JP2004263422A - Toilet device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide s toilet device capable of surely cleaning dirt on the outside surface of the front end section of a washing nozzle and ensuring a sanitary state. <P>SOLUTION: In the toilet device equipped with a warm water flushing device having washing nozzles 17 and 18 jetting flushing water to local parts of the human body, an instantaneous heating type heat exchanger 12 is connected to a water supply source through a first cut-off solenoid valve 6, the secondary side of the heat exchanger 12 is branched into a local part washing water course 20 supplied inside of the washing nozzles 17 and 18 through a pump 14 and a selector valve 15 and a nozzle washing water course 21 for washing the outsides of the washing nozzles 17 and 18 through a second cut-off solenoid valve 22, and flushing water at a high temperature passes through a nozzle washing water course 21 to wash the outsides of the washing nozzles 17 and 18. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a toilet device, and more particularly to a toilet device provided with a hot water cleaning device having a cleaning function of a cleaning nozzle.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a toilet apparatus equipped with a hot water washing device has been known. As the hot water washing device, washing water is stored in a washing water tank having a built-in heater at a desired temperature at all times. It is known that the washing water is supplied from a washing water tank to a washing nozzle by a pump or a water supply pressure, and the washing water is jetted from the washing nozzle to a local part of a human body.
[0003]
Further, in such a hot water cleaning device, there is also known a device in which cleaning water having a higher temperature than that at the time of local cleaning is caused to flow into the cleaning nozzle to clean the cleaning nozzle (for example, see Patent Document 1). ).
[0004]
There is also known a hot water cleaning apparatus in which cleaning water is supplied to the outer surface of the tip of the cleaning nozzle so that dirt and the like attached to the outer surface of the tip of the cleaning nozzle can be reliably cleaned (for example, Patent Document 2). And Patent Document 3.).
[0005]
An example of a hot water cleaning device that can clean the outer surface of the tip of the cleaning nozzle will be described with reference to FIGS. The hot water cleaning device 40 includes a nozzle unit 41 having a bottom cleaning nozzle 42, a bidet cleaning nozzle 43, and a cleaning nozzle 44, and a bottom cleaning port, a bidet cleaning port, and a cleaning port. A water flow control switching valve 45 having a four-way port for supplying washing water to the water, a hot water tank 46 configured to store a predetermined amount of hot water and controllable to a predetermined water temperature by a built-in heater 46a, and a water terminal 47. A water supply means 50 for supplying water to the hot water tank 46 via a flow valve 48 and an electromagnetic opening / closing valve 49 is provided. When washing or cleaning, the electromagnetic opening / closing valve 49 of the water supply means 50 is opened to supply water into the hot water tank 46. By doing so, the hot water in the hot water tank 46 is pushed out toward the nozzle unit 41. The water supply means 50 is provided with a relief valve 51 for discharging surplus water having a difference between the flow rate at the constant flow rate valve 48 and the flow rate spouted from the nozzle to the toilet.
[0006]
As shown in FIGS. 5 and 6, the cleaning nozzle 44 is provided with a cleaning water passage 53 for cleaning at the top of a cover 52 having a substantially inverted U-shaped cross section, which covers the tips of the cleaning nozzles 42 and 43 from above. The cleaning jet holes 54a, 54b are opened at positions facing the tips of the nozzles 42, 43. The cleaning water passage 53 is connected to a cleaning port of the flow rate control switching valve 45 via a joint 55 and a cleaning hose 56 attached to one end opening thereof. Thus, when the flow control switching valve 45 is switched to the cleaning port with the electromagnetic on-off valve 49 opened, the cleaning water is spouted from the cleaning jet holes 54a and 54b toward the outer surface of the tip of the cleaning nozzle 42 to perform cleaning. Done.
[0007]
[Patent Document 1]
JP-A-10-311078
[Patent Document 2]
Japanese Patent Application Laid-Open No. 2000-120145
[Patent Document 3]
JP 2001-152518 A
[Problems to be solved by the invention]
However, in the hot water cleaning apparatus disclosed in Patent Document 1, since the cleaning nozzle is a system in which high-temperature cleaning water is passed through the cleaning nozzle, a mode in which normal operation is prohibited while high-temperature water is used is provided. If there is an abnormality, there is a problem that high-temperature water may be injected into the human body. Also, if dirt or the like adheres to the outer surface of the tip of the cleaning nozzle, the dirt is difficult to clean even if high-temperature cleaning water flows out from the cleaning nozzle, and the dirt is left unattended and unsanitary. There's a problem.
[0011]
On the other hand, in the warm water cleaning devices disclosed in Patent Documents 2 and 3, since cleaning water is jetted to the outer surfaces of the tip portions of the cleaning nozzles 42 and 43, dirt and the like adhere to the outer surface of the tip portions of the cleaning nozzles. However, since the temperature of the washing water for cleaning the local area is relatively low, dirt sticks and it may not be easy to clean.In this case, the remaining part becomes a core and the dirt accumulates and solidifies, making cleaning impossible. There is a problem that the state may be possible and the sanitary state may not be completely maintained.
[0012]
The present invention has been made in view of the above-described conventional problems, and has as its object to provide a toilet device that can surely clean dirt on the outer surface of the distal end portion of a cleaning nozzle and can ensure a sanitary condition.
[0013]
[Means for Solving the Problems]
The toilet device of the present invention is a toilet device provided with a hot water washing device having a washing nozzle for ejecting washing water to a local part of a human body, wherein the instantaneous heating type heat exchanger is provided to a water supply source via a first water stop electromagnetic valve. , And the secondary side of the heat exchanger is branched into a local washing channel for supplying the inside of the washing nozzle, and a nozzle washing channel for washing the outer surface of the washing nozzle via the second water stop solenoid valve. The high-temperature washing water can be passed through the nozzle washing water passage to wash the outer surface of the washing nozzle, so that the washing nozzle can be reliably cleaned to ensure hygiene and a common heat exchange. Since high-temperature washing water for cleaning the outer surface of the washing nozzle is also generated by the vessel, no special heating device is required, and high-temperature washing water is not passed through pumps and switching valves provided in the local washing water passage. High heat resistance is required , It can be constructed at low cost.
[0014]
In addition, if seating detection means for detecting that the human body is sitting on the toilet seat is provided, and control means for prohibiting water from flowing into the nozzle washing channel during seating detection is provided, the washing water having a high temperature in the seated state is provided. Is safe because there is no water supply and there is no splash of high-temperature water.
[0015]
Further, a nozzle cleaning switch for instructing nozzle cleaning is provided, and when the nozzle cleaning switch is turned on, the first water shutoff electromagnetic valve and the second water shutoff electromagnetic valve are opened, and the temperature detected by the temperature detecting means provided on the heat exchanger is reduced. If a control means that turns on the heater of the heat exchanger until the temperature reaches the predetermined temperature is provided, the nozzle cleaning can always be performed with the cleaning water at the predetermined temperature when the nozzle cleaning switch is turned on. Can be secured.
[0016]
Further, a nozzle cleaning switch for instructing nozzle cleaning is provided, and when the nozzle cleaning switch is turned on, the first water shutoff electromagnetic valve and the second water shutoff electromagnetic valve are opened, and the temperature detected by the temperature detecting means provided on the heat exchanger is reduced. By providing a control means for controlling the heater of the heat exchanger to a predetermined temperature and maintaining the state for a predetermined time, the cleaning water at a predetermined temperature is reliably supplied for a predetermined time to perform nozzle cleaning, so that dirt is further reduced. Sanitary conditions can be ensured by reliable removal.
[0017]
In addition, when an orifice is provided in the relief passage on the primary side of the heat exchanger, the amount of water flowing in the nozzle cleaning water passage can be secured at a predetermined flow rate.
[0018]
In addition, when a flow rate regulating valve is provided in the primary side relief passage of the heat exchanger, the amount of water flowing through the nozzle cleaning water path can be adjusted by the opening degree of the flow rate regulating valve, and accordingly the temperature of the cleaning water can be adjusted. It is possible and suitable.
[0019]
In addition, if control means for controlling the opening degree of the flow control valve in accordance with the temperature detected by the temperature detection means provided in the heat exchanger and controlling the temperature of the wash water in a stepwise manner is provided, the wash water used for nozzle cleaning is provided. The temperature can be adjusted step by step, and the nozzle can be cleaned with cleaning water at an appropriate temperature according to the state of dirt, which is convenient.
[0020]
Further, if high temperature detecting means for detecting a high temperature equal to or higher than a predetermined temperature is provided in the nozzle cleaning water channel and control means for closing the first water shutoff electromagnetic valve at the time of detecting the high temperature is provided, temperature detection in the heat exchanger does not operate properly. When high-temperature water of a predetermined temperature or higher is generated, the first water stop solenoid valve is closed and the supply of water to the heat exchanger is stopped. It is. It should be noted that the configuration is such that when no more than a certain amount of water does not flow, the power supply to the heater of the heat exchanger is stopped.
[0021]
In addition, if a safety valve mechanism that opens when the temperature of the local cleaning water channel becomes equal to or higher than a predetermined temperature is provided in place of the second water shutoff electromagnetic valve, high temperature water does not flow through the local cleaning water channel, so that high temperature water flows into the human body. Such a danger can be eliminated, and it is not necessary to impart heat resistance to the local cleaning channel, so that the configuration can be made at a low cost.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the toilet apparatus of the present invention will be described with reference to FIGS.
[0023]
In FIG. 1 showing the configuration of the hot water cleaning device in the toilet device of the present embodiment, a water supply pipe 2 to the hot water cleaning device is branched at an angle faucet 1a from a water supply line 1 for toilet flushing connected to a water supply source. , Strainer 3, check valve 4, constant flow valve 5, and is connected to first water stop solenoid valve 6. The constant flow valve 5 is set such that when the first water stop solenoid valve 6 is opened, a fixed amount of washing water of about 1000 cc / min is supplied. A branch provided with an air release valve 7 for preventing generation of a negative pressure and a relief passage 8 having an orifice 9 for discharging excess water into the toilet and reducing the flow rate from the first water stop solenoid valve 6. It is connected to an instantaneous heating type heat exchanger 12 having a built-in heater 13 via a passage 10 and a flow rate detecting means 11. The cleaning water heated to a predetermined temperature by the heat exchanger 12 is supplied to a nozzle unit 16 by a pump 14 via a flow rate control switching valve 15. The flow rate control switching valve 15 has an inlet port 15a, a bottom cleaning port 15b, its jetting form adjustment port 15c, and a bidet cleaning port 15d, and controls the rotation position of a valve body (not shown) by a motor 15e. By doing so, switching of each of the ports 15a to 15d and flow rate adjustment are performed.
[0024]
Between the heat exchanger 12 and the pump 14, a local washing water passage 20 which reaches the nozzle unit 16 via the pump 14 and the flow control switching valve 15, and a nozzle which reaches the nozzle unit 16 via the second electromagnetic solenoid valve 22. It is branched to a washing channel 21.
[0025]
The nozzle unit 16 includes a posterior washing nozzle 17, a bidet washing nozzle 18, and a cleaning nozzle 19 for cleaning an outer surface of a tip portion of each of the washing nozzles 17, 18 provided with a washing water ejection port. The washing water is supplied to the posterior washing nozzle 17 from the posterior washing port 15b and its jetting form adjusting port 15c, and the bidet washing nozzle 18 is supplied with the washing water from the bidet washing port 15d. The cleaning nozzle 19 is supplied with high-temperature water supplied from the nozzle cleaning water channel 21.
[0026]
The operation of the first water shutoff electromagnetic valve 6, the heater 13 of the heat exchanger 12, the pump 14, the flow control switching valve 15, and the second water shutoff electromagnetic valve 22 is controlled by the control unit 23. The control unit 23 includes an operation signal of a nozzle cleaning switch 24 for instructing nozzle cleaning, a flow rate detecting unit 11, a seating sensor 25 for detecting that a human body is seated on the toilet seat, and a temperature detecting unit provided in the heat exchanger 12. A detection signal is input from the high-temperature detecting means 27 disposed at the inlet of the nozzle 26 and the nozzle cleaning water passage 21 so as to detect a high temperature equal to or higher than a predetermined temperature.
[0027]
In the nozzle unit 16, as shown in FIG. 2, a washing water passage 30 is provided at an upper portion near the washing nozzles 17 and 18, and an inlet 31 at an upper end thereof is connected to a nozzle hose 21 with a connecting hose (not shown). The outlet 32 is provided at the lower end so as to point toward the tip of the cleaning nozzles 17 and 18. As shown in FIGS. 2 and 3, the outlet 32 faces the upper end of a cover 33 disposed so as to surround the distal ends of the cleaning nozzles 17 and 18. Thus, a cleaning nozzle 19 is configured.
[0028]
In FIG. 2, reference numeral 34 denotes an operation mechanism for adjusting the cleaning position after the cleaning nozzles 17 and 18 are hydraulically moved during the cleaning operation, and is disposed below the cleaning nozzles 17 and 18. A flow control switching valve 15 is also provided at an appropriate position of the operating mechanism 34, and the ports 15b to 15d are connected to the cleaning nozzles 17 and 18 by water supply hoses (not shown) as appropriate.
[0029]
Next, the main operation will be described. When the cleaning switch (not shown) is pressed after the stool is completed, the cleaning condition is set appropriately by the setting means (not shown) based on the operation program. The control unit 23 controls the operation of the first water stop solenoid valve 6, the heater 13 of the heat exchanger 12, the pump 14, and the motor 15e of the flow rate control switching valve 15, and the desired temperature from the washing nozzle 17 or 18 toward the local area. Then, a desired amount of washing water is ejected to perform washing.
[0030]
On the other hand, when cleaning is performed because dirt has adhered to the outer surface of the tip of the cleaning nozzle 17 or 18 and the nozzle is cleaned, when the nozzle cleaning switch 24 is operated, the control unit 23 uses the detection signal from the seating sensor 25 to detect the position on the toilet seat. After confirming that no person is sitting on the first water-stop solenoid valve 6 and the second water-stop solenoid valve 22, the first water-stop solenoid valve 6 and the second water-stop solenoid valve 22 are opened. During the seating detection, these operations and subsequent operations are prohibited. When the water shutoff solenoid valves 6 and 22 are opened, about 700 to 800 cc / min of water is released to the escape passage 8 because the orifice 9 restricts the water, and the remaining about 200 to 300 cc / min of water is removed by the heat exchanger. Water is supplied to the nozzle washing water passage 21 through the nozzle cleaning water passage 12. Further, the control unit 23 subsequently turns on the heater 13 of the heat exchanger 12 until the temperature detected by the temperature detecting means 26 provided in the heat exchanger 12 reaches a predetermined temperature of, for example, about 60 to 70 ° C. As a result, high-temperature cleaning water of about 60 to 70 ° C. is supplied to the nozzle cleaning water channel 21, and the high-temperature cleaning water flows out of the cleaning nozzle 19 toward the outer surfaces of the distal ends of the cleaning nozzles 16 and 17. The cleaning water is guided and sprayed efficiently without scattering to the surroundings, and the dirt on the outer surfaces of the distal ends of the cleaning nozzles 16 and 17 is reliably cleaned, and a sanitary condition can be ensured.
[0031]
As described above, in addition to turning on the heater 13 until the temperature detected by the temperature detecting means 26 reaches a predetermined temperature, the heater 13 is controlled so that the temperature detected by the temperature detecting means 26 becomes a predetermined temperature. The state may be controlled so as to be continued for a predetermined time, so that cleaning water at a predetermined temperature is reliably supplied for a predetermined time to perform nozzle cleaning, so that dirt is more reliably removed and a sanitary state is secured. can do.
[0032]
In addition, the temperature of the nozzle cleaning water passage 21 is monitored by the high temperature detecting means 27. When a high temperature of, for example, 80 to 90 ° C. or more is detected, the control unit 23 closes the first water stop solenoid valve 6. As a result, if the temperature detecting means 26 provided in the heat exchanger 12 does not operate properly and high-temperature water of a predetermined temperature or more is generated in the heat exchanger 12, the water supply to the heat exchanger 12 is stopped. Is done. As a result, the stoppage of the water supply is detected by the flow rate detecting means 11, and the control section 23 immediately stops energizing the heater 13. Therefore, such high-temperature water is not supplied to the cleaning nozzles 17 and 18, and safety is ensured, and the heat exchanger 12 is protected.
[0033]
As described above, according to the present embodiment, high-temperature cleaning water is passed through the nozzle cleaning water channel 21 to clean the outer surfaces of the cleaning nozzles 17 and 18, so that the dirt on the cleaning nozzles 17 and 18 can be surely cleaned. And a high-temperature washing water for washing the outer surfaces of the washing nozzles 17 and 18 is generated by the common heat exchanger 12, so that a dedicated heating device is not required and a local washing water passage is provided. Since high-temperature washing water does not pass through the pump 14 and the flow control switching valve 15 disposed in the apparatus 20, high heat resistance is not required and the apparatus can be constructed at a low cost.
[0034]
In the above embodiment, the control unit 22 controls opening and closing of the second water stop electromagnetic valve 22 disposed near the branch portion of the nozzle cleaning water channel 21 to control the flow of the cleaning water to the nozzle cleaning water channel 21. In place of the second water stop solenoid valve 22, a safety valve of a bimetal type or the like which is activated by the temperature of the local cleaning water channel 20 at a position near the branch portion of the nozzle cleaning water channel 21 is provided. When the temperature of the water channel 20 becomes equal to or higher than a predetermined temperature, the valve may be opened to allow the cleaning water to flow through the nozzle cleaning water channel 21. Then, since high-temperature water does not flow through the local cleaning water channel 20, it is possible to eliminate the risk of high-temperature water being applied to the human body, and it is not necessary to provide the local cleaning water channel 20 with heat resistance. it can.
[0035]
Further, in the above embodiment, the example in which the orifice 9 of the fixed throttle is disposed in the escape passage 8 is shown. However, the flow control valve 28 is disposed in place of the orifice 9 and the control unit 23 is provided with a nozzle for cleaning the nozzle. By inputting a setting signal from the temperature selecting means 29 for selectively setting the temperature of the washing water and controlling the opening degree of the flow control valve 28 according to the selected and set temperature and the temperature detected by the temperature detecting means 26, the nozzle cleaning is performed. The amount of water flowing through the water channel 21 may be adjusted to adjust the temperature of the cleaning water, so that the temperature of the cleaning water at the time of nozzle cleaning may be adjusted stepwise.
[0036]
In the above-described embodiment, the flow control switching valve 15 has four ports 15a to 15d. However, one more port is added, and the port is connected to the cleaning nozzle 19. The washing water may be allowed to flow out of this port until the previous water temperature is stabilized or after the washing, and the inside and outside surfaces of the washing nozzles 17 and 18 may be washed with the washing water before or after the local washing operation. good.
[0037]
【The invention's effect】
According to the toilet apparatus of the present invention, since the nozzle cleaning channel for cleaning the outer surface of the cleaning nozzle is branched on the secondary side of the instantaneous heat exchanger, high-temperature cleaning water generated by the heat exchanger is cleaned by the nozzle. The outer surface of the cleaning nozzle can be cleaned by passing it through a water channel, the dirt on the cleaning nozzle can be surely cleaned and the sanitary condition can be ensured, and the high-temperature cleaning of the outer surface of the cleaning nozzle by a common heat exchanger can be performed. Since cleaning water is also generated, there is no need for a dedicated heating device, and since high-temperature cleaning water is not passed through the pumps and switching valves installed in the local cleaning water channel, high heat resistance is not required and the configuration is inexpensive. it can.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a toilet device according to an embodiment of the present invention.
FIG. 2 is a vertical side view of a nozzle unit in the toilet device of the embodiment.
FIG. 3 is a sectional view taken along line AA of FIG. 2;
FIG. 4 is a schematic configuration diagram of a conventional toilet apparatus.
FIG. 5 is a side view of a nozzle unit in the conventional toilet apparatus.
6 is a sectional view taken along the line BB of FIG. 5;
[Explanation of symbols]
6 First water stop solenoid valve 8 Escape passage 9 Orifice 12 Heat exchanger 14 Pump 15 Flow control switching valve 17 Butt washing nozzle 18 Bidet washing nozzle 20 Local washing water path 21 Nozzle washing water path 22 Second water stopping electromagnetic valve 23 Control Part 24 nozzle cleaning switch 25 seat sensor 26 temperature detecting means 27 high temperature detecting means 28 flow rate regulating valve

Claims (9)

In a toilet apparatus provided with a hot water washing device having a washing nozzle for ejecting washing water to a local part of a human body, an instantaneous heating type heat exchanger is connected to a water supply source via a first water stop solenoid valve, and this heat exchange is performed. A toilet apparatus characterized in that a secondary side of a vessel is branched into a local washing channel for supplying the inside of the washing nozzle and a nozzle washing channel for washing the outer surface of the washing nozzle via a second water stop solenoid valve. 2. The toilet apparatus according to claim 1, further comprising: seat detection means for detecting that a human body is sitting on the toilet seat; and control means for prohibiting passage of water to the nozzle washing channel during detection of the seat. A nozzle cleaning switch for instructing nozzle cleaning is provided. When the nozzle cleaning switch is turned on, the first water shutoff solenoid valve and the second water shutoff solenoid valve are opened, and the temperature detected by the temperature detecting means provided on the heat exchanger is a predetermined temperature. The toilet device according to claim 1 or 2, further comprising control means for turning on the heater of the heat exchanger until the temperature of the toilet is reached. A nozzle cleaning switch for instructing nozzle cleaning is provided. When the nozzle cleaning switch is turned on, the first water shutoff solenoid valve and the second water shutoff solenoid valve are opened, and the temperature detected by the temperature detecting means provided on the heat exchanger is a predetermined temperature. The toilet apparatus according to claim 1 or 2, further comprising a control means for controlling a heater of the heat exchanger so as to maintain the state, and maintaining the state for a predetermined time. The toilet device according to any one of claims 1 to 4, wherein an orifice is provided in an escape passage on a primary side of the heat exchanger. The toilet device according to any one of claims 1 to 4, wherein a flow control valve is provided in a primary side relief passage of the heat exchanger. 7. The control device according to claim 6, further comprising control means for controlling the degree of opening of the flow control valve in accordance with the temperature detected by the temperature detection means provided in the heat exchanger, and for controlling the temperature of the washing water in a stepwise manner. Toilet equipment. The high temperature detecting means for detecting a high temperature equal to or higher than a predetermined temperature is provided in the nozzle washing water channel, and a control means for closing the first water shutoff electromagnetic valve when the high temperature is detected is provided. Toilet equipment. 2. The toilet apparatus according to claim 1, further comprising a safety valve mechanism that opens when the temperature of the local cleaning water passage becomes equal to or higher than a predetermined temperature, instead of the second water stop electromagnetic valve.

Images