JP3559352B2 - Safety device for sanitary washing equipment - Google Patents

Description

[0001]
[Industrial applications]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary washing device for washing a local part of a human body, and more particularly, to a safety device for satisfactorily preventing a hot water storage tank for storing hot water for washing from being damaged by a change in internal pressure.
[0002]
[Prior art]
Conventionally, a sanitary washing device is configured to heat a hot water stored in a hot water storage tank at an appropriate temperature using tap water pressure and jet hot water stored therein from an ejection nozzle to wash a local part of a human body. A typical structure is disclosed, for example, in Japanese Patent Application Laid-Open No. 2-210125. The structure of the sanitary washing device disclosed in the above publication regulates the pressure reducing valve communicating with the water supply port, the solenoid valve installed downstream thereof, and the amount of hot water spouted downstream of the solenoid valve. A flow control valve, a safety valve having a water drainage port, a sealed hot water storage tank that communicates with the safety valve to heat tap water to a constant temperature and store hot water, and a cleaning nozzle for injecting hot water in the hot water storage tank by tap water pressure, for example. , And is schematically configured.
[0003]
In use, the pressure (water pressure) of tap water flowing into the water supply port varies from 0.5 to 9 kgf / cm2 depending on the region or the form of the house. Pressure is adjusted to a predetermined set pressure so that washing water can be ejected with the ejected ejection pressure, and then, the opening and closing of the solenoid valve and the supply amount of washing water to the washing nozzle by the flow control valve are adjusted and set, and hot water is stored from the washing nozzle. The cleaning water stored at an appropriate temperature in the tank is always sprayed at a stable jet amount so as not to cause discomfort to the user, thereby performing local cleaning.
[0004]
[Problems to be solved by the invention]
However, in the sanitary washing device having the above structure, for example, when the pressure reducing valve for adjusting the water pressure becomes malfunctioning due to a failure or the like, when the solenoid valve is opened, the water pressure directly acts on the closed hot water storage tank. In this case, unnecessary tap water pressure may be applied to the hot water storage tank by forcibly discharging part of the tap water supplied to the hot water storage tank from the water drain of the safety valve. Thus, the situation that the hot water storage tank is damaged is avoided beforehand.
[0005]
However, when tap water is drained from the drainage port of the safety valve, the drained tap water accommodates the sanitary washing device because the safety valve is often installed at the end of the casing of the sanitary washing device because of the safety valve. When the tap water was drained from the central part of the casing into the toilet bowl through the drainage channel formed on the bottom of the casing, but the tap water was discharged from the safety valve via the solenoid valve due to the malfunction of the pressure reducing valve as described above. Since tap water overflows into the casing due to considerable tap pressure, a part of the overflowed tap water is scattered to the electric components arranged around the safety valve, or There was a problem that water was soaked.
[0006]
When tap water overflowing from the safety valve is drained well into the toilet, the safety valve is formed as a valve unit at the end of the casing together with a pressure reducing valve, a solenoid valve, and a flow control valve due to water flow. Because of this configuration, a special drainage channel is provided on the bottom of the casing to drain the overflow water smoothly, or a plastic pipe is connected to the drainage port of the safety valve to allow the overflow water to enter the toilet. For example, there is a problem that a means for avoiding damage to electric components due to overflow water is required.
[0007]
Further, the safety valve for discharging the overflow water is integrally formed with a pressure reducing valve, a solenoid valve, and the like as a valve unit. Therefore, the valve unit itself becomes larger with an increase in the number of parts, and the overflow water is discharged. The sanitary washing device may cause malfunction of the pressure reducing valve, e.g., a drainage channel for draining water must be provided in the casing, or a safety valve and a drainage port on the casing side for draining overflow water must be directly connected with a vinyl pipe. As a countermeasure, a special valve such as a safety valve and a vinyl pipe must be specially prepared. Therefore, the configuration is complicated and the size is increased, so that there is a problem that the number of assembling steps and the manufacturing cost are increased.
[0008]
In view of the various problems described above, the present invention provides a hot water storage tank for heating tap water (washing water) at an appropriate temperature by providing a simple safety valve in close proximity to a water drainage plug with a cover body common to the water drainage plug. It is formed almost integrally with the hot water storage tank by draining the appropriate temperature water in the hot water storage tank flowing out of the safety valve by using the drainage passage of the drain plug without damaging the hot water storage tank. An object of the present invention is to provide a safety device for a sanitary washing device that can easily release applied water pressure.
[0009]
[Means for Solving the Problems]
To achieve the above object, the safety device of the sanitary washing device according to the present invention,
In an apparatus configured to be attached to an upper surface of a toilet body and configured to supply cleaning water heated to an appropriate temperature in a hot water storage tank to a functional unit for local cleaning,
The water escape hole provided in the lower part of the hot water storage tank and in the vicinity of the excretion recess of the toilet body is closed by the valve body, and the valve is opened when the water pressure in the hot water storage tank reaches a set value or more. It is characterized by having a safety valve.
The safety device is
In addition to the above-mentioned safety valve, a drain plug is provided near the safety valve so that a drain hole having a diameter larger than the water release hole is opened and closed by an on-off valve body.
[0010]
[Action]
According to the present invention, as described above, a water pressure relief hole is provided in the vicinity of the drain plug of the hot water storage tank, and when the water pressure in the hot water storage tank rises to a predetermined value or more in the water pressure relief hole, the valve body is pushed. The hot water storage tank is provided with a safety valve that opens the water pressure relief hole and drains the appropriate temperature water in the hot water storage tank to the drainage channel of the drain plug that communicates with the toilet bowl. Since damage to the hot water storage tank is avoided beforehand, adverse effects caused by damage to the hot water storage tank can be reliably removed. Moreover, by providing the safety valve in the hot water storage tank, when an abnormal water pressure is applied to the hot water storage tank, the appropriate temperature water in the hot water storage tank is immediately discharged into the toilet using the drainage passage of the drain plug, and the hot water is stored. Since the abnormal water pressure applied to the tank can be released, it is convenient because a special discharge path for discharging the appropriate temperature water is not particularly required.
[0011]
In addition, the water pressure relief hole of the safety valve and the water drainage hole of the water drainage plug can be closed with the same cover so that the valve body can be easily opened and closed. There is no need to provide a safety valve provided in the valve unit for protection, and a drainage means consisting of a vinyl pipe that leads the tap water overflowing from the safety valve to the toilet, or a special drainage channel, which is simple and simple. Since a safety device for protecting the hot water storage tank from abnormal water pressure can be provided in the configuration, there is an advantage that the sanitary washing device can be economically manufactured with a simple configuration.
[0012]
In addition, since the water pressure relief hole used in the safety valve of the present invention is provided close to the water drain hole of the water drain plug, when abnormal water pressure is applied to the hot water storage tank to drain the proper temperature water in the tank, The appropriate temperature water can be immediately drained into the toilet bowl by using the drainage channel of the drain hole, and the appropriate temperature water discharged from the water pressure relief hole may adversely affect electric components close to the hot water storage tank, The problem that the inside is flooded can be reliably solved.
[0013]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a plan view showing a state in which a sanitary washing device provided with the safety device of the present invention is installed in a toilet body. In FIG. 1, reference numeral 1 denotes a sanitary washing device which is installed by using a rear portion of an upper surface of a toilet body 2, and the sanitary washing device 1 combines an upper casing (only a part is shown in FIG. 1) 3a and a lower casing 3b. The lower casing 3b is fixedly installed on the toilet body 2 with the internal space provided. A toilet seat and a toilet lid (not shown) are attached to the upper casing 3a so as to be freely opened and closed. The functional unit of the sanitary washing device 1 includes, for example, a controller (not shown) in an operation panel 3c which is formed to protrude forward on a side of the upper casing 3a and which is disposed on the operation panel 3c for sanitation, drying, stopping, and the like. The operation unit 4 such as an operation switch for operating the functional unit of the cleaning device 1 is manually operated to be operated.
[0014]
Next, the inside of the sanitary washing device 1 will be described. Reference numeral 5 shown in FIG. 1 indicates a valve unit disposed between a water supply source (not shown) on the side of the upper casing 3a (left side in FIG. 1) and the hot water storage tank 6, and the valve unit 5 is a water supply source (not shown) A water supply port) and a pressure reducing valve 5a for adjusting water pressure, which is connected via a connection hose or the like, a solenoid valve 5b for opening and closing a water channel, and a flow rate control valve (not shown). I have. As shown in FIGS. 3 and 4, the hot water storage tank 6 heats the upper and lower cases 6a and 6b, which are hollow inside, to the flanges 6c and 6d, respectively. It is configured to be able to store hot water. Reference numeral 7 denotes a water pipe for connecting the electromagnetic valve 5b and a washing water inlet (see FIG. 3) 8 at the lower part of the hot water storage tank 6 so as to supply cleaning water to the hot water storage tank 6 by opening the electromagnetic valve 5b.
[0015]
Next, the structure of the hot water storage tank 6 composed of the upper and lower cases 6a and 6b divided into two will be described with reference to FIGS. The hot water storage tank 6 is mounted on the lower casing 3b shown in FIG. 1 at a position on the left side from the center and close to the valve unit 5. The cleaning water in the hot water storage tank 6 is heated by a heater 9 and is detected by a temperature sensor 10. It is configured to detect hot water temperature and generate hot water of a predetermined temperature (hereinafter, referred to as appropriate hot water). Reference numeral 11 denotes a bimetal switch mounted on the upper part of the hot water storage tank 6 in the vicinity of the temperature sensor 10 for preventing overheating of the appropriate temperature water. Reference numeral 12 turns on the heater 9 only when the cleaning water in the hot water storage tank 6 is supplied at a constant rate. This is a float switch for preventing empty firing, which enables heating of the washing water.
[0016]
Next, reference numeral 13 shown in FIG. 3 denotes an atmosphere opening / closing valve provided at an appropriate temperature water outlet 14 above the upper case 6a of the hot water storage tank 6. The opening / closing valve 13 has an atmosphere communication port 15 communicating with the atmosphere above the opening / closing valve 13. An outlet 16 for the appropriate temperature water is opened on the side wall, and a valve body 18 which comes into contact with and separates from the valve seat 17 above the tap hole 14 is accommodated therein so as to be movable up and down. When the appropriate-temperature water flows out, the valve body 18 is pushed up by the water flow, and the air communication port 15 is closed by the valve element 18. When the appropriate-temperature water does not flow out, the valve element 18 falls by its own weight and the tap hole 14 is closed. Then, the atmosphere communication port 15 is opened.
[0017]
As shown in FIG. 1, the air communication port 15 is connected to an air supply pipe 20 whose leading end extends to a drainage channel 19 for draining drain water from the hot water storage tank 6. As shown in FIG. 1, a nozzle device 21 disposed on the right side of the hot water storage tank 6 is connected via a hot water supply pipe 22. Reference numeral 23 shown in FIG. 4 denotes a wave prevention plate which is provided in the lower case 6b of the hot water storage tank 6 by drilling a large number of through holes 23a, and the cleaning water flowing into the hot water storage tank 6 from the cleaning water inflow port 8 is supplied to the tank 6. Mixing with the appropriate-temperature water generated by waving in the inside is suppressed to prevent the temperature of the appropriate-temperature water from dropping.
[0018]
In FIG. 3, reference numeral 24 denotes a drain plug provided on the lower side of the hot water storage tank 6 on the side opposite to the washing water inlet 8 (right side in FIG. 3), and as shown in FIGS. An opening / closing valve body 26 for opening and closing a clean drain hole 25 (drainage drain), and a valve rod 27 penetrated through the opening / closing valve body 26 in a horizontal direction and fixed thereto. One end is positioned and supported by a support seat 28 protruding from the bottom surface of the lower case 6b of the hot water storage tank 6 so as to be horizontally movable, and the other end (tip) protruding outside the drain hole 25 is connected to a cover body to be described later. The opening / closing valve body 26 is brought into and out of contact with a valve seat 31 formed inside the drainage port 30 of the cover body 29 by being horizontally movably inserted into and supported by a support frame 30 a provided horizontally at the center of the drainage port 29 of the cover body 29. Let it. A spring member 32 urges the on-off valve body 26 toward the valve seat 31.
[0019]
Reference numeral 33 shown in FIG. 3 is a safety valve provided beside the drain plug 24. As shown in FIGS. 5 and 6, a small-diameter hydraulic valve opened in the hot water storage tank 6 so as to be able to communicate with the drain hole 25 is provided. A relief hole 34 and a valve body 35 that opens the hydraulic pressure relief hole 34 when the water pressure in the hot water storage tank 6 reaches a predetermined water pressure. The valve body 35 has a cover formed with the drain port 30. The other end of a compression spring 37 having one end inserted into a small-diameter drainage cylinder 36 formed integrally with the cover body 29 in parallel with the drain port 30 is engaged with the body 29, whereby The valve body 35 is always urged toward the hydraulic relief hole 34 by receiving the load of the compression spring 37, and is configured to close the hydraulic relief hole 34 with a required load. Reference numeral 38 denotes a drainage nozzle formed at the tip of the drainage cylinder 36 toward the drainage channel 19 side.
[0020]
The above-described cover body 29 includes a drain port 30 communicating with the drain hole 25 of the drain plug 24 and a drain cylinder 36 communicating with the water pressure relief hole 34 of the safety valve 33, as shown in FIG. The drain hole 25 and the drain port 30 and the hydraulic pressure relief hole 34 and the drain cylinder 36 are fixed to the hot water storage tank 6 with a screw member so as to correspond to each other. As a result, the drain plug 24 always closes the drain port 30 by the on-off valve body 26, and the safety valve 33 closes the water pressure relief hole 34 by the valve body 35. In addition, reference numeral 39 shown in FIG. 1 is an operating rod for pushing the valve rod 27 of the drain plug 24 from outside. In addition, reference numeral 40 shown in FIG. 1 denotes a hot air device for drying a local portion after cleaning.
[0021]
Next, the operation will be described. First, when the local washing is not performed, the washing water in the hot water storage tank 6 is heated by the heater 9 and the temperature sensor 10 detects the temperature of the hot water. Is controlled as follows. At this time, the atmosphere opening / closing valve 13 has the valve body 18 lowered to close the tap hole 14 above the hot water storage tank 6 and, conversely, to open the atmosphere communication port 15. For this reason, since the air communication port 15 and the outlet 16 of the appropriate temperature water are open to the atmosphere, the residual water in the nozzle device 21 can be satisfactorily discharged, and the residual water in the nozzle device 21 is discharged from the hot water supply pipe. In the case where the residual water flows into the atmosphere on-off valve 13 by flowing backward, the residual water does not flow backward into the hot water storage tank 6 because the tap hole 14 is closed by the valve body 18 as shown in FIG. The air is discharged from the air communication port 15 to the drain 19 through the air supply pipe 20 and flows down into the toilet body 2.
[0022]
Next, a case of cleaning a local portion will be described. From among the operating means 4 provided with the respective operation switches for operating the functional units arranged on the operation panel 3c, for example, the cleaning switch is manually operated to open the solenoid valve 5b, and the water pressure in the hot water storage tank 6 is increased to a predetermined value. The decompressed washing water flows in through the inlet 8. Due to the inflow of the washing water, the appropriate temperature water in the hot water storage tank 6 is pushed up by an amount corresponding to the inflow of the washing water, the valve body 18 is moved up to close the air communication port 15 and at the same time the tap hole 14 is opened, and The water is passed from the outlet 16 of the atmospheric on-off valve 13 to the nozzle device 21 via the hot water supply pipe 22, and the pressure of the appropriate temperature water, which is passed through the cleaning nozzle (not shown) in the nozzle device 21, for example, the nozzle device 21. The cleaning device is made to protrude into the toilet body 2 by using water, and the appropriate temperature water passed through the nozzle device 21 is jetted from the cleaning nozzle to perform local cleaning.
[0023]
After the local washing, the stop switch is operated from the operating means 4 to close the solenoid valve 5b of the valve unit 5. Since the washing water does not flow into the hot water storage tank 6 due to the closing of the solenoid valve 5b, the valve element 18 of the atmosphere opening / closing valve 13 descends to close the tap hole 14, and conversely, opens the atmosphere communication port 15. For this reason, the air that has flowed in from the air supply pipe 20 flows into the nozzle device 21 through the outlet 16 of the appropriate temperature water, and the appropriate temperature water remaining in the nozzle device 21 is removed by the disappearance of the water pressure due to the stoppage of the water supply. The water is discharged into the toilet bowl main body 2 from the ejection port of the cleaning nozzle (not shown) which is released and released into the nozzle device 21. If the residual water flows back into the air opening / closing valve 13 during the retreat of the washing nozzle, the backflow water passes through the air supply pipe 20 → the drain 19 because the tap hole 14 is closed by the valve element 18. The water is drained into the toilet body 2.
[0024]
When the local part is being washed, if the pressure reducing valve 5a of the valve unit 5 malfunctions due to a failure and the water pressure of the tap water cannot be controlled, the water pressure of the tap water is directly applied to the hot water storage tank 6, and When the appropriate temperature water is injected from the nozzle device 21, the injection amount also increases rapidly. As described above, when the water pressure in the hot water storage tank 6 reaches or exceeds a predetermined pressure, the valve body 35 of the safety valve 33 provided in the lower case 6b of the hot water storage tank 6 Pushed to the left in FIG. 7 against the force, the hydraulic pressure relief hole 34 is opened. For this reason, the washing water that has flowed into the hot water storage tank 6 passes through the water pressure relief hole 34 → the drainage cylinder 36 → the drainage nozzle 38 in FIG. 7 and flows down to the drainage channel 19 as shown in FIG. You.
[0025]
As described above, when the valve body 35 of the safety valve 33 retreats due to the water pressure in the hot water storage tank 6, the valve body 35 partially protrudes in the circumferential direction of the opening edge located on the valve body 35 side of the drainage cylinder 36. As a result, the cleaning water flowing out of the water pressure relief hole 34 is received from the periphery of the valve main body 35 and the rear end of the valve main body 35 as shown by an arrow in FIG. Since the safety valve 33 is configured to flow into the drainage pipe 36 through the gap 42 formed between the hot water storage tank 6 and the safety valve 33, the cleaning water flows out of the drainage pipe 36 due to abnormal water pressure in the hot water storage tank 6. It is possible to reliably avoid a situation in which the splashing water scatters and adheres to the electric components constituting the functional unit of the sanitary washing device 1 and adversely affects the electric components.
[0026]
Further, since the drainage nozzle 38 formed at the tip of the drainage cylinder 36 is formed to have a smaller diameter than the drainage cylinder 36, it is possible to suppress the spouting of the washing water from the drainage cylinder 36, whereby the washing is performed. The adverse effects caused by the rapid injection of water can be avoided well. Moreover, when a water pressure equal to or higher than a preset value is applied to the hot water storage tank 6, a part of the abnormal water pressure can be evacuated to the outside by the safety valve 33, and the appropriate temperature water in the hot water storage tank 6 is discharged by the nozzle. The abnormal pressure of the hot water storage tank 6 is shared with the safety valve 33 in order to rapidly discharge the water to the device 21 side and to discharge the appropriate temperature water from the cleaning nozzle (not shown) of the nozzle device 21 in a higher pressure than in the normal state so as to discharge the appropriate temperature water. Can be discharged reliably.
[0027]
As described above, when the abnormal water pressure is applied to the hot water storage tank 6, most of the abnormal water pressure can be satisfactorily discharged from the safety valve 33 and the washing nozzle, and the injection pressure of the appropriate temperature water from the nozzle device 21 increases. The user of the sanitary washing device 1 notices an abnormal state due to the spouting of the appropriate temperature water at a spout pressure stronger than normal, and immediately turns on the stop switch from the operating means 4 to close the solenoid valve 5b. Accordingly, it is possible to prevent the washing water from flowing into the hot water storage tank 6, so that it is possible to favorably prevent the abnormal pressure from acting on the hot water storage tank 6.
[0028]
As a result, when an abnormal water pressure is applied to the hot water storage tank 6, the safety valve 33 is formed so as to satisfactorily discharge the washing water within a range where the hot water storage tank 6 is not damaged and reduce the abnormal water pressure in the tank 6. Therefore, breakage of the hot water storage tank 6 can be satisfactorily prevented, and waste of unnecessary washing out of cleaning water can be reliably avoided.
[0029]
Next, when draining water from the inside of the hot water storage tank 6 as necessary, that is, in the case of preventing freezing of the hot water storage tank 6 in severe cold or when not in use for a long time, the operating rod 39 shown in FIG. As shown in FIG. 9, the valve rod 27 is rotated (counterclockwise in FIG. 1) toward the valve rod 27 side of the drain plug 24 with the support portion a of the operating rod 39 as a fulcrum via a connecting rod (not shown). Then, it is pushed inward of the hot water storage tank 6 against the load of the spring member 32. When the valve stem 27 is pushed, the on-off valve body 26 separates from the valve seat 31 to open the drain port 30. For this reason, the drainage hole 25 of the hot water storage tank 6 and the drainage port 30 of the cover body 29 communicate with each other except for the support frame 30a, so that water in the hot water storage tank 6 passes through the drainage hole 30 through the drainage hole 25. It flows down to the drainage channel 19 and is drained to the toilet body 2.
[0030]
At this time, since the air opening / closing valve 13 has the valve element 18 closing the tap hole 14 above the hot water storage tank 6, the air does not flow into the hot water storage tank 6, but the drain port 30 formed in the cover body 29 is closed. By increasing the size in the height direction to a size close to the same diameter as the drain hole 25 of the hot water storage tank 6, a difference occurs in the head pressure in the vertical direction of the drain port 30. As a result, the air flows into the hot water storage tank 6 from the upper side of the drain port 30, so that the water in the hot water storage tank 6 can be drained well from the drain port 30 even when the air on-off valve 13 is closed. .
[0031]
When the drainage of the hot water storage tank 6 is completed, the external force applied to the valve rod 27 disappears by returning the operating rod 39 to the original position, so that the valve rod 27 is moved to the spring member 32 as shown in FIG. 8 is pushed to the left side in FIG. 8 to bring the on-off valve body 26 into contact with the valve seat 31 to close the drain port 30. As described above, the operating rod 39 for operating the valve rod 27 of the drain plug 24 may be operated, for example, by removing the upper casing 3a of the sanitary washing device 1, or by connecting a connecting rod (not shown) to the operating rod 39. The driving rod 39 may be operated by operating the connecting rod from outside the lower casing 3b.
[0032]
【The invention's effect】
According to the present invention, a safety valve which is opened by the water pressure when the water pressure in the hot water storage tank reaches a set value or more is attached to a lower part of the hot water storage tank for storing hot water for local washing, so that the hot water storage tank is provided inside thereof. In this case, even if abnormal water pressure is applied, the safety valve can satisfactorily reduce the abnormal water pressure, so that the hot water storage tank can be well protected from damage due to the abnormal water pressure.
[0033]
Moreover, the safety valve employs a structure in which a water pressure relief hole opened in the lower part of the hot water storage tank is opened and closed by the valve body, and the safety valve itself is provided close to the toilet body, so that abnormal water pressure is applied to the hot water storage tank. When drained, the water in the hot water storage tank can be drained directly into the toilet body without forming a special drainage channel as before, or using drainage means such as vinyl pipes. In combination with the simplification of the structure, the water in the hot water storage tank can be drained without adversely affecting the electrical components of the sanitary washing device. Can be manufactured.
[0034]
Further, in the present invention, a drain valve is provided adjacent to a safety valve for releasing abnormal water pressure in the hot water storage tank, and the drain valve connects a common drainage channel close to the toilet body with water drained from the safety valve. Utilization can be used to drain water from the hot water storage tank. Moreover, since the water in the hot water storage tank can be drained at a position close to the toilet body as well as the drainage from the safety valve, the water drained into the toilet body at the time of drainage scatters and adversely affects the electrical components of the sanitary washing device. There is an advantage that the adverse effects such as giving can be reliably avoided.
[Brief description of the drawings]
FIG. 1 is a plan view showing the inside of a sanitary washing device provided with the safety device of the present invention.
FIG. 2 is a plan view of a hot water storage tank to which the safety device of the present invention is attached.
FIG. 3 is a front view showing a part of the hot water storage tank cut away.
FIG. 4 is a vertical sectional side view of a main part of the hot water storage tank.
FIG. 5 is a cross-sectional view showing the safety device of the present invention mounted on a hot water storage tank and a drain plug attached to the safety device.
FIG. 6 is a longitudinal sectional view showing a state before operation of the safety device of the present invention.
FIG. 7 is a longitudinal sectional view showing an operation state of the safety device.
FIG. 8 is a longitudinal sectional view showing a state before operation of the drain plug.
FIG. 9 is a longitudinal sectional view showing an operation state of the drain plug.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sanitary washing device 2 Toilet bowl main body 6 Hot water storage tank 21 Nozzle device 24 Drain tap 25 Drain hole 26 Opening / closing valve body 29 Cover body 33 Safety valve 34 Water pressure relief hole 35 Valve body

Claims (2)

In an apparatus configured to be attached to an upper surface of a toilet body and configured to supply cleaning water heated to an appropriate temperature in a hot water storage tank to a functional unit for local cleaning,
The water escape hole provided in the lower part of the hot water storage tank and in the vicinity of the toilet recess of the toilet body is closed by the valve body, and the valve is opened when the water pressure in the hot water storage tank reaches a set value or more. A safety device for a sanitary washing device, comprising a safety valve. In an apparatus configured to be attached to an upper surface of a toilet body and configured to supply cleaning water heated to an appropriate temperature in a hot water storage tank to a functional unit for local cleaning,
The water escape hole provided in the lower part of the hot water storage tank and in the vicinity of the toilet recess of the toilet body is closed by the valve body, and the valve is opened when the water pressure in the hot water storage tank reaches a set value or more. A safety device for a sanitary washing device, comprising: a safety valve; and a water drainage plug provided in the vicinity of the safety valve to open and close a drainage hole having a diameter larger than that of the water release hole by an on-off valve body.

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