JP2022190089A - Local cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a local cleaning device capable of preventing sewage and dirt from adhering to a shutter.

SOLUTION: The local cleaning device performs local cleaning by discharging cleaning water from a local cleaning nozzle which advances from an opening. The local cleaning device includes a shutter capable of opening and closing the opening, and a cleaning part that supplies water to the shutter.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present invention relates to a private cleansing device.

In Patent Document 1 below, after using the toilet, a private part washing nozzle is advanced into the inside of the toilet bowl body from the nozzle opening, and washing water is discharged from the tip of the private part washing nozzle to wash the private part of the human body (private part washing). A personal cleansing device is disclosed.

The private parts washing device is provided with a shutter for opening and closing the nozzle opening in order to prevent dirty water and dirt from flowing into the private parts washing device through the nozzle opening.

JP 2017-125375 A

By the way, when the nozzle opening is controlled to be in a closed state by a shutter, there is a possibility that dirty water and filth will adhere to the surface of this shutter. Further, when the nozzle opening is controlled to be open, the shutter rotates upward, so there is a possibility that sewage and dirt may adhere to the back surface of the shutter. Therefore, it is desired to keep the shutter sanitary.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to prevent dirty water and dirt from adhering to the shutter.

One aspect of the present invention is a private parts washing apparatus for washing private parts by discharging washing water from a private part washing nozzle advanced from an opening, comprising: a shutter capable of opening and closing the opening; and a flushing washing unit.

One aspect of the present invention is the above-described private parts washing apparatus, wherein the washing unit causes water to flow through the shutter when the shutter opens the opening.

One aspect of the present invention is the private parts washing apparatus described above, wherein the shutter is rotatably attached to the opening, and when the private parts washing nozzle advances, the shutter pushes the private parts washing nozzle to move the shutter. When the opening is opened and the private parts washing nozzle is retracted, the opening is closed, and the washing unit moves the private parts washing nozzle forward from the opening to open the opening. and discharging water onto the surface of the private parts washing nozzle to flow the shutter.

One aspect of the present invention is the above-described private parts washing apparatus, wherein the washing part discharges water onto the surface of the private parts washing nozzle when the opening is in an open state, thereby and the back surface of the shutter.

As described above, according to the present invention, it is possible to suppress adhesion of dirty water and dirt to the shutter.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows an example of schematic structure of the toilet system A provided with the private-parts washing apparatus 9 which concerns on one Embodiment of this invention. 4A and 4B are diagrams for explaining an advancing and retreating operation of the private parts washing nozzle 10 according to the embodiment of the present invention; FIG. 1 is a diagram showing an example of a schematic configuration of a private parts washing device 9 according to an embodiment of the present invention; FIG. FIG. 4 is a flow diagram of the operation of forming a water film according to one embodiment of the present invention; FIG. 4 is a flow diagram of the operation of forming a water film when washing the private parts according to one embodiment of the present invention. FIG. 4 is a diagram showing the position of a water film port 171 according to one embodiment of the present invention; It is a figure which shows the modification of the shutter 12 which concerns on one Embodiment of this invention.

Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. Also, not all combinations of features described in the embodiments are essential for the solution of the invention. In addition, in the drawings, the same or similar parts may be denoted by the same reference numerals, and duplicate description may be omitted. Also, the shapes and sizes of elements in the drawings may be exaggerated for clearer explanation.

FIG. 1 is a diagram showing an example of a schematic configuration of a toilet system A equipped with a private parts washing device according to one embodiment of the present invention. As shown in FIG. 1, the toilet system A includes a toilet device 1 and a remote control device 2. As shown in FIG.

The toilet device 1 is provided in a toilet room, and transmits and receives information through wired or wireless communication with the remote control device 2 .

The remote control device 2 is installed at a predetermined position in the toilet room. For example, this predetermined position is the wall surface of the toilet room. The remote control device 2 is provided with a plurality of operation switches, and the user presses, for example, the operation switches corresponding to the toilet bowl washing and the private part washing for the toilet device 1. can be executed.

The toilet device 1 includes a toilet body 3 and a toilet seat device 4 .

The toilet body 3 is installed on the floor in the toilet room. A toilet seat device 4 is installed on the upper portion of the toilet body 3 .

The toilet seat device 4 includes a body cover 5 , a toilet seat 6 , a toilet lid 7 , a toilet bowl cleaning device 8 and a private part cleaning device 9 .

The main body cover 5 is a cover that covers the toilet bowl washing device 8 and the private part washing device 9 from above so as to accommodate the toilet bowl washing device 8 and the private part washing device 9 placed on the rear and upper part of the toilet body 3 .

The toilet seat 6 is supported so as to be vertically rotatable with respect to the body cover 5 . That is, the toilet seat 6 is pivotally supported by the main body cover 5 and is rotatable with respect to the toilet body 3 between an upright state and a reclined state.

The toilet lid 7 is supported so as to be vertically rotatable with respect to the body cover 5 . That is, the toilet lid 7 is pivotally supported by the body cover 5 and is rotatable with respect to the toilet bowl body 3 between an upright state and a laid-down state.

The toilet bowl cleaning device 8 is housed inside the main body cover 5, and performs toilet cleaning by discharging cleaning water into the toilet bowl body 3, for example, when a user operates an operation switch corresponding to toilet bowl cleaning. .

The private parts washing device 9 advances the private parts washing nozzle 10 from the nozzle opening 11 into the toilet body 3 after using the toilet, and discharges washing water from the discharge hole 10a formed at the tip of the private parts washing nozzle 10. , to perform local cleansing for cleaning the private parts of the human body.

Specifically, the private parts washing device 9 includes a private parts washing nozzle 10 , a nozzle opening 11 , and a shutter 12 . In addition, the nozzle opening 11 is an example of the "opening" of the present invention.

The private part washing nozzle 10 is housed in the main body cover 5, and has a discharge hole 10a for discharging washing water at its tip. The private part washing nozzle 10 is configured so that washing water supplied from the rear end side and circulated inside is discharged from the discharge hole 10a in a predetermined direction.

The nozzle opening 11 is an opening having a size that allows the private parts washing nozzle 10 to pass therethrough when the private parts washing nozzle 10 advances forward.

The shutter 12 can open and close the nozzle opening 11 , and is rotatably attached to the nozzle opening 11 , for example. The shutter 12 is pressed by the private parts washing nozzle 10 to open the nozzle opening 11 when the private parts washing nozzle 10 advances, and closes the nozzle opening 11 when the private parts washing nozzle 10 is retracted.

The advance and retreat operation of the private parts washing nozzle 10 will be described below with reference to FIG.

The shutter 12 is connected to the private cleaning device 9 via a spring member (not shown). That is, the shutter 12 is biased by the spring member in the direction of closing the shutter 12 .

A projection 12 a is provided on the rear surface of the shutter 12 at a position facing the private parts washing nozzle 10 . This projection 12a has an inclined surface that gradually approaches the back as it goes downward. Therefore, when the private parts washing nozzle 10 advances, the tip of the private parts washing nozzle 10 comes into contact with the protrusion 12a (FIG. 2(a)). When the private parts washing nozzle 10 advances further, the tip of the private parts washing nozzle 10 presses the inclined surface of the projection 12a. As a result, the shutter 12 is rotated upward so that the rear surface 12b faces downward, and is held at a predetermined position (FIG. 2(b)). In this way, the nozzle opening 11 is opened and the private part washing nozzle 10 is advanced from the main body cover 5 to the inside of the toilet bowl body, so that the warm water for washing is discharged from the discharge hole 10a of the private part washing nozzle 10, and the user's private part is cleaned. , and hot air can be blown out from the nozzle opening 11 to the private parts of the user seated on the toilet seat 6 by a hot air drying device provided in the private parts washing device 9 .

Further, when the private parts washing nozzle 10 is retracted, the shutter 12 rotates while retreating rearward by the biasing force of the spring member. As a result, the tip of the private parts washing nozzle 10 comes into contact with the projection 12a. Then, when the private parts washing nozzle 10 retreats further, the tip of the private parts washing nozzle 10 separates from the projection 12a, and the shutter 12 closes the nozzle opening 11 (closed state).

Furthermore, the private parts washing device 9 forms a water film on the surface of the private parts washing nozzle 10 with water in a state where the private parts washing nozzle 10 is protruding from the nozzle opening 11 , so that the private parts washing nozzle 10 and the shutter 12 are separated from each other. It has a function to prevent dirt and sewage from adhering to the The water for forming this water film may be cold water or hot water. In this embodiment, a case where a water film is formed by hot water will be described.
The configuration of the private parts washing device 9 according to this embodiment will be specifically described below with reference to FIG.

As shown in FIG. 3 , the private parts washing device 9 includes a first flow path 13 , a second flow path 14 , a water supply valve 15 , a warm water generator 16 and a washing unit 17 .

The first flow path 13 is a flow path that allows water from the water supply source S to flow into the hot water generator 16 via the water supply valve 15 . In addition, cold water may be sufficient as "water" in this embodiment, and hot water may be sufficient as it.
The second flow path 14 is a flow path for sending hot water from the hot water generating section 16 to the washing section 17 .

The water supply valve 15 is provided in the first flow path 13 and controls water supply from the water supply source S to the hot water generator 16 by opening or closing the first flow path 13 . Specifically, the water supply valve 15 opens the first flow path 13 when the cleaning unit 17 controls the water supply valve 15 to be in an open state. As a result, water from the water supply source S flows into the hot water generator 16 through the first flow path 13 . On the other hand, the water supply valve 15 closes the first flow path 13 when the cleaning unit 17 controls the water supply valve 15 to be closed. As a result, the inflow of water into the hot water generator 16 is stopped.

The hot water generator 16 heats the water flowing through the first flow path 13 to a predetermined temperature to generate hot water. Then, the hot water generator 16 feeds the hot water heated to a predetermined temperature to the cleaning unit 17 through the second flow path 14 . The configuration of the hot water generator 16 will be specifically described below.

The hot water generator 16 includes a heater 161 , a temperature sensor 162 and a temperature controller 163 .

The heater 161 heats the water flowing through the first flow path 13 to a predetermined temperature under the control of the temperature controller 163 . Hot water generated by being heated by the heater 161 is supplied to the cleaning section 17 through the second flow path 14 .

The temperature sensor 162 is provided in the second flow path 14 and measures the temperature of hot water heated by the heater 161, and is, for example, a thermistor. Temperature sensor 162 outputs the measured temperature to temperature controller 163 .

The temperature control unit 163 controls the output of the heater 161 so that the temperature measured by the temperature sensor 162 becomes the predetermined temperature. Note that the temperature control unit 163 can control the temperature of hot water supplied to the second flow path 14 to an arbitrary temperature.

The washing unit 17 includes a private part washing nozzle 10 , a water film port 171 , branched flow paths 172 to 174 , a flow control valve 175 , a drive unit 176 and a control device 177 .

The private part washing nozzle 10 is at least one of a pair of private part washing nozzles of a bottom washing nozzle 111 and a bidet nozzle 112 . In the following description, the buttocks washing nozzle 111 and the bidet nozzle 112 are simply referred to as "the private part washing nozzle 10" when they are not distinguished from each other.

The water film opening 171 is an opening for forming a water film on the surface of the private parts washing nozzle 10 . That is, the washing unit 17 discharges hot water from the water film port 171 toward the surface of the private parts washing nozzle 10 to form a water film on the surface of the private parts washing nozzle 10 protruding from the nozzle opening 11 .

The branch channels 172 to 174 are channels branched from the second channel 14 .

The branch channel 172 branches off from the second channel 14 and communicates with the tip of the bottom washing nozzle 111 .
The branch channel 173 branches off from the second channel 14 and communicates with the tip of the bidet nozzle 112 .
The branch channel 174 branches off from the second channel 14 and communicates with the water film port 171 .

The flow adjustment valve 175 selects one or more branch flow paths through which the hot water generated by the hot water generator 16 flows from among the plurality of branch flow paths 172 to 174, and selects the selected branch flow path (hereinafter referred to as "selected branch flow The hot water generated by the hot water generator 16 is supplied to the hot water generating section 16. However, if the flow control valve 175 does not flow the hot water generated by the hot water generating unit 16 to any of the plurality of branch flow paths 172 to 174, the selected branch flow path may not be selected. .
Furthermore, the flow adjustment valve 175 can adjust the flow rate of hot water flowing through the selected branch flow path. The control device 177 controls the selection of the selected branch flow path in the flow adjustment valve 175 and the adjustment of the flow rate of the hot water flowing through the selected branch flow path.

The drive unit 176 can individually move the pair of the bottom washing nozzle 111 and the bidet nozzle 112 back and forth under the control of the control device 177 .

The control device 177 controls the opening or closing of the first flow path 13 by controlling the driving of the water supply valve 15 .
Further, the control device 177 controls the selection of the selective branch flow path in the flow adjustment valve 175 to control the washing of the private parts by the washing nozzle 10 and the formation of a water film on the surface of the washing nozzle 10 . It should be noted that the water film of this hot water is formed as the private parts washing nozzle 10 advances and retreats.
Furthermore, the controller 177 can adjust the temperature of the hot water supplied to the second flow path 14 by communicating with the temperature controller 163 .

The operation flow of the private parts washing device 9 according to this embodiment will be described below with reference to FIG. In addition, in the following description, as an advancing/retreating operation of the private parts washing nozzle 10, an advancing/retreating operation of the anterior part washing nozzle 111 will be described as an example.

When the nozzle opening 11 is to be opened, the control device 177 controls driving of the drive unit 176 to start advancing the bottom washing nozzle 111 (step S101). Here, when the nozzle opening 11 is opened, for example, there is a case of washing a private part or a case of hot air drying.

When the rear washing nozzle 111 advances, the controller 177 causes the rear washing nozzle 111 to press the rear surface 12b of the shutter 12, thereby rotating the shutter 12 upward. As a result, the nozzle opening 11 is controlled to be open, and the bottom washing nozzle 111 advances from the nozzle opening 11 to a predetermined position (step S102).

When the bottom washing nozzle 111 advances from the nozzle opening 11, the controller 177 forms a water film on the surface of the bottom washing nozzle 111 (step S103). Specifically, when the bottom washing nozzle 111 advances from the nozzle opening 11 , the control device 177 controls the flow adjustment valve 175 to set the selected branch flow path to the branch flow path 172 . As a result, the hot water generated by the hot water generator 16 passes through the branch channel 174 and is discharged from the water film port 171 . Therefore, a water film is formed on the surface of the cleaning nozzle 111, and dirt and dirty water can be prevented from adhering to the surface of the cleaning nozzle 111 when local cleaning is performed.

Here, when the nozzle opening 11 is controlled to be open, the surface of the bottom washing nozzle 111 is in contact with the rear surface of the shutter 12 . Therefore, the hot water discharged onto the surface of the bottom washing nozzle 111 flows along the surface of the bottom washing nozzle 111 to the rear surface of the shutter 12 . As a result, a water film is formed on the back surface of the shutter 12 to suppress adhesion of dirt and dirty water. Further, when dirt or dirty water adheres to the rear surface of the shutter 12, the dirt or dirty water adhering thereto can be washed away.

Thus, the control device 177 forms a water film on both the surface of the bottom washing nozzle 111 and the back surface of the shutter 12 when the nozzle opening 11 is controlled to be open. Therefore, it is possible to prevent the front surface of the bottom washing nozzle 111 and the back surface of the shutter 12 from becoming dirty with dirt and dirty water.

The control device 177 determines whether or not a predetermined time has passed since the water film was formed on both the surface of the bottom washing nozzle 111 and the back surface of the shutter 12 (step S104).
When a predetermined time has passed since the water film was formed on both the surface of the bottom washing nozzle 111 and the back surface of the shutter 12, the control device 177 stops forming the water film (step S105). Specifically, the control device 177 stops the inflow of hot water from the second channel 14 to the branch channel 174 by controlling the flow control valve 175, thereby stopping the formation of the water film. Alternatively, the control device 177 stops the formation of the water film by controlling the water supply valve 15 to close the first channel 13 . On the other hand, if the predetermined time has not passed since the water film was formed on both the surface of the bottom washing nozzle 111 and the back surface of the shutter 12, the control device 177 continues the formation of the water film.

After stopping the formation of the water film, the control device 177 controls the driving of the driving section 176 to retract the rear end washing nozzle 111 into the main body cover 5 (step S106).

Next, the operation of forming a water film on the shutter 12 when washing the private parts will be described with reference to FIG.

For example, when the user operates the private parts washing button on the remote control device 2, the control device 177 detects the operation. Then, the controller 177 controls the water supply valve 15 to open the first flow path 13, and controls the driving of the drive unit 176 to start advancing the bottom washing nozzle 111 (step S201).

When the bottom washing nozzle 111 advances, the nozzle opening 11 is opened. Therefore, when the controller 177 advances from the nozzle opening 11, it forms a water film on the front surface of the bottom washing nozzle 111 and the rear surface of the shutter 12 (step S202). Specifically, when the bottom washing nozzle 111 advances from the nozzle opening 11 , the control device 177 controls the flow adjustment valve 175 to set the selected branch flow path to the branch flow path 172 . As a result, the hot water generated by the hot water generator 16 passes through the branch channel 174 and is discharged from the water film port 171 . Therefore, hot water is discharged onto the surface of the bottom washing nozzle 111 . Also, the hot water discharged onto the surface of the bottom washing nozzle 111 flows along the surface to the rear surface of the shutter 12 . Thereby, a water film is formed on the surface of the cleaning nozzle 111 and the back surface of the shutter 12 .

When the buttocks washing nozzle 111 advances to a predetermined position for washing the private parts (step S203), the control device 177 stops the advancing operation of the bottom washing nozzle 111 . Then, the control device 177 controls the flow adjustment valve 175 to select the branch flow path 172 in addition to the branch flow path 174 as the selected branch flow path in order to wash the private part. As a result, the hot water generated by the hot water generator 16 flows into the branch channel 172 and the branch channel 174 . Therefore, the formation of the water film is continued, and the warm water is discharged as washing water from the discharge hole 10a of the bottom washing nozzle 111 to start washing the private parts (step S204).

Here, a water film is formed on the front surface of the rear washing nozzle 111 and the rear surface of the shutter 12 during washing of the private parts by the rear washing nozzle 111 . As a result, dirt can be prevented from adhering to the front surface of the bottom washing nozzle 111 and the rear surface of the shutter 12 during washing of the private parts.

When the remote control device 2 is operated by the user to instruct to stop washing the private parts, the control device 177 detects the operation and sets only the branch flow path 174 as the selected branch flow path in the flow adjustment valve 175. . That is, the control device 177 stops the washing of the private parts by stopping the supply of hot water from the second channel 14 to the branch channel 172 (step S205). Then, the control device 177 controls the driving of the drive unit 176 to start the retraction operation of the rear end washing nozzle 111 (step S206). It should be noted that the formation of the water film on the front surface of the rear washing nozzle 111 and the rear surface of the shutter 12 continues even when the rear washing nozzle 111 is retracted. As a result, even if dirt adheres to the surface of the bottom washing nozzle 111 and the rear surface of the shutter 12 during washing, the adhered dirt can be washed away with warm water.

The control device 177 determines whether or not the bottom washing nozzle 111 has been retracted into the body cover 5 (step S207). When the control device 177 determines that the bottom washing nozzle 111 has retreated into the body cover 5, it stops forming the water film (step S208). Specifically, the control device 177 stops the inflow of hot water from the second channel 14 to the branch channel 174 by controlling the flow control valve 175, thereby stopping the formation of the water film. Alternatively, the control device 177 stops the formation of the water film by controlling the water supply valve 15 to close the first channel 13 .

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It is obvious to those skilled in the art that various modifications or improvements can be made to the above embodiments. It is clear from the description of the scope of claims that forms with such modifications or improvements can also be included in the technical scope of the present invention.

(Modification 1)
In the above embodiment, the case where the formation of the water film on the surface of the bottom washing nozzle 111 and the back surface of the shutter 12 is continued even during washing of the private parts has been described, but the present invention is not limited to this. For example, in the operation shown in FIG. 5, the control device 177 may stop the discharge of hot water onto the surface of the private parts washing nozzle 10 during the washing of the private parts to stop the formation of the water film.

(Modification 2)
In the above embodiment, when the private parts washing nozzle 10 advances, the shutter 12 rotates upward so that the back surface 12b faces downward, but the present invention is not limited to this. For example, the shutter 12 may rotate downward so that the back surface 12b faces upward when the private parts washing nozzle 10 advances.

(Modification 3)
In the above embodiment, the washing unit 17 discharges hot water onto the surface of the private parts washing nozzle 10 when the private parts washing nozzle 10 advances from the nozzle opening 11 and the nozzle opening 11 is in the open state. The invention is not limited to this. For example, the washing unit 17 may eject water onto the surface of the private parts washing nozzle 10 . That is, the washing unit 17 may discharge cold water or hot water onto the surface of the private part washing nozzle 10 .

(Modification 4)
In the above embodiment, the cleaning unit 17 forms a water film on the back surface of the shutter 12, but the present invention is not limited to this, and the water film may be formed on the surface of the shutter 12, or the surface of the shutter 12 may be formed with water. A water film may be formed on both the surface and the rear surface.

(Modification 5)
Note that the position of the water film port 171 in the above embodiment is not particularly limited as long as it is a position that allows part of the hot water generated by the hot water generator 16 to be discharged from the water film port 171 onto the surface of the private parts washing nozzle 10 . For example, as shown in FIG. 6, the water film port 171 may be formed in the upper part of the support body 300 through which the private part washing nozzle 10 can be put in and taken out.

(Modification 6)
In the above embodiment, the case where the protrusion 12a is provided on the shutter 12 has been described, but the present invention is not limited to this. That is, as shown in FIG. 7, the protrusion 12a may not be provided on the shutter 12. FIG. As a result, the lower end of the shutter 12 contacts the private parts washing nozzle 10, so that not only the back surface of the shutter 12 but also the lower end of the shutter 12 can be washed.

As described above, the private parts washing device 9 according to one embodiment of the present invention includes the washing unit 17 that allows water to flow through the shutter 12 that can open and close the nozzle opening 11 .

According to such a configuration, it is possible to prevent dirty water and dirt from adhering to the shutter 12 .

Further, the cleaning unit 17 may flow water to the shutter 12 when the shutter 12 is in the open state with the nozzle opening 11 .

According to such a configuration, it is possible to prevent dirty water and dirt from adhering to the back surface of the shutter 12 .
Here, since the surface of the shutter 12 is easily visible by the user, it can be easily cleaned by the user when it is dirty. However, the back surface of the shutter 12 is difficult for the user to visually recognize and is difficult to clean. Therefore, when the shutter 12 is in the open state with the nozzle opening 11, the cleaning unit 17 can keep the back surface of the shutter 12 clean and hygienic by running water through the shutter 12. - 特許庁

In addition, when the private parts washing nozzle 10 presses the shutter 12 to control the nozzle opening to be in an open state, the washing part 17 discharges water onto the surface of the private parts washing nozzle 10 to spray the shutter 12 with water. may flow.

According to such a configuration, it is possible to prevent dirty water and dirt from adhering to both the surface of the private parts washing nozzle 10 and the back surface of the shutter 12 .

Further, in the private parts washing device 9 according to one embodiment of the present invention, the hot water discharged onto the surface of the private parts washing nozzle 10 is configured to flow along the surface of the private parts washing nozzle 10 to the back surface of the shutter 12 . Therefore, the back surface of the shutter 12 can be cleaned in a range wider than the width of the private part cleaning nozzle 10 .

A Toilet system 1 Toilet device 2 Remote control device 9 Private washing device 10 Private washing nozzle 11 Nozzle opening (opening)
12 shutter 17 cleaning part S water supply source

Claims (4)

A private parts washing device for washing a private part by ejecting washing water from a private part washing nozzle advanced from an opening,
a shutter capable of opening and closing the opening;
a washing unit for flowing water to the shutter;
A private cleaning device comprising: 2. The private parts washing apparatus according to claim 1, wherein said washing unit allows water to flow through said shutter when said shutter opens said opening. The shutter is rotatably attached to the opening, and when the private-parts washing nozzle advances, it is pushed by the private-parts washing nozzle to open the opening. Close the opening,
When the private parts washing nozzle advances from the opening to open the opening, the washing part discharges water onto the surface of the private parts washing nozzle to flow water onto the back surface of the shutter. The private parts washing device according to claim 1 or 2. The washing unit forms a water film on both the surface of the private parts washing nozzle and the back surface of the shutter by ejecting water onto the surface of the private parts washing nozzle when the opening is in the open state. 4. A private cleansing device according to claim 3.

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