JP6918282B2 - Toilet device - Google Patents

Description

The present invention relates to a toilet device including a casing installed behind a bowl of a flush toilet and a foam nozzle provided on the bottom surface of the casing and having a discharge port for discharging bubbles toward the bowl. The present invention relates to a toilet device suitable for suppressing the adhesion of excrement droplets to a bowl.

In the conventional toilet device, water droplets are sprayed in order to suppress the filth adhering to the bowl surface of the flush toilet (see, for example, Patent Document 1).
In such a case, normal stool can be suppressed from adhering to the bowl surface, but on the other hand, it has a sticky property that the ratio of glycoprotein contained is changed and the mucin mass is increased by receiving a drug absorbed from the intestinal tract, for example. In the case of stool with stool, there is a problem that the above-mentioned adhesion to the bowl surface may not be completely suppressed. In addition, stool may be excreted in an explosive manner. Furthermore, it is known that the properties of stool change not only with the above-mentioned drugs but also with eating habits. Therefore, it is necessary to consider the adhesion of filth not only to the person receiving the drug but also to the entire bowl surface.

In addition to the measures described above, in order to prevent stool from adhering to the bowl surface, some bubbles are sprayed on the bowl surface with a surfactant (see, for example, Patent Document 2).
However, in this case as well, the bubbles are sprayed over the entire bowl surface by a rotating nozzle, and while a large amount of waste can be prevented from adhering to the filth, the excrement is transported by limiting the ventilation in the drainage pipe. In particular, there is a problem that the foam may not be sufficiently supplied to the bowl portion where the stool droplets are pressed at a high flow velocity due to the defecation that explodes from the anus at the time of defecation. In addition, the stool droplets excreted on the bowl surface at a high flow velocity may be reflected, and filth may adhere to the nozzle, which may hinder the spraying of bubbles from the nozzle.

Japanese Unexamined Patent Publication No. 2013-155532 Japanese Unexamined Patent Publication No. 2016-104949

The present invention has been made to solve the above problems, and an object of the present invention is to ensure that bubbles are discharged from a nozzle regardless of the type of toilet bowl in which excretion is performed. It is to be.

In the toilet device configured to achieve the above object, a foam nozzle having a casing installed behind the bowl of the flush toilet and a discharge port provided on the bottom surface of the casing to discharge foam toward the bowl. A toilet device comprising the above, the driving means for rotating the discharge port of the foam nozzle in the horizontal direction, and the control means for controlling the operation of the driving means, and the controlling means provides the driving means. A shielding means is provided to shield the discharge port of the foam nozzle from the bowl in the stopped standby state .

Further, the shielding means shields the ejection port of the foam nozzle with the ejection port of the foam nozzle facing the rear of the bowl, and the ejection port of the foam nozzle is exposed when the driving means rotates the foam nozzle. It is a feature.

Therefore, since the discharge port of the foam nozzle is shielded from the bowl by the shielding means with the discharge port facing the rear of the bowl, the stool droplets reflected from the bowl reach the discharge port during defecation, and the discharge port directly during defecation. It is possible to reduce the amount of stool droplets scattered to the discharge port, and it is possible to more reliably prevent the stool droplets from adhering to the discharge port and prevent the discharge failure.

In the present invention, preferably, the shielding means is rotatable together with the foam nozzle, and the driving means rotates the foam nozzle to switch between shielding and exposure of the discharge port of the foam nozzle by the shielding means. ..
Therefore, since the shielding and exposure of the discharge port by the shielding means are switched by the rotation of the foam nozzle, the shielding and exposure of the discharge port are surely switched according to the operation of the driving means of the foam nozzle, and the shielding means is changed. The structure of the toilet device can be simplified without providing a dedicated drive mechanism for driving.

In the present invention, preferably, the control means discharges bubbles from the discharge port of the bubble nozzle in a state where the discharge port of the bubble nozzle is shielded by the shielding means.
Therefore, when the discharge port is shielded by the shielding means, the bubbles discharged from the discharge port are reflected by the shielding means and fill between the discharge port and the shielding means, and the filled bubbles fill the discharge port. Since the cleaning action of the above can be obtained, the stool can be removed even when the stool adheres to the discharge port and becomes dry, and it is possible to more reliably suppress the occurrence of poor discharge.

In the present invention, preferably, there is a distance of 1 mm to 10 mm between the discharge port of the foam nozzle and the shielding means.
Therefore, it is possible to prevent sticking by the surfactant for forming bubbles and to suppress the invasion of explosive stool.

According to the present invention, since the discharge port of the foam nozzle in the standby state is shielded from the bowl by the shielding means, it is possible to prevent the explosive stool during defecation from adhering to the discharge port of the foam nozzle even if it is reflected by the bowl. It is possible to prevent the discharge port from being blocked by stool and causing poor discharge.

It is sectional drawing which shows the foam spraying 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 port of the bubble nozzle in the toilet apparatus of embodiment of this invention. It is a graph which shows the rotation angle of the discharge port of the bubble nozzle, the bubble discharge flow rate q, and the rotation speed ω in FIG. It is a schematic diagram which shows the rotation state of the bubble nozzle in FIG. It is an example of the spraying state in the AA cross section of FIG.

FIG. 1 is a cross-sectional view showing a foam spraying state in the toilet device according to the embodiment of the present invention. FIG. 2 is a system block diagram of the toilet device according to the embodiment of the present invention.
The toilet device 1 is composed of a flush toilet bowl 10 and a casing 100 fixed to the rear portion. A functional unit for foam spraying, which will be described later, is housed in the casing 100, and the toilet seat 200 and the toilet lid 300 are rotatably supported by the shaft. A substantially inverted U-shaped trap 14 composed of an ascending pipe and a descending pipe is connected to the bottom of the bowl 12 of the flush toilet 10, and a drainage socket 15 is connected to the downstream end of the trap 14. It is connected to the drainage pipe 16 of the building via. The trap 14 collects the pooled water 13 inside the bowl 12 to prevent odors, pests, and the like from entering the toilet from the drainage pipe 16 of the building.

The user's stool will fall into the pool 13 from the anus, which is thought to be behind the center line C. It is said that the properties of stool change not only for those who are receiving drugs that are absorbed in the intestinal tract, but also for dietary fiber and lactic acid intake, especially when excreted with explosive momentum. Fecal droplets may adhere to the back of the bowl 12 of 10 with stickiness. In that case, since adhesion may not be suppressed only by the sprayed water droplets, the toilet device 1 according to the embodiment of the present invention discharges bubbles containing a 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 also discharged toward the drain pipe 16 of the building at the time of cleaning the toilet bowl. Since the foam containing the surfactant has a large volume, it may fill the pipeline in the drainage pipe 16. In that case, ventilation cannot be sufficiently performed, and not only the drainage performance of the flush toilet bowl 10 is deteriorated, but also the transport performance of excrement including toilet paper in the drainage pipe 16 is deteriorated. Therefore, in the toilet device 1 according to the embodiment of the present invention, as will be described later, foam discharge is suppressed except for the rear part where excrement splashes are a concern, and filth adhering to the bowl 12 without imposing a burden on the drainage pipe 16. Can be suppressed.

The configuration of the toilet device 1 will be described in more detail with reference to FIG. Although not shown in FIG. 1, a water storage tank 20 for storing wash water for washing the flush toilet is placed behind the casing 100 on the upper surface of the rear portion of the flush toilet 10. .. The flush urinal 10 discharges excrement to the drainage pipe 16 of the building together with the stored water 13 in the bowl 12 by the water supplied from the water storage tank 20. The washing water is discharged from the spout 11 into the bowl 12, flows through the trap 14 and the drain socket 15, and is discharged to the drain pipe 16. A predetermined amount of water is stored in the storage tank 22 through the water supply device 21 that opens and closes the water supplied from the city water in the water storage tank 20. The operation of the user is performed on the operating 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 arranged on the rear upper surface of the flush toilet bowl 10, and bubbles are sprayed into the bowl 12 from a foam nozzle 48 provided so as to project from the bottom surface toward the bowl 12. This operation is controlled by the control means 40, and the 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 by the foam nozzle 48, discharged, 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 scattered over the entire bowl 12 as described later. .. The flow rate of bubbles discharged from the discharge port 49 of the bubble nozzle 48 is. It 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 foam adjusting means, 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 means 40.

FIG. 3 is a plan view showing the rotation angle of the discharge port of the foam nozzle in the toilet device 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 state in which the bubble nozzle 48 rotates clockwise is shown with the rear side of the bowl 12 as 0 ° and the front side as 180 °.

When excreted with explosive force, stool droplets may adhere to the rear portion of the bowl 12 of the flush toilet bowl 10 with adhesiveness. As shown in FIG. 3, the viscous stool fly is likely to adhere in the range of approximately 0 ° to 90 ° and 270 ° to 360 ° in terms of rotation angle. The distance from the foam nozzle 48 to the inner surface of the bowl 12 is the longest in the range of 140 ° to 220 °, but vigorous stool droplets rarely scatter on the inner surface of the bowl 12 in that range, and that part On the other hand, by suppressing the amount of foam containing the surfactant, it is possible to prevent the drainage pipe 16 from being supplied with the risk of poor ventilation.

The detailed operation of the bubble nozzle 48 will be described. FIG. 4 is a graph showing the rotation angle of the discharge port of the bubble nozzle, the bubble discharge flow rate q, and the rotation speed ω in FIG. FIG. 5 is a schematic view showing a rotational state of the bubble nozzle in FIG.
As shown in FIG. 5, an engaging protrusion 50 is formed in the vicinity of the discharge port 49 of the bubble nozzle 48 so as to protrude from the outer circumference. A guide rail (not shown) is formed on the bottom surface of the casing 100 so as to surround the foam nozzle 48, and a cover 51 as a shielding means is provided as a shielding means so as to be movable along the guide rail. It is fitted in. Both ends of the cover 51 are bent toward the bubble nozzle 48 side so as to engage with the engaging protrusion 50. Further, on the bottom surface of the casing 100, a stopper protrusion 52 is formed so that the cover 51 comes into contact with the casing 100 and restricts its movement. Therefore, when the foam nozzle 48 is rotated by the motor 45, the engaging protrusion 50 provided on the foam nozzle 48 engages with the end portion of the cover 51, and the foam nozzle 48 and the cover 51 rotate together. ..

Specifically, the control means 40 controls the motor 45 to rotate the outlet 49 of the bubble 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 move from 360 ° to 0 °. During the clockwise operation of the bubble nozzle 48, the motor 45 is controlled so that the rotation speed ω becomes the low speed ω1 in the range of the rotation angle of 0 ° to 90 ° and 270 ° to 360 °, and discharges. The pump 43 is controlled so that the bubble discharge amount q from the outlet 49 becomes a large flow rate q2. On the other hand, when the rotation angle of the bubble nozzle 48 is in the range of 90 ° to 270 °, the motor 45 is controlled so that the rotation speed ω is high speed ω2, and the bubble discharge amount q from the discharge port 49 is low flow rate q1. The pump 43 is controlled so as to be later.
Further, when the foam nozzle 48 operates counterclockwise, the motor 45 is controlled so that the rotation speed ω becomes high speed ω2, and the pump 43 is stopped so that the foam discharge amount q from the discharge port 49 becomes zero. Let me. In the counterclockwise operation, the motor 45 is controlled so as to temporarily reduce the rotation speed ω before the rotation is stopped, so that the impact when the cover 51 collides with the stopper protrusion 52 at the time of stopping is impacted. Is made smaller.

By controlling the rotation speed ω of the bubble nozzle 48 and the discharge bubble flow rate q in this way, the total amount of bubbles discharged toward the rear of the bubble nozzle 48 is discharged toward the front of the bubble nozzle 48. It can be greater than the total amount of foam produced. Therefore, a large amount of bubbles can be discharged to the rear of the bowl 12 to which the stool droplets are strongly adhered, and the stool adhesion to the rear of the bowl 12 can be suppressed. Further, in the front of the bowl 12 where the adhesive force of stool is weaker than the rear, by reducing the amount of foam to be discharged as compared with the rear of the bowl 12, the bowl 12 as a whole is not an excessive amount but an appropriate amount of foam. It is also possible to prevent the drainage pipe 16 from being adversely affected by the discharge of the water.

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

The foam nozzle 48 is stopped so that the discharge port 49 faces the rear end of the flush toilet bowl 10 in the standby state in which the foam is not sprayed to the bowl 12. That is, the rotation angle of the bubble nozzle 48 in the standby state is 0 °, and this state is the drive start position of the bubble nozzle 48 (see FIG. 5A). At this rotation start position, the engaging protrusion 50 is in contact with the inside of the right end of the cover 51, the discharge port 49 is shielded by the cover 51, and the outside of the right end of the cover 51 is in contact with the stopper protrusion 52.

When the bubble nozzle 48 starts to rotate by driving the motor 45 from this initial position and the bubble discharge is started from the discharge port 49, the discharge port 49 covers the discharge port 49 until the bubble nozzle 48 rotates by about 10 °. Since the state of being shielded by the 51 is maintained, the bubbles discharged from the discharge port 49 are reflected to the discharge port 49 by the cover 51, and the discharge port 49 is self-cleaned by the reflected bubbles. ..

After that, when the bubble nozzle 48 rotates so that the discharge port 49 is exposed from the cover 51, the bubbles discharged from the discharge port 49 are scattered toward the bowl 12. Further, when the engaging protrusion 50 abuts and engages with the inside of the left end of the cover 51, the cover 51 also starts rotating together with the bubble nozzle 48.

After that, as the foam nozzle 48 rotates as shown in FIGS. 5 (b) to 5 (d), the foam discharged from the discharge port 49 is sprayed on the surface of the bowl 12. Then, as shown in FIG. 5 (e), when the outside of the left end of the cover 51 rotates to a position where it abuts on the stopper protrusion 52, the drive of the motor 45 is counterclockwise so that the rotation of the bubble nozzle in the clockwise direction is stopped. Switch around. In this state, since the foam nozzle 48 is rotated by approximately 360 °, the discharge port 49 faces the substantially rear end of the flush toilet bowl 10, and is behind the bowl 12 which was shielded by the cover 51 at the initial stage of driving start. Bubbles can also be sprayed toward the edges.

After that, the bubble nozzle 48 is rotated counterclockwise as shown in FIG. 5 (f), returns to the drive start initial position shown in FIG. 5 (a), and is in a standby state. Since the discharge port 49 is shielded by the cover 51 when rotating counterclockwise, bubbles from the discharge port 49 are generated during this counterclockwise rotation as shown in FIG. The pump 43 is stopped so as not to discharge.

In this way, when the foam nozzle 48 is in the standby state, the discharge port 49 of the foam nozzle 48 is covered by the cover 51, and the discharge port 49 can be shielded from the bowl 12, so that the explosive stool at the time of defecation is a bowl. Even if it is reflected by 12, it can be prevented from adhering to the discharge port 49 of the bubble nozzle 48, and it is possible to prevent the discharge port 49 from being blocked by stool and causing a discharge failure.

Further, the cover 51 shields the discharge port 49 in a state where the discharge port 49 of the bubble nozzle 48 faces the rear end of the bowl 12, and when the bubble nozzle 48 rotates, the discharge port 49 is exposed, so that the foam nozzle 48 Since the discharge port 49 is shielded from the bowl 12 by the cover 51 with the discharge port 49 facing the rear end of the bowl 12, stool droplets reflected from the bowl 12 reach the discharge port 49 during defecation and directly discharge during defecation. It is possible to reduce the amount of stool droplets scattered to the outlet 49, and it is possible to more reliably prevent the stool droplets from adhering to the discharge port 49 and prevent the discharge failure.

Further, since the cover 51 rotates together with the foam nozzle 48 to switch between shielding and exposure of the discharge port 49, the shielding and exposure of the discharge port 49 are surely performed according to the operation of the motor 45 that drives the foam nozzle 48. The structure of the toilet device 1 can be simplified without switching and providing a dedicated drive mechanism for driving the cover 51.

Further, by discharging the bubbles from the discharge port 49 while the discharge port 49 of the bubble nozzle 48 is shielded by the cover 51, the bubbles reflected by the cover 51 fill the space between the discharge port 49 and the cover 51. Therefore, since the cleaning action of the discharge port 49 is obtained by the filled foam, the stool can be removed even if the stool adheres to the discharge port 49 and becomes dry, and the discharge failure is more reliably performed. It can be suppressed.

FIG. 6 is an example of a sprayed state in the AA cross section of FIG. In FIG. 6, the bubble nozzle 48 is located in the standby state. The foam nozzle 48 arranged on the bottom surface of the casing 100 so as to face the bowl 12 has a cover 51 as a shielding means of the bowl 12 in a standby state before spraying bubbles from the foam nozzle 48 toward the bowl 12. It covers the discharge port 49 facing rearward. The cover 51 is curved in the vertical direction following the surface shape of the foam nozzle, and is formed so as to cover the entire vertical direction of the foam nozzle. Therefore, around the discharge port 49, a wide gap L is formed between the bubble nozzle 48 and the cover 51, and the discharge port 49 can be shielded from the bowl 12.

Then, with the discharge port 49 covered with the cover 51, bubbles are discharged from the discharge port 49, and self-cleaning is performed to fill the space between the cover 51 and the bubble nozzle 48 with bubbles, and the reliability as a mechanical structure is performed. However, since the surfactant contained in the foam may have adhesiveness, the gap between the discharge port 49 and the cover 51 is provided with a gap L of 1 mm to 10 mm. Therefore, it is possible to both prevent the sticking by the surfactant for forming bubbles and prevent the invasion of explosive stool.

The embodiments of the present invention have been described above. However, the present invention is not limited to these descriptions. With respect to the above-described embodiment, those skilled in the art with appropriate design changes are also included in the scope of the present invention as long as they have the features of the present invention.
For example, the cover 51 does not have to be movable together with the bubble nozzle 48, and a dedicated drive mechanism for moving the cover 51 may be provided.

1 ... Toilet device 10 ... Washing toilet bowl 11 ... Water spout 12 ... Bowl 13 ... Reservoir 14 ... Trap 15 ... Drainage socket 16 ... Drainage pipe 20 ... Water storage tank 21 ... Water supply device 22 ... Storage tank 23 ... Drain valve 24 ... Operation Device 40 ... Control means 41 ... Operation unit 42 ... Tank 43 ... Pump (foam adjusting means)
45 ... Motor (driving means)
48 ... Foam nozzle 49 ... Discharge port 50 ... Engagement protrusion 51 ... Cover (shielding means)
52 ... Stopper protrusion 100 ... Casing 200 ... Toilet seat 300 ... Toilet lid

Claims (4)

A toilet device including a casing installed behind a bowl of a flush toilet and a foam nozzle provided on the bottom surface of the casing and having a discharge port for discharging foam toward the bowl.
A driving means for rotating the discharge port of the foam nozzle in the horizontal direction,
A control means for controlling the operation of the drive means and
With
A shielding means for shielding the discharge port of the foam nozzle from the bowl is provided in a standby state in which the control means stops the driving means .
The shielding means has the foam nozzle in a state where the discharge port of the foam nozzle faces the rear of the bowl.
When the driving means rotates the foam nozzle, the foam nozzle is shielded.
A toilet device characterized in that the discharge port is exposed. The claim is characterized in that the shielding means is rotatable together with the foam nozzle, and the driving means rotates the foam nozzle to switch between shielding and exposure of the discharge port of the foam nozzle by the shielding means. Item 1. The toilet device according to item 1. The toilet device according to claim 1 or 2, wherein the control means discharges bubbles from the discharge port of the foam nozzle in a state where the discharge port of the foam nozzle is shielded by the shielding means. .. The toilet device according to claim 3 , wherein a distance of 1 mm to 10 mm is provided between the discharge port of the foam nozzle and the shielding means.

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