JPH06154738A - Water purification device - Google Patents

Abstract

PURPOSE:To form a water purification device not protruding from a tap to the user's side to a large extent and improve how to use by locating a water purification cartridge and a water flow changeover mechanism in the lateral direction of the tap in a water purification device fitted on the tap for water. CONSTITUTION:A water purification device 1 is provided with an upper case 2, a lower case 3, a water purification cartridge 5 covered with a cover 4 on the upper case 2 and a water flow changeover mechanism 6 between the upper and lower cases 2 and 3. Raw water from a tap 7 or the like is allowed to communicate with the water flow changeover mechanism 6 through a communication mechanism 8. In that case, the communication mechanism 8 is disposed in the embodiment of extending a connecting case 16 connected to the tap 7 and an intermediate connecting case 17 of L-shaped section connecting the case 16 with a valve case 10 of the water flow changeover mechanism 6 in the direction crossing the moving direction of a valve of the water flow changeover mechanism 6. Selected valve operating bodies are disposed on the front of the upper and lower cases 2 and 3, and a protruding of the water purification device 1 from the tap to the user's side is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-sized water purifying device which is directly attached to a faucet for use.

[0002]

2. Description of the Related Art As shown in Japanese Patent Application Laid-Open No. 61-93886, this type of water purifier is fitted with a switching valve body for switching to the respective water passages when using raw water straight, when using raw water shower and when using purified water. The fitting long hole and the communication passage for guiding raw water from the faucet to the fitting long hole are arranged side by side in the same direction, and further, the faucet and the operation lever of the water flow switching mechanism are provided on the left and right of the water purification cartridge. It is arranged to be placed.

[0003]

In the above-described conventional example, when the water purifier is attached to the faucet so that the operation lever of the water flow switching mechanism is on the front, the water purifier is greatly protruded from the faucet to the user side. Therefore, there was a problem that it was difficult to use.

Therefore, in the above-mentioned conventional example, the water purifier is mounted on the faucet so that the water purifying cartridge and the operating lever are arranged in the lateral direction of the faucet, so that the operating lever is located on the right side of the faucet. If the water purification device is attached to the faucet, it will be inconvenient for the left-handed user to handle the operation lever.If the water purification device is attached to the faucet so that the operation lever is on the left side of the faucet, There is a problem that it is inconvenient for the handed user to handle the operation lever.

In view of the above problems, an object of the present invention is to
When a water purifier is attached to a faucet, the protrusion of the water purifier on the user side is reduced, and a water purifier that can be used by both left-handed users and right-handed users is provided.

[0006]

The above-mentioned object is to provide a lower case, an upper case covering the upper surface of the lower case, a water purification cartridge mounted on the upper case, and an upper surface of the lower case. A water flow switching mechanism and a communication mechanism for communicating raw water from the faucet with the water flow switching mechanism are provided. The water flow switching mechanism is a tubular valve case and a switching mechanism that is movably fitted in the valve case. A valve body and an operating body for operating the switching valve body, wherein the communication mechanism extends on the upper surface of the lower case and in a direction intersecting the moving direction of the switching valve body. In the water purifying device, the communication mechanism has a connection case connected to the faucet and an intermediate connection case for connecting the connection case to the valve case, and the connection case includes the connection case. Before to connect to the faucet And forming a fixed nut mounting cylindrical portion which projects into the upper case upper surface, by the operation body disposed to be operated by the front of the upper case and the lower case is accomplished.

[0007]

When the water purification device is connected to the faucet so that the operating body of the water flow switching mechanism is located in front of the user, the water purification cartridge and the water flow switching mechanism are located in the lateral direction of the faucet. The water purifier does not project greatly from the faucet to the user. This large protrusion and the fact that the operating body of the water flow switching mechanism is located in front of the user work together to enable the operating body of the water flow switching mechanism to be used by both left-handed users and right-handed users. It can be operated without difficulty.

When the user is right-handed, when the water purifying device is connected to the faucet so that the water purifying cartridge is located on the front side of the faucet, the operation body of the water flow switching mechanism is located below the water purifying cartridge on the right side. Since it is positioned in the direction, the operating body of the water flow switching mechanism is easy to grasp and easy to see for a right-handed user. Moreover, in this state, the fixed nut mounting cylindrical portion of the faucet and the connection case is hidden by the water purification cartridge portion, and the water purification apparatus looks small from the front of the user.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
It will be explained based on.

1 to 19, the water purifier 1
Is an upper case 2 made of synthetic resin, a lower case 3 made of synthetic resin, a cover 4 made of synthetic resin, a water purification cartridge 5 placed on the upper case 2 and covered by the cover 4. A water flow switching mechanism 6 arranged between the upper case 2 and the lower case 3, a communication mechanism 8 for communicating raw water from a water source such as a faucet 7 with the water flow switching mechanism 6 part, an upper case 2 and a lower case 3 And a purified water amount display device 9 for notifying the purification flow rate.

The water flow switching mechanism 6 has a cylindrical valve case 10 made of synthetic resin, a switching valve body 11 made of synthetic resin fitted in the valve case 10, and a cylindrical shape for operating the switching valve body 11. And the operating body 12 made of synthetic resin.

The communication mechanism 8 is a fixed nut 1 made of synthetic resin.
3, a synthetic resin connection case 16 that is watertightly attached to the faucet 7 by a synthetic resin holder 14 and a rubber connection packing 15, and the cross-sectional shape is reversed to connect the connection case 16 to the valve case 10. It has an L-shaped synthetic resin intermediate connection case 17.

The purified water display device 9 includes an indicator case 18 made of a transparent synthetic resin, an indicator 19 made of synthetic resin provided in the indicator case 18, and a direction against the resistance force of the flow rate received by the indicator 19. A push spring 20 made of stainless steel for urging the indicator 19 is provided. 1 and 19, for convenience of explanation, the connecting portion between the upper case 2 and the activated carbon unit 21 is shown moved by 90 °.

The water purification cartridge 5 comprises an activated carbon unit 21 and a hollow fiber membrane unit 22. The activated carbon unit 21 includes a storage case 23 made of a cylindrical synthetic resin, and granular activated carbon 24 made of coconut husk stored in the storage case 23. An upper net 25 and a lower net 25a made of synthetic resin are provided in the storage case 23 so as not to spill the activated carbon 24. A fitting portion 23a for holding the hollow fiber membrane unit 22 in a watertight manner is formed on the upper portion of the storage case 23 in a detachable manner using a packing 26. A raw water inlet 23b is formed on the lower surface of the storage case 23. A space 23 c is formed between the lower net 25 a in the storage case 23 and the inner wall of the lower surface of the storage case 23 for allowing the raw water to flow uniformly throughout the activated carbon 24.

The hollow fiber membrane unit 22 comprises a storage case 27 made of a cylindrical synthetic resin, and a large number of hollow fiber membranes 28 stored in the storage case 27. Both ends 28a of the hollow fiber membrane 28 are fixed inside the opening end of the storage case 27 using resin. Intermediate part 2 of the hollow fiber membrane 28
The 8b side is stored in the storage case 27 in a state of being bent in a U shape and not being restrained. The lattice-shaped body 27a integrally formed on the bottom surface of the storage case 27 has a protective function for preventing the hollow fiber membrane 28 from being scratched with a finger or the like. The hollow fiber membrane 28 has a structure in which a large number of holes of several micrometers are provided on the outer circumference of a pipe. The hollow fiber membrane unit 22 is provided with tapered portions 27b at both ends of the storage case 27 so that the hollow fiber membrane unit 22 can be inverted and attached to the activated carbon unit 21. The ring-shaped packings 26, 26a that are in pressure contact with the fitting portion 23a formed on the 23 are provided.

In the upper case 2, a cylindrical portion 2a for attaching the cover 4, a raw water outlet 2b communicating with the raw water outlet 10a of the valve case 10, and a purified water purified by the water purification cartridge 5 flow out. Clean water outlet 2c
And the fixed nut mounting cylindrical portion 1 formed in the connection case 16.
The opening 2d into which the 6a is fitted and the operating body 1 of the water flow switching mechanism 6
A semicircular mounting portion 2e into which the 2 is rotatably fitted and an elastic claw 2f that is locked to the lower case 3 are formed. A threaded portion 2g and a ring-shaped packing 29 for watertightly and detachably mounting the cover 4 are provided on an outer peripheral wall of the cylindrical portion 2a. A fitting groove 2h for fitting the ring-shaped convex 12a provided on the operating body 12 is formed on the inner wall of the mounting portion 2e.

The lower case 3 includes four bosses 3a for fixing the valve case 10 with screws 30, a raw water straight outlet 3b, and a ring-shaped raw water shower located on the entire outer circumference of the raw water straight outlet 3b. Outlet 3c, purified water outlet 3d located outside this shower outlet 3c, boss 3e for screwing screw 31 for fixing lower case 3 to upper case 2, and operation of water flow switching mechanism 6 A semi-circular mounting portion 3f into which the body 12 is rotatably fitted and a locking piece 3g with which the elastic claw 2f of the upper case 2 is locked are formed. A fitting groove 3h for fitting the ring-shaped convex portion 12a provided with the operating body 12 is formed on the inner wall of the mounting portion 3f.

The valve case 10 of the water flow switching mechanism 6 has a raw water outlet 10a formed at one end and a storage cylinder 10b for storing the switching valve body 11 at the other end. A raw water inlet 10c, four attachment pieces 10d for fixing the valve case 10 to the boss 3a of the lower case 3, and an indicator case 18 of the purified water amount display device 9 are provided on the outer peripheral side surface of the valve case 10 with a packing 32. And a mounting cylindrical portion 10e which is mounted in a watertight manner by using. On the bottom surface of the outer periphery of the valve case 10, the raw water outlet 3b of the lower case 3
First raw water outlet 10f for guiding raw water to the second case, second raw water outlet 10g for guiding raw water to the raw water shower outlet 3c of the lower case 3, first raw water outlet 10f and second raw water outlet 10g. A cylindrical partition wall 10h for partitioning and
A cylindrical partition wall 10i for preventing the raw water guided to the raw water shower outlet 3c of the lower case 3 from flowing into the lower case 3 is formed.

The switching valve body 11 has a connecting shaft 1 which fits in two long grooves 10j provided in the housing cylinder portion 10b of the valve case 10.
1a and a housing portion 11b for housing the moderating balls 33, 33a and the moderating spring 34 are formed. A first O-ring 35, a second O-ring 36, a third O-ring 37 and a fourth O-ring 38 are press-fitted on the outer circumference of the switching valve body 11. These O-rings 35, 36, 37, 38 are
Made of rubber. A hollow portion 11c is formed in the switching valve body 11. The valve case 10 is provided on the outer wall of the hollow portion 11c.
First opening 11d communicating with the raw water inlet 10c of No. 1 and the second opening 1 communicating with the second raw water outlet 10g of the valve case 10.
1e and the raw water from the first opening 11d to the first raw water outlet 1
Ring-shaped recess 11f for leading to 0f and second opening 1
A ring-shaped recess 11g for guiding the raw water from 1e to the second raw water outlet 10g is provided.

The open end of the hollow portion 11c of the switching valve body 11 is closed by adhering a cap 39 made of synthetic resin. The accommodating tubular portion 10b of the valve case 10 is provided with a moderating small hole 10k into which the moderating balls 33, 33a provided in the accommodating portion 11b of the switching valve body 11 are fitted. When the operation shaft 12 is rotated between the upper case 2 and the lower case 3 by fitting the connecting shaft 11a of the switching valve body 11 into the spiral groove 12b formed on the inner wall surface of the cylinder of the operation body 12, The switching valve body 11 reciprocates in the valve case 10. On the outer peripheral wall of the operating body 12, a ring-shaped step portion 12c for mounting the display ring 40 made of synthetic resin.
Are formed. On the surface of the display ring 40, clean water,
It is displayed as raw water straight or raw water shower.

The lower case 3 has a partition wall 1 for the valve case 10.
0h and a cylindrical partition wall 3i provided in a portion located on the entire outer circumference of the raw water straight outlet 3b and the partition wall 10i of the valve case 10 and facing the raw water shower outlet 3c. Cylindrical partition wall 3g provided on a portion located on the outer periphery and a cylindrical partition wall 3k provided on a portion facing the mounting cylindrical portion 10e of the valve case 10 and located on the entire outer periphery of the purified water outlet 3d. Are integrally formed, and a packing 41 for maintaining watertightness between the partition walls 3i, 3g, 3k and the partition walls 10h, 10i of the valve case 10 and the mounting cylindrical portion 10e is attached to the lower case 3. A partition wall 3L for mounting is integrally formed.

The packing 41 is made of rubber and has one raw water communication port 41a facing the raw water straight outlet 3b of the lower case 3 and the raw water shower outlet 3c of the lower case 3.
Has a plurality of raw water communication ports 41b facing each other and one purified water communication port 41c facing the purified water outlet 3d of the lower case 3. In the partition wall 3i of the lower case 3, two raw water rectifying filters 42 are provided. In the partition wall 3k of the lower case 3, one water purification rectifying filter 43 is provided. The raw water rectifying filter 42 and the purified water rectifying filter 43 are made of synthetic resin and have the same size and shape. A raw water filter 44 is provided in the mounting cylindrical portion 16 a of the connection case 16. The raw water filter 44 is held between the plurality of ribs 16b and the connection packing 15.

The raw water inlet 23b provided in the storage case 23 of the activated carbon unit 21 has a packing 4 provided on the outer periphery thereof.
5, it is detachably and watertightly held at the raw water outlet 2b of the upper case 2. Indicator case 18
The upper end of the above is watertightly attached to the purified water outlet 2c of the upper case 2 using a packing 46 provided on the outer periphery of the upper end. One end of the intermediate connection case 17 is watertightly attached to the raw water inlet 10c of the valve case 10 by using a packing 47 provided on the outer circumference of the one end. The other end of the intermediate connection case 17 is watertightly attached to the connection case 16 using a packing 48 provided on the outer circumference of the other end. The raw water outlet 10a of the valve case 10 is watertightly attached to the raw water outlet 2b of the upper case 2 by using a packing 49 provided on the outer periphery thereof. Packing 32, 46 provided on the outer periphery of the indicator case 18 and the intermediate connection case 1
The packing 47 provided on the outer circumference of 7 and the packing 49 provided on the outer circumference of the raw water outlet 2b of the upper case 2 have the same size and shape, and the indicator case 18 and the purified water outlet 2c of the upper case 2, The fitting cylindrical portion 10e of the indicator case 18 and the valve case 10, the raw water inlet port 10c of the valve case 10, the intermediate connection case 17, the raw water outlet port 10a of the valve case 10 and the raw water outlet port 2b of the upper case 2 have different fitting dimensions. It is set.

A transparent window body 50 made of a transparent synthetic resin is watertightly held in the central opening 4a of the upper surface of the cover 4 through a packing 51. On the upper inner wall of the cover 4,
A plurality of ribs 4b for securing a water passage are integrally formed.

The communication mechanism 8 is formed with a communication passage B for guiding the raw water from the faucet 7 to the valve case 10 of the water flow switching mechanism 6. The outlet of the communication passage B, that is, the valve case 1
The connecting portion side to 0 is set to be higher than the inlet portion of the communication passage B, that is, the connecting portion side to the faucet 7. Therefore, the communication passage B is formed from the connection case 16 and an intermediate L-shaped intermediate connection case 17, and the center of the valve case 10 connection portion of the intermediate connection case 17 is located at the inner bottom of the lower case 3 of the connection case 16. It is configured such that the position is higher by the H dimension than the center of the portion arranged along the line.

In the present embodiment, the dimension from the outlet end of the faucet 7 to the lower surface of the lower case 3 when the water purifier 1 is attached to the faucet 7 is set to be within about 19 mm in this embodiment. Below the lower surface of the lower case 3, the lower end of the raw water straight outlet 3b, the lower end of the raw water shower outlet 3c, and the lower end of the purified water outlet 3d do not significantly project. The raw water straight outlet 3b and the raw water shower outlet so that when the water purifier 1 is placed on a mounting table or the like with the lower surface of the lower case 3 facing down, the raw water straight outlet 3b and the raw water shower outlet The lower ends of 3c and the purified water outlet 3d are treated.

As shown in FIGS. 1 and 2, the water flow switching mechanism 6 is disposed below the cover 4 and the water purification cartridge 5. The communication passage B of the communication mechanism 8 includes the water flow switching mechanism 6
Are arranged in alternate directions with respect to the longitudinal direction of the valve case 10, that is, the moving direction of the switching valve body 11. In this embodiment, the communication passage B is formed in the moving direction of the switching valve body 11.
As shown in FIGS. 1 and 2, the water flow switching mechanism 6 and the communication mechanism 8 are arranged between the upper case 2 and the lower case 3 so that they are orthogonal to each other.

The raw water straight outlet 3b, the raw water shower outlet 3c and the purified water outlet 3d are arranged below the cover 4 which covers the water purification cartridge 5, as shown in FIG. The water purifying apparatus of this embodiment includes the mounting cylindrical portion 10e provided on the valve case 10 and the partition walls 10h and 10i,
Partition walls 3i, 3g, 3k of lower case 3 and packing 41
Thus, the raw water is not mixed with the purified water, and the purified water is not mixed with the raw water.

The connection case 16 has two support arms 16c fitted to the bosses 3e for fixing the lower case 3 and the upper case 2, and a large diameter portion 16 fitted to the opening 3N of the lower case 3.
d and are formed. On the inner bottom surface of the lower case 3, a step portion 3P that functions to position the connection case 16 and the intermediate connection case 17 is formed. By fitting the large-diameter portion 16d of the connection case 16 into the opening 3N of the lower case 3, as shown in FIG. 1, there is no step in the connecting portion between the connection case 16 and the intermediate connection case 17 B
Can be formed.

In the above structure, when the operating body 12 is rotated and set to the "raw water shower", the switching valve body 11
14 becomes the state shown in FIG. 14, and the raw water from the faucet 9 flows out in a shower state from the raw water shower outlet 3c.
That is, the raw water from the faucet 7 is connected case 16-intermediate connection case 17-raw water inlet 10c of the valve case 10-first opening 11d of the switching valve body 11-hollow part 1 of the switching valve body 11.
1c-Second opening 11e of switching valve body 11-Second raw water outlet 10g of valve case 10-Raw water communication port 41 of packing 41
It passes through b and flows out from the raw water shower outlet 3c of the lower case 3. At this time, the packing 35 of the switching valve body 11 prevents the raw water from flowing to the water purification cartridge 5 side, and the packings 36 and 37 of the switching valve body 11 side the raw water straight outlet 3b side of the lower case 3. The raw water is prevented from flowing into the valve case 10, and the packing 38 of the switching valve body 11 prevents the raw water flowing into the second opening 11e of the switching valve body 11 from flowing into the valve case 10. The raw water communication port 41b serves to divide the raw water so that the water pressure is uniformly applied to the raw water shower outlet 3c.

Next, when the operating body 12 is rotated and set to "raw water straight", the switching valve body 11 moves in the valve case 10 to the state shown in FIG. 15, and the raw water from the faucet 7 is discharged. , Straight out from the raw water straight outlet 3b. That is, the raw water from the faucet 7 is connected case 16-intermediate connection case 17-raw water inlet 10c of the valve case 10-first opening 11d of the switching valve body 11-switching valve body 1
1 hollow part 11c-first raw water outlet 10 of valve case 10
It passes through the raw water communication port 41a of the f-packing 41 and flows out from the raw water straight outlet 3b of the lower case 3. On this occasion,
The packing 35 of the switching valve body 11 prevents the raw water from flowing to the water purification cartridge 5 side, and
The packings 36 and 37 of the switching valve body 11 prevent raw water from flowing to the raw water shower outlet 3c side, and
The packing 38 of the switching valve body 11 prevents the raw water flowing into the hollow portion 11c of the switching valve body 11 from flowing into the valve case 10.

Next, the operating body 12 is rotated to "clean water".
16, the switching valve body 11 moves in the valve case 10 to be in the state shown in FIG. 16, the raw water from the faucet 7 is purified by the water purification cartridge 5, and the purified water outlet 3d of the lower case 3 is discharged. Drained from. That is, faucet 7
Raw water from the connection case 16-intermediate connection case 17-
The raw water inlet 10c of the valve case 10-the raw water outlet 10a of the valve case 10 flows into the raw water inlet 23b provided on the bottom surface of the storage case 23 of the activated carbon unit 21.

The raw water flowing into the raw water inlet 23b passes from the space 23c into the carbonaceous carbon 24 and passes through the hollow fiber membrane unit 2
The hollow fiber membranes 28a provided on the bottom surface of the second storage case 27 pass through the hollow fiber membranes 28 and flow into the cover 4 from the upper surface of the storage case 27 of the hollow fiber membrane unit 22. The raw water flowing into the raw water inlet 23b is purified water by removing residual chlorine and odor by the activated carbon 24 and removing fine dust such as iron rust by the hollow fiber membrane 28. The purified water passes through the space A between the cover 4 and the water purification cartridge 5, passes through the purified water outlet 2c of the upper case 2 and the inside of the indicator case 18, and flows out from the purified water outlet 3d of the lower case 3. At this time, between the cover 4 and the upper case 2,
Since it is kept watertight by the packing 29, the purified water does not flow out to the outer periphery of the upper case 2. In addition, the indicator case 18, the upper case 2, and the valve body case 10
Since the packing 32, 46 is water-tightly held between the mounting cylindrical portion 10e and the mounting cylindrical portion 10e, purified water does not flow out between the upper case 2 and the valve body case 10. further,
The space between the valve body case 10, the mounting cylindrical portion 10e and the partition wall 3k of the lower case 3 is watertightly held by the packing 41, so that purified water does not flow out into the lower case 3. The packing 41 holds the partition wall 3g of the lower case 3 and the partition wall 10i of the valve case 10 and the partition wall 3i of the lower case 3 and the partition wall 10h of the valve case 10 in a watertight manner. Therefore, during the “raw water shower” and the “raw water straight”, the raw water does not flow into the lower case 2.

When the operating body 12 is rotated, the connecting shaft 11a fitted in the spiral groove 12b tries to rotate together with the operating body 12, but the rotation is caused by the long groove of the valve case 10.
The switching valve body 11 is blocked by the valve case 10 by the valve case 10j.
Since it can be moved in the axial direction of the "raw water shower",
In either state of "raw water straight" and "purified water", the moderation balls 33, 33 provided in the switching valve body 11 in any of the plurality of small holes 10k provided in the valve case 10.
Since "a" is fitted, the operating body 12 is rotated, and when the "raw water shower", "raw water straight", and "purified water" are set, a feeling of moderation is surely obtained, which is convenient.

The indicator 19 housed in the indicator case 18 receives a resistance force according to the amount of purified water, and moves to a position where the resistance force and the pressing force of the pressing spring 20 are balanced. Therefore, when the purified water amount is large, the indicator 19 moves downward, and when the purified water amount is small, the indicator 19 moves upward, so that the indicator case 18 that is transparent from the opening 3M of the lower case 3 is used.
By checking the position of the indicator 19 via the, the clogging state of the hollow fiber membrane 28 can be known.

When the indicator 19 confirms that the amount of purified water has become extremely small, the hollow fiber membrane unit 22 is reversely mounted and the hollow fiber membrane 28 is backwashed, as shown in FIG. That is, when raw water is allowed to flow into the raw water inlet port 23b of the activated carbon unit 21 in a state where the packing 26 side of the storage case 27 is kept watertight in the storage case 23 of the activated carbon unit 21, the raw water is discharged into the activated carbon unit. After passing through 21, the hollow fiber membrane unit 22 enters into the hollow fiber membrane unit 22 to remove fine dust adhering to a large number of holes of the hollow fiber membrane 28, and together with the fine dust, the hollow fiber membrane unit 2
2 grid 27a to cover 4 and water purification cartridge 5
Flowing out into the passage A between the lower case 3 and the purified water outlet 3
The water is discharged from d to the outside of the water purification device 1. If this operation is continued for several minutes, the degree of clogging of the hollow fiber membrane 28
It can be recovered to the extent that a predetermined amount of purified water can be obtained.

When the backwashing operation is completed, the hollow fiber membrane unit 22 is turned over and installed in the activated carbon unit 21 as shown in FIG. 1 so as to purify raw water. , Can be used again. In addition, whether the hollow fiber membrane unit 22 is being used for water purification or backwashing, the hollow fiber membrane unit 22 is removed from the transparent window body 50 of the cover 4.
It can be determined by checking the wearing state of. The determination is that "clean water" is displayed on the outer surface of one end 28a of the hollow fiber membrane, and "backwashing" is performed on the outer surface of the lattice 27a provided outside the other end 28b of the hollow fiber membrane. If the display is made and these displays are made visible through the transparent window body 50, there is no error.

When the water purifier 1 is attached to the faucet 7, when it is desired that both right-handed users and left-handed users can operate the operating body 12 easily, FIG.
7, the fixing nut mounting cylindrical portion 16a of the connection case 16 may be fixed to the faucet 7 using the fixing nut 13 so that the operating body 12 is located in front of the user. In this state, the portion of the cover 4 is located in the lateral direction of the faucet 7 and does not significantly protrude to the front side of the user. Therefore, when washing dishes or the like under the faucet 7, a water purifying device is provided. 1 does not get in the way.

For a right-handed user, the fixing nut mounting cylindrical portion 16a of the connection case 16 is fixed to the fixing nut 13 so that the operating body 12 is located on the right side as shown in FIG.
It can also be used by fixing to the faucet 7 using. In this state, the cover 4 and the like cause the faucet 7 and the fixed nut mounting cylindrical portion 16a side of the connection case 16 to be hidden, and only the cover 4 side can be seen from the front of the user. Looks smaller, which improves usability.

[0040]

According to the present invention, the water purifier can be attached to the faucet so as to be suitable for both left-handed and right-handed users, and the water purifier can be attached to the right-handed person without making the water purifier greatly protrude to the user side. When the water purifier is attached to the faucet so that it is suitable only for the faucet, the faucet part cannot be seen from the front of the user, and the water purifier appears to be small. A water purification device that can be selected according to the situation and whose usability can be significantly improved was obtained.

[Brief description of drawings]

FIG. 1 is an overall sectional view showing an embodiment of the present invention in a purified water outflow state.

FIG. 2 is an overall transverse sectional view showing an embodiment of the present invention.

FIG. 3 is an exploded perspective view of a lower case side showing an embodiment of the present invention.

FIG. 4 is an exploded perspective view of an upper case side showing an embodiment of the present invention.

FIG. 5 is a perspective view of an upper case showing an embodiment of the present invention.

FIG. 6 is a perspective view of a lower case showing an embodiment of the present invention.

FIG. 7 is an exploded perspective view of a switching valve body portion showing an embodiment of the present invention.

FIG. 8 is an exploded perspective view of a communication mechanism portion showing an embodiment of the present invention.

FIG. 9 is an exploded perspective view of a purified water amount display device portion showing an embodiment of the present invention.

FIG. 10 is a bottom view of the valve case showing the embodiment of the present invention.

FIG. 11 is a sectional perspective view of an operating body showing an embodiment of the present invention.

FIG. 12 is an inner development view of the operating body showing one embodiment of the present invention.

FIG. 13 is a perspective view of a raw water straight outlet, a raw water shower outlet, and a purified water outlet packing according to an embodiment of the present invention.

FIG. 14 is an explanatory view of the operation of the switching valve body in the raw water shower state showing the embodiment of the present invention.

FIG. 15 is an operation explanatory diagram of a switching valve body portion in a raw water straight state showing an embodiment of the present invention.

FIG. 16 is an operation explanatory view of the switching valve body portion in a purified water state showing one embodiment of the present invention.

FIG. 17 is a view showing a state in which the operating body according to the embodiment of the present invention is attached to the faucet of the water purifying device which is arranged on the front surface.

FIG. 18 is a view showing the state of attachment of the water purifier to the faucet in which the operating body is arranged on the side surface, showing the embodiment of the present invention.

FIG. 19 is an overall cross-sectional view of a hollow fiber membrane unit according to an embodiment of the present invention in a backwash state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Water purification apparatus, 2 ... Upper case, 3 ... Lower case, 5 ... Water purification cartridge, 6 ... Water flow switching mechanism, 7 ... Faucet, 8 ... Communication mechanism, 10 ... Valve case, 11 ... Switching valve body, 12 ... Operation Body, 16 ... Connection case, 16a ... Fixed nut mounting cylindrical portion, 17 ... Intermediate connection case.

Claims (7)

[Claims] 1. A lower case, an upper case covering the upper surface of the lower case, a water purification cartridge mounted on the upper case, a water flow switching mechanism arranged on the upper surface of the lower case, and the water flow switching. The mechanism includes a communication mechanism for communicating raw water from a faucet, the water flow switching mechanism includes a tubular valve case, a switching valve body movably fitted in the valve case, and the switching valve body. In the water purifying apparatus, the communication mechanism is an upper surface of the lower case, and extends in a direction intersecting a moving direction of the switching valve body. The mechanism has a connection case connected to the faucet, and an intermediate connection case for connecting the connection case to the valve case, and the connection case includes the upper part for connecting the connection case to the faucet. Projected to the top of the case A water purifier that forms a fixed nut mounting cylindrical portion and arranges the operating body so as to be operable in front of the upper case and the lower case. 2. The water purifier according to claim 1, wherein the communication mechanism extends in a direction orthogonal to the moving direction of the switching valve body. 3. The fixing nut mounting cylindrical portion is located on the right side of the operating body when viewed from the front of the upper and lower cases,
The water purifier according to claim 1, wherein the communication mechanism is disposed on the lower case. 4. The water flow switching mechanism is disposed below the water purification cartridge, and the communication is made such that the fixed nut mounting cylindrical portion is located on the right side of the water flow switching mechanism when viewed from the front of the upper and lower cases. The water purifier according to claim 1, wherein a mechanism is arranged on the lower case. 5. A raw water straight outlet for straightly discharging raw water from the faucet and a shower of the raw water from the faucet are provided in a portion of the lower surface of the lower case located below the water purification cartridge. The raw water shower outlet for discharging the raw water from the faucet and the purified water outlet for discharging purified water obtained by treating the raw water from the faucet with the water purification cartridge are arranged in parallel. Water purification device. 6. The water purifier according to claim 4, wherein a cylindrical cover covering the water purification cartridge is detachably attached to the upper case. 7. A purified water amount display device is provided in the upper and lower cases, and an opening for viewing an indicator of the purified water amount display device is located on the left side of the water flow switching mechanism when viewed from the front of the upper and lower cases. It is provided between the upper case and the lower case in the.
The water purification device according to 5 or 6.