JPH11124891A - Washing device for private part of human body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To wash the tip portion of a nozzle the discharge cold water at the same time by shrinking a washing nozzle, opening the discharge passage side by a transfer valve, extending and transferring to a nozzle side, thereby discharg ing a large amount of hot water in an early stage at starting washing. SOLUTION: A pressure loss in a water passage from a transfer valve 19 to a washing nozzle 20 is made smaller than the pressure loss from the valve 19 to a nozzle 15 and to a nozzle 14. Then, the discharge is made larger than that in an ordinary use condition. In this way, remaining water in hot water tank 6 and hot water mixing valve 8 can be rapidly discharged from the nozzle 20 to the water closet. When the mixing valve 8 operates under the state described above and the discharge temperature sensor 18 is detected, the nozzle 15 is elongated. Next, the water passages of the tank 6, mixing valve 8 and nozzle 15 are all opened, and washing is started at a predetermined amount of water. At the same time, prewashing nozzle 20 is closed, and the discharge from the nozzle 20 to the water closet is stopped. At this time, warm water to be discharged is gradually increased, and the remaining water in the nozzle pipe is discharged. By doing this, the discharge at the nozzle tip portion can be performed at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for cleaning a human body part.

[0002]

2. Description of the Related Art Some human body local cleaning devices have a built-in hot / water mixing valve for storing high-temperature water and mixing water appropriately to obtain appropriate-temperature water during human body local cleaning.

FIG. 9 is an external view of a human body local cleaning apparatus incorporating a hot water mixing valve. As shown in the drawing, a main body 202 of the human body local cleaning device includes a heating toilet seat 200, a toilet lid 201, an operation panel 203, and the like. A connection hose 205 is connected between the main body 202 and the branch fitting 204, and tap water (tap water) is used for water used in the human body.

[0004] FIG. 10 is a diagram showing the operation principle of a human body local cleaning apparatus having a built-in hot water mixing valve. The conventional human body cleaning device includes a hot water tank 206, a main waterway solenoid valve 207, a bypass waterway 216, a hot and cold water mixing valve 208, solenoid valves 209, 210,
211, an orifice 212, a hot water temperature sensor 213, a bidet cleaning nozzle 214, and a bottom cleaning nozzle 215.

[0005] The hot water tank 206 has a built-in hot water heater therein and always stores high-temperature hot water of 50 to 80 degrees. This warming operation is performed by the hot water tank 206.
The temperature is constantly monitored by a hot water temperature sensor 213 provided in the inside, and when the detected temperature falls below a certain temperature, the hot water heater is automatically energized, and the detected temperature becomes above a certain temperature. At that time, the hot water heater is automatically deactivated. When tap water flows into the hot water tank 206 due to the opening operation of the main water channel solenoid valve 207, the hot water tank 206 sends out high temperature water inside to the hot / water mixing valve 208. A material that expands and contracts due to heat, such as thermowax, is sealed in the hot / water mixing valve 208. The hot water flowing into the hot / water mixing valve 208 and the hot water tank 206 are expanded by the expansion / contraction force of this material. An appropriate amount of tap water (cold water) flowing from the bypass water passage 216 without passing through is mixed, and warm water of about 40 degrees, which is optimal for ass washing, is sent to the downstream side.

The main waterway solenoid valve 207 injects or prevents tap water from flowing in or out according to a user's instruction to start or stop ass washing so that the water pressure necessary for washing a human body part can be obtained from the tap pressure. . The orifice 212
The amount of water supplied to the buttocks washing nozzle 215 and the bidet washing nozzle 214 is limited so that the portions other than the buttocks are not wet when the nozzles are extended and contracted.

The solenoid valve 209 is a bypass control valve. The solenoid valve 209 supplies a predetermined amount of hot water required for cleaning the buttocks washing nozzle 215 and the bidet washing nozzle 214. When the solenoid valve 209 is closed, the orifice 212 becomes effective and the assault washing is performed. Nozzle 2
Hot water that does not reach the bottom is supplied to the nozzle 15 and the bidet cleaning nozzle 214. The solenoid valve 210 and the solenoid valve 211 are respectively provided with a bottom cleaning nozzle 215 and a bidet cleaning nozzle 21.
4 is a water channel opening / closing valve for supplying hot water to 4.

FIGS. 11 (a) to 11 (h) show an operation sequence of the human body local cleaning apparatus using the hot and cold water mixing valve 208 for each element shown in FIG. When the ass washing is started, the main water passage solenoid valve 207 is opened and the solenoid valve 210 is opened, so that the hot water mixing valve 208 and the orifice 2 are opened.
12. The buttocks washing water channel leading to the buttocks washing nozzle 215 is half-opened, and the hot and cold water mixing valve 208 starts operating. At this time, the amount of water supplied to the posterior washing water channel is limited by the orifice 212 to a water amount that does not hit the posterior in order to prevent the water coming out of the posterior washing nozzle 215 from wetting clothes and the like when the nozzle is extended. . In this state,
When the hot water mixing valve 208 is activated and the hot water flowing out of the hot water mixing valve 208 reaches an appropriate temperature, the posterior washing nozzle 215 is extended. When the extension of the buttocks washing nozzle 215 is completed, the solenoid valve 209 is also opened, and the hot and cold water mixing valve 208 and the orifice 21 are opened.
2. The backwash water channel leading to the solenoid valve 209 and the backwash nozzle 215 is fully opened, and the backwash starts with a predetermined amount of water.

[0009]

However, in the above-described apparatus for cleaning a local part of a human body, the amount of washing water is limited to such a level that the washing water does not hit the bottom from the start of washing until the washing water reaches an appropriate temperature. Hot water tank 2
It takes time to discharge residual water and transitional residual heat on the way from 06 to the cleaning nozzle 215. Therefore, a long time is required from the operation of starting the cleaning until the local cleaning operation is actually started.

On the other hand, in the state where the human body local cleaning operation is not performed, the electromagnetic valve is viewed from the hot water tank 206 and the cleaning nozzle 21 is not operated.
5 or a discharge path (not shown), the residual water remaining inside the cleaning nozzle is hardly discharged, and a vacuum breaker must be provided.

However, even if a vacuum breaker is provided between the solenoid valve and the cleaning nozzle, a small amount of cold water which is hardly discharged at atmospheric pressure due to surface tension is deposited inside the nozzle tube, which is not preferable for sanitation. .

[0012] There has also been proposed a human body local washing machine configured to discharge cold water to a discharge channel prior to cleaning when the water used for cleaning is not at an appropriate temperature. Wash the inner surface of the toilet before washing the buttocks,
In addition, since there is no wetting, if dirt scattered by washing the buttocks adheres to the unsealed surface of the toilet, the dirt tends to stick and the toilet is often dirty.

[0013] Further, before the temperature of the hot water used for cleaning the human body part becomes an appropriate temperature, and before the human body part is actually cleaned,
Since it is necessary to discharge hot water from the tip of the cleaning nozzle and perform the cleaning operation by self-jetting the cleaning nozzle, a longer time is required from the start of the cleaning operation to the actual start of cleaning the human body. Was.

The present invention has been made in view of the above problems, and discharges a large amount of hot water at the beginning of washing, discharges residual water in the middle of a water passage from a hot water tank to a washing nozzle, or causes transient water discharge. It is an object of the present invention to provide a human body local cleaning apparatus capable of shortening the time for recovering residual heat and simultaneously cleaning a nozzle tip and discharging cold water.

[0015]

According to the first aspect of the present invention, as shown in FIG. 1, a water solenoid valve 7 for opening and closing water supply from a water supply, and a washing nozzle (a bidet washing nozzle 14) for washing a human body part. , Buttocks washing nozzle 15), hot water tank 6 for storing hot water, hot water temperature sensor 13 for detecting the temperature of hot water tank 6, and a drainage passage (pre-pressurized water) for discharging cold water halfway between hot water tank 6 and the washing nozzle. Washing nozzle 20);
A switching valve 19 for distributing the hot water from the hot water tank 6 to the drainage channel and the washing nozzle, and a nozzle extension mechanism for extending and contracting the washing nozzle, and controlling the operation of the switching valve 19 and the nozzle extension mechanism In the local cleaning device, when the start of cleaning is instructed in a state where hot water is stored in the hot water tank 6, the cleaning nozzle is contracted for a time until the hot water in the hot water tank 6 reaches the switching valve 19, and then the switching valve is switched. After opening at least the drain channel side of the cleaning nozzle 19, the cleaning nozzle is extended to switch the switching valve 19 to the cleaning nozzle side.

According to a second aspect of the present invention, a water discharge temperature sensor 18 is provided in the middle of a water path connecting the switching valve 19 and the hot water tank 6, and the time until the hot water in the hot water tank 6 reaches the switching valve 19 is determined by the water discharge temperature. It is characterized in that the detection temperature from the sensor 18 is set to a time when an appropriate temperature is detected.

According to the first and second aspects of the present invention, the water is discharged from both the discharge path for lightly cleaning the inner surface of the toilet and the cleaning nozzle of the human body, or only the discharge path, so that the initial stage of cleaning starts. A large amount of hot water is discharged to reduce the time required to discharge remaining water in the middle of the water channel from the hot water tank 6 to the washing nozzle and to recover transient residual heat, and to clean the tip of the nozzle and cool water. Discharge at the same time.

The invention according to claim 3 is characterized in that, when the start of washing is instructed in a state where hot water is not present in the hot water tank 6, the switching valve 19 is switched to the washing nozzle side to extend the washing nozzle. According to the third aspect of the present invention, even when there is no high-temperature water, the human body can be cleaned using cold water.

The invention according to claim 4 is characterized in that the pressure loss from the switching valve 19 to the drainage channel is smaller than the pressure loss from the switching valve 19 to the washing nozzle. According to the fourth aspect of the invention, the hot water staying inside can be quickly and reliably discharged from the discharge path.

According to the fifth aspect of the present invention, the temperature of the hot water in the hot water tank 6 is higher than the temperature at which the hot water is actually discharged, and water and hot water are mixed between the water discharge temperature sensor 18 and the hot water tank 6. A hot and cold water mixing valve 8 is inserted. According to the fifth aspect of the invention, it is possible to obtain a larger amount of hot water at a predetermined temperature.

The invention according to claim 6 is characterized in that the discharge path is replaced with a nozzle different from the cleaning nozzle used for the human body local cleaning operation specified by the user. According to the sixth aspect of the invention, inexpensive nozzles can be used instead of expensive nozzles used for local cleaning of the human body, so that product costs can be reduced.

The invention according to claim 7 is characterized in that the discharge path is the pre-wash nozzle 20, and the toilet is pre-washed with the hot water from the switching valve 19 prior to the start of washing. In the invention according to claim 7, since water or hot water is always discharged from the discharge port of the discharge passage prior to washing of the human body local part, the inner surface of the toilet is wetted with excess water, and dirt scattered at the time of washing the buttocks is removed. Sticking can be prevented.

[0023] The invention according to claim 8 is a control means for allowing the switching valve 19 to communicate at least the discharge nozzle with the cleaning nozzle used for cleaning the human body part when the human body part cleaning is not performed. It is characterized by having. In the invention according to claim 8, furthermore, no local cleaning of the human body is performed.
In a so-called standby state, at least the nozzle used for the human body and the discharge path are communicated with each other so that the head between the cleaning nozzle and the discharge path can be used without using a vacuum breaker or the like between the cleaning nozzle and the switching valve 19. Due to the difference, the warm water retained inside can be discharged. In addition, it is possible to shorten the time for discharging residual water and recovering transient residual heat in the middle of the water channel from the hot water tank 6 to the cleaning nozzle, and simultaneously perform cleaning of the nozzle tip and discharging of cold water. it can.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 The present invention will be described below with reference to the drawings. FIG. 1 shows an operation principle diagram of the first embodiment of the human body cleaning apparatus according to the present invention. The human body local cleaning device includes a hot water tank 6, a water solenoid valve 7, a hot and cold water mixing valve 8, a bypass water passage 16, a hot water temperature sensor 13, a water discharge temperature sensor 18, a pre-cleaning nozzle 20, a bidet cleaning nozzle 14, and a posterior cleaning nozzle 15. doing.

As shown in FIG. 2, this hot water tank 6
A hot water heater 6a, a float switch 6b, and a vacuum breaker 6c are provided and always store hot water of 50 to 80 degrees. This warming operation is performed by always monitoring the temperature with the warm water temperature sensor 13 provided inside the warm water tank 6.
When the detected temperature falls below a certain temperature, the hot water heater 6a is automatically energized, and when the detected temperature becomes above a certain temperature, the hot water heater 6a is automatically deenergized.

When tap water flows in by the opening operation of the water solenoid valve 7, the hot water tank 6 sends out the internal high-temperature water to the hot-water mixing valve 8, and the high-temperature water flowing into the hot-water mixing valve 8. And a proper amount of tap water (cold water) flowing from the bypass water passage 16 without passing through the hot water tank 6, respectively, and sends out about 40 degrees of hot water, which is optimal for human body local cleaning, to the downstream side.

The water solenoid valve 7 allows the tap water to flow in or out according to the user's instruction to start or stop the local washing, so that the water pressure necessary for washing the human body part can be obtained from the tap pressure. I have.

The switching valve 19 is a flow path switching control valve, and can switch the flow paths of the posterior cleaning nozzle 15, the bidet cleaning nozzle 14, and the pre-cleaning nozzle 20 in the manner shown in FIG. The pre-cleaning nozzle 20 is located below the toilet rim surface as shown in FIG.

FIGS. 3A to 3D show the position of the switching valve 19 in the standby state, the posterior washing, the bidet washing, and the pre-washing state. On the side surface of the body 31 of the switching valve 19, a joint forming each of the water passages for pre-washing, bidet, and buttocks washing of the toilet bowl is formed, and has a cylindrical hole 34 therein. The valve shaft 32 is housed in the body 31. The valve shaft 32 has a cylindrical shape, and has a cutout portion 33 that connects the inside and the outside corresponding to each water channel formed in the body 31. The valve shaft 32 is rotated by the switching valve drive motor 32a, and when the position of the notch 33 and the position of the joint hole 34 of the body 31 coincide with each other, the pre-washing, bidet, and buttocks washing water passages shown in FIG. To communicate with

FIGS. 4A to 4C show the relationship between the angle of the valve shaft 32 shown in FIG. 3 and the degree of opening of each channel of the switching valve 19 (channel selection). When the valve shaft 32 is at 0 degrees, the water channel from the hot water tank 6 does not communicate with either the posterior cleaning nozzle 15 or the bidet cleaning nozzle 14, and the pre-cleaning nozzle 20 functions as a drainage channel.
Only communicates with

When the valve shaft 32 rotates by more than +30 degrees, the water path for the posterior washing starts to communicate with the hot water tank 6, and the water path between the pre-wash nozzle 20 and the hot water tank 6 starts to close. When the valve shaft 32 rotates by +40 degrees or more, the water path for buttocks washing and the hot water tank 6 are completely connected, and the pre-wash nozzle 20 and the hot water tank 6 are completely closed.

On the contrary, when the valve shaft 32 is moved from 0 degree to -3
When rotated by 0 degrees or more, the water path for bidet cleaning and the hot water tank 6 start to communicate with each other, and the water path between the pre-cleaning nozzle 20 and the hot water tank 6 starts to close. Valve shaft 32 is-
If it rotates more than 40 degrees, the bidet washing channel and hot water tank 6
Are completely communicated, and the pre-cleaning nozzle 20 and the hot water tank 6 are completely closed.

FIGS. 5 (a) to 5 (g) show an operation sequence of the human body local cleaning apparatus using the valve shaft 32 having the water channel configuration as shown in FIG. When the washing is started, the water solenoid valve 7 is opened and the hot water mixing valve 8 starts operating. At this time, as shown in FIGS. 5B to 5D, the hot water tank 6 and the posterior washing channel, and the hot water tank 6 and the bidet washing channel are both completely closed. The functioning pre-wash water channel is completely connected, and the residual water accumulated inside the hot water tank 6 and the hot / water mixing valve 8 can be quickly discharged into the toilet from the pre-wash nozzle 20 functioning as a drain channel.

This operation is performed by making the pressure loss in the water passage from the switching valve 19 to the pre-wash nozzle 20 sufficiently smaller than the pressure loss in the water passage from the switching valve 19 to the posterior washing nozzle 15 and the bidet washing nozzle 14. The amount of water discharged when the washing channel is selected is increased from that in the normal use state. Thereby, the hot water tank 6 and the hot and cold water mixing valve 8
The residual water accumulated inside the toilet can be quickly and reliably discharged from the pre-wash nozzle 20 functioning as a drainage channel into the toilet.

In this state, when the water discharge temperature sensor 18 detects that the hot water mixing valve 8 has been operated and the hot water flowing out of the hot water mixing valve 8 has reached an appropriate temperature, the extension of the posterior washing nozzle 15 is started. When the extension of the buttocks cleaning nozzle 15 is completed,
When the valve shaft 32 of the switching valve 19 is largely rotated, the hot water tank 6 and the hot water mixing valve 8 and the water passage of the backwash nozzle 15 are fully opened, and the backwash starts with a predetermined amount of water, and the hot water mixing valve 8 and the hot water tank 6 The water channel between the toilet pre-wash nozzle 20 and the drainage channel is completely closed, and drainage (water discharge) from the pre-wash nozzle 20 into the toilet stops. At this time, since the warm water spouted from the posterior washing nozzle 15 gradually increases with the rotation of the valve shaft 32, the remaining water inside the nozzle tube can be discharged until the amount of water hits the human body part. .

Next, when the washing of the human body part is completed and the user instructs the end of the washing of the human body part, the water solenoid valve 7 is closed,
The switching valve 19 is returned to the initial angle at the start of cleaning, that is, 0 degrees. Thereby, the posterior washing nozzle 15 side is closed, and the pre-washing nozzle 20 which is a drainage channel and the hot water tank 6 are communicated with each other, so that the pre-washing state can be obtained.

When hot water is consumed by washing hot water in a human body part, the temperature of the hot water tank 6 is reduced. Therefore, the hot water temperature sensor 13 provided in the hot water tank 6 detects this, and the control circuit shown in FIG. Heater 6 by command of 160
a reheats the hot water. At this time, some expansion water overflows from the hot water tank 6 with an increase in the temperature of the hot water.
The overflowing water is discharged to a pre-wash nozzle 20 which is a drain through a switching valve 19. Therefore, the expansion water generated by the heating of the hot water tank 6 can be quickly discharged into the toilet without increasing the internal pressure or staying inside the nozzle tube.

Although not shown in FIG. 5, when hot water necessary for mixing hot and cold water is not stored in the hot water tank 6, even if the hot and cold water mixing valve 8 starts operating normally, water is discharged forever. The temperature sensor 18 cannot detect an appropriate temperature. Therefore, as shown in FIG. 1, a hot water storage judging means 13a for judging hot water storage is provided, and the hot water tank 6
If the hot water temperature sensor 18 provided in the apparatus cannot detect hot water storage, it is determined that the temperature is appropriate even when the water discharge temperature sensor 18 that measures the water discharge temperature of the hot water mixing valve 8 does not detect the appropriate temperature. Then, after a certain period of time has elapsed, the extension of the buttocks washing nozzle 15 can be started immediately even if the water discharge temperature sensor 18 has not detected the appropriate temperature. For this reason, even if the hot water in the hot water tank 6 is completely used, the buttocks can be quickly washed with the cold water. Needless to say, a water level detecting means such as a float switch 6b may be provided in the hot water tank 6 shown in FIG.

Further, in the case of a human body local cleaning device which always stores the appropriate temperature water in the hot water tank 6 without using the hot water mixing valve 8, if the water discharge temperature sensor 18 is not used, the detection of the appropriate temperature water will The determination may be made based on the lapse of a predetermined time after the opening of the solenoid valve 7 or the discharge of a predetermined amount of water.

Therefore, when the angle of the valve shaft 32 is 0 degree, water can be discharged from the pre-cleaning nozzle 20 having a small pressure loss at the beginning of the cleaning, and the residual water in the pipe can be simply discharged quickly. Not only that, the remaining heat time is shortened, and for the hot water mixing valve 8 whose water discharge temperature is stabilized more quickly as the water discharge amount is larger, the waiting time until the proper temperature water is discharged can be shortened.

Furthermore, after the washing is completed, residual water remaining in the pipe is discharged from the pre-cleaning nozzle 20 having a small pressure loss by a siphon phenomenon, so that propagation of various bacteria due to the residual water can be suppressed.

Embodiment 2 FIG. 6 shows another embodiment 2 showing the relationship between the angle of the valve shaft 32 and the degree of opening of each channel of the switching valve 19 (channel selection) shown in FIG. When the valve shaft 32 is at 0 degrees, the water path from the hot water tank 6 communicates with all of the posterior cleaning nozzle 15 and the bidet cleaning nozzle 14 that are the cleaning nozzles, and the pre-cleaning nozzle 20 that is the drainage path. When the valve shaft 32 rotates to +30 degrees, first, the water channel between the bidet cleaning water channel and the hot water tank 6 starts to close. When the valve shaft 32 rotates up to +40 degrees, the posterior washing water channel and the hot water tank 6 begin to close. Valve shaft 3
2 rotates to +50 degrees, the water path from the hot water tank 6 and the water paths on the side of the posterior cleaning nozzle 15 and the bidet cleaning nozzle 14 are completely closed, and the pre-cleaning nozzle
Only the hot water tank 6 communicates with 0.

When the valve shaft 32 rotates to +80 degrees, the water path between the pre-wash nozzle 20 and the hot water tank 6 starts to be closed, and the water path from the hot water tank 6 and the water path from the posterior cleaning nozzle 15 begin to communicate. When the valve shaft 32 rotates by more than +90 degrees, the gap between the blur cleaning nozzle 20 and the hot water tank 6 is completely closed, and the water path for posterior washing and the hot water tank 6 are completely connected. That is, the switching valve 19
The relationship between the angle of the slit provided in the valve shaft 32 and the water channel selection and the cleaning operation is as follows.

0 ° to + 40 °: In the water path selection in this case, all the water paths of the posterior washing nozzle 15, the bidet washing nozzle 14, and the toilet pre-wash nozzle 20 communicate with the hot water tank 6. When the human body part is not washed, the switching valve 19 and the hot water tank 6
From the pre-cleaning nozzle 20, which is a drainage channel, by using the head difference between the posterior cleaning nozzle 15 and the pre-cleaning nozzle 20 by a siphon phenomenon, and at the beginning of cleaning. , Hot water mixing valve 8
From the hot water tank 6 to the hot water mixing valve 8 to quickly discharge the cold water from the hot water tank 6 to perform self-cleaning by self-injection of the nozzles, and to obtain quick hot water temperature characteristics of hot water mixing. Can be

+40 degrees to +50 degrees: In this case, the water path of the pre-wash nozzle 20 is slightly different from the water path of the pre-wash nozzle 20, but the water path of the posterior cleaning nozzle 15 communicates with the hot water tank 6. By discharging warm water from the toilet pre-wash nozzle 20,
While the stable water spouting of the hot water mixing valve 8 is ensured, a small amount of appropriate temperature water is spouted from the posterior washing nozzle 15 to warm the nozzle, and the remaining water at the time of nozzle self-injection spouted until the hot water mixing valve 8 stabilizes. Discharge some cold or hot water.

+50 degrees to +80 degrees: In this case, only the water path of the toilet pre-wash nozzle 20 communicates with the hot water tank 6 in the water path selection. By discharging the warm water from the toilet pre-wash nozzle 20, while ensuring stable water discharge of the hot and cold water mixing valve 8, the water discharge from the posterior washing nozzle 15 is stopped so that the water other than the human body part is not wetted by the wash water. The cleaning nozzle is electrically extended.

+90 degrees or more: In this case, the waterway selection
Only the water path of the buttocks washing nozzle 20 communicates with the hot water tank 6. The cleaning nozzle is fully extended to perform a normal human body cleaning operation.

When the valve shaft 32 rotates in the reverse direction from 0 degrees, a slit of the valve shaft 32 is formed so that a water path for bidet cleaning is selected. That is, when the valve shaft 32 rotates to −30 degrees, first, the water passage between the posterior washing water passage and the hot water tank 6 starts to close. When the valve shaft rotates to -40 degrees, the bidet washing channel and the hot water tank 6 begin to close.

When the valve shaft rotates to -50 degrees, the water passage from the hot water tank 6 and the water passages on the side of the posterior washing nozzle 15 and the bidet washing nozzle 14 are closed, and only the pre-wash nozzle 20 and the hot water tank 6 which are the drainage passages are closed. Be in communication. When the switching shaft 32 rotates to -80 degrees, the water path between the toilet pre-wash nozzle 20 and the hot water tank 6 starts to close, and when the switching shaft 32 rotates to -90 degrees, the water path from the hot water tank 6 and the bidet cleaning nozzle 14 And the water path from the hot water tank 6 is completely closed. Valve shaft 32 is -9
When rotated by 0 degrees or more, the water path for bidet cleaning and the hot water tank 6 are completely connected.

FIG. 7 shows an operation sequence of the human body local cleaning apparatus using the switching valve 19 having the water channel configuration as shown in FIG. When the cleaning is started, the water solenoid valve 7 is opened while the valve shaft 32 is kept at 0 degree, and the hot water mixing valve 8 starts operating. At this time, the pre-wash nozzle 20, which is a drainage channel, communicates with the hot water tank 6 and the posterior wash channel, the hot water tank 6 and the bidet wash channel, and the hot water tank 6 and the toilet pre-wash channel, respectively. The nozzle 20 reliably and rapidly discharges the cold residual water accumulated inside the hot water tank 6, the buttocks washing nozzle 15, the bidet washing nozzle 14, and the hot and cold water mixing valve 8.

This operation is performed by making the pressure loss in the water passage from the switching valve 19 to the pre-wash nozzle 20 sufficiently smaller than the pressure loss in the water passage from the switching valve 19 to the posterior washing nozzle 15 and the bidet washing nozzle 14. The amount of water discharged when the pre-cleaning water channel is selected is greatly increased as compared with the normal use state.

In this state, when the hot and cold water mixing valve 8 is operated and the water discharge temperature sensor 18 detects that the hot water flowing out of the hot and cold water mixing valve 8 has reached an appropriate temperature, the switching shaft 32 rotates to +40 degrees, and The washing nozzle 14 is closed, and the inside of the buttocks washing nozzle 15 is reliably filled with the appropriate temperature water. At this time, in the control circuit 160 shown in FIGS. 1 and 2, when the hot water temperature sensor 13 provided in the hot water tank 6 shown in FIG. 2 cannot detect hot water storage (for example, when the float switch 6 b Is detected, or when the detected temperature of the hot water temperature sensor 13 of the hot water tank 6 is lower than a predetermined temperature), the detection of the appropriate hot water by mixing hot and cold water is abandoned, and the next operation is performed even if the appropriate hot water cannot be detected. Let it start.

When the proper temperature water is detected by the water discharge temperature sensor 13, an internal timer provided in the control circuit 160 shown in FIG. 1 switches the switching shaft until the time when it can be considered that the inside of the posterior washing nozzle 15 is filled with the proper temperature water. 32, the switching shaft 3
2 is rotated to +50 degrees to close the hot water tank 6 and the buttocks washing water channel while securing the amount of water in the toilet pre-wash water channel so as not to wet other than the local part of the human body, and then to start elongation.

When the extension of the posterior washing nozzle 15 is completed, the valve shaft 32 of the switching valve 19 is largely rotated,
Hot water tank 6, hot water mixing valve 8 and buttocks washing nozzle 1
5 is fully opened, the buttocks washing starts with a predetermined amount of water, and the water passage between the hot and cold water mixing valve 8 and the hot water tank 6 and the pre-wash nozzle 20 is completely closed.
Water discharge from 0 stops.

Next, when the cleaning of the human body part is completed and the user instructs the end of the cleaning of the human body part, the water solenoid valve 7 is closed, and the switching valve 19 returns to the initial angle of cleaning: 0 degrees. It is. Accordingly, the hot water tank 6 and the posterior washing water channel, the hot water tank 6 and the bidet washing water channel, and the hot water tank 6 and the toilet pre-wash water channel can be communicated with each other to be in a state before the start of washing.

The hot water consumed by the hot water washing of the human body part appears as a decrease in the temperature of the hot water tank 6. Therefore, the hot water temperature sensor 13 provided in the hot water tank 6 detects this, and the control circuit shown in FIG. 160 reheats the hot water. At this time, some expansion water overflows from the hot water tank 6 as the temperature of the hot water rises. This overflowing water is discharged to the drainage channel via the switching valve 19. Therefore, the expansion water generated by the heating of the hot water tank 6 can be quickly discharged without causing an internal pressure rise or stagnation inside the nozzle tube.

Also, as shown in FIGS. 1 and 2, the drainage channel including the normal toilet pre-cleaning nozzle 20 is located lower than the stored buttocks cleaning nozzle 20. Here, when the water solenoid valve 7 is closed, the switching valve 19 from the posterior cleaning nozzle 15, the switching valve 19 from the bidet cleaning nozzle 20, and the pre-cleaning nozzle 20 from the switching valve 19.
All waterways up to are filled with water. For this reason,
The water inside the bidet cleaning nozzle 20 and the posterior cleaning nozzle 15 has a head difference between the water inside the toilet pre-cleaning nozzle 20 and the water inside the toilet pre-cleaning nozzle 20 due to the siphon phenomenon. Is discharged.

Therefore, when the angle of the valve shaft 32 is 0 degree, a large amount of water can be spouted from the toilet pre-wash nozzle 20 with a small pressure loss at the beginning of the washing, and the remaining water in the piping can be simply discharged quickly. Not only that, the remaining heat time is shortened, and for the hot water mixing valve 8 whose water discharge temperature is stabilized more quickly as the water discharge amount increases, the waiting time until the appropriate temperature water is discharged can be shortened. In addition, since the inner surface of the toilet bowl is washed with hot water before the start of washing the toilet, it is possible to more reliably dissolve dirt adhering to the inner surface of the toilet bowl than when using cold water, and to use the inner surface of the toilet bowl to clean the toilet. It is possible to prevent the attachment of dirt which is sometimes scattered.

Furthermore, after washing is completed, residual water remaining in the piping is discharged from the toilet pre-cleaning nozzle 20 having a small pressure loss by a siphon phenomenon, so that the propagation of various germs due to the residual water and the discomfort due to the cold water are eliminated. Therefore, the remaining heat time at the beginning of cleaning can be shortened.

FIG. 8 is a control block diagram of the control circuit 160 shown in FIG. 1 of the apparatus for cleaning a human body part according to the second embodiment. The operation mode control means 101 controls the human body local cleaning device to be in one of the modes of stop / bottom cleaning / video bidet cleaning in response to operations of the posterior cleaning switch, bidet cleaning switch, and stop switch. Hot water storage temperature control means 102, when the detection signal of hot water temperature sensor 13 is below a certain temperature, energizes hot water heater 6a,
Increase the temperature of the hot water. When the detection signal of the hot water temperature sensor 13 falls below a certain temperature,
It is determined that the hot water tank 6 has run out of hot water, and the presence or absence of hot water is output.

The operation stop control means 104 instructs the switching valve to select the channel when the human body local cleaning device is in a stopped state so that the channel is opened by the bidet / buttock / wobble nozzle. The water solenoid valve urging means 105 opens the water solenoid valve 7 when the human body local cleaning device is in operation. The pre-wash control means 106 continues the drain operation while pre-washing the toilet until the hot / water mixing valve operates normally.

The pre-cleaning operation end determining means 107 determines that the hot and cold water mixing valve has started to operate normally, and instructs to shift from the pre-cleaning drain operation to the next operation. The appropriate temperature determining means 108 detects the water discharge temperature detected by the water discharge temperature sensor 18 provided between the switching valve and the hot and cold water mixing valve within a predetermined temperature range set by the user. Generates an appropriate temperature detection signal assuming that the operation has started normally. When the hot and cold water mixing valve starts operating normally, the hot water replacement control means 109 continuously opens the pre-cleaning water channel and the nozzle side water channel used for local cleaning of the human body, and the nozzle side not used for local cleaning of the human body. The water channel is closed, and the appropriate temperature water obtained by mixing the hot and cold water is allowed to flow for a predetermined time through the nozzle side water channel used for local cleaning of the human body, and the remaining water inside the nozzle tube is replaced with the appropriate temperature water.

Upon receiving the nozzle extension start instruction signal, the nozzle expansion / contraction control means 110 activates the nozzle motor 131 to extend the nozzle by a predetermined amount, continuously opens the pre-cleaning water channel, and cleans the human body part. Close the nozzle side water channel used in. Local cleaning operation instructing means 111
After the nozzle extension operation is completed, the toilet pre-cleaning water channel is closed, and the nozzle-side water channel used for local cleaning of the human body is opened.

The switching valve angle setting means 112 is switched by a water channel selection signal from the operation stop control means 104, the pre-cleaning control means 106, the hot water replacement control means 109, the nozzle expansion / contraction control means 110, and the local cleaning operation instruction means 111. A rotation instruction signal is given to the valve drive motor 32a to set the angle of the valve shaft of the switching valve to a predetermined angle.

Next, the operation of each part shown in FIG. 8 will be described. When the posterior washing switch is operated and the operation mode control means 101 enters the posterior washing mode, the water solenoid valve urging means 105 operates to activate the water electromagnetic valve. The valve 7 is opened, the tap water is taken into the human body local cleaning device, the pre-cleaning control means 106 starts operating, and the hot water mixing valve starts operating normally by opening the water solenoid valve 7. Until this time, a channel selection signal is output to the switching valve angle setting means 112 so as to select at least a channel for pre-cleaning the channel of the switching valve. The switching valve angle setting means 112 drives the switching valve drive motor 32a until the switching valve angle signal obtained from the switching valve angle detection means 112 becomes the same as the request signal.

When the hot and cold water mixing valve starts to operate normally and the signal from the water discharge temperature sensor 18 provided in the middle of the water channel reaches an appropriate temperature, the appropriate temperature judging means 108 operates and the appropriate temperature detection signal is pre-cleaned. Output to the end determination means 107.

The pre-cleaning operation completion determining means 107 determines whether the appropriate temperature signal has been obtained or the hot water storage determining means 103.
If the hot water storage detection signal obtained from is not obtained, that is, when the hot water in the water channel is at an appropriate temperature, or when it is clear that there is no hot water in the hot water tank and the hot water mixing valve does not operate normally, the pre-cleaning operation is performed. A pre-cleaning operation end signal to end is transmitted.

Upon receiving this signal, the pre-cleaning control means 106 stops the pre-cleaning operation, and the hot water replacement control means 109 inside the nozzle tube continues the pre-cleaning water path and the nozzle side water path used for local cleaning of the human body. Switching valve to close the nozzle-side water channel that is not used for human body local cleaning, and to allow the appropriate temperature water obtained by mixing hot and cold water to flow through the nozzle-side water channel used for human body local cleaning for a predetermined time. Angle setting means 11
2 outputs a waterway selection signal. Switching valve angle setting means 11
2 until the switching valve angle signal obtained from the switching valve angle detecting means becomes the same as the request signal.
Drive a.

The hot water replacement control means 109 determines that the inside of the nozzle tube has been filled with hot water when a predetermined time has elapsed after receiving the pre-cleaning end signal, and stops the hot water replacement operation inside the nozzle tube. , And outputs a nozzle extension start signal to the nozzle extension / contraction control unit 110. The nozzle expansion / contraction control means 110 outputs a water path selection signal to the switching valve angle setting means 112 so as to continuously open the toilet pre-cleaning water path and close the nozzle-side water path used for local human body cleaning. The switching valve angle setting unit 112 is configured to switch the switching valve angle signal obtained from the switching valve angle detection unit until the switching signal becomes the same as the request signal.
When the switching valve drive motor 32a is driven and the switching valve angle signal becomes the same as the request signal, the nozzle motor 131 is advanced until the nozzle position signal obtained from the nozzle position detecting means detects a predetermined position. Drive.

When the nozzle extension is completed, the nozzle expansion / contraction control unit 110 sends a nozzle extension completion signal to the local cleaning operation unit 1.
11 is output. Upon receiving this signal, the local cleaning operation instructing unit 111 outputs a water channel selection signal to the switching valve angle setting unit 112 so as to close the pre-cleaning water channel and open the nozzle-side water channel used for human body local cleaning. The switching valve angle setting means 112 drives the switching valve drive motor 32a until the switching valve angle signal obtained from the switching valve angle detection means 130 becomes the same as the request signal.

When the user operates the stop switch and the operation mode control means 101 enters the stop mode, the water solenoid valve urging means 105 closes the water solenoid valve 7 and the pre-cleaning control means 106 and the inside of the nozzle pipe. Hot water replacement control means 10
9. Instead of the channel selection signal from the nozzle expansion / contraction control unit 110 and the local cleaning operation instructing unit 111 not being output, the operation stop control unit 104 is activated, and any of the nozzle-side channel and the pre-cleaning-side channel is operated. A water path selection signal is output to the switching valve angle setting means 112 so as to be communicated with the hot water tank and the hot water mixing valve side. The switching valve angle setting unit 112 drives the switching valve drive motor 32a until the switching valve angle signal obtained from the switching valve angle detection unit 130 becomes the same as the request signal.

In the present invention, as shown in FIG. 3, a slit or opening that opens at a predetermined shaft angle at a position corresponding to the body 31 of the switching valve 19 on the side of the valve shaft 32 of the cylindrical switching valve 19. By providing the opening, not only the switching valve 19 that performs complicated operation can be simply configured, but also it is small and inexpensive as compared with the conventional one in which the water channel is selected by using a plurality of solenoid valves, and the specific It is not necessary to keep energizing like a solenoid valve to keep the waterway open.

Further, as shown in FIGS. 2 and 3, hot water from the hot water tank 6 can be reliably secured regardless of the angle of the valve shaft 32 and the operation of the control circuit. For this reason, even if the control circuit malfunctions, all the outlets of the switching valve 19 will not be blocked, and an abnormal pressure rise inside the hot water tank 6 will not occur, so that the overpressure relief valve may be abolished. Thus, an inexpensive and small hot water washing apparatus can be configured. This characteristic makes it possible to further stabilize the hot water temperature in a human body local cleaning apparatus using a hot water mixing valve, in which the mixing ratio of hot water changes slightly due to fluctuations in the water pressure loss on the outlet side.

In addition to this, it is possible to discharge water from the pre-cleaning nozzle 20 with a small pressure loss at the beginning of the cleaning, not only to quickly discharge the residual water in the pipe, but also to shorten the remaining heat time. In addition, for the hot water mixing valve 8 whose water discharge temperature is stabilized more quickly as the water discharge amount is larger, the waiting time until the proper temperature water is discharged can be shortened. In addition, since the inner surface of the toilet bowl is washed with hot water before starting the posterior washing, dirt adhering to the inner surface of the toilet bowl during urination can be more reliably dissolved than cold water, and the toilet bowl is scattered when the toilet bowl is washed by wetting the inner surface. It is possible to prevent the adherence of waste materials.

Further, after washing is completed, residual water remaining inside the piping is discharged from the pre-cleaning nozzle 20 having a small pressure loss by a siphon phenomenon, so that not only the germ propagation due to the residual water and the discomfort due to cold water are eliminated, but also Thus, the remaining heat time at the beginning of cleaning can be shortened.

In the embodiment of the present invention, a hot / water mixing valve type human body local cleaning device in which high-temperature water is stored inside and a mixing ratio of water and hot water is adjusted by a hot / water mixing valve 8 has been described. Is not limited to these examples.
That is, even in a hot water storage type human body local cleaning apparatus that stores hot water of an appropriate temperature in the hot water tank 6 from the beginning, the operation of completely draining cold water accumulated inside is exactly the same.

The hot water tank 6 and the water discharge temperature sensor 18
Even in a human body cleaning apparatus with a built-in hot / water mixing valve without water or an instant water heater type human body local cleaning apparatus, after the water solenoid valve 7 is opened, an internal timer may be used for a certain period of time (may be varied depending on the air temperature). The same effect and the same effect can be obtained by replacing the time when the water discharge temperature sensor 18 detects that the appropriate temperature has been detected, or when the predetermined amount of water has been discharged. Action can be obtained. Further, the expansion and contraction of the cleaning nozzle is not limited to the one performed by the motor, and may be the one performed by water pressure.

[0078]

According to the first and second aspects of the present invention,
By discharging water from both the discharge path for lightly cleaning the inner surface of the toilet bowl and the cleaning nozzle in the human body or from the discharge path, a large amount of hot water is discharged at the beginning of cleaning, and in the middle of the water path from the hot water tank to the cleaning nozzle. As a result, it is possible to shorten the time for discharging residual water and recovering transient residual heat, and at the same time, it is possible to simultaneously clean the nozzle tip and discharge cold water.

According to the third aspect of the present invention, even when there is no high-temperature water, the human body can be cleaned using cold water.

According to the fourth aspect of the present invention, the hot water staying inside can be quickly and reliably discharged from the discharge path.

According to the fifth aspect of the present invention, hot water at a predetermined temperature can be reliably obtained.

According to the sixth aspect of the present invention, it is possible to reduce the product cost without using an expensive human body local cleaning nozzle.

According to the seventh aspect of the present invention, since water or hot water is always discharged from the discharge port of the discharge passage prior to cleaning of the human body part, the inner surface of the toilet bowl is wetted with excess water, and the sewage that is scattered at the time of cleaning the buttocks is washed away. Can be prevented from sticking to the toilet.

According to the eighth aspect of the present invention, further, in a so-called standby state in which the human body local cleaning is not performed, at least the nozzle used for the human body local and the discharge path are communicated with each other, so that the nozzle pipe and the switching valve are connected. Even without using a vacuum breaker or the like, it is possible to discharge the warm water retained inside due to the head difference between the nozzle and the discharge path. In addition, the time for discharging residual water and recovering transient residual heat in the middle of the water channel from the hot water tank to the cleaning nozzle is shortened, and at the same time, the cleaning of the nozzle tip and the discharge of cold water are simultaneously performed.

[Brief description of the drawings]

FIG. 1 is a first embodiment of a human body local cleaning apparatus according to the present invention.
FIG. 3 is a diagram showing an operation principle diagram of FIG.

FIG. 2 is a view showing a component arrangement of the human body local cleaning apparatus according to the present invention.

FIG. 3 is a view showing the structure of a switching valve according to an embodiment of the present invention.

4 is a diagram showing a relationship between the angle of the valve shaft shown in FIG. 3 and the degree of opening of each water channel (selection of water channel) of the switching valve.

5 is a diagram showing an operation sequence of the local cleaning device using a switching valve having a water channel configuration as shown in FIG. 4;

FIG. 6 is a diagram showing another embodiment showing the relationship between the angle of the valve shaft and the degree of opening of each water channel (selection of water channel) shown in FIG. 3;

FIG. 7 is a view showing an operation sequence of the local cleaning device using a switching valve having a water channel configuration as shown in FIG. 6;

FIG. 8 is a control block diagram of a human body local cleaning apparatus according to the second embodiment.

FIG. 9 is an external view of a conventional human body cleaning apparatus incorporating a hot and cold water mixing valve.

FIG. 10 is an operation principle diagram of a conventional human body local cleaning device having a built-in hot water mixing valve.

FIG. 11 shows a hot-water mixing valve 2 for each element shown in FIG.
It is a figure which shows the operation | movement sequence of the human body part cleaning apparatus using 08.

[Explanation of symbols]

1. Hot water 6. Hot water tank 6a. Hot water heater 6b. Float switch 6c. Vacuum breaker 7. Water solenoid valve 8. Hot water mixing valve 13. Hot water temperature sensor 13a. Hot water hot water storage determination means 14. Bidet cleaning nozzle
15. Ass washing nozzle 16. Bypass waterway 18. Water discharge temperature sensor 19. Switching valve 20. Pre-cleaning nozzle 31. Body 32. Valve shaft 32a. Switching valve drive motor 33. Notch 34. Hole 101. Operation mode control means 102.
Hot water storage temperature control means 103. Hot water storage determining means 104. Operation stop control means 105. Water solenoid valve biasing means 106.
Pre-cleaning control means 107. Pre-cleaning operation end determination means 108. Appropriate temperature determination means 109. Hot water displacement control means
110. Nozzle expansion / contraction control means 111. Local cleaning operation instruction means 112. Switching valve angle setting means 130. Switching valve angle detecting means 131. Nozzle motor 160. Control circuit 200. Heating toilet seat 201. Toilet lid 202. Body
203. Operation panel 204. Branch fitting 205. Connecting hose 206. Hot water tank 207. Main channel solenoid valve
208. Hot water mixing valve 209. Solenoid valve 210. Solenoid valve 211. Solenoid valve 2
12. Orifice 213. Hot water temperature sensor 214.
Bidet cleaning nozzle 215. Ass washing nozzle 216. Bypass waterway

Claims (8)

[Claims] 1. A water solenoid valve for opening and closing water supply from a water supply,
A washing nozzle for washing a human body part, a hot water tank for storing hot water, a hot water temperature sensor for detecting the temperature of the hot water tank, a drainage channel installed in the middle of the hot water tank and the washing nozzle to discharge cold water, and hot water In a human body local cleaning apparatus having a switching valve for distributing hot water from a tank to a drainage channel and a washing nozzle, and a nozzle extension mechanism for extending and contracting the washing nozzle, and controlling the operation of the switching valve and the nozzle extension mechanism. When the cleaning start was instructed in a state where hot water was stored in the hot water tank, the cleaning nozzle was contracted for a time until the hot water in the hot water tank reached the switching valve, and then the switching valve was opened at least on the drain side. A human body local cleaning apparatus characterized in that the cleaning nozzle is extended to switch the switching valve to the cleaning nozzle side. 2. A water discharge temperature sensor is provided in the middle of a water path connecting the switching valve and the hot water tank, and the time required for hot water in the hot water tank to reach the switching valve is defined as the time until the temperature detected by the water discharge temperature sensor detects an appropriate temperature. The apparatus for cleaning a local part of a human body according to claim 1, wherein: 3. The cleaning valve is extended by switching the switching valve to the cleaning nozzle side when the start of cleaning is instructed without hot water in the hot water tank.
2. A human body local cleaning device according to claim 1. 4. The apparatus according to claim 1, wherein the pressure loss from the switching valve to the drainage channel is smaller than the pressure loss from the switching valve to the washing nozzle. 5. The hot water in the hot water tank has a temperature higher than the temperature at which water is actually discharged, and a hot / water mixing valve for mixing water and hot water is inserted between the water discharge temperature sensor and the hot water tank. The human body local cleaning device according to claim 3 or 4, wherein 6. The cleaning apparatus according to claim 1, wherein the discharge path is replaced with a cleaning nozzle different from a cleaning nozzle used for a human body local cleaning operation instructed by a user.
2. A human body local cleaning device according to claim 1. 7. The toilet pre-wash nozzle, wherein the toilet pre-wash is performed with warm water from a switching valve prior to the start of cleaning.
The human body local cleaning device according to 4 or 5. 8. The control device according to claim 1, wherein the switch valve has a control means for connecting at least the cleaning nozzle used for cleaning the human body part and the discharge path when the human body part cleaning is not performed. The human body local cleaning device according to 1, 2, 3, 4, 5, 6, or 7.