JP2009172079A - Bathtub washing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathtub washing device capable of efficiently inhibiting stain caused by microbes such as the slime generated inside a bathtub by using sterile water. <P>SOLUTION: A control device performs a bathtub rinsing step after performing a bathtub washing step, and performs a waiting step after performance of the bathtub rinsing step. Most of tap water discharged in the bathtub rinsing step is drained to a drain formed on the bottom of the bathtub, and the quantity of remaining water is reduced in the waiting step to prevent the sterile water to be discharged afterward from being diluted and to retain the sterile water within the bathtub. After that, a bathtub sterilization step is performed to retain the sterile water inside the bathtub. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a bathtub cleaning device that cleans and sterilizes dirt in a bathtub.

  Dirt in the bathroom includes wastes such as soap and shampoo used to clean the human body, and dirt (proteins, carbohydrates, fats, salts, etc.) generated from the human body. Then, since slime occurs, it is necessary to clean regularly.

In order to prevent the occurrence of slime, a technique for spraying sterilized water in the bathroom has been proposed (see Patent Document 1). However, in the technique disclosed in Patent Document 1, since only sterilizing water is sprayed, organic matter dirt such as dirt remaining on the inner surface of the bathtub or soap scum scattered from the washing area reacts with sterilizing water. Then, there was a risk of reducing the efficacy of the sterilizing water. Therefore, before the sterilizing water is discharged, it is conceivable to wash the inside of the bathtub by discharging cleaning water mixed with a detergent in the bathtub. However, after the cleaning water is discharged, it is necessary to discharge water for rinsing into the bathtub to drain the cleaning water and organic dirt. Even if the water for rinsing stays in the bathtub, that is, when a large amount of residual water remains in the bathtub, even if the sterilizing water is discharged into the bathtub, the sterilizing water is immediately diluted by the residual water. At the same time, there is a problem that the sterilization efficiency is poor because the waste water is discharged to the drain outlet in a short time.
Japanese Patent Laid-Open No. 9-220273

  The present invention provides a bathtub cleaning device that can efficiently suppress microbial dirt such as slime generated in a bathtub using sterilizing water.

  According to one aspect of the present invention, a bathtub cleaning process for discharging a cleaning liquid containing a detergent in the bathtub to remove organic dirt in the bathtub, and a bathtub rinsing process for discharging tap water into the bathtub and washing out the cleaning liquid. And a tub sterilization step for discharging sterilizing water into the tub and sterilizing the inside of the tub, and a standby step for stopping washing water, tap water, and sterilizing water for a predetermined time. A control device is provided, and the control device executes the bathtub rinsing step after executing the bathtub washing step, and executes the standby step after the bathtub rinsing step to discharge water in the bathtub rinsing step. Most of the water is discharged to a drain outlet formed at the bottom of the bathtub, and the waiting step leaves the sterilizing water to be discharged later in the bathtub so as to suppress dilution of the sterilizing water to be discharged later. water After the small state, bathtub cleaning device is provided for causing staying sterilizing water into the bath by running the bath sterilization process.

  ADVANTAGE OF THE INVENTION According to this invention, the bathtub washing | cleaning apparatus which can suppress effectively microbial stains, such as a slime which generate | occur | produces in a bathtub, using sterilization water is provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Drawing 1 is a mimetic diagram for explaining a bathroom unit provided with a bathroom washing device concerning an embodiment of the invention.
FIG. 2 is a piping system diagram of the water discharge portion.

As shown in FIG. 1, the bathroom 3 of the bathroom unit 1 includes a bathtub 4, a washing floor 5, a counter 6, a washing area cleaning / sterilizing means 7, a bathtub cleaning / sterilizing means 8, a control unit 2, a drainage section 63, and an input means. 61 etc. are mainly provided. In addition, a faucet, a shower hose, a hot water supply control panel, a mirror and the like (not shown) are appropriately provided.
The counter 6 is disposed directly above the washing floor 5 and below the faucet body to which a shower hose (not shown) disposed above the flange surface of the bathtub 4 is connected. In general, there is an accessory stand for placing accessories such as shampoo above the flange surface of the bathtub 4, but the counter 6 in this specification is different. Further, as shown in FIG. 1, the counter 6 is larger than the accessory table and has a space for storing not only small items such as shampoo but also a wash basin and other items necessary for washing the human body.
The water discharge section 9 of the washing place cleaning / sterilization means 7 is provided below the counter 6, and a plurality of water discharge ports 10 of the bathtub cleaning / sterilization means 8 are provided so as to open on the side wall of the bathtub 4. As shown in FIG. 2, the water channel pipe that has passed through the sterilizing water generating means 12 and the washing water generating means 13 branches, and is divided into an on-off valve 20 and an on-off valve 21, which are connected to the water outlet 10 and the water outlet 9, respectively. Yes. Further, a check valve 17 and an air release valve 18 are connected upstream of the sterilizing water generating means 12 and the washing water generating means 13, and are connected to a water pipe 39 via the opening / closing valve 16. Although the on-off valve 20 and the on-off valve 21 are used in FIG. 2, it is also possible to switch the water channel using a three-way valve. Here, the sterilizing water generating means and the washing water generating means are controlled so that they cannot be executed simultaneously. This is because even if the sterilizing water generating means is executed on the cleaning water and the sterilizing component is added, the cleaning liquid and the sterilizing component react and the sterilizing effect decreases. Moreover, the on-off valve 20 and the on-off valve 21 do not open simultaneously. This is because when the water is discharged from both the water discharge port and the water discharge portion, the water supply pressure is not distributed, so that the water force is weakened and water cannot be discharged to a desired position.
Here, the washing place cleaning / sterilizing means 7 functions as a washing place washing water discharging means for discharging by washing tap water or washing water into the washing place (washing place washing step), and sterilizing by discharging the sterilizing water to the washing place. It has a function (washing field sterilization process) as a sterilizing water spouting means. In this case, as will be described later, if the sterilizing water generating means 12 is operated with the on-off valve 20 closed and the on-off valve 21 opened, the washing place cleaning / sterilizing means 7 becomes the sterilizing water spouting means, and the sterilizing water is generated. If the action of the means 12 is stopped, the washing place cleaning / sterilizing means 7 becomes a washing place washing water discharge means.
In addition, the bathtub cleaning / sterilizing means 8 has a function of cleaning water by discharging cleaning water containing detergent (tub cleaning process), a function of cleaning the bathtub with tap water (tub rinsing process), and sterilizing the bathtub. It has a function (tub sterilization process) of discharging water and sterilizing. In this case, as will be described later, if the washing water generating means 13 is operated with the on-off valve 20 opened and the on-off valve 21 closed, the bathtub washing / sterilizing means 8 becomes the washing water discharge means, and produces sterilized water. If the means 12 is operated, the bathtub cleaning / sterilizing means 8 becomes the sterilizing water spouting means, and if the actions of the cleaning water generating means 13 and the sterilizing water generating means 12 are stopped, the bathtub cleaning / sterilizing means 8 becomes the tap water spouting. It becomes a means.

  The bathtub cleaning / sterilizing means 8 has a role of cleaning the bathtub 4 (tub cleaning). The washing place cleaning / sterilizing means 7 has a role of washing the washing place 5 (washing place washing). In the present embodiment, the bathtub cleaning / sterilization means 8 executes the bathtub cleaning, the washing area cleaning / sterilization means 7 executes the washing area cleaning, or the combination of the bathtub cleaning and the washing area cleaning. Also in the case where the sterilizing water is generated, the sterilizing water generated by the sterilizing water generating means is discharged into the bathtub or / and the washing place at the end of the operation. By carrying out like this, the inner wall of the bathtub 4 can be sterilized with a sterilizing component, the sterilizing component can be adhered to the inner wall for a long time, and slime can be suppressed. In addition, the surface of the washing floor can be sterilized with a sterilizing component, and the sterilizing component can be adhered to the surface for a long time to suppress slime. Moreover, the sealing water of the drain trap provided in the drain part 63 can be replaced with sterilizing water, and the effect of suppressing microbial dirt such as slime and pink dirt in the drain trap can be maintained for a long time.

Hereinafter, the configuration of the bathroom unit will be described more specifically with reference to FIGS. 1 and 2.
Below the counter 6 is a space formed between the back surface of the counter 6 and the upper surface of the washing place 5 and between the protruding end (front surface end) of the counter 6 and the support end (bathroom wall surface) of the counter 6. An area.
The side wall of the bathtub 4 on the washing room 5 side is covered with an apron 4 a, and a space is provided between the apron 4 a and the side wall of the bathtub 4. And it is this space, Comprising: The sterilization water production | generation means 12 and the washing water production | generation means 13 are provided in the corner vicinity of the bathtub 4. FIG.

  The sterilizing water generator 12, the on-off valve 20, the on-off valve 21, the washing water generator 13, and the on-off valve 16 are electrically connected to the control unit 2 provided outside the bathroom 3, and will be described later by signals from the control unit 2. It is possible to control each discharged water, generate sterilizing water, generate cleaning water, shut off the tap water supply, and the like.

  The check valve 17 allows water to flow from the water pipe 39 to the sterilizing water generating means 12 and the washing water generating means 13, but prevents the generated sterilizing water and washing water from entering the water pipe 39 side. It is connected in a direction that allows it. The air release valve 18 has a role of preventing sterilizing water and cleaning water from entering the water pipe 39 side.

  The check valve 17 may be connected to hot water supply means (not shown) so that hot water can be discharged. By doing so, since the binding between the dirt and the cleaning liquid is promoted, the cleaning effect can be further enhanced. In the specification of the present application, “water” and “tap water” include not only cold water but also hot water. However, it does not contain water that has been added with bactericidal or detergent components or electrolyzed.

The cleaning water generating means 13 generates cleaning water by adding detergent components to the water. Examples of the cleaning water generated by the cleaning water generating means 13 include water containing a detergent, ozone water in which ozone gas is dissolved in water, and acidic water and alkaline water obtained by electrolysis of water. it can.
The detergent can be, for example, a synthetic detergent. Synthetic detergents are easy to obtain and handle, and various detergents can be used as appropriate. For example, the water in the detergent tank is pumped to the part where the detergent and water are mixed with a pump to generate water containing the detergent (wash water). It can be such that it is poured into water discharge.

  Here, considering environmental load, it is preferable to use ozone water, acidic water, alkaline water, or the like rather than water containing detergent. Ozone water is effective not only for efficiently decomposing and removing organic substances such as dirt adhered in the bathroom, but also for sterilization. In addition, acidic water is effective in efficiently stripping off soap residue adhering to the bathroom, and alkaline water is effective in efficiently stripping off sebum stains adhering to a washing place.

FIG. 3 is a unit diagram composed of the piping diagram of FIG.
When the on-off valve 16 opens, the water flowing into the unit flows in the order of the air release valve 18 and the check valve 17. In FIG. 3, two air release valves (18a, 18b) are provided to strengthen the backflow prevention performance of the detergent to the water pipe 39. Downstream from the reverse water valve 17, the cleaning water containing the detergent merges with the cleaning water generation means 13, and the cleaning water containing the detergent enters the sterilizing water generation means 12, and the bathtub cleaning nozzle ( Water is discharged to either the water discharge port) or the washing place washing nozzle (water discharge unit).

  FIG. 5 is a piping diagram when only bathtub cleaning is performed. The piping to FIG. 2 and the sterilizing water production | generation means 12 is the same, and is connected to the spout 10 opened to the side wall of the bathtub 4 only by bathtub cleaning. After the opening / closing valve 16 is opened, when the cleaning water generating means 13 acts, the cleaning water containing the cleaning component is discharged into the bathtub, and when the sterilizing water generating means 12 acts, the sterilizing water is discharged into the bathtub. . When the action of both the washing water generating means 13 and the sterilizing water generating means 12 is stopped, tap water is discharged into the bathtub.

  When the on-off valve 16 is closed and the operation of both the washing water generating means 13 and the sterilizing water generating means 12 is stopped, no water is discharged into the bathtub. (Operation stopped or standby process)

  As sterilizing water produced | generated by the sterilizing water production | generation means 12, the water containing a bactericidal substance or ion can be illustrated. Specifically, free chlorine, antibacterial metals (eg, silver, copper, zinc, etc.) or their ions, ozone, ozone-containing water, combined chlorine, organochlorine-based disinfectant, organophosphate-based disinfectant, veloxocarbonate ion Or the salt, alcoholic disinfectant, etc. can be mentioned.

Such sterilizing water can be generated using, for example, an electrolysis method.
FIG. 10 is a schematic diagram for explaining the silver ion water generating means 19 as an example of the electrolysis method.
In the silver ion water generating means 19, silver electrodes 19a and 19b containing silver are arranged in parallel across a water channel, and an electric current is passed through the silver electrodes 19a and 19b, whereby electrolysis is performed between water and the electrodes. A reaction takes place. Since silver ions have a bactericidal power even in a minute amount, it is sufficient to flow a current of several mA to several tens mA, and there is an advantage that the electrolysis power can be made extremely low. In FIG. 10, in addition to between the silver electrodes 19a and 19b, the side where the electrodes are not opposed is also characterized in that water passes. By providing a water passage other than between the silver electrodes, an increase in pressure loss can be prevented, and sterilizing water can be discharged at a large flow rate. Further, if the distance between the silver electrodes is shortened, the voltage required for electrolysis is reduced, and silver elution can be controlled with low power consumption.

  Silver ions, like ozone and free chlorine, react with dirt instantly, do not disappear, and have the feature of maintaining antibacterial activity over time. Adhesion is applied to the inner wall of the bathtub, the floor surface of the washing tub, and the inner wall surface of the drain, and the coating is performed so as to cover the surface. Silver ions having a coating action and a long-term antibacterial action on the surface of the material are very preferable for preventing slime and odor derived from microorganisms formed in the bathroom of the present invention.

  In addition, it is preferable that silver ions are 10 ppb or more and 200 ppb or less. If it is less than 10 ppb, the sterilization effect may be too weak, and if it exceeds 200 ppb, darkening may occur and the aesthetics may be impaired.

  Moreover, free chlorine containing water can be produced | generated by electrolyzing the water (for example, tap water) containing a chlorine ion using the electrode for chlorine generation. In addition, it is not necessarily limited to the production | generation of the sterilization water by an electrolysis method, For example, the concentrate of a sterilization water, a chemical | medical agent, etc. may be produced | generated beforehand and this may be thrown in with a pump etc. suitably.

In the case of using the electrolysis method, the control unit 2 performs control such as power ON / OFF and output adjustment, and in the case of supplying a preliminarily produced sterilizing water concentrate or medicine, a pump or the like The input means is controlled.
In addition, only the water can be discharged without operating the sterilizing water generating means 12.
Moreover, it is preferable to discharge the sterilizing water in a mist form so that the sterilizing water is likely to stay on the floor surface of the washing place 5.
Moreover, when using an electrolysis method, it is preferable to drain water after the operation of the sterilizing water generating means 12 is completed. When water is accumulated in the electrolyzer, electrolysis is possible, so concentrated sterilized water is generated when voltage is continuously applied to the electrolyzer due to malfunction. Because it becomes. For example, in the case of silver ions, it is preferable to drain water from the electrolytic cell because a high concentration may cause darkening.
In the case where sterilizing water is discharged to both the bathtub and the washing place, the on-off valve 21 may be opened with the upstream side opening / closing valve 16 closed after the sterilizing water is discharged. If it does so, since inflow of air will be attained from the air release valve 18, sterilization water will be discharged | emitted outside through the water discharging part 9 from the inside of an electrolytic vessel.
In the case of performing sterilizing water spouting in the bathtub, the water draining port 10 may be provided at the bottom of the bathtub and installed at a position lower than the sterilizing water generating means 12. If it does in that way, inflow of air will arise from the air release valve 18, and sterilization water will be discharged | emitted in the bathtub through the spout 10 from the inside of an electrolytic vessel.

FIG. 6 is a time chart of a bathtub cleaning mode in which only the bathtub 4 is cleaned.
FIG. 7 is a flowchart of the bathtub cleaning mode.

These exemplify the case where a predetermined cleaning process is performed automatically.
In addition, the cleaning / sterilization of the bathtub 4 and the cleaning / sterilization of the washing place 5 described later are performed in conjunction with each other (the bathroom fully automatic washing mode), and the washing / cleaning mode for washing / sterilizing only the washing place 5 is provided. You may do it.

As shown in FIGS. 6 and 7, first, the automatic drain valve 72 is opened, and the water (residual hot water) in the bathtub 4 is drained. After time T ₁ has elapsed, the waste water from the tub 4 is completely finished. After the water in the bath is drained of time T ₂ in the opened closing valve 16 the washing water water and detergent are mixed from the water discharge port 10 by spouting in bath 4 washed in the bathtub 4 (tub washing Step). At this time, the cleaning water containing the synthetic detergent can be discharged into the bathtub 4 from the water outlet 10 by operating the cleaning water generating means 13. As a result, the hair remaining in the bathtub can be drained, or organic matter adhering to the inner surface of the bathtub can be raised. The breakdown of the washing process of the bathtub 4 can be exemplified by, for example, first carrying out pre-washing by discharging only water and then performing washing water spouting (spreading) process. The water-only water discharge and the wash water discharge may be repeated a plurality of times.

Next, bathtub 4 water or washing water which has water discharge into the post over time T ₄ to be drained of all, for rinsing by opening the on-off valve 16 water spout 10 by spouting in bath 4 in the bathtub 4 “Rinsing” is performed (rinsing step). At this time, only the water is discharged without operating the washing water generating means 13. By doing so, no hair or organic dirt remains in the bathtub.

Next, a waiting process is provided in which all the water used for rinsing is drained, time T ₆ , the on-off valve 16 is closed and water, washing, or sterilizing water is not discharged from the water outlet. After most of the water in the bathtub is drained by the standby process, the on-off valve 16 is opened to sterilize the sterilized water from the spout 10 to the tub 4 (sterilized water spouting). For example, the silver ion water production | generation means 19 (sterilization water production | generation means 12) is made to act, and the silver ion water is discharged to the bathtub 4. FIG. Thus, since all the water for rinsing discharges sterilization water after draining from the inside of a bathtub, since it will be in a state with little residual water in a bathtub, it suppresses dilution of the sterilization water discharged later. Can do. Moreover, since the sterilizing water discharged later is not drained vigorously with the remaining rinsing water, the sterilizing water can be retained in the bathtub. Note that the automatic drain plug may be closed after all the rinsing water has been drained and before, during or immediately after discharging the sterilizing water. By doing in this way, since the sterilizing water can be retained in the bathtub, the sterilizing water can be retained in the bathtub until the automatic drain plug is reopened, so the sterilizing effect is further improved. .

Then, after the elapse of the time T _7, closing the on-off valve 16, to stop the action of the sterilizing water producing unit 12, the operation of the sterilization and cleaning of the bath is completed. The operation of the sterilizing water generating means 12 is stopped (for example, the energization of the silver ion water generating means 19 is stopped), and at the same time, the on-off valve 16 is closed to stop the supply of water to the sterilizing water generating means 12. Also good. By doing in this way, it can prevent that the sterilization water which has stayed in the bathtub is diluted with the water discharged later.

Here, if the time of the main work is exemplified, for example, the time T ₁ can be about 2 minutes, the time T ₃ can be about 7 minutes to 10 minutes, and the time T ₅ can be about 30 seconds. Time T ₆ corresponding to aim the sterilizing water jetting before the waiting time of the present invention is not less than 15 seconds, the water in the bathtub after being drained to the water discharge sterilizing water. The discharge time (time T ₇ ) of the sterilizing water (for example, silver ion water) is intended to maintain the sterilizing effect (antibacterial activity) after cleaning, and can be made shorter than the cleaning time (time T ₃ ). . In addition, this invention is not necessarily limited to these, Each time setting can be suitably changed according to the frequency of washing | cleaning, the grade of dirt, etc.

FIG. 8 is a time chart in the case where the washing and sterilization of the bathtub 4 and the washing and sterilization of the washing place 5 are performed in conjunction (the bathroom fully automatic washing mode).
FIG. 9 is a flowchart of the bathroom fully automatic cleaning mode.

As shown in FIGS. 8 and 9, first, the automatic drain valve 72 is opened, and the water (residual hot water) in the bathtub 4 is drained. After time T ₁ has elapsed, the waste water from the tub 4 is completed. After the water in the bath is drained of time T _2, the opened closing valve 16 and the on-off valve 20, the water or wash water from the water discharge port 10 by spouting in bath 4 washed in the bathtub 4 (bathtub Cleaning). At this time, if the washing water generating means 13 is operated, water (washing water) containing a synthetic detergent or the like can be discharged from the water outlet 10 into the bathtub 4. The breakdown of the cleaning operation of the bathtub 4 can be exemplified by, for example, first discharging only water and performing pre-cleaning first, and then performing cleaning water discharging (spreading). You may repeat washing | cleaning with water-only water discharge and washing water water discharge several times.

Next, after the elapse of time T _{4 when} drainage from the bathtub 4 can flow, the on-off valve 16 and the on-off valve 20 are opened to discharge water from the spout 10 into the bathtub 4 to “rinse” the bathtub 4. . At this time, only the water is discharged without operating the washing water generating means 13.

  Next, the on-off valve 16 and the on-off valve 21 are opened, and the sterilizing water is discharged from the water discharge section 9 to the washing place 5 to perform sterilization (sterilizing water discharge). For example, the silver ion water production | generation means 19 (sterilization water production | generation means 12) is made to act, and silver ion water is discharged to the washing place 5. At this time, the on-off valve 20 is closed so that the sterilizing water does not flow into the water outlet 10 so that the sterilizing water is not discharged into the bathtub.

Then, after the elapse of the time T _7, closing the on-off valve 16 and the on-off valve 21, to stop the action of the sterilizing water producing unit 12, disinfection and cleaning of the washing space is completed.

  Next, the on-off valve 16 and the on-off valve 20 are opened, and sterilizing water is discharged from the spout 10 to the bathtub 4 to perform sterilization (sterilizing water spouting). For example, the silver ion water production | generation means 19 (sterilization water production | generation means 12) is made to act, and the silver ion water is discharged to the bathtub 4. FIG.

Then, after the elapse of the time T _9, it closed off valve 16 and the on-off valve 20, to stop the action of the sterilizing water producing unit 12, disinfection and cleaning of the bath is completed.

  If it does in this way, since the sterilization of the washing place 5 can be completed in the drainage of the water for the rinse from the bathtub 4, there exists an advantage that work time can be shortened. Moreover, since it is possible to secure a sufficient time until the sterilizing water is discharged after the water for rinsing the bathtub 4 is discharged, the tub 4 has a sufficient time for the water for rinsing to be discharged. Can do. Moreover, since the residual water in the bathtub surface of the bathtub 4 decreases, it becomes difficult to dilute sterilization water on the bathtub surface of the bathtub 4, and it suppresses the proliferation of bacteria on the bathtub surface and makes it difficult to slime, so the bathtub user The slime on the bathtub surface that can be recognized immediately can be suppressed for a long time. As described above, it is preferable to leave a sufficient time interval between the end of water discharge for rinsing to the bathtub and the start of sterilizing water discharge. A time interval is inevitably provided by simultaneously performing sterilizing water discharge at the washing place and then washing the bathtub with sterilizing water. Therefore, sterilizing water can be effectively acted on the wall surface of the bathtub 4 and the floor surface of the washing place 5, and the total operation time can be further shortened.

  The structure of the drainage part 60 is shown in FIGS. This is a drain trap having a so-called one-trap structure in which the drainage of the bathtub 4 side and the washing place 5 side merge. Such a one-trap drain trap can be reliably sterilized by the present invention because only one drain trap is installed in the bathroom. In particular, by performing the above-described operation of discharging the sterilizing water into the bathtub and the washing place after washing the bathtub, the sterilizing water can stay in the drain trap for a long time, and the water and washing used for washing the bathtub Water does not replace the sterilizing water in the drain trap.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. As for the above-described specific examples, those skilled in the art appropriately modified the design are included in the scope of the present invention as long as they have the characteristics of the present invention.

  Further, the shape, size, material, arrangement, and the like of each element constituting the above-described specific example are not limited to those illustrated, and can be changed as appropriate.

  In addition, the elements included in each of the specific examples described above can be combined as much as possible, and combinations thereof are also included in the scope of the present invention as long as they include the features of the present invention.

It is a schematic diagram for demonstrating the bathroom unit provided with the bathroom cleaning apparatus which concerns on embodiment of this invention. It is a piping system diagram which performs washing and sterilization of a bathtub and a washing place in conjunction. It is a unit figure which performs washing and sterilization of a bathtub and a washing place in conjunction. It is a piping system diagram which performs washing and sterilization of a bathtub. It is a unit figure which performs washing and sterilization of a bathtub. It is a time chart which performs washing and sterilization of a bathtub. It is a flowchart which performs washing | cleaning and disinfection of a bathtub. It is a time chart which performs washing and sterilization of a bathtub and a washing place in conjunction. It is a flowchart which performs washing | cleaning and disinfection of a bathtub and a washing place in conjunction. It is a schematic diagram for demonstrating the silver ion water production | generation means as an illustration by what is based on an electrolysis method. It is a schematic diagram for demonstrating a drainage part. It is a schematic cross section for explaining a drain trap of a drain part.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Bathroom unit, 2 Control part, 3 Bathroom, 4 Bathtub, 5 Washing place, 6 Counter, 7 Washing place washing | cleaning / disinfection means, 8 Bath washing / sterilization means, 9 Water discharge part, 10 Outlet, 12 Disinfection water production | generation means, 13 Washing Water generation means, 60 drainage section, 61 input means, 62 drainage trap, 71 sealed water

Claims (4)

A bathtub cleaning process for removing cleaning liquid containing detergent in the bathtub to remove organic dirt in the bathtub,
A bathtub rinsing process in which tap water is discharged into the bathtub to wash away the cleaning liquid;
A bathtub sterilization step of sterilizing the inside of the bathtub by discharging sterilized water into the bathtub;
A control unit capable of executing a standby process for stopping washing water, tap water, and sterilizing water discharge for a predetermined time,
The controller performs the bathtub rinsing step after performing the bathtub cleaning step,
After the bathtub rinsing step, the standby step is performed to discharge most of the tap water discharged in the bathtub rinsing step to a drain outlet formed at the bottom of the bathtub,
After reducing the residual water so as to suppress dilution of the sterilizing water discharged later and to retain the sterilizing water discharged later in the bathtub by the standby step,
A bathtub cleaning apparatus that performs the bathtub sterilization step to retain sterilized water in the bathtub. An automatic drain valve capable of opening and closing the drain outlet;
2. The bathtub cleaning apparatus according to claim 1, wherein the control device controls the automatic drain valve to be closed after the standby step, before, during or immediately after the bathtub sterilization step. . The control device is capable of performing a washing place sterilization step of discharging sterilizing water to the washing place floor of the bathroom,
The bathtub cleaning apparatus according to claim 1 or 2, wherein the washing place sterilization step is executed while the standby step is being executed. The bathtub cleaning apparatus according to claim 3, wherein the bathtub sterilization step and the washing place sterilization step also serve as a sterilizing water generating means.

Images