JP7254269B2 - flush toilet device - Google Patents

Description

The present invention relates to a flush toilet device.

In general, the flush toilet device pours the necessary amount of flushing water (approximately 6 to 12 liters) from the tank into the bowl after defecation. are being transported to the drainage pipes. However, in an emergency such as a disaster, lifelines such as water supply, sewerage and electricity may be interrupted. In such a case, it can be easily estimated that the cleaning water will not be supplied to the tank. Therefore, since water is transported and used from another water source, it becomes difficult to wash the toilet bowl multiple times.

As a toilet device that can be used even in the event of such a disaster, for example, Patent Document 1 discloses that a drainage pipe connected to a storage tank for storing sewage and a drainage pipe connected to a sewage system are provided in the discharge part of the toilet bowl. are branched and connected to each other so that the waste water from the toilet is normally discharged to the sewage system, and in an emergency the waste water is discharged to a storage tank. In the toilet bowl device described in Patent Document 1, the flapper valve opens and closes the discharge portion of the toilet bowl, and the use of such a flapper valve enables waste to be discharged with a small amount of flushing water.

Further, for example, Patent Document 2 describes a flush toilet device having a drain trap, in which an open/close valve is provided at the bottom of the trap flow path, and normally the open/close valve is closed to discharge waste through the trap flow path. , an apparatus is disclosed in which, in an emergency, an on-off valve is opened to discharge waste into a waste tank provided below the on-off valve. According to the toilet device described in Patent Document 2, in an emergency, the waste can be discharged from the bottom of the trap channel through the on-off valve into the waste tank, so that the waste can be discharged with a small amount of washing water.

JP 2017-57649 A Japanese Unexamined Patent Application Publication No. 2011-21472

However, the toilet device described in Patent Document 1 uses a flapper valve to discharge waste even during normal use, so the structural members are likely to deteriorate over time, and durability is not sufficient. In addition, in a structure using a flapper valve, backflow of odor from the drainage pipe is likely to occur at the time of discharge, and sanitary pests in the drainage pipe are likely to enter the toilet.

In addition, in the toilet bowl device described in Patent Document 2, since the on-off valve is provided at the bottom of the trap flow path within the user's field of vision, it does not look like a general flush toilet, and the aesthetic appearance deteriorates. In addition, it is necessary to provide a waste tank under the on-off valve, and a new dedicated facility must be provided.

The present invention has been made in view of the above problems, and its object is to provide a small amount of washing water in an emergency without using a flapper valve during normal use and without providing an on-off valve at the bottom of the trap channel. To provide a toilet bowl device capable of discharging sewage with

The flush toilet device of the present invention includes a bowl portion having a discharge port formed at the bottom thereof, and a first descending pipeline, an ascending pipeline, and a second descending pipeline provided continuously with the discharge port of the bowl portion. and a drain trap channel having a bypass channel connecting the ascending pipeline and the second descending pipeline and capable of discharging sewage by head pressure. .

According to the present invention having the above configuration, the sewage can be discharged through the trap channel in normal times, and the sewage can be discharged through the bypass channel by the head pressure of the accumulated water in an emergency. Therefore, in an emergency, the sewage is discharged without going over the top between the first descending pipeline and the ascending pipeline, so that the sewage can be discharged with the minimum amount of washing water that can hold water. can. In addition, since the trap channel is normally used, backflow of odor can be prevented, and furthermore, sufficient durability can be ensured because the flapper valve is not used. In addition, since the bypass flow path is connected to the ascending pipeline, the on-off valve is not visually recognized by the user, and deterioration of aesthetic appearance can be prevented. Furthermore, since sewage is discharged into the sewage system through the bypass channel, there is no need to install new equipment such as a waste tank.

In the present invention, preferably, a switching valve provided in the bypass channel is provided, and the switching valve has a normal mode in which the sewage is discharged through the drain trap channel, an emergency mode in which the sewage is discharged through the bypass channel, switch.

According to the present invention having the above configuration, the switching valve switches between the normal mode in which the sewage is discharged through the drain trap channel and the emergency mode in which the sewage is discharged through the bypass channel. can be minimized and the amount of washing water required can be reduced.

In the present invention, preferably, a flapper valve provided at the downstream end of the second downcomer line and a tank lever for operating the supply of wash water from the wash water tank to the bowl portion are provided, and in the normal mode The flapper valve is open and can be opened and closed by the tank lever in emergency mode.

According to the present invention having the above configuration, since the flapper valve is not used in normal times, deterioration of the flapper valve over time can be prevented, and the flapper valve can be reliably operated in an emergency. Furthermore, in an emergency, the flapper valve can be opened and closed by operating the tank lever to drain water, so the user can drain water with the same feeling as during normal use.

In the present invention, preferably, the bypass channel is provided so as to communicate between the upstream end of the ascending pipeline and the portion upstream of the downstream end of the second descending pipeline.
According to the present invention having the above configuration, the bypass channel can bypass between the drainage trap channels in a short distance, and the amount of accumulated water can be reduced.

In the present invention, the bypass channel is preferably closed at the upstream end and the downstream end respectively in the normal mode in which the sewage is discharged through the drain trap channel.
According to the present invention having the above configuration, it is possible to prevent wash water from flowing into the bypass channel during normal use, and prevent deterioration in drainage performance.

In the present invention, the bypass channel is preferably formed so as to be horizontal or downwardly inclined toward the downstream side.
According to the present invention configured as described above, it is possible to reliably discharge the dirty water by the head pressure.

According to the present invention, it is possible to provide a toilet device that can discharge waste with a small amount of flush water in an emergency without using a flapper valve during normal use and without providing an on-off valve at the bottom of the trap channel. can.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram showing the configuration of a flush toilet device according to one embodiment of the present invention, FIG. 1 showing a normal mode; FIG. 2 is a configuration diagram showing the configuration of a flush toilet device according to one embodiment of the present invention, and FIG. 2 shows an emergency mode;

Hereinafter, one embodiment of the flush toilet device of the present invention will be described in detail with reference to the drawings.
1 and 2 are configuration diagrams showing the configuration of a flush toilet device according to an embodiment of the present invention, FIG. 1 showing a normal mode and FIG. 2 showing an emergency mode. As used herein, the term "emergency mode" refers to a state in which a small amount of cleansing water is used when the supply of cleansing water is not sufficient due to, for example, a water outage. A state in which a sufficient amount of washing water is supplied.

As shown in FIGS. 1 and 2 , the flush toilet device 1 has a toilet body 2 , a flush water tank 4 , a tank lever 10 and a switching device 12 .
The washing water tank 4 internally stores washing water supplied from the outside. The capacity of the wash water tank 4 is larger than the amount of dirty water that can be discharged from the bowl portion 6 through the drain trap channel 8 . The flush water tank 4 has a supply valve 4A, and a flush water supply pipe line 4B for supplying the flush water in the flush water tank 4 to the toilet body 2 is connected to the supply valve 4A. The supply valve 4A opens and closes according to the operation of the tank lever 10, and can supply a predetermined amount of flush water from the flush water tank 4 to the toilet body 2. As shown in FIG. In addition, the supply valve 4A can switch between the normal mode and the emergency mode by operating the switching device 12 as described later. A predetermined amount of cleansing water is discharged from the flushing water tank 4, and in an emergency mode, a small predetermined amount of cleansing water capable of draining the dirty water in the toilet body 2 is discharged from the flushing water tank 4 through the bypass flow path 14. Discharge.

The toilet bowl main body 2 includes a bowl portion 6 having an outlet 6A formed at the bottom thereof, and a drainage trap channel 8 provided continuously with the outlet 6A. A wash water discharge port 6B is formed on the inner surface of the upper portion of the bowl portion 6, and a wash water supply pipe line 4B extending from the wash water tank 4 is connected to the wash water discharge port 6B.

The drain trap channel 8 is provided continuously with the discharge port 6A of the bowl portion 6, and includes a first descending line 8A continuing to the discharge port 6A and an ascending line 8B continuing to the first descending line 8A. and a second descending pipeline 8C continuous with the ascending pipeline 8B. The first descending pipeline 8A is formed so as to slope downward from the discharge port 6A toward the downstream side, and is flat at the downstream end. The ascending pipeline 8B is formed so as to have an upward slope toward the downstream. The second descending pipeline 8C is formed to extend vertically downward toward the downstream. A downstream end of the drainage trap channel 8 is connected to a sewage pipe 18 by a connecting member 16 . A flapper valve 22 is provided at the downstream end of the drainage trap channel 8 . By opening and closing the flapper valve 22, the downstream end of the drain trap channel 8 can be opened or closed.

Further, a bypass channel 14 is provided in the toilet body 2 . The bypass channel 14 is provided so as to connect between the ascending channel 8B of the drainage trap channel 8 and the second descending channel 8C. In this embodiment, the bypass channel 14 is provided so as to connect the upstream end of the ascending pipeline 8B and the portion upstream of the downstream end of the second descending pipeline 8C. The bypass channel 14 is formed so as to slope downward toward the downstream. In addition, although the bypass channel 14 does not necessarily have to have a downward slope, it is preferably horizontal or has a downward slope.

An upstream switching valve 20A and a downstream switching valve 20b are provided at the upstream end 14A and the downstream end 14B of the bypass channel 14, respectively. By opening and closing the upstream switching valve 20A and the downstream switching valve 20b, the upstream end portion 14A and the downstream end portion 14B of the bypass channel 14 can be opened or closed, respectively.

The switching device 12 connects the supply valve 4A of the wash water tank 4, the upstream switching valve 20A and the downstream switching valve 20b, and the flapper valve 22 so as to be switchable between a normal mode and an emergency mode.
Specifically, when the switching device 12 is set to the normal mode, the switching device 12 switches the supply valve 4A of the flush water tank 4 to a position where the sewage in the toilet body 2 can be discharged through the drainage trap channel 8. The state is switched to discharge a fixed amount of washing water from the washing water tank 4. - 特許庁Also, the upstream switching valve 20A and the downstream switching valve 20b are switched to a state in which the upstream end portion 14A and the downstream end portion 14B of the bypass passage 14 are closed. Also, the flapper valve 22 is switched to a state in which it is opened regardless of the operation of the tank lever 10. - 特許庁

Further, when the switching device 12 is set to the emergency mode, the switching device 12 turns the supply valve 4A of the flush water tank 4 to a predetermined amount capable of discharging the sewage in the toilet body 2 via the bypass passage 14. The washing water is switched to a state in which the washing water is discharged from the washing water tank 4.例文帳に追加Also, the upstream switching valve 20A and the downstream switching valve 20b are switched to open the upstream end portion 14A and the downstream end portion 14B of the bypass passage 14 . Also, the flapper valve 22 is switched to a state in which it is opened and closed in conjunction with the operation of the tank lever 10 .

In this embodiment, a switching device 12 is provided, and the switching device 12 switches the supply valve 4A of the wash water tank 4, the upstream switching valve 20A and the downstream switching valve 20b, and the flapper valve 22 between the normal mode and the emergency mode. However, the present invention is not limited to this, and the supply valve 4A, the upstream switching valve 20A and the downstream switching valve 20b, and the flapper valve 22 are individually switched between the normal mode and the emergency mode. may

The operation of the flush toilet device 1 in a normal state in which flush water is sufficiently supplied will be described below.
Normally, the switching device 12 is set to the normal mode. As a result, as shown in FIG. 1, the upstream switching valve 20A and the downstream switching valve 20b close the upstream end 14A and the downstream end 14B of the bypass channel 14, and the bypass channel 14 is discharged. It is isolated from the trap channel 8 . Also, the flapper valve 22 is opened without being operated by the tank lever 10 . Also, the supply valve 4A of the flush water tank 4 discharges a predetermined amount of flush water from the flush water tank 4 through the drain trap flow path 8 so that the dirty water in the toilet body 2 can be discharged.

As shown in FIG. 1, in the normal mode, normally (when not in use), the sealing water W1 is present in the drainage trap flow path 8 up to the height of the upper end of the rising pipe 8B. Therefore, even if the flapper valve 22 is in an open state, backflow of odor from the sewage pipe 18 and invasion of sanitary pests into the toilet are prevented.

When the user operates the tank lever 10 after defecation, flush water is supplied from the flush water tank 4 into the bowl portion 6 of the toilet body 2 in response. The amount of flush water supplied from the flush water tank 4 is an amount (for example, 6 to 12 liters) that can drain the dirty water in the toilet body 2 through the drain trap flow path 8. Wastewater is discharged through the drain trap channel 8 to the sewage pipe 18 . Then, the washing water tank 4 is newly supplied with the same amount of washing water as discharged to the bowl portion 6 from the outside. At this time, since the upstream switching valve 20A and the downstream switching valve 20b close the upstream end 14A and the downstream end 14B of the bypass channel 14, sewage does not flow into the bypass channel 14.

Next, the operation of the flush toilet device 1 in a state in which flush water is not sufficiently supplied will be described.
In an emergency, the switching device 12 is set to the emergency mode. As a result, as shown in FIG. 2, the upstream switching valve 20A and the downstream switching valve 20b are opened, and the bypass passage 14 communicates between the ascending pipeline 8B and the second descending pipeline 8C. Also, the flapper valve 22 is opened and closed according to the operation of the tank lever 10 . In addition, the supply valve 4A of the wash water tank 4 is in a state of discharging a small amount of wash water from the wash water tank 4 through which the dirty water can be discharged through the bypass flow path 14 .

As shown in FIG. 2, in the emergency mode, the flapper valve 22 normally (when not in use) closes the downstream end of the drain trap flow path 8 . Therefore, accumulated water W2 exists up to a predetermined height in the drainage trap channel 8 and the bypass channel 14 . The amount of the accumulated water W2 at all times is equal to or greater than the amount that can discharge sewage including faeces to the sewage pipe 18 via the bypass flow passage 14 by the head pressure, and is preferably the bowl portion of the first downcomer pipe 8A. The amount is such that the pooled water W2 exists up to the vicinity of the discharge port 6A of No. 6 (for example, about 0.5 liter to 1.5 liter). The pooled water surface W2 can also be increased by charging cleaning water from another water source. Since the flapper valve 22 normally closes the second descending pipeline 8C, the reverse flow of odor from the sewage pipe 18 and the invasion of sanitary pests into the toilet are prevented.

When the user defecates, the feces drop from the outlet 6A of the bowl portion 6 into the pooled water W2. Then, when the user operates the tank lever 10, the flapper valve 22 is opened, and the head pressure of the pooled water W2 discharges the dirty water containing faeces in the pooled water W2 to the sewage pipe 18 through the bypass channel 14. . After the accumulated water W2 is discharged, when the flapper valve 22 is closed, the washing water is discharged from the washing water tank 4 until the water surface of the accumulated water W2 reaches a predetermined height in the drain trap channel 8 and the bypass channel 14 again. is supplied to the toilet body 2 . When water supply from the outside is possible, the flush water tank 4 is newly supplied with the same amount of flush water as that discharged to the toilet body 2 from the outside. If the water supply function as infrastructure is not maintained, measures such as users and administrators supplying separately stored water are also included.

As described above, according to this embodiment, the following effects are achieved.
In this embodiment, a bypass channel 14 is provided that connects the ascending pipeline 8B and the second descending pipeline 8C of the drainage trap channel 8 and is capable of discharging sewage by head pressure. As a result, the sewage can be discharged through the drain trap channel 8 in normal times, and the sewage can be discharged through the bypass channel 14 by the head pressure of the accumulated water in an emergency. Therefore, in an emergency, dirty water is discharged to the sewage pipe 18 without passing over the top between the first descending pipeline 8A and the ascending pipeline 8B. , can discharge sewage. In addition, since the drainage trap channel 8 is normally used, backflow of odor can be prevented. Moreover, since the flapper valve 22 is not normally used, sufficient durability can be ensured. In addition, since the bypass flow path 14 is connected to the ascending pipeline 8B, the upstream switching valve 20A is not visually recognized by the user, thereby preventing deterioration of the appearance. Furthermore, since the sewage is discharged to the sewage through the bypass channel 14, there is no need to provide new equipment such as a waste tank.

Further, in the present embodiment, an upstream switching valve 20A and a downstream switching valve 20b provided in the bypass channel 14 are provided. Mode and an emergency mode in which waste water is discharged through the bypass channel 14 can be switched. As a result, the flow path length of the bypass flow path 14 can be minimized, and the necessary amount of washing water can be reduced.

In addition, in this embodiment, a flapper valve 22 provided at the downstream end of the second descending pipeline 8C and a tank lever 10 for operating the supply of wash water from the wash water tank 4 to the bowl portion 6 are provided. The flapper valve 22 is opened in the normal mode, and can be opened and closed by the tank lever 10 in the emergency mode. As a result, since the flapper valve 22 is not normally used, deterioration over time of the flapper valve 22 can be prevented, and the flapper valve 22 can be reliably operated in an emergency. Furthermore, in an emergency, the flapper valve 22 can be opened and closed by operating the tank lever 10 to drain the water.

Further, in the present embodiment, the bypass flow path 14 is provided so as to communicate the upstream end of the ascending pipeline 8B and the portion upstream of the downstream end of the second descending pipeline 8C. As a result, the bypass channel 14 can bypass the drainage trap channel 8 in a short distance, and the amount of accumulated water can be reduced.

Further, in the present embodiment, in the normal mode in which sewage is discharged through the drain trap channel 8, the bypass channel 14 is closed at both the upstream end and the downstream end. As a result, the washing water is prevented from flowing into the bypass channel 14 during normal use, and a decrease in drainage performance can be prevented.

Moreover, in this embodiment, the bypass channel 14 is formed so as to slope downward toward the downstream side. As a result, the dirty water can be reliably discharged by the head pressure.

1 flush toilet device 2 toilet body 4 flush water tank 4A supply valve 4B flush water supply pipe line 6 bowl portion 6A outlet 6B flush water outlet 8 drain trap flow path 8A first descending pipeline 8B ascending pipeline 8C second Descending pipeline 10 Tank lever 12 Switching device 14 Bypass channel 14A Upstream end 14B Downstream end 16 Connecting member 18 Sewage pipe 20A Upstream switching valve 20b Downstream switching valve 22 Flapper valve W1 Sealed water W2 Accumulated water

Claims (5)

a bowl portion having a discharge port formed at the bottom;
A flush toilet device comprising: a drain trap channel continuously provided to the outlet of the bowl portion and having a first descending conduit, an ascending conduit, and a second descending conduit,
A bypass flow path connecting the ascending pipeline and the second descending pipeline and capable of discharging sewage by head pressure ,
A switching valve provided in the bypass flow path,
The switching valve has a normal mode in which the dirty water is discharged through the drain trap channel, and a normal mode in which the dirty water is discharged.
A flush toilet device characterized by switching between an emergency mode in which water is discharged through the bypass channel and an emergency mode . a flapper valve provided at the downstream end of the second downcomer line;
a tank lever for operating the supply of wash water from the wash water tank to the bowl,
The flapper valve is open in the normal mode,
The flapper valve can be opened and closed by a tank lever in the emergency mode,
The flush toilet device according to claim 1 . The bypass channel communicates the upstream end of the ascending channel with a portion upstream of the downstream end of the second descending channel so that the bypass channel is horizontal or has a downward slope. is provided as
The flush toilet device according to claim 1 or 2 . In a normal mode in which the sewage is discharged through the drain trap channel,
the bypass channel is closed at an upstream end and a downstream end, respectively;
The flush toilet device according to any one of claims 1 to 3 . The bypass channel is formed so as to be horizontal or downwardly inclined toward the downstream,
The flush toilet device according to any one of claims 1 to 4 .

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