JP2022039681A - Toilet device - Google Patents

Abstract

To provide a toilet device capable of improving workability of maintenance operation of a water level sensor that detects toilet bowl clogging.SOLUTION: A toilet device comprises: a toilet bowl including a rim conduit in which cleaning water to be discharged toward a bowl part flows and an opening part disposed in the rim conduit and opening upward; a casing for housing a function part therein and including a cover part that covers an upper part of the opening part; a water level sensor positioned inside the opening part and detecting the cleaning water that flows in the rim conduit; a determination control section for determining clogging of the toilet bowl based on a detection result of the water level sensor; and a moving mechanism for moving at least the cover part to expose the opening part.SELECTED DRAWING: Figure 4

Description

Aspects of the invention generally relate to toilet appliances.

There is known a toilet device in which a water level sensor for detecting a rise in the water level of the bowl portion is provided in the rim headrace of the toilet bowl. In such a toilet device, the clogging of the toilet bowl is detected by the water level sensor, and the washing water is suppressed from overflowing from the bowl portion (Patent Document 1).

Japanese Unexamined Patent Publication No. 2017-145658

Dirt or mold may adhere to the water level sensor due to the effects of urine, dirt, humidity, detergent, etc. in the bowl. In particular, when the water level sensor is provided at a position where the washing water does not flow in the rim headrace located above the toilet bowl as in Patent Document 1, the washing water cannot wash away the dirt and mold adhering to the water level sensor. .. Further, when the water level sensor becomes dirty, it is difficult to clean the water level sensor. Then, due to the dirt on the water level sensor, the rise in the water level cannot be detected normally, and there is a possibility that the overflow of the washing water from the toilet bowl cannot be suppressed.

The present invention has been made based on the recognition of such a problem, and an object of the present invention is to provide a toilet device capable of improving the workability of maintenance work of a water level sensor for detecting clogging of a toilet bowl.

In the present invention, a toilet bowl having a rim headrace through which washing water discharged toward the bowl portion flows, an opening provided in the rim headrace and an opening upward, and a functional portion are housed therein. The toilet bowl is based on a casing having a covering portion that covers the upper part of the opening, a water level sensor that is located inside the opening and detects washing water flowing through the rim headrace, and a detection result of the water level sensor. The toilet device is provided with a determination control unit for determining clogging and a moving mechanism for moving at least the covering portion in order to expose the opening portion.

According to the aspect of the present invention, there is provided a toilet device capable of improving the workability of maintenance work of a water level sensor for detecting clogging of a toilet bowl.

It is a perspective view which shows the toilet apparatus by embodiment of this invention. It is a block diagram which shows the flow control of the washing water which flows from a water supply source to a bowl part. It is a side view which looked at the toilet device from the side. It is a side view which shows the case where the casing in FIG. 3 is moved upward. It is a top view of the toilet bowl with the toilet seat, the toilet lid, and the casing removed. It is the same plan view as FIG. 5 which shows the toilet apparatus by the modification of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, similar components are designated by the same reference numerals and detailed description thereof will be omitted as appropriate.
FIG. 1 is a perspective view showing a toilet device according to an embodiment of the present invention.
FIG. 2 is a block diagram showing the flow control of the washing water flowing from the water supply source toward the bowl portion.
FIG. 3 is a side view of the toilet device as viewed from the side.
FIG. 4 is a side view showing a case where the casing in FIG. 3 is moved upward.
FIG. 5 is a plan view of the toilet bowl with the toilet seat, the toilet lid, and the casing removed, as viewed from above.

As shown in FIGS. 1 and 2, the toilet device 1 according to the embodiment has a toilet bowl 10 having a bowl portion 12, a casing 50 installed above the toilet bowl 10, and a wash flowing through the rim headrace 20 of the toilet bowl 10. It includes a water level sensor 60 that detects water, and a determination control unit 44 that determines clogging of the toilet bowl 10 based on the detection result of the water level sensor 60.
In the present specification, each of "upper", "lower", "front", "rear", "left side", and "right side" is from the user seated on the toilet seat 2 located above the toilet bowl 10. The direction you see.

The toilet bowl 10 is a so-called sitting toilet bowl, and has a concave bowl portion 12 for receiving excrement such as urine and stool, and a rim portion 14 provided above the bowl portion 12. The rim portion 14 is an annular portion forming the upper edge portion of the toilet bowl 10. The rim portion 14 includes a toilet seat mounting portion 15 located on the front side on which the toilet seat 2 is mounted, and a casing mounting portion 16 on the rear side of the toilet seat mounting portion 15 on which the casing 50 is mounted. have. The toilet bowl 10 has a rim headrace 20 through which the washing water discharged toward the bowl portion 12 flows, and an opening 26 provided in the rim headrace 20 and opened upward.

The rim headrace 20 extends in the front-rear direction inside the rim portion 14. Specifically, as shown in FIGS. 3 to 5, the rim headrace 20 extends forward from the rear end 14a of the rim portion 14. The rim headrace 20 has a first rim headrace 22 and a second rim headrace 24.

The first rim headrace 22 extends from the rear end 14a of the rim portion 14 toward the front end of the rim portion 14, and the front end side serves as a discharge port 22a for discharging the washing water to the bowl portion 12. The first rim headrace 22 is a portion through which washing water for washing the bowl portion 12 flows.

On the other hand, the second rim headrace 24 extends forward from the rear end 14a of the rim portion 14 at a position different from that of the first rim headrace 22, and the front end side is connected to the first rim headrace 22. It has become. That is, the second rim headrace 24 is a bypass flow path that bypasses the first rim headrace 22. The second rim headrace 24 is provided with a water level sensor 60, which will be described later. The water level sensor 60 detects the washing water flowing back from the first rim headrace 22 toward the second rim headrace 24 when the toilet bowl 10 is clogged.

The opening 26 is provided in the second rim headrace 24. As shown in FIGS. 3 to 5, the opening 26 extends from the upper surface 16a of the casing mounting portion 16 of the rim portion 14 toward the second rim headrace 24. That is, the opening 26 is a vertical hole in which the upper end 26a opens upward. The opening 26 is covered above by a casing 50. A water level sensor 60, which will be described later, is inserted into the opening 26.

The rim headrace 20 is connected to a water supply pipe 30 extending from a water supply source 100 such as a water supply or a water storage tank to the rear end 14a of the rim portion 14. The water supply line 30 is provided with a wash water supply unit 32 for flowing wash water from the water supply source 100 to the water supply line 30, and a switching valve 34 provided on the downstream side of the wash water supply unit 32. .. The water supply line 30 includes a first line 30a extending from the water supply source 100 to the switching valve 34, a second line 30b extending from the switching valve 34 to the first rim headrace 22, and a second rim headrace from the switching valve 34. It has a third pipeline 30c extending between 24.

The wash water supply unit 32 is provided in the first pipe line 30a. The wash water supply unit 32 has an on-off valve that is opened and closed by, for example, a solenoid or a motor. Further, the washing water supply unit 32 may have, for example, a flush valve. The wash water supply unit 32 is electrically connected to the open / close control unit 40, and opening / closing is controlled by a command signal from the open / close control unit 40. In addition to this, the washing water supply unit 32 may appropriately have a tank for storing water, a pump for pumping water, and the like.

The switching valve 34 is provided in the water supply pipe line 30 on the downstream side of the washing water supply unit 32. In the water supply line 30, the first line 30a is branched into the second line 30b and the third line 30c by the switching valve 34. The second pipeline 30b is connected to the first rim headrace 22. On the other hand, the third pipeline 30c is connected to the second rim headrace 24. The switching valve 34 may be connected to the first rim headrace 22 and the second rim headrace 24 without having the second pipe line 30b and the third pipe line 30c.

The switching valve 34 is switched between the open state and the closed state of the second pipeline 30b and the third pipeline 30c by, for example, a solenoid or a motor. That is, the switching valve 34 circulates the washing water flowing through the first pipe line 30a to either the second pipe line 30b or the third pipe line 30c. The switching valve 34 is normally in a valve open state on the second pipeline 30b side and in a valve closed state on the third pipeline 30c side.

The switching valve 34 is electrically connected to the switching control unit 42, and the opening and closing of the second pipeline 30b side and the third pipeline 30c side is controlled by the command signal from the switching control unit 42. The switching control unit 42 is electrically connected to the operation unit 102 via, for example, the open / close control unit 40. The switching valve 34 may be integrated with the washing water supply unit 32. That is, the washing water supply unit 32 may have a switching valve capable of switching between an open state and a closed state on the second pipeline 30b side and an open state and a closed state on the third pipeline 30c side. ..

The open / close control unit 40 is electrically connected to the wash water supply unit 32 and controls the wash water flowing through the water supply pipe line 30. The open / close control unit 40 is housed inside, for example, the casing 50. When the user performs a cleaning operation for cleaning the toilet bowl 10 by an operation unit 102 such as a remote controller, a cleaning signal is transmitted from the operation unit 102 to the open / close control unit 40.

Upon receiving the cleaning signal, the open / close control unit 40 transmits a command signal (for example, an open signal) corresponding to the cleaning signal to the cleaning water supply unit 32. The wash water supply unit 32 is switched from the closed state to the open state based on the command signal (open signal) transmitted from the open / close control unit 40. As a result, wash water is supplied from the water supply source 100 to the toilet bowl 10 via the water supply pipe line 30 and the rim headrace 20.

The switching control unit 42 is electrically connected to the switching valve 34 and controls whether the washing water flowing through the first pipe line 30a is guided to the second line line 30b or the third line line 30c. The switching control unit 42 is housed inside, for example, the casing 50. The switching control unit 42 has a toilet bowl cleaning mode in which the cleaning water is discharged from the first rim headrace 22 toward the bowl portion 12, and a sensor that cleans the water level sensor 60 by circulating the cleaning water in the second rim headrace 24. It has a cleaning mode.

The switching control unit 42 is normally in the toilet bowl cleaning mode, and in the toilet bowl cleaning mode, the second pipeline 30b side is in the open state and the third pipeline 30c side is in the closed state. The switching control unit 42 is switched to the sensor cleaning mode by, for example, the operation of the operation unit 102 or a preset predetermined cycle (every predetermined time).

When the switching valve 34 receives the command signal of the sensor cleaning mode from the switching control unit 42, the switching valve 34 switches the second pipeline 30b side to the closed state and the third pipeline 30c side to the open state. In the sensor cleaning mode, at least the third pipeline 30c side may be in the open state, and for example, both the second pipeline 30b side and the third pipeline 30c side may be in the open state. The switching control unit 42 may be integrated with the open / close control unit 40.

The determination control unit 44 is connected to the water level sensor 60. The determination control unit 44 is housed inside, for example, the casing 50. The determination control unit 44 determines the clogging of the toilet bowl 10 based on the detection result of the water level sensor 60. Specifically, when the determination control unit 44 receives the detection signal for detecting water (washing water) from the water level sensor 60 in the toilet bowl cleaning mode, the toilet bowl 10 is clogged. Is determined.

The determination control unit 44 transmits the result of the clogging determination of the toilet bowl 10 to the open / close control unit 40. When the open / close control unit 40 receives the clogging signal in which the clogging has occurred from the determination control unit 44, even if the cleaning signal for cleaning the toilet bowl 10 is received from the operation unit 102, the opening signal is sent to the cleaning water supply unit 32. Do not send. As a result, when the toilet bowl 10 is clogged, the washing water is not supplied from the water supply source 100, so that it is possible to prevent the washing water from overflowing from the toilet bowl 10. The determination control unit 44 may be integrated with the open / close control unit 40 and the switching control unit 42.

The casing 50 is located on the rear side of the toilet bowl 10 and is provided on the toilet bowl 10. As shown in FIGS. 1, 3 to 5, the front portion of the casing 50 is mounted on the casing mounting portion 16 of the rim portion 14. The casing 50 contains functional parts such as a local cleaning unit, a deodorizing unit, an opening / closing unit for a toilet seat and a toilet lid, and a heating unit (none of which is shown). Further, as shown in FIG. 1, the casing 50 rotatably supports the toilet seat 2 and the toilet lid 3.

The casing 50 has a covering portion 51 that covers above the opening 26. In this embodiment, the covering portion 51 is integrated with other parts of the casing 50. That is, the covering portion 51 is a portion of the casing 50 that corresponds to the opening 26 and is located above the casing mounting portion 16 of the rim portion 14. The bottom surface portion 51a of the covering portion 51 covers the upper part of the opening portion 26.

The water level sensor 60 is located inside the opening 26 and detects the washing water flowing through the rim headrace 20. That is, the water level sensor 60 detects the washing water flowing through the second rim headrace 24. The water level sensor 60 may, for example, electrically detect the washing water, or may detect the flow velocity, the flow rate, the pressure, and the like of the washing water flowing through the second rim headrace 24. Further, the water level sensor 60 may detect the washing water by ultrasonic waves, or may detect the washing water by the buoyancy of the float (float). That is, the water level sensor 60 may be any sensor as long as it can detect the washing water flowing through the second rim headrace 24.

The water level sensor 60 is attached to, for example, the bottom surface portion 51a of the covering portion 51, and projects from the bottom surface portion 51a toward the inside of the opening portion 26. Therefore, since the water level sensor 60 is concealed by the toilet bowl 10 and the casing 50, the appearance can be improved.

As shown in FIG. 2, the water level sensor 60 is connected to the determination control unit 44 and transmits a detection signal to the determination control unit 44. A sealing material 65 is provided around the water level sensor 60. The sealing material 65 is formed larger than the opening 26. The sealing material 65 is located in the circumferential direction of the upper end 26a of the opening 26, and is sandwiched between the bottom surface portion 51a of the covering portion 51 and the upper surface portion 16a of the casing mounting portion 16 so that the upper end portion of the opening 26 is formed. Suppresses the overflow of wash water from 26a.

The moving mechanism 70 is provided between the toilet bowl 10 and the casing 50. The moving mechanism 70 moves at least the covering portion 51 of the casing 50 relative to the toilet bowl 10. In the present embodiment, since the covering portion 51 is integrated with the casing 50, the moving mechanism 70 moves the casing 50. The moving mechanism 70 exposes the opening 26 by moving the casing 50.

The moving mechanism 70 can electrically or mechanically move the casing 50 by using, for example, a motor or a spring. As an example, by operating an operation unit such as a switch provided on the casing 50, the motor can be driven to move the casing 50 from the toilet bowl 10. Further, by operating the operation unit provided on the casing 50, the casing 50 can be moved from the toilet bowl 10 by utilizing the urging force of the spring. Further, the moving mechanism 70 is not limited to the case of automatically moving, and may be, for example, a casing 50 that can be lifted by hand and locked at the lifted position. That is, the moving mechanism 70 may be any mechanism as long as the covering portion 51 of the casing 50 can be moved from the toilet bowl 10.

As shown in FIG. 4, the moving mechanism 70 moves the casing 50 (covered portion 51) up and down with respect to the toilet bowl 10, for example. As a result, when the casing 50 is moved upward from the toilet bowl 10, a space S is formed between the casing mounting portion 16 (opening portion 26) and the covering portion 51.

Since the water level sensor 60 is attached to the covering portion 51, when the casing 50 is moved up and down, the water level sensor 60 also moves up and down together with the casing 50. The moving mechanism 70 moves the casing 50 in the vertical direction without moving it in the horizontal direction.

Therefore, the water level sensor 60 also moves only in the vertical direction without moving in the horizontal direction. As a result, the water level sensor 60 can be raised and lowered without contacting the inner surface of the opening 26 with the water level sensor 60, so that damage or failure of the water level sensor 60 can be suppressed.

Further, the moving mechanism 70 moves at least a part of the water level sensor 60 above the upper end 26a of the opening 26 when the casing 50 is raised. In this case, it is preferable that the detection portion of the water level sensor 60 for detecting the washing water is located above the upper end 26a of the opening 26. More preferably, the moving mechanism 70 moves the lower end of the water level sensor 60 above the upper end 26a of the opening 26. In other words, it is preferable to move the casing 50 so that the entire water level sensor 60 is located above the upper end 26a of the opening 26. As a result, since the water level sensor 60 is located in the space S, maintenance work such as cleaning of the water level sensor 60 can be easily performed.

The toilet device 1 according to the present embodiment has the above-described configuration, and the operation of the toilet device 1 will be described next.

The toilet device 1 is provided with a water level sensor 60 that detects clogging of the toilet bowl 10. The water level sensor 60 is provided in the rim headrace 20 through which the wash water flows.

The switching control unit 42 of the toilet device 1 is normally in the toilet bowl cleaning mode. In the toilet bowl cleaning mode, the switching valve 34 is in the open state on the second pipe line 30b side and in the closed state on the third pipe line 30c side.

In this state, when the user operates the toilet bowl cleaning of the operation unit 102, the open / close control unit 40 changes the cleaning water supply unit 32 from the closed state to the open state. As a result, the toilet bowl is washed by discharging the washing water from the water supply source 100 to the bowl portion 12 through the first pipe line 30a, the second pipe line 30b, and the first rim headrace 22.

Here, if the toilet bowl 10 is clogged, the washing water discharged to the bowl portion 12 does not flow into the sewage, so that the washing water accumulates in the bowl portion 12. When the wash water collects up to the rim portion 14, the discharge port 22a of the first rim headrace 22 is blocked by the wash water, so that the wash water in the first rim headrace 22 flows from the connection portion 24a to the second rim headrace 24. Flow into.

When the water level sensor 60 detects the washing water that has flowed into the second rim headrace 24, the determination control unit 44 determines that the toilet bowl 10 is “clogging”. When the determination control unit 44 determines that the determination control unit 44 is "clogging", the open / close control unit 40 prohibits the switching of the wash water supply unit 32 to the open state. That is, even if the open / close control unit 40 receives a command signal for cleaning the toilet bowl from the operation unit 102, the open / close control unit 40 maintains the closed state without switching the wash water supply unit 32 to the open state. As a result, since the washing water is no longer supplied from the water supply source 100, it is possible to prevent the washing water from overflowing from the bowl portion 12.

When the water level sensor 60 stops detecting the washing water, the determination control unit 44 determines that the toilet bowl 10 is “not clogged”. When the determination control unit 44 determines that there is no clogging, the open / close control unit 40 cancels the prohibition of switching the wash water supply unit 32 to the open state. As a result, the toilet bowl 10 can be washed.

By the way, if the water level sensor 60 is dirty or the like, there is a possibility that the washing water in the second rim headrace 24 cannot be properly detected. Then, when the toilet bowl 10 is clogged, there is a risk that the washing water will overflow from the bowl portion 12.

Therefore, the toilet device 1 of the present embodiment can easily perform maintenance work such as checking the degree of dirt on the water level sensor 60 and cleaning the water level sensor 60. The toilet device 1 has two types of cleaning modes: a case where the water level sensor 60 is wiped off and cleaned, and a case where the water level sensor 60 is cleaned using cleaning water.

The casing mounting portion 16 of the rim portion 14 is formed with an opening 26 extending from the upper surface 16a toward the second rim headrace 24 of the rim headrace 20. The water level sensor 60 is attached to the covering portion 51 of the casing 50 at a position corresponding to the opening portion 26, and protrudes from the bottom surface portion 51a of the covering portion 51 toward the inside of the opening portion 26.

As a result, the water level sensor 60 is normally hidden by the toilet bowl 10 and the casing 50, so that it cannot be visually recognized from the outside. Therefore, the appearance of the toilet device 1 can be improved. The casing 50 has a moving mechanism 70 for exposing the opening 26.

As shown in FIG. 4, when checking the degree of dirtiness of the water level sensor 60 or cleaning the water level sensor 60, for example, by operating an operation unit (not shown) provided in the casing 50, the water level sensor 60 is operated. The casing 50 is moved upward. As a result, a space S is formed between the toilet bowl 10 and the casing 50, and the opening 26 can be exposed.

In this case, since the water level sensor 60 is attached to the casing 50, it moves upward together with the casing 50. As a result, the water level sensor 60 can be visually observed from the space S, so that the degree of dirt on the water level sensor 60 can be confirmed and the dirt can be wiped off. Further, since the casing 50 moves in the vertical direction without moving in the horizontal direction, it is possible to prevent the water level sensor 60 from coming into contact with the inner surface of the opening 26 when moving inside the opening 26. As a result, damage or failure of the water level sensor 60 can be suppressed.

Next, the switching control unit 42 of the toilet device 1 has a sensor cleaning mode for cleaning the water level sensor 60 with cleaning water. The sensor cleaning mode can be switched from the toilet bowl cleaning mode by operating, for example, an operating unit 102 or an operating unit (not shown) provided on the casing 50. When the toilet bowl cleaning mode is switched to the sensor cleaning mode, the switching control unit 42 switches the third pipeline 30c side of the switching valve 34 from the closed state to the open state, and switches the second pipeline 30b side from the open state to the closed state. .. Further, the open / close control unit 40 switches the wash water supply unit 32 from the closed state to the open state.

As a result, the washing water can be circulated from the water supply source 100 to the second rim headrace 24 via the first pipe 30a and the third pipe 30b to wash away the dirt of the water level sensor 60. In the sensor cleaning mode, the determination control unit 44 does not perform a clogging determination. Therefore, in the sensor cleaning mode, it is possible to prevent the determination control unit 44 from erroneously determining that the toilet bowl 10 is clogged.

It should be noted that it may be determined whether or not the water level sensor 60 has detected the washing water in the sensor washing mode. Thereby, the failure of the water level sensor 60 can be detected. That is, if the water level sensor 60 does not detect the washing water in the sensor washing mode, it means that the water level sensor 60 has a problem. In this case, for example, the operation unit 102 or the casing 50 may be notified that the water level sensor 60 has a problem.

Then, when a predetermined time (for example, several tens of seconds) has elapsed from the execution of the sensor cleaning mode, the toilet bowl cleaning mode is returned, and the open / close control unit 40 switches the cleaning water supply unit 32 from the open state to the closed state. Further, the switching control unit 42 switches the second pipeline 30b side to the open state and the third pipeline 30c side to the closed state. The sensor cleaning mode may be terminated by an operation unit 102, an operation unit provided on the casing 50, or the like.

FIG. 6 is a plan view similar to FIG. 5 showing a toilet device according to a modified example of the present invention.
In the above-described embodiment, the case where the rim headrace 20 has a first rim headrace 22 for cleaning the toilet bowl 10 and a second rim headrace 24 provided with the water level sensor 60 has been described as an example. However, the present invention is not limited to this, and even if the toilet device 80 has an opening 82 into which the water level sensor 60 is inserted in one rim headrace 81, for example, as in the modification shown in FIG. good.

When the water level sensor 60 detects the washing water, for example, when a predetermined time (for example, a dozen seconds) has elapsed from the opening state to the closed state of the washing water supply unit 42, the determination control unit 44 Can determine that the toilet bowl 10 is clogged. When cleaning the toilet bowl 10, the water level sensor 60 can also be cleaned, so that it is not necessary to provide the switching valve 34 and the switching control unit 42 described above. Therefore, the toilet device 80 can reduce the number of parts and reduce the control load.

In the above-described embodiment, the case where the moving mechanism 70 moves the entire casing 50 in which the covering portion 51 is integrated to expose the opening 26 has been described as an example. However, the present invention is not limited to this, and for example, the moving mechanism may move only the covering portion that is separate from the casing to expose the opening portion.

Further, in the above-described embodiment, the moving mechanism 70 has been described by taking as an example a case where the casing 50 (covering portion 51) is moved up and down in the vertical direction to expose the opening portion 26. However, the present invention is not limited to this, and for example, the moving mechanism may move the casing (covering portion) in the horizontal direction to expose the opening. Further, the moving mechanism may move the casing (covered portion) diagonally upward to expose the opening.

Further, in the above-described embodiment, the case where the water level sensor 60 is attached to the bottom surface portion 51a of the covering portion 51 has been described as an example. However, the present invention is not limited to this, and for example, the water level sensor may be attached to the opening. Even in such a case, the water level sensor in the opening can be removed from the space S to clean the water level sensor.

As the toilet device based on the embodiment described above, for example, the one described below can be considered.

The toilet device according to the first aspect has a toilet bowl having a rim headrace through which washing water discharged toward the bowl portion flows, an opening provided in the rim headrace and an opening upward, and a functional portion inside. A casing having a covering portion that covers the upper part of the opening, a water level sensor that is located inside the opening and detects washing water flowing through the rim headrace, and detection results of the water level sensor. Based on this, a determination control unit for determining clogging of the toilet bowl and a moving mechanism for moving at least the covering portion in order to expose the opening portion are provided.

According to the first aspect, since the water level sensor is provided inside the opening of the rim headrace and the opening is covered with the covering portion, the water level sensor can be concealed and the appearance is improved. can do. Further, since the covering portion can be moved by the moving mechanism to expose the opening portion, the water level sensor can be easily maintained.

A second aspect is characterized in that, in the first aspect, the moving mechanism raises and lowers the covering portion with respect to the toilet bowl.

According to the second aspect, the moving mechanism raises and lowers the covering portion to form a space between the toilet bowl and the covering portion, and maintenance of the water level sensor can be performed from the space. Further, since the moving mechanism raises and lowers the covering portion, the opening can be exposed even if the wall surface of the toilet room is close to the toilet device, for example.

In a third aspect, in the second aspect, the water level sensor projects from the bottom surface portion of the covering portion toward the inside of the opening portion, and the moving mechanism moves the water level sensor up and down together with the covering portion. Let me.

According to the third aspect, since the water level sensor moves up and down together with the covering portion, the water level sensor can be easily maintained from the space between the toilet bowl and the covering portion.

A fourth aspect is, in the third aspect, the moving mechanism moves the water level sensor only in the vertical direction without moving it in the horizontal direction.

According to the fourth aspect, since the water level sensor can be raised and lowered without touching the inner surface of the opening, damage or failure of the water level sensor can be suppressed.

Fifth aspect, in the third or fourth aspect, the moving mechanism moves at least a part of the water level sensor above the upper end of the opening.

According to the fifth aspect, since the water level sensor is located above the upper end of the opening, the water level sensor can be easily maintained in the space between the toilet bowl and the covering portion.

A sixth aspect is, in any one of the first to fifth aspects, the rim headrace has a first rim headrace and a second rim headrace, and the opening is the first. A toilet cleaning mode provided in the two rim headraces for discharging wash water from the first rim headrace toward the bowl portion, and a water level sensor is washed by circulating the wash water through the second rim headrace. It has a sensor cleaning mode and a switching control unit that executes.

According to the sixth aspect, in the toilet bowl washing mode, the toilet bowl can be washed without the washing water coming into contact with the water level sensor, so that false detection by the water level sensor can be suppressed. On the other hand, in the sensor cleaning mode, the water level sensor can be easily cleaned without raising and lowering the covering portion.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. With respect to the above-described embodiments, 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 shape, size, material, arrangement, installation form, and the like of each element included in the toilet device 1 and the like are not limited to those exemplified, and can be appropriately changed. Further, the elements included in each of the above-described embodiments can be combined as long as technically possible, and the combination thereof is also included in the scope of the present invention as long as the features of the present invention are included.

1 Toilet device 2 Toilet seat 3 Toilet lid 10 Toilet bowl 12 Bowl part 14 Rim part 14a Rear end 15 Toilet seat mounting part 16 Casing mounting part 16a Top surface 20 Rim headrace 22 1st rim headrace 22a Outlet 24 2nd rim headrace 24a Connection part 26 Opening part 26a Upper end 30 Water supply line 30a 1st line 30b 2nd line 30c 3rd line 32 Washing water supply part 34 Switching valve 40 Open / close control part 42 Switching control part 44 Judgment control part 50 Casing 51 Cover 51a Bottom 60 Water level sensor 65 Sealing material 70 Movement mechanism 80 Toilet device 81 Rim headrace 82 Opening 100 Water supply source 102 Operation unit S Space

Claims (6)

A toilet bowl having a rim headrace through which washing water discharged toward the bowl portion flows, and an opening provided in the rim headrace and opening upward.
A casing in which the functional portion is housed and has a covering portion that covers the upper part of the opening.
A water level sensor located inside the opening and detecting the washing water flowing through the rim headrace,
A determination control unit that determines clogging of the toilet bowl based on the detection result of the water level sensor, and
A toilet device comprising, at least, a moving mechanism for moving the covering to expose the opening. The toilet device according to claim 1, wherein the moving mechanism raises and lowers the covering portion with respect to the toilet bowl. The water level sensor projects from the bottom surface portion of the covering portion toward the inside of the opening portion.
The toilet device according to claim 2, wherein the moving mechanism raises and lowers the water level sensor together with the covering portion. The toilet device according to claim 3, wherein the moving mechanism moves the water level sensor only in the vertical direction without moving the water level sensor in the horizontal direction. The toilet device according to claim 3 or 4, wherein the moving mechanism moves at least a part of the water level sensor above the upper end of the opening. The rim headrace has a first rim headrace and a second rim headrace.
The opening is provided in the second rim headrace.
A toilet bowl cleaning mode in which the cleaning water is discharged from the first rim headrace toward the bowl portion and a sensor cleaning mode in which the cleaning water is circulated through the second rim headrace to clean the water level sensor are executed. The toilet device according to any one of claims 1 to 5, further comprising a switching control unit.

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