Temporary toilets

Abstract

We provide temporary toilets that can be used for an extended period. [Solution] The temporary toilet 1 comprises a toilet bowl 10, a wastewater tank 20 for storing wastewater discharged from the toilet bowl 10, and an external wastewater tank 30 that is detachably connected to the wastewater tank 20 and stores wastewater discharged from the wastewater tank 20. The wastewater tank 20 and the external wastewater tank 30 are detachably connected by a drain pipe 40. The wastewater tank 20 is positioned higher than the external wastewater tank 30, and the difference in height is used to move wastewater from the wastewater tank 20 to the external wastewater tank 30.

Description

Technical Field

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[0001] The present invention relates to a temporary toilet that can be preferably used in disaster areas and the like.

Background Art

[0002] Japan is a country with disasters as frequent as no other in the world. Due to global warming in recent years, abnormal weather has occurred across the country, including earthquakes, tsunamis, typhoons, river breaches, etc., and unexpected disasters have occurred. During disasters, hundreds of evacuees gather in evacuation shelters. The first thing needed during a disaster is a toilet. However, toilets are rarely prepared from the beginning, and what is often prepared are those with absorbent mats laid on the seats or temporary toilets using manhole holes. Even when collecting temporary toilets after a disaster, it is difficult for the disaster victims to collect and install temporary toilets by themselves in the disaster area. Furthermore, even when a temporary toilet is installed, the temporary toilet generally has a structure in which a sewage tank is provided under the toilet seat (see Patent Document 1), and there is a problem that it cannot be used immediately because the capacity of the sewage tank is small.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present invention has been made based on such problems, and an object thereof is to provide a temporary toilet that can extend the usage period.

Means for Solving the Problems

[0005] The temporary toilet of the present invention comprises a toilet bowl, a wastewater tank for storing wastewater discharged from the toilet bowl, and an external wastewater tank that is detachable and connected to the wastewater tank for storing wastewater discharged from the wastewater tank. [Effects of the Invention]

[0006] According to the present invention, since an external wastewater tank is provided to store wastewater discharged from the wastewater tank, the amount of wastewater that can be stored can be increased by moving the wastewater from the wastewater tank. Therefore, the period of use of the temporary toilet can be extended, and it can also be used in situations where many people use it, such as during a disaster.

[0007] Furthermore, by connecting the wastewater tank and the external wastewater tank with a drain pipe, providing a detachable outlet for the drain pipe in the wastewater tank, and providing a detachable inlet for the drain pipe in the external wastewater tank, the system can be connected when in use and disassembled for storage. This reduces the storage space required and makes it easier to prepare for disasters. Also, for example, if the external wastewater tank does not need to be used under normal circumstances, the drain pipe can be removed from the wastewater tank and a cap or similar device can be attached to the outlet for use.

[0008] Furthermore, by providing a recess for the discharge port in the wastewater tank and positioning the discharge port so that it does not protrude from the recess, the discharge port will not take up space during storage, and damage to the discharge port due to contact with other objects can be prevented.

[0009] In addition, if the external wastewater tank can be reduced in size through deformation, it can be reduced in size for storage, making it easier to store in a smaller space.

[0010] Furthermore, by connecting multiple external wastewater tanks, the amount of wastewater that can be stored can be increased even further.

[0011] Furthermore, by positioning the wastewater tank higher than the external wastewater tank and utilizing the difference in elevation to move wastewater from the wastewater tank to the external wastewater tank, the structure can be simplified and the system can be easily used. [Brief explanation of the drawing]

[0012] [Figure 1] This is a partial cross-sectional view showing the configuration of a temporary toilet according to one embodiment of the present invention, as seen from the front. [Figure 2] This is a partial cross-sectional view showing the configuration of the temporary toilet shown in Figure 1, viewed from the side. [Figure 3] This is a partial cross-sectional view showing the configuration of the temporary toilet shown in Figure 1, viewed from the rear. [Figure 4] This diagram shows a magnified view of the outlet configuration shown in Figure 1. [Figure 5] This is another diagram showing a magnified view of the outlet configuration shown in Figure 1. [Figure 6] This is a magnified view of the inlet configuration shown in Figure 1. [Figure 7] This is a diagram illustrating a variation of a temporary toilet. [Figure 8] This diagram shows a modified example of an external wastewater tank. [Figure 9] This diagram illustrates another variation of an external wastewater tank. [Figure 10] This diagram shows the configuration with an external wastewater tank connected. [Figure 11] This is another diagram showing the configuration with an external wastewater tank connected. [Figure 12] This diagram illustrates other variations of a temporary toilet. [Modes for carrying out the invention]

[0013] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0014] FIG. 1 shows a partial cross-sectional structure of the temporary toilet 1 according to an embodiment of the present invention as viewed from the front. FIG. 2 shows a partial cross-sectional structure of the temporary toilet 1 as viewed from the side. FIG. 3 shows a partial cross-sectional structure of the temporary toilet 1 as viewed from the back.

[0015] This hypothetical toilet 1 is used in various places such as disaster areas, construction sites, work sites, event venues, service areas, etc., and is particularly suitable for use in disaster areas. The temporary toilet 1 includes a toilet 10, a sewage tank 20 for storing the sewage discharged from the toilet 10, and an external sewage tank 30 that is detachably connected so as to communicate with the sewage tank 20 and stores the sewage discharged from the sewage tank 20. The sewage tank 20 and the external sewage tank 30 are communicated by a drain pipe 40 such as a hose.

[0016] The toilet 10 can be either Japanese style or Western style and can be arbitrarily selected. Also, the toilet 10 can be either a flushing type or a non-flushing type, but from the perspective of hygiene, it is preferably a flushing type. At the bottom of the toilet 10, for example, a discharge portion 11 for discharging sewage (that is, drainage containing feces) is provided, and it is preferably detachably connected to the sewage tank 20. This is to enable it to be disassembled and stored when not in use. Also, it is preferable that an anti-odor check valve 12 is provided at the bottom of the toilet 10.

[0017] The sewage tank 20 is, for example, connected to the toilet 10 and is disposed under the toilet 10. The sewage tank 20 is preferably detachably connected to the toilet 10, and on the upper surface of the sewage tank 20, for example, a toilet attachment port 21 for detachably attaching the discharge portion 11 of the toilet 10 is provided. At the lower side of the side portion of the sewage tank 20, for example, a discharge port 22 for discharging the sewage stored inside is provided. A drain pipe 40, for example, is detachably connected to the discharge port 22. This is to enable it to be disassembled and stored when not in use and to enable the external sewage tank 30 to be removed and used when the external sewage tank 30 is not required.

[0018] The discharge port 22 may be provided to protrude from the wastewater tank 20, for example, as shown in Figure 4(A), or it may be embedded so as not to protrude from the wastewater tank 20, as shown in Figure 4(B). Specifically, for example, it is preferable to provide a recess 23 for the discharge port in the wastewater tank 20 and to provide the discharge port 22 in the recess 23 so as not to protrude from the recess 23. Embedding the discharge port 22 in this way is preferable because it does not take up space when stored and also prevents damage to the discharge port 22 from contact with other parts. Furthermore, it is preferable to form the discharge port 22 integrally with the wastewater tank 20, but when using an existing temporary toilet that does not have an external wastewater tank 30, for example, as shown in Figures 4(C) and (D), a hole may be made in the existing wastewater tank 20 and the discharge port 22 may be attached. In that case, as shown in Figure 4(C), it may be provided so as to protrude from the wastewater tank 20, or as shown in Figure 4(D), a recessed outlet portion 23 may be provided so as not to protrude from the wastewater tank 20.

[0019] The outlet 22 may be equipped with a removable outlet cap 22A, such as a blind cap, instead of the drain pipe 40, as shown in Figure 5(A). This is to allow the external wastewater tank 30 to be removed and used when it is not needed. Alternatively, as shown in Figures 4(D) and 5(B), an outlet valve 22B may be attached to the outlet 22, and the drain pipe 40 may be connected to the outlet 22 via the outlet valve 22B. This is because the drain pipe 40 can be easily removed and used by closing the drain valve 22B.

[0020] The top surface of the wastewater tank 20 is also provided with a wastewater tank suction port 24 for, for example, sucking up the wastewater stored inside using a vacuum truck or the like. The wastewater tank suction port 24 can be opened and closed by a suction port cap 24A, for example, a blind cap. The wastewater tank 20 may also be provided with a stirring means 25 for, for example, stirring the wastewater to disperse solid matter. The stirring means 25 has, for example, a stirring section 25A for stirring the wastewater and a drive section 25B, such as a motor, for driving the stirring section 25A. It is preferable to provide the stirring means 25 near the discharge port 22. This is to disperse the solid waste so that it can flow out of the discharge port 22 more easily.

[0021] The external wastewater tank 30 increases the wastewater storage capacity by moving wastewater from the wastewater tank 20. The external wastewater tank 30 is provided with, for example, an inlet 31 for wastewater to flow into it, and a drain pipe 40 is detachably connected to the inlet 31. This is so that it can be disassembled and stored when not in use.

[0022] For example, as shown in Figure 6(A), an inlet cap 31A, such as a blind cap, may be attached to the inlet 31 after the drain pipe 40 has been removed. Alternatively, for example, as shown in Figure 6(B), an inlet valve 31B may be attached to the inlet 31, and the drain pipe 40 may be connected to the inlet 31 via the inlet valve 31B. The inlet 31 may be provided to protrude from the external wastewater tank 30, for example, but as shown in Figure 6, an inlet recess 32 may be provided in the external wastewater tank 30 so that it does not protrude from the external wastewater tank 30, and the inlet 31 may be provided in the inlet recess 32.

[0023] The upper surface or upper side of the external wastewater tank 30 is also provided with an external wastewater tank suction port 33 for sucking up the wastewater stored inside using, for example, a vacuum truck. The external wastewater tank suction port 33 can be opened and closed by an external suction port cap 33A, for example, a blind cap. The external wastewater tank suction port 33 may be provided so as to protrude from the external wastewater tank 30, but similar to the inlet 31, a recess for the suction port 34 may be provided in the external wastewater tank 30 so as not to protrude from the external wastewater tank 30, and the external wastewater tank suction port 33 may be provided in the recess for the suction port 34.

[0024] Preferably, the upper surface or upper side of the external wastewater tank 30 is further provided with, for example, a gas venting means 35 for discharging gas accumulated inside. The gas venting means 35 has a configuration in which, for example, a pipe 35A with an openable and closable stopper is detachably connected to a distribution port 35B provided in the external wastewater tank 30. The distribution port 35B may be provided so as to protrude from the external wastewater tank 30, but similar to the inlet 31, a recessed portion 36 for the distribution port may be provided in the external wastewater tank 30 so as not to protrude from the external wastewater tank 30, and a distribution port 33 may be provided in the recessed portion 36 for the distribution port.

[0025] It is preferable that the external wastewater tank 30 is positioned lower than the wastewater tank 20, that is, that the wastewater tank 20 is positioned higher than the external wastewater tank 30, and that the difference in elevation is used to move wastewater from the wastewater tank 20 to the external wastewater tank 30. This is because it eliminates the need for a special device to move wastewater from the wastewater tank 20 to the external wastewater tank 30, simplifying the structure and making it easy to use. The wastewater tank 20 may be positioned higher than the external wastewater tank 30 by, for example, placing it on a wastewater tank stand 27 as shown in Figure 1, or it may be positioned higher than the external wastewater tank 30 by utilizing the elevation difference of the natural terrain, as shown in Figure 7. The capacity of the external wastewater tank 30 is preferably larger than that of the wastewater tank 20, for example, so that it can store a large amount of wastewater.

[0026] The shape of the external wastewater tank 30 is not particularly limited. For example, as shown in Figure 1, it may be a non-deformable rectangular parallelepiped, or as shown in Figures 8 and 9, it may be a structure that can be reduced in size by deformation. This is to allow it to be reduced in size for storage. Figure 8 shows a bellows structure, that is, a structure with repeated mountain and valley folds, making it expandable and contractible. Figure 9(A) shows one made of a flexible synthetic resin such as vinyl, which can be folded and reduced in size for storage. Alternatively, as shown in Figure 9(B), it may be formed into a ton bag shape using a flexible synthetic resin such as vinyl. The ton bag type external wastewater tank 30 can be used in times of disaster, but it is also preferably used at high-rise building construction sites, etc. For example, when installing a temporary toilet 1 on a high floor of a high-rise building construction site, it is preferable to detach the external wastewater tank 30 and lower it to the ground with a crane or the like, as this allows for easy wastewater treatment.

[0027] A connecting port 37 for connecting another external wastewater tank 30 may be provided on the lower side of the external wastewater tank 30. This is because, as shown in Figure 10, the amount of wastewater that can be stored can be increased by connecting multiple external wastewater tanks 30. Multiple external wastewater tanks 30 are connected, for example, by connecting pipes 38 such as hoses at each connecting port 37. Similar to the inlet 31, a connecting port cap 37A, such as a blind cap, may be attached to the connecting port 37 when the connecting pipe 38 is not connected. Alternatively, a connecting port valve 37B may be attached to the connecting port 37, and the connecting pipe 38 may be connected to the connecting port 37 via the connecting port valve 37B. The connecting port 37 may be provided to protrude from the external wastewater tank 30, but similar to the inlet 31, a recessed portion 39 for the connecting port 39 may be provided in the external wastewater tank 30 so that it does not protrude from the external wastewater tank 30, and the connecting port 37 may be provided in the recessed portion 39 for the connecting port 37. The external wastewater tank 30 may be connected in multiple units of different shapes, for example, as shown in Figure 11.

[0028] The external wastewater tank 30 is intended to increase the amount of wastewater that can be stored, but in the event of a disaster, it may be used as a water storage tank for drinking water, laundry water, bath water, etc., or as a fuel tank, in order to make the most of what is already available.

[0029] The temporary toilet 1 also preferably includes, for example, a water supply tank 50 for storing water to flush the toilet bowl 10. The water supply tank 50 is detachably connected to the toilet bowl 10 by, for example, a water supply pipe 51 such as a hose. The water supply tank 50 is preferably positioned higher than the toilet bowl 10, and configured to use the height difference to flow water from the water supply tank 50 to the toilet bowl 10. The water supply tank 50 is preferably positioned higher than the toilet bowl 10 by, for example, placing it on a water supply tank stand 52 which is placed on top of the wastewater tank 20. The top surface of the water supply tank 50 is provided with, for example, a water inlet 53 for supplying water, which can be opened and closed by a water inlet cap 53A such as a blind cap.

[0030] The water supply pipe 51 is provided with, for example, an on / off valve 54, and by opening or closing the on / off valve 54, water is supplied to or stopped from being supplied to the toilet bowl 10. The on / off valve 54 may also be configured to be linked with a pedal 56 via, for example, a coupling means 55, so that the on / off valve 54 can be operated by pressing the pedal 56. The pedal 56 is configured to be pressed when pressed, and to return to its original position by a biasing member when the pressing is stopped.

[0031] Preferably, the temporary toilet 1 is further equipped with a shielding means 60 that surrounds, for example, the toilet bowl 10. The shielding means 60 may be made up of a box-shaped box 61 formed by four side walls 61A and a roof 61B disposed thereon, with a door on one side, or it may be made up of a curtain or a partition plate. Preferably, the box 61 can be assembled and disassembled, for example, because it can reduce the storage space required.

[0032] Furthermore, the temporary toilet 1 may be used as an assembly-type simple toilet by, for example, as shown in Figure 12, arranging the toilet bowl 10, wastewater tank 20, external wastewater tank 30, and water supply tank 50 without providing the shielding means 60, connecting the wastewater tank 20 and the external wastewater tank 30 with a drain pipe 40, and connecting the toilet bowl 10 and the water supply tank 50 with a water supply pipe 51. In this case, it is preferable to place the toilet bowl 10 and wastewater tank 20 on a wastewater tank stand 27 so that the wastewater tank 20 is positioned higher than the external wastewater tank 30, and to place the water supply tank 50 on a water supply tank stand 52 so that the water supply tank 50 is positioned higher than the toilet bowl 10.

[0033] This temporary toilet 1 is used, for example, as follows: First, for example, the disassembled parts are assembled before use. Specifically, for example, the toilet bowl 10 is connected to the wastewater tank 20, and an external wastewater tank 30 is connected to the wastewater tank 20 via a discharge pipe 40, and the wastewater tank 20 is positioned higher than the external wastewater tank 30. Also, for example, a water supply tank 50 is connected to the toilet bowl 10 via a water supply pipe 51, and the water supply tank 50 is positioned higher than the toilet bowl 10. Next, for example, a shielding means 60 is arranged to surround the toilet bowl 10.

[0034] When the temporary toilet 1 is used, wastewater flows from the toilet bowl 10 into the wastewater tank 20, and then, due to the difference in elevation, flows from the wastewater tank 20 into the external wastewater tank 30, where a large volume of wastewater is stored. The wastewater stored in the external wastewater tank 30 is disposed of, for example, by being sucked up by a vacuum truck.

[0035] Furthermore, if the amount of wastewater that can be stored is to be increased, for example, multiple external wastewater tanks 30 can be connected and used. Also, if there is no need to use an external wastewater tank 30, for example, the wastewater tank 20 can be used without connecting an external wastewater tank 30, by attaching a discharge cap 22A to the discharge port 22. Furthermore, when use is finished and storage is to be done, the system can be disassembled into its individual parts.

[0036] As described above, this embodiment includes an external wastewater tank 30 for storing wastewater discharged from the wastewater tank 20. By moving the wastewater from the wastewater tank 20, the amount of wastewater that can be stored can be increased. Therefore, the usage period of the temporary toilet 1 can be extended, and it can accommodate situations where many people use it, such as during a disaster.

[0037] Furthermore, by connecting the wastewater tank 20 and the external wastewater tank 30 with a drain pipe 40, providing a discharge port 22 on the wastewater tank 20 for detachable connection of the drain pipe 40, and providing an inlet 31 on the external wastewater tank 30 for detachable connection of the drain pipe 40, the system can be connected when in use and disassembled for storage. This reduces the storage space required and makes it easier to prepare for disasters. Also, for example, if the external wastewater tank 30 does not need to be used under normal circumstances, the discharge pipe 40 can be removed from the wastewater tank 20, and a cap or the like can be attached to the discharge port 22 for use.

[0038] Furthermore, by providing a recessed area 23 for the discharge port in the wastewater tank 20, and positioning the discharge port 22 so as not to protrude from the recessed area 23, the discharge port 22 will not take up space during storage, and damage to the discharge port 22 due to contact with other objects can be prevented.

[0039] In addition, if the external wastewater tank 30 can be reduced in size by deformation, it can be reduced in size for storage, making it easier to store in a smaller space.

[0040] Furthermore, by connecting multiple external wastewater tanks 30, the amount of wastewater that can be stored can be increased even further.

[0041] Furthermore, by positioning the wastewater tank 20 at a higher elevation than the external wastewater tank 30, and utilizing the difference in elevation to move wastewater from the wastewater tank 20 to the external wastewater tank 30, the structure can be simplified and the system can be easily used.

[0042] Although the present invention has been described above with reference to embodiments, the present invention is not limited to the above embodiments and examples, and can be modified in various ways. For example, although each component has been described in detail, it is not necessary to have all of these components, and other components may be included. Furthermore, the specific details of each component may differ. [Explanation of symbols]

[0043] 1...Temporary toilet, 10...Toilet bowl, 11...Discharge section, 12...Odor-proof check valve, 20...Sewage tank, 21...Toilet bowl mounting port, 22...Discharge port, 22A...Discharge port cap, 22B...Discharge port valve, 23...Discharge port recess, 24...Sewage tank suction port, 24A...Suction port cap, 25...Agitation means, 25A...Agitation section, 25B...Drive unit, 27...Sewage tank stand, 30...External sewage tank, 31...Inlet, 31A...Inlet cap, 31B...Inlet valve, 32...Inlet recess, 33...External sewage tank suction port 33A…Cap for external suction port, 34…Recess for suction port, 35…Gas venting means, 35A…Pipe, 35B…Distribution port, 36…Recess for distribution port, 37…Connecting port, 37A…Cap for connecting port, 37B…Valve for connecting port, 38…Connecting pipe, 39…Recess for connecting port, 40…Drain pipe, 50…Water supply tank, 51…Water supply pipe, 52…Stand for water supply tank, 53…Water inlet, 53A…Cap for water inlet, 54…Opening / closing valve, 55…Coupling means, 56…Pedal, 60…Shielding means, 61…Box body, 61A…Side wall section, 61B…Roof section

Claims

1. Toilet bowl and A wastewater tank for storing wastewater discharged from the toilet, An external wastewater tank which is detachably connected to the aforementioned wastewater tank and stores the wastewater discharged from the aforementioned wastewater tank. A temporary toilet characterized by having the following features.

2. The aforementioned wastewater tank and the aforementioned external wastewater tank are connected by a drain pipe. The wastewater tank is provided with a discharge port to which the drain pipe is detachably connected. The external wastewater tank is provided with an inlet to which the drain pipe is detachably connected. The temporary toilet according to feature 1.

3. The temporary toilet according to claim 2, characterized in that the wastewater tank is provided with a recess for an outlet, and the outlet is provided in the recess for an outlet so as not to protrude from the recess for an outlet.

4. The temporary toilet according to claim 1, characterized in that the external wastewater tank can be reduced in size by deformation.

5. The temporary toilet according to claim 1, characterized in that the external wastewater tanks can be connected in multiple locations.

6. The temporary toilet according to claim 1, characterized in that the wastewater tank is positioned higher than the external wastewater tank, and wastewater is moved from the wastewater tank to the external wastewater tank using the difference in elevation.

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