WO2021166454A1 - Hygienic cleaning device - Google Patents

Abstract

The hygienic cleaning device according to the present disclosure comprises a main body, a heat exchanger that is provided within the main body and heats washing water, and a nozzle unit that is provided within the main body and washes a human body. The heat exchanger partitions the inner space into an upper space and a lower space and forms flow channels respectively in the upper and lower spaces. The flow channel in the upper space is communicated with the flow channel in the lower space and a concave/convex pattern is formed in each flow channel for changing the flow channel area. The concave/convex pattern is formed in each flow channel for changing the flow channel area. Due to this structure, the flow rate is changed in the flow channels and thus bubbles are washed away.

Description

Sanitary cleaning equipment

The present invention relates to a sanitary cleaning device that cleans a local part of the human body.

Conventionally, this type of sanitary cleaning device is configured to heat water supplied from a water supply source to a suitable temperature of a predetermined temperature in a short time and use it for cleaning the human body, etc., and is a heat exchanger to supply water. It has.

Patent Document 1 discloses a sanitary cleaning device including a heat exchanger. This heat exchanger is formed to have a small thickness, and has a water inlet at the bottom and a water outlet at the top, and the internal space of the heat exchanger has a meandering flow path from the water inlet at the bottom to the water outlet at the top. Is forming. The water supplied from the lower inlet is heated and moved upward using the buoyancy of the heated fluid. As a result, the washing water can be efficiently heated to an appropriate temperature.

Japanese Unexamined Patent Publication No. 2005-146552

However, in the heat exchanger of Patent Document 1, in order to circulate the washing water by utilizing the buoyancy of the heated liquid, the height from the lower water inlet to the upper water intake is required to heat the liquid. It becomes. Therefore, there is a problem that the height dimension of the heat exchanger becomes high and the height of the main body in which the heat exchanger is incorporated is limited.

The present invention solves the problem of Patent Document 1 and provides a sanitary cleaning device capable of lowering the height of the heat exchanger.

The sanitary cleaning device in the present disclosure includes a main body, a heat exchanger arranged in the main body to heat the washing water, and a nozzle device arranged in the main body to wash the human body. The heat exchanger divides the internal space up and down, forms a flow path in the upper space and the lower space, communicates the flow path of the upper space and the flow path of the lower space, and flows through the flow path. Form an uneven shape that changes the road area.

In the sanitary cleaning device in the present disclosure, the height of the heat exchanger can be set low, and the height of the main body in which the heat exchanger is incorporated can be set low.

External perspective view of the sanitary cleaning device according to the first embodiment External perspective view of the main part of the sanitary cleaning equipment Top view of the sanitary cleaning device with the front cover and rear cover removed from the main body. Perspective view of the sanitary cleaning device with the front cover removed from the main body. Perspective view of the sanitary cleaning device with the rear cover removed from the main body. Perspective view of the base of the sanitary cleaning equipment Cross-sectional view of the main part of the sanitary cleaning equipment Cross-sectional view of the main part of the sanitary cleaning equipment Cross-sectional view of the main part of the sanitary cleaning equipment Cross-sectional view of the main part of the sanitary cleaning equipment Perspective view of the main part of the sanitary cleaning equipment Perspective view of the main part showing the damper mechanism of the sanitary cleaning device Perspective view of the main part showing the damper mechanism of the sanitary cleaning device Cross-sectional view of the main part showing the damper mechanism of the sanitary cleaning device Perspective view of the main part showing the seating detection part of the sanitary cleaning device Perspective view of the main part showing the seating detection part of the sanitary cleaning device Perspective view of the main part showing the seating detection part of the sanitary cleaning device A perspective view showing the back of the main body of the sanitary cleaning device. Cross-sectional view of the main part of the sanitary cleaning equipment Perspective view of the main part of the sanitary cleaning device with the toilet lid open Perspective view of the main part of the sanitary cleaning device with the toilet lid open Perspective view of the main part with the front cover of the sanitary cleaning device removed Cross-sectional view of the main part showing the circumference of the sleeve operation part of the sanitary cleaning device Perspective view of the sleeve operation part of the sanitary cleaning device An exploded perspective view of the sleeve operation part of the sanitary cleaning device Cross-sectional view of the sleeve operation part of the sanitary cleaning device Cross-sectional view around the heat exchanger of the sanitary cleaning equipment Perspective view of the water supply unit of the sanitary cleaning device Cross-sectional view of the water supply unit of the sanitary cleaning equipment Cross-sectional view of the vacuum breaker of the water supply unit of the sanitary cleaning equipment Cross-sectional view of the vacuum breaker of the water supply unit of the sanitary cleaning equipment Cross-sectional view of the water supply unit of the sanitary cleaning equipment Cross-sectional view of the vacuum breaker of the water supply unit of the sanitary cleaning equipment Cross-sectional view of the vacuum breaker of the water supply unit of the sanitary cleaning equipment Cross-sectional view of the water supply unit of the sanitary cleaning equipment Cross-sectional view of the vacuum breaker of the water supply unit of the sanitary cleaning equipment Cross-sectional view of the vacuum breaker of the water supply unit of the sanitary cleaning equipment Perspective view of the heat exchanger of the sanitary cleaning equipment Perspective view of the heat exchanger with the hot water block of the sanitary cleaning device removed. An exploded perspective view of the heat exchanger of the sanitary cleaning equipment An exploded perspective view of the heat exchanger of the sanitary cleaning equipment Perspective view of the flow sensor of the heat exchanger of the sanitary cleaning equipment Cross-sectional view of the flow sensor of the heat exchanger of the sanitary cleaning equipment Cross-sectional view of the flow sensor of the heat exchanger of the sanitary cleaning equipment An exploded perspective view of the heat exchanger of the sanitary cleaning equipment An exploded perspective view of the heat exchanger of the sanitary cleaning equipment Cross-sectional view of the heat exchanger of the sanitary cleaning equipment Cross-sectional view of the main part of the heat exchanger of the sanitary cleaning equipment Cross-sectional view of the main part of the heat exchanger of the sanitary cleaning equipment Cross-sectional view of the main part of the heat exchanger of the sanitary cleaning equipment Perspective view of the water pump of the sanitary cleaning equipment Perspective view of the water pump of the sanitary cleaning equipment An exploded perspective view of the water pump of the sanitary cleaning equipment Perspective view of the water pump of the sanitary cleaning equipment Perspective view of the water pump of the sanitary cleaning equipment An exploded perspective view of the water pump of the sanitary cleaning equipment Cross-sectional view of the water pump of the sanitary cleaning equipment

(Knowledge, etc. that was the basis of this disclosure)
At the time when the inventors came up with the present disclosure, the technology related to the heat exchanger in the sanitary cleaning device formed a meandering flow path in the vertical direction, and supplied the cleaning water from below to heat the cleaning water. The buoyancy generated by this was used to discharge the washing water from above. Therefore, in order to heat the washing water to an appropriate temperature, a flow path having a sufficient length is required, and there is a problem that the height of the heat exchanger becomes high and the height of the main body becomes high.

The inventors have come to construct the subject matter of the present disclosure in order to solve the problem.

Therefore, the present disclosure includes a main body, a heat exchanger arranged in the main body to heat the washing water, and a nozzle device arranged in the main body to wash the human body, and the heat exchange is provided. The vessel divides the internal space into upper and lower parts, forms a flow path in the upper space and the lower space, communicates the flow path in the upper space with the flow path in the lower space, and has a flow path area in the flow path. Form a concavo-convex shape that changes.

By partitioning the inside of the heat exchanger into upper and lower parts to form a flow path, if bubbles are generated in the flow path, the bubbles may stay in the flow path and be overheated.

By forming an uneven shape that changes the flow path area in the flow path, the flow velocity changes in the flow path in the flow path, and bubbles are swept away.

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

It should be noted that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

(Embodiment 1)
As shown in FIG. 1, the sanitary cleaning device 100 includes a main body 200, a toilet seat 300, and a toilet lid 320 as main constituent members. The main body 200, the toilet seat 300, and the toilet lid 320 are integrally configured and installed on the upper surface of the toilet bowl 110.

On the right side of the main body 200, a sleeve operation unit 210 is provided so as to project forward, and a plurality of switches and indicator lights for operating and setting each function of the sanitary cleaning device 100 are installed.

In the present embodiment, the installation side of the main body 200 of the sanitary cleaning device 100 is the rear, the installation side of the toilet seat 300 is the front, the right side toward the front is the right side, and the left side toward the front is the left side. The arrangement of each component will be described.

As shown in FIGS. 3 to 5, in the main body 200, from the right, a water supply unit 400, a heat exchanger 500, a water pump 600, a nozzle device 700, a drying device 220 for locally drying, and an odor during defecation. A deodorizing device 230 or the like for deodorizing the water is provided, and a control unit or the like for controlling each function of the sanitary cleaning device 100 is provided above the heat exchanger 500. A wash water flow path (not shown) is formed so that wash water flows from the water supply unit 400 to the nozzle device 700. The water supply unit 400 or the water pipe connected to the water supply unit 400 is a source of wash 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 are hereinafter referred to as various functional parts.

Various functional parts can be added or reduced as needed.

<Main body configuration>
The main body 200 is composed of a base portion 250 forming a bottom surface, a rear case 270 forming a part of a rear portion and a side surface, and a front case 290 forming a part of a front portion, an upper surface and a side surface.

The base portion 250 is formed with a convex portion 251 whose width gradually narrows from the side surface to the back surface. The rear case 270 is formed with a groove 271 whose width gradually narrows from the side surface to the back surface. Here, the convex portion 251 of the base portion 250 and the groove portion 271 of the rear case 270 form a concavo-convex combined portion formed in the front-rear direction.

The rear case 270 is attached to the base portion 250 by sliding from the rear to the front of the base portion 250. When the rear case 270 is slid and mounted, the groove portion 271 and the insertion portion of the convex portion 251 are slid as a guide in a state where the convex portion 251 is inserted into the groove portion 271.

This improves the workability of mounting the rear case 270 on the base portion 250. Further, in the state where the rear case 270 is attached to the base portion 250, the gap between the inside and the outside of the main body portion 200 becomes meandering due to the groove portion 271 and the convex portion 251 to suppress the infiltration of liquid into the main body portion 200. can.

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

The front case 290 is attached from the front side of the base portion 250. When the front case 290 is attached to the base portion 250, the side surface of the front case 290 comes into contact with the outside of the side surface of the rear case 270, and it is possible to prevent a gap from being formed on the side surfaces of the front case 290 and the rear case 270.

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

The front case 290 is attached to the base portion 250 by sliding from the front to the rear of the base portion 250. When the front case 290 is slid and mounted, the groove portion 252 and the insertion portion of the convex portion 291 are slid as a guide with the convex portion 291 inserted in the groove portion 252.

This improves the workability of mounting the front case 290 on the base portion 250. Further, in the state where the front case 290 is attached to the base portion 250, the gap between the inside and the outside of the main body portion 200 becomes meandering due to the groove portion 252 and the convex portion 291 to suppress the infiltration of liquid into the main body portion 200. can.

As shown in FIG. 8, the front end surface 270a of the rear case 270 is formed so as to extend horizontally toward the front. The rear end of the front case 290 has a U-shaped holding portion 290a that holds the front end surface 270a of the rear case 270, and holds the front case 290 from the front. As a result, the sandwiching portion 290a sandwiches the front end surface 270a of the rear case 270, and suppresses the formation of a gap between the front case 290 and the rear case 270. The upper surface of the front case 290 is formed so as to be curved toward the back surface of the rear case 270, and with the front case 290 attached, the upper surface of the front case 290 is gently connected toward the back surface of the rear case 270, and the main body 200 It forms part of the rear part. The front case 290 is screwed to the rear case 270 from the rear side.

As a result, the joint between the front case 290 and the rear case 270 can be made inconspicuous when viewed from the front, and the aesthetic appearance can be suppressed from being impaired. Further, even when the liquid is dropped on the upper surface of the main body 200, the liquid can be dropped on the rear case side without infiltrating from the joint with the rear case 270 of the front case 290.

As shown in FIG. 10, the inclined surface 240 constituting the lower part of the nozzle device 700 is configured to be inclined according to the inclination of the nozzle device 700, is composed of the front case 290 and the base portion 250, and is combined on the inclined surface 240. do. The mating portion of the inclined surface 240 is configured to be located at an upper position in the toilet bowl of the toilet bowl 110.

The inclined surface 240 may be formed on the front case 290. In this configuration, the joint portion between the front case 290 and the base portion 250 is located above the toilet bowl 110, and water is supplied to the joint portion. If it invades, the upper surface of the toilet bowl 110 may be soiled. Further, when the joint portion is not configured with a waterproof structure, the risk of soiling the upper surface of the toilet bowl 110 increases.

In the present embodiment, when water leaks from the nozzle device 700 in the main body 200, it is drained into the toilet bowl of the toilet bowl 110 along the inclined surface 240. Even if water enters the joint portion between the front case 290 and the base portion 250, the joint portion is located inside the toilet bowl 110, so that the surrounding portion is not polluted. Since the joining portion is formed by joining the groove portion 252 formed in the base portion 250 and the convex portion 291 formed in the front case 290, it is difficult for water to enter and the cleanability can be improved.

The same effect can be expected even if the main body 200 is mounted so as to be inclined toward the rear.

Since the front lower part of the main body 200 is composed of the front case 290, it is possible to improve the cleaning workability even if sewage adheres. Further, by forming a draining rib for draining the sewage adhering to the front case 290, it is possible to further improve the drainage property into the toilet bowl 110.

On the bottom surface of the base portion 250, ribs 253 are formed so as to project upward at the front end on the right side of the nozzle device 700 and at the front positions of the water supply unit 400 and the heat exchanger 500. When a water leak occurs in the water circuit component on the right side of the nozzle device 700, the rib 253 guides the leaked water to the inclined surface 240 and drains the water into the toilet bowl 110.

The front of the inclined surface 240 is covered with a nozzle cover (not shown), but the leaked water is drained from around the nozzle cover and can be drained without providing a dedicated drain port. By providing the nozzle cover, it is possible to eliminate the unevenness at the front position of the main body 200 where the sewage rebounds most, and it is possible to improve the cleanability.

<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 so that the toilet seat 300 and the toilet lid 320 are gently closed.

The damper mechanism is shown in FIGS. 12 to 14. The damper mechanism 241 includes a toilet seat damper 242 and a toilet lid damper 243, and the toilet seat 300 is attached to the toilet seat damper 242, and the toilet lid 320 is attached to the toilet lid damper 243.

The toilet seat damper 242 and the toilet lid damper 243 are fixed by aggregating a plurality of locking claws 245 provided on the damper mounting portion 244. The damper mounting portion 244 is fixed to the upper left side of the rear case 270.

The toilet seat damper 242 and the toilet lid damper 243 are configured to be fitted to the damper mounting portion 244 by the locking claw 245, but the toilet seat damper 242 or the toilet lid damper 243 is used for a long period of time. Is assumed to come off from the locking claw 245 and fall off from the damper mounting portion 244.

In the present embodiment, the dropout prevention boss 246 that comes into contact with the toilet seat damper 242 and the toilet lid damper 243 is projected from the rear case 270 toward the toilet seat damper 242 and the toilet lid damper 243. Even if the toilet seat damper 242 or the toilet lid damper 243 comes off from the locking claw 245, the fall-out prevention boss 246 is in contact with the toilet seat damper 242 or the toilet lid damper 243, so that the toilet seat damper 242, Alternatively, it is possible to prevent the toilet lid damper 243 from falling off.

In the present embodiment, the toilet seat damper 242 and the toilet lid damper 243 are fixed to the damper mounting portion 244 by the locking claw 245 to improve the mounting workability and eliminate the fixing members such as screws. Material costs are being reduced.

Of course, when it is desired to firmly fix the toilet seat damper 242 and the toilet lid damper 243 to the damper mounting portion 244, a fixing means such as screw fixing may be used.

In the above embodiment, the damper mechanism is provided so that the toilet seat 300 and the toilet lid 320 are gently closed, but the toilet seat 300 and the toilet lid 320 may be opened and closed by an electric motor.

<Detailed configuration of the main body>
As shown in FIGS. 15 to 17, a seating detection unit 272 is arranged on the toilet seat support portion 276 of the rear case 270. The seating detection unit 272 detects that the human body sits 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 portion 276, and when a person sits on the toilet seat 300, the seating detection unit 272 also lowers the toilet seat shaft 301 due to the weight of the human body. It detects that the human body is seated by detecting that it is lowered downward.

As shown in FIGS. 18 and 19, a through hole 273 is formed on the right side of the back surface of the rear case 270, and a filter 274 for removing foreign matter in the water supply is provided inside the through hole 273. There is. The filter 274 can be removed from the through hole 273 on the back surface of the rear case 270, and foreign matter adhering to the filter 274 can be cleaned.

As shown in FIGS. 20 and 21, stoppers 275 are provided on both side surfaces of the rear case 270 to regulate the opening angle of the toilet lid 320 when the toilet lid 320 is opened near the toilet lid rotation shaft 321. Has been done. The stopper 275 is formed so as to extend from the side surface portion to the horizontal portion so that it can be easily wiped off even when it becomes dirty due to adhesion of dust, etc., so that a minute gap does not occur. Further, the stopper 275 is also connected to the vertical portion and the horizontal portion in an R shape, and has a structure in consideration of cleanability.

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

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

The sleeve operation unit 210 includes a lower case 212, an upper case 213, an operation board unit 214, and an operation name plate 215. The operation board unit 214 includes an operation board 216 and an operation unit board case 217, and connects the operation board 216 and the main body board (not shown) with lead wires 218.

The operation board portion 214 is screwed to the upper case 213, and a sealing material (not shown) is arranged between the operation portion board case 217 and the upper case 213. The lead wire 218 of the operation board portion 214 is wired to the base portion 250 through the cavity portion 219 formed by the lower case 212. The lower case 212 is provided with ribs (not shown) for fixing the lead wires 218 to prevent the lead wires from getting caught during assembly.

The upper case 213 and the lower case 212 are configured by fastening the upper case 213 and the lower case 212 with screws from above the upper case 213 to the lower case 212 after claw fitting (not shown), and attaching the operation name plate 215 so as to cover the screws. .. The joint portion between the lower case 212 and the upper case 213 forms a peripheral wall 225 on the upper case 213 so as to cover the mating surface of the lower case 212 and the upper case 213 from the outer peripheral side. As a result, even when the sleeve operating portion 210 is splashed with the liquid, it is possible to prevent the liquid from infiltrating into the inside.

In the lower case 212, a mounting portion 221 for mounting on the mounting portion 211 is formed integrally with the lower case 212. A groove portion 222 is formed on the base portion 250 side of the mounting portion 221 so as to be aligned with the convex portion 251 of the base portion 250. On the front case 290 side of the mounting portion 221 is formed a groove portion 223 in which the convex portions 292 formed in the front case 290 are aligned.

The mounting portion 221 is formed larger in the vertical direction and the front-rear direction than the extending portion 224 extending from the lower case 212 toward the mounting portion 221. To form a part of the side wall of the main body 200. Since the liquid is spilled from above the extending portion 224 at the outer peripheral position, it is possible to prevent the liquid from entering the main body 200 from the spilled portion. The extension portion 224 and the mounting portion 221 are formed on a curved surface to improve the workability of cleaning.

In the state where the mounting portion 221 is mounted on the mounting portion 211, the gap between the inside and the outside becomes meandering due to the mating between the groove portion 222 and the convex portion 251 and the mating between the groove portion 223 and the convex portion 292, and the mounting portion 221 It is possible to suppress the infiltration of liquid into the inside.

In the present embodiment, various functions are operated by the sleeve operation unit 210, but it may be operated by the remote control device. In this configuration, a mounting plate having a receiving unit and a minimum number of operation switches can be mounted on the mounting portion 211 by the same mounting configuration as the mounting configuration of the mounting portion 221. This makes it possible to support a plurality of models.

<Base configuration>
Various functional parts that perform each function of the sanitary cleaning device 100 are mounted on the base portion 250. The base portion 250 is provided with a mounting portion 254 for mounting various functional parts.

FIG. 27 shows the mounting portion 254 of the heat exchanger 500 as an example of the mounting portion. The mounting portion 254 of the heat exchanger 500 is an example, and it goes without saying that other configurations may be used.

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

Since various functional parts differ in shape, height of center of gravity, etc., the shape and the like of the mounting portion 254 can be appropriately selected depending on the various functional parts.

Various functional parts are carried on a belt conveyor and mounted on the base portion 250 by an automatic machine, and the locking piece 255 and the engaging claw 256 are engaged with each other and fixed or temporarily fixed to prevent misalignment. ..

During manufacturing, the base portion 250 is placed on a pallet on a belt conveyor and moved, and various functional parts are fixed or temporarily fixed by an automatic machine and by a mounting portion 254 of various functional parts of the base portion 250. Will be done. When various functional parts are placed on the base part 250, the base part 250 on the pallet moves to a predetermined position, and various functional parts are screwed to the base part 250 by an automatic machine as needed.

Since the base portion 250 is formed in a flat plate shape and there is no member covering the base portion 250, it is possible to easily perform mounting and screwing work of various functional parts by an automatic machine.

Since the various functional parts are fixed or temporarily fixed to the mounting portion 254 on the base portion 250 to prevent the movement of the various functional parts, they are not affected by the vibration during movement by the belt conveyor and are automatically fixed. It is possible to fix screws by machine.

In the present embodiment, various functional parts mounted on the base portion 250 by an automatic machine include a sleeve operation portion 210, a water supply unit 400, a heat exchanger 500, a nozzle device 700, a drying device 220, a deodorizing device 230, and the like. ..

In the present embodiment, as various functional parts, a sleeve 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 sleeve operation unit is provided. The 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 erected vertically upward from the base portion 250.

However, depending on the structure and shape of the various functional parts, the locking piece 255 may be configured to stand upward in an inclined state with respect to the base portion 250. With this configuration, when assembling by an automatic machine, it is preferable that the pallet on which the base portion 250 is placed is tilted when various functional parts are attached.

Further, as the mounting portion 254, the locking piece 255 was formed on the base portion 250 and the engaging claw 256 was formed on the various functional parts, but the engaging claw 256 was formed on the base portion 250 and engaged with the various functional parts. Claws 256 may be formed.

The mounting portion 254 may have a configuration in which various functional parts can be fixed or temporarily fixed to the base portion 250, and a configuration other than the locking piece 255 and the engaging claw 256 can be selected.

In addition, various functional parts have a holding portion for holding the lead wire so as not to interfere with the assembly. The lead wire is held in the holding portion before the assembly work so as not to interfere with the assembly.

Further, while the control unit (not shown) is arranged on the right side of the nozzle device 700, the drying device 220 and the deodorizing device 230 are arranged on the left side, the leads are arranged so that the lead wires do not come into contact with the driving unit of the nozzle device 700. A wiring member (not shown) that supports the wire at an upper position of the nozzle device 700 is provided. The wiring member is fixed to the case of the control unit and the drying device 220. As a result, easy assembly can be realized without the nozzle device 700 coming into contact with the lead wire during driving.

<Water supply unit>
A water supply unit 400 is arranged on the base portion 250 at the rightmost position. The water supply unit 400 is connected to the water supply via a hose (not shown) outside the main body 200.

The water supply unit shown in FIGS. 28 to 31 includes a water pump 600 and an open water channel 405A, and will be described below as a water supply unit 400A.

The water supply unit 400A includes a strainer 401A, a constant flow rate valve 402A, a water stop solenoid valve 403A, a vacuum breaker 404A, and an open water channel 405A.

The purified water flowing through the water pipe (not shown) is supplied to the strainer 401A as cleaning water. The strainer 401A removes dust and impurities contained in the washing water.

The cleaning water from which dust and impurities have been removed by the strainer 401A is supplied to the water blocking solenoid valve 403A. The water stop solenoid valve 403A switches the supply state of the wash water to the downstream side. The operation of the water stop solenoid valve 403A is controlled by a control unit (not shown). When the wash water is supplied from the water stop solenoid valve 403A to the constant flow rate valve 402A, the wash water is supplied to the vacuum breaker 404A. The constant flow valve 402A constantly controls the flow rate of the washing water flowing in the water supply unit 400A.

The vacuum breaker 404A includes a vacuum adapter 406A, a vacuum lid 407A that covers the vacuum adapter 406A, and a vacuum breaker valve 408A that is supported between the vacuum adapter 406A and the vacuum lid 407A.

The vacuum adapter 406A has an inflow port 409A into which the washing water from the constant flow valve 402A flows in, an outflow port 410A to the main water channel, and an outflow port 411A to the open water channel 405A. The vacuum lid 407A includes an intake port 412A.

The water supply unit 400 allows the wash water supplied from the inflow port 409A to flow to the outflow port 410A to the main water channel and the outflow port 411A to the open water channel 405A. The wash water supplied to the outflow port 410A to the main water channel flows to the downstream side by the output of the water pump 600 arranged on the downstream side. The wash water that has not been supplied to the outflow port 410A is guided from the outflow port 411A to the open water channel 405A and drained into the toilet bowl.

A flow rate sensor 570, a heat exchanger 500, etc. are arranged on the upstream side of the water pump 600 in the main water channel. The flow rate sensor 570, the heat exchanger 500, and the like have a large flow path resistance. Therefore, in the configuration in which the washing water is flowed to the downstream side by the output of only 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 water channel side, it is possible to apply a water pressure corresponding to the flow path resistance of the flow sensor 570, the heat exchanger 500, etc. to the outlet 410A to the main water channel. The load on the water pump 600 can be suppressed.

Further, the smaller the cleaning flow rate set by the user, the larger the flow rate through the fixed orifice 413C, the larger the water pressure applied to the outlet 410 to the main water channel, and the larger the water pressure applied to the inlet of the water pump 600. It is possible to cancel the pulsation of the washing water discharged from the water and provide a gentler washing water. On the contrary, the larger the cleaning flow rate set by the user, the smaller the flow rate through the fixed orifice 413C, the smaller the water pressure applied to the outlet 410 to the main water channel, and the smaller the water pressure applied to the water pump 600 inlet. It is possible to provide stronger wash water without killing the pulsation of the wash water coming out of 700.

In the vacuum breaker 404, since the washing water normally pushes up the vacuum breaker valve 408 by water pressure, the flow path to the intake port 412 is closed, but when the upstream side becomes negative pressure, the vacuum breaker The valve 408 is lowered, and outside air is taken in from the intake port 412 to release the negative pressure on the upstream side, so that the danger of sewage flowing back from the nozzle device 700 or the open water channel can be prevented.

In the embodiment of the water supply unit, it is conceivable that the water pump 600 is eliminated.

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

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

The purified water flowing through the water pipe (not shown) is supplied to the strainer 401B as cleaning water. The strainer 401B removes dust and impurities contained in the washing water.

The cleaning water from which dust and impurities have been removed by the strainer 401B is supplied to the water blocking solenoid valve 403B. The water stop solenoid valve 403B switches the supply state of the washing water to the downstream side. The operation of the water stop solenoid valve 403B is controlled by a control unit (not shown). When the wash 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 breaker 404B includes a vacuum adapter 406B, a vacuum lid 407B that covers the vacuum adapter 406B, and a vacuum breaker valve 408B that is 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 in, an outflow port 410B to the main water channel, and an outflow port 411B to the open water channel. The vacuum lid 407B includes an intake port 412B.

The vacuum breaker 404B is arranged on the downstream side of the pressure reducing valve 402B, and the washing water decompressed to a constant pressure by the pressure reducing valve 402B is supplied from the inflow port 409B into the vacuum breaker 404B and flows to the outflow port 410B.

In the vacuum breaker 404B, since the washing water normally pushes up the vacuum breaker valve 408B by the water pressure, the flow path to the intake port 412B is closed. When the upstream side becomes negative pressure, the vacuum breaker valve 408B is lowered, and outside air is taken in from the intake port 412B to release the negative pressure on the upstream side to prevent the risk of sewage flowing back from the nozzle device 700 or the open water channel. can do.

In the embodiment of the water supply unit described above, it is conceivable to add a pump and a pressure reducing valve.

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

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

The purified water flowing through the water pipe (not shown) is supplied to the strainer 401C as cleaning water. The strainer 401C removes dust and impurities contained in the washing water.

The cleaning water from which dust and impurities have been removed by the strainer 401C is supplied to the water blocking solenoid valve 403C. The water stop solenoid valve 403C switches the supply state of the wash water to the downstream side. The operation of the water stop solenoid valve 403C is controlled by a control unit (not shown). When the wash 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 breaker 404C includes a vacuum adapter 406C, a vacuum lid 407C that covers the vacuum adapter 406C, and a vacuum breaker valve 408C that is 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 in, an outflow port 410C to the main water channel, and an outflow port 411C to the open water channel. The vacuum lid 407C includes an intake port 412C.

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

The smaller the cleaning flow rate set by the user, the smaller the flow rate through the fixed orifice 413C, the larger the water pressure applied to the outlet 410C, and the larger the water pressure applied to the inlet of the water pump 600. Can be counteracted and a gentler wash water can be provided. On the contrary, the larger the cleaning flow rate set by the user, the larger the flow rate through the fixed orifice 413C, the smaller the water pressure applied to the outlet 410C, and the smaller the water pressure applied to the inlet of the water pump 600. It is possible to provide stronger wash water without killing the pulsation of water.

In the vacuum breaker 404C, since the washing water normally pushes up the vacuum breaker valve 408C by the water pressure, the flow path to the intake port 412C is closed. When the upstream side becomes negative pressure, the vacuum breaker valve 408C is lowered, and outside air is taken in from the intake port 412C to release the negative pressure on the upstream side to prevent the risk of sewage flowing back from the nozzle device 700 or the open water channel. can do.

Even if sewage tries to flow back from the nozzle device 700, the backflow of sewage can be suppressed because the flow path of the sewage flowing from the outlet 410C is reduced by the fixed orifice 413C.

<Heat exchanger>
A heat exchanger 500 is arranged at a position on the left side of the water supply unit 400 of the base portion 250. The outlet 410 of the water supply unit 400 and the heat exchanger 500 are connected by a flexible hose (not shown).

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

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

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

In the front component 530, an inlet cylinder portion 532 provided with an inlet 531 for washing water into the internal space of the heat exchanger 500 is vertically projected upward at a position on the right side of the upper surface. An outlet tubular portion 534 provided with an outlet 533 for washing water from the internal space of the heat exchanger 500 is vertically projected upward from the front component 530 at a position on the left side of the upper surface.

By arranging the inlet cylinder portion 532 at the right side position of the heat exchanger 500, the distance between the inlet cylinder portion 532 and the water supply unit 400 can be shortened, and the pipe connecting the water supply unit 400 and the inlet cylinder portion 532 can be shortened. Workability can be improved.

On the upper surface of the upper case 520, a temperature detecting means mounting portion 521, which is a mounting portion of the temperature detecting means for detecting the empty heating of the heat exchanger 500, is partitioned by ribs. In the present embodiment, the temperature detecting means uses the temperature fuse 522, and the temperature detecting means mounting portion 521 is provided with the temperature fuse 522 and the wiring 523 to the temperature fuse 522. In the heater configuration 580 of the heat exchanger 500, the temperature on the inlet 531 side is set higher than that on the outlet 533 side, so that the thermal fuse 522 is attached at a position corresponding to the flow path on the inlet 531 side. The portion of the temperature detecting means mounting portion 521 to which the temperature fuse 522 is mounted is configured to have a thin wall thickness so as to more reliably detect the empty heating of the heat exchanger 500. The temperature detecting means mounting portion 521 is covered with a temperature detecting means cover 540 fixed to the upper case 520. The thermal fuse 522 has a circuit configuration that cuts off only the power supply to the heat exchanger 500.

In the heat exchanger 500, a flow rate sensor 550 is attached to the inlet cylinder portion 532 and a hot water outlet block 560 is attached to the outlet cylinder portion 534 via a common terminal plate 565 for ground connection.

The terminal plate 565 is made of one metal plate and is connected to a ground terminal (not shown) connected to the power supply ground. The terminal plate 565 is in constant contact with the wash water at the inlet 531 and the outlet 533. As a result, even if the basic insulation of the heater component 580 is destroyed, it is possible to prevent electric leakage to the user or the water pipe through the washing water.

As shown in FIGS. 42 to 44, the flow rate sensor 570 includes a flow rate sensor case 571, a flow rate sensor case lid 572, a water entry temperature sensor 573, a water entry temperature sensor fixture 574, a flow rate sensor shaft 575, and an impeller. The 576 and the detecting means 577 for detecting the rotation speed of the impeller 576 are provided.

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

A flow rate sensor shaft 575 to which an impeller 576 is attached is mounted between the flow rate sensor case 571 and the flow rate sensor case lid 572. The inflow port 578 is arranged so that the washing water is supplied from the lower front portion in the tangential direction of the impeller 576, and the impeller 576 rotates about the flow rate sensor shaft 575 by the supplied washing water. The detection means 577 is arranged above the flow rate sensor 570, detects the rotation speed of the impeller 576, and outputs the measured flow rate value to the control unit. As a result, dirt and dust tend to collect underneath, and it is possible to prevent the detecting means 577 from being unable to detect the rotation speed of the impeller 576.

The water inlet temperature sensor 573 is fixed to the flow rate sensor case 571 by the water inlet temperature sensor fixture 574. The water entry temperature sensor 573 is attached by covering the metal portion with the water entry temperature sensor fixture 574 so that the metal portion is not exposed to the outside of the flow rate sensor 570. As a result, even if the insulation of the lead wire wired around the device is broken, it is possible to prevent electric leakage to the washing water via the metal portion of the water entry temperature sensor 573.

The wash water that has flowed around the impeller 576 flows out from the upper front to the left, passes through the entry temperature sensor 573, and flows to the outlet 579.

In the present embodiment, the flow rate sensor 570 is attached to the inlet 531 but may be attached downstream of the outlet 533. In this configuration, the washing water warmed by the heat exchanger 500 is supplied to the flow rate sensor 570, so that there is a high risk that the scale adheres to the inside of the flow rate sensor 570. Therefore, this embodiment is superior in quality.

The structure of the internal space of the heat exchanger 500 will be described with reference to FIGS. 45 to 50. The lower heater component 580 in FIG. 46 shows a state of being inverted by 180 degrees.

A heater component 580 is horizontally arranged in the internal space of the heat exchanger 500, and is sandwiched and fixed by the upper case 520 and the lower case 510 via the lower seal body 581 and the upper seal body 582.

The heater component 580 has a terminal portion 583 at the center of the side end portion of the front component 530. The terminal portion 583 connects a lead wire (not shown) to the heater of the heater component 580 via the front component 530. The lead wire connected to the terminal portion 583 is drawn out through a lead-out passage (not shown) formed in the front component 530. The heater configuration body 580 is formed with a plurality of through holes 584 forming a part of the flow path on the end side facing the end where the terminal portion 583 is provided.

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

The upper seal body 582 has three compartment seal bodies 582b, 582c, and 582d that extend in the front-rear direction and connect to the peripheral seal body 582a with the peripheral seal body 582a. Peripheral seal bodies 582a and compartment seal bodies 582b, 582c, 582d are closely sealed to the inner surface of the upper case 520 and the upper surface of the heater component 580, and a flow path (upper flow path) is provided between the inner surface of the upper case 520 and the heater component 580. ) Is formed.

The upper seal body 582 includes a connecting seal body 582e that connects the left and right compartment seal bodies 582b and the front component 530 side of the compartment seal body 582d and connects to the central compartment seal body 582c. The connection seal body 582e is formed so that the surface on the heater component 580 side is lower than the other parts of the upper seal body 582 to form a flow path (upper flow path) between the connection seal body 582e and the heater component 580. ..

The lower seal body 581 has three compartment seal bodies 581b, 581c, and 581d that extend in the front-rear direction and connect to the peripheral seal body 581a with the peripheral seal body 581a. Peripheral seal bodies 581a and compartment seal bodies 581b, 581c, 581d closely seal the inner surface of the lower case 510 and the upper surface of the heater component 580, and a flow path (lower flow) is provided between the inner surface of the lower case 510 and the heater component 580. Road) is formed.

The lower seal body 581 includes a right connection seal body 581e that connects the right peripheral seal body 581a and the central compartment seal body 581c on the front component 530 side, and the left peripheral seal body 581a and the central compartment seal body 581c. The left connecting seal body 581f and the left connecting seal body 581f are provided. The right-connecting seal body 581e and the left-connecting seal body 581f are formed so that the surface on the heater component 580 side is lower than the other parts of the lower seal body 581. As a result, a flow path (lower flow path) is formed between the right connection seal body 581e and the heater component 580, and between the left connection seal body 581f and the heater component 580.

The heater configuration body 580 includes a heater (not shown), and the heater is arranged at a slight distance from the peripheral seal body 582a and the compartment seal bodies 581b, 581c, and 581d of the upper seal body 582. Further, the heater is arranged so as to be slightly separated from the peripheral seal body 581a and the compartment seal bodies 581b, 581c, and 581d of the lower seal body 581. This prevents the heater from being locally overheated and suppresses the deterioration of durability.

The heater is set so that the ratio of the electric power on the inlet 531 side to the electric power on the outlet 533 side is higher than that on the inlet 531 side. 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: 2.

The wash water supplied from the inlet 531 flows into the flow path between the compartment seal body 582b on the right side of the upper space and the surrounding seal body 581a. The wash water flows toward the rear side while being heated by the heater component 580, and flows from the through hole 584 into the flow path between the compartment seal body 581b on the right side of the lower space and the surrounding seal body 581a. It flows toward the front side while being heated by the heater component 580, passes over the right connecting seal body 581e, and flows into the flow path between the right partition sealing body 581b and the central partition sealing body 581c.

The washing water flows toward the rear side while being heated by the heater component 580, and flows from the through hole 584 into the flow path between the compartment seal body 582b on the right side of the upper space and the compartment seal body 582c in the center. The wash water flows toward the front side while being heated by the heater component 580, passes over the connecting seal body 582e, and flows into the flow path between the central partition seal body 582c and the left partition seal body 582d. The wash water flows toward the rear side while being heated by the heater component 580, and flows from the through hole 584 into the flow path between the partition seal body 581c in the center of the lower space and the connection seal body 581d on the left side.

The washing water flows toward the front side while being heated by the heater component 580, passes over the left connecting seal body 581f, and flows into the flow path between the surrounding sealing body 581a and the left connecting sealing body 581d. The wash water flows backward while being heated by the heater component 580, and flows from the through hole 584 into the flow path between the peripheral seal body 582a in the upper space and the partition seal body 582d on the left side. The wash water flows forward while being heated by the heater component 580, and is supplied from the outlet 533 to the nozzle device 700 via a hose (not shown).

It is conceivable that the inlet 531 is formed on the upper case 520 side and the outlet 533 is formed on the lower case 510 side so that the washing water flows through the upper flow path and then flows through the lower flow path. .. With this configuration, it is presumed that the amount of movement of the flow in the vertical direction is reduced and the flow path resistance can be reduced.

However, this configuration requires a piping space for the outlet 533 below the lower case 510, which causes a problem that the installation space becomes large. Further, the piping work of the outlet 533 is performed in the gap between the lower case 510 and the base portion 250, which causes a problem of poor workability.

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

In the present embodiment, four flow paths are formed above and below each. As a result, the inlet 531 and the outlet 533 can be formed on the upper case 520 side. As a result, the space for piping to the inlet 531 and the outlet 533 can be formed only on the upper case 520 side, and the problem that the installation space becomes large can be solved.

Further, although four flow paths are formed above and below, two flow paths may be formed, or six or more flow paths may be formed. By configuring a plurality of upper and lower flow paths, the inlet 531 and the outlet 533 can be formed on the upper case 520 side.

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

The inner surface forming the flow path of the lower case 510 is formed in a concavo-convex shape by forming a convex portion 514. The convex portion 514 is continuously formed in a mountain shape, with a steep slope on the upstream side and a gentle slope on the downstream side.

As shown in FIG. 49, since the convex portions 514 and 524 have a shape close to the heater component 580 side on the upstream side, the washing water flowing through the flow path has the convex portions 514 and 524 on the upstream side of the heater component. It is guided to the 580 side, passes over the tops of the convex portions 514 and 524, and flows on a gentle slope on the downstream side. When the tops of the convex portions 514 and 524 are crossed over, the flow path volume becomes wide, so that the washing water becomes a turbulent flow and the temperature is made uniform. By narrowing and widening the flow path by the convex portions 514 and 524, the thermal conductivity can be improved and the temperature of the washing water can be made uniform.

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

The heater component 580 includes a heater (not shown), and the heater is provided at a slight distance from the upper seal body 582 and the lower seal body 581 to prevent the heater from being overheated and to the heater component 580. It is possible to suppress the adhesion of scales.

When air bubbles enter the heat exchanger 500, the air bubbles tend to stay on the downstream side of the convex portions 514 and 524 as shown in FIG. 49.

In the present embodiment, as shown in FIG. 50, the convex portions 514 and 524 form the downstream side with a gentle inclination, so that the bubbles flow to the downstream side along the inclination of the convex portions 514 and 524. It is discharged from the heat exchanger 500.

A nozzle device 700 is arranged on the left side of the heat exchanger 500. The detailed configuration of the nozzle device 700 will be omitted.

<Water pump>
A water pump 600, which is a means for varying the amount of water discharged, is installed on the right side of the nozzle device 700. In the present embodiment, the water pump 600 uses a diaphragm pump.

It should be noted that the water pump 600 may not be used.

As shown in FIGS. 51 to 55, the water pump 600 includes a pump mechanism portion 610 and a motor portion 620, and is formed in a substantially cylindrical shape. An elastic member A630 is mounted on the pump mechanism portion 610 so as to cover the entire circumference on the end side. The elastic member B640 is mounted on the motor portion 620 so as to cover the entire circumference on the end side opposite to the elastic member A630. The elastic member A630 and the elastic member B640 are formed of an elastic material such as a foamed resin.

The water pump 600 is mounted in the recess 605a of the pump case 605 with the elastic member A630 and the elastic member B640 mounted. The motor portion 620 of the water pump 600 is fixed by the pump fixture 606 engaging the claw portion 606a with the fixing claw 605b of the pump case 605.

The water pump 600 is formed in a cylindrical shape, and a water supply cylinder 600b having a water supply port 600a and a discharge cylinder 600d having a discharge port 600c are formed so as to project perpendicularly to the end face from one end face. The water pump 600 is installed in the horizontal direction with the end faces having the water supply cylinder 600b and the discharge cylinder 600d facing forward.

The pump case 605 is fixed to a predetermined position of the base portion 250 via the elastic member C650.

In the water pump 600, vibrations having a wide range of frequencies are absorbed by the elastic member A630, the elastic member B640, and the elastic member C650, and the transmission of the vibrations to the main body 200 can be effectively suppressed.

The movement of the lead wire 607 of the water pump 600 is restricted by the fixing claw 606b and the locking claw 605c.

Since the water pump 600 is fixed to the base portion 250 by screw fixing, claw fitting, or the like, the water pump 600 can be removed regardless of the nozzle device 700, and maintenance workability can be improved. Further, it is possible to suppress the vibration of the water pump 600 being directly transmitted to the nozzle device 700.

Further, as shown in FIG. 55, a drain port 608 is formed in the pump case 605. When the pump mechanism portion 610 of the water pump 600 is damaged and water leaks, the water can be drained from the drain port 608. The water drained from the drain port 608 is discharged from the base portion 250 into the toilet bowl 110 via the inclined surface 240.

In the present embodiment, a detection means (not shown) for detecting the water drained from the drain port 608 is provided. The detection means detects that a water leak has occurred in the pump mechanism unit 610 and notifies the 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 device may be used as long as it detects water leakage from the pump mechanism unit 610. Further, the detection means may be configured to detect that energization is generated due to water leakage between the pair of terminals, for example, and other well-known configurations can be used.

The water supply port 600a of the water pump 600 is connected to the discharge port 533 of the heat exchanger 500 by a connecting tube made of soft resin.

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

FIG. 56 is an exploded perspective view showing a liquid diaphragm pump according to the present invention. FIG. 57 is a cross-sectional view of a main part.

The lid body 1 has a thin cylindrical shape and is attached to the surface 3a side of the inner lid body 3 via a packing 2 made of an elastic member. The lid body 1 has a through hole 1c formed in the central portion through which the chimney-shaped discharge hole 37 of the inner lid body 3 can be inserted. Further, the lid body 1 is provided with a suction hole 12 capable of sucking liquid, and a lid suction chamber 38 serving as a part of a suction path 30 through which the sucked liquid flows is provided on the back surface 1b of the lid. 38 communicates with the suction hole 12.

The inner lid body 3 is formed in a cylindrical shape made of resin, and a discharge hole 37 is provided at the center of the surface 3a. The inner lid 3 has a concave groove portion (not shown) for discharging the liquid from the discharge hole 37 to the outside on the back surface, and the concave groove portion communicates with the discharge hole 37. Further, the inner lid body 3 forms a valve seat portion 34 at the bottom of the concave groove portion. A total of three valve seats are arranged around the discharge hole 37 at equal intervals of 120 degrees in the circumferential direction. Further, on the surface 3a side of the inner lid body 3, a suction chamber 33 having a circular concave groove portion is formed corresponding to the three valve seat portions 34. The suction chamber 33 constitutes a part of the suction passage 30 through which the sucked liquid flows.

The valve seat portion 34 has a short cylindrical shape, and a mounting hole (not shown) to which the suction valve main body 4 can be attached is formed in the center of the tip wall portion 35 so as to penetrate the suction chamber 33. The tip wall portion 35 of the valve seat portion 34 is formed with a suction hole 32 of a suction path 30 capable of sucking a liquid in the vicinity of the mounting hole.

The valve seat portion 34 is in contact with the discharge valve membrane 52 of the diaphragm assembly 5 so as to cover the valve seat portion 34 so as to be in close contact with the valve seat portion 34. The tip wall portion 35 of the valve seat portion 34 is configured so that the valve portion 4a of the suction valve main body 4 is contacted and separated to open and close the suction hole 32. The suction valve main body 4 is provided with two valve seat portions 34 while the three valve seat portions 34 are formed, and one valve seat portion 34 is configured so as not to be covered by the suction valve main body 4.

In the diaphragm assembly 5, three bowl-shaped diaphragms 50 are arranged evenly at intervals of 120 degrees in the circumferential direction, and are connected by a diaphragm 54 formed at the axis. A packing edge portion 53 is formed on the outer peripheral edge portion of the diaphragm 54, and a discharge valve membrane 52 projects from the diaphragm 54 on the outer peripheral side. The diaphragm 50 is provided with a drive unit 51 that reciprocates the diaphragm 50.

The packing edge 53 of the diaphragm assembly 5 is sandwiched between the inner lid 3 and the retainer member 6, and the retainer member 6 is provided with a hole through which the drive portion 51 of the diaphragm 50 can be inserted. The drive unit 51 of the diaphragm 50 inserted through the retainer member 6 is supported by the locking hole 71 of the rocking plate 7. The rocking plate 7 is arranged in a bottomed cylindrical cylindrical box body 13, and the end portion of the cylindrical box body 13 comes into contact with the retainer member 6.

A small DC motor 11 is arranged on the outside of the cylindrical box body 13, the output shaft 11a of the motor 11 extends inside the cylindrical box body 13, and the eccentric rotating body 9 is attached to the output shaft 11a. The eccentric rotating body 9 has a shaft mounting hole 91 into which the output shaft 11a is inserted and an eccentric hole 92 arranged eccentrically from the shaft mounting hole 91, and the crankshaft 8 is inclined in the eccentric hole 92. It is inserted.

The diaphragm pump is interposed so as to sandwich the diaphragm assembly 5 between the inner lid body 3 and the retainer member 6, thereby forming a pump chamber 25 on the inner surface side of the discharge valve membrane 52 and on the outer surface side of the discharge valve membrane 52. A common discharge space 36 having a discharge hole 37 composed of a concave groove portion 39 and a diaphragm 54 is formed.

The cylindrical box body 13 is fixed to the motor 11 with screws 14. Further, the lid body 1, the packing 2, the inner lid body 3, the diaphragm assembly 5, and the retainer member 6 are sequentially laminated on the cylindrical box body 13 and fixed to the cylindrical box body 13 with long screws 15. The casing 10 is formed.

In the present disclosure, three valve seats 34 and two suction valve main bodies 4 are provided. However, for example, four valve seats 34 and three suction valve main 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 rotating body 9 attached to the output shaft 11a rotates, the rocking plate 7 is swung via the crankshaft 8, and the drive unit 51 of the diaphragm 50 reciprocates. Exercise. The diaphragm 50 repeats expansion and compression due to the reciprocating motion of the drive unit 51. As a result, the pump chamber 25 formed by the valve seat portion 34 of the inner lid body 3 and the diaphragm 50 is compressed and expanded.

When the pump chamber 25 expands, the pump chamber 25 becomes a negative pressure, and the valve portion 4a of the suction valve main body 4 is separated from the suction valve seat portion 35a so as to be pulled. The suction hole 32 of the suction passage 30 formed in the tip wall portion 35 of the valve seat portion 34 is in a state of being opened to the pump chamber 25. As a result, the liquid flows from the suction hole 12 through the suction path 30 including the lid suction chamber 38 of the lid 1 and the suction chamber 33 of the inner lid 3 and flows into the pump chamber 25.

Further, when the pump chamber 25 becomes a negative pressure, the discharge valve membrane 52 of the diaphragm 50 comes into close contact with the valve seat portion 34. As a result, the outflow of the liquid into the common discharge space 36 formed by the outer surface of the discharge valve film 52, the diaphragm 54, and the concave groove portion 39 of the inner lid body 3 or the backflow from the common discharge space 36 is prevented.

When the pump chamber 25 is compressed, the valve portion 4a of the suction valve main body 4 is pressed against the suction valve seat portion 35a. The suction hole 32 of the suction passage 30 formed in the tip wall portion 35 of the valve seat portion 34 is blocked by the valve portion 4a. As a result, the suction valve main body 4 blocks the inflow and outflow of the liquid from the suction hole 32. Further, due to the compression of the pump chamber 25, the discharge valve membrane 52 has an enlarged diameter and is separated from the valve seat portion 34, and the liquid in the pump chamber 25 is pressure-fed to the common discharge space 36.

Further, when the pump chamber 25 is compressed, the discharge valve membrane 52 expands in diameter in the direction of the common discharge space 36, presses the liquid in the common discharge space 36, and pushes the liquid into the discharge hole 37. As a result, the outer membrane surface of the discharge valve membrane 52 functions to pump the liquid.

When the pump chamber 25 at the position where the valve portion 4a is not arranged is compressed, the suction hole 32 remains open. Therefore, when the pump chamber 25 is compressed, the liquid in the pump chamber 25 is pumped. The amount of liquid pushed back from the chamber 25 toward the suction path 30 increases. The liquid pushed back to the suction passage 30 is pumped to the pump chamber 25 in which the valve portion 4a is provided.

On the other hand, the discharge valve film 52 expands in diameter in the direction of the common discharge space 36, but the pressure applied to the discharge valve film 52 decreases, the amount of discharge to the common discharge space 36 becomes small, and the sanitary cleaning device moves to the local part of the human body. The washing water pressure that spouts becomes low. That is, the squirt to the local part of the human body is temporarily interrupted, or the squirt becomes a low water pressure squirt.

At the position where the valve portion 4a is arranged, a washing water force is generated in which a normal amount of water is ejected locally to the human body. Therefore, the water pressure at the position where the valve portion 4a is arranged and the position where the valve portion 4a is not arranged are generated. The water pressure of the water changes, and the pulsation of the washing water pressure occurs.

The liquid pushed back to the suction passage 30 at the position where the valve portion 4a is arranged is pumped to the pump chamber 25 where the valve portion 4a is arranged, acts between the pump chambers 25, and sequentially in the rotation direction of the actuator. Generates wash water pressure when the diaphragm is compressed.

When a diaphragm pump having a configuration in which two valve portions 4a of the present disclosure are arranged and a diaphragm pump having a configuration in which three valve portions 4a are arranged are prepared and their performances are compared, the valve portion 4a of the present disclosure is 2 A diaphragm pump having a configuration in which three valve portions 4a are arranged can generate a cleaning water pressure that is about twice the maximum cleaning water pressure of a diaphragm pump having a configuration in which three valve portions 4a are arranged.

A drying device 220 is arranged at the left position of the nozzle device 700. The drying device 220 dries the water adhering to the locally after washing by the generated warm air.

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

Since the sanitary cleaning device of the present disclosure can improve the workability of attaching various functional parts to the base portion, it can also be applied to a sanitary cleaning device that does not have a toilet lid.

100 Sanitary cleaning device 110 Toilet bowl 200 Main body 220 Drying device 230 Deodorizing device 250 Base part 270 Rear case 290 Front case 300 Toilet seat 320 Toilet lid 400 Water supply unit 500 Heat exchanger 600 Water pump 700 Nozzle device

Claims (5)

1. With the main body
   A heat exchanger that is arranged in the main body and heats the washing water.
   A nozzle device disposed in the main body for cleaning the human body,
   With
   The heat exchanger divides the internal space up and down, forms a flow path in the upper space and the lower space, communicates the flow path of the upper space and the flow path of the lower space, and connects the flow path of the upper space to the flow path of the lower space. Forming an uneven shape that changes the flow path area,
   Sanitary cleaning equipment.
2. The uneven shape is formed in the flow path of the upper space and the flow path of the lower space.
   The sanitary cleaning device according to claim 1.
3. The inside of the heat exchanger is divided into upper and lower parts by a heating means.
   The sanitary cleaning device according to any one of claims 1 and 2.
4. The heat exchanger forms the uneven shape on the surface facing the heating means.
   The sanitary cleaning device according to claim 2.
5. The heat exchanger has a narrow flow path area on the upstream side due to the uneven shape.
   The sanitary cleaning device according to any one of claims 1 to 3.

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