WO2011111339A1

WO2011111339A1 - Nozzle device and hygienic washing device provided therewith

Info

Publication number: WO2011111339A1
Application number: PCT/JP2011/001221
Authority: WO
Inventors: 良一古閑
Original assignee: パナソニック株式会社
Priority date: 2010-03-12
Filing date: 2011-03-02
Publication date: 2011-09-15
Also published as: TWI481770B; TW201139802A; CN102365411A; CN102365411B

Abstract

Disclosed is a nozzle device provided with a nozzle body (300). The nozzle body (300) is provided with a tubular main water path (310) through which washing water flows, a spout nozzle (320) which spouts water, and a tubular spout flow path (312) which causes the main water path (310) and the spout nozzle (320) to communicated with each other. A step section (314) is provided in the spout flow path (312) so that the cross-sectional area of the spout flow path (312) will be smaller than the cross-sectional area of the main water path (310). A pressure communication path (317) is provided outward of the spout flow path (312). The pressure communication path (317) has two or more gaps (315) which are provided so as to communicate with the main water path (310), and a communication path (316) which is provided so as to cause the two or more gaps (315) to communicate with each other.

Description

Nozzle device and sanitary washing device provided with the same

The present invention relates to a nozzle device for jetting cleaning water for cleaning a local part of a human body and a sanitary cleaning device including the nozzle device, and particularly to a configuration of the nozzle device.

The conventional nozzle device is provided with a pair of vortex chambers below the jet nozzle and applies a fluid oscillation element that self-oscillates the wash water using a pressure difference caused by the water flow to periodically change the jet direction of the wash water. By changing, the cleaning range is expanded and the jetting intensity is changed (for example, refer to Patent Document 1).

FIG. 12 is a schematic diagram showing a schematic configuration in the vicinity of the ejection port of the liquid oscillation nozzle described in Patent Document 1.

As shown in FIG. 12, in the liquid oscillation nozzle described in Patent Document 1, a main nozzle 2 having a flow path diameter substantially perpendicular to the water supply path 1 is connected to the water supply path 1. A main water channel 3 having a larger channel diameter than the main nozzle 2 communicates with the main nozzle 2. An air introduction port 6 for introducing outside air is provided on the upstream side of the main water channel 3, and the swirling water channel 4 communicates with both sides thereof. Further, a jet outlet 5 communicates with the downstream side of the main water channel 3, and the jet outlet 5 is formed so that the opening gradually expands from the entrance side toward the exit side.

Wash water that has flowed in from the water supply channel 1 passes through the main nozzle 2, flows into the main water channel 3, and is ejected from the outlet 5. At this time, a part of the wash water that has flowed into the main water channel 3 flows into the one swirl water channel 4 and generates a swirl flow, whereby the flow of the wash water in the main water channel 3 is directed to the one swirl water channel 4 side. The washing water that is attracted and ejected from the ejection port 5 is also attracted and ejected toward the one turning water channel 4 side. Then, the flow speed of the swirling flow path 4 on the attracted side increases, the pressure of the swirling flow path on the attracted side increases, and the flow speed of the other swirl flow path 4 decreases, so the pressure decreases, Thus, the wash water in the main water channel 3 is drawn toward the other swirl water channel 4 and ejected. Then, by repeating the above operation, the washing water automatically oscillates and can be vibrated and ejected from the ejection port 5.

Further, by introducing the outside air into the main water channel 3 from the air inlet 6 provided in the main water channel 3, the volume of the washing water is increased and the action of blocking the jet port 5 is increased. Thereby, the pressure difference between the turning water channels 4 is increased, and the oscillation can be further stabilized.

JP-A-3-279525

However, in the conventional configuration, since it is an indispensable component to provide the two swirling water channels 4 for oscillating the wash water below the jet nozzle 5, there is a problem that the tip portion of the nozzle is enlarged. was there. In particular, in a multi-function nozzle device in which a single nozzle is provided with a plurality of jet outlets such as a butt cleaning and a bidet cleaning, in addition to an increase in size, the complexity of the structure increases the difficulty. There was a problem of becoming higher.

The present invention solves the above-described conventional problems, and provides a nozzle device that can be easily implemented even in a composite nozzle with a small and simple configuration and can eject a vibration flow, and a sanitary washing device including the nozzle device. For the purpose.

In order to solve the conventional problem, a nozzle device according to the present invention includes a nozzle body, and the nozzle body has a main water channel through which cleaning water flows, a jet outlet from which the cleaning water is jetted, A jet channel that communicates the main water channel with the jet port, and a step portion is provided in the jet channel so that a cross-sectional area of the jet channel is smaller than a cross-sectional area of the main water channel. A pressure communication path is provided outside the ejection flow path, and the pressure communication path communicates at least two gaps provided so as to communicate with the main water channel, and the at least two gaps. And a communication path provided in the.

This causes a swirl in the stepped portion of the wash water flowing from the main water channel into the ejection channel. For this reason, in the vicinity of the inlet of the ejection flow path, a part of the washing water peels off from the wall surface forming the ejection flow path, and the pressure increases, and a part of the wall surface forms the ejection flow path. It adheres to and becomes a flow in which the pressure decreases. When the pressure difference is generated, a secondary flow is generated through the pressure communication path from the high pressure peeling side to the low pressure adhesion side. Then, due to the action of the secondary flow, the attached flow shifts to a separated flow, and the pressure on the attachment side rises, thereby generating a reverse pressure difference. When the pressure difference is reversed, a secondary flow in the opposite direction is generated, and the pressure on the separation side increases again. By repeatedly performing these actions, the movement of the adhered portion and the peeled portion occurs alternately, and the washing water flowing into the ejection flow path can be oscillated (the washing water can be made into an oscillating flow. ).

Moreover, since the jet flow path has a small cross-sectional area due to the step portion, the pulsation of the vibration flow can be amplified. For this reason, the washing water ejected from the ejection port can be made into an oscillating flow (jet flow) with a strong pulsation feeling, and by repeatedly stimulating the user's skin sensation, the user feels that the washing is strong. Can be generated.

Therefore, in the nozzle device of the present invention, the washing water ejected from the ejection port can be made into a jet with an oscillating flow, and the washing power can be enhanced and the washing feeling can be enhanced. Further, in the nozzle device of the present invention, the vibration flow having a strong pulsation feeling can be implemented by the step portion and the pressure communication path, so that the configuration is simple and the nozzle device can be miniaturized.

Further, the sanitary washing device of the present invention includes the nozzle device of the present invention, a cleaning water supply unit that supplies cleaning water to the nozzle device, a control unit that controls the nozzle device and the cleaning water supply unit, and an upper surface of the toilet bowl. And a toilet seat to be placed.

Thereby, it is possible to provide a sanitary washing device having a high detergency and a high washing feeling.

The above object, other objects, features, and advantages of the present invention will become apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings.

According to the nozzle device of the present invention and the sanitary washing device equipped with the nozzle device, it is possible to generate a vibration flow having a high cleaning power and a feeling of cleaning with a small and simple configuration.

FIG. 1 is a perspective view showing a schematic configuration of a sanitary washing device according to Embodiment 1 of the present invention. FIG. 2 is a perspective view showing an appearance of the nozzle device according to Embodiment 1 of the present invention. Fig.3 (a) is sectional drawing which looked at a part of nozzle apparatus shown in FIG. 2 from the side surface side of this nozzle apparatus. FIG.3 (b) is sectional drawing which shows the detail of the front-end | tip part in the nozzle apparatus shown in FIG. Fig.4 (a) is sectional drawing which looked at a part of nozzle apparatus shown in FIG. 2 from the side surface side of this nozzle apparatus. FIG. 4B is a cross-sectional view showing details of the tip of the nozzle device shown in FIG. (FIG. 5A is a top view showing a schematic configuration of a nozzle unit of the nozzle device shown in FIG. FIG. 5B is a cross-sectional view showing a schematic configuration of the nozzle unit of the nozzle device shown in FIG. FIG. 6 is a cross-sectional view showing details of the tip of the nozzle body in the nozzle unit shown in FIG. FIG. 7 is a perspective view showing a part of the cross section of the tip of the nozzle unit shown in FIG. FIG. 8A is a schematic diagram for explaining the vibration action of the buttocks outlet in the nozzle device according to the first embodiment. FIG. 8B is a schematic diagram for explaining the communication action of the pressure communication path in the nozzle device according to the first embodiment. FIG. 9 is a cross-sectional view schematically showing a schematic configuration of a tip portion in the nozzle device of the first modification. FIG. 10 is a cross-sectional view schematically showing a schematic configuration of the pressure communication path in the nozzle device of the second modification. FIG. 11 is a cross-sectional view schematically showing a schematic configuration of a tip portion in the nozzle device of the third modification. FIG. 12 is a schematic diagram showing a schematic configuration in the vicinity of the ejection port of the liquid oscillation nozzle described in Patent Document 1.

The nozzle device of the present invention includes a nozzle body, and the nozzle body includes a main water channel through which the cleaning water flows, a jet port through which the cleaning water is jetted, and a jet channel that communicates the main water channel with the jet port. A step portion is provided in the ejection channel so that the cross-sectional area of the ejection channel is smaller than the cross-sectional area of the main water channel, and a pressure communication channel is provided outside the ejection channel; The pressure communication path has at least two gaps provided to communicate with the main water channel and a communication path provided to communicate the at least two gaps.

Here, the cross-sectional area of the ejection flow path refers to the cross-sectional area in the direction perpendicular to the flow direction of the washing water in the ejection flow path. Similarly, the cross-sectional area of the main water channel refers to a cross-sectional area in a direction perpendicular to the flow direction of the wash water in the main water channel.

Also, the communication passage is formed so as to communicate with at least two gaps separately from the main water channel.

This causes a swirl in the stepped portion of the wash water flowing from the main water channel into the ejection channel. For this reason, in the vicinity of the inlet of the ejection flow path, a part of the washing water is peeled off from the wall surface forming the ejection flow path, and the pressure rises. It adheres to the wall surface that forms the path, resulting in a flow in which the pressure drops. When the pressure difference is generated, a secondary flow is generated through the pressure communication path from the high pressure peeling side to the low pressure adhesion side. Then, due to the action of the secondary flow, the attached flow shifts to a separated flow, and the pressure on the attachment side rises, thereby generating a reverse pressure difference. When the pressure difference is reversed, a secondary flow in the opposite direction is generated, and the pressure on the separation side increases again. By repeatedly performing these actions, the movement of the adhered portion and the peeled portion occurs alternately, and the washing water flowing into the ejection flow path can be oscillated (the washing water can be made into an oscillating flow. ).

Moreover, since the jet flow path has a small cross-sectional area due to the stepped portion, the amplitude of the vibration flow can be increased. For this reason, the washing water ejected from the ejection port can be made into an oscillating flow (jet) with a strong pulsation feeling, and the user feels that the washing is strong by repeatedly stimulating the skin sensation. Can be generated.

In the nozzle device according to the present invention, the pressure communication path may be provided along the outer periphery of the ejection flow path.

As a result, the pressure communication path can be adapted to the pressure difference generated at all locations in the stepped portion, and the vibration flow can be generated reliably, and the pressure communication path is implemented with a simple configuration. be able to.

In the nozzle device according to the present invention, the pressure communication path may be configured by a gap provided along the outer periphery of the ejection flow path and an annular pressure communication chamber communicating with the end of the gap. Good.

Further, in the nozzle device according to the present invention, the ejection flow path may be formed in a step shape so that the cross-sectional area of the distal end portion is larger than that of the proximal end portion.

As a result, when the washing water that has become an oscillating flow flows through the ejection flow path, vortices are generated in the portions (corners) formed in the step shape of the ejection flow path. Thus, the pressure difference is generated, and the amplitude of the pulsation of the washing water can be further increased, and the pulsation feeling can be further increased.

Further, in the nozzle device according to the present invention, the ejection flow path may be provided such that its axis is inclined 5 to 20 degrees toward the rear end side of the nozzle body with respect to the axis of the main water channel.

As a result, the cleaning water is more likely to generate appropriate separation and adhesion within the ejection flow path, can generate a more stable vibration flow, and can further increase the vibration amplitude of the cleaning water. it can.

Further, the nozzle device according to the present invention includes a cylindrical nozzle cover that covers at least a part of the nozzle body, the nozzle cover is provided with an ejection opening, and the nozzle body and the nozzle cover are configured to be slidable. Also good.

Therefore, when the cleaning water is ejected, the nozzle body, particularly the vicinity of the nozzle outlet, is covered with the nozzle cover, and the nozzle body is hardly contaminated by the cleaning water soiled by cleaning, which is sanitary.

Further, in the nozzle device according to the present invention, a transmission unit configured to change the flow velocity of a part of the wash water flowing through the main water channel may be provided in the middle of the main water channel.

This causes the washing water flowing through the main water channel to have a swirling component because the balance of flow velocity is lost in the transmission. For this reason, the wash water to which the swirl component is imparted flows into the ejection channel. And the washing water which flowed in into the ejection flow path flows so that a part may peel from the wall surface which forms an ejection flow path, and it flows so that another part may adhere to a wall surface. At this time, since the swirling component is imparted to the cleaning water, the separation site and the adhesion site move sequentially, and the vibration flow is more likely to occur.

Furthermore, in the nozzle device according to the present invention, a bent portion that is bent at a right angle and a curved portion having a curved surface are provided in the middle of the main water channel, and the transmission portion is configured by the bent portion and the curved portion. May be.

This makes it easier to impart a swirl component to the wash water in the transmission unit.

Further, a sanitary washing device according to the present invention is mounted on the upper surface of the toilet device, the cleaning water supply means for supplying cleaning water to the nozzle device, the control means for controlling the nozzle device and the cleaning water supply means. A toilet seat is provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted. In all the drawings, components necessary for explaining the present invention are extracted and illustrated, and other components are not illustrated. Furthermore, the present invention is not limited to the following embodiments.

(Embodiment 1)
First, the configuration of the sanitary washing device according to Embodiment 1 of the present invention will be described.

<1> Configuration of Sanitary Cleaning Device FIG. 1 is a perspective view showing a schematic configuration of a sanitary cleaning device according to Embodiment 1 of the present invention. FIG. 1 shows the front-rear direction in the sanitary washing device with the front side as viewed from the seated user as the front part of the sanitary washing device and the rear side as seen from the seated user as the rear part of the sanitary washing device. ing.

As shown in FIG. 1, the sanitary washing device 10 includes a main body 20, a toilet lid 30, and a toilet seat 40 that are provided with a human body detection sensor 50 and a remote controller 60. It is what you use. A toilet seat 40 and a toilet lid 30 are rotatably supported on the main body 20, and the toilet lid 30 stands up so as to be positioned at the rearmost part of the sanitary washing device 10 when the toilet lid 30 is opened. is doing. Further, the toilet lid 30 conceals the upper surface of the toilet seat 40 when the toilet lid 30 is closed.

In the center of the front part of the main body 20, a nozzle device 100 is installed. The nozzle device 100 includes a butt cleaning nozzle unit for cleaning the butt and a bidet nozzle unit for cleaning a local part of a woman. In the nozzle device 100, the nozzle unit 200 (see FIG. 2) advances toward the center of the toilet 70, and the cleaning water is ejected from a jet outlet provided at the tip of the nozzle unit 200 toward the user's local area. It is configured to clean the user's local area.

Also, a seating detection sensor 21 for detecting a human body seated on the toilet seat 40 is installed at the front corner of the main body 20. When the control means of the main body 20 to be described later stops the washing water from being ejected from the nozzle device 100 when the seating detection sensor 21 is not detecting a human body, the washing water is ejected out of the toilet bowl 70 and the toilet. Prevent splashing in the room.

Further, inside the main body 20, a water supply means such as a pump for supplying the cleaning water to the nozzle device 100 and a cleaning water supply means (not shown) having a heat exchanger for heating the cleaning water, a local part wetted by the cleaning water. A drying device (not shown) for blowing hot air toward the area to dry the local part, and a control means (not shown) for controlling the nozzle device 100, cleaning water supply means, drying device, etc. are provided. Yes. The control means of the main body 20 is configured to control the operation of each part of the sanitary washing device 10 based on signals transmitted from the human body detection sensor 50, the remote controller 60, the seating detection sensor 21, and the like. .

The human body detection sensor 50 is attached to the wall surface of the toilet room. The human body detection sensor 50 is a reflective infrared sensor, and is configured to output a detection signal to the control means of the main body 20 when detecting the infrared light reflected from the human body. And the control means of the main body 20 can detect that the user has entered the toilet room when the detection signal from the human body detection sensor 50 is input.

The remote controller 60 is attached to a place such as a wall surface of a toilet room that can be operated by a user seated on the toilet seat 40. The remote controller 60 is provided with a plurality of operation switches, and is configured so that the user can operate each function of the sanitary washing device 10 by operating the operation switches.

<2> Configuration of Nozzle Device Next, the configuration of the nozzle device 100 according to Embodiment 1 of the present invention will be described with reference to FIGS. 2 to 5B.

FIG. 2 is a perspective view showing an appearance of the nozzle device according to Embodiment 1 of the present invention. 3A is a cross-sectional view of a part of the nozzle device shown in FIG. 2 as viewed from the side of the nozzle device, and FIG. 3B shows details of the tip of the nozzle device shown in FIG. It is sectional drawing shown. 4A is a cross-sectional view of a part of the nozzle device shown in FIG. 2 as viewed from the side of the nozzle device, and FIG. 4B shows details of the tip of the nozzle device shown in FIG. It is sectional drawing shown. FIG. 5A is a top view showing a schematic configuration of the nozzle unit of the nozzle device shown in FIG. 2, and FIG. 5B is a cross-sectional view showing a schematic configuration of the nozzle unit of the nozzle device shown in FIG. is there.

In addition, in FIG. 2, the state which has a nozzle unit in a storage position is shown. 3 (a) and 3 (b) show a state in which the nozzle outlet of the nozzle device is at the bidet cleaning position, and in FIGS. 4 (a) and 4 (b), the nozzle outlet of the nozzle device has a butt cleaning. The state in the position is shown. 5A and 5B show a state where the nozzle port of the nozzle device is in the bidet cleaning position.

As shown in FIG. 2, the nozzle device 100 has a casing 110 molded from a resin material. The casing 110 is configured by combining an upper case 120 and a lower case 130 that can be separated vertically.

3A and 4A, a substantially cylindrical nozzle guide 111 is formed at the center of the casing 110, and a tip opening 112 is formed at one end of the nozzle guide 111. Is provided. A cylindrical nozzle unit 200 is slidably installed in the nozzle guide 111, and the nozzle unit 200 is housed in the nozzle guide 111 (see FIG. 2) and the tip opening of the nozzle guide 111. It protrudes from 112 and is configured to be able to advance and retreat between two cleaning positions (see FIGS. 3A and 4A), a bidet cleaning position and a buttocks cleaning position.

A nozzle shutter 140 that is pivotable up and down is pivotally supported at the top of the tip opening 112 of the nozzle guide 111. When the nozzle unit 200 is stored in the storage position, the nozzle shutter 140 rotates and closes downward due to the weight of the nozzle shutter 140 (see FIG. 2), and when the nozzle unit 200 advances to the cleaning position, The tip is configured to open upward by pushing the nozzle shutter 140 (see FIGS. 3A and 4A).

As shown in FIGS. 5A and 5B, the nozzle unit 200 includes a substantially cylindrical nozzle body 300, a substantially cylindrical nozzle cover 400 that accommodates the nozzle body 300, the nozzle cover 400, and the nozzle. A connecting means 500 for connecting / separating the main body 300 is provided. The nozzle cover 400 includes a nozzle cover body 410 and a nozzle rack block 420 that are integrated. The connecting means 500 pulls the nozzle body 300 with the nozzle cover 400 by connecting the nozzle cover 400 and the nozzle body 300.

The nozzle cover main body 410 is formed by forming a thin stainless steel plate into a cylindrical shape, the front end surface is a closed surface, the rear end surface is an open surface, and the nozzle main body 300 can be inserted from the rear end surface. ing. A slit-like opening that fits into the nozzle rack block 420 is provided behind the lower surface of the nozzle cover main body 410, and drainage for discharging the cleaning water in the nozzle cover main body 410 is provided in front of the lower surface of the nozzle cover main body 410. A mouth 412 is provided (see FIGS. 3B and 4B). Further, one ejection opening 411 is provided on the upper surface of the nozzle cover main body 410. A tooth-shaped rack 421 is provided on the lower surface of the nozzle rack block 420 over substantially the entire length.

The nozzle body 300 and the nozzle cover 400 are configured to be slidable with each other, and the nozzle body 300 and the nozzle cover 400 are stopped at a predetermined relative position by the connecting means 500 in the bidet cleaning position and the buttocks cleaning position. It is configured as follows. That is, the nozzle main body 300 and the nozzle cover 400 stop at the bidet cleaning position so that the ejection opening 411 of the nozzle cover 400 overlaps with the bidet cleaning ejection outlet 340 of the nozzle main body 300 (see FIG. 3B). At the cleaning position, the ejection opening 411 of the nozzle cover 400 stops so as to overlap the bidet cleaning ejection port 340 of the nozzle body 300 (see FIG. 4B).

The outer diameter of the nozzle main body 300 is slightly smaller than the inner diameter of the nozzle cover nozzle cover 400 so that the nozzle main body 300 and the nozzle cover 400 can slide smoothly with each other. Further, the ejection opening 411 has a larger opening than the bidet washing ejection port 340 and the buttocks washing ejection port 320, and the washing water hits the ejection opening 411 so that the ejection is not hindered.

In addition, as shown in FIGS. 3A and 4A, a nozzle driving means 113 is installed at the lower portion of the casing 110. The nozzle drive means 113 includes a drive motor 114, a plurality of transmission gears (not shown), and a pinion gear 115.

And as shown in FIG.5 (b), the pinion gear 115 is installed in the position which meshes with the rack 421 installed in the lower surface of the nozzle rack block 420 which comprises the nozzle cover 400. FIG. The rotation of the drive motor 114 is transmitted to the pinion gear 115 at a lower rotational speed via a transmission gear (not shown), and the pinion gear 115 rotates, so that the nozzle cover 400 having the rack 421 slides. The drive motor 114 is connected to control means (not shown) of the main body 20, and operation is controlled by the control means. Further, a rotation detection sensor (not shown) that detects the number of rotations of the drive motor 114 is installed at the rear of the drive motor 114.

<3> Configuration of Nozzle Body Next, the configuration of the nozzle body 300 will be described with reference to FIGS.

6 is a cross-sectional view showing details of the tip of the nozzle body in the nozzle unit shown in FIG. 5B, and FIG. 7 shows a part of the cross-section of the tip of the nozzle unit shown in FIG. It is a perspective view shown. In the following description, the direction of the front end portion of the nozzle body is referred to as the front end side, and the direction of the rear end portion is referred to as the rear end side.

As shown in FIGS. 5B and 6, the nozzle body 300 is formed of a resin material, and is formed of a nozzle body base material 301, a nozzle lid member 302, and a nozzle bottom member 303. . Specifically, the nozzle body 300 is provided with a bottom cleaning jet 320 and a bidet cleaning outlet 340 in a nozzle body base 301 formed integrally with a bottom cleaning flow path 310 and a bidet cleaning flow path 330. The nozzle lid member 302 and the nozzle bottom member 303 that forms the bent portion 311 of the buttocks cleaning flow path 310 are joined together by welding.

Inside the nozzle body 300, two channels of a butt cleaning channel (main water channel) 310 and a bidet cleaning channel 330 are disposed substantially parallel to the axis of the nozzle body 300. The buttocks cleaning channel 310 is disposed in the lower part of the nozzle body 300, and the bidet cleaning channel 330 is disposed in the upper part of the nozzle body 300. The rear end of the buttocks cleaning channel 310 and the bidet cleaning channel 330 is connected to the buttocks cleaning water supply port 319 and the bidet cleaning water supply port 339 through which cleaning water supplied from the cleaning water supply means flows, respectively. Has been.

Also, a butt cleaning jet (spout) 320 is provided at the tip of the upper surface of the nozzle body 300, and a bidet cleaning 340 is provided at the rear end side of the butt cleaning jet 320. ing.

The buttocks cleaning flow path 310 is formed so as to extend from the rear end portion of the nozzle main body 300 to the vicinity of the front end portion thereof substantially in parallel with the axis of the nozzle main body 300. A transmission unit 323 is provided in the middle of the buttocks cleaning channel 310. The downstream end of the buttocks cleaning channel 310 is connected to the buttocks cleaning jet port 320 via the ejection channel 312. In the first embodiment, the buttocks cleaning channel 310 is formed to have a substantially circular cross section and a diameter of about 3.0 to 3.5 mm. In the first embodiment, the transmission unit 323 includes a bent portion 311 and a curved portion 313.

Here, the shape of the transmission unit 323 will be described in detail with reference to FIGS. 6 and 7.

As shown in FIGS. 6 and 7, the bent portion 311 is provided on one side surface of the buttocks cleaning flow path 310 and is formed to be bent at a right angle from the horizontal direction upward. Yes. Here, the right-angled shape means that it is bent in the range of 70 degrees to 100 degrees.

Further, a curved portion 313 is provided on the other side surface side of the buttocks cleaning channel 310 at a portion where the bent portion 311 of the buttocks cleaning channel 310 is provided. The bending portion 313 has a curved surface that is curved in a concave shape, and is formed so that the cleaning water flowing through the buttocks cleaning flow path 310 flows smoothly upward from the horizontal direction.

Thereby, in the transmission unit 323, the washing water flowing through the buttocks washing flow path 310 has a flow velocity on one side where the bent portion 311 is provided and on the other side where the curved portion 313 is provided. Instead, a swirl component can be imparted to the wash water.

In the first embodiment, the transmission unit 323 employs a configuration including the bent portion 311 and the curved portion 313, but is not limited thereto. The transmission unit 323 may have any form as long as the flow rate of a part of the washing water flowing through the buttocks washing flow channel 310 can be changed with respect to the flow rate of other washing water. For example, the speed change part 323 may adopt a form constituted by the bending part 313.

In the first embodiment, the bending portion 311 and the bending portion 313 are provided at the same position (the same position in the washing water flow direction) of the buttocks cleaning flow path 310. However, the present invention is not limited to this. Not. A configuration in which the bent portion 311 and the curved portion 313 are provided at different positions (different positions in the washing water flow direction) of the buttocks cleaning flow path 310 may be adopted. That is, the bending portion 313 may be provided on the upstream side of the bending portion 311 or may be provided on the downstream side of the bending portion 311. In this case, the bending portion 313 may be curved in a convex shape, or may be curved in a concave shape.

Further, as shown in FIGS. 6 and 7, the ejection flow path 312 is formed in a step shape so that the cross-sectional area of the distal end portion 322 is larger than that of the proximal end portion 321. A base end portion (hereinafter referred to as a small hole portion) 321 is formed in a cylindrical shape having a diameter of about 1.5 to 1.7 mm, and a distal end portion (hereinafter referred to as a large hole portion) 322 has a diameter of about 1 It is formed in a cylindrical shape of 9 to 2.1 mm. In addition, although the ejection flow path 312 employ | adopted the form comprised by 2 steps | paragraphs of the small hole part 321 and the large hole part 322 here, it is not limited to this. The ejection channel 312 may be formed in a stepped shape so that the front end portion 322 has a larger flow cross-sectional area than the base end portion 321, and may have a plurality of steps (for example, small hole portions, medium holes). Part and large hole part) may be adopted.

The ejection channel 312 is provided such that its axis is inclined about 7 degrees toward the rear end side of the nozzle body 300 with respect to the axis of the buttocks cleaning channel 310. The axial center of the ejection channel 312 is a nozzle main body with respect to the axial center of the buttocks cleaning channel 310 from the viewpoint of making the cleaning water ejected from the buttocks cleaning nozzle 320 into an oscillating flow (jet) having a strong pulsation feeling. It is preferable to incline to the rear end side of 300 by 5 degrees or more. Further, the axis of the ejection channel 312 has a nozzle body 300 with respect to the axis of the buttocks cleaning channel 310 from the viewpoint of allowing the washing water ejected from the buttocks cleaning nozzle 320 to hit the local area of the user. It is preferable to incline to the rear end side by 20 degrees or less.

This makes it easy for the cleaning water to be peeled off at the wall surface on the rear end side of the small hole portion 321 and to adhere to the tip end side. For this reason, the balance of the water flow can be broken, and the vibration flow can be more easily generated.

Further, the corner portion formed by the small hole portion 321 and the large hole portion 322 of the ejection flow channel 312 is formed in an edge shape that stands substantially at a right angle. As a result, vortices are generated at the corners formed by the small hole portion 321 and the large hole portion 322 of the ejection flow path 312, and flow separation is likely to occur. That is, a part of the cleaning water ejected from the small hole part 321 to the large hole part 322 adheres to the side wall of the large hole part 322, and the other part of the cleaning water peels from the side wall of the large hole part 322, Pressure difference occurs and pressure fluctuation occurs. For this reason, the amplitude of the vibration of the washing water flowing through the large hole portion 322 can be further increased.

Further, a stepped portion 314 is formed at a connection portion between the buttocks cleaning channel 310 and the small hole 321 of the ejection channel 312. That is, since the diameter of the small hole portion 321 is smaller than the diameter of the buttocks cleaning flow path 310, a step is formed at the connection portion between the buttocks cleaning flow path 310 and the small hole portion 321. 314 is configured.

A pressure communication passage 317 is provided outside the step portion 314. The pressure communication path 317 is formed by a gap between the nozzle body base material 301 and the nozzle lid member 302 and is formed so as to surround the ejection flow path 312. In the first embodiment, the pressure communication path 317 includes a gap 315 and a pressure communication chamber 316.

The gap 315 is formed so that the base end (upstream end) thereof communicates with the buttocks cleaning flow path 310 and is formed in an annular shape along the outer periphery of the ejection flow path 312. That is, in the first embodiment, the gap 315 is provided so as to communicate with at least two opposed gaps provided so as to communicate with the buttocks washing flow path 310 and the at least two opposed gaps. It also serves as a communication passage. Further, the pressure communication chamber 316 communicates with the terminal end (downstream end) of the gap 315 and is formed in an annular shape. In the first embodiment, the pressure communication chamber 316 is configured so that its volume is larger than the gap 315.

Thereby, the high pressure applied to the specific part of the step part 314 from the buttocks cleaning channel 310 is different from the specific part of the step part 314 via the pressure communication path 317 (here, the opposite part). ) To increase the pressure in that part. As will be described later, the pressure communication path 317 includes at least two gaps provided so as to communicate with the buttocks washing flow path 310, and a communication path provided so as to communicate the at least two gaps. As long as it has, it is possible to adopt various forms.

As shown in FIG. 6, the bidet cleaning flow path 330 is disposed approximately parallel to the axis of the nozzle body 300 with a flow path diameter of about 3.0 to 3.5 mm from the rear end of the nozzle body 300 to the vicinity of the front end. ing. In the middle of the bidet cleaning channel 330, an orifice 331 having a channel diameter reduced to about φ1.0 to 1.5 mm is provided, and its tip is disposed below the bidet cleaning nozzle 340. It is connected to the water chamber 332. A bidet ejection flow path 341 is connected to the water chamber 332.

The water chamber 332 has a wider cross-sectional area than the bidet cleaning flow path 330, and the tip side thereof is formed with a curved surface that curves upward. As a result, the wash water flowing in from the bidet washing flow path 330 reduces the flow velocity in the water chamber 332 and reduces the pulsation component of the wash water to the bidet ejection flow path 341 along the curved surface. Inflow.

The base end of the bidet ejection flow path 341 is connected to the water chamber 332, and the end of the bidet ejection flow path 341 forms a bidet cleaning jet outlet 340. The bidet ejection flow path 341 has a base end formed in a cylindrical shape having a diameter of about 1.8 mm, and is formed in a tapered shape (a small aspect is formed over the entire circumference). In addition, the bidet ejection flow path 341 is formed so as to expand from the middle toward the end thereof (so that the cross-sectional area thereof increases). Accordingly, the washing water flowing from the water chamber 332 into the bidet ejection flow path 341 can be smoothly and stably caused to flow, and the washing water with less pulsating component can be ejected from the bidet washing ejection port 340.

<4> Operations of Nozzle Device and Sanitary Washing Device Next, operations of the nozzle device 100 according to the first embodiment and the sanitary washing device 10 including the nozzle device 100 will be described with reference to FIGS. 1 to 4.

First, as shown in FIG. 2, the nozzle cover 400 is located at the rearmost part of the nozzle guide 111, and the nozzle body 300 is also located at the rearmost part of the sliding range. This position is referred to as a storage position, and this state is referred to as a storage state. At this time, the ejection opening 411 of the nozzle cover 400 is in a state of overlapping with the bidet cleaning ejection port 340 of the nozzle body 300.

When starting the cleaning from the storage state, first, the user operates the remote controller 60 of the sanitary cleaning device 10 so that the control means of the main body 20 starts the control. When the sanitary washing device 10 is installed in the toilet 70 and the control unit of the main body 20 first operates the nozzle device 100, the position of the nozzle cover 400 is controlled as follows.

That is, the control means of the main body 20 drives the drive motor 114. Then, the rotation of the drive motor 114 is transmitted to the pinion gear 115 via a plurality of transmission gears, thereby moving the nozzle cover 400 having the rack 421 engaged with the pinion gear 115 backward. However, since the nozzle cover 400 is located at the storage position, the nozzle cover 400 cannot move further forward, and the position of the nozzle cover 400 in the front-rear direction does not change. Therefore, the control means of the main body 20 stores this position as the origin, and detects the rotational speed of the drive motor 114 with the rotational speed detection sensor, thereby estimating the movement amount of the nozzle cover 400, thereby Perform position control.

Next, the control means of the main body 20 rotates the drive motor 114 in the reverse direction to move the nozzle cover 400 forward. At this time, the nozzle body 300 is pulled by the nozzle cover 400 by the connecting means 500 and moves forward in an integrated state.

Here, when the user's operation is a bidet cleaning operation, the control means of the main body 20 follows the control sequence set in advance, and when the rotational speed of the drive motor 114 reaches a set value, the drive motor 114 Stop. As a result, the nozzle cover 400 and the nozzle body 300 moved forward stop at a predetermined position set in advance. In this state, the bidet cleaning jet outlet 340 is located substantially at the center of the ejection opening 411, and this position is the bidet cleaning position. Further, in this state, the edge of the ejection opening 411 does not cover the bidet cleaning ejection port 340.

Next, the control means controls the cleaning water supply means and causes the bidet cleaning flow path 330 to pass through the bidet cleaning. The washing water ejected from the bidet washing ejection port 340 passes through the ejection opening 411 and is ejected. The switching of the cleaning channel and the adjustment of the flow rate are performed by the cleaning water supply means.

Wash water with pulsation supplied from the cleaning water supply means flows into the bidet cleaning flow path 330 through the cleaning water supply port 339, passes through the orifice 331 from the bidet cleaning flow path 330, and flows into the water chamber 332. . During this time, immediately after passing through the orifice 331 and immediately after flowing into the water chamber 332, the flow rate of the cleaning water becomes slow, and a vortex is generated in the cleaning water and stirred. Thereby, the pulsation feeling of washing water can be reduced.

The washing water flowing from the water chamber 332 into the bidet ejection flow path 341 is stably flowed in due to the situation provided at the base end of the bidet ejection flow path 341. The washing water that has flowed into the bidet ejection channel 341 flows through the bidet ejection channel 341 and is ejected from the bidet washing nozzle 340. At this time, since the bidet ejection flow path 341 is formed so as to expand from the middle toward the end, washing water with less pulsating component can be ejected from the bidet washing ejection port 340, and a soft washing feeling can be obtained. Can be provided. Note that the buttocks cleaning jet 320 is covered with the nozzle cover main body 410 and the sewage generated by the bidet cleaning is not directly applied, so that it can be kept clean.

Then, when the user operates to stop the bidet cleaning, the control means of the main body 20 rotates the drive motor 114 forward, moves the nozzle cover 400 and the nozzle main body 300 rearward, and returns them to the original storage position.

On the other hand, when the user selects the butt cleaning, the control unit of the main body 20 rotates the drive motor 114 so as to move forward after confirming the origin position of the nozzle cover 400, as in the bidet cleaning. The nozzle cover 400 and the nozzle body 300 are moved forward. Then, the control means of the main body 20 controls the drive motor 114 so as to move the nozzle cover 400 further forward beyond the bidet cleaning position.

At this time, the nozzle body 300 abuts on a front stopper (not shown) provided on the nozzle guide 111, and the nozzle body 300 is restricted from moving further forward. When the nozzle cover 400 moves further forward, the connection between the nozzle body 300 and the nozzle cover 400 by the connecting means 500 is released, and only the nozzle cover 400 moves forward. Then, the control means of the main body 20 stops the drive motor 114 when the nozzle cover 400 moves forward to a position where the ejection opening 411 overlaps the buttocks cleaning ejection port 320. In this state, the buttocks cleaning jet outlet 320 is located substantially at the center of the ejection opening 411, and this position is the buttocks cleaning position.

When the nozzle cover 400 reaches the buttocks cleaning position, the control means controls the cleaning water supply means and allows water to flow through the buttocks cleaning flow path 310 via the buttocks cleaning water supply port 319. Butt washing is started. The washing water ejected from the buttocks washing ejection port 320 passes through and is ejected without directly contacting the ejection opening 411. The switching of the cleaning channel and the adjustment of the flow rate are performed by the cleaning water supply means. Moreover, since the upper part of the bidet washing | cleaning jet nozzle 340 is covered with the nozzle cover main body 410, the sewage produced by the buttocks washing does not directly hit the bidet washing jet nozzle 340. For this reason, the bidet washing spout 340 is kept clean.

When the user operates to stop the buttocks cleaning, the control means of the main body 20 rotates the drive motor 114 in the forward direction to move the nozzle cover 400 backward. At this time, the nozzle cover 400 is again connected to the nozzle body 300 by the connecting means 500, and the nozzle cover 400 moves rearward together with the nozzle body 300. The rear end of the nozzle body 300 abuts on a rear stopper (not shown) provided at the rear portion of the nozzle guide 111, so that the nozzle body 300 is restricted from moving further.

When the nozzle cover 400 further moves rearward, the connection with the nozzle body 300 is disconnected by the connecting means 500, and the nozzle body 300 and the nozzle cover 400 are separated. Thereby, only the nozzle cover 400 moves backward to the position (storage position) where the ejection opening 411 overlaps the bidet cleaning ejection port 340 with respect to the nozzle body 300 whose movement is restricted by the rear stopper. The control means of the main body 20 stops the drive motor 114 when the nozzle cover 400 is retracted to the storage position.

<5> Operation of Nozzle Device and Sanitary Washing Device Next, with respect to the operation of the nozzle device 100 according to the first embodiment and the sanitary washing device 10 including the nozzle device 100, FIG. 6, FIG. 7, FIG. This will be described with reference to FIG.

FIG. 8A is a schematic diagram for explaining the vibration action of the buttocks outlet in the nozzle device according to the first embodiment, and FIG. 8B is a pressure in the nozzle device according to the first embodiment. It is a schematic diagram explaining the communication effect | action of a communicating path. In FIG. 8A and FIG. 8B, the gap 315 and the pressure communication chamber 316 are hatched.

First, the cleaning water that has flowed into the buttocks cleaning channel 310 is given a swirl component by the transmission unit 323 while flowing through the buttocks cleaning channel 310 (see FIGS. 6 and 7). The washing water to which the swirl component is given changes the flow direction from the horizontal direction to the upper side at the bent portion 311 and the curved portion 313.

Next, the washing water flowing upward flows into the ejection channel 312 as shown by an arrow A in FIG. 8A, but the small holes of the ejection channel 312 from the buttocks washing channel 310. Since the flow area of the portion 321 is small, a vortex is generated over the entire circumference of the step portion 314. At this time, the generated vortex is not uniform, and the strength distribution of the vortex generated in the step portion 314 is generated due to the state of the flow adhering to the ejection flow path. As a result, the pressure distribution is increased in the circumferential direction of the step portion 314. appear.

In the first embodiment, in particular, since the ejection flow path 312 is inclined toward the rear end side, the rear end side vortex B becomes stronger and the front end side vortex B becomes weaker. For this reason, the pressure on the rear end side of the ejection flow path 312 increases, and the pressure on the front end side decreases. As a result, the cleaning water that has flowed into the small hole portion 321 becomes a flow (arrow C) where the rear end side is peeled off from the wall surface forming the small hole portion 321, and the flow where the front end side adheres to the wall surface forming the small hole portion 321. (Arrow D).

At this time, since a pressure difference is generated between the rear end side and the front end side of the stepped portion 314, a high pressure on the rear end side is transmitted to the pressure communication chamber 316 through the gap 315. The high pressure transmitted to the pressure communication chamber 316 is propagated by the secondary flow in the direction indicated by the arrow E in the pressure communication chamber 316 (see FIG. 8B). The high pressure propagated to the tip side in the pressure communication chamber 316 is transmitted to the tip side vortex B 'via the gap 315, and the pressure of the vortex B' becomes high. Then, the pressure of the vortex B ′ on the front end side increases and the pressure of the vortex B on the rear end side decreases, so that the flow on the front end side in the small hole portion 321 is separated from the wall surface forming the small hole portion 321. The flow on the rear end side is a flow that adheres to the wall surface forming the small hole portion 321.

As described above, the separation and adhesion of the flow are switched, and the generation and pressure of the vortex in the vicinity of the stepped portion 314 are also changed. This time, the high pressure on the tip side is changed to the pressure communication path 317 including the gap 315 and the pressure communication chamber 316. Is transmitted to the rear end side by the secondary flow in the direction indicated by the arrow F (see FIG. 8B).

Such adhesion and separation are alternately generated on the front end side and the rear end side, and this operation is repeated, so that the cleaning water becomes an oscillating flow, the cleaning range is widened, and the front-rear direction is switched at high speed. As a result, it is divided into a pulsating state.

When the cleaning water flows from the small hole portion 321 into the large hole portion 322, the corner portion formed by the small hole portion 321 and the large hole portion 322 is formed in an edge shape that is substantially perpendicular. Further, a vortex is further generated in the vicinity of the portion (see FIG. 8A). Thereby, it is possible to further amplify the pressure fluctuation of the washing water in the small hole portion 321, and the jet flow ejected from the buttocks washing ejection port 320 is given a stronger pulsation. For this reason, the feeling that it is washing | cleaning strong against a human body arises while cleaning power increases.

As described above, in the nozzle device 100 according to the first embodiment and the sanitary washing device 10 including the nozzle device 100, even the nozzle body 300 having a plurality of jet ports needs only one jet opening 411, and dirt is attached. Cleanliness can be improved because the number of parts that are easy to do is minimized. Further, since the unused outlet is covered with the nozzle cover 400, the nozzle main body 300 is not contaminated with the cleaning water soiled by the cleaning, and the hygiene can be improved. Moreover, since the ejection opening 411 is the minimum necessary, the appearance is neat and the nozzle cover 400 has a simple configuration, so that the cost can be reduced.

Further, in the nozzle device 100 according to the first embodiment and the sanitary washing device 10 including the same, the nozzle body 300 and the nozzle cover 400 are interlocked via the connecting means 500, and the relative position can be switched. Therefore, the two nozzles can be driven to the optimum positions by one nozzle driving means 113, and the apparatus can be reduced in size and cost.

Furthermore, in the nozzle device 100 according to the first embodiment and the sanitary washing device 10 including the nozzle device 100, the tip portion of the nozzle device 100 is configured by the step portion 314 and the pressure communication path 317, thereby providing a simple configuration. In addition to being able to reduce the size, the washing water ejected from the buttocks washing ejection port 320 can be made into a vibration wave (jet) having a strong pulsation feeling. By repeatedly stimulating the skin sensation, it is possible to cause the user to feel strong washing.

In the first embodiment, a configuration in which the gap 315 is provided over the entire circumference of the wall surface forming the buttocks cleaning channel 310 is not limited to this, and at least two locations are provided in the small hole portion. Should be provided.

In the first embodiment, the nozzle unit 200 is composed of two components, ie, the nozzle body 300 and the nozzle cover 400. However, the present invention is not limited to this, and the nozzle unit 200 may be composed of only the nozzle body 300.

In the first embodiment, the nozzle body 300 is configured to have two functions of the buttocks cleaning function and the bidet cleaning function. However, the present invention is not limited to this. A configuration having only a single cleaning function may be used.

Further, in the first embodiment, the stepped portion 314, the pressure communication passage 317, the speed change portion 323, and the ejection flow channel 312 are inclined in the nozzle device 100, and the ejection flow channel 312 is made to have a small hole portion 321 and a large hole portion 322. However, the present invention is not limited to this, and it is only necessary to form the step portion 314 and the pressure communication path 317 in the nozzle device 100, and whether or not to add other components is arbitrary. It is.

[Modification 1]
Next, a modified example of the nozzle device 100 according to the first embodiment will be described.

FIG. 9 is a cross-sectional view schematically showing a schematic configuration of a tip portion in the nozzle device of the first modification.

As shown in FIG. 9, the basic configuration of the nozzle device 100 according to the first modification of the first embodiment is the same as that of the nozzle device 100 according to the first embodiment, but the ejection flow path 312 is stepped. The difference is that it is not formed.

Even the nozzle device 100 according to the first modification configured as described above has the same effects as the nozzle device 100 according to the first embodiment. Needless to say, the sanitary washing device 10 including the nozzle device 100 according to the first modification also has the same effects as the sanitary washing device 10 according to the first embodiment.

[Modification 2]
The nozzle device of the second modification has at least two gaps provided so that the pressure communication passage communicates with the main water channel, and a communication passage provided so as to communicate the at least two gaps. The form which is shown is illustrated.

FIG. 10 is a cross-sectional view schematically showing a schematic configuration of the pressure communication path in the nozzle device of the second modification.

As shown in FIG. 10, the nozzle device 100 according to the second modification of the first embodiment has the same basic configuration as the nozzle device 100 according to the first embodiment. At least two

gaps

315 and 315 provided so as to communicate with the cleaning flow path 310, and a communication passage provided here so as to communicate with the at least two gaps 315 and 315 (here, the pressure communication chamber 316); Is different. Specifically, the two

gaps

315 and 315 are provided on the front end side and the rear end side of the nozzle device 100 so as to face each other. Further, the pressure communication chamber 316 is provided in an annular shape so as to surround the entire circumference of the ejection flow path 312.

In the second modification, the two

gaps

315 and 315 are provided so as to face each other on the front end side and the rear end side of the nozzle device 100. However, the present invention is not limited to this. As long as the two

gaps

315 and 315 are provided outside the ejection channel 312 and communicated with the buttocks cleaning channel 310, the positions of the two

gaps

315 and 315 are arbitrary.

In the second modification, a configuration in which two gaps 315 are provided is adopted. However, the present invention is not limited to this, and the number of gaps 315 provided is two or more as long as it is two or more.

Furthermore, in the second modification, the pressure communication chamber 316 that communicates the at least two

gaps

315 and 315 is formed in an annular shape so as to surround the entire circumference of the ejection flow path 312, but is not limited thereto. The shape of the pressure communication chamber 316 is arbitrary as long as at least two

gaps

315 and 315 communicate with each other. For example, the pressure communication chamber 316 may be formed so as to surround the half circumference of the ejection flow path 312.

Even the nozzle device 100 of the second modification formed in this way has the same operational effects as the nozzle device 100 according to the first embodiment. Needless to say, the sanitary washing device 10 including the nozzle device 100 according to the second modification also has the same effects as the sanitary washing device 10 according to the first embodiment.

[Modification 3]
The nozzle device of the third modification exemplifies a mode in which the pressure communication path is provided along the wall surface constituting the main water channel.

FIG. 11 is a cross-sectional view schematically showing a schematic configuration of a tip portion in the nozzle device of the third modification.

As shown in FIG. 11, the nozzle device 100 according to the third modification of the first embodiment has the same basic configuration as the nozzle device 100 according to the first embodiment, but the pressure communication path 317 includes only the gap 315. It is different in that it is formed.

Even the nozzle device 100 of the third modification formed in this way has the same operational effects as the nozzle device 100 according to the first embodiment. Needless to say, the sanitary washing device 10 including the nozzle device 100 of the third modification also has the same effects as the sanitary washing device 10 according to the first embodiment.

From the above description, many modifications and other embodiments of the present invention are apparent to persons skilled in the art. Accordingly, the foregoing description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The details of the structure and / or function may be substantially changed without departing from the scope of the invention. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment.

The nozzle device according to the present invention and the sanitary cleaning device including the nozzle device are useful in the field of cleaning devices because they can be easily implemented even in a composite nozzle with a small and simple configuration and can eject a vibration flow.

DESCRIPTION OF SYMBOLS 1 Water supply channel 2 Main nozzle 3 Main water channel 4 Turning water channel 5 Spout 10 Sanitary washing device 20 Main body 21 Seating detection sensor 30 Toilet lid 40 Toilet seat 50 Human body detection sensor 60 Remote controller 70 Toilet 100 Nozzle device 110 Casing 111 Nozzle guide 112 Tip opening DESCRIPTION OF SYMBOLS 113 Nozzle drive means 114 Drive motor 115 Pinion gear 120 Upper case 130 Lower case 140 Nozzle shutter 200 Nozzle unit 300 Nozzle body 301 Nozzle body base material 302 Nozzle cover member 303 Nozzle bottom member 310 Butt washing channel (main water channel)
311 Bent part 312 Ejection flow path 313 Bending part 314 Step part 315 Gap 316 Pressure communication chamber (communication path)
317 Pressure communication passage 319 Buttocks cleaning water supply port 320 Buttocks cleaning spout (spout)
321 Small hole part 322 Large hole part 323 Speed change part 330 Bidet cleaning flow path 331 Orifice 332 Water chamber 339 Bidet cleaning water supply port 340 Bidet cleaning outlet 341 Bidet outlet flow path 400 Nozzle cover 410 Nozzle cover body 411 Ejection opening 412 Drainage outlet 420 Nozzle rack block 421 Rack 500 Connection means

Claims

Equipped with a nozzle body,
In the nozzle body,
A main channel through which wash water flows,
A spout for ejecting the washing water;
An ejection channel that communicates the main water channel and the ejection port; and
The ejection channel is provided with a step portion so that the sectional area of the ejection channel is smaller than the sectional area of the main water channel,
A pressure communication path is provided outside the ejection channel,
The nozzle device, wherein the pressure communication path includes at least two gaps provided so as to communicate with the main water channel, and a communication path provided so as to communicate the at least two gaps.
The nozzle device according to claim 1, wherein the pressure communication path is provided along the outer periphery of the ejection flow path.
2. The nozzle device according to claim 1, wherein the pressure communication path includes a gap provided along the outer periphery of the ejection flow path and an annular pressure communication chamber communicating with a terminal end of the gap. .
2. The nozzle device according to claim 1, wherein the ejection flow path is formed in a step shape so that a cross-sectional area of a distal end portion is larger than a proximal end portion.
The nozzle device according to claim 1, wherein the ejection channel is provided such that an axis thereof is inclined by 5 to 20 degrees toward a rear end side of the nozzle body with respect to an axis of the main water channel. .
A cylindrical nozzle cover covering at least a part of the nozzle body is provided,
The nozzle cover is provided with an ejection opening,
The nozzle device according to claim 1, wherein the nozzle body and the nozzle cover are configured to be slidable.
The nozzle device according to claim 1, wherein a transmission portion configured to change a flow rate of a part of the washing water flowing through the main water channel is provided in the middle of the main water channel.
In the middle of the main water channel, a bent portion that is bent at a right angle and a curved portion having a curved surface are provided,
The nozzle device according to claim 7, wherein the transmission unit includes the bent portion and the curved portion.
A nozzle device according to claim 1;
Cleaning water supply means for supplying cleaning water to the nozzle device;
Control means for controlling the nozzle device and the washing water supply means;
A sanitary washing device comprising: a toilet seat placed on the upper surface of a toilet bowl.