A plankton multi-viewing angle in-situ detection device and detection method

Abstract

The present application discloses a multi-viewing angle in-situ detection device and detection method for plankton, wherein the detection device comprises a hollow shell, a camera device and a sample holding device, wherein the camera device and the sample holding device are located in the shell; the sample holding device comprises a base and a mounting seat, wherein the base is a hollow structure, the mounting seat is arranged in the inner cavity of the base, and an annular groove for accommodating fluid is enclosed between the mounting seat and the inner wall of the base; a rotating disk is rotatably connected to the lower end of the mounting seat, and a stirring portion extending in the annular groove is arranged on the rotating disk, and a driving source for driving the rotating disk to rotate forward or reverse is installed on the mounting seat. The present application can detect the dynamic conditions of plankton when it flows forward and reversely in a fluid.

Description

Technical Field

[0001] The present application relates to the technical field of plankton detection, and in particular to a multi-viewing angle in-situ plankton detection device and detection method. Background Art

[0002] Plankton mainly refers to drifting organisms that live in water but lack the ability to move effectively. They are divided into phytoplankton and zooplankton. The main purpose of plankton detection is to understand the types, quantity, or ecological activities of plankton in the water body, so as to provide a better scientific basis for water quality assessment.

[0003] The existing Chinese utility model patent document with authorization announcement number CN214011068U discloses a multi-view in-situ detection device for plankton, including a plankton detector, which includes a rectangular block, a camera, a control device and a clamping device. A rectangular slide is provided on the rectangular block, and the clamping device includes trachea one and trachea two. Through the cooperation of the control device and the clamping device, the rectangular slide can be blown to drive the flow of water, thereby driving the movement of plankton, and then the plankton is imaged and detected through the camera.

[0004] In this scheme, the flow of water is driven by blowing air through an air pipe. Since the blowing direction of the gas is fixed, the direction of the water flow is also fixed, and its adaptability to the detection of multi-dimensional dynamic conditions of plankton is low. Summary of the invention

[0005] In a first aspect, the present application provides a multi-view in-situ plankton detection device.

[0006] The present application adopts the following technical solution: a multi-view in-situ detection device for plankton, comprising a hollow shell, a camera device and a sample holding device, wherein the camera device and the sample holding device are located in the shell; the sample holding device comprises a base and a mounting seat, wherein the base is a hollow structure, the mounting seat is arranged in the inner cavity of the base, and an annular groove for accommodating a fluid is enclosed between the mounting seat and the inner wall of the base; a rotating disk is rotatably connected to the lower end of the mounting seat, a stirring portion extending in the annular groove is arranged on the rotating disk, and a driving source for driving the rotating disk to rotate forward or reverse is installed on the mounting seat;

[0007] The side wall of the mounting seat is provided with a plurality of accommodating grooves spaced apart along the circumference of the mounting seat, a blocking piece sliding along the radial direction of the annular groove is slidably arranged in the accommodating groove, and a pushing member is arranged in the mounting seat; the driving source can drive the pushing member to move so that the pushing member drives the blocking piece to slide, and a switching member is also installed in the mounting seat, and under the action of the switching member, the driving source can switch between driving the rotating disk to rotate and driving the pushing member to move.

[0008] By adopting the above technical solution, the driving source drives the rotating disk to rotate forward or reversely, and under the action of the stirring part, it can drive the fluid to flow forward or reversely in the annular groove, so that plankton with different flow directions can be detected, thereby improving the adaptability of detection.

[0009] After measuring the dynamic state of plankton when it flows forward, the dynamic state of plankton when the fluid flows backward is then detected. The driving source drives the pusher to move through the switching member, the rotating disk stops rotating, and the pusher moves to push the baffle to extend into the annular groove. Multiple baffles divide the fluid into multiple areas, so that the fluid can quickly stabilize. Then the driving source rotates in the reverse direction, causing the pusher to move in the reverse direction and driving the baffle to retract into the receiving groove. Then the driving source and the rotating disk are matched through the switching member to drive the rotating disk to rotate in the reverse direction. Therefore, the time for the fluid to stabilize can be greatly shortened, and the work efficiency can be improved.

[0010] Optionally, the mounting seat includes a connecting column and a block seat arranged on the side wall of the connecting column, a accommodating cavity is provided between the block seat and the connecting column, the block plate is installed on the block seat, and the rotating disk is rotatably connected to the lower end side wall of the connecting column; the driving source is installed on the connecting column, the rotating disk is provided with a first connecting member that can cooperate with the driving source, the pushing member is provided with a second connecting member that can cooperate with the driving source, and the switching member cooperates with the first connecting member and the second connecting member to switch the first connecting member or the second connecting member to connect with the driving source.

[0011] By adopting the above technical solution, the switching member cooperates with the first connecting member and the second connecting member. When the rotating disk needs to be driven to rotate, the first connecting member is driven to cooperate with the driving source; when the pushing member needs to be driven to move, the second connecting member is driven to cooperate with the driving source.

[0012] Optionally, the pushing member includes a rotating ring rotatably connected to the outer wall of the connecting column and a pushing cylinder threadedly connected to the outer wall of the rotating ring, the second connecting member is connected to the lower end of the rotating ring, and when the second connecting member and the driving source cooperate, the driving source drives the rotating ring to rotate through the second connecting member, the pushing cylinder has a truncated cone structure, and a guide structure for limiting the rotation of the pushing cylinder is provided between the pushing cylinder and the connecting column; an extension rod is provided on the baffle, the extension rod slides through the baffle seat and abuts against the side wall of the pushing cylinder, and a first elastic member is provided between the extension rod and the baffle seat, and when the pushing cylinder drives the baffle to slide into the annular groove, the first elastic member is compressed.

[0013] By adopting the above technical solution, the driving source cooperates with the second connecting member to drive the rotating ring to rotate, thereby driving the pushing cylinder to move up and down. The end of the extension rod abuts against the side wall of the pushing cylinder, so that the extension rod can be pushed to slide by the movement of the pushing cylinder, and when the pushing cylinder is reset, the baffle can be driven back into the accommodating groove under the action of the first elastic member.

[0014] Optionally, the connecting column is a hollow structure, and the driving source includes a bevel gear rotatably connected to the side wall of the connecting column, and a first element installed in the inner cavity of the connecting column and used to drive the bevel gear to rotate; the first connecting member is a first meshing gear ring slidably connected to the rotating disk up and down, and the first meshing gear ring can mesh with the bevel gear, and the second connecting member includes a second meshing gear ring slidably connected to the rotating ring up and down, and the second meshing gear ring can mesh with the bevel gear; the switching member is used to trigger the first meshing gear ring and the second meshing gear ring to move up and down synchronously, so that one of them meshes with the bevel gear.

[0015] By adopting the above technical solution, when the first meshing gear ring or the second meshing gear ring is meshed with the bevel gear, the bevel gear can be rotated, thereby driving the rotating ring or the rotating disk to rotate.

[0016] Optionally, the rotating disk is coaxially provided with an annular bulge extending upward, a first groove body is provided in the annular bulge, and the first meshing gear ring is provided with a first rod slidably passed through the annular bulge and extended to the first groove body; the rotating ring is provided with a second groove body, and the second meshing gear ring is provided with a second rod slidably passed through the lower end of the rotating ring and extended to the second groove body; a first reset member is provided on the outer wall of the first rod, and a second reset member is provided on the outer wall of the second rod. The switching member is located in the inner cavity of the connecting column and can move up and down in the connecting column, and the switching member partially passes through the side wall of the connecting column to cooperate with the first rod and the second rod; when the switching member moves downward, the second rod is pushed to slide downward and the second reset member is compressed, and the second meshing gear ring is meshed with the bevel gear; when the switching member moves upward, the first meshing gear ring is meshed with the bevel gear and the first reset member is compressed.

[0017] By adopting the above technical solution, the switching member cooperates with the first rod and the second rod, so that the positions of the first meshing gear ring and the second meshing gear ring can be controlled when the switching member moves up and down.

[0018] Optionally, the switching member includes a frame located in the inner cavity of the connecting column, an adjusting column rotatably connected to the upper end surface of the connecting column, and abutment rings respectively arranged in the first groove body and the second groove body, the lower end of the adjusting column is threadedly connected to the frame body, the abutment ring is provided with a connecting block connected to the frame body, and the side wall of the connecting column is provided with a clearance groove for the connecting block to move up and down; when the abutment ring moves downward, it can push the second rod to move downward, and when the abutment ring moves upward, it can push the first rod to move upward.

[0019] By adopting the above technical solution, the frame can be driven to move up and down by rotating the adjustment column, and then the first rod or the second rod is pushed to move by the abutment ring to achieve the effect of adjusting the first meshing gear ring and the second meshing gear ring.

[0020] Optionally, the push cylinder is a structure that is larger at the top and smaller at the bottom, and there is a gap between the upper end of the push cylinder and the side wall of the connecting column. The guide structure includes a first guide portion arranged on the inner wall of the push cylinder and a second guide portion arranged on the side wall of the connecting column. One of the first guide portion and the second guide portion is a guide protrusion, and the other is a guide groove.

[0021] By adopting the above technical solution, under the cooperation of the first guide part and the second guide part, when the rotating ring rotates, the pushing cylinder is not easy to rotate, so that the pushing cylinder can move up and down stably.

[0022] Optionally, a plurality of first rods are arranged at intervals along the circumference of the first meshing gear ring, and a plurality of second rods are arranged at intervals along the circumference of the second meshing gear ring.

[0023] By adopting the above technical solution, a plurality of first rods and second rods are provided, thereby improving the stability of the structure during rotation, and making it difficult for the first rod and the second rod to bend or the like.

[0024] Optionally, a second element for driving the adjustment column to rotate is disposed at the upper end of the connection column, and under the action of the lighting assembly, the projection of the second element is located on the upper surface of the mounting seat.

[0025] By adopting the above technical solution, the second element is used to drive the adjustment column to rotate, which is convenient and quick, and the projection of the second element will not enter the annular groove, will not affect the living conditions of plankton, and improves the detection accuracy.

[0026] In a second aspect, the present application provides a method for detecting plankton.

[0027] A method for detecting plankton, using the multi-viewing in-situ detection device for plankton described in the above scheme, comprises the following steps;

[0028] S1, driving the rotating disk to rotate by a driving source, so that the fluid flows in the annular groove to drive the plankton to move, and capturing the dynamic state of the plankton by a camera device;

[0029] S2. When the fluid needs to be driven to rotate in the opposite direction, the driving source and the rotating disk are disengaged through the switching member, and the pushing member is driven to move, and the blocking piece is driven by the pushing member to slide into the annular groove, so that the fluid is quickly calmed;

[0030] S3, then the driving source rotates in the reverse direction, so that the pushing member moves in the reverse direction so that the baffle is retracted into the receiving groove, and the driving source and the rotating disk are matched through the switching member, and then the fluid is driven to move in the reverse direction through the rotating disk, and the dynamic state of the plankton is captured by the camera device.

[0031] In summary, the present application includes at least one of the following beneficial effects:

[0032] 1. The driving source drives the rotating disk to rotate forward or reverse, thereby driving the fluid in the annular groove to flow in the forward direction or the reverse direction. Therefore, after detecting the dynamic state of plankton in one direction, the driving source is controlled to rotate in the reverse direction, so that the dynamic state of plankton moving in another direction can be detected;

[0033] 2. The driving source and the rotating disk are separated by the switching member, and the rotating disk can stop. Then the driving source drives the pusher to move and the baffle extends into the annular groove, so that the fluid can stabilize more quickly and shorten the waiting time during detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0035] Figure 2 is a schematic diagram of a sample holding device in an embodiment of the present application;

[0036] Figure 3 is a cross-sectional schematic diagram of a sample holding device in an embodiment of the present application;

[0037] Figure 4 yes Figure 3 The enlarged schematic diagram of point A in the middle;

[0038] Figure 5 It is a schematic diagram of the cooperation between the pusher and the baffle in the embodiment of the present application.

[0039] Explanation of reference numerals: 1, housing; 2, camera device; 3, sample holding device; 31, base; 32, mounting seat; 321, connecting column; 322, blocking seat; 323, accommodating chamber; 4, annular groove; 5, rotating disk; 6, stirring part; 7, driving source; 71, bevel gear; 72, first element; 8, accommodating groove; 9, blocking piece; 10, pushing member; 101, rotating ring; 102, pushing cylinder; 11, switching member; 111, frame; 112, adjusting column; 113, abutment Ring; 114, connecting block; 12, first connecting member; 121, first meshing tooth ring; 13, second connecting member; 131, second meshing tooth ring; 141, first guide portion; 142, second guide portion; 15, extension rod; 16, first elastic member; 17, annular convexity; 18, first groove body; 19, first rod; 20, first reset member; 21, second groove body; 22, second rod; 23, second reset member; 24, clearance groove; 25, second element; 26, lighting assembly. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-5 This application is described in further detail.

[0041] Example 1: This application example discloses a multi-view in-situ detection device for plankton, referring to Figure 1, including a shell 1, a camera device 2 and a sample holding device 3. The shell 1 is an internal hollow structure, and the camera device 2 and the sample holding device 3 are located in the shell 1, thereby reducing the influence of the external environment on the detection. A fluid (preferably water) containing plankton is placed in the sample holding device 3. When the fluid flows, the camera device 2 captures the dynamic state of the plankton and collects images and other information. This is a prior art and is not the focus of this application, so it will not be elaborated here.

[0042] Reference Figure 1 and Figure 2 The sample holding device 3 includes a base 31 and a mounting seat 32. The base 31 is a cylindrical structure with its opening facing upward, and the mounting seat 32 is installed in the inner cavity of the base 31. The base 31 and the mounting seat 32 are coaxially arranged, and an annular groove 4 is formed between the outer wall of the mounting seat 32 and the inner wall of the base 31. Water is poured into the annular groove 4. A light assembly 26 is installed on the inner top surface of the shell 1. The light generated by the light assembly 26 needs to minimize the shadow in the annular groove 4. In addition, the water level is close to the upper end opening of the annular groove 4, which can also reduce the possibility of shadows on the water surface.

[0043] Reference Figure 3 and Figure 4 A rotating disk 5 is rotatably mounted on the lower side wall of the mounting seat 32. The rotating disk 5 partially extends into the annular groove 4, and a stirring portion 6 is fixed to the portion of the rotating disk 5 in the annular groove 4. The stirring portion 6 is a columnar structure and vertically extends upward into the annular groove 4. A driving source 7 is also installed in the mounting seat 32. The driving source 7 is used to drive the rotating disk 5 to rotate forward or reverse. When the rotating disk 5 rotates, the stirring portion 6 is driven to move, thereby driving the water energy to flow along the direction of the movement of the rotating disk 5, and then driving the movement of plankton on the water surface. When a reverse detection is completed, the rotating disk 5 is driven to rotate in the reverse direction by the driving source 7, so that the dynamic state of the plankton when it moves in another direction can be detected.

[0044] The side wall of the mounting seat 32 is provided with a receiving groove 8, and a plurality of receiving grooves 8 are distributed at intervals along the circumference of the mounting seat 32, and eight are provided in this embodiment. A baffle 9 is slidably connected in each receiving groove 8, and a pusher 10 is installed in the mounting seat 32, and the pusher 10 can cooperate with the driving source 7 so that the pusher 10 can push the baffle 9 to slide into the annular groove 4. A switching member 11 is also installed in the mounting seat 32, and the switching member 11 is used to switch the driving source 7 to cooperate with the rotating disk 5 or to cooperate with the pusher 10. When the driving source 7 cooperates with the rotating disk 5, the rotating disk 5 is driven to rotate. When the driving source 7 cooperates with the pusher 10, the pusher 10 can be driven to move, thereby driving the baffle 9 to move through the pusher 10.

[0045] Reference Figure 3The mounting seat 32 includes a connecting column 321 fixed at the center of the base 31 and a stopper 322 mounted on the side wall of the connecting column 321. There is a receiving cavity 323 between the stopper 322 and the outer wall of the connecting column 321, and the pusher 10 is located in the receiving cavity 323. The receiving groove 8 is opened on the outer wall of the stopper 322, and the stopper 9 is slidably mounted on the stopper 322. The rotating disk 5 is mounted on the outer wall of the lower end of the connecting column 321, and there is a gap between the lower end of the stopper 322 and the inner bottom surface of the base 31 to provide space for the rotating disk 5, and the lower end of the stopper 322 abuts against the upper surface of the rotating disk 5.

[0046] Reference Figure 3 and Figure 5 The pusher 10 includes a rotating ring 101 rotatably connected to the outer wall of the connecting column 321 by means of a bearing or the like, and a pushing cylinder 102 threadedly connected to the outer wall of the rotating ring 101. The pushing cylinder 102 is a truncated cone structure with a larger top and a smaller bottom. A guide structure is provided between the pushing cylinder 102 and the connecting column 321, and when the rotating ring 101 rotates, the pushing cylinder 102 can move up and down.

[0047] Combination Figure 4 The guide structure includes a first guide portion 141 disposed on the inner wall of the push cylinder 102 and a second guide portion 142 disposed on the outer wall of the connecting column 321. One of the first guide portion 141 and the second guide portion 142 is a guide protrusion and the other is a guide groove. In this embodiment, the first guide portion 141 is a protrusion and is symmetrically arranged, and the second guide portion 142 is a guide groove opened on the side wall of the connecting column 321, and the protrusion extends into the guide groove, thereby limiting the rotation of the push cylinder 102.

[0048] Reference Figure 3 and Figure 5, an extension rod 15 is fixed on the baffle 9, and the extension rod 15 slides through the baffle seat 322 and extends into the accommodating cavity 323, and abuts against the outer wall of the push cylinder 102. A first elastic member 16 is provided on the outer wall of the extension rod 15, and the first elastic member 16 is preferably a spring. One end of the spring abuts against the inner wall of the baffle seat 322, and the other end is connected to the end of the extension rod 15. When the push cylinder 102 moves downward, the movement of the baffle 9 can be pushed by the extension rod 15, and the baffle 9 can slide along the radial direction of the annular groove 4 and extend into the annular groove 4. When the baffle 9 slides into the annular groove 4, the first elastic member 16 is compressed. Therefore, after the detection of water flowing in a certain direction is completed, when it is necessary to detect the reverse flow of water for plankton, the driving source 7 and the rotating disk 5 are disengaged through the switching member 11, and the driving source 7 and the rotating ring 101 cooperate and drive the rotating ring 101 to rotate, and the baffle 9 can be extended into the annular groove 4. Under the action of the baffle 9, the water body is divided into multiple parts, so that the water can quickly stabilize. Then the driving source 7 rotates in the opposite direction to reset the push cylinder 102, and then the driving source 7 and the first connecting member 12 cooperate through the switching member 11, so that the rotating disk 5 can be driven to rotate in the opposite direction. In order to facilitate the sliding of the extension rod 15 by the push cylinder 102, the extension rod 15 abutting against the end of the push cylinder 102 can be rotatably installed with a ball or the like to reduce the friction.

[0049] Reference Figure 3 and Figure 4 The connecting column 321 is an internal hollow structure, and the driving source 7 includes a bevel gear 71 rotatably connected to the side wall of the connecting column 321 through a rotating shaft, and a first element 72 installed in the inner wall of the connecting column 321. The first element 72 is preferably a forward and reverse motor. The rotating disk 5 is installed with a first connecting member 12, and the lower end of the rotating ring 101 is installed with a second connecting member 13. The switching member 11 can make the first connecting member 12 cooperate with the driving source 7 to rotate the rotating disk 5, or make the second connecting member 13 cooperate with the driving source 7 to rotate the rotating ring 101.

[0050] The first connecting member 12 is a first meshing gear ring 121 slidably connected to the rotating disk 5, and the second connecting member 13 is a second meshing gear ring 131 slidably connected to the lower end of the rotating ring 101. The first meshing gear ring 121 is located below the bevel gear 71, and the second meshing gear ring 131 is located above the bevel gear 71. The first meshing gear ring 121 and the second meshing gear ring 131 are coaxially arranged with the connecting column 321. The switching member 11 is used to drive one of the first meshing gear ring 121 and the second meshing gear ring 131 to cooperate with the bevel gear 71, so that the driving source 7 can only drive one of them to rotate.

[0051] Reference Figure 3 and Figure 4, an annular protrusion 17 extending upward is fixed on the rotating disk 5, and the first meshing gear ring 121 slides up and down on the annular protrusion 17. The inner wall of the annular protrusion 17 abuts against the outer wall of the connecting column 321, so that the rotating disk 5 is not easily offset when rotating. A first groove body 18 is provided on the inner wall of the annular protrusion 17, and the first groove body 18 extends along the circumferential direction of the annular protrusion 17, and the first groove body 18 penetrates the inner wall of the annular protrusion 17. A plurality of first rods 19 are fixed on the lower surface of the first meshing gear ring 121, and one end of the first rod 19 slides through the upper end surface of the annular protrusion 17 and extends into the first groove body 18. A first reset member 20 is installed on a part of the outer wall of the first rod 19 in the first groove body 18. The first reset member 20 is a spring, one end of which abuts against the inner top surface of the first groove body 18, and the other end is connected to the end of the first rod 19. When the first rod 19 slides upward so that the first meshing gear and the bevel gear 71 are meshed, the first reset member 20 is in a compressed state.

[0052] A second slot 21 is provided on the inner wall of the rotating ring 101. The second slot 21 extends along the circumference of the rotating ring 101 and penetrates the inner wall of the rotating ring 101. A plurality of second rods 22 are fixed to the upper end surface of the second meshing gear. The second rods 22 slide upward and pass through the lower end surface of the rotating ring 101 and extend into the second slot 21. A second reset member 23 is sleeved on a part of the side wall of the second rod 22 in the second slot 21. The second reset member 23 is a spring. One end of the second reset member 23 abuts against the inner bottom surface of the second slot 21, and the other end is connected to the end of the second rod 22. When the second rod 22 slides downward to mesh the second meshing gear ring 131 with the bevel gear 71, the second reset member 23 is in a compressed state.

[0053] Reference Figure 3 and Figure 4 The switching member 11 includes a frame 111 located in the inner cavity of the connecting column 321, an adjusting column 112 rotatably connected to the upper end of the connecting column 321, and two abutting rings 113 installed on the side wall of the frame 111. The abutting rings 113 are distributed up and down on the frame 111 and are respectively located in the first slot 18 and the second slot 21. A connecting block 114 is fixed to the side wall of the frame 111, and the abutting ring 113 is connected to the frame 111 through the connecting block 114. A clearance groove 24 is opened on the inner wall of the connecting column 321, and the connecting block 114 passes through the clearance groove 24. When the adjusting column 112 rotates, it drives the frame 111 to move up and down, and the connecting block 114 can move up and down in the clearance groove 24.

[0054] The lower end of the first rod 19 abuts against the upper surface of the lower abutment ring 113, and the upper end of the second rod 22 abuts against the lower surface of the upper abutment ring 113. When the frame 111 moves downward, the first reset member 20 drives the first rod 19 to move downward, and the upper abutment ring 113 pushes the second rod 22 to move downward, that is, the second meshing gear ring 131 and the bevel gear 71 can be meshed, and the driving source 7 drives the rotating ring 101 to rotate. When the frame 111 moves upward, the lower abutment ring 113 pushes the first rod 19 to move upward so that the first meshing gear ring 121 and the bevel gear 71 are meshed, and the second reset member 23 drives the second rod 22 to move upward and reset so that the second meshing gear ring 131 and the bevel gear 71 are separated, and the driving source 7 drives the rotating disk 5 to rotate.

[0055] In a further embodiment, in order to facilitate driving the adjustment column 112, a second element 25 is installed on the upper end of the connecting column 321, and the second element 25 is preferably a motor. After the second element 25 is installed on the upper end of the connecting column 321, the projection of the second element 25 is located on the upper surface of the mounting seat 32, so that its projection will not fall into the annular groove 4 and cause an impact.

[0056] The implementation principle of a multi-view in-situ detection device for plankton in the embodiment of the present application is as follows: the driving source 7 drives the rotating disk 5 to rotate, so that the water moves in the direction of rotation and drives the plankton on the water surface to move, and the dynamic state of the plankton is obtained through the camera device 2. Then, the driving source 7 drives the rotating ring 101 to rotate through the switching member 11, the rotating disk 5 stops rotating, and the push tube 102 moves downward, so that the baffle 9 extends in the annular groove 4, and the water is divided into multiple areas under the action of the baffle 9, so that the water can stabilize quickly, and then the driving source 7 rotates in the reverse direction to reset the push tube 102, and the baffle 9 also resets, and then the driving source 7 drives the rotating disk 5 to rotate in the reverse direction through the switching member 11, so that the water can flow in the reverse direction, and the dynamic state of the plankton in the reverse flow is obtained through the camera device 2.

[0057] Embodiment 2: A method for detecting plankton, using the multi-viewing in-situ detection device for plankton in Embodiment 1, comprises the following steps;

[0058] S1, driving the rotating disk 5 to rotate through the driving source 7, so that the fluid flows in the annular groove 4 to drive the plankton to move, and capturing the dynamic state of the plankton through the camera device 2;

[0059] S2, then detect the dynamics of plankton when the fluid flows in the reverse direction, disengage the driving source 7 and the rotating disk 5 through the switching member 11, and drive the pusher 10 to move, and drive the baffle 9 to slide into the annular groove 4 through the pusher 10, so that the fluid is quickly calmed;

[0060] S3. Wait until the fluid becomes stable, then drive source 7 to rotate in the reverse direction, so that push member 10 moves in the reverse direction and baffle 9 is retracted into accommodating groove 8, and the drive source 7 and the rotating disk 5 are matched through the switching member 11, and then the fluid is driven to move in the reverse direction through the rotating disk 5, and the dynamic state of plankton is captured through the camera device 2.

[0061] 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-view in-situ plankton detection device, characterized in that: The invention comprises a shell (1) with a hollow interior, a camera device (2) and a sample holding device (3), wherein the shell (1) is provided with a light assembly (26), and the camera device (2) and the sample holding device (3) are located in the shell (1); the sample holding device (3) comprises a base (31) and a mounting seat (32), wherein the base (31) is a hollow structure, the mounting seat (32) is arranged in the inner cavity of the base (31), and an annular groove (4) for containing a fluid is enclosed between the mounting seat (32) and the inner wall of the base (31); a rotating disk (5) is rotatably connected to the lower end of the mounting seat (32), the rotating disk (5) is provided with a stirring portion (6) extending in the annular groove (4), and the mounting seat (32) is provided with a driving source (7) for driving the rotating disk (5) to rotate forward or reverse; The side wall of the mounting seat (32) is provided with a plurality of accommodating grooves (8) spaced apart along the circumference of the mounting seat (32); a baffle (9) is slidably arranged in the accommodating groove (8) and slides along the radial direction of the annular groove (4); and a pushing member (10) is arranged in the mounting seat (32); the driving source (7) is capable of driving the pushing member (10) to move so that the pushing member (10) drives the baffle (9) to slide; a switching member (11) is also installed in the mounting seat (32); under the action of the switching member (11), the driving source (7) is capable of switching between driving the rotating disk (5) to rotate and driving the pushing member (10) to move; The mounting seat (32) comprises a connecting column (321) and a stopper (322) arranged on a side wall of the connecting column (321); a receiving cavity (323) is provided between the stopper (322) and the connecting column (321); the stopper (9) is mounted on the stopper (322); the rotating disk (5) is rotatably connected to the lower side wall of the connecting column (321); the driving source (7) is mounted on the connecting column (321); the rotating disk (5) is provided with a first connecting member (12) capable of cooperating with the driving source (7); the pushing member (10) is provided with a second connecting member (13) capable of cooperating with the driving source (7); the switching member (11) cooperates with the first connecting member (12) and the second connecting member (13) to switch the first connecting member (12) or the second connecting member (13) to be connected to the driving source (7); The pushing member (10) comprises a rotating ring (101) rotatably connected to the outer wall of the connecting column (321) and a pushing cylinder (102) threadedly connected to the outer wall of the rotating ring (101); the second connecting member (13) is connected to the lower end of the rotating ring (101); when the second connecting member (13) and the driving source (7) are matched, the driving source (7) drives the rotating ring (101) to rotate via the second connecting member (13); the pushing cylinder (102) is a truncated cone-shaped structure; and the pushing cylinder (102) is 02) and the connecting column (321) are provided with a guide structure for limiting the rotation of the push cylinder (102); an extension rod (15) is provided on the baffle (9), the extension rod (15) slides through the baffle seat (322) and abuts against the side wall of the push cylinder (102), a first elastic member (16) is provided between the extension rod (15) and the baffle seat (322), and when the push cylinder (102) drives the baffle (9) to slide into the annular groove (4), the first elastic member (16) is compressed; The connecting column (321) is a hollow structure. The driving source (7) comprises a bevel gear (71) rotatably connected to the side wall of the connecting column (321), and a first element (72) installed in the inner cavity of the connecting column (321) and used to drive the bevel gear (71) to rotate. The first connecting member (12) is a first meshing gear ring (121) slidably connected to the rotating disk (5) up and down, and the first meshing gear ring (121) can mesh with the bevel gear (71). The second connecting member (13) comprises a second meshing gear ring (131) slidably connected to the rotating ring (101) up and down, and the second meshing gear ring (131) can mesh with the bevel gear (71). The switching member (11) is used to trigger the first meshing gear ring (121) and the second meshing gear ring (131) to move up and down synchronously, so that one of them meshes with the bevel gear (71). The rotating disk (5) is coaxially provided with an annular protrusion (17) extending upward, a first groove (18) being provided in the annular protrusion (17), and the first meshing toothed ring (121) is provided with a first rod (19) slidably passing through the annular protrusion (17) and extending from the first groove (18); the rotating ring (101) is provided with a second groove (21), and the second meshing toothed ring (131) is provided with a second rod (22) slidably passing through the lower end of the rotating ring (101) and extending from the second groove (21); a first reset member (20) is provided on the outer wall of the first rod (19), and a second reset member (22) is provided on the outer wall of the second rod (22). 3), the switching member (11) is located in the inner cavity of the connecting column (321) and can move up and down in the connecting column (321), and the switching member (11) partially passes through the side wall of the connecting column (321) to cooperate with the first rod (19) and the second rod (22); when the switching member (11) moves downward, it pushes the second rod (22) to slide downward and the second reset member (23) is compressed, and the second meshing gear ring (131) and the bevel gear (71) are meshed; when the switching member (11) moves upward, the first meshing gear ring (121) and the bevel gear (71) are meshed and the first reset member (20) is compressed; The switching member (11) comprises a frame (111) located in the inner cavity of the connecting column (321), an adjusting column (112) rotatably connected to the upper end surface of the connecting column (321), and abutment rings (113) respectively arranged in the first groove body (18) and the second groove body (21); the lower end of the adjusting column (112) is threadedly connected to the frame body (111); the abutment ring (113) is provided with a connecting block (114) connected to the frame body (111); and a side wall of the connecting column (321) is provided with a clearance groove (24) for the connecting block (114) to move up and down; when the abutment ring (113) moves downward, it can push the second rod (22) to move downward; when the abutment ring (113) moves upward, it can push the first rod (19) to move upward.

2. The multi-view in-situ plankton detection device according to claim 1, characterized in that: The push cylinder (102) is a structure that is larger at the top and smaller at the bottom, and there is a gap between the upper end of the push cylinder (102) and the side wall of the connecting column (321), and the guide structure comprises a first guide portion (141) arranged on the inner wall of the push cylinder (102) and a second guide portion (142) arranged on the side wall of the connecting column (321), and one of the first guide portion (141) and the second guide portion (142) is a guide protrusion and the other is a guide groove.

3. The multi-view in-situ plankton detection device according to claim 1, characterized in that: A plurality of first rods (19) are arranged at intervals along the circumference of the first meshing gear ring (121), and a plurality of second rods (22) are arranged at intervals along the circumference of the second meshing gear ring (131).

4. The multi-view in-situ plankton detection device according to claim 1, characterized in that: A second element (25) for driving the adjustment column (112) to rotate is disposed at the upper end of the connection column (321); under the action of the lighting assembly (26), the projection of the second element (25) is located on the upper surface of the mounting seat (32).

5. A method for detecting plankton, using the multi-viewing in-situ detection device for plankton according to any one of claims 1 to 4, characterized in that: The steps include: S1, driving the rotating disk (5) to rotate by means of a driving source (7), so that fluid flows in the annular groove (4), thereby driving the plankton to move, and capturing the dynamic state of the plankton by means of a camera device (2); S2. When it is necessary to drive the fluid to rotate in the opposite direction, the switching member (11) causes the driving source (7) and the rotating disk (5) to disengage from each other, and drives the pushing member (10) to move. The pushing member (10) drives the baffle (9) to slide into the annular groove (4), so that the fluid is quickly calmed; S3, the driving source (7) then rotates in the reverse direction, causing the pushing member (10) to move in the reverse direction so that the blocking piece (9) is retracted into the receiving groove (8), and the switching member (11) causes the driving source (7) and the rotating disk (5) to cooperate with each other, thereby driving the fluid to move in the reverse direction through the rotating disk (5), and capturing the dynamic state of the plankton through the camera device (2).

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