WO2012043270A1

WO2012043270A1 - Flush toilet device

Info

Publication number: WO2012043270A1
Application number: PCT/JP2011/071191
Authority: WO
Inventors: 翼三宅; 幸之助松下; 勇介野越; 須山　博友
Original assignee: Toto株式会社
Priority date: 2010-09-29
Filing date: 2011-09-16
Publication date: 2012-04-05

Abstract

When waste is discharged with flush water after being temporarily stopped by a bowl (20d), before the waste is transported from at least a discharge water trap conduit (40) by the flush water supplied from a flush water supply hole (30d) as a flush water supply means, a flush toilet device (CSd) drives a return pump (506d) after driving a siphon pump (505d) before the supply of flush water has finished.

Description

Flush toilet device

The present invention relates to a flush toilet system for temporarily receiving waste and discharging it with flush water.

As a flush toilet apparatus for temporarily receiving dirt and discharging it with flush water, the one described in Patent Document 1 below has been proposed. As shown in FIG. 1 of the following patent document, the flush toilet apparatus described in the following patent document 1 has a bowl portion having a filth receiving surface for temporarily receiving dirt and washing water in the bowl portion. The cleaning water supply means such as a water storage tank to be supplied, the inlet connected to the lower side of the bowl portion, the ascending pipeline formed to extend upward from the inlet, and extending downward from the end of the ascending pipeline A drainage trap which has a descending pipeline formed, stores water from the inlet portion to at least a part of the ascending pipeline when not in use, and forms it as stored water and forms sealing water by at least a part of the stored water And a conduit.

JP, 2010-31551, A

The conventional flush toilet apparatus described in Patent Document 1 described above efficiently drains waste by reducing the time when flush water is pushed into the drainage trap pipeline and the time required for the siphon action along with water saving. In light of the importance of Specifically, attention is focused on how to form the flow of cleaning water other than the swirling flow that pushes floating soil into the water stored in the bowl and guides it to the drainage trap side while suppressing the amount of water. Then, with the object of providing a flush toilet device capable of reliably discharging floating contaminants without leaving it on the reservoir surface of the bowl portion, a new flush toilet device has been proposed.

As described above, in order to meet the demand for water saving, various improvements have been made to the supply of wash water to the bowl portion and the use of wash water in the bowl portion. However, from the lower part of the bowl portion to the drainage trap pipeline, the reservoir water is formed to form the sealing water, but the approach from the side of water conservation to the reservoir water is not sufficiently made. In order to meet the demand for stronger water saving, it is necessary to devise not only the device for washing the bowl portion but also the device for water saving in the drainage trap pipeline.

The present invention has been made in view of such problems, and an object thereof is to provide a flush toilet apparatus with improved water saving performance by devising handling of stored water in a bowl portion and a drainage trap pipeline. It is in.

In order to solve the above problems, a flush toilet apparatus according to the present invention is a flush toilet apparatus for temporarily receiving waste and discharging it together with washing water, which has a waste receiving surface for temporarily receiving waste. A bowl portion, a flush water supply means for supplying flush water to the bowl portion, and a lower portion of the bowl portion are connected, and when not in use, the reservoir is stored as a reservoir and sealed by at least a part of the reservoir A drainage trap pipeline forming water and a part of the stored water are drawn in from the bowl portion or the drainage trap pipeline as suctioned water, and the drawn suctioned water is returned to the bowl unit or the drainage trap pipeline And a stored water utilization mechanism.

The stored water utilization mechanism includes: a temporary storage tank for temporarily storing the drawn water; and a drawing-in means for drawing a part of the stored water as the drawn water from the bowl portion or the drainage trap pipeline into the temporary storage tank; It has feedback means for returning the intake water temporarily stored in the temporary storage tank to the bowl portion or the drainage trap pipeline, and control means for controlling the behavior of the withdrawal means and the feedback means. The control means causes the waste water to be transported from the drainage trap at least by the washing water supplied from the washing water supply means when the bowl part temporarily receives the waste and then discharges the washing water together with the washing water. Before the supply means is driven, the return means is driven before the end of the supply of wash water from the wash water supply means.

The flush toilet apparatus according to the present invention comprises a drainage trap pipeline, and the drainage trap pipeline is connected below the bowl portion. And when not using it, a drainage trap pipe line stores water and makes it a stored water, and forms sealed water by at least one copy of the stored water. Sealing water formed in the bowl portion and the drainage trap pipe plays a role of preventing odor from the sewer pipe from entering the toilet room and preventing pests from entering the toilet room. In order to play its role reliably, the sealing water depth of the sealing water formed in the bowl portion and the drainage trap pipeline is set so as not to cause breakage of the sealing water due to evaporation of the stored water forming the sealing water.

On the other hand, if attention is paid to the use of the flush toilet apparatus, the dirt temporarily received by the bowl portion falls below the bowl portion and is temporarily stored at the drainage trap pipeline inlet. In this state, the wash water is supplied by the wash water supply means, and the waste material flows through the drainage trap pipeline to the drain side. Therefore, a part of the stored water that forms the sealing water in the drainage trap pipeline is used for preventing the sealing water breakage when not in use. On the other hand, the dirt that the bowl portion receives at the time of use is temporarily stored near the inlet of the drainage trap pipeline and then flushed away by the washing water. Since drainage water supplied by the reservoir water and washing water supply means on the upstream side (the bowl side) from the periphery of the soil contributes to the discharge of the soil, the reservoir on the downstream side from the soil periphery of the drainage trap pipe line Water does not necessarily contribute to the discharge of waste. Focusing on the characteristics of the drainage trap pipeline of the flush toilet device in use and non-use as described above, the stored water for forming sealing water is stored in the same manner whether used or not. It is not necessary to keep it, and there is room to devise how to store it in use and non-use.

Therefore, in the present invention, a stored water utilization mechanism is provided to draw in a portion of the stored water from the bowl portion or the drainage trap pipeline as suctioned water and return the drawn suctioned water to the bowl portion or the drainage trap pipeline. In the stored water utilization mechanism, when the bowl part temporarily discharges the dirt received with the washing water, the waste water is drawn in at least before the dirt is transported from the drainage trap pipeline by the washing water supplied from the washing water supply means. After driving the means, the return means is driven before the supply of the wash water from the wash water supply means is finished. As described above, when the bowl portion temporarily receives the dirt and then discharges it along with the washing water, the pull-in means and the return means are driven, so that normal drainage is performed in the drainage trap pipeline when not in use; Sealing water which does not tear can be formed reliably.

When the bowl portion temporarily discharges the dirt received with the washing water, the pulling means is driven before the dirt is at least transported from the drainage trap pipeline by the washing water supplied from the washing water supply means. A part of the stored water can be drawn into the temporary storage tank from the drainage trap pipeline and temporarily stored as drawn water. Thereafter, the return means is driven before the end of the supply of wash water from the wash water supply means, so that the intake water temporarily stored in the temporary storage tank can be returned to the bowl portion or the drainage trap pipeline. it can.

As described above, according to the present invention, normal drainage is performed in the drainage trap pipeline when not in use, and sealing water is reliably formed without tearing, while in the conventional case the drainage trap pipeline is used for discharging dirt. The reservoir water of the area which did not contribute can be drawn in to a temporary storage tank, and can be returned to a bowl part or a drainage trap pipeline at the timing which can contribute to conveyance of filth. Therefore, it is possible to provide a flush toilet apparatus with improved water saving performance by devising the handling of the stored water in the drainage trap pipeline.

Further, in the flush toilet apparatus according to the present invention, the amount of the stored water drawn by the drawing-in means from the drainage trap pipe to the temporary storage tank is an amount that does not break the sealing water formed in the drainage trap pipe. There is also a preference.

In this preferred embodiment, even if the drawing-in means draws stored water from the drainage trap pipeline into the temporary storage tank, the drainage trap pipeline is not ruptured, so that the function of the drainage trap pipeline can be reliably ensured even during use it can. Therefore, even if the stored water is drawn from the drainage trap pipeline at the time of use, it plays a role of preventing odor from the sewage pipe from entering the toilet room and preventing pests from entering the toilet room. it can.

Further, in the flush toilet apparatus according to the present invention, the bowl portion is provided with detection means for detecting a state immediately before use before the user excretes waste, and the control means detects the state immediately before use. It is also preferable to drive the pull-in means accordingly.

In this preferred embodiment, since the detection means drives the drawing-in means in response to the detection of the state immediately before use, the stored water is drawn from the drainage trap pipeline only for the minimum necessary period. In addition, since the state immediately before use before the user excretes the filth is detected, it is not necessary to draw the accumulated water containing the filth into the temporary storage tank. With this configuration, it is possible to reliably avoid a situation in which dirt adheres to the temporary storage tank and the propagation of bacteria is promoted in the temporary storage tank. Therefore, it is possible to reliably prevent bacteria from propagating to the water in the sealed water formed in the drainage trap pipeline communicating with the temporary storage tank, and to avoid the problem that the drainage trap pipeline is contaminated by bacteria. Can. In addition, even if the intake water in the temporary storage tank is returned to the bowl portion or the drainage trap pipeline, it is possible to prevent the waste from remaining in the sealed water of the drainage trap pipeline.

The flush toilet apparatus according to the present invention further comprises a toilet lid covering the bowl portion and a toilet lid driving means for driving the toilet lid, and the control means controls the toilet lid until the pull-in means is driven. It is also preferable to control the toilet lid driving means so as to keep the closed state and open the toilet lid after driving the pulling means.

In this preferred embodiment, the closed state of the toilet lid is maintained until the pull-in means is driven, so that the waste enters the drainage trap pipeline before the stored water in the drainage trap pipeline is drawn into the temporary storage tank. It can be prevented reliably. In addition, by opening the toilet lid after driving the pull-in means, it is possible to notify the user that the flush toilet apparatus has become usable.

In the flush toilet apparatus according to the present invention, preferably, the control means drives the return means based on the supply of wash water from the wash water supply means.

In the present invention, the drawn-in water is used for transporting the filth and sealing water formation after cleaning by returning the drawn-in water drawn into the temporary storage tank to the bowl portion or the drainage trap portion. As described above, in order to use the intake water stored in the temporary storage tank for filth transport and sealing water formation, it is essential that the user return the intake water to the bowl portion or the drainage trap portion after completing the excretory action. Become. Therefore, it is not preferable to return the intake water to the bowl portion or the drainage trap portion before the end of the excretion, such as during the excretion act. Therefore, by returning the suctioned water to the bowl portion or the drainage trap portion based on the supply of the washing water from the washing water supply means, it is possible to reliably draw the suctioned water into the bowl portion or the drainage trap after the user has finished excrement. Since it is possible to return to the part, it is possible to save water in the flush toilet apparatus by utilizing the drawn water for transporting the filth and forming the sealing water.

In the flush toilet apparatus according to the present invention, preferably, the control means drives the return means after the supply of wash water from the wash water supply means is started.

In this preferred embodiment, the intake water of the temporary storage tank can be returned to the bowl portion or the drainage trap portion at a timing delayed from the supply of the cleaning water by the cleaning water supply means. Therefore, it is possible to prevent the situation in which the stored water in the drainage trap portion is simply drawn in and returned to the bowl portion or the drainage trap portion, and reliable use of the drawn water of the temporary storage tank for the transport of the filth, Water saving of the toilet bowl device can be achieved.

Further, in the flush toilet apparatus according to the present invention, the intake water returned from the temporary storage tank to the bowl portion or the drainage trap pipeline is taken along the drainage direction of the waste in the bowl portion or the drainage trap pipeline. It is also preferred to be configured to supply.

In this preferred embodiment, since the intake water returned to the drainage trap pipeline is supplied along the discharge direction of the waste in the bowl portion or the drainage trap pipeline, the flow of the returned water contributes to the transportation of the dirt. it can.

Further, in the flush toilet apparatus according to the present invention, the detection means includes a human body detection sensor that detects that the user has come to a position corresponding to a state immediately before use, and the control means uses the human body detection sensor. It is also preferable to drive the pull-in means in response to detection by a person and then drive the return means in response to the human body detection sensor not detecting a user.

In the case where the drawing-in means is driven according to the detection of the user of the human body detection sensor, it is assumed that the user carries out an excretory act and then the supply of the washing water is performed by the operation of the washing water supply means. However, there are cases where this is not the case. Even when the user comes to a position corresponding to the state immediately before use, the user may leave without using the flush toilet apparatus as it is. In this case, since the state in which the intake water is stored in the temporary storage tank continues for a long time, there is a possibility that the sealing water may be broken due to the evaporation of the reservoir water forming the sealing water, and some measures are required. Therefore, in this preferred embodiment, the pull-in means is driven according to the detection of the user of the human body detection sensor, and thereafter the feedback means is driven according to the state where the human body detection sensor does not detect the user. Even if the user actually goes away without using it, the water can be reliably returned.

In the flush toilet apparatus according to the present invention, the control means drives the pull-in means in response to detection of the state immediately before use by the detection means, and the feedback means in response to elapse of a predetermined time thereafter. It is also preferable to drive the

In the case where the drawing-in means is driven according to the detection of the user of the human body detection sensor, it is assumed that the user carries out an excretory act and then the supply of the washing water is performed by the operation of the washing water supply means. However, there are cases where this is not the case. Even when the user comes to a position corresponding to the state immediately before use, the user may leave without using the flush toilet apparatus as it is. In this case, since the state in which the intake water is stored in the temporary storage tank continues for a long time, there is a possibility that the sealing water may be broken due to the evaporation of the reservoir water forming the sealing water, and some measures are required. Therefore, in this preferred embodiment, the user is actually used by driving the pulling-in means in response to the detection of the user of the human body detection sensor and then driving the feedback means in response to the lapse of a predetermined time. Even if you go away without fail, you can reliably return the intake water.

In the flush toilet apparatus according to the present invention, it is also preferable that the control means stop the drive after a predetermined time has elapsed after the drive of the pull-in means is started.

In this preferable aspect, the amount of water drawn into the temporary storage tank can be reliably reduced to a predetermined amount by restricting the drive of the drawing-in means to a predetermined time. Therefore, the stored water in the drainage trap pipeline can be drawn in more than necessary, and the sealing water formed by the stored water can be reliably prevented from being broken.

Further, in the flush toilet apparatus according to the present invention, the stored water utilization mechanism does not fall below the lower limit value of the height at which the height of the sealed water by the drive of the drawing-in means is torn off. It is also preferable to have sealing water addition means for separately supplying water.

In this preferred embodiment, since water is supplied by means of additional sealing water separately from the stored water, even when the stored water is evaporated and the amount of water is reduced, the stored water of a predetermined amount can be recovered. Therefore, even if the driving time of the drawing-in means is determined to be a predetermined time, it is possible to reliably prevent the stored water from being drawn in excessively and causing sealing water to break out.

In the flush toilet apparatus according to the present invention, it is also preferable to have a tear preventing means that does not lower the height of the sealing water formed by the stored water than the height that tears the seal water even when the pulling means is driven.

As described above, the drawing-in means draws in a part of the stored water and introduces it to the temporary storage tank, but the amount of the stored water may vary depending on the type of flush toilet device. If it is going to utilize more stored water, it is necessary to adjust a stored water utilization mechanism according to each flush toilet apparatus. In particular, if the drawing-in means draws in the stored water, it should be avoided to cause the sealing water to break even in a short time. In this preferred embodiment, regardless of the amount of water drawn in by the drawing-in means, by providing the anti-sealing means for securing sealing water, the amount of difference in the amount of stored water depending on the type of flush toilet device, the means of drawing-in Even if there is excessive draw-in of water, sealing water can be reliably secured. Therefore, it is possible to provide a flush toilet apparatus that does not cause a break in sealing water while improving the water saving performance by devising the handling of the stored water in the drainage trap pipeline.

Further, in the flush toilet apparatus according to the present invention, when the pull-in means draws the drawn-in water from the stored water, the height of the sealing water formed by the stored water avoids the seal when the drawn-in means draws the drawn-in water from the stored water. It is also preferable that the drawing-in means is configured to restrict the drawing water so as not to draw the drawn water from the stored water when the lower limit height which is the lower limit value of the height to be reached is reached.

In this preferred embodiment, when the stored water is drawn to the lower limit of the height at which the seal can be avoided, the draw-in of the drawn water from the stored water is restricted by the drawing means.

Further, in the flush toilet apparatus according to the present invention, the drawing-in means is configured to draw in the drawn-in water from the stored water by a turbo pump, and the tear-off preventing means has a height of the sealing water When the lower limit height is reached, an air gap is formed between the turbo pump and the stored water, and the turbo pump is caused to suck in air, whereby the drawing-in means draws the drawn water from the stored water. It is also preferable to regulate so as not to be withdrawn.

In this preferred embodiment, a turbo pump is used as the drawing means, and the fact that water can not be drawn when the turbo pump draws air is used to avoid the occurrence of a water seal failure. When the height of the sealing water formed by the stored water reaches the lower limit height so that the turbo pump can draw in the air, the turbo pump can not draw the stored water any more, and the seal is broken. Can be avoided with certainty.

Further, in the flush toilet apparatus according to the present invention, the stored water utilization mechanism has a lead-in pipe that connects the drainage trap pipe and the temporary storage tank, and the lead-in pipe is in the temporary storage tank. It has an edge cutting structure so as not to connect the drawn water stored and the drawn water remaining in the drawn pipe, and when drawing of the drawn water from the stored water by the drawn means is stopped, It is also preferable that the intake water remaining in the intake conduit is configured to return to the drainage trap conduit.

In this preferred embodiment, it has an edge cutting structure that separates the intake water stored in the temporary storage tank and the intake water remaining in the drainage trap pipeline and the intake pipeline, and is withdrawn when withdrawal from the reservoir water stops. Since the intake water remaining in the pipeline is returned to the drainage trap pipeline, the height of the sealing water of the drainage trap pipeline can be secured by the intake water in the intake pipeline, and the sealing water can be prevented more reliably. .

Further, in the flush toilet apparatus according to the present invention, when the drawing-in means continues to draw the drawn-in water into the temporary storage tank, the return means is configured such that the height of the sealed water is the lower limit value high. It is also preferable to return intake water having an instantaneous flow rate equal to the instantaneous flow rate of the drawn water drawn into the temporary storage tank so that the drawing means does not fall below the maximum size.

In this preferred embodiment, even if the drawing-in means continues to draw water from the stored water, the instantaneous flow rate of the drawn-in water with the drawing-in means and the drawing-in means so that the height of the sealing water does not fall below the lower limit height. Since the same instantaneous flow rate of incoming water is returned, sealing failure can be prevented more reliably.

In the flush toilet apparatus according to the present invention, it is also preferable to have a circulation path configured to be able to circulate the intake water between the bowl portion or the drainage trap pipeline and the temporary storage tank.

In this preferred embodiment, by having this circulation path, the drawn-in water drawn by the drawing-in means from the water in the drainage trap pipeline is sent to the temporary storage tank and returned to the bowl portion or the drainage trap pipeline by the feedback unit. Be Therefore, even if the intake means is excessively supplied with intake water, the return water can be returned by the return means without excessively staying in the temporary storage tank. Therefore, the performance of the stored water utilization mechanism can be exhibited without putting a burden on the temporary storage tank more than necessary.

Further, in the flush toilet apparatus according to the present invention, the drawing-in means is constituted by a drawing-in pump drawing in the drawn-in water from the stored water, while the return means is constituted by the bowl portion or the drainage trap pipe line. It is also preferred that the return pump be a return pump, and that the suction pump and the return pump be provided separately.

In this preferred embodiment, since the suction pump constituting the suction means and the return pump constituting the return means are provided independently, the operation of the suction pump most suitable for drawing the suction water from the stored water, and the temporary storage It can be combined with the operation of the feedback pump which is optimal for returning the inlet water from the tank. Therefore, it is possible to more effectively function the stored water utilization mechanism that draws a portion of the stored water from the bowl portion or the drainage trap pipeline as suctioned water and returns the drawn suctioned water to the bowl portion or the drainage trap pipeline. .

Further, in the flush toilet apparatus according to the present invention, the circulation path includes a lead-in pipe for guiding the drawn-in water from the stored water to the temporary storage tank, and the bowl portion or the drainage of the drawn-in water from the temporary storage tank. A return line leading to a trap line, and water that flows through the bowl portion or the drainage trap line after driving the return pump does not flow back into the return line into the temporary storage tank. It is also preferable to have backflow prevention means.

In this preferred embodiment, since the return pipe line for guiding the intake water from the temporary storage tank to the bowl portion or the drainage trap pipeline is provided, there is a possibility that the inside of the temporary storage tank and the drainage trap pipe may be communicated. When the inside of the temporary storage tank and the drainage trap pipeline are communicated, when the water level on the drainage trap pipeline side becomes higher than the water level in the temporary storage tank, the water on the drainage trap pipeline side flows back into the temporary storage tank There is a fear. Therefore, by providing the backflow prevention means so that the water passing through the bowl portion or the drainage trap pipeline does not flow backward, the backflow of the waste water to the temporary storage tank can be reliably prevented.

Further, in the flush toilet apparatus according to the present invention, the drainage trap pipeline includes an inlet connected to the lower side of the bowl, an ascending pipeline formed to extend upward from the inlet, and the ascending And a descending pipeline formed to extend downward from the end of the pipeline, wherein the backflow prevention means is connected to the first feedback, while the feedback pipeline is lowered from its top to the temporary storage tank And a second return portion connected downward from the top to the bowl portion or the drainage trap pipeline, and the lower end of the flow passage cross section at the top is at the top of the ascending pipeline. It is configured by being formed at a position higher than the lower end of the flow path cross section, and further, after driving the feedback pump, by the first feedback portion and the second feedback portion, sandwiching the topmost portion. By introducing air into the bent portion to be made, it is also preferable to prevent backflow of the to the temporary storage tank.

In the flush toilet apparatus of the present invention, the water level rises to the highest position at the top of the ascending pipeline. Therefore, in this preferred embodiment, the lower end of the flow passage cross-section at the top of the return conduit is formed at a position higher than the lower end of the flow passage cross-section at the top of the rising conduit. In the bent portion, the first return portion side and the second return portion side can be cut off by air. Therefore, the backflow to the temporary storage tank of sewage can be prevented reliably.

Further, in the flush toilet apparatus according to the present invention, the backflow prevention means continues driving of the feedback pump even after water passing through the feedback conduit from the temporary storage tank is discharged, and continues driving of the feedback pump. It is also preferable to introduce air into the bend by

In this preferred embodiment, since the air is introduced to the bending portion by continuing the driving of the feedback pump even after the water passing through the return line from the temporary storage tank is discharged, a means for introducing the air to the bending portion is additionally provided. Therefore, the backflow prevention means can be configured. Therefore, the flush toilet apparatus can be miniaturized with a simple configuration.

Further, in the flush toilet apparatus according to the present invention, the drainage trap pipeline includes an inlet connected to the lower side of the bowl, an ascending pipeline formed to extend upward from the inlet, and the ascending And a descending pipeline formed to extend downward from the end of the pipeline, wherein the drawing-in means is adapted to draw a part of the stored water from the ascending pipeline as drawing water, and the ascending pipe It is also preferred to draw in the water while suppressing the suction of dirt present in the channel.

When a portion of the stored water is drawn in as draw-in water, if the filth in the stored water is drawn with the water, there is a possibility that the lead-in pipe line may be narrowed and blocked, or the inside of the temporary storage tank may be contaminated. In this preferred embodiment, by configuring the drawing-in means so as not to suck in the dirt present in the uplifting line, it is possible to prevent the blockage of the pulling-in line and also prevent the dirt from entering the temporary storage tank. be able to.

Further, in the flush toilet apparatus according to the present invention, the drawing-in means draws the drawn-in water from the rising pipe above the height at which the stored water can form the sealed water in the drainage trap pipe. Is also preferred.

In the flush toilet apparatus according to the present invention, it is also assumed that the dirt travels from the bowl side to the drainage trap pipeline and enters the uplift pipeline. Therefore, by configuring the drawing-in means to draw in the drawn-in water from the stored water at a position higher than the height at which sealing water can be formed in the rising pipe, it is possible to reliably suppress the drawing-in of the waste.

Further, in the flush toilet apparatus according to the present invention, the stored water utilization mechanism is laterally connected to the inside of the drainage trap pipeline so that the drainage trap pipeline bends and passes along the curved surface, and the drainage trap pipeline It is also preferable that the water intake pipe is in communication with the temporary storage tank, and the drawn water is drawn from the drainage trap pipeline into the temporary storage tank through the suction pipe.

In the flush toilet apparatus according to the present invention, the drainage trap pipeline is formed from the upstream side to the downstream side while being bent to form sealing water. At the intersection of the curved surface and the drainage trap pipeline, the water flowing through the drainage trap pipeline has a strong tendency toward the outside. Therefore, in this preferred embodiment, when drawing in the drawn water from the stored water, the drawing-in pipe is provided so as to be connected from the side into the drainage trap pipe line so as to penetrate the surface along which the drainage trap pipe bends. To make it difficult to pull in the filth.

Further, in the flush toilet apparatus according to the present invention, the flush water supplied by the flush water supply means to the bowl after the bowl portion receives the dirt is drained and flows through the drainage trap pipeline. It is also preferable to have an abnormal intrusion suppression means for suppressing intrusion into the temporary storage tank.

The water to be drawn in and used by the drawing-in means is a part of the stored water, so if the washing water for draining the filth is drawn in, it becomes an unexpected intrusion which is not originally supposed. If such abnormal entry of washing water is overlooked, there is a concern that the entry of dirt and the reduction of water-saving performance may occur. In this preferred embodiment, the provision of the above-described abnormal intrusion suppression means suppresses the infiltration of normal cleaning water into the stored water utilization mechanism.

Further, in the flush toilet apparatus according to the present invention, the abnormal entry suppressing means is configured to set the flow resistance of the lead-in pipe extending from the drainage trap pipe to the temporary storage tank more than the flow resistance of the drainage trap pipe. It is also preferable to constitute by raising.

In this preferred embodiment, abnormal entry of normal cleaning water into the lead-in pipe can be suppressed with a simple configuration in which the flow-path resistance of the lead-in pipe is higher than the flow resistance of the drainage trap pipe. .

Further, in the flush toilet apparatus according to the present invention, the drainage trap pipeline includes an inlet connected to the lower side of the bowl, an ascending pipeline formed to extend upward from the inlet, and the ascending And a descending pipeline formed to extend downward from the end of the pipeline, wherein the lower end of the flow passage cross section at the top of the lead-in pipeline is higher than the lower end of the flow passage cross section at the top of the ascending pipeline. It is also preferred that it be formed in position.

In this preferred embodiment, the lower end of the flow passage cross section at the top of the lead-in conduit is formed at a position higher than the lower end of the flow passage cross-section at the top of the rising pipe of the drainage trap pipe. Even if normal cleaning water is drawn in, it can be reliably suppressed that the cleaning water flows into the temporary storage tank.

Further, in the flush toilet apparatus according to the present invention, it is also preferable that the lead-in conduit is formed with a bent portion by the first lead-in portion and the second lead-in portion sandwiching the topmost portion.

In this preferable aspect, the flow path resistance can be further enhanced by forming the bent portion at the topmost portion, and the inflow of the flush water to the temporary storage tank can be reliably suppressed.

A combination of the above-described elements as appropriate may also be included in the scope of the invention for which protection by a patent is sought by the present patent application.

ADVANTAGE OF THE INVENTION According to this invention, handling of the stored water in a drainage trap pipe line can be devised, and the flush toilet apparatus which improved water-saving performance more can be provided.

It is sectional drawing which shows typically the flush toilet apparatus which concerns on 1st Embodiment of this invention. It is a block diagram which shows the control structure of the flush toilet apparatus which concerns on 1st Embodiment of this invention. It is a flowchart which shows operation | movement of the flush toilet apparatus which concerns on 1st Embodiment of this invention. It is a typical sectional view for explaining the operation of the flush toilet device concerning a 1st embodiment of the present invention. It is a typical sectional view for explaining the operation of the flush toilet device concerning a 1st embodiment of the present invention. It is a typical sectional view for explaining the operation of the flush toilet device concerning a 1st embodiment of the present invention. It is a typical sectional view for explaining the operation of the flush toilet device concerning a 1st embodiment of the present invention. It is a typical sectional view for explaining the operation of the flush toilet device concerning a 1st embodiment of the present invention. It is a typical sectional view for explaining the operation of the flush toilet device concerning a 1st embodiment of the present invention. It is a timing chart which shows the operation of the flush toilet device according to the first embodiment of the present invention. It is a timing chart which shows the modification of FIG. It is a timing chart which shows the modification of FIG. It is sectional drawing which shows typically the flush toilet apparatus which concerns on a modification. It is sectional drawing which shows typically the flush toilet apparatus which concerns on a modification. It is a perspective view which shows typically the flush toilet apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows typically the flush toilet apparatus which concerns on 2nd Embodiment of this invention. It is the figure which expanded the drawing-in pump vicinity shown in FIG. It is a figure for demonstrating the formation position of the communicating hole which a drainage trap pipe line and a drawing-in flow path are connected. It is a figure for demonstrating the connection aspect of the drawing-in flow path with respect to a drainage trap pipeline. It is a block block diagram which shows the control structure of the flush toilet apparatus which concerns on 2nd Embodiment of this invention. FIG. 17 is a schematic cross-sectional view for explaining the operation of the flush toilet apparatus shown in FIGS. 15 and 16; FIG. 17 is a schematic cross-sectional view for explaining the operation of the flush toilet apparatus shown in FIGS. 15 and 16; FIG. 17 is a schematic cross-sectional view for explaining the operation of the flush toilet apparatus shown in FIGS. 15 and 16; FIG. 17 is a schematic cross-sectional view for explaining the operation of the flush toilet apparatus shown in FIGS. 15 and 16; FIG. 17 is a schematic cross-sectional view for explaining the operation of the flush toilet apparatus shown in FIGS. 15 and 16; FIG. 17 is a schematic cross-sectional view for explaining the operation of the flush toilet apparatus shown in FIGS. 15 and 16; FIG. 17 is a schematic cross-sectional view for explaining the operation of the flush toilet apparatus shown in FIGS. 15 and 16; FIG. 17 is a schematic cross-sectional view for explaining the operation of the flush toilet apparatus shown in FIGS. 15 and 16; FIG. 17 is a schematic cross-sectional view for explaining the operation of the flush toilet apparatus shown in FIGS. 15 and 16; FIG. 17 is a schematic cross-sectional view for explaining the operation of the flush toilet apparatus shown in FIGS. 15 and 16; It is a flowchart for demonstrating the operation | movement of the flush toilet apparatus shown to FIG. 15 and FIG.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. In order to facilitate understanding of the description, the same constituent elements in the drawings are denoted by the same reference numerals as much as possible, and redundant description will be omitted.

A flush toilet apparatus according to a first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a cross-sectional view schematically showing a flush toilet apparatus CS according to a first embodiment of the present invention. The flush toilet apparatus CS shown in FIG. 1 mainly depicts the toilet body 10, and a toilet seat, a toilet lid, a flush water supply valve, a remote control and its operation panel are omitted.

As shown in FIG. 1, the toilet body 10 is a flush toilet for temporarily receiving waste and discharging it together with washing water, and comprises a bowl portion 20, a drainage trap pipeline 40, and a pump 50. . The bowl portion 20 is a part of the toilet body 10, and has a dirt receiving surface 201 for temporarily receiving dirt, a rim portion 202 for flowing washing water to the dirt receiving surface 201, and a drainage trap pipe for dirt. And a bowl outlet 203 for flowing into the channel 40. The rim portion 202 is formed on the upper peripheral portion of the dirt receiving surface 201. A wash water supply hole 30 faces the rim portion 202. The bowl outlet portion 203 is formed below the waste receiving surface 201.

The drainage trap pipeline 40 is a portion for receiving dirt and washing water from the bowl portion 20 and flowing it toward the drain pipe. The drainage trap pipeline 40 has an inlet portion 401, an ascending pipeline 402, and a descending pipeline 403. The inlet portion 401 is a portion connected to the bowl outlet portion 203 formed below the waste receiving surface 201 of the bowl portion 20. The inlet 401 receives waste and wash water from the bowl outlet 203 and flows into the riser line 402.

The ascending pipeline 402 is a portion formed on the downstream side of the inlet portion 401 and is formed to extend upward from the inlet portion 401. Therefore, the bowl outlet part 203, the inlet part 401, and the ascending pipeline 402 are connected to form a U-shaped pipeline as a whole.

The downfall pipeline 403 is a section formed downstream of the uplift pipeline 402 and is formed to extend downward from the downstream end of the uplift pipeline 402. Therefore, the stored water WS stored in the U-shaped pipe formed by the bowl outlet portion 203, the inlet portion 401, and the rising pipe 402 is a connecting portion between the rising pipe 402 and the falling pipe 403. It can be accumulated up to As shown in FIG. 1, when the flush toilet system CS is not in use, water is stored from the inlet 401 to at least a part of the ascending pipeline 402 to form a stored water WS, which is at least partially stored. It forms sealing water.

Therefore, the pump 50 pulls in and returns a part of the reservoir water WS stored in the U-shaped pipeline formed by the bowl outlet 203, the inlet 401, and the rising pipeline 402. So, it is intended to make the water saving function more effective. The pump 50 has a temporary storage tank 501, a piston 502, and a temporary storage flow path 503.

The temporary storage tank 501 is a tank for drawing in and storing a part of the stored water WS. A piston 502 is provided in the temporary storage tank 501. The piston 502 is configured to be able to move up and down vertically while being in contact with the inner wall of the temporary storage tank 501. The temporary storage tank 501 is connected by a temporary storage flow path 503 to a portion where the bowl outlet 203 and the inlet 401 are formed.

The piston 502, as shown in FIG. 1, is in a standby state at the highest position when not in use. As described later, the piston 502 can draw the stored water WS into the temporary storage tank 501 by lowering from the state shown in FIG. 1. Further, the piston 502 can be returned from the state shown in FIG. 1 and then returned to the bowl outlet 203 and the inlet 401 by raising the piston 502.

Subsequently, a control configuration of the flush toilet apparatus CS will be described with reference to FIG. FIG. 2 is a block diagram showing a control configuration of the flush toilet apparatus CS. As shown in FIG. 2, the flush toilet bowl device CS includes a CPU 60 (control means), a human body detection sensor 601 (detection means), a remote control operation panel 602, a timer 603, a pump 50, and a water supply valve 301. And a toilet lid opening / closing mechanism 604 (a toilet lid driving means).

The human body detection sensor 601 is a sensor for detecting that the user who uses the flush toilet bowl device CS has come to a position just before use (a position where the user stands close to the toilet body 10). The human body detection sensor 601 outputs a detection signal to the CPU 60.

The operation panel 602 is a panel on which buttons and a display unit are formed when the user operates the flush toilet apparatus CS. Operation panel 602 outputs an operation instruction signal to CPU 60 in response to the button operation of the user.

The timer 603 is a device capable of measuring time. The timer 603 outputs a clock signal indicating the time to the CPU 60. In the case of the present embodiment, the timer 603 includes two independent timers A and B.

The CPU 60 outputs a predetermined operation instruction signal based on the detection signal output from the human body detection sensor 601, the operation instruction signal output from the operation panel 602, and the clock signal output from the timer 603.

Specifically, the CPU 60 outputs, to the pump 50, a pull-in instruction signal for drawing a part of the stored water WS from the drainage trap pipeline 40 into the temporary storage tank 501. When receiving the pull-in instruction signal, the pump 50 lowers the piston 502 away from the temporary storage flow path 503 and pulls in part of the stored water WS. The CPU 60 outputs, to the pump 50, a return instruction signal for returning the intake water drawn into the temporary storage tank 501 to the drainage trap pipeline 40. The pump 50 raises the piston 502 so as to approach the temporary storage flow path 503 when receiving the return-to-back instruction signal, and returns the intake water to the drainage trap pipeline 40.

The CPU 60 outputs a cleaning instruction signal to the water supply valve 301. When the water supply valve 301 receives the cleaning instruction signal, the water supply valve 301 separates the valve body provided inside from the valve seat and operates so that the cleaning water flows into the cleaning water supply hole 30. When the cleaning instruction signal is stopped, the water supply valve 301 brings the valve body into contact with the valve seat to stop the supply of the cleaning water.

The CPU 60 outputs a toilet lid opening instruction signal for opening the toilet lid to the toilet lid opening / closing mechanism 604 (a toilet lid driving means). When the toilet lid opening / closing mechanism 604 receives the toilet lid opening instruction signal, it drives a motor provided therein to open the toilet lid. When the toilet lid opening / closing mechanism 604 receives a toilet lid closing instruction signal for closing the toilet lid, it drives a motor provided therein to close the toilet lid.

Subsequently, the operation of the flush toilet apparatus CS will be described with reference to FIG. FIG. 3 is a flow chart showing the operation of the flush toilet apparatus CS. In step S01, the human body detection sensor 601 detects the user and outputs a detection signal to the CPU 60. In step S02 following step S01, the CPU 60 starts clocking by the timer 603. Specifically, clocking by the timer A included in the timer 603 is started.

In step S03 following step S02, the CPU 60 outputs a drawing instruction signal to the pump 50. The pump 50 lowers the piston 502 so as to separate it from the temporary storage channel 503, and draws in a part of the stored water WS. This state is shown in FIG.

As shown in FIG. 4, when the piston 502 descends, the stored water WS is drawn in via the temporary storage flow path 503 and stored in the temporary storage tank 501 as drawn water WP. The stored water WS is maintained at a constant water level so that the descending pipeline 403 and the bowl portion 20 do not ventilate even when the pump 50 draws in a part of the stored water WS.

Returning to FIG. 3, in step S04 following step S03, the CPU 60 outputs a toilet lid open instruction signal to the toilet lid opening and closing mechanism 604. The toilet lid opening / closing mechanism 604 opens the toilet lid.

In step S05 following step S04, it is determined whether or not discharge of a filth has been instructed by the operation of the operation panel 602. If the discharge of the filth is instructed, the process proceeds to the process of step S06. If the discharge of the filth is not instructed, the process proceeds to the process of step S07.

If the discharge of the waste is instructed by the operation of the operation panel 602, the waste is discharged into the bowl portion 20. This state is shown in FIG. As shown in FIG. 5, the excreted filth MB enters the reservoir water WS where the water level is low.

Returning to FIG. 3, in step S06, the CPU 60 outputs a cleaning instruction signal to the water supply valve 301. When the water supply valve 301 receives the cleaning instruction signal, the water supply valve 301 separates the valve body provided inside from the valve seat and operates so that the cleaning water flows into the cleaning water supply hole 30. This state is shown in FIG. As shown in FIG. 6, wash water is supplied from the wash water supply hole 30 into the bowl portion 20. The wash water supplied from the wash water supply hole 30 flows through the rim portion 202 and into the waste receiving surface 201. The washing water that has cleaned the dirt receiving surface 201 flows from the bowl outlet 203 into the drainage trap pipeline 40.

Referring back to FIG. 3, in step S07, it is determined whether the detection signal is continuously output from the human body detection sensor 601. If the detection signal is continuously output from the human body detection sensor 601, the process returns to step S05. If the detection signal is not continuously output from the human body detection sensor 601, the process proceeds to step S08.

In step S08, it is determined whether the time measurement by the timer A of the timer 603 has reached the specified time a1. If the time measurement by the timer A of the timer 603 has not reached the specified time a1, the process returns to the process of step S05, and if the time measurement by the timer A of the timer 603 has reached the specified time a1, the process proceeds to the process of step S06.

In step S09 following step S06, the CPU 60 starts counting by the timer 603. Specifically, time measurement by the timer B included in the timer 603 is started.

In step S10 following step S09, it is determined whether the time measurement by the timer B of the timer 603 has reached a specified time b1. If the time measurement by the timer B of the timer 603 has not reached the specified time b1, the process of step S10 is continued, and if the time measurement by the timer B of the timer 603 has reached the specified time b1, the process proceeds to step S11.

In step S11, the suction water WP in the temporary storage tank 501 of the pump 50 is returned to the bowl portion 20 and the drainage trap pipeline 40 side. Specifically, the CPU 60 outputs, to the pump 50, a withdrawal instruction signal for returning the intake water drawn into the temporary storage tank 501 to the drainage trap pipeline 40. The pump 50 raises the piston 502 so as to approach the temporary storage flow path 503 when receiving the return-to-back instruction signal, and returns the intake water to the drainage trap pipeline 40. This state is shown in FIG.

As shown in FIG. 7, the piston 502 is raised, and the suction water WP is returned from the space between the bowl outlet 203 and the inlet 401 toward the rising pipeline 402. Since the dirt MB has already flowed in the area from the up line 402 to the down line 403, the return water WP will contribute to the discharge of the dirt MB.

A state where the piston 502 is further raised from the state of FIG. 7 is shown in FIG. As shown in FIG. 8, the piston 502 ascends to the highest part in the temporary storage tank 501, and the drawn water WP is completely returned to the drainage trap pipeline 40 side. Thereafter, the cleaning instruction signal output from the CPU 60 to the water supply valve 301 is stopped, and the water supply valve 301 brings the valve body into contact with the valve seat to stop the supply of the cleaning water (see FIG. 9). When the supply of wash water is completely stopped, the initial state as shown in FIG. 1 is restored.

Returning to FIG. 3, in step S12 following step S11, the counts of timer A and timer B included in the timer 603 are reset.

Refer to FIG. 10 for the supply timing of the wash water supplied from the wash water supply hole 30 and the supply timing of the draw-in water returned after being drawn into the temporary storage tank 501 in the operation of the flush toilet apparatus CS described above. While explaining. FIG. 10 is a timing chart showing the operation of the flush toilet apparatus CS.

As shown in FIG. 10, in the flush toilet device CS, the water supply valve 301 is opened at time t1 to supply flush water to the bowl portion 20, and the supply is stopped at time t4 (step S06 in FIG. 3, See Figures 6, 7 and 8). Further, the intake water WP is returned from the temporary storage tank 501 from time t2 to time t3 (see step S11 in FIG. 3 and FIGS. 7 and 8). As described above, it is also preferable to return the suction water WP from the temporary storage tank 501 from the start of supply of wash water to the bowl portion 20 to the end of supply, but the timing of pull back of the suction water WP is limited to this. It is not a thing.

As shown in FIG. 11, it is also preferable to return the suction water WP after the supply of the washing water to the bowl portion 20 is finished. In the example shown in FIG. 11, the water supply valve 301 is opened at time t5 to supply wash water to the bowl portion 20, and the supply is stopped at time t6. At time t7 from time t6 (may be slightly before or after time t6), the suction water WP is returned from the temporary storage tank 501.

On the other hand, as shown in FIG. 12, it is also preferable to return the suction water WP prior to the supply of the washing water to the bowl portion 20. In the example shown in FIG. 12, the intake water WP is returned from the temporary storage tank 501 from time t8 to time t9. At time t9, the water supply valve 301 is opened to supply wash water to the bowl portion 20, and the supply is stopped at time t10.

As described above, the flush toilet system CS according to the present embodiment is a flush toilet system for temporarily receiving waste and discharging it together with the flush water, and having a waste receiving surface 201 for temporarily receiving waste. A bowl portion 20, a flush water supply hole 30 and a flush valve 301 as flush water supply means for supplying flush water to the bowl portion 20, an inlet portion 401 connected below the bowl portion 20, and an upper portion from the inlet portion 401 And the downfall line 403 formed to extend downward from the end of the upturn line 402, and when not in use, at least And a drain trap pipe 40 for storing water in part to form stored water WS and forming sealed water with at least a part of the stored water WS.

The flush toilet apparatus CS according to the present embodiment further draws a part of the stored water WS from the drainage trap pipe line 40 and temporarily stores it as the drawn water WP, and the drainage trap pipe line 40 Functions as a drawing-in means for drawing a part of the stored water WS into the temporary storage tank 501 and returns the drawing-in water WP temporarily stored in the temporary storage tank 501 back to the bowl portion 20 or the drainage trap pipeline 40 And a CPU 60 as control means for controlling the behavior of the pump 50.

After the bowl portion 20 temporarily receives the waste, the CPU 60 discharges the waste with the washing water before the waste is transported to at least the upward pipeline 402 by the washing water supplied from the washing water supply hole 30. After driving the pump 50 as the drawing-in means, before the supply of the wash water from the wash water supply hole 30 is finished, the pump 50 is driven as the return means.

The flush toilet system CS includes a drainage trap pipeline 40, and the drainage trap pipeline 40 is formed to extend upward from the inlet 401 connected to the lower side of the bowl 20 and the inlet 401 It has a conduit 402 and a downfall conduit 403 formed to extend downward from the end of the uplift conduit 402. Then, when not in use, water is stored from the inlet portion 401 to at least a part of the ascending pipeline 402 to form a stored water WS, and at least a part of the stored water WS forms sealed water. Sealing water formed in the drainage trap pipeline 40 plays a role of preventing odor from the sewer pipe from entering the toilet room and preventing pests from entering the toilet room. In order to play its role reliably, the sealing water depth of the sealing water formed in the drainage trap pipeline 40 is set so that the sealing water break does not occur due to evaporation of the stored water forming the sealing water.

On the other hand, when focusing on the use of the flush toilet bowl device CS, the dirt temporarily received by the bowl portion 20 falls below the bowl portion 20 and is temporarily stored at the inlet of the drainage trap pipeline 40. In this state, washing water is supplied, and the waste material flows through the drainage trap pipeline 40 to the drain side. Therefore, a part of the stored water WS which forms sealing water in the drainage trap pipeline 40 is used for preventing sealing failure when not in use. On the other hand, the dirt which the bowl portion 20 receives at the time of use is temporarily stored near the inlet of the drainage trap pipeline 40 and then flushed away by the flush water. The accumulated water WS and wash water on the upstream side (the bowl side) from the periphery of the soil contribute to the drainage of the soil, so the drainage water WS on the downstream side from the soil around the soil in the drainage trap pipe is for drainage of the soil. It does not necessarily contribute. Focusing on the characteristics of the drainage trap pipe line 40 of the flush toilet apparatus CS in use and non use as described above, the stored water WS for forming sealing water is the same in use and nonuse It is not always necessary to store it, and there is room to devise how to store it in use and non-use.

Therefore, in the present embodiment, after the bowl portion 20 temporarily receives the dirt MB, when discharging the dirt MB with the washing water, it is used as a pulling-in means before the dirt MB is at least transported to the upward pipeline 402 by the washing water. After driving the pump 50, it is assumed that the pump 50 as a return means is driven before the supply of washing water is finished. As described above, after the bowl portion 20 temporarily receives the dirt MB, the pump 50 which functions as a drawing-in means and a return means is driven when discharging with the washing water, so that the drainage trap pipeline 40 is not used. Normal stored water WS can be performed to form sealing water that can not be sealed.

After the bowl portion 20 temporarily receives the waste, when discharging the waste together with the washing water, the pump 50 is operated as a drawing-in means before the waste MB is transported to at least the upward pipeline 402 by the washing water. A part of the stored water WS can be drawn into the storage tank 501 from the drainage trap pipeline 40 and temporarily stored as a drawn water WP. Thereafter, since the pump 50 is driven as the return means before the supply of the washing water is finished, the drawn water WP temporarily stored in the temporary storage tank 501 can be returned to the drainage trap pipeline 40.

As described above, according to the present embodiment, when not in use, the normal stored water WS is applied to the drainage trap pipeline 40 to reliably form seal water without tearing, while in use, dirt in the drainage trap pipeline 40 The stored water WS in the region which has not conventionally contributed to the discharge of the MB can be drawn into the temporary storage tank 501 and returned to the drainage trap pipeline 40 at a timing that can contribute to the transport of the waste MB. Accordingly, it is possible to provide the flush toilet apparatus CS with improved water saving performance by devising the handling of the stored water WS in the drainage trap pipeline 40.

Further, in the flush toilet apparatus CS according to the present embodiment, the amount of the stored water WS drawn by the pump 50 from the drainage trap pipeline 40 to the temporary storage tank 501 as the drawing-in means is sealed in the drainage trap pipeline 40 Is an amount that can not be broken.

As described above, even if the pump 50 as the drawing-in means draws the stored water WS from the drainage trap pipeline 40 into the temporary storage tank 501, the drainage trap pipeline 40 is not ruptured. The function can be assuredly secured. Therefore, even if the stored water WS is drawn from the drainage trap pipeline 40 at the time of use, it plays a role of preventing odor from the sewage pipe from entering the toilet room and preventing pests from entering the toilet room. be able to.

In the flush toilet apparatus CS according to the present embodiment, the bowl portion 20 is provided with the human body detection sensor 601 as a detection means for detecting the state immediately before use before the user excretes the filth. In response to the detection of the state immediately before use, the pump 50 as the drawing-in means is driven.

As described above, since the pump 50 as the pull-in means is driven according to the detection of the state immediately before use by the human body detection sensor 601, the stored water WS is drawn from the drainage trap pipeline 40 only for the necessary minimum period. Further, since the state immediately before use before the user excretes the filth is detected, the stored water WS mixed with the filth MB is not drawn into the temporary storage tank 501. By configuring in this manner, it is possible to reliably avoid a situation in which the dirt MB adheres to the temporary storage tank 501 and the propagation of bacteria is promoted in the temporary storage tank 501. Therefore, bacteria can be reliably prevented from propagating to the water in the sealed water formed in the drainage trap pipeline 40 communicating with the temporary storage tank 501, and the drainage trap pipeline 40 becomes contaminated with bacteria. It can be avoided. In addition, even if the suction water WP in the temporary storage tank 501 is returned to the drainage trap pipeline 40, it is also possible to prevent the dirt MB from remaining in the sealed water of the drainage trap pipeline 40.

In the flush toilet apparatus CS according to the present embodiment, the toilet lid for covering the bowl portion 20 and the toilet lid opening / closing mechanism 604 for driving the toilet lid are provided, and the CPU 60 is operated until the pump 50 as the pull-in means is driven. The toilet lid opening / closing mechanism 604 is controlled so as to maintain the closed state of the toilet lid and to open the toilet lid after driving the pump 50 as a pull-in means.

As described above, since the toilet lid is kept closed until the pump 50 is driven as the pull-in means, the dirt MB is drained before the stored water WS of the drain trap pipeline 40 is drawn into the temporary storage tank 501. Entry into the conduit 40 can be reliably prevented. Further, by opening the toilet lid after driving the pump 50 as the drawing-in means, it is possible to notify the user that the flush toilet apparatus CS has become usable.

Further, in the flush toilet apparatus CS according to the present embodiment, the CPU 60 drives the pump 50 as feedback means based on the supply of flush water. In the present embodiment, the intake water WP drawn into the temporary storage tank 501 is returned to the drainage trap pipe line 40, and the intake water WP is used to form a seal water after waste transport and cleaning. As described above, in order to use the intake water WP stored in the temporary storage tank 501 for filth transport and sealing water formation, the user may return the intake water WP to the drainage trap pipeline 40 after finishing the excretory act. It is essential. Therefore, it is not preferable to return the intake water WP to the drainage trap pipeline 40 before the end of the excretion, such as during the excretion act. Therefore, by returning the suction water WP to the drainage trap pipeline 40 in conjunction with the supply of the washing water, the suction water WP is reliably returned to the drainage trap pipeline 40 after the user has finished the excretion act. As a result, it is possible to save water in the flush toilet apparatus CS by utilizing the drawn water WP for transporting the filth MB and forming the sealing water.

Further, in the flush toilet apparatus CS according to the present embodiment, the CPU 60 drives the pump 50 as feedback means after the supply of flush water is started. As described above, the intake water WP of the temporary storage tank 501 can be returned to the drainage trap pipeline 40 at a timing delayed from the supply of the washing water. Therefore, it is possible to prevent the situation in which the stored water WS in the drainage trap pipeline 40 is merely drawn in and returned to the drainage trap pipeline 40 simply, and the water WP of the temporary storage tank 501 is reliably used to transport the filth MB. It can be used to save water in the flush toilet apparatus CS.

Further, in the flush toilet apparatus CS according to the present embodiment, it is preferable that the CPU 60 drive the pump 50 as a feedback unit after the supply of flush water is finished (see FIG. 11). As described above, since the suction water WP of the temporary storage tank 501 is returned to the drainage trap pipe line 40 after the supply of washing water is finished, the suction water WP is returned without being affected by the water flow due to the supply of washing water. It can be carried out. Therefore, return of drawn-in water WP by pump 50 as a return means can be realized by small conveyance power.

Further, in the flush toilet apparatus CS according to the present embodiment, the CPU 60 flushes the flush water WP following the suction water WP returned from the temporary storage tank 501 to the drainage trap pipeline 40 by driving the pump 50 as feedback means. It is also preferable to drive the pump 50 as feedback means so as to flow into the trap line 40 (see FIG. 12).

As described above, since the cleaning water flows into the drainage trap pipeline 40 following the suction water WP returned from the temporary storage tank 501 to the drainage trap pipeline 40, the cleaning water is involved in the suction water WP. Can be configured to flow to the sewage side. Therefore, it is possible to prevent the situation in which the stored water WS in the drainage trap pipeline 40 is merely drawn in and is simply returned to the bowl portion or the drainage trap portion. In addition, for example, even if the suction water WP is dirty, the washing water is caught and flows to the sewage side, so that the dirt can not be left in the drainage trap pipeline 40, and the washing can be surely done.

Further, in the flush toilet apparatus CS according to the present embodiment, the intake water WP returned from the temporary storage tank 501 to the drainage trap pipeline 40 is supplied along the discharge direction of the dirt MB in the drainage trap pipeline 40 It is configured. As described above, since the intake water WP returned to the drainage trap pipeline 40 is supplied along the discharge direction of the dirt MB in the drainage trap pipeline 40, the flow of the recycled water contributes to the transport of the dirt MB. Can.

Further, in the flush toilet apparatus CS according to the present embodiment, the intake water WP returned from the temporary storage tank 501 to the drainage trap pipeline 40 is configured to be supplied toward the rising pipeline 402. A more preferred example of this configuration is shown in FIG. In the flush toilet apparatus CSa shown in FIG. 13, the temporary storage flow path 503 a of the pump 50 is connected between the ascending pipeline 402 and the inlet 401 along the ascending pipeline 402. In this preferred embodiment, since the intake water WP returned to the drainage trap pipeline 40 is supplied toward the rising pipeline 402, the flow of the returned water can be further contributed by the transport of the dirt MB.

From the viewpoint of transport of the filth MB, it is also preferable that the return water WP be returned to a portion other than the rising conduit 402. FIG. 14 shows an example of feeding back to the downward pipeline 403. As shown in FIG. 14, in the flush toilet apparatus CSb, the pump 50b is configured by a temporary storage tank 501b, a piston 502b, a lead-in flow passage 503b, and a return flow passage 504b. The inlet channel 503 b connects the inlet 401 of the drainage trap pipeline 40 and the temporary storage tank 501 b, and the opening / closing valve 1 is provided. The return flow path 504 b connects the downward pipe line 403 of the drainage trap pipe 40 and the temporary storage tank 501 b, and the on-off valve 2 is provided.

When the pump 50b draws in the stored water WS, the on-off valve 1 is opened and the on-off valve 2 is closed to lower the piston 502b. On the other hand, when water drawn back by the pump 50b is returned, the on-off valve 1 is closed and the on-off valve 2 is opened to raise the piston 502b. By doing this, the stored water WS in the drainage trap pipeline 40 is drawn in, and the drawn-in water is returned to the downfall pipeline 403. If the return flow path 504 b is connected to the bowl portion 20, it is also possible to supply water to be returned to the bowl portion 20.

Further, in the flush toilet apparatus CS according to the present embodiment, the CPU 60 drives the pump 50 as the pull-in means according to the detection of the user of the human body detection sensor 601 and thereafter the human body detection sensor 601 does not detect the user. The pump 50 as a feedback means is driven according to the fact that

When the pump 50 as the pull-in means is driven according to the detection of the user of the human body detection sensor 601, it is assumed that the user performs an excretory action and then the supply of washing water is performed, Sometimes it is not the case. Even if the user comes to a position corresponding to the state immediately before use, the user may leave without using the flush toilet apparatus CS as it is, and some measures are required. Therefore, in the present embodiment, the pump 50 as the pull-in means is driven according to the detection of the user of the human body detection sensor 601, and thereafter, the feedback means according to the state where the human body detection sensor 601 does not detect the user. By driving the pump 50, the drawn water WP can be reliably returned even if the user actually goes away without using it.

Further, in the flush toilet apparatus CS according to the present embodiment, the CPU 60 drives the pump 50 as the drawing-in means in response to the human body detection sensor 601 detecting the state immediately before use, and thereafter the predetermined time has elapsed. It is also preferable to drive the pump 50 as a feedback means.

When the pump 50 as the pull-in means is driven according to the detection of the user of the human body detection sensor 601, it is assumed that the user performs an excretory action and then the supply of washing water is performed, Sometimes it is not the case. Even if the user comes to a position corresponding to the state immediately before use, the user may leave without using the flush toilet apparatus CS as it is, and some measures are required. Therefore, in the present embodiment, the pump 50 as the pull-in means is driven according to the detection of the user of the human body detection sensor 601, and thereafter, the pump 50 as the feedback means is driven according to the lapse of a predetermined time. Also, even if the user actually goes away without using it, the water WP can be reliably returned.

A flush toilet apparatus according to a second embodiment of the present invention will be described with reference to FIG. 15 and FIG. FIG. 15 is a schematic perspective view showing a flush toilet apparatus CSd according to a second embodiment of the present invention. FIG. 16 is a cross-sectional view schematically showing a flush toilet apparatus CSd according to a second embodiment of the present invention. The flush toilet apparatus CSd shown in FIG. 16 mainly depicts the toilet body 10d, and the toilet seat, the toilet lid, the flush water supply valve, the remote control and the operation panel thereof are omitted.

As shown in FIG. 15, the flush toilet apparatus CSd includes a toilet body 10d and a sanitary washing device 70d. The sanitary washing device 70d is configured to be able to discharge washing water for washing the local area of the user from the washing nozzle 701d.

As shown in FIG. 16, the toilet body 10d constitutes a flush toilet for temporarily receiving waste and discharging it together with washing water, and comprises a bowl portion 20d, a drainage trap pipeline 40d, and a temporary storage tank. And 50d. The bowl portion 20 is a part of the toilet body 10, and has a dirt receiving surface 201d for temporarily receiving dirt, a rim portion 202d for flowing washing water to the dirt receiving surface 201d, and a drainage trap pipe for dirt And a bowl outlet 203d for flowing into the channel 40d. The rim portion 202d is formed on the upper peripheral portion of the waste receiving surface 201d. A wash water supply hole 30d faces the rim portion 202d. The bowl outlet portion 203d is formed below the waste receiving surface 201d.

The drainage trap pipeline 40d is a portion for receiving dirt and washing water from the bowl portion 20d and flowing it toward the drain pipe. The drainage trap pipeline 40d has an inlet portion 401d, a rising pipeline 402d, and a falling pipeline 403d. The inlet portion 401d is a portion connected to the bowl outlet portion 203d formed below the waste receiving surface 201d of the bowl portion 20d. The inlet portion 401d receives waste and washing water from the bowl outlet portion 203d and pours it into the rising pipeline 402d.

The ascending pipeline 402d is a portion formed on the downstream side of the inlet portion 401d and is a portion formed to extend upward from the inlet portion 401d. Accordingly, the bowl outlet portion 203d, the inlet portion 401d, and the ascending pipeline 402d are connected to form a U-shaped pipeline as a whole.

The downward pipeline 403d is a section formed downstream of the upward pipeline 402d and is formed to extend downward from the downstream end of the upward pipeline 402d. Therefore, the stored water WS stored in the U-shaped pipe formed by the bowl outlet portion 203d, the inlet portion 401d, and the rising pipe 402d is a connection portion between the rising pipe 402d and the falling pipe 403d. It can be accumulated up to As shown in FIG. 16, when the flush toilet system CSd is not in use, water is stored from the inlet portion 401d to at least a part of the rising pipe line 402d to form a stored water WS, and at least a portion of the stored water WS It forms sealing water.

The temporary storage tank 50d is a tank for drawing in a part of the stored water WS from the drainage trap pipe line 40d and temporarily storing it as drawn water. The drainage trap pipeline 40d and the temporary storage tank 50d are connected by a lead-in pipeline 503d (first lead-in portion), a bent portion 508d (uppermost portion), and a lead-in pipeline 507d (second lead-in portion).

The lead-in pipe 503 d is a portion connected to the drainage trap pipe 40 d. The lead-in conduit 503d extends obliquely upward from the portion connected to the drainage trap conduit 40d. A bent portion 508d is connected to the lead-in conduit 503d, and the bent portion 508d is connected to the lead-in conduit 507d. The lead-in conduit 507 d extends downwardly from the portion connected to the bent portion 508 d and is connected to the upper end of the temporary storage tank 50 d. At the upper end of the temporary storage tank 50d, an air vent 50da is formed at a distance from a portion connected to the lead-in conduit 507d. In the present embodiment, the lead-in pipe 503d is connected to the drainage trap pipe 40d, but may be connected to the bowl outlet 203d.

A drawing pump 505 d is provided in the drawing line 503 d. The suction pump 505 d is a turbo pump. An enlarged sectional view of the drawing-in pump 505d is shown in FIG. As shown in FIG. 17, the drawing-in pump 505d includes a motor 505da and an impeller 505db. The rotation of the motor 505da causes the impeller 505db to rotate, and sucks up the water around the impeller 505db and sends it to the motor 505da. Therefore, if there is no water around the impeller 505d, the suction pump 505d can not suck up the water.

The lead-in conduit 503d is connected to a suction port 404d provided in the rising conduit 402d of the drainage trap conduit 40d. The formation position of the suction port 404d will be described with reference to FIG. As shown in FIG. 18, the drainage trap pipeline 40d is formed to be bent from the inlet portion 401d to the rising pipeline 402d. In the case of this embodiment, the drainage trap pipeline 40d is bent along the plane PLa. The suction port 404d is formed at such a position that the center thereof passes through a plane PLb which passes through the central axis of the ascending pipeline 402 and is orthogonal to the plane PLa.

Further, the lead-in pipe line 503d is connected such that a portion immediately after branching from the drainage trap pipe line 40d is directed toward the upstream side of the drainage trap pipe line 40d. This state is schematically shown to the child 19. As shown in FIG. 19, when the intake pipeline 503d is connected toward the upstream side of the ascending pipeline 402d, when the cleaning water flows in the ascending pipeline 402d and the dirt is transported, the dirt is It does not enter the side of the inlet line 503d, but rather, flows toward the downstream side of the rising line 402d so as to withdraw the waste from the inlet line 503d.

Returning to FIG. 16, the description will be continued. The intake water stored in the temporary storage tank 50d is configured to be able to be returned to the drainage trap pipeline 40d. The temporary storage tank 50d and the drainage trap pipeline 40d are connected by a feedback pipeline 509d, a feedback pipeline 510d (first feedback portion), a feedback pipeline 511d (second feedback segment), and a feedback pipeline 504d.

The return line 509 d is a portion connected to the temporary storage tank 50 d. The return line 509 d extends substantially horizontally from the lower end of the temporary storage tank 50 d. A return line 510d is connected to the return line 509d. The return line 510 d extends substantially vertically from the portion connected to the return line 509 d. A return line 511d is connected to the return line 510d. The return line 511d extends obliquely downward from a portion connected to the return line 510d. A return line 504d is connected to the return line 511d. The return line 504d is bent from a portion connected to the return line 511d and connected to the inlet portion 401d of the drainage trap line 40d.

A feedback pump 506d is provided between the feedback line 509d and the feedback line 510d. By driving the return pump 506d, the intake water in the temporary storage tank 50d is returned to the drainage trap pipeline 40d.

Subsequently, a control configuration of the flush toilet system CSd will be described with reference to FIG. FIG. 20 is a block diagram showing a control configuration of the flush toilet system CSd. As shown in FIG. 20, the flush toilet system CSd includes a control unit 80 (control means), a temporary storage tank water level detection unit 801, a trap water level detection sensor 802, a seating detection sensor 803, and human body proximity detection. A sensor 804, a dirt detection sensor in the trap 805, a temperature detection sensor 806, a remote controller 807, a pull-in pump motor 808, a feedback pump motor 809, a toilet seat / seat lid opening / closing means 810, a measuring means 811, a lamp The speaker 812, the water supply valve 813, and the sanitary washing device 70 d are provided.

The temporary storage tank water level detection unit 801, the trap water level detection sensor 802, the seating detection sensor 803, the human body proximity detection sensor 804, the trap contamination detection sensor 805, the temperature detection sensor 806, and the remote controller 807 An instruction signal is output to the control device 80.

The control device 80 exchanges predetermined measurement signals and control instruction signals with the pull-in pump motor 808, the feedback pump motor 809, the toilet seat / seat lid opening / closing means 810, and the measuring means 811. The control device 80 outputs a predetermined control signal to the lamp / speaker 812, the water supply valve 813 and the sanitary washing device 70d.

Subsequently, the washing operation of the flush toilet bowl device CSd will be described with reference to FIG. 21, FIG. 22, FIG. 23, FIG. 24, FIG. 26, FIG. In the standby stage, as shown in FIG. 21, the stored water WS is stored near the upper end of the rising pipe line 402 d of the drainage trap pipe line 40 d. In the present embodiment, the return pipe 510d and the return pipe 511d are connected to each other more than the flow path cross section lower end position α at the top of the rising pipe 402d which is the uppermost part. The flow passage lower end position β at the top is configured to be high. Further, the lower end position of the flow passage in the bent portion 508d, which is the top of the lead-in conduit, is lower than the flow passage lower end position β at the uppermost portion of the return conduit, which is the portion where the return conduit 510d and the return conduit 511d connect is configured to be at a high position. In the standby state shown in FIG. 21, a part of the stored water WS also flows into the return line 511d and enters the same height as the stored water in the drainage trap line 40d.

Subsequently, as shown in FIG. 22, the suction pump 505d is driven to draw in water from the stored water WS and supply it as temporary water to the temporary storage tank 50d. The water drawn into the temporary storage tank 50d flows into the return line 509d. Since the return line 510 d is raised with respect to the return line 509 d, the air entering the return line 510 d separates the intake water and the reservoir water.

Subsequently, as shown in FIG. 23, the water level of the stored water WS falls, and it becomes impossible to draw in water even if the suction pump 505d is driven later. Since the vent hole 50da is formed in the temporary storage tank 50d, when the drive of the drawing pump 505d is stopped, the water drawn into the drawing pipe line 503d returns to the drainage trap pipe line 40d (see FIG. 24). ).

The state shown in FIG. 24 is the stage at which preparation for receiving the filth is completed. Subsequently, as shown in FIG. 25, the dirt MB gets into the stored water WS. Subsequently, as shown in FIG. 26, the wash water is supplied from the wash water supply hole 30d to the bowl portion 20d, and the dirt MB is made to flow to the rising pipe 402d side.

Subsequently, as shown in FIG. 27, the return pump 506d is driven to feed the drawn water in the temporary storage tank 50d to the drainage trap pipeline 40d side. Thus, when the return pump 506d is driven, the water first connected to the stored water WS and entering the return line 511d is returned to the drainage trap line 40d.

When driving of the feedback pump 506d is further continued from the state shown in FIG. 27, as shown in FIG. 28, the air that has lined up the stored water and the intake water is blown out into the drainage trap pipeline 40d. Finally, the intake water is sequentially returned to the drainage trap pipeline 40d (see FIG. 29), and finally the intake water is completely returned to the drainage trap pipeline 40d until air is ejected (see FIG. 30).

In the present embodiment, since the sanitary washing device 70d is provided, stored water can be replenished. As described above, if the stored water is replenished, it is easy to control the operation of the suction pump 505 d and the feedback pump 506 d assuming that the stored water is always constant.

Refilling control of stored water using the sanitary washing device 70d will be described with reference to FIG. FIG. 31 is a flowchart showing stored water replenishment control. In step S31, clocking by the measuring means 811 which is a timer is started. In step S32 following step S31, the timer specified value is stored as the waiting time. In step S33 following step S32, the measuring means 811 which is a timer is reset.

In step S34 following step S33, it is determined whether the stored water replenishment mode is in effect. If the stored water replenishment mode is selected, the process proceeds to step S36. If the stored water replenishment mode is not set, the process proceeds to step S35. In step S35, the timing by the measuring means 811 is stopped.

In step S36, it is determined whether toilet bowl cleaning has been performed. If toilet bowl cleaning has been performed, the process returns to the process of step S33, and if toilet bowl cleaning has not been performed, the process proceeds to the process of step S37. In step S37, it is determined whether the timer measurement value by the measurement means 811 exceeds the timer specified value. If the timer measurement value does not exceed the timer specified value, the process returns to step S36. If the timer measurement value exceeds the timer specified value, the process proceeds to step S38.

At step S38, the measuring means 811 which is a timer is reset. In step S39 following step S38, the timer specified value is stored as the water discharge time. In step S40 following step S39, the sanitary washing device 70d, which is a stored water replenishment means, is operated to supply the stored water WS with washing water from the washing nozzle 701.

In step S41 following step S40, it is determined whether the timer measurement value by the measuring means 811 exceeds the timer specified value. If the timer measurement value does not exceed the timer specified value, the process of step S41 is repeated. If the timer measurement value exceeds the timer specified value, the process proceeds to step S42. In step S42, the operation of the sanitary washing device 70d, which is a reservoir water replenishment means, is stopped.

As described above, the flush toilet system CSd according to the present embodiment is a flush toilet system for temporarily receiving waste and discharging it together with the flush water, and has a waste receiving surface 201d for temporarily receiving waste. Bowl portion 20d, wash water supply means (water supply valve 813, wash water supply hole 30d) for supplying wash water to the bowl portion 20d, an inlet portion 401d connected below the bowl portion 20d, and an upper portion from the inlet portion 401d A rising conduit 402d formed to extend, and a falling conduit 403d formed extending downward from the end of the rising conduit 402d, and when not in use, at least a portion of the rising conduit 402d from the inlet portion 401d The drainage trap pipeline 40d, which stores the water to form stored water WS and forms sealed water with at least a part of the stored water WS, and one of the stored water WS Pull the pull water from the drain trap pipe 40d, comprising a reservoir water use mechanism for feeding back the drawn-pull water into the bowl portion 20d or the drain trap pipe 40d, a.

The stored water utilization mechanism includes a temporary storage tank 50d for temporarily storing drawn water, and a drawing pump 505d (drawing means) for drawing a part of the stored water WS as a drawn water from the drainage trap pipeline 40d into the temporary storage tank 50d. A return pump 506d (return means) for returning the intake water temporarily stored in the temporary storage tank 50d to the bowl portion 20d or the drainage trap pipeline 40d, and the reservoir is stored even if the suction pump 505d is driven. It has an anti-sealing means which does not lower the height of the sealing water formed by the water WS below the height at which it seals.

The flush toilet apparatus CSd according to the present embodiment includes the drainage trap pipeline 40d, and the drainage trap pipeline 40d extends upward from the inlet 401d connected to the lower side of the bowl 20d and the inlet 401d. And a downfall line 403d formed to extend downward from the end of the upturn line 402d. Then, when not in use, water is stored from the inlet portion 401 d to at least a part of the ascending pipeline 402 d to form a stored water WS, and at least a part of the stored water forms sealed water. Sealing water formed in the drainage trap pipeline 40d plays a role of preventing odor from the sewage pipe from entering the toilet room and preventing pests from entering the toilet room. In order to play its role reliably, the sealing water depth of the sealing water formed in the drainage trap pipeline 40d is set so as not to cause breakage of the sealing water due to evaporation of the stored water forming the sealing water.

On the other hand, when focusing on the use of the flush toilet bowl device CSd, the filth MB temporarily received by the bowl portion 20d falls below the bowl portion 20d and is temporarily stored at the inlet of the drainage trap pipeline 40d. In this state, wash water is supplied by the wash water supply means, and the dirt MB flows through the drainage trap pipeline 40d to the drain side. Therefore, a part of the stored water WS which forms sealing water in the drainage trap pipeline 40d is used for preventing sealing failure when not in use.

On the other hand, the filth MB which the bowl part 20d receives at the time of use is temporarily stored near the entrance of the drainage trap pipeline 40d, and then is flushed by the washing water. In the discharge of the dirt MB, the stored water from the dirt periphery on the upstream side (the bowl portion 20d side) and the washing water supplied by the washing water supply means contribute, so the dirt trapping drainage ditch 40d downstream from the dirt circumference The stored water does not necessarily contribute to the discharge of waste. Focusing on the characteristics of the drainage trap line 40d of the flush toilet system CSd when used and not used as described above, the stored water for forming sealing water is the same whether used or not used. There is no need to reserve it, and there is room to devise how to reserve it in use and non use.

So, in this embodiment, it has a stored water utilization mechanism which draws in a part of the stored water WS from the drainage trap pipe line 40d as drawn water and returns the drawn water drawn in to the bowl portion 20d or the drainage trap pipe line 40d. . When the bowl portion 20d temporarily receives the waste and discharges it with the washing water by the stored water utilization mechanism, the return pump 506d is driven after the suction pump 505d is driven. Therefore, although the stored water WS is held with a certain margin so as to reliably form sealed water when not in use, the stored water is not affected by the soil by driving the suction pump 505d first when flowing the soil. Are stored in temporary storage tank 50d as intake water. The return pump 506d returns the suctioned water to the bowl portion 20d or the drainage trap pipeline 40d, so that the drawn water can contribute to the transport of the waste.

Furthermore, in the present embodiment, even if the suction pump 505 d is driven, a tearing prevention means is provided that does not lower the height of the sealing water formed by the stored water than the height for tearing the seal water. As described above, the suction pump 505d draws in a part of the stored water and introduces it to the temporary storage tank 50d, but the amount of the stored water may vary depending on the type of the flush toilet device CSd. If it is going to utilize more stored water, it is necessary to adjust a stored water utilization mechanism according to each flush toilet apparatus. In particular, when the suction pump 505d draws in the stored water, it should be avoided to cause the sealing water to break even in a short time. Therefore, by providing a seal preventing means, the height of the sealing water formed by the stored water is not reduced below the height at which the seal water is cut. As described above, regardless of the amount of drawn water drawn by the drawing pump 505d, by providing the anti-sealing means for securing the sealed water, the difference in the amount of stored water between the models of the flush toilet device and the drawing pump Sealing water can be reliably secured even if there is excessive draw-in of water drawn 505d. Therefore, it is possible to provide a flush toilet apparatus that does not cause breakage of sealing water while improving the water saving performance by devising the handling of the stored water in the drainage trap pipeline 40d.

Further, the anti-sealing means is a lower limit value height at which the height of the sealing water formed by the stored water is the lower limit value of the height for avoiding the sealing when the drawing-in pump 505d draws the drawn water from the stored water WS. When it reaches, the suction pump is configured to regulate so as not to draw the suctioned water from the stored water WS.

As described above, when the stored water is drawn to the lower limit of the height at which the seal can be avoided, the withdrawal of the drawn water from the stored water by the drawing pump 505d is restricted, and the sealed water can be reliably avoided.

Further, the suction pump 505d is a turbo pump, and is configured to draw in the suctioned water from the stored water WS, and the rupture preventing means is a turbo pump when the height of the sealing water reaches the lower limit value height. An air gap is formed between the mold pump and the stored water, and air is drawn into the turbo pump so that the suction pump 505d is regulated so as not to draw the drawn water from the stored water WS.

As described above, by using a turbo pump as the suction pump 505d, the fact that water can not be withdrawn when the turbo pump draws in air is used to prevent the occurrence of a water sealing failure. When the height of the sealing water formed by the stored water reaches the lower limit height so that the turbo pump can draw in the air, the turbo pump can not draw the stored water any more, and the seal is broken. Can be avoided with certainty.

In the temporary storage tank 50d, the height of the sealing water does not fall below the lower limit height even if the amount of drawable water that can be stored is the draw-in pump 505d draws this amount of draw-in water from the stored water WS. It is also preferable to be configured.

In this preferred embodiment, the amount of water that can be stored in the temporary storage tank 50d is limited so that the water in the amount is not broken even if it is drawn from the stored water WS. Can be reliably prevented, and sealing can be reliably avoided.

In addition, the stored water utilization mechanism has lead-in

pipes

503d and 507d that connect the drainage trap pipe 40d and the temporary storage tank 50d, and the lead-in

pipes

503d and 507d are drawn water stored in the temporary storage tank 50d. And the lead-in conduit remaining in the lead-in conduit 503d is not cut off (see FIG. 23), and when the lead-in from draw water WS is stopped by the lead-in pump 505d, the lead-in pipe Intake water remaining in the passage 503 d is configured to return to the drainage trap pipeline.

Thus, it has an edge cutting structure for separating the intake water stored in the temporary storage tank 50d and the intake water remaining in the drainage trap pipeline 40d and the intake pipeline 503d, and the retraction from the reservoir water WS is When stopped, since the intake water remaining in the intake conduit 503d is returned to the drainage trap conduit 40d, the sealing water can be prevented more reliably.

In addition, when the suction pump 505d continues to draw the suction water from the

suction pipes

503d and 507d to the temporary storage tank 50d, the height of the sealing water does not fall below the lower limit value height of the return pump 506d. In addition, it is also preferable to return intake water having an instantaneous flow rate equal to the instantaneous flow rate of the intake water drawn into the temporary storage tank 50d by the suction pump 505d.

With this configuration, even if the suction pump 505d continues to draw water from the stored water WS, the suction pump 505d pulls the water so that the height of the sealing water does not fall below the lower limit height. Since intake water having an instantaneous flow rate equal to the instantaneous flow rate of water is returned, sealing failure can be prevented more reliably.

Further, in the present embodiment, a circulation path (intake pipe 503 d, a bending portion 508 d, and an intake pipe configured to be capable of circulating intake water between the bowl portion 20 d or the drainage trap pipeline 40 d and the temporary storage tank 50 d). A line 507d, a return line 504d, a return line 509d, a return line 510d, and a return line 511d).

With this circulation path, the drawn-in water drawn by the drawing-in pump 505d from the stored water WS of the drainage trap pipeline 40d is sent to the temporary storage tank 50d, and is returned to the bowl portion 20d or the drainage trap pipeline 40d by the return pump 506d. You will be returned. Therefore, even if the intake water is excessively supplied by the intake pump 505d, the intake water can be returned by the return pump 506d without excessively staying in the temporary storage tank 50d. Therefore, the performance of the stored water utilization mechanism can be exhibited without putting a burden on the temporary storage tank 50d more than necessary.

In addition, since the drawing-in pump 505d constituting the drawing-in means and the feedback pump 506d constituting the return means are provided independently, the operation of the drawing-in pump 505d suitable for drawing in the drawn water from the reservoir water WS, It is possible to combine with the operation of the feedback pump 506d which is optimal for returning the intake water from the storage tank 50d. Therefore, it is possible to more effectively function the stored water utilization mechanism that draws a portion of the stored water WS from the drainage trap pipeline 40d as suctioned water and returns the drawn suctioned water to the bowl portion 20d or the drainage trap pipeline 40d. it can.

Also, in the circulation path, after the return pump 506d is driven, water passing through the bowl portion 20d or the drainage trap pipeline 40d does not flow back through the

feedback pipelines

504d, 509d, 510d, and 511d into the temporary storage tank 50d. Means to prevent backflow.

Since the

return pipelines

504d, 509d, 510d, and 511d are provided for guiding the intake water from the temporary storage tank 50d to the bowl portion 20d or the drainage trap pipeline 40d, the inside of the temporary storage tank 50d and the drainage trap pipeline 40d are communicated. There is a possibility of When the temporary storage tank 50d communicates with the drainage trap pipeline 40d, when the water level on the drainage trap pipeline 40d side is higher than the water level in the temporary storage tank 50d, the water on the drainage trap pipeline 40d side is There is a risk of backflow into the temporary storage tank 50d. Therefore, by providing a backflow prevention means so that the water passing through the bowl portion 20d or the drainage trap pipeline 40d does not backflow the

return flow paths

504d, 509d, 510d, and 511d, the backflow of the waste water to the temporary storage tank 50d is assured. It is preventing.

The backflow prevention means is directed to the return pipe 510d, which is the first return part connected to the return pipe while descending from the top to the temporary storage tank 50d, and from the top to the bowl portion 20d or the drainage trap pipe 40d. And the flow path cross-sectional lower end β at the top is formed at a position higher than the flow path cross-sectional lower end α at the top of the rising pipe 402 d And, after driving of the feedback pump 506d, a bent portion constituted by the feedback line 510d (first feedback portion) and the feedback line 511d (second feedback portion) with the uppermost portion interposed therebetween. The backflow to the temporary storage tank 50d is prevented by introducing air to the (see FIG. 26).

The water level rises to the highest position in the present embodiment at the top of the uplift line 402d. Therefore, by forming the lower end β of the flow passage cross section at the top of the return conduit at a position higher than the lower end α of the flow passage cross section at the highest end of the rising conduit 402d, the bend formed at the highest end of the return conduit In the section, it is possible to cut off the side of the return line 510d (first return portion) by air and the side of the return line 511d (second return portion). Therefore, the backflow to the temporary storage tank 50d of sewage can be prevented reliably.

Further, in the present embodiment, the drive of the feedback pump 506d is continued even after water passing through the feedback line is discharged from the temporary storage tank 50d so as to exert the effect of the backflow prevention means, and the continuous drive of the feedback pump 506d is performed. Air is introduced into the bent portion (see FIGS. 29 and 30).

As described above, since the air is introduced into the bending portion by continuing the driving of the feedback pump 506d even after the water passing through the return conduit from the temporary storage tank 50d is discharged, a means for introducing the air into the bending portion is separately provided. The backflow prevention means can be configured without providing it. Therefore, the flush toilet apparatus CSd can be miniaturized with a simple configuration.

Further, when returning the intake water from the temporary storage tank 50d to the bowl portion 20d or the drainage trap pipeline 40d, the intake water stored in the temporary storage tank 50d is pushed out and flowed so as to exert the effect of the backflow prevention means. Thus, the backflow to the temporary storage tank 50d is prevented by returning the water of the return line 511d (the second return part), the air of the bent portion, and the intake water of the return line 510d (the first return part) in this order. doing.

As described above, the air, which is a compressible fluid, is compressed by sandwiching the water between the water in the feedback line 511d (the second return part) and the intake water in the feedback line 510d (the first return part) to wash away the air. It returns to the drainage trap pipeline 40d in a state. Therefore, the pressurized air can flush the waste downstream, and the discharge effect of the waste can be enhanced.

Further, in the present embodiment, the suction pump 505d is for drawing in a part of the stored water WS as suction water from the rising pipe line 402d, and drawing in the suction water while suppressing suction of the dirt present in the rising pipe line 402d. Is configured as.

In this embodiment, since a part of the stored water WS is drawn in as the drawn-in water, if the dirt in the stored water is drawn with the water, the drawing pipe line 503d narrows and is blocked, or the inside of the temporary storage tank 50d becomes dirty. There is a fear. Therefore, by constructing the drawing-in means so as not to suck in the filth present in the rising pipe line 402d, it is possible to prevent the blockage of the drawing pipe line 503d and to suppress the filth from entering the temporary storage tank 50d. be able to.

In this embodiment, for the purpose of this suppression, the stored water is drawing in the intake water from the rising conduit 402d at a position above the height at which the sealed water can be formed in the drainage trap conduit 40d.

It is also assumed that the dirt travels from the bowl portion 20d side to the drainage trap pipeline 40d and penetrates up to the ascending pipeline 402d. Therefore, by configuring the drawing water to be drawn in from the stored water at a position higher than the height at which sealing water can be formed in the rising pipe line 402d, it is possible to reliably suppress the drawing of the waste.

Further, the lead-in pipe 503d is connected from the side to the drainage trap pipe 40d from the side so as to penetrate the plane PLa along which the drainage trap pipe 40d bends, and communicates the drainage trap pipe 40d with the temporary storage tank 50d. The drawn water is drawn from the drainage trap pipe 40d into the temporary storage tank 50d through the lead pipe line 503d.

In the present embodiment, the drainage trap pipeline 40d is formed from the upstream side to the downstream side while being bent to form sealing water. At the intersection of the bent surface PLa and the drainage trap pipeline 40d, the water flowing through the drainage trap pipeline 40d tends to go outward. Therefore, by providing the lead-in pipe 503d so as to lead from the side into the drain trap pipe 40d from the side so as to penetrate the plane PLa along which the drain trap pipe 40d bends, the lead-in water is drawn from the stored water. The configuration is such that it is difficult to pull in the filth (see FIG. 18).

In addition, the intake conduit 503d is connected to the drainage trap conduit 40d so that the intake conduit 503d immediately after branching from the drainage trap conduit 40d is directed toward the upstream side of the drainage trap conduit 40d (see FIG. 19).

The dirt flowing through the drainage trap pipeline 40d flows from the upstream side, which is the bowl portion 20d side of the drainage trap pipeline 40d, toward the downstream side. Therefore, by connecting the intake conduit 503d to the drainage trap conduit 40d so as to face the upstream side, the direction in which the intake conduit 503d draws the intake water can be made opposite to the direction in which the waste flows. It is possible to more reliably suppress the withdrawal of the filth.

Further, in the present embodiment, after the bowl portion 20d receives the dirt, the flush water supplied to the bowl portion 20d by the flush water supply means is drawn into the temporary storage tank 50d when drained and flows through the drainage trap pipeline 40d. An abnormal intrusion suppression means is provided to suppress

In the present embodiment, the water which the suction pump 505d draws in and uses is a part of the stored water WS. Therefore, if the washing water for draining the waste is also drawn, it becomes an abnormal intrusion which is not originally supposed. If such abnormal entry of washing water is overlooked, there is a concern that the entry of dirt and the reduction of water-saving performance may occur. Therefore, by providing an abnormal intrusion suppressing means, it is suppressed that normal cleaning water intrudes into the stored water utilization mechanism.

Specifically, the flow path resistance of the lead-in pipe line 503 d from the drainage trap pipe line 40 d to the temporary storage tank 50 d is configured to be higher than the flow path resistance of the drainage trap pipe line 40 d. As described above, with the simple configuration in which the flow path resistance of the suction pipe line 503 d is higher than the flow path resistance of the drainage trap pipe line 40 d, abnormal entry of ordinary cleaning water into the suction pipe line 503 d is suppressed. Can.

Further, the lower end of the flow path cross section γ at the top of the lead-in pipe 503 d is formed at a position higher than the lower end α of the flow path cross section at the top of the rising pipe 402 d. With such a configuration, even if normal cleaning water is drawn into the inlet pipe 503d, it can be reliably suppressed that the cleaning water flows into the temporary storage tank 50d.

Further, in the lead-in conduit, a bent portion 508d is formed by the lead-in conduit 503d (first lead-in portion) and the lead-in conduit 507d (second lead-in portion) with the topmost portion interposed therebetween. As described above, by forming the bent portion 508d at the topmost portion, the flow path resistance can be further enhanced, and the inflow of cleaning water to the temporary storage tank 50d can be reliably suppressed.

Further, the topmost portion thereof is provided so as to have substantially the same height as the flush water supply hole 30d formed in the rim portion 202d of the bowl portion 20d, and the inlet conduit 503d (the first inlet portion) is drained from the uppermost portion The inlet conduit 507d (second lead-in portion) is formed as a portion connected downward from the top to the temporary storage tank 50d, while being formed as a portion connected downward to the trap conduit 40d.

Thus, the lead-in conduit 503d (first lead-in portion) is formed as a portion connected downward to the drainage trap pipe, while the lead-in conduit 507d (second lead-in portion) is directed to the temporary storage tank 50d. Since it is formed as a portion connected while falling down, the flow path resistance can be increased by making the angle of the bent portion 508 d a steep angle. Further, by setting the topmost portion to the same height as the rim portion 202d, the position of the temporary storage tank 50d can be lowered, so that the degree of freedom in arrangement can be enhanced.

Further, in the present embodiment, by providing the drawing pump 505d in the middle of the drawing pipe line 503d, the flow path resistance of the drawing pipe line 503d can be further increased, and the drawing of washing water can be suppressed more reliably.

In addition, after the drive of the suction pump 505d is started, the drive is stopped after a predetermined time has elapsed. Thus, the amount of water drawn into the temporary storage tank 50d can be reliably reduced to a predetermined amount by limiting the drive of the suction pump 505d to a predetermined time. Therefore, the stored water in the drainage trap pipeline 40d can be drawn in more than necessary, and the sealing water formed by the stored water can be reliably prevented from being broken.

In addition, the sanitary washing device 70d is provided as sealing water addition means for supplying water separately from the stored water so that the height of the sealing water by driving the suction pump 505d does not fall below the lower limit of the height at which the sealing is broken. .

Thus, since water is supplied by the sanitary washing device 70d as sealing water addition means separately from stored water, even when the stored water is evaporated and the amount of water is reduced, the stored water of a predetermined amount is recovered Can. Therefore, even if the drive time of the suction pump 505d is determined to be a predetermined time, it is possible to reliably prevent the stored water from being drawn in excessively and the sealing water breaking to occur.

Further, since water is supplied separately from the stored water by the sanitary washing device 70d, it is possible to perform additional water injection for preventing breakage without adding a new water supply device.

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. That is, those to which those skilled in the art appropriately modify the design of these specific examples are also included in the scope of the present invention as long as they have the features of the present invention. For example, each element included in each specific example described above and its arrangement, material, conditions, shape, size, and the like are not limited to those illustrated, and can be appropriately changed. Moreover, each element with which each embodiment mentioned above is equipped can be combined as much as technically possible, and what combined these is also included in the scope of the present invention as long as the feature of the present invention is included.

1: opening and closing valve 2: opening and closing valve 10: toilet bowl main body 20: bowl portion 30: flush water supply hole 40: drainage trap pipeline 50: pump 50b: pump 201: dirt receiving surface 202: rim portion 203: bowl outlet portion 301: Water supply valve 401: inlet 402: rising pipeline 403: falling pipeline 501: temporary storage tank 501b: temporary storage tank 502: piston 502b: piston 503: temporary storage flow channel 503a: temporary storage flow channel 503b: suction flow channel 504b : Return flow path 601: Human body detection sensor 602: Operation panel 603: Timer 604: Toilet lid opening / closing mechanism A: Timer a1: Specified time B: Timer CS: Flush toilet bowl device CSa: Flush toilet bowl device CSb: Flush toilet bowl device MB: fouling WP: intake water WS: stored water CSd: flush toilet device 10d: toilet body 20d: bowl portion 30 : Wash water supply hole 40d: Drain trap pipeline 50d: Temporary storage tank 70d: Sanitary washing device 201d: dirt receiving surface 202d: rim section 203d: bowl outlet section 401d: inlet section 402d: rising pipeline 403d: falling pipeline 404d : Suction port 503d: Lead-in pipe (first lead-in part)
504d: return line 505d: inlet pump 506d: return pump 507d: inlet line (second lead-in portion)
508d: bent portion 509d: return line 510d: return line (first return portion)
511d: feedback line (second feedback portion)
701d: Cleaning nozzle

Claims

A flush toilet system that temporarily receives dirt and discharges it with flush water.
A bowl portion having a filth receiving surface for temporarily receiving filth,
Wash water supply means for supplying wash water to the bowl portion;
A drain trap pipe connected to the lower side of the bowl portion to store water when not in use to form stored water, and at least a portion of the stored water forms sealed water;
A stored water utilizing mechanism for drawing a portion of the stored water from the bowl portion or the drainage trap pipeline as inlet water and returning the drawn inlet water to the bowl portion or the drainage trap pipeline;
The said stored water utilization mechanism,
A temporary storage tank that temporarily stores the intake water;
Drawing-in means for drawing in a portion of the stored water as the drawn-in water from the bowl portion or the drainage trap pipe line to the temporary storage tank;
Feedback means for returning the intake water temporarily stored in the temporary storage tank to the bowl portion or the drainage trap pipeline;
And control means for controlling the behavior of the pull-in means and the feedback means,
The control means
After the bowl portion temporarily receives the waste, when the waste is discharged together with the wash water, the draw-in is performed before the waste is at least transported from the drainage trap pipeline by the wash water supplied from the wash water supply means. After driving the means
A flush toilet apparatus characterized in that the return means is driven before the end of the supply of wash water from the wash water supply means.
The amount of the stored water drawn into the temporary storage tank from the drainage trap pipeline by the drawing-in means is an amount that does not break sealing water formed in the drainage trap pipeline. Flush toilet equipment.
The bowl portion is provided with detection means for detecting a state immediately before use before the user excretes the filth,
3. The flush toilet apparatus according to claim 2, wherein the control means drives the pull-in means in response to detection of the state immediately before use by the detection means.
And a toilet lid driving means for driving the toilet lid.
The control means maintains the closed state of the toilet lid until the pull-in means is driven, and controls the toilet lid drive means to open the toilet lid after the pull-in means is driven. The flush toilet apparatus according to claim 3, characterized in that:
3. The flush toilet apparatus according to claim 2, wherein the control means drives the return means based on the supply of wash water from the wash water supply means.
6. The flush toilet apparatus according to claim 5, wherein the control means drives the return means after the supply of wash water from the wash water supply means is started.
The intake water returned from the temporary storage tank to the bowl portion or the drainage trap pipeline is configured to be supplied along the discharge direction of the dirt in the bowl portion or the drainage trap pipeline. The flush toilet apparatus according to claim 6, wherein
The detection means includes a human detection sensor that detects that the user has come to a position corresponding to the state immediately before use;
The control means drives the pull-in means in response to the detection of the user of the human body detection sensor, and then drives the return means in response to the human body detection sensor not detecting the user. The flush toilet apparatus according to claim 3, characterized in that
4. The apparatus according to claim 3, wherein said control means drives said pull-in means in response to detection of the state immediately before use by said detection means, and then drives said return means in response to elapse of a predetermined time. The flush toilet device as described in.
3. The flush toilet apparatus according to claim 2, wherein the control means stops the drive after a predetermined time has elapsed after starting the drive of the pull-in means.
The stored water utilization mechanism has sealed water adding means for supplying water separately from the stored water so that the height of the sealed water due to the drive of the drawing-in means does not fall below the lower limit of the height at which the sealing is broken. The flush toilet apparatus according to claim 10, characterized in that:
The flush toilet apparatus according to claim 1, further comprising a tearing prevention means which does not lower the height of the sealing water formed by the stored water to a level lower than the tearing height even if the drawing means is driven. .
When the drawing-in means draws in the drawn-in water from the stored water, the seal-preventing means is a lower limit value that is the lower limit value of the height at which the height of the sealing water formed by the stored water is to avoid the seal. 13. The flush toilet apparatus according to claim 12, wherein said withdrawal means is configured to regulate so as not to draw in said drawn water from said stored water when it reaches a height.
The drawing means is configured to draw the drawn water from the stored water by a turbo pump,
The seal preventing means forms an air gap between the turbo pump and the stored water when the height of the sealed water reaches the lower limit height, and causes the turbo pump to suck in air. 14. The flush toilet apparatus according to claim 13, wherein the withdrawal means regulates so as not to withdraw the intake water from the stored water.
The stored water utilization mechanism has a lead-in pipe that connects the drainage trap pipe and the temporary storage tank,
The lead-in pipe has an edge cutting structure so as not to connect the lead-in water stored in the temporary storage tank and the lead-in water remaining in the lead-in pipe.
14. The apparatus according to claim 13, wherein when the drawing in of the drawn water from the stored water by the drawing means is stopped, the drawn water remaining in the drawing pipe is returned to the drainage trap pipe. The flush toilet device as described in.
When the drawing-in means continues to draw the drawn-in water into the temporary storage tank,
The return means returns drawn water having an instantaneous flow rate equal to the instantaneous flow rate of the drawn water drawn into the temporary storage tank so that the height of the sealed water does not fall below the lower limit height. The flush toilet apparatus according to claim 12, characterized in that:
The flush toilet apparatus according to claim 1, further comprising a circulation path configured to be able to circulate the intake water between the bowl portion or the drainage trap pipeline and the temporary storage tank. .
The drawing-in means is constituted by a drawing-in pump drawing in the drawn-in water from the stored water,
The return means is constituted by a return pump for returning the suctioned water to the bowl portion or the drainage trap pipeline.
The flush toilet apparatus according to claim 17, wherein the suction pump and the return pump are provided separately.
The circulation route is
A suction pipe line for guiding the suction water from the stored water to the temporary storage tank;
A return line for guiding the intake water from the temporary storage tank to the bowl portion or the drainage trap pipeline;
Backflow prevention means acting to prevent water passing through the bowl portion or the drainage trap pipeline from flowing back into the return pipeline and entering the temporary storage tank after driving the feedback pump. The flush toilet apparatus according to claim 18, wherein the flush toilet apparatus is provided.
The drainage trap pipeline is formed to extend downward from the end of the ascending pipeline, an inlet section connected to the lower side of the bowl section, an ascending pipeline formed to extend upward from the inlet section, and And a downdraft line to be
The backflow prevention means is
A first return portion connected with the return pipe downward from the top to the temporary storage tank, and a second return portion connected with the top from the top to the bowl portion or the drainage trap pipe; And the flow path cross-sectional lower end at the topmost portion is formed at a position higher than the flow path cross-sectional lower end at the topmost portion of the ascending pipeline,
Furthermore, after the drive of the feedback pump, air is introduced into the bending portion formed by the first feedback portion and the second feedback portion across the topmost portion, thereby preventing backflow to the temporary storage tank The flush toilet apparatus according to claim 19, which is characterized in that:
The backflow prevention means continues driving of the feedback pump even after water passing through the feedback line from the temporary storage tank is discharged, and introducing air into the bending portion by continuous driving of the feedback pump. 21. The flush toilet apparatus according to claim 20, characterized in that:
The drainage trap pipeline is formed to extend downward from the end of the ascending pipeline, an inlet section connected to the lower side of the bowl section, an ascending pipeline formed to extend upward from the inlet section, and And a downdraft line to be
The drawing-in means is a part for drawing in a portion of the stored water as drawing-in water from the rising pipe, and is characterized in drawing the drawing-in water while suppressing the suction of dirt present in the rising pipe. The flush toilet apparatus according to claim 1.
23. The water washing according to claim 22, wherein the drawing-in means draws the drawn-in water from the rising pipe above the height at which the stored water can form the sealed water in the drainage trap pipe. Toilet bowl device.
The stored water utilization mechanism is connected to the inside of the drainage trap pipeline from the side so as to penetrate the surface along which the drainage trap pipeline bends while being bent, and is a drawing-in pipe connecting the drainage trap pipeline and the temporary storage tank. The flush toilet apparatus according to claim 23, further comprising a passage through which the suctioned water is drawn from the drainage trap pipe into the temporary storage tank through the lead-in pipe.
An abnormality that prevents the washing water supplied by the washing water supply means to the bowl after the bowl part receives the dirt from entering the temporary storage tank when it is drained and flows through the drainage trap pipeline The flush toilet apparatus according to claim 1, further comprising an intrusion control means.
The abnormal entry suppressing means is characterized in that the flow path resistance of the lead-in pipe extending from the drainage trap pipe to the temporary storage tank is higher than the flow path resistance of the drainage trap pipe. The flush toilet apparatus according to claim 25.
The drainage trap pipeline is formed to extend downward from the end of the ascending pipeline, an inlet section connected to the lower side of the bowl section, an ascending pipeline formed to extend upward from the inlet section, and And a downdraft line to be
The flush toilet apparatus according to claim 25, wherein the lower end of the flow passage cross section at the top of the lead-in conduit is formed at a position higher than the lower end of the flow passage cross section at the highest end of the rising conduit. .
28. The flush toilet apparatus according to claim 27, wherein a bent portion is formed by the first lead-in portion and the second lead-in portion sandwiching the topmost portion in the lead-in conduit.