JP2005351079A - Water storage device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water storage device capable of easily maintaining a water storage tank by washing/removing a deposit such as flowing-in soil and sand. <P>SOLUTION: In the water storage device 1, a laminate 2 having a laminated water retardation material 20 is arranged in the water storage tank A and the top face of the water storage tank A is closed by the laminate 2 and the water storage tank A can be utilized effectively. In such a water storage device 1, spaces 3 for a washing for washing/removing the deposits are formed to a lower section in the water storage tank A for the laminate 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a water storage device.

  Regulating ponds for storing rainwater and controlling rainwater outflow are provided in the site, school grounds, and parking lots. In the reservoir constructed as this adjustment pond, it is important to perform maintenance of the adjustment pond by removing sediments such as earth and sand and garbage flowing in along with rainwater.

In open-type ponds and concrete basins, heavy machinery can enter the pond and periodically carry out sediment, making maintenance easy. However, in the open type adjustment pond, the land with the adjustment pond cannot be used effectively. Moreover, in the concrete underground type | formula adjustment pond, since it is formed with concrete, construction becomes large and cost increases.

In view of this, a water storage tank of a type that embeds a water-absorbing material underground and stores rainwater is used because of its high water storage efficiency and simple construction.

However, in this type of water storage tank in which a water-absorbing material is buried, it is not easy to clean the inside of the water-storage tank because a heavy machine cannot be put in after the water-absorbing material is embedded. For this reason, it has been proposed to install a sand settling tank before rainwater flows into the water storage tank, or to provide a U-shaped groove in the lower part of the water-absorbing material and maintain this groove.

In the above-mentioned type of water storage tank that embeds water-absorbing material, if a sand settling tank is installed at a stage before rainwater flows into the water storage tank, land must be secured for installing the sand settling tank. In addition, it takes time for installation. In addition, when a U-shaped groove is provided in the lower part of the stagnant material and maintenance is performed on this groove, it takes time and effort to provide the U-shaped groove, and only soil and sand accumulated in the U-shaped groove can be cleaned and removed. There is a problem that it is not possible and it is inefficient.

  The present invention has been made to solve these problems, and in a water storage device using a laminate formed by laminating water-absorbing materials, the deposits such as inflowing earth and sand are washed and removed, and An object of the present invention is to provide a water storage device capable of facilitating maintenance.

  In order to achieve the above object, the present invention provides a water storage device in which a laminated body formed by laminating water-repellent materials is disposed in a water storage tank, and the upper surface of the water storage tank is closed with the laminated body so that it can be used effectively. A cleaning space for cleaning and removing deposits is provided in the lower part of the water storage tank of the laminate.

According to the present invention, sediment such as earth and sand accumulated in the cleaning space formed in the lower part of the laminate can be easily cleaned and removed.

The present invention is characterized in that the cleaning space provided in the lower part of the water tank is formed by supporting the laminated body with a support.

  According to the present invention, the cleaning space can be formed by the support.

As described above, the water storage device of the present invention is provided with a cleaning space for cleaning and removing deposits at the lower part of the laminate formed by laminating water-repellent materials. It is possible to easily wash and remove sediment such as earth and sand, and to facilitate maintenance of the water storage tank.

Moreover, since the said washing | cleaning space provided in the lower part in a water tank is formed by supporting a laminated body with a support body, the space for washing | cleaning can be easily formed with a support body. Therefore, the cleaning space can be easily provided.

Hereinafter, an embodiment of a water storage device 1 of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a pair of supports 4 of a water storage device 1 according to the present embodiment, FIG. 2 is a diagram showing an outline of the structure of the water storage device 1, and FIG. It is a disassembled perspective view shown.

  The water storage device 1 according to the present embodiment has a laminated body 2 formed by laminating the water-stagnation material 20 in the water tank A, and the upper surface of the water tank A is closed with the laminated body 2 so that it can be used effectively. A cleaning space 3 for cleaning and removing deposits is provided in the lower part of the water tank A of the laminate 2.

Here, although the water storage tank A assumes what formed the recessed part by excavating the ground, it is not restricted to this, For example, what inserted the pool shape | molded with the plastic in this recessed part may be used. May be surrounded by concrete.

The laminated body 2 is embedded in the basement to efficiently store rainwater, reinforces the embedded portion, removes a step from the surrounding ground surface, and effectively uses the ground surface. The laminated body 2 is formed by laminating the water-repellent material 20.

The water-absorbing material 20 is a structure having a large porosity and high water storage efficiency, and an example is shown in FIG. This example is a laminated structure published in Japanese Patent No. 2901959. The water-absorbing material 20 is a flat plastic molded body, and is formed into a corrugated shape in which a trapezoidal section 21 having a trapezoidal cross section and a valley section 22 formed between the peak sections 21 are alternately arranged. The part 21 and the valley-shaped part 22 are engaged with each other so that the plurality of water-absorbing materials 20 are stacked. A through hole 210 is mainly provided in the summit portion 21a of the mountain-shaped portion 21 for water conveyance, and is intended to obtain high water permeability. When laminating the water-absorbing material 20, the water-absorbing material 20 is stacked in such a way that the direction of the water-absorbing material 20 is different by 90 degrees for each step to ensure the coupling between the water-absorbing materials 20 and to create an efficient water storage space. It is designed to ensure. The water-absorbing material 20 is not limited to the laminated structure described above.

The cleaning space 3 is for cleaning and removing sediments such as earth and sand that have flowed into the water storage device 1, and is formed by supporting the laminate 2 by the support 4.

In the present embodiment, the support body 4 has a plurality of support columns 41 protruding from one surface of the substrate 40 at intervals, and the pair of support bodies 4 are arranged to face each other. A cleaning space 3 is formed.

The substrate 40 is a rigid flat plate made of a material such as plastic. A plurality of water permeable holes 400 are formed in the substrate 40 to ensure water permeability and allow rainwater and the like from above to pass therethrough.

The support column 41 is formed by projecting a plurality of prismatic bodies made of the same material as the substrate 40 on one surface of the substrate 40 at a predetermined interval. In addition, the shape of the support | pillar 41 is not restricted to the above-mentioned prism shape, For example, a column shape may be sufficient.

The pair of support bodies 4 configured as described above are disposed so as to face each other so that the front end surfaces 41a of the support columns 41 are in contact with each other, whereby a gap between the pair of substrates 40 separated by the support columns 41 is provided. A cleaning space 3 is formed (see FIGS. 1 and 2).

Note that the structure and shape of the support 4 are not limited as long as the support 4 can form the cleaning space 3. For example, the front end surfaces 41a of the support columns 41 of the pair of support bodies 4 may be combined so as to be in contact with each other substrate 40, or one support body 4 may have the front end surface 41a of the support column 41 at the bottom of the water storage tank A. You may arrange | position so that it may touch.

Next, the installation method of the water storage apparatus 1 of this Embodiment is demonstrated, referring FIG.

First, one support body 4 is arranged on the bottom of the water storage tank A that has been subjected to the water shielding treatment in a direction in which the support column 41 protrudes upward with the substrate 40 facing down.

Next, the other support body 4 is placed on the support body 4 so that the front end surfaces 41 a of the support columns 41 are in contact with each other, thereby forming the cleaning space 3.

Subsequently, the water storage device 1 is installed in the water storage tank A by laminating the water-absorbing material 20 on the substrate 40 of the other support body 4 and placing the laminated body 2 thereon.

Next, a method for cleaning and removing sediment such as earth and sand using the water storage device 1 will be described with reference to FIG.

A manhole B is provided on the side of the water tank A, and a cleaning device C (jet cleaning is performed by jetting a water flow toward the cleaning space 3 at a position corresponding to the cleaning space 3 of the water storage device 1 in the manhole B. Details are not shown).

The rainwater that has flowed in along with the earth and sand from the upper part of the water storage tank A flows downward, and the earth and sand accumulate in the lower cleaning space 3. After a certain amount of earth and sand has accumulated in the cleaning space 3, when a water flow is jetted from the cleaning device C, the accumulated earth and sand can be wiped out and removed from the drain outlet of the water tank A, etc. A can be maintained.

It is a perspective view which shows a pair of support body in embodiment of this invention. It is a figure which shows the outline of the structure of the water storage apparatus in embodiment of this invention. It is a disassembled perspective view which shows an example of the stagnant material in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water storage apparatus 2 Laminated body 20 Water stagnant material 3 Washing space 4 Support body 40 Substrate 41 Strut A Water reservoir

Claims (2)

In a water storage device in which a laminated body formed by laminating water-repellent materials is arranged in a water storage tank, and the upper surface of the water storage tank is closed with this laminated body so that it can be used effectively.
A water storage device, wherein a cleaning space for cleaning and removing deposits is provided in a lower part of the water storage tank of the laminate. The water storage device according to claim 1, wherein the cleaning space provided in the lower part of the water storage tank is formed by supporting the laminated body by a support.