JP2019060160A - Toilet bowl device - Google Patents

Abstract

To provide a toilet bowl device capable of suppressing adhesion of dirt in a bowl part, and suppressing splashing of dirt being crashed from a puddle water surface to the outside of the bowl part.SOLUTION: A toilet bowl device 1 comprises: a bowl part 10 formed with a puddle water surface of stored puddle water, and provided with a dirt reception surface for receiving dirt; a crushing device 18 provided at the lower part of the bowl part for crushing the dirt in the bowl part; an exhaust passage 12 communicating with the bowl part; an exhaust device 20 for exhausting wash water in the bowl part to a downstream side; and a control part 24 for controlling the crushing device and the exhaust device. The control part 24 is configured such that a water level lowering mode for driving the exhaust device to lower a puddle water surface in the bowl part and a dirt crushing mode for crushing the dirt in the bowl part are executable, and the control part 24 executes the dirt crushing mode after executing the water level lowering mode.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a toilet bowl device, and more particularly to a toilet bowl device for crushing and discharging waste.

  As shown to patent document 1, what provided the stirring mechanism in the bottom part in the toilet bowl main body as a toilet apparatus for cares is known. In such a toilet apparatus, the stirring mechanism rotates at the bottom in the toilet body to stir the waste and the drainage water, and the whole of the dirt and the drainage water is discharged in a uniform flow state.

JP 2000-8442 A

In such a toilet apparatus as described in Patent Document 1, the height of the reservoir surface is increased as much as possible in order to reduce the adhesion of dirt to the dried bowl surface and to prevent the dirt from remaining on the bowl surface. There is a demand to make the reservoir surface large.
However, in the case of the toilet apparatus as disclosed in Patent Document 1, in order to form a large reservoir surface in the bowl surface, it is necessary to raise the water level of the reservoir surface. When the water level on the stored water surface is raised, if the waste and the drainage water are stirred by the stirring mechanism to stir the waste, there is a concern that the waste may be splashed out of the toilet body during the stirring.
Furthermore, when the water level of the reservoir surface rises, and the dirt is stirred in a state where the reservoir water surface in the bowl surface is largely formed, it is possible to see that the dirt is being crushed in a relatively wide area in top view There is also a risk of giving the person a feeling of discomfort or aversion.

  Therefore, the present invention has been made to solve the above-described problems, and can suppress the adhesion of dirt in the bowl portion and can suppress the splashing of the dirt during grinding from the water surface of the stagnation to the outside of the bowl portion. It aims at providing the toilet bowl device which can be done.

In order to achieve the above-mentioned object, the present invention is a toilet bowl device which smashes and discharges a filth, wherein a bowl surface of a stored reservoir water is formed and provided with a filth receiving surface for receiving the filth, A crusher provided at a lower portion of the bowl portion and crushing waste in the bowl portion, a discharge passage communicating with the bowl portion, a discharge device discharging the wash water in the bowl portion downstream, and the crusher And a control unit for controlling the discharge device, the control unit driving the discharge device to lower the level of the accumulated water in the bowl portion, and a waste water pulverizing method for crushing waste in the bowl portion The control unit is configured to execute the filth crushing mode after the execution of the water level lowering mode.
In the present invention configured as described above, after the stored water level in the bowl portion is lowered by the execution of the water level lowering mode, the soil is crushed in the bowl by the execution of the soil crushing mode. As a result, when drained by the user, the reservoir surface in the bowl portion can be made high and wide to prevent the adhesion of dirt to a dry portion other than the reservoir surface in the bowl portion, and also, in the bowl portion, when dirt is crushed. It is possible to reduce the level of the reservoir water and to suppress the splashing of the waste material from the reservoir surface during grinding to the outside of the bowl.

In the present invention, preferably, the waste receiving surface of the bowl portion is formed in a mortar shape.
In the present invention configured as described above, the bowl portion is formed in a mortar shape, so that the reservoir surface in the bowl portion is lowered and the area of the reservoir surface in top view is reduced by execution of the water level lowering mode. Therefore, according to the present invention, it is possible to further suppress the splashing of the dirt during grinding from the surface of the reservoir to the outside of the bowl and to reduce the area of the surface of the reservoir where the dirt during grinding can be seen. It can suppress the possibility of giving disgust.

In the present invention, preferably, the bowl portion is formed with a cylindrical portion extending in the vertical direction from the lower portion of the waste receiving surface, and the control portion executes the water level lowering mode to save the water surface in the bowl portion. Is reduced to the above cylindrical portion.
In the present invention configured as described above, the control unit lowers the surface of the stored water in the bowl portion to the cylindrical portion by execution of the water level reduction mode. Thereby, in the state where the reservoir water surface is positioned in the cylindrical portion where the flow path diameter in top view does not substantially change, it is possible to pulverize the dirt in the reservoir water. Therefore, according to the present invention, even if the water surface is shaken due to the crushing of the soil, the radial variation of the water surface can be reduced in top view, and the water surface including the soil during the crushing spreads and appears to the user Can reduce the possibility of giving disgust.

In the present invention, preferably, the bowl portion is further provided with a water supply device for supplying washing water, and the control unit further executes a washing mode for washing the bowl portion with the washing water supplied by the water supply device. The control unit executes the water level lowering mode after the execution of the cleaning mode.
In the present invention configured as described above, the bowl portion is cleaned by executing the cleaning mode, and the dirt adhering to the inside of the bowl portion is allowed to flow downward, and then the water level in the bowl portion is lowered by executing the water level lowering mode. . As a result, the dirt adhering to the inside of the bowl portion can be efficiently collected in the reservoir water lowered by the execution of the water level lowering mode, and the dirt inside the bowl portion can be efficiently crushed.

In the present invention, preferably, the control unit is further configured to be able to execute a discharge mode for driving the discharge device to discharge wash water in the bowl portion to the downstream side, and the control unit is configured to crush the filth After the execution of the mode, the discharge mode is performed, and the flow rate per unit time discharged by the discharge device in the water level lowering mode is smaller than the flow rate per unit time discharged by the discharge device in the discharge mode.
In the present invention configured as described above, the flow rate per unit time discharged by the discharge device in the water level reduction mode is smaller than the flow rate per unit time discharged by the discharge device in the discharge mode. As a result, in the water level lowering mode, the washing water is discharged from the bowl portion with a drainage capacity lower than the drainage capacity in the drainage mode performed after the smashing of the waste. Therefore, according to the present invention, it is possible to suppress the possibility that the uncrushed waste in the bowl portion intrudes into the discharge passage in the water level reduction mode and clogs the discharge device.

In the present invention, preferably, the above-mentioned pulverizing apparatus forms a swirling flow in the above-mentioned bowl portion by rotation of a part of itself, and the above-mentioned control unit drives the above-mentioned pulverizing apparatus during execution of the above-mentioned water level lowering mode. Let
In the present invention configured as above, when the control unit drives the pulverizing device while the water level lowering mode is being performed, the water level of the reservoir surface in the bowl portion gradually decreases while the water level lowering mode is being performed. A swirling flow is formed in the stored water, and the waste in the stored water can be guided downward while being placed on the flow of the swirling flow, so that the waste can not easily be left along the bowl portion. Therefore, after completion of execution of the water level lowering mode, it is possible to suppress the waste from remaining in the bowl part, to improve the cleaning performance in the bowl part and to crush the waste in the bowl part more efficiently.

In the present invention, preferably, the above-mentioned pulverizing apparatus forms a swirling flow in the above-mentioned bowl portion by a partial rotation of itself, and the above-mentioned control unit further drives the above-mentioned pulverizing apparatus to A suction swirl flow formation mode for forming a swirl flow is configured to be executable, and the control unit executes the water level reduction mode after the suction swirl flow formation mode is performed.
In the present invention thus configured, the control unit executes the water level lowering mode after the execution of the suction swirl flow formation mode. As a result, a suction swirling flow is formed in the bowl portion, and execution of the water level lowering mode can be started in a state in which the dirt along the bowl portion is peeled off from the bowl portion to some extent. Therefore, according to the present invention, after completion of execution of the water level lowering mode, it is possible to suppress the waste from being left above the water surface which drops in the bowl portion, and to smash the waste in the bowl portion more efficiently.

In the present invention, preferably, the discharge device is a discharge pump.
In the present invention configured as described above, since the waste can be pressurized by the discharge pump and discharged, the diameter of piping such as the discharge passage through which the waste and the washing water flow can be reduced, and the toilet device is disposed. It can be easy to do.

In the present invention, preferably, the apparatus further comprises a water level detection device for detecting the water level in the bowl portion, and the control portion controls the water level in the bowl portion to a predetermined water level after the water level detection device starts. In the present invention configured as described above, the control unit causes the water level detection device to operate within the bowl to a predetermined water level after the start of the water level reduction mode. When the water level drop is detected, the execution of the water level reduction mode is ended. Therefore, according to the present invention, the water level in the bowl can be reliably lowered to a predetermined water level by the water level detection device, and splashing of the waste during grinding from the water surface of the waste to the outside of the bowl can be further suppressed. be able to. Therefore, it is possible to more reliably achieve both suppression of the adhesion of the soil at the time of excretion and the suppression of the jumping to the outside of the bowl portion at the time of the soil crushing.

In the present invention, preferably, a flexible conduit connected to the downstream side of the discharge passage is further provided, and the toilet bowl device is movably formed.
In the present invention configured as described above, when the toilet bowl device is formed to be movable, depending on the installation situation of the toilet bowl device, the reverse slope (flexible duct) is connected to the flexible conduit connected downstream of the discharge channel. There is a risk that the building piping downstream of the sex pipeline will be higher). When a reverse gradient occurs in the flexible conduit, it causes a pressure drop. In addition, increase in pipe length in a flexible conduit, pipe bend, and the like also become factors of pressure loss. Due to such a pressure drop factor, there is a risk that the increased amount of accumulated water due to urination and the like can not be discharged from the flexible pipeline to the building piping side, and the water that can not be discharged to the building piping side returns to the bowl portion Water level may rise. Therefore, according to the present invention, even in the movable toilet bowl device, the control unit is provided with the water level lowering mode so that the water surface in the bowl portion is lowered at the time of waste crushing and the water surface of the waste being crushed is Jumping out of the bowl can be suppressed. Furthermore, according to the present invention, when excreted by the user, the reservoir water surface in the bowl portion can be made high and wide to prevent the adhesion of dirt to a dry portion other than the reservoir water surface in the bowl portion, and dirt At the time of pulverization, the surface of the reservoir water in the bowl portion can be lowered to suppress the splashing of the waste material during the pulverization from the surface of the reservoir water to the outside of the bowl portion.

In the present invention, preferably, the discharge passage further comprises a vent valve for taking in air from the outside of the discharge passage, the discharge passage being a rising portion rising to form a drainage trap, and the elevation of the drainage trap The venting valve is closed when the pressure on the discharge passage side is equal to or higher than the atmospheric pressure, and the discharge passage side has a pressure higher than the atmospheric pressure. When the first negative pressure area pressure is lower than the valve opening pressure, the valve is closed. When the discharge path side is the second negative pressure area pressure less than the valve opening pressure, the valve is opened. The connecting portion between the vent valve and the discharge passage is at a height higher than the sum of the water level at the start of the waste crushing mode in the bowl portion and the opening pressure head of the vent valve. It is provided.
In the present invention configured as described above, the vent valve is in the closed state when the discharge passage side is the first negative pressure region pressure lower than the atmospheric pressure and higher than the valve opening pressure, and the discharge passage side is the valve opening pressure or less. In the case of the second negative pressure region pressure, the valve opens. That is, the pressure at which the vent valve is closed is lower than the atmospheric pressure. Therefore, when the vent valve takes air into the discharge path and the vent valve is closed so that the pressure of the flush water in the bowl and the pressure of the flush water in the drain are balanced, the fluid is drained more than the water level in the bowl. The water level in the road is higher by the opening pressure head of the vent valve. Here, if the water level in the bowl portion is to be set to the water level at the start of a predetermined filth crushing mode, the connecting portion between the vent valve and the discharge path needs to be provided at a position higher than the water level in the discharge path. There is. Therefore, according to the present invention, the connecting portion between the vent valve and the discharge passage is at a height higher than the height at which the opening pressure head of the vent valve is added to the water level at the start of the waste crushing mode in the bowl portion. It is provided. Thereby, the water level at the start of the filth crushing mode in the bowl portion can be set. Therefore, according to the present invention, it is possible to set the water level at the start of the filth crushing mode in the bowl portion and to smash the filth in the bowl portion surely.

In the present invention, preferably, the height of the water level in the bowl portion when the driving of the discharge device is stopped in the water level lowering mode is lower than the height of the water level at the start of the waste crushing mode.
In the present invention configured as described above, the water level in the discharge channel when the execution of the water level lowering mode ends and the siphon phenomenon ends becomes higher than the water level in the bowl portion. However, since this state is an unstable state because there is a pressure difference between the pressure in the discharge path and the pressure acting on the bowl portion, the pressure in the discharge path and the atmospheric pressure acting on the bowl portion The water level in the discharge path gradually falls while the water level in the bowl rises, until it is balanced. Thus, the water level at the start of the filth crushing mode is higher than the water level at the end of the execution of the water level reduction mode. Therefore, according to the present invention, the height of the water level in the bowl portion when the driving of the discharge device is stopped in the water level lowering mode is lower than the water level height at the start of the filth crushing mode. Thus, the water in the discharge passage at the end of the water level reduction mode can be made to flow into the space in the bowl portion surrounded from the water level height at the end of the water level reduction mode to the water level height at the start of the waste crushing mode. Therefore, according to the present invention, the height of the water level in the bowl at the start of the waste crushing mode is higher than when the water level at the end of the water reduction mode is set to the water height at the start of the waste crushing mode. It is possible to reduce the height of the bowl, and to further suppress the splashing of the waste material from the water surface of the ground during grinding to the outside of the bowl portion.

In the present invention, preferably, a volume in the bowl portion from the height of the water level in the bowl portion when the driving of the discharge device is stopped in the water level lowering mode to the height of the water level at the start of the filth crushing mode is It is equal to the volume in the discharge path from the height of the connecting portion to the height obtained by adding the opening pressure head of the vent valve to the height of the water level at the start of the waste crushing mode.
In the present invention configured as described above, the volume in the bowl portion from the height of the water level in the bowl portion when the operation of the discharge device is stopped in the water level lowering mode to the height of the water level at the start of the filth crushing mode is It is equal to the volume in the discharge path from the height of the connecting part to the height obtained by adding the opening pressure head of the vent valve to the level of the water level at the start of the smashing mode. Therefore, according to the present invention, it is possible to set the height of the water level in the bowl portion at the start of the filth crushing mode, and the filth can be surely crushed in the filth crushing mode. Further, according to the present invention, the degree of freedom in the position of the connecting portion between the vent valve and the discharge path can be increased, so that the degree of freedom in the design of the toilet bowl device can be created.

  ADVANTAGE OF THE INVENTION According to the toilet bowl device of this invention, while being able to suppress the filth adhesion | attachment in a bowl part, it can suppress the splashing from the reservoir surface of the filth during grinding | pulverization to the bowl part outside.

BRIEF DESCRIPTION OF THE DRAWINGS It is the whole perspective view which looked at the portable toilet apparatus by 1st Embodiment of this invention from the back diagonally upward. 1 is a cross-sectional view of a portable toilet device according to a first embodiment of the present invention. It is sectional drawing which shows the valve closing state of the ventilation valve of the portable toilet apparatus by 1st Embodiment of this invention. It is sectional drawing which shows the valve open state of the ventilation valve of the portable toilet apparatus by 1st Embodiment of this invention. It is a figure which shows the pressure | voltage of the 1st chamber by the side of a drainage trap pipe line, and the response | compatibility of the valve closing state or valve opening state of the vent valve about the vent valve of the portable toilet apparatus by 1st Embodiment of this invention. It is a time chart which shows the change of the water level in the water supply part of the portable toilet apparatus by 1st Embodiment of this invention, a rotary body, a discharge pump, and the bowl part. FIG. 3 is a view showing a state in which a bowl portion cleaning mode is executed in the portable toilet apparatus shown in FIG. 2; The portable toilet apparatus shown in FIG. 2 WHEREIN: It is a figure which shows the state in which the suction rotational flow formation mode which makes a rotational flow form in a bowl part is performed. The portable toilet apparatus shown in FIG. 2 WHEREIN: It is a figure which shows the state in which the water level fall mode which lowers the stored water surface in a bowl part is performed. The portable toilet apparatus shown in FIG. 2 WHEREIN: It is a figure which shows the state in which the filth grinding | pulverization mode which grind | pulverizes a filth in a bowl part is performed. The portable toilet apparatus shown in FIG. 2 WHEREIN: It is a figure which shows the state by which the discharge mode which discharges the wash water and the filth in a bowl part downstream is performed. The portable toilet apparatus shown in FIG. 2 WHEREIN: It is a figure which shows the state by which the stored water formation mode which forms stored water in a bowl part is performed. FIG. 9 is a view showing the state of flush water and the like in the bowl portion and the drainage trap pipeline immediately after the driving of the discharge pump is stopped in the water level lowering mode in the portable toilet device shown in FIG. 2. The portable toilet apparatus shown in FIG. 13 is a figure which shows the state which a ventilation valve introduces air in a drainage trap pipeline immediately after stopping a drive of a discharge pump in water level fall mode. FIG. 15 is a view showing the portable toilet apparatus shown in FIG. 14 in which the vent valve further introduces air into the drainage trap pipeline. FIG. 16 is a view showing the portable toilet apparatus shown in FIG. 15 in which the vent valve is closed so that the pressure of the flush water in the bowl portion and the pressure of the flush water in the drainage trap pipeline are balanced. It is a figure which shows the modification of the water level detection apparatus of the portable toilet apparatus shown in FIG. It is a figure which shows the modification which applied the vacuum drainage apparatus instead of the discharge pump of the portable toilet apparatus shown in FIG. It is a figure which shows the modification which applied the turn trap apparatus instead of the discharge pump of the portable toilet apparatus shown in FIG. It is the whole perspective view which looked at the toilet bowl device by a 2nd embodiment of the present invention from the back slanting upper part. It is a sectional view showing the toilet bowl device by a 2nd embodiment of the present invention. It is a time chart which shows the change of the water level in the water supply part of the toilet bowl device by the 2nd embodiment of the present invention, a rotating body, a discharge pump, and the bowl part.

  A portable toilet device according to a first embodiment of the present invention will now be described with reference to the accompanying drawings. First, the overall structure of a portable toilet device according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

  As shown in FIG. 1, the portable toilet device 1 according to the first embodiment of the present invention is a flush type toilet device that can be disposed in a place other than a toilet, and it is a detached house, an elderly facility or a hospital etc. In the above, the toilet apparatus is used as a toilet apparatus disposed in a place other than a normal toilet space, for example, in the room of a user for nursing care, the bedside in a bedroom, or the like. It is a flush type toilet bowl device that can be used in the living room for the elderly and ill people who have difficulty walking to the bathroom or feel relatively burdened.

  The portable toilet device 1 includes a toilet body 2, a water supply unit 4 which is a water supply device for supplying flush water to the toilet body 2, and a frame 6 for supporting the toilet body 2.

  In addition, the portable toilet device 1 is a movable non-stationary device. In the portable toilet device 1, the frame base 6a of the frame 6 is not fixed to the floor surface F on which the toilet body 2 etc. is installed, and is formed movable by the user or the operator using the wheels 1a etc. ing.

  As shown in FIG. 2, the water supply unit 4 is connected to the water supply facility on the building Q side via a flexible water supply pipe 8. The water supply unit 4 is provided at the rear upper portion of the toilet body 2 and supplies wash water to the bowl unit 10 from a water discharge port 10 c formed in the bowl unit 10. The water supply unit 4 may be of a tank type that supplies washing water from a water storage tank. The water supply pipe 8 is formed by a water supply hose or the like.

  The toilet body 2 has a bowl portion 10 provided on the front side of the toilet body 2 and a drainage trap pipe which is provided in communication with the bottom portion of the bowl portion 10 and discharges the dirt with the flush water. A channel 12 and a reservoir 14 formed below the bowl portion 10 are provided.

  The bowl portion 10 is provided with a bowl-shaped waste receiving surface 10d opened upward. The waste receiving surface 10d is formed in a mortar shape, and decreases as the area inside the waste receiving surface 10d of the horizontal cross section descends. In the bowl portion 10, a cylindrical portion 10a extending in the longitudinal direction from the lower portion of the waste receiving surface 10d is formed. The cylindrical portion 10a is formed so that the flow passage diameter (cross-sectional area diameter) in top view is substantially unchanged and constant. The cylindrical portion 10a forms a relatively short flow path extending in the vertical direction. In the bowl portion 10, a reservoir portion 14 for storing the reservoir water is formed so as to form a reservoir surface W0 (a reservoir surface in a standby state) below the bowl portion 10 before the start of cleaning. The reservoir surface W0 of the stored reservoir water is formed on the waste receiving surface 10d. The reservoir portion 14 forms an L-shaped reservoir portion extending rearward from the lower portion of the bowl portion 10. At the time of crushing the waste water, the reservoir water portion 14 is in a state where the cleaning water is stored at a portion extending downward and rearward from the reservoir water surface W0.

  The cylindrical portion 10 a of the bowl portion 10 is provided with a water level detection device 13 that detects the water level in the bowl portion 10. The water level detection device 13 is electrically connected to the control unit 24 and transmits the water level information to the control unit 24. The water level detection device 13 can detect a drop in the water level in the bowl portion 10 from the water level of the reservoir water surface W1 described later to a predetermined water level corresponding to the reservoir water surface W2. For example, the water level detection device 13 can determine that the water level has dropped below the predetermined water level corresponding to the reservoir surface W2. The water level detection device 13 may detect a drop in water level up to the upper or lower portion in the cylindrical portion 10a. The water level detection device 13 is a noncontact capacitance type sensor. The water level detection device 13 may be, for example, a non-contact type microwave sensor.

  The drainage trap pipeline 12 descends from the connecting portion 12a connected to the bottom surface of the bowl portion, the rising portion 12b rising to form a drainage trap, the top portion 12c connecting to the rising portion 12b of the drainage trap, and the top portion 12c. A descending portion 12d and a lateral portion 12e slightly above the floor F and substantially parallel to the floor F are provided. Thus, the drainage trap pipeline 12 forms a convex drainage trap structure by at least the rising portion 12 b and the top portion 12 c. The top 12 c forms a convex-shaped folded portion such that the bottom of the top 12 c is formed as a flat surface. The height of the top of the bottom of the top 12 c is the height of the reservoir surface W 0 of the initial water level of the bowl portion 10.

  A drainage pipe line 16 is connected to the horizontal direction portion 12 e on the downstream side of the drainage trap pipe line 12. The drainage trap pipeline 12 and the drainage pipeline 16 are formed by relatively thin piping in order to make the portable toilet device 1 movable. The inner diameter (piping diameter) of the horizontal direction portion 12e of the drainage trap pipeline 12 is preferably in the range of 10 mm to 50 mm, and more preferably 20 mm. The drainage line 16 has a flexible line portion 16a. A flexible conduit portion 16 a, which is a flexible conduit, is connected to the downstream transverse portion 12 e of the drainage trap conduit 12. The flexible conduit portion 16a is formed by a flexible member such as a drainage hose. The drainage pipe line 16 also includes a drainage pipe 16b provided on the building side. The inner diameter of the flexible conduit portion 16a is preferably in the range of 10 mm to 50 mm, more preferably 20 mm. The drainage pipe 16b on the building Q side of the drainage pipe 16 has an inner diameter of the pipe that extends continuously from the side portion 12e or the flexible pipe portion 16a and is substantially the same as the flexible pipe portion 16a. The piping of the part where the continues is included. The drainage piping 16b on the building Q side includes piping whose inner diameter is in the range of 10 mm to 50 mm. The downstream end of the drainage pipe 16b on the building Q side is connected to the equipment pipe S on the building Q side having a wider inside diameter than the pipe 16b.

  The portable toilet device 1 further includes a crushing device 18 for crushing waste in the bowl portion 10, a discharge pump 20 which is a discharge device for discharging washing water in the bowl portion 10 to the downstream side, a crushing device 18 and a discharge pump A filter 22 provided between them and 20, an operation unit (not shown) operated by the user, and a control unit 24 for controlling the cleaning operation and the crushing and feeding operation of the portable toilet device 1 are provided.

  The grinding device 18 grinds the waste by forming a swirling flow (rotational flow) in the bowl portion 10 by rotation of a part of itself. The pulverizing device 18 is provided on the lower side behind the bowl portion 10 and on the upper side of the reservoir portion 14. The pulverizing device 18 is disposed in the reservoir water stored in the reservoir portion 14 and generates a rotational flow in the reservoir portion 14 so as to crush the waste, and a rotation shaft of the rotator 26 28 and an electric motor 30 for driving the rotating body 26 and the rotating shaft 28.

  The drainage pump 20 is disposed upstream of the drainage trap structure of the drainage trap pipeline 12. The discharge pump 20 forms a centrifugal pump whose lift can be realized. The drainage pump 20 pumps the dirt crushed in the reservoir 14 together with the washing water and drains it to the facility piping S via the drainage trap pipe line 12 and the drainage pipe line 16. The discharge pump 20 includes a pump chamber 32, an impeller 34 rotated inside the pump chamber 32, a rotation shaft 36 of the impeller 34, and an electric motor 38 for driving the impeller 34 and the rotation shaft 36.

  A connection 12a extending from the lower portion of the filter 22 of the reservoir 14 is connected to the inlet of the central portion of the pump chamber 32, and a rising portion 12b is connected to the outer peripheral portion of the upper portion of the pump chamber 32. The centrifugal force generated by the rotation of the impeller 34 causes dirt and wash water to be relatively strongly pushed out and pumped from the pump chamber 32 toward the drain trap line 12.

  The filter 22 is disposed on the bottom surface of the reservoir 14 and passes only the filth that has been crushed to a size smaller than a predetermined size.

  The control unit 24 controls the water supply unit 4, the crusher 18, and the discharge pump 20 according to the operation of the operation unit by the user or the setting of the control unit 24. The control unit 24 incorporates a CPU, a memory, and the like for performing these controls. The control unit 24 is electrically connected to the water supply unit 4, the crushing device 18, the discharge pump 20 and the like, sends an operation signal to these devices and the like, and operates the devices and the like.

  The control unit 24 has a standby mode in which the water supply unit 4, the rotating body 26, and the discharge pump 20 are in a standby state, a water level reduction mode in which the stored water in the bowl unit 10 is lowered by driving the discharge pump 20, and the bowl unit 10. A dirt crushing mode for crushing dirt inside, a wash mode for washing the bowl portion 10 with wash water supplied by the water supply unit 4, and a discharge pump 20 are driven to discharge wash water in the bowl portion 10 to the downstream side A control program capable of executing a discharge mode to be set, a suction swirl flow formation mode to form a swirling flow in the bowl portion 10 by driving the crushing apparatus 18, and a stored water formation mode to form stored water in the bowl portion 10 Is equipped. The control unit 24 further includes a control program capable of executing other operations described later.

Next, the vent valve 40 of the portable toilet device 1 will be described with reference to FIG.
The portable toilet device 1 further includes a vent valve 40 for taking air into the drainage trap pipe 12 from the outside of the drainage trap pipe 12. The vent valve 40 is disposed at the top 12 c of the drainage trap pipe 12 downstream of the drainage pump 20. In order to take in air from the outside of the drainage trap pipeline 12 into the drainage trap pipeline 12, not only the outside air is taken into the drainage trap pipeline 12 from the drainage trap pipeline 12 side, but drainage into the drainage trap pipeline 12 is also possible. It also includes taking in external air from the pipe line 16 side. That is, the vent valve 40 may be attached to the drain line 16.

As shown in FIGS. 3 to 5, the valve mechanism of the vent valve 40 will be described in more detail.
FIG. 3 is a cross-sectional view showing the closed state of the vent valve of the portable toilet device according to the first embodiment of the present invention, and FIG. 4 is the open valve state of the vent valve of the portable toilet device according to the first embodiment of the present invention. FIG. 5 is a sectional view showing the vent valve of the portable toilet apparatus according to the first embodiment of the present invention, wherein the correspondence between the pressure of the first chamber on the drainage trap pipeline side and the valve closing or opening state of the vent FIG.

  The vent valve 40 is opened by negative pressure equal to or less than a predetermined pressure. The vent valve 40 is opened by the negative pressure due to the siphon phenomenon when the siphon phenomenon occurs in the drainage trap pipeline 12 or the drainage pipeline 16 by the drainage pump 20 discharging the washing water to the downstream side. It has a valve mechanism. The valve mechanism of such a vent valve 40 is in the closed state at pressure P1 at the first chamber 46a side at atmospheric pressure P0 or higher, and closes at first negative pressure region pressure P2 lower than atmospheric pressure P0 and higher than valve opening pressure P4. It becomes a state, and it is formed so that it may be in the valve opening state by the 2nd negative pressure area pressure P3 below valve opening pressure P4.

  The vent valve 40 includes a valve seat 42, a valve member 44 that can be seated on the valve seat 42, and a casing 46 that houses the valve seat 42 and the valve member 44 therein. The valve member 44 is formed in an umbrella shape. For example, an umbrella valve can be applied to the vent valve 40.

  The inside of the casing 46 is provided with a first chamber 46 a on the drainage trap pipeline 12 side and a second chamber 46 b on the outside air side, which are separated by the valve seat 42 and the valve member 44. The first chamber 46 a communicates with the connecting portion 12 f of the top portion 12 c of the drainage trap pipeline 12. Therefore, the internal pressure of the first chamber 46 a interlocks with the internal pressure of the connecting portion 12 f of the drainage trap pipeline 12. The second chamber 46b is open to the atmosphere and communicated with the outside air.

  As shown in FIG. 3, when the air pressure in the first chamber 46 a on the drainage trap pipeline side is the pressure P1 equal to or higher than the atmospheric pressure P0, the valve member 44 is seated on the valve seat 42 and is closed. The upper limit of the pressure is set by the conditions such as the structure. Also, the valve member 44 is seated on the valve seat 42 even when the air pressure in the first chamber 46a on the drainage trap pipeline side is the first negative pressure area pressure P2 lower than the atmospheric pressure P0 and higher than the valve opening pressure P4. And the valve is closed. The valve member 44 does not deform in the valve opening direction until the first negative pressure region pressure P2 before the valve opening pressure P4 is reached.

  As shown in FIG. 4, when the air pressure in the first chamber 46 a on the drainage trap pipeline side is the second negative pressure region pressure P3 equal to or lower than the valve opening pressure P4 as shown in FIG. Transform into The lower limit of the second negative pressure region pressure P3 is set according to the conditions such as the structure. The second negative pressure region pressure P3 is a pressure range lower than the first negative pressure region pressure P2. When the valve member 44 is opened, external air flows from the second chamber 46b into the first chamber 46a and from the first chamber 46a into the top 12c via the connection portion 12f of the drainage trap pipeline 12. .

  As a modification, the vent valve 40 is closed at a pressure P1 higher than the atmospheric pressure P0, and closed at a first negative pressure region pressure P2 lower than the atmospheric pressure P0 and higher than the valve opening pressure P4 and open. It may be a diaphragm valve which realizes a valve mechanism formed so as to open at a second negative pressure region pressure P3 equal to or lower than the valve pressure P4. Such diaphragm valves are designed to seal by the elastic force of rubber. Also, the vent valve 40 realizes a similar valve mechanism, such as a valve that seals by biasing an O-ring-like valve body to a valve seat with a spring, or a spherical valve body with a valve seat. It may be a valve that seals by energizing.

  Note that, as a further modification, the vent valve 40 may be a so-called dorgo vent valve which opens at a predetermined pressure, for example, a negative pressure smaller than the atmospheric pressure P0 at the set location. The valve mechanism of such a vent valve is formed to be in a closed state at a pressure P1 higher than the atmospheric pressure P0 and to be in an open state at a negative pressure region pressure lower than the atmospheric pressure P0. When the siphon phenomenon occurs in the drainage trap pipeline 12 or the drainage pipeline 16, the valve mechanism of such a ventilation valve opens with the negative pressure due to the siphon phenomenon.

Next, the operation (action) of the portable toilet device according to the above-described first embodiment of the present invention will be described with reference to FIGS. 2 and 6 to 12. In FIG. 2 and FIG. 6 to FIG. 12, the portion where wash water and the like are present is illustrated by the liquid display method.
FIG. 6 is a time chart showing the operation of the water supply portion, the rotating body, the discharge pump, and the water level in the bowl portion of the portable toilet device according to the first embodiment of the present invention. FIG. 7 is the portable toilet device shown in FIG. FIG. 8 shows a state in which a suction swirling flow forming mode for forming a swirling flow in the bowl portion is executed in the portable toilet apparatus shown in FIG. FIG. 9 is a view showing a state in which a water level lowering mode for lowering the level of the stored water in the bowl portion is executed in the portable toilet device shown in FIG. 2; FIG. 10 is a portable toilet device shown in FIG. FIG. 11 is a view showing a state in which a filth crushing mode for smashing the filth is performed in the bowl portion, and FIG. 11 is a view showing the bowl portion in the portable toilet device shown in FIG. FIG. 12 is a view showing a state in which the discharge mode for discharging the washing water and the dirt to the downstream side is executed, and FIG. 12 shows the portable toilet apparatus shown in FIG. 2 executing the stored water forming mode for forming stored water in the bowl portion. Is a diagram showing a state in which the

FIG. 2 shows the reservoir surface W0 in a standby state before the user uses the toilet body 2. As shown in FIG. In this state, the water supply unit 4 is in a stopped state, and the pulverizing device 18 and the discharge pump 20 are also stopped.
In FIG. 6, such a standby state is established at a time before time t0. For example, time t0 is the time when the user starts using the toilet body 2. Before the use of the toilet body 2 is started, the control unit 24 executes a standby mode in which the water supply unit 4, the rotary body 26, and the discharge pump 20 are not in operation and in a standby state. The water supply unit 4, the rotating body 26, and the discharge pump 20 are in the OFF state where they are not in operation. In FIG. 6, the change of the water level in the bowl part 10 is shown. At time t0, the water level in the bowl portion 10 is the initial water level (the stored water surface W0 in the standby state).

As shown in FIG. 6, at time t0 to t1, the user uses the toilet body 2 and the filth (stool, urine, toilet paper, etc.) A (see FIG. 7) enters the bowl portion 10 . At time t0 to t1, the control unit 24 continues to execute the standby mode in which the water supply unit 4, the rotating body 26, and the discharge pump 20 are in the standby state.
From time t0 to t1, the water level in the bowl 10 is the initial water level and is almost constant, but it is disposed on the user's urine or stool, the toilet bowl main body 2 and cleans the user's local area etc. ( The water level may rise slightly due to water etc. discharged from not shown. At the time of excretion by the user, the reservoir water surface W0 in the bowl portion 10 is formed relatively high and wide to the initial water level to suppress the adhesion of dirt to a dry portion other than the reservoir water surface in the bowl portion 10.

  When the user operates the operation switch or the like of the operation unit at time t1, the cleaning operation is started. When the operation switch or the like of the operation unit is operated, the operation command is transmitted to the control unit 24, and the control unit 24 starts the cleaning mode in which the bowl unit 10 is cleaned with the cleaning water supplied by the water supply unit 4. As shown in FIGS. 6 and 7, in the cleaning mode, the control unit 24 sends a water supply command to the water supply unit 4, causes the water supply unit 4 to start the water supply operation from the water supply unit 4, and cleans the bowl unit 10 It is washed by B. As shown in FIG. 7, the dirt A is moved into the reservoir 14 by the washing water B. The control unit 24 continues the cleaning mode for a predetermined time T seconds of several seconds. In the cleaning mode, the control unit 24 keeps the rotating body 26 and the discharge pump 20 stopped in the standby state. In the cleaning mode, the water level in the bowl portion 10 gradually rises from the initial water level by the water supply from the water supply unit 4. No drainage gradient is formed in the flow path and drainage line 16 downstream of the drainage trap portion of the drainage trap line 12, and the drainage trap line 12 and the drainage line 16 have relatively thin diameters. Since it has, when the discharge pump 20 is stopped, the supplied wash water does not flow to the drainage trap pipeline 12 side and is stored in the bowl portion 10.

  The portable toilet device 1 according to the first embodiment supplies water from the water supply unit 4 to the bowl portion 10 in the cleaning mode, but as a modification, the cleaning mode, the suction swirl flow forming mode to be described later, and the water level lowering mode Water supply may be continued from the water supply unit 4 to the bowl unit 10. Thus, the instantaneous flow rate of water supply in the case where water is supplied continuously from the washing mode to the suction swirl flow formation mode and the water level lowering mode is the case where water is supplied only in the washing mode among the washing mode, suction swirl flow formation mode and water level lowering mode It is reduced than the instantaneous flow rate of water supply. When the water supply is continuously performed during the suction swirl flow formation mode, the washing water flows down while forming the swirl flow in the bowl portion 10, so that the swirl flow in the suction swirl flow formation mode can be further strengthened by the water supply. .

  The portable toilet device 1 according to the first embodiment will be described again. As shown in FIG. 6, at time t2 when a predetermined time T seconds has elapsed from time t1, the control unit 24 executes the suction swirling flow formation mode for driving the crushing apparatus 18 to form a swirling flow in the bowl portion 10 Do. As shown in FIGS. 6 and 8, in the suction swirl flow formation mode, the control unit 24 stops the water supply from the water supply unit 4 and drives the pulverizing device 18 to start the rotation of the rotating body 26. The rotation of the rotating body 26 is indicated by the arrow E in FIG. The suction swirling flow G is formed in the bowl portion 10 by the rotation of the rotating body 26. The rotational speed of the rotary body 26 in the suction swirl flow formation mode may be different from the rotational speed of the rotary body 26 in the waste crushing mode. The suction swirling flow G is formed up to the upper part of the rising water level in the bowl portion 10. It is possible to cause the dirt that the suction swirling flow G adheres to or follows the bowl portion 10 to be separated from the bowl portion 10 to some extent and put in the swirling flow. The controller 24 continues the suction swirl flow formation mode for a relatively short time of about one half to one third of T seconds. Since the rotary body 26 is only rotated in a relatively short time while the suction swirl flow formation mode is being performed, it is possible to suppress the splashing of the dirt in the wash water due to the rotary body 26 stirring the wash water. . In the suction swirl flow formation mode, the control unit 24 stops the water supply unit 4 and the discharge pump 20. In the suction swirl flow formation mode, the water level in the bowl portion 10 is the highest level of the reservoir surface W1 to which the water supply from the water supply unit 4 is performed.

  As shown in FIG. 6, at time t3, the control unit 24 executes the water level lowering mode in which the drainage pump 20 is driven to lower the level of the stored water in the bowl portion 10. The control unit 24 executes the water level lowering mode after the start of the execution of the cleaning mode and after the start of the execution of the suction swirl flow formation mode. As shown in FIG. 6 and FIG. 9, in the water level lowering mode, the control unit 24 starts driving the discharge pump 20 to lower the water level of the reservoir water surface W1 to the position of the reservoir water surface W2. Drain only the flow rate. The flush water is drained into the drain line 16 via the drain trap line 12 as indicated by the arrow A1. The amount of flush water present in the reservoir portion 14 is reduced, and the reservoir surface of the reservoir portion 14 becomes the position of the reservoir surface W2. Thereby, in the filth crushing mode executed after execution of the water level lowering mode, the accumulated water surface in the bowl portion 10 is lowered at the time of the pulverization of the filth, and the splashing of the soil during the pulverization to the outside of the bowl portion 10 is suppressed. be able to.

  In the water level lowering mode, the control unit 24 drives the discharge pump 20 with the first output. The first output of the discharge pump 20 is lower than the second output described later, and causes the impeller 34 to rotate at a relatively low rotational speed. The flow rate per unit time discharged by the discharge pump 20 of the first output in the water level lowering mode is smaller than the flow rate per unit time discharged by the discharge pump 20 of the second output in the discharge mode described later. As a result, in the water level lowering mode, the washing water is discharged from the inside of the bowl portion 10 with a drainage capacity lower than the drainage capacity in the drainage mode performed after the smashing of the waste. Therefore, according to the present embodiment, the possibility that the uncrushed waste in the bowl portion 10 clogs the filter 22 or intrudes into the connection portion 12 a and clogs the discharge pump 20 can be suppressed.

  The control unit 24 lowers the surface of the stored water in the bowl portion 10 to the cylindrical portion 10 a in the water level lowering mode. Thereby, in the state where stored water surface W2 is located in cylindrical part 10a where the channel diameter in top view does not change substantially, it is possible to pulverize the dirt in the stored water. Even if the reservoir water surface W2 swings or waves due to the crushing of the dirt, the radial variation of the reservoir water surface W2 can be reduced in top view, and the reservoir water surface W2 containing the dirt during pulverization can be seen to spread by the user Can reduce the possibility of giving disgust.

  As shown in FIGS. 6 and 9, the control unit 24 also drives the comminution device 18 while the water reduction mode is being performed. The control unit 24 rotates the rotating body 26 while the water level lowering mode is being performed. The rotation of the rotating body 26 is indicated by the arrow E in FIG. Thereby, when the water level of the stored water surface in the bowl portion 10 gradually decreases during execution of the water level reduction mode, a swirling flow is formed in the stored water, and dirt in the stored water is separated from the bowl portion 10 and the swirling flow The waste can be guided down while being placed on top of the bowl 10 so that dirt can not easily remain along the bowl portion 10. Therefore, after completion of execution of the water level lowering mode, it is possible to suppress the waste from remaining in the bowl portion 10, to improve the cleaning performance in the bowl portion 10 and efficiently crush the waste in the bowl portion 10. The rotation speed of the rotating body 26 in the water level lowering mode may be different from the rotation speed of the rotating body 26 in the waste crushing mode. Since the rotating body 26 is rotated while the water level is lowered during execution of the water level lowering mode, it is possible to suppress the splashing of the dirt in the cleaning water due to the rotation of the rotating body 26 by stirring the cleaning water.

  By the execution of the water level lowering mode, the volume of washing water stored in the bowl portion 10 is reduced. Assuming that the rotational energy input by the rotation of the rotating body 26 in the filth crushing mode is constant, the volume of washing water in the bowl 10 is smaller than when the volume of washing water in the bowl 10 is large. The flow velocity of the swirling flow in the case is relatively high. Therefore, by the execution of the water level reduction mode, a relatively high-speed swirling flow can be formed in the waste crushing mode, and the waste can be more reliably crushed.

  The control unit 24 terminates the execution of the water level reduction mode when the water level detection device 13 detects a reduction in the water level in the bowl portion 10 up to a predetermined water level corresponding to the reservoir surface W2 after the start of the water level reduction mode. . Thus, the water level in the bowl portion 10 can be reliably lowered to a predetermined water level in the water level lowering mode by the water level detection device.

  The control unit 24 continues the water level lowering mode for a predetermined time of about T seconds. In the water level reduction mode, the control unit 24 stops the water supply unit 4. After driving the discharge pump 20 for a predetermined time, the control unit 24 stops it again with the end of the water level lowering mode. The dirt of the predetermined size or more among the dirt A does not pass through the filter 22 and remains in the reservoir portion 14.

In the portable toilet device 1 according to the first embodiment, the control unit 24 sequentially executes the cleaning mode, the suction swirl flow forming mode, and the water level lowering mode, but as a modification, the control unit 24 performs the wash mode, suction swirl flow forming The mode and the water drop mode may be executed almost simultaneously. In the case where the cleaning mode, the suction swirl flow formation mode, the water level lowering mode are started almost simultaneously and executed, or all of the modes are started even if the start timing of these modes is slightly shifted. It also includes the case where there is a period in which the parts are executed in duplicate. For example, the case where the control unit 24 starts and executes the cleaning mode, the suction swirl flow formation mode, and the water level reduction mode almost simultaneously will be described.
At time t1, the control unit 24 starts the cleaning mode, the suction swirl flow forming mode, and the water level lowering mode almost simultaneously. That is, the control unit 24 executes the water level lowering mode after the start of the execution of the cleaning mode. In addition, the control unit 24 executes the water level lowering mode after the start of the execution of the suction swirl flow formation mode. At this time, the control unit 24 starts the water supply operation from the water supply unit 4, starts the rotation of the rotating body 26, and drives the discharge pump 20 with the first output. The suction swirl flow formation mode is executed from the initial stage after the rotation of the rotating body 26 is started. The control unit 24 ends the water supply operation from the water supply unit 4 at time t2. The control unit 24 may end the cleaning mode first at time t2. At time t2, the control unit 24 continues the rotation of the rotating body 26 and continues the driving of the discharge pump 20. At time t4, the control unit 24 stops the driving of the discharge pump 20. At time t4, the control unit 24 ends the suction swirl flow formation mode and the water level lowering mode.
When these modes are started almost simultaneously, the time from time t1 to time t4 is shorter than when these modes are sequentially executed. The control unit 24 executes these modes almost simultaneously, can wash the bowl portion 10 by the washing mode, can form the suction swirling flow G in the bowl portion 10, and further lowers the level of the water in the bowl portion 10 It can be done.

  The portable toilet device 1 according to the first embodiment will be described again. As shown in FIG. 6 and FIG. 10, at time t4, the control unit 24 executes a filth crushing mode in which the filth is crushed in the bowl portion 10. The control unit 24 drives the pulverizing device 18 to form a swirling flow (see arrow A2) in the bowl portion 10 by the rotation E of the rotating body 26, and performs the pulverizing operation of the waste. In the reservoir portion 14, the waste is pulverized by the rotary flow. The filth A is crushed and becomes filth a of a predetermined size or less. After the stored water level in the bowl is lowered by the execution of the water level lowering mode, the waste crushing mode is executed. Therefore, the stored water surface W2 in the bowl 10 is reduced at the time of the waste reduction, and the stored water surface W2 of the waste during the reduction. And splash of washing water and dirt from the bowl portion 10 to the outside can be suppressed. The control unit 24 continues the dirt crushing mode for a predetermined time between 1.5 and 2 times T seconds. In the filth crushing mode, the control unit 24 stops the water supply unit 4 and the discharge pump 20. In the filth crushing mode, the water level in the bowl portion 10 is maintained at the water level of the reservoir surface W2.

As shown in FIGS. 6 and 11, at time t5, the control unit 24 executes the discharge mode in which the wash water in the bowl portion 10 is discharged to the downstream side by driving the discharge pump 20.
In the discharge mode, the control unit 24 stops the crushing device 18 and drives the discharge pump 20 with the second output after the end of the waste crushing mode. The second output of the exhaust pump 20 causes the impeller 34 to rotate at a relatively high rotational speed. The drainage pump 20 pumps (drains) the washing water and the dirt a (hereinafter referred to as washing water etc.) to the drainage pipeline 16 via the drainage trap pipeline 12, as shown by the arrow A3. The dirt a can pass through the filter 22. Thus, the dirt a is discharged from the water reservoir 14. When the discharge pump 20 discharges wash water and the like to the drainage trap pipe line 12 and the drainage pipe line 16, these pipe diameters are relatively thin and there is a portion of the pipe line which is disposed substantially horizontally without a slope. There is a portion where flush water or the like becomes full in the drainage trap pipeline 12 or the drainage pipeline 16. When flush water or the like becomes full in the drainage trap pipeline 12 or the drainage pipeline 16, a siphon phenomenon occurs in the drainage trap pipeline 12 or the drainage pipeline 16. Once the siphon phenomenon occurs, the siphon phenomenon will occur in the drainage trap pipeline 12 and the drainage pipeline 16. When the siphon phenomenon occurs, the flush water present in the drainage trap pipeline 12 and the drainage pipeline 16 is drawn downstream. During operation of the drainage pump 20, the flow of pumping by the drainage pump 20 and the flow due to the siphon phenomenon are formed in the drainage trap pipeline 12 and the drainage pipeline 16. At this time, a positive pressure equal to or higher than the atmospheric pressure is applied to the vent valve 40 provided in the drainage trap pipeline 12 from the first chamber 46 a side, and the vent valve 40 is in a closed state.

  In the drain mode, the drain pump 20 drains almost all the wash water and the dirt a in the reservoir portion 14 to the downstream side. The control unit 24 continues the discharge mode for a predetermined time between 1.5 and 2 times T seconds. In the discharge mode, the control unit 24 starts the water supply from the water supply unit 4 from time t5 as indicated by an arrow A4. In accordance with the timing of discharge of dirt and the like from the inside of the reservoir water portion 14, reservoir water is formed early in the bowl portion 10 by the washing water. In the discharge mode, the control unit 24 stops the rotating body 26. In the drain mode, the water level in the bowl portion 10 is lowered from the reservoir surface W2 to a position where almost all the wash water and the dirt a are drained from the reservoir portion 14 and the water level is almost zero.

  In the portable toilet apparatus 1 according to the first embodiment, the control unit 24 starts water supply from the water supply unit 4 from time t5 in the discharge mode, but as a modification, in the discharge mode, the control unit 24 passes a predetermined time from time t5 The water supply from the water supply unit 4 may be started after the operation. By delaying the water supply start from the water supply unit 4, it is possible to suppress the consumption of wasted water in which the supplied wash water is discharged in the discharge mode, and efficiently form the stored water by the water supply from the water supply unit 4. can do.

  The portable toilet device 1 according to the first embodiment will be described again. As shown in FIGS. 6 and 12, at time t6, the control unit 24 executes a stored water formation mode for forming stored water in the bowl portion 10. At time t6, the control unit 24 determines that the discharge of wash water and the like from the reservoir 14 is almost completed, and stops the driving of the discharge pump 20. In the stored water formation mode, the control unit 24 forms stored water in the bowl portion 10 by the water supply from the water supply unit 4 as shown by the arrow A4. At this time, the control unit 24 stops the rotating body 26 and the discharge pump 20. The control unit 24 continues the reservoir formation mode for a predetermined time between 1.5 and 3 times T seconds. The water level in the bowl 10 gradually rises to the initial water level.

  As shown in FIG. 12, when the flush water in the reservoir 14 is stored at time t7 and reaches the reservoir surface W0, the control unit 24 stops the water supply unit 4 and ends the series of cleaning operations. The water surface of the rising portion 12b also has the same height in conjunction with the reservoir water surface W0. The grinding device 18 and the discharge pump 20 remain stopped. The toilet body 2 returns to the standby state before being used.

Next, with reference to FIG. 6 and FIG. 13 to FIG. 16, a short-term state change from immediately after stopping the operation of the discharge pump 20 in the water level reduction mode to the start of the filth crushing mode will be described in more detail. .
FIG. 13 is a view showing the state of washing water and the like in the bowl portion and the drainage trap pipeline immediately after stopping the driving of the discharge pump in the water level lowering mode in the portable toilet device shown in FIG. 15 is a view showing a state in which the vent valve introduces air into the drainage trap pipeline immediately after stopping the driving of the discharge pump in the water level lowering mode in the portable toilet device shown in FIG. FIG. 16 is a view showing a state where the vent valve further introduces air into the drainage trap pipeline in the device, and FIG. 16 is a portable toilet device shown in FIG. It is a figure which shows the state which and the pressure of the wash water in the drainage trap pipe line balanced. In FIG. 16, volumes V3 and V4 are shown by imaginary lines.

  As shown in FIG. 6, immediately before the end of the execution of the water level lowering mode, the control unit 24 drives the discharge pump 20 to discharge wash water and the like to the drainage trap pipeline 12 and the drainage pipeline 16. As shown in FIG. 13, at this time, since the flush water or the like is full in the drainage trap pipeline 12 or the drainage pipeline 16, the siphon phenomenon occurs in the drainage trap pipeline 12 and the drainage pipeline 16. As indicated by the arrow J1, the flush water and the like move gently toward the downstream side of the drainage trap pipeline 12 and the drainage pipeline 16. Once the siphon phenomenon occurs, the flow by the siphon phenomenon occurs toward the downstream side until the flush water in the drainage trap pipeline 12 and the drainage pipeline 16 disappears. At the end of the execution of the water level lowering mode, the control unit 24 stops the driving of the discharge pump 20. When the drainage pump 20 is stopped, flush water and the like exist in the drainage trap pipeline 12 and the drainage pipeline 16.

As described above, the height of the water level X1 in the bowl portion 10 when the driving of the discharge pump 20 is stopped in the water level reduction mode is lower than the height of the appropriate water level X5 at the start of the waste crushing mode. In addition, the height of the appropriate water level X5, which is the water level at the start of the smashing mode, is lower than the initial water level (the standing water surface W0), and smashing is possible so that most of the filth can pass through the filter 22. The height of the water level is, for example, the height of the upper end of the cylinder upper portion 10a.
The water level in the drainage trap pipeline 12 at the end of the execution of the water level reduction mode and the end of the siphon phenomenon becomes higher than the water level in the bowl portion 10. However, since the pressure difference between the pressure in the drainage trap pipe 12 and the pressure acting on the bowl portion 10 causes an unstable state in this state, the pressure in the drainage trap pipe 12 and the bowl portion While the water level in the drainage trap pipeline 12 gradually decreases until the atmospheric pressure acting on 10 is balanced, the water level in the bowl portion 10 rises. Thus, the water level at the start of the filth crushing mode is higher than the water level at the end of the execution of the water level reduction mode.
The height of the water level in the bowl portion 10 when the drive of the discharge pump 20 is stopped in the water level lowering mode is lower than the appropriate water level height at the start of the filth crushing mode. Thus, the drainage trap pipeline 12 at the end of the water level reduction mode is provided in the space in the bowl portion 10 which is surrounded from the height of the water level X1 at the end of the water level reduction mode to the height of the appropriate water level X5 at the start of the waste crushing mode. It is possible to let in water flow. Therefore, according to the present embodiment, the bowl portion at the start of the filth crushing mode, as compared with the case where the water level at the end of the water reduction mode is set to the height of the appropriate water level X5 at the start of the filth crushing mode The height of the water level in 10 can be lowered, and splashing of the waste material during grinding from the water surface of the waste to the outside of the bowl portion 10 can be further suppressed.

  As shown in FIG. 14, since the siphon phenomenon continues to occur in the drainage trap pipeline 12 and the drainage pipeline 16 even after the drainage pump 20 is stopped, as indicated by the arrow J2, the flush water etc. It moves gently toward the downstream side of the passage 12 and the drainage pipeline 16. Therefore, the height of the water level in the bowl portion 10 is the height of the water level X2 which is lowered from the water level X1, and is lower than the height of the appropriate water level X5 at the start of the filth crushing mode.

  As shown in FIG. 14, when negative pressure is generated in the drainage trap pipeline 12 and the drainage pipeline 16 by the flow of cleaning water etc. due to the siphon phenomenon as shown by the arrow J2, the vent valve 40 is opened by the negative pressure. Air is introduced into the drain trap line 12 as indicated by the arrow C1. More specifically, the vent valve 40 is opened by a negative pressure at a timing of about a fraction of a second after the discharge pump 20 is stopped. Therefore, air can be taken into the drainage trap pipe line 12 from the outside of the drainage trap pipe line 12, and the siphon phenomenon can be forcibly terminated early.

  More specifically, the vent valve 40 is closed when the drainage trap pipe 12 side is at a first negative pressure lower than atmospheric pressure and higher than the valve opening pressure, and the drainage trap pipe 12 side is valve opening pressure In the case of the following second negative pressure region pressure, the valve opens. Thus, the vent valve 40 has a valve opening pressure at a predetermined negative pressure, and the valve opening pressure is lower than the atmospheric pressure. Therefore, as shown in FIG. 16, after the vent valve 40 takes air into the drain trap pipe 12, the vent valve 40 is closed to clean the pressure of the washing water in the bowl portion 10 and the inside of the drain trap pipe 12. When the pressure of the water is balanced, the water level in the drainage trap pipe 12 is higher than the water level in the bowl portion 10 by the valve opening pressure head H of the vent valve. The air pressure in the vicinity of the vent valve 40 in the drainage trap pipeline 12 is a negative pressure of the valve opening pressure. Here, if the water level in the bowl portion 10 is to be set to the predetermined appropriate water level X5, the connecting portion 12f between the vent valve 40 and the drainage trap pipe line 12 is higher than the predetermined water level in the drainage trap pipe line 12. It needs to be provided in position. Therefore, according to the present embodiment, the connecting portion 12f between the vent valve 40 and the drainage trap pipeline 12 opens the vent valve 40 to the height of the appropriate water level X5 at the start of the filth crushing mode in the bowl portion 10. It is provided at a height higher than the height of the water level X7 to which the pressure head H is added. Thereby, the water level at the start of the filth crushing mode in the bowl portion 10 can be set to the height of the appropriate water level X5. Therefore, according to the present embodiment, the water level at the start of the filth crushing mode in the bowl portion 10 can be set to the appropriate water level X5, and the filth in the bowl portion 10 can be surely crushed. If the connecting part 12f is provided at a height lower than the height of the water level X7, the water level at the start of the waste crushing mode becomes lower than the appropriate water level X5, so the connecting part 12f is provided higher than the height of the water level X7. This can be prevented by being

  As shown in FIG. 15, after the start of the introduction of air from the vent valve 40, air is further introduced into the drainage trap pipeline 12 as indicated by the arrow C2. On the downstream side of the connecting portion 12f, as shown by arrow J3, the washing water flows toward the downstream side. On the upstream side of the connection portion 12f, the water level of the flush water in the drainage trap pipeline 12 drops from the connection portion 12f to a height obtained by adding the valve opening pressure head H to the height of the appropriate water level X5. As indicated by the arrow J3, this reduced amount of wash water returns into the bowl portion 10. Therefore, the water level of the stored water in the bowl part 10 rises. The volume in the bowl portion 10 from the height of the water level X1 in the bowl portion 10 when the drive of the discharge pump 20 is stopped in the water level lowering mode to the height of the appropriate water level X5 at the start of the waste crushing mode is volume V3. (See Figure 16). Further, from the height (the height of the connecting portion 12f) of the water level X6 (see FIG. 14) when the siphon phenomenon in the drainage trap pipeline 12 is stopped when the driving of the discharge pump 20 is stopped in the water level lowering mode, The volume in the drainage trap pipeline 12 up to the height of the total water level X7 (see Fig. 16) obtained by adding the valve opening pressure head H of the vent valve to the appropriate water level X5 height at the start of the filth crushing mode (See FIG. 16). This volume V3 is approximately equal to the volume V4. The volume V4 is a volume from the connection portion 12f of the drainage trap pipeline 12 to the height of the total water level X7. Therefore, according to the present embodiment, the height of the water level in the bowl portion 10 at the start of the soil crushing mode can be made the height of the appropriate water level X5, and the soil can be crushed reliably in the soil crushing mode. . Further, according to the present embodiment, the degree of freedom of the position of the connecting portion 12 f can be increased, so that the degree of freedom of the design of the portable toilet device 1 can be created. As shown in FIG. 16, the filth crushing mode is started in a state where the water level in the drainage trap pipeline 12 becomes the water level X7 and the water level in the bowl portion 10 becomes the appropriate water level X5. By starting the soil crushing mode at the appropriate water level X5, it is possible to further suppress jumping of the soil during grinding from the water surface of the bowl to the outside of the bowl portion 10.

  Thus, in a short time between the water level lowering mode and the waste crushing mode shown in FIG. 6, the water level in the bowl portion 10 rises from the water level X1 to the water level X2 and then rises to the appropriate water level X5. The filth crushing mode is the filth crushing mode executed from time t4 in FIG.

  Although the portable toilet device 1 according to the first embodiment includes the water level detection device 13 for detecting the water level in the bowl portion 10, as a modification, as shown in FIG. Instead of the detection device 13, a water level detection device 113 may be provided which detects the water level in the bowl portion 10 by a contact-type pressure sensor. FIG. 17 is a view showing a modification of the water level detection device of the portable toilet device shown in FIG. The water level detection device 113 includes a flow path 113a connected to the bottom and the front side of the bowl portion 10. The pressure of wash water or the like in the bowl portion 10 is measured via the flow path 113a to clean the inside of the bowl portion 10. Measure the water level of water etc.

  The portable toilet device 1 according to the first embodiment includes the discharge pump 20 which is a discharge device for discharging the washing water in the bowl portion 10 to the downstream side, but as a modification, as shown in FIG. The portable toilet device 1 may be provided with a vacuum drainage device 120 which is a discharge device for discharging the washing water in the bowl portion 10 to the downstream side, instead of the discharge pump 20. FIG. 18 is a view showing a modification in which a vacuum drainage device is applied in place of the discharge pump of the portable toilet device shown in FIG. The vacuum drainage device 120 is disposed downstream of the drainage trap structure of the drainage trap pipeline 12. The vacuum drainage device 120 is configured so as to suck the crushed waste crushed in the reservoir portion 14 together with the washing water and discharge it to the downstream side of the drainage trap pipeline 12.

  Although the portable toilet apparatus 1 according to the first embodiment includes the discharge pump 20 which is a discharge apparatus for discharging the washing water in the bowl portion 10 to the downstream side, as a modification, as shown in FIG. The portable toilet device 1 may be provided with a turn trap device 220, which is a discharge device for discharging the washing water in the bowl portion 10 to the downstream side, instead of the discharge pump 20. FIG. 19 is a view showing a modification in which a turn trap device is applied in place of the discharge pump of the portable toilet device shown in FIG. The turn trap device 220 is disposed downstream of the flow passage 212 extending from within the bowl portion 10. The turn trap device 220 is formed so as to be rotatable about the base 220a. In the case where the pulverized waste pulverized in the reservoir 14 flows downstream with the washing water, the turn trap device 220 holds the flow upstream in the state of the posture K1. After a certain amount of water has accumulated on the upstream side, the direction of the turn trap device 220 is changed to the posture K 2 state, and the accumulated washing water and the soil are discharged at once into the drainage pipeline 216 on the downstream side. It is done.

Next, the effect by the portable toilet device 1 by 1st Embodiment mentioned above is demonstrated.
According to the portable toilet device 1 according to the first embodiment, after the stored water surface in the bowl portion 10 is lowered by the execution of the water level lowering mode, the soil is crushed in the bowl portion 10 by the execution of the soil crushing mode. As a result, when drained by the user, the surface of the reservoir water in the bowl portion 10 can be made high and wide to prevent the adhesion of dirt to a dry portion other than the surface of the reservoir water in the bowl portion 10 At the same time, the reservoir surface in the bowl portion 10 can be lowered to suppress the splashing of the waste material during the crushing from the reservoir surface to the outside of the bowl portion 10.

  Moreover, according to the portable toilet device 1 according to the first embodiment, the bowl portion 10 is formed in a mortar shape, and the stored water surface in the bowl portion 10 is reduced by execution of the water level reduction mode, and the stored water surface in top view Area is reduced. Therefore, according to the present embodiment, it is possible to further suppress the splashing of the dirt during grinding from the water surface of the dirt to the outside of the bowl portion 10, and reduce the area of the water surface where the dirt during grinding is visible. It can suppress the possibility of giving disgust.

  Furthermore, according to the portable toilet device 1 according to the first embodiment, the control unit 24 lowers the reservoir surface in the bowl portion 10 to the cylindrical portion 10 a by executing the water level reduction mode. Thereby, the waste water can be crushed in the stored water in a state where the stored water surface is positioned in the cylindrical portion 10a in which the flow path diameter in top view does not substantially change. Therefore, according to the present embodiment, even if the water surface is shaken due to the crushing of the soil, the radial variation of the water surface can be reduced in top view, and the water surface including the soil during the crushing spreads and is used Can reduce the possibility of giving disgust.

  Furthermore, according to the portable toilet device 1 according to the first embodiment, the bowl portion 10 is cleaned by the execution of the cleaning mode, and the dirt adhering to the inside of the bowl portion 10 is made to flow downward. Decrease the level of the reservoir water in section 10. Thereby, the filth adhering in the bowl part 10 can be efficiently collected in the stored water reduced by execution of the water level reduction mode, and the filth in the bowl part 10 can be ground efficiently.

  Furthermore, according to the portable toilet device 1 according to the first embodiment, the flow rate per unit time discharged by the discharge pump 20 in the water level reduction mode is higher than the flow rate per unit time discharged by the discharge pump 20 in the discharge mode. small. As a result, in the water level lowering mode, the washing water is discharged from the inside of the bowl portion 10 with a drainage capacity lower than the drainage capacity in the drainage mode performed after the smashing of the waste. Therefore, according to the present embodiment, it is possible to suppress the possibility that the uncrushed waste in the bowl portion 10 intrudes into the discharge passage in the water level reduction mode and clogs the discharge pump 20.

  Furthermore, according to the portable toilet device 1 according to the first embodiment, when the control unit 24 drives the crushing device 18 while the water level reduction mode is being performed, the stored water surface in the bowl portion 10 is being performed during the water level reduction mode. When the water level gradually decreases, a swirling flow is formed in the stored water, and the waste in the stored water is directed downward while being placed on the swirling flow, making it difficult for the waste to remain along the bowl portion 10 be able to. Therefore, after completion of execution of the water level lowering mode, it is possible to suppress the remaining of the waste in the bowl portion 10, improve the cleaning performance in the bowl portion 10, and crush the waste in the bowl portion 10 more efficiently. .

  Furthermore, according to the portable toilet device 1 according to the first embodiment, the control unit 24 executes the water level reduction mode after the execution of the suction swirl flow formation mode. As a result, a suction swirling flow is formed in the bowl portion 10, and execution of the water level lowering mode can be started in a state where the waste along the bowl portion 10 is peeled off from the bowl portion 10 to some extent. Therefore, according to the present embodiment, after the execution of the water level lowering mode is completed, it is suppressed that the waste is left above the water surface which drops in the bowl 10, and the waste in the bowl 10 is crushed more efficiently. be able to.

  Furthermore, according to the portable toilet device 1 according to the first embodiment, since the waste can be pressurized by the discharge pump and discharged, it is possible to reduce the diameter of the piping such as the drainage line 16 through which the waste and the washing water flow. And the portable toilet device 1 can be easily arranged.

  Furthermore, according to the portable toilet device 1 according to the first embodiment, when the control unit 24 detects that the water level in the bowl 10 has reached a predetermined water level since the start of the water level reduction mode, End the water level reduction mode execution. Therefore, according to the present embodiment, the water level in the bowl portion 10 can be reliably lowered to a predetermined water level by the water level detection device 13, and the waste water surface being ground to the outside of the bowl portion 10 during grinding Jumping can be further suppressed. Therefore, it is possible to more reliably achieve both suppression of the adhesion of the soil at the time of excretion and the suppression of the jumping to the outside of the bowl portion 10 at the time of the soil crushing.

Furthermore, according to the portable toilet device 1 according to the first embodiment, when the portable toilet device 1 is formed to be movable, the flexibility connected to the downstream side of the discharge path depending on the installation situation of the portable toilet device 1 There is a risk that a reverse slope (a situation where building piping downstream of the flexible pipeline is higher) may occur in the pipeline. When a reverse gradient occurs in the flexible conduit, it causes a pressure drop. In addition, increase in pipe length in a flexible conduit, pipe bend, and the like also become factors of pressure loss. Due to such pressure loss factors, there is a risk that the increased amount of accumulated water due to urination and the like can not be discharged from the flexible pipeline to the building piping side, and water that can not be discharged to the building piping side may reach the bowl portion 10 There is a risk that the reservoir surface will rise back.
Therefore, according to the present embodiment, also in the movable portable toilet device 1, the control unit 24 is provided with the water level lowering mode, thereby lowering the level of the water stored in the bowl portion 10 at the time of smashing, and smashing Splashing out of the bowl 10 from the surface of the waste water of the waste material can be suppressed. Furthermore, according to the present embodiment, the accumulated water surface in the bowl portion 10 is made high and wide at the time of excretion by the user, and the adhesion of dirt to the dried portion other than the stored water surface in the bowl portion 10 is suppressed. When the waste is crushed, the surface of the reservoir in the bowl portion 10 can be lowered to suppress the splashing of the portion of the soil during the crushing from the surface of the reservoir to the outside of the bowl 10.

Furthermore, according to the portable toilet device 1 according to the first embodiment, the vent valve 40 is closed when the drainage trap pipe 12 side is at a first negative pressure region pressure lower than the atmospheric pressure and higher than the valve opening pressure. And when the drainage trap pipeline 12 side is the 2nd negative pressure area pressure below the valve opening pressure, it will be in the valve open state. That is, the pressure at which the vent valve 40 is closed is lower than the atmospheric pressure. Therefore, in a state where the vent valve 40 closes air after the vent valve 40 takes air into the discharge path, and the pressure of the flush water in the bowl portion 10 and the pressure of the flush water in the drainage trap pipeline 12 are balanced, The water level in the drainage trap pipeline 12 is higher than the water level in the bowl portion 10 by the opening pressure head of the vent valve 40. Here, if it is going to set the water level in the bowl part 10 to the appropriate water level X5 at the start of a predetermined filth crushing mode, the connection part 12f of the vent valve 40 and the drainage trap pipeline 12 is a drainage trap pipeline. It needs to be provided at a position higher than the water level in 12.
Therefore, according to the present embodiment, the connecting portion 12f between the vent valve 40 and the drainage trap pipeline 12 has the opening pressure head of the vent valve 40 at the appropriate water level at the start of the filth crushing mode in the bowl portion 10. It is provided in the height more than the height which added. Thereby, the water level at the start of the filth crushing mode in the bowl portion 10 can be set. Therefore, according to the present embodiment, the water level at the start of the dirt crushing mode in the bowl portion 10 can be set, and the dirt in the bowl portion 10 can be surely crushed.

  Furthermore, according to the portable toilet device 1 according to the first embodiment, the water level in the drainage trap pipeline 12 when the execution of the water level reduction mode is finished and the siphon phenomenon is finished becomes higher than the water level in the bowl portion 10 . However, since the pressure difference between the pressure in the drainage trap pipe 12 and the pressure acting on the bowl portion 10 causes an unstable state in this state, the pressure in the drainage trap pipe 12 and the bowl portion While the water level in the drainage trap pipeline 12 gradually decreases until the atmospheric pressure acting on 10 is balanced, the water level in the bowl portion 10 rises. Thus, the water level at the start of the filth crushing mode is higher than the water level at the end of the execution of the water level reduction mode. Therefore, according to the present embodiment, the height of the water level in the bowl portion 10 when the driving of the discharge pump 20 is stopped in the water level lowering mode is lower than the water level height at the start of the filth crushing mode. Thus, the water in the discharge passage at the end of the water level reduction mode can be made to flow into the space in the bowl portion 10 surrounded by the water level height at the end of the water level reduction mode and the water level height at the start of the waste crushing mode. it can. Therefore, according to the present embodiment, compared with the case where the water level height at the end of the water level reduction mode is set to the water level height at the start of the filth crushing mode, the inside of the bowl portion 10 at the start of the filth crushing mode The height of the water level can be lowered, and jumping of the soil during grinding from the surface of the reservoir to the outside of the bowl portion 10 can be further suppressed.

  Furthermore, according to the portable toilet device 1 according to the first embodiment, from the height of the water level in the bowl portion 10 when the drive of the discharge pump 20 is stopped in the water level lowering mode to the height of the water level at the start of the filth crushing mode The volume in the bowl portion 10 in the drainage trap pipe 12 is from the height of the connection portion 12 f to the height obtained by adding the valve opening pressure head of the vent valve 40 to the height of the water level at the start of the filth crushing mode. Equal to the volume. Therefore, according to the present embodiment, it is possible to set the height of the water level in the bowl portion 10 at the start of the waste crushing mode, and the waste can be reliably crushed in the waste crushing mode. Further, according to the present embodiment, the degree of freedom of the position of the connecting portion 12 f between the vent valve 40 and the drainage trap pipeline 12 can be increased, so that the degree of freedom of design of the portable toilet device 1 can be created.

Next, a toilet bowl apparatus according to a second embodiment of the present invention will be described with reference to FIGS. The toilet bowl device of this embodiment is different from the above-described first embodiment in that it is a flush toilet bowl device installed in a toilet. Here, only points different from the first embodiment of the second embodiment of the present invention will be described, and the same reference numerals are given to the same parts in the drawings and the description will be omitted.
FIG. 20 is an overall perspective view of a toilet bowl device according to a second embodiment of the present invention as viewed from the upper rear, FIG. 21 is a cross-sectional view showing the toilet bowl device according to the second embodiment of the present invention It is a time chart which shows the change of the water level in the water supply part of the toilet bowl device by the 2nd embodiment of the invention, a rotary body, a discharge pump, and the bowl part.

  As shown in FIG. 20, the toilet bowl device 101 (toilet bowl device) according to the second embodiment is a flush type toilet bowl device installed in a toilet of a building. The toilet bowl apparatus 101 according to the second embodiment of the present invention is, for example, a water-saving flush toilet bowl that is cleaned with 3.8 to 6 liters of flush water. The toilet bowl device 101 can discharge the waste with a relatively small amount of washing water because the waste is crushed and discharged.

  As shown in FIG. 21, the toilet bowl device 101 includes a toilet bowl body 102 made of pottery, and a water supply unit 4 which is a water supply device for supplying flush water to the toilet bowl body 102. The water supply unit 4 is connected to the water supply pipe 108 on the building side. The water supply unit 4 is provided at the rear upper portion of the toilet body 102, and supplies wash water to the bowl unit 110 from the water discharge port 110c formed in the bowl unit 110. The water supply unit 4 may be of a tank type that supplies washing water from a water storage tank. The water supply pipe 108 is formed by piping installed in a building.

  The toilet body 102 includes a bowl portion 110 provided on the front side of the toilet body 102, a drainage trap pipeline 12, and a water reservoir 114 formed below the bowl portion 10. The bowl portion 110 and the reservoir portion 114 are formed of pottery. The toilet bowl device 101 is a stationary device in which the lower portion of the outer periphery of the bowl portion 110 is fixed to the floor surface F. In addition to the pottery, the toilet body 102 may be made of only a resin and a pottery, or a resin.

  The bowl portion 110 includes a bowl-shaped filth receiving surface 110d opened upward. The dirt receiving surface 110d is formed in a mortar shape, and decreases as the area inside the dirt receiving surface 110d of the horizontal cross section descends. In the bowl portion 110, a cylindrical portion 110a extending in the longitudinal direction from the lower portion of the waste receiving surface 110d is formed. The cylindrical portion 110a is formed so that the flow passage diameter (cross-sectional area diameter) in top view is substantially unchanged and constant. The cylindrical portion 110a forms a relatively short flow path extending in the vertical direction. In the bowl portion 110, a reservoir portion 114 for storing the reservoir water is formed so as to form a reservoir surface W0 (a reservoir surface in a standby state) below the bowl portion 110 before the start of cleaning. The reservoir surface W0 of the stored reservoir water is formed on the waste receiving surface 110d.

  A water level detection device 13 for detecting the water level in the bowl portion 110 is provided in the cylindrical portion 110 a of the bowl portion 110.

  The drainage trap pipeline 12 includes a connecting portion 12a connected to the bottom of the bowl portion, a rising portion 12b which rises to form a drainage trap, and a top 12c connected to the rising portion 12b of the drainage trap. The drainage trap pipeline 12 forms a drainage trap structure by at least the rising portion 12b and the top 12c. The drainage pipe line 116 on the building side is connected to the top 12 c of the drainage trap pipe line 12. The drainage pipeline 116 is a drainage facility on the building side, and a drainage gradient is formed in the flow path inside. The drainage trap pipe line 12 and the drainage pipe line 116 used for the toilet bowl device 101 have a relatively thick pipe diameter, and it is easy to flow wash water overflowing the drainage trap to the downstream side. The drainage pipe line 116 may be a drainage socket for connecting to a drainage pipe on the building side.

  The toilet bowl device 101 further includes a control unit 124 that controls the cleaning operation, the crushing and feeding operation, and the like of the toilet bowl device 101. The control unit 124 is disposed on an operation panel or the like of a wall surface of a building. The control unit 124 controls the water supply unit 4, the crusher 18, and the discharge pump 20 according to the operation of the operation unit by the user or the setting of the user. The control unit 124 incorporates a CPU, a memory, and the like for performing these controls. The control unit 124 is electrically connected to the water supply unit 4, the crusher 18, the discharge pump 20 and the like, sends an operation signal to these devices and the like, and operates the respective devices and the like.

  The control unit 124 has a standby mode in which the water supply unit 4, the rotating body 26, and the discharge pump 20 are in a standby state, a water level reduction mode in which the stored water surface in the bowl unit 110 is lowered by driving the discharge pump 20, and the bowl unit 110. The soil grinding mode for grinding the soil inside, the washing mode for washing the bowl section 110 with the washing water supplied by the water supply section 4, the discharge pump 20 is driven to discharge the washing water in the bowl section 110 to the downstream side A control program capable of executing a discharge mode to be set, a suction swirl flow formation mode to form a swirl flow in the bowl portion 110 by driving the crusher 18, and a stored water formation mode to form stored water in the bowl portion 110 Is equipped. The control unit 124 further includes a control program capable of executing other operations described later.

  Next, the operation (action) of the toilet bowl device according to the second embodiment of the present invention described above will be described with reference to FIGS. The operation is also substantially the same as that of the first embodiment, so only the points different from the first embodiment of the second embodiment of the present invention will be described, and the same reference numerals are given to the same parts in the drawings. I omit explanation. In the operation of the toilet device according to the second embodiment, the change in the water level in the bowl portion 10 from time t1 to time t4 is different from the operation of the portable toilet device according to the first embodiment.

FIG. 21 shows the reservoir surface W0 in a standby state before the user uses the toilet body 2. In this state, the water supply unit 4 is in a stopped state, and the pulverizing device 18 and the discharge pump 20 are also stopped.
In FIG. 22, such a standby state is established at a time before time t0. For example, time t0 is the time when the user starts using the toilet body 2. The control unit 24 executes the standby mode before the use of the toilet body 2 is started. At time t0, the water level in the bowl portion 10 is the initial water level (the stored water surface W0 in the standby state).

  As shown in FIG. 22, at time t0 to t1, the user uses the toilet body 2 and the filth (stool, urine, toilet paper, etc.) A (see FIG. 7) enters the bowl portion 10 . The control unit 24 continuously executes the standby mode at time t0 to t1.

  At time t1, the cleaning mode is started. The control unit 24 continues the cleaning mode for a predetermined time T seconds of several seconds. In the cleaning mode, the control unit 24 keeps the rotating body 26 and the discharge pump 20 stopped in the standby state. In the washing mode, the water level in the bowl portion 10 is substantially constant from the initial water level. In the state where the toilet bowl device 101 is disposed, a drainage gradient is formed in the flow passage and the drainage pipeline 16 downstream of the drainage trap pipeline 12 and the drainage trap, so the drainage pump 20 is stopped. Even in the case where the washing water is supplied, the amount of supplied wash water that has exceeded the drainage trap pipeline 12 flows downstream. Therefore, the water level in the bowl portion 10 does not rise and maintains the initial water level W0.

  The toilet device 101 according to the second embodiment supplies water from the water supply unit 4 to the bowl portion 110 during the cleaning mode, but as a modification, the water supply is performed during the cleaning mode, suction swirl flow forming mode and water level lowering mode described later. Water may be continuously supplied from the portion 4 to the bowl portion 110. Thus, the instantaneous flow rate of water supply in the case where water is supplied continuously from the washing mode to the suction swirl flow formation mode and the water level lowering mode is the case where water is supplied only in the washing mode among the washing mode, suction swirl flow formation mode and water level lowering mode It is reduced than the instantaneous flow rate of water supply. When the water supply is continuously performed during the suction swirl flow formation mode, the washing water flows down while forming the swirl flow in the bowl portion 10, so that the swirl flow in the suction swirl flow formation mode can be further strengthened by the water supply. .

  The toilet bowl apparatus 101 according to the second embodiment will be described again. As shown in FIG. 22, at time t2, the control unit 124 executes a suction swirling flow formation mode for driving the crushing apparatus 18 to form a swirling flow in the bowl portion 110. In the suction swirl flow formation mode, the water level in the bowl portion 110 is the initial water level W0 at time t2, and thereafter the initial water level W0 is maintained until time t3.

  As shown in FIG. 22, at time t3, the control unit 124 executes the water level lowering mode in which the drainage pump 20 is driven to lower the level of the stored water in the bowl portion 110. As shown in FIG. 22, in the water level lowering mode, the control unit 124 causes the driving of the discharge pump 20 to start washing water, the water level of the reservoir water surface W0 of the initial water level, and the position of the reservoir water surface W2 (see FIG. 21) Drain the water only at the specified flow rate. Thereby, in the filth crushing mode executed after execution of the water level lowering mode, the accumulated water surface in the bowl portion 10 is lowered at the time of the pulverization of the filth, and the splashing of the soil during the pulverization to the outside of the bowl portion 10 is suppressed. be able to.

  The control unit 124 lowers the surface of the stored water in the bowl portion 110 to the cylindrical portion 110 a in the water level lowering mode. Thereby, in the state where stored water surface W2 is located in cylindrical part 110a where the channel diameter in top view does not change substantially, it is possible to pulverize the waste in the stored water. Even if the reservoir water surface W2 swings or waves due to the crushing of the dirt, the radial variation of the reservoir water surface W2 can be reduced in top view, and the reservoir water surface W2 containing the dirt during pulverization can be seen to spread by the user Can reduce the possibility of giving disgust.

The control unit 124 terminates the execution of the water level reduction mode when the water level detection device 13 detects a reduction in the water level in the bowl portion 110 to a predetermined water level corresponding to the reservoir surface W2 after the start of the water level reduction mode. .
The subsequent operation of the toilet apparatus according to the second embodiment is the same as that of the portable toilet apparatus according to the first embodiment, and thus the description thereof will be omitted.

In the portable toilet apparatus 101 according to the second embodiment, the control unit 124 sequentially executes the cleaning mode, the suction swirl flow formation mode, and the water level reduction mode, but as a modification, the control unit 124 performs the wash mode, suction swirl flow formation The mode and the water drop mode may be executed almost simultaneously. In the case where the cleaning mode, the suction swirl flow formation mode, the water level lowering mode are started almost simultaneously and executed, or all of the modes are started even if the start timing of these modes is slightly shifted. It also includes the case where there is a period in which the parts are executed in duplicate. For example, a case where the control unit 124 starts and executes the cleaning mode, the suction swirl flow formation mode, and the water level reduction mode almost simultaneously will be described.
At time t1, the control unit 124 starts the cleaning mode, the suction swirl flow formation mode, and the water level lowering mode almost simultaneously. That is, the control unit 124 executes the water level lowering mode after the start of the execution of the cleaning mode. In addition, the control unit 124 executes the water level lowering mode after the start of the execution of the suction swirl flow formation mode. At this time, the control unit 124 starts the water supply operation from the water supply unit 4, starts the rotation of the rotating body 26, and further drives the discharge pump 20 with the first output. The suction swirl flow formation mode is executed from the initial stage after the rotation of the rotating body 26 is started. Control unit 124 ends the water supply operation from water supply unit 4 at time t2. The control unit 124 may end the cleaning mode first at time t2. At time t2, the control unit 124 continues the rotation of the rotating body 26 and continues the driving of the discharge pump 20. At time t4, the control unit 124 stops the driving of the discharge pump 20. At time t4, the control unit 24 ends the suction swirl flow formation mode and the water level lowering mode.
When these modes are started almost simultaneously, the time from time t1 to time t4 is shorter than when these modes are sequentially executed. The control unit 124 can execute these modes almost simultaneously, can wash the bowl portion 110 by the washing mode, can form the suction swirl flow G in the bowl portion 110, and further lowers the level of the reservoir water in the bowl portion 110 It can be done.

  The toilet bowl apparatus 101 according to the second embodiment of the present invention may also be provided with a water level detection device 113 instead of the water level detection device 13 as a modification. The toilet bowl apparatus 101 according to the second embodiment of the present invention may also be provided with a vacuum drainage system 120 instead of the drainage pump 20 as a modification. The toilet bowl device 101 according to the second embodiment of the present invention may also be provided with a turn trap device 220 instead of the discharge pump 20 as a modification.

Next, the operation and effect of the toilet bowl device 101 according to the second embodiment described above will be described.
According to the toilet bowl device 101 according to the second embodiment, after the stored water level in the bowl portion 110 is lowered by the execution of the water level lowering mode, the filth is crushed in the bowl portion 110 by the execution of the filth crushing mode. Thereby, when excreted by the user, the reservoir water surface in the bowl portion 110 can be made high and wide, and dirt adhesion to a dry portion other than the reservoir water surface in the bowl portion 110 can be suppressed and the dirt is crushed At the same time, the reservoir surface in the bowl portion 110 can be lowered to suppress the splashing of the waste material from the reservoir surface during grinding out of the bowl portion 110. The effects of the toilet bowl device 101 according to the other second embodiment are also substantially the same as the effects of the portable toilet device 1 of the first embodiment, and thus the description thereof is omitted.

DESCRIPTION OF SYMBOLS 1 Portable toilet device 1a Wheel 2 Toilet body 4 Water supply part 6 Frame 6a Frame base 8 Water supply pipe 10 Bowl part 10a Tubular part 10c Water discharge port 10d Waste receiving surface 12 Drainage trap pipeline 12a Connection part 12b Rising part 12c Top part 12d Descent part 12e Horizontal direction part 12f Connection part 13 Water level detection device 14 Water storage part 16 Drain pipe line 16a Pipe line part 16b Piping 18 Pulverizing apparatus 20 Discharge pump 22 Filter 24 Control part 26 Rotating body 28 Rotation shaft 30 Electric motor 32 Pump chamber 34 Impeller 36 Rotor shaft 38 Electric motor 40 Vent valve 42 Valve seat 46 Valve member 46 Casing 46a First chamber 46b Second chamber 101 Urinal device 102 Toilet body 108 Water supply pipe 110 Bowl portion 110a Tubular portion 110c Water spout 110d Contamination receiving surface 113 Water level detection Device 113a Flow path 114 Reservoir section 16 drainage line 120 vacuum drainage device 124 control part 212 flow passage 216 drainage line 220 turn trap device 220a base A dirt a dirt A1 arrow A2 arrow A3 arrow A4 arrow A4 arrow B wash water C1 arrow C2 arrow E rotation F floor G suction Swirling flow H Opening pressure Water head J1 Arrow J2 Arrow J3 Arrow K1 Attitude K2 Attitude P0 Atmospheric pressure P1 Pressure P2 First negative pressure area pressure P3 Second negative pressure area pressure P4 Opening pressure P5 Negative pressure area pressure Q Building S Facility piping T predetermined time t0 time t1 time t2 time t3 time t4 time t5 time t6 time t7 time V3 volume V4 volume W0 stored water surface (initial water level)
W1 Reservoir surface W2 Reservoir surface X1 Water level X2 Water level X5 Appropriate water level X6 Water level X7 Water level

Claims (13)

A toilet bowl device that crushes and discharges filth,
A bowl portion provided with a filth receiving surface for forming a reservoir surface of the stored reservoir water and receiving the filth;
A crusher provided at a lower portion of the bowl portion and crushing waste in the bowl portion;
A discharge passage communicating with the bowl portion;
A discharge device for discharging the washing water in the bowl portion to the downstream side;
A control unit that controls the crushing device and the discharging device;
The control unit
A water level lowering mode for driving the discharge device to lower the level of the accumulated water in the bowl portion;
And a smashing mode for smashing the swarf in the bowl portion.
The control unit executes the filth crushing mode after the water level lowering mode is performed.   The toilet bowl device according to claim 1, wherein the filth receiving surface of the bowl portion is formed in a mortar shape. The bowl portion is formed with a cylindrical portion extending in the longitudinal direction from the lower portion of the waste receiving surface,
The toilet control device according to claim 1 or 2, wherein the control unit lowers the surface of the stored water in the bowl portion to the cylindrical portion by execution of the water level lowering mode. Furthermore, the bowl portion is provided with a water supply device for supplying washing water,
The control unit is further configured to be able to execute a cleaning mode in which the bowl portion is cleaned by the cleaning water supplied by the water supply device.
The toilet control device according to any one of claims 1 to 3, wherein the control unit executes the water level lowering mode after the execution of the cleaning mode. The control unit is further configured to be able to execute a discharge mode of driving the discharge device to discharge the wash water in the bowl portion to the downstream side,
The control unit causes the discharge mode to be performed after the execution of the filth crushing mode,
5. The flow rate per unit time discharged by the discharge device in the water level lowering mode is smaller than the flow rate per unit time discharged by the discharge device in the discharge mode. The toilet bowl device described. The above-mentioned crushing device forms a swirling flow in the above-mentioned bowl part by rotation of a part of itself,
The toilet control device according to any one of claims 1 to 5, wherein the control unit also drives the crushing device while the water level lowering mode is being performed. The above-mentioned crushing device forms a swirling flow in the above-mentioned bowl part by rotation of a part of itself,
The control unit is further configured to be able to execute a suction swirl flow formation mode for driving the pulverizing device to form a swirl flow in the bowl portion,
The toilet control device according to any one of claims 1 to 6, wherein the control unit executes the water level reduction mode after the suction swirl flow formation mode is performed.   The toilet bowl device according to any one of claims 1 to 7, wherein the drainage device is a drainage pump. Furthermore, a water level detection device for detecting the water level in the bowl portion is provided,
The control unit ends the execution of the water level reduction mode when the water level detection device detects a reduction in water level in the bowl portion to a predetermined water level after the start of the water level reduction mode. The toilet bowl device according to any one of the preceding claims. And a flexible conduit connected downstream of the discharge channel,
The toilet bowl device according to any one of the preceding claims, wherein the toilet bowl device is movably formed. Further, the discharge passage is provided with a vent valve for taking in air from the outside of the discharge passage,
The drainage path includes a rising portion rising to form a drainage trap, a top portion connected to the rising portion of the drainage trap, and a falling portion descending from the top portion.
The vent valve is
When the pressure on the discharge path side is higher than the atmospheric pressure, the valve is closed,
When the discharge path side is a first negative pressure area pressure lower than the atmospheric pressure and higher than the valve opening pressure, the valve is closed, and the discharge path side is a second negative pressure area pressure lower than the valve opening pressure Formed to be open at
A connecting portion between the vent valve and the discharge passage is provided at a height higher than a height obtained by adding a valve opening pressure head of the vent valve to the water level at the start of the filth crushing mode in the bowl portion. The toilet bowl device according to any one of claims 1 to 10.   The toilet bowl device according to claim 11, wherein the height of the water level in the bowl portion when the driving of the discharge device is stopped in the water level lowering mode is lower than the height of the water level at the start of the filth crushing mode. The volume in the bowl portion from the height of the water level in the bowl portion when the operation of the discharge device is stopped in the water level lowering mode to the height of the water level at the start of the filth crushing mode is
The volume in the discharge passage is equal to the height from the height of the connecting portion to the height obtained by adding the opening pressure head of the vent valve to the height of the water level at the start of the filth crushing mode. Toilet bowl device.

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