WO2012114858A1

WO2012114858A1 - Water purifier

Info

Publication number: WO2012114858A1
Application number: PCT/JP2012/052665
Authority: WO
Inventors: 紀博熊; 盛司馬場; 長谷川　実; 哲也門馬; 池水　麦平
Original assignee: シャープ株式会社
Priority date: 2011-02-25
Filing date: 2012-02-07
Publication date: 2012-08-30
Also published as: JP2012176352A

Abstract

Provided is a water purifier which is configured to simultaneously operate opening and closing of a plurality of valves which switch between a route for producing purified water and a route for washing a filter medium, is relatively inexpensive, and can be miniaturized. A water purifier (100) is provided with: a filter tank (4); a flow channel (130) for bringing a liquid to at least the filter tank (4); valve systems (60, 70, and 80) which open or close the flow of the liquid in the flow channel (130) so as to switch between a route for filtering the liquid in the filter tank (4) of the flow channel (130) and another route for washing the inside of the filter tank (4); and a switching lever (6) which is operated by an user to actuate the valve systems (60, 70, and 80). The valve systems (60, 70, and 80) are actuated by the action of the switching lever (6).

Description

Water purifier

This invention relates to a water purifier having a function of washing a filter medium.

As described in Japanese Patent Application Laid-Open No. 8-84899 (Patent Document 1), a liquid purification device such as a water purifier is known which includes a plurality of filter tanks. Each of the plurality of filter tanks accommodates a hollow fiber membrane type filter. The dirty raw water flowing into the filter tank is purified by passing through these filters.

In the water purifier according to Japanese Patent Application Laid-Open No. 8-84899 (Patent Document 1), when the filter is washed, the purified water purified by passing through the filter of at least one filter tank is used as the filter of another filter tank. The filter of another filter tank is washed by making it pass.

In addition, the water purifier according to Japanese Patent Laid-Open No. 8-84899 (Patent Document 1) includes a plurality of electromagnetic valves that switch between a path through which one filter tank passes and a path through which another filter tank passes. That is, the opening and closing of these solenoid valves is controlled electronically or electromagnetically by a control device or the like.

The path through which one filter tank passes is, for example, when purified water is generated in a liquid purification apparatus. Moreover, the path | route which lets another filter tank pass is a thing when back-washing the filter of one filter tank, for example in a liquid purification apparatus.

Japanese Patent Laid-Open No. 8-84899

A solenoid valve that is electronically or electromagnetically controlled by a control device or the like is more expensive than a valve that is switched manually, and a control device that controls the solenoid valve is also relatively expensive. In addition, since a large number of solenoid valves are used, it is difficult to reduce the size of the liquid purification device due to the volume occupied by the electrical components that connect the solenoid valves and the control device.

Therefore, among water purifiers configured to be able to simultaneously operate opening and closing of a plurality of valves that switch between a path for generating purified water and a path for cleaning filter media, the water purifier is relatively inexpensive and downsized. What was possible was desired.

Accordingly, an object of the present invention is configured to be able to simultaneously operate opening and closing of a plurality of valves for switching between a path for generating purified water and a path for cleaning filter media, and is relatively inexpensive and small in size. It is to provide a water purifier that can be used.

This invention is a water purifier provided with a filter tank, a flow path, a plurality of valve mechanisms, and a switching unit. The flow path causes at least the liquid to flow through the filter tank. The plurality of valve mechanisms are opened and closed so as to switch between a path through which liquid is filtered in the filter tank of the flow path and another path for cleaning the inside of the filter tank. The switching unit is operated by a user of the water purifier and operates a plurality of valve mechanisms. Each valve mechanism is interlocked with the operation of the switching unit.

According to this invention, the plurality of valve mechanisms open and close the flow of the liquid in the flow path, whereby the path through which the liquid is filtered in the filter tank of the flow path and the other path for cleaning the inside of the filter tank And are switched. Each valve mechanism is interlocked with the operation of the switching unit. The switching unit is operated by the user. That is, opening and closing of each valve mechanism is operated by the user. Thus, in the water purifier according to this invention, many electromagnetic valves are not used. Furthermore, a control device for controlling the electromagnetic valve is unnecessary. Therefore, the cost concerning the water purifier according to this invention can be held down. In addition, the water purifier can be downsized. Therefore, according to this invention, it is comprised so that opening and closing of the several valve which switches the path | route at the time of producing | generating purified water and the path | route at the time of wash | cleaning a filter medium can be operated simultaneously, and it is comparatively cheap and small. Can be provided. Moreover, when the said water purifier is a thing which does not use electricity, the water purifier which does not depend on a power supply specification is realizable.

The water purifier according to the present invention preferably further includes another filter tank. The other filter tank is preferably one that filters liquid flowing through another path when the filter tank is washed.

According to this configuration, the filter tank can be washed using the liquid filtered in the other filter tank. Therefore, it is possible to clean the inside of the filter tank more cleanly.

In the water purifier according to the present invention, it is preferable that the plurality of valve mechanisms are collected in one place.

According to this configuration, a plurality of valve mechanisms are collected in one place, that is, arranged so as to be collected in one place, so that the volume occupied by the plurality of valve mechanisms can be reduced. Further, the connection between the switching unit and each valve mechanism is simplified. Therefore, the water purifier can be further downsized.

In the water purifier according to the present invention, the switching unit preferably has an operation unit and a rotating shaft. The operation unit is operated by a user of the water purifier. The rotating shaft is preferably one that rotates together with the operation unit. Each valve mechanism preferably has an inlet that allows liquid to flow from the flow path to each valve mechanism, and an outlet that allows liquid to flow from each valve mechanism to the flow path. Each valve mechanism includes a cam fixed to the rotation shaft, a cam guide surrounding a part of the rotation shaft and a part of the cam, and a closing portion fixed to the cam guide and opening and closing the inlet or the outlet. It is preferable to have. Furthermore, in the water purifier according to the present invention, the closed portion can open and close the inlet or the outlet by moving the cam guide and the closed portion in conjunction with the rotation of the rotating shaft and the cam by the operation of the operating portion. preferable.

According to this configuration, the rotating shaft and the cam are fixed to each other. The cam guide and the closing part are fixed to each other. When the operation unit is operated by the user, the rotation shaft and the cam rotate together with the operation unit. Further, when the cam guide and the closing portion move in conjunction with the rotation of the rotating shaft and the cam, the closing portion opens and closes the inlet or the outlet. Thus, in the water purifier according to the present invention, the cam is operated by the operation of the operation unit by the user without using a large number of solenoid valves. Further, each valve mechanism is operated by the operation of the cam. Therefore, the cost concerning the water purifier according to the present invention can be suppressed, and the water purifier can be downsized.

In the water purifier according to the present invention, it is preferable that at least one of the plurality of valve mechanisms has one inlet and a plurality of outlets.

According to this configuration, a plurality of outlets are arranged for one inlet in at least one valve mechanism. In this case, the volume of the entire valve mechanism can be reduced as compared with the case where the water purifier has the number of outlet valve mechanisms. Therefore, the water purifier can be further downsized.

As described above, according to the present invention, it is configured to be able to simultaneously operate opening and closing of a plurality of valves for switching between a path for generating purified water and a path for cleaning filter media, and is relatively inexpensive. It is possible to provide a water purifier that can be reduced in size.

It is a systematic diagram which shows the flow of water when the water purifier which concerns on 1st Embodiment of this invention purifies raw | natural water. It is a systematic diagram which shows the flow of water when the water purifier which concerns on 1st Embodiment of this invention wash | cleans the filter medium of one filter tank. It is the schematic of the branch tap of the water purifier which concerns on this invention. It is sectional drawing of the several valve mechanism of the water purifier which concerns on this invention. FIG. 5 is an enlarged sectional view taken along line VV in FIG. 4. It is the front view which showed roughly the switching lever of the water purifier which concerns on this invention. It is the schematic of the valve mechanism of the water purifier which concerns on this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the state of operation | movement of each valve mechanism when the water purifier which concerns on 1st Embodiment of this invention produces | generates purified water, Comprising: (A) is a figure which shows a part of one valve mechanism. (B) is a diagram showing another part of one valve mechanism, (C) is a diagram showing a part of another valve mechanism, and (D) is a part of another valve mechanism. FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the state of operation | movement of each valve mechanism when the water purifier which concerns on 1st Embodiment of this invention wash | cleans the filter medium of a filter tank, Comprising: (A) is a part of one valve mechanism. (B) is a diagram showing another part of one valve mechanism, (C) is a diagram showing a part of another valve mechanism, and (D) is another valve mechanism. It is a figure which shows a part of. It is a systematic diagram which shows the flow of water when the water purifier which concerns on 2nd Embodiment of this invention purifies raw | natural water. It is a systematic diagram which shows the flow of water when the water purifier which concerns on 3rd Embodiment of this invention purifies raw | natural water. It is a systematic diagram which shows the flow of water when the water purifier which concerns on 4th Embodiment of this invention purifies raw | natural water.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the water purifier 100 includes

flow paths

131, 132, 133, 134, 135, 136, 137, 138, and 139 as the flow paths 130. The water purifier 100 includes an activated carbon filter tank 3, a filter tank 4 as one filter tank, and a filter tank 5 as another filter tank. Each flow path 131,132,133,134,135,136,137,138,139 is formed, for example by tubular members, such as a hose.

The activated carbon filter tank 3 removes chlorine, odor, trihalomethane, etc. contained in the raw water. For the activated carbon filter tank 3, for example, a porous substance such as activated carbon is used. On the other hand, the filter medium 43 accommodated in the filter tank 4 and the filter medium 53 accommodated in the filter tank 5 remove fine particles such as bacteria or viruses. For the filter medium 43 and the filter medium 53, a microfiltration membrane (MF membrane), an ultrafiltration membrane (UF membrane), a nanofiltration membrane (NF membrane), or a reverse osmosis membrane (RO membrane) is used depending on the object to be removed. ing.

The flow path 130 circulates water as a liquid. Of the channels 130, the channel 131 connects the branch faucet 2 and the activated carbon filter tank 3. One end of the channel 131 is connected to the branch faucet 2, and the other end is connected to the inflow nozzle 31 of the activated carbon filter tank 3. One end of the flow path 133 is connected to the outflow nozzle 32 of the activated carbon filter tank 3, and the other end is connected to the valve mechanism 60. In addition, one end of the flow path 134 and one end of the flow path 135 are connected to the valve mechanism 60.

The other end of the flow path 135 is connected to the nozzle 41 of the filter tank 4. A check valve 91 is disposed in the flow path 135. On the other hand, the other end of the flow path 134 is connected to the nozzle 51 of the filter tank 5.

Further, one end of a flow path 136 is connected to the nozzle 41 of the filter tank 4. The other end of the flow path 136 and one end of the flow path 137 are connected to the valve mechanism 70. The water flowing between the filter tank 4 and the filter tank 5 flows through the flow path 138. One end of the flow path 138 is connected to the nozzle 52 of the filter tank 5. The other end of the flow path 138 is connected to the nozzle 42. A check valve 92 is disposed in the flow path 138.

Further, one end of a flow path 139 is connected to the nozzle 42 of the filter tank 4. The other end of the flow path 139 is connected to the valve mechanism 80. In addition, one end of a flow path 132 is connected to the valve mechanism 80. The other end of the channel 132 is connected to the branch faucet 2.

When the user of the water purifier 100 opens the water tap 1, tap water as raw water is supplied to the water purifier 100 through the branch tap 2. However, the raw water is not limited to tap water, and may be well water or river water.

The water flowing into the branch tap 2 by opening the tap 1 is discharged from the branch tap 2 as tap water or through the channel 131 by operating a lever (not shown) of the branch tap 2. Or flow into the water purifier 100. When purified water is generated in the water purifier 100, water flows from the branch faucet 2 through the flow path 131 and into the activated carbon filter tank 3 through the inflow nozzle 31. The water flowing through the activated carbon filter tank 3 flows out to the flow path 133 through the outflow nozzle 32. The flow direction of the water flowing through the flow path 133 is switched by the valve mechanism 60 and starts flowing toward the flow path 135. The water flowing through the flow path 135 flows into the filter tank 4 through the nozzle 41. When purified water is generated in the water purifier 100, the valve mechanism 70 closes between the flow path 136 and the flow path 137, and the valve mechanism 80 opens between the flow path 139 and the flow path 132. Yes.

The water flowing through the filter tank 4 is filtered by the filter medium 43 to produce purified water. The purified water is supplied to the outside of the water purifier 100 through the flow path 132 via the flow path 139 and the valve mechanism 80.

When purified water is generated in the water purifier 100, the valve mechanism 60 opens between the flow path 133 and the flow path 135 and closes between the flow path 133 and the flow path 134. Moreover, when purified water is produced | generated in the water purifier 100, the valve mechanism 70 obstruct | occludes between the flow path 136 and the flow path 137 which connect the inside of the filter tank 4 and the exterior of the water purifier 100. FIG. Furthermore, in this case, the valve mechanism 80 opens between the flow path 139 and the flow path 132 that connect the inside of the filter tank 4 and the outside of the water purifier 100.

On the other hand, when the filter tank 4 is washed in the water purifier 100, the valve mechanism 70 opens between the flow path 136 and the flow path 137, and the valve mechanism 80 is between the flow path 139 and the flow path 132. Occlude. As shown in FIG. 2, when the filter tank 4 is washed in the water purifier 100, the flow of water flowing through the flow path 133 is switched by the valve mechanism 60 and flows toward the flow path 134. The water flowing through the flow path 134 flows into the filter tank 5 through the nozzle 51. The water flowing through the filter tank 5 is filtered by the filter medium 53 to generate purified water. The water filtered by the filter medium 53 flows into the filter tank 4 through the flow path 138 and the nozzle 42.

When the filter medium 43 of the filter tank 4 is washed, the water flows through the inside of the filter tank 4 in the opposite direction to when purified water is generated in the filter tank 4. The water used for the reverse cleaning of the filter medium 43 flows out from the nozzle 41 to the flow path 136 and is further discharged to the outside of the water purifier 100 through the flow path 137.

When the filter medium 43 of the filter tank 4 is washed in the water purifier 100, the valve mechanism 60 opens between the flow path 133 and the flow path 134 and closes between the flow path 133 and the flow path 135. Further, when the filter medium 43 is washed in the water purifier 100, the valve mechanism 70 opens between the flow path 136 and the flow path 137 connecting the inside of the filter tank 4 and the outside of the water purifier 100. Furthermore, in this case, the valve mechanism 80 blocks between the flow path 139 and the flow path 132 that connect the inside of the filter tank 4 and the outside of the water purifier 100. In this way, the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 include a path through which water is filtered in the filter tank 4 in the flow path 130 and another path for cleaning the filter medium 43 in the filter tank 4. Switch between and.

As shown in FIG. 3, the branch faucet 2 flows in the direction in which tap water flows from the branch faucet 2 toward the water purifier 100 and from the branch faucet 2 toward the outside of the branch faucet 2. It can be switched to the flowing direction. Further, when tap water flows from the branch faucet 2 toward the water purifier 100, the purified water flows from the water purifier 100 toward the branch faucet 2. The purified water flowing from the water purifier 100 toward the branch faucet 2 flows from the branch faucet 2 toward the outside of the branch faucet 2, and the purified water is supplied to the user.

As shown in FIG. 4, in the water purifier 100, the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 are collected in one place inside the case 110. A part of the flow path 130 excluding at least a part of the flow path 131 and a part of the flow path 132, and the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 are accommodated in the case 110. Case 110 forms a part of the outline of water purifier 100. The water purifier 100 includes a switching lever 6 as an operation unit. The switching lever 6 is operated by the user of the water purifier 100. The switching lever 6 is arranged outside the case 110 so that the user can operate the switching lever 6.

The switching lever 6 is connected to the rotating shaft 10. The rotating shaft 10 rotates together with the switching lever 6 around the rotating axis C. The switching lever 6 is an example of an operation unit. Moreover, in the water purifier 100, the rotating shaft 10 and the switching lever 6 are examples of a switching unit. When the switching lever 6 is operated by the user, the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 are operated. The rotating shaft 10 passes through the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80. That is, the length of the rotating shaft 10 is longer than the width of the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 (the size in the left-right direction in FIG. 4).

Hereinafter, the configuration of the

valve mechanisms

60, 70, and 80 that are linked to the operation of the switching lever 6 will be described. FIG. 5 shows a cross section of the valve mechanism 70. The valve mechanism 70 includes an inlet 171 through which water flows into the valve mechanism 70 from the flow path 136 and an outlet 172 through which water flows out from the valve mechanism 70 into the flow path 137. A part of the flow path 136 is formed inside the inflow nozzle 75 of the valve mechanism 70. A part of the flow path 137 is formed inside the outflow nozzle 76 of the valve mechanism 70.

The valve mechanism 70 includes a cam 77, a cam guide 71, and a leg 78. The cam 77 is fixed to the outer surface 11 of the rotating shaft 10. A protruding portion 72 that protrudes outward from the cam 77 is formed in a part of the cam 77. The cam guide 71 surrounds a part of the rotating shaft 10 and a part of the cam 77 from four directions in the left and right direction and the up and down direction in FIG. The protrusion 72 formed on the cam 77 is surrounded by the cam guide 71. The leg 78 is fixed to the cam guide 71 and extends from the cam guide 71 toward the outflow port 172. An annular member 74 is attached to the root of the cam guide 71 and the leg portion 78. The annular member 74 is made of an elastic material such as rubber. In the valve mechanism 70 of the water purifier 100, at least the leg portion 78 and the annular member 74 constitute a closed portion. The cam guide 71 is urged from the upper side to the lower side in FIG. 5 by a spring 73 so that the closing portion closes the outflow port 172.

As shown in FIG. 4, the valve mechanism 80 has an inlet 181 through which water flows into the valve mechanism 80 from the flow path 139 and an outlet 182 through which water flows out from the valve mechanism 80 into the flow path 132. . A part of the flow path 139 is formed inside the inflow nozzle 85 of the valve mechanism 80. A part of the flow path 132 is formed inside the outflow nozzle 86 of the valve mechanism 80. The valve mechanism 80 includes a cam 87, a cam guide 81, and a leg portion 88. An annular member 84 made of an elastic material is attached to the root of the cam guide 81 and the leg portion 88. A protruding portion 82 that protrudes outward from the cam 87 is formed on a part of the cam 87. The protrusion 82 is surrounded by the cam guide 81. The cam guide 81 is urged downward from above in FIG. 4 by a spring 83 so that the annular member 84 of the leg portion 88 closes the outflow port 182.

The valve mechanism 60 includes an inflow port 161 that allows water to flow into the valve mechanism 60 from the flow path 133, an outflow port 162 that allows water to flow out from the valve mechanism 60 to the flow path 134, and outflow of water from the valve mechanism 60 to the flow path 135. And an outflow port 163. A part of the flow path 133 is formed inside the inflow nozzle 65 of the valve mechanism 60. A part of the flow path 134 is formed inside the outflow nozzle 66 of the valve mechanism 60. A part of the flow path 135 is formed inside the outflow nozzle 69 of the valve mechanism 60.

The valve mechanism 60 includes a cam 67, a cam guide 611, and a leg portion 681. An annular member 64 made of an elastic material is attached to the root of the cam guide 611 and the leg portion 681. The cam guide 611 is urged downward from above in FIG. 4 by a spring 631 so that the annular member 64 of the leg portion 681 closes the outlet 162. A protrusion 621 that protrudes outward from the cam 67 is formed on a part of the cam 67. The protruding portion 621 is surrounded by the cam guide 611. Further, on the left side in FIG. 4 with respect to the protruding portion 621, a protruding portion 622 protruding outward from the cam 67 is formed on the other part of the cam 67. The valve mechanism 60 further includes a cam guide 612 and a leg 682. The protrusion 622 is surrounded by the cam guide 612. An annular member 68 made of an elastic material is attached to the root of the cam guide 612 and the leg portion 682. The cam guide 612 is biased downward from above in FIG. 4 by a spring 632 so that the annular member 68 of the leg 682 closes the outlet 163.

6 is a schematic view when the switching lever 6 is viewed from the left side of FIG. In the front view of the switching lever 6 shown in FIG. 6, the position where the user rotates the switching lever 6 in the clockwise direction (the position indicated by the two-dot chain line) is a position where the water purifier 100 can generate purified water (hereinafter referred to as “clean water”). Then it is called water purification position). On the other hand, the position where the user rotates the switching lever 6 counterclockwise (the position indicated by the solid line) is a position where the water purifier 100 can wash the filter medium 43 of the filter tank 4 (see FIG. 1) (hereinafter referred to as “the water purifier”). It is called a washing position).

When the switching lever 6 is rotated between the water purification position and the washing position, the rotation shaft 10 (see FIG. 5) rotates about the rotation axis C at an interval of about 90 degrees. FIG. 7 is a view schematically showing the valve mechanism 80. The valve mechanism 80 shown in FIG. 7 is in a state where the annular member 84 of the leg portion 88 closes the outlet 182. At this time, the switching lever 6 (see FIG. 6) points to the cleaning position. On the other hand, when the switching lever 6 points to the water purification position, the valve mechanism 80 is in a state where the annular member 84 of the leg portion 88 opens the outlet 182 as described later.

FIG. 8 is a diagram schematically showing an operation state of the

valve mechanisms

60, 70, 80 when the water purifier 100 generates purified water. 8A is a diagram showing a part of the valve mechanism 60, FIG. 8B is a diagram showing another part of the valve mechanism 60, and FIG. 8C is a part of the valve mechanism 70. FIG. 8D is a diagram showing a part of the valve mechanism 80. As above-mentioned, when the water purifier 100 produces | generates purified water, the switching lever 6 (refer FIG. 6) has pointed out the purified water position. As shown in FIG. 8A, the valve mechanism 60 is in a state where the annular member 64 of the leg portion 681 closes the outlet 162. Further, as shown in FIG. 8B, the valve mechanism 60 is in a state where the annular member 68 of the leg 682 opens the outlet 163. As described above, when the switching lever 6 points to the water purification position, the valve mechanism 60 closes between the flow path 133 (see FIG. 1) and the flow path 134 and between the flow path 133 and the flow path 135. The space is open.

As shown in FIG. 8C, the valve mechanism 70 is in a state in which the annular member 74 of the leg 78 closes the outlet 172. 8D, the valve mechanism 80 is in a state where the annular member 84 of the leg portion 88 opens the outlet 182. Thus, when the switching lever 6 is pointing to the water purification position, the valve mechanism 70 closes the flow of water in the flow path 137 and the valve mechanism 80 opens the flow of water in the flow path 132.

FIG. 9 is a diagram schematically showing the state of operation of each valve mechanism when the water purifier 100 cleans the filter medium 43 of the filter tank 4. 9A is a view showing a part of the valve mechanism 60, FIG. 9B is a view showing another part of the valve mechanism 60, and FIG. 9C is a part of the valve mechanism 70. FIG. 9D is a view showing a part of the valve mechanism 80. As described above, when the water purifier 100 cleans the filter medium 43, the switching lever 6 (see FIG. 6) indicates the cleaning position. As shown in FIG. 9A, the valve mechanism 60 is in a state in which the annular member 64 of the leg portion 681 opens the outlet 162.

As shown in FIG. 6, when the switching lever 6 is rotated counterclockwise from the water purification position to the washing position by the user, the rotating shaft 10 and the protrusion 621 shown in FIG. Rotate approximately 90 degrees. Thereby, the protrusion part 621 is arrange | positioned in the position which contacts the inner surface ceiling of the cam guide 611, as shown to FIG. 9 (A). While the switching lever 6 rotates counterclockwise from the water purification position to the washing position, the protrusion 621 moves the cam guide 611 upward while contacting the inner surface ceiling of the cam guide 611. As described above, the cam guide 611 as a follower with respect to the cam 67 (see FIG. 4) moves upward, so that the leg portion 681 fixed to the cam guide 611 and the annular member 64 of the leg portion 681 move upward. Moving. Thereby, the outflow port 162 is opened and the flow of water in the flow path 134 is opened.

Further, while the switching lever 6 is rotated counterclockwise from the water purification position to the washing position, the protrusion 622 that has been in contact with the inner surface ceiling of the cam guide 612 as shown in FIG. ), Contact with the inner ceiling of the cam guide 612 is eliminated. For this reason, the cam guide 612 moves downward from above. Thus, when the cam guide 612 as the follower moves downward, the leg portion 682 fixed to the cam guide 612 and the annular member 68 of the leg portion 682 move downward. Thereby, the outflow port 163 is closed and the flow of the water of the flow path 135 is obstruct | occluded.

Similarly, while the switching lever 6 rotates counterclockwise from the water purification position to the cleaning position, the rotating shaft 10 and the protrusion 72 shown in FIG. 8C rotate approximately 90 degrees inside the cam guide 71. 9 (C), the protrusion 72 is disposed at a position where it contacts the inner ceiling of the cam guide 71. At this time, the cam guide 71, the leg 78, and the annular member 74 move upward. Thereby, the outflow port 172 is opened and the flow of water in the flow path 137 is opened.

Similarly, while the switching lever 6 rotates counterclockwise from the water purification position to the washing position, the protrusion 82 that has been in contact with the inner ceiling of the cam guide 81 as shown in FIG. As shown in (D), contact with the inner surface ceiling of the cam guide 81 is eliminated. During this time, the cam guide 81, the leg 88, and the annular member 84 move downward. Thereby, the outflow port 182 is closed and the flow of the water of the flow path 132 is obstruct | occluded.

As described above, when the switching lever 6 points to the cleaning position, the valve mechanism 60 opens between the flow path 133 and the flow path 134 and the flow path 133 and the flow path 135 as shown in FIG. Is blocked. When the switching lever 6 points to the cleaning position, the valve mechanism 70 opens the flow path 137 and the valve mechanism 80 closes the flow path 132.

On the other hand, while the switching lever 6 rotates in the clockwise direction in FIG. 6 from the washing position to the water purification position, the rotating shaft 10 and the

protrusions

621, 622, 72, 82 are respectively located inside the cam guides 611, 612, 71, 81. Rotate approximately 90 degrees. During this time, for example, in the valve mechanism 80, the protrusion 82 contacts the inner surface ceiling of the cam guide 81 as shown in FIG. During this time, the protrusion 82 lifts the cam guide 81, so that the cam guide 81, the leg 88, and the annular member 84 move upward. Thereby, the outflow port 182 is opened and the flow of water in the flow path 132 is opened. In this way, when the switching lever 6 is operated, for example, the cam guide 81, the leg portion 88, and the annular member 84 are moved in conjunction with the rotation of the rotary shaft 10 and the cam 87 (see FIG. 4). 88 and the annular member 84 open and close the outlet 182.

As described above, the water purifier 100 includes the filter tank 4, the filter tank 5, the flow path 130, the

valve mechanisms

60, 70, 80, the switching lever 6, and the rotating shaft 10. The filter tank 5 filters water when the filter tank 4 is washed. The flow path 130 circulates water between at least the filter tank 4 and the filter tank 5. The valve mechanism 60 is configured to switch between the flow path 133 and the flow path 134 so as to switch between a path through which water is filtered in the filter tank 4 and another path for cleaning the filter medium 43 in the filter tank 4. And between the flow path 133 and the flow path 135 are opened and closed.

The valve mechanism 70 is configured to switch the flow path 136 and the flow path 137 so as to switch between the path of the flow path 130 where water is filtered in the filter tank 4 and the other path for cleaning the filter medium 43 of the filter tank 4. Open and close between. The valve mechanism 80 includes a flow path 139 and a flow path 132 so as to switch a path of the flow path 130 where water is filtered in the filter tank 4 and another path for cleaning the filter medium 43 of the filter tank 4. Open and close between. The switching lever 6 is operated by the user to operate the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 via the rotating shaft 10. The valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 are interlocked with the operation of the switching lever 6 and the rotating shaft 10.

According to the water purifier 100, the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 of the flow path 130 are between the flow path 133 and the flow path 134 and between the flow path 133 and the flow path 135, respectively. By opening and closing between the flow path 136 and the flow path 137 and between the flow path 139 and the flow path 132, the path through which water is filtered in the filter tank 4 and the filter medium 43 of the filter tank 4 are The other path for cleaning is switched. Further, the

valve mechanisms

60, 70, 80 are linked to the operation of the switching lever 6 and the rotating shaft 10 operated by the user. That is, the opening / closing of the

valve mechanisms

60, 70, 80 is operated by the user. Thus, in the water purifier 100, many electromagnetic valves are not used. Furthermore, a control device for controlling the electromagnetic valve is unnecessary. Therefore, the cost concerning the water purifier 100 can be suppressed. Moreover, size reduction of the water purifier 100 is possible.

Therefore, according to this embodiment, it is comprised so that opening and closing of the several valve which switches the path | route at the time of producing | generating purified water and the path | route at the time of wash | cleaning a filter medium can be operated simultaneously, and it is comparatively cheap, and The water purifier 100 which can be reduced in size can be provided. Moreover, when the water purifier 100 does not use electricity, the water purifier which is not influenced by the power supply specification can be realized.

Moreover, according to the water purifier 100, the filter tank 4 can be washed using the water filtered by the filter medium 53 of the filter tank 5. Therefore, it is possible to clean the inside of the filter tank 4 more cleanly.

In the water purifier according to the present invention, the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 are collected in one place.

According to this configuration, the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 are arranged so as to be gathered at one place, thereby reducing the volume occupied by the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80. It is possible to make it. Further, the connection between the switching lever 6 and the rotary shaft 10 and the

valve mechanisms

60, 70, 80 is simplified. Therefore, the water purifier 100 can be further downsized.

In the water purifier 100, at least the switching lever 6 and the rotating shaft 10 constitute a switching unit. The switching lever 6 is operated by the user of the water purifier 100. The rotating shaft 10 rotates with the switching lever 6. The valve mechanism 60 includes an inflow port 161 that allows water to flow into the valve mechanism 60 from the flow path 133, an outflow port 162 that allows water to flow out from the valve mechanism 60 to the flow path 134, and outflow of water from the valve mechanism 60 to the flow path 135. And an outflow port 163. The valve mechanism 70 includes an inlet 171 through which water flows into the valve mechanism 70 from the flow path 136 and an outlet 172 through which water flows out from the valve mechanism 70 into the flow path 137. The valve mechanism 80 has an inlet 181 that allows water to flow into the valve mechanism 80 from the flow path 139 and an outlet 182 that allows water to flow from the valve mechanism 80 to the flow path 132.

For example, the valve mechanism 70 includes a cam 77 fixed to the rotary shaft 10, a cam guide 71 surrounding a part of the rotary shaft 10 and a part of the cam 77, and fixed to the cam guide 71 and opens and closes the outlet 172. A leg portion 78 and an annular member 74 attached to the leg portion 78 are included. Further, for example, in the valve mechanism 70, the cam member 71 and the leg 78 move in conjunction with the rotation of the rotary shaft 10 and the cam 77 by the operation of the switching lever 6, so that the annular member 74 of the leg 78 becomes the outlet 172. Open and close.

According to the water purifier 100, the rotating shaft 10 and the

cams

67, 77, 87 are fixed to each other. The

leg portions

681, 682, 78, 88 are fixed to the cam guides 611, 612, 71, 81, respectively. When the switching lever 6 is operated by the user, the rotating shaft 10 and the

cams

67, 77, 87 rotate together with the switching lever 6. Further, the cam guides 611, 612, 71, 81 and the

leg portions

681, 682, 78, 88 move upward from the lower side in conjunction with the rotation of the rotary shaft 10 and the

cams

67, 77, 87, so

Members

64, 68, 74, and 84 open and close the

outlets

162, 163, 172, and 182 respectively. Thus, in the water purifier 100, the

cams

67, 77, and 87 are operated by the operation of the switching lever 6 by the user without using a large number of solenoid valves. The

valve mechanisms

60, 70, 80 are operated by the operation of the

cams

67, 77, 87. Therefore, the cost concerning the water purifier 100 can be suppressed, and the water purifier 100 can be downsized.

In the water purifier 100, the valve mechanism 60 has one inflow port 161 and two

outflow ports

162 and 163.

According to this configuration, in the valve mechanism 60, two

outlets

162 and 163 are arranged for one inlet 161. In this case, compared to the case where the water purifier 100 has the number of outlet valve mechanisms, the volume of the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 can be reduced. Therefore, the water purifier 100 can be further downsized.

In the water purifier 100, the angle at which the switching lever 6 and the rotating shaft 10 rotate is not limited to approximately 90 degrees. The angle at which the switching lever 6 and the rotating shaft 10 rotate may be appropriately determined according to the shape of the cam guides 611, 612, 71, 81 and the shape of the

cams

67, 77, 87. Moreover, as shown in FIG. 4, the cross-sectional area of the rotating shaft 10 is not limited to being constant.

In the water purifier 100, the

valve mechanisms

60, 70, and 80 close the

outlets

162, 163, 172, and 182, respectively, but the valve mechanism 70 and the valve mechanism 80 are respectively the inlet 171 and the outlet 171. The inlet 181 may be closed. For example, in the valve mechanism 70, the direction in which the spring 73 is urged and the position of the leg 78 with respect to the cam guide 71 are adjusted, so that the annular member 74 attached to the leg 78 closes the inflow port 171. It is possible.

Furthermore, in the water purifier 100, the shape of the switching lever 6 is not particularly limited. The switching lever 6 may be anything that can rotate at least between the water purification position and the washing position and can rotate the rotating shaft 10 at a predetermined rotation angle. Further, the direction in which the switching lever 6 rotates from the water purification position to the washing position is not limited to counterclockwise rotation, but may be clockwise rotation. As the switching lever 6 rotates clockwise from the water purification position to the washing position, the flow path is switched so that the path for filtering water in the filter tank 4 and the path for washing the filter medium 43 of the filter tank 4 are switched. 130 and the

valve mechanisms

60, 70, 80 may be connected.

In the water purifier 100, the

valve mechanisms

60, 70, and 80 are not limited to those that operate when the rotation of the switching lever 6 is transmitted to the rotary shaft 10. The valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 may be in other forms as long as they are linked to the operation of the switching lever 6 operated by the user of the water purifier 100.

In addition, the water purifier 100 does not need to include the filter tank 5. For example, based on FIG. 2, the washing | cleaning of the filter medium 43 of the filter tank 4 in case the water purifier 100 is not provided with the filter tank 5 is demonstrated. When the water purifier 100 does not include the filter tank 5 and the filter medium 43 of the filter tank 4 is washed, the flow of the water flowing through the flow path 133 is switched by the valve mechanism 60 so that the flow direction is changed. It may flow toward the path 134 or may flow toward the flow path 135. When the water purifier 100 does not include the filter tank 5 and the filter medium 43 of the filter tank 4 is washed, the water flowing through the flow path 133 passes through the other flow paths (not shown) and passes through the nozzle 41. It may flow into the filter tank 4 through. Another flow path (not shown) connects the valve mechanism 60 and the nozzle 41.

In the case where the water purifier 100 does not include the filter tank 5, the water flowing through the flow path 134 when the filter medium 43 is washed does not pass through the flow path 138, that is, directly from the flow path 134 through the nozzle 42. It may flow into the filter tank 4 through. At this time, water flows through the filter tank 4 in the reverse direction.

On the other hand, when the water purifier 100 does not include the filter tank 5, the water flowing through the flow path 135 when the filter medium 43 is washed flows in the forward direction in the filter tank 4. Furthermore, when water passes through another flow path (not shown) when the filter medium 43 is washed, a detergent effective for washing the filter medium 43 may be mixed into the water. The filter medium 43 is cleaned more cleanly by a detergent mixed in water flowing through another flow path (not shown). The wash water that has flowed into the filter tank 4 through the nozzle 41 through another flow path (not shown) flows through the filter tank 4 in the forward direction, and then passes through the flow path to which the valve mechanism 70 is connected. And discharged to the outside of the water purifier 100. The flow path to which the valve mechanism 70 is connected, that is, the flow path 136 may be connected to the nozzle 42.

Further, when the water purifier 100 does not include the filter tank 5 and the filter tank 4 is back-washed, a detergent may be mixed in the water flowing through the flow path 134. When the water purifier 100 includes the filter tank 5 and the filter medium 53, a detergent effective for cleaning the filter medium 43 may be mixed in the water flowing through the flow path 130.

As mentioned above, when the water purifier 100 is not provided with the filter tank 5, the water purifier 100 is the filter tank 4, the flow path 130, the

valve mechanisms

60, 70, 80, the switching lever 6, and the rotating shaft. 10. The channel 130 has at least a channel 131, a channel 133, a channel 134, and a channel 135. The flow path 130 allows water to flow through at least the filter tank 4. The

valve mechanisms

60, 70, and 80 are opened and closed so as to switch between a path through which water is filtered in the filter tank 4 in the flow path 130 and another path for cleaning the inside of the filter tank 4. The switching lever 6 is operated by the user to operate the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 via the rotating shaft 10. The valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 are interlocked with the operation of the switching lever 6 and the rotating shaft 10. According to this structure, in the water purifier 100, the cost which concerns on the water purifier 100 can be suppressed, and size reduction of the water purifier 100 is possible.

(Second Embodiment)
FIG. 10 shows a water purifier 200 according to the second embodiment. The difference between the water purifier 200 and the water purifier 100 of the first embodiment is that the filter medium 43 of the filter tank 4 is washed in order as described later.

As shown in FIG. 10, in the water purifier 200, one end of the flow path 136 in the flow path 230 is connected to the nozzle 44 of the filter tank 4. One end of the flow path 138 is connected to the nozzle 52 of the filter tank 5, and the other end of the flow path 138 is connected to the nozzle 41.

In the water purifier 200, the valve mechanism 60, the valve mechanism 70, and the valve mechanism 80 are flowed when purified water is generated and when the filter tank 4 is washed, as in the water purifier 100 according to the first embodiment. The path through which water is filtered in the filter tank 4 in the path 230 and the other path for cleaning the filter medium 43 in the filter tank 4 are switched.

When the filter medium 43 of the filter tank 4 is washed in the water purifier 200, the water flows through the filter tank 4 in the same direction as when the purified water is generated in the filter tank 4. The water used for the forward cleaning of the filter medium 43 flows out from the nozzle 44 to the flow path 136 and is further discharged to the outside of the water purifier 200 through the flow path 137.

As with the water purifier 100 according to the first embodiment, when the water purifier 200 generates purified water, the switching lever 6 (see FIG. 6) points to the purified water position. On the other hand, when the water purifier 200 cleans the filter medium 43, the switching lever 6 points to the cleaning position.

When the switching lever 6 points to the water purification position, the valve mechanism 60 closes between the flow path 133 and the flow path 134 and opens between the flow path 133 and the flow path 135. When the switching lever 6 points to the water purification position, the valve mechanism 70 closes the flow path 136 and the flow path 137, and the valve mechanism 80 opens the flow path 139 and the flow path 132. To do. On the other hand, when the switching lever 6 points to the cleaning position, the valve mechanism 60 opens the flow path 133 and the flow path 134 and closes the flow path 133 and the flow path 135. Further, when the switching lever 6 points to the cleaning position, the valve mechanism 70 opens between the flow path 136 and the flow path 137, and the valve mechanism 80 closes between the flow path 139 and the flow path 132. To do.

When the switching lever 6 rotates between the washing position and the water purification position, the inside of the

valve mechanisms

60, 70, 80 of the water purifier 100 according to the first embodiment and the inside of the

valve mechanisms

60, 70, 80, respectively. Operates similarly.

The other structure of the water purifier 200 is the same as that of the water purifier 100 according to the first embodiment. The description about the other structure of the water purifier 200 is abbreviate | omitted.

(Third embodiment)
FIG. 11 shows a water purifier 300 according to the third embodiment. The water purifier 300 is different from the water purifier 100 of the first embodiment in that

valve mechanisms

370 and 380 that are three-way valves are used instead of the

valve mechanisms

70 and 80 that are two-way valves (see FIG. 1). Yes.

In the water purifier 300, one end of the flow path 134 of the flow paths 330 and one end of the flow path 335 are connected to the valve mechanism 60. The other end of the flow path 335 is connected to the valve mechanism 370. A check valve 91 is disposed in the flow path 335.

Further, one end of the flow path 336 and one end of the flow path 137 are connected to the valve mechanism 370. On the other hand, the water flowing between the filter tank 4 and the filter tank 5 flows through the flow path 338 and the flow path 339. One end of the flow path 338 is connected to the nozzle 52 of the filter tank 5. The other end of the flow path 338 is connected to the valve mechanism 380. A check valve 92 is disposed in the flow path 338. One end of a flow path 339 is connected to the nozzle 42 of the filter tank 4. The other end of the flow path 339 is connected to the valve mechanism 380. One end of the flow path 132 is connected to the valve mechanism 380. The other end of the channel 132 is connected to the branch faucet 2.

When purified water is generated in the water purifier 300, the opening (not shown) of the valve mechanism 370 when water flows into the valve mechanism 370 from the flow path 335 functions as an inflow port. Further, when purified water is generated in the water purifier 300, an opening (not shown) of the valve mechanism 370 when water flows out from the valve mechanism 370 to the flow path 336 functions as an outlet. On the other hand, when the filter medium 43 is washed in the water purifier 300, an opening (not shown) of the valve mechanism 370 when water flows into the valve mechanism 370 from the flow path 336 functions as an inflow port. Further, when the filter medium 43 is washed in the water purifier 300, the opening (not shown) of the valve mechanism 370 when water flows out from the valve mechanism 370 to the flow path 137 functions as an outlet. In the water purifier 300, the outlet of the valve mechanism 370 when water flows out from the valve mechanism 370 to the flow path 336 when purified water is generated is from the flow path 336 to the valve mechanism when the filter medium 43 is washed. It also serves as an inlet of the valve mechanism 370 when water flows into the 370. Thus, in the water purifier 300, the valve mechanism 370 has one inflow port and two outflow ports.

Further, when purified water is generated in the water purifier 300, the opening (not shown) of the valve mechanism 380 when water flows into the valve mechanism 380 from the flow path 339 functions as an inflow port. Further, when purified water is generated in the water purifier 300, an opening (not shown) of the valve mechanism 380 when water flows out from the valve mechanism 380 to the flow path 132 functions as an outlet. On the other hand, when the filter medium 43 is washed in the water purifier 300, the opening (not shown) of the valve mechanism 380 when water flows into the valve mechanism 380 from the flow path 338 functions as an inflow port. Further, when the filter medium 43 is washed in the water purifier 300, an opening (not shown) of the valve mechanism 380 when water flows out from the valve mechanism 380 to the flow path 339 functions as an outlet. In the water purifier 300, when purified water is generated, the inlet of the valve mechanism 380 when water flows into the valve mechanism 380 from the flow path 339 is the flow path from the valve mechanism 380 when the filter medium 43 is washed. 339 also serves as an outlet of the valve mechanism 380 when water flows out. Thus, in the water purifier 300, the valve mechanism 380 has one inflow port and two outflow ports.

When purified water is generated in the water purifier 300, the valve mechanism 60 opens between the flow path 133 and the flow path 335 and closes between the flow path 133 and the flow path 134. Further, the valve mechanism 370 opens the channel 335 and the channel 336 and closes the channel 335 or the channel 336 and the channel 137. Further, the valve mechanism 380 closes between the flow path 338 and the flow path 339 or the flow path 132 and opens between the flow path 339 and the flow path 132. The water purifier 300 may not include the valve mechanism 60. Even when the water purifier 300 does not include the valve mechanism 60, the valve mechanism 380 blocks between the flow path 338 and the flow path 339 or the flow path 132 when purified water is generated in the water purifier 300. Thus, water does not flow from the flow path 133 to the flow path 134, but water flows from the flow path 133 to the flow path 335.

On the other hand, when the filter tank 4 is washed in the water purifier 300, the valve mechanism 60 opens between the flow path 133 and the flow path 134 and closes between the flow path 133 and the flow path 335. Further, the valve mechanism 370 closes between the flow path 335 and the flow path 336 or the flow path 137 and opens between the flow path 336 and the flow path 137. Further, the valve mechanism 380 opens the channel 338 and the channel 339 and closes the channel 339 or the channel 338 and the channel 132. Even when the water purifier 300 does not include the valve mechanism 60 as described above, when the filter tank 4 is washed in the water purifier 300, the valve mechanism 370 has the flow path 335 and the flow path 336 or the flow path 137. As a result, the water does not flow from the flow path 133 to the flow path 335, and the water flows from the flow path 133 to the flow path 134.

In this way, the valve mechanism 60, the valve mechanism 370, and the valve mechanism 380 are configured such that the water is filtered in the filter tank 4 in the flow path 330 and the other path for cleaning the filter medium 43 in the filter tank 4. Switch between and. The valve mechanism 60 may be omitted.

When the filter medium 43 of the filter tank 4 is washed in the water purifier 300, the inside of the filter tank 4 is opposite to the direction in which the purified water is generated in the filter tank 4 as in the water purifier 100 according to the first embodiment. The water circulates. The water used for the reverse cleaning of the filter medium 43 flows out from the nozzle 41 to the flow path 336 and is further discharged to the outside of the water purifier 300 through the flow path 137.

Although illustration is abbreviate | omitted, in the water purifier 300, the valve mechanism 60, the valve mechanism 370, and the valve mechanism 380 are gathered in one place inside the case (not shown). Similarly to the water purifier 100 according to the first embodiment, a part of the flow path 330 excluding at least a part of the flow path 131 and a part of the flow path 132, the valve mechanism 60, the valve mechanism 370, and the valve mechanism. 380 is accommodated in a case forming a part of the outline of the water purifier 300. The switching lever 6 (see FIG. 4) is arranged outside the case so that the user can operate the switching lever 6. The switching lever 6 is connected to the rotating shaft 10 (see FIG. 4). When the switching lever 6 is operated by the user, the valve mechanism 60, the valve mechanism 370, and the valve mechanism 380 are operated in conjunction with the rotation of the rotary shaft 10.

As with the water purifier 100 according to the first embodiment, when the water purifier 300 generates purified water, the switching lever 6 (see FIG. 6) points to the purified water position. On the other hand, when the water purifier 300 cleans the filter medium 43, the switching lever 6 points to the cleaning position.

Although illustration is omitted, when the switching lever 6 rotates between the washing position and the water purification position, the inside of the

valve mechanism

60, 370, 380 is the inside of the valve mechanism 60 of the water purifier 100 according to the first embodiment. It works like this.

According to the configuration of the water purifier 300, in the valve mechanism 60, the valve mechanism 370, and the valve mechanism 380, two outlets are arranged with respect to one inlet. In this case, as compared with the case where the water purifier 300 has the number of outlet valve mechanisms, the volume of the valve mechanism 60, the valve mechanism 370, and the valve mechanism 380 as a whole can be reduced. Therefore, the water purifier 300 can be further downsized. In addition, it is possible to reduce the number of annular members such as hoses and nozzles that form the flow path 330.

As described above, according to the water purifier 300, the valve mechanism 60, the valve mechanism 370, and the valve mechanism 380 allow the water to be filtered in the filter tank 4 and other filter media 43 in the filter tank 4 to be washed. The route is switched. Further, the

valve mechanisms

60, 370 and 380 are interlocked with the operation of the switching lever 6 and the rotary shaft 10 operated by the user. Thus, in the water purifier 300, many electromagnetic valves are not used. Furthermore, a control device for controlling the electromagnetic valve is unnecessary. Therefore, the cost concerning the water purifier 300 can be suppressed. Further, the water purifier 300 can be downsized.

In addition, as a modification of the water purifier 300 according to the third embodiment, the water purifier 300 may not include the valve mechanism 60 as described above. When the water purifier 300 does not include the valve mechanism 60, the water purifier 300 can be further downsized.

(Fourth embodiment)
FIG. 12 shows a water purifier 400 according to the fourth embodiment. The water purifier 400 is different from the water purifier 100 of the first embodiment in that the water purifier 400 does not include another filter tank used for cleaning the filter medium 43 of the filter tank 4 but includes a tank 410 that stores purified water. ing.

In the water purifier 400, one end of the flow path 433 in the flow path 430 is connected to the outflow nozzle 32 of the activated carbon filter tank 3, and the other end is connected to the nozzle 41 of the filter tank 4. A check valve 491 is disposed in the flow path 433. Further, one end of the flow path 139 and one end of the flow path 436 are connected to the nozzle 42 of the filter tank 4. The other end of the flow path 436 is connected to the valve mechanism 490. One end of a flow path 438 is connected to the valve mechanism 490. The other end of the flow path 438 is connected to the tank 410.

The valve mechanism 70 and the valve mechanism 80 are the same as the water purifier 100 according to the first embodiment in the flow path 430 when purified water is generated in the water purifier 400 and when the filter tank 4 is washed. In order to switch between a path through which water is filtered in the filter tank 4 and another path for cleaning the filter medium 43 of the filter tank 4, the flow path 139 and the flow path 132 are arranged between the flow path 136 and the flow path 137. Open and close between each.

Further, when purified water is generated in the water purifier 400, the valve mechanism 490 opens between the flow path 436 and the flow path 438. A part of the purified water filtered by the filter medium 43 is stored in the tank 410 through the flow path 436 and the flow path 438. Another part of the purified water filtered by the filter medium 43 is supplied to the outside of the water purifier 400 through the flow path 139 and the flow path 132. When the tank 410 is full, the purified water is supplied to the outside of the water purifier 400 through the flow path 139 and the flow path 132 even when the valve mechanism 490 opens the flow path 436 and the flow path 438. Is done.

When the filter tank 4 is back-washed in the water purifier 400, the valve mechanism 490 opens between the flow path 436 and the flow path 438. On the other hand, when the filter tank 4 is sequentially washed in the water purifier 400, the valve mechanism 490 closes between the flow path 436 and the flow path 438. In this way, the valve mechanism 70, the valve mechanism 80, and the valve mechanism 490 include a path through which water is filtered in the filter tank 4 in the flow path 430 and another path for cleaning the filter medium 43 in the filter tank 4. Switch between and.

When purified water is generated in the water purifier 400, an opening (not shown) of the valve mechanism 490 when water flows into the valve mechanism 490 from the flow path 436 functions as an inflow port. Further, when purified water is generated in the water purifier 400, an opening (not shown) of the valve mechanism 490 when water flows out from the valve mechanism 490 to the flow path 438 functions as an outlet. On the other hand, when the filter medium 43 is back-washed in the water purifier 400, the opening (not shown) of the valve mechanism 490 when water flows into the valve mechanism 490 from the flow path 438 functions as an inflow port. When the filter medium 43 is back-washed in the water purifier 400, an opening (not shown) of the valve mechanism 490 when water flows out from the valve mechanism 490 to the flow path 436 functions as an outlet.

When the filter tank 4 is washed in the water purifier 400, the purified water in the tank 410 can be used even if the supply of raw water is stopped. The purified water in the tank 410 is sent to the filter tank 4 by the operation of the pump 420. When the filter tank 4 is back-washed in the water purifier 400, the purified water in the tank 410 flows into the filter tank 4 through the flow path 438 and the flow path 436 through the nozzle 42. The water used for the reverse cleaning of the filter medium 43 flows out from the nozzle 41 to the flow path 136 and is further discharged to the outside of the water purifier 400 through the flow path 137.

When the filter tank 4 is sequentially washed in the water purifier 400, the purified water in the tank 410 flows into the filter tank 4 through the flow path 434 and the nozzle 41. The water used for the forward cleaning of the filter medium 43 flows out from the nozzle 44 to the flow path 136 through the flow path 435, and is further discharged to the outside of the water purifier 400 through the flow path 137. The flow path 435 connects the nozzle 44 and the flow path 136.

Although illustration is abbreviate | omitted, in the water purifier 400, the valve mechanism 70, the valve mechanism 80, and the valve mechanism 490 are gathered in one place inside the case (not shown). Similar to the water purifier 100 according to the first embodiment, a part of the flow path 430 excluding at least a part of the flow path 131 and a part of the flow path 132, the valve mechanism 70, the valve mechanism 80, and the valve mechanism. 490 is accommodated in a case forming a part of the outline of the water purifier 400. The switching lever 6 (see FIG. 4) is arranged outside the case so that the user can operate the switching lever 6. The switching lever 6 is connected to the rotating shaft 10 (see FIG. 4). When the switching lever 6 is operated by the user, the valve mechanism 70, the valve mechanism 80, and the valve mechanism 490 are operated in conjunction with the rotation of the rotary shaft 10.

As with the water purifier 100 according to the first embodiment, when the water purifier 400 generates purified water, the switching lever 6 (see FIG. 6) points to the purified water position. On the other hand, when the water purifier 400 cleans the filter medium 43, the switching lever 6 points to the cleaning position.

valve mechanisms

70 and 80 is the inside of the

valve mechanisms

70 and 80 of the water purifier 100 according to the first embodiment. Operates in the same way. Further, when the switching lever 6 rotates between the washing position and the water purification position, the inside of the valve mechanism 490 operates like the inside of the valve mechanism 70 or the valve mechanism 80 of the water purifier 100 according to the first embodiment. To do.

As described above, according to the water purifier 400, the valve mechanism 490 opens and closes between the flow path 436 and the flow path 438 in the flow path 430, and the valve mechanism 70 is between the flow path 136 and the flow path 137. The valve mechanism 80 opens and closes the flow path 139 and the flow path 132. As described above, the valve mechanism 490, the valve mechanism 70, and the valve mechanism 80 switch between a path through which water is filtered in the filter tank 4 in the water purifier 400 and another path for cleaning the filter medium 43 in the filter tank 4. . Further, the

valve mechanisms

70, 80, 490 are interlocked with the operation of the switching lever 6 and the rotating shaft 10 operated by the user. Thus, in the water purifier 400, many electromagnetic valves are not used. Furthermore, a control device for controlling the electromagnetic valve is unnecessary. Therefore, the cost concerning the water purifier 400 can be suppressed. Further, the water purifier 400 can be downsized.

In the water purifier 400, a three-way valve may be used instead of the valve mechanism 70, so that the channel 435, the channel 136, and the channel 137 may be connected to the valve mechanism of the three-way valve.

It should be considered that the embodiments disclosed above are illustrative and non-restrictive in every respect. The scope of the present invention is shown not by the above embodiment but by the scope of claims, and includes all modifications and variations within the meaning and scope equivalent to the scope of claims.

According to this invention, it is comprised so that opening and closing of the several valve which switches the path | route at the time of producing | generating purified water and the path | route at the time of wash | cleaning a filter medium can be operated simultaneously, and it is comparatively cheap and size reduction is possible. Since the possible water purifier can be provided, this invention is useful regarding the water purifier which has the function to wash | clean a filter medium.

4: filter tank, 5: filter tank, 6: switching lever, 10: rotating shaft, 60: valve mechanism, 70: valve mechanism, 80: valve mechanism, 100: water purifier, 130: flow path, 161: inflow port, 162, 163: outlet, 611, 612: cam guide, 64, 68: annular member, 67: cam, 681, 682: leg

Claims

A filter tank (4);
A flow path (130) for flowing a liquid through at least the filter tank (4);
A plurality of valve mechanisms that are opened and closed to switch between a path through which liquid is filtered in the filter tank (4) of the flow path (130) and another path for cleaning the inside of the filter tank (4). (60, 70, 80) and
It is operated by a user of the water purifier (100) and includes a switching unit (6, 10) for operating the plurality of valve mechanisms (60, 70, 80).
Each said valve mechanism (60,70,80) is a water purifier (100) linked with the action | operation of the said switching part (6,10).
The purified water according to claim 1, further comprising another filter tank (5) for filtering the liquid flowing in the other path of the flow path (130) when the filter tank (4) is washed. Vessel (100).
The water purifier (100) according to claim 1, wherein the plurality of valve mechanisms (60, 70, 80) are collected in one place.
The switching unit (6, 10) has an operation unit (6) operated by a user of the water purifier (100), and a rotating shaft (10) rotating together with the operation unit (6).
Each of the valve mechanisms (60, 70, 80) includes an inlet (161, 171, 181) through which liquid flows from the flow path (130) into the valve mechanisms (60, 70, 80), and the valves. Outlets (162, 163, 172, 182) for letting liquid flow out from the mechanism (60, 70, 80) to the flow path (130), and cams (67, 77, 87) fixed to the rotary shaft (10). ), A cam guide (611, 612, 71, 81) surrounding a part of the rotating shaft (10) and a part of the cam (67, 77, 87), and the cam guide (611, 612, 71). 81) and closing portions (64, 681, 68, 682, 74, 78, 84, etc.) that open and close the inlet (161, 171, 181) or the outlet (162, 163, 172, 182). 88)
The cam guides (611, 612, 71, 81) and the closing portions (64, 64) are interlocked with the rotation of the rotary shaft (10) and the cams (67, 77, 87) by the operation of the operation unit (6). 681, 68, 682, 74, 78, 84, 88) is moved, so that the blocking portion (64, 681, 68, 682, 74, 78, 84, 88) is moved to the inlet (161, 171, 181). Or the water purifier (100) according to claim 1, wherein the outlet (162, 163, 172, 182) is opened or closed.
The at least one of the plurality of valve mechanisms (60, 70, 80) has one inlet (161) and a plurality of outlets (162, 163). The water purifier (100) as described.