JP2008138378A - Chemical solution-mixed water ejector and water closet equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chemical solution-mixed water ejector which enables a chemical solution to be supplied in constant mixed quantity without reference to a change in temperature. <P>SOLUTION: This chemical solution-mixed water ejector 20, which is equipped with a chemical-solution let-off means 21 for letting off a chemical solution from a chemical-solution tank 22, mixes the chemical solution into an ejection water channel 30 via a chemical-solution supply passage 24 by driving the let-off means 21, and ejects chemical solution-mixed ejection water into a prescribed vessel 2. The ejector 20 is equipped with a temperature sensor 23 for detecting the temperature of the chemical solution. The let-off means 21 control the let-off of the chemical solution so that the quantity of the chemical solution mixed into the ejection water can be set almost constant, in accordance with the temperature detected by the temperature sensor 23. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a chemical liquid-mixed water discharge device configured to discharge water mixed with a chemical solution such as a detergent from a discharge port, and a flush toilet apparatus using the device.

  As a device that discharges tap water or the like into a container through a pipeline, a flush toilet device that discharges wash water or bubble-containing wash water to the bowl part of a toilet bowl, a bathtub device that discharges bathtub water or bubble-containing bathtub water into a bathtub, etc. Has been developed.

  Such a water discharge device is also proposed in which a chemical component is further mixed into the discharged water. Especially in a flush toilet device, in order to improve the cleaning effect, a chemical solution such as a detergent is mixed in the cleaning water to generate bubbles. What has been developed has been developed to wash the inside of the bowl with washing water containing the bubbles.

  For example, Patent Document 1 describes a configuration in which a chemical liquid tank is provided above a toilet body behind the toilet lid and the chemical liquid is poured into a washing water flow path therefrom.

  Further, in recent flush toilet devices, there are local cleaning units, deodorizing units, and other various mechanisms arranged above the toilet body behind the toilet lid. In such devices, the chemical tank is located elsewhere. For example, it arrange | positions in the downward space behind a bowl part, and supplies a chemical | medical solution to a washing water flow path through a chemical | medical solution supply pipe.

In this way, when supplying a chemical solution from a location separated from the chemical solution inlet to the washing water flow path, a certain amount of the chemical solution can be smoothly mixed with a pump or a suction device in consideration of the viscosity of the chemical solution. ing.
JP 2000-1892 A

  However, in general, the viscosity of a chemical solution is higher as the temperature is lower and has a temperature dependency that is lower as the temperature is higher. Therefore, if the temperature of the chemical solution changes, the amount of the chemical solution delivered from the chemical tank or the chemical supply pipe There is a risk that the flow rate of the chemical solution passing through the fluctuates, so that a certain amount of chemical solution cannot be mixed throughout the season and day and night. In particular, when the chemical solution tank is arranged at a location separated from the chemical solution input port, the influence becomes large.

  The present invention has been proposed in view of such circumstances, and its purpose is to reduce the cleaning effect due to seasonal changes so that the amount of chemicals mixed can be made constant regardless of temperature changes. It is an object of the present invention to provide a chemical solution mixed water discharge device, and a flush toilet device using the device.

  In order to achieve the above object, the first and second aspects of the present invention relating to a chemical solution-mixed water discharging apparatus are proposed, and the present invention relating to a flush toilet apparatus using these is further proposed.

  According to a first aspect of the present invention, there is provided a chemical solution-mixed water discharge device according to the first aspect of the present invention, comprising a chemical solution delivery means for delivering a chemical solution from a chemical solution tank, and driving the chemical solution delivery means to supply the chemical solution via a chemical solution supply path. A chemical solution mixed water discharge device that mixes into the discharge water flow path and discharges the discharge water containing the chemical solution into the specified container, equipped with a temperature sensor that detects the temperature of the chemical solution, and the chemical solution delivery means is detected by the temperature sensor Depending on the temperature, the delivery control is performed so that the mixing amount of the chemical into the discharged water becomes substantially constant.

  According to a second aspect of the present invention, there is provided a chemical solution-mixed water discharge device, wherein the chemical solution delivery means includes a pump for delivering the chemical solution from the chemical solution tank, and the control amount, the control time, or a combination thereof is varied according to the temperature detected by the temperature sensor. The pump is controlled to deliver the chemical solution.

  According to a third aspect of the present invention, there is provided a chemical solution-mixed water discharge device according to a third aspect of the present invention, comprising chemical solution delivery means for delivering a chemical solution from a chemical solution tank, and driving the chemical solution delivery means to supply the chemical solution via the chemical solution supply path. In a chemical liquid mixed water discharge device mixed in a discharge water flow path and discharging water containing chemical liquid into a predetermined container, the chemical liquid water heater includes a heater for heating the chemical liquid and a temperature sensor for detecting the temperature of the chemical liquid. The delivery means is configured to drive the heater according to the temperature detected by the temperature sensor to heat and hold the chemical solution at a substantially constant temperature.

  According to a fourth aspect of the present invention, there is provided a chemical solution-mixed water discharge device, wherein the chemical solution supply path forms a circulation path, and an ejector device through which the discharge water passes through the backflow prevention member is provided downstream of the circulation path. A part of the circulating chemical solution is sucked into the ejector device and mixed into the discharged water.

  In the chemical-mixed water discharge device according to the fifth aspect, the ejector device forms a venturi tubular water channel that sucks outside air and generates bubbles therein.

  The flush toilet device according to claim 6 is provided with the chemical-mixed water discharge device according to any one of claims 1 to 5 as a wash water discharge mechanism for discharging the wash water to the bowl portion of the toilet bowl. Yes. That is, in this case, the bowl portion of the toilet body is provided as the predetermined container of claim 1, and the washing water channel is provided as the discharge water channel of claim 1.

  According to the chemical solution-mixed water discharge device of the first aspect of the present invention, since the chemical solution delivery means controls the delivery so that the amount of the chemical solution mixed into the discharge water becomes substantially constant according to the temperature detected by the temperature sensor. In addition, there is no change in the chemical supply amount based on the change in viscosity due to the change in the outside air temperature, and it is possible to discharge the discharge water with a constant chemical mixture amount.

  According to the chemical solution mixed water discharge device of the second aspect of the present invention, the chemical solution delivery means drives the heater in accordance with the temperature detected by the temperature sensor to heat and maintain the chemical solution temperature in the chemical solution tank at a substantially constant temperature. Therefore, even if the outside air temperature fluctuates, the viscosity of the chemical liquid is kept almost constant, so that there is no fluctuation of the chemical liquid supply amount, and discharged water with a constant chemical liquid mixing amount can be discharged.

  In addition, in the case where the circulation path is formed in the chemical solution supply path, the chemical solution stays in the circulation path even when the chemical solution is not being supplied. Therefore, when the chemical solution delivery means is activated, At the same time as the chemical solution is sent out from the chemical solution tank, the chemical solution can be flowed out from the circulation path, so that the chemical solution can be quickly mixed with little fluctuation in the mixing amount.

  Moreover, in the flush toilet apparatus using any one of the above-mentioned inventions, the amount of the chemical solution mixed into the washing water can be made constant as described above, eliminating the difference in washing power due to temperature change, regardless of the season or day and night. A certain level of detergency can be maintained.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
In the following, a washing water discharge mechanism of a flush toilet apparatus will be exemplified as the chemical liquid-mixed water discharge apparatus according to the first and second aspects of the present invention, but the present invention is not limited to this.

  FIG. 1 is a block diagram showing a configuration of a main part of a flush toilet device using a chemical-mixed water discharge device as an example of the first present invention as a wash water discharge mechanism. 2 is an explanatory view schematically showing the flush structure of the flush toilet apparatus, FIG. 3 is an explanatory view of a control method for mixing chemicals in the flush toilet apparatus, and FIG. 4 is an ejector apparatus used in the flush toilet apparatus. FIG.

  As shown in FIG. 2, the toilet device 10 includes a bowl body 2, a rim portion 3, a cover 6, and a pottery or resin toilet body 1 having a siphon trap 5. The siphon trap 5 may be of a turn trap type, and the siphon trap 5 stores water at the bottom of the bowl portion 2 when the toilet is not used. In addition, an accommodating portion 7 for various devices is provided at the upper rear portion of the bowl portion 2.

  A discharge port 4 for discharging cleaning water to the bowl portion 2 is provided at the rear portion of the rim portion 3, and a cleaning water flow leading from the water pipe (not shown) to the discharge port 4 is provided behind the discharge port 4. A path 30 is formed.

  In this example, the bowl part 2 is provided as a predetermined container of the present invention, and the washing water channel 30 is provided as a discharge water channel of the present invention.

  Further, the cleaning water flow path 30 is provided with a cleaning water supply valve 31 constituted by an electromagnetic valve, and an ejector device 40 for sucking a chemical solution or gas is disposed in the flow path to the discharge port 4 on the downstream side. Yes. A venturi tubular water channel 41 (see FIG. 4) for generating fine bubbles from the taken-in gas is formed inside the ejector device 40.

  That is, when the washing operation is performed and the washing water passes through the ejector device 40, the pressure fluctuates, and the chemical solution flowing through the chemical solution supply path 24 is also sucked by the ejector effect using the negative pressure. Then, the gas sucked by the venturi tubular water channel 41 is made into fine bubbles, and the washing water containing the fine bubbles and the chemical solution is discharged from the discharge port 4 and poured into the bowl portion 2.

  Here, examples of the chemical solution include detergents such as surfactants and fragrances. Increasing the cleaning effect and deodorizing effect in the bowl part 2 can be expected by including the chemical in the cleaning water.

  As shown in FIG. 2, the ejector device 40 is provided with a chemical solution mixing port 42, and the chemical solution is supplied from the chemical solution tank 22 through the chemical solution supply path 24, a check valve 25 or the like, and from the chemical solution mixing port 42. It is sucked into the device 40 and mixed into the washing water. In the illustrated example, the chemical solution supply path 24 is provided with a circulation path 24a from which the chemical liquid exits from the chemical liquid tank 22 and returns to the chemical liquid tank 22, and a pump 21a for sending the chemical liquid is installed in the circulation path 24a. is doing.

  That is, when the washing operation is performed, the washing water flows through the washing water flow path 30. At the same time or after a certain period of time has elapsed, the pump 21a (chemical solution sending means 21) is operated to send the chemical solution to the circulation path 24a. The chemical liquid circulates in the circulation path 24 a, and a part of the chemical liquid flows out from the circulation path 24 a to the downstream side of the chemical liquid supply path 24 and is sucked into the ejector apparatus 40 by the action of the ejector apparatus 40.

  Thereafter, after the washing water flows for a predetermined time, the pump 21a is first stopped, and then the washing water supply valve 31 is closed to stop the supply of the washing water.

  After the pump 21a is stopped, the chemical solution stays in the chemical solution supply path 24 including the circulation path 24a. That is, since the chemical liquid stays in the circulation path 24a even in the stop state, when the pump 21a is operated, the chemical liquid is sent out from the chemical liquid tank 22 and at the same time, the chemical liquid flows out from the circulation path 24a. be able to.

  In FIG. 2, for convenience of illustration, the chemical liquid tank 22, the pump 21 a, the chemical liquid supply path 24, and a temperature sensor 23 described later are drawn outside the toilet apparatus 10, but of course, it is desirable to install them in the apparatus 10. In addition, since the chemical liquid is mixed into the washing water via the chemical liquid supply path 24, the chemical liquid tank 22, the pump 21a, the chemical liquid supply path 24, and the temperature sensor 23 are installed in any space in the toilet device 10. Also good. In order to shorten the chemical solution supply path 24, it may be installed in the accommodating portion 7 near and above the ejector device 40. However, in order to facilitate the operation of taking in and out the tank for supplying the chemical solution to the chemical solution tank 22, The chemical solution supply path 24 may be lengthened and installed in a space covered with the cover 6 behind the bowl portion 2 below the ejector device 40.

  In addition, a temperature sensor 23 is attached to or around the chemical tank 22 in order to detect the temperature of the chemical liquid. This temperature sensor 23 takes into account that the toilet space including the inside of the chemical tank 22 has a substantially uniform temperature. Thus, it may be used in combination with a temperature sensor used for other purposes in the toilet room or in the toilet device 10. For example, a temperature sensor provided for automatic water washing according to the temperature may be used in combination even during a non-use time period.

  In FIG. 2, 32 is a gas supply path that takes in outside air and supplies it to the ejector device 40, and 33 is a check valve that prevents backflow of gas.

  Reference numeral 20 denotes a cleaning water discharge mechanism as a chemical liquid-mixed water discharge device, and the configuration and function of the main part will be described with reference to FIG.

  The washing water discharge mechanism 20 includes a chemical solution delivery means 21 that controls the delivery of a chemical solution. The chemical solution delivery means 21 has a pump 21a for delivering a chemical solution from a chemical solution tank 22 and a delivery control (not shown) that performs the delivery control. It includes a control means (not shown) composed of a CPU or the like.

  In the present embodiment, the control mode of the pump 21a is made different based on the temperature change, considering that the viscosity of the chemical solution is higher as the temperature is lower and lower as the temperature is higher. ing. Specifically, the chemical solution delivery means 21 is configured to control the pump 21a according to the temperature detected by the temperature sensor 23 so that the amount of the chemical solution mixed into the cleaning water is constant.

  More specifically, one of the following two methods or a combination thereof is employed. In other words, the first method is a method in which the amount of chemical liquid mixed is made substantially constant by varying the control amount for the pump 21a (rotation speed, duty ratio in the case of a pump capable of duty control, etc.) according to the detected temperature. The second method is a method in which the control time for the pump 21a is changed in accordance with the detected temperature so that the amount of the chemical liquid mixed is substantially constant.

  That is, the chemical solution delivery means 21 determines that the viscosity is high when the detection temperature of the temperature sensor 23 is low and increases the control amount and the control time, and determines that the viscosity is low when the detection temperature is high. Then, the control amount and the control time are controlled to be small. Further, the control amount and the control time may be controlled in various combinations. In consideration of the control accuracy and durability of the pump 21a, it is desirable to vary the control time rather than changing the control amount.

  FIG. 3 is a diagram for explaining a control mode example of the pump 21a. In this example, the combination content of the control amount (duty ratio) and the control time is shown different for each temperature range.

  In this example, the control time of the pump 21a can be set with a remote controller (not shown). If the control time is selected from short, medium and long, the temperature at which the water is washed is shown. Accordingly, the duty ratio and control time are determined, and the pump 21a is operated based on the determined duty ratio and control time. For example, if “medium” is selected and the temperature during the water washing operation is 15 ° C., the pump 21a is controlled with a duty ratio of 50% and a control time of 2 seconds.

  In addition, the control may be performed by changing only the control time, not the combination of the control amount and the control time. However, in the illustrated example, after the cleaning water containing the chemical solution is spouted, the cleaning water not containing the chemical solution is allowed to flow to the inside of the trap 5. In order not to keep the detergent in the water, the water discharge of the cleaning water containing the chemical solution is finished within a predetermined time. Because of such time restrictions, the control time cannot be lengthened and the control is not performed. The amount is controlled by increasing. Specifically, in the case where the control time in FIG. 3 is “long” and the temperature is “0 to 5 ° C.”, if the duty ratio is 50% like other temperatures, the control time is reduced to about 15 seconds. By doing so, the same amount of chemical solution can be mixed, but in 15 seconds the planned discharge time of the cleaning water will be exceeded, and cleaning with cleaning water that does not contain the chemical solution will not be possible. The ratio is 80%.

  Further, in order to make the amount of chemical solution mixed constant, the amount of chemical solution sent out from the chemical solution tank 22 may be controlled to be constant. However, in consideration of the change in the flow rate in the chemical solution supply path 24 due to the change in the viscosity of the chemical solution, the chemical solution The delivery amount from the tank 22 may not be constant, but may vary depending on the temperature.

  The control of the pump 21a as described above may be performed not only in the water washing operation but also in the washing in the automatic washing mode (cleaning mode).

  Next, mixing of the chemical solution into the ejector device 40 and generation of bubbles will be described with reference to FIG.

  The main body of the ejector device 40 is formed by integrally connecting an upstream pipe member 40a, a midstream pipe member 40b, and a downstream pipe member 40c on the same axis. The upstream pipe member 40a is formed with a conical cylindrical jet nozzle 44 on the downstream side thereof. The middle flow pipe member 40b is formed with a gas mixing port 43 communicating with the gas supply channel 32 on the upstream side, a chemical solution mixing port 42 communicating with the chemical solution supply channel 24 and a gas mixing chamber 45, and a venturi tubular water channel 41 formed on the downstream side. ing.

  The ejection nozzle 44 of the upstream pipe member 40a is connected so as to be fitted on the upstream side portion of the middle flow pipe member 40b, and the gas mixing chamber 45 is closed on the upstream side. When the cleaning water flows into the cleaning water flow path 30, the cleaning water is ejected from the ejection nozzle 44. At this time, a negative pressure is generated in the gas mixing chamber 45, and gas and chemical liquid are mixed due to the ejector effect. It is the structure that is performed.

  Further, as described above, the ejector device 40 forms a venturi tubular water channel 41, and this venturi tubular water channel 41 removes the bubble-like gas in the cleaning water mixed in the upstream gas mixing unit 46 from the downstream side. It has the effect | action which refines | miniaturizes by the fine bubble production | generation part 47. FIG.

  Specifically, in the venturi tubular water channel 41, when the bubbles pass through the narrowed diameter portion 48 that is the inlet of the venturi tubular water channel 41, the flow velocity is increased and the pressure is reduced to expand, and the bubbles expand at the enlarged diameter portion 49 of the venturi tubular water channel 41. As the cross-sectional area of the washing water channel 30 increases, it is pressurized and contracts, but is divided by the shearing force generated at this time, and is refined by the microbubble generator 47.

  Furthermore, since the chemical liquid components mixed and added to the cleaning water gather at the gas-liquid interface between the fine bubbles and the cleaning water and the chemical concentration becomes high, the bubble state is maintained for a long time and water is discharged from the discharge port 4. After that, it stays in the bowl part 2 and the dirt adhering to the inner surface of the bowl part 2 is peeled off and decomposed. In addition, since the fine bubbles improve the cleaning effect, it leads to water saving and also has a silent effect.

  Needless to say, if a detergent is used as a chemical solution, bubbles can be generated and refined by the detergent component without using such a venturi tubular water channel 41.

  As the backflow prevention member 25, a chemical solution injection member having a backflow prevention structure as shown in FIG. 5 may be used.

  FIG. 5 is a diagram showing the structure and operation of the chemical solution injection member. (A) to (c) are a plan view, a front view, a side view, and (d) and (e) are non-suction and suction, respectively. It is an operation state figure made into a partial section. Although this chemical | medical solution injection | pouring member 25 does not have the structure of a check valve, it has the backflow prevention effect | action similar to a check valve by the structure.

  The chemical injection member 25 includes a base portion 25b formed in a cylindrical shape with a resin or the like, and a delivery portion 25c made of a soft material such as rubber. A chemical solution inlet 25a is formed at the upper end of the base portion 25b, and the delivery portion 25c. 25 d of chemical | medical solution outlets are formed in the lower end of (refer Fig.5 (a)-(c)).

  In a state where the pump 21a is stopped and no chemical liquid is sucked, the rubber-like delivery part 25c is in a contracted state and the chemical liquid outlet 25d is closed as shown in FIG. 5 (d), but when the pump 21a is operated, the flowing chemical liquid 5e, the delivery part 25c expands and expands, the outlet 25d opens, and at the same time the suction force of the ejector device 40 acts, and the chemical solution flows out from the outlet 25d. By inserting the chemical solution injection member 25 having such a structure into the chemical solution mixing port 43, a simple chemical solution backflow prevention structure and a chemical solution mixing port 22 structure can be formed. Moreover, the ejector effect by the ejector apparatus 40 can be made to act effectively.

  FIG. 6 is a block diagram showing a configuration of a main part of a flush toilet apparatus using a chemical liquid-mixed water discharging apparatus which is an example of the second present invention.

  The washing water discharge mechanism 20A employed in the flush toilet apparatus is provided with a heater 26 that can adjust the temperature of the chemical solution in the chemical solution tank 22.

  According to the washing water discharge mechanism 20A, the chemical solution delivery means 21 controls the heater 26 according to the temperature detected by the temperature sensor 23, thereby maintaining the temperature of the chemical solution stored in the chemical solution tank 22 at a constant temperature. The variation of the viscosity of the chemical solution in the chemical solution tank 22 can be prevented. That is, when the temperature detected by the temperature sensor 23 is low, the heater 26 is driven and heated, and when the temperature detected by the temperature sensor 23 is high, the heating of the heater 26 is stopped. The chemical solution in the tank 22 is maintained at a substantially constant temperature.

  With such a configuration, since the viscosity of the chemical liquid in the chemical liquid tank 22 becomes constant, even if the pump 21a is driven with a constant control amount and a constant control time when the water washing operation is performed, the chemical cleaning water It is possible to make the amount of contamination into almost constant.

  In addition, since it is the same as that of FIGS. 1-5 about other components of the flush toilet apparatus other than the flush water discharge mechanism 20A, description and illustration are omitted.

  As described above, the washing water discharge mechanisms 20 and 20A of the flush toilet apparatus 10 are shown as examples of the chemical-mixed water discharge apparatus according to the first and second aspects of the present invention. May be. In particular, if an ejector device that forms a venturi tubular water channel capable of generating bubbles is used, it can also be used in a jet bath, and fine bubbles and bathing agents (chemicals) can be mixed into bath water, resulting in various effects. .

It is the block diagram which showed the principal part structure of the washing water discharge mechanism (chemical | medical solution mixed water discharge device) of the flush toilet apparatus which is 1st this invention. It is a schematic explanatory drawing of the flush toilet apparatus. It is a figure for demonstrating the control aspect of a pump. It is principal part sectional drawing of the ejector apparatus used with the flush toilet apparatus. It is the figure which showed the structure and operation | movement of the chemical | medical solution injection | pouring member which is an example of the backflow prevention member used with the flush toilet apparatus, (a)-(c) is a top view, a front view, a side view, (d), (e ) Is an operation state diagram showing a partial cross section during non-suction and during suction. It is the block diagram which showed the principal part structure of the flush toilet apparatus (chemical | medical solution mixing water discharge apparatus) which is an example of 2nd this invention.

Explanation of symbols

10 Flush toilet device 1 Toilet body 2 Bowl (predetermined container)
4 Discharge port 20 Wash water discharge mechanism (chemical solution mixed water discharge device)
21 Chemical liquid delivery means 21a Pump 22 Chemical liquid tank 23 Temperature sensor 24 Chemical liquid supply path 24a Circulation path 25 Check valve, chemical liquid injection member (backflow prevention member)
26 Heater 30 Washing water flow path (discharge water flow path)
40 Ejector Device 41 Venturi Tubular Channel 42 Chemical Solution Mixing Port

Claims (6)

A chemical solution delivery means for delivering a chemical solution from a chemical solution tank is provided, the chemical solution delivery device is driven, the chemical solution is mixed into the discharge water flow path via the chemical solution supply path, and the discharge water containing the chemical solution is discharged into a predetermined container. In the chemical-mixed water discharge device designed to
Provided with a temperature sensor that detects the temperature in or around the chemical tank,
The chemical liquid delivery device, wherein the chemical delivery means controls the delivery so that the amount of the chemical liquid mixed into the discharge water becomes substantially constant according to the temperature detected by the temperature sensor. In claim 1,
The chemical solution delivery means includes a pump for delivering the chemical solution from the chemical solution tank, and controls the pump by varying the control amount, control time, or a combination thereof according to the temperature detected by the temperature sensor, The chemical-mixed water discharge device is configured to deliver the liquid. A chemical solution delivery means for delivering a chemical solution from a chemical solution tank is provided, the chemical solution delivery device is driven, the chemical solution is mixed into the discharge water flow path via the chemical solution supply path, and the discharge water containing the chemical solution is discharged into a predetermined container. In the chemical-mixed water discharge device designed to
A heater for heating the chemical solution, and a temperature sensor for detecting the temperature in or around the chemical solution tank,
The chemical solution delivery device, wherein the chemical solution delivery means drives the heater according to the temperature detected by the temperature sensor to heat and maintain the chemical solution at a substantially constant temperature. In any one of Claims 1-3,
The chemical solution supply path forms a circulation path, and an ejector device through which the discharge water passes through the backflow prevention member is provided downstream from the circulation path, and a part of the chemical solution circulating through the circulation path is provided in the ejector device. A chemical-mixed water discharge device configured to be sucked into and mixed into the discharged water. In claim 4,
The said ejector apparatus forms the venturi tubular water channel which suck | inhales external air and generate | occur | produces a bubble in the inside, The chemical | medical solution mixing water discharge apparatus characterized by the above-mentioned.   A flush toilet apparatus comprising the chemical liquid-mixed water discharge device according to any one of claims 1 to 5 as a wash water discharge mechanism for discharging flush water to a bowl portion of a toilet bowl.

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