JPH03161620A - Rainwater storage device - Google Patents

Abstract

PURPOSE:To attain the prevention of a flood, and to utilize rainwater effectively by installing a water storage tank into the platform of a station and collecting and storing rain water pouring on the roof of the platform, the track of a railway, etc. CONSTITUTION:A water storage tank 3 is mounted into the platform 2 of a station, and rainwater pouring on the roof 4 of the platform 2 is collected, and introduced and stored to the water storage tank 3 by a water pipe 5. Rainwater pouring on the track 1 of a railway is collected to a collecting channel 7, pumped up by a pump 8, and introduced and stored to the water storage tank 3 through a collecting pipe 6 and a tank filter 3.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is intended for use as gray water (water that is not suitable for drinking as it is, but is clean enough to be used for flushing toilets, cleaning roads, etc.). The present invention relates to a device for storing usable rainwater, and in particular, it is capable of storing a large amount of rainwater by utilizing a space that has rarely been utilized in the past.

[Prior Art] In recent years, it has been proposed to install large-capacity water storage tanks underground in public facilities and parks for the purpose of preventing flooding during heavy rains and securing drinking water during disasters.

[Problem to be solved by the invention] However, especially in urban areas, there is almost no surplus land, so there is no room for installing new equipment such as water tanks, and it is difficult to install new equipment such as water tanks underground. However, in recent years, underground use (for various types of piping, underground malls, etc.) has progressed, and there is little extra space underground, making it difficult to construct large-capacity water storage tanks.

Therefore, the present invention has been made with attention to such problems, and an object thereof is to provide a rainwater storage device that can store a large amount of rainwater by utilizing a space that has been hardly utilized in the past. The purpose is

[Means to solve the problem]

In order to achieve the above object, the rainwater storage device according to the invention described in claim (1) is provided with a water storage 11 inside a plant platform at a station.

Further, the invention as claimed in claim (2) is the invention as stated in claim (1) above, in which a water conveying means is provided to send 7 tons of rainwater that fell on the roof of the Burasoto home to the water tank.

Furthermore, the invention described in claim (3) is based on the above-mentioned claim (1).
Alternatively, in the invention described in (2), a water collection means is provided to collect rainwater that has fallen on the railway track into a water tank.

[Function] In the rainwater storage device described in claim (1), since the water tank is provided inside the plant platform, there is no need to secure a dedicated space for the water tank.

Further, in the invention described in claim (2), the water supply means sends rainwater that has fallen on the roof of the plant home to a water storage tank provided inside the plant home, so that the rainwater is stored. Since the roof of the plant home is naturally located above the plant home, all you need to do is collect rainwater with a gutter and send it to the water tank. In other words, no power is required to convey water from the roof to the water tank. .

In the invention as set forth in claim (3), the water collection means collects rainwater that has fallen onto the railway track into a water storage tank provided inside the platform, so that the rainwater is stored.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

1 to 3 are diagrams showing an embodiment of the present invention, in which the present invention is applied to an elevated track.

First, to explain the configuration, in Fig. 1, the elevated track l
The platform 2 of the station installed above has a water tank 3 therein, and above it there are a plurality of supports 4a.
The roof 4, supported by

A water pipe 5 serving as a water supply means for transmitting rainwater that has fallen on the roof 4 to the water tank 3 is supported by an arbitrary support 4a.

Furthermore, a water collection pipe 6 is supported at the end of the plant platform 1, and as shown in FIG. Located within. Furthermore, a pump 8 is inserted in the middle of the water collection pipe 6 to pump up rainwater collected in the water collection groove 7 to the water storage tank 3.

Here, the water collection pipe 6, the water collection groove 7, and the pump 8 constitute a water collection means.

The water collection groove 7 is composed of a side groove (not shown) that is long in the direction along the railway track (left-right direction in FIG. 1), and a horizontal groove 7a that passes through the side groove and in which the lower end of the water collection pipe 6 is located. ing.

The elevated track 1 is provided with a drain pipe 10 for draining rainwater that has fallen onto the elevated track 1 into a side gutter (not shown) provided on the ground 9.

However, as shown in FIG. 3, the drain port 10a formed at the upper end of the drain pipe 10 is slightly (several c
m) Opens at a high position.

Therefore, the rainwater that falls on the raceway surface 1a first flows through the water collection groove 7.
As will be explained later, rainwater flows into the storage tank 3 and is collected in the storage tank 3, but rainwater that overflows from the water collection ditch 7 during torrential rain etc. is drained to the side ditch 9 on the ground through the drain pipe 1o.

Returning to FIG. 2, a filter tank 11 that communicates with the water storage tank 3 and filters rainwater is provided in the platform l, and the rainwater collected through the water supply pipe 5 and the water collection pipe 6 is
After being treated in this filter tank 1l, it is stored in the water storage tank 3.

That is, the filtration tank l1 includes a water collection chamber 11a through which the water supply pipe 5 and the water collection pipe 6 pass, and a filtration chamber 1lb arranged above the water collection chamber 11a and containing a filter material 11c such as fine stones. The lower surface of the filtration chamber 1lb communicates with the water collection chamber 11a through micropores large enough to store the filtration medium 11c, and the upper side of the filtration chamber 1lb communicates with the water storage tank 3.

Next, the operation of this embodiment will be explained.

That is, rainwater that has fallen on the roof 4 travels along the upper surface of the roof 4 (or a gutter or the like provided as appropriate on the roof 4) and collects at the upper end of the water pipe 5, and from there, the water is collected in the filtration tank 11 through the water pipe 5. It is sent into the chamber 11a.

On the other hand, the rainwater that has fallen on the raceway surface 1a flows into the water collection groove 7, is pumped up from there by the bomb 8, and is sent through the water collection pipe 6 into the water collection chamber Ila of the filtration tank 11.

And ill till! If the amount of water collected in the 11 water collection chamber lla exceeds a predetermined amount, the mountain water will be transferred to the filtration chamber 1lb.
Inside LJ. #After being filtered by the filter material 11c, it flows into the water storage tank 3.

This mucus, gray water is stored in the water tank 3, and the gray water ζ
For example, water for flushing toilets at stations and medical facilities around stations.
f It can be used as river sweep water or fire prevention water, and if a sterilizer or the like is installed on the outlet (not shown) side of the water tank 3, it can also be used as emergency drinking water in times of disaster. It is possible.

Furthermore, since the water storage basin 3 acts as a rainwater drain, it also has the effect of preventing flooding.

In the case of torrential rain, etc., the rainwater that cannot be pumped up by the pump 8 leaks onto the raceway surface la, but the spilled water is drained into the gutter on the ground 9 by the drain pipe IO. , water intrusion inside the station premises will be prevented.

In this way, in this embodiment, various effects can be obtained, and since the water tank 3 is provided inside the platform 2, there is no need to specially secure space for installing the water tank 3, and it can be used in urban areas. This can be achieved relatively easily even in densely populated areas such as

Further, since rainwater falling on the roof 4 is sent into the water tank 3 by natural flow, there is no need to provide a pump or the like.

In the above embodiment, a case where the present invention is applied to an elevated track 1 has been described, but the present invention can be implemented even in an above-ground track or an underground track with substantially the same configuration as the above embodiment.

(Effects of the Invention) As explained above, according to the present invention, since the water tank is provided inside the platform, which has been hardly used in the past, there is no need to secure a special space for the water tank. This has the effect of being relatively easy to implement even in densely populated areas such as Tokyo.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention, FIG. 2 is an enlarged view of essential parts of this embodiment, and FIG. 3 is a front view of the upper end of a drain pipe.

Claims (3)

[Claims] (1) A rainwater storage device characterized by having a water tank installed inside a station platform. (2) The rainwater storage device according to claim (1), further comprising a water supply means for sending rainwater falling on the roof of the platform to a water storage tank. (3) The rainwater storage device according to any one of claims (1) and (2), further comprising a water collection means for collecting rainwater that has fallen onto railway tracks into a water storage tank.