JP7498009B2 - Sanitary Cleaning Equipment - Google Patents

Description

This disclosure relates to a sanitary cleaning device.

Conventionally, in a sanitary washing device for washing a person seated on a toilet seat, a device provided with a nozzle washing means for washing a washing nozzle has been disclosed (see, for example, Patent Document 1). Patent Document 1 discloses a configuration for washing a washing nozzle using a washing chamber having a cross section that is roughly U-shaped or C-shaped downward.

JP 2007-332579 A

The cleaning chamber in the above-mentioned sanitary cleaning device can only clean the cleaning nozzle from above, and cannot clean the cleaning nozzle from below. For this reason, for example, when cleaning a human body with the cleaning nozzle, if dirt adhering to the cleaning nozzle moves around and adheres to the underside of the cleaning nozzle, the dirt cannot be removed.

The present disclosure aims to provide a sanitary washing device that can wash the entire circumference of the washing nozzle.

The present disclosure relates to a sanitary washing device that includes one or more nozzles that have a water outlet and are movable forward and backward relative to a main body, and a washing unit that has multiple water outlet holes that discharge washing water onto at least the upper and lower surfaces of the nozzle.

FIG. 1 is a perspective view of a toilet apparatus according to an embodiment of the present disclosure. FIG. 1 is a perspective view of a sanitary washing device according to a first embodiment of the present disclosure. FIG. 2 is a perspective view of the vicinity of a cleaning unit according to the first embodiment of the present disclosure. FIG. 2 is a front view of the cleaning unit according to the first embodiment of the present disclosure. FIG. 11 is a front view of a cleaning unit according to a second embodiment of the present disclosure. 5 is a cross-sectional view taken along line AA in FIG. 4. 6 is a cross-sectional view taken along line BB in FIG. 5.

As shown in FIG. 1, the sanitary washing device 10 according to this embodiment is attached to a toilet device 100. As shown in FIG. 1, the toilet device 100 has a toilet bowl 11, a toilet seat 12, a toilet lid 13, a functional unit 14, and an operation panel 15. In the following description of this specification, the front direction as seen by a user of the toilet device 100 seated on the toilet seat 12 of the toilet device 100 is defined as the front, and the rear direction as the rear. The vertical direction from the floor side end of the toilet bowl 11 toward the toilet seat 12 is defined as the up direction, and the opposite direction as the down direction.

The toilet bowl 11 is a Western-style toilet bowl with a recess that is open at the top. The toilet seat 12 is a roughly annular seating surface that is attached along the opening of the toilet bowl 11. The toilet lid 13 is an openable and closable lid that covers the opening of the toilet seat 12. The functional unit 14 is located above and at the rear of the toilet bowl 11, and is a part where a control unit that executes various functions of the toilet device 100 is provided. The sanitary washing device 10 is attached to the functional unit 14, together with the toilet seat 12 and toilet lid 13.

The operation panel 15 extends from the functional unit 14 and is disposed on the side of the toilet seat 12 on the functional unit 14 side. The operation panel 15 is configured to allow the user to perform the flushing operation of the toilet bowl 11, the flushing operation of the sanitary washing device 10, and the selection of various operation modes for the flushing operation of the sanitary washing device 10.

<Hygienic cleaning device>
The sanitary washing device 10 is disposed on the rear side of the opening of the toilet seat 12 and in the front side of the functional part 14. As shown in FIG. 2 , the sanitary washing device 10 has a washing unit 1, a nozzle 5 consisting of a first nozzle 51 and a second nozzle 52, a housing 6 as a main body, a nozzle drive mechanism 7, and a water supply pump 8.

The cleaning unit 1 cleans the nozzle 5 by spraying cleaning water onto the nozzle 5. For example, the cleaning unit 1 sprays cleaning water onto the nozzle 5 when the nozzle 5 advances and retreats from the housing 6 after advancing into the housing 6 and spraying water thereon. The cleaning unit 1 is a frame-shaped body having an opening through which the nozzle 5 can be inserted, and the rear end of the cleaning unit 1 is fixed in contact with the housing 6. The configuration of the cleaning unit 1 will be described in detail later.

The first nozzle 51 is, for example, a nozzle for anal washing. The second nozzle 52 is, for example, a nozzle for a bidet. The first nozzle 51 and the second nozzle 52 are arranged in a pair on the left and right. The first nozzle 51 and the second nozzle 52 are arranged parallel to each other and inclined downward from the rear to the front, and are provided so as to be movable forward and backward with respect to the housing 6. The housing 6 is provided with a shutter (not shown). When the first nozzle 51 and the second nozzle 52 move forward and backward with respect to the housing 6, the shutter is opened and closed.

The first nozzle 51 and the second nozzle 52 are formed long with the inclination direction as the longitudinal direction. In this embodiment, the first nozzle 51 and the second nozzle 52 are formed in a cylindrical shape. However, this is not limited to this. The first nozzle 51 and the second nozzle 52 are formed of, for example, a metal material, a resin material, a ceramic material, etc. A number of teeth are formed in a row on the underside of the first nozzle 51 and the second nozzle 52 to move each nozzle forward and backward.

As shown in FIG. 3, the first nozzle 51 and the second nozzle 52 each have a water outlet 51a and a water outlet 52a. One or more water outlets 51a and 52a are formed on the upper surface of the tip side of the first nozzle 51 and the second nozzle 52, respectively.

A water supply hose 53 is connected to each of the first nozzle 51 and the second nozzle 52. A water supply pump 8 is connected to the water supply hose 53, and cleaning water is supplied from a water supply source (not shown). The water outlet 51a and the water outlet 52a discharge the cleaning water supplied via the water supply hose 53.

The first nozzle 51 and the second nozzle 52 are each individually advanced into the housing 6 by the nozzle driving mechanism 7. At this time, the cleaning unit 1 cleans the first nozzle 51 and the second nozzle 52. Next, the first nozzle 51 and the second nozzle 52, while advanced to a predetermined position, perform an operation of discharging cleaning water from the water outlet 51a and the water outlet 52a. After the above operation is completed, the first nozzle 51 and the second nozzle 52 are retracted into the housing 6 by the nozzle driving mechanism 7. At this time, the cleaning unit 1 cleans the first nozzle 51 and the second nozzle 52. After that, the first nozzle 51 and the second nozzle 52 are accommodated inside the housing 6.

As shown in FIG. 6, the tip of the first nozzle 51 is positioned rearward of the front end of the cleaning unit 1 when the first nozzle 51 is housed in the housing 6. The same is true for the tip of the second nozzle 52.

The housing 6 is the main body of the sanitary washing device 10. The housing 6 accommodates the nozzle 5 so that it can move back and forth. The housing 6 has an upper housing 61 and a lower housing 62. A space capable of accommodating the nozzle 5 is formed between the upper housing 61 and the lower housing 62. The nozzle 5 is accommodated in this space when not in use. The top surface of the housing 6 is covered with a nozzle cover 63.

The nozzle drive mechanism 7 has a motor and a pinion (both not shown). The motor is driven by a drive signal from a control unit (not shown). The pinion is a disk-shaped member having multiple teeth that mesh with multiple teeth formed on the underside of the nozzle 5, and rotates when driven by the motor. The rotation of the pinion causes the nozzle 5 to move forward and backward relative to the housing 6.

The water supply pump 8 is connected to the nozzle 5 via a water supply hose 53, and supplies water to the nozzle 5 from a water supply source (not shown). There are no particular limitations on the type of water supply pump 8. The water supply pump 8 is, for example, a gear pump. The gear pump supplies cleaning water to the nozzle 5 by rotating gears with a motor. The temperature and strength of the water supplied from the water supply pump 8 to the nozzle 5 can be controlled by a control unit (not shown).

<Cleaning unit>
First Embodiment
The washing unit 1 according to the first embodiment will be described below. As shown in Figures 3 and 4, the washing unit 1 has a first water discharger 3 and a linear water discharger 4 consisting of a first linear water discharger 41 and a second linear water discharger 42. The first water discharger 3 has water discharge holes 34a and 34b that discharge wash water. In this embodiment, the washing unit 1 further has a second water discharger 2 in addition to the first water discharger 3. The washing unit 1 is formed, for example, from resin.

The first water discharger 3 and the second water discharger 2 are frame-shaped bodies having openings through which the first nozzle 51 and the second nozzle 52 can be inserted. The cleaning water supplied from the first water discharger 3 is discharged to the first nozzle 51 and the second nozzle 52 via the first linear water discharger 41 and the second linear water discharger 42, respectively. The discharged cleaning water is discharged from directly above the first nozzle 51 and the second nozzle 52 so as to directly hit the first nozzle 51 and the second nozzle 52. In this specification, directly above the first nozzle 51 means being located on a line extending vertically upward from the central axis of the first nozzle 51 in a front view. The same applies to the second nozzle 52.

The opening in the second water discharger 2 through which the first nozzle 51 and the second nozzle 52 can be inserted has a sufficient gap between the first nozzle 51 and the second nozzle 52 when the first nozzle 51 and the second nozzle 52 are inserted. For example, as shown in FIG. 4, the first nozzle 51 has a distance L3 on the side and a distance L4 above when inserted into the second water discharger 2. The distances L3 and L4 may be, for example, about 4 mm to 5 mm. The distances L3 and L4 form a nozzle cleaning chamber between the first nozzle 51 and the second nozzle 52 and the second water discharger 2 as a frame-shaped body. The nozzle cleaning chamber is a space into which cleaning water is discharged to the first nozzle 51 and the second nozzle 52.

If thick dirt adheres to the first nozzle 51 and the second nozzle 52, and if the above-mentioned distances L3 and L4 are small, the dirt may adhere to the cleaning unit 1. The cleaning unit 1 according to this embodiment has a sufficient gap between the second water discharger 2 as a frame-shaped body and the first nozzle 51 and the second nozzle 52, so that the adhesion of dirt to the cleaning unit 1 can be suppressed.

The distance L5 between the first linear water discharge section 41 and the second linear water discharge section 42 and the first nozzle 51 and the second nozzle 52 is wider than the distance L4, as shown in FIG. 4. Here, the distance L4 is the distance between the first nozzle 51 and the second nozzle 52 and the nozzle cleaning chamber. This allows the cleaning water discharged from the first linear water discharge section 41 and the second linear water discharge section 42 to be diffused and directly discharged over a wide range of the first nozzle 51 and the second nozzle 52, and the number of water discharge holes can be relatively small.

As shown in Figures 3 and 4, the first water discharger 3 has a first water supply port 32 that supplies wash water to the first linear water discharger 41, and a second water supply port 31 that supplies wash water to the second linear water discharger 42. In this embodiment, the first water discharger 3 further has a third water supply port 33 that supplies wash water to the second water discharger 2.

The first water inlet 32 is connected to a water supply source (not shown) and is a water inlet into which flushing water flows. As shown in Figures 4 and 6, the first water inlet 32 is continuous with a linear flow path 32a extending from the inlet side toward the second water inlet 31 side. The flow path 32a is continuous with a water outlet hole 34a consisting of a linear flow path extending toward the front side. The flow path 32a and the water outlet hole 34a are continuous inside the first water outlet section 3 and do not have a branch point to another flow path. In other words, the first water inlet 32, the flow path 32a, and the water outlet hole 34a are a single flow path, and all flushing water that flows into the first water inlet 32 is discharged in a straight line from the single water outlet hole 34a.

The water discharge hole 34a opens toward the curved surface 41a of the first linear water discharge portion 41, which will be described later. The opening of the water discharge hole 34a is provided directly above the first nozzle 51.

The water discharge hole 34a and the flow path 32a have a circular flow path cross section, and the flow path cross section area of the water discharge hole 34a is smaller than the flow path cross section area of the flow path 32a. Therefore, the wash water that flows into the first water supply port 32 is strengthened when it flows from the flow path 32a into the water discharge hole 34a, and is discharged from the water discharge hole 34a toward the curved surface 41a.

The second water supply port 31 has a similar configuration to the first water supply port 32, and the flushing water that flows into the second water supply port 31 passes through a single flow path and is discharged from a single water discharge hole 34b toward the curved surface of the second linear water discharge section 42. The opening of the water discharge hole 34b is provided directly above the second nozzle 52.

The linear water discharge section 4 is a single linear water discharge section provided for each nozzle 5. The linear water discharge section 4 discharges cleaning water from a single water discharge hole provided in a single flow path to the nozzle 5. This allows the nozzle 5 to be cleaned evenly. The linear water discharge section 4 discharges cleaning water linearly to the nozzle 5 from directly above the nozzle 5. The linear water discharge section 4 may discharge water linearly from diagonally above, in addition to directly above. The above linear shape includes the concepts of straight line and curved line. In this embodiment, the linear water discharge section 4 is composed of a first linear water discharge section 41 and a second linear water discharge section 42 provided corresponding to the first nozzle 51 and the second nozzle 52, respectively.

As shown in FIG. 4, the first linear water discharge section 41 and the second linear water discharge section 42 are disposed above the first nozzle 51 and the second nozzle 52, respectively. Below, the details of the configuration of the first linear water discharge section 41 will be explained using FIG. 6. FIG. 6 is a cross-sectional view taken along line A-A in FIG. 4, which cross-section includes the central axis of the first nozzle 51 and extends vertically in the up-down direction. The second linear water discharge section 42 has the same configuration and effect as the first linear water discharge section 41, which will be explained below.

The first linear water discharge section 41 has a curved surface 41a that is positioned opposite the opening of the water discharge hole 34a. As shown in FIG. 6, the curved surface 41a is positioned with a certain space between them so as to cover the opening of the water discharge hole 34a. The certain space is closed at the top and sides, and a portion of the bottom is open in a roughly rectangular shape.

As shown in FIG. 6, the cleaning water discharged in a straight line from the water discharge hole 34a collides with the curved surface 41a. The cleaning water is discharged from an opening that opens downward from the curved surface 41a toward the first nozzle 51. With the above configuration, the cleaning water is diffused and rectified, and is discharged in a line from directly above the first nozzle 51. The second linear water discharge section 42 has a configuration similar to that of the first linear water discharge section 41, and the cleaning water discharged forward from the water discharge hole 34b is discharged toward the second nozzle 52. The second linear water discharge section 42 discharges the cleaning water in a line from directly above the second nozzle 52.

The curved surface 41a is a curved wall surface. Specifically, as shown in FIG. 6, the curved surface 41a is composed of an upper surface and a side surface, and the upper surface extends so as to incline forward with respect to the extension direction of the water discharge hole 34a. The side surface is curved in a gentle arc shape to continue with the upper surface, and extends approximately vertically downward with respect to the extension direction of the upper surface. As a result, the cleaning water that collides with the curved surface 41a is preferably diffused, and the flow is less likely to be disturbed even after being diffused. The curved surface 41a is inclined toward the retreat direction of the first nozzle 51 and extends toward the direction of the tip surface of the first nozzle 51 in the state housed in the housing 6. As a result, the first linear water discharge portion 41 always discharges cleaning water in the retreat direction of the first nozzle 51. Therefore, the first linear water discharge portion 41 discharges cleaning water in the opposite direction to the opening of the housing 6 through which the first nozzle 51 advances and retreats, so that the cleaning water is less likely to splash outside the housing 6. In addition to the above, the first linear water discharger 41 can discharge wash water onto the tip surface of the first nozzle 51 when it is housed in the housing 6. Therefore, the first linear water discharger 41 can discharge wash water not only onto the upper surface of the first nozzle 51 but also onto the tip surface to clean it. The extension direction of the curved surface 41a is not limited to the above. For example, the curved surface 41a can be structured so that the extension direction can be changed.

The first linear water discharge section 41 diffuses and rectifies the cleaning water discharged from a single water discharge hole 34a provided in a single flow path, and discharges it to the first nozzle 51. This allows the first nozzle 51 to be cleaned uniformly and powerfully. By performing the above-mentioned diffuse water discharge, the hole diameter of the water discharge hole can be made relatively large, which can prevent clogging by foreign matter, etc.

As shown in FIG. 4, the width L1 of the area where the cleaning water discharged from the second linear water discharger 42 hits the second nozzle 52 directly is at least half the width L2 of the second nozzle 52. Similarly, the width of the area where the cleaning water discharged from the first linear water discharger 41 hits the first nozzle 51 directly is at least half the width of the first nozzle 51. This allows the areas on the top surface of the nozzle 5 where dirt is likely to accumulate to be cleaned evenly. It is preferable that the width L1 is equal to or greater than the width L2.

The first linear water discharge portion 41 has a simple configuration with a single curved surface 41a. In addition to the above, the water discharge hole 34a that discharges the wash water and the first linear water discharge portion 41 that diffuses and disperses the wash water are configured as separate bodies. This makes it easy to adjust the water discharge performance, and the water discharge performance can be stabilized even when the first linear water discharge portion 41 is formed from a material such as resin. In addition to the above, parts can be standardized for products with nozzles 5 of different thicknesses. The same applies to the second linear water discharge portion 42.

The width of the range in which the wash water discharged from the first linear water discharge section 41 and the second linear water discharge section 42 directly hits the first nozzle 51 and the second nozzle 52, the water discharge angle, etc. can be easily adjusted. For example, the above adjustments can be easily made by changing the flow path length, diameter size, curved surface shape, etc. of the water discharge hole 34a.

The washing unit 1 according to this embodiment has a second water discharge section 2. The second water discharge section 2 is provided in contact with the rear side of the first water discharge section 3. As shown in FIG. 6, the second water discharge section 2 and the first water discharge section 3 are combined and arranged so as to be in contact with each other at multiple points, and a flow path 21 is formed inside. The second water discharge section 2 has multiple water discharge holes 22a provided around the first nozzle 51 and the second nozzle 52 in the radial direction. The first nozzle 51 and the second nozzle 52 are washed by the washing water discharged from the multiple water discharge holes 22a, which directly discharge the washing water in the entire radial direction.

The flow path 21 is a flow path through which the cleaning water flowing in from the third water supply port 33 of the first water discharger 3 flows. As shown in Figures 3 and 4, the flow path 21 is a flow path that surrounds the radial periphery of the first nozzle 51 and the second nozzle 52. As shown in Figure 6, the flow path 21 is composed of a part of the first water discharger 3 and the second water discharger 2.

As shown in FIG. 4, multiple water discharge holes 22a are arranged at approximately equal intervals around the first nozzle 51 and the second nozzle 52. Water discharge holes 22a are also arranged on the underside of the first nozzle 51 and on one side thereof, i.e., the first water supply port 32 side. Similarly, water discharge holes 22a are also arranged on the underside of the second nozzle 52 and on one side thereof, i.e., the second water supply port 31 side.

As shown in FIG. 6, the water discharge hole 22a is a linear flow path that extends forward. The multiple water discharge holes 22a are continuous with the flow path 21 inside the second water discharge section 2. That is, the flow path 21 is continuous with the multiple water discharge holes 22a through multiple branching points. The flush water that flows in from the third water supply port 33 is discharged forward from the multiple water discharge holes 22a via the flow path 21.

The water discharge hole 22a has a circular cross-section, and the cross-sectional area of the water discharge hole 22a is smaller than the cross-sectional area of the flow path 21. Therefore, the wash water that flows into the third water supply port 33 is strengthened when it flows from the flow path 21 into the water discharge hole 22a, and is discharged forward from the water discharge hole 22a.

As shown in FIG. 6, wall surface 35a and wall surface 35b of the first water discharge section 3 are arranged opposite the openings of the multiple water discharge holes 22a. Wall surface 35a is provided opposite the water discharge holes 22a arranged above the first nozzle 51. Wall surface 35a is arranged with a certain space between them so as to cover the openings of the water discharge holes 22a. The certain space is closed at the top and open at the bottom. Wall surface 35b is also arranged with a certain space between them so as to cover the openings of the water discharge holes 22a arranged below the first nozzle 51. The certain space is closed at the bottom and open at the top.

The cleaning water discharged forward from the water discharge hole 22a located above the first nozzle 51 collides with the wall surface 35a and is discharged downward, as shown by the arrow in FIG. 6, and is discharged toward the upper surface of the first nozzle 51. The cleaning water discharged from the water discharge hole 22a located below the first nozzle 51 collides with the wall surface 35b and is discharged upward, and is discharged toward the lower surface of the first nozzle 51. The wall surface 35a consists of an upper surface and a side surface, and the upper surface is a surface that is approximately parallel to the direction in which the water discharge hole 22a extends. The side surface is curved in a gentle arc shape, continues to the upper surface, and extends approximately vertically downward. The wall surface 35b has a configuration symmetrical to the wall surface 35a, and consists of a lower surface and a side surface. As a result, the cleaning water that collides with the wall surface 35a and the wall surface 35b is preferably diffused. By performing the above-mentioned diffused water discharge, the diameter of the water discharge hole 22a can be made relatively large, which can prevent clogging with foreign matter, etc.

The wall surface 35a and the wall surface 35b are continuous walls surrounding the first nozzle 51 and the second nozzle 52. That is, the first water discharge section 3 has a wall surface facing the multiple water discharge holes arranged around the first nozzle 51 and the second nozzle 52. The wall surface opens toward the first nozzle 51 and the second nozzle 52. Therefore, the cleaning water discharged forward from the multiple water discharge holes 22a collides with the wall surface and is discharged toward the first nozzle 51 and the second nozzle 52. As a result, the cleaning water is directly discharged in the entire radial direction, including at least one side surface of the first nozzle 51 and the second nozzle 52. With the above configuration, even if dirt is attached to the side surface or bottom surface of the first nozzle 51 and the second nozzle 52, the dirt can be washed away, and the situation in which the dirt adheres to the cleaning unit 1 can be suppressed.

The cleaning unit 1 according to this embodiment can discharge a larger amount of cleaning water from above the nozzle 5 than the amount of cleaning water discharged from the other side of the nozzle 5, that is, from below or the side. The cleaning unit 1 according to this embodiment has a first water discharge section 3 having water discharge holes 34a and 34b arranged at the top of the nozzle 5, as well as a plurality of water discharge holes 22a arranged at approximately equal intervals around the nozzle 5. Therefore, the water discharge holes in the cleaning unit 1 are arranged more densely at the top of the nozzle 5 than at other locations. This allows the cleaning unit 1 to increase the amount of cleaning water discharged from above onto the top surface of the nozzle 5, which is prone to adhesion of dirt, compared to the amount of cleaning water discharged from the other side, thereby further enhancing the cleaning effect of the nozzle 5.

In addition to the above, the cleaning unit 1 according to this embodiment may have a larger hole diameter of the water discharge hole located above the nozzle 5 than the hole diameter of the water discharge hole located on the other side. Alternatively, the force of the cleaning water discharged from the water discharge hole located above the nozzle 5 may be larger than the force of the cleaning water discharged from the water discharge port located on the other side of the nozzle 5. The above water force is determined by the speed and amount of water discharged. With the above configuration, the amount of cleaning water discharged from above the nozzle 5 can be made larger than the other side.

Second Embodiment
The cleaning unit 1a according to the second embodiment will be described below. As in the first embodiment, the cleaning unit 1a according to this embodiment is a frame-shaped body having an opening through which the nozzle 5 can be inserted, and the rear end of the cleaning unit 1a is fixed by abutting against the housing 6. In the following description, description of parts common to the first embodiment may be omitted.

As shown in Figs. 5 and 7, the washing unit 1a according to this embodiment has a water discharge section 2a and a diffusion section 3a. The water discharge section 2a and the diffusion section 3a are frame-shaped bodies having openings through which the first nozzle 51 and the second nozzle 52 can be inserted. The water discharge section 2a and the diffusion section 3a have two openings through which the first nozzle 51 and the second nozzle 52 can be inserted separately.

The openings in the water discharge section 2a and the diffusion section 3a through which the first nozzle 51 and the second nozzle 52 can be inserted have a sufficient gap between the first nozzle 51 and the second nozzle 52 when the first nozzle 51 and the second nozzle 52 are inserted. As shown in FIG. 5, when the first nozzle 51 is inserted into the water discharge section 2a and the diffusion section 3a, it has a space L3a on the side and a space L4a on the top. The spaces L3a and L4a may be, for example, about 4 mm to 5 mm. The same applies to the space formed around the second nozzle 52. As a result, like the washing unit 1 according to the first embodiment, the washing water can be diffused and directly discharged over a wide area, and the number of water discharge holes can be relatively small. Furthermore, adhesion of dirt to the washing unit 1a can be suppressed.

The water discharge section 2a has a plurality of water discharge holes 22b that discharges cleaning water. The water discharge holes 22b are evenly arranged around the radial direction of the first nozzle 51 and the second nozzle 52. The water discharge holes 22b are also evenly arranged at positions corresponding to the adjacent side surfaces of the first nozzle 51 and the second nozzle 52. The water discharge section 2a is provided in contact with the rear side of the diffusion section 3a. As shown in FIG. 7, a flow path 21a is formed inside the water discharge section 2a. The flow path 21a is arranged to surround the periphery of the first nozzle 51 and is a flow path that is continuous with the water discharge holes 22b. As shown in FIG. 7, the flow path 21a is composed of the water discharge section 2a and a part of the diffusion section 3a.

As shown in FIG. 5, the diffusion section 3a has a water supply port 33a and a water supply port 33b that supply cleaning water to the water discharge holes 22b. The water supply port 33a is connected to a water supply source (not shown) and is a water supply port into which cleaning water flows. The water supply port 33a supplies cleaning water to the water discharge holes 22b arranged around the first nozzle 51. The water supply port 33b supplies cleaning water to the water discharge holes 22b arranged around the second nozzle 52.

As shown in Figures 5 and 7, the water supply port 33a is connected to the flow path 21a. The water supply port 33b has a similar configuration to the water supply port 33a and is connected to the water discharge hole 22b surrounding the second nozzle 52. The water discharge hole 22b surrounding the first nozzle 51 and the water discharge hole 22b surrounding the second nozzle 52 are connected to the water supply port 33a and the water supply port 33b by independent flow paths. Therefore, for example, the force of the washing water washing the first nozzle 51 and the force of the washing water washing the second nozzle 52 can be made different.

As shown in FIG. 7, the water discharge hole 22b is a linear flow path extending forward. The multiple water discharge holes 22b surrounding the first nozzle 51 are continuous with the flow path 21a inside the water discharge section 2a. The cleaning water flowing in from the water supply port 33a is discharged forward from the multiple water discharge holes 22b via the flow path 21a. The water discharge hole 22b has a circular flow path cross section, and the flow path cross-sectional area of the water discharge hole 22b is smaller than the flow path cross-sectional area of the flow path 21a.

As shown in FIG. 7, wall surfaces 36a and 36b of the diffusion section 3a are arranged facing the openings of the multiple water discharge holes 22b. The configuration of wall surfaces 36a and 36b is the same as the configuration of wall surfaces 35a and 35b in the first embodiment. As shown by the arrows in FIG. 7, the cleaning water discharged from the water discharge holes 22b collides with wall surfaces 36a and 36b, is diffused, and is discharged to the first nozzle 51. By performing the above-mentioned diffusion water discharge, the hole diameter of the water discharge hole 22b can be made relatively large, and clogging by foreign matter, etc. can be suppressed.

The wall surface 35a and the wall surface 36b are continuous walls surrounding the first nozzle 51. That is, the cleaning water discharged from the multiple water discharge holes 22b arranged around the first nozzle 51 is diffused by the wall surface and discharged over the entire periphery of the first nozzle 51. The second nozzle 52 also discharges water over the entire periphery. Unlike the first embodiment, in this embodiment, the water discharge holes 22b are also arranged between the first nozzle 51 and the second nozzle 52. Therefore, the cleaning unit 1a can perform cleaning uniformly over the entire circumference, including the adjacent side surfaces of the first nozzle 51 and the second nozzle 52. This provides a more preferable effect of suppressing adhesion of dirt.

The present disclosure is not limited to the above embodiment, and modifications, improvements, etc. are included in the present disclosure. The washing unit 1 according to the above embodiment has been described as a single washing unit 1 capable of washing both the first nozzle 51 and the second nozzle 52, which are multiple nozzles. It is not limited to the above. If the sanitary washing device 10 has a single nozzle, the washing unit 1 may be capable of washing a single washing nozzle. In addition to the above, if the sanitary washing device 10 has multiple nozzles, multiple washing units 1 may be provided, one for each of the multiple nozzles.

In the above embodiment, wall surface 35a, wall surface 35b, wall surface 36a, and wall surface 36b have been described as walls extending vertically in the up-down direction. This is not limited to the above. The wall surfaces may be curved walls such as curved surface 41a in first water discharge section 3.

10 Sanitary washing device, 1, 1a Washing unit, 22a, 22b, 34a, 34b Water outlet, 5 Nozzle, 6 Housing (main body)

Claims (4)

One or more nozzles each having a water outlet and being provided retractable relative to the main body;
a cleaning unit having a plurality of water discharge holes for discharging cleaning water onto at least the upper surface and the lower surface of the nozzle;
Equipped with
The cleaning unit includes a first water discharger having an opening through which the nozzle can be inserted, and a second water discharger,
The first water discharger is capable of discharging wash water to the nozzle from an upper portion when the nozzle is divided into an upper portion and a lower portion,
The second water discharger has a flow path through which wash water flows, the flow path surrounding the radial periphery of the nozzle,
The cleaning unit is a sanitary cleaning device that can spray a larger amount of cleaning water from above the nozzle when the nozzle is divided into two parts, above and below, than the amount of cleaning water sprayed from below the nozzle . The sanitary washing device according to claim 1, wherein the washing unit further has a water discharge hole for discharging washing water onto at least one side of the nozzle. The sanitary washing device according to claim 1 or 2, wherein the water discharge hole discharges the washing water diffused toward the nozzle. The sanitary washing device according to claim 1 , wherein the water discharge holes of the second water discharge portion are arranged approximately evenly around the nozzle in a radial direction.

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