A device for detecting aquatic products and a method of using the same

Abstract

The present invention discloses a device for detecting aquatic products and a method for using the device, which belongs to the field of water quality detection. The main body plate has buoyancy plates installed on both sides of the main body plate, and the buoyancy plates are fixedly connected to the main body plate; a central cavity is provided on the main body plate, a rotating cylinder is installed in the central cavity, a fixed column is provided on the rotating cylinder, multiple groups of fixed columns are provided, and they are sequentially arranged around the rotating surface, an elastic plate is also installed in the central cavity, one end of the elastic plate is fixedly connected to the inner wall of the central cavity, the fixed column squeezes the elastic plate downward when rotating on the rotating cylinder, and a sampler is installed below one end of the elastic plate relative to the rotating cylinder; a driving member 1 and a driving member 2 are respectively installed on the main body plate; a first gear is installed on the driving member 2, and a second gear is installed on the outer end of the rotating cylinder, and the number of teeth of the first gear is less than the number of teeth of the second gear. The present invention overcomes the technical problems of single sampling results and easy interference of results.

Description

Technical Field

[0001] The invention belongs to the field of water quality detection, and in particular relates to a device for detecting aquatic products and a use method thereof. Background Art

[0002] In recent years, with the development of aquatic product breeding industry, the demand for aquatic product quality testing has also increased. When testing the quality of aquatic products, it is necessary to take a certain amount of samples from the selected parts of the aquatic products and homogenize them, and then use specific reagents and instruments to detect the content of the target. Sampling is the first step in the aquatic product testing process, and the cleanliness of the sampling process affects the accuracy of the subsequent test results.

[0003] This patent first tests water samples, which is an effective evidence for the detection of aquatic products and an effective control of the content of some aquatic products to be tested.

[0004] Reference CN201810527562.X discloses a water quality testing device for aquaculture, which detects water quality and can be sampled at different locations. However, there are still problems such as either a single water quality testing location or multiple sampling points contaminating each other, resulting in inaccurate data. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the sampling results are single and easily interfered with each other.

[0006] In order to solve the above technical problems, the inventors have obtained the technical solution of the present invention through practice and summary. The present invention discloses a device for detecting aquatic products, including a main body plate, buoyancy plates are installed on both sides of the main body plate, and the buoyancy plates are fixedly connected to the main body plate;

[0007] The main body plate is provided with a central cavity, a rotating cylinder is installed in the central cavity, a fixed column is provided on the rotating cylinder, a plurality of fixed columns are provided, and the fixed columns are arranged in sequence around the rotating surface, an elastic plate is also installed in the central cavity, one end of the elastic plate is fixedly connected to the inner wall of the central cavity, the fixed column presses the elastic plate downward when rotating on the rotating cylinder, and a sampler is installed below one end of the elastic plate relative to the rotating cylinder;

[0008] A driving member 1 and a driving member 2 are respectively mounted on the main body plate, wherein the driving member 1 is suitable for driving the main body plate forward, and the driving member 2 is suitable for driving the rotating drum to rotate;

[0009] A first gear is installed on the second driving member, and a second gear is installed on the outer end of the rotating cylinder. The number of teeth of the first gear is smaller than the number of teeth of the second gear.

[0010] In a further solution, a main shaft is installed in the rotating cylinder, a coupling seat is arranged on the main body plate located in the central cavity, two groups of the coupling seats are arranged and connected to the two ends of the main shaft, a segmented boss is arranged on the main shaft, the segmented boss is provided with a connecting hole 1, the connecting hole 1 is provided with multiple groups and arranged circumferentially, a connecting strip is installed outside the connecting hole 1, and the fixing column is installed outside the connecting strip;

[0011] The connecting strip is provided with a second connecting hole, which is matched with the first connecting hole, and a locking bolt is installed between the first connecting hole and the second connecting hole.

[0012] In a further solution, a frame plate is installed outside the rotating cylinder, a groove is opened in the frame plate and is suitable for limiting the displacement of the first gear and the second gear, the first gear is connected to the main shaft extending from the coupling seat, two groups of second gears are meshed under the first gear, and a second driving member is installed outside one group of the second gears;

[0013] The second driving member comprises a driving motor, a body of the driving motor is connected to the main plate, an output end of the driving motor is connected to the second gear, and the driving motor is suitable for driving the rotating drum to rotate.

[0014] In a further embodiment, the sampler includes a fixing plate, the fixing plate is connected to the bottom of the elastic plate, a sampling tube is installed at one end of the fixing plate away from the elastic plate, the upper end of the sampling tube is open, and the fixing plate is detachably connected to one side of the sampling tube;

[0015] A storage cavity is provided in the sampling tube, and the storage cavity is a bending cavity;

[0016] The sampling tubes are arranged in multiple groups, and the number is consistent with the number of the segmentation bosses.

[0017] In a further embodiment, a hinge seat is further installed on the main body plate, an intermittent mechanism and a paddle member are installed on the hinge seat, and the intermittent mechanism is suitable for intermittently swinging the paddle member to rotate;

[0018] The intermittent mechanism comprises a rotating disk and a reciprocating plate, a limiting column is installed on the rotating disk, a vertical slot and a horizontal slot are respectively opened on the reciprocating plate, the limiting column is installed in the vertical slot, the horizontal slots are respectively arranged on both sides of the reciprocating plate, and limiting bolts are respectively installed in the horizontal slots. The rotating disk drives the reciprocating plate to rotate, and the horizontal slots on both sides make horizontal reciprocating motion on the limiting bolts. The reciprocating plate is provided with a fixed tooth, and a rotating gear is meshed on the fixed tooth. The rotating gear is suitable for being coaxially connected with the paddle member;

[0019] An output motor is installed on one side of the rotating disk, and an output end of the output motor is connected to the rotating disk.

[0020] In a further solution, the paddle component includes a connecting shaft, which is coaxially connected to the rotating gear. The lower end of the connecting shaft is bent, and a waterproof motor is installed at the bottom end of the connecting shaft. A stirring paddle disk is installed at the output end of the waterproof motor, and the waterproof motor is suitable for driving the stirring paddle disk to rotate.

[0021] A method for using a device for detecting aquatic products comprises the following steps:

[0022] Step 1: Installation:

[0023] S1. Select a main body plate of suitable size, open a central cavity on the main body plate, install a rotating cylinder and an elastic plate in the central cavity, install a connecting strip on the upper edge of the rotating cylinder on the segmented boss, when the fixed column on the connecting strip rotates along the main axis, the fixed column squeezes the elastic plate and allows the sampling tube to enter the water surface, that is, the height of the sampling tube is that the upper end of the sampling tube is higher than the water surface when no sampling is performed, and the upper end of the sampling tube is lower than the water surface after being bent by the elastic sheet;

[0024] S2. The first gear and the second gear are installed in the frame plate, and the second gear is provided with two groups, one group is an auxiliary wheel to maintain the relative position of the first gear, and the other group is externally installed with a drive motor, and the drive motor is detachably connected to the main plate;

[0025] S3. In step S1, the sampler is pre-detachably connected when the elastic sheet is installed, the storage cavity provided in the sampling tube is "S"-shaped, and a puncturable film is provided at the bottom of the sampling tube, and the film is connected to the storage cavity;

[0026] S4. Install the connecting shaft on the articulated seat, and the intermittent structure is installed on the articulated seat so that the connecting shaft is coaxially connected to the rotating gear;

[0027] Both the drive motor and the output motor can be stepper motors;

[0028] The driving motor, output motor and waterproof motor are all connected to the control module. The control module includes a single-chip microcomputer and a stepper motor driver to achieve the connection driving effect; the specific control module refers to the existing single-chip microcomputer to control the stepper motor. The single-chip microcomputer includes a Bluetooth module to realize data transmission, and a position sensor can be added to further determine the detection point position and synchronize data with a mobile phone or computer. It will not be elaborated here and refer to the existing technology.

[0029] Step 2: Use:

[0030] Place the main board at the launching point near the shore, and drive the waterproof motor to rotate, driving the main board to the detection point. The driving motor rotates to drive the fixed column on the rotating cylinder to rotate and hit the elastic plate. The elastic plate is bent under pressure, driving the sampling tube to bend down to take samples. The storage cavity in the sampling tube is bent to store samples. After that, the elastic plate is reset and the sampling tube is reset. In the same step, the intermittent mechanism drives the connecting shaft to rotate, driving the main board to turn, and sampling is detected at multiple points, and then returns to the launching point.

[0031] Compared with the prior art, the present invention can achieve the following technical effects:

[0032] Compared with the prior art method of salvaging water from a distance, which is time-consuming and labor-intensive, and the samples taken are easily infected with each other, resulting in unsatisfactory detection results; the present invention is designed to use a rotating cylinder to squeeze the elastic plate back and forth, so that the sampling tube presses down to take water after the elastic plate is compressed, and the sample of the detection point is obtained. Because the driving motor is a stepping motor, it can output at equal angles, thereby obtaining the actual detection point effect. The present invention designs a larger rotating cylinder to install more sampling tubes, and can detect multiple points at the same time; through the transmission effect of the intermittent mechanism, the angle change of the driving member 2 is realized, and the direction of the main plate is controlled, which can better realize reciprocating motion. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 It is a structural diagram of the present invention;

[0035] Figure 2 It is a schematic diagram of the rotating drum of the present invention;

[0036] Figure 3 It is a cross-sectional view of the rotating drum structure of the present invention;

[0037] Figure 4 It is a horizontal cross-sectional view of the frame plate of the present invention;

[0038] Figure 5 A side cross-sectional view of a frame plate of the present invention;

[0039] Figure 6 It is a schematic diagram of the connection of the elastic plate of the present invention;

[0040] Figure 7 is a cross-sectional view of a sampling tube of the present invention;

[0041] Figure 8It is a schematic diagram of the intermittent mechanism of the present invention;

[0042] Fig. 9 It is a side sectional view of the intermittent mechanism of the present invention;

[0043] Fig.10 It is a cross-sectional view of the bottom of the connecting shaft of the present invention.

[0044] In the figure: 1. main plate; 2. buoyancy plate; 3. rotating cylinder; 4. fixed column; 5. elastic plate; 6. first gear; 7. second gear; 8. main shaft; 9. coupling seat; 10. segment boss; 11. connecting hole 1; 12. connecting strip; 13. frame plate; 14. driving motor; 15. fixed plate; 16. sampling tube; 17. storage chamber; 18. hinge seat; 19. rotating disk; 20. reciprocating plate; 21. limiting column; 22. vertical slot; 23. horizontal slot; 24. limiting bolt; 25. rotating gear; 26. output motor; 27. connecting shaft; 28. waterproof motor; 29. ​​stirring paddle disk. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] The application principle of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Example 1

[0047] like Figures 1 to 5 As shown, an embodiment of the present invention is a device for detecting aquatic products, comprising a main body plate 1, buoyancy plates 2 are installed on both sides of the main body plate 1, and the buoyancy plates 2 are fixedly connected to the main body plate 1;

[0048] A central cavity is provided on the main body plate 1, a rotating cylinder 3 is installed in the central cavity, a fixed column 4 is provided on the rotating cylinder 3, a plurality of fixed columns 4 are provided, and they are sequentially arranged around the rotating surface, an elastic plate 5 is also installed in the central cavity, one end of the elastic plate 5 is fixedly connected to the inner wall of the central cavity, the fixed column 4 presses the elastic plate 5 downward when rotating on the rotating cylinder 3, and a sampler is installed below one end of the elastic plate 5 relative to the rotating cylinder 3;

[0049] A driving member 1 and a driving member 2 are respectively installed on the main body plate 1. The driving member 1 is suitable for driving the main body plate 1 forward, and the driving member 2 is suitable for driving the rotating cylinder 3 to rotate. A first gear 6 is installed on the driving member 2, and a second gear 7 is installed on the outer end of the rotating cylinder 3. The number of teeth of the first gear 6 is less than the number of teeth of the second gear 7.

[0050] refer to Figure 1 and Figure 2A main shaft 8 is installed in the rotating cylinder 3, and a coupling seat 9 is provided on the main body plate 1 located in the central cavity. The coupling seat 9 is provided with two groups and connected to the two ends of the main shaft 8. A segmented boss 10 is provided on the main shaft 8. The segmented boss 10 is provided with a connecting hole 11. The connecting holes 11 are provided with multiple groups and are arranged circumferentially. A connecting strip 12 is installed outside the connecting hole 11, and the fixing column 4 is installed outside the connecting strip 12. A connecting hole 2 is provided on the connecting strip 12, and the connecting hole 2 is adapted to the connecting hole 11. The connecting hole 11 and the connecting hole 2 are suitable for installing a locking bolt connection. The segmented setting is convenient for connection and detachable.

[0051] A frame plate 13 is installed outside the rotating cylinder 3. A groove is provided inside the frame plate 13 and is suitable for limiting the displacement of the first gear 6 and the second gear 7. The first gear 6 is connected to the main shaft 8 extending from the coupling seat 9. Two groups of second gears 7 are meshed under the first gear 6. A second driving member is installed outside one group of the second gears 7.

[0052] The second driving member includes a driving motor 14 . The body of the driving motor 14 is connected to the main plate 1 . The output end of the driving motor 14 is connected to the second gear 7 . The driving motor 14 is suitable for driving the rotating drum 3 to rotate. Example 2

[0053] refer to Figure 1 , Figure 6 and Figure 7 As shown, it is another embodiment of the present invention. On the basis of Example 1, the sampler includes a fixing plate 15, the fixing plate 15 is connected to the bottom of the elastic plate 5, a sampling tube 16 is installed at one end of the fixing plate 15 away from the elastic plate 5, the upper end of the sampling tube 16 is open, and the fixing plate 15 is detachably connected to one side of the sampling tube 16; a storage cavity 17 is provided in the sampling tube 16, and the storage cavity 17 is a bent cavity; the sampling tube 16 is provided with multiple groups, and the number is consistent with the number of the segmented bosses 10, combined with Figure 1 Available. Example 3

[0054] refer to Figures 8 to 10 , which is another embodiment of the present invention, based on Example 2, a hinge seat 18 is further installed on the main body plate 1, and an intermittent mechanism and a paddle member are installed on the hinge seat 18, and the intermittent mechanism is suitable for intermittently swinging the paddle member to rotate;

[0055] The intermittent mechanism includes a rotating disk 19 and a reciprocating plate 20. A limiting column 21 is installed on the rotating disk 19. A vertical groove 22 and a transverse groove 23 are respectively opened on the reciprocating plate 20. The limiting column 21 is installed in the vertical groove 22. The transverse grooves 23 are respectively arranged on both sides of the reciprocating plate 20. Limiting bolts 24 are respectively installed in the transverse grooves 23. The rotation of the rotating disk 19 drives the reciprocating plate 20 to rotate, and the transverse grooves 23 on both sides make transverse reciprocating motion on the limiting bolts 24. Fixed teeth are arranged on the reciprocating plate 20, and a rotating gear 25 is meshed on the fixed teeth. The rotating gear 25 is suitable for being coaxially connected with the paddle member. An output motor 26 is installed on one side of the rotating disk 19, and the output end of the output motor 26 is connected to the rotating disk 19.

[0056] The paddle component includes a connecting shaft 27, which is coaxially connected to the rotating gear 25. The lower end of the connecting shaft 27 is bent. A waterproof motor 28 is installed at the bottom end of the connecting shaft 27. A stirring paddle disk 29 is installed at the output end of the waterproof motor 28. The waterproof motor 28 is suitable for driving the stirring paddle disk 29 to rotate.

[0057] The specific usage includes the following steps:

[0058] Step 1: Installation:

[0059] S1. Select a main body plate 1 of suitable size, open a central cavity on the main body plate 1, install a rotating cylinder 3 and an elastic plate 5 in the central cavity, install a connecting strip 12 on the upper edge of the split boss 10 of the rotating cylinder 3, when the fixed column 4 on the connecting strip 12 rotates along the main axis 8, the fixed column 4 squeezes the elastic plate 5 and makes the sampling tube 16 enter the water surface, that is, the height of the sampling tube 16 is that the upper end of the sampling tube 16 is higher than the water surface when no sampling is performed, and the sampling tube 16 is lower than the water surface after being bent by the elastic sheet;

[0060] S2. The first gear 6 and the second gear 7 are installed in the frame plate 13, and the second gear 7 is provided with two groups, one group is an auxiliary wheel to maintain the relative position of the first gear 6, and the other group of the second gear 7 is externally installed with a drive motor 14, and the drive motor 14 is detachably connected to the main plate 1;

[0061] S3. In step S1, the sampler is pre-detachably connected when the elastic sheet is installed, the storage chamber 17 provided in the sampling tube 16 is "S"-shaped, and a puncturable film is provided at the bottom of the sampling tube 16, and the film is connected to the storage chamber 17;

[0062] S4. The connecting shaft 27 is installed on the articulated seat 18, and the intermittent structure is installed on the articulated seat 18 so that the connecting shaft 27 is coaxially connected to the rotating gear 25;

[0063] Both the drive motor 14 and the output motor 26 can be stepper motors;

[0064] The driving motor 14, the output motor 26, and the waterproof motor 28 are all connected to the control module, and the control module includes a single chip microcomputer and a stepper motor driver to achieve the connection driving effect;

[0065] Step 2: Use:

[0066] Place the main plate 1 at the launching point near the shore, and drive the waterproof motor 28 to rotate, driving the main plate 1 to the detection point. The driving motor 14 rotates to drive the fixed column 4 on the rotating cylinder 3 to rotate, hitting the elastic plate 5. The elastic plate 5 is bent under pressure to drive the sampling tube 16 to bend down to take samples. The storage cavity 17 in the sampling tube 16 is bent to store samples. After that, the elastic plate 5 is reset and the sampling tube 16 is reset. In the same step, the connecting shaft 27 is driven to rotate through the intermittent mechanism to drive the main plate 1 to turn, and multi-point detection and sampling are performed, and then it returns to the launching point.

[0067] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0068] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for detecting aquatic products, characterized in that: It comprises a main body plate (1), buoyancy plates (2) are mounted on both sides of the main body plate (1), and the buoyancy plates (2) are fixedly connected to the main body plate (1); The main body plate (1) is provided with a central cavity, a rotating cylinder (3) is installed in the central cavity, a fixed column (4) is provided on the rotating cylinder (3), a plurality of fixed columns (4) are provided, and the fixed columns (4) are arranged in sequence around the rotating surface, an elastic plate (5) is also installed in the central cavity, one end of the elastic plate (5) is fixedly connected to the inner wall of the central cavity, the fixed column (4) presses the elastic plate (5) downward when rotating on the rotating cylinder (3), and a sampler is installed below one end of the elastic plate (5) relative to the rotating cylinder (3); A driving member 1 and a driving member 2 are respectively mounted on the main body plate (1), wherein the driving member 1 is suitable for driving the main body plate (1) forward, and the driving member 2 is suitable for driving the rotating drum (3) to rotate; The second driving member is provided with a first gear (6), and the outer end of the rotating cylinder (3) is provided with a second gear (7), wherein the number of teeth of the first gear (6) is smaller than the number of teeth of the second gear (7); The method of use comprises the following steps: Step 1: Installation: S1. Select a main body plate of suitable size, open a central cavity on the main body plate, install a rotating cylinder and an elastic plate in the central cavity, install a connecting strip on the upper edge of the rotating cylinder on the segmented boss, when the fixed column on the connecting strip rotates along the main axis, the fixed column squeezes the elastic plate and allows the sampling tube to enter the water surface, that is, the height of the sampling tube is that the upper end of the sampling tube is higher than the water surface when no sampling is performed, and the upper end of the sampling tube is lower than the water surface after being bent by the elastic sheet; S2. The first gear and the second gear are installed in the frame plate, and the second gear is provided with two groups, one group is an auxiliary wheel to maintain the relative position of the first gear, and the other group is externally installed with a drive motor, and the drive motor is detachably connected to the main plate; S3. In step S1, the sampler is pre-detachably connected when the elastic sheet is installed, the storage chamber provided in the sampling tube is "S" shaped, and a puncturable film is provided at the bottom of the sampling tube, and the film is connected to the storage chamber; S4. Install the connecting shaft on the articulated seat, and the intermittent structure is installed on the articulated seat so that the connecting shaft is coaxially connected to the rotating gear; The sampling tubes are arranged in multiple groups, and the number is consistent with the number of the segmentation bosses.

2. The device for detecting aquatic products according to claim 1, characterized in that: A main shaft (8) is installed in the rotating cylinder (3), and a coupling seat (9) is arranged on the main body plate (1) located in the central cavity. The coupling seat (9) is provided in two groups and is connected to the two ends of the main shaft (8). A split boss (10) is provided on the main shaft (8), and the split boss (10) is provided with a connecting hole (11). The connecting hole (11) is provided with multiple groups and is arranged circumferentially. A connecting strip (12) is installed outside the connecting hole (11), and the fixing column (4) is installed outside the connecting strip (12); The connecting strip (12) is provided with a second connecting hole, the second connecting hole being compatible with the first connecting hole (11), and the first connecting hole (11) and the second connecting hole being suitable for installing a locking bolt for connection.

3. The device for detecting aquatic products according to claim 1, characterized in that: A frame plate (13) is mounted outside the rotating cylinder (3), a groove is formed inside the frame plate (13) and is suitable for limiting the displacement of the first gear (6) and the second gear (7), the first gear (6) is connected to a main shaft (8) extending from a coupling seat (9), two groups of second gears (7) are meshed under the first gear (6), and a second driving member is mounted outside one group of the second gears (7); The second driving member comprises a driving motor (14), the body of the driving motor (14) is connected to the main body plate (1), the output end of the driving motor (14) is connected to the second gear (7), and the driving motor (14) is suitable for driving the rotating drum (3) to rotate.

4. A device for detecting aquatic products according to any one of claims 1 to 3, characterized in that: The sampler comprises a fixing plate (15), the fixing plate (15) being connected to the bottom of the elastic plate (5), a sampling tube (16) being mounted on one end of the fixing plate (15) away from the elastic plate (5), the upper end of the sampling tube (16) being open, and the fixing plate (15) being detachably connected to one side of the sampling tube (16); A storage cavity (17) is provided in the sampling tube (16), and the storage cavity (17) is a bent cavity; The sampling tubes (16) are provided in multiple groups, and the number is consistent with the number of the segmentation bosses (10).

5. The device for detecting aquatic products according to claim 4, characterized in that: The main body plate (1) is also provided with an articulated seat (18), and an intermittent mechanism and a paddle member are provided on the articulated seat (18), wherein the intermittent mechanism is suitable for intermittently swinging the paddle member to rotate; The intermittent mechanism comprises a rotating disk (19) and a reciprocating plate (20), wherein a limiting column (21) is installed on the rotating disk (19), and the reciprocating plate (20) is respectively provided with a vertical groove (22) and a transverse groove (23), wherein the limiting column (21) is installed in the vertical groove (22), and the transverse grooves (23) are respectively provided on both sides of the reciprocating plate (20), and limiting bolts (24) are respectively installed in the transverse grooves (23), wherein the rotating disk (19) rotates to drive the reciprocating plate (20) to rotate, and the transverse grooves (23) on both sides perform transverse reciprocating motion on the limiting bolts (24), and the reciprocating plate (20) is provided with a fixed tooth, and a rotating gear (25) is meshed on the fixed tooth, and the rotating gear (25) is suitable for being coaxially connected with the paddle member; An output motor (26) is installed on one side of the rotating disk (19), and an output end of the output motor (26) is connected to the rotating disk (19).

6. The device for detecting aquatic products according to claim 5, characterized in that: The paddle member comprises a connecting shaft (27), the connecting shaft (27) is coaxially connected to the rotating gear (25), the lower end of the connecting shaft (27) is bent, a waterproof motor (28) is installed at the bottom end of the connecting shaft (27), and a stirring paddle disc (29) is installed at the output end of the waterproof motor (28), and the waterproof motor (28) is suitable for driving the stirring paddle disc (29) to rotate.

7. A method for using the device for detecting aquatic products according to claim 6, characterized in that: The following steps are involved: S1. Select a main body plate (1) of suitable size, open a central cavity on the main body plate (1), install a rotating cylinder (3) and an elastic plate (5) in the central cavity, install a connecting strip (12) on the upper edge of the segmented boss (10) of the rotating cylinder (3), when the fixed column (4) on the connecting strip (12) rotates along the main axis (8), the fixed column (4) squeezes the elastic plate (5) and allows the sampling tube (16) to enter the water surface, that is, the height of the sampling tube (16) is such that when no sampling is performed, the upper end of the sampling tube (16) is opened higher than the water surface, and after the sampling tube (16) is bent by the elastic sheet, the open position is lower than the water surface; S2. The first gear (6) and the second gear (7) are both installed in the frame plate (13), and the second gear (7) is provided with two groups, one group is an auxiliary wheel for maintaining the relative position of the first gear (6), and the other group of the second gear (7) is externally installed with a drive motor (14), and the drive motor (14) is detachably connected to the main plate (1); S3. In step S1, the sampler is pre-detachably connected when the elastic sheet is installed, the storage chamber (17) provided in the sampling tube (16) is "S"-shaped, and a puncturable film is provided at the bottom of the sampling tube (16), and the film is connected to the storage chamber (17); S4. A connecting shaft (27) is installed on the hinge seat (18), and an intermittent structure is installed on the hinge seat (18) so that the connecting shaft (27) is coaxially connected to the rotating gear (25); The drive motor (14) and the output motor (26) may both be stepper motors; The driving motor (14), the output motor (26), and the waterproof motor (28) are all connected to a control module, and the control module includes a single-chip microcomputer and a stepper motor driver to achieve a connection driving effect.

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