JP2018162648A - Toilet device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively suppress filth adhering to a bowl surface without imposing heavy burden on a drain piping system.SOLUTION: A toilet device comprises: a casing installed at a rear part of a bowl in a flush toilet bowl; a foam nozzle provided at a bottom surface of the casing and discharging foam toward the bowl; driving means rotating a discharge port of the foam nozzle in a horizontal direction; foam adjusting means adjusting an amount of the foam discharged from the foam nozzle; and control means controlling operation of the driving means and the foam adjusting means. The control means operates the foam adjusting means or the driving means so that an amount of the foam is larger in a state that the discharge port of the foam nozzle faces a rear part of the bowl than that in a state that the discharge port of the foam nozzle faces a front part of the bowl.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a toilet apparatus provided with a casing installed behind a bowl of a flush toilet and a foam nozzle provided on the bottom surface of the casing for discharging foam toward the bowl, and in particular, splashes of excrement are present in the toilet bowl. The present invention relates to a toilet device suitable for suppressing adhesion.

Conventional flush toilets spray water droplets in order to suppress dirt attached to the bowl surface (see, for example, Patent Document 1).
In such a case, normal stool can be prevented from adhering to the bowl surface, but, for example, after receiving a drug absorbed from the intestinal tract, the ratio of glycoprotein contained changes and mucin mass increases. In the case of the stool having, there is a problem that the adhesion to the bowl surface described above may not be suppressed. It is known that the properties of stool change not only with the aforementioned drugs but also with the diet. Therefore, it is necessary to consider not only those who receive the drug administration but also a wide range of filth deposits on the bowl surface.

In addition, in order to prevent stool from adhering to the bowl surface, there is also one in which foam by a surfactant is sprayed on the bowl surface (for example, see Patent Document 2).
However, in this case as well, although the foam is sprayed on the entire bowl surface by the rotating nozzle, it is possible to prevent the attachment of filth, but on the other hand, it is discharged too much and the excrement is transported by restricting ventilation in the drainage pipe. In particular, there is a problem that bubbles are not sufficiently supplied behind the bowl with stool droplets that are most harmful and explode from the anus and pressed at a high flow rate.

JP 2013-155532 A Japanese Patent Laid-Open No. 2006-104949

  The present invention has been made in order to solve the above problems, and an object of the present invention is to effectively suppress dirt attached to the bowl surface without imposing a heavy burden on the drainage piping system.

  According to this invention comprised in order to achieve the said objective, The casing installed in the bowl back of a flush toilet, and the foam nozzle provided in the bottom face of this casing and discharging a foam toward the said bowl are provided. A toilet device for rotating a foam nozzle outlet horizontally, a foam adjusting means for adjusting the amount of foam discharged from the foam nozzle, and a control for controlling the operation of the drive means and the foam adjusting means And the control means is configured so that the amount of foam is larger when the foam nozzle discharge port faces the rear of the bowl than when the foam nozzle discharge port faces the front of the bowl. The adjusting means or the driving means is operated.

  In the toilet device configured as described above, a large amount of foam can be discharged to the rear of the bowl where stool droplets are strongly attached, and stool adhesion at the rear of the bowl can be suppressed. Also, in the front of the bowl where the stool adhesion is weaker than the back, by reducing the amount of foam discharged from the back of the bowl, the bowl as a whole can be discharged with an appropriate amount of foam instead of an excessive amount. It can also prevent harmful effects on the drainage piping system.

In the present invention, preferably, the bottom surface of the casing is provided with a guide that collides with bubbles discharged in a state where the discharge port of the bubble nozzle faces the back of the bowl.
Therefore, the foam discharged to the rear of the bowl can be diffused by colliding with the guide, and widely diffused to the rear of the bowl. Therefore, it is possible to suppress stool adhesion on the entire rear side of the bowl with a simple configuration.

In the present invention, preferably, the control means is configured such that, in a state where the discharge port of the foam nozzle is directed to the rear of the bowl, the flow rate of foam discharged from the discharge port is greater than a state where the discharge port of the foam nozzle is directed to the front of the bowl. The bubble adjusting means and the driving means are operated so as to be large and the rotation speed is slow.
Therefore, by controlling both the rotation speed of the foam nozzle and the flow rate of the foam discharged from the discharge port, it is easy to sharpen the foam discharge amount at the back and front of the bowl, and there is a risk of suppressing the ventilation of the drainage pipe. While suppressing the amount of certain foam as much as possible, it is possible to more effectively suppress stool adhesion in consideration of the possibility of stool adhesion.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to suppress the stool adhesion in the back of a bowl in which a stool droplet tends to adhere strongly in a bowl, there exists an effect that a drainage piping system is not adversely affected by the discharge of a suitable amount rather than being excessive. .

It is sectional drawing which shows the foam distribution state in the toilet apparatus of embodiment of this invention. It is a system block diagram in the toilet apparatus of embodiment of this invention. It is a top view which shows the rotation angle of the discharge outlet of the foam nozzle in the toilet apparatus of embodiment of this invention. 4 is a graph showing a rotation angle, a bubble discharge flow rate q, and a rotation speed ω of the discharge port of the bubble nozzle in FIG. It is an Example of the dispersion state in the AA cross section of FIG.

FIG. 1 is a cross-sectional view showing a state of foam dispersion in a toilet apparatus according to an embodiment of the present invention. FIG. 2 is a system block diagram of the toilet apparatus according to the embodiment of the present invention.
The toilet device 1 is constituted by a flush toilet 10 and a casing 100 even fixed to the rear part thereof. The casing 100 stores a functional unit for foaming, which will be described later, and a toilet seat 200 and a toilet lid 300 are pivotally supported. The bottom of the bowl 12 of the flush toilet 10 is connected to a substantially inverted U-shaped trap 14 composed of an ascending conduit and a descending conduit. The downstream end of the trap 14 is connected to a drain socket 15. And is connected to the drainage pipe 16 of the building. The trap 14 accumulates water 13 in the bowl 12 to prevent odors and pests from entering the toilet from the drain pipe 16 of the building.

  The user's stool falls into the accumulated water 13 from the anus which is considered to be behind the center line C. It is said that the characteristics of stool change not only with those who receive drugs absorbed by the intestinal tract, but also with dietary fiber and lactic acid intake, especially when excreted with explosive momentum, flush toilet The stool splash may adhere to the back of the ten bowls 12 with adhesiveness. In that case, since the adhesion may not be suppressed only by the sprayed water droplets, the toilet apparatus 1 in the embodiment of the present invention discharges the foam containing the surfactant from the foam nozzle 48 to the bowl 12. . When the foam containing the surfactant is discharged, the foam containing the surfactant described above is discharged together with the excrement toward the drain pipe 16 of the building at the time of toilet cleaning. Since the foam containing the surfactant has a large volume, the drainage pipe 16 may fill the pipeline. In that case, ventilation cannot be performed sufficiently, and not only the discharge performance of the flush toilet 10 is lowered, but also the transport performance of excreta including toilet paper in the drainage pipe 16 is lowered. Therefore, in the toilet apparatus 1 according to the embodiment of the present invention, as will be described later, the filth attached to the bowl 12 is suppressed without giving a burden to the drain pipe 16 by suppressing foam discharge except for the rear where the excrement splash is concerned. Can be suppressed.

  The configuration of the toilet apparatus 1 will be described in more detail based on FIG. Although not shown in FIG. 1, a water storage tank 20 for storing washing water for washing the flush toilet is placed on the rear upper surface of the flush toilet 10 behind the casing 100. . The flush toilet 10 discharges excreta together with the water 13 stored in the bowl 12 to the drainage pipe 16 of the building by the water supplied from the water storage tank 20. Wash water is discharged from the water outlet 11 into the bowl 12, flows through the trap 14 and the drain socket 15, and is discharged to the drain pipe 16. The water storage tank 20 stores a predetermined amount of water in the storage tank 22 through a water supply device 21 that opens and closes water supplied from city water. The operation of the user is performed on the operation device 24, and as a result, the drain valve 23 is opened and closed, and a predetermined amount of water is supplied to the spout 11.

  A casing 100 is disposed on the rear upper surface of the flush toilet 10, and foam is sprayed into the bowl 12 from a foam nozzle 48 provided so as to protrude from the bottom surface toward the bowl 12. This operation is controlled by the control means 40, and an operation instruction is given by the operation unit 41. The detergent containing the surfactant stored in the tank 42 is sucked by the pump 43, foamed and discharged by the foam nozzle 48, and sprayed toward the bowl 12. The foam nozzle 48 is rotationally driven in the horizontal direction by a motor 45 as a driving means, and the foam discharged from the discharge port 49 formed in the foam nozzle 48 is sprayed on the entire bowl 12 as will be described later. . The flow rate of bubbles discharged from the discharge port 49 of the bubble nozzle 48 is as follows. This is proportional to the flow rate of the detergent sucked from the tank 42 by the pump 43. Therefore, the pump 43 functions as a bubble adjusting unit, and the flow rate of bubbles discharged from the discharge port 49 can be controlled by changing the driving amount of the pump 43 by the control unit 40.

  FIG. 3 is a plan view showing a rotation angle of the discharge port of the foam nozzle in the toilet apparatus according to the embodiment of the present invention. The rotation angle of the bubble nozzle 48 represents the position of the discharge port 49 formed in the bubble nozzle 48 with respect to the rotation axis of the bubble nozzle 48, that is, the direction in which bubbles are discharged from the bubble nozzle 48. In the present embodiment, as shown in FIG. 3, the foam nozzle 48 rotates clockwise with the rear side of the bowl 12 being 0 ° and the front side being 180 °.

  When excreted with crushing momentum, stool droplets may adhere to the rear part of the bowl 12 of the flush toilet 10 with adhesiveness. As shown in FIG. 3, viscose feces are likely to adhere within a range of approximately 0 ° to 90 ° and 270 ° to 360 ° in terms of rotation angle. The farthest distance from the nozzle 48 to the inner surface of the bowl 12 is in the range of 140 ° to 220 °, but vigorous stool droplets are rarely scattered on the inner surface of the bowl 12 in that range. By suppressing the amount of foam discharged including the surfactant, the possibility of poor ventilation being supplied to the drain pipe 16 is suppressed.

  FIG. 4 is a graph showing the rotation angle, bubble discharge flow rate q, and rotation speed ω of the discharge port of the bubble nozzle in FIG. As described above, the rotation speed ω is decreased for the range of 0 ° to 90 ° and 270 ° to 360 ° in the case of stool droplets and the rotation angle that is likely to be supplied with strong momentum. In addition, the foam discharge flow rate q is increased.

  Specifically, the control means 40 controls the motor 45 to rotate the foam nozzle 48 clockwise (see FIG. 3) so that the direction of the discharge port 49 is from 0 ° to 360 °, and then the motor 45 The rotation direction is switched, and the discharge port 49 is rotated counterclockwise so as to be directed from 360 ° to 0 °. In the clockwise and counterclockwise operations of the foam nozzle 48, the motor 45 is controlled so that the rotational speed ω becomes the low speed ω1 when the rotational angle is in the range of 0 ° to 90 ° and 270 ° to 360 °. Then, the pump 43 is controlled so that the foam discharge amount q from the discharge port 49 becomes the large flow rate q2. On the other hand, when the rotation angle of the foam nozzle 48 is in the range of 90 ° to 270 °, the motor 45 is controlled so that the rotational speed ω becomes the high speed ω2, and the foam discharge amount q from the discharge port 49 is the low flow rate q1. Thus, the pump 43 is controlled.

  In this way, by controlling the rotational speed ω of the foam nozzle 48 and the discharge foam flow rate q, the total amount of foam ejected rearward of the foam nozzle 48 is ejected forward of the foam nozzle 48. It can be more than the total amount of foam being played. Therefore, a lot of bubbles can be discharged to the rear of the bowl 12 where stool droplets are strongly attached, and the stool adherence behind the bowl 12 can be suppressed. Further, in the front of the bowl 12 where the stool adherence is weaker than the rear, the amount of foam discharged is smaller than the rear of the bowl 12, so that the bowl 12 as a whole is not an excessive amount but an appropriate amount of foam. It is possible to prevent the drainage pipe 16 from being adversely affected by this discharge.

  In particular, by controlling both the rotational speed ω of the foam nozzle 48 and the foam flow rate q discharged from the discharge port 49, the amount of foam discharged from the back and front of the bowl 12 can be sharpened, and the drainage can be performed. While suppressing the amount of foam that may suppress the ventilation of the pipe 16 as much as possible, it is possible to more effectively suppress stool adhesion in consideration of the possibility of stool adhesion.

  FIG. 5 is an example of a sprayed state in the AA cross section of FIG. A foam nozzle 48 is arranged at a portion of the bottom surface of the casing 100 facing the bowl 12, and a guide 110 projects from the foam nozzle 48 toward the bowl 12. Specifically, the bottom surface of the casing 100 is arranged such that at least a part of the foam discharged from the discharge port 49 collides with the foam nozzle 48 when the rotation angle is in the range of 0 ° to 90 ° and 270 ° to 360 °. The guide 110 is formed in an arc shape in plan view (see FIG. 3). Still, the surface of the guide 110 that faces the discharge port 49 has an inclined surface 110a that is inclined rearward (side of the bowl 12) from the casing 100 as compared to vertically below.

  When the bubbles discharged from the discharge port 49 of the bubble nozzle 48 collide with the inclined surface 110a of the guide 110, the scattering direction of the bubbles is changed downward and is diffused in the upper and lower direction (vertical direction). Therefore, the foam discharged from the discharge port 49 is scattered in a wide range in the up and down direction behind the bowl 12. Therefore, it is possible to suppress stool adhesion on the entire rear side of the bowl 12 with a simple configuration. In particular, in order to discharge the foam to the front of the bowl 12 where the rotation angle of the foam nozzle having the farthest distance from the foam nozzle 48 to the bowl 12 is 140 ° to 220 °, the foam nozzle was discharged from the discharge port 49. It is difficult to make the discharge direction of the discharge port 49 downward so that the bubbles reach far away, but by using collision and diffusion to the guide 110, fecal droplets may be supplied with strong momentum. The foam can be widely spread behind the high bowl 12.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention.
For example, it is not necessary to control both the rotational speed ω of the foam nozzle 48 and the foam flow rate q discharged from the discharge port 49, and only one of them may be controlled.
In addition, in order to reduce the operating range of the pipe portion that guides the chemical solution containing the surfactant, the bubble nozzle 48 can be rotated less than 360 to increase the reliability as a mechanical structure. The inclined surface 110a may be formed so that the bubbles colliding with the guide 110 are diffused in the width direction (horizontal direction) so that the bubbles are dispersed in a range where the discharge port 49 of the nozzle 48 stops rotating. Good.

DESCRIPTION OF SYMBOLS 1 ... Toilet apparatus 10 ... Flush toilet 11 ... Spout 12 ... Bowl 13 ... Reservoir 14 ... Trap 15 ... Drain socket 16 ... Drain pipe 20 ... Reservoir tank 21 ... Water supply device 22 ... Reservoir 23 ... Drain valve 24 ... Operation Apparatus 40 ... Control means 41 ... Operation part 42 ... Tank 43 ... Pump (foam adjusting means)
45 ... Motor (drive means)
48 ... Foam nozzle 49 ... Discharge port 100 ... Casing 110 ... Guide 110a ... Inclined surface 200 ... Toilet seat 300 ... Stool lid

Claims (3)

A toilet apparatus comprising a casing installed behind a bowl of a flush toilet, and a foam nozzle provided on the bottom surface of the casing for discharging foam toward the bowl,
Driving means for horizontally rotating the discharge port of the foam nozzle;
Foam adjusting means for adjusting the amount of foam discharged from the foam nozzle;
Control means for controlling the operation of the driving means and the foam adjusting means;
With
The control means is configured so that in the state where the discharge port of the foam nozzle is directed toward the rear of the bowl, the amount of foam is larger than in the state where the discharge port of the foam nozzle is directed toward the front of the bowl. A toilet apparatus that operates the adjusting means or the driving means.   The toilet apparatus according to claim 1, wherein a guide is provided on a bottom surface of the casing so as to collide with foam discharged in a state where the discharge port of the foam nozzle faces the rear of the bowl.   In the state where the discharge port of the foam nozzle faces the rear of the bowl, the control means has a larger flow rate of foam discharged from the discharge port than the state where the discharge port of the foam nozzle faces the front of the bowl and The toilet device according to claim 2, wherein the foam adjusting unit and the driving unit are operated so that a rotation speed becomes slow.

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