Separation and collection system for planktonic animals and plants

Abstract

The invention discloses a planktonic animal and plant separation and collection system, which comprises a support assembly, which comprises a pair of stand columns; a cross beam I; a cross beam II; an electric telescopic cylinder I; at least two longitudinal beams; a horizontal plate; a 8-shaped track; an electric telescopic cylinder II; a cross beam III; an electric telescopic cylinder III; the collecting net comprises a net ring; the inner net and the outer net are coaxially nested, and the net ring is detachably hung on a piston rod of the electric telescopic cylinder II through at least three ropes; the screw I is coaxially connected with the intranet and arranged at the bottom of a net pipe of the intranet; the outer side wall of a bottle opening of the sampling bottle I is detachably in threaded connection with the screw opening I; the screw II is coaxially connected with the outer net and arranged at the bottom of the net pipe of the outer net; a bottle opening of the sampling bottle II is detachably in threaded connection with the screw opening II. The planktonic animal and plant separation and collection system provided by the invention can ensure the sampling effect, data reliability and operation consistency, and saves time and labor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of environmental monitoring, and particularly relates to a plankton and zooplankton separation and collection system. BACKGROUND

[0002] Plankton is an important indicator for biological monitoring, evaluation of water pollution and nutrient level. According to different needs, the conventional operation process includes three steps of collection, separation and collection, that is, the plankton is first collected by using a plankton net with a specific aperture, and then the plankton of different particle size levels is separated and collected according to needs. The above operation steps are tedious, and there are multiple phytoplankton and zooplankton in the same plankton net. Before the plankton is separated and collected after being collected, the zooplankton will feed a large amount of phytoplankton, resulting in that the number of phytoplankton in the sample is underestimated, the biomass of zooplankton is increased after feeding and the zooplankton is overestimated, the natural ratio of the two is destroyed, and the signal of the indicator organism is further covered or misjudged, and even the reliability of the application scenarios such as water quality evaluation and ecological risk assessment based on plankton data is affected. The Chinese patent with the application number 201520339710.7 provides a plankton collection and separation net with different particle size levels, which includes a net ring and a plurality of net clothes. Each net clothes is nested from inside to outside, and is tied to the net ring through a net opening. The mesh aperture of the inner net clothes is larger than that of the outer net clothes, and the length from the net bottom to the net opening of the inner net clothes is smaller than that of the outer net clothes. The net bottom of each net clothes is provided with a net bottom pipe, and each net clothes is provided with a side zipper extending from the net bottom to the net opening. The utility model is based on the principle of plankton collection and separation, and integrates the net clothes with different mesh apertures into one device to simultaneously collect and separate the plankton samples of different particle size levels. However, the following problems still exist: each net clothes is provided with a side zipper extending from the net bottom to the net opening, which is used for conveniently collecting the plankton samples of different particle size levels. However, the side zipper may be jammed or rusted after long-term use in water, which affects the normal opening and closing of the side zipper. If the side zipper cannot be smoothly opened, it is difficult to collect the plankton samples of the corresponding particle size level from the net bottom pipe, and the sampling efficiency is reduced. In addition, the existence of the side zipper may also affect the integrity and sealing performance of the net clothes, causing the plankton to escape from the gap of the zipper and affecting the accuracy of the sampling results.

[0003] When the plankton net is used for sampling, the plankton net is generally fixed on a long rod, and then the rod is controlled by manpower to drive the plankton net to slide in the surface water or the water body in the shape of an ∞, so as to realize the filtering and collection of the plankton in a certain volume of water in the shape of an ∞. The process is time-consuming and laborious. In addition, the size and speed of the horizontal 8-shaped trajectory in the application process of the plankton net are different due to different operators, which further leads to the deviation of the sample representativeness and the decrease of the data comparability.

[0004] In summary, there is an urgent need for a planktonic plant separation and collection system that can guarantee sampling effectiveness, data reliability, and operational consistency. Summary of the Invention

[0005] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0006] Another objective of this invention is to provide a planktonic plant and animal separation and collection system that can ensure sampling effect, data reliability and operational consistency, while saving time and effort.

[0007] To achieve these objectives and other advantages according to the present invention, a planktonic flora and fauna separation and collection system is provided. The system includes: The support assembly includes a pair of uprights detachably mounted on the hull via a base; both uprights are extendable. A telescopic rod; a crossbeam I, horizontally positioned between a pair of columns; a crossbeam II, horizontally positioned at the top of a pair of columns; an electric telescopic cylinder I, its cylinder body hinged to the crossbeam I, and its piston rod hinged to the crossbeam II; at least two longitudinal beams, extending parallel to each other on one side of the support frame facing the hull, with one end of each longitudinal beam detachably mounted on the crossbeam II; a horizontal plate, slidably positioned below the at least two longitudinal beams via at least a pair of guide rails; an ∞-shaped track, positioned on the lower surface of the horizontal plate; an electric telescopic cylinder II, its cylinder body slidably positioned on the ∞-shaped track via a power slider, and its piston rod extending downwards; a crossbeam III, laterally positioned above the at least two longitudinal beams; an electric telescopic cylinder III, its cylinder body hinged to the crossbeam III, and its piston rod hinged to the horizontal plate; and The sampling net includes a mesh ring; an inner mesh and an outer mesh coaxially nested together, with the angle between the inner mesh and the axis being greater than the angle between the outer mesh and the axis. The mesh count of the inner mesh is less than that of the outer mesh. The mesh openings of both the inner and outer meshes are detachably mounted on the mesh ring. The mesh ring is detachably hung on the piston rod of an electric telescopic cylinder II by at least three ropes. A screw thread I is coaxially connected to the inner mesh and positioned at the bottom of the inner mesh tube. A sampling bottle I has its outer wall of its opening detachably threadedly connected to the screw thread I, and the diameter of the sampling bottle I is smaller than the outer diameter of its opening. A screw thread II is coaxially connected to the outer mesh and positioned at the bottom of the outer mesh tube. A sampling bottle II has its opening detachably threadedly connected to the screw thread II.

[0008] Preferably, it also includes: a retaining ring, which is disposed on the piston rod of the electric telescopic cylinder II; The buckle includes a pair of hooks, the bottoms of which are hinged together, the two openings of which are opposite each other, and the hooks are simultaneously hung on the fixing ring from both sides.

[0009] Preferably, it also includes: a U-shaped rotating plate, which protrudes above the mouth of the sampling bottle I, and both ends of the U-shaped rotating plate are detachably disposed at the mouth of the sampling bottle I.

[0010] Preferably, it also includes: a barrier net, which is conical and wrapped around the outer periphery of at least three ropes, and the projection area of ​​the barrier net on the net ring is smaller than the area of ​​the net ring, and the aperture of the barrier net is greater than 3 centimeters.

[0011] Preferably, the main body of the ∞-shaped track is an annular guide rail with an I-shaped cross-section, and a lane-changing gap is provided at the intersection of the ∞-shaped tracks in the middle. The power slider is a ring-shaped guide rail power slider. The rollers of the power slider are rolled in a pair of guide grooves I on both sides of the ∞-shaped track, and the radial length of the power slider is greater than 1.2 times the length of the notch at the intersection of the ∞-shaped track.

[0012] Preferably, it also includes: a guide groove II, which is formed on the end face of the track change gap of the ∞-shaped track, and the center line of the guide groove II is on the same plane as the center line of the guide groove I.

[0013] Preferably, it also includes: a water depth sensor, which is installed at the port of the data collection network; The controller is wirelessly connected to the power slider, water depth sensor, electric telescopic cylinder I, electric telescopic cylinder II, and electric telescopic cylinder III.

[0014] Preferably, it also includes: an extension rod, one end of which is detachably mounted on the piston rod of the electric telescopic cylinder II, and the other end extends outward; a net ring is detachably hung on the other end of the extension rod by a rope.

[0015] Preferably, it further includes: a support ring, which is disposed between the outer mesh and the inner mesh, and on the plane where the support ring is located, the outer diameter of the support ring is smaller than the inner diameter of the cross-section of the outer mesh, and the inner diameter of the support ring is larger than the outer diameter of the cross-section of the inner mesh. At least one pair of connecting rods has one end fixed to the outer wall of screw hole I, and the other end fixed to the support ring.

[0016] Preferably, the overall width of the ∞-shaped track is greater than 20 centimeters, and the overall length of the ∞-shaped track is greater than 40 centimeters.

[0017] The present invention has at least the following beneficial effects: In the support assembly, a pair of columns are detachably mounted on the hull via a base, used to stably support the mechanical operation of the phytoplankton separation system; crossbeam I is used to further connect and fix the pair of support columns, ensuring structural stability and improving support strength; in addition, crossbeam I also provides a relatively centrally located support structure for electric telescopic cylinder I, ensuring that electric telescopic cylinder I can provide relatively centrally located stable support for the vertical reciprocating movement of crossbeam II, and uniformly drive the pair of support columns to extend and retract at the same length, so as to effectively adjust the relative height of the horizontal plate and the collection net to the hull, so as to effectively cooperate with the manual fixing of the collection net to the piston rod of electric telescopic cylinder II, or to transport the collection net to a suitable water depth; at least two longitudinal beams, crossbeam II, and electric telescopic cylinder II are also included. The telescopic cylinder III provides effective support for the horizontal movement of the horizontal plate, allowing adjustment of the relative distance between the piston rod of the electric telescopic cylinder II and the hull in the horizontal direction. This facilitates manual fixing of the collection net to the piston rod of the electric telescopic cylinder II, or manual removal of the collection net after collection. Furthermore, it ensures a safe distance between the collection net and the hull during collection, preventing contact that could damage the net or affect the accuracy of the data. The collection net is supported by a support assembly, resulting in an ∞-shaped trajectory with stability far exceeding that of manual methods. The net's operating speed in the water is controllable and does not decrease with increasing cycles, saving time and effort. Sampling meets standards, ensuring accurate test results.

[0018] In a phytoplankton collection net, the mesh rings are typically made of stainless steel, aluminum alloy, or other materials with sufficient rigidity and toughness to support the openings of the coaxially nested inner and outer nets, ensuring that phytoplankton can enter the collection net with the water flow. The main material of both the inner and outer nets is nylon sieve fabric, which has high strength, corrosion resistance, and good water permeability, making it suitable for collecting phytoplankton in marine or freshwater environments. The angle between the inner net and the axis is greater than the angle between the outer net and the axis to ensure a certain distance between the sidewalls of the inner and outer nets, maintaining the effective filtration area of ​​the inner net and improving filtration efficiency. The mesh count of the inner net is smaller than that of the outer net; for example, the inner net can be a #13 zooplankton net with an aperture of 112 micrometers (125 mesh), and the outer net can be a #25 phytoplankton net with an aperture of 65 micrometers (…). The 200-mesh screen is used to filter phytoplankton, effectively separating them from zooplankton and preventing zooplankton from consuming phytoplankton. This ensures the accuracy of zooplankton and phytoplankton counts in the sample, providing more reliable phytoplankton data for water quality assessment and ecological risk assessment. Screw I is used to connect sampling bottle I, allowing it to be placed into the screw I from the mesh opening and secured, ensuring the bottle opening is flush with the top of the screw I. This allows collected zooplankton to enter the sampling bottle smoothly. After collection, sampling bottle I can be removed from the mesh opening without needing additional openings in the inner and outer meshes, facilitating easy access. Screw II is used to connect sampling bottle II, allowing it to be placed directly from the bottom of the outer mesh without affecting the integrity of the inner and outer meshes.

[0019] In summary, the planktonic plant and animal separation and collection system provided by this invention can ensure sampling effect, data reliability and operational consistency, while saving time and effort.

[0020] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0021] Figure 1 This is a side view of the support component in one embodiment of the present invention; Figure 2 This is a front view structural diagram of a pair of columns according to one embodiment of the present invention; Figure 3 This is a top view of the support component in one embodiment of the present invention; Figure 4 This is a front view schematic diagram of the ∞-shaped track on the horizontal plate in one embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the collection net described in one embodiment of the present invention; Figure 6This is a schematic diagram of the structure of the collection net described in another embodiment of the present invention; Figure 7 This is a schematic diagram of the buckle structure in one embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the collection net in another embodiment of the present invention, wherein a U-shaped rotating plate is shown; Figure 9 This is a schematic diagram of the structure of the collection net in another embodiment of the present invention, wherein a baffle net is shown; Figure 10 This is a front view schematic diagram of the ∞-shaped track on the horizontal plate in another embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of guide groove I and guide groove II at the lane change gap in one embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of the collection net in another embodiment of the present invention, wherein an extension rod is shown; Figure 13 This is a schematic diagram of the structure of the collection net in another embodiment of the present invention, wherein a support ring is shown. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0023] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not imply the presence or addition of one or more other elements or combinations thereof.

[0024] like Figures 1-5 As shown, the present invention provides a planktonic flora and fauna separation and collection system, comprising: a support component 1, which... The system includes a pair of uprights 101, detachably mounted on the hull via a base, both uprights being telescopic rods; a crossbeam I 102, horizontally positioned between the pair of uprights; a crossbeam II 103, horizontally positioned above the pair of uprights; an electric telescopic cylinder I 104, its cylinder body hinged to the crossbeam I, and its piston rod hinged to the crossbeam II; at least two longitudinal beams 105, extending parallel to each other on one side of the support frame facing the hull, with one end of each longitudinal beam detachably mounted on the crossbeam II; a horizontal plate 106, slidably positioned below the at least two longitudinal beams via at least a pair of guide rails 1061; an ∞-shaped track 107, positioned on the lower surface of the horizontal plate; an electric telescopic cylinder II 108, its cylinder body slidably positioned on the ∞-shaped track via a power slider 112, and its piston rod extending downwards; and a crossbeam III 109, transversely positioned above the at least two longitudinal beams; the electric telescopic cylinder III... 110, whose cylinder body is hinged on the crossbeam III, and the piston rod of the electric telescopic cylinder III is hinged on the horizontal plate; and the collection net 2, which includes a net ring 201; an inner net 202 and an outer net 203 coaxially nested, with the angle between the inner net and the axis being greater than the angle between the outer net and the axis, and the mesh number of the inner net being less than that of the outer net. For example, the inner net can be set as a 13# zooplankton net with a pore size of 112 micrometers (125 mesh), and the outer net can be set as a 25# phytoplankton net with a pore size of 65 micrometers (200 mesh) for filtering phytoplankton; the net openings of the inner net and the outer net can be detachably set on the net ring, and the net ring can be detachably hung on the piston rod of the electric telescopic cylinder II by at least three ropes; screw I 204, which is coaxially connected to the inner net and set at the bottom of the inner net's net tube; sampling bottle I 205, the outer wall of the bottle opening is detachably threaded to the screw port I, and the diameter of the bottle body of sampling bottle I is smaller than the outer diameter of the bottle opening; screw port II 206, is coaxially connected to the bottom of the mesh tube of the outer mesh; sampling bottle II 207, the bottle opening is detachably threaded to the screw port II.

[0025] In this design, the support assembly includes a pair of uprights detachably mounted on the hull via bases, providing stable support for the mechanical operation of the phytoplankton separation system. Crossbeam I further connects and secures the pair of support columns, ensuring structural stability and increasing support strength. Additionally, crossbeam I provides a relatively centered support structure for the electric telescopic cylinder I, ensuring that the electric telescopic cylinder I provides stable support for the crossbeam II's relatively centered up-and-down reciprocating movement, and evenly drives the pair of support columns to extend and retract at equal lengths. This effectively adjusts the relative height of the horizontal plate and the collection net to the hull, facilitating manual fixing of the collection net to the piston rod of the electric telescopic cylinder II, or transporting the collection net to a suitable water depth. At least two longitudinal beams, crossbeam II, and... The electric telescopic cylinder III provides effective support for the horizontal movement of the horizontal plate, allowing adjustment of the relative distance between the piston rod of the electric telescopic cylinder II and the hull in the horizontal direction. This facilitates manual fixing of the collection net to the piston rod of the electric telescopic cylinder II, or manual removal of the collection net after collection. Furthermore, it ensures a safe distance between the collection net and the hull during collection, preventing contact that could damage the net or affect the accuracy of the data. The collection net is supported by a support assembly, resulting in an ∞-shaped trajectory with stability far exceeding that of manual methods. The net's operating speed in the water is controllable and does not decrease with increasing cycles, saving time and effort. Sampling meets standards, ensuring accurate test results.

[0026] In a phytoplankton collection net, the mesh rings are typically made of stainless steel, aluminum alloy, or other materials with sufficient rigidity and toughness to support the openings of the coaxially nested inner and outer nets, ensuring that phytoplankton can enter the collection net with the water flow. The main material of both the inner and outer nets is nylon sieve fabric, which has high strength, corrosion resistance, and good water permeability, making it suitable for collecting phytoplankton in marine or freshwater environments. The angle between the inner net and the axis is greater than the angle between the outer net and the axis to ensure a certain distance between the sidewalls of the inner and outer nets, maintaining the effective filtration area of ​​the inner net and improving filtration efficiency. The mesh count of the inner net is smaller than that of the outer net; for example, the inner net can be a #13 zooplankton net with an aperture of 112 micrometers (125 mesh), and the outer net can be a #25 phytoplankton net with an aperture of 65 micrometers (…). The 200-mesh screen is used to filter phytoplankton, effectively separating them from zooplankton and preventing zooplankton from consuming phytoplankton. This ensures the accuracy of zooplankton and phytoplankton counts in the sample, providing more reliable phytoplankton data for water quality assessment and ecological risk assessment. Screw I is used to connect sampling bottle I, allowing it to be placed into the screw I from the mesh opening and secured, ensuring the bottle opening is flush with the top of the screw I. This allows collected zooplankton to enter the sampling bottle smoothly. After collection, sampling bottle I can be removed from the mesh opening without needing additional openings in the inner and outer meshes, facilitating easy access. Screw II is used to connect sampling bottle II, allowing it to be placed directly from the bottom of the outer mesh without affecting the integrity of the inner and outer meshes.

[0027] In summary, the planktonic plant and animal separation and collection system provided by this invention can ensure sampling effect, data reliability and operational consistency, while saving time and effort.

[0028] The specific data collection operation is as follows: 1) Control the extension of electric telescopic cylinder I to raise the horizontal plate so that the lower end of the piston rod of electric telescopic cylinder II is too high to a position suitable for manually fixing the collection net. Then, fix the collection net. At this time, electric telescopic cylinder II is in the retracted state. 2) Control the retraction of electric telescopic cylinder I and the extension of electric telescopic cylinder III, thereby synchronously driving electric telescopic cylinder II to move to a suitable horizontal distance from the hull; 3) Control the extension of the electric telescopic cylinder II to move the collection net closer to and into the water body. For example, after the net ring enters the water to a depth of 20cm, control the electric telescopic cylinder II to stop extending. At this time, the designated collection position is reached. 4) Start the power slider to drive the collection net to move in an ∞-shaped trajectory in the water body to complete the separation and collection of planktonic plants and animals.

[0029] 5) Control the power slider to stop, then follow the steps 3)-2)-1) in sequence to remove the collection net, and then remove collection bottle I and collection bottle II from the collection net.

[0030] In practical applications, multiple sizes of observation bottle caps can be equipped. The top of the observation bottle cap has a through hole, into which a magnifying glass is horizontally inserted. After the collection is completed, sampling bottle I and sampling bottle II are removed. If temporary on-site observation is required, a matching observation bottle cap can be placed on the mouth of sampling bottle I and / or the mouth of sampling bottle II for simple observation to determine or adjust the next collection plan. After the observation is completed, the observation bottle caps are replaced with ordinary bottle caps and sampling bottle I and sampling bottle II are stored properly. Sampling bottle I and sampling bottle II are made of transparent polyethylene terephthalate (PET) material to facilitate on-site observation.

[0031] like Figure 6 , 7 As shown, in a preferred embodiment, it further includes: a fixing ring 111, which is disposed on the piston rod of the electric telescopic cylinder II; The buckle 208 includes a pair of hooks, the bottoms of the pair of hooks are hinged together, the two openings of the pair of hooks are opposite each other, and the pair of hooks are simultaneously hung on the fixing ring from both sides of the fixing ring.

[0032] In this design, the retaining ring is used for detachable fixing clips and the data collection net; the clips are configured as a pair of hooks, which can easily hang the data collection net on the retaining ring, and the two openings of the pair of hooks are set opposite each other, effectively preventing the net from coming off from the opening of one of the hooks. The structure is simple and easy to use.

[0033] like Figure 8 As shown, in a preferred embodiment, it further includes a U-shaped rotating plate 2051, which protrudes above the mouth of sampling bottle I, and both ends of the U-shaped rotating plate are detachably disposed at the mouth of sampling bottle I. For example, two receiving holes are provided on the inner side of the mouth, and both ends of the U-shaped rotating plate are detachably inserted into the two receiving holes. The U-shaped rotating plate is used to manually rotate sampling bottle I, which makes it easier to pick up and put down sampling bottle I.

[0034] like Figure 9As shown, a preferred embodiment further includes: a baffle net 209, which is conical and wraps around the outer periphery of at least three ropes to block large debris. Furthermore, the conical inclined surface of the baffle net helps the surrounding water flow to quickly carry away large debris near the inclined surface of the baffle net, preventing it from obstructing the net. The projection area of ​​the baffle net on the net ring is smaller than the area of ​​the net ring, and the aperture of the baffle net is greater than 3 cm. On the one hand, this creates a certain gap between the baffle net and the net ring, and the aperture is large enough to allow small target phytoplankton to pass through directly, reducing filtration loss of phytoplankton and small zooplankton, and more completely preserving the biological composition of the sample. On the other hand, the gap between the baffle net with a smaller projection area and the edge of the net ring can effectively reduce the probability of impurities adhering to the edge, indirectly reducing the loss of phytoplankton due to adsorption and improving the representativeness of the sample.

[0035] like Figure 10 As shown, in a preferred embodiment, the main body of the ∞-shaped track is an annular guide rail with an I-shaped cross-section. A lane-changing notch 113 is provided at the intersection of the ∞-shaped tracks to facilitate lane changing of the power slider at the intersection, enabling ∞-shaped trajectory sliding. The power slider is an annular guide rail power slider, with its rollers rolling within a pair of guide grooves I on both sides of the ∞-shaped track. The radial length of the power slider is greater than 1.2 times the length of the notch at the intersection of the ∞-shaped tracks. This ensures that the power slider can flexibly change lanes at the lane-changing notch of the ∞-shaped track without completely detaching from it, guaranteeing safe operation.

[0036] like Figure 11 As shown, in a preferred embodiment, it further includes: guide groove II 114, which is formed on the end face of the lane change gap of the ∞-shaped track, and the center line of guide groove II is on the same plane as the center line of guide groove I 1071. During the lane change process, the inner side of the roller 1121 of the power slider rolls in contact with the main body of the track, while the outer side of the roller entering the lane change gap rolls in contact with the guide grooves II on both sides, thereby achieving limit protection for the part of the roller located in the lane change gap and further improving the safety of the lane change.

[0037] In a preferred embodiment, the system further includes: a depth sensor installed at the opening of the collection net; and a controller wirelessly connected to the powered slider, depth sensor, and electric telescopic cylinders I, II, and III. The controller is mounted on the hull and typically equipped with a data display screen and control panel. It monitors the depth sensor and coordinates the opening and closing of the powered slider, depth sensor, and electric telescopic cylinders I, II, and III to effectively assist in the separation and collection of planktonic plants and animals.

[0038] like Figure 12As shown, in a preferred embodiment, it further includes: an extension rod 115, one end of which is detachably mounted on the piston rod of the electric telescopic cylinder II, and the other end extending outward; the net ring is detachably hung on the other end of the extension rod via a rope. The extension rod is used to extend the distance between the net ring and the piston rod of the electric telescopic cylinder II, thereby effectively adjusting the size of the ∞-shaped trajectory of the collection net in the water body to adapt to the sampling needs of different water bodies and reasonably increase the applicable range.

[0039] like Figure 13 As shown, in a preferred embodiment, it further includes: a support ring 211, which is disposed between the outer mesh and the inner mesh, and on the plane where the support ring is located, the outer diameter of the support ring is smaller than the inner diameter of the cross-section of the outer mesh, and the inner diameter of the support ring is larger than the outer diameter of the cross-section of the inner mesh; at least one end of at least one pair of connecting rods is fixed to the outer wall of the screw hole I, and the other end is fixed to the support ring.

[0040] In a preferred embodiment, the overall width of the ∞-shaped track is greater than 20 cm, and the overall length of the ∞-shaped track is greater than 40 cm. The powered slider slides on the ∞-shaped track, causing the collection net within the water body to slide along the ∞-shaped trajectory, thus achieving effective data collection.

[0041] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A system for separating and collecting planktonic flora and fauna, characterized in that, include: The support assembly includes a pair of uprights detachably mounted on the hull via a base; both uprights are extendable. Shrinking rod; A horizontal beam I is horizontally positioned between a pair of columns; a horizontal beam II is horizontally positioned at the top of a pair of columns; an electric telescopic cylinder I has its cylinder body hinged to the horizontal beam I, and its piston rod hinged to the horizontal beam II; at least two longitudinal beams extend parallel to each other on one side of the support frame facing the hull, and one end of each longitudinal beam is detachably mounted on the horizontal beam II; a horizontal plate is slidably positioned below the at least two longitudinal beams via at least a pair of guide rails; an ∞-shaped track is positioned on the lower surface of the horizontal plate; an electric telescopic cylinder II has its cylinder body slidably mounted on the ∞-shaped track via a power slider, and its piston rod extends downward; a horizontal beam III is transversely positioned above the at least two longitudinal beams; an electric telescopic cylinder III has its cylinder body hinged to the horizontal beam III, and its piston rod hinged to the horizontal plate; and The data collection net includes a mesh ring; an inner mesh and an outer mesh coaxially nested together, with the angle between the inner mesh and the axis being greater than the angle between the outer mesh and the axis, and the mesh count of the inner mesh being less than that of the outer mesh. The mesh openings of both the inner and outer meshes are detachably mounted on the mesh ring, and the mesh ring is detachably hung on the piston rod of the electric telescopic cylinder II by at least three ropes; and a threaded joint I, which is coaxially connected to the inner mesh and mounted at the bottom of the inner mesh tube. Sampling bottle I, the outer wall of its mouth is detachably threaded to screw port I, and the diameter of the body of sampling bottle I is smaller than the outer diameter of the mouth; Screw II, which is coaxially connected to the outer mesh and located at the bottom of the outer mesh tube; Sampling bottle II, the bottle mouth of which is detachably connected to screw port II by a thread.

2. The planktonic flora and fauna separation and collection system as described in claim 1, characterized in that, Also includes: A retaining ring is mounted on the piston rod of the electric telescopic cylinder II; The buckle includes a pair of hooks, the bottoms of which are hinged together, the two openings of which are opposite each other, and the hooks are simultaneously hung on the fixing ring from both sides.

3. The planktonic flora and fauna separation and collection system as described in claim 1, characterized in that, Also includes: The U-shaped rotating plate protrudes above the mouth of sampling bottle I, and both ends of the U-shaped rotating plate are detachably set at the mouth of sampling bottle I.

4. The planktonic flora and fauna separation and collection system as described in claim 1, characterized in that, Also includes: The barrier net is conical in shape and wraps around the periphery of at least three ropes. The area of ​​the barrier net projected onto the net ring is smaller than the area of ​​the net ring, and the aperture of the barrier net is greater than 3 centimeters.

5. The planktonic flora and fauna separation and collection system as described in claim 1, characterized in that, The main body of the ∞-shaped track is an I-shaped circular guide rail, and a lane-changing gap is set at the intersection of the ∞-shaped tracks in the middle. The power slider is a ring-shaped guide rail power slider. The rollers of the power slider are rolled in a pair of guide grooves I on both sides of the ∞-shaped track, and the radial length of the power slider is greater than 1.2 times the length of the notch at the intersection of the ∞-shaped track.

6. The planktonic flora and fauna separation and collection system as described in claim 5, characterized in that, Also includes: Guide groove II is located on the end face of the track change gap of the ∞-shaped track, and the center line of guide groove II is on the same plane as the center line of guide groove I.

7. The planktonic flora and fauna separation and collection system as described in claim 1, characterized in that, Also includes: A water depth sensor is installed at the port of the data collection network; The controller is wirelessly connected to the power slider, water depth sensor, electric telescopic cylinder I, electric telescopic cylinder II, and electric telescopic cylinder III.

8. The planktonic flora and fauna separation and collection system as described in claim 1, characterized in that, Also includes: An extension rod, one end of which is detachably mounted on the piston rod of the electric telescopic cylinder II, and the other end extends outward; The net is detachably attached to the other end of the extension pole via a rope.

9. The planktonic flora and fauna separation and collection system as described in claim 1, characterized in that, Also includes: A support ring is set between the outer mesh and the inner mesh. On the plane where the support ring is located, the outer diameter of the support ring is smaller than the inner diameter of the cross-section of the outer mesh, and the inner diameter of the support ring is larger than the outer diameter of the cross-section of the inner mesh. At least one pair of connecting rods has one end fixed to the outer wall of screw hole I, and the other end fixed to the support ring.

10. The planktonic flora and fauna separation and collection system as described in claim 1, characterized in that, The overall width of the ∞-shaped track is greater than 20 centimeters, and the overall length of the ∞-shaped track is greater than 40 centimeters.

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