Efficient separation type ecological plankton and zooplankton collecting net

Abstract

The application relates to the field of ecological environment monitoring production, in particular to a high-efficiency separation type ecological plankton and zooplankton collecting net which comprises a frame, a first layer net for intercepting large sundries is arranged at the middle portion of the frame, and a lifting hook is arranged at the top of the first layer net. The application is provided with a rotary layered component, that is, a second layer net at the bottom is used for intercepting phytoplankton, and a third layer net on the same axis in the inner side of the second layer net is used for intercepting zooplankton. A rotating force is generated under the action of water flow through a propeller, so that the Jiaolong push plate in the third layer net is in a conical structure and rotates on the inner side of the third layer net, one end of the corrugated plate on the outer side of the Jiaolong push plate is inclined along the inner side of the third layer net, and when rotating, the Jiaolong push plate can push the plankton to move and disperse to avoid local accumulation and blockage, can intercept the zooplankton accurately by means of the component force, and the staggered stirring effect caused by the fact that the wave trough positions of the three corrugated plates are not on the same horizontal plane makes the filtration more comprehensive and uniform.

Description

Technical Field

[0001] This invention relates to the field of ecological environment monitoring and production, specifically to a highly efficient, separate ecological planktonic plant and animal collection net. Background Technology

[0002] In ecological and environmental monitoring, the monitoring of aquatic ecological conditions is extremely crucial. For various water bodies such as rivers, lakes, and oceans, phytoplankton are important indicator organisms. The types and quantities of phytoplankton are a direct reflection of the nutrient status of the water body. The large-scale proliferation of phytoplankton such as cyanobacteria is often a significant signal of eutrophication. By monitoring phytoplankton, it is possible to effectively determine whether the water quality is polluted. Therefore, it is necessary to use a highly efficient separation-type ecological phytoplankton collection net to collect phytoplankton samples, and then carry out species identification and quantity statistics to accurately determine whether the water body is in a eutrophic state, and thus effectively assess the degree of water pollution.

[0003] Chinese Patent Application No. 202123077305.7 discloses an integrated plankton collection net, including a steel ring, a preliminary filter, a second filter, a second collection box, a first filter, and a first collection box. This technical solution can simultaneously capture phytoplankton and zooplankton without the need for multiple sampling personnel or repeated operations. It is a simple, time-saving, and labor-saving integrated plankton collection net.

[0004] However, in actual use, when plankton and water impact the conical structure at the top of the first filter, the conical structure deforms due to the impact force of the water flow and the reaction force of the objects. Especially during the retrieval process, if the retrieval speed is fast or the water flow is turbulent, the impact force will cause the apex of the conical structure to indent in the opposite direction, thus forming a reverse conical structure. Because the collection point of the reverse conical structure and the inlet point of the inclined second collection box are not on the same horizontal direction, it is difficult for zooplankton to enter the second collection box, preventing them from effectively passing through the second filter and falling into the second collection box. This leads to… The number of zooplankton collected was less than expected, affecting the collection efficiency of the collection net. Furthermore, the mixing of zooplankton inside the inverted cone-shaped structure could affect the phytoplankton count. Secondly, when water and zooplankton pass through the second filter and enter the first filter, the zooplankton collide and rub against the surface of the second filter due to its cone-shaped structure. At the same time, the characteristics of the zooplankton themselves (such as having sticky substances on their surface) and some impurities that may be present in the water can increase the adhesion of zooplankton to the surface of the second filter, thereby clogging the mesh and reducing the collection efficiency of phytoplankton.

[0005] Therefore, it is necessary to propose an efficient, separate ecological phytoplankton collection net to solve the above-mentioned technical problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a highly efficient separate ecological phytoplankton collection net. It solves the technical problems of zooplankton being obstructed from entering the box due to the deformation of the conical structure of the first filter net into a reverse conical structure caused by rapid water flow, the mixing of plankton and the resulting impact on the phytoplankton quantity count, and the fact that zooplankton easily adheres to the surface of the conical second filter net, clogging the mesh and reducing the collection efficiency of phytoplankton.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0008] The technical solution adopted by this invention to solve its technical problem is: a high-efficiency separation-type ecological phytoplankton collection net, including a frame, a first layer of net for intercepting large debris in the middle of the frame, a hook at the top of the first layer of net, a second layer of net for intercepting phytoplankton at the bottom of the frame, the second layer of net having a cone-shaped structure, a third layer of net with the same axis at the lower part of the second layer of net, the third layer of net being used to intercept zooplankton, and a collection component below the second and third layers of net for collecting the filtered phytoplankton in layers;

[0009] A rotating stratification component, located at the top of the third layer of mesh, is used to quickly separate and filter planktonic plants and animals.

[0010] The high-pressure jetting assembly, located at the top of the third layer of netting, is used to quickly remove plankton and debris from the inner surface of the third layer of netting.

[0011] Preferably, the rotating layering assembly includes:

[0012] A fixing ring is installed in the lower middle part of the second layer of mesh;

[0013] A rotating ring, which is rotatably connected to the inner ring of a fixed ring;

[0014] The fitting frame is fixedly installed on the inner ring of the rotating ring and has a herringbone structure;

[0015] The rotating rod is fixedly installed in the lower middle part of the mating frame;

[0016] The jiaolong push plate is fixedly installed on the outside of the rotating rod and has a cone-shaped structure. The cone-shaped structure of the jiaolong push plate is on the inner side of the third layer of mesh.

[0017] The propeller is positioned below the collecting assembly and is fixedly connected to the lower part of the rotating rod;

[0018] A filter plate is installed below the second and third mesh layers, and the lower end of the rotating rod rotates through the middle of the filter plate.

[0019] Preferably, the outer side of the jiaolong push plate is equipped with three corrugated plates arranged in a ring array, and one end of the corrugated plates is inclined along the inner side of the third layer of mesh.

[0020] Preferably, the troughs of the three corrugated plates are not on the same horizontal plane.

[0021] Preferably, the high-pressure injection assembly includes:

[0022] A miniature water pump, installed inside the propeller;

[0023] The water inlet pipe has one end inserted into the outlet end of the micro water pump. The longitudinal section of the water inlet pipe is conical, and a water inlet hole is opened inside it.

[0024] The drive tube is installed inside the rotating rod. The lower end of the drive tube is inserted into the outlet side of the micro water pump. The interior of the mounting frame is provided with a water inlet groove that communicates with the drive tube. The interior of the rotating ring is provided with an arc-shaped groove that corresponds to the water inlet groove.

[0025] Three high-pressure nozzles are provided, which are fixedly installed below the rotating ring and connected to the arc-shaped groove inside the rotating rod;

[0026] The nozzles of the high-pressure nozzles are arranged at an angle along the inner side of the third layer of mesh.

[0027] Preferably, three scraper strips are installed on the outer side of the propeller and between it and the spaced propellers. The scraper strips are made of a certain elastic material, and scraper holes are opened on the three scraper strips. The scraper strips are inclined along the inner side of the third layer of mesh.

[0028] Preferably, the scraper holes of the three scraper blades are located at different positions on the same water surface.

[0029] Preferably, the collection component includes:

[0030] An outer ring collector is installed below the filter plate, and a first collection groove is provided on the inner side of the outer ring collector.

[0031] An inner ring collector is installed inside the outer ring collector, and a fixed sleeve that is rotatably connected to the rotating rod is installed in the middle of the top of the inner ring collector. A second collection groove is provided on the top of the inner ring collector and on the outer edge of the fixed sleeve.

[0032] There are two drain pipes, one of which is installed at the bottom of the outer ring collector and connected to the first collection trough, and the other is fixedly installed on one side of the inner ring collector and connected to the second collection trough.

[0033] The present invention has achieved the following beneficial effects:

[0034] (1) This invention sets up a rotating layered component, namely, the second layer of net at the bottom is used to intercept phytoplankton, while the third layer of net located on the same axis inside the second layer of net is used to intercept zooplankton. The propeller generates rotational force under the action of water flow, causing the dragon pusher plate to form a cone-shaped structure and rotate on the inner side of the third layer of net. One end of the corrugated plate on its outer side is inclined along the inner side of the third layer of net. When rotating, it can both push the phytoplankton to disperse and move to avoid local accumulation and blockage, and accurately intercept zooplankton with the help of the component force. Moreover, the staggered stirring effect produced by the three corrugated plates not being on the same horizontal plane makes the filtration more comprehensive and uniform. Under the action of gravity, the phytoplankton enters the collection component from the inside of the filter plate, realizing layered collection, which can solve the problems of reduced zooplankton collection efficiency and the impact of phytoplankton mixing on the phytoplankton count.

[0035] (2) By setting up a high-pressure jet assembly, the present invention can use the power generated by the water flow to start a micro water pump during the collection process, and transmit external water through a specially structured inlet pipe and drive pipe to the high-pressure nozzle to thoroughly clean the inner surface of the third layer net, remove the sticky substances of the plankton itself, the adhesion of plankton or other debris caused by impurities in the water, and because the nozzle rotates with the rotating ring, the spray angle changes continuously, avoiding dead corners in cleaning, maintaining the good filtration performance of the third layer net, and improving the collection efficiency. The scraper on the outside of the propeller rotates under the drive of the propeller, which can deform according to the water flow and the contact between the net surface and adapt to the water flow environment to fit the net surface, and can also generate oblique scraping force through the inclined surface to clean plankton and debris. At the same time, the scraper holes can allow the water flow to generate multi-angle water flow to scour the net surface in all directions, further improving the cleaning efficiency of plankton and debris, preventing the mesh from clogging, and thus improving the collection efficiency of the entire collection net for plankton and plants. Attached Figure Description

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

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

[0038] Figure 2 This is a longitudinal cross-sectional view of the second and third mesh layers of the present invention;

[0039] Figure 3 for Figure 2 A magnified view of part A in the image;

[0040] Figure 4 for Figure 2 A magnified view of part B in the image;

[0041] Figure 5 This is a schematic diagram of the jiaolong pusher plate of the present invention.

[0042] Numbered in the diagram: 1. Frame; 11. First layer net; 12. Hook; 13. Second layer net; 14. Third layer net; 15. Collection assembly; 151. Outer ring collection component; 152. Inner ring collection component; 153. Drain pipe; 2. Rotating layering assembly; 21. Fixed ring; 22. Rotating ring; 23. Matching frame; 24. Rotating rod; 25. Drone push plate; 26. Propeller; 27. Filter plate; 28. Corrugated plate; 211. High-pressure jet assembly; 212. Miniature water pump; 213. Inlet pipe; 214. Drive pipe; 215. High-pressure nozzle; 216. Scraper. Detailed Implementation

[0043] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0044] like Figures 1-2 As shown, a high-efficiency separation-type ecological phytoplankton collection net includes a frame 1. A first-layer net 11 for intercepting large debris is set in the middle of the frame 1. A hook 12 is set at the top of the first-layer net 11. In use, the collection net is placed in the water through the hook 12. During the collection process, the water carrying plankton first comes into contact with the first-layer net 11 in the middle of the frame 1. The first-layer net 11 can intercept large debris such as branches and large plastic fragments, preventing them from entering the subsequent filter layer and causing blockage or interference. A second-layer net 13 for intercepting phytoplankton is set at the bottom of the frame 1. The second-layer net 13 has a cone-shaped structure. A third-layer net 14 with the same axis is set in the lower part of the second-layer net 13. The third-layer net 14 is used to intercept zooplankton. A collection component 15 is set below the second-layer net 13 and the third-layer net 14 for collecting the filtered phytoplankton in layers.

[0045] Next, the water flow and plankton reach the second layer of net 13, which has a cone-shaped structure. The zooplankton can continue to flow downwards with the water flow, pass through the second layer of net 13, and reach the third layer of net 14. The mesh size and structural characteristics of the third layer of net 14 enable it to intercept the zooplankton. The second layer of net 13, located on the same axis outside the third layer of net 14, intercepts the phytoplankton. Under the action of gravity, they fall into the corresponding collection components 15 below, realizing the stratified collection of phytoplankton and greatly improving the targeting and accuracy of sample collection.

[0046] like Figures 2-5As shown, the rotating stratification assembly 2 is located at the top of the third layer net 14 and is used to quickly separate and filter phytoplankton. The rotating stratification assembly 2 includes a fixed ring 21, which is installed in the lower middle part of the second layer net 13; a rotating ring 22, which is rotatably connected to the inner ring of the fixed ring 21; a matching frame 23, which is fixedly installed in the inner ring of the rotating ring 22 and has a herringbone structure; a rotating rod 24, which is fixedly installed in the lower middle part of the matching frame 23; and a auger pusher plate 25, which is fixedly installed on the outside of the rotating rod 24 and has a cone shape. The structure includes a cone-shaped structure of the auger pusher plate 25 on the inner side of the third layer net 14; a propeller 26, which is located below the collection component 15 and fixedly connected to the lower part of the rotating rod 24, uses the rotational force generated by the water flow to drive the entire rotating layering component 2 to work, without the need for an additional power source, which is energy-saving, environmentally friendly and can continue to play a role in the collection process; and a filter plate 27, which is installed below the second layer net 13 and the third layer net 14, with the lower end of the rotating rod 24 rotating through the middle of the filter plate 27.

[0047] It should be noted that when using this collection net, first connect the external tools to the hook 12, then place the collection net in the water and move it. After the frame 1 is submerged, water and plankton pass through each layer of the structure in sequence. When plankton enters the third layer of the net 14, the propeller 26 generates rotational force under the action of the water flow. This rotational force is transmitted to the auger pusher 25 through the rotating rod 24, causing the auger pusher 25 to rotate on the inner side of the third layer of the net 14. The conical structure of the auger pusher 25 and its rotational motion can effectively control the plankton entering the third layer of the net 14. The plankton is stirred and propelled, causing them to separate rapidly within the third layer net 14. During this process, the first layer net 11, located in the middle of the frame 1, intercepts large debris. The water flow and plankton then reach the cone-shaped third layer net 14 and the second layer net 13, which are on the same axis. Phytoplankton are intercepted by the second layer net 13, while zooplankton pass through the third layer net 14 and are intercepted. When the collection net is scooped out of the water, under the action of gravity, the plankton enter the collection component 15 from inside the filter plate 27, achieving stratified collection.

[0048] It is worth noting that, since zooplankton are generally larger than phytoplankton, the filter holes through which zooplankton pass through the filter plate 27 are larger than those through which phytoplankton pass through the filter plate 27. This allows the zooplankton to pass smoothly through the filter plate 27 and enter the collection assembly 15.

[0049] The rotating layering component 2 greatly improves the efficiency and accuracy of plankton separation. The rotation of the auger pusher 25 within the third layer net 14 effectively prevents zooplankton from gathering, sticking together, or clogging the mesh, allowing zooplankton to be intercepted and collected more quickly and accurately. It also ensures the effective interception of phytoplankton on the second layer net 13, improving the targeting of sample collection and facilitating subsequent research and analysis of different types of plankton.

[0050] like Figure 2 As shown, three corrugated plates 28 arranged in a ring array are installed on the outer side of the jiaolong push plate 25, with one end of the corrugated plate 28 inclined along the inner side of the third layer mesh 14.

[0051] When the propeller 26 drives the rotating rod 24 to rotate under the action of water flow, which in turn causes the auger pusher plate 25 to rotate, the three corrugated plates 28 arranged in a ring array on the outside of the auger pusher plate 25 also rotate. Since one end of the corrugated plate 28 is inclined along the inner side of the third layer net 14, during the rotation, the corrugated plate 28 will have a spiral-like propulsion effect on the plankton. On the one hand, it pushes the plankton along the inner side of the third layer net 14, prompting the plankton to be better dispersed and moved within the net, avoiding local accumulation and blockage. On the other hand, the inclined corrugated plate 28 will cause the plankton to be pushed and subjected to a component force towards the mesh of the third layer net 14, which helps to more accurately intercept smaller plankton on the third layer net 14, rather than letting them flow randomly within the net with the water flow. The plankton can be more evenly distributed on the third layer net 14, reducing the situation of mesh blockage or some plankton being missed due to excessive local plankton, and improving the accuracy and comprehensiveness of the third layer net 14 in intercepting plankton.

[0052] The troughs of the three corrugated plates 28 are not on the same horizontal plane.

[0053] Since the troughs of the three corrugated plates 28 are not on the same horizontal plane, they will produce an alternating agitation effect during rotation. This alternating agitation effect can effectively agitate and push the plankton at different heights inside the third layer net 14, making the filtration process of plankton inside the third layer net 14 more comprehensive and uniform.

[0054] like Figures 3-5As shown, the high-pressure jet assembly 211 is located on top of the third layer net 14 and is used to quickly clean plankton and debris from the inner surface of the third layer net 14. The high-pressure jet assembly 211 includes a micro water pump 212, which is installed inside the propeller 26; a water inlet pipe 213, one end of which is inserted into the outlet end of the micro water pump 212, and the longitudinal section of the water inlet pipe 213 is conical, with a water inlet hole inside; a drive pipe 214, which is installed inside the rotating rod 24, and the lower end of the drive pipe 214 is inserted into the outlet end of the micro water pump 212; the inner surface of the mounting frame 23 is provided with a water inlet groove connected to the drive pipe 214; the inner surface of the rotating ring 22 is provided with an arc-shaped groove connected to the water inlet groove; and three high-pressure nozzles 215, which are fixedly installed below the rotating ring 22 and connected to the arc-shaped groove inside the rotating rod 24. The spray nozzles of the high-pressure nozzles 215 are arranged obliquely along the inner surface of the third layer net 14.

[0055] When the micro water pump 212 is started, external water enters through the inlet pipe 213 under the suction of the pump. One end of the inlet pipe 213 has a conical cross-section and an inlet hole. After entering, the water flows into the drive pipe 214. The drive pipe 214 transmits the water through the channel inside the rotating rod 24. Due to the special connection structure between the mounting frame 23 and the rotating ring 22—namely, the inlet groove inside the mounting frame 23 and the arc-shaped groove inside the rotating ring 22—the water is ultimately delivered to three high-pressure nozzles 215. The high-pressure nozzles 215 are fixed below the rotating ring 22 and connected to the arc-shaped groove, thus spraying high-pressure water onto the surface of the third layer net 14. During the operation of the collection net, whether it is the sticky substance of the plankton itself or impurities in the water causing the plankton to adhere to the third layer net 14... The impact of the high-pressure water jet can wash away any debris or other impurities adhering to the mesh surface. Furthermore, since the nozzle is located on top of the third layer mesh 14, it can perform a more comprehensive cleaning of the mesh surface. During the use of the rotating layering component 2, the rotating ring 22 is constantly rotating in the water. At this time, the high-pressure nozzle 215 will also make a circular motion, which causes the high-pressure water sprayed from the high-pressure nozzle 215 to continuously change the spray angle on the surface of the third layer mesh 14. This allows for the cleaning of every corner of the third layer mesh 14, avoiding any blind spots. This comprehensive spraying effect can effectively and quickly clean plankton and debris from the inner surface of the third layer mesh 14.

[0056] like Figure 4As shown, the collection assembly 15 includes: an outer ring collector 151, which is installed below the filter plate 27, and a first collection groove is provided on the inner side of the outer ring collector 151; an inner ring collector 152, which is installed inside the outer ring collector 151, and a fixed sleeve that is rotatably connected to the rotating rod 24 is installed in the middle of the top of the inner ring collector 152, and a second collection groove is provided on the top of the inner ring collector 152 and on the outer edge of the fixed sleeve; and two drain pipes 153, one of which is installed at the bottom of the outer ring collector 151 and connected to the first collection groove, and the other is fixedly installed on one side of the inner ring collector 152 and connected to the second collection groove, and the drain pipes 153 are arranged at a downward inclination to facilitate better discharge of planktonic plants and animals.

[0057] During the collection process, zooplankton can pass through the third layer net 14 and fall to the top of the inner ring collector 152 through the filter plate 27. Then, under the action of gravity, they roll or slide into the second collection tank. Phytoplankton, on the other hand, are intercepted by the second layer net 13 and pass through the filter plate 27 under the action of gravity into the first collection tank of the outer ring collector 151. When it is necessary to remove the collected plankton samples, the drain pipe 153 connected to the first collection tank can discharge the phytoplankton in the first collection tank, and the drain pipe 153 connected to the second collection tank can discharge the zooplankton in the second collection tank, thus realizing the stratified collection and separate export of plankton and phytoplankton.

[0058] like Figure 5 As shown, three scraper strips 216 are installed on the outer side of the propeller 26 and between the spaced propellers 26. The scraper strips 216 are made of a certain elastic material and have scraper holes. The scraper strips 216 are inclined along the inner side of the third layer of mesh 14.

[0059] Because three scraper blades 216 are installed on the outside of the propeller 26 and between the spaced propellers 26, the rotation of the propeller 26 will drive the scraper blades 216 to move together. The scraper blades 216 are made of a certain elastic material. During the rotation, on the one hand, they can deform appropriately according to the impact force of the water flow and the force when they come into contact with the inner side of the third layer net 14, so as to better adapt to the water flow environment and fit the net surface. On the other hand, the scraper blades 216 are inclined along the inner side of the third layer net 14. When rotating, their inclined surface will generate an oblique scraping force on plankton and debris that may be attached to the net surface.

[0060] Meanwhile, scraper holes are provided on the scraper blades 216. During rotation, water can pass through these scraper holes. This will not cause too much obstruction to the water flow, ensuring that the propeller 26 can continue to rotate normally under the action of the water flow. At the same time, the turbulence and impact force generated when the water flows through the scraper holes will further enhance the disturbance effect on plankton and debris, making it easier for them to detach from the inner side of the third layer net 14.

[0061] The scraper holes of the three scraper blades 216 are located at different positions on the same water surface.

[0062] Because the scraper holes are located at different positions on the same water surface, when the propeller 26 drives the scraper blades 216 to rotate, the water flow through these holes at different positions will generate water flow in different directions. These multi-angle water flow can thoroughly clean the inner surface of the third layer net 14, greatly improving the cleaning efficiency of plankton and debris.

[0063] The working principle of this invention is as follows: This high-efficiency separation ecological planktonic plant and animal collection net, during use, is first placed in the water via hook 12 and moved. Water and plankton first contact the first layer of net 11 in the middle of the frame 1. The first layer of net 11 can intercept large debris such as branches and large plastic fragments, preventing clogging or interference with subsequent filtration layers. Next, the water flow and plankton reach the second layer of net 13, which has a cone-shaped structure. The plankton can continue downwards with the water flow, passing through the second layer of net 13 to reach the third layer of net 14. At this point, the second layer of net 13 is located on the same axis outside the third layer of net 14, while the plankton are all mixed within the third layer of net 14. Because the propeller 26 generates rotational force under the action of the water flow, the rotational force of the propeller 26... The rotation rod 24 transmits power to the auger pusher plate 25, causing the auger pusher plate 25 to rotate on the inner side of the third layer net 14. Simultaneously, three corrugated plates 28, arranged in a circular array on the outer side of the auger pusher plate 25, also rotate. Since one end of the corrugated plates 28 is inclined along the inner side of the third layer net 14, during rotation, the corrugated plates 28 exert a spiral-like propulsion effect on the plankton. On one hand, they push the plankton along the inner side of the third layer net 14; on the other hand, the inclined corrugated plates 28 cause the plankton to experience a component force towards the mesh openings of the third layer net 14 when pushed, which helps in the separation and precise interception of plankton. This allows phytoplankton to pass through the third layer net 14 and enter the second layer net 13 for interception, while zooplankton is intercepted in the third layer net 14.

[0064] Because the troughs of the three corrugated plates 28 are not on the same horizontal plane, they will produce an alternating stirring effect during rotation, so that the plankton at different heights inside the third layer net 14 can be effectively stirred and pushed, making the filtration process of plankton in the third layer net 14 more comprehensive and uniform.

[0065] When the micro water pump 212 is started, external water enters through the inlet pipe 213 under the suction of the water pump. After entering, the water flows into the drive pipe 214. The drive pipe 214 transmits water through the channel inside the rotating rod 24. Through the inlet groove inside the frame 23 and the arc groove inside the rotating ring 22, the water is finally delivered to three high-pressure nozzles 215. The high-pressure nozzles 215 are fixed below the rotating ring 22 and connected to the arc groove. They spray high-pressure water onto the surface of the third layer net 14 to clean the plankton's own sticky substances, impurities in the water that cause plankton to stick to the third layer net 14, or other debris attached to the net surface. Since the rotating ring 22 is constantly rotating in the water, the high-pressure nozzles 215 also make circular motion, so that the spray angle is constantly changing.

[0066] The rotation of propeller 26 will drive scraper 216 to move together. Scraper 216 is made of elastic material and can deform according to the water flow and the force on the contact net surface, so as to better adapt to the water flow environment and fit the net surface. Scraper 216 is inclined along the inner side of the third net 14. When rotating, its inclined surface will generate oblique scraping force on plankton and debris that may be attached to the net surface.

[0067] Zooplankton pass through the third net 14 and fall onto the top of the inner ring collector 152 via the filter plate 27. They then roll or slide into the second collection trough under the influence of gravity. Phytoplankton are intercepted by the second net 13 and pass through the filter plate 27 under the influence of gravity into the first collection trough of the outer ring collector 151.

[0068] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency separated ecological plankton collecting net, comprising a frame (1), characterized in that; The middle part of the frame (1) is provided with a first layer of net (11) for intercepting large sundries, the top of the first layer of net (11) is provided with a hook (12), the bottom of the frame (1) is provided with a second layer of net (13) for intercepting phytoplankton, the second layer of net (13) is in a conical structure, the lower part of the second layer of net (13) is provided with a third layer of net (14) with the same axis, the third layer of net (14) is used for intercepting zooplankton, the lower part of the second layer of net (13) and the third layer of net (14) is provided with a collecting assembly (15) for collecting the filtered phytoplankton and zooplankton in layers; A rotating and layering assembly (2) is arranged on the top of the third layer of net (14) and is used for quickly separating and filtering the phytoplankton and zooplankton; A high-pressure jetting assembly (211) is arranged on the top of the third layer of net (14) and is used for quickly cleaning the phytoplankton and sundries on the inner surface of the third layer of net (14); The rotating and layering assembly (2) comprises: A fixed ring (21) is mounted on the middle and lower part of the second layer of net (13); A rotating ring (22) is rotatably connected to the inner ring of the fixed ring (21); A matching frame (23) is fixedly mounted on the inner ring of the rotating ring (22) and is in a herringbone structure; A rotating rod (24) is fixedly mounted on the middle and lower part of the matching frame (23); A Jiaolong push plate (25) is fixedly mounted on the outer side of the rotating rod (24) and is in a conical structure, and the conical structure of the Jiaolong push plate (25) is on the inner side of the third layer of net (14); A propeller (26) is arranged below the collecting assembly (15) and is fixedly connected to the lower part of the rotating rod (24); A filter plate (27) is mounted below the second layer of net (13) and the third layer of net (14), and the lower end of the rotating rod (24) penetrates through the middle part of the filter plate (27); Three corrugated plates (28) are annularly arranged on the outer side of the Jiaolong push plate (25), and one end of the corrugated plate (28) is inclined along the inner side of the third layer of net (14); The valleys of the three corrugated plates (28) are not on the same horizontal plane; The high-pressure jetting assembly (211) comprises: A miniature water pump (212) is mounted in the propeller (26); An inlet pipe (213) is inserted into the outlet end of the miniature water pump (212), and the longitudinal section of one end of the inlet pipe (213) is in a conical structure, and a water inlet hole is formed in the inlet pipe (213); A drive pipe (214) is mounted in the rotating rod (24), the lower end of the drive pipe (214) is inserted into one side of the water outlet end of the miniature water pump (212), a water inlet groove is formed in the matching frame (23) and is in communication with the drive pipe (214), and an arc-shaped groove is formed in the rotating ring (22) and is in communication with the water inlet groove; Three high-pressure nozzles (215) are fixedly mounted below the rotating ring (22) and are in communication with the arc-shaped groove in the rotating ring (22); The jetting ports of the high-pressure nozzles (215) are inclined along the inner side of the third layer of net (14). The outer side of the Jiaolong push plate (25) and the interval corrugated plate (28) are provided with three scraping strips (216), the scraping strips (216) are provided with a certain elastic material, the scraping strips (216) are inclined along the inner side of the third layer net (14), and the scraping strip (216) is provided with a scraping plate hole position. The scraping plate hole positions of the three scraping strips (216) are different in position on the same water surface.

2. The high-efficiency separation type ecological plankton collector net according to claim 1, characterized in that; The collecting assembly (15) comprises: An outer ring collecting piece (151) is installed below the filter plate (27), and the inner side of the outer ring collecting piece (151) is provided with a first collecting groove; An inner ring collecting piece (152) is installed inside the outer ring collecting piece (151), and a fixed sleeve rotatingly connected with the rotating rod (24) is installed at the top of the inner ring collecting piece (152), and the top of the inner ring collecting piece (152) and the outer edge of the fixed sleeve are provided with a second collecting groove; Two drain pipes (153) are provided, one of which is installed at the lowermost end of the outer ring collecting piece (151) and is communicated with the first collecting groove, and the other is fixedly installed on one side of the inner ring collecting piece (152) and is communicated with the second collecting groove.

Images