An aquaculture veterinary drug residue detection device

Abstract

The present invention belongs to the technical field of veterinary drug residue detection. The present invention discloses a veterinary drug residue detection device for aquaculture; it includes a main body of a veterinary drug residue detector, and further includes: a housing, which is fixedly connected to the bottom of the main body of the veterinary drug residue detector. By setting a lifting assembly and a replacement assembly, when it is necessary to take a water sample through a sampling tube, the first motor is started to drive the wire reel to release the connecting rope from the wire reel. The conical block, the vertical rod, the base and the counterweight drive the sampling tube inside them to move downward through the through hole. During the downward movement, the conical filter screen leaves the connecting piece, and under the action of the first spring, the conical filter screen is arranged on the sampling tube. The sampling tube descends into the water to collect water, and then the sampling tube returns to its original position through the lifting assembly. The first electric push rod is started to push the sampling tube through the push plate, pushing the sampled sampling tube away and pushing the new sampling tube onto the base, achieving the purpose of automatic sampling.

Description

Technical Field

[0001] The present invention relates to the technical field of veterinary drug residue detection, and more specifically, the present invention relates to an aquaculture veterinary drug residue detection device. Background Art

[0002] In the aquaculture industry, the use of veterinary drugs is crucial for preventing and treating diseases of aquatic animals. However, excessive or improper use of veterinary drugs may lead to the residues of veterinary drugs in water bodies, posing potential threats to the aquatic ecosystem and also having adverse effects on human health. Therefore, it is necessary to regularly monitor and evaluate the residues of veterinary drugs in the aquaculture environment.

[0003] Currently, the residues of veterinary drugs in the aquaculture process are mainly detected by a dedicated veterinary drug residue detector, which is usually a portable suitcase for on-site sampling and real-time detection by staff. However, the current veterinary drug residue detector cannot automatically sample at the aquaculture site. Instead, staff need to manually sample and then take the samples to the veterinary drug residue detector for testing, which is rather cumbersome. During the sampling process, staff also face the risk of falling into the water. Summary of the Invention

[0004] In order to solve the problem that the current veterinary drug residue detector cannot automatically sample at the aquaculture site in the background art, the present invention provides an aquaculture veterinary drug residue detection device.

[0005] To achieve the above object, the present invention provides the following technical solution: An aquaculture veterinary drug residue detection device includes a veterinary drug residue detector main body, and further includes:

[0006] A housing fixedly connected to the bottom of the veterinary drug residue detector main body. Four electric wheels are installed at the bottom of the housing. A flat plate is provided inside the housing. A plurality of sampling tubes in contact with each other are provided on the flat plate. A lifting assembly for driving the sampling tubes to move in the vertical direction for sampling is provided on the flat plate. A replacement assembly for replacing the sampling tubes and a sealing assembly for sealing the sampling tubes after sampling are also provided on the flat plate;

[0007] The sealing assembly includes a telescopic support plate fixedly connected to the flat plate. A second motor is fixedly connected to the telescopic support plate. The output shaft of the second motor is fixedly connected to a first threaded rod. A hollow cylinder is fixedly connected to the telescopic support plate through a connecting block. A circular plate is installed at the top of the hollow cylinder. The first threaded rod is threadedly connected to the middle of the circular plate. A rubber block is fixedly connected to the bottom end of the first threaded rod. A plurality of rubber plugs are provided inside the hollow cylinder. Internal threads are provided on the rubber plugs, and external threads adapted to the internal threads are provided in the sampling tubes.

[0008] Further, the lifting assembly includes two vertical plates fixedly connected to the top of the flat plate. A first motor is fixedly connected to one of the vertical plates. The output shaft of the first motor is fixedly connected to a wire reel. A connecting rope is wound and fixedly connected to the surface of the wire reel. One end of the connecting rope is fixedly connected to a conical block. A through hole adapted to the conical block and facing the conical block is formed in the flat plate. Two vertical rods are fixedly connected to the bottom of the conical block. The bottom ends of the vertical rods are fixedly connected to a base located in the through hole and having its top flush with the top of the flat plate. A counterweight block located in the through hole is fixedly connected to the bottom of the base. One of the sampling tubes is located in the middle of the base. The diameters of the conical block, the base, and the through hole are the same. The diameter of the conical block is larger than the diameter of the sampling tube.

[0009] Further, two L-shaped support plates are fixedly connected to the flat plate. Elastic connecting pieces are fixedly connected to the L-shaped support plates. A filtering assembly for preventing floating objects in water from entering the sampling tube is arranged on the conical block. The filtering assembly includes a telescopic sleeve fixedly connected to the bottom of the conical block. A conical filter screen is fixedly connected to the bottom end of the telescopic sleeve. A first spring sleeved outside the telescopic sleeve is fixedly connected between the conical filter screen and the conical block. The two connecting pieces are in contact with the bottom of the conical filter screen.

[0010] Further, a cross plate is fixedly connected between the two vertical plates. A second spring in a compressed state is fixedly connected to the bottom of the cross plate. The bottom end of the second spring is fixedly connected to a circular ring plate. The circular ring plate is sleeved and abutted on the conical block. A T-shaped rod is fixedly connected to the bottom of the circular ring plate. A third spring is fixedly connected to one of the vertical plates. One end of the third spring is fixedly connected to a T-shaped plate. Two extrusion blocks are fixedly connected to the T-shaped plate. A triangular block is fixedly connected to the T-shaped plate. The T-shaped rod faces the inclined surface of the triangular block.

[0011] Further, the replacement assembly includes a first electric push rod fixedly connected to the bottom of the flat plate. The output end of the first electric push rod is fixedly connected to a moving plate. A moving rod is fixedly connected to the moving plate. One end of the moving rod is fixedly connected to a push plate in contact with one of the sampling tubes. Two limiting frames are fixedly connected to the flat plate. A plurality of limiting rollers in contact with the sampling tubes are installed on the limiting frames. The T-shaped plate is slidably connected to the two limiting frames. The moving rod slides through one of the limiting frames.

[0012] Further, a second electric push rod is fixedly connected to the side wall of the hollow cylinder. The output end of the second electric push rod is fixedly connected to an L-shaped plate. One end of the L-shaped plate is fixedly connected to a circular plate that slidably penetrates through the hollow cylinder. The circular plate is located at the bottom of the lowermost rubber plug. The bottom of the circular plate is flush with the top of the sampling tube.

[0013] Further, two clamping plates are slidably connected to the limiting frame. A connecting rod is fixedly connected to the clamping plate. A hemisphere is fixedly connected to one end of the connecting rod. Two fixed columns are fixedly connected to the L-shaped plate, and the fixed columns are opposite to the curved surface of the hemisphere away from the middle.

[0014] Further, a stabilizing assembly for stabilizing the main body of the veterinary drug residue detector and the housing during the sampling process is provided inside the housing. The stabilizing assembly includes a third motor fixedly connected to the bottom of the housing. A second threaded rod is fixedly connected to the output shaft of the third motor. A lifting plate is threadedly connected to the outer wall of the second threaded rod. A rectangular plate is fixedly connected to the lifting plate. Four positioning cones penetrating through the bottom of the housing are fixedly connected to the rectangular plate.

[0015] Further, a third threaded rod is rotatably connected to the housing through a connecting plate. One end of the third threaded rod and the outer wall of the second threaded rod are fixedly connected with meshing bevel gears. An L-shaped support plate is threadedly connected to the outer wall of the third threaded rod. The flat plate is fixedly connected to the L-shaped support plate. A closing plate facing the flat plate is provided on the housing.

[0016] The technical effects and advantages of an aquaculture veterinary drug residue detection device of the present invention:

[0017] (1) By providing a lifting assembly and a replacement assembly, when it is necessary to sample water through a sampling tube, start the first motor to drive the wire reel to rotate. The wire reel releases the connecting rope from the wire reel. Under the action of gravity and the second spring, the conical block, the vertical rod, the base and the counterweight drive the sampling tube inside them to move downward through the through hole. During the downward movement, the conical filter screen leaves the connecting piece. Under the action of the first spring, the conical filter screen is arranged on the sampling tube. The sampling tube descends into the water to collect water. Then, the sampling tube is returned to its original position through the lifting assembly. Start the first electric push rod to push the sampling tube through the push plate, push the sampled sampling tube away, and push the new sampling tube to the base, achieving the purpose of automatic sampling.

[0018] (2) By providing a sealing assembly, when the sampling tube finishes sampling, it will be pushed below the hollow cylinder. Start the second motor to drive the first threaded rod to rotate. The first threaded rod will drive the rubber block and the first motor to move downward, so that the rubber block contacts the uppermost rubber plug. Start the second electric push rod to drive the round plate to move through the L-shaped plate, so that the round plate no longer blocks the rubber plug. The lowermost rubber plug will enter the sampling tube. Continue to start the second motor. Under the action of friction, the rubber plug can be driven to rotate and move downward by the rubber block, and the lowermost rubber plug is screwed into the sampling tube, achieving the purpose of automatically sealing the sampled sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 Schematic cross-sectional view of the housing in the present invention;

[0021] Figure 3 Schematic view of the structure above the flat plate in the present invention;

[0022] Figure 4 Schematic view of the first partial three-dimensional structure in the present invention;

[0023] Figure 5 Schematic view of the second partial three-dimensional structure in the present invention;

[0024] Figure 6 Schematic view of the lifting assembly in the present invention;

[0025] Figure 7 In the present invention Figure 5 Enlarged view of location A in

[0026] Figure 8 Schematic view of the sealing assembly in the present invention;

[0027] Figure 9 In the present invention Figure 8 Enlarged view of location B in

[0028] In the figure:

[0029] 1. Main body of veterinary drug residue detector; 2. Housing; 3. Electric wheel; 4. Flat plate; 5. Vertical plate; 6. First motor; 7. Wire reel; 8. Connecting rope; 9. Tapered block; 10. Vertical rod; 11. Base; 12. Counterweight; 13. L-shaped support plate; 14. Connecting piece; 15. Telescopic sleeve; 16. Tapered filter screen; 17. First spring; 18. Horizontal plate; 19. Second spring; 20. Ring plate; 21. T-shaped rod; 22. Third spring; 23. T-shaped plate; 24. Extrusion block; 25. Triangular block; 26. First electric push rod; 27. Moving plate; 28. Moving rod; 29. Pushing plate; 30. Limiting frame; 31. Telescopic support plate; 32. Second motor; 33. First threaded rod; 34. Hollow cylinder; 35. Circular plate; 36. Rubber block; 37. Rubber plug; 38. Second electric push rod; 39. L-shaped plate; 40. Circular disc; 41. Clamping plate; 42. Connecting rod; 43. Hemisphere; 44. Fixed column; 45. Third motor; 46. Second threaded rod; 47. Lifting plate; 48. U-shaped plate; 49. Positioning cone; 50. Third threaded rod; 51. Bevel gear; 52. L-shaped supporting plate. Detailed implementation manners

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Referring to Figure 1 - Figure 9 , an aquaculture veterinary drug residue detection device, including a veterinary drug residue detector main body 1, and further including:

[0032] A housing 2, the housing 2 is fixedly connected to the bottom of the veterinary drug residue detector main body 1. Four electric wheels 3 are installed at the bottom of the housing 2. A flat plate 4 is provided inside the housing 2. A plurality of sampling tubes in contact with each other are provided on the flat plate 4. A lifting assembly for driving the sampling tubes to move in the vertical direction for sampling is provided on the flat plate 4. A replacement assembly for replacing the sampling tubes and a sealing assembly for sealing the sampling tubes after sampling are also provided on the flat plate 4;

[0033] During use, place the veterinary drug residue detector main body 1 beside the aquaculture pond. The veterinary drug residue detector main body 1 walks beside the pond through the electric wheels 3. Stop when reaching a suitable position. Drive the sampling tubes to sample in the pond through the lifting assembly. After sampling, seal the sampling tubes through the sealing assembly. Drive the veterinary drug residue detector main body 1 to continue walking through the electric wheels 3. Stop when reaching the next sampling position. Replace the sampling tubes through the replacement assembly and sample again through the lifting assembly;

[0034] Among them, the veterinary drug residue detector main body 1 can be a veterinary drug residue detector, which can detect antibacterial antibiotics and sulfonamides. After sampling, the staff can detect the samples through the veterinary drug residue detector.

[0035] Referring to Figure 4 , Figure 5 and Figure 6, the lifting assembly includes two vertical plates 5 fixedly connected to the top of the flat plate 4. A first motor 6 is fixedly connected to one of the vertical plates 5. The output shaft of the first motor 6 is fixedly connected to a wire winding wheel 7. A connecting rope 8 is fixedly wound around the surface of the wire winding wheel 7. One end of the connecting rope 8 is fixedly connected to a tapered block 9. A through hole adapted to the tapered block 9 and facing the tapered block 9 is formed in the flat plate 4. Two vertical rods 10 are fixedly connected to the bottom of the tapered block 9. The bottom ends of the vertical rods 10 are fixedly connected to a base 11 located in the through hole and having the same top level as the top of the flat plate 4. A counterweight 12 located in the through hole is fixedly connected to the bottom of the base 11. One of the sampling tubes is located in the middle of the base 11. The tapered block 9, the base 11 and the through hole have the same diameter, and the diameter of the tapered block 9 is greater than the diameter of the sampling tube; before sampling, the sampling tube is located in the middle of the base 11. The first motor 6 is started, and the first motor 6 drives the wire winding wheel 7 to rotate. The rotation of the wire winding wheel 7 can release the connecting rope 8 from the wire winding wheel 7. Under the action of gravity, the tapered block 9, the sampling tube, the vertical rods 10, the base 11 and the counterweight 12 move downward, so that the sampling tube moves downward through the through hole of the flat plate 4, and the sampling tube enters the water for sampling. After sampling is completed, the sampling tube is driven to reset by the first motor 6.

[0036] Refer to Figure 5 and Figure 6 , two L-shaped support plates 13 are fixedly connected to the flat plate 4. Elastic connecting pieces 14 are fixedly connected to the L-shaped support plates 13. A filtering assembly for preventing floating objects in the water from entering the sampling tube is arranged on the tapered block 9. The filtering assembly includes a telescopic sleeve 15 fixedly connected to the bottom of the tapered block 9. A tapered filter screen 16 is fixedly connected to the bottom end of the telescopic sleeve 15. A first spring 17 sleeved outside the telescopic sleeve 15 is fixedly connected between the tapered filter screen 16 and the tapered block 9. The two connecting pieces 14 are in contact with the bottom of the tapered filter screen 16; during the downward movement of the tapered block 9 and the sampling tube, the tapered block 9 drives the tapered filter screen 16 to pass by the connecting piece 14. Under the action of the first spring 17, the tapered filter screen 16 is abutted against the top of the sampling tube. The tapered filter screen 16 presses the sampling tube tightly against the base 11, and the tapered filter screen 16 can also prevent floating objects on the water surface from entering the sampling tube during sampling. When the sampling tube resets, first the tapered block 9 passes by the connecting piece 14, then the tapered filter screen 16 passes by the connecting piece 14 to reach above it, and finally the sampling tube resets to the initial position, and the tapered filter screen 16 then falls back onto the connecting piece 14.

[0037] Refer to Figure 4 , Figure 5 and Figure 7, a cross plate 18 is fixedly connected between the two vertical plates 5. A second spring 19 in a compressed state is fixedly connected to the bottom of the cross plate 18. The bottom end of the second spring 19 is fixedly connected to an annular plate 20. The annular plate 20 is sleeved and abutted on the tapered block 9. A T-shaped rod 21 is fixedly connected to the bottom of the annular plate 20. A third spring 22 is fixedly connected to one of the vertical plates 5. One end of the third spring 22 is fixedly connected to a T-shaped plate 23. Two extrusion blocks 24 are fixedly connected to the T-shaped plate 23. A triangular block 25 is fixedly connected to the T-shaped plate 23. The T-shaped rod 21 is opposite to the inclined surface of the triangular block 25; during the downward movement of the tapered block 9 and the sampling tube, under the action of the second spring 19, the annular plate 20 has a downward pressure on the tapered block 9 to assist the sampling tube and the tapered block 9 to move downward. The annular plate 20 can drive the T-shaped rod 21 to move downward. The downward movement of the T-shaped rod 21 presses the inclined surface of the triangular block 25, thereby driving the triangular block 25 and the T-shaped plate 23 to move. The third spring 22 is stretched. The T-shaped plate 23 drives the extrusion blocks 24 to extrude the sampling tubes on both sides of the sampling tube located on the base 11, squeezing the sampling tubes on both sides to prevent them from being blocked during the downward movement of the tapered block 9. The extrusion can push the sampling tube that has completed sampling on one side to directly below the sealing assembly for sealing. During the reset process of the sampling tube after sampling, the tapered block 9 squeezes and pushes up the annular plate 20, the second spring 19 is compressed, and the annular plate 20 drives the T-shaped rod 21 to reset.

[0038] Refer to Figure 3 and Figure 5 , the replacement assembly includes a first electric push rod 26 fixedly connected to the bottom of the flat plate 4. The output end of the first electric push rod 26 is fixedly connected to a moving plate 27. A moving rod 28 is fixedly connected to the moving plate 27. One end of the moving rod 28 is fixedly connected to a push plate 29 that contacts one of the sampling tubes. Two limiting frames 30 are fixedly connected to the flat plate 4. A plurality of limiting rollers that contact the sampling tubes are installed on the limiting frames 30. The T-shaped plate 23 is slidably connected to the two limiting frames 30. The moving rod 28 slides through one of the limiting frames 30; when a new sampling tube needs to be replaced after sampling is completed, start the first electric push rod 26. The first electric push rod 26 drives the moving plate 27 to move. The moving plate 27 drives the moving rod 28 to move. The moving rod 28 drives the push plate 29 to move. The push plate 29 pushes the sampling tube to move, pushing the next new sampling tube to the middle position of the base 11. The sampling tube moves between the limiting rollers of the limiting frames 30. When it is necessary to make the sampling tubes on both sides avoid to both sides, drive the push plate 29 to move back a certain distance through the first electric push rod 26.

[0039] Refer to Figure 3 and Figure 8, the sealing assembly includes a telescopic support plate 31 fixedly connected to the flat plate 4. A second motor 32 is fixedly connected to the telescopic support plate 31. An output shaft of the second motor 32 is fixedly connected to a first threaded rod 33. The telescopic support plate 31 is fixedly connected with a hollow cylinder 34 through a connecting block. A circular plate 35 is installed at the top end of the hollow cylinder 34. The middle part of the first threaded rod 33 is in threaded connection with the circular plate 35. A rubber block 36 is fixedly connected to the bottom end of the first threaded rod 33. A plurality of rubber plugs 37 are arranged in the hollow cylinder 34. Internal threads are provided on the rubber plugs 37, and external threads adapted to the internal threads are provided in the sampling tube. After the sampling tube that has completed sampling is pushed away from the base 11, a new sampling tube enters the base 11. Due to avoidance, the sampling tube that has completed sampling will reach directly below the hollow cylinder 34. The lowermost rubber plug 37 drops into the sampling tube. The second motor 32 is started. The second motor 32 drives the first threaded rod 33 to rotate. The first threaded rod 33 can drive the rubber block 36 to move downward and rotate. The rubber block 36 presses the rubber plug 37 downward. Due to the action of friction, the rubber block 36 can drive a plurality of rubber plugs 37 to rotate, and the rubber plugs 37 are screwed into the sampling tube through the internal threads and external threads, realizing automatic sealing of the sampling tube.

[0040] Referring to Figure 8 and Figure 9 , a second electric push rod 38 is fixedly connected to the side wall of the hollow cylinder 34. An output end of the second electric push rod 38 is fixedly connected to an L-shaped plate 39. One end of the L-shaped plate 39 is fixedly connected with a circular plate 40 that slidably penetrates through the hollow cylinder 34. The circular plate 40 is located at the bottom of the lowermost rubber plug 37, and the bottom of the circular plate 40 is flush with the top of the sampling tube. After the sampling tube reaches directly below the hollow cylinder 34, the second electric push rod 38 is started. The second electric push rod 38 drives the L-shaped plate 39 to move. The L-shaped plate 39 drives the circular plate 40 to move, so that the circular plate 40 no longer blocks the rubber plug 37, enabling the lowermost rubber plug 37 to enter the sampling tube. When the screwing of the rubber plug 37 is completed and during the process of pushing away this sampling tube, the second electric push rod 38 is started to control the circular plate 40 to block the remaining rubber plugs 37.

[0041] Referring to Figure 8 and Figure 9 , two clamping plates 41 are slidably connected to the limiting frame 30. A connecting rod 42 is fixedly connected to the clamping plate 41. One end of the connecting rod 42 is fixedly connected with a hemisphere 43. Two fixing columns 44 are fixedly connected to the L-shaped plate 39. The fixing columns 44 face the curved surface of the hemisphere 43 away from the middle. During the process of the second electric push rod 38 driving the L-shaped plate 39 and the circular plate 40 to move, the L-shaped plate 39 drives the fixing columns 44 to move. The fixing columns 44 can squeeze the hemisphere 43, squeezing the two hemispheres 43 towards the middle. The hemisphere 43 drives the two clamping plates 41 through the connecting rod 42 to clamp the sampling tube to be sealed, preventing shaking during the process of screwing in the rubber plug 37.

[0042] Referring to Figure 2 Figure 2 , a stabilizing component for stabilizing the main body 1 of the veterinary drug residue detector and the housing 2 during the sampling process is provided inside the housing 2. The stabilizing component includes a third motor 45 fixedly connected to the bottom of the housing 2. The output shaft of the third motor 45 is fixedly connected with a second threaded rod 46. An elevating plate 47 is threadedly connected to the outer wall of the second threaded rod 46. A rectangular plate 48 is fixedly connected to the elevating plate 47. Four positioning cones 49 penetrating through the bottom of the housing 2 are fixedly connected to the rectangular plate 48. During the sampling process of the main body 1 of the veterinary drug residue detector, it is necessary to stabilize it. Start the third motor 45. The third motor 45 drives the second threaded rod 46 to rotate. The second threaded rod 46 drives the elevating plate 47 to move downward. The elevating plate 47 drives the rectangular plate 48 to move downward. The rectangular plate 48 drives the positioning cones 49 to move downward, so that the positioning cones 49 are inserted into the soil layer to achieve the stabilization of the main body 1 of the veterinary drug residue detector.

[0043] Referring to Figure 2 Figure 2 , a third threaded rod 50 is rotatably connected to the housing 2 through a connecting plate. One end of the third threaded rod 50 and the outer wall of the second threaded rod 46 are fixedly connected with meshing bevel gears 51. An L-shaped support plate 52 is threadedly connected to the outer wall of the third threaded rod 50. The flat plate 4 is fixedly connected to the L-shaped support plate 52. A closing plate facing the flat plate 4 is provided on the housing 2. During the insertion process of the positioning cones 49, the third motor 45 drives the third threaded rod 50 to rotate through the second threaded rod 46 and the two bevel gears 51. The third threaded rod 50 can drive the L-shaped support plate 52 and the flat plate 4 to move, so that the flat plate 4 extends out of the housing 2 to reach above the water surface for sampling.

[0044] Working principle: When in use, place the main body 1 of the veterinary drug residue detector beside the aquaculture pond. The main body 1 of the veterinary drug residue detector travels along the pond edge through the electric wheels 3. Stop when reaching a suitable position. Drive the sampling tube to sample in the pond through the lifting component. After sampling, seal the sampling tube through the sealing component. Drive the main body 1 of the veterinary drug residue detector to continue traveling through the electric wheels 3. Stop when reaching the next sampling position. Replace the sampling tube through the replacement component, and then sample again through the lifting component;

[0045] Before sampling, the sampling tube is located in the middle of the base 11. Start the first motor 6. The first motor 6 drives the wire reel 7 to rotate. The wire reel 7 can release the connecting rope 8 from the wire reel 7. Under the action of gravity, the conical block 9, the sampling tube, the vertical rod 10, the base 11 and the counterweight 12 move downward, so that the sampling tube passes through the through-hole of the flat plate 4 and moves downward. The sampling tube enters the water for sampling. After sampling, drive the sampling tube to reset through the first motor 6;

[0046] During the downward movement of the conical block 9 and the sampling tube, the conical block 9 drives the conical filter screen 16 past the connecting piece 14. Under the action of the first spring 17, the conical filter screen 16 is abutted against the top of the sampling tube. The conical filter screen 16 presses the sampling tube tightly against the base 11. The conical filter screen 16 can also prevent floating objects on the water surface from entering the sampling tube during the sampling process. When the sampling tube is reset, first the conical block 9 passes the connecting piece 14, then the conical filter screen 16 passes the connecting piece 14 to reach above it, and finally the sampling tube is reset to the initial position, and the conical filter screen 16 falls back onto the connecting piece 14 again;

[0047] During the downward movement of the conical block 9 and the sampling tube, under the action of the second spring 19, the circular ring plate 20 has a downward pressure on the conical block 9 to assist the sampling tube and the conical block 9 to move downward. The circular ring plate 20 can drive the T-shaped rod 21 to move downward. The downward movement of the T-shaped rod 21 presses the inclined surface of the triangular block 25, thereby driving the triangular block 25 and the T-shaped plate 23 to move, and the third spring 22 is stretched. The T-shaped plate 23 drives the extrusion block 24 to extrude the sampling tubes on both sides of the sampling tube located on the base 11, and squeezes the sampling tubes on both sides to prevent the conical block 9 from being blocked during the descent. The extrusion can push the sampling tube that has completed sampling on one side to directly below the sealing assembly for sealing. During the reset process of the sampling tube after sampling is completed, the conical block 9 squeezes and pushes up the circular ring plate 20, the second spring 19 is compressed, and the circular ring plate 20 drives the T-shaped rod 21 to reset;

[0048] When a new sampling tube needs to be replaced after sampling is completed, the first electric push rod 26 is started. The first electric push rod 26 drives the moving plate 27 to move. The moving plate 27 drives the moving rod 28 to move. The moving rod 28 drives the push plate 29 to move. The push plate 29 pushes the sampling tube to move, and pushes the next new sampling tube to the middle position of the base 11. The sampling tube moves between the limiting rollers of the limiting frame 30. When it is necessary to make the sampling tubes on both sides move to both sides to avoid, the push plate 29 is driven by the first electric push rod 26 to move back a certain distance;

[0049] When the sampling tube that has completed sampling is pushed away from the base 11, the new sampling tube enters the base 11. The sampling tube that has completed sampling will reach directly below the hollow cylinder 34 due to avoidance, and the lowermost rubber plug 37 falls into the sampling tube. The second motor 32 is started. The second motor 32 drives the first threaded rod 33 to rotate. The first threaded rod 33 can drive the rubber block 36 to move downward and rotate. The rubber block 36 presses the rubber plug 37 downward. Due to the action of friction, the rubber block 36 can drive a plurality of rubber plugs 37 to rotate, and screw the rubber plugs 37 into the sampling tube through internal and external threads to realize automatic sealing of the sampling tube;

[0050] After the sampling tube reaches directly below the hollow cylinder 34, start the second electric push rod 38. The second electric push rod 38 drives the L-shaped plate 39 to move, and the L-shaped plate 39 drives the disc 40 to move, so that the disc 40 no longer blocks the rubber plug 37, allowing the lowermost rubber plug 37 to enter the sampling tube. When the rubber plug 37 is screwed in completely and during the process of the sampling tube being pushed away, start the second electric push rod 38 to control the disc 40 to block the remaining rubber plugs 37;

[0051] During the process of the second electric push rod 38 driving the L-shaped plate 39 and the disc 40 to move, the L-shaped plate 39 drives the fixed column 44 to move. The fixed column 44 can squeeze the hemispheres 43, squeezing the two hemispheres 43 towards the middle. The hemispheres 43 drive the two clamping plates 41 to clamp the sampling tube to be sealed through the connecting rod 42, preventing shaking during the process of screwing in the rubber plug 37;

[0052] During the sampling process of the veterinary drug residue detector main body 1, it needs to be stabilized. Start the third motor 45. The third motor 45 drives the second threaded rod 46 to rotate. The second threaded rod 46 drives the lifting plate 47 to move downward. The lifting plate 47 drives the loop-shaped plate 48 to move downward. The loop-shaped plate 48 drives the positioning cone 49 to move downward, so that the positioning cone 49 is inserted into the soil layer to achieve the stabilization of the veterinary drug residue detector main body 1;

[0053] During the process of the positioning cone 49 being inserted, the third motor 45 drives the third threaded rod 50 to rotate through the second threaded rod 46 and the two bevel gears 51. The third threaded rod 50 can drive the L-shaped support plate 52 and the flat plate 4 to move, so that the flat plate 4 extends out of the housing 2 to above the water surface for sampling.

[0054] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claimed rights.

[0055] Finally: The above is only the preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An aquaculture veterinary drug residue detection device, comprising a veterinary drug residue detector body (1), characterized in that: Also includes: A shell (2), the shell (2) being fixedly connected to the bottom of the main body (1) of the veterinary drug residue detector, four electric wheels (3) being installed at the bottom of the shell (2), a flat plate (4) being arranged inside the shell (2), a plurality of sampling tubes contacting each other being arranged on the flat plate (4), a lifting assembly being arranged on the flat plate (4) for driving the sampling tubes to move in a vertical direction for sampling, a replacement assembly being arranged on the flat plate (4) for replacing the sampling tubes and a sealing assembly being arranged for sealing the sampling tubes after sampling is completed; The sealing assembly comprises a telescopic support plate (31) fixedly connected to a flat plate (4), a second motor (32) being fixedly connected to the telescopic support plate (31), an output shaft of the second motor (32) being fixedly connected to a first threaded rod (33), a hollow cylinder (34) being fixedly connected to the telescopic support plate (31) via a connecting block, a round plate (35) being mounted on the top of the hollow cylinder (34), the first threaded rod (33) being threadedly connected to a middle portion of the round plate (35), a rubber block (36) being fixedly connected to the bottom end of the first threaded rod (33), a plurality of rubber plugs (37) being arranged in the hollow cylinder (34), the rubber plugs (37) being provided with internal threads, and an external thread matching the internal threads being provided in the sampling tube; A second electric push rod (38) is fixedly connected to the side wall of the hollow cylinder (34); an L-shaped plate (39) is fixedly connected to the output end of the second electric push rod (38); a disc (40) that slides through the hollow cylinder (34) is fixedly connected to one end of the L-shaped plate (39); the disc (40) is located at the bottom of the lowest rubber plug (37); and the bottom of the disc (40) is flush with the top of the sampling tube.

2. The aquaculture veterinary drug residue detection equipment according to claim 1, characterized in that: The lifting assembly comprises two vertical plates (5) fixedly connected to the top of a flat plate (4), wherein a first motor (6) is fixedly connected to one of the vertical plates (5), a winding wheel (7) is fixedly connected to the output shaft of the first motor (6), a connecting rope (8) is wound and fixedly connected to the surface of the winding wheel (7), one end of the connecting rope (8) is fixedly connected to a conical block (9), a through opening which is adapted to the conical block (9) and is directly opposite to the conical block (9) is opened on the flat plate (4), two vertical rods (10) are fixedly connected to the bottom of the conical block (9), a base (11) which is located in the through opening and whose top is flush with the top of the flat plate (4) is fixedly connected to the bottom end of the vertical rod (10), a counterweight block (12) located in the through opening is fixedly connected to the bottom of the base (11), and a sampling tube is located in the middle of the base (11), the conical block (9), the base (11) and the through opening have the same diameter, and the diameter of the conical block (9) is larger than the diameter of the sampling tube.

3. The aquaculture veterinary drug residue detection equipment according to claim 2, characterized in that: Two L-shaped support plates (13) are fixedly connected to the flat plate (4), and elastic connecting plates (14) are fixedly connected to the L-shaped support plates (13). A filter assembly for preventing floating objects in the water from entering the sampling tube is provided on the conical block (9), and the filter assembly comprises a telescopic sleeve (15) fixedly connected to the bottom of the conical block (9), a conical filter screen (16) is fixedly connected to the bottom end of the telescopic sleeve (15), and a first spring (17) sleeved on the outside of the telescopic sleeve (15) is fixedly connected between the conical filter screen (16) and the conical block (9), and the two connecting plates (14) are in contact with the bottom of the conical filter screen (16).

4. The aquaculture veterinary drug residue detection equipment according to claim 3, characterized in that: A horizontal plate (18) is fixedly connected between the two vertical plates (5); a second spring (19) in a compressed state is fixedly connected to the bottom of the horizontal plate (18); a circular plate (20) is fixedly connected to the bottom end of the second spring (19); the circular plate (20) is sleeved and abutted against the conical block (9); a T-shaped rod (21) is fixedly connected to the bottom of the circular plate (20); a third spring (22) is fixedly connected to one of the vertical plates (5); one end of the third spring (22) is fixedly connected to a T-shaped plate (23); two extrusion blocks (24) are fixedly connected to the T-shaped plate (23); a triangular block (25) is fixedly connected to the T-shaped plate (23); and the T-shaped rod (21) is directly opposite to the inclined surface of the triangular block (25).

5. The aquaculture veterinary drug residue detection equipment according to claim 4, characterized in that: The replacement assembly comprises a first electric push rod (26) fixedly connected to the bottom of the flat plate (4); the output end of the first electric push rod (26) is fixedly connected to a moving plate (27); the moving plate (27) is fixedly connected to a moving rod (28); one end of the moving rod (28) is fixedly connected to a push plate (29) in contact with one of the sampling tubes; two limit frames (30) are fixedly connected to the flat plate (4); a plurality of limit rollers in contact with the sampling tubes are mounted on the limit frames (30); the T-shaped plate (23) is slidably connected to the two limit frames (30); and the moving rod (28) slides along one of the limit frames (30).

6. The aquaculture veterinary drug residue detection equipment according to claim 5, characterized in that: Two clamping plates (41) are slidably connected to the limiting frame (30), a connecting rod (42) is fixedly connected to the clamping plate (41), one end of the connecting rod (42) is fixedly connected to a hemisphere (43), and two fixing columns (44) are fixedly connected to the L-shaped plate (39), and the fixing columns (44) are directly opposite to the curved surface of the hemisphere (43) away from the middle.

7. The aquaculture veterinary drug residue detection equipment according to claim 6, characterized in that: The shell (2) is provided with a stabilizing component for stabilizing the veterinary drug residue detector body (1) and the shell (2) during the sampling process, and the stabilizing component includes a third motor (45) fixedly connected to the bottom of the shell (2), the output shaft of the third motor (45) is fixedly connected to a second threaded rod (46), the outer wall of the second threaded rod (46) is threadedly connected to a lifting plate (47), the lifting plate (47) is fixedly connected to a circular plate (48), and the circular plate (48) is fixedly connected to four positioning cones (49) that pass through the bottom of the shell (2).

8. The aquaculture veterinary drug residue detection equipment according to claim 7, characterized in that: A third threaded rod (50) is rotatably connected to the housing (2) via a connecting plate; one end of the third threaded rod (50) and the outer wall of the second threaded rod (46) are fixedly connected with mutually meshing bevel gears (51); the outer wall of the third threaded rod (50) is threadedly connected with an L-shaped support plate (52); the flat plate (4) is fixedly connected to the L-shaped support plate (52); and a closing plate facing the flat plate (4) is provided on the housing (2).

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