Hygienic cleaning device

Abstract

A sanitary washing apparatus is provided which is configured to selectively generate a plurality of states of water flow and adjust the flow rate of the water flow without using a flow rate adjusting pump. The sanitary washing apparatus includes a nozzle and a switching device. The nozzle includes a nozzle head, a main flow passage, and a sub flow passage. The switching device includes a first member and a second member configured to rotate with respect to the first member. The first member includes a main groove portion having an opening connected to the main flow passage, and a sub groove portion having an opening connected to the sub flow passage. The second member has a main opening configured to communicate with the main groove portion of the first member according to a relative rotational position of the second member, and a sub opening configured to communicate with the sub groove portion of the first member according to the relative rotational position of the second member.

Description

Technical Field

[0001] This disclosure relates to a hygienic cleaning device for cleaning specific areas of a seated person's body. Background Technology

[0002] A hygienic cleaning device is known, which is constructed to clean a localized area of ​​a seated person's body by discharging a stream of cleaning water that impacts that area. Japanese Patent Application Publication No. 2024-50194 discloses a hygienic cleaning device configured to selectively generate water flows in multiple states. This hygienic cleaning device allows the user to selectively use one of the multiple water flows according to their preferences or conditions. Summary of the Invention

[0003] The problem the invention aims to solve

[0004] The purpose of this disclosure is to provide a hygienic cleaning device configured to selectively generate water flow in multiple states and to regulate the flow rate of the water flow without using a flow regulating pump.

[0005] Solution for solving the problem

[0006] A hygienic cleaning device according to one aspect of this disclosure includes: a nozzle configured to direct water flow toward a localized area of ​​a seated person; and a switching device configured to switch between modes for supplying the water flow to the nozzle. The nozzle includes: a nozzle head; a main flow channel for supplying a main water flow to the nozzle head; and a secondary flow channel for supplying a secondary water flow to the nozzle head to merge with the main water flow. The switching device includes: a first member; and a second member configured to rotate relative to the first member. The first member includes: a main channel having an opening connected to the main flow channel; and a secondary channel having an opening connected to the secondary flow channel. The second member has: a main opening configured to communicate with the main channel of the first member according to the relative rotational position of the second member relative to the first member; and a secondary opening configured to communicate with the secondary channel of the first member according to the relative rotational position of the second member relative to the first member. At least one of the main water volume flowing into the main channel through the main opening of the second component and the main groove of the first component, or the secondary water volume flowing into the secondary channel through the secondary opening of the second component and the secondary groove of the first component, changes according to the relative rotational position of the second component.

[0007] The effects of the invention

[0008] According to this disclosure, the relative rotation of the second component with respect to the first component changes at least one of the main water flow or the auxiliary water flow, which enables the selective generation of water flow in multiple states and allows the flow rate of the water flow to be adjusted without the use of a flow regulating pump. Attached Figure Description

[0009] Figure 1 This is a perspective view schematically showing the state of the sanitary cleaning device attached to the toilet according to the embodiment;

[0010] Figure 2 It is a schematic diagram showing the water circuit included in the sanitary cleaning equipment;

[0011] Figure 3 This is a top view of the nozzles included in the hygiene cleaning equipment;

[0012] Figure 4 It is along Figure 3 A cross-sectional view taken from line AA;

[0013] Figure 5 yes Figure 4 Enlarged cross-sectional view of the main part;

[0014] Figure 6 It is along Figure 4 A cross-sectional view of line BB;

[0015] Figure 7 This is a perspective view of the first component of the switching device included in the sanitary cleaning equipment;

[0016] Figure 8 This is a perspective view of the second component of the switching device included in the sanitary cleaning equipment;

[0017] Figure 9 It is a diagram showing the positional relationship between the first and second components when the switching device discharges a small amount of water from a continuous flow.

[0018] Figure 10 It is a diagram showing the positional relationship between the first and second components when the switching device discharges the continuous water flow at a moderate volume;

[0019] Figure 11 It is a diagram showing the positional relationship between the first and second components when the switching device discharges a large volume of water from a continuous flow.

[0020] Figure 12 It is a diagram showing the positional relationship between the first and second components when the switching device discharges water in a large volume of two-phase flow.

[0021] Figure 13 It is a diagram showing the positional relationship between the first and second components when the switching device discharges water in a moderate flow rate from the two-phase state.

[0022] Figure 14It is a diagram showing the positional relationship between the first and second components when the switching device discharges water in a small volume from the two-phase state.

[0023] Figure 15 It is a diagram showing the positional relationship between the first and second components when the switching device discharges the intermittent water flow in a small volume;

[0024] Figure 16 It is a diagram showing the positional relationship between the first and second components when the switching device discharges the intermittent water flow at a moderate volume;

[0025] Figure 17 It is a diagram showing the positional relationship between the first and second components when the switching device discharges the intermittent water flow in a large volume;

[0026] Figure 18 This is a diagram showing the relationship between the rotational position of the second component and the water flow state;

[0027] Figure 19 It is a cross-sectional view showing a continuous flow of water being discharged from the nozzle;

[0028] Figure 20 It is a cross-sectional view showing a continuous flow of water being discharged from the nozzle;

[0029] Figure 21 It is a cross-sectional view showing a continuous flow of water being discharged from the nozzle;

[0030] Figure 22 It is a cross-sectional view showing a continuous flow of water being discharged from the nozzle;

[0031] Figure 23 It is a cross-sectional view showing the two-phase water flow being discharged from the nozzle;

[0032] Figure 24 It is a cross-sectional view showing the two-phase water flow being discharged from the nozzle;

[0033] Figure 25 It is a diagram showing the state of the two-phase water flow in the space after the two-phase water flow is discharged from the nozzle;

[0034] Figure 26 This is a cross-sectional view showing the intermittent flow of water discharged from the nozzle;

[0035] Figure 27 This is a cross-sectional view showing the intermittent flow of water discharged from the nozzle;

[0036] Figure 28This is a diagram showing state 1 of the water flow in the space after the water is discharged from the nozzle; and

[0037] Figure 29 This is a diagram showing the state 2 of the water flow in the space after the water is discharged from the nozzle. Detailed Implementation

[0038] The sanitary cleaning apparatus 1 according to the present disclosure will now be described with reference to the accompanying drawings. Note that the following embodiments are examples used to illustrate the present disclosure, but are not intended to limit the disclosure. For example, the shapes, structures, components, relative positional relationships, connection states, numerical values, and corresponding contents and sequences of steps in the methods shown in the following embodiments are merely examples, and the present disclosure may include content not described below. Furthermore, geometric expressions such as parallel and orthogonal may be used, and these expressions do not require mathematical precision but include substantially acceptable errors, shifts, etc. Expressions such as simultaneous and identical also include substantially...

[0039] Furthermore, the accompanying drawings include corresponding schematic diagrams for illustrating, for example, the emphasis, omission, and adjustment of ratios in this disclosure, and the schematic diagrams do not show the actual shapes, positional relationships, and ratios.

[0040] The following embodiments can be fully described in multiple ways. Furthermore, some of the following descriptions are optional parts of this disclosure.

[0041] (Sanitary cleaning equipment 1)

[0042] Figure 1 This is a perspective view showing an embodiment of a sanitary cleaning device 1 attached to a toilet 3. The sanitary cleaning device 1 is a device configured to be attached to a toilet 3, and discharges water generated by a heating device 45 (described later) from a nozzle 2 toward a local area of ​​a person sitting on a seat 30.

[0043] The sanitary cleaning device 1 includes a nozzle 2 configured to discharge water toward a localized area of ​​a seated person's body and a water circuit 4 configured to supply water to the nozzle 2 (see [link]). Figure 2 In this embodiment, the sanitary cleaning device 1 also includes a seat 30 that can be opened / closed relative to the toilet 3.

[0044] Nozzle 2 includes a cylindrical nozzle body 5 and a nozzle head 20 attached to the end of the nozzle body 5 (see...). Figure 4 The nozzle head 20 can appear and disappear together with the nozzle body 5. The sanitary cleaning device 1 may also include a toilet seat that can be opened / closed relative to the toilet 3. In this disclosure, "water" includes warm water.

[0045] (Water circuit 4)

[0046] The water circuit 4 included in the sanitary cleaning equipment 1 is not limited to a specific structure, but in this embodiment, the water circuit 4 includes, from upstream, a water supply connection port 40, a filter 41, a water-stop solenoid valve 42, a pressure reducing valve 43, a vacuum circuit breaker 44, a heating device 45, a flow control valve 46, and a switching device 47.

[0047] The water supply connection port 40 is a component that connects to a water pipe via, for example, an adapter, and includes a filter 41 integrated therein. The filter 41 prevents debris contained in the tap water from flowing in.

[0048] The water-stop solenoid valve 42 is controlled by the control device 31 (see...) Figure 1 The valve 42 is controlled to open and close the flow of water from the water pipe. Opening the stop valve 42 allows water to be discharged from the nozzle 2, and closing the stop valve 42 stops the discharge of water from the nozzle 2.

[0049] Pressure reducing valve 43 is a valve that reduces the pressure of water supplied from the water pipe to maintain a constant water pressure.

[0050] For example, when the water pipe connected to the water supply connection port 40 has negative pressure due to, for example, a water interruption, the vacuum circuit breaker 44 prevents water inside the water circuit 4 from flowing back into the water pipe. The vacuum circuit breaker 44 is connected to the vent pipe 48. The vent pipe 48 extends to the toilet bowl 32 of the toilet 3 (see...). Figure 1 The exhaust pipe 48 is a supply channel for external air when the vacuum circuit breaker 44 is operated. In addition, the exhaust pipe 48 also functions as a water discharge channel, which releases water that is momentarily released during the operation of the vacuum circuit breaker 44 into the toilet 3.

[0051] The heating device 45 is a device that heats tap water supplied from the water pipe to produce warm water. Note that in this embodiment, the heating device 45 is not limited to a specific device, but is a heat exchanger that instantly heats tap water supplied from the water pipe. The heating device 45 integrally includes a buffer tank 450 that uniformly heats the water heated by the heating device 45.

[0052] The flow control valve 46 is a valve that controls the amount of water supplied to the nozzle 2 through the control device 31.

[0053] The switching device 47 branches the water heated by the heating device 45 into a main water flow W1 and a secondary water flow W2, described later, and supplies the main water flow W1 and the secondary water flow W2 to the nozzle body 5 of the nozzle 2. The switching device 47 is configured to switch at least one of the flow rate of the main water flow W1 (hereinafter referred to as "main water flow") or the flow rate of the secondary water flow W2 (hereinafter referred to as "secondary water flow") to switch the flow rate ratio of the main water flow to the secondary water flow and to switch the combined flow rate of the main water flow and the secondary water flow (hereinafter referred to as "cleaning water flow"). In other words, the switching device 47 is configured to switch between various modes of supplying water flow to the nozzle body 5.

[0054] (Nozzle body 5)

[0055] like Figure 3 and Figure 4 As shown, the cylindrical nozzle body 5, which is included in the body of the nozzle 2, includes a main flow channel 21 and a secondary flow channel 22 extending axially along the nozzle body 5.

[0056] The main flow channel 21 is a flow channel used to supply the main water flow W1 to the nozzle head 20 and extends linearly in the lower half of the nozzle body 5.

[0057] The secondary flow channel 22 is a flow channel used to supply the secondary water flow W2 to the nozzle head 20 and extends linearly in the upper half of the nozzle body 5. The secondary water flow W2 is the water flow that merges with the main water flow W1 at the nozzle head 20, and the flow ratio of the main water flow to the secondary water flow and the cleaning water flow enable various types of water flow to be discharged from the nozzle head 20.

[0058] The secondary flow channel 22 is independent of the main flow channel 21. The secondary flow channel 22 and the main flow channel 21 are parallel to each other. The secondary flow channel 22 is located below the main flow channel 21.

[0059] The nozzle body 5 also includes a bidet flow channel 23 and a cleaning flow channel 24 (see Figure 6 The bidet flow channel 23 is a flow channel for supplying bidet water to the nozzle head 20, and is independent of the main flow channel 21 and the secondary flow channel 22. The cleaning flow channel 24 is a flow channel for supplying water for cleaning the nozzle head 20 via the pipe 87. The cleaning flow channel 24 is independent of the main flow channel 21, the secondary flow channel 22, and the bidet flow channel 23.

[0060] (Nozzle head 20)

[0061] The nozzle head 20 is configured to spray warm water heated by the heating device 45 towards a specific area of ​​the person sitting on the seat 30. Figure 5 As shown, the nozzle head 20 includes a first cylindrical portion 25, a second cylindrical portion 26, and a cover portion 27.

[0062] (First tube section 25)

[0063] The first cylindrical portion 25 has a central axis 250 extending along a direction D1 (i.e., the z-axis direction in the figure). In this embodiment, one end in the direction D1 is the upper side, and the other end in the direction D1 is the lower side. The interior of the first cylindrical portion 25 has a first flow channel 28 connected to the main flow channel 21 of the nozzle head 20. The first flow channel 28 has a central axis that coincides with the central axis 250 of the first cylindrical portion 25.

[0064] The first flow channel 28 has the following portion: a first inlet hole 251 penetrates this portion in one direction D1 (i.e., along the z-axis direction in the figure). The main water flow W1, which is part of the water generated by the heating device 45 and branched by the switching device 47, flows through the main flow channel 21 provided in the nozzle body 5 and enters the lower end opening of the first cylinder 25, passes through the first inlet hole 251, and flows into the internal space of the first cylinder 25, which is located at the upper part 252 above the first inlet hole 251.

[0065] Both the first inlet hole 251 and the upper part 252 are included in the first flow channel 28. For example... Figure 5 As shown, the relationship between the cross-sectional area S1 of the first inlet hole 251 and the cross-sectional area S2 of the internal space of the upper part 252 is such that the main water flow W1 flowing into the internal space from the first inlet hole 251 can be ejected from the upper opening of the first cylinder 25 without contacting the inner circumferential surface of the upper part 252. Specifically, S2>S1. In the above description, the cross-sectional area means the area enclosed by the inner circumferential surface of the cylinder when the cylinder is cut along a plane orthogonal to the central axis of the cylinder.

[0066] The shape of the first cylindrical portion 25 is not limited to a specific shape, but in this embodiment it is cylindrical. The shape of the first inlet hole 251 is not limited to a specific shape, but in this embodiment, the first inlet hole 251 is a circular hole and is disposed at the radial center of the first cylindrical portion 25.

[0067] (Second cylindrical section 26)

[0068] The second cylindrical portion 26 has a central axis 260 extending in one direction D1. The central axis 260 of the second cylindrical portion 26 coincides with the central axis 250 of the first cylindrical portion 25. The second cylindrical portion 26 is a cylindrical portion surrounding the outer peripheral surface of the first cylindrical portion 25. In this embodiment, a first gap 201 is provided between the outer peripheral surface of the first cylindrical portion 25 and the inner peripheral surface of the second cylindrical portion 26, and the first gap 201 has a closed lower end. The inner peripheral surface of the second cylindrical portion 26 faces the outer peripheral surface of the first cylindrical portion 25.

[0069] The lower end of the first gap 201 is partially closed by the first cylindrical portion 25. The radial length G1 of the first gap 201 is less than the inner diameter L1 of the first inlet hole 251. The second cylindrical portion 26 protrudes upward in one direction D1 beyond the upper end of the first cylindrical portion 25. The auxiliary water flow W2 generated by the heating device 45 and branched by the switching device 47 flows through the auxiliary flow channel 22 provided in the nozzle body 5 and enters the first gap 201 between the first cylindrical portion 25 and the second cylindrical portion 26. The auxiliary water flow W2 flowing into the first gap 201 climbs over the upper end of the first cylindrical portion 25 and flows into the first cylindrical portion 25. The shape of the second cylindrical portion 26 can be a square tube but is not limited to a specific shape. In this embodiment, the second cylindrical portion 26 is a cylindrical shape similar to the first cylindrical portion 25 and is coaxially arranged with the first cylindrical portion 25.

[0070] (Cover 27)

[0071] The cover portion 27 includes: a cover portion body 270, which is a circular ring; and a cylindrical portion 271, which is configured to extend upward from the surface of the front side (i.e., the upper side) of the cover portion body 270.

[0072] The cylindrical portion 271 is a cylindrical portion coaxially arranged with the first cylindrical portion 25. That is, the first cylindrical portion 25, the second cylindrical portion 26, and the cylindrical portion 271 are arranged to have the same axis. The shape of the cylindrical portion 271 is similar to that of the first cylindrical portion 25.

[0073] The cover portion 27 is arranged to close the upper end of the second cylindrical portion 26. In this embodiment, the cover portion 27 includes: a cover body 270 that closes the upper end of the second cylindrical portion 26; and a cylindrical portion 271 that protrudes upward from the radial center of the cover body 270. The cover portion 27 has a through hole 272 that penetrates the cover portion 27 in one direction D1. The through hole 272 continuously penetrates the cover body 270 and the cylindrical portion 271. Note that the cover portion 27 does not necessarily include the cylindrical portion 271, but may only include the cover body 270.

[0074] The central axis of the first inlet hole 251 and the central axis of the through hole 272 are on the same straight line. The through hole 272 has an upwardly increasing cross-sectional area. In this embodiment, the through hole 272 is a truncated conical hole. The cover portion 27 surrounding the through hole 272 has an inner circumferential surface 2720 that is tapered. The angle of the inner circumferential surface 2720 relative to the central axis of the through hole 272 is greater than 0 degrees and less than 10 degrees.

[0075] The diameter L2 of the upper opening 2721 through hole 272 is greater than the diameter L3 of the lower opening 2722 through hole 272. The cross-sectional area S3 of the upper opening 2721 is greater than the cross-sectional area S4 of the lower opening 2722.

[0076] For example, diameter L2 is 1.35 mm. Diameter L3 is 1.45 mm. In this case, the angle between the inner circumferential surface 2720 and the central axis of the hole 272 is 3.57 degrees.

[0077] A second gap 202 communicating with the first gap 201 is provided between the first cylindrical portion 25 and the cover portion 27. Therefore, the first cylindrical portion 25 faces the cover portion 27.

[0078] The second cylindrical section 26 has a second flow channel 29 that merges midway with the first flow channel 28. The second flow channel 29 has a second inlet hole 261 formed as a through hole, an air supply hole 262 formed as a through hole, a first gap 201 communicating with the second inlet hole 261 and the air supply hole 262, and a second gap 202 communicating with the first gap 201.

[0079] The portion of the second inlet hole 261 that penetrates the circumferential wall of the second cylindrical section 26 is a through hole through which the auxiliary water flow W2 flows into the first gap 201. This auxiliary water flow is another portion of the water branched off by the switching device 47. The second inlet hole 261 penetrates the circumferential wall at the point where the outer periphery of the second cylindrical section 26 overlaps with that of the first cylindrical section 25. That is, the upper end of the first cylindrical section 25 is located above the second inlet hole 261. The auxiliary water flow W2 flowing into the second inlet hole 261 impacts the outer circumferential surface of the first cylindrical section 25.

[0080] The air inlet 262 is a through hole for supplying air from outside the second cylindrical portion 26 to the first gap 201. In this embodiment, the air inlet 262 is provided at the lower part of the second cylindrical portion 26. The air inlet 262 communicates with the lower end of the first gap 201. The number of air inlets 262 can be one or more, but in this embodiment, only one air inlet 262 is provided.

[0081] The positional relationship between the air inlet 262 and the second inlet 261 is not limited to a specific relationship, but in this embodiment, the second inlet 261 is arranged above the air inlet 262. The second inlet 261 and the air inlet 262 are configured such that the inflow direction of the secondary water flow W2 from the second inlet 261 is parallel to the inflow direction of the air from the air inlet 262. The air inlet 262 and the second inlet 261 are arranged at a position 180 degrees offset from each other circumferentially about the central axis 260 of the second cylinder 26.

[0082] When passing through the through hole 272, the main water flow W1 flowing in from the first inlet hole 251 passes through alone, or the secondary water flow W2 filling the inner side of the second cylinder 26 passes through together with the main water flow W1. In this embodiment, the cross-sectional area S4 of the lower opening 2722 of the through hole 272 is greater than the cross-sectional area S1 of the first inlet hole 251. In other words, the relationship S4>S1 is satisfied.

[0083] Therefore, when the secondary water flow W2 does not flow into the inner side of the first cylindrical section 25 (i.e., when the interior of the first cylindrical section 25 is filled with air), the main water flow W1 flowing from the first inlet hole 251 into the through hole 272 can pass through the through hole 272 without contacting the inner circumferential surface 2720 of the through hole 272. The relationship between S2 and S3 can be S3≥S2. Alternatively, as long as it does not affect the above aspects, the relationship can also be S2>S3.

[0084] (Switching device 47)

[0085] The switching device 47 is configured to: switch the flow ratio of the main water flow rate, which is the flow rate of water flowing into the main channel 21 of the nozzle body 5, to the flow rate of the secondary water flow rate, which is the flow rate of water flowing into the secondary channel 22 of the nozzle body 5; and switch the amount of cleaning water, which is the sum of the main water flow rate and the secondary water flow rate.

[0086] The switching device 47 does not have a pump function, but it is configured to switch the flow ratio and volume of the cleaning water over a wide range using a water circuit structure operated by the motor 81 described below. In this embodiment, the switching device 47 is configured to achieve three switching modes that differ from each other in terms of the range of flow ratios. The three switching modes will be described later.

[0087] like Figure 4 As shown, the switching device 47 includes a first component 6, a second component 7 configured to rotate relative to the first component 6, a motor 81 configured to rotate the second component 7, and a force-applying component 82 configured to apply force to the second component 7.

[0088] (First component 6)

[0089] The first component 6 is fixed to the nozzle body 5. In other words, the first component 6 is a fixing plate. The first component 6 is a disc-shaped component, thereby defining the thickness direction, radial direction, and circumferential direction. The first component 6 has an imaginary central axis 60 extending along the thickness direction.

[0090] The first component 6 has: a first surface 661, which is circular and oriented in one direction relative to the thickness direction defined by the first component 6; and a second surface 662, which is circular and oriented in another direction in the thickness direction. The first component 6 includes a main groove 61, a secondary groove 62, a bidet groove 63, and a cleaning groove 64 recessed from the first surface 661 along the thickness direction (see...). Figure 7 These grooves 61, 62, 63 and 64 are formed to at least partially penetrate the first member 6 in the thickness direction.

[0091] The first member 6 also includes a central groove 65 recessed from the first surface 661 along the thickness direction. The central groove 65 is a blind hole in the thickness direction; in other words, it is a bottomed groove. The central groove 65 is located at the center of the first member 6, where the central axis 60 penetrates the central groove 65.

[0092] like Figure 7 As shown, a main groove 61, a bidet groove 63, and a cleaning groove 64 are provided at the outer periphery 68 of the first component 6. A secondary groove 62 and a central groove 65 are provided at the inner periphery 69 of the first component 6. The outer periphery 68 and the inner periphery 69 are divided by a radial distance based on the central axis 60. The area that reaches a predetermined distance radially based on the central axis 60 is the inner periphery 69, and the area that exceeds the predetermined distance radially is the outer periphery 68.

[0093] In the annular outer peripheral portion 68, the main groove portion 61, the bidet groove portion 63, and the cleaning groove portion 64 are located at a certain distance from each other in the circumferential direction of the first member 6. In the circumferential direction of the first member 6, the side where the bidet groove portion 63 is located relative to the cleaning groove portion 64 is in the first direction d1 of the circumferential direction of the first member 6 (see...). Figure 7 (The arrow in the image).

[0094] In the circumferential direction of the first component 6, the bidet groove 63 is located in the first direction d1 relative to the cleaning groove 64, and the main groove 61 is located in the first direction d1 relative to the bidet groove 63. The cleaning groove 64 is located in the first direction d1 relative to the main groove 61.

[0095] (Main slot 61)

[0096] The main groove portion 61 is provided with an opening 610 that penetrates the first member 6 in the thickness direction and a bottomed groove portion 615 that extends circumferentially from the opening 610. The bottomed groove portion 615 is a blind groove portion in the thickness direction.

[0097] (Opening 610)

[0098] The opening 610 is located at the main channel 21 connected to the nozzle body 5. That is, water supplied to the main tank 61 is delivered to the main channel 21 through the opening 610. The opening 610 has an opening width that varies circumferentially. The opening width described herein refers to the radial width dimension of the first member 6.

[0099] In the opening 610, the first region R11, the second region R12, and the third region R13 are arranged in this order along the first direction d1. The first region R11 has a shape in which the opening width increases along the first direction d1. The second region R12 has a shape in which the opening width decreases along the first direction d1. The third region R13 has a shape in which the opening width increases along the first direction d1.

[0100] The first region R11 and the second region R12 are continuous with each other via the widest region R16. The first region R11 has a shape in which the opening width gradually increases toward the widest region R16. The second region R12 has a shape in which the opening width gradually decreases from the widest region R16. The radially inner profile of the first region R11 is a radially outwardly projecting convex curve profile. Similarly, the radially inner profile of the second region R12 is a radially outwardly projecting convex curve profile.

[0101] The second region R12 and the third region R13 are located at a certain distance from each other in the circumferential direction; in other words, they are separate from each other. The opening width of the portion of the second region R12 that is closest to the third region R13 is substantially the same as the opening width of the portion of the third region R13 that is closest to the second region R12. Note that it is also preferable that the second region R12 and the third region R13 are continuous in the circumferential direction. In this case, the second region R12 and the third region R13 are continuous with each other via a minimum width region.

[0102] (with bottom groove 615)

[0103] The bottomed groove portion 615 has a plurality of bottomed grooves 611 and 612 with different depths. In this embodiment, the plurality of bottomed grooves 611 and 612 include two bottomed grooves 611 and 612 located on opposite sides of the opening 610 between them in the circumferential direction.

[0104] Of the two bottomed grooves 611 and 612, one bottomed groove 611 is located in a direction opposite to the first direction d1 relative to the opening 610. In other words, the opening 610 is located in the first direction d1 relative to the bottomed groove 611. The bottomed groove 611 has a bottom surface parallel to the first surface 661.

[0105] Of the two bottomed grooves 611 and 612, the other bottomed groove 612 is located in the first direction d1 relative to the opening 610. The bottomed groove 612 has a bottom surface having an inclined surface 618 that is not parallel to the first surface 661. As the inclined surface 618 extends along the first direction d1, the inclined surface 618 is inclined toward the first surface 661 in the thickness direction.

[0106] (Secondary slot 62)

[0107] The secondary groove 62 has: an opening 620 that penetrates the first member 6 in the thickness direction; and a bottomed groove 625 that extends circumferentially from the opening 620 of the secondary groove 62. The bottomed groove 625 is a blind groove in the thickness direction.

[0108] (Opening angle 620)

[0109] The opening 620 is located at the position of the secondary flow channel 22 connected to the nozzle body 5. That is, the water supplied to the secondary tank 62 is delivered to the secondary flow channel 22 through the opening 620.

[0110] (with bottom groove 625)

[0111] The bottomed portion 625 has a plurality of bottomed grooves 621, 622, and 623 with different depths. In this embodiment, the plurality of bottomed grooves 621, 622, and 623 includes: a bottomed groove 621 located in the direction opposite to the first direction d1 relative to the opening 620, and two bottomed grooves 622 and 623 located in the first direction d1 relative to the opening 620. The bottomed groove 621 and the two bottomed grooves 622 and 623 are located on the opposite side of the opening 620 in the circumferential direction.

[0112] The bottom groove 621 has a bottom surface, which has an inclined surface 628 that is not parallel to the first surface 661. The inclined surface 628 is inclined along the thickness direction away from the first surface 661 in a first direction d1.

[0113] Two bottomed grooves 622 and 623 have bottom surfaces that are both parallel to the first surface 661. The two bottomed grooves 622 and 623 are arranged sequentially in the circumferential direction. Of the two bottomed grooves 622 and 623, one bottomed groove 622 is located between the other bottomed groove 623 and the opening 620 and is deeper than the other bottomed groove 623. That is, the bottom surface of the bottomed groove 622 is positioned further away from the first surface 661 than the bottom surface of the bottomed groove 623. The bottom surfaces of the bottomed grooves 622 and 623 are circumferentially continuous with a step between them.

[0114] In this embodiment, the bottomed groove portion 625 also has another bottomed groove 624. The bottomed groove 624 is located radially outward of a portion of the opening 620 and the bottomed groove 621. The bottomed groove 624 has an inclined surface 629 that is not parallel to the first surface 661. As the inclined surface 629 extends radially outward, the inclined surface 629 is inclined toward the first surface 661 in the thickness direction.

[0115] (Bidet tray 63)

[0116] The bidet groove 63 has: an opening 630 that penetrates the first member 6 in the thickness direction; and a bottomed groove 635 that extends circumferentially from the opening 630. The bottomed groove 635 is a blind groove in the thickness direction.

[0117] (Opening angle 630)

[0118] The opening 630 is located at the position of the bidet flow channel connected to the nozzle body 5. That is, water supplied to the bidet tank 63 is delivered to the bidet flow channel through the opening 630. The opening width of the opening 630 is constant in the circumferential direction. The opening width mentioned herein refers to the radial width dimension of the first member 6.

[0119] (with bottom groove 635)

[0120] The bottomed groove portion 635 has a plurality of bottomed grooves 631 and 632. In this embodiment, the plurality of bottomed grooves 631 and 632 includes two bottomed grooves 631 and 632, which are located on opposite sides of the opening 630 between them in the circumferential direction.

[0121] Of the two bottomed grooves 631 and 632, one bottomed groove 631 is located in a direction opposite to the first direction d1 relative to the opening 630. In other words, the opening 630 is located in the first direction d1 relative to the bottomed groove 631. The bottomed groove 631 is arc-shaped and has a bottom surface parallel to the first surface 661.

[0122] Of the two bottomed grooves 631 and 632, the other bottomed groove 632 is located in the first direction d1 relative to the opening 630. The bottomed groove 632 is arc-shaped and has a bottom surface parallel to the first surface 661. The bottomed grooves 631 and 632 have the same depth, but may differ from each other.

[0123] (Cleaning tank 64)

[0124] The cleaning groove 64 has: an opening 640 that penetrates the first member 6 in the thickness direction; and a bottomed groove 645 that extends circumferentially from the opening 640. The bottomed groove 645 is a blind groove in the thickness direction.

[0125] (Opening angle 640)

[0126] The opening 640 is located at the cleaning channel 24 connected to the nozzle body 5. That is, water supplied to the cleaning tank 64 is delivered to the cleaning channel 24 via the opening 640. The opening 640 has an opening width that varies circumferentially. The opening width mentioned herein refers to the radial width dimension of the first member 6. Specifically, the opening 640 has a shape in which the opening width decreases along a first direction d1.

[0127] (with bottom groove 645)

[0128] The bottom groove portion 645 is generally arc-shaped and has an opening width that varies circumferentially. Specifically, the bottom groove portion 645 has a shape in which the opening width decreases along a first direction d1.

[0129] The bottomed groove portion 645 includes a plurality of bottomed grooves 641 and 642 that are different from each other in depth. In this embodiment, the plurality of bottomed grooves 641 and 642 are two bottomed grooves 641 and 642 located in a continuous position in the circumferential direction.

[0130] Of the two bottomed grooves 641 and 642, one bottomed groove 641 is located in a direction opposite to the first direction d1 relative to the other bottomed groove 642. The bottomed groove 641 is located in the first direction d1 relative to the opening 640. The bottomed groove 641 has a bottom surface with an inclined surface 648 that is not parallel to the first surface 661. As the inclined surface 648 extends along the first direction d1, the inclined surface 648 is inclined toward the first surface 661 in the thickness direction.

[0131] The bottom groove 642 has a bottom surface parallel to the first surface 661. Two bottom grooves 641 and 642 are arranged sequentially in the circumferential direction. The inclined surface 648 of the bottom groove 641 and the bottom surface of the bottom groove 642 are continuous in the circumferential direction.

[0132] (Second component 7)

[0133] The second component 7 is rotatably arranged relative to the nozzle body 5. In other words, the second component 7 is a rotating plate. The second component 7 is a disc-shaped component, thereby defining the thickness direction, radial direction, and circumferential direction. The second component 7 has an imaginary central axis 70 extending along the thickness direction (see...). Figure 8 ).

[0134] The second component 7 is coaxially arranged with the first component 6. That is, the central axis 70 of the second component 7, which has a disc-shaped shape, coincides with the central axis 60 of the first component 6, which also has a disc-shaped shape. The thickness direction defined relative to the second component 7 coincides with the thickness direction defined relative to the first component 6, and the radial direction of the second component 7 coincides with the radial direction of the first component 6, and the circumferential direction of the second component 7 coincides with the circumferential direction of the first component 6.

[0135] The second member 7 has a main opening 71 and a secondary opening 72 formed to penetrate the second member 7 along the thickness direction. The second member 7 also has a central hole 75 that penetrates the second member 7 along the thickness direction. The central hole 75 is located at the center of the central axis 70 of the second member 7.

[0136] like Figure 8 As shown, the main opening 71 is located at the outer periphery 78 of the second member 7. The secondary opening 72 and the central hole 75 are located at the inner periphery 79 of the second member 7. The outer periphery 78 and the inner periphery 79 are divided by a radial distance based on the central axis 70. The area reaching a predetermined distance radially based on the central axis 70 is the inner periphery 79, and the area exceeding the predetermined distance radially is the outer periphery 78.

[0137] In the circumferential direction of the second component 7, the main opening 71 and the secondary opening 72 are located at different positions. In this embodiment, the main opening 71 and the secondary opening 72 are offset from each other by 180 degrees in the circumferential direction. The central hole 75 is a non-circular hole and is located radially inside the secondary opening 72.

[0138] (Main opening 71)

[0139] The main opening 71 is configured to communicate with the main groove 61 of the first member 6 based on the relative rotational position of the second member 7 relative to the first member 6. As used herein, communication between the main opening 71 and the main groove 61 means that, in the thickness direction defined relative to the first member 6 and the second member 7, the main opening 71 and the main groove 61 overlap each other. Communication between another portion of the first member 6 and the main opening 71 also means that, in the thickness direction defined relative to the first member 6 and the second member 7, said other portion and the main opening 71 overlap each other.

[0140] The main opening 71 opens radially outward. The circumferential width of the main opening 71 is set such that the portion located further radially outward has a larger width. The circumferential width of the main opening 71 is set smaller than the circumferential width of the main groove 61 of the first member 6. Therefore, in this embodiment, the main opening 71 and the main groove 61 communicating with each other specifically means that all or part of the main opening 71 is in communication with a portion of the main groove 61.

[0141] In this embodiment, the state in which the main opening 71 of the second component 7 is connected to the main groove 61 of the first component 6 or the state in which the main opening 71 of the second component 7 is not connected to the main groove 61 of the first component 6 can be selected based on the relative rotational position of the second component 7 relative to the first component 6. Furthermore, the region that is part of the main groove 61 of the first component 6 and connected to the main opening 71 of the second component 7 can be selected based on the relative rotational position of the second component 7 relative to the first component 6.

[0142] In this embodiment, the main opening 71 is configured to selectively communicate with one of the bidet groove 63, the cleaning groove 64 and the main groove 61, depending on the relative rotational position of the second member 7 relative to the first member 6.

[0143] In other words, when the main opening 71 is in a predetermined relative rotational position, the main opening 71 communicates with the bidet basin 63 but not with the cleaning basin 64 or the main basin 61. When the main opening 71 is in another relative rotational position, the main opening 71 communicates with the cleaning basin 64 but not with the bidet basin 63 or the main basin 61. When the main opening 71 is still in another relative rotational position, the main opening 71 communicates with the main basin 61 but not with the bidet basin 63 or the cleaning basin 64.

[0144] The width of the main opening 71 in the circumferential direction is set to be smaller than the width of the bidet basin 63 in the circumferential direction, and also smaller than the width of the cleaning basin 64 in the circumferential direction. Therefore, the main opening 71 communicating with the bidet basin 63 specifically means that all or part of the main opening 71 communicates with a portion of the bidet basin 63. Similarly, the main opening 71 communicating with the cleaning basin 64 specifically means that all or part of the main opening 71 communicates with a portion of the cleaning basin 64. Depending on the relative rotational position of the second member 7 relative to the second member 6, an area included in the bidet basin 63 of the first member 6 and communicating with the main opening 71 of the second member 7 can be selected, and an area included in the cleaning basin 64 of the first member 6 and communicating with the main opening 71 of the second member 7 can also be selected.

[0145] (Secondary opening 72)

[0146] The secondary opening 72 is configured to communicate with the secondary groove 62 of the first member 6 according to the relative rotational position of the second member 7 relative to the first member 6. As used herein, the communication between the secondary opening 72 and the secondary groove 62 means that, in the thickness direction defined relative to the first member 6 and the second member 7, both the secondary opening 72 and the secondary groove 62 are located at positions where the secondary opening 72 and the secondary groove 62 overlap each other.

[0147] The circumferential width of the secondary opening 72 is set such that the portion located further outward in the radial direction has a larger width. The circumferential width of the secondary opening 72 is set to be smaller than the circumferential width of the secondary groove 62 of the first member 6. Therefore, the secondary opening 72 and the secondary groove 62 are in communication with each other, specifically meaning that all or part of the secondary opening 72 is in communication with a portion of the secondary groove 62.

[0148] In this embodiment, the state in which the secondary opening 72 of the second component 7 communicates with the secondary groove 62 of the first component 6 or the state in which the secondary opening 72 of the second component 7 does not communicate with the secondary groove 62 of the first component 6 can be selected based on the relative rotational position of the second component 7 relative to the first component 6. Furthermore, the region that is part of the secondary groove 62 of the first component 6 and communicates with the secondary opening 72 of the second component 7 can be selected based on the relative rotational position of the second component 7 relative to the first component 6.

[0149] (Motor 81)

[0150] like Figure 3 and Figure 4 As shown, the motor 81 is fixed to the nozzle body 5. A first component 6 and a second component 7 are arranged between the motor 81 and the main flow channel 21 and the secondary flow channel 22 of the nozzle body 5. The second component 7 is located between the first component 6 and the motor 81 and rotates about the central axis 70 of the second component 7 by the driving force transmitted from the motor 81.

[0151] Motor 81 includes a rotary-driven output shaft 814. The output shaft 81 is fitted into an intermediate member 85 to rotate together with the intermediate member 85. The intermediate member 85 has a protrusion 851 that fits into a central hole 75 of a second member 7 to rotate together with the second member 7. An end portion of the protrusion 851, protruding through the central hole 75 of the second member 7, is rotatably inserted into a central groove 65 of the first member 6.

[0152] The second component 7 rotates via the intermediate component 85 through the output shaft 814 of the motor 81. The relative rotational position of the second component 7 with respect to the first component 6 is changed accordingly by the output of the motor 81.

[0153] (Force-applying component 82)

[0154] like Figure 4 and Figure 6 As shown, the force-applying member 82 is a coil spring in a compressed state arranged between the intermediate member 85 and the second member 7. Through the force applied by the force-applying member 82, the second member 7 is always forced towards the first member 6.

[0155] The second component 7 rotates via the motor 81 while being constantly subjected to force by the force-applying component 82 toward the first component 6.

[0156] (Three switching modes)

[0157] By means of the sanitary cleaning device 1 of this embodiment, the relative rotation of the second component 7 and the first component 6 changes at least one of the main water flow or the auxiliary water flow. The main water flow is the flow of water W1 that flows through the main opening 71 of the second component 7 and the main channel 61 of the first component 6 and enters the main flow channel 21. The auxiliary water flow is the flow of water W2 that flows through the secondary opening 72 of the second component 7 and the secondary channel 62 of the first component 6 and enters the secondary flow channel 22. This selects one of the following first switching mode, second switching mode, and third switching mode. Selecting the switching mode switches the state of the water flow discharged from the nozzle 2 between multiple states.

[0158] (First switching mode)

[0159] Figure 9 , Figure 10 and Figure 11 The relative positional relationship between the first component 6 and the second component 7 in the first switching mode is shown.

[0160] In the first switching mode, the main opening 71 of the second component 7 is connected to the portion of the main groove 61 of the first component 6 that has a bottom groove 611. The secondary opening 72 of the second component 7 is connected to the portion of the secondary groove 62 of the first component 6 that has a bottom groove 621.

[0161] In the first switching mode, the switching device 47 allows substantially equal amounts of water to flow into the main flow channel 21 and the secondary flow channel 22 of the nozzle 2, thereby allowing substantially equal amounts of water to flow into the first inlet hole 251 and the second inlet hole 261. At this time, the flow ratio of the main water volume to the secondary water volume is 1:1 to 1.5:1.

[0162] When the second component 7 is in Figure 9 In the relative rotation position shown, in the first switching mode, the cleaning water volume, which is the total of the main water volume and the auxiliary water flow rate, is at a relatively small first level. In this relative rotation position, the main opening 71 of the second component 7 communicates with the bottomed groove 611 in the main groove portion 61 of the first component 6. The secondary opening 72 of the second component 7 communicates with the bottomed groove 621 in the secondary groove portion 62 of the first component 6.

[0163] When the second component 7 is in Figure 10 In the relative rotational position shown, the cleaning water volume is at the second level, which is greater than that at the first level. In this relative rotational position, the main opening 71 of the second component 7 communicates with the end of the bottomed groove 611 and the first region R11 of the opening 610 in the main groove portion 61 of the first component 6. The secondary opening 72 of the second component 7 communicates with a portion of the bottomed groove 621, the end of the bottomed groove 624, and the end of the opening 620 in the secondary groove portion 62 of the first component 6.

[0164] When the second component 7 is in Figure 11 At the relative rotational position shown, the cleaning water volume is at a third level, higher than the second level. In this relative rotational position, the main opening 71 of the second component 7 communicates with the end of the first region R11 of the bottomed groove 611 and opening 610 in the main groove portion 61 of the first component 6. The end of the first region R11 of the opening 610, which communicates with the main opening 71 of the second component 7, has a larger area in the third level than in the second level. The secondary opening 72 of the second component 7 communicates with the end of the bottomed groove 621, the bottomed groove 624, and the end of the opening 620 in the secondary groove portion 62 of the first component 6. The portion of the secondary opening 72 of the second component 7 that is part of the opening 620 of the secondary groove portion 62 and communicates with it has a larger area in the third level than in the second level.

[0165] (The state of the discharged water flow)

[0166] When the switching device 47 is in the first switching mode (i.e., the flow ratio of the main water volume to the auxiliary water volume is in the range of 1:1 to 1.5:1), water is discharged from the through hole 272 of the nozzle 2 as... Figure 22 The water flow shown is in a continuous state (hereinafter referred to as "continuous state").

[0167] A continuous flow of water is also called a soft flow. Localized cleaning using a soft flow of water is called soft cleaning.

[0168] The following will further explain the situation regarding the generation of continuous water flow. When continuous water flow is generated, the following occurs: Figures 19 to 22 The actions shown are illustrated. Note that a continuous flow of water can be generated through... Figure 22 The indicated action begins.

[0169] like Figure 19 As shown, the main water flow W1 in the jetting state flows from the first inlet hole 251 into the upper part 252 above the first inlet hole 251. The main water flow W1 flowing into the upper part 252 passes through the upper part 252 and the air in the through hole 272 without contacting the inner circumferential surface of the upper part 252 or the inner circumferential surface 2720 of the through hole 272, and is discharged from the through hole 272. This state is called the "first discharge state".

[0170] In the first discharge state, the secondary water flow W2 flows into the first gap 201 from the second inlet hole 261 and accumulates in the first gap 201. Due to the surface tension of water, the secondary water flow W2 does not flow out through the air outlet hole 262. Therefore, in the first discharge state, the main water flow W1 flowing into the upper part 252 from the first inlet hole 251 is discharged through the through hole 272, but the secondary water flow W2 flowing into the first gap 201 from the second inlet hole 261 does not discharge through the through hole 272. In the first discharge state, the secondary water flow W2 flowing into the first gap 201 from the second inlet hole 261 accumulates in the first gap 201 and does not reach the second gap 202, where air remains.

[0171] Then, when the secondary water flow W2 fills the first gap 201, as... Figure 20 and Figure 21 As shown, the secondary water flow W2 passes through the second gap 202, and the secondary water flow W2 climbs over the upper end of the first cylinder 25 and flows into the interior of the first cylinder 25. In this embodiment, the secondary water flow W2 flows circumferentially into the interior of the first cylinder 25 from at least a portion of the upper end of the first cylinder 25.

[0172] At this time, the secondary water flow W2 collides with the main water flow W1, is pulled into the flow direction of the main water flow W1, and flows into the interior of the first cylinder 25. The interior of the first cylinder 25 is filled with the main water flow W1 and the secondary water flow W2. Then, as... Figure 22 As shown, water, a mixture of the main flow W1 and the secondary flow W2, is discharged from the through-hole 272. The water, a mixture of the main flow W1 and the secondary flow W2, is discharged from the through-hole 272 to have an opening 2722 at the lower end of the through-hole 272 (see...). Figure 5The water has a substantially the same thickness (in other words, cross-sectional area), thus creating a gap between the water and the inner circumferential surface 2720 through the hole 272. This state is referred to as the "second discharge state".

[0173] In the second discharge state, both the first and second conditions are met, thus generating an ejector effect. The first condition is that the flow velocity of the main water flow W1 in the first inlet 251 is higher than the flow velocities of the main water flow W1 and the auxiliary water flow W2 in the upper part 252 of the first cylinder 25, resulting in a velocity difference. The second condition is that the upper part 252 of the first cylinder 25 is filled with the main water flow W1 and the auxiliary water flow W2.

[0174] This creates a negative pressure at the downstream end of the first inlet orifice 251. However, this negative pressure is not the kind that causes air bubbles to mix in. Therefore, when a continuous water flow is generated, a jet stream can be produced, which is a continuous water flow that does not include mixed air bubbles. The continuous water flow remains in the space after being discharged from the through-hole 272.

[0175] (Second switching mode)

[0176] Figure 12 , Figure 13 and Figure 14 The relative positional relationship between the first component 6 and the second component 7 in the second switching mode is shown.

[0177] In the second switching mode, the main opening 71 of the second component 7 communicates only with the opening 610 in the main groove 61 of the first component 6. The main opening 71 of the second component 7 does not communicate with the bottomed groove 615 in the main groove 61 of the first component 6. The secondary opening 72 of the second component 7 communicates with a portion of the secondary groove 62 of the first component 6, but the portion does not include the bottomed groove 621.

[0178] In the second switching mode, the switching device 47 switches the flow ratio so that approximately 40% of the water in the main flow channel 21 flows into the secondary flow channel 22 of the nozzle 2. That is, the flow ratio is switched so that approximately 40% of the water in the first inlet hole 251 flows into the second inlet hole 261 of the nozzle 2. At this time, the flow ratio of the main water volume to the secondary water volume is 2:1 to 3:1.

[0179] When the second component 7 is in Figure 12In the relative rotation position shown, the cleaning water volume, which is the total of the main water volume and the auxiliary water volume, is at the third level. In the second switching mode, the cleaning water volume is relatively large. In this relative rotation position, the main opening 71 of the second component 7 communicates only with the opening 610 in the main groove 61 of the first component 6. The main opening 71 of the second component 7 communicates with a portion of the maximum width region R16, including the opening 610. Specifically, the main opening 71 of the second component 7 communicates with the end of the first region R11, which is continuous with the maximum width region R16, the maximum width region R16, and the end of the second region R12, which is continuous with the maximum width region R16.

[0180] The secondary opening 72 of the second component 7 communicates with the opening 620 of the secondary groove 62 of the first component 6, but does not communicate with the bottomed groove 621 and bottomed groove 624 of the secondary groove 62 of the first component 6. In detail, the secondary opening 72 of the second component 7 communicates with the end of the opening 620 and the end that is part of the bottomed groove 622 and communicates with the opening 620.

[0181] When the second component 7 is in Figure 13 At the relative rotational position shown, the cleaning water flow rate is at the second level, where the cleaning water volume is less than at the third level. In this relative rotational position, the main opening 71 of the second component 7 communicates only with the opening 610 in the main groove 61 of the first component 6, and specifically with a portion of the second region R12 of the opening 610. The secondary opening 72 of the second component 7 communicates with a portion of the bottomed groove 622 in the secondary groove 62 of the first component 6.

[0182] When the second component 7 is in Figure 14 At the relative rotational position shown, the cleaning water volume is at a first level where the cleaning water volume is less than the second level. At this relative rotational position, the main opening 71 of the second component 7 communicates with another portion of the second region R12 of the opening 610 of the first component 6. The area of ​​the other portion of the second region R12 of the opening 610 communicating with the main opening 71 of the second component 7 at the first level is smaller than its area at the second level. The secondary opening 72 of the second component 7 communicates with another portion of the bottomed groove 622 in the secondary groove 62 of the first component 6.

[0183] (The state of the discharged water flow)

[0184] When the switching device 47 is in the second switching mode (i.e., when the flow ratio of the main water volume to the auxiliary water volume is in the range of 2:1 to 3:1), water is discharged from the through hole 272 of the nozzle 2 as... Figure 25 The image shows a continuous water flow containing air bubbles (hereinafter referred to as "two-phase state").

[0185] Water flow in a two-phase state is also called water flow in a bubble state. Cleaning a localized area using water flow in a bubble state is called bubble cleaning.

[0186] The following will explain the situation of water flow in a two-phase state. When water flow in a two-phase state is generated, the process described in the continuous state first occurs. Figures 19 to 21 The actions shown are illustrated. Note that the generation of a two-phase water flow can be achieved through... Figure 22 The indicated action begins.

[0187] When water flow is generated in a two-phase state, such as Figure 23 As shown, water, which is a mixture of the main water flow W1 and the secondary water flow W2, diffuses from the interior of the through hole 272 to the inner circumferential surface 2720 and fills the interior of the through hole 272. The water, which is a mixture of the main water flow W1 and the secondary water flow W2, is discharged from the through hole 272 to have a thickness (in other words, cross-sectional area) that is substantially the same as the upper opening 2721 of the through hole 272.

[0188] In this discharge state, the first and second conditions are satisfied, thus generating an ejector effect. The first condition is that the flow velocity of the main water flow W1 in the first inlet hole 251 is higher than the flow velocities of the main water flow W1 and the secondary water flow W2 in the upper part 252 of the first cylinder 25, resulting in a velocity difference. The second condition is that the upper part 252 of the first cylinder 25 is filled with the main water flow W1 and the secondary water flow W2. This generates a negative pressure at the downstream end of the first inlet hole 251. Here, the third and fourth conditions are satisfied, thus generating an ejector effect. The third condition is that the flow velocity in the lower opening 2722 of the orifice 272 is higher than the flow velocity in the upper part above the lower opening 2722 of the orifice 272, resulting in a velocity difference. The fourth condition is that the orifice 272 is filled with the main water flow W1 and the secondary water flow W2. This generates a negative pressure in the lower opening 2722 of the orifice 272. In other words, when water flow in a two-phase state is generated, negative pressure is generated at two locations, namely the downstream end of the first inlet hole 251 and the lower end opening 2722 of the through hole 272. Therefore, air is drawn in through the air inlet hole 262.

[0189] like Figure 24 As shown, air drawn in through air inlet 262 passes through the first gap 201 and the second gap 202, and flows into the interior of the upper part 252 of the first cylinder 25 by being pulled to a position where negative pressure is generated at the downstream end of the first inlet hole 251. The air drawn in through air inlet 262 collides with the main water flow W1 by being pulled to a position where negative pressure is generated at the lower opening 2722 of the through hole 272. Then, the air drawn in through air inlet 262 is pulled into the interior of the through hole 272 by the flow of the main water flow W1.

[0190] Air flowing towards the negative pressure location at the lower opening 2722 of the through hole 272 forms tiny bubbles through the main water flow W1 and mixes with the main water flow W1 and the secondary water flow W2 in the through hole 272.

[0191] Here, when a two-phase water flow is generated, negative pressure is created at two locations: the downstream end of the first inlet orifice 251 and the lower opening 2722 of the through orifice 272. Therefore, the air drawn in through the air inlet 262 is distributed to and moves toward these two locations. Consequently, the air drawn in through the air inlet 262 is unlikely to reach the location where negative pressure is generated at the downstream end of the first inlet orifice 251, and the elimination of negative pressure is suppressed, thus maintaining the state of air being drawn in through the air inlet 262. Therefore, the state in which fine bubbles are uniformly mixed in the main water flow W1 and the secondary water flow W2 in the through orifice 272 is maintained.

[0192] Furthermore, when a two-phase water flow is generated, the air drawn to the downstream end of the first inlet hole 251, where a negative pressure is created, is suppressed by the water pressure of the secondary water flow W2. Similarly, in this respect, the state in which fine bubbles are uniformly mixed in the main water flow W1 and the secondary water flow W2 in the through hole 272 is maintained.

[0193] As mentioned above, this resulted in the following: Figure 25 The water flow shown is in a two-phase state.

[0194] (Third switching mode)

[0195] Figure 15 , Figure 16 and Figure 17 The relative positional relationship between the first component 6 and the second component 7 in the third switching mode is shown.

[0196] In the third switching mode, the main opening 71 of the second component 7 communicates with the third region R13 of the opening 610 in the main groove 61 of the first component 6. The secondary opening 72 of the second component 7 communicates with a portion of the secondary groove 62 of the first component 6, but the portion does not include the opening 620.

[0197] In the third switching mode, the switching device 47 switches the flow ratio so that approximately 25% of the water in the main flow channel 21 flows into the secondary flow channel 22 of the nozzle 2. That is, the flow ratio is switched so that approximately 25% of the water in the first inlet hole 251 flows into the second inlet hole 261 of the nozzle 2. At this time, the flow ratio of the main water volume to the secondary water volume is 3:1 to 7:1.

[0198] When the second component 7 is in Figure 15In the relative rotation position shown, the total cleaning water volume, which is the sum of the main water volume and the auxiliary water volume, is at a relatively small first level in the third switching mode. In this relative rotation position, the main opening 71 of the second component 7 communicates with the end of the third region R13 of the opening 610 of the main groove 61 of the first component 6. The secondary opening 72 of the second component 7 communicates with a portion of the bottomed groove 623 in the secondary groove 62 of the first component 6, which is shallower than the bottomed groove 622.

[0199] When the second component 7 is in Figure 16 At the relative rotational position shown, the cleaning water volume is at a second level, where the cleaning water volume is greater than the first level. In this relative rotational position, the main opening 71 of the second component 7 communicates with another portion of the third region R13 of the opening 610 in the main groove 61 of the first component 6. The area of ​​this other portion of the third region R13 of the opening 610 communicating with the main opening 71 of the second component 7 at the second level is greater than its area at the first level. The secondary opening 72 of the second component 7 communicates with another portion of the bottomed groove 623 in the secondary groove 62 of the first component 6.

[0200] When the second component 7 is in Figure 17 At the relative rotational position shown, the cleaning water volume is at a third level, which is greater than the second level. In this relative rotational position, the main opening 71 of the second component 7 communicates with a portion of the third region R13 of the opening 610 in the main groove 61 of the first component 6, and with the end of the bottomed groove 612 (specifically, the end of the inclined surface 618). The area of ​​the portion of the third region R13 of the opening 610 communicating with the main opening 71 of the second component 7 at the third level is greater than its area at the second level. The secondary opening 72 of the second component 7 communicates with a portion of the bottomed groove 623 in the secondary groove 62 of the first component 6.

[0201] (The state of the discharged water flow)

[0202] When the switching device 47 is in the third switching mode (i.e., when the flow ratio of the main water volume to the auxiliary water volume is in the range of 3:1 to 7:1), water is discharged from the through hole 272 of the nozzle 2. The water flow is in a state where it becomes an intermittent flow in space after being discharged as a continuous flow (hereinafter referred to as the "intermittent state") (see See Figure 29 ).

[0203] Intermittent water flow is also known as high-intensity pulsed water flow. Localized cleaning using high-intensity pulsed water flow is also called high-intensity pulsed cleaning.

[0204] The following will describe the generation of intermittent water flow (i.e., water flow in an intermittent state) in space. When intermittent water flow is generated, the process described in the continuous state first occurs... Figures 19 to 21The actions shown are repeated during the intermittent water flow, specifically the first and second discharge states described in the continuous state.

[0205] In the second discharge state, both the first and second conditions are met, thus generating an ejector effect. The first condition is that the flow velocity of the main water flow W1 in the first inlet hole 251 is higher than the flow velocities of the main water flow W1 and the auxiliary water flow W2 in the upper part 252 of the first cylinder 25, resulting in a velocity difference. The second condition is that the first cylinder 25 is filled with the main water flow W1 and the auxiliary water flow W2. This creates a negative pressure at the downstream end of the first inlet hole 251, thus air is drawn in through the air inlet hole 262.

[0206] When intermittent water flow is generated, such as Figure 26 As shown, the air drawn in through the air inlet 262 flows into the interior of the first cylinder 25 through the first gap 201 and the second gap 202, and is drawn into the interior of the through hole 272 by the negative pressure generated at the downstream end of the first inlet hole 251.

[0207] Next, the air flowing into the interior of the upper part 252 of the first cylinder 25 and through the orifice 272 diffuses to surround the main water flow W1 and block the secondary water flow W2 from flowing into the main water flow W1, as shown. Figure 27 As shown. Furthermore, the elimination of the state in which the interior of the upper part 252 of the first cylinder 25 is filled with the main water flow W1 and the auxiliary water flow W2 causes the ejector effect to fail, and the intake action ends, returning to the first discharge state. Therefore, the flow, which is a coarse jet stream formed by the merging of the auxiliary water flow W2 and the main water flow W1, is switched to a fine jet stream consisting only of the main water flow W1. In this way, the first discharge state and the second discharge state are repeated.

[0208] Figure 28 The diagram shows the state 1 of the water flow in space after the water is discharged from nozzle 2. Figure 29 The diagram illustrates state 2 of the water flow in the space following the water flow exiting nozzle 2. Each of these diagrams shows a first jet of water W10 in a first discharge state, corresponding only to the main water flow W1 discharged from through hole 272 to the air. A second jet of water W12 is in a second discharge state, corresponding to the water discharged together from through hole 272 from both the main flow W1 and the secondary flow W2. The flow velocity of the first jet of water W10 is higher than that of the second jet of water W12. Therefore, the first jet of water W10 separates from the subsequent second jet of water W12 and forms a water mass together with the preceding second jet of water W12, such as... Figure 29 As shown. In this way, the water discharged from nozzle 2 forms an intermittent water flow in the space.

[0209] By using the hygienic cleaning device 1 and changing the flow ratio of the main water volume to the auxiliary water volume through the switching device 47, three types of water flow can be selectively discharged from the common passage hole 272 of the nozzle 2. Furthermore, using the hygienic cleaning device 1, for each of the three types of water flow, a first level with a relatively small cleaning volume, a second level with a medium cleaning volume, and a third level with a relatively large cleaning volume can be selectively achieved, and can be precisely tailored to the preferences of the user sitting on the seat 30.

[0210] (Sequence of changes in water flow state)

[0211] Figure 18 This is a diagram showing the relationship between the rotational position of the second component 7 and the water flow state. In this embodiment, as the second component 7 rotates relative to the first direction d1, from right to left... Figure 18 As shown, the state can be repeatedly switched between cleaning, rear washing, and front (bidet) washing. Additionally, when the second component 7 rotates relative to the first direction d1, from left to right... Figure 18 As shown, the status can be switched repeatedly between cleaning, front cleaning, and rear cleaning.

[0212] In detail, during the rear cleaning process, as the second component 7 rotates relative to the first component d1, the water flow state is sequentially switched to a continuous state, a two-phase state, and an intermittent state. Furthermore, in the continuous state, as the second component 7 rotates relative to the first component d1, the horizontal flow rate sequentially switches to a first level, a second level, and a third level. That is, while maintaining the continuous state, the cleaning water flow rate gradually increases. In the continuous state, as the second component 7 rotates relative to the first component d1, the horizontal flow rate sequentially switches to a third level, a second level, and a first level. That is, while maintaining the two-phase state, the cleaning water flow rate gradually decreases. In the intermittent state, as the second component 7 rotates relative to the first component d1, the horizontal flow rate sequentially switches to a first level, a second level, and a third level. That is, while maintaining the intermittent state, the cleaning water flow rate gradually increases. When the second component 7 rotates relative to the first component d1 in the opposite direction, the switching is performed in the reverse order.

[0213] During the front cleaning process, the cleaning water volume gradually decreases as the second component 7 rotates relative to the first direction d1. When the second component 7 rotates relative to the first direction d1, the cleaning water volume gradually decreases as the relative rotation occurs.

[0214] By changing the relative rotational position of the second component 7 relative to the first component 6, the hygienic cleaning device 1 of this embodiment can selectively generate water flow in multiple states, and the flow rate of the water flow can be adjusted during rear cleaning. Specifically, changing the relative rotational position of the second component 7 relative to the first component 6 allows continuous water flow to be discharged from the nozzle 2 at multiple levels of cleaning water volume, allows two-phase water flow to be discharged from the nozzle 2 at multiple levels of cleaning water volume, and allows intermittent water flow to be discharged from the nozzle 2 at multiple levels of cleaning water volume. Furthermore, rear cleaning, front cleaning, and general cleaning can be selectively achieved.

[0215] Furthermore, the sanitary cleaning device 1 of this embodiment can adjust the water flow rate (i.e., switch between the first, second, and third levels) without installing a flow regulating pump. Therefore, it does not produce the driving noise of a flow regulating pump and does not require space for installing a flow regulating pump.

[0216] (Modified Example)

[0217] Next, variations of the above-described sanitary cleaning equipment 1 will be described. The following variations can be combined with each other accordingly.

[0218] The state of the water flow discharged from nozzle 2 of the sanitary cleaning equipment can be selected from three states: continuous, two-phase, and intermittent. However, it can also be selected from multiple states other than the three states, including two of the three states, multiple states other than the two states of the three states, or multiple states other than one of the three states. For example, nozzle 2 is configured to selectively discharge only water flows in the two-phase and intermittent states. Nozzle 2 does not necessarily have to be able to discharge all water flows in the continuous, two-phase, and intermittent states.

[0219] The structure of nozzle 2 is not limited to 41 and Figure 5 The structure shown is not, but rather at least constructed such that the water flow switches between multiple states according to the change in the flow ratio of the main water volume to the auxiliary water volume.

[0220] In the first component 6 of the sanitary cleaning device 1, a bidet trough 63 and a cleaning trough 64 are provided on the outer periphery 68. However, at least one of the bidet trough 63 or the cleaning trough 64 may be provided on another part of the first component 6. Alternatively, there may be cases where at least one of the bidet trough 63 or the cleaning trough 64 is not provided on the first component 6.

[0221] In the first component 6 of the sanitary cleaning device 1, a secondary groove 62 is provided for the inner peripheral portion 69, but the secondary groove 62 can be provided for another part of the first component 6. For example, the secondary groove 62 can be provided for the outer peripheral portion 68, and together with this configuration, a secondary opening 72 of the second component 7 can be provided for the outer peripheral portion 78.

[0222] In the first component 6 of the sanitary cleaning device 1, in addition to the opening 620, the secondary tank 62 also includes a bottom tank 625. However, the secondary tank 62 may be configured to have only the opening 620 and not the bottom tank 625.

[0223] In the first component 6 of the sanitary cleaning device 1, the bottomed tank portion 625 of the auxiliary tank portion 62 has four bottomed tanks 621, 622, 623, and 624 that differ from each other in depth. However, the number of bottomed tanks that differ from each other in depth is not limited to this example. The bottomed tank portion 625 may have two bottomed tanks, three bottomed tanks, or five or more bottomed tanks, or the bottomed tank portion 625 may consist of a single bottomed tank.

[0224] In the first component 6 of the sanitary cleaning device 1, a main groove 61 is provided for the outer peripheral portion 68, but the main groove 61 can be provided for another part of the first component 6. For example, the main groove 61 can be provided for the inner peripheral portion 69, and together with this configuration, the main opening 71 of the second component 7 can be provided for the inner peripheral portion 79.

[0225] In the first component 6 of the sanitary cleaning device 1, in addition to the opening 610, the main tank portion 61 also includes a bottom tank portion 615. However, the main tank portion 61 may be configured to have only the opening 610 and not include the bottom tank portion 615.

[0226] In the first component 6 of the sanitary cleaning device 1, the bottomed trough portion 615 of the main trough portion 61 has two bottomed troughs 611 and 612 that are different from each other in terms of depth. However, the number of bottomed troughs that are different from each other in depth is not limited to this example. The bottomed trough portion 615 may have more than three bottomed troughs, or the bottomed trough portion 625 may consist of a single bottomed trough.

[0227] In the first component 6 of the sanitary cleaning device 1, the opening 610 of the main tank 61 is configured to gradually change its width along the circumferential direction. However, the change in the opening width of the opening 610 is not limited to this example. For example, the opening width may change gradually, or the opening width may be constant.

[0228] (Summarize)

[0229] The sanitary cleaning device 1 according to a first aspect of this disclosure includes: a nozzle 2 configured to discharge water flow toward a local area of ​​a seated person; and a switching device 47 configured to switch modes for supplying water flow to the nozzle 2. The nozzle 2 includes a nozzle head 20, a main flow channel 21 for supplying a main water flow W1 to the nozzle head 20, and a secondary flow channel 22 for supplying a secondary water flow W2 that merges with the main water flow W1 to the nozzle head 20. The switching device 47 includes a first member 6 and a second member 7 configured to rotate relative to the first member 6. The first member 6 includes a main channel 61 having an opening 610 connected to the main flow channel 21 and a secondary channel 62 having an opening 620 connected to the secondary flow channel 22. The second member 7 has: a main opening 71 configured to communicate with the main channel 61 of the first member 6 according to the relative rotational position of the second member 7 relative to the first member 6; and a secondary opening 72 configured to communicate with the secondary channel 62 of the first member 6 according to the relative rotational position of the second member 7 relative to the first member 6. In the first aspect of the sanitary cleaning equipment 1, the main water volume flowing into the main channel 21 through the main opening 71 of the second component 7 and the main trough 61 of the first component 6 is changed by the relative rotational position of the second component 7.

[0230] In this respect, changing the relative rotational position of the second component 7 with respect to the first component 6 alters at least one of the main water flow or the auxiliary water flow, enabling the selective generation and regulation of water flow in multiple states. In other words, the sanitary cleaning device 1 of the first aspect enables the selective generation and regulation of water flow in multiple states without the need for a flow regulating pump. Therefore, the sanitary cleaning device 1 of the first aspect does not emit the driving noise of a flow regulating pump and does not require space for installing a flow regulating pump.

[0231] According to the present disclosure and having the first aspect of the construction, the sanitary cleaning device 1 is configured such that the state of the water flow discharged from the nozzle 2 switches between multiple states depending on a change in at least one of the main water flow or the auxiliary water flow. The multiple states include one or both of a two-phase state and an intermittent state, in which a continuous flow including air bubbles mixed therein is maintained in the air, and in the intermittent state, the continuous flow changes to an intermittent water flow after discharge.

[0232] By changing the relative rotational position of the second component 7 with respect to the first component 6, the state of the water flow can be switched between multiple states, including a two-phase state and an intermittent state, and the flow rate of the water flow can be adjusted.

[0233] The sanitary cleaning device 1 of the third aspect of the present disclosure and having the first aspect of the construction is configured such that changing at least one of the main water flow or the auxiliary water flow switches the state of the water flow discharged from the nozzle 2 in multiple states. The multiple states include a continuous state, a two-phase state, and an intermittent state. In the continuous state, a continuous flow is maintained in the air. In the two-phase state, a continuous flow including air bubbles mixed therein is maintained in the air. In the intermittent state, the continuous flow changes to an intermittent water flow after discharge.

[0234] By changing the relative rotational position of the second component 7 with respect to the first component 6, the state of the water flow can be switched between multiple states, including continuous state, two-phase state and intermittent state, and the flow rate of the water flow can be adjusted.

[0235] In the hygienic cleaning apparatus 1 according to the fourth aspect of this disclosure, as described in any of the first to third aspects, the nozzle 2 further includes a bidet flow channel 23 and a cleaning flow channel 24. The first member 6 further includes a bidet groove 63 having an opening 630 connected to the bidet flow channel 23 and a cleaning groove 64 having an opening 640 connected to the cleaning flow channel 24. The main opening 71 of the second member 7 is configured to selectively communicate with one of the main groove 61, the bidet groove 63, and the cleaning groove 64, depending on the relative rotational position of the second member 7.

[0236] In this respect, by changing the relative rotational position of the second component 7 with respect to the first component 6, water flow in multiple states can be selectively generated, and the flow rate of the water flow can be adjusted. In addition, front cleaning and rinsing of the nozzle 2 can be selectively performed.

[0237] In the sanitary cleaning apparatus 1 of the fifth aspect, which is constructed according to the present disclosure and has the fourth aspect, a main groove 61, a bidet groove 63, and a cleaning groove 64 are provided for the outer periphery 68 of the first component 6. A secondary groove 62 is provided for the inner periphery 69 of the first component 6.

[0238] In this respect, a secondary groove 62 is provided for the inner circumference 69 of the first component 6 instead of the outer circumference 68. Therefore, the group of the first component 6 and the second component 7 can effectively achieve water flow state selection and flow regulation, front cleaning and nozzle cleaning.

[0239] In the sanitation cleaning apparatus 1 according to the sixth aspect of the present disclosure in any of the first to fifth aspects, the secondary tank 62 further includes a bottomed tank 625 extending circumferentially from the opening 620 of the secondary tank 62.

[0240] In this respect, the connection between the opening 620 of the first component 6 and the secondary opening 72 of the second component 7 or the connection between the bottomed groove portion 625 of the first component 6 and the secondary opening 72 of the second component 7 can be selected based on the relative rotational position of the second component 7. Therefore, the amount of secondary water supplied through the secondary groove portion 62 can be precisely set according to the relative rotational position of the second component 7.

[0241] In the sanitary cleaning apparatus 1 according to the present disclosure and having a sixth aspect of construction, the bottomed tank portion 625 of the auxiliary tank portion 62 has a plurality of bottomed tanks 621, 622, 623 and 624 that are different from each other in depth.

[0242] In this respect, depending on the relative rotational position of the second component 7, the configuration can be either that the opening 620 of the first component 6 communicates with the secondary opening 72 of the second component 7, or that any one of the multiple bottomed grooves 621, 622, 623, and 624 of the first component 6 communicates with the secondary opening 72 of the second component 7. Therefore, the amount of secondary water supplied through the secondary groove 62 can be set more precisely based on the relative rotational position of the second component 7.

[0243] In the eighth aspect of the sanitary cleaning apparatus 1, which is constructed according to the present disclosure and has any one of the first to seventh aspects, the main tank 61 further includes a bottomed tank 615 extending circumferentially from the opening 610 of the main tank 61.

[0244] In this respect, the connection between the opening 610 of the first component 6 and the main opening 71 of the second component 7 or the connection between the bottomed groove portion 615 of the first component 6 and the main opening 71 of the second component 7 can be selected based on the relative rotational position of the second component 7. Therefore, the main water volume supplied through the main groove portion 61 can be precisely set according to the relative rotational position of the second component 7.

[0245] In the sanitation cleaning apparatus 1 of the ninth aspect according to the present disclosure and having the eighth aspect of construction, the bottomed tank portion 615 of the main tank portion 61 has a plurality of bottomed tanks 611 and 612 that are different from each other in depth.

[0246] In this respect, depending on the relative rotational position of the second component 7, the connection between the opening 610 of the first component 6 and the main opening 71 of the second component 7 can be selected, or the connection between any one of the multiple bottomed grooves 611 and 612 of the first component 6 and the main opening 71 of the second component 7 can be selected. Therefore, the main water volume supplied through the main groove 61 can be set more precisely according to the relative rotational position of the second component 7.

[0247] In the sanitary cleaning apparatus 1 of the tenth aspect, which is constructed according to the present disclosure and has any one of the first to ninth aspects, the opening 610 of the main tank 61 has an opening width that varies circumferentially.

[0248] In this respect, the narrow portion of the opening 610 of the first component 6 is connected to the main opening 71 of the second component 7, or the wide portion of the opening 610 of the first component 6 is connected to the main opening 71 of the second component 7, depending on the relative rotational position of the second component 7. Therefore, the main water volume supplied through the main tank 61 can be precisely set according to the relative rotational position of the second component 7.

[0249] This disclosure is not limited to the embodiments described above. For example, another embodiment may be implemented by combining the constituent elements described in this specification as needed or by removing some constituent elements. Furthermore, this disclosure includes variations that can be obtained by making various modifications to the foregoing embodiments that can be conceived by those skilled in the art within the spirit of this disclosure, that is, without departing from the interpretation of the wording set forth in the claims.

[0250] List of reference numerals

[0251] 1. Sanitary cleaning equipment

[0252] 2 nozzles

[0253] 20 Nozzle Head

[0254] 201 First Gap

[0255] 202 Second Gap

[0256] 21 Mainstream Roads

[0257] 22 Secondary flow channels

[0258] 23. Bidet flow channel

[0259] 24 Cleaning the flow channel

[0260] 25 First tube section

[0261] 250 central axis

[0262] 251 First Inlet Hole

[0263] Part 252

[0264] 26 Second tube section

[0265] 260 Central Axis

[0266] 261 Second Inlet Hole

[0267] 262 vents

[0268] 27 cover

[0269] 270 cover body

[0270] 271 Cylinder section

[0271] 272 Through the hole

[0272] 2720 ​​Inner circumferential surface

[0273] 2721 Open at the top

[0274] 2722 Open at the bottom

[0275] 28 First Stream

[0276] 29 Second Flow Channel

[0277] 3 Toilets

[0278] 30 seats

[0279] 31 Control device

[0280] 32 Toilet bowl

[0281] 4. Water circuit

[0282] 40 Water supply connection port

[0283] 41 Filter

[0284] 42 Water-stop solenoid valve

[0285] 43 Pressure reducing valve

[0286] 44 Vacuum Circuit Breaker

[0287] 45 Heating device

[0288] 450 Buffer Tank

[0289] 46 Flow control valve

[0290] 47 Switching device

[0291] 48 Exhaust pipe

[0292] 5. Nozzle body

[0293] 6 First Component

[0294] 60 Central axis

[0295] 610 Opening

[0296] 611 has a bottom groove

[0297] 612 has a bottom groove

[0298] 615 has a bottom groove.

[0299] 618 Inclined Surface

[0300] 61 Main Channel Section

[0301] 62 Sub-slot

[0302] 620 opening

[0303] 621 has a bottom groove

[0304] 622 has a bottom groove

[0305] 623 has a bottom groove

[0306] 624 has a bottom groove

[0307] 625 bottom groove part

[0308] 628 Inclined Surface

[0309] 629 Inclined Surface

[0310] 63. Bidet tray

[0311] 630 opening

[0312] 631 has a bottom groove

[0313] 632 has a bottom groove

[0314] 635 Bottom groove part

[0315] 64 Cleaning tank section

[0316] 640 opening

[0317] 641 has a bottom groove

[0318] 642 has a bottom groove

[0319] 645 bottom groove part

[0320] 648 Inclined Surface

[0321] 65 Center Groove

[0322] 661 First Surface

[0323] 662 Second Surface

[0324] 68 Peripheral part

[0325] 69. Inner Peripheral Region

[0326] 7 Second component

[0327] 70 Central axis

[0328] 71 Main opening

[0329] 72 pairs of openings

[0330] 75 center hole

[0331] 78 Peripheral part

[0332] 79. Inner Peripheral Region

[0333] 81 motor

[0334] 814 Output Shaft

[0335] 82 Force-applying components

[0336] 85 Intermediate components

[0337] 851 Protrusion

[0338] 87 tubes

[0339] d1 First direction

[0340] D1 One direction

[0341] G1 length

[0342] L1 inner diameter

[0343] L2 diameter

[0344] L3 diameter

[0345] R11 First Area

[0346] R12 Second Region

[0347] R13 Third Region

[0348] R16 Maximum Width Area

[0349] S1 cross-sectional area

[0350] S2 cross-sectional area

[0351] S3 cross-sectional area

[0352] S4 cross-sectional area

[0353] W1 Main Flow

[0354] W2 secondary water flow

[0355] W10 First Flight Water

[0356] W12 Second Flight Water

Claims

1. A hygienic cleaning device, comprising: A nozzle, designed to direct water flow toward a specific area of ​​a seated person's body; and A switching device configured to switch between modes for delivering the water flow to the nozzle. The nozzle includes: Nozzle head; Main channel, which is used to deliver the main water flow to the nozzle head; and A secondary flow channel, used to supply a secondary flow to the nozzle head to merge with the main flow, the switching device comprising: First component; and The second component is configured to rotate relative to the first component. The first component includes: The main channel portion has an opening connected to the main channel; and The secondary channel has an opening that connects to the secondary flow channel. The second component has: The main opening is configured to communicate with the main groove of the first member based on the relative rotational position of the second member relative to the first member; and The secondary opening is configured to communicate with the secondary groove of the first component based on the relative rotational position of the second component relative to the first component. At least one of the main water volume flowing into the main channel through the main opening of the second component and the main groove of the first component, or the secondary water volume flowing into the secondary channel through the secondary opening of the second component and the secondary groove of the first component, changes according to the relative rotational position of the second component.

2. The sanitary cleaning equipment according to claim 1, wherein, The sanitary cleaning equipment is configured to switch the state of the water flow discharged from the nozzle between multiple states based on changes in at least one of the main water volume or the auxiliary water volume between multiple states, and The plurality of states includes two or one of the following states: Maintaining a two-phase state in air, including a continuous flow of bubbles mixed therein, and The continuous flow becomes an intermittent flow after discharge.

3. The sanitary cleaning equipment according to claim 1, wherein, The sanitary cleaning equipment is configured such that the state of the water flow discharged from the nozzle can be switched between multiple states by changing at least one of the main water flow or the auxiliary water flow, and The various states include: To maintain a continuous flow in the air. Maintaining a two-phase state in air, including a continuous flow of bubbles mixed therein, and The continuous flow becomes an intermittent flow after discharge.

4. The sanitary cleaning equipment according to any one of claims 1 to 3, wherein, The nozzle also includes: bidet flow channel, and Clean the flow channel, The first component also includes: A bidet basin having an opening connected to the bidet flow channel; and The cleaning tank has an opening connected to the cleaning flow channel, and The main opening of the second component is configured to selectively communicate with one of the main groove, the bidet groove, and the cleaning groove, depending on the relative rotational position of the second component.

5. The sanitary cleaning equipment according to claim 4, wherein, The main groove, the bidet groove, and the cleaning groove are provided on the outer periphery of the first component, and The secondary groove is provided on the inner periphery of the first component.

6. The sanitary cleaning equipment according to any one of claims 1 to 5, wherein, The secondary groove also includes a bottomed groove extending circumferentially from the opening of the secondary groove.

7. The sanitary cleaning equipment according to claim 6, wherein, The bottomed groove of the sub-groove has multiple bottomed grooves with different depths.

8. The sanitary cleaning equipment according to any one of claims 1 to 7, wherein, The main groove also includes a bottomed groove extending circumferentially from the opening of the main groove.

9. The sanitary cleaning equipment according to claim 8, wherein, The bottomed groove of the main groove has multiple bottomed grooves with different depths.

10. The sanitary cleaning equipment according to any one of claims 1 to 9, wherein, The opening of the main groove has a circumferentially varying opening width.

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