Sponge city rainwater collection system

Abstract

The invention discloses a sponge city rainwater collection system, which belongs to the technical field of sponge cities, and comprises a drainage channel arranged below a road surface, a first drainage channel and a second drainage channel arranged above the drainage channel on the road surface, a gutter arranged in the drainage channel, an underground water storage well connected with the gutter, and a filter system arranged in the first drainage channel, the filtering system comprises a fixing ring, mounting plates are arranged on the two sides of the fixing ring, a first filtering plate is mounted between the mounting plates, a V-shaped water collecting plate is arranged below the first filtering plate, a drainage pipe is arranged on the V-shaped water collecting plate, a sand filtering assembly is mounted in a second drainage groove and comprises a sand washing plate and a transfer box, and a plurality of through grooves are formed in the sand washing plate. A water inlet is formed in the transfer box, a water guide pipe is connected to the drainage pipe, one end of the water guide pipe is located in the water inlet, a water outlet is formed in the transfer box, and a filter screen is installed in the water outlet. The problems that at present, rainwater entering the drainage channel has many impurities, and the quality of rainwater entering the reservoir through the drainage channel is poor are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of sponge cities, and in particular relates to a rainwater collection system for sponge cities. Background Art

[0002] The concept of sponge city originates from the imitation of urban water circulation system, which aims to enhance the permeability, water storage, water seepage and water purification of urban surface by simulating the water circulation process in nature. This design concept can effectively alleviate the problem of urban waterlogging, reduce runoff pollution and improve the utilization rate of urban water resources. With the acceleration of urbanization, traditional hard pavement and impermeable surfaces make it impossible for rainwater to penetrate effectively, exacerbating the problems of urban flood disasters and water shortage. Therefore, most of the guidance of rainwater is carried out by setting up drainage channels under the road surface. Because the rainwater washes buildings, roads, etc. in the early stage of rain, and absorbs harmful gases in the air, there are many debris in the initial rainwater runoff, and the quality of rainwater entering the reservoir through the drainage channel is poor. Summary of the invention

[0003] Based on the problems mentioned in the above background technology, the present invention provides a sponge city rainwater collection system, which is used to solve the problem that the rainwater currently entering the drainage channel has more impurities and the rainwater entering the reservoir through the drainage channel is of poor quality.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A sponge city rainwater collection system, comprising a drainage channel arranged below a road surface, wherein a first drainage trough is provided above the drainage channel on the road surface, a drainage well cover is embedded in the first drainage trough, a water diversion trough is provided in the drainage channel, the water diversion trough is connected to an underground water storage well, a filtration system is installed in the first drainage trough, the filtration system comprises a fixing ring, mounting plates are provided on both sides of the fixing ring, a first filter plate is installed between the mounting plates, a V-shaped water collecting plate is provided below the first filter plate, a drainage pipe is provided on the V-shaped water collecting plate, second drainage troughs are provided on both sides of the first drainage trough, a sand filter assembly is installed in the second drainage trough, and the sand filter assembly comprises A sand washing plate and a transfer box, wherein the sand washing plate is provided with a plurality of through grooves, and limiting grooves are provided at both ends of any of the through grooves, a push block matching the through grooves is provided at the top of the transfer box, the push block is located in the through grooves, and a hanging block corresponding to the limiting grooves is provided on the push block, a water inlet is provided on the transfer box, a water guide pipe is connected to the drain pipe, and one end of the water guide pipe is located in the water inlet, a first drainage hole is provided at the bottom of the transfer box, and the flow rate of the first drainage hole is smaller than the flow rate of the water guide pipe, a reset spring is installed between the bottom of the transfer box and the bottom of the drainage channel, and the transfer box is provided with a water outlet, the water outlet is located in the water guide channel, and a filter is installed in the water outlet.

[0006] On the basis of the above technical solution, the present invention further makes the following improvements:

[0007] Furthermore, a cushion block is provided at the bottom of the reset spring, a rubber sleeve is installed between the cushion block and the transfer box, and the reset spring is located in the rubber sleeve. Under the action of the cushion block and the rubber sleeve, the reset spring can be isolated from the inside of the drainage channel, which can prevent the reset spring from contacting rainwater, which is conducive to extending the service life of the reset spring.

[0008] Further, the first filter plate is V-shaped, a chute is provided on the first filter plate, a traction water trough is provided below the first filter plate, a second drainage hole is provided in the traction water trough, a first guide wheel and a second guide wheel are provided below the first filter plate, a traction rope is provided on the first guide wheel and the second guide wheel, a counterweight is provided at one end of the traction rope, and the other end is connected to the traction water trough, the weight of the counterweight is greater than the weight of the traction water trough, a slider is provided in the chute, a cleaning scraper is obliquely provided on the slider at a side away from the middle of the first filter plate, and the slider is fixedly connected to the traction rope. After the rainwater runoff is filtered by the first filter plate, it falls into the traction water trough, and the weight of the traction water trough increases and decreases, and the cleaning scraper is pulled to the middle of the first filter plate through the traction rope. When the rain stops or the rainwater runoff decreases, the amount of water entering the traction water trough is less than the amount of water discharged, and the weight of the traction water trough is reduced and resets under the action of the counterweight. In this process, the cleaning scraper is reset, and the debris retained on the first filter plate can be removed from the first filter plate so that the first filter plate can maintain a good filtering capacity.

[0009] Furthermore, the cleaning scraper is hinged to the slider, a limit block is installed on the slider, and the slider is located below the cleaning scraper. When the cleaning scraper is blocked during its movement toward the middle of the first filter plate, the cleaning scraper can rotate to avoid the residue on the first filter plate, thereby avoiding scraping the residue on the surface of the first filter plate to the middle of the first filter plate and affecting subsequent cleaning.

[0010] Further, a cleaning brush is installed on the cleaning scraper, and the cleaning brush is located below the cleaning scraper. The cleaning brush can cooperate with the cleaning scraper to clean the holes on the first filter plate.

[0011] Furthermore, a second filter plate is provided between the V-shaped water collecting plate and the first filter plate, the second filter plate is mounted on the mounting plate, and the second filter plate is in a V-shaped structure. The second filter plate performs secondary filtration on the accumulated water filtered by the first filter plate, so that the rainwater entering the transfer box is cleaner.

[0012] Furthermore, the mounting plate is provided with a first supporting protrusion, a second supporting protrusion and a third supporting protrusion, the first supporting protrusion is used to carry the first filter plate, the second supporting protrusion is used to carry the second filter plate, and the third supporting protrusion is used to carry the V-shaped water collecting plate. The first filter plate, the second filter plate and the V-shaped water collecting plate are easy to install and disassemble, and are convenient for maintenance and cleaning.

[0013] Beneficial effects of the present invention:

[0014] 1. When water accumulates on the road surface during rainy days, the accumulated water enters the drainage channel through the first drainage groove. The accumulated water in the first drainage groove falls after being filtered. The V-shaped water collecting plate collects part of the filtered accumulated water and introduces it into the transfer box. As the weight of the transfer box increases, the elastic force of the return spring decreases, causing the push block to descend and the through groove to be exposed. When the accumulated water on the road passes through the sand washing plate, most of the gravel can be retained in the through groove, which can prevent a large amount of gravel from entering the drainage channel, and help to delay the effective use time of the filter component when collecting rainwater;

[0015] 2. After the rain stops, as the amount of rainwater entering the transfer box decreases, the accumulated water in the transfer box that cannot flow out from the water outlet is slowly discharged from the first drainage hole. As the weight of the transfer box decreases, the transfer box returns to its original position under the action of the reset spring. The return of the push block can push the accumulated sand remaining in the through slot out to expose it to the ground, and finally it will be cleaned by the city sanitation department, which can avoid the sediment remaining in the through slot and make the sand filter component sustainable.

[0016] 3. The filtration system can filter out rainwater at the early stage of entering the drainage, improve the quality of rainwater entering the drainage channel, reduce the debris in the rainwater entering the water storage well, and reduce the need to directly open the drainage well cover to clean the filtration system, which is more convenient to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0018] Figure 1 This is a schematic diagram of the structure of a sponge city rainwater collection system in an embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the first drainage groove and the second drainage groove in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the longitudinal structure of a sponge city rainwater collection system according to an embodiment of the present invention Figure 1 ;

[0021] Figure 4 A schematic diagram of the longitudinal structure of a sponge city rainwater collection system according to an embodiment of the present invention Figure 2 ;

[0022] Figure 5It is a structural schematic diagram of the sand filter assembly after the push block is lowered in an embodiment of the present invention;

[0023] Figure 6 The longitudinal section structure of the sand filter assembly in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 7 The longitudinal section structure of the sand filter assembly in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 8 for Figure 7 A schematic diagram of the enlarged structure at A in the middle;

[0026] Fig. 9 A schematic diagram of the structure of a filtration system in an embodiment of the present invention;

[0027] Fig.10 A schematic diagram of the longitudinal structure of the filtration system in an embodiment of the present invention;

[0028] Fig.11 Schematic diagram of the longitudinal section structure of a V-shaped water collecting plate in an embodiment of the present invention;

[0029] Fig.12 for Fig.11 A schematic diagram of the enlarged structure at B in the middle;

[0030] Fig.13 This is a schematic diagram of the installation structure of the cleaning scraper in an embodiment of the present invention;

[0031] The main component symbols are described as follows:

[0032] Road surface 11, drainage channel 12, second drainage trough 13, first drainage trough 14, water diversion trough 15, sand filter assembly 2, sand washing plate 21, through groove 22, limit groove 221, transfer box 23, water inlet 232, push block 24, hanging block 241, return spring 25, cushion block 251, rubber sleeve 252, water guide pipe 26, filter screen 27, drainage manhole cover 3, fixing ring 41, first supporting protrusion 401, second supporting protrusion 402, third supporting protrusion 403, mounting plate 42, first guide wheel 421, second guide wheel 422, first filter plate 43, slide 431, traction trough 44, second filter plate 45, V-shaped water collecting plate 46, drainage pipe 461, traction rope 47, counterweight block 471, slider 48, limit block 481, cleaning scraper 482, cleaning brush 49. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0034] like Figures 1 to 9As shown, a sponge city rainwater collection system includes a drainage channel 12 arranged below a road surface 11, a first drainage groove 14 is opened above the drainage channel 12 on the road surface 11, a drainage well cover 3 is embedded in the first drainage groove 14, a water diversion groove 15 is arranged in the drainage channel 12, the water diversion groove 15 is connected to an underground water storage well, a filtering system is installed in the first drainage groove 14, and the filtering system includes a fixing ring 41, mounting plates 42 are arranged on both sides of the fixing ring 41, a first filter plate 43 is installed between the mounting plates 42, a V-shaped water collecting plate 46 is arranged below the first filter plate 43, a drainage pipe 461 is arranged on the V-shaped water collecting plate 46, second drainage grooves 13 are opened on both sides of the first drainage groove 14, and a drainage well cover 3 is installed in the second drainage groove 13 There is a sand filter component 2, which includes a sand filtering plate 21 and a transfer box 23. The edges of the first drainage trough 14 and the second drainage trough 13 are both provided with bevels. The edges of the sand filtering plate 21 and the drainage manhole cover 3 are both provided with bosses matching the bevels. When installing the sand filtering plate 21 and the drainage manhole cover 3, they can be directly placed in the first drainage trough 14 and the second drainage trough 13. A plurality of through grooves 22 are opened on the sand filtering plate 21, and limiting grooves 221 are opened at both ends of any through groove 22. A push block 24 matching the through groove 22 is provided on the top of the transfer box 23, and the push block 24 is located in the through groove 22. The transfer box 23 drives the push block 24 to descend to expose the through groove 22. When rainwater runoff flows through, most of the mud and gravel remain in the through groove 22. The push block 24 is provided with a hanging block 241 corresponding to the limit groove 221. Under the restriction of the hanging block 241, the push block 24 can be prevented from being completely separated from the through groove 22. The transfer box 23 is provided with a water inlet 232. The drain pipe 461 is connected with a water guide pipe 26. One end of the water guide pipe 26 is located in the water inlet 232. The water guide pipe 26 is a hose that can adapt to the movement of the transfer box 23. The bottom of the transfer box 23 is provided with a first drainage hole. The flow rate of the first drainage hole is smaller than the flow rate of the water guide pipe 26. When the road surface with a large rainfall forms a flow through the V-shaped water collecting plate 46 to collect rainwater at a speed greater than the speed of the first drainage hole, water can accumulate in the transfer box 23, thereby causing the transfer box 23 to drop. A reset spring 25 is installed between the bottom of the transfer box 23 and the bottom of the drainage channel 12. The transfer box 23 is provided with a water outlet. The water outlet is located in the water guide groove 15. A filter screen 27 is installed in the water outlet.

[0035] like Figure 4 As shown, a cushion block 251 is provided at the bottom of the return spring 25, a rubber sleeve 252 is installed between the cushion block 251 and the transfer box 23, and the return spring 25 is located in the rubber sleeve 252. Under the action of the cushion block 251 and the rubber sleeve 252, the return spring 25 can be isolated from the inside of the drainage channel 12, which can prevent the return spring 25 from contacting with rainwater, which is conducive to extending the service life of the return spring 25.

[0036] like Figure 10 to Figure 13As shown, the first filter plate 43 is V-shaped, a slide groove 431 is provided on the first filter plate 43, a traction water trough 44 is provided below the first filter plate 43, and a second drainage hole is provided in the traction water trough 44. The mounting plate 42 is provided with a first guide wheel 421 and a second guide wheel 422 below the first filter plate 43, and a traction rope 47 is installed on the first guide wheel 421 and the second guide wheel 422. A counterweight 471 is installed at one end of the traction rope 47, and the other end is connected to the traction water trough 44. The weight of the counterweight 471 is greater than the weight of the traction water trough 44. A slider 48 is provided in the slide groove 431, and a cleaning scraper 482 is obliquely installed on the slider 48 on the side away from the middle of the first filter plate 43, and the slider 48 is fixedly connected to the traction rope 47. After being filtered by the first filter plate 43, rainwater runoff falls into the traction trough 44. The weight of the traction trough 44 increases and decreases, and the cleaning scraper 482 is pulled to the middle of the first filter plate 43 through the traction rope 47. When the rain stops or the rainwater runoff decreases, the amount of water entering the traction trough 44 is less than the amount of water outflowing. After the weight of the traction trough 44 decreases, it is reset under the action of the counterweight block. During this process, the cleaning scraper 482 is reset, and the debris retained on the first filter plate 43 can be removed from the first filter plate 43 so that the first filter plate 43 can maintain a good filtering ability.

[0037] Specifically, the cleaning scraper 482 is hinged to the slider 48, a limit block 481 is installed on the slider 48, and the slider 48 is located below the cleaning scraper 482. When the cleaning scraper 482 moves toward the middle of the first filter plate 43, the cleaning scraper 482 is blocked, so that the cleaning scraper 482 can rotate to avoid the residue on the first filter plate 43, so as to avoid scraping the residue on the surface of the first filter plate 43 to the middle of the first filter plate 43 and affecting the subsequent cleaning.

[0038] Specifically, a cleaning brush 49 is installed on the cleaning scraper 482, and the cleaning brush 49 is located below the cleaning scraper 482. The holes on the first filter plate 43 can be cleaned by the cleaning brush 49 in cooperation with the cleaning scraper 482.

[0039] Specifically, a second filter plate 45 is provided between the V-shaped water collecting plate 46 and the first filter plate 43. The second filter plate 45 is mounted on the mounting plate 42 and has a V-shaped structure. The second filter plate 45 performs secondary filtration on the accumulated water filtered by the first filter plate 43, so that the rainwater entering the transfer box 23 is cleaner.

[0040] Specifically, the mounting plate 42 is provided with a first supporting protrusion 401, a second supporting protrusion 402 and a third supporting protrusion 403. The first supporting protrusion 401 is used to carry the first filter plate 43, the second supporting protrusion 402 is used to carry the second filter plate 45, and the third supporting protrusion 403 is used to carry the V-shaped water collecting plate 46. The first filter plate 43, the second filter plate 45 and the V-shaped water collecting plate 46 are easy to install and disassemble, and are easy to maintain and clean.

[0041] When a large amount of rainfall forms a large runoff on the road surface, the runoff carrying a large amount of sediment particles enters the filtration system from the drainage manhole cover 3, and the rainwater is filtered through the first filter plate 43. Since the first filter plate 43 is V-shaped, the filtered water will quickly flow into the traction trough 44. The weight of the traction trough 44 increases and decreases, and the cleaning scraper 482 is pulled to the middle of the first filter plate 43 through the traction rope 47. When the rain stops or the rainwater runoff decreases, the amount of water entering the traction trough 44 is less than the amount of water outflowing. After the weight of the traction trough 44 decreases, it is reset under the action of the counterweight block. In this process, the cleaning scraper 482 is reset, and the debris retained on the first filter plate 43 can be removed from the first filter plate 43, so that the first filter plate 43 can maintain a good filtering ability. The other part of the rainwater filtered by the first filter plate 43 is filtered again by the second filter plate 45, flows into the V-shaped water collecting plate 46, and finally flows into the transfer box 23. As the weight of the transfer box 23 increases, the elastic force of the return spring 25 is overcome to reduce, so that the push block 24 is lowered to expose the through groove 22, so that most of the gravel on the road surface can be retained in the through groove 22 when passing through the sand washing plate 21, which can prevent a large amount of gravel from entering the drainage channel 12 and increasing the filtration burden. After the rain stops, as the rainwater entering the transfer box decreases, the accumulated water in the transfer box 23 that cannot flow out of the water outlet is slowly discharged from the first drainage hole. As the weight of the transfer box 23 decreases, the transfer box 23 returns to its original position under the action of the return spring 25, and the push block 24 returns to its original position, which can push the accumulated sand retained in the through groove 22 out to expose it on the ground, and finally cleaned by the city sanitation.

[0042] The above is a detailed introduction to a sponge city rainwater collection system provided by the present invention. The description of the specific embodiment is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A sponge city rainwater collection system, comprising a drainage channel (12) arranged below a road surface (11), wherein the road surface (11) is provided with a first drainage groove (14) above the drainage channel (12), wherein a drainage well cover (3) is embedded in the first drainage groove (14), wherein a water diversion groove (15) is provided in the drainage channel (12), wherein the water diversion groove (15) is connected to an underground water storage well, and wherein: A filtering system is installed in the first drainage groove (14), the filtering system comprising a fixing ring (41), mounting plates (42) are provided on both sides of the fixing ring (41), a first filter plate (43) is installed between the mounting plates (42), a V-shaped water collecting plate (46) is provided below the first filter plate (43), a drainage pipe (461) is provided on the V-shaped water collecting plate (46), second drainage grooves (13) are provided on both sides of the first drainage groove (14), a sand filter assembly (2) is installed in the second drainage groove (13), the sand filter assembly (2) comprises a sand washing plate (21) and a transfer box (23), a plurality of through grooves (22) are provided on the sand washing plate (21), limiting grooves (221) are provided at both ends of any of the through grooves (22), and the top of the transfer box (23) is provided with a plurality of through grooves (22). A push block (24) matching the through groove (22) is provided at the end thereof, the push block (24) being located in the through groove (22), a hanging block (241) corresponding to the limit groove (221) being provided on the push block (24), a water inlet (232) being provided on the transfer box (23), a water guide pipe (26) being connected to the drainage pipe (461), one end of the water guide pipe (26) being located in the water inlet (232), a first drainage hole being provided at the bottom of the transfer box (23), the flow rate of the first drainage hole being smaller than the flow rate of the water guide pipe (26), a return spring (25) being installed between the bottom of the transfer box (23) and the bottom of the drainage channel (12), a water outlet being provided on the transfer box (23), the water outlet being located in the water guide groove (15), and a filter screen (27) being installed in the water outlet.

2. A sponge city rainwater collection system according to claim 1, characterized in that: A cushion block (251) is provided at the bottom of the return spring (25), a rubber sleeve (252) is installed between the cushion block (251) and the transfer box (23), and the return spring (25) is located in the rubber sleeve (252).

3. A sponge city rainwater collection system according to claim 1, characterized in that: The first filter plate (43) is V-shaped, a slide groove (431) is provided on the first filter plate (43), a traction water trough (44) is provided below the first filter plate (43), a second drainage hole is provided on the traction water trough (44), a first guide wheel (421) and a second guide wheel (422) are installed on the mounting plate (42) below the first filter plate (43), a traction rope (47) is installed on the first guide wheel (421) and the second guide wheel (422), a counterweight block (471) is installed at one end of the traction rope (47), and the other end is connected to the traction water trough (44), the weight of the counterweight block (471) is greater than the weight of the traction water trough (44), a slider (48) is provided in the slide groove (431), a cleaning scraper (482) is obliquely installed on the slider (48) at a side away from the middle of the first filter plate (43), and the slider (48) is fixedly connected to the traction rope (47).

4. A sponge city rainwater collection system according to claim 3, characterized in that: The cleaning scraper (482) is hinged to the slider (48), a limit block (481) is installed on the slider (48), and the slider (48) is located below the cleaning scraper (482).

5. A sponge city rainwater collection system according to claim 4, characterized in that: A cleaning brush (49) is mounted on the cleaning scraper (482), and the cleaning brush (49) is located below the cleaning scraper (482).

6. A sponge city rainwater collection system according to claim 5, characterized in that: A second filter plate (45) is provided between the V-shaped water collecting plate (46) and the first filter plate (43); the second filter plate (45) is mounted on the mounting plate (42); and the second filter plate (45) is in a V-shaped structure.

7. A sponge city rainwater collection system according to claim 6, characterized in that: The mounting plate (42) is provided with a first supporting protrusion (401), a second supporting protrusion (402) and a third supporting protrusion (403); the first supporting protrusion (401) is used to support the first filter plate (43); the second supporting protrusion (402) is used to support the second filter plate (45); and the third supporting protrusion (403) is used to support the V-shaped water collecting plate (46).

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