CN106400933A - Roof rainwater source regulating device based on sponge city concept and running method - Google Patents

Abstract

The invention discloses a roof rainwater source regulating device based on a sponge city concept and a running method, relates to the technical field of rainwater source emission reduction and water source protection, and discloses a method suitable for cleanly collecting roof rain and conserving groundwater. The roof rainwater source regulating device based on the sponge city concept comprises a flow abandoning system, a water storing system, a groundwater conserving system and a control system. When the device runs, a control unit receives signals of a liquid level switch and a sensor and controls the opening and closing state of an arc-shaped gate and a flow abandoning hole valve, and the aims of emission reduction and process control of an urban roof rainwater source are achieved. The roof rainwater source regulating device is ingenious in design and high in automation degree and can greatly avoid surface runoff flood peaks, weaken urban runoff pollution loads, save rainwater resources, conserve groundwater, easily relieve the drainage pressure of an urban pipe network, reduce the probability of floods and ensure life and property safety of people.

Description

Rain water on roof source regulation device based on sponge the idea of the city and operation method

Technical field

The present invention relates to rainwater source reduces discharging and fwaater resources protection technical field, particularly to a kind of based on sponge city reason The rain water on roof source regulation device read and operation method.

Background technology

Global shortage of water resources is related to grain security, ecological safety, Environmental security and economic security, or even life peace Entirely, it is significant problem currently urgently to be resolved hurrily.According to Ministry of Water Resources's official statistics, China's current shortage of water resources situation is very prominent Go out, only 2200 cubic metres per capita of freshwater resources amount, the only a quarter of world's per capita share, rank the 121st in the world Position, is 13, the whole world one of poorest country of water resource per capita.In recent years, whenever rainy season, " city is showed in various places city by turns See sea " scene, cause serious flood and casualties and property loss.In April, 2015, first batch of " the sponge city of China City " builds experimental city list and formally announces, and indicates that China more focuses on people's water in Process of Urban Development harmonious, by nature Approach is combined with artificial measures, on the premise of guaranteeing municipal drainage prevention waterlogging safety, realizes rainwater to greatest extent in city The accumulation in region, infiltration and purification, promote utilization and the ecological environmental protection of rainwater resource.Sponge city refers to that city being capable of picture Sponge is the same, adapting to environmental change and the reply aspect such as natural calamity has good " elastic ", water suction when rainy, retaining, Infiltration, water purification, by the water storing " release " and be used when needing.Sponge the idea of the city is focused on increasing urban runoff rainwater source The rigid constraint that head reduces discharging, is reduced discharging by source, transfers halfway and realize the optimum hydrologic cycle in city with the end measure such as regulate and store, carry High infiltration to runoff rainwater, regulate and store, purify, using and discharge capacity.Rainwater catchment system is then that source reduction of discharging is the most direct Means, are the important measures realizing rainwater efficient " storage, stagnant, use ".

Content of the invention

Goal of the invention：The technical problem to be solved is to provide a kind of rain water on roof based on sponge the idea of the city Source regulation device and operation method, overcome existing rain water on roof source emission-reduction technology device intelligence low degree, self-restraint underground In water technology, the defects such as deficiency are considered to rainwater pollution, improve rainwater catchment system efficiency, mitigate urban flooding and drainage system Pressure, cuts down urban runoff pollutional load, improves and repairs Urban Water Environment.

Technical scheme：The present invention solves a kind of rain water on roof source based on sponge the idea of the city that its technical problem is adopted Head regulation device, including control system, discarding system, water storage system and recharging groundwater system.

Described control system includes lock chamber, gates of segmental shape, free bearing, headstock gear and control unit, and lock chamber is vertically arranged simultaneously It is fixed on skin face, the upper lower wall surface of lock chamber is respectively equipped with circular water inlet and circular outlets, right side wall are provided with Rectangle delivery port, the lower end of gates of segmental shape is connected with free bearing, upper end is connected with headstock gear by steel wire rope.

Described discarding system includes early-stage rainwater stream abandoning case, floating-ball level switch, optical sensor and abandoned stream hole, initial stage Skin face is vertically arranged and be fixed on to rainwater recycling box, and the upper end of early-stage rainwater stream abandoning case side is provided with rectangle water inlet Mouth, lower end are provided with abandoned stream hole, and inlet of a rectangular conduit is connected with the rectangle delivery port of lock chamber side wall, and floating-ball level switch is suspended on Early-stage rainwater stream abandoning chamber interior wall upper right side, optical sensor is fixed on early-stage rainwater stream abandoning box outer wall face.

Described water storage system includes rainwater-collecting pipeline, storage tank, intake, overflow pipe and breather pipe, storage tank Top is provided with the water inlet of circle and overfall, side bottom righthand side are provided with intake, rainwater-collecting pipeline upper end and the lock of circle The circular outlets of room are connected, lower end is connected with the water inlet of storage tank, and, equipped with control valve, overflow pipe is by vertical section for intake Form with horizontal segment, vertical section lower end is connected with the overfall of storage tank, and the side of horizontal segment is provided with breather pipe straight up.

Described recharging groundwater system includes rainwater regulation box, recharging groundwater pipeline, cushion cap, culvert pipe and water seepage hole, Rainwater regulation box is docked with the overflow pipe of water storage system by pipeline, and recharging groundwater pipeline is vertically fixed on cushion cap, self-restraint The upper end of underground water pipeline, lower end are connected with rainwater regulation box and culvert pipe respectively, and the end of culvert pipe is provided with water seepage hole.

It is provided with single-chip microcomputer and signal converter, control unit can be received by microprogram, read in described control unit Floating-ball level switch and the signal of optical sensor transmission, and the electrically operated valve to headstock gear and abandoned stream hole sends control signal.

In the present invention, described lock chamber be shaped as stand upside down, 1/4 vertical hollow cylinder, the upper wall surface of lock chamber, right side Wall is rectangle, and the forward and backward side of lock chamber is 1/4 circle, and left side wall and lower wall surface are curvature identical curved surface and connection It is integrated.

In the present invention, described cushion cap is provided with vertical hole, and the quantity in hole is equal to described recharging groundwater pipeline with spacing Quantity and spacing.

In the present invention, described culvert pipe is located under described cushion cap and extends to outside structure foundation from all directions, The tube wall of culvert pipe is provided with the aperture of several infiltrations, and the end of culvert pipe also is provided with several water seepage holes.

Preferably, the side that described gates of segmental shape is connected with the forward and backward side of lock chamber is provided with side plate, gates of segmental shape closes When closing, side plate just inserts in the described inlet of a rectangular conduit of early-stage rainwater stream abandoning case.

Preferably, the water inlet of described each pipeline upper end of recharging groundwater pipeline raises to center successively from around, Recharging groundwater pipeline side within rainwater regulation box is provided with several apertures.

Preferably, described culvert pipe is got rusty and the good material of compressive property using corrosion-resistant, resistance to.

Preferably, described breather pipe is connected with overflow pipe and rainwater regulation and control box top.

Preferably, described recharging groundwater pipeline passes through the hole of cushion cap to be connected with culvert pipe.

20cm～30cm preferably, described cushion cap top is above the ground level.

Preferably, the tube wall of described culvert pipe is provided with the aperture of several infiltrations.

The technical scheme that the present invention provides also includes the fortune of the rain water on roof source regulation device based on sponge the idea of the city Row method, comprises the steps：

1. before non-rainfall, whole device is in original state, and gates of segmental shape is in opening, abandoned stream hole and intake It is closed；

2. at the rainfall initial stage, rain water on roof enters the water inlet of lock chamber by downpipe, logical after being stopped by gates of segmental shape Cross the inlet of a rectangular conduit that rectangle delivery port enters early-stage rainwater stream abandoning case, the rainwater in early-stage rainwater stream abandoning case begins to ramp up, float The ball float of ball liquid-level switch is gradually increasing with rainwater, when ball float rises to estimated water level, connects internal wiring and by signal It is sent to control unit, after control unit receives signal, connect headstock gear power-off gates of segmental shape, now rainwater passes through lock The circular outlets of room enter rainwater-collecting pipeline；

3. water storage system starts retaining, automatic rain water collection in storage tank, when when with heavy rainfall, with the increasing of rainfall Plus, water storage tank water level persistently rises, and after storage tank stores completely, rainwater initially enters overflow pipe, in overflow pipe and rainwater-collecting pipeline Water level synchronously rise, when water level rises to the horizontal segment of overflow pipe, rainwater initially enters rainwater regulation box, then first passes through The low position inflow water mouth of surrounding recharging groundwater pipeline flows into culvert pipe, transfers to the underground away from building；

4., in the case that rainfall is larger, the water level of rainwater regulation box is gradually increasing the low level flooding recharging groundwater pipeline Water inlet, rainwater begins to flow into time high position water inlet continues clean rainwater permeates the ground, when rainwater regulation box water level by After gradually time high position water inlet of recharging groundwater pipeline is flooded in rising, rainwater begins to flow into more high-order water inlet and continues cleaning Rainwater permeate the ground, flood water inlets at different levels, sustaining supply underground water according to this step by step；

5. when the sun shines again after the rain, the sun out after, optical sensor receives the irradiation of sunshine, and light intensity signal is transferred to Control unit, control unit starts timing by internal timer after accepting signal, when light intensity signal is little more than 8 constantly, control Unit processed sends control signal to abandoned stream hole electrically operated valve and opens abandoned stream hole, and the rainwater of early-stage rainwater stream abandoning case starts to discharge, this When the rainwater that discharges staggered rainfall when pavement runoff flood peak；

6., after the rainwater discharge in initial stage rainwater recycling box finishes, the ball float of floating-ball level switch returns to original minimum Position, internal wiring disconnects and sends a signal to control unit, and control unit connects headstock gear power supply opening gates of segmental shape, simultaneously Close the valve in abandoned stream hole, make whole device return to original state；

According to above-mentioned corresponding steps, you can realize the regulation and control of roof rain water source and the process of recharging groundwater.

Beneficial effect：The rain water on roof source regulation device based on sponge the idea of the city of the present invention and operation method, tool There is following beneficial effect：

(1) discarding system in the present invention, water storage system and recharging groundwater system effectively can reduce confluence of rainwater and sewage, subtract Drain off floodwaters pressure and municipal sewage treatment pressure in light city.

(2) rainwater that the storage tank in the present invention is collected can be used for afforesting, wash and landscape water body as good water sources, Greatly mitigate city pressure；Not only underground water pollution can be avoided, and avoids as good water sources recharge groundwater The surface collapse harm that underground water exhaustive exploitation causes.

(3) optical sensor in the present invention receives and persistently light intensity signal can be transferred to control during the irradiation of sunshine Unit processed, control unit starts timing by internal timer after accepting signal, when light intensity signal added up more than 8 hours, controls Unit starts to send control signal unlatching abandoned stream hole to abandoned stream hole electrically operated valve, and the rainwater of early-stage rainwater stream abandoning case starts to discharge, The rainwater now discharging has staggered rainfall runoff flood peak it is achieved that the effective control of rainfall runoff total amount and runoff peak value.

(4) the rainwater regulation box in the present invention can improve the rainwater head in recharging groundwater pipeline, improves in culvert pipe Rainwater infiltration speed；Recharging groundwater pipeline within rainwater regulation box from around raise successively to center, if side is provided with Dry aperture, it can be avoided that rainwater washes away to underground.

(5) breather pipe in the present invention can discharge the air being detained in water storage system and recharging groundwater system, it is to avoid Produce high pressure in device, damage pipeline or miscellaneous part.

(6) several seepage flow holes are had on the culvert pipe in the present invention, be easy to rainwater and efficiently permeate the ground in time in soil.

(7) cushion cap in the present invention can protect structure foundation, can fix recharging groundwater pipeline simultaneously.

(8) it is provided with single-chip microcomputer and signal converter in the control unit in the present invention, control unit can pass through microprogram Receive, read floating-ball level switch and the signal of optical sensor transmission, and the electrically operated valve to headstock gear and abandoned stream hole sends Control signal is it is achieved that the automation of plant running process.

Brief description

Fig. 1 is the rain water on roof source regulation device structural representation based on sponge the idea of the city of the present invention；

Fig. 2 is the lock chamber internal structure schematic diagram in Fig. 1；

Fig. 3 is the lock chamber intake-outlet structural representation in Fig. 1 or Fig. 2；

Fig. 4 is the culvert pipe structure schematic diagram in Fig. 1.

In figure：1- control system, 10- downpipe, 11- lock chamber, 111- circle water inlet, 112- circular outlets, 113- Rectangle delivery port, 12- gates of segmental shape, 121- side plate, 13- free bearing, 14- headstock gear, 15- control unit；2- discarding system, 21- Early-stage rainwater stream abandoning case, 211- inlet of a rectangular conduit, 22- floating-ball level switch, 23- optical sensor, 24- abandoned stream hole；3- retaining System, 31- rainwater-collecting pipeline, 32- storage tank, 321- water inlet, 322- overfall, 33- intake, 34- overflow pipe, 35- Breather pipe；4- recharging groundwater system, 41- rainwater regulation box, 42- recharging groundwater pipeline, 43- cushion cap, 44- culvert pipe, 45- oozes Water hole.

Specific embodiment

Below in conjunction with the accompanying drawings the present invention is further described.

As Figure 1-Figure 4, the rain water on roof source regulation device based on sponge the idea of the city of the present invention, this device bag Include control system 1, discarding system 2, water storage system 3 and recharging groundwater system 4.

Wherein, control system 1 includes lock chamber 11, gates of segmental shape 12, free bearing 13, headstock gear 14 and control unit 15, lock chamber 11 vertical arrange and be fixed on skin face, the upper lower wall surface of lock chamber 11 is respectively equipped with circular water inlet 111 and circle goes out The mouth of a river 112, right side wall are provided with rectangle delivery port 113, and the lower end of gates of segmental shape 12 is connected with free bearing 13, upper end and headstock gear 14 It is connected.

Discarding system 2 includes early-stage rainwater stream abandoning case 21, floating-ball level switch 22, optical sensor 23 and abandoned stream hole 24, Skin face is vertically arranged and be fixed on to early-stage rainwater stream abandoning case 21, and the upper end of early-stage rainwater stream abandoning case 21 side is provided with square Shape water inlet 211, lower end are provided with abandoned stream hole 24, and inlet of a rectangular conduit 211 is connected with the rectangle delivery port 113 of lock chamber 11 side wall Logical, floating-ball level switch 22 is suspended on early-stage rainwater stream abandoning case 21 inwall upper right side, and optical sensor 23 is fixed on early-stage rainwater Abandoned stream case 21 outside wall surface.

Water storage system 3 includes rainwater-collecting pipeline 31, storage tank 32, intake 33 overflow pipe 34 and breather pipe 35, water storage The top of case 32 is provided with the water inlet 321 of circle and overfall 322, side bottom righthand side are provided with the intake 33 of circle, rainwater collection Pipeline 31 upper end is connected collection with the circular outlets 112 of lock chamber 11, lower end is connected with the water inlet 321 of storage tank 32, intake 33 are made up of vertical section and horizontal segment equipped with control valve, overflow pipe 34, overfall 322 phase of vertical section lower end and storage tank 32 Even, the side of horizontal segment is provided with breather pipe 35 straight up.

Recharging groundwater system 4 includes rainwater regulation box 41, recharging groundwater pipeline 42, cushion cap 43, culvert pipe 44 and infiltration Hole 45, rainwater regulation box 41 is docked with the overflow pipe 34 of water storage system 3 by pipeline, and recharging groundwater pipeline 42 is vertically fixed on On cushion cap, the upper end of recharging groundwater pipeline 42, lower end are connected with rainwater regulation box 41 and culvert pipe 44 respectively, the end of culvert pipe 44 End is provided with water seepage hole 45.

In the present embodiment, before non-rainfall, whole device is in original state, and gates of segmental shape 12 is in opening, abandons Discharge orifice 24 and intake 33 are closed.

In the present embodiment, the rainfall initial stage, rain water on roof enters the water inlet 111 of lock chamber 11 by downpipe 10, by arc Shape gate 12 passes through, after stopping, the inlet of a rectangular conduit 211 that rectangle delivery port 113 enters early-stage rainwater stream abandoning case 21, and early-stage rainwater is abandoned Stream case 21 in rainwater begin to ramp up, the ball float of floating-ball level switch 22 is gradually increasing with rainwater, when ball float rise to estimated During water level, connect internal wiring and send a signal to control unit 15, after control unit 15 receives signal, connect headstock gear 14 power-off gates of segmental shapes 12, the now circular outlets 112 entrance rainwater-collecting pipeline 31 by lock chamber 11 for the rainwater.

In the present embodiment, when rainwater enters rainwater-collecting pipeline by the circular outlets 112 of lock chamber 11, retaining system System 3 beginning retainings, automatic rain water collection in storage tank 32, when when with heavy rainfall, with the increase of rainfall, storage tank 32 water level Persistently rise, after storage tank 32 stores completely, rainwater initially enters overflow pipe 34, in overflow pipe 34 and rainwater-collecting pipeline 31, water level is same Step rises, and when water level rises to the horizontal segment of overflow pipe 34, rainwater initially enters in rainwater regulation box 41, then first passes through two The low position inflow water mouth of end recharging groundwater pipeline 42 flows into culvert pipe 44, transfers to the underground away from building.

In the present embodiment, in the case that rainfall is larger, the water level of rainwater regulation box 41 is gradually increasing and floods self-restraint ground The low position inflow water mouth of sewer pipe 42, rainwater begins to flow into time high position water inlet continues clean rainwater permeates the ground, and works as rain The water level of water regulation box 41 is gradually increasing time high position water inlet flooding recharging groundwater pipeline 42, and rainwater begins to flow into more high-order Water inlet simultaneously continues clean rainwater permeates the ground, and floods water inlets at different levels, sustaining supply underground water according to this step by step.

In the present embodiment, when the sun shines again after the rain, the sun out after, optical sensor 23 receives the irradiation of sunshine, will Light intensity signal is transferred to control unit 15, and control unit 15 starts timing by internal timer after accepting signal, when light intensity letter Number little more than 8 constantly, control unit 15 sends control signal to abandoned stream hole 24 electrically operated valve and opens abandoned stream hole 24, early-stage rainwater The rainwater of abandoned stream case 21 start discharge, the rainwater now discharging staggered rainfall when pavement runoff flood peak.

In the present embodiment, after the rainwater discharge in initial stage rainwater recycling box 21 finishes, floating-ball level switch 22 floating Ball returns to original lowest order, and internal wiring disconnects and send a signal to control unit 15, and control unit 15 connects headstock gear 14 power supply opening gates of segmental shapes 12, simultaneously close off the valve in abandoned stream hole 24, make whole device return to original state.

The above be only the preferred embodiment of the present invention it should be pointed out that：Ordinary skill people for the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (9)

1. the rain water on roof source regulation device based on sponge the idea of the city, this device includes control system (1), discarding system (2), water storage system (3) and recharging groundwater system (4) it is characterised in that：

Described control system (1) includes lock chamber (11), gates of segmental shape (12), free bearing (13), headstock gear (14) and control unit (15), skin face is vertically arranged and be fixed on to lock chamber (11), and the upper lower wall surface of lock chamber (11) is respectively equipped with circular water inlet Mouth (111) and circular outlets (112), right side wall are provided with rectangle delivery port (113), the lower end of gates of segmental shape (12) and free bearing (13) it is connected, upper end is connected with headstock gear (14) by steel wire rope；

Described discarding system (2) include early-stage rainwater stream abandoning case (21), floating-ball level switch (22), optical sensor (23) and Abandoned stream hole (24), skin face, early-stage rainwater stream abandoning case (21) are vertically arranged and be fixed on to early-stage rainwater stream abandoning case (21) The upper end of side is provided with inlet of a rectangular conduit (211), lower end is provided with abandoned stream hole (24), inlet of a rectangular conduit (211) and lock chamber (11) side The rectangle delivery port (113) of wall is connected, and floating-ball level switch (22) is suspended on early-stage rainwater stream abandoning case (21) inwall upper right Side, optical sensor (23) is fixed on early-stage rainwater stream abandoning case (21) outside wall surface；

Described water storage system (3) include rainwater-collecting pipeline (31), storage tank (32), intake (33), overflow pipe (34) and Breather pipe (35), the top of storage tank (32) is provided with the water inlet (321) of circle and overfall (322), side bottom righthand side are provided with Circular intake (33), rainwater-collecting pipeline (31) upper end is connected with the circular outlets (112) of lock chamber (11), lower end and storage The water inlet (321) of water tank (32) is connected, and, equipped with control valve, overflow pipe (34) is by vertical section and horizontal segment group for intake (33) Become, vertical section lower end is connected with the overfall (322) of storage tank (32), and the side of horizontal segment is provided with breather pipe straight up (35)；

Described recharging groundwater system (4) includes rainwater regulation box (41), recharging groundwater pipeline (42), cushion cap (43), contains Pipe (44) and water seepage hole (45), rainwater regulation box (41) is docked with the overflow pipe (34) of water storage system (3) by pipeline, self-restraint ground Sewer pipe (42) is vertically fixed on cushion cap, the upper end of recharging groundwater pipeline (42), lower end respectively with rainwater regulation box (41) it is connected with culvert pipe (44), the end of culvert pipe (44) is provided with water seepage hole (45).

2. the rain water on roof source regulation device based on sponge the idea of the city according to claim 1 it is characterised in that：Institute The lock chamber (11) stated be shaped as stand upside down, 1/4 vertical hollow cylinder, the upper wall surface of lock chamber (11), right side wall are square Shape, the forward and backward side of lock chamber (11) is 1/4 circle, and left side wall and lower wall surface are curvature identical curved surface and connect as one.

3. the rain water on roof source regulation device based on sponge the idea of the city according to claim 1 it is characterised in that：Institute The side that the gates of segmental shape (12) stated is connected with the forward and backward side of lock chamber (11) is provided with side plate (121)；Gates of segmental shape (12) closes When closing, side plate (121) just inserts in the described inlet of a rectangular conduit (211) of early-stage rainwater stream abandoning case (21).

4. the rain water on roof source regulation device based on sponge thought according to claim 1 it is characterised in that：Described culvert The water inlet of sewer pipe (42) each pipeline upper end of increasing soil fertility raises to center successively from around, internal in rainwater regulation box (41) Recharging groundwater pipeline (42) side be provided with several apertures.

5. the rain water on roof source regulation device based on sponge the idea of the city according to claim 1 it is characterised in that：Institute The cushion cap (43) stated is provided with vertical hole, the quantity in hole and spacing be equal to described recharging groundwater pipeline (42) quantity and Away from；Cushion cap (43) top is above the ground level 20cm～30cm；Described recharging groundwater pipeline (42) pass through cushion cap (43) hole with Culvert pipe (44) is connected.

6. the rain water on roof source regulation device based on sponge the idea of the city according to claim 1 it is characterised in that：Institute The culvert pipe (44) stated is located under described cushion cap (43) and extends to outside structure foundation from all directions, the pipe of culvert pipe (44) Wall is provided with the aperture of several infiltrations, and the end of culvert pipe (44) also is provided with several water seepage holes (45)；Described culvert pipe (44) Got rusty and the good material of compressive property using corrosion-resistant, resistance to.

7. the rain water on roof source regulation device based on sponge the idea of the city according to claim 1 it is characterised in that：Institute The breather pipe (35) stated is connected with overflow pipe (34) and rainwater regulation box (41) top.

8. the rain water on roof source regulation device based on sponge the idea of the city according to claim 1 it is characterised in that：Institute It is provided with single-chip microcomputer and signal converter, control unit (15) can be received by microprogram, read in the control unit (15) stated The signal that floating-ball level switch (22) and optical sensor (23) transmit, and the motor-driven valve to headstock gear (14) and abandoned stream hole (24) Door sends control signal.

9. the full rain water on roof source regulation and control dress based on sponge the idea of the city described in a kind of any one based on claim 1 to 8 The operation method put is it is characterised in that comprise the following steps：

1. before non-rainfall, whole device is in original state, and gates of segmental shape (12) is in opening, abandoned stream hole (24) and takes The mouth of a river (33) is closed；

2. at the rainfall initial stage, rain water on roof enters the water inlet (111) of lock chamber (11) by downpipe (10), by gates of segmental shape (12) inlet of a rectangular conduit (211) of early-stage rainwater stream abandoning case (21), early-stage rainwater is entered after stopping by rectangle delivery port (113) Rainwater in abandoned stream case (21) begins to ramp up, and the ball float of floating-ball level switch (22) is gradually increasing with rainwater, when ball float rises During to estimated water level, connect internal wiring and send a signal to control unit (15), after control unit (15) receives signal, Connect headstock gear (14) power-off gates of segmental shape (12), now rainwater is entered by the circular outlets (112) of lock chamber (11) Rainwater-collecting pipeline (31)；

3. water storage system (3) starts retaining, in automatic rain water collection to storage tank (32), when when with heavy rainfall, with rainfall Increase, storage tank (32) water level persistently rises, after storage tank (32) stores completely, rainwater initially enters overflow pipe (34), overflow pipe (34) water level and in rainwater-collecting pipeline (31) synchronously rises, when water level rises to the horizontal segment of overflow pipe (34), rainwater Initially enter rainwater regulation box (41), the low position inflow water mouth then first passing through recharging groundwater pipeline (42) around flows into culvert pipe (44), transfer to the underground away from building；

4., in the case that rainfall is larger, the water level of rainwater regulation box (41) is gradually increasing and floods recharging groundwater pipeline (42) Low position inflow water mouth, rainwater begins to flow into time high position water inlet to be continued clean rainwater to permeate the ground, when rainwater regulation box (41) Water level be gradually increasing flood recharging groundwater pipeline (42) time a high position water inlet after, rainwater begins to flow into more high-order water inlet And continue clean rainwater permeates the ground, flood water inlets at different levels, sustaining supply underground water according to this step by step；

5. when the sun shines again after the rain, the sun out after, optical sensor (23) receives the irradiation of sunshine, and light intensity signal is transferred to Control unit (15), control unit (15) starts timing by internal timer after accepting signal, when light intensity signal is little more than 8 Constantly, control unit (15) sends control signal to abandoned stream hole (24) electrically operated valve and opens abandoned stream hole (24), early-stage rainwater stream abandoning The rainwater of case (21) start discharge, the rainwater now discharging staggered rainfall when pavement runoff flood peak；

6., after the rainwater discharge in initial stage rainwater recycling box (21) finishes, the ball float of floating-ball level switch (22) returns to original Lowest order, internal wiring disconnects and sends a signal to control unit (15), and control unit (15) connects headstock gear (14) power supply Open gates of segmental shape (12), simultaneously close off the valve of abandoned stream hole (24), make whole device return to original state；

According to above-mentioned corresponding steps, you can realize the regulation and control of roof rain water source and the process of recharging groundwater.