JP6842653B2 - Faucet device - Google Patents

Description

Aspects of the present invention generally relate to faucet devices.

A faucet device equipped with a reformed water generator that generates reformed water such as alkaline ionized water is known. In such a faucet device, a check valve is provided on the upstream side of the reformed water generator in order to prevent the reformed water from flowing back to the clean water side.

However, in a faucet device equipped with a check valve, when a negative pressure is generated on the upstream side of the check valve with dust biting on the check valve, or on the reverse side of the check valve from the downstream side. When pressure is generated, the original function of the check valve may not be fulfilled, and the reformed water generated by the reformed water generator may flow back to the clean water side.

Therefore, it is desired that a faucet device equipped with a reformed water generator can more reliably suppress the backflow of reformed water.

Japanese Unexamined Patent Publication No. 2002-195652

The present invention has been made based on the recognition of such a problem, and an object of the present invention is to provide a faucet device capable of more reliably suppressing the backflow of reformed water.

The first invention is provided with a reformed water generator that generates reformed water from the drinkable water by reforming the drinkable water, and a reformed water generator downstream of the reformed water generator. A first that opens and closes a spout having a spout for spouting reformed water and a flow path provided on the upstream side of the reformed water generator to supply the reformable water to the reformed water generator. A flow path valve and a negative pressure breaking device provided between the reformed water generator and the first flow path valve are provided, and the negative pressure breaking device is upstream of the reformed water generator. A check valve provided on the side, an intake port that opens the downstream side of the check valve to the atmosphere, and when the check valve is closed, the intake port is opened and the check valve is opened. At that time, it has an intake valve that opens and closes the intake port in conjunction with the opening and closing operation of the check valve so as to close the intake port, and the intake port is said to be from the reformed water generator. A second that is provided above the overflow surface of the flow path to the water spout, is provided on the downstream side of the negative pressure breaking device, and opens and closes the flow path between the negative pressure breaking device and the water spout. The two flow path valves are further provided, and the first flow path valve and the second flow path valve are electromagnetic valves interlocking with the reforming water generator, and interlocking with the operation stop of the reforming water generator. It is a faucet device characterized in being closed.

According to this faucet device, a negative pressure breaking device is provided upstream of the reforming water generator, and when the check valve of the negative pressure breaking device is closed, the intake port is opened to the downstream side of the check valve. Is open to the atmosphere. As a result, for example, even if dust bites occur in the check valve, it is possible to prevent the reformed water from flowing back to the clean water side. In addition, by providing an intake port above the overflow surface of the flow path from the reformed water generator to the spout, the water in the flow path downstream of the check valve faces the check valve side when the atmosphere is open. Can be suppressed. Therefore, it is possible to provide a faucet device capable of more reliably suppressing the backflow of reformed water.

According to this faucet device, by closing the second flow path valve, it is possible to further suppress the water remaining in the flow path from being discharged from the spout when the water is opened to the atmosphere.

According to this faucet device, the solenoid valve closes the solenoid valve in conjunction with the reforming water generator, so that the second flow path valve can be opened and closed according to the discharge stop (generation) of the reforming water. Therefore, it is possible to more reliably prevent the water remaining in the flow path from being discharged from the spout when the water is opened to the atmosphere.

The second invention is Oite the first inventions, the reforming water generator and the first Nagareroben is a water faucet device, characterized in that provided in the hidden portion.

According to this faucet device, the reforming water generator and the first flow path valve are concealed, so that the design of the entire faucet device can be improved.

A third invention is Oite the first or second inventions, the vacuum break device is a water faucet device, characterized in that provided in the faucet body and another body having a water discharge portion is there.

According to this faucet device, by providing the negative pressure breaking device separately from the faucet main body, the faucet main body can be miniaturized and the design of the faucet main body can be improved.

According to the aspect of the present invention, there is provided a faucet device capable of more reliably suppressing the backflow of reformed water.

It is a side view which shows the faucet device which concerns on embodiment. 2 (a) and 2 (b) are cross-sectional views showing a negative pressure breaking device. It is a block diagram which shows the faucet device which concerns on embodiment. It is a block diagram which shows the modification of the faucet device which concerns on embodiment. It is a side view which shows the modification of the faucet device which concerns on embodiment. It is a block diagram which shows the modification of the faucet device which concerns on embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, similar components are designated by the same reference numerals and detailed description thereof will be omitted as appropriate.
FIG. 1 is a side view showing a faucet device according to an embodiment.
As shown in FIG. 1, the faucet device 10 includes a reforming water generator 12, a faucet main body 14, a first flow path valve 16, and a negative pressure breaking device 18.

The reformed water generator 12 generates reformed water from the drinkable water by reforming the drinkable water. The reformed water generator 12 is connected to the water supply source WS via the first flow path valve 16 and the negative pressure breaking device 18. The water supply source WS is, for example, a water supply pipe or a hot water supply pipe. For example, tap water (tap water) is supplied to the reformed water generator 12. The reformed water generator 12 generates alkaline ionized water or acidic water as reformed water from tap water, for example, by electrolyzing tap water.

The faucet main body 14 has a water discharge unit 20, a first flow rate adjusting unit 21, and a second flow rate adjusting unit 22. The water spouting unit 20 is provided downstream of the reformed water generator 12 and has a spout 20a for spouting the reformed water. The water discharge unit 20 discharges reformed water and discharges raw water, for example. Raw water is water before reforming, for example, tap water. For example, the water spouting unit 20 discharges alkaline ionized water or acidic water from the spout 20a and tap water from the spout 20a.

The first flow rate adjusting unit 21 is used for switching the discharge / stopping water of raw water. The second flow rate adjusting unit 22 is used for switching the discharge / stopping water of the reforming water. By operating the first flow rate adjusting unit 21, tap water is discharged from the spout 20a, and by operating the second flow rate adjusting unit 22, alkaline ionized water or acidic water is discharged from the spout 20a. Further, the first flow rate adjusting unit 21 switches, for example, the discharge / stop of the raw water and adjusts the flow rate and the temperature of the discharged raw water. The second flow rate adjusting unit 22 switches, for example, the discharge stop of the reforming water and adjusts the flow rate of the reforming water to be discharged.

The first flow rate adjusting unit 21 and the second flow rate adjusting unit 22 may be provided separately from the faucet main body 14, for example. The faucet body 14 may have at least a water discharge portion 20.

The first flow path valve 16 is provided on the upstream side of the reforming water generator 12 and opens and closes the flow path 31 for supplying raw water to the reforming water generator 12.

The negative pressure breaking device 18 is connected to the first flow path valve 16 via the flow path 31, and is connected to the reforming water generator 12 via the flow path 32. That is, the negative pressure breaking device 18 is provided between the reforming water generator 12 and the first flow path valve 16. The negative pressure breaking device 18 is, for example, a vacuum breaker (VB).

The faucet device 10 is used, for example, in the system kitchen 2. The system kitchen 2 has, for example, a counter 3, a sink 4 formed in a concave shape downward from the counter 3, and a cabinet 5 provided below the counter 3 and the sink 4. The cabinet 5 supports the counter 3 and the sink 4, and is formed in a hollow shape so that articles can be stored in the internal space. The cabinet 5 may be a drawer type or a door type.

The faucet main body 14 is provided, for example, on the counter 3 or in the sink 4, and discharges raw water or reformed water from the spout 20a toward the inside of the sink 4. The sink 4 has a drainage port (not shown), and drains the water discharged from the faucet main body 14 to an external drainage pipe or the like through the drainage port.

The reforming water generator 12 and the first flow path valve 16 are provided in, for example, the cabinet 5. In this way, the reformed water generator 12 and the first flow path valve 16 are provided in a portion concealed by a cabinet 5 or the like. In other words, in the faucet device 10, a portion other than the faucet main body 14 and the negative pressure breaking device 18 is provided in a concealed portion. Thereby, the design of the faucet device 10 as a whole can be improved.

The negative pressure destruction device 18 is attached to, for example, the wall surface KB of the kitchen where the system kitchen 2 is installed. As described above, the negative pressure breaking device 18 is provided separately from the faucet main body 14. The negative pressure destruction device 18 may be housed in, for example, the inside of the upper cabinet of the system kitchen 2. That is, the negative pressure breaking device 18 may be provided in a concealed portion.

The faucet device 10 is not limited to the system kitchen 2, and may be used, for example, in a vanity. The faucet main body 14 may be configured to discharge raw water or modified water toward the wash bowl of the vanity, for example.

2 (a) and 2 (b) are cross-sectional views showing a negative pressure breaking device.
As shown in FIGS. 2A and 2B, the negative pressure breaking device 18 has a main body 40. The main body 40 has a first connection port 41, a second connection port 42, an intake port 43, a main flow path 44, and a branch flow path 45. The first connection port 41 is connected to the first flow path valve 16 via the flow path 31. The second connection port 42 is connected to the reforming water generator 12 via the flow path 32. The main flow path 44 connects the first connection port 41 and the second connection port 42. The branch flow path 45 branches from the middle of the main flow path 44. The intake port 43 is provided at the end of the branch flow path 45. That is, the branch flow path 45 connects the intake port 43 in the middle of the main flow path 44.

The main body 40 is installed, for example, with the first connection port 41 facing upward and the second connecting port 42 facing downward. The branch flow path 45 is bent in a substantially L shape, for example, and the intake port 43 is directed upward. The intake port 43 faces upward together with the first connection port 41, for example, with the first connection port 41 facing upward.

The negative pressure breaking device 18 further includes a check valve 46, an intake valve 47, and a connecting mechanism 48. The check valve 46, the intake valve 47, and the connecting mechanism 48 are provided in the main body 40. The check valve 46 suppresses the backflow of water to the upstream side by opening and closing the main flow path 44. The negative pressure breaking device 18 is provided with a check valve 46 on the upstream side of the reformed water generator 12 to prevent the reformed water generated by the reformed water generator 12 from flowing back to the clean water side. To do.

The intake valve 47 opens and closes the intake port 43. The intake valve 47 is connected to the check valve 46 via the connecting mechanism 48, so that the intake port 43 is opened when the check valve 46 is closed, and the intake valve 47 is taken in when the check valve 46 is opened. The intake port 43 is opened and closed in conjunction with the opening and closing operation of the check valve 46 so as to close the port 43.

The intake port 43 is connected to the downstream side of the check valve 46 via the branch flow path 45, so that when the intake valve 47 is opened, the downstream side of the check valve 46 is opened to the atmosphere. As a result, it is possible to more reliably prevent the reformed water generated by the reformed water generator 12 from flowing back to the clean water side. The negative pressure breaking device 18 is a so-called atmospheric pressure type vacuum breaker or a pressure type vacuum breaker.

Further, the intake port 43 is provided above the overflow surface OFL (see FIG. 1) of the flow path 33 from the reformed water generator 12 to the water discharge port 20a. In other words, the overflow surface OFL is the highest point (highest position) of the flow path 33 from the reformed water generator 12 to the spout 20a. More specifically, the seat surface SS of the intake valve 47 is provided above the overflow surface OFL. The seat surface SS is a surface on which the intake valve 47 closes the intake port 43. The seat surface SS is provided, for example, 150 mm or more above the overflow surface OFL.

In the negative pressure breaking device 18, when the first flow path valve 16 is opened and the primary pressure of the water supply source WS is applied to the first connection port 41 side, as shown in FIG. 2A, the check valve 46 opens and the intake valve 47 closes the intake port 43. As a result, raw water is supplied to the reformed water generator 12. Then, when a negative pressure is applied to the first connection port 41 side, the check valve 46 closes and the intake valve 47 opens the intake port 43 as shown in FIG. 2B. As a result, it is possible to suppress the backflow of the reformed water to the water supply side even when a negative pressure is generated on the primary side.

FIG. 3 is a block diagram showing a faucet device according to an embodiment.
As shown in FIG. 3, the first flow rate adjusting unit 21 of the faucet main body 14 is connected to the water supply source WS via the water supply pipe 51 and the hot water supply pipe 52. Water and hot water are supplied to the first flow rate adjusting unit 21 via the water supply pipe 51 and the hot water supply pipe 52. The first flow rate adjusting unit 21 adjusts the respective flow rates of water and hot water according to the operation of the user, mixes the water and hot water, and supplies the water to the water discharge unit 20. As a result, the raw water whose flow rate and temperature have been adjusted is discharged from the water discharge port 20a of the water discharge unit 20.

The first flow path valve 16 is connected to the water supply pipe 51 and the water supply source WS via the branch pipe 53. As a result, by opening the first flow path valve 16, raw water is supplied to the negative pressure breaking device 18 and the reformed water generator 12. The first flow path valve 16 suppresses, for example, the constant application of the primary pressure of the water supply source WS to the negative pressure breaking device 18 and the reformed water generator 12.

Further, as shown in FIG. 3, the faucet device 10 further includes, for example, a control unit 60, an operation unit 62, a flow rate sensor 64, and a second flow path valve 66. The control unit 60 controls the operation of each part of the faucet device 10.

The operation unit 62 is electrically connected to the control unit 60. The operation unit 62 inputs various operation instructions to the control unit 60 according to the operation of the user. The operation unit 62 inputs, for example, the discharge of alkaline ionized water, the discharge of acidic water, and the pH value of the discharged alkaline ionized water or acidic water to the control unit 60. The input of the instruction from the operation unit 62 to the control unit 60 may be wired or wireless.

The flow rate sensor 64 is provided on the upstream side of the reforming water generator 12 and measures the flow rate of the water supplied to the reforming water generator 12. The flow rate sensor 64 is electrically connected to the control unit 60, and the flow rate measurement result is input to the control unit 60.

The second flow path valve 66 is provided on the downstream side of the negative pressure breaking device 18, and opens and closes the flow path 33 between the negative pressure breaking device 18 and the spout 20a. In this example, the second flow path valve 66 is provided downstream of the reforming water generator 12. The second flow path valve 66 may be provided, for example, between the negative pressure breaking device 18 and the reforming water generator 12. The position of the second flow path valve 66 may be any position downstream of the negative pressure breaking device 18.

The first flow path valve 16 and the second flow path valve 66 are electrically connected to the control unit 60. The opening and closing of the first flow path valve 16 and the second flow path valve 66 is controlled by the control unit 60. That is, in this example, the first flow path valve 16 and the second flow path valve 66 are so-called solenoid valves. The first flow path valve 16 and the second flow path valve 66 are not limited to this, and may be valves that manually switch between opening and closing.

The control unit 60 closes the first flow path valve 16 and the second flow path valve 66 when the reforming water is not discharged. Then, the control unit 60 operates the reforming water generator 12 to open the first flow path valve 16 and the second flow path valve 66 when the reforming water is generated and the water is discharged from the spout 20a. .. The control unit 60 switches the opening and closing of the first flow path valve 16 and the second flow path valve 66 in conjunction with the generation of the reformed water by the reforming water generator 12. As described above, the first flow path valve 16 and the second flow path valve 66 are, for example, solenoid valves interlocking with the reforming water generator 12. The first flow path valve 16 and the second flow path valve 66 do not necessarily have to be linked with the operation of the reforming water generator 12. For example, even if the first flow path valve 16 and the second flow path valve 66 are operated in order to allow raw water to pass through the flow path on the reforming water generator 12 side while the reforming water generator 12 is stopped. Good.

The second flow rate adjusting unit 22 of the faucet main body 14 is connected to the downstream of the second flow path valve 66 and is connected to the water supply pipe 51 downstream of the first flow rate adjusting unit 21 via the branch pipe 54. .. The first flow rate adjusting unit 21 suppresses the water flowing in from the second flow rate adjusting unit 22 side from flowing out to the upstream side of the first flow rate adjusting unit 21. As a result, by opening the second flow path valve 66 and the second flow rate adjusting unit 22, the reformed water generated by the reforming water generator 12 is discharged from the spout 20a of the spouting unit 20. In this example, the first flow rate adjusting unit 21 is provided between the branch pipe 53 and the branch pipe 54. The position of the first flow rate adjusting unit 21 is not limited to this, and may be provided, for example, on the upstream side of the branch pipe 53 or on the downstream side of the branch pipe 54. The position of the first flow rate adjusting unit 21 can be changed as appropriate.

The reformed water generator 12 has an electrolytic cell 70 and a solenoid valve 72. An anode plate and a cathode plate are provided inside the electrolytic cell 70. The electrolytic cell 70 is electrically connected to the control unit 60. The electrolytic cell 70 electrolyzes the tap water flowing inside based on the signal transmitted from the control unit 60. As a result, the electrolytic cell 70 produces alkaline ionized water and acidic water as reformed water from tap water.

The solenoid valve 72 is connected to the electrolytic cell 70 and also to the water discharge port 23 provided in the faucet main body 14. Further, the solenoid valve 72 is electrically connected to the control unit 60 and opens and closes under the control of the control unit 60.

The control unit 60 opens the solenoid valve 72 when the electrolytic cell 70 operates. When the operation unit 62 instructs the electrolytic cell 70 to discharge alkaline ionized water, the electrolytic cell 70 sends the alkaline ionized water generated by electrolysis to the spout 20a, discharges the water from the spout 20a, and is generated by electrolysis. Acidic water is sent to the drainage port 23 and discharged from the drainage port 23 to the sink 4 or the like. On the contrary, when the operation unit 62 instructs the electrolytic cell 70 to discharge acidic water, the electrolytic cell 70 sends the acidic water generated by electrolysis to the spout 20a, discharges the water from the spout 20a, and is generated by electrolysis. The alkaline ionized water is sent to the water disposal port 23 and discharged from the water disposal port 23 to the sink 4 or the like.

The water discharge port 23 does not necessarily have to be provided integrally with the faucet main body 14, and may be provided separately from the faucet main body 14.

Next, the operation of the faucet device 10 according to the present embodiment will be described.
The control unit 60 of the faucet device 10 opens the first flow path valve 16 and the second flow path valve 66 from the closed state when the operation unit 62 instructs the operation unit 62 to discharge alkaline ionized water. Switch to. After that, the user operates the second flow rate adjusting unit 22 and opens the second flow rate adjusting unit 22, so that the raw water is supplied to the reformed water generator 12.

When the user opens the second flow rate adjusting unit 22 and detects that the raw water has been supplied to the reforming water generator 12 by the flow rate sensor 64, the control unit 60 operates the electrolytic cell 70 to electrolyze the tap water. At the same time, the solenoid valve 72 is opened. As a result, alkaline ionized water is discharged from the water discharge port 20a, and acidic water is discharged from the water discharge port 23.

The control unit 60 operates the electrolytic cell 70, for example, when the flow sensor 64 detects that the user has closed the second flow rate adjusting unit 22, or when a predetermined time has elapsed from the start of the operation of the electrolytic cell 70. , The solenoid valve 72 is closed, and the first flow path valve 16 and the second flow path valve 66 are switched from the open state to the closed state.

In the faucet device 10 according to the present embodiment, the negative pressure breaking device 18 is provided upstream of the reforming water generator 12, and the intake port 43 is opened when the check valve 46 of the negative pressure breaking device 18 is closed. The downstream side of the check valve 46 is open to the atmosphere. As a result, for example, even if dust bites occur in the check valve 46, it is possible to prevent the reformed water from flowing back to the clean water side. Further, by providing the intake port 43 above the overflow surface OFL of the flow path 33 from the reformed water generator 12 to the water discharge port 20a, the water in the flow path downstream from the check valve 46 is discharged when the air is opened. It is possible to suppress the direction toward the check valve 46 side. Therefore, it is possible to provide a faucet device 10 that can more reliably suppress the backflow of reformed water.

Further, in the faucet device 10, by closing the second flow path valve 66, a negative pressure is generated on the primary side, the intake port 43 of the negative pressure breaking device 18 is opened, and the downstream side of the check valve 46 is open to the atmosphere. Even when this is done, it is possible to further prevent the water remaining in the flow path from being discharged from the spout 20a.

Further, since the control unit 60 interlocks the second flow path valve 66, which is a solenoid valve, with the reforming water generator 12, the second flow path valve 66 is moved according to the discharge stop (generation) of the reforming water. It can be opened and closed, and it is possible to more reliably prevent the water remaining in the flow path when it is opened to the atmosphere from being discharged from the spout 20a.

Further, in the faucet device 10, since the reforming water generator 12 and the first flow path valve 16 are concealed, the design of the faucet device 10 as a whole can be improved.

Further, in the faucet device 10, by providing the negative pressure breaking device 18 separately from the faucet main body 14, the faucet main body 14 can be miniaturized and the design of the faucet main body 14 can be improved. You can also.

Further, the negative pressure breaking device 18 is provided so as to be directly connected to the flow path extending from the water supply source WS. In other words, no edge-cut tank or the like is provided in the flow path extending from the water supply source WS to the negative pressure destruction device 18. As described above, since it is not necessary to provide an edge cutting tank or the like, it is possible to prevent the backflow of reformed water with a more compact configuration.

FIG. 4 is a block diagram showing a modified example of the faucet device according to the embodiment.
As shown in FIG. 4, in this example, the reformed water generator 12 further includes an additive supply unit 74. The additive supply unit 74 is provided on the upstream side of the electrolytic cell 70, and supplies the additive to the raw water supplied to the electrolytic cell 70. The additive supply unit 74 is electrically connected to the control unit 60 and operates under the control of the control unit 60. The additive supply unit 74 supplies, for example, calcium to raw water as an electrolysis accelerator (additive). Thereby, for example, strong alkaline ionized water having a pH value of 10 or more can be generated in the electrolytic cell 70.

As described above, the reformed water generator 12 may have an additive supply unit 74, and the modified water may be generated by supplying the additive to the raw water from the additive supply unit 74. In this case, the reformed water may deviate from the water quality standard for clean water. In such a case, it is more effective to provide the negative pressure breaking device 18 as described above to suppress the backflow of the reforming water. Even when strongly alkaline alkaline ionized water or highly acidic acidic water is generated as the reformed water, the backflow of the reformed water can be appropriately suppressed and the influence on the clean water can be appropriately suppressed.

In the above embodiment, a reformed water generator 12 that generates alkaline ionized water and acidic water as reformed water is shown. The reformed water generator 12 is not limited to this, for example, a configuration in which a liquid containing hypochlorous acid is generated as reformed water by electrolyzing tap water, sodium hydrogen carbonate or carbon dioxide gas (carbon dioxide gas) (raw water). Carbon dioxide) may be supplied to the raw water as an additive to generate carbonated water as reformed water.

Further, the reformed water may be, for example, a liquid containing metal ions such as silver ions and copper ions. Alternatively, a liquid containing electrolytic chlorine or ozone may be used. The reformed water generator 12 may have an arbitrary configuration that reforms the raw water to generate water having properties different from those of the raw water.

In the above embodiment, the second flow path valve 66 of the solenoid valve is provided. Not limited to this, for example, the second flow rate adjusting unit 22 operated manually may be used as the second flow rate valve. However, by providing the second flow path valve 66 of the solenoid valve as described above and providing the second flow path valve 66 in conjunction with the reforming water generator 12, for example, it is possible to suppress forgetting to close by manual operation. Can be done. It is possible to more reliably prevent water from being discharged from the spout 20a when the second flow rate adjusting unit 22 is forgotten to be closed and the air is opened to the atmosphere.

In the above embodiment, the second flow rate adjusting unit 22 of the faucet main body 14 is arranged on the downstream side of the reformed water generator 12. The second flow rate adjusting unit 22 may be provided, for example, on the upstream side of the negative pressure breaking device 18. In this case, the manually operated second flow rate adjusting unit 22 may be used as the first flow rate valve 16.

In the above embodiment, the raw water and the reformed water are discharged from the same spout 20a. Not limited to this, the raw water may be discharged from a spout different from the reformed water. Further, the faucet device 10 is not limited to a configuration capable of discharging raw water and reformed water, and may be configured to discharge only reformed water, for example.

FIG. 5 is a side view showing a modified example of the faucet device according to the embodiment.
As shown in FIG. 5, the faucet device 100 has a tip branching tool 102. The same reference numerals are given to those having substantially the same functions and configurations as those of the above-described embodiment, and detailed description thereof will be omitted.

The tip branching tool 102 is attached to the spout 20a of the spout 20 of the faucet body 14. The tip branching tool 102 is connected to the negative pressure breaking device 18 and the reformed water generator 12 via a pipe such as a flexible tube. In the faucet device 100, the reforming water generator 12 and the negative pressure breaking device 18 are provided downstream of the first flow rate adjusting unit 21 of the faucet main body 14. Raw water is supplied to the reforming water generator 12 and the negative pressure breaking device 18 via the faucet main body 14 and the tip branching tool 102.

The reformed water generator 12 is connected to the tip branching tool 102 via a pipe such as a flexible tube. The reformed water generator 12 returns the generated reformed water to the tip branching tool 102. The tip branching tool 102 selectively switches between raw water and reformed water by switching the path of raw water supplied from the faucet main body 14, and discharges water.

Further, in the faucet device 100, the reforming water generator 12 and the negative pressure breaking device 18 are provided on the counter 3.

The reforming water generator 12 may be provided in the cabinet 5 in the same manner as in the above embodiment. However, when the reforming water generator 12 and the negative pressure breaking device 18 are connected to the tip branching tool 102, the tip branching is performed by providing the reforming water generator 12 and the negative pressure breaking device 18 on the counter 3. The connection with the tool 102 can be facilitated. For example, when the faucet device 100 is retrofitted to the existing system kitchen 2, the faucet device 100 can be easily attached without requiring processing on the counter 3 or the cabinet 5.

FIG. 6 is a block diagram showing a modified example of the faucet device according to the embodiment.
As shown in FIG. 6, the tip branching tool 102 has a flow path switching valve 110, a water discharge port 112, and a water discharge port 114. The flow path switching valve 110 is connected to the water discharge port 20a, the first flow path valve 16, and the water discharge port 112 of the water discharge unit 20. The flow path switching valve 110 switches between a path for supplying the raw water supplied from the water discharge port 20a to the first flow path valve 16 and a path for supplying the raw water to the water discharge port 112. The flow path switching valve 110 switches each path by, for example, a manual operation. In other words, the flow path switching valve 110 is a three-way valve.

The flow path switching valve 110 is switched to the spout 112 side. As a result, raw water is discharged from the spout 112 of the tip branching tool 102. On the other hand, the flow path switching valve 110 is switched to the first flow path valve 16 side. As a result, raw water is supplied to the reformed water generator 12.

The electrolytic cell 70 of the reforming water generator 12 is connected to the water discharge port 112 via the second flow path valve 66, and is connected to the water discharge port 114 via the solenoid valve 72. As a result, the reformed water is discharged from the water discharge port 112 of the tip branching tool 102, and unnecessary water such as acidic water is discharged from the water discharge port 114 to the sink 4 or the like.

Also in this faucet device 100, by providing the intake port 43 above the overflow surface OFL of the flow path from the reformed water generator 12 to the water discharge port 20a, the improvement is more reliable as in the above embodiment. The backflow of quality water can be suppressed. As described above, the branching of the raw water to the reforming water generator 12 may be performed on the downstream side of the first flow rate adjusting unit 21, or as described with reference to FIG. 3, the first flow rate adjusting unit 21. May be done on the upstream side.

The embodiments of the present invention have been described above. However, the present invention is not limited to these descriptions. With respect to the above-described embodiment, those skilled in the art with appropriate design changes are also included in the scope of the present invention as long as they have the features of the present invention. For example, the shape, size, material, arrangement, etc. of each element included in the faucet devices 10, 100, etc. are not limited to those exemplified, and can be changed as appropriate.
In addition, the elements included in each of the above-described embodiments can be combined as much as technically possible, and the combination thereof is also included in the scope of the present invention as long as the features of the present invention are included.

2 system kitchen, 3 counter, 4 sink, 5 cabinet, 10, 100 faucet device, 12 reforming water generator, 14 faucet body, 16 first flow valve, 18 negative pressure breaking device, 20 water discharge part, 20a Water spout, 21 1st flow rate adjusting part, 22 2nd flow rate adjusting part, 23 Waste water port, 31 to 33 flow paths, 40 Main body part, 41 1st connection port, 42 2nd connection port, 43 Intake port, 44 Main flow path , 45 branch flow path, 46 check valve, 47 intake valve, 48 connection mechanism, 51 water supply pipe, 52 hot water supply pipe, 53, 54 branch pipe, 60 control unit, 62 operation unit, 64 flow rate sensor, 66 second flow path Valve, 70 Electrolyte tank, 72 Solenoid valve, 74 Additive supply part, 102 Tip branching tool, 110 Flow rate switching valve, 112 Water spout, 114 Discharge port

Claims (3)

A reformed water generator that generates reformed water from the drinkable water by reforming the drinkable water.
A water discharge unit provided downstream of the reformed water generator and having a spout for discharging the reformed water.
A first flow path valve which is provided on the upstream side of the reformed water generator and opens and closes a flow path for supplying the drinkable water to the reformed water generator.
A negative pressure breaking device provided between the reformed water generator and the first flow path valve,
With
The negative pressure breaking device
A check valve provided on the upstream side of the reformed water generator,
An intake port that opens the downstream side of the check valve to the atmosphere,
The intake port is opened when the check valve is closed, and the intake port is closed in conjunction with the opening / closing operation of the check valve so as to close the intake port when the check valve is opened. With an intake valve that opens and closes
Have,
The intake port is provided above the overflow surface of the flow path from the reformed water generator to the water discharge port .
A second flow path valve provided on the downstream side of the negative pressure breaking device and opening and closing the flow path between the negative pressure breaking device and the spout is further provided.
The first flow path valve and the second flow path valve are solenoid valves that are interlocked with the reforming water generator, and are characterized in that they are closed in conjunction with the operation stop of the reforming water generator. Faucet device. The reforming water generator and the first Nagareroben is claim 1 Symbol placement faucet device, characterized in that provided in the hidden portion. The faucet device according to claim 1 or 2 , wherein the negative pressure breaking device is provided separately from the faucet main body having the water discharge portion.

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