JP2004270302A - Drainage trap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage trap which dispenses with a power source, need not be exchanged, stably elutes silver ions, and prevents the generation of slime. <P>SOLUTION: The drainage trap has a water reservoir at an upper portion thereof, and the reservoir has at least one water outlet and a silver electrode at least on part of the surface thereof. The silver electrode has an electrically connected counter electrode which is formed of a metal having an ionization tendency smaller than that of silver. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a drain trap capable of preventing slimming without maintenance by using a sterilizing metal.
[0002]
[Prior art]
Usually, the drain trap is constituted by a water sealing portion in which water is always stored and a wall surface with which water contacts only when the water flows. First, the dirt on the wall surface that comes into contact with water only when the water flows will be described. Conventionally, the drain trap wall comes in contact with hot water containing a large amount of organic matter, so that bacteria easily propagate. In addition, since it is not always in contact with water and is dried appropriately, mold propagation is often observed. Microbial stains such as bacteria and fungi cause slimming and give a bad impression that they look dirty. Further, in a drain trap of a kitchen, a drainage basket is installed in that part, and the drainage basket also has a problem that bacteria can easily propagate.
Water is always present in the sealed section where water accumulates in order to prevent cockroaches and rats from entering the sewer system, and there are many organic substances such as humans and soap. It is an environment where bacteria can easily propagate because it flows naturally. For this reason, there are many problems in the water sealing section, such as slimming and odor caused by bacteria. In this way, despite the fact that the drain traps on both the water sealing part and the wall surface have a lot of bacteria and fungus-derived dirt, they are hard to clean by putting their hands in them, and the frequency of cleaning is reduced. And a vicious circle is likely to occur, such as a greater resistance to cleaning.
Conventionally, a fibrous substance containing an antibacterial and antifungal agent consisting of a metal salt of an organic compound is installed on the top of a drain trap, and when water passes through, metal ions dissolve into the water, and the effect of the metal ions causes the drain trap. There is a method for preventing the slimming of the film (see, for example, Patent Document 1). In addition, there is a method in which a storage section for storing a medicine is provided above the drain trap to prevent slimming by a sterilizing effect of the medicine (for example, see Patent Document 2).
It is known that silver ions or hypochlorite ions are generated by electrolysis to have a bactericidal action, but it is hardly appropriate to use a power supply in a drain trap. As a method that does not use a power supply, a technology has been disclosed in which a self-cell is formed by combining a silver electrode and a metal having a lower ionization tendency than silver to release silver ions and have an antibacterial effect (for example, see Patent Document 3). ).
[0003]
[Patent Document 1]
JP-A-2000-45352
[Patent Document 2]
JP 2001-65021 A
[Patent Document 3]
JP-A-10-263054
[Problems to be solved by the invention]
[0004]
However, in the method described in Patent Literature 1, the fiber containing the metal salt elutes a large amount of metal ions in the initial stage, and the contained silver ions disappear, so that the amount of release gradually decreases. Has a slimming prevention effect, but if it is used without replacing it with a new one, there is a problem that the slimming prevention effect is lost due to lack of silver ions, and it is necessary to replace it. In addition to being troublesome, there is a problem that running costs are increased. However, no matter how much the metal salt content was increased, the problem could not be solved only by increasing the initial elution amount. In addition, in bathrooms and kitchens, the upper part of the drain trap is flushed with water, and in the kitchen, the user touches the dishes and the dishes and foods hit them. The strength was weak, and there was a problem in durability. Further, in the method described in Patent Document 2, since a medicine is used, it is necessary to replace the medicine storage part itself or to put the medicine into the storage part at any time. There was a problem. In addition, since the medicine is used, there is a problem in that when a child or the like accidentally puts it into the mouth, it is dangerous or an environmental burden is imposed. It is also possible to mix silver into the material of the drain trap itself. For example, if silver is dispersed throughout the resin, etc., even if silver is mixed at a level of several percent, silver will be more concentrated in the center than the material surface There is a problem of hardening, and the amount of silver that can actually participate in sterilization decreases. Therefore, almost no silver ions were eluted, and no bactericidal effect was exhibited. In addition, when the silver content is increased to increase the elution of silver ions, darkening occurs, so that the content is limited.
[0005]
On the other hand, in order to apply the technology of forming a self-battery and releasing silver ions described in Patent Document 3 to a drain trap, it is difficult to exert a bactericidal effect simply by replacing it with an organic metal salt-containing fiber or a chemical. . For example, when water is collected in a tub and used little by little in a washing place, the flow rate is small, and when the water stored in the bathtub is drained at a stretch, the flow rate is very large and the flow velocity is fast. Therefore, even if silver and its counter electrode are both provided at the top of the drain trap, the flow of water differs depending on the time, so that both silver and its counter electrode come into contact with water at the same time and current flows. However, it was not always possible to obtain a stable bactericidal property. In addition, since the flow rate is not constant both when draining the bathtub and when using the washing place, when the flow rate is high, the contact time between water and the silver electrode is short, there is no time to sufficiently elute silver ions, and the concentration cannot be increased. .
[0006]
Therefore, in the present invention, by providing a water reservoir, silver and its counter electrode can surely come into contact with water in the same system, further increasing the silver ion concentration, and forming a self-battery without the need for a power supply. Provided is a drain trap capable of stably supplying sterilizing silver ions, enabling sterilization of the entire drain trap without maintenance, and suppressing the growth of bacteria and fungi.
[0007]
[Means for Solving the Problems and Functions / Effects]
The present invention made in order to solve the above-mentioned problem is a drain trap, comprising a water pool at an upper part of the drain trap, the water pool having at least one water outlet, and the water pool having at least a surface. A silver electrode is partially provided, and the silver electrode has a counter electrode electrically connected thereto, and the counter electrode is made of a metal having a lower ionization tendency than silver.
[0008]
If a silver electrode is provided in the drainage path from the bathtub or washing place, the flow of water will vary, and depending on the flow of water, the silver electrode and the counter electrode may not be able to exchange electrons through water and form a self-battery. Can not. The presence of the water reservoir allows the silver electrode and the counter electrode to constitute a self-battery. To ensure that the battery itself can be constructed, it is preferable that the water outlet is made smaller than the inlet so that the time during which water is accumulated is longer.
Silver ions gradually elute into the water accumulated in the water pool, are gradually discharged, flow on the drain trap wall surface, and reach the water sealing section. At this time, both the slimming of the wall surface of the drain trap and the slimming of the water sealing portion can be prevented by the sterilizing effect of silver ions.
In this method, a self-battery is used, so no power supply is required, and silver has a bactericidal effect at very low concentrations. And no maintenance is required. Note that gold and platinum are examples of metals having a lower ionization tendency than silver. In addition, it is preferable that the water pool is located as high as possible. However, the water pool may be located above the draft surface of the water sealing portion of the drain trap.
[0009]
Further, in one embodiment of the present invention, a drain trap having a water sealing portion for storing water, wherein a water pool is provided at an upper portion of the drain trap, wherein the water pool has at least one water outlet, The water pool has a silver electrode on at least a part of its surface, the silver electrode has an electrically connected counter electrode, and the counter electrode is made of a metal having a lower ionization tendency than silver.
[0010]
When the dirt is clogged in the water outlet, even if silver ions are eluted into the water accumulated in the water pool, the water accumulated in the water pool is not drained gradually. Silver ions are eluted. Therefore, by providing a counter electrode in the water sealing portion, the water in the water sealing portion and the water in the water pool portion are connected in the same system only when the water in the water pool portion is surely drained from the water outlet. And silver ions can be prevented from being unnecessarily eluted.
[0011]
In one embodiment of the present invention, in a drain trap having a water sealing portion in which water is stored, the water sealing portion has a silver electrode on at least a part of its surface, and the silver electrode is electrically connected. It has a counter electrode, and the silver electrode and the counter electrode are both installed at a position lower than the water surface in the water sealing portion, and further include a means for washing the silver.
[0012]
By making the whole or part of the water sealing portion a silver electrode, the silver ion concentration in the vicinity of the water sealing portion becomes high, and slimming of the trap wall surface can be more reliably prevented. Further, the silver electrode can be washed, and the silver ion can be stably eluted without the silver electrode being stained and the elution of the silver ion being reduced.
[0013]
In a preferred aspect of the present invention, the silver electrode and the counter electrode are arranged at the lowermost part of the water pool.
[0014]
In this embodiment, a self-battery can be formed and silver ions can be eluted from the pool to immediately before all the water is drained.
[0015]
In a preferred aspect of the present invention, a filter is provided at the water inlet.
[0016]
Washing dirt such as foods in the kitchen and hair in the bathroom can be prevented from entering the water pool, and the water pool can be prevented from collecting dirt and clogging the water outlet.
[0017]
In a preferred aspect of the present invention, the water outlet is provided along a drain trap wall surface.
[0018]
In bathrooms, slimming and mold are only a problem on the wall surface.By providing an outlet on the wall surface, it is possible to prevent water containing silver ions from falling unnecessarily without passing through the wall surface. Water containing silver ions can be reliably flowed.
[0019]
In a preferred aspect of the present invention, the water outlet is inclined so as to be the lowest.
[0020]
ADVANTAGE OF THE INVENTION According to this invention, all the silver ion water can be effectively utilized by draining the water containing silver ions accumulated in the water pool part.
[0021]
In a preferred aspect of the present invention, the silver electrode is coated in a film shape on a member constituting a drain trap.
[0022]
By coating the silver electrode on a resin or rubber, for example, the silver can be spread over the entire puddle while being electrically connected to each other with a small amount of silver. Can be flushed throughout.
[0023]
In a preferred aspect of the present invention, the counter electrode is coated on the silver electrode in a film form.
[0024]
If platinum or gold is used for the counter electrode, there is a problem that the cost is high. Then, by vapor deposition on a silver electrode, the thin film is adhered, and the amount of different metals such as platinum and gold can be minimized.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
In FIG. 1, 1 is a bathtub, 2 is a faucet, 3 is a washing place, and 4 is a drain trap. FIG. 2 is a cross-sectional view of FIG. 1, wherein 5 is a drain trap lid, 6 is a water sealing portion where water is always stored, and 7 is a drain hose. FIG. 3 is an enlarged cross-sectional view of the drain trap 4, 8 is a water pool portion, 9 is a drain trap wall surface, and 14 is a counter electrode. Normally, pooled water in the bathtub 1 and water flowing when the body and hair are washed in the washing place 3 pass through the drain trap 4 and are drained outside. In addition, the drain trap is usually trapped so that water always accumulates in order to prevent cockroaches and rats from entering the sewage and to prevent odor. Since the water sealing portion 6 is configured so that water always accumulates, cockroaches and mice entering from the sewer and entry and malodor can be prevented by the accumulated water in the water sealing portion. However, the area where water is always stored in the sealed section is rich in organic matter, water is always present, hot water flows frequently, and it is an environment where bacteria can easily propagate. . Therefore, there is a problem that slimming due to bacteria is likely to occur in the sealed portion. Similarly, bacteria easily proliferate on the wall surface 9 of the drain trap and may be appropriately dried, so that the growth of mold that is difficult to grow in water is promoted, and both bacteria and fungi become problems.
[0026]
A first embodiment of the present invention will be described in detail with reference to the accompanying drawings. In FIG. 3, a water pool 8 is provided above the drain trap, and most of the water overflows through the water pool 8 from the washing place 2 or the bathtub 1 and directly flows into the water sealing section 6 to be drained. In some cases, a part of the water is stored in the water pool portion 8. Although not shown, the pool 8 has a silver electrode. The entire puddle portion may be made of silver, or a part of the puddle portion may be made of silver, and the other may be made of another material such as resin or rubber. Further, in order to reduce the amount of silver used, another material such as resin or rubber is coated with silver in whole or in part, or silver is arranged in a mesh on the entire surface of resin or rubber. preferable. Further, a counter electrode 14 is provided on the silver electrode. The counter electrode has a lower ionization tendency than silver and needs to be a metal which is hardly eluted. Specifically, platinum or gold is used. The silver electrode is electrically connected to the counter electrode 14. The term “electrically connected” means that the transfer of electrons occurs, and indicates that the silver electrode and the counter electrode are directly connected or connected by a conductive wire or the like. In the case of joining with a conductive wire or the like, it is desirable to coat the wire or the like with a resin or the like so that elution of silver ions is not hindered by elution of the wire.
By doing so, a self-battery is formed between the silver electrode and the counter electrode, a current flows, and silver ions elute into the water accumulated in the water pool. Since it is important for the counter electrode to cause electron transfer, a small amount is sufficient. It may be in the form of a plate, or it is preferably coated with silver in order to reduce the amount and reduce the cost. In coating, it is preferable to coat a part of the silver electrode because elution of silver ions is restricted if the whole silver electrode is coated.
[0027]
Next, an embodiment of the configuration of the water pool 8 and the configuration of the water outlet 13 will be described in detail with reference to the accompanying drawings. FIG. 4 is a view of the water pool 8 as viewed from above. The water pool 8 has a water outlet 13 at the lower portion or below the side portion, and the water outlet 13 has a larger total area of the water inlet than the total area of the water outlet so that drained water is restricted. It is configured to be. Desirably, the hole diameter is reduced to about several mm. With this configuration, the water that flows in at a high flow rate is temporarily stored in the water pool, so that the water stored in the water pool can be dropped over time, for example, one by one. The flow rate at the time of dropping can be controlled by the hole diameter, and the smaller the hole diameter, the smaller the discharge amount. If the same amount and the same surface area of silver are used, the lower the flow rate, the higher the concentration of silver eluted into the water pool.
Normally, the water flowing from a bathtub or a washing place has a high flow velocity, and simply providing a silver electrode having the above-described structure at the entrance of the drain trap does not necessarily make the silver electrode and the counter electrode necessarily form a self-battery. There is a problem that silver ions of sufficient concentration are not eluted in a short time, but by providing a water reservoir as described above, silver and the counter electrode come into contact with water together so as to form a self-battery, and silver ions are collected in the water. It becomes possible to elute a sufficient amount of water accumulated in the part. The pool water from which silver elutes is gradually drained from the water outlet as described above, falls down along the drain trap wall surface 9, reliably sterilizes and kills the wall surface, and after flowing down to the water sealing section, is sealed. Silver ions are adsorbed on the wall surface of the part 6, and the wall surface of the water sealing part 6 can be sterilized.
[0028]
An example of the drainage time of the pool water will be described. First, it is assumed that 200 cc of water can be stored in the water pool, and the water is dropped one by one every five seconds. One drop of water is about 0.1 cc. If ten water outlets are disposed in the entire water pool, about 1 cc will be dropped every 10 seconds. It would take 1000 seconds or about 16 minutes to drain all the water. The silver concentration in water can be controlled by the amount of silver and the size of the surface area, but if the flow rate from a normal bathtub or washing place is left as it is, an enormous amount of silver is required to produce a bactericidal effect. This is almost impossible in a narrow space called a drain trap. In the present invention, as described above, the flow rate can be extremely reduced, so that a small amount of silver can be increased to a concentration having a bactericidal effect. Further, since water is hardly agitated in the water pool portion 8, the silver ion concentration is high in the vicinity of silver. Therefore, it is most desirable to install a silver electrode near the water outlet 13, and high-concentration silver ion water generated near the silver electrode is drained without being mixed with low-concentration water on the water inlet side, and a small amount of silver is discharged. It is possible to efficiently sterilize the trap wall surface and the water sealing portion, and it is possible to prevent the occurrence of slime and mold.
[0029]
A desirable installation position of the water outlet 13 will be described. The water outlet 13 is desirably provided along the wall surface so that the water containing silver ions flows to the wall surface of the drain trap without fail. To be provided along the wall surface means that the silver ion water drained from the water outlet falls along the wall surface. In the present invention, the purpose is to sterilize both the wall surface and the sealed portion, but if high concentration silver ion water is dropped without passing through the wall surface, the sealed portion can be sterilized. May not be sterilized efficiently. Therefore, by providing the water outlet along the wall surface, both the water sealing portion and the wall surface can be efficiently sterilized.
It is also preferable that both the silver electrode and the counter electrode 14 are provided at the water pool 8, particularly at the bottom thereof. For example, when the amount of water used is small, there is a possibility that the water is not completely stored in the water pool portion 8. In such a case, the silver electrode and the counter electrode can form a self-battery without fail, and the water stored in the water pool portion 8 can be reliably formed. Silver ions can be eluted.
[0030]
As described above, the water trap portion is provided with the water pool portion having the silver electrode by the self-battery on the upper portion of the drain trap, and the water sealing portion is a portion where the water of the drain trap is always stored by having the silver electrode in the member itself. Just by passing the water through the water sealing portion and the water, it is possible to prevent contamination of the drain trap wall surface which repeats water contact and drying.
[0031]
In addition, by providing a silver electrode on the member of the water sealing section 6, the water sealing section 6 where the most slime is generated can be surely sterilized. At this time, the counter electrode also needs to be provided in the water sealing section. If the silver electrode having the above-described configuration is provided on the surface of the water sealing portion 6 itself or on the entire water sealing portion 6 which is easy to be slimmed, the water is always stored in the water sealing portion 6, so that silver ions are always eluted. are doing. In addition, since the portion where the slimming becomes a problem itself is a silver electrode, the vicinity of the wall surface of the water sealing portion 6 has a particularly high silver concentration. When the trap water contains a large amount of dirt, the organic matter and silver are likely to react with each other, and thus having the silver electrode in the water sealing portion itself works particularly effectively to prevent slimming. Further, the eluted silver ions are effective in sterilizing and deodorizing the water itself in the drain trap, and can also prevent malodor generated from the water. In addition, after silver is eluted, it has the effect of not only disinfecting and deodorizing water but also preventing slime by adhering to the wall surface. By doing so, it is possible to prevent slimming of the entire water immersion part of the water sealing part. However, as described above, since the silver concentration is high in the vicinity of the silver electrode, it is desirable that the silver electrode is disposed on the entire surface of the drain trap. In addition, it is preferable that silver electrodes are disposed on the entire surface and silver is coated in a film form or arranged in a mesh form in order to reduce the amount of silver used.
[0032]
Next, a second embodiment of the present invention will be described in detail with reference to the accompanying drawings. In FIG. 5, a silver electrode is provided in the water pool portion 8, and a counter electrode 14 is provided in the water sealing portion 6. The silver electrode and the counter electrode 14 are electrically connected. Since water is always stored in the water sealing section 6, the counter electrode 14 is always in contact with water. Further, when bath water or water used in the washing place flows, water accumulates in the water reservoir 8. Up to this point, it is the same as the above-described embodiment. Here, in the present embodiment, a silver electrode is provided in the water pool portion 8 and the counter electrode is provided in the water stored in the water sealing portion. Both the counter electrodes are in contact with water, but the water is separated, and in this state, no self-cell is formed. Thereafter, when the water accumulated in the water pool portion 8 is gradually drained from the water outlet, the drainage flows along the wall surface 9 and reaches the water accumulated in the water sealing portion. The water flowing through the water does not separate the water in contact with each of the silver and the counter electrode, forming a self-cell. With such a configuration, silver ions are not eluted when the water outlet is clogged or the like, and it is possible to prevent unnecessary silver ions from being eluted.
[0033]
Next, a third embodiment of the present invention will be described in detail with reference to the accompanying drawings. 6, reference numeral 100 denotes a kitchen drain trap, 101 denotes a pool, 102 denotes a drainage basket, 103 denotes garbage, and 104 denotes a water sealing section. In the figure, the counter electrode 105 is provided in the water sealing portion, but may be provided in the water pool portion.
FIG. 7 is a top view of the kitchen drain trap, and 107 is a water outlet. The configuration of the water pool is the same as that of the above-described bathroom drain trap. As shown in FIG. 6, the drain trap of the kitchen is provided with the drainage basket 102 in which the garbage is collected, so that there is a problem that the wall portion of the drainage basket 102 is easily slimmed. Therefore, it is desirable that the water outlet 107 be provided along the wall surface of the drain trap and along the wall surface of the drainage car. As a result, water containing silver ions gradually flows down on both the wall surface of the drain trap and the wall surface of the drainage basket, thereby enabling sterilization.
[0034]
Next, a fourth embodiment of the present invention will be described with reference to the accompanying drawings. In FIG. 8, reference numeral 110 denotes a water pool, and 111 denotes a water outlet. In the present embodiment, the water outlet 111 is inclined such that the water outlet 111 is located at the lowermost portion of the water pool portion, so that all the water stored in the water pool portion is reliably discharged. As shown in the figure, it may be inclined in a wavy manner toward the water pool portion, but if the water outlet 111 is provided along the wall surface, it may be inclined such that the wall surface side is lower. good.
[0035]
Next, a fifth embodiment of the present invention will be described with reference to the accompanying drawings. In FIG. 9, reference numeral 120 denotes a water pool, and 121 denotes a filter provided at a water inlet. Normally, there is a possibility that the hair contained in the drainage enters the puddle portion in the bathroom, or large dirt such as garbage enters the kitchen in the kitchen. When hair enters, it gives a dirty impression and discomfort to the user, or when large garbage enters, organic matter elutes into the water pool, and the eluted silver ions react with the organic matter. is there. For this reason, by providing the filter 121 above the water inlet, it is possible to prevent large dirt from entering. It is desirable that the size of the filter 121 be fine. However, if the size is too small, it is difficult for water to enter and water may not accumulate. Therefore, it is preferable that the size of the eye is larger than the hole diameter of the water outlet. However, even if the diameter is the same level as the hole diameter of the water outlet, by sufficiently increasing the number of the eyes of the filter 121, it is possible to prevent the entry of large dirt and further to collect water in the water pool.
[0036]
Next, a sixth embodiment of the present invention will be described with reference to the accompanying drawings. In FIG. 10, reference numeral 14 denotes a counter electrode also serving as a silver electrode cleaning means, and a silver electrode is formed at a portion in contact with the counter electrode 14. In the present embodiment, the counter electrode is configured to repeat contact and non-contact with the silver electrode by draining normal water. The counter electrode and the silver electrode are connected by an electric wire. The electric wire flows when drainage flows in, and the counter electrode 14 fluctuates with the flow, so that the electric wire repeatedly contacts and non-contacts the silver electrode. As a result, when the counter electrode hits, the dirt attached to the silver electrode can be efficiently removed, and the elution level of silver ions can be prevented from lowering.
[0037]
Next, a seventh embodiment of the present invention will be described with reference to the accompanying drawings. In FIG. 11, reference numeral 130 denotes a rotor for cleaning the silver electrode. Although not shown, a silver electrode is provided in the water sealing portion. Since the rotor 130 is rotated by the water flow and overlaps the silver electrode in the water sealing portion in the horizontal direction, a water flow different from the water flow due to the normal drainage of water due to the rotation is generated near the silver electrode and adheres to the silver electrode. It becomes possible to wash the dirt. In addition, since the silver elution speed is significantly increased by stirring, even after the drainage is completed, the rotation of the rotor blades allows the inside of the water sealing portion 6 to be stirred, and the silver ion elution is also large. It is possible to show the effect. As a result, the sterilization effect of silver ions can be further enhanced by the two effects of removing the dirt from the silver electrode and stirring.
[0038]
Next, an eighth embodiment of the present invention will be described with reference to the accompanying drawings. In FIG. 12, reference numeral 140 denotes a nozzle for cleaning the silver electrode. Although not shown, a silver electrode is provided in the water sealing portion. The water drained from the bathroom flows through the drainage hose 7 and into the water sealing section 6, but a nozzle for washing the silver electrode is provided at the end of the drainage hose 7, and the nozzle blows water toward the silver electrode. It has a configuration. When water is blown out from the nozzle, a water stream is formed in the vicinity of the silver electrode, so that dirt attached to the silver electrode can be washed away, and the elution of silver ions can be stably maintained.
[0039]
Next, a ninth embodiment of the present invention will be described with reference to the accompanying drawings. In FIG. 13, reference numeral 150 denotes an ejector for cleaning the silver electrode. Although not shown, a silver electrode is provided in the water sealing portion. The structure of the ejector is such that, when a part of the drainage hose is provided with a portion where the flow path is suddenly narrowed, and immediately after that, the flow path is expanded again and the air inlet 151 is provided, the negative pressure is reduced due to the sudden narrowing of the flow path. A portion is formed, and the air naturally enters the liquid due to the pressure difference. When the air is entrained, the waste water is bubbled water and is blown into the water sealing section 6 from the drain hose 7. Since the bubble water has a high water pressure at the same water volume and generates ultrasonic waves when the bubbles pop, the silver electrode can be effectively cleaned.
【The invention's effect】
According to the present invention, it has become possible to provide a drain trap that stably elutes silver ions without using a power source, does not require replacement, and can prevent slimming.
[Brief description of the drawings]
FIG. 1 is a plan view of a bathroom.
FIG. 2 is a sectional view of a bathroom.
FIG. 3 is a sectional view of the first embodiment.
FIG. 4 is a plan view of a bathroom drain trap.
FIG. 5 is a cross-sectional view of the second embodiment.
FIG. 6 is a sectional view of the third embodiment.
FIG. 7 is a plan view of a third embodiment.
FIG. 8 is a diagram showing a fourth embodiment.
FIG. 9 is a plan view of a fifth embodiment.
FIG. 10 is a sectional view of a sixth embodiment.
FIG. 11 is a sectional view of a seventh embodiment.
FIG. 12 is a sectional view of the eighth embodiment.
FIG. 13 is a sectional view of the ninth embodiment;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... bathtub, 2 ... faucet, 3 ... washing place, 4 ... drain trap, 5 ... drain trap lid, 6 ... water sealing part, 7 ... drain hose, 8 ... water pool part, 9 ... wall surface, 10 ... water inlet, 13 ... water outlet, 14 ... counter electrode, 100 ... kitchen drain trap, 101 ... water pool part, 102 ... drainage basket, 103 ... garbage, 104 ... water sealing part, 105 ... counter electrode, 107 ... water outlet, 110 ... water pool part, 111 ... water outlet, 120 ... water pool, 121 ... filter, 130 ... rotor, 140 ... nozzle, 150 ... ejector, 151 ... air inlet

Claims (9)

A drain trap, wherein the drain trap includes a water reservoir at an upper portion thereof, the water reservoir has at least one water outlet, the water reservoir has a silver electrode on at least a part of a surface thereof, and the silver electrode has A drain trap having an electrically bonded counter electrode, wherein the counter electrode is made of a metal having a lower ionization tendency than silver. A drain trap having a water sealing portion for storing water, wherein a water pool is provided at an upper portion of the drain trap, the water pool has at least one water outlet, and the water pool has silver on at least a part of its surface. A drain trap having an electrode, wherein the silver electrode has an electrically bonded counter electrode, and the counter electrode is made of a metal having a lower ionization tendency than silver. In a drain trap having a water sealing portion in which water is stored, the water sealing portion has a silver electrode on at least a part of its surface, the silver electrode has a counter electrode electrically joined, and further has the silver electrode. A drain trap, wherein both counter electrodes are installed at a position lower than the water surface in the water sealing section, and further comprising means for washing the silver. The drain trap according to claim 1, wherein the silver electrode and the counter electrode are disposed at a lowermost portion of the water pool. The drain trap according to claim 1, wherein a filter is provided at the water inlet. The drain trap according to claim 1, wherein the water outlet is provided along a wall surface of the drain trap. 3. The drain trap according to claim 1, wherein the water pool is inclined such that the water outlet is at a lowermost position. 4. The drain trap according to any one of claims 1 to 3, wherein the silver electrode is coated in a film shape on a surface of a member constituting the drain trap. 4. The drain trap according to claim 1, wherein the counter electrode is coated on the silver electrode in a film shape. 5.

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