Municipal rainwater collection and utilization device

Abstract

The present application relates to the technical field of rainwater collection and utilization, and in particular to a municipal rainwater collection and utilization device, comprising a collecting cylinder, a manhole cover is provided at the upper end of the collecting cylinder, a plurality of water inlet holes are opened on the manhole cover, a guide ring inclined toward the inside of the collecting cylinder is provided at the upper end of the collecting cylinder, a water outlet pipe is provided at the lower end of the supporting cylinder, and a breaker is provided in the collecting cylinder; the breaker of the present invention drives the crushing blades provided on the driving shaft to rotate together through the rotating driving shaft, and the crushing blades correspond to the grille holes one by one, the rotating crushing blades travel in the grille holes, and crush the sundries mixed in the water flow, thereby reducing the need for regular cleaning and maintenance of the filter and the collection system, thereby reducing the maintenance cost and labor intensity, and by reducing blockage, the service life of the entire rainwater collection and utilization system can be extended, and the system failure and replacement frequency caused by blockage can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of rainwater collection and utilization, and in particular to a municipal rainwater collection and utilization device. Background Art

[0002] Municipal rainwater harvesting and utilization is a strategy aimed at improving the efficiency of urban water resource utilization and improving the urban ecological environment. It collects rainwater from the urban surface and uses it for non-drinking purposes such as urban greening, road cleaning, and landscape water replenishment after appropriate treatment. This process not only helps to save water, but also reduces the load on the urban drainage system and improves the quality of the urban ecological environment.

[0003] The rainwater collection system is the basis for municipal rainwater collection and utilization. The water treatment and purification stage may require simple filtration, sedimentation, disinfection and other treatments of the collected rainwater depending on the purpose of the rainwater to ensure that the water quality meets the use requirements. It includes facilities such as rainwater wells, collection pools and rainwater gardens set up on the hardened surface of the city. These facilities are responsible for collecting rainwater and transporting it to storage facilities through pipes or ditches or directly for other purposes.

[0004] The advantages of municipal rainwater collection and utilization are obvious. It helps to save water resources, reduce urban drainage pressure, improve urban ecological environment, and improve water resource utilization efficiency; for example, a system for collecting and reusing urban rainwater with publication number CN105350607B relates to the field of urban rainwater collection technology. The prior art includes a rainwater collection module for collecting water and a rainwater comprehensive utilization module for reusing rainwater collected by the rainwater collection module. The prior art system is simple and low in cost. The use of this system can effectively improve the comprehensive utilization rate of urban rainwater.

[0005] However, the above existing technologies still have some defects when it comes to rainwater collection and utilization:

[0006] 1. When collecting and utilizing rainwater, the above-mentioned prior art discards the rainwater with a high pollutant content collected by the water inlet device in the early stage, thereby ensuring the quality of the collected rainwater and preventing clogging of the pipeline. However, in actual applications, the duration of rainwater is uncertain, and there are short rainy days such as showers. The early rainwater may contain more pollutants and impurities. If this rainwater is discarded, it may lead to a decrease in rainwater collection efficiency, especially in areas with frequent showers.

[0007] For example, if the rainfall is heavy in the early stage, but gradually decreases in the later stage and the rainfall time is short, the total amount of rainwater may not be enough to reach the collection capacity of the water inlet device, resulting in the rainwater being discarded before entering the water inlet device, thus affecting the rainwater collection efficiency.

[0008] 2. When the above-mentioned prior art collects and utilizes rainwater, although the rainwater with a high pollutant content collected by the water inlet device in the early stage is discarded, in actual application, there will still be debris mixed in the later water flow, causing the water inlet device to be blocked, affecting the collection of rainwater.

[0009] Based on this, and according to the above-mentioned viewpoints, there is still room for improvement in the existing technology for rainwater collection and utilization. Summary of the invention

[0010] In order to solve the above technical problems, the present application provides a municipal rainwater collection and utilization device, which adopts the following technical solutions:

[0011] A municipal rainwater collection and utilization device comprises a collection tube, a manhole cover is arranged at the upper end of the collection tube, a plurality of water inlet holes are opened on the manhole cover, a guide ring is arranged at the upper end of the collection tube, a water outlet pipe is arranged at the lower end of the collection tube, and a breaker is arranged in the collection tube;

[0012] The crusher comprises a support ring arranged in a collecting cylinder, a plurality of evenly distributed grid plates are arranged in the support ring, a grid hole is formed between two adjacent grid plates, and a grid net is formed between the support ring and the plurality of grid plates.

[0013] Preferably, a driving shaft rotatably connected to a support ring is provided between the plurality of grid plates for common rotation, and the driving shaft is provided with crushing blades corresponding to the grid holes one by one, and both ends of the crushing blades are provided with cutting edges.

[0014] Preferably, a guide plate located at the lower end of the grid is arranged in the collecting cylinder, hollow holes corresponding to the crushing blades are opened on the guide plate, and a plurality of filter holes are opened on the guide plate.

[0015] Preferably, filter tanks are provided on both sides of the collecting cylinder, the filter tanks are provided with water inlet holes connected to the collecting cylinder, the filter tanks are provided with a plurality of drainage holes located at the lower end of the guide plate, and the drainage holes are connected to the collecting cylinder;

[0016] The guide plate is provided with a guide slope which is inclined from the middle toward the water inlet hole.

[0017] Preferably, a filter is provided in the water outlet pipe;

[0018] The filter comprises a water outlet hole provided on the water outlet pipe, a sealing plate is hinged in the water outlet hole, a protrusion is provided at the hinged end of the sealing plate, and a pin hole is provided on one side of the sealing plate;

[0019] A sliding groove is provided in the water outlet pipe on one side of the sealing plate, a pin block is slidably arranged in the sliding groove and plugged into the pin hole, a guiding surface is arranged at one end of the pin block, and an interference spring is arranged between one side of the pin block and the sliding groove.

[0020] Preferably, sliding rods are symmetrically arranged in the water outlet pipe through a bracket, a filter plate is slidably arranged between two sliding rods, a return spring located on the lower side of the filter plate is sleeved on the sliding rod, and a plurality of water filtering holes are opened on the filter plate.

[0021] Preferably, the upper end of the filter plate is provided with an inclined surface facing the water outlet.

[0022] Preferably, the lower end of the water outlet pipe is connected with a flow pipe;

[0023] The outlet pipe is provided with a filter cartridge located at one side of the outlet hole, a plurality of seepage holes are opened in the filter cartridge, a water collecting cover is located at the lower end of the seepage hole on the filter cartridge, and a connecting pipe is provided between the water collecting cover and the flow pipe through a one-way valve.

[0024] Preferably, a water blocker is provided at the bottom of the collecting cylinder;

[0025] The water blocker includes an upper end of a water outlet pipe that passes through one end of the collecting tube and is provided with a flow groove, a water blocking plate is provided in the water outlet pipe for sliding resistance, a benchmark is provided on the water blocking plate, and a buoy located in the water outlet pipe is movably sleeved on the benchmark.

[0026] Preferably, an adjustment ring located above the buoy is threadedly connected to the pole.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The breaker of the present invention drives the crushing blades arranged on the driving shaft to rotate together through the rotating driving shaft, and the crushing blades correspond to the grille holes one by one. The rotating crushing blades pass through the grille holes to crush the debris mixed in the water flow, reducing the need for regular cleaning and maintenance of the filter and the collection system, thereby reducing maintenance costs and labor intensity. By reducing blockages, the service life of the entire rainwater collection and utilization system can be extended, and the system failures and replacement frequency caused by blockages can be reduced.

[0029] 2. The filter of the present invention can lock the sealing plate by inserting the pin block into the pin hole and release the sealing plate by withdrawing the pin block from the pin hole. The filter plate can be automatically cleaned later, which helps to maintain the efficient operation of the filter and ensure the quality of the collected rainwater, thereby making more effective use of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention.

[0031] Figure 2 It is a three-dimensional cross-sectional view of the present invention.

[0032] Figure 3 It is a schematic structural diagram of the crusher of the present invention.

[0033] Figure 4 It is a schematic diagram of the structure of the filter of the present invention.

[0034] Figure 5 It is a cross-sectional view of the filter of the present invention.

[0035] Figure 6 The present invention Figure 6 A partial enlarged view of point A.

[0036] Figure 7 It is a structural schematic diagram of the water blocker of the present invention.

[0037] Figure 8 It is a schematic diagram of the structure between the transmission shaft and the water wheel blades of the present invention.

[0038] Description of reference numerals: 1, collecting cylinder; 11, guide ring; 2, manhole cover; 21, water inlet hole; 3, water outlet pipe; 4, breaker; 41, grid net; 411, support ring; 412, grid plate; 413, grid hole; 42, drive shaft; 43, crushing blade; 431, blade; 44, guide plate; 441, hollow hole; 442, filter hole; 45, filter tank; 451, water inlet hole; 452, drain hole; 46, guide slope; 5, filter; 51, water outlet hole; 511, sealing plate; 512, protrusion; 52, pin hole; 53 , sliding groove; 531, pin block; 532, guide surface; 533, resistance spring; 54, sliding rod; 55, filter plate; 551, water filter hole; 552, inclined surface; 56, reset spring; 57, flow pipe; 58, filter cartridge; 581, water seepage hole; 582, water collecting cover; 59, connecting pipe; 6, water blocker; 61, flow groove; 62, water block plate; 63, benchmark; 64, buoy; 65, adjustment ring; 7, inclined section; 71, drain pipe; 72, transmission shaft; 73, water wheel blade; 74, transmission bevel gear; 75, driving bevel gear. DETAILED DESCRIPTION

[0039] The following is combined with Figures 1 to 8 This application is described in further detail.

[0040] The embodiment of the present application discloses a municipal rainwater collection and utilization device, which improves the quality of rainwater recycling by breaking up debris in the rainwater and then filtering the broken debris.

[0041] Embodiment 1:

[0042] Reference Figure 1 and Figure 2 A municipal rainwater collection and utilization device comprises a collection tube 1, and a manhole cover 2 is arranged at the upper end of the collection tube 1.

[0043] When it rains, rainwater falls to the ground and gathers into water flows. Then, these water flows pass through a plurality of water inlet holes 21 opened on the manhole cover 2, and then enter the collecting tube 1 through a guide ring 11 arranged at the upper end of the collecting tube 1 and inclined toward the inside of the collecting tube 1. These water flows may be mixed with debris, such as fallen leaves, branches, etc.

[0044] The crusher 4 arranged in the collecting tube 1 will crush the debris into smaller debris and screen the crushed debris so that larger debris is screened out to prevent clogging, while smaller debris will flow into the outlet pipe 3 arranged at the lower end of the collecting tube 1, and the filter 5 arranged in the outlet pipe 3 will further filter the debris in the water flow to separate and filter the debris in the rainwater.

[0045] Reference Figure 2 and Figure 3 Specifically, the crusher 4 includes a support ring 411 disposed in the collecting tube 1 , a plurality of evenly distributed grid plates 412 are disposed in the support ring 411 , and grid holes 413 are formed between two adjacent grid plates 412 .

[0046] When rainwater falls on the ground and gathers into a water flow mixed with debris and flows into the collecting tube 1, the existing motor driving technology is used to drive the driving shaft 42 that is jointly rotated and penetrated between the plurality of grille plates 412 and is rotatably connected to the support ring 411 to rotate. The rotating driving shaft 42 will drive the crushing blades 43 provided on the driving shaft 42 to rotate together, and the crushing blades 43 correspond to the grille holes 413 one by one. The rotating crushing blades 43 will pass through the grille holes 413 to crush the debris mixed in the water flow.

[0047] Both ends of the crushing blade 43 are provided with blades 431, and the blades 431 can effectively cut and crush debris, thereby improving the crushing efficiency.

[0048] The crushed debris passes through the grid net 41 formed between the support ring 411 and the plurality of grid plates 412 along with the water flow, and then falls onto the guide plate 44 located at the lower end of the grid net 41 arranged in the collecting tube 1; at the same time, the rotating crushing blades 43 will shuttle through the hollow holes 441 opened on the guide plate 44 corresponding to the crushing blades 43, and the size of the hollow holes 441 is smaller than the grid holes 413.

[0049] Among them, smaller debris will pass through the hollow hole 441 and the plurality of filter holes 442 opened on the guide plate 44 along with the water flow, and then flow into the bottom of the collecting tube 1, and then flow into the outlet pipe 3 set at the lower end of the collecting tube 1, so that the filter 5 can further filter and process the debris in the water flow to separate and filter the debris in the rainwater.

[0050] Filter tanks 45 are disposed on both sides of the collecting cylinder 1 , and water inlet holes 451 communicating with the collecting cylinder 1 are formed on the filter tanks 45 .

[0051] While the water flows through the hollow hole 441 and the plurality of filter holes 442, part of the water flows toward the water inlet hole 451 along the guide slope 46 arranged on the guide plate 44 and inclined from the middle toward the water inlet hole 451. The water flows with the debris that cannot pass through the hollow hole 441 and the filter holes 442, and makes these debris enter the filter tank 45 along with the water flow. At this time, the water in the filter tank 45 will flow through the plurality of drain holes 452 opened on the filter tank 45. Since the drain holes 452 are located at the lower end of the guide plate 44 and are connected to the collecting tube 1, the water flowing through the drain holes 452 will also enter the bottom of the collecting tube 1, and the larger debris will be blocked in the filter tank 45.

[0052] The filter tank 45 and the collection tube 1 are detachably mounted. Necessary maintenance work can be performed by disassembling the filter tank 45 or the collection tube 1, thereby making the cleaning and maintenance of the filter tank 45 and the collection tube 1 more convenient.

[0053] The water flowing through the hollow hole 441 and the filter hole 442 and the water flowing through the drain hole 452 will converge at the bottom of the collecting tube 1, and then flow into the outlet pipe 3 arranged at the lower end of the collecting tube 1, so that the filter 5 can further filter the debris in the water flow to separate and filter the debris in the rainwater.

[0054] Reference Figures 4 to 6 Specifically, the filter 5 includes a water outlet hole 51 opened on the water outlet pipe 3, a sealing plate 511 is hinged in the water outlet hole 51, a protrusion 512 is provided at the hinged end of the sealing plate 511, and a pin hole 52 is provided on one side of the sealing plate 511; a sliding rod 54 is symmetrically arranged in the water outlet pipe 3 through a bracket.

[0055] The water flowing through the hollow hole 441 and the filter hole 442 and the water flowing through the drain hole 452 will converge at the bottom of the collecting tube 1, and then flow into the water outlet pipe 3 arranged at the lower end of the collecting tube 1 together. At this time, the water flow is still mixed with smaller debris.

[0056] After entering the water outlet pipe 3, the water flow will contact the filter plate 55 slidingly arranged between the two sliding rods 54, and the water flow will flow out through the several water filtering holes 551 opened on the filter plate 55 and enter the flow pipe 57 connected to the lower end of the water outlet pipe 3; in this process, smaller debris in the water flow will be blocked by the filter plate 55 and stay on the filter plate 55. After a long period of filtering work, the filter holes 442 on the filter plate 55 are gradually blocked, so that the impact force of the water flow on the filter plate 55 will become larger. At this time, the impact force of the water flow will push the filter plate 55 to move downward and compress the return spring 56 on the sliding rod 54 that is sleeved on the lower side of the filter plate 55.

[0057] A sliding groove 53 is provided in the water outlet pipe 3 and is located on one side of the sealing plate 511. As the filter plate 55 moves, the filter plate 55 will push the pin block 531 that is slidably arranged in the sliding groove 53 and plugged into the pin hole 52, and compress the interference spring 533 provided between one side of the pin block 531 and the sliding groove 53, so that the pin block 531 withdraws from the pin hole 52, thereby releasing the lock on the sealing plate 511.

[0058] At this time, water flows through the inclined surface 552 set at the upper end of the filter plate 55 facing the water outlet hole 51, pushing the hinged sealing plate 511 in the water outlet hole 51 to open, thereby flowing into the filter cartridge 58 located on the side of the water outlet hole 51 on the water outlet pipe 3, and at the same time, the debris blocking the filter plate 55 will be flushed into the filter cartridge 58.

[0059] As the blocked debris is flushed away, the water filter holes 551 on the filter plate 55 resume circulation. At this time, the impact of the water flow on the filter plate 55 is reduced, and the filter plate 55 will move upward under the push of the return spring 56 until the filter plate 55 hits the protrusion 512 set at the hinged end of the sealing plate 511, causing the sealing plate 511 to rotate and the sealing plate 511 to hit the guide surface 532 set at one end of the pin block 531, thereby pushing the pin block 531 to move in the sliding groove 53 and compressing the resistance spring 533, so that the pin block 531 is pinned into the pin hole 52 to lock the sealing plate 511; at this time, the filter plate 55 continues to filter the water flow.

[0060] The water flow entering the filter tank 45 will pass through the multiple seepage holes 581 opened in the filter cartridge 58, enter the water collecting cover 582 located at the lower end of the seepage holes 581 on the filter cartridge 58, and then pass through the connecting pipe 59 provided between the water collecting cover 582 and the circulation pipe 57 through a one-way valve, thereby entering the circulation pipe 57 connected to the lower end of the outlet pipe 3, and the blocked debris will remain in the filter tank 45.

[0061] The water flowing through the water filter hole 551 and the water flowing through the connecting pipe 59 will converge in the circulation pipe 57, and then be stored and utilized after sedimentation and disinfection.

[0062] Embodiment 2:

[0063] Reference Figure 7 , based on the first embodiment,

[0064] In actual applications, the duration of rainwater is uncertain, and there are short rainy days such as showers. These rainwater cannot provide sufficient impact force to push the filter plate 55, so a water blocker 6 is provided at the bottom of the collection tube 1. The water blocker 6 can store a certain amount of rainwater and then transport the rainwater into the outlet pipe 3.

[0065] Specifically, the water blocker 6 includes an upper end of the water outlet pipe 3 that penetrates into the collecting tube 1 and is provided with a flow groove 61 at one end.

[0066] When the water flowing through the hollow hole 441 and the filter hole 442 and the water flowing through the drain hole 452 converge at the bottom of the collecting tube 1, due to the water blocking plate 62 slidingly arranged in the water outlet pipe 3, the water blocking plate 62 blocks the water outlet pipe 3, and the water in the collecting tube 1 cannot enter the water outlet pipe 3.

[0067] A benchmark 63 is provided on the water blocking plate 62. As the amount of water in the collecting tube 1 increases, the buoy 64 movably mounted on the benchmark 63 and located in the water outlet pipe 3 will float with the rising water level until the water level causes the float to hit the adjusting ring 65 threadedly connected to the benchmark 63 and located above the buoy 64. The float will hit the adjusting ring 65, causing the adjusting ring 65 to drive the water blocking plate 62 to move upward through the benchmark 63, thereby causing the water blocking plate 62 to open the flow slot 61.

[0068] At this time, the water flows into the water outlet pipe 3 through the flow slot 61 , thereby ensuring that sufficient water flow can push the filter plate 55 .

[0069] As the filter plate 55 is opened, the water level in the collecting tube 1 gradually decreases and drives the float to move downward until the float contacts the water blocking plate 62. The float has a certain weight, and the weight of the float will push the water blocking plate 62 downward to block the flow slot 61. At this time, the collecting tube 1 will store water again until the float hits the adjusting ring 65 again, causing the water blocking plate 62 to open the flow slot 61.

[0070] The adjusting ring 65 is threadedly connected and can move on the pole 63 , thereby changing the water level at which the float contacts the adjusting ring 65 .

[0071] Embodiment three:

[0072] Reference Figure 8 , based on the first and second embodiments,

[0073] The water flow in the circulation pipe 57 will pass through the inclined section 7 set at one end of the circulation pipe 57, and then flow into the drainage pipe 71 connected to one end of the circulation pipe 57. Due to the existence of the inclined section 7, the flow rate of the water flow remains unchanged at this time. When the circulation space of the water flow is reduced, the flow rate of the water flow will increase accordingly.

[0074] A transmission shaft 72 is rotatably penetrated on the drain pipe 71. The water flow entering the drain pipe 71 will drive the water wheel blades 73 arranged on the transmission shaft 72 and located in the drain pipe 71, so that the water wheel blades 73 drive the transmission shaft 72 to rotate. The rotating transmission shaft 72 will drive the transmission bevel gear 74 arranged on the transmission shaft 72 to rotate together. The driving bevel gear 75 arranged after one end of the driving shaft 42 passes through the collecting barrel 1 will drive the driving shaft 42 to rotate by meshing with the transmission bevel gear 74, thereby driving the crushing blade 43 to rotate to crush the debris.

[0075] Due to the presence of the water blocking plate 62, there is a certain interval in driving the water wheel blades 73, so each time the debris entering the collecting cylinder 1 will stay on the grid 41 until the water wheel blades 73 are driven, thereby driving the crushing blades 43 to crush the debris.

[0076] That is, each time the crushing blade 43 works as the water blocking plate 62 is opened, the debris on the grid net 41 entering the collecting cylinder 1 can be crushed each time.

[0077] The water flowing through the filter hole 551 and the water flowing through the connecting pipe 59 will converge in the circulation pipe 57, and then enter the drainage pipe 71 to drive the water wheel blades 73 to be transported out, and then stored after sedimentation and disinfection for use.

[0078] The implementation principle of the present invention is:

[0079] (1): When it rains, rainwater falls to the ground and gathers into water flows. Then, these water flows pass through a plurality of water inlet holes 21 opened on the manhole cover 2, and then enter the collecting tube 1 through a guide ring 11 arranged at the upper end of the collecting tube 1 and inclined toward the inside of the collecting tube 1. These water flows may be mixed with debris, such as fallen leaves, branches, etc.

[0080] (2): When rainwater falls on the ground and gathers into a water flow and flows into the collection tube 1 mixed with debris, the rotating drive shaft 42 will drive the crushing blade 43 set on the drive shaft 42 to rotate together, and the crushing blade 43 corresponds to the grille hole 413 one by one. The rotating crushing blade 43 will pass through the grille hole 413 to crush the debris mixed in the water flow.

[0081] (3): The crushed debris passes through the grid net 41 formed between the support ring 411 and the plurality of grid plates 412 along with the water flow, and then falls onto the guide plate 44 at the lower end of the grid net 41 arranged in the collecting tube 1. The smaller debris passes through the hollow hole 441 and the plurality of filter holes 442 opened on the guide plate 44 along with the water flow, and then flows into the bottom of the collecting tube 1, and then flows into the water outlet pipe 3 arranged at the lower end of the collecting tube 1.

[0082] (4): After entering the outlet pipe 3, the water flow will contact the filter plate 55, and the water flow will flow out through the water filter holes 551 on the filter plate 55 and enter the flow pipe 57 connected to the lower end of the outlet pipe 3. During this process, smaller debris in the water flow will be blocked by the filter plate 55 and remain on the filter plate 55. After a long period of filtration, the filter holes 442 on the filter plate 55 are gradually blocked.

[0083] (5): The impact force of the water flow on the filter plate 55 will become greater. At this time, the impact force of the water flow will push the filter plate 55 downward and compress the return spring 56, pushing the pin block 531, so that the pin block 531 withdraws from the pin hole 52, thereby releasing the lock on the sealing plate 511.

[0084] (6): At this time, water flows through the inclined surface 552 set at the upper end of the filter plate 55 facing the water outlet hole 51, pushing the hinged sealing plate 511 in the water outlet hole 51 to open, thereby flowing into the filter cartridge 58 set on the outlet pipe 3 and located on the side of the water outlet hole 51, and at the same time, the debris blocking the filter plate 55 will be flushed into the filter cartridge 58.

[0085] (7): As the blocked debris is flushed away, the water filter holes 551 on the filter plate 55 resume circulation, and the impact of the water flow on the filter plate 55 is reduced. The filter plate 55 will move upward under the push of the return spring 56 until the filter plate 55 hits the protrusion 512 set at the hinge end of the sealing plate 511, causing the sealing plate 511 to rotate and the sealing plate 511 to hit the guide surface 532 set at one end of the pin block 531, thereby pushing the pin block 531 to move in the sliding groove 53 and compressing the resistance spring 533, so that the pin block 531 is pinned into the pin hole 52 to lock the sealing plate 511; at this time, the filter plate 55 continues to filter the water flow.

[0086] (8): The water flow entering the drain pipe 71 will drive the water wheel blades 73 located in the drain pipe 71 and arranged on the transmission shaft 72, so that the water wheel blades 73 drive the transmission shaft 72 to rotate. The rotating transmission shaft 72 will drive the transmission bevel gear 74 arranged on the transmission shaft 72 to rotate together. The driving bevel gear 75 arranged after one end of the driving shaft 42 passes through the collecting barrel 1 will drive the driving shaft 42 to rotate by meshing with the transmission bevel gear 74, thereby driving the crushing blade 43 to rotate to crush the debris.

[0087] (9): Due to the presence of the water blocking plate 62, the water wheel blades 73 are driven at a certain interval, so each time the debris entering the collection tube 1 stays on the grid net 41 until the water wheel blades 73 are driven, thereby driving the crushing blades 43 to crush the debris. Each time the crushing blades 43 work with the opening of the water blocking plate 62, the debris on the grid net 41 entering the collection tube 1 can be crushed.

[0088] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A municipal rainwater collection and utilization device, comprising a collection tube (1), a manhole cover (2) being arranged at the upper end of the collection tube (1), a plurality of water inlet holes (21) being opened on the manhole cover (2), characterized in that: The upper end of the collecting cylinder (1) is provided with a guide ring (11), the lower end of the collecting cylinder (1) is provided with a water outlet pipe (3), and a crusher (4) is provided inside the collecting cylinder (1); The crusher (4) comprises a support ring (411) arranged in the collecting cylinder (1), a plurality of evenly distributed grid plates (412) being arranged in the support ring (411), a grid hole (413) being formed between two adjacent grid plates (412), and a grid mesh (41) being formed between the support ring (411) and the plurality of grid plates (412); A filter (5) is arranged in the water outlet pipe (3); The filter (5) comprises a water outlet hole (51) formed on the water outlet pipe (3); a sealing plate (511) is hingedly connected in the water outlet hole (51); a protrusion (512) is provided at the hinged end of the sealing plate (511); and a pin hole (52) is provided on one side of the sealing plate (511); The water outlet pipe (3) is provided with a sliding groove (53) located on one side of the sealing plate (511), a pin block (531) is slidably arranged in the sliding groove (53) and is plugged into the pin hole (52), a guide surface (532) is arranged at one end of the pin block (531), and a resisting spring (533) is arranged between one side of the pin block (531) and the sliding groove (53); Sliding rods (54) are symmetrically arranged in the water outlet pipe (3) through a bracket, and a filter plate (55) is slidably arranged between the two sliding rods (54). A return spring (56) located at the lower side of the filter plate (55) is sleeved on the sliding rod (54), and a plurality of water filtering holes (551) are opened on the filter plate (55).

2. A municipal rainwater collection and utilization device according to claim 1, characterized in that: A driving shaft (42) rotatably connected to the support ring (411) is provided between the plurality of grid plates (412) for common rotation. Crushing blades (43) corresponding one to one with the grid holes (413) are provided on the driving shaft (42). Blades (431) are provided at both ends of the crushing blades (43).

3. A municipal rainwater collection and utilization device according to claim 2, characterized in that: The collecting cylinder (1) is provided with a guide plate (44) located at the lower end of the grid net (41), the guide plate (44) is provided with hollow holes (441) corresponding one to one with the crushing blades (43), and the guide plate (44) is provided with a plurality of filtering holes (442).

4. A municipal rainwater collection and utilization device according to claim 3, characterized in that: Filter tanks (45) are provided on both sides of the collecting cylinder (1), and a water inlet hole (451) connected to the collecting cylinder is provided on the filter tank (45). A plurality of drainage holes (452) located at the lower end of the guide plate (44) are provided on the filter tank (45), and the drainage holes (452) are connected to the collecting cylinder (1); The guide plate (44) is provided with a guide slope (46) that slopes from the middle toward the water inlet hole (451).

5. The municipal rainwater collection and utilization device according to claim 1, characterized in that: The upper end of the filter plate (55) is provided with an inclined surface (552) facing the water outlet hole (51).

6. A municipal rainwater collection and utilization device according to claim 1, characterized in that: The lower end of the water outlet pipe (3) is connected to a circulation pipe (57); The water outlet pipe (3) is provided with a filter cartridge (58) located on one side of the water outlet hole (51), a plurality of water seepage holes (581) are provided in the filter cartridge (58), a water collecting cover (582) is provided on the filter cartridge (58) at the lower end of the water seepage holes (581), and a connecting pipe (59) is provided between the water collecting cover (582) and the circulation pipe (57) via a one-way valve.

7. The municipal rainwater collection and utilization device according to claim 1, characterized in that: A water blocker (6) is provided at the inner bottom of the collecting cylinder (1); The water blocker (6) comprises an upper end of a water outlet pipe (3) penetrating into one end of the collecting tube (1) and having a flow groove (61), a water block plate (62) being slidably disposed in the water outlet pipe (3), a mark rod (63) being disposed on the water block plate (62), and a buoy (64) located in the water outlet pipe (3) being movably sleeved on the mark rod (63).

8. A municipal rainwater collection and utilization device according to claim 7, characterized in that: The pole (63) is threadedly connected to an adjustment ring (65) located above the buoy (64).

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