JPH11166257A - Water supply system for toilet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water supply system for a toilet, by which a high water- saving effect can be obtained without damaging amenity and convenience in the usage of a stool by properly utilizing potable water and reclaimed water in response to the supply flow rate and quality of reclaimed water, the inclination of a user, etc. SOLUTION: A control valve 18 properly controls a mixing valve 23 in a mixing unit 12 and a changeover valve 29 in a water-distribution unit 14 on the basis of set data displaying the inclination of a user related to water quality and the functions (stool flushing, private-part flushing, etc.), of water indicated by an operating section 16 by the user. Accordingly, specified places (a low tank, a hot-water flushing instrument, etc.), in a toilet device are supplied with the water of most adequate water quality corresponding to the use object of water and the inclination of the user. When reclaimed water is used, a high water-saving effect is obtained by maximally utilizing reclaimed water while ensuring water quality in the irreducible minimum of a demand corresponding to the application of water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply system used for a toilet apparatus having a function of washing a local area using water.

[0002]

2. Description of the Related Art In recent years, flush toilets have become widespread. In addition, toilet apparatuses having a local cleaning means for cleaning a local part of a human body with water (for example, an apparatus generally called a hot water flush toilet seat) are also provided. It is becoming widely used. On the other hand, in recent years, the importance of saving water has been recognized by many people, and in some areas, it is obligated by law to use middle water for buildings and facilities that meet certain conditions.

[0003] In view of the above situation, even in the toilet apparatus (including the toilet bowl body), the water saving efficiency can be improved by appropriately using the middle water (for example, water obtained by performing simple purification treatment on the remaining hot water in the bath or rainwater). Have been proposed to increase the In such a toilet apparatus, local cleansing and hand washing use water of high cleanliness, i.e., tap water supplied from tap water, in consideration of hygiene and psychological aspects, while washing toilets and the like are not so expensive. It is common to use clean water and middle water depending on the application, such as using middle water where clean water is not required. Further, there has been proposed a toilet apparatus in which relatively high purification treatment such as sterilization or filtration is performed to increase the cleanliness of the wastewater so that the wastewater can be used for local cleaning (Japanese Patent Laid-Open No. Hei 10-260,009). 9-95996).

[0004]

In the future, as the technology for recycling wastewater improves, it is expected that the quality of middle water will improve and the amount of water supplied will also increase. Therefore, it is preferable that the toilet water can be more actively used in the toilet apparatus than in the related art. However, the conventional toilet apparatus has been designed based on the concept of clearly distinguishing between uses of clean water and uses of clean water. In such a conventional toilet apparatus, as described above, when high quality medium water can be used, the water saving effect obtained by using the medium water cannot be maximized.

[0005] By the way, the reuse of wastewater generated in homes has conventionally been centered on a wide-area circulation system in which wastewater discharged from many homes is collected through sewage and purified using large-scale purification equipment. Therefore, the reuse in household units has been performed only in a limited form such as a form in which the remaining hot water is reused as washing water. However, devices for purifying and reusing wastewater at home have also been proposed, and it is expected that in the future, the purification and reuse of wastewater will become possible even in household units.
In this case, the wastewater generated by the house is purified and reused as wastewater, which is compared with the case of using wastewater generated from wastewater from an unspecified number of households as in the wide area circulation system. In addition, the user's psychological resistance to using the water is relatively small. Therefore, it is considered that medium water will be used in a wider range than before. In this case, the water saving effect is further enhanced.

However, when recycling wastewater on a household basis, the amount of generated wastewater is not always stable, so that there is a problem that a stable supply of medium water is not completely guaranteed. In general, the quality (degree of dirt) and amount of drainage differs from household to household. Therefore, depending on the household, the amount of the intermediate water obtained by purifying the wastewater may be less than the amount of the intermediate water that can be consumed in the household. Further, it is considered that the consumption ratio of clean water and medium water greatly varies depending on the preference of the user.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to supply water (for example, supply flow rate, water supply pressure, water quality) and user preference. An object of the present invention is to provide a toilet water supply system that can obtain a high water-saving effect without impairing comfort and convenience in using a toilet bowl by appropriately using clean water and middle water according to the conditions.

[0008]

SUMMARY OF THE INVENTION A toilet water supply system according to the present invention, which has been made to solve the above-mentioned problems, introduces a plurality of water sources from a plurality of water sources for supplying water having different water qualities. It is characterized by comprising a water mixing means for generating mixed water, and a water distribution means for sending the mixed water generated in the water mixing means to one or more water supply points in the toilet device.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The toilet water supply system according to the present invention selects one of a plurality of waters having different water qualities (for example, clean water and medium water) to select a predetermined portion (for example, Not only can be delivered to a low tank or a local washing water generator), but also can be delivered to the predetermined location, if necessary, by mixing the plurality of waters. . In the following description, “mixed water” means not only mixed water in the ordinary sense, but also a water having a specific water quality of 100%, such as 100% clean water or 100% medium water. And water that is

In the above-mentioned toilet water supply system, the water mixing means includes, for example, a mixing section having a plurality of water inlets provided corresponding to each water supply source, and a plurality of water supply means respectively connected to the plurality of water inlets. And a water pipe. The mixing section is provided with, for example, a mixing flow path, a plurality of relay flow paths respectively connecting the mixing flow path and the plurality of water inlets, and a valve mechanism for opening and closing each relay flow path. This valve mechanism may be configured by appropriately using a switching valve, a solenoid valve, a flow control valve, and the like.

In the above-described water mixing means, when the tip of the water pipe is connected to the plurality of water sources, the plurality of water supplied from each water source is mixed through separate water pipes and relay channels. It flows into the channel and is mixed there. The mixed water thus generated is supplied to each water supply point (low tank, local washing machine, hand washing machine, etc.) in the toilet device by the water distribution means.
Sent to

[0012] It is preferable that the water mixing means is configured to be able to change a mixing ratio of the plurality of waters. In this manner, more detailed water supply control can be performed according to the water supply situation and the user's preference.

The water distributing means may be configured to simultaneously send mixed water to all water supply points in the toilet apparatus, but may be configured to send water to one or more water supply points appropriately selected according to the use of the mixed water. If so, the water saving efficiency will be higher.

According to the toilet water supply system configured as described above, a plurality of waters having different water qualities, for example, tap water and medium water can be mixed and supplied to a predetermined water supply point in the toilet device. . Then, the mixing ratio of clean water and middle water can be appropriately changed according to the water supply situation, user preference, and the like. The following is an example of a method for mixing clean water and medium water.

(1) When the toilet apparatus is installed in a place where the clean water of a high cleanness is supplied at a sufficiently large flow rate, the ratio of the flow rate of the clean water to the flow rate of the clean water is reduced (including the case of zero). To In this case, the medium water can be used to the maximum, and a large water saving effect can be obtained. Conversely, when installing a toilet device in a place where the supply flow rate of medium water is small, increase the ratio of clean water to secure water at the flow rate necessary for normal operation of various functional units of the toilet device. be able to. In addition, when middle water cannot be used at all, only clean water may be used. (2) When the toilet device is installed in a place where the cleanliness of the supplied medium water is not high, the cleanliness of the mixed water can be increased by increasing the ratio of clean water. In addition, even if the cleanliness of the clean water is lowered for some reason, although the cleanliness of the clean water is normally sufficiently high, the above-described operation may be performed. (3) Even if the water used in the toilet equipment is mainly supplied by tap water, if the tap water is cut off or the supply pressure of the tap water drops due to water supply restriction, increase the ratio of tap water. To In this way, each function of the toilet device can be used even when the water supply is cut off or the water supply is restricted. (4) Regardless of the water supply situation, if the user mainly wants to use only either clean water or medium water, water can be supplied according to the request.

[0016] The toilet water supply system according to the present invention may be provided with a purifying means for purifying the mixed water. The sewage supplied from the water supply source is usually already subjected to a certain purification treatment. Therefore, if such medium water is further purified by purifying means,
Even if the ratio of middle water in the mixed water is set relatively high,
Sufficiently clean water can be supplied to each water supply point.

The toilet water supply system according to the present invention may be provided with a cleanliness detecting means for detecting the cleanliness of the mixed water flowing into the water supply point in the toilet apparatus. Here, as an example of the cleanliness detecting means, the turbidity detecting means for detecting the turbidity of the mixed water using the transmittance when light passes through the mixed water, and the pH of the mixed water is detected by a pH sensor pH detecting means, and the like. By using such a cleanliness detecting means, for example, when the cleanliness of mixed water changes for some reason, it is possible to perform control such as changing the mixing ratio of clean water and middle water according to the change. Become.

The toilet water supply system according to the present invention may be provided with an electrolyzed water generating means for electrolyzing the mixed water to generate water containing a sterilizing substance or ions. In this case, since the germs in the mixed water are killed by the action of the germicidal substance or ion, hand washing and local washing can be performed with sanitary water containing no germs. The following effects can be obtained by using the electrolyzed water generating means. If the bacteria stored in the water stored in the low tank at a high concentration, organic substances generated as a result of the life activity of the bacteria adhere to the inner wall surface of the low tank to form dirt such as slime. Therefore, if the electrolyzed water generating means is used as described above, the mixed water is sterilized by the germicidal substance or ion obtained by electrolysis, so even if the mixed water is stored in the low tank for a long time, No dirt is formed.
As a result, the labor required for cleaning is greatly reduced.

In the toilet water supply system according to the present invention, the mixing ratio of the plurality of waters may be changed according to the selection of a water supply point. For example, when the water supply point is only a low tank, the medium water is mainly supplied, while when distributing water to a local washing machine or a hand washing machine, the ratio of clean water is increased to supply water with a high degree of cleanliness. The mixing ratio of clean water and medium water is appropriately changed according to the conditions. In this way, it is possible to enhance the water saving effect while maintaining comfort and convenience in using the toilet.

In the toilet water supply system according to the present invention, a flow rate adjusting means for adjusting the flow rate of the mixed water according to the selection of a water supply point may be provided. For example, when the low water tank is included in the water supply point, the flow rate of the mixed water is increased, while when the water supply point is only the local cleaning device, the flow rate of the mixed water is appropriately reduced. This not only prevents wasteful use of water, but also prevents a situation in which excessive water pressure is applied to the components of the toilet apparatus and the components are damaged.

In the toilet water supply system according to the present invention, a plurality of flow paths for guiding a plurality of water from the water supply source to the water mixing means may be constituted by one pipe. In this way, compared to a case where a plurality of pipes are separately connected, the labor required for the pipe connection work is reduced, and not only the workability is improved, but also the vicinity of the pipes is easily cleaned.
Also, reducing the number of pipes is preferable in appearance.

[0022]

FIG. 1 is a schematic diagram showing a toilet water supply device (hereinafter simply referred to as "water supply device") 10, which is a first embodiment of a toilet water supply system according to the present invention. In this figure, on the upper surface of a toilet 41, a hot water washer 43 for performing local washing with hot water, a low tank 44 for storing toilet wash water, and a spout 4 for supplying hand wash water are provided.
The toilet device 42 having 5 and the like is placed. Under the floor 46 of the toilet room, a clean water supply pipe 47 and an intermediate water supply pipe 48 are provided.
Is buried. The water supply device 10 is for taking in clean water and medium water from the two water supply pipes as appropriate and sending it to each part of the toilet device 42. The mixing unit 12 embedded in the wall 49 of the toilet room, the toilet device 42, a water distribution unit 14 housed in a casing 50, an operation unit 16 installed on the wall of the toilet room, a control unit (not shown in FIG. It is mainly composed of piping.

FIG. 2 is a schematic configuration diagram of a water circuit and a control system of the water supply device 10. Hereinafter, the configuration of the water supply device 10 will be described in more detail with reference to FIGS. 1 and 2.

The mixing unit 12 has a water supply pipe 21 and a water supply pipe 22 for introducing clean water and medium water. Each of the introduction pipes is provided with a mixing valve provided inside the mixing unit 12. 23 water inlets. Pressure sensors 24 and 25 are provided on the way of the clean water introduction pipe 21 and the intermediate water introduction pipe 22, respectively. Furthermore,
A turbidity sensor 26 is also provided on the intermediate water introduction pipe 22. As the turbidity sensor 26, a conventionally known one, for example, a turbidity sensor configured to measure the turbidity of water based on the transmittance when light passes through water is used. The water outlet of the mixing valve 23 is connected to the water distribution unit 14 by a water distribution pipe 27.
Is connected to

In the water distribution unit 14, the water distribution pipe 2
A flow control valve 28 is provided in the middle of the step 7. The distal end of the water delivery pipe 27 is connected to the water inlet of a switching valve 29 having three water outlets. The three outlets are connected to the hot water washer 43, the low tank 44, and the spout 45 by three branch pipes, that is, a first branch pipe 30, a second branch pipe 31, and a third branch pipe 32, respectively. . Purification / sterilization units 33 to 35 are respectively provided on the way of the three branch pipes. Furthermore, the first branch pipe 30 and the second branch pipe 31 are also provided with turbidity sensors 36 and 37. The turbidity sensors 36 and 37 include the turbidity sensor 2
What is necessary is just to use the thing of the same structure as 6.

The purifying / sterilizing unit is a unit having a means for sterilizing water flowing inside and a means for purifying the water. As the sterilizing means, for example, those using a substance having a sterilizing property, those using ultraviolet rays, those using ozone, and the like can be used. Similarly, the purifying means can be configured using a conventionally known method such as a method using filtration, a method using activated carbon adsorption, a method using biological treatment, and the like.

The control unit 18 includes the pressure sensors 24 and 25
Based on the output signals from the turbidity sensors 26, 36, and 37 and the operation signals from the operation unit 16, the operation of the mixing valve 23, the flow control valve 28, the switching valve 29, and the three purification / sterilization units 33 to 35 is performed. Control as appropriate. The control unit 18
May be provided for exclusive use for controlling the water supply device 10, but the control of both the water supply device 10 and the toilet device 42 may be performed by the same control unit 18.

The operation unit 16 is provided with various operation keys such as a key for selecting functions such as a toilet flush and a local flush, and a key for controlling operations of the water supply device 10 and the toilet device 42. The operation unit 16 is also provided with various switches for setting data (hereinafter, referred to as “setting data”) relating to the use of water and the correspondence between water quality and water supply pressure to be used for the purpose. . The setting data is, for example, "Always use only clean water""Always use clean water first""Use clean water only for toilet flushing""Always use clean water first" It is data that instructs what kind of water to use for what purpose, such as "mixing clean water and medium water as needed". Such setting data is stored in a storage unit (memory) (not shown) provided in the operation unit 16 or the control unit 18.

FIG. 3 is a flowchart showing an example of the water supply control process in the water supply device 10. Hereinafter, the water supply control process will be described with reference to FIGS.

First, when the user selects a function to be used (toilet bowl washing, local washing, etc.) by operating the keys of the operation unit 16 (step S10), the control unit 18 reads the setting data from the memory (step S10). S12) Based on the setting data and the type of the selected function, it is determined whether or not to supply the tap water (step S14).

As an example of the case where the medium water is not used, the setting data indicates that “always use the water with priority” or the setting data indicates that “the priority is given only to the toilet flushing. When the user selects “local cleaning”, and the like. In such a case, the control unit 18 controls the mixing valve 23 so that only the clean water introduced from the clean water introduction pipe 21 flows into the mixing unit 12 (Step S15).

On the other hand, as an example of supplying medium water,
When the setting data indicates "always use water with priority", or when the setting data indicates "use priority for medium water only for toilet flushing", and the user When "washing a toilet" is selected, there are the following. In such a case, the control unit 18 controls such that only the intermediate water introduced from the intermediate water introduction pipe 22 flows into the mixing unit 12.
The mixing valve 23 is controlled (step S16).

If it is determined in step S16 that the sewage is to be used, the control unit 18 checks the sewage quality based on the output signal of the turbidity sensor 26, and determines that the sewage has a predetermined reference level. Is determined (step S18). Here, the reference level for judging the water quality of the middle water is defined as follows: if a certain middle water has a water quality equal to or higher than the reference level, the water quality is subjected to a purification process described later to use the water quality. The level is such that it is guaranteed that the cleanliness can be increased to a sufficiently high level corresponding to the above, and the value is obtained in advance by experiments or the like.

In step S18, if it is determined that the quality of the intermediate water has reached the reference level, the control process proceeds to step S20. On the other hand, if the quality of the sewage does not reach the reference level, even if the sewage is subjected to a purification treatment, water of sufficiently good quality cannot be obtained. Therefore, the control process proceeds to step S15, in which the mixing valve 23 is controlled so that the clean water flows into the water delivery pipe 27 instead of the intermediate water.

In step S20, the control unit 18 obtains the water pressure of the clean water and the clean water based on the output signals of the pressure sensors 24 and 25, respectively, and determines the water to be used from now on (the clean water or the clean water. Is determined to be greater than a predetermined value. Here, the predetermined value is appropriately determined in advance, for example, as a large value for toilet cleaning and a small value for local cleaning, and the data is included in the setting data in advance and stored in the memory. To save.

If it is determined in step S20 that the selected water pressure is higher than the predetermined value, the subsequent steps are as follows.

First, the control unit 18 appropriately controls the flow control valve 28 and the switching valve 29 to thereby control the water distribution unit 1.
4, a location corresponding to the function selected previously (for example, when the local cleaning is selected, the hot water cleaning device 43,
When the toilet flush is selected, water is supplied to the low tank 44) at a predetermined flow rate (step S22).
For example, assuming that the function selected by the user is the local cleaning function, the control unit 18 switches the switching valve 29 so that water from the water delivery pipe 27 flows into the first branch pipe 30, and Based on the read setting data, the flow control valve 2
The opening of No. 8 is set to the opening corresponding to the local cleaning. Thereby, the water flowing into the water distribution unit 14 from the water distribution pipe 27 flows into the purification / sterilization unit 33 at a predetermined flow rate, where the purification processing (Step S24) and the sterilization processing (Step S26) for the water are performed. Will be able to In addition, when the selected function is the toilet flush or the hand wash, the control is performed in the same manner as described above.

In step S28, the subsequent control steps are distinguished depending on whether the selected function is toilet flush. That is, if the selected function is a toilet flush, it is not particularly necessary to perform a strict check on the quality of the purified and sterilized water, so that the water is supplied to a predetermined location (ie, the low tank 44) as it is (step 44). S32). On the other hand, when the selected function is local washing or hand washing, it is preferable to check the quality of the water even if the water is purified and sterilized. Therefore, based on the output signal of the turbidity sensor 36 or 37, the control unit 18 determines that the water quality of the water after the purification / sterilization processing has reached a predetermined level (that is, a water quality level that can be used for local washing and hand washing). Is determined (step S3).
0). If it is determined that the water quality has reached the level, the water is directly supplied to a predetermined location (that is, the hot water washer 43 or the spout 45) (step S3).
2). On the other hand, if it is determined that the water quality has not reached the level, the water supply is stopped (step S27).

If it is determined in step S20 that the water pressure of the selected water is smaller than the predetermined value, it means that the water cannot be supplied at a sufficient flow rate with the water alone. In such a case, the subsequent control steps are as follows.

First, in step S21, the control unit 1
8 determines whether or not to mix clean water and medium water based on the setting data. For example, if the setting data includes an instruction "Always use only clean water", it means that the user does not want to mix clean water and clean water. Is stopped without mixing (step S27). On the other hand, if the setting data includes a content permitting mixing of clean water and clean water, the control unit 18 mixes the two based on the water pressure of clean water and clean water obtained earlier. It is determined whether the required flow rate can be secured (step S23).

If it is determined in step S23 that the required flow rate can be secured, the control unit 18
The required flow rate is secured by introducing water different from the selected water into the mixing unit 12 by appropriately controlling 3 (step S25). That is, if the selected water is clean water, the insufficient flow of the clean water is caused to flow into the mixing unit 12, and if the selected water is the clean water, the insufficient flow of the clean water is reduced. The mixture flows into the mixing unit 12. When the necessary flow rate of water is secured, the control process proceeds to step S22.

On the other hand, if it is determined in step S23 that the required flow rate cannot be ensured even when the clean water and the clean water flow at the maximum flow rates, the water supply is stopped without mixing the clean water and the clean water (step S23). S27).

As shown in FIG. 2, the water supply apparatus 10 is provided with separate purifying / sterilizing units 33 to 35 for each functional unit of the toilet apparatus 42. This makes it possible to differentiate the configuration of the purification / sterilization unit according to the corresponding functional unit. For example, the purification / sterilization unit 33 corresponding to the local cleaning function may have a small flow rate of the water that can be treated by the unit, but it is desirable that the degree of purification and sterilization be sufficiently high.
On the other hand, the purification / sterilization unit 34 corresponding to the toilet flushing function
Although the degree of purification and sterilization may be slightly reduced, it is preferable that the flow rate that can be processed is large. As described above, by using a plurality of purification / sterilization units each having a configuration corresponding to the function, it is possible to more appropriately control the water quality.

FIG. 4 is a schematic configuration diagram of a water circuit and a control system of a water supply device 60 which is a modification of the water supply device 10 of FIG.
In the water supply device 60, in the water distribution unit 14, purification /
By disposing the sterilizing unit 61 and the turbidity sensor 62 upstream of the switching valve 63, the flow path configuration is simplified. Even with such a water supply device 60, control according to the flowchart of FIG. 3 can be substantially performed. By simplifying the flow path configuration in this way, the manufacturing cost of the device can be reduced.

In FIG. 1, the mixing unit 12 of the water supply device 10 is embedded in the wall 49 of the toilet room.
Mixing unit 12 need not necessarily be embedded in wall 49. For example, as in a water supply device 70 shown in FIG.
Of course, it is also possible to adopt a configuration of being housed in the second casing 50.

Another feature of the water supply device 70 is that the mixing unit 12 is connected to the water supply pipe 47 and the intermediate water supply pipe 48.
The flow path for introducing water is configured using a common pipe 71 and a common water tap 72 commonly used for both introduction of clean water and introduction of intermediate water.

FIGS. 6A to 6C are cross-sectional views showing various examples of the structure of the common pipe 71. FIG. First, the common pipe 71A shown in FIG. 6A has a small diameter pipe 71A inside a large diameter pipe 71a.
b to form a two-layer flow path in the pipe 71a, and clean water in one flow path (for example, in the pipe 71b) and medium water in the other (between the pipe 71a and the pipe 71b). It is made to be able to flow. The shared pipe 71B shown in FIG. 6B has a configuration in which two flow paths are formed inside the pipe 71c by providing a partition 71d inside the pipe 71c. The common pipe 71C in FIG. 6C is a large-diameter pipe 71e.
Are two small-diameter tubes 71f and 71g inserted therein.

The common water tap 72 has a structure corresponding to the structure of the common pipe 71. For example, FIG. 7 is a longitudinal sectional view (a) and a front view (b) viewed from the side showing an example of a common water tap 72 used together with the common pipe 71A shown in FIG. 6 (a). The common faucet 72 has an L-shaped outer member 73 having a water inlet 73a and a water outlet 73b at both ends.
And an L-shaped inner member 74 having a water inlet 74a and a water outlet 74b at both ends. Water outlet 74 of inner member 74
“b” is disposed inside the water outlet 73 b of the outer member 73, thereby forming a two-layer water outlet corresponding to the two-layer flow path of the common pipe 71 </ b> A. On the other hand, the water inlet 74a of the inner member penetrates the wall surface of the outer member 73 and protrudes downward. For example, the intermediate water introduction pipe 22 and the clean water introduction pipe 21
Are connected, and the common pipe 71A is connected to the water outlets 73b and 74b. Thus, apparently, both the clean water and the clean water are mixed separately using a single pipe.
2 can be introduced.

Although the embodiment of the present invention has been described with reference to the drawings, the embodiment is not limited to this and can be variously modified within the spirit and scope of the present invention.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a water supply device which is a first embodiment of a toilet water supply system according to the present invention.

FIG. 2 is a schematic configuration diagram of a water circuit and a control system of the water supply device.

FIG. 3 is a flowchart showing an example of a water supply control process in the water supply device.

FIG. 4 is a schematic configuration diagram of a water circuit and a control system of another water supply device which is a modification of the water supply device of FIG. 2;

FIG. 5 is a schematic configuration diagram showing another water supply device that is a modified example of the water supply device of FIG. 1;

FIGS. 6A to 6C are cross-sectional views showing various examples of the structure of a common pipe.

FIGS. 7A and 7B are a longitudinal sectional view and a front view, respectively, showing a common hydrant used together with the common pipe of FIG.

[Explanation of symbols]

 10, 60, 70 ... toilet water supply device 12 ... mixing unit 14 ... water distribution unit 16 ... operation unit 18 ... control unit 21 ... clean water introduction pipe 22 ... medium water introduction pipe 23 ... mixing valve 24, 25 ... pressure sensor 26, 36, 37, 63 ... turbidity sensor 29, 61 ... switching valve 33-35, 62 ... purification and sterilization unit 41 ... toilet bowl 42 ... toilet device 43 ... warm water washer 44 ... low tank 45 ... spout 47 ... water supply pipe 48 … Water supply pipe 71… Common pipe 72… Common hydrant

Claims (8)

[Claims] 1. A water mixing means for introducing a plurality of water from a plurality of water sources for supplying water having different water qualities to generate mixed water, and mixing the mixed water generated by the water mixing means in a toilet device. And a water distribution means for sending the water to one or more water supply points. 2. The toilet water supply system according to claim 1, wherein the water mixing means is configured to change a mixing ratio of the plurality of waters. 3. The toilet water supply system according to claim 1, further comprising a purifying means for purifying the mixed water. 4. The toilet water supply system according to claim 3, further comprising a cleanliness detector for detecting the cleanliness of the mixed water flowing into the water supply point in the toilet device. 5. The toilet water supply according to claim 1, further comprising an electrolytic water generating means for electrolyzing the mixed water to generate water containing a bactericidal substance or ions. system. 6. The toilet water supply system according to claim 1, wherein a mixing ratio of the plurality of waters is changed according to selection of a water supply point. 7. The toilet water supply system according to claim 1, further comprising a flow rate adjusting means for adjusting a flow rate of the mixed water according to a selection of a water supply point. 8. The toilet according to claim 1, wherein a plurality of flow paths for guiding a plurality of water from the water supply source to the water mixing means are constituted by one pipe. Water supply system.