JP2003020696A - Water storage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store rainwater fallen on a dwelling house. SOLUTION: A water storage tank 3 provided under the dwelling house 100 is provided with a structure 5, and a water shielding sheet 97 covering the structure 5. The structure 5 comprises a plurality of main bodies 7, joints 80 to vertically connect the main bodies 7 to each other, and corner joins to horizontally connect the main bodies 7 to each other. The main body 7 is formed of polypropylene, and provided with a base plate 9 and legs 21 extended from one side of the base plate 9. The main body 7 is disposed with tips of the legs 21 directed in the same direction. The joints 48 are formed like plates, and each is provided between the other side of the base plate 9 of the main body and the tip 27 of the leg.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water storage device for storing rainwater.

[0002]

2. Description of the Related Art Generally, in normal times when rain is average, rainwater flows through a gutter such as a road and flows into a waterway or a river. However, once heavy rain falls in an area where the population, housing, etc. have become denser with the development of society,
Most of the rainwater does not penetrate into the ground and flows into waterways and rivers.

In such a case, water flowing into the waterway or river may overflow from the waterway or river. For this reason, it is necessary to give sufficient consideration in advance to the waterways and rivers that flow through the urban areas. Also, if rainwater is considered as one of the resources, it is a loss to drain the rainwater that has fallen into the downstream without using it beneficially.

[0004]

Therefore, it is conceivable to provide facilities for storing rainwater at various places. However, it is difficult to secure a place to install the facility in a congested area. Further, when a facility for storing rainwater is provided, temporary frame work for pouring concrete and other incidental work are required, which requires a large amount of work and requires a long time. In addition, since construction requires skill, sufficient consideration must be given to construction, and careful planning and examination are required.

An object of the present invention is to be able to store rainwater.

[0006]

In order to solve the above-mentioned problems, the present invention is characterized by comprising a water tank, which is provided below a structure. By doing so, the rain that falls on the structure, the rain that surrounds the structure, or the rain that falls on another place is stored in the water storage device provided under the structure. Therefore, the rainwater that has fallen on or around the structure, or elsewhere, flows through the sewers and gutters all at once to the waterways and rivers and does not overflow. The water stored in the water storage device is
It can be used for emergency water such as earthquakes and fire extinguishing. Further, it can be used as a heat source for air conditioning.

Further, the water tank comprises a structure and a water blocking member covering the structure. The structure is formed by three-dimensionally connecting a plurality of structural members. Legs extending from one side of the base are provided, and the structure may have a space formed therein by the legs. By doing so, the structural members are three-dimensionally connected. At this time, the legs of the structural member form a space inside the structure. Since the structure is covered with the water-impervious member, water can be stored in the space formed by the legs.

Further, the water storage tank comprises a structure and a water-blocking member covering the structure, and the structure comprises a plurality of structural members.
A joint member that connects these structural members to each other in one direction and another joint member that connects the structural members to each other in a direction orthogonal to the one direction, and the structural member extends from one side of the base and the base. The leg is provided, and the structure may have a space formed therein by the leg of the structural member. In this way, the structural member is made up of the joint member and another joint member.
Dimensionally connected. At this time, the legs of the structural member form a space inside the structure. Since the structure is covered with the water-impervious member, water can be stored in the space formed by the legs.

Further, it is preferable that the structural member is arranged so that the tips of the legs face in the same direction, and the joint member is formed in a plate shape and is provided between the other side of the base of the structural member and the leg tips. With this configuration, when the joint member is provided between the other side of the base and the tip of the leg, the shape of the other end of the base of the structural member does not directly match the shape of the leg tip of the structural member. Even if the shape of one side of this joint member conforms to the shape of the other side of the base of the structural member, the shape of the other side of this joint member conforms to the shape of the leg tips of the structural member. The two structural members located in the same direction are connected to each other. Further, since the joint member is formed in a plate shape, energy of vibration in one direction is absorbed by the flexural elastic deformation of the plate.

Next, the requirements constituting the present invention will be further described. The water tank in the present invention is provided under the structure, and the structure at this time is a house, a building, another building,
It includes buildings and other structures. Further, the water tank may be formed of, for example, concrete or metal, but may also be provided with a structure in which structural members are three-dimensionally connected and a water-blocking member covering the outside of the structure. good. The water tank of the present invention is provided on soft ground by forming the structural members forming the structure with a lightweight material. As the water-impervious member, a sheet formed of a soft synthetic resin such as synthetic rubber, a resin member formed of a hard synthetic resin, a metal member, a member formed of an inorganic material, or the like can be used.

The shape of the structural member is not particularly limited as long as it has a base and legs, but a rectangular base and hollow frustoconical legs protruding from one side of the base are provided. It would be nice if The hollow frustoconical leg is formed in a tubular shape, and the size of the leg on the base side is larger than the size on the tip side. The structural member thus formed can form a two-dimensionally or three-dimensionally aligned structural body by providing the connecting portions for connecting the structural members to each other at the four corners of the base and the tips of the legs.

Furthermore, the hollow frusto-conical leg has the same strength in any direction, so that there is no orientation in use. Further, since they can be stacked, the transportation efficiency can be improved. Further, when the legs of the structural member are formed in a tubular shape, it is possible to put a hardening filler such as ready-mixed concrete inside the tubular legs. By doing so, the filler is hardened inside the tubular leg, and it is possible to improve the pressure resistance and the load bearing capacity of the structure.

At least the structural member is preferably made of a lightweight material. Examples of the lightweight material include synthetic resin such as polypropylene, lightweight inorganic material, foamed material of inorganic material such as synthetic resin or lightweight concrete, light metal such as aluminum alloy, or composite material thereof. Since each structural member is made of a lightweight material, each member is lightweight. Since the weight of each member is small, transportation, transportation, construction, etc. are easy and the members are easily assembled. In addition, the structure is assembled by connecting a plurality of lightweight members, so that the structure is assembled in a short period of time.

The joint member is not particularly limited as long as it is plate-shaped and can connect the structural members in one direction. For example, a shape that can connect the other side of the base of the structural member and the tip of the leg,
The shapes are such that the bases of the structural members can be connected to each other, and the legs of the structural members can be connected to each other. When the structural members are connected in the same direction using this joint member, the direction may be such that the tip ends of the legs of the structural member are directed upward or the tip ends of the legs are directed downward. Furthermore, the joint member may be formed in a plate shape and reinforced with ribs.

The other joint member is not particularly limited as long as it can connect the structural members to each other in the direction orthogonal to the one direction. For example, the structural member may have a rectangular base, and the corners of the base may be connected to each other.

Further, the water storage device of the present invention comprises three structural members.
By providing the structure formed by connecting in three dimensions, it is possible to reduce the transmission of the vibration generated in the structure itself to the structures or facilities around the structure, and to isolate or suppress the vibration. (The energy of vibration is reduced). Similarly, vibrations transmitted to the structure from around the structure are isolated or damped on the structure.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a water storage device according to the present invention will be described below in detail with reference to the drawings. Note that FIG.
9 to 9, the same or equivalent structures and acting portions are designated by the same reference numerals.

FIG. 1 is a sectional view showing an embodiment of a water storage device according to the present invention. FIG. 2 is a sectional view taken along line I-I of FIG. The water storage device 1 uses the structure 5 and is provided under the house (building) 100, and can store rainwater that has fallen around the roof 101 of the house or around the house. That is, the water storage device 1 includes a foundation 92 such as a concrete board or crushed stone, and a structure 5 provided on the foundation 92 with a water-impervious sheet (water-impervious member) 97 and a protective sheet 98 interposed therebetween. Further, the water storage device 1 includes a concrete layer 93 provided on the structure 5 with a partially water-impervious sheet 97 and a protective sheet 98 interposed therebetween. The backfill material 94 is backfilled between the concrete layer 93 and the protective sheet 98 and the ground 89.

The foundation 92 is obtained by excavating the ground 89 to form a recess, and placing fresh concrete on the bottom of the recess,
Alternatively, it is provided with crushed stones. Reinforcing bars should be installed before pouring fresh concrete. The thickness of the base 92 is determined by the weight of the structure 5, the concrete layer 93, the house 100, and the like provided thereon. Also, basic 9
In some cases, crushed stones such as crushed stone C40-0 and crusher run 7 are provided as 2.

Water-blocking sheet 97 and protective sheet 98
Covers the perimeter of the top surface of the structure, the peripheral side surfaces, and the bottom surface outside. The material of the water blocking sheet 97 is, for example, PVC or PVC.
Use a synthetic resin sheet such as. As the material of the protective sheet 98, for example, synthetic resin long-fiber nonwoven fabric such as polyester monofilament is used. The concrete layer 93 averages the load applied to the structure 5, and it is preferable to insert a reinforcing bar. The thickness of the concrete layer 93 depends on the weight of the house 100. The backfill material 94 is crushed stone,
Sometimes sand or other materials or mixtures of these are used.

The structure 5 comprises a plurality of main bodies (structural members) 7
And the main bodies 7 are vertically or vertically (one direction) 6
A joint (joint member) 80 to be connected to 0, and a center stage 33 to be connected to the main body 7 located at the uppermost stage.
With. Furthermore, a corner joint (another joint member) 48 (FIG. 7) that connects the main bodies 7 to each other in the horizontal direction (the width direction 61 and the length direction 62 in the direction orthogonal to the vertical direction).
2) and a side member 67 provided on the outermost main body 7 and forming a side surface of the structure.

In the structure 5, the main body 7 is moved in the vertical direction 60.
6 columns in the width direction 61 and 8 columns in the length direction 62 (shown in FIG. 2). Furthermore, the main body 7, the center stage 33, the joint 80, and the corner joint 48 (not shown) are made of polypropylene, which is a lightweight material. Polypropylene is resistant to corrosion, load
It has durability against vibration and the like.

FIG. 3 is a cross-sectional view in which the main bodies 7, which are in a vertical relationship, are connected by a joint 80. Main body 7 in a vertical relationship
Position the main body 7 in the same direction, that is, with the tips 27 of the legs facing upward, and connect the main bodies 7 to each other by interposing a joint 80 between the other side 11 of the base 9 of the main body and the tips 27 of the legs. It was done.

FIG. 4 shows the main body 7, (A) is a plan view,
(B) is the II-II sectional view taken on the line of (A). The body 7 has a board-like base 9 and legs 21 extending from one side 10 of the board. As shown in the plan view of FIG. 4 (A), the base 9 is square, and the connecting portions 15 are provided at the four corners.
Incidentally, a corner joint 48 (FIG. 7) is interposed between the connecting portions 15 of the two main body bases to connect the main bodies 7 to each other.

Furthermore, the base 9 has a peripheral edge 13 along the edge of the square plate 12. Reinforcing ribs 18 are provided between the peripheral edges 13 or between the peripheral edges 13 and the legs 21 in a lattice shape or an oblique shape. The connecting portion 15 is connected to the main body 7 of the same shape and size (not shown). Each connecting part 15
The two connecting holes 16 are provided in a rectangular recess 15a that is recessed from the plate surface 12a.

Further, the base 9 is provided with ribs 18a for fixing side members 67 (FIG. 8) described later. Also,
The base 9 may have holes (not shown) through which one side 10 and the other side 11 pass. The size of the hole is structure 5
The size should be adjusted according to the intended use and application. When water is stored inside the structure 5, this water can move vertically and horizontally through this hole.

One leg 21 is provided at the center of the base 9. Its shape is a truncated cone, and the size of the base 9 side is larger than the size of the tip 27 side. A circular opening 20 is formed in the surface 12a of the base plate. Further, in the annular portion of the tip 27 of the leg 21, eight holes 29 for connecting with the joint 80 described above are provided at the same pitch on the same circumference. A circular opening 30 is provided at the tip 27.
Is formed.

FIG. 5 shows the joint 80, (A) is a plan view, and (B) is a sectional view taken along line III-III of (A). The joint 80 is a plate-shaped circular plate 81 having a projection 83 on one surface side and a projection 84 on the other surface side. The four protrusions 83 have four holes 19 formed in the base 9 of the main body.
(Shown in FIG. 4), the two protrusions 84 are inserted into two opposing holes 29 (shown in FIG. 4) among the eight holes 29 provided in the leg tips 27 of the main body. Further, the plate 81 is provided with tubular ribs 82a to 82e to reinforce the plate.

FIG. 6 shows the center stage 33,
(A) is a plan view and (B) is a sectional view taken along line IV-IV of (A). The center stage 33 is mounted on and connected to the tips 27 of the main body legs located at the uppermost stage of the structure 5 shown in FIG. Furthermore, the center stage 33 is formed in a disk shape,
A peripheral edge 39 having substantially the same size as the peripheral edge 13 of the main body base 9 is provided. That is, the peripheral edge 39 is formed around the rectangular plate 35.

Further, the center stage 33 has one annular connecting portion 43 provided on each of both sides of the central position of the rectangular plate 35, and another annular connecting portion 43 provided on each outside of the annular connecting portion 43. And a connecting portion 45. Ring connection part 4
3 has a hole 29 (FIG. 4) provided at the tip of the main body leg 21.
Protrusions 44a and 44b to be inserted into are provided. The annular connecting portion 45 is used when connecting another main body having four legs and is similarly provided with projections 46a and 46b.

Ribs 41 are provided in a lattice shape or an oblique shape between the annular connecting portions 43, 45 and the peripheral edge 39 on both sides of the plate 35. The plate 35 has side members 67.
Ribs 41a for fixing (FIG. 8) are provided. Connection parts 36 are formed at four corners of the plate 35. Each connecting portion 36
Has two connection holes 37 for connection.

FIG. 7 shows the corner joint 48,
(A) is a plan view and (B) is a sectional view taken along line VV of (A). The corner joint 48 has four protrusions 56 on one side of the plate 50. The protrusions 56 are provided symmetrically with respect to the center of the plate 50, and connect the connecting portions 15 (FIG. 4) of the main body base and the connecting portions 36 (FIG. 6) of the center stage to each other. When the protrusion 56 of the corner joint is connected to the connecting portions 15 and 36 of the main body 7 and the center stage 33, the protrusion 56 elastically bends to the other side, and the connecting hole 1 of the connecting portion 1
6 and 37 are inserted. Further, the plate 50 includes the edge ribs 5
2, ribs 54 and eight holes 57. Edge rib 52
The ribs 54 give the plate 50 a predetermined rigidity. Hole 5
7 is provided for material saving and weight saving.

FIG. 8 shows the side member 67, (A) is a front view and (B) is a right side view. The side member 67 is fixed to the main body 7 located on the outermost side of the structure 5 not shown,
Form the sides of the structure (shown in Figure 1). Side member 67
Is a rectangular plate 69 and an edge frame 7 provided on the edge of the plate 69.
1 and reinforcing ribs 73 provided in a grid pattern between the edge frames 71. Further, the side member 67 has two sets of projections 76 formed in one set at one end 74 and the other end 75 thereof. The ribs 18 a provided on the base 9 of the main body and the ribs 41 a provided on the center stage 33 are inserted and fixed in the gaps 77 between the protrusions 76. The shape of the protrusion 76 is not particularly limited, but is a cube, a rib, or the like.

The water storage device 1 of this embodiment having the above structure operates as follows. That is, in FIG.
Rainfall on the house 100 is immediately stored in the water storage device 1 provided under the house 100. Therefore, the rainwater that has fallen on the house 100 at the time of rainfall will not flow into the sewage or the gutter at one time and overflow. In addition, the water stored in the water storage device 1 is water for daily use, emergency water such as an earthquake or fire extinguishing,
It can be used for other purposes. Further, it can be used as a heat source for air conditioning in a house.

Further, the main body 7 is three-dimensionally connected by a joint 80 and a corner joint 48 (not shown). At this time, the legs 21 of the main body form a space 88 inside the structure 5. Since the structure 5 is covered with the water blocking sheet 97, rainwater can be stored in the space 88 formed by the legs 21.

Further, since the joint 80 is formed in a plate shape (plate 81 in FIG. 3), the plate 81 bends and elastically deforms in response to vertical vibration due to an earthquake or the like, and the vibration energy in the vertical direction 60 is absorbed. To be done. And the structure 5
Since the main bodies 7 are stacked in multiple stages, the vibration energy in the vertical direction 60 is absorbed by the plate 81 of each joint 80.

Further, the main body 7, the joint 80, and the corner joint 48 are made of an elastically deformable material, so that the vibration energy in the horizontal direction (width direction 61 and length direction 62) of the leg 21 and the joint. 80 elastic deformation or corner joint 48
It is absorbed by elastic deformation of. The main body 7 is 6 in the width direction
1 and the lengthwise direction 62, the horizontal energy of vibration is absorbed row by row. Eventually, the vertical component and the horizontal component of the vibration energy applied by an earthquake or the like are absorbed, and the housing 10 located above the water storage device is absorbed.
0 is seismically isolated.

Further, the structure 5 buried in the ground receives the earth pressure by the backfill material 94 on its outer surface. Side member 6
7 supports earth pressure from the backfill material 94, receives the water-blocking sheet 97 and the protective sheet 98 on a flat surface, and prevents breakage such as breakage. In addition, the side member 67 prevents the earth and sand from entering the inside of the structure 5 when the structure 5 is provided underground.

Next, as shown in FIG. 3, even if the shape of the other side 11 of the base of the main body and the shape of the leg tips 27 of the main body cannot be directly connected, the other side 11 of the base is By providing a joint 80 between the leg tip 27 and the leg tip 27, the shape of one side 85 of this joint can be adapted and connected to the shape of the other side 11 of the base 9 of the body. further,
The shape of the other side 86 of the joint is adapted to the shape of the leg tip 27 of the body and can be connected. Therefore, the two main bodies 7 located in the same direction are connected.

Further, the main body 7 is a leg 21 having a hollow truncated cone shape.
Since it has light weight and rigidity, it has excellent load resistance. Furthermore, the strength of the legs 21 in any direction can be substantially the same. Since the legs 21 have a hollow truncated cone shape, they can be stacked and the transportation efficiency can be improved.

Furthermore, the inside 31 of the tubular leg 21 of the main body can be filled with a filler. Here, the filler is a material that has fluidity when filled and that hardens with time after filling, and is, for example, ready-mixed concrete. The load resistance of the main body 7 can be increased by filling the inside of the leg 31 with the filling material. As a method of filling the filling material, a body in which the filling material is filled in the body legs 21 in advance and cured is prepared,
The structures 5 may be formed by connecting these. In addition, each time the main body 7 is assembled by one stage, or every several stages are assembled, the main body leg 21 positioned at the top is opened from the opening 30 of the main body leg 21 or after all the stages of the structure 5 are assembled. The filler may be filled from the opening 30 of the above.

FIG. 9 is a cross-sectional view in which another main body 8 having a vertical relationship is connected by a joint 80. As in the case of the main body 7 shown in FIG. 3, the main bodies 8 are positioned in the same direction, and the main bodies 8 are connected to each other by interposing the joint 80 between the other side 11 of the base 9 of the main body and the tips 27 of the legs. It was done.
The main body 8 comprises a board-shaped base 9 and one side 1 of the base 9.
It has legs 21 protruding from zero. The base 9 has the same shape as the base of the main body 7 shown in FIG.

One leg 21 is provided at the center of the base 9,
It has a cylindrical truncated cone shape whose diameter gradually decreases toward the tip 27. Further, the leg 21 has an outer cylinder 23 and an inner cylinder 25, and the outer cylinder 23 and the inner cylinder 25 are connected to each other at an annular portion of the tip 27, and the outer cylinder 23 is folded back to the inner cylinder 25. Are doing An outer cylinder 23 and an inner cylinder 25 are provided on the surface 12a of the base plate.
An annular opening is formed between and. Further, eight holes 29 for connecting the joint 80 and the center stage 33 described above are provided in the annular portion of the tip end 27 of the leg 21 at the same pitch on the same circumference. Circular opening 30 at tip 27
Is formed.

With such a structure, the vertical load can be received by the inner cylinder 25, and the vertical vibration energy can be easily absorbed. Since the structure and operation of the other parts of the structure using the main body 8 shown in FIG. 9 are the same as those shown in FIG. 1, the description thereof will be omitted.

[0045]

According to the present invention, rainwater can be stored.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a water storage device according to the present invention.

FIG. 2 is a sectional view taken along line I-I of FIG.

FIG. 3 is a cross-sectional view in which upper and lower bodies are connected by a joint.

FIG. 4 shows a main body, (A) is a plan view, and (B) is (A).
11 is a sectional view taken along line II-II of FIG.

FIG. 5 shows a joint, (A) is a plan view, and (B) is a sectional view taken along line III-III of (A).

FIG. 6 shows a center stage, (A) is a plan view,
(B) is a IV-IV sectional view taken on the line of (A).

FIG. 7 shows a corner joint, (A) is a plan view,
(B) is the VV sectional view taken on the line of (A).

FIG. 8 shows a side member, (A) is a front view, and (B) is a right side view.

FIG. 9 is a cross-sectional view in which another main body having a vertical relationship is connected by a joint.

[Explanation of symbols] 1 Water storage device 3 water tank 5 structure 7 Main body (structural member) 9 foundation 10 one side 11 the other side 21 legs 27 Tip 48 corner joints (separate joint members) 60 Vertical or vertical direction (one direction) 61 Width direction (direction orthogonal to one direction) 80 joint (joint member) 88 space 97 Water blocking sheet (water blocking member) 100 houses (buildings)

Claims (4)

[Claims] 1. A water storage device comprising a water storage tank, the water storage tank being provided under a structure. 2. The water storage tank according to claim 1, wherein the water tank comprises a structure and a water blocking member covering the structure, and the structure is formed by three-dimensionally connecting a plurality of structural members, The water storage device, wherein the structural member is provided with a base and legs extending from one side of the base, and the structure has a space formed therein by the legs. 3. The water storage tank according to claim 1, wherein the water storage tank includes a structure and a water-blocking member that covers the structure, and the structure connects a plurality of structural members and the structural members in one direction. And a joint member that connects the structural members to each other in a direction orthogonal to the one direction, the structural member includes a base and a leg extending from one side of the base. The structure is a water storage device in which a space is formed inside by the legs. 4. The structural member according to claim 3, wherein the structural members are arranged such that the tips of the legs of the structural members face in the same direction, and the joint member is formed in a plate shape, and is connected to the other side of the base of the structural member. A water storage device provided between the leg tips.