JP2000352079A - Rainwater storage method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rainwater storage method and device which is capable of collecting rainwater falling onto the top surface of a building to store in one or plural water storage containers at a desired position and at a desired level, letting rainwater exceeding a specified water level to overflow to an original drain port to be applied to various applications, which can be executed in simple structure and at a relatively low cost, and of which maintenance performance and workability are excellent. SOLUTION: Rainwater 26 in an eaves gutter 13 drops along a down pipe 11 to be guided to an upper end of an inner cylinder 2' to be temporarily stored between the inner cylinder 2' and an outer cylinder 3' surrounding that, and is introduced from a rainwater takeout port 4 through a connection pipe 6 into a water storage container 5. The water storage container 5 can be easily disposed to a desired position by connection by a connection pipe 6. A level 25 of the water storage container 5 corresponds to the position of an opening part 9 at an upper end of the inner cylinder 2', and by adjusting the position of the opening part 9 of the inner cylinder 2', the level 25 can be adjusted to a desired level. The inner cylinder 2' and the outer cylinder 3' are separated bodies which can be separated from each other, thereby construction and maintenance can be conducted easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is effective for temporarily storing rainwater in a gutter installed in a building or the like at a predetermined level and draining the water, or storing the water at a desired level in a water storage container at an arbitrary position. The present invention relates to a method and an apparatus for storing and draining rainwater.

[0002]

2. Description of the Related Art Conventionally, rainwater that has fallen on the top surface of a building such as a house is collected by an eaves gutter and is discharged directly to the ground through standing gutters provided in several places, or separately. In most cases, treatment was carried out by draining along the installed drain pipes and drains. Also, in the case of using rainwater, a water tank is constructed and the rainwater is guided to the water tank, and the rainwater exceeding the storage amount of the water tank is overflowed from the water tank for treatment.

[0003] On the other hand, various techniques for storing rainwater in a container or a water tank have conventionally been adopted. For example, Japanese Utility Model Publication No. 7-12516, Japanese Utility Model Publication No. 7-12561,
JP-A-7-25056 and JP-A-9-67838 are examples.

[0004]

In the case of the above-mentioned prior art, arranging and constructing drainage pipes and drainage grooves requires a lot of cost, and cannot be easily adopted in ordinary households. Also, for the water tank, a general container cannot be used as it is, it is necessary to construct a special shape, and it is necessary to install a pipe connecting the water tank side and the upspout side, an overflow pipe, etc. Cost. In addition, there is a problem that the water tank is fixed and cannot be installed at an arbitrary position.

[0005] The above-mentioned known techniques have their respective features. In these cases, a water storage container or a water storage tank is arranged near the upright gutter, and all are connected to the upright side by an inclined pipe. Most of them. That is, it has a structure in which it is difficult to install a water storage container or the like at a location away from the standing gutter side, at a high place, or below the ground. Further, in the case of these known techniques, it is difficult to adjust the water storage level in a water storage container or the like to a desired arbitrary height. Further, there is no sufficient disclosure of a means for smoothly introducing rainwater falling from the rising gutter into the water storage container. Further, it is common that foreign substances such as dead leaves are mixed in rainwater. However, the above-mentioned known technology hardly discloses a removing means when these are accumulated in the apparatus.

The present invention has been made in view of the above circumstances, and stores rainwater falling from a vertical gutter at a desired level to drain or smoothly and reliably take out rainwater at an arbitrary position. Water can be stored at a desired level in a water container with a simple structure,
While the level can be easily adjusted, one or more water storage containers can be provided, and furthermore, a plurality of connecting pipes can be connected to one water storage container to enable simultaneous use on the other surface,
It is another object of the present invention to provide a rainwater storage method and apparatus capable of reducing installation costs and construction costs.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for temporarily storing rainwater falling in an upright gutter and connecting the rainwater with a rainwater outlet. Build a water level, introduce this temporarily stored water into a water storage container at an arbitrary position, store the water at a desired level, and, when the stored water exceeds the level, overflow the temporarily stored water from the side. The method is characterized by a rainwater storage method in which the above-mentioned level is maintained by being introduced into the underground drain port side.

According to another aspect of the present invention, there is provided a rainwater storage unit which is connected to a vertical gutter and temporarily stores rainwater falling from the vertical gutter. An overflow discharge section formed to overflow when the water level in the rainwater storage section reaches a predetermined level and to be introduced to the discharge port side; and the rainwater storage section installed below the rainwater storage section. A rainwater outlet for draining rainwater inside the unit to the outside is provided, and a rainwater storage device is formed to establish a water level between the rainwater outlet and the rainwater storage unit.

According to a third aspect of the present invention, an upper end portion is connected or approached to a lower end of the upright gutter, extends toward the ground side along a hanging direction of the upright gutter, and is reduced in diameter toward the upper end portion. The overflow discharge portion comprising an inner cylinder that forms a tapered portion or a semi-arc-shaped surface and forms an opening for overflow at or near the top of the tapered portion or the semi-arc-shaped surface, the inner cylinder and the upright gutter. And an outer cylinder disposed so as to enclose the upper and lower portions of the outer cylinder at appropriate intervals, and a support member which is provided between the outer cylinder and the inner cylinder and forms a bottom of the outer cylinder. A rainwater storage device comprising: a rainwater storage unit provided; and the rainwater outlet disposed above a position where the support member of the outer cylinder is disposed.

[0010] Further, as set forth in claim 4, an upper end portion is connected to or close to the lower end of the upright gutter, and the cylindrical rainwater storage portion has a bottom portion at the lower end and an opening for overflow on the upper side. And the cylindrical overflow overflow portion having a drain port connected to the rainwater storage portion and arranged at the lower end side and communicating with the discharge port side, and the lower end side of the rainwater storage portion. A rainwater outlet provided near the bottom surface.

The U-shaped rainwater storage section may be configured such that one upper end is connected to or close to the lower end of the upright gutter and an opening is formed in the other upper end. An inverted U-shaped tubular overflowing drain portion that communicates one end to the opening of the rainwater storage portion and communicates the other end to the drain port side, and is disposed near the bottom surface of the rainwater storage portion. And a rainwater outlet that is provided.

According to a sixth aspect of the present invention, the rainwater storage section and the overflow discharge section are integrally formed or formed so as to be separable.

Further, as set forth in claim 7, a cleaning port for discharging dead leaves, dust and the like in the rainwater storage portion is formed on the bottom side of the rainwater storage portion.

Further, as set forth in claim 8, the rainwater storage device is provided with a moving means for adjusting a water head for raising and lowering the device to make the overflow position variable.

According to another aspect of the present invention, there is provided a rainwater storage section which is connected to a vertical gutter and temporarily stores rainwater falling from the vertical gutter. An overflow discharge section formed so as to overflow when the water level in the rainwater storage section reaches a predetermined level and to be introduced to the discharge port side; and a rainwater storage section provided below the rainwater storage section and installed inside the rainwater storage section. A rainwater outlet for draining rainwater from the outside, and a water storage container connected to the rainwater outlet, wherein a water level is established between the rainwater outlet and the rainwater reservoir and A rainwater storage device is formed on the container side so as to store the water at the water level.

According to a tenth aspect of the present invention, a plurality of the rainwater outlets are formed, and the plurality of water reservoirs or pipes (hoses) are connected to the rainwater outlets.

Further, as set forth in claim 11, one or more water storage containers are further connected to the water storage container.

According to the rainwater storage device of the present invention, the rainwater that has fallen from the vertical gutter is temporarily stored in the rainwater storage part, and establishes a water level with the rainwater outlet, and the water level from the rainwater outlet depends on the water level. Rainwater with water pressure can be drained. When rainwater is introduced so as to exceed the water level of the rainwater storage section, the rainwater is introduced from the overflow outlet to the discharge port side and drained. It should be noted that various structures are conceivable for the rainwater storage unit and the overflow takeout unit, and some of them are given as embodiments in the present invention.

Further, the rainwater storage section and the overflow takeout section are integrated into a compact type having an integral structure, and are formed of two or a plurality of split types, so that the manufacturability and the internal cleaning are facilitated. I can do it.

Further, in the present invention, since the cleaning port for discharging dead leaves, dust and the like is provided in the rainwater storage section, the frequency of maintenance inside the apparatus is reduced, and the apparatus can be used as it is for a long time.

Further, according to the present invention, since the level position until the rainwater overflows can be variably adjusted, water can be stored to a desired water level.

In the present invention, since the water storage container at an arbitrary position can be easily connected to the apparatus main body, various types of water storage can be used. In particular, rainwater can be effectively used at a position away from the apparatus main body. In addition, since a plurality of water storage containers, pipes (hoses), and the like can be connected to the apparatus main body side, rainwater can be simultaneously used and used at each location.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a rainwater storage method and a rainwater storage apparatus according to the present invention will be described below in detail with reference to the drawings.
FIG. 1 shows an embodiment according to the first and ninth aspects. As shown in FIG. 1, a rainwater storage device 1 temporarily stores rainwater and an overflow outlet 3 for guiding overflow to a discharge port side. An apparatus main body 100 having a rainwater storage section 2 to be stored, a rainwater outlet 4 for taking out rainwater in the rainwater storage section 2 to the outside, and the like, and connected to this by a pipe or a hose (hereinafter referred to as a connection pipe 6). Water storage container 5 and the like. As shown in FIG. 1, as the overflow discharge part 2, as shown in FIGS.
2 "is applied, and the inner cylinders 2 ', 2"
The outer cylinder 3 ′ surrounding (according to claim 3, claim 5) is 1
One embodiment is shown. Further, as shown in FIG. 1, in the present embodiment, the connecting pipe 6 is shown as being flexible as shown by a two-dot chain line, but is not limited to this. Further, an extraction tool 8 for extracting and using the water stored in the water storage container 5 can be connected to the water storage container 5 (indicated by a dotted line). In this case, any known technique is applied to the removal tool 8, and a detailed description thereof will be omitted.

In the present embodiment, the inner cylinder 2 'is formed in the shape of an elongated hollow pipe having openings 9 and 10 on the upper and lower surfaces, and the inner cylinder 2 may have any cross-sectional shape. 1
The same or similar cross-sectional shape as 1 is desirable for improving the smoothness of rainwater falling. In this embodiment, the inner cylinder 2 'has a circular cross section. Further, in the present embodiment, a tapered portion 12 is formed on the upper end side of the inner cylinder 2 ′ so as to decrease in diameter toward the lower end 15 of the vertical gutter 11, and the opening 9 formed at the upper end of the tapered portion 12 is formed. The inside diameter is smaller than the inside diameter of the vertical gutter 11. In addition, as shown in FIG. 1, the eaves gutter 11 is formed of a hollow pipe having an upper end connected to the eaves gutter 13 and hanging almost vertically toward the inside of the ground.
The lower end 15 is disposed so as to face the upper end of the inner cylinder 2 via a gap 16 as appropriate. Accordingly, the inner tube 2 'is provided with the rising gutter 11 disposed on the same axis as shown in the drawing and extending toward the ground 14 side, and the opening 10 at the lower end thereof is opened toward the ground 14 side. It is arranged. The shape and diameter of the inner cylinder 2 ′ may be the same as or different from those of the uprights 11.

The outer cylinder 3 'is formed as a hollow pipe having an inner diameter larger than the outer diameter of the inner cylinder 2', and a rainwater outlet 4 is connected to the outer surface of the outer cylinder 3 'below the intermediate portion. Between the inner surface of the outer tube 3 'and the outer surface of the inner tube 2', a support member 17 integral with or fitted to the inner tube 2 'is interposed. The supporting member 17 holds the outer cylinder 3 'or the inner cylinder 2' so as to be slidable with respect to the inner cylinder 2 'or the outer cylinder 3', and minimizes rainwater leakage from the sliding portion. A structure is desirable. In the present embodiment, the support member 17 employs a type in which the outer surface of the inner cylinder 2 'directly abuts on the inner surface to hold the bearing, and the support member 17 is provided between the outer surface of the support member 17 and the inner surface of the outer cylinder 3'. Although a type in which the sealing property is improved by interposing the sealing member 18 is employed, the present invention is not limited thereto. Alternatively, the inner and outer cylinders 2 'and 3' may be integrally moved up and down as a whole.

The outer cylinder 3 'is connected to the lower end 1 of the upright 11 as shown in the figure.
5 including the gap 16 between the upper end of the inner cylinder 2 '
The rainwater outlet 4 is disposed above the support member 17 so as to cover the outer surface of the inner cylinder 2 ′. The enclosing position of the outer cylinder 3 'with respect to the upright gutter 11 and the inner cylinder 2' is variable and adjustable in the axial direction by the above-mentioned support structure. When the adjustment position is determined, it is desirable to hold the outer cylinder 3 'to the inner cylinder 2' using a fastener (not shown) or the like. As described above, rainwater is temporarily stored in a space formed above the support member 17 between the inner surface of the outer tube 3 'and the outer surfaces of the uprights 11 and the inner tube 2'. In this case, the level of the accumulated rainwater is held by the head held against the rainwater outlet 4,
As will be described later, water can be supplied to the water storage container 5 installed at a remote position. The head varies depending on the installation location of the water storage container 5, the inner diameter of the connecting pipe 6, and the like.
mm is desirable.

A hollow support cylinder 20 is usually buried on the ground 14 side, and a support member 21 is provided between the hollow cylinder 20 and the inner cylinder 2 'whose lower end is inserted into the upper end of the hollow support cylinder 20. It is interposed. In the present embodiment, the support member 21 is a bush-like member fixed to the hollow support cylinder 20 via a seal member 22, and has a structure in which the inner cylinder 2 'is slidably held on its inner surface. However, the present invention is not particularly limited to this.

As shown in FIG. 3, the inner cylinder 2 "is formed as a hollow pipe having an opening (not shown) at the lower end, but has a semi-arc surface 28 which is closed at the upper end and which is rounded in an arc shape. Also, an appropriate number of openings 29 are formed in the vicinity of the semi-arc surface 28. The support member 17a interposed between the inner cylinder 2 "and the outer cylinder 3 'is the same as that described above. Unlike the support member 17, the support member 17 does not include the seal member 18 (FIG. 1). The support member 17 functions as a receiving bush that slidably supports the inner cylinder 2 ″ and the outer cylinder 3 ′.
With the positioning of the inner cylinder 2 "and the outer cylinder 3 'determined, the position of the support member 17a is tightened by the fasteners 30 to fix the inner cylinder 2" and the outer cylinder 3' at predetermined positions. In this structure, the portion of the opening 29 corresponds to a desired level. Although the rainwater outlet 4 is formed at one place in the outer cylinder 3 'in FIGS. 1 to 3, a plurality of rainwater outlets 4 may be provided in addition to the rainwater outlet 4 as shown in FIG. . This rainwater outlet 4,
4 'may be arranged at the same level position or at different level positions. By providing a plurality of rainwater outlets 4, 4 ', water is stored in a plurality of water storage containers 5.

In the case of the inner cylinder 2 "having the structure shown in FIGS. 3 and 4, the rainwater that has fallen from the upright gutter 11 flows along the curve of the half-arc surface 28 between the inner cylinder 2" and the outer cylinder 3 '. Temporary storage unit 19 between
Temporarily accumulates in the water, and from the rainwater outlet 4 to the water reservoir 5 (FIG. 1)
Sent to the side. Further, as described above, the level of the water storage container 5 is maintained at a desired level by the position of the opening 29.
In addition, irrespective of the present configuration and the reduced diameter shown in FIG. 1, it is possible to simplify the structure by making the upper part of the inner cylinder 2 ″ substantially the same diameter as the upright gutter 11 at the expense of rainwater collection efficiency. .

FIG. 5 shows an apparatus main body 100a according to a fourth aspect, which has a structure different from that of the apparatus main body 100 described above. As shown in FIG. 5 (a), the apparatus main body 100a has an outer cylindrical body 38 corresponding to an overflow taking-out part and a rainwater storage part defined and fixed in the outer cylindrical body 38 via a passage 39. And a corresponding inner cylinder 40 and the like. The outer cylindrical body 38 is formed of a conical cylindrical body having an upper opening 41 communicating with the rising gutter 11 (FIG. 1) and a lower opening 42 communicating with a discharge port (not shown) (FIG. 5B). ). On the other hand, the inner cylindrical body 40 is formed of a cylindrical body housed in the outer cylindrical body 38, and the upper opening 43 is opened in communication with the passage 39 and is disposed near the upper opening 41. The opening 43 corresponds to the level of a water reservoir (not shown). A bottom surface 44 is formed below the inner cylinder 40. The bottom surface 44 is inclined, and a relatively large cleaning port 19 for discharging dead leaves, dust, and the like accumulated in the inner cylindrical body 40 and the like is provided at the inclined end. The cleaning port 19 is opened and closed by a stopper 19a.
In the vicinity of the bottom surface 44, a rainwater outlet 4 opening outward is provided.
Are provided, and the connection pipe 6 is connected. Further, the shapes and dimensions of the upper and lower ends of the apparatus main body 100a may be different.

With the above structure of the apparatus main body 100a, the rainwater that has entered the apparatus main body 100a from the upper opening 41 flows out of the rainwater outlet 4 while accumulating in the inner cylindrical body 40 and accumulates in a water reservoir (not shown). Is accumulated. When a large amount of rainwater enters the inner cylindrical body 40, the rainwater reaches the opening 43 of the inner cylindrical body 40, further overflows from the passage 39 side, and flows from the lower opening 42 to the drain port side. Sent to As described above, substantially the same effects as those of the apparatus main body 100 shown in FIG. 1 and the like can be obtained.

FIG. 6 relates to claim 5 and shows still another apparatus main body 100b of the present invention. This device body 10
Numeral 0b is a curved tube formed by connecting and connecting a U-shaped tube 45 corresponding to a rainwater storage portion and an inverted U-shaped tube 46 corresponding to an overflow discharge portion. The U-shaped tube 45 has an upper opening 47 at one end communicating with the gutter 11 (FIG. 1) and an opening 48 at the other end. On the other hand, the inverted U-shaped pipe 46 has one end communicating with the opening 48 of the U-shaped pipe 45 and the other end having an opening 49 communicating with a drain port (not shown). Note that the position of the opening 48 corresponds to the level of a water reservoir (not shown). A rainwater outlet 4 is provided near the bottom surface of the U-shaped pipe 45, and the connecting pipe 6 is connected thereto. A relatively large cleaning port 19 for discharging dead leaves, dust and the like is provided on the bottom surface of the U-shaped tube 45.
And its stopper 19a. Further, the shapes and dimensions of the upper and lower ends of the apparatus main body 100b may be different.
In FIG. 6, a gap 5 is formed between the U-shaped pipe 45 and the inverted U-shaped pipe 46.
It is not necessary to form the second and the third 53.

With the above structure, the rainwater from the rising gutter 11 (FIG. 1) flows out of the rainwater outlet 4 while being stored in the U-shaped pipe 45, and is stored in a water storage container (not shown). When the amount of rainwater entering the U-shaped pipe 45 is large, the rainwater in the U-shaped pipe 45 flows into the inverted U-shaped pipe 46 beyond the opening 48 and is discharged from the opening 49 to the drain port side. Is done. With the above structure, the apparatus main bodies 100, 100 shown in FIGS.
Almost the same effect as a can be obtained.

The apparatus main bodies 100, 100 described above
a and 100b are of one-piece construction,
It may have a structure that can be divided or divided. FIG. 7 shows the outer cylinder 3 'shown in FIGS. The two divided outer cylinders 3 'are united by another component such as the fastener 31 or the structure of the main body. As a result, foreign materials such as dead leaves and dust accumulated inside can be easily removed along with facilitating the manufacture of components, and the inside can be maintained. Further, these need not be fixedly arranged with respect to the uprights 11, and may be formed so that the arrangement positions thereof can be moved along the uprights 11 by a moving means for adjusting the water head (not shown). Good. In addition, these apparatus main bodies 100, 100
The a and 100b need not be arranged singularly with respect to the uprights 11, but may be arranged above and below the uprights 11. In the above description, the apparatus main bodies 100, 1
Although only the embodiments 00a and 100b have been described as embodiments, the present invention is not limited to these embodiments, and other apparatus bodies having a rainwater storage unit 2, an overflow extraction unit 3, a rainwater outlet 4, and the like are also applicable. You.

Next, the rainwater storage device 1 having the water storage container 5 will be described with reference to FIG. Although 100 is shown as an apparatus main body in the drawing, the apparatus main bodies 100a and 100b are naturally applied. The water storage container 5 may be of any structure, but for example, a simple structure of an ordinary tapered polybucket as shown in FIG. 1 is sufficient. In the present embodiment, the water storage container 5 is shown mounted directly on the ground 14, but the installation position may be arbitrary as described later. A rainwater inlet 23 is provided below the water storage container 5, and the upper opening thereof can be closed by a lid 24. The rainwater outlet 4 of the outer tube 3 'and the rainwater inlet 23 of the water storage container 5 are connected by the flexible connecting pipe 6 as described above. As the connecting pipe 6, a commonly used flexible hose or the like is applied as an example.

Next, a method for storing rainwater by the rainwater storage device 1 having the above structure will be described. First, the level 25 of the water storage 7 to be stored in the water storage container 5 is determined prior to use. Since the level 25 corresponds to the position of the opening 9 at the upper end of the inner cylinder 2 ', as will be described later, the level is obtained by moving the inner cylinder 2' and the outer cylinder 3 'along with it in the axial direction. 25 can be adjusted to a desired level.

The rainwater 26 collected in the eaves gutter 13 is
It is introduced into 1 and falls. Some of the fallen rainwater 26 is directly introduced into the inner cylinder 2 from the opening 9 of the inner cylinder 2 ′, falls, and proceeds to the ground 14 side.
6 is guided by the tapered portion 12 formed at the upper end of the inner cylinder 2 ', smoothly flows between the inner cylinder 2' and the outer cylinder 3 ', and is temporarily stored. The temporarily stored water is sequentially introduced from the rainwater outlet 4 to the connecting pipe 6 side, and is introduced into the water storage container 5 from the rainwater inlet 23 by the head of the temporarily stored water and stored.

When the amount of rainwater 26 dropped is large, the amount of water 7 in the water storage container 5 increases and reaches the level 25. When the water storage 7 reaches the level 25, the level of the temporarily stored water between the inner cylinder 2 'and the outer cylinder 3' matches the position of the opening 9 at the upper end of the inner cylinder 2 ', and the rainwater 26 From the inner cylinder 2 '. Thereafter, the rainwater 26 is continuously dropped into the inner cylinder 2 ', and the rainwater 26 is drained from the opening 10 at the lower end of the inner cylinder 2' to the ground 14 side. As described above, the level 25 in the water storage container 5 is kept constant regardless of the amount of rainwater rainfall. Further, the water storage 7 can be used by opening the lid 24 or using the take-out tool 8 as appropriate.

FIGS. 8 to 10 show various embodiments relating to the installation form of the water storage container 5 connected to the inner cylinder 2 'and the outer cylinder 3' by the connecting pipe 6. Of course, the contents shown in the drawings are shown. However, the present invention is not limited to this. The water storage container 5 shown in FIG. The water stored in the water storage container 5 is appropriately used by opening the valve 38 when necessary. Also, as shown by the two-dot chain line in the figure, the filter 2
7 can be provided on the water storage container 5 side to purify the water storage 7. FIG. 9 shows a water storage container 5 such as a general concrete water tank in which the lower end side is buried in the ground surface 14.

The number of water storage containers 5 connected to the apparatus main body 100 and the like via the connection pipe 6 may be a single one as shown in FIG. 1, but may be a plurality. Further, a plurality of rainwater outlets 4 may be provided as shown in FIG. FIG.
Shows one of the embodiments. A plurality of connecting pipes 6a, 6b, 6c are connected to the two rainwater outlets 4, 4, and the water storage containers 5a, 5b, 5c are respectively connected to these connecting pipes. The water storage containers 5b, 5c are further connected to the water storage containers 5d, 5e, 5f via connection pipes 6d, 6e, 6f. A hose 50 having an on-off valve 51 is directly connected to the water storage container 5f. Thus, various types of rainwater can be used.

FIGS. 11 and 12 show an embodiment in which the rainwater storage device of the present invention is applied to a house. FIG.
Is the main body 100 of the rain water storage device on the first floor of the house 32.
Is shown. Below the standing gutter 11 connected to the eaves gutter 13, an outer cylinder 3 'of the apparatus main body 100 shown in FIG. 1 and the like is shown. In the present embodiment, the flower bed 3 away from the house 32
The water storage container 5 is disposed near the reference numeral 3. In addition, water storage container 5
The water is also stored in another water storage container 5 'at a position away from the water storage. Further, the water storage container 5 'is provided with a faucet 34 which is one of the taking-out tools. As described above, the rainwater is stored and effectively used for watering the flowerbed 33 and for other purposes.
In addition, since the connecting pipe 6 is buried, it does not normally become an obstacle.

FIG. 12 shows a two-story building 34 to which the rainwater storage device of the present invention is applied. The outer cylinder 3 'of the apparatus main body 100 according to the present invention is engaged with the upstairs 11a on the second floor, and the water storage container 5 "is fixedly disposed at an intermediate position of the building 34. Further from this water storage container 5" The water storage is connected to a water tap 36 on the flower bed 33 side via a water pipe 35. Further, the water distribution pipe 3 branched from the water distribution pipe 35 connected to the water storage container 5 ″.
By using 7, the water stored in the water storage container 5 ″ is used as washing water for toilets and the like in the building. With the above, the water is introduced into various use locations and used effectively.

Although the rainwater storage device of the present invention has the above-described structure, the detailed structure is not limited to the above. In addition, house 32 and building 3
The form of application to 4 and the like is not limited to the above, and a plurality of arrangements may be provided along the gutter 11. Further, when the opening 9 is clogged with foreign matter, the standing gutter 11 is closed.
The upper part of the outer cylinder 3 'is opened to prevent the house from being hindered by rainwater pools, and the prevention is made and the clogging is easily found, but the invention is not limited to this. Further, as described above, various configurations are possible in addition to the above-described respective illustrated embodiments and according to the gist of the present invention.

[0044]

According to the method and apparatus for storing rainwater of the present invention, after the rainwater that has fallen on the top surface of a building such as a house is effectively collected on the apparatus side through a vertical gutter and reaches a predetermined level. Can be drained to the drain side. Also, one or more water storage containers are provided at an arbitrary position away from the building, and the water can be smoothly and effectively stored in the water storage container and used for each purpose of use. The water storage level of the water storage container can be easily adjusted to a desired level as appropriate. Furthermore, the whole structure is simple and can be implemented relatively inexpensively. Furthermore, the rainwater storage section and the overflow take-out section can be of a separate type or a split type, and can be formed in a split type, so that the structure becomes easy to manufacture and easy to maintain. Can be. Further, since the cleaning port is formed, foreign matters and the like accumulated inside can be easily and reliably removed, and the flow of rainwater can be facilitated. Further, by providing a plurality of rainwater outlets in the apparatus main body, rainwater can be stored in a plurality of water storage containers. In addition, by connecting a large number of connection pipes or hoses to one water storage container, rainwater can be simultaneously used in various directions. Further, by changing the shapes and dimensions of the upper and lower ends of the apparatus main body, it is possible to connect to pipes of different dimensions. Further, by arranging a plurality of apparatus main bodies and the like along the vertical gutter, the present invention can be applied to various uses.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing the entire structure of a rainwater storage device of the present invention having a water storage container.

FIG. 2 is a sectional view showing an embodiment of a device main body of the rainwater storage device of the present invention.

FIG. 3 is a cross-sectional view showing another embodiment of the device main body of the rainwater storage device of the present invention.

FIG. 4 is a sectional view showing still another embodiment of the device main body of the rainwater storage device of the present invention.

5A and 5B are a cross-sectional view showing an embodiment of still another device main body of the rainwater storage device of the present invention and a top view taken along an arrow A in FIG. 5A (FIG. 5B).

FIG. 6 is a sectional view showing another embodiment of the device main body of the rainwater storage device of the present invention.

FIG. 7 is a perspective view showing an embodiment in which the outer cylinder of the apparatus main body according to the present invention is divided.

FIG. 8 is a schematic diagram showing an embodiment in which a water storage container of the rainwater storage device of the present invention is arranged at a high place or another water storage container is connected thereto.

FIG. 9 is a schematic diagram showing an embodiment in which the lower part of the water storage container of the rainwater storage device of the present invention is buried in the ground.

FIG. 10 is a schematic view showing an embodiment of the rainwater storage container of the present invention in which a plurality of connection pipes or hoses of the water storage container are connected to the plurality of rainwater outlets.

FIG. 11 is a perspective view showing a case where the rainwater storage device of the present invention is applied to a Japanese-style house.

FIG. 12 is a perspective view showing a case where the rainwater storage device of the present invention is applied to a two-story Western-style building.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rainwater storage device 2 Rainwater storage part 2 'Inner cylinder 2 "Inner cylinder 3 Overflow outlet 3' Outer cylinder 4 Rainwater outlet 4 'Rainwater outlet 4a Rainwater outlet 4b Rainwater outlet 4c Rainwater outlet 4d Rainwater outlet Reference Signs List 5 water storage container 5 'water storage container 5 "water storage container 5a water storage container 5a' water storage container 5b water storage container 5c water storage container 6 connecting pipe 6a connecting pipe 6a 'connecting pipe 6b connecting pipe 6c connecting pipe 7 water storage 8 taking out opening 9 opening 10 Part 11 standing gutter 12 taper part 13 eave gutter 14 ground 16 gap 17 support member 19 cleaning port 19a stopper 20 hollow support cylinder 21 support member 23 rainwater intake 25 level 26 rainwater 27 filter 28 half-arc surface 29 opening 32 house 33 Flowerbed 34 Building 38 Outer cylinder 39 Passage 40 Inner cylinder 41 Upper opening 42 Lower opening 43 Opening 44 Bottom 45 U-shaped tube 46 inverted U-shaped pipe 47 upper opening 48 opening 49 opening 50 connecting pipe or hose 51 opening / closing valve 52 gap 53 gap 100 main body 100a main body 100b main body

Claims (11)

[Claims] 1. A method for temporarily storing rainwater falling in a vertical gutter, establishing a water level with a rainwater outlet and introducing the temporarily stored water into a water storage container at an arbitrary position to obtain a desired level. A method of storing rainwater at a water level of, and when the stored water exceeds the level, overflowing from the temporarily stored water side, introducing the water to an underground drain port side, and maintaining the level. 2. A rainwater storage portion connected to the upright gutter for temporarily storing rainwater falling from the inside of the upright gutter, and an outlet which overflows when the water level in the rainwater storage portion reaches a predetermined level. An overflow discharge portion formed to be introduced into the rainwater storage portion, and a rainwater outlet installed below the rainwater storage portion for draining rainwater in the rainwater storage portion to the outside. A rainwater storage device formed to establish a water level between an outlet and the rainwater storage unit. 3. A tapered portion or a semi-arc surface which connects or approaches an upper end portion to a lower end of the upright gutter, extends toward the ground side along a hanging direction of the upright gutter, and has a diameter reduced toward the upper end portion. The overflow discharge portion comprising an inner cylinder formed and forming an opening for overflow at or near the top of the tapered portion or the semi-arc surface, an engagement portion between the inner cylinder and the upright gutter, and upper and lower portions thereof The rainwater storage unit, comprising: an outer cylinder disposed so as to be covered with an appropriate interval therebetween and a support member that is provided between the outer cylinder and the inner cylinder and forms a bottom of the outer cylinder. The rainwater storage device according to claim 2, further comprising the rainwater outlet provided above a position where the support member of the outer cylinder is provided. 4. A rainwater storage section having a cylindrical shape having an upper end connected to or close to a lower end of the upright gutter and having a bottom and an opening for overflow at the lower end, and The overflow overflow discharge portion having a cylindrical shape and having a drain port communicating with the discharge port side at the lower end side while being connected and arranged to share the opening portion, and is disposed near the bottom surface of the rainwater storage portion. The rainwater storage device according to claim 2, further comprising a rainwater outlet. 5. A U-shaped tubular rainwater storage portion having an upper end connected to or approaching a lower end of the upright gutter and having an opening formed at an upper end on the other side; An inverted U-shaped tubular overflowing drain portion communicating one end to the opening and communicating the other end to the drain port side, and a rainwater outlet disposed near a bottom surface of the rainwater storage portion. The rainwater storage device according to claim 2, wherein: 6. The rainwater storage device according to claim 2, wherein the rainwater storage portion and the overflow discharge portion are formed integrally or in a dividable manner. 7. A cleaning port for discharging dead leaves, dust and the like in the rainwater storage section is formed on a bottom side of the rainwater storage section. A rainwater storage device as described. 8. The rainwater storage device according to claim 2, further comprising a water head adjusting moving means for raising and lowering the rainwater storage device to change the overflow position of the rainwater storage device. Rainwater reservoir. 9. A rainwater storage portion connected to the upright gutter for temporarily storing rainwater falling from the inside of the upright gutter, and an outlet for overflowing when the water level in the rainwater storage portion reaches a predetermined level. A flood water discharge portion formed to be introduced into the rain water storage portion, a rain water outlet installed below the rain water storage portion for draining rain water in the rain water storage portion to the outside, and a rain water outlet. A water reservoir connected to the water reservoir, wherein the water reservoir is formed between the rainwater outlet and the rainwater storage unit so as to establish a water level and to store the water at the water level on the water reservoir side. apparatus. 10. The rainwater outlet according to claim 2, wherein a plurality of said rainwater outlets are formed, and a plurality of said water reservoirs or pipes (hoses) are connected to said rainwater outlet. A rainwater storage device as described. 11. The rainwater storage device according to claim 9, wherein one or more water storage containers are further connected to the water storage container.