Meat food detection comprehensive efficient multiple extraction veterinary drug residue device

Abstract

The application discloses a kind of meat food detection comprehensive efficient multiple extraction veterinary drug residue devices, belong to meat detection field, a kind of meat food detection comprehensive efficient multiple extraction veterinary drug residue device, including box and base, fixedly connected with strut between box and base, the bottom of first containing cylinder is fixedly connected with filter screen, the sidewall of first containing cylinder is attached with the inner wall of first limit ring, the bottom of box is fixedly connected with grating plate in the middle of first limit ring, the top wall of box is fixedly connected with first electric telescopic rod, and the output end of first electric telescopic rod is intermittently slid into first containing cylinder.The application is provided with first electric telescopic rod, first containing cylinder and other structures, so that the extracted components can be automatically discharged after microwave heating of the sample, and the first electric telescopic rod is extended into the first containing cylinder, so that the sample can be squeezed, and the effective components of the sample are separated.

Description

Technical Field

[0001] This invention relates to the field of meat testing technology, specifically to a comprehensive, efficient, multi-extraction device for detecting veterinary drug residues in meat products. Background Technology

[0002] Animal-derived foods refer to all edible animal tissues, as well as eggs and milk, including meat and its products (including animal organs), aquatic animal products, etc. In order to improve food safety, pesticide and veterinary drug residues need to be tested before processing.

[0003] Microwave energy is rapidly converted into heat energy, causing the temperature inside cells to rise rapidly. When the pressure inside the cell exceeds the cell's tolerance, the cell ruptures, and the active ingredients flow out of the cell and dissolve in the extraction medium at a lower temperature. After further filtration and separation, the extracted components can be obtained. Therefore, microwave extraction devices are widely used in the detection of pesticide and veterinary drug residues in animal-derived foods.

[0004] However, existing microwave extraction devices have a low degree of automation, which prevents the effective components in the sample from being fully extracted. Summary of the Invention

[0005] The purpose of this invention is to provide a comprehensive and efficient multi-extraction device for detecting veterinary drug residues in meat products, which has the advantages of high automation and sufficient extraction of effective components, and solves the problems in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a comprehensive and efficient multi-extraction veterinary drug residue detection device for meat products, comprising a housing and a base, a support rod fixedly connected between the housing and the base, a microwave generator fixedly connected to the side of the housing, a door rotatably connected to the housing, a first limiting ring fixedly connected inside the housing, a first holding cylinder placed inside the first limiting ring, a filter screen fixedly connected to the bottom of the first holding cylinder, the side wall of the first holding cylinder fitting against the inner wall of the first limiting ring, a grid plate fixedly connected to the bottom of the housing at the middle of the first limiting ring, a circular plate rotatably connected to the bottom wall of the housing for controlling the outflow of solution from the first holding cylinder, and a first electric telescopic rod fixedly connected to the top wall of the housing, the output end of the first electric telescopic rod intermittently sliding into the first holding cylinder.

[0007] Preferably, the output end of the first electric telescopic rod is fixedly connected to a vertical rod, the vertical rod is provided with a sliding groove, a first rotating cylinder is fixedly connected to the side wall of the circular plate, a first slider is fixedly connected to the inner wall of the first rotating cylinder, and the first slider is slidably connected in the sliding groove.

[0008] Preferably, a funnel is fixedly connected to the bottom of the box, and a spiral tube is fixedly connected to the bottom of the funnel.

[0009] Preferably, a first receiving cylinder and a second receiving cylinder are fixedly connected to the bottom of the box body. Both the first receiving cylinder and the second receiving cylinder are filled with cooling water. A support is fixedly connected to the bottom wall of the box body. A cooling cylinder is fixedly connected to the middle of the support. The spiral tube is fixedly connected inside the cooling cylinder. A first pipe is fixedly connected between the first receiving cylinder and the cooling cylinder. A second pipe is fixedly connected between the second receiving cylinder and the cooling cylinder.

[0010] Preferably, a shielding cylinder is fixedly connected inside the housing, and a second electric telescopic rod is fixedly connected inside the shielding cylinder. A pressure-sensitive switch for controlling the second electric telescopic rod is provided inside the bottom wall of the housing. The side wall of the circular plate intermittently abuts against the pressure-sensitive switch. A first sliding plate is fixedly connected to the output end of the second electric telescopic rod. The side wall of the first sliding plate fits against the inner wall of the first receiving cylinder. A second sliding plate is slidably connected inside the second receiving cylinder. The side wall of the second sliding plate fits against the inner wall of the second receiving cylinder. A rectangular rod is fixedly connected to the lower end face of the second sliding plate. A hole that mates with the rectangular rod is opened at the bottom of the second receiving cylinder.

[0011] Preferably, a placement platform is slidably connected to the middle of the base, a second limiting ring is fixedly connected to the upper surface of the placement platform, a second holding cylinder is placed in the middle of the second limiting ring, the second holding cylinder is located at the bottom of the spiral tube discharge end, and a nut is threadedly connected to the side wall of the second limiting ring, the nut intermittently abutting against the outer wall of the second holding cylinder.

[0012] Preferably, a spiral rod is fixedly connected to the bottom of the rectangular rod, a second rotating cylinder is rotatably connected inside the base, a second slider is fixedly connected to the inner wall of the second rotating cylinder, the second slider is slidably connected to the spiral groove on the side wall of the spiral rod, six levers are fixedly connected to the outer wall of the second rotating cylinder, and a lever plate is fixedly connected to the side wall of the placement platform, with the six levers alternately abutting against the lever plate.

[0013] Preferably, two sets of sliding rods are symmetrically fixedly connected to both sides of the placement platform. The base has sliding holes that cooperate with the sliding rods, and the sidewalls of the sliding rods fit into the sliding holes. A spring is sleeved on the sliding rod, and the two ends of the spring are fixedly connected to the base and the placement platform, respectively.

[0014] Preferably, an exhaust pipe and an air inlet pipe are fixedly connected to the base. Both the exhaust pipe and the air inlet pipe are connected to the sliding hole. Both the exhaust pipe and the air inlet pipe are equipped with a one-way valve. The end of the exhaust pipe away from the sliding hole extends into the second container.

[0015] Preferably, the bottom wall of the base has a purification chamber, in which filter cotton is fixedly connected, the air inlet pipe is connected to the purification chamber, the bottom of the placement platform is fixedly connected to a mounting frame, and the end of the mounting frame is fixedly connected to a brush block for cleaning the filter cotton.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The present invention, by setting up a first electric telescopic rod, a first holding cylinder and other structures, enables the extracted components to be automatically discharged after the sample is heated by microwave, and the first electric telescopic rod extends into the first holding cylinder to squeeze the sample, so that the effective components of the sample are separated.

[0018] 2. By setting up a first receiving cylinder, a cooling cylinder, and a second receiving cylinder, the solution flowing in the spiral tube is cooled down, which makes it easier for the cooled solution to dissolve into the extract. The spiral tube is spirally arranged, which allows the solution to flow in the spiral tube for a longer time, so that the solution has enough time to cool down.

[0019] 3. By setting up a placement platform and a second rotating cylinder, the present invention allows six levers on the side wall of the second rotating cylinder to alternately push the lever on the side wall of the placement platform when the second rotating cylinder rotates, thereby enabling the placement platform to slide. When the placement platform slides, it causes the solution and extract in the second container to shake, thereby enabling the extract to mix evenly with the solution.

[0020] 4. By setting up structures such as sliding holes, the present invention allows air to enter the second container through the exhaust pipe and blow it into the solution and extract inside, thereby further improving the mixing effect of the solution and extract. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the housing of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure at the first limiting ring of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the first electric telescopic rod of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the filter screen in this invention;

[0026] Figure 6 This is a schematic diagram of the structure of the vertical rod of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the circular plate in this invention;

[0028] Figure 8 This is a schematic diagram of the structure of the cooling cylinder of the present invention;

[0029] Figure 9 This is a schematic diagram of the structure of the base of the present invention;

[0030] Figure 10 This is a schematic diagram of the structure of the push block in this invention;

[0031] Figure 11 This is a schematic diagram of the structure of the sliding hole in this invention.

[0032] In the diagram: 1. Cabinet; 11. Microwave generator; 12. Cabinet door; 13. First electric telescopic rod; 14. Shielding cylinder; 15. First limiting ring; 16. Grille plate; 17. First holding cylinder; 18. Filter screen; 2. Vertical rod; 21. Slide groove; 22. First rotating cylinder; 23. First slider; 24. Circular plate; 25. Pressure-sensitive switch; 3. Second electric telescopic rod; 31. First sliding plate; 32. First holding cylinder; 33. First pipe; 34. Cooling cylinder; 341. Support; 35. Funnel; 36. Spiral tube; 3 7. Second pipe; 38. Second container cylinder; 39. Second sliding plate; 391. Rectangular rod; 4. Helical rod; 41. Second rotating cylinder; 42. Second slider; 43. Pulley; 44. Placement platform; 45. Second limiting ring; 46. Nut; 47. Slide rod; 471. Spring; 48. Pulley; 49. Second holding cylinder; 5. Base; 501. Support rod; 51. Sliding hole; 52. Exhaust pipe; 53. Inlet pipe; 54. One-way valve; 55. Purification chamber; 56. Filter cotton; 57. Brush block; 58. Mounting bracket. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] Reference Figures 1-6This invention provides a technical solution: a comprehensive and efficient multi-extraction veterinary drug residue detection device for meat products, comprising a housing 1 and a base 5, with a support rod 501 fixedly connected between the housing 1 and the base 5, a microwave generator 11 fixedly connected to the side of the housing 1, a door 12 rotatably connected to the housing 1, a first limiting ring 15 fixedly connected inside the housing 1, a first holding cylinder 17 placed inside the first limiting ring 15, a filter screen 18 fixedly connected to the bottom of the first holding cylinder 17, the side wall of the first holding cylinder 17 fitting against the inner wall of the first limiting ring 15, a grid plate 16 fixedly connected to the bottom of the housing 1 at the middle of the first limiting ring 15, a circular plate 24 rotatably connected inside the bottom wall of the housing 1 for controlling the outflow of solution from the first holding cylinder 17, and a first electric telescopic rod 13 fixedly connected to the top wall of the housing 1, the output end of the first electric telescopic rod 13 intermittently sliding into the first holding cylinder 17.

[0036] In use, open the cabinet door 12 and place the first holding cylinder 17 inside the first limiting ring 15. Then, place the meat to be tested into the first holding cylinder 17, add water or other necessary solvents to the first holding cylinder 17, close the cabinet door 12, start the microwave generator 11, and set the start time and temperature. The microwave generator 11 is an existing device, and its specific working principle will not be elaborated here. The cabinet body 1 and the cabinet door 12 can shield microwaves to prevent excessive microwave leakage from affecting the health of operators. After the microwave generator 11 has finished running, the first electric telescopic rod 13 starts to run. The operation of the first electric telescopic rod 13 can be controlled by a program so that when the microwave generator 11 stops running, the first electric telescopic rod 13 starts to run. When the first electric telescopic rod 13 is running, its output end extends, allowing it to enter the first container 17 and squeeze the meat inside. This separates the effective components to be extracted from the meat. The filter screen 18 at the bottom of the first container 17 allows the solution to pass through while blocking the meat, preventing larger particles from being discharged from the first container 17. The grid plate 16 provides support for the filter screen 18, preventing it from being excessively squeezed and damaged by the meat pushed by the first electric telescopic rod 13. When the circular plate 24 rotates to a position no longer at the bottom of the first container 17, the detection solution inside the first container 17 is discharged.

[0037] The output end of the first electric telescopic rod 13 is fixedly connected to a vertical rod 2, and a sliding groove 21 is provided on the vertical rod 2. A first rotating cylinder 22 is fixedly connected to the side wall of the circular plate 24, and a first slider 23 is fixedly connected to the inner wall of the first rotating cylinder 22. The first slider 23 is slidably connected in the sliding groove 21.

[0038] When the first electric telescopic rod 13 extends, the vertical rod 2, which is fixedly connected to the output end of the first electric telescopic rod 13, moves down synchronously. At this time, the vertical rod 2 slides towards the first rotating cylinder 22. In the initial state, the vertical rod 2 is inside the first rotating cylinder 22. At this time, the first slider 23 on the inner wall of the first rotating cylinder 22 is in the groove 21 on the side wall of the vertical rod 2. The groove 21 is composed of a vertical section and an arc section. When the vertical rod 2 slides down, the first slider 23 first slides in the arc section of the groove 21. At this time, the first rotating cylinder 22 can be driven to rotate. Then, the rotating first rotating cylinder 22 can drive the circular plate 24 to rotate. At this time, the circular plate 24 rotates until it is no longer directly below the first holding cylinder 17, and then the solution in the first holding cylinder 17 can be discharged.

[0039] A funnel 35 is fixedly connected to the bottom of the box 1, and a spiral tube 36 is fixedly connected to the bottom of the funnel 35.

[0040] The receiving range of the funnel 35 is equal to the outer diameter of the first holding cylinder 17, and the funnel 35 is located directly below the first holding cylinder 17, so that the discharged solution can be received by the funnel 35. Then the solution received by the funnel 35 is discharged through the spiral tube 36, and the solution can be received at the port of the spiral tube 36.

[0041] Example 2

[0042] Reference Figures 7-8 Based on Embodiment 1, the bottom of the housing 1 is further provided with a first receiving cylinder 32 and a second receiving cylinder 38 fixedly connected. Both the first receiving cylinder 32 and the second receiving cylinder 38 are filled with cooling water. A support 341 is fixedly connected to the bottom wall of the housing 1. A cooling cylinder 34 is fixedly connected to the middle of the support 341. A spiral tube 36 is fixedly connected inside the cooling cylinder 34. A first pipe 33 is fixedly connected between the first receiving cylinder 32 and the cooling cylinder 34. A second pipe 37 is fixedly connected between the second receiving cylinder 38 and the cooling cylinder 34.

[0043] Since the first container 32 and the cooling container 34 are fixedly connected by the first pipe 33, and the second container 38 and the cooling container 34 are fixedly connected by the second pipe 37, the cooling water in the first container 32 and the second container 38 can flow into the cooling container 34 through the first pipe 33 and the second pipe 37. Since the spiral tube 36 is fixedly connected into the cooling container 34, when the cooling water enters the cooling container 34, the solution flowing in the spiral tube 36 is cooled down, so that the cooled solution can easily dissolve into the extract. The spiral tube 36 is spirally arranged, so that the solution flows in the spiral tube 36 for a longer time, allowing the solution enough time to cool down.

[0044] A shielding cylinder 14 is fixedly connected inside the housing 1. A second electric telescopic rod 3 is fixedly connected inside the shielding cylinder 14. A pressure-sensitive switch 25 for controlling the second electric telescopic rod 3 is provided inside the bottom wall of the housing 1. The side wall of the circular plate 24 intermittently abuts against the pressure-sensitive switch 25. A first sliding plate 31 is fixedly connected to the output end of the second electric telescopic rod 3. The side wall of the first sliding plate 31 fits against the inner wall of the first receiving cylinder 32. A second sliding plate 39 is slidably connected inside the second receiving cylinder 38. The side wall of the second sliding plate 39 fits against the inner wall of the second receiving cylinder 38. A rectangular rod 391 is fixedly connected to the lower end face of the second sliding plate 39. A hole that mates with the rectangular rod 391 is opened at the bottom of the second receiving cylinder 38.

[0045] The shielding cylinder 14 prevents the second electric telescopic rod 3 from being interfered with by microwaves. When the circular plate 24 is fully rotated to a position not at the bottom of the first holding cylinder 17, the side wall of the circular plate 24 can contact the pressure-sensitive switch 25 and press the pressure-sensitive switch 25. At this time, the second electric telescopic rod 3, controlled by the pressure-sensitive switch 25, runs, and the first sliding plate 31 at the output end of the second electric telescopic rod 3 slides towards the lower part of the first holding cylinder 32. At this time, the cooling water in the first holding cylinder 32 is squeezed by the first sliding plate 31 and flows into the cooling cylinder 34, while the cooling water in the cooling cylinder 34 flows into the second holding cylinder 38. At this time, the second sliding plate 39 in the second holding cylinder 38 is squeezed by the cooling water and slides down, thereby storing the cooling water that has flowed through the cooling cylinder 34. When the second sliding plate 39 slides down, the rectangular rod 391 fixedly connected to the bottom of the second sliding plate 39 slides down synchronously. The rectangular rod 391 prevents the second sliding plate 39 from rotating relative to the second holding cylinder 38.

[0046] Example 3

[0047] Reference Figures 9-11 Based on Embodiment 2, a further feature is that a placement platform 44 is slidably connected to the middle of the base 5, a second limiting ring 45 is fixedly connected to the upper surface of the placement platform 44, a second holding cylinder 49 is placed in the middle of the second limiting ring 45, the second holding cylinder 49 is located at the bottom of the discharge end of the spiral tube 36, and a nut 46 is threadedly connected to the side wall of the second limiting ring 45, the nut 46 intermittently abutting against the outer wall of the second holding cylinder 49.

[0048] The placement platform 44 allows the second container 49 to be placed. The extraction liquid is pre-placed inside the second container 49. The second container 49 is placed in the middle of the second limiting ring 45, and then the nut 46 is tightened. The nut 46 then fixes the second container 49, so that the second container 49 can be stably placed on the placement platform 44.

[0049] A spiral rod 4 is fixedly connected to the bottom of the rectangular rod 391. A second rotating cylinder 41 is rotatably connected inside the base 5. A second slider 42 is fixedly connected to the inner wall of the second rotating cylinder 41. The second slider 42 is slidably connected in the spiral groove on the side wall of the spiral rod 4. Six levers 43 are fixedly connected to the outer wall of the second rotating cylinder 41. A lever plate 48 is fixedly connected to the side wall of the placement platform 44. The six levers 43 alternately abut against the lever plate 48.

[0050] When the rectangular rod 391 moves down, the spiral rod 4 fixedly connected to the bottom of the rectangular rod 391 moves down synchronously. The rectangular rod 391 is limited and does not rotate relative to the base 5. The spiral rod 4 is slidably connected inside the second rotating cylinder 41. When the spiral rod 4 slides down, the second slider 42 on the inner wall of the second rotating cylinder 41 can slide in the spiral groove on the side wall of the spiral rod 4. At this time, the second rotating cylinder 41 can rotate on the base 5. When the second rotating cylinder 41 rotates, the six levers 43 on the side wall of the second rotating cylinder 41 can alternately push the lever 48 on the side wall of the placement platform 44, thereby allowing the placement platform 44 to slide. When the placement platform 44 slides, the solution and extract in the second container 49 can shake, thereby allowing the extract to mix evenly with the solution.

[0051] Two sets of sliding rods 47 are symmetrically fixedly connected to both sides of the placement platform 44. The base 5 has a sliding hole 51 that cooperates with the sliding rod 47, and the side wall of the sliding rod 47 fits into the sliding hole 51. A spring 471 is sleeved on the sliding rod 47, and the two ends of the spring 471 are fixedly connected to the base 5 and the placement platform 44 respectively.

[0052] The two sets of sliding rods 47 limit the sliding direction of the placement platform 44. When the placement platform 44 is pushed and slides, the sliding rods 47 can slide relative to the base 5. At this time, the springs 471 on both sides of the placement platform 44 are squeezed on one side and stretched on the other side. As a result, under the restoring force of the springs 471, the vibration frequency and vibration amplitude of the placement platform 44 increase, so that the solution and extract in the second container 49 are mixed evenly.

[0053] Example 4

[0054] Reference Figures 9-11 Based on Embodiment 3, the base 5 is further provided with an exhaust pipe 52 and an intake pipe 53, both of which are connected to the sliding hole 51. Both the exhaust pipe 52 and the intake pipe 53 are provided with a one-way valve 54. The end of the exhaust pipe 52 away from the sliding hole 51 extends into the second container 49.

[0055] When the slide bar 47 slides back and forth in the sliding hole 51, it can draw in external air through the air inlet pipe 53, and then the drawn air is discharged through the exhaust pipe 52. Since the end of the exhaust pipe 52 is inside the second container 49, the air enters the second container 49 through the exhaust pipe 52 and blows the solution and extract inside, further improving the mixing effect of the solution and extract.

[0056] The bottom wall of the base 5 has a purification chamber 55, and a filter cotton 56 is fixedly connected inside the purification chamber 55. The air inlet pipe 53 is connected to the purification chamber 55. The bottom of the placement platform 44 is fixedly connected to the mounting bracket 58, and the end of the mounting bracket 58 is fixedly connected to the brush block 57 for cleaning the filter cotton 56.

[0057] The air inlet pipe 53 is connected to the purification chamber 55, so that the air in the purification chamber 55 can be drawn into the sliding hole 51. Before entering the purification chamber 55, the air is filtered by the filter cotton 56, so that the drawn air does not contain pollutants or other substances that may affect the test results and enter the second container 49. When the placement stage 44 reciprocates relative to the base 5, it can drive the mounting frame 58 to move synchronously. The brush block 57 on the mounting frame 58 can clean the filter cotton 56, so that the permeability of the filter cotton 56 is not affected. After the solution and extract in the second container 49 are mixed, the second container 49 is removed from the placement stage 44 and poured into the separatory funnel for standing and stratification. After discharge, the substance for veterinary drug residue detection is obtained.

[0058] Working Principle: This is a comprehensive, high-efficiency, multi-stage extraction device for detecting veterinary drug residues in meat products. During use, the door 12 is opened, and the first container 17 is placed inside the first limiting ring 15. Then, the meat to be tested is placed inside the first container 17, and water or other necessary solvents are added. The door 12 is closed, and the microwave generator 11 is started, with the start-up time and temperature set. The microwave generator 11 is an existing device, and its specific working principle is not detailed here. The housing 1 and door 12 shield the microwaves, preventing excessive microwave leakage that could affect the operator's health. After the microwave generator 11 has finished operating, the first electric telescopic rod 13 begins to move. The operation of the first electric telescopic rod 13 can be program-controlled, allowing the microwave generator 11 to... When the machine stops operating, the first electric telescopic rod 13 operates. When the first electric telescopic rod 13 operates, its output end extends and can then reach into the first container 17 to squeeze the meat inside the first container 17, so that the effective components to be extracted from the meat can be separated. The filter screen 18 at the bottom of the first container 17 allows the solution to pass through while blocking the meat, thereby preventing larger particles from being discharged from the first container 17. The grid plate 16 provides support for the filter screen 18, thereby preventing the filter screen 18 from being excessively squeezed and damaged by the meat pushed by the first electric telescopic rod 13. When the circular plate 24 rotates to a position no longer at the bottom of the first container 17, the detection solution inside the first container 17 is discharged.

[0059] When the first electric telescopic rod 13 extends, the vertical rod 2, which is fixedly connected to the output end of the first electric telescopic rod 13, moves down synchronously. At this time, the vertical rod 2 slides towards the first rotating cylinder 22. In the initial state, the vertical rod 2 is inside the first rotating cylinder 22. At this time, the first slider 23 on the inner wall of the first rotating cylinder 22 is in the groove 21 on the side wall of the vertical rod 2. The groove 21 is composed of a vertical section and an arc section. When the vertical rod 2 slides down, the first slider 23 first slides in the arc section of the groove 21. At this time, the first rotating cylinder 22 can be driven to rotate. Then, the rotating first rotating cylinder 22 can drive the circular plate 24 to rotate. At this time, the circular plate 24 rotates until it is no longer directly below the first holding cylinder 17, and then the solution in the first holding cylinder 17 can be discharged.

[0060] The receiving range of the funnel 35 is equal to the outer diameter of the first holding cylinder 17, and the funnel 35 is located directly below the first holding cylinder 17, so that the discharged solution can be received by the funnel 35. Then the solution received by the funnel 35 is discharged through the spiral tube 36, and the solution can be received at the port of the spiral tube 36.

[0061] Since the first container 32 and the cooling container 34 are fixedly connected by the first pipe 33, and the second container 38 and the cooling container 34 are fixedly connected by the second pipe 37, the cooling water in the first container 32 and the second container 38 can flow into the cooling container 34 through the first pipe 33 and the second pipe 37. Since the spiral tube 36 is fixedly connected into the cooling container 34, when the cooling water enters the cooling container 34, the solution flowing in the spiral tube 36 is cooled down, so that the cooled solution can easily dissolve into the extract. The spiral tube 36 is spirally arranged, so that the solution flows in the spiral tube 36 for a longer time, allowing the solution enough time to cool down.

[0062] The shielding cylinder 14 prevents the second electric telescopic rod 3 from being interfered with by microwaves. When the circular plate 24 is fully rotated to a position not at the bottom of the first holding cylinder 17, the side wall of the circular plate 24 can contact the pressure-sensitive switch 25 and press the pressure-sensitive switch 25. At this time, the second electric telescopic rod 3, controlled by the pressure-sensitive switch 25, runs, and the first sliding plate 31 at the output end of the second electric telescopic rod 3 slides towards the lower part of the first holding cylinder 32. At this time, the cooling water in the first holding cylinder 32 is squeezed by the first sliding plate 31 and flows into the cooling cylinder 34, while the cooling water in the cooling cylinder 34 flows into the second holding cylinder 38. At this time, the second sliding plate 39 in the second holding cylinder 38 is squeezed by the cooling water and slides down, thereby storing the cooling water that has flowed through the cooling cylinder 34. When the second sliding plate 39 slides down, the rectangular rod 391 fixedly connected to the bottom of the second sliding plate 39 slides down synchronously. The rectangular rod 391 prevents the second sliding plate 39 from rotating relative to the second holding cylinder 38.

[0063] The placement platform 44 allows the second container 49 to be placed. The extraction liquid is pre-placed inside the second container 49. The second container 49 is placed in the middle of the second limiting ring 45, and then the nut 46 is tightened. The nut 46 then fixes the second container 49, so that the second container 49 can be stably placed on the placement platform 44.

[0064] When the rectangular rod 391 moves down, the spiral rod 4 fixedly connected to the bottom of the rectangular rod 391 moves down synchronously. The rectangular rod 391 is limited and does not rotate relative to the base 5. The spiral rod 4 is slidably connected inside the second rotating cylinder 41. When the spiral rod 4 slides down, the second slider 42 on the inner wall of the second rotating cylinder 41 can slide in the spiral groove on the side wall of the spiral rod 4. At this time, the second rotating cylinder 41 can rotate on the base 5. When the second rotating cylinder 41 rotates, the six levers 43 on the side wall of the second rotating cylinder 41 can alternately push the lever 48 on the side wall of the placement platform 44, thereby allowing the placement platform 44 to slide. When the placement platform 44 slides, the solution and extract in the second container 49 can shake, thereby allowing the extract to mix evenly with the solution.

[0065] The two sets of sliding rods 47 limit the sliding direction of the placement platform 44. When the placement platform 44 is pushed and slides, the sliding rods 47 can slide relative to the base 5. At this time, the springs 471 on both sides of the placement platform 44 are squeezed on one side and stretched on the other side. As a result, under the restoring force of the springs 471, the vibration frequency and vibration amplitude of the placement platform 44 increase, so that the solution and extract in the second container 49 are mixed evenly.

[0066] When the slide bar 47 slides back and forth in the sliding hole 51, it can draw in external air through the air inlet pipe 53, and then the drawn air is discharged through the exhaust pipe 52. Since the end of the exhaust pipe 52 is inside the second container 49, the air enters the second container 49 through the exhaust pipe 52 and blows the solution and extract inside, further improving the mixing effect of the solution and extract.

[0067] The air inlet pipe 53 is connected to the purification chamber 55, so that the air in the purification chamber 55 can be drawn into the sliding hole 51. Before entering the purification chamber 55, the air is filtered by the filter cotton 56, so that the drawn air does not contain pollutants or other substances that may affect the test results and enter the second container 49. When the placement stage 44 reciprocates relative to the base 5, it can drive the mounting frame 58 to move synchronously. The brush block 57 on the mounting frame 58 can clean the filter cotton 56, so that the permeability of the filter cotton 56 is not affected. After the solution and extract in the second container 49 are mixed, the second container 49 is removed from the placement stage 44 and poured into the separatory funnel for standing and stratification. After discharge, the substance for veterinary drug residue detection is obtained.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A comprehensive and efficient multi-extraction veterinary drug residue detection device for meat products, comprising a housing (1) and a base (5), wherein a support rod (501) is fixedly connected between the housing (1) and the base (5), a microwave generator (11) is fixedly connected to the side of the housing (1), and a door (12) is rotatably connected to the housing (1), characterized in that: A first limiting ring (15) is fixedly connected inside the box (1). A first holding cylinder (17) is placed inside the first limiting ring (15). A filter screen (18) is fixedly connected to the bottom of the first holding cylinder (17). The side wall of the first holding cylinder (17) is in contact with the inner wall of the first limiting ring (15). A grid plate (16) is fixedly connected to the bottom of the box (1) at the middle of the first limiting ring (15). A circular plate (24) for controlling the flow of solution in the first holding cylinder (17) is rotatably connected inside the bottom wall of the box (1). A first electric telescopic rod (13) is fixedly connected to the top wall of the box (1). The output end of the first electric telescopic rod (13) slides intermittently into the first holding cylinder (17). The output end of the first electric telescopic rod (13) is fixedly connected to a vertical rod (2), and a sliding groove (21) is provided on the vertical rod (2). A first rotating cylinder (22) is fixedly connected to the side wall of the circular plate (24), and a first slider (23) is fixedly connected to the inner wall of the first rotating cylinder (22). The first slider (23) is slidably connected in the sliding groove (21). A funnel (35) is fixedly connected to the bottom of the box (1), and a spiral tube (36) is fixedly connected to the bottom of the funnel (35). The bottom of the box (1) is fixedly connected to a first receiving cylinder (32) and a second receiving cylinder (38). Both the first receiving cylinder (32) and the second receiving cylinder (38) are filled with cooling water. A support (341) is fixedly connected to the bottom wall of the box (1). A cooling cylinder (34) is fixedly connected to the middle of the support (341). The spiral tube (36) is fixedly connected inside the cooling cylinder (34). A first pipe (33) is fixedly connected between the first receiving cylinder (32) and the cooling cylinder (34). A second pipe (37) is fixedly connected between the second receiving cylinder (38) and the cooling cylinder (34). A shielding cylinder (14) is fixedly connected inside the housing (1), and a second electric telescopic rod (3) is fixedly connected inside the shielding cylinder (14). A pressure-sensitive switch (25) for controlling the second electric telescopic rod (3) is provided inside the bottom wall of the housing (1). The side wall of the circular plate (24) intermittently abuts against the pressure-sensitive switch (25). A first sliding plate (31) is fixedly connected to the output end of the second electric telescopic rod (3). The side wall of the first sliding plate (31) is in contact with the inner wall of the first receiving cylinder (32). The chute (21) is composed of a vertical section and an arc section. When the vertical rod (2) slides down, the first slider (23) first slides in the arc section of the chute (21). At this time, the first rotating cylinder (22) can be driven to rotate. Then the rotating first rotating cylinder (22) can drive the circular plate (24) to rotate. At this time, the circular plate (24) rotates until it is no longer directly below the first container (17), and then the solution in the first container (17) can be discharged. When the circular plate (24) is fully rotated to a position not at the bottom of the first container (17), the side wall of the circular plate (24) can contact the pressure-sensitive switch (25) and squeeze the pressure-sensitive switch (25). The first sliding plate (31) at the output end of the second electric telescopic rod (3) slides towards the lower part of the first container (32). At this time, the cooling water in the first container (32) is squeezed by the first sliding plate (31) and flows into the cooling cylinder (34). The second receiving cylinder (38) is slidably connected to the second sliding plate (39), the side wall of the second sliding plate (39) is in contact with the inner wall of the second receiving cylinder (38), the lower end face of the second sliding plate (39) is fixedly connected to the rectangular rod (391), and the bottom of the second receiving cylinder (38) is provided with a hole that cooperates with the rectangular rod (391). A placement platform (44) is slidably connected to the middle of the base (5). A second limiting ring (45) is fixedly connected to the upper surface of the placement platform (44). A second holding cylinder (49) is placed in the middle of the second limiting ring (45). The second holding cylinder (49) is located at the bottom of the discharge end of the spiral tube (36). A nut (46) is threadedly connected to the side wall of the second limiting ring (45). The nut (46) intermittently abuts against the outer wall of the second holding cylinder (49). The bottom of the rectangular rod (391) is fixedly connected to a spiral rod (4), and the base (5) is rotatably connected to a second rotating cylinder (41). The inner wall of the second rotating cylinder (41) is fixedly connected to a second slider (42), and the second slider (42) is slidably connected to a spiral groove on the side wall of the spiral rod (4). The outer wall of the second rotating cylinder (41) is fixedly connected to six paddle blocks (43), and the side wall of the placement platform (44) is fixedly connected to a paddle plate (48). The six paddle blocks (43) alternately abut against the paddle plate (48). Two sets of sliding rods (47) are symmetrically fixedly connected to both sides of the placement platform (44). The base (5) has a sliding hole (51) that cooperates with the sliding rod (47). The side wall of the sliding rod (47) is in contact with the sliding hole (51). A spring (471) is sleeved on the sliding rod (47). The two ends of the spring (471) are fixedly connected to the base (5) and the placement platform (44) respectively.

2. The comprehensive, efficient, multi-stage extraction device for detecting veterinary drug residues in meat products according to claim 1, characterized in that: An exhaust pipe (52) and an intake pipe (53) are fixedly connected to the base (5). Both the exhaust pipe (52) and the intake pipe (53) are connected to the sliding hole (51). Both the exhaust pipe (52) and the intake pipe (53) are equipped with a one-way valve (54). The end of the exhaust pipe (52) away from the sliding hole (51) extends into the second container (49).

3. The comprehensive, efficient, multi-stage extraction device for detecting veterinary drug residues in meat products according to claim 2, characterized in that: The bottom wall of the base (5) is provided with a purification chamber (55), and a filter cotton (56) is fixedly connected inside the purification chamber (55). The air inlet pipe (53) is connected to the purification chamber (55). The bottom of the placement platform (44) is fixedly connected with a mounting bracket (58), and the end of the mounting bracket (58) is fixedly connected with a brush block (57) for cleaning the filter cotton (56).

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