Multi-water-layer plankton sample collecting, concentrating and filtering device suitable for rivers

Abstract

The utility model relates to a multi-water-layer plankton sample collecting, concentrating and filtering device suitable for rivers, and relates to the technical field of biological sampling, the multi-water-layer plankton sample collecting, concentrating and filtering device comprises a collecting box and a floating plate used for supporting the collecting box in a floating mode, and a power mechanism used for pushing and steering the collecting box is arranged on the collecting box; the power mechanism comprises a pushing assembly and a steering assembly, the floating plate is provided with an adjusting assembly used for adjusting lifting of the collecting box, and the collecting box is provided with a collecting assembly used for collecting planktons in a layered mode. The collecting assembly comprises three collecting nets arranged on the outer side of the collecting box, the three collecting nets are arranged at equal intervals, and openings are formed in the inner sides of the three collecting nets. According to the plankton collecting device, the purpose of collecting planktons in water layers of different depths is achieved, the planktons in the water layers of different depths are prevented from being mixed together, the planktons in different water depths can be collected, and the positioning effect of the collecting device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of biological sampling, and in particular to a device for collecting, concentrating and filtering multi-layer plankton samples suitable for rivers. Background Art

[0002] Plankton refers to drifting organisms that live in water but lack the ability to move effectively and move mainly under the control of water currents. They are divided into phytoplankton and zooplankton. Plankton is the main component of the ecosystem. The number and species of plankton indicate the biodiversity and productivity of the water body. Therefore, the quantitative collection and analysis of plankton is an important aspect of aquatic resource enhancement, aquatic biodiversity protection and aquatic productivity research. At the same time, plankton is very sensitive to environmental changes and is an indicator organism for measuring water quality. Its abundance and community composition are important indicators reflecting the eutrophication of water bodies.

[0003] In order to process the plankton in the river, it is usually necessary to use a plankton collection device to collect the plankton in the river. For example, the Chinese patent with the announcement number CN220191882U in the relevant technology proposes a plankton qualitative collection net, which has the advantage that when the filter net frame and the support frame are installed, when the plankton is collected through the filter net, the larger dead grass and fallen leaves are blocked by the filter net to avoid blockage when discharged through the discharge pipe later.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: currently, plankton sampling still basically uses conventional sampling nets. Since the sampling net port is always in an open state, when collecting plankton from water layers of different depths, plankton from multiple water layers will be mixed, and the staff needs to manually clean it up afterwards, which affects the accuracy of plankton monitoring, and plankton from different water depths cannot be collected, which increases the labor intensity of the staff, reduces work efficiency, is inconvenient to use, cannot meet actual use needs, and reduces the use efficiency and effect of the plankton collection device. Utility Model Content

[0005] In order to collect plankton at different depths in river water and solve the problem that the prior art cannot collect plankton at different water depths and has low sampling efficiency, the present application provides a multi-layer plankton sample collection, concentration and filtration device suitable for rivers.

[0006] The present application provides a multi-layer plankton sample collection, concentration and filtration device suitable for rivers, which adopts the following technical solutions:

[0007] A multi-layer plankton sample collection, concentration and filtration device suitable for rivers, comprising a collection box and a floating board for floating and supporting the collection box, the collection box is provided with a power mechanism for pushing and steering the collection box, the power mechanism comprises a pushing component and a steering component, the floating board is provided with an adjustment component for lifting and lowering the collection box, and the collection box is provided with a collection component for collecting plankton in layers;

[0008] The collection assembly includes three collection nets arranged on the outside of the collection box, the three collection nets are arranged at equal distances, the inner sides of the three collection nets are all provided with openings, and two partition plates are provided on the inner side of the collection box, and the two partition plates are respectively located below the openings of the top collection net and the middle collection net.

[0009] By adopting the above technical scheme, plankton in the river can be collected and stored through a collection box, the space inside the collection box can be divided by two partitions, and the inside of the collection box can be divided into three spaces, respectively collecting plankton in the upper layer, middle layer and deep layer, and three collection nets can be used to collect plankton in the upper layer, middle layer and deep layer of the river, respectively, to avoid mixing plankton in the upper layer, middle layer and deep layer of the river.

[0010] The collection box can be raised and lowered by the adjustment component so that the collection box and three collection nets can collect plankton in the upper, middle and deep layers of the river respectively; the azimuth angle of the collection box can be adjusted by the steering component, and the angle of the collection box can be adjusted according to the location of the plankton in the river so as to improve the effect of the collection box on plankton collection; the collection box can be driven to move quickly in the river by the pushing component so as to increase the speed of plankton collection by the collection box and the three collection nets; the plankton in the upper, middle and deep layers of the river can be collected by the collecting component, and filtering can be performed when collecting plankton to prevent large dead grass and fallen leaves from entering the inside of the collection box when collecting plankton.

[0011] Optionally, the adjustment component includes a drive box fixed to the top of the floating board, a bidirectional motor is arranged on the inner side of the drive box, the output shafts on the left and right sides of the bidirectional motor are provided with threaded rods, the outer sides of the two threaded rods are threadedly connected with threaded blocks, the bottoms of the two threaded blocks are provided with limiting blocks, the bottoms of the two limiting blocks are provided with fixed blocks, the inner sides of the two fixed blocks are hinged with U-shaped plates, the outer sides of the two U-shaped plates are hinged with two connecting blocks, the two connecting blocks on the left are fixed to the top of the left side of the collection box, and the two connecting blocks on the right are fixed to the top of the right side of the collection box.

[0012] By adopting the above technical scheme, the two threaded rods can be driven to rotate respectively by the bidirectional motor, which will then drive the two threaded blocks, the two limiting blocks and the two fixed blocks to move relative to or away from each other. Because the two U-shaped plates are respectively hinged to the two fixed blocks and the two connecting blocks, when the two fixed blocks move relative to or away from each other, the connection and cooperation between the two fixed blocks, the two U-shaped plates and the two connecting blocks can drive the collection box, the power box and the three collection nets to move up and down in turn, and the collection box and the three collection nets can be raised and lowered to facilitate the collection box and the three collection nets to be adjusted to different depths in the river water to collect plankton.

[0013] Optionally, the pushing assembly includes a power box arranged below the collection box, an electric motor is arranged on the inner side of the power box, a driving shaft is arranged on the output shaft of the electric motor, a driving wheel is arranged on the outer side of the driving shaft, a transmission belt is connected to the outer side of the driving wheel for transmission, a driven wheel is connected to the inner side of the transmission belt for transmission, a support shaft is arranged on the inner side of the driven wheel, and pushing paddles are arranged on the outer sides of the driving shaft and the support shaft.

[0014] By adopting the above technical solution, the electric motor can drive the driving shaft, the active wheel, the transmission belt, the driven wheel and the supporting shaft to rotate in sequence. When the driving shaft and the supporting shaft rotate, they will respectively drive the two propulsion paddles to rotate, and then the rotation of the two propulsion paddles in the river water can push the collection box to move in the river water, so that the collection box can quickly approach the plankton and collect the plankton.

[0015] Optionally, the steering assembly includes a first bevel gear fixed to the outside of the drive shaft, a second bevel gear is movably engaged with the outside of the first bevel gear, an electric push rod is provided at the bottom of the second bevel gear, a movable rod is provided at the bottom end of the electric push rod, and a steering paddle is provided at the bottom end of the movable rod.

[0016] By adopting the above technical solution, the second bevel gear can be driven to move upward by the electric push rod, so that the second bevel gear and the first bevel gear are in a meshing state. Therefore, when the driving shaft drives the first bevel gear to rotate, it will also drive the second bevel gear, the electric push rod, the movable rod and the steering paddle to rotate in turn. When the steering paddle rotates, the collection box and the power box can be steered, and the steering angle of the collection box can be adjusted according to the location of the plankton to ensure the effect of plankton collection.

[0017] Optionally, the collection component includes a support frame fixed to the outside of the collection box, an electric telescopic rod is provided on the outside of the support frame, and a movable door is provided on the outside of the electric telescopic rod, the number of the support frame, the electric telescopic rod and the movable door are three groups, the number of each group of the support frame, the electric telescopic rod and the movable door are two, and the two movable doors in each group are movably fitted together, three groups of feed holes are opened on the left side of the collection box, and the three groups of feed holes are evenly distributed on the left side of the collection box, the top group of feed holes is located above the top partition plate, the middle group of feed holes is located between the top partition plate and the bottom partition plate, and the bottom group of feed holes is located below the bottom partition plate.

[0018] By adopting the above technical solution, the movable door can be driven to move forward and backward by the electric telescopic rod, so that the two movable doors of each group can be moved relative to or away from each other, and the three groups of feed ports can be opened or closed, so that plankton can enter the inner side of the collection box through the designated feed ports for collection, and the plankton can be filtered through the feed hole to prevent large dead grass and fallen leaves from entering the inner side of the collection box, and the feed hole can be scraped and brushed by the forward and backward movement of the movable door to prevent dead grass and fallen leaves from clogging the feed hole.

[0019] Optionally, the left sides of the three collection nets are movably connected with connecting plates, the three connecting plates are movably connected to the collection box, the right side of the collection box is provided with three connecting holes, the inner sides of the three connecting plates are provided with fixing holes, the three connecting holes correspond to the three fixing holes respectively, the openings of the three collection nets correspond to the three fixing holes respectively, and three guide plates are arranged on the inner side of the collection box, and the three guide plates are respectively located above the openings of the three collection nets.

[0020] By adopting the above technical scheme, the plankton inside the collection box can be introduced into the collection net for collection through the guide plate, a fixing hole is set on the inner side of the connecting plate, and a connecting hole is set on the right side of the collection box, so that the plankton inside the collection box can be introduced into the collection net for collection, and the connecting plate and the collection net can be removed from the collection box to facilitate the processing of the collected plankton inside the collection net.

[0021] Optionally, a floating ball is arranged on the top of the floating plate, and the number of the floating balls is eight. A protective frame is arranged on the inner side of the driving box, and the protective frame is U-shaped. The bidirectional motor is fixed on the inner side of the protective frame.

[0022] By adopting the above technical solution, the collection box is placed in the river water, and the collection box can be floated and supported in the river water by the floating board. The buoyancy of the floating board can be enhanced by multiple floating balls, so as to avoid the collection box and three collection nets from sinking to the bottom of the river and becoming unable to move due to excessive gravity when collecting plankton.

[0023] Optionally, a flash light, a locator and an intelligent controller are arranged on the top of the driving box, a smart camera is arranged on the top of the collection box, a transparent cover is movably connected to the top of the collection box, the smart camera is located on the inner side of the transparent cover, a distance sensor is arranged on the top of the transparent cover, and the flash light, locator, smart camera, distance sensor, bidirectional motor, motor, electric push rod and electric telescopic rod are all electrically connected to the intelligent controller.

[0024] By adopting the above technical scheme, the intelligent controller can time-drive the flash, locator, intelligent camera, distance sensor, bidirectional motor, motor, electric push rod and electric telescopic rod, and can transmit and store the data of the locator, intelligent camera and distance sensor. The plankton in the river water can be monitored by the intelligent camera, and the position of the plankton and the direction of the plankton drifting with the river water can be located by the locator. The distance sensor can measure the current distance between the collection box and the floating board, so that the staff can know the depth of the plankton currently collected by the collection box. The flash can display the current position of the floating board and the collection box, so that the staff can know the specific position of the floating board and the collection box in the river water at night. The intelligent controller can transmit the working conditions to the staff's operation panel in real time to facilitate the staff to remotely control the collection box to collect plankton throughout the process.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. When the collection box needs to be raised and lowered, the two threaded rods can be driven to rotate respectively through the bidirectional motor, which will then drive the two threaded blocks, the two limit blocks and the two fixed blocks to move relative to or away from each other. The collection box, the power box and the three collection nets can be driven to move up and down in turn through the connection and cooperation between the two fixed blocks, the two U-shaped plates and the two connecting blocks. The collection box and the three collection nets can be raised and lowered so that the collection box and the three collection nets can be adjusted to different depths in the river water. When the collection box needs to be pushed and moved, the driving shaft, the active wheel, the transmission belt, the driven wheel and the supporting shaft can be driven to rotate in turn through the motor. When the driving shaft and the supporting shaft rotate, the two pushing paddles will be driven to rotate respectively. The rotation of the two pushing paddles in the river water can push the collection box to move in the river water, so that the collection box can quickly approach the plankton for collection. When the collection box needs to be turned, the electric The push rod can drive the second bevel gear to move upward, so that the second bevel gear is in meshing state with the first bevel gear, so that when the driving shaft drives the first bevel gear to rotate, it will also drive the second bevel gear, the electric push rod, the movable rod and the steering paddle to rotate in turn. When the steering paddle rotates, the collection box and the power box can be steered, and the steering angle of the collection box can be adjusted according to the location of the plankton. The movable door can be driven to move forward and backward through the electric telescopic rod, so that the two movable doors of each group can move relative to or backward. The three groups of feed ports can be opened or closed, and the three groups of feed ports can be scraped and brushed respectively at the same time, so that the plankton can enter the collection box through the designated feed port for collection. The plankton can be filtered through the feed hole to prevent large dead grass and fallen leaves from entering the inner side of the collection box, and the feed hole can be scraped and brushed by the forward and backward movement of the movable door to prevent dead grass and fallen leaves from clogging the feed hole;

[0027] 2. The intelligent controller can be used to drive the flashlight, locator, smart camera, distance sensor, bidirectional motor, motor, electric push rod and electric telescopic rod in a timed manner, and can transmit and store the data of the locator, smart camera and distance sensor. The smart camera can be used to monitor the plankton in the river water, and the locator can be used to locate the position of the plankton and the direction in which the plankton drifts with the river water. The distance sensor can be used to measure the distance between the current collection box and the floating board, so that the staff can know how deep the collection box is currently collecting plankton. The flashlight can be used to display the current position of the floating board and the collection box, so that the staff can know the specific position of the floating board and the collection box in the river water at night. The intelligent controller can The working conditions are transmitted to the staff's operation panel in real time, which makes it convenient for the staff to remotely control the entire process of collecting plankton in the collection box. When the intelligent camera monitors the plankton in the river water, the position and depth of the plankton drifting in the river water are first located by the locator, and then the feeding hole of the collection box can be moved to the position of the plankton drifting by rotating the two propellers and the steering paddle. By calculating the depth of the plankton, the collection box can be raised and lowered by the adjustment component. According to the depth of the plankton in the water layer of the river water, the designated feeding hole of the collection box can be moved to the position flush with the plankton, and then the two propellers are rotated and pushed, so that the collection box can quickly approach the plankton, so that the plankton enters the collection box and the collection net through the feeding hole for collection;

[0028] 3. When it is necessary to collect plankton located in the upper layer of the river water, first open the top feed port through the two movable doors on the top, and by adjusting the lifting of the collection box, the plankton located in the upper layer can enter the inner side of the collection box through the top feed port, and the plankton in the upper layer can be introduced into the top collection net for collection through the guidance of the top guide plate. When it is necessary to collect plankton located in the middle layer of the river water, first open the middle feed port through the two movable doors in the middle, and by adjusting the lifting of the collection box, the plankton in the middle layer can enter the inner side of the collection box through the middle feed port, and the plankton in the middle layer can be introduced into the middle collection net for collection through the guidance of the middle guide plate. When it is necessary to collect plankton located in the deep layer of the river water First, the bottom feed port is opened through the two movable doors at the bottom. By adjusting the lifting of the collection box, the plankton in the deep layer can enter the inner side of the collection box through the bottom feed port, and the plankton in the deep layer can be introduced into the collection net at the bottom for collection through the guidance of the bottom guide plate. The connecting plate and the collection net can be disassembled from the collection box through the first screw to facilitate the processing of the plankton collected on the inner side of the collection net, thereby achieving the purpose of the collection device collecting plankton in water layers of different depths, avoiding the plankton in water layers of different depths from being mixed together, ensuring the accuracy of plankton monitoring, and being able to collect plankton at different water depths. The work efficiency is high, and the collection device is prevented from drifting with the water flow in the river, thereby improving the positioning effect of the collection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 A cross-sectional view of the connection structure of the collection box in the embodiment of the present application;

[0031] Figure 3 Left view of the connection structure of the collection box in the embodiment of the present application;

[0032] Figure 4 Right view of the connection structure of the collection box in the embodiment of the present application;

[0033] Figure 5 A top view of the connection structure of the collection box in the embodiment of the present application;

[0034] Figure 6 A top view of the power box connection structure in the embodiment of the present application;

[0035] Figure 7 Front view of the connection structure of the collection box in the embodiment of the present application;

[0036] Figure 8 Right view of the power box connection structure in the embodiment of the present application.

[0037] Figure numerals: 1, collection box; 2, drive box; 3, bidirectional motor; 4, threaded rod; 5, threaded block; 6, limit block; 7, fixed block; 8, U-shaped plate; 9, connecting block; 10, power box; 11, motor; 12, drive shaft; 13, driving wheel; 14, transmission belt; 15, driven wheel; 16, support shaft; 17, push paddle; 18, first bevel gear; 19, second bevel gear; 20, electric push rod; 21, movable rod; 22, rotating paddle; 23, support frame; 24, electric telescopic rod; 25, movable door; 26, connecting plate; 27, collection net; 28, partition plate; 29, guide plate; 30, floating plate; 31, floating ball; 32, flash light; 33, locator; 34, intelligent controller; 35, intelligent camera; 36, transparent cover; 37, protective frame; 38, first screw; 39, second screw; 40, third screw; 41, sliding block; 42, distance sensor. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-8 This application is described in further detail.

[0039] The present application discloses a multi-layer plankton sample collection, concentration and filtration device suitable for rivers, referring to Figure 1 and Figure 2 , including a collection box 1 and a floating board 30 for floating and supporting the collection box 1. The collection box 1 is provided with a power mechanism for pushing and steering the collection box 1, and the power mechanism includes a pushing component and a steering component. The floating board 30 is provided with an adjusting component for lifting and lowering the collection box 1. The collection box 1 is provided with a collecting component for collecting plankton in layers. The collecting component includes three collecting nets 27 arranged on the outside of the collection box 1. The three collecting nets 27 are arranged at equal distances. The inner sides of the three collecting nets 27 are all provided with openings. Two partition plates 28 are fixedly connected to the inner side of the collection box 1. The two partition plates 28 are respectively located below the openings of the top collection net 27 and the middle collection net 27.

[0040] The adjustment component includes a drive box 2 fixed to the top of the floating board 30, a bidirectional motor 3 is arranged on the inner side of the drive box 2, the output shafts on the left and right sides of the bidirectional motor 3 are fixedly connected with threaded rods 4, the outer sides of the two threaded rods 4 are threadedly connected with threaded blocks 5, the bottoms of the two threaded blocks 5 are fixedly connected with limiting blocks 6, the bottoms of the two limiting blocks 6 are fixedly connected with fixed blocks 7, the inner sides of the two fixed blocks 7 are hinged with U-shaped plates 8, the outer sides of the two U-shaped plates 8 are hinged with two connecting blocks 9, the two left connecting blocks 9 are fixed to the top of the left side of the collection box 1, the two right connecting blocks 9 are fixed to the top of the right side of the collection box 1, the two fixed blocks 7 and the two connecting blocks 9 are both U-shaped, the U-shaped plate 8 is movably connected to the fixed block 7 by a movable pin, the U-shaped plate 8 is movably connected to the connecting block 9 by a connecting pin, and the two fixed blocks 7 are movably fitted with the floating board 30.

[0041] Two limiting square holes are provided at the bottom of the driving box 2 and the inner side of the floating plate 30. The two limiting square holes on the inner side of the driving box 2 correspond to the two limiting square holes on the inner side of the floating plate 30 respectively. The two limiting square holes on the left are slidably connected to the limiting block 6 on the left. The inner sides of the two threaded blocks 5 are respectively provided with threaded holes that are compatible with the outer threads of the two threaded rods 4. By setting the limiting square holes and the limiting block 6, the threaded block 5 can be restricted from circular rotation.

[0042] The pushing component includes a power box 10 arranged below the collection box 1, an electric motor 11 is fixedly connected to the inner side of the power box 10, an output shaft of the electric motor 11 is fixedly connected to a driving shaft 12, an outer side of the driving shaft 12 is fixedly connected to a driving wheel 13, an outer side of the driving wheel 13 is transmission-connected to a transmission belt 14, an inner side of the transmission belt 14 is transmission-connected to a driven wheel 15, an inner side of the driven wheel 15 is fixedly connected to a supporting shaft 16, outer sides of the driving shaft 12 and the supporting shaft 16 are fixedly connected to a pushing paddle 17, four second screws 39 are threadedly connected to the inner side of the power box 10, top ends of the second screws 39 sequentially penetrate the power box 10 and the collection box 1 and extend to the inner side of the collection box 1, and the power box 10 is movably connected to the collection box 1.

[0043] By setting four second screws 39, the power box 10 can be stably installed under the collection box 1 to prevent the power box 10 from falling off during use. At the same time, the power box 10 can be removed from the bottom of the collection box 1. By setting the power box 10, the motor 11 can be hidden and stored to prevent the motor 11 from being corroded by liquid. Two fourth bearings are fixedly connected to the outer side of the support shaft 16, and the two fourth bearings are fixedly connected to the power box 10. The right end of the support shaft 16 passes through the fourth bearing, the driven wheel 15 and the power box 10 in sequence and extends to the left side of the propulsion paddle 17. The two propulsion paddles 17 are both located on the outer side of the power box 10. By setting two fourth bearings, the rotation stability of the support shaft 16 can be improved, and the support shaft 16 can be supported at the same time.

[0044] The steering assembly includes a first bevel gear 18 fixed to the outside of the drive shaft 12, and a second bevel gear 19 is movably engaged with the outside of the first bevel gear 18. An electric push rod 20 is fixedly connected to the bottom of the second bevel gear 19, and a movable rod 21 is fixedly connected to the bottom end of the electric push rod 20. The bottom end of the movable rod 21 is fixedly connected to a steering paddle 22. A third bearing is fixedly connected to the outside of the drive shaft 12, and the power box 10 is fixedly connected to the third bearing. The right end of the drive shaft 12 passes through the first bevel gear 18, the driving wheel 13 and the third bearing in sequence and extends to the left side of the pushing paddle 17. By setting the third bearing, the rotation stability of the drive shaft 12 can be improved. A second bearing is fixedly connected to the outside of the movable rod 21, and the power box 10 is fixedly connected to the second bearing. The bottom end of the movable rod 21 passes through the second bearing and the power box 10 in sequence and extends to the top of the steering paddle 22. By setting the second bearing, the rotation stability of the movable rod 21 can be improved.

[0045] The collection component includes a support frame 23 fixed to the outside of the collection box 1, and an electric telescopic rod 24 is fixedly connected to the outside of the support frame 23, and a movable door 25 is fixedly connected to the outside of the electric telescopic rod 24. The number of support frames 23, electric telescopic rods 24 and movable doors 25 is three groups, and the number of each group of support frames 23, electric telescopic rods 24 and movable doors 25 is two, and each group of two movable doors 25 is movably fitted together. The two groups of support frames 23 are respectively located on the front and back of the collection box 1, and the six support frames 23 are all L-shaped. The outsides of the six movable doors 25 are fixedly connected with sliding blocks 41. A sliding groove is opened on the left side of the collection box 1, and the sliding block 41 is slidably connected to the sliding groove. By setting the sliding block 41 and the sliding groove, the stability of the movable door 25 moving forward and backward can be guaranteed, and the movable door 25 can be limited to prevent the movable door 25 from completely separating from the collection box 1.

[0046] The left sides of the three collection nets 27 are all movably connected with the connecting plates 26, and the three connecting plates 26 are all movably connected with the collection box 1. The inner sides of the three connecting plates 26 are all threadedly connected with four first screws 38. The left ends of the first screws 38 successively penetrate the connecting plates 26 and the collection box 1 and extend to the inner side of the collection box 1. The right side of the collection box 1 is provided with three connecting holes, and the inner sides of the three connecting plates 26 are all provided with fixing holes. The three connecting holes correspond to the three fixing holes respectively. The openings of the three collection nets 27 correspond to the three fixing holes respectively. The left side of the collection box 1 There are three groups of feed holes, which are evenly distributed on the left side of the collection box 1. The top group of feed holes is located above the top partition plate 28, the middle group of feed holes is located between the top partition plate 28 and the bottom partition plate 28, and the bottom group of feed holes is located below the bottom partition plate 28. By setting the first screw 38, the connecting plate 26 and the collection net 27 can be stably connected to the collection box 1 to prevent the collection net 27 from falling off during use. At the same time, the connecting plate 26 and the collection net 27 can be removed from the collection box 1.

[0047] Three guide plates 29 are fixedly connected to the inner side of the collection box 1. The three guide plates 29 are respectively located above the openings of the three collection nets 27. The three guide plates 29 are all tiltedly arranged on the inner side of the collection box 1. The middle guide plate 29 and the bottom guide plate 29 are respectively fixedly connected to the bottoms of the two partition plates 28. Evenly distributed water holes are provided on the inner sides of the three guide plates 29 and the right side of the collection box 1. By providing the water holes, the liquid inside the collection box 1 can begin to flow out. A floating ball 31 is fixedly connected to the top of the floating plate 30. There are eight floating balls 31. A protective frame 37 is fixedly connected to the inner side of the drive box 2. The protective frame 37 is U-shaped. The bidirectional motor 3 is fixed on the inner side of the protective frame 37.

[0048] The outer sides of the two threaded rods 4 are fixedly connected with first bearings, and the two first bearings are fixedly connected to the drive box 2. The end of the threaded rod 4 away from the bidirectional motor 3 passes through the protective frame 37, the threaded block 5 and the first bearing in sequence and extends to the inner side of the first bearing. By setting the first bearing, the rotation stability of the threaded rod 4 can be improved, and the threaded rod 4 can be supported at the same time. By setting the protective frame 37, the bidirectional motor 3 can be supported, and the bidirectional motor 3 can be separated to prevent the bidirectional motor 3 from being eroded by liquid. By setting two first bearings, the rotation stability of the two threaded rods 4 can be improved, and the threaded rod 4 can be supported at the same time.

[0049] A flashlight 32, a locator 33 and an intelligent controller 34 are fixedly connected to the top of the drive box 2, a smart camera 35 is fixedly connected to the top of the collection box 1, a transparent cover 36 is movably connected to the top of the collection box 1, the smart camera 35 is located on the inner side of the transparent cover 36, the inner side of the transparent cover 36 is threadedly connected with a third screw 40, the number of the third screws 40 is four, the bottom end of the third screw 40 passes through the transparent cover 36 and the collection box 1 in sequence and extends to the inner side of the collection box 1, a distance sensor 42 is fixedly connected to the top of the transparent cover 36, the flashlight 32, the locator 33, the smart camera 35 and the distance sensor 42 are all electrically connected to the intelligent controller 34, a storage groove is provided at the bottom of the floating board 30, and the transparent cover 36 is located directly below the storage groove.

[0050] By setting the transparent cover 36, the smart camera 35 can be protected to prevent the smart camera 35 from being damaged by the impact of external force, and the transparent material does not affect the monitoring effect of the smart camera 35. By setting the third screw 40, the transparent cover 36 can be stably installed above the collection box 1 to prevent the transparent cover 36 from falling off during use. At the same time, the transparent cover 36 can be disassembled. By setting the U-shaped plate 8, the detection line of sight of the smart camera 35 can be prevented from being disturbed. By setting the storage groove, the transparent cover 36 and the distance sensor 42 can be stored to prevent the transparent cover 36 and the distance sensor 42 from colliding with the collection box 1 during lifting and lowering adjustment. The first bearing, the second bearing, the third bearing and the fourth bearing are all composed of four parts: an inner ring, an outer ring, a rolling element and a retaining frame. The function of the inner ring is to cooperate with the shaft and rotate with the shaft, and the function of the outer ring is to cooperate with the box to provide support.

[0051] The implementation principle of the multi-layer plankton sample collection, concentration and filtration device suitable for rivers in the present application embodiment is as follows:

[0052] (1) The collection box 1 is placed in the river water. The collection box 1 can be floated and supported in the river water by the floating board 30. The floating force of the floating board 30 can be enhanced by multiple floating balls 31, so as to avoid the collection box 1 and the three collection nets 27 from sinking to the bottom of the river water and being unable to move due to excessive gravity when collecting plankton;

[0053] (2) When the collection box 1 needs to be raised or lowered, the two threaded rods 4 can be driven to rotate by the bidirectional motor 3. Since the two threaded rods 4 are respectively threadedly connected to the two threaded blocks 5, when the two threaded rods 4 rotate, they will respectively drive the two threaded blocks 5, the two limiting blocks 6 and the two fixed blocks 7 to move relative to or away from each other. Since the two U-shaped plates 8 are respectively hinged to the two fixed blocks 7 and the two connecting blocks 9, when the two fixed blocks 7 move relative to or away from each other, the connection and cooperation between the two fixed blocks 7, the two U-shaped plates 8 and the two connecting blocks 9 can drive the collection box 1, the power box 10 and the three collection nets 27 to move up and down in turn, so that the collection box 1 and the three collection nets 27 can be raised or lowered, so as to adjust the collection box 1 and the three collection nets 27 to different depths in the river water.

[0054] (3) When the collection box 1 needs to be pushed and moved, the motor 11 can sequentially drive the driving shaft 12 and the driving wheel 13 to rotate. Because the driving wheel 13 and the driven wheel 15 are both connected to the transmission belt 14, when the driving wheel 13 rotates, it will sequentially drive the transmission belt 14, the driven wheel 15 and the supporting shaft 16 to rotate. When the driving shaft 12 and the supporting shaft 16 rotate, they will respectively drive the two propulsion paddles 17 to rotate. The rotation of the two propulsion paddles 17 in the river water can push the collection box 1 to move in the river water, so that the collection box 1 can quickly approach the plankton and collect the plankton.

[0055] (4) When the collection box 1 needs to be turned, the electric push rod 20 can drive the second bevel gear 19 to move upward, so that the second bevel gear 19 and the first bevel gear 18 are in a meshing state, so that when the driving shaft 12 drives the first bevel gear 18 to rotate, it will also drive the second bevel gear 19, the electric push rod 20, the movable rod 21 and the steering paddle 22 to rotate in turn. When the steering paddle 22 rotates, the collection box 1 and the power box 10 can be turned, and the steering angle of the collection box 1 can be adjusted according to the location of the plankton;

[0056] (5) When it is necessary to open or close the feed port of the collection box 1, the electric telescopic rod 24 can drive the movable door 25 to move forward and backward, so that the two movable doors 25 of each group can move relative to or away from each other. When the two movable doors 25 move away from each other or relative to each other, the three groups of feed ports can be opened or closed. Then, the three groups of feed ports can be opened or closed respectively by the three groups of electric telescopic rods 24 and the three groups of movable doors 25. At the same time, the three groups of feed ports can be scraped and brushed respectively, so that plankton can enter the inner side of the collection box 1 through the designated feed port for collection. The plankton can be filtered through the feed hole to prevent large dead grass and fallen leaves from entering the inner side of the collection box 1. The feed hole can be scraped and brushed by the forward and backward movement of the movable door 25 to prevent dead grass and fallen leaves from clogging the feed hole, thereby ensuring the effect of the collection box 1 in collecting plankton.

[0057] (6) The intelligent controller 34 can be used to drive the flashlight 32, the locator 33, the intelligent camera 35, the distance sensor 42, the bidirectional motor 3, the motor 11, the electric push rod 20 and the electric telescopic rod 24 in a timed manner, and can transmit and store the data of the locator 33, the intelligent camera 35 and the distance sensor 42. The plankton in the river water can be monitored by the intelligent camera 35, and the position of the plankton and the direction of the plankton drifting with the river water can be located by the locator 33. The distance sensor 42 can measure the current distance between the collection box 1 and the floating board 30, so that the staff can know how deep the collection box 1 is currently collecting plankton. The flashlight 32 can display the current position of the floating board 30 and the collection box 1, so that the staff can know the specific position of the floating board 30 and the collection box 1 in the river water at night. The intelligent controller 34 can transmit the working conditions to the staff's operation panel in real time to facilitate the staff to remotely control the entire process of collecting plankton by the collection box 1, thereby improving safety.

[0058] (7) When the smart camera 35 detects plankton in the river water, the position and depth of the plankton drifting in the river water are first located by the positioner 33, and then the feed hole of the collection box 1 can be moved to the position where the plankton drifts by rotating the two propulsion paddles 17 and the steering paddle 22. Moreover, by calculating the depth of the plankton, the collection box 1 can be raised and lowered by the adjustment component. According to the depth of the plankton in the river water, the feed hole designated by the collection box 1 can be moved to a position flush with the plankton. Then, by rotating and pushing the two propulsion paddles 17, the collection box 1 can be quickly approached by the plankton, so that the plankton enters the collection box 1 and the collection net 27 through the feed hole for collection;

[0059] (8) When it is necessary to collect the plankton located in the upper layer of the river water, the top feed port is first opened through the two movable doors 25 at the top, and the plankton located in the upper layer can be introduced into the inner side of the collection box 1 through the top feed port by adjusting the lifting and lowering of the collection box 1, and the plankton in the upper layer can be guided by the top guide plate 29 to be introduced into the top collection net 27 for collection;

[0060] (9) When it is necessary to collect the plankton in the middle layer of the river water, the middle feed port is first opened through the two movable doors 25 in the middle. By adjusting the lifting and lowering of the collection box 1, the plankton in the middle layer can be introduced into the inner side of the collection box 1 through the middle feed port, and the plankton in the middle layer can be guided by the middle guide plate 29 to be introduced into the collection net 27 in the middle for collection;

[0061] (10) When it is necessary to collect plankton located in the deep layer of the river water, the bottom feed port is first opened through the two movable doors 25 at the bottom. By adjusting the lifting and lowering of the collection box 1, the plankton located in the deep layer can enter the inner side of the collection box 1 through the bottom feed port, and can be guided by the bottom guide plate 29 to be introduced into the collection net 27 at the bottom for collection. The connecting plate 26 and the collection net 27 can be disassembled from the collection box 1 by the first screw 38, so as to facilitate the processing of the plankton collected inside the collection net 27.

[0062] Compared with the prior art, the overall structure is simple and easy to use, and the purpose of the collection device to collect plankton in water layers of different depths is achieved, and plankton in water layers of different depths is avoided from being mixed together. There is no need for staff to clean up, and the accuracy of plankton monitoring is ensured. Plankton in different water depths can be collected, and the labor intensity of staff is reduced. The work efficiency is high, and the collection device is avoided from drifting with the water flow in the river, and the positioning effect of the collection device is improved, the needs of actual use are met, and the use efficiency and effect of the collection device are improved.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-layer plankton sample collection, concentration and filtration device suitable for rivers, characterized by: Comprising a collection box (1) and a floating board (30) for floating and supporting the collection box (1), the collection box (1) being provided with a power mechanism for pushing and steering the collection box (1), the power mechanism comprising a pushing component and a steering component, the floating board (30) being provided with an adjusting component for adjusting the lifting and lowering of the collection box (1), and the collection box (1) being provided with a collecting component for collecting plankton in layers; The collection assembly comprises three collection nets (27) arranged outside a collection box (1), the three collection nets (27) being arranged at equal distances, the inner sides of the three collection nets (27) being provided with openings, and the inner side of the collection box (1) being provided with two partition plates (28), the two partition plates (28) being respectively located below the openings of the top collection net (27) and the middle collection net (27).

2. The multi-layer plankton sample collection, concentration and filtration device suitable for rivers according to claim 1, characterized in that: The adjustment assembly comprises a drive box (2) fixed to the top of the floating plate (30), a bidirectional motor (3) being arranged on the inner side of the drive box (2), the output shafts on the left and right sides of the bidirectional motor (3) being arranged with threaded rods (4), the outer sides of the two threaded rods (4) being threadedly connected with threaded blocks (5), the bottoms of the two threaded blocks (5) being arranged with limiting blocks (6), the bottoms of the two limiting blocks (6) being arranged with fixed blocks (7), the inner sides of the two fixed blocks (7) being hinged with U-shaped plates (8), the outer sides of the two U-shaped plates (8) being hinged with two connecting blocks (9), the two connecting blocks (9) on the left being fixed to the top of the left side of the collection box (1), and the two connecting blocks (9) on the right being fixed to the top of the right side of the collection box (1).

3. The multi-layer plankton sample collection, concentration and filtration device suitable for rivers according to claim 2, characterized in that: The pushing assembly comprises a power box (10) arranged below the collection box (1), an electric motor (11) being arranged inside the power box (10), a driving shaft (12) being arranged on the output shaft of the electric motor (11), a driving wheel (13) being arranged outside the driving shaft (12), a driving belt (14) being connected to the outside of the driving wheel (13), a driven wheel (15) being connected to the inside of the driving belt (14), a supporting shaft (16) being arranged inside the driven wheel (15), and a pushing paddle (17) being arranged on the outside of both the driving shaft (12) and the supporting shaft (16).

4. The multi-layer plankton sample collection, concentration and filtration device suitable for rivers according to claim 3, characterized in that: The steering assembly comprises a first bevel gear (18) fixed on the outside of the drive shaft (12); a second bevel gear (19) is movably meshed with the outside of the first bevel gear (18); an electric push rod (20) is arranged at the bottom of the second bevel gear (19); a movable rod (21) is arranged at the bottom end of the electric push rod (20); and a steering paddle (22) is arranged at the bottom end of the movable rod (21).

5. The multi-layer plankton sample collection, concentration and filtration device suitable for rivers according to claim 4, characterized in that: The collection assembly comprises a support frame (23) fixed to the outside of a collection box (1); an electric telescopic rod (24) is arranged on the outside of the support frame (23); a movable door (25) is arranged on the outside of the electric telescopic rod (24); the number of the support frame (23), the electric telescopic rod (24) and the movable door (25) is three groups; the number of each group of the support frame (23), the electric telescopic rod (24) and the movable door (25) is two; the two movable doors (25) in each group are movably fitted together; three groups of feed holes are opened on the left side of the collection box (1); the three groups of feed holes are evenly distributed on the left side of the collection box (1); the top group of feed holes is located above the top partition plate (28); the middle group of feed holes is located between the top partition plate (28) and the bottom partition plate (28); and the bottom group of feed holes is located below the bottom partition plate (28).

6. The multi-layer plankton sample collection, concentration and filtration device suitable for rivers according to claim 1, characterized in that: The left sides of the three collection nets (27) are movably connected to a connecting plate (26), and the three connecting plates (26) are movably connected to the collection box (1). The right side of the collection box (1) is provided with three connecting holes, and the inner sides of the three connecting plates (26) are provided with fixing holes, and the three connecting holes correspond to the three fixing holes respectively. The openings of the three collection nets (27) correspond to the three fixing holes respectively. The inner side of the collection box (1) is provided with three guide plates (29), and the three guide plates (29) are respectively located above the openings of the three collection nets (27).

7. The multi-layer plankton sample collection, concentration and filtration device suitable for rivers according to claim 2, characterized in that: A floating ball (31) is arranged on the top of the floating plate (30), and the number of the floating balls (31) is eight. A protective frame (37) is arranged on the inner side of the driving box (2), and the protective frame (37) is U-shaped. The bidirectional motor (3) is fixed on the inner side of the protective frame (37).

8. The multi-layer plankton sample collection, concentration and filtration device suitable for rivers according to claim 5, characterized in that: The top of the driving box (2) is provided with a flashlight (32), a locator (33) and an intelligent controller (34); the top of the acquisition box (1) is provided with an intelligent camera (35); the top of the acquisition box (1) is movably connected to a transparent cover (36); the intelligent camera (35) is located on the inner side of the transparent cover (36); the top of the transparent cover (36) is provided with a distance sensor (42); the flashlight (32), the locator (33), the intelligent camera (35), the distance sensor (42), the bidirectional motor (3), the motor (11), the electric push rod (20) and the electric telescopic rod (24) are all electrically connected to the intelligent controller (34).

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