Storage and drainage systems

Abstract

To provide a storage device and a drainage system equipped with the storage device, wherein the storage device can be easily installed by utilizing an existing pipe line, and can also forcefully discharge water into the pipe line by simple operation.SOLUTION: A storage device 10 that is connected to an existing pipe line 100 that comprises a main pipe 110 that is buried underground and through which wastewater flows, and a vertical pipe 120 that is installed upright to communicate with the main pipe 110 comprises: a storage part 20 that can store water; a discharge part 40 that discharges the water stored in the storage part 20; and a plug part 50 that can open and close the discharge part 40, wherein the discharge part 40 may be connected to an opening part 122 provided at an upper end part of the vertical pipe 120.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a storage device and a drainage system.

Background Art

[0002] Conventionally, there has been provided something like the disaster prevention toilet facility disclosed in Patent Document 1. The disaster prevention toilet facility of Patent Document 1 is provided with a drain pipe, a vertical pipe connected to the drain pipe, a foundation block provided at the upper end of the vertical pipe, and a toilet tool permanently provided on the upper surface of the foundation block. Further, the foundation block is formed with a vertical pipe insertion recess into which the upper end of the vertical pipe is inserted at the bottom surface, and a dirt input hole that communicates the upper surface and the vertical pipe insertion recess. The disaster prevention toilet facility of Patent Document 1 is configured to connect the upstream end of a drain pipe buried underground to a water supply tray and connect the other end to an existing manhole connected to a main sewer pipe.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the disaster-prevention toilet system described in Patent Document 1 is configured such that, in addition to drainage pipes arranged to form a predetermined slope relative to the horizontal, a water supply manhole for supplying water for flushing to the drainage pipes is also buried underground. Therefore, the disaster-prevention toilet system described in Patent Document 1 has the problem that the construction for installing the water supply manhole is time-consuming. Furthermore, because the disaster-prevention toilet system described in Patent Document 1 has the water supply manhole buried underground together with the drainage pipes, there is a problem that it is difficult to supply water forcefully from the water supply manhole to the drainage pipes. In the case of a configuration like that described in Patent Document 1, in order to make the water supplied from the water supply manhole flow forcefully in the drainage pipes, measures such as increasing the slope of the drainage pipes underground must be taken. Therefore, when attempting to install the disaster-prevention toilet system described in Patent Document 1 using existing pipelines, there is a problem that it is difficult to discharge water forcefully into pipelines such as drainage pipes.

[0005] Therefore, the present invention aims to provide a storage device that can be easily installed using existing pipelines and that can discharge water forcefully into the pipeline, as well as a drainage system equipped with the storage device. [Means for solving the problem]

[0006] (1) The present invention, provided to solve the above-mentioned problems, is a storage device that is buried underground and connected to an existing pipeline that includes a main pipe through which wastewater flows and a riser pipe erected to communicate with the main pipe, and is characterized by having a storage section capable of storing water, a discharge section for discharging the water stored in the storage section, and a plug section that can open and close the discharge section, wherein the discharge section can be connected to an opening provided at the upper end of the riser pipe.

[0007] The storage device of the present invention can be installed by connecting a discharge section to an opening provided at the upper end of a riser pipe in an existing pipeline. Therefore, the storage device of the present invention can be easily installed by utilizing existing pipelines. Furthermore, the storage device of the present invention stores water in the storage section above the pipeline and, when necessary, can discharge the stored water towards the main pipe via the riser pipe by opening the discharge section. Therefore, the storage device of the present invention can forcefully discharge water into the pipeline by opening and closing the discharge section with a plug.

[0008] (2) The storage device of the present invention is preferably characterized in that it has an overhang portion formed to protrude outward from the storage portion, and when the storage portion is installed, the overhang portion is in contact with the installation surface on which the storage portion is installed.

[0009] By having such a configuration, the storage device of the present invention can be stably installed on the installation surface.

[0010] (3) The storage device of the present invention is characterized in that the plug is located inside the storage section and can open and close the discharge section by moving in a predetermined direction, and has an operating section connected to the plug and brought out to the outside of the storage section, and the plug can be moved in a predetermined direction and the discharge section can be opened and closed by operating the operating section from the outside of the storage section.

[0011] With this configuration, the storage device of the present invention allows for easy operation of a plug located inside the storage section by operating an operating section on the outside of the storage section, thereby opening and closing the discharge section.

[0012] (4) The storage device of the present invention is preferably characterized in that a discharge section is provided at the bottom of the storage section.

[0013] By having this configuration, the storage device of the present invention can utilize hydrostatic pressure to forcefully discharge water towards the pipeline.

[0014] (5) The storage device of the present invention is preferably characterized in that the bottom of the storage section is formed to have a downward slope toward the discharge section.

[0015] With this configuration, the storage device of the present invention allows water stored in the storage section to flow more easily toward the discharge section when the discharge section is opened. As a result, the storage device of the present invention can discharge water toward the pipeline more smoothly and forcefully.

[0016] (6) The storage device of the present invention is characterized in that the discharge section has a cylindrical discharge pipe with a discharge port that is open inside the storage section, and the plug section has a first plug component that can enter the inside of the discharge pipe from the discharge port, and a second plug component that is located on the side of the direction of entry from the discharge port to the inside of the discharge pipe relative to the first plug component and prevents entry from the discharge pipe from the discharge port, and the discharge section can be opened and closed by moving the first plug component in and out of the discharge pipe.

[0017] In the storage device of the present invention, when the discharge section is closed, the first plug component, which forms the plug, enters the discharge pipe, while the second plug component, which is located on the near side of the first plug component in the direction of entry, does not enter the discharge pipe. Therefore, the storage device of the present invention can prevent the plug member from entering the discharge pipe excessively when the discharge section is closed. As a result, the storage device of the present invention can prevent the plug from penetrating the discharge section and falling out, or from becoming difficult to detach the plug from the discharge section when opening the discharge section again.

[0018] (7) The drainage system of the present invention comprises a storage device having a storage section capable of storing water, a discharge section for discharging the water stored in the storage section, and a plug section that can open and close the discharge section; a pipeline having a main pipe through which wastewater flows underground, and a riser pipe erected to communicate with the main pipe and having an opening that faces upward, wherein the storage device is installed above ground and the discharge section is connected to the opening of the riser pipe, thereby enabling the water stored in the storage section to be discharged to the main pipe via the riser pipe.

[0019] The drainage system of the present invention can be installed by connecting the discharge section of a storage device to an opening provided at the upper end of a riser pipe in an existing pipeline. Furthermore, when the drainage system of the present invention is installed in an existing pipeline, water can be stored in the storage section with the discharge section closed by a plug, and by opening the discharge section as needed, the water stored above the pipeline can be discharged towards the main pipe via the riser pipe.Therefore, the drainage system of the present invention can be easily installed using existing pipelines, and water can be discharged forcefully into the pipeline by a simple operation of opening and closing the discharge section with a plug.

[0020] (8) The drainage system of the present invention has a cover that is fitted to an opening, wherein the cover comprises a cover frame provided at the opening of the riser pipe, a main cover body that fits into the cover frame and has a fitting hole that penetrates vertically, and a main cover having a main cover discharge pipe that extends downward from the main cover body, and a sub-cover that fits into the fitting hole, wherein the discharge part is connected to the opening by removing the sub-cover and connecting the discharge part to the fitting hole.

[0021] The drainage system of the present invention utilizes a lid of the so-called parent-child lid type, which has a parent lid and a child lid, and can be installed by connecting the discharge section to a fitting hole formed by removing the child lid. As a result, the drainage system of the present invention can be installed stably. Furthermore, since the drainage system of the present invention is installed by connecting the discharge section of the storage device to the parent-child lid type lid, odor leakage can be suppressed.

[0022] (9) The drainage system of the present invention is preferably characterized in that it has a water guide device arranged in the riser pipe and introducing water discharged from the discharge section of the storage device into the main pipe, the water guide device having an inlet that receives water discharged from the discharge section, a pipeline section through which the water that has flowed in from the inlet section flows, and an outlet section that discharges water from the pipeline section, and the pipe axis of the outlet section is inclined toward the main pipe than the pipe axis of the inlet section.

[0023] By providing a water guiding device as described above inside the riser pipe, the drainage system of the present invention can receive the water discharged from the discharge part of the storage device at the inflow part and discharge it toward the main pipe through the pipe line part and the outflow part. Further, in the drainage system of the present invention, since the pipe axis of the outflow part is arranged to incline toward the main pipe side more than the pipe axis of the inflow part, the flow of water that has entered the water guiding device from the storage device can be smoothly introduced into the main pipe in a state where it is directed in the direction along the main pipe. Therefore, the drainage system of the present invention can vigorously flow the water discharged from the storage device through the water guiding device into the main pipe, and can further improve the cleaning ability of the main pipe.

[0024] (10) In the drainage system of the present invention, temporary drainage equipment can be connected to the opening of the riser pipe, and the storage device is connected to the opening of the riser pipe adjacent to the upstream side of the riser pipe to which the temporary drainage equipment is connected. It is good that it is characterized by this.

[0025] By having such a configuration, the drainage system of the present invention can vigorously reach the water to the position corresponding to the temporary drainage equipment in the main pipe by discharging water from the storage device located upstream of the temporary drainage equipment. Therefore, according to the drainage system of the present invention, the sewage and discharges discharged from the temporary drainage equipment to the main pipe can be washed by the water that vigorously flows from the storage device located upstream of the temporary drainage equipment and toward the downstream side of the main pipe.

[0026] (11) In the drainage system of the present invention, a plurality of riser pipes are provided, and the temporary drainage equipment is connected to the openings of some of the plurality of riser pipes. Among the plurality of riser pipes, the storage device provided to be paired with the temporary drainage equipment is connected to the opening of the riser pipe connected to a position adjacent to the upstream side of the main pipe with respect to the one to which the temporary drainage equipment is connected. It is good that it is characterized by this.

[0027] As described above, the storage device paired with the temporary drainage facility in the drainage system of the present invention is provided in a riser pipe adjacent to the upstream side of the main pipe. By doing so, it is possible to more surely and powerfully make water reach the position corresponding to the temporary drainage facility in the main pipe. Therefore, according to the drainage system of the present invention, the sewage and discharges discharged from the temporary drainage facility into the main pipe can be more surely and powerfully washed away downstream of the main pipe.

Effects of the Invention

[0028] According to the present invention, it is possible to easily install by utilizing an existing pipeline, and to provide a storage device capable of discharging water powerfully to the pipeline and a drainage system provided with the storage device.

Brief Description of the Drawings

[0029] [Figure 1] It is a schematic diagram showing a drainage system according to an embodiment of the present invention. [Figure 2] It is a cross-sectional view showing a state in which a storage device according to an embodiment of the present invention is installed. [Figure 3] It is an enlarged view of the main part of FIG. 2. [Figure 4] It is a perspective view showing the installation method of the storage device shown in FIG. 2 step by step. [Figure 5] It is a schematic diagram showing a drainage system according to a modification. [Figure 6] It is a cross-sectional view showing a modification of the installation form of the storage device according to an embodiment of the present invention. [Figure 7] It is an enlarged cross-sectional view of the main part of a drainage system according to a first modification provided with a water guiding device. [Figure 8] It is an enlarged cross-sectional view of the main part of a drainage system according to a second modification provided with a water guiding device.

Modes for Carrying Out the Invention

[0030] The following description will detail a storage device 10 and a drainage system S according to one embodiment of the present invention, with reference to the drawings. In the following description, the pipeline 100 constituting the drainage system S will be briefly described first, and then the configuration of the storage device 10 connected to the pipeline 100 will be described in detail. In the following description, unless otherwise specified, the positional relationships such as up, down, left, and right will be described based on the state in which the storage device 10 and the drainage system S are installed for use in their normal operating configuration.

[0031] ≪Overview of Drainage System S≫

[0032] The drainage system S shown in Figure 1 discharges wastewater from the drainage facility 3 downstream to the main sewer pipe 4, etc. Specifically, when the water supply to the drainage facility 3 is functioning (water supply function) and the drainage to the main sewer pipe 4 is functioning (drainage function), the drainage system S can discharge wastewater from the drainage facility 3 downstream to the main sewer pipe 4, etc. Furthermore, when the water supply to the drainage facility 3 is interrupted due to a disaster such as an earthquake (water outage) and the water supply to the drainage facility 3 is not functioning, or when the water supply function is insufficient due to the installation of temporary toilets, etc., in outdoor areas where the water supply facilities are inadequate (water supply failure), the drainage system S can supply stored water to the pipeline 100, described later, and discharge the wastewater downstream. In addition, when the drainage system S is unable to drain wastewater into the main sewer pipe 4, etc., due to damage to a part of the main sewer pipe 4 or pipeline 100, the drainage system S can discharge the wastewater into the wastewater storage tank 190. In other words, in the event of a water supply failure and a drainage failure (when water supply and drainage are impossible), the drainage system S can supply stored water to discharge wastewater into the pipeline 100 while simultaneously discharging wastewater from the drainage facility 3 towards the wastewater storage tank 190.

[0033] Here, the main sewer pipe 4 is a pipe that carries wastewater to a wastewater treatment plant (not shown). Wastewater flowing out of the drainage facility 3 of building 1 is normally discharged into the main sewer pipe 4. The drainage facility described above is a facility that discharges wastewater. Examples of drainage facilities include toilets, baths, or kitchen sinks. In addition to the existing drainage facilities (existing drainage facilities 3a) such as toilets and baths already installed in building 1, the drainage facilities installed in drainage system S also include temporary drainage facilities (temporary drainage facilities 3b) such as temporary toilets. Building 1 includes residences, commercial facilities, factories, school buildings, warehouses, etc.

[0034] Regarding pipeline 100:

[0035] As shown in Figure 1, the pipeline 100 has a main pipe 110 and a riser pipe 120, and constitutes a passage for water to flow underground. In this embodiment, the pipeline 100 is connected by multiple pipes and fittings to form a drainage channel C which is a flow path for wastewater.

[0036] In pipeline 100, the main pipe 110 constitutes a flow path extending from the upstream side to the downstream side (towards the main sewer pipe 4). The main pipe 110 may consist of a single pipe, but in this embodiment, it is provided with a first pipe 110a and a second pipe 110b. In addition, multiple risers 120 are provided in pipeline 100. A storage device 10, which will be described in detail later, is connected to pipeline 100, and a switchable drainage manhole 150 and a backflow prevention manhole 170 are also provided.

[0037] The first pipeline 110a is provided to lead from the storage device 10 to the main sewer pipe 4. The second pipeline 110b is provided to lead from the switchable drainage manhole 150 to the wastewater storage tank 190. The main pipe 110, through the first pipeline 110a and the second pipeline 110b, can form two systems as wastewater drainage channels C. Specifically, the main pipe 110 can form a first channel c1 that drains wastewater to the main sewer pipe 4 via the first pipeline 110a, and a second channel c2 that discharges wastewater to the wastewater storage tank 190 via the second pipeline 110b.

[0038] In other words, the main pipe 110 can form a first drainage channel c1 as a normal drainage channel C for discharging wastewater into the main sewer pipe 4 via the first channel c1. The main pipe 110 can also form a second channel c2 for discharging wastewater into the wastewater storage tank 190 as a drainage channel C for use when discharge is impossible, such as when wastewater is damaged in the main sewer pipe 4 or the first pipe 110a downstream of the branching point with the second pipe 110b, and there is a risk of wastewater flowing upstream.

[0039] The riser pipe 120, like the main pipe 110, constitutes the pipeline 100. The riser pipe 120 is erected so as to communicate with the piping that constitutes the main pipe 110. For example, the riser pipe 120 is connected to the main pipe 110 via a drainage manhole 147 provided in the pipeline 100 and is erected toward the ground. In addition to being provided in the drainage manhole, the riser pipe 120 may also be connected to the pipeline 100 via a joint. Furthermore, various types of drainage manholes can be selected, such as sewage manholes and rainwater manholes, to which the riser pipe 120 is provided.

[0040] The riser pipe 120 is a pipe buried underground. The lower end of the riser pipe 120 is connected to the first pipeline 110a and is erected so as to extend towards the ground. The riser pipe 120 has an opening 122 at its upper end. The opening 122 functions as an inspection port for inspecting the inside of the pipeline 100 from the ground surface. The opening 122 is closed by a cover 130 during normal times other than during a disaster. In situations where temporary drainage equipment 3b is to be installed, such as during a disaster, the cover 130 can be removed as shown in Figure 1, allowing the temporary drainage equipment 3b to be attached to the upper end of the riser pipe 120.

[0041] In Figure 1, an example is shown in which the temporary drainage facility 3b is installed on a riser pipe 120 located downstream of the existing drainage facility 3a. However, the temporary drainage facility 3b may also be installed on a riser pipe 120 located upstream of the existing drainage facility 3a. For example, if a riser pipe 120 is located upstream of the existing drainage facility 3a and downstream of the storage device 10, the temporary drainage facility 3b may be installed on that riser pipe 120.

[0042] The cover 130 closes the upper end of the riser pipe 120 by being fitted into the opening 122 of the riser pipe 120. The shape and material of the cover 130 can be appropriately selected as long as it can close the opening 122. In this embodiment, the cover 130 is a so-called parent-child cover. Specifically, as shown in Figures 2 and 3, the cover 130 comprises a cover frame 132, a parent cover 134, and a child cover 136.

[0043] The main cover 134 has a main cover body 138 and a cylindrical portion 142. The main cover body 138 is the part that fits onto the cover frame 132. The main cover body 138 has a fitting hole 140 that penetrates in the vertical direction. The main cover body 138 is fitted with an annular main cover sealing member 138a that contacts the cover frame 132 when the main cover 134 is fitted onto the cover frame 132, and this configuration improves the sealing performance when the main cover 134 is fitted onto the cover frame 132.

[0044] The cylindrical portion 142 is a cylindrical part that extends downward from the main lid body 138. The cylindrical portion 142 is provided on the main lid body 138 so as to surround the fitting hole 140 when viewed from the bottom. In this embodiment, the cylindrical portion 142 extends downward from the edge of the fitting hole 140 in the main lid body 138. One or more slits may be formed in the cylindrical portion 142. In this embodiment, the main lid body 138 and the cylindrical portion 142 are integrally molded, but they may be separate parts.

[0045] The sub-cover 136 is a cover member that fits into a fitting hole 140 formed in the main cover body 138 of the main cover 134. The sub-cover 136 has a shape corresponding to the fitting hole 140. In this embodiment, since the fitting hole 140 is assumed to be circular in shape, the sub-cover 136 is disc-shaped. The sub-cover 136 is fitted with an annular sub-cover sealing member (not shown) that contacts the main cover body 138 when the sub-cover 136 is fitted onto the main cover 134, thereby improving the sealing performance when the sub-cover 136 is fitted onto the main cover 134.

[0046] Regarding the storage device 10:

[0047] As shown in Figure 1, the storage device 10 is connected to the pipeline 100 that constitutes the drainage channel through which wastewater flows. While the aforementioned pipeline 100 is buried underground, the storage device 10 is installed above ground. As shown in Figures 2 and 3, the storage device 10 has a storage section 20, an extension section 30, a discharge section 40, a plug section 50, and an operating section 60.

[0048] The storage section 20 has an internal storage space capable of storing water. The storage section 20 can be constructed by selecting appropriate sizes, shapes, materials, etc. The storage section 20 may be made by molding a resin material such as polyvinyl chloride resin, polypropylene resin, or fiber-reinforced plastic. Furthermore, when the storage section 20 is constructed from polyvinyl chloride resin, rigid polyvinyl chloride resin can be suitably used.

[0049] The storage section 20 is a bottomed cylindrical shape with an open upper end and a bottom 22 at its lower end. The discharge port 42 of the discharge section 40, which will be described in detail later, is located at the bottom 22 of the storage section 20. The discharge port 42 of the storage section 20 may be located at any position on the bottom 22, but in this embodiment, it is located approximately in the center of the bottom 22 (approximately at the axial center of the storage section 20). The bottom 22 is formed to slope downward towards the discharge port 42. Therefore, the bottom 22 of the storage section 20 is formed in a mortar shape (tapered shape).

[0050] The overhang portion 30 is a part that extends outward from the outer circumferential surface of the storage portion 20. When the storage portion 20 is installed, the overhang portion 30 extends so as to contact the installation surface (the ground in this embodiment) on which the storage portion 20 is installed. As a result, the storage device 10 is able to stably install the storage portion 20 on the installation surface by the overhang portion 30. The overhang portion 30 may be, for example, leg-shaped structures provided at predetermined intervals in the circumferential direction of the storage portion 20, but in this embodiment, it is a flange-shaped structure provided around almost the entire circumference of the storage portion 20. As a result, the overhang portion 30 is able to stably support the storage portion 20 around its entire circumference.

[0051] The discharge section 40 is for discharging the water stored in the storage section 20. The discharge section 40 is connected to an opening 122 provided at the upper end of the riser pipe 120. The discharge section 40 is located at the bottom 22 of the storage section 20. The discharge section 40 has a discharge pipe 44 with a discharge port 42 that opens inside the storage section 20. As described above, the discharge port 42 is formed to open at the bottom 22 of the storage section 20.

[0052] The discharge pipe 44 is a cylindrical portion formed to protrude further downward from the discharge port 42 of the storage section 20. The discharge pipe 44 (discharge section 40) may be formed as a separate component from the storage section 20 and attached to the storage section 20, but in this embodiment it is formed integrally with the storage section 20. The discharge pipe 44 is formed to protrude further downward from the bottom 22 of the storage section 20 and the lower end of the overhang 30. Therefore, when the storage section 20 is installed on the installation surface (ground), the discharge pipe 44 is formed to reach below the installation surface.

[0053] The discharge section 40 is formed by a cylindrical body of a size that can be inserted into the opening 122 of the riser pipe 120 described above. In this embodiment, the size (outer diameter) of the discharge section 40 is set to match the size of the fitting hole 140 that is opened by removing the sub-lid 136 of the lid 130 provided at the opening 122 of the riser pipe 120. Therefore, the storage device 10 can be connected to the opening 122 of the riser pipe 120 by removing the sub-lid 136 of the lid 130 provided at the opening 122 of the riser pipe 120 and inserting the cylindrical body forming the discharge section 40 into the fitting hole 140 to establish communication.

[0054] The plug portion 50 is for opening and closing the discharge portion 40. The plug portion 50 is located inside the storage portion 20. The plug portion 50 can open and close the discharge portion 40 by moving in a predetermined direction (axial direction of the storage portion 20, up and down direction). The plug portion 50 has a first plug component 52 and a second plug component 54.

[0055] The first plug component 52 is the part that can enter the inside of the discharge cylinder 44 from the discharge port 42. The first plug component 52 can open and close the discharge section 40 by entering and leaving the discharge cylinder 44. The second plug component 54 is located on the side of the first plug component 52 that is in the direction of entry from the discharge port 42 into the inside of the discharge cylinder 44. The second plug component 54 is the part that cannot enter the discharge cylinder 44 from the discharge port 42. The second plug component 54 is intended to prevent the plug 50 from entering the discharge cylinder 44 excessively. The second plug component 54 can be formed, for example, by providing a bulge that is larger than the first plug component 52.

[0056] In this embodiment, the plug portion 50 is provided with a connecting member 68 for connecting the operating portion 60, which will be described in detail later, to the bottomed cylindrical plug component 56, thereby providing a second plug component 54 in addition to the first plug component 52.

[0057] Specifically, the plug portion 50 is designed to enter the discharge pipe 44 with the closed bottom portion of the plug component 56 leading. The plug component 56 is formed so that its outer diameter substantially matches the inner diameter of the discharge pipe 44. The first plug component 52 is composed of the leading portion (bottom portion) of the plug component 56 in the direction of entry into the discharge pipe 44. A plug sealing member 58 is provided around the entire circumference of the portion of the plug portion 50 corresponding to the first plug component 52. As a result, the plug portion 50 has high sealing performance when the first plug component 52 of the plug portion 50 enters the discharge pipe 44, and can reliably prevent water from being discharged through the discharge portion 40.

[0058] The second plug component 54 is provided on the side of the plug 50 that is in the direction of entry (upward in the illustrated example) relative to the first plug component 52. The second plug component 54 has a portion that bulges outward from the plug component 56 by providing a connecting member 68 for connecting the operating part 60 to the plug component 56. Specifically, the second plug component 54 is provided with a bolt 68a, which is provided as the connecting member 68, so as to penetrate the plug component 56 radially. Therefore, on one radial side of the plug component 56, the head of the bolt 68a is provided so as to bulge outward from the plug component 56. Also, on the other radial side of the plug component 56, a nut 68b is attached to the shaft of the bolt 68a. As a result, the nut 68b is provided so as to bulge outward on the other radial side of the plug component 56. The second plug component 54 has a bulge formed by the head of the bolt 68a and the nut 68b, so it is prevented from entering the discharge pipe 44 from the discharge port 42. Therefore, the part of the plug 50 corresponding to the first plug component 52 can enter the discharge pipe 44 through the discharge port 42, but the part corresponding to the second plug component 54 gets stuck and does not enter the discharge pipe 44 excessively.

[0059] The operating unit 60 is provided to enable a switching operation to change the open / closed state of the discharge unit 40 by moving the plug 50 by operation from outside the storage unit 20. In this embodiment, since the discharge unit 40 can be opened and closed by the movement of the plug 50 in the vertical direction, the operating unit 60 is capable of displacing the plug 50 in the vertical direction. The operating unit 60 is connected to the plug 50 and is brought out to the outside of the storage unit 20. The operating unit 60 can move the plug 50 in a predetermined direction by operation from outside the storage unit 20, thereby opening and closing the discharge unit 40. Specifically, the operating unit 60 has an operating rod 62, a gripping part 64, and a connecting part 66.

[0060] The operating rod 62 is a component composed of rod-shaped or cylindrical members. The operating rod 62 is configured to have a length that protrudes above the upper end of the storage section 20 when the plug 50 is positioned inside the storage section 20.

[0061] The gripping portion 64 is provided on the upper end side of the operating rod 62. The gripping portion 64 is provided to make it easy for the user to grip when operating the plug portion 50 with the operating portion 60. The shape and size of the gripping portion 64 can be appropriately set to make it easy for the user to grip. In this embodiment, the gripping portion 64 is composed of a rod-shaped or cylindrical member that extends in a direction intersecting the axial direction of the operating rod 62 (in the illustrated example, in a direction approximately perpendicular).

[0062] The connecting portion 66 is the part that connects to the plug portion 50. The connecting portion 66 is provided on the lower end side of the operating rod 62. The connecting portion 66 is composed of a cylindrical member that extends in a direction intersecting the axial direction of the operating rod 62 (in the illustrated example, a direction approximately perpendicular). The connecting portion 66 has a length that can be accommodated inside the plug component 56 that makes up the plug portion 50. The connecting portion 66 is designed so that a bolt 68a, which makes up a connecting member 68 that connects the operating portion 60 and the plug portion 50, can be inserted through it. The operating portion 60 is connected to the plug portion 50 via the connecting portion 66 which is located inside the plug component 56 that makes up the plug portion 50. Specifically, the bolt 68a is installed so as to pass through the inside of the connecting portion 66 located inside the plug component 56 and cross the plug component 56 of the plug portion 50. Furthermore, a nut 68b is attached to the shaft portion of the bolt 68a outside the plug component 56. In this way, the operating portion 60 is connected to the plug portion 50.

[0063] ≪About Drainage System S≫

[0064] The drainage system S is constructed by installing the storage device 10 described above in relation to the existing pipeline 100. Specifically, the drainage system S is configured such that the storage device 10 is installed on the ground and the discharge section 40 is connected to the opening 122 of the riser pipe 120, thereby allowing the water stored in the storage section 20 to be discharged to the main pipe 110 via the riser pipe 120.

[0065] When constructing the drainage system S by installing the storage device 10 in relation to the pipeline 100, first, as shown in Figure 4(a), the sub-lid 136 is removed from the cover 130 that is closing the opening 122 at the upper end of the riser pipe 120. This leaves the fitting hole 140 open at the upper end of the riser pipe 120, as shown in Figure 4(b). Then, by inserting the discharge pipe 44 of the discharge section 40 into the fitting hole 140, the storage section 20 is positioned on the installation surface (ground), as shown in Figure 4(c). By installing the storage section 20 so that the overhanging section 30 is in contact with the installation surface, the storage section 20 can be installed stably.

[0066] As described above, with the storage section 20 installed, the drainage system S is configured such that, as shown in Figure 4(c), the plug 50 is inserted into the discharge pipe 44 from the discharge port 42 of the discharge section 40, thereby closing the discharge port 42 and allowing water to be stored in the storage section 20. Furthermore, when discharging water from the storage device 10 to the pipeline 100 for cleaning the pipeline 100, as shown in Figure 4(d), the plug 50 is moved out of the discharge pipe 44 by moving the operating unit 60 upward. This causes the discharge port 42 of the storage device 10 to open, and the water stored in the storage section 20 is discharged to the main pipe 110 via the riser pipe 120. In addition, since the bottom 22 of the storage section 20 is sloped downward towards the discharge pipe 44, almost the entire amount of water stored in the storage section 20 is discharged smoothly.

[0067] <<Regarding the effects of the storage device 10 and the drainage system S>>

[0068] The storage device 10 and the drainage system S equipped therewith have the following characteristic configurations (1) to (8), and can therefore achieve unique effects that cannot be achieved with conventional technology, as described below.

[0069] (1) The storage device 10 described above is a storage device 10 that is buried underground and connected to an existing pipeline 100 which has a main pipe 110 through which wastewater flows and a riser pipe 120 erected to communicate with the main pipe 110, and has a storage section 20 capable of storing water, a discharge section 40 for discharging the water stored in the storage section 20, and a plug section 50 that can open and close the discharge section 40, and the discharge section 40 is connectable to an opening 122 provided at the upper end of the riser pipe 120.

[0070] Since the storage device 10 has the configuration described in (1) above, it can be installed by connecting the discharge section 40 to the opening 122 provided at the upper end of the riser pipe 120 of the existing pipeline 100. Therefore, the storage device 10 can be easily installed by utilizing the existing pipeline 100. Furthermore, when the storage device 10 is installed in relation to the existing pipeline 100, with the discharge section 40 closed by the plug 50, water can be stored in the storage section 20 located above the pipeline 100, and the stored water can be discharged towards the main pipe 110 via the riser pipe 120 by opening the discharge section 40 as needed. Therefore, the storage device 10 can forcefully discharge water into the pipeline 100 by a simple operation of opening and closing the discharge section 40 with the plug 50.

[0071] (2) The storage device 10 described above has an overhang 30 that is formed to protrude outward from the storage section 20, and when the storage section 20 is installed, the overhang 30 is in contact with the installation surface on which the storage section 20 is installed.

[0072] Since the storage device 10 has the configuration described in (2) above, the storage section 20 can be stably installed on the installation surface.

[0073] (3) The storage device 10 described above has a plug 50 located inside the storage unit 20, which can open and close the discharge unit 40 by moving in a predetermined direction. It has an operating unit 60 connected to the plug 50 and brought out to the outside of the storage unit 20, and the plug 50 can be moved in a predetermined direction and the discharge unit 40 can be opened and closed by operating the operating unit 60 from the outside of the storage unit 20.

[0074] Since the storage device 10 has the configuration described in (3) above, the plug 50 located inside the storage section 20 can be easily operated by operating the operating section 60 located outside the storage section 20, thereby opening and closing the discharge section 40.

[0075] (4) The storage device 10 described above is provided with a discharge section 40 at the bottom 22 of the storage section 20.

[0076] Since the storage device 10 is configured as described in (4) above, it is possible to use hydrostatic pressure to forcefully discharge water towards the pipeline 100.

[0077] (5) The storage device 10 described above is formed such that the bottom 22 of the storage section 20 slopes downward toward the discharge section 40.

[0078] Since the storage device 10 is configured as described in (5) above, when the discharge section 40 is opened, the water stored in the storage section 20 flows more easily towards the discharge section 40. As a result, the storage device 10 described above can discharge water towards the pipeline 100 more smoothly and forcefully.

[0079] (6) The storage device 10 described above has a discharge section 40 which has a cylindrical discharge pipe 44 with a discharge port 42 that is open inside the storage section 20, and a plug section 50 which has a first plug component 52 that can enter the inside of the discharge pipe 44 from the discharge port 42, and a second plug component 54 which is located on the side of the direction of entry from the discharge port 42 to the inside of the discharge pipe 44 relative to the first plug component 52 and prevents entry from the discharge port 42 to the discharge pipe 44, and the discharge section 40 can be opened and closed by moving the first plug component 52 in and out of the discharge pipe 44.

[0080] Since the storage device 10 is configured as described in (6) above, when the discharge section 40 is closed, the first plug component 52 that forms the plug 50 enters the discharge pipe 44, while the second plug component 54, which is located on the side of the first plug component 52 in the direction of entry, does not enter the discharge pipe 44. Therefore, the storage device 10 of the present invention can prevent the plug 50 from entering the discharge pipe 44 excessively when the discharge section 40 is closed. As a result, the storage device 10 of the present invention can prevent the plug 50 from penetrating the discharge section 40 and falling out, or from becoming difficult to detach the plug 50 from the discharge section 40 when the discharge section 40 is opened again.

[0081] (7) The drainage system S described above comprises a storage device 10 having a storage section 20 capable of storing water, a discharge section 40 for discharging the water stored in the storage section 20, and a plug section 50 that can open and close the discharge section 40; and a pipeline 100 having a main pipe 110 through which wastewater flows underground, and a riser pipe 120 erected to communicate with the main pipe 110 and having an opening 122 that opens upward. By installing the storage device 10 above ground and connecting the discharge section 40 to the opening 122 of the riser pipe 120, the water stored in the storage section 20 can be discharged to the main pipe 110 via the riser pipe 120.

[0082] As the drainage system S of this embodiment has the configuration described in (7) above, it can be installed by connecting the discharge section 40 of the storage device 10 to the opening 122 provided at the upper end of the riser pipe 120 of the existing pipeline 100. Furthermore, when the drainage system S is installed in relation to the existing pipeline 100, water is stored in the storage section 20 with the discharge section 40 closed by the plug section 50, and by opening the discharge section 40 as needed, the water stored above the pipeline 100 can be discharged towards the main pipe 110 via the riser pipe 120.Therefore, the drainage system S can be easily installed by utilizing the existing pipeline 100, and water can be forcefully discharged into the pipeline 100 by a simple operation of opening and closing the discharge section 40 with the plug section 50.

[0083] (8) The drainage system S described above has a cover 130 that is fitted over the opening 122, and the cover 130 comprises a cover frame 132 provided on the opening 122 of the riser pipe 120, a main cover body 138 that fits into the cover frame 132 and has a fitting hole 140 that penetrates vertically, and a main cover 134 having a cylindrical part 142 that extends downward from the main cover body 138, and a sub-cover 136 that fits into the fitting hole 140, and the discharge part 40 is connected to the opening 122 by removing the sub-cover 136 and connecting the discharge part 40 to the fitting hole 140.

[0084] Since the drainage system S has the configuration described in (8) above, it can be installed by utilizing a lid 130 of the so-called parent-child lid type, which has a parent lid 134 and a child lid 136, and connecting the discharge section 40 to the fitting hole 140 formed by removing the child lid 136. This allows the drainage system S to be installed stably. Furthermore, since the drainage system S is installed by connecting the discharge section 40 of the storage device 10 to the parent-child lid type lid 130, odor leakage can be suppressed.

[0085] ≪Variations≫

[0086] It should be noted that the storage device 10 and drainage system S described above are merely examples of one embodiment of the present invention, and their configurations can be modified as appropriate without departing from the spirit of the present invention. For example, the storage device 10 and drainage system S are not limited to having all of the configurations described in (1) to (8) above, but can also be made by omitting any of these configurations or substituting them with other configurations.

[0087] For example, the storage device of the present invention is not limited to the storage device 10 described above, but can be, for example, a storage device 210 as shown in Figure 5. The storage device 210 has a discharge section 240 on the side of the storage section 220, at the bottom 222 side. The storage device 210 has a plug section 250 that can open and close the discharge section 240.

[0088] The storage device 210, like the storage device 10, has the features described in (1) above. Specifically, the storage device 210 is buried underground and connected to an existing pipeline 100 which has a main pipe 110 through which wastewater flows, and a riser pipe 120 erected to communicate with the main pipe 110. It has a storage section 220 capable of storing water, a discharge section 240 for discharging the water stored in the storage section 220, and a plug section 250 that can open and close the discharge section 240, and the discharge section 240 is connectable to an opening 122 provided at the upper end of the riser pipe 120. With this configuration, as shown in Figure 5, by connecting the discharge section 240 and the opening 122 of the riser pipe 120 with piping 212, the water stored in the storage section 220 can be forcefully discharged above ground toward the pipeline 100 buried underground by simple operation of the plug section 250, just like the storage device 10.

[0089] Furthermore, the storage device 210 may have the same configuration as the storage device 10 described above. For example, as shown in Figure 5 with the same reference numerals as the storage device 10 described above, the storage device 210 may have a configuration similar to the storage device 10, such as having an overhang 30, a bottom 222 that slopes downward toward the discharge section 240, and a bulge like the second plug component 54 to prevent the plug 250 from entering the discharge section 240 excessively.

[0090] Furthermore, although the storage device 10 in the above embodiment is provided with an overhang 30 as described in (2) above, the present invention is not limited thereto. The storage device 10 may also be provided without an overhang 30. This simplifies the configuration of the storage device 10. In addition, the storage device 10 may be provided with other configurations to improve the stability of the storage section 20, either in place of or in addition to the overhang 30.

[0091] The storage device 10 of the above embodiment can also be configured in a way that, instead of having a plug 50 located inside the storage section 20 that can be operated by an operating section 60 brought out to the outside of the storage section 20, as described in (3) above, other configurations are also possible. For example, the storage device 10 can also be configured to have an opening / closing section, such as a valve that can control the discharge of water, located outside the storage section 20, and the discharge of water from the storage section 20 to the pipeline 100 can be controlled by operating the opening / closing section.

[0092] In the above embodiment, the storage device 10 has a discharge section 40 at the bottom 22 of the storage section 20, as described in (4) above. However, it is also possible to configure the storage device 210 shown in Figure 5 above, in which the discharge section 40 is located in a part other than the bottom 22. Even when the storage device 10 is configured to allow water to be discharged from a part other than the bottom 22, it is preferable to configure the storage section 20 to allow water to be discharged from a position close to the bottom 22 in order to use the hydrostatic pressure to forcefully discharge the water towards the pipeline 100.

[0093] In the above embodiment, the storage device 10 is formed such that the bottom 22 of the storage section 20 slopes downward toward the discharge section 40, as described in (5) above. However, the present invention is not limited to this, and the bottom 22 can be provided in a substantially horizontal position, etc.

[0094] The storage device 10 in the above embodiment employs a plug portion 50 equipped with a first plug component 52 and a second plug component 54, as described in (6) above. However, the present invention is not limited to this, and it is also possible to omit a portion that cannot enter the discharge pipe 44, such as the second plug component 54. That is, in the storage device 10, a large pressure acts on the plug portion 50 in the direction of entry into the discharge pipe 44. However, in the modified storage device 210 shown in Figure 5, for example, the pressure is not large enough to act on the plug portion 50, and it is assumed that the plug portion 250 is unlikely to enter the discharge section 240 excessively due to the pressure acting on the plug portion 250. Therefore, in such cases, the configuration may be made without the second plug component 54.

[0095] The drainage system S of the above embodiment, as described in (7) above, has a storage device 10 installed on the ground and a discharge section 40 connected to the opening 122 of the riser pipe 120, thereby enabling the water stored in the storage section 20 to be discharged to the main pipe 110 via the riser pipe 120. However, the present invention is not limited thereto. For example, the drainage system S may be equipped with a storage device 210 according to the modified example described above instead of the storage device 10.

[0096] The drainage system S in the above embodiment utilizes a so-called parent-child lid type lid 130, which has a parent lid 134 and a child lid 136, as described in (8) above, and allows the storage device 10 to be installed by removing the child lid 136, but the present invention is not limited to this. The drainage system S may also be installed by connecting a discharge pipe 44 to the part where the parent lid 134 has been removed. Furthermore, the lid 130 attached to the opening 122 is not limited to a parent-child lid type. If a lid other than a parent-child lid type is used as the lid 130, the drainage system S can be constructed by connecting a discharge pipe 44 to the opening formed by removing the lid 130.

[0097] Furthermore, as shown in Figure 6, the drainage system S can be configured such that the storage device 10 is attached to a cover body 130 located below ground level, for example, by providing a protective cover 180. In the configuration shown in Figure 6, the storage device 10 is installed above the open protective cover 180, and the sub-cover 136 of the cover body 130 is removed, and the fitting hole 140 and the discharge pipe 44 are connected by a separately provided connecting pipe 46. Alternatively, instead of providing a connecting pipe 46, the discharge pipe 44 may be made longer from the beginning so that it can reach the fitting hole 140 of the cover body 130 located below the protective cover 180, thereby directly connecting the discharge pipe 44 to the fitting hole 140 without using a connecting pipe 46.

[0098] Furthermore, the drainage system S of the above embodiment can be equipped with a water guide device 300, as shown in Figure 7. Specifically, the water guide device 300 shown in Figure 7 introduces water discharged from the discharge sections 40 and 240 of the storage devices 10 and 210 into the main pipe 110. The water guide device 300 is a cylindrical member that can be placed inside the riser pipe 120. The water guide device 300 includes an inlet section 310, a pipeline section 320, and an outlet section 330.

[0099] The inlet 310 is open at one end of the water guide device 300. The inlet 310 is the part that receives water discharged from the discharge sections 40 and 240 of the storage devices 10 and 210. The inlet 310 is located inside the riser pipe 120, downstream of the discharge sections 40 and 240. A seal section 312 is provided on the outer surface of the water guide device 300. The seal section 312 is made of, for example, an O-ring. The outer diameter of the inlet 310 is approximately the same as the inner diameter of the riser pipe 120. Therefore, the inlet 310 is in close contact with the riser pipe 120 via the seal section 312.

[0100] The pipeline section 320 is located downstream (towards the main pipe 110) of the water supply device 300 relative to the inlet section 310. In the pipeline section 320, the portion following the inlet section 310 is a reduced-diameter section 322. The reduced-diameter section 322 is formed to decrease in diameter towards the downstream side, for example by having a tapered shape as shown in the illustrated example. The pipeline section 320 may consist of a reduced-diameter section 322 along its entire length, but in the illustrated example, the portion following the reduced-diameter section 322 has a cylindrical section 324 with a constant opening diameter. The inner diameter of the cylindrical section 324 is smaller than the inner diameter of the inlet section 310 and the riser pipe 120. Therefore, the pipeline section 320 can amplify the force of the water flowing in from the inlet section 310.

[0101] The outlet section 330 is an opening that allows water to flow out of the pipeline section 320. The outlet section 330 is positioned so that its pipe axis is tilted towards the main pipe 110 side than the pipe axis of the inlet section 310. The outlet section 330 is positioned so that its pipe axis direction faces downstream of the main pipe 110. The inner diameter and opening diameter of the outlet section 330 can be the same as or larger than the inner diameter of the pipeline section 320, but it is preferable to make them smaller than the inner diameter of the pipeline section 320. Making the inner diameter and opening diameter of the outlet section 330 smaller than the inner diameter of the pipeline section 320 can further increase the force of the water discharged from the outlet section 330.

[0102] It should be noted that the drainage system S equipped with the water guide device 300 described above is merely one example of the present invention, and it is possible to replace the water guide device 300 with the water guide device 350 shown in Figure 8. As indicated in Figure 8 with the same reference numerals as in Figure 7, the water guide device 350 has the same configuration as the inlet 310 and outlet 330, but differs in that the pipe section 320 consists only of a reduced diameter section 322 and does not have a cylindrical section 324. With such a configuration, it can be suitably used when a conventionally known drainage manhole or a switchable drainage manhole 150 is used as the riser pipe 120 for connecting the storage devices 10 and 210.

[0103] The drainage system S constructed using the water intake devices 300 and 350 described above has the following characteristic configuration (9), and can therefore produce unique effects that cannot be achieved with conventional technology.

[0104] (9) The drainage system S illustrated in Figures 7 and 8 is characterized in that it is located inside the riser pipe 120 and has water guide devices 300 and 350 that introduce water discharged from the discharge sections 40 and 240 of the storage devices 10 and 210 into the main pipe 110, and has an inlet 310 that receives water discharged from the water guide devices 300 and 350 and the discharge sections 40 and 240, a pipeline section 320 through which the water flowing in from the inlet 310 flows, and an outlet 330 that discharges water from the pipeline section 320, and the pipe axis of the outlet 330 is positioned to be inclined toward the main pipe 110 than the pipe axis of the inlet 310.

[0105] The drainage system S illustrated in Figures 7 and 8, by installing the aforementioned water guide devices 300 and 350 inside the riser pipe 120, can receive water discharged from the discharge sections 40 and 240 of the storage devices 10 and 210 at the inlet and discharge it towards the main pipe 110 via the pipeline section 320 and the outlet section 330. Furthermore, in this drainage system S, the pipe axis of the outlet section 330 is tilted toward the main pipe 110 than the pipe axis of the inlet section 310, so that the flow of water entering the water guide devices 300 and 350 from the storage devices 10 and 210 can be smoothly introduced into the main pipe 110 in a direction along the main pipe 110. Therefore, this drainage system S can forcefully flow water discharged from the storage devices 10 and 210 into the main pipe 110 via the water guide devices 300 and 350, further improving the cleaning capacity of the main pipe 110.

[0106] As shown in Figures 1 and 5, the drainage system S is configured such that storage devices 10 and 210 are installed in the risers 120 located upstream of the main pipe 110 (on the opposite side of the main sewer pipe 4) from the risers 120 that are connected to the main pipe 110, rather than the risers 122 to which the temporary drainage equipment 3b is connected. Furthermore, when multiple temporary drainage equipment 3b are installed, the drainage system S is configured such that storage devices 10 and 210 corresponding to the temporary drainage equipment 3b are installed upstream (on the opposite side of the main sewer pipe 4) so ​​that water can be discharged from the storage devices 10 and 210 located upstream of the temporary drainage equipment 3b that have discharged wastewater etc. toward the main pipe 110. Furthermore, while the examples shown in Figures 1 and 5 illustrate an example where multiple temporary drainage facilities 3b are provided for a single storage device 10, 210, the present invention is not limited to this. It is also preferable to provide temporary drainage facilities 3b and storage devices 10, 210 in pairs, and to connect the storage devices 10, 210 paired with the temporary drainage facilities 3b to the openings 122 of the risers 120 that are located adjacent to the upstream side of the main pipe 110 to which the temporary drainage facilities 3b are connected. In other words, it is preferable to provide the same number of storage devices 10, 210 as the number of temporary drainage facilities 3b, and to connect the storage devices 10, 210 to the openings 122 of the risers 120 that are located adjacent to the upstream side of each temporary drainage facility 3b.

[0107] The drainage system S exemplified in the above embodiment, and the drainage system S exemplified as a modified example, have the following characteristic configurations as shown in (10) or (11), and can therefore achieve unique effects that cannot be achieved with the prior art.

[0108] (10) The drainage system S described above is characterized in that a temporary drainage facility 3b can be connected to the opening 122 of the riser pipe 120, and storage devices 10 and 210 are connected to the opening 122 of the riser pipe 120 adjacent to the riser pipe 120 on the upstream side of the riser pipe 120 to which the temporary drainage facility 3b is connected.

[0109] With this configuration, the drainage system S can forcefully deliver water to the main pipe 110 at a position corresponding to the temporary drainage facility by discharging water from the storage devices 10 and 210 located upstream of the temporary drainage facility. Therefore, with the drainage system S configured as described in (10) above, wastewater and waste discharged from the temporary drainage facility 3b into the main pipe 110 can be washed by water discharged from the storage devices 10 and 210 located upstream of the temporary drainage facility 3b and flowing forcefully downstream of the main pipe 110.

[0110] (11) The drainage system S described above is characterized in that a plurality of risers 120 are provided, a temporary drainage facility 3b is connected to the opening 122 of some of the risers 120, and storage devices 10 and 210, which are provided in conjunction with the temporary drainage facility 3b, are connected to the opening 122 of a riser 120 that is located adjacent to the upstream side of the main pipe 110 with respect to the riser 120 to which the temporary drainage facility 3b is connected.

[0111] The drainage system S, as described in (11) above, can more reliably and forcefully deliver water to the position in the main pipe 110 corresponding to the temporary drainage equipment by installing storage devices 10 and 210 in the riser pipe 120 located adjacent to the upstream side of the main pipe 110. Therefore, according to the drainage system S of the present invention, wastewater and discharged materials from the temporary drainage equipment into the main pipe 110 can be more reliably and forcefully pushed downstream of the main pipe 110 for cleaning.

[0112] The present invention is not limited to the embodiments and modifications described above, and other embodiments may be possible in the spirit and teachings thereof, without departing from the scope of the claims. The components of the embodiments described above may be arbitrarily selected and combined. Furthermore, any component of the embodiments may be arbitrarily combined with any component described in the means for solving the problem, or any component that embodies any component described in the means for solving the problem. We intend to obtain rights for these as well in amendments or divisional applications of this application. [Industrial applicability]

[0113] The present invention can be suitably used in drainage systems for discharging wastewater and in storage devices that constitute such systems. [Explanation of symbols]

[0114] 10 Storage device 20 Storage section 22 Bottom 30 Overhang 40 Discharge section 42 Outlet 44 Ejection tube 50 Plug part 52 First stopper component 54 Second stopper component 60 Control section 100 conduits 110 Master 120 Standpipe 122 Opening 130 Lid 132 Lid frame 134 Parent lid 136 Child cover 138 Main lid 140 fitting holes 142 Cylindrical part 210 Storage device 220 Storage section 222 Bottom 240 Discharge section 250 Plug part S Drainage System

Claims

1. A storage device connected to an existing pipeline that is buried underground and comprises a main pipe through which wastewater flows, and a riser pipe erected to communicate with the main pipe, A storage section capable of storing water, A discharge section for discharging the water stored in the storage section, The aforementioned discharge section includes a plug that can be opened and closed, It has, The discharge section is connectable to an opening provided at the upper end of the riser pipe. The discharge section has a cylindrical discharge pipe with a discharge port that opens inside the storage section, The aforementioned plug portion, A first plug component that can enter the inside of the discharge cylinder from the discharge port, The first plug component has a second plug component which prevents entry from the outlet into the discharge cylinder on the side of the direction of entry from the outlet into the inside of the discharge cylinder, A storage device characterized in that the discharge section can be opened and closed by inserting and removing the first plug component from the discharge pipe.

2. A storage device that can be used to clean an existing pipeline by connecting to the fitting hole when the child lid is removed, with respect to an existing lid body having a fitting hole formed vertically through the main lid body that fits into the lid frame, and a child lid that fits into the fitting hole, wherein the child lid is a parent-child lid type, A bottomed cylindrical storage section capable of storing water, An overhang formed so as to protrude outward from the storage section, A discharge section having a discharge pipe with a discharge port provided at the bottom of the storage section, The aforementioned outlet has a plug that can be opened and closed, It has, By inserting the discharge pipe into the fitting hole, the protruding portion contacts the upper surface of the main lid body and supports the storage device. A storage device characterized in that, by opening the plug, the water stored in the storage section can be discharged from the discharge pipe with force based on hydrostatic pressure.

3. It has an overhang that is formed to protrude outward from the storage portion, The storage device according to claim 1, characterized in that, when the storage unit is installed, the protruding portion is in contact with the installation surface on which the storage unit is installed.

4. The plug is positioned inside the storage section and can open and close the discharge section by moving in a predetermined direction. It has an operating section connected to the plug and extended to the outside of the storage section, The storage device according to claim 1, characterized in that the plug can be moved in the predetermined direction by operating the operating part from the outside of the storage part, thereby opening and closing the discharge part.

5. The storage device according to claim 1, characterized in that the discharge section is provided at the bottom of the storage section.

6. The storage device according to claim 1, characterized in that the bottom of the storage section is formed to have a downward slope toward the discharge section.

7. A storage device comprising a storage section capable of storing water, a discharge section for discharging the water stored in the storage section, and a plug section that can open and close the discharge section, The pipeline comprises a main pipe through which wastewater flows underground, and a riser pipe erected to communicate with the main pipe and having an opening that faces upward, By installing the storage device on the ground and connecting the discharge section to the opening of the riser pipe, the water stored in the storage section can be discharged to the main pipe via the riser pipe. It has a water intake device located inside the riser pipe that introduces water discharged from the discharge section of the storage device into the main pipe, The water intake device, An inlet that receives water discharged from the aforementioned discharge section, A pipeline section through which water flows in from the aforementioned inlet section, An outlet section for releasing water from the aforementioned pipeline section, It has, A drainage system characterized in that the pipe axis of the outlet section is positioned to be inclined toward the main pipe side than the pipe axis of the inlet section.

8. It has a cover that is fitted over the opening, The aforementioned lid, A cover frame provided at the opening of the riser pipe, A main lid body that fits into the lid frame and has fitting holes that penetrate vertically, and a main lid having a main lid discharge pipe that extends downward from the main lid body, A sub-lid that fits into the aforementioned fitting hole, It is equipped with, The drainage system according to claim 7, characterized in that the discharge portion is connected to the opening by removing the sub-lid and connecting the discharge portion to the fitting hole.

9. A temporary drainage system can be connected to the opening of the riser pipe. The drainage system according to claim 7, characterized in that the storage device is connected to the opening of the riser adjacent to the riser upstream of the riser to which the temporary drainage equipment is connected.

10. Multiple of the aforementioned risers are provided, The temporary drainage equipment is connected to the opening of some of the risers among the multiple risers. The drainage system according to claim 9, characterized in that, among the plurality of risers, the storage device provided to be paired with the temporary drainage equipment is connected to the opening of the riser that is connected to the main pipe at a position adjacent to the upstream side of the main pipe with respect to the riser to which the temporary drainage equipment is connected.

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