A rainwater pipe outlet sponge flower box device

Abstract

This application relates to the field of rainwater treatment technology, and in particular to a sponge flower box device for rainwater pipe outlets, including a water storage tank, a filter assembly, and a plant flower box. The top of the water storage tank is open, and a partition rod is connected to the top of the water storage tank, dividing the opening of the water storage tank into a first opening and a second opening. The first opening is used to place the filter assembly, and the second opening is used to place the plant flower box. The filter assembly includes a filter box and filter elements. The filter box is connected to the partition rod and the water storage tank. The outlet of the rainwater collection pipe communicates with the opening of the filter box. The filter elements are connected to the inside of the filter box. An installation hole is opened on one side wall of the filter box near the middle of the water storage tank, and a filter plate is connected to the filter box at the installation hole. The top of the plant flower box is open, and the plant flower box is connected to the partition rod and the water storage tank. Multiple permeable holes are opened at the bottom of the plant flower box to allow water from the water storage tank to pass through. This application has the effect of organically combining multiple functions such as rainwater collection, filtration, storage, and irrigation.

Description

Technical Field

[0001] This application relates to the field of rainwater treatment technology, and in particular to a sponge flower box device for rainwater pipe outlet. Background Technology

[0002] With the acceleration of urbanization, the area of ​​hardened urban ground is constantly increasing, and the problem of rainwater runoff is becoming increasingly prominent. Effective rainwater collection and utilization can not only relieve the pressure on urban drainage systems and reduce the occurrence of urban flooding, but also provide water sources for urban greening, improve the urban ecological environment, and enhance the quality of life of residents.

[0003] There are several conventional methods for solving the problems of rainwater harvesting and utilization, as well as urban greening. On the one hand, for rainwater harvesting, the common approach is to build large rainwater harvesting ponds, through which rainwater is piped to and stored. This method can collect a large amount of rainwater, but it requires a large area and has high construction costs. On the other hand, to provide water for plants, artificial irrigation is usually used, which requires a lot of manpower and water resources. There are also some simple rainwater filtration devices, such as single-screen filters, which can only filter large particles of impurities in rainwater, and the filtration effect is limited. In addition, in terms of urban greening, traditional flower boxes are generally set up independently and lack effective integration with rainwater harvesting systems, making it impossible to achieve rainwater recycling.

[0004] Regarding the aforementioned technologies, large-scale rainwater harvesting ponds occupy a large area and have high construction costs, making them unsuitable for urban areas with scarce land resources. Manual irrigation consumes a large amount of manpower and water resources, which is inconsistent with the concept of sustainable development. Single-screen filtration devices are not effective at filtering rainwater and cannot effectively remove organic matter, odors, and small particulate impurities from rainwater. Traditionally independently set flower boxes are not connected to the rainwater harvesting system and cannot make full use of rainwater for irrigation, making it difficult to achieve the organic integration of multiple functions such as rainwater collection, filtration, storage, and irrigation. Utility Model Content

[0005] To overcome the above problems, this application provides a sponge flower box device for rainwater pipe outlet.

[0006] The sponge flower box device for rainwater pipe outlet provided in this application adopts the following technical solution: A sponge flower box device for rainwater pipe outlet includes a water storage tank, a filter assembly, and a plant flower box. The water storage tank is used to collect rainwater. The top of the water storage tank is open. A dividing rod is connected to the top of the water storage tank. The dividing rod is arranged along the length of one side of the water storage tank and divides the opening of the water storage tank into a first opening and a second opening. The first opening is used to place the filter assembly, and the second opening is used to place the plant flower box. The filtration assembly includes a filter box and a filter element for filtering rainwater. The top of the filter box is open, and the filter box is located inside the water storage tank. The top of the filter box is connected to the partition rod and the water storage tank. The outlet of the rainwater collection pipe is connected to the opening of the filter box. The filter element is connected inside the filter box. An installation hole is opened on one side wall of the filter box near the middle of the water storage tank. A filter plate for filtering rainwater is connected to the installation hole of the filter box. The top of the planter box is open for planting plants or flowers. The top of the planter box is connected to the partition rod and the water storage tank. The planter box is located inside the water storage tank. Multiple water-permeable holes are opened at the bottom of the planter box to allow water from the water storage tank to pass through.

[0007] By adopting the above technical solution, rainwater enters the filter box through the rainwater pipe outlet, is filtered by the filter components in the filter box, and then enters the water storage tank through the filter plate. As the water level in the water storage tank rises, the water in the water storage tank enters the plant box through the permeable holes to provide water for plant growth. This can realize the functions of rainwater collection, filtration and irrigation. The rainwater is collected by the water storage tank, filtered through multiple stages by the filter components and stored in the water storage tank. The rainwater in the water storage tank provides the water needed for plant growth through the permeable holes at the bottom of the plant box, forming a composite ecological cycle system that can create a sponge effect and meet the function of a sponge plant box.

[0008] In one specific implementation, the filter element includes a filter frame, multiple layers of filter media, and multiple screens. The filter frame is coaxially connected to the filter box. The multiple layers of filter media are arranged sequentially along the opening of the filter box to the bottom of the filter box. A screen is connected between two adjacent filter media. A screen is connected to the bottom of the bottom layer of filter media. A gap for impurity removal is left between the bottom of the filter frame and the bottom of the filter box. The bottom of the mounting hole is flush with the bottom of the filter box. The filter box has a drain outlet at the bottom, and a drain pipe is detachably connected to the drain outlet. The water storage tank has a cleaning port on its side wall, which is located near the bottom of the water storage tank. The other end of the drain pipe is connected to the cleaning port, and a drain valve is connected to the cleaning port of the water storage tank.

[0009] By adopting the above technical solution, the filter frame, multi-layer filter media and multiple meshes work together to filter rainwater in multiple stages. The impurity removal gaps facilitate the sedimentation of impurities, and the bottom of the mounting hole is flush with the bottom of the filter box to facilitate the discharge of impurities. The sewage outlet, sewage pipe, cleaning port and sewage valve work together to periodically discharge the sediment in the filter box, ensuring the filtration effect and normal operation of the device.

[0010] In one specific implementation, the height of the filter plate is higher than the top of the filter medium located at the highest layer. The water storage tank has a drain hole on its side wall near the filter box. The bottom of the drain hole is flush with the top of the filter medium located at the highest layer. An emergency drain pipe is connected to the water storage tank at the drain hole. The emergency drain pipe passes through the water storage tank and the filter box in sequence. The emergency drain pipe is connected to the water storage tank and the filter box in sequence.

[0011] By adopting the above technical solution, the height of the filter plate is higher than the top of the highest layer of filter media. When the water level in the water storage tank is higher than the top of the highest layer of filter media, the water in the water storage tank flows into the top of the highest layer of filter media through the filter plate and can be discharged from the emergency drain pipe. The bottom of the drain hole is flush with the top of the highest layer of filter media and is connected to the emergency drain pipe. In case of extreme rainfall, excessive rainwater can be discharged through the emergency drain pipe to avoid the water level in the water storage tank from being too high.

[0012] In one specific implementation, both the filter box and the plant box are detachably connected to the water storage tank. The water storage tank has a drain outlet on its side wall, which is located near the bottom of the water storage tank. The water storage tank is connected to a discharge pipe at the drain outlet, and a valve is connected to the discharge pipe.

[0013] By adopting the above technical solution, the filter box and plant box are detachably connected to the water storage tank, which facilitates the maintenance, replacement or cleaning of the filter box and plant box. The side wall of the water storage tank has an outlet near the bottom and is connected to a discharge pipe with a valve. On the one hand, water can be taken out through the outlet for emergency use during drought. On the other hand, when part of the planting layer in the plant box falls into the water storage tank through the water permeable holes, the water can be used to flush the inside of the water storage tank and discharge it through the outlet, keeping the inside of the water storage tank clean. At the same time, combined with the technical solution of claim 1, multiple functions such as rainwater collection, filtration, storage, irrigation and emergency water supply are realized, forming a composite ecological cycle system.

[0014] In one specific implementation scheme, the filter box is detachably connected to a protective plate at its opening, the protective plate has a water inlet, the outlet of the rainwater collection pipe is connected to the water inlet, and the rainwater collection pipe is detachably connected to the protective plate.

[0015] By adopting the above technical solution, the protective plate can protect the opening of the filter box and prevent debris from directly entering the filter box; the water inlet is connected to the outlet of the rainwater collection pipe, which allows rainwater to flow smoothly into the filter box; the detachable connection of the protective plate and the rainwater collection pipe makes it convenient to replace and maintain the protective plate and the rainwater collection pipe.

[0016] In one specific implementation, the water storage tank has a first annular groove at the first opening, and the filter box has a first overlapping ring fitted on its side wall. The first overlapping ring is close to the top of the filter box, and the top of the first overlapping ring is flush with the top of the filter box. When the filter box is placed into the water storage tank through the first opening, the first overlapping ring fits into the first annular groove. The water storage tank has a second annular groove at the first opening, and a second overlapping ring is fitted onto the side wall of the plant box. The second overlapping ring is close to the top of the plant box, and the top of the second overlapping ring is flush with the top of the plant box. When the plant box is placed into the water storage tank through the second opening, the second overlapping ring fits into the second annular groove.

[0017] By adopting the above technical solution, the first overlapping ring of the side wall of the filter box fits into the first ring groove at the first opening of the water storage tank, and the second overlapping ring of the side wall of the plant box fits into the second ring groove at the second opening of the water storage tank. This ensures the stability of the filter box and the plant box placed in the water storage tank, facilitates the installation and positioning of the filter box and the plant box, and, in conjunction with other structures in the overall solution, realizes the functions of rainwater collection, filtration, storage, irrigation, and emergency water supply.

[0018] In one specific implementation, the water storage tank is provided with a fixing member on the partition rod. The fixing member includes two fixing rods. A fixing cavity is opened in the middle of the partition rod, and both fixing rods are located in the fixing cavity. The fixing rods are arranged perpendicular to the partition rod and symmetrically arranged along the axis of the partition rod. One fixing rod passes through the partition rod and extends into the first annular groove, and the other fixing rod passes through the partition rod and extends into the second annular groove. The two fixing rods are elastically slidably connected to the partition rod on either side that are closer to or further away from each other. The side walls of the first overlapping ring and the second overlapping ring are respectively provided with a first insertion hole and a second insertion hole for the corresponding fixing rod to be inserted.

[0019] By adopting the above technical solution, the filter box and the plant box are placed in the water storage tank respectively. At this time, the first overlapping ring is located in the first ring groove and the second overlapping ring is located in the second ring groove. Then, the personnel simultaneously drive the two fixing rods and insert them into the first insertion hole and the second insertion hole respectively, thus ensuring the stability of the filter box and the plant box in the water storage tank.

[0020] In one specific implementation, the fixing component further includes a conical pusher block and a screw. The conical pusher block is located inside the fixing cavity, and its diameter gradually decreases from the top to the bottom of the water storage tank. The fixing rod is located at one end of the fixing cavity and abuts against the conical pusher block. The conical pusher block slides back and forth along the side from the top to the bottom of the water storage tank. The conical pusher block can simultaneously push the two fixing rods to move. The screw is perpendicular to the partition rod and extends from the top to the bottom of the water storage tank. The screw passes through the partition rod, extends into the fixing cavity, and is coaxially rotatably connected to the conical pusher block. The screw is threadedly connected to the partition rod.

[0021] By adopting the above technical solution, the conical pusher block is pushed by the screw to insert or disengage the fixing rod into the first insertion hole and the second insertion hole, thereby fixing and separating the filter box and plant box from the water storage tank, ensuring the stability of the filter box and plant box in the water storage tank.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The designed rainwater pipe outlet sponge flower box device allows rainwater to enter the filter box through the rainwater pipe outlet. The water is filtered by the filter elements in the filter box, and the filtered rainwater enters the water storage tank through the filter plate. As the water level in the water storage tank rises, the water in the water storage tank enters the plant flower box through the permeable holes to provide water for plant growth. It can realize the functions of rainwater collection, filtration and irrigation. The rainwater is collected by the water storage tank, filtered through multiple stages by the filter components and stored in the water storage tank. The rainwater in the water storage tank provides the water needed for plant growth through the permeable holes at the bottom of the plant flower box, forming a composite ecological cycle system that can create a sponge effect and meet the function of sponge flower box.

[0023] 2. The designed rainwater pipe outlet sponge flower box device, with filter frame, multi-layer filter media and multiple mesh screens, can perform multi-stage filtration of rainwater. The impurity removal gap facilitates the sedimentation of impurities, and the bottom of the installation hole is flush with the bottom of the filter box to facilitate the discharge of impurities. The sewage outlet, sewage pipe, cleaning port and sewage valve work together to regularly discharge the sediment in the filter box, ensuring the filtration effect and normal operation of the device.

[0024] 3. The designed rainwater pipe outlet sponge flower box device has a first overlapping ring on the side wall of the filter box that fits into the first ring groove at the first opening of the water storage tank, and a second overlapping ring on the side wall of the plant flower box that fits into the second ring groove at the second opening of the water storage tank. This ensures the stability of the filter box and the plant flower box when placed in the water storage tank and facilitates the installation and positioning of the filter box and the plant flower box. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the sponge flower box device at the rainwater pipe outlet in an embodiment of this application.

[0026] Figure 2 This is a cross-sectional view of this embodiment.

[0027] Figure 3 This is a structural schematic diagram of the fastener in this embodiment.

[0028] Explanation of reference numerals in the attached drawings: 1. Water storage tank; 11. Divider rod; 12. First annular groove; 13. Drain hole; 14. Emergency drain pipe; 15. Cleaning port; 16. Second annular groove; 17. Outlet; 18. Discharge pipe; 19. Fixing component; 191. Fixing rod; 192. Spring; 193. Conical pusher block; 194. Screw; 2. Filter assembly; 21. Filter box; 211. First overlapping ring; 212. Protective plate; 2121. Water inlet; 213. Mounting hole; 214. Filter plate; 215. Sewage outlet; 216. Sewage pipe; 22. Filter element; 221. Filter frame; 222. Filter medium; 2221. Gravel layer; 2222. Activated carbon layer; 2223. Sand and gravel layer; 223. Partition net; 3. Plant box; 31. Second overlapping ring; 32. Water permeable hole. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0030] This application discloses a sponge flower box device for rainwater pipe outlet.

[0031] Reference Figure 1 and Figure 2 A sponge flower box device for rainwater pipe outlet includes a water storage tank 1, a filter assembly 2, and a plant flower box 3, with the filter assembly 2 and the plant flower box 3 both located inside the water storage tank 1.

[0032] Reference Figure 1 and Figure 2 The water storage tank 1 is a rectangular box that collects rainwater. The top of the water storage tank 1 is open. The water storage tank 1 is generally made of welded steel plate, which has a certain strength and sealing performance. The top of the water storage tank 1 is equipped with a partition rod 11, which is set along the length of one side of the water storage tank 1. Both ends of the partition rod 11 are welded to the water storage tank 1. The partition rod 11 divides the opening of the water storage tank 1 into a first opening and a second opening of different sizes, with the first opening being smaller than the second opening. The first opening is used to place the filter assembly 2, and the second opening is used to place the plant flower box 3. Promotional signs can be posted on the side wall of the water storage tank 1 to guide and promote, and to enhance the aesthetics of the outdoor space.

[0033] Reference Figure 1 and Figure 2The filter assembly 2 includes a filter box 21 and a filter element 22. The water storage tank 1 has a first annular groove 12 at the first opening. The top of the filter box 21 is open. A first overlapping ring 211 is fitted on the side wall of the filter box 21. The first overlapping ring 211 is welded to the filter box 21. The first overlapping ring 211 is close to the top of the filter box 21, and the top of the first overlapping ring 211 is flush with the top of the filter box 21. When the filter box 21 is placed into the water storage tank 1 through the first opening, the first overlapping ring 211 is located in the first annular groove 12. The first overlapping ring 211 fits into the first ring groove 12. The first sealing ring is fixedly bonded to the periphery of the first overlapping ring 211. The filter box 21 is provided with a protective plate 212 at the opening. One side of the protective plate 212 is hinged to the filter box 21. The side of the protective plate 212 away from the hinge end is detachably connected to the filter box 21 by a snap fastener. The protective plate 212 is provided with a water inlet 2121. The water outlet of the rainwater collection pipe is connected to the water inlet 2121, and the rainwater collection pipe is detachably connected to the protective plate 212 by a flange.

[0034] Reference Figure 2 The filter element 22 includes a filter frame 221, multiple layers of filter media 222, and multiple meshes 223. The filter frame 221 is coaxially located inside the filter box 21 and is detachably connected to the filter box 21 by screws. The multiple layers of filter media 222 are arranged along the water flow direction. In this embodiment, the filter media 222 consists of three layers. From the opening of the filter box 21 to the bottom of the filter box 21, the three layers of filter media 222 are, in sequence, a gravel layer 2221, an activated carbon layer 2222, and a sand and gravel layer 2223. Adjacent layers are separated by meshes 223. The bottom of the sand and gravel layer 2223 is also provided with meshes 223. The stone layer 2221 mainly serves as a preliminary filter for large particles of impurities. The gravel is generally made of hard, weather-resistant rock particles with a relatively large particle size. The activated carbon layer 2222 has a strong adsorption capacity and can adsorb organic matter and odors in rainwater. The sand and gravel layer 2223 further filters smaller particles. The mesh 223 is made of corrosion-resistant metal or plastic mesh and is used to separate different filter media 222 layers to prevent them from mixing. The mesh 223 is detachably connected to the filter frame 221 by screws, which facilitates the replacement of the filter media 222 as the usage time increases.

[0035] Reference Figure 2A gap for impurity removal is left between the bottom of the filter frame 221 and the bottom of the filter box 21. An installation hole 213 is opened on one side wall of the filter box 21 near the middle of the water storage tank 1. The bottom of the installation hole 213 is flush with the bottom of the filter box 21. A filter plate 214 is provided at the installation hole 213 in the filter box 21. The filter plate 214 is welded to the filter box 21. The filter plate 214 can further filter the rainwater that has passed through the filter medium 222. The height of the filter plate 214 is higher than the top of the gravel layer 2221. A drain hole 13 is opened on the side wall of the water storage tank 1 near the filter box 21. The bottom of the drain hole 13 is flush with the top of the gravel layer 2221. An emergency drain pipe 14 is provided at the drain hole 13. The emergency drain pipe 14 is connected to the drain hole 13 and is sequentially installed through the water storage tank 1 and the filter box 21. The emergency drain pipe 14 can be made of plastic or stainless steel. The emergency drain pipe 14 is fixedly connected to the water storage tank 1 and the filter box 21 by screws. The connection between the emergency drain pipe 14 and the water storage tank 1 is sealed with sealant. In case of extreme rainfall, excess rainwater can be discharged through the emergency drain pipe 14. When there is excess water in the water storage tank 1, it can flow into the filter box 21 through the filter plate 214 and be discharged through the emergency drain pipe 14.

[0036] Reference Figure 2 The filter box 21 has a drain outlet 215 at the bottom, and a drain pipe 216 is provided at the drain outlet 215. One end of the drain pipe 216 is connected to the drain outlet 215. A cleaning port 15 is provided on the side wall of the water storage tank 1. The cleaning port 15 is close to the bottom of the water storage tank 1. The other end of the drain pipe 216 is connected to the cleaning port 15. When there is sediment in the filter box 21 after a long period of use, it can be discharged through the drain pipe 216. The water storage tank 1 has a drain valve at the cleaning port 15. The drain pipe 216 is detachably connected to the bottom of the filter box 21 through a flange. The connection between the drain pipe 216 and the water storage tank 1 is sealed with sealant. Rainwater enters the filter box 21 through the rainwater collection pipe and is filtered through the multi-layer filter media 222 and filter plate 214. The treated rainwater enters the water storage tank 1 for storage. The sediment in the filter box 21 is discharged through the drain pipe 216, forming a sedimentation filtration system.

[0037] Reference Figure 2The water storage tank 1 has a second annular groove 16 at the second opening. The plant box 3 is open-topped and filled with a planting layer composed of a mixture of humus and a water-retaining agent. The humus is rich in nutrients, and the water-retaining agent helps retain soil moisture, providing a good environment for plant growth. A second overlapping ring 31 is fitted onto the side wall of the plant box 3 and welded to it. The second overlapping ring 31 is close to the top of the plant box 3, and its top is flush with the top of the plant box 3. When the plant box 3 is placed in the water storage tank 1 through the second opening, the second overlapping ring 31 is located in the second annular groove 16 and fits into the second annular groove 16. A second sealing gasket is fixedly bonded to the periphery of the second overlapping ring 31. The bottom of the plant box 3 is higher than the bottom of the filter box 21 and lower than the top of the filter plate 214. Multiple water permeable holes 32 are provided at the bottom of the plant box 3. The pores are evenly distributed in the central area, with a diameter of 3-8 mm. The side wall of the water storage tank 1 has an outlet 17, which is close to the bottom of the water storage tank 1. The water storage tank 1 is connected to the outlet 17 by a discharge pipe 18. A valve is fixedly connected to the discharge pipe 18 by a flange. On the one hand, during the drought period, water can be taken out through the outlet 17 for emergency use. On the other hand, when part of the planting layer in the plant flower box 3 falls into the water storage tank 1 through the permeable holes 32, the water in the water storage tank 1 is rinsed and discharged from the outlet 17, keeping the water storage tank 1 clean. Rainwater enters the filter box 21 through the rainwater collection pipe, and after being treated by multiple layers of filter media 222 and filter plates 214, it flows into the water storage tank 1. When the water level in the water storage tank 1 is higher than the bottom of the plant flower box 3, the rainwater supplies water to the planting layer through the permeable holes 32 to facilitate plant growth, forming an ecological cycle system that can purify the air, release oxygen from the plants and flowers, and improve the quality of life.

[0038] Reference Figure 2 and Figure 3The water storage tank 1 is equipped with a fixing member 19 on the partition rod 11. The fixing member 19 includes two fixing rods 191, two springs 192, a conical pusher block 193, and a screw 194. A fixing cavity is opened in the middle of the partition rod 11, and both fixing rods 191 are located in the fixing cavity. The fixing rods 191 are arranged perpendicular to the partition rod 11 and symmetrically arranged along the axis of the partition rod 11. One fixing rod 191 passes through the partition rod 11 and extends into the first annular groove 12, and the other fixing rod 191 passes through the partition rod 11 and extends into the second annular groove 16. Both are slidably connected to the partition rod 11. The two fixed rods 191 move toward each other or away from each other. The side walls of the first overlapping ring 211 and the second overlapping ring 31 are respectively provided with a first insertion hole and a second insertion hole for the fixed rods 191 to be inserted. The fixed rod 191 extending into the first ring groove 12 fits into the first insertion hole, and the fixed rod 191 extending into the second ring groove 16 fits into the second insertion hole. The spring 192 corresponds to the fixed rod 191 one by one. The spring 192 is sleeved on one end of the fixed rod 191 located in the fixed cavity. One end of the spring 192 is welded to the partition rod 11, and the other end is welded to the fixed rod 191.

[0039] Reference Figure 2 and Figure 3 A conical pusher block 193 is located inside a fixed cavity. The diameter of the conical pusher block 193 gradually decreases from the top of the water storage tank 1 to one side of the bottom of the water storage tank 1. A fixed rod 191 is located at one end of the fixed cavity and abuts against the conical pusher block 193. The conical pusher block 193 slides back and forth along one side of the water storage tank 1 from the top to the bottom of the water storage tank 1. The conical pusher block 193 can simultaneously push two fixed rods 191 to move. A screw 194 is set perpendicular to the partition rod 11 and is set from one side of the top to the bottom of the water storage tank 1. The screw 194 passes through the partition rod 11 and extends into the fixed cavity, where it is coaxially rotatably connected to the conical pusher block 193. The screw 194 is threadedly connected to... When the separator rod 11 is turned, the screw 194 is turned by the operator, and the conical pusher block 193 moves closer to the bottom of the water storage tank 1. This drives the two fixing rods 191 to insert into the first insertion hole and the second insertion hole. At this time, the spring 192 is compressed, further fixing the filter box 21 and the plant box 3. When it is necessary to separate the filter box 21 and the plant box 3 from the water storage tank 1, the operator turns the screw 194 in the opposite direction, causing the conical pusher block 193 to move away from the bottom of the water storage tank 1. At this time, the spring 192 returns to its original shape, and the two fixing rods 191 separate from the first insertion hole and the second insertion hole, thus separating the filter box 21 and the plant box 3 from the water storage tank 1.

[0040] The implementation principle of the sponge flower box device with rainwater pipe outlet in this application embodiment is as follows: Rainwater enters the filter box 21 from the rainwater pipe outlet, first passes through the gravel layer 2221 to filter large particles of impurities, then passes through the activated carbon layer 2222 to adsorb organic matter and odors, and then passes through the sand and gravel layer 2223 to further filter small particles. The rainwater that has undergone multi-stage filtration flows into the water storage tank 1 through the filter plate 214 for storage. The rainwater in the water storage tank 1 supplies water to the soil in the plant flower box 3 through the permeable holes 32 at the bottom of the plant flower box 3, providing water for plant growth. When there is sediment in the filter box 21, it can be discharged through the sewage pipe 216. In extreme rainfall, excess rainwater can be discharged through the emergency pipe; in drought periods, water can be taken out through the outlet 17 for emergency use. This combined logic realizes multiple functions such as rainwater collection, filtration, storage, irrigation and emergency water supply, forming a composite ecological cycle system that can form a sponge effect and meet the functions of the sponge flower box. The setting of the fixing component 19 ensures the stability of the filter box 21 and the plant flower box 3 in the water storage tank 1.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sponge flower box device for rainwater pipe outlet, characterized in that: The device includes a water storage tank (1), a filter assembly (2), and a planter box (3). The water storage tank (1) is used to collect rainwater. The top of the water storage tank (1) is open. A partition rod (11) is connected to the top of the water storage tank (1). The partition rod (11) is set along the length of one side of the water storage tank (1). The partition rod (11) divides the opening of the water storage tank (1) into a first opening and a second opening. The first opening is used to place the filter assembly (2), and the second opening is used to place the planter box (3). The filter assembly (2) includes a filter box (21) and a filter element (22) for filtering rainwater. The top of the filter box (21) is open. The filter box (21) is located inside the water storage tank (1). The top of the filter box (21) is connected to the partition rod (11) and the water storage tank (1). The outlet of the rainwater collection pipe is connected to the opening of the filter box (21). The filter element (22) is connected inside the filter box (21). The filter box (21) is close to the water storage tank (1). A mounting hole (213) is provided on one side wall of the middle section. The filter box (21) is connected to a filter plate (214) for filtering rainwater at the mounting hole (213). The top of the plant box (3) is open and used for planting plants or flowers. The top of the plant box (3) is connected to the partition rod (11) and the water storage tank (1). The plant box (3) is located inside the water storage tank (1). The bottom of the plant box (3) is provided with multiple water-permeable holes (32) for water in the water storage tank (1) to pass through.

2. A rainwater pipe outlet sponge flower box device according to claim 1, characterized in that: The filter element (22) includes a filter frame (221), multiple layers of filter media (222), and multiple partitions (223). The filter frame (221) is coaxially connected to the filter box (21). The multiple layers of filter media (222) are arranged sequentially along the opening of the filter box (21) to the bottom of the filter box (21). A partition (223) is connected between two adjacent filter media (222). A partition (223) is connected to the bottom of the bottom layer of filter media (222). A gap for impurity removal is left between the bottom of the filter frame (221) and the bottom of the filter box (21). The bottom of the mounting hole (213) is flush with the bottom of the filter box (21). The filter box (21) has a drain port (215) at the bottom. The filter box (21) is detachably connected to the drain port (215) with a drain pipe (216). The water storage tank (1) has a cleaning port (15) on its side wall. The cleaning port (15) is close to the bottom of the water storage tank (1). The other end of the drain pipe (216) is connected to the cleaning port (15). The water storage tank (1) is connected to a drain valve at the cleaning port (15).

3. A rainwater downpipe outlet gully device according to claim 2, wherein: The height of the filter plate (214) is higher than the top of the filter medium (222) located at the highest layer. The water storage tank (1) has a drain hole (13) on its side wall near the filter box (21). The bottom of the drain hole (13) is flush with the top of the filter medium (222) located at the highest layer. An emergency drain pipe (14) is connected to the water storage tank (1) at the drain hole (13). The emergency drain pipe (14) passes through the water storage tank (1) and the filter box (21) in sequence. The emergency drain pipe (14) is connected to the water storage tank (1) and the filter box (21) in sequence.

4. A rainwater downpipe outlet gully device according to claim 2, wherein: The filter box (21) and the plant flower box (3) are detachably connected to the water storage tank (1). The water storage tank (1) has a drain outlet (17) on its side wall. The drain outlet (17) is close to the bottom of the water storage tank (1). The water storage tank (1) is connected to a discharge pipe (18) at the drain outlet (17). A valve is connected to the discharge pipe (18).

5. A rainwater downpipe outlet gully device according to claim 4, wherein: The filter box (21) is detachably connected to a protective plate (212) at the opening. The protective plate (212) has a water inlet (2121). The water outlet of the rainwater collection pipe is connected to the water inlet (2121). The rainwater collection pipe is detachably connected to the protective plate (212).

6. A rainwater downpipe outlet gully device according to claim 4, wherein: The water storage tank (1) has a first annular groove (12) at the first opening. The filter box (21) has a first overlapping ring (211) sleeved on its side wall. The first overlapping ring (211) is close to the top of the filter box (21). The top of the first overlapping ring (211) is flush with the top of the filter box (21). When the filter box (21) is placed into the water storage tank (1) through the first opening, the first overlapping ring (211) fits into the first annular groove (12). The water storage tank (1) has a second annular groove (16) at the first opening. The plant flower box (3) has a second overlapping ring (31) fitted on its side wall. The second overlapping ring (31) is close to the top of the plant flower box (3). The top of the second overlapping ring (31) is flush with the top of the plant flower box (3). When the plant flower box (3) is placed in the water storage tank (1) through the second opening, the second overlapping ring (31) fits into the second annular groove (16).

7. A rainwater downpipe outlet gully device according to claim 6, wherein: The water storage tank (1) is provided with a fixing member (19) on the partition rod (11). The fixing member (19) includes two fixing rods (191). A fixing cavity is opened in the middle of the partition rod (11). Both fixing rods (191) are located in the fixing cavity. The fixing rods (191) are arranged perpendicular to the partition rod (11). The two fixing rods (191) are arranged symmetrically along the axis of the partition rod (11). One fixing rod (191) passes through the partition rod (11) and extends into the first annular groove (12). The other fixing rod (191) passes through the partition rod (11) and extends into the second annular groove (16). The two fixing rods (191) are elastically slidably connected to the partition rod (11) on either side that are closer to or further away from each other. The side walls of the first overlapping ring (211) and the second overlapping ring (31) are respectively provided with a first insertion hole and a second insertion hole for the corresponding fixing rods (191) to be inserted.

8. A rainwater downpipe outlet gully device according to claim 7, characterised in that: The fixing member (19) further includes a conical pusher block (193) and a screw (194). The conical pusher block (193) is located in the fixing cavity. The diameter of the conical pusher block (193) gradually decreases from the top of the water storage tank (1) to the bottom of the water storage tank (1). The fixing rod (191) is located at one end of the fixing cavity and abuts against the conical pusher block (193). The conical pusher block (193) slides back and forth along the side from the top of the water storage tank (1) to the bottom of the water storage tank (1). The conical pusher block (193) can simultaneously push the two fixed rods (191) to move. The screw (194) is set perpendicularly to the partition rod (11). The screw (194) is set from the top of the water storage tank (1) to the bottom side of the water storage tank (1). The screw (194) passes through the partition rod (11) and extends into the fixed cavity, and is coaxially rotatably connected to the conical pusher block (193). The screw (194) is threadedly connected to the partition rod (11).

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