Sewage treatment aeration device with self-cleaning operation and maintenance function

Abstract

The application discloses a sewage treatment aeration device with a self-cleaning operation and maintenance function, which comprises a cleaning pool, the inner bottom wall of the cleaning pool is in an inclined shape, the inner bottom wall of the cleaning pool is integrally formed with a collecting groove, the inner part of the cleaning pool is connected with a cleaning seat through a moving structure, the outer part of the cleaning seat is hingedly connected with a shovel plate, the tip of the shovel plate is attached to the inner bottom wall of the cleaning pool, the outer part of the cleaning seat is hingedly connected with an upper blocking structure, and the dirty impurities can be centrally delivered to the outside through the mud pump which is communicated outside the collecting groove, so that the effect of rapid cleaning is achieved; meanwhile, when the shovel plate moves reversely, the tip direction of the shovel plate does not attach to the bottom of the cleaning pool, so that the effect of reversely pushing the dirty impurities is not caused; meanwhile, the blocking surface can be formed through the upper baffle, the phenomenon that the dirty impurities are floated to other places through water flow when the shovel plate moves is reduced, and the rapid collection and cleaning work of the dirty impurities are achieved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, specifically to a wastewater treatment aeration device with self-cleaning and maintenance functions. Background Technology

[0002] In wastewater treatment, aeration devices are one of the core pieces of equipment. They maintain the activity of microorganisms by injecting air into the water, thereby achieving the degradation of organic matter. However, during long-term operation, suspended particles, sludge, and other impurities in the wastewater will continuously settle and accumulate at the bottom of the aeration tank. If not cleaned in time, this will not only reduce aeration efficiency but also lead to anaerobic fermentation at the bottom of the tank, producing odors and affecting the quality of the effluent.

[0003] Most existing wastewater treatment aeration devices employ fixed aeration heads or simple liftable structures, resulting in limited self-cleaning capabilities. While some devices are equipped with sludge scraping mechanisms, these typically require additional drive motors or manual operation after shutdown, leading to high maintenance costs. Furthermore, existing cleaning structures often use single-plane scrapers, which allow scraped-up impurities to easily disperse again due to water flow disturbances, making effective collection difficult and resulting in poor cleaning performance. Additionally, the barrier structure is independent of the aeration function, preventing the use of the aeration system's own gas power to assist in cleaning, thus wasting energy. While using filters to intercept fine impurities is feasible, the filters are easily clogged by sludge and lack effective online self-cleaning methods, requiring frequent disassembly and cleaning, severely impacting the device's continuous operation. Therefore, this paper proposes a wastewater treatment aeration device with self-cleaning and maintenance capabilities. Summary of the Invention

[0004] The purpose of this invention is to provide a wastewater treatment aeration device with self-cleaning operation and maintenance function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wastewater treatment aeration device with self-cleaning and maintenance functions, comprising a cleaning tank, wherein the inner bottom wall of the cleaning tank is inclined, a collection trough is integrally formed on the inner bottom wall of the cleaning tank, a cleaning seat is connected to the inside of the cleaning tank via a movable structure, a shovel plate is hinged to the outside of the cleaning seat, the tip of the shovel plate is in contact with the inner bottom wall of the cleaning tank, an upper blocking structure is hinged to the outside of the cleaning seat, the upper blocking structure and the shovel plate form a "V" shape, and an aeration pushing structure is installed on the cleaning seat.

[0006] The upper barrier structure is used in conjunction with the shovel to push dirt and impurities located on the bottom wall of the cleaning pool into the collection tank. An extension structure is installed on the outside of the upper barrier structure.

[0007] The extension structure is used to expand the barrier surface of the upper barrier structure, reducing the amount of dirt flowing through the upper barrier structure and drifting into other parts of the cleaning pool.

[0008] Preferably, the upper barrier structure includes an upper baffle, which is hinged to the outside of the cleaning seat via the same hinge axis as the shovel. The upper baffle and the shovel form a V-shape. The V-shaped shovel and the upper baffle can push the dirt and impurities located on the bottom wall of the cleaning pool into the collection tank, preventing the dirt and impurities from being swept up by the shovel and drifting to other positions by the water flow and failing to be concentrated and pushed into the collection tank.

[0009] Preferably, the expansion structure includes a sliding groove formed outside the upper baffle, a T-shaped slider slidably connected inside the sliding groove, an extension baffle fixedly connected to the side of the T-shaped slider away from the sliding groove, the bottom of the extension baffle being connected to the aeration pushing structure, and the extension baffle being used to move upward to expand the blocking area of ​​the upper baffle when the shovel scoops up dirt.

[0010] Preferably, the extension structure further includes an arc-shaped catch plate, which is inserted into the top of the extension baffle. The arc-shaped catch plate is arc-shaped and is used to form a snap-fit ​​net above when a lot of impurities are left between the upper baffle and the shovel plate and move with the water flow, thus preventing impurities from drifting over the extension baffle and flowing to other parts of the water flow.

[0011] Preferably, the aeration propulsion structure includes a storage box, which is fixedly connected to the cleaning seat. An aeration delivery pipe is connected to the storage box, and the end of the aeration delivery pipe away from the storage box is connected to the aerator. A diversion valve is installed inside the storage box, and one of the outlets of the diversion valve is connected to an electrically controlled valve. The outlet of the electrically controlled valve is connected to a propulsion wear-resistant airbag. One side of the outer wall of the propulsion wear-resistant airbag is fixedly connected to the outer wall of the storage box, and the other side of the outer wall of the propulsion wear-resistant airbag is fixedly connected to the outside of the upper baffle. The propulsion wear-resistant airbag is used to expand when gas from the aerator is transmitted into the propulsion wear-resistant airbag. The expanded propulsion wear-resistant airbag pushes the upper baffle and the shovel plate to fit against the inner bottom wall of the cleaning tank.

[0012] Preferably, the aeration propulsion structure further includes an air storage and distribution pipe, which is installed inside the storage box. The air inlet of the air storage and distribution pipe is connected to another air outlet of the distribution valve. Multiple upper conveying pipes are provided on the outside of the storage box, and the multiple air outlets of the air storage and distribution pipe are respectively connected to the multiple upper conveying pipes.

[0013] Preferably, the outer surface of the abrasion-resistant airbag has two folded abrasion bodies integrally formed. The top of the folded abrasion bodies is fixedly connected to the bottom of the extension baffle. When the abrasion-resistant airbag is inflated, the folded abrasion bodies will expand together, thereby pushing the extension baffle to move upward outside the upper baffle to form an expanded blocking surface.

[0014] Preferably, the outer walls of the upper baffle, the extended baffle, and the arc-shaped baffle are all integrally formed with a central filter screen. The central filter screen is used to form a water filtration effect while forming a barrier surface, so as to avoid excessive resistance when the upper baffle, the extended baffle, and the arc-shaped baffle move inside the water body.

[0015] Preferably, an inclined jet pipe is inserted inside the upper conveying pipe, and multiple inclined jet holes are integrally formed on the outside of the inclined jet pipe. The air outlet of the inclined jet holes faces the outer wall of the central filter. When the gas ejected from the inclined jet holes faces the outer wall of the central filter, it can spray out the dirt accumulated and stuck outside the central filter, forming a self-cleaning effect. A scraper is fixedly connected to the bottom side of the extension baffle near the upper baffle. The scraper is used to scrape the central filter located outside the upper baffle when the extension baffle moves upward.

[0016] Preferably, the movable structure includes two guide rods, which are fixedly connected to the inside of the cleaning tank. A guide seat is slidably connected to the outside of the guide rods, and a connecting plate is fixedly connected to the bottom of the guide seat. The bottom of the connecting plate is fixedly connected to the top of the cleaning seat.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] In this invention, the shovel plate can scoop up a large amount of dirt and impurities from the bottom wall of the cleaning pool when moving at the bottom of the water body, and push them into the collection tank. The dirt and impurities can be transported to the outside through a mud pump connected to the outside of the collection tank, achieving a rapid cleaning effect. At the same time, when the shovel plate moves in the opposite direction, its tip will not touch the bottom of the cleaning pool, thus preventing the dirt from being pushed in the opposite direction. In addition, the upper baffle can form a blocking surface to reduce the phenomenon of dirt being carried to other places by the water flow when the shovel plate moves, thus achieving rapid collection and cleaning of dirt and impurities.

[0019] In this invention, when the shovel is scooping up dirt and impurities, the inflated folding pusher body pushes the extended baffle upwards, allowing the T-shaped slider to slide smoothly along the sliding groove. This effectively increases and widens the blocking range of the upper baffle, improving the dirt-blocking ability and preventing a large number of impurities from overturning the baffle and scattering to various parts of the cleaning pool. This ensures that all impurities and dirt can be collected in a specific direction. When the equipment resets, the wear-resistant airbag and the folding pusher body simultaneously depressurize and contract, and the extended baffle automatically falls back to reset, without hindering the normal reciprocating operation of the equipment. Attached Figure Description

[0020] Figure 1 This is one of the three-dimensional structural schematic diagrams of an embodiment of the present invention;

[0021] Figure 2This is a second three-dimensional structural schematic diagram of an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the extended state structure of the extended baffle in an embodiment of the present invention;

[0023] Figure 4 This is a partial cross-sectional view of the storage box in an embodiment of the present invention;

[0024] Figure 5 This is a side view of the central filter structure in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the T-shaped slider in an embodiment of the present invention;

[0026] Figure 7 This is an embodiment of the present invention. Figure 2 A magnified structural diagram of area A in the diagram.

[0027] In the diagram: 100, cleaning tank; 101, collection trough; 102, cleaning seat; 103, shovel; 104, aeration conveying pipe; 105, storage box; 106, upper conveying pipe; 107, diversion valve; 108, air storage diversion pipe; 200, upper baffle; 300, extension baffle; 301, central filter; 400, arc-shaped baffle; 500, pushing wear-resistant airbag; 501, electric control valve; 600, folding pushing airbag body; 601, T-shaped slider; 700, scraper; 800, inclined jet pipe; 801, inclined jet hole; 900, guide rod; 901, guide seat; 902, connecting plate. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1, such as Figures 1-7 As shown, this application discloses a wastewater treatment aeration device with self-cleaning and maintenance functions, including a cleaning tank 100. The inner bottom wall of the cleaning tank 100 is inclined, and a collection trough 101 is integrally formed on the inner bottom wall of the cleaning tank 100. A cleaning seat 102 is connected to the inside of the cleaning tank 100 via a movable structure. A shovel plate 103 is hinged to the outside of the cleaning seat 102, and the tip of the shovel plate 103 fits against the inner bottom wall of the cleaning tank 100. An upper blocking structure is hinged to the outside of the cleaning seat 102, and the upper blocking structure and the shovel plate 103 form a "V" shape. An aeration pushing structure is installed on the cleaning seat 102.

[0030] The upper barrier structure is used in conjunction with the shovel 103 to push dirt and impurities located on the bottom wall of the cleaning pool 100 into the collection tank 101. An extension structure is installed on the outside of the upper barrier structure.

[0031] The extension structure is used to expand the barrier surface of the upper barrier structure, reducing the amount of dirt flowing through the upper barrier structure and drifting into other locations in the cleaning pool 100.

[0032] Specifically, during equipment operation, wastewater remains continuously within the cleaning tank 100. Because the bottom wall of the cleaning tank 100 is designed to slope, dirt and impurities at the bottom will initially slide and accumulate towards the integrally formed collection trough 101 under gravity. Then, the cleaning seat 102, mounted on a movable structure, will reciprocate along the tank body via the movable structure. As the cleaning seat 102 moves towards the collection trough 101, the shovel plate 103, hinged to the outside of the cleaning seat 102, will press its tip tightly against the sloped bottom of the tank, pushing the scattered dirt and impurities attached to the bottom wall forward. Simultaneously, the upper blocking structure, also hinged to the cleaning seat 102, forms a V-shaped enclosure with the shovel plate 103. This not only prevents the shoveled impurities from flowing back but also works in conjunction with the shovel plate 103 to push all kinds of dirt and impurities completely into the collection trough 101 step by step.

[0033] Furthermore, an extension structure is provided on the outside of the upper barrier structure. The extension structure will unfold simultaneously and expand the overall barrier area of ​​the upper barrier structure. In this way, the stirred-up dirt can be effectively prevented from drifting through the gaps of the upper baffle 200 to other areas of the cleaning pool 100, ensuring that impurities can be collected in a specific direction.

[0034] Furthermore, during the cleaning process, the aeration propulsion structure installed on the cleaning seat 102 will also work simultaneously. On the one hand, the airflow generated by aeration will assist in disturbing the water and helping the impurities move. On the other hand, it can also perform aeration purification treatment on the sewage. When the cleaning seat 102 completes a pushing action and begins to move in the reverse direction, the shovel plate 103 and the upper blocking structure will flexibly adjust their posture according to the direction of travel to reduce the resistance between the bottom of the pool and the water body, and prevent the already collected impurities from being dispersed again.

[0035] like Figures 1-7As shown, the aeration propulsion structure includes a storage box 105, which is fixedly connected to the cleaning seat 102. An aeration delivery pipe 104 is connected to the storage box 105. One end of the aeration delivery pipe 104 away from the storage box 105 is connected to the aerator. A diversion valve 107 is installed inside the storage box 105. One of the air outlets of the diversion valve 107 is connected to an electric control valve 501. The air outlet of the electric control valve 501 is connected to a push wear-resistant airbag 500. One side of the outer wall of the push wear-resistant airbag 500 is fixedly connected to the outer wall of the storage box 105, and the other side of the outer wall of the push wear-resistant airbag 500 is fixedly connected to the outside of the upper baffle 200. The push wear-resistant airbag 500 is used to expand when the gas in the aerator is transmitted to the inside of the push wear-resistant airbag 500. The expanded push wear-resistant airbag 500 pushes the upper baffle 200 and the shovel plate 103 to fit against the inner bottom wall of the cleaning tank 100.

[0036] Specifically, during the aeration process, the aerator located outside the cleaning tank 100 is started. After starting, the aerator continuously produces airflow. This airflow is first transported to the storage box 105 on the cleaning seat 102 via the aeration delivery pipe 104. Then, the airflow entering the storage box 105 is distributed by the internal diversion valve 107. When it is necessary to make the shovel plate 103 fit tightly against the bottom wall of the cleaning tank 100 for cleaning operations, the corresponding electronic control valve 501 will open simultaneously. Then, the airflow divided by the diversion valve 107 can enter the push wear-resistant airbag 500 through the pipeline. As the airflow is continuously filled, the push wear-resistant airbag 500 will slowly expand and deform. Because one side of the airbag is in contact with the storage box 102, 5. The outer wall is connected to the upper baffle 200 on the other side. Therefore, during the expansion of the airbag, it will push the upper baffle 200 outward. The upper baffle 200 and the shovel 103 work together to drive the shovel 103 to press firmly against the inner bottom wall of the cleaning pool 100. This ensures that the shovel 103 will not lift up or detach from the bottom of the pool when it moves to scrape dirt. When the cleaning operation is completed or the cleaning seat 102 needs to be reversed and reset, the electric control valve 501 will close and release the gas inside the airbag, which will push the wear-resistant airbag 500 to contract. The pushing force on the upper baffle 200 will also disappear. The shovel 103 and the upper baffle 200 can then flexibly adjust their posture to reduce the resistance encountered during the movement of the equipment.

[0037] like Figures 1-2 As shown, the movable structure includes two guide rods 900. The guide rods 900 are fixedly connected to the inside of the cleaning tank 100. A guide seat 901 is slidably connected to the outside of the guide rods 900. A connecting plate 902 is fixedly connected to the bottom of the guide seat 901. The bottom of the connecting plate 902 is fixedly connected to the top of the cleaning seat 102.

[0038] Specifically, two parallel guide rods 900 are horizontally fixed inside the cleaning pool 100. These two guide rods 900 serve as the sliding track for the overall moving structure. The guide seat 901 is then fitted onto the outside of the guide rods 900 and can slide freely along the rods. In the overall drive structure, a drive motor and transmission chain can be used as the power components of the entire structure, or a drive motor plus a lead screw can be used for driving. When using a transmission chain, after the drive motor runs, it will pull the guide seat 901 along the guide rods 900 to perform a reciprocating translational movement via the transmission chain. The lower part of the guide seat 901... The connecting plate 902 is firmly fixed in place, and the bottom of the connecting plate 902 is connected to the top of the cleaning seat 102. Therefore, when the guide seat 901 slides back and forth on the guide rod 900, it will drive the cleaning seat 102 and all components such as the shovel 103, the upper baffle 200, and the aeration propulsion structure mounted on it to move smoothly together with the help of the connecting plate 902. At the same time, the two guide rods 900 can also play a role in limiting and straightening, which can effectively prevent the cleaning seat 102 from shifting or tilting during the movement, so that the entire cleaning operation always runs stably along the preset route and ensures that the cleaning operation is carried out in an orderly manner.

[0039] like Figures 1-6 As shown, the upper barrier structure includes an upper baffle 200, which is hinged to the outside of the cleaning seat 102 via the same hinge axis as the shovel 103. The upper baffle 200 and the shovel 103 form a V-shape. The V-shaped shovel 103 and the upper baffle 200 can push the dirt and impurities located on the bottom wall of the cleaning pool 100 into the collection tank 101, preventing the dirt and impurities from being scooped up by the shovel 103 and then drifting to other positions by the water flow, thus preventing them from being concentrated and pushed into the collection tank 101.

[0040] Specifically, during use, when the cleaning seat 102 moves towards the collection tank 101 driven by the moving structure, since the upper baffle 200 and the shovel 103 share the same hinge shaft and are installed on the outside of the cleaning seat 102, they will naturally form a stable V-shaped combination structure. As the cleaning seat 102 moves forward, the shovel 103 will first scoop up the dirt and impurities attached to and accumulated on the bottom wall of the cleaning tank 100, while the upper baffle 200 will follow closely behind to form a shielding barrier. This not only firmly blocks the scooped-up impurities, but also prevents the flowing water in the tank from carrying the impurities and spreading them around. In turn, it works together with the shovel 103 to continuously and steadily push all the dirt and impurities forward into the collection tank 101, effectively preventing the impurities from being scattered by the water flow and drifting to other areas of the cleaning tank 100, so that all the dirt can be collected in a unified manner.

[0041] like Figures 4-6As shown, the aeration propulsion structure also includes an air storage and diversion pipe 108, which is installed inside the storage box 105. The air inlet of the air storage and diversion pipe 108 is connected to another air outlet of the diversion valve 107. Multiple upper conveying pipes 106 are provided on the outside of the storage box 105, and the multiple air outlets of the air storage and diversion pipe 108 are respectively connected to the multiple upper conveying pipes 106.

[0042] Specifically, during use, the airflow generated by the aerator enters the storage box 105 through the aeration delivery pipe 104. It then passes through the internal diversion valve 107 for multi-path airflow distribution. One path of airflow supplies the electronic control valve 501 and pushes the wear-resistant airbag 500, while the other path flows from the outlet of the diversion valve 107 into the air storage diversion pipe 108 installed inside the storage box 105. The air storage diversion pipe 108 can temporarily store a portion of the airflow and then evenly distribute it. The distributed airflow... The gas is then connected to multiple upper conveying pipes 106 on the outside of the storage box 105. Finally, gas is continuously released outward through these upper conveying pipes 106. This not only creates a uniform aeration effect in the cleaning tank 100, oxygenates and purifies the sewage, and agitates the water, but also works with the front shovel 103 to disturb the sludge at the bottom of the tank, making it easier for impurities to be pushed to the collection tank 101. Moreover, the multi-pipe air outlet design allows for a wider aeration range and more balanced air output, effectively improving the overall sewage treatment and auxiliary cleaning effect.

[0043] The technical solutions described in the above-mentioned embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, by setting the shovel plate 103, a large amount of dirt and impurities can be shoveled up from the bottom wall of the cleaning pool 100 when moving at the bottom of the water body, and concentrated and pushed into the inside of the collection tank 101. The dirt and impurities can be concentrated and transported to the outside by the mud pump connected to the outside of the collection tank 101, achieving the effect of rapid cleaning. At the same time, when the shovel plate 103 moves in the opposite direction, its tip will not stick to the bottom of the cleaning pool 100, and will not cause the dirt to be pushed in the opposite direction. In addition, the upper baffle 200 can form a blocking surface to reduce the phenomenon of dirt being carried to other places by the water flow when the shovel plate 103 moves, thereby achieving rapid collection and cleaning of dirt and impurities.

[0044] Example 2: Considering that during use, there are many impurities at the bottom of the cleaning tank 100, and the shovel 103 will continuously accumulate impurities as it moves, and that when there are too many impurities and dirt, they may overflow the upper baffle 200, this application proposes the following technical solution to address the above-mentioned technical problems:

[0045] like Figures 3-5As shown, the expansion structure includes a sliding groove opened on the outside of the upper baffle 200. A T-shaped slider 601 is slidably connected inside the sliding groove. An extension baffle 300 is fixedly connected to the side of the T-shaped slider 601 away from the sliding groove. The bottom of the extension baffle 300 is connected to the aeration pushing structure. The extension baffle 300 is used to move upward to expand the blocking area of ​​the upper baffle 200 when the shovel plate 103 scoops up dirt.

[0046] Specifically, when the equipment begins cleaning and the shovel 103 starts scraping away dirt and impurities from the bottom wall of the cleaning tank 100, the aeration pushing structure simultaneously generates force and drives the extension baffle 300 upward. Because the extension baffle 300 and the T-shaped slider 601 are fixed together, and the T-shaped slider 601 can slide smoothly along the sliding groove on the upper baffle 200, the extension baffle 300 will slide upward along the sliding groove with the slider, thereby raising the overall position. This further expands the original coverage area of ​​the upper baffle 200. The blocking area not only blocks dirt and impurities that splash and drift with the water flow after being scooped up, but also fills the gaps on both sides and above the upper baffle 200, preventing impurities from slipping into other areas of the cleaning tank 100. It works in conjunction with the shovel 103 and the upper baffle 200 to collect impurities in a directional manner. When the cleaning process ends and the cleaning seat 102 begins to reset, the extended baffle 300 will drive the T-shaped slider 601 to fall back to the initial position along the sliding groove under the action of the aeration pushing structure, so that the entire extension structure returns to its original state without affecting the normal operation of the equipment.

[0047] like Figure 3 As shown, the outer part of the wear-resistant airbag 500 has two folded push bladders 600 integrally formed. The top of the folded push bladders 600 is fixedly connected to the bottom of the extension baffle 300. When the wear-resistant airbag 500 is inflated, the folded push bladders 600 will expand together, thereby pushing the extension baffle 300 to move upward outside the upper baffle 200 to form an expansion of the blocking surface.

[0048] Specifically, during use, when the gas delivered by the aerator enters the wear-resistant airbag 500 and inflates it, the two integrally formed folded push bladders 600 also simultaneously inflate and expand. Since the tops of these two folded push bladders 600 are fixedly connected to the bottom of the upper baffle 200, and the extension baffle 300 is installed on the outside of the upper baffle 200, as the folded push bladders 600 gradually extend and bulge, an upward pushing force is generated, which in turn drives the extension baffle 300 to slide smoothly upward along the upper baffle 200, thereby expanding the blocking area and better preventing the dirt and impurities scooped up from scattering everywhere. After the equipment completes the cleaning process and the gas inside the wear-resistant airbag 500 is discharged, the folded push bladders 600 will also retract and fold, no longer exerting a pushing force on the extension baffle 300. The extension baffle 300 will then fall back to its initial position without interfering with the subsequent reset movement and normal operation of the equipment.

[0049] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: Compared with Embodiment 1, in this embodiment, when the shovel plate 103 shovels and transports dirt and impurities, the inflated and expanded folding push bladder 600 pushes the extension baffle 300 upward, so that the T-shaped slider 601 slides smoothly upward along the sliding groove, effectively increasing and widening the blocking range of the upper baffle 200, improving the dirt blocking ability, preventing a large number of impurities from overturning the baffle and scattering to various places in the cleaning pool 100, and ensuring that all impurities and dirt can be collected in a directional manner. When the equipment is reset, the push wear-resistant airbag 500 and the folding push bladder 600 are depressurized and contracted synchronously, and the extension baffle 300 automatically falls back to reset, without hindering the normal reciprocating operation of the equipment.

[0050] Example 3: Considering that during use, impurities continuously accumulate as the shovel plate 103 moves, and when excessive impurities accumulate, the water flow may still be carried by the extended baffle 300 and the upper baffle 200, potentially causing some impurities and dirt to drift past the extended baffle 300. Furthermore, because the extended baffle 300 increases the blocking area, it also increases the corresponding moving resistance. With increased area and increased moving resistance, the amount of water being pushed increases, and the water flow fluctuations become greater. Greater water flow fluctuations increase the likelihood of impurities and dirt drifting freely. To address these technical problems, this application proposes the following technical solution:

[0051] like Figures 1-6As shown, the extended structure also includes an arc-shaped catch plate 400, which is inserted into the top of the extension baffle 300. The arc-shaped catch plate 400 is arc-shaped and is used to form a snap-fit ​​net above the water flow when a lot of impurities are left between the upper baffle 200 and the shovel plate 103. This prevents impurities from drifting over the extension baffle 300 and flowing to other parts of the water flow. The outer walls of the upper baffle 200, the extension baffle 300, and the arc-shaped catch plate 400 are all integrally formed with a central filter screen 301. The central filter screen 301 is used to form a water filtration effect while forming a barrier surface, so as to prevent the upper baffle 200, the extension baffle 300, and the arc-shaped catch plate 400 from having excessive resistance when moving inside the water.

[0052] Specifically, when the equipment is performing cleaning operations normally, the shovel 103 continuously moves forward, accumulating a large amount of dirt and impurities. Simultaneously, the upper baffle 200 and the extended baffle 300, moving through the water, also cause water flow, easily leading to impurities being carried over the baffles and scattered in all directions. The arc-shaped catch plate 400, inserted into the top of the extended baffle 300, simultaneously functions, forming a net-like enclosure above the baffle with its arc structure. This effectively catches impurities carried by the water flow and about to pass over the extended baffle 300, further preventing the outflow of dirt from above. The central filter 301, which is integrally formed on the outer wall of the upper baffle 200, the extended baffle 300, and the arc-shaped baffle 400, also works simultaneously. This hollow water filtration structure allows water to pass smoothly through the baffles without generating excessive resistance due to the increased obstruction area. This effectively reduces the agitation of the water when the equipment moves and reduces violent fluctuations in the water flow. It also helps to intercept solid dirt and impurities with the help of the filter, achieving water permeability without blocking dirt. The three work together to completely solve the problem of impurities drifting away with the water flow and greatly optimize the equipment's operating status, making the cleaning operation more stable and smooth.

[0053] like Figures 4-7 As shown, an inclined jet pipe 800 is inserted into the inside of the upper conveying pipe 106. Multiple inclined jet holes 801 are integrally formed on the outside of the inclined jet pipe 800. The air outlet of the inclined jet holes 801 faces the outer wall of the central filter screen 301. When the gas ejected from the inclined jet holes 801 faces the outer wall of the central filter screen 301, it can spray out the dirt accumulated and stuck on the outside of the central filter screen 301, forming a self-cleaning effect. A scraper 700 is fixedly connected to the side of the extension baffle 300 near the bottom of the upper baffle 200. The scraper 700 is used to scrape the central filter screen 301 located outside the upper baffle 200 when the extension baffle 300 moves upward.

[0054] Specifically, during the cleaning operation of the entire equipment, the gas delivered from the gas storage and distribution pipe 108 enters the upper delivery pipe 106. Then, the airflow flows along the inclined jet pipe 800 inserted in the pipe, and then is ejected outward through multiple inclined jet holes 801 distributed on the outer wall of the inclined jet pipe 800. Since the outlet of these jet holes is specifically facing the outer wall of the central filter screen 301, the high-pressure airflow can directly impact the dirt and impurities attached to and stuck on the surface of the central filter screen 301 and in the gaps. The impact force of the airflow blows these dirt off, thereby achieving pneumatic self-cleaning of the central filter screen 301 and preventing the filter screen from being blocked, which would affect water permeability and normal use. Meanwhile, as the extension baffle 300 slides upward along the upper baffle 200 and expands the blocking area under the drive of the folding push bladder 600, the scraper 700 fixed on one side of the bottom of the extension baffle 300 will move synchronously. The scraper 700 will closely adhere to the surface of the central filter screen 301 on the outer side of the upper baffle 200 and scrape it to remove the stubborn dirt stuck to the filter screen surface one by one. In this way, the air jet cleaning of the inclined air jet hole 801 and the mechanical scraping of the scraper 700 work together to form a dual cleaning mode, which ensures that the central filter screen 301 always remains transparent. It will not increase the resistance of equipment movement due to the accumulation of dirt, and can continue to play the role of filtering water and blocking dirt, allowing the equipment to operate stably for a long time.

[0055] The technical solutions described in the above embodiments of this application have at least the following technical effects or advantages: Compared with Embodiment 2, in this embodiment, by setting the arc-shaped baffle 400, a baffle structure can be formed at the top of the extended baffle 300, effectively intercepting impurities that are swept up by the water flow and are about to overturn the baffle, reducing the dispersion and overflow of impurities. At the same time, by combining it with the central filter screen 301 set on the outer wall of the upper baffle 200, the extended baffle 300, and the arc-shaped baffle 400, the overall dirt-blocking capacity can be maintained, and water permeability and drainage can be achieved, greatly reducing the resistance generated by the movement of the large-area baffle in the water and weakening water disturbance. The movement and water flow fluctuations further reduce the phenomenon of impurities drifting with the water flow. In addition, the air jet structure composed of the upper conveying pipe 106, the inclined air jet pipe 800, and the inclined air jet hole 801, together with the scraper 700 at the bottom of the extended baffle 300, forms a dual self-cleaning system of pneumatic blowing and mechanical scraping. This system can promptly clean the dirt attached to and blocked on the central filter screen 301, ensuring the long-term permeability of the filter screen and preventing the filter screen from becoming clogged again and increasing the operating resistance. The whole system realizes the self-cleaning of components, reduces the frequency of manual maintenance, and ensures that the equipment can operate continuously for a long time with high efficiency and low resistance.

[0056] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wastewater treatment aeration device with self-cleaning and maintenance functions, comprising a cleaning tank (100), characterized in that: The cleaning tank (100) has an inclined inner bottom wall, and a collection trough (101) is integrally formed on the inner bottom wall. A cleaning seat (102) is connected to the inside of the cleaning tank (100) via a movable structure. A shovel plate (103) is hinged to the outside of the cleaning seat (102), and the tip of the shovel plate (103) fits against the inner bottom wall of the cleaning tank (100). An upper blocking structure is hinged to the outside of the cleaning seat (102), and the upper blocking structure and the shovel plate (103) form a "V" shape. An aeration pushing structure is installed on the cleaning seat (102). The upper barrier structure is used in conjunction with the shovel (103) to push the dirt and impurities located on the bottom wall of the cleaning pool (100) into the collection tank (101). An extension structure is installed on the outside of the upper barrier structure. The extension structure is used to extend the barrier surface of the upper barrier structure, reducing the amount of dirt flowing through the upper barrier structure and drifting into other locations of the cleaning pool (100); The upper barrier structure includes an upper baffle (200), which is hinged to the outside of the cleaning seat (102) via the same hinge axis as the shovel (103). The upper baffle (200) and the shovel (103) are V-shaped. The V-shaped shovel (103) and the upper baffle (200) can push the dirt and impurities located on the bottom wall of the cleaning pool (100) into the collection tank (101), preventing the dirt and impurities from being scooped up by the shovel (103) and drifting to other positions by the water flow, thus preventing them from being concentrated and pushed into the collection tank (101). The expansion structure includes a sliding groove opened outside the upper baffle (200), a T-shaped slider (601) is slidably connected inside the sliding groove, an extension baffle (300) is fixedly connected to the side of the T-shaped slider (601) away from the sliding groove, the bottom of the extension baffle (300) is connected to the aeration pushing structure, and the extension baffle (300) is used to move upward to expand the blocking area of ​​the upper baffle (200) when the shovel plate (103) shovels up the dirt; The aeration propulsion structure includes a storage box (105), which is fixedly connected to the cleaning seat (102). An aeration delivery pipe (104) is connected to the storage box (105). One end of the aeration delivery pipe (104) away from the storage box (105) is connected to the aerator. A diversion valve (107) is installed inside the storage box (105). One of the air outlets of the diversion valve (107) is connected to an electric control valve (501). The air outlet of the electric control valve (501) is connected to... A wear-resistant airbag (500) is provided. One side of the outer wall of the wear-resistant airbag (500) is fixedly connected to the outer wall of the storage box (105), and the other side of the outer wall of the wear-resistant airbag (500) is fixedly connected to the outside of the upper baffle (200). When the gas in the aerator is transmitted to the inside of the wear-resistant airbag (500), it expands. The expanded wear-resistant airbag (500) pushes the upper baffle (200) and the shovel (103) to fit against the inner bottom wall of the cleaning tank (100). The outer surface of the abrasion-resistant airbag (500) has two integrally formed folded abrasion bags (600). The top of the folded abrasion bags (600) is fixedly connected to the bottom of the extension baffle (300). When the abrasion-resistant airbag (500) is inflated, the folded abrasion bags (600) will expand together, thereby pushing the extension baffle (300) to move upward outside the upper baffle (200) to form an expansion of the blocking surface. The movable structure includes two guide rods (900), which are fixedly connected to the inside of the cleaning tank (100). A guide seat (901) is slidably connected to the outside of the guide rods (900). A connecting plate (902) is fixedly connected to the bottom of the guide seat (901), and the bottom of the connecting plate (902) is fixedly connected to the top of the cleaning seat (102).

2. The wastewater treatment aeration device with self-cleaning operation and maintenance function according to claim 1, characterized in that: The extended structure also includes an arc-shaped pocket (400), which is inserted into the top of the extended baffle (300). The arc-shaped pocket (400) is arc-shaped and can form a snap-fit ​​net effect above, preventing impurities from drifting past the extended baffle (300) and flowing to other parts of the water flow.

3. A wastewater treatment aeration device with self-cleaning operation and maintenance function according to claim 2, characterized in that: The aeration propulsion structure also includes an air storage and diversion pipe (108), which is installed inside the storage box (105). The air inlet of the air storage and diversion pipe (108) is connected to another air outlet of the diversion valve (107). Multiple upper conveying pipes (106) are provided on the outside of the storage box (105), and multiple air outlets of the air storage and diversion pipe (108) are respectively connected to multiple upper conveying pipes (106).

4. A wastewater treatment aeration device with self-cleaning operation and maintenance function according to claim 3, characterized in that: The outer walls of the upper baffle (200), the extension baffle (300), and the arc-shaped baffle (400) are all integrally formed with a central filter screen (301). The central filter screen (301) is used to form a water filtration effect while forming a barrier surface, so as to avoid excessive resistance when the upper baffle (200), the extension baffle (300), and the arc-shaped baffle (400) move inside the water.

5. A wastewater treatment aeration device with self-cleaning operation and maintenance function according to claim 4, characterized in that: An inclined jet pipe (800) is inserted inside the upper conveying pipe (106). Multiple inclined jet holes (801) are integrally formed on the outside of the inclined jet pipe (800). The outlet of the inclined jet hole (801) faces the outer wall of the central filter (301). When the gas ejected from the inclined jet hole (801) faces the outer wall of the central filter (301), it can spray out the dirt that is stuck to the outside of the central filter (301) to form a self-cleaning effect. A scraper (700) is fixedly connected to the side of the extension baffle (300) near the bottom of the upper baffle (200). The scraper (700) is used to scrape the central filter (301) located outside the upper baffle (200) when the extension baffle (300) moves upward.

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