JP2022021013A - Water storage device and piping system - Google Patents

Abstract

To store more water than the maximum amount of water that can be stored in a hollow body.SOLUTION: A water storage device 20 comprises an upper cylinder portion 22 in which a water storage port 25 opened upward is formed and the upper end is arranged on a ground G, a bottomed lower cylinder portion 23 that is continuous with the upper cylinder portion 22 and can store water and has an outlet 26 formed, a hollow body 21 to be buried in the ground, an opening and closing mechanism 30 that can open and close the outlet 26, and a hollow extended storage unit 40 that can be attached to the body 21 and communicates with the inside of the body 21 when attached to the body 21.SELECTED DRAWING: Figure 4

Description

The present invention relates to a water storage device and a piping system.

When a disaster such as an earthquake occurs, many people evacuate to evacuation areas such as schools and parks. Patent Document 1 discloses a temporary toilet system that is buried in an evacuation area and to which a temporary toilet having a toilet bowl and a temporary hut is attached in the event of a disaster.

The temporary toilet system disclosed in Patent Document 1 includes a storage means for storing water and a drainage pipe having one end connected to the storage means and the other end connected to the sewage main. The storage means has a storage body having a storage space for storing water, an outlet formed in the storage body and connected to a drainage pipe, and a gate valve for opening and closing the outlet. Multiple temporary toilets are attached to the drainage pipe.

In the event of a disaster, defecation is performed in a temporary toilet, and sewage including defecation is discharged to a drain pipe and temporarily stored in the drain pipe. When draining the sewage stored in the drain pipe to the sewage main, the gate valve of the storage means is operated to open the outlet, and the water stored in the storage space is poured into the drain pipe. This allows the sewage stored in the drainage pipe to flow to the sewage main along the flow of water from the storage means.

Japanese Unexamined Patent Publication No. 2018-114275

By the way, temporary toilet systems are installed in various places. The number of temporary toilets to be attached to the drainage pipe, the size of the diameter of the drainage pipe, and the length of the drainage pipe are determined according to the place where the temporary toilet system is installed. Depending on the number of temporary toilets, the size of the drain pipe diameter, and the length of the drain pipe, the amount of water required to flush the sewage such as defecation discharged from the temporary toilet to the sewer main at one time (hereinafter, necessary storage). The amount) is determined, and it is preferable that at least this required amount of water is stored in the storage space.

However, the maximum amount of water that can be stored in the storage space is predetermined according to the size of the storage space. Therefore, when the maximum amount is smaller than the above-mentioned required storage amount, it may not be possible to secure the amount of water required to flush the sewage discharged from the temporary toilet to the sewer main at one time.

For example, in order to store the required amount of water in the storage space, it is conceivable to increase the maximum amount of water that can be stored in the storage space. In order to increase the maximum amount itself, for example, it is conceivable to increase the storage space, that is, to increase the size of the storage body having the storage space. However, increasing the size of the storage body may increase the manufacturing cost required to manufacture the storage body and the construction cost required to dispose the enlarged storage body in the ground. Therefore, in order to suppress the increase in these costs, it is preferable that the storage body is as compact as possible.

The present invention has been made in view of this point, and an object thereof is to exceed the maximum amount of water that can be stored in the main body in a water storage device having a hollow main body that can store water. It is to provide a water storage device and a piping system capable of storing a large amount of water and making the main body compact.

The water storage device according to the present invention includes a main body, an opening / closing mechanism, and an extended storage unit. In the main body, a water storage port opened upward is formed, and the upper cylinder portion whose upper end is arranged on the ground is continuous with the upper cylinder portion, water can be stored, and an outlet is formed. It has a bottomed lower cylinder and is a hollow one buried in the ground. The opening / closing mechanism can open / close the outlet. The extended storage portion is a hollow one that can be attached to the main body and communicates with the inside of the main body when attached to the main body.

According to the water storage device, an extended storage portion is attached to the main body so as to communicate with the inside of the main body. As a result, in addition to storing water in the main body, water can be stored in the extended storage unit. Therefore, more water can be stored than the maximum amount of water that can be stored in the main body. Further, by attaching the extended storage portion to the main body without increasing the size of the main body, the amount of water that can be stored in the entire water storage device can be increased. Therefore, it is possible to increase the amount of water that can be stored while making the main body compact.

According to a preferred embodiment of the present invention, the extended storage portion is connected to the water storage port.

According to the above aspect, the extended storage portion is arranged above the main body. Therefore, when the water is stored in the water storage device, the water head pressure can be increased by storing the water up to the extended storage portion arranged at a position higher than the main body. Therefore, when the water is discharged from the outlet, the water stored in the water storage device can be discharged more vigorously.

According to another preferred embodiment of the present invention, the average of the inner diameter cross-sectional area of the extended storage portion is equal to or larger than the average of the inner diameter cross-sectional area of the main body.

According to the above aspect, more water can be stored in the extended storage unit. Therefore, the head pressure can be increased by storing more water in the extended storage portion. Further, by making the average of the inner diameter cross-sectional areas of the extended storage portion relatively large, the extended storage portion opens larger and upward. Therefore, the operator can easily operate the opening / closing mechanism through the extended storage unit.

According to another preferred embodiment of the present invention, the main body is formed with a communication port. The extended storage unit is connected to the communication port.

According to the above aspect, the extended storage portion can be communicated with the inside of the main body through the communication port. Therefore, while the operator can inspect the inside of the main body through the water storage port, it is possible to store more water than the maximum amount of water that can be stored in the main body.

According to another preferred aspect of the present invention, the extended storage portion includes a connection portion in which a connection port connected to the communication port is formed, and a tubular main body cylinder portion having one end connected to the connection portion. And a closing portion that closes the other end of the main body cylinder portion.

According to the above aspect, the extended storage portion has a cylindrical shape with the other end closed. Therefore, even when the extended storage unit is attached to the main body so as to be arranged sideways, water can be stored in the extended storage unit.

According to another preferred aspect of the present invention, the main body cylinder portion is inclined downward toward the communication port.

According to the above aspect, since the main body cylinder portion is inclined downward toward the communication port, the water stored in the extension storage portion is easily flowed toward the communication port and is stored in the extension storage portion. It is possible to make it difficult for the accumulated water to stay in the extended storage area. Further, since the main body cylinder portion is inclined downward toward the communication port, the water stored in the extended storage portion can be vigorously flowed from the communication port toward the inside of the main body. Therefore, water can be discharged vigorously from the outlet.

According to another preferred embodiment of the present invention, the communication port is arranged at a position higher than the upper end of the outlet.

According to the above aspect, the extended storage portion can be arranged at a position higher than the outlet. Therefore, the head pressure can be increased by storing water up to the extended storage portion arranged at a position higher than the outlet. Therefore, when the water is discharged from the outlet, the water stored in the water storage device can be discharged more vigorously.

According to another preferred embodiment of the present invention, the diameter of the communication port is larger than the diameter of the outlet.

According to the above aspect, when the outlet is closed by the opening / closing mechanism, water is stored in the main body and the extended storage portion. At this time, by making the diameter of the communication port relatively large, water can easily enter the extended storage portion through the communication port. Therefore, it is easy to fill the extended storage part with water. When the outlet is opened by the opening / closing mechanism, the water stored in the main body and the extended storage unit is discharged from the outlet. At this time, since the diameter of the outlet is smaller than the diameter of the communication port, the flow velocity of the water discharged from the outlet can be made relatively high. Therefore, the water stored in the main body and the extended storage portion can be vigorously discharged from the outlet.

The piping system according to the present invention includes any of the above water storage devices connected to a water supply means for supplying water, and a pipeline. The pipeline is connected to one or more of the upstream end connected to the outlet of the water storage device, the downstream end connected to the sewage main, and the upstream end and the downstream end. It has a main part to which a temporary toilet can be attached.

According to the above aspect, the amount required to flush the sewage discharged from the temporary toilet to the sewage main at one time (required storage amount) is the maximum amount of water that can be stored in the main body of the water storage device (maximum storage amount). By attaching the extended storage unit to the main body of the water storage device, water can be stored in the extended storage unit other than the main body even in the case of more cases. Therefore, even when the required storage amount is larger than the maximum storage amount, the required storage amount of water can be stored in the main body of the water storage device and the extended storage portion.

According to another preferred embodiment of the present invention, the average inner diameter of the main body of the water storage device is smaller than five times the average inner diameter of the pipeline.

According to the above aspect, the size of the main body of the water storage device is made compact so that the average of the inner diameters of the main body is smaller than 5 times the average of the inner diameter of the pipeline, and the extended storage portion is the main body. By attaching to, the amount of water that can be stored in the water storage device can be increased.

According to the present invention, in a water storage device provided with a main body capable of storing water, more water can be stored than the maximum amount of water that can be stored in the main body, and the main body can be made compact. It is possible to provide a water storage device that can be used, and a piping system.

It is a front view schematically showing the piping system which concerns on 1st Embodiment. It is a front sectional view of the water storage device which concerns on 1st Embodiment, and is the figure which shows the state which the outlet is closed. It is a front sectional view of the water storage device which concerns on 1st Embodiment, and is the figure which shows the state which the outlet is opened. It is a front sectional view of the water storage device which concerns on 1st Embodiment, and is the figure which shows the state which extended storage part was attached to the main body. It is a front sectional view of the water storage device which concerns on 2nd Embodiment, and is the figure which shows the state which the communication port was formed in the main body. It is a front sectional view of the water storage device which concerns on 2nd Embodiment, and is the figure which shows the state which extended storage part was attached to the main body.

Hereinafter, embodiments of a piping system including a water storage device according to the present invention will be described with reference to the drawings. However, the embodiments described below are merely one embodiment of the present invention, and are not intended to limit the present invention, as a matter of course.

<First Embodiment>
FIG. 1 is a front view schematically showing the piping system 1 according to the first embodiment. The water storage device 20 according to the present embodiment is one of the members constituting the piping system 1, and temporarily flows water for flowing sewage such as defecation discharged from the temporary toilet 4 toward the sewage main 8. It is to be stored in. Hereinafter, the outline of the piping system 1 will be described, and then the water storage device 20 according to the present embodiment will be described in detail.

The piping system 1 shown in FIG. 1 is used as a system in which a temporary toilet 4 is installed in the event of a disaster such as an earthquake, and sewage such as defecation discharged from the temporary toilet 4 is discharged to the sewage main 8. The piping system 1 includes, for example, a water supply tank 10, a water storage device 20, a pipeline 50, and a drainage system 60.

The water supply tank 10 is a tank in which water flowing through the pipeline 50 is stored. The water supply tank 10 is an example of a water supply means. For example, rainwater is stored in the water supply tank 10. However, the water supply tank 10 may be stored with water, and may be stored with relatively clean water containing no foreign matter, for example, instead of rainwater. The water supply tank 10 is formed with a water supply port 11 from which the water inside is discharged. Although detailed description here is omitted, the water in the water supply tank 10 is supplied to the water storage device 20 before being flowed into the pipeline 50.

The pipeline 50 is buried in the ground. The pipeline 50 may be composed of one pipe, or may be composed of a plurality of pipes and a joint connecting the plurality of pipes. The pipeline 50 has an upstream end portion 51, a downstream end portion 52, and a main portion 53. The upstream end 51 is connected to the water storage device 20. The downstream end portion 52 is arranged on the downstream side of the upstream end portion 51 and is connected to the sewage main pipe 8. The main portion 53 connects the upstream end portion 51 and the downstream end portion.

In the present embodiment, a temporary toilet 4 can be attached to the main portion 53 of the pipeline 50. For example, in the event of a disaster, a temporary toilet 4 is attached to the main section 53, and in a normal time other than a disaster, the temporary toilet 4 is removed from the main section 53. Here, a drainage drain 60 is provided in the middle of the main portion 53. The drainage basin 60 is provided with a vertical pipe 61 extending upward from the drainage basin 60. The toilet bowl 4a of the temporary toilet 4 is connected to the standing pipe 61. Sewage such as defecation discharged from the temporary toilet 4 is discharged to the pipeline 50 through the standing pipe 61 and the drainage pipe 60.

The number of temporary toilets 4 attached to the pipeline 50 is not particularly limited, and may be one or a plurality. The number of temporary toilets 4 attached to the pipeline 50 is determined according to the scale of the place where the piping system 1 is installed. Here, it is possible to connect the five temporary toilets 4 to the pipeline 50.

Next, the water storage device 20 will be described. The water storage device 20 temporarily stores the water supplied from the water supply tank 10, and discharges the stored water to the pipeline 50 as needed. The sewage such as defecation discharged from the temporary toilet 4 is discharged to the sewage main 8 along the flow of the water discharged from the water storage device 20. The water storage device 20 is buried in the ground.

In addition, in this embodiment, the water storage device 20 is realized by "masu" which can inspect the inside. However, the water storage device 20 is not limited to this. Although detailed description is omitted, the water storage device 20 may be realized by, for example, a joint.

2 and 3 are front sectional views of the water storage device 20. FIG. 2 shows a state in which the outlet 26 is closed. FIG. 3 shows a state in which the outlet 26 is open. As shown in FIG. 2, the water storage device 20 includes a main body 21 and an opening / closing mechanism 30.

The main body 21 is a bottomed tubular member and is a hollow member. Water can be stored in the main body 21. The main body 21 has an upper cylinder portion 22 and a lower cylinder portion 23.

The upper cylindrical portion 22 has a cylindrical shape with upper and lower openings, and constitutes the upper portion of the main body 21. A water storage port 25 is formed in the upper cylinder portion 22. The water storage port 25 is open upward. A lid (not shown) is detachably fitted to the water storage port 25. Water is supplied into the main body 21 through the water storage port 25. In the present embodiment, since the water storage device 20 is further realized, the water storage port 25 can be an inspection port used when inspecting the inside of the main body 21. In the present embodiment, the upper end of the upper cylinder portion 22 is arranged on the ground G. In other words, the height of the upper end of the upper cylinder portion 22 is the same as the height of the ground G.

The lower cylinder portion 23 has a bottomed cylinder shape with an opening at the upper side. The lower cylinder portion 23 is arranged below the upper cylinder portion 22 and constitutes the lower part of the main body 21. An outlet 26 is formed in the lower cylinder portion 23. The outlet 26 is located below the water reservoir 25. Here, the outlet 26 is formed on the side of the lower tubular portion 23 and opens toward the side. However, the position of the lower cylinder portion 23 on which the outlet 26 is formed is not particularly limited. The outlet 26 is formed, for example, at the bottom of the lower cylinder portion 23, and may be open downward.

A pipeline 50 is connected to the outlet 26, and more specifically, an upstream end portion 51 of the pipeline 50 is connected to the outlet 26. In the present embodiment, the lower cylinder portion 23 is provided with an outflow cylinder portion 27 extending from the periphery of the outflow port 26 in the lower cylinder portion 23 toward the pipeline 50. The upstream end portion 51 of the pipeline 50 is fitted into the outflow cylinder portion 27.

The main body 21 may be composed of one member or may be configured by assembling a plurality of members. In the present embodiment, the main body 21 is composed of a lid frame member 28a, a first cylindrical member 28b, a second tubular member 28c, and a closing member 28d. A lid (not shown) is attached to the lid frame member 28a. The upper end of the lid frame member 28a is at the same height as the ground G. The first tubular member 28b is arranged below the lid frame member 28a and is fitted to the lid frame member 28a. In the present embodiment, for example, the upper cylindrical portion 22 is configured by the lid frame member 28a and the first tubular member 28b.

The second tubular member 28c is arranged below the first tubular member 28b and is fitted with the first tubular member 28b. The second tubular member 28c is open upward and downward, but the portion that is open downward is closed by the closing member 28d. The closing member 28d is a container-shaped member and is fitted with the second tubular member 28c. In the present embodiment, for example, the lower cylindrical portion 23 is composed of the second cylindrical member 28c and the closing member 28d.

In this embodiment, the main body 21 is a relatively compact member. Here, as shown in FIG. 2, the diameter D1 of the main body 21 is smaller than 5 times the diameter D2 of the pipeline 50. In other words, the diameters of the upper cylinder portion 22 and the lower cylinder portion 23 of the main body 21 are smaller than five times the diameter D2 of the pipeline 50. As used herein, the term "diameter" means a diameter and an inner diameter. In the water storage device 20 shown in FIG. 2, the diameter D1 of the main body 21 is about twice the diameter D2 of the pipeline 50. However, the water storage device 20 shown in FIG. 2 is an example, and in reality, the diameter D1 of the main body 21 is large, for example, the diameter D1 of the main body 21 is larger than twice the diameter D2 of the pipeline 50 and has a diameter. It can be less than 5 times D2.

Further, in the present embodiment, the diameters of the cross sections at predetermined positions above and below the main body 21 may be different. For example, depending on the shape of the main body 21, the diameter of the upper portion of the main body 21 (for example, the upper cylinder portion 22) may be different from the diameter of the lower portion of the main body 21 (for example, the lower cylinder portion 23). Here, the average diameter D1 of the main body 21 (in other words, the average diameter of the main body 21) is 5 times the average diameter D2 of the pipeline 50 (in other words, 5 times the average diameter of the pipeline 50). Is also small. Further, the median value of the diameter D1 of the main body 21 is smaller than five times the median value of the diameter D2 of the pipeline 50.

The opening / closing mechanism 30 can open / close the outlet 26 formed in the lower cylinder portion 23. In the present embodiment, the opening / closing mechanism 30 is arranged inside the main body 21 and opens / closes the outlet 26 from the inside of the main body 21. However, the opening / closing mechanism 30 may be configured so that the outlet 26 can be opened / closed from the outside of the main body 21. In the present embodiment, the opening / closing mechanism 30 can open / close the outlet 26 by moving up / down in the main body 21.

The configuration of the opening / closing mechanism 30 is not particularly limited. In the present embodiment, the opening / closing mechanism 30 has a closing cylinder portion 31, a closing plate portion 32, a handle 33, and an operating cylinder portion 35. The closed cylinder portion 31 is a horizontally extended tubular member, and is open to the side. The closing plate portion 32 is arranged inside the closing cylinder portion 31 and has a plate shape extending vertically. The portion opened to the side of the closing cylinder portion 31 is closed by the closing plate portion 32. The handle 33 is provided on the upper part of the closing cylinder portion 31. The handle 33 extends upward from the closed cylinder portion 31, and the upper end portion is bent in the horizontal direction.

The handle 33 is operated by an operator on the ground using an operation jig (not shown). The shape of the operation jig is not particularly limited. The operation jig is, for example, a rod-shaped member having a hook-shaped lower portion. The upper part of the operation jig is arranged on the ground in a state where the hook-shaped lower part is hooked on the handle 33. The operator pulls up the operation jig with the hook-shaped lower portion hooked on the handle 33, so that the opening / closing mechanism 30 moves upward together with the handle 33. As a result, the opening / closing mechanism 30 can open the outlet 26.

In the present embodiment, a protrusion 34 protruding toward the outlet 26 is provided at the upper portion of the end (the end on the right side in FIG. 2) on the outlet 26 side of the closed cylinder portion 31. A protruding cylinder portion 29 is fitted in the outlet 26. A part of the protruding cylinder portion 29 protrudes inward of the main body 21 from the outlet 26. As shown in FIG. 2, the protrusion 34 of the closed cylinder portion 31 can abut on the protruding cylinder portion 29. Here, the downward movement of the opening / closing mechanism 30 is restricted by the protrusion 34 coming into contact with the protruding cylinder portion 29.

The operation cylinder portion 35 is for the operator to move the opening / closing mechanism 30 up and down in order to open / close the outlet 26 by the opening / closing mechanism 30. In the present embodiment, there are two means for moving the closing mechanism 30 up and down: the operation of the handle 33 and the operation of the operation cylinder portion 35. The operator can move the opening / closing mechanism 30 up and down by operating either the handle 33 or the operation cylinder portion 35.

The operation cylinder portion 35 is a tubular member extending up and down in the main body 21. The operation cylinder portion 35 is configured to be movable up and down in conjunction with the up and down movement of the opening / closing mechanism 30. In the present embodiment, the operation cylinder portion 35 is supported by the closing plate portion 32 of the opening / closing mechanism 30 via the support cylinder portion 38. The support cylinder portion 38 is a member extending in the horizontal direction. One end of the support cylinder 38 is connected to the operation cylinder 35, and the other end of the support cylinder 38 is connected to the closing plate 32.

In the present embodiment, the operation cylinder portion 35 has an upper opening 36 opened upward and a lower opening 37 opened downward. A cylindrical connection operation cylinder 39 is detachably connected to the upper opening 36. A closing cap (not shown) is attached to the upper end of the connection operation cylinder portion 39. When the connection operation cylinder portion 39 is connected to the upper opening 36, the upper portion of the connection operation cylinder portion 39 is arranged on the ground.

For example, when the operation cylinder portion 35 is operated to open and close the outlet 26 by the opening / closing mechanism 30, the connection operation cylinder portion 39 is connected to the upper opening 36 of the operation cylinder portion 35. A worker on the ground pulls up the upper part of the connection operation cylinder portion 39 arranged on the ground, so that the operation cylinder portion 35 moves upward together with the connection operation cylinder portion 39. As the operation cylinder portion 35 moves upward, the closing mechanism 30 moves upward and the outlet 26 is opened. The closing cap attached to the upper end of the connection operation cylinder 39 may be replaced with a T-shaped operation member 39a. The T-shaped operation member 39a is fitted into the opening at the upper end of the connection operation cylinder portion 39. The side end of the T-shaped operating member 39a projects outward from the connection operating cylinder portion 39. The operator improves the operability by grasping the T-shaped operation member 39a by hand and pulling up the connection operation cylinder portion 39.

On the other hand, when the outlet 26 is closed by the opening / closing mechanism 30, the operator pushes the connection operation cylinder portion 39 downward and moves the connection operation cylinder portion 39 and the operation cylinder portion 35 downward. As the operation cylinder portion 35 moves downward, the closing mechanism 30 moves downward, and the outlet 26 can be closed.

In the present embodiment, the opening / closing mechanism 30 can be moved between the open position P1 (see FIG. 3) and the closed position P2 (see FIG. 2) by the operator operating the handle 33 or the operation cylinder portion 35. It is configured in. As shown in FIG. 3, the opening position P1 is the position of the opening / closing mechanism 30 such that the closing cylinder portion 31 of the opening / closing mechanism 30 is located above the outlet 26. At the open position P1, the outlet 26 is in the open state. At the open position P1, the water stored in the main body 21 flows from the outlet 26 toward the pipeline 50.

On the other hand, the closed position P2 is, as shown in FIG. 2, the position of the opening / closing mechanism 30 when the protrusion 34 of the closed cylinder portion 31 and the protruding cylinder portion 29 fitted in the outlet 26 come into contact with each other. At the closing position P2, the outlet 26 is closed by the opening / closing mechanism 30. Therefore, the water stored in the main body 21 does not flow into the pipeline 50. At the closed position P2, the state in which water is stored in the main body 21 can be maintained.

In this embodiment, as shown in FIG. 1, a water supply pipe 12 is connected to the water supply port 11 of the water supply tank 10. A pump 13 is provided in the middle of the water supply pipe 12. In the present embodiment, when the water in the water supply tank 10 is supplied to the water storage device 20, the water supply pipe 12 is inserted into the main body 21 through the water supply port 25 of the water storage device 20. After that, the operator can operate the pump 13 to supply the water in the water supply tank 10 to the water storage device 20 through the water supply pipe 12.

By the way, the water stored in the main body 21 of the water storage device 20 is used when draining sewage such as defecation discharged from the temporary toilet 4 to the sewage main 8 as described above. It is preferable that the amount of water required to flush the sewage discharged from the temporary toilet 4 to the pipeline 50 at one time (hereinafter referred to as the required storage amount) is stored in the main body 21. This required storage amount varies depending on the place where the piping system 1 is installed. In other words, the required storage amount is determined according to the length of the pipeline 50, the size of the diameter of the pipeline 50, the number of temporary toilets 4, and the like. For example, when the pipeline 50 is long, the diameter of the pipeline 50 is large, or the number of temporary toilets 4 is large, the required storage amount is large.

The maximum amount of water that can be stored in the main body 21 (hereinafter referred to as the maximum storage amount) is predetermined according to the size of the main body 21. Here, when the required storage amount is larger than the maximum storage amount (required storage amount> maximum storage amount), the water required to flush the sewage discharged from the temporary toilet 4 to the pipeline 50 into the sewage main 8 at one time. Cannot be secured in the main body 21.

Here, in the present embodiment, even when the required storage amount is larger than the maximum storage amount, a sufficient amount of water is secured in the water storage device 20. FIG. 4 is a front sectional view of the water storage device 20 and is a diagram showing a state in which the extended storage unit 40 is attached to the main body 21. In order to secure a sufficient amount of water in the water storage device 20, the water storage device 20 further includes an extended storage unit 40 as shown in FIG. The extended storage unit 40 can store water together with the main body 21. The extended storage unit 40 can be attached to the main body 21. The extended storage unit 40 is removable from the main body 21. The extended storage unit 40 is a hollow member that communicates with the inside of the main body 21 when attached to the main body 21.

In the present embodiment, the extended storage unit 40 is connected to the water storage port 25 of the main body 21. Here, the extended storage unit 40 extends upward from the water storage port 25 and is arranged on the ground. The extended storage unit 40 is not buried in the ground. The shape and configuration of the extended storage unit 40 are not particularly limited. In the present embodiment, the extended storage unit 40 is a cylindrical member extending vertically.

The extended storage portion 40 has a connection portion 41, an opening portion 42, and a main body cylinder portion 43. The connecting portion 41 constitutes the lower part of the extended storage portion 40. The connection portion 41 is formed with a connection port 45 that opens downward. The water storage port 25 of the main body 21 is connected to the connection port 45. The connection port 45 and the water storage port 25 communicate with each other.

In the present embodiment, when the extension storage portion 40 is attached to the main body 21, the connection portion 41 is fitted into the upper cylinder portion 22 of the main body 21. An annular sealing member 47 arranged along the circumferential direction of the connecting portion 41 is provided around the connecting portion 41. The seal member 47 is made of rubber, for example, and when the connection portion 41 is fitted into the upper cylinder portion 22, the sealing property between the connection portion 41 and the upper cylinder portion 22 is improved.

The opening 42 constitutes the upper part of the extended storage portion 40, and is arranged above the connecting portion 41. The opening 42 is formed with an upper opening 46 that opens upward. The upper opening 46 is arranged above the connection port 45. The main body cylinder portion 43 connects the connecting portion 41 and the opening portion 42, and extends vertically.

In the present embodiment, a step portion 48 is provided between the connection portion 41 and the main body cylinder portion 43. The diameter of the step portion 48 is larger than the diameter of the connection portion 41. When the extended storage portion 40 is attached to the main body 21, the step portion 48 comes into contact with the upper end of the upper cylinder portion 22 of the main body 21 and is placed on the upper end of the upper cylinder portion 22. This makes it possible to stabilize the posture of the extended storage unit 40.

Further, in the present embodiment, the main body cylinder portion 43 is provided with a diameter-expanded portion 49. The diameter-expanded portion 49 is configured to have a larger diameter toward the upper side. Here, the connection port 45 is smaller than the upper opening 46. However, the connection port 45 may have the same size as the upper opening 46 or may be larger than the upper opening 46.

The size of the extended storage unit 40 is not particularly limited. For example, a plurality of extended storage units 40 having different sizes may be prepared in advance, and the extended storage unit 40 to be attached to the main body 21 may be selected according to the required storage amount of the piping system 1. The extended storage unit 40 may be cut and used.

In the present embodiment, as shown in FIG. 4, the diameter D3 of the portion of the extended storage portion 40 excluding the connection portion 41 is equal to or larger than the diameter D1 of the main body 21 of the water storage device 20. Here, the average of the diameter D3 of the extended storage portion 40 including the connection portion 41 is equal to or larger than the average of the diameter D1 of the main body 21. Further, the median value of the diameter D3 of the extended storage portion 40 including the connecting portion 41 is equal to or larger than the median value of the diameter D1 of the main body 21.

In the present embodiment, the inner diameter cross-sectional area of the extended storage portion 40 including the connecting portion 41 is equal to or larger than the inner diameter cross-sectional area of the main body 21. Here, the average of the inner diameter cross-sectional area of the extended storage portion 40 including the connecting portion 41 is equal to or larger than the average of the inner diameter cross-sectional area of the main body 21. The median inner diameter cross-sectional area of the extended storage portion 40 including the connecting portion 41 is equal to or greater than the median inner diameter cross-sectional area of the main body 21. Here, the "inner diameter cross-sectional area" is the area inside the inner diameter of the cross section in the transverse direction (direction orthogonal to the central axis) of the tubular member, that is, the area of the hole in the cross section in the transverse direction of the tubular member. It means that.

In this embodiment, the water storage device 20 is used in the following procedure. In the event of a disaster, when the temporary toilet 4 is connected to the pipeline 50 and used, the extended storage unit 40 is attached to the main body 21. Here, the operator fits the connection portion 41 of the extension storage portion 40 into the upper cylinder portion 22 of the main body 21. As a result, the connection port 45 of the extended storage unit 40 can be connected to the water storage port 25 of the main body 21, and the inside of the extended storage unit 40 and the inside of the main body 21 communicate with each other. When the temporary toilet 4 is not in use, the extended storage unit 40 may be removed from the main body 21.

In the present embodiment, when water is supplied from the water supply tank 10 to the water storage device 20 with the extended storage unit 40 attached to the main body 21, the water supply pipe 12 connected to the water supply tank 10 is opened at the top of the extended storage unit 40. It is inserted from 46 into the extended storage unit 40 and the main body 21. After that, the operator operates the pump 13 (see FIG. 1) provided in the water supply pipe 12. As a result, the water in the water supply tank 10 is supplied to the main body 21 through the water supply pipe 12. Here, when the water stored in the main body 21 becomes full and the maximum storage amount is exceeded, the water is stored in the extended storage unit 40.

As described above, in the present embodiment, as shown in FIG. 1, the piping system 1 includes a water storage device 20 connected to a water supply tank 10 for supplying water, and a pipeline 50. As shown in FIG. 4, the water storage device 20 includes a main body 21, an opening / closing mechanism 30, and an extended storage unit 40. The main body 21 is continuous with the upper cylinder portion 22 having a water storage port 25 opened upward and the upper end thereof being arranged on the ground G, and is capable of storing water and has an outlet. It has a bottomed lower tubular portion 23 on which 26 is formed. The main body 21 is a hollow one buried in the ground. As shown in FIGS. 2 and 3, the opening / closing mechanism 30 can open / close the outlet 26. As shown in FIG. 4, the extended storage portion 40 is a hollow one that can be attached to the main body 21 and communicates with the inside of the main body 21 when attached to the main body 21. As shown in FIG. 1, the pipeline 50 has an upstream end 51 (see FIG. 2) connected to the outlet 26 of the water storage device 20, a downstream end 52 connected to the sewage main 8, and an upstream end. It has a main portion 53 connected to a portion 51 and a downstream end portion 52. One or a plurality of temporary toilets 4 can be attached to the main portion 53.

According to the present embodiment, as shown in FIG. 4, the extended storage unit 40 is attached to the main body 21 so as to communicate with the inside of the main body 21. As a result, in addition to storing water in the main body 21, water can be stored in the extended storage unit 40. Therefore, more water can be stored than the maximum amount of water that can be stored in the main body 21. In the present embodiment, the required storage amount, which is the amount required to flush the sewage discharged from the temporary toilet 4 to the sewage main 8 at one time, is larger than the maximum storage amount of water that can be stored in the main body 21. Even if there is, by attaching the extended storage unit 40 to the main body 21, water can be stored in the extended storage unit 40 other than the main body 21. Therefore, even when the required storage amount is larger than the maximum storage amount, the required storage amount of water can be stored in the main body 21 and the extended storage unit 40. Therefore, sewage such as defecation discharged from the temporary toilet 4 can be flushed to the sewage main 8 at once by using the water stored in the water storage device 20. As a result, it is possible to make it difficult to leave defecation in the pipeline 50.

Further, in the present embodiment, the amount of water that can be stored in the entire water storage device 20 can be increased by attaching the extension storage unit 40 to the main body 21 without enlarging the main body 21 of the water storage device 20, which is necessary. The amount of storage can be secured. Therefore, it is possible to increase the amount of water that can be stored while making the main body 21 compact.

In the present embodiment, as shown in FIG. 4, the extended storage unit 40 is connected to the water storage port 25 of the main body 21. As a result, the extended storage unit 40 is arranged above the main body 21. Therefore, when the water is stored in the water storage device 20, the head pressure can be increased by storing the water up to the extended storage unit 40 arranged at a position higher than the main body 21. Therefore, when the water is discharged from the outlet 26, the water stored in the water storage device 20 can be discharged more vigorously. Therefore, the sewage in the pipeline 50 is likely to flow to the sewage main 8 along the flow of the water that has flowed vigorously.

Further, in the present embodiment, the average of the inner diameter cross-sectional area of the extended storage portion 40 is equal to or larger than the average of the inner diameter cross-sectional area of the main body 21. As a result, more water can be stored in the extended storage unit 40. Therefore, the head pressure can be increased by storing more water in the extended storage unit 40. Further, in the present embodiment, by making the average of the inner diameter cross-sectional area of the extended storage portion 40 (in other words, the average of the inner diameter D3 of the extended storage portion 40) relatively large, the extended storage portion 40 moves upward more greatly. Will open. Therefore, the operator can easily operate the operation cylinder portion 35 through the extension storage portion 40, so that the opening / closing mechanism 30 can be easily operated.

In the present embodiment, the extended storage portion 40 has a connection portion 41 in which a connection port 45 connected to the water storage port 25 is formed, and an opening 42 in which an upper opening 46 arranged above the connection port 45 is formed. And a main body cylinder portion 43 that connects the connection portion 41 and the opening portion 42. Here, the extended storage unit 40 is a tubular member extending upward from the water storage port 25. Therefore, by storing water up to the extended storage unit 40, the water level can be raised, and as a result, the head pressure can be further raised. Further, in the present embodiment, since the upper end of the extended storage portion 40 is opened by the upper opening 46, when the inside of the main body 21 is inspected, the inside of the main body 21 can be inspected through the upper opening 46.

In the present embodiment, as shown in FIG. 2, the average of the inner diameter D1 of the main body 21 of the water storage device 20 is smaller than the average of the inner diameter D2 of the pipeline 50. As a result, the size of the main body 21 of the water storage device 20 is extended while being made compact so that the average of the inner diameter D1 of the main body 21 is smaller than the average of the inner diameter D2 of the pipeline 50. By attaching the storage unit 20 to the main body 21, the amount of water that can be stored in the water storage device 20 can be increased.

<Second Embodiment>
5 and 6 are front sectional views of the water storage device 120 according to the second embodiment. Next, the water storage device 120 according to the second embodiment will be described. As shown in FIG. 6, in the water storage device 120 according to the second embodiment, the position of the main body 21 to which the extended storage unit 140 is attached is different from that of the water storage device 20 according to the first embodiment. Similar to the water storage device 20 of the first embodiment, the water storage device 120 according to the present embodiment is connected to the water supply tank 10 and the pipeline 50, and can flow water toward the pipeline 50. be.

In the present embodiment, the extended storage unit 140 is attached to the side portion of the main body 21 of the water storage device 120 and is buried in the ground. Here, the communication port 126 is formed in the main body 21. The communication port 126 is formed on the side surface of the main body 21 and opens toward the side. In the present embodiment, the communication port 126 is formed in the upper cylindrical portion 22 of the main body 21 (here, the first tubular member 28b), but the lower tubular portion 23 of the main body 21 (for example, the second tubular member 28c). It may be formed in.

The communication port 126 is arranged at a position higher than the outlet 26 of the main body 21. The communication port 126 is arranged at a position higher than the upper end of the outlet 26. In the present embodiment, the lower end of the communication port 126 is arranged at a position higher than the upper end of the outlet 26. The communication port 126 is smaller than the outlet 26. In other words, the diameter of the communication port 126 is smaller than the diameter of the outlet 26. However, the communication port 126 may have the same size as the outlet 26 or may be larger than the outlet 26. The diameter of the communication port 126 may be larger than the diameter of the outlet 26.

The extended storage unit 140 is connected to the communication port 126 formed in the main body 21. The extended storage unit 140 is arranged on the side of the main body 21. In the present embodiment, the extended storage portion 140 is a cylindrical member having one end closed. The extended storage unit 140 extends laterally from the main body 21.

The extended storage portion 140 has a connecting portion 141, a main body cylinder portion 142, and a closed portion 143. The connection portion 141 is a portion connected to the communication port 126 of the main body 21. Here, the connection portion 141 is fitted in the communication port 126. The connection portion 141 is formed with a connection port 145 that is open to the side. The connection port 145 is connected to the communication port 126 and communicates with the communication port 126.

The main body cylinder portion 142 is inclined downward toward the communication port 126. In other words, the main body cylinder portion 142 is inclined downward from the closed portion 143 toward the connecting portion 141. One end of the main body cylinder portion 142 is connected to the connecting portion 141. The closing portion 143 is connected to the other end of the main body cylinder portion 142. The closing portion 143 closes the other end of the main body cylinder portion 142. The closing portion 143 is arranged at a position higher than the connecting portion 141.

In the present embodiment, as shown in FIG. 5, the diameter D4 of the communication port 126 to which the extended storage unit 140 is connected is larger than the diameter D5 of the outlet 26 of the water storage device 120. In other words, the area of the communication port 126 is larger than the area of the outlet 26. The diameter D4 of the communication port 126 is larger than the diameter of the outflow cylinder portion 27 connected to the outlet 26. Further, the diameter D4 of the communication port 126 is smaller than the diameter D1 of the main body 21 (see FIG. 2). In other words, the diameter of the connection port 145 of the extension storage unit 140 connected to the communication port 126 is smaller than the diameter D1 of the main body 21. As a result, the extended storage portion 140 can be attached to the side portion of the main body 21.

Although not shown, the diameter of the main body cylinder portion 142 of the extended storage portion 140 is larger than the diameter D5 of the outlet 26 and larger than the diameter of the outflow cylinder portion 27. Further, the diameter of the main body cylinder portion 142 is smaller than the diameter D1 of the main body 21.

In the present embodiment, the water storage device 120 includes a through-cylinder portion 148. The through-cylinder portion 148 is for allowing the air inside the extended storage portion 140 to escape to the ground. The through-cylinder portion 148 is a tubular member. Here, the through-cylinder portion 148 extends upward from the extended storage portion 140. One end of the communication cylinder unit 148 is connected to the extension storage unit 140 (specifically, the main body cylinder unit 142), and the communication cylinder unit 148 and the extension storage unit 140 are in communication with each other. The other end of the through-cylinder portion 148 is open toward the ground. The other end of the through-cylinder portion 148 is open upward. The through-cylinder portion 148 can be omitted.

In the present embodiment, the extension storage unit 140 is attached to the main body 21 in a state where the main body 21 of the water storage device 120 is buried in the ground. Before attaching the extended storage portion 140, the communication port 126 is not formed in the main body 21. The method of attaching the extended storage unit 140 to the main body 21 includes a digging step, a forming step, a connecting step, and a burying step.

Here, first, in the digging process, the soil in the underground portion where the extended storage portion 140 is arranged is dug up. For example, the soil in the underground part located on the side of the main body 21 is dug up. Next, in the forming step, as shown in FIG. 5, the communication port 126 is formed in the main body 21.

After the forming step, in the connecting step, as shown in FIG. 6, the extended storage section 140 and the through-cylinder section 148 are connected. Here, in a state where the main body cylinder portion 142 of the extended storage portion 140 is inclined downward toward the communication port 126, the extended storage portion 140 is arranged in the space dug up above, and the connection portion 141 of the extended storage portion 140 is arranged. The connection port 145 is connected to the communication port 126 of the main body 21. After that, one end of the through-cylinder portion 148 is connected to the extension storage portion 140, and the other end of the through-cylinder portion 148 is opened toward the ground, so that the through-cylinder portion 148 is arranged.

Next, in the burying step, the extended storage portion 140 and the through-cylinder portion 148 are covered with soil, and the extended storage portion 140 and the through-cylinder portion 148 are buried. At this time, the through-cylinder portion 148 may be embedded so that the other end thereof opens to the ground. As described above, the extended storage unit 140 can be attached to the main body 21.

Also in this embodiment, as in the first embodiment, water can be stored in the extended storage unit 140 in addition to storing water in the main body 21 of the water storage device 120. Therefore, more water can be stored than the maximum amount of water that can be stored in the main body 21. Further, even if the required storage amount of water required to flush the sewage discharged from the temporary toilet 4 is larger than the maximum storage amount of the main body 21, the main body 21 of the water storage device 20 and the extended storage unit The required amount of water can be stored in 140. Therefore, sewage such as defecation discharged from the temporary toilet 4 can be flushed to the sewage main 8 at once by using the water stored in the water storage device 120.

In the present embodiment, as shown in FIG. 6, the communication port 126 is formed in the main body 21. The extended storage unit 140 is connected to the communication port 126. As a result, the extension storage unit 140 can be communicated with the inside of the main body 21 through the communication port 126. Therefore, while the operator can inspect the inside of the main body 21 through the water storage port 25, more water than the maximum amount of water that can be stored in the main body 21 can be stored.

In the present embodiment, the extended storage portion 140 includes a connection portion 141 in which a connection port 145 connected to the communication port 126 is formed, a cylindrical main body cylinder portion 142 having one end connected to the connection portion 141, and a main body cylinder. It has a closing portion 143 that closes the other end of the portion 142. Here, the extended storage portion 140 has a cylindrical shape with the other end closed. Therefore, even when the extended storage unit 140 is attached to the main body 21 so as to be arranged sideways, water can be stored in the extended storage unit 140.

In the present embodiment, the main body cylinder portion 142 of the extended storage portion 140 is inclined downward toward the communication port 126. This makes it easier for the water stored in the extended storage unit 140 to flow toward the communication port 126, and makes it difficult for the water stored in the extended storage unit 140 to stay in the extended storage unit 140. Further, since the main body cylinder portion 142 is inclined downward toward the communication port 126, the water stored in the extended storage portion 140 can be vigorously flowed from the communication port 126 toward the inside of the main body 21. .. Therefore, water can be discharged vigorously from the outlet 26. Therefore, since the water discharged vigorously flows in the pipeline 50, the sewage in the pipeline 50 discharged from the temporary toilet 4 is flowed to the sewage main 8 along the flow of the water flowing vigorously. It will be easier.

In the present embodiment, the communication port 126 is formed on the side portion of the main body 21 and opens toward the side. As a result, the extended storage unit 140 connected to the communication port 126 is arranged on the side of the main body 21. Therefore, since the extended storage portion 140 can be arranged at a shallow position in the ground, the amount of soil excavated when the extended storage portion 140 is arranged can be reduced. Therefore, the work time for digging up the soil can be shortened. Further, the communication port 126 to which the extension storage unit 140 is connected is formed on the side portion of the main body 21, so that the extension storage unit 140 is arranged in a state of extending laterally from the communication port 126. Therefore, the extended storage unit 140 can be buried in the ground. Therefore, since the extended storage unit 140 does not have to be arranged on the ground, a space on the ground can be secured. The secured space can be used as a passage through which people pass, or can be used as a space for installing a temporary toilet 4. Therefore, the space on the ground can be effectively utilized. Further, even if it is not possible to secure a place to install the extended storage unit 140 on the ground, the extended storage unit 140 can be installed underground.

In the present embodiment, the communication port 126 is arranged at a position higher than the upper end of the outlet 26. As a result, the extended storage unit 140 can be arranged at a position higher than the outlet 26. Therefore, the head pressure can be increased by storing water up to the extended storage unit 140 arranged at a position higher than the outlet 26. Therefore, when the water is discharged from the outlet 26, the water stored in the water storage device 20 can be discharged more vigorously.

In this embodiment, as shown in FIG. 5, the diameter D4 of the communication port 126 is larger than the diameter D5 of the outlet 26. When the outlet 26 is closed by the opening / closing mechanism 30, water is stored in the main body 21 and the extended storage unit 140. At this time, by relatively increasing the diameter D4 of the communication port 126, water can easily enter the extended storage portion 140 through the communication port 126. Therefore, it is easy to fill the extended storage unit 140 with water. In the present embodiment, when the outlet 26 is opened by the opening / closing mechanism 30, the water stored in the main body 21 and the extended storage unit 140 is discharged from the outlet 26. At this time, since the diameter D5 of the outlet 26 is smaller than the diameter D4 of the communication port 126, the flow velocity of the water discharged from the outlet 26 can be made relatively high. Therefore, the water stored in the main body 21 and the extended storage unit 140 can be vigorously discharged from the outlet 26. Therefore, the sewage contained in the sewage is less likely to stay in the pipeline 50.

In the present embodiment, the through-cylinder portion 148 connects the inside of the extended storage portion 140 to the ground. As a result, if air is accumulated in the extended storage portion 140, the air is released from the through-cylinder portion 148 to the ground. Therefore, more water can be stored in the extended storage unit 140.

As described above, in the second embodiment, the communication port 126 is formed on the side of the main body 21, and the extended storage portion 140 connected to the communication port 126 is arranged on the side of the main body 21. However, the communication port 126 may be formed at the bottom of the main body 21 and may be opened downward. The extended storage unit 140 may be arranged below the main body 21.

In the second embodiment, the extended storage portion 140 was buried in the ground. However, a part of the extended storage unit 140 may be located on the ground.

In each of the above embodiments, the extended storage portions 40 and 140 are tubular members. However, the shape of the extended storage portion according to the present invention is not limited to a cylindrical shape as long as it is a hollow member. The extended storage portion may be, for example, a rectangular parallelepiped member or a spherical member.

In each of the above embodiments, the water supply means is the water supply tank 10. However, the water supply means according to the present invention is not limited to the water supply tank 10, and may be any one that can store water and supply water to the water storage devices 20 and 120. For example, the water supply means may be a groundwater facility located underground. In this case, water such as groundwater in the groundwater facility may be supplied to the water storage devices 20 and 120 via, for example, a hose. Further, the water supplied to the water storage devices 20 and 120 includes rainwater. Therefore, the water supply means may be a rainwater tank in which rainwater is stored. Further, the water supply means may be a river, a sea, a pond, or the like. In this case, water from the river, the sea, the pond, or the like may be supplied to the water storage devices 20 and 120 via a hose or the like. Further, the water supply means is not limited to the fixed type, and may be a mobile type. The water supply means may be a water supply vehicle in which water is stored.

1 Piping system 4 Temporary toilet 20 Water storage device 21 Main body 22 Upper cylinder part 23 Lower cylinder part 25 Water storage port 26 Outlet 30 Opening and closing mechanism 40 Extension storage part 41 Connection part 42 Opening part 43 Main body cylinder part 45 Connection port 46 Upper opening 50 pipes Road 51 Upstream end 52 Downstream end 53 Main part 126 Communication port 140 Extension storage part 141 Connection part 142 Main body cylinder part 143 Closure part 148 Communication cylinder part

Claims (10)

A bottomed bottom where a water storage port opened upward is formed and the upper end is continuous with the upper cylinder portion whose upper end is arranged on the ground, water can be stored, and an outlet is formed. A hollow body that has a lower cylinder and is buried in the ground,
An opening / closing mechanism that can open and close the outlet,
A hollow extended storage unit that can be attached to the main body and communicates with the inside of the main body when attached to the main body.
Equipped with a water storage device. The water storage device according to claim 1, wherein the extended storage unit is connected to the water storage port. The water storage device according to claim 2, wherein the average of the inner diameter cross-sectional area of the extended storage portion is equal to or more than the average of the inner diameter cross-sectional area of the main body. A communication port is formed in the main body, and the communication port is formed.
The water storage device according to claim 1, wherein the extended storage unit is connected to the communication port. The extended storage section is
A connection portion in which a connection port connected to the communication port is formed, and a connection portion.
A cylindrical main body cylinder with one end connected to the connection,
A closing portion that closes the other end of the main body cylinder portion,
The water storage device according to claim 4. The water storage device according to claim 5, wherein the main body cylinder portion is inclined downward toward the communication port. The water storage device according to any one of claims 4 to 6, wherein the communication port is arranged at a position higher than the upper end of the outlet. The water storage device according to any one of claims 4 to 7, wherein the diameter of the communication port is larger than the diameter of the outlet. The water storage device according to any one of claims 1 to 8, which is connected to a water supply means for supplying water.
An upstream end connected to the outlet of the water storage device, a downstream end connected to the sewage main, and one or more temporary toilets connected to the upstream end and the downstream end. A pipeline with a possible main section and
With a plumbing system. The piping system according to claim 9, wherein the average inner diameter of the main body of the water storage device is smaller than five times the average inner diameter of the pipeline.

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