Anti-blocking device and method for constructed wetland sewage treatment

Abstract

The application discloses an anti-blocking device and method for artificial wetland sewage treatment, and relates to the technical field of anti-blocking device structures for artificial wetland sewage treatment. The device comprises a main unit, which comprises a wetland lawn body and a soil material anti-seepage layer arranged on the lower surface of the wetland lawn body. The first T-shaped blocking block is used to drive the poking rod through the transmission shaft, so that the poking rod pokes the transmission lever, and the transmission lever can rotate around the connecting rod. Meanwhile, the second spring is used to make the H-shaped block vibrate and move when the transmission lever is forced to rotate, and the traction rope is used to pull the discharge filter plate, so that the discharge filter plate can move in the T-shaped sliding groove. The discharge filter plate is used to scrape the accumulated sundries in the flow measuring groove as a whole, so that the internal flow path is prevented from being blocked to a certain extent. The main flow groove is used to flush the sundries, so that the anti-blocking effect is improved to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of anti-clogging device structure technology for constructed wetland wastewater treatment, and particularly to an anti-clogging device and method for constructed wetland wastewater treatment. Background Technology

[0002] Constructed wetlands, as an eco-friendly wastewater treatment technology, purify wastewater through the combined action of substrates, plants, and microorganisms. Their treatment efficiency and ecosystem service functions are significantly better than those of traditional wastewater treatment plants, such as ammonia nitrogen removal rate of 59.8% and total phosphorus removal rate of 62.1%, and they also have ecological value such as carbon sequestration and climate regulation.

[0003] Excessive root growth of wetland plants, deposition of suspended solids, and excessive proliferation of microbial films can easily clog the pores of filler and the water distribution system, leading to hydraulic short circuits and reduced treatment efficiency. Existing cleaning methods mostly rely on manual periodic overhauls or high-pressure flushing, which are labor-intensive, costly, and require the system to be shut down during maintenance. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the current anti-clogging device and method for wastewater treatment in constructed wetlands, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an anti-clogging device and method for wastewater treatment in constructed wetlands. It is applicable to solving the problem that excessive growth of wetland plant roots, suspended solids deposition, and excessive proliferation of microbial films can easily clog the pores of packing materials and the water distribution system, leading to hydraulic short circuits and reduced treatment efficiency. Existing cleaning methods mostly rely on manual periodic overhauls or high-pressure flushing, which are labor-intensive, costly, and require the system to be shut down during maintenance.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an anti-clogging device for constructed wetland wastewater treatment, wherein the anti-clogging method for constructed wetland wastewater treatment uses an anti-clogging device for constructed wetland wastewater treatment, the anti-clogging device for constructed wetland wastewater treatment comprising: The main unit includes a wetland turf body and a soil impermeable layer disposed on the lower surface of the wetland turf body. A matrix layer is disposed on the lower surface of the soil impermeable layer, and a protective filter plate is fixedly connected to the lower surface of the matrix layer. The core drive unit includes a main flow channel and a side flow channel formed in the matrix layer. A protective filter frame is fixedly connected in the side flow channel. One side of the protective filter frame is fixedly connected to the lower surface of the protective filter plate. The number of protective filter frames is several, and the number of protective filter frames is adapted to the number of side flow channels. The anti-clogging cutting unit includes a T-shaped groove on one side of a protective filter frame and a lifting groove on the same side. A rubber buffer pad is fixedly connected to one side of the protective filter frame. An I-shaped block is slidably connected in the lifting groove. A first spring is fixedly connected to the inner surface of the T-shaped groove.

[0008] As a preferred embodiment of the anti-clogging device for artificial wetland wastewater treatment described in this invention, the soil impermeable layer is mainly used to prevent wastewater from seeping down and avoid polluting groundwater, while simultaneously using protective filter plates and protective filter frames to filter water to a certain extent during the infiltration process.

[0009] As a preferred embodiment of the anti-clogging device for artificial wetland wastewater treatment according to the present invention, wherein: a beam tube is fixedly connected to one side of the protective filter frame, a trapezoidal block is fixedly connected inside the beam tube, and a connecting ring is fixedly connected to one side of one set of the protective filter frames.

[0010] As a preferred embodiment of the anti-clogging device for artificial wetland wastewater treatment according to the present invention, the number of connecting rings is two sets, and the two sets of connecting rings are symmetrical about the center of the protective filter plate. A connecting shaft is rotatably connected inside the connecting ring, and a fan blade is fixedly connected to the outer surface of the connecting shaft.

[0011] As a preferred embodiment of the anti-clogging device for artificial wetland wastewater treatment according to the present invention, a drive gear is fixedly connected to the outer surface of the connecting shaft, a bearing block is fixedly connected to one side of the protective filter frame, a transmission shaft is rotatably connected inside the bearing block, and a dial is fixedly connected to the outer surface of the transmission shaft.

[0012] As a preferred embodiment of the anti-clogging device for artificial wetland wastewater treatment according to the present invention, wherein: a toggle rod is fixedly connected to one side of the toggle disc, the number of toggle discs is several, and the several toggle discs are evenly distributed on the outer surface of the transmission shaft, a transmission gear is fixedly connected to one end of the transmission shaft, and one side of the transmission gear is meshed with the side of the drive gear.

[0013] As a preferred embodiment of the anti-clogging device for artificial wetland wastewater treatment according to the present invention, wherein: a discharge filter plate is fixedly connected to one end of the first spring, a traction rope is fixedly connected to one side of the discharge filter plate, a second spring is fixedly connected to both sides of the I-shaped block, a first T-shaped obstruction block and a second T-shaped obstruction block are fixedly connected to one side of the lifting groove and the T-shaped slide, a connecting rod is fixedly connected to one side of the I-shaped block, and a triangular block is provided on one side of the discharge filter plate.

[0014] As a preferred embodiment of the anti-clogging device for artificial wetland wastewater treatment according to the present invention, wherein: a transmission rocker arm is rotatably connected to the outer surface of the connecting rod, a corrosion-resistant blade is fixedly connected to the side of the transmission rocker arm near the protective filter frame, there are two sets of transmission rocker arms, and both sets of transmission rocker arms are symmetrical about the center of the connecting rod, and a fixing rod is fixedly connected to one end of each set of transmission rocker arms.

[0015] As a preferred embodiment of the anti-clogging device for artificial wetland wastewater treatment according to the present invention, wherein: one end of the traction rope is fixedly connected to the outer surface of the fixed rod, the outer surface of the connecting rod is rotatably connected to the traction rope, one end of the transmission rocker arm is in contact with the rubber buffer pad, and the end of the transmission rocker arm away from the rubber buffer pad is in contact with the actuating rod.

[0016] A method for preventing clogging in constructed wetland wastewater treatment, the method being applicable to any of the above-mentioned anti-clogging devices for constructed wetland wastewater treatment, and the method comprising the following steps: Step 1: Wastewater introduction and graded filtration: The wastewater to be treated flows through the wetland lawn body, and is initially purified and filtered through the soil impermeable layer and the matrix layer in sequence. Then it is coarsely filtered through the protective filter plate, and finally enters the fine filtration zone composed of protective filter frames. Step 2: Hydraulic kinetic energy harvesting and conversion: The water flow that flows into the main channel after filtration is accelerated through the converging tube and impacts the fan blades, driving the connecting shaft to rotate, thereby capturing the kinetic energy of the water flow and converting it into continuous mechanical rotational kinetic energy. Step 3: Power transmission and motion conversion: The rotation of the connecting shaft drives the transmission shaft to rotate through the drive gear and transmission gear set. The dial and lever on the transmission shaft convert the continuous rotation into a periodic dialing action. Step 4: Cutting and cleaning action: The periodic prying action of the lever is applied to one end of the transmission rocker arm, forcing the transmission rocker arm to swing around the fulcrum of the connecting rod. The corrosion-resistant blade fixed to the other end of the rocker arm then makes an arc-shaped movement to cut and clean the plant roots, biofilm and other blockages attached to or embedded in the surface of the protective filter frame. Step 5: Scraping and discharge linkage action: When the transmission rocker arm swings, it pulls the discharge filter plate outward in the T-shaped slide groove through the fixed rod and traction rope, overcoming the elastic force of the first spring. The triangular block at the front end of the discharge filter plate scrapes up and gathers the detached blockages and particles deposited at the bottom of the side flow channel. Step 6: Debris flushing and system reset: The scraped-up blockages are flushed away by the main water flow. After the lever passes the point of action, the discharge filter plate retracts to its original position under the restoring force of the first spring. At the same time, under the action of the second spring and the rubber buffer pad, the transmission rocker and I-shaped block reset, ready to receive the next lever. Step 7: Continuous automatic operation: As long as there is water flowing through the system, the above-mentioned kinetic energy acquisition, power transmission, cutting, scraping and resetting processes will be carried out automatically in a cycle, realizing the unattended continuous anti-clogging function.

[0017] The beneficial effects of this invention are: 1. The wetland lawn consists of a soil impermeable layer, a matrix layer, protective filter plates, protective filter frames, a main flow channel, and a side flow channel. The soil impermeable layer filters rainwater to prevent sewage infiltration and avoid groundwater pollution. The matrix layer, composed of loose and porous materials (such as gravel), provides a good environment for microbial growth and pollutant adhesion, while also serving as a filter and adsorbent. Furthermore, the protective filter plates and frames work together to prevent a large amount of impurities from falling and accumulating in the discharge channel during the infiltration process, thereby improving the filtration and protection effect of the equipment to a certain extent. 2. Utilizing a flow tube, actuating disc, bearing block, drive shaft, connecting ring, actuating rod, connecting shaft, trapezoidal block, drive gear, fan blade, and transmission gear, the liquid inside the main flow channel pushes the fan blade during its flow, thereby causing the fan blade to quickly drive the connecting shaft to rotate. This, in turn, drives the drive gear to rotate synchronously through the connecting shaft. The meshing of the drive gear and the transmission gear causes the transmission gear to quickly drive the transmission shaft to rotate, thus using the flow of liquid inside the main flow channel to drive the anti-clogging cutting unit to work. 3. Utilizing a first T-shaped obstruction block, a second T-shaped obstruction block, a discharge filter plate, a T-shaped chute, a first spring, a lifting chute, a traction rope, a rubber buffer pad, a second spring, a fixed rod, an I-shaped block, a connecting rod, a transmission rocker arm, and corrosion-resistant blades, a drive shaft drives a lever, causing the lever to move the transmission rocker arm, allowing it to rotate around the connecting rod. Simultaneously, the second spring causes the I-shaped block to vibrate and move when the transmission rocker arm rotates under force, thus increasing its rotation range. Furthermore, corrosion-resistant blades on one side of the transmission rocker arm cut the roots wrapped around the surface of the protective filter frame to avoid affecting its filtration effect. The traction rope pulls the discharge filter plate, allowing it to move within the T-shaped chute. The discharge filter plate scrapes away accumulated debris inside the flow channel, preventing blockages in the internal flow path. The liquid inside the main flow channel flushes away the debris, further improving the anti-clogging effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the anti-clogging device for artificial wetland wastewater treatment proposed in this invention. Figure 2 This is a schematic diagram of the distribution structure of the main flow channel and side flow channel of the anti-clogging device for constructed wetland wastewater treatment proposed in this invention; Figure 3 This is a schematic diagram of the anti-clogging cutting unit structure of the anti-clogging device for constructed wetland wastewater treatment proposed in this invention; Figure 4 This is a schematic diagram of the transmission rocker arm distribution structure of the anti-clogging device for artificial wetland wastewater treatment proposed in this invention; Figure 5 This is a schematic diagram of the overall structure of the core drive unit and the anti-clogging cutting unit of the anti-clogging device for artificial wetland wastewater treatment proposed in this invention. Figure 6 This is a schematic diagram of the transmission shaft distribution structure of the anti-clogging device for artificial wetland wastewater treatment proposed in this invention; Figure 7 This is a schematic diagram of the bundle tube distribution structure of the anti-clogging device for constructed wetland wastewater treatment proposed in this invention; Figure 8 This is a schematic diagram of the drive gear distribution structure of the anti-clogging device for constructed wetland wastewater treatment proposed in this invention; Figure 9 This is a flowchart illustrating the anti-clogging method for constructed wetland wastewater treatment proposed in this invention.

[0019] Figure Descriptions: 100. Main Unit; 101. Wetland Turf Body; 102. Soil Impermeable Layer; 103. Matrix Layer; 104. Protective Filter Plate; 105. Protective Filter Frame; 200. Core Drive Unit; 201. Flow Tube; 202. Actuating Disc; 203. Bearing Block; 204. Drive Shaft; 205. Connecting Ring; 206. Actuating Rod; 207. Connecting Shaft; 208. Trapezoidal Block; 209. Drive Gear; 210. Fan Blade; 211. Transmission 212 Gear; 213 Main flow channel; 300 Side flow channel; 301 Anti-clogging cutting unit; 302 First T-shaped obstruction block; 303 Second T-shaped obstruction block; 304 Discharge filter plate; 305 T-shaped chute; 306 First spring; 307 Lifting channel; 308 Traction rope; 309 Rubber buffer pad; 310 Second spring; 311 Fixed rod; 312 I-shaped block; 313 Connecting rod; 314 Corrosion-resistant blade. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive, either alone or selectively, with other embodiments.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0024] Example 1:

[0025] Reference Figure 1 - Figure 9 As an embodiment of the present invention, an anti-clogging device for artificial wetland wastewater treatment is provided, including a main body unit 100, a core drive unit 200, and an anti-clogging cutting unit 300.

[0026] The main unit 100 includes a wetland turf body 101 and a soil impermeable layer 102 disposed on the lower surface of the wetland turf body 101. A matrix layer 103 is disposed on the lower surface of the soil impermeable layer 102, and a protective filter plate 104 is fixedly connected to the lower surface of the matrix layer 103. Secondly, the core drive unit 200 includes a main flow channel 212 formed in the matrix layer 103 and a side flow channel 213 formed in the matrix layer 103. A protective filter frame 105 is fixedly connected in the side flow channel 213. One side of the protective filter frame 105 is fixedly connected to the lower surface of the protective filter plate 104. There are several protective filter frames 105, and the number of protective filter frames 105 is adapted to the number of side flow channels 213. Secondly, the anti-blocking cutting unit 300 includes a T-shaped slide groove 304 on one side of the protective filter frame 105 and a lifting groove 306 on one side thereon. A rubber buffer pad 308 is fixedly connected to one side of the protective filter frame 105. An I-shaped block 311 is slidably connected in the lifting groove 306. A first spring 305 is fixedly connected to the inner surface of the T-shaped slide groove 304.

[0027] Furthermore, the soil impermeable layer 102 is mainly used to prevent sewage from seeping downwards and avoid polluting groundwater. At the same time, it utilizes the protective filter plate 104 and the protective filter frame 105 to filter water to a certain extent during the infiltration process. The soil impermeable layer 102 constructs a physical barrier to effectively block the vertical migration of sewage and pollutants contained therein, protecting the safety of the groundwater environment. The protective filter plate 104 serves as a primary filtration interface, performing preliminary screening of sewage seeping from top to bottom and intercepting larger particles. The multiple protective filter frames 105 set below constitute a secondary fine filtration unit. Their porous structure further filters suspended solids while providing installation and operating space for subsequent anti-clogging actuators, together forming an integrated structure of graded filtration and functional integration.

[0028] Furthermore, a flow tube 201 is fixedly connected to one side of the protective filter frame 105, and a trapezoidal block 208 is fixedly connected inside the flow tube 201. A connecting ring 205 is fixedly connected to one side of one set of protective filter frames 105. The flow tube 201 collects and guides the water flow that has undergone preliminary filtration and flows into the main flow channel 212. The streamlined structure of the trapezoidal block 208 straightens and accelerates the water flow in the flow tube 201, ensuring that the water flow energy is concentrated and the direction is stable. The connecting ring 205 serves as a mounting support for rotating parts, providing a stable support foundation for converting the kinetic energy of the water flow into mechanical rotational power.

[0029] Furthermore, there are two sets of connecting rings 205, and both sets of connecting rings 205 are symmetrical about the center of the protective filter plate 104. A connecting shaft 207 is rotatably connected inside the connecting ring 205, and a fan blade 210 is fixedly connected to the outer surface of the connecting shaft 207. The symmetrical arrangement of the connecting rings 205 ensures the installation balance and coaxiality of the connecting shaft 207. When the water flow accelerated by the beam tube 201 impacts the fan blade 210, the kinetic energy of the water flow is efficiently converted into the rotational mechanical energy of the connecting shaft 207, so that the drive mechanism can operate continuously relying only on the water flow power of the treatment system itself, without the need for additional external energy.

[0030] Furthermore, a drive gear 209 is fixedly connected to the outer surface of the connecting shaft 207, and a bearing block 203 is fixedly connected to one side of the protective filter frame 105. A transmission shaft 204 is rotatably connected inside the bearing block 203, and a dial 202 is fixedly connected to the outer surface of the transmission shaft 204. The rotational power obtained by the connecting shaft 207 is transmitted to the transmission gear 211 that meshes with it through the drive gear 209, thereby driving the transmission shaft 204 to rotate. The bearing block 203 provides rotational support for the transmission shaft 204 with low frictional resistance. The dial 202 fixed on the transmission shaft 204 converts the rotational motion into the periodic dialing action required by the subsequent mechanism, thus forming a complete power chain from hydraulic drive to mechanical transmission.

[0031] Furthermore, a toggle lever 206 is fixedly connected to one side of the toggle disc 202. There are several toggle discs 202, and they are all equidistantly distributed on the outer surface of the drive shaft 204. A drive gear 211 is fixedly connected to one end of the drive shaft 204. One side of the drive gear 211 is meshed with the side of the drive gear 209. Through the multiple toggle discs 202 and the toggle levers 206 on them, a series of periodic and precisely positioned toggle forces are generated when the drive shaft 204 rotates. The meshing of the drive gear 211 and the drive gear 209 ensures that the speed ratio and direction of the power transmission meet the design requirements, so that the continuous rotation generated by the hydraulic drive is finally converted into intermittent triggering power for the anti-clogging cutting unit 300, realizing the conversion of energy transmission and action mode.

[0032] The system utilizes a wetland lawn body 101, a soil impermeable layer 102, a matrix layer 103, a protective filter plate 104, a protective filter frame 105, a main flow channel 212, and a side flow channel 213. The soil impermeable layer 102 filters rainwater to prevent sewage infiltration and avoid groundwater pollution. Meanwhile, the matrix layer 103, composed of loose and porous materials such as gravel, provides a good environment for microbial growth and pollutant adhesion, thus playing a role in filtration and adsorption. Furthermore, the protective filter plate 104 and the protective filter frame 105 work together to prevent a large amount of impurities from falling and accumulating in the discharge channel during the infiltration process, thereby improving the filtration and protection effect of the equipment to a certain extent. The system utilizes a beam tube 201, actuating disc 202, bearing block 203, drive shaft 204, connecting ring 205, actuating lever 206, connecting shaft 207, trapezoidal block 208, drive gear 209, fan blade 210, and transmission gear 211 to propel the fan blade 210 during its flow. This causes the fan blade 210 to rapidly rotate the connecting shaft 207, which in turn drives the drive gear 209 to rotate. The meshing of the drive gear 209 and the transmission gear 211 causes the transmission gear 211 to rapidly rotate the transmission shaft 204. Thus, the flow of liquid within the main stream 212 drives the anti-clogging cutting unit 300 to operate. Utilizing a first T-shaped obstruction block 301, a second T-shaped obstruction block 302, a discharge filter plate 303, a T-shaped chute 304, a first spring 305, a lifting groove 306, a traction rope 307, a rubber buffer pad 308, a second spring 309, a fixed rod 310, an I-shaped block 311, a connecting rod 312, a transmission rocker arm 313, and a corrosion-resistant blade 314, the transmission shaft 204 drives the actuating rod 206, thereby causing the actuating rod 206 to actuate the transmission rocker arm 313, allowing it to rotate around the connecting rod 312. Simultaneously, the second spring 309 causes the I-shaped block 311 to vibrate and move when the transmission rocker arm 313 is rotated under force, thus enabling the transmission... During rotation, the rocker arm 313 can increase its rotation range to a certain extent. Furthermore, the corrosion-resistant blade 314 on one side of the rocker arm 313 is used to cut the roots wrapped around the surface of the protective filter frame 105 to avoid affecting the filtration effect of the protective filter frame 105. At the same time, the traction rope 307 is used to pull the discharge filter plate 303 so that it can move within the T-shaped chute 304. The discharge filter plate 303 is used to scrape the debris accumulated inside the flow measuring channel, thereby preventing blockage of the internal flow path to a certain extent. The liquid inside the main flow channel 212 is used to flush the debris, thereby improving the anti-blocking effect to a certain extent.

[0033] A method for preventing clogging in constructed wetland wastewater treatment, applicable to any of the above-mentioned anti-clogging devices for constructed wetland wastewater treatment, and comprising the following steps: Step 1: Wastewater introduction and graded filtration: The wastewater to be treated flows through the wetland lawn body 101, and passes through the soil impermeable layer 102 and the matrix layer 103 for preliminary purification and infiltration. Then it passes through the protective filter plate 104 for coarse filtration, and finally enters the fine filtration zone composed of the protective filter frame 105. Step 2: Hydraulic kinetic energy collection and conversion: The water flow that flows into the main channel 212 after filtration is accelerated by the converging tube 201 and impacts the fan blade 210, driving the connecting shaft 207 to rotate, thereby capturing the kinetic energy of the water flow and converting it into continuous mechanical rotational kinetic energy. Step 3: Power transmission and motion conversion: The rotation of the connecting shaft 207 drives the transmission shaft 204 to rotate through the drive gear 209 and the transmission gear 211 set. The toggle disc 202 and the toggle lever 206 on the transmission shaft 204 convert the continuous rotation into a periodic toggle action. Step 4: Cutting and cleaning action: The periodic tossing action of the lever 206 is used to drive the rocker arm 313, forcing the rocker arm 313 to swing around the fulcrum of the connecting rod 312. The corrosion-resistant blade 314 fixed at the other end of the rocker arm moves in an arc shape to cut and clean the plant roots, biofilm and other blockages attached to or embedded in the surface of the protective filter frame 105. Step 5: Scraping and Discharge Linkage Action: When the transmission rocker arm 313 swings, it pulls the discharge filter plate 303 outward within the T-shaped chute 304 through the fixed rod 310 and the traction rope 307, overcoming the elastic force of the first spring 305. The triangular block at the front end of the discharge filter plate 303 scrapes up and gathers the loose blockages and particles deposited at the bottom of the side flow channel 213; Step 6: Debris flushing and system reset: The scraped-up blockages are flushed away by the water flow in the main channel 212. After the actuating rod 206 passes the point of action, the discharge filter plate 303 retracts to its original position under the restoring force of the first spring 305. At the same time, under the action of the second spring 309 and the rubber buffer pad 308, the transmission rocker arm 313 and the I-shaped block 311 reset, ready to receive the next actuation. Step 7: Continuous automatic operation: As long as there is water flowing through the system, the above-mentioned kinetic energy acquisition, power transmission, cutting, scraping and resetting processes will be carried out automatically in a cycle, realizing the unattended continuous anti-clogging function.

[0034] Example 2:

[0035] Reference Figure 3 - Figure 5The difference from Embodiment 1 is that: one end of the first spring 305 is fixedly connected to the discharge filter plate 303, one side of the discharge filter plate 303 is fixedly connected to the traction rope 307, both sides of the I-shaped block 311 are fixedly connected to the second spring 309, one side of the lifting groove 306 and the T-shaped slide 304 are respectively fixedly connected to the first T-shaped obstruction block 301 and the second T-shaped obstruction block 302, one side of the I-shaped block 311 is fixedly connected to the connecting rod 312, and one side of the discharge filter plate 303 is provided with a triangular block. The first spring 305 provides the discharge filter plate 303 with a reset elastic force so that it can automatically retract after the scraping action is completed. The traction rope 307 links the movement of the transmission rocker arm 313 to the movement of the discharge filter plate 303; the second spring 309 enables the I-shaped block 311 and its connecting rod 312 to have elastic floating capability to buffer and adapt to the prying action; the first T-shaped obstruction block 301 and the second T-shaped obstruction block 302 respectively limit the extreme positions of the lifting of the I-shaped block 311 and the sliding of the discharge filter plate 303, ensuring that the range of motion is controllable; the connecting rod 312 serves as the rotation fulcrum of the transmission rocker arm 313; the triangular block structure at the front end of the discharge filter plate 303 is conducive to gathering and scraping away sediments, so that when the water flow is large, it can be flushed and driven to a certain extent.

[0036] Furthermore, a transmission pry bar 313 is rotatably connected to the outer surface of the connecting rod 312. A corrosion-resistant blade 314 is fixedly connected to the side of the transmission pry bar 313 near the protective filter frame 105. There are two sets of transmission pry bars 313, and both sets of transmission pry bars 313 are symmetrical about the center of the connecting rod 312. A fixed rod 310 is fixedly connected to one end of each set of transmission pry bars 313. The connecting rod 312 serves as a lever fulcrum, allowing the transmission pry bars 313 to swing under external force. The symmetrically arranged two sets of transmission pry bars 313 and corrosion-resistant blades 314 can simultaneously clean both sides of the protective filter frame 105, improving efficiency. The corrosion-resistant blades 314 are used to cut plant roots and fibrous debris that are wrapped around or blocked in the filter frame pores. The fixed rod 310 connects one end of each set of transmission pry bars 313, making them linked and serving as the force point for the traction rope 307.

[0037] Furthermore, one end of the traction rope 307 is fixedly connected to the outer surface of the fixed rod 310, and the traction rope 307 is rotatably connected to the outer surface of the connecting rod 312. One end of the transmission rocker arm 313 is in contact with the rubber buffer pad 308, and the other end of the transmission rocker arm 313 away from the rubber buffer pad 308 is in contact with the actuating rod 206. The traction rope 307 couples the swing of the transmission rocker arm 313 with the linear movement of the discharge filter plate 303, realizing the linkage between the "cutting" and "scraping" actions. The rubber buffer pad 308 at one end of the transmission rocker arm 313 is used to absorb the impact during its swing, reduce noise and protect the structure. The other end of the transmission rocker arm 313 is designed to contact the actuating rod 206, directly receiving the periodic actuating force from the core drive unit 200, thereby ultimately converting the water flow power into the mechanical energy of the cleaning action.

[0038] Working principle: The main structure of the device, from top to bottom, includes a wetland lawn body 101, a soil impermeable layer 102, a matrix layer 103, and a bottom protective filter plate 104. The wastewater to be treated first flows through the wetland lawn, where it undergoes preliminary purification under the synergistic effect of plants and microorganisms. Then it permeates downwards. The soil impermeable layer 102 effectively prevents wastewater and pollutants from seeping down and polluting groundwater. The matrix layer 103 is composed of porous materials such as gravel, providing a carrier for the attachment and growth of microorganisms, and further adsorbing and filtering pollutants. Finally, the wastewater passes through the protective filter plate 104, completing the primary screening of larger particles. Multiple protective filter frames 105 are arranged in parallel below the protective filter plate 104. These filter frames are embedded in the side flow channels 213 opened in the matrix layer 103 and are connected to the main flow channel 212 above. The protective filter frames 105 constitute a fine filtration unit. Its porous structure performs final filtration of the water flow and also becomes the main area where plant roots easily attach and grow and where suspended solids easily settle. This is the part of the device that needs to be focused on preventing blockage and cleaning. Secondly, the core function of the core drive unit 200 is to convert the kinetic energy of the water flow during sewage treatment into rotational power that can be used for mechanical cleaning. Its energy comes entirely from the system itself, requiring no external power input. The relatively clean water flow, filtered by the protective filter frame 105, flows into the main flow channel 212. To concentrate and utilize the energy of this water flow, the device is equipped with a jet pipe 201, which connects the main flow channel 212 and the protective filter frame 105. The trapezoidal block 208 fixed inside the jet pipe 201 rectifies and accelerates the water flow, forming a concentrated, high-speed water jet. This high-speed jet impacts the fan blades 210 mounted on the connecting shaft 207. The connecting shaft 207 is supported by two sets of symmetrically arranged connecting rings 205, ensuring rotational stability. Under the continuous impact of the water flow, the fan blades 210 drive the connecting shaft 207 to rotate smoothly, thus efficiently converting the kinetic energy of the water flow into rotational mechanical energy. To achieve power transmission and action mode conversion, a drive gear 209 is fixed on the connecting shaft 207. The drive gear 209 meshes with the transmission gear 211 installed at one end of the transmission shaft 204. The transmission shaft 204 is supported by the bearing block 203 and can rotate under low friction. Therefore, the rotation of the connecting shaft 207 drives the transmission shaft 204 to rotate synchronously at a certain speed ratio through this pair of gears. Multiple actuating discs 202 are fixed at equal intervals on the transmission shaft 204. Each actuating disc 202 has an actuating rod 206 mounted on its outer edge. When the transmission shaft 204 rotates, the actuating disc 202 drives the actuating rod 206 to make uniform circular motion, thereby converting the continuous rotational motion generated by water power into a series of periodic and precisely positioned reciprocating actuating actions, providing triggering power for the subsequent cleaning actuator. Secondly, the anti-clogging cutting unit 300 is the core of the automatic cleaning function. It receives the periodic actuation force from the core drive unit 200 and decomposes it into two linked actions: "cutting" the surface of the filter frame and "scraping" the bottom of the flow channel. The core of the actuator is the transmission rocker arm 313 that rotates around the connecting rod 312. The connecting rod 312 is fixed on the I-shaped block 311 that can float up and down along the lifting groove 306. The second springs 309 on both sides of the I-shaped block 311 give it elastic floating ability. One end of the transmission rocker arm 313 contacts the actuation rod 206 of the core drive unit 200, and the other end is equipped with a corrosion-resistant blade 314. The middle part is connected to the traction rope 307 through the fixing rod 310. Then, the anti-clogging cutting unit 300 is the core of the automatic cleaning function. It receives the periodic pushing force from the core drive unit 200 and decomposes it into two linked actions: "cutting" the surface of the filter frame and "scraping" the bottom of the flow channel. The core of the actuator is the transmission rocker arm 313 that rotates around the connecting rod 312. The connecting rod 312 is fixed on the I-shaped block 311 that can float up and down along the lifting groove 306. The second springs 309 on both sides of the I-shaped block 311 give it elastic floating energy. Force is applied to the transmission rocker arm 313. One end of the rocker arm 313 contacts the actuating rod 206 of the core drive unit 200, and the other end is equipped with a corrosion-resistant blade 314. The middle part is connected to the traction rope 307 via a fixing rod 310. As the transmission rocker arm 313 swings, the traction rope 307, which is rigidly connected to it via the fixing rod 310, is tightened. The other end of the traction rope 307 is connected to the discharge filter plate 303. When the traction rope 307 is pulled, the discharge filter plate 303 overcomes the tension of the first spring 305 and moves from the protective filter frame. The T-shaped chute 304 on the side of the 105 extends into the side flow channel 213. The front end of the discharge filter plate 303 is designed with a triangular block, which can scrape up and collect the cut root fragments, detached biofilm and other suspended particles deposited at the bottom of the side flow channel 213. The collected debris is exposed in the water flow path of the main flow channel 212, and is washed away by the continuous water flow and discharged from the system with the effluent, preventing it from redepositing in the system. When the actuating rod 206 rotates past the contact point, it pushes the transmission lever 313. When the force disappears, the discharge filter plate 303 is pulled back to its original position in the T-shaped groove 304 under the rebound force of the first spring 305. At the same time, under the restoring force of the second spring 309 and the rubber buffer pad 308, the transmission rocker arm 313 and the I-shaped block 311 also return to their initial equilibrium positions, waiting for the next triggering. The first T-shaped blocking block 301 and the second T-shaped blocking block 302 are used to limit the limit stroke of the lifting of the I-shaped block 311 and the sliding of the discharge filter plate 303, respectively, to ensure that the range of motion is controllable. In conclusion, this method forms a complete self-driven and self-maintaining work cycle: wastewater treatment and energy generation are carried out simultaneously, water flow drives the mechanical mechanism, mechanical motion is transformed into cutting and scraping actions, blockages are cleared and discharged with the water flow, the mechanism automatically resets and prepares for the next cycle. The entire process is powered entirely by the flow of wastewater within the system, realizing "treating blockages with wastewater". As long as wastewater flows through, the cleaning action will occur continuously, automatically, and at low intensity, eliminating potential blockages in their infancy and avoiding the long-term accumulation of blockages.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An anti-clogging device for constructed wetland wastewater treatment, characterized in that, The anti-clogging device for the constructed wetland wastewater treatment includes: The main unit (100) includes a wetland turf body (101) and a soil impermeable layer (102) disposed on the lower surface of the wetland turf body (101). A matrix layer (103) is disposed on the lower surface of the soil impermeable layer (102), and a protective filter plate (104) is fixedly connected to the lower surface of the matrix layer (103). The core drive unit (200) includes a main flow channel (212) opened in the matrix layer (103) and a side flow channel (213) opened in the matrix layer (103). A protective filter frame (105) is fixedly connected in the side flow channel (213). One side of the protective filter frame (105) is fixedly connected to the lower surface of the protective filter plate (104). The number of protective filter frames (105) is several, and the number of protective filter frames (105) is adapted to the number of side flow channels (213). The anti-clogging cutting unit (300) includes a T-shaped groove (304) on one side of a protective filter frame (105) and a lifting groove (306) on one side thereon. A rubber buffer pad (308) is fixedly connected to one side of the protective filter frame (105). An I-shaped block (311) is slidably connected in the lifting groove (306). A first spring (305) is fixedly connected to the inner surface of the T-shaped groove (304).

2. The anti-clogging device for constructed wetland wastewater treatment according to claim 1, characterized in that: The soil impermeable layer (102) is mainly used to prevent sewage from seeping down and avoid polluting groundwater. At the same time, it uses protective filter plates (104) and protective filter frames (105) to filter water to a certain extent during the infiltration process.

3. The anti-clogging device for constructed wetland wastewater treatment according to claim 1, characterized in that: A beam tube (201) is fixedly connected to one side of the protective filter frame (105), and a trapezoidal block (208) is fixedly connected inside the beam tube (201). A connecting ring (205) is fixedly connected to one side of one set of the protective filter frames (105).

4. The anti-clogging device for constructed wetland wastewater treatment according to claim 1, characterized in that: There are two sets of connecting rings (205), and both sets of connecting rings (205) are symmetrical about the center of the protective filter plate (104). A connecting shaft (207) is rotatably connected inside the connecting ring (205), and a fan blade (210) is fixedly connected to the outer surface of the connecting shaft (207).

5. The anti-clogging device for constructed wetland wastewater treatment according to claim 1, characterized in that: A drive gear (209) is fixedly connected to the outer surface of the connecting shaft (207), a bearing block (203) is fixedly connected to one side of the protective filter frame (105), a transmission shaft (204) is rotatably connected inside the bearing block (203), and a dial (202) is fixedly connected to the outer surface of the transmission shaft (204).

6. The anti-clogging device for constructed wetland wastewater treatment according to claim 5, characterized in that: A lever (206) is fixedly connected to one side of the actuating disk (202). There are several actuating disks (202), and the several actuating disks (202) are evenly distributed on the outer surface of the transmission shaft (204). A transmission gear (211) is fixedly connected to one end of the transmission shaft (204), and one side of the transmission gear (211) is meshed with the side of the drive gear (209).

7. The anti-clogging device for constructed wetland wastewater treatment according to claim 1, characterized in that: One end of the first spring (305) is fixedly connected to a discharge filter plate (303), and a traction rope (307) is fixedly connected to one side of the discharge filter plate (303). The two sides of the I-shaped block (311) are fixedly connected to a second spring (309). The lifting groove (306) and the T-shaped slide (304) are respectively fixedly connected to one side of a first T-shaped obstruction block (301) and a second T-shaped obstruction block (302). The I-shaped block (311) is fixedly connected to one side of a connecting rod (312), and a triangular block is provided on one side of the discharge filter plate (303).

8. The anti-clogging device for constructed wetland wastewater treatment according to claim 7, characterized in that: The outer surface of the connecting rod (312) is rotatably connected to a transmission rocker arm (313). The transmission rocker arm (313) is fixedly connected to a corrosion-resistant blade (314) on the side near the protective filter frame (105). There are two sets of transmission rocker arms (313), and both sets of transmission rocker arms (313) are symmetrical about the center of the connecting rod (312). One end of each set of transmission rocker arms (313) is fixedly connected to a fixing rod (310).

9. The anti-clogging device for constructed wetland wastewater treatment according to claim 8, characterized in that: One end of the traction rope (307) is fixedly connected to the outer surface of the fixed rod (310), and the traction rope (307) is rotatably connected to the outer surface of the connecting rod (312). One end of the transmission rocker (313) is in contact with the rubber buffer pad (308), and the end of the transmission rocker (313) away from the rubber buffer pad (308) is in contact with the actuating rod (206).

10. A method for preventing clogging in constructed wetland wastewater treatment, wherein the method is applicable to any one of the anti-clogging devices for constructed wetland wastewater treatment according to claims 1-9, characterized in that, The anti-clogging method includes the following steps: Step 1: Wastewater introduction and graded filtration: The wastewater to be treated flows through the wetland lawn body (101), and is initially purified and filtered through the soil impermeable layer (102) and the matrix layer (103) in sequence. Then it is coarsely filtered through the protective filter plate (104) and finally enters the fine filtration zone composed of the protective filter frame (105). Step 2: Hydraulic kinetic energy collection and conversion: The water flow that flows into the main channel (212) after filtration is accelerated by the converging tube (201) and impacts the fan blades (210), driving the connecting shaft (207) to rotate, thereby capturing the kinetic energy of the water flow and converting it into continuous mechanical rotational kinetic energy; Step 3: Power transmission and motion conversion: The rotation of the connecting shaft (207) drives the transmission shaft (204) to rotate through the drive gear (209) and transmission gear (211) set. The dial (202) and dial lever (206) on the transmission shaft (204) convert the continuous rotation into a periodic dialing action. Step 4: Cutting and cleaning action: The periodic prying action of the lever (206) is applied to one end of the transmission pry bar (313), forcing the transmission pry bar (313) to swing around the fulcrum of the connecting rod (312), and the corrosion-resistant blade (314) fixed at the other end of it makes an arc-shaped movement to cut and clean the plant roots, biofilm and other blockages attached to or embedded in the surface of the protective filter frame (105); Step 5: Scraping and discharge linkage action: When the transmission rocker arm (313) swings, it pulls the discharge filter plate (303) outward in the T-shaped slide groove (304) through the fixed rod (310) and the traction rope (307) to overcome the elastic force of the first spring (305). The triangular block at the front end of the discharge filter plate (303) scrapes up and gathers the detached blockages and particles deposited at the bottom of the side flow channel (213). Step 6: Debris flushing and system reset: The scraped blockages are flushed away by the water flow in the main channel (212). After the actuating rod (206) passes the point of action, the discharge filter plate (303) retracts to its original position under the restoring force of the first spring (305). At the same time, under the action of the second spring (309) and the rubber buffer pad (308), the transmission rocker (313) and the I-shaped block (311) reset, ready to receive the next actuation. Step 7: Continuous automatic operation: As long as there is water flowing through the system, the above-mentioned kinetic energy acquisition, power transmission, cutting, scraping and resetting processes will be carried out automatically in a cycle, realizing the unattended continuous anti-clogging function.

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