Sponge city rainwater collection system

Abstract

The invention relates to the field of green city planning and construction, and provides a sponge city rainwater collecting system which comprises a collecting box arranged on the surface of a building roof, a collecting cavity is formed in the top of the collecting box, and a filtering mechanism is installed on the top of the collecting box; the filtering mechanism comprises a hollow rotating drum and a water filtering net cover, the hollow rotating drum is rotatably mounted on the collecting box, and a plurality of through grooves are formed in the peripheral surface of the hollow rotating drum at intervals; the number of the water filtering net covers is matched with that of the through grooves, the water filtering net covers are fixed to the peripheral face of the hollow rotary drum and cover the through grooves, interception areas used for intercepting impurities are formed between the adjacent water filtering net covers, and each interception area is movably provided with a cleaning assembly; a mounting chamber communicating with the collecting cavity is arranged on the side face of the collecting box, and a collecting box is detachably mounted in the mounting chamber; the object collecting box is provided with an object collecting groove communicating with the collecting cavity, and the interception area can directly face the object collecting groove. On the basis, the sundries can be automatically cleaned and collected, so that long-term normal use of the collecting system is ensured.

Description

Technical Field

[0001] The present application relates to the field of green city planning and construction, and in particular to a sponge city rainwater collection system. Background Art

[0002] Sponge city means that the city can be like a flexible "sponge", which can collect, store, infiltrate and purify rainwater in time during natural precipitation, and release and utilize the stored water when needed. As a new generation of urban stormwater management strategy, based on the concept of low-impact development, sponge city can effectively solve the urban water crisis.

[0003] Among them, the sponge construction of buildings and communities in the city is one of the important contents of implementing the construction of sponge cities, and is also an important part of the development of urban construction space. The types of sponge city construction include sunken green space, permeable pavement, grass-planted ditch, rain garden, etc. Among them, rain garden is usually set up on the roof of the building. Through measures such as planting plants and setting up rainwater collection pools, rainwater is collected for purification and reuse. On the one hand, it can save various energy consumption, and on the other hand, it can beautify the urban environment and improve the overall greening rate of the city.

[0004] Currently, existing green roofs usually have green areas on the roof surface to absorb and filter rainwater, and also have collection boxes on the roof surface to collect rainwater so that the collected rainwater can be used to water the green plants on sunny days. In real life, due to factors such as wind and rain, sometimes branches, plastic bags and other debris will be carried into the collection box, which will cause the collection box to be blocked over time, so a filter plate is often installed at the box mouth of the collection box; however, the long-term accumulation of debris on the filter plate will also affect the normal collection of rainwater, and the debris on the filter plate needs to be frequently cleaned, which needs to be improved. Summary of the invention

[0005] Based on this, the present application provides a sponge city rainwater collection system that can automatically clean and collect debris to ensure the long-term normal use of the collection system.

[0006] The sponge city rainwater collection system provided in this application adopts the following technical solutions: A sponge city rainwater collection system comprises a collection box arranged on the roof surface of a building and a water storage tank arranged inside the roof of the building, wherein the collection box and the water storage tank are connected via a connecting pipe; A collecting chamber is provided on the top of the collecting box, and a filtering mechanism is provided at the opening of the collecting chamber; wherein the filtering mechanism comprises a hollow drum and a water filtering screen, the hollow drum is rotatably mounted on the collecting box, a plurality of through grooves are arranged at intervals on the outer circumference of the hollow drum, and each through groove penetrates the interior of the hollow drum; The number of water filter screens matches that of the through grooves. The water filter screens are fixed to the outer peripheral surface of the hollow drum and cover the through grooves. A retention area for retaining debris is formed between adjacent water filter screens, and a cleaning component is movably installed in each retention area. An installation chamber connected to the collection chamber is provided on the side of the collection box, and a collection box is detachably installed inside the installation chamber; the collection box is provided with a collection trough connected to the collection chamber. When the hollow drum rotates and one of the interception areas is opposite to the collection trough, the cleaning component moves outward under the action of its own gravity to force the debris to automatically enter the collection trough.

[0007] By adopting the above technical solution, the present application collects rainwater by setting up a collection box. After rainwater enters the hollow drum through the water filter mesh cover, it can leave from another water filter mesh cover and then fall into the collection chamber and the water storage tank for collection and reuse. After rainwater is collected and debris carried by wind and rain falls into the filtering mechanism, more debris will enter the interception area under the flushing of rainwater. At this time, after the hollow drum rotates in a passive or active manner, the interception area with debris can be rotated to a position opposite to the collection box. At this time, the cleaning component moves outward under the action of its own gravity, and can automatically push the debris into the collection tank, realizing automatic cleaning and collection of debris, greatly reducing the possibility of debris adhering to and clogging the water filter mesh cover and affecting the normal use of the collection box; subsequently, it only needs to regularly disassemble the collection box to clean the collected debris, so as to ensure the long-term normal use of the collection system.

[0008] Optionally, a movable groove is provided on the outer circumferential surface of the hollow drum, and the movable groove is located in the middle of two adjacent through grooves; the cleaning assembly includes an arc-shaped bottom plate and a movable plate connected to the inner arc surface of the arc-shaped bottom plate, and the movable plate is movably inserted in the movable groove; the arc-shaped bottom plate is located inside the interception area, and when the arc-shaped bottom plate abuts against the outer circumferential wall of the hollow drum, the arc-shaped bottom plate abuts against two adjacent water filter screens on both sides respectively; an anti-slip portion is provided on the side of the movable plate away from the arc-shaped bottom plate, and when the anti-slip portion abuts against the inner circumferential wall of the hollow drum, the outer arc surface of the arc-shaped bottom plate is flush with the outer arc surface of the water filter screen.

[0009] By adopting the above technical scheme, the interception area located above the hollow drum and exposed to the mouth of the collection chamber in the present application is used to intercept the debris carried by wind and rain. The arc bottom plate of the interception area can be pressed against the outer peripheral wall of the hollow drum under the action of its own gravity, so that the debris can smoothly enter the interior of the interception area; when the hollow drum rotates and the interception area rotates to a position directly opposite to the collection box, the interception area is tilted downward, and the arc bottom plate and the movable plate can naturally move downward under the action of their own gravity, which is conducive to pushing the debris out of the interception area and entering the collection tank. In addition, when the movable plate moves outward and the anti-slip part presses against the inner wall of the hollow drum, the surface of the arc bottom plate can be kept flush with the surface of the water filter screen. When some debris sticks to the arc bottom plate and does not enter the collection tank, the subsequent rotation of the hollow drum can cause the notch position of the collection tank to scrape the debris, which is conducive to scraping the debris into the collection tank, so that the interior of the interception area remains clean.

[0010] Optionally, the cleaning component also includes two arc-shaped side panels, the curvature of the arc-shaped side panels is the same as the curvature of the arc-shaped bottom plate, and the two arc-shaped side panels are movably embedded in two opposite side surfaces of the arc-shaped bottom plate in the arc direction.

[0011] By adopting the above-mentioned technical solution, when the curved bottom plate moves outward under the action of gravity, the curved side plates gradually move away from the curved bottom plate along their own arc direction. At this time, the curved side plates automatically expand outward under the action of gravity and remain in contact with the sides of the water filter cover, so as to completely push the debris away from the retention area, further reducing the possibility of debris remaining inside the retention area.

[0012] Optionally, the side end surface of the hollow drum is provided with a connecting shaft that passes through the outside of the collecting box, and the exposed end of the connecting shaft is fixed with a rotating mechanism for rotating the hollow drum; wherein the rotating mechanism includes a rotating wheel fixed to the connecting shaft and a plurality of blades arranged at intervals on the side of the rotating wheel, and each blade is arranged at an incline.

[0013] By adopting the above-mentioned technical solution, by fixing the rotary disc on the connecting shaft and exposing it to the collection box, the blades on the rotary disc can be used to withstand the impact of wind and rain, and then can drive the hollow drum to rotate naturally under the impact of wind and rain, thereby realizing the rotation of the hollow drum and the automatic cleaning and collection of debris in a non-powered manner, which has the advantage of energy saving.

[0014] Optionally, the side end surface of the hollow drum is provided with a connecting shaft that passes through the outside of the collecting box, and a wheel pendulum disk is fixed to the connecting shaft; a first motor is fixedly embedded in the collecting box, and the output end of the first motor passes through the outside of the collecting box and is fixed with a driving disk, and a linkage structure is provided between the driving disk and the wheel pendulum disk to enable the first motor to drive the wheel pendulum disk to rotate when it is in operation.

[0015] By adopting the above-mentioned technical solution, a first motor is set to drive the driving disk to rotate. When the driving disk rotates, the linkage structure can be used to drive the wheel pendulum disk to rotate, thereby driving the hollow drum to rotate circumferentially in an orderly manner, so that each interception area passes through the collection box in turn and the debris is automatically pushed into the collection box. The debris collected in each interception area can be collected in turn, ensuring the normal use of each interception area.

[0016] Optionally, the linkage structure includes a crescent plate, a toggle column, an inner arc groove and a strip groove, wherein there are multiple inner arc grooves, all of which are equidistantly arranged along the outer circumference of the wheel swing plate; the number of strip grooves and inner arc grooves matches, and each strip groove is located between adjacent inner arc grooves; the crescent plate is coaxially fixed to the driving plate, and the toggle column is eccentrically fixed to the driving plate, and in an initial state, the outer arc surface of the crescent plate is against the inner arc surface of the inner arc groove; when the first motor is operating, the toggle column can enter the strip groove and force the wheel swing plate to rotate.

[0017] By adopting the above technical solution, in the initial state, the outer arc surface of the crescent plate can be pressed against the inner arc surface of the inner arc groove, thereby limiting the position of the wheel pendulum disc, so that the position of the wheel pendulum disc can be maintained; by controlling the operation of the first motor to drive the driving disc to rotate, the toggle column rotates eccentrically around the central axis of the driving disc, which can match the entry into the strip groove and toggle the wheel pendulum disc to a certain angle, thereby rotating the hollow drum to a certain angle. After the hollow drum rotates, it can maintain its position for a period of time, which is conducive to making one of the interception units face the collection box and making the cleaning component automatically push the debris into the collection groove to reduce the occurrence of debris remaining inside the interception area.

[0018] Optionally, the sponge city rainwater collection system further includes a green plant unit disposed on the roof surface of the building, wherein the green plant unit is provided in two groups and is respectively located on two opposite sides of the collection box; Spreading mechanisms are respectively installed on two opposite sides of the collection box, wherein the spreading mechanism includes a hinged plate, a spreading plate and a connecting rod, one side edge of the hinged plate is hinged to the collection box, and the other side edge of the hinged plate is rotatably connected to the spreading plate; one end of the connecting rod is rotatably connected to the spreading plate, and a connection position between the connecting rod and the spreading plate and a connection position between the hinged plate and the spreading plate are spaced apart; There are multiple connecting rods, and the ends of the connecting rods away from the spreading board are commonly connected to a rotating rod, and the ends of the rotating rods are provided with a driving assembly for driving the rotating rods to rotate; when the driving assembly operates to force the spreading board to spread outward, the spreading board moves to above the green plant unit.

[0019] By adopting the above technical solution, under normal conditions, the spreading plate and the hinged plate are in a mutually close position and remain in a retracted state, which can play a certain role in guiding water and guide rainwater to the mouth of the collection chamber. When encountering heavy rain, by controlling the operation of the driving component to force the rotating rod to rotate, the rotating rod and the connecting rod connected thereto rotate together, which can drive the spreading plate to rotate outward and gradually cover the top of the green plant unit, which is used to shield and protect the green plant unit and reduce the possibility of damage to the green plant unit under the impact of heavy rain.

[0020] Optionally, the driving assembly includes a worm wheel fixed to the end of a rotating rod and a worm rotatably mounted on the surface of a building roof, and the worm and the worm wheel are meshed with each other for transmission; two worms arranged in two groups of driving assemblies are connected to each other, and the thread rotation directions of the two worms are opposite, and one of the worms is connected to a second motor for rotating it.

[0021] By adopting the above-mentioned technical solution, by connecting the two worms to each other and making the threads rotate in opposite directions, controlling the operation of the second motor can make the two worms rotate together, thereby driving the two worm wheels to rotate in opposite directions, so as to drive the two groups of spreading mechanisms to spread outward at the same time; in addition, the self-locking function of the worm wheel and the worm can be used to maintain the spread state of the spreading mechanism, thereby reducing the possibility of the spreading board rotating inward under the impact of rainwater, thereby being able to provide good protection for the green plant unit.

[0022] Optionally, solar panels are embedded on the surface of the spreading plate and the surface of the hinged plate, and the solar panels are electrically connected to a battery for supplying power to the second motor.

[0023] By adopting the above technical solution, the solar panel can absorb solar energy on sunny days and convert it into electrical energy, which is used to power the second motor and other driving sources of the rainwater collection system, and has the advantages of energy saving and environmental protection.

[0024] Optionally, a spray pipe for spraying the green plant unit is provided on the roof of the building, and the water inlet end of the spray pipe is connected to a pumping pipe; there are multiple water tanks, all of which are connected to the pumping pipe, and a pumping pump is installed at the connection position between the pumping pipe and each water tank.

[0025] By adopting the above-mentioned technical solution, on rainy days, rainwater falls into the collection chamber and flows into the water tank through the connecting pipe. At this time, the operation of the water pump is controlled to pump the rainwater inside the water tank to the pumping pipe, and then sprayed to the green plant unit through the spray pipe. The rainwater can be used to irrigate the green plant unit, which saves energy and reduces consumption, and is in line with the development and construction plan of the green city.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up the hollow drum and the water filter screen, a retention area can be formed between adjacent water filter screens, and more debris will enter the retention area under the scouring of rainwater; when the hollow drum rotates passively or actively, the retention area rotates to a position opposite to the collection box, and the cleaning component moves outward under its own gravity and can automatically push the debris into the collection tank, thereby realizing automatic cleaning and collection of the debris; 2. By arranging a crescent plate and a toggle column on the driving disk, the crescent plate keeps in contact with the inner arc groove in the initial state, so as to maintain the position of the wheel pendulum plate; when the first motor operates to drive the driving disk to rotate, the toggle column can enter the strip groove and toggle the wheel pendulum plate and the hollow rotating drum to a certain angle. After the hollow rotating drum rotates, one of the interception units can remain facing the collection box, thereby effectively cleaning the collected debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a cross-sectional view of the overall structure in Example 1; Figure 2 yes Figure 1 The enlarged view of point A in the middle; Figure 3 is a partial structural schematic diagram of the filtering mechanism in Example 1; Figure 4 yes Figure 2 The enlarged view of point B in the middle; Figure 5 is a schematic diagram of the overall structure of Example 1; Figure 6 It is a partial structural diagram of the side of the collecting box in Example 2, which mainly reflects the structure of the wheel swing plate and the driving plate.

[0028] Description of reference numerals: 1. collecting box; 11. collecting chamber; 12. installation chamber; 13. overflow pipe; 14. driving plate; 141. crescent plate; 142. toggle column; 2. water storage tank; 21. connecting pipe; 3. Filter mechanism; 31. Hollow drum; 311. Through slot; 312. Movable slot; 313. Connecting shaft; 32. Water filter screen; 33. Retention area; 34. Cleaning assembly; 341. Arc bottom plate; 342. Movable plate; 343. Arc side plate; 344. Anti-slip part; 35. Rotating mechanism; 351. Rotating wheel; 352. Blade; 36. Wheel swing plate; 361. Inner arc slot; 362. Strip slot; 4. Collection box; 41. Side base plate; 42. Net frame; 43. Collection trough; 44. Buckle; 45. Handle member; 5. Green plant unit; 6. Sprinkler pipe; 61. Pumping pipe; 62. Pumping pump; 7. Spreading mechanism; 71. Articulated plate; 72. Spreading plate; 73. Connecting rod; 74. Rotating rod; 75. Drive assembly; 751. Worm gear; 752. Worm; 753. Second motor; 76. Solar panel. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 This application is described in further detail.

[0030] Example 1 An embodiment of the present application discloses a sponge city rainwater collection system.

[0031] Reference Figure 1 , including a collecting box 1 arranged on the surface of the building roof, a green plant unit 5 arranged on the surface of the building roof and a water tank 2 arranged inside the building roof. There are multiple water tanks 2, all of which are buried together inside the building roof, and each water tank 2 is connected to the collecting box 1 through a connecting pipe 21. The connecting position of the connecting pipe 21 and the collecting box 1 is located at the bottom of the collecting box 1, so that rainwater can smoothly enter the water tank 2.

[0032] A collecting chamber 11 for collecting rainwater is provided on the top of the collecting box 1, and a connecting pipe 21 is connected to the collecting chamber 11; an overflow pipe 13 is provided on the outer side of the collecting box 1, and the overflow pipe 13 is used to be connected to the municipal drainage pipe; the connection position of the overflow pipe 13 and the collecting chamber 11 is located in the middle of the collecting chamber 11, and is used to discharge excess rainwater to the municipal drainage pipe through the overflow pipe 13 after the rainwater is collected to a specific water level, so as to relieve the drainage pressure.

[0033] Reference Figure 2 The filter mechanism 3 is provided at the mouth of the collecting chamber 11, wherein the filter mechanism 3 comprises a hollow drum 31 and a water filter screen 32. Figure 3 The two side end surfaces of the hollow drum 31 are coaxially connected with connecting shafts 313 respectively. The connecting shafts 313 penetrate the side walls of the collecting box 1 and are rotatably arranged on the collecting box 1, so that the hollow drum 31 can rotate circumferentially around its own central axis.

[0034] Back to Figure 2, a plurality of through grooves 311 are provided on the outer circumference of the hollow drum 31, and all the through grooves 311 are arranged equidistantly on the outer circumference of the hollow drum 31; each through groove 311 penetrates the interior of the hollow drum 31, and the extension direction of the through groove 311 is arranged in the same direction as the axial direction of the hollow drum 31. In this embodiment, the specific number of the through grooves 311 is 6, but it can be understood that in other feasible embodiments, the number of the through grooves 311 can also be 4, 5 or 7, and is not limited to the number provided in this embodiment.

[0035] The number of water filter screens 32 is equal to the number of through grooves 311. Each water filter screen 32 is fixed to the outer peripheral surface of the hollow drum 31, and each water filter screen 32 is respectively covered in each through groove 311. When rainwater falls on the hollow drum 31, the rainwater can enter the hollow drum 31 through the water filter screen 32 and the through hole in turn, and leave through the through groove 311 and the water filter screen 32 at the bottom to fall into the collection chamber 11 and the water storage tank 2 for collection. Each water filter screen 32 protrudes from the outer peripheral surface of the hollow drum 31, and a retention area 33 for retaining debris can be formed between adjacent water filter screens 32. When debris carried by wind and rain falls into the filter mechanism 3, more debris will be flushed into the retention area 33 under the scouring of rainwater.

[0036] Reference Figure 4 , a cleaning assembly 34 is movably installed inside each interception area 33; wherein, the cleaning assembly 34 comprises an arc bottom plate 341, an active plate 342 and an arc side plate 343, the arc bottom plate 341 is located inside the interception area 33, and the inner arc surface of the arc bottom plate 341 can match and abut against the outer peripheral surface of the hollow drum 31; it should be noted that when the arc bottom plate 341 abuts against the outer peripheral wall of the hollow drum 31, the two side surfaces of the arc bottom plate 341 in the arc direction can respectively abut against the adjacent water filter screens 32 on both sides. The active plate 342 is vertically fixed to the center position of the inner arc surface of the arc bottom plate 341.

[0037] The side surface of the hollow drum 31 is provided with movable grooves 312 connected to the inside of the hollow drum 31. The number of movable grooves 312 is equal to the number of through grooves 311. Each movable groove 312 is correspondingly arranged in the middle of two adjacent through grooves 311. The width of the movable groove 312 is equal to the thickness of the movable plate 342, so that the movable plate 342 can be inserted into the movable groove 312 and move in the movable groove 312. An integrally formed anti-detachment portion 344 is provided on the side of the movable plate 342 away from the arc bottom plate 341. The thickness of the anti-detachment portion 344 is greater than the width of the movable groove 312, and is used to limit the movable plate 342 from directly detaching from the movable groove 312. Moreover, when the anti-detachment portion 344 abuts against the inner wall of the hollow drum 31, the outer arc surface of the arc bottom plate 341 can be flush with the outer arc surface of the water filter screen 32.

[0038] There are two arc-shaped side panels 343, which are movably embedded in two opposite side surfaces of the arc-shaped bottom plate 341 in the arc direction, and the curvature of each arc-shaped side panel 343 is the same as that of the arc-shaped bottom plate 341; when the arc-shaped bottom plate 341 moves in the retention area 33, the arc-shaped side panels 343 can automatically expand outward under the action of gravity, so as to push the debris to the outside of the filtering mechanism 3, thereby reducing the occurrence of debris remaining inside the retention area 33.

[0039] Back to Figure 2 , the side of the collection box 1 is provided with an installation chamber 12, which is connected to the collection chamber 11; the installation chamber 12 is provided with a collection box 4 inside; the collection box 4 of the present application includes a side substrate 41 and a mesh frame 42 fixed to the side substrate 41, a buckle 44 is provided between the side substrate 41 and the collection box 1, and the buckle sub-buckle and the buckle mother buckle are respectively provided on the side substrate 41 and the collection box 1; when the collection box 4 is placed in the installation chamber 12, the side of the side substrate 41 is flush with the side wall of the collection box 1, and the buckle 44 is used to fix it at this time, so that the collection box 4 and the collection box 1 can be detachably installed. The side of the side substrate 41 away from the mesh frame 42 is provided with a handle member 45, which can be convenient for people to hold to carry out the disassembly and assembly of the collection box 4.

[0040] The side of the net frame 42 away from the side substrate 41 is provided with a collection groove 43. Figure 4 When the hollow drum 31 rotates circumferentially around its own central axis, one of the interception areas 33 can be tilted downward to face the collection trough 43. At this time, the movable plate 342 and the arc-shaped bottom plate 341 connected thereto can automatically move outward under the action of their own gravity, and at the same time, the arc-shaped side plate 343 automatically expands outward, thereby pushing the debris collected in the interception area 33 into the collection trough 43 for collection, which is conducive to subsequent rapid cleaning.

[0041] In addition, refer to Figure 3 and Figure 5 In this embodiment, one end of the connecting shaft 313 away from the hollow drum 31 can be exposed outside the collecting box 1, and the exposed end of the connecting shaft 313 is fixedly connected to a rotating mechanism 35; wherein the rotating mechanism 35 includes a rotating wheel 351 and a plurality of blades 352, and the rotating wheel 351 is coaxially fixed to the connecting shaft 313; each blade 352 is respectively fixedly installed on the side of the rotating wheel 351 away from the connecting shaft 313, and each blade 352 is arranged at an angle. The blade 352 is arranged to withstand the impact of wind and rain, so that the rotating wheel 351 can rotate under the impact of wind and rain, thereby driving the hollow drum 31 and the debris trapped in the interception area 33 to rotate together, realizing the rotation of the hollow drum 31 and the automatic cleaning and collection of the debris in a non-powered manner, which has the advantage of energy saving.

[0042] Back to Figure 1 The number of green plant units 5 is set to two groups, and the two groups of green plant units 5 are respectively arranged on two opposite sides of the collecting box 1; it should be noted here that the green plant unit 5 in this embodiment includes an anti-leakage layer, a root isolation layer, a moisture retaining layer, a drainage layer, a filtration layer, a planting layer and a vegetation layer arranged in sequence from bottom to top, and its design means are well known to those skilled in the art, and it is mainly used to enhance the drainage effect of the building roof, and will not be elaborated here.

[0043] In addition, a plurality of sprinkler pipes 6 are set up on the surface of the roof of the building, and the water inlet ends of all sprinkler pipes 6 are commonly connected to a pumping pipe 61, which is buried inside the roof of the building; and each pumping pipe 61 is respectively connected to a corresponding water storage tank 2; and a pumping pump 62 is installed at the connection position between the pumping pipe 61 and the water storage tank 2, by controlling the operation of the pumping pump 62 to pump out the rainwater stored in the water storage tank 2, it can be sprayed through the sprinkler pipe 6 to water the green plants, thereby realizing the collection and reuse of rainwater.

[0044] Back to Figure 5 , spreading mechanisms 7 are respectively installed on two opposite sides of the collection box 1, and the spreading mechanism 7 includes a hinge plate 71, a spreading plate 72 and a connecting rod 73. One side edge of the hinge plate 71 is hinged to the top of the collection box 1, and the other side edge of the hinge plate 71 is rotatably connected to the spreading plate 72. There are multiple connecting rods 73, one end of each connecting rod 73 is rotatably connected to the spreading plate 72, and each connecting rod 73 is equidistantly arranged along the length direction of the hinge plate 71; one end of each connecting rod 73 away from the spreading plate 72 is commonly fixedly connected to a rotating rod 74, and the rotating rod 74 is rotatably mounted on the outer wall of the collection box 1, and one end of the rotating rod 74 is provided with a driving assembly 75 for driving the rotating rod 74 to rotate.

[0045] It should be noted that, in the present embodiment, there is a spacing between the connection position between the connecting rod 73 and the spreading plate 72 and the connection position between the hinged plate 71 and the spreading plate 72, which is set to a; the spacing from the hinged position of the hinged plate 71 and the collecting box 1 to the hinged position of the hinged plate 71 and the spreading plate 72 is set to b, and the length of the connecting rod 73 is set to c, satisfying the following relationship: c>a+b, so that a small range rotation of the connecting rod 73 can drive the spreading plate 72 and the hinged plate 71 to undergo a large-scale contraction and extension.

[0046] The driving assembly 75 includes a worm wheel 751 and a worm 752. The worm wheel 751 is fixed to the end of the rotating rod 74, and the worm 752 is rotatably mounted on the surface of the building roof; the worm wheel 751 and the worm 752 are meshed and driven with each other. The two worms 752 arranged in the two groups of driving assemblies 75 are fixed to each other, and the threads of the two worms 752 are opposite to each other; the end of one of the worms 752 is connected to a second motor 753, and the operation of the second motor 753 can be controlled to drive the two worms 752 to rotate at the same time, thereby forcing the two worm wheels 751 to rotate in opposite directions, so as to drive the two groups of spreading mechanisms 7 to gradually expand or retract at the same time. It should be noted that when encountering heavy rain weather, by controlling the operation of the second motor 753 to drive the spreading board 72 to expand outward, the spreading board 72 finally stays above the green plant unit 5, which can play a role in shielding and protecting the green plant unit 5, and reduce the possibility of damage to the green plant unit 5 under the impact of heavy rain.

[0047] In addition, the surface of the spreading plate 72 and the surface of the hinge plate 71 are both embedded with solar panels 76, and each solar panel 76 is electrically connected to the battery, and the battery is electrically connected to the second motor 753, which can be used to power the second motor 753. By controlling the operation of the second motor 753 to drive the spreading plate 72 and the hinge plate 71 to remain in a mutually retracted state, the solar panel 76 can be tilted upward to receive solar energy and convert it into electrical energy to store in the battery; it should be noted that at this time, the spreading plate 72 can be located outside the green plant unit 5, and the spreading plate 72 and the hinge plate 71 are arranged in an inverted V shape, which can play a certain role in guiding water, and is used to guide rainwater to the cavity opening position of the collection cavity 11, so as to collect rainwater.

[0048] Example 2 An embodiment of the present application discloses a sponge city rainwater collection system.

[0049] Reference Figure 6 , a sponge city rainwater collection system disclosed in an embodiment of the present application, the remaining components are the same as those in Example 1, and are not described one by one here; the difference from Example 1 is that in this embodiment, a wheel pendulum disc 36 is fixed to the exposed end of the connecting shaft 313; a first motor (not shown in the figure) is fixedly embedded in the collection box 1, and the output end of the first motor passes through the collection box 1, is exposed on the outside of the collection box 1 and is coaxially fixed with a driving disc 14, and a linkage structure is provided between the driving disc 14 and the wheel pendulum disc 36 to enable the first motor to drive the wheel pendulum disc 36 to rotate when the first motor is in operation.

[0050] Specifically, the linkage structure includes a crescent plate 141, a toggle column 142, an inner arc groove 361 and a strip groove 362, wherein there are a plurality of inner arc grooves 361, and all inner arc grooves 361 are arranged equidistantly along the outer circumference of the wheel swing plate 36; the number of strip grooves 362 is equal to the number of inner arc grooves 361, and each strip groove 362 is located between adjacent inner arc grooves 361. It should be noted that in this embodiment, the number of strip grooves 362 and the number of inner arc grooves 361 are equal to the number of interception areas 33, which is set to 6.

[0051] The crescent plate 141 is coaxially fixed to the side of the driving disk 14 away from the connecting shaft 313. In the initial state, the outer arc surface of the crescent plate 141 can abut against the inner arc surface of the inner arc groove 361, so that the positions of the wheel swing plate 36 and the hollow rotating cylinder 31 can be maintained; it should be noted here that the center line of the crescent plate 141 in this embodiment needs to be located on the virtual line of the outer edge of the wheel swing plate 36.

[0052] The driving column 142 is fixed to the side of the driving disk 14 away from the connecting shaft 313 and is eccentrically arranged with respect to the driving disk 14. When the first motor operates to drive the driving disk 14 to rotate, the driving column 142 can enter the strip groove 362, abut against the inner wall of the strip groove 362 and push the wheel pendulum plate 36 to rotate, so as to drive the hollow rotating drum 31 to rotate a specific angle; it can be known that after the hollow rotating drum 31 rotates circumferentially, one of the interception areas 33 can stay in a position opposite to the collection box 4, which is conducive to the cleaning component 34 to push the collected debris into the collection groove 43, so as to reduce the occurrence of debris remaining inside the interception area 33.

[0053] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sponge city rainwater collection system, characterized by: It comprises a collection box (1) arranged on the surface of a building roof and a water storage tank (2) arranged inside the building roof, wherein the collection box (1) and the water storage tank (2) are connected via a connecting pipe (21); A collecting chamber (11) is provided at the top of the collecting box (1), and a filtering mechanism (3) is provided at the opening of the collecting chamber (11); wherein the filtering mechanism (3) comprises a hollow rotating drum (31) and a water filtering screen (32); the hollow rotating drum (31) is rotatably mounted on the collecting box (1); a plurality of through grooves (311) are arranged at intervals on the outer peripheral surface of the hollow rotating drum (31); and each of the through grooves (311) penetrates the interior of the hollow rotating drum (31); The number of the water filter screen covers (32) and the through grooves (311) matches each other; the water filter screen covers (32) are fixed to the outer peripheral surface of the hollow drum (31) and cover the through grooves (311); a retention area (33) for retaining debris is formed between adjacent water filter screen covers (32), and each of the retention areas (33) is movably mounted with a cleaning assembly (34); The side of the collection box (1) is provided with an installation chamber (12) which is in communication with the collection chamber (11); a collection box (4) is detachably installed inside the installation chamber (12); the collection box (4) is provided with a collection trough (43) which is in communication with the collection chamber (11); when the hollow drum (31) rotates and one of the interception areas (33) is opposite to the collection trough (43), the cleaning assembly (34) moves outwards under the action of its own gravity to force the debris to automatically enter the collection trough (43).

2. The sponge city rainwater collection system according to claim 1 is characterized in that: The outer circumferential surface of the hollow rotating drum (31) is provided with a movable groove (312), and the movable groove (312) is located in the middle of two adjacent through grooves (311); the cleaning assembly (34) comprises an arc-shaped bottom plate (341) and a movable plate (342) connected to the inner arc surface of the arc-shaped bottom plate (341), and the movable plate (342) is movably inserted in the movable groove (312); the arc-shaped bottom plate (341) is located inside the interception area (33), and when the When the arc-shaped bottom plate (341) abuts against the outer peripheral wall of the hollow rotating drum (31), the arc-shaped bottom plate (341) abuts against two adjacent water filter screens (32) on both sides; an anti-slip portion (344) is provided on the side of the movable plate (342) away from the arc-shaped bottom plate (341); when the anti-slip portion (344) abuts against the inner peripheral wall of the hollow rotating drum (31), the outer arc surface of the arc-shaped bottom plate (341) is flush with the outer arc surface of the water filter screen (32).

3. The sponge city rainwater collection system according to claim 2 is characterized in that: The cleaning assembly (34) further comprises two arc-shaped side plates (343), the arc of the arc-shaped side plates (343) being the same as the arc of the arc-shaped bottom plate (341), and the two arc-shaped side plates (343) are respectively and movably embedded in two opposite side surfaces of the arc-shaped bottom plate (341) in the arc direction.

4. The sponge city rainwater collection system according to claim 1 is characterized in that: The side end surface of the hollow drum (31) is provided with a connecting shaft (313) which is inserted into the outside of the collecting box (1), and the exposed end of the connecting shaft (313) is fixed with a rotating mechanism (35) for rotating the hollow drum (31); wherein the rotating mechanism (35) comprises a rotating wheel (351) fixed to the connecting shaft (313) and a plurality of blades (352) arranged at intervals on the side of the rotating wheel (351), and each of the blades (352) is arranged in an inclined manner.

5. The sponge city rainwater collection system according to claim 1 is characterized in that: The side end surface of the hollow drum (31) is provided with a connecting shaft (313) which is passed through the outside of the collection box (1), and a wheel swing plate (36) is fixed to the connecting shaft (313); a first motor is fixedly embedded in the interior of the collection box (1), an output end of the first motor is passed through the outside of the collection box (1) and a driving plate (14) is fixed thereto, and a linkage structure is provided between the driving plate (14) and the wheel swing plate (36), so that the first motor can drive the wheel swing plate (36) to rotate when it is in operation.

6. The sponge city rainwater collection system according to claim 5 is characterized in that: The linkage structure comprises a crescent plate (141), a toggle column (142), an inner arc groove (361) and a strip groove (362), wherein the inner arc grooves (361) are provided in a plurality, and all the inner arc grooves (361) are arranged equidistantly along the outer circumference of the wheel swing plate (36); the strip grooves (362) match the inner arc grooves (361) in number, and each of the strip grooves (362) is located between adjacent inner arc grooves (361); The crescent plate (141) is coaxially fixed to the driving disk (14), and the toggle post (142) is eccentrically fixed to the driving disk (14); in an initial state, the outer arc surface of the crescent plate (141) abuts against the inner arc surface of the inner arc groove (361); when the first motor is in operation, the toggle post (142) can enter the strip groove (362) and force the wheel swing disk (36) to rotate.

7. The sponge city rainwater collection system according to claim 1 is characterized in that: It also includes green plant units (5) arranged on the roof surface of the building, wherein the green plant units (5) are provided in two groups and are respectively located on two opposite sides of the collection box (1); Spreading mechanisms (7) are respectively installed on two opposite sides of the collection box (1), wherein the spreading mechanism (7) comprises a hinged plate (71), a spreading plate (72) and a connecting rod (73); one side edge of the hinged plate (71) is hinged to the collection box (1), and the other side edge of the hinged plate (71) is rotatably connected to the spreading plate (72); one end of the connecting rod (73) is rotatably connected to the spreading plate (72), and a connection position between the connecting rod (73) and the spreading plate (72) and a connection position between the hinged plate (71) and the spreading plate (72) are spaced apart; There are a plurality of connecting rods (73), and one end of each connecting rod (73) away from the spreading plate (72) is commonly connected to a rotating rod (74). The end of the rotating rod (74) is provided with a driving assembly (75) for driving the rotating rod (74) to rotate; when the driving assembly (75) operates to force the spreading plate (72) to spread outward, the spreading plate (72) moves to above the green plant unit (5).

8. The sponge city rainwater collection system according to claim 7 is characterized in that: The driving assembly (75) comprises a worm wheel (751) fixed to the end of a rotating rod (74) and a worm (752) rotatably mounted on the surface of a building roof, wherein the worm (752) and the worm wheel (751) mesh with each other for transmission; two worms (752) arranged in two groups of the driving assemblies (75) are connected to each other, and the thread rotation directions of the two worms (752) are opposite, and one of the worms (752) is connected to a second motor (753) for rotating it.

9. The sponge city rainwater collection system according to claim 7, characterized in that: A solar panel (76) is embedded on the surface of the spreading plate (72) and the surface of the hinged plate (71); the solar panel (76) is electrically connected to a storage battery for supplying power to the second motor (753).

10. The sponge city rainwater collection system according to claim 7, characterized in that: The roof of the building is provided with a spray pipe (6) for spraying the green plant unit (5), and the water inlet end of the spray pipe (6) is connected to a pumping pipe (61); there are a plurality of water storage tanks (2), all of which are connected to the pumping pipe (61), and a pumping pump (62) is installed at the connection position between the pumping pipe (61) and each water storage tank (2).

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