JP2022077823A - Toilet bowl device - Google Patents

Abstract

To provide a technique that can increase a drainage flow rate during washing of a toilet bowl.SOLUTION: A toilet bowl device comprises: a toilet bowl body 14 that has a toilet bowl part; a drainage line 16 that is connected to a bottom part of the toilet bowl part and stores seal water Wa inside itself; and a water level setting mechanism 18 that can variably set an allowable water level that is a maximum water level of the seal water Wa that can be stored in the drainage line 16 while the seal water Wa is stored in a drainage line 16.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to a toilet bowl device.

Patent Document 1 describes a toilet bowl body having a toilet bowl portion, a drainage pipe connected to the bottom of the toilet bowl portion, a pipeline opening / closing means for opening / closing a part of the drainage pipeline, and blowing air into the drainage pipeline. Disclose a toilet device equipped with a ventilation means. In this toilet device, in order to prevent the adhesion of filth in the toilet bowl part, the water level of the accumulated water in the toilet bowl part is driven by driving the ventilation means with the drainage pipe line partially closed by the pipe line opening / closing means. Is rising.

Japanese Unexamined Patent Publication No. 2018-159202

As a result of studying the disclosed technique of Patent Document 1, the inventor of the present application has obtained the following new recognition. Although the disclosed technique of Patent Document 1 focuses on the water level of the accumulated water in the toilet bowl portion, it does not consider the water level of the sealed water stored in the drainage pipeline. In relation to the water level of this sealed water, there is room for improvement in the technique disclosed in Patent Document 1 in adjusting the flow rate of water discharged through the drainage pipeline (hereinafter referred to as drainage flow rate) when cleaning the toilet bowl. rice field.

One of the objects of the present disclosure is to provide a technique capable of adjusting the drainage flow rate at the time of cleaning the toilet bowl.

The toilet device of the present disclosure includes a toilet body having a toilet bowl portion, a drainage pipeline connected to the bottom of the toilet bowl portion and storing sealed water inside itself, and the water sealing in the drainage pipeline. It is provided with a water level setting mechanism capable of changing the permissible water level, which is the maximum water level of the sealed water that can be stored in the drainage pipeline while being stored.

The other toilet device of the present disclosure includes a toilet body having a toilet bowl portion, a drainage pipeline connected to the bottom of the toilet bowl portion and storing sealed water inside itself, and a drainage pipeline on the downstream side of the drainage pipeline portion. A jet discharge unit provided below the top of the drainage pipe, and a water level setting mechanism that can change the permissible water level, which is the maximum water level of the sealed water that can be stored in the drainage pipe. , Equipped with.

It is a side sectional view about the toilet bowl apparatus of 1st Embodiment. It is another side sectional view about the toilet bowl apparatus of 1st Embodiment. It is an enlarged view of FIG. It is an enlarged view of FIG. It is a perspective view of the valve member of FIG. It is sectional drawing which shows a part of the VI-VI cross section of FIG. It is a block diagram about the toilet bowl apparatus of 1st Embodiment. It is another block diagram about the toilet bowl apparatus of 1st Embodiment. It is a flow chart which shows the operation related to the toilet bowl cleaning of 1st Embodiment. It is a 1st operation diagram which concerns on the toilet bowl cleaning of 1st Embodiment. It is a 2nd operation diagram which concerns on the toilet bowl cleaning of 1st Embodiment. It is a 3rd operation diagram which concerns on the toilet bowl cleaning of 1st Embodiment. It is a 4th operation diagram which concerns on the toilet bowl cleaning of 1st Embodiment. It is a 5th operation diagram which concerns on the toilet bowl cleaning of 1st Embodiment. It is a side sectional view about the toilet bowl apparatus of 2nd Embodiment. It is another side sectional view about the toilet bowl apparatus of 2nd Embodiment. It is a block diagram about the toilet bowl apparatus of 3rd Embodiment. It is a flow chart which shows the operation related to the toilet bowl cleaning of 3rd Embodiment. It is an operation diagram which concerns on the toilet bowl cleaning of 3rd Embodiment. It is a block diagram about the toilet bowl apparatus of 4th Embodiment. It is a flow chart which shows the operation related to the toilet bowl cleaning of 4th Embodiment. It is a side sectional view about the toilet bowl apparatus of 5th Embodiment. It is a side sectional view about the toilet device of a modified form.

Hereinafter, embodiments will be described. The same components are designated by the same reference numerals, and duplicate description will be omitted. In each drawing, for convenience of explanation, components are omitted, enlarged, or reduced as appropriate. The drawings shall be viewed in the orientation of the reference numerals. Unless otherwise specified, the terms "attachment" and "connection" as used herein include not only the case where the two parties directly satisfy the conditions mentioned, but also the case where the conditions are satisfied via other members.

Hereinafter, the positional relationship of each component will be described using three directions orthogonal to each other. This direction is the front-back direction X, the left-right direction (not shown), and the up-down direction Z. The front-back direction X and the left-right direction are horizontal directions, and correspond to the front-back and left-right directions of a seated person sitting on the toilet seat 11 mounted on the toilet body 14 in a normal posture. The vertical direction Z is the vertical direction.

(First Embodiment) Refer to FIGS. 1 and 2. FIG. 1 shows a state in which the valve member 44, which will be described later, is in the open position Pa1, and FIG. 2 shows a state in which the valve member 44 is in the closed position Pa2. The toilet device 10 mainly includes a toilet body 14 having a toilet bowl portion 12 for receiving filth, a drainage pipe line 16 connected to the toilet bowl portion 12, and a sealed water Wa stored in the drainage pipe line 16. It is provided with a water level setting mechanism 18 capable of setting an allowable water level (described later).

The toilet bowl body 14 of the present embodiment is made of pottery. The material of the toilet bowl body 14 is not particularly limited, and may be, for example, resin, metal, or the like. The toilet body 14 is a Western-style toilet. The toilet bowl main body 14 of the present embodiment is a wash-off type that flushes out filth by using the head generated by the rise in the water level of the accumulated water Wb in the toilet bowl portion 12. The toilet body 14 includes a rim portion 20 that constitutes an upper end side portion of the toilet bowl portion 12. The inner peripheral surface of the rim portion 20 constitutes a part of the range downward from the upper end opening 12a of the toilet bowl portion 12.

The toilet device 10 includes discharge units 22A and 22B that discharge water inside the toilet body 14. The discharge portions 22A and 22B include a rim discharge portion 22A provided on the rim portion 20 and a jet discharge portion 22B that discharges water toward the downstream side of the drainage pipe line 16.

The rim discharge portion 22A of the present embodiment is a rim discharge hole provided as a part of the toilet bowl main body 14 and opened on the inner peripheral surface of the rim portion 20. In addition to this, the rim discharge portion 22A may be a nozzle or the like separate from the toilet bowl main body 14. The rim discharge unit 22A discharges water supplied through the water supply device 72 (described later). The rim discharge portion 22A forms a washing water stream for cleaning the inside of the toilet bowl portion 12 by discharging water into the toilet bowl portion 12.

The jet discharge unit 22B of the present embodiment is a jet discharge hole provided as a part of the toilet bowl main body 14 and opened on the inner wall surface of the drainage pipe line 16. In addition to this, the jet discharge unit 22B may be a nozzle or the like separate from the toilet bowl main body 14. The jet discharge portion 22B is provided below the lowest position (described later) of the water channel top 42 of the drainage pipe line 16. The jet discharge unit 22B discharges water supplied through the water supply device 72 (described later). The jet discharge unit 22B forms a jet water flow that promotes the discharge of filth by discharging water toward the downstream side of the drainage pipe line 16.

The drainage pipe 16 is connected to the drainage pipe 24 installed in the building. The drainage pipe 24 of the present embodiment is a floor drainage specification installed on the floor F of the toilet room. The entrance 16a of the drainage pipe 16 opens at the bottom of the toilet bowl portion 12. The drainage pipe line 16 includes a toilet bowl drainage channel 26 provided in the toilet bowl main body 14 as a part of the toilet bowl main body 14. The drainage pipe 16 of the present embodiment further includes a drainage socket 28 that connects the toilet bowl drainage channel 26 and the drainage pipe 24, and a connection pipe 30 that connects the toilet bowl drainage channel 26 and the drainage socket 28. The toilet bowl drainage channel 26 of the present embodiment is composed of pottery in the entire range from the downstream end portion of the toilet bowl drainage channel 26 toward the upstream side.

The drainage pipe 16 includes an internal waterway 32 that is formed inside the drainage pipe 16 and serves as a passage for filth and the like. The internal water channel 32 includes an ascending water channel 34 that rises toward the downstream side and a descending water channel 36 that is provided on the downstream side of the ascending water channel 34 and descends toward the downstream side. In addition to this, the internal water channel 32 of the present embodiment includes a straight water channel 38 connecting the ascending water channel 34 and the descending water channel 36. In the present embodiment, the ascending water channel 34 is provided in the toilet bowl drainage channel 26, and the descending water channel 36 is provided in the drainage socket 28. The straight water channel 38 of the present embodiment extends linearly backward toward the downstream side, and is provided at the downstream end of the toilet drainage channel 26 and inside the connecting pipe 30.

The drainage pipe line 16 is provided in the toilet bowl drainage channel 26, and includes a sealed water storage unit 40 capable of storing the sealed water Wa inside itself. The sealed water storage unit 40 is provided from the inlet 16a of the drainage pipe 16 toward the inner side of the drainage pipe 16 in the range including the rising water channel 34. The sealed water Wa blocks the flow of gas in the flow direction in the drainage pipe 16. A part of the sealed water Wa is stored in the toilet bowl portion 12 as the stored water Wb.

See FIGS. 3 and 4. The internal channel 32 includes a channel top 42 provided between the ascending channel 34 and the descending channel 36. The waterway top 42 at least constitutes the upper end edge of the inner and lower surfaces of the rising waterway 34. The water channel top portion 42 of the present embodiment is composed of the inner and lower surfaces of the straight water channel 38 in addition to the rising water channel 34. The water channel top portion 42 of the present embodiment includes a toilet bowl portion 42a configured by a toilet bowl drainage channel 26, and a valve portion 42b provided on the downstream side of the toilet bowl portion 42a and composed of a valve member 44 described later. The water channel top 42 is a place to be crossed when the allowable water level of the sealing water is at the lower limit water level WL1 (described later) and the water in the rising water channel 34 flows into the descending water channel 36. When water exceeding the minimum position of the waterway top 42 enters the drainage pipe 16, the water overflows from the waterway top 42 to the downstream side, so that the allowable water level of the sealing water Wa becomes the lower limit water level WL1 (described later). Set.

The water level setting mechanism 18 can variably set the allowable water level, which is the maximum water level of the sealed water Wa that can be stored in the drainage pipe 16. The "allowable water level" here means the maximum water level of the sealed water Wa that can be stored in the drainage pipe 16 in the range including the sealed water storage unit 40 when the sealed water Wa is in a stationary state. The "water level of the sealed water Wa" here means the height position of the water surface Wc of the sealed water Wa in the drainage pipe line 16, and the height position of the water surface Wd of the pooled water Wb in the toilet bowl portion 12 is taken into consideration. No (see also FIGS. 1 and 2). The height position here means a position in the vertical direction Z.

See FIGS. 3-5. The water level setting mechanism 18 of the present embodiment includes a valve member 44 capable of adjusting the opening degree of the internal water channel 32 of the drainage pipe line 16. The valve member 44 can adjust the opening degree of the straight water channel 38 at a position different from that of the rising water channel 34, specifically, on the downstream side of the rising water channel 34. It can be said that the valve member 44 can adjust the opening degree of the portion of the internal water channel 32 where the water channel top portion 42 is located. The valve member 44 is arranged in the internal waterway 32 on the downstream side of the toilet bowl portion 42a of the waterway top portion 42.

The valve member 44 of the present embodiment is a bag body including a variable volume chamber 46. The valve member 44 of the present embodiment is a bag body having a double cylinder structure including an outer cylinder portion 48 and an inner cylinder portion 50. The variable volume chamber 46 is formed between the outer cylinder portion 48 and the inner cylinder portion 50. The outer cylinder portion 48 forms an annular opening 52 for moving a pressure transmission medium in and out of the variable volume chamber 46, and a pair of attachment portions 54 that form a peripheral edge of the annular opening 52 and are attached to the drainage pipe line 16. And a bellows portion 56 that can be expanded and contracted as the volume of the variable volume chamber 46 increases or decreases.

The valve member 44 includes valve body portions 58A and 58B capable of closing at least a part of the internal water channel 32. The valve body portions 58A and 58B of the present embodiment include a first valve body portion 58A (hereinafter referred to as a lower valve body portion 58A) provided on the lower side and a second valve body portion 58B (hereinafter referred to as an upper side) provided on the upper side. It includes a valve body portion 58B). The lower valve body portion 58A is composed of the lower portion of the inner cylinder portion 50, and the upper valve body portion 58B is composed of the upper portion of the inner cylinder portion 50.

The valve member 44 can adjust the opening degree of the internal water channel 32 by changing the volume of the variable volume chamber 46. Specifically, the valve member 44 increases the opening degree of the internal water channel 32 by the contraction of the variable volume chamber 46 (see FIG. 3). The valve member 44 reduces the opening degree of the internal water channel 32 by expanding the variable volume chamber 46 (see FIG. 4). Hereinafter, regarding the position of the valve member 44, the position where the opening degree of the internal water channel 32 is maximized is referred to as an open position Pa1 within the range adjustable by the valve member 44, and the position where the opening degree of the internal water channel 32 is minimized is closed. It is called position Pa2. When the valve member 44 is in the open position Pa1, the flow rate of the fluid (for example, water or the like) that can flow through the internal water channel 32 is maximized. When the valve member 44 is in the closed position Pa2, the flow rate of the fluid that can flow through the internal water channel 32 is minimized.

The valve member 44 includes an annular end face portion 44a provided at the downstream end portion of the valve member 44. The annular end face portion 44a includes a recess 44b that is recessed toward the upstream side in a side view when the valve member 44 is in the open position Pa1. The downstream end of the lower valve body portion 58A forms a portion of the recess 44b above the bottom 44c of the recess 44b. The downstream end of the upper valve body portion 58B forms a portion of the recess 44b below the bottom 44c of the recess 44b.

The valve member 44 of the present embodiment forms a part of the internal water channel 32 inside the valve member 44. This condition is satisfied at least when the valve member 44 is in the open position Pa1, and in the present embodiment, it is also satisfied when the valve member 44 is in the closed position Pa2. The valve member 44 of the present embodiment forms at least a part of the inner and lower surfaces of the internal water channel 32 by the lower valve body portion 58A in the cross section orthogonal to the center line CL1. This is satisfied at least when the valve member 44 is in the open position Pa1, and in the present embodiment, it is also satisfied when the valve member 44 is in the closed position Pa2. In addition to this, the valve member 44 of the present embodiment forms at least a part of the inner upper surface of the inner water channel 32 by the upper valve body portion 58 in the cross section orthogonal to the center line CL1. Here, the "inner lower surface" refers to, for example, the surface below the center line CL1 in the inner water channel 32, and the "inner upper surface" refers to the surface above the center line CL1 in the inner water channel 32. The valve member 44 of the present embodiment forms a straight water channel 38 as a part of the internal water channel 32.

The valve member 44 of the present embodiment forms an internal water channel 32 on the upstream side of the bottom portion 44c of the recess 44b in a range extending over the entire circumference around the center line CL1. This condition is satisfied in the range of the center line direction Dd from the bottom portion 44c of the recess 44b to the upstream end portion of the valve member 44 in the present embodiment. Here, the center line direction Dd means a direction along the center line CL1 of the internal water channel 32. This condition is satisfied regardless of the opening degree of the internal water channel 32 adjusted by the valve member 44.

See FIGS. 3, 4, and 6. The water level setting mechanism 18 can variably set the allowable water level of the sealing water by adjusting the opening degree of the internal water channel 32 by the valve member 44. Specifically, the lower valve body portion 58A is provided so as to extend along the center line CL1 of the internal water channel 32 when it is in the open position Pa1, and is a part of the inner peripheral surface around the center line CL1 of the internal water channel 32. (See Fig. 3). At this time, the lower valve body portion 58A cannot block the sealing water in the drainage pipe line 16, and constitutes the waterway top portion 42. At this time, the upper valve body portion 58B is also provided so as to extend along the center line CL1 of the internal water channel 32, and becomes a part of the inner peripheral surface around the center line CL1 of the internal water channel 32. At this time, the permissible water level of the sealed water Wa set by the water level setting mechanism 18 is the lower limit water level WL1 at a height position aligned with the lowest position 42c of the water channel top portion 42. The lowest position 42c (see FIG. 6) here means the lowest position at the top portion 42 of the water channel in a cross section orthogonal to the center line CL1 of the internal water channel 32. When the lower limit water level is WL1, the valve member 44 cannot block the sealing water Wa. When it is at the lower limit water level WL1, it can be said that the portion forming the internal water channel 32 of the valve member 44 has a shape that does not form a step portion that protrudes upward in the internal water channel 32 on the way to the downstream side.

The lower valve body portion 58A protrudes upward from the inner and lower surfaces of the internal water channel 32 when it is in the closed position Pa2, and is provided so as to continuously increase toward the downstream side (see FIG. 4). At this time, the lower valve body portion 58A can block the sealing water in the drainage pipe line 16. At this time, the upper valve body portion 58B protrudes downward from the inner upper surface of the inner water channel 32, and is provided so as to be continuously lowered toward the downstream side. At this time, the allowable water level of the sealing water set by the water level setting mechanism 18 is the upper limit water level WL2 at a height position aligned with the lowest position 58b of the upper end edge portion 58a of the lower valve body portion 58A. It can be said that the water level setting mechanism 18 can set the allowable water level above the lowest position 42c of the waterway top 42.

In this way, the water level setting mechanism 18 can change the allowable water level of the sealed water Wa within the water level range from the lower limit water level WL1 to the upper limit water level WL2. The water level setting mechanism 18 of the present embodiment can set an allowable water level stepwise in this water level range, specifically, in two steps of a lower limit water level WL1 and an upper limit water level WL2. In addition to this, the water level setting mechanism 18 may be able to set the allowable water level in three or more stages in this water level range, or may be able to continuously set the allowable water level in this water level range. The water level setting mechanism 18 of the present embodiment can change the allowable water level without moving the toilet drainage channel 26.

The water level setting mechanism 18 can variably set the storage capacity of the sealed water Wa in the drainage pipe 16 by changing the allowable water level of the sealed water Wa. Here, the "storage capacity of the sealed water Wa" is the maximum amount of the sealed water Wa that can be stored in the drainage pipe 16 in the range including the sealed water storage unit 40 when the sealed water Wa is in a stationary state. say. When the allowable water level of the sealing water Wa is set to the lower limit water level WL1, the storage capacity of the sealing water Wa becomes small. When the allowable water level of the sealed water Wa is set to the upper limit water level WL2, the storage capacity of the sealed water Wa becomes large.

The water level setting mechanism 18 of the present embodiment can change the allowable water level of the sealed water Wa while the sealed water Wa is stored in the drainage pipe line 16. For example, the allowable water level of the sealed water level can be raised from the lower limit water level WL1 to the upper limit water level WL2 by the water level setting mechanism 18 while the sealed water level is stored in the drainage pipe line 16. The same applies to the process of lowering the allowable water level of the sealed water Wa from the upper limit water level WL2 to the lower limit water level WL1. The drainage pipe line 16 does not have to be blocked by the sealed water Wa in order to satisfy the condition of "the state in which the sealed water Wa is stored". For example, when the allowable water level of the sealing water Wa is at the lower limit water level WL1, the drainage pipe line 16 does not have to be blocked by the sealing water Wa.

The water level setting mechanism 18 of the present embodiment can change the permissible water level of the sealed water Wa within the water level range from the lower limit water level WL1 to the upper limit water level WL2 while the drainage pipe line 16 is blocked by the sealed water Wa. Yes (see also FIGS. 1 and 2). It means that the gas flow in the drainage pipe line 16 can be blocked by the sealing water Wa regardless of the allowable water level of the sealing water set by the water level setting mechanism 18. The permissible water level of the sealed water Wa set by the water level setting mechanism 18 is provided above the deepest portion 40a on the inner upper surface of the sealed water storage unit 40 regardless of the water level range.

The lower valve body portion 58A of the valve member 44 moves so as to rise in the process of moving from the open position Pa1 to the closed position Pa2, and moves so as to descend in the process of moving from the closed position Pa2 to the open position Pa1. The valve member 44 moves from the open position Pa1 to the closed position Pa2 by at least partially ascending, and moves from the closed position Pa2 to the open position Pa1 by at least partially descending. From another point of view, the water level setting mechanism 18 raises the permissible water level by raising at least a part of the valve member 44, and lowers the permissible water level by lowering at least a part of the valve member 44.

Refer to FIGS. 1 and 2. The toilet device 10 includes a pipe space 60 provided in the drainage pipe 16 on the downstream side of the sealing Wa that shuts off the drainage pipe 16. The pipe space 60 is provided in a range from the water surface Wc of the sealed water Wa to the downstream end of the drainage pipe 16. The in-pipe space 60 communicates with a relief space 64 provided separately from the atmospheric space 63 around the toilet bowl device 10. The atmospheric space 63 here means a space filled with the atmosphere. The relief space 64 is used to release the air in the pipe inner space 60 when raising the actual water level of the sealed water Wa while the drainage pipe line 16 is blocked. The relief space 64 of the present embodiment is composed of the internal space of the drain pipe 24. By providing the relief space 64 separately from the air space 63, it is possible to avoid a situation in which the odor in the drain pipe 24 leaks into the air space 63 when the actual water level of the sealed water Wa is raised.

The in-pipe space 60 includes an upstream space 62 provided on the upstream side of the valve member 44 at the closed position Pa2, a downstream space 64 provided on the downstream side of the valve member 44 at the closed position Pa2, and an upstream space. It has an air bleeding path 66 that communicates the 62 with the downstream space 64.

The upstream space 62 is provided in the drainage pipe line 16 in a range from the water surface Wc of the sealed water Wa to the valve member 44 at the closed position Pa2. The downstream space 64 is provided in the range from the valve member 44 at the closed position Pa2 in the drainage pipe 16 to the downstream end portion of the drainage pipe 16. It can also be considered that the upstream side space 62 is provided on the upstream side of the opening degree adjusting portion by the valve member 44 in the drainage pipe line 16, and the downstream side space 64 is provided on the downstream side of the opening degree adjusting portion. .. The downstream space 64 communicates with the above-mentioned relief space 64.

The air bleeding path 66 of the present embodiment is formed between the lower valve body portion 58A and the upper valve body portion 58B of the valve member 44 (see also FIG. 6). The air bleeding path 66 is used to bleed the air in the upstream space 62 to the downstream space 64 when raising the actual water level of the sealing water Wa while the valve member 44 is arranged at the closed position Pa2.

The effects of the above ingenuity will be explained.

(A) The water level setting mechanism 18 can change the allowable water level of the sealed water Wa. As a result, the actual water level of the sealed water Wa can be raised by raising the allowable water level of the sealed water Wa and then performing the water addition operation (described later) by the water level setting mechanism 18 (see FIG. 10B). As a result, the volume of air remaining in the pipe space 60 (hereinafter referred to as “residual air”) can be reduced as compared with the case where the actual water level of the sealed water Wa remains low. As the volume of the residual air in the pipe space 60 decreases, the resistance of the residual air to the water trying to pass through the drainage pipe 16 can be reduced. Therefore, it is possible to easily increase the drainage flow rate at the time of cleaning the toilet bowl as compared with the case where the allowable water level of the sealing water Wa remains low. As a result, it is possible to easily adjust the drainage flow rate when cleaning the toilet bowl.

The water level setting mechanism 18 can change the permissible water level of the sealed water Wa while the sealed water Wa is stored in the drainage pipe 16. Therefore, compared to the case where the permissible water level is changed without storing the sealed water Wa in the drainage pipe 16, when the permissible water level of the sealed water Wa is raised and then the actual water level of the sealed water Wa is raised by the water addition operation. In addition, the amount of water to be added to the toilet body 14 can be reduced.

(B) The water level setting mechanism 18 can change the allowable water level of the sealed water level within the water level range from the lower limit water level WL1 to the upper limit water level WL2 while the drainage pipe line 16 is blocked by the sealed water level Wa. .. Therefore, even if the water level setting mechanism 18 becomes inoperable due to the biting of a foreign substance or the like, the backflow of odor can be stably prevented by the sealing water Wa. In particular, when the water level setting mechanism 18 operates in conjunction with the electric unit 100 (described later) that requires an external power supply, the water level setting mechanism 18 becomes inoperable due to a power failure of the external power supply. In this case as well, there is an advantage that the effect described here can be obtained.

(C) By providing the relief space 64, the actual water level of the sealing water Wa can be easily raised while suppressing the resistance of the air remaining in the pipe space 60.

(D) By forming the air bleeding path 66, the actual water level of the sealing water Wa can be easily raised while suppressing the resistance of the air remaining in the downstream space 64.

Other features of the toilet bowl device 10 will be described. See FIG. The drainage pipe line 16 includes a pipe line constituent member 68 made of a pipe body constituting the drainage pipe line 16. The pipeline component 68 of the present embodiment is a connection pipe 30. The toilet bowl drainage channel 26 includes a tubular connected portion 26a provided at the downstream end of the toilet bowl drainage channel 26. The upstream end of the pipeline component 68 is connected to the toilet drainage channel 26 with the connected portion 26a of the toilet drainage channel 26 inserted inward. The upstream end of the pipeline component 68 is watertightly connected to the connected portion 26a of the toilet drainage channel 26 via the first seal member 70. The first seal member 70 is an annular elastic body, and is arranged between the upstream end portion of the pipeline constituent member 68 and the connected portion 26a of the toilet drainage channel 26.

The pipeline component 68 is detachably connected to the connected portion 26a of the toilet drainage channel 26. The pipeline component 68 and the toilet drainage channel 26 are detachable from each other by relatively moving in the axial direction of the connected portion 26a of the toilet bowl drainage channel 26. The connected portion 36a of the present embodiment extends backward. As a result, by moving the toilet bowl main body 14 relative to the toilet bowl constituent member 68 in the front-rear direction X, the toilet bowl constituent member 68 can be attached to and detached from the toilet bowl drainage channel 26.

(E) The water level setting mechanism 18 is arranged inside the pipeline constituent member 68 and attached to the pipeline constituent member 68. In the present embodiment, the water level setting mechanism 18 is attached to the pipeline constituent member 68 by attaching the pair of attachment portions 54 of the valve member 44 to the pipeline constituent member 68. As a result, by connecting the new pipeline component 68 to the existing toilet drainage channel 26, the water level setting mechanism 18 can be retrofitted into the existing toilet device 10.

7 and 8 are referenced. FIG. 7 shows a state in which the valve member 44 is in the open position Pa1 and FIG. 8 shows a state in which the valve member 44 is in the closed position Pa2. The toilet device 10 includes a water supply device 72 capable of supplying water to the toilet body 14, and a drive source 74 capable of driving the water level setting mechanism 18.

The water supply device 72 includes water supply passages 76A and 76B that serve as passages for water supplied from the water source 75 to the discharge portions 22A and 22B, on-off valves 78A and 78B that can open and close the water supply passages 76A and 76B, and on-off valves 78A and 78B. It is provided with a control unit 80 capable of controlling the above.

The water source is, for example, a water supply, a tank with a pump, or the like. The water supply channels 76A and 76B of the present embodiment include a first water supply channel 76A for supplying water to the rim discharge unit 22A and a second water supply channel 76B for supplying water to the jet discharge unit 22B.

The on-off valves 78A and 78B of the present embodiment include a first on-off valve 78A capable of opening and closing the first water supply channel 76A and a second on-off valve 78B capable of opening and closing the second water supply channel 76B. The on-off valves 78A and 78B of the present embodiment are solenoid valves, that is, electric drive valves. The on-off valves 78A and 78B may be electric valves as another example of the electric drive valve. In addition to this, a three-way valve commonly used for the first water supply channel 76A and the second water supply channel 76B may be used. In this case, the first on-off valve 78A also serves as the second on-off valve 78B.

When the on-off valves 78A and 78B are in the open state, water is supplied to the discharge portions 22A and 22B through the water supply channels 76A and 76B corresponding to the on-off valves 78A and 78B. As a result, water is discharged from the discharge portions 22A and 22B, so that water is supplied to the toilet bowl main body 14. When the on-off valves 78A and 78B are in the closed state, the water supply to the toilet body 14 by the water supply channels 76A and 76B corresponding to the on-off valves 78A and 78B is stopped. As a result, the discharge of water from the discharge portions 22A and 22B is stopped, so that the water supply to the toilet bowl main body 14 is stopped.

The control unit 80 is, for example, a computer that combines hardware such as a CPU, ROM, and RAM with software. The control unit 80 is installed, for example, in the casing 82 (see FIG. 1) mounted on the rear portion of the toilet bowl main body 14.

The water supply device 72 can perform toilet bowl cleaning by supplying water to the toilet bowl main body 14. Toilet bowl cleaning is performed when a predetermined cleaning start condition is met. The cleaning start condition here is, for example, to acquire a cleaning start command by the control unit 80. The cleaning start command is input to the control unit 80 through an operation on an operating device such as a remote controller or a smartphone. Another cleaning start condition is that, for example, a cleaning start operation is performed on an operating member such as a lever.

When the toilet bowl cleaning is executed, the water supply device 72 of the present embodiment can sequentially execute the rim cleaning that supplies water only to the rim discharge unit 22A and the jet cleaning that supplies water to at least the jet discharge unit 22B. In addition to this, the water supply device 72 can execute a water reservoir operation of supplying water to be sealed to the toilet bowl main body 14 after jet cleaning.

The rim cleaning is performed by keeping the first on-off valve 78A in the open state for a predetermined time t1. By cleaning the rim, a washing water flow is formed in the toilet bowl portion 12 by the water discharged from the rim discharge portion 22A. When cleaning the rim, the second on-off valve 78B is maintained in the closed state, and water is not discharged from the jet discharge portion 22B. By cleaning the rim, the filth in the toilet bowl portion 12 can be washed off.

Jet cleaning is performed by keeping the second on-off valve 78B in the open state for a predetermined time t2. By jet cleaning, a jet water flow is formed in the drainage pipe 16 by the water discharged from the jet discharge portion 22B. When performing jet cleaning, cleaning water may or may not be discharged from the rim discharge portion 22A. By performing jet cleaning, the filth washed off by rim cleaning can be discharged through the drainage pipe line 16. By the above rim cleaning and jet cleaning, it is possible to efficiently perform toilet bowl cleaning with a small amount of cleaning water.

By jet cleaning, most of the sealed water Wa in the sealed water storage portion 40 of the drainage pipe 16 is discharged, and the actual water level thereof is greatly lowered. The water reservoir operation is performed to raise the actual water level of the sealed water Wa lowered by the jet washing. The water reservoir operation is executed by maintaining the first on-off valve 78A in the valve open state for a predetermined time t3. The water discharged from the rim discharge unit 22A by the water storage operation is stored in the sealed water storage unit 40 of the drainage pipe line 16 as a part of the sealing water Wa.

As described above, when water is supplied to the toilet bowl body 14 by washing the toilet bowl, the inside of the toilet bowl portion 12 of the toilet bowl body 14 is washed by the washing water stream. When the filth in the toilet bowl portion 12 is supplied with water to the toilet bowl main body 14 by washing the toilet bowl, it is discharged through the drainage pipe line 16.

The drive source 74 is a pressure accumulator 86 that is connected to the second water supply channel 76B via the branch path 84 and can store water passing through the second water supply channel 76B. The accumulator 86 is arranged at a position overlapping the connecting pipe 30 in the vertical direction Z and below the connecting pipe 30 in a side view (see FIG. 1). The accumulator 86 is fixed to the toilet body 14 using bolts or the like. The branch passage 84 branches from the second water supply passage 76B on the upstream side of the second on-off valve 78B, and a check valve 88 is installed on the upstream side of the branch passage 84 in the second water supply passage 76B. ..

The accumulator 86 includes a long tank 90 and a partition member 92 that is movably arranged in the tank 90 in the longitudinal direction of the tank 90. The partition member 92 is, for example, an elastic film such as a diaphragm. The partition member 92 partitions the inside of the tank 90 into a main chamber 94 and a sub chamber 96 by separating the internal space of the tank 90 in the longitudinal direction. The main room 94 is communicated with the second water supply channel 76B and is filled with water flowing in from the second water supply channel 76B. The sub-chamber 96 is communicated with the variable volume chamber 46 of the valve member 44 via a piping member 97 (see also FIG. 1) such as a hose, and is filled with a pressure transmission medium. The pressure transfer medium is a fluid. The pressure transmission medium is, for example, a gas such as air, or a liquid such as water or oil.

The accumulator 86 includes a first urging member 98 capable of urging the partition member 92 in the direction Da1 for reducing the volume of the main chamber 94. The first urging member 98 is an elastic member such as a coil spring.

See FIG. When the second on-off valve 78B is switched to the closed state, water is introduced into the main chamber 94 from the second water supply channel 76B. The partition member 92 moves in the direction Da2 to increase the volume of the main chamber 94 against the urging force of the first urging member 98 due to the hydrostatic pressure of the water introduced into the main chamber 94. As a result, the accumulator 86 stores water in a state of being pressurized by the hydrostatic pressure of the water in the second water supply channel 76B.

The partition member 92 moves in the direction Da2 to reduce the volume of the sub chamber 96 due to the hydrostatic pressure of the water in the main chamber 94 in the process of the water introduction operation of introducing water from the second water supply channel 76B. As a result, the partition member 92 pressurizes the pressure transmission medium in the variable volume chamber 46 together with the pressure transmission medium in the sub chamber 96, and expands the variable volume chamber 46. As a result, the valve member 44 is moved from the open position Pa1 to the closed position Pa2, and the water level setting mechanism 18 is driven so as to raise the allowable water level from the lower limit water level WL1 to the upper limit water level WL2 in the direction Dc1. The drive source 74 (here, the accumulator 86) executes a raising drive for driving the water level setting mechanism 18 so as to raise the allowable water level in conjunction with the water introduction operation.

See FIG. 7. When the second on-off valve 78B is switched to the valve open state, the partition member 92 moves in the direction Da1 to reduce the volume of the main chamber 94 by the urging force of the first urging member 98. The accumulator 86 discharges the pressurized water from the main chamber 94 to the second water supply channel 76B by the movement of the partition member 92. As a result, the pressurized water in the accumulator 86 joins the water in the second water supply channel 76B, and high pressure water can be supplied to the toilet bowl main body 14 through the second water supply channel 76B.

The partition member 92 moves in the direction Da1 to increase the volume of the sub chamber 96 by the urging force of the first urging member 98 in the process of the water discharge operation of discharging the pressurized water to the second water supply channel 76B. .. As a result, the partition member 92 decompresses the pressure transmission medium in the variable volume chamber 46 together with the pressure transmission medium in the sub chamber 96, and contracts the variable volume chamber 46. As a result, the valve member 44 is moved from the closed position Pa2 to the open position Pa1, and the water level setting mechanism 18 is driven so as to lower the allowable water level from the upper limit water level WL2 to the lower limit water level WL1 in the direction Dc2. The drive source 74 (here, the accumulator 86) executes a bulk lowering drive for driving the water level setting mechanism 18 so as to lower the allowable water level in conjunction with the water discharge operation.

Next, with reference to FIG. 9, an example of the operation related to the toilet bowl cleaning in the toilet bowl device 10 of the present embodiment will be described. See also FIG. 10A. In the drainage pipe line 16, the sealed water Wa of the actual water level of the lower limit water level WL1 or less is stored by the previous toilet bowl cleaning. The water level setting mechanism 18 sets an allowable water level in the standby water level WL3 higher than the lower limit water level WL1 prior to cleaning the toilet bowl (S10). The standby water level WL3 of this embodiment is the upper limit water level WL2. This condition is satisfied, for example, by performing a raised drive by the drive source 74 after the previous toilet bowl cleaning.

When the cleaning start condition is satisfied, the control unit 80 of the water supply device 72 starts cleaning the toilet bowl. When the toilet bowl cleaning is started, the water supply device 72 executes rim cleaning (S12) → jet cleaning (S14) → water reservoir operation (S16) in this order.

See also FIG. 10B. The water supply device 72 executes a rim wash that discharges water We from the rim discharge portion 22A (S12), and adds water to the toilet bowl body 14 to raise the actual water level of the sealed water Wa in the direction Dc1. It is possible. By executing the water addition operation, the actual water level of the sealed water Wa can be raised to at least the standby water level WL3. The water supply device 72 executes the water addition operation after the raising drive by the drive source 74 executed prior to the toilet bowl cleaning and before the raising drive described below. At this time, in the wash-off type toilet body 14, the actual water level of the pooled water Wb in the toilet bowl portion 12 can also be raised from the actual water level of the lower limit water level WL1 or less to at least the standby water level WL3.

See also FIG. 10C. When the water supply device 72 executes jet cleaning for discharging water We from the jet discharge unit 22B (S14), the accumulator 86 executes a water discharge operation during the jet cleaning. As described above, the accumulator 86 executes a raising drive that drives the water level setting mechanism 18 so as to lower the allowable water level to the lower limit water level WL1 in the direction Dc2 in conjunction with the water discharge operation. The drive source 74 will perform a bulking drive during jet cleaning, that is, during toilet bowl cleaning. The term "during cleaning of the toilet bowl" as used herein means, in particular, when a water flow (jet water flow in the present embodiment) for discharging filth through the sealed water storage portion 40 of the drainage pipe line 16 is formed.

See also FIG. 10D. Most of the sealed water Wa in the drainage pipe 16 is discharged by jet cleaning, and the actual water level is lowered. When the water reservoir operation of discharging the water We from the rim discharge portion 22A is executed by the water supply device 72 (S16), the actual water level of the sealed water Wa lowered by the jet cleaning can be raised. By the water reservoir operation, the actual water level of the sealed water Wa is raised to the allowable water level (here, the lower limit water level WL1) set by the water level setting mechanism 18 during the water reservoir operation.

See also FIG. 10E. When the toilet bowl cleaning by the water supply device 72 is completed, the accumulator 86 executes the water introduction operation. As described above, the accumulator 86 executes a raising drive that drives the water level setting mechanism 18 so as to raise the allowable water level to the standby water level WL3 in the direction Dc1 in conjunction with the water introduction operation (S18). As a result, the water level setting mechanism 18 sets the allowable water level to return to the standby water level WL3. The drive source 74 will perform a raised drive before the next toilet bowl cleaning.

The effects of the above ingenuity will be explained.

(F) The drive source 74 executes a bulk lowering drive for driving the water level setting mechanism 18 so as to lower the allowable water level during toilet bowl cleaning. As a result, during cleaning of the toilet bowl, the actual water level of the sealed water Wa can be lowered by the amount corresponding to the lowering width Wx (see FIG. 10C) of the allowable water level by the water level setting mechanism 18. The lowering width Wx here is the difference in height from the standby water level WL3 to the lower limit water level WL1 in the present embodiment. Along with this, during cleaning of the toilet bowl, it becomes easier to apply a pushing force of a drop difference equal to the lowering width of the actual water level of the sealed water Wa to the water in the drainage pipe line 16. As a result, the pushing force allows the water in the drainage pipe 16 to be discharged at an early stage together with the filth.

In addition to this, in the wash-off type toilet body 14, the actual water level of the accumulated water Wb is increased by the amount corresponding to the lowering width Wx of the allowable water level by the water level setting mechanism 18 during the washing of the toilet by executing the raising drive. Can also be lowered. Along with this, during the cleaning of the toilet bowl, the pushing force of the falling difference of the sealed water Wa is applied to the water in the drainage pipe line 16, and the pushing force of the falling difference equal to the lowering width of the actual water level of the accumulated water Wb is applied to the toilet bowl. It becomes easy to apply to the water in the portion 12. As a result, the pushing force allows the water in the toilet bowl portion 12 to be discharged at an early stage together with the filth. In the toilet bowl main body 14 of the present embodiment, the filth is washed away by using the head of the accumulated water Wb generated by the rim cleaning. In the toilet bowl main body 14 of the present embodiment, the discharge of filth can be promoted by jet cleaning in the process of flushing filth in this way.

(G) The water supply device 72 can execute the water addition operation after the raising drive performed before the toilet bowl cleaning and before the raising driving performed during the toilet bowl cleaning. As a result, the actual water level of the sealed water can be automatically raised before the raising drive performed during the toilet bowl cleaning.

(H) The drive source 74 performs a bulk-down drive during jet cleaning. Therefore, while promoting the discharge of filth by the force of the jet water flow by jet cleaning, the filth can be discharged at an early stage by using the above-mentioned pushing force of the head.

(I) The water supply device 72 performs a water addition operation by performing rim cleaning. As a result, the actual water level of the sealed water can be raised while cleaning the inside of the toilet bowl portion 12.

(J) The accumulator 86 constituting the drive source 74 can execute the raising drive and the raising drive in conjunction with the water discharge operation and the water introduction operation. Therefore, the number of parts can be reduced as compared with the case where the drive source 74 is provided separately from the accumulator 86.

The water level setting mechanism 18 can raise the allowable water level higher than the lower limit water level WL1 determined by the water channel top 42 of the drainage pipe line 16. Therefore, the height of the water channel top 42 of the drainage pipe 16 can be lowered while ensuring the required allowable water level (for example, the standby water level WL3) higher than the lower limit water level WL1. At the same time, when the allowable water level is at the lower limit water level WL1, the amount of sealed water Wa stored in the sealed water storage unit 40 can be reduced. As a result, it is possible to discharge filth, sewage, etc. in the sealed water storage unit 40 with a small amount of washing water by jet washing while ensuring a required allowable water level higher than the lower limit water level WL1.

In addition to this, by lowering the height of the water channel top 42 of the drainage pipe 16 as described above, the amount of water stored in the sealed water storage unit 40 when in the ruptured state (see FIG. 10C). Can be reduced. Along with this, it is possible to reduce the flow rate of water to be discharged from the jet discharge unit 22B in order to discharge the water in the sealed water storage unit 40 by jet cleaning when the seal is in the ruptured state. As a result, it is possible to reduce noise during jet cleaning.

Other features of the toilet bowl device 10 will be described. 7 and 8 are referred to. The water supply device 72 includes an electric unit 100 that can be operated by electric power supplied from a power source (not shown). The electric unit 100 of the present embodiment is a solenoid valve constituting the second on-off valve 78B. The power source of this embodiment is an external power source such as a commercial power source. In addition to this, the power source may be a battery or the like mounted on the toilet bowl main body 14.

The second on-off valve 78B includes an internal passage 102 that is a part of the second water supply channel 76B, a valve body 104 that can open and close the internal passage 102, and a solenoid coil 106 that drives the valve body 104 in the valve opening direction Db1. A second urging member 108 that urges the valve body 104 in the valve closing direction Db2 is provided.

See FIG. 7. When the solenoid coil 106 is energized, the second on-off valve 78B drives the valve body 104 in the valve opening direction Db1 by the solenoid coil 106, and opens the internal passage 102 by the valve body 104. When the second on-off valve 78B is in the valve open state, the electric unit 100 is in a state of being operated by using electric power (hereinafter, referred to as an operating state Sa1).

When the electric unit 100 switches from the operation release state Sa2 (described later) to the operation state Sa1, the drive source 74 (here, the accumulator 86) executes the raising drive in conjunction with the water discharge operation as described above. As a result, the drive source 74 lowers the allowable water level set by the water level setting mechanism 18 in the direction Dc2 to the lower limit water level WL1. After that, the drive source 74 maintains the allowable water level set by the water level setting mechanism 18 at the lower limit water level WL1 while the electric unit 100 is maintained in the operating state Sa1.

See FIG. When the energization of the solenoid coil 106 is released, the second on-off valve 78B drives the valve body 104 in the valve closing direction Db2 by the second urging member 108, and closes the internal water channel 32 by the valve body 104. It becomes a valve state. When the second on-off valve 78B is in the closed state, the electric unit 100 is in a state in which the operation using electric power is released (hereinafter, referred to as the operation release state Sa2).

When the electric unit 100 switches from the operation state Sa1 to the operation release state Sa2, the drive source 74 (here, the accumulator 86) executes the raising drive in conjunction with the water introduction operation as described above. As a result, the drive source 74 raises the allowable water level set by the water level setting mechanism 18 to the standby water level WL3 in the direction Dc1. After that, the drive source 74 maintains the allowable water level set by the water level setting mechanism 18 at the standby water level WL3 while the electric unit 100 is maintained in the operation release state Sa2.

(K) As described above, the water level setting mechanism 18 can change the allowable water level in conjunction with the operation of the electric unit 100. In addition to this, the allowable water level is maintained at the standby water level WL3 higher than the lower limit water level WL1 when the electric unit 100 is in the operation release state Sa2. As a result, when the power supply fails, it becomes easier to maintain the actual water level of the sealed water Wa in a high state as compared with the case where the allowable water level set by the water level setting mechanism 18 becomes the lower limit water level WL1. As a result, when the power supply is cut off, it becomes easier to prevent the backflow of odor.

(Second Embodiment) Refer to FIGS. 11 and 12. FIG. 11 shows a state in which the valve member 44 is in the open position Pa1 and FIG. 12 shows a state in which the valve member 44 is in the closed position Pa2.

The toilet device 10 of the present embodiment is different from the first embodiment in the valve member 44 of the water level setting mechanism 18, the air bleeding path 66, and the drainage pipe line 16.

The valve member 44 of the present embodiment includes a bellows 110 and a plate-shaped valve body portion 58C fixed to the bellows 110. The bellows 110 is a tubular body having a bellows structure formed on the outer peripheral surface. A valve body portion 58C is fixed to one end of the bellows 110 in the axial direction, and the other end is fixed to the drainage pipe line 16. The valve body portion 58C is rotatably connected to the drainage pipe line 16 via the support shaft 112. The valve member 44 can adjust the opening degree of the internal water channel 32 with the rotation of the valve body portion 58C. The variable volume chamber 46 is formed inside the bellows 110 at a position surrounded by the bellows 110 and the valve body portion 58C. The bellows 110 can be expanded and contracted as the volume of the variable volume chamber 46 increases or decreases.

The valve member 44 of the present embodiment can adjust the opening degree of the internal waterway 32 by opening and closing the opening / closing port 45 provided in the internal waterway 32 on the downstream side of the rising waterway 34. The opening / closing port 45 of the present embodiment is configured by a downstream end opening 26b provided at the downstream end of the toilet drainage channel 26. The downstream end opening 26b is provided at the downstream end of the straight channel 38. When the valve member 44 is in the closed position, the valve body portion 58C closes the entire opening / closing port 45. At this time, the valve body portion 58C of the valve member 44 abuts on the opening peripheral edge portion of the opening / closing port 45, so that the opening / closing port 45 is closed. At this time, the valve member 44 is in a fully closed state in which a part of the internal water channel 32 is completely closed.

The toilet drainage channel 26 includes a through hole 118 provided at a position different from the downstream end opening 26b of the toilet bowl drainage channel 26. The through hole 118 is provided above the waterway top 42. Specifically, the through hole 118 is provided above the center line CL1 of the toilet drainage channel 26, and is provided on the inner upper surface of the internal water channel 32. The through hole 118 of the present embodiment penetrates the connected portion 26a of the toilet bowl drainage channel 26 in the radial direction.

The upstream space 62 of the present embodiment is provided on the upstream side of the downstream end opening 26b of the toilet drainage channel 26. The downstream space 64 of the present embodiment is formed inside the drainage socket 28. A part of this downstream space 64 is formed between the upstream end portion of the drainage socket 28 and the outer peripheral side portion of the toilet bowl drainage channel 26. The through hole 118 constitutes at least a part of the air bleeding path 66. The through hole 118 of the present embodiment constitutes the entire air bleeding path 66. The above-mentioned effect (D) can also be obtained by this embodiment.

The lower limit water level WL1 set by the water level setting mechanism 18 is at a height position aligned with the top portion 42 of the water channel (see FIG. 11). The upper limit water level WL2 set by the water level setting mechanism 18 is at a height position overlapping with the through hole 118 constituting the air bleeding path 66 (see FIG. 12). The upper limit water level WL2 of the present embodiment is at a height position aligned with the upper end opening of the through hole 118. Therefore, the upper limit water level WL2 set by the water level setting mechanism 18 can be made higher than the case where the toilet bowl drainage channel 26 is opened on the inner and lower surfaces.

The drainage pipe 16 of the present embodiment does not include the connection pipe 30. The pipeline component 68 of the present embodiment is a drainage socket 28. The water level setting mechanism 18 is arranged inside the drainage socket 28 constituting the pipeline component 68, and is attached to the pipeline component 68. The above-mentioned effect (E) can also be obtained by this embodiment.

In addition to this, the toilet bowl device 10 of the present embodiment includes the components (not shown) described in the above-mentioned (A) to (C) and (F) to (K), and has an effect corresponding to those explanations. Can be obtained.

(Third Embodiment) Refer to FIG. The toilet device 10 of the present embodiment is different in the drive source 74 as compared with the first embodiment. Specifically, the toilet device 10 of the present embodiment does not include the accumulator 86 serving as a drive source 74. The drive source 74 of the present embodiment is a pump mechanism 114 capable of pressurizing and depressurizing the variable volume chamber 46 of the valve member 44. The pump mechanism 114 is, for example, a combination of an air supply pump and a pressure reducing valve. In this case, the variable volume chamber 46 is pressurized by driving the air supply pump while keeping the pressure reducing valve in the closed state. The variable volume chamber 46 is depressurized by stopping the drive of the air supply pump and maintaining the pressure reducing valve in the valve open state. Specific examples of the pump mechanism 114 are not particularly limited, and for example, a combination of an air supply pump and an exhaust pump may be used.

When the variable volume chamber 46 is pressurized by the pump mechanism 114, the variable volume chamber 46 expands, the valve member 44 is moved to the closed position Pa2 (similar to FIG. 4), and the water level setting mechanism raises the allowable water level to the upper limit water level WL2. 18 is driven. When the variable volume chamber 46 is depressurized by the pump mechanism 114, the variable volume chamber 46 contracts, the valve member 44 is moved to the open position Pa1 (similar to FIG. 3), and the water level setting mechanism 18 lowers the allowable water level to the lower limit water level WL1. Is driven. The pump mechanism 114 is electrically connected to the control unit 80. The variable volume chamber 46 can be pressurized and depressurized by the pump mechanism 114 under the control of the control unit 80.

See FIG. 14. An example of the operation related to the toilet bowl cleaning in the toilet bowl device 10 of the present embodiment will be described. S10 and S12 are common to the first embodiment. In S14, the present embodiment is different in that the pump mechanism 114 as the drive source 74 is controlled by the control unit 80 to perform the bulk lowering drive.

In addition to this, there is a difference in the operation during the water reservoir operation of S16 as compared with the operation of the first embodiment. It will be described in detail. See FIG. When the actual water level of the sealing water Wa is lowered by the jet cleaning (S14) of the water supply device 72, the sealing state by the sealing water Wa is released and the sealing state is reached. When the water reservoir operation of discharging the water We from the rim discharge portion 22A is executed by the water supply device 72 (S16), the actual water level of the sealed water Wa is raised when the sealed state is in the broken state. When the actual water level of the sealed water Wa is raised above the deepest portion 40a on the inner upper surface of the sealed water storage portion 40, the broken state is released.

The control unit 80 of the present embodiment executes the raising drive by the drive source 74 during such a water reservoir operation. It can also be considered that the drive source 74 executes the raising drive when the drainage pipe line 16 is in the broken state. This is done, for example, by performing a raising drive by the control unit 80 using the drive source 74 (here, the pump mechanism 114) while the control unit 80 maintains the first on-off valve 78A in the valve open state. It will be realized. By executing the raising drive during the water reservoir operation, the opening degree of the internal water channel 32 of the drainage pipe line 16 is reduced by the valve member 44. As a result, it is possible to suppress the backflow of odor until the ruptured state is released.

(Fourth Embodiment) Refer to FIG. The toilet bowl device 10 includes a sensor 116 capable of detecting a specific operation of the user. The sensor 116 can detect a sitting motion with respect to the toilet seat 11 as a user-specific motion. The sitting motion here means the motion itself of sitting on the toilet seat 11. The sensor 116 is, for example, a photoelectric sensor, a touch sensor, a pressure sensitive sensor, or the like. The photoelectric sensor is, for example, an infrared sensor or the like. The sensor 116 is installed, for example, in the casing 82 (see FIG. 1).

The control unit 80 of the water supply device 72 is electrically connected to the sensor 116. The control unit 80 executes the water addition operation based on the detection result by the sensor 116. Specifically, the control unit 80 executes the water addition operation when the sensor 116 detects the user's specific operation (seating operation in the present embodiment).

See FIG. 17. An example of the operation related to the toilet bowl cleaning in the toilet bowl device 10 of the present embodiment will be described. Similar to the first embodiment, the drainage pipe line 16 stores the sealed water Wa having the lower limit water level WL1 as the actual water level by the previous toilet bowl cleaning. The water level setting mechanism 18 sets the allowable water level to the standby water level WL3 prior to cleaning the toilet bowl (S10).

The control unit 80 of the water supply device 72 monitors the output of the sensor 116 until the cleaning start condition is satisfied. The control unit 80 executes a water addition operation (S22) when a user's specific operation (here, a sitting operation) is detected by the sensor 116 until the cleaning start condition is satisfied (Y in S20). By executing the water addition operation, the water surface size of the pooled water Wb in the toilet bowl portion 12 can be increased as compared with before the water addition operation is executed. When the user sits down, the user will use the stool in the sitting position. When the user urinates in the sitting position, the urine is likely to hit the front part of the toilet bowl portion 12. In this case, by increasing the water surface size of the accumulated water Wb, it becomes easy to directly apply the small water to the accumulated water Wb. As a result, it is possible to prevent small water from adhering to the toilet bowl portion 12.

When the control unit 80 of the water supply device 72 does not detect the specific operation (here, the sitting operation) by the sensor 116 before the cleaning start condition is satisfied, the control unit 80 does not execute the water addition operation (S24). As a result, the water surface size of the accumulated water Wb in the toilet bowl portion 12 can be maintained without being increased. When the user does not perform the sitting motion, the user will urinate in a standing position. In this case, the small water is more likely to hit the rear portion of the toilet bowl portion 12 as compared with the case where the small water is used in the sitting position. Therefore, even if the water surface size of the accumulated water Wb is not increased, it becomes easy to directly apply the small water to the accumulated water Wb. As a result, a water saving effect can be expected as compared with the case of executing the water addition operation.

The other S12, S14, S16, and S18 are common to the first embodiment. However, when the water addition operation is executed in S22, the water addition operation is not executed due to the rim cleaning in S12. Similarly, when the water addition operation is not executed in S24, the water addition operation is executed by the rim cleaning in S12.

As described above, the water supply device 72 executes the water addition operation based on the detection result of the sensor 116. Therefore, the actual water level of the sealed water Wa can be raised by the water supply device 72 in conjunction with the user's specific operation. In particular, by adding water to the toilet bowl body 14 at the timing of detecting the user's specific operation, it is possible to realize a state in which the toilet bowl portion 12 is wet immediately before the user uses the stool. Therefore, there is an advantage that the adhesion of filth can be suppressed as compared with the case where the actual water level of the sealed water Wa is always kept raised.

From the viewpoint of obtaining the same effect, the sensor 116 may be able to detect a predetermined pre-seat motion performed before attempting to sit on the toilet seat 11 as a user-specific motion. The pre-seat motion refers to, for example, an motion of entering the toilet room, an motion of approaching the toilet seat 11, and the like.

(Fifth Embodiment) Refer to FIG. The toilet device 10 of the present embodiment is different in the type of the toilet body 14 as compared with the second embodiment. More specifically, in the first and second embodiments, the floor-standing toilet body 14 placed on the floor F of the toilet room has been described as the toilet body 14. The toilet body 14 of the present embodiment is a wall-mounted type that is arranged at a distance from the floor F of the toilet room. The wall-mounted toilet body 14 is fixed to the toilet receiving member (not shown) in a state of being abutted against the wall portion W of the toilet room. The toilet bowl receiving member is, for example, a support frame arranged on the back side of the wall portion of the toilet room. As described above, the type of the toilet bowl main body 14 may be either a wall-mounted type or a floor-standing type.

In addition to this, the drainage pipe 24 (not shown) of the present embodiment is a wall drainage specification installed on the wall portion W of the toilet room. As described above, the type of the drainage pipe 24 may be either a floor drainage specification or a wall drainage specification.

The pipeline component 68 of the present embodiment is also a drainage socket 28 as in the second embodiment. The upstream end of the pipeline component 68 is watertightly connected to the connected portion 26a of the toilet bowl body 14 via the first seal member 70, as in the first embodiment. The first seal member 70 has a cylindrical shape and includes a through hole 120 penetrating in the radial direction thereof. The pipeline component 68 includes a communication passage 122 that communicates the through hole 120 of the first seal member 70 and the downstream space 64 in the drainage pipeline 16. The air bleeding path 66 of the present embodiment is composed of a through hole 118 of the toilet body 14, a through hole 120 of the first seal member 70, and a communication passage 122.

The opening / closing port 45 of the present embodiment is provided in the drainage socket 28 on the downstream side of the downstream end opening 26b of the toilet bowl drainage channel 26. The valve body portion 58C of the valve member 44 can close the opening / closing port 45 by abutting against the opening peripheral edge portion of the opening / closing port 45. The valve body portion 58C includes an elastic portion 58D provided at the abutting portion of the opening / closing opening 45 with respect to the opening peripheral edge portion, and a hard portion 58E provided on the side opposite to the opening / closing opening 45 with the elastic portion 58D interposed therebetween. The elastic portion 58D has a sheet shape and is composed of an elastic body. The elastic body is, for example, a rubber resin, a sponge, or the like. The hard portion 58E is, for example, a non-rubber resin, a metal, or the like. As a result, when the valve body portion 58C is abutted against the opening peripheral edge portion of the opening / closing port 45, the elastic portion 58D is deformed, so that the valve body portion 58C can be easily brought into close contact with the opening / closing port 45.

Other variants of each component will be described.

The drainage pipe line 16 does not have to be provided with the drainage socket 28. The drainage pipe 16 does not have to be provided with the descending channel 36 on the downstream side of the ascending channel 34. The drainage pipe 16 does not have to be provided with the straight waterway 38. It can be said that the water channel top 42 of the drainage pipe 16 may be composed of only the rising water channel 34.

The drainage pipe 24 has been described by taking the floor drainage specification as an example. In addition to this, the drainage pipe 24 may have a wall drainage specification.

The water level setting mechanism 18 only needs to be able to variably set the allowable water level of the sealing water, and the specific example thereof is not particularly limited. In a part of the water level range of the allowable water level set by the water level setting mechanism 18, the shutoff of the drainage pipe line 16 by the sealed water Wa may be released.

The water level setting mechanism 18 may be attached to the toilet drainage channel 26 in addition to the pipeline component member 68. The pipeline component 68 to which the water level setting mechanism 18 is attached is not limited to the connection pipe 30 and the drainage socket 28.

The location where the opening degree is adjusted by the valve member 44 in the internal water channel 32 of the drainage pipe line 16 is not particularly limited. For example, the ascending channel 34 of the internal channel 32 may be used. The specific structure of the valve member 44 is not particularly limited, and the valve member 44 may not include the variable volume chamber 46. The valve member 44 may be able to adjust the opening degree of the internal water channel 32, for example, by moving back and forth linearly.

Unlike the embodiment, the relief space 64 may be provided separately from the internal space of the drain pipe 24. The relief space 64 may be configured by, for example, an internal space of an expandable bag body provided separately from the drainage pipe line 16.

The pipe space 60 does not have to have the air bleeding path 66. The air bleeding path 66 may communicate the upstream space 62 and the downstream space 64 when raising the actual water level of the sealing Wa, in other words, when performing the water addition operation. As long as this condition is satisfied, the upstream space 62 and the downstream space 64 may be continuously communicated with each other or may be temporarily communicated with each other.

In addition to the solenoid valve, the electric unit 100 may be a linear actuator such as a solenoid actuator that also serves as a drive source 74. In this case, the drive source 74 may maintain the allowable water level by the water level setting mechanism 18 to be the standby water level WL3 by the urging force of the urging member (for example, a spring) when the operation is released. When the drive source 74 is in the operating state, the driving force may be applied to the water level setting mechanism 18 against the urging force to maintain the allowable water level by the water level setting mechanism 18 at the lower limit water level WL1.

The standby water level WL3 may be higher than the lower limit water level WL1 and may be lower than the upper limit water level WL2. For example, the allowable water level may be set to increase in the order of the lower limit water level WL1 → the standby water level WL3 → the upper limit water level WL2. In this case, the set water level may be maintained at the allowable water level WL3 before cleaning the toilet bowl, and the set water level may be raised from the allowable water level WL3 to the upper limit water level WL2 during the toilet bowl cleaning. Such a change in the allowable water level may be executed by using the control by the control unit 80.

The drive source 74 is not limited to the accumulator 86 and the pump mechanism 114. The drive source 74 may be, for example, a motor or the like.

An example has been described in which the water supply device 72 executes a water addition operation by performing rim cleaning using a water supply channel 76A that supplies water to the discharge units 22A and 22B. Specific examples of the water supply channel used to perform the water addition operation are not particularly limited. For example, the water addition operation may be performed using a water supply channel that supplies water to the cleaning nozzle of the sanitary cleaning device. In this case, the water addition operation may be executed during the execution of the rim cleaning, or the water addition operation may be executed before the execution of the rim cleaning.

An example in which the water addition operation is performed by the water supply device 72 has been described. In addition to this, the water addition operation may be performed manually. For example, the water addition operation may be executed by manually putting water such as a PET bottle into the toilet bowl portion 12 after the raising drive by the drive source 74 and before the raising drive.

The water supply device 72 may perform a water addition operation by rim cleaning during toilet bowl cleaning (first embodiment), or may perform a water addition operation before toilet bowl cleaning (fourth embodiment). In addition to this, the water addition operation may be executed before the toilet bowl cleaning based on the detection result of the sensor 116, and then the water addition operation may be executed by the rim cleaning during the toilet bowl cleaning. That is, the actual water level of the sealed water Wa may be raised to a predetermined allowable water level (for example, the standby water level WL3) by executing a plurality of water addition operations. In any case, the water supply device 72 may perform the water addition operation after the raising drive and before the raising drive.

The raising drive may be performed during the toilet bowl cleaning. For example, jet cleaning by the water supply device 72 (S14) → raising drive by the water level setting mechanism 18 (S10) → water storage operation by the water supply device 72 (S16) may be executed in this order.

The toilet device 10 may include a cleaning medium supply device that supplies a cleaning medium other than water to the toilet bowl portion 12 of the toilet body 14. The cleaning medium here means, for example, any of cleaning foam, alkaline liquid, and acidic liquid. Here, "water" as a cleaning medium means a single-phase flow of water having a hydrogen ion index (hereinafter referred to as pH) of 6 or more and less than 8. "Washing foam" refers to a mixed phase flow of liquid and air. The pH of the liquid here is not particularly limited. Alkaline liquids are used to remove scale. The alkaline liquid is, for example, a solution of baking soda, an oxygen-based bleaching agent (for example, sodium percarbonate), a chlorine-based bleaching agent, or the like. The other alkaline liquid is, for example, a liquid containing an alkaline enzyme. The acidic liquid is used to remove black mold. The acidic liquid is, for example, a solution of citric acid, a urinary stone remover or the like. The other acidic liquid is, for example, a liquid containing hydrochloric acid, an organic acid, an acidic enzyme or the like.

When the cleaning foam is used, the cleaning foam may be supplied by the cleaning medium supply device in a state where the actual water level of the sealing water Wa is raised from the lower limit water level WL1 to the standby water level WL3 prior to cleaning the toilet bowl. As a result, by supplying the cleaning foam in a state where the water surface size of the accumulated water Wb is large, it is possible to cover a wide area in the toilet bowl portion 12 with the cleaning foam.

In addition to this, when the cleaning foam is used, the cleaning foam may be supplied by the cleaning medium supply device in a state where the actual water level of the sealing water Wa is maintained at the lower limit water level WL1 or less prior to cleaning the toilet bowl. That is, the toilet bowl cleaning may be performed after the cleaning foam is supplied by the cleaning medium supply device without raising the actual water level of the sealing water Wa to the standby water level WL3. As a result, the cleaning foam is supplied under the state where the water surface size of the accumulated water Wb is reduced. Therefore, as compared with the case where the actual water level of the sealing water Wa is raised to the standby water level WL3, the amount of cleaning foam to be supplied in order to cover the entire accumulated water Wb with the cleaning foam can be reduced.

See FIG. In the toilet device 10 of the present modification, a cleaning medium supply device (not shown) is incorporated in the toilet device 10 of the second embodiment. The toilet bowl portion 12 is connected to an elevation portion 130 extending upward from the water surface of the reservoir Wb (see also FIG. 11) in front of the reservoir Wb at the lower limit water level WL1 and an upper end edge portion of the elevation portion 130. A gentle slope portion 132 that is more gently inclined than the elevation portion 130 is provided. The elevation portion 130 and the gentle slope portion 132 are provided on the front portion of the toilet bowl portion 12. A convex curved surface portion 134 that is convex upward is formed at the boundary portion between the upper end edge portion of the elevation portion 130 and the inner peripheral end edge portion of the gentle slope portion 132.

Even if the cleaning foam B is supplied by the cleaning medium supply device while the actual water level of the sealing water Wa is maintained at the standby water level WL3 (for example, the upper limit water level WL2) higher than the lower limit water level WL1 by the water level setting mechanism 18. good. The standby water level WL3 is, for example, a water level at which the water surface of the accumulated water Wb reaches above the convex curved surface portion 134 in the front portion of the toilet bowl portion 12. As a result, by storing the cleaning foam B on the pooled water Wb, when small water or the like tries to land on the front portion of the toilet bowl portion 12, the generation of droplets can be effectively suppressed by the cleaning foam. ..

The above embodiments and modifications are exemplary. The technical ideas that abstract these should not be construed as being limited to the contents of the embodiments and variants. As for the contents of the embodiment and the modified form, many design changes such as change, addition, and deletion of components are possible. In the above-described embodiment, the content in which such a design change is possible is emphasized by adding the notation "embodiment". However, design changes are allowed even if there is no such notation. The hatching attached to the cross section of the drawing does not limit the material of the object to which the hatching is attached. The structures referred to in the embodiments and modifications naturally include structures that are offset by an error that can be regarded as the same in consideration of manufacturing errors and the like.

Any combination of the above components is also valid. For example, any explanatory matter of the other embodiment may be combined with the embodiment, or any explanatory matter of the embodiment and the other modified form may be combined with the modified form.

10 ... Toilet bowl device, 12 ... Toilet bowl part, 14 ... Toilet bowl body, 16 ... Drainage pipe, 18 ... Water level setting mechanism, 20 ... Rim part, 22A ... Rim discharge part, 22B ... Jet discharge part, 24 ... Drainage pipe, 26 ... toilet drainage channel, 32 ... internal water channel, 44 ... valve member, 60 ... pipe space, 62 ... upstream space, 63 ... atmospheric space, 64 ... downstream space, 64 ... relief space, 66 ... air bleeding path, 68 ... Pipeline component, 72 ... Water supply device, 74 ... Drive source, 76A, 76B ... Water supply channel, 86 ... Accumulator, 100 ... Electric unit, 116 ... Sensor.

Claims (15)

Toilet bowl body with toilet bowl and
A drainage pipe that is connected to the bottom of the toilet bowl and stores sealed water inside itself.
A toilet device including a water level setting mechanism capable of changing an allowable water level which is the maximum water level of the sealed water that can be stored in the drainage pipe while the sealed water is stored in the drainage pipe. The toilet device according to claim 1, wherein the water level setting mechanism can change the allowable water level within a water level range from the lower limit water level to the upper limit water level while the drainage pipe line is blocked by the water sealing. Equipped with an electric part that can be operated by electric power
The water level setting mechanism can change the allowable water level in conjunction with the operation of the electric unit.
The toilet bowl device according to claim 2, wherein the allowable water level is maintained at a water level higher than the lower limit water level when the electric unit is in a state of being released from operation. The drainage pipe is provided with an in-pipe space provided on the downstream side of the sealed water that shuts off the drainage pipe.
The toilet device according to any one of claims 1 to 3, wherein the space inside the pipe is provided separately from the air space around the toilet device and is communicated with a relief space for releasing air in the space inside the pipe. The toilet device according to any one of claims 1 to 4, wherein the water level setting mechanism includes a valve member capable of changing the allowable water level by adjusting the opening degree of the internal water channel of the drainage pipe. The drainage pipe is provided with an in-pipe space provided on the downstream side of the sealed water that shuts off the drainage pipe.
The space inside the pipe is
The upstream space provided on the upstream side of the valve member in the closed position, and the space on the upstream side.
A downstream space provided on the downstream side of the valve member in the closed position, and a space on the downstream side.
The toilet bowl device according to claim 5, further comprising an air bleeding path communicating the upstream space and the downstream space. The drainage pipeline includes a toilet bowl drainage channel provided in the toilet bowl body as a part of the toilet bowl body, and a pipeline component member detachably connected to the toilet bowl drainage channel.
The toilet device according to any one of claims 1 to 6, wherein the water level setting mechanism is attached to the pipeline constituent member. With a drive source that can drive the water level setting mechanism,
A water supply device capable of cleaning the toilet bowl by supplying water to the toilet bowl body is provided.
The drive source is
Before cleaning the toilet bowl, a raising drive for driving the water level setting mechanism is executed so as to raise the allowable water level.
The toilet device according to any one of claims 1 to 7, wherein during the cleaning of the toilet, a raising drive for driving the water level setting mechanism is performed so as to lower the allowable water level. The toilet device according to claim 8, wherein the water supply device can perform a water addition operation of adding water for raising the actual water level of the sealed water to the toilet body body after the raising drive and before the raising drive. .. The toilet body includes a rim portion that constitutes an upper end side portion of the toilet bowl portion.
This toilet device is
A rim discharge portion provided on the rim portion and discharging water into the toilet bowl portion,
A jet discharge unit that discharges water toward the downstream side of the drainage pipe is provided.
When the toilet bowl cleaning is executed, the water supply device can sequentially execute rim cleaning that supplies water only to the rim discharge portion and at least jet cleaning that supplies water to the jet discharge portion, and the drive source is the jet. The toilet bowl device according to any one of claims 8 to 9, wherein the lifting drive is performed during cleaning. The toilet bowl device according to claim 10, wherein the water supply device performs the water addition operation according to claim 9 by performing the rim cleaning. The water level setting mechanism includes a valve member capable of changing the allowable water level by adjusting the opening degree of the internal water channel of the drainage pipe.
When the toilet bowl cleaning is executed, the water supply device can execute a water reservoir operation of supplying water to be the sealing water to the toilet bowl main body after the jet cleaning.
The toilet device according to any one of claims 10 to 11, wherein the drive source is a raising drive that is performed during the water reservoir operation. Equipped with a sensor that can detect a specific user action
The toilet device according to any one of claims 9 to 12, wherein the water supply device executes the water addition operation according to claim 9, based on the detection result of the sensor. The drive source is a pressure accumulator connected to the water supply channel of the water supply device.
The accumulator
The bulking drive is executed in conjunction with the operation of discharging the pressurized water to the water supply channel.
The toilet device according to any one of claims 8 to 13, wherein the raising drive is executed in conjunction with the operation of introducing water from the water supply channel. Toilet bowl body with toilet bowl and
A drainage pipe that is connected to the bottom of the toilet bowl and stores sealed water inside itself.
A jet discharge portion that discharges water toward the downstream side of the drainage pipe and is provided below the top of the drainage pipe.
A toilet device including a water level setting mechanism capable of changing an allowable water level which is the maximum water level of the sealed water that can be stored in the drainage pipe.

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