CN116025049A - Sponge is drainage structures for city with water purification function - Google Patents

Abstract

The invention is applicable to the technical field of drainage structures, and provides a sponge urban drainage structure with a water purifying function, which comprises a water purifying bin with an upper opening, wherein a grate plate is arranged at the upper opening end of the water purifying bin; the separation plate is arranged in the water purifying bin and divides the space in the water purifying bin into two parts; the space on one side of the partition plate is a filtering area, and the space on the other side of the partition plate is a water accumulation area. According to the invention, by arranging the warning mechanism and the fixing mechanism, when the blocking liquid level rises, the bottom end of the warning plate which is in a conspicuous red color faces upwards, so that a maintenance worker can conveniently know the blocking condition of the filter screen, the pressing block drives the scraping plate to move downwards, the rubber block scrapes and cleans the outer wall of the filter screen, and some impurities are pressed below the pressing block and are brought into the impurity collecting box through the cooperation of the scraping plate and the pressing block, so that after the filter screen is blocked, the filtering efficiency of the filter screen can be improved before the maintenance worker finds out the blocking condition of the filter screen, and the filter screen can be found out in time to be cleaned.

Description

Sponge is drainage structures for city with water purification function

Technical Field

The invention belongs to the technical field of drainage structures, and particularly relates to a sponge urban drainage structure with a water purifying function.

Background

The sponge city is a new generation city rain and flood management concept, which means that the city can be like a sponge, has good elasticity in the aspects of adapting to environmental changes and natural disasters caused by rainwater, and the like, and can also be called as a 'water elasticity city', the international general term is 'low influence development rainwater system construction', water is absorbed, stored water, water is permeated and purified when in raining, the stored water is released and utilized when needed, the free migration of the rainwater in the city is realized, the ecological system service is started, the water ecological infrastructure is constructed through the cross-scale construction, the water ecological infrastructure is constructed by combining various specific technologies, the sponge city core is realized, the urban heat island effect is effectively relieved, and the urban road surface is not heated any more.

Traditional sponge is drainage structure for city can generally filter the rainwater at inside setting up the filter screen, preliminary purification is carried out to the rainwater of collecting, then in long-time use, impurity in the rainwater is attached on the filter screen easily, make the filter screen block up, reduce the filtration area of filter screen, from having reduced filtration efficiency, make the rainwater overflow in the water purification case over time, maintenance personnel are difficult to clear up (need wear waterproof shoes such as rain shoes and just can be close to) near the water purification storehouse after the rainwater overflow, if can let maintenance personnel in time alert the discovery when the filter screen begins taking place to block up, thereby can be timely clear up silting impurity and filter screen, then can effectively avoid above-mentioned problem, based on this, provide a sponge is drainage structure for city with water purification function.

Disclosure of Invention

The invention provides a sponge urban drainage structure with a water purifying function, and aims to solve the problem that a filter screen is blocked and is difficult to discover in time.

The invention is realized in such a way that a sponge urban drainage structure with water purifying function comprises: the upper opening end of the water purifying bin is provided with a grate plate; the separation plate is arranged in the water purifying bin and divides the space in the water purifying bin into two parts; the space on one side of the partition plate is a filtering area, and the space on the other side of the partition plate is a water accumulation area; the through groove is arranged in the middle of the partition plate and is used for connecting the filtering area with the water accumulation area; a filter screen is fixedly arranged in the through groove; the mounting rod is fixedly connected to the bottom end of the grate plate, the bottom end of the mounting rod is welded with a guide rod, a pressing block is slidably arranged on the outer wall of the guide rod, a guide cylinder is formed on the outer wall of the pressing block, and a protruding ring is formed on the top end of the guide cylinder; the fixing mechanism is arranged at the bottom end of the mounting rod and used for limiting and fixing the guide cylinder.

Preferably, a warning mechanism is arranged between the grate plate and the pressing block, and the warning mechanism comprises a supporting shaft rotatably arranged in the grate plate; the gear is welded on the outer wall of the support shaft; the rack is meshed with one side of the outer wall of the gear; the connecting shaft is fixedly welded at the bottom end of the rack, and a supporting rod is fixedly arranged on the outer wall of the connecting shaft; the floating ball is arranged at the bottom end of the connecting shaft; and the two warning plates are fixedly arranged on the outer wall of the supporting shaft and positioned at the two ends of the gear.

Preferably, the fixing mechanism includes: the two fixing lugs are rotatably arranged at the bottom end of the mounting rod and positioned at the two ends of the guide rod, and one side of the outer wall of each fixing lug is welded with an adjusting block; the two spring shafts are welded at the bottom end of the mounting rod and respectively penetrate through the two fixing lugs, and limiting springs are sleeved on the outer walls of the two spring shafts; the scraper blade of slidable mounting in the briquetting is inside, the fixed adhesive bonding of an tip of scraper blade has the offset, another tip fixed mounting of scraper blade has two sliding shafts, and two the outer wall of sliding shaft has cup jointed reset spring.

Preferably, the bottom of water purification storehouse filtration district is connected with the drain pipe, the bottom of water purification storehouse filtration district is located the top of drain pipe is installed the bearing otter board, the inside of water purification storehouse filtration district is filled with the active carbon, the top of filtration district is provided with annotates the feed cylinder, annotate the inside top threaded connection of feed cylinder and have the cover.

Preferably, the water accumulation area bottom of the water purification bin is provided with a sundry collecting box, the bottom end of the sundry collecting box is provided with a groove body, the inner side of the groove body is slidably connected with a filter cylinder sleeved with a guide rod, the bottom end of the sundry collecting box is connected with a urgent calandria penetrating through the lower portion of the water purification box, the bottom end plate of the filter cylinder is in a solid state, the bottom end plate of the filter cylinder is provided with a sealing element at the contact position of the groove body, and the top conical surface of the filter cylinder is connected with a pressing block through a fixing frame.

Preferably, the telescopic groove for limiting and sliding the scraping plate is formed in the pressing block, the scraping plate is of a T-shaped structure, and two sliding grooves for sliding the sliding shaft are formed in one side of the inner wall of the telescopic groove.

Preferably, a vertical groove is formed in one side of the telescopic groove in the pressing block, water filtering net plates are fixedly mounted at the top end and the bottom end of the vertical groove, and the vertical groove is located between the two sliding shafts.

Preferably, the spring shaft is arc-shaped, one end of the spring shaft is provided with a limiting end block, an arc-shaped groove matched with the outer wall of the spring shaft is formed in the fixing lug, and the two adjusting blocks are arranged in an eight shape.

Preferably, a plurality of water inlet tanks are formed in the top end of the grate plate, two limit rods are symmetrically formed on one side of the partition plate at two ends of the inner wall of the grate plate, a fixing rod is fixedly mounted on one side of the inner wall of the grate plate, and the connecting shaft is slidably mounted in the fixing rod.

Preferably, the bottom end of the grate plate is fixedly provided with a protection box sleeved outside the gear and the rack, and two ends of the protection box are provided with connecting grooves for the supporting shaft to rotate.

Compared with the prior art, the embodiment of the application has the following main beneficial effects:

according to the invention, by arranging the warning mechanism and the fixing mechanism, when the blocking liquid level rises, the bottom end of the warning plate which is in a conspicuous red color faces upwards, so that a maintenance worker can conveniently know the blocking condition of the filter screen, the pressing block drives the scraping plate to move downwards, the rubber block scrapes and cleans the outer wall of the filter screen, and some impurities are pressed below the pressing block and are brought into the impurity collecting box through the cooperation of the scraping plate and the pressing block, so that after the filter screen is blocked, the filtering efficiency of the filter screen can be improved before the maintenance worker finds out the blocking condition of the filter screen, and the filter screen can be found out in time to be cleaned.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is an enlarged view of the invention at A in FIG. 1;

FIG. 3 is a schematic diagram of the connection of the warning mechanism of the present invention;

FIG. 4 is a schematic diagram of the connection of the briquette and the grate plate according to the present invention.

Fig. 5 is an enlarged view of the invention at B in fig. 4.

FIG. 6 is a schematic view of the structure of the grate plate of the present invention;

fig. 7 is a schematic view of the structure of the interior of the impurity collecting box of the present invention.

In the figure: 1. a clean water tank; 2. a grate plate; 201. a mounting rod; 202. a water inlet tank; 3. a partition plate; 301. a through groove; 4. a drain pipe; 5. a filter screen; 6. a guide rod; 7. a warning mechanism; 701. a support shaft; 702. a gear; 703. a rack; 704. a warning board; 705. a connecting shaft; 706. a floating ball; 8. briquetting; 801. a guide cylinder; 802. a protruding ring; 9. a fixing mechanism; 901. a fixed ear; 902. an adjusting block; 903. a spring shaft; 904. a limit spring; 10. a trash collection box; 11. a limit rod; 12. a supporting rod; 13. a scraper; 14. a telescopic slot; 15. a sliding shaft; 16. a glue block; 17. a return spring; 18. a protective case; 19. a fixed rod; 20. a water filtering screen plate; 21. a supporting screen plate; 22. activated carbon; 23. a material injection cylinder; 24. urgent calandria; 25. a filter cartridge.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Specifically, referring to fig. 1 to 7, an embodiment of the present invention provides a drainage structure for sponge city with water purifying function, which comprises a water purifying bin 1 with an upper opening, wherein a grate plate 2 is installed at the upper opening end of the water purifying bin 1; the partition plate 3 is arranged in the water purifying bin 1 and divides the space in the water purifying bin 1 into two parts; the space on one side of the partition plate 3 is a filtering area, and the space on the other side of the partition plate 3 is a water accumulation area; a through groove 301 which is arranged in the middle of the partition plate 3 and is used for connecting the filtering area and the water accumulation area; a filter screen 5 is fixedly arranged in the through groove 301; the mounting rod 201 is fixedly connected to the bottom end of the grate plate 2, the bottom end of the mounting rod 201 is welded with the guide rod 6, the outer wall of the guide rod 6 is slidably provided with the pressing block 8, the outer wall of the pressing block 8 is formed with the guide cylinder 801, and the top end of the guide cylinder 801 is formed with the protruding ring 802; the fixing mechanism 9 is arranged at the bottom end of the mounting rod 201 and used for limiting and fixing the guide cylinder 801; wherein the fixing mechanism 9 comprises: two fixed lugs 901 which are rotatably arranged at the bottom end of the mounting rod 201 and positioned at the two ends of the guide rod 6, and an adjusting block 902 is welded at one side of the outer wall of each fixed lug 901; two spring shafts 903 welded at the bottom end of the mounting rod 201 and penetrating through the two fixing lugs 901 respectively, and limiting springs 904 are sleeved on the outer walls of the two spring shafts 903; the spring shaft 903 is of an arc-shaped structure, one end of the spring shaft 903 is provided with a limiting end block, an arc-shaped groove matched with the outer wall of the spring shaft 903 is formed in the fixed lug 901, and two adjusting blocks 902 are arranged in an eight shape; the scraper 13 is slidably arranged in the pressing block 8, one end part of the scraper 13 is fixedly adhered with a rubber block 16, the other end part of the scraper 13 is fixedly provided with two sliding shafts 15, and the outer walls of the two sliding shafts 15 are sleeved with a reset spring 17; a warning mechanism 7 is arranged between the grate plate 2 and the pressing block 8, and the warning mechanism 7 comprises a supporting shaft 701 rotatably arranged inside the grate plate 2; a gear 702 welded to the outer wall of the support shaft 701; a rack 703 engaged with and connected to one side of the outer wall of the gear 702; the connecting shaft 705 is fixedly welded at the bottom end of the rack 703, and the supporting rod 12 is fixedly arranged on the outer wall of the connecting shaft 705; a floating ball 706 installed at the bottom end of the connecting shaft 705; and two warning plates 704 fixedly installed on the outer wall of the support shaft 701 and positioned at two ends of the gear 702; a plurality of water inlet grooves 202 are formed in the top end of the grate plate 2, and two limit rods 11 are symmetrically formed at two ends of the inner wall of the grate plate 2 and positioned at one side of the partition plate 3.

In this embodiment, can filter the rainwater at inside setting up the filter screen by traditional drainage structures for the sponge city generally, carry out preliminary purification to the rainwater of collecting, then in long-time use, the impurity in the rainwater is attached on the filter screen easily, makes the filter screen jam, reduces the filtration area of filter screen, from having reduced filtration efficiency. Therefore, this scheme sets up warning mechanism 7 and fixed establishment 9, when realizing that the emergence blocks up the liquid level and rises, be the bottom of the red warning board 704 of conspicuous upwards, the convenience overhauls maintenance personnel and knows the jam condition of filter screen 5, and briquetting 8 drives scraper blade 13 and moves down, make glue piece 16 scrape the outer wall of filter screen 5 and wipe the clearance, and press some impurity in briquetting 8's below and take into album miscellaneous incasement 10 through the cooperation of scraper blade 13 and briquetting 8, thereby can take place to block up at filter screen 5, before maintenance personnel discovers, can improve the filtration efficiency of filter screen 5, and can in time discover that filter screen 5 blocks up and need clear up.

Specifically, the outer wall top of warning board 704 in this scheme is painted green paint, and the outer wall bottom of warning board 704 is painted red paint, and when using this kind of drainage structure, the rainwater flows to the inside of clean water tank 1 along the intake groove 202 on comb board 2 top, filters great impurity through filter screen 5 after, and the rainwater that passes filter screen 5 is after the further filtration of active carbon 22 again, finally is discharged by drain pipe 4 and is collected, and heavier large granule impurity drops and deposits in the inside of collection miscellaneous case 10.

When the filter screen 5 is blocked due to the fact that impurities in the water purifying tank 1 are attached to the outer wall of the filter screen 5, rainwater is deposited in the water purifying tank 1, the water level in the water purifying tank 1 rises, the floating ball 706 floats upwards through the rising of the water level, meanwhile, the floating ball 706 pushes the connecting shaft 705 to move upwards, the connecting shaft 705 pushes the rack 703 to move upwards, the rack 703 drives the gear 702 to rotate by one hundred eighty degrees, accordingly, the gear 702 drives the supporting shaft 701 to rotate by one hundred eighty degrees, the supporting shaft 701 drives the two warning plates 704 to rotate by 108 degrees, and the bottom ends of the warning plates 704 which are in a conspicuous red color face upwards, so that maintenance staff can conveniently know the blocking condition of the filter screen 5.

Meanwhile, the connecting shaft 705 drives the supporting rod 12 to move upwards, so that the supporting rod 12 extrudes the adjusting blocks 902 upwards, simultaneously, the two adjusting blocks 902 rotate to open at two ends, the two adjusting blocks 902 drive the two fixing lugs 901 to rotate to open, so that the limiting springs 904 are stressed and contracted, simultaneously, the two fixing lugs 901 rotate to be separated from the protruding ring 802, the limiting of the protruding ring 802 is eliminated, the guide cylinder 801 slides downwards along the outer wall of the guide rod 6, the pressing block 8 moves downwards, when the pressing block 8 drives the scraping plate 13 to move downwards, the rubber block 16 moves downwards to separate from the outer wall of the lower limiting rod 11, under the action of the reset spring 17, the scraping plate 13 is pushed to move to one side close to the filter screen 5, so that the outer wall of the rubber block 16 is attached to the outer wall of the filter screen 5, and accordingly, when the pressing block 8 continuously moves downwards, the pressing block 8 drives the scraping plate 13 to scrape and clean the outer wall of the filter screen 5, and some impurities are pressed below the pressing block 8 and are brought into the impurity collection box 10 through the cooperation of the scraping plate 13 and the pressing block 8, so that after the filter screen 5 is blocked, the filter efficiency of the filter screen 5 can be found before maintenance personnel can see that the filter efficiency of the filter screen 5 is improved.

In a further preferred embodiment of the present invention, as shown in fig. 1, the bottom end of the filtering area of the water purifying bin 1 is connected with a drain pipe 4, a supporting screen 21 is installed above the drain pipe 4 at the bottom end of the filtering area of the water purifying bin 1, activated carbon 22 is filled in the filtering area of the water purifying bin 1, a material injecting cylinder 23 is arranged at the top end of the filtering area, and a cylinder cover is screwed at the top end of the interior of the material injecting cylinder 23.

In this embodiment, after the grate plate 2 is opened, the cap is screwed to separate the cap from the injection cylinder 23, so that the activated carbon 22 inside the fresh water tank 1 on the partition plate 3 side can be replaced by the injection cylinder 23, and after the replacement is completed, the cap is screwed to the top end of the injection cylinder 23.

In a further preferred embodiment of the present invention, as shown in fig. 1 and 7, the bottom of the water accumulation area of the water purifying bin 1 is provided with a tank body at the bottom end of the impurity collecting tank 10, the inner side of the tank body is slidably connected with a filter cylinder 25 sleeved with the guide rod 6, the bottom end of the impurity collecting tank 10 is connected with a urgent drain pipe 24 penetrating below the water purifying bin 1, the bottom end plate of the filter cylinder 25 is in a solid state, a sealing element is arranged at the contact position of the bottom end plate of the filter cylinder 25 and the tank body, and the top conical surface of the filter cylinder 25 is connected with the pressing block 8 through a fixing frame.

In this embodiment, in the above-mentioned briquetting 8 downwardly moving's in-process, generally be filter screen 5 jam, or when the rainfall of stormy weather increases, the drainage is untimely this moment, briquetting 8 drives cartridge filter 25 downwardly moving through fixed mount this moment, and the bottom end plate and the cell body dislocation of cartridge filter 25 this moment, and the water can be discharged through urgent calandria 24 this moment, and what needs to be explained is: the inside diameter of the top end port of the urgent drain pipe 24 is larger than the outside diameter of the filter cartridge, and the inside diameter of the port of the urgent drain pipe 24 is provided with a plurality of water tanks, so that the problem of unsmooth drainage after the bottom end of the filter cartridge 25 contacts with the inner wall of the urgent drain pipe is prevented.

In a further preferred embodiment of the present invention, as shown in fig. 2, a telescopic groove 14 for limiting sliding of the scraper 13 is provided in the press block 8, the scraper 13 has a T-shaped structure, and two sliding grooves for sliding of the sliding shaft 15 are provided on one side of the inner wall of the telescopic groove 14.

In this embodiment, initially, the pressing block 8 is located above the outer wall of the guide rod 6, the glue blocks 16 are limited on one side of the outer walls of the two limiting rods 11, so that the scraping plates 13 are contracted in the telescopic slots 14, when the pressing block 8 moves downwards, the glue blocks 16 are separated from the limiting rods 11, and under the action of the reset spring 17, the scraping plates 13 are pushed to move and reset, and meanwhile, the glue blocks 16 are contacted with the filter screen 5.

In a further preferred embodiment of the present invention, as shown in fig. 2, a vertical groove is formed in one side of the telescopic groove 14 in the press block 8, and a water filtering net plate 20 is fixedly installed at the top and bottom ends of the vertical groove, and the vertical groove is located between the two sliding shafts 15.

In this embodiment, in the downward movement process of the pressing block 8, rainwater inside the clean water tank 1 located below the pressing block 8 overflows from the vertical tank to above the pressing block 8, and is filtered by the two water filtering net plates 20, so that impurities are prevented from flowing and channeling directly from the vertical tank, and a part of rainwater overflows to above the pressing block 8 through a gap on the outer wall of the pressing block 8.

In a further preferred embodiment of the present invention, as shown in fig. 2 and 3, a fixed rod 19 is fixedly installed on one side of the inner wall of the grate plate 2, and a connecting shaft 705 is slidably installed inside the fixed rod 19; the bottom end of the grate plate 2 is fixedly provided with a protection box 18 sleeved outside the gear 702 and the rack 703, and two ends of the protection box 18 are provided with connecting grooves for the support shaft 701 to rotate.

In this embodiment, it should be noted that a cover is provided at the bottom end of the protection box 18, a rectangular slot for the rack 703 to move is provided in the cover, the connection shaft 705 is slidably mounted under the grate plate 2 through the fixing rod 19, and the gear 702 and the rack 703 are protected by the protection box 18.

It should be noted that, for simplicity of description, the foregoing embodiments are all illustrated as a series of acts, but it should be understood by those skilled in the art that the present invention is not limited by the order of acts, as some steps may be performed in other order or concurrently in accordance with the present invention. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present invention.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and such partitioning of the above-described elements may be implemented in other manners, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or communication connection shown or discussed as being between each other may be an indirect coupling or communication connection between devices or elements via some interfaces, which may be in the form of telecommunications or otherwise.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention. It will be apparent that the described embodiments are merely some, but not all, embodiments of the invention. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present invention or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present invention, which also falls within the scope of the present invention.

Claims (10)

1. Sponge is drainage structures for city with water purification function, characterized by, include:

the upper opening end of the water purifying bin is provided with a grate plate;

the separation plate is arranged in the water purifying bin and divides the space in the water purifying bin into two parts; the space on one side of the partition plate is a filtering area, and the space on the other side of the partition plate is a water accumulation area;

the through groove is arranged in the middle of the partition plate and is used for connecting the filtering area with the water accumulation area; a filter screen is fixedly arranged in the through groove;

the mounting rod is fixedly connected to the bottom end of the grate plate, the bottom end of the mounting rod is welded with a guide rod, a pressing block is slidably arranged on the outer wall of the guide rod, a guide cylinder is formed on the outer wall of the pressing block, and a protruding ring is formed on the top end of the guide cylinder;

the fixing mechanism is arranged at the bottom end of the mounting rod and used for limiting and fixing the guide cylinder.

2. The sponge urban drainage structure with water purification function as claimed in claim 1, wherein a warning mechanism is installed between the grate plate and the pressing block, and the warning mechanism comprises:

a supporting shaft rotatably installed inside the grate plate;

the gear is welded on the outer wall of the support shaft;

the rack is meshed with one side of the outer wall of the gear;

the connecting shaft is fixedly welded at the bottom end of the rack, and a supporting rod is fixedly arranged on the outer wall of the connecting shaft;

the floating ball is arranged at the bottom end of the connecting shaft; a kind of electronic device with high-pressure air-conditioning system

The two warning plates are fixedly arranged on the outer wall of the supporting shaft and positioned at the two ends of the gear.

3. A sponge urban drainage structure with water purification function as defined in claim 2, wherein said fixing means comprises:

the two fixing lugs are rotatably arranged at the bottom end of the mounting rod and positioned at the two ends of the guide rod, and one side of the outer wall of each fixing lug is welded with an adjusting block;

the two spring shafts are welded at the bottom end of the mounting rod and respectively penetrate through the two fixing lugs, and limiting springs are sleeved on the outer walls of the two spring shafts;

the scraper blade of slidable mounting in the briquetting is inside, the fixed adhesive bonding of an tip of scraper blade has the offset, another tip fixed mounting of scraper blade has two sliding shafts, and two the outer wall of sliding shaft has cup jointed reset spring.

4. The sponge urban drainage structure with a water purifying function according to claim 3, wherein the bottom end of the water purifying bin filtering area is connected with a drain pipe, a bearing screen plate is arranged above the drain pipe at the bottom end of the water purifying bin filtering area, activated carbon is filled in the water purifying bin filtering area, a material injection barrel is arranged at the top end of the filtering area, and a barrel cover is connected with the inner top end of the material injection barrel in a threaded manner.

5. The sponge urban drainage structure with water purification function according to claim 3, wherein a tank body is arranged at the bottom of a water accumulation area of the water purification bin, a filter cylinder sleeved with the guide rod is connected to the inner side of the tank body in a sliding manner, an urgent exhaust pipe penetrating to the lower part of the water purification bin is connected to the bottom end of the water purification bin, a bottom end plate of the filter cylinder is in a solid state, a sealing element is arranged at the contact position of the bottom end plate of the filter cylinder and the tank body, and the top conical surface of the filter cylinder is connected with the pressing block through a fixing frame.

6. The sponge urban drainage structure with a water purifying function according to claim 5, wherein a telescopic groove for limiting sliding of the scraping plate is formed in the pressing block, the scraping plate is of a T-shaped structure, and two sliding grooves for sliding of the sliding shaft are formed in one side of the inner wall of the telescopic groove.

7. The sponge urban drainage structure with a water purifying function as claimed in claim 6, wherein a vertical groove is formed in one side of the telescopic groove in the pressing block, water filtering net plates are fixedly arranged at the top end and the bottom end of the vertical groove, and the vertical groove is positioned between the two sliding shafts.

8. The sponge urban drainage structure with a water purifying function according to claim 7, wherein the spring shaft is of an arc-shaped structure, one end of the spring shaft is provided with a limiting end block, an arc-shaped groove matched with the outer wall of the spring shaft is formed in the fixing lug, and the two adjusting blocks are arranged in an eight shape.

9. The sponge urban drainage structure with a water purifying function according to claim 8, wherein a plurality of water inlet tanks are formed in the top end of the grate plate, two limit rods are symmetrically formed at two ends of the inner wall of the grate plate on one side of the partition plate, a fixing rod is fixedly arranged at one side of the inner wall of the grate plate, and the connecting shaft is slidably arranged in the fixing rod.

10. The sponge urban drainage structure with water purification function as claimed in claim 9, wherein the bottom end of the grate plate is fixedly provided with a protection box sleeved outside the gear and the rack, and two ends of the protection box are provided with connecting grooves for the rotation of the supporting shaft _。

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