CN113939633B - Sanitary cleaning device - Google Patents

Abstract

The device is provided with: a main body portion; and various functional components disposed in the main body portion, including a nozzle device for cleaning a human body. And, the main body part includes: a flat plate-shaped base portion that forms a bottom portion of the main body portion; a rear case (270) that forms a rear part of the main body; and a front case that constitutes a part of the front, upper, and side surfaces of the main body. Thus, when various functional components are mounted on the base, the rear case (270) and the front case can be removed, so that a sanitary washing device with improved mounting workability can be provided.

Description

Sanitary cleaning device

Technical Field

The present disclosure relates to a sanitary washing device.

Background

Conventionally, such a sanitary washing apparatus has various functional components such as a washing nozzle, and the various functional components are accommodated in a main body portion which is fixed to a toilet seat.

The main body of patent document 1 is configured as a two-part structure, i.e., a lower base portion and an upper cover portion. The base has a bottom and a peripheral wall portion rising upward along the entire periphery of the bottom. The cover portion has an upper portion and a peripheral wall portion continuous along the entire periphery of the upper portion. The cover portion is fitted and fixed in such a manner as to cover the base portion.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 08-105096

Disclosure of Invention

However, since the base portion of the main body portion of patent document 1 has a peripheral wall portion at the entire periphery, there is a problem in that workability of an attaching work of various functional components to the base portion or a replacement work at the time of maintenance of various functional components is poor.

The present disclosure is an invention for solving the problems of patent document 1, and provides a sanitary washing apparatus capable of improving the workability of mounting various functional components.

The sanitary washing device of the present disclosure comprises: a main body portion; and various functional components disposed in the main body, including a nozzle device for cleaning a human body, the main body including: a flat plate-shaped base portion that forms a bottom portion of the main body portion; a rear case constituting a rear portion of the main body and a part of a side surface; and a front case that constitutes a part of the side surface, an upper surface, and a front portion of the main body portion.

The sanitary washing device can improve the mounting workability of various functional components to a base.

Drawings

Fig. 1 is an external perspective view of the sanitary washing apparatus according to embodiment 1.

Fig. 2 is an external perspective view of a main part of the sanitary washing apparatus.

Fig. 3 is a plan view showing a state in which the front cover and the rear cover are detached from the main body of the sanitary washing apparatus.

Fig. 4 is a perspective view showing a state in which the front cover is detached from the main body of the sanitary washing apparatus.

Fig. 5 is a perspective view showing a state in which the rear cover is detached from the main body of the sanitary washing apparatus.

Fig. 6 is a perspective view of the base of the sanitary washing apparatus.

Fig. 7 is a main part sectional view of the sanitary washing apparatus.

Fig. 8 is a main part sectional view of the sanitary washing apparatus.

Fig. 9 is a main part sectional view of the sanitary washing apparatus.

Fig. 10 is a main part sectional view of the sanitary washing apparatus.

Fig. 11 is a perspective view of a main part of the sanitary washing apparatus.

Fig. 12 is a perspective view showing a main part of a damper mechanism of the sanitary washing apparatus.

Fig. 13 is a perspective view showing a main part of a damper mechanism of the sanitary washing apparatus.

Fig. 14 is a main part sectional view showing a damper mechanism of the sanitary washing apparatus.

Fig. 15 is a perspective view showing a main part of a seating detection unit of the sanitary washing device.

Fig. 16 is a perspective view showing a main part of a seating detection portion of the sanitary washing device.

Fig. 17 is a perspective view showing a main part of a seating detection unit of the sanitary washing device.

Fig. 18 is a perspective view showing the back surface of the main body of the sanitary washing apparatus.

Fig. 19 is a main part sectional view of the sanitary washing apparatus.

Fig. 20 is a perspective view of a main part of the sanitary washing apparatus in a state where a toilet cover is opened.

Fig. 21 is a perspective view of a main part of the sanitary washing apparatus in a state where a toilet cover is opened.

Fig. 22 is a perspective view of a main part of the sanitary washing apparatus in a state where a front cover is detached.

Fig. 23 is a main part sectional view showing the periphery of the side operation part of the sanitary washing apparatus.

Fig. 24 is a perspective view of a side operation part of the sanitary washing apparatus.

Fig. 25 is an exploded perspective view of a side operation part of the sanitary washing apparatus.

Fig. 26 is a sectional view of a side operation part of the sanitary washing apparatus.

Fig. 27 is a cross-sectional view around the heat exchanger of the sanitary washing apparatus.

Fig. 28 is a perspective view of a water supply unit of the sanitary washing apparatus.

Fig. 29 is a sectional view of the water supply unit of the sanitary washing apparatus.

Fig. 30 is a sectional view of a vacuum interrupter of a water supply unit of the sanitary washing apparatus.

Fig. 31 is a sectional view of a vacuum interrupter of the water supply unit of the sanitary washing apparatus.

Fig. 32 is a sectional view of the water supply unit of the sanitary washing apparatus.

Fig. 33 is a sectional view of a vacuum interrupter of the water supply unit of the sanitary washing apparatus.

Fig. 34 is a sectional view of a vacuum interrupter of the water supply unit of the sanitary washing apparatus.

Fig. 35 is a sectional view of the water supply unit of the sanitary washing apparatus.

Fig. 36 is a sectional view of a vacuum interrupter of the water supply unit of the sanitary washing apparatus.

Fig. 37 is a sectional view of a vacuum interrupter of the water supply unit of the sanitary washing apparatus.

Fig. 38 is a perspective view of a heat exchanger of the sanitary washing apparatus.

Fig. 39 is a perspective view of the heat exchanger in a state where the hot water module is removed from the sanitary washing apparatus.

Fig. 40 is an exploded perspective view of the heat exchanger of the sanitary washing apparatus.

Fig. 41 is an exploded perspective view of the heat exchanger of the sanitary washing apparatus.

Fig. 42 is a perspective view of a flow sensor of the heat exchanger of the sanitary washing apparatus.

Fig. 43 is a sectional view of a flow sensor of the heat exchanger of the sanitary washing apparatus.

Fig. 44 is a sectional view of a flow sensor of the heat exchanger of the sanitary washing apparatus.

Fig. 45 is an exploded perspective view of the heat exchanger of the sanitary washing apparatus.

Fig. 46 is an exploded perspective view of the heat exchanger of the sanitary washing apparatus.

Fig. 47 is a sectional view of the heat exchanger of the sanitary washing apparatus.

Fig. 48 is a main part sectional view of the heat exchanger of the sanitary washing apparatus.

Fig. 49 is a main part sectional view of the heat exchanger of the sanitary washing apparatus.

Fig. 50 is a main part sectional view of the heat exchanger of the sanitary washing apparatus.

Fig. 51 is a perspective view of a water pump of the sanitary washing apparatus.

Fig. 52 is a perspective view of the water pump of the sanitary washing apparatus.

Fig. 53 is an exploded perspective view of the water pump of the sanitary washing apparatus.

Fig. 54 is a perspective view of the water pump of the sanitary washing apparatus.

Fig. 55 is a perspective view of the water pump of the sanitary washing apparatus.

Fig. 56 is an exploded perspective view of the water pump of the sanitary washing apparatus.

Fig. 57 is a sectional view of the water pump of the sanitary washing apparatus.

Detailed Description

(insight underlying the present disclosure, etc.)

When the present disclosure is conceived, the technology relating to the main body of the sanitary washing apparatus is configured as a two-divided structure of a lower base portion and an upper cover portion, the base portion having a bottom portion and a peripheral wall portion rising upward along the entire peripheral edge of the bottom portion. The cover portion has an upper portion and a peripheral wall portion continuous along the entire periphery of the upper portion, and is fitted and fixed so as to cover the base portion.

Since the base portion of the main body portion has a peripheral wall portion on the entire periphery, there is a problem in that workability of an attaching work of various functional components to the base portion or a replacement work at the time of maintenance of various functional components is poor.

The inventors have formed the subject matter of the present disclosure in order to solve this problem.

Accordingly, the present disclosure provides a sanitary washing apparatus including: a main body portion; and various functional components disposed in the main body, including a nozzle device for cleaning a human body, the main body including: a flat plate-shaped base portion that forms a bottom portion of the main body portion; a rear case constituting a rear portion of the main body and a part of a side surface; and a front case that constitutes a part of the side surface, an upper surface, and a front portion of the main body portion.

Hereinafter, embodiments will be described in detail with reference to the drawings.

Furthermore, the drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter recited in the claims in accordance with the drawings and the following description.

(embodiment 1)

As shown in fig. 1, the sanitary washing apparatus 100 is configured with a main body 200, a toilet seat 300, and a toilet lid 320 as main components. The main body 200, the toilet seat 300, and the toilet cover 320 are integrally formed and provided on the upper surface of the toilet 110.

A side operation portion 210 is provided on the right side portion of the main body 200 so as to protrude forward, and a plurality of switches and display lamps for operating and setting the functions of the sanitary washing apparatus 100 are provided.

In the present embodiment, the arrangement of the components will be described with the installation side of the main body 200 of the sanitary washing apparatus 100 being the rear, the installation side of the toilet seat 300 being the front, the right being the right, the front, and the left being the left.

As shown in fig. 3 to 5, the main body 200 includes, from the right: the water supply unit 400, the heat exchanger 500, the water pump 600, the nozzle device 700, the drying device 220 for partially drying, the deodorizing device 230 for deodorizing the odor during defecation, and the like are provided with a control unit or the like for controlling each function of the sanitary washing device 100 at a position above the heat exchanger 500. A washing water flow path (not shown) is formed so that washing water flows from the water supply unit 400 to the nozzle device 700. The water supply unit 400 or a tap water pipe connected thereto is a supply source of the washing water.

In the present embodiment, the water supply unit 400, the heat exchanger 500, the water pump 600, the nozzle device 700, the drying device 220, the deodorizing device 230, and the control unit will be referred to as various functional components hereinafter.

In addition, various functional components can be added and reduced as necessary.

< Main body Structure >

The main body 200 is composed of a base 250 constituting a bottom surface, a rear case 270 constituting a part of a rear and side surfaces, and a front case 290 constituting a part of a front, upper and side surfaces.

A convex portion 251 that gradually narrows as the width from the side surface to the back surface is formed in the base 250. A groove 271 is formed in the rear case 270, which gradually narrows in width from the side surface to the rear surface. Here, the convex portion 251 of the base 250 and the groove portion 271 of the rear case 270 constitute a concave-convex fitting portion formed in the front-rear direction.

The rear case 270 is assembled to the base 250 by sliding from the rear to the front of the base 250. When the rear case 270 is slidably assembled, the rear case 270 is slid by using the insertion portions of the groove 271 and the projection 251 as guides in a state in which the projection 251 is inserted into the groove 271.

Thus, the workability of assembling the rear case 270 to the base 250 improves. In addition, in a state where the rear case 270 is mounted on the base 250, the groove 271 and the convex portion 251 form a zigzag gap between the inside and the outside of the main body 200, so that the penetration of the liquid into the inside of the main body 200 can be suppressed.

A part of the bottom of the rear case 270 extends to a position below the base 250, and is screwed from the rear case 270 side at a position where the bottom of the base 250 overlaps the bottom of the rear case 270.

The front housing 290 is assembled from the front side of the base 250. In a state where the front case 290 is assembled to the base 250, the side surfaces of the front case 290 abut on the outer sides of the side surfaces of the rear case 270, and the occurrence of gaps in the side surfaces of the front case 290 and the rear case 270 is suppressed.

As shown in fig. 10, a groove 252 having a width gradually narrowing from the side surface to the front surface is formed in the base 250. A convex portion 291 whose width gradually narrows from the side surface to the front surface is formed in the front case 290.

The front case 290 is assembled to the base 250 by sliding from the front to the rear of the base 250. When front case 290 is slidably assembled, front case 290 is slid by using the insertion portions of groove 252 and projection 291 as guides in a state where projection 291 is inserted into groove 252.

Thus, the workability of assembling the front housing 290 to the base 250 improves. In addition, in a state where the front case 290 is mounted on the base 250, the groove 252 and the projection 291 form a zigzag shape in a gap between the inside and the outside of the main body 200, so that the penetration of the liquid into the inside of the main body 200 can be suppressed.

As shown in fig. 8, a front end surface 270a of the rear case 270 is formed to extend in the horizontal direction toward the front. The rear end of the front case 290 has a clamping portion 290a in the shape of japanese kana "コ" that clamps the front end face 270a of the rear case 270, and clamps the front case 290 from the front. Thereby, the clamping portion 290a clamps the front end surface 270a of the rear case 270, and a gap is prevented from being generated between the front case 290 and the rear case 270. The upper surface of the front case 290 is formed to be curved toward the rear surface of the rear case 270, and in a state where the front case 290 is assembled, the upper surface of the front case 290 is gently connected toward the rear surface of the rear case 270, constituting a part of the rear portion of the main body 200. The front housing 290 is screw-fixed to the rear housing 270 from the rear side.

This makes it possible to make the joint between front case 290 and rear case 270 inconspicuous when viewed from the front, and to suppress deterioration of the aesthetic appearance. In addition, when the liquid is dropped onto the upper surface of the main body 200, the liquid may be dropped toward the rear case without entering the joint between the front case 290 and the rear case 270.

As shown in fig. 10, the inclined surface 240 forming the lower part of the nozzle device 700 is formed to have an inclination corresponding to the inclination of the nozzle device 700, and is formed of the front case 290 and the base 250, and is fitted on the inclined surface 240. The engagement portion of the inclined surface 240 is located at an upper position in the toilet bowl of the toilet 110.

In the inclined surface 240, a structure formed in the front case 290 is considered, but in this structure, since the fitting portion between the front case 290 and the base 250 is located above the toilet 110, there is a possibility that the upper surface of the toilet 110 may be contaminated when water is immersed in the fitting portion. In addition, in the case where the fitting portion does not have a waterproof structure, the possibility of contaminating the upper surface of the toilet 110 further increases.

In the present embodiment, when water leaks from the nozzle device 700 in the main body 200, water is discharged into the bowl of the toilet 110 along the inclined surface 240. Even when water enters the fitting portion between the front housing 290 and the base 250, the fitting portion is located in the toilet 110, and thus the surrounding area is not contaminated. The fitting portion is formed by fitting the groove 252 formed in the base 250 and the projection 291 formed in the front case 290, so that water is less likely to enter, and cleaning performance can be improved.

The same effect can be expected even in a structure in which the main body 200 is attached obliquely rearward.

Since the front lower portion of the main body 200 is formed of the front case 290, the cleaning workability can be improved even when sewage is attached. Further, if a water removal rib is formed to remove the sewage attached to the front case 290, the water discharge into the toilet 110 can be further improved.

A rib 253 is formed on the bottom surface of the base 250 so as to protrude upward at a front end portion on the right side of the nozzle device 700, and at a front position of the water supply unit 400 and the heat exchanger 500. When water leaks from the water circuit structure on the right side of the nozzle device 700, the leaked water is guided to the inclined surface 240 by the rib 253 and discharged into the toilet 110.

The front of the inclined surface 240 is covered with a nozzle cover (not shown), but the leaked water is discharged from the periphery of the nozzle cover, and water can be discharged without providing a dedicated water outlet. By providing the nozzle cover, the irregularities of the front portion of the main body 200, which have the greatest bounce of the sewage, can be eliminated, and the cleaning performance can be improved.

< damper mechanism >

In the present embodiment, the toilet seat 300 and the toilet lid 320 are manually opened and closed, and a damper mechanism is provided to smoothly close the toilet seat 300 and the toilet lid 320.

Fig. 12 to 14 show a damper mechanism. The damper mechanism 241 includes a toilet seat damper 242 and a toilet cover damper 243, and the toilet seat 300 is attached to the toilet seat damper 242 and the toilet cover 320 is attached to the toilet cover damper 243.

The toilet seat damper 242 and the toilet cover damper 243 are fixed by fitting a plurality of locking claws 245 provided in the damper mounting portion 244. The damper mounting portion 244 is fixed to the upper left portion of the rear housing 270.

The toilet seat damper 242 and the toilet cover damper 243 are configured to be fitted to the damper mounting portion 244 by the locking claw 245, but it is conceivable that the toilet seat damper 242 or the toilet cover damper 243 is detached from the locking claw 245 and detached from the damper mounting portion 244 during long-term use.

In the present embodiment, a drop preventing projection 246 that abuts against the toilet seat damper 242 and the toilet cover damper 243 is provided to protrude from the rear case 270 toward the toilet seat damper 242 and the toilet cover damper 243. Even when the toilet seat damper 242 or the toilet cover damper 243 is disengaged from the locking claw 245, the drop-off prevention projection 246 abuts against the toilet seat damper 242 or the toilet cover damper 243, and therefore the toilet seat damper 242 or the toilet cover damper 243 can be prevented from dropping off.

In the present embodiment, the toilet seat damper 242 and the toilet cover damper 243 are fixed to the damper mounting portion 244 by the locking claw 245, so that the workability of mounting is improved, and the fixing members such as screws are omitted, thereby reducing the material cost.

When the toilet seat damper 242 and the toilet cover damper 243 are to be firmly fixed to the damper attachment portion 244, a fixing method such as screw fixation may be used.

In the above-described embodiment, the damper mechanism is provided so as to smoothly close the toilet seat 300 and the toilet lid 320, but the toilet seat 300 and the toilet lid 320 may be opened and closed by a motor.

< detailed Structure of Main body portion >

As shown in fig. 15 to 17, a seating detection portion 272 is disposed in the toilet seat support portion 276 of the rear case 270. The seating detection unit 272 is a member for detecting that a human body is seated on the toilet seat 300.

The seating detection unit 272 receives the toilet seat shaft 301 of the toilet seat 300 at the toilet seat support unit 276, and when a person sits on the toilet seat 300, the toilet seat shaft 301 descends downward due to the weight of the person, and the seating detection unit 272 descends downward, thereby detecting the seating of the person.

As shown in fig. 18 and 19, a through hole 273 is formed in the rear right side Cheng Guan of the rear case 270, and a filter 274 for removing foreign matter from the tap water pipe is provided inside the through hole 273. The filter 274 can be removed from the through hole 273 in the rear surface of the rear case 270, and foreign matter adhering to the filter 274 can be removed.

As shown in fig. 20 and 21, stoppers 275 for limiting an opening angle of the toilet cover 320 when the toilet cover 320 is opened are provided at positions near the toilet cover rotation shaft 321 at both side surfaces of the rear housing 270. The stopper 275 is formed to extend from the side surface portion to the horizontal portion without generating a minute gap, so that it is easy to wipe even if dust is attached or the like is contaminated. The stopper 275 is also connected to the vertical portion and the horizontal portion in a rounded R shape, and has a structure in which cleaning performance is considered.

The structure of the side operation portion 210 and the attachment structure for attaching the side operation portion 210 to the main body portion 200 will be described with reference to fig. 22 to 26.

A mounting portion 211 is formed between the base 250 and the front case 290 on the right side surface of the main body 200. The side operation portion 210 is mounted on the mounting portion 211.

The side operation unit 210 includes: a lower case 212, an upper case 213, an operation substrate portion 214, and an operation sign 215. The handle substrate portion 214 includes a handle substrate 216 and a handle substrate case 217, and connects the handle substrate 216 and a main body substrate (not shown) by a lead 218.

The operation substrate portion 214 is screwed to the upper case 213, and a seal (not shown) is disposed between the operation portion substrate case 217 and the upper case 213. The lead 218 of the handle substrate 214 is routed through the hollow 219 formed by the lower case 212 to the base 250. Further, a rib (not shown) for fixing the lead 218 is disposed in the lower case 212, and a structure for preventing the lead from biting during assembly is employed.

After the claws are fitted (not shown), the upper case 213 and the lower case 212 are fastened to the lower case 212 from above the upper case 213 by screws, and the operation sign 215 is attached so as to cover the screws. The fitting portion between the lower case 212 and the upper case 213 forms a peripheral wall 225 in the upper case 213 so as to cover the abutting surface between the lower case 212 and the upper case 213 from the outer peripheral side. Thus, even when the liquid is caught by the side operation portion 210, the liquid can be prevented from entering the inside.

In the lower case 212, an attachment portion 221 for attaching to the attachment portion 211 is formed integrally with the lower case 212. On the base 250 side of the fitting portion 221, a groove 222 is formed to be fitted with the projection 251 of the base 250. A groove 223 into which the projection 292 formed on the front case 290 fits is formed on the front case 290 side of the mounting portion 221.

The fitting portion 221 is formed larger than the extension portion 224 extending from the lower case 212 toward the fitting portion 221 in the up-down direction and the front-rear direction, and is fitted to the base 250 and the front case 290 at a position closer to the outer periphery than the extension portion 224, thereby forming a part of the side wall of the main body 200. Since the fitting is performed at the outer peripheral position of the extension 224, even when the liquid drips from above, the liquid can be prevented from entering the main body 200 from the fitting portion. The extension 224 and the fitting 221 are curved therebetween, and the workability of cleaning is improved.

In a state where the mounting portion 221 is mounted on the mounting portion 211, the groove 222 is fitted to the convex portion 251 and the groove 223 is fitted to the convex portion 292, so that the gap between the inside and the outside is serrated, and the penetration of the liquid into the mounting portion 221 can be suppressed.

In the present embodiment, the side operation unit 210 is configured to operate various functions, but may be configured to operate by a remote control device. This structure enables the mounting plate having the receiving portion and the minimum operation switch to be mounted on the mounting portion 211 by the same mounting structure as that of the mounting portion 221. This makes it possible to cope with a plurality of models.

< base Structure >

The base 250 is provided with various functional components for performing the respective functions of the sanitary washing apparatus 100. The base 250 is provided with a mounting portion 254 for mounting various functional components.

As an example of the mounting portion, a mounting portion 254 of the heat exchanger 500 is shown in fig. 27. The mounting portion 254 of the heat exchanger 500 is an example, and other structures are possible.

The mounting portion 254 is formed of a locking piece 255 erected from the base portion 250 and a locking claw 256 formed on a side surface of the heat exchanger 500.

Since the shape, the height of the center of gravity, and the like of the various functional components are different, the shape and the like of the mounting portion 254 can be appropriately selected according to the various functional components.

The various functional components are transported on the belt conveyor, and are mounted on the base 250 by an automatic machine, and the locking piece 255 is engaged with the engagement claw 256, and fixed or temporarily fixed to prevent misalignment.

In manufacturing, the base 250 is placed on a tray on a belt conveyor and moved, and various functional components are fixed or temporarily fixed by the mounting portions 254 of the various functional components of the base 250 by an automatic machine. If various functional components are placed on the base 250, the base 250 on the tray is moved to a predetermined position, and the various functional components are screwed to the base 250 by a robot as needed.

The base 250 is formed in a flat plate shape, and there is no member covering the base 250, so that various functional components can be easily assembled and screwed by a robot.

The various functional components are fixed or temporarily fixed to the mounting portion 254 of the base 250, and the movement of the various functional components is prevented, so that the screw fixation can be performed by an automatic machine without being affected by vibration at the time of movement by the belt conveyor.

In the present embodiment, as various functional components mounted on the base 250 by an automatic machine, there are exemplified the side operation portion 210, the water supply unit 400, the heat exchanger 500, the nozzle device 700, the drying device 220, the deodorizing device 230, and the like.

In the present embodiment, as various functional components, a side operation unit 210, a water supply unit 400, a heat exchanger 500, a nozzle device 700, a drying device 220, and a deodorizing device 230 are provided from the right side of the main body 200, and the side operation unit 210, the water supply unit 400, the heat exchanger 500, the nozzle device 700, the drying device 220, and the deodorizing device 230 are fixed in this order.

In the above embodiment, the locking piece 255 is vertically erected upward from the base 250.

However, depending on the structure and shape of the various functional components, the locking piece 255 may be provided so as to stand upward in an inclined state with respect to the base 250. According to this configuration, in assembling by an automatic machine, it is preferable to incline a tray for mounting the base 250 when various functional components are mounted.

Further, as the mounting portion 254, the locking piece 255 is formed in the base portion 250, and the engagement claw 256 is formed in various functional members, but the engagement claw 256 may be formed in the base portion 250, and the engagement claw 256 may be formed in various functional members.

The attachment portion 254 may be configured to be capable of fixing or temporarily fixing various functional components to the base portion 250, and may be configured other than the locking piece 255 and the engagement claw 256.

In addition, various functional components have holding portions for holding the leads so as not to interfere with assembly. The lead is held by the holding portion before the assembly operation, so that the assembly is not hindered.

In the case where the control unit (not shown) is disposed on the right side of the nozzle device 700 and the drying device 220 and the deodorizing device 230 are disposed on the left side, a wiring member (not shown) is provided to support the lead wire at a position above the nozzle device 700 so that the lead wire does not contact the driving unit of the nozzle device 700. The wiring member is fixed to the housing of the control section and the drying device 220. Thus, the nozzle device 700 is not in contact with the lead wire during driving, and easy assembly can be realized.

< Water supply Unit >

A water supply unit 400 is disposed at the rightmost position of the base 250. The water supply unit 400 is connected to a tap water pipe via a hose (not shown) outside the main body 200.

The water supply unit shown in fig. 28 to 31 includes a water pump 600 and has an open water path 405A, and is described below as a water supply unit 400A.

The water supply unit 400A includes: a filter 401A, a constant flow valve 402A, a water stop solenoid valve 403A, a vacuum circuit breaker 404A, and an open waterway 405A.

Purified water flowing through a tap water pipe (not shown) is supplied as washing water to the filter 401A. The filter 401A removes trash, impurities, and the like contained in the washing water.

The cleaning water from which the trash, impurities, and the like have been removed by the filter 401A is supplied to the water stop solenoid valve 403A. The water stop solenoid valve 403A switches a supply state in which the cleaning water is supplied to the downstream side. The operation of the water stop solenoid valve 403A is controlled by a control unit (not shown). If the washing water is supplied from the water stop solenoid valve 403A to the constant flow valve 402A, the washing water is supplied to the vacuum interrupter 404A. The constant flow valve 402A controls the flow rate of the washing water flowing in the water supply unit 400A to be constant.

The vacuum interrupter 404A includes: a vacuum adapter 406A, a vacuum lid 407A covering the vacuum adapter 406A, and a vacuum break valve 408A supported between the vacuum adapter 406A and the vacuum lid 407A.

The vacuum adapter 406A has: an inflow port 409A into which the cleaning water from the constant flow valve 402A flows, an outflow port 410A toward the main waterway, and an outflow port 411A toward the open waterway 405A. The vacuum lid 407A is provided with an air inlet 412A.

The water supply unit 400 flows the washing water supplied from the inflow port 409A to the outflow port 410A toward the main waterway and the outflow port 411A toward the open waterway 405A. The wash water supplied to the outflow port 410A of the main water channel flows downstream by the output of the water pump 600 disposed downstream. The washing water not supplied to the outflow port 410A is guided to the open water path 405A from the outflow port 411A, and is discharged into the toilet.

A flow sensor 570, a heat exchanger 500, and the like are disposed upstream of the water pump 600 in the main water path. The flow resistance of the flow sensor 570, the heat exchanger 500, and the like is large. Therefore, in the structure in which the washing water flows downstream only by the output of the water pump 600, the load on the water pump 600 is large.

In the present embodiment, by providing the fixed orifice 413C on the open waterway side, a water pressure corresponding to the flow path resistance of the flow sensor 570, the heat exchanger 500, and the like can be applied to the outflow port 410A toward the main waterway, and the load on the water pump 600 can be suppressed.

Further, the smaller the purge flow rate set by the user, the larger the flow rate passing through the fixed orifice 413C, and the larger the water pressure applied to the outflow port 410 of the main water path, and the larger the water pressure applied to the inlet of the water pump 600, the pulsation of the purge water flowing out from the nozzle device 700 can be eliminated, and the more gentle purge water can be provided. Conversely, the more the washing flow rate set by the user, the smaller the flow rate passing through the fixed orifice 413C, and the smaller the water pressure applied to the outflow port 410 of the main water path, and the smaller the water pressure applied to the inlet of the water pump 600, the stronger the washing water can be supplied without canceling the pulsation of the washing water flowing out from the nozzle device 700.

Since the vacuum break valve 408 is normally pushed upward by the water pressure of the cleaning water, the vacuum interrupter 404 closes the flow path to the air inlet 412, but when the upstream side becomes negative pressure, the vacuum break valve 408 is lowered, and the outside air is sucked from the air inlet 412 to release the negative pressure on the upstream side, so that the risk of backflow of the sewage from the nozzle device 700 or the open water path can be prevented.

In the above-described embodiment of the water supply unit, the water pump 600 may be omitted.

The water supply unit shown in fig. 32 to 34 is a water supply unit without the water pump 600, and will be described below as a water supply unit 400B.

The water supply unit 400B includes: a filter 401B, a water stop solenoid valve 403B, a pressure reducing valve 402B, a vacuum circuit breaker 404B, and an open waterway 405B.

Purified water flowing through a tap water pipe (not shown) is supplied as washing water to the filter 401B. The filter 401B removes trash, impurities, and the like contained in the washing water.

The cleaning water from which the trash, impurities, and the like have been removed by the filter 401B is supplied to the water stop solenoid valve 403B. The water stop solenoid valve 403B switches a supply state in which the cleaning water is supplied to the downstream side. The operation of the water stop solenoid valve 403B is controlled by a control unit (not shown). If the washing water is supplied from the water stop solenoid valve 403B to the pressure reducing valve 402B, the pressure of the washing water flowing in the water supply unit 400B is reduced to a constant pressure by the pressure reducing valve 402B.

The vacuum interrupter 404B includes: a vacuum adapter 406B, a vacuum lid 407B covering the vacuum adapter 406B, and a vacuum break valve 408B supported between the vacuum adapter 406B and the vacuum lid 407B.

The vacuum adapter 406B has: an inflow port 409B into which the washing water from the pressure reducing valve 402B flows, an outflow port 410B toward the main waterway, and an outflow port 411B toward the open waterway. The vacuum lid 407B is provided with an air inlet 412B.

The vacuum interrupter 404B is disposed downstream of the pressure reducing valve 402B, and the washing water depressurized to a constant pressure by the pressure reducing valve 402B is supplied from the inflow port 409B into the vacuum interrupter 404B and flows to the outflow port 410B.

Normally, the vacuum break valve 408B is pushed upward by the water pressure of the cleaning water, and thus the vacuum interrupter 404B closes the flow path to the air inlet 412B. When the upstream side is negative pressure, the vacuum break valve 408B is lowered, and external air is sucked from the air inlet 412B to release the negative pressure on the upstream side, so that the risk of backflow of sewage from the nozzle device 700 or the open water path can be prevented.

In the above-described embodiment of the water supply unit, a configuration in which a pump and a pressure reducing valve are added can be considered.

The water supply unit shown in fig. 35 to 37 is a water supply unit to which a water pump 600 and a pressure reducing valve 402C are added, and will be described below as a water supply unit 400C.

The water supply unit 400C includes: a filter 401C, a water stop solenoid valve 403C, a pressure reducing valve 402C, a vacuum circuit breaker 404C, and an open waterway 405C.

Purified water flowing through a tap water pipe (not shown) is supplied as washing water to the filter 401C. The filter 401C removes trash, impurities, and the like contained in the washing water.

The cleaning water from which the trash, impurities, and the like have been removed by the filter 401C is supplied to the water stop solenoid valve 403C. The water stop solenoid valve 403C switches a supply state in which the cleaning water is supplied to the downstream side. The operation of the water stop solenoid valve 403C is controlled by a control unit (not shown). If the washing water is supplied from the water stop solenoid valve 403C to the pressure reducing valve 402C, the pressure of the washing water flowing in the water supply unit 400C is reduced to a constant pressure by the pressure reducing valve 402C.

The vacuum interrupter 404C includes: a vacuum adapter 406C, a vacuum lid 407C covering the vacuum adapter 406C, and a vacuum break valve 408C supported between the vacuum adapter 406C and the vacuum lid 407C.

The vacuum adapter 406C has: an inflow port 409C into which the washing water from the pressure reducing valve 402C flows, an outflow port 410C toward the main waterway, and an outflow port 411C toward the open waterway. The vacuum lid 407C is provided with an air inlet 412C.

The vacuum interrupter 404C is disposed downstream of the pressure reducing valve 402C. The purge water is depressurized to a constant pressure by the depressurization valve 402C, is supplied from the inflow port 409C into the vacuum interrupter 404C, is further depressurized by passing through the fixed orifice 413C, and flows to the outflow port 410C.

The smaller the washing flow rate set by the user, the smaller the flow rate passing through the fixed orifice 413C, and the larger the water pressure applied to the outflow port 410C, and the larger the water pressure applied to the inlet of the water pump 600, the pulsation of the washing water flowing out of the nozzle device 700 can be eliminated, and the milder washing water can be supplied. Conversely, the more the washing flow rate set by the user, the more the flow rate passing through the fixed orifice 413C, and the smaller the water pressure applied to the outflow port 410C, and the smaller the water pressure applied to the inlet of the water pump 600, the stronger the washing water can be supplied without canceling the pulsation of the washing water flowing out from the nozzle device 700.

Normally, the vacuum break valve 408C is pushed upward by the water pressure of the cleaning water, and thus the vacuum interrupter 404C closes the flow path to the air inlet 412C. When the upstream side is negative pressure, the vacuum break valve 408C is lowered, and external air is sucked from the air inlet 412C to release the negative pressure on the upstream side, so that the risk of backflow of sewage from the nozzle device 700 or the open water path can be prevented.

Even in the case where the flow of the sewage is about to be reversed from the nozzle device 700, the flow path is reduced by the fixed orifice 413C by the sewage flowing in from the outflow port 410C, so that the reverse flow of the sewage can be suppressed.

< Heat exchanger >

A heat exchanger 500 is disposed at a left side position of the water supply unit 400 of the base 250. The outflow port 410 of the water supply unit 400 is connected to the heat exchanger 500 by a flexible hose (not shown).

The heat exchanger 500 will be described in detail below based on fig. 38 to 50.

The heat exchanger 500 is formed in a rectangular parallelepiped shape with a low height, and a large-area surface is placed on the base 250 and fixed.

The heat exchanger 500 includes a lower case 510, an upper case 520, and a front structure 530, each of which is made of a heat-resistant resin. The lower case 510 and the upper case 520 are integrally formed by welding or the like, and the front structure 530 is integrally formed at the front portion thereof by welding or the like.

At the right side of the upper surface of the front structure 530, an inlet tube 532 provided with an inlet 531 through which the washing water flows into the inner space of the heat exchanger 500 is formed to vertically protrude upward. The front structure 530 has an outlet tube 534 provided with an outlet 533 from which the washing water flows out from the inner space of the heat exchanger 500 at a left position on the upper surface, and is formed to protrude vertically upward.

The inlet tube 532 is disposed at the right side of the heat exchanger 500, so that the distance from the water supply unit 400 can be reduced, the piping connecting the water supply unit 400 and the inlet tube 532 can be shortened, and the piping workability can be improved.

A temperature detecting member mounting portion 521, which is a mounting portion of a temperature detecting member for detecting the idle burning of the heat exchanger 500, is formed by being divided by a rib on the upper surface of the upper case 520. In the present embodiment, a temperature detecting member is provided with a temperature fuse 522, and a temperature fuse 522 and a wiring 523 to the temperature fuse 522 are disposed in a temperature detecting member mounting portion 521. Since the heater structure 580 of the heat exchanger 500 is set to have a higher temperature on the inlet 531 side than on the outlet 533 side, the thermal fuse 522 is mounted at a position corresponding to the flow path on the inlet 531 side. The portion of the temperature detecting member mounting portion 521 to which the temperature fuse 522 is mounted is configured to be thin in thickness, so that the idle burning of the heat exchanger 500 is more reliably detected. The temperature detecting member mounting portion 521 is covered with a temperature detecting member cover 540 fixed to the upper case 520. The temperature fuse 522 is configured as a circuit that cuts off only the supply of electric power to the heat exchanger 500.

In the heat exchanger 500, a flow sensor 550 is mounted to the inlet tube portion 532 and a hot water outlet module 560 is mounted to the outlet tube portion 534 via a common ground connection terminal plate 565.

The terminal plate 565 is made of one metal plate, and is connected to a ground terminal (not shown) connected to the power ground. The terminal plate 565 is always in contact with the washing water at the inlet 531 and the outlet 533. Thus, even when the base insulation of the heater structure 580 is broken, leakage of water to the user or the tap water pipe through the washing water can be prevented.

As shown in fig. 42 to 44, the flow sensor 570 includes: a flow sensor housing 571, a flow sensor housing cover 572, a water inlet temperature sensor 573, a water inlet temperature sensor holder 574, a flow sensor shaft 575, an impeller 576, and a detecting member 577 for detecting the rotational speed of the impeller 576.

The flow sensor housing 571 includes an inflow port 578 to the water supply unit 400 and an outflow port 579 to the heat exchanger 500.

A flow sensor shaft 575 with an impeller 576 mounted thereon is mounted between the flow sensor housing 571 and the flow sensor housing cover 572. The inflow port 578 is disposed so that the cleaning water is supplied from the front lower portion in the tangential direction of the impeller 576, and the impeller 576 rotates around the flow sensor shaft 575 by the supplied cleaning water. The detecting member 577 is disposed above the flow sensor 570, detects the rotational speed of the impeller 576, and outputs a measured flow rate value to the control unit. This makes it possible to suppress the detection member 577 from failing to detect the rotation speed of the impeller 576, since dirt and trash are likely to accumulate below.

In the flow sensor housing 571, the water inlet temperature sensor 573 is fixed by the water inlet temperature sensor fixing member 574. The water temperature sensor 573 is assembled in such a manner that the metal part is covered by the water temperature sensor holder 574 without exposing the metal part to the outside of the flow sensor 570. Thus, even if the insulation of the wire routed around is broken, it is possible to prevent leakage of the metal portion passing through the water temperature sensor 573 to the washing water.

The washing water flowing around the impeller 576 flows out to the left from the upper front, and flows through the water temperature sensor 573 to the outflow port 579.

In the present embodiment, the flow sensor 570 is attached to the inlet 531, but may be attached downstream of the outlet 533. In this configuration, since the washing water warmed by the heat exchanger 500 is supplied to the flow sensor 570, the risk of scale adhering to the inside of the flow sensor 570 increases. Therefore, the present embodiment is advantageous in quality.

The structure of the internal space of the heat exchanger 500 will be described with reference to fig. 45 to 50. The lower heater structure 580 of fig. 46 is shown inverted by 180 degrees.

The heater structure 580 is disposed in the horizontal direction in the internal space of the heat exchanger 500, and is sandwiched and fixed between the upper case 520 and the lower case 510 via the lower seal 581 and the upper seal 582.

The heater structure 580 has a terminal portion 583 at a central portion of the front structure 530 side end portion. The terminal portion 583 connects a lead (not shown) to a heater of the heater structure 580 via the front structure 530. The lead wire connected to the terminal portion 583 is led out through a lead-out passage (not shown) formed in the front structure 530. A plurality of partial through holes 584 forming a flow path are formed in the heater structure 580 on the side of the end opposite to the end where the terminal 583 is provided.

The internal space of the heat exchanger 500 is divided in the vertical direction by the heater structure 580, and the divided upper space and lower space are formed to have substantially equal volumes. An upper seal 582 and a lower seal 581 made of silicone rubber are disposed in the upper space and the lower space, respectively.

The upper seal body 582 has a peripheral seal body 582a and three divided seal bodies 582b, 582c, 582d extending in the front-rear direction and connected to the peripheral seal body 582 a. The peripheral seal body 582a and the partitioning seal bodies 582b, 582c, 582d are sealed in close contact with the inner surface of the upper case 520 and the upper surface of the heater structure 580, and a flow path (upper side flow path) is formed between the inner surface of the upper case 520 and the heater structure 580.

The upper seal 582 includes a coupling seal 582e that couples the left and right division seals 582b and the front structure 530 side of the division seal 582d and couples the central division seal 582 c. The connecting seal body 582e is formed such that the surface of the upper seal body 582 on the heater structure 580 side is lower than the other portions of the upper seal body 582, and a flow path (upper side flow path) is formed between the connecting seal body 582e and the heater structure 580.

The lower seal 581 includes a peripheral seal 581a and three divided seals 581b, 581c, 581d extending in the front-rear direction and connected to the peripheral seal 581 a. The peripheral sealing body 581a and the partitioning sealing bodies 581b, 581c, 581d are sealed in close contact with the inner surface of the lower case 510 and the upper surface of the heater structure 580, and a flow path (lower flow path) is formed between the inner surface of the lower case 510 and the heater structure 580.

The lower seal 581 includes, on the front structure 530 side: a right-side connection seal 581e connecting a right-side portion of the peripheral seal 581a with the central division seal 581c; and a left connecting seal 581f connecting a left portion of the peripheral seal 581a with the central dividing seal 581c. The right and left connecting seals 581e and 581f make the heater structure 580 side surface of the lower seal 581 lower than the other portions of the lower seal 581. Thus, a flow path (lower flow path) is formed between the right connecting seal 581e and the heater structure 580 and between the left connecting seal 581f and the heater structure 580.

The heater structure 580 includes a heater (not shown), and the heater is disposed slightly apart from the surrounding seal 582a of the upper seal 582 and the partitioning seals 581b, 581c, 581 d. The heater is disposed slightly apart from the surrounding seal 581a and the dividing seals 581b, 581c, 581d of the lower seal 581. This prevents the heater from being locally overheated, and suppresses the durability from being lowered.

The heater sets the ratio of the electric power on the inlet 531 side to the electric power on the outlet 533 side so that the electric power on the inlet 531 side is high. In the present embodiment, the ratio of the electric power on the inlet 531 side to the electric power on the outlet 533 side is set to 3 to 2.

The cleaning water supplied from the inlet 531 flows into the flow path between the partition seal 582b on the right side of the upper space and the surrounding seal 581 a. The cleaning water flows backward while being heated by the heater structure 580, and flows into the flow path between the partition seal 581b and the surrounding seal 581a on the right side of the lower space from the through hole 584. The cleaning water flows toward the front side while being heated by the heater structure 580, and flows in through the flow path between the right split seal 581b and the center split seal 581c across the right connecting seal 581 e.

The cleaning water flows backward while being heated by the heater structure 580, and flows in from the through hole 584 to the flow path between the right partition seal 582b and the central partition seal 582 c. The cleaning water flows toward the front side while being heated by the heater structure 580, and flows over the connecting seal 582e and into the flow path between the center dividing seal 582c and the left dividing seal 582 d. The cleaning water flows backward while being heated by the heater structure 580, and flows into the flow path between the partition seal 581c and the left connecting seal 581d in the center of the lower space from the through hole 584.

The cleaning water flows forward while being heated by the heater structure 580, and flows over the left connecting seal 581f and into the flow path between the surrounding seal 581a and the left connecting seal 581 d. The cleaning water flows backward while being heated by the heater structure 580, and flows in from the flow path between the surrounding seal 582a and the left partition seal 582d in the upper space of the through hole 584. The cleaning water flows forward while being heated by the heater structure 580, and is supplied from the outlet 533 to the cleaning nozzle device 700 via a hose (not shown).

The following structure can be considered: the inlet 531 is formed on the upper case 520 side, the outlet 533 is formed on the lower case 510 side, and the washing water flows through the upper flow path and then flows through the lower flow path. With this configuration, the amount of movement of the flow in the up-down direction is predicted to be small, and the flow path resistance can be reduced.

However, in this configuration, a piping space for the outlet 533 is required below the lower case 510, and there is a problem in that the installation space is increased. Further, the piping work of the outlet 533 is performed in the gap between the lower case 510 and the base 250, which results in a problem of poor workability.

In the present embodiment, the cleaning water alternately flows through the upper flow path and the lower flow path, and a plurality of flow paths are formed in the upper and lower directions.

In the present embodiment, four flow paths are formed up and down, respectively. Thereby, the inlet 531 and the outlet 533 can be formed on the upper case 520 side. This allows the space for the piping to the inlet 531 and the outlet 533 to be formed only on the upper case 520 side, and thus, the problem of the installation space becoming large can be eliminated.

Four flow paths are formed in the upper and lower sides, respectively, but two flow paths may be formed, or six or more flow paths may be formed. By forming a plurality of up-down flow paths, the inlet 531 and the outlet 533 can be formed on the upper case 520 side.

The inner surface of the upper case 520 constituting the flow path is formed with projections 524 and is formed in a concave-convex shape. The convex portion 524 is continuously formed in a mountain shape, the upstream side is formed in a steep slope, and the downstream side is formed in a gentle slope.

The inner surface of the flow path constituting the lower case 510 is formed with projections 514 and has a concave-convex shape. The convex portion 514 is continuously formed in a mountain shape, the upstream side is formed in a steep slope, and the downstream side is formed in a gentle slope.

As shown in fig. 49, since the convex portions 514 and 524 are shaped on the upstream side toward the heater structure 580, the cleaning water flowing in the flow path is guided on the upstream side of the convex portions 514 and 524 toward the heater structure 580, and flows gradually and obliquely over the top portions of the convex portions 514 and 524 toward the downstream side. When the flow passes over the top of the protruding portions 514 and 524, the flow path volume increases, and therefore the cleaning water becomes turbulent and the temperature is uniformed. By narrowing and widening the flow path by the protrusions 514 and 524, the heat conductivity can be improved, and the temperature of the washing water can be made uniform.

By increasing the thermal conductivity of the heater structure 580, the surface temperature of the heater structure 580 can be suppressed, and adhesion of scale to the heater structure 580 can be suppressed.

The heater structure 580 includes a heater (not shown) that is provided slightly apart from the upper seal 582 and the lower seal 581, so that overheating of the heater can be prevented and adhesion of scale to the heater structure 580 can be suppressed.

When the bubbles intrude into the heat exchanger 500, the bubbles stay downstream of the convex portions 514 and 524 as shown in fig. 49.

In the present embodiment, as shown in fig. 50, since the projections 514 and 524 form the downstream side to be gently inclined, the bubbles flow downstream along the inclination of the projections 514 and 524, and are discharged from the heat exchanger 500.

A nozzle device 700 is disposed on the left side of the heat exchanger 500. The detailed structure of the nozzle device 700 is omitted.

< Water Pump >

A water pump 600, which is a variable displacement member, is provided on the right side of the nozzle device 700. In the present embodiment, a diaphragm pump is used as the water pump 600.

The water pump 600 may not be used.

As shown in fig. 51 to 55, the water pump 600 includes a pump mechanism 610 and a motor 620, and is formed in a substantially cylindrical shape. The pump mechanism portion 610 is fitted with an elastic member a630 over the entire circumference of the end portion side. The motor unit 620 is equipped with an elastic member B640 so as to cover the entire circumference of the end portion side opposite to the elastic member a630. The elastic member a630 and the elastic member B640 are formed of a material having elasticity such as a foaming resin.

The water pump 600 is assembled to the recess 605a of the pump housing 605 in a state where the elastic member a630 and the elastic member B640 are assembled. The motor 620 of the water pump 600 is fixed by engaging the claw 606a of the pump holder 606 with the fixing claw 605b of the pump housing 605.

The water pump 600 is formed in a cylindrical shape, and a water supply tube 600b having a water supply port 600a and a discharge tube 600d having a discharge port 600c are formed to protrude from one end surface perpendicularly to the end surface. The water pump 600 is provided in a horizontal direction with the end surfaces having the water supply tube 600b and the discharge tube 600d facing forward.

The pump housing 605 is fixed to a predetermined position of the base 250 by means of the elastic member C650.

The water pump 600 can absorb vibrations of a wide range of frequencies by the elastic members a630, B640, and C650, and can effectively suppress transmission of vibrations to the main body 200.

The lead 607 of the water pump 600 is restrained from moving by the fixing claw 606b and the locking claw 605 c.

Since the water pump 600 is fixed to the base 250 by screw fixation, claw fitting, or the like, the water pump 600 can be removed independently of the nozzle device 700, and maintenance workability can be improved. In addition, the vibration of the water pump 600 can be suppressed from being directly transmitted to the nozzle device 700.

As shown in fig. 55, a drain 608 is formed in the pump housing 605. If the pump mechanism 610 of the water pump 600 is broken and water leakage occurs, water can be discharged from the water discharge port 608. The water discharged from the drain port 608 is discharged from the base 250 into the toilet 110 via the inclined surface 240.

In the present embodiment, a detection member (not shown) for detecting water discharged from the drain port 608 is provided. The detection means detects that water leakage has occurred in the pump mechanism 610, and notifies a failure.

In the present embodiment, the detection means is configured to detect water from the drain port 608, but the present invention is not limited to this, and any means may be used as long as it detects water leakage from the pump mechanism 610. The detection member may be configured to detect that current is applied between the pair of terminals due to water leakage, for example, and a known configuration may be used.

The water supply port 600a of the water pump 600 is connected to the outlet 533 of the heat exchanger 500 by a soft resin connection pipe.

Hereinafter, the structure of the water pump 600 will be described in detail based on the drawings.

Fig. 56 is an exploded perspective view showing the liquid diaphragm pump of the present invention. Fig. 57 is a main part sectional view.

The lid body 1 is formed in a thin cylindrical shape, and is attached to the front surface 3a side of the middle lid body 3 via a seal 2 made of an elastic member. The lid 1 has a through hole 1c formed in a central portion thereof through which a chimney-like discharge hole 37 of the middle lid 3 can pass. The cover body 1 is provided with a suction hole 12 capable of sucking in liquid in a protruding manner, and a cover suction chamber 38 is provided in a part of the suction path 30 through which the sucked liquid flows on the cover back surface 1b, and the cover suction chamber 38 communicates with the suction hole 12.

The middle cover 3 is formed in a cylindrical shape made of resin, and a discharge hole 37 is provided to protrude from the center of the front surface 3 a. The middle cap 3 has a groove (not shown) formed in the rear surface thereof for discharging the liquid from the discharge hole 37 to the outside, and the groove communicates with the discharge hole 37. The middle cover 3 has a valve seat portion 34 formed at the bottom of the groove portion. The valve seat portions are arranged at equal intervals of 120 degrees in the circumferential direction around the discharge hole 37. Further, on the front surface 3a side of the middle cover 3, a suction chamber 33 having a circular recess portion is formed corresponding to the three valve seat portions 34. The suction chamber 33 constitutes a part of the suction path 30 through which the sucked liquid flows.

The valve seat portion 34 is formed in a short cylindrical shape, and a mounting hole (not shown) capable of mounting the suction valve body 4 is formed through the suction chamber 33 in the center portion of the distal end wall portion 35. A suction hole 32 of the suction path 30 through which the liquid can be sucked is formed near the attachment hole in the tip wall portion 35 of the valve seat portion 34.

The discharge valve membrane 52 of the diaphragm assembly 5 contacts the valve seat 34 so as to cover the valve seat 34 in a sealing and detachable manner. The distal end wall portion 35 of the valve seat portion 34 is configured to be in contact with and separated from the valve portion 4a of the suction valve main body 4, so as to freely open and close the suction hole 32. The suction valve body 4 is provided with two valve seat portions 34, and one valve seat portion 34 is not covered by the suction valve body 4.

The diaphragm assembly 5 is formed by arranging three bowl-shaped diaphragms 50 at equal intervals of 120 degrees in the circumferential direction, and connecting them by a diaphragm 54 formed at the axial center. A seal edge 53 is formed on the outer peripheral edge of the diaphragm 54, and the discharge valve membrane 52 is provided so as to protrude from the diaphragm 54 to the outer peripheral side. The diaphragm 50 is provided with a driving portion 51 for reciprocating the diaphragm 50.

The seal edge 53 of the diaphragm assembly 5 is sandwiched between the middle cover 3 and the holding member 6, and the holding member 6 has a hole through which the driving portion 51 of the diaphragm 50 can pass. The driving portion 51 of the diaphragm 50 penetrating the holding member 6 is supported by the locking hole 71 of the swing plate 7. The swinging plate 7 is disposed in a cylindrical case 13 having a bottom, and an end of the cylindrical case 13 abuts against the holding member 6.

A small dc motor 11 is disposed outside the cylindrical case 13, an output shaft 11a of the motor 11 extends into the cylindrical case 13, and the eccentric rotary body 9 is attached to the output shaft 11 a. The eccentric rotary body 9 has a shaft mounting hole 91 into which the output shaft 11a is inserted, and an eccentric hole 92 disposed eccentrically with respect to the shaft mounting hole 91, and the crankshaft 8 is inserted obliquely through the eccentric hole 92.

The diaphragm pump is configured such that the diaphragm assembly 5 is inserted and mounted by the middle cover 3 and the holding member 6 so as to sandwich the diaphragm assembly 5, thereby forming the pump chamber 25 on the inner surface side of the discharge valve diaphragm 52, and forming the common discharge space 36 having the discharge hole 37, which is formed by the groove 39 and the diaphragm 54, on the outer surface side of the discharge valve diaphragm 52.

The motor 11 fixes the cylindrical case 13 with screws 14. Further, the cover 1, the seal 2, the middle cover 3, the diaphragm assembly 5, and the holding member 6 are stacked in this order on the cylindrical case 13, and are fixed to the cylindrical case 13 by the long screws 15, thereby forming the housing 10.

In the present disclosure, three valve seat portions 34 and two intake valve bodies 4 are provided, but for example, four valve seat portions 34 and three intake valve bodies 4 may be provided.

The operation of the liquid diaphragm pump having the above configuration will be described.

When the output shaft 11a of the motor 11 is rotated, the eccentric rotary body 9 attached to the output shaft 11a is rotated, and the oscillating plate 7 is oscillated via the crankshaft 8 and the driving portion 51 of the diaphragm 50 is reciprocated. The diaphragm 50 is repeatedly expanded and compressed by the reciprocating motion of the driving part 51. Thereby, the pump chamber 25 formed by the valve seat 34 of the middle cover 3 and the diaphragm 50 is compressed and expanded.

When the pump chamber 25 expands, the pump chamber 25 becomes negative pressure, and the valve portion 4a of the intake valve body 4 is separated from the intake valve seat portion 35a so as to be pulled. The suction hole 32 of the suction path 30 formed in the tip wall portion 35 of the valve seat portion 34 is opened to the pump chamber 25. Thereby, the liquid flows from the suction hole 12 into the suction path 30 formed by the cover suction chamber 38 of the cover 1 and the suction chamber 33 of the middle cover 3, and flows into the pump chamber 25.

Further, by making the pump chamber 25 negative pressure, the discharge valve diaphragm 52 of the diaphragm 50 is brought into close contact with the valve seat 34. Thereby, the outflow of the liquid to the common discharge space 36 formed by the outer side surface of the discharge valve diaphragm 52, the diaphragm 54, and the groove portion 39 of the middle cover 3 or the reverse flow from the common discharge space 36 is prevented.

When the pump chamber 25 is compressed, the valve portion 4a of the intake valve body 4 is pressed to contact the intake valve seat portion 35 a. The suction hole 32 of the suction path 30 formed in the distal end wall portion 35 of the valve seat portion 34 is cut off by the valve portion 4 a. Thereby, the suction valve body 4 prevents the liquid from flowing in and out of the suction hole 32. In addition, the discharge valve diaphragm 52 is expanded in diameter and separated from the valve seat 34 due to the compression of the pump chamber 25, and the liquid in the pump chamber 25 is pumped into the common discharge space 36.

When the pump chamber 25 is compressed, the discharge valve diaphragm 52 expands in the direction of the common discharge space 36, thereby pressing the liquid in the common discharge space 36 and pushing the liquid out to the discharge hole 37. Thus, the outer membrane surface of the discharge valve membrane 52 performs the operation of pressure-feeding the liquid.

When the pump chamber 25 at the position where the valve portion 4a is not disposed is compressed, the suction hole 32 is kept in an open state, so that when the pump chamber 25 is compressed, the amount of liquid pushed back from the pump chamber 25 in the direction of the suction path 30 increases. The liquid pushed back to the suction path 30 is pumped into the pump chamber 25 in which the valve portion 4a is disposed.

On the other hand, the discharge valve membrane 52 is formed in a diameter-expanded shape in the direction of the common discharge space 36, but the pressure applied to the discharge valve membrane 52 is low, the discharge amount to the common discharge space 36 is small, and the cleaning water pressure of the sanitary cleaning device to be locally discharged to the human body becomes low. That is, the ejection to the local part of the human body is temporarily interrupted or the ejection is performed with a low water pressure.

Since the washing water power is generated by the local discharge of the normal water to the human body at the position where the valve portion 4a is disposed, the water pressure at the position where the valve portion 4a is disposed and the water pressure at the position where the valve portion 4a is not disposed vary, and pulsation of the washing water pressure is generated.

At the position where the valve portion 4a is disposed, the liquid pushed back to the suction path 30 is pumped to the pump chamber 25 where the valve portion 4a is disposed, and acts between the pump chambers 25, thereby generating a purge water pressure when the diaphragms are sequentially compressed in the rotation direction of the actuator.

When the performance of the diaphragm pump of the structure in which the two valve portions 4a are arranged and the diaphragm pump of the structure in which the three valve portions 4a are arranged of the present disclosure are compared, the diaphragm pump of the structure in which the two valve portions 4a are arranged of the present disclosure can generate the cleaning water pressure about 2 times the maximum cleaning water pressure of the diaphragm pump of the structure in which the three valve portions 4a are arranged.

The drying device 220 is disposed at a left position of the nozzle device 700. The drying device 220 dries the water attached to the cleaned part by using the generated warm air.

A deodorizing device 230 for deodorizing the odor in the toilet 110 is disposed at a left position of the drying device 220.

Industrial applicability

The sanitary washing device of the present disclosure can improve the workability of attaching various functional components to a base, and thus can be applied to a sanitary washing device without a toilet cover.

Description of the reference numerals

100. A sanitary washing device; 110. a toilet bowl; 200. a main body portion; 220. a drying device; 230. a deodorizing device; 250. a base; 270. a rear housing; 290. a front housing; 300. a toilet seat; 320. a toilet cover; 400. a water supply unit; 500. a heat exchanger; 600. a water pump; 700. a nozzle device.

Claims (5)

1. A method of manufacturing a sanitary washing device, wherein,

the sanitary washing device is provided with:

a main body portion; and

various functional components, which are arranged in the main body part and comprise a nozzle device for cleaning human body,

the main body portion includes:

a flat plate-shaped base portion that forms a bottom portion of the main body portion;

a rear case constituting a rear portion of the main body and a part of a side surface; and

A front case constituting a part of the side surface, an upper surface, and a front portion of the main body portion,

the method for manufacturing the sanitary washing device comprises the following steps:

a. a step of assembling the various functional components on the flat-plate-shaped base;

b. a step of assembling the rear case to the flat base by sliding the rear case forward from the rear direction of the flat base; and

c. and a step of assembling the front case to the flat base by sliding the front case from the front to the rear of the flat base.

2. The method of manufacturing a sanitary washing apparatus according to claim 1, wherein,

an uneven fitting portion is formed in the front-rear direction in the base portion and the rear housing, and the rear housing is fitted slidably in the front-rear direction along the uneven fitting portion with respect to the base portion.

3. The method of manufacturing a sanitary washing apparatus according to claim 1 or 2, wherein,

an uneven fitting portion is formed in the front-rear direction in the base portion and the front housing, and the front housing is fitted to the base portion so as to slide in the front-rear direction along the uneven fitting portion.

4. The method of manufacturing a sanitary washing apparatus according to claim 1 or 2, wherein,

An extension part extending in a horizontal direction is formed at a front upper edge of the rear housing,

a recess is formed in the rear upper edge of the front case so as to sandwich the extension portion from the up-down direction.

5. The method of manufacturing a sanitary washing apparatus as set forth in claim 3, wherein,

an extension part extending in a horizontal direction is formed at a front upper edge of the rear housing,

a recess is formed in the rear upper edge of the front case so as to sandwich the extension portion from the up-down direction.