CN111705885B

CN111705885B - Controllable slow flow sewage interception circulating structure based on sponge city construction

Info

Publication number: CN111705885B
Application number: CN202010579747.2A
Authority: CN
Inventors: 杨秉建; 杜小姣; 郑明�; 韩明江
Original assignee: Shenzhen Risheng Ecological Technology Co ltd
Current assignee: Shenzhen Risheng Ecological Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-02
Anticipated expiration: 2040-06-23
Also published as: CN111705885A

Abstract

The invention belongs to the technical field of urban construction, and particularly relates to a controllable slow flow sewage interception circulating structure based on sponge urban construction, which comprises a field rainwater pipe network for collecting rainwater in a plurality of sub-catchment areas, wherein a water outlet of the field rainwater pipe network sequentially passes through a rainwater sewage interception hanging basket device, a sewage interception circulating structure and a rainwater collection pool which are buried under the ground, an inspection well and a reuse well are arranged in the rainwater collection pool, a lifting pump is arranged in the reuse well, and recovered water in the rainwater collection pool is lifted to the ground through the lifting pump and is further purified by a purification all-in-one machine and then used for road washing or greening irrigation. According to the rainwater collecting and processing system, rainwater is purified, stored and then collected through the sewage intercepting and circulating structure and the rainwater collecting and processing pool, so that the effluent quality is improved, the pollution load of rainwater runoff in an area is reduced, and the collected rainwater and the like are used for road washing or greening irrigation; achieving the ecological effect.

Description

Controllable slow flow sewage interception circulating structure based on sponge city construction

Technical Field

The invention relates to the technical field of urban construction, in particular to a controllable slow flow sewage interception circulating structure based on sponge urban construction.

Background

The sponge city is a new generation of city rainfall flood management concept, means that the city can be like a sponge, has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, and can also be called as a water elasticity city, and in the construction of the sponge city, the construction of a sewer is the most critical part of the sponge city.

The sponge city has great significance for systematically solving the problems of rain flood damage and rainwater runoff pollutant reduction in city development. The sponge body is used as a core component in the sponge city construction process, and has an important effect on the sponge city construction. Common cavernosum has rainwater garden, grass planting ditch, green roof etc. and relevant research shows that, the material takes place to block up can directly influence its systematic stability of operation and life in the cavernosum, finally influences sponge city construction overall effect. In 1986, Lindsey et al conducted a field survey of rainwater filtration systems in Maryland, USA, and found that of the 207 sponges surveyed, about 33% failed to operate properly due to plugging, and most of these systems had only two years of working time, with the research team finding the value to rise to 50% upon subsequent review. Similar conclusions have been reported in other studies.

When current sponge city construction, when carrying out city water's circulation in its sewer, when meetting heavy rain weather, the water in the sewer often can spill over from sewer well head, the water that spills over can cause the impact to the well lid, when the well lid receives the impact, drop from the well head easily, there is the potential safety hazard, floated debris can spill over along with the water in the sewer, cause the pollution to the urban environment, thereby influence the city pleasing to the eye, the sewer circulation structure of this type of sponge city construction lacks the controllability.

Disclosure of Invention

When constructing based on current sponge city, when carrying out the circulation of city water in its sewer, when meetting heavy rain weather, the water in the sewer often can spill over from sewer well head, and the water that spills over can cause the impact to the well lid, simultaneously, influences city construction, and the sewer circulation structure of sponge city construction of this type lacks the controllability.

The invention provides a controllable slow flow sewage interception circulating structure based on sponge city construction, which comprises a field rainwater pipe network for collecting rainwater in a plurality of sub-catchment areas, wherein a water outlet of the field rainwater pipe network sequentially passes through a rainwater sewage interception hanging basket device, a sewage interception circulating structure and a rainwater collection pool which are buried under the ground, an inspection well and a reuse well are arranged in the rainwater collection pool, a lifting pump is arranged in the reuse well, and recovered water in the rainwater collection pool is lifted to the ground through the lifting pump and is further purified through a purification all-in-one machine to be used for road washing or greening irrigation.

Specifically, cut dirty circulation structure includes the sewer, the inner wall of sewer is opened there are two through-holes, and the sewer is close to the inner wall fixedly connected with mount of two through-holes, two the equal fixedly connected with coupling spring of top outer wall of mount, and the equal fixedly connected with of the other end of two coupling spring blocks the board, blocks the board and passes through hinged joint in the inner wall of through-hole, the inner wall of sewer is fixed with the drain pipe, and the bottom outer wall of drain pipe is opened there are two inlet openings, and two inlet openings are located between two blocks, the drain pipe passes through the pipeline and rainwater collecting water pool intercommunication.

Preferably, the middle part of intercepting dirty loop construction is equipped with the overflow pipe, and the overflow pipe is located the drain pipe, the frame is bred to the top outer wall fixedly connected with of sewer, and breeds the bottom outer wall fixedly connected with overflow pipe of frame, breeds the inside equidistance of frame and is equipped with green planting.

Preferably, the outer wall of the top of each intercepting plate is connected with a limiting plate through a hinge, and the other end of each limiting plate is connected with the outer wall of the drain pipe through a hinge.

Preferably, the outer wall of the drain pipe above the limiting plate is fixedly connected with a baffle, and the other end of the baffle is fixedly connected to the outer wall of the sewer.

Preferably, the outer wall that the sewer is located breed frame both ends all opens there is the waste material to collect the chamber, and the outer wall that the sewer is located two waste materials and collects the chamber top has all placed and shelters from the lid.

Preferably, the outer wall of the sewer close to the top end is provided with a collecting cavity, the inner wall of the top of the collecting cavity is fixedly connected with an inclined plate, and the inner wall of the top of the collecting cavity close to the inclined plate is connected with a fixing plate through a hinge.

Preferably, the outer wall of the fixing plate facing the sewer is connected with a connecting shaft through a bearing, the outer wall of the other side of the fixing plate is fixedly connected with a resistance spring, and the other end of the resistance spring is fixedly connected to the outer wall of the inclined plate.

Preferably, the outer wall of connecting axle equidistance fixedly connected with spacing ring, and the connecting axle is located the outer wall equidistance fixedly connected with connecting rod between every two adjacent spacing rings, the outer wall equidistance fixedly connected with solid fixed ring of every connecting rod, the outer wall equidistance fixedly connected with couple of every solid fixed ring.

Preferably, equal fixedly connected with backup pad in the top outer wall both ends of sewer, and the same rack of opposite one side outer wall fixedly connected with of two backup pads.

The beneficial effects of the invention are as follows:

1. according to the rainwater sewage intercepting hanging basket device, impurities are removed from collected rainwater through the rainwater sewage intercepting hanging basket device, the rainwater purity is improved, the effect of retaining rainwater is achieved, municipal drainage pressure is reduced, then the collected rainwater is drained into the rainwater collecting pool through the sewage intercepting circulating structure, and the rainwater is purified, stored and collected through the sewage intercepting circulating structure and the rainwater collecting pool. The purified rainwater can be used in various places, integrates the functions of rainwater collection, purification, storage and reuse, manages by regions, solves urban waterlogging during rainstorm, releases and utilizes the stored water when in need, relieves urban water, reduces the shortage of water resources, promotes the utilization of rainwater resources and ecological environment protection, and reduces the runoff external discharge of regional rainwater; on the basis of layout and longitudinal elevation design, landscape design is combined, the rainwater utilization rate is improved, the effluent water quality is improved, the pollution load of regional rainwater runoff is reduced, and collected rainwater and the like are used for road flushing or greening irrigation; achieving the ecological effect.

2. Through being provided with the interception board, connecting spring and mount, this sewer circulation system is when carrying out the mediation of water, meet heavy rain weather, the water in the sewer is filled up, the water produces the impact to the interception board, connecting spring is tensile, some water gets into the drain pipe below, get into the drain pipe through the inlet opening, thereby irrigate the green plant in the frame of breeding, alleviate the water pressure in the sewer, thereby prevent that the water from spilling over from the sewer and causing a series of destruction, and simultaneously, the rainy day is passed the back, the water yield in the sewer reduces, connecting spring drives the interception board and resets, circulated use, this loop configuration's is improved, and the setting in waste material collecting cavity makes things convenient for the staff to clear up the pollutant in the interception loop configuration more, thereby further guarantee the quality of water controllability.

2. Through being provided with limiting plate and baffle, the existence of baffle prevents that the soil in the ground from leading to the fact the jam to the interception board to guarantee that the interception board can normally work, the installation of limiting plate makes the interception board in accommodation process, and the limiting plate is spacing to the water, prevents to cause the destruction to the ground in the water infiltration ground.

3. Through being provided with connecting axle, connecting rod, solid fixed ring and couple, when the water strikes the connecting axle, the connecting axle is rotatory thereupon to make the couple collect the large-scale impurity in the water, rotatory couple collection rate is higher, borrows the impulsive force that the water descends among the device and operates, makes the device have more energy-conservation nature.

4. Through being provided with swash plate, resistance spring, fixed plate and connecting axle, when the impurity that hangs on the couple is too much, the weight of impurity makes the connecting axle to put into in the collection chamber in addition the impulsive force of water, and the staff of being convenient for collects the garbage collection in the chamber through the garbage collection chamber, and after the garbage collection was accomplished, the fixed plate on the connecting axle reset under resistance spring's drive.

5. Through being provided with backup pad and rack, backup pad and rack are installed in sewer inlet end department, block the large granule of unfiltered in to the water through the rack, prevent to cause the jam in the large granule entering sewer of unfiltered.

Drawings

Fig. 1 is a schematic structural diagram of a controllable slow flow pollutant interception circulation structure based on sponge city construction according to an embodiment of the present invention;

FIG. 2 is a schematic view of the overall structure of the sewage interception circulating structure provided by the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a schematic view of a garbage collection assembly of a controllable slow flow sewage interception circulation structure based on sponge city construction according to the present invention;

fig. 5 is a sectional view of a side structure of a shell of a controllable slow flow sewage interception circulating structure based on sponge city construction.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1

Referring to fig. 1-4, a controllable slow flow sewage interception circulating structure based on sponge city construction comprises a field rainwater pipe network 1 for collecting rainwater of a plurality of sub-catchment areas 8, wherein a water outlet of the field rainwater pipe network 1 sequentially passes through a rainwater sewage interception hanging basket device 2 buried underground, a sewage interception circulating structure 3 and a rainwater collection pool 4, an inspection well 401 and a reuse well 402 are arranged in the rainwater collection pool 4, a lifting pump 403 is arranged in the reuse well 402, recovered water in the rainwater collection pool 4 is lifted to the ground through the lifting pump 403, and is further purified by a purification integrated machine 404 and then used for road washing or greening irrigation. According to the rainwater sewage intercepting hanging basket device, impurities are removed from collected rainwater through the rainwater sewage intercepting hanging basket device, the rainwater purity is improved, the effect of retaining rainwater is achieved, municipal drainage pressure is reduced, then the collected rainwater is drained into the rainwater collecting pool through the sewage intercepting circulating structure, and the rainwater is purified, stored and collected through the sewage intercepting circulating structure and the rainwater collecting pool. The purified rainwater can be used in various places, integrates the functions of rainwater collection, purification, storage and reuse, manages by regions, solves urban waterlogging during rainstorm, releases and utilizes the stored water when in need, relieves urban water, reduces the shortage of water resources, promotes the utilization of rainwater resources and ecological environment protection, and reduces the runoff external discharge of regional rainwater; on the basis of layout and longitudinal elevation design, landscape design is combined, the rainwater utilization rate is improved, the effluent water quality is improved, the pollution load of regional rainwater runoff is reduced, and collected rainwater and the like are used for road flushing or greening irrigation; achieving the ecological effect.

In this embodiment, the plurality of sub-catchment areas 8 are preferably arranged in a dispersed manner, and finally are converged into the site rainwater pipe network 1 through a pipe network, and the site rainwater pipe network 1 collects a part of rainwater to the rainwater sewage intercepting hanging basket device 2, and the other part of rainwater is shunted to the municipal drainage pipeline. Above-mentioned rainwater cuts dirty basket device 2 of hanging is the current equipment commonly used of the serious rubbish of rainfall early pollution of interception, including hanging basket and container, through hanging the filter screen of basket, intercepts rubbish, can store rubbish simultaneously through the container and realize filtering the rainwater, realizes filtering great impurity. The decontamination integrator 404 may be connected to a road washer or a green irrigation device. The purification integrated machine 8 is a common sewage purification integrated machine device, for example, 10T \ D integrated complete set of sewage treatment device and the like, and can be buried under the ground. The rainwater collecting pool 4 collects rainwater on the roof and the ground, and is used for greening irrigation, road washing and the like after treatment. On the one hand, water resources are effectively utilized, and on the other hand, space is emptied for the collection of subsequent rainwater. The capacity of the rainwater collecting pool 5 is not less than 250m³。

The sewage interception and circulation structure 3 comprises a sewer 301, two through holes are formed on the inner wall of the sewer 301, the inner wall of the sewer 301 close to the two through holes is fixedly connected with a fixed frame 305, the outer wall of the top parts of the two fixed frames 305 are both fixedly connected with a connecting spring 306, and the other ends of the two connecting springs 306 are fixedly connected with interception plates 308, the interception plates 308 are connected with the inner wall of the through hole through hinges, the inner wall of the sewer 301 is fixed with a drain pipe 307, and the outer wall of the bottom of the drain pipe 307 is provided with two water inlet holes 304, the two water inlet holes 304 are positioned between the two interception plates 308, when the sewer 301 circulating system is used for dredging water, in heavy rain, the water in the sewer 301 is filled, the water impacts the interception plate 308, the connecting spring 306 is stretched, part of the water enters the lower part of the drain pipe 307, enters the drain pipe 307 through the water inlet hole 304, and the drain pipe 307 guides the water body into the rainwater collection pool 4. Meanwhile, the overflow pipe 313 can store water to irrigate the green plants 314 in the culture frame 312, and relieve the pressure of the water body in the sewer 301, so that the water body is prevented from overflowing from the sewer 301 to cause a series of damages. After the rainy day, the water quantity in the sewer 301 is reduced, the connecting spring 306 drives the interception plate 308 to reset, the water can be recycled, and the controllability of the circulating structure is improved.

In the present invention, the outer wall of the top of the sewer 301 is fixedly connected with a cultivation frame 312, the outer wall of the bottom of the cultivation frame 12 is fixedly connected with an overflow pipe 313, the overflow pipe 313 is located in the drain pipe 307, a controllable valve (not shown) is fixedly connected on the water delivery pipeline of the overflow pipe 313, and green plants 314 are equidistantly arranged inside the cultivation frame 312.

In the invention, the outer walls of the tops of the two interception plates 308 are both connected with the limiting plates 303 through hinges, and the other ends of the limiting plates 303 are both connected with the outer wall of the drain pipe 307 through hinges.

In the invention, the baffle 302 is fixedly connected to the outer wall of the drain pipe 307 above the limit plate 303, and the other end of the baffle 302 is fixedly connected to the outer wall of the sewer 301.

In the invention, waste collecting cavities 311 are formed in the outer walls of the sewer 301 at the two ends of the culture frame 312, and shielding covers 315 are arranged on the outer walls of the sewer 1 above the two waste collecting cavities 311.

In the invention, the outer wall of the sewer 301 close to the top end is provided with a collecting cavity 309, the inner wall of the top part of the collecting cavity 309 is fixedly connected with an inclined plate 318, and the inner wall of the top part of the collecting cavity 309 close to the inclined plate 318 is connected with a fixed plate 316 through a hinge.

In the present invention, the outer wall of the fixed plate 316 facing the lower water channel 301 is connected to the connecting shaft 310 through a bearing, and the outer wall of the fixed plate 316 on the other side is fixedly connected to a resistance spring 317, and the other end of the resistance spring 317 is fixedly connected to the outer wall of the inclined plate 318.

In the invention, the outer wall of the connecting shaft 310 is fixedly connected with the limiting rings 320 at equal intervals, the outer wall of the connecting shaft 310 between every two adjacent limiting rings 320 is fixedly connected with the connecting rods 321 at equal intervals, the outer wall of each connecting rod 321 is fixedly connected with the fixing rings 322 at equal intervals, and the outer wall of each fixing ring 322 is fixedly connected with the hooks 319 at equal intervals.

When the device is used in heavy rain, the water body in the sewer 301 is filled, the water body impacts the interception plate 308, the connecting spring 306 is stretched, part of the water body enters the lower part of the drain pipe 307 and enters the drain pipe 307 through the water inlet hole 304, so that the green plants 14 in the culture frame 312 are irrigated, the water body pressure in the sewer 301 is relieved, a series of damages caused by the overflow of the water body from the sewer 301 can be prevented, meanwhile, after the rain day passes, the water quantity in the sewer 301 is reduced, the connecting spring 306 drives the interception plate 308 to reset, the device can be recycled, the controllability of the circulating structure is improved, meanwhile, when the external water body enters the sewer 301, a large amount of garbage is easily carried, when the connecting shaft 310 is impacted by the water body, the connecting shaft 310 rotates along with the connecting shaft, so that the hook 319 collects large-sized impurities in the water body, the collection rate of the rotating hook 319 is higher, and the device is operated by the impact, make the device have more energy-conservation nature, when the impurity that hangs on couple 319 is too much, the weight of impurity and the impulsive force of water make connecting axle 310 put into and collect the chamber 309, and the staff of being convenient for collects the garbage collection in the chamber 309 through garbage collection chamber 311, and after the garbage collection was accomplished, fixed plate 316 on the connecting axle 310 resets under the drive of resistance spring 317.

Example 2

Referring to fig. 1-5, a controllable slow flow sewage interception circulating structure based on sponge city construction comprises a field rainwater pipe network 1 for collecting rainwater of a plurality of sub-catchment areas 8, wherein a water outlet of the field rainwater pipe network 1 sequentially passes through a rainwater sewage interception hanging basket device 2 buried underground, a sewage interception circulating structure 3 and a rainwater collection pool 4, an inspection well 401 and a reuse well 402 are arranged in the rainwater collection pool 4, a lifting pump 403 is arranged in the reuse well 402, recovered water in the rainwater collection pool 4 is lifted to the ground through the lifting pump 403, and is further purified by a purification integrated machine 404 and then used for road washing or greening irrigation. According to the rainwater sewage intercepting hanging basket device, impurities are removed from collected rainwater through the rainwater sewage intercepting hanging basket device, the rainwater purity is improved, the effect of retaining rainwater is achieved, municipal drainage pressure is reduced, then the collected rainwater is drained into the rainwater collecting pool through the sewage intercepting circulating structure, and the rainwater is purified, stored and collected through the sewage intercepting circulating structure and the rainwater collecting pool.

The sewage interception circulating structure 3 comprises a sewer 301, wherein two through holes are formed in the inner wall of the sewer 301, the inner wall of the sewer 301 close to the two through holes is fixedly connected with a fixed frame 305, the outer walls of the tops of the two fixed frames 305 are fixedly connected with connecting springs 306, the other ends of the two connecting springs 306 are fixedly connected with interception plates 308, the interception plates 308 are connected to the inner wall of the through holes through hinges, a drain pipe 307 is fixed on the inner wall of the sewer 301, two water inlet holes 304 are formed in the outer wall of the bottom of the drain pipe 307, the two water inlet holes 304 are located between the two interception plates 308, when the circulating system of the sewer 301 conducts dredging of water bodies, the water bodies in the sewer 301 are filled in heavy rain weather, the water bodies impact the interception plates 308, the connecting springs 306 stretch, part of the water bodies enter the lower parts of the drain pipes 307 and enter the drain pipes 307 through the water inlet holes 304, and accordingly green plants 314, alleviate the water pressure in sewer 301 to prevent that the water from spilling over from sewer 301 and causing a series of destruction, simultaneously, after rainy day, the water yield in sewer 301 reduces, and connecting spring 306 drives interception board 308 and resets, and circulated use improves this circulation structure's controllability.

In the invention, the outer wall of the top of the sewer 301 is fixedly connected with a cultivation frame 312, the outer wall of the bottom of the cultivation frame 312 is fixedly connected with an overflow pipe 313, the overflow pipe 313 is positioned in the drain pipe 307, and green plants 314 are arranged in the cultivation frame 312 at equal intervals.

In the invention, the outer walls of the sewer 301 at the two ends of the culture frame 312 are respectively provided with a waste collecting cavity 311, and the outer walls of the sewer 301 above the two waste collecting cavities 311 are respectively provided with a shielding cover 315.

In the invention, the outer wall of the sewer 301 close to the top end is provided with a collecting cavity 309, the inner wall of the top part of the collecting cavity 309 is fixedly connected with an inclined plate 318, and the inner wall of the top part of the collecting cavity 309 close to the inclined plate 18 is connected with a fixed plate 316 through a hinge.

Compare in embodiment 1, the equal fixedly connected with backup pad 323 in top outer wall both ends of sewer 301, and the same rack 324 of one side outer wall fixedly connected with relative of two backup pads 323, block the large granule of unfiltered in the water through rack 324, prevent that the large granule of unfiltered from getting into and causing the jam in sewer 1.

During the use, compare in embodiment 1, the rack 324 of sewer 301 end of intaking is to getting into the big interception such as bottle that carries in the water body in sewer 301, prevents that it from getting into and causing the jam in sewer 301.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A controllable slow flow sewage interception circulating structure based on sponge city construction is characterized by comprising a field rainwater pipe network (1) for collecting rainwater of a plurality of sub-catchment areas (8), wherein a water outlet of the field rainwater pipe network (1) sequentially penetrates through a rainwater sewage interception hanging basket device (2) buried underground, a sewage interception circulating structure (3) and a rainwater collection pool (4), an inspection well (401) and a recycling well (402) are arranged in the rainwater collection pool (4), a lifting pump (403) is arranged in the recycling well (402), recovered water in the rainwater collection pool (4) is lifted to the ground through the lifting pump (403) and is further purified through a purification all-in-one machine (404) for road washing or greening, the sewage interception circulating structure comprises a sewer (301), and two through holes are formed in the inner wall of the sewer (301), and sewer (301) are close to inner wall fixedly connected with mount (305) of two through-holes, two the equal fixedly connected with connecting spring (306) of top outer wall of mount (305), and the equal fixedly connected with interception board (308) of the other end of two connecting spring (306), interception board (308) pass through hinged joint in the inner wall of through-hole, the inner wall of sewer (301) is fixed with drain pipe (307), and the bottom outer wall of drain pipe (307) is opened there are two inlet openings (304), and two inlet openings (304) are located between two interception boards (308), drain pipe (307) are through pipeline and rainwater collection water pool intercommunication.

2. The controllable slow-flow sewage interception circulating structure based on sponge city construction according to claim 1, characterized in that an overflow pipe (313) is arranged in the middle of the sewage interception circulating structure, the overflow pipe (313) is positioned in the drain pipe (307), the top outer wall of the sewer (301) is fixedly connected with a culture frame (312), the bottom outer wall of the culture frame (312) is fixedly connected with the overflow pipe (313), and green plants (314) are equidistantly arranged inside the culture frame (312).

3. The controllable slow flow sewage interception circulating structure based on sponge city construction according to claim 1, wherein the top outer walls of the two intercepting plates (308) are both connected with a limiting plate (303) through a hinge, and the other ends of the limiting plates (303) are both connected with the outer wall of a drain pipe (307) through a hinge.

4. The controllable slow flow sewage interception circulating structure based on sponge city construction according to claim 3, wherein the outer wall of the drainage pipe (307) above the limiting plate (303) is fixedly connected with the baffle (302), and the other end of the baffle (302) is fixedly connected to the outer wall of the sewer (301).

5. The controllable slow flow sewage interception circulating structure based on sponge city construction is characterized in that the outer walls of the sewer (301) at the two ends of the cultivation frame (312) are provided with waste collecting cavities (311), and the outer walls of the sewer (301) above the two waste collecting cavities (311) are provided with shielding covers (315).

6. The controllable slow flow sewage interception circulating structure based on sponge city construction is characterized in that a collecting cavity (309) is formed in the outer wall, close to the top end, of the sewer (301), an inclined plate (318) is fixedly connected to the inner wall, close to the top end, of the collecting cavity (309), and a fixing plate (316) is connected to the inner wall, close to the top end of the inclined plate (318), of the collecting cavity (309) through a hinge.

7. The controllable slow flow sewage interception circulating structure based on the sponge city construction is characterized in that the outer wall of the fixing plate (316) facing to the sewer (301) is connected with a connecting shaft (310) through a bearing, the outer wall of the other side of the fixing plate (316) is fixedly connected with a resistance spring (317), and the other end of the resistance spring (317) is fixedly connected with the outer wall of the inclined plate (318).

8. The controllable slow flow sewage interception circulating structure based on sponge city construction according to claim 7, characterized in that the outer wall of the connecting shaft (310) is fixedly connected with limit rings (320) at equal intervals, the connecting shaft (310) is positioned between every two adjacent limit rings (320), the outer wall of each connecting shaft (321) is fixedly connected with connecting rods (321) at equal intervals, the outer wall of each connecting rod (321) is fixedly connected with fixing rings (322) at equal intervals, and the outer wall of each fixing ring (322) is fixedly connected with hooks (319) at equal intervals.

9. The controllable slow flow sewage interception circulating structure based on sponge city construction according to claim 1, characterized in that both ends of the top outer wall of said sewer (301) are fixedly connected with supporting plates (323), and the outer wall of the opposite side of the two supporting plates (323) is fixedly connected with the same net rack (324).