JP4997009B2 - Rainwater penetration - Google Patents

Description

  The present invention relates to rainwater penetration.

  Conventionally, there is a known rainwater infiltration facility that temporarily stores rainwater and discharges the stored rainwater by slowly infiltrating it into the ground for the purpose of suppressing rapid inflow of rainwater into the river during rainfall. (For example, see Patent Documents 1 to 3). The rainwater infiltration facilities disclosed in Patent Documents 1 to 3 are relatively large-sized facilities installed, for example, in the basement of a shopping center.

  Moreover, as a relatively small rainwater infiltration facility, rainwater infiltration with a box for temporarily storing rainwater is also known (see, for example, Patent Documents 4 to 6). This rainwater permeation can be embedded in a basement such as a garden or a garage in a residential land, for example.

  By the way, the rainwater flowing into the rainwater infiltration facility often contains mud. Therefore, if the rainwater infiltration facility is used for a long period of time, clogging due to mud occurs, making it difficult to smoothly infiltrate rainwater.

Therefore, in the rainwater infiltration facility disclosed in Patent Document 1, an inclined surface portion along the rainwater flow direction is provided in the drainage channel, and sand or sludge that flows in along with the rainwater is guided to the inspection manhole portion along the inclined surface portion. Yes. In this rainwater infiltration facility, workers can enter the inspection manhole and remove accumulated sand or sludge (see paragraph 0104 of Patent Document 1). Therefore, clogging due to mud can be prevented when the worker periodically performs the cleaning work.
JP 2007-16582 A JP 2007-32152 A Japanese Patent Laid-Open No. 2002-70091 JP 2000-45372 A JP 2003-34970 A JP 2007-32025 A

  Thus, in a large-scale rainwater infiltration facility, a work space is secured for workers to enter and perform cleaning work. However, unlike a large rainwater infiltration facility, a relatively small rainwater infiltration facility does not allow workers to enter and perform cleaning work. Therefore, when used for a long period of time, clogging due to mud occurs, and there is a problem in that the ability to penetrate rainwater decreases.

  This invention is made | formed in view of this point, The place made into the objective is to provide the rainwater penetration | through_mass which can discharge | emit the mud which flows in with rainwater comparatively easily.

  The rainwater infiltration maser according to the present invention has a top plate, a main body in which a space for temporarily storing rainwater is formed, and a mud reservoir that is lower than the surroundings in the main body, And an opening is formed at a position directly above the mud reservoir in the top plate.

  According to the rainwater permeating apparatus, since the mud reservoir portion that is lower than the surrounding area is further provided in the main body, mud contained in the rainwater that has flowed into the main body gathers in the mud reservoir portion. Further, according to the rainwater permeating gas, an opening is formed at a position directly above the mud reservoir in the main body. Therefore, the worker can discharge the mud accumulated in the mud reservoir part through the opening. Therefore, according to the above-mentioned rainwater permeating mast, even if the worker cannot enter the main body, the mud flowing in with the rainwater can be discharged relatively easily.

  The rainwater permeating tank may be provided with a container that is detachable from the mud reservoir through the opening.

  According to the rainwater permeation, the mud that has flowed into the main body is collected in the container. Therefore, the worker can discharge the mud in the main body more and more by simply taking out the container through the opening of the top plate of the main body. Therefore, according to the above-mentioned rainwater infiltrating muddy, mud flowing in with rainwater can be more easily discharged.

  The rainwater penetrating maser may include an inclined plate disposed in the main body or forming a part of the bottom plate of the main body and inclined obliquely downward toward the mud reservoir.

  According to the rainwater penetration masu, mud contained in rainwater is guided to the mud reservoir along the inclination of the inclined plate. Therefore, mud is efficiently collected in the mud reservoir.

  The main body has a bottom plate, and the rainwater infiltrating tank further includes an inclined plate disposed in the main body and inclined obliquely downward toward the mud reservoir, and the inclined plate and the bottom plate A space capable of storing rainwater may be formed therebetween.

  According to the rainwater permeation system, the space below the inclined plate is also effectively used as a space for storing rainwater. Therefore, the rainwater storage volume of the main body is not greatly reduced by adding the inclined plate.

  The rainwater penetrating mast has an upper opening and a lower opening, and is connected to the top plate so that the lower opening and the opening of the top plate are aligned vertically, and has a lid that covers the upper opening. A pipe member may be further provided, and a pipe for introducing rainwater may be connected to a side of the vertical pipe member.

  According to the above-mentioned rainwater infiltration, a pipe for introducing rainwater into the main body can be formed by connecting a pipe for introducing rainwater to the side of the vertical pipe member. Therefore, a pipe line for introducing rainwater can be easily formed.

  The rainwater permeating cell may comprise a filter member disposed below the opening in the main body.

  Thereby, even if solids such as dead leaves and garbage are contained in the flowing rainwater, they are collected by the filter member. Therefore, clogging due to solid matter is prevented.

  In addition, the main body includes a side plate formed or formed with an introduction port for introducing rainwater, and the rainwater infiltrating masu is disposed in the main body, and the internal space of the main body is gradually introduced into the introduction port. A partition plate in which a circulation port for guiding rainwater from the introduction space to the rainwater infiltration space is formed at a position directly below the opening. Also good.

  According to the rainwater permeation system, the rainwater introduced from the introduction port once flows into the introduction space, and then is guided to the rainwater penetration space through the circulation port. Since rainwater permeation is buried in the ground, it is necessary to dig a hole deeper than the vertical length of rainwater permeation. However, according to the above-mentioned rainwater infiltration, the rainwater introduction pipe for introducing rainwater is connected to the side wall, so that the rainwater introduction pipe can be prevented from protruding upward. For this reason, the entire length of the rainwater permeation including the rainwater introduction pipe can be kept relatively short. Therefore, it is not necessary to dig a deep hole during installation.

  The rainwater permeating gas may be provided with a filter member disposed below the circulation port in the partition plate.

  According to the rainwater permeating system, the solid matter that flows into the introduction space together with the rainwater is collected by the filter member. Since the filter member is disposed at a position directly below the opening of the top plate, the worker can easily discharge the solid matter collected by the filter member through the opening.

  According to the present invention, it is possible to realize a rainwater infiltration mast that can discharge mud flowing together with rainwater relatively easily.

<Embodiment 1>
-10 rainwater penetration masu-
As shown in FIG. 1, the rainwater infiltration mast 10 according to the first embodiment includes a main body 11 in which a space 11 a for temporarily storing rainwater is formed, a covering member 12 that covers the outer surface of the main body 11, and A standing tube member 13 connected to the upper portion of the main body 11 is provided. This rainwater penetrating masu 10 is a relatively small one that can be embedded in a narrow land such as a garden or a garage in a residential land.

  The main body 11 is formed in a cubic shape or a rectangular parallelepiped shape. However, the shape of the main body 11 is not limited to a cubic shape or a rectangular parallelepiped shape, but may be other shapes. As shown in FIG. 2, the main body 11 includes a bottom plate 14, a side plate 15, and a top plate 16. The materials of the bottom plate 14, the side plate 15 and the top plate 16 are not particularly limited, but in the present embodiment, the bottom plate 14, the side plate 15 and the top plate 16 are formed of synthetic resin. Thereby, the weight reduction of the main body 11 is achieved.

  Although not shown, a plurality of ribs are provided on the inner surface or the outer surface of the bottom plate 14. The bottom plate 14 is reinforced by these ribs. Although not shown, the bottom plate 14 has a plurality of holes. These holes are for discharging rainwater stored in the interior of the main body 11 to the ground.

  As shown in FIG. 1, the side plate 15 is also provided with a plurality of reinforcing ribs 17. The side plate 15 is also formed with a plurality of holes 18 for discharging rainwater stored in the body 11 to the ground. As shown in FIG. 1, the top plate 16 is also provided with a plurality of reinforcing ribs 17.

  However, the bottom plate 14, the side plate 15, and the ribs 17 of the top plate 16 are not necessarily required. Further, the bottom plate 14 and the holes 18 of the side plates 15 are not necessarily required. For example, the hole 18 can be omitted by forming at least one of the bottom plate 14 and the side plate 15 with a water-permeable material (for example, water-permeable plastic). As long as the main body 11 has water permeability as a whole, the hole 18 may be omitted. In the drawings other than FIG. 1, the ribs 17 and the holes 18 are not shown.

  An opening 19 is formed in the top plate 16. The standing tube member 13 is fitted into the opening 19. In the present embodiment, the opening 19 is formed in a circular shape, but the specific shape of the opening 19 is not particularly limited. Moreover, in this embodiment, although the opening 19 is provided in the corner part of the top plate 16 formed in the substantially square shape, the position of the opening 19 is not necessarily limited. However, if the openings 19 are formed at the corners of the top plate 16, it is possible to effectively suppress a decrease in rigidity associated with the formation of the openings 19.

  The covering member 12 is formed by cutting a sheet material made of a water-permeable material such as a nonwoven fabric, a water-permeable film, a woven fabric, a knitted fabric, or the like. The covering member 12 covers the hole 18 provided in the bottom plate 14 and the side plate 15, thereby suppressing the occurrence of clogging due to the entry of earth and sand into the hole 18.

  As shown in FIG. 2, the standing pipe member 13 includes a water conduit connecting cylinder 20, a standing pipe 21, and a lid 22 in order from the bottom. The vertical pipe 21 is fitted into the water conduit connecting cylinder 20 from above, and the lid 22 covers the upper opening of the vertical pipe 21 so as to be freely opened and closed. Note that an adjuster capable of adjusting the vertical length may be provided instead of or together with the vertical pipe 21. The water conduit connecting cylinder 20 is formed in a shape in which a receiving port 41 for connecting the water conduit 23 is provided on the side of a cylindrical member extending in the vertical direction. Therefore, the lower side of the conduit pipe connecting cylinder 20 is open. The lower portion of the conduit pipe connecting cylinder 20 is fitted into the opening 19 of the top plate 16. Rainwater that has flowed through the water conduit 23 flows into the internal space 11a of the main body 11 through the water conduit connection cylinder 20 and the opening 19, and is temporarily stored in the internal space 11a. Note that the upper opening 21 a of the riser 21 and the lower opening 20 a of the conduit connection cylinder 20 correspond to “upper opening” and “lower opening” of the riser member 13, respectively.

  As shown in FIG. 1, a basket 24 is disposed below the opening 19 in the main body 11. The basket 24 is a filter member for removing solids (for example, pebbles, dead leaves, garbage, etc.) contained in rainwater. When solid matter is mixed in the rainwater flowing from the opening 19, the solid matter is collected by the basket 24. A flange portion 24 a is provided at the upper end of the basket 24. Around the opening 19 of the top plate 16, a step portion 16a that supports the flange portion 24a is formed. The outer diameter of the barrel portion of the basket 24 is smaller than the inner diameter of the opening 19. That is, the basket 24 is formed in a size that can be inserted into the main body 11 through the opening 19. When the basket 24 is inserted into the opening 19 from above, the flange portion 24a is eventually caught by the stepped portion 16a of the top plate 16, and the basket 24 is supported by the top plate 16 at a predetermined position in the main body 11. Although the material of the basket 24 is not particularly limited, in the present embodiment, the basket 24 is made of polyethylene.

  As shown in FIG. 2, an inclined plate 25 is provided on the lower side of the inside of the main body 11. An opening 26 is formed at a position directly below the opening 19 in the inclined plate 25, and a mud reservoir 27 is formed below the opening 26. The mud reservoir 27 is lower than its surroundings. Specifically, in the present embodiment, a portion of the bottom plate 14 directly below the opening 26 constitutes a mud reservoir 27, and the vertical position of the mud reservoir 27 is a peripheral edge portion 26 a of the opening 26 in the inclined plate 25. It is lower than the vertical position.

  The inclined plate 25 according to the present embodiment is a plate that is uniformly inclined toward the opening 26. In other words, the inclined plate 25 is inclined obliquely downward toward the mud reservoir 27. However, the inclined plate 25 only needs to guide mud contained in rainwater to the mud reservoir 27, and the entire plate does not necessarily have to be uniformly inclined. A part of the inclined plate 25 may not be inclined. Further, a part of the inclined plate 25 may be inclined toward a place other than the opening 26.

  As described above, the opening 26 of the inclined plate 25 is formed at a position directly below the opening 19 of the top plate 16. In other words, the opening 19 of the top plate 16 is disposed at a position directly above the mud reservoir 27. That is, the opening 19 and the mud reservoir 26 are provided at positions overlapping in the vertical direction. Therefore, as shown in FIG. 3, when the rainwater permeation tank 10 is viewed from above, the mud reservoir 26 can be visually recognized through the opening 19 (strictly, the basket 24 and the bucket 28 can be visually recognized through the opening 19. it can).

  As shown in FIG. 2, a bucket 28 is disposed in the mud reservoir 27. The bucket 28 is a container that collects the mud collected in the mud reservoir 27. As shown in FIG. 4, in the present embodiment, the bucket 28 is formed in a bottomed cylindrical shape, and is detachably fitted into the opening 26 of the inclined plate 25. The bucket 28 is provided with a handle 28a. The bucket 28 is formed in a size that can be inserted from the opening 19 of the top plate 16. Specifically, the outer diameter of the bucket 28 is smaller than the inner diameter of the opening 19. Therefore, the bucket 28 can be inserted into the main body 11 through the opening 19 and can be taken out of the main body 11 through the opening 19. The material of the bucket 28 is not particularly limited, but in the present embodiment, the bucket 28 is made of polyethylene.

  The inclined plate 25 has water permeability. That is, the inclined plate 25 has a property of allowing rainwater on the upper side of the inclined plate 25 to pass downward. The means for imparting water permeability to the inclined plate 25 is not limited at all. For example, the inclined plate 25 may be formed of a water-permeable material. Further, the inclined plate 25 may be provided with minute holes that allow rainwater to permeate but not allow mud to permeate. However, if the bucket 28 has water permeability, the inclined plate 25 may not have water permeability.

  As shown in FIG. 2, a rainwater infiltration space 30 is defined between the inclined plate 25 and the bottom plate 14. Rainwater that has passed through the inclined plate 25 is temporarily stored in the rainwater infiltration space 30. As described above, in the rainwater permeation method of the present embodiment, the space 30 on the back side of the inclined plate 25 is also effectively used as a space for storing rainwater.

-How to install rainwater penetration
Next, the installation method of rainwater penetration masu 10 will be described. When installing the rainwater infiltration mast 10, first, a hole larger than the rainwater infiltration mast 10 is drilled. In addition, after embedding the rainwater infiltration mast 10, the lid 22 of the standing pipe member 13 is flush with the ground surface GL (see FIG. 2). Therefore, the hole needs to be excavated to a depth corresponding to the total vertical length of the main body 11 and the standing pipe member 13. After drilling the hole, the main body 11 is installed in the hole. Then, the water conduit 23 is connected to the water conduit connection cylinder 20 of the standing pipe member 13. Thereafter, the hole is backfilled until the lid 22 of the standing pipe member 13 is flush with the ground surface GL. Thereby, rainwater penetration mast 10 can be buried in the soil. In addition, although the rainwater permeation mast 10 can be used alone, a plurality of rainwater permeation masts 10 may be connected to each other via a water conduit 23 as shown in FIG.

-Function of rainwater penetration-
When it rains, rainwater flows from the water conduit 23. The rainwater that has flowed from the water conduit 23 into the water conduit connecting cylinder 20 flows into the interior of the main body 11 through the opening 19 of the top plate 16 of the main body 11. At this time, solids (for example, pebbles, dead leaves, garbage, etc.) contained in the rainwater are collected by the basket 24. The rainwater that has flowed into the interior of the main body 11 is temporarily stored in the internal space 11a, and gradually flows out of the main body 11 by slowly passing through the side plate 15 and the bottom plate 14. At this time, the mud contained in the rainwater settles and is guided to the mud reservoir 27 along the inclination of the inclined plate 25 (see arrow D in FIG. 2). As a result, mud contained in the rainwater is collected in the bucket 28 provided in the mud reservoir 27. Thus, according to the rainwater penetration mast 10 according to the present embodiment, since most of the mud contained in the rainwater is collected in the bucket 28, clogging by mud on the side plate 15 and the bottom plate 14 is suppressed.

-Maintenance of rainwater penetration-
By the way, when the amount of mud collected in the bucket 28 increases, the mud cannot be completely collected in the bucket 28 and overflows from the bucket 28. Therefore, it is preferable to perform maintenance of rainwater infiltration 10 regularly or irregularly. The maintenance of rainwater infiltration 10 is performed as follows.

  That is, the worker first opens the lid 22 of the standing tube member 13. Next, the worker inserts his hand into the vertical tube 21 from above and pulls up the basket 24 to the ground through the opening 19 of the top plate 16. Next, the worker again inserts his hand into the vertical pipe 21 from above, grasps the handle 28a of the bucket 28, and lifts the bucket 28 to the ground. Then, the solid matter accumulated in the basket 24 is discharged, and the mud collected in the bucket 28 is washed away. Thereby, the basket 24 and the bucket 28 return to the original state. After cleaning the basket 24 and the bucket 28 in this manner, the bucket 28 is fitted into the opening 26 of the inclined plate 25 through the opening 19 of the vertical tube 21 and the top plate 16, and then the basket 24 is opened to the opening 19 of the top plate 16. Fit into. Then, the lid 22 of the standing tube member 13 is closed. As described above, the maintenance work for the rainwater infiltration 10 is completed.

-Effect of the embodiment-
As described above, according to the rainwater infiltration mast 10 according to the present embodiment, the mud reservoir 27 that is lower than the surroundings is provided inside the main body 11. Therefore, mud contained in the rainwater introduced into the main body 11 can be recovered in the mud reservoir 27. Furthermore, according to the rainwater penetration mast 10 according to the present embodiment, the opening 19 of the top plate 16 is formed at a position directly above the mud reservoir 27. Therefore, although the main body 11 is not so large as to be put in by the worker, the worker can discharge the mud collected in the mud reservoir 27 through the opening 19 of the top plate 16 in a lump. Therefore, according to the rainwater penetration mast 10 according to the present embodiment, mud flowing together with rainwater can be discharged relatively easily.

  According to the present embodiment, the mud reservoir 27 is provided with a detachable bucket 28. Therefore, the worker can easily discharge the mud in the mud reservoir 27 by taking out the bucket 28 through the opening 19 of the top plate 16. Further, by attaching the cleaned bucket 28 to the mud reservoir 27 through the opening 19 again, the rainwater permeating medium 10 can be easily returned to the initial state where mud is not accumulated. Therefore, it is possible to improve the maintainability of the rainwater permeation 10.

  Further, according to the present embodiment, the inclined plate 25 that is inclined obliquely downward toward the mud reservoir 27 is disposed inside the main body 11. Therefore, mud contained in rainwater can be smoothly guided to the mud reservoir 27. Therefore, the mud contained in rainwater can be efficiently recovered.

  Further, according to the present embodiment, a space 30 capable of storing rainwater is formed between the inclined plate 25 and the bottom plate 14 of the main body 11. Therefore, the provision of the inclined plate 25 does not significantly reduce the internal volume of the main body 11. Therefore, although the inclined plate 25 is provided, the rainwater storage volume of the main body 11 can be sufficiently secured.

  Moreover, according to this embodiment, the standing pipe member 13 which has the conduit pipe connection cylinder 20 is provided above the main body 11 more. Therefore, after installing the main body 11 in the excavated hole, a pipe for introducing rainwater into the main body 11 can be realized by a simple operation of simply connecting the water guide pipe 23 to the water guide pipe connecting cylinder 20. Moreover, the above-mentioned maintenance operation | work can be easily performed by removing the lid | cover 22 of the standing tube member 13, and inserting a hand in the standing tube 21. FIG.

  Further, according to the present embodiment, the basket 24 is disposed below the opening 19 of the top plate 16 of the main body 11. Therefore, the solid matter contained in the rainwater can be collected by the basket 24. Therefore, the main body 11 can be prevented from being clogged with solid matter.

<Embodiment 2>
As shown in FIG. 6 and FIG. 7, the rainwater penetration mast 10 according to the second embodiment is such that the water conduit 23 is connected to the main body 11.

  As shown in FIG. 6, the rainwater penetrating mast 10 according to the second embodiment includes a main body 11 and an inspection cylinder 31 provided on the upper side of the main body 11. The inspection cylinder 31 is fitted in the opening 19 of the top plate 16. A lid 22 is put on the upper side of the inspection cylinder 31. The interior of the main body 11 is divided into an introduction space 33 and a rainwater infiltration space 34 by a partition plate 32.

  The side plate 15 of the main body 11 is formed with an introduction port 44 for introducing rainwater, and the water conduit 23 is inserted into the introduction port 44. The water conduit 23 opens toward the introduction space 33 and guides rainwater to the introduction space 33. The introduction port 44 may be formed in the side plate 15 in advance, or may be formed at the installation site. In other words, the side plate 15 of the main body 11 may be a side plate in which the introduction port 44 is formed in advance, or a side plate in which the introduction port 44 can be formed later.

  A distribution port 35 that guides rainwater from the introduction space 33 to the rainwater infiltration space 34 is formed at a position directly below the opening 19 of the top plate 16 in the partition plate 32. The basket 24 is fitted into the circulation port 35. The basket 24 is supported by the peripheral edge portion of the circulation port 35 of the partition plate 32. The partition plate 32 is inclined obliquely downward toward the circulation port 35. That is, the partition plate 32 is inclined obliquely downward toward the basket 24. Therefore, the rainwater introduced from the water conduit 23 and the solid matter contained in the rainwater are guided to the basket 24 along the inclination of the partition plate 32. The solid matter contained in the rainwater is collected by the basket 24. On the other hand, rainwater passes through the basket 24 and flows into the rainwater infiltration space 34. Thereafter, in the same manner as in the first embodiment, mud contained in the rainwater is collected in the bucket 28, and the rainwater passes through the side plate 15 and the bottom plate 14 and is discharged from the main body 11.

  Since other configurations are the same as those of the embodiment, description thereof will be omitted. Also in this embodiment, the opening 19 of the top plate 16, the basket 24, and the bucket 28 of the mud reservoir 27 are arranged in a straight line in the vertical direction.

  Also in the present embodiment, the mud contained in the rainwater is collected in the bucket 28 of the mud reservoir 27 as in the first embodiment. As described above, the opening 19, the basket 24, and the bucket 28 of the top plate 16 are arranged in a straight line in the vertical direction, so that the operator opens the lid 22 of the inspection cylinder 31 and opens the inspection cylinder 31 and the opening 19. By inserting a hand, the basket 24 and the bucket 28 can be easily taken out. Further, the bucket 28 and the basket 24 can be easily mounted through the inspection cylinder 31 and the opening 19. Therefore, also in the present embodiment, as in the first embodiment, mud that flows in along with rainwater can be discharged relatively easily.

  Furthermore, according to the present embodiment, the water conduit 23 is connected to the side plate 15 of the main body 11, and the water conduit connection cylinder 20 is not provided on the upper side of the main body 11. Therefore, the vertical length of rainwater permeating mast 10 is relatively short. As described above, when installing the rainwater infiltration mast 10, it is necessary to excavate a hole having a depth equivalent to the vertical length of the rainwater infiltration mast 10. However, according to this embodiment, since the vertical length of the rainwater permeation tank 10 is relatively short, the depth of the hole to be excavated can be made relatively shallow. Therefore, the installation work of rainwater permeating mast 10 becomes easier.

  As described above, the partition plate 32 is inclined obliquely downward toward the circulation port 35, and the basket 24 is provided below the circulation port 35. Therefore, the solid matter that flows along with the rainwater from the water conduit 23 is guided to the basket 24 along the inclination of the partition plate 32 and is collected in the basket 24. The basket 24 is provided at a position directly below the opening 19 of the top plate 16. Therefore, the worker can easily discharge the solid matter contained in the rainwater through the opening 19 of the top plate 16.

<Other embodiments>
The rainwater infiltration basin according to the present invention is not limited to the above embodiments, but can be implemented in various other forms. Hereinafter, other embodiments will be described.

  As shown in FIGS. 2 and 12, in each of the above embodiments, the bottom plate 14 of the main body 11 is a flat plate, and the opening 26 of the inclined plate 25 is formed at a position higher than the bottom plate 14. However, as shown in FIG. 8, a part of the bottom plate 14 may be recessed downward, and the recessed portion may form a mud reservoir 27. In this embodiment, the opening 26 of the inclined plate 25 is formed at substantially the same height as the bottom plate 14. Also in the present embodiment, mud contained in rainwater is guided to the bucket 28 of the mud reservoir 27 by the inclined plate 25 and collected in the bucket 28. According to the present embodiment, the volume of the space 30 formed between the inclined plate 25 and the bottom plate 14 can be kept relatively small.

  As described above, the bucket 28 can be omitted. For example, as illustrated in FIG. 9, the inclined plate 25 may be inclined obliquely downward toward a position directly below the opening 19 of the top plate 16, and the opening may not be formed at that position. According to the present embodiment, the mud 50 contained in the rainwater is guided by the inclined plate 25 to a position directly below the opening 19 of the top plate 16 and is accumulated at that position. When performing maintenance, for example, an operator can insert the suction device 40 from the opening 19 of the top plate 16 and can suck and remove the mud 50 at once by the suction device 40. Therefore, also in this embodiment, mud that flows in along with rainwater can be discharged relatively easily.

  In the embodiment, the mud reservoir 27 that is lower than the surroundings is formed by providing the inclined plate 25. However, the mud reservoir 27 only needs to be lower than the surroundings, and the inclined plate 25 is not necessarily required. For example, as shown in FIG. 10, instead of the inclined plate 25, a flat plate 36 having an opening 26 formed at a position directly below the opening 19 of the top plate 16 may be provided. In the present embodiment, the portion below the opening 26 of the flat plate 36 becomes the mud reservoir 27. The mud reservoir 27 is one step lower than the surrounding area (the peripheral edge 36a of the opening 26 of the flat plate 36). Also in this embodiment, the mud reservoir 27 is provided with a bucket 28. Although it is easier to guide mud to the mud reservoir 27 if the inclined plate 25 is used, mud can be accumulated in the mud reservoir 27 even in this embodiment. This is because mud naturally flows with rainwater from high to low. Also in this embodiment, mud can be discharged relatively easily through the opening 19 of the top plate 16.

  As shown in FIG. 11, a recess serving as a mud reservoir 27 may be provided at a position directly below the opening 19 of the top plate 16 in the bottom plate 14 of the main body 11. In this case, the flat plate 36 (see FIG. 10) can be omitted.

  Although illustration is omitted, instead of the inclined plate 25, a stepped plate whose height gradually decreases toward a position directly below the opening 19 of the top plate 16 may be provided.

  In each of the above embodiments, the main body 11 has a cubic shape or a rectangular parallelepiped shape. However, the shape of the main body 11 is not particularly limited. For example, as shown in FIGS. 12A and 12B, the main body 11 may have a sealed cylindrical shape. In this embodiment, a substantially disc-shaped inclined plate 37 is disposed inside the main body 11. An opening 38 is formed in the central portion of the inclined plate 37, and the inclined plate 37 is inclined obliquely downward toward the opening 38. Below the opening 38 of the inclined plate 37 is a mud reservoir 27, and the bucket 28 is fitted into the opening 38 of the inclined plate 37. Although illustration is omitted, as in the first embodiment, an opening is formed in the top plate of the main body 11, and a standing tube member is fitted into the opening from above. In this embodiment as well, the opening of the top plate is provided at a position directly above the mud reservoir 27.

  As shown in FIG. 13, the central portion of the bottom plate 39 of the closed cylindrical main body 11 may be recessed downward, and the recessed portion may form a mud reservoir 27. In this embodiment, the bottom plate 39 of the main body 11 is inclined obliquely downward toward the mud reservoir 27. Also in the present embodiment, the opening of the top plate is provided at a position directly above the mud reservoir 27.

  In the first embodiment, the opening 19 for introducing rainwater into the main body 11 also serves as an opening for maintenance work. However, it is of course possible to form an opening for maintenance work separately from the opening 19 for introducing rainwater.

  In the first embodiment, the main body 11 and the standing pipe member 13 are separate members. However, the main body 11 and the standing pipe member 13 may be integrated.

  The present invention is useful for rainwater penetration.

It is a front view which cuts and shows a part of rainwater penetration mast which concerns on Embodiment 1. FIG. FIG. 3 is a cross-sectional view of a rainwater permeation mask according to Embodiment 1. FIG. 3 is a plan view of a rainwater permeation mask according to the first embodiment. FIG. 3 is an exploded perspective view of a part of a rainwater permeating apparatus according to Embodiment 1. It is a perspective view which shows the example of installation of the rainwater permeable mast which concerns on Embodiment 1. FIG. FIG. 6 is a cross-sectional view of a rainwater permeating apparatus according to Embodiment 2. It is a perspective view which shows the example of installation of the rainwater permeable mast which concerns on Embodiment 2. FIG. FIG. 6 is a partial cross-sectional view of a rainwater infiltration mast according to a modification. FIG. 6 is a partial cross-sectional view of a rainwater infiltration mast according to a modification. FIG. 6 is a partial cross-sectional view of a rainwater infiltration mast according to a modification. FIG. 6 is a partial cross-sectional view of a rainwater infiltration mast according to a modification. (A) is a disassembled perspective view of a part of a rainwater permeation mast according to a modification, and (b) is a sectional view thereof. It is a perspective view of the rainwater penetration masu which concerns on a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Rainwater penetration 11 Mass body 12 Cover member 13 Standing tube member 14 Bottom plate 15 Side plate 16 Top plate 19 Opening 20 Water guide tube connection cylinder 21 Stand tube 22 Lid 23 Water guide tube 24 Basket (filter member)
25 Inclined plate 27 Mud reservoir 28 Bucket (container)
32 Partition plate 33 Introduction space 34 Rainwater infiltration space 35 Distribution port 44 Introduction port

Claims (8)

And mass body space is formed for temporarily storing rainwater in the inner portion,
In the said main body, the mud reservoir part which became lower than the surroundings,
With vertical pipe members
With
The main body is
It has a top plate with an opening formed at a position directly above the mud reservoir,
The vertical pipe member is
An upper opening;
A lower opening,
A lid covering the upper opening;
Have
Connected to the top plate so that the lower opening and the opening of the top plate are aligned vertically,
A pipe for introducing rainwater into the vertical pipe member is connected to the side of the vertical pipe member.
Rainwater penetration. A filter member disposed below the opening in the main body;
Rainwater infiltration according to claim 1. A main body in which a space for temporarily storing rainwater is formed,
In the said main body, the mud reservoir part which became lower than the surroundings,
With
The main body is
A top plate in which an opening is formed at a position directly above the mud reservoir,
A side plate formed with an inlet for introducing rainwater;
Have
Distributing in the main body, partitioning the internal space of the main body into an introduction space on the inlet side and a rainwater infiltration space on the mud reservoir side, and leading rainwater from the introduction space to the rainwater infiltration space The mouth includes a partition plate formed at a position directly below the opening.
Rainwater penetration. A filter member is disposed below the circulation port in the partition plate,
Rainwater penetration as claimed in claim 3. The said partition plate permeates rainwater as described in Claim 3 or 4 which inclines diagonally downward toward the said distribution port. In the rainwater infiltration basin described in any one of claims 1 to 5 ,
Rain water infiltration with a detachable container in the mud reservoir. In the rainwater infiltration basin described in any one of claims 1 to 6 ,
The rainwater infiltration is provided with an inclined plate that is disposed within the main body or forms a part of the bottom plate of the main body, and that is inclined obliquely downward toward the mud reservoir. In the rainwater infiltration medium described in any one of claims 1 to 7 ,
The main body has a bottom plate;
Further comprising an inclined plate disposed in the main body and inclined obliquely downward toward the mud reservoir,
A space that can store rainwater is formed between the inclined plate and the bottom plate.

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