JP2008081948A - Sanitary washing device and toilet apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary washing device and a toilet apparatus, which enable water to be discharged from a low tank, a toilet bowl, etc. in synchronization with the drainage of the sanitary washing device. <P>SOLUTION: The sanitary washing device is annexed to a toilet in which the water stored in a tank flows into the bowl of a water closet via a drain valve. Characteristically, the sanitary washing device comprises: a water ejection nozzle for emitting a jet of water from a water ejection port; a water channel which guides the water, supplied from a water supply source, to the water ejection nozzle; a weep valve which is connected midway through the water channel, and which enables the water in the water channel to be at least partially discharged into the bowl; and a control portion which enables the synchronous performance of the drainage of the water channel by the opening/closing of the weep valve, and the discharge of the water from the tank by the opening of the drain valve. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sanitary washing device and a toilet device, and more specifically, to a sanitary washing device and a toilet device that wash, for example, a “butt” of a user sitting on a Western-style seated toilet with water.

  The sanitary washing device accommodates a water discharge nozzle for jetting washing water so that it can be moved forward and backward, and can be installed on a sitting toilet to wash a user's “buttock” with warm water. Since such a sanitary washing apparatus has a water channel system in the interior thereof, it is necessary to drain water from the water supply section of the sanitary washing apparatus in order to prevent maintenance and inspection and freezing in cold regions (for example, Patent Document 1). .

However, for example, in order to prevent freezing in a cold region, it is necessary to drain not only water from the sanitary washing apparatus but also water from a low tank.
On the other hand, in the case of a so-called vacuum type toilet installed in an aircraft or the like, it is necessary to open an on-off valve attached to the bottom of the bowl in order to drain the toilet. Therefore, for example, when draining the sanitary washing device for maintenance inspection, etc., it is necessary to drain the toilet so that the water discharged from the sanitary washing device does not overflow into the toilet bowl. is there. Similarly, when draining the sanitary washing device to prevent freezing, it is necessary to drain the toilet in order to prevent freezing of the water accumulated in the bowl of the vacuum toilet.
JP-A-4-64631

  The present invention provides a sanitary washing device and a toilet device that can also execute drainage of a low tank, a toilet bowl and the like in conjunction with draining of the sanitary washing device.

  According to one aspect of the present invention, there is provided a sanitary washing apparatus attached to a toilet for flowing water stored in a tank to a bowl of a flush toilet through a drain valve, a water discharge nozzle for jetting water from a water discharge port, By opening a water channel that guides water supplied from a water source to the water discharge nozzle, a drain valve that is connected to the water channel and allows at least part of the water in the water channel to be drained to the bowl, and opens and closes the water drain valve There is provided a sanitary washing apparatus comprising: a control unit capable of executing the drainage of the water channel and the drainage of the tank by opening the drain valve in conjunction with each other.

  According to another aspect of the present invention, there is provided a sanitary washing apparatus attached to a toilet provided with an open / close valve between a decompressed drainage channel and a toilet bowl, the water spouting jetting water from a water spout A nozzle, a water channel that guides water supplied from a water supply source to the water discharge nozzle, a water drain valve that is connected to the water channel and allows at least a part of water in the water channel to be drained into the bowl, and the water drain valve. A controller that can execute the drainage of the water channel by opening and closing, and the drainage of the toilet bowl from the bowl to the drainage channel by opening the on-off valve. A sanitary washing device is provided.

  Further, according to another aspect of the present invention, the toilet is configured to supply water stored in the tank to the bowl of the flush toilet through the drain valve, the water discharge nozzle that injects water from the water discharge port, and the water supply source. A water channel that guides water to the water discharge nozzle, a water drain valve that is connected in the middle of the water channel and that allows at least part of the water in the water channel to be drained to the bowl, and drains the water channel by opening and closing the water drain valve And a control unit that can execute the drainage of the tank by opening the drain valve in conjunction with each other.

  Moreover, according to the other one aspect | mode of this invention, the toilet provided with the on-off valve between the pressure-reduced drainage channel and the toilet bowl, the water discharge nozzle which injects water from a water discharge port, and the water supply source supply. A water channel that guides water to the water discharge nozzle, a water drain valve that is connected in the middle of the water channel and that allows at least part of the water in the water channel to be drained to the bowl, and drains the water channel by opening and closing the water drain valve And a control unit that can execute the drainage from the bowl of the toilet bowl to the drainage channel by opening the on-off valve.

  ADVANTAGE OF THE INVENTION According to this invention, the sanitary washing apparatus and toilet apparatus which can also perform drainage, such as a low tank and a toilet bowl, in conjunction with draining of a sanitary washing apparatus can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram of a toilet apparatus according to a first embodiment of the present invention.
FIG. 2 is a schematic perspective view illustrating the toilet device of this embodiment.
FIG. 3 is a partial cross-sectional schematic view of the toilet device.
This toilet device includes a flush toilet 900 and a sanitary washing device 10 installed in the flush toilet. The flush toilet 900 includes a tank 910 capable of storing cleaning water, a toilet 950 having a bowl 930, and a drain valve 920 that allows the cleaning water stored in the tank 910 to flow to the bowl 930 through a drainage channel 955. The drain valve 920 can be automatically opened by the drain valve driving unit 960. The drain valve 920 may be opened manually by the user operating the handle 935 or the like. The flush toilet 900 shown in FIGS. 2 and 3 is a so-called “low tank type”, and the drain valve 920 is urged vertically upward by the buoyancy of the float 922. Accordingly, when the drain valve 920 is opened by the drain valve driving unit 960 or the handle 935, the drain valve 920 is kept open by the buoyancy of the float 922 until the water in the tank 910 drops to a predetermined water level. . On the other hand, a ball tap 915 is provided in the tank 910, and water supplied from the branch 22 is supplied until the water level in the tank 910 reaches a predetermined level.

  However, the “drainage valve” in the present specification is not limited to a toilet flushing valve that allows filth to flow after being used for stool, and is provided separately from the toilet flushing drain valve. It also includes drain valves that discharge.

  2 and 3, the “low tank type” tank is shown as the tank 910, but the present invention is not limited to this, and for example, a “high tank type” cleaning tank may be used. .

  On the other hand, the sanitary washing device 10 installed on the toilet 950 includes a main body 12 and a toilet seat 14 and a toilet lid 16 that are pivotally supported to the main body 12 so as to be freely opened and closed. However, the toilet lid 16 may not be provided. From the main body 12, a water discharge nozzle extends into the bowl of the toilet 950 in response to a user's switch operation, etc., and water is sprayed from a water discharge port provided near the tip of the toilet 950, so Can be washed. In the present specification, “water” includes not only cold water but also heated hot water.

  A faucet 20 connected to a water supply source such as a water supply or a water storage tank is provided on a wall of a toilet space where the toilet device is installed, and a branch 22 is provided at the end of the faucet 20 to provide a tank 910 for a flush toilet. Water is supplied to the sanitary washing device 10. The sanitary washing device 10 includes a water channel 110 that guides water supplied from the branch 22 to the nozzle unit 400. An electromagnetic valve 120 is provided on the upstream side of the water channel 110. The electromagnetic valve 120 is, for example, a normally closed electromagnetic valve that is in a closed state when not energized, and controls the supply of water based on a command from the control unit 500. A heat exchange unit 200 is provided downstream of the electromagnetic valve 120. The heat exchange unit 200 heats the supplied water with a heater to obtain predetermined hot water. A nozzle unit 400 having a water discharge nozzle is provided downstream of the heat exchange unit 200.

  A drain valve 100 is provided between the heat exchange unit 200 and the nozzle unit 400. The drain valve 100 opens based on an instruction from the control unit 500, and discharges water remaining inside the water channel 110 and the heat exchange unit 200 on the way to the outside. The water released from the drain valve 100 is discharged to the bowl 930 of the toilet bowl. In addition, the connection position of the drain valve 100 in this embodiment is not limited to the specific example shown in FIG. 1, and may be connected anywhere as long as it is downstream of the electromagnetic valve 120. In the case of a sanitary washing apparatus that drains water from the nozzle unit 400, a water flow control valve that controls water flow of the nozzle unit may be used instead of the water drain valve 100.

Further, the sanitary washing device 10 and the drain valve driving unit 960 are connected by a connection cord 962, and the drain valve driving unit 960 can be driven by a signal or electric power from the control unit 500 to open the drain valve 920. ing.
The operation of the sanitary washing device 10 described above can be controlled by operating the operation unit 700 such as a switch provided on the main body unit or a remote controller.

Next, the water draining operation executed in this toilet device will be described.
FIG. 4 is a flowchart illustrating the draining operation of the toilet apparatus according to this embodiment.
That is, the control unit 500 of the sanitary washing device 10 first determines whether or not there is a drain trigger (step S110). The drain trigger is a command to start the drain operation, and can be input by operating the operation unit 700 by the user, for example. At this time, the user desirably closes the stop cock 20 in advance to shut off the water supply to the sanitary washing device 10 and the flush toilet 900.

  When the drain trigger is input (step S110: yes), the control unit 500 prohibits the reception of the operation switch (step S120). That is, even if the user operates the operation unit 700 to start cleaning “wet”, for example, the operation is not executed. However, for example, when a command for stopping the water draining operation is input, this is accepted and the water draining operation is stopped as appropriate. In step S120, for example, when the user operates a switch such as a remote controller to wash the “wet”, an alarm such as “beep” is sounded, or a water draining operation is being performed by light or the like. You may alert | report.

  And the control part 500 opens the drain valve 100 (step S130). At this time, the solenoid valve 120 is typically in a closed state. Then, the water remaining on the downstream side of the electromagnetic valve 120 of the water channel 110 of the sanitary washing device 10 is discharged from the drain valve 100 to the bowl 930 of the toilet bowl. The toilet 950 is, for example, a siphon type flush toilet, and water exceeding the maximum water level of the trap 932 is automatically discharged to the drain pipe. Therefore, water does not overflow from the bowl 930 to the outside due to draining of the sanitary washing device 10.

  For example, when a hot water storage tank is provided in the heat exchange unit 200, about 700 milliliters of water may remain. According to the present embodiment, such residual water can be reliably and easily discharged through the drain valve 100. In addition, this invention is not limited to what used the hot water storage tank, The thing which has what is called an instantaneous heating type heat exchanger is also included.

  Next, it is determined whether or not draining is completed (step S140). Specifically, for example, the controller 500 determines whether or not a predetermined time has elapsed since the drain valve 100 was opened. Alternatively, the determination may be made based on whether or not a predetermined time has elapsed after the drain trigger (see step S110) is input. Alternatively, detection means such as a sensor is provided on the drain valve 100 or downstream thereof, and it is determined whether or not a predetermined time has elapsed since the water discharged from the drain valve 100 is no longer detected by the detection means. Good. On the other hand, the weight of a part of the water channel 110, the heat exchange unit 200, or the like may be detected, and it may be determined whether or not a predetermined time has elapsed since the weight became a predetermined value or less. Alternatively, the water level inside the heat exchange unit 200 may be detected by a float switch, a sensor, or the like, and the determination may be made based on whether or not a predetermined time has elapsed since the water level has fallen below the predetermined water level.

  When it is determined that drainage is completed by such a method (step S140: yes), the controller 500 closes the drainage valve 100 (step S150). And the control part 500 transmits the signal for opening the drain valve 920 of the flush toilet 900 to the drain valve drive part 960 (step S160). Then, the drain valve 920 of the flush toilet 900 is opened, and the water stored in the tank 910 is discharged to the bowl 930. At this time, as described above, if the stop cock 20 is closed in advance by the user, the water is not supplied to the tank 910. That is, the water in the tank 910 can be drained.

  At this time, if the water supply to the tank 910 is cut off, the supply of sealing water that is branched from the ball tap 915 and is supplied to the bowl 930 from the overflow pipe 916 through the drainage channel 955 is also cut off. The Therefore, after most of the water in the trap 932 is swept into the drain pipe by the siphon effect, the sealing water is not supplied, and the trap 932 can form a state in which there is almost no water. That is, by lowering the water level of the trap 932 of the toilet 950, it is possible to prevent trouble due to freezing.

  After draining the tank 910 and the trap 932 of the flush toilet 900 as described above, the acceptance of the operation switch is again permitted (step S170). Thereafter, when the user opens the stop cock 20 and presses a predetermined switch of the operation unit 700 such as a remote controller or shuts off the power supply of the sanitary washing device 10, the water supply is started. That is, the electromagnetic valve 120 of the sanitary washing device 10 is opened, and water is introduced into the heat exchange unit 200. In addition, the tank 910 of the flush toilet is supplied with water to a predetermined water level via the ball tap 915, and the trap 932 is also filled with sealed water via the overflow pipe 916.

  However, in the case of a toilet in which the trap 932 is not filled with the sealing water from the ball tap 915 through the overflow pipe 916, an operation for filling the sealing water is required. In that case, for example, the controller 500 may be used to open the drain valve 920 after a predetermined time has elapsed since the start of water supply. Moreover, you may divert the determination methods mentioned above, such as control by weight, not only whether predetermined time passed since the water supply start.

  As described above, according to the present embodiment, it is possible to automatically execute draining of the tank 910 and the trap 932 of the flush toilet in conjunction with draining of the sanitary washing device 10. That is, if the user has to drain the sanitary washing apparatus 10 and the flush toilet 900, respectively, the draining work is troublesome, and there may be cases where mistakes in work and forgetting work occur. On the other hand, according to the present embodiment, the flush toilet 900 can be drained in conjunction with the sanitary washing device 10. As a result, it is possible to reliably and easily execute drainage for preventing freezing in a cold region, and to realize an easy-to-use toilet apparatus.

Next, a second embodiment of the present invention will be described.
FIG. 5 is a block diagram of the toilet apparatus according to the present embodiment.
FIG. 6 is a flowchart illustrating the operation of draining the toilet apparatus according to this embodiment. In these drawings, the same elements as those described above with reference to FIGS.

  In this embodiment, the sanitary washing device 10 is provided with a supply detection unit 550 that detects the supply state of water from the water supply source. The supply detection unit 550 can be a water pressure sensor provided in the water channel 110, for example. By providing the supply detection unit 550, the presence or absence of water supply to the water channel 110, that is, the open / close state of the stop cock 20 can be checked.

  The control unit 500 performs a water draining operation based on the signal from the supply detection unit 550. That is, when a water drain trigger occurs (step S110: yes), the control unit 500 determines whether water supply from the stop cock 20 is stopped based on a signal from the supply detection unit 550 (step S180). ). If it is determined that the water supply has not stopped (step S180: no), the process returns to step S110. At this time, for example, an alarm such as “beep” may be sounded, or the user may be informed that the stop cock 20 is not closed by light or the like.

  On the other hand, when it is determined that the water supply is stopped (step S180: yes), the processes after step S120 are sequentially executed. These processes can be the same as those described above with reference to FIGS.

  In order to drain water from the flush toilet tank 910 or the like in conjunction with the sanitary washing device 10, it is necessary to close the stop cock 20. On the other hand, according to the present embodiment, the supply detection unit 550 detects whether or not the stop cock 20 is closed, so that the user can issue a water drain command without closing the stop cock 20. In the case of taking out, it is possible to prevent the water draining operation from being executed. That is, when the user forgets to close the stop cock 20, it is possible to notify that the stop cock 20 is not closed without performing the draining operation.

  Further, after step S170, when the user presses a predetermined switch of the operation unit 700 such as a remote controller or turns off the power supply of the sanitary washing device 10 and instructs the start of water supply, the supply detection is also performed. The opening / closing state of the stop cock 20 can be determined by the part 550. That is, when the stop cock 20 is closed when the start of water supply is instructed, the user can be notified by an alarm such as sound or light.

  On the other hand, in this embodiment, when water supply is not stopped in step S180 (no), step S120 and subsequent steps are executed while notifying the user with sound or light without returning to step S110. Also good. In this way, for example, when it is desired to drain water for maintenance and inspection of the sanitary washing device 10, it is possible to cause only the sanitary washing device 10 to drain water. On the other hand, if the water supply is not stopped (no), the process does not return to step S110, but informs the user by sound or light, and waits at step S180 until the water supply is stopped. You may make it perform.

FIG. 7 is a flowchart of the water draining operation according to the modified example of the present embodiment.
That is, in this modified example, the solenoid valve 120 is opened together with the drain valve 100 in step S190. At this time, since the stop cock 20 is closed, water remaining in the water channel from the stop cock 20 to the solenoid valve 120 can be discharged from the drain valve 100.
And if draining is completed (step S140: yes), the solenoid valve 120 will also be closed with the drain valve 100 (step S200). In this way, it becomes possible to more reliably execute the drainage of the sanitary washing device 10 and the pipes leading to it.

  In addition, the opening / closing timings of the drain valve 100 and the solenoid valve 120 in this modification are not necessarily the same. That is, as long as the water on the primary side of the solenoid valve 120 can be drained, the opening / closing timing can be set as appropriate.

Next, a third embodiment of the present invention will be described.
FIG. 8 is a block diagram of the toilet apparatus according to the present embodiment.
FIG. 9 is a schematic perspective view illustrating the toilet device of this embodiment.
FIG. 10 is a schematic partial sectional view of the toilet apparatus.
Also in these drawings, the same elements as those described above with reference to FIGS. 1 to 7 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The toilet device according to the present embodiment includes a vacuum toilet 900 and a sanitary washing device 10 installed in the vacuum toilet. The vacuum toilet 900 is installed in an aircraft, for example. In other words, an opening / closing valve 940 is provided at the bottom of the bowl 930 of the toilet 950 so that it can be freely opened and closed with the decompressed drainage channel 970. When the on-off valve 940 is closed, the airtightness and liquid tightness are substantially maintained. On the other hand, when the on-off valve 940 is opened, water in the bowl 930 is sucked and discharged to the drainage passage 970. Further, when opening the on-off valve 940, a predetermined amount of water may be allowed to flow into the bowl 930.

  And in this embodiment, the signal which opens and closes the on-off valve 940 is output from the control part 500 of the sanitary washing apparatus 10.

  FIG. 11 is a flowchart of the water draining operation performed in the toilet apparatus of the present embodiment. Also in this figure, the same elements as those described above with reference to FIGS. 1 to 10 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, for example, after the series of processing of Steps S110 to S150 is executed with the electromagnetic valve 120 closed, the open / close valve 940 of the vacuum toilet is opened and closed (Step S210). As described above, in the case of a vacuum toilet, liquid tightness is substantially maintained when the on-off valve 940 is closed, so that water discharged to the bowl 930 by draining the sanitary washing device 10 is accumulated in the bowl 930. It will be. Therefore, after draining the sanitary washing device 10, the open / close valve 940 of the vacuum toilet is opened, and the water accumulated in the bowl 930 is discharged to the drainage channel 970. Thereafter, the on-off valve 940 is closed. In this way, it is possible to prevent a problem that the water accumulated in the bowl 930 by draining the sanitary washing device 10 overflows or freezes out of the bowl 930.

  In the present embodiment, the opening / closing timing of the on-off valve 940 is not limited to the specific example shown in FIG. For example, the timing for opening the on-off valve 940 may be earlier, or for example, the timing for opening the on-off valve 940 may be provided a plurality of times.

  As described above, also in this embodiment, drainage of the water discharged to the bowl 930 of the vacuum toilet can be automatically executed in conjunction with draining of the sanitary washing device 10. Also in this case, if the user has to drain the sanitary washing device 10 and drain the vacuum toilet 900, the draining operation is troublesome, and mistakes in work and forgetting of work occur. In some cases. On the other hand, according to this embodiment, drainage of the vacuum toilet 900 can be executed in conjunction with the sanitary washing device 10. As a result, it is possible to reliably and easily execute drainage for preventing freezing in a cold region, and to realize an easy-to-use toilet apparatus.

Next, a fourth embodiment of the present invention will be described.
FIG. 12 is a block diagram of the toilet apparatus according to the present embodiment.
FIG. 13 is a flowchart illustrating the operation of draining the toilet apparatus according to this embodiment.
Also in these drawings, the same elements as those described above with reference to FIGS. 1 to 12 are denoted by the same reference numerals, and detailed description thereof is omitted.

  Also in the present embodiment, as in the second embodiment, the sanitary washing device 10 is provided with a supply detection unit 550 that detects the supply state of water from the water supply source. By providing the supply detection unit 550, the presence or absence of water supply to the water channel 110, that is, the open / close state of the stop cock 20 can be checked.

The operation will be described. Also in the present embodiment, the electromagnetic valve 120 is opened together with the drain valve 100 in step S190 in the same manner as described above with reference to FIG. At this time, since the stop cock 20 is closed, water remaining in the water channel from the stop cock 20 to the solenoid valve 120 can be discharged from the drain valve 100.
And if draining is completed (step S140: yes), the solenoid valve 120 will also be closed with the drain valve 100 (step S200). In this way, it becomes possible to more reliably execute the drainage of the sanitary washing device 10 and the pipes leading to it.

  Note that the timing of opening and closing the drain valve 100 and the electromagnetic valve 120 in this embodiment is not necessarily the same. That is, as long as the water on the primary side of the solenoid valve 120 can be drained, the opening / closing timing can be set as appropriate.

The first to fourth embodiments of the present invention have been described above.
Next, the water channel system of the sanitary washing device 10 in these embodiments will be described with specific examples.

FIG. 14 is a block diagram illustrating a water channel system of the sanitary washing device 10 of the present invention.
At the upstream side of the water channel 110 of the sanitary washing device 10, a stop cock 112 is first provided. The stop cock 112 can be manually opened and closed, and can shut off the water channel at any time, for example, when attaching and removing the sanitary washing device 10 or during maintenance and inspection. The stop cock 112 may be provided in the sanitary washing device 10 or may be provided in the vicinity of the branch 22 of the water supply source such as a water supply or a water storage tank as an element separate from the sanitary washing device 10.

  A strainer 114, an electromagnetic on-off valve 120, and a pressure regulating valve 130 are provided downstream of the stop cock 112. The strainer 114 is a filter of about 80 mesh, for example, and removes foreign matters mixed in the water supply. The electromagnetic on-off valve 120 is as described above with respect to the first to third embodiments. The pressure regulating valve 130 has a role of adjusting to a predetermined pressure range when the feed water pressure is high. Further, vacuum breakers 118 and 122 are provided as appropriate between the strainer 114 and the electromagnetic on-off valve 120 and between the electromagnetic on-off valve 120 and the pressure regulating valve 130. These vacuum breakers promote the drainage by taking in air from the outside when draining the water channel.

  A safety valve 140 is provided downstream of the pressure regulating valve 130. The safety valve 140 opens when the water channel pressure rises and drains water into the bowl of the toilet bowl. By providing the safety valve 140, it is possible to prevent water leakage from occurring inside the sanitary washing device 10 even when the pressure in the secondary water channel increases due to, for example, a failure of the pressure regulating valve 130.

  A heat exchange unit 200 is provided downstream of the safety valve 140, and a nozzle unit 400 is connected to the downstream of the vacuum breaker 210, the check valve 220, and the vacuum breaker 230 through the flow rate adjustment valve unit 300. The check valve 220 prevents the backflow of water from the nozzle unit 400 to the water channel when the pressure in the water channel decreases. The vacuum breakers 210 and 230 provided before and after that promote the drainage of the water passages on the primary side and the secondary side of the check valve 220. The flow rate adjusting valve unit 300 performs switching of water supply to the water discharge nozzle and nozzle cleaning chamber provided in the nozzle unit 400 and adjustment of the water flow. A pulsation unit that pulsates water may be provided on the secondary side of the flow rate adjustment valve unit 300.

  Then, a drain valve 100 is provided in such a water channel 110, and in conjunction with opening and closing of the drain valve 100, drainage of a flush toilet or a vacuum toilet is executed, so that the entire water of the toilet apparatus can be surely and easily. Unplug can be executed.

Next, the aspect in the case of installing the toilet apparatus of this embodiment in a cold region is demonstrated.
15 to 17 are schematic diagrams illustrating specific examples of a toilet device installed in a cold region.

  In the case of the toilet apparatus shown in FIG. 15, a heater 980 is attached to the toilet 950, and water accumulated in the trap 932 can be heated to prevent freezing. Further, the water supply pipe 21 for supplying water to the sanitary washing device 10 and the tank 910 is buried up to the underground antifreeze zone, and water can be drained by a drain plug 995. When water is drained by the drain plug 995 with the stop cock 20 (see FIGS. 1 and 5) opened, the primary side of the electromagnetic valve 120 of the sanitary washing device 10 can be drained.

  According to the first and second embodiments of the present invention, as described above with reference to FIG. 4, by draining the tank 910, the trap 932 can also be formed with little water. Accordingly, in some cases, troubles due to freezing can be avoided, but according to the specific example shown in FIG. 15, the heater 980 is used to heat the water remaining in the trap 932 and prevent freezing. Can prevent frost damage.

  In the case of the toilet apparatus shown in FIG. 16, an indoor heater 990 in the toilet space in which the toilet apparatus is installed is attached to prevent freezing. In this case, the water in the water supply pipe 21 up to the tank 910 may be frozen. For this reason, after draining the water in the sanitary washing device 10 and the tank 910, the water in the water supply pipe 21 is drained by the drain plug 995 to prevent freezing. Also in this case, drainage of the sanitary washing device 10 and the tank 910 can be performed in conjunction with each other according to the first and second embodiments of the present invention.

  In the case of the toilet apparatus shown in FIG. 17, the trap 932 is embedded in an antifreeze zone in order to prevent freezing of water accumulated in the trap 932. Also in this case, the sanitary washing device 10 and the tank 910 may be drained by the first and second embodiments, and the water supply pipe 21 may be drained by the drain plug 995.

  As described above, according to the present embodiment, it is possible to automatically execute draining of the flush toilet and draining of the vacuum toilet in conjunction with draining of the sanitary washing device 10. For example, when draining water to prevent freezing in cold regions, the user does not need to separately drain the sanitary washing device, drain the flush toilet, or drain the vacuum toilet. It is only necessary to perform draining of the cleaning device, and an easy-to-use toilet device can be provided.

  For example, when a sanitary washing device is mounted on a camper, a train, an aircraft, etc., it is often necessary to drain water when parking and parking the vehicle in a low temperature environment. According to the present embodiment, even in such a case, the user does not need to separately drain the sanitary washing device and drain the flush toilet or drain the vacuum toilet. It is only necessary to perform the removal, and an easy-to-use toilet device can be provided.

The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. For example, the characteristics of the specific examples described above with reference to FIGS. 1 to 17 can be appropriately combined within the technically possible range, and these are also included in the scope of the present invention.
For example, in the specific examples shown in FIGS. 6, 7, and 13, step S120 may be performed between step S110 and step S180. If it does in this way, it can be made easy for a user etc. that there was a drain trigger.
Further, for example, by omitting step S140 and step S150 in the specific examples shown in FIGS. 4 and 6, or omitting step S140 and step S200 in the specific example shown in FIG. It is also possible to execute the opening operations almost simultaneously in conjunction with each other. If it does in this way, since water draining operation is performed simultaneously, time required for water draining operation can be shortened. However, in this case, it is necessary to close the drain valve / solenoid valve separately.

  Further, the structure of the sanitary washing device and the content of the initialization operation are not limited to those described above with reference to FIGS. 1 to 17, and those skilled in the art similarly implement the present invention by appropriately changing the design. What can obtain the same effect is also included in the scope of the present invention as long as it includes the gist of the present invention. For example, the water discharge nozzle may advance or retreat due to water pressure, or may have a multistage structure that can slide inside one or a plurality of cylinder bodies.

  In addition, for example, the control unit that performs the above-described control is not necessarily provided inside the sanitary washing device, and may be provided in another place of the structure where the sanitary washing device is installed. Also, in the case of a toilet device equipped with a sanitary washing function unit, the control unit that performs the above-described control does not necessarily have to be provided inside the toilet device, and may be provided in another place of the structure where the toilet device is installed. Also good. Similarly, the operation unit that outputs the drain trigger does not necessarily need to be provided integrally with the sanitary washing device or the toilet device, and may be provided at another place in the structure where the sanitary washing device or the toilet device is installed. Good. In these cases, management can be facilitated because the operation unit and the control unit such as other devices provided in the same structure can be combined.

1 is a block diagram of a toilet apparatus according to a first embodiment of the present invention. It is a model perspective view which illustrates the toilet apparatus of 1st Embodiment. It is a partial cross section schematic diagram of the toilet apparatus of 1st Embodiment. It is a flowchart which illustrates the drain operation of the toilet apparatus of 1st Embodiment. It is a block diagram of the toilet apparatus concerning 2nd Embodiment of this invention. It is a flowchart which illustrates the water draining operation | movement of the toilet apparatus of 2nd Embodiment. It is a flowchart of the draining operation | movement concerning the modification of 2nd Embodiment. It is a block diagram of the toilet apparatus concerning 3rd Embodiment of this invention. It is a model perspective view which illustrates the toilet apparatus of 3rd Embodiment. It is a partial cross section schematic diagram of the toilet apparatus of 3rd Embodiment. It is a flowchart of the drain operation performed in the toilet apparatus of 3rd Embodiment. It is a block diagram of the toilet apparatus concerning 4th Embodiment of this invention. It is a flowchart of the draining operation performed in the toilet apparatus of 4th Embodiment. It is a block diagram which illustrates the channel system of sanitary washing device 10 of the present invention. It is a schematic diagram showing the specific example of the toilet apparatus installed in a cold region. It is a schematic diagram showing the specific example of the toilet apparatus installed in a cold region. It is a schematic diagram showing the specific example of the toilet apparatus installed in a cold region.

Explanation of symbols

 DESCRIPTION OF SYMBOLS 10 Sanitary washing device, 12 Body part, 14 Toilet seat, 16 Toilet lid, 20 Stop cock, 21 Water supply pipe, 22 Branch, 100 Drain valve, 110 Water channel, 112 Stop cock, 114 Strainer, 118 Vacuum breaker, 120 Solenoid valve , 130 Pressure regulating valve, 140 Safety valve, 200 Heat exchange unit, 210 Vacuum breaker, 220 Check valve, 230 Vacuum breaker, 300 Flow rate adjustment valve unit, 400 Nozzle unit, 500 Control unit, 550 Supply detection unit, 700 Operation unit, 900 Toilet, 910 tank, 915 ball tap, 916 overflow pipe, 920 drain valve, 922 float, 930 bowl, 932 trap, 935 handle, 940 open / close valve, 950 toilet, 955 drainage channel, 960 drain valve drive, 962 connection cord, 970 Drainage channel, 980 h 990 Indoor heater, 995 Drain cock

Claims (9)

A sanitary washing device attached to a toilet for flowing water stored in a tank to a bowl of a flush toilet through a drain valve,
A water discharge nozzle for injecting water from the water outlet;
A water channel for guiding water supplied from a water supply source to the water discharge nozzle;
A drain valve connected in the course of the water channel and capable of draining at least a portion of the water of the water channel into the bowl;
A controller that can execute the drainage of the water channel by opening and closing the drain valve and the drainage of the tank by opening the drain valve in conjunction with each other;
A sanitary washing device characterized by comprising: A supply detection unit for detecting the supply of water from the water supply source to the water channel;
When the water supply from the water supply source to the water channel is determined not to be stopped by the supply detection unit in draining the water channel, the control unit does not perform draining of the water channel. The sanitary washing device according to claim 1. A supply detection unit for detecting the supply of water from the water supply source to the water channel;
When the water supply from the water supply source to the water channel is determined not to be stopped by the supply detection unit in draining the water channel, the control unit notifies by at least one of sound and light. The sanitary washing device according to claim 1.   The said control part makes the said drain valve open for drainage of the said tank, after closing the said drain valve in draining of the said water channel, The any one of Claims 1-3 characterized by the above-mentioned. Sanitary washing equipment. A sanitary washing device attached to a toilet provided with an open / close valve between a decompressed drainage channel and a toilet,
A water discharge nozzle for injecting water from the water outlet;
A water channel for guiding water supplied from a water supply source to the water discharge nozzle;
A drain valve connected in the course of the water channel and capable of draining at least a portion of the water of the water channel into the bowl;
A controller that can execute the drainage of the water channel by opening and closing the drain valve and the drainage from the bowl of the toilet to the drain channel by opening the on-off valve; and
A sanitary washing device characterized by comprising:   6. The sanitary washing device according to claim 5, wherein the control unit opens the on-off valve for draining into the drainage channel after closing the drainage valve in draining the water channel. An electromagnetic valve for opening and closing the water channel;
A supply detector for detecting the supply of water from the water supply source to the water channel;
Further comprising
The control unit also opens the electromagnetic valve when the supply detection unit determines that the supply of water from the water supply source to the water channel is stopped in draining the water channel. The sanitary washing apparatus as described in any one of 1-6. Toilet that flows water stored in the tank to the bowl of the flush toilet through the drain valve,
A water discharge nozzle for injecting water from the water outlet;
A water channel for guiding water supplied from a water supply source to the water discharge nozzle;
A drain valve connected in the course of the water channel and capable of draining at least a portion of the water of the water channel into the bowl;
A controller that can execute the drainage of the water channel by opening and closing the drain valve and the drainage of the tank by opening the drain valve in conjunction with each other;
A toilet apparatus characterized by comprising: A toilet with an open / close valve between the decompressed drainage channel and the toilet;
A water discharge nozzle for injecting water from the water outlet;
A water channel for guiding water supplied from a water supply source to the water discharge nozzle;
A drain valve connected in the course of the water channel and capable of draining at least a portion of the water of the water channel into the bowl;
A controller that can execute the drainage of the water channel by opening and closing the drain valve and the drainage from the bowl of the toilet to the drain channel by opening the on-off valve; and
A toilet apparatus characterized by comprising:

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