JP2009213875A - Bathroom sterilization unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathroom sterilization unit wherein seal water after bathing is sufficiently replaced with sterilized water flowing into a drain trap via a wash place floor. <P>SOLUTION: The bathroom sterilization unit includes a sterilized water producing device, a sterilized water delivery part, an opening/closing valve switchable to delivery and stop water from the sterilized water delivery part, and a control device to control the opening/closing valve and the sterilized water producing device. When the control device receives a sterilized water delivery instruction, sterilized water more than three times as much volume of seal water in the drain trap is delivered. Further, the sterilized water production device is installed midway the water feed pipe. Furthermore, the sterilized water delivery part delivers sterilized water to the bathroom floor against the drain down grade on the wash place floor. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a bathroom sterilization unit that suppresses generation of bacteria in a drain trap by discharging sterilizing water to a bathroom washroom.

2. Description of the Related Art Conventionally, bathroom antifouling devices have been proposed that suppress the generation of bacteria by spraying sterilizing water containing bactericidal substances or ions on bathroom walls and washroom floors (see, for example, Patent Document 1).
In such a bathroom antifouling device, sterilizing water is sprayed on the bathroom wall or washroom floor in the form of mist, granule, flowing water, etc., so that dirt generated on the surface of the bathroom wall or washroom floor caused by bacteria is removed. Preventing is disclosed. Further, the sterilizing water sprayed on the washing floor or bathroom wall flows along the drainage gradient on the washing floor, is attached to the washing floor, and is collected in a drain trap that can form a sealed water.

Japanese Patent Laid-Open No. 9-220273

  However, since Patent Document 1 does not consider the suppression of the generation of bacteria in the drain trap, there is a problem that the propagation of bacteria in the drain trap cannot be sufficiently suppressed. In general, the sealed portion of the drain trap immediately after bathing contains a large amount of organic contaminants such as sebum, shampoo, soap scum, etc., and therefore is in an environment in which bacteria are very easy to propagate. Even if sterilizing water is allowed to flow in a state where a large amount of such organic dirt is present, the sterilizing effect is reduced. Accordingly, it is required to sufficiently replace the sealed water remaining in the drain trap immediately after bathing with sterilizing water.

  However, since the sterilizing water flows into the drain trap via the washing area, the flow rate of the sterilizing water flowing into the drain trap varies depending on the size and shape of the bathroom and the spraying form of the sterilizing water. There was a possibility that the inside of the drain trap could not be completely replaced with sterilized water.

  This invention is made in view of the above-mentioned problem, and provides the bathroom sterilization unit which can fully replace the sealing water after bathing with the sterilization water which flowed in the drain trap via the washing floor.

  According to one aspect of the present invention, a bathtub, a washing floor adjacent to the bathtub, a drain trap attached to a drain outlet of the washing floor and capable of forming sealed water, and sterilizing water generation capable of generating sterilizing water A sterilizing water spouting unit for discharging sterilizing water generated by the sterilizing water generating device onto the washing floor, an on-off valve capable of switching between water discharge and water stopping of the sterilizing water spouting unit, the on-off valve, and the A control device that controls the sterilizing water generating device, and when the control device receives a sterilizing water discharge command, the control device discharges sterilizing water at least three times the amount of sealed water in the drain trap from the sterilizing water discharging unit. It is characterized by.

  According to the bathroom sterilization system according to the present invention, it is possible to provide a bathroom sterilization unit that can sufficiently replace the sealed water after bathing with sterilized water that has flowed into the drain trap via the floor of the washroom.

The figure which shows the whole outline | summary of one Embodiment of the bathroom sterilization system which concerns on this invention. It is a figure which shows the function part installed in the bathroom counter back surface, (a) is a top view, (b) is a front view, (c) is a side view. It is a figure which shows the detail of a function part, (a) is a front view, (b) is a side view. The figure which illustrates arrangement | positioning of a silver electrode typically. The figure which shows the structure of a watering nozzle. It is a figure which shows the rotary body of a watering nozzle, (a) is a top view, (b) is BB sectional drawing, (c) is CC sectional drawing, (d) is DD sectional drawing, (e) EE sectional drawing. The exploded sectional view of a watering nozzle. The top view which shows the dispersion | distribution state of sterilization water. The elevation which shows the dispersal state of sterilization water. The perspective view which shows the dispersion | spreading state of the sterilization water around a drainage pit. The figure which shows the inside of a drainage pit. It is a figure which shows the hair catcher with which the drain trap was mounted | worn, (a) is a perspective view, (b) is sectional drawing. The schematic diagram showing the drain trap sealing water. The graph showing the replacement rate of a unit bath drain. The graph showing the replacement rate with respect to the washing | cleaning flow rate of a unit bath drain outlet. The top view (a) which shows the dispersal state of sterilization water, and the figure (b) showing the flow of the water of a floor surface.

  An embodiment of a bathroom sterilization unit according to the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an overall outline of a bathroom sterilization system according to this embodiment.

  This bathroom sterilization system includes a bathtub 2, a washing floor 3 adjacent to the long side of the bathtub 2, and a bathroom horizontally installed on the first wall 4 facing the bathtub 2 across the washing floor 3 from the bathtub 2 side. It comprises a counter 5 and a bathroom sterilizer 1. The washing floor 3 has a downward slope for draining into the drain pit 7. Here, the bathroom counter 5 is attached to the second wall surface 42 and is disposed at a position lower than the rim 2 a of the bathtub 2.

  Also, in this bathroom, there are a bath apron 6 that covers from the edge of the washing floor 3 on the bathtub 2 side to the edge of the washing floor 3 side of the bathtub 2, and the washing floor 3 on the edge of the bathtub 2 side of the washing floor 3 A drainage pit 7 is provided which is lower than the drainage pit 7 and is provided with a drainage trap. A drainage lid 8 is provided on the upper surface of the drainage pit 7 with a gap that allows water on the washing floor to flow into the drainage pit 7. Placed. An illumination 44 is installed above the second wall surface 42 to which the bathroom counter 5 is attached. A lighting switch 45 is installed on a wall surface such as a changing room in front of the bathroom, and controls lighting and extinguishing of the lighting 44.

  The bathroom sterilizer 1 includes a control box (control device) 10, a functional unit 11, a watering part 12 corresponding to a sterilizing water spouting part, and a remote controller 13.

  The control box 10 is installed behind the ceiling of the bathroom, and controls a later-described solenoid valve and electrolytic cell in the functional unit 11 according to an instruction from the remote controller 13. The functional unit 11 is a unit that generates sterilizing water, and is built in the bathroom counter. A sprinkling nozzle 12 that sprays the sterilizing water is connected to the tip of the functional unit 11.

  The remote controller 13 is installed on a wall surface such as a changing room in front of the bathroom, and includes a switch 13a and an LED 13b. When the switch 13a is turned on, the bathroom sterilizer 1 starts operating, and the LED 13b is turned on to indicate that the bathroom sterilizer 1 is operating.

  Inside the bathroom counter 5, as shown in FIG. 2, a water supply pipe 15 and a hot water supply pipe 16 for supplying water / hot water to a washing faucet (water discharger) are provided. Among these, the water supply pipe 17 is branched and a tap water introduction pipe 17 for supplying water to the functional unit 11 is connected.

  A stop cock 18 is provided in the middle of the tap water introduction pipe 17, and by closing the stop cock 18, when removing the functional unit 11, it will not hinder normal use of the bathroom. It has become.

  The water introduced by the tap water introduction pipe 17 is transformed into sterilized water in the functional unit 11, and is sent to the sprinkling unit 12 through the sterilized water outlet pipe 19.

  As shown in FIG. 3A, the functional unit 11 includes a solenoid valve 22, a constant flow valve 23, an air release valve 24, in order in the case 20 via an inlet 21 connected to the tap water introduction pipe 17. The check valve 25 and the electrolytic cell 26 are communicated, and the electrolytic cell 26 is connected to the sterilizing water outlet pipe via the outlet 27. Here, the inflow port and the outflow port are installed so as to be arranged on the front end side of the bathroom counter, and the axes of the inflow port and the outflow port are arranged at diagonal positions. The pipe part for communicating the inlet and outlet through the electrolytic cell goes straight from the inlet to the rear end side of the bathroom counter, and goes straight from the outlet to the rear end side of the bathroom counter. The return path part is bent in a U-shape to communicate the end part of the return path part and the bathroom counter rear end part of the return path part, and attached so that the return path part is disposed at a higher position than the forward path part. And a bent portion.

The functional unit 11 has a waterproof structure by filling the case 20 with a urethane resin 28. Thereby, the waterproofing of the terminal part of an electrical component and the water leakage from a water flow part are prevented.
In addition, as shown in FIG. 3B, in order to minimize the size of the functional unit 11, the axes of the inlet 21 and the outlet 27 are disposed so as to be diagonal to the case 20.

  When the switch 13 a of the remote controller 13 is pressed, the electromagnetic valve 22 is opened and closed according to an instruction from the control box 10. Then, when the electromagnetic valve 22 is opened, water is passed, and the flow rate is kept constant by the constant flow valve 23. Thereby, the density | concentration of the produced | generated sterilization water is kept constant, At the same time, the water pressure of the sterilization water sprayed from the sprinkling part 12 is also kept constant, and it becomes possible to spray sterilization water in a desired range. .

  When the water flow state is reached, energization of the electrode 29 of the electrolytic cell 26 is started, and the electrode 29 is electrolyzed to generate silver ions. The water containing silver ions is sent to the watering nozzle 12 as sterilizing water. The sterilized water thus generated is prevented from flowing back to the water supply pipe 15 by the check valve 25.

  The air release valve 24 is closed when energized (solenoid valve is open) to prevent water from leaking to the outside, and is open when standby (solenoid valve is closed). The downstream side of 25 is replaced with air. This prevents residual water from remaining in the electrolytic cell 26.

  The electrode 29 of the electrolytic cell 26 is formed of silver, a silver alloy, or a silver-plated metal, and silver ions are generated when the electrode 29 is electrolyzed. As shown in FIG. 4A, the electrodes 29 are installed in a positional relationship such that the electrodes 29 are horizontal. Thereby, as shown in FIG.4 (b), the conduction | electrical_connection state of the electrode by the surface tension of residual water is avoided at the time of standby. By doing in this way, even if an electrolytic cell is made compact (thickness is made thin), it can avoid that an electrode will be in a conduction | electrical_connection state by the surface tension of residual water at the time of standby.

  As shown in FIG. 5, the watering nozzle 12 is roughly composed of a body 30 connected to the sterilizing water outlet pipe 19 and a rotating body 31 pivotally supported at the tip. The rotating body 31 is also divided into an upper member 32 and a lower member 33, and is rotatably attached to the tip of the body 31 by a fixing screw 35 via a washer 34 (see FIG. 7). Since the rotary body 31 is formed so as to be removable and dismountable in this way, the inside thereof and the tip of the body 30 can be cleaned.

  As shown in FIG. 6A, the rotating body 31 (lower member 33) is provided with four to eight liquid ejection holes 33a, 33b, 33c, and 33d. Since these liquid ejection holes 33a, 33b, 33c, and 33d are provided with the same distance from the rotation center of the rotating body 31 in the same direction, the liquid jet holes 33a, 33b, 33c, and 33d are rotated by the water flow when the water flows. Can be sprayed evenly.

  Among these, the liquid ejection hole 33a opens horizontally as shown in FIG. 6B, but the liquid ejection hole 33b opens at an elevation angle of 4 ° as shown in FIG. 6C. Further, as shown in FIG. 6 (d), the liquid ejection hole 33c opens at an elevation angle of 8 °, and the liquid ejection hole 33d opens at an elevation angle of 12 ° as shown in FIG. 6 (d).

Thereby, it can spread evenly from the water sprinkling part vicinity of the washing place floor 3 to a distant place. In addition, the elevation angle of each liquid ejection hole is appropriately determined according to the size of the washing floor to be sprayed.
By the way, as shown in FIG. 7, the tip of the body 30 is formed by a stepped end 30b of the diameter D2 further ahead of the shaft tip 30a formed of the diameter D1. Correspondingly, the upper member 32 is formed with an insertion hole 32a having a diameter D1 'through which the shaft tip 30a can be inserted, and the lower member 33 is inserted with the shaft tip 30a through which the most distal end 30b can be inserted. An insertion hole 33e having an impossible diameter D2 '' is formed.

  This prevents the upper member 32 and the lower member 33 from being attached upside down by mistake after disassembling the rotating body 31, so that the liquid ejection holes 33b, 33c, 33d can secure an elevation angle and are always upward. Open to the direction.

  The bathroom sterilization system according to the present embodiment is configured as described above, and the sterilized water spray state will be described below. FIG. 8 is a plan view showing a sprayed state of sterilizing water, and FIG. 9 is an elevation view.

  The area G shown in FIG. 8 is an area where sterilizing water is mainly sprayed from the liquid ejection holes 33a having an elevation angle of 0 °, and the area H is mainly sterilizing from the liquid ejection holes 33b having an elevation angle of 4 °. The areas where water is sprayed, similarly the areas I and J, are areas where sterilized water is mainly sprayed from the liquid ejection holes 33c and 33d having elevation angles of 8 ° and 12 °, respectively. As described above, the sterilizing water can be sprayed over a wide range by changing the elevation angles of the liquid ejection ports 33a, 33b, 33c, and 33d.

  On the other hand, the sterilizing water is not sprayed directly on the area F shown in FIG. In this area, as shown in FIG. 9, the second wall surface 42 on which the bathroom counter is installed on the back side from the watering nozzle 12, the first wall surface 4 near the second wall surface, or the second wall surface The water is rebounded by hitting the bath apron 6 in the vicinity, and after rebounding, it is washed with sterilized water flowing down along the gradient of the washing floor 3. Thus, since the sprinkling nozzle 12 rotates and discharges water, if the liquid ejection holes for the areas G, H, I, and J areas away from the sprinkling nozzle are provided, the vicinity of the sprinkling nozzle 12 is inevitably provided. A large amount of sterilized water will flow on the floor of the washroom. Thereby, it becomes possible to spread the sterilizing water over the entire surface of the washing floor. In particular, in order to spray the sterilizing water to the far side of the watering nozzle 12 only by the water pressure, there is a limit to the total hole area of the liquid ejection holes, but in this embodiment, the areas G, H, Since only the liquid ejection holes for the I and J areas are sufficient, the sterilizing water can be spread over the entire surface of the washing floor with only tap water pressure.

  In this respect, the watering nozzle 12 is installed on the water in the vicinity of the wall surface 4 facing the bathtub 2 and the washing floor 3, i.e., at a position diagonal to the drainage pit 7. There is no area that does not turn around.

  Moreover, since the watering nozzle 12 is installed in the lower part of the bathroom counter 5, the lower part of the bathroom counter 5 is shaded so that the sterilizing water does not rotate.

  On the other hand, since the elevation angle of the liquid outlet 33d can be kept below a certain level, it is not economically spread over a wide area and is economical, and as shown in FIG. Since the height of the rim 2a is not exceeded, sterilizing water is not applied to the bath lid.

  Further, since the sterilizing water is also sprayed toward the bath apron 6, as shown in FIG. 10, the gap formed between the drain lid 8 on the drain pit 7 and the bath apron 6 hits the bath apron 6. Washed with sterilized water flowing down. In this manner, an area that cannot be covered only by the sterilizing water flowing down the washing floor 3 (the edge of the drainage pit on the side of the bath apron 6 and particularly the center thereof is difficult to flow the sterilizing water flowing on the washing floor). can do.

  FIG. 11 shows the structure inside the drainage pit 7. The drainage pit 7 is formed with a drainage recess formed in a concave shape, and a drainage trap sealing cylinder 100 having an opening at the top is installed at the bottom of the drainage pit 7. A hair catcher 90 having a mesh portion is detachably attached to the opening 100. The sterilizing water that flows into the drain pit 7 flows from the entire circumference in the drain pit due to the flow that flows through the washing floor 3 and the flow that falls on the bath apron 6. By spraying the sterilizing water spray nozzle 12 so that the sterilizing water flows from the entire circumference into the drain pit, the sterilizing water is brought into contact with the entire surface of the drain pit 7 to prevent the bacteria causing the slime from growing.

  FIG. 12 shows a hair catcher 90 attached to a drain trap. The hair catcher 90 includes an outer peripheral portion 90a, a mesh portion 90b, a central opening 90c, and a handle portion 90d. The central opening 90c allows water to flow through the opening to the drain trap if the mesh portion 90b is blocked with dust. The mesh part 90b of the hair catcher has an inclined part that inclines downward from the outer side toward the inner side. Since the sterilizing water can go down the inclined portion and reach the central opening 90c, the entire surface of the mesh portion 90b can come into contact with the sterilizing water. The hair is trapped in the mesh, where soap scum and shampoo are entangled, and bacteria are propagated, adding slime and making the cleaner feel uncomfortable, but according to the present invention, the mesh of the hair catcher Since sterilizing water can be brought into contact with the entire surface of the part and the hair becomes slimy, the cleaning load is reduced. FIG. 12 (b) shows a cross section of the drain trap water seal tube 100. The drain trap water seal tube 100 has a water seal portion 100a and a hair catcher attachment portion 100b, and an outer peripheral portion 90a of the hair catcher is attached to the attachment portion 100b. Insert and prevent hair catcher from coming off. The water that has flowed into the drain pit 7 passes through the mesh portion 90b of the hair catcher and flows into the sealing portion 100a of the drain trap. As described above, since the hair captured by the mesh portion does not become slimy, the user can easily remove the hair from the mesh portion while grasping the handle portion and removing the hair catcher.

  FIG. 13 shows the structure of the drain trap. This is a drain trap having a so-called one-trap structure in which the drainage of the bathtub 2 side and the washing room 3 side merge. This drain trap structure is provided on the side of the trap body for connecting a drain pipe with a bowl-shaped trap body having a washing ground drain inlet at the top, a drain trap sealing tube 100 attached in a state of being inserted into the trap body. A drainage outlet 54 formed and a bathtub water inlet 53 formed on the side surface of the trap body for connecting a bathtub drainage pipe 52 communicating with the bathtub drainage port 51 formed on the bottom surface of the bathtub 2 are provided. The waste water overflowed from the overflow portion 55 is discharged from the drain outlet 54. About 1-2 L of drain trap water 50 is always present in the trap portion. Such a confluent drain trap having a one-trap structure can be reliably sterilized by the present invention because only one drain trap is installed in the bathroom.

  FIG. 14 shows the result of investigation on the replacement rate of the drain trap seal water. A 5% saline solution in which salt was dissolved in pure water was prepared and used for measuring the substitution rate. The electric conductivity of this saline solution was 7.2 S / m. About 30 ml of this saline solution was measured with a graduated cylinder, put into a drain outlet, and the electrical conductivity before washing was measured. The unit bath has a size of 1700 mm × 1700 mm, a one trap structure, and a trap sealing water amount of 1.4 L. After measuring the electrical conductivity before washing, a drain trap drain tube 100 and a hair catcher 90 were attached, a drain lid 8 was installed, and shower water was discharged on the washing floor. Shower water was discharged on the washing floor at a predetermined flow rate with a flow meter attached to the shower head for a predetermined time. When adjusting the shower flow rate, it drains into the bathtub and flows into the drainage outlet, so that the saline solution is diluted. Therefore, a poly container was prepared, and the flow rate was adjusted while draining there. When the flow rate matched, the shower was sprinkled on the floor for a predetermined time. After shower water discharge, the hair catcher and the drain tube were removed, and the electrical conductivity of the drain trap water 50 was measured. The amount of water discharged from the shower (amount of washing water) was 0.5, 1, 2, 4, 7, and 14 L at flow rates of 2, 4, 8, and 12 L / min, and a total of 24 data were measured.

  FIG. 14 is a graph in which the abscissa represents a value obtained by dividing the amount of cleaning water by the trap capacity of 1.4 L at each flow rate when each amount of water is allowed to flow. When the amount of cleaning water / trap volume is 1, the replacement rate is around 80%, and the organic dirt accumulated in the drain trap after bathing cannot be sufficiently replaced. Further, when the washing water amount / trap capacity is 2, the replacement rate exceeds 90%. However, there is a variation depending on the flow rate, and when the flow rate is low, there is a possibility that the organic dirt cannot be sufficiently replaced. In particular, since the sterilizing water sprayed on the washing floor flows into the drain trap via the washing floor, the flow rate of the sterilizing water flowing into the drain trap varies depending on the site depending on the size of the washing floor. It will be. This is not preferable because it causes a variation in the substitution rate. On the other hand, it was found that when the washing water amount / trap capacity was 3 or more, the substitution rate exceeded 99% at each flow rate, and a stable high substitution rate could be obtained. That is, 99% of the inside of the drainage trap can be replaced with the sterilizing water without depending on the flow rate that varies depending on the floor size of the washing place, etc., so that it is possible to prevent the drainage trap from being more reliably prevented.

  If there is a replacement rate of 99 percent, the amount of organic matter in the drain trap can be reduced to 1/100 by discharging the wash water. Bath water after a person takes a bath contains sebum and dirt, which increases the organic matter concentration. As a result of monitor measurement when the number of bathing persons was 3, it was found that TOC (total amount of carbon) increased to about 10 ppm. If the replacement rate is 99% or more, the TOC = 10 ppm bath water discharged from the bath and collected in the drain trap becomes 1 / 100th of the 0.1 ppm level, which is the same level as tap water. The high replacement rate has an effect of preventing the organic matter that is a nutrient source of bacteria from staying in the drainage trap, and has an effect of suppressing slime and odor of the drainage outlet in combination with the action of the sterilizing water.

  FIG. 15 is a graph in which the trap replacement rate is plotted against the cleaning flow rate. When the same amount of water was given, it was found that the larger the washing flow rate, the better the replacement rate. The water washed in the washing area flows into the drainage pit 7, passes through the inside of the trap drain 100, exits from the opening at the bottom of the cylinder, and exits outside the cylinder and overflows from the drain outlet 54. It can be seen that the greater the inflow, the greater the energy that pushes out the wastewater.

  FIG. 16 is an example of water discharge of sterilizing water according to the present invention. FIG. 16 (a) is the same as FIG. 8, and FIG. 16 (b) shows the flow of sterilizing water on the floor surface. Since the spray nozzle 12 rotates, the sterilizing water is sprayed in a circular shape around the nozzle. Depending on the nozzle outlet angle, the spray area of the floor surface of the sterilizing water becomes the GHIJ area. When there is a spout other than the floor, sterilizing water hits either the three wall surfaces or the bath apron 6. In the F area of the floor surface, there is not provided a spout for direct contact with the sterilized water on the floor surface, and the sterilized water that has fallen on the floor surface by hitting the wall flows to the drain port according to the inclination of the floor. In other words, when sterilizing water is sprayed on the washing floor from the spray nozzle to the drain recess, the sterilizing water is vigorously drained by the water and drains to the drain, but on the washing floor near the drain from the spray nozzle. If the sterilizing water is not substantially discharged, the sterilizing water can be retained on the washing floor for a long time. The spray area G closest to the spray nozzle 12 sets the water discharge port at an angle applied to the drain port. The flow of sterilizing water that directly hits the GHIJ area from the spray nozzle 12 has a speed component that moves away from the drainage port, collides with the flow that flows from the wall, and causes the action of reducing the drainage speed of the sterilizing water. Thus, the sterilized water sprayed from the spray nozzle 12 is prevented from flowing directly into the drain port, and the sterilized water is retained on the floor for as long as possible. The sterilized water that has become easy to stay on the floor by sprinkling the sterilizing water on the washing floor from the watering nozzle 12 against the downward slope of the drain on the washing floor, flows into the drain pit 7 as time passes. To come. In particular, immediately after the spraying from the spray nozzle is finished, the sterilizing water on the washing floor flows toward the drain outlet all at once, leading to an increase in the inflow rate. From the result of FIG. It is possible to discharge more organic matter that is a source of nutrition.

  Moreover, since the sterilizing water production | generation apparatus is attached in the middle of water supply piping, the disinfected water sprayed is also tap water temperature. Usually, since bath water and shower water remain in the drain trap after bathing, it is often hot water, which activates the propagation of bacteria, which is not preferable. As in the present invention, it is possible to further suppress the growth of bacteria by replacing the inside of the drain trap with cold water such as tap water.

  Silver ionic water can be mentioned as a preferable sterilizing water in the present embodiment. Silver ions are said to adsorb to the enzyme in the bacterial cell membrane and inhibit the action of the enzyme, which makes it impossible for the bacteria to sustain their lives. There is also an action of coating the surface of the base material that comes into contact, and it becomes difficult for bacteria to propagate on the surface of the base material. With a sterilizing agent having good reactivity, the sterilizing agent reacts instantly, and there is a problem in terms of durability of antibacterial activity. In this respect, silver ions can coat the surface of the base material to prevent the adhesion of bacteria and have a bactericidal power, so that the growth of bacteria on the surface of the base material can be effectively suppressed. At that time, by combining with a cleaning method for increasing the replacement rate of the drain trap, it becomes possible to suppress slime and odor on the washing floor and drain outlet for a long period.

  Of course, water containing a bactericidal substance or ions other than silver ions is not excluded as unusable. Specifically, free chlorine, antibacterial metals (for example, copper, zinc, etc.) or their ions, ozone, ozone-containing water, combined chlorine, organic chlorine-based disinfectant, organic phosphate-based disinfectant, veloxocarbonate ion or its It is possible to envisage the use of salts, alcohol-based disinfectants and the like.

  When the bathroom sterilization unit of the present invention receives a sterilizing water discharge command, the bathroom sterilization unit discharges from the sterilizing water spouting part sterilizing water more than three times the amount of water sealed in the drain trap. As described above, it is conceivable that, among the water discharged more than three times the amount of sealed water, only the tap water is discharged in the first half, and water containing a sterilizing component is discharged in the second half of the water discharge, which is the second embodiment of this mission. Of the amount of water discharged from the sterilizing water spouting part, the water in the first half of the water discharge flows downstream from the drain trap, so even if there is a sterilizing component in that part, it must be discarded without exhibiting effective sterilizing action become. In this embodiment, by flowing sterilizing water in the latter half of the water discharge, the sterilizing component can be efficiently left on the washing floor and the drain trap, and the supply life of the sterilizing component can be extended.

  In the second embodiment, it is preferable that the water discharge flow rate is the same before and after water discharge including only tap water in the first half of water discharge and water discharge including a sterilizing component in the second half of water discharge. Then, even in the sterilizing water spouting, the sterilizing component can be supplied while maintaining the dirt discharging power, and a synergistic effect of improving the replacement rate of the drain trap and providing the sterilizing power is produced. From FIG. 15, the replacement rate of the drain trap becomes better as the cleaning flow rate is higher. If the flow rate of the sterilizing water discharge is lower than the first half tap water flow rate, the replacement rate of the drain trap will be lower than that of the first half water discharge, and the dirt discharge capacity will be reduced. Since it is necessary to compensate with water discharge, the total water discharge amount for realizing the target replacement rate will increase. Therefore, by performing the entire water discharge at a constant flow rate, it becomes possible to supply and retain the sterilizing component in the drain trap while efficiently discharging dirt.

  Also in the second embodiment of the preceding paragraph, a sterilizing apparatus configuration in which two silver plates are installed in the water channel and silver ions are eluted in water by flowing a direct current through the silver plate is preferable (FIG. 4). In the silver electrode part, the pressure loss to the flow is small, and it becomes possible to discharge water at a flow rate of 10 L / min or more at a general household water supply pressure (0.05 MPa or more). Furthermore, since silver ions exhibit sterilizing power at a concentration of 0.1 ppm, less generation energy is required. With a power of about 0.1 W, a silver ion concentration of 0.1 ppm can be generated at a pass of 10 L / min.

  Further, the present invention is not limited to the washing place sterilizing water spouting shown in the above embodiment. Embodiments of the present invention include forms in which the inside of a bathtub is sterilized with sterilized water, forms in which sterilized water is sprayed over the entire bathroom, and the like.

  The embodiments described above are for illustrative purposes and do not limit the scope of the invention. Accordingly, those skilled in the art can employ embodiments in which each or all of these elements are replaced by equivalents thereof, but these embodiments are also included in the scope of the present invention.

  In addition, according to the bathroom sterilization unit by this embodiment mentioned above, the following effects are acquired. The sterilized water that has flowed into the drain trap via the floor of the washing place can sufficiently replace the sealed water after bathing, and it is possible to suppress the slime and odor of the drain outlet for a long period of time.

DESCRIPTION OF SYMBOLS 1 Bath sterilizer 2 Bath tub 2a Rim 3 Washing floor 4 First wall 5 Bathroom counter 6 Bath apron 7 Drain pit 8 Drain lid 10 Control box 11 Function unit 12 Watering nozzle 13 Remote control 13a Switch 13b LED
13c Notification means 15 Water supply pipe 16 Hot water supply pipe 17 Tap water introduction pipe 18 Stop cock 19 Sterilization water outlet pipe 20 Case 21 Inlet 22 Electromagnetic valve 23 Constant flow valve 24 Atmospheric release valve 25 Check valve 26 Electrolyzer 27 Outlet 28 Urethane resin 29 Electrode 30 Body 30a Shaft tip 30b Cutting edge 31 Rotating body 32 Upper member 32a 33e Insertion hole 33a, 33b, 33c, 33d Liquid ejection hole 33 Lower member 34 Washer 35 Fixing screw 42 Second wall surface 44 Illumination 45 Illumination Switch 50 Drain trap seal 51 Bath drain 52 Bath drain 53 Bath water inlet 54 Drain outlet 55 Overflow portion 90 Hair catcher 90a Outer peripheral portion 90b Mesh portion 90c Center opening 90d Handle portion 100 Drain trap seal tube 100a Sealing portion 100b Hair catcher attachment

Claims (4)

A bathtub and a wash floor adjacent to the bathtub;
A drain trap attached to the drain of the washing floor and capable of forming a sealed water;
A sterilizing water generator capable of generating sterilizing water;
A sterilizing water spouting unit for discharging the sterilizing water generated by the sterilizing water generating device onto the washing floor;
An on-off valve capable of switching between water discharge and water stoppage of the sterilizing water discharger,
A control device for controlling the on-off valve and the sterilizing water generator,
When the control device receives a sterilization water discharge command, the bathroom sterilization unit discharges from the sterilization water discharge portion the sterilization water that is three times or more of the sealing water amount in the drain trap. The bathroom sterilizing unit according to claim 1, wherein the sterilizing water generating device is attached in the middle of a water supply pipe. 3. The bathroom sterilizing unit according to claim 1, wherein the sterilizing water spouting unit discharges sterilizing water onto the washing floor so as to counter a downward slope of drainage on the washing floor. The said sterilizing water production | generation apparatus produces | generates silver ion water, The bathroom sterilization unit in any one of Claims 1-3 characterized by the above-mentioned.

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