Hygienic washing device

Abstract

The present invention provides a sanitary washing device capable of inhibiting a water supply hose from being bent or a case from being tilted when detached from a toilet and temporarily placed, while easily achieving compactness in the up-and-down direction. The sanitary washing device of the present invention is characterized by comprising: a nozzle that discharges water to a part of a human body; a valve unit that is provided on a pipe between a water supply source and the nozzle and has a solenoid valve; a case that houses the nozzle and the valve unit; a water supply hose that is used to supply water from the water supply source to the inside of the case and has flexibility; and a water supply connection portion that connects the water supply hose and the valve unit, wherein the case has a recessed portion that is recessed upward from a bottom surface, and the water supply connection portion is provided on a side surface of the recessed portion that faces a rear or a side.

Description

[0001] This application is a divisional application of patent application No. 202010558357.7, filed on June 18, 2020, entitled "Sanitary Cleaning Device". Technical Field

[0002] The present invention generally relates to a hygienic cleaning device. Background Technology

[0003] It is well known that sanitary flushing devices are easily installed and removed from toilets. Such devices include a water supply hose for supplying water from a water source to the interior of the casing. If this hose extends downwards from the bottom of the casing, several problems arise: during cleaning or when temporarily placing the sanitary flushing device, which has been removed from the toilet, on the floor or toilet, the hose may become trapped between the floor and the casing or between the toilet and the casing, resulting in bending; or the casing may tilt due to the reaction force of the hose, making temporary placement difficult. Furthermore, in recent years, there has been a demand for more compact sanitary flushing devices to improve their design. However, if the hose extends downwards from the bottom of the casing, the vertically extending hose needs to be bent horizontally within the casing to connect to the water supply connection, or the direction of the pipe needs to be changed from vertical to horizontal to house the water supply pipe component within the casing. Therefore, the need to bend the hose or to adjust the height to match the water supply pipe component makes it difficult to achieve a compact casing both vertically and horizontally.

[0004] Patent documents Patent Document 1: Japanese Patent Application Publication No. 10-299061 Summary of the Invention

[0005] This invention is based on the understanding of such a problem, and the technical problem to be solved is to provide a sanitary cleaning device that can prevent the water supply hose from bending or the shell from tilting when it is temporarily placed after being removed from the toilet, while also being easy to make compact in the vertical direction.

[0006] The first invention is a hygienic washing device comprising: a nozzle for dispensing water to a specific area of ​​the human body; a valve unit disposed on a pipeline between a water supply source and the nozzle and having a solenoid valve; a housing for housing the nozzle and the valve unit; a flexible water supply hose for supplying water from the water supply source to the interior of the housing; and a water supply connection portion for connecting the water supply hose and the valve unit. The device is characterized in that the housing has a recessed portion extending downwards from the bottom, and the water supply connection portion is disposed on the rearward or lateral side of the recessed portion.

[0007] According to this sanitary cleaning device, a recessed portion extending downwards from the bottom surface is provided on the housing, and the water supply connection is located on the rearward or sideward side of the recess, allowing the water supply hose to extend rearward or sideward from the water supply connection. Therefore, when the sanitary cleaning device is temporarily placed on the floor or toilet after being removed from the toilet, bending of the water supply hose due to being caught between the floor and the housing or between the toilet and the housing can be prevented. Furthermore, since tilting of the housing due to the reaction force of the water supply hose can be prevented, temporary placement is easier. Moreover, the ability to allow the water supply hose to extend rearward or sideward from the water supply connection facilitates a compact vertical design of the sanitary cleaning device.

[0008] The second invention is a sanitary cleaning device characterized in that, in the first invention, the depth of the recess in the direction of the water supply connection is greater than twice the outer diameter of the water supply hose.

[0009] According to this sanitary cleaning device, by making the depth of the recess in the water supply connection section greater than twice the outer diameter of the water supply hose, sufficient space can be provided for processing the water supply hose even when the water supply hose is bent.

[0010] The third invention is a hygienic cleaning device characterized in that, in the first or second invention, the recess is open toward at least one of the rear or side.

[0011] According to this sanitary cleaning device, by opening the recess towards at least one of the rear or side, the water supply hose can extend towards at least one of the rear or side of the recess. This ensures sufficient space for handling the water supply hose while reducing the size of the recess. Consequently, the space inside the housing for arranging other parts can be increased. Furthermore, the housing can be made more compact.

[0012] The fourth invention is a sanitary cleaning device characterized in that, in any one of the first to third inventions, the width of the recess widens toward the direction of the water supply connection.

[0013] According to this sanitary cleaning device, by widening the recess towards the water supply connection, sufficient space is ensured for handling the water supply hose, while simultaneously reducing the size of the recess. This increases the space inside the housing for arranging other components. Furthermore, the housing can be made more compact.

[0014] The fifth invention is a hygienic cleaning device characterized in that, in any one of the first to fourth inventions, it further comprises a detachable cover member disposed on the side of the recess.

[0015] According to this sanitary cleaning device, for example, when the toilet bowl does not have a through hole for inserting a water supply hose, the water supply hose can be accessed from the side of the recess by removing the cover member. On the other hand, for example, when the toilet bowl has a through hole for inserting a water supply hose, the side of the recess can be hidden by installing the cover member. This allows the water supply connection to be invisible to the user, improving the aesthetic design.

[0016] The sixth invention is a hygienic cleaning device characterized in that, in any one of the first to fifth inventions, it further includes a control unit for controlling the operation of the nozzle and the valve unit, and the control unit is disposed above the recess inside the housing.

[0017] According to this hygienic cleaning device, by positioning the control unit above the recess inside the housing, it is possible to position the control unit higher than the valve unit. Therefore, for example, in the event of leakage from the valve unit, it is possible to prevent water leaking from the valve unit from splashing onto the control unit.

[0018] According to the present invention, a sanitary cleaning device is provided that can prevent the water supply hose from bending or the casing from tilting when temporarily placed after being removed from the toilet, while also being easily compact in the vertical direction. Attached Figure Description

[0019] Figure 1 It is a perspective view of a toilet flushing device that is schematically represented by the sanitary cleaning device involved in the implementation method. Figure 2 It is a block diagram that schematically represents the main components of the sanitary cleaning apparatus involved in the implementation method. Figure 3 It is a plan view representing a portion of the hygiene cleaning apparatus involved in the schematic representation of the implementation method. Figure 4 It is a cross-sectional view representing a portion of the sanitary cleaning apparatus involved in the schematic representation of the embodiment. Figure 5 It is a cross-sectional view representing a portion of the sanitary cleaning apparatus involved in the schematic representation of the embodiment. Figure 6 It is a cross-sectional view representing a portion of the sanitary cleaning apparatus involved in the schematic representation of the embodiment. Figure 7 (a) and Figure 7 (b) is a plan view and front view of the valve unit of the sanitary cleaning device involved in the schematic representation of the embodiment. Figure 8 (a) and Figure 8 (b) is a side view of the valve unit of the sanitary cleaning device involved in the schematic representation of the embodiment. Figure 9It is a plan view showing a portion of the casing of the hygiene cleaning device involved in the schematic representation of the embodiment. Figure 10 (a) and Figure 10 (b) is a cross-sectional view of a portion of the housing of the hygienic cleaning device involved in the schematic representation of the embodiment. Figure 11 This is a perspective view showing a portion of the casing of the hygiene cleaning device involved in the schematic representation of the embodiment. Figure 12 It is a plan view of the hygiene cleaning device involved in the schematic representation of the implementation method. Figure 13 It is a cross-sectional view of the sanitary cleaning apparatus involved in the schematic representation of the implementation method. Figure 14 It is a cross-sectional view of the sanitary cleaning apparatus involved in the schematic representation of the implementation method. Figure 15 It is a cross-sectional view of the sanitary cleaning apparatus involved in the schematic representation of the implementation method. Figure 16 It is a cross-sectional view of the sanitary cleaning apparatus involved in the schematic representation of the implementation method. Symbol Explanation 10-Water supply source; 15-Water supply hose; 20-Water guide section; 21-Buttock washing flow path; 22-Gentle washing flow path; 23-Lower body washing flow path; 24-Surface cleaning flow path; 25-Spraying flow path; 100-Sanitary washing device; 200-Toilet seat; 210-Heater; 300-Toilet lid; 400-Shell; 400a-Shell plate; 400b-Shell cover; 400d-Bottom surface; 400e-Side End; 401-Power supply circuit; 403-Human body detection sensor; 404-Seated detection sensor; 405-Control unit; 410-Lower part; 410a-Top; 411-Higher part; 412-Recess; 412a-Side; 412b-Top; 412c-Side; 413-Hose storage part; 414-Guide part; 415-Drainage path; 415a~415c-1st~3rd zones; 416-Drainage guide part; 417a, 417b-1st and 2nd drain outlets; 419-Cover component; 420-Water supply connection part; 430-Valve unit; 431-Filter; 432-Solenoid valve; 433-Adjusting valve; 434-Check valve; 435-Connection part; 436-Reduction section; 440-Heat exchanger unit; 442-Flow sensor; 450-Electrolytic cell unit; 452- Vacuum disruptor; 454-Pressure modulation unit; 471-Flow adjustment unit; 472-Flow path switching unit; 473-Nozzle; 474a-Buttock washing nozzle; 474b-Gentle washing nozzle; 474c-Lower body washing nozzle; 476-Nozzle drive unit; 478-Nozzle cleaning unit; 479-Spray nozzle; 500-Operating unit; 800-Toilet bowl; 801-Basin; 900-Flushing device. Detailed Implementation

[0020] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Furthermore, in each drawing, the same reference numerals are used to denote the same constituent elements, and detailed descriptions are omitted where appropriate. Figure 1 It is a perspective view of a toilet flushing device that is schematically represented by the sanitary cleaning device involved in the implementation method. like Figure 1 As shown, the toilet flushing device 900 includes a Western-style toilet seat (toilet bowl) 800 and a sanitary washing device 100 mounted thereon. The sanitary washing device 100 has a housing 400, a toilet seat 200, and a toilet lid 300. The toilet seat 200 and the toilet lid 300 are swivelly supported on the housing 400. The housing 400 has a lower housing plate 400a and an upper housing cover 400b, and houses functional parts such as a nozzle 473 in its internal space. A heater 210 for heating the toilet seat 200 is provided inside the toilet seat 200.

[0021] In the following description of the implementation method, although "above", "below", "front", "rear", "right side", and "left side" are used, it is as follows: Figure 1 As shown, these directions are those observed from the user seated on toilet seat 200.

[0022] The housing 400 contains a localized cleaning function for cleaning specific areas such as the buttocks of the user sitting on the toilet seat 200. This localized cleaning function includes, for example, a nozzle 473. Additionally, the hygiene cleaning device 100 is equipped with a seating detection sensor 404 (see reference) for detecting when the user sits on the toilet seat 200. Figure 2 When the seating detection sensor 404 detects a user sitting on the toilet seat 200, if the user operates the control unit 500 (see reference 500, for example, a remote control)... Figure 2 By operating this mechanism, the nozzle 473 can be directed into or retracted from the basin 801 of the toilet bowl 800. Furthermore, in... Figure 1 The hygienic cleaning device 100 shown indicates that the nozzle 473 is inside the basin 801.

[0023] Nozzle 473 sprays water (washing water) onto a specific area of ​​the body to clean that area. The tip of nozzle 473 is provided with a buttock-cleaning nozzle 474a, a gentle-cleaning nozzle 474b, and a genital-cleaning nozzle 474c. Nozzle 473 can spray water from the buttock-cleaning nozzle 474a or the gentle-cleaning nozzle 474b at its tip to clean the buttocks of a user sitting on toilet seat 200. Alternatively, nozzle 473 can spray water from the genital-cleaning nozzle 474c at its tip to clean the genital area of ​​a woman sitting on toilet seat 200. Furthermore, when referred to as "water" in this specification, it includes not only cold water but also heated hot water.

[0024] In the mode of washing the "buttocks", there are, for example, "buttocks washing" and "gentle washing" which washes gently with a softer water flow than "buttocks washing". The nozzle 473 can perform, for example, "buttocks washing", "gentle washing" and "lower body washing".

[0025] Furthermore, in Figure 1 In the nozzle 473 shown, although the genital cleansing nozzle 474c is positioned closer to the tip of the nozzle 473 than the gentle cleansing nozzle 474b, and the gentle cleansing nozzle 474b is positioned closer to the tip of the nozzle 473 than the buttock cleansing nozzle 474a, the positions of the buttock cleansing nozzle 474a, the gentle cleansing nozzle 474b, and the genital cleansing nozzle 474c are not limited to these. Furthermore, in Figure 1 Although the nozzle 473 shown has three water outlets, the gentle cleaning water outlet 474b can be omitted, or more than four water outlets can be provided.

[0026] Figure 2It is a block diagram that schematically represents the main components of the sanitary cleaning apparatus involved in the implementation method. Figure 2 The text simultaneously indicates the main components of both the water system and the electrical system. like Figure 2 As shown, the sanitary cleaning device 100 has a water guiding section 20. The water guiding section 20 has a pipe 20a from a water supply source 10, such as a tap water pipe or a water tank, to a nozzle 473. The water guiding section 20 guides water supplied from the water supply source 10 to the nozzle 473 through the pipe 20a. The pipe 20a is formed, for example, by various parts such as a water supply hose 15, a water supply connection 420, a valve unit 430, a heat exchanger unit 440, a flow path switching unit 472, etc., as described below, and multiple pipes connecting these various parts.

[0027] Water supply hose 15 supplies water from water source 10 to the interior of housing 400. Water supply hose 15 is a flexible hose. Water supply connection 420 connects water supply hose 15 to valve unit 430. Water supply connection 420 can be integrally formed with valve unit 430 or can be separately formed from valve unit 430.

[0028] Valve unit 430 is disposed downstream of water supply hose 15 on pipeline 20a. Valve unit 430 has at least a solenoid valve 432. In this example, valve unit 430 includes: solenoid valve 432; filter 431 disposed upstream of solenoid valve 432; regulating valve 433 disposed downstream of solenoid valve 432; and check valve 434 disposed downstream of regulating valve 433. Valve unit 430 is disposed, for example, on pipeline 20a between the downstream of water supply hose 15 and the upstream of heat exchanger unit 440. Valve unit 430 may also include water supply connection 420.

[0029] A filter 431 is provided on the upstream side of the valve unit 430. The filter 431 filters out foreign matter and other contaminants contained in the water supplied from the water source 10. In this example, the water supply connection 420 is integrally formed with the filter 431 on the upstream side.

[0030] A solenoid valve 432 is provided downstream of the filter 431. The solenoid valve 432 is an openable and closable solenoid valve that controls the water supply according to instructions from a control unit 405 located inside the housing 400. In other words, the solenoid valve 432 opens and closes the pipeline 20a. By keeping the solenoid valve 432 open, water supplied from the water source 10 flows in the pipeline 20a.

[0031] A regulating valve 433 is provided downstream of the solenoid valve 432. The regulating valve 433 adjusts the pressure and water flow rate within the pipeline 20a. The regulating valve 433 can be, for example, a pressure regulating valve that adjusts the pressure within the pipeline 20a to a specified range. The regulating valve 433 can also be, for example, a flow rate regulating valve that adjusts the flow rate of water flowing within the pipeline 20a to a specified range.

[0032] A check valve 434 is installed downstream of the regulating valve 433. When the pressure in pipeline 20a decreases, etc., the check valve 434 prevents backflow of water to the upstream side. The check valve 434 can be installed as needed and may be omitted.

[0033] A heat exchanger unit 440 (heating section) is provided downstream of the valve unit 430. The heat exchanger unit 440 has a heater that heats the water supplied from the water supply source 10 to, for example, a predetermined temperature. That is, the heat exchanger unit 440 generates warm water.

[0034] The heat exchanger unit 440 is an instantaneous heating type heat exchanger, such as one using a ceramic heater. Compared to a hot water storage heating type heat exchanger that uses a hot water storage tank, the instantaneous heating type heat exchanger can heat water to a specified temperature in a shorter time. Furthermore, the heat exchanger unit 440 is not limited to an instantaneous heating type heat exchanger; it can also be a hot water storage heating type heat exchanger. Additionally, the heating element is not limited to a heat exchanger; other heating methods, such as microwave heating, can also be used.

[0035] The heat exchanger unit 440 is connected to the control unit 405. The control unit 405 controls the heat exchanger unit 440 according to the user's operation of the operation unit 500, thereby heating the water to the temperature set by the operation unit 500.

[0036] A flow sensor 442 is installed downstream of the heat exchanger unit 440. The flow sensor 442 detects the flow rate of water discharged from the heat exchanger unit 440. That is, the flow sensor 442 detects the flow rate of water flowing within the pipe 20a. The flow sensor 442 is connected to the control unit 405. The flow sensor 442 inputs the flow rate detection result to the control unit 405. Alternatively, the flow sensor 442 can also be installed upstream of the heat exchanger unit 440.

[0037] An electrolyzer unit 450 is provided downstream of the flow sensor 442. The electrolyzer unit 450 electrolyzes tap water flowing inside it to produce a liquid containing hypochlorous acid (functional water). The electrolyzer unit 450 is connected to a control unit 405. The electrolyzer unit 450 produces functional water according to the control of the control unit 405. The electrolyzer unit 450 can be provided as needed and may be omitted.

[0038] The functional water generated in the electrolytic cell unit 450 can be, for example, a solution containing metal ions such as silver ions and copper ions. Alternatively, the functional water generated in the electrolytic cell unit 450 can also be a solution containing electrolyzed chlorine or ozone. Alternatively, the functional water generated in the electrolytic cell unit 450 can also be acidic or alkaline water.

[0039] A vacuum breaker (VB) 452 is provided downstream of the electrolytic cell unit 450. The vacuum breaker 452 includes, for example, a flow path for water flow; an air intake for introducing air into the flow path; and a valve structure for opening and closing the air intake. For example, when water flows in the flow path, the valve structure blocks the air intake, opening it to introduce air into the flow path while stopping the water flow. That is, when there is no water flow in the water guide section 20, the vacuum breaker 452 introduces air into the pipe 20a. The valve structure may be, for example, a float valve. Furthermore, the vacuum breaker 452 may also be provided upstream of the electrolytic cell unit 450.

[0040] As described above, the vacuum breaker 452 introduces air into the pipe 20a, thereby promoting drainage, for example, the portion of the pipe 20a closer to the downstream end than the vacuum breaker 452. The vacuum breaker 452, for example, promotes drainage from the nozzle 473. In this way, the vacuum breaker 452 discharges water from the nozzle 473 and introduces air into it, thereby, for example, preventing backflow of washing water from the nozzle 473, wastewater accumulated in the basin 801, etc., towards the water supply source 10 (water supply).

[0041] A pressure modulation unit 454 is provided downstream of the vacuum breaker 452. The pressure modulation unit 454 pulses or accelerates the water flow within the pipe 20a of the water guide section 20, causing the water ejected from the buttock-cleaning nozzle 474a, gentle-cleaning nozzle 474b, lower-body-cleaning nozzle 474c of the nozzle 473, and the nozzle cleaning section 478 to pulse. In other words, the pressure modulation unit 454 changes the flow state of the water within the pipe 20a. The pressure modulation unit 454 is connected to the control unit 405. The pressure modulation unit 454 changes the water flow state according to the control of the control unit 405. The pressure modulation unit 454 changes the pressure of the water within the pipe 20a. The pressure modulation unit 454 is provided as needed and can be omitted.

[0042] A flow rate adjustment unit 471 is provided downstream of the pressure modulation unit 454. The flow rate adjustment unit 471 adjusts the water pressure (flow rate). A flow path switching unit 472 is provided downstream of the flow rate adjustment unit 471. The flow path switching unit 472 switches the water supply to the nozzle 473 and the nozzle cleaning unit 478. The flow rate adjustment unit 471 and the flow path switching unit 472 can also be provided as a single unit. The flow rate adjustment unit 471 and the flow path switching unit 472 are connected to the control unit 405. The control unit 405 controls the operation of the flow rate adjustment unit 471 and the flow path switching unit 472.

[0043] Downstream of the flow path switching section 472, there are nozzles 473, nozzle cleaning section 478, and spray nozzles 479. Nozzle 473 is driven by nozzle driving section 476 and enters into basin 801 of toilet 800 or retracts from basin 801.

[0044] The nozzle cleaning section 478 sprays functional water or water from the discharge section to clean the outer peripheral surface (body) of the nozzle 473. The spray nozzle 479 atomizes the cleaning water or functional water and sprays it onto the basin 801. In this example, a spray nozzle 479, different from the nozzle 473 used for washing the human body, is provided. However, it is not limited to this; a discharge port for spraying atomized liquid into the basin 801 may also be provided on the nozzle 473.

[0045] Additionally, downstream of the flow path switching unit 472, there are a buttock-cleansing flow path 21, a gentle-cleansing flow path 22, and a genital-cleansing flow path 23. These are supplied to the nozzle 473 via the water guide unit 20 with water supplied from the water supply source 10 or functional water generated in the electrolysis unit 450. The buttock-cleansing flow path 21 connects the flow path switching unit 472 to the buttock-cleansing outlet 474a. The gentle-cleansing flow path 22 connects the flow path switching unit 472 to the gentle-cleansing outlet 474b. The genital-cleansing flow path 23 connects the flow path switching unit 472 to the genital-cleansing outlet 474c.

[0046] Additionally, a surface cleaning flow path 24 and a spraying flow path 25 are provided downstream of the flow path switching section 472. The surface cleaning flow path 24 guides water supplied from the water supply source 10 or functional water generated in the electrolytic cell unit 450 to the water discharge section of the nozzle cleaning section 478 via the water guiding section 20. The spraying flow path 25 guides water supplied from the water supply source 10 or functional water generated in the electrolytic cell unit 450 to the spray nozzle 479 via the water guiding section 20.

[0047] The control unit 405 switches the opening and closing of the various flow paths—buttock cleansing flow path 21, gentle cleansing flow path 22, genital cleansing flow path 23, surface cleaning flow path 24, and spray flow path 25—by controlling the flow path switching unit 472. In this way, the flow path switching unit 472 switches the multiple water outlets, such as the buttock cleansing nozzle 474a, gentle cleansing nozzle 474b, genital cleansing nozzle 474c, nozzle cleaning unit 478, and spray nozzle 479, between a state where they are connected to the pipe 20a and a state where they are not connected to the pipe 20a.

[0048] Power is supplied from the power circuit 401 to the control unit 405. The control unit 405 controls the operation of the solenoid valve 432, heat exchanger unit 440, electrolytic cell unit 450, pressure modulation unit 454, flow adjustment unit 471, flow path switching unit 472, nozzle drive unit 476, etc., based on signals from the human body detection sensor 403, seating detection sensor 404, flow sensor 442, operation unit 500, etc. Thus, the control unit 405 controls the operation of the nozzle 473, valve unit 430, etc.

[0049] Figure 3 It is a plan view representing a portion of the hygiene cleaning apparatus involved in the schematic representation of the implementation method. Figures 4-6 It is a cross-sectional view representing a portion of the sanitary cleaning apparatus involved in the schematic representation of the embodiment. Figure 3 The image shows the toilet seat 200 and cover 400b removed. Additionally, Figure 3 The position of toilet seat 200 is indicated by an imaginary line. Figure 4 Based on Figure 3 The cross-sectional view along line A1-A2 shown. Figure 5 Based on Figure 3 The cross-sectional view along line B1-B2 shown. Figure 6 Based on Figure 3 The cross-sectional view along line C1-C2 shown.

[0050] like Figures 3-6 As shown, the valve unit 430, heat exchanger unit 440, and control unit 405 are disposed inside the housing 400 (i.e., the space between the housing plate 400a and the housing cover 400b). In other words, the valve unit 430, heat exchanger unit 440, and control unit 405 are housed within the housing 400.

[0051] like Figure 3 , Figure 5 , Figure 6 As shown, the valve unit 430 and the heat exchanger unit 440 are configured to be closer to the front than the control unit 405. More specifically, the rear end of the valve unit 430 is located closer to the front than the front end of the control unit 405. Similarly, the rear end of the heat exchanger unit 440 is located closer to the front than the rear end of the control unit 405, and the front end of the heat exchanger unit 440 is located closer to the front than the front end of the control unit 405.

[0052] As will be described later, since the shell plate 400a is inclined towards the central side and the front side in the left-right direction, by configuring the valve unit 430 closer to the front than the control unit 405, water leaking from the valve unit 430 can be prevented from splashing onto the control unit 405. Furthermore, as will be described later, since the shell plate 400a is inclined towards the central side and the front side in the left-right direction, by configuring the heat exchanger unit 440 closer to the front than the control unit 405, water leaking from the heat exchanger unit 440 can be prevented from splashing onto the control unit 405.

[0053] A drainage path 415 is provided on the inner bottom surface of the housing 400, which is used to drain water leaking from the valve unit 430 or the heat exchanger unit 440 to the toilet 800 when leakage occurs. In other words, a drainage path 415 is provided on the top of the housing plate 400a. The drainage path 415 will be described later.

[0054] By arranging the valve unit 430 closer to the front than the control unit 405, the drainage path 415 (first region 415a described later) from the valve unit 430 to the toilet 800 can be shortened. This allows water leaking from the valve unit 430 to be easily discharged into the toilet 800. Furthermore, since the drainage path 415 can be shortened, the slope of the bottom surface of the housing 400 can be reduced. Therefore, by reducing the vertical length of the housing 400, the housing 400 can be made more compact.

[0055] like Figure 5 and Figure 6 As shown, at least a portion of the valve unit 430 is disposed below the toilet seat 200. In other words, at least a portion of the valve unit 430 overlaps the toilet seat 200 in the vertical direction. More specifically, at least a portion of the valve unit 430 is disposed below the heater 210 of the toilet seat 200. In other words, at least a portion of the valve unit 430 overlaps the heater 210 of the toilet seat 200 in the vertical direction. The valve unit 430 is disposed, for example, below the rear portion of the toilet seat 200. The rear portion of the toilet seat 200 is the portion located further rearward than the center of the toilet seat 200 in the longitudinal direction.

[0056] In this way, by distributing at least a portion of the valve unit 430 below the toilet seat 200 which has an internal heater 210, the heat from the heater 210 can be used to suppress the freezing of the valve unit 430. This prevents damage to the valve unit 430 due to freezing. In particular, even when the valve unit 430 is constructed of a harder material such as PPS to increase its strength, damage to the valve unit 430 due to freezing can still be prevented.

[0057] In this embodiment, preferably, at least 20% of the valve unit 430 is located below the toilet seat 200. Here, "20%" refers to 20% of the area of ​​the valve unit 430 when viewed from above. That is, the area of ​​the portion of the valve unit 430 that overlaps with the toilet seat 200 in the vertical direction when viewed from above is preferably at least 20% of the total area of ​​the valve unit 430 when viewed from above. Furthermore, in this embodiment, it is more preferable that at least 50% of the valve unit 430 is located below the toilet seat 200.

[0058] By positioning more than 20% of the valve unit 430 below the toilet seat 200, heat from the toilet seat 200 can be transferred to the valve unit 430 more efficiently. This, in turn, more reliably prevents damage to the valve unit 430 due to freezing.

[0059] In this embodiment, the valve unit 430 can also be positioned entirely below the toilet seat 200. For example, the rear end of the valve unit 430 can be located further forward than the rear end of the heater 210 of the toilet seat 200. This allows for more efficient heat transfer from the toilet seat 200 to the valve unit 430.

[0060] like Figures 3-6 As shown, in this example, valve unit 430 includes filter 431, solenoid valve 432, regulating valve 433, and check valve 434.

[0061] The filter 431 is disposed below the toilet seat 200. In other words, the filter 431 overlaps the toilet seat 200 in the vertical direction. More specifically, the filter 431 is disposed below the heater 210 of the toilet seat 200. In other words, the filter 431 overlaps the heater 210 of the toilet seat 200 in the vertical direction. The rear end of the filter 431 is located, for example, closer to the front than the rear end of the heater 210 of the toilet seat 200.

[0062] By positioning the filter 431 below the toilet seat 200, damage to the filter 431 due to freezing can be prevented. This, in turn, more reliably prevents damage to the valve unit 430 due to freezing.

[0063] Solenoid valve 432 is disposed below toilet seat 200. In other words, solenoid valve 432 overlaps toilet seat 200 in the vertical direction. More specifically, solenoid valve 432 is disposed below heater 210 of toilet seat 200. In other words, solenoid valve 432 overlaps heater 210 of toilet seat 200 in the vertical direction. The rear end of solenoid valve 432 is, for example, located closer to the front than the rear end of heater 210 of toilet seat 200.

[0064] By positioning the solenoid valve 432 below the toilet seat 200, damage to the solenoid valve 432 due to freezing can be prevented. This, in turn, more reliably prevents damage to the valve unit 430 due to freezing.

[0065] Additionally, valve unit 430 also has a reduced diameter section 436 located between filter 431 and solenoid valve 432. The reduced diameter section 436 connects filter 431 and solenoid valve 432. The inner diameter of the reduced diameter section 436 is smaller than the inner diameter of filter 431.

[0066] The reduced diameter portion 436 is disposed below the toilet seat 200. In other words, the reduced diameter portion 436 overlaps the toilet seat 200 in the vertical direction. More specifically, the reduced diameter portion 436 is disposed below the heater 210 of the toilet seat 200. In other words, the reduced diameter portion 436 overlaps the heater 210 of the toilet seat 200 in the vertical direction. The rear end of the reduced diameter portion 436 is, for example, located closer to the front than the rear end of the heater 210 of the toilet seat 200.

[0067] By positioning the reduced diameter portion 436 below the toilet seat 200, freezing of the reduced diameter portion 436 can be prevented. This prevents blockage of the reduced diameter portion 436 due to freezing. Consequently, damage to the valve unit 430 due to freezing can be more reliably prevented.

[0068] Additionally, the regulating valve 433 is located below the toilet seat 200. The check valve 434 is located below the toilet seat 200. The connection portion 435 between the valve unit 430 and the heat exchanger unit 440 is located below the toilet seat 200.

[0069] like Figures 4-6 As shown, the housing 400 has a lower portion 410 located on the front side and a higher portion 411 located on the rear side. The lower portion 410 is located in front of the higher portion 411 and below the toilet seat 200. The higher portion 411 is located behind the lower portion 410 and is positioned further rearward than the toilet seat 200. The vertical length L2 of the higher portion 411 is greater than the vertical length L1 of the lower portion 410. A valve unit 430 is disposed in the lower portion 410 of the housing 400.

[0070] like Figure 5 and Figure 6 As shown, the upper part 410a of the lower part 410 decreases from the rear to the front. More specifically, the upper part 410a of the lower part 410 decreases from the rear end to the front end.

[0071] In this way, by lowering the upper part 410a of the lower part 410 from the rear to the front, the joint between the toilet seat 200 and the shell 400 can be made smooth. As a result, the appearance design can be improved.

[0072] like Figure 4 As shown, the upper part 410a of the lower portion 410 decreases from the center in the left-right direction toward the side. More specifically, the upper part 410a of the lower portion 410 decreases from the center in the left-right direction toward the side. In this example, the upper part 410a of the lower portion 410 decreases from the center side (left side) toward the right side.

[0073] The valve unit 430 will be described in detail below. Figure 7 (a) is a plan view of the valve unit of the sanitary cleaning device involved in the schematic representation of the embodiment. Figure 7 (b) is a front view of the valve unit of the sanitary cleaning device involved in the schematic representation of the embodiment. Figure 8 (a) and Figure 8 (b) is a side view of the valve unit of the sanitary cleaning device involved in the schematic representation of the embodiment. Figure 8 (a) is a side view of valve unit 430 as viewed from the right side. Figure 8 (b) is a side view of valve unit 430 as viewed from the left side.

[0074] like Figure 7 (a) Figure 7 (b) Figure 8 (a) Figure 8 As shown in (b), the vertical length H1 of valve unit 430 is less than the horizontal length D1 of valve unit 430. That is, the horizontal length D1 of valve unit 430 is greater than the vertical length H1 of valve unit 430. Furthermore, the vertical length H1 of valve unit 430 is less than the horizontal length W1 of valve unit 430. That is, the horizontal length W1 of valve unit 430 is greater than the vertical length H1 of valve unit 430.

[0075] Here, the vertical length H1 of the valve unit 430 is the distance from the lower end of the lowest component of the valve unit 430 to the upper end of the highest component of the valve unit 430. In this example, the vertical length H1 of the valve unit 430 is the distance from the lower end of the filter 431 to the upper end of the regulating valve 433.

[0076] Furthermore, the longitudinal length D1 of the valve unit 430 is the distance from the front end of the foremost component of the valve unit 430 to the rear end of the rearmost component of the valve unit 430. In this example, the longitudinal length D1 of the valve unit 430 is the distance from the front end of the filter 431 to the rear end of the regulating valve 433.

[0077] Furthermore, the left-right length W1 of the valve unit 430 is the distance from the right end of the rightmost component of the valve unit 430 to the left end of the leftmost component of the valve unit 430. In this example, the left-right length W1 of the valve unit 430 is the distance from the right end of the filter 431 to the left end of the solenoid valve 432.

[0078] In this way, by making the vertical length H1 of the valve unit 430 smaller than the longitudinal length D1 and the horizontal length W1 of the valve unit 430, the valve unit 430 can be positioned in the lower part 410 of the front of the housing 400, which was previously considered unused space. This reduces the unused space inside the housing 400, making the housing 400 more compact.

[0079] In addition, by making the vertical length H1 of the valve unit 430 smaller than the front-back length D1 and the horizontal length W1 of the valve unit 430, the water leaking from the valve unit 430 can be more reliably prevented from splashing onto the control unit 405 when leakage occurs.

[0080] Furthermore, by making the front-to-back length D1 and the left-to-right length W1 of the valve unit 430 greater than its vertical length H1, the area of ​​the valve unit 430 opposite to the toilet seat 200 can be increased. This allows for more efficient heat transfer from the toilet seat 200 to the valve unit 430, and more reliably prevents damage to the valve unit 430 due to freezing. Moreover, by reducing the vertical length of the housing 400, the housing 400 can be made more compact.

[0081] In addition, such as Figure 7 As shown in (a), the length D1 of the valve unit 430 in the front-to-back direction is, for example, less than the length W1 of the valve unit 430 in the left-to-right direction.

[0082] In this way, by making the front-to-back length D1 of the valve unit 430 smaller than the left-to-right length W1 of the valve unit 430, the valve unit 430 can be configured to be closer to the front side than the lower part 410. As a result, the unused space inside the housing 400 can be further reduced, and the housing 400 can be further compacted.

[0083] Furthermore, by making the front-to-back length D1 of the valve unit 430 smaller than the left-to-right length W1 of the valve unit 430, the drainage path 415 (first region 415a described later) from the valve unit 430 to the toilet 800 can be shortened. As a result, water leaking from the valve unit 430 can be discharged into the toilet 800 more easily, while the housing 400 can be made more compact.

[0084] Furthermore, by making the front-to-back length D1 of the valve unit 430 smaller than its left-to-right length W1, a larger area of ​​the valve unit 430 can be positioned under the toilet seat 200, even when the valve unit 430 is positioned below the rear of the toilet seat 200. This allows for more efficient heat transfer from the toilet seat 200 to the valve unit 430, and more reliably prevents damage to the valve unit 430 due to freezing. Moreover, by reducing the front-to-back length of the housing 400, the housing 400 can be made more compact.

[0085] like Figure 8 (a) and Figure 8 As shown in (b), the upper end of the valve unit 430 decreases from the rear to the front. That is, the valve unit 430 is configured such that the upper end of the valve unit 430 is above the lower portion 410a in the front-rear direction. More specifically, among the components constituting the valve unit 430, the taller components are disposed on the rear side of the valve unit 430, and the shorter components are disposed on the front side of the valve unit 430.

[0086] In this example, the height of filter 431 is lower than the height of solenoid valve 432. Filter 431 is configured to be closer to the front than solenoid valve 432. More specifically, the front end of filter 431 is located further forward than the front end of solenoid valve 432. Additionally, the height of regulating valve 433 is higher than the height of solenoid valve 432. Regulating valve 433 is configured to be closer to the rear than solenoid valve 432. More specifically, the front end of regulating valve 433 is located further rearward than the front end of solenoid valve 432.

[0087] In this way, by lowering the upper end of the valve unit 430 from the rear to the front, the valve unit 430 can be easily positioned in the lower part 410 even when the upper part 410a of the lower part 410 is lowered from the rear to the front.

[0088] Furthermore, by lowering the upper end of the valve unit 430 from rear to front, even when the valve unit 430 is positioned on the lower portion 410 of the upper 410a, which is lowered from rear to front, it is possible to prevent the valve unit 430 from getting too close to the upper portion (cover 400b) of the housing 400. As a result, when water leakage occurs from the valve unit 430, it is possible to prevent the water leaking from the valve unit 430 from splashing onto the upper portion (cover 400b) of the housing 400, and it is possible to prevent the water leaking from the valve unit 430 from leaking out of the equipment through the gap in the housing (the gap between the housing plate 400a and the cover 400b).

[0089] like Figure 7As shown in (b), the upper end of the valve unit 430 decreases laterally from the center in the left-right direction. That is, the valve unit 430 is configured such that the upper end of the valve unit 430 extends towards the upper surface 410a of the lower portion 410 in the left-right direction. More specifically, among the components constituting the valve unit 430, the taller components are disposed on the central side of the valve unit 430 in the left-right direction, and the shorter components are disposed on the side side of the valve unit 430.

[0090] In this example, the height of filter 431 is lower than the height of solenoid valve 432. Filter 431 is configured to be closer to the side (right side in this example) than solenoid valve 432. More specifically, the right end of filter 431 is located closer to the side (right side) than the right end of solenoid valve 432. Additionally, the height of regulating valve 433 is higher than the height of solenoid valve 432. Regulating valve 433 is configured to be closer to the center (left side in this example) than solenoid valve 432. More specifically, the right end of regulating valve 433 is located closer to the center (left side) than the right end of solenoid valve 432.

[0091] In this way, by lowering the upper end of the valve unit 430 from the center in the left-right direction toward the side, it is easy to position the valve unit 430 in the lower part 410 even when the upper part 410a of the lower part 410 is lowered from the center in the left-right direction toward the side.

[0092] Furthermore, by lowering the upper end of the valve unit 430 from the center in the left-right direction toward the side, even when the valve unit 430 is positioned on the lower portion 410 of the upper 410a, which is lowered from the center in the left-right direction toward the side, it is possible to prevent the valve unit 430 from getting too close to the upper part (shell 400b) of the housing 400. As a result, when water leaks from the valve unit 430, it is possible to prevent the water leaking from the valve unit 430 from splashing onto the upper part (shell 400b) of the housing 400, and it is possible to prevent the water leaking from the valve unit 430 from leaking out of the equipment through the gap in the housing (the gap between the housing plate 400a and the shell 400b).

[0093] like Figure 5 and Figure 6 As shown, the toilet seat 200 is positioned along the upper surface 410a of the lower portion 410 in the front-back direction. Moreover, as described above, the valve unit 430 is positioned with its upper end along the upper surface 410a of the lower portion 410 in the front-back direction.

[0094] In this way, by lowering the upper end of the valve unit 430 from the rear to the front in a manner that extends towards the upper part 410a of the lower portion 410 in the rear-to-rear direction, and simultaneously setting the toilet seat 200 to extend towards the upper part 410a of the lower portion 410 in the rear-to-rear direction, heat from the toilet seat 200 can be transferred to the valve unit 430 more efficiently. This, in turn, more reliably prevents damage to the valve unit 430 due to freezing.

[0095] like Figure 4 As shown, the toilet seat 200 is positioned on the upper surface 410a of the lower portion 410 in the left-right direction. Moreover, as described above, the valve unit 430 is positioned on the upper surface 410a of the lower portion 410 in the left-right direction.

[0096] In this way, by lowering the upper end of the valve unit 430 from the center in the left-right direction towards the side along the upper part 410a of the lower portion 410 in the left-right direction, and simultaneously setting the toilet seat 200 to be positioned above the upper part 410a of the lower portion 410 in the left-right direction, heat from the toilet seat 200 can be transferred to the valve unit 430 more efficiently. This more reliably prevents damage to the valve unit 430 due to freezing.

[0097] like Figure 3 and Figure 6 As shown, the heat exchanger unit 440 is configured to be further rearward than the valve unit 430. More specifically, the front end of the heat exchanger unit 440 is located further rearward than the front end of the valve unit 430. Additionally, the rear end of the heat exchanger unit 440 is located further rearward than the rear end of the valve unit 430. In this example, the heat exchanger unit 440 is positioned between the control unit 405 and the valve unit 430 in the longitudinal direction. Furthermore, the vertical length H2 of the heat exchanger unit 440 is greater than the vertical length H1 of the valve unit 430.

[0098] In this way, by configuring the heat exchanger unit 440 further rearward than the valve unit 430, the heat exchanger unit 440 can be positioned in a location less restricted by height. Consequently, by making the vertical length H2 of the heat exchanger unit 440 greater than the vertical length H1 of the valve unit 430, the water storage capacity of the heat exchanger unit 440 can be increased.

[0099] Furthermore, by arranging the heat exchanger unit 440 between the control unit 405 and the valve unit 430 in the front-to-back direction, the distance between the control unit 405 and the valve unit 430 can be increased. This allows for more reliable suppression of water splashing from the valve unit 430 onto the control unit 405 when leakage occurs. Additionally, when the vertical length H2 of the heat exchanger unit 440 is greater than the vertical length H1 of the valve unit 430, the heat exchanger unit 440 becomes a wall, further reliably suppressing water splashing from the valve unit 430 onto the control unit 405.

[0100] like Figure 3 and Figure 6 As shown, the heat exchanger unit 440 is configured to be further rearward than the rear end of the heater 210 of the toilet seat 200. More specifically, the front end of the heat exchanger unit 440 is located further rearward than the rear end of the heater 210 of the toilet seat 200.

[0101] The control unit 405 performs freeze suppression control, for example, to prevent the heat exchanger unit 440 from freezing. Since the heat exchanger unit 440 is unlikely to freeze due to freeze suppression control, it is not necessary to utilize heat from the toilet seat 200 to suppress freezing, unlike the valve unit 430. Therefore, the heat exchanger unit 440 can also be configured to be located further rearward than the rear end of the heater 210 of the toilet seat 200. By configuring the heat exchanger unit 440 further rearward than the rear end of the heater 210 of the toilet seat 200, space for arranging the valve unit 430 under the toilet seat 200 is easily secured. This allows for efficient use of the space under the toilet seat 200, enabling a more compact housing 400.

[0102] like Figure 6 As shown, the front end of the heat exchanger unit 440 is located, for example, in the lower portion 410. By positioning the front end of the heat exchanger unit 440 in the lower portion 410, at least a portion of the heat exchanger unit 440 can be disposed in the lower portion 410. Therefore, by disposing of the heat exchanger unit 440 on the front side of the housing 400, the housing 400 can be further compacted.

[0103] like Figure 3 As shown, the connection portion 435 between the heat exchanger unit 440 and the valve unit 430 is disposed on the front side of the heat exchanger unit 440. In other words, the valve unit 430 is connected to the heat exchanger unit 440 on the front side of the heat exchanger unit 440.

[0104] In this way, by positioning the connection portion 435 between the heat exchanger unit 440 and the valve unit 430 at the front side of the heat exchanger unit 440, water leaking from the connection portion 435 can be prevented from splashing onto the control unit 405. In other words, by positioning the heat exchanger unit 440 between the connection portion 435 and the control unit 405, the heat exchanger unit 440 becomes a wall, thus preventing water leaking from the connection portion 435 from splashing onto the control unit 405.

[0105] like Figure 5 and Figure 6 As shown, the upper surface 410a of the lower portion 410 is, for example, a curved surface that convexes upward in the front-rear direction. The upper surface 410a of the lower portion 410 may also have multiple inclined surfaces in the front-rear direction. In this case, the upper surface 410a of the lower portion 410 is configured such that the angle of inclination relative to the horizontal plane increases in the forward direction.

[0106] By making the upper part 410a of the lower part 410 into a curved surface that convexes upward in the front-rear direction, the space of the lower part 410 can be further increased. As a result, it is easier to arrange the valve unit 430 in the lower part 410.

[0107] like Figure 5 and Figure 6 As shown, at least a portion of the valve unit 430 is configured, for example, to be closer to the rear than the central CL1 of the lower portion 410 in the front-rear direction. In other words, the central CL1 of the lower portion 410 in the front-rear direction overlaps with the valve unit 430 in the front-rear direction.

[0108] In this way, by configuring at least a portion of the valve unit 430 to be closer to the rear than the central CL1 in the front-rear direction of the lower portion 410, the valve unit 430 can be configured in a position that is less restricted by height.

[0109] Figure 9 It is a plan view showing a portion of the casing of the hygiene cleaning device involved in the schematic representation of the embodiment. Figure 10 (a) and Figure 10 (b) is a cross-sectional view of a portion of the housing of the hygienic cleaning device involved in the schematic representation of the embodiment. Figure 11 This is a perspective view showing a portion of the casing of the hygiene cleaning device involved in the schematic representation of the embodiment. Figure 9 , Figure 10 (a) Figure 10 (b) Figure 11 In the diagram, arrows indicate the flow of water on shell plate 400a. Figure 9In the diagram, the positions of valve unit 430, heat exchanger unit 440, control unit 405, and nozzle 473 are indicated by imaginary lines. Figure 10 (a) is based on Figure 9 The cross-sectional view along line D1-D2 shown. Figure 10 (b) is based on Figure 9 The cross-sectional view of line E1-E2 shown.

[0110] like Figure 9 , Figure 10 (a) Figure 10 (b) Figure 11 As shown, the casing 400 has a drainage path 415 on its inner bottom surface. The drainage path 415 is provided, for example, on the upper surface of the casing plate 400a. Water on the inner bottom surface of the casing 400 (the upper surface of the casing plate 400a) is drained to the toilet 800 through the drainage path 415.

[0111] like Figure 9 As shown, the drainage path 415 does not overlap with the control unit 405 in the vertical direction. The drainage path 415 has, for example, first to third regions 415a to 415c. At least a portion of the first region 415a overlaps with the valve unit 430 in the vertical direction. Water leaking from the valve unit 430 is discharged to the toilet 800 through the first region 415a. At least a portion of the second region 415b overlaps with the heat exchanger unit 440 in the vertical direction. Water leaking from the heat exchanger unit 440 is discharged to the toilet 800 through the second region 415b. At least a portion of the third region 415c overlaps with the nozzle 473 in the vertical direction. Water leaking from the nozzle 473 is discharged to the toilet 800 through the third region 415c.

[0112] Region 1 415a and Region 2 415b are located in front of the control unit 405. More specifically, the rear ends of Region 1 415a and Region 2 415b are located closer to the front than the front end of the control unit 405. Region 1 415a is located in front of Region 2 415b. Region 3 415c is located to the side of the control unit 405. Region 3 415c is located to the side of Region 1 415a and Region 2 415b. Region 3 415c is located closer to the center side in the left-right direction than Region 1 415a and Region 2 415b.

[0113] like Figure 10 As shown in (a), in the first region 415a of the drainage path 415, an inclined surface is provided that slopes downward from the ends in the left and right directions toward the center. Similarly, in the second region 415b, an inclined surface is provided that slopes downward from the ends in the left and right directions toward the center. Water in the first region 415a and the second region 415b flows along the inclined surface toward the center in the left and right directions.

[0114] In addition, such as Figure 10 As shown in (b), in the third region 415c of the drainage path 415, an inclined surface is provided that slopes downward from the rear to the front. Water in the third region 415c flows forward along the inclined surface.

[0115] like Figure 9 and Figure 11 As shown, a drain guide 416 is provided on the top of the shell plate 400a. The drain guide 416 is located in front of the valve unit 430. The drain guide 416 is, for example, a vertical surface (reinforcing rib) extending upward from the top of the shell plate 400a. The drain guide 416 prevents water on the shell plate 400a from flowing to a position closer to the front than the drain guide 416. In other words, the drain guide 416 guides water on the shell plate 400a towards the central side in the left-right direction.

[0116] like Figure 9 and Figure 10 As shown in (b), the casing 400 has a first drain outlet 417a and a second drain outlet 417b located at the bottom. The first drain outlet 417a and the second drain outlet 417b are, for example, located on the casing plate 400a. Water on the casing plate 400a is drained to the toilet bowl 800 through the first drain outlet 417a and the second drain outlet 417b. That is, when the sanitary cleaning device 100 is installed in the toilet bowl 800, the first drain outlet 417a and the second drain outlet 417b are located inside the opening of the basin 801. The first drain outlet 417a and the second drain outlet 417b may also be cutouts.

[0117] The first drain outlet 417a is a drain outlet located near the nozzle 473. The second drain outlet 417b is a drain outlet located near the valve unit 430. In other words, the distance between the first drain outlet 417a and the nozzle 473 is less than the distance between the second drain outlet 417b and the nozzle 473. Furthermore, the distance between the second drain outlet 417b and the valve unit 430 is less than the distance between the first drain outlet 417a and the valve unit 430.

[0118] In this way, by providing a second drain outlet 417b near the valve unit, water leaking from the valve unit 430 can be discharged from the second drain outlet 417b near the valve unit 430 even if it is not guided to the first drain outlet 417a near the nozzle 473. This shortens the drainage path 415 (first region 415a) from the valve unit 430 to the toilet 800, making it easier to discharge water leaking from the valve unit 430 to the toilet 800. Furthermore, because the drainage path 415 can be shortened, the vertical length of the housing 400 can be reduced, making the housing 400 more compact.

[0119] Figure 12It is a plan view of the hygiene cleaning device involved in the schematic representation of the implementation method. Figure 12 This is a plan view of the sanitary cleaning device 100 viewed from below. Figures 13-16 It is a cross-sectional view of the sanitary cleaning apparatus involved in the schematic representation of the implementation method. Figures 12-16 The middle part indicates the state of the toilet seat 200 being removed. Figure 12 , Figure 13 , Figure 15 , Figure 16 In the diagram, the position of the water supply hose 15 is indicated by an imaginary line. Additionally, Figure 12 In the diagram, an imaginary line is used to indicate the position of the through hole 810 of the toilet 800. Figure 13 Based on Figure 12 The cross-sectional view of line F1-F2 shown. Figure 14 Based on Figure 12 The cross-sectional view of line G1-G2 shown. Figure 15 Based on Figure 12 The cross-sectional view of line H1-H2 shown. Figure 16 Based on Figure 12 The cross-sectional view of line J1-J2 shown.

[0120] like Figures 12-16 As shown, the shell 400 has a recess 412 that is recessed upward from the bottom surface 400d. The bottom surface 400d of the shell 400 is the surface located at the lower end of the shell plate 400a. The bottom surface 400d of the shell 400 is, for example, the surface opposite the top of the toilet 800 when the sanitary cleaning device 100 is installed in the toilet 800.

[0121] like Figure 13 As shown, the recess 412 has a rearward or lateral side surface 412a and a top surface 412b. The top surface 412b of the recess 412 is the surface located at the upper end of the recess 412. The top surface 412b of the recess 412 is located closer to the top than the bottom surface 400d of the housing 400. The depth of the recess 412 is greater than the outer diameter R1 of the water supply hose 15. In other words, the vertical distance between the top surface 412b of the recess 412 and the bottom surface 400d of the housing 400 is greater than the outer diameter R1 of the water supply hose 15.

[0122] A water supply connection 420 is provided on the rearward or lateral side 412a of the recess 412. The water supply connection 420 opens rearward or laterally. That is, the water supply connection 420 opens in the horizontal direction. In this example, the water supply connection 420 is provided on the rearward-facing side 412a of the recess 412 and opens rearward. The water supply hose 15 is directly connected in the horizontal direction to the water supply connection 420, which opens in the horizontal direction.

[0123] In this way, by providing a recess 412 that extends upward from the bottom surface 400d on the housing 400, and placing the water supply connection 420 on the rearward or lateral side 412a of the recess 412, the water supply hose 15 can extend rearward or laterally from the water supply connection 420. Therefore, when the sanitary cleaning device 100 removed from the toilet 800 is temporarily placed on the floor or toilet 800, bending of the water supply hose 15 due to being caught between the floor and the housing 400 or between the toilet 800 and the housing 400 can be prevented. Furthermore, since the tilting of the housing 400 due to the reaction force of the water supply hose 15 can be prevented, temporary placement is easier. Furthermore, since a flexible water supply hose 15 is used, when the water supply hose 15 is inserted into the through hole 810 provided on the toilet bowl 800, even if the position of the through hole 810 deviates from the water supply connection 420, the water supply hose 15 can be handled while preventing bending. Moreover, since the water supply hose 15 can extend rearward or sideways from the water supply connection 420, the sanitary cleaning device 100 can be easily compacted in the vertical direction.

[0124] Furthermore, by directly connecting the water supply hose 15 to the water supply connection portion 420, which is open in the horizontal direction, it is not necessary to provide a water supply pipe component connecting the water supply hose 15 and the water supply connection portion 420. As a result, the number of parts can be reduced, and the cost can be lowered.

[0125] When the sanitary cleaning device 100 is installed in a toilet bowl having a through hole 810 extending vertically, the water supply hose 15, which extends horizontally from the water supply connection 420, is bent vertically and inserted into the through hole 810. Therefore, in this embodiment, the housing 400 has a hose storage portion 413 for storing a portion of the bendable water supply hose 15. The hose storage portion 413 has space for storing and bending the water supply hose 15 while it is installed in the toilet bowl 800 having the through hole 810, so that the water supply hose 15 does not extend to a position closer to the outside than the outer periphery of the housing 400.

[0126] In this way, by providing a hose storage section 413 on the housing 400 to accommodate a portion of the flexible water supply hose 15, the water supply hose 15 can be easily inserted into the through hole 810 of the toilet 800 regardless of its position. This allows for connection to the through holes 810 of various toilets 800. Furthermore, by connecting the water supply hose 15 horizontally to the water supply connection section 420, the height of the sanitary cleaning device 100 can be reduced. Additionally, by providing the hose storage section 413, when the sanitary cleaning device 100 is temporarily placed on the floor or toilet 800 after being removed from the toilet, bending of the water supply hose 15 due to being caught between the floor and the housing 400 or between the toilet 800 and the housing 400 can be prevented.

[0127] In this example, the hose retractor 413 is a recess 412. That is, the hose retractor 413 is provided on the outer side of the shell plate 400a. In an embodiment, the hose retractor 413 may also be provided on the inner side of the shell plate 400a. In addition, as described above, the water supply connection 420 is provided on the rearward or lateral side 412a of the recess 412.

[0128] In this way, by using the recess 412 that is recessed upward from the bottom surface 400d of the housing 400 as the hose storage part 413, and providing the water supply connection part 420 on the rearward or side side 412a of the recess 412, it is not necessary to connect the water supply hose 15 to the water supply connection part 420 inside the housing 400, so it is easier to connect the water supply hose 15 to the water supply connection part 420.

[0129] like Figure 12 As shown, the recess 412 is provided on the side of the shell 400. More specifically, the recess 412 is provided at a position that does not overlap with the center CL2 in the left-right direction of the shell 400. For example, when the shell 400 is divided into three equal regions in the left-right direction, the recess 412 is provided in the region that does not include the center CL2 in the left-right direction of the shell 400 (i.e., the side region).

[0130] In this way, by positioning the recess 412 at the center CL2 in the left-right direction, which does not overlap with the housing 400, interference between the recess 412 and components such as the nozzle 473 housed near the center CL2 in the left-right direction inside the housing 400 can be suppressed. Therefore, sufficient space can be provided in the recess 412 for handling the water supply hose 15.

[0131] like Figure 13As shown, the depth D2 of the recess 412 in the direction of the water supply connection 420 is greater than twice the outer diameter R1 of the water supply hose 15. In this example, the water supply connection 420 is oriented rearward. In this example, the depth D2 is the distance between the front end and the rear end of the recess 412. In an embodiment, the water supply connection 420 may also be oriented sideways (e.g., to the right). In this case, the depth D2 is the distance between the left end and the right end of the recess 412.

[0132] In this way, by making the depth D2 of the recess 412 in the direction of the water supply connection 420 greater than twice the outer diameter R1 of the water supply hose 15, sufficient space for processing the water supply hose 15 can be provided even when the water supply hose 15 is bent for processing.

[0133] like Figure 15 and Figure 16 As shown, the width W2 of the recess 412 widens towards the water supply connection 420. In this example, the water supply connection 420 faces rearward. In this example, the width W2 is the length of the recess 412 in the left-right direction. That is, in this example, the length in the left-right direction at the front end of the recess 412 is less than the length in the left-right direction at the rear end of the recess 412. More specifically, in this example, the recess 412 has: a front portion with a smaller length in the left-right direction; and a rear portion located behind the front portion with a greater length in the left-right direction than the front portion. In an embodiment, the water supply connection 420 may also face sideways. In this case, the width W2 is the length of the recess 412 in the front-rear direction.

[0134] By widening the width W2 of the recess 412 toward the water supply connection 420, sufficient space can be ensured for handling the water supply hose 15, while simultaneously reducing the size of the recess 412. This increases the space inside the housing 400 for arranging other parts. Furthermore, the housing 400 can be made more compact.

[0135] like Figure 12 As shown, the water supply connection 420 is positioned further forward than the center CL3 of the housing 400 in the front-rear direction. More specifically, the front end of the water supply connection 420 is located further forward than the center CL3 of the housing 400 in the front-rear direction. Additionally, the rear end of the water supply connection 420 is located further forward than the center CL3 of the housing 400 in the front-rear direction. Furthermore, the rear end of the water supply connection 420 can also be located further rearward than the center CL3 of the housing 400 in the front-rear direction. That is, the water supply connection 420 can also be positioned overlapping the center CL3 of the housing 400 in the front-rear direction.

[0136] By positioning the water supply connection 420 closer to the front than the center CL3 of the housing 400 in the front-rear direction, sufficient space can be ensured for bending the water supply hose 15 while preventing it from bending. Consequently, the water supply hose 15 can be easily handled through the through hole 810 of the toilet 800, which is positioned further back than the water supply connection 420.

[0137] like Figure 12 and Figure 15 As shown, the water supply connection 420 is located adjacent to the side end 400e of the housing 400. The distance in the left-right direction between the side end 400e of the housing 400 and the water supply connection 420 is, for example, 20 mm or less.

[0138] In this way, by positioning the water supply connection 420 adjacent to the side end 400e of the housing 400, the hose retractor 413 can be positioned close to the side end 400e of the housing 400. Therefore, when installed in a toilet 800 that does not have a through hole 810, sufficient space can be ensured for handling the water supply hose 15, while reducing the size of the hose retractor 413. This increases the space inside the housing 400 for arranging other parts. Furthermore, the housing 400 can be made more compact.

[0139] When the sanitary cleaning device 100 is installed on a toilet 800 having a through hole 810, for example, when the sanitary cleaning device 100 is installed on the toilet 800, the water supply connection 420 is positioned away from the opening of the through hole 810. More specifically, for example, when the sanitary cleaning device 100 is installed on the toilet 800, the water supply connection 420 is positioned in a vertical direction that does not overlap with the through hole 810.

[0140] For example, when the sanitary flushing device 100 is installed in the toilet bowl 800, the water supply connection 420 is positioned closer to the front than the through hole 810. Additionally, for example, when the sanitary flushing device 100 is installed in the toilet bowl 800, the water supply connection 420 is positioned closer to the side (side end 400e side) than the through hole 810. The distance between the water supply connection 420 and the through hole 810 is, for example, greater than twice the outer diameter R1 of the water supply hose 15.

[0141] like Figures 12-16 As shown, a cover member 419 is provided on the side of the recess 412. The cover member 419 is configured to be removable. In this example, the cover member 419 covers the rear and sides of the recess 412. The cover member 419 may also cover only the sides of the recess 412, for example.

[0142] For example, when the toilet bowl 800 does not have a through hole 810 for inserting the water supply hose 15, the water supply hose 15 can be handled on the side of the recess 412 by removing the cover member 419. On the other hand, when the toilet bowl 800 has a through hole 810 for inserting the water supply hose 15, the side of the recess 412 can be hidden by installing the cover member 419. As a result, the water supply connection part 420 can be kept out of the user's sight, which improves the appearance design.

[0143] Furthermore, by removing the cover component 419, the hose storage portion 413 (recess 412) is opened to at least one side or rearward. That is, the housing 400 is not provided in the direction of the water supply connection portion 420.

[0144] In this way, by opening the hose retractor 413 towards at least one of the rear or side, the water supply hose 15 can extend towards at least one of the rear or side of the hose retractor 413. Therefore, even when the toilet 800 does not have a through hole 810, the water supply hose 15 can be handled while preventing bending. That is, the sanitary cleaning device 100 can be installed in both toilets 800 with and without through holes 810.

[0145] Furthermore, since the water supply hose 15 can extend to at least one side or rear of the recess 412, sufficient space can be ensured for handling the water supply hose 15, while the recess 412 can be reduced in size. This increases the space inside the housing 400 for arranging other parts. Additionally, the housing 400 can be made more compact.

[0146] like Figures 12-16 As shown, the sanitary cleaning device 100 also includes a guide portion 414 that guides the water supply hose 15 in the correct direction. The guide portion 414, for example, restricts the upward or left-right movement of the water supply hose 15, thereby guiding the water supply hose 15 in the correct direction.

[0147] In this way, by providing a guide portion 414 to guide the water supply hose 15 in the correct direction, it is possible to prevent the flexible water supply hose 15 from bending when connected to the water supply connection portion 420.

[0148] like Figure 13 and Figure 15 As shown, the guide portion 414 includes, for example, the upper surface 412b of the recess 412. In other words, the upper surface 412b of the recess 412 functions as the guide portion 414.

[0149] In this way, by using the upper part 412b of the recess 412 to guide the water supply hose 15, the water supply hose 15 is prevented from extending upward and bending of the water supply hose 15 can be suppressed.

[0150] like Figure 15 As shown, the guide portion 414 includes: a cover member 419; and a side surface 412c of a recess 412 opposite to the cover member 419. In other words, the cover member 419 and the side surface 412c of the recess 412 function as, for example, the guide portion 414.

[0151] In this way, by using the cover member 419 provided on the side of the recess 412 and the side surface 412c of the recess 412 opposite to the cover member 419 to guide the water supply hose 15, it can be easily connected to the water supply connection part 420 even when the water supply hose 15 is bent in the left and right direction for connection.

[0152] like Figure 13 , Figure 14 , Figure 16 As shown, the control unit 405 is disposed inside the housing 400 above the recess 412. More specifically, the lower end of the control unit 405 is located closer to the upper part 412b of the recess 412. In addition, the control unit 405 is positioned to overlap the recess 412 in the vertical direction.

[0153] In this way, by distributing the control unit 405 inside the housing 400 above the recess 412, it is possible, for example, to position the control unit 405 higher than the valve unit 430. Thus, for example, in the event of leakage from the valve unit 430, it is possible to prevent water leaking from the valve unit 430 from splashing onto the control unit 405.

[0154] As described above, according to the embodiment, a sanitary cleaning device 100 can be provided that can prevent the water supply hose 15 from bending or the housing 400 from tilting when it is temporarily placed after being removed from the toilet 800, while also being easy to make compact in the vertical direction.

[0155] The embodiments of the present invention have been described above. However, the present invention is not limited to the contents described above. Regarding the foregoing embodiments, as long as they possess the features of the present invention, techniques for appropriate design modifications by those skilled in the art are also included within the scope of the present invention. For example, the shape, size, material, configuration, and installation method of the various elements included in the sanitary cleaning device 100 are not limited to the illustrated contents, but can be appropriately modified. Furthermore, as long as it is technically feasible, the elements of the aforementioned embodiments can be combined, and any combination techniques that include the features of the present invention are also included within the scope of the present invention.

Claims

1. A hygienic washing device, comprising: The nozzle sprays water into specific areas of the body. A valve unit is installed on the pipeline between the water supply source and the nozzle and has a solenoid valve. The housing contains the nozzle and the valve unit; A flexible water supply hose is used to supply water from a water source to the interior of the housing. and a water supply connection part, connecting the water supply hose and the valve unit, characterized in that, The shell has a recess that extends downwards from the bottom. The water supply connection is located on the rearward or lateral side of the recess.

2. The sanitary cleaning device according to claim 1, characterized in that, The depth of the recess in the water supply connection is greater than twice the outer diameter of the water supply hose.

3. The sanitary cleaning device according to claim 1 or 2, characterized in that, The recess opens toward at least one of the rear or side.

4. The sanitary cleaning device according to claim 1 or 2, characterized in that, The width of the recess increases toward the direction of the water supply connection.

5. The sanitary cleaning device according to claim 1 or 2, characterized in that, It also has a detachable cover component disposed on the side of the recess.

6. The sanitary cleaning device according to claim 1 or 2, characterized in that, It also includes a control unit for controlling the operation of the nozzle and the valve unit. Inside the housing, the control unit is positioned above the recess. The valve unit is configured to be closer to the front than the control unit.

7. The sanitary cleaning device according to claim 1, characterized in that, It also includes a toilet seat, the interior of which is equipped with a heater for heating the toilet seat. At least a portion of the valve unit overlaps the heater of the toilet seat in the vertical direction.

8. The sanitary cleaning device according to claim 7, characterized in that, The valve unit includes a filter, a solenoid valve, and a reduced-bore section located between the filter and the solenoid valve. At least one of the filter, the solenoid valve, and the reduced diameter section overlaps the heater of the toilet seat in the vertical direction.

9. The sanitary cleaning device according to claim 1, characterized in that, The vertical length of the valve unit is less than the longitudinal length of the valve unit and less than the lateral length of the valve unit. The valve unit is disposed at the lower part of the front of the housing.

10. The sanitary cleaning device according to claim 6, characterized in that, It also includes a heat exchanger unit, which is configured to be closer to the rear than the valve unit, and the vertical length of the heat exchanger unit is greater than the vertical length of the valve unit. The heat exchanger unit is arranged in the front-to-back direction between the control unit and the valve unit.

11. The sanitary cleaning device according to claim 10, characterized in that, The heat exchanger unit is configured to be located further back than the rear end of the heater of the toilet seat.

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