CN109526895B - Device and method for collecting plankton in variable water layer - Google Patents
Device and method for collecting plankton in variable water layer Download PDFInfo
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- CN109526895B CN109526895B CN201811372072.3A CN201811372072A CN109526895B CN 109526895 B CN109526895 B CN 109526895B CN 201811372072 A CN201811372072 A CN 201811372072A CN 109526895 B CN109526895 B CN 109526895B
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- plankton
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K80/00—Harvesting oysters, mussels, sponges or the like
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
Abstract
The invention discloses a variable water layer plankton collection device and a variable water layer plankton collection method, wherein the variable water layer plankton collection device comprises a vertical column, a net barrel, a plankton inlet, a flip cover and a heavy punch, wherein the net barrel is arranged on the outer side of the vertical column, and the cross section of the net barrel is circular; the survey ship is fixedly connected with the two ends of the upright post through the connecting bracket; the net barrel comprises an inner barrel, an outer barrel arranged outside the inner barrel, an upper cover plate and a lower cover plate, the outer barrel comprises a plurality of vertical supporting rods and plankton binding nets arranged on the vertical supporting rods, and the plankton inlets are positioned on the plankton binding nets; the upper part of the inner cylinder extends out of the upper cover plate, a plurality of radiation rods which are distributed radially are arranged on the upper cover plate, and a bowl-shaped container is arranged at the outer end of each radiation rod. The invention has the characteristic of collecting plankton in each water layer.
Description
Technical Field
The invention relates to the technical field of marine ecological research, in particular to a water layer-changing plankton collecting device and method capable of conveniently and accurately collecting planktons in different water layers.
Background
Plankton is the main component of ecosystem, and the effective collection of plankton can promote the research of ecology more. At present, plankton is mainly collected by a horizontal plankton net and a vertical plankton net, the vertical plankton net cannot ensure that all plankton species in the ocean are collected due to accidental factors, the horizontal collection net is only limited to the collection of surface plankton, the collection of subsurface plankton and deep plankton is insufficient, and some plankton species move in a middle-layer water area and a near-bottom water area for a long time.
Disclosure of Invention
The invention aims to overcome the defect that plankton in the prior art can not be simultaneously collected in each water layer, and provides a device and a method for collecting plankton in a water-changing layer, which can conveniently and accurately collect plankton in different water layers.
In order to achieve the purpose, the invention adopts the following technical scheme:
a variable water layer plankton collecting device comprises a vertical column, a net barrel, a plankton inlet, a flip cover and a heavy punch, wherein the vertical column is vertically arranged, the net barrel is arranged on the outer side of the vertical column, the cross section of the net barrel is circular, the plankton inlet is arranged on the net barrel, the flip cover is arranged on the plankton inlet, and the heavy punch is arranged at the lower end of the vertical column; the survey ship is fixedly connected with the two ends of the upright post through the connecting bracket; the net barrel comprises an inner barrel, an outer barrel arranged outside the inner barrel, an upper cover plate and a lower cover plate, the outer barrel comprises a plurality of vertical supporting rods and plankton binding nets arranged on the vertical supporting rods, and the plankton inlets are positioned on the plankton binding nets; outside inner tube upper portion stretched out the upper cover plate, be equipped with the radiation pole that a plurality of is radial distribution on the upper cover plate, the outer end of every radiation pole all is equipped with the container of bowl form, the opening of each container is clockwise or anticlockwise and arranges, the inner tube passes through the internal thread and is connected with the external screw thread cooperation of locating on the stand outer peripheral face, every radiation pole all is connected with a net section of thick bamboo, the mesh size of plankton constraint net is less than the size of the plankton that will gather.
The survey ship is fixedly connected with the upright column, so that the upright column is always kept in a vertical state, each container can rotate clockwise or anticlockwise relative to the upright column under the impact of water flow, the net cage can move up and down relative to the upright column, plankton is smoothly collected into the net cylinder in the rotating process of the net cylinder, plankton in each water layer can be collected, and reliable technical support is provided for marine ecological research.
Preferably, an annular plate is arranged above the upper cover plate, an annular groove is formed in the outer peripheral surface of the upper portion of the inner barrel, and the inner peripheral surface of the annular plate is connected with the annular groove in a sliding mode through 3 connecting strips; the lower surface of the annular plate is provided with an annular rack, each radiation rod is provided with a plurality of gear teeth matched with the annular rack, the outer peripheral surface of the annular plate is provided with a peripheral rack, the upper cover plate is provided with a motor, a rotating shaft of the motor is connected with a gear, and the gear is meshed with the peripheral rack; the outer cylinder is also provided with a plankton auxiliary inlet, and the plankton auxiliary inlet is provided with an auxiliary flip cover; the opening directions of the flip cover and the auxiliary flip cover are opposite, the inner end of each radiation rod is rotatably connected with the inner cylinder through a sleeve, and each radiation rod is rotatably connected with the upper end of the outer cylinder through a sleeve ring; the upper part and the lower part of the upright post are respectively provided with a first in-place switch and a second in-place switch, and the first in-place switch, the second in-place switch and the motor are electrically connected with the controller.
Preferably, the turning cover is in an arc shape matched with the shape of the outer barrel, one side of the turning cover is rotatably connected with the plankton inlet, the other side of the turning cover is provided with a first arc-shaped plate, and the first arc-shaped plate and the turning cover form a wave-shaped plate; the auxiliary flip cover is arc-shaped and matched with the outer barrel in shape, one side of the auxiliary flip cover is rotatably connected with the auxiliary plankton inlet, a second arc-shaped plate is arranged on the other side of the auxiliary flip cover, and the second arc-shaped plate and the auxiliary flip cover form a wave-shaped plate.
The setting of first arc and second arc can increase flip and supplementary flip pressure when closing, can increase flip and supplementary flip open range.
Preferably, the upper part and the lower part of the upright post are respectively provided with a baffle, the first in-place switch and the second in-place switch are respectively positioned on 2 baffles, and a floater is arranged above the baffles on the upper part of the upright post and is in a circular plate shape. The float ensures that the upper end of the upright post is always positioned on the water surface.
A method for changing a water layer plankton collecting device further comprises the following steps:
in the initial state, the openings of the containers are arranged clockwise, and the net cylinders are positioned at the upper parts of the upright posts;
(5-1) in the advancing process of the survey ship, the impact force of water flow drives each container to rotate, so that the inner cylinder rotates relative to the upright post and moves downwards, the auxiliary turning cover is opened in the rotating and rising process of the net cylinder, planktons enter the plankton inlet, and meanwhile, the auxiliary turning cover is pressed and is in closed connection with the plankton auxiliary inlet under the action of the water flow;
(5-2) when the second in-place switch detects an in-place signal of the net drum, the controller controls the motor to work to enable the annular plate to rotate, the annular rack drives the radiation rods to rotate, and the controller controls the motor to stop working after the openings of the containers are arranged in the anticlockwise direction;
(5-3) in the advancing process of the survey ship, the impact force of water flow drives each container to rotate, so that the inner cylinder rotates relative to the upright post and moves upwards, and planktons enter the plankton auxiliary inlet in the rotating and rising process of the net cylinder; meanwhile, the turnover cover is pressed and connected with the plankton inlet in a closed manner under the action of water flow;
(5-4) when the first in-place switch detects an in-place signal of the net drum, the controller controls the motor to work to enable the annular plate to rotate, the annular rack drives the radiation rods to rotate, and the controller controls the motor to stop working after the openings of the containers are arranged clockwise; and (5) carrying out a later step.
Therefore, the invention has the following beneficial effects: the net barrel can be lifted automatically, plankton on each water layer can be collected, and reliable technical support is provided for marine ecological research.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a top view of the upper cover plate, inner cylinder and individual radiant bars of the present invention;
FIG. 3 is a top view of FIG. 2 with the addition of gears and an annular plate;
fig. 4 is a functional block diagram of the present invention.
In the figure: the device comprises a vertical column 1, a net barrel 2, a plankton inlet 3, a flip cover 4, a heavy hammer 5, an annular plate 6, a gear 7, a sleeve 8, a lantern ring 9, an inner barrel 21, an outer barrel 22, an upper cover plate 23, a first arc-shaped plate 41, a baffle plate 42, a floater 43, a connecting strip 61, a first arrival switch 101, a second arrival switch 102, a controller 103, a motor 104, a vertical supporting rod 221, a plankton binding net 222, a radiation rod 231 and a container 232.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
The embodiment shown in fig. 1 is a water layer-changing plankton collecting device, which comprises a vertical column 1 arranged vertically, a net barrel 2 arranged outside the vertical column and having a circular cross section, a plankton inlet 3 arranged on the net barrel, a flip cover 4 arranged on the plankton inlet, and a heavy hammer 5 arranged at the lower end of the vertical column; the survey ship is fixedly connected with the two ends of the upright post through the connecting bracket; the net cylinder comprises an inner cylinder 21, an outer cylinder 22 arranged outside the inner cylinder, an upper cover plate 23 and a lower cover plate, the outer cylinder comprises a plurality of vertical supporting rods 221 and plankton binding nets 222 arranged on the vertical supporting rods, and plankton inlets are positioned on the plankton binding nets; outside inner tube upper portion stretched out the upper cover plate, be equipped with 3 radiation rods 231 that are radial distribution on the upper cover plate, the outer end of every radiation rod all is equipped with the container 232 of bowl form, the opening of each container is clockwise or anticlockwise and arranges, the inner tube passes through the internal thread and is connected with the external screw thread cooperation of locating on the stand outer peripheral face, every radiation rod all is connected with a net section of thick bamboo, the mesh size of plankton constraint net is less than the size of the plankton that will gather.
As shown in fig. 2 and 3, an annular plate 6 is arranged above the upper cover plate, an annular groove is arranged on the outer peripheral surface of the upper part of the inner cylinder, and the inner peripheral surface of the annular plate is in sliding connection with the annular groove through 3 connecting strips 61; the lower surface of the annular plate is provided with an annular rack, each radiation rod is provided with a plurality of gear teeth matched with the annular rack, the outer peripheral surface of the annular plate is provided with a peripheral rack, the upper cover plate is provided with a motor 104, a rotating shaft of the motor is connected with a gear 7, and the gear is meshed with the peripheral rack; the outer cylinder is also provided with a plankton auxiliary inlet, and the plankton auxiliary inlet is provided with an auxiliary flip cover; the opening directions of the flip cover and the auxiliary flip cover are opposite, the inner end of each radiation rod is rotatably connected with the inner cylinder through a sleeve 8, and each radiation rod is rotatably connected with the upper end of the outer cylinder through a lantern ring 9; the upper part and the lower part of the upright post are respectively provided with a first in-place switch 101 and a second in-place switch 102, as shown in fig. 4, and the first in-place switch, the second in-place switch and the motor are all electrically connected with a controller 103.
As shown in fig. 1, the turning cover is in an arc shape matched with the shape of the outer cylinder, one side of the turning cover is rotatably connected with the plankton inlet, the other side of the turning cover is provided with a first arc-shaped plate 41, and the first arc-shaped plate and the turning cover form a wave-shaped plate; the auxiliary flip cover is arc-shaped and matched with the outer barrel in shape, one side of the auxiliary flip cover is rotatably connected with the auxiliary plankton inlet, a second arc-shaped plate is arranged on the other side of the auxiliary flip cover, and the second arc-shaped plate and the auxiliary flip cover form a wave-shaped plate.
The upper part and the lower part of the upright post are respectively provided with a baffle 42, the first in-place switch and the second in-place switch are respectively positioned on 2 baffles, and a floater 43 is arranged above the baffle on the upper part of the upright post and is in a circular plate shape.
A method for changing a water layer plankton collecting device further comprises the following steps:
in the initial state, the openings of the containers are arranged clockwise, and the net cylinders are positioned at the upper parts of the upright posts;
(5-1) in the advancing process of the survey ship, the impact force of water flow drives each container to rotate, so that the inner cylinder rotates relative to the upright post and moves downwards, the flip cover is opened in the rotating and descending process of the net cylinder, planktons enter the plankton inlet, and meanwhile, the auxiliary flip cover is pressed and connected with the plankton auxiliary inlet in a closed mode under the action of the water flow;
(5-2) when the second in-place switch detects an in-place signal of the net drum, the controller controls the motor to work to enable the annular plate to rotate, the annular rack drives the radiation rods to rotate, and the controller controls the motor to stop working after the openings of the containers are arranged in the anticlockwise direction;
(5-3) in the advancing process of the survey ship, the impact force of water flow drives each container to rotate, so that the inner cylinder rotates relative to the upright post and moves upwards, the auxiliary turnover cover is opened in the rotating and rising process of the net cylinder, and plankton enters the plankton auxiliary inlet; meanwhile, the turnover cover is pressed and connected with the plankton inlet in a closed manner under the action of water flow;
(5-4) when the first in-place switch detects an in-place signal of the net drum, the controller controls the motor to work to enable the annular plate to rotate, the annular rack drives the radiation rods to rotate, and the controller controls the motor to stop working after the openings of the containers are arranged clockwise; and (5) carrying out a later step.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (5)
1. A variable water layer plankton collection device is characterized by comprising a vertical column (1) which is vertically arranged, a net barrel (2) which is arranged on the outer side of the vertical column and has a circular cross section, a plankton inlet (3) which is arranged on the net barrel, a flip cover (4) which is arranged on the plankton inlet, and a heavy punch (5) which is arranged at the lower end of the vertical column; the survey ship is fixedly connected with the two ends of the upright post through the connecting bracket; the net barrel comprises an inner barrel (21), an outer barrel (22) arranged outside the inner barrel, an upper cover plate (23) and a lower cover plate, the outer barrel comprises a plurality of vertical supporting rods (221) and plankton restraint nets (222) arranged on the vertical supporting rods, and the plankton inlets are positioned on the plankton restraint nets; outside inner tube upper portion stretched out the upper cover plate, be equipped with radiation pole (231) that a plurality of is radial distribution on the upper cover plate, the outer end of every radiation pole all is equipped with container (232) of bowl form, the opening of each container is clockwise or anticlockwise and arranges, the inner tube passes through the internal thread and is connected with the external screw thread fit on locating the stand outer peripheral face, every radiation pole all is connected with a net section of thick bamboo, the mesh size of plankton constraint net is less than the size of the plankton that will gather.
2. The variable water layer plankton collection device according to claim 1, wherein an annular plate (6) is arranged above the upper cover plate, an annular groove is arranged on the outer peripheral surface of the upper part of the inner cylinder, and the inner peripheral surface of the annular plate is in sliding connection with the annular groove through 3 connecting strips (61); the lower surface of the annular plate is provided with an annular rack, each radiation rod is provided with a plurality of gear teeth matched with the annular rack, the outer peripheral surface of the annular plate is provided with a peripheral rack, the upper cover plate is provided with a motor (104), a rotating shaft of the motor is connected with a gear (7), and the gear is meshed with the peripheral rack; the outer cylinder is also provided with a plankton auxiliary inlet, and the plankton auxiliary inlet is provided with an auxiliary flip cover; the opening directions of the flip cover and the auxiliary flip cover are opposite, the inner end of each radiation rod is rotatably connected with the inner cylinder through a sleeve (8), and each radiation rod is rotatably connected with the upper end of the outer cylinder through a sleeve ring (9); the upper part and the lower part of the upright post are respectively provided with a first in-place switch (101) and a second in-place switch (102), and the first in-place switch, the second in-place switch and the motor are electrically connected with a controller (103).
3. The variable water layer plankton collection device according to claim 2, wherein the flip cover is in an arc shape matched with the shape of the outer cylinder, one side of the flip cover is rotatably connected with the plankton inlet, the other side of the flip cover is provided with a first arc-shaped plate (41), and the first arc-shaped plate and the flip cover form a wave-shaped plate; the auxiliary flip cover is arc-shaped and matched with the outer barrel in shape, one side of the auxiliary flip cover is rotatably connected with the auxiliary plankton inlet, a second arc-shaped plate is arranged on the other side of the auxiliary flip cover, and the second arc-shaped plate and the auxiliary flip cover form a wave-shaped plate.
4. The variable water layer plankton collection device according to claim 2 or 3, wherein the upper part and the lower part of the upright post are respectively provided with a baffle (42), the first in-place switch and the second in-place switch are respectively positioned on 2 baffles, and a floater (43) is arranged above the baffle on the upper part of the upright post and is in a circular plate shape.
5. The method for collecting plankton in a water-changing layer according to claim 2, further comprising the following steps:
in the initial state, the openings of the containers are arranged clockwise, and the net cylinders are positioned at the upper parts of the upright posts;
(5-1) in the advancing process of the survey ship, the impact force of water flow drives each container to rotate, so that the inner cylinder rotates relative to the upright post and moves downwards, the flip cover is opened in the rotating and descending process of the net cylinder, planktons enter the plankton inlet, and meanwhile, the auxiliary flip cover is pressed and connected with the plankton auxiliary inlet in a closed mode under the action of the water flow;
(5-2) when the second in-place switch detects an in-place signal of the net drum, the controller controls the motor to work to enable the annular plate to rotate, the annular rack drives the radiation rods to rotate, and the controller controls the motor to stop working after the openings of the containers are arranged in the anticlockwise direction;
(5-3) in the advancing process of the survey ship, the impact force of water flow drives each container to rotate, so that the inner cylinder rotates relative to the upright post and moves upwards, the auxiliary turnover cover is opened in the rotating and rising process of the net cylinder, and plankton enters the plankton auxiliary inlet; meanwhile, the turnover cover is pressed and connected with the plankton inlet in a closed manner under the action of water flow;
(5-4) when the first in-place switch detects an in-place signal of the net drum, the controller controls the motor to work to enable the annular plate to rotate, the annular rack drives the radiation rods to rotate, and the controller controls the motor to stop working after the openings of the containers are arranged clockwise; go back to step (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811372072.3A CN109526895B (en) | 2018-11-16 | 2018-11-16 | Device and method for collecting plankton in variable water layer |
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| CN201811372072.3A CN109526895B (en) | 2018-11-16 | 2018-11-16 | Device and method for collecting plankton in variable water layer |
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| CN109526895A CN109526895A (en) | 2019-03-29 |
| CN109526895B true CN109526895B (en) | 2021-07-16 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109997809B (en) * | 2019-04-10 | 2021-07-27 | 华南农业大学 | Enrichment and collection device and collection method for daphnia magna |
| CN112167190B (en) * | 2020-09-29 | 2021-09-28 | 北部湾大学 | Water layer-changing plankton collection device |
| CN113373882A (en) * | 2021-05-31 | 2021-09-10 | 海南大学 | Collection device suitable for brook plankton |
| CN114101140B (en) * | 2021-12-22 | 2022-09-20 | 杭州植物园(杭州西湖园林科学研究院) | Pomacea canaliculata egg trapping intelligent rod with egg mass collecting function |
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| US3729855A (en) * | 1971-12-09 | 1973-05-01 | S Niskin | Apparatus for sequentially deploying specimen collectors at selected depths in a body of water |
| CN205161630U (en) * | 2015-08-07 | 2016-04-20 | 福建省水产研究所 | Philippine clam son full water layer sampling device of larva that floats of growing seedlings |
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| CN108562457A (en) * | 2018-07-27 | 2018-09-21 | 苏州泰富金电子科技有限公司 | A kind of water quality detection mobile sampler and its water quality detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3729855A (en) * | 1971-12-09 | 1973-05-01 | S Niskin | Apparatus for sequentially deploying specimen collectors at selected depths in a body of water |
| CN205161630U (en) * | 2015-08-07 | 2016-04-20 | 福建省水产研究所 | Philippine clam son full water layer sampling device of larva that floats of growing seedlings |
| CN205390058U (en) * | 2016-03-14 | 2016-07-27 | 国家海洋局烟台海洋环境监测中心站 | Simple and easy marine environment investigation plankton layering sampling device |
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