JP7230533B2 - Flow switching valve device and sanitary washing device - Google Patents

Description

The present invention relates to a flow path switching valve device and a sanitary washing device provided in a sanitary washing device for washing private parts of a human body with washing water.

2. Description of the Related Art Conventionally, in a sanitary washing device mounted on a toilet bowl such as a Western-style seated toilet bowl for washing the private parts of a human body, a flow path switching valve for switching the water flow path to a plurality of supply destinations of washing water (water) is used. A device is provided. As a channel switching valve device, there is known one having two valve discs that move relative to each other, and having a disc valve mechanism that switches the channel according to the positional relationship between these valve discs (see, for example, Patent Document 1). .).

Patent Document 1 discloses a valve disc that has a rotary disc that is rotatable about a predetermined central axis and a fixed disc that has a plurality of water passage holes communicating with water supply destinations. , a configuration in which these valve discs are housed in a casing (housing) is disclosed. In such a configuration, the movement of the rotating disk switches the flow path of the water supplied into the casing.

In the flow path switching valve device configured as described above, a sealing member is provided between the casing and the valve disk or a portion that moves integrally with the valve disk in order to seal the space receiving the supply of water inside the casing. is provided. Patent Literature 1 discloses a configuration in which a sealing member made of rubber or the like is interposed between the peripheral wall of the casing and the outer peripheral ends of the rotary disc and both of the rotary discs. Further, since the sealing member is a sliding portion due to the operation of the valve disc, grease is applied to the sealing member as appropriate.

In the flow path switching valve device configured as described above, the seal performance of the seal member is deteriorated due to aged deterioration such as wear of the seal member and outflow of grease, resulting in water leakage from the seal portion of the seal member. Sometimes. Since the leakage destination of water leaking from the sealing portion is not the space into which the water originally flows, if the water leaking from the sealing portion accumulates in the casing, it causes malfunction of the device. Therefore, conventionally, there is a technique in which a casing is provided with a drainage port for discharging water leaked from a portion sealed by a sealing member.

Japanese Patent No. 3287506

As described above, the leakage of water discharged from the drain port provided in the casing (discharged water leakage) can occur, for example, in a sanitary washing device in which various devices and devices including a flow path switching valve device are installed. dropped and ejected to the outside. Specifically, for example, the drained water is drained along the bottom of the housing of the device body and into the bowl of the toilet bowl.

In the housing of the device main body, other parts such as various devices and devices including wiring etc. are arranged around the flow path switching valve device. Therefore, from the viewpoint of avoiding adverse effects of water on other parts, it is necessary to avoid contact of the discharged water leakage with other parts. In particular, as sanitary washing devices become more compact, the density of various devices and devices in the housing of the main body of the device increases, so it is important to avoid contact of discharged water with other parts.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and is capable of suppressing contact of leaked water discharged from a drain port provided in a casing with other parts, thereby preventing water leakage from the casing. An object of the present invention is to provide a channel switching valve device and a sanitary washing device that can prevent adverse effects on other parts.

A flow path switching valve device according to the present invention is a flow path switching valve device that is provided upstream of a plurality of water discharge sections that discharge water, and switches a flow path that supplies water to a flow path to each water discharge section. A movable part including a movable valve body that operates to switch a flow path, a casing that houses the movable part, and a seal member provided between the movable part and the casing, The casing has a drain port for discharging water leaking from the sealing portion of the sealing member to the outside of the casing, and a drain channel portion for guiding the leaked water discharged from the drain port to a predetermined position. , the drainage passage portion includes a covering portion that covers the drainage port from at least one side.

According to the flow path switching valve device having such a configuration, it is possible to prevent the leakage water discharged from the drain port provided in the casing from coming into contact with other parts, so that the leakage water from the casing can be prevented from contacting the other parts. Adverse effects can be prevented.

Another aspect of the flow path switching valve device according to the present invention is that the drainage flow path section includes a first flow path section having the covering section and causing the leaked water discharged from the drain port to flow down; and a second channel portion having a receiving surface for receiving leaked water flowing down from the channel portion and guiding the leaked water on the receiving surface to the downstream side of the drain channel portion.

According to the flow path switching valve device having such a configuration, the flow of discharged water leakage in the drainage flow path can be divided into a plurality of stages of flow paths. can be effectively prevented from being applied.

Another aspect of the flow path switching valve device according to the present invention is that the first flow path portion has a drooping portion for causing leaked water discharged from the drain port to flow down to the receiving surface, and the drooping portion is , has a sharp shape downward.

According to the flow path switching valve device having such a configuration, it is possible to improve the ability to drain the leaked water flowing down from the first flow path part, and to suppress the accumulation of water in the first flow path part. can.

Another aspect of the flow path switching valve device according to the present invention is that the first flow path section is formed to allow water leakage to flow down from one side in a predetermined horizontal direction, and the drainage flow path section includes the It has a pair of barriers which are provided facing each other so that the drooping section is positioned between them in a predetermined horizontal direction, and which guide water that has flowed down to the receiving surface.

According to the flow path switching valve device having such a configuration, it is possible to regulate the flow range on both sides in the predetermined horizontal direction of the discharged water leakage on the receiving surface that has flowed down from the drooping portion. It is possible to guide to the position.

A sanitary washing device according to the present invention includes a plurality of water dischargers for discharging water, and a flow path provided upstream of the plurality of water dischargers for switching a flow path for supplying water to each of the water dischargers. a path switching valve device, wherein the path switching valve device includes a movable part including a movable valve body that operates to switch a flow path; a casing that houses the movable part; a seal member provided between the movable portion and the casing side, wherein the casing includes a drain port for discharging water leaked from the seal portion by the seal member to the outside of the casing; a drainage passage portion for guiding leaked water discharged from the mouth to a predetermined position, the drainage passage portion including a covering portion covering the drainage port from at least one side.

According to the sanitary washing device having such a configuration, it is possible to suppress the contact of the leaked water discharged from the drain port provided in the casing of the flow path switching valve device with other parts, thereby preventing the leakage of water from the casing. It is possible to prevent adverse effects on other parts.

ADVANTAGE OF THE INVENTION According to the present invention, it is possible to suppress contact of leaked water discharged from a drain port provided in a casing with other parts, and prevent water leakage from the casing from adversely affecting other parts. can be done.

1 is a perspective view showing a toilet apparatus according to one embodiment of the present invention; FIG. 1 is a block diagram showing a sanitary washing device according to one embodiment of the present invention; FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram schematically showing a flow adjustment/flow path switching valve device and related configuration according to an embodiment of the present invention; 1 is a front perspective view of a flow adjustment/channel switching valve device according to an embodiment of the present invention; FIG. 1 is a front view of a flow adjustment/flow path switching valve device according to an embodiment of the present invention; FIG. 1 is a rear view of a flow adjustment/flow path switching valve device according to an embodiment of the present invention; FIG. 1 is a left side view of a flow adjustment/flow path switching valve device according to an embodiment of the present invention; FIG. 1 is a right side view of a flow adjustment/flow path switching valve device according to an embodiment of the present invention; FIG. 1 is a plan view of a flow adjustment/flow path switching valve device according to an embodiment of the present invention; FIG. FIG. 10 is a cross-sectional view taken along the line A-A' in FIG. 9; 1 is an exploded perspective view of a flow adjustment/flow path switching valve device according to an embodiment of the present invention; FIG. 1 is a front view showing the arrangement configuration of an electrolytic cell with respect to a flow adjustment/flow path switching valve device according to an embodiment of the present invention; FIG. FIG. 2 is a left side view showing the arrangement configuration of the electrolytic cell with respect to the flow adjustment/flow path switching valve device according to the embodiment of the present invention; FIG. 2 is a plan view showing the arrangement configuration of electrolytic cells with respect to the flow adjustment/flow path switching valve device according to one embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the drainage structure of the leaking water which concerns on one Embodiment of this invention. 1 is a longitudinal sectional view showing a leakage drainage structure according to an embodiment of the present invention; FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a cross-sectional perspective view which shows the drainage structure of the leaking water which concerns on one Embodiment of this invention. 1 is a plan view showing a leakage drainage structure according to an embodiment of the present invention; FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the drainage structure of the leaking water which concerns on one Embodiment of this invention. 1 is a left side view showing a leakage drainage structure according to an embodiment of the present invention; FIG. FIG. 3 is a longitudinal sectional view showing the shape of the drooping portion in the water leakage drainage structure according to the embodiment of the present invention;

The present invention relates to a flow path switching valve device provided in a sanitary washing apparatus. It is intended to prevent it from affecting the BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, a configuration in which a sanitary washing device having a flow path switching valve device is installed on a Western-style seated toilet bowl in a toilet device will be described as an example.

As shown in FIG. 1, a toilet apparatus 1 according to this embodiment includes a sanitary washing apparatus 2 for washing the private parts of a human body (user), and a toilet bowl 3 that is a Western-style seated toilet bowl. The sanitary washing device 2 is installed on the toilet bowl 3 in the toilet device 1 . The sanitary washing device 2 may be detachably attached to the toilet bowl 3 or may be integrally provided with the toilet bowl 3 .

The toilet bowl 3 has a concave bowl portion 3a with its upper side open. The toilet bowl 3 receives excrement such as urine and feces of the user of the toilet apparatus 1 in the bowl portion 3a.

The sanitary washing device 2 includes a device main body 4 in which various device configurations are built in a case cover 5 forming a housing, and a toilet seat 6 and a toilet seat 6 supported rotatably with respect to the case cover 5 of the device main body 4. and a lid 7 . The case cover 5 has a base portion that forms the bottom portion and a cover portion that covers the base portion from above. The sanitary washing device 2 has a device main body 4 positioned behind and above the bowl portion 3a with respect to the toilet bowl 3, and opens and closes an upper open portion of the bowl portion 3a by rotating the toilet seat 6 and the toilet lid 7. is provided as follows.

The sanitary washing device 2 will be described with reference to FIG. As shown in FIG. 2, the sanitary washing device 2 includes a control unit 10, an operation unit 11, a washing water supply unit 12, a seating detection sensor 13, a human body detection sensor 14, a washing nozzle 15, and a nozzle washing chamber. 16, a spray nozzle 17, and a deodorizing unit 18. Note that FIG. 2 also shows the configuration of the cleaning water supply path and the control configuration by the control unit 10 .

The control unit 10 controls the operation of each unit such as the washing water supply unit 12 and the deodorizing unit 18 . The control unit 10 controls the operation of each unit according to, for example, an input signal from the operation unit 11 based on an operation on the operation unit 11 . The operation unit 11 may be provided in the device main body 4 of the sanitary washing device 2 or may be provided separately from the device main body 4 . The operation unit 11 is provided as, for example, a remote controller. Further, the communication method between the control unit 10 and the operation unit 11 may be wired or wireless.

The washing water supply unit 12 receives water from a predetermined water supply source such as tap water, and selects the supplied washing water (water) as a plurality of water discharge units of the sanitary washing device 2. supply The cleaning water supply unit 12 is an example of a channel opening/closing valve 21, a heat exchanger 22, an electrolytic bath 23, an atmospheric release type vacuum breaker (VB) 24, an electromagnetic pump 25, and a channel switching valve device. It has a certain flow adjustment/path switching valve device 50 .

The channel opening/closing valve 21 is, for example, an electromagnetic valve, and opens and closes the channel of water supplied to the cleaning water supply unit 12 on the upstream side of the cleaning water supply unit 12 . That is, the channel opening/closing valve 21 switches between supplying and stopping the cleaning water supplied from the water supply source by its opening/closing operation. The flow channel opening/closing valve 21 opens and closes based on a control signal from the control section 10 .

The heat exchanger 22 is provided downstream of the flow passage opening/closing valve 21 . The heat exchanger 22 has a heater, and the heater heats the wash water supplied from the water supply source into hot water. The temperature of hot water obtained by the heat exchanger 22 is set by the user, for example, in the operation section 11 . The washing water supplied from the washing water supply unit 12 having the heat exchanger 22 to each supply destination in this way includes the water as it is supplied from the water supply source and the hot water heated by the heat exchanger 22. be The heat exchanger 22 may be, for example, an instantaneous heating type using a ceramic heater or the like, or may be a hot water storage heating type using a hot water storage tank.

The electrolytic bath 23 is provided downstream of the heat exchanger 22 . The electrolytic bath 23 has a pair of electrodes and electrolyzes the washing water flowing between the electrodes. The electrolytic cell 23 electrolyzes chlorine ions contained in the cleaning water to generate water containing hypochlorous acid (HClO) as functional water. The energization operation in the electrolytic cell 23 is controlled based on the control signal from the control section 10 . The electrolytic bath 23 is connected to the controller 10 by a wiring 23a.

The cleaning water that has passed through the electrolytic cell 23 or the functional water generated by the electrolytic cell 23 (hereinafter collectively referred to as “cleaning water” or “water”) is passed through the electromagnetic pump 25 to the flow control/flow path switching valve. It is sent to device 50 . The flow adjustment/path switching valve device 50 is provided between the electromagnetic pump 25 and the cleaning nozzle 15 . In the flow adjustment/channel switching valve device 50, adjustment of the flow rate of cleansing water and switching of channels for a plurality of supply destinations of cleansing water are performed.

The sanitary washing device 2 according to this embodiment has a washing nozzle 15, a nozzle washing chamber 16, a spray nozzle 17, and a deodorizing unit 18 as supply destinations of washing water. The washing water supplied to the washing nozzle 15 is appropriately pulsated by the electromagnetic pump 25 .

The seating detection sensor 13 detects the user just before sitting on the toilet seat 6 or the user sitting on the toilet seat 6 as the user's seating. The seating detection sensor 13 outputs the detection signal to the control section 10 . The seating detection sensor 13 is, for example, an infrared light emitting/receiving range sensor or a switch for detecting the load of the user sitting on the toilet seat 6 .

The human body detection sensor 14 detects a user entering the toilet room in which the toilet apparatus 1 is installed. Human body detection sensor 14 outputs the detection signal to control unit 10 . The human body detection sensor 14 is, for example, a radio wave sensor such as a pyroelectric sensor using infrared signals or a microwave Doppler sensor using microwaves.

The washing nozzle 15 has a plurality of water discharge holes 26 for discharging washing water for washing the private parts of the human body (user). In the present embodiment, the washing nozzle 15 has, as the water discharge holes 26, a bottom washing water discharge hole 26a and a soft bottom water discharge hole 26b for washing the bottom, and a bidet/wide bidet washing discharge hole 26c for washing the bidet/wide bidet. It is constructed such that cleansing water can be discharged from the water discharge hole 26 . The washing nozzle 15 is provided so as to be able to advance and retreat from the device main body 4 into the bowl portion 3a of the toilet bowl 3, and extends into the bowl portion 3a in response to a switch operation or the like by the user of the toilet device 1. Washing water is jetted from the water discharge hole 26. - 特許庁

Further, in the washing nozzle 15, flow paths communicating with the respective water discharge holes 26 are formed. These flow paths constitute a part of the water supply flow path for washing the human body, which communicates with the water discharge holes 26 from the flow adjustment/flow path switching valve device 50 . The sanitary washing device 2 according to the present embodiment includes, as human body washing water supply flow paths, an anterior washing flow path 31 as a first water supply flow path, a rear soft flow path 32 as a second water supply flow path, and a bottom soft flow path 32 as a second water supply flow path. It has a bidet washing channel 33 which is the third water supply channel and a wide bidet washing channel 34 which is the fourth water supply channel.

The rear washing flow path 31 communicates with the rear washing water discharge hole 26a on the downstream side thereof, and supplies washing water to the rear washing water discharge hole 26a. The bottom soft flow channel 32 communicates with the bottom soft water discharge hole 26b on the downstream side thereof, and supplies cleansing water to the bottom soft water discharge hole 26b. The bidet cleaning channel 33 and the wide bidet cleaning channel 34 communicate with the bidet/wide bidet cleaning water discharge hole 26c on their respective downstream sides, and supply cleaning water to the bidet/wide bidet cleaning water discharge hole 26c. The configuration of the human body washing water supply flow path for the plurality of water discharge holes 26 of the washing nozzle 15 is not limited to this embodiment. It may be a configuration corresponding to .

The washing water supplied to each of the water discharge holes 26 is discharged upward from the water discharge holes 26 and used for washing the private parts of the user sitting on the toilet seat 6 . In the washing nozzle 15, the bidet/wide bidet washing water discharge hole 26c is shared by the bidet washing flow path 33 and the wide bidet washing flow path 34, and the washing water supplied from the bidet washing flow path 33 performs bidet washing. Wide bidet cleaning is performed with the cleaning water supplied from the wide bidet cleaning flow path 34 . In addition, the functional water generated by the electrolytic cell 23 is used for cleaning the water supply channel for washing the human body and the water discharge hole 26, and the like.

The nozzle cleaning chamber 16 has a water spout, and cleansing the outer surface of the cleaning nozzle 15, that is, washing the body, is performed by ejecting cleansing water from the water spout. For the nozzle cleaning chamber 16, a nozzle cleaning channel 35, which is a fifth water supply channel, is provided from the flow adjustment/channel switching valve device 50. As shown in FIG. The nozzle cleaning flow path 35 communicates with the water discharge port of the nozzle cleaning chamber 16 at its downstream side, and supplies cleaning water for nozzle cleaning to the nozzle cleaning chamber 16 .

The spray nozzle 17 has a spray port, and sprays cleansing water onto the surface of the bowl portion 3a of the toilet bowl 3 from this spray port. The spray nozzle 17 is provided inside or outside the case cover 5 . The spray nozzle 17 is provided with a toilet spray flow path 36 as a sixth water supply flow path from the flow adjustment/flow path switching valve device 50 . The toilet spray channel 36 communicates with the spray port of the spray nozzle 17 at its downstream side, and supplies flush water for toilet spray to the spray nozzle 17 .

The deodorizing unit 18 mainly sucks air outside the toilet bowl 3 (air other than the air inside the bowl portion 3a), collects or decomposes malodorous components such as ammonia contained in the sucked air, and discharges it into the toilet room. The deodorizing unit 18 has a case body 41 formed with an intake port 41a and an exhaust port 41b. 46.

The dust collection filter 42 is provided between the intake port 41a and the blower fan 43, and catches dust and dirt contained in the air sucked from the intake port 41a. The blower fan 43 sucks in the air in the toilet room from the air intake port 41a and discharges the deodorized air from the case body 41 from the air exhaust port 41b. The deodorizing filter 44 has, for example, a porous structure, is provided between the blower fan 43 and the exhaust port 41b, and retains the washing water sprayed from the spraying section 46 . The deodorizing filter 44 takes in malodorous components in the air with the retained moisture. The water receiving portion 45 is provided below the deodorizing filter 44 and receives water dropped from the deodorizing filter 44 .

The spray unit 46 has a spray port, is provided above the deodorizing filter 44 , and sprays washing water onto the deodorizing filter 44 from the spray port. The spray section 46 has an electromagnetic valve, and performs a spray operation by opening the electromagnetic valve. The solenoid valve of the spray section 46 opens and closes based on a control signal from the control section 10 . A deodorizing unit spray flow path 37, which is a seventh water supply flow path, is provided from the flow adjustment/flow path switching valve device 50 to the spray section 46 . The deodorizing unit spray channel 37 communicates with the spray port of the spray section 46 at its downstream side, and supplies cleaning water for deodorizing unit spray to the spray section 46 .

As described above, the sanitary washing device 2 according to the present embodiment includes a plurality of water dischargers for discharging water supplied from a water supply source, and a plurality of water dischargers provided upstream of the plurality of water dischargers. A flow control/channel switching valve device 50 for switching a channel for supplying water to (a water supply channel) is provided. Here, the plurality of water discharge portions provided in the sanitary washing device 2 are the plurality of water discharge holes 26 of the washing nozzle 15 , the nozzle washing chamber 16 , the spray nozzle 17 and the spray portion 46 of the deodorizing unit 18 .

That is, the flow adjustment/flow path switching valve device 50 communicates the destination of the washing water supplied via the electromagnetic pump 25 to the rear washing flow path 31 communicating with the rear washing water discharge hole 26a and the rear soft water discharge hole 26b. Bottom soft channel 32, bidet cleaning channel 33 and wide bidet cleaning channel 34 communicating with bidet/wide bidet cleaning water discharge hole 26c, nozzle cleaning channel 35 communicating with water outlet of nozzle cleaning chamber 16, spraying of spray nozzle 17 The water supply passage is switched to either the toilet bowl spray passage 36 communicating with the mouth or the deodorizing unit spray passage 37 communicating with the spray port of the spray section 46 of the deodorizing unit 18 .

In this manner, the flow adjustment/flow path switching valve device 50 is provided upstream of a plurality of water discharge sections that discharge water supplied from the water supply source, and supplies water to the water supply flow path to each water discharge section. It functions as flow path switching means for switching the flow path to be used. Further, the flow adjustment/flow path switching valve device 50 changes the flow rate of the washing water discharged from each of the water discharge holes 26 of the washing nozzle 15 .

The flow adjustment/flow path switching valve device 50 according to the present embodiment will be described below with reference to FIGS. 3 to 11. FIG. Note that FIG. 3 also shows the configuration of the cleaning water supply path and the control configuration by the control unit 10 . 5 is the front side (front side) and the opposite side (the side shown in FIG. 6) is the back side (rear side), The left side and the right side in FIG. 5 are the left side and the right side, respectively, and the upper side and the lower side in FIG. 5 are the upper side and the lower side, respectively. As shown in FIGS. 1 and 4 , the front-rear, left-right, and up-down directions of the flow adjustment/flow path switching valve device 50 correspond to the front-rear, left-right, and up-down directions of the toilet device 1 .

The flow adjustment/flow path switching valve device 50 includes a plurality of valve discs (52, 53) that switch the flow path by relative movement, a casing 51 that houses the plurality of valve discs, and a state that protrudes from the casing 51. and a drain pipe portion 54 forming a flow path for each of the plurality of water discharge portions described above.

The flow adjustment/flow path switching valve device 50 according to the present embodiment includes a plurality of valve discs, a fixed disc 52 which is a first valve disc provided in a fixed state with respect to a casing 51 , and an upper side of the fixed disc 52 . and a movable disc 53 which is a second valve disc provided rotatably with respect to the fixed disc 52 . The flow adjustment/flow path switching valve device 50 also has a motor 55 as a drive source for the disk valve mechanism. The motor 55 rotates the movable disk 53 to drive the disk valve mechanism.

The motor 55 is provided above the casing 51 . The motor 55 is, for example, a stepping motor (pulse motor) that rotates in synchronization with pulse power. The motor 55 is connected to the controller 10 via a wire 55d (see FIG. 4), and the controller 10 controls the rotation of the motor 55. As shown in FIG.

The motor 55 has a motor main body 55a containing a coil, a rotor, etc. in a substantially cylindrical case body, and a motor shaft 55b protruding from the motor main body 55a. The motor 55 has a motor shaft 55b that protrudes downward, and is provided so that the axial direction of the motor shaft 55b is the vertical direction. That is, the flow adjustment/flow passage switching valve device 50 is provided in the sanitary washing device 2 provided for the toilet bowl 3 in the toilet device 1 so that the axial direction of the motor shaft 55b is the up-down direction (vertical direction). ing.

In this manner, the flow adjustment/flow path switching valve device 50 is configured as a so-called vertical type device in which the motor 55 is arranged on the upper side of the casing 51 and the axial direction of the motor shaft 55b is the vertical direction. The drive source for the disk valve mechanism is not limited to the motor 55, and may be anything that can operate the valve disk so as to obtain the desired operation in the disk valve mechanism.

Both the fixed disk 52 and the movable disk 53 are substantially disc-shaped members. It is provided in a state of being vertically overlapped (a state of facing each other) as the upper side. The fixed disk 52 and the movable disk 53 are arranged concentrically with each other, and constitute a disk valve mechanism that changes the positional relationship by rotating the movable disk 53 to switch the flow path. In the disk valve mechanism, the movable disk 53 side is the upstream side, and the fixed disk 52 side is the downstream side. The direction of the rotation axis O1 (see FIG. 3) of the movable disk 53 is the vertical direction.

The fixed disk 52 is provided within the casing 51 so as not to be rotatable about its central axis. The fixed disk 52 includes a bottom cleaning channel 31, a bottom soft channel 32, a bidet cleaning channel 33, a wide bidet cleaning channel 34, a nozzle cleaning channel 35, a toilet spray channel 36, and a deodorizing unit spray channel. 37 has a plurality of drain ports 52a communicating with each of the water supply channels. These drain ports 52a are openings that open toward the movable disk 53 (upper side) and downward.

The movable disk 53 has substantially the same outer diameter as the fixed disk 52 and is provided above the fixed disk 52 so as to slide and rotate with respect to the fixed disk 52 . The movable disc 53 has openings 53a corresponding to each drain port 52a of the fixed disc 52, and selectively overlaps one or more of the drain ports 52a with the openings 53a according to the relative rotational position with respect to the fixed disc 52. (Communicate) and close the other drain port 52a. The drain port 52a with which the opening 53a of the movable disk 53 overlaps (communicates with) is in a state in which the washing water supplied to the channel switching valve device 50 can pass.

The movable disk 53 is connected to the motor shaft 55b via a shaft support member 56 fixed to the motor shaft 55b. The shaft support member 56 has a cylindrical main body portion 56a for receiving and fixing the motor shaft 55b with the upper side as an open side, and a diameter-enlarged cylindrical portion 56b provided at an intermediate portion in the axial direction of the cylindrical main body portion 56a. and a shaft-shaped support shaft portion 56c protruding downward from the cylindrical main body portion 56a.

The shaft support member 56 is connected to the motor shaft 55b so as to be non-rotatable relative to the motor shaft 55b by inserting the motor shaft 55b into the cylindrical body portion 56a from above. The shaft support member 56 is fixed to the movable disk 53 with the shaft portion 56c passing through the movable disk 53 from above. At the center of the movable disk 53, a cylindrical boss portion 53b protruding upward is provided as a portion through which the support shaft portion 56c is inserted so as not to rotate relative to it. A key portion 56d projecting from the support shaft portion 56c is fitted into a key groove portion 53d formed in the boss portion 53b, thereby restricting relative rotation between the shaft support member 56 and the movable disk 53. FIG.

A ring-shaped spring seat member 57 is fitted around the lower end of the cylindrical main body portion 56a of the shaft support member 56, and a coil spring 58 is provided between the spring seat member 57 and the movable disk 53. It is The coil spring 58 is provided so as to pass through the support shaft portion 56c of the support member 56. As shown in FIG. The coil spring 58 has its upper side in contact with the spring seat member 57 and its lower side in contact with the root portion (lower outer peripheral portion) of the boss portion 53 b of the movable disk 53 . The movable disk 53 is urged downward against the supporting member 56 . The spring seat member 57 is engaged with the shaft support member 56 by a stepped portion formed at the lower end of the cylindrical main body portion 56a, and upward movement of the spring seat member 57 with respect to the shaft support member 56 is restricted. ing.

With such a configuration, the flow adjustment/flow path switching valve device 50 rotates the movable disk 53 by driving the motor 55, thereby allowing water to flow through the plurality of drainage ports 52a of the fixed disk 52. It selectively switches the port 52a. As a result, the bottom washing channel 31, the bottom soft channel 32, the bidet cleaning channel 33, the wide bidet cleaning channel 34, the nozzle cleaning channel 35, and the toilet spraying channel 36 are controlled according to the selected drain port 52a. , and the deodorizing unit spraying flow path 37 are selectively supplied with washing water.

The casing 51 has a housing body portion 61 which is a substantially cylindrical portion and houses the fixed disk 52 and the movable disk 53 and the like, and a drainage channel forming portion 62 which constitutes the lower portion of the casing 51 .

The housing main body 61 has a substantially cylindrical peripheral wall 63 whose vertical direction is the cylinder axis direction, and an overhang 64 that protrudes radially outward from the peripheral wall 63 at the top of the peripheral wall 63 . The protruding portions 64 are provided at two locations on the front and rear sides of the peripheral wall portion 63 that are substantially opposed to each other in the circumferential direction. The protruding portion 64 is a protruding portion along the outer shape of a substantially triangular prism having a substantially triangular shape with the vertex side as the projecting end side in plan view.

Inside the peripheral wall portion 63 , the housing body portion 61 forms a cylindrical housing space 63 a along the cylindrical outer shape of the peripheral wall portion 63 . A horizontal bottom surface 63d is provided below the housing space 63a, and the fixed disk 52 is positioned on the bottom surface 63d. That is, the fixed disk 52 is provided at the lower end of the accommodation space 63a, and the movable disk 53 is provided thereon. In addition, the housing main body 61 has an upper side open in a substantially circular shape following the cylindrical shape of the peripheral wall 63, and the motor shaft 55b is positioned at the center of the upper opening.

A sealing member 65 made of rubber or the like is provided between the fixed disk 52 and the bottom surface 63d. The sealing member 65 is fitted in a recess 52b formed on the lower side of the fixed disk 52. As shown in FIG. The sealing member 65 has a predetermined shape so as to partition the flow paths corresponding to the formation sites of the plurality of drain ports 52a of the fixed disk 52 .

The housing main body 61 forms a substantially horizontal upper end surface 51 a in the casing 51 . The upper end surface portion 51 a includes the upper opening end surface of the peripheral wall portion 63 and the upper surfaces of the projecting portions 64 at two locations. A motor 55 is provided on the upper end face portion 51 a of the casing 51 via an interposed plate 71 .

The interposed plate 71 is a plate-like member having a shape corresponding to the shape of the upper end surface portion 51a of the casing 51. The lower plate surface of the interposed plate 71 is aligned with the upper end surface portion 51a, and the motor 55 is mounted on the upper plate surface. To support. The interposed plate 71 has a predetermined concave-convex shape portion corresponding to the shape portion for positioning formed on the motor 55 side on the upper surface portion, and is provided in a state of being sandwiched between the casing 51 and the motor 55 . It is

The motor 55 is fixed to the casing 51 at two locations by screws 72 screwed into the projecting portions 64 . For this reason, each projecting portion 64 is formed with a screw hole 64a into which the screw 72 is screwed so as to open upward. A hole portion 71b through which the screw 72 is passed is formed in the top portion 71a of the portion corresponding to the projecting portion 64. As shown in FIG.

Further, in the motor 55, plate-like fixing projecting pieces 55c projecting radially outward are provided at positions corresponding to the projecting portions 64 from the lower end portion of the substantially cylindrical case body. there is A hole through which the screw 72 is passed is formed in the fixing protrusion 55 c , and the fixing protrusion 55 c overlaps the interposed plate 71 . The screw 72 passes through the fixing protruding piece 55c and the top portion 71a of the interposed plate 71 and is screwed into the screw hole 64a of the projecting portion 64 to fix the motor 55 to the casing 51 . In this manner, the motor 55 is provided on the upper side of the accommodation body portion 61 of the casing 51 via the interposed plate 71 .

A cylindrical sleeve member 74 that is open at the top and bottom is provided in the accommodation body portion 61 of the casing 51 . The sleeve member 74 has an outer peripheral surface 74 a along the cylindrical surface and has an outer diameter substantially the same as the inner diameter of the peripheral wall portion 63 of the accommodation body portion 61 , and is fitted into the peripheral wall portion 63 . The sleeve member 74 is provided so as not to rotate relative to the casing 51, that is, in a fixed state. That is, it is a part integral with the casing 51 and is a structure on the casing 51 side. An outer peripheral groove 74b is formed in the substantially central portion of the sleeve member 74 in the vertical direction, and an O-ring 75 is fitted in the outer peripheral groove 74b. The O-ring 75 seals the space between the sleeve member 74 and the inner peripheral surface 63b of the peripheral wall portion 63 forming the accommodation space 63a.

The sleeve member 74 has the movable disk 53 positioned in the lower end portion that is open downward, and the lower open end is brought into contact with the outer edge portion of the fixed disk 52 from above. The outer diameter of the movable disk 53 is substantially the same as the inner diameter of the lower end of the sleeve member 74 .

The sleeve member 74 has a diameter-reduced portion on the inner peripheral side of its upper portion, the inner diameter of the sleeve member 74 being partially reduced. A reduced diameter hole portion 74d is formed. The axial support member 56 penetrates vertically through the reduced diameter hole portion 74d. The axial support member 56 has an outer diameter of the enlarged diameter portion 56b that substantially matches the inner diameter of the reduced diameter hole portion 74d, and is provided in a state in which the enlarged diameter portion 56b is inserted into the reduced diameter hole portion 74d. ing.

In the diameter-reduced hole portion 74d, an annular packing 76 as a sealing member made of rubber or the like is fitted around the cylindrical main body portion 56a of the pivot member 56. As shown in FIG. The packing 76 is provided between the enlarged diameter portion 56b and the spring seat member 57 located therebelow, and seals between the shaft support member 56 and the inner peripheral surface forming the diameter reduced hole portion 74d. In this embodiment, the packing 76 is a so-called Y packing having a substantially "Y" cross-sectional shape, and is provided with the opening side (branching side) of the cross-sectional shape facing downward.

In the above configuration, the space around the movable disk 53 below the diameter-reduced portion forming the diameter-reduced hole portion 74d of the sleeve member 74 is supplied to the flow adjustment/flow passage switching valve device 50 and It becomes a reservoir 77, which is a region in which the cleaning water supplied to is temporarily accumulated. Specifically, the reservoir 77 is mainly formed by the upper surface of the movable disk 53, the outer peripheral surface of the boss portion 53b of the movable disk 53, the inner peripheral surface of the lower portion of the sleeve member 74, the lower surface of the reduced diameter portion, and the like. This is the space portion (see dashed frame A1 in FIG. 10). The upper side of the pool portion 77 is sealed by the packing 76 externally fitted on the shaft support member 56 as described above. In other words, the packing 76 makes the upper portion of the accommodation space 63a watertight with respect to the reservoir portion 77, which is the space portion that receives the supply of water.

As described above, the flow adjustment/flow path switching valve device 50 according to the present embodiment includes a movable portion including the movable disk 53 as a movable valve body that operates to switch the flow path, and a casing 51 that accommodates the movable portion. and a packing 76 as a sealing member provided between the movable portion and the casing 51 side.

In this embodiment, the movable portion including the movable disk 53 is a portion that rotates integrally with the motor shaft 55b, and includes a shaft support member 56 into which the motor shaft 55b is fitted, and a shaft support member 56 that is externally fitted to the shaft support member 56. It is composed of a spring seat member 57 and a movable disk 53 through which a shaft support member 56 is passed. The packing 76 is fitted on the pivot member 56 to form a portion that rotates together with the movable portion. Accordingly, the packing 76 rotates along with the rotation of the movable portion, with the inner peripheral surface forming the diameter-reduced hole portion 74d of the sleeve member 74 constituting the casing 51 serving as a sliding contact surface. In other words, the packing 76 becomes a sliding portion as the movable disk 53 rotates. Therefore, the packing 76 is appropriately coated with grease.

In the flow adjustment/flow path switching valve device 50 , a water supply path, which is a water inlet path for cleaning water, is provided so as to communicate with the pool portion 77 . The water supply path has a hollow cylindrical water inlet pipe portion 79 provided through a water flow block portion 78 with respect to the peripheral wall portion 63 of the accommodation main body portion 61 . The water flow block portion 78 and the water inlet pipe portion 79 are provided at substantially the same height position as the reservoir portion 77 . The height positions of the water flow block portion 78 and the water inlet pipe portion 79 are the height positions of the upper and lower substantially central portions of the peripheral wall portion 63 .

In this embodiment, the water flow block portion 78 and the water inlet pipe portion 79 are provided at the left rear portion of the peripheral wall portion 63, and the water inlet pipe portion 79 horizontally protrudes rearward. Specifically, the water flow block portion 78 is a block-shaped portion projecting from the outer peripheral surface 63 c of the peripheral wall portion 63 , and the water inlet pipe portion 79 projects from the rear side surface of the water flow block portion 78 . . A pipe such as a water supply pipe (not shown) is connected to the water inlet pipe portion 79 to supply washing water from the electromagnetic pump 25 .

A water supply passage 63 f that communicates with the reservoir 77 is formed in the portion where the water passage block portion 78 is formed in the housing body portion 61 . One side of the water supply passage 63f communicates with the base end side of the water inlet pipe portion 79, and the other side opens toward the peripheral wall portion 63 side. The other side of the water supply conduit 63f communicates with the reservoir 77 via a water conduit 74f formed through the lower peripheral wall of the sleeve member 74 forming the reservoir 77 .

As described above, the casing 51 is provided with the water supply passage 63 f through which the water supplied from the water supply source to the washing water supply unit 12 flows into the casing 51 . The housing body 61 of the casing 51 has a peripheral wall 63 that surrounds the fixed disk 52 and the movable disk 53 and opens the water supply passage 63f.

The drainage channel forming portion 62 that constitutes the casing 51 together with the housing body portion 61 will be described. The drainage channel forming portion 62 is a block-shaped portion formed so as to protrude in both front and rear directions with respect to the substantially cylindrical housing body portion 61 .

A plurality of drain pipe portions 54 are arranged in the drain channel forming portion 62 . The drain pipe portion 54 is a hollow cylindrical portion. In this embodiment, there are provided seven drain pipe portions 54 that respectively constitute the seven water supply flow paths (31 to 37) described above. Each drain pipe portion 54 is connected to a pipe or the like constituting each water supply channel (31 to 37). That is, a water supply channel including a drain pipe portion 54 projecting from a drain channel forming portion 62 forming a casing 51 is formed for each supply destination of water from the flow adjustment/channel switching valve device 50 . there is The drain channel forming portion 62 forms an in-case channel 81 that communicates with the drain pipe portions 54 below the movable disc 53 and the fixed disc 52 (see FIG. 10).

In the drain channel forming portion 62 , each case inner channel 81 opens upward so that its upstream side communicates with each drain port 52 a of the fixed disk 52 . That is, in the drainage channel forming portion 62, the case internal channels 81 corresponding to the seven water supply channels (31 to 37) are formed. It communicates with the drain port 52a. The downstream side of each in-case channel 81 communicates with the base end side of the drain pipe portion 54 .

In this embodiment, two drainage pipe portions 54 (54A, 54B) are provided on the right side of the drainage channel forming portion 62, and two drainage pipe portions 54 (54C, 54B) are provided on the rear side of the drainage channel forming portion 62. 54D) are provided, and three drain pipe portions 54 (54E, 54F, 54G) are provided on the front side of the drain passage forming portion 62. As shown in FIG.

Specifically, two drain pipe portions 54A and 54B horizontally protrude rightward from the lower portion of the peripheral wall portion 63 on the right side of the drain passage forming portion 62 . The two drain pipe portions 54A and 54B are arranged side by side.

A block-shaped projecting portion 62c is horizontally projected from the rear side of the drainage channel forming portion 62. As shown in FIG. In the protruding portion 62c, the drainage pipe portion 54C is projected horizontally toward the right from the front and rear inner (front side) portions thereof. ), and a drain pipe portion 54D horizontally protrudes rightward from the left portion. The two drain pipe portions 54C and 54D are provided at substantially the same height position as the drain pipe portions 54A and 54B.

Further, on the front side of the drainage channel forming portion 62, two drainage pipe portions 54E and 54F are provided horizontally projecting forward at a portion below the projecting portion 64 on the front side. A drain pipe portion 54F is provided at a position on the upper right side of the drain pipe portion 54E. Further, a drain pipe portion 54G is vertically protruded upward at a portion on the right side of the drain pipe portion 54F.

An example of the correspondence relationship between these drain pipe portions 54 and the above-described seven water supply flow paths is as follows. Four drainage pipe portions 54 (54A, 54B, 54C, 54D) protruding to the right are water supply channels for washing the human body (bottom washing channel 31, bottom soft water channel 31) among the seven water supply channels described above. Any one of the flow path 32, the bidet washing flow path 33, and the wide bidet washing flow path 34) is configured. In addition, the three drain pipe portions 54 (54E, 54F, 54G) disposed on the front side of the casing 51 are connected to the remaining three water supply flow paths (nozzle cleaning flow path 35, toilet spray flow path 36, deodorizing flow path 36). It constitutes any of the unit spray flow paths 37).

The flow of cleaning water in the flow adjustment/flow path switching valve device 50 having the above configuration will be described with reference to FIG. 10 . As shown in FIG. 10, the wash water that has passed through the electromagnetic pump 25 flows from the water inlet pipe portion 79 into the reservoir portion 77 via the water supply passage 63f. The wash water flowing into the reservoir 77 flows downward from the opening 53a of the movable disk 53 to the drain port 52a communicating with the opening 53a based on the movement of the movable disk 53. As shown in FIG.

The washing water that has passed through the drain port 52a flows into the case-internal channel 81 that opens to the upper surface 62a of the drain-channel forming portion 62 and communicates with the drain port 52a, and then flows into the case-internal channel 81 that communicates with the drain pipe portion 54. and is discharged to the water supply channel including the drain pipe portion 54, and the washing water is supplied to the supply destination corresponding to the water supply channel. That is, washing water flows into the reservoir 77 from one water inlet pipe 79, and the washing water in the reservoir 77 changes depending on the opening 53a of the movable disk 53 and the rotational position of the movable disk 53. The water flows downward to the drain port 52a of the fixed disk 52 with which the opening 53a communicates, passes through the case inner channel 81 corresponding to the drain port 52a, and is discharged from the drain pipe portion 54 corresponding to the case inner channel 81. be.

In the sanitary washing device 2, after the supply of washing water to the supply destination selected by the operation of the flow adjustment/flow path switching valve device 50 based on the operation of the operation unit 11 is completed, the washing water is accumulated in the casing 51. Drainage is performed to discharge the washed water to the outside of the casing 51 . Water is drained from the casing 51 by opening the space communicating with the casing 51 to the atmosphere by operating the vacuum breaker 24 while the opening 53a of the movable disk 53 is in communication with the drain port 52a of the fixed disk 52. .

In the flow adjustment/flow path switching valve device 50 of the present embodiment as described above, in order to seal the pool portion 77 which is a space portion receiving water supply inside the casing 51, the peripheral wall of the casing 51 and the movable disk A packing 76 is interposed between 53 and a shaft support member 56 that rotates integrally. In such a configuration, the sealing performance of the packing 76 deteriorates due to aged deterioration such as wear of the packing 76 and outflow of grease. Water leakage from the seal portion by 76 may occur.

Specifically, the leakage destination of water leakage from the sealing portion by the packing 76 is an upper space 85 (see FIG. 10), which is a space portion above the packing 76 in the accommodation space 63a of the accommodation body portion 61 . The upper space 85 is a space formed mainly around the upper end of the pivot member 56 above the diameter-reduced hole 74d of the sleeve member 74, the interposed plate 71, and the like. Since the upper space 85 is not originally a space into which water flows, if water leaks from the sealing portion of the packing 76 and accumulates in the upper space 85, it may cause malfunction of devices such as the motor 55 and the like. Therefore, in the flow adjustment/flow path switching valve device 50 , water leakage from the sealing portion by the packing 76 is discharged to the outside from the upper space 85 formed in the upper portion of the casing 51 .

Leakage of water discharged to the outside of the casing 51 (hereinafter referred to as "discharged water leakage") is detected, for example, in the sanitary washing device 2 by the device main body 4 containing various devices and devices including the flow adjustment/flow path switching valve device 50. is dropped into the case cover 5 and discharged to the outside. Specifically, for example, the discharged water is discharged to the bowl portion 3 a of the toilet bowl 3 along the base portion forming the bottom portion of the case cover 5 .

In the case cover 5 of the device main body 4, other parts (peripheral parts) such as various devices and devices including wiring etc. are arranged around the flow adjustment/flow path switching valve device 50. As shown in FIG. Specifically, in this embodiment, as shown in FIGS. 12 to 14, an electrolytic cell 23 is provided as a peripheral component at a position immediately to the left of the flow adjustment/flow path switching valve device 50. . In the case cover 5, the washing nozzle 15 is provided in the vicinity of the right side of the flow adjustment/flow path switching valve device 50, with the longitudinal direction thereof being the front-rear direction in a plan view.

As shown in FIGS. 12 to 14, the electrolytic cell 23 includes a case main body portion 91 having a substantially rectangular thick plate-like flat outer shape and accommodating a pair of electrodes and the like, and a longitudinal direction of the case main body portion 91. It has an inlet portion 92 provided on one side and an outlet portion 93 provided on the other side in the same longitudinal direction.

The electrolytic cell 23 is provided in such a posture that the plate thickness direction of the case body main body portion 91 is the left-right direction, and the longitudinal direction of the case body main body portion 91 is inclined forward and downward. Further, the electrolytic bath 23 is provided with the inflow port portion 92 on the front side and the outflow port portion 93 on the rear side.

The inlet portion 92 has a tubular protrusion 92a that protrudes in a tubular shape toward the flow adjustment/flow path switching valve device 50 side (right side) with respect to the case body main body portion 91, and a front lower portion from the tubular protrusion 92a. and an inflow pipe portion 92b protruding toward. An inflow pipe for causing the water that has passed through the heat exchanger 22 to flow into the electrolytic bath 23 is connected to the inflow pipe portion 92b. The outflow port portion 93 has a cylindrical projection 93a projecting toward the flow adjustment/flow path switching valve device 50 side (right side) with respect to the case body main body portion 91, and a cylindrical projection 93a projecting backward from the cylindrical projection 93a. and an outflow pipe portion 93b protruding toward. An outflow member for causing the water that has passed through the electrolytic cell 23 to flow out to the vacuum breaker 24 side is connected to the outflow pipe portion 93b.

Further, in the electrolytic bath 23, the wirings 23a electrically connected to the respective electrodes in the case body body portion 91 extend outside from the case body body portion 91. As shown in FIG. Of the two wires 23a, the wire 23a1 connected to one electrode extends out of the case from the outer surface 91a, which is the left plate surface, in the front part of the case body main body 91. From the lower side, it wraps around to the inner surface 91b side which is the plate surface on the right side, passes through between the case body main body 91 and the flow adjustment/flow path switching valve device 50, and is rear left with respect to the case body main body 91. It is routed so as to face the direction. A hook portion 94 is provided on the upper side surface 91c of the front portion of the case body main body portion 91, and the wiring 23a1 routed from the inner side surface 91b side of the case body main body portion 91 to the rear upper left corner is connected to the hook portion. It is locked to the case body main portion 91 by 94 .

Further, of the two wires 23a, the wire 23a2 connected to the other electrode extends out of the case from the inner side surface 91b at the rear part of the case main body portion 91 and extends forward along the inner side surface 91b. It is engaged with the case main body 91 by a hook portion 94, and is routed from the inner surface 91b side of the case main body 91 to the rear upper left side in the same manner as the wiring 23a1. Connectors 95 are provided at the ends of the two wires 23 a , and the two wires 23 a are connected to the controller 10 via one connector 95 .

In this embodiment, the electrolytic cell 23 is provided so as to cover most of the upper half of the flow adjustment/flow path switching valve device 50 when viewed from the left side of the flow adjustment/flow path switching valve device 50 ( See Figure 13). Specifically, in the vertical direction, the electrolytic cell 23 has its lower end located at approximately the same height as the water inlet pipe portion 79 and its upper end located at approximately the same height as the upper end of the motor 55 . In the front-rear direction, the electrolytic cell 23 is arranged so that the cylindrical projection 92 a of the inlet portion 92 provided on the front side of the case body main portion 91 is positioned on the front left side of the flow control/flow path switching valve device 50 . Positioned above the drain pipe portion 54E, the cylindrical projection 93a of the outflow port portion 93 provided on the rear side of the case body main portion 91 is positioned on the left rear side of the flow adjustment/flow path switching valve device 50. It is positioned above the water inlet pipe portion 79 . A gap 96 between an inner surface 91b, which is a plate surface on the side of the flow adjustment/flow switching valve device 50, and the casing 51 of the flow adjustment/flow switching valve device 50 in the case body main body 91 of the electrolytic cell 23. , two wires 23a are located.

In the arrangement configuration of the electrolytic cell 23 with respect to the flow control/flow path switching valve device 50 as described above, from the viewpoint of avoiding the adverse effect of water on the electrolytic cell 23, discharge leakage from the flow control/flow path switching valve device 50 should be avoided from contacting the electrolytic bath 23 . Specifically, for example, when discharged water leaks from the flow adjustment/flow path switching valve device 50 and hits the wiring 23a of the electrolytic cell 23, the discharged water leaks into the case main body 91 or the connector 95 along the wiring 23a. This may cause problems such as electrical shorts and poor contact.

Therefore, in the flow adjustment/path switching valve device 50 of the present embodiment, the following configuration is provided as a drainage structure for guiding the leaked water discharged from the casing 51 to a predetermined portion. That is, as shown in FIGS. 15 to 20, in the flow control/flow path switching valve device 50 of the present embodiment, the casing 51 includes a drainage for discharging water leaked from the sealing portion by the packing 76 to the outside of the casing 51. It has a port 101 and a drainage channel portion 102 for guiding leaked water (discharged water leakage) discharged from the drain port 101 to a predetermined position.

As described above, the flow adjustment/flow path switching valve device 50 of the present embodiment is of a vertical configuration in which the axial direction of the motor shaft 55b of the motor 55 is the vertical direction. flows into the upper space 85 within the casing 51 . Therefore, the drain port 101 is provided so as to open the upper space 85 sideways, and is formed at a position higher than the packing 76 . The drained water discharged from the drain port 101 is guided to a predetermined portion by the drain channel portion 102 while flowing down by gravity from the upper end portion of the casing 51 located at a high position.

Further, in the present embodiment, the drain port 101 is provided at the upper left portion of the upper end portion of the casing 51 from the following point of view. That is, since the washing nozzle 15 is arranged adjacently to the right side of the flow adjustment/flow path switching valve device 50, it is necessary to avoid interference between the flow path of the discharged leaked water and the arrangement structure of the washing nozzle 15. be. Moreover, since the drained water is discharged to the bowl portion 3a positioned in front of the case cover 5 in which the flow adjustment/flow path switching valve device 50 is built, it is desirable that the drain port 101 is positioned on the front side. Therefore, the discharged water is discharged from the front left portion of the upper end of the casing 51 .

The drain port 101 has a notch-like opening 111 formed by partially notching the upper ends of the housing main body 61 and the sleeve member 74 in the circumferential direction, and is closed from above by the interposing plate 71 . It is formed by being Details are as follows.

The housing main body 61 of the casing 51 has an upper end surface 51 a along the horizontal plane as a mounting surface for the interposed plate 71 . In addition, the cylindrical sleeve member 74 housed in the housing main body 61 has its upper end surface mostly positioned substantially flush with the upper end surface portion 51a. A space inside an upper end peripheral wall portion 74 e , which is a peripheral wall portion above the reduced diameter hole portion 74 d in the sleeve member 74 , serves as an upper space 85 . That is, inside the upper end peripheral wall portion 74e, the cylindrical main body portion 56a projects upward at the central portion with respect to the enlarged diameter portion 56b of the pivot member 56, and the circumference of the cylindrical main body portion 56a is an upper space. 85.

In the sleeve member 74, an inner cutout portion 112 forming a portion on the inner peripheral side of the opening 111 is formed in the front left portion of the upper end peripheral wall portion 74e. The inner notch portion 112 is a portion obtained by notching a portion of the upper end peripheral wall portion 74e in the circumferential direction within a predetermined angular range. The surfaces forming the inner notch portion 112 include an upper surface 112a flush with the upper surface of the diameter-reduced hole portion 74d, and peripheral wall side end surfaces 112b and 112c on both sides in the circumferential direction of the upper end peripheral wall portion 74e. The upper surface 112a is a horizontal surface, and the peripheral wall side end surfaces 112b and 112c are vertical surfaces.

In addition, in the peripheral wall portion 63 of the casing 51 located on the outer peripheral side of the sleeve member 74, a portion on the outer peripheral side of the opening 111 is formed in the left front portion so as to correspond to the formation portion of the inner notch portion 112. An outer notch 113 is formed. The outer cutout portion 113 is a portion of the upper end portion of the peripheral wall portion 63 cut out in a predetermined angular range in the circumferential direction. The surface forming the outer cutout portion 113 includes an upper surface 113a flush with the upper surface 112a forming the inner cutout portion 112, a peripheral wall side end surface 113b on the rear side in the circumferential direction of the peripheral wall portion 63, and an overhanging portion on the front side. 64 and the left rear slanted side wall surface 113c. The upper surface 113a is a horizontal surface, and the peripheral wall side end surface 113b and the inclined side wall surface 113c are vertical surfaces.

The peripheral wall side end surfaces 112b and 112c forming the inner notch 112 are both formed as surfaces along the radial direction of the circumference centered on the rotation axis O1 in a plan view (axial view of the rotation axis O1). . In particular, the peripheral wall side end face 112b on the rear side has a position in the front-rear direction (vertical direction in FIG. 18) substantially aligned with the rotation axis O1.

The peripheral wall side end surface 113b forming the outer notch 113 is formed as a surface along the radial direction of the circumference around the rotation axis O1 in a plan view, and the position of the circumference in the circumferential direction is defined by the peripheral wall side end surface. 112b and substantially the same. The inclined side wall surface 113c forming the outer notch 113 is inclined in the direction of narrowing the opening width of the opening 111 from the inner peripheral side to the outer peripheral side in plan view.

The upper surface 112a of the inner cutout portion 112 and the upper surface 113a of the outer cutout portion 113 are positioned substantially on a common horizontal plane and are substantially continuous with each other with a small gap therebetween. The peripheral wall side end face 112b on the rear side of the inner notch portion 112 and the peripheral wall side end face 113b of the outer notch portion 113 are positioned substantially on a common vertical plane and are substantially continuous with each other with a small gap therebetween. The peripheral wall side end surface 112c on the front side of the inner cutout portion 112 and the inclined side wall surface 113c of the outer cutout portion 113 are substantially continuous with each other with a small gap therebetween. The inclined side wall surface 113c is inclined in a direction of narrowing the opening width of the opening 111 from the inner peripheral side to the outer peripheral side with respect to the radial direction of the circumference around the rotation axis O1 in plan view. In this manner, the inner cutout portion 112 and the outer cutout portion 113 are substantially continuous with each other, forming an opening 111 that communicates the upper space 85 with the outside.

In this embodiment, the openings 111 are formed in an angular range of approximately 70° with respect to the circumferential direction about the rotation axis O1. That is, as shown in FIG. 18, among straight lines passing through the rotation axis O1 in a plan view, a straight line L1 on which the rear peripheral wall side end surface 112b is located and a straight line L2 on which the front peripheral wall side end surface 112c is located form. The angle θ1 is about 70°. However, the size of the angle θ1 is merely an example, and is not limited to this embodiment. , for example, the angle θ1 is formed within the range of 60° to 80°.

Drained water discharged from the drain port 101 is guided by the drain channel portion 102 outside the casing 51 . The drainage channel section 102 includes a covering wall section 115 as a covering section that covers the drainage port 101 from at least one side.

The cover wall portion 115 is a plate-like portion whose thickness direction is the left-right direction, has an outer shape along a substantially rectangular shape, and is provided so as to cover the drain port 101 from the left side. The covering wall portion 115 extends forward from the left end of the peripheral wall portion 63 so as to be tangential to the substantially cylindrical peripheral wall portion 63 in plan view, and is formed along the front-rear direction. It is

The cover wall portion 115 is formed in a range from approximately the same position as the peripheral wall side end surface 112b forming the rear end of the opening 111 to approximately the same position as the front end of the inclined side wall surface 113c in the front-rear direction. The covering wall portion 115 has a vertical front end face 115a. In addition, the cover wall portion 115 is formed in a substantially upper half portion of the peripheral wall portion 63 with a horizontal upper end surface 115b positioned on the same plane as the upper end surface portion 51a in the vertical direction. The covering wall portion 115 is formed so as to cover the entire opening 111 when viewed from the left side.

Covering wall portion 115 , along with inclined side wall surface 113 c of outer notch portion 113 , gradually narrows the width of the flow path for discharged leaking water from the opening width of inner notch portion 112 from the inner peripheral side to the outer peripheral side. That is, as shown in FIG. 18, in plan view, the covering wall portion 115 extends forward from the rear end of the opening 111, whereas the inclined side wall surface 113c extends forward from the rear. It is inclined from the right side to the left side, and the channel width gradually narrows from the rear side to the front side. The cover wall portion 115 and the inclined side wall surface 113c are open on the front side.

The drainage channel portion 102 has an upper channel portion 121 as a first channel portion and a lower channel portion 122 as a second channel portion. The upper flow path portion 121 is a flow path portion that has a covering wall portion 115 and allows leaked water discharged from the drain port 101 to flow down. The lower flow path section 122 is a flow path section that has a receiving surface 125 that receives the leaked water flowing down from the upper flow path section 121 and guides the leaked water on the receiving surface 125 to the downstream side of the drain flow path section 102 .

The upper channel portion 121 will be described. The upper flow path portion 121 mainly includes a covering wall portion 115, an inner peripheral wall portion 116 which is a part of the peripheral wall portion 63 and is a portion below the outer notch portion 113, the covering wall portion 115, and the inner peripheral wall portion. 116 and an upper bottom surface portion 117 provided between the lower portions thereof. That is, the surfaces forming the upper flow path portion 121 include the inner wall surface 115 c of the covering wall portion 115 , the outer wall surface of the inner peripheral wall portion 116 , and the upper surface of the upper bottom surface portion 117 .

The upper flow path part 121 has an open front side, and allows discharged and leaked water that has flowed in from the drain port 101 to flow down from the front side. Specifically, the front edge of the cover wall portion 115, the front edge of the inner peripheral wall portion 116 below the corner formed by the left side surface of the front overhang portion 64 and the inclined side wall surface 113c, and the upper bottom surface portion 117 A front opening portion 124 of the upper flow path portion 121 is formed by the front edge of the upper flow path portion 121 .

An inner wall surface 115c of the covering wall portion 115 is a vertical plane facing rightward, and has a portion that protrudes upward from the upper surface 113a and a portion that protrudes forward from the outer wall surface of the inner peripheral wall portion 116. . The outer wall surface of the inner peripheral wall portion 116 has an upper inclined surface 116a inclined downward from the inner peripheral side to the outer peripheral side of the peripheral wall portion 63, and a lower vertical vertical wall surface 116b. Most of the inclined surface 116a has an inclined shape along a tapered surface that reduces the diameter of the peripheral wall portion 63 from the lower side to the upper side. The left portion of the outer wall surface of the inner peripheral wall portion 116 is connected to the inner wall surface 115c of the covering wall portion 115 forming a convex curved surface on the rear side in plan view.

The top surface of the upper bottom surface portion 117 has a substantially horizontal (slightly downwardly forward) bottom surface 117a and a front inclined plane 117b formed on the front side of the bottom surface 117a and downwardly downward. The bottom surface 117a has a substantially right-angled triangular shape with the left front side as the right-angled side in a plan view.

As described above, the upper flow path portion 121 has the cover wall portion 115, the inner peripheral wall portion 116, and the upper bottom surface portion 117 on the front left side of the peripheral wall portion 63, and the discharged water discharged from the drain port 101 flows out from the front side. It constitutes a gutter-shaped flow path that allows The discharged water discharged from the front opening 124 of the upper flow path 121 flows down onto the receiving surface 125 .

In addition, the upper channel portion 121 has a drooping portion 130 for causing leaked water discharged from the drain port 101 to flow down to the receiving surface 125 . The drooping portion 130 is a portion that forms the lower edge of the open portion on the front side of the upper flow path portion 121, and bends downward on the front side of the substantially horizontal plate-like portion that forms the upper bottom surface portion 117. It is a formed vertical plate-like portion. That is, the drooping portion 130 is a plate-like portion having a plate thickness direction in the front-rear direction, which is formed in such a manner that the lower edge of the front opening of the upper flow passage portion 121 protrudes downward. be.

The drooping portion 130 has a sharp downward shape. Specifically, the drooping portion 130 has a front surface 131 that is a vertical plane. A front surface 131 of the drooping portion 130 is flush with the front end surface 115 a of the covering wall portion 115 . On the other hand, the rear upper portion of the drooping portion 130 forms a vertical rear surface 132 forming a right angle together with the lower surface 117c of the upper bottom portion 117 forming a horizontal shape. A rear inclined surface 133 is inclined in a direction approaching the front surface 131 from the lower end to the lower side.

In this way, the drooping portion 130 has a sharp shape in which the front surface 131 and the rear inclined surface 133 gradually reduce the dimension in the front-rear direction, that is, the plate thickness, from the top to the bottom in a side cross-sectional view (see FIG. 21). Note that the drooping portion 130 has substantially constant shape and dimensions in the left-right direction. The hanging portion 130 has a lower tip surface as a horizontal lower end surface 134 that connects the lower ends of the front surface 131 and the rear inclined surface 133 .

In the drooping portion 130, the angle θ2 (see FIG. 21) formed by the front surface 131 and the rear inclined surface 133 is, for example, about 45°. However, the magnitude of the angle θ2 is merely an example, and the drooping portion 130 is formed so that the angle θ2 is an acute angle, for example, although it is not limited to this embodiment. In the configuration having the hanging portion 130 having such a shape, the upper flow passage portion 121 is formed by the bottom surface 117a of the upper bottom surface portion 117, the front inclined surface 117b, and the front surface 131 of the hanging portion 130, thereby forming a continuous flow passage surface in a curved shape. forming.

On the right side of the drooping portion 130 , a ridge portion 135 is formed by protruding the inner peripheral wall portion 116 of the upper flow path portion 121 from the front surface 131 of the drooping portion 130 . The ridge portion 135 is formed in a range from a portion below the left end of the front projecting portion 64 to a position below the lower end of the drooping portion 130 along the vertical direction.

The lower flow path portion 122 will be described. In the lower channel portion 122 , the receiving surface 125 is a horizontal surface provided below the front opening position of the upper channel portion 121 , that is, below the drooping portion 130 . The receiving surface 125 is formed on the front left side (lower left side in FIG. 18) of the front projecting portion 62d projecting forward from the housing main body portion 61 in the drainage channel forming portion 62 constituting the casing 51. As shown in FIG. The left side of the receiving surface 125 is connected to the vertical left side surface 62f via an R-shaped curved surface portion 62e forming the upper left corner of the front projecting portion 62d.

The receiving surface 125 is surrounded by a wall-like portion or a ridge portion except for the left side. Therefore, the drained water that has flowed down from the upper flow path portion 121 to the receiving surface 125 is guided downward from the left side of the receiving surface 125 along the left side surface 62f.

The lower flow path portion 122 has a front rib portion 141 , a right rib portion 142 , a rear wall portion 143 , and a main body wall portion 144 as portions surrounding the receiving surface 125 .

The front rib portion 141 has a front horizontal rib portion 146 forming a barrier-like portion on the front side of the receiving surface 125, and a front vertical rib portion 147 forming a barrier-like portion on the front side of the left side surface 62f. The front rib portion 141 is formed of a wall-like or plate-like portion that forms a front end surface from which the drain pipe portion 54E and the like protrude in the front side projecting portion 62d and forms a right-angled corner on the upper left side in a front view. there is

In the front side rib portion 141 , the upper side protrusion portion that protrudes upward from the receiving surface 125 and is formed over the entire formation range of the receiving surface 125 in the left-right direction serves as the front side horizontal protrusion portion 146 . The front lateral rib portion 146 is a linear plate-like portion extending in the left-right direction with the front-rear direction as the plate thickness direction. In the front rib portion 141 , the left side projection portion that protrudes leftward from the left side surface 62 f and is formed over the entire formation range of the left side surface 62 f in the vertical direction serves as a front vertical projection portion 147 . The front vertical rib portion 147 is a linear plate-like portion along the vertical direction with the front-rear direction as the plate thickness direction.

An inner wall surface 146a of the front horizontal rib portion 146 rises upward with respect to the receiving surface 125, and an inner wall surface 147a of the front vertical rib portion 147 rises leftward with respect to the left side surface 62f. Therefore, on the front side of the curved surface portion 62e, a plate-like portion forming a right-angled corner formed by the front side horizontal rib portion 146 and the front side vertical rib portion 147 protrudes.

The right rib portion 142 is a ridge portion forming a barrier-like portion on the right side of the receiving surface 125 . The right rib portion 142 is positioned substantially in the center of the front projecting portion 62 d in the left-right direction, is formed linearly along the front-rear direction, and is wider than the front rib portion 141 .

The right rib portion 142 has an inner wall surface 142a rising upward with respect to the receiving surface 125 and a horizontal upper surface 142b. The front side of the right rib portion 142 is connected to the right end portion of the front lateral rib portion 146 of the front rib portion 141, and the right rib portion 142 and the front lateral rib portion 146 form an "L" shape in plan view. . The upper surface 142b of the right rib portion 142 continues flush with the upper surface 146b of the front lateral rib portion 146 . Further, the rear side of the right rib portion 142 is connected to the main body wall portion 144 .

The rear wall portion 143 includes a rear wall portion 151 forming a barrier-like portion behind the receiving surface 125 and the curved surface portion 62e, and an inclined rear-side inclined ridge forming a barrier-like portion behind the left side surface 62f. and a portion 152 . The rear wall portion 143 is located behind the front rib portion 141 and formed to face the front rib portion 141 . The rear wall portion 143 protrudes leftward from the outer wall surface 115d and the left side surface 62f of the cover wall portion 115 positioned substantially at the same position in the horizontal direction over the entire vertical direction.

The rear wall portion 151 is a wall-like portion formed vertically with the front-rear direction as the plate thickness direction, and is provided between the receiving surface 125 and the left side surface 62 f and the upper bottom surface portion 117 . formed. That is, the lower side of the rear wall portion 151 is connected to the receiving surface 125 and the left side surface 62 f , and the upper side of the rear wall portion 151 is connected to the horizontal lower surface 117 c of the upper bottom surface portion 117 .

The rear inclined ridge portion 152 is a ridge portion that protrudes leftward from the left side surface 62f and is formed in an inclined shape over the entire forming range of the left side surface 62f in the vertical direction. The rear inclined ridge portion 152 is a linear plate-like portion along a predetermined inclined direction in a left side view.

The rear inclined ridge portion 152 is connected to the lower side of the leftward projecting portion of the rear wall portion 151 and is inclined forward and downward from the lower end of the rear wall portion 151 . In other words, the rear inclined ridge portion 152 is formed to form an obtuse angle together with the rear wall portion 151 when viewed from the left side, and the rear wall portion 143 is formed between the rear wall portion 151 and the rear inclined ridge when viewed from the left side. The portion 152 is formed so as to form a curved shape. In the present embodiment, the angle of inclination of the rear inclined ridge portion 152 with respect to the vertical direction is, for example, about 45°. However, the inclination angle of the rear-side inclined ridge portion 152 is not limited. The rear wall portion 143 has its lower end positioned at the lower end of the left side surface 62f and positioned at approximately the same height as the lower end of the front vertical rib portion 147.

A front wall surface 151a of the rear side wall portion 151 rises upward with respect to the receiving surface 125 and the curved surface portion 62e, and a front surface 152a of the rear inclined ridge portion 152 rises leftward with respect to the left side surface 62f.

The main body wall portion 144 is a portion formed by the lower portion of the peripheral wall portion 63 . and a rear side wall surface 157 extending downward through the . The front wall surface 156 and the rear wall surface 157 are continuous in a curved shape in plan cross-sectional view.

The body wall portion 144 rises upward from the receiving surface 125 between the right rib portion 142 and the rear wall portion 151 . Specifically, the front wall surface 156 is a vertical wall surface that faces the front side and is formed below the front overhang portion 64 , and receives it at a position behind the right end of the front lateral rib portion 146 . It rises from surface 125 . The inner side wall surface 157 is a vertical curved wall surface located on the lower inner side of the upper bottom surface portion 117 and rises from the receiving surface 125 between the left end of the front wall surface 156 and the right end of the rear wall portion 151 . .

With the configuration as described above, in the lower flow path portion 122, the flow path from the upper flow path portion 121 onto the receiving surface 125 with respect to the flow path surface for discharging and leaking water composed of the receiving surface 125, the curved surface portion 62e, and the left side surface 62f. A barrier section is provided to regulate and guide the flow of discharged leakage water that has flowed down. That is, as such a barrier portion, a front rib portion 141 having a front horizontal rib portion 146 and a front vertical rib portion 147 is provided on the front side of the receiving surface 125, the curved surface portion 62e, and the left side surface 62f. A right rib portion 142 is provided on the right side of the receiving surface 125 . A rear side wall portion 151 is provided on the rear side of the receiving surface 125 and the curved surface portion 62e, and a rear inclined ridge portion 152 is provided on the rear side of the left side surface 62f. A body wall portion 144 is provided on the right rear side of the receiving surface 125 .

As described above, in the lower flow path section 122, the barrier sections described above form a flow path extending from the receiving surface 125 to the left side surface 62f via the curved surface section 62e. In the lower channel portion 122 , a barrier portion surrounding the periphery of the receiving surface 125 forms a pool portion in which drained and leaked water flowing down from the upper channel portion 121 is temporarily stored on the receiving surface 125 . In the lower flow path portion 122, the lower end portion of the left side surface 62f, that is, the space between the lower end portion of the front vertical ridge portion 147 and the lower end portion of the rear inclined ridge portion 152 is a drain for discharging leaked water. An exit portion 158 is formed.

The water leakage drainage structure of this embodiment as described above has the following configuration. That is, the upper flow path portion 121 is formed so as to allow leaked water to flow down from one side in a predetermined horizontal direction. In the present embodiment, the predetermined horizontal direction is the front-rear direction, and the upper flow path portion 121 is formed so as to allow discharged leak water to flow down from the front side, which is one side in the front-rear direction.

The drainage channel portion 102 has a pair of barrier portions that are provided facing each other so as to position the drooping portion 130 between them in the front-rear direction, and guide the water that has flowed down to the receiving surface 125 . In this embodiment, the pair of barriers are the front lateral rib 146 and the rear wall 151 .

In particular, in the present embodiment, the drooping portion 130 is positioned in the central portion between the front lateral rib portion 146 and the rear wall portion 151 in the front-rear direction. Specifically, as shown in FIG. 20, the dimension D1 in the front-rear direction between the inner wall surface 146a of the front lateral rib portion 146 and the front surface 131 of the hanging portion 130, and the front wall surfaces of the front surface 131 and the rear wall portion 151 151a in the front-rear direction is substantially the same size.

Also, the dimensions D1 and D2 are preferably 3 mm or more in view of the size of the water droplet. That is, with regard to discharge water leakage, since the maximum size of water droplets is about 3 mm in relation to surface tension, etc., a preferable configuration for obtaining a good drainage effect is to have dimensions D1 and D2 of 3 mm or more. is ensured. Therefore, the dimensions D1 and D2 are set to be about 3 to 5 mm, for example.

A description will be given of the flow of water leaking from the sealing portion by the packing 76 in the flow adjustment/flow path switching valve device 50 having the drainage structure as described above. Leakage from the sealing portion of the packing 76 first flows into the upper space 85 in the casing 51, which is the space above the packing 76 (see arrow F1 in FIG. 16). The leaked water accumulated in the upper space 85 is discharged from the drain port 101 (see arrow F2 in FIG. 16).

The drained water discharged from the drain port 101 is guided forward through the gutter-shaped upper channel portion 121 (see arrow F3 in FIG. 16). Here, since the inner peripheral wall portion 116 forming the upper flow path portion 121 is formed with the inclined surface 116a, smooth drainage from the drain port 101 into the upper flow path portion 121 can be obtained. 16 is a partial cross-sectional view taken along line B-B' in FIG.

Leakage water discharged from the upper flow path portion 121 flows down from the front opening 124 along the drooping portion 130 onto the receiving surface 125 (see arrow F4 in FIG. 15). Here, in the upper flow path portion 121 , discharged water leaking from the upper bottom surface portion 117 flows over the bottom surface 117 a and the front inclined surface 117 b of the upper bottom surface portion 117 , travels along the front surface 131 of the drooping portion 130 , and reaches the receiving surface 125 . It flows upwards (see FIG. 21, arrow G1). As a result, smooth drainage from the upper channel portion 121 onto the receiving surface 125 can be obtained.

The drained water that has fallen onto the receiving surface 125 is accumulated on the receiving surface 125 by the barrier portion around the receiving surface 125, and is discharged from the left side, which is the open side (see arrow F5 in FIG. 15). The discharged water discharged from the left side of the receiving surface 125 is guided by the front rib portion 141 and the rear side wall portion 143 and is discharged downward from the discharge port portion 158 along the curved surface portion 62e and the left side surface 62f. (See FIG. 15, arrow F6). The leaked water discharged from the discharge port 158 flows down onto the case cover 5 through other parts of the casing 51 and the case member for setting the flow adjustment/flow path switching valve device 50 .

On the left side surface 62f, the passage width of the discharged water leakage is narrowed by the inclination of the rear side inclined ridge portion 152, so that the discharged water leakage along the left side surface 62f is narrowed with respect to the full width in the front-rear direction. is discharged from the part of In other words, on the left side surface 62f, the width of the flow path is gradually narrowed from the side of the receiving surface 125, which is the upper side, to the lower side by the front vertical ridge portion 147 and the rear inclined ridge portion 152, and the air is discharged to a predetermined portion. Leakage is guided and drained.

According to the flow adjustment/flow path switching valve device 50 and the sanitary washing device 2 including the same according to the present embodiment described above, leakage water discharged from the drain port 101 provided in the casing 51 contacts other parts. Therefore, it is possible to prevent water leakage from the casing 51 from adversely affecting other components.

The flow adjustment/flow path switching valve device 50 according to the present embodiment is of a so-called vertical type in which the axial direction of the motor shaft 55b of the motor 55 arranged on the upper side of the casing 51 is the vertical direction. and a drainage channel portion 102 for guiding the leaked water discharged from the drainage port 101 to a predetermined position. It has a cover wall 115 covering the mouth 101 from the left side.

According to such a configuration, it is possible to prevent the leaked water discharged from the drain port 101 from coming into contact with other parts. In the present embodiment, the electrolytic bath 23 is arranged immediately to the left of the flow adjustment/flow path switching valve device 50, and the electrolytic bath 23 is placed between the case body main body portion 91 and the casing 51 of the electrolytic bath 23. The wiring 23a passes through. In particular, the wiring 23a is positioned within a height range corresponding to the upper portion of the casing 51 where the drain port 101 is open, and in the casing 51, the entire height range where the wiring 23a exists is covered by the covering wall portion. 115 covered.

With such a configuration, it is possible to prevent the wiring 23a of the electrolytic cell 23 from entering the drain port 101, and by extension, the wiring 23a from coming into contact with the leaked water discharged from the flow adjustment/flow path switching valve device 50. can. As a result, it is possible to prevent problems caused by discharged water leaking through the wiring 23a and reaching other devices/equipment. Then, the drain flow path portion 102 can guide the drained water discharged from the drain port 101 to a target position.

Further, the flow adjustment/flow path switching valve device 50 according to the present embodiment includes, in the drainage flow path part 102, a gutter-shaped upper flow path part 121 including the covering wall part 115 and a discharge flow flowing down from the upper flow path part 121. and a lower channel portion 122 including a receiving surface 125 for receiving leakage water.

According to such a configuration, the flow of discharged water leakage in the drainage channel portion 102 can be divided into a plurality of stages of channels, and the discharged water leakage occurs in the parts existing around the flow adjustment/channel switching valve device 50. This can be effectively prevented.

Specifically, in the present embodiment, as the flow of discharged and leaked water in the drainage channel portion 102, the flow of the first stage flowing down from the front side of the gutter-shaped upper channel portion 121 (FIG. 16, arrow F3, FIG. 15, arrow F4), a second-stage horizontal flow on the receiving surface 125 (see arrow F5 in FIG. 15), and a third-stage flow from the left side of the receiving surface 125 along the curved surface portion 62e and the left side surface 62f ( FIG. 15, arrow F6)) and a three-step flow are obtained. As a result, it is possible to effectively suppress contact of the discharged water leakage with other components.

As described above, according to the water leakage drainage structure according to the present embodiment, in a configuration in which the position of water leakage from the packing 76 is higher than in the conventional structure due to the vertical installation type, the flow adjustment/flow path switching valve device 50 It is possible to drop and drain the leaked water to the bottom without watering the surrounding parts.

In addition, in the flow adjustment/flow path switching valve device 50 according to the present embodiment, the upper flow path part 121 has a drooping part 130 having a sharp downward shape as a part for causing discharged leak water to flow down onto the receiving surface 125. have.

According to such a configuration, it is possible to improve the ability to drain the leaked water that flows down from the upper flow path portion 121 , and it is possible to prevent water from accumulating in the upper flow path portion 121 . That is, the tapered shape of the drooping portion 130 can reduce the contact area with water, so that water droplets are less likely to remain on the drooping portion 130, and water can easily flow (easily fall). As a result, the discharged water leakage that has flowed through the upper flow path portion 121 can be completely drained to the target position without leaving any residue.

In addition, in the flow adjustment/flow path switching valve device 50 according to the present embodiment, the upper flow path section 121 is configured to allow discharged leak water to flow down from the front side, and the lower flow path section 122 is configured to flow downward from the drooping section 130. It has a front rib portion 141 provided at a position on the front side and a rear side wall portion 143 provided at a position on the rear side of the drooping portion 130 .

According to such a configuration, it is possible to regulate the flow range on both front and rear sides of the discharged water leakage on the receiving surface 125 that has flowed down from the drooping portion 130, and it is possible to reliably guide the discharged water leakage to the target position. .

In this embodiment, for example, when discharged water leaks forward from the receiving surface 125, the discharged water hits the tube 161 attached to the drain pipe portion 54F and the tube 162 attached to the drain pipe portion 54E. A problem arises in that water reaches other parts along the tube (see FIGS. 12 and 13). In this respect, since the front side rib portion 141 is provided on the front side of the receiving surface 125, it is possible to prevent the discharge leakage water from flowing out and the tubes 161 and 162 to be prevented from being splashed with water. Further, since the rear wall portion 143 is provided on the rear side of the receiving surface 125, it is possible to prevent water from splashing on other components positioned rearward of the rear wall portion 143. FIG.

Further, as described above, the longitudinal dimensions D1 and D2 (see FIG. 20) between the drooping portion 130 and the front lateral rib portion 146 and the rear wall portion 151 are ensured to be 3 mm or more. is preferred. According to such a configuration, it is possible to obtain a good drainage action for the flow of discharged leaked water from the upper flow path portion 121 to the lower flow path portion 122 in relation to the size of water droplets. In addition, since sufficient sizes are ensured for the longitudinal dimensions D1 and D2 between the drooping portion 130 and the front lateral rib portion 146 and the rear wall portion 151, respectively, the discharged water leakage is prevented from occurring at the front lateral rib portion 146. Alternatively, it is possible to prevent it from getting over the rear wall portion 151 and hitting other parts.

Further, in the flow adjustment/flow path switching valve device 50 according to the present embodiment, the drain port 101 is formed such that the circumferential angle θ1 in plan view is within the range of about 60 to 80°, for example. (See FIG. 18). According to such a configuration, a sufficient opening area can be obtained in the drainage portion from the upper space 85 to the drainage port 101 where gravity cannot be used, and smooth drainage can be realized.

As described above, in the upper part of the leakage drainage structure according to the present embodiment, the coating wall portion 115 is attached to the wiring 23a of the electrolytic cell 23 located on the left side of the flow adjustment/flow path switching valve device 50. to guard the drainage channel and allow the discharged water to flow forward, and in the lower part where the wiring 23a does not exist, the discharged water is dropped from the left side of the casing 51 in order to prevent the discharged water from leaking to other parts. flowing. In this manner, in the water leakage drainage structure according to the present embodiment, different flows are formed in the upper and lower stages, thereby preventing the peripheral parts from being exposed to the discharged water leakage.

The sanitary washing device and the flow path switching valve device according to the present invention, which have been described using the embodiments as described above, are not limited to the above-described embodiments, and various aspects can be adopted within the scope of the present invention. be able to.

In the above-described embodiment, the packing 76 as a sealing member provided between the shaft support member 56 constituting the movable portion and the casing 51 side is a Y-packing. For example, other sealing members such as O-rings having a circular or oval cross section may be used.

In the above-described embodiment, packing 76 as a sealing member is provided around shaft supporting member 56 among the members constituting the movable portion that operates to switch the flow path. It is not limited. Therefore, a configuration in which a sealing member is provided between another member (for example, the movable disk 53) that constitutes the movable portion and the configuration on the casing 51 side may be employed.

In the above-described embodiment, the drooping portion 130 has a sharp shape that tapers downward due to the front surface 131 and the rear inclined surface 133, but the shape for forming the sharp shape is not particularly limited. do not have. Therefore, the sharp shape of the drooping portion 130 may be formed, for example, by forming an inclined surface on the front side or by forming an inclined surface on both front and rear sides. However, from the viewpoint of ensuring a sufficient dimension between the drooping portion 130 and the rear wall portion 151 in order to obtain good drainage performance, the rear side of the drooping portion 130 should be the rear inclined surface as in the above-described embodiment. A structure with an inclined surface such as 133 is preferable.

2 sanitary washing device 50 flow adjustment/flow path switching valve device (flow path switching valve device)
51 casing 53 movable disk (movable valve element)
55 Motor 56 Axial support member 61 Housing body portion 62 Drainage channel forming portion 63 Peripheral wall portion 74 Sleeve member 76 Packing (seal member)
101 drain port 102 drain channel portion 115 covering wall portion (covering portion)
121 upper channel portion (first channel portion)
122 lower channel portion (second channel portion)
124 Front opening 125 Receiving surface 130 Hanging part 131 Front surface 133 Rear inclined surface 141 Front rib part 142 Right rib part 143 Rear wall part 144 Main body wall part 146 Front lateral rib part 147 Front vertical rib part 151 Rear wall part 152 Rear Side inclined ridge

Claims (2)

A channel switching valve device provided on the upstream side of a plurality of water discharging parts for discharging water and switching a channel for supplying water to a channel to each water discharging part,
a movable part including a movable valve body that operates to switch the flow path;
a casing that houses the movable part;
a sealing member provided between the movable part and the casing side,
The casing has a drain port for discharging water leaking from the sealing portion of the sealing member to the outside of the casing, and a drain channel portion for guiding the leaked water discharged from the drain port to a predetermined position. ,
The drainage flow path part includes a first flow path part having a covering part that covers the drain port from at least one side and allowing leaked water discharged from the drain port to flow down; a second channel portion having a receiving surface for receiving and guiding water leaked from the receiving surface to the downstream side of the drainage channel portion;
The first flow path part has a drooping part for causing leaked water discharged from the drain port to flow down to the receiving surface,
The first flow path part is formed so as to allow leakage water to flow down from one side in a predetermined horizontal direction,
The drainage flow path section has a pair of barrier sections that are provided facing each other so that the drooping section is positioned between them in the predetermined horizontal direction, and guides the water that has flowed down to the receiving surface.
A channel switching valve device characterized by: a plurality of water discharge sections for discharging water; and a flow path switching valve device provided upstream of the plurality of water discharge sections for switching a flow path for supplying water to the flow path to each water discharge section. A sanitary washing device,
The flow path switching valve device is
a movable part including a movable valve body that operates to switch the flow path;
a casing that houses the movable part;
a sealing member provided between the movable part and the casing side,
The casing has a drain port for discharging water leaking from the sealing portion of the sealing member to the outside of the casing, and a drain channel portion for guiding the leaked water discharged from the drain port to a predetermined position. ,
The drainage flow path part includes a first flow path part having a covering part that covers the drain port from at least one side and allowing leaked water discharged from the drain port to flow down; a second channel portion having a receiving surface for receiving and guiding water leaked from the receiving surface to the downstream side of the drainage channel portion;
The first flow path part has a drooping part for causing leaked water discharged from the drain port to flow down to the receiving surface,
The first flow path part is formed so as to allow leakage water to flow down from one side in a predetermined horizontal direction,
The drainage flow path section has a pair of barrier sections that are provided facing each other so that the drooping section is positioned between them in the predetermined horizontal direction, and guides the water that has flowed down to the receiving surface.
A sanitary washing device characterized by:

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