JP2013104206A - Flushing water supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flushing water supply system which can suppress a sharp increase in cost and deterioration of a sanitary environment of a toilet bowl while enabling reduction of clean water consumption.SOLUTION: A flushing water supply system 1 includes: water supply pipes 14, 15 connected to a Western-style toilet bowl 3; a clean water supply part 16; and a supply part 17 of water in a bathtub. The clean water supply part 16 includes a clean water pipe 20, opening/closing valves 21, 22, and vacuum breakers 23, 24. The opening/closing valves 21, 22 and the vacuum breakers 23, 24 are provided between the clean water pipe 20 and the water supply pipes 14, 15, and the vacuum breakers 23, 24 are disposed closer to the Western-style toilet bowl 3 side than the opening/closing valves 21, 22. The supply part 17 of water in a bathtub is connected to the water supply pipes 14, 15 and supplies water in a bathtub 2 to the Western-style toilet bowl 3 through the water supply pipes 14, 15 and the like. The supply part 17 of water in a bathtub is connected closer to the Western-style toilet bowl 3 side of the water supply pipes 14, 15 than the opening/closing valves 21, 22 and the vacuum breakers 23, 24 of the clean water supply part 16.

Description

  The present invention relates to a cleaning water supply system for supplying cleaning water to a toilet.

  2. Description of the Related Art Conventionally, as a cleaning water supply system for supplying cleaning water to a toilet, a cleaning water supply system for supplying remaining hot water and rainwater after bathing in a bathtub (see, for example, Patent Document 1 and Patent Document 2) has been used. The washing water supply system shown in these Patent Documents 1 and 2 includes a water storage tank that temporarily stores the remaining hot water and rainwater in the bathtub, a pipe that connects the water storage tank and the toilet, the pipe, and the like. And a pump for feeding water in the water storage tank to the toilet.

  In the washing water supply system, the remaining hot water, rain water, etc. in the water storage tank are sent to the toilet by a pump, so that the remaining hot water, rain water, etc. are supplied to the toilet.

Japanese Utility Model Publication No. 61-155475 JP 2000-104302 A

  By the way, the cleaning water supply system described in Patent Document 1 and Patent Document 2 can reduce the amount of clean water used by using remaining hot water and rain water after bathing as cleaning water. It is said. However, these conventional cleaning water supply systems temporarily store the remaining hot water and rain water after bathing as cleaning water in the water storage tank. For this reason, the remaining hot water and rainwater used as washing water are stored in the water storage tank for a long time, and there is a possibility that germs and the like are propagated in the water storage tank. For this reason, in particular, in the washing water supply system shown in Patent Document 2, the inside of the water tank is periodically washed with clean water in order to suppress the propagation of germs and the like in the water tank.

  On the other hand, in the washing water supply system described in Patent Document 2, if the inside of the water storage tank is not regularly washed with clean water, various germs and the like propagate in the washing water, thereby deteriorating the sanitary environment of the toilet. .

  The present invention has been made in view of the above circumstances, and provides a flush water supply system that can suppress the deterioration of the sanitary environment of a toilet while allowing the amount of clean water to be reduced. The purpose is to do.

  To achieve the above object, a flush water supply system according to the present invention is a flush water supply system for supplying flush water to a toilet bowl, and is connected to the toilet bowl and feeds the flush water to the toilet bowl. And a water supply section connected to the water supply pipe and supplying clean water as the wash water to the toilet through the water supply pipe, and water in the bathtub connected to the water supply pipe and as the wash water A water supply section in the bathtub for supplying water to the toilet through the water supply pipe, and the water supply section in the bathtub is connected to the toilet side of the water supply pipe rather than the water supply section. It is characterized by.

  In the washing water supply system, since the water supply section in the bathtub for supplying water in the bathtub to the toilet bowl is provided, the remaining hot water after bathing in the bathtub can be used as flush water for the toilet bowl. In addition, the washing water supply system includes a water supply section in the bathtub and a water supply section that supplies the water to the toilet, so that when the remaining hot water is accumulated in the bathtub, Water in the bathtub can be used, and when remaining hot water or the like is not accumulated in the bathtub, clean water can be used as cleaning water. Further, since the water supply section in the bathtub is connected to the toilet side of the water supply pipe rather than the water supply section, the water supply section in the bathtub supplies the water in the bathtub as wash water directly to the toilet as wash water. be able to. Therefore, it is possible to suppress the accumulation of water in the bathtub such as the remaining hot water used as the washing water for a long period of time, and it is possible to suppress the propagation of various germs. Therefore, it is possible to reduce the amount of clean water used without cleaning the water storage tank, while suppressing an increase in cost and deterioration of the sanitary environment of the toilet.

  In the washing water supply system, the water supply portion is provided between the water supply pipe to which the water supply is supplied, the water supply pipe and the water supply pipe, and a flow path extending from the water supply pipe to the water supply pipe. It is preferable that the water supply part in a bathtub is connected with the said toilet side of the said water supply pipe rather than the said on-off valve. In this flush water supply system, the water supply section in the bathtub is connected to the toilet side of the water supply pipe rather than the open / close valve that can open and close the flow path between the water supply pipe and the water supply pipe. Thus, it is possible to reliably separate the water supply pipe from the water supply section and the water supply section in the bathtub.

  In the flush water supply system, the water supply section includes an open valve provided between the water supply pipe and the water supply pipe and closer to the toilet than the on-off valve, and the water supply section in the bathtub is It is preferable that the opening valve is connected to the toilet side of the water supply pipe. In this flush water supply system, the water supply part in the bathtub is connected to the toilet side of the water supply pipe further than the open valve provided on the toilet side of the on-off valve. Even if the pressure becomes negative, the water in the bathtub can be prevented from flowing back to the water pipe etc. beyond the open valve.

  In the flush water supply system, the clean water supply unit stores the clean water and has a wash tank in which the feed pipe is connected to a drain outlet at the bottom, a valve body that can freely open and close the drain outlet, and the wash tank. And an operation member that opens and closes the drainage port when the valve body is displaced with respect to the washing tank, and the water supply section in the bathtub is located closer to the water supply pipe than the drainage port. It is preferable to connect to the toilet side. In this washing water supply system, the water supply unit in the bathtub is connected to the toilet side of the water supply pipe rather than the drain of the washing tank of the water supply unit. The upper water pipe and the in-tub water supply section can be reliably separated.

  In the water discharge device according to the present invention, the water supply section in the bathtub can supply the water in the bathtub as the wash water directly to the toilet as the wash water, so that it is possible to reduce the amount of clean water used. , Soaring costs and deterioration of the sanitary environment of the toilet can be suppressed.

FIG. 1 is an explanatory diagram illustrating a configuration of a cleaning water supply system according to the first embodiment. FIG. 2 is a flowchart illustrating an example of processing of the control device of the cleaning water supply system according to the first embodiment. FIG. 3 is a time chart illustrating an example of the operation of the cleaning water supply system according to the first embodiment. FIG. 4 is an explanatory diagram illustrating a configuration of a cleaning water supply system according to the second embodiment. FIG. 5 is a time chart illustrating an example of the operation of the cleaning water supply system according to the second embodiment.

Hereinafter, an embodiment of a water discharge device according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.
[Embodiment 1]

  FIG. 1 is an explanatory diagram illustrating a configuration of a cleaning water supply system according to the first embodiment, FIG. 2 is a flowchart illustrating an example of processing of a control device of the cleaning water supply system according to the first embodiment, and FIG. 3 is an embodiment. 2 is a time chart showing an example of the operation of the cleaning water supply system according to 1.

  The wash water / water supply system 1 of the embodiment shown in FIGS. 1 and 2 and the like typically supplies water such as remaining hot water in a bathtub 2 installed in a house or the like to a Western-style toilet 3 as a flush toilet. In this system, water is supplied as washing water, and filth is discharged from the Western-style toilet 3.

  As shown in FIG. 1, the Western-style toilet 3 is integrally provided with a toilet bowl 4, a rim 5, and a trap portion 7 that communicates the toilet bowl 4 and the drain outlet 6. The rim 5 is provided on the inner surface of the upper edge of the toilet bowl 4.

  The trap portion 7 is a passage having one end opened above the bottom of the toilet bowl 4 and the other end communicating with the drain port 6. The trap portion 7 is opened above the bottom of the toilet bowl 4 and gradually rises upward from one end to the other end, and the descending portion communicates with the drain port 6 downward from the rise region portion 7a. The western portion of the toilet bowl 3 is a so-called siphon wash-out toilet. In addition, a jet hole 8 is provided on the bottom surface of the toilet bowl 4 facing one end of the trap portion 7 to allow the washing water to flow toward the ascending region portion 7a of the trap portion 7.

  As shown in FIG. 1, the bathtub 2 is provided with a jet bath unit 9. The jet bath unit 9 includes a suction port 10 opened at the lower end of the bathtub 2, a spout 11 opened at the upper end of the bathtub 2, a connecting pipe 12 connecting the suction port 10 and the spout 11, and a connecting pipe. 12 is provided. The pump 13 ejects the water in the bathtub 2 sucked from the suction port 10 from the spout 11. The pump 13 is switched on and off by an operation device for the jet bath unit 9 (not shown) and a control device 19 described later.

  As shown in FIG. 1, the cleaning water supply system 1 includes a jet water supply pipe 14 as a water supply pipe, a rim water supply pipe 15 as a water supply pipe, a water supply water supply unit 16, and an in-tub water supply unit 17. The switch device 18 and the control device 19 are provided.

  One end of the jet water supply pipe 14 is connected to the jet hole 8 of the western-style toilet 3 and is connected to the western-style toilet 3. The jet water supply pipe 14 guides the cleaning water supplied from the water supply unit 16 and the in-tub water supply unit 17 to the jet hole 8 to supply the western style toilet 3 with water. One end of the rim water supply pipe 15 is connected to the rim 5 of the western style toilet 3 and is connected to the western style toilet 3. The rim water supply pipe 15 guides the cleaning water supplied from the water supply section 16 and the in-tub water supply section 17 to the inner surface of the rim 5 and supplies it to the western style toilet 3.

  The water supply section 16 includes a water pipe 20, a rim on-off valve 21 as an on-off valve, a jet on-off valve 22 as an on-off valve, a rim vacuum breaker 23 as an open valve, and a jet as an open valve. The vacuum breaker 24 for rims, the rim side connection piping 25, and the jet side connection piping 26 are provided.

  The water supply pipe 20 is supplied with water from the water supply. The water pipe 20 branches into two in the middle, one end of which is connected to the rim on-off valve 21 and the other end is connected to the jet on-off valve 22. Thus, the water supply pipe 20 supplies water from the water supply to the western-style toilet 3 through the on-off valves 21 and 22, the connecting pipes 25 and 26, the vacuum breakers 23 and 24, and the water supply pipes 14 and 15 as wash water. To do.

  The rim on-off valve 21 is provided between the water pipe 20 and the rim water supply pipe 15 by connecting the water pipe 20 and one end of the rim-side connecting pipe 25. The rim opening / closing valve 21 opens and closes the flow path of the clean water from the clean water pipe 20 to the rim water supply pipe 15 via the rim side connection pipe 25.

  The jet on / off valve 22 is provided between the water supply pipe 20 and the jet water supply pipe 14 by connecting the water supply pipe 20 and one end of the jet side connection pipe 26. The jet on / off valve 22 opens and closes a flow path of clean water from the clean water pipe 20 to the jet water supply pipe 14 via the jet side connection pipe 26.

  The rim vacuum breaker 23 is connected to the other end of the rim-side connecting pipe 25 and the other end of the rim water supply pipe 15. Thus, the rim vacuum breaker 23 is provided between the upper water pipe 20 and the rim water supply pipe 15 and closer to the western style toilet 3 than the rim on-off valve 21. In the rim vacuum breaker 23, even if the pressure of clean water in the rim side connection pipe 25 is lower than the pressure of water in the rim water supply pipe 15, that is, the rim side connection pipe 25 and the water supply pipe 20 side have negative pressure. However, the water in the rim water supply pipe 15 is prevented from flowing back to the rim side connection pipe 25 or the water pipe 20 side.

  In the jet vacuum breaker 24, the other end of the jet side connection pipe 26 and the other end of the jet water supply pipe 14 are connected. Thus, the jet vacuum breaker 24 is provided between the upper water pipe 20 and the jet water supply pipe 14 and closer to the western style toilet 3 than the jet opening / closing valve 22. In the jet vacuum breaker 24, even if the pressure of clean water in the jet side connection pipe 26 is lower than the pressure of water in the jet water supply pipe 14, that is, the jet side connection pipe 26 and the water supply pipe 20 side have negative pressure. However, the water in the jet water supply pipe 14 is prevented from flowing back to the jet side connecting pipe 26 or the water pipe 20 side.

  One end of the rim-side connection pipe 25 is connected to the rim open / close valve 21 and the other end is connected to the rim vacuum breaker 23. One end of the jet side connection pipe 26 is connected to the jet on / off valve 22, and the other end is connected to the jet vacuum breaker 24.

  When the rim on / off valve 21 is opened and the jet on / off valve 22 is closed, the water supply section 16 supplies water from the water pipe 20 via the rim-side connecting pipe 25, the rim vacuum breaker 23, and the rim water supply pipe 15. Then, water is supplied from the inner surface of the rim 5 of the western-style toilet 3 in the circumferential direction of the western-style toilet 3. The drinking water supply unit 16 causes the drinking water to flow in the circumferential direction on the inner surface of the toilet bowl 4 of the western-style toilet 3, and cleans the inner surface of the toilet bowl 4 of the western-style toilet 3 with the drinking water.

  Further, when the jet on / off valve 22 is opened and the rim on / off valve 21 is closed, the water supply section 16 supplies water from the water pipe 20 to the jet side connection pipe 26, the jet vacuum breaker 24, and the jet water supply pipe 14. Then, clean water is ejected from the jet hole 8 of the western-style toilet 3 toward the trap portion 7. The water supply unit 16 forcibly causes a siphon action in the trap unit 7, and discharges the filth in the toilet bowl 4 of the Western-style toilet 3 from the drain port 6 using the water.

  Thus, the water supply unit 16 is connected to the water supply pipes 14 and 15 to supply water as cleaning water to the western style toilet 3 through the water supply pipes 14 and 15. Thus, the western style toilet bowl 3 of the present embodiment is a so-called tankless western style toilet bowl in which the water from the water supply is not once stored in the tank or the like.

  The water supply section 17 in the bathtub includes the pump 13 of the jet bath unit 9, the first switching valve 27, the pipe 28, the flow meter 29 as the flow rate detecting means, the second switching valve 30, and the rim side water supply. A pipe 31 and a jet-side water supply pipe 32 are provided.

  The first switching valve 27 is provided in the connection pipe 12 of the jet bath unit 9 and is provided closer to the ejection port 11 than the pump 13. In addition, one end of a pipe 28 is connected to the first switching valve 27. The first switching valve 27 is switchable between a state in which the connection pipe 12 and the pipe 28 are communicated with each other and a state in which the connection pipe 12 and the ejection port 11 are in communication. Thus, the first switching valve 27 supplies the water in the bathtub 2 sucked by the pump 13 from the suction port 10 through the pipe 28, the second switching valve 30, and the water supply pipes 31 and 32, that is, the western style. The state of supplying water to the toilet 3 and the state of jetting into the bathtub 2 from the spout 11 can be switched freely. That is, the first switching valve 27 can be switched between a state in which the water in the bathtub 2 is guided to the Western-style toilet 3 and a state in which the water is jetted into the bathtub 2 again.

  The pipe 28 has one end connected to the first switching valve 27 and the other end connected to the second switching valve 30. The flow meter 29 is provided at the center of the pipe 28 and includes an impeller rotated by water flowing in the pipe 28 to detect the flow rate of water in the pipe 28. The flow meter 29 outputs a signal indicating the detected flow rate of water in the pipe 28 toward the control device 19.

  The second switching valve 30 is connected to the other end of the pipe 28 and to one end of the rim-side water supply pipe 31 and the other end of the jet-side water supply pipe 32. The second switching valve 30 communicates the pipe 28 and the rim-side water supply pipe 31 without communicating the pipe 28 and the jet-side water supply pipe 32, and connects the pipe 28 and the jet-side water supply pipe 32 with the pipe 28. And the state where the rim-side water supply pipe 31 is not in communication are freely switchable.

  One end of the rim side water supply pipe 31 is connected to the second switching valve 30, and the other end is connected to the central portion of the rim water supply pipe 15. The jet-side water supply pipe 32 has one end connected to the second switching valve 30 and the other end connected to the central portion of the jet water supply pipe 14. In this way, the water supply pipes 31 and 32 are connected to the central portions of the water supply pipes 14 and 15, so that the water supply section 17 in the bathtub is provided by the on-off valves 21 and 22 and the vacuum breakers 23 and 24 of the water supply section 16. Are also connected to the Western style toilet 3 side of the water supply pipes 14 and 15.

  In the bathtub water supply section 17, when the first switching valve 27 communicates the connection pipe 12 and the pipe 28, and the second switching valve 30 communicates the pipe 28 and the rim-side water supply pipe 31, the bathtub 2 The water inside is guided to the rim water supply pipe 15, that is, the inner surface of the rim 5 of the western style toilet 3 through the connecting pipe 12, the pipe 28 and the rim side water supply pipe 31 of the jet bath unit 9. Further, in the bathtub water supply section 17, when the first switching valve 27 communicates the connection pipe 12 and the pipe 28, and the second switching valve 30 communicates the pipe 28 and the jet-side water supply pipe 32, The water in the bathtub 2 is guided to the jet water supply pipe 14, that is, the jet hole 8 of the western style toilet 3 through the connection pipe 12, the pipe 28, and the jet side water supply pipe 32 of the jet bath unit 9. Thus, the in-tub water supply unit 17 is connected to the water supply pipes 14 and 15 to supply water in the bathtub 2 as washing water to the western style toilet 3 through the water supply pipes 14 and 15 and the like.

  The switch device 18 is provided on the side of the toilet bowl 4 of the western-style toilet 3 or the inner wall surface of the house, and is used to start an operation of washing the interior of the western-style toilet 3 with washing water.

  The control device 19 is an arithmetic device including a RAM, a ROM, a CPU, an input / output port, and the like (not shown). At least the flow meter 29 and the switch device 18 are connected to the input port of the control device 19. At least on-off valves 21 and 22, vacuum breakers 23 and 24, switching valves 27 and 30, and a pump 13 are connected to the output port of the control device 19. When the control device 19 receives a signal for starting the cleaning operation from the switch device 18, the control device 19 uses the water supply unit 16 based on information indicating the flow rate of water flowing in the pipe 28 detected by the flow meter 29. The water supply to the western-style toilet 3 and the water supply to the western-style toilet 3 by the water supply part 17 in the bathtub are switched to control the entire flush water supply system 1.

  The control device 19 repeatedly executes the flowchart shown in FIG. 2 as an example. In step S1, the control device 19 determines whether or not a signal for starting the cleaning operation is input from the switch device 18, and if not input, the control device 19 repeats step S1, and if it is input, proceeds to step S2. . Thus, the control device 19 repeats step S1 until a signal for starting the cleaning operation is input from the switch device 18.

  In step S <b> 2, the control device 19 switches the first switching valve 27 to a state where the connection pipe 12 and the pipe 28 are communicated, and switches the second switching valve 30 to a state where the pipe 28 and the rim-side water supply pipe 31 are communicated. Then, the pump 13 is driven to suck water in the bathtub 2 through the suction port 10. And the control apparatus 19 supplies the water in the bathtub 2 from the inner surface of the rim | limb 5 to the circumferential direction of the western style toilet 3, ie, wash | cleans the inner surface of the toilet bowl 4 of the western style toilet 3 with the water in the bathtub 2. FIG. In step S <b> 2, the control device 19 cleans the inner surface of the toilet bowl 4 on the rim 5 of the Western-style toilet 3 based on a signal indicating the flow rate of water in the pipe 28 detected by the flow meter 29. When it is determined that the water in the bathtub 2 as a sufficient amount of washing water has been supplied, the second switching valve 30 is switched to a state in which the pipe 28 and the jet-side water supply pipe 32 are communicated, and the water in the bathtub 2 is jetted. Water is supplied to the trap portion 7 of the western-style toilet 3 from the hole 8, that is, filth in the toilet bowl 4 of the western-style toilet 3 is discharged from the trap portion 7 through the drain port 6. Then, the control device 19 proceeds to step S3.

  In step S3, the control device 19 determines whether or not the flow meter 29 detects the flow of water in the pipe 28 based on a signal indicating the flow rate of water in the pipe 28 detected by the flow meter 29, that is, the bathtub 2. It is determined whether or not the water is supplied to the western style toilet 3, and if the flow of water is detected, the process proceeds to step S4. If the flow of water is not detected, the process proceeds to step S5. In step S 4, the control device 19 is sufficient to clean the inner surface of the toilet bowl 4 in the rim 5 based on the signal indicating the flow rate of water in the pipe 28 detected by the flow meter 29 and traps the filth. It is determined whether or not water in the bathtub 2 as a predetermined amount of washing water sufficient to be discharged from the water outlet 6 is supplied. If the predetermined amount of water in the bathtub 2 is not supplied, the process returns to step S2, and if the predetermined amount of water in the bathtub 2 is supplied, the process proceeds to step S9. Thus, the control device 19 until the predetermined amount of water in the bathtub 2 is supplied, that is, until the cleaning of the inner surface of the toilet bowl 4 by the supply of water to the rim 5 and the discharge of the filth from the trap portion 7 are completed. Steps S2 to S4 are repeated.

  In step S5, the control device 19 determines that the water in the bathtub 2 is no longer supplied to the western-style toilet 3 while repeating step S2 to step S4, and connects the first switching valve 27 to the connection pipe 12 and the spout. 11, the pump 13 is stopped, one of the on-off valves 21 and 22 is opened, the other is closed, and water from the water supply is supplied to the western style toilet 3 through the inner surface of the rim 5 or the jet hole 8. To do. If the control device 19 is switched from the water supply from the inner surface of the rim 5 to the water supply from the jet hole 8 while repeating step S2 to step S4, the control device 19 opens the jet on-off valve 22 and opens the rim on-off valve 21. When the water is not switched, the on-off valve 22 for the jet is closed and the on-off valve 21 for the rim is opened to supply the upper water to the inner surface of the rim 5. If the control device 19 has not switched from the water supply from the inner surface of the rim 5 to the water supply from the jet hole 8 while repeating the steps S2 to S4, the water supply from the inner surface of the rim 5 is completed. Then, the rim on-off valve 21 is closed and the jet on-off valve 22 is opened to supply water from the jet hole 8, and the process proceeds to step S6.

  In step S <b> 6, the control device 19 determines whether or not a predetermined amount of washing water has been supplied to the Western style toilet 3 by combining the water in the bathtub 2 and the clean water as described above. If the predetermined amount of cleaning water is not supplied, the process returns to step S5. If the predetermined amount of cleaning water is supplied, the process proceeds to step S7. Thus, the control device 19 performs the steps until the predetermined amount of cleaning water is supplied, that is, until the cleaning of the inner surface of the toilet bowl 4 by the supply of water to the rim 5 and the discharge of the filth from the trap portion 7 are completed. S5 and step S6 are repeated.

  In step S <b> 7, the control device 19 closes the jet on / off valve 22 and opens the rim on / off valve 21 to supply clean water to the inner surface of the rim 5, that is, the western-style toilet 3. Thus, the control device 19 supplies water to the inner surface of the rim 5, that is, the Western-style toilet 3 after the discharge of the filth from the trap portion 7, accumulates clean water at the bottom of the Western-style toilet 3, and so-called sealed water H. Form. And it progresses to step S8, and the control apparatus 19 determines whether the 2nd predetermined amount of clean water sufficient for the sealing water H was supplied in this step S8, and if it is not supplied, it will return to step S7 When water is supplied, the rim on-off valve 21 is also closed, and the process returns to step S1. Thus, the control device 19 repeats Steps S7 and S8 until the second predetermined amount of clean water sufficient for the sealed water H is supplied, and supplies clean water from the inner surface of the rim 5 to the Western-style toilet 3. Thus, when the water in the bathtub 2 is not supplied from the bathtub 2 to the western-style toilet 3 in the middle of the water supply to the inner surface of the rim 5 or the water supply to the jet hole 8, the control device 19 supplies the clean water. Switch.

  In step S9, the control device 19 determines that the cleaning of the inner surface of the toilet bowl 4 and the discharge of the filth from the trap part 7 have been completed by supplying water in the bathtub 2 as the cleaning water, and the first switching valve 27 is connected. The pump 13 is switched to a state where the pipe 12 and the outlet 11 are in communication with each other, the rim on-off valve 21 is opened and the jet on-off valve 22 is closed to supply water to the inner surface of the rim 5, that is, the Western-style toilet 3. To do. Thus, the control device 19 supplies water to the inner surface of the rim 5, that is, the Western-style toilet 3 after the discharge of the filth from the trap portion 7, accumulates clean water at the bottom of the Western-style toilet 3, and so-called sealed water H. Form. And it progresses to step S10, and the control apparatus 19 determines whether the 2nd predetermined amount of clean water sufficient for the sealing water H was supplied in this step S10, and if it is not supplied, it will return to step S9 When water is supplied, the rim on-off valve 21 is also closed, and the process returns to step S1. In this way, the control device 19 repeats Step S9 and Step S10 until the second predetermined amount of clean water sufficient for the sealed water H is supplied, and supplies clean water from the inner surface of the rim 5 to the Western style toilet 3. Thus, when the water supply in the bathtub 2 to the first inner surface of the rim 5 and the water supply in the bathtub 2 to the jet hole 8 are completed, the control device 19 forms the sealed water H by the clean water.

  When the switch device 18 is operated and the washing of the Western-style toilet 3 is started, the washing water / water supply system 1 of the present embodiment is the first in a state where the on-off valves 21 and 22 are closed as shown in FIG. The switching valve 27 is in a state in which the connection pipe 12 and the pipe 28 are in communication with each other, the second switching valve 30 is in communication with the pipe 28 and the rim-side water supply pipe 31, the pump 13 is driven, and the water in the bathtub 2 is drained. Water is supplied to the inner surface of the rim 5 to clean the inner surface of the toilet bowl 4. Then, when the cleaning of the inner surface of the toilet bowl 4 is completed, as shown in FIG. 3, the second switching valve 30 causes the pipe 28 and the jet-side water supply pipe 32 to communicate with each other so that the water in the bathtub 2 enters the jet hole 8. Water is supplied to forcibly produce a siphon effect, and filth is discharged from the toilet bowl 4 through the trap portion 7 through the drain port 6. When the discharge of the filth is completed, as shown in FIG. 3, the first switching valve 27 is switched to a state where the connection pipe 12 and the ejection port 11 communicate with each other, the pump 13 is stopped, and the rim on-off valve 21 is opened. Then, the clean water is supplied from the inner surface of the rim 5 to the western style toilet 3 to form a sealed water H by the clean water. In addition, the example shown in FIG. 3 has shown the case where the water in the bathtub 2 continues to be supplied to the western style toilet 3 until discharge of filth is completed.

In the washing water supply system 1 of this embodiment, since the bathtub water supply part 17 which supplies the water in the bathtub 2 to the western style toilet 3 is provided, the remaining hot water after bathing in the bathtub 2 is used for the western style toilet 3. It can be used as washing water. In addition, since the flush water supply system 1 includes the in-tub water supply section 17 and the clean water supply section 16 for supplying clean water to the Western-style toilet 3, the remaining hot water or the like is accumulated in the bathtub 2. The water in the bathtub 2 can be used as the washing water, and when the remaining hot water or the like is not accumulated in the bathtub 2, clean water can be used as the washing water. Furthermore, since the water supply part 17 in a bathtub is connected with the western style toilet 3 side of the water supply pipes 14 and 15 rather than the water supply part 16, the water supply part 17 in a bathtub is the water in the bathtub 2 as washing water. Can be directly supplied to the Western-style toilet 3 as washing water. Therefore, it is possible to suppress accumulation of water in the bathtub 2 such as remaining hot water used as cleaning water for a long period of time, and it is possible to suppress propagation of various germs. Therefore, while making it possible to reduce the amount of clean water used, it is possible to suppress an increase in cost and deterioration of the sanitary environment of the Western-style toilet 3.
Moreover, since the water supply part 16 and the water supply part 17 in a bathtub are provided separately from each other, water in the bathtub 2 such as fresh water and remaining hot water is controlled by control from the control device 19 or the like. Can be used properly.

  In the flush water supply system 1, the bathtub is located closer to the western style toilet 3 of the water supply pipes 14 and 15 than the on-off valves 21 and 22 that can open and close the flow path between the water supply pipe 20 and the water supply pipes 14 and 15 of the water supply section 16. Since the internal water supply part 17 is connected, the on-off valves 21 and 22 can reliably separate the upper water pipe 20 and the in-tub water supply part 17 from the upper water supply part 16.

  In the flush water supply system 1, the in-tub water supply section 17 is further connected to the western toilet 3 side of the water supply pipes 14 and 15 than the vacuum breakers 23 and 24 provided on the western toilet 3 side of the on-off valves 21 and 22. Therefore, even if the vacuum pipe breakers 23 and 24 cause the negative pressure in the upper water pipe 20 and the like of the water supply section 16, the water in the bathtub 2 flows back to the upper water pipe 20 and the like over the vacuum breakers 23 and 24. Can be prevented.

  In the washing water supply system 1 of the present embodiment, the western-style toilet 3 is a so-called tankless western-style toilet that does not temporarily collect the water from the water supply in a tank or the like. Since the water in the bathtub 2 as water can be directly supplied to the Western-style toilet 3 as washing water, it is possible to reliably prevent the propagation of germs in the tank and to ensure the deterioration of the sanitary environment of the Western-style toilet 3 Can be suppressed.

In the above-described embodiment, water supply to the inner surface of the rim 5, water supply to the jet hole 8, and water supply to the inner surface of the rim 5 are sequentially performed, but the present invention is not limited to this. For example, without providing the jet hole 8 in the western style toilet 3, the inner surface of the stool 4 may be washed, the filth discharged, and the sealed water H may be performed only by supplying water to the inner surface of the rim 5.
[Embodiment 2]

  Hereinafter, the cleaning water supply system 1 according to the second embodiment will be described. Note that the same parts as those of the first embodiment described above are denoted by the same reference numerals and description thereof is omitted. FIG. 4 is an explanatory diagram illustrating the configuration of the cleaning water supply system according to the second embodiment, and FIG. 5 is a time chart illustrating an example of the operation of the cleaning water supply system according to the second embodiment.

  In the second embodiment, the western style toilet 3 is supplied with cleaning water only from the inner surface of the rim 5. For this reason, in Embodiment 2, only the rim water supply pipe 15 is provided, the rim-side water supply pipe 31 is connected to the center of the rim water supply pipe 15, and the in-tub water supply section 17 is connected to the water supply section 16. The rim water supply pipe 15 is connected to the western style toilet 3 side of the drainage port 38.

  In the second embodiment, as shown in FIG. 4, the water supply unit 16 includes a cleaning tank 33, a rubber float 34 as a valve body, a lever 35 as an operation member, a ball tap mechanism 36, and a motor 37. It has. The cleaning tank 33 is a container in which water is supplied from the water supply by the water supply pipe 20 to collect the water. A drain port 38 connected to the rim water supply pipe 15 is opened at the bottom of the cleaning tank 33. The rubber float 34 is provided at the bottom of the cleaning tank 33 so as to be freely contacted and separated, and can open and close the drain port 38. The rubber float 34 closes the drain port 38 by contacting the bottom of the cleaning tank 33, and opens the drain port 38 by separating from the bottom of the cleaning tank 33.

  The lever 35 is attached to the upper part of the cleaning tank 33 so as to be rotatable about one end. The lever 35 is attached to the cleaning tank 33 so as to be freely displaceable by being attached to the cleaning tank 33 so as to be rotatable about one end. The lever 35 is connected to the rubber float 34 by a link mechanism 39 having a chain or the like. When the lever 35 is rotated around one end, that is, when it is displaced with respect to the cleaning tank 33, the rubber float 34 opens and closes the drain port 38.

  The ball tap mechanism 36 includes a floating ball 40 that floats in clean water in the cleaning tank 33, a ball tap 41 that is attached to the cleaning tank 33 and attached to the end of the water pipe 20, and opens and closes the water pipe 20, and the floating ball 40 and ball tap The arm 42 etc. which were connected with 41 are provided. When the level of clean water in the cleaning tank 33 is lowered and the floating ball 40 is lowered, the ball tap mechanism 36 swings as the floating ball 40 is lowered, and the ball tap 41 is opened to supply the clean water. Water is supplied into the cleaning tank 33. Further, the ball tap mechanism 36 closes the ball tap 41 by the floating ball 40 and the arm 42 when the level of the clean water reaches a predetermined height, and stops the water supply to the clean water cleaning tank 33.

  The motor 37 is connected to the control device 19, and rotates the operation lever 35 around the one end with respect to the cleaning tank 33 according to a command from the control device 19.

  Further, the control device 19 of the second embodiment operates in substantially the same manner as in the first embodiment described above. In the flush water supply system 1 of the present embodiment, when the switch device 18 is operated and the washing of the western style toilet 3 is started, the drain port 38 is closed by the rubber float 34, that is, the motor as shown in FIG. In a state in which 37 is turned off, the first switching valve 27 switches to a state in which the connection pipe 12 and the pipe 28 are communicated, and the pump 13 is driven to supply water in the bathtub 2 to the inner surface of the rim 5. In addition to cleaning the inner surface of the toilet bowl 4, a siphon effect is produced, and the filth is discharged from the toilet bowl 4 through the trap portion 7 through the drain port 6. When the discharge of the filth is completed, as shown in FIG. 5, the first switching valve 27 is switched to the state in which the connection pipe 12 and the ejection port 11 are communicated, the pump 13 is stopped, and the control device 19 switches the motor 37. When turned on, the drainage port 38 is opened by the rubber float 34, and the clean water is supplied from the inner surface of the rim 5 to the western style toilet 3 to form the sealed water H by the clean water. In addition, the example shown in FIG. 5 has shown the case where the water in the bathtub 2 continues to be supplied to the western style toilet 3 until discharge of filth is completed.

  In the flush water supply system 1 according to the second embodiment, as in the first embodiment described above, it is possible to reduce the amount of clean water used, while suppressing the increase in cost and the deterioration of the sanitary environment of the western-style toilet 3. be able to. In the flush water supply system 1 of the second embodiment, the in-tub water supply unit 17 is connected to the western style toilet 3 side of the rim water supply pipe 15 from the drain port 38 of the cleaning tank 33 of the water supply unit 16. Therefore, the water float 20 that opens and closes the drain port 6 can reliably separate the water supply pipe 20 and the water supply section 17 in the bathtub from the water supply section 16.

  In the embodiment described above, the sealing water H is performed with clean water, but the present invention is not limited to this. That is, in the present invention, the sealing water H may be performed with the water in the bathtub 2. In the first embodiment, the jet side water supply pipe 32 and the rim side water supply pipe 31 are connected to the jet water supply pipe 14 and the rim water supply pipe 15, respectively. What is necessary is just to connect the water supply piping 31 and 32 which guides the water in the bathtub 1 to at least one of the water supply pipes 15. Furthermore, in the above-described embodiment, the flow meter 29 is used. However, in the present invention, the water supply in the bathtub 2 is supplied using a pressure sensor that detects the water level in the bathtub 2 instead of the flow meter 29. You may switch with water supply.

  In addition, the flowchart shown in FIG. 2 and the time charts shown in FIGS. 3 and 5 of the embodiment described above are examples, and the present invention is limited to these flowcharts and time charts. is not.

  Further, in the present invention, the water in the bathtub 2 may be supplied to the western style toilet 3 using a driving source such as a pump other than the jet bath unit 9.

  In addition, the washing water supply system 1 which concerns on embodiment of this invention mentioned above is not limited to embodiment mentioned above, A various change is possible in the range described in the claim.

1 Washing water supply system 2 Bathtub 3 Western style toilet (toilet)
14 Water supply pipe for jet (water supply pipe)
15 Rim water supply pipe (water supply pipe)
16 Water supply section 17 Water supply section in bathtub 20 Water pipe 21 Open / close valve for rim (open / close valve)
22 Open / close valve for jet (open / close valve)
23 Vacuum breaker for rim (open valve)
24 Vacuum breaker for jet (open valve)
33 Washing tank 34 Rubber float (valve)
35 Lever (operating member)
38 Drainage port

Claims (4)

A cleaning water supply system for supplying cleaning water to a toilet,
A water supply pipe connected to the toilet and supplying the flush water to the toilet;
A water supply section connected to the water supply pipe and supplying water as the washing water to the toilet through the water supply pipe;
A water supply section in the bathtub connected to the water supply pipe and supplying water in the bathtub as the wash water to the toilet through the water supply pipe,
The water supply section in the bathtub is connected to the toilet side of the water supply pipe rather than the water supply section,
Wash water supply system. The water supply section is
A water pipe to which the water is supplied, and an on-off valve that is provided between the water pipe and the water pipe and opens and closes a flow path extending from the water pipe to the water pipe.
The water supply section in the bathtub is connected to the toilet side of the water supply pipe rather than the on-off valve,
The cleaning water supply system according to claim 1. The water supply section is
An open valve provided between the water supply pipe and the water supply pipe and on the toilet side of the open / close valve;
The water supply section in the bathtub is connected to the toilet side of the water supply pipe rather than the open valve,
The cleaning water supply system according to claim 2. The water supply section is
A washing tank for storing the clean water and having the water supply pipe connected to a drain outlet at the bottom;
A valve body capable of opening and closing the drain port;
An operation member that is detachably attached to the cleaning tank and that opens and closes the drain port when the valve body is displaced with respect to the cleaning tank,
The water supply section in the bathtub is connected to the toilet side of the water supply pipe rather than the drain port,
The cleaning water supply system according to claim 1.

Images