JP6989195B1 - Flush toilet system for storage-type disasters - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flush toilet system for a storage disaster, which can use a flush toilet and prolong the storage period of excrement. SOLUTION: A storage type disaster water washing toilet system 1a has a water supply part for supplying water, a receiving part for receiving excrement, and a toilet device in which the receiving part is washed by groundwater supplied from the pumping part. The drainage W2 discharged from the toilet is circulated and connected to the upstream drainage pipe 7 buried in the ground, the upstream drainage pipe, the storage section 10 for storing the drainage, and the storage section, which is connected to the storage section. The downstream drainage pipe 11 through which the discharged drainage flows, the portion above the portion connected to the downstream drainage pipe in the storage section, and the downstream drainage pipe are connected to each other, and the drainage discharged from the storage section flows. The overflow pipe 12 is provided with an on-off valve 13 for opening and closing a portion of the downstream drainage pipe between the portion connected to the storage portion and the portion connected to the overflow pipe. [Selection diagram] Fig. 2

Description

The present invention relates to a flush toilet system for a storage type disaster.

Disasters such as earthquakes and floods may cause deterioration of the facility functions of buildings and residences and damage to water and sewage systems, which are lifelines. In this case, the flush toilet in the facility cannot be used. In such cases, temporary toilets are used in evacuation areas such as elementary schools and parks.

As such a temporary toilet, for example, Patent Document 1 mentions a storage-type disaster toilet system installed in an evacuation area in advance. This storage-type disaster toilet system includes a drainage pipe, a plurality of vertical pipes, a manhole (reservoir), and an outflow pipe (downstream drainage pipe). The drainage pipe is buried in the ground along the ground surface. The plurality of vertical pipes extend in the vertical direction. The plurality of vertical pipes are connected to the drainage pipe at intervals along the longitudinal direction thereof. One end of the drainage pipe is connected to the manhole. The outflow pipe is connected to the side wall of the manhole and connects the manhole and the existing sewer pipe.

In the event of a disaster, a temporary toilet (toilet bowl) will be placed at the upper end of each vertical pipe. Store water from the pool, etc. in the drain pipe in advance. When a temporary toilet of a storage type disaster toilet system is used, excrement can be discharged into the manhole via a vertical pipe and a drain pipe. This storage-type disaster toilet system is a so-called drop-type manhole toilet in which excrement is flushed with water after about 100 people use the temporary toilet.
The storage type disaster toilet system of Patent Document 1 is a storage type that stores excrement.

JP 2015-040387A

However, this storage type disaster toilet system is not a flush type in which the temporary toilet is washed with water. Therefore, when it is used by a plurality of users, it also has a problem that it is not preferable from the viewpoint of hygiene such as odor and germs.
Also, when cleaning a temporary toilet with water, this water also flows into the manhole. Therefore, in the manhole, there is also a problem that the excrement can be stored and the storage period of the excrement is shortened.

INDUSTRIAL APPLICABILITY The present invention has been made to solve the above problems, and is to provide a flush toilet system for disasters, which can use a flush toilet and prolong the storage period of excrement. With the goal.

In order to solve the above problems, the present invention proposes the following means.
The storage-type disaster flush toilet system according to the first aspect of the present invention has a water supply section for supplying water and a receiving section for receiving excrement, and the receiving section is washed with the water supplied from the water supply section. Toilet bowl, upstream drainage pipe that circulates the drainage discharged from the toilet bowl and is buried in the ground, is connected to the upstream drainage pipe, and is connected to a storage unit that stores the wastewater and the storage unit. It is connected to the downstream drain pipe through which the drainage discharged from the reservoir flows, the portion above the portion of the reservoir connected to the downstream drain pipe, and the downstream drain pipe, respectively. An on-off valve that opens and closes the overflow pipe through which the drainage discharged from the storage portion flows, and the portion of the downstream drainage pipe between the portion connected to the storage portion and the portion connected to the overflow pipe. It is characterized by having.

In the present invention, for example, the receiving portion of the toilet bowl can be washed by using the groundwater pumped by the well, the water supplied by the water supply unit, which is the water of the pool or the water storage tank. In particular, even in a situation where it is difficult to secure water such as in the event of a disaster, it is possible to wash the receiving portion of the toilet bowl with water and use a flush toilet bowl. The flush toilet system for storage-type disasters is also effective as a countermeasure against infectious diseases.
Further, the drainage (excrement and water) discharged from the toilet bowl flows through the upstream drainage pipe and flows into the storage unit if the downstream drainage pipe is not damaged at the time of a disaster. By opening the on-off valve, drainage flows from the storage unit to the downstream side through the downstream drainage pipe.
On the other hand, if the downstream drainage pipe is damaged during a disaster, by closing the on-off valve, the drainage stored in the storage section will not flow from the downstream drainage pipe to the downstream side, but will be stored in the storage section. Will be done.
After using the toilet bowl for a certain period of time, drainage may be stored until it exceeds the position where the overflow pipe is connected in the storage section. Even in such a case, the supernatant liquid in the drainage flows from the storage portion to the overflow pipe and the portion downstream of the portion connected to the overflow pipe in the downstream drainage pipe to the downstream side.
Therefore, in the flush toilet system for storage type disasters, it is possible to prolong the storage period of excrement, which enables the storage of excrement.

Further, in the storage type flush toilet system, the upstream drainage pipe is more than a drainage pipe main body connected to the toilet bowl and the storage portion, and a portion connected to the drainage pipe main body in the storage portion. It may have a lower portion and a branch pipe connected to the drainage pipe main body, respectively.
In the present invention, the drainage discharged from the toilet bowl flows through the portion of the drainage pipe main body on the upstream side of the portion connected to the branch pipe and the branch pipe if the downstream drainage pipe is not damaged at the time of a disaster. And flow into the reservoir. When the flow rate of the wastewater becomes relatively large, the wastewater discharged from the toilet bowl flows through the entire drainage pipe main body and the branch pipe, respectively, and flows into the storage unit. Therefore, when the flow rate of the drainage is relatively low, the drainage flows into the storage section from a relatively lower part in the storage section, and when the flow rate of the drainage is relatively high, the drainage is relatively downward in the storage section. It can be drained into the reservoir from both the part and the relatively upper part.

Further, in the storage type disaster flush toilet system, the height of the portion of the overflow pipe connected to the storage portion is located above the height of the portion of the drainage pipe main body connected to the storage portion. May be.
In the present invention, the position of the upper end of the drainage stored in the storage portion may exceed the height of the portion connected to the storage portion in the drainage pipe main body, and the supernatant liquid in the drainage may easily flow back to the drainage pipe main body to some extent. be. Even in such a case, the supernatant can be circulated to the downstream side through the overflow pipe and the portion downstream of the portion connected to the overflow pipe in the downstream drainage pipe.

Further, in the storage type disaster flush toilet system, the water supply unit includes a well, a water pumping unit that pumps groundwater which is the water from the well, a supply unit that supplies the groundwater to the ground surface, and the ground surface. The toilet bowl may be detachably connected to the water pumping unit and the upstream drainage pipe, and has a detachable pump unit that is detachably connected to the supply unit.
In the present invention, even in a situation where it is difficult to secure water such as in the event of a disaster, the receiving portion of the toilet bowl is washed with groundwater by pumping groundwater that can be stably supplied from a well and using it. , The toilet bowl can be used hygienically. Further, the toilet bowl can be attached to and detached from the water pumping part and the upstream drainage pipe, and the detachable pump part can be attached to and detached from the supply part. Therefore, in a normal time when a disaster does not occur, the toilet bowl and the detachable pump unit can be stored in, for example, a storage box (storage box) and managed in the disaster warehouse.

In the flush toilet system for a storage type disaster of the present invention, a flush toilet can be used and the storage period of excrement can be lengthened.

It is a schematic diagram explaining a part of the flush toilet system for a storage type disaster which concerns on one Embodiment of this invention. It is a schematic diagram explaining the rest of the flush toilet system for the storage type disaster. It is a top view which explains the toilet bowl, the detachable pump part, and the tent part of the storage type flush toilet system. It is sectional drawing of the main part in the flush toilet system for the storage type disaster. It is a schematic diagram explaining the state before the toilet bowl, the detachable pump part, and the tent part are installed in the storage type flush toilet system. It is sectional drawing of the cutting line A1-A1 in FIG. It is a schematic diagram explaining the state which the toilet bowl, the detachable pump part, and the tent part are housed in the storage type flush toilet system for disasters. It is a schematic diagram explaining the state which the toilet bowl and the detachable pump part are installed in the flush toilet system for a storage type disaster.

Hereinafter, a flush toilet system 1a for a storage-type disaster according to the present invention will be described with reference to FIGS. 1 to 8.
The storage-type flush toilet system 1a of the present embodiment is provided in advance at a school or the like that serves as an evacuation site in the event of a disaster such as an earthquake, so that it can be used as a storage-type and flush-type temporary toilet in the event of a disaster. be.
As shown in FIGS. 1 and 2, in this example, below the ground surface G where the flush toilet system 1a for storage type disaster is installed, the roadbed G2 such as crushed stone, the heated asphalt mixture, etc. are placed on the soil G1. The surface layer G3 is arranged. The ground surface G is the upper surface of the surface layer G3.
The storage type flush toilet system 1a includes a water supply unit 1A, a plurality of toilet bowls 4, a fixed unit 5, a tent unit 6, an upstream drain pipe 7, a storage tank (storage unit) 10, and a downstream side. It includes a drain pipe 11, an overflow pipe (overflow pipe) 12, and an on-off valve 13.

As shown in FIG. 1, the water supply unit 1A supplies groundwater (water) W. The water supply unit 1A has a well 2 and a water pumping unit 3.
The water supply unit may include a pool, a water storage tank, and a pump for supplying the water in these to the toilet bowl 4.
Well 2 is a hole that penetrates from the surface G to the groundwater source. The well 2 is provided downward (vertically downward) from the ground surface G. The well 2 of the present embodiment is, for example, a deep well capable of collecting groundwater W at a depth of about 30 m. In the well 2, the inner wall of the well 2 is supported by the well casing 21 extending in the vertical direction and being buried.
The well casing 21 is a pipe material having a cross-sectional shape having a size through which a pumping pipe 311 described later can be inserted.

The water pumping unit 3 pumps groundwater W from the well 2. The water pumping unit 3 supplies the groundwater W pumped up to the toilet bowl 4 provided on the ground surface G. The water pumping unit 3 has a supply unit 31 that supplies the groundwater W to the ground surface G, and a detachable pump unit 32 that supplies the groundwater W from the supply unit 31 to the toilet bowl 4 on the ground surface G.

The supply unit 31 supplies groundwater W from the deep part of the well 2 to the attachment / detachment pump unit 32 on the ground surface G. As shown in FIGS. 1 and 3, the supply unit 31 pumps from the deep well pump unit 313 provided on the ground surface G, the pumping pipe 311 that sends the groundwater W from the inside of the well 2 to the deep well pump unit 313, and the well 2. A water storage tank 312 for storing the groundwater W, a water guide pipe 315 for guiding the groundwater W from the deep well pump unit 313 to the water storage tank 312, a connection pipe 314 extending from the water storage tank 312, and a water storage tank 312 side in the connection pipe 314. Has a rainwater infiltration mass 316 with opposite ends arranged and a suction pipe 317 detachably attached to a connecting pipe 314.
In FIG. 3, the tent portion 6 is shown by a two-dot chain line.

As shown in FIG. 1, the deep well pump unit 313 supplies groundwater W to the water tank 312. In the present embodiment, the deep well pump unit 313 is a hand pump for a deep well that pumps groundwater W from a well 2 having a depth of about 30 m. The deep well pump unit 313 is provided in advance on the ground surface G above the well 2 (upper in the vertical direction). The deep well pump unit 313 of the present embodiment is provided in the deep well pump main body 313a for pumping the ground water W, the deep well pump lever 313b for causing the deep well pump main body 313a to pump up the ground water W, and the deep well pump main body 313a. It has a deep well pump water port 313c for discharging ground water W, a switching mechanism 313d provided in the deep well pump water port 313c, and a switching lever 313e for operating the switching mechanism 313d.

The deep well pump main body 313a is installed on the ground surface G via a gantry. The deep well pump main body 313a has a piston inside. The deep well pump main body 313a pulls up the groundwater W through the pumping pipe 311 by moving the piston in the vertical direction, and pumps the groundwater W from the well 2.

The deep well pump lever 313b is attached to the deep well pump main body 313a. The deep well pump lever 313b is moved in the vertical direction to move the piston in the deep well pump main body 313a in the vertical direction.

The deep well pump water port 313c is a discharge port attached to the deep well pump main body 313a. The deep well pump water port 313c discharges the groundwater W pumped up by the deep well pump main body 313a downward.
The end of the water pipe 315 is connected to the switching mechanism 313d. Although not shown, the switching mechanism 313d has a switching valve built in the mechanism body. When the switching valve is arranged at the first position in the mechanism main body, the groundwater W pumped up by the deep well pump main body 313a flows into the water pipe 315. On the other hand, when the switching valve is arranged in the second position different from the first position in the mechanism main body, the groundwater W pumped up by the deep well pump main body 313a is discharged from the deep well pump water port 313c.
The switching lever 313e switches the position of the switching valve in the mechanism main body between the first position and the second position.

A water receiver 313f is embedded in the ground below the deep well pump water port 313c. The water receiver 313f receives the groundwater W discharged from the deep well pump water port 313c and discharges it into the ground.

The pumping pipe 311 is connected to the deep well pump unit 313. The pumping pipe 311 is arranged in the well casing 21 of the well 2. Specifically, the pumping pipe 311 of the present embodiment includes a pumping pipe main body 311a fixed to the deep well pump main body 313a and extending to the groundwater W, and an intermediate cylinder 311b fixed to the pumping pipe main body 311a. There is.

The pumping pipe main body 311a is a pipe extending downward from the deep well pump main body 313a. The pumping pipe main body 311a circulates the groundwater W to the deep well pump main body 313a on the ground surface G. In the present embodiment, the pumping pipe main body 311a is made of, for example, a pipe material having a pipe diameter of 40 mm.

The intermediate cylinder 311b is arranged at a position where it is immersed in the groundwater W, and is provided in the middle of the pumping pipe main body 311a. The intermediate cylinder 311b improves the maximum head of the deep well pump section 313. The intermediate cylinder 311b of the present embodiment is linked to the movement of the deep well pump lever 313b. The intermediate cylinder 311b pumps groundwater W at atmospheric pressure to the position where the intermediate cylinder 311b is arranged by moving the deep well pump lever 313b. After that, in the intermediate cylinder 311b, the deep well pump main body 313a is arranged so that the groundwater W pumped up to the position where the intermediate cylinder 311b is arranged is manually lifted by further manually moving the deep well pump lever 313b. Pump water to the desired position. Therefore, the intermediate cylinder 311b makes it possible to manually pump the groundwater W even to a deep well having a depth of 20 m or more.

The water storage tank 312 stores the groundwater W pumped up by the deep well pump unit 313 via the pumping pipe 311. The water storage tank 312 includes a water storage tank main body 312a for storing the groundwater W and a water storage pipe 312b for discharging the groundwater W to the upstream drain pipe 7 when the water storage amount of the water storage tank main body 312a exceeds a predetermined amount. Have.
The water storage pipe 312b corresponds to an overflow pipe.

The water tank main body 312a is buried in the ground among the plurality of toilet bowls 4, and the upper part is open at the ground surface G. The water storage tank main body 312a has a water storage lid 312c such as the storage lid 103 described later of the storage tank 10. The water storage tank main body 312a receives the groundwater W discharged from the deep well pump water port 313c by removing the water storage lid 312c, and can store water. The water storage tank main body 312a is made of vinyl chloride resin and can store about 100 L (liter) of groundwater W.

The water storage pipe 312b discharges the groundwater W to the upstream drain pipe 7 when the water storage amount of the water storage pipe 312b exceeds a predetermined amount so that the groundwater W does not overflow from the water tank main body 312a. The water storage pipe 312b of the present embodiment is connected to the water storage tank main body 312a at a position in the middle of the vertical direction exceeding the water storage amount of the water storage tank main body 312a.

For example, the water pipe 315 is made of vinyl chloride resin or the like. The water pipe 315 is connected to the switching mechanism 313d of the deep well pump unit 313 and the water tank main body 312a, respectively.
As shown in FIG. 3, the rainwater infiltration mass 316 is arranged for each toilet bowl 4 to be installed. As shown in FIG. 4, the rainwater infiltration mass 316 has a mass body 316a and a first mass lid 316b.
The mass body 316a is formed in the shape of a bottomed cylinder. A plurality of through holes (not shown) are formed in the mass body 316a. The mass body 316a is arranged in the ground beside each of the toilet bowls 4 to be installed.
For example, the first mass lid 316b is a resin lid formed in a disk shape. A notch 316b1 is formed in the first mass lid 316b. The first mass lid 316b closes the opening formed at the upper end of the mass body 316a. The first mass lid 316b is detachably attached to the mass body 316a.

In the rainwater infiltration mass 316 configured as described above, for example, rainwater may flow into the mass body 316a through the notch 316b1 of the first mass lid 316b. Even in such a case, rainwater can be discharged into the ground to the outside of the mass body 316a through the plurality of through holes of the mass body 316a.

The connecting pipe 314 extends from the inside of the water tank 312 to the rainwater infiltration mass 316. The end of the connecting pipe 314 is arranged in the mass body 316a of the rainwater infiltration mass 316 and fixed to the mass body 316a. The connecting pipe 314 is provided for each toilet bowl 4 to be installed.
For example, the suction pipe 317 is formed so as to be bent by metal. The first end portion of the suction pipe 317 is detachably attached to the connecting pipe 314 through the notch 316b1 of the first mass lid 316b. The second end portion of the suction pipe 317 opposite to the first end portion is detachably connected to the detachable pump portion 32.

The detachable pump unit 32 pumps up the groundwater W stored in the water storage tank 312 and supplies it to the toilet bowl 4. The detachable pump portion 32 is detachably connected to the supply portion 31 by a fixed portion 5 (first fixed portion 5A described later) provided on the ground surface G. The detachable pump unit 32 is detachably connected to the toilet bowl 4. The attachment / detachment pump unit 32 is provided for each toilet bowl 4 to be installed. The detachable pump unit 32 of the present embodiment is a hand pump for shallow wells.
As shown in FIG. 4, the attachment / detachment pump unit 32 of the present embodiment includes an attachment / detachment pump unit main body 321 for pumping groundwater W, an attachment / detachment pump unit lever 322 for causing the attachment / detachment pump unit main body 321 to pump up groundwater W, and an attachment / detachment pump. It has a flexible hose 323 that connects the main body 321 and the toilet pump 4.

The detachable pump portion main body 321 is detachable from the suction pipe 317 by the fixed portion 5 (first fixed portion 5A). The detachable pump portion main body 321 has a flange portion 321a extending outward at the bottom portion. A through hole is formed in the flange portion 321a.
The detachable pump unit main body 321 has a piston inside. By moving this piston in the vertical direction, the detachable pump unit main body 321 pumps up the groundwater W in the water storage tank 312 via the connecting pipe 314.

The attachment / detachment pump portion lever 322 is attached to the attachment / detachment pump portion main body 321. The attachment / detachment pump unit lever 322 is moved in the vertical direction to move the piston in the attachment / detachment pump unit main body 321 in the vertical direction.

The flexible hose 323 is detachably connected to the detachable pump unit main body 321 and the toilet bowl 4, respectively. The flexible hose 323 distributes the groundwater W pumped up by the detachable pump unit main body 321 toward the toilet bowl 4. The flexible hose 323 of the present embodiment is a pipe having high flexibility.

For example, the fixed portion 5 is provided on the ground surface G in the parking lot 53. The toilet bowl 4 and the detachable pump portion 32 are fixed to the fixed portion 5. The fixed portion 5 of the present embodiment has a first fixed portion 5A and a second fixed portion 5B. The fixed portions 5A and 5B are each formed into a flat plate shape by concrete. The fixed portions 5A and 5B are arranged side by side along the ground surface G. The upper surfaces of the fixed portions 5A and 5B are flush with the ground surface G.
The fixed portion 5 of the present embodiment is provided for each toilet bowl 4 to be installed. A rainwater infiltration mass 316 is arranged in the second fixed portion 5B.
As shown in FIG. 5, the fixed portion 5 has a second mass lid 51 that closes the opening of the connecting pipe 314, and a drain pipe lid 52 that closes the opening of the upstream drain pipe 7.

The second mass lid 51 is a metal lid formed in a disk shape. No notch is not formed in the second mass lid 51. The second mass lid 51 closes the opening formed at the upper end of the mass body 316a. The second mass lid 51 is detachably attached to the mass body 316a.
The second mass lid 51 is removed from above the opening of the mass body 316a when the detachable pump portion 32 is installed and the suction pipe 317 is connected.

The drain pipe lid 52 has a flat plate shape. The drain pipe lid 52 is arranged on the opening of the upstream drain pipe 7 to close the opening of the upstream drain pipe 7. The drainage pipe lid 52 closes the opening of the vertical pipe 75 of the upstream drainage pipe 7, which will be described later, in a state where the toilet bowl 4 is not installed. The drainage pipe lid 52 is removed from above the opening of the upstream drainage pipe 7 when the toilet bowl 4 is installed.

A plurality of bolt fixing holes are formed around the opening of the upstream drainage pipe 7 on the surface facing upward of the first fixed portion 5A of the present embodiment. On the other hand, the toilet bowl 4 and the detachable pump portion 32 are each provided with through holes (not shown).
The bolt, which is a fixative, is fixed to the plurality of bolt fixing holes of the first fixed portion 5A with the through holes of the toilet bowl 4 and the detachable pump portion 32 inserted, whereby the toilet bowl 4 and the detachable pump portion 32 are fixed. Is detachably fixed to the first fixed portion 5A.
A bollard 54 is fixed to the ground surface G around the fixed portion 5. The car 145 can be parked in the parking lot 53 by using the bollard 54.

The fixed structure of the toilet bowl 4, the detachable pump portion 32, and the first fixed portion 5A is not limited to the structure as in the present embodiment, and is a structure that can be attached to and detached from the first fixed portion 5A. It should be.

The toilet bowl 4 is a Western-style toilet bowl made of pottery. As shown in FIG. 1, the toilet bowls 4 are arranged at a plurality of locations separated from each other. In this embodiment, for example, the toilet bowl 4 is arranged at two places. The toilet bowl 4 is detachably connected to the water pumping portion 3 and the upstream drainage pipe 7 by a fixed portion 5 provided on the ground surface G. Groundwater W is supplied to the toilet bowl 4 from the water pumping unit 3.
As shown in FIG. 4, the toilet bowl 4 of the present embodiment has a receiving portion 41 for receiving excrement excreted by the user, and an inflow portion 42 connected to the flexible hose 323 and flowing groundwater W into the receiving portion 41. ..

The receiving portion 41 has a surface formed inside the toilet bowl 4 for receiving the excrement excreted by the user. The receiving portion 41 is washed by the groundwater W supplied from the water pumping portion 3 via the inflow portion 42. The receiving portion 41 of the present embodiment forms a funnel-shaped space that opens to the upper surface in the toilet bowl 4. A discharge opening 41a is formed in the bottom portion of the receiving portion 41.

The drainage opening 41a is arranged above the opening of the upstream drainage pipe 7 with the toilet bowl 4 fixed to the first fixed portion 5A.
The inflow portion 42 is connected to the flexible hose 323. The inflow section 42 receives the groundwater W sent from the detachable pump section main body 321 via the flexible hose 323 and flows into the section 41.

The tent portion 6 is assembled on the ground surface G and covers the toilet bowl 4 and the detachable pump portion 32. The tent portion 6 of the present embodiment has a vertically long dome shape that is long in the vertical direction. The tent portion 6 is a foldable type.
For example, in normal times when no disaster has occurred, the tent portion 6 is folded and housed. By expanding and assembling the tent portion 6 in an emergency when a disaster occurs, the tent portion 6 is installed around the toilet bowl 4 and the detachable pump portion 32. The tent portion 6 is provided with a fastener (not shown) that can be freely opened and closed when the user enters or leaves the room. The tent portion 6 is formed so that the inside cannot be seen from the outside by closing the fastener. The tip of the fastener is provided with a lock mechanism (not shown) that prevents the fastener from being opened and closed from the outside of the tent portion 6.

The storage tank 10 stores the wastewater W2 discharged from the toilet bowl 4, including the excrement treated by the toilet bowl 4 and the groundwater W. As shown in FIGS. 2 and 6, the storage tank 10 has a main body 101, a tubular portion 102, and a storage lid 103.
The main body 101 is a so-called square manhole. The main body 101 is formed in a hollow rectangular parallelepiped shape. The main body 101 extends in a predetermined direction D along a horizontal plane. The main body 101 has a bottom wall 105, a top wall 106, a pair of first side walls 107 and 108, and a pair of second side walls 109 and 110.
The bottom wall 105, the top wall 106, the first side wall 107, 108, and the second side wall 109, 110 are flat plates, respectively.
The bottom wall 105 exhibits a long rectangular shape in a predetermined direction D in a plan view. An invert (groove) 105a extending in a predetermined direction D is formed on the upper surface of the bottom wall 105. The invert 105a exhibits a semicircular shape when viewed in a predetermined direction D.
A through hole 106a that penetrates the top wall 106 in the vertical direction is formed in the central portion of the top wall 106. The through hole 106a has a circular shape in a plan view.

The first side walls 107 and 108 are provided at the edge of the bottom wall 105 in a predetermined direction D. The first side walls 107 and 108 extend upward from the bottom wall 105. The first side wall 107 is arranged on the upstream side where the drainage W2 flows from the first side wall 108.
The first side wall 107 is formed with overhanging portions 107a and 107b that project toward the upstream side of the other portion of the first side wall 107. The overhanging portions 107a and 107b are arranged in the vertical direction and are arranged so as to be separated from each other. The overhanging portion 107a is arranged above the overhanging portion 107b.

The first side wall 108 is formed with overhanging portions 108a and 108b that project toward the downstream side through which the drainage W2 flows, rather than the other parts of the first side wall 108. The overhanging portions 108a and 108b are arranged in the vertical direction and are arranged so as to be separated from each other. The overhanging portion 108a is arranged above the overhanging portion 108b.
The second side walls 109 and 110 are provided at the edge of the bottom wall 105 along the horizontal plane and in a direction orthogonal to a predetermined direction D. The second side walls 109 and 110 extend upward from the bottom wall 105.

For example, the volume of the main body 101 is 3.0 m ³ (3000 L).
As shown in FIG. 2, in order to arrange the main body 101 configured as described above, the mortar 142 is arranged on the crushed stone 141 in the ground. The bottom wall 105 of the main body 101 is installed on the floor mortar 142.

As shown in FIGS. 2 and 6, the tubular portion 102 is formed in a cylindrical shape. The tubular portion 102 extends upward from the peripheral edge portion of the through hole 106a in the top wall 106 of the main body 101. The upper end of the tubular portion 102 reaches the ground surface G.
The storage lid 103 is an iron lid formed in a disk shape. The storage lid 103 closes the opening formed at the upper end of the tubular portion 102. The storage lid 103 is detachably attached to the tubular portion 102.
The main body 101 and the tubular portion 102 are preferably made of so-called lightweight concrete having a smaller specific gravity than general concrete. When formed in this way, the main body 101 and the tubular portion 102 (storage tank 10) can be easily installed.

As shown in FIGS. 1 and 2, the upstream drainage pipe 7 is buried in the ground. In the upstream drainage pipe 7, the drainage W2 circulates. The upstream drainage pipe 7 distributes the drainage W2 to the storage tank 10. The upstream drainage pipe 7 has a drainage pipe main body 71 and a branch pipe 72.
The drainage pipe main body 71 is connected to a plurality of toilet bowls 4 and a storage tank 10, respectively. As shown in FIG. 1, the drainage pipe main body 71 has a horizontal pipe 74 and a vertical pipe 75 connecting the horizontal pipe 74 and each toilet bowl 4.

The horizontal pipe 74 extends in a predetermined direction D along the horizontal plane. The transverse pipe 74 is inclined downward with a downward slope toward the downstream side. The horizontal pipe 74 of the present embodiment is connected to the water storage pipe 312b on the upstream side. As shown in FIG. 2, the horizontal pipe 74 is connected to the overhanging portion 107a of the first side wall 107 of the main body 101 of the storage tank 10 on the downstream side.
As shown in FIG. 1, the vertical pipe 75 is a pipe material that extends downward from the ground surface G and communicates with the horizontal pipe 74. The vertical pipes 75 are arranged at a plurality of locations corresponding to the toilet bowls 4 installed at intervals along the extending direction of the horizontal pipes 74. The vertical pipe 75 communicates with the discharge opening 41a of the receiving portion 41 by attaching the toilet bowl 4 to the first fixed portion 5A of the fixed portion 5.

As shown in FIG. 2, the branch pipe 72 has a branch vertical pipe 77, a curved pipe 78, and a branch horizontal pipe 79.
The branch vertical pipe 77 is connected to the horizontal pipe 74 of the drainage pipe main body 71. The branch vertical pipe 77 is connected to a portion of the horizontal pipe 74 on the downstream side of the portion connected to the plurality of vertical pipes 75. The branch vertical pipe 77 extends downward from a portion of the horizontal pipe 74 upstream of the portion connected to the main body 101 of the storage tank 10.
The branch transverse pipe 79 extends in a predetermined direction D. The intermediate portion of the branch transverse pipe 79 in the predetermined direction D is connected to the overhanging portion 107b of the first side wall 107 of the main body 101 of the storage tank 10. That is, the branch horizontal pipe 79 is connected to a portion of the storage tank 10 below the portion connected to the drainage pipe main body 71. The downstream end of the branch transverse pipe 79 is located within the upstream end of the invert 105a of the bottom wall 105.
The bent pipe 78 connects the lower end portion of the branch vertical pipe 77 and the upstream end portion of the branch horizontal pipe 79.
As described above, the horizontal pipe 74 of the upstream drainage pipe 7 and the branch horizontal pipe 79 of the branch pipe 72 are connected to the main body 101 of the storage tank 10, respectively.

The downstream drainage pipe 11 extends in a predetermined direction D. The downstream drainage pipe 11 is inclined downward toward the downstream side. The upstream end of the downstream drainage pipe 11 is connected to the overhanging portion 108b of the first side wall 108 of the main body 101 of the storage tank 10. The upstream end of the downstream drainage pipe 11 is located within the downstream end of the invert 105a of the bottom wall 105. The height of the portion of the downstream drainage pipe 11 connected to the storage tank 10 and the height of the portion of the branch pipe 72 connected to the storage tank 10 are equal to each other.
The downstream end of the downstream drainage pipe 11 is connected to a sewer sewage pipe (not shown).
The drainage W2 discharged from the storage tank 10 flows through the downstream drainage pipe 11.

As shown in FIGS. 2 and 6, the overflow pipe 12 has a branch horizontal pipe 121, a curved pipe 122, and a branch vertical pipe 123.
The branch transverse pipe 121 extends in a predetermined direction D. More specifically, the branch transverse pipe 121 extends so as to be inclined with respect to a predetermined direction D in the plan view shown in FIG. As shown in FIG. 2, the branch cross pipe 121 is inclined downward with a downward slope toward the downstream side. The upstream end of the branch horizontal pipe 121 is connected to the overhanging portion 108a of the first side wall 108 of the main body 101 of the storage tank 10. The branch horizontal pipe 121 is connected to a portion of the storage tank 10 above the portion connected to the downstream drainage pipe 11. The height of the portion of the branch horizontal pipe 121 of the overflow pipe 12 connected to the storage tank 10 is located above the height of the portion of the horizontal pipe 74 of the drainage pipe main body 71 connected to the storage tank 10.
The branch vertical pipe 123 extends upward from the downstream drainage pipe 11. That is, the branch vertical pipe 123 is connected to the downstream drainage pipe 11.
The bent pipe 122 connects the downstream end portion of the branch horizontal pipe 121 and the upper end portion of the branch vertical pipe 123.
The drainage W2 discharged from 10 flows through the overflow pipe 12.

For the overflow pipe 12, the downstream drainage pipe 11, and the upstream drainage pipe 7, pipes having an outer diameter of 15 cm to 20 cm and having a general size in this field are used.

As shown in FIGS. 2 and 6, the on-off valve 13 is a gate valve. The on-off valve 13 has a valve main body 131, a rising pipe 132, and a valve lid 134.
The valve main body 131 is provided in a portion of the downstream drainage pipe 11 between the portion to which the overflow pipe 12 is connected and the portion to which the storage tank 10 is connected. A gate (not shown) is arranged in the valve body 131. For example, an uneven shape is formed on the upper part of the gate.
The rising pipe 132 extends upward from the valve body 131 to near the ground surface G. The branch horizontal pipe 121 of the overflow pipe 12 extends so as to be inclined with respect to a predetermined direction D in a plan view so as not to interfere with the rising pipe 132.

For example, a long tool (metal fitting) D6 is inserted into the rising pipe 132 from above the ground surface G and fitted into the uneven shape of the gate. The tool D6 is shown by a two-dot chain line in FIG. When the tool D6 is rotated around the axis of the tool D6, the gate moves in the vertical direction and the downstream drainage pipe 11 opens and closes. That is, the on-off valve 13 opens and closes the portion of the downstream drainage pipe 11 between the portion connected to the storage tank 10 and the portion connected to the overflow pipe 12. Opening the downstream drainage pipe 11 here means making the drainage W2 circurable in the downstream drainage pipe 11. Closing the downstream drainage pipe 11 means that the drainage W2 cannot flow in the downstream drainage pipe 11.

The valve lid 134 has a disk shape. The valve lid 134 is on the ground surface G and closes the opening above the rising pipe 132.
When operating the on-off valve 13, the manager who manages the flush toilet system 1a for storage type disaster removes the valve lid 134. For example, the downstream drainage pipe 11 is opened and closed by fitting the tool D6 into the uneven shape of the gate from above the ground surface G and moving the gate in the vertical direction.

Next, a construction method of the storage type flush toilet system 1a having the above configuration will be described.
As shown in FIG. 5, in the storage type flush toilet system 1a of the present embodiment, the toilet bowl 4 and the detachable pump portion 32 are removed from the fixed portion 5 at normal times when no disaster occurs. Further, the tent portion 6 is also folded and stored. At this time, in the fixed portion 5, the opening of the vertical pipe 75 is closed by arranging the drainage pipe lid 52, and the opening of the mass main body 316a is closed by arranging the second mass lid 51.
Further, the toilet bowl 4 and the detachable pump portion 32 removed from the fixed portion 5 are each disassembled and housed in a storage box 150 as shown in FIG. 7. The storage box 150 is managed, for example, in a school disaster warehouse.

In the event of an emergency such as an earthquake, as shown in FIG. 8, the toilet bowl 4, the detachable pump section 32, and the tent section 6 are taken out from the storage box 150 managed in the disaster warehouse, and the fixed portion 5 is the first. 1 Fix to the fixed portion 5A. Specifically, in the present embodiment, for example, the toilet bowl 4 is taken out from the storage box 150 and assembled. The position of the through hole at the bottom of the toilet bowl 4 and the bolt fixing hole of the first fixed portion 5A provided around the opening of the vertical pipe 75 are aligned. After that, the toilet bowl 4 is fixed to the first fixed portion 5A by inserting a bolt. By attaching the toilet bowl 4 to the first fixed portion 5A in this way, the discharge opening 41a of the receiving portion 41 of the toilet bowl 4 and the opening of the vertical pipe 75 are connected to each other.

Similarly, the detachable pump unit main body 321 is taken out from the storage box 150 and assembled. The position of the through hole of the flange portion 321a of the bottom portion of the attachment / detachment pump portion main body 321 and the bolt fixing hole of the first fixed portion 5A provided around the opening of the connection pipe 314 are aligned. After that, the attachment / detachment pump portion main body 321 is fixed to the first fixed portion 5A by inserting a bolt.

Remove the second mass lid 51 from the mass body 316a. The suction pipe 317 is connected to the connection pipe 314 and the attachment / detachment pump unit 32, respectively. The opening of the mass body 316a is closed with the first mass lid 316b.
With the detachable pump unit main body 321 attached to the first fixed portion 5A, the detachable pump portion main body 321 and the inflow portion 42 of the toilet bowl 4 are connected by a flexible hose 323, and the toilet bowl 4 and the detachable pump portion 32 are installed.
After installing the toilet bowl 4 and the detachable pump portion 32 in the first fixed portion 5A, the tent portion 6 is assembled, and the tent portion 6 covers the toilet bowl 4 and the detachable pump portion 32 as shown in FIG.

Next, the operation of the storage type flush toilet system 1a having the above configuration will be described.
The storage type flush toilet system 1a of the present embodiment as described above is used in an evacuation center such as a school or a park when a disaster such as an earthquake occurs. The storage type disaster flush toilet system 1a is installed by the construction method as described above, and when the user uses it, the groundwater W is stored in the water storage tank 312 in advance. The on-off valve 13 is kept open. The switching lever 313e is operated so that the groundwater W pumped up by the deep well pump main body 313a flows into the water pipe 315.
Specifically, the deep well pump lever 313b is moved, and the groundwater W is pumped up by the deep well pump main body 313a. The groundwater W flows through the pumping pipe main body 311a via the intermediate cylinder 311b, is pumped up to the deep well pump main body 313a, and is discharged from the deep well pump water port 313c into the water tank main body 312a through the water guide pipe 315. The deep well pump lever 313b is moved until a predetermined amount of groundwater W is stored in the water tank main body 312a, and the water is continuously discharged from the water guide pipe 315 into the water tank main body 312a.

When the amount of groundwater W stored in the water storage tank main body 312a exceeds a predetermined amount, the water is discharged from the water storage pipe 312b to the drainage pipe main body 71. Therefore, the groundwater W is prevented from overflowing from the water tank main body 312a to the ground surface G.

With the groundwater W stored in the water tank main body 312a, the user enters the tent portion 6 and closes the fastener portion to excrete the inside of the tent portion 6. The excrement excreted by the user falls from the receiving portion 41 through the discharge opening 41a into the vertical pipe 75 toward the horizontal pipe 74.

After that, the user moves the detachable pump part lever 322 and pumps up the groundwater W in the water storage tank main body 312a by the detachable pump part main body 321. The groundwater W flows through the connecting pipe 314 and the suction pipe 317, is pumped up to the detachable pump section main body 321 and is sent from the flexible hose 323 to the inflow section 42 of the toilet bowl 4. The groundwater W sent to the inflow portion 42 flows into the receiving portion 41 and cleans the receiving portion 41. The groundwater W that has washed the receiving portion 41 falls in the vertical pipe 75 toward the horizontal pipe 74 through the discharge opening 41a. The drainage W2 containing the excrement and the groundwater W that has washed the receiving portion 41 flows through the horizontal pipe 74 toward the storage tank 10. When the flow rate is relatively low, the drainage W2 flows through a portion of the drainage pipe main body 71 on the upstream side of the portion connected to the branch pipe 72 and the branch pipe 72, and flows into the storage tank 10. When the flow rate of the drainage W2 is relatively large, the entire drainage pipe 71 and the branch pipe 72 are circulated and flow into the storage tank 10.
Since the user can wash his / her hands with the pumped groundwater W, infectious diseases and the like can be prevented.

The drainage W2 that has flowed onto the bottom wall 105 of the storage tank 10 easily flows into the invert 105a.

As described above, in the storage type disaster flush toilet system 1a of the present embodiment, the receiving portion 41 of the toilet bowl 4 can be washed by using the groundwater W supplied by the water supply unit 1A. Therefore, for example, even in a situation where it is difficult to secure water such as in the event of a disaster, by pumping groundwater W that can be stably supplied from the well 2 and using it, the receiving portion 41 of the toilet bowl 4 can be used as groundwater. A flush toilet 4 can be used after washing with W.
Further, the drainage W2 discharged from the toilet bowl 4 flows through the upstream drainage pipe 7 and flows into the storage tank 10 if the downstream drainage pipe 11 is not damaged at the time of a disaster. By opening the on-off valve 13, the drainage W2 flows from the storage tank 10 to the downstream drainage pipe 11 to the downstream sewage pipe.
On the other hand, if the downstream drainage pipe 11 is damaged during a disaster, the on-off valve 13 is closed so that the drainage W2 stored in the storage tank 10 does not flow from the downstream drainage pipe 11 to the downstream side. , It is stored in the storage tank 10.
When the toilet bowl 4 is used for a certain period of time, the drainage W2 may be stored until it exceeds the position where the overflow pipe 12 is connected in the storage tank 10. Even in such a case, the supernatant liquid in the drainage W2 passes from the storage tank 10 to the downstream side through the portion downstream from the portion connected to the overflow pipe 12 and the overflow pipe 12 in the downstream drainage pipe 11. To circulate. The supernatant liquid referred to here means a portion of the wastewater W2 that does not relatively contain a solid portion and mainly contains a liquid portion.
Therefore, in the storage type disaster flush toilet system 1a, it is possible to prolong the storage period of excrement, which enables storage of excrement.

For example, the user can use the storage type disaster flush toilet system 1a for at least 3 days.
After using the flush toilet system 1a for a storage type disaster, for example, the manager treats the wastewater W2 in the storage tank 10 with a vacuum car (sucking car).

The upstream drainage pipe 7 has a drainage pipe main body 71 and a branch pipe 72. When the flow rate of the drainage W2 is relatively small, the drainage W2 discharged from the toilet bowl circulates in the portion upstream of the portion of the drainage pipe main body 71 connected to the branch pipe 72 and the branch pipe 72. , Flows into the storage tank 10. On the other hand, when the flow rate of the drainage W2 is relatively large, the drainage W2 discharged from the toilet bowl circulates through the entire drainage pipe main body 71 and the branch pipe 72, respectively, and flows into the storage tank 10. Therefore, when the flow rate of the drainage W2 is relatively small, the drainage W2 is allowed to flow into the storage tank 10 from a relatively lower portion of the storage tank 10, and when the flow rate of the drainage W2 is relatively high, the drainage W2 is used. It can flow into the storage tank 10 from both a relatively lower portion and a relatively upper portion of the storage tank 10.

The height of the portion of the overflow pipe 12 connected to the storage tank 10 is located above the height of the portion of the drainage pipe main body 71 connected to the storage tank 10. The position of the upper end of the drainage W2 stored in the storage tank 10 exceeds the height of the portion of the drainage pipe main body 71 connected to the storage tank 10, and the supernatant liquid in the drainage W2 tends to flow back to the drainage pipe main body 71 to some extent. In some cases. Even in such a case, the supernatant can be circulated to the downstream side through the overflow pipe 12 and the portion downstream of the portion connected to the overflow pipe 12 in the downstream drainage pipe 11.
The water supply unit 1A has a well 2, a water pumping unit 3, a supply unit 31, and a detachable pump unit 32. Further, the toilet bowl 4 is removable from the water pumping section 3 and the upstream drainage pipe 7, and the removable pump section 32 is removable from the supply section 31. Therefore, even in a situation where it is difficult to secure water such as in the event of a disaster, the groundwater W that can be stably supplied can be pumped up from the well 2 and used to make the receiving portion 41 of the toilet bowl 4 the groundwater W. The toilet bowl 4 can be used hygienically by washing with. In addition, the toilet bowl 4 and the detachable pump portion 32 can be removed from the ground surface G at normal times when no disaster has occurred.

Although one embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and the configuration is changed, combined, or deleted without departing from the gist of the present invention. Etc. are also included.
For example, in the above embodiment, the upstream drainage pipe 7 does not have to have a branch pipe 72.
The height of the portion of the overflow pipe 12 connected to the storage tank 10 is located equal to or lower than the height of the portion of the drainage pipe main body 71 connected to the storage tank 10. good.
The toilet bowl 4 may be fixed to the water pumping section 3 and the upstream drainage pipe 7, or the detachable pump section 32 may be fixed to the supply section 31.
The number of toilet bowls 4 provided in the storage type disaster flush toilet system 1a may be one.

The angle of the downward slope of the horizontal pipe 74 toward the storage tank 10 is not particularly limited, and should be appropriately selected according to the place where the storage type disaster flush toilet system 1a is installed and the number of toilet bowls 4 to be installed. Just do it. That is, if the downward gradient of the horizontal pipe 74 is increased, the speed at which the groundwater W flows can be increased, and a large amount of excrement can be treated at once.

Further, if the depth of the well 2 is shallow and the water surface of the groundwater W is a shallow well within 7 m from the ground surface G, the structure is not limited to the structure using the pumping pipe 311 as in the present embodiment. For example, a structure may be configured in which a plurality of connecting pipes 314 connected to the detachable pump portion 32 are inserted into the well casing 21 without providing the water storage tank 312. With such a structure, the groundwater W in the well 2 can be directly pumped from the connecting pipe 314 and supplied to the detachable pump unit 32. Therefore, the configuration of the water storage tank 312, the deep well pump unit 313, and the like becomes unnecessary, and a flush toilet can be configured with a simple structure.

Further, the fixed portion 5 is not limited to a shape formed flush with the ground surface G as in the present invention, and may be formed so as to protrude upward from the ground surface G. The fixed portion 5 may be able to stably connect the toilet bowl 4 and the detachable pump portion 32 to the upstream drainage pipe 7 and the connection pipe 314.
For example, it is possible to effectively utilize the ground surface G on which the storage type flush toilet system 1a is installed, such as using it as a parking lot or a bicycle parking lot in normal times when no disaster occurs.
The storage type flush toilet system 1a does not have to include the fixed portion 5 and the tent portion 6.

1a ... Flush toilet system for storage type disaster 1A ... Water supply section 2 ... Well 4 ... Toilet bowl 7 ... Upstream drainage pipe 10 ... Storage tank (storage section) 11 ... Downstream drainage pipe 12 ... Overflow pipe (overflow pipe) 13 ... Opening and closing Valve 31 ... Supply part 32 ... Detachable pump part 41 ... Receiving part 71 ... Drainage pipe body 72 ... Branch pipe W ... Ground water W2 ... Drainage

Claims (4)

The water supply unit that supplies water and
A toilet bowl having a receiving part for receiving excrement and having the receiving part washed with the water supplied from the water supply part.
The drainage discharged from the toilet bowl is distributed, and the upstream drainage pipe buried in the ground and
A storage unit connected to the upstream drainage pipe and storing the drainage,
A downstream drainage pipe that is connected to the reservoir and through which the drainage discharged from the reservoir flows.
An overflow pipe connected to a portion of the storage portion above the portion connected to the downstream drainage pipe and a portion connected to the downstream drainage pipe to which the drainage discharged from the storage portion flows.
An on-off valve that opens and closes a portion of the downstream drainage pipe between the portion connected to the storage portion and the portion connected to the overflow pipe.
A retractable disaster flush toilet system equipped with. The upstream drainage pipe
The drainage pipe main body connected to the toilet bowl and the storage unit, respectively,
A portion of the storage portion below the portion connected to the drainage pipe main body, and a branch pipe connected to the drainage pipe main body, respectively.
The storage type disaster flush toilet system according to claim 1. The storage-type disaster according to claim 2, wherein the height of the portion of the overflow pipe connected to the storage portion is located above the height of the portion of the drain pipe main body connected to the storage portion. Flush toilet system. The water supply unit
Well and
A water pumping unit that pumps groundwater, which is the water, from the well,
The supply unit that supplies the groundwater to the surface of the earth,
It has a detachable pump unit that is detachably connected to the supply unit on the ground surface.
The storage-type flush toilet system according to any one of claims 1 to 3, wherein the toilet bowl is detachably connected to the water pumping portion and the upstream drainage pipe.

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