A flush toilet that can be converted to a portable toilet.

Abstract

The aim is to provide toilets that can be used as regular flush toilets during normal times and can be converted into portable toilets during disasters. [Solution] The toilet has a toilet room equipped with a toilet bowl and a processing room located below the toilet room. The processing room has sewer piping connected to the sewer system, and the sewer piping has a sewer valve that can be opened and closed. Under normal circumstances, the sewer valve is in the open position, and in the event of a water outage, the sewer valve is closed, and the processing room becomes a septic tank.

Description

Technical Field

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[0001] The present invention relates to a toilet that can be used as a flushing toilet in normal times and can be used as a simple toilet during disasters or the like.

Background Art

[0002] During disasters such as earthquakes, when water supply is cut off or power is out, a normal flushing toilet that uses 3 to 5 liters of water for flushing cannot be used. In such cases, a simple toilet that drains feces and the like with a small amount of water is installed for response, but there are geographical and time limitations for the installation of the simple toilet.

[0003] For example, Patent Document 1 discloses a technique of pumping natural water from a river or a marsh during water cut-off and supplying water to a flushing toilet. However, there are many cases where there are no rivers or marshes in the vicinity, and moreover, when power is cut off due to an earthquake or the like, the water supply pump cannot be used.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a toilet that can be used as a normal flushing toilet in normal times and can be switched to a simple toilet during disasters.

Means for Solving the Problems

[0006] The flush toilet convertible to a simple toilet according to the present invention comprises a toilet room equipped with a toilet bowl and a treatment room located below the toilet room, wherein the treatment room has sewer piping connected to a sewer system, and the sewer piping has an openable and closable sewer valve, which is normally in the open position, and in the event of a water outage, the sewer valve is closed, and the treatment room becomes a septic tank.

[0007] In this type of toilet configuration, a small amount of water (100-200 ml) is poured into the toilet bowl, causing feces and other waste to be dropped into the treatment chamber through the toilet's drain. Under normal circumstances, the feces and other waste dropped into the treatment chamber are flushed into the sewer system with flush water. In the event of a water outage, the sewer valve closes, and the feces and other waste dropped into the treatment chamber are stored there.

[0008] When used as a portable toilet that flushes away feces with a small amount of water, the processing chamber becomes a septic tank, which may cause odors to flow back into the toilet room. Therefore, in the present invention, it is preferable that the toilet has a flapper valve at the outlet to prevent odors from flowing back into the toilet room. Furthermore, it is preferable that the flapper valve opens with a small amount of water, such as 100-200 ml. [Effects of the Invention]

[0009] In this invention, a treatment chamber is provided on the underside of the toilet bowl, and a small amount of water can be used to discharge waste into this treatment chamber through an outlet located at the bottom of the toilet bowl. Under normal circumstances, the waste discharged into the treatment chamber can be flushed into the sewer system with the usual amount of water, 3 to 5 liters. In the event of water outages or power outages during disasters, it can be switched to a portable toilet that uses 100-200 ml of water to be dropped into the septic tank through the toilet bowl's drain. [Brief explanation of the drawing]

[0010] [Figure 1] An example of the configuration of the toilet according to the present invention is shown. (a) is a structural diagram, and (b) is a cross-sectional end view of the bottom along line AA. [Figure 2] (a) shows the area around the toilet outlet and the flapper valve, and (b) shows the flapper valve in the closed position. [Modes for carrying out the invention]

[0011] An example of the toilet configuration according to the present invention will be described below with reference to the figures. The toilet according to the present invention can be used as a normal flush toilet during normal times, so it may be installed in ordinary houses, and is even more effective when installed in public facilities that serve as evacuation centers during disasters.

[0012] Figure 1 schematically shows a cross-section of a toilet. A toilet bowl 11 is installed inside the toilet room 10, and a sealed treatment room 20 is provided beneath it, beneath the floor of the toilet room 10. The toilet bowl 11 has a bowl section 12 and a discharge port 13 on its bottom side. The discharge port 13 has a flapper valve 14 that is biased in the closing direction, and by simply pouring a small amount of water, 100 to 200 ml, into the bowl section 12, feces and other waste can be dropped into the processing chamber 20.

[0013] The treatment room 20 is connected to the sewer system via sewer piping 23, which has an open / close type sewer valve V5. Under normal circumstances, this sewer valve V5 is open, and the feces and other waste dropped into the treatment chamber 20 are flushed into the sewer system by the flushing water 1. In this embodiment, the bottom 22 of the treatment chamber 20 is sloped downward toward the sewer pipe 23 so that waste can easily flow toward the sewer. As shown in the cross-sectional end view of line AA in Figure 1(b), the bottom structure has a roughly V-shaped cross-section consisting of a sloped portion 22a and a bottom 22b. The purpose of this structure is to allow feces and other waste to be easily flushed away with the water, and it is not limited to a V-shape; a U-shape, semicircle, etc., are also acceptable.

[0014] In the event of a disaster or other emergency that causes a water outage, the V5 sewer valve is designed to close manually or automatically. For example, the sewage valve V5 may be a solenoid valve and may be configured to be in a closed state during water cut-off or power failure. When the sewage valve V5 is in a closed state, the interior of the treatment chamber 20 functions as a sealed toilet bowl 21.

[0015] Next, an example of a water supply structure will be described. There is a piping system that directly supplies water as washing water 1 to the bottom of the treatment chamber through a first washing valve V1 and a second washing valve V2 that are open / closed controlled from the main pipe 30 through piping such as tap water. In this case, the tank water supply valve V3 of the tank piping 31 branched from the main pipe 30 is opened to supply water to the tank 14, and water may be supplied as washing water 1 via the second washing valve V2 in a general washing water supply method such as a lever handle and float valve type that is generally adopted. In this case, the first washing valve V1 is closed and the second washing valve V2 is opened.

[0016] On the other hand, a small amount of 100 to 200 ml of simple washing water 2 flows into the bowl portion 12 of the toilet 11 via a simple washing valve V4. In this case, the simple washing valve V4 can be directly piped and connected to the main pipe 30 so that a predetermined amount of water automatically flows. Also, the simple washing valve V4 is for flowing a small amount of simple washing water 2 and may be piped to the tank 14 as shown in FIG. 1. Alternatively, the simple washing valve V4 may be provided in the tank 15 in a float valve type. In addition, when this simple washing water 2 cannot be used due to reasons such as the water in the tank 15 running out during water cut-off, etc., it can also be used as simple washing water 2 with a cup, a PET bottle, etc. Also, when the amount in the toilet bowl 21 increases, it can be pumped out from the pumping port 20a.

[0017] Note that when using the treatment chamber 20 as a toilet bowl 21 during water cut-off, etc., it is necessary to prevent the odor from flowing back into the toilet room 10. Therefore, in the present invention, a flapper valve 14 is provided to open and close the discharge port 13 located on the bottom side of the bowl portion 12. The flapper valve 14 is weakly biased in the closing direction at its open end, with the mounting portion 14a as the pivot point. When a small amount of flushing water, 100-200 ml, is poured in, it opens due to its own weight along with the feces, etc. In this embodiment, as shown in Figure 2, a silicone seal 13a is attached to the opening end of the outlet 13, and the flapper valve 14 is also made of silicone. This improves the airtight seal when the door is closed. Furthermore, thin, small magnets 13b and 14b may be incorporated into the silicone seal 13a and the flapper valve 14 to improve adhesion through mutual magnetic force. [Explanation of symbols]

[0018] 1 Rinse water 2. Portable toilets 10 Toilet room 11 Toilet 12 Bowl section 13 Outlet 14. Flapper valve 15 tanks 20 Processing Rooms 21 Toilet tank 22 Bottom 23 Sewer piping 30 main pipes 31 Tank Piping V1 No. 1 flush valve V2 Second Water Flush Valve V3 Tank Water Inlet Valve V4 Simple Flush Valve V5 Sewer Valve

Claims

1. It has a toilet room equipped with a toilet bowl and a processing room located below the toilet room, The aforementioned treatment room has sewer piping connected to the sewer system. The aforementioned sewer pipe has a sewer valve that can be opened and closed, A flush toilet that can be switched to a simple toilet, characterized in that the sewer valve is open under normal conditions, and closes during a water outage, with the treatment chamber becoming a septic tank.

2. The toilet bowl is a flush toilet that can be converted to a simple toilet according to claim 1, characterized in that it has a flapper valve at the outlet to prevent odors from flowing back into the toilet room.

3. A flush toilet that can be switched to the simple toilet described in claim 2, characterized in that the flapper valve opens with a small amount of water, 100 to 200 ml.

4. The aforementioned toilet is used to flush a small amount of water, 100 to 200 ml, through the toilet bowl, causing feces and other waste to be dropped into the processing chamber through the toilet bowl's drain. Under normal circumstances, the feces and other waste placed in the aforementioned processing room are flushed into the sewer system with flush water. A flush toilet that can be switched to a simple toilet according to any one of 1 to 3, characterized in that when the water supply is cut off, the sewer valve is closed and the feces etc. dropped into the treatment chamber are stored in the treatment chamber.

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