the connection part 115 and the cleaning connection part 117 and the interval between the purified water extraction connection part 116 and the cleaning connection part 117 different from each other in the circumferential part, the horizontal direction attached to the water purifier body 100. The one that is located in the upper position is decided. The means for fixing the molded fiber activated carbon module 26A to the case 25A is the space S
1, the central space and the annular space corresponding to S2
It is fixed to the case 25A in the axial direction by being sandwiched by the partition inner peripheral wall 118 integrally formed on the lid member 28A so as to be formed in A and the bottom plate portion of the main body member 27A,
It is means for fixing the hollow fiber membrane module 46A and the bottom plate portion in an annular portion 119 integrally formed with the hollow fiber membrane module 46A in the radial direction with respect to the case 25A. The molded fiber activated carbon module 26A is configured by stacking two molded fiber activated carbons 32A in a concentric state in the axial direction and arranging a seal 33A also serving as a frame between the end faces thereof. Seal 33A
As shown in FIG. 34, the water flows between the spaces S1 and S2 through the boundaries between the upper and lower surfaces that contact the upper and lower end surfaces of the molded fiber activated carbon 32A and the upper and lower end surfaces of the molded fiber activated carbon 32A. Annular water-stop projection 34A that is prevented by cutting into the upper and lower end surfaces of the molded fiber activated carbon 32A
And a plurality of circumferential position regulating projections 35A that come into contact with the upper and lower end peripheral surfaces of the molded fiber activated carbon 32A and prevent lateral displacement of the end portions. The end face of the molded fiber activated carbon 32A and the inner peripheral wall 118
The seal 33A is also interposed between the above and the bottom plate portion of the main body member 27A, and the annular water-stop projection 34A that functions in the same manner as above is integrally formed. The molded fiber activated carbon 32A has a density of 0.13 or more obtained by dividing the weight (g) in the molded state by the volume (cm ³ ) so as to have a filtering function. The hollow fiber membrane module 46A is
A cylindrical frame 47A fixed to the case 25A by fitting one end portion with the inner peripheral wall 118 of the lid member 28A and the other end portion with the annular portion 119 of the bottom plate portion is provided, and one end of this frame 47A is provided. A large number of hollow fiber membranes 4
The bonded member 49A holding 8A is attached to the hollow fiber membrane 4
8A is fitted and installed in the frame 47A, that is, in a state of being arranged in the central space S1, and the frame 47A is provided with a large number of holes 120 for allowing water that has permeated through the molded fiber activated carbon module 26A to flow into the central space S1. Formed and configured. Hollow fiber membrane 48 of the hollow fiber membrane module 46A
A and the central space S1 for accommodating it are the hollow fiber membrane 48
The volume of A is 60 to 90% of the volume of the space S1. As shown in FIG. 33, the lid member 28A is provided with an air vent guide 121 for restricting the water output from the connecting portion 115 to only the uppermost portion of the annular space in the mounted state. I am allowed.
The means for mounting and fixing the cartridge K on the water purifier main body 100 is a holding portion 122 for holding the lid member 28A of the cartridge K by inserting the lid member 28A of the cartridge K from the lateral direction into the upper case 2A and the lower case 3A and holding the lid member 28 at the connection position in a positioned state. A slider 124 that is integrally formed with the lower case 3A and is vertically slidable and has an operation portion 123 that is upward at the lower end.
Is mounted such that the operating portion 123 at the lower end thereof projects downward from the lower case 3A, and a return spring 125 for sliding the slider 124 to the lower position when the operation is released is provided, and the slider 124 is provided on the slider 124.
The locking fixing piece 127 for locking the cartridge K with respect to the holding portion 122 by locking the locking portion 126 formed integrally with the lid member 28A of the cartridge K positioned at the connection position as the cartridge K slides downward. It is formed integrally. In addition, the cam surface 128 is pushed by the locking portion 126 when the cartridge K is inserted into the connecting portion and slides the locking fixing piece 127 to the locking release position against the restoring force. By forming the cartridge K, the locking fixing piece 127 is locked with the insertion of the cartridge K.
6 is configured to be automatically locked. In addition, a passage 129 is formed in the operation portion 123 for discharging the water leaking into the lower case 3A to the outside.

Therefore, in this faucet direct connection type water purifier, the following state is revealed by operating the switching valve 1A. << 1 >> As shown in FIG. 35, by rotating the rotary valve body 14A to the first rotation posture, the raw water from the faucet A becomes
Raw water inlet port P1, first water channel R1, first outlet port P
Flowing in the order of 2 and the description thereof, a raw water straight state in which raw water is discharged from one discharge hole 10A in a thick flux state appears. << 2 >> As shown in FIG. 36, by rotating the rotary valve body 14A to the second rotation posture, the raw water from the faucet A becomes
Raw water inlet port P1, first water channel R1, second outlet port P
3 and the order in which the shower discharge holes 11A flow.
A raw water shower state in which raw water is discharged in a shower state appears. << 3 >> As shown in FIG. 37, by rotating the rotary valve body 14A to the third rotation posture, the raw water from the faucet A is
Raw water inlet port P1, raw water channel R2, raw water supply port P
4, the connecting portion 115, the annular space S2 of the cartridge K,
Molded fiber activated carbon module 26A, central space S1, hollow fiber membrane module 46A, purified water extraction connection 116,
The purified water receiving port P5, the third water passage R3, the purified water pipe 102, and the order in which they are described are processed into the purified fiber activated carbon module 26A and the hollow fiber membrane module 46A in order to become purified water, and the purified water is discharged from the purified water discharge port a1. The clean water condition is revealed. << 4 >> As shown in FIG. 38, by rotating the rotary valve body 14A to the fourth rotation posture, the raw water from the faucet A becomes
Raw water inlet port P1, raw water channel R2, washing raw water supply port P7, washing connection 117, hollow fiber membrane module 4
6A, the central space S1 of the cartridge K, the molded fiber activated carbon module 26A, the annular space S2, the connecting portion 115,
The backwash state in which the raw water supply port P4, the fourth water channel R4, the wash drainage discharge port P8, and the wash drainage outlet a2 flow in that order to backwash the hollow fiber membrane module 46A and discharge the wash drainage to the outside is To be revealed.

Although the number of the molded fiber activated carbons used in the molded fiber activated carbon module is two in the above embodiment, it may be three or more. In short, it is important to use molded fiber activated carbon of a size that allows molding to be carried out in a uniform density state.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing a raw water straight state of a stationary water purifier.

FIG. 2 is a schematic sectional view showing a raw water shower state of a stationary water purifier.

FIG. 3 is a schematic cross-sectional view showing a purified water supply state of a stationary water purifier.

FIG. 4 is a schematic cross-sectional view showing a backwash state of a stationary water purifier.

FIG. 5 is a vertical sectional side view showing a faucet unit.

FIG. 6 is a transverse plan view showing the faucet unit.

FIG. 7 is a vertical sectional front view showing a faucet unit.

FIG. 8 is a perspective view of a rotary valve body.

FIG. 9 is a sectional view of a rotary valve body showing a straight state of raw water.

FIG. 10 is a sectional view of a rotary valve body showing a raw water shower state.

FIG. 11 is a sectional view of a rotary valve body showing a purified water state.

FIG. 12 is a vertical sectional front view showing the water purifier unit.

FIG. 13 is a transverse plan view showing the water purifier body of the water purifier unit.

FIG. 14 is a cutaway side view showing the water purifier unit.

FIG. 15 is a sectional view showing an operating means.

FIG. 16 is a vertical cross-sectional view of a main part showing a state in which the water purifier body and the cartridge are separated from each other.

FIG. 17 is a plan view of the water purifier body

FIG. 18 is an exploded perspective view showing a first cartridge.

FIG. 19 is a cross-sectional view showing a purified water state of the purified water / backwash switching valve.

FIG. 20 is a cross-sectional view showing a backwash state of the clean water / backwash switching valve.

FIG. 21 is a schematic cross-sectional view showing a raw water straight state of a faucet direct connection type water purifier.

FIG. 22 is a schematic cross-sectional view showing a raw water shower state of a water faucet direct connection type water purifier.

FIG. 23 is a schematic cross-sectional view showing a purified water state of a faucet direct connection type water purifier.

FIG. 24 is a schematic cross-sectional view showing a backwash state of a water faucet direct connection type water purifier.

FIG. 25 is a front view of the entire faucet direct connection type water purifier.

FIG. 26 is a side view of the entire faucet direct connection type water purifier.

FIG. 27 is a plan view of the entire faucet direct connection type water purifier.

FIG. 28: Vertical side view of the entire faucet direct connection type water purifier

FIG. 29 is a cross-sectional plan view of the main part of the water faucet direct connection type water purifier.

FIG. 30 is a vertical sectional front view of the entire faucet direct connection type water purifier.

FIG. 31 is a plan view of a rotary valve body.

FIG. 32 is a side view of the rotary valve body.

FIG. 33 is a rear view of the lid member of the cartridge.

FIG. 34 is a perspective view of a seal

FIG. 35 is a sectional view showing a raw water straight state of the switching valve.

FIG. 36 is a sectional view showing a raw water shower state of the switching valve.

FIG. 37 is a cross-sectional view showing a purified water state of the switching valve.

FIG. 38 is a sectional view showing a backwash state of the switching valve.

[Explanation of symbols]

 25 case 26 molded fiber activated carbon module 1S1 central space 1S2 annular space 32 short molded fiber activated carbon 33 seal

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiichiro Miyata, 17 Chudoji Minami-cho, Shimogyo-ku, Kyoto City Kyoto Prefecture Omron Life Science Institute

Claims (1)

[Claims] 1. A case is provided with a tubular molded fiber activated carbon module for water treatment, which is internally installed so as to partition the inside of the case into a central space surrounded by the module and an annular space around the central space, and from one of the spaces. A water purifier configured to permeate water through a molded fiber activated carbon module in the thickness direction to reach the other and to purify water, wherein the molded fiber activated carbon module comprises a plurality of A water purifier in which the short-length molded fiber activated carbons of are stacked concentrically in the axial direction and a seal is installed between their end faces.