Water plant water body purification device with integrated aeration function

Abstract

The application provides an integrated water plant water body purification device with an aeration function, and belongs to the technical field of purification devices. The device comprises a floating platform, a plurality of partitions are arranged on the floating platform, and the plurality of partitions divide the floating platform into a planting area and a collection area. A plurality of adjusting assemblies and a collection frame are arranged in the collection area. The adjusting assembly comprises an adjusting capsule and a gas storage capsule. The adjusting capsule is arranged on the floating platform and is immersed in the water body at the bottom. The collection frame is installed on the plurality of adjusting capsules. An aeration member is arranged below an aeration contact section. A pressurizing hole is arranged in the sidewall of the aeration contact section. The pressurizing hole is communicated with the gas inlet end of the gas storage capsule through a first gas guide pipe. A one-way valve is arranged on the first gas guide pipe. A plurality of water inlet pipes are arranged on the pressure adjusting section. A duckbill valve is arranged on the water inlet pipe. A first gas inlet pipe and an exhaust pipe are arranged on the top of the gas hole guide section. The first gas inlet pipe is communicated with the gas storage capsule through a second gas guide pipe. A one-way throttle valve is arranged on the second gas guide pipe. A pressure exhaust valve is arranged on the exhaust pipe. The device simultaneously realizes the plant purification and oxygenation functions.

Description

Technical Field

[0001] This invention relates to the field of purification device technology, and more specifically, to an aquatic plant water purification device with integrated aeration function. Background Technology

[0002] In the ecological management of urban landscape water bodies, rural ponds and small lakes, aquatic plant purification technology is often used to improve the eutrophication state of water bodies and enhance their self-purification capacity. At this time, it is necessary to use aquatic plant purification devices to absorb and degrade pollutants such as nitrogen and phosphorus in the water body, so as to facilitate the construction of a stable aquatic ecosystem.

[0003] However, traditional aquatic plant purification devices are mostly single-plant floating beds that lack aeration and oxygenation functions. As a result, during the purification process, due to poor water flow and low dissolved oxygen content, the microbial activity of aquatic plant roots is inhibited, and an anaerobic environment easily forms at the bottom of the water body. Under the action of anaerobic microorganisms, pollutants in the bottom sediment are easily released back into the water body, causing secondary pollution. This not only affects the plant purification efficiency and prolongs the purification cycle, but also increases the system construction cost and operation and maintenance difficulty due to the need for additional aeration equipment, thus limiting the promotion and application of aquatic plant purification technology. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an aquatic plant water purification device with integrated aeration function. This addresses the technical issue that in the prior art, traditional devices lack aeration and oxygenation functions, leading to the inhibition of microbial activity in the roots of aquatic plants during the purification process due to poor water flow and low dissolved oxygen content, while an anaerobic environment easily forms at the bottom of the water body.

[0005] The purpose and effectiveness of the aquatic plant water purification device with integrated aeration function of the present invention are achieved by the following specific technical means:

[0006] This invention provides an aquatic plant water purification device with integrated aeration function, including a floating platform. The floating platform is provided with multiple sets of partitions, which divide the floating platform into a planting area and a collection area for cultivating aquatic purification plants.

[0007] The collection area is equipped with multiple sets of adjustment components and collection frames. The adjustment components include adjustment bladders and air storage bladders. The adjustment bladders are inserted through the floating platform and their bottoms are immersed in the water. The collection frames are installed on the multiple sets of adjustment bladders.

[0008] The regulating capsule has a three-section structure, from bottom to top as follows:

[0009] An aeration contact section is used for water aeration and drainage. An aeration element is provided below the aeration contact section. A pressurization hole is opened on the side wall of the aeration contact section. The pressurization hole is connected to the air inlet of the air storage bag through a first air guide pipe. A one-way valve is provided on the first air guide pipe.

[0010] The pressure regulating section is used for water introduction and pressure balancing. The pressure regulating section is equipped with multiple sets of water inlet pipes, and each water inlet pipe is equipped with a duckbill valve.

[0011] The air vent guide section is used for gas on / off control and linkage adjustment. The top of the air vent guide section is provided with a first air inlet pipe and an exhaust pipe. The first air inlet pipe is connected to the air storage bag through a second air guide pipe. The second air guide pipe is provided with a one-way throttle valve, and the exhaust pipe is provided with a pressure exhaust valve.

[0012] According to a preferred embodiment, the aeration contact section is provided with a squeezing plate, and a pressure spring and a return spring are respectively provided on both sides of the squeezing plate. One end of the pressure spring is connected to the top of the aeration contact section and the other end is connected to the top of the squeezing plate. One end of the return spring is connected to the bottom of the aeration contact section and the other end is connected to the bottom of the squeezing plate.

[0013] The extrusion plate is provided with a drain pipe, one end of which passes through the aeration contact section and extends into the water body. The aeration element is installed at the end of the drain pipe away from the extrusion plate.

[0014] The drain pipe is equipped with a pressure-triggered one-way valve.

[0015] According to a preferred embodiment, the aeration element includes a rotating base, one end of which is rotatably connected to the drain pipe, and the bottom of the rotating base is provided with multiple sets of guide vanes, which are arc-shaped structures.

[0016] The outer wall of the rotating base is provided with multiple sets of baffles, and a flow guiding channel is formed between adjacent baffles. Multiple sets of aeration holes are opened on the flow guiding channel.

[0017] According to a preferred embodiment, a piston rod is provided in the air hole guide section, one end of the piston rod extends to the pressure regulating section, and a piston spring is sleeved on the piston rod, the piston spring being engaged in the air hole guide section.

[0018] According to a preferred embodiment, an adjustment groove is provided in the pressure adjustment section, a partition ring for closing the water inlet pipe is provided in the adjustment groove, a shaft seat is provided at the top of the adjustment groove, and multiple sets of first guide grooves are provided on the side wall of the adjustment groove, with pressure blocks slidably provided on the first guide grooves;

[0019] The bottom of the first guide groove is provided with a rotating column, and two sets of magnetic sheets are symmetrically arranged on the rotating column. The bottom of the pressure block is provided with a magnetic block, and the top of the partition ring is provided with multiple sets of connecting ears. The connecting ears are connected to the pressure block by a connecting line, and the connecting line is wound around the shaft seat.

[0020] The piston rod is provided with a magnetic ring at one end of the pressure regulating section, and a second guide groove is provided on the inner side wall of the pressure regulating section. The magnetic ring is slidably disposed in the second guide groove and is magnetically connected to the pressure block.

[0021] According to a preferred embodiment, the air sac is provided with a baffle, which divides the air sac into a balance chamber and a pressurization chamber from bottom to top. A second air inlet pipe is provided at the bottom of the air sac. The second air inlet pipe passes through the baffle and extends into the pressurization chamber. A balance spring is provided at the bottom of the baffle. The balance spring is located in the balance chamber. A damping ring is sleeved on the baffle.

[0022] According to a preferred embodiment, the cross-sectional area ratio of the aeration contact section to the pressure regulating section and the air hole guide section is 10:4:1;

[0023] The length ratio of the aeration contact section to the pressure regulating section and the air hole guide section is 1:3:5.

[0024] According to a preferred embodiment, the edge of the planting area is provided with multiple sets of guide plates, which divide the planting area into multiple sets of three-level planting platforms. A collection channel is formed between two adjacent sets of guide plates. One end of the collection channel extends to the collection frame. An interception filter is provided inside the collection frame. A one-way valve plate is provided at the end of the collection channel away from the collection frame.

[0025] The top of the guide plate is provided with a cover plate, and the bottom of the cover plate is provided with multiple sets of guide blocks and one-way guide sleeves. The one-way guide sleeves extend into the collection frame, and the collection channel is connected to the guide blocks, the one-way guide sleeves and the collection frame in sequence.

[0026] According to a preferred embodiment, the three-level planting platform, from the edge to the center, is a floating plant planting platform, a floating leaf plant planting platform, and an emergent plant planting platform, respectively.

[0027] The three planting platforms are connected by a guide channel, and the water inlet end of the guide channel is equipped with an interception grid.

[0028] The floating plant planting platform has an annular positioning groove on its edge, a grid planting frame is provided in the annular positioning groove, and a counterweight is provided at the bottom of the grid planting frame;

[0029] An adjustment plate is provided above the floating-leaf plant planting platform. The adjustment plate is connected to the floating-leaf plant planting platform through a telescopic support column. Honeycomb-shaped planting holes are provided on the adjustment plate.

[0030] The bottom of the emergent plant planting platform is covered with a composite purification substrate, and the top of the composite purification substrate is equipped with a protective cover plate, and the top of the protective cover plate is equipped with multiple sets of elastic fixing rings.

[0031] According to a preferred embodiment, the bottom of the floating platform is provided with a protective cover, which covers the water area directly below the planting area. The protective cover has multiple sets of ventilation holes, one end of which is provided with a diversion grid, and a spiral guide plate is provided inside the ventilation hole.

[0032] The bottom of the emergent plant planting platform is equipped with a connecting pipe, which passes through the protective cover and is connected at one end to the guide channel.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. This invention, through the design of the regulating bladder, enables the device to simultaneously achieve aquatic plant purification and aeration functions, enhancing its versatility and integration. The device utilizes the squeezing plate and pressure-triggered one-way valve in the aeration contact section, in conjunction with the aeration components, and combines the gas buffering and pressure transmission of the air storage bladder to deliver air bubbles to the water body. This increases the dissolved oxygen content, inhibits anaerobic microbial activity, prevents secondary release of pollutants from bottom sediment, and improves the device's ability to improve the aquatic environment.

[0035] 2. When using this device, the stepped distribution of the three-tiered planting platform, combined with the flow guiding structure, enhances the adsorption and degradation of pollutants such as nitrogen and phosphorus by plant roots, thereby improving the purification efficiency of the device. Simultaneously, the spiral flow guide vanes with protective covers and ventilation holes enhance water-air exchange, further assisting in aeration and oxygenation. This synergistic effect of plant purification and aeration allows the device to adapt to water bodies with varying levels of pollution, reducing reliance on additional aeration equipment, lowering system costs and maintenance complexity, and improving the device's practicality and economy.

[0036] 3. This invention, through the linkage structure of the magnetic ring, rotating column, and isolation ring within the pressure regulating section, enables the device to achieve adaptive pressure adjustment, thus improving its operational stability. The device can control the opening and closing of the inlet pipe and water pressure by sliding the piston rod, thereby matching the aeration rhythm with the plant's purification needs. This prevents component damage or purification interruption due to sudden pressure changes. Simultaneously, the size ratio of the aeration contact section, pressure regulating section, and air hole guide section amplifies the pressure, ensuring aeration effectiveness and improving the device's adaptability under different operating conditions. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the assembly structure of the invention;

[0038] Figure 2 This is a schematic diagram of the disassembled structure of the invention;

[0039] Figure 3 yes Figure 2 Enlarged view of region a in the middle;

[0040] Figure 4 This is a schematic diagram of the adjustment component of the invention;

[0041] Figure 5 This is a schematic diagram of the internal structure of the adjustment component of the invention;

[0042] Figure 6 This is a schematic diagram of the internal structure of the aeration element of the invention;

[0043] Figure 7 This is a schematic diagram of the disassembled structure of the aeration element of the invention;

[0044] Figure 8 This is a schematic diagram of the internal structure of the pore guide section of the invention.

[0045] Figure 9 This is a schematic diagram of the pressure regulating section of the invention;

[0046] Figure 10 yes Figure 9 Enlarged view of region b in the middle;

[0047] Figure 11 yes Figure 9 Enlarged view of region c in the middle;

[0048] Figure 12 This is a schematic diagram of the internal structure of the pressure regulating section of the invention;

[0049] Figure 13 This is a schematic diagram of the internal structure of the air bladder of this invention;

[0050] Figure 14 This is a schematic diagram of the internal structure of the cover plate of the invention;

[0051] Figure 15 This is a schematic diagram of the internal structure of the three-stage planting platform of this invention;

[0052] Figure 16 This is a schematic diagram of the three-stage planting platform of the invention.

[0053] In the diagram, the correspondence between component names and their corresponding reference numerals is as follows:

[0054] 101. Floating platform; 102. Baffle plate; 103. Collection frame; 104. Interception filter screen; 105. One-way valve plate; 106. Guide plate; 107. Collection channel; 108. Guide channel; 109. Interception grid; 111. Cover plate; 112. Guide block; 113. One-way guide sleeve; 201. Regulating bladder; 2011. Aeration contact section; 20111. Pressurization hole; 2012. Pressure regulating section; 20121. Inlet pipe; 20122. Regulating channel; 20123. First Guide groove; 20124, second guide groove; 2013, air hole guide section; 20131, first air inlet pipe; 20132, exhaust pipe; 202, first air guide pipe; 203, air accumulator; 2031, balance chamber; 2032, pressurization chamber; 2033, second air inlet pipe; 204, one-way valve; 205, duckbill valve; 206, second air guide pipe; 207, one-way throttle valve; 208, pressure exhaust valve; 209, extrusion plate; 2091, drain pipe; 211, pressure spring; 212. Return spring; 213. Pressure-triggered check valve; 214. Piston rod; 215. Piston spring; 216. Isolation ring; 2161. Connecting lug; 217. Shaft seat; 218. Pressure block; 2181. Magnetic block; 219. Rotating column; 221. Magnetic sheet; 222. Connecting wire; 223. Magnetic ring; 224. Baffle; 225. Balance spring; 226. Damping ring; 301. Rotating base; 302. Guide vane; 303. Baffle; 304. Guide channel; 305. 401. Aeration holes; 401. Floating plant planting platform; 4011. Annular positioning groove; 4012. Grid planting frame; 4013. Counterweight block; 402. Floating leaf plant planting platform; 4021. Adjustment plate; 4023. Telescopic support column; 403. Emergent plant planting platform; 4031. Composite purification substrate; 4032. Protective cover plate; 4033. Elastic fixing ring; 501. Protective cover; 502. Ventilation holes; 503. Diversion grid; 504. Spiral guide plate; 505. Connecting pipe. Detailed Implementation

[0055] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but should not be used to limit the scope of protection of the present invention.

[0056] Example: Figures 1 to 4 As shown, an aquatic plant water purification device with integrated aeration function includes a floating platform 101. The floating platform 101 is provided with multiple sets of partitions 102, which divide the floating platform 101 into a planting area for cultivating aquatic purification plants and a collection area. The collection area is provided with multiple sets of adjustment components and a collection frame 103. The adjustment components include adjustment bladders 201 and air storage bladders 203. The adjustment bladders 201 are inserted through the floating platform 101 and their bottoms are immersed in the water. The collection frame 103 is installed on the multiple sets of adjustment bladders 201.

[0057] Specifically, the floating platform 101 is made of high-density polyethylene and has an overall hexagonal plate structure; the partition 102 has a multi-arc ring structure to separate the planting area from the collection area, and the planting area accounts for 60% to 70% of the total area of ​​the floating platform 101; the collection frame 103 is a hollow cylinder with an open top and multiple through holes. The edge of the frame is bolted to the top of the pressure regulating section 2012 of the regulating bladder 201, and its position can be adaptively adjusted according to the height change of the regulating bladder 201, thereby collecting floating impurities on the water surface.

[0058] The regulating bladder 201 has a three-section structure, from bottom to top as follows:

[0059] The aeration contact section 2011 is used for water aeration and drainage. An aeration element is provided below the aeration contact section 2011. A pressurization hole 20111 is opened on the side wall of the aeration contact section 2011. The pressurization hole 20111 is connected to the air inlet of the air storage bag 203 through the first air guide pipe 202. A one-way valve 204 is provided on the first air guide pipe 202.

[0060] The pressure regulating section 2012 is used for water introduction and pressure balance. The pressure regulating section 2012 is equipped with multiple sets of water inlet pipes 20121, and each water inlet pipe 20121 is equipped with a duckbill valve 205.

[0061] The air inlet guide section 2013 is used for gas on / off control and linkage adjustment. The top of the air inlet guide section 2013 is provided with a first air inlet pipe 20131 and an exhaust pipe 20132. The first air inlet pipe 20131 is connected to the air accumulator 203 through a second air guide pipe 206. A one-way throttle valve 207 is provided on the second air guide pipe 206, and a pressure exhaust valve 208 is provided on the exhaust pipe 20132.

[0062] Specifically, the three-section structure of the regulating bladder 201 is an assembled structure, connected by threads and sealing rings (not shown in the figure). The aeration contact section 2011, the pressure regulating section 2012, and the air hole guide section 2013 are all cylindrical. The bottom of the aeration contact section 2011 is connected to the aeration element through a rotary joint to ensure that the aeration element can rotate freely. The water inlet pipes 20121 are evenly distributed along its circumference, with at least four sets. The water outlet direction of the duckbill valve 205 faces the inside of the regulating bladder 201, allowing only unidirectional water inflow. The air hole guide section 2013 is cylindrical with the smallest inner diameter. The exhaust pipe 20132 at its top is set on the first air inlet pipe 20131, and the diameter of the first air inlet pipe 20131 is larger than that of the exhaust pipe 20132.

[0063] Understandably, this device introduces external water into the regulating bladder 201 through the inlet pipe 20121 of the pressure regulating section 2012 (at this time, the duckbill valve 205 ensures that the water can only flow inward). As the water is continuously injected, the water level in the pressure regulating section 2012 rises, which gradually increases the internal pressure.

[0064] The water pressure in the pressure regulating section 2012 is transmitted to the aeration contact section 2011, which forces the gas in the aeration contact section 2011 to be forced into the gas storage bladder 203 through the first air guide pipe 202 (controlled by the one-way valve 204). The gas pressure in the gas storage bladder 203 gradually increases as the gas is injected.

[0065] When the air pressure inside the air sump 203 reaches the set threshold, the gas enters the air hole guide section 2013 through the second air guide pipe 206 (at this time, the flow rate is regulated by the one-way throttle valve 207 to ensure constant pressure), driving the internal mechanism to move; at the same time, the pressure triggers the one-way valve 213 of the drain pipe 2091 in the aeration contact section 2011 to open, and the water carrying some gas is discharged through the aeration element—the rotating base 301 of the aeration element rotates under the impact of the water flow, and the water and gas are mixed through the spiral blades and aeration holes 305 and then evenly diffused into the water body to achieve aeration;

[0066] During aeration, the pressure inside the regulating bladder 201 drops. When the pressure is lower than the threshold of the exhaust valve, the exhaust pipe 20132 opens to release the residual gas. The pressure inside the air storage bladder 203 and the regulating bladder 201 returns to the initial state, and the duckbill valve 205 opens to allow water to enter again, starting the next cycle.

[0067] The aquatic plants in the planting area adsorb and degrade pollutants in the water through their roots. The water flow disturbance generated by the rotating aeration enhances the contact efficiency between pollutants and roots. The collection frame 103 continuously intercepts floating impurities on the water surface as the height of the regulating bag 201 changes, achieving a synergistic effect of "plant purification + aeration oxygenation + floating object collection".

[0068] like Figure 5 As shown, an aeration contact section 2011 is provided with a squeezing plate 209. A pressure spring 211 and a return spring 212 are respectively provided on both sides of the squeezing plate 209. One end of the pressure spring 211 is connected to the top of the aeration contact section 2011, and the other end is connected to the top of the squeezing plate 209. One end of the return spring 212 is connected to the bottom of the aeration contact section 2011, and the other end is connected to the bottom of the squeezing plate 209. A drain pipe 2091 is provided on the squeezing plate 209. One end of the drain pipe 2091 passes through the aeration contact section 2011 and extends into the water body. The aeration element is installed at the end of the drain pipe 2091 away from the squeezing plate 209. A pressure-triggered one-way valve 213 is provided inside the drain pipe 2091.

[0069] Specifically, the squeezing plate 209 is a circular metal plate, preferably made of 304 stainless steel. Its diameter is matched with the inner diameter of the aeration contact section 2011 (gap ≤ 0.5mm), ensuring that the squeezing plate 209 can slide up and down along the inner wall of the aeration contact section 2011 without lateral displacement. The pressure spring 211 and the return spring 212 are both cylindrical helical springs with a stiffness coefficient ratio of 1.2:1. The initial compression of the pressure spring 211 is slightly greater than that of the return spring 212, so that the squeezing plate 209 remains balanced in the initial state and avoids accidental triggering of the action due to water fluctuations.

[0070] The drain pipe 2091 vertically penetrates the center of the extrusion plate 209 and is welded and fixed to the extrusion plate 209. The diameter of the drain pipe 2091 is 1 / 5 of the inner diameter of the aeration contact section 2011. The outer wall of the end extending into the water body is provided with external threads, which are detachably connected to the rotating base 301 of the aeration element by threads, facilitating later replacement and maintenance. The pressure-triggered one-way valve 213 is installed at the end of the drain pipe 2091 near the extrusion plate 209. Its opening pressure is set to 0.2-0.3MPa. When the pressure in the aeration contact section 2011 rises to this threshold due to water injection, the pressure-triggered one-way valve 213 automatically opens, allowing the water and gas mixture to flow to the aeration element. When the pressure drops below 0.1MPa, the pressure-triggered one-way valve 213 automatically closes to prevent external water from flowing back into the regulating bladder 201.

[0071] In addition, a rubber sealing ring (not shown in the figure) is fitted around the edge of the extrusion plate 209. The sealing ring fits against the inner wall of the aeration contact section 2011, which can enhance the sealing performance of the extrusion plate 209, prevent gas from leaking from the edge of the plate, and reduce frictional wear between the plate and the inner wall when the plate slides, thus extending the service life of the device.

[0072] like Figures 5 to 7 As shown, the aeration component includes a rotating base 301, one end of which is rotatably connected to a drain pipe 2091. The bottom of the rotating base 301 is provided with multiple sets of guide vanes 302, which are arc-shaped. The outer wall of the rotating base 301 is provided with multiple sets of baffles 303, and a guide channel 304 is formed between adjacent baffles 303. Multiple aeration holes 305 are opened on the guide channel 304.

[0073] Specifically, the rotating base 301 is a hollow frustum-shaped structure with a circular mounting hole at the center of its top. A deep groove bearing (not shown in the figure) is fitted inside the hole. The inner ring of the bearing is interference-fitted with the outer wall of the drain pipe 2091, and the outer ring is fixedly connected to the inner wall of the mounting hole of the rotating base 301, so as to realize the relative rotation of the rotating base 301 and the drain pipe 2091. A circular end cap is screwed onto the external thread end of the bottom of the drain pipe 2091. The diameter of the end cap is larger than the diameter of the outer ring of the bearing, forming an axial limiting structure, which prevents the rotating base 301 from falling off the drain pipe 2091 without affecting its rotational flexibility. Sealing rings are provided at the connection between the drain pipe 2091, the rotating base 301, and the aeration contact section 2011.

[0074] The rotating base 301 is a split structure, including an outer shell and a base plate. The outer shell and the base plate are connected by bolts. The guide vanes 302 are integrally formed with the base plate. The guide vanes 302 are evenly distributed along the inner bottom circumference of the rotating base 301. The curvature of the arc structure is consistent with the direction of water flow, which can drive the rotating base 301 to rotate under the impact of water flow.

[0075] The baffle plate 303 is an inclined plate structure, forming an angle of 30°-45° with the outer wall of the rotating base 301, and there are 8-12 sets to meet the water flow diffusion requirements; the aeration holes 305 are round holes and are distributed along the length of the guide channel 304, so that the gas-liquid mixture flowing through it is ejected from the aeration holes 305 under pressure to form fine bubbles and improve the aeration effect.

[0076] like Figure 5 , Figure 8 As shown, a piston rod 214 is provided in the air hole guide section 2013. One end of the piston rod 214 extends to the pressure regulating section 2012. A piston spring 215 is sleeved on the piston rod 214 and is locked in the air hole guide section 2013.

[0077] Specifically, a pressure plate is provided at one end of the piston rod 214 in the vent guide section 2013, and a circular pressure bearing plate is provided at the end near the pressure regulating section 2012. The inner diameter of the pressure plate is equal to that of the vent guide section 2013, and the inner diameter of the circular pressure bearing plate is equal to that of the pressure regulating section 2012. Both the pressure plate and the circular pressure bearing plate are solid disc structures, and are coaxially arranged and integrally formed with the piston rod 214. The edge of the pressure plate is fitted with a nitrile rubber sealing ring (not shown in the figure), which fits against the inner wall of the vent guide section 2013 to ensure that the gas pressure in the vent guide section 2013 can be fully applied to the pressure plate. The edge of the circular pressure bearing plate is provided with a polytetrafluoroethylene wear-resistant ring (not shown in the figure) to reduce the frictional resistance when sliding with the inner wall of the pressure regulating section 2012.

[0078] The piston spring 215 is sleeved on the shaft section of the piston rod 214 located between the pressure plate and the bottom inner wall of the air hole guide section 2013. One end of the spring abuts against the top surface of the pressure plate, and the other end is engaged with the inner wall of the air hole guide section 2013. Its free length is adapted to the initial distance of the shaft section in the air hole guide section 2013, so that in the initial state, the circular pressure plate of the piston rod 214 is suspended in the pressure regulating section 2012 and does not contact other components, thus maintaining the initial balance of the device.

[0079] When the air pressure inside the air guide section 2013 increases (supplied by the air accumulator 203 through the second air pipe 206), the pressure plate is compressed by the gas thrust, causing the piston rod 214 to move smoothly towards the pressure regulating section 2012. Simultaneously, the circular pressure plate squeezes the water inside the pressure regulating section 2012, further enhancing the pressure linkage effect between the pressure regulating section 2012 and the aeration contact section 2011, providing pressure support for the drainage and aeration actions of the aeration contact section 2011. When the air pressure inside the air guide section 2013 continues to rise to the level of the exhaust pipe 2... When the pressure exhaust valve 208 is set to the threshold value (0.3MPa), it automatically opens to release excess gas and prevent damage to components due to excessive pressure. Once the pressure drops below the threshold value, the pressure exhaust valve 208 closes. If the air accumulator 203 stops supplying air, the air pressure in the air guide section 2013 gradually decreases. The piston spring 215 releases its elastic potential energy, pushing the pressure plate and piston rod 214 back to the initial position, restoring the pressure in the pressure regulating section 2012 to its initial state, thus preparing for the next pressure accumulation and aeration cycle.

[0080] like Figure 5 , Figures 9 to 12 As shown, the pressure regulating section 2012 has an regulating groove 20122, and the regulating groove 20122 has a partition ring 216 for closing the water inlet pipe 20121. The top of the regulating groove 20122 has a bearing seat 217, and the side wall of the regulating groove 20122 has multiple sets of first guide grooves 20123. A pressure block 218 is slidably mounted on the first guide groove 20123. A rotating column 219 is rotatably mounted at the bottom of the first guide groove 20123, and two sets of magnetic plates 221 are symmetrically mounted on the rotating column 219. The pressure block 218 A magnetic block 2181 is provided at the bottom, and multiple sets of connecting ears 2161 are provided at the top of the partition ring 216. The connecting ears 2161 are connected to the pressure block 218 by a connecting line 222, and the connecting line 222 is wound around the shaft seat 217. A magnetic ring 223 is provided at one end of the piston rod 214 located in the pressure regulating section 2012, and a second guide groove 20124 is provided on the inner side wall of the pressure regulating section 2012. The magnetic ring 223 is slidably disposed in the second guide groove 20124, and the magnetic ring 223 is magnetically connected to the pressure block 218.

[0081] Specifically, the regulating groove 20122 is an annular groove opened on the inner wall of the pressure regulating section 2012. The width of the groove is adapted to the thickness of the isolation ring 216, ensuring that the isolation ring 216 can slide up and down in the groove. The isolation ring 216 is a circular ring structure, and its outer diameter is consistent with the inner diameter of the pressure regulating section 2012. The edge of the ring is provided with a rubber sealing layer. When the isolation ring 216 moves up to the limit position, it can completely block the water inlet hole of the water inlet pipe 20121, thereby achieving water cutoff.

[0082] The bearing seat 217 is fixed to the top of the adjusting groove 20122 and has an annular groove for winding the connecting wire 222. The first guide groove 20123 is a rectangular groove evenly distributed around the circumference of the adjusting groove 20122, and the number is the same as that of the pressure block 218. The groove is coated with grease. The pressure block 218 has limiting blocks on both sides. The first guide groove 20123 has limiting grooves at both ends. The limiting blocks slide in the limiting grooves, and their tops slide in the first guide groove 20123. The magnetic block 2181 at the bottom is a neodymium iron boron strong magnet.

[0083] The rotating column 219 is a metal cylinder, which is rotatably mounted at the bottom of the first guide groove 20123 via a bearing. Two sets of magnetic sheets 221 are respectively embedded on both sides of the rotating column 219, and are symmetrically distributed at 180°. One set of magnetic sheets 221 forms an opposite polarity adsorption relationship with the magnetic block 2181 at the bottom of the pressure block 218, while the other set forms a like polarity repulsion relationship. The shaft end of the rotating column 219 is provided with a limiting structure, so that the rotating column 219 can only rotate 180 degrees forward or 180 degrees backward. This is shown in the figure and is the prior art.

[0084] The second guide groove 20124 is axially opened along the inner wall of the pressure regulating section 2012, and its length is 2-3 times that of the first guide groove 20123. The magnetic ring 223 on the piston rod 214 is a ring-shaped strong magnet with fixed polarity, which is sleeved on one end of the piston rod 214 extending to the pressure regulating section 2012 and slides in cooperation with the second guide groove 20124. When the piston rod 214 moves down, the magnetic ring 223 drives the pressure block 218 (the pressure block 218 is a metal block that can be attracted by a magnet, and the magnetic block 2181 of the pressure block 218 has a shielding magnetic coating in the mounting groove) to slide along the second guide groove 20124 to the position of the rotating column 219. When the magnetic force of the magnetic ring 223 acts on the magnetic sheet 221 on the rotating column 219, it pushes the rotating column 219 to rotate 180°, so that the opposite polarity magnetic sheet 221 turns towards the bottom magnetic block 2181 of the pressure block 218. The magnetic sheet 221 generates an attraction force to attract the pressure block 218, and through the connection Line 222 pulls the isolation ring 216 upward to block the water inlet hole of the water inlet pipe 20121; when the piston rod 214 moves upward, the magnetic ring 223 slides away from the rotating column 219 along the second guide groove 20124. The rotating column 219 rotates 180° in the opposite direction under its own weight and the reaction force of the pressure block 218. The same pole magnetic sheet 221 turns to the bottom magnetic block 2181 of the pressure block 218, generating a repulsive force to push the pressure block 218 upward to reset. The isolation ring 216 moves downward under the action of water pressure and its own weight, and the water inlet hole of the water inlet pipe 20121 is opened.

[0085] like Figure 5 , Figure 13 As shown, the air sac 203 is provided with a baffle 224, which divides the air sac 203 into a balance chamber 2031 and a pressurization chamber 2032 from bottom to top. The bottom of the air sac 203 is provided with a second air inlet pipe 2033, which passes through the baffle 224 and extends into the pressurization chamber 2032. The bottom of the baffle 224 is provided with a balance spring 225, which is located in the balance chamber 2031. A damping ring 226 is fitted on the baffle 224.

[0086] Specifically, the air accumulator 203 is a rigid sealed cavity made of high-density polyethylene composite material and is cylindrical in shape. The diameter of the baffle 224 is adapted to the inner diameter of the air accumulator 203, ensuring that the baffle 224 can slide up and down along the inner wall of the air accumulator 203. The baffle 224 is a circular metal disc made of 304 stainless steel, with an annular groove on the edge of the disc. The damping ring 226 is made of nitrile rubber and is embedded in the annular groove and fits against the inner wall of the air accumulator 203. This ensures gas-liquid isolation between the balance chamber 2031 and the pressurization chamber 2032, and also slows down the sliding speed of the baffle 224 through damping to avoid sudden pressure changes.

[0087] The second air inlet pipe 2033 is a metal pipe. One end passes through the bottom of the air accumulator 203 and is connected to the first air guide pipe 202. The other end is vertically upward and passes through the center of the baffle 224. A sealing ring is provided at the mating point (not shown in the figure), and the pipe opening extends into the inside of the pressurization chamber 2032, so that the gas discharged from the aeration contact section 2011 can directly enter the pressurization chamber 2032 through the second air inlet pipe 2033. The balance spring 225 is a cylindrical helical spring. One end is welded to the bottom of the air accumulator 203 (bottom surface of the balance chamber 2031), and the other end abuts against the center of the bottom of the baffle 224. The spring stiffness coefficient is adapted to the design pressure of the pressurization chamber 2032. In the initial state, it keeps the baffle 224 in the lower part of the air accumulator 203.

[0088] When the aeration contact section 2011 supplies air to the storage bladder 203 through the first air guide pipe 202, the gas enters the pressurization chamber 2032 through the second air inlet pipe 2033, pushing the baffle 224 to move upward against the elastic force of the balance spring 225. The volume of the pressurization chamber 2032 gradually increases as the baffle 224 moves upward, realizing gas storage. When the air pressure in the pressurization chamber 2032 reaches the set value (supplying air to the air guide section 2013 through the second air guide pipe 206), the baffle 224 maintains dynamic balance under the action of air pressure and spring force. When the gas in the pressurization chamber 2032 is discharged and the air pressure drops, the balance spring 225 pushes the baffle 224 to move downward and reset, compressing the air in the balance chamber 2031 to form a reverse buffer. Through the reciprocating sliding of the baffle 224 and the blocking effect of the damping ring 226, the pressure change in the storage bladder 203 is stable and controllable, providing a continuous and stable air source power for the aeration system.

[0089] like Figure 5 As shown, the cross-sectional area ratio of the aeration contact section 2011 to the pressure regulating section 2012 and the air hole guiding section 2013 is 10:4:1;

[0090] The length ratio of the aeration contact section 2011 to the pressure regulating section 2012 and the air hole guiding section 2013 is 1:3:5.

[0091] Specifically, the aeration contact section 2011, the pressure regulating section 2012, and the air hole guiding section 2013 are all cylindrical structures, and the pressure amplification function is achieved through the gradient ratio of cross-sectional area and length.

[0092] Taking the cross-sectional area of ​​the air vent guide section 2013 as a reference (denoted as S), the cross-sectional area of ​​the pressure regulating section 2012 is 4S, and the aeration contact section 2011 is 10S. If the inner diameter of the air vent guide section 2013 is set to 20mm (cross-sectional area approximately 314mm²), then the inner diameter of the pressure regulating section 2012 is approximately 40mm (cross-sectional area approximately 1256mm²), and the inner diameter of the aeration contact section 2011 is approximately 63mm (cross-sectional area approximately 3116mm²). This area gradient amplifies the gas pressure during transmission. When the gas thrust (purification device = P1 × S) in the air guide section 2013 is transmitted to the pressure regulating section 2012 through the piston rod 214, the water pressure in the pressure regulating section 2012 can be amplified to the inverse effect of P2≈P1×(S / 4S)=P1 / 4 (according to Pascal's law, the transmission of force amplifies the pressure at the small area end). When the pressure is transmitted to the aeration contact section 2011 through the pressure regulating section 2012, the pressure is further amplified, and finally a pressure value sufficient to drive the aeration element to work is formed in the aeration contact section 2011, realizing the amplification effect of "small air pressure input - large water pressure output".

[0093] Taking the length of the aeration contact section 2011 as a baseline (denoted as L), the length of the pressure regulating section 2012 is 3L, and the length of the air hole guiding section 2013 is 5L. If the length of the aeration contact section 2011 is set to 80mm, the pressure regulating section 2012 is 240mm, and the air hole guiding section 2013 is 400mm. The longer pressure regulating section 2012 provides a buffer space for the accumulation and stabilization of water pressure, and the area gradient enhances the pressure amplification effect; the extra-long air hole guiding section 2013 provides sufficient sliding stroke for the piston rod 214, ensuring the lever arm matching during the pressure transmission process, making the pressure amplification effect more stable and controllable. Finally, through the dimensional coordination of the three-section structure, the pressure is amplified and transmitted from the gas end to the liquid end, improving the aeration efficiency.

[0094] like Figure 1 , Figure 2 , Figure 14 Multiple sets of guide plates 106 are provided at the edge of the planting area. The guide plates 106 divide the planting area into multiple sets of three-level planting platforms. A collection channel 107 is formed between two adjacent sets of guide plates 106. One end of the collection channel 107 extends to the collection frame 103. An interception filter 104 is provided in the collection frame 103. A one-way valve plate 105 is provided at the end of the collection channel 107 away from the collection frame 103.

[0095] The top of the guide plate 106 is provided with a cover plate 111, and the bottom of the cover plate 111 is provided with multiple sets of guide blocks 112 and one-way guide sleeves 113. The one-way guide sleeves 113 extend into the collection frame 103, and the collection channel 107 is connected to the guide blocks 112, the one-way guide sleeves 113 and the collection frame 103 in sequence.

[0096] Specifically, the guide plate 106 is a thin steel plate (with anti-corrosion treatment on the surface), with a height of 15-20cm. It is evenly distributed around the edge of the planting area, and the included angle between adjacent guide plates 106 is 10°-15°. It is fixed to the surface of the floating platform 101 by welding or bolts, dividing the planting area into 6 independent three-level planting platforms to form a radially distributed purification unit.

[0097] The collection channel 107 is a V-shaped trough formed between the guide plates 106. The width of the trough gradually narrows from the edge of the planting area to the collection frame 103, which facilitates the water carrying impurities to converge into the collection frame 103. The one-way valve plate 105 is a rubber purification device lap valve, which is installed on the end of the collection channel 107 away from the collection frame 103 by a hinge. It only allows external water to flow into the channel in one direction to prevent water backflow.

[0098] The cover plate 111 is a transparent acrylic plate that covers the top of the guide plate 106 to form a closed channel structure. The guide block 112 at its bottom is raised to guide the water flow. The one-way guide sleeve 113 is a duckbill-type one-way sleeve made of PVC. The large-diameter end is connected to the end of the guide block 112, and the small-diameter end extends into the collection frame 103. The cover plate 111 and the guide plate 106 are detachably connected.

[0099] The intercepting filter 104 inside the collection frame 103 is made of stainless steel mesh and can be detachably installed in the middle of the frame via clips. Through the cooperation of the guide plate 106, the cover plate 111 and the one-way guide sleeve 113, the directional flow of water and the collection of impurities are realized.

[0100] like Figure 15 As shown, the three-level planting platforms, from the edge to the center, are respectively a floating plant planting platform 401, a floating leaf plant planting platform 402, and an emergent plant planting platform 403.

[0101] The three planting platforms are connected by a guide channel 108, and the water inlet end of the guide channel 108 is equipped with an interception grid 109.

[0102] The floating plant planting platform 401 has an annular positioning groove 4011 on its edge, a grid planting frame 4012 inside the annular positioning groove 4011, and a counterweight block 4013 at the bottom of the grid planting frame 4012.

[0103] An adjustment plate 4021 is provided above the floating-leaved plant planting platform 402. The adjustment plate 4021 is connected to the floating-leaved plant planting platform 402 via a telescopic support column 4023. The adjustment plate 4021 has honeycomb-shaped planting holes.

[0104] The bottom of the emergent plant planting platform 403 is covered with a composite purification substrate 4031, the top of the composite purification substrate 4031 is provided with a protective cover plate 4032, and the top of the protective cover plate 4032 is provided with multiple sets of elastic fixing rings 4033.

[0105] Specifically, the three-tiered planting platforms are arranged radially from the edge to the center along the floating platform 101 in a stepped manner, with a height difference of 5-8 cm between adjacent planting platforms, forming a water level gradient from shallow to deep to accommodate the growth needs of different aquatic plants.

[0106] Floating plant planting platform 401: Located on the outermost side (near the edge of floating platform 101), the annular positioning groove 4011 on the edge is wide and used to limit the grid planting frame 4012; the grid planting frame 4012 is a square frame made of PP material, with two detachable counterweights 4013 at the bottom. The floating depth of the planting frame can be controlled by adjusting the number of counterweights 4013, which is suitable for the cultivation of floating plants such as water hyacinth and duckweed.

[0107] Floating-leaved plant planting platform 402: Located in the middle layer, the platform area is 1.2 times that of the floating plant planting platform 401. The upper adjustment plate 4021 is a perforated board made of HDPE material; the telescopic support column 4023 is a metal threaded column, evenly distributed at the bottom of the adjustment plate 4021. By rotating the column, the height of the adjustment plate 4021 can be adjusted within a range of 10-20cm, thereby controlling the water depth of the floating-leaved plant roots; used to fix the roots and stems of floating-leaved plants such as water lilies and water chestnuts to prevent the plants from shifting.

[0108] Emergent plant planting platform 403: Located on the innermost side (near the center of floating platform 101), the bottom of the platform is covered with a 15-20cm thick composite purification substrate 4031. This substrate is made of 3-5mm ceramsite, 2-4mm volcanic rock and 1-2mm biochar in a volume ratio of 4:3:3, which has both pollutant adsorption and aeration functions. The protective cover plate 4032 on top of the substrate is a perforated stainless steel plate to prevent the substrate from being washed away by water flow. The elastic fixing ring 4033 on the top of the protective cover plate 4032 is made of rubber and is used to fix the stems of emergent plants such as reeds and cattails to prevent them from falling over.

[0109] The guide channel 108 between the three planting platforms is a rectangular channel, and the interception grid 109 at the water inlet end is a stainless steel mesh that can be detached and installed through a slot. It can filter large particles of impurities in the water and prevent blockage of the guide channel 108. After the water flows through the grid for filtration, it flows through the floating plant planting platform 401, the floating leaf plant planting platform 402, and the emergent plant planting platform 403 in sequence. Through the synergistic adsorption and degradation of pollutants by the root systems of different plants, a step-by-step purification is achieved.

[0110] like Figure 15 , Figure 16 As shown, the bottom of the floating platform 101 is provided with a protective cover 501, which covers the water area directly below the planting area. Multiple sets of ventilation holes 502 are opened on the protective cover 501. A diversion grid 503 is provided at one end of the ventilation hole 502, and a spiral guide plate 504 is provided inside the ventilation hole 502.

[0111] The bottom of the emergent plant planting platform 403 is equipped with a connecting pipe 505, which passes through the protective cover 501, and one end of the connecting pipe 505 is connected to the guide channel 108.

[0112] Specifically, the protective cover 501 is a plate that is installed in the water area directly below the planting area. Its top edge is fixed to the bottom of the floating platform 101 with bolts, which not only prevents aquatic animals from eating the plant roots, but also prevents external debris from getting tangled in the roots and affecting the purification effect.

[0113] The vent 502 is a circular through hole evenly opened on the wall of the protective cover 501. The water inlet end of the hole is welded with a diversion grid 503 - the grid is a cross-shaped metal plate that can disperse the water flow into multiple fine streams to avoid the water flow in one direction from impacting the root system. The vent 502 has a spiral guide plate 504 integrally formed inside. When the water flows through, it will form a spiral flow along the guide plate to help increase the dissolved oxygen content.

[0114] The connecting pipe 505 is made of PVC. One end passes vertically downward through the protective cover 501 (the connection is sealed with a sealing ring to prevent water leakage) and extends 10-12cm into the protective cover 501. The other end is connected to the bottom of the guide channel 108 on the edge of the emergent plant planting platform 403. The end of the connecting pipe 505 near the guide channel 108 is equipped with a one-way check valve (not shown in the figure), which only allows the water in the guide channel 108 to flow into the protective cover 501 in one direction, so that the roots of the emergent plant planting platform 403 can further absorb and degrade the water, forming a directional water flow path of "guide channel 108 - connecting pipe 505 - protective cover 501", ensuring that the purification functions of the three-stage planting platform are connected in an orderly manner and improving the overall purification efficiency.

[0115] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An aquatic plant water purification device with integrated aeration function, comprising a floating platform (101), characterized in that: The floating platform (101) is provided with multiple sets of partitions (102), which divide the floating platform (101) into a planting area and a collection area for cultivating aquatic purification plants. The collection area is provided with multiple sets of adjustment components and collection frames (103). The adjustment components include adjustment bladders (201) and air storage bladders (203). The adjustment bladders (201) are inserted through the floating platform (101) and their bottoms are immersed in the water. The collection frames (103) are installed on multiple sets of adjustment bladders (201). The regulating bladder (201) has a three-section structure, from bottom to top: an aeration contact section (2011) for water aeration and drainage, an aeration element below the aeration contact section (2011), a pressurization hole (20111) on the side wall of the aeration contact section (2011), the pressurization hole (20111) being connected to the air inlet of the air storage bladder (203) through a first air guide pipe (202), and a one-way valve (204) on the first air guide pipe (202). The pressure regulating section (2012) is used for water introduction and pressure balance. The pressure regulating section (2012) is equipped with multiple sets of water inlet pipes (20121), and the water inlet pipes (20121) are equipped with duckbill valves (205). The air inlet guide section (2013) is used for gas on / off control and linkage adjustment. The top of the air inlet guide section (2013) is provided with a first air inlet pipe (20131) and an exhaust pipe (20132). The first air inlet pipe (20131) is connected to the air accumulator (203) through a second air guide pipe (206). The second air guide pipe (206) is provided with a one-way throttle valve (207), and the exhaust pipe (20132) is provided with a pressure exhaust valve (208).

2. The aquatic plant water purification device with integrated aeration function according to claim 1, characterized in that: The aeration contact section (2011) is provided with a squeezing plate (209). A pressure spring (211) and a return spring (212) are respectively provided on both sides of the squeezing plate (209). One end of the pressure spring (211) is connected to the top of the aeration contact section (2011) and the other end is connected to the top of the squeezing plate (209). One end of the return spring (212) is connected to the bottom of the aeration contact section (2011) and the other end is connected to the bottom of the squeezing plate (209). The extrusion plate (209) is provided with a drain pipe (2091), one end of the drain pipe (2091) is inserted through the aeration contact section (2011) and extends into the water body, and the aeration element is installed at the end of the drain pipe (2091) away from the extrusion plate (209). The drain pipe (2091) is equipped with a pressure-triggered check valve (213).

3. The aquatic plant water purification device with integrated aeration function according to claim 2, characterized in that: The aeration element includes a rotating base (301), one end of which is rotatably connected to the drain pipe (2091). The bottom of the rotating base (301) is provided with multiple sets of guide vanes (302), and the guide vanes (302) are arc-shaped. The outer wall of the rotating base (301) is provided with multiple sets of baffles (303), and a flow guiding channel (304) is formed between adjacent baffles (303). Multiple sets of aeration holes (305) are opened on the flow guiding channel (304).

4. The aquatic plant water purification device with integrated aeration function according to claim 3, characterized in that: A piston rod (214) is provided inside the air hole guide section (2013). One end of the piston rod (214) extends to the pressure regulating section (2012). A piston spring (215) is sleeved on the piston rod (214). The piston spring (215) is locked inside the air hole guide section (2013).

5. The aquatic plant water purification device with integrated aeration function according to claim 4, characterized in that: The pressure regulating section (2012) is provided with an regulating groove (20122), and the regulating groove (20122) is provided with a partition ring (216) for closing the water inlet pipe (20121). The top of the regulating groove (20122) is provided with a bearing seat (217), and the side wall of the regulating groove (20122) is provided with multiple sets of first guide grooves (20123). Pressure blocks (218) are slidably provided on the first guide grooves (20123). The bottom of the first guide groove (20123) is provided with a rotating column (219), and two sets of magnetic sheets (221) are symmetrically provided on the rotating column (219). The bottom of the pressure block (218) is provided with a magnetic block (2181), and the top of the partition ring (216) is provided with multiple sets of connecting ears (2161). The connecting ears (2161) and the pressure block (218) are connected by a connecting line (222), and the connecting line (222) is wound around the shaft seat (217). The piston rod (214) is provided with a magnetic ring (223) at one end of the pressure regulating section (2012), and a second guide groove (20124) is provided on the inner side wall of the pressure regulating section (2012). The magnetic ring (223) is slidably disposed in the second guide groove (20124), and the magnetic ring (223) is magnetically connected to the pressure block (218).

6. The aquatic plant water purification device with integrated aeration function according to claim 1, characterized in that: The air sac (203) is provided with a baffle (224), which divides the air sac (203) from bottom to top into a balance chamber (2031) and a pressurization chamber (2032). The bottom of the air sac (203) is provided with a second air inlet pipe (2033), which passes through the baffle (224) and extends into the pressurization chamber (2032). The bottom of the baffle (224) is provided with a balance spring (225), which is located in the balance chamber (2031). A damping ring (226) is fitted on the baffle (224).

7. The aquatic plant water purification device with integrated aeration function according to claim 1, characterized in that: The cross-sectional area ratio of the aeration contact section (2011) to the pressure regulating section (2012) and the air hole guiding section (2013) is 10:4:1; The length ratio of the aeration contact section (2011) to the pressure regulating section (2012) and the air hole guiding section (2013) is 1:3:

5.

8. The aquatic plant water purification device with integrated aeration function according to claim 1, characterized in that: Multiple sets of guide plates (106) are provided at the edge of the planting area. The guide plates (106) divide the planting area into multiple sets of three-level planting platforms. A collection channel (107) is formed between two adjacent sets of guide plates (106). One end of the collection channel (107) extends to the collection frame (103). An interception filter (104) is provided in the collection frame (103). A one-way valve plate (105) is provided at the end of the collection channel (107) away from the collection frame (103). The top of the guide plate (106) is provided with a cover plate (111), and the bottom of the cover plate (111) is provided with multiple sets of guide blocks (112) and one-way guide sleeves (113). The one-way guide sleeves (113) extend into the collection frame (103), and the collection channel (107) is connected to the guide blocks (112), the one-way guide sleeves (113) and the collection frame (103) in sequence.

9. The aquatic plant water purification device with integrated aeration function according to claim 8, characterized in that: The three-level planting platforms, from the edge to the center, are respectively a floating plant planting platform (401), a floating leaf plant planting platform (402), and an emergent plant planting platform (403). The three planting platforms are connected by a guide channel (108), and the water inlet end of the guide channel (108) is provided with an interception grid (109). The floating plant planting platform (401) has an annular positioning groove (4011) on its edge, a grid planting frame (4012) is provided in the annular positioning groove (4011), and a counterweight block (4013) is provided at the bottom of the grid planting frame (4012). An adjustment plate (4021) is provided above the floating-leaf plant planting platform (402). The adjustment plate (4021) is connected to the floating-leaf plant planting platform (402) through a telescopic support column (4023). The adjustment plate (4021) has honeycomb-shaped planting holes. The bottom of the emergent plant planting platform (403) is covered with a composite purification substrate (4031), and the top of the composite purification substrate (4031) is provided with a protective cover plate (4032). The top of the protective cover plate (4032) is provided with multiple sets of elastic fixing rings (4033).

10. The aquatic plant water purification device with integrated aeration function according to claim 9, characterized in that: The bottom of the floating platform (101) is provided with a protective cover (501), which covers the water area directly below the planting area. The protective cover (501) has multiple sets of ventilation holes (502), one end of the ventilation hole (502) is provided with a diversion grid (503), and a spiral guide plate (504) is provided inside the ventilation hole (502). The bottom of the emergent plant planting platform (403) is provided with a connecting pipe (505), which passes through the protective cover (501) and one end of the connecting pipe (505) is connected to the guide channel (108).

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