JP7173438B2 - toilet equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet apparatus, and more particularly to a toilet apparatus that cleans with flush water and discharges waste.

2. Description of the Related Art Conventionally, as shown in Patent Document 1, there is known a toilet apparatus in which a private parts washing apparatus and a washing water tank are housed in the same casing. In such a toilet apparatus, the washing water stored in the washing water tank evaporates and condenses inside the casing to produce condensed water. The water tank is formed in a closed tank structure.

On the other hand, when the flush water tank adopts a closed tank structure in this way, and the flush water in the closed flush water tank is drained to the toilet bowl, a sufficient amount of air is allowed to enter the closed flush water tank. If it is not possible to inhale, a sufficient amount of flushing water cannot be discharged from the closed toilet bowl flushing tank, possibly resulting in poor flushing of the toilet bowl. Therefore, it is necessary to smoothly suck the same volume of air as the amount of flushing water to be drained into the closed toilet bowl cleaning tank.
Therefore, in the toilet device of Patent Document 1, the intake pipe is attached to the flush water tank, and the intake pipe performs air supply and exhaust, and cools the steam flowing out of the flush water tank to return it to condensed water so that the condensed water flows into the toilet bowl. It has become.

Patent No. 6079968

However, as shown in Patent Document 1, the suction pipe is attached to the wash water tank so that the inlet of the suction pipe opens sideways in the wash water tank. , the water vapor generated inside the wash water tank tends to flow into the intake pipe, and there is a risk that a relatively large amount of water vapor may flow into the intake pipe. In addition, when a relatively large amount of water vapor flows into the intake pipe in this way, a relatively large amount of condensed water may flow out from the outlet of the intake pipe and evaporate again. There was also a risk that the water would flow out without being removed. Therefore, there is a possibility that electronic components inside the casing are short-circuited by the condensed water.
In addition, since the suction pipe is formed separately from the wash water tank, a space and structure for the suction pipe are required to attach the suction pipe to the wash water tank. There is also the problem of an increase in size, which hinders downsizing of the washing water tank device provided with the suction pipe.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-described problems and problems of the prior art, and suppresses the discharge of water vapor from the inner space of the cleaning water tank into the inner space of the casing through the ventilation pipe. It is an object of the present invention to provide a toilet apparatus capable of

In order to achieve the above object, the present invention provides a toilet apparatus that cleans with flush water and discharges waste, comprising a toilet body having a bowl portion for receiving waste, and a plate provided on the rear upper surface of the toilet body. a private part washing device provided on the upper surface of the plate; a closed cleansing water tank formed in the body, a casing for housing the private washing device and the cleansing water tank therein, a water supply device for supplying cleansing water to the cleansing water tank, and the cleansing water tank. an overflow part provided inside for discharging flush water exceeding the full water level of the flush water tank to the toilet body; and a vent pipe extending from the internal space of the flush water tank to the internal space of the casing outside the flush water tank. , wherein the vent pipe includes an inlet provided in the inner space of the wash water tank, a descending pipeline extending downward from the inlet, and an outlet opening at the lower end of the descending pipeline. and the inlet portion of the vent pipe is located above the opening of the overflow portion and opens upward.
In the present invention configured as described above, since the water vapor generated in the cleaning water tank is lighter than air, it forms an upward flow in the cleaning water tank. It is open upward. Therefore, when washing water is supplied into the washing water tank by the water supply device and the air in the washing water tank is exhausted through the ventilation pipe, it is possible to make it difficult for water vapor to flow into the inlet of the ventilation pipe. It is possible to suppress the discharge of water vapor from the vent pipe to the internal space of the casing. Further, when washing water is supplied into the washing water tank by the water supply device, the air in the washing water tank is also exhausted from the overflow portion. At this time, since the inlet of the vent pipe is located above the opening of the overflow part and is open upward, water vapor is less likely to be discharged from the vent pipe, and the overflow at a position lower than the inlet is prevented. It is possible to increase the amount of water vapor exhausted from the portion to the toilet bowl body outside the casing inner space. Therefore, it is possible to suppress the discharge of water vapor from the inner space of the cleaning water tank to the inner space of the casing through the ventilation pipe.

In the present invention, preferably, the washing water tank includes a ceiling surface above the inlet portion of the vent pipe and a predetermined area extending downward from the ceiling surface and directly above the inlet portion. With a standing wall like.
In the present invention configured as described above, even if the inlet is open upward, the ceiling surface of the wash water tank and the vertical wall extending downward from the ceiling surface are positioned directly above the inlet of the ventilation pipe. is formed so as to surround a predetermined area of the through a space. As a result, the water vapor that is generated in the wash water tank and rises to the ceiling surface in a region other than the area directly above the inlet moves laterally along the ceiling surface to just above the inlet and flows into the inlet. Suppressed. Furthermore, the condensed water adhering to the ceiling surface in the area other than the area directly above the inlet in the wash water tank is prevented from moving laterally along the ceiling surface to just above the inlet and flowing into the inlet. . Therefore, it is possible to further suppress the discharge of water vapor and condensed water from the ventilation pipe into the internal space of the casing.

In the present invention, preferably, the standing wall of the wash water tank extends below the inlet portion of the vent pipe.
In the present invention configured as described above, in order for the water vapor generated in the wash water tank and rising to the ceiling surface in a region other than directly above the inlet to flow into the inlet, it is necessary to wrap around below the vertical wall. , and the flow of water vapor into the inlet is further suppressed. In addition, even if the inlet is open upward, if the condensed water adhering to the area other than the area directly above the inlet of the cleaning water tank flows down along the inner surface of the cleaning water tank, the vertical wall will pass through. Since it extends below the inlet of the trachea, the condensed water is guided below the inlet along the standing wall arranged through the inlet and the space. Therefore, the flow of condensed water into the inlet is further suppressed. Therefore, it is possible to further suppress the discharge of water vapor and condensed water from the ventilation pipe into the internal space of the casing.

In the present invention, preferably, the vent pipe forms a structure integral with at least the vertical wall structure of the water storage portion of the wash water tank.
In the present invention configured as described above, since the vent pipe forms a structure integral with the vertical wall structure of the water storage portion of the flush water tank, the vent pipe is located in the inner space of the flush water tank at the opening of the overflow portion. It is possible to realize a relatively compact structure with an inlet located above and opening upward. If a separate vent pipe were to be retrofitted to the washing water tank at the position and opening direction as described above, the structure of the washing water tank apparatus would be enlarged. According to the configuration of this embodiment, it is possible to prevent the structure of the washing water tank device having the vent pipe from becoming large.

In the present invention, preferably, a heat insulating layer is further provided between the descending pipeline and the outer wall of the wash water tank.
In the present invention configured as described above, the heat insulating layer can suppress heat exchange between the descending pipeline and the outer wall of the wash water tank. As a result, it is possible to prevent the water vapor from flowing out of the downcomer line without condensation and/or the condensed water from reverting to water vapor and flowing out of the downcomer line.

In the present invention, preferably, the plate includes a drain port portion for draining water droplets from the top surface of the plate to the bowl portion, and a drain port portion formed on the top surface of the plate so that water droplets are discharged from the area below the outlet portion of the vent pipe. a drainage path extending to a drainage port and formed to guide water droplets dropped from the vent pipe to the drainage port.
In the present invention configured as described above, the condensed water condensed in the descending pipeline of the vent pipe falls into the drainage path formed on the upper surface of the plate, and is drained from the area below the outlet of the vent pipe by the drainage path. It is guided to the mouth and drained from the drain port to the bowl. As a result, the dripped water droplets remain on the plate, and it is possible to prevent the water droplets from evaporating and condensing inside the casing.

According to the toilet apparatus of the present invention, it is possible to suppress the discharge of water vapor from the inner space of the flush water tank to the inner space of the casing through the ventilation pipe.

1 is a top view of a toilet apparatus according to one embodiment of the present invention; FIG. 1 is a side view of a toilet apparatus according to one embodiment of the invention; FIG. FIG. 2 is a cross-sectional view taken along line III-III of FIG. 1; 1 is a top view showing a casing plate of a toilet apparatus according to an embodiment of the present invention, a flush water tank apparatus provided on the upper surface of the casing plate, and a private washing apparatus; FIG. 1 is a side view showing a casing plate of a toilet apparatus according to an embodiment of the present invention, a washing water tank device and a private washing device provided on the upper surface of the casing plate, and a vent pipe attached to the washing water tank device; FIG. 1 is a top view showing a casing plate in a toilet apparatus according to an embodiment of the present invention, with the casing, the flush water tank apparatus and the private washing apparatus omitted; FIG. 1 is a top view of a flush water tank device for a toilet apparatus according to one embodiment of the present invention; FIG. FIG. 8 is a side view of the wash water tank device of FIG. 7; FIG. 8 is a cross-sectional view taken along line IX-IX of FIG. 7; FIG. 9 is a cross-sectional view taken along line XX of FIG. 8; FIG. 8 is a cross-sectional view taken along line XI-XI of FIG. 7; FIG. 9 is a cross-sectional view taken along line XII-XII of FIG. 8;

Next, a toilet apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings.
First, a toilet apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG.
FIG. 1 is a top view of a toilet apparatus according to one embodiment of the invention, FIG. 2 is a side view of the toilet apparatus according to one embodiment of the invention, and FIG. is a cross-sectional view.

As shown in FIGS. 1 to 3, reference numeral 1 denotes a toilet device that cleans with flush water and discharges waste. This toilet device 1 includes a ceramic toilet body 2 (see FIG. 2) and a cleaning unit 4, the toilet bowl body 2 includes a toilet lid 3 provided on the top surface of the toilet bowl body 2, a toilet seat 5 (see FIG. 3) arranged on the upper surface of the toilet bowl body 2, and a bowl portion 6 for receiving waste. , and a drainage trap pipeline 8 communicating with the lower portion of the bowl portion 6 are formed. The toilet body 2 may be made of resin and ceramics, or may be made of resin only, instead of ceramics.
An inwardly overhanging rim 10 is formed at the upper edge of the bowl portion 6 of the toilet body 2, and is formed inside the rear side of the toilet body 2 above the left side of the bowl portion 6 of the toilet body 2. A first water outlet 14 is formed to spout cleansing water supplied from the water conduit 12 , and the cleansing water spouted from the first water outlet 14 descends while swirling to create a swirling flow for cleaning the bowl portion 6 . It is mainly designed to form

Below the bowl portion 6, a water storage portion 16 is formed, the water storage surface of which is indicated by a chain line W0. An inlet 8a of a drain trap duct 8 is opened below the reservoir 16, and the drain trap duct 8 behind the inlet 8a is connected to an underfloor discharge pipe (see figure) through a drain socket (not shown). not shown).
A second water discharge port (not shown) for discharging flush water supplied from a water conduit 12 formed inside the rear side of the toilet body 2 is formed on the upper right side and the rear of the bowl portion 6. The wash water spouted from the second spout (not shown) produces a swirling flow that swirls the pooled water in the pooled water portion 16 mainly in the vertical direction.

Next, the structure of the cleaning unit will be described with reference to FIGS. 3 to 6. FIG.
FIG. 4 is a top view showing a casing plate of a toilet apparatus according to an embodiment of the present invention, a flush water tank apparatus provided on the upper surface of the casing plate, and a private washing apparatus, and FIG. 5 is a toilet apparatus according to an embodiment of the present invention. Fig. 6 is a side view showing a casing plate of the device, a washing water tank device and a private washing device provided on the upper surface of the casing plate, and a ventilation pipe attached to the washing water tank device; Fig. 6 is a toilet according to an embodiment of the present invention; FIG. 10 is a top view showing the casing plate in the apparatus with the washing water tank device and the private parts washing device omitted.

The washing unit 4 forms a washing unit integrated with a private parts washing device and a washing water tank device. The washing unit 4 is provided on the upper surface of the rear side of the toilet body 2 . The washing unit 4 includes a casing plate 18, which is a plate arranged on the upper surface of the rear side of the toilet body 2 and forming the base of the washing unit 4, and is provided on the upper surface of the casing plate 18 to wash the private parts of the human body. a washing water tank device 24 provided on the upper surface of the casing plate 18 for storing washing water for washing the toilet body 2; and the casing plate 18. Between them are a casing cover 26 (see FIG. 3), which is a casing for housing the private washing device 22 and the cleansing water tank device 24 inside, and the inner space of the cleansing water tank device 24 to the inside of the casing outside the cleansing water tank device 24. and a vent pipe 28 extending to the space.
Such a washing unit 4 can be commonly used for a toilet device without a hand basin, a toilet device with a hand basin, and a toilet device with a different shape of the toilet bowl body.

As shown in FIG. 6, the casing plate 18 is formed in a square shape. The casing plate 18 is formed such that the length of the side of the casing plate 18 in the left-right direction substantially matches the width of the toilet body 2 in the left-right direction in the left-right direction of the toilet body 2 , and the casing plate 18 extends in the front-rear direction of the toilet body 2 . The sides of the plate 18 in the front-rear direction are formed to extend from substantially the rear end of the toilet body 2 to the front side beyond the rear end of the bowl portion 6 . The casing plate 18 arranges the washing water tank device 24 and the private washing device 22 side by side on the casing plate 18 together, and stores them together as an integral unit in the inner space of one casing cover 26. do.

The casing plate 18 is formed on the upper surface of the casing plate 18 with a drain port portion 18a for draining water (including water droplets and water formed by gathering water droplets) from the upper surface of the casing plate 18 to the bowl portion 6. a drainage path 18c extending from a region 18b below the outlet portion 62 of the trachea 56 to the drain port portion 18a and formed to guide water droplets dropped from the outlet portion 62 of the vent pipe 56 to the drain port portion 18a; I have.

The drain port portion 18 a is arranged above the rear portion of the bowl portion 6 so that the water flowing out from the drain port portion 18 a falls into the bowl portion 6 . Also, outside air can flow into the inside of the casing cover 26 through gaps between the drain port 18a and the nozzle 20 and the like.
The drain path 18c has a flat surface that allows water to be guided from the region 18b to the drain port portion 18a. The casing plate 18 is arranged on the upper surface of the toilet body 2 and forms a downward slope from the rear to the front. Therefore, the water droplets receive gravity and naturally flow toward the drain port portion 18a through the drain path 18c.
Here, in FIG. 6, the flow of water (or movement of water droplets) from the region 18b below the outlet 62 toward the drain port 18a in the drain path 18c is schematically indicated by an arrow F6.

The private parts washing device 22 includes a nozzle part 20 for ejecting washing water to the private part of the human body, a control part 29 which is an electric equipment and controls the operation of the nozzle part 20, and an electric equipment which is heated to an appropriate temperature. and a heater 32 for warming a hot water cleaning tank 30 that supplies hot water to the nozzle portion 20 .
These controller 29 and heater 32 are arranged above the upper surface of the casing plate 18 with a gap therebetween in order to prevent a short-circuit accident caused by water flowing on the casing plate 18 . Due to the configuration of the toilet apparatus of this embodiment, which will be described later, water vapor condenses on electrical components such as the control unit 29 and the heater 32, or water droplets condensed on other members such as the casing cover 26 adhere to cause a short-circuit accident. occurrence is suppressed.

The cleaning water tank device will be described with reference to FIGS. 7 to 12. FIG.
7 is a top view of a flush water tank device for a toilet apparatus according to one embodiment of the present invention, FIG. 8 is a front view of the flush water tank device of FIG. 7, and FIG. 9 is taken along line IX-IX of FIG. Fig. 3 is a sectional view looking along; In FIG. 9, the full water level in the wash water tank is indicated by WL0, and the water stop water level is indicated by WL1.
The washing water tank device 24 is a so-called low-silhouette tank device having a relatively low height, and stores water to be supplied to the bowl portion 6 .
As shown in FIGS. 9 and 10, the flushing water tank device 24 includes a flushing water tank 34 that stores flushing water for flushing the toilet device 1, a water supply device 43 that supplies flushing water into the flushing water tank 34, A drain valve device 45 that supplies flush water to the toilet body 2, a float switch 50 that detects when the level of flush water in the flush water tank 34 reaches the full water level WL0, a water supply device 43, and a drain valve device 45. A control unit 51 (see FIG. 4) for controlling is provided.
The controller 51 is provided on the casing plate 18 . The controller 51 may be formed integrally with the controller 29 . The controller 51 is electrically connected to the water supply device 43 , the drain valve device 45 and the float switch 50 . The control unit 51 incorporates a CPU, a memory, and the like, and can control each device based on a predetermined control program or the like. The control unit 51 can control the water supply device 43, the water discharge valve device 45, and the float switch 50 to perform the water discharge operation and the water supply operation.

The wash water tank 34 is provided on the upper surface of the casing plate 18 and is a closed type formed so as to store the wash water to be supplied to the bowl portion 6 and to prevent the water vapor in the stored water from flowing out to the outside. is the wash water tank. A drain port 42 communicating with the water conduit 12 of the toilet body 2 is formed in the bottom surface of the flush water tank 34 , and the flush water in the flush water tank 34 is supplied from the drain port 42 to the water conduit 12 of the toilet body 2 . be.

Since the configuration of the drain valve device 45 is the same as that of a conventional drain valve device, a detailed description thereof will be omitted. , and a drain valve 55 fixed to the lower end of the overflow pipe 53 .
The overflow pipe 53 is provided inside the cleaning water tank 34 . The lower part of the overflow pipe 53 communicates with the drain port 42, and should the water level in the wash water tank 34 rise above the full water level WL0 and reach the upper end opening 53a of the overflow pipe 53, The flush water flowing in from the upper end opening 53a of the overflow pipe 53 is discharged from the drain port 42 into the water conduit 12 of the toilet body 2. As shown in FIG.
When the user operates an operation switch (not shown) or the like attached to the wall or the like to execute a predetermined washing mode of large washing or small washing, the driving device 48 of the drain valve device 45 is driven. When the overflow pipe 53 and the drain valve 55 are pulled up through the ball chain, the drain port 42 is opened for a predetermined time, and after the predetermined time has passed, the drain valve 55 is lowered to close the drain port 42. A certain amount of the flush water inside is discharged to the water conduit 12 of the toilet body 2. - 特許庁

The cleansing water tank 34 includes an inner tank 34a forming a water storage portion of the cleansing water tank, a first member 34b forming an edge portion of the upper lid of the inner tank, and an inner opening portion of the first member 34b. and a formed second member 34c. A seal structure is formed so that the water vapor in the internal space 52 is less likely to leak to the casing internal space 54 when the first member 34b and the second member 34c are attached to the inner tank 34a.
The first member 34b forms an opening 46, which is a part of the upper opening area of the inner tank 34a. The first member 34b constitutes part of the ceiling portion extending inwardly from the upper edge of the inner tank 34a. As a result, the first member 34b can be used to connect electrical components such as an electric driving device 48 (see FIGS. 9 and 10) and a float switch 50 (see FIG. 10) to the cleaning water tank 34 at the cover portion other than the opening 46. A mounting structure is formed for disposing in the outer space (the inner space of the casing cover).

The second member 34c is formed to cover the opening 46 of the first member 34b. The second member 34c completes the rest of the ceiling portion of the wash water tank 34 while attached to the first member 34b. When the first member 34 b and the second member 34 c are attached to the cleaning water tank 34 , the cleaning water tank inner space inside the cleaning water tank 34 becomes a closed space and is distinguished from the casing inner space 54 . By attaching the second member 34c together with the first member 34b, it is possible to seal the top of the washing water tank 34 so as to prevent the vapor of the water stored in the washing water tank 34 from flowing out to the outside. can.

10-12, details of a vent tube according to an embodiment of the invention will now be described. 10 is a cross-sectional view along line XX in FIG. 8, FIG. 11 is a cross-sectional view along line XI-XI in FIG. 7, and FIG. 12 is a cross-sectional view along line XII-XII in FIG. It is a cross-sectional view seen from above.
The wash water tank device 24 further comprises a vent pipe 56 extending from the inner space 52 of the wash water tank 34 to the casing inner space 54 outside the wash water tank 34 . The vent pipe 56 includes an inlet portion 58 provided in the inner space 52 of the wash water tank 34, a descending pipeline 60 extending downward from the inlet portion 58, an outlet portion 62 opened at the lower end of the descending pipeline 60, It has

An inlet portion 58 of the vent pipe 56 is located above an upper end opening 53a of the overflow pipe 53 and opens upward. The vent pipe 56 forms a structure integrated with at least the inner tank 34a, which is a standing wall structure of the water storage portion of the wash water tank 34. As shown in FIG. The vent pipe 56 is integrally formed with the inner tank 34a. The wash water tank arrangement 24 further comprises an insulating layer 64 between the downcomer line 60 and the outer wall of the wash water tank 34 . The heat insulating layer 64 is formed of an anti-dew layer made of a resin material such as expanded polystyrene and an air layer. The heat insulating layer 64 may be formed by a dew-proof layer or an air layer. When the heat insulating layer 64 is provided with the anti-dew layer and the air layer, the heat insulating property is further improved as compared with only one of them.

The first member 34b of the wash water tank 34 encloses a ceiling surface 66 above the inlet portion 58 of the vent pipe 56 and a predetermined area C extending downward from the ceiling surface 66 and directly above the inlet portion 58 via a space. A vertical wall 68 is provided. The ceiling surface 66 is surrounded by an upright wall 68 . The area of the ceiling surface 66 is larger than the opening area of the inlet portion 58 . The standing wall 68 extends downward from above the entrance portion 58 to below the entrance portion 58 .

Next, with reference to FIGS. 9, 11 and 12, the operation (function) such as the flow of water vapor when the water supply device supplies water in the washing water tank apparatus according to one embodiment of the present invention will be described.

As shown in FIG. 9, in the standby state before the drain valve device 45 starts draining water (before starting washing), the drain valve 55 of the drain valve device 45 closes the drain port 42, and the water inside the wash water tank 34 is closed. is the full water level WL0. The water supply valve 43a of the water supply device 43 is in a closed state. Next, the user operates an operation switch (not shown) or the like to drive the drive device 48 of the drain valve device 45, pull up the drain valve 55, and flush water flows from the flush water tank 34 to the toilet body 2. drained. The wash water in the wash water tank 34 is drained to the stop water level WL1 in the large wash mode.

Next, when the wash water level reaches the stop water level WL1, the control unit 51 operates the water supply device 43 to supply water to the wash water tank 34 . When washing water is supplied into the washing water tank 34 by the water supply device 43, the air in the washing water tank 34 passes through the ventilation pipe 56 by the amount of the washing water supplied by the water supply device 43 in order to realize smooth water supply. is exhausted.
At this time, it is assumed that the temperature of the outside air outside the cleaning water tank 34 is cooler than the temperature of the cleaning water inside the cleaning water tank 34, for example, in winter. Water vapor is generated from the cleaning water existing in the cleaning water tank 34 as indicated by an arrow F1. If the wash water supplied from the water supply device 43 has a higher temperature than the outside air, steam is likely to be generated from the wash water. Water vapor is lighter than air, so it rises.

In FIG. 12, as indicated by an arrow F2, water vapor mainly rises vertically from the inner tank 34a toward a predetermined area D of the area other than the predetermined area C of the second member 34c. A vent pipe 56 is arranged directly below the predetermined area C. As shown in FIG. On the other hand, the inner tank 34a is formed immediately below the predetermined region D of the regions other than the predetermined region C, and the water vapor rising from the inner tank 34a tends to rise toward the predetermined region D.

Further, as shown in FIGS. 10 to 12, the inlet portion 58 of the vent pipe 56 is open upward. Therefore, even if the water vapor rises toward the predetermined area C as indicated by the arrow F3, the inlet 58 is also opened upward, so the water vapor flows into the inlet 58 in the upward direction. It's getting harder. Therefore, it is possible to suppress the discharge of water vapor from the vent pipe 56 into the casing internal space 54 .

In addition, as shown by arrow F4 in FIG. The inlet portion 58 of the vent pipe 56 is located above the opening of the overflow pipe 53 and is opened upward. It is possible to increase the amount of water vapor exhausted to the toilet bowl body 2 from the overflow pipe 53 at the low position. The overflow pipe 53 is provided at a position lower than the inlet portion 58 and in a region near the center in the cleaning water tank 34, so that air and water vapor can easily flow out through the overflow pipe 53 during water supply, as indicated by an arrow F4. ing. Since steam easily flows out into the toilet body 2 through the overflow pipe 53, the flow of steam into the casing internal space 54 is further suppressed.

Again, as shown in FIG. 12, even if the inlet portion 58 is open upward, the ceiling surface 66 of the wash water tank 34 and the vertical wall 68 extending downward from the ceiling surface 66 are not in contact with the vent pipe 56. It is formed so as to surround a predetermined area C directly above the entrance portion 58 of the through a space. As a result, the water vapor generated in the cleaning water tank 34 and rising to the ceiling surface in, for example, a predetermined area D other than directly above the inlet portion 58 moves laterally along the ceiling surface to just above the inlet portion 58, and moves to the inlet portion. Flowing into the portion 58 is suppressed. In this way, in order for the steam that has risen to the ceiling surface in the predetermined region D to flow into the inlet portion 58, it is necessary to move around below the vertical wall 68, and the steam is more likely to flow into the inlet portion 58. Suppressed.

Further, the condensed water E1 adhering to the ceiling surface of the predetermined area D in the wash water tank 34 is prevented from moving laterally along the ceiling surface to right above the inlet portion 58 and flowing into the inlet portion 58. When the condensed water E1 moves along the ceiling surface in the direction of the inlet portion 58, the condensed water E1 reaches the lower end of the vertical wall 68. As shown in FIG. The condensed water at this time is exemplified by the condensed water E2. The condensed water E2 drips into the cleaning water tank 34 without rising along the vertical wall 68 . Since the dew condensation water E2 does not rise along the standing wall 68, it is prevented from entering the inlet portion 58. - 特許庁Therefore, the discharge of water vapor and condensed water E2 from the ventilation pipe 56 into the casing internal space 54 can be further suppressed.

As indicated by the arrow F4, even when some of the steam flows into the inlet 58, the downcomer line 60 is cooled by the outside air (it has almost the same temperature as the outside air), and the water vapor flows into the downcomer line. 60, the moisture in the water vapor condenses to produce condensed water E3. At this time, since the heat insulating layer 64 is provided between the descending pipeline 60 and the outer wall of the wash water tank 34, the heat insulating layer 64 allows the outer wall of the descending pipeline 60 and the wash water tank 34 (that is, the inside of the wash water tank 34) to be separated. temperature of the wash water) can be suppressed. As a result, it is possible to prevent the steam from flowing out of the descending pipeline 60 without condensation and/or the condensed water E3 from returning to steam again and flowing out of the descending pipeline 60 .

As indicated by an arrow F5, the condensed water E3 generated inside the descending pipeline 60 drops into a drainage path formed on the upper surface of the casing plate 18. As shown in FIG. As shown in FIG. 6, the condensed water is led from the area 18b below the outlet 62 of the vent pipe 58 to the drain port 18a by the drain path 18c, and is drained from the drain port 18a to the bowl portion 6. As shown in FIG. As a result, the dripped water droplets remain on the casing plate 18 and can be prevented from evaporating and condensing inside the casing cover 26 .

In this way, it is possible to prevent steam from being discharged from the cleaning water tank 34 through the ventilation pipe 56 into the casing internal space 54 during water supply by the water supply device 43 . When the float switch 50 detects the full water level WL0, water supply by the water supply device 43 is terminated and the system returns to the standby state.

According to the toilet device 1 according to the embodiment of the present invention described above, the water vapor generated in the flush water tank 34 is lighter than the air, and thus forms an upward flow in the flush water tank 34. An inlet portion 58 of the vent pipe 56 is open upward. Therefore, when washing water is supplied into the washing water tank 34 by the water supply device 43 and the air in the washing water tank 34 is exhausted through the ventilation pipe 56 , water vapor flows into the inlet 58 of the ventilation pipe 56 . It is possible to suppress the discharge of water vapor from the vent pipe 56 into the casing internal space 54 . Further, when washing water is supplied into the washing water tank 34 by the water supply device 43 , the air in the washing water tank 34 is also exhausted from the overflow pipe 53 . At this time, since the inlet portion 58 of the vent pipe 56 is located above the opening of the overflow pipe 53 and is opened upward, water vapor is less likely to be discharged from the vent pipe 56 and the inlet portion 58 is opened. More water vapor can be exhausted from the lower overflow pipe 53 to the toilet bowl body 2 outside the casing inner space 54 . Therefore, it is possible to suppress the discharge of water vapor from the inner space of the cleaning water tank 34 to the casing inner space 54 via the ventilation pipe 56 .

Further, according to the toilet device 1 of the present embodiment, even if the inlet portion 58 is open upward, the ceiling surface 66 of the flush water tank 34 and the standing wall 68 extending downward from the ceiling surface 66 are not communicated with each other. It is formed so as to surround a predetermined area directly above the inlet portion 58 of the trachea 56 with a space therebetween. As a result, the water vapor generated in the cleaning water tank 34 and rising to the ceiling surface in a region other than directly above the inlet portion 58 moves laterally along the ceiling surface to just above the inlet portion 58 and reaches the inlet portion 58. Inflow is suppressed. Furthermore, the condensed water adhering to the ceiling surface in the region other than the area directly above the inlet portion 58 in the wash water tank 34 moves laterally along the ceiling surface to just above the inlet portion 58 and flows into the inlet portion 58. is suppressed. Therefore, the discharge of steam and condensed water from the ventilation pipe 56 into the casing internal space 54 can be further suppressed.

Furthermore, according to the toilet device 1 of the present embodiment, in order for the water vapor generated in the flush water tank 34 and rising to the ceiling surface in a region other than directly above the inlet portion 58 to flow into the inlet portion 58, the standing wall It becomes necessary to move around below 68, and the flow of water vapor into the inlet portion 58 is further suppressed. Also, even if the inlet 58 is open upward, if the condensed water adhering to areas other than directly above the inlet 58 of the cleaning water tank 34 flows down along the inner surface of the cleaning water tank 34 Since the vertical wall 68 extends below the inlet portion 58 of the vent pipe 56, the condensed water is guided below the inlet portion 58 along the vertical wall 68 arranged with a space between the inlet portion 58 and the vertical wall 68. Therefore, the flow of condensed water into the inlet portion 58 is further suppressed. Therefore, it is possible to further suppress the discharge of water vapor and condensed water from the ventilation pipe 56 into the casing internal space 54 .

Further, according to the toilet device 1 according to the present embodiment, the vent pipe 56 forms a structure integral with the vertical wall 68 structure of the water storage portion of the wash water tank 34 , so the vent pipe 56 is located inside the wash water tank 34 . In the space, the structure provided with the inlet portion 58 located above the opening of the overflow pipe 53 and opening upward can be realized relatively compactly. If the separate vent pipe 56 were to be retrofitted to the washing water tank 34 at the position and opening direction as described above, the structure of the washing water tank 34 apparatus would be enlarged. According to the configuration of this embodiment, it is possible to prevent the structure of the washing water tank 34 device having the vent pipe 56 from increasing in size.

Further, according to the toilet device 1 according to the present embodiment, the thermal insulation layer 64 can suppress heat exchange between the descending pipeline 60 and the outer wall of the flush water tank 34 . As a result, it is possible to prevent the steam from flowing out of the descending pipeline 60 without condensation and/or the condensed water from reverting to steam and flowing out of the descending pipeline 60 .

Further, according to the toilet device 1 of this embodiment, the condensed water condensed in the descending pipeline 60 of the ventilation pipe 56 falls into the drainage path 18c formed on the upper surface of the casing plate 18, and flows through the drainage path 18c to the ventilation pipe 56. from the area below the outlet portion 62 to the drain port portion 18a, and drained from the drain port portion 18a to the bowl portion 6. As shown in FIG. As a result, the dripped water droplets remain on the casing plate 18, and it is possible to prevent the water droplets from evaporating and condensing inside the casing.

1 toilet device 2 toilet body 6 bowl portion 18 casing plate 18a drain port portion 18b area 18c drainage path 22 private cleaning device 24 cleaning water tank device 26 casing cover 34 cleaning water tank 34a inner tank 34b first member 34c second member 42 drainage Port 43 Water supply device 52 Internal space 54 Casing internal space 56 Ventilation pipe 58 Inlet 60 Descending pipe 62 Outlet 64 Thermal insulation layer 66 Ceiling surface 68 Standing wall W Water level WL0 Full water level

Claims (6)

A toilet device that cleans with wash water and discharges waste,
a toilet body having a bowl portion for receiving waste;
a plate provided on the rear upper surface of the toilet body;
a private cleaning device provided on the upper surface of the plate;
a closed wash water tank provided on the upper surface of the plate and configured to store wash water to be supplied to the bowl portion and to prevent the stored water vapor from flowing out to the outside;
a casing for housing the private washing device and the washing water tank therein;
a water supply device for supplying wash water into the wash water tank;
an overflow section provided inside the flush water tank for discharging flush water exceeding a full water level of the flush water tank to the toilet body;
a vent pipe extending from the inner space of the wash water tank to the inner space of the casing outside the wash water tank;
the vent pipe includes an inlet provided in the internal space of the wash water tank, a descending pipeline extending downward from the inlet, and an outlet opening at a lower end of the descending pipeline;
The toilet apparatus according to claim 1, wherein the inlet portion of the vent pipe is located above the opening of the overflow portion and opens upward. The washing water tank includes a ceiling surface above the inlet of the ventilation pipe, and an upright wall extending downward from the ceiling and surrounding a predetermined area directly above the inlet with a space therebetween. 2. The toilet apparatus of claim 1, wherein a 3. The toilet apparatus according to claim 2, wherein said standing wall of said flush water tank extends below said inlet of said ventilation pipe. 4. The toilet apparatus according to any one of claims 1 to 3, wherein said vent pipe forms a structure integral with at least a standing wall structure of a water storage portion of said flush water tank. 5. A toilet apparatus according to any preceding claim, further comprising an insulating layer between the downcomer line and the outer wall of the flush water tank. The plate includes a drain port portion for draining water droplets from the top surface of the plate to the bowl portion, and a drain port portion formed on the top surface of the plate and extending from a region below the outlet portion of the vent pipe to the drain port portion, 6. The toilet apparatus according to any one of claims 1 to 5, further comprising: a drainage path formed to guide water droplets dropped from the ventilation pipe to the drainage port.

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