JPH11217855A - Rainwater storage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rainwater storage device combining a function as a leader or a chain gutter in combination, excellently harmonizing as a part of a building, requiring no special installation space and having superior appearance. SOLUTION: The rainwater storage device is constituted in such a manner that an oblong cylindrical water storage tank 1, into which rainwater from an eave gutter 6 is introduced and stored, is disposed in upright and fixed along a building exterior wall surface 2 and a drain pipeline 10b, by which excess rainwater in the cylindrical water storage tank is flowed down and drained from an upper opening section, is installed so that the opening section is placed near an upper end in the cylindrical water storage tank 1 while a cock 3 is mounted to the lower section of the side wall of the cylindrical water storage tank 1. The oblong cylindrical water storage tank 1 erected and fastened along the building exterior wall surface 2 excellently harmonizes as a part of a building, and no special installation space is required because the cylindrical water storage tank 1 can be set up at the place of a conventional leader. Since the excess section of rainwater introduced from the eave gutter is flowed down and drained through the drain pipeline, the rainwater storage device can also display as a function as the leader.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rainwater storage device which also serves as a hard gutter or a chain gutter.

[0002]

2. Description of the Related Art In recent years, in an urbanized area,
Rainwater that has fallen on houses, parking lots, roads, etc. flows directly into rivers, etc. through gutters, so during the rainy season a large amount of rainwater concentrates on rivers, and in a short time exceeds the capacity of rivers, so-called urban flooding frequently occurs. Is causing.

[0003] On the other hand, in the dry season, water in dams and lakes decreases, resulting in water shortages. In many areas, restrictions on tap water supply are implemented, but dams are newly installed to eliminate such water shortages. Building is becoming practically impossible due to the high construction costs and the lack of construction sites close to the city.

However, in order to create a livable environment and to prevent flooding of rivers, it has been proposed that rainwater not permeate the river during rainfall and permeate the land, or be temporarily stored. The rainwater temporarily stored is used for irrigation of trees, lawns, flowers and the like in parks, and is used for garden trees and potted plants in general households. It is also used for car washing. Since tap water is relatively cheap in Japan,
Tap water is also used for plant irrigation, etc., but more people are aware that they will use rainwater, which will lead to elimination of the aforementioned water shortage and suppression of urban floods.

[0005] Under such circumstances, a rainwater storage device as shown in FIG. 6 has recently been developed. This device has a faucet 10
1 is attached to the support 103
, And cover the lid 104, cut the hard gutter 105 along the outdoor wall of the house, connect the water separator 106,
The water separator 106 and the water storage container 102 are connected by a hose 107.

In the rainwater storage device having such a structure, rainwater falling on the roof of a house flows down from an eaves gutter (not shown) through a downspout 105, and a part of the rainwater is supplied to a hose 1 by a diverter 106 on the way.
07 and is stored in the water storage container 102. Therefore,
By turning the faucet 101 when necessary, rainwater can be taken out of the water storage container 102 and used effectively.

[0007]

However, the above-mentioned rainwater storage device is difficult to install along the outdoor wall of a house, and since the water storage container 102 is a bucket type, the device is conspicuous and harmonized as a part of a building. Since it cannot be maintained, there is a problem that it is rather uncomfortable and requires a large installation space.

When the amount of rainwater stored in the water storage container 102 decreases and becomes lighter, there is a concern that the water storage container 102 may fall down in a strong wind. , There is a concern that the water separator 106 and the hard gutter below it may fall off.

The present invention has been made in view of the above problems, and has as its object to provide a function as a hard gutter or a chain gutter and to be erected along an outdoor wall surface of a house or supported by a house. It is an object of the present invention to provide a rainwater storage device that does not require a special installation space because it can be erected well as a part of a building, and does not require a special installation space because it can be erected at a position such as a conventional gutter. .

[0010]

To achieve the above object, a rainwater storage device according to claim 1 of the present invention has a vertically long cylindrical water storage tank for introducing and storing rainwater from an eaves gutter on a wall surface outside a house. Along with being erected and fixed along the way, a drain pipe for draining excess rainwater in the cylindrical water tank from the upper opening and draining it is provided such that the opening is located near the upper end in the cylindrical water tank. A faucet is attached to the lower part of the side wall of the cylindrical water storage tank.

[0011] In the rainwater storage device having such a configuration, rainwater falling on the roof of the house is introduced into the cylindrical water storage tank from the eaves gutter and stored therein, and the water level of the rainwater in the cylindrical water storage tank is set to the upper opening of the drainage pipe. When the height is higher than the height, excess rainwater overflows and flows down the drainage pipe from the opening to be drained. And
By turning the faucet when necessary, such as when irrigating garden trees or potted plants, or when washing a car, rainwater stored in the cylindrical water storage tank can be taken out and used effectively.

This rainwater storage device has a function of not only introducing rainwater from the eaves gutter and storing it, but also draining excess rainwater in the cylindrical water storage tank, that is, a drainage function as a hard gutter. Yes, since the water tank itself is a vertically long cylindrical water tank like a large hard gutter, it stands well along the outside wall of the house and fits well as a part of the building. No special installation space is required and there is no fear of falling down, and it is not necessary to provide a hard gutter at the installation location of the device. Further, in this rainwater storage device, there is no need to cut off a hard gutter halfway and connect a water separator unlike the conventional device, so that the problem that the water separator or the like falls off is also solved.

Next, a rainwater storage device according to a second aspect of the present invention is characterized in that a vertically long cylindrical water storage tank for introducing and storing rainwater from an eaves gutter is erected and fixed along the outdoor wall surface of the house. A partition wall that rises from the bottom to the upper end is provided in the cylindrical water tank, and a drainage space is formed in the cylindrical water tank to drain excess rainwater from the cylindrical water tank through the upper opening and drain it. In addition, a drain port is formed at the bottom of the drainage space of the cylindrical water storage tank, and a faucet is attached to a lower part of a side wall of the cylindrical water storage tank.

In the rainwater storage device having such a configuration, when the water level of the rainwater introduced from the eaves gutter into the cylindrical water storage tank is higher than the upper opening of the drainage space, the excess rainwater overflows. The water flows down the drain space from the opening and is drained from the drain. Then, by turning the faucet when necessary, the rainwater stored in the cylindrical water storage tank can be taken out and used effectively.

[0015] As described above, this rainwater storage device also has a drainage function as a hard gutter, and if a vertically long cylindrical water storage tank is erected and fixed along the outdoor wall surface of a house, the rainwater storage device harmonizes well as a part of the building, and Since it can be installed at the location of conventional hard gutters, no special installation space is required, and there is no need to worry about falling over.There is no need to install gutters at the installation location of this device, and there is no problem with falling off of conventional diversion devices. Will be resolved.

A rainwater storage device according to a third aspect of the present invention is characterized in that a vertically long cylindrical water storage tank for introducing and storing rainwater from an eaves gutter is supported by a house and fixed upright, and a side wall of the cylindrical water storage tank is fixed. An outlet was formed near the upper end, and a drainage passage was formed on the outer surface of the cylindrical water storage tank to transmit and drain excess rainwater flowing out of it, and a faucet was attached to the lower part of the side wall of the cylindrical water storage tank. It is characterized by the following.

In the rainwater storage device having such a configuration, when the water level of the rainwater introduced from the eaves gutter into the cylindrical water storage tank and stored therein becomes higher than the outlet of the side wall of the cylindrical water storage tank, the water in the cylindrical water storage tank is removed. Excess rainwater flows out of the outlet, and flows down the drainage passage on the outer surface of the cylindrical water storage tank to be drained. Then, by turning the faucet when necessary, the rainwater stored in the cylindrical water storage tank can be taken out and used effectively.

As described above, this rainwater storage device has both a falling and draining function like a so-called "span gutter", and supports a vertically long cylindrical water storage tank from a house so as to form a part of the house. It can be erected and fixed in harmony with the equipment, so it has a good appearance.If it is erected and fixed at the position of the conventional gutter, no special installation space is required and there is no need to worry about falling down. Also, the problem of dropouts is eliminated.

Further, a rainwater storage device according to a fourth aspect of the present invention is the rainwater storage device according to the third aspect, wherein the drain passage is formed of a helical spiral formed on the outer surface of the cylindrical water storage tank. is there.

In such a rainwater storage device, the surplus rainwater flowing out of the outlet is drained while being spirally transmitted down the drainage passage formed of the ridge, so that the rainwater simply flows through the rain gutter. In comparison, it will be aesthetically pleasing as a landscape material or decoration device for buildings using rainwater.

According to a fifth aspect of the present invention, there is provided the rainwater storage device according to any one of the first to fourth aspects, wherein an inlet water pipe penetrating vertically through the cylindrical water storage tank is provided, and the bottom of the cylindrical water storage tank is provided. Bend the lower end of the water pipe projecting downward from above,
It is connected to a water inlet formed at the bottom of the cylindrical water storage tank, and a filter is attached to the water inlet.

In such a rainwater storage device, rainwater flows down from the eaves gutter through the water inlet pipe, flows into the tank from the water inlet at the bottom of the cylindrical water storage tank, and is stored. A filter is attached to the water inlet. Therefore, solids such as leaves, garbage, earth and sand contained in the rainwater are prevented from flowing into the cylindrical water storage tank together with the rainwater, and the solids are collected at the lower end of the water inlet pipe, and only clean rainwater is collected. Can be stored.

According to a sixth aspect of the present invention, there is provided the rainwater storage device according to any one of the first to fifth aspects, wherein the outer surface of the cylindrical water storage tank is decorated.

In such a rainwater storage device, the aesthetic appearance is improved by the decoration provided on the outer surface of the cylindrical water storage tank. In particular, if the decoration is in harmony with the house, the sense of unity with the house is enhanced. And the appearance is further improved.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a side view of a rainwater storage device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the device, and FIG. 3 is an enlarged view of a portion surrounded by a circle in FIG.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a cylindrical vertically long cylindrical water storage tank, and this cylindrical water storage tank 1 is composed of a water storage tank main body 11, a bottom member 12, and a lid member 13. .

The water tank main body 11 is made of a round pipe extruded from a synthetic resin such as hard polyvinyl chloride.
The outer peripheral surface is decorated with a tile pattern or the like that matches well with the house outdoor wall 2. And this water tank main body 11
A faucet 3 is attached to a lower part of the side wall of the water heater.

The above decoration is performed by using a pattern printing film in which a tile pattern or the like is printed on one side of a weather-resistant resin film such as an acrylic resin film, and wrapping the film so that the printing surface is on the back side. It is formed by sticking to the outer peripheral surface of the pipe. Such decoration can maintain the beauty over a long period of time because the pattern printing film is hardly deteriorated and the printed surface is not damaged.

As the round pipe constituting the water tank main body 11, a pipe having a pipe diameter of about 150 to 300 mm is preferably used. If a thin pipe with a pipe diameter of less than 150 mm is used, the water storage capacity is too small, and there is a concern that the amount of water will be insufficient when used for irrigation, etc. Conversely, if a thick pipe with a pipe diameter of more than 300 mm is used, the device will be Becomes too large and noticeable. The thickness of the round pipe is sufficient if it is about 2 to 10 mm, and the length of the round pipe may be a length that fits between the bottom member 12 and the call gutter 4.

As shown in FIG. 2, the bottom member 12 of the cylindrical water storage tank 1 has a circular bottom plate portion 12a, an annular leg portion 12b, and an insertion ring portion 12c, and the bottom member 12 is also made of hard polyvinyl chloride. And the like. The diameter (outer diameter) of the insertion ring portion 12c is the same as the inner diameter of the round pipe of the water storage tank main body 11, and this insertion ring portion 12c is inserted into the lower end opening of the water storage tank main body 11 (adhesive with an adhesive if necessary). Therefore, the water tank main body 11 and the bottom member 12 are vertically connected and integrated. As shown in FIG. 3, a groove 12d for packing is formed at the base of the insertion ring 12c, and the watertight tank body 12e is fitted by the waterproof packing 12e fitted to the groove 12d. Water is prevented from leaking from a connection portion between the bottom member 11 and the bottom member 12.

As shown in FIG. 1, a decoration such as a brick pattern is provided on the outer peripheral surface of the annular leg portion 12b of the bottom member 12, and this decoration is also provided on one side similarly to the decoration of the water tank body 11. It is formed by sticking an acrylic resin film or the like on which a brick pattern or the like is printed so that the printed surface is on the back side.

The decoration formed on the outer peripheral surface of the annular leg portion 12b and the outer peripheral surface of the water tank main body 11 may be limited to the above-mentioned brick pattern or tile pattern decoration as long as it is in harmony with the house. In addition, various means other than sticking of the pattern printing film can be adopted as the means for applying the decoration.

The lid member 13 attached to the upper end opening of the water tank main body 11 is a circular lid formed of a synthetic resin such as polyvinyl chloride similar to the water tank main body 11 and the bottom member 12. 13 is formed with a hole through which the connecting vertical pipe 4a at the rear of the call gutter 4 is inserted.

The vertically long cylindrical water storage tank 1 composed of the water storage tank main body 11, the bottom member 12, and the lid member 13 is erected along the outdoor wall surface 2 of the house as shown in FIG. Is fixed to the outdoor wall 2 of the house. In this embodiment,
As a fixing means, three chains 5 each having a stopper 5a attached to both ends are used, and each chain 5 is wound around the upper, middle and lower portions of the cylindrical water storage tank 1, and the stoppers 5a at both ends of the chain are attached to the outdoor wall 2 of the house. To fix the tubular water storage tank 1 to the house outdoor wall surface 2,
The tubular water storage tank 1 may be fixed to the house outdoor wall surface 2 by using a suitable fitting other than a chain.

As shown in FIG. 1, a tip end of the call gutter 4 is connected to a water collector 7 attached to the eaves gutter 6, and a connecting vertical pipe 4 a at the rear of the call gutter 4 is connected to the cylindrical water tank 1. And is inserted into the water storage tank through the cover member 13 of FIG. Then, as shown in FIG. 2, the upper end of a transparent tube 8a made of a soft synthetic resin such as soft polyvinyl chloride is connected to the connecting vertical tube 4a of the call gutter 4, and the lower end of the tube 8a is connected to a bottom plate. Part 12
a is connected to an opening 12f formed in a. Further, an upper end of a transparent short tube 8b made of the same soft synthetic resin is connected to the opening 12f, and penetrates the cylindrical water storage tank 1 up and down by the above-mentioned call gutter 4, tube 8a and tube 8b. An intake channel is formed. The lower end of the water inlet pipe, that is, the tube 8b is bent upward in a U-shape, and is connected to a filter 9 detachably attached to the water inlet 12g of the bottom plate 12a.

The drain port 1 formed in the bottom plate 12a
At 2h, the lower end of a drain pipe 10a made of a synthetic resin such as hard polyvinyl chloride is connected and rises, and the upper opening of the pipe 10a is located near the upper end in the cylindrical water storage tank 1. A drain pipe 10b, an elbow 10c, a drain pipe 10d, and the like are sequentially connected to a lower side of the drain port 12h, and these drain pipes and the like and the drain pipe 1 are connected.
Oa forms a drain pipe for draining excess rainwater in the cylindrical water storage tank 1 by flowing it down from the upper opening.
A rainwater basin 10e is buried in the middle of the drainage pipe as shown in FIG.

According to the rainwater storage device having the above-described configuration, the rainwater falling on the roof flows down from the collector 7 of the eaves gutter 6 through the nodal gutter 4 and the tubes 8a and 8b constituting the water inlet pipe.
The water flows into the water tank main body 11 from the water inlet 12 g via the filter 9. At this time, since the rainwater is filtered by the filter 9 and solids such as leaves, trash, earth and sand contained in the rainwater do not enter the water tank main body 11, only clean rainwater is stored in the water tank main body 11. become. Since the solids accumulate in the tube 8b, it is preferable to remove the tube 8b periodically to remove the solids in the tube 8b. In that case, if the tube 8b is transparent,
There is an advantage that the degree of accumulation of solid matter inside can be seen through. If a water shutoff valve (not shown) that can be opened and closed is installed between the filter 9 and the water inlet 12g, the valve is closed when solids accumulate in the tube 8b and the water in the water tank main body 11 is closed. The inside of the tube 8b can be cleaned without discharging rainwater.

The rainwater stored in the water tank main body 11 as described above is turned on by turning the faucet 3 when necessary, such as when water is given to garden trees or potted plants, or when a car is washed. It can be taken out from 11 and used effectively.

Then, the water level W of the rainwater in the water tank main body 11 is determined.
When L becomes higher than the upper opening of the drain pipe 10a constituting the drain pipe, surplus rainwater overflows and flows down the drain pipes 10a and 10b from the opening.
The water is drained to a gutter or the like via a drain pipe 10d, a rainwater basin 10e, and the like.

This rainwater storage device has a function of not only introducing rainwater from the eaves gutter 6 and storing it, but also discharging excess rainwater, that is, a drainage function as a hard gutter. Since the tank itself is a vertically long cylindrical water storage tank 1 such as a large hard gutter, the cylindrical water storage tank 1 is erected along the outdoor wall surface 2 of the house, and a chain 5 having stoppers 5a attached to both ends. In this manner, the tubular water storage tank 1 is well-harmonized as a part of the building and does not cause a sense of incongruity. Therefore, the rainwater storage device has a good appearance and can be installed at the position of the conventional hard gutter, so that no special installation space is required, and it is not necessary to provide a hard gutter at the installation location of the device. In addition, a decoration in which the exterior of the cylindrical water storage tank 1 is well-coordinated with a house such as a tile pattern or a brick pattern has a better appearance, and the sense of unity with the building is further improved. Further, since this apparatus does not need to cut the hard gutter halfway and connect a water separator unlike the conventional apparatus, the problem that the water separator or the like falls off is also solved.

In the rainwater storage device of the above embodiment, the cylindrical water storage tank 1 is formed in a cylindrical shape, but may be formed in a semi-cylindrical shape or in a rectangular cylindrical shape. Also, instead of the transparent soft tubes 8a and 8b, a water inlet pipe may be formed by using a hard synthetic resin pipe or the like. In some cases, the rainwater is stored from the drainage gutter 4 without using the tubes 8a and 8b. It may be configured so as to be directly introduced into the tank body 11, and the water inlet pipe may be omitted.

FIG. 4 is a sectional view of a rainwater storage device according to another embodiment of the present invention.

In this rainwater storage device, two partition walls 11a and 11b are provided inside the water tank main body 11 of the cylindrical water tank 1. The one partition wall 11a is provided so as to reach the bottom plate portion 12a from the upper end of the water tank main body 11, and a space between the partition wall 11a and the side wall of the water tank main body 11 is a water inlet passage portion 11c. Then, the connecting vertical pipe 4a at the rear of the call gutter 4 penetrates through the lid 13 of the cylindrical water storage tank 1 and the water inlet passage 1
1c. An opening is formed in the lower part of the partition wall 11a, and a filter 9 is attached to the lower wall. A bottom plate 12a below the water inlet passage 11c has an outlet for solid matter accumulated at the bottom of the water inlet passage 11c. 12i is formed and closed by the plug 12j.

The other partition wall 11b is provided so as to rise from the bottom plate portion 12a to near the upper end of the water tank main body 11, and between the partition wall 11b and the side wall of the water tank main body 11, excess rainwater flows upward. It is a drainage space 11d that flows down from the opening and drains. A drain port 12h is formed in the bottom plate portion 12a below the drain space 11d, and a drain pipe 10b, an elbow 10c, a drain pipe 10d, and the like are sequentially connected to the drain port 12h.

Since other structures are substantially the same as those of the rainwater storage device of the above-described embodiment, the same reference numerals are given to the same members in FIG. 4, and the description will be omitted.

In the rainwater storage device having the above configuration, the rainwater flows down from the eaves gutter through the inlet gutter 4 into the water inlet passage 11c in the water tank main body 11, and is filtered by the filter 9 to remove only the clean rainwater. Flows into the water tank main body 11 and is stored therein, and solids such as leaves and dust contained in rainwater accumulate at the bottom of the water inlet passage 11c. Therefore, it is preferable to remove the plug 12j periodically to remove solid matter from the outlet 12i.

Then, by turning the faucet 3 when necessary, the rainwater stored in the water tank main body 11 can be taken out and used effectively. In addition, the water level WL in the water tank main body 11
Is higher than the upper opening of the drainage space 11d, excess rainwater overflows the upper end of the partition wall 11b,
The drainage space 11d flows down from the upper opening, and the drainage port 1
From 2h, water is drained through a drain pipe 10b, an elbow 10c, and a drain pipe 10c.

As described above, this rainwater storage device also has a drainage function as a hard gutter, and when the vertically long cylindrical water storage tank 1 is erected and fixed along the outdoor wall surface 2 of the house, the cylindrical water storage tank is provided. 1 harmonizes well as part of the building and does not cause discomfort. Therefore, this rainwater storage device also has a good appearance,
Since it can be installed at the position of the conventional hard gutter, no special installation space is required, and it is not necessary to provide a hard gutter at the installation location of the device, and the problem of falling off of the conventional diversion device or the like is solved.

FIG. 5 is a sectional view of a rainwater storage device according to still another embodiment of the present invention.

This rainwater storage device includes drainage pipes 10a, 10a constituting the above-mentioned drainage pipe inside cylindrical water storage tank 1.
Instead of providing b, etc., the water tank main body 11 of the cylindrical water tank 1
An outlet 11e is formed near the upper end of the side wall of the drainage passage, and a drain passage 11f through which excess rainwater flowing out from the outlet 11e is transmitted and drained.
The ridge is spirally formed on the outer surface of the cylindrical water storage tank 1.

Such a rainwater storage device includes a cylindrical water storage tank 1.
Is supported by the house and is erected and fixed at the position of a conventional chain gutter, and a water inlet pipe 40 hanging from the water collector is inserted into the water storage tank main body 11 through the lid member 13, and is inserted into the water inlet pipe 40. The tube 8a is connected. As means for supporting the tubular water storage tank 1 from a house, for example, means for supporting the cylindrical water storage tank 1 from a rafter such as an eave using a plurality of metal support arms or the like is employed.

Other structures are substantially the same as those of the rainwater storage device of the embodiment shown in FIGS. 1 to 3, and therefore, in FIG. 5, the same members are denoted by the same reference numerals and description thereof will be omitted.

In the rainwater storage device having such a configuration, the rainwater flows down the water inlet pipe 40 and the tubes 8a and 8b from the eaves gutter, is filtered by the filter 9, and only the clean rainwater flows from the water inlet 12g into the water storage tank. The solids flowing into the main body 11 and contained in the rainwater are stored in the tube 8b. Then, when the water level WL of the rainwater in the water tank main body 11 becomes higher than the outlet 11e, excess rainwater flows out from the outlet 11e, and drops along the drain passage 11f formed of a spiral ridge to be drained. . Then, by turning the faucet 3 when necessary, the rainwater stored in the water tank main body 11 can be taken out and used effectively.

As described above, this rainwater storage device has both a falling and draining function like a so-called “span gutter”, and supports the vertically long cylindrical water storage tank 1 from a house, like a part of a building. Because it can be erected and fixed in harmony with the house, it has a good appearance, and if it is erected and fixed at the position of the conventional gutter, there is no need for special installation space and there is no worry about falling down,
The problem of falling off of a conventional water separator or the like is also solved. Also,
When excess rainwater is drained and drained along the drainage passage 11f formed by the spiral ridge, no trace of the rainwater is left on the outer surface of the cylindrical water storage tank 1 other than the drainage passage. The outer surface of the cylindrical water storage tank 1 can be kept beautiful.

[0056]

As is clear from the above description, the rainwater storage device of the present invention can only collect rainwater by introducing rainwater from an eaves gutter and turning it off when necessary to effectively use the rainwater. In addition, since surplus rainwater can be drained, it also has a function as a hard gutter or a chain gutter. Moreover, since the water storage tank is a vertically long cylindrical water storage tank like a large gutter, if the water storage tank is erected and fixed along the outside wall of the house or supported by the house, the cylindrical cistern will Partly harmonized, there is no discomfort and there is no fear of falling. Therefore, the rainwater storage device of the present invention has a good appearance and can be erected at the position of the conventional gutters and chain gutters, so that no special installation space is required. Become. In addition, since rainwater is not introduced from the water separator in the middle of the deep gutter unlike the conventional device, the problem of falling off of the water separator and the like can be solved.

[Brief description of the drawings]

FIG. 1 is a side view of a rainwater storage device according to an embodiment of the present invention.

FIG. 2 is a sectional view of the device.

FIG. 3 is an enlarged view of a portion surrounded by a circle in FIG. 2;

FIG. 4 is a sectional view of a rainwater storage device according to another embodiment of the present invention.

FIG. 5 is a sectional view of a rainwater storage device according to still another embodiment of the present invention.

FIG. 6 is a side view of a conventional rainwater storage device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical water storage tank 11 Water storage tank main body 12 Bottom member 13 Lid material 12g Water inlet 12h Drainage outlet 2 House exterior wall surface 3 Faucet 4 Call gutter 5 Chain 6 house gutter 7 Water collector 8a, 8b Tube which constitutes a water inlet line 9 Filters 10a, 10b Drain pipes constituting drain pipes 11a, 11b Partition wall 11c Water inlet passage 11d Drainage space 11e Outlet 11f Groove-shaped drain passage 40 Water inlet WL Water level

Claims (6)

[Claims] 1. A vertically long cylindrical water storage tank for introducing and storing rainwater from an eaves gutter is erected and fixed along an outdoor wall surface of a house, and excess rainwater in the cylindrical water storage tank flows down from an upper opening. A drain pipe for draining the water in such a manner that the opening is located near an upper end in the cylindrical water storage tank, and a faucet is attached to a lower part of a side wall of the cylindrical water storage tank. 2. A vertically long cylindrical water storage tank for introducing and storing rainwater from an eaves gutter is erected along the outdoor wall surface of the house, and a partition wall rising from the bottom of the cylindrical water storage tank to near the upper end thereof is provided. A drainage space is provided in the cylindrical water storage tank, and a drainage space for draining excess rainwater in the cylindrical water storage tank from the upper opening and draining the water is formed in the cylindrical water storage tank, and the drainage space of the cylindrical water storage tank is formed. A drainage port is formed at the bottom of the part, and a faucet is attached to the lower part of the side wall of the cylindrical water storage tank. 3. A vertically long cylindrical water storage tank for introducing and storing rainwater from an eaves gutter is supported from a house and is erected and fixed, and an outlet is formed near an upper end of a side wall of the cylindrical water storage tank. A drainage passage for transmitting excess rainwater flowing out of the tank and discharging the rainwater from the outside of the cylindrical water storage tank, and a faucet is attached to a lower part of a side wall of the cylindrical water storage tank. 4. The rainwater storage device according to claim 3, wherein the drainage passage is formed of a ridge formed spirally on an outer surface of the cylindrical water storage tank. 5. An inlet water pipe extending vertically through a cylindrical water storage tank,
The lower end of the water inlet pipe projecting downward from the bottom of the cylindrical water storage tank is bent upward, connected to the water inlet formed at the bottom of the cylindrical water storage tank, and a filter is attached to the water inlet. The rainwater storage device according to any one of claims 1 to 4, wherein: 6. The rainwater storage device according to claim 1, wherein decoration is applied to an outer surface of the cylindrical water storage tank.