An inclined baffle flushing and sludge collection device for aquaculture

Abstract

This utility model relates to the field of aquaculture technology, and in particular to an inclined baffle-type flushing and sewage collection device for aquaculture. The inclined baffle-type flushing and sewage collection device for aquaculture includes a base plate in contact with the bottom of the aquaculture pond. An adjustable upper plate is movably installed at one end of the base plate. Side plates cover both sides of the base plate and the upper plate, completely covering the gap between them. A filter screen covers the tail ends of the base plate and the upper plate. A material box is placed on the base plate. The adjustable upper plate at one end of the base plate allows for angle adjustment to meet the pollutant guidance requirements according to the aquaculture scenario. The side plates completely cover the gap created by angle adjustment, preventing sewage leakage and backflow of pollutants during flushing. The filter screen covers the tail ends of both plates to intercept aquaculture organisms and prevent them from entering the collection device. The material box on the base plate collects the pollutants intercepted by the filter screen, facilitating subsequent cleaning and transportation, thus achieving efficient collection, interception, and disposal of pollutants from the aquaculture pond.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to an inclined baffle flushing and sludge collection device for aquaculture. Background Technology

[0002] As an important part of modern agriculture, aquaculture has seen rapid promotion of large-scale and intensive farming models. The efficient removal of pollutants such as uneaten feed, excrement, and metabolic waste from aquaculture ponds has become crucial for ensuring stable water quality, reducing disease incidence, and improving the quality and profitability of aquaculture products. Currently, the industry mainly uses methods for waste collection in aquaculture ponds, including manual cleaning, bottom drainage pipes, mechanical scraping equipment, and central waste collection systems. Among these, central waste collection systems are widely used in small and medium-sized freshwater aquaculture ponds and in localized waste collection scenarios within factory-style recirculating aquaculture systems due to their ease of operation, minimal disturbance to aquatic life, and the elimination of the need for complex underground pipelines.

[0003] However, existing waste collection devices still have many technical shortcomings in practical applications, making it difficult to meet the needs of efficient, flexible, and low-maintenance modern aquaculture. Specific problems are as follows: The widely used central waste collection system in current aquaculture relies on a pre-set, fixed slope (typically 1.5%-3%) at the bottom of the pond to guide uneaten feed, feces, and other pollutants to settle naturally to the drain in the center of the pond. The pollutants are then discharged via a suction pump or siphon. However, this technology faces the following limitations in practical application: 1. Low pollutant aggregation efficiency, resulting in blind spots in cleaning. Centralized waste collection relies entirely on "natural settling + slope guidance," offering extremely weak active guidance capabilities for pollutants. On one hand, light pollutants such as uneaten feed and floating feces remain suspended in the water for extended periods, making it difficult for them to quickly settle to the bottom with the water flow. Some pollutants may even spread to non-central areas with the circulating water flow of the aquaculture pond. On the other hand, due to pond shape limitations (such as square or rectangular ponds), the water flow makes sharp turns at right angles and collides with the pond walls, easily creating low-velocity areas and "dead water zones," causing solid waste to accumulate in these areas and making discharge difficult. The significant differences in distance between the four corners and edges of the pond bottom and the central drain outlet mean that slope guidance cannot cover all areas, easily creating cleaning blind spots—for example, in a 10m × 10m square aquaculture pond, the distance from the corner to the central drain outlet can be over 7m. Pollutants need to travel a considerable distance to converge, resulting in low actual waste collection efficiency. Long-term deposition of remaining pollutants can breed harmful bacteria, exacerbating water quality deterioration.

[0004] 2. Poor scene adaptability and inflexible adjustment. The core of centralized sewage collection relies on a "fixed slope pond bottom". Once the aquaculture pond is built, its sewage collection path and angle are completely fixed and cannot be adjusted according to changes in the aquaculture scenario. If the aquaculture species is changed (such as from raising adult fish to raising shrimp larvae), the shrimp larvae have a small range of activity and the pollutants are more dispersed. The fixed slope cannot meet the needs of collecting dispersed pollutants. For the renovation of old ponds, centralized sewage collection requires the pond bottom to be re-poured to form a fixed slope. The renovation cost is high and the construction period is long, making it difficult to meet the flexible adjustment needs of small and medium-sized aquaculture farmers.

[0005] 3. The risk of biosecurity in aquaculture is high, and it can easily lead to losses due to accidental aspiration. Centralized sewage collection systems typically have their discharge outlets located in the center of the pond bottom, and the suction pumps need to maintain high suction power to ensure effective sewage removal. This design can lead to two problems: first, juvenile and weak aquaculture organisms (such as shrimp larvae and fish larvae with a body length of <3cm) are easily sucked into the discharge outlet, resulting in direct losses; second, the fast water flow around the discharge outlet can create localized "whirlpool zones," interfering with the normal habitat of aquaculture organisms, especially significantly impacting the growth of benthic organisms (such as crabs and shellfish).

[0006] 4. High energy consumption and maintenance costs, and poor operational stability. To facilitate the central collection of pollutants, the central collection system requires continuous operation of high-power suction pumps and push pumps, resulting in high long-term operating costs. Meanwhile, the discharge outlets are easily clogged by uneaten feed and feces, necessitating periodic shutdowns for disassembly and cleaning. This makes cleaning and maintenance difficult, affecting not only the continuity of aquaculture but also causing fluctuations in water quality due to shutdowns, increasing the risk of disease transmission.

[0007] In view of the above-mentioned shortcomings, the designer has actively researched and innovated in order to create an inclined baffle flushing and sewage collection device for aquaculture, making it more valuable for industrial use. Utility Model Content

[0008] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an inclined baffle flushing and sewage collection device for aquaculture.

[0009] This utility model discloses an inclined baffle flushing and sludge collection device for aquaculture, including a bottom plate that contacts the bottom of the aquaculture pond, an adjustable upper plate that is movably installed at one end of the bottom plate, side plates that completely cover the gap between the bottom plate and the upper plate, a filter screen that covers the tail ends of the bottom plate and the upper plate, and a material box that is placed on the bottom plate.

[0010] An adjustable upper plate is mounted on one end of the base plate via a movable connection. By adjusting the tilt angle of the upper plate, it can adapt to the pollutant guidance requirements of different aquaculture scenarios. To ensure the sealing of both sides of the device and the integrity of the sewage collection area, both sides of the base plate and the upper plate are covered with side plates. The side plates can completely cover the gap that may be caused by the angle adjustment between the base plate and the upper plate, effectively preventing sewage from seeping from the side during flushing and causing pollutant backflow. In addition, to intercept pollutants that move with the water flow during flushing and prevent them from re-entering the aquaculture pond, the tail ends of the base plate and the upper plate are covered with a filter screen. The material box for collecting pollutants after being intercepted by the filter screen is placed directly on the base plate, which facilitates the subsequent centralized cleaning and transfer of pollutants. Through the coordinated cooperation of various components, the overall structure achieves efficient collection, interception and collection of pollutants in the aquaculture pond.

[0011] Furthermore, a base support is movably installed on one or both sides of the base plate via bearings, and a support rod is movably installed inside the base support via bearings. The upper end of the support rod has a threaded section. A threaded sleeve is movably installed on one or both sides of the upper plate via bearings. The threaded section of the support rod is screwed into the threaded sleeve, and the rotation of the support rod drives the upper plate to deflect at an angle.

[0012] The device consists of a base support mounted on one or both sides of the base plate using bearings, and a support rod with a threaded section at the top mounted on the base plate using bearings. At the same time, a threaded sleeve is mounted on one or both sides of the upper plate using bearings. The threaded section of the support rod is screwed into the threaded sleeve, forming an adjustable support structure. When the support rod is rotated, its threaded section will move relative to the threaded sleeve, thereby causing the upper plate to deflect at an angle around the movable connection end with the base plate, thus achieving flexible adjustment of the tilt angle of the upper plate.

[0013] Furthermore, there are outwardly expanding mounting slots on both sides of the base plate, and the bottom of the side plate is inserted into the mounting slot.

[0014] To achieve stable assembly of the side panels and the base plate, the device is designed with outwardly expanding mounting grooves on both sides of the base plate. During installation, the bottom of the side panel is inserted into the mounting groove. The mounting groove limits the bottom of the side panel, which can quickly complete the positioning and installation of the side panel and enhance the stability of the connection between the side panel and the base plate. At the same time, the side panel covers the gap between the base plate and the top plate, further improving the sealing of both sides of the device and preventing sewage from leaking from the joint between the side panel and the base plate when flushing and collecting sewage.

[0015] Furthermore, magnetic strips are embedded in the side walls of the bottom and top plates, and the side plates are made of magnetic metal.

[0016] To further optimize the connection, sealing, and compatibility between the side plates and the bottom and top plates, magnetic strips are embedded inside the side walls of both the bottom and top plates. The side plates are made of magnetic metal. During installation, the magnetic attraction between the magnetic strips and the magnetic metal side plates ensures a tight fit between the side plates and the side walls of the bottom and top plates. This not only allows for quick assembly and disassembly of the side plates but also automatically adapts to changes in the gap as the angle of the top plate adjusts, ensuring effective coverage of the gap between the bottom and top plates. This prevents sewage leakage from the sides during flushing and collection, improving the overall sealing reliability of the device.

[0017] Furthermore, the surface of the base plate is provided with multiple guide grooves, the cross-section of which is narrow at the top and wide at the bottom, and the bottom of the material box has guide blocks that cooperate with the guide grooves.

[0018] To ensure precise positioning and stable placement of the material box on the base plate, the device features multiple guide grooves on the surface of the base plate. These guide grooves are designed with a cross-section that is narrower at the top and wider at the bottom. Additionally, guide blocks that mate with the guide grooves are placed at the bottom of the material box. When installing the material box, simply insert the bottom guide blocks into the corresponding guide grooves on the base plate. The interaction between the guide grooves and guide blocks restricts the lateral and longitudinal displacement of the material box, preventing it from shifting or tipping over due to water flow impact during flushing and waste collection. The narrow-at-the-top, wide-at-the-bottom cross-section of the guide grooves further enhances the stability of the guide blocks, preventing the material box from accidentally detaching from the grooves. It also facilitates the subsequent quick removal of the material box for contaminant cleaning.

[0019] Furthermore, magnetic strips are embedded in the outer end faces of the base plate and the top plate, and the filter screen is made of magnetic metal. The filter screen is flexible and can be attached to the outer end faces of the base plate and the top plate.

[0020] The device embeds magnetic strips on the outer end faces of both the base plate and the top plate. The filter screen is made of magnetic metal material and is designed to be flexible. During installation, the magnetic attraction between the magnetic strips and the magnetic metal filter screen allows the filter screen to fit tightly against the outer end faces of the base plate and the top plate. This enables quick assembly and disassembly of the filter screen, facilitating subsequent cleaning or replacement. The flexible filter screen can also be adjusted and deformed according to the angle of the top plate, always maintaining a close fit with the outer end faces of the base plate and the top plate, ensuring effective interception of pollutants and preventing pollutants from leaking through gaps.

[0021] Furthermore, a cover plate is movably installed at one end of the material box via a hinge, and a lifting ring is provided on the cover plate. There is a hook on the inside of the upper plate that cooperates with the lifting ring.

[0022] The device features a hinged cover at one end of the material bin, which can be flipped around the hinge to open and close the bin. A lifting ring is also provided on the cover, and a hook corresponding to the lifting ring is located on the inner side of the upper plate. When the cover needs to be opened for cleaning or maintenance, it can be flipped and hooked onto the hook via the lifting ring. This not only secures the open position of the cover, preventing it from swinging and affecting operation, but also prevents the cover from obstructing the collection area or interfering with other components after being flipped, thus improving the ease of use of the device.

[0023] Furthermore, the outer side of the side plate is provided with multiple arc-shaped water guide plates, the length of which gradually increases.

[0024] The device features multiple arc-shaped water guide plates on the outer side of the side plate, with the length of these plates gradually increasing in a specific order. The arc structure guides the external water flow in an orderly manner, preventing turbulent eddies on the outer side of the side plate. The gradually increasing length design also allows the water flow to be guided in a gradient from the area near the device to the area away from the device, more efficiently collecting the dispersed pollutants in the aquaculture pond into the collection area formed by the bottom and top plates. This reduces the spread of pollutants due to turbulent water flow and improves the overall collection efficiency.

[0025] Furthermore, the radius of curvature of the water guide plate gradually increases.

[0026] In addition to the progressively increasing length of the guide plates, the radius of curvature of the guide plates in this device also progressively increases in the same order. This design of increasing radius of curvature further optimizes the guiding effect of flushing water flow. From the inner guide plate near the side plate to the outer guide plate away from the side plate, as the radius of curvature gradually increases, the guiding range of the water flow expands accordingly. This allows for smoother convergence of dispersed water flow and pollutants from different areas of the aquaculture pond to the collection area formed by the bottom plate and the top plate. It avoids water flow stagnation or turbulence in the outer area due to the uniform curvature of the guide plates, further improving the efficiency and stability of flushing and collection.

[0027] Furthermore, the cover plate is transparent, and a vision probe is embedded inside the upper plate. The vision probe is connected to the PC via an electrical signal.

[0028] The device's cover is made of transparent material, allowing staff to directly observe the collection of pollutants inside the material bin. A vision probe is embedded on the inner side of the upper plate, and this probe connects to an external PC via electrical signals. The transparent cover does not obstruct the vision probe's field of view, enabling it to clearly capture images of the material bin's fullness and accumulation status. Real-time monitoring data is transmitted to the PC via electrical signals, allowing staff to remotely view the monitoring information without frequent on-site inspections. This allows for timely monitoring of the pollutant collection status, enabling staff to schedule material bin cleaning or adjust device operating parameters, thus improving the convenience and timeliness of operation and maintenance.

[0029] By means of the above solution, this utility model has at least the following advantages: This invention addresses the technical shortcomings of existing aquaculture waste collection devices, such as low pollutant collection efficiency, turbulent water flow, poor adaptability to various scenarios, high risk of aquatic organisms accidentally inhaling pollutants, high energy consumption, and lagging operation and maintenance. Through collaborative and innovative design of its core components, it significantly improves the waste collection efficiency, operational flexibility, and ease of maintenance of the device. Specific beneficial effects are as follows: 1. Active guidance + flushing coordination This invention breaks through the logic of "passive settling" in central sewage collection. It actively guides pollutants through an adjustable upper plate. The angle of the upper plate can be increased or decreased depending on the distribution of pollutants (e.g., if they are concentrated at the edge of the pool, the angle of the upper plate can be increased, and if they are dispersed, the angle can be decreased). The pollutants are guided to the filter end. At the same time, it works with the existing flushing system of the aquaculture pond (no additional equipment is required) to accelerate the aggregation of pollutants by the impact of water flow, thus preventing the spread of light pollutants.

[0030] 2. Zero-modification adaptation for multiple scenarios This invention eliminates the need for a fixed slope bottom; the bottom plate can be directly attached to the bottom of an existing aquaculture pond. The angle of the upper plate can be adjusted using adjustable components (such as bolts) to adapt to different aquaculture scenarios. When raising adult fish, increase the tilt angle of the upper plate (20-30°) to accelerate the accumulation of a large amount of pollutants; when raising shrimp larvae, decrease the angle (5-10°) to facilitate the slow guidance of pollutant dispersion. When renovating an old pool, there is no need to pour a new pool bottom. You only need to fix one or more devices to the edge of the pool bottom or a designated area. The installation is convenient, the renovation cost is low, and it is easy to maintain.

[0031] 3. Filter interception + low flow rate design to avoid the risk of biological aspiration. This invention features a dedicated filter screen at the bottom and top ends of the plate (the mesh size can be customized according to the size of the cultured organisms, such as 0.5mm mesh for shrimp larvae ponds and 2mm mesh for adult fish ponds), which can accurately intercept pollutants and prevent cultured organisms from entering the waste collection area. In addition, the water flow guidance of the device relies on the "gentle slope guidance" of the inclined baffle, rather than the high suction and strong pumping of the central waste collection, so as not to form vortices or strong suction areas, fundamentally avoiding problems such as accidental aspiration of larvae and disturbance of the habitat.

[0032] 4. Low energy consumption + easy maintenance, low operating costs This invention can directly utilize the existing water exchange and flushing system of the aquaculture pond (such as the flushing function attached to the aerator), without the need to install an additional high-power sludge pump; at the same time, pollutants are intercepted by the filter screen and fall directly into the material box on the bottom plate. During cleaning, only the material box needs to be pulled out and emptied, without the need to stop the machine for disassembly, making maintenance convenient; the aquaculture pond can be equipped with multiple devices as needed, and the devices are easy to replace, avoiding the risk of water quality fluctuations caused by machine shutdown.

[0033] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the utility model Figure 1 A structural diagram showing the structure after removing the filter screen and side panels; Figure 3 This is the utility model Figure 2 A magnified view of a portion of the image; Figure 4 This is a schematic diagram of the structure of the material box and the upper plate of this utility model. Figure 5 This is the utility model Figure 4 Enlarged view of a portion; In the diagram: 1. Base plate, 2. Top plate, 3. Side plate, 4. Filter screen, 5. Material box, 6. Base support, 7. Support rod, 8. Screw sleeve, 9. Placement groove, 10. Guide groove, 11. Guide block, 12. Cover plate, 13. Lifting ring, 14. Hook, 15. Water guide plate. Detailed Implementation

[0036] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0037] The following is in conjunction with the appendix Figure 1-5 This document provides a detailed description of a preferred embodiment of an inclined baffle-type flushing and sludge collection device for aquaculture. This embodiment is only used to explain this utility model and is not intended to limit the scope of protection of this utility model.

[0038] I. Overview of the Structure of the Implementation Example The inclined baffle-type flushing and sludge collection device for aquaculture described in this embodiment is suitable for small and medium-sized freshwater aquaculture ponds (pond depth 1.2-2.0m) and local sludge collection areas in factory-style recirculating aquaculture systems. Its core structure achieves efficient sludge collection through the coordinated action of a base plate 1, an adjustable upper plate 2, a sealed side plate 3, an intercepting filter 4, a pollutant collection material box 5, and auxiliary adjustment components. The specific structure is detailed below with reference to the attached drawings: II. Component Structure and Assembly Details (a) Assembly and angle adjustment structure of base plate 1 and upper plate 2 Base plate 1 structure: Base plate 1 is made of 304 stainless steel with a thickness of 5-8mm. It is rectangular in shape (length 1.5-2.0m, width 0.8-1.0m). Its bottom is in contact with the bottom of the aquaculture pond through anti-slip rubber pads to prevent the device from shifting when flushing water. A hinge seat (unmarked, compatible with the hinge shaft of the upper plate 2) is provided at the end of base plate 1 near the sewage discharge end of the aquaculture pond for movable connection with the upper plate 2.

[0039] Upper plate 2) structure: The upper plate 2) is also made of 304 stainless steel, with a thickness of 4-6mm, a length of 1.5-2.0m (the same as the base plate 1), and a width of 0.6-0.8m. One end of the upper plate 2) is hinged to the hinge seat of the base plate 1) through a hinge shaft, and can be rotated around the hinge shaft to achieve angle adjustment (adjustment range 15°-45°).

[0040] Angle adjustment components (base 6, support rod 7, screw sleeve 8): As attached Figure 2 , 3 As shown, two base supports 6 are symmetrically arranged on both sides of the width direction of the base plate 1. The base support 6 is a U-shaped stainless steel bracket, and its bottom is movably connected to the base plate 1 through a deep groove ball bearing, which can rotate slightly around the bearing axis. The support rod 7 is movably installed in the U-shaped groove of the base 6 through a deep groove ball bearing of the same type. The support rod 7 is a stainless steel rod with a diameter of 12-16mm. The upper 20-30cm section is machined with an M10-M12 external thread section, and the lower end is welded with a hexagonal adjustment knob (for easy tool rotation). On both sides of the upper plate 2 in the width direction, corresponding to the position of the base support 6, there are threaded sleeves 8 welded. The threaded sleeves 8 are stainless steel sleeves with internal threads (matching the external threads of the support rod 7) machined on the inner wall, and the threaded sleeves 8 are movably connected to the side wall of the upper plate 2 through bearings. During assembly, the threaded section of the support rod 7 is screwed into the threaded sleeve 8 to form a triangular support structure of "base 6-support rod 7-threaded sleeve 8". When the adjustment knob of the support rod 7 is turned clockwise, the threaded section is screwed into the threaded sleeve 8, pushing the upper plate 2 to rotate upward around the hinge axis, increasing the tilt angle. When turned counterclockwise, the threaded section is screwed out from the threaded sleeve 8, and the upper plate 2 rotates downward under its own gravity, decreasing the tilt angle, thus achieving stepless adjustment within the range of 0°-45°.

[0041] (ii) Sealing and assembly structure of side plate 3 Installation slot 9 design: as shown in the attached document Figure 2 As shown, on both sides of the base plate 1 in the width direction, there are outwardly expanding mounting grooves 9 along the length direction. The mounting grooves 9 are "U" shaped grooves (groove width 15-20mm, groove depth 10-15mm). Rubber sealing gaskets are pasted on the inner wall of the grooves to enhance the sealing between the side plate 3 and the base plate 1.

[0042] Side plate 3 and magnetic strip: Side plate 3 is made of magnetic iron alloy (thickness 3-5mm), and its height is adapted to the overall height of the upper plate 2 in the maximum tilt state (0.5-0.8m); on the inner side of the two side walls of the bottom plate 1 and the inner side of the two side walls of the upper plate 2, strip-shaped neodymium iron boron magnetic strips (thickness 5mm, width 10mm) are embedded along the length direction, and the surface of the magnetic strip is flush with the wall surface; During assembly, the bottom of the side plate 3 is vertically inserted into the mounting slot 9. At this time, the inner side of the side plate 3 is attracted and adhered to the magnetic strips on the side walls of the bottom plate 1 and the upper plate 2. This not only achieves quick positioning (without bolt fixing), but also automatically adapts to the gap as the upper plate 2 is tilted. When the upper plate 2 is flipped, the side plate 3 remains tightly attached to the side walls of the bottom plate 1 and the upper plate 2 under the magnetic attraction, completely covering the gap between them and preventing sewage from leaking from the side when flushing.

[0043] (III) Positioning of material box 5 and structure of cover plate 12 Guide groove 10 and guide block 11 mate as shown in the attached diagram. Figure 2 , 4As shown, on the upper surface of the base plate 1, 3-5 guide grooves 10 are parallel to each other along the length direction. The cross-section of the guide groove 10 is a trapezoid with a narrow top and a wide bottom (20mm wide at the top, 30mm wide at the bottom, and 15mm deep). The material box 5 is a rectangular structure with an open top, made of food-grade PP plastic, with a length of 0.8-1.0m, a width of 0.6-0.8m, and a height of 0.4-0.5m. Guide blocks 11 corresponding to the guide grooves 10 are welded to its bottom. The cross-section of the guide block 11 is a trapezoid that fits the guide groove 10. When installing the material box 5, align the guide block 11 with the guide groove 10 and push it in along the groove. The trapezoidal structure can limit the vertical and horizontal displacement of the material box 5, preventing it from shifting or tipping over due to water impact. When cleaning, simply pull the material box 5 outward along the guide groove 10 to remove it. The operation is convenient.

[0044] Cover plate 12 mates with lifting ring 13 and hook 14 as shown in the attached diagram. Figure 4 , 5 As shown, a cover plate 12 is movably installed on the end of the material box 5 near the upper plate 2 via a hinge (model 304 stainless steel hinge). The cover plate 12 is made of transparent acrylic material (5mm thick) to facilitate observation of the internal contaminant filling status. Two stainless steel lifting rings 13 (8mm in diameter) are welded to the end of the cover plate 12 away from the hinge. On the inner side wall of the upper plate 2, corresponding to the position of the lifting rings 13, an "L"-shaped stainless steel hook 14 (20mm in height) is welded. When it is necessary to clean the material box 5, flip the cover plate 12 upwards until it fits against the inside of the upper plate 2, and hang the lifting ring 13 into the hook 14 to fix the open state of the cover plate 12 and prevent it from shaking and blocking the sewage collection area or interfering with the water flow. After cleaning, remove the lifting ring 13 and put down the cover plate 12 to close the material box 5 and prevent the spread of pollutants and odors or the accidental entry of aquatic organisms.

[0045] (iv) Adaptation and interception structure of filter 4 As attached Figure 1 As shown, the "tail end" of the bottom plate 1 and the top plate 2 away from the hinge connection end (i.e., the end closest to the center of the breeding pond, where a strip of neodymium iron boron magnetic strip (with the same specifications as the magnetic strip of the side plate 3) is embedded along the width direction on its end face); the filter screen 4 is made of flexible magnetic iron alloy mesh (mesh aperture 0.3-0.5mm), with a width consistent with the width of the bottom plate 1 and the top plate 2, and a height that matches the overall height of the tail ends of both. During assembly, the filter screen 4 is tightly attached to the tail end surfaces of the base plate 1 and the upper plate 2 by magnetic attraction. The flexible material can be flexibly deformed according to the angle of the upper plate 2, and always covers the tail end without gaps, ensuring that pollutants such as residual bait and feces that move with the water flow during flushing are completely intercepted and prevented from leaking. When the filter screen 4 is clogged, it can be removed and cleaned by manual peeling without disassembling other parts, which is highly efficient in maintenance.

[0046] (v) Water flow guiding structure of water guide plate 15 As attached Figure 1 As shown, 4-6 arc-shaped water guide plates 15 are evenly welded along the height direction on the outer side wall of the two side plates 3. The water guide plates 15 are made of 304 stainless steel (thickness 2-3mm), and the arc direction is towards the center of the breeding pond (i.e. the direction of water flow). The length of the water guide plate 15 gradually increases from the lower end near the bottom plate 1 to the upper end near the top plate 2 (for example, the length of the lower water guide plate is 100mm, the length of the upper water guide plate is 200mm, and the length difference between adjacent water guide plates is 20-30mm), and the radius of curvature also gradually increases accordingly (the radius of curvature of the lower water guide plate is 50mm, the radius of curvature of the upper water guide plate is 150mm, and the radius difference between adjacent water guide plates is 20-30mm). This design allows the water jets from external flushing devices (such as high-pressure water guns and circulating water nozzles) to form a "gradient orderly water flow" after being guided by the water guide plate 15. The inner water guide plate 15, which is close to the side plate 3, guides the water flow that is close to the side plate 3 to quickly converge towards the sewage collection area, while the outer water guide plate 15, which is far away from the side plate 3, expands the guiding range and gradually guides the pollutants dispersed at the bottom of the pool towards the filter screen 4, thus avoiding the formation of eddies and the dispersion of pollutants by the turbulent water flow.

[0047] (vi) Monitoring structure of the visual probe An industrial-grade vision probe (model optional Hikvision DS-2CD3T46WD-I3) is embedded in the middle of the inner wall of the upper plate 2, with the probe lens facing the inside of the material box 5; the transparent acrylic material of the cover plate 12 allows light to pass through completely without obstructing the probe's field of view; the vision probe establishes an electrical signal connection with the external PC through a waterproof cable (running along the inner wall of the upper plate 2 and passing through the side wall of the aquaculture tank); During operation, the vision probe captures the filling level of pollutants in the material box 5 in real time (such as whether it has reached 80% of the box volume) and the state of pollutant accumulation (such as whether there is local blockage), and transmits the image data to the PC. Staff can view it remotely through the PC without having to go down into the pool to check frequently. When pollutants are detected to be overflowing, they can be cleaned up in time to prevent pollutants from flowing back into the aquaculture pond.

[0048] III. Overall Assembly Process Place the bottom plate 1 in the pre-designed sludge collection area of ​​the aquaculture pond and fix its position with the bottom anti-slip rubber pad; The hinge shaft of the upper plate 2 is hinged to the hinge seat of the bottom plate 1 to complete the movable connection between the two. Install base supports 6 on both sides of the base plate 1, insert support rods 7 into base supports 6 and screw them into screw sleeves 8 on the upper plate 2, and assemble the angle adjustment assembly; Insert the bottom of the side plate 3 into the mounting groove 9 of the base plate 1, and attach it to the base plate 1 and the top plate 2 using magnetic attraction; The filter screen 4 is magnetically attached to the ends of the bottom plate 1 and the top plate 2; Align the guide block 11 of the material box 5 with the guide groove 10 of the base plate 1 and push it in to complete the positioning; Install cover plate 12 and embed the vision probe inside the upper plate 2, and connect it to the PC. Rotate the support rod 7 to adjust the upper plate 2 to the preset angle (e.g., adjust to 30° for shrimp and crab farming ponds, and adjust to 20° for fish farming ponds) to complete the overall assembly.

[0049] IV. Working Principle Water flow guidance and pollutant collection: When the external flushing equipment is activated, the water flow is sprayed towards the side plate 3 and guided by the outer arc-shaped water guide plate 15 (with length and arc gradient design) to form an orderly water flow, which gathers the pollutants such as uneaten feed and feces scattered at the bottom of the breeding pond into the pollution collection area composed of the bottom plate 1 and the upper plate 2. Angle adaptation and contaminant guidance: Adjust the angle of the upper plate 2 to 35° when the size of the contaminant particles is large, and adjust it to 25° when the size of the feces particles is small. Rotate the support rod 7 to adjust the tilt angle of the upper plate 2 so that the contaminant can slide smoothly along the inclined surface of the upper plate 2 to the tail end. Pollutant interception and collection: When the water flow carries pollutants to the tail end, the filter screen 4 intercepts the pollutants (the water flow passes through the filter screen and flows back to the aquaculture pond). The intercepted pollutants fall into the material box 5 below under the action of gravity. Real-time monitoring and maintenance: The vision probe transmits the status of contaminants in the material box 5 to the PC in real time. When the contaminants are detected to be full or the filter screen 4 is clogged, the staff stops flushing, hangs the lifting ring 13 of the cover plate 12 into the hook 14, pulls out the material box 5 to clean the contaminants, and removes the filter screen 4 for rinsing. After completion, the box can be reset and used again.

[0050] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An inclined baffle-type flushing and sludge collection device for aquaculture, comprising a bottom plate (1) in contact with the bottom of the aquaculture pond, characterized in that: An adjustable upper plate (2) is movably installed at one end of the base plate (1). Side plates (3) cover the two sides of the base plate (1) and the upper plate (2). The side plates (3) can completely cover the gap between the base plate (1) and the upper plate (2). A filter screen (4) covers the tail end of the base plate (1) and the upper plate (2). A material box (5) is placed on the base plate (1).

2. The inclined baffle flushing and sludge collection device for aquaculture according to claim 1, characterized in that: A base support (6) is movably installed on one or both sides of the base plate (1) via bearings. A support rod (7) is movably installed inside the base support (6) via bearings. The upper end of the support rod (7) has a threaded section. A threaded sleeve (8) is movably installed on one or both sides of the upper plate (2) via bearings. The threaded section of the support rod (7) is screwed into the threaded sleeve (8). The rotation of the support rod (7) drives the upper plate (2) to deflect at an angle.

3. The inclined baffle flushing and sludge collection device for aquaculture according to claim 2, characterized in that: There are outwardly expanding mounting slots (9) on both sides of the base plate (1), and the bottom of the side plate (3) is inserted into the mounting slots (9).

4. The inclined baffle flushing and sludge collection device for aquaculture according to any one of claims 1-3, characterized in that: Magnetic strips are embedded in the side walls of the base plate (1) and the top plate (2), and the side plate (3) is made of magnetic metal.

5. The inclined baffle flushing and sludge collection device for aquaculture according to claim 4, characterized in that: The bottom plate (1) has multiple guide grooves (10) on its surface. The cross-section of the guide groove (10) is narrow at the top and wide at the bottom. The bottom of the material box (5) has a guide block (11) that cooperates with the guide groove (10).

6. The inclined baffle flushing and sludge collection device for aquaculture according to claim 5, characterized in that: Magnetic strips are embedded in the outer end faces of the base plate (1) and the upper plate (2). The filter screen (4) is made of magnetic metal and is flexible, so that it can be attached to the outer end faces of the base plate (1) and the upper plate (2).

7. The inclined baffle flushing and sludge collection device for aquaculture according to claim 6, characterized in that: One end of the material box (5) is fitted with a cover plate (12) via a hinge. A lifting ring (13) is provided on the cover plate (12). The inner side of the upper plate (2) has a hook (14) that cooperates with the lifting ring (13).

8. The inclined baffle flushing and sludge collection device for aquaculture according to claim 1, characterized in that: The outer side of the side plate (3) is provided with multiple arc-shaped water guide plates (15), and the length of the water guide plates (15) gradually increases.

9. The inclined baffle flushing and sludge collection device for aquaculture according to claim 8, characterized in that: The radius of curvature of the water guide plate (15) gradually increases.

10. The inclined baffle flushing and sludge collection device for aquaculture according to claim 7, characterized in that: The cover plate (12) is transparent, and a vision probe is embedded in the inner side of the upper plate (2). The vision probe is connected to the PC via an electrical signal.

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