JP3208379B2 - Filling material for rainwater storage and infiltration facilities - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filler used for an underground water storage tank whose upper surface is covered with a coating layer, and more particularly, to a facility for storing and infiltrating rainwater or the like in a residential area or a factory site. The present invention relates to a filler for storage and infiltration facilities for rainwater or the like that supports a load applied to a coating layer on an upper surface in a water storage space.

[0002]

2. Description of the Related Art In recent years, since most of the ground surface in urban areas is covered with impervious surfaces such as buildings and pavements, rainwater does not penetrate underground and flows into lowlands to inundate houses, rivers and rivers. The danger of flooding is increasing. In addition, the amount of water used is increasing year by year, and there is a risk of water shortage if the amount of rainfall at the water source is small. For that reason, water measures have been greatly highlighted. Therefore, after storing rainwater for a certain period of time, it is sequentially released into rivers and the like and actively penetrates underground to prevent flooding of rivers and flooding of houses due to rainwater, etc. A storage facility for rainwater or the like to be pumped and used has been proposed.

[0003] As such a filler for storing and infiltrating facilities for rainwater or the like, there is, for example, a "filler used for underground water storage tanks" described in JP-A-10-195937. The filling member is composed of a plurality of support elements made of bars each having a fitting connection part at an upper end part and a lower end part, and a fitting connection part at the upper end part or a fitting part at the lower end part of the support element. It is composed of a plurality of connecting elements which are fitted into the mating connecting portion and are mated to the mating connecting portion.

[0004] The above "filling member used for underground water storage tanks"
Is formed by three-dimensionally assembling the connecting element and the column element, and is assembled by connecting the column element to the fitting portion formed as a cylindrical socket of the connecting element so that the column element is not easily pulled out. Can be A space obtained by arranging the filling members vertically and horizontally or by stacking a plurality of upper and lower stages is used as a water storage space, and a covering layer is provided at the top, and the load applied to the covering layer is applied to the support element. It is intended to be supported by.

[0005]

Although the above-mentioned filling member has sufficient strength to support the load applied to the coating layer, it has the following problems. That is, the connecting element is formed by integrally connecting the plurality of fitting portions to each other by a connecting portion formed of a group of ribs extending radially, and the fitting portion and the pillar element are connected so as not to be easily removed. ing. However, since the plurality of strut elements are not always connected to the fitting portion in the vertical direction exactly, when stacking,
It is not always possible to insert all of the column elements of the upper filling member into the corresponding upward fitting portions of the lower filling member simply by pressing from above. Therefore, 1 in the upper filling member
It is necessary to shift and align the lower end of one or a plurality of pillar elements so that the lower end can be inserted into the upward fitting portion in the lower stage. For this reason, there is a problem that the stacking is troublesome.

In addition, since the fitting portion and the column element are connected so as not to be easily removed, not only is it troublesome when stacking, but also easy to pull out when disassembling and removing. There is a problem that it takes time to dismantle. Further, in the above-described known filling member, a space formed between a plurality of support elements is used as a water storage space. Therefore, the inside of the support element is not considered as a water storage space. Therefore, the water space efficiency is reduced by the volume of the column element. Further, since the fitting portion is formed in a cylindrical socket shape and protrudes in the vertical direction of the connecting portion, it cannot be arranged at the uppermost portion or the lowermost portion. To that end, the connecting elements deployed at the top or bottom are:
The fitting part is a cylindrical socket having a single opening,
One side in the axial direction must be configured so as to be flush with one side of the connecting portion, and must be separately molded.

Further, when the filling members are arranged in a horizontal direction, the filling members are not in a structure in which they are merely in contact with each other and are not connected to each other. That is dangerous. The present invention has been made in view of such a situation, and the stacking work at the time of construction is safe and easy, while improving the water storage space efficiency,
An object of the present invention is to provide a filler for storage and infiltration facilities of rainwater or the like which is advantageous for transportation and storage.

[0008]

The present invention has the following configuration to achieve the above object. That is, the filler for storage and infiltration facilities of rainwater or the like according to the present invention includes a plurality of hollow pillars and a connection frame for vertically fixing the pillars, and the connection frame is an end of the pillar. A plurality of connecting portions for fitting and fixing are connected at predetermined intervals, and the connecting portions are integrally connected by a connecting bar and a connecting frame, and the connecting portion is provided inside the cylindrical portion and the cylindrical portion. And a difference between the inner diameters of the upper surface opening and the lower surface opening of the cylindrical portion divided by the stopper is formed so as to increase from the cylindrical portion in the central portion toward the outer peripheral portion. It is characterized by. It is preferable that the stopper is a plate-shaped body and is provided with a water-permeable hole. Further, a locking piece may be provided in the opening on the lower surface of the cylindrical portion. The support may have a configuration in which an annular bulge is formed at both end edges, and an annular protrusion that can be inserted into the lower surface opening and an annular protrusion located near the end surface of the lower surface opening are formed on the outer peripheral surface. preferable. Each side of the connection frame may be provided with a connector insertion hole, or together with the connector insertion hole, provided with a concave portion into which the hook of the earth and sand intrusion prevention plate is fitted, and a locking portion for locking the hook. It may be.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated embodiment will be described below in detail. Filling material is connection frame 1A and support 1B
Consists of FIG. 1 shows the connection frame 1A, where the upper half is a plan view and the lower half is a bottom view. The connection frame 1 </ b> A is formed by arranging a plurality of connection portions 10 opened on the upper and lower surfaces at predetermined intervals, connecting the plurality of connection portions 10 with the connection bar 20, and connecting the four circumferences with the connection frame 30. Is formed.
The connection bar 20 is provided diagonally with respect to the side surface of the rectangular connection frame 30, the side surface is curved as shown in FIG. 1, and the portion surrounded by the four connection portions 10 A circular through hole is formed.

The connecting portion 10 includes a cylindrical portion 11 and the cylindrical portion 1.
The stopper 12 is a plate-like body, and is provided at a substantially middle position of the height of the cylindrical portion 11. The stopper 12 is provided with a central through-hole 12a and a through-hole 12b that is in contact with the inner surface of the cylindrical portion 11 to lock the end surfaces of the columns 1B inserted from both sides of the cylindrical portion 11 and to connect the columns 1B to each other. Are formed so that rainwater or the like flowing into the inside of the container is passed. In addition, the structure of the stopper 12 does not provide a through-hole in the plate-like body as in the above-described structure, and may be simply a rib protruding inward, or may be a sashimi-shaped or cross-girder-shaped structure. The structure is not particularly limited as long as the structure supports the fitted support 1B.

The cylindrical portion 11 is divided by a stopper 12 into an upper opening 11a and a lower opening 11b.
A tapered surface 11c is provided at an upper portion of the inner surface of the upper surface opening 11a to facilitate insertion of the column 1B during assembly. Further, in the cylindrical portion 11 at the center, the inner diameter L1 of the upper opening 11a is equal to the inner diameter L of the lower opening 11b.
2, the inner diameter of the upper surface opening 11a is larger than that of the lower surface opening 11b in the cylindrical portion 11 at the four corners of the connection frame 30 (see FIG. 3). . That is, the difference between the inner diameters of the upper surface opening 11a and the lower surface opening 11b, that is, L1-L2, is formed so as to become larger as the tube portion in the center of the connection frame 30 is farther from the tube portion 11.

As described above, the difference between the inner diameters of the upper surface opening 11a and the lower surface opening 11b, that is, the distance from the center of the connecting frame 30 to the upper surface opening 11a is reduced.
By forming it larger than 1b, stacking of the filler at the time of construction becomes easy. The connection frame 1A and the support 1
The filler material obtained by assembling B is not always vertically assembled at equal intervals between the columns. Therefore, when the lower end portion of the upper column is fitted to the lower column portion 11 and sequentially stacked, the position facing the lower column portion shifts away from the central portion as the distance from the central portion increases with respect to the central column. become. Therefore, when the upper filler is stacked on the lower filler, the gap between the cylindrical portion of the lower filler and the support of the upper filler gradually increases as the distance from the center increases. The cylindrical portion 11 and the column 1B whose opposing positions are shifted must be adjusted and fitted to opposing positions.

At this time, if there is no difference in inner diameter between the upper surface opening 11a and the lower surface opening 11b, the cylinder portion 11 and the column 1B cannot be fitted even if they are slightly displaced. It takes time. However, as in the above-described configuration, the difference between the inner diameters of the upper surface opening 11a and the lower surface opening 11b increases as the distance from the center increases, so that the facing position between the cylindrical portion 11 and the support 1B is slightly shifted. Can be fitted.

Further, the inner surface of the lower surface opening 11b, that is,
Below the stopper 12, a locking piece 13 formed by a projection is provided at a position facing the through hole 12b. The locking piece 13 locks so that the column 1B does not easily fall off. The locking piece 13 can be omitted, and when the locking piece 13 is omitted, the inner surface of the lower surface opening 11b may be formed as an inclined surface so as to increase its diameter toward the opening surface.

The connecting bar 20 includes a top plate 21 and a side plate 22.
A reinforcing rib 23 for connecting the side plates 22 is provided at an appropriate interval inside, and a small hole 24 for ventilation is formed in the top plate 21. . Note that the connecting bar 20 may be formed so that the side surfaces are parallel to each other, and a portion surrounded by the four connecting portions 21 may be a substantially rectangular through hole. In addition, the connecting bar 20 is not limited to the above-described structure, and can be changed to an appropriate shape as long as the connecting portion 10 can be connected.

The connecting frame 30 has substantially the same structure as that of the connecting bar 20, is formed in a U-shaped cross section with an open lower surface, and has reinforcing ribs 31 provided at appropriate intervals inside. , Is connected to the connecting portion 10 via the protruding portions 32 and 33. The outer surfaces of the connection frames 30 are flat so as to be in close contact with each other when they are arranged side by side in the horizontal direction. The connection frame 30 includes a concave portion 34 into which a hook of an earth and sand intrusion prevention plate described later is fitted, a locking portion 35 for locking the hook,
A connector insertion hole 36 is formed. The concave portion 34 and the locking portion 35 are respectively formed two on each side. For example, in the upper side of FIG.
And a recess 34 is formed at a predetermined interval inside thereof, while a locking portion 35 is formed at the right end, and a recess 34 is formed at a predetermined interval inside it. In other sides, the positional relationship and the interval between the concave portion 34 and the locking portion 35 are formed in the same manner.

As shown in FIG. 4, the concave portion 34 is formed by forming a stepped portion 34a having a notched outer corner. As shown in FIG. 5, the locking portion 35 has a stepped portion 3 having a notched outer corner as in the case of the recessed portion 34.
5a is formed by providing a projection 35b at the edge of the hook for locking the hook of the earth and sand intrusion prevention plate. Also,
As shown in FIG. 6, the connector insertion hole 36 has a horizontal slit 37 provided in the top plate 30a of the connection frame 30 in parallel with the side plate 30b, and a vertical slit 38 communicating with the slit 37 in the side plate 30b. Is formed by

Next, the support 1B will be described. Prop 1
B is a cylindrical body as shown in FIG. 7, and annular bulging portions 40 are formed at both end edges to be engaged with the engaging pieces 13 provided on the lower surface opening 11 b of the cylindrical portion 11. An annular protrusion 41 that can be inserted into the lower surface opening 11b and an annular protrusion 42 that is larger than the inner diameter of the lower surface opening 11b are formed. The annular bulge 40 and the annular projections 41 and 42 are formed symmetrically at both ends, and either end can be inserted arbitrarily. When the support 1B is inserted into the lower opening 11b, the annular bulge 40 is engaged with the locking piece 13 so as not to easily fall off, and the annular projection 41 is fitted into the lower opening 11b. Thus, it is possible to more tightly fit and to connect with the connecting portion 10 in a straight line.
The annular projection 42 is formed so as to be located at the end face of the lower surface opening 11b when inserted into the lower surface opening 11b in order to confirm that the support 1B has been inserted into the lower surface opening 11b.

The column 1B is provided with a through hole 44 for allowing rainwater or the like to flow therein. Since rainwater or the like immediately flows into the inside of the column through the through hole 44, the inside of the column can also be effectively used as a part of the water storage tank, and the water storage rate can be improved. As described above, in the present invention, all voids can be effectively used for storing water, and stable stacking can be maintained because there is no portion acting as a floating body.

In the above embodiment, the annular bulge 40 and the annular protrusions 41 and 42 are formed on the outer peripheral surface of the end of the column 1B by injection molding using a mold. The projections 41 and 42 can be omitted as appropriate. When the annular bulging portion 40 and the annular protrusions 41 and 42 are appropriately omitted, the extruded pipe can be cut into an appropriate length to form the support 1B.
4 may be provided by post-processing.

Further, when fixing the fillers in a state of being juxtaposed, a connecting tool as shown in FIG. 9 may be used. That is, the H-shaped connecting member 47 includes a parallel plate 47a and a connecting plate 47b for connecting the parallel plates 47a to each other. First, to connect the filler, as shown in FIG.
The connecting tool insertion holes 36 may be abutted with each other, and the parallel plate 47a may be inserted into each horizontal slit 37, and the connecting plate 47b may be inserted into the vertical slit 38 at the same time. The parallel connection plate 47a prevents the connecting frame 1A of the filler from separating, and the displacement in the sliding direction is prevented by the connecting plate 47b inserted into the vertical slit 38. Can be linked.

The connecting bar 20 and the connecting frame 30 are not limited to the above-described structures, but may be arbitrarily changed in shape and structure as long as the connecting portions 10 can be connected to each other. It is possible.

Next, the earth and sand intrusion prevention plate 50 attached to the filler will be described with reference to FIGS. The earth and sand intrusion prevention plate 50 is provided with an annular rib 52 for fitting the end of the support 1B on one surface of a plate body 51 having substantially the same size as the filler connection frame 1A in a plane.
The annular ribs 52 are connected by reinforcing rib groups 53 provided vertically, horizontally and diagonally, and an edge frame 54 is provided on the periphery of the plate body 51. The reinforcing rib group 53 and the edge frame 54 have the same height as the annular rib 52, but the reinforcing rib 55 in the annular rib 52 has a low height to fit the support 1 </ b> B. It is formed at half height. Small holes 56 and 57 into which rainwater or the like flows between the ribs are provided in the plate body 51.
Are drilled.

In the edge frame 54, the concave portion 34 of the filler is provided.
And a notch 59 into which the hook 58 is fitted. The hook 58 is connected to the edge frame 54.
The notch 59 is formed by notching the edge frame 54 by almost the height of the hook 58. For example, on the lower side of FIG. 11, a notch 59 is formed at the left end, and a hook 58 is formed at a predetermined interval inside the notch 59, while a hook 58 is formed at the right end,
A notch 59 is formed at a predetermined interval on the inside. The relationship between the hook 58 and the notch 59 is the same in other sides.

The positional relationship and the interval between the hook 58 and the notch 59 are the same as those of the concave portion 34 and the locking portion 35. When the hook 58 is used as a lid on the upper surface of the filler, the hook 58 is When the hook 58 is attached to the side surface of the filler and is fixed thereto, the hook 58 is suspended by engaging with the projection 35a of the engaging portion 35 (see FIG. 16). Further, even when the hooks 58 and the notches 59 face each other with the hooks of the earth and sand intrusion prevention plates 50 protruding from each other facing each other due to the above configuration, one hook 58 fits into the other notch 59. The hooks 58 can be stored and transported in a state in which the hooks 58 are stored.

Next, the case where the filler is assembled by using the connecting frame 1A and the support 1B will be described.
A support 1B is provided on the lower surface opening 11b constituting the connecting portion 10 of FIG.
When the end of the support 1B is fitted, the end face of the support 1B
2 and a support 1B on one side of the connection frame 1A.
The filler with the erecting is assembled. At this time, pillar 1
B is fixed at a right angle to the connecting frame 1A by the tight fit of the annular bulge 40 and the annular projection 41.
In order to actually fill the storage and infiltration facility for rainwater or the like, a filler in which the support 1B is assembled in the lower opening 11b of the connecting frame 1A in advance is used, and the upper opening of the connecting portion 10 of the lower connecting frame 1A is used. It is preferable that the lower end portions of the upper columns 1B are fitted to 11a so as to be sequentially stacked, but it is also possible to assemble the connection frames 1A and the columns 1B alternately and directly at the site.

Next, the case where the above-mentioned filler is used for a storage facility for rainwater or the like will be described. First, the ground is dug down to form a concave storage tank for rainwater or the like, and the inner peripheral surface is made of concrete, resin sheet or the like. With a water-impermeable layer. Then
The filler having the above configuration is filled therein. The filler may be sequentially assembled by fitting columns into the lower surface opening 11b side of the connecting frame in advance and integrally assembling them. However, the columns are fitted into the connecting frame at the site to stand almost vertically. The connecting frame may be alternately assembled by stacking a connecting frame on the support and erection of the support on the connecting frame. Then, an earth and sand intrusion prevention plate 50 may be placed on the upper surface of these fillers, and a covering layer of earth and sand may be provided thereon, or an impermeable layer of concrete or the like may be provided thereon.

A rainwater or the like storage facility filled with the filler is provided with an inlet for rainwater or the like which leads to a gutter in a residential area or the like, a rain gutter in a house, etc. And an intake pipe for pumping rainwater or the like to the outside may be provided so that the pump can be used for pumping. When the above-mentioned storage facility for rainwater or the like is used, the porosity is high and a large amount of rainwater can be stored.

When the storage facility for rainwater or the like is a facility that can permeate rainwater or the like, the bottom and peripheral surfaces of the storage tank may be provided with a permeable layer so that rainwater or the like can permeate. Rainwater permeates from the upper coating layer, flows in from the inflow port, is stored in the water storage tank, and gradually permeates from the side and bottom surfaces of the water storage tank with time. Therefore, even if there is a torrential rain, it is possible to temporarily store rainwater etc. in this water tank, so that the house is not flooded and the river is not flooded. Recharge is possible.

A construction example of a storage facility for rainwater or the like using the earth and sand intrusion prevention plate 50 will be described. First, the ground is dug into a water storage tank. Spread gravel etc. at the bottom of the water tank,
If necessary, the earth and sand intrusion prevention plates 50 are laid out side by side, and the filler is connected thereon in the vertical and horizontal directions. The fillers are integrally connected by abutting the connecting tool insertion holes 36 and inserting the H-shaped connecting tool 47. Next, the earth and sand intrusion prevention plate 50 is attached to the outer peripheral surface of the filler positioned outside. The earth and sand intrusion prevention plate 50 is hung down by the hook 58 being locked to the side plate 35b of the locking portion 35 of the connection frame 1A (see FIG. 16).

Further, when the earth and sand intrusion prevention plate 50 is used as a lid to prevent intrusion of earth and sand from the upper surface of the connection frame 1A located at the upper portion, the hook 58 is formed in the concave portion of the connection frame 1A. 34 and is fixed (see FIG. 17).
reference). Thereafter, the outer peripheral portion is filled with backfilled earth and sand, and a covering layer of earth and sand may be provided on the upper portion. The water tank having the above-mentioned configuration is provided with an inflow port for rainwater or the like that communicates with a gutter in a residential area or the like, a rain gutter in a house, or the like.

[0032]

According to the filler according to the present invention, since the support and the connecting frame for connecting the support are separately formed and assembled integrally when used, the strength and length of the support can be reduced. It can be determined according to the scale and use of the storage and infiltration facility to be used, and for example, the thickness of the support can be adjusted to be thicker or thinner by the load applied to the coating layer. Also, when used for small light loads,
Adjustments such as reducing the number of columns used can also be made.

Further, the connecting portion of the connecting frame is formed such that the difference between the inner diameters of the upper surface opening and the lower surface opening increases from the central portion toward the outer peripheral portion, so that the filler can be easily stacked during construction. Become. Also, by forming the support and the connecting frame separately, transportation and storage can be performed at a reduced cost without storage space, and since there is no direction in stacking the support and the connecting frame together, Construction is easy,
Construction costs can be reduced.

[Brief description of the drawings]

FIG. 1 shows a connecting frame constituting a filler of the present invention;
The upper half is a plan view and the lower half is a bottom view.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is an enlarged sectional view of a connecting portion.

FIG. 4 is a perspective view of a concave portion formed in the connection frame of the connection frame.

FIG. 5 is a perspective view of a locking portion formed on a connection frame of the connection frame.

FIG. 6 is a perspective view of a connector insertion hole formed in the connection frame of the connection frame.

FIG. 7 is a front view of a column in which an upper half is sectioned.

FIG. 8 is a partially enlarged cross-sectional view showing a state where a support is fitted to a connection frame and assembled.

FIG. 9 is a perspective view of a connector.

FIG. 10 is an enlarged cross-sectional view for explanation when connecting the connection frames.

FIG. 11 shows the earth and sand intrusion prevention plate, wherein the upper half is a plan view and the lower half is a bottom view.

FIG. 12 is a front view of the earth and sand intrusion prevention plate.

FIG. 13 is an enlarged perspective view of a bottom corner of the earth and sand intrusion prevention plate.

FIG. 14 is a sectional view of a corner portion of the earth and sand intrusion prevention plate.

FIG. 15 is a front view of a filler in which a connection frame and a support are assembled.

FIG. 16 is a cross-sectional view of a main part in a state where a sediment intrusion prevention plate is attached to a side surface of a connection frame.

FIG. 17 is an explanatory front view of a state in which the earth and sand intrusion prevention plate is attached to the filler.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1A Connection frame 1B Prop 10 Connection part 11 Tube part 11a Upper surface opening 11b Lower surface opening 12 Stopper 12a Through hole 12b Through hole 13 Engagement piece by projection 20 Connecting bar 21 Top plate 22 Side plate 23 Reinforcement rib 24 Water draining hole Reference Signs List 30 connection frame 30a top plate 30b side plate 31 strong rib 32, 33 projecting portion 34 concave portion 35 locking portion 36 connecting member insertion hole 30a top plate 30b side plate 37, 38 slit 40 annular bulging portion 42, 43 annular protrusion 44 through hole 47 Connector 50 Earth and sand intrusion prevention plate 51 Plate 52 Ring rib 53 Reinforcement rib group 54 Edge frame 55 Reinforcement rib 56, 57 Small hole

Continued on the front page (72) Inventor Atsushi Ushio 1 Nobesawa, Kaisei-cho, Ashigarashimo-gun, Kanagawa Prefecture Inside the headquarters of Meiji Rubber Kasei Co., Ltd. In the Kasei headquarters factory (72) Inventor Isao Inoue 1 Nobesawa, Kaisei-cho, Ashigara-gun, Kanagawa Prefecture In-house Meiji Rubber Kasei headquarters factory (56) References JP-A-9-296486 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) E03F 1/00 E03F 5/10 E03B 3/03

Claims (6)

(57) [Claims] The present invention comprises a plurality of hollow pillars and a connecting frame for vertically fixing the pillars, wherein the connecting frame has a plurality of connecting portions for fitting and fixing the ends of the pillars at predetermined intervals. And the connecting portions are integrally connected by a connecting bar and a connecting frame, and the connecting portion includes a cylindrical portion and a stopper disposed inside the cylindrical portion and capable of passing water, and is divided by the stopper. Characterized in that the difference in the inner diameter between the upper opening and the lower opening of the formed cylindrical portion is formed so as to increase from the cylindrical portion in the central portion toward the outer peripheral portion, and is filled for rainwater storage and infiltration facilities. Wood. 2. The filler for storage and infiltration facilities for rainwater or the like according to claim 1, wherein the stopper is a plate-like body and is provided with a through hole through which water can pass. 3. The filling material for storing and infiltrating facilities for rainwater or the like according to claim 1, wherein a locking piece is provided in an opening in the lower surface of the cylindrical portion. 4. The support pillar has an annular bulge formed at both end edges, and an annular protrusion which can be inserted into the lower surface opening and an annular protrusion located near the end surface of the lower surface opening formed on the outer peripheral surface. The filler for storage and infiltration facilities for rainwater or the like according to any one of claims 1 to 3, characterized in that: 5. The connecting frame according to claim 1, wherein a connecting hole is provided on each side of the connecting frame.
The filler for rainwater storage and infiltration facilities as described in the item. 6. A side wall of the connection frame is provided with a recess for receiving a hook of the earth and sand intrusion prevention plate and a locking portion for locking the hook, together with a connection tool insertion hole. The filler for storage and infiltration facilities of rainwater according to any one of claims 1 to 4.