JP2008240442A - Toilet bowl pollution preventive system and toilet bowl pollution preventive method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology capable of preventing pollution of a toilet bowl without having influence on the human body and a facility. <P>SOLUTION: This toilet bowl pollution preventive system 1 is composed of an active oxygen generator 10 generating active oxygen water, a control device 30 controlling cleaning of a urinal 20, a water pipe 40 supplying water under predetermined pressure to the active oxygen generator 10 and the urinal 20, and a drain pipe 50 draining the water from the water pipe 40 flowed in the urinal 20, and prevents pollution of the urinal 20 by supplying the active oxygen water generated by the active oxygen generator 10 to the urinal 20. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a toilet bowl contamination prevention system and a toilet bowl contamination prevention method for preventing toilet bowl contamination by supplying water containing active oxygen to the toilet bowl.

Conventionally, there has been proposed a technique for preventing the toilet from being contaminated by flowing ozone water containing ozone or ion-containing water having a bactericidal effect to the toilet.
As a technique for preventing the toilet from being contaminated with ozone water, for example, a toilet cleaning device has been proposed in which a device for generating ozone water is provided in a water storage tank and the ozone water generated by the device flows into the toilet ( Patent Document 1). This toilet cleaning device realizes deodorization, sterilization, antifouling, etc. with ozone contained in ozone water, and keeps the toilet sanitary by washing the toilet after the filth is carried out with ozone water .

In addition, as a technique using ion-containing water, for example, an electrode made of a metal such as silver or copper is placed in an electrolysis tank and a voltage is applied to generate ion-containing water in which metal ions are eluted in water. A toilet cleaning device that allows ion-containing water to flow into a toilet has been proposed (see Patent Document 2). Sterilization, deodorization, etc. are realized with water containing this metal ion.
Japanese Patent Application No. 9-232215 Japanese Patent Application No. 9-287752

  However, with the above-described technology, there is a risk of affecting the human body and equipment other than prevention of toilet contamination. For example, ozone is known to have an adverse effect on the human body, and even if the ozone contained in ozone water is low in concentration, toilets are often installed in narrow rooms, so if the excess ozone that has evaporated is filled , Safety to human body may be impaired. In addition, metal ions may promote corrosion of piping and the like.

As described above, the conventional toilet bowl cleaning device has a problem of adversely affecting the human body and facilities as well as preventing contamination of the toilet bowl.
The present invention has been made in view of such problems, and it is an object of the present invention to provide a toilet bowl contamination prevention system and a toilet bowl pollution prevention method that can prevent toilet bowl contamination without affecting human bodies and facilities. And

The invention according to claim 1, which has been made to solve the above-described problem, is a toilet bowl contamination prevention system including an active oxygen water generation unit and an active oxygen water supply unit. The active oxygen water generating means donates electrons to oxygen dissolved in water to generate a superoxide anion radical (.O ₂ ⁻ ) which is active oxygen. A part of this superoxide anion radical (hereinafter simply referred to as active oxygen) reacts as shown in the following formula to generate hydrogen peroxide.
2 ・ O ₂ ⁻ + 2H ⁺ → H ₂ O ₂ + O ₂
The active oxygen water supply means supplies the active oxygen water containing these active oxygen and hydrogen peroxide water to the toilet.

The active oxygen and hydrogen peroxide solution supplied in this manner have a function of oxidizing and decomposing organic compounds. Therefore, the toilet bowl contamination prevention system described above can remove organic compounds that adhere to the toilet bowl inner surface and the drainage pipe and cause odor generation and bacterial growth. Furthermore, since the active oxygen itself has a short life, there is no possibility that it will evaporate like ozone and fill the toilet room in which the toilet is installed, thereby impairing safety to the human body. Further, since no corrosion promoting substance such as metal ions is used, there is no possibility of causing corrosion of drainage pipes and the like.

Thus, if it is a toilet bowl contamination prevention system mentioned above, it can prevent the toilet bowl being contaminated, without affecting a human body and an installation.
The specific configuration of the active oxygen water generating means is not particularly limited as long as it can donate electrons to dissolved oxygen. For example, the active oxygen water generating unit may be configured as a toilet contamination prevention system according to claim 2. It is done. It consists of a water tank that can store water supplied from the outside, a cathode electrode and an anode electrode that are placed in contact with the water in a state where water is stored in the water tank, and a voltage between these electrodes. And a cathode electrode covered with a polyaniline film. In this configuration, when a reduction voltage is applied to the cathode electrode, electrons are donated to oxygen dissolved in water, and active oxygen is generated.

With the toilet contamination prevention system configured as described above, electrons can be given to dissolved oxygen dissolved in the water via the polyaniline film.
Further, specific types of polyaniline include undoped polyaniline or a polyaniline derivative represented by Chemical Formula 1 or Chemical Formula 2 in claim 3, and doped polyaniline represented by Chemical Formula 3 or Chemical Formula 4 in Claim 3. Alternatively, a polyaniline derivative can be used.

In the above chemical formula, A represents an anion. n is an integer in the range of 2 to 5000, and x and y are numbers that satisfy x + y = 1 and 0 ≦ y ≦ 0.5 simultaneously.
Further, as the dopant, a compound containing at least one of a sulfonic acid group, a phosphonic acid group, a nitric acid group, a carboxyl group, a sulfinic acid group, and a hydroxyl group can be considered.

  By the way, the timing which supplies active oxygen water to a toilet bowl is not specifically limited. For example, it is conceivable to supply active oxygen water as water for flushing excrement and washing the toilet bowl immediately after the toilet bowl is used.

  In addition, as a toilet contamination prevention system for supplying active oxygen water at other timings, as in claim 4, washing water for cleaning the toilet by supplying a predetermined amount of water not containing active oxygen to the toilet A configuration may be considered in which supply means is provided and active oxygen water is supplied to the toilet bowl at the timing when the toilet bowl is washed with water that does not contain active oxygen.

  In the toilet contamination prevention system configured in this way, since active oxygen water is finally supplied to the toilet, the active oxygen water does not flow into water that does not contain active oxygen, and the toilet and traps have a long time. Since it can be retained, the generated active oxygen can be efficiently used for preventing contamination. In addition, since the toilet bowl is first washed with water that does not contain active oxygen, the amount of active oxygen water required is reduced compared to the case where the toilet bowl is washed with active oxygen water. The cleaning effect can be improved.

  Note that the amount of active oxygen water generated may be about twice the amount of water accumulated in the trap. With that amount, most of the water accumulated in the trap can be replaced with water containing active oxygen.

  In addition, as a configuration for supplying water containing active oxygen to the toilet bowl at a timing different from the above-described configuration, a certain time has elapsed since the active oxygen water was last supplied to the toilet bowl as described in claim 5 A configuration may be considered in which supply is performed again at the timing.

  With the toilet contamination prevention system configured in this way, active oxygen water that has an effect of preventing toilet contamination can be periodically flowed to the toilet, so that the frequency of using the toilet is low. In addition, a stable contamination prevention effect can be obtained.

  The toilet contamination prevention method according to claim 6 is characterized in that active oxygen water is generated by donating electrons to oxygen dissolved in water, and the generated active oxygen water is supplied to the toilet. To do.

  When the toilet is prevented from being contaminated by such a method, the same operation and effect as the toilet contamination prevention system according to any one of claims 1 to 5 can be obtained.

[Example 1]
(1-1) Overall Configuration As shown in FIG. 1, the toilet-contamination prevention system 1 of this embodiment includes an active oxygen generator 10 that generates active oxygen-containing water (hereinafter referred to as active oxygen water), and a small The controller 30 that controls the cleaning of the toilet 20, the water pipe 40 that supplies water to the active oxygen generator 10 and the urinal 20 at a predetermined pressure, and water from the water pipe 40 that flows into the urinal 20 are discharged. Drainage pipe 50 to be made.

  Among these, as shown in FIG. 2, the active oxygen generator 10 introduces water supplied from the water pipe 40 through the inlet 11, and a predetermined amount (the amount of water staying in the trap 52 described later in this embodiment). The water tank 12 that stores water, the cathode 13 and the anode 14 that are disposed in contact with the water stored in the water tank 12, and the outlet 15 that supplies the stored water to the urinal 20.

Among these, the surface of the cathode 13 is covered with a polyaniline film 16.
Moreover, the cathode 13 and the anode 14 are connected to the control device 30, and a voltage is applied from a power supply built in the control device 30. Active oxygen is generated by applying a reduction voltage to the cathode 13 from a power source, which will be described in detail later.

  In this embodiment, the cathode 13 and the anode 14 are made of activated carbon fibers. The polyaniline film 16 is formed by dissolving polyaniline in a solvent such as N-methylpyrrolidone and applying it, followed by baking.

  Specific types of polyaniline include undoped polyaniline or polyaniline derivative represented by the following chemical formula 1 or chemical formula 2, and doped polyaniline or polyaniline derivative represented by the following chemical formula 3 or chemical formula 4. Can be used.

In the above chemical formula, A represents an anion. n is an integer in the range of 2 to 5000, and x and y are numbers that satisfy x + y = 1 and 0 ≦ y ≦ 0.5 simultaneously.
Further, as the dopant, a compound containing at least one of a sulfonic acid group, a phosphonic acid group, a nitric acid group, a carboxyl group, a sulfinic acid group, and a hydroxyl group can be considered.

  Further, the control device 30 does not pass through the upstream solenoid valve 32 disposed upstream of the inlet 11, the downstream solenoid valve 34 disposed downstream of the outlet 15, and the active oxygen generator 10 in the water pipe 40. Are connected to a water solenoid valve 36 disposed on a path reaching 20 and a sensor 38 for detecting that the user stands in front of the urinal 20 (hereinafter referred to as “use state”). The upstream solenoid valve 32, the downstream solenoid valve 34, and the water solenoid valve 36 are closed when the sensor 38 does not detect the use state, and when the use state is detected, the control device 30 controls the opening / closing operation thereof. The The upstream solenoid valve 32 is opened when water is stored in the water tank 12. The downstream solenoid valve 34 is opened when the water stored in the water tank 12 is supplied to the urinal 20. The water electromagnetic valve 36 is opened when supplying water for washing the urinal 20 to the urinal 20.

Further, the drainage pipe 50 is formed with a trap 52 for storing a certain amount of drainage discharged from the urinal 20 and prevents bad odors from flowing back to the urinal 20 side.
(1-2) Urinal Cleaning Operation When the control device 30 detects the usage state, the control device 30 opens the water electromagnetic valve 36 and covers the surface of the urinal 20 with water so that it is difficult to get dirty. To. After a predetermined time has elapsed, the water electromagnetic valve 36 is closed.

  Next, when the sensor 38 no longer detects the use state, the water electromagnetic valve 36 is opened, and the surface of the urinal 20 is washed. After elapse of a predetermined time, the water electromagnetic valve 36 is closed and the downstream electromagnetic valve 34 is opened. At this time, the active oxygen water generated in the active oxygen generator 10 is supplied to the surface of the urinal 20 and the surface and the trap 52 of the drain pipe 50 are washed with active oxygen. After a predetermined time has elapsed, the downstream solenoid valve 34 is closed.

Next, the upstream solenoid valve 32 is opened, and water is accumulated in the active oxygen generator 10. After a predetermined time has elapsed, the upstream solenoid valve 32 is closed.
(1-3) Active Oxygen Water Generation Operation and Effects When the control device 30 applies a reduction voltage to the cathode 13 with water in the active oxygen generator 10, electrons are supplied to the polyaniline, and the polyaniline is dissolved in water. Electrons are given to oxygen to continuously generate superoxide anion radical (.O ₂ ⁻ ) (hereinafter simply referred to as active oxygen) which is active oxygen. A part of the active oxygen reacts as shown in the following formula to generate hydrogen peroxide.

2 ・ O ₂ ⁻ + 2H ⁺ → H ₂ O ₂ + O ₂
Since the active oxygen and hydrogen peroxide water generated in this manner has a function of oxidizing and decomposing organic compounds, it adheres to the inner surface of the urinal 20 and the drain pipe 50 and generates odors and bacteria growth. It is possible to remove organic compounds that are a factor. Furthermore, since the active oxygen itself has a short life, it is unlikely that it will evaporate like ozone and fill the toilet room in which the urinal 20 is installed, impairing safety to the human body. Further, since a corrosion promoting substance such as metal ions is not used, there is no possibility of causing corrosion of the drain pipe 50 and the like.

Therefore, if it is the toilet bowl contamination prevention system 1 mentioned above, contamination of the urinal 20 can be prevented, without affecting a human body and an installation.
Further, in the toilet bowl contamination prevention system 1 of the present embodiment, electrons can be given to the dissolved oxygen dissolved in the water via the polyaniline film 16.

Moreover, in the toilet bowl contamination prevention system 1 of the present embodiment, since the active oxygen water is finally supplied to the urinal 20, the active oxygen water does not flow into the water that does not contain active oxygen, and the inside of the urinal 20 In addition, since the active oxygen water can be retained in the trap 52 for a long time, the generated active oxygen can be efficiently used for preventing contamination. In addition, after using the urinal 20, the urinal 20 is first washed with water that does not contain active oxygen, so that the required amount of active oxygen water is reduced as compared with the case where the urinal is washed with active oxygen water. Active oxygen can be easily increased in concentration, and the cleaning effect can be improved. In addition, since the production amount of active oxygen water is twice the amount of water accumulated in the trap 52, by supplying the amount of active oxygen water to the urinal 20, most of the water accumulated in the trap 52 is It can be replaced with active oxygen water.
[Example 2]
(2-1) Overall Configuration As shown in FIG. 3, the toilet contamination prevention system 2 according to the present embodiment does not include the active oxygen generator 10 that generates active oxygen water and the active oxygen that cleans the western toilet 100. A water storage tank 110 for storing cleaning water, a control device 120 for controlling cleaning of the toilet 100, a drain pipe 130 for discharging cleaning water from the water storage tank 110 supplied to the toilet 100, the active oxygen generator 10 and water storage And a water pipe 140 for supplying water to the tank 110 at a predetermined pressure.

Further, the toilet seat 100 is provided with a toilet seat 102 that can be displaced up and down around the end (A in FIG. 3) of the toilet 100 as a rotation axis.
The above-described active oxygen generator 10 has the same configuration as that of the active oxygen generator 10 according to the first embodiment. The water supplied from the water pipe 140 is introduced from the inlet 11 and stored, and the stored water is discharged from the outlet. 15 is supplied to the toilet 100. The cathode 13 and the anode 14 are connected to the control device 120.

  The control device 120 performs a cleaning operation of the toilet bowl contamination prevention system 2 based on a program stored in an internal storage device. The control device 120 is disposed on a path that does not go through the active oxygen generator 10 in the water piping 140, the upstream solenoid valve 32 disposed upstream of the inlet 11, the downstream solenoid valve 34 disposed downstream of the outlet 15. Of the water supply electromagnetic valve 122, the drainage electromagnetic valve 124 disposed in the piping from the water storage tank 110 to the toilet 100, and a sensor 126 for detecting that the user has approached the toilet 100 (hereinafter referred to as "approaching state"). And a bypass solenoid valve 136 (described later) provided in the drainage pipe 130 and a cleaning switch (not shown) that is pressed when the user cleans the toilet 100. Further, the position of the toilet seat 102 is detected, and it is detected whether the toilet seat 102 is located above or below.

  The upstream solenoid valve 32, the downstream solenoid valve 34, the water supply solenoid valve 122, and the drain solenoid valve 124 are closed when the sensor 126 does not detect the approaching state, and when the approaching state is detected, the control device 120 opens and closes the solenoid valve. Operation is controlled. The upstream electromagnetic valve 32 is opened when water is stored in the water tank 12, and the downstream electromagnetic valve 34 is opened when water stored in the water tank 12 is supplied to the toilet 100. Further, the water supply electromagnetic valve 122 is opened when water is stored in the water storage tank 110, and the drainage electromagnetic valve 124 is opened when cleaning water containing no active oxygen for washing the toilet 100 is supplied to the toilet 100.

In addition, the drain pipe 130 is formed with a trap 132 for collecting a certain amount of drainage discharged from the toilet 100, and prevents bad odors from flowing back to the toilet 100 side. The trap 132 is provided with a bypass 134 and a bypass electromagnetic valve 136. When the bypass electromagnetic valve 136 is opened, the water accumulated in the trap 132 is discharged through the bypass 134.
(2-2) Processing of Control Device 120 for Toilet Cleaning Hereinafter, a processing procedure for toilet cleaning by the control device 120 will be described with reference to FIG.

  This process is started when the sensor 126 detects an approaching state. When this process is started, first, it waits for a predetermined time (for example, 5 seconds) (S1). After waiting for a predetermined time, it is determined whether or not the toilet seat is raised (S2). If the toilet seat is raised (S2: YES), the bypass solenoid valve 136 is opened and the water stored in the trap 132 is discharged (S3) in order to prevent the toilet 100 from being polluted by a male urine bounce. On the other hand, if the toilet seat is not raised (S2: NO), the wash water stored in the water storage tank 110 is supplied to such an extent that the surface of the toilet 100 is covered with water (S4).

  Subsequently, it is determined whether or not the cleaning switch has been pressed (S5). If the washing switch is pushed (S5: YES), the flushing water stored in the water storage tank 110 is supplied and the toilet 100 is washed (S7). On the other hand, if the cleaning switch has not been pressed (S5: NO), it is determined whether or not an approaching state is detected (S6). If the approaching state is detected (S6: YES), the process returns to S5. On the other hand, if the approaching state has not been detected (S5: NO), the flush water stored in the water storage tank 110 is supplied to wash the toilet 100 (S7).

Next, the downstream solenoid valve 34 is opened, and a predetermined amount of active oxygen water is supplied and stored in the trap 132 (S8).
Next, active oxygen water is generated by the active oxygen generator 10 (S9). Specifically, the upstream solenoid valve 32 is opened for a predetermined time to store water in the water tank 12 and a reduction voltage is applied to the cathode 13.

Thereafter, this process ends.
(2-3) Effect The toilet contamination prevention system 2 configured as described above can efficiently prevent the toilet 100 from being contaminated without affecting the human body and equipment, like the toilet toilet contamination prevention system 1 of the first embodiment. can do.

Further, when the toilet seat 102 is lifted, the toilet bowl contamination prevention system 2 discharges the water stored in the trap 132, so that when the man performs a urine, the man splashes into the water stored in the trap 132. Can be suppressed.
[Modification]
As mentioned above, although the Example of this invention was described, this invention is not limited to each said Example at all, and as long as it belongs to the technical scope of this invention, it cannot be overemphasized that various forms can be taken. .

  For example, in Example 1 and Example 2 described above, the configuration in which the active oxygen water is supplied after washing the urinal 20 or the toilet 100 with water that does not contain active oxygen is illustrated. It is not limited to what was mentioned above.

  For example, the active oxygen water may be supplied again at a timing after a predetermined time has elapsed since the active oxygen water was last supplied to the urinal 20 or the toilet 100. With the toilet bowl contamination prevention systems 1 and 2 configured as described above, active oxygen water having an effect of preventing pollution can be periodically supplied to each toilet, so that the frequency of using each toilet is low. Even if it is a belt, a stable effect of preventing contamination can be obtained.

  Moreover, in the said Example 2, the structure which drains to the toilet bowl 100 by performing water storage by opening the water supply electromagnetic valve 122 with respect to the water storage tank 110 and opening the drainage electromagnetic valve 124 was illustrated. However, the specific configuration is not particularly limited as long as the water storage tank 110 can store and drain water.

  For example, a floating rubber that covers the drain port of the water storage tank 110 and functions as a drain valve, and a floating ball that functions as a water faucet that adjusts the amount of water flowing into the water storage tank 110 are provided. The structure may be such that drainage is started by floating from the mouth, and the floating rubber and the floating ball are displaced according to the fluctuation of the water level in the water storage tank 110 to stop the drainage and store the water.

The side view which shows the toilet bowl contamination prevention system of Example 1 Side view showing active oxygen generator The side view which shows the toilet bowl contamination prevention system of Example 2 The flowchart which shows the procedure of the process of the control apparatus for toilet bowl washing | cleaning

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 ... Toilet contamination prevention system, 10 ... Active oxygen generator, 11 ... Inlet, 12 ... Water tank, 13 ... Cathode, 14 ... Anode, 15 ... Outlet, 16 ... Polyaniline membrane, 20 ... Urinal, 30 ... Control device 32 ... Upstream solenoid valve, 34 ... Downstream solenoid valve, 36 ... Water solenoid valve, 38 ... Sensor, 40 ... Water piping, 50 ... Drain piping, 52 ... Trap, 100 ... Toilet, 102 ... Toilet seat, 110 ... Water storage tank, DESCRIPTION OF SYMBOLS 120 ... Control apparatus, 122 ... Water supply solenoid valve, 124 ... Drainage solenoid valve, 126 ... Sensor, 130 ... Drain piping, 132 ... Trap, 134 ... Bypass, 136 ... Bypass solenoid valve, 140 ... Water piping

Claims (6)

Active oxygen water generating means for generating active oxygen water containing active oxygen by donating electrons to oxygen dissolved in water;
An active oxygen water supply means for supplying the active oxygen water generated by the active oxygen water generation means to the toilet bowl. The active oxygen water generating means includes
A water tank capable of storing water supplied from the outside;
A cathode electrode and an anode electrode disposed at a position in contact with the water in a state where water is stored in the water tank;
A power source for applying a voltage between the cathode electrode and the anode electrode,
The toilet cathode contamination prevention system according to claim 1, wherein the cathode electrode is coated with a polyaniline film. The toilet bowl contamination prevention system according to claim 2, wherein the polyaniline is at least one polyaniline selected from the group consisting of the polyanilines represented by the following chemical formulas 1 to 4.

A cleaning water supply means for cleaning the toilet bowl by supplying a predetermined amount of water not containing active oxygen to the toilet bowl,
The said active oxygen water supply means supplies the said active oxygen water to a toilet bowl at the timing which the toilet bowl washing | cleaning by the said wash water supply means is complete | finished. The toilet bowl contamination in any one of Claims 1-3 characterized by the above-mentioned. Prevention system. 5. The active oxygen water supply means supplies the active oxygen water to the toilet at a timing after a predetermined time has elapsed since the last supply of the active oxygen water to the toilet. Toilet bowl contamination prevention system described in Crab. A method of preventing toilet contamination, comprising generating active oxygen water containing active oxygen by donating electrons to oxygen dissolved in water, and supplying the generated active oxygen water to the toilet.

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