JP2007002600A - Water storage tank and imitation stone, waterfall imitation stone and water quality maintenance system used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water storage tank capable of having nothing to worry about a water leak and ultraviolet ray deterioration, being safely utilized on an artificial base, preventing the muddiness of water to be stored and easily solving these problems without impairing beauty in terms of landscape gardening, an imitation stone used therefor, a waterfall imitation stone and a water quality maintenance system. <P>SOLUTION: The storage tank 1 comprises a waterproofing layer 4 having a rising edge 2 and a bottom surface 3 continued to the rising edge and a foam layer 5 formed on the lower surface and the outside of the waterproofing layer. As a preferred embodiment, a particle composed of an inorganic material such as a natural stone, glass and ceramic or the like is adhered to the surface of the waterproofing layer. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a water tank that can be suitably used for constructing watersides such as ponds and streams on an artificial base such as a rooftop, and a pseudo-stone, waterfall stone, and water quality maintenance system used therefor.

Conventionally, when constructing watersides such as ponds and creeks on an artificial base such as a rooftop, make a rising part (edge of the pond) by embankment and waterproof by placing a waterproof sheet on the recessed part, or install a resin molded pond The method to do is generally done. In recent years, there has been an increasing demand for landscaping on artificial bases such as rooftops and balconies, with the aim of reducing green spaces and mitigating the heat island phenomenon in urban areas. It has increased. (For example, see Patent Document 1)
JP 2005-60958 A

  However, since the conventional waterside construction method is premised on the use on the ground, there is a disadvantage in using it on an artificial base (hereinafter referred to as an artificial base) such as a rooftop.

For example, as shown in FIG. 5, when the water basin is formed on the artificial base 51 using the molding pond 52, the molding pond 52 is generally made of a resin, but is sufficiently molded with a sufficient thickness. There is almost no worry about leakage due to deterioration. However, since these are molded on the assumption that they are buried on the ground, generally the height of the edge is about 40 cm, and if you try to install it on the artificial base 51 where no hole is dug, the high edge will be unnatural. Protruding and detracting from aesthetics. Also, if the height of the edge is 40 cm, 400 kg / m ^{2 of} water will be collected when it rains. However, since the load resistance on the roof is generally about 180 to 300 kg / m ² , There is also danger.

  On the other hand, as shown in FIG. 6, when the waterside is formed on the artificial base 61 using the waterproof sheet 62, the generally used waterproof sheet 62 is made of a resin having a thickness of about 0.5 mm. There is a problem of damage caused by sharp objects, deterioration due to freezing in the winter and ultraviolet rays. In addition, it is difficult to lay a flat sheet in a three-dimensional depression, and there is an inconvenience that wrinkles and folding parts are inevitably generated, resulting in poor aesthetics. In order to prevent this, there is a case where the waterproof sheet protective layer 64 is configured by applying mortar on the surface of the waterproof sheet 62. However, in order to prevent cracks on the condition that the base is a flexible waterproof sheet 62, the thickness is about 30 to 50 mm. Since it is necessary to provide the waterproof sheet protective layer 64, the weight of the waterproof sheet protective layer 64 is limited to the roof of the building whose structure has been reinforced. Furthermore, there is an inconvenience that the cost is increased as a result of an increase in work on site.

  In addition, as a problem common to the above two creation methods, simply storing water generates bow flares or floating algae, so it is filled with a submersible pump, a filter medium or a purification material for circulating the stored water. There is a case where the bag is installed on the bottom of the water tank, but there is a disadvantage that these artifacts impair the beauty of the waterside. In addition, it is difficult to obtain an effective water flow even if water is circulated by installing a submersible pump, resulting in inconvenience that the water becomes cloudy.

  The object of the present invention is to solve the above-mentioned problems, there is no fear of water leakage or UV deterioration, it can be safely used on an artificial base, prevents turbidity of the stored water, and further impairs the beauty from the viewpoint of landscaping. It is intended to provide a water tank that can easily solve these problems, and a fake stone, waterfall stone, and water quality maintenance system used therefor.

  The water storage tank of the present invention is composed of a waterproof layer having a rising edge and a bottom surface continuous with the rising edge, and a foam material layer provided on the lower surface and the outer surface of the waterproof layer. It is what.

  Moreover, as a suitable example of the water storage tank of the present invention, particles made of an inorganic material such as natural stone, glass, ceramics may be fixed to the surface of the waterproof layer.

  The pseudo-stone of the present invention is a pseudo-stone used in the above-described water storage tank, and is characterized by having a stone pattern on the surface and a hollow structure or a structure filled with a foam material.

  The waterfall stone of the present invention is a waterfall stone used in the above-mentioned water storage tank, and the pseudo stone of claim 3 or a combination of a plurality of them is set at the rising edge of the water storage tank, A water source drawn from the water tank is connected, water is discharged from the water source, dropped into the water tank, and the water in the water tank is stirred.

  The water quality maintenance system of the present invention is a water quality maintenance system used for a water storage tank, in which particles made of an inorganic material, a filtering material and / or a purification material are accumulated on the bottom surface of the water storage tank, and the water storage tank absorbs water with a pump. The water is allowed to spring up from the bottom surface of the water storage tank, and the particles accumulated on the bottom surface are stirred in water.

  In the present invention, the water storage tank is constituted by a waterproof layer having a rising edge and a bottom surface continuous with the rising edge, and a foam material layer provided on the lower surface and the outer surface of the waterproof layer. Accordingly, a pseudo stone having a stone pattern on the surface and having a hollow structure or a structure filled with a foam material or a combination of a plurality of pseudo stones is set at the rising edge of the water tank, and the pseudo stone or pseudo stone. A water source drawn from the water tank is connected to the pair, water falls out from the water source and dropped into the water tank, and the water is stored in the water tank. A water quality maintenance system is constructed that accumulates particles made of purifying material, causes the water in the water tank that has been absorbed by the pump to rise from the bottom of the water tank, and stirs the accumulated particles in the bottom in the water. By using it together, there is no risk of water leakage or UV degradation, it can be safely used on an artificial base, prevents turbidity of the stored water, and does not impair the beauty from the viewpoint of landscaping, for example, easy creation of a rooftop biotope can do.

  FIG. 1 is a diagram showing a configuration of an example of a water storage tank according to the present invention. In the example shown in FIG. 1, the water storage tank 1 of the present invention is provided on a waterproof layer 4 having a rising edge 2 and a bottom surface 3 continuous with the rising edge 2, and on a lower surface and an outer surface of the waterproof layer 4. And a foam material layer 5. The example shown in FIG. 1 is a basic cross-sectional view of a water tank 1 having a flat bottom surface portion 3 and is used for expressing a pond. In the case of the water tank 1 having such a structure, the foam layer 5 not only protects the artificial base 6 but also has a waterproof layer even if there are convex portions such as fine steps 7 and pebbles 8 on the artificial base 6. Since the foam material layer 5 below 4 is appropriately crushed and absorbs the convex portion, the water storage tank 1 can be stably installed, and the convex portion does not damage the waterproof layer 4. In addition, since the foam material layer 5 also serves as a core material, even the thin waterproof layer 4 having a weak three-dimensional shape retention force can maintain a three-dimensional shape having the rising portion 2 (edge). It can be suitably used as a lightweight and durable water tank 1. Furthermore, the foam material layer 5 can also exhibit the effect as a heat insulating material.

  Here, the waterproof layer 4 refers to a layer made of a material having waterproof performance. For example, when the water tank 1 is used indoors where there is no fear of deterioration due to ultraviolet rays or freezing, urethane, polyethylene, or the like is preferably used. It can be used and the thickness of the layer should be about 1 mm. Even if it is indoors, when people enter the reservoir 1, when the water depth is deep and a large water pressure is applied, or when used under severe conditions such as outdoors exposed to ultraviolet rays, fiber reinforced resin (FRP) or It is preferable to use a strong material such as fiber reinforced cement (FRC), and the thicker the material, the safer it can be used, but 20 mm or less is preferable in consideration of the product weight and cost.

  Moreover, the foam material which comprises the foam material layer 5 refers to what foamed polystyrene, urethane, calcium carbonate, etc., and a material will not be ask | required especially if it is lightweight with specific gravity 1 or less. As long as the upper surface of the foam material has a shape along the shape of the lower surface of the waterproof layer 4 and is in close contact with each other, the waterproof layer 4 may or may not be bonded. Regarding the thickness of the foam layer 5, for example, when there are convex portions such as the step 7 of the joint 6 of the base 6 and the scattered pebbles 8, a minimum of 10 mm is necessary to absorb these convex portions and perform stable installation. Furthermore, when the water tank 1 is connected as shown in FIG. 2 and a waterside (waterfall) with a height difference is expressed, a thickness of about 1000 mm may be required, so the upper limit is set for the thickness. There is no.

  The height of the rising portion 2 (edge) needs to be at least 50 mm in order to store water, but if it is too high, it will store excessively, and the rising portion 2 may be caused by overload resistance of the artificial base 6 or a large water pressure. There is a risk of collapsing. In order to prevent this, the height of the edge of the water storage tank 1 according to the present invention is preferably set to an upper limit of 300 mm.

  FIG. 3 is a diagram showing a configuration of another example of the water storage tank according to the present invention. The example shown in FIG. 3 is a cross-sectional view of the water tank 1 having a step 11 on the bottom surface portion 3 and is used for expressing a river flow. It is common to enjoy setting up a pot with aquatic plants at the bottom of such a river, but if you design the bottom of the river obliquely to make a flow, they will be washed away to the lower side There is an inconvenience. Although there is a method of obtaining the flow only by the suction force of the pump by designing the riverbed flat, it is difficult to create an efficient flow because it imposes a heavy load on the pump and tries to express a river with a certain distance. However, if a bottom surface having a step 11 as shown in FIG. 3 is made, pots installed at the bottom of the river are difficult to move, and water flows naturally toward the lower step, so that an efficient flow can be made.

  In the example shown in FIG. 3, by fixing the inorganic grains 12 to the surface of the waterproof layer 4, a more natural waterside can be expressed, and the waterproof layer 4 is also protected from ultraviolet rays. Furthermore, the effect of promoting water purification by bacteria living in the gaps between the grains 12 can be exhibited. In particular, if the particles 12 such as a porous structure purification material or filter material are fixed, the contact area with the water can be maximized, and the water is automatically filtered by the flow of water on the surface. It will be a good usage.

  Moreover, in the example shown in FIG. 3, the pseudo stone 13 is a pseudo stone 13 having a hollow or dome-like structure. Since the interior is emptied and the surface has a stone pattern, the submersible pump 14, the water adjuster 15, the filter medium 16, etc. can be stored inside the pseudo stone 13 without impairing the beauty of the water. By covering the edge of the tank 1, the edge of the waterside similar to nature can be expressed. Moreover, when it is necessary to reinforce the pseudo stone 13 such as using it in a place where a person may get on like an edge, the lightweight property can be reduced by filling the pseudo stone 13 with the foam material 17. The pseudo stone 13 can be strengthened. In addition, the water sucked up by the submersible pump 14 accommodated in the pseudo stone 13 is returned to the water storage tank 1 through the water pipe 18 so that the water circulates. The water adjuster 15 accommodated in the pseudo stone 13 adjusts the amount of water stored by the water supplied from the water supply port 19.

  Further, in the example shown in FIG. 3, the pseudo stone 20 constitutes a pseudo stone set together with the pseudo stone 13 in the lower part thereof, and constitutes a casket stone 21. The water source drawn in from the water tank 1 through the water pipe 18 and the like is discharged as a waterfall from the upper part of the pseudo stone assembly or from the inside, and the water is stirred by flowing down into the water tank 1 to automatically dissolve dissolved oxygen in the water. The effect of maintaining a good water quality by increasing the concentration can be obtained. The higher the location of the water outlet that is the water source of the waterfall, the more effective, but considering the balance with the water tank 1 and the aesthetics, it is better about 300 mm to 500 mm, and at least about 100 mm to stir water efficiently It is preferable to drain off.

  As shown in FIG. 3, by setting the waterfall stone 21 and the pseudo stone 13 in the water storage tank 1, the water that has flowed down from the waterfall stone 21 agitates the water and maintains aerobicity, and the stone fixed to the bottom surface of the water storage tank 1. An efficient water quality maintenance system is established in which organic matter is decomposed by the bacteria that propagate in the grains, and the water filtered by the filter medium 16 stored in the pseudolite 13 is circulated to the waterfall stone 21 by the submersible pump 14.

  FIG. 4 is a diagram showing a configuration of still another example of the water storage tank according to the present invention. The example shown in FIG. 4 is a cross-sectional view of the water circulation system and is used for expressing a spring pond. In the example shown in FIG. 4, the water storage tank 1 has a bottom portion 3 having a hollow shape, and the water that has flowed upward from the central portion of the hollow is made up of particles 31 such as stones and filter media that accumulate in the hollow. It is a water quality maintenance system that passes through and is sucked into the submersible pump 32 and flows out from the center of the recess through the water pipe 33.

  The water storage tank, pseudo stone, waterfall stone, and water quality maintenance system of the present invention are suitable as a biotope unit that can easily create roof gardens, balcony greening, indoor greening, school greening, courtyards, courtyards, outdoor baths, etc. Can be used.

It is a figure which shows the structure of an example of the water tank which concerns on this invention. It is a figure which shows the structure of the other example of the water tank which concerns on this invention. It is a figure which shows the structure of the further another example of the water tank which concerns on this invention. It is a figure which shows the structure of the further another example of the water tank which concerns on this invention. It is a figure which shows the structure of an example of the conventional water tank. It is a figure which shows the structure of the other example of the conventional water tank.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water storage tank 2 Rising edge 3 Bottom part 4 Waterproof layer 5 Foam material layer 6 Artificial base 7 Step 8 Pebble 11 Step 12 Inorganic system grain 13, 20 Pseudo stone 14, 32 pump 15 Water dispenser 16 Filter material 17 Foam material 18, 33 Water pipe 19 Water supply port 21 Takiishi 22, 31 grains

Claims (5)

  A water storage tank comprising a waterproof layer having a rising edge and a bottom surface continuous with the rising edge, and a foam material layer provided on a lower surface and an outer surface of the waterproof layer.   The water tank according to claim 1, wherein particles made of an inorganic material such as natural stone, glass, ceramics, and the like are fixed to the surface of the waterproof layer.   A pseudo stone used in the water storage tank according to claim 1, wherein the pseudo stone has a stone pattern on a surface thereof and has a hollow structure or a structure filled with a foam material.   A takiishi used in the water storage tank according to claim 1 or 2, wherein the pseudo stone according to claim 3 or a combination of a plurality of them is set at a rising edge of the water storage tank, and water is stored in the pseudo stone or the pseudo stone set. A waterfall stone that is configured to connect a water source drawn from the tank, drain the water from the water source, drop it into the water tank, and stir the water in the water tank.   It is a water quality maintenance system used for the water storage tank of Claim 1 or 2, Comprising: The water storage tank which accumulate | stored the grain which consists of an inorganic material, a filter material, and / or a purification material in the bottom face part of the water storage tank, and absorbed water with the pump The water quality maintenance system is structured such that the water from the bottom of the water tank rises and the particles accumulated on the bottom are stirred in the water.

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