CN100485142C

CN100485142C - Underground water storage tank

Info

Publication number: CN100485142C
Application number: CNB2005800024325A
Authority: CN
Inventors: 高井征一郎
Original assignee: Totetu Manufacturing Co Ltd
Current assignee: Totetu Manufacturing Co Ltd
Priority date: 2004-06-25
Filing date: 2005-05-19
Publication date: 2009-05-06
Anticipated expiration: 2025-05-19
Also published as: CN1910325A

Abstract

The project is to remarkably increase water storage amount by less causing water leakage. (MEANS FOR SOLVING PROBLEMS) This underground water storage tank comprises internal water storage tanks (11) formed by covering, by first water shielding sheets (14), the aggregate of water bearing materials formed by combining the plurality of water bearing materials (12) with each other, soil pressure absorbing plate materials (26) installed on the outsides of the internal water storage tanks (11), and second water shielding sheets (27) covering the soil pressure absorbing plate materials (26). The water bearing material is formed of a resin rigid pipe (12), and the aggregate of the water bearing materials is formed by connecting the plurality of rigid pipes (12) parallel with each other by pipe connection means (13) in the state of the plurality of rigid pipes (12) vertically positioned and horizontally arranged parallel with each other through specified distances. Bar-like steel materials (23) are vertically driven into the ground, the rigid pipes (12) are fixedly fitted to the bar-like steel materials (23) to fix the aggregate of the water bearing materials to the bar-like steel materials (23). The plurality of internal water storage tanks (11) are horizontally installed through inter-tank damping materials (24), and covered by the series of second water shielding sheets (27).

Description

Underground water storage tank

Technical field

The present invention relates to a kind of underground water storage tank underground and can storage of water that is configured to be embedded in.

Background technology

As the equipment that is used to effectively utilize rainwater, the known routinely a kind of hopper that will wherein can store rainwater is embedded in underground equipment.This underground water storage tank is configured to fall the roof in house or the rainwater on ground by the collection of rainwater soleno-canal, and the rainwater of collecting is imported and is stored in the inside of groove.This equipment is provided with the dewatering installation pump for example that can extract the water of storing in the equipment from ground out, and is configured to by the water stored in this dewatering installation extraction equipment so that such water is utilized.

Routinely, knownly a kind ofly be used for this equipment and be installed in underground hopper in better simply mode, this groove has the stacked backwater material (water-bearingmaterial) that comprises sand, gravel, rubble etc.This hopper is to form like this: excavation will form the place of underground water storage tank; On the lowermost part of the centre in this place of excavating, plate is set, and at the stacked backwater material that comprises sand, gravel, rubble etc. of the middle body of plate; After this, thus the periphery of raising plate around the periphery of backwater material; And the end of plate is placed on the upper surface of backwater material.This underground water storage tank is configured to storage of water in the gap between the backwater material that comprises sand, gravel, rubble etc.

But above-mentioned underground water storage tank has such problem, that is, owing to have the relatively large backwater material that comprises sand, gravel, rubble etc. in the space by the plate sealing, the amount of the rainwater of storing etc. is less.In order to address this problem, proposed to use respectively the plastic shaped body that forms by mould to form backwater material (for example, with reference to patent documentation 1).Under the situation of the backwater material that comprises plastic shaped body, the use of this plastic shaped body can reduce the backwater material and take ratio in the volume of plate sealing, thereby increases the amount of rainfall of storing.

Patent documentation 1:JP-B-4-35580 (claims).

Summary of the invention

But, in the underground water storage tank of routine, because hopper all is embedded in underground, so act directly on the plate that is used to cover backwater collection of material body from ground pressure on every side, thereby meeting such as intratelluric sharp stone on every side contacts with plate and destroys this plate, has problem ground to cause water to leak thus.In addition, under the situation of the backwater material that comprises plastic shaped body, the stack height of backwater material can be limited, thereby problem is arranged make and the amount of rainfall of storing in the underground water storage tank can not be increased to the expection water level.In addition, under the situation that will be embedded in underground underground water storage tank, owing to being difficult to carry out inner the cleaning and maintenance, so wish in groove, to store than clean water so that avoid the contaminated situation in the inside of this groove as much as possible.

Therefore, first purpose of the present invention provides a kind of underground water storage tank that seldom causes water to leak.

Second purpose of the present invention provides a kind of underground water storage tank that can significantly increase the amount of the water of wherein storing.

The 3rd purpose of the present invention provides a kind of underground water storage tank that can store therein than clean water.

Underground water storage tank 10 as shown in Figure 1 according to the present invention is configured to be embedded in underground and can storage of water.

This underground water storage tank is characterised in that and comprises:

By the inside hopper 11 that the assembly that covers backwater material 12 with the first waterproof plate 14 forms, the assembly of this backwater material 12 obtains by a plurality of backwater materials 12 of mutual combination;

Be arranged on the ground pressure baffle 26 of inner hopper 11 outsides; And

The second waterproof plate 27 that is used for mulching soil pressure baffle 26.

In described underground water storage tank, ground pressure baffle 26 is arranged on inner hopper 11 outsides and ground pressure baffle 26 is covered by the second waterproof plate 27, feasible being applied on the second waterproof plate 27 and by ground pressure baffle 26 from ground pressure on every side absorbs, thereby can prevent that ground pressure is applied directly on the first waterproof plate 14.Like this,, also can avoid the first waterproof plate 14 to break, thereby prevent that effectively the water of storing in the inner hopper from leaking into the outside even ground pressure breaks the second waterproof plate 27.

According to underground water storage tank as shown in Figure 2 of the present invention, wherein the backwater material is the rigid pipe that is formed from a resin respectively; And

Wherein the assembly of backwater material is to be arranged to vertically therebetween at a plurality of rigid pipes that along continuous straight runs has under the state of predetermined space, and a plurality of rigid pipes form by linking mutually and abreast with pipe hookup mechanism 13.

In underground water storage tank as shown in Figure 2, compare with the backwater material that comprises sand, sandstone, rubble etc., adopt rigid pipe can reduce backwater material 12 and in the inner space of inner hopper 11, take ratio, thereby can increase the amount of rainfall that to store as the backwater material.In addition, when when processing those extrusion modlings preparation and comparatively cheap big buret and make rigid pipe, can avoid the cost per unit of underground water storage tank 10 to increase.In addition, rigid pipe is arranged to therebetween along continuous straight runs and is had predetermined space and links mutually by hookup mechanism 13, thus the quantity of the rigid pipe that can reduce to use, to avoid because the increase of the quantity of the rigid pipe that uses causes the cost increase.

Underground water storage tank also comprises and vertically is deposited in underground bar-shaped steel 23 according to an embodiment of the invention;

Wherein applicable rigid pipe cooperates respectively and is mounted and fixed on the bar-shaped steel 23, thereby the assembly of backwater material is fixed on the bar-shaped steel 23.

In this embodiment, the assembly of backwater material is fixed to and is deposited on the underground bar-shaped steel, thereby can avoid assembly to collapse.This makes can assemble the relatively large rigid pipe as the backwater material, thereby can increase the amount of rainfall that can store in the underground water storage tank 10.

Alternatively, in described underground water storage tank, inner hopper 11 comprises the along continuous straight runs setting and is respectively arranged with a plurality of inner hopper 11 of padded coaming 24 between groove therebetween; And

Wherein the second waterproof plate 27 is set up continuously to cover a plurality of inner hoppers 11.

In this case, provide a plurality of inner hoppers 11, thereby can increase the amount of rainfall that to store in the inner hopper 11.In addition, respectively at padded coaming 24 between insertion groove between the inner hopper 11, thereby can prevent that the first waterproof plate 14 that constitutes inner hopper 11 from breaking, even and when the first waterproof plate 14 at inner hopper 11 places breaks, can prevent that still water of storing in another inner hopper 11 from leaking, the situation of leaking fully with the water of avoiding occurring storing.

Alternatively, between the first waterproof plate 14 and the second waterproof plate 27, limit the outside water storage room 29 that comprises ground pressure baffle 26;

One of them or two or more first intake pipes 28 are arranged to penetrate this first waterproof plate 14, an end of each first intake pipe be communicated to this inside hopper 11 and other end opening to this outside water storage room 29; And

Wherein each first intake pipe 28 is provided with first flap valve 31, this first check valve configuration becomes: when the hydraulic pressure of this outside water storage room 29 is equal to or higher than hydraulic pressure each inner hopper 11 in, allow water from these outside water storage room 29 each inner hopper 11 inside of inflow; And when the hydraulic pressure of this outside water storage room 29 is lower than hydraulic pressure in each inner hopper 11, forbid that water is from each inner hopper 11 inner these outside water storage room 29 that flow into.

In this case, water is directed to this outside water storage room 29, allows thus water is imported a plurality of inner hoppers 11 and to be stored in each hopper via first flap valve 31 and first intake pipe 28.

Alternatively, the connecting piece 72 that this underground water storage tank also comprises a plurality of vertical tubes 71 and is used for vertical tube 71 is linked mutually, these vertical tubes 71 and connecting piece 72 are embedded in this ground pressure baffle 26;

Wherein, each first intake pipe 28 passes this first waterproof plate 14 and is provided with, so that the other end opening of each first intake pipe 28 is to the inside of an applicable vertical tube 71; And

Wherein, this first flap valve 31 is arranged on the other end place that is positioned at this applicable vertical tube 71 of each first intake pipe 28.

In this case, can be by water being imported the inside of vertical tube 71 and connecting piece 72, and storage of water in this outside water storage room 29 reliably.

Alternatively, as shown in figure 10, this underground water storage tank also comprises:

One or two or more second intake pipes 51, an end of each second intake pipe are set at and penetrate this second waterproof plate 27 and is communicated with this outside water storage room 29, and the other end centers on the periphery of this second waterproof plate 27 at the ground under shed;

Be arranged on an end of each second intake pipe 51 or second flap valve 52 of the other end, and this second check valve configuration becomes: when the hydraulic pressure at the other end place of each second intake pipe 51 is equal to or higher than the hydraulic pressure at this end place of each second intake pipe 51, allow water to flow to this end from the other end of each second intake pipe 51; When the hydraulic pressure at the other end place of each second intake pipe 51 is lower than the hydraulic pressure at this end place of each second intake pipe 51, stop water to flow to the other end from this end of each second intake pipe 51; And

On periphery, be formed with the perforated pipe 53 of a plurality of permeable hole 53a, this perforated pipe is buried by this way, be that the one end is connected to the other end of each second intake pipe 51 or is connected to this second flap valve 52, and its other end is positioned on this second flap valve 52.

In this case, drop in the relative broad range and be seeped into underground and be filtered clean rainwater and collected and import second intake pipe 51 by perforated pipe 53, and rainwater can enter underground water storage tank 10 from this second intake pipe 51, thereby can collect and store the rainwater that drops on the relative broad range effectively.

Relate to as shown in figure 18 the improvement that is configured to be embedded in underground and underground water storage tank 110 that can storage of water according to one embodiment of the invention.

This underground water storage tank is characterised in that and comprises:

The inside hopper 111 that comprises the first backwater material 112 that is covered by the first waterproof plate 114;

The outside water storage room 119 that between the first waterproof plate 114 that is provided with around this inside hopper 111 and the second waterproof plate 118, limits, this outside water storage room forms by covering the second backwater material 117 that is provided with around this inside hopper 111 with this second waterproof plate 118;

One or two or more intake pipes 121, each intake pipe are arranged to penetrate this first waterproof plate 114, and the one end be communicated with this inside hopper 111 and other end opening to this outside water storage room 119;

Be arranged on the flap valve 122 at each intake pipe 121 place, this check valve configuration becomes: when the water level of this outside water storage room 119 is equal to or higher than water level this inside hopper 111 in, allow water from these outside water storage room 119 these inside hopper 111 inside of inflow; And when the water level of this outside water storage room 119 is lower than water level in this inside hopper 111, stop water from these inside hopper 111 inner these outside water storage room 119 that flow into; And

Be used for and be stored in the feed pipe 127 that these inside hopper 111 interior water offer this outside water storage room 119 by this flap valve 122 and each intake pipe 121.

For described improved underground water storage tank, also covered by the inside hopper 111 that covers 112 acquisitions of the first backwater material with the first waterproof plate 114 by the second waterproof plate 118, make to be applied on the second waterproof plate 118, thereby prevent that ground pressure is applied directly on the first waterproof plate 114 from ground pressure on every side.Therefore, even when the second waterproof plate 118 breaks because of ground pressure, still can avoid the first waterproof plate 114 to break, thereby can prevent effectively that the water of storing in the inner hopper 111 from leaking into the outside.In addition, the water that will be stored in the inner hopper 111 is provided for outside water storage room 119 via feed pipe 127, and flow into these inside hoppers 111 from this outside water storage room 119 via flap valve 122 and intake pipe 121, even thereby when the second waterproof plate 118 break and outside water storage room 119 in water when leaking, the water that also prevent effectively in the inside hopper 111 that is covered by the first waterproof plate 114 leak into outside situation.

Alternatively, this inside hopper 111 comprises the along continuous straight runs setting and is provided with a plurality of inner hopper 111 of padded coaming 117 between groove therebetween; And

Wherein the second waterproof plate 118 is set up continuously to cover a plurality of inner hoppers 111.

Provide a plurality of inner hoppers 111 can increase the amount of rainfalls of storing in the underground water storage tank 110, the size of each inner hopper 111 is easy to construct and need not to increase to very big size simultaneously.In addition, a plurality of inner hoppers 111 are made independently, can prevent that still the water of storing in another inner hopper 111 from leaking even when the first waterproof board slot 114 at inner hopper 111 places, break thus, thus the situation that the water that can avoid occurring storing leaks fully.

Alternatively, each second backwater material 117 comprises the Foamex sheet material that is formed with a plurality of current groove 117a on the surface.

Like this, the second backwater material 117 that is comprised Foamex sheet material on every side from the ground pressure that applies to the second waterproof plate 118 absorbs effectively, thereby prevents effectively that ground pressure is applied on the first waterproof plate 114 and the situation that inner hopper 111 is broken.

In addition, because the surface of the second backwater material 117 is formed with a plurality of groove 117a so that water therefrom flows through, so the outside water storage room 119 shared backwater ratios that limit between the first waterproof plate 114 and the second waterproof plate 118 by covering the second backwater material 117 are a plurality of groove 117a shared ratios in the second backwater material 117.Like this, can reduce backwater ratio self by quantity that reduces groove 117a or the cross sectional area that reduces groove, thereby the backwater ratio that reduces makes when water flows into outside water storage room 119 from the outside, water level in the outside water storage room 119 raises fast, the water of supplying with outside water storage room 119 can be transferred in the inner hopper 111 apace thus.

In addition, even when in the second waterproof plate 118, forming aperture,, just can be restricted to the amount that leaks into outside water from these holes less as long as make the backwater ratio at outside water storage room 119 places less.On the other hand, offer from feed pipe 127 at time per unit under the situation of the water yield greater than the water yield of outside water storage room 119 from such small hole leaking to the outside, the water that major part offers outside water storage room 119 will be directed in the inner hopper 111 and will be stored in wherein by flap valve 122 and intake pipe 121, thereby the function that can avoid occurring underground water storage tank 110 is subjected to the situation of very big loss.

Alternatively, feed pipe 127 is arranged on the bottom of this outside water storage room 119 so that this end of this feed pipe 127 is lower than its other end;

Wherein this end of this feed pipe 127 is connected to the management liquid measure 128 of the outside that is arranged on this second waterproof plate 118; And

This management liquid measure 128 is arranged such that the water that offers this liquid measure 128 offers this outside water storage room 119 from this management liquid measure 128 by feed pipe 127.

Owing to the water that offers this liquid measure 128 from the outside offers this outside water storage room 119 from this management liquid measure 128 via feed pipe 127, therefore, even when water comprises earth, sand etc., these earth, sand etc. also can be deposited in this management liquid measure 128 or the feed pipe 127, thereby can prevent these outside water storage room 119 of intrusion such as earth, sand.Note, one end of this feed pipe 127 is lower than the other end and is connected to management liquid measure 128, thereby, stopping from the outside after management liquid measure 128 provides water, the pipe 127 that edges such as the earth of precipitation, sand tilt in the feed pipe 127 flows, and arrives management liquid measure 128 and accumulates in the bottom of managing liquid measure 128.

Alternatively, as shown in figure 25, the connecting piece 172 that this underground water storage tank also comprises a plurality of vertical tubes 171 and is used for vertical tube 171 is linked mutually, these vertical tubes 171 and connecting piece 172 are embedded in this second backwater material 117;

Wherein, the other end of this feed pipe 127 is connected to an applicable vertical tube 171;

Wherein, each intake pipe 121 is arranged on this first waterproof plate, 114 places, makes the other end opening of each intake pipe 121 arrive the inside of an applicable vertical tube 171; And

Wherein this flap valve 122 is arranged on the other end place that is positioned at this applicable vertical tube 171 of each intake pipe 121.

Because the water that provides from the outside is imported into the vertical tube 171 that constitutes outside water storage room 119 via management liquid measure 128 and feed pipe 127, and flow into inner hopper 111 from vertical tube 171, thereby make and provide from the outside and settled water such as earth, sand can be stored in the inner hopper 111 effectively via flap valve 122 and intake pipe 121.

According to underground water storage tank of the present invention, the ground pressure baffle is arranged on inner hopper outside, and the ground pressure baffle is covered by the second waterproof plate, make and absorbed by this ground pressure baffle from ground pressure on every side, thereby can avoid ground pressure to be applied directly on the first waterproof plate, can prevent that thus the water of storing in the inner hopper from leaking into the outside.In addition, when the backwater material be resin make rigid pipe the time, can reduce the backwater material and in the inner space of inner hopper, take ratio, thereby can increase the water yield of storage and avoid the cost per unit of underground water storage tank to increase.In addition, cooperate to install and be fixed to when rigid pipe and be embedded on the underground bar-shaped steel, can assemble relatively large rigid pipe, thereby can increase the water yield of being stored in the underground water storage tank as the backwater material with thus fixedly during the assembly of backwater material.

In addition, when along continuous straight runs is provided with a plurality of inner hopper, can increase the amount of rainfall of being stored in the underground water storage tank, simultaneously between an inner hopper and another the inner hopper between insertion groove padded coaming can prevent that the first waterproof plate that constitutes inner hopper from breaking, thereby the situation that the water of avoiding occurring storing leaks fully.In the case, between the first waterproof plate and the second waterproof plate, limit the outside water storage room that comprises the ground pressure baffle, first intake pipe is set at and penetrates the first waterproof plate and first flap valve is separately positioned on the first gutter place, thereby can be by water being imported outside water storage room, and import a plurality of inner hoppers and water is stored in the hopper via the water that first flap valve and first intake pipe will guide like this.

In addition, under underground water storage tank comprises situation with lower member: one or two or more second intake pipes, one end of each second intake pipe is set at and penetrates the second waterproof plate and be communicated with outside water storage room, and the other end around the periphery of the second waterproof plate at the ground under shed; Be arranged on an end of each second intake pipe or second flap valve of the other end; And the perforated pipe that on its periphery, is formed with a plurality of permeable holes, this perforated pipe is buried by this way, and promptly the one end is connected to the other end of each second intake pipe or is connected to second flap valve, and its other end is positioned on this second flap valve; Drop in the relative broad range and permeate the ground and second intake pipe can be collected and import to the rainwater that is filtered by perforated pipe, and rainwater can further enter underground water storage tank from this second intake pipe, thereby makes underground water storage tank can collect and store the rainwater that drops on the relative broad range effectively.

In addition, according to another underground water storage tank of the present invention, also covered by the inside hopper that covers the acquisition of the first backwater material with the first waterproof plate by the second waterproof plate, make to be applied on the second waterproof plate, thereby prevent that ground pressure is applied directly on the first waterproof plate from ground pressure on every side; Therefore,, still can avoid the first waterproof plate to break, thereby the water of avoiding effectively storing in the inner hopper leak into the outside even when the second waterproof plate breaks because of ground pressure.In addition, the water that inner hopper is configured to be stored in the inner hopper offers outside water storage room via feed pipe, and flow into this inside hopper from this outside water storage room via this flap valve and intake pipe, even thereby when the second waterproof plate break and outside water storage room in water when leaking, the water that also prevents effectively in the inside hopper that is covered by the first waterproof plate leaks into outside situation.

In addition, when along continuous straight runs is provided with a plurality of inner hoppers and inserts the second backwater material between them, can increase the amount of rainfall of being stored in the underground water storage tank, the size of each inner hopper is easy to construct and need not to increase to very big size simultaneously.In addition, a plurality of inner hoppers are made independently, even the first waterproof board slot at an inner hopper place breaks and can prevent that still the water of storing in another inner hopper from leaking thus, thus the situation that the water that can avoid occurring storing leaks fully.Here, when the second backwater material is the Foamex sheet material on each surface that all has a plurality of current grooves of formation, can absorb the ground pressure that applies to the second waterproof plate from every side effectively.In addition, compare, when the second backwater material is Foamex sheet material, covers the second backwater material with the second waterproof plate and become fairly simple with the task of obtaining outside hopper thus with the situation that the second backwater material is made by sand, gravel, rubble etc.In addition, because the shared backwater ratio of outside water storage room is a plurality of grooves shared ratios in the second backwater material, so can reduce backwater ratio self by quantity that reduces groove or the cross sectional area that reduces groove, thereby the backwater ratio that reduces make when water when the outside flows into outside water storage room, water level in the outside water storage room raises fast, the water of supplying with outside water storage room can be transferred in the inner hopper apace thus.

In addition, be arranged on the bottom of this outside water storage room so that this end of this feed pipe is lower than the other end when feed pipe; This end of this feed pipe is connected to the management liquid measure of the outside that is arranged on this second waterproof plate; And this management liquid measure is arranged such that the water that offers this management liquid measure is when this management liquid measure offers this outside water storage room by feed pipe, even and when water comprises earth, sand etc., these earth, sand etc. also can be deposited in this management liquid measure or the feed pipe, thereby can prevent that earth, sand etc. from arriving this outside water storage room, and can only cleaner rainwater be stored in the inner hopper.When the water that is configured to be stored in the inner hopper is face of land circulating water, and when making face of land circulating water flow into the management liquid measure, sand and gravel is deposited in this coarse sand case, thereby can in inner hopper, stores cleaner rainwater via the coarse sand case.

Description of drawings

Fig. 1 is the perspective schematic view according to the underground water storage tank of the embodiment of the invention;

Fig. 2 is the fragmentary, perspective view of the backwater material member of hopper;

Fig. 3 is at the elevation of rigid pipe under the state that links mutually as hopper backwater material;

Fig. 4 is the vertical view of the rigid pipe of hopper, and the state that rigid pipe links mutually is shown;

Fig. 5 is the viewgraph of cross-section of first flap valve of hopper, and the state that first flap valve allows water to flow is shown;

Fig. 6 is the viewgraph of cross-section of first flap valve, and the state that this flap valve forbids that water flows is shown;

Fig. 7 is the enlarged cross-sectional view of the part " A " of Fig. 1;

Fig. 8 is the decomposition view of fluid-tight plate, rigid pipe and shirt rim part (skirt member), and the rigid pipe that is set to penetrate waterproof plate is attached to waterproof plate by the shirt rim part state is shown;

Fig. 9 is the viewgraph of cross-section that the underground overall configuration of underground water storage tank wherein is set;

Figure 10 is the perspective schematic view that is provided with the underground water storage tank of perforated pipe around periphery;

Figure 11 is the viewgraph of cross-section that the underground overall configuration of underground water storage tank wherein is set;

Figure 12 is the viewgraph of cross-section of second flap valve of hopper, and the state that second flap valve allows water to flow is shown;

Figure 13 is the viewgraph of cross-section of second flap valve, and the state that this flap valve forbids that water flows is shown;

Figure 14 is the viewgraph of cross-section of another second flap valve with float of submerged, and the state that second flap valve allows water to flow is shown;

Figure 15 is the viewgraph of cross-section of second flap valve, and the state that this flap valve forbids that water flows is shown;

Figure 16 is the phantom drawing corresponding to Fig. 1 with the underground water storage tank that is embedded in interior vertical tube of ground pressure baffle and connecting piece respectively;

Figure 17 is the phantom drawing of vertical tube and connecting piece, and the state that these pipes are embedded into is shown;

Figure 18 is the perspective schematic view of underground water storage tank according to another embodiment of the present invention;

Figure 19 is the viewgraph of cross-section that the underground overall configuration of underground water storage tank wherein is set;

Figure 20 is the enlarged cross-sectional view of the part " B " in Figure 19;

Figure 21 is the viewgraph of cross-section of the flap valve of hopper, and the state that flap valve allows water to flow is shown;

Figure 22 is the viewgraph of cross-section of flap valve, and the state that flap valve forbids that water flows is shown;

Figure 23 is the viewgraph of cross-section of another flap valve with float of submerged, and the state that flap valve allows water to flow is shown;

Figure 24 is the viewgraph of cross-section of this flap valve, and the state that this flap valve forbids that water flows is shown; With

Figure 25 is the phantom drawing corresponding to Figure 18 with the underground water storage tank that is embedded in interior vertical tube of the second backwater material and connecting piece respectively.

Label declaration

10 underground water storage tanks

11 inner hoppers

12 backwater materials

13 pipe hookup mechanisms

14 first waterproof plates

23 H steel (bar-shaped steel)

Padded coaming between 24 grooves

26 ground pressure baffles

27 second waterproof plates

28 first intake pipes

29 outside water storage room

31 first flap valve

51 second intake pipes

52 second flap valve

53 perforated pipes

The 53a permeable hole

71 vertical tubes

72 connecting pieces

110 underground water storage tanks

111 inner hoppers

112 first backwater materials

114 first waterproof plates

117 second backwater materials

118 second waterproof plates

119 outside water storage room

121 intake pipes

122 flap valve

127 feed pipes

128 management liquid measures

171 vertical tubes

172 connecting pieces

The specific embodiment

To illustrate with reference to the accompanying drawings below and be used to carry out best mode of the present invention.

As shown in Figure 1, label 10 indication will be embedded in underground and be provided with the underground water storage tank of the present invention of inner hopper 11.Each inner hopper 11 is to form by the assembly that covers the backwater material 12 that obtains by a plurality of backwater materials 12 of mutual combination with the first waterproof plate 14, and the rigid pipe that plastics are made is in this embodiment as backwater material 12.As shown in Figure 2, prepare a plurality of rigid pipes, and the assembly of backwater material 12 is made by using pipe hookup mechanism 13 that a plurality of rigid pipes are linked mutually.Particularly, a plurality of rigid pipes along continuous straight runs and vertically towards the ground setting under the state that rigid pipe is parallel to each other.The extrusion that is formed by vinyl chloride is made and diameter is 200 to 800mm and length is as the rigid pipe of backwater material among this embodiment of effective work of 50 to 400cm.Diameter can increase man-hour of the task that is provided with of the rigid pipe when forming hopper 10 less than 200mm or length less than the rigid pipe of 50cm, and diameter surpasses rigid pipe that 800mm or length surpasses 400cm and makes and be difficult to transmit rigid pipe.

Shown in Fig. 2 to 4, pipe hookup mechanism 13 is provided with: fixed head 16, this fixed head 16 be fixed to rigid pipe so that this fixed head respectively perpendicular to the central axis of rigid slab 12, and the one or both ends of this fixed head 16 are outstanding from the neighboring of rigid pipe respectively; With fastener 17, the fixed head 16 that each fastener 17 is suitable for being associated is fixed to a rigid pipe, and another fixed head 16 that will be associated is fixed to another rigid pipe adjacent with this rigid pipe.Fixed head 16 is set for and penetrate the installing hole 12a that forms and fixed thereon respectively in the rigid pipe that is associated.A plurality of rigid pipes longitudinally become rectangular patterns with horizontally set in horizontal plane, and link mutually and abreast by hookup mechanism 13 respectively with predetermined interval in the horizontal direction in the mode of vertical stand-up, described interval is 50 to 200cm spacing P (Fig. 3) in this embodiment.Like this, the fixed head 16,16 that is fixed on each grade of the rigid pipe that is arranged in each corner is fixed to rigid pipe with meeting at right angles, makes two fixed heads all have an end outstanding from the neighboring of rigid pipe respectively.End for 16,16, one fixed heads of fixed head of each grade that is fixed on the rigid pipe that is arranged in each outside outstanding from the neighboring of rigid pipe with meeting at right angles, and the two ends of another fixed head are outstanding from the neighboring of rigid pipe.In addition, outstanding from the external surface of rigid pipe respectively for the two ends of 16,16, two fixed heads of fixed head that are fixed on each grade that is arranged in each inner rigid pipe with meeting at right angles.

As shown in Figure 3 and Figure 4, each fastener 17 is provided with: the fixed head 16 that web 21, this web 21 are configured to and are fixed on the rigid pipe is overlapping with another fixed head 16 that is fixed on another rigid pipe adjacent with this rigid pipe; And be used for web 21 is fixed on screw 22 on this fixed head 16 and another fixed head 16.This fixed head 16 and another fixed head 16 all are formed with a plurality of through hole 16b with uniform distances, and each web 21 all is formed with corresponding with through hole 16b respectively a plurality of intercommunicating pore 21a.Fixed head 16 and another fixed head 16 are inserted between a pair of web 21,21 with the butt end of fixed head 16 state respect to one another, thereby intercommunicating pore 21a is aimed at through hole 16b respectively.Screw 22 comprises bolt 22a and nut 22b, and bolt 22a is arranged to penetrate intercommunicating pore 21a and through hole 16b, and subsequently with nut 22b threads engage, by screw 22 fixed head 16, another fixed head 16 and a pair of web 21 being interfixed thus, thereby a fixed head 16 that will be fixed on the rigid pipe is fastening mutually with another fixed head 16 that is fixed on another rigid pipe adjacent with this rigid pipe.

Return Fig. 1, vertically stack bar-shaped steel 23 in that the underground of underground water storage tank 10 is set, and respectively applicable rigid pipe is cooperated and install and be fixed on the bar-shaped firm material 23, thereby respectively the assembly of backwater material 12 is fixed on the bar-shaped steel 23.So-called H steel 23 is in this embodiment as bar-shaped steel 23, the cross section of each H steel is H shape, and covered by the first waterproof plate 14 by the assembly that applicable rigid pipe cooperation is installed to the backwater material 12 that forms on the H steel 23, thereby constitute inner hopper 11.Here, the example of the first waterproof plate 14 comprises by the resin waterproof plate made such as synthetic rubber, polypropylene for example.The inside hopper 11 along continuous straight runs settings of a plurality of such formations, be inserted with padded coaming 24 between groove simultaneously respectively between them, the example of padded coaming 24 comprises the plate that the polystyrene that is for example foamed by foams, the vinyl chloride of foaming etc. or calendering hollw article are made between groove.In addition, ground pressure baffle 26 is arranged on the outside of inner hopper 11, and ground pressure baffle 26 is covered by the second waterproof plate 27.The example class of ground pressure baffle 26 is similar to padded coaming 24 between groove, comprise the polystyrene that for example foams by foams, the vinyl chloride of foaming etc. or the plate made of calendering hollw article, and the example of the second waterproof plate 27 comprises by the resin waterproof plate made such as synthetic rubber, polypropylene for example.

As shown in Figure 7, each bar-shaped steel 23 penetrates in the second waterproof plate 27 hole 27a that forms and the hole 14a that forms the first waterproof plate 14 in, and the cooperation bottom also through hole 27a and the hole 14a that are installed in the rigid pipe that is associated on the top of bar-shaped firm material 23.In addition, second waterproof plate 27 and the rigid pipe, and the first waterproof plate 14 closely contacts by skirt shape plate 15 respectively mutually with rigid pipe.As shown in Figure 8, each skirt shape plate 15 major diameter part 15b of all having the roughly identical small diameter portion 15a of internal diameter and beginning from small diameter portion 15a to broaden towards the end with the external diameter of the rigid pipe that is associated.Major diameter part 15b is welded on the second waterproof plate 27 or the first waterproof plate 14, and under this state, small diameter portion 15a cooperation is installed on the rigid pipe and the periphery of small diameter portion 15a is with 15c to tighten.Like this, second waterproof plate 27 and the rigid pipe, and the water of storing in the first waterproof plate 14 and the rigid pipe inside hopper 11 that utilizes skirt shape plate 15 closely to contact, and be configured to mutually respectively to prevent to be associated leak into the outside by this part.In addition, additional rigid pipe is attached in succession and cooperates the rigid pipe that is installed on the H steel 23 that is associated, thereby improves the stability of the assembly of backwater material 12.

Return Fig. 1, each ground pressure baffle 26 is being formed with groove 26a in the face of on the side of the first waterproof plate 14, and groove 26a exist in textural make win waterproof plate 14 and the second waterproof plate 27 can be between them storage of water, comprise the outside water storage room 29 that is associated of the ground pressure baffle 26 between the first waterproof plate 14 and the second waterproof plate 27 with qualification.The first waterproof plate 14 has first intake pipe 28, each first intake pipe 28 penetrate that this first waterproof plate 14 and an end are communicated with the inside hopper 11 that is associated and other end opening in the outside water storage room 29 that is associated.First intake pipe 28 is provided with (first intake pipe that Fig. 1 illustrates inside hopper 11 places that are arranged on nearside the right) around four inner hoppers 11 respectively in this embodiment.One end of each first intake pipe 28 penetrates the waterproof plate 14 of inner hopper 11 and adhesively fixing and mounted thereto, so that the butt end of this end is towards the inside of inner hopper 11.Each first intake pipe 28 is arranged near the lower end of the first waterproof plate 14 that forms inner hopper 11 sidepieces, and the other end attaching of each first intake pipe 28 has first flap valve 31.

As shown in Figure 5 and Figure 6, first flap valve 31 has tubular shell 32, the inside of this housing by basic setup therein the partition wall 32a of the heart be divided into the first Room 32b and the second Room 32c, and first flap valve 31 has the float 35 that is contained in the 32b of this first Room.The other end of first intake pipe 28 is arranged on the sidepiece of housing 32 in the mode that is communicated with the first Room 32b, and the coupling part of the other end of first intake pipe 28 and housing 32 has wall part 36, this wall part 36 is formed with a plurality of hole 36a, and rainwater can flow through these holes 36a.Partition wall 32a has the core that is formed with circular hole 32d, and the float 35 relative with this circular hole 32d be formed with Frusto-conical protuberance 35a, and this protuberance 35a is suitable for inserting among the circular hole 32d to seal this circular hole thus.Float 35 is configured to float on the water, and as shown in Figure 5, when the first Room 32b that holds float 35 is not full of rainwater, perhaps when the hydraulic pressure at the other end place of first intake pipe 28 is equal to or higher than the hydraulic pressure at this end place of first intake pipe 28, float 35 sinks in the first Room 32b, thereby protuberance 35a separates with circular hole 32d to allow water to flow to this end from the other end of first intake pipe 28 thus.Simultaneously, shown in Fig. 6, float 35 is configured to be full of water as the first Room 32b that holds float 35, and another distolateral hydraulic pressure of first intake pipe 28 reduces so that another distolateral hydraulic pressure of first intake pipe 28 when being lower than this distolateral hydraulic pressure of this first intake pipe 28, in the first Room 32b, float, thereby protuberance 35a sealing circular hole 32d flows through first intake pipe 28 to prevent water, prevents that thus the water of the inside hopper 11 that is associated from flowing out.

The following describes the process of producing this underground water storage tank 10, excavate the place that will form underground water storage tank 10 according to the required degree of depth and shape.After this, as shown in Figure 9, a plurality of H steel 23 vertically are deposited in the place of being excavated with predetermined interval, and this second waterproof plate 27 are set by making H steel 23 penetrate the second waterproof plate 27.At this moment, reinforce steel 23a and flatly extend with H steel 23 and links mutually, and the second waterproof plate 27 is arranged on the reinforcing steel 23 in the mode that is penetrated by H steel 23 respectively vertically piling.As shown in Figure 7, each H steel 23 carrying that penetrates the second waterproof plate 27 cooperate the rigid pipe that is associated mounted thereto, and the second waterproof plate 27 is closely contacted (Fig. 8) by skirt shape plate 15 with the periphery of rigid pipe by the periphery that H steel 23 penetrates.

Return Fig. 9, on the scope that forms underground water storage tank 10, ground pressure baffle 26 is laid on the core of the second waterproof plate 27 with stretching.After this, on the scope that forms inner hopper 11, the first waterproof plate 14 is arranged on the ground pressure baffle 26.When the position being set at this having applicable H steel 23, the first waterproof plate 14 is arranged to be engaged the rigid pipe that is associated that is installed on this H steel 23 and is penetrated.As shown in Figure 7, penetrate the rigid pipe of the first waterproof plate 14 by skirt shape plate 15 peripheral closely contact (Fig. 8) with the first waterproof plate 14 that is penetrated.On the first waterproof plate 14, form the assembly of backwater material 12.Rigid pipe as backwater material 12 comprises that those cooperate the rigid pipe that is installed on the H steel 23 that is associated respectively, and other rigid pipe is attached in succession by hookup mechanism 13 and cooperates the rigid pipe that is installed on the H steel 23, thereby allows the stability of the assembly of raising backwater material 12.Cooperate the rigid pipe that is installed on the H steel 23 to fill up clay or cement (Fig. 7), to prevent the cooperating rigid pipe that is installed on the H steel 23 to move respectively.

As shown in Figure 1, the assembly of backwater material 12 is covered by the first waterproof plate 14, thereby on ground pressure baffle 26, limit a plurality of inner hoppers 11 respectively, and between an inner hopper 11 and another inner hopper 11 of being adjacent, padded coaming 24 between groove is set.In addition, the part place that faces the outside water storage room 29 that is associated that each first intake pipe 28 is provided in the first waterproof plate 14 penetrates the first waterproof plate 14, and first flap valve 31 that is associated is arranged on the other end of first intake pipe 28.After this, cover the whole periphery of cooperation of inner hopper 11 and the upper surface of cooperation with ground pressure baffle 26, and wrap up ground pressure baffle 26 and a plurality of inner hoppers 11 with the second waterproof plate of setting up continuously 27.Particularly, a plurality of inner hopper 11 and the ground pressure absorbing foams body of all edge heights of the second waterproof plate 27 to center on as a whole with the second waterproof plate 27, after this end of the second waterproof plate is placed on the upper surface of cooperation of the ground pressure baffle 26 that upwards is provided with, thus a plurality of inner hopper 11 that wraps up as a whole with the second waterproof plate 27.This has just formed underground water storage tank 10.

As shown in Figure 9, Pei Zhi underground water storage tank 10 is connected with intake pipe 10d, ventilating pipe 10b, discharger 10c and gutter 18a like this, buries back hopper 10 then, thereby the upper end of intake pipe 10d, ventilating pipe 10b and gutter 18a is exposed to ground.Subsequently, the upper end of intake pipe 10d is connected respectively to the rainwater at ground place and collects irrigation canals and ditches 10e etc., and is configured to make the rainwater of collecting in the irrigation canals and ditches 10e etc. to flow into the outside 26b of water storage room of hopper 10.Ventilating pipe 10b is configured to inner air is discharged into ground outside, and flows into and via hereinafter with dewatering installation 18 discharge waters of explanation the time, make ground outside air flow into the inside of hopper 10 from intake pipe 10d when water.Discharger 10e is configured to when the water that flows into surpasses the internal capacity of hopper 10 too much water is directed to ground outside or be directed to another hopper (not shown) from hopper 10.

In addition, the position of converging of ground on the hopper 10 that is embedded in and the upper end of gutter 18a is provided with dewatering installation 18, and this dewatering installation 18 can be discharged the water of storing in the hopper 10.Dewatering installation 18 is by constituting with lower member: a plurality of gutter 18a (only illustrating among Fig. 9), and the lower end of gutter 18a penetrates the first waterproof plate 14 at inner hopper 11 places respectively and arrives the bottom of hopper; And being arranged on ground drainage pump 18b, this drainage pump 18b can draw the water in the hopper 10 from the upper end of gutter 18a.Dewatering installation 18 be configured to by with drainage pump 18b in gutter 18a suction hopper 10 water and from discharge pipe 18c discharge water, and extract the interior water of hopper 10 from the outside.

In this underground water storage tank 10, ground pressure baffle 26 is arranged on inner hopper 11 outsides, and ground pressure baffle 26 is covered by the second waterproof plate 27, feasible being applied on the second waterproof plate 27 and by ground pressure baffle 26 from ground pressure on every side absorbs, thereby can prevent that ground pressure is applied directly on the first waterproof plate 14.When the second waterproof plate 27 breaks because of ground pressure, still can avoid the first waterproof plate 14 to break even this makes, thereby prevent that effectively the water of storing in the inner hopper 11 from leaking into the outside.In addition, rigid pipe is compared with the backwater material that comprises sand, gravel, rubble etc. as the backwater material is feasible, the take ratio of backwater material 12 in the inner space of inner hopper 11 reduces.Here, prepare a large amount of rigid pipe 2 by extrusion modling, therefore rigid pipe is more cheap, and rigid pipe is provided at predetermined intervals in the horizontal direction and links mutually by hookup mechanism 13, thus the quantity that can reduce employed rigid pipe to avoid because the increase of the quantity of employed rigid pipe makes the cost per unit increase.

In addition, the assembly of backwater material is fixed on and is deposited on the underground bar-shaped steel, thereby avoids assembly to collapse.This makes can assemble relatively large rigid pipe as the backwater material, thereby can increase the amount of rainfall of storing in the underground water storage tank 10.In addition, provide a plurality of inner hoppers 11, thereby even the first waterproof plate 14 at inner hopper 11 places still can prevent in another inner hopper 11 water of storing when breaking leak, the situation that the water that can avoid thus storing leaks fully.In addition, be inserted with padded coaming 24 between groove respectively between a plurality of inner hoppers 11, thereby can avoid the first waterproof plate 14 being broken owing to a plurality of inner hoppers are set.Here, between the first waterproof plate 14 and the second waterproof plate 27, limit the outside water storage room 29 that comprises ground pressure baffle 26, one end is communicated with inner hopper 11 and other end opening is arranged to penetrate the first waterproof plate 14 to first intake pipe 28 of outside water storage room 29, make this other end be respectively equipped with first flap valve 31, thereby water can be directed to outside water storage room 29, via first flap valve 31 and first intake pipe 28 water be guided respectively and is stored in a plurality of inner hopper 11 thus.

Note, although at following situation explanation the foregoing description, each inner hopper 11 promptly is set independently, and each inner hopper 11 has the gutter 18a that penetrates the first waterproof plate 14, but can the bottom of an inner hopper 11 be attached to the bottom of another the inner hopper 11 that is adjacent by communicating pipe.When a plurality of inner hoppers 11 are interconnected in this way, only provide single gutter 18a just can extract the water of storing in all inner hoppers 11 by this single gutter 18a for one in the inner hopper 11.

The underground water storage tank that is embedded with perforated pipe 53 around it has been shown among Figure 10 and Figure 11.Underground water storage tank 10 has: one or two or more second intake pipes 51, one end of each second intake pipe 51 is arranged to penetrate the second waterproof plate 27 and is communicated with the outside water storage room 29 that is associated, and the other end around the neighboring of the second waterproof plate 27 at the ground under shed; Second flap valve 52, each this second flap valve 52 is arranged on this other end of second intake pipe 51 that is associated, when being equal to or higher than the hydraulic pressure at this end place of this second intake pipe 51 with hydraulic pressure when this other end place of second intake pipe 51, allow water to flow to this end from the other end of this second intake pipe 51, and when the hydraulic pressure at this other end place of second intake pipe 51 was lower than the hydraulic pressure at this end place of this second intake pipe 51, anti-sealing flow to the other end from this end of this second intake pipe 51; And perforated pipe 53, each perforated pipe 53 is formed with a plurality of permeable hole 53a on its periphery, and is connected to second flap valve 52 that is associated and the mode that the other end is positioned on second flap valve 52 buried with an end.

In this embodiment, underground water storage tank 10 is embedded in soil that rainwater is easy to permeate for example in the sand.Each second intake pipe 51 is arranged to an end and is penetrated the second waterproof plate 27 of underground water storage tank 10 and be communicated with the outside water storage room that is associated 29, and the other end around underground water storage tank 10 at the ground under shed.In this embodiment, second intake pipe 51 is separately positioned on underground water storage tank 10 periphery places (accompanying drawing illustrates second intake pipe that is arranged on right side and left-hand face place).As Figure 12 and shown in Figure 13, the structure of each second flap valve 52 is basic identical with first flap valve 31, and each second flap valve 52 has: the partition wall 32a that tubular shell 32, the inside of this housing are substantially disposed in the center is divided into the first Room 32b and the second Room 32c; And be contained in float 35 in the 32b of this first Room.The sidepiece that second intake pipe 51 that is associated is arranged on housing 32 is sentenced just and is communicated with the first Room 32b.But,, the upstream side cylindrical portions may 52b that is communicated with the second Room 32c is set in the upper portion of housing 32 position with respect to downstream cylindrical portions may 21a symmetry.

Float 35 is configured to float on the water by this way: as shown in figure 12, when the hydraulic pressure at the other end place of second intake pipe 51 was equal to or higher than the hydraulic pressure at an end place of second intake pipe 51, float 35 sank to allow water to flow to this end from the other end of intake pipe 51; And as shown in figure 13, when the hydraulic pressure at the other end place of second intake pipe 51 was lower than the hydraulic pressure at this end place of this second intake pipe, float 35 floated and seals circular hole 32d, thereby anti-sealing flows to the other end from this end of second intake pipe 51.

As shown in Figure 10 and Figure 11, the other end of second intake pipe 51 that is arranged on the sidepiece place of underground water storage tank 10 is attached to an end of the perforated pipe 53 that is associated respectively.Each perforated pipe 53 is formed with a plurality of permeable hole 53a, and the other end is embedded in underground respectively and on the other end of second intake pipe 51.In this embodiment, the other end of perforated pipe 53 is embedded in underground near the ground on the underground water storage tank 10.Perforated pipe 53 straight lines are laid, and a plurality of perforated pipe 53 is a radiation when burying the Cheng Dangcong top underground and observing.Note, layer of gravel is set around perforated pipe 53 when burying perforated pipe 53 underground, block and be used to collect a large amount of rainwater to prevent permeable hole 53a.

Wide region water in configuration is like this collected in the underground water storage tank 10 of type, drops on ground rainwater and permeates the ground.The rainwater that permeates the ground is by the natural filtration, purification of soil.Near the water that permeates the ground applicable perforated pipe 53 and be filtered is imported into perforated pipe 53 inside by permeable hole 53a, and is imported into perforated pipe 53 interior rainwater are directed to second intake pipe 51 that is associated by perforated pipe 53 the other end.Because under the state in rainwater is not stored in underground water storage tank 10, the hydraulic pressure at the other end place of second intake pipe 51 is equal to or higher than the hydraulic pressure at this end place of second intake pipe 51, so second flap valve 52 allows water to flow to this end from the other end of second intake pipe 51, thereby the clean rainwater that perforated pipe 53 is collected is directed in the outside water storage room 29, and is directed to respectively in a plurality of inner hoppers 11 via first flap valve 31 that is associated and first intake pipe 28 from outside water storage room 29.

When the water of storing in the underground hopper 10 reaches predetermined water level, the hydraulic pressure at the other end place of each second intake pipe 51 hydraulic pressure at this end place of being lower than this second intake pipe 51 that becomes, thus second flap valve, the 51 anti-sealings that are associated flow to the other end from this end of this second intake pipe 51.This makes and water can be imported and be stored in the underground water storage tank 10 and water can not leak into the outside from second intake pipe 51, thereby water can be stored in the underground water storage tank 10 effectively.Therefore, even more in depth permeate the ground or rainwater when evaporating owing to the arid of following when the rainwater in the soil around the underground hopper 10, underground water storage tank 10 interior water can not permeate the ground yet and can not evaporate.

Note, the foregoing description is at shown in such example, promptly first flap valve 31 is separately positioned on the other end of first intake pipe 28, and second flap valve 52 is separately positioned on the other end of second intake pipe 51, but can be respectively this end that first flap valve 31 is arranged on first intake pipe 28 also, and second flap valve 52 be arranged on this end of second intake pipe 51.Yet, when second flap valve 52 is separately positioned on this end of second intake pipe 51, need an end of perforated pipe 53 to be attached to the other end of second intake pipe 51 respectively.

In addition, although the foregoing description is at shown in such example, be that rigid pipe cooperate to be installed and is fixed to and is deposited on the underground bar-shaped steel 23, be fixed on the bar-shaped steel 23 with assembly backwater material 12, but, then not necessarily to stack bar-shaped steel 23 as long as the assembly of backwater material 23 is stable.

In addition, although adopted first flap valve 31 and second flap valve 52 to have example explanation the foregoing description of natant float 35 respectively, can adopt flap valve as first flap valve 31 and second flap valve 52 with the float that is suitable for submerged.When first flap valve 31 is arranged on an end of first intake pipe 28 that is associated, when perhaps second flap valve 52 was arranged on an end of second intake pipe 51 that is associated, this was especially effective.As Figure 14 and shown in Figure 15, the situation that has second flap valve 61 of the float 65 that is suitable for submerged in an end setting of second intake pipe 51 is described typically.Using as shown in figure 14 under the situation of the float 65 that is suitable for submerged, when the first Room 62b that holds float 65 is not full of water, even perhaps be full of water and the hydraulic pressure at the other end place of second intake pipe 51 when still being equal to or greater than the hydraulic pressure at this end place of second intake pipe 51 as the first Room 62b, differential water pressures force float 65 in the first Room 62b on float, thereby the protuberance 65a of float separates with circular hole 62d to allow water to flow to this end from the other end of second intake pipe 51.Simultaneously, as shown in figure 15, when the first Room 62b that holds float 65 is full of water, and when the hydraulic pressure at the other end place of second intake pipe 51 is reduced to less than the hydraulic pressure at this end place of this second intake pipe 51, float 65 sinks in the first Room 62b, and the protuberance 65a of float sealing circular hole 62d, thereby prevent that water from flowing through second intake pipe 51.

In addition, although at such example explanation the foregoing description, be that ground pressure baffle 26 is formed with groove 26a, this groove within it storage of water to limit the outside water storage room 29 comprise the ground pressure baffle 26 between the first waterproof plate 14 and the second waterproof plate 27 thus, but also can be as shown in figure 16, be embedded in a plurality of vertical tubes 71 and be used to make these a plurality of vertical tubes 71 connecting piece 72 of binding mutually at ground pressure baffle 26, thereby obtain the outside water storage room 29 of storage of water in vertical tube 71 and connecting piece 72 respectively.In the case, hope is arranged to arrive by the other end opening of first intake pipe 28 of the first waterproof plate 14 inside of applicable vertical tube 71, and first flap valve 31 is arranged on the other end of first intake pipe 28, so that first flap valve 31 lays respectively in the vertical tube 71.

Under the situation of the underground water storage tank of Figure 16, after forming inner hopper 11, vertical tube 71 and connecting piece 72 are respectively around inner hopper 11 longitudinally and laterally assembling.After this, opening is to the inside of applicable vertical tube 71 respectively for the other end of first intake pipe 28 by the first waterproof plate 14, and first flap valve 31 is separately positioned on the other end of first intake pipe 28.In addition, be positioned under the state of vertical tube 71 at first flap valve 31, vertical tube 71 and connecting piece 72 are embedded in the ground pressure baffle 26.Figure 17 is illustrated in the vertical tube 71 that embeds under the situation that the polystyrene that ground pressure baffle 26 for example foams by foams, the vinyl chloride of foaming etc. or calendering hollw article make and the state of connecting piece 72.Figure 17 illustrates such example, wherein with the ground pressure baffle 26 of multiple shape mutually combination so that within it with vertical tube 71 and connecting piece 72 embeddings, thereby ground pressure baffle 26 is arranged on applicable inner hopper 11 outsides.Return Figure 16, subsequently intake pipe 10d is connected to vertical tube 71 or connecting piece 72, and wrap up ground pressure baffle 26 and a plurality of inner hoppers 11, thereby obtain underground water storage tank 10 with the second waterproof plate of setting up continuously 27.This underground water storage tank 10 can be by water being directed to respectively in vertical tube 71 and the connecting piece 72 and storage of water reliably in the water storage room 29 externally.

Below an alternative embodiment of the invention will be described with reference to the accompanying drawings.

Be embedded in underground shown in Figure 18 and 19 and have the underground water storage tank of the present invention 110 of inner hopper 111.Inner hopper 111 is to form by the assembly that covers by making up 112 acquisitions of a plurality of first backwater materials with the first waterproof plate 114.The molded plastics body that obtains by mould is used as the first backwater material 112 in this embodiment.Each comprises that the first backwater material 112 of molded plastics body all forms butt four arris tapers, and longitudinally is layered on another with horizontally set and one, thereby obtains the assembly of the first backwater material 112.Simultaneously, the first waterproof plate 114 that is used to cover the first backwater material 112 is waterproof plates of making by based on synthetic rubber, based on the material of synthetic resin etc., and two surfaces are covered to protect by non-woven fabric respectively usually.

A plurality of inner hoppers 111 are respectively via the 117 along continuous straight runs settings of the second backwater material, and promptly in Figure 18, four hoppers altogether that comprise two and two inner hoppers 111 longitudinally and horizontally set.Inner hopper 111 is to form like this: the first waterproof plate 114 is arranged on the position of being excavated; The first backwater material 112 longitudinally and laterally and up and down is set to obtain assembly thus; After this raise the periphery of the first waterproof plate 114 with the periphery of the first waterproof plate 114 around the assembly of the first backwater material 112; And in addition the end of the first waterproof plate 114 is placed on the cooperation upper surface of the first backwater material 112, thereby wrap up the assembly of the first backwater material 112 with the first waterproof plate 114.Here, can not wrap up in the size of single waterproof plate under the situation of assembly of the first backwater material 112, prepare a plurality of this waterproof plates, then these waterproof plates are become one in the mutual thermal weld of edge respectively, thereby obtain the first waterproof plate 114 of assembly that size is enough to wrap up the first backwater material 112 to prevent to leak in the weld part office.In addition, inner hopper 111 is configured to storage of water in the gap between the first backwater material 112, and by communicating pipe 111a (Figure 19) four inner hoppers 111 is interconnected according to the utilization plan of water.

The second backwater material 117 is provided with around four inner hoppers 111 respectively.Use the second such backwater material 117 among this embodiment, this backwater material is respectively that the foaming coefficient is 10 to 50 times a Foamex sheet material, and its each surface all is formed with a plurality of groove 117a so that water flows through groove.The above and below of four inner hoppers 111 is respectively equipped with ground pressure baffle 115; The ground pressure baffle 115 and the second backwater material 117 that are arranged on inner hopper 111 peripheries are covered by the single second waterproof plate 118 with inner hopper 111; And between the first waterproof plate 114 that centers on inner hopper 111 and the second waterproof plate 118, limit outside water storage room 119.In this embodiment, withstand voltage and proportion is approximately 1 to 2 synthetic resin board, concrete slab, slabstone etc. and makes ground pressure baffle 115 by waterproof.In addition, the waterproof plate identical with the first waterproof plate 114 be as the second waterproof plate 118, and cover non-woven fabric respectively to protect on the both sides of the second waterproof plate.

The first waterproof plate 114 is provided with intake pipe 121 with penetrating, and an end of these intake pipes 121 is communicated with the inside hopper that is associated 111 respectively, and the other end respectively opening in the outside water storage room 119 that is associated.In this embodiment, around the hopper that is associated in four inner hoppers 111 one or two or more intake pipes 121 (Figure 18 is illustrated in an intake pipe of the inside hopper 111 places setting on nearside the right) are set respectively.The end that each intake pipe 121 is mounted to intake pipe 121 penetrates the waterproof plate 114 that is used for inner hopper 111, and after be fixed to plate 114 with the combination of adhesive or adhesive and metal tape, thereby make the inside of the butt end of this end towards the inside hopper 111 that is associated.Each intake pipe 121 is arranged near the lower end of the first waterproof plate 114 that forms inner hopper 111 sidepieces that are associated, and the other end attaching of each intake pipe has flap valve 122.

Shown in Figure 21 and 22, each flap valve 122 has: tubular shell 123, the inside of this housing by basic setup therein the partition wall 123a of the heart be divided into the first Room 123b and the second Room 123c; And be contained in float 124 in the 123b of this first Room.The other end of the intake pipe 121 that is associated is arranged on the sidepiece of housing 123 in the mode that is communicated with the first Room 123b, and the position that is connected to housing 123 at the other end of first intake pipe 121 is provided with wall part 126, and this wall part is formed with a plurality of hole 126a so that rainwater can flow through these holes.The partition wall 123a heart therein partly is formed with circular hole 123d, and the float 124 relative with this circular hole 123d be formed with Frusto-conical protuberance 124a, and this protuberance is suitable for being configured to insert among the circular hole 123d so that seal this circular hole.Float 124 is configured to float on the water in as shown in figure 21 following mode: when the first Room 123b that holds float 124 is not full of rainwater, perhaps when the water level at the other end place of intake pipe 121 is equal to or higher than the water level at this end place of intake pipe 121, float 124 sinks in the first Room 123b, thereby the protuberance 124a of float separates with circular hole 123d to allow water to flow to this end from the other end of intake pipe 121 thus.Simultaneously, as shown in figure 22, float 124 is arranged such that working as the first Room 123b that holds float 124 is full of water, and the water level at the other end place of intake pipe 121 reduces and makes when the water level at other end place of intake pipe 121 is lower than the water level at this end place of this intake pipe 121, float 124 floats in the first Room 123b, make the protuberance 124a sealing circular hole 123d of float flow through intake pipe 121, enter outside water storage room 119 thereby the water that prevents inner hopper 111 flows out to prevent water thus.

Return Figure 18 and Figure 19, underground water storage tank 110 is provided with feed pipe 127, and these feed pipes 127 are respectively applied for the water that the outside from the second waterproof plate 118 is flowed into and offer the outside water storage room 119 that is associated.As shown in figure 20, feed pipe 127 is to be arranged on the bottom of outside water storage room 119 respectively obliquely and along the perforated pipe of horizontal expansion, each feed pipe 127 is formed with a plurality of aperture 127a at an upper portion thereof.In this embodiment, make the pipe that is made of resin as perforated pipe 127, the pipe that each resin is made has 50 to 200mm internal diameter according to the scale of hopper 110, and forming a plurality of diameters at an upper portion thereof respectively and be 10 to 30mm aperture 127a, is that the perforated pipe 127 of 1m has about 5 to 10 aperture 127a thereby the formation density of aperture 127a approximately is length.

Each perforated pipe 127 is inclined to an end and is lower than the other end, and this end is connected respectively to management liquid measure 128.The angle of inclination of each perforated pipe 127 is set at and makes this other end just go up rising 5cm or more in vertical direction " b " for the every 1m on the horizontal direction " a ".Simultaneously, management liquid measure 128 is arranged on the second waterproof plate, 118 outsides, and be arranged such that the water that flows into inner hopper 111 from the outside and be stored in wherein arrives perforated pipes 127 from management liquid measure 128, and a plurality of aperture 127a that form via the place, top of perforated pipe respectively and be fed to outside water storage room 119.Return Figure 18 and 19, this embodiment is arranged such that the water that will be stored in the inner hopper 111 is face of land circulating water, and makes face of land circulating water flow into management liquid measure 128 via coarse sand case 129.

The following describes the process of producing this underground water storage tank 110, excavate the place that will form underground water storage tank 110 according to the required degree of depth and shape.After this, the second waterproof plate 118 is arranged on the excavation position.At this moment, under the situation of single waterproof plate less than required area, prepare a plurality of waterproof plates, these plates are obtained to have thus the second waterproof plate 118 of required area respectively in the mutual thermal weld of edge, this second waterproof plate can not leak owing to welding waits, and after this second waterproof plate 118 is arranged on to excavate on the position.After this, on the scope that forms underground water storage tank 110, ground pressure baffle 115 is laid on with stretching the center of the second waterproof plate 118.In addition, on the scope that forms inner hopper 111, the first waterproof plate 114 is arranged on the ground pressure baffle 115.Equally in this first waterproof plate 114, when single waterproof plate during less than required area, can prepare a plurality of waterproof plates and carry out thermal weld to bond them together by edge at plate, thereby obtain to have the first waterproof plate 114 of required area, this first waterproof plate can not leak owing to welding waits.In addition, on the first waterproof plate 114, form the assembly of the first backwater material 112, and cover the assembly of the first backwater material 112, thereby on ground pressure baffle 115, form a plurality of inner hoppers 111 with the first waterproof plate 114.In addition, an inner hopper 111 and another the inner hopper 111 that is adjacent are communicated with via communicating pipe 111a, and between this inner hopper 111 and another inner hopper 111 of being adjacent the second backwater material 117 are set.Then, intake pipe 121 is arranged to penetrate this first waterproof plate 114 at the first waterproof plate 114 of the outer circumference that is positioned at inner hopper 111, and flap valve 122 is attached to the other end of intake pipe 121 respectively.

After this, be provided as the perforated pipe of feed pipe 127 respectively along its periphery surface at the place, bottom of the neighboring of inner hopper 111.The aperture 127a that each feed pipe 127 is arranged to this feed pipe is usually located at the top of this feed pipe so that settle most of aperture along the inside hopper 111 that is associated, make a distal process of this pipe go out surpass the end of inner hopper 111 simultaneously, outstanding this end that surpasses the end of inner hopper 111 of this feed pipe 127 is lower than the other end of this pipe.In addition, ground pressure baffle 115 is arranged on the cooperation upper surface of inner hopper 111, and the second backwater material 117 is provided with around the whole periphery of inner hopper 111 respectively.After this, with the second waterproof plate of setting up continuously 118 ground pressure baffle 115 and the second backwater material 117 and a plurality of inner hopper 111 are wrapped together.Particularly, all edge heights of the second waterproof plate 118 are to center on a plurality of inner hopper 111 and the ground pressure baffle 115 and the second backwater material 117 as a whole, and after on the cooperation upper surface of the ground pressure baffle 115 that is provided with above the end of the second waterproof plate is placed on, thereby a plurality of inner hopper 111 that wraps up as a whole with the second waterproof plate 118.At this moment, the second waterproof plate 118 is being penetrated by an end of feed pipe 127 with the corresponding respectively position of feed pipe 127.

Management liquid measure 128 is arranged on the outside of the second waterproof plate 118 of parcel a plurality of inner hopper 111 as a whole, and an end of feed pipe 127 is connected to management liquid measure 128.Then, gutter 131a inserted inner hopper 111 from top, and the inner bottom part of the inside hopper 111 that is associated is arranged to arrive in the lower end of this gutter.After this, bury return pipe reason liquid measure 128 and gutter 131a so that their upper end exposes on the ground.Coarse sand case 129 is embedded in respectively near the upper end of management liquid measure 128.Coarse sand case 129 is connected respectively to the rainwater that is positioned at the place, ground and collects irrigation canals and ditches 110e etc.Coarse sand case 129 and management liquid measure 128 interconnect, and are arranged such that rainwater collects the rainwater of collecting in the irrigation canals and ditches 110e etc. and flow into management liquid measures 128 via coarse sand case 129.

In addition, as shown in figure 19, the position in the upper end of this gutter after burying returning drainage pipe 131a is provided with dewatering installation 131, and this dewatering installation can be discharged the water of storing in the inner hopper 111.Dewatering installation 131 is by constituting with lower member: gutter 131a, and the lower end of this gutter penetrates the second waterproof plate 118 at inside hopper 111 places that are associated and the first waterproof plate 114 to arrive the bottom of this hopper; Be arranged on ground drainage pump 131b, this drainage pump can be drawn the water in the hopper 110 from the upper end of gutter 131a.In addition, this dewatering installation is configured to the water of storing in the inner hopper 111 is transferred to the outside utilize by discharge the water through gutter 131a suction with drainage pump 131b from discharge pipe 131c.

In this underground water storage tank 110, also covered by the inside hopper 111 that covers 112 acquisitions of the first backwater material with the first waterproof plate 114 by the second waterproof plate 118, make and be applied on the second waterproof plate 118 from ground pressure on every side, thereby prevent that ground pressure is applied directly on the first waterproof plate 114, allow thus to prevent effectively that the water of storing in the inner hopper 111 from leaking into the outside.Particularly, because the second backwater material 117 is the Foamex sheet material that is formed with current groove 117a on the surface respectively, so from around the ground pressure that is applied on the second waterproof plate 118 comprised that the second backwater material 117 of Foamex sheet material absorbs effectively, thereby prevent effectively that ground pressure is applied on the first waterproof plate 114 and the situation that inner hopper 111 is broken.

In addition, because the surface of the second backwater material of being made by resin expanded sheet material 117 is formed with a plurality of groove 117a so that water therefrom flows through, so the backwater ratio of outside water storage room 119 is the backwater ratios of a plurality of groove 117a in the second backwater material 117.This makes and can reduce the backwater ratio by quantity that reduces groove 117a or the cross sectional area that reduces groove, thereby the backwater ratio that reduces makes when water flows into outside water storage room 29 from the outside, water level in the outside water storage room 119 raises fast, thereby the water of supplying with outside water storage room 119 can be transferred in the inner hopper 111 apace.In addition, even when in the second waterproof plate 118, forming aperture,, just can be restricted to the amount that leaks into outside water from these holes less as long as make the backwater ratio at outside water storage room 119 places less.On the other hand, be fed to from feed pipe 127 at time per unit under the situation of the water yield greater than the water yield of outside water storage room 119 from such small hole leaking to the outside, the water that major part is fed to outside water storage room 119 is directed in the inner hopper 111 by flap valve 122 and intake pipe 121 and is stored in wherein, thereby the function that can avoid occurring underground water storage tank 110 is subjected to the situation of very big loss.

In addition, compare with the backwater material that comprises sand, sandstone, rubble etc., use moulded resin member to make that as the first backwater material 112 can reduce the first backwater material 112 takies ratio in the inner space of inner hopper 111 in this embodiment, thereby can increase the amount of rainfall that to store.In addition, a plurality of inner hoppers 111 are set, thereby can increase the amount of rainfalls that can store in the underground water storage tank 110, each inner hopper 111 can easily be constructed and not needed to increase to huge size simultaneously.In addition, a plurality of inner hoppers 111 are made respectively independently, even leak thereby the first waterproof plate 114 at inner hopper 111 places still can prevent in another inner hopper 111 water of storing when breaking, the situation that the water that can avoid thus occurring storing leaks fully.

In addition, a plurality of inner hoppers 111 are set, thereby can avoid the first waterproof plate 114 being broken because of a plurality of hoppers are set via the second backwater material 117.Here, between the first waterproof plate 114 and the second waterproof plate 118, limit outside water storage room 119, and an end is communicated with inner hopper 111 and other end opening is arranged to penetrate the first waterproof plate 114 to the intake pipe 121 of outside water storage room 119, so that the other end is provided with flap valve 122, thereby water can be directed to a plurality of outside water storage room 119, via flap valve 122 and intake pipe 121 water be guided respectively and is stored in the inner hopper 111 thus.Note, join at the pipe that comprises intake pipe 121 under the situation of

waterproof plate

114 and 118 with penetrating, can by make these pipes penetrate respectively and be attached to

waterproof plate

114 and 118 and with metal tape etc. from the outside fastening they, anti-effectively sealing leaks from the bonding part.

In addition, the water that flows into from the outside is supplied in the outside water storage room 119 via management liquid measure 128 and perforated pipe 127.Therefore, even when water comprises earth, sand etc., these earth, sand etc. can be deposited in management liquid measure 128 or the perforated pipe 127.This can prevent that earth, sand etc. from gathering externally in the water storage room 119.In addition, because the water that will be stored in the inner hopper 111 is face of land circulating water, thus can collect in the coarse sand case 129 by the rainwater that will drop on the wide region, and in inner hopper 111, store relatively large water.In addition, because coarse sand case 129 and management liquid measure 128 are configured to face of land circulating water and flow into the latter via the former, so the sand and the small stone that allow to comprise in the circulating water of the face of land are deposited in the coarse sand case 129, thereby can only in inner hopper 111, store cleaner rainwater.Here, an end that is connected to the management liquid measure 128 that is associated of each perforated pipe 127 is lower than the other end, make and stop after the outside flows at water, the perforated pipe 127 that edges such as the earth of precipitation, sand tilt in the perforated pipe 127 flows, and arrives management liquid measure 128 and accumulates in the bottom of managing liquid measure 128.Therefore, the earth, sand etc. of precipitation are for example removed in bottom that can be by cleaning management liquid measure 128 by suction, thereby can realize the suitable management to underground hopper 110.

Note, although at such situation explanation the foregoing description, promptly the bottom of an inner hopper 111 is attached to the bottom of another the inner hopper 111 that is adjacent respectively via communicating pipe 111a, but can make inner hopper 111 independent, and the mode that penetrates the first waterproof plate 114 with each this gutter provide gutter 131a respectively for inner hopper 111.Like this, when making a plurality of inner hopper 111 independent,, the first waterproof plate 114 at inner hopper 111 places can prevent that still water of storing in another inner hopper 111 from leaking even breaking, thus the situation that the water that can avoid occurring storing leaks fully.

In addition, although the example that is separately positioned on the other end of intake pipe 121 at flap valve 122 illustrates the foregoing description,, flap valve 122 also can be separately positioned on this end of intake pipe 121.

In addition, although adopted each flap valve 122 all to have example explanation the foregoing description of natant float 124, can adopt the flap valve that has the float that is suitable for submerged respectively as flap valve 122.This is especially effective when flap valve 122 is separately positioned on an end of intake pipe 121.As Figure 23 and shown in Figure 24, explanation provides the situation of the float 165 that is suitable for submerged typically.Using as shown in figure 23 under the situation of the float 165 that is suitable for submerged, when the first Room 162b that holds float 165 is not full of water, even perhaps be full of water and the water level at the other end place of second intake pipe 121 when still being equal to or greater than the water level at this end place of second intake pipe 121 as the first Room 162b, water-head force float 165 in the first Room 162b on float, thereby the protuberance 165a of float separates with circular hole 162d to allow water to flow to this end from the other end of second intake pipe 121.Simultaneously, as shown in figure 24, when the first Room 162b that holds float 165 is full of water, and when the water level at the other end place of second intake pipe 121 is reduced to hydraulic pressure less than the hydraulic pressure at this end place of this second intake pipe 121, float 165 sinks in the first Room 162b, and the protuberance 165a of float sealing circular hole 162d flows through second intake pipe 121 to prevent water thus.

In addition, make and its surface is formed with a plurality of groove 117a so that the second backwater material 117 explanation the foregoing descriptions that water therefrom flows through although exemplarily adopt by foamed resin material, as long as but the water that can be detained within it and flow into from feed pipe 127, then the second backwater material 117 can be sand, gravel, rubble etc., or club-shaped material of making of Circular glass pearl, resin balls and even resin, pipe etc.

In addition, although be formed with a plurality of groove 117a so that the example of the second backwater material 117 that water therefrom flows through illustrates the foregoing description at adopting on the surface, but can be as shown in figure 25, the connecting pieces 172 that are embedded in a plurality of vertical tubes 171 and are used for a plurality of vertical tubes 171 are linked mutually at the second backwater material 117, thus in a plurality of vertical tubes 171 and connecting piece 172 storage of water.In the case, wish that the other end of feed pipe 127 that an end is connected respectively to management liquid measure 128 is connected to applicable vertical tube 171, and the other end difference opening that passes the intake pipe 121 of first waterproof plate 114 settings arrives in the applicable vertical tube 171, make flap valve 122 be separately positioned on the other end of intake pipe 121, and flap valve 122 lay respectively in the vertical tube 171.

Under the situation of the underground water storage tank of Figure 25, the other end of feed pipe 127 is connected respectively to applicable vertical tube 171, thereby does not need to adopt above-mentioned perforated pipe as feed pipe 127.In addition, the water of supplying with from the outside is directed in the vertical tube 171 that constitutes outside water storage room 119 via management liquid measure 128 and feed pipe 127, and flow into inner hopper 111 from vertical tube 171 via flap valve 122 and intake pipe 121, supply with from the outside and settled water such as earth, sand wherein thereby can in inner hopper 111, store effectively.

A kind of underground water storage tank can be provided, and this hopper seldom causes water to leak, and can significantly increase the amount of the water of wherein storing, and can store than clean water therein.

Claims

1. one kind is configured to be embedded in underground water storage tank (10) underground and can storage of water, it is characterized in that this underground water storage tank comprises:

By the inside hopper (11) that the assembly that covers backwater material (12) with the first waterproof plate (14) forms, the assembly of this backwater material (12) obtains by making up a plurality of backwater materials (12) mutually;

Be arranged on the outside ground pressure baffle (26) of described inner hopper (11); And

Be used to cover the second waterproof plate (27) of described ground pressure baffle (26),

Wherein, between the described first waterproof plate (14) and the described second waterproof plate (27), limit the outside water storage room (29) that comprises described ground pressure baffle (26);

Be provided with one or two or more first intake pipes (28) that penetrate the described first waterproof plate (14), an end of each first intake pipe be communicated to described inner hopper (11) and other end opening to described outside water storage room (29); And

Described each first intake pipe (28) is provided with first flap valve (31), this first check valve configuration becomes: when the hydraulic pressure of described outside water storage room (29) is equal to or higher than hydraulic pressure described each inner hopper (11) in, allow water from described outside water storage room (29) described each inner hopper (11) inside of inflow; And when the hydraulic pressure of described outside water storage room (29) is lower than hydraulic pressure in described each inner hopper (11), stop water from the inner described outside water storage room (29) that flows into of described each inner hopper (11).

2. underground water storage tank according to claim 1, it is characterized in that, the connecting piece (72) that this underground water storage tank also comprises a plurality of vertical tubes (71) and is used for described vertical tube (71) is linked mutually, described vertical tube (71) and described connecting piece (72) are embedded in the described ground pressure baffle (26);

Described each first intake pipe (28) passes the setting of the described first waterproof plate (14), so that the described other end opening of described each first intake pipe (28) arrives the inside of an applicable vertical tube in the described vertical tube (71); And

Described first flap valve (31) is arranged on the described other end place of the described applicable vertical tube of being positioned at of described each first intake pipe (28) (71).

3. underground water storage tank according to claim 1 and 2 is characterized in that, this underground water storage tank also comprises:

One or two or more second intake pipes (51), one end of each second intake pipe is set at and penetrates the described second waterproof plate (27) and be communicated with described outside water storage room (29), and the other end around the periphery of the described second waterproof plate (27) at the ground under shed;

Be arranged on an end of described each second intake pipe (51) or second flap valve (52) of the other end, this second check valve configuration becomes: when the hydraulic pressure at the described other end place of described each second intake pipe (51) is equal to or higher than the hydraulic pressure at a described end place of described each second intake pipe (51), allow water to flow to its described end from the described other end of described each second intake pipe (51); And when the hydraulic pressure at the described other end place of described each second intake pipe (51) is lower than the hydraulic pressure at a described end place of described each second intake pipe (51), stop water to flow to its described other end from a described end of described each second intake pipe (51); And

On periphery, be formed with the perforated pipe (53) of a plurality of permeable holes (53a), this perforated pipe is buried underground by this way, promptly, one end of this perforated pipe is connected to the described other end of described each second intake pipe (51) or is connected to described second flap valve (52), and the other end of this perforated pipe is positioned at described second flap valve (52) top.

4. one kind is configured to be embedded in underground water storage tank (110) underground and can storage of water, it is characterized in that this underground water storage tank comprises:

The inside hopper (111) that comprises the first backwater material (112) that is covered by the first waterproof plate (114);

The outside water storage room (119) that between the described first waterproof plate (114) that is provided with around described inner hopper (111) and the second waterproof plate (118), limits, this outside water storage room forms by covering the second backwater material (117) that is provided with around described inner hopper (111) with the described second waterproof plate (118);

One or two or more intake pipes (121), each intake pipe are arranged to penetrate the described first waterproof plate (114), and an end of each intake pipe be communicated with described inner hopper (111) and other end opening to described outside water storage room (119);

Be arranged on the flap valve (122) that described each intake pipe (121) is located, this check valve configuration becomes: when the water level of described outside water storage room (119) is equal to or higher than water level described inner hopper (111) in, allow water from described outside water storage room (119) inflow described inner hopper (111) inside; And when the water level of described outside water storage room (119) is lower than water level in the described inner hopper (111), stop water from the inner described outside water storage room (119) that flows into of described inner hopper (111); And

Be used for and be stored in the feed pipe (127) that the interior water of described inner hopper (111) offers described outside water storage room (119) by described flap valve (122) and described each intake pipe (121).

5. underground water storage tank according to claim 4 is characterized in that, described inner hopper (111) comprises the along continuous straight runs setting and is provided with a plurality of inner hopper (111) of the second backwater material (117) therebetween; And

The described second waterproof plate (118) is set up continuously to cover described a plurality of inner hoppers (111).

6. according to claim 4 or 5 described underground water storage tanks, it is characterized in that each includes the Foamex sheet material that is formed with a plurality of current grooves (117a) on the surface the described second backwater material (117).

7. according to claim 4 or 5 described underground water storage tanks, it is characterized in that described feed pipe (127) is arranged on the bottom of described outside water storage room (119) so that a described end of described feed pipe (127) is lower than its described other end;

A described end of described feed pipe (127) is connected to the management liquid measure (128) of the outside that is arranged on the described second waterproof plate (118); And

Described management liquid measure (128) is arranged such that the water that offers described management liquid measure (128) offers described outside water storage room (119) from described management liquid measure (128) by described feed pipe (127).

8. underground water storage tank according to claim 7, it is characterized in that, the connecting piece (172) that this underground water storage tank also comprises a plurality of vertical tubes (171) and is used for described vertical tube (171) is linked mutually, described vertical tube (171) and described connecting piece (172) are embedded in the described second backwater material (117);

The described other end of described feed pipe (127) is connected to an applicable vertical tube in the described vertical tube (171);

Described each intake pipe (121) is arranged on the described first waterproof plate (114) and locates, and makes the described other end opening of described each intake pipe (121) arrive the inside of an applicable vertical tube in the described vertical tube (171); And

Described flap valve (122) is arranged on the described other end place of the described applicable vertical tube of being positioned at of described each intake pipe (121) (171).