CN107711053B - Novel shallow sea plankton layered collection device and application thereof - Google Patents

Abstract

The invention discloses a novel layered collection device for plankton in shallow sea and application thereof, belonging to the technical field of plankton collection. The device comprises a rectangular grid with upper and lower openings, four corners of the grid are connected with rings, and the outer side of the grid is fixed with water collection The grid is connected with a collection net, the end of the collection net is connected with a bottom tube of the biological net, the bottom tube of the biological net is arranged inside the bottom basket, and the bottom basket is fixedly connected with the lifting ring through a rope. The device is used for layered collection of plankton in shallow sea. The collection device is light in size and simple in operation, and can realize layered collection of different water depths, which is of great help for analyzing the vertical movement of plankton at the same time, and can also collect water bodies while collecting plankton, and analyze water quality parameters at the same time. Reduce the number of collections, reduce resource consumption, and improve the effectiveness of water analysis and the efficiency of device use.

Description

A new type of shallow sea plankton layered collection device and its application

technical field

The invention belongs to the technical field of plankton collection, and in particular relates to a novel layered collection device for plankton in shallow seas and its application.

Background technique

Plankton generally refers to floating organisms that live in water and lack effective mobility, including phytoplankton and zooplankton. Some plankton have the ability to swim, but their swimming speed is often slower than that of the ocean current in which they are located, so they cannot effectively swim flexibly in the water. Plankton, among the organisms in the oceans, lakes, rivers and other waters, has no ability to move at all, or some are very weak, so they cannot move against the current, but live on the surface of the water. Such organisms are collectively called plankton. biology.

Plankton sampling is one of the important contents of marine surveys. Because different plankton have different vertical movement characteristics, stratified sampling of plankton is of great significance for understanding the ecological function zoning and distribution of plankton.

In the prior art, such as the Chinese invention patent authorization document with the authorization announcement number CN103931572B, the invention relates to a plankton collection device and collection method. In the actual collection process, the invention cannot perform one-time multi-layer collection, and the collection operation consumes resources. larger.

SUMMARY OF THE INVENTION

One of the objectives of the present invention is to provide a new type of shallow-sea plankton biomass that can realize multi-layer sampling, and can collect plankton and water bodies at the same time, with high collection efficiency, high success rate, low resource consumption, portable device, and simple and reliable use. Layer collection device.

The second purpose of the present invention is to provide a new type of shallow-sea plankton stratified collection device for shallow-sea plankton stratified collection. This application can realize multi-layer sampling, and can collect plankton and water at the same time. rate is low.

The solution adopted by the present invention to solve the above technical problems is as follows: a novel layered collection device for plankton in shallow sea, comprising a rectangular grid with upper and lower openings, four corners of the grid are connected with rings, and a water collector is fixed on the outer side of the grid. The grid is connected with a collection net, the end of the collection net is connected with a bottom tube of the biological net, the bottom tube of the biological net is arranged inside the bottom basket, and the bottom basket is fixedly connected with the lifting ring through a rope. The lifting ring is used to fix the device with ropes, which is convenient to control the device to enter the water. There are lifting rings at the four corners of the grid, which can improve the stability of the device when it is lowered and lifted; the setting of the water collector enables the device to collect plankton samples. At the same time, water samples can also be collected, and two collections are completed in one operation, which not only improves the efficiency of collection operations, but also reduces resource consumption and reduces the impact on the ecological environment; the collection network collects plankton in the water, increasing the amount of one collection, and Through the collection net, plankton at different depths of water layers can be guided into different bottom pipes of the bionet, which is convenient for collecting plankton; the bottom basket can not only fix the bottom pipe of the bionet, but also protect it to avoid the bottom pipe of the bionet from turning over. The bottom tube of the biological net is used to store plankton samples, which is conducive to the storage of plankton and to the researchers to take samples; between the grid and the collection net, the bottom tube of the collection net and the biological net The connection between them is simple and stable, and it is easy to disassemble and replace, which is conducive to later maintenance. The collection device is light in size and simple in operation, and can realize layered collection of different water depths, which is of great help for analyzing the vertical movement of plankton at the same time, and can also collect water bodies while collecting plankton, and analyze water quality parameters at the same time. Reduce the number of collections, reduce resource consumption, and improve the effectiveness of water analysis and the efficiency of device use.

In order to optimize the above technical scheme, the measures taken also include: the inner wall of the grid is provided with a horizontal slideway, the slideway is embedded with a closed rod and an open rod, and the number of slideways is 3 to 12. Each slideway is embedded with a pair of closed rods and open rods. The closed rods and the open rods can move regularly in the slideway. In the initial state, the closed rods and the open rods are on the same side of the grid, and the network port of the collection network is closed; When the open rod moves to the other side of the grid, the net port of the collection network is opened; when the closed rod also moves to the other side of the grid, the net port of the collection net closes again to complete the collection of plankton in one water layer. Combined with the open lever to control the opening and closing of the network port of the collection network, the control is simple and effective, and the maximum area of the network port can be maintained at the beginning, which effectively improves the collection efficiency. The number of slides determines the number of layers that the device can collect in layers at one time. The more slides, the more layers can be collected at one time, but the consumption of the device will also increase, so it should be based on the actual situation. Decide the number of slides so that the device is in the highest utilization state.

Preferably, the closing rod is provided with a groove on the side facing the opening rod, the bottom of the groove is connected with a zipper, the height of the opening rod is 0.78~0.84 of the height of the groove on the closing rod, the side of the opening rod facing the closing rod is connected with a zipper, and the zipper is connected to the zipper. Collection network connection. The zipper connected on the closed rod and the open rod is used to connect with the collection net. This connection method is convenient for the device to change the number of collection nets at any time, and it is also conducive to the maintenance of the collection net in the later stage; the zipper of the closed rod is set at the bottom of the groove, and the open rod The zipper is arranged on the side facing the closed rod. The setting of the above two zipper positions can realize that the higher end of the network port of the collection network covers the lower end of the network port, so as to prevent the opening of the collection network port from affecting the work of other collection networks; The ratio of the height to the height of the closed rod groove is conducive to placing the net layer of the collection net in a suitable position to avoid crushing the collection net. The above design is not only conducive to the change and maintenance of the number of collection nets, but also avoids affecting the normal operation of the collection operation, and has a protective effect on the collection net. To achieve the purpose of multi-layer acquisition.

Preferably, the head end of the collection net is a rectangular mesh port, a pair of parallel sides of the rectangular mesh port are connected with a zipper tape, the other pair of parallel sides of the rectangular mesh port are connected with elastic ropes in series, and the zipper tape is connected with the grid , The end of the collection net is a circular mesh port, and the edge of the circular mesh port is connected with a zipper tape. The zipper tape connected by the collection net is matched with the zipper connected on the opening rod and the closing rod in the grid, and the length of the net edge connected with the zipper tape on the collection net is equal to the length of the opening rod and the closing rod, which is convenient for collecting the net of the net when collecting. The mouth can be in the maximum state to improve the collection efficiency of plankton; the two sides of the collection net connected with the elastic rope can shrink the net edge when the net mouth is closed, so as to avoid the net edge floating in the water and affect the collection operation. Straighten the network port when punching the card to prevent plankton from escaping.

Preferably, the bottom basket is cylindrical, the bottom basket is hollow, the side bars of the bottom basket are connected with locks, and the locks are fixed to the bottom tube of the bio-net. The bottom basket rope and the lifting ring are fixedly connected to improve the connection reliability of the bottom basket; the bottom basket is hollowed out to avoid the accumulation of water in the bottom basket and improve the flexibility of the operation of the device; the bottom tube of the bio-net is fastened with a lock to avoid the bottom of the bio-net The dumping and falling of the tube improves the effectiveness of plankton collection; the bottom basket has a protective effect on the bottom tube of the biological net, which can avoid the collision of the bottom tube of the biological net and prolong the service life of the bottom tube of the biological net.

Preferably, the bottom pipe of the biological net includes a water storage tank, the upper end of the water storage tank is connected with an upper valve, the upper end of the upper valve is connected with a flowmeter, the upper end of the flowmeter is connected with a fixed net ring, the lower end of the water storage tank is connected with a lower valve, and the inner wall of the water storage tank is connected elastically network. The water storage tank is used to store the collected plankton; the flow meter is used to quantitatively calculate the volume of water flowing into the depth, which is convenient for the calculation and reference of the later data; the fixed network ring is used to fix the collection network; the upper valve and the lower valve are used to control the plankton The inflow and outflow of the sample; the elastic net has a buffering effect on the plankton flowing into the water storage tank, and has a significant effect on maintaining the integrity of the collected plankton samples, which can effectively improve the researchability of the plankton samples. analysis is of great significance. The above-mentioned biological net bottom pipe can effectively collect and store plankton, and has a simple and clear structure and convenient maintenance.

Preferably, the fixed net ring includes a fixed part and a clamp, the fixed part is connected with the flow meter, the fixed part is hollow cylindrical, the outer wall of the fixed part is connected with a rubber zipper tail, and the zipper tail is connected with a zipper joint. The zipper tape at the end of the collection net is connected with the zipper card joint connected to the fixed net ring. This connection method is convenient for the disassembly of the collection net and the bottom tube of the biological net. The zipper card joint is connected with a zipper tail. The zipper tail can not only improve the stability of the zipper card joint It can also improve the connection strength between the collection and the fixed net ring, so as to prevent the collection net from slipping and affecting the collection progress during the collection operation, and the zipper tail is replaced by a whole piece of the conventional zipper tooth particle separation design, and the surface of the zipper tail is wrapped with Rubber material, the above design can increase the friction between the clamp and the fixed net ring at the tail of the zipper, improve the clamping effect of the clamp, and greatly improve the connection between the collection net and the bottom tube of the biological net .

Preferably, the upper valve is internally provided with threads, and the upper valve and the water storage tank are connected by threads. The threaded connection is convenient for the disassembly and replacement of the water storage tank, which is not only conducive to later maintenance, but also facilitates the replacement of water storage tanks with different water storage volumes, so as to improve the use flexibility of the device.

Preferably, the water extractor is fixed on the outer wall of the grid by a fixing member, the rear end of the water extractor is connected with a control box, the upper end of the water extractor is connected with an upper cover, the lower end of the water extractor is connected with a lower cover, and the rear end of the water extractor is connected with a Telescopic mechanism, the lower end of the water collector is connected with a water outlet pipe, and the surface of the water outlet pipe is provided with a pipe clamp. The water collector is fixed on the outer wall of the grid, and can also collect water bodies while collecting plankton, so that the device can collect plankton and water bodies in the same water layer at the same time, and improve the utilization rate of the device. The overall structure of the water collector is simple and the collection effect is good. The telescopic mechanism controls the opening of the upper cover and the lower cover to collect the sample water. After the collection is completed, the upper cover and the lower cover are closed. Reduced or impure.

Preferably, the telescopic mechanism includes a two-way push rod, the head of the two-way push rod is connected to the upper cover through a tension rope, the tail of the two-way push rod is connected to the lower cover through a tension rope, and a rubber rope located inside the water collector is connected between the upper cover and the inner wall of the lower cover . The two-way push rod is a waterproof part and can work normally in the water body; the rubber rope is arranged between the inner wall of the upper cover and the lower cover, which has the function of retracting the upper cover and the lower cover, and can restore the opened upper cover and lower cover to the closed state ; When the two-way push rod is retracted, the tension rope pulls and opens the upper cover and the lower cover, and the water body can be collected; the telescopic mechanism enables the water collector to be automatically opened and closed in the water, the operation is simple and effective, and the implementation is high.

Preferably, the pipe clamp comprises a shell, one end of the shell is provided with an inlet, the upper end of the inlet is provided with a first roller, the upper end of the first roller is provided with a second roller, the upper end of the second roller is provided with a cylindrical outlet, the first roller and the second roller The rollers are symmetrically arranged. The head of the inlet is round, the tail is rectangular, and the interior is gradual. This design is convenient for the insertion of the outlet pipe. When the circular outlet pipe is inserted, it gradually changes from a circle to a rectangle, which is convenient for subsequent clamping; the first roller and The second rollers are symmetrically arranged, and the distance between the two first rollers is 1.8~2.6 times the distance between the two second rollers, so that the clamping of the water outlet pipe by the pipe clamp is in a gradual state, reducing the damage to the water outlet pipe; The use of the first roller and the second roller to replace the conventional fixing parts can not only reduce the static friction force generated between the pipe clamps when clamping the water outlet pipe, but also reduce the resistance between the roller and the water outlet pipe, and reduce the external force required for clamping. , which is convenient for the operator to operate, and also reduces the damage to the water outlet pipe; the use of the first roller and the second roller instead of the conventional fixing parts can also improve the fixing effect of the pipe clamp. In case of water leakage, and the two groups of rollers in the static state are mutually restrained, the movement of the water outlet pipe between the rollers can be avoided, thereby having an unexpected lifting effect on the water blocking of the water outlet pipe; the pipe clamp is included by the shell, which improves the strength of the pipe clamp , has a protective effect on the internal structure and prolongs the service life. The pipe clamp has a delicate structure, good water blocking effect on the water outlet pipe, small damage to the water outlet pipe, and long service life.

The outer wall of the grid is also connected with a general control module and a power supply module, and its outer wall is waterproofed. The general control module and the power supply module control the work of the water collector, closed rod, open rod, flow meter, upper valve and lower valve. In this way, the whole device can automatically and effectively collect plankton and water bodies, with high precision during operation, and is convenient for the control operation of the operator.

A novel layered collection device for plankton in shallow sea is used for layered collection of plankton in shallow sea. The collection device can control the opening and closing of the net port at different depths to achieve the purpose of multi-layer sampling. At the same time, it is equipped with a water collector, which can collect water bodies at the same time, which is of great help for analyzing the vertical movement of plankton at the same time. The number and life history stages of plankton in the water layer can be displayed in a very specific manner, and it has great application prospects in the layered collection of plankton in shallow seas.

Compared with the prior art, the beneficial effects of the present invention are as follows: 1) the collection device is light in size and simple in operation, and can realize layered collection of different water depths, and simultaneously conduct water quality parameter analysis, effectively reducing the number of collections and reducing resource consumption; 2. ) The collection device is used for the layered collection of plankton in shallow seas, which can realize multi-layer collection, simultaneous collection of plankton and water bodies; 3) The pipe clamp structure is exquisite, the water blocking effect on the outlet pipe is good, and the outlet pipe is damaged. It is small and has a long service life. It is also suitable for the water-blocking use of rubber pipes, and has a great prospect of use; 4) The fixed net ring not only facilitates the replacement of the collection net, but also improves the fixation between the collection net and the bottom tube of the biological net. Reliability; 5) The slideway, closed rod and open rod set in the grid can realize the simultaneous fixation of multiple collection nets to achieve the purpose of multi-layer collection.

The present invention adopts the above technical scheme to provide a novel layered collection device for shallow sea plankton and its application, which makes up for the deficiencies of the prior art, and has reasonable design and convenient operation.

Description of drawings

1 is a schematic structural diagram of a collection device of the present invention;

Fig. 2 is the top view of the grid of the present invention;

Fig. 3 is the sectional view of the grid A-A part of the present invention;

4 is a cross-sectional view of the B-B part of the grid of the present invention;

Fig. 5 is the connection schematic diagram of the closed lever and the open lever of the present invention;

6 is a schematic diagram of a network port of a collection network according to the present invention;

Fig. 7 is the structural representation of the bottom basket of the present invention;

Fig. 8 is the structural representation of the water sampling device of the present invention;

Fig. 9 is the front view of the pipe clamp of the present invention;

10 is a top view of the internal structure of the pipe clamp of the present invention;

Figure 11 is a left side view of the internal structure of the pipe clamp of the present invention;

Fig. 12 is the structural representation of the bottom pipe of the biological net of the present invention;

Fig. 13 is a schematic diagram of the fixed net ring of the present invention.

Description of reference numerals: 1 grid; 2 lifting ring; 3 water collector; 4 collecting net; 41 elastic cord; 42 zipper tape; 5 bottom basket; Road; 10 bottom tube of biological net; 101 fixed net ring; 102 flow meter; 103 upper valve; 104 water storage tank; 105 elastic net; 106 lower valve; 107 zipper snap joint; 108 zipper tail; 11 body; 13 pipe clamp; 131 shell; 132 inlet; 133 first drum; 134 second drum; 135 outlet; 14 water outlet; 15 lower cover; 16 control box; 17 two-way push rod; 18 tension rope; 19 upper cover; 20 Rubber cord.

Detailed ways

Describe in further detail below in conjunction with accompanying drawing and embodiment:

Example 1:

As shown in Figures 1 to 13, a new type of shallow sea plankton layered collection device includes a rectangular grid 1 with upper and lower openings, four corners of the grid 1 are connected with rings 2, the outer side of the grid 1 is fixed with a water collector 3, and the grid 1 is The grid 1 is connected with a collection net 4, and the end of the collection net 4 is connected with a biological net bottom pipe 10. The biological net bottom pipe 10 is arranged inside the bottom basket 5, and the bottom basket 5 is fixedly connected to the lifting ring 2 by ropes. The inner wall of the grid 1 is provided with a horizontal slideway 9, the slideway 9 is embedded with a closing rod 6 and an open rod 8, and the number of the slideway 9 is four. The side of the closing rod 6 facing the opening rod 8 is provided with a groove, the bottom of the groove is connected with a zipper 7, the height of the opening rod 8 is 0.8 of the height of the groove of the closing rod 6, and the side of the opening rod 8 facing the closing rod 6 is connected with a zipper 7 , the zipper 7 is connected with the collection network 4. The first end of the collection net 4 is a rectangular mesh port, a pair of parallel sides of the rectangular mesh port is connected with a zipper tape 42, the other pair of parallel sides of the rectangular mesh port is connected with an elastic cord 41 in series, and the zipper tape 42 is connected to the grid. 1 Connection, the end of the collection net is a circular mesh port, and a zipper tape 42 is connected to the edge of the circular mesh port. The bottom basket 5 is cylindrical, the bottom basket 5 is hollow, and the side bars of the bottom basket 5 are connected with a lock 51 , and the lock 51 is fixedly connected to the bottom tube 10 of the bio-net. The biological net bottom pipe 10 includes a water storage tank 104, an upper valve 103 is connected to the upper end of the water storage tank 104, a flowmeter 102 is connected to the upper end of the upper valve 103, a fixed net ring 101 is connected to the upper end of the flowmeter 102, and a lower valve 106 is connected to the lower end of the water storage tank 104. , an elastic net 105 is connected to the inner wall of the water storage tank 104 . The fixed net ring 101 includes a fixed part and a clamp, the fixed part is connected with the flow meter 102, the fixed part is hollow cylindrical, the outer wall of the fixed part is connected with a rubber zipper tail 108, and the zipper tail 108 is connected with a zipper clip 107. The upper valve 103 is internally provided with threads, and the upper valve 103 and the water storage tank 104 are connected by threads. The water extractor 3 is fixed on the outer wall of the grid 1 through the fixing member 12, the rear end of the water extractor 3 is connected with a control box 16, the upper end of the water extractor 3 is connected with an upper cover 19, and the lower end of the water extractor 3 is connected with a lower cover 15. A telescopic mechanism is connected to the rear end of the water device 3 , a water outlet pipe 14 is connected to the lower end of the water collector 3 , and a pipe clamp 13 is provided on the surface of the water outlet pipe 14 .

The conventional technology in this embodiment is the prior art known to those skilled in the art, and will not be described in detail here.

Example 2:

As shown in Figures 1 to 13, a new type of shallow sea plankton layered collection device includes a rectangular grid 1 with upper and lower openings, four corners of the grid 1 are connected with rings 2, and a water collector 3 is fixed on the outer side of the grid 1. The grid 1 is connected with a collection net 4, and the end of the collection net 4 is connected with a bottom tube 10 of biological net. The bottom tube 10 of the biological net is arranged inside the bottom basket 5, and the bottom basket 5 is fixedly connected to the lifting ring 2 by ropes. The lifting ring 2 is used to fix the device with ropes, which is convenient to control the water entry of the device. The four corners of the grid 1 are provided with the lifting ring 2, which can improve the stability of the device when it is lowered and lifted; While collecting plankton samples, water samples can also be collected, and two collections are completed in one operation, which not only improves the efficiency of collection operations, but also reduces resource consumption and impact on the ecological environment; the collection net 4 collects plankton in the water, adding one more time The amount collected, and through the collection net 4, plankton at different depths of water layers can be guided to different biological net bottom pipes 10, so as to facilitate the collection of plankton; the bottom basket 5 can not only fix the biological net bottom pipes 10, but also Protection is performed to prevent the bottom tube 10 of the biological net from being overturned or collided, so as to improve the success rate of the device collection; the bottom tube 10 of the biological net is used to store plankton samples, which is conducive to the storage of plankton, and is also conducive to researchers to take samples; Grid 1 The connection with the collection net 4 and between the collection net 4 and the biological net bottom pipe 10 is simple and stable, and is easy to disassemble and replace, which is conducive to later maintenance. The collection device is light in size and simple in operation, and can realize layered collection of different water depths, which is of great help for analyzing the vertical movement of plankton at the same time, and can also collect water bodies while collecting plankton, and analyze water quality parameters at the same time. Reduce the number of collections, reduce resource consumption, and improve the effectiveness of water analysis and the efficiency of device use.

The inner wall of the grid 1 is provided with a horizontal slideway 9, the slideway 9 is embedded with a closing rod 6 and an open rod 8, and the number of the slideway 9 is four. Each slideway 9 is embedded with a pair of closing rods 6 and opening rods 8. The closing rods 6 and the opening rods 8 can move regularly in the slideway 9. In the initial state, the closing rods 6 and the opening rods 8 are in the same grid 1 side, the network port of the collection net 4 is closed; when the open rod 8 moves to the other side of the grid 1, the network port of the collection net 4 is opened; when the closing rod 6 also moves to the other side of the grid 1, the collection net 4 The net port is closed again to complete the collection of plankton in one water layer. There is a combination of closed rod 6 and open rod 8 to control the opening and closing of the net port of the collection net 4. The control is simple and effective, and the net port can be kept at the maximum area at the beginning, which is effective. Improve collection efficiency. The number of slides 9 determines the number of layers that the device can collect in layers at one time. The actual situation determines the number of slideways 9, so that the device is in the highest utilization state.

The side of the closing rod 6 facing the opening rod 8 is provided with a groove, the bottom of the groove is connected with a zipper 7, the height of the opening rod 8 is 0.79 of the height of the groove of the closing rod 6, and the side of the opening rod 8 facing the closing rod 6 is connected with a zipper 7 , the zipper 7 is connected with the collection network 4. The zipper 7 connected on the closed rod 6 and the open rod 8 is used to connect with the collection net 4. This connection method is convenient for the device to change the quantity of the collection net 4 at any time, and is also conducive to the maintenance of the collection net 4 in the later stage; the zipper 7 of the closed rod 6 It is arranged at the bottom of the groove, and the zipper 7 of the opening lever 8 is arranged on the side facing the closing lever 6. The arrangement of the above two zipper 7 positions can realize that the higher end of the network port of the collection network 4 covers the lower end of the network port, so as to avoid collecting The opening of the net 4 port affects the work of other collection nets 4; the ratio of the height of the open rod 8 to the height of the groove of the closed rod 6 is conducive to placing the net layer of the collection net 4 in a suitable position to avoid crushing the collection net 4. The above design is not only conducive to the change and maintenance of the number of collection nets 4, but also can avoid affecting the normal progress of the collection operation, and has a protective effect on the collection net 4. The slideway 9, the closed rod 6 and the open rod 8 can realize multiple collection nets. fixed at the same time to achieve the purpose of multi-layer acquisition.

The first end of the collection net 4 is a rectangular mesh port, a pair of parallel sides of the rectangular mesh port is connected with a zipper tape 42, the other pair of parallel sides of the rectangular mesh port is connected with an elastic cord 41 in series, and the zipper tape 42 is connected to the grid. 1 Connection, the end of the collection net is a circular mesh port, and a zipper tape 42 is connected to the edge of the circular mesh port. The zipper tape 42 connected to the collection net 4 is matched with the zipper 7 connected to the opening rod 8 and the closing rod 6 in the grid 1, and the length of the net edge of the collection net 4 connected to the zipper tape 42 is the same as the length of the opening rod 8 and the closing rod 6. The lengths are equal, so that the net port of the collection net 4 can be in the maximum state during collection, which improves the collection efficiency of plankton; the two sides of the collection net 4 connected with the elastic rope 41 in series can shrink the net edge when the net port is closed to avoid the net edge Fluttering in the water will affect the collection operation. You can also straighten the net port when the 4 net ports of the collection net are punched in to avoid the escape of plankton.

The bottom basket 5 is cylindrical, the bottom basket 5 is hollow, and the side bars of the bottom basket 5 are connected with a lock 51 , and the lock 51 is fixedly connected to the bottom tube 10 of the bio-net. The rope of the bottom basket 5 is fixed with the lifting ring 2 to improve the connection reliability of the bottom basket 5; the bottom basket 5 is hollowed out to avoid water accumulation in the bottom basket 5 and improve the flexibility of the operation of the device; the bottom tube of the bio-net is fastened with the lock 51 10. The bottom tube 10 of the biological net can be prevented from falling off, and the effectiveness of plankton collection is improved; the bottom basket 5 has a protective effect on the bottom tube 10 of the biological net, which can avoid the collision of the bottom tube 10 of the biological net, and extend the bottom tube 10 of the biological net. service life.

The biological net bottom pipe 10 includes a water storage tank 104, an upper valve 103 is connected to the upper end of the water storage tank 104, a flowmeter 102 is connected to the upper end of the upper valve 103, a fixed net ring 101 is connected to the upper end of the flowmeter 102, and a lower valve 106 is connected to the lower end of the water storage tank 104. , an elastic net 105 is connected to the inner wall of the water storage tank 104 . The water storage tank 104 is used to store the collected plankton; the flow meter 102 quantitatively calculates the volume of water flowing into the depth, which is convenient for the calculation and reference of the later data; the fixed network ring 101 is used to fix the collection network 4; the upper valve 103 and the lower valve 106 is used to control the inflow and outflow of plankton samples; the elastic net 105 has a buffering effect on the plankton flowing into the water storage tank 104, and has a significant improvement effect on maintaining the integrity of the collected plankton samples, which can effectively improve the plankton samples. The research is of great significance to the analysis of plankton in the later period. The above-mentioned biological net bottom pipe 10 can effectively collect and store plankton, has a simple and clear structure, and is easy to maintain.

The elastic net 105 connected inside the bottom tube 10 of the biological net is dense in mesh size, and the pore size is smaller than that of individual plankton. The preparation scheme of the sustained-release microcapsules is as follows: dissolving the dispersant in deionized water, stirring and heating up to 53~62°C to obtain a dispersed phase; dissolving polystyrene and anti-sticking agent in an organic In the solvent, the organic phase is then added dropwise to the dispersed phase to form an O/W dispersion system, and the organic solvent is completely volatilized to obtain a slow-release microcapsule with a release agent as a core material and styrene as a wall material, and the above-mentioned release agent is: The weight ratio of ABS anti-sticking agent, insect wax and erucamide is 1:0.04~0.06:0.003~0.007, and the dispersant is polyvinyl alcohol. The anti-sticking effect of the above anti-sticking agent is much better than that of single ABS anti-sticking agent. Anti-sticking effect, the added insect wax and erucamide have a synergistic effect with ABS anti-sticking agent, which can reduce the angle of contact angle and improve the overall anti-sticking effect of the anti-sticking agent. The interaction of the clusters is connected together to form an integrated anti-adhesive material. The slow-release microcapsules can well inhibit the adhesion of the collected plankton on the surface of the elastic net 105, and its initial release speed is slowed down, and it has a long-term effect. Anti-stick effect.

The fixed net ring 101 includes a fixed part and a clamp, the fixed part is connected with the flow meter 102, the fixed part is hollow cylindrical, the outer wall of the fixed part is connected with a rubber zipper tail 108, and the zipper tail 108 is connected with a zipper clip 107. The zipper tape 42 at the end of the collection net 4 is connected to the zipper clip joint 107 connected to the fixed net ring 101. This connection method is convenient for the disassembly of the collection net 4 and the bottom tube 10 of the biological net. The zipper clip joint 107 is connected with a zipper tail 108. The zipper tail 108 can not only improve the stability of the zipper card joint 107, but also improve the connection strength between the collecting net and the fixed net ring 101, so as to avoid the collecting net 4 from slipping off during the collecting operation and affecting the collecting progress, and the zipper tail 108 is replaced by a whole one. The zipper teeth particle separation design, and the surface of the zipper tail 108 is wrapped with rubber material, the above design enables the zipper tail 108 to increase the friction between the clamp and the fixed net ring 101, improve the clamping effect of the clamp, and improve the collection efficiency. The connection between the net 4 and the bottom tube 10 of the bio-net has a great lifting effect.

The upper valve 103 is internally provided with threads, and the upper valve 103 and the water storage tank 104 are connected by threads. The threaded connection facilitates the disassembly and replacement of the water storage tank 104, which is not only conducive to later maintenance, but also facilitates the replacement of the water storage tanks 104 with different water storage capacities, so as to improve the flexibility of the device.

The water extractor 3 is fixed on the outer wall of the grid 1 through the fixing member 12, the rear end of the water extractor 3 is connected with a control box 16, the upper end of the water extractor 3 is connected with an upper cover 19, and the lower end of the water extractor 3 is connected with a lower cover 15. A telescopic mechanism is connected to the rear end of the water device 3 , a water outlet pipe 14 is connected to the lower end of the water collector 3 , and a pipe clamp 13 is provided on the surface of the water outlet pipe 14 . The water collector 3 is fixed on the outer wall of the grid 1, and can also collect water bodies while collecting plankton, so that the device can collect plankton and water bodies in the same water layer at the same time, and improve the utilization rate of the device. The overall structure of the water collector 3 is simple, and the collection effect is good. The telescopic mechanism controls the opening of the upper cover 19 and the lower cover 15 to collect the sample water body. After the collection is completed, the upper cover 19 and the lower cover 15 are closed, and the pipe clamp 13 blocks the water outlet of the water outlet pipe 14. , to avoid a reduced or impure sample collected.

The telescopic mechanism includes a two-way push rod 17. The head of the two-way push rod 17 is connected to the upper cover 19 through a tension rope 18, and the tail of the two-way push rod 17 is connected to the lower cover 15 through the tension rope 18. The rubber cord 20 inside the water vessel 3. The two-way push rod 17 is a waterproof part and can work normally in the water body; the rubber cord 20 is arranged between the upper cover 19 and the inner wall of the lower cover 15, and has the function of retracting the upper cover 19 and the lower cover 15, so that the opened upper cover 19 and the lower cover 15 return to the closed state; when the two-way push rod 17 is retracted, the tension rope 18 pulls and opens the upper cover 19 and the lower cover 15, and water collection can be performed; the telescopic mechanism enables the water collector 3 to be automatically opened in the water And closed, the operation is simple and effective, and the implementation is high.

The pipe clamp 13 includes a housing 131, one end of the housing 131 is provided with an inlet 132, the upper end of the inlet 132 is provided with a first roller 133, the upper end of the first roller 133 is provided with a second roller 134, and the upper end of the second roller 134 is provided with a cylindrical outlet 135 , the first roller 133 and the second roller 134 are symmetrically arranged. The head of the inlet 132 is round, the tail is rectangular, and the interior is gradual. This design is convenient for the insertion of the water outlet pipe 14. When the circular water outlet pipe 14 is inserted, it gradually changes from a circle to a rectangle, which is convenient for subsequent clamping; The first roller 133 and the second roller 134 are symmetrically arranged, and the distance between the two first rollers 133 is 1.8 to 2.6 times the distance between the two second rollers 134, so that the pipe clamp 13 holds the water outlet pipe 14 gradually. The first roller 133 and the second roller 134 are used to replace the conventional fixing parts, which can not only reduce the static friction force generated by the pipe clamp 13 when clamping the water outlet pipe 14, but also reduce the friction between the roller and the water outlet pipe 14. The resistance between the water outlet pipes 14 reduces the external force required for clamping, which is convenient for the operator to operate, and also reduces the damage to the water outlet pipes 14; the first roller 133 and the second roller 134 are used to replace the conventional fixing parts, and the pipe clamp can also be lifted. The fixed effect of 13, the two groups of rollers hold the water outlet pipe 14 in a gradual manner to avoid water leakage, and the two groups of rollers in the static state are mutually restrained, which can prevent the water outlet pipe 14 from moving between the rollers, and then the water outlet pipe 14. The water-blocking effect has an unexpected lifting effect; the pipe clamp 13 is included by the casing 131, which improves the strength of the pipe clamp 13, has a protective effect on the internal structure, and prolongs the service life. The pipe clamp 13 has a refined structure, good water blocking effect on the water outlet pipe 14, little damage to the water outlet pipe 14, and long service life.

A novel layered collection device for plankton in shallow sea is used for layered collection of plankton in shallow sea. The collection device can control the opening and closing of the net port at different depths to achieve the purpose of multi-layer sampling. At the same time, it is equipped with a water collector, which can collect water bodies at the same time, which is of great help for analyzing the vertical movement of plankton at the same time. The number and life history stages of plankton in the water layer can be displayed in a very specific manner, and it has great application prospects in the layered collection of plankton in shallow seas.

The conventional technology in this embodiment is the prior art known to those skilled in the art, and will not be described in detail here.

Example 3:

As shown in Figures 1 to 13, a new type of shallow sea plankton layered collection device, the collection method is: use ropes to fix the lifting ring 2, fix the lifting ring 2 on the hoisting device for offshore operations, and place the collection net 4 at the net port. One side of the zipper tape 42 is connected to the closing rod 6, the other side is connected to the opening rod 8, the end of the collection net 4 is connected to the fixed net ring 101, and the grid 1 is connected to the water layer to be collected. Net 4 and bottom basket 5 are also fixed with an equal number of biological net bottom tubes 10. In the initial state, the closed rod 6 and the open rod 8 are set on one side of the grid 1, all the net ports of the collection net 4 are closed, and the biological net is set. The upper valve 103 and the lower valve 106 of the bottom pipe 10 are closed, and the upper cover 19 and the lower cover 15 of the water harvester are also closed. When the command for launching water is issued, the collection device is lowered to the lowest water layer to be collected, and the bidirectional push rod 17 in the water sampling device 3 shrinks, so that the tension rope 18 pulls the upper cover 19 and the lower cover 15 to open, and water sampling is performed. Collection, after the collection is completed, the two-way push rod 17 is extended, the tension rope 18 loses its tension, and the upper cover 19 and the lower cover 15 complete the water sample collection under the action of the pulling force of the rubber rope 20 and the water pressure; The rod 8 is moved to the other side of the grid 1, so that the uppermost collection net 4 is opened, and the upper valve 103 of the bottom pipe 10 of the biological net is opened to collect plankton. After the collection is completed, the upper valve 103 is closed, and the uppermost closed rod 6 also moves. To the other side of grid 1, that is, to complete the collection of plankton and water bodies in the lowest water layer. After the collection is completed, the device is pulled by the rope and moved upward. When it moves to the water layer of the sub-bottom layer, the above operation is repeated. On the valve 103, the water sampling device 3 that is different from the previous one is also used to collect water, so as to replace the step operation and complete the collection of all water layers. Complete collection.

The conventional technology in this embodiment is the prior art known to those skilled in the art, and will not be described in detail here.

The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Those skilled in the art can also make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims (7)

1. A novel shallow sea plankton layered collection device comprises a rectangular grid (1) with an upper opening and a lower opening, and is characterized in that lifting rings (2) are connected to four corners of the grid (1), a water sampler (3) is fixed on the outer side surface of the grid (1), a collection net (4) is connected in the grid (1), a biological net bottom pipe (10) is connected to the tail end of the collection net (4), the biological net bottom pipe (10) is arranged in a bottom basket (5), and the bottom basket (5) is fixedly connected with the lifting rings (2) through ropes;

the inner wall of the grid (1) is provided with horizontal slideways (9), the slideways (9) are embedded and connected with closing rods (6) and opening rods (8), and the number of the slideways (9) is 3-12;

one side of the closing rod (6), which faces the opening rod (8), is provided with a groove, the bottom of the groove is connected with a zipper (7), the height of the opening rod (8) is 0.78-0.84 of the height of the groove of the closing rod (6), the side face, which faces the closing rod (6), of the opening rod (8) is connected with the zipper (7), and the zipper (7) is connected with the collection net (4).

2. The novel shallow sea plankton layered collection device as claimed in claim 1, characterized in that the head end of the collection net (4) is a rectangular net opening, one pair of parallel edges of the rectangular net opening is connected with a zipper tape (42), the other pair of parallel edges of the rectangular net opening is connected with an elastic rope (41) in series, the zipper tape (42) is connected with the grid (1), the tail end of the collection net is a circular net opening, and the edges of the circular net opening are connected with the zipper tape (42).

3. The novel shallow sea plankton layered collection device is characterized in that the bottom basket (5) is cylindrical, the bottom basket (5) is hollow, a lock catch (51) is connected to a side rod of the bottom basket (5), and the lock catch (51) is fixedly connected with a biological net bottom pipe (10).

4. The novel shallow sea plankton layered collection device is characterized in that the biological net bottom pipe (10) comprises a water storage tank (104), an upper valve (103) is connected to the upper end of the water storage tank (104), a flow meter (102) is connected to the upper end of the upper valve (103), a net fixing ring (101) is connected to the upper end of the flow meter (102), a lower valve (106) is connected to the lower end of the water storage tank (104), and an elastic net (105) is connected to the inner wall of the water storage tank (104).

5. The novel shallow sea plankton layered collection device is characterized in that the net fixing ring (101) comprises a fixing part and a clamp, the fixing part is connected with a flow meter (102), the fixing part is hollow and cylindrical, the outer wall of the fixing part is connected with a rubber zipper tail part (108), and the zipper tail part (108) is connected with a zipper clamping head (107).

6. The novel shallow sea plankton layered collection device is characterized in that threads are arranged inside the upper valve (103), and the upper valve (103) is in threaded connection with the water storage tank (104).

7. The novel shallow sea plankton layered collection device is characterized in that a water sampler (3) is fixed on the outer wall of a grid (1) through a fixing piece (12), the rear end of the water sampler (3) is connected with a control box (16), the upper end of the water sampler (3) is connected with an upper cover (19), the lower end of the water sampler (3) is connected with a lower cover (15), the rear end of the water sampler (3) is connected with a telescopic mechanism, the lower end of the water sampler (3) is connected with a water outlet pipe (14), and the surface of the water outlet pipe (14) is provided with a pipe clamp (13).

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