TW202018158A - Hygienic cleaning device - Google Patents

Abstract

This hygienic cleaning device is provided with a heat exchanger for heating cleaning water, a cleaning nozzle, a bubble-generating unit for generating cleaning bubbles, a spraying nozzle for discharging the cleaning bubbles onto a toilet inner surface, a spraying nozzle drive unit for driving the spraying nozzle, an opening/closing valve for opening and closing a branching flow channel, and a control unit. The control unit rotates the spraying nozzle drive unit forward and in reverse while varying the output of a delivered water amount varying unit, and controls the direction of a discharge port of the spraying nozzle so that cleaning bubbles are sprayed in at least a two-way rotating action throughout the inner periphery of the toilet. A hygienic cleaning is thereby provided with which a film of bubbles is formed from the front through to the rear of the toilet inner surface, and adhesion of stains can be minimized.

Description

Sanitary washing device Field of invention

The invention relates to a sanitary washing device for washing parts of the human body.

Background of the invention

Conventionally, in such a sanitary washing device, the washing nozzle protrudes from the storage position to the buttock washing position or the genital washing position. Then, the washing water is discharged from the outlet of the washing nozzle. With this, a configuration for washing the parts of the human body is provided.

A sanitary washing device equipped with a washing nozzle for washing parts of the human body differently in this case and spraying foam on the inner surface of the toilet before defecation to form a foam film on the inner surface of the toilet has been patented in Japan, for example Japanese Patent Laid-Open No. 2000-104319 is proposed (hereinafter, referred to as "Patent Document 1").

The sanitary washing device of Patent Document 1 is such that when a person's seating is detected by the detection unit, the spray nozzle automatically sprays foam. In this way, a foam film is formed on the inner surface of the toilet before defecation to prevent the adhesion of dirt on the inner surface of the toilet.

However, for the inner surface of the toilet, there will be insufficient foam dispersal The delivered parts, etc., may not be able to expect sufficient effects as anti-fouling measures.

Summary of the invention

The invention provides a sanitary washing device which forms a foam film from the inner surface of the front of the toilet to the rear to suppress the adhesion of dirt.

That is, the sanitary washing device of the present invention is provided with: a toilet seat that is freely lifted upside down, supported by the toilet seat as a body that can be lifted upside down, a heat exchanger for heating washing water, and a washing nozzle for washing the human body 1. A foam generating part that generates washing foam, and a spray nozzle that spits washing water or washing foam onto the inner surface of the toilet. Furthermore, it is provided with a variable amount of spouted water that can change the flow rate of the washing water sent to the sprinkling nozzle, a sprinkling nozzle driving section that rotates in the direction of the spout of the sprinkling nozzle, and opens the water path to the sprinkling nozzle Closed on-off valve, control unit, and operation unit. In addition, the control unit controls the spray nozzle to distribute the washing foam to areas with different heights on the inner surface of the toilet.

According to this configuration, when dispersing foam (hereinafter referred to as “washing foam”) from the spray nozzle to the toilet foam, the control unit controls the spray nozzle to an area with a high height position on the inner surface of the toilet and It is distributed in almost all the weeks of several areas lower than it.

By this, a foam film is formed on the inner surface from the front to the back of the toilet, and the adhesion of dirt is suppressed.

100‧‧‧Sanitary washing device

110‧‧‧toilet

110a‧‧‧edge

110b‧‧‧Draught Noodle

115‧‧‧Export

120‧‧‧Deodorization device

130‧‧‧Control Department

200‧‧‧Body

201‧‧‧Rear body shell

210‧‧‧Operation Department

211‧‧‧Infrared receiver

220‧‧‧Operation switch

221、410‧‧‧Hip washing switch

222‧‧‧Nozzle sweep switch

230‧‧‧Set switch

231‧‧‧warm water temperature switch

232‧‧‧seat temperature switch

233‧‧‧Close 8 hours switch

234‧‧‧Power saving switch

235‧‧‧ Automatic lid opening and closing switch

240‧‧‧ display light

300‧‧‧seat

320‧‧‧Bilet

330‧‧‧Seating sensor

331‧‧‧seat open and close sensor

360‧‧‧seat toilet seat cover rotating mechanism

400‧‧‧Remote control

401‧‧‧ Remote control body

402‧‧‧ Transmission Department

411‧‧‧ Pussy washing switch

412‧‧‧Stop switch

413‧‧‧Mobile washing switch

414‧‧‧Rhythm washing switch

415‧‧‧washing strength switch

416‧‧‧ Washing position switch

417‧‧‧Diffusion switch

418‧‧‧ lid switch

419‧‧‧seat switch

421‧‧‧LED intensity warning light

422‧‧‧ position indicator

450‧‧‧Human body detection sensor

500‧‧‧ Washing Department

501‧‧‧Chassis

501a‧‧‧Water pump installation department

501b‧‧‧foot

502, 802‧‧‧ connection pipe

510‧‧‧ Water supply connection

511‧‧‧ filter

512、531‧‧‧Check valve

513‧‧‧ Constant flow valve

514‧‧‧Water stop solenoid valve

515‧‧‧overflow valve

516‧‧‧Water pump (variable discharge volume)

516a‧‧‧Motor Department

516b‧‧‧Link Mechanism Department

516c‧‧‧Piston

516d‧‧‧Suction port

516e‧‧‧spit spout

517‧‧‧Fluid regulating valve

517a‧‧‧Valve body

517b‧‧‧stepping motor

517c‧‧‧Water supply

530‧‧‧Different channels

530a‧‧‧ On-off valve

532‧‧‧ Foam box

533‧‧‧Lotion box

534‧‧‧Lotion pump

535‧‧‧Air pump

550‧‧‧Spray nozzle

550a‧‧‧Spray nozzle driver

550b‧‧‧Inlet flow path

550c‧‧‧Main

550d‧‧‧rotating nozzle

550e, 550f‧‧‧O-ring

550h‧‧‧ Entrance hole

550n‧‧‧shaft

550u‧‧‧spit

560‧‧‧Foam Generation Department

600‧‧‧Auxiliary water tank

601, 711‧‧‧ water inlet

602‧‧‧Water outlet

603, 613‧‧‧ Atmospheric opening

610‧‧‧Box body

611‧‧‧Front box

612‧‧‧Rear box

613a‧‧‧Buffer Department

613b‧‧‧Flow

614‧‧‧ partition wall

615‧‧‧Into the sink

615a‧‧‧ Upper opening

616‧‧‧storage tank

617‧‧‧Ball wall

618‧‧‧Rectifying ribs

620‧‧‧Water level detection sensor

621‧‧‧Common electrode

622‧‧‧Water level electrode

623‧‧‧Upper limit electrode

624‧‧‧Lower limit electrode

630‧‧‧Inlet water temperature sensor

690‧‧‧Clean water supply flow path

700‧‧‧ heat exchanger

701‧‧‧Housing

702‧‧‧flat heater

703‧‧‧Hot water discharge member

710‧‧‧Front member

712‧‧‧Hot water outlet

713‧‧‧Inlet flow path

714‧‧‧ slit

715‧‧‧Heating flow path

716‧‧‧Partition rib

717‧‧‧Water hole

718‧‧‧protrusion

720‧‧‧Back member

730‧‧‧Hot water discharge temperature sensor

731‧‧‧Overheating sensor

750‧‧‧Buffer box

800‧‧‧ nozzle device

801‧‧‧ nozzle cover

810‧‧‧Support

811‧‧‧Bottom part

812‧‧‧inclined part

813‧‧‧Vertical side

814‧‧‧rail

815‧‧‧Rack guide

816‧‧‧Holding Department

817‧‧‧Water supply connector

820‧‧‧Nozzle Department

830‧‧‧Nozzle body

831‧‧‧Hip washing nozzle

832‧‧‧ Pussy washing nozzle

833‧‧‧Nozzle cleaning department

834‧‧‧Hip cleaning spray outlet

835‧‧‧Hip washing channel

835a‧‧‧rectifier board

836‧‧‧ Pussy cleaning spray outlet

837‧‧‧ Pussy washing channel

838‧‧‧Nozzle cleaning nozzle

839‧‧‧Nozzle cleaning flow path

840‧‧‧Nozzle sleeve

841‧‧‧ Nozzle sleeve body

842‧‧‧Connecting member

843‧‧‧Link

843a‧‧‧Link protrusion

844‧‧‧Ejection opening

845‧‧‧Drain

850‧‧‧Link

851‧‧‧Link bearing part

851a‧‧‧Front depression

851b‧‧‧recessed part

860‧‧‧ Washing nozzle drive unit

861‧‧‧Flexible rack

862‧‧‧Pinion

863‧‧‧Drive motor

P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P20‧‧‧

TF, TR‧‧‧Scattered moving track

Fig. 1 shows that the sanitary washing device in the embodiment of the present invention has been installed A perspective view of the state of being placed in the toilet.

Fig. 2 is a perspective view of a state where the front body case of the sanitary washing device is removed.

Fig. 3 is a perspective view of a state where the front body case and the control part of the sanitary washing device are removed.

Fig. 4 is a perspective view showing the upper surface of the operation portion of the sanitary washing device.

5 is a perspective view showing the appearance of the remote controller.

Fig. 6 is a schematic diagram showing the configuration of the water circuit of the washing section of the sanitary washing device.

7 is a perspective view showing an exploded state of the water circuit of the sanitary washing device.

FIG. 8 is a perspective view showing the assembled state of the water circuit of the sanitary washing device.

9 is a perspective view showing the appearance of the sub-tank of the water circuit.

10 is a cross-sectional view of the auxiliary water tank viewed from the front.

Fig. 11 is a cross-sectional view of the auxiliary water tank viewed from the side.

12 is a perspective view showing the appearance of the heat exchanger of the water circuit.

Fig. 13 is a cross-sectional view of the heat exchanger.

14 is a perspective view showing the appearance of the water pump of the water circuit.

15 is a cross-sectional view of the water pump.

Fig. 16 is a perspective view showing the appearance of the storage state of the nozzle device of the sanitary washing device.

17 is a cross-sectional view taken along line 17-17 shown in FIG.

18 is a longitudinal sectional view of the storage state of the nozzle device.

19 is a detailed cross-sectional view of part B shown in FIG. 18.

20 is a cross-sectional view taken along line 20-20 shown in FIG.

21 is a cross-sectional view of the storage state of the nozzle device.

22 is a detailed cross-sectional view of part C shown in FIG. 21.

23 is a longitudinal cross-sectional view showing the state of washing the buttocks of the nozzle device.

24 is a detailed cross-sectional view of part D shown in FIG. 23.

Fig. 25 is a longitudinal cross-sectional view showing the state of washing the genitals of the nozzle device.

FIG. 26 is a detailed cross-sectional view of part E shown in FIG. 25. FIG.

Fig. 27 is a cross-sectional view showing the state of washing the genitals of the nozzle device.

FIG. 28 is a detailed cross-sectional view of part F shown in FIG. 27. FIG.

Fig. 29 is a timing chart of the washing section when the sanitary washing device is used in the initial stage.

Fig. 30 is a time chart of the washing unit during normal use of the sanitary washing device.

Fig. 31 is a perspective view showing the appearance of the spray nozzle of the sanitary washing device.

Fig. 32 is a longitudinal sectional view of the spray nozzle.

33 is a plan view showing the installation position of the spray nozzle and the rotation angle of the discharge nozzle of the spray nozzle in the sanitary washing device.

Fig. 34 is a graph showing the pump output at the rotation angle of the discharge port of the spray nozzle.

FIG. 35A is a graph showing the pump output during the discharge operation of the spray nozzle toward the inner surface of the toilet.

FIG. 35B is an explanatory view showing the discharge operation of the spray nozzle toward the inner surface of the toilet.

FIG. 36A is a graph showing the pump output during the discharge operation of the spray nozzle toward the inner surface of the toilet.

36B is an explanatory view showing the discharge operation of the spray nozzle toward the inner surface of the toilet.

Forms for carrying out the invention

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Furthermore, the present invention is not limited by this embodiment.

(Form of implementation)

<1> The overall structure of the sanitary washing device

Hereinafter, the overall configuration of the sanitary washing device in this embodiment will be described with reference to FIGS. 1 to 5.

Fig. 1 is a perspective view of a state in which a sanitary washing device according to an embodiment of the present invention has been installed on a toilet. 2 is a perspective view of a state where the front body case of the body of the sanitary washing device is removed. Fig. 3 is a perspective view of a state where the front body case and the control portion of the body of the sanitary washing device are removed. Fig. 4 is a perspective view showing the upper surface of the operation portion of the sanitary washing device. 5 is a perspective view showing the appearance of the remote controller.

As shown in FIG. 1, the sanitary washing apparatus 100 of this embodiment includes at least a main body 200, a toilet seat 300, a toilet cover 320, a remote controller 400, a human body detection sensor 450, and the like as main constituent elements. The body 200, the toilet seat 300 and the toilet cover 320 are integrally formed, and are disposed on the upper surface of the toilet 110.

In addition, in the following, the installation side of the body 200 of the sanitary washing apparatus 100 is set to the rear, the installation side of the toilet seat 300 is set to the front, and the right side facing the front is set to the right and facing the front The left side is set to the left to explain the arrangement of each component.

The operation part 210 protrudes from the right side of the body 200 and is provided integrally. The toilet seat rotation mechanism 360 is provided on the front side of the body 200, and drives the toilet seat 300 and the toilet seat 320 to open and close freely. Furthermore, the toilet seat rotation mechanism 360 is composed of, for example, a DC motor and a plurality of gears, and the toilet seat 300 and the toilet seat 320 are opened individually or simultaneously.

Moreover, as shown in FIG. 1, when the toilet cover 320 is opened, the toilet cover 320 will stand up to be located at the last position of the sanitary washing device 100. On the other hand, when the toilet cover 320 is closed, the toilet cover 320 will cover the upper surface of the toilet seat 300.

The toilet cover 320 is a member made of resin material such as PP (polypropylene) or ABS (acrylonitrile-butadiene-styrene), etc., and has a double-layer structure and a heat insulating material Adiabatic structure.

The toilet seat 300 includes a toilet seat heater (not shown) that heats the seating surface. The toilet seat heater is used for heating to make the seating surface of the toilet seat 300 a comfortable temperature.

In addition, the seating sensor 330 is a bearing portion disposed in the body 200 supporting the rotating shaft of the toilet seat 300, and constitutes a seating detection portion for detecting a human body seated on the toilet seat 300. The seating sensor 330 is composed of, for example, a weight type sensor, and uses a weight change formed by the user sitting on the toilet seat 300 to turn the switch on and off. Thereby, the seating sensor 330 detects whether a user is seated on the seating surface of the toilet seat 300.

As shown in FIGS. 2 and 3, the inside of the main body 200 includes: a sub-tank 600, a heat exchanger 700, a washing unit 500 including a nozzle device 800, a spray nozzle 550, a deodorizing device 120, a control unit 130, etc. . The nozzle device 800 has, for example, a buttocks washing nozzle 831 as a washing nozzle for washing a part of the human body. The spray nozzle 550 spreads washing water or washing foam on the inner surface of the toilet. The deodorizing device 120 eliminates odor during defecation. The control unit 130 controls each function of the sanitary washing device 100. In the following, the buttock washing nozzle 831 will be described as an example of the washing nozzle.

The nozzle device 800 as the main constituent element of the cleaning unit 500 is provided in the central portion of the main body 200. A spray nozzle 550 is provided on the right side of the nozzle device 800 and also in front of the body 200 which is placed on the toilet 110 and fixedly installed. A deodorizing device 120 is provided on the left side of the nozzle device 800. The left side portion of the nozzle device 800 is provided with a toilet seat rotation mechanism 360 that opens and closes the toilet seat 300 and the toilet seat 320.

On the right side of the nozzle device 800, a water stop solenoid valve 514, a relief valve 515 of the washing unit 500, a sub tank 600, and the like are further provided in front. A heat exchanger 700 is provided behind the nozzle device 800. Behind the heat exchanger 700 is provided a water pump 516 that constitutes a variable amount of water discharge. The control unit 130 is provided above the cleaning unit 500.

As shown in FIG. 4, the operation unit 210 is provided with a plurality of switches and indicator lamps 240 for operating and setting the functions of the sanitary washing apparatus 100. An operation board (not shown) is provided inside the operation unit 210. The operation board is provided with a plurality of tact switches (not shown) and a plurality of LEDs (light emitting diodes). Furthermore, through the switch attached to the upper surface of the operation part 210 The nameplate makes it possible to press the touch switch and visually identify the LED.

In addition, the operation unit 210 includes an infrared receiver 211 behind the upper surface. The infrared receiver 211 receives infrared signals transmitted by the remote controller 400 and the human body detection sensor 450 shown in FIG. 1.

The switch of the operation unit 210 is composed of a plurality of operation switches 220 for operating a washing operation, a plurality of setting switches 230 for setting various functions, and the like. In addition, the display lamp 240 is composed of a plurality of LEDs, and displays the setting state of the body 200.

The operation switch 220 of the operation unit 210 is composed of, for example, a buttocks cleaning switch 221 and a nozzle cleaning switch 222. The hip cleansing switch 221 is used as an aid when the battery of the remote control 400 is out of charge or malfunctions. The nozzle cleaning switch 222 is operated to clean the nozzle when performing nozzle cleaning.

The setting switch 230 of the operation unit 210 is composed of, for example, a warm water temperature switch 231, a toilet seat temperature switch 232, an 8-hour-off switch 233, a power-saving switch 234, a toilet lid automatic opening and closing switch 235, and the like.

Each switch performs the following operations by the user's pressing operation.

The warm water temperature switch 231 is used to set the temperature of the washing water. The toilet seat temperature switch 232 is used to set the temperature of the toilet seat 300. After the 8-hour switch 233 is turned off, the warming of the toilet seat 300 will be stopped and the warming of the toilet seat 300 will start again after 8 hours. The power saving switch 234 automatically learns the time period when the sanitary washing device 100 is not in use, and reduces the heat preservation temperature of the toilet seat 300 during the time period when it is not in use to save power. Automatic lid opening and closing switch 235 is used to set the toilet The seat 300 and the toilet lid 320 are automatically opened and closed.

In addition, most operations of the sanitary washing apparatus 100 are performed by a remote controller 400 which is a separate entity from the body 200. Therefore, the remote controller 400 is installed on the wall of the toilet where the user sitting on the toilet seat 300 can easily operate.

As shown in FIG. 5, the overall shape of the remote controller 400 is formed by a thin cuboid. The remote controller 400 is provided with a plurality of switches and indicator lights on the upper surface and the front surface of the box-shaped remote controller body 401 formed of a resin material such as PP (polypropylene) or ABS. A transmission portion 402 that transmits the operation signal of the remote controller 400 to the body 200 by infrared rays is disposed near the upper corner of the remote controller body 401.

A control board (not shown) constituting the control function of the remote controller 400 and a battery (not shown) as a power source of the remote controller 400 are built in the remote controller body 401.

In the center of the front surface of the remote control body 401, for example, a hip washing switch 410, a genital washing switch 411, a stop switch 412, a moving washing switch 413, a rhythm washing switch 414, and the like are arranged.

By the user's pressing operation, each switch performs the following operations.

The hip washing switch 410 will start hip washing. The genital washing switch 411 will start washing the female partly washed genitals. The stop switch 412 will stop the washing of the buttocks and the washing of the pussy. The mobile washing switch 413 periodically moves the washing position forward and backward when washing the buttocks and the genitals, making it possible to perform a wide range of washing. The rhythm wash switch 414 will wash the hips The washing intensity is periodically changed to perform washing.

On the front surface of the remote control body 401, for example, a washing intensity switch 415, a washing position switch 416, and a spreading switch 417 are arranged. The washing intensity switch 415 adjusts the washing intensity when washing the buttocks and the genitals with two switches. The washing position switch 416 adjusts the washing position when washing the buttocks and the genitals with two switches. The dispersing switch 417 discharges washing water or washing foam from the dispersing nozzle 550 and disperses it on the inner surface of the toilet or the surface of the washing nozzle.

Above the washing intensity switch 415, an LED intensity indicator 421 that displays the washing intensity in five stages, for example, is arranged. Further, above the washing position switch 416, a position display lamp 422 that displays the washing position in five stages, for example, is arranged.

The upper surface of the remote control body 401 is provided with a toilet cover switch 418 for electrically opening the toilet seat 320, and a toilet seat switch 419 for electrically opening the toilet seat 300. In addition, the user can open the toilet seat 300 and the toilet lid 320 arbitrarily by the operation of each switch. Here, the open state of the toilet seat 300 means, for example, a state where the toilet seat 300 is erected approximately vertically (including vertical) like when a man urinates. On the other hand, the closed state of the toilet seat 300 means a state in which the toilet seat 300 is approximately parallel (including parallel) to the frame surface on the toilet 110. Furthermore, the open state or the closed state of the toilet seat 300 can be detected by a signal from the toilet seat opening and closing sensor 331 as a toilet seat opening and closing detection section.

In addition, the human body detection sensor 450 shown in FIG. 1 is constituted separately from the body 200, and is installed on the wall of a toilet, for example. people The body detection sensor 450 is composed of, for example, a thermal sensor, a sensor control unit, an infrared transmission unit, and a battery as a power source of the human body detection sensor 450, which are not shown. The thermal sensor will receive the infrared rays emitted by the human body. The sensor control part will detect the human body with the signal of the thermal sensor. The infrared transmission part transmits the human body detection signal from the sensor control part to the control part of the body 200 with infrared rays.

As described above, the sanitary washing device 100 of this embodiment can be constituted.

<2> Water circuit structure of sanitary washing device

Hereinafter, the configuration of the water circuit of the sanitary washing device of the present embodiment will be described using FIG. 6.

Fig. 6 is a schematic diagram showing the configuration of the water circuit of the sanitary washing device.

Furthermore, the washing part 500 shown in FIG. 6 is built into the body 200 and is used to wash a part of the user.

As shown in FIG. 6, the washing unit 500 constituting the water circuit is a series of washing water supply flows that supply the washing water from the water supply connection port 510 to the nozzle device 800 by at least the nozzle device 800 that sprays the washing water Road 690 and so on.

The washing water supply flow path 690 is provided with a water supply connection port 510, a filter 511, a check valve 512, a constant flow valve 513, a water stop solenoid valve 514, an overflow valve 515, an auxiliary water tank 600, and a heat exchanger 700, a buffer tank 750, a water pump 516 constituting a variable amount of water discharge, and a fluid regulating valve 517, etc. In addition, the washing water supply channel 690 is finally connected to the nozzle device 800.

The water supply connection port 510 is disposed below the right side of the body 200 and is connected to, for example, an external water pipe line. The filter 511 is disposed inside the water supply connection port 510 to prevent the inflow of sand and the like contained in the tap water. The check valve 512 prevents the water stored in the sub-tank 600 from flowing back to the water pipe line.

The constant flow valve 513 is arranged downstream of the check valve 512 to keep the amount of wash water flowing to the wash water supply flow path 690 constant. The water stop solenoid valve 514 switches the washing water supply flow path 690 electrically according to the signal of the control unit 130. As shown in FIG. 7, the constant flow valve 513 is integrally formed with the water stop solenoid valve 514 and the relief valve 515.

The sub-tank 600 is arranged downstream of the water stop solenoid valve 514 and has an atmosphere opening port 603. The heat exchanger 700 can instantly heat the washing water. The buffer tank 750 makes the temperature of the warm water heated by the heat exchanger 700 uniform.

The water pump 516 constituting the variable water discharge amount portion is connected downstream of the buffer tank 750. The nozzle device 800 is arranged downstream of the water pump 516 and is connected to the water pump 516 through the fluid regulating valve 517. Each port of the fluid regulating valve 517 is connected to the hip washing nozzle 831, the female washing nozzle 832, the nozzle cleaning portion 833, and the like of the nozzle device 800.

As shown in FIG. 6, the divergent flow path 530 includes an on-off valve 530 a and is arranged to diverge between the water pump 516 and the fluid regulating valve 517 of the wash water supply flow path 690. The divergent flow path 530 connects the wash water supply flow path 690 and the foam generating portion 560.

The foam generating part 560 is composed of a check valve 531, a foam tank 532, a detergent tank 533, a detergent pump 534, an air pump 535, and the like.

The diverging flow path 530 supplies the washing water to the check valve 531 to The foam box 532 of the foam generating part 560.

The spray nozzle 550 is connected downstream of the foam box 532, and is rotationally driven by the spray nozzle driving portion 550a. The lotion tank 533 and the lotion pump 534 are connected to the foam tank 532 and supply the lotion to the foam tank 532.

The air pump 535 will send air into the foam tank 532 that has been supplied with washing water and lotion, and in the case of lotion, it will generate washing foam. Then, the generated washing foam, washing water, and the like are supplied from the foam tank 532 to the spray nozzle 550.

In addition, the dotted line shown in FIG. 6 shows that each component is electrically connected to the control unit 130 to be controlled.

In addition, as shown in FIGS. 7 and 8, among the components constituting the cleaning unit 500 are the water supply connection port 510, the filter 511, the check valve 512, the constant flow valve 513, the water stop solenoid valve 514, and the overflow The valve 515, the sub-water tank 600, the heat exchanger 700, the buffer tank 750, and the water pump 516 are incorporated in the chassis 501. The chassis 501 is molded of a resin material such as ABS, and is mounted on the body case 201 after the body 200 as shown in FIG. 2.

Specifically, the filter 511 and the check valve 512 are integrated with the water supply connection port 510. The constant flow valve 513 and the relief valve 515 are integrated with the water stop solenoid valve 514. The buffer tank 750 is formed integrally with the heat exchanger 700.

The water supply connection port 510 and the water stop solenoid valve 514, the water stop solenoid valve 514 and the sub-water tank 600, and the sub-water tank 600 and the heat exchanger 700 do not pass through a connecting pipe or the like, but pass through, for example, an O-ring (O-ring) ( (Not shown) etc. are directly connected by packing. Moreover, the various components that make up the water circuit The piece is set and fixed at a predetermined position of the chassis 501.

With the above configuration, a watertight structure can be realized and the arrangement accuracy of mutual components can be improved. In particular, the arrangement accuracy of the auxiliary water tank 600 and the heat exchanger 700 can be improved. With this, the control accuracy of the flow rate of the washing water is improved. As a result, the performance of the cleaning section 500 can be improved and the flow control accuracy can be improved.

Next, the configuration of the water pump 516 constituting the variable water discharge amount will be described with reference to FIGS. 7 and 8 and using FIGS. 14 and 15.

14 is a perspective view showing the appearance of the water pump of the water circuit. 15 is a cross-sectional view of the water pump.

As shown in FIGS. 14 and 15, the water pump 516 is constituted by, for example, a piston pump having a positive displacement pump having a substantially L-shape (including an L-shape). The water pump 516 is composed of a substantially cylindrical (including cylindrical) motor portion 516a, a link mechanism portion 516b, a piston portion 516c, and the like. The link mechanism portion 516b converts the rotational motion of the motor into a reciprocating motion. The piston part 516c is driven by the reciprocating motion of the link mechanism part 516b, and attracts and discharges washing water. Therefore, the piston portion 516c has a water suction port 516d and a discharge port 516e on the outside as a connection port.

In addition, in the case of the water pump 516 of the present embodiment, compared to the link mechanism part 516b and the piston part 516c accompanying the reciprocating motion, the vibration generated by the motor part 516a which has only the rotary motion is less constitute.

Specifically, the operation of the water pump 516 is that, first, after driving the motor portion 516a, the piston portion 516c starts to reciprocate. As a result, the piston portion 516c sucks the washing water through the water suction port 516d and discharges the washing water from the discharge port 516e. At this time, the washing water discharged from the discharge port 516e is accompanied by the piston portion 516c The reciprocating movement of spitting out with a moderate pulsating current.

In addition, the outer periphery of the substantially cylindrical (including cylindrical) motor portion 516a of the water pump 516 configured as described above is surrounded by a cushioning member (not shown) made of foamed resin having elasticity. The motor portion 516a is inserted into a substantially cylindrical (including cylindrical) water pump installation portion 501a provided at the rear of the chassis 501. Thereby, the water pump installation part 501a supports the motor part 516a. At this time, the link mechanism portion 516b and the piston portion 516c are installed in a state where the suspension is suspended downward.

Furthermore, as shown in FIG. 7, the water pump installation portion 501 a is formed of thin ABS resin or the like, and is formed on the upper portion of the rib-shaped leg portion 501 b that stands up from the bottom surface of the bottom frame 501. Accordingly, the elasticity of the resin constituting the water pump installation portion 501a can effectively absorb the vibration of the water pump 516.

In addition, the hot water discharge port 712 as the connection port of the heat exchanger 700 integrated with the buffer tank 750 and the water suction port 516d as the connection port of the water pump 516 are connection tubes 502 made of soft resin (refer to FIG. 8) To connect.

As described above, the water pump 516 of the present embodiment is a water pump installation portion 501a formed with a thin thickness, and the motor portion 516a with less vibration is installed in the chassis 501 through the buffer member. On the other hand, the link mechanism portion 516b and the piston portion 516c that generate much vibration are suspended and installed in a free state. Further, the piston portion 516c and the like are connected to the buffer tank 750 through a connection tube 502 (see FIG. 8) made of soft resin. Thereby, transmission of vibration generated by the water pump 516 during driving can be suppressed from being transmitted to the chassis 501, other members, and the body 200. As a result, the comfort and durability of the sanitary washing device 100 during use can be improved.

In particular, the water pump 516 is supported by a cushion member made of foamed resin and two different materials having elastic resin forming the water pump installation portion 501a. Therefore, it is possible to absorb vibration of a wide range of frequencies. With this, transmission of vibration to the body 200 can be suppressed more effectively.

As described above, the water circuit of the sanitary washing device 100 of this embodiment can be constituted.

<3> Composition of auxiliary water tank

Hereinafter, the configuration of the sub-tank of the sanitary washing device in this embodiment will be described with reference to FIGS. 9 to 11.

9 is a perspective view showing the appearance of the sub-tank of the water circuit. 10 is a cross-sectional view of the sub-tank in the lateral direction. 11 is a cross-sectional view of the sub-tank in the front-rear direction.

First, as shown in FIG. 9, the sub-tank 600 is at least composed of a tank body 610 formed of a resin material such as ABS, a water level detection sensor 620, and an inlet water temperature sensor 630. The water level detection sensor 620 detects the water level of the washing water stored in the tank body 610. The inlet water temperature sensor 630 is constituted by, for example, a thermistor or the like, and detects the temperature of the washing water supplied into the tank body 610.

The box body 610 is three of the front box 611 constituting the front wall, the side walls, the bottom surface, and the top surface of the box, the rear box 612 constituting the rear wall of the box, and the atmosphere opening portion 613 disposed on the top surface of the box body 610. Components. The overall shape of the box body 610 is formed by a plurality of planes composed of a front wall, a rear wall, two side walls, a bottom surface, and a top surface, and as shown in FIG. The shape at the time of viewing is formed by a substantially square shape (including a square shape). The front wall of the front box 611 is provided with an inclined portion that starts to retreat halfway. That is, as shown in FIG. 11, the box body 610 is formed in a substantially trapezoidal shape (including a trapezoidal shape) in which the upper portion becomes thinner than the lower portion in the shape when viewed from a side perspective. Thereby, the cross-sectional area of the upper portion of the box body 610 becomes a smaller cross-sectional area than the lower portion.

In addition, the tank body 610 is provided with a water inlet 601 at the lower part of one side wall of the front box 611 and the water outlet 602 is provided at the lower part of the rear wall of the rear box 612 of the tank body 610.

The atmosphere opening portion 613 disposed on the top surface of the box body 610 includes an atmosphere opening port 603 that communicates the inside and outside of the box body 610. The atmospheric opening 603 releases the air accumulated in the tank body 610 to the outside, so as to maintain the internal pressure of the tank body 610 at atmospheric pressure at any time. As a result, the inside of the sub-tank 600 can be maintained at atmospheric pressure, and the washing water supply flow path 690 from the downstream of the sub-tank 600 to the suction port 516d of the water pump 516 can also be maintained at atmospheric pressure. Therefore, the water pump 516 can supply the washing water to the nozzle device 800 without being affected by the water pressure fluctuation of the supplied tap water or the like. As a result, the water pump 516 can exert a stable pumping function.

Further, as shown in FIG. 10, the flow path 613b in the water pump 516 communicating with the atmosphere opening port 603 of the atmosphere opening portion 613 has a buffer portion 613a that increases the cross-sectional area of the portion of the flow path 613b. The buffer part 613a temporarily stores the washing water when the washing water is about to flow out of the air opening 603 impulsively with the foam. This prevents the washing water from flowing out from the air opening 603.

Moreover, the inside of the box body 610 also has a partition wall 614. The partition wall 614 divides the inside of the tank body 610 into two tanks of the water inlet tank 615 and the storage tank 616. The tank body 610 is provided with a water inlet 601 near the bottom of the side of the water inlet 615 (front box 611), and a water outlet 602 near the bottom of the rear wall of the storage tank 616 (rear box 612).

That is, the tank body 610 is formed with the partition wall 614 to form the water inlet tank 615 and the storage tank 616. As a result, when the washing water flowing in through the water inlet 601 contains air, the air is released from the upper part of the water inlet 615 through the atmospheric opening 603 to the outside. Therefore, only the washing water without air can flow into the storage tank 616.

Also, above the water inlet 615 of the tank body 610, the side wall of the front box 611 of the tank body 610 protrudes in a substantially horizontal direction (including the horizontal direction), and an upper opening 615a and an atmosphere opening portion 613 interposed between the water inlet 615 are provided Between the barrier 617. The blocking wall 617 has a size that can cover the entire upper opening portion 615a of the water inlet 615.

In addition, the water inlet tank 615 includes a plurality of rectifying ribs 618 inside. The rectifying rib 618 protrudes alternately in a substantially horizontal direction (including the horizontal direction) and is provided on the side wall of the front box 611 and the partition wall 614 of the box body 610.

Next, the flow of wash water in the sub-tank 600 will be described.

The washing water flowing in through the water inlet 601 of the sub-tank 600 first flows into the lower part of the water inlet 615. The inflowing washing water is raised in the water inlet tank 615 by changing the flow direction by the rectifying ribs 618. At this time, when the pressure of the washing water flowing in through the water inlet 601 is high, or the water flow is significantly disturbed due to the large amount of air contained, the rectifying ribs 618 will moderately The water flow is rectified. In addition, the rectifying ribs 618 cause vortices to be generated on the downstream side of the rectifying ribs 618 to separate the air contained in the washing water by the vortices.

The washing water that has risen in the water inlet tank 615 and has separated the air flows into the storage tank 616 across the upper end of the partition wall 614 and is stored. At this time, even if the pressure of the washing water flowing in through the water inlet 601 is high, or the water flow is significantly disturbed due to the large amount of air contained, the washing water can be suppressed by the barrier wall 617 Flow upward (at the side of the atmosphere opening portion 613). That is, the barrier wall 617 can prevent the washing water from directly contacting the atmospheric opening 613 or flowing out of the secondary water tank 600 from the atmospheric opening 603.

As described above, while the washing water flowing in from the water inlet 601 of the sub-tank 600 rises in the water inlet tank 615, the air contained in the washing water is separated by the rectifying ribs 618 and the like. The separated air is released out of the box body 610 through the atmospheric opening 603. Thereby, washing water not containing air can be accumulated in the storage tank 616, and the washing water can be supplied to the heat exchanger 700 from the water outlet 602 of the sub-tank 600.

Furthermore, when air is mixed into the washing water supplied from the sub-tank 600 to the heat exchanger 700, air bubbles are generated inside the heat exchanger 700. As a result, the temperature inside the heat exchanger 700 rises abnormally, which may damage the heat exchanger 700. Therefore, in the sub-tank 600 of this embodiment, the partition wall 614 is provided inside to separate the air from the washing water to prevent the mixing of air. In addition, only the washing water is supplied to the heat exchanger 700. Thereby, damage to the heat exchanger 700 can be effectively prevented.

As shown in FIGS. 10 and 11, the sub-tank 600 includes: A common electrode 621 which is made of stainless steel and becomes a common electrode, and a water level detection sensor 620 composed of a plurality of water level electrodes 622 provided for each water level. In addition, in the present embodiment, although it is shown as an example constituted by one common electrode 621 and two water level electrodes 622, it is not limited to this.

The common electrode 621 is arranged on the inner surface of the lower part of the front wall of the box body 610. The water level electrode 622 is arranged on the inner surface of the rear wall of the tank body 610. In addition, the water level electrode 622 is composed of an upper limit electrode 623 provided on the upper portion and a lower limit electrode 624 provided on the lower portion. The common electrode 621 is arranged at a position lower than the lower limit electrode 624 of the water level electrode 622, and is a position where it is often submerged in washing water under a general use state.

That is, the common electrode 621 and the upper limit electrode 623 and the lower limit electrode 624 as the water level electrode 622 are provided on different surfaces. This can prevent the residual water attached to the inner surface of the tank body 610 from being erroneously detected as accumulated water.

Here, a method of detecting the water level of the washing water by the water level electrode 622 is described below.

First, a DC voltage is applied between the common electrode 621 and the water level electrode 622. Furthermore, whether the water level electrode 622 is submerged in the washing water is detected by the change in voltage. Thereby, the water level of the washing water in the tank body 610 is detected. That is, when the water level of the storage tank 616 rises, the lower limit electrode 624 and the upper limit electrode 623 will be flooded. At this time, the voltage between the common electrode 621 and the lower limit electrode 624 and the upper limit electrode 623 decreases. With this, the control unit 130 detects the level of the washing water from the decrease in the voltage.

In addition, the upper limit electrode 623 of the water level electrode 622 is used to detect the upper limit water level, and the lower limit electrode 624 is used to detect the lower limit water level. Therefore, the upper limit electrode 623 is provided at a position lower than the atmosphere opening 603. This prevents the washing water from flowing out from the air opening 603. In addition, the lower limit electrode 624 is provided above the water outlet 602 flowing to the heat exchanger 700. With this, it is possible to prevent air from flowing into the heat exchanger 700.

As described above, the sub-tank 600 of this embodiment can be constructed.

<4> Composition of heat exchanger

Hereinafter, the configuration of the heat exchanger of the sanitary washing device of this embodiment will be described with reference to FIGS. 12 and 13.

12 is a perspective view showing the appearance of the heat exchanger of the water circuit. Fig. 13 is a cross-sectional view of the heat exchanger.

Furthermore, the heat exchanger 700 of this embodiment is formed integrally with the buffer tank 750, and the buffer tank 750 is provided above the heat exchanger 700.

First, the heat exchanger 700 is formed in a substantially rectangular (including rectangular) flat plate shape when viewed from the front (see FIG. 13 ). The heat exchanger 700 is at least composed of a case 701 made of reinforced ABS resin formed by compounding glass fiber on ABS resin, a plate-shaped heater 702 made of ceramic, a hot water discharge member 703, and the like.

The housing 701 is composed of a front member 710 constituting a front portion and a back member 720 constituting a rear portion. The plate-shaped heater 702 is provided in the space formed between the front member 710 and the back member 720. The heating flow path 715 is formed between the facing portion of the front member 710 and the flat heater 702 and the facing portion of the back member 720 and the flat heater 702 Clearance.

The heat exchanger 700 configured as above will instantly heat the washing water flowing through the heating flow path 715 with the flat plate heater 702 to raise the temperature.

In addition, the heat exchanger 700 is provided with a water inlet 711 as a connection port on the right side of the lower end of the front surface of the front member 710 and a hot water discharge port as a connection port of the hot water discharge member 703 provided on the upper right side surface of the front member 710 712.

In addition, as shown in FIG. 13, the water inlet flow path 713 connected to the water inlet 711 is provided across the substantially full width (including the full width) of the lower end of the housing 701. A plurality of slits 714 are provided on the upper surface of the inlet flow path 713 across the entire width. Furthermore, the wash water that has flowed into the inlet water flow path 713 passes through the slit 714 and then flows into the heating flow path 715. In addition, the slit 714 has a function to allow the washing water to flow in evenly across the full width of the heating channel 715.

In addition, a partition rib 716 is provided at the upper end of the heating flow path 715, and a buffer tank 750 is provided above the partition rib 716. A plurality of water-passing holes 717 are provided on the partition rib 716 across a substantially full width (including the full width). As a result, the washing water heated in the heating channel 715 flows into the buffer tank 750 through the water hole 717.

In addition, protrusions 718 having a substantially semicircular (including semicircular) cross-sectional shape, for example, are provided across the entire width (including the full width) of the buffer tank 750 at intervals. The protrusion 718 disturbs the flow of wash water flowing in the buffer tank 750 toward the hot water discharge port 712. In this way, the washing water can be mixed to eliminate the uneven temperature of the washing water. As a result, the washing water with a uniform temperature can be replaced by hot water The discharge port 712 discharges hot water.

The hot water discharge member 703 is provided with two thermistors of a hot water discharge temperature sensor 730 and an excessive temperature rise sensor 731. The hot water discharge temperature sensor 730 detects the hot water discharge temperature of the washing water. The overheating sensor 731 detects the overheating temperature of the heat exchanger 700. Accordingly, the control unit 130 controls the temperature of the hot washing water discharged from the heat exchanger 700.

As described above, the heat exchanger 700 of this embodiment can be constructed.

<5> Composition of nozzle device

The configuration of the nozzle device of the sanitary washing device in this embodiment will be described below with reference to FIGS. 16 to 28.

16 is a perspective view showing the storage state of the nozzle device in the present embodiment. 17 is a cross-sectional view taken along line 17-17 shown in FIG. Fig. 18 is a longitudinal sectional view showing the storage state of the nozzle device. 19 is a detailed cross-sectional view of part B shown in FIG. 18. 20 is a cross-sectional view taken along line 20-20 shown in FIG. 21 is a cross-sectional view showing the storage state of the nozzle device. 22 is a detailed cross-sectional view of part C shown in FIG. 21. Fig. 23 is a longitudinal sectional view showing a state of washing the buttocks of the nozzle device. 24 is a detailed cross-sectional view of part D shown in FIG. 23. Fig. 25 is a longitudinal cross-sectional view showing the state of washing the genitals of the nozzle device. FIG. 26 is a detailed cross-sectional view of part E shown in FIG. 25. FIG. Fig. 27 is a cross-sectional view of the nozzle portion showing the state of washing the female part of the nozzle device. FIG. 28 is a detailed cross-sectional view of part F shown in FIG. 27. FIG.

As shown in FIG. 16, the nozzle device 800 is at least composed of a support portion 810, a nozzle portion 820, a cleaning nozzle driving portion 860, a fluid regulating valve 517, and the like. The support portion 810 is, for example, POM (polyoxymethylene) The resin material such as ABS or the like is formed in a frame shape that is substantially triangular (including triangles) when viewed from the side. The nozzle portion 820 moves forward and backward along the support portion 810. The cleaning nozzle driving unit 860 drives the nozzle unit 820 to move forward and backward. The fluid regulating valve 517 switches the supply of washing water to the nozzle part 820.

In the following description of the nozzle device 800, the storage direction of the nozzle portion 820 is set to the rear, the entrance and exit direction of the nozzle portion 820 is set to the front, and the right side is set to the right from the rear side to the front, and the left side is set to the left Set to the left to explain the arrangement of each component.

The support portion 810 is a frame composed of an inclined portion 812 which is lowered from the rear toward the front with respect to a substantially horizontal (including horizontal) bottom edge portion 811, and a longitudinal edge portion 813 which joins the bottom edge portion 811 and the rear end of the inclined portion 812状 formed. A guide rail 814 that guides the forward and backward movement of the nozzle portion 820 and a rack guide that guides the flexible rack 861 (refer to FIG. 17) of the cleaning nozzle drive portion 860 are formed on the inclined portion 812 over substantially the entire length (including the entire length) 815 (see FIG. 17). Below the front end of the inclined portion 812, a generally cylindrical holding portion 816 (including a cylindrical shape) supported to surround the nozzle portion 820 is integrally formed.

In addition, as shown in FIG. 16, the guide rail 814 that guides the nozzle portion 820 has a substantially T-shaped cross section (including a T-shaped shape). The rack guide 815 that guides the flexible rack 861 has the following structure in cross-sectional view: it has a substantially U-shape (including a U-shape) with one side open, and restricts the upper and lower surfaces of the flexible rack 861 and Guide on one side.

The rack guide 815 is formed by connecting the inclined portion 812 to the longitudinal side portion 813 and even the bottom side portion 811 of the rear portion of the support portion 810. Corners of the inclined portion 812 and the vertical side portion 813 of the rack guide 815, and the vertical side portion 813 and the bottom side portion 811 It is connected in a circular arc shape, for example. In addition, the cross-sectional shape of the rack guide 815 formed in the vertical side portion 813 and the bottom side portion 811 is also formed in a substantially U-shape (including a U-shape). On the other hand, the side surface of the rack guide 815 is an open left side surface at the inclined portion 812, and a right side surface opened opposite to the vertical side portion 813 and the bottom side portion 811. With this, the sliding resistance can be reduced, and the flexible rack 861 can be guided more surely. Furthermore, the opening surfaces of the longitudinal side portion 813 and the bottom side portion 811 of the rack guide 815 can be closed by, for example, a support portion cover of another member.

The cleaning nozzle driving section 860 is composed of a flexible rack 861 coupled to the nozzle section 820, a pinion 862 engaged with the flexible rack 861, a drive motor 863 that rotationally drives the pinion 862, and the like. The cleaning nozzle driving section 860 moves the nozzle section 820 forward and backward along the guide rail 814.

The driving motor 863 is constituted by, for example, a stepping motor, and the rotation angle is controlled by a pulse signal. Furthermore, by rotating the driving motor 863, the flexible rack 861 is driven through the pinion gear 862.

A gap is provided between the inner peripheral surface of the holding portion 816 of the support portion 810 and the outer peripheral surface of the nozzle portion 820. By this, the washing water sprayed from the nozzle portion 820 flows into the gap to wash the outer peripheral surface of the nozzle portion 820.

In addition, the nozzle cover 801 is freely provided in front of the holding portion 816, and is opened and closed by the advance and retreat of the nozzle portion 820. In addition, the nozzle cover 801 is closed with the nozzle portion 820 stored. This prevents the nozzle part 820 from being contaminated by feces and the like.

A water supply connector 817 is provided on the bottom edge portion 811 of the support portion 810. The water supply connector 817 connects a water supply pipe (not shown) connected to the washing water supply flow path 690, and the support portion 810 separates the washing water Supply to the fluid regulating valve 517 The connecting pipes 802 are connected to each other.

As shown in FIG. 21, the nozzle portion 820 is at least constituted by a rod-shaped nozzle body 830 molded with a resin material such as ABS, a nozzle sleeve 840, a coupling portion 850, and the like. The nozzle sleeve 840 is formed in a cylindrical shape, and covers substantially the entirety (including the entirety) of the nozzle body 830. The connecting portion 850 pulls the nozzle cover 840 by the nozzle body 830.

As shown in FIG. 6, the nozzle body 830 of the nozzle portion 820 includes a buttocks washing nozzle 831 for washing parts, a genital washing nozzle 832 for washing women's parts, a nozzle cleaning part 833 for cleaning the nozzle part 820, and the like.

As shown in FIGS. 23 and 24, the buttocks washing nozzle 831 is a buttocks washing outlet 834 that opens upward at the front end of the nozzle body 830, and a buttocks that communicate with the buttocks washing outlet 834 from the rear end of the nozzle body 830 The cleaning flow path 835 is composed. The buttocks washing flow path 835 is provided on the lower side of the nozzle body 830, and is provided with a bent portion that is bent upwards below the buttocks washing outlet 834. The curved portion is provided with a rectifying plate 835a that rectifies the flow of washing water. Accordingly, the washing water sprayed from the buttocks cleaning spray outlet 834 is sprayed upward through the spray opening 844 of the nozzle sleeve 840.

As shown in FIGS. 25 and 26, the genital washing nozzle 832 is a genital washing nozzle 836 disposed behind the hip washing nozzle 834, and a genital washing nozzle connected to the genital washing nozzle 836 from the rear end of the nozzle body 830 The net flow path 837 is composed. The washing water sprayed from the female body cleaning spray outlet 836 is sprayed upward through the spray opening 844 of the nozzle sleeve 840.

As shown in FIG. 27, the nozzle cleaning part 833 is a nozzle cleaning outlet 838 disposed on the side of the nozzle body 830, and behind the nozzle body 830 The nozzle cleaning flow path 839 is connected to the nozzle cleaning nozzle 838 at the end. The washing water sprayed from the nozzle cleaning spray outlet 838 is sprayed into the inside of the nozzle sleeve 840, and is discharged to the outside of the nozzle sleeve 840 through the drain port 845 of the nozzle sleeve 840. In addition, the washing water sprayed from the nozzle cleaning spray port 838 is used for cleaning the nozzle portion 820 and its surroundings.

In addition, the front of the nozzle portion 820 is supported with the holding portion 816 inserted into the support portion 810. The rear part of the nozzle part 820 is slidably provided in a state where it is suspended from the guide rail 814. The nozzle portion 820 is configured such that the nozzle portion 820 shown in FIG. 16 can be stored in a storage position rearward of the holding portion 816, and the nozzle portion 820 shown in FIG. 23 is a hip washing position where the holding portion 816 protrudes. And advance and retreat between the pudendal washing position shown in Fig. 25.

As shown in FIG. 21, the nozzle cover 840 is composed of a nozzle cover body 841 and a coupling member 842. The nozzle sleeve body 841 is formed by, for example, processing a thin stainless steel plate into a cylindrical shape, and has a front end surface as a closed surface and a rear end surface as an open surface. The coupling member 842 is formed in a substantially cylindrical shape (including a cylindrical shape) molded of a resin material such as ABS, and coupling pieces 843 (see FIG. 22) that are engaged with the nozzle body 830 are provided on both sides.

A nozzle sleeve stopper (not shown) that limits the sliding range of the nozzle sleeve 840 is integrally formed on the right side of the rear end of the coupling member 842. The nozzle sleeve stopper restricts the sliding range of the nozzle sleeve 840 by abutting the stop receiving portion and the rear stop receiving portion (not shown) formed in front of the support portion 810.

A part of the coupling member 842 is fixed in a state where it is inserted into the nozzle sleeve body 841 through the opening at the rear end of the nozzle sleeve body 841 and integrated.

On the upper surface in front of the nozzle sleeve body 841, for example, one ejection opening 844 that can face the buttocks washing outlet 834 and the genital washing outlet 836 of the nozzle body 830 is provided. A drain port 845 is provided on the lower surface in front of the nozzle sleeve body 841 to discharge the washing water flowing out of the nozzle sleeve body 841 to the outside.

Furthermore, the inner diameter of the nozzle sleeve 840 has a size slightly larger than the outer diameter of the nozzle body 830. Thereby, the nozzle body 830 and the nozzle sleeve 840 can slide smoothly with each other in a state where the nozzle body 830 has been inserted into the nozzle sleeve 840.

A fluid regulating valve 517 is provided on the rear end surface of the nozzle body 830. As shown in FIG. 6, the fluid regulating valve 517 is composed of, for example, a disc-shaped valve body 517a and a stepping motor 517b that drives a switching operation. The fluid regulating valve 517 selectively supplies washing water to the buttocks washing flow path 835, the genital washing flow path 837, and the nozzle cleaning flow path 839 by switching.

The outer surface of the valve body 517a of the fluid adjustment valve 517 is provided with a water supply port 517c (see FIG. 16) for supplying washing water to the fluid adjustment valve 517. The water supply port 517c is connected to and communicated with the water supply connector 817 of the support portion 810 through the connection pipe 802.

Next, the connection part 850 which consists of the connection member 842 of the nozzle sleeve 840 and the connection receiving part 851 of the nozzle body 830 in this embodiment is demonstrated using FIGS. 22 and 28. FIG.

As shown in FIGS. 22 and 28, the connection receiving portion 851 is formed on the right side of the outer periphery of the rear end of the nozzle body 830. The connection receiving portion 851 is two front V-shaped (including V-shaped) front concave portions 851a and a rear rear The groove of the concave portion 851b is formed, and is arranged with a gap between the front and back. In addition, the interval between the front concave portion 851a and the rear concave portion 851b is set at the same size as the interval between the buttocks cleansing spray port 834 and the female cleansing spray port 836.

On the other hand, the coupling member 842 of the nozzle sleeve 840 includes a substantially cylindrical (including cylindrical) coupling piece 843 that is molded of a resin material such as ABS or POM and protrudes rearward on both sides of the rear. The connecting piece 843 includes a substantially V-shaped connecting protrusion 843a (including a V-shaped) protruding inward at the rear end portion.

Moreover, after the nozzle body 830 is inserted into the nozzle sleeve 840, the coupling protrusion 843a of the coupling member 842 of the nozzle sleeve 840 is constantly pressed against the coupling receiving portion 851 of the nozzle body 830 by elasticity. At this time, when the coupling protrusion 843a is engaged with either the front recessed portion 851a or the rear recessed portion 851b, the nozzle body 830 and the nozzle sleeve 840 are in a connected state. Thereby, the nozzle sleeve 840 becomes movably pulled by the nozzle body 830.

Furthermore, as shown in FIG. 22, in a state where the connecting protrusion 843a enters the front recessed portion 851a, as shown in FIG. 26, the female body cleaning ejection outlet 836 of the nozzle body 830 faces the ejection opening 844 of the nozzle sleeve 840 status. On the other hand, as shown in FIG. 28, in a state where the coupling protrusion 843a enters the rear recessed portion 851b, as shown in FIGS. 19 and 24, the buttocks washing ejection port 834 and the ejection opening 844 face each other. Thereby, the washing water can be ejected from the predetermined ejection port.

As described above, the nozzle device 800 of this embodiment can be constructed.

<6> Control and action of washing department

Hereinafter, the cleaning of the sanitary washing device in this embodiment will be described Department of control, role and action.

First, the basic operation and operation of the cleaning unit 500 will be described below with reference to FIGS. 6 and 26.

First, the tap water flowing in the water pipe line is supplied as washing water from the water supply connection port 510. Then, when the water stop solenoid valve 514 is opened, the washing water can be supplied to the sub-tank 600. At this time, the flow rate of the wash water flowing in the wash water supply flow path 690 is maintained constant by the constant flow valve 513. Furthermore, the driving of the water stop solenoid valve 514 is controlled by the control unit 130 according to the operation of the remote controller 400 and the operation unit 210.

Next, the washing water sent to the sub-tank 600 is stored in the sub-tank 600, and sent to the heat exchanger 700 and the water pump 516 that constitutes the variable amount of water discharge. Then, the control unit 130 drives the water pump 516 to send the washing water to the nozzle device 800 through the fluid regulating valve 517. Furthermore, the driving of the water pump 516 is controlled by the control unit 130 according to the operation of the remote controller 400 and the operation unit 210.

Next, the control unit 130 energizes the plate heater 702 of the heat exchanger 700 to start the heating of the washing water. At this time, the control unit 130 controls the energization of the flat heater 702 according to the detection information of the inlet water temperature sensor 630 and the hot water discharge temperature sensor 730. That is, the control unit 130 controls the washing water to maintain the temperature set by the warm water temperature switch 231 of the operation unit 210.

Next, the control unit 130 controls the switching of the fluid regulating valve 517 according to the operation information of the operation unit 210 and the remote controller 400. That is, the control unit 130 switches the fluid regulating valve 517 to the buttock washing nozzle of the nozzle device 800 831, any one of the genital washing nozzle 832 and the nozzle cleaning part 833, and supplies washing water. As a result, the washing water is discharged from any one of the buttocks washing spray outlet 834, the genital washing spray outlet 836, and the nozzle cleaning spray outlet 838.

Hereinafter, the control related to the sub-tank 600 of the present embodiment, particularly the water level detection and flow rate detection will be described in detail.

First, the control of the washing unit 500 at the time of initial use of the sanitary washing device 100 of this embodiment will be described using FIG. 29.

FIG. 29 is a time chart of the washing unit at the initial use of the sanitary washing device. In addition, the term “initial use” refers to the case where the sanitary washing device 100 is used for the first time after installation, or the case where it is used again after the drainage operation is performed to prevent freezing, which is equivalent to that the washing section does not store washing water status.

As shown in FIG. 29, at a time point P1, the user operates the washing switch of the operation section 210 or the remote controller 400 (for example, the buttock washing switch 221 or 410). With this, the control unit 130 energizes the water stop solenoid valve 514 and starts the supply of washing water in the sub-tank 600. At the same time, the driving of the water level detection sensor 620 is started. In addition, the driving of the water level detection sensor 620 is to stop washing the buttocks at the time point P14, and then wash after the end, and supply the washing water to the sub-tank 600, and continue the water level detection sensor 620 to the detection Until the upper limit water level.

Next, at the time point P2, when the water level detection sensor 620 detects the upper limit water level, the control unit 130 starts time measurement. Then, at a time point P3 when a predetermined time has elapsed, the energization of the water stop solenoid valve 514 is stopped, and the supply of washing water is stopped.

Furthermore, in this embodiment, after the upper limit water level is detected, After 2 seconds, for example, the power supply stops. The reason is that, at the time point P2 at which the upper limit water level is detected, normally, the sub-tank 600 and the heat exchanger 700 are already full. Here, the supply will continue for another 2 seconds. As a result, the heat exchanger 700 and the water pump 516 are more surely filled with washing water, and the air in the heat exchanger 700 is removed. As a result, it is possible to more reliably prevent the air-burning of the heat exchanger 700 caused by residual air, and to improve safety and durability. At the same time, the washing water can be surely sent to the water pump 516 constituting the variable amount of water discharge to form a full water state. As a result, the water pump 516 in the full water state is activated, and the washing water can be more reliably sent to the nozzle part 820.

Next, the control unit 130 starts driving the water pump 516 at the time point P3 when the energization of the water stop solenoid valve 514 is stopped. At the same time, the fluid regulating valve 517 is driven, and the supply of the washing water to the buttock washing flow path 835 of the nozzle portion 820, for example. At this time, driven by the water pump 516, the water level of the washing water in the sub-tank 600 will decrease, and at the time point P4, the water level detection sensor 620 will release the detection of the upper limit water level. Then, at the time point P4, the control unit 130 starts driving the heat exchanger 700. That is, by detecting the decrease of the water level, the normal operation of the water pump 516 can be confirmed. This can prevent the abnormal temperature rise of the heat exchanger 700 such as air burning.

The washing water supplied to the buttocks washing channel 835 is sprayed from the buttocks washing outlet 834. The sprayed washing water is reflected through the spray opening 844 to the inner surface of the holding portion 816 provided at the front end of the support portion 810. By this, the outer peripheral surface of the nozzle cover 840 is cleaned. In the following, the above cleaning operation is referred to as "pre-washing". Furthermore, the pre-washing is continued after the temperature of the discharged hot water of the heat exchanger 700 reaches 25° C., for example, and continues until the time point P5 after 2 seconds.

Next, after washing before the end of the time point P5, the control unit 130 starts driving of the washing nozzle driving unit 860 of the nozzle device 800. Then, the nozzle part 820 is moved in and out from the storage position to the hip washing position. At this time, the control unit 130 switches the fluid regulating valve 517 while moving from the storage position to the buttocks washing position, and supplies the washing water to the nozzle cleaning flow path 839. The washing water supplied to the nozzle cleaning flow path 839 is sprayed from the nozzle cleaning spray outlet 838 into the nozzle sleeve 840. The sprayed washing water will flow out of the nozzle sleeve 840 to the outside of the nozzle sleeve 840 after washing the inner surface of the nozzle sleeve 840. In the meantime, the nozzle portion 820 can be warmed by the washing water heated by the heat exchanger 700. With this, when the buttocks are washed afterwards, the spray of cold water can be prevented beforehand to suppress the user's discomfort.

Next, the control unit 130 switches the fluid regulating valve 517 to start the supply of washing water to the buttock washing channel 835 at the time point P6 when the nozzle part 820 reaches the buttock washing position. The washing water supplied to the buttocks washing channel 835 is sprayed from the buttocks washing outlet 834. Then, the washing water will wash the part of the user through the spray opening 844. In addition, the buttocks washing will continue until, for example, the time point P11 at which the user stops washing.

At this time, the control unit 130 performs control based on the detection data of the inlet water temperature sensor 630 and the hot water discharge temperature sensor 730 during driving of the heat exchanger 700 so that the temperature of the washing water becomes the set temperature.

Furthermore, when the driving of the water pump 516 is continued from the time point P3, the level of the washing water in the sub-tank 600 will gradually decrease. Then, the control unit 130 will start to energize the water stop solenoid valve 514 and supply the washing water at the time point P7 when the water level detection sensor 620 detects the lower limit water level. Thereafter, control The unit 130 continues to energize the water stop solenoid valve 514 until the time point P8 at which the water level detection sensor 620 detects the upper limit water level.

The control unit 130 will stop energizing the water stop solenoid valve 514 at the time point P8 when the upper limit water level is detected and start time measurement. Then, the elapsed time until the time point P9 at which the next water level detection sensor 620 detects the lower limit water level is measured.

Next, the control unit 130 calculates the measured elapsed time and the amount of water from the upper limit water level to the lower limit water level (for example, 65 cc) at the time point P9 at which the lower limit water level is detected to calculate the flow rate. At the time point P10 when the calculation performed by the flow calculation processing section ends, if the flow rate set according to the cleaning intensity and the discharged flow rate are different, the control section 130 adjusts the output of the water pump 516 to correct the cleaning water Traffic.

Next, at the time point P11 at which the user performs the operation of the washing stop of the operation unit 210 or the remote controller 400, the controller 130 stops the energization of the water pump 516 and the heat exchanger 700. At the same time, the control unit 130 drives the washing nozzle driving unit 860 of the nozzle device 800 so that the nozzle unit 820 is retracted from the buttock washing position to the storage position.

At the time point P12 when the nozzle unit 820 has retracted to the storage position, the control unit 130 stops the drive of the cleaning nozzle drive unit 860. At the same time, the control unit 130 will drive the water pump 516 and the heat exchanger 700 again, and start the "post-cleaning" of cleaning the nozzle unit 820.

Next, at a time point P13 when a predetermined time has passed, the control unit 130 stops driving of the water pump 516 and the heat exchanger 700. With this, the "post-washing" is ended.

Next, at the time point P13 after the cleaning of the nozzle portion 820 has been completed, the control unit 130 re-energizes the water stop solenoid valve 514 to supply the washing water to the sub-tank 600. In addition, at the time point P14 when the water level detection sensor 620 has detected the upper limit water level, the control unit 130 stops the energization of the water stop solenoid valve 514 and ends a series of control of the buttock washing. As a result, the sub-tank 600 will be in the full-water state of the upper limit water level, and the washing unit 500 will be in the standby state.

With the above, it is possible to control the washing portion of the sanitary washing device 100 of the present embodiment at the initial use.

The control of the washing section of the sanitary washing apparatus 100 of the present embodiment during normal use will be described below using FIG. 30.

Fig. 30 is a time chart of the washing section of the sanitary washing device during normal use. In addition, the term "normal use" corresponds to a case where a cleaning operation has been performed on a sanitary cleaning device that has been in a standby state during initial use before.

Here, at the time point P20 when the cleaning operation is performed in the control of the cleaning unit shown in FIG. 30, the sub-tank 600 is full of water, and the control unit 130 has memorized the initial stage of implementation The point of use will be different from the control of the washing section at the time of initial use shown in FIG. 29.

First, as shown in FIG. 30, in the standby state where the sub-tank 600 at the time point P20 is full of water, the user operates the washing switch of the operation section 210 or the remote controller 400 (for example, the hip washing switch 221 or 410) . With this, the control unit 130 energizes the water pump 516 and starts supply of washing water to a predetermined nozzle unit. At the same time, according to the memory data of the control that has implemented the initial operation, Energization of the heat exchanger 700 is started.

At the same time, the "pre-washing" operation of the nozzle device 800 is started. Furthermore, the control unit 130 starts driving the water level detection sensor 620.

That is, in the case of the initial use described in FIG. 29 and the case of the normal use, the control from the time point when the washing operation is performed to the time point when the energization of the heat exchanger 700 starts is different. In addition, the control, action, and operation after the time point P5 at which the driving of the nozzle device 800 is started are the same as those in FIG. 29, and therefore their description is omitted.

As described above, the sanitary washing device of this embodiment detects the change of the water level of the washing water by the water level detection sensor provided in the sub-tank, and calculates the flow rate by calculation. Thereby, there is no need to separately provide a dedicated flow sensor or the like to detect the flow rate in the washing section. As a result, the structure of the washing section can be simplified, and the cost can be reduced.

In addition, the sanitary washing device of the present embodiment corrects the threshold value of the change in the output voltage between the determination electrodes in the water level detection according to the temperature. Thereby, it becomes possible to improve the accuracy of water level detection and flow detection, and to use water with different electrical conductivity as the washing water of the sanitary washing device in a wider range. As a result, the use range and ease of use of the sanitary washing device can be further improved.

In addition, when the sanitary washing device of the present embodiment is used in the initial stage, it will continue to pass water for a predetermined time after detecting the full water state of the sub-tank. At the same time, after the water pump is driven, when the water level detection sensor further detects the elimination of the upper limit water level, the heat exchanger will be energized. By this, it can be judged that the washing water is reliably supplied to the heat exchanger, and as a result, Can prevent the heat exchanger from emptying. Therefore, compared with a structure using a general flow sensor to prevent empty burning, a simple structure can be made. As a result, a sanitary washing device with high safety and reliability can be realized at low cost.

As described above, the control, function, and operation of the washing section of the sanitary washing device in this embodiment can be performed.

<7> The control and action of the spray nozzle on the inner surface of the toilet

Hereinafter, the discharge control, action, and operation of the inner surface of the toilet bowl by the spray nozzle of the sanitary washing device in this embodiment will be described with reference to FIGS. 31 to 34.

Fig. 31 is a perspective view showing the appearance of the spray nozzle of the sanitary washing device. Fig. 32 is a longitudinal sectional view of the spray nozzle. 33 is a plan view showing the installation position of the spray nozzle and the rotation angle of the discharge nozzle of the spray nozzle in the sanitary washing device. FIG. 34 is a graph showing the pump output of the variable water discharge amount in the rotation angle of the discharge outlet of the spray nozzle.

As shown in FIGS. 31 and 32, the dispersion nozzle 550 is composed of a dispersion nozzle driving unit 550a, a main body 550c, a rotating nozzle 550d, and the like. The spray nozzle driving unit 550a is configured by, for example, a motor, and rotatably drives the rotary nozzle 550d. The main body 550c includes an inlet flow path 550b and an inlet hole 550h, and supplies washing foam, washing water, and the like generated by the foam generating portion 560 shown in FIG. 6 to the rotary nozzle 550d. In addition, the main body 550c rotatably holds the rotating nozzle 550d sealed with the O-ring 550e and the O-ring 550f. Furthermore, an X-ring can also be used instead of the O-ring 550f. By this, it can be reduced to rotation Torque required for rotation of nozzle 550d. In addition, it is possible to more reliably prevent the rotation nozzle 550d from being fixed. As a result, a small, low-torque motor can be used for the spray nozzle driving unit 550a.

In addition, the rotary nozzle 550d is rotationally driven by fitting the shaft 550n of the rotary drive body to the spray nozzle driving portion 550a.

As described above, the spray nozzle 550 of the present embodiment can be constructed and operated as follows.

First, the washing water or washing foam generated in the foam generating portion 560 of FIG. 6 is supplied from the inlet flow path 550b of the main body 550c of the spray nozzle 550. The supplied washing water or washing foam is supplied into the rotating nozzle 550d from a plurality of inlet holes 550h of the main body 550c opened around the rotating nozzle 550d. Thereafter, the discharge port 550u of the rotary nozzle 550d is discharged toward the inner surface of the toilet, the buttocks cleaning nozzle 831, and the like.

As shown in FIG. 33, the spray nozzle 550 is arranged on the right side of the center of the body 200. The reason is that the buttock washing nozzle 831 and the like for washing parts of the human body are preferentially arranged in the center. Therefore, the dispersion nozzle 550 is not arranged at the center, but at one of the left and right sides. Furthermore, the above configuration can of course also be set to the opposite.

Next, the discharge control of the washing foam and the like of the spray nozzle 550 will be described with reference to FIG. 6.

Furthermore, the following describes the discharge control of the spray nozzle 550 when the user is not sitting and the toilet seat is closed.

First, when the user enters the toilet, the control unit 130 of the sanitary washing apparatus 100 uses the human body detection sensor 450 to detect the entry of a person into the room. with At this time, the control unit 130 shifts to the operation of toilet foam dispersing, and starts the operation of the water pump 516 constituting the water discharge amount variable unit. In addition, the control unit 130 opens the on-off valve 530a of the branch channel 530.

In this case, the fluid regulating valve 517 for switching the flow path of the buttocks washing nozzle 831, the genital washing nozzle 832, the nozzle cleaning portion 833, etc. is in the closed state. Therefore, the washing water from the heat exchanger 700 passes through the diverging flow path 530, the check valve 531 and the foam tank 532 constituting the foam generating portion 560, and is supplied to the spray nozzle 550. The supplied washing water is discharged from the discharge port 550u of the spray nozzle 550 toward the inner surface of the toilet or the buttock washing nozzle 831.

At this time, the control unit 130 drives the spray nozzle driving unit 550a to rotationally drive the discharge port 550u of the rotary nozzle 550d of the spray nozzle 550. As a result, the washing water or washing foam discharged from the outlet 550u will be distributed over the entire circumference of the inner surface of the toilet and the hip washing nozzle 831 to form a water film or foam film. By this, the adhesion of dirt and the like is prevented beforehand.

Furthermore, as shown in FIG. 33, the distance from the discharge port 550u of the dispersion nozzle 550 to the inner surface of the toilet varies depending on the rotation angle direction of the dispersion nozzle 550.

That is, when the rotation angle of the dispersion nozzle 550 disposed at the above-mentioned position is changed, as shown in FIG. 33, when the rotation angle of the discharge outlet 550u of the dispersion nozzle 550 is 160°, from the discharge outlet 550u to the toilet The distance to the inner surface will become the longest (farthest). On the other hand, when the rotation angle of the discharge port 550u is 340° (equivalent to the position rotated by 180° from the above 160°), the distance from the discharge port 550u to the inner surface of the toilet becomes the shortest (near).

Therefore, as shown in FIG. 34, the control unit 130 controls the rotation angle of the water discharge port 550u of the spray nozzle 550 to change the output of the water pump 516 constituting the variable water discharge amount.

Hereinafter, a method of controlling the output of the water pump 516 according to the rotation angle of the spray nozzle 550 will be described.

First, the control unit 130 starts the above control when the human body detection sensor 450 detects that the user enters the toilet.

Secondly, the control unit 130 causes the output of the water pump 516 constituting the variable water discharge amount portion to change while discharging in the range of "high" to "low" as shown in FIG. 34 according to the rotation angle of the discharge outlet 550u of the spray nozzle 550 Wash foam, etc.

Specifically, the control unit 130 sets the output of the water pump 516 to be larger (higher) in the vicinity of the rotation angle of 160° which is the longest (distant) distance to the inner surface of the toilet shown in FIG. 33. On the other hand, the control unit 130 sets the output of the water pump 516 to be smaller (lower) at a rotation angle of 340° which is the shortest (near) distance to the inner surface of the toilet.

That is, the control unit 130 controls the discharge amount (and discharge speed) of the washing foam and washing water from the discharge port 550u according to the rotation angle of the spray nozzle 550 (that is, the distance between the discharge port 550u and the inner surface of the toilet) .

More specifically, when spitting the washing foam and washing water in front of the toilet that is furthest away from the discharge port 550u of the dispersing nozzle 550, the output of the water pump 516 is set to "high" and the strongest Try to spit out the washing foam and washing water. With this, the washing foam and washing water can be sufficiently delivered to the inner surface in front of the toilet.

On the other hand, when spitting washing foam and washing water behind the toilet closest to the outlet 550u of the spray nozzle 550, the output of the water pump 516 is set to "low" and spitting out with the weakest force Wash foam and wash water. In this way, it is possible to prevent the occurrence of undesirable conditions such as washing foam and rebound of washing water.

In addition, before use, spitting out washing water or washing foam on the entire inner surface of the toilet to form a water film or a foam film, whereby the adhesion of dirt during use can be suppressed when it does not occur.

In addition, in this embodiment, when the human body detection sensor 450 detects that the user enters the toilet, or when the user operates the dispersion switch 417 through the operation unit 210 or the remote controller 400, the washing is scattered on the inner surface of the toilet foam. At this time, as shown in FIG. 34, the control unit 130 causes the output of the water pump 516 constituting the water discharge amount variable unit to change while spreading the washing foam on the inner surface of the toilet. Specifically, the control unit 130 first rotates the spray nozzle driving unit 550a forward (for example, clockwise), and disperses the washing while moving the direction of the spray nozzle outlet 550u from the back of the toilet through the front of the toilet to the back of the toilet Net bubble. In addition, the control unit 130 also rotates the spray nozzle driving unit 550a counterclockwise (for example, in a counterclockwise direction) so as to disperse the washing while moving the direction of the discharge port 550u of the spray nozzle 550 from the rear of the toilet through the front of the toilet and back to the rear foam. That is, the discharge port 550u of the dispersing nozzle 550 is moved in the forward and reverse directions across the inner circumferential surface of the toilet, and the washing foam is dispersed by at least one back and forth rotating action.

By this, the output of the variable amount of water discharge can be controlled so that the washing foam is delivered near the rim 110a of the toilet 110 to spread the washing foam on The entire inner surface of the toilet 110 (including the entire week). As a result, a foam film can be formed on the inner surface from the front to the back of the toilet to suppress the adhesion of dirt.

Furthermore, in this case, as shown in FIG. 34, the control unit 130 may also control the output of the variable amount of discharge water during normal rotation of the spray nozzle driving unit 550a to be controlled to rotate inversely than the reverse rotation of the spray nozzle driving unit 550a. When the output is lower to spit out the washing foam. At this time, as shown in the dotted line of FIG. 33, the trajectory of the spread of the washing foam TF is generally, when it is rotating (clockwise), the washing foam will be scattered in the direction of the outlet 550u of the spray nozzle. The edge 110a of the toilet 110 is closer to the inner side of the draught surface 110b. On the other hand, in the reverse rotation (counterclockwise direction), as shown by the trajectory TR of the spread shown by the broken line in FIG. 33, the washing foam is spread in a direction close to the toilet 110 in the direction of the discharge outlet 550u of the spray nozzle The side of the edge 110a.

This makes it possible to cover the draught surface 110b at the upper part of the discharge port 115 of the toilet 110 with the cleaning foam at the beginning (when it is rotating) of the spread of the cleaning foam. Thereafter, when rotating in the reverse direction, the washing foam can be spread almost all around the inner surface of the toilet 110 near the edge 110a. As a result, a foam film can be formed on the inner surface from the front to the back of the toilet, and the adhesion of dirt can be effectively suppressed.

Moreover, in this embodiment, as shown in FIG. 2, the spray nozzle 550 is placed at a position in front of the body 200 that is placed and fixedly installed on the toilet 110. That is, the spray nozzle 550 is provided on the front side of the front end position where the nozzle device 800 has been stored. The nozzle device 800 allows the washing nozzle to protrude from the storage position to the hip washing or genital washing position for washing Net human body. Therefore, during rotational driving, the direction of the outlet 550u of the spray nozzle can be directed toward the rear of the toilet 110 to spread the washing foam. With this, you can easily The inner surface of the device 110 from the front to the rear forms a foam film of washing foam and suppresses the adhesion of dirt.

In the above description, the normal rotation is viewed from above in FIG. 33, and the clockwise rotation is set to the positive rotation, and the counterclockwise rotation is set to the reverse rotation. However, it is not limited to this. For example, the forward rotation may be counterclockwise, and the reverse rotation may be clockwise. That is, when dispersing the washing foam, the direction in which the discharge port 550u of the dispersing nozzle starts to rotate is called forward rotation, and the direction of return is called reverse rotation, which is not intended to limit the direction of rotation.

As described above, the control unit 130 changes the output of the water pump 516 according to the rotation angle of the discharge port 550u of the dispersion nozzle 550. Thereby, the washing water or washing foam can be discharged to the front, side, and rear of the toilet inner surfaces with different distances in a sure manner. As a result, a water film or a foam film can be formed in a wider range on the inner surface of the toilet to suppress the adhesion of dirt.

In addition, in the above-mentioned embodiment, the configuration in which "high" and "low" are set based on the average level "medium" of the output of the water pump 516 is used as an example for description, but it is not limited to this. For example, it may be configured to set the average level "medium" of the output of the water pump 516 higher or lower to change the reference level. At this time, it is preferable to provide a level switching switch for adjusting the average level on the operation unit 210 or the remote controller 400. Thereby, even when the size of the toilet 110 in which the sanitary washing apparatus 100 is installed is different, the washing water or washing foam can be discharged to the entire circumference of the inner surface of the toilet. In addition, the height position (relative to the horizontal plane) of the washing foam scattered on the inner surface of the toilet 110 may be arbitrarily changed. As a result, the toilet can be more reliably A water film or a foam film is formed on the entire inner surface to suppress the adhesion of dirt.

In the above embodiment, the control unit 130 is described as an example of discharge control that changes the output of the water pump 516 according to the rotation angle of the discharge outlet 550u of the spray nozzle 550, but it is not limited to this. For example, in addition to the change in the output of the water pump 516, the control unit 130 may control the rotation speed of the spray nozzle driving unit 550a to change according to the rotation angle of the discharge port 550u of the spray nozzle 550.

That is, in the present embodiment, the output of the water pump 516 is changed, and the discharge force of the washing water or washing foam is changed. In this way, the washing water or washing foam is surely spread to the inner surface of the farther toilet, and effectively suppresses the rebound on the inner surface of the closer toilet.

However, when the discharge port 550u of the spray nozzle 550 is rotated at a fixed rotation speed, the spread density of the washing foam and washing water becomes sparse at a distance from the inner surface of the toilet. On the other hand, when the distance to the inner surface of the toilet is far away, the spread density of the washing foam and washing water becomes denser.

Therefore, in the present embodiment, as described above, the rotation speed of the dispersion nozzle 550 is also changed by the dispersion nozzle driving portion 550a in accordance with the rotation angle of the discharge port 550u. In this way, the spread density of the washing water or washing foam can be more uniform for the entire circumference of the inner surface of the toilet.

Furthermore, even when the output of the water pump 516 is changed to spread the washing foam and washing water, the spread density of the washing foam and washing water can be made equal to some extent.

However, when the rotation angle of the nozzle 550 is dispersed, the dispersion When the rotation speed of the cloth nozzle driving portion 550a is changed to spread the washing foam and washing water, the spreading density can be made more uniform. In other words, the washing foam and washing water can be discharged from the discharge outlet 550u of the dispersing nozzle 550, and can be distributed at a more evenly distributed density across the entire circumference of the inner surface of the toilet.

That is, when the rotation speed is fixed, as shown in FIG. 33, the washing water or washing spread around the rotation angle of 160° (that is, in front of the toilet), which is the farthest distance from the discharge port 550u of the spray nozzle 550 Net foam disperses and sparsely spreads the density. Therefore, when the washing foam and washing water are discharged toward the front of the toilet, the rotation speed of the spray nozzle 550 is set to the slowest. As a result, the time for the discharge port 550u of the dispersion nozzle 550 to pass near the front of the toilet is increased to increase the dispersion density.

On the other hand, the washing foam or washing water discharged near the rotation angle 340° (that is, even behind the device), which is the distance closest to the discharge port 550u of the spray nozzle 550, gathers and the spray density becomes dense. Therefore, the rotation speed of the dispersion nozzle 550 is set to the fastest. As a result, the time for the discharge port 550u of the spray nozzle 550 to pass near the rear of the toilet is shortened, and the spray density is reduced.

As a result, regardless of the rotation speed, the distribution of the washing water or washing foam scattered toward the inner surface of the toilet can be equalized (shading). Therefore, the adhesion of dirt can be more effectively suppressed across the entire circumference of the inner surface of the toilet.

As described above, the control unit 130 changes the rotation speed of the spray nozzle driving unit 550a according to the rotation angle of the discharge port 550u of the spray nozzle 550. For example, when the outlet 550u of the spray nozzle 550 is directed toward the toilet When the rotation distance of the toilet in front of the toilet is long, the rotation speed of the spray nozzle driving portion 550a is set to be small (low speed). On the other hand, when the direction of the discharge port 550u is the rotation angle toward the rear of the toilet with a short distance to the inner surface of the toilet, the rotation speed of the spray nozzle driving section 550a is set to be large (high speed).

With this, the front, side, and rear of toilets with different distances can spit out the washing water or washing foam equally without unevenness of the distribution density. As a result, by uniformly forming the water film or the foam film on the inner surface of the toilet, the adhesion of dirt can be more effectively suppressed.

Here, in the present embodiment, the control unit 130 is controlled to spray washing water or washing foam toward the inner surface of the toilet from the spray nozzle 550 in advance when the human detection sensor 450 detects the entry of a person. Specifically, the control unit 130 controls the spray nozzle driving unit 550a to rotate the rotary nozzle 550d back and forth, for example, at least once when spraying washing foam or the like on the toilet, and automatically stops after spraying the foam. In this way, before the user uses the sanitary washing device, a water film or a foam film can be formed on the inner surface of the toilet. As a result, the adhesion of dirt to the inner surface of the toilet bowl during use can be effectively suppressed.

Furthermore, in the above description, the example in which the spray nozzle 550 is rotated back and forth to spread the washing foam and washing water before use is described, but it is not limited to this. For example, the number of times may be any number as long as the washing foam and washing water that have been dispersed can sufficiently spread over the inner surface of the toilet. At this time, the number of times that the washing foam is spread on the inner surface of the toilet can be selected and set by the user through the operation unit 210 or the remote controller 400.

Moreover, in the above-mentioned embodiment, the rotation direction of the spray nozzle 550, It is not specifically mentioned that, as shown in FIG. 34, the rotating nozzle 550d is configured to rotate back and forth once. The reason is that, in the case where the rotating nozzle 550d of the dispersion nozzle 550 is rotated only in one of the right direction or the left direction, the direction of the dispersion of the washing water or the washing foam is often Become the same direction. Therefore, by spreading back and forth as in the present embodiment, the washing foam and washing water can be spread to the inner surface of the toilet from two directions of forward and reverse rotation. This can further reduce the occurrence of so-called scattered missing parts. Therefore, it becomes possible to spread the washing foam and washing water more uniformly over the inner surface of the toilet. As a result, the adhesion of dirt can be suppressed with a small number of spreading times (time). Furthermore, the above-mentioned back-and-forth rotation is not limited to one back-and-forth rotation, and of course it may be set to a plurality of times such as two back-and-forth rotations or three back-and-forth rotations.

Specifically, as shown in FIG. 34, first, the rotating nozzle 550d of the dispersion nozzle 550 is positively rotated (for example, clockwise) from a rotation angle of 0° to a rotation angle corresponding to the front side of the toilet to a rotation angle of 340°. stop. Thereafter, the rotating nozzle 550d is rotated counterclockwise (for example, counterclockwise) from a rotation angle of 340° to a rotation angle of 0°, and is stopped after rotating back and forth.

In this case, for example, a mechanical stopper (that is, a rotation restricting portion) (not shown) that limits the rotatable range of the rotating nozzle 550d of the dispersion nozzle 550 to a rotation angle of 0° to a rotation angle of 340° may be provided.

Specifically, the rotation restricting portion is composed of, for example, a protrusion formed on a part of the outer periphery of the rotating nozzle 550d and a rotation restricting wall of the main body 550c. With this configuration, when the protrusion rotates to physically contact the rotation restricting wall, the movement of the rotating nozzle 550d to be rotated is restricted. That is, construct The motor of the spray nozzle driving portion 550a will slip and spin by contact. As a result, the rotating nozzle 550d is configured to be unable to rotate beyond the rotatable range.

As described above, the dispersion nozzle 550 configured as described above is provided with a rotation restricting portion for restricting the rotation range, and the dispersion nozzle 550 is rotated back and forth within a rotatable range not restricted by the rotation restriction portion. Moreover, the washing foam and washing water are scattered on the inner surface of the toilet from the opposite direction (that is, the two directions of forward and reverse). This reduces the occurrence of so-called scattered missing parts. Therefore, it becomes possible to spread the washing foam and washing water more uniformly over the inner surface of the toilet. As a result, the adhesion of dirt can be suppressed with a small number of spreading times (time).

In addition, the spreading nozzle 550 configured as described above can be used at any time as the origin of the rotating position of the spreading nozzle driving section 550a at the position where the projection of the rotating nozzle 550d driven by the motor constituting the spreading nozzle driving section 550a abuts the rotation restricting section It is recognized. That is, there is no deviation of the origin caused by the reciprocating motion of the rotating nozzle 550d of the dispersing nozzle 550. Thereby, the position accuracy with respect to the rotation angle of the toilet inner surface can be improved. Therefore, it is possible to reduce the unevenness of positional deviation with respect to the predetermined position on the inner surface of the toilet. As a result, it is possible to distribute the washing foam and washing water from the outlet 550u of the dispersing nozzle 550 at an appropriate discharge output and rotation speed at the correct rotation angle position on the inner surface of the toilet.

In addition, in the above, although the structure which physically restricts the rotation range of the dispersion nozzle 550 is described, it is not limited to this. When the positional deviation of the origin of the spray nozzle 550 does not pose a problem, it can also simply The forward and reverse rotation of the spray nozzle 550 is performed by the spray nozzle drive unit 550a. As a result, the rotation restricting portion becomes unnecessary, and various operations such as forward and reverse rotation or unidirectional rotation become possible. As a result, it is possible to realize a more appropriate operation in response to the situation such as dirt on the inner surface of the toilet. At this time, it is desirable to set the return rotation angle around 160° and gradually decrease the rotation speed in the vicinity. This can reduce the load applied when the spray nozzle driving section 550a returns abruptly.

Hereinafter, the configuration of the foam generating portion 560 of the sanitary washing device of this embodiment will be described.

The bubble generating portion 560, using FIG. 6, is connected to the wash water supply flow path 690 between the water pump 516 constituting the variable water discharge amount portion and the fluid regulating valve 517 through the on-off valve 530a as described above Divergence channel 530. Then, by opening and closing the on-off valve 530a, the washing water is supplied to the foam generating portion 560 through the branch flow path 530.

The foam generating portion 560 is composed of a check valve 531, a foam tank 532, a detergent tank 533, a detergent pump 534, an air pump 535, and the like. The foam box 532 is connected to the branch flow path 530 through the check valve 531.

A spray nozzle 550 as described above is connected downstream of the foam box 532. The foam tank 532 is connected to the lotion tank 533 supplying the lotion through the lotion pump 534.

The foam box 532 is also connected to the air pump 535. The air pump 535 will send air into the foam box 532 to generate washing foam and the like. Furthermore, the air pump 535 supplies the washing water and the generated washing foam to the spray nozzle 550.

As above, the foam generating portion 560 can be constituted, and as follows Take action.

First, the control unit 130 opens the on-off valve 530a. Then, the control unit 130 drives the water pump 516, and the washing water is transferred to the foam tank 532 of the foam generating unit 560 by the heat exchanger 700.

At this time, in the foam tank 532, the detergent supplied by the detergent tank 533 by the detergent pump 534 and the washing water supplied by the heat exchanger 700 are mixed.

Secondly, the control unit 130 drives the air pump 535 to supply air into the foam box 532. As a result, washing foam is generated in the foam tank 532. The generated washing foam is supplied to the spray nozzle 550, and is discharged to the inner surface of the toilet through the discharge port 550u of the rotary nozzle 550d.

At this time, in accordance with the increase and decrease of the output of the water pump 516 and the air pump 535, the amount and the force (the discharge speed and discharge pressure) of the washing water or washing foam discharged from the spray nozzle 550 are increased or decreased ). With this, as described with reference to FIG. 34, the washing foam and washing water can be evenly distributed on the inner surface of the toilet. That is, the air pump 535 of the foam generating unit 560 also functions as a variable amount of water discharge in the same way as the water pump 516.

In addition, in the above, although the structure in which the on-off valve 530a is provided in the branch flow path 530 is described as an example, it is not limited to this. For example, a configuration in which a flow path switching valve is provided at a branch portion of the branch flow path 530 and the washing water supply flow path 690 may be adopted.

That is, the foam generating portion 560 of this embodiment includes the foam tank 532 between the switching valve 530a and the spray nozzle 550. The foam tank 532 is supplied with detergent from the detergent tank 533 and generates washing foam. With generated washing foam The spray nozzle 550 disperses the discharge port 550u toward the inner surface of the toilet.

Thereby, not only the water film formed by the spread of water or warm water but also the foam film containing the washing foam of the detergent on the inner surface of the toilet. As a result, the adhesion of dirt can be more effectively suppressed by washing the foam.

In addition, the cleaning foam containing lotion can effectively suppress the odor generated by dirt and the like. In addition, the washing foam can give the user a visually clean impression. As a result, user comfort is further enhanced.

In addition, in the above-mentioned embodiment, although the human body detection sensor 450 detects the entry of a person, the structure of dispersing the washing water or washing foam on the inner surface of the toilet is taken as an example for description, but it is not Limited to this. For example, a configuration may be implemented in which the distribution switch 417 provided in the operation unit 210 or the remote controller 400 is operated by a person to perform distribution. With this, even when a toilet as a sanitary washing device is not used, when the dirt on the inner surface of the toilet is concerned, the cleaning foam or the like containing detergent can be spread on the inner surface of the toilet to remove the dirt. Furthermore, it is possible to prevent stubborn dirt that has dried out from adhering to the draught surface 110b or the like. That is, by the user operating the dispersion switch 417, a foam film containing the cleaning foam of the lotion can be formed on the inner surface of the toilet at any time. As a result, the inner surface of the toilet can be kept clean.

In addition, in the above-mentioned embodiment, the user may also use the operation unit 210 or the dispersion selection switch (not shown) of the remote controller 400 to select one of the washing water and the washing foam on the inner surface of the toilet arbitrarily. Composition. Thereby, it can be arbitrarily selected according to the state of contamination of the inner surface of the toilet, the generation of odor, and the like. As a result, unnecessary use of lotion can be suppressed, and cost performance and the like can be improved.

In addition, in the above-mentioned embodiment, when the washing foam is spread on the inner surface of the toilet, the control unit 130 may be configured as follows: according to the rotation angle of the spray outlet 550u of the spray nozzle 550, the water described in FIG. 34 is used. The output of the pump 516 similarly changes the output of the air pump 535. That is, the air pump 535 may be used as a variable amount of water discharge. Thereby, the washing foam or washing water can be spitted out efficiently in front, side, and rear of the inner surface of the toilet with different distances. As a result, a foam film or a water film can be formed up to the inner surface in front of the toilet, and the adhesion of dirt can be suppressed.

Specifically, in the same way as described in FIG. 34, the distance from the discharge port 550u of the dispersing nozzle 550 to the inner surface of the toilet is the longest (far) at a rotation angle of 160°, and the control unit 130 pumps the air The output (air pressure) of 535 is set to be larger (higher). In this way, the air pressure of the air pump 535 can be increased to strengthen the force of flying the washing foam and washing water to the far end from the discharge port 550u of the dispersing nozzle 550.

On the other hand, the output (air pressure) of the air pump 535 is set to be smaller (lower) at a rotation angle of 340° which is the shortest (near) from the discharge port 550u to the inner surface of the toilet bowl, thereby, The air pressure of air pump 535 can be reduced to weaken the force of washing foam and washing water flying out. That is, the air pressure discharged by the air pump 535 is adjusted according to the distance from the discharge port 550u of the spray nozzle 550 to the inner surface of the toilet. As a result, the washing foam and washing water can be spit out uniformly on the inner surface of the toilet without any omission.

In addition, in the above-described embodiment, a dirt detection unit (not shown) that further detects dirt of the toilet with an imaging element such as a CCD (Charge Coupled Device) may be configured. at this time, Based on the detection result of the dirt detection unit, the control unit 130 distributes the washing foam and washing water in a concentrated manner from the spray nozzle 550 back and forth in the part where the dirt remains. By this, the attached dirt can be effectively suppressed and removed. Furthermore, in addition to the method of going back and forth only in the dirt portion, the rotation speed of the discharge port 550u passing through the dust nozzle 550 of the dirt portion may be driven to rotate at a lower speed. Furthermore, when passing the dirt part, the output of the water pump 516 and the air pump 535 can be increased more. This can achieve the same effect.

As described above, the sanitary washing device of the present embodiment includes: the toilet seat 300 which is freely lifted upside down and installed in the toilet 110, the body 200 which supports the toilet seat to be freely lifted upside down, the heat exchanger 700 which heats the washing water, and the washing The washing nozzle 831 of the human body, the foam generating portion 560 that generates washing foam, and the spray nozzle 550 that spits washing water or washing foam onto the inner surface of the toilet. Furthermore, it is provided with a variable amount of water discharge 516 for changing the flow rate of the washing water or washing foam sent to the spray nozzle, and a spray nozzle driving portion 550a that rotationally drives the discharge port 550u of the spray nozzle in a predetermined direction. The on-off valve 530a, the control unit 130, and the operation unit 210 turn on and off the divergent flow path to the spray nozzle. Further, the control unit 130 has a configuration for controlling the spray nozzle 550 so that the spray nozzle 550 sprays washing water or washing foam on a plurality of surrounding areas having different heights of the inner surface of the toilet.

As a result, when the washing foam is spread by the spray nozzle 550 to the toilet 110, the control unit 130 can, as shown in FIG. 33, in a region where the height of the inner surface of the toilet 110 is higher and almost lower than the region Spread throughout the week. As a result, it can span the surrounding area from the front to the back of the inner surface of the toilet 110. Forms a foam film to inhibit the adhesion of dirt.

In the above, the example of the control, action, and operation of discharging the washing foam toward the inner surface of the toilet by the spray nozzle in the non-seating state and in the closed state of the toilet is described.

That is, the control unit 130 rotates the nozzle 550 in the direction of the discharge port 550u in a wide rotation angle range. At this time, the control unit 130 controls the output of the water pump 516 that constitutes the variable water discharge amount with an output from "low" to "high" to spit out the washing foam toward the entire circumference of the inner surface of the toilet. As a result, the washing foam can be discharged in a wide range of the inner surface of the toilet. As a result, a foam film can be formed on a wide range of the inner surface of the toilet to effectively suppress the adhesion of dirt.

Furthermore, controlling the above-mentioned water pump 516 with a "high" output means that, compared to the output of the water pump 516 in the operating conditions described in the items <8> and <9> described below, the The output is relatively high.

<8> Discharging control, action and action of the inner surface of the toilet bowl by the spray nozzle in the seated state

Hereinafter, the discharge control of the dispersion nozzle 550 when the dispersion switch 417 is operated while the user is seated on the toilet seat 300 will be described using FIGS. 35A and 35B.

Fig. 35A is an explanatory diagram showing the pump output during the discharge operation of the spray nozzle toward the inner surface of the toilet. FIG. 35B is an explanatory view showing the discharge direction of the spray nozzle toward the inner surface of the toilet.

At this time, the toilet seat opening and closing detection unit 331 will detect the toilet seat closing state, and the seating detection unit 330 will detect the seating state.

In the above state, the user can press the operation unit 210 or the spreading switch 417 of the remote controller 400.

As a result, as shown in FIG. 35B, first, the control unit 130 drives the spray nozzle driving unit 550a until the direction of the discharge port 550u of the spray nozzle 550 is toward the rear of the toilet. Then, the driving of the spray nozzle 550 is stopped. In addition, in the case of this embodiment, the back of the toilet corresponds to a position where the rotation angle of the discharge port 550u is, for example, around 100° as shown in FIG. 35A (see FIG. 33). In addition, it is not limited to the above-mentioned rotation angle, as long as it is within a range of about 100° to 240° in the counterclockwise direction.

Next, the output of the water pump 516 or the air pump 535 constituting the variable amount of discharge water is controlled with a "low" output. Then, in the direction indicated by the arrow in FIG. 35B, the spray nozzle 550 spits out the washing foam near the back of the toilet for a predetermined time. In this embodiment, the predetermined time is set to, for example, 8 seconds.

That is, under the above conditions, the washing foam will be discharged to a position behind the toilet with a weak force ("low" output). Therefore, there is no doubt that the spitting washing foam will splash toward the user who is sitting on the toilet seat 300. Further, the washing foam scattered behind the toilet will cover the draught surface 110b in the toilet. With this, it is possible to suppress the spread of odor accompanying excretion and the adhesion of dirt on the inner surface of the toilet.

In addition, the washing foam covering the draught surface 110b in the toilet will serve as a buffer when the user's stool or urine discharged from the seated state falls to the draught surface 110b. As a result, the cushioning effect of the washing foam can be In order to suppress the rebound around the toilet or the user.

According to the operation of the spray nozzle 550 described above, when the user is seated and the toilet seat is closed, the control unit 130 drives the spray nozzle drive unit 550a to the discharge port of the spray nozzle 550 when a foam dispersing signal is input through the spray switch 417 The direction of 550u is towards the position behind the toilet and stops. Thereafter, the water pump 516 and the air pump 535 are controlled with a "low" output, and the washing foam is spit out toward the back of the toilet.

That is, when the user is seated on the toilet seat 300, the user will spit out the washing foam toward the rear of the inner surface of the toilet with a weak force. Thereby, there is no case where the washing foam splashes toward the user, and the draught surface 110b of the discharge port 115 can be covered with the washing foam. As a result, the spread of odor during excretion and the adhesion of dirt on the inner surface of the toilet can be suppressed.

<9> Discharge control, action and action by the spray nozzle when the toilet seat is open and not seated

Hereinafter, using FIGS. 36A and 36B, when a user is urinating, the user does not sit on the toilet seat 300, and the toilet seat 300 is opened almost vertically. The discharge control will be described.

36A is an explanatory diagram showing the pump output during the discharge operation of the spray nozzle toward the inner surface of the toilet. 36B is an explanatory view showing the discharge direction of the spray nozzle toward the inner surface of the toilet.

At this time, since the user is in a standing posture, the toilet seat 300 is in an opened state. That is, the toilet seat switch detection unit 331 detects the toilet seat open state, and the seating detection unit 330 detects the non-seating state.

In the above state, the user can press the operation unit 210 or the dispersing switch 417 of the remote controller 400.

As a result, as shown in FIG. 36B, first, the control unit 130 drives the spray nozzle driving unit 550a until the direction of the discharge port 550u of the spray nozzle 550 is toward the discharge port 115 of the toilet. Then, the driving of the spray nozzle 550 is stopped. In the case of this embodiment, the rotation angle of the discharge port 550u shown in FIG. 36A is, for example, around 150° (see FIG. 33) to stop it. Thereby, the direction of the discharge port 550u will be toward the discharge port 115 of the toilet.

Next, as shown in FIG. 36A, the control unit 130 controls the discharge output of the water pump 516 or the air pump 535, which constitutes the variable discharge amount unit, to approximately "medium" output. Then, in the direction indicated by the arrow in FIG. 36B, the spray nozzle 550 discharges the washing foam toward the discharge port 115 of the toilet 110 for a predetermined time. In this embodiment, the predetermined time is set to, for example, 8 seconds. As a result, the discharged washing foam will be in a state of covering the water surface above the discharge port 115 (that is, the so-called draft surface 110b). In addition, the above-mentioned "about" output means, in the case of this embodiment, the output that can directly reach the discharge port 115 of the toilet.

That is, under the above-mentioned conditions, the control unit 130 controls the water pump 516 constituting the water discharge amount variable unit to discharge washing foam and the like with an output of approximately "medium". In addition, the washing foam is discharged to the vicinity of the draught surface 110b at the upper part of the discharge port 115 in advance, and the draught surface 110b is quickly covered with the washing foam. With this, it is possible to suppress the spread of odor accompanying excretion of urine and the like and the adhesion of dirt near the draught surface 110b of the toilet 110.

In addition, when the excreted urine falls near the draught surface 110b, the washing foam covering the draught surface 110b serves as a buffer. As a result, due to the cushioning effect of the washing foam, the rebound around the toilet 110 can be suppressed.

In addition, although FIGS. 36A and 36B show that the washing foam is discharged toward a point near the center of the discharge port 115 of the toilet 110, it is not limited to this. For example, the cleaning foam may be discharged by directing the direction of the discharge port 550u of the spray nozzle 550 toward the draft surface 110b of the discharge port 115. At this time, the position where the washing foam is spread may be any of the front side, the center, the rear side, or the left and right of the toilet near the draft surface 110b of the discharge port 115. That is, the washing foam is spread over the approximate range (including the range) of the draft surface 110b of the discharge port 115. Thereby, the washing foam can be spread on the draught surface 110b within a few seconds after starting to spit out. As a result, the adhesion of dirt near the draught surface 110b of the toilet 110 can be more reliably suppressed.

At this time, it is not necessary to discharge the washing foam in a state where the rotation angle of the discharge port 550u is stopped. For example, the spray nozzle 550 may spread the washing foam while moving back and forth in a narrow range near the draft surface 110b of the discharge port 115. In addition, the discharge output of the water pump 516 or the air pump 535 may be changed, and the washing foam may be discharged. Thereby, the draught surface 110b of the discharge port 115 can be covered with washing foam more efficiently.

According to the operation of the above-mentioned dispersing nozzle 550, when the user is not seated and the toilet seat is open, when the foam dispersing signal is input through the dispersing switch 417, the distributing nozzle driving unit 550a is driven to the outlet of the dispersing nozzle 550 Stop after the direction of 550u is toward the outlet of the toilet only. Thereafter, the water pump 516 and the air pump 535 are controlled with an output of approximately "medium", and the washing foam is discharged toward the draught surface 110b of the discharge port 115 of the toilet 110.

That is, when the user does not sit on the toilet seat 300 and the toilet seat is in the open state, the dispersion switch 417 is operated, and the washing foam is discharged toward the draught surface 110b of the discharge port 115 of the toilet bowl 110 with a force of approximately "medium". Thereby, the draught surface 110b at the upper part of the discharge port 115 of the toilet 110 can be covered with washing foam. As a result, the spread of odor during urination and the adhesion of dirt near the draught surface 110b of the toilet 110 can be suppressed.

As described above, the sanitary washing device of the present embodiment is such that the control unit 130 adjusts the direction of the discharge outlet 550u of the spray nozzle 550 and the variable amount of water discharge in response to the seated state of the toilet seat 300 and the open and closed state of the toilet seat The output of the water pump 516 changes. This makes it possible to use the spray nozzle 550 for discharging the washing foam in accordance with the scene where the sanitary washing device 100 is used. As a result, it becomes possible to control the scene with an appropriate amount of foam, and the amount of lotion used can be saved.

Furthermore, in the present embodiment, although the configuration using the motor as the dispersion nozzle driving portion 550a has been described as an example, it is not limited to this. For example, the spray nozzle 550 may be rotated by the reaction when the washing foam is discharged from the discharge port 550u of the spray nozzle 550. With this, the configuration can be simplified, and power consumption can be suppressed.

In addition, in the present embodiment, a configuration including one spray nozzle 550 has been described as an example, but it is not limited to this. For example, it is also possible to construct a plurality of spray nozzles in the following form: A spray nozzle for dispersing washing foam near the edge 110a, a spray nozzle for dispersing washing foam near the discharge port 115 of the toilet 110, and the like. At this time, the plurality of spray nozzles can be independently rotated, or can be rotated in conjunction with it. With this, the washing foam can be spread on the inner surface of the toilet in a short time.

In this embodiment, the configuration in which one discharge port 550u is provided in the spray nozzle 550 is described as an example, but it is not limited to this. For example, the spray nozzle 550 may be provided with a plurality of discharge outlets for dispersing the cleaning foam near the edge 110a of the toilet bowl 110, and a discharge outlet for dispersing the cleaning foam near the discharge port 115 of the toilet bowl 110. With this, the washing foam can be spread on the inner surface of the toilet in a short time.

Furthermore, in the present embodiment, the configuration in which the spray nozzle 550 spreads at two locations near the edge 110a of the toilet 110 and near the discharge port 115 of the toilet 110 is described as an example, but it is not limited to this. For example, in addition to the above, the cleaning foam may be further distributed by dispersing the nozzle 550 at an intermediate position (height) between the edge 110a of the toilet 110 and the discharge port 115. This can further reduce the occurrence of scattered missing parts.

As explained above, the sanitary washing device of the present invention is provided with: a toilet seat that is freely lifted upside down, a body that supports the toilet seat to be lifted upside down, a heat exchanger that heats the washing water, and a body washing The washing nozzle, the foam generating part that generates washing foam, and the spray nozzle that spouts washing water or washing foam to the inner surface of the toilet. Furthermore, it is provided with a variable amount of spouted water that can change the flow rate of the washing water or washing foam sent to the spray nozzle, a spray nozzle driving section that rotationally drives the discharge port of the spray nozzle in a predetermined direction, and the spray nozzle On-off valve for opening and closing the divergent flow path of the nozzle, The control unit and the operation unit that instructs the control unit to set. Furthermore, the control unit may control the spray nozzle 550 to spread the washing water or the washing foam in the areas where the height of the spray nozzle to the inner surface of the toilet is different.

According to this configuration, when the foam (hereinafter referred to as "washing foam") is spread to the toilet by the spray nozzle, the control unit will spread the cleaning foam according to the high and low areas of the height of the inner surface of the toilet to spread Almost all the week to the inside of the toilet. Thereby, a foam film can be formed from the front of the toilet to the inner surface of the rear without any omission, and the adhesion of dirt can be effectively suppressed.

In addition, the control unit of the sanitary washing device of the present invention rotates the spray nozzle driving unit forward and reverse while changing the output of the variable water discharge unit when the spray foam is sprayed to the toilet by the spray nozzle. Moreover, the control unit may also control the direction of the discharge outlet of the spray nozzle across the inner circumference of the toilet, and distribute the washing foam with at least one back-and-forth rotation motion.

With this configuration, first, the control section rotates the spray nozzle driving section forward, and moves the direction of the discharge nozzle of the spray nozzle from the rear of the toilet to the rear of the toilet through the front of the toilet, so that the spray nozzle disperses the washing foam to the toilet. After that, the spray nozzle driving part is rotated reversely, and the direction of the discharge nozzle of the spray nozzle is moved from the rear of the toilet to the direction of returning to the rear of the toilet through the front of the toilet to spread the washing foam to the toilet by the spray nozzle. That is, the washing foam is spread by the spray nozzle by being driven at least once back and forth on the inner peripheral surface of the toilet. At this time, the output of the variable amount of water discharge is controlled to cause the washing foam to reach the edge of the toilet or near the draught surface during the forward rotation or the reverse rotation, and the washing nozzle spreads the washing foam. In this way, the washing foam can be spread to almost the entire circumference of the inner surface of the toilet, and in front of the toilet A foam film is formed on the inner surface of the rear. As a result, the adhesion of dirt can be effectively suppressed.

In addition, the control unit of the sanitary washing device of the present invention may be configured as follows: the output of the variable amount of discharge water during the normal rotation of the spray nozzle drive unit is controlled to be lower than that during the reverse rotation of the spray nozzle drive unit The output of the spray nozzle is used to spit out the washing foam from the outlet of the spray nozzle.

According to this configuration, when the spray nozzle that is rotationally driven in one round is rotated forward and backward, the output of the variable amount of discharge water is weakened to spread the washing foam to the side closer to the draught surface than the edge of the toilet . On the other hand, when rotating in the reverse direction, the output of the variable amount of spouted water is enhanced to spread the washing foam to the side close to the edge of the toilet. In this way, it is possible to cover the draught surface at the upper part of the outlet of the toilet with washing foam at the beginning of washing water spreading. Furthermore, the washing bubble can be spread to almost the entire circumference of the inner surface of the toilet close to the edge. As a result, a foam film can be formed on the inner surface from the front to the back of the toilet, and the adhesion of dirt can be suppressed.

In addition, the sanitary washing device of the present invention further includes a human body detection sensor that detects the entry and exit of the user in the toilet, and the control unit may also control the spray nozzle so that when the human body detection sensor detects that the user enters the toilet, Spread the washing foam in the toilet.

According to this configuration, when the human body detection sensor detects that the user enters the toilet, the cleaning foam is spread on the inner surface of the toilet almost in advance. Thereby, a foam film can be reliably formed on the inner surface of the toilet before use, so that the adhesion of the dirt can be suppressed when it does not occur.

In addition, the foam generating part of the sanitary washing device of the present invention includes: A foam box that supplies washing water from the heat exchanger through the variable water discharge portion, a pump that supplies the detergent in the detergent box to the foam box, and an air pump that supplies air to the foam box. In addition, the control unit may control the spray nozzle to discharge the washing water or washing foam of the foam box.

According to this configuration, not only water or warm water can be discharged to the surface of the cleaning nozzle or the inner surface of the toilet, but also cleaning foam containing detergent can be discharged. Thereby, the washing effect and the effect of suppressing the adhesion of dirt can be improved. In addition, it is possible to suppress the spread of unpleasant odors by the cleaning foam containing lotion. As a result, the user can be provided with a visual sense of cleanliness and comfort during use.

130‧‧‧Control Department

500‧‧‧ Washing Department

510‧‧‧ Water supply connection

511‧‧‧ filter

512、531‧‧‧Check valve

513‧‧‧ Constant flow valve

514‧‧‧Water stop solenoid valve

515‧‧‧overflow valve

516‧‧‧Water pump (variable discharge volume)

517‧‧‧Fluid regulating valve

517a‧‧‧Valve body

517b‧‧‧stepping motor

530‧‧‧Different channels

530a‧‧‧ On-off valve

532‧‧‧ Foam box

533‧‧‧Lotion box

534‧‧‧Lotion pump

535‧‧‧Air pump

550‧‧‧Spray nozzle

550a‧‧‧Spray nozzle driver

560‧‧‧Foam Generation Department

600‧‧‧Auxiliary water tank

603‧‧‧Atmospheric opening

620‧‧‧Water level detection sensor

630‧‧‧Inlet water temperature sensor

690‧‧‧Clean water supply flow path

700‧‧‧ heat exchanger

730‧‧‧Hot water discharge temperature sensor

731‧‧‧Overheating sensor

750‧‧‧Buffer box

800‧‧‧ nozzle device

820‧‧‧Nozzle Department

830‧‧‧Nozzle body

831‧‧‧Hip washing nozzle

832‧‧‧ Pussy washing nozzle

833‧‧‧Nozzle cleaning department

860‧‧‧ Washing nozzle drive unit

Claims (6)

A sanitary washing device, which has: Freely set up on the toilet seat; Support the aforementioned toilet seat as a body that can be lifted upside down; Heat exchanger for heating washing water; Washing nozzle for washing human body; The foam generating part that generates the cleaning foam; Sprinkling nozzles for spitting out washing water or washing foam on the inner surface of the toilet; A variable amount of spouted water that can change the flow rate of the washing water sent to the aforementioned spray nozzle; A spray nozzle driving part that rotationally drives the direction of the discharge port of the spray nozzle; On-off valve to open and close the water path to the aforementioned spray nozzle; A control unit that controls their actions; and The operation unit that instructs and sets the aforementioned control unit, The control unit changes the direction of the outlet of the dispersion nozzle driven by the dispersion nozzle driving unit in response to the signals of the seating detection unit and the toilet seat switch detection unit, and the seating detection unit detects the seating state of the toilet seat The toilet seat switch detection unit detects the open and closed state of the toilet seat. The sanitary washing device according to claim 1, wherein the control unit changes the output of the variable water discharge amount in response to the signals of the seating detection unit and the toilet seat switch detection unit, and the seating detection unit detects seating on the toilet seat shape At this time, the toilet seat switch detection unit detects the open and closed state of the toilet seat. The sanitary washing device according to claim 1 or 2, wherein the foam generating section includes: a foam tank, the opening and closing valve is opened by the control section, and the washing water is sent from the heat exchanger by the variable water discharge amount section ; A lotion pump, which supplies the lotion of the lotion box to the aforementioned foam box; and an air pump, which supplies air to the aforementioned foam box, Then, the washing water or washing foam of the foam box is discharged from the spray nozzle. The sanitary washing device according to any one of claims 1 to 3, wherein the control part inputs the foam dispersion when the signal of the seating detection part is not seated and the signal of the toilet seat switch detection part is a closed toilet seat At the time of signal, the direction of the discharge nozzle of the spray nozzle drives the spray nozzle drive part within a wide range of rotation angle, and at the same time controls the variable water discharge amount part with a high output so that the washing foam faces the inner surface of the toilet Spit out all week. The sanitary washing device according to any one of claims 1 to 4, wherein the control section inputs a foam dispersion signal when the signal of the seating detection section is in a seated state and the signal of the toilet seat switch detection section is in a closed toilet seat state At this time, after the driving of the spray nozzle driving portion is rotated until the direction of the discharge nozzle of the spray nozzle is directed to the position behind the toilet, the variable amount of sprayed water is controlled with a low output so that the washing foam is discharged toward the rear of the toilet. The sanitary washing device according to any one of claims 1 to 5, wherein the signal of the control section at the seating detection section is in a non-seating state and the toilet seat When the signal of the switch detection unit is a foam dispersing signal when the toilet seat is open, the dispersing nozzle driving unit is rotationally driven until the direction of the outlet of the dispersing nozzle is toward the position of the outlet of the toilet, and the outlet is controlled with an intermediate output The variable amount of water causes the washing foam to be discharged toward the discharge port of the toilet.

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