TWI842971B - Sanitary cleaning device and method for manufacturing the same - Google Patents

Abstract

The present invention comprises: a main body; and various functional parts, which are arranged in the main body and include a nozzle device for washing the human body. In addition, the main body is composed of a flat base portion constituting the bottom of the main body, a rear cover shell constituting the rear of the main body, and a front cover shell constituting the front, upper surface and part of the side of the main body. Thus, since the installation of various functional parts to the base can be carried out with the rear cover shell and the front cover shell removed, a sanitary washing device with improved installation operability can be provided.

Description

Sanitary cleaning device and method for manufacturing sanitary cleaning device

This disclosure relates to a sanitary washing device.

In the past, this type of sanitary washing device had various functional parts such as a washing nozzle, and the various functional parts were stored in the main body, and the main body was fixed to the toilet seat.

The main body of Patent Document 1 is structured in the form of being divided into two parts, namely, a base part at the lower side and a cover part at the upper side. The base part has a bottom and a peripheral wall part rising upward along the entire periphery of the bottom. The cover part has an upper part and a peripheral wall part continuous along the entire periphery of the upper part. The cover part is installed and fixed to cover the base part.

Prior art literature Patent Literature

Patent document 1: Japanese Patent Publication No. 08-105096

However, since the base of the main body of Patent Document 1 has a peripheral wall portion around the entire periphery, there are the following problems: the workability of installing various functional parts on the base or replacing various functional parts during maintenance is poor.

This disclosure is a structure that solves the problem of Patent Document 1 and provides a sanitary cleaning device that can improve the installation workability of various functional parts.

The sanitary washing device disclosed in the present invention comprises: a main body; and various functional parts, which are arranged in the main body and include a nozzle device for washing the human body. The main body is composed of a flat base forming the bottom of the main body, a rear cover forming the rear and part of the side of the main body, and a front cover forming the front, upper surface and part of the side of the main body.

The sanitary cleaning device disclosed herein can improve the installation workability of various functional parts on the base.

1: Cover

1b: Cover the back

1c:Through hole

2: Pad

3: Middle cover

3a: Front

4: Suction valve body

4a: Valve

5: Diaphragm assembly

6: Guard ring component

7: Rocking board

8: Crankshaft

9: Eccentric rotating body

10: Shell

11: Motor

11a: Output shaft

12: Suction hole

13: Cylindrical box

14: Screws

15: Long screw

25: Pump room

30: Inhalation path

32: Suction hole

33: Inhalation chamber

34: Valve seat

35: Front end wall

35a: Suction valve seat

36: Common spitting space

37: Discharge hole

38: Cover the suction chamber

39: Groove

50: Diaphragm

51: Drive Department

52: Discharge valve diaphragm

53: Pad edge

54: Diaphragm

71: Locking hole

91: Shaft mounting hole

92: Eccentric hole

100: Sanitary cleaning device

110: Toilet

200: Headquarters

210: Sleeve operation unit

211: Installation Department

212: Lower shell

213: Upper shell

214: Operation board

215: Operation nameplate

216: Operation substrate

217: Operation panel cover

218: Lead wire

219: Hollow part

220: Drying device

221: Installation Department

222,223: Groove

224: Extension

225: Peripheral wall

230: Deodorization device

240: Inclined surface

241: Damping mechanism

242: Damper for toilet seat

243: Damper for toilet lid

244: Damper installation part

245,605c: Locking claw

246: Prevent the boss from falling off

250: Base part

251: convex part

252: Groove

253: Ribs

254: Installation Department

255: Stopper

256: Clamping claw

270: Rear cover

270a: front face

271: Groove

272: Seat Detection Department

273:Through hole

274:Filter

275: Stopper

276: Toilet seat support

290:Front hood

290a: Clamping part

291,292: convex part

300: Toilet seat

301: Toilet seat shaft

320: Toilet lid

321: Convenience cover rotating shaft

400,400A,400B,400C: Water supply unit

401A, 401B, 401C: Coarse filter

402A: Constant flow valve

402B,402C: Pressure reducing valve

403A, 403B, 403C: Water-stop solenoid valve

404A, 404B, 404C: Vacuum circuit breaker

405A, 405B, 405C: Open waterways

406A, 406B, 406C: Vacuum adapter

407A, 407B, 407C: Vacuum cover

408A, 408B, 408C: Vacuum circuit breaker valve

409A, 409B, 409C: Inlet

410A,411A,410B,411B,410C,411C: outflow port

412A, 412B, 412C: Air intake

413C: Fixed orifice

500:Heat exchanger

510: Lower shell

514,524: convex part

520: Upper cover

521: Temperature detection component installation part

522: Temperature fuse

523: Wiring

530: Front structure

531:Entrance

532: Entrance tube

533:Export

534: Exit tube

540: Temperature detection component cover

560: Hot water discharge area group

565:Terminal board

570:Flow sensor

571:Flow sensor housing

572: Flow sensor cover

573: Water temperature sensor

574: Water temperature sensor fixture

575: Flow sensor shaft

576:Impeller

577: Detection components

578: Inlet

579: Outflow

580: Heater structure

581: Lower sealing body

581a,582a: surrounding sealing body

581b,581c,581d,582b,582c,582d: Zoned seal body

581e: Right connecting seal

581f: Left connection seal

582: Upper sealing body

582e: Connection seal

583: Terminal section

584:Through hole

600: Water pump

600a: Water supply port

600b: Water supply cylinder

600c: spit out

600d: Dispenser

605: Pump housing

605a: Recess

605b,606b:Fixed claw

606: Pump fixture

606a: Claws

607: Lead wire

608: Drainage outlet

610: Pump mechanism

620: Motor Department

630: Elastic component A

640: Elastic component B

650: Elastic component C

700: Nozzle device

Figure 1 is a three-dimensional view of the appearance of the sanitary washing device in embodiment 1.

Figure 2 is a three-dimensional diagram of the main parts of the sanitary washing device.

Figure 3 is a plan view of the sanitary washing device with the front cover and the rear cover removed from the main body.

Figure 4 is a three-dimensional view of the sanitary washing device with the front cover removed from the main body.

Figure 5 is a three-dimensional view of the sanitary washing device with the rear cover removed from the main body.

Figure 6 is a three-dimensional view of the base of the sanitary washing device.

Figure 7 is a cross-sectional view of the main parts of the sanitary washing device.

Figure 8 is a cross-sectional view of the main parts of the sanitary washing device.

Figure 9 is a cross-sectional view of the main parts of the sanitary washing device.

Figure 10 is a cross-sectional view of the main parts of the sanitary washing device.

Figure 11 is a three-dimensional diagram of the main parts of the sanitary washing device.

Figure 12 is a three-dimensional diagram showing the main parts of the damping mechanism of the sanitary washing device.

Figure 13 is a three-dimensional diagram showing the main parts of the damping mechanism of the sanitary washing device.

Figure 14 is a cross-sectional view showing the main parts of the damping mechanism of the sanitary washing device.

Figure 15 is a three-dimensional diagram showing the main parts of the seat detection unit of the sanitary washing device.

Figure 16 is a three-dimensional diagram showing the main parts of the seat detection unit of the sanitary washing device.

Figure 17 is a three-dimensional diagram showing the main parts of the seat occupancy detection unit of the sanitary washing device.

Figure 18 is a three-dimensional view showing the back of the main body of the sanitary washing device.

Figure 19 is a cross-sectional view of the main parts of the sanitary washing device.

Figure 20 is a three-dimensional diagram of the main parts of the sanitary washing device with the toilet lid open.

Figure 21 is a three-dimensional diagram of the main parts of the sanitary washing device with the toilet lid open.

Figure 22 is a three-dimensional diagram of the main parts of the sanitary washing device with the front cover removed.

Figure 23 is a cross-sectional view showing the main parts around the sleeve operating unit of the sanitary washing device.

Figure 24 is a three-dimensional view of the sleeve operating part of the sanitary washing device.

Figure 25 is a disassembled three-dimensional view of the sleeve operating part of the sanitary washing device.

Figure 26 is a cross-sectional view of the sleeve operating part of the sanitary washing device.

Figure 27 is a cross-sectional view of the heat exchanger and surrounding area of the sanitary washing device.

Figure 28 is a three-dimensional diagram of the water supply unit of the sanitary washing device.

Figure 29 is a cross-sectional view of the water supply unit of the sanitary washing device.

Figure 30 is a cross-sectional view of the vacuum breaker of the water supply unit of the sanitary washing device.

Figure 31 is a cross-sectional view of the vacuum breaker of the water supply unit of the sanitary washing device.

Figure 32 is a cross-sectional view of the water supply unit of the sanitary washing device.

Figure 33 is a cross-sectional view of the vacuum breaker of the water supply unit of the sanitary washing device.

Figure 34 is a cross-sectional view of the vacuum breaker of the water supply unit of the sanitary washing device.

Figure 35 is a cross-sectional view of the water supply unit of the sanitary washing device.

Figure 36 is a cross-sectional view of the vacuum breaker of the water supply unit of the sanitary washing device.

Figure 37 is a cross-sectional view of the vacuum breaker of the water supply unit of the sanitary washing device.

Figure 38 is a three-dimensional diagram of the heat exchanger of the sanitary washing device.

Figure 39 is a three-dimensional diagram of the heat exchanger of the sanitary washing device with the hot water discharge area removed.

Figure 40 is an exploded perspective view of the heat exchanger of the sanitary washing device.

Figure 41 is an exploded perspective view of the heat exchanger of the sanitary washing device.

Figure 42 is a perspective view of a flow sensor for a heat exchanger in a sanitary washing device.

Figure 43 is a cross-sectional view of a flow sensor of a heat exchanger of a sanitary washing device.

Figure 44 is a cross-sectional view of a flow sensor of a heat exchanger of a sanitary washing device.

Figure 45 is an exploded perspective view of the heat exchanger of the sanitary washing device.

Figure 46 is an exploded perspective view of the heat exchanger of the sanitary washing device.

Figure 47 is a cross-sectional view of the heat exchanger of the sanitary washing device.

Figure 48 is a cross-sectional view of the main parts of the heat exchanger of the sanitary washing device.

Figure 49 is a cross-sectional view of the main parts of the heat exchanger of the sanitary washing device.

Figure 50 is a cross-sectional view of the main parts of the heat exchanger of the sanitary washing device.

Figure 51 is a three-dimensional diagram of the water pump of the sanitary washing device.

Figure 52 is a three-dimensional diagram of the water pump of the sanitary washing device.

Figure 53 is an exploded perspective view of the water pump of the sanitary washing device.

Figure 54 is a three-dimensional diagram of the water pump of the sanitary washing device.

Figure 55 is a three-dimensional diagram of the water pump of the sanitary washing device.

Figure 56 is an exploded perspective view of the water pump of the sanitary washing device.

Figure 57 is a cross-sectional view of the water pump of the sanitary washing device.

The form used to implement the invention

(Knowledge and insights that form the basis of this disclosure, etc.)

Until the inventors came up with this disclosure, the technology of the main body of the sanitary washing device was structured in the form of a base portion at the lower side and a cover portion at the upper side, and the base portion had a bottom and a peripheral wall portion rising upward along the entire periphery of the bottom. The cover portion had an upper portion and a peripheral wall portion continuous along the entire periphery of the upper portion, and the cover portion was installed and fixed to cover the base portion.

Since the base of this main body has a peripheral wall around the entire periphery, there are the following issues: the workability of installing various functional parts on the base or replacing various functional parts during maintenance is poor.

In order to solve this problem, the inventors reached the theme of this disclosure.

Therefore, the present disclosure provides a sanitary washing device, which has: a main body; and various functional parts, which are arranged in the main body and include a nozzle device for washing the human body. The main body is composed of a flat base forming the bottom of the main body, a rear cover forming the rear and part of the side of the main body, and a front cover forming the front, upper surface and part of the side of the main body.

Below, the implementation is described in detail with reference to the drawings.

In addition, the attached drawings and the following descriptions are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the scope of the patent application.

(Implementation form 1)

As shown in FIG1 , the sanitary washing device 100 is composed of a main body 200, a toilet seat 300, and a toilet cover 320 as main components. The main body 200, the toilet seat 300, and the toilet cover 320 are integrally formed and arranged on the upper surface of the toilet 110.

A sleeve operating unit 210 is provided on the right side of the main body 200 in a manner protruding forward, and is provided with a plurality of switches and indicator lights for operating and setting various functions of the sanitary washing device 100.

Furthermore, in this embodiment, the arrangement of each component is described by setting the side of the main body 200 of the sanitary washing device 100 as the rear, setting the side of the toilet seat 300 as the front, and setting the right side facing the front as the right, and the left side facing the front as the left.

As shown in Figures 3 to 5, the main body 200 has a water supply unit 400, a heat exchanger 500, a water pump 600, a nozzle device 700, a drying device 220 for drying the local area, a deodorizing device 230 for defecation odor, etc., and a control unit for controlling various functions of the sanitary washing device 100 is provided above the heat exchanger 500. In order to allow washing water to flow from the water supply unit 400 to the nozzle device 700, a washing water flow path (not shown) is formed. The water supply unit 400 or a water pipe connected to the water supply unit 400 is the supply source of washing water.

In this 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 referred to as various functional parts.

Furthermore, various functional parts can be added or reduced as necessary.

<Main body composition>

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

The base 250 is provided with a convex portion 251 whose width gradually narrows from the side to the back. The rear cover 270 is provided with a groove portion 271 whose width gradually narrows from the side to the back. Here, the convex and concave fitting portion formed in the front-rear direction can be formed by the convex portion 251 of the base 250 and the groove portion 271 of the rear cover 270.

The rear cover 270 is installed on the base 250 by sliding from the rear to the front of the base 250. When the rear cover 270 is installed by sliding, the groove 271 and the insertion part of the protrusion 251 are slid as a guide in the state where the protrusion 251 is inserted into the groove 271.

Thereby, the installation workability of the rear cover 270 on the base 250 is improved. In addition, when the rear cover 270 has been installed on the base 250, the gap between the inside and outside of the main body 200 will become a snake shape due to the groove 271 and the protrusion 251, which can inhibit the infiltration of liquid into the main body 200.

A portion of the bottom of the rear cover 270 extends to the lower position of the base 250, and can be screwed from the side of the rear cover 270 at the position where the bottom of the base 250 and the bottom of the rear cover 270 overlap.

The front cover 290 can be installed from the front side of the base 250. When the front cover 290 is installed on the base 250, the side of the front cover 290 will abut against the outer side of the side of the rear cover 270, thereby suppressing the occurrence of gaps between the side of the front cover 290 and the rear cover 270.

As shown in FIG10 , a groove 252 is formed on the base 250 so that the width gradually narrows from the side to the front. A convex portion 291 is formed on the front cover 290 so that the width gradually narrows from the side to the front.

The front cover 290 is installed on the base 250 by sliding from the front to the rear of the base 250. When the front cover 290 is installed by sliding, the groove 252 and the insertion part of the protrusion 291 are slid as a guide in the state where the protrusion 291 has been inserted into the groove 252.

Thereby, the installation workability of the front cover shell 290 on the base part 250 is improved. In addition, when the front cover shell 290 has been installed on the base part 250, the gap between the inside and the outside of the main body 200 will become a snake shape due to the groove 252 and the protrusion 291, which can inhibit the infiltration of liquid into the main body 200.

As shown in FIG8 , the front end surface 270a of the rear cover shell 270 is formed to extend in the horizontal direction toward the front. The rear end of the front cover shell 290 has a U-shaped clamping portion 290a that clamps the front end surface 270a of the rear cover shell 270, and clamps the front cover shell 290 from the front. Thereby, the clamping portion 290a clamps the front end surface 270a of the rear cover shell 270, and the situation in which a gap is generated between the front cover shell 290 and the rear cover shell 270 is suppressed. The upper surface of the front cover shell 290 is formed to bend toward the back of the rear cover shell 270, and when the front cover shell 290 is installed, the upper surface of the front cover shell 290 is smoothly connected toward the back of the rear cover shell 270, and constitutes a part of the rear part of the main body 200. The front cover 290 can be screwed to the rear cover 270 from the rear side.

In this way, the joint between the front cover 290 and the rear cover 270 can be made less noticeable when viewed from the front, thereby preventing the aesthetics from being damaged. Furthermore, when liquid drips onto the upper surface of the main body 200, the liquid will not penetrate from the joint between the front cover 290 and the rear cover 270 and drip onto the side of the rear cover.

As shown in FIG. 10 , the inclined surface 240 constituting the bottom of the nozzle device 700 is configured as a slope matching the inclination of the nozzle device 700, and is composed of the front cover 290 and the base 250, and is engaged with the inclined surface 240. The engaging portion of the inclined surface 240 is configured to be located at an upper position in the toilet bowl of the toilet 110.

The inclined surface 240 may be formed on the front cover 290, but in this configuration, the fitting portion between the front cover 290 and the base 250 is located above the toilet 110. If water penetrates the fitting portion, there is a concern that the upper surface of the toilet 110 may be soiled. Furthermore, if the fitting portion is not waterproof, there is an increased concern that the upper surface of the toilet 110 may be soiled.

In this embodiment, when water leaks from the nozzle device 700 in the main body 200, it can flow to the inclined surface 240 and drain into the toilet bowl of the toilet 110. Even if water has penetrated into the fitting part between the front cover shell 290 and the base 250, the surrounding area will not be soiled because the fitting part is in the toilet 110. The fitting part is completed by fitting the groove 252 formed in the base 250 and the protrusion 291 formed in the front cover shell 290, so it is difficult for water to penetrate, and the cleaning performance can be improved.

Even if the main body 200 is installed in a tilted manner toward the rear, the same effect can be expected.

Since the front lower part of the main body 200 is formed by the front cover 290, it is possible to improve the cleaning performance even when sewage is attached. In addition, if drainage ribs are formed to remove sewage attached to the front cover 290, the drainage performance in the toilet 110 can be further improved.

On the bottom surface of the base 250, at the front end to the right of the nozzle device 700, the front position of the water supply unit 400 or the heat exchanger 500, a rib 253 is formed to protrude upward. In the event of water leakage in the water circuit structure to the right of the nozzle device 700, the rib 253 is used to guide the leaked water to the inclined surface 240 to drain the water into the toilet 110.

Although the front of the inclined surface 240 is covered by the nozzle cover (not shown), the leaked water can be drained from the periphery of the nozzle cover, and the water can be drained without setting a dedicated drain port. By setting the nozzle cover, the unevenness of the front position of the main body 200 where the sewage rebounds the most can be eliminated, and the cleaning performance can be improved.

<Damping mechanism>

In this embodiment, the toilet seat 300 and toilet lid 320 are manually opened and closed, and a damping mechanism is provided to allow the toilet seat 300 and toilet lid 320 to close gently.

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

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

Although the damper 242 for the toilet seat and the damper 243 for the toilet lid are configured to be engaged with the damper mounting portion 244 by means of the locking claw 245, the following situation can be imagined: during long-term use, the damper 242 for the toilet seat or the damper 243 for the toilet lid is separated from the locking claw 245 and falls off from the damper mounting portion 244.

In this embodiment, a fall-off prevention convex seat 246 is protruding from the rear cover 270, and the fall-off prevention convex seat 246 faces the toilet seat damper 242 and the toilet lid damper 243 and abuts against the toilet seat damper 242 and the toilet lid damper 243. Even if the toilet seat damper 242 or the toilet lid damper 243 is separated from the locking claw 245, the fall-off prevention convex seat 246 abuts against the toilet seat damper 242 or the toilet lid damper 243, so that the toilet seat damper 242 or the toilet lid damper 243 can be prevented from falling off.

In this embodiment, the damper 242 for the toilet seat and the damper 243 for the toilet lid are fixed to the damper mounting portion 244 by means of a locking claw 245 to improve the installation workability and eliminate the fixing components such as screws to reduce material costs.

If you want to firmly fix the damper 242 for the toilet seat and the damper 243 for the toilet lid to the damper mounting portion 244, you can of course use a fixing means such as screw fixing.

In the above-mentioned embodiment, although a damping mechanism is provided to allow the toilet seat 300 and the toilet lid 320 to close gently, it can also be provided that the toilet seat 300 and the toilet lid 320 are opened by a motor.

<Detailed structure of the main body>

As shown in FIGS. 15 to 17 , a seat detector 272 is disposed on the toilet seat support 276 of the rear cover 270. The seat detector 272 is configured to detect whether a human body has sat on the toilet seat 300.

The seat detection unit 272 receives the seat shaft 301 of the toilet seat 300 through the seat support unit 276. When a person sits on the toilet seat 300, the seat shaft 301 will drop downward due to the weight of the human body, and the seat detection unit 272 will also detect the downward drop, thereby detecting the person's sitting.

As shown in Figures 18 and 19, a through hole 273 is formed on the right side of the back of the rear cover 270, and a filter 274 for removing foreign matter in the waterway is provided inside the through hole 273. The filter 274 can be removed from the through hole 273 on the back of the rear cover 270, so that foreign matter attached to the filter 274 can be removed.

As shown in Figures 20 and 21, stoppers 275 are provided on both sides of the rear cover 270 near the toilet cover rotating shaft 321. The stoppers 275 limit the opening angle of the toilet cover 320 when the toilet cover 320 is opened. In order to facilitate wiping even if it is soiled by dust, the stoppers 275 are formed by extending from the side surface to the horizontal part, and are configured to not generate a small gap. In addition, the stoppers 275 are configured to be connected in an R shape relative to the vertical part and the horizontal part, and the structure takes cleanability into consideration.

The structure of the sleeve operating unit 210 and the mounting structure for mounting the sleeve operating unit 210 on the main body 200 are described based on Figures 22 to 26.

On the right side of the main body 200, a mounting portion 211 can be formed between the base 250 and the front cover shell 290. The mounting portion 211 is equipped with a sleeve operating portion 210.

The sleeve operation unit 210 has a lower cover 212, an upper cover 213, an operation substrate unit 214, and an operation nameplate 215. The operation substrate unit 214 has an operation substrate 216 and an operation unit substrate cover 217, and the operation substrate 216 is connected to the main body substrate (not shown) by a lead 218.

The operating substrate 214 is screwed to the upper cover 213, and a sealing material (not shown) is provided between the operating substrate cover 217 and the upper cover 213. The lead 218 of the operating substrate 214 is wired to the base 250 through the cavity 219 formed by the lower cover 212. Furthermore, the lower cover 212 has the following structure: a rib (not shown) is provided to fix the lead 218 to prevent the lead from biting during assembly.

The upper shell 213 and the lower shell 212 are fastened to the lower shell 212 with screws from the upper shell 213 after the claws are engaged (not shown), and the operation nameplate 215 is attached to cover the screws. The engagement portion of the lower shell 212 and the upper shell 213 is formed by forming a peripheral wall 225 on the upper shell 213 to cover the mating surface of the lower shell 212 and the upper shell 213 from the outer peripheral side. In this way, even if liquid splashes on the sleeve operation part 210, the liquid can be prevented from seeping into the interior.

The mounting portion 221 for mounting to the mounting portion 211 can be formed integrally with the lower housing 212. A groove 222 is formed on the side of the base portion 250 of the mounting portion 221 to engage with the protrusion 251 of the base portion 250. A groove 223 is formed on the side of the front housing 290 of the mounting portion 221 to engage with the protrusion 292 formed on the front housing 290.

The mounting portion 221 is formed larger in the vertical direction and the front-rear direction than the extension portion 224 extending from the lower cover 212 toward the mounting portion 221, and is engaged with the base portion 250 and the front cover 290 at a more peripheral position than the extension portion 224, thereby constituting a part of the side wall of the main body 200. Since it is engaged at a more peripheral position than the extension portion 224, even if liquid is sprinkled from above, it is possible to suppress the liquid from penetrating into the main body 200 from the engaged portion. The extension portion 224 and the mounting portion 221 are formed into a curved surface, and are configured to improve the workability of cleaning.

When the mounting portion 221 is mounted on the mounting portion 211, the gap between the inside and the outside can be made into a serpentine shape by fitting the groove 222 and the protrusion 251, and the groove 223 and the protrusion 292, thereby suppressing the infiltration of liquid into the mounting portion 221.

In this embodiment, although the various functions are operated by the sleeve operating unit 210, it can also be operated by a remote control device. This structure can be installed on the mounting portion 211 by the same mounting structure as the mounting portion 221 to mount a mounting plate having a receiving portion and a minimum operating switch. In this way, it can correspond to a plurality of models.

<Base structure>

Various functional parts for performing various functions of the sanitary cleaning device 100 are installed on the base portion 250. A mounting portion 254 for mounting various functional parts is provided on the base portion 250.

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 other structures are also possible.

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

Since various functional parts have different shapes, center of gravity heights, etc., the mounting portion 254 can appropriately select the shape, etc. according to the various functional parts.

Various functional parts can be transported on a belt conveyor and installed on the base 250 by an automatic machine, and the locking piece 255 and the locking claw 256 are locked, fixed or temporarily fixed to prevent position deviation.

During manufacturing, the base part 250 is placed on a pallet on a belt conveyor to move, and various functional parts are fixed or temporarily fixed by the mounting parts 254 of the base part 250 by an automatic machine. After the various functional parts are placed on the base part 250, the base part 250 on the pallet will move to a predetermined position, and the various functional parts will be 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 component covering the base portion 250, it becomes easy to install or screw various functional parts by automatic machinery.

Since various functional parts can be fixed or temporarily fixed to the mounting portion 254 on the base portion 250 to prevent the movement of various functional parts, they will not be affected by the vibration during movement by the belt conveyor, and the screw fixing by the automatic machine can be completed.

In this embodiment, the sleeve operation unit 210, the water supply unit 400, the heat exchanger 500, the nozzle device 700, the drying device 220, the deodorizing device 230, etc. can be listed as various functional parts that are automatically mechanically installed on the base 250.

In this embodiment, from the right side of the main body 200, 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 as various functional parts, and the sleeve 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 the order of the sleeve 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.

Furthermore, in the above-mentioned embodiment, the locking piece 255 is vertically arranged upward from the base portion 250.

However, depending on the structure or shape of various functional parts, the locking piece 255 can also be arranged vertically upward in a tilted state relative to the base part 250. If this is the case, when assembling by automatic machinery, it is preferable to set the following structure: when installing various functional parts, the tray on which the base part 250 is placed is tilted.

Furthermore, although a locking piece 255 is formed on the base portion 250 as the mounting portion 254, and a snap-fit claw 256 is formed on various functional parts, the snap-fit claw 256 may be formed on the base portion 250, and the snap-fit claw 256 may be formed on various functional parts.

The mounting portion 254 can be any structure that can fix various functional parts or temporarily fix them to the base portion 250, and a structure other than the locking piece 255 and the locking claw 256 can also be selected.

In addition, various functional parts have a retaining portion for retaining leads so as not to hinder assembly. The leads are retained in the retaining portion before assembly to avoid hindering assembly.

In addition, a wiring component (not shown) is provided. The wiring component is a component that supports the lead wire at the upper position of the nozzle device 700 in order to prevent the lead wire from contacting the driving part of the nozzle device 700 when the control unit (not shown) is arranged on the right side of the nozzle device 700 and the drying device 220 and the deodorizing device 230 are arranged on the left side. The wiring component is fixed to the housing of the control unit and the drying device 220. In this way, the nozzle device 700 will not contact the lead wire during driving, and easy assembly can be achieved.

<Water supply unit>

A water supply unit 400 is provided at the rightmost position of the base 250. The water supply unit 400 is connected to the waterway through a hose (not shown) outside the main body 200.

The water supply unit shown in Figures 28 to 31 is equipped with 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 is equipped with a coarse filter (strainer) 401A, a constant flow valve 402A, a water stop solenoid valve 403A, a vacuum circuit breaker 404A and an open water channel 405A.

Clean water flowing in the water pipe (not shown) is supplied to the coarse filter 401A as cleaning water. Dirt and impurities contained in the cleaning water can be removed by the coarse filter 401A.

The washing water from which dirt and impurities have been removed by the coarse filter 401A is supplied to the water-stop solenoid valve 403A. The water-stop solenoid valve 403A switches the supply state of washing water to the downstream side. The operation of the water-stop solenoid valve 403A is controlled by the control unit (not shown). When 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 circuit breaker 404A. The constant flow valve 402A controls the flow rate of washing water flowing in the water supply unit 400A to be fixed.

The vacuum breaker 404A includes a vacuum adapter 406A, a vacuum cover 407A covering the vacuum adapter 406A, and a vacuum breaker valve 408A supported between the vacuum adapter 406A and the vacuum cover 407A.

The vacuum adapter 406A has an inlet 409A for the washing water from the constant flow valve 402A, an outlet 410A leading to the main water channel, and an outlet 411A leading to the open water channel 405A. The vacuum cover 407A has an air intake port 412A.

The water supply unit 400 allows the washing water supplied from the inlet 409A to flow to the outlet 410A leading to the main water channel and the outlet 411A leading to the open water channel 405A. The washing water supplied to the outlet 410A leading to the main water channel flows to the downstream side by the output of the water pump 600 arranged on the downstream side. The washing water not supplied to the outlet 410A is guided from the outlet 411A to the open water channel 405A and discharged into the toilet.

A flow sensor 570 or a heat exchanger 500 is arranged on the upstream side of the water pump 600 in the main water channel. The flow sensor 570 or the heat exchanger 500 has a relatively large flow resistance. Therefore, in a configuration where the washing water flows to the downstream side only by the output of the water pump 600, the load on the water pump 600 is relatively large.

In this embodiment, by setting a fixed orifice 413C on the open water channel side, a water pressure equivalent to the flow channel resistance of the flow sensor 570 or the heat exchanger 500 can be applied to the outlet 410A leading to the main water channel, thereby suppressing the load on the water pump 600.

Furthermore, because the flow rate through the fixed orifice 413C becomes smaller as the washing flow rate set by the user decreases, the water pressure applied to the outlet 410 leading to the main waterway becomes larger, and the water pressure applied to the inlet of the water pump 600 also becomes larger, so the pulsation of the washing water flowing out of the nozzle device 700 can be eliminated, and gentler washing water can be provided. Conversely, because the flow rate through the fixed orifice 413C becomes smaller as the washing flow rate set by the user increases, and the water pressure applied to the outlet 410 leading to the main waterway becomes smaller, and the water pressure applied to the inlet of the water pump 600 also becomes smaller, so stronger washing water can be provided without eliminating the pulsation of the washing water flowing out of the nozzle device 700.

The vacuum breaker 404 is usually pushed up by the washing water through the water pressure, so the flow path to the air inlet 412 will be closed. However, when the upstream side becomes negative pressure, the vacuum breaker valve 408 will drop and introduce external air from the air inlet 412 to relieve the negative pressure on the upstream side, thereby preventing the danger of sewage backflow from the nozzle device 700 or the open water path.

The following method may be considered: in the above-mentioned implementation form of the water supply unit, the structure of the water pump 600 is eliminated.

The water supply unit shown in Figures 32 to 34 is a structure that eliminates the water pump 600 and is described below as the water supply unit 400B.

The water supply unit 400B is equipped with a coarse filter 401B, a water stop solenoid valve 403B, a pressure reducing valve 402B, a vacuum circuit breaker 404B and an open water channel 405B.

Clean water flowing in the water pipe (not shown) is supplied to the coarse filter 401B as washing water. Dirt and impurities contained in the washing water can be removed by the coarse filter 401B.

The washing water from which dirt and impurities have been removed by the coarse filter 401B is supplied to the water stop solenoid valve 403B. The water stop solenoid valve 403B switches the supply state of washing water to the downstream side. The operation of the water stop solenoid valve 403B is controlled by the control unit (not shown). When 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 fixed pressure by the pressure reducing valve 402B.

The vacuum circuit breaker 404B includes a vacuum adapter 406B, a vacuum cover 407B covering the vacuum adapter 406B, and a vacuum circuit breaker valve 408B supported between the vacuum adapter 406B and the vacuum cover 407B.

The vacuum adapter 406B has an inlet 409B for the washing water from the pressure reducing valve 402B to flow in, an outlet 410B leading to the main water channel, and an outlet 411B leading to the open water channel. The vacuum cover 407B has an air intake port 412B.

The vacuum breaker 404B is disposed on the downstream side of the pressure reducing valve 402B, and the washing water that has been reduced to a fixed pressure by the pressure reducing valve 402B is supplied from the inlet 409B into the vacuum breaker 404B to flow to the outlet 410B.

The vacuum breaker 404B is usually pushed up by the washing water through the water pressure, so the flow path to the air inlet 412B will be closed. When the upstream side becomes negative pressure, the vacuum breaker valve 408B will drop and introduce external air from the air inlet 412B to relieve the negative pressure on the upstream side, thereby preventing the danger of sewage backflow from the nozzle device 700 or the open water path.

The following method can be considered: in the above-mentioned implementation form of the water supply unit, a pump and a pressure reducing valve are added.

The water supply unit shown in Figures 35 to 37 is a structure with a water pump 600 and a pressure reducing valve 402C added, and is described below as a water supply unit 400C.

The water supply unit 400C is equipped with a coarse filter 401C, a water stop solenoid valve 403C, a pressure reducing valve 402C, a vacuum circuit breaker 404C and an open water path 405C.

Clean water flowing in the water pipe (not shown) is supplied to the coarse filter 401C as cleaning water. Dirt and impurities contained in the cleaning water can be removed by the coarse filter 401C.

The washing water from which dirt and impurities have been removed by the coarse filter 401C is supplied to the water stop solenoid valve 403C. The water stop solenoid valve 403C switches the supply state of washing water to the downstream side. The operation of the water stop solenoid valve 403C is controlled by the control unit (not shown). When 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 fixed pressure by the pressure reducing valve 402C.

The vacuum circuit breaker 404C includes a vacuum adapter 406C, a vacuum cover 407C covering the vacuum adapter 406C, and a vacuum circuit breaker valve 408C supported between the vacuum adapter 406C and the vacuum cover 407C.

The vacuum adapter 406C has an inlet 409C for the washing water from the pressure reducing valve 402C to flow in, an outlet 410C leading to the main water channel, and an outlet 411C leading to the open water channel. The vacuum cover 407C has an air intake port 412C.

The vacuum breaker 404C is arranged on the downstream side of the pressure reducing valve 402C. The washing water can be reduced in pressure to a fixed pressure by the pressure reducing valve 402C and supplied to the vacuum breaker 404C from the inlet 409C, and further reduced in pressure by passing through the fixed orifice 413C and flowing to the outlet 410C.

Because the smaller the washing flow rate set by the user, the smaller the flow rate through the fixed orifice 413C will be, and the water pressure applied to the outflow port 410C will be greater, and the water pressure applied to the inlet of the water pump 600 will also be greater, so the pulsation of the washing water flowing out of the nozzle device 700 can be eliminated, and gentler washing water can be provided. Conversely, because the larger the washing flow rate set by the user, the larger the flow rate through the fixed orifice 413C will be, and the water pressure applied to the outflow port 410C will be smaller, and the water pressure applied to the inlet of the water pump 600 will also be smaller, so stronger washing water can be provided without eliminating the pulsation of the washing water flowing out of the nozzle device 700.

The vacuum breaker 404C is usually pushed up by the washing water through the water pressure, so the flow path to the air inlet 412C will be closed. When the upstream side becomes negative pressure, the vacuum breaker valve 408C will drop and introduce external air from the air inlet 412C to relieve the negative pressure on the upstream side, thereby preventing the danger of sewage backflow from the nozzle device 700 or the open water path.

In the event that sewage flows back from the nozzle device 700, the flow path of sewage flowing in from the outflow port 410C can be reduced by the fixed orifice 413C, thereby suppressing the backflow of sewage.

<Heat exchanger>

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

The heat exchanger 500 is described in detail below with reference to FIGS. 38 to 50 .

The heat exchanger 500 is formed in a relatively low rectangular parallelepiped shape, and a relatively wide surface is placed and fixed on the base portion 250.

The heat exchanger 500 has a lower shell 510, an upper shell 520 and a front structure 530 formed of heat-resistant resin. The lower shell 510 and the upper shell 520 are formed into one body by welding, etc., and the front structure 530 can be formed in one body at the front by welding, etc.

In the front structure 530, an inlet tube 532 is formed on the right side of the upper surface and vertically protrudes upward. The inlet tube 532 is provided with an inlet 531 for washing water to the inner space of the heat exchanger 500. In the front structure 530, an outlet tube 534 is formed on the left side of the upper surface and vertically protrudes upward. The outlet tube 534 is provided with an outlet 533 for washing water from the inner space of the heat exchanger 500.

The inlet tube 532 can be arranged on the right side of the heat exchanger 500 to shorten the distance from the water supply unit 400, and the piping connecting the water supply unit 400 and the inlet tube 532 can be shortened, thereby improving the piping operability.

The upper surface of the upper shell 520 is divided into a temperature detection assembly mounting portion 521 by ribs. The aforementioned temperature detection assembly mounting portion 521 is a mounting portion of the temperature detection assembly for detecting the dry burning of the heat exchanger 500. In this embodiment, the temperature detection assembly uses a temperature fuse 522, and the temperature detection assembly mounting portion 521 is provided with the temperature fuse 522 and a wiring 523 for the temperature fuse 522. The heater structure 580 of the heat exchanger 500 sets the temperature to be higher on the inlet 531 side than on the outlet 533 side, so the temperature fuse 522 is installed at a position corresponding to the flow path on the inlet 531 side. The portion of the temperature detection assembly mounting portion 521 where the temperature fuse 522 is mounted is configured to have a thinner wall thickness to more accurately detect the dry burning of the heat exchanger 500. The temperature detection assembly mounting portion 521 is covered by the temperature detection assembly cover 540 fixed to the upper housing 520. The temperature fuse 522 is formed to only block the circuit structure of the power supply to the heat exchanger 500.

In the heat exchanger 500, the flow sensor 550 is installed on the inlet tube 532 and the hot water discharge zone group 560 is installed on the outlet tube 534 through a common terminal plate 565 for ground connection.

The terminal board 565 is formed of a metal plate and connected to a ground terminal (not shown), which is connected to the power ground. The terminal board 565 is often in contact with the cleaning water at the inlet 531 and the outlet 533. This prevents leakage from leaking to the user or the water pipe through the cleaning water even if the basic insulation of the heater structure 580 is damaged.

As shown in FIGS. 42 to 44 , the flow sensor 570 includes a flow sensor housing 571, a flow sensor housing cover 572, an inlet water temperature sensor 573, an inlet water temperature sensor fixture 574, a flow sensor shaft 575, an impeller 576, and a detection assembly 577 for detecting the number of rotations of the impeller 576.

The flow sensor housing 571 has an inlet 578 from the water supply unit 400 and an outlet 579 leading to the heat exchanger 500.

A flow sensor shaft 575 is installed between the flow sensor housing 571 and the flow sensor housing cover 572, and an impeller 576 is installed on the flow sensor shaft 575. The inlet 578 is configured to supply cleaning water from the front lower part to the tangential direction of the impeller 576, and the impeller 576 rotates with the flow sensor shaft 575 as the center by the supplied cleaning water. The detection component 577 is arranged on the upper part of the flow sensor 570, and detects the number of rotations of the impeller 576, and outputs the measured flow value to the control unit. In this way, it is possible to prevent the detection component 577 from being unable to detect the number of rotations of the impeller 576 due to the easy accumulation of dirt or dirt at the bottom.

The water temperature sensor 573 can be fixed to the flow sensor housing 571 by the water temperature sensor fixture 574. The water temperature sensor 573 is installed in such a way that the water temperature sensor fixture 574 covers the metal part so that the metal part is not exposed to the outside of the flow sensor 570. In this way, even if the insulation of the lead wires that have been wired around is damaged, it is still possible to prevent leakage of electricity through the metal part of the water temperature sensor 573 to the washing water.

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

Furthermore, in this embodiment, the flow sensor 570 is installed at the inlet 531, but it can also be installed downstream of the outlet 533. In this configuration, since the washing water heated 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 will increase. Therefore, the method of this embodiment is more advantageous in terms of quality.

The structure of the internal space of the heat exchanger 500 is explained based on Figures 45 to 50. Furthermore, the heater structure 580 on the lower side of Figure 46 is shown in a state of being flipped 180 degrees.

In the internal space of the heat exchanger 500, the heater structure 580 is arranged in the horizontal direction, and is clamped and fixed by the upper cover shell 520 and the lower cover shell 510 via the lower sealing body 581 and the upper sealing body 582.

The heater structure 580 has a terminal portion 583 at the center of the side end of the front structure 530. The terminal portion 583 connects the heater of the heater structure 580 to the lead wire (not shown) through the front structure 530. The lead wire connected to the terminal portion 583 is led out through the lead-out passage (not shown) formed in the front structure 530. In the heater structure 580, a plurality of through holes 584 constituting a part of the flow path are formed on the end side facing the end where the terminal portion 583 is provided.

The internal space of the heat exchanger 500 is divided into upper and lower directions by the heater structure 580, and the divided upper space and lower space are almost formed into equal volumes. An upper sealing body 582 and a lower sealing body 581 made of silicone rubber are respectively arranged in the upper space and the lower space.

The upper sealing body 582 has a peripheral sealing body 582a and three partition sealing bodies 582b, 582c, and 582d extending in the front-rear direction and connected to the peripheral sealing body 582a. The peripheral sealing body 582a and the partition sealing bodies 582b, 582c, and 582d are in close contact with the inner surface of the upper shell 520 and the upper surface of the heater structure 580 to seal, and form a flow path (upper flow path) between the inner surface of the upper shell 520 and the heater structure 580.

The upper seal 582 has a connecting seal 582e, which connects the left and right partition seals 582b and the front side of the partition seal 582d to the partition seal 530, and is connected to the central partition seal 582c. The connecting seal 582e forms the side surface of the heater structure 580 lower than the other parts of the upper seal 582, and forms a flow path (upper side flow path) between the connecting seal 582e and the heater structure 580.

The lower sealing body 581 has a peripheral sealing body 581a and three partition sealing bodies 581b, 581c, and 581d extending in the front-rear direction and connected to the peripheral sealing body 581a. The peripheral sealing body 581a and the partition sealing bodies 581b, 581c, and 581d are sealed by being in close contact with the inner surface of the lower housing 510 and the upper surface of the heater structure 580, and a flow path (lower side flow path) is formed between the inner surface of the lower housing 510 and the heater structure 580.

The lower seal 581 is provided on the front structure 530 side with: a right connecting seal 581e, connecting the right peripheral seal 581a and the central partition seal 581c; and a left connecting seal 581f, connecting the left peripheral seal 581a and the central partition seal 581c. The right connecting seal 581e and the left connecting seal 581f form the surface of the heater structure 580 side lower than the other parts of the lower seal 581. Thereby, 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 has a heater (not shown), which is slightly separated from the surrounding seal 582a and the partition seals 581b, 581c, and 581d of the upper seal 582. In addition, the heater is slightly separated from the surrounding seal 581a and the partition seals 581b, 581c, and 581d of the lower seal 581. This prevents the heater from being overheated locally and suppresses the reduction of durability.

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

The washing water supplied from the inlet 531 flows into the flow path between the partition seal 582b and the surrounding seal 581a on the right side of the upper space. The washing water flows toward the rear side 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 washing water flows toward the front side while being heated by the heater structure 580, and flows into the flow path between the partition seal 581b on the right side and the partition seal 581c in the center over the right connecting seal 581e.

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

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

The following method can be considered: the inlet 531 is formed on the upper cover shell 520 side, and the outlet 533 is formed on the lower cover shell 510 side, so that the washing water flows in the upper flow path and then flows to the lower flow path. If this structure is set, it can be inferred that the amount of flow in the up and down directions can be reduced, and the flow path resistance can be set smaller.

However, in this configuration, a piping space for the outlet 533 is required below the lower cover 510, which increases the configuration space. Also, the piping work for the outlet 533 is performed in the gap between the lower cover 510 and the base 250, which results in poor workability.

In this embodiment, the washing water flows alternately in the upper flow path and the lower flow path, and a plurality of flow paths are formed at the upper and lower parts.

In this embodiment, four flow paths are formed at the top and bottom. Thus, the inlet 531 and the outlet 533 can be formed on the upper cover shell 520 side. Thus, the space for piping of the inlet 531 and the outlet 533 can be formed only on the upper cover shell 520 side, and the problem of the installation space becoming larger can be solved.

Furthermore, although four flow paths are formed in the upper and lower parts, two flow paths may be provided, or six or more flow paths may be provided. By forming the upper and lower flow paths into a plurality of paths, an inlet 531 and an outlet 533 may be formed on the upper cover 520 side.

The inner surface of the upper housing 520 forming the flow path may be formed into a concave-convex shape by forming a convex portion 524. The convex portion 524 is continuously formed into a mountain shape, and is formed into a steep slope on the upstream side and a gentle slope on the downstream side.

The inner surface of the lower housing 510 constituting the flow path can be formed into a concave-convex shape by forming a convex portion 514. The convex portion 514 is continuously formed into a mountain shape, and is formed into a steep slope on the upstream side and a gentle slope on the downstream side.

As shown in FIG. 49, the convex parts 514 and 524 are shaped to approach the heater structure 580 on the upstream side, so the washing water flowing in the flow path is guided by the convex parts 514 and 524 to the heater structure 580 on the upstream side, and flows over the top of the convex parts 514 and 524 on the gentle slope on the downstream side. Because the flow path volume becomes wider after passing the top of the convex parts 514 and 524, the washing water will become a turbulent flow and the temperature will be uniform. By narrowing and widening the flow path with the convex parts 514 and 524, the thermal conductivity can be improved and the temperature of the washing water can be uniform.

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

The heater structure 580 is provided with a heater (not shown), which is slightly separated from the upper sealing body 582 and the lower sealing body 581, so as to prevent the heater from overheating and inhibit the adhesion of scale to the heater structure 580.

When the air bubbles have penetrated into the heat exchanger 500, the air bubbles will stay on the downstream side of the protrusions 514 and 524 as shown in FIG. 49.

In this embodiment, since the convex parts 514 and 524 form a gentle slope on the downstream side as shown in FIG. 50 , the air bubbles flow along the slopes of the convex parts 514 and 524 to the downstream side and are discharged from the heat exchanger 500 .

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

<Water pump>

A water pump 600, which is a variable water discharge volume component, is provided on the right side of the nozzle device 700. In this embodiment, a diaphragm pump is used as the water pump 600.

Furthermore, it is also possible to configure the structure without using the water pump 600.

As shown in Figures 51 to 55, the water pump 600 has a pump mechanism 610 and a motor 620, and is formed in a roughly cylindrical shape. The pump mechanism 610 is equipped with an elastic member A630 covering the entire circumference of the end side. The motor 620 is equipped with an elastic member B640 in a manner covering the entire circumference of 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 installed in the recess 605a of the pump housing 605 with the elastic member A630 and the elastic member B640 installed. The motor part 620 of the water pump 600 is fixed by the pump fixture 606 by engaging the claw part 606a with the fixing claw 605b of the pump housing 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 to protrude vertically from one end surface relative to the end surface. The water pump 600 is arranged in a horizontal direction with the end surfaces having the water supply cylinder 600b and the discharge cylinder 600d facing forward.

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

The water pump 600 can absorb vibrations of a wide range of frequencies through the elastic components A630, B640, and C650, thereby effectively suppressing the transmission of vibrations to the main body 200.

The lead wire 607 of the water pump 600 can be restricted from moving by the fixing claw 606b and the locking claw 605c.

Since the water pump 600 is fixed to the base 250 by screw fixing or claw fitting, the water pump 600 can be removed regardless of the nozzle device 700, which can improve the maintenance workability. In addition, it can prevent the vibration of the water pump 600 from being directly transmitted to the nozzle device 700.

As shown in FIG. 55 , a drain port 608 is formed in the pump housing 605. When the pump mechanism 610 of the water pump 600 is damaged and water leaks, water can be discharged from the drain port 608. The water discharged from the drain port 608 can be discharged from the base 250 through the inclined surface 240 into the toilet 110.

In this embodiment, a detection component (not shown) is provided to detect water discharged from the drain port 608. The detection component will detect water leakage in the pump mechanism 610 and report the fault.

In this embodiment, the detection component is configured to detect water from the drain port 608, but it is not limited to this component, as long as it can detect water leakage from the pump mechanism 610. In addition, the detection component can also be configured to detect, for example, the situation where electricity is passed between a pair of terminals due to water leakage, and other well-known configurations can be used.

The water supply port 600a of the water pump 600 is connected to the outlet 533 of the heat exchanger 500 via a connecting hose made of soft resin.

The following is a detailed description of the structure of the water pump 600 according to the diagram.

Figure 56 is an exploded perspective view showing the liquid diaphragm pump of the present invention. Figure 57 is a cross-sectional view of the main parts.

The cover body 1 is a thin cylindrical shape and is attached to the front side 3a of the middle cover body 3 via a pad 2 formed by an elastic member. The cover body 1 has a through hole 1c formed in the center, and the through hole 1c can be plugged into the chimney-shaped discharge hole 37 of the middle cover body 3. In addition, the cover body 1 is provided with a suction hole 12 for inhaling liquid, and a cover suction chamber 38 is provided. The cover suction chamber 38 becomes a part of the suction path 30 for the liquid sucked into the back side 1b of the cover to flow, and the cover suction chamber 38 is connected to the suction hole 12.

The middle cover body 3 is formed into a cylindrical shape made of resin, and a discharge hole 37 is protrudingly provided at the center of the front face 3a. A groove portion (not shown) is formed on the back of the middle cover body 3 for discharging liquid from the discharge hole 37 to the outside, and the groove portion and the discharge hole 37 are connected. In addition, the middle cover body 3 is formed with a valve seat portion 34 at the bottom of the groove portion. A total of three valve seats are arranged at equal intervals of 120 degrees in the circumferential direction with the discharge hole 37 as the center. In addition, a suction chamber 33 with a circular groove portion is formed on the front face 3a side of the middle cover body 3 corresponding to the three valve seats 34. The suction chamber 33 constitutes a part of the suction path 30 for the flow of the sucked liquid.

The valve seat 34 is short cylindrical, and a mounting hole (not shown) for attaching the suction valve body 4 is formed in the center of the front end wall 35 through the suction chamber 33. A suction hole 32 of the suction path 30 that can suck liquid near this mounting hole is formed in the front end wall 35 of the valve seat 34.

The discharge valve diaphragm 52 of the diaphragm assembly 5 is in contact with the valve seat 34 in a manner that can be covered and separated. The front end wall 35 of the valve seat 34 allows the valve portion 4a of the suction valve body 4 to be in contact and separated, so as to be configured to open and close the suction hole 32 freely. Compared with the case where there are three valve seats 34, there are two suction valve bodies 4, and one of the valve seats 34 is not covered by the suction valve body 4.

The diaphragm assembly 5 is composed of three bowl-shaped diaphragms 50 that are equally divided at intervals of 120 degrees in the circumferential direction and connected by a transverse diaphragm 54 formed on the axis. A cushioning edge 53 is formed on the outer peripheral edge of the transverse diaphragm 54, and a discharge valve diaphragm 52 is provided protruding from the transverse diaphragm 54 toward the outer peripheral side. The diaphragm 50 is provided with a driving portion 51 that causes the diaphragm 50 to reciprocate.

The backing edge 53 of the diaphragm assembly 5 is sandwiched between the middle cover 3 and the retainer member 6, and the retainer member 6 has a hole portion through which the driving portion 51 of the diaphragm 50 can be inserted. The driving portion 51 of the diaphragm 50 inserted into the retainer member 6 is supported by the locking hole 71 of the rocking plate 7. The rocking plate 7 is disposed in a cylindrical box body 13 with a bottom, and the end of the cylindrical box body 13 abuts against the retainer member 6.

A small DC motor 11 is arranged on the outer side of the cylindrical housing 13, and the output shaft 11a of the motor 11 extends into the cylindrical housing 13, and an eccentric rotating body 9 is attached to the output shaft 11a. The eccentric rotating body 9 has a shaft mounting hole 91 for inserting the output shaft 11a, and an eccentric hole 92 arranged eccentrically from the shaft mounting hole 91, and the crankshaft 8 is inserted through the eccentric hole 92 in an inclined manner.

The diaphragm pump sandwiches the diaphragm assembly 5 between the middle cover 3 and the retaining ring member 6, and forms a pump chamber 25 on the inner surface side of the discharge valve diaphragm 52, and forms a common discharge space 36 with a discharge hole 37 formed by a groove 39 and a horizontal diaphragm 54 on the outer surface side of the discharge valve diaphragm 52.

The cylindrical housing 13 is fixed to the motor 11 with screws 14. Furthermore, the cover 1, the gasket 2, the middle cover 3, the diaphragm assembly 5 and the retaining ring component 6 are sequentially stacked on the cylindrical housing 13 and fixed to the cylindrical housing 13 with long screws 15 to form the housing 10.

Furthermore, in this disclosure, although there are three valve seats 34 and two suction valve bodies 4, it is also possible to have, for example, four valve seats 34 and three suction valve bodies 4.

The operation of the diaphragm pump for liquids with the above structure is explained.

When the output shaft 11a of the motor 11 is rotated, the eccentric rotating body 9 attached to the output shaft 11a rotates, and the rocking plate 7 is rocked through the crank shaft 8, so that the driving part 51 of the diaphragm 50 reciprocates. Through the reciprocating motion of the driving part 51, the diaphragm 50 repeatedly expands and compresses. Thereby, the pump chamber 25 formed by the valve seat part 34 of the middle cover body 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 suction valve body 4 is separated from the suction valve seat portion 35a in a pulled apart manner. The suction hole 32 of the suction path 30 formed in the front end wall portion 35 of the valve seat portion 34 becomes open to the pump chamber 25. Thereby, the liquid flows from the suction hole 12 in the suction path 30 formed by the cover suction chamber 38 of the cover body 1 and the suction chamber 33 of the middle cover body 3 and flows into the pump chamber 25.

In addition, since the pump chamber 25 is under negative pressure, the discharge valve diaphragm 52 of the diaphragm 50 will be tightly attached to the valve seat 34. This can prevent the liquid from flowing out to the common discharge space 36 or the backflow from the common discharge space 36. The common discharge space 36 is a space formed by the outer side surface of the discharge valve diaphragm 52, the transverse diaphragm 54 and the groove 39 of the middle cover body 3.

When the pump chamber 25 is compressed, the valve portion 4a of the suction valve body 4 is pressed against the suction valve seat portion 35a. The suction hole 32 of the suction path 30 formed on the front end wall portion 35 of the valve seat portion 34 is blocked by the valve portion 4a. As a result, the suction valve body 4 prevents the inflow and outflow of liquid from the suction hole 32. In addition, due to the compression of the pump chamber 25, the discharge valve diaphragm 52 becomes expanded and separated from the valve seat portion 34, and the liquid in the pump chamber 25 is compressed and sent to the common discharge space 36.

Furthermore, when the pump chamber 25 is compressed, the discharge valve diaphragm 52 expands toward the common discharge space 36, compresses the liquid in the common discharge space 36, and pushes the liquid toward the discharge hole 37. Thus, the outer diaphragm surface of the discharge valve diaphragm 52 has the function of pressurizing the liquid.

Because the suction hole 32 is open when the pump chamber 25 is compressed at a position where the valve portion 4a is not provided, when the pump chamber 25 is compressed, the liquid in the pump chamber 25 will be pushed back from the pump chamber 25 to the suction path 30. The liquid pushed back to the suction path 30 will be pressed to the pump chamber 25 equipped with the valve portion 4a.

On the other hand, although the discharge valve diaphragm 52 expands toward the common discharge space 36, the pressure applied to the discharge valve diaphragm 52 decreases, the discharge amount to the common discharge space 36 becomes small, and the pressure of the washing water sprayed by the sanitary washing device to the local part of the human body becomes low. In other words, the spraying to the local part of the human body will be temporarily interrupted or become a low-pressure spraying state.

Because the washing water force that allows the normal amount of water to be sprayed to the local part of the human body is generated at the position where the valve part 4a is configured, the water pressure at the position where the valve part 4a is configured and the water pressure at the position where the valve part 4a is not configured will change, resulting in pulsation of the washing water pressure.

At the position where the valve 4a is arranged, the liquid pushed back from the suction passage 30 will be pressed to the pump chamber 25 equipped with the valve 4a, and will act between the pump chambers 25 to generate the flushing water pressure when the diaphragm is compressed in the order of the rotation direction of the actuator.

When a diaphragm pump with two valves 4a and a diaphragm pump with three valves 4a were manufactured and their performances were compared, the diaphragm pump with two valves 4a can generate a washing water pressure about twice the maximum washing water pressure of the diaphragm pump with three valves 4a.

A drying device 220 is provided on the left side of the nozzle device 700. The drying device 220 dries the water adhering to the local area after washing by generating warm air.

A deodorizing device 230 for deodorizing the odor in the toilet 110 is provided on the left side of the drying device 220.

Industrial availability

The sanitary cleaning device disclosed herein can improve the installation workability of various functional parts on the base part, so it can also be applied to sanitary cleaning devices without toilet lids.

270: Rear cover

270a: front face

290:Front hood

290a: Clamping part

Claims (6)

A sanitary washing device comprises: a main body; and various functional parts, which are arranged in the main body and include a nozzle device for washing the human body. The main body is composed of a flat base forming the bottom of the main body, a rear cover forming the rear and part of the side of the main body, and a front cover forming the front, upper surface and part of the side of the main body. As in claim 1, the sanitary washing device, wherein the base portion and the rear cover shell form a concave-convex fitting portion in the front-rear direction, and the rear cover shell slides along the concave-convex fitting portion in the front-rear direction to install the base portion. As in claim 1, the sanitary washing device, wherein the base portion and the front cover shell form a concave-convex fitting portion in the front-rear direction, and the front cover shell slides along the concave-convex fitting portion in the front-rear direction to install the base portion. As in claim 2, the sanitary washing device, wherein the base portion and the front cover shell form the concave-convex fitting portion in the front-rear direction, and the front cover shell slides along the concave-convex fitting portion in the front-rear direction to install the base portion. A sanitary washing device as claimed in any one of claims 1 to 4, wherein an extension extending in the horizontal direction is formed on the front upper edge of the aforementioned rear cover, and a recessed portion clamping the aforementioned extension from the upper and lower directions is formed on the rear upper edge of the aforementioned front cover. A method for manufacturing a sanitary washing device, the sanitary washing device comprising: a main body; and various functional parts, arranged in the main body and including a nozzle device for washing a human body, the main body comprising a flat base forming the bottom of the main body, a rear cover forming the rear and a part of the side of the main body, and a front cover forming the front, upper surface and a part of the side of the main body. The method for manufacturing a sanitary washing device comprises the following steps: (a) installing the various functional parts on the flat base; (b) sliding the rear cover from the rear of the flat base to the front and installing it on the flat base; and (c) sliding the front cover from the front of the flat base to the rear and installing it on the flat base.

Images