Sample processing device for detection of agro-veterinary residues

Abstract

This utility model discloses a sample processing device for pesticide and veterinary drug residue detection, including a device body. A collection component for liquid collection is fixedly installed on one side of the device body, and a pressing component is fixedly installed on the top of the device body. A top component for covering the device body is installed at the top of the pressing component. The pressing component includes a first fixing component and a second fixing component fixedly installed on the device body. A lead screw is rotatably installed on the second fixing component, and a pressing plate for squeezing food samples is movably installed on the lead screw. The pressing plate is located inside the device body. By installing a pressing component on the device body, this utility model allows the pesticide and veterinary drug residue detection sample processing device to press the food sample to the position of the cutting blade during use, so that the cutting blade can fully crush the food sample, greatly improving the quality of food sample processing.

Description

Technical Field

[0001] This utility model relates to the field of drug residue detection technology, specifically to a sample processing device for detecting pesticide and veterinary drug residues. Background Technology

[0002] The presence of pesticide and veterinary drug residues in agricultural and sideline products can pose a potential threat to human health. Therefore, it is necessary to test for pesticide and veterinary drug residues in agricultural and sideline products before they are sold. Before testing for pesticide and veterinary drug residues, the samples of agricultural and sideline products need to be processed to facilitate subsequent pesticide and veterinary drug residue testing.

[0003] The prior art, disclosed in CN209513376U, provides a sample pretreatment device for pesticide residue detection. It includes a base, an internal motor with its drive shaft extending out and secured with a clamp, a blade holder on top of the base, a sample processing cup on top of the blade holder, a sample processing shaft rotatably connected inside the blade holder, the lower end of the shaft penetrating the bottom of the blade holder and secured with a clamp, and the upper end penetrating the top of the blade holder and secured with a pulverizing blade and a stirring blade. A sample outlet is located at the lower end of the sample processing cup, with a discharge valve and a discharge pipe connected to it. A filter screen is placed between the discharge pipe and the sample outlet. A test bottle corresponding to the discharge pipe is placed on the base. This pesticide residue detection sample pretreatment device is easy to operate, provides good sample pretreatment effect and high processing efficiency, and facilitates sample pretreatment for pesticide residue detection.

[0004] The aforementioned patent primarily uses a combination of a pulverizing blade and a stirring blade to pulverize food samples for pretreatment. However, this method of pulverizing food samples requires the food sample and water to be placed together in the sample processing cup for stirring, and the pulverizing blade is located at the bottom of the sample processing cup. This causes some highly buoyant foods to remain on the outer edge of the sample processing cup due to buoyancy and centrifugal force, making it impossible to effectively cut the food sample. This significantly reduces the quality of food sample processing by the pretreatment device. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a sample processing device for detecting pesticide and veterinary drug residues, thereby solving the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sample processing device for pesticide and veterinary drug residue detection, comprising a device body, a collection component for liquid collection fixedly installed on one side of the device body, a pressing component fixedly installed on the top of the device body, and a top component for covering the device body installed at the top of the pressing component. The pressing component includes a first fixing component and a second fixing component fixedly installed on the device body. A lead screw is rotatably installed on the second fixing component, and a pressing plate for squeezing food samples is movably installed on the lead screw. The pressing plate is located inside the device body. The pressing plate's location inside the device body allows the movable pressing plate to quickly press the food sample, improving the efficiency of the pesticide and veterinary drug residue detection sample processing device in processing food samples.

[0007] Furthermore, a motor is fixedly mounted on the top of the second fixing component, and the output end of the motor is fixedly connected to the lead screw. A support shaft is fixedly mounted on the first fixing component, and the side of the pressing plate away from the lead screw is movably located on the support shaft. This movable location of the pressing plate on the support shaft allows the pressing plate to move up and down directly with the lead screw during rotation, improving the overall integrity of the internal structure of the pesticide and veterinary drug residue detection sample processing device.

[0008] Furthermore, the pressing plate has multiple water outlets for liquid to flow out when the pressing plate moves downwards. A drive motor is sealed inside the base plate of the device body, and a cutting blade for pulverizing food samples is fixedly mounted on the output end of the drive motor. This fixed mounting of the cutting blade allows the drive motor to directly rotate the cutting blade at high speed, improving the ease of use of the pesticide and veterinary drug residue detection sample processing device.

[0009] Furthermore, the device body includes an outer cylinder, with a fixed outer plate fixedly installed on the top of the outer cylinder. The first fixing component and the second fixing component are fixedly installed on the fixed outer plate. Side plates are fixedly installed on both sides of the outer cylinder near the collecting component, and the collecting component is fixedly installed inside the side plates. The fixed installation of the collecting component inside the side plates makes the internal structure of the pesticide and veterinary drug residue detection sample processing device more robust and reliable, thus improving the operational stability of the device.

[0010] Furthermore, the outer cylinder has a liquid outlet located at its center near the collecting assembly. A water outlet pipe is fixedly connected to the front of the outlet, and a ball valve for controlling liquid flow is adjustablely installed at the center of the water outlet pipe. This adjustable ball valve allows the user to directly control the liquid flow, improving the operability of the pesticide and veterinary drug residue detection sample processing device.

[0011] Furthermore, a limiting groove is formed at the top of the outer cylinder, and the top assembly includes a top cover. The top cover has notches on both sides for installing avoidance screws. A limiting body is fixedly installed at the bottom of the top cover, and the limiting body is located within the limiting groove at the top of the outer cylinder. The limiting body's location within the limiting groove at the top of the outer cylinder ensures a tighter connection between the internal structures of the pesticide and veterinary drug residue detection sample processing device, thereby improving the safety of its use.

[0012] Furthermore, the collection assembly includes an insertion plate located within the side plate. Locking plates are fixedly installed on both sides of the insertion plate near one end of the side plate, and these locking plates are bolted to the side plate. A fixing groove is formed at the center of the insertion plate, and a collection cup for receiving liquid is disposed within the fixing groove. The collection cup is located directly below the water outlet pipe. This placement of the collection cup directly below the water outlet pipe allows the liquid flowing from the water outlet pipe to directly enter the collection cup, improving the efficiency of liquid collection in the pesticide and veterinary drug residue detection sample processing device. Beneficial effects

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention installs a pressing component on the main body of the device, which allows the food sample to be pressed onto the cutting blade during use, so that the cutting blade can fully crush the food sample, greatly improving the quality of food sample processing by the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the sample processing device for detecting pesticide and veterinary drug residues according to this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the top component of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the pressing component of this utility model;

[0018] Figure 4 This is a partially enlarged three-dimensional structural diagram of A of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the main body of the device of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the collecting component of this utility model.

[0021] In the diagram: 1. Pressing assembly; 2. Top assembly; 3. Collection assembly; 4. Device body; 21. Top cover; 22. Notch; 23. Limiting body; 11. Motor; 12. First fixing assembly; 13. Support shaft; 14. Second fixing assembly; 15. Water outlet; 16. Pressing plate; 17. Lead screw; 41. Outer cylinder; 42. Cutting blade; 43. Fixing outer plate; 44. Limiting groove; 45. Liquid outlet; 46. Water outlet pipe; 47. Ball valve; 48. Side plate; 31. Locking plate; 32. Collection cup; 33. Fixing groove; 34. Insertion plate. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0023] Example

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6This application provides a further detailed description of the sample processing device for pesticide and veterinary drug residue detection. The device includes a main body 4, a collection component 3 for liquid collection fixedly mounted on one side of the main body 4, a pressing component 1 fixedly mounted on the top of the main body 4, and a top component 2 for covering the main body 4, which is positioned at the top of the pressing component 1. The pressing component 1 includes a first fixing component 12 and a second fixing component 14 fixedly mounted on the main body 4. A lead screw 17 is rotatably mounted on the second fixing component 14, and a pressing plate 16 for squeezing food samples is movably mounted on the lead screw 17. The pressing plate 16 is located inside the main body 4. The second fixing component 14 has a motor 11 fixedly mounted on its top. The output end of the motor 11 is fixedly connected to the lead screw 17. The first fixing component 12 has a support shaft 13 fixedly mounted on it. The pressing plate 16 is movably located on the support shaft 13 on the side away from the lead screw 17. The pressing plate 16 has multiple water outlet holes 15 for liquid to flow out when the pressing plate 16 moves downward. The bottom plate of the device body 4 has a drive motor sealed inside it. The output end of the drive motor has a cutter 42 for crushing food samples fixedly mounted on it. The device body 4 includes an outer cylinder 41. A fixed outer plate 43 is fixedly installed on the top. The first fixing component 12 and the second fixing component 14 are fixedly installed on the fixed outer plate 43. Side plates 48 are fixedly installed on both sides of the outer cylinder 41 near the collecting component 3. The collecting component 3 is fixedly installed inside the side plates 48. A liquid outlet 45 is opened at the center of the side of the outer cylinder 41 near the collecting component 3 for liquid outflow. A water outlet pipe 46 is fixedly connected to the front of the liquid outlet 45. A ball valve 47 for controlling liquid flow is adjustablely installed at the center of the water outlet pipe 46. A limit groove 44 is opened at the top of the outer cylinder 41. The top component 2 includes a top... The top cover 21 has notches 22 on both sides for installing the avoidance screw 17. The bottom of the top cover 21 is fixedly installed with a limiting body 23, which is located in the limiting groove 44 at the top of the outer cylinder 41. The collecting assembly 3 includes an insertion plate 34 located in the side plate 48. Locking plates 31 are fixedly installed on both sides of the insertion plate 34 near the side plate 48. The locking plates 31 are fixedly installed to the side plate 48 by bolts. A fixing groove 33 is provided in the center of the insertion plate 34. A collecting cup 32 for receiving liquid is provided in the fixing groove 33. The collecting cup 32 is located directly below the water outlet pipe 46.

[0025] Since the pressing plate 16 is threadedly connected to the lead screw 17, and the other end of the pressing plate 16 is movably located on the support shaft 13, when the lead screw 17 rotates, the pressing plate 16 will move up and down accordingly along the lead screw 17.

[0026] The size of the water outlet 15 allows liquid to pass through, but the food sample cannot pass through the water outlet 15. Therefore, when the entire pressing plate 16 moves down, the liquid will flow upward along the water outlet 15, while the food sample will be pushed downward by the pressing plate 16 until the food sample is cut and crushed by the cutting blade 42.

[0027] The device body 4 has a sealed drive motor installed inside the bottom plate. The output end of the drive motor is fixedly equipped with a cutting blade 42 for crushing food samples. This prevents water from entering the drive motor and allows the drive motor to rotate at high speed with the cutting blade 42.

[0028] The working principle of this utility model is explained below: Unless otherwise specified, all internal mechanical structures of the pesticide and veterinary drug residue detection sample processing device are fixed by threads. To allow for a more intuitive observation of the technical features, bolt connections are appropriately concealed in the diagram. When using the pesticide and veterinary drug residue detection sample processing device, the user first places water and the food sample to be processed into the outer cylinder 41. Then, the user activates the cutting blade 42 via the drive motor inside the bottom plate of the outer cylinder 41. At this time, the user starts the motor 11, which directly drives the lead screw 17 to rotate. The rotating lead screw 17 moves the pressing plate 16 downwards. Simultaneously, the liquid moves upwards through the water outlet 15, while the food sample is pressed down by the pressing plate 16. The device continues to move downwards until the food sample is completely pulverized by the cutting blade 42. At this point, the user starts the motor 11 and moves the pressing plate 16 back up above the outer cylinder 41. The user then adds the extraction liquid into the outer cylinder 41. After a period of time, the user turns the ball valve 47 and allows the liquid in the outer cylinder 41 to enter the collection cup 32 through the water outlet pipe 46, thus completing the food sample processing. Through the cooperation of the above structure, the pesticide and veterinary drug residue detection sample processing device can allow the cutting blade to fully pulverize the food sample during use, greatly improving the quality of food sample processing and enhancing the overall practicality of the device.

[0029] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A sample processing device for detecting pesticide and veterinary drug residues, characterized in that, The device includes a main body (4), a collection component (3) for liquid collection is fixedly installed on one side of the main body (4), a pressing component (1) is fixedly installed on the top of the main body (4), a top component (2) for covering the main body (4) is limited on the top of the pressing component (1), the pressing component (1) includes a first fixing component (12) and a second fixing component (14) fixedly installed on the main body (4), a lead screw (17) is rotatably installed on the second fixing component (14), and a pressing plate (16) for squeezing food samples is movably installed on the lead screw (17), the pressing plate (16) is located inside the main body (4).

2. The sample processing device for pesticide and veterinary drug residue detection according to claim 1, characterized in that: The second fixing component (14) has a motor (11) fixedly installed on its top. The output end of the motor (11) is fixedly connected to the lead screw (17). The first fixing component (12) has a support shaft (13) fixedly installed on its top. The pressing plate (16) is located on the support shaft (13) on the side away from the lead screw (17).

3. The sample processing device for pesticide and veterinary drug residue detection according to claim 2, characterized in that: The pressing plate (16) is provided with multiple water outlet holes (15), which are used for the liquid to flow out when the pressing plate (16) moves downward. A drive motor is sealed and installed in the bottom plate of the device body (4), and a cutting blade (42) for crushing food samples is fixedly installed at the output end of the drive motor.

4. The sample processing device for pesticide and veterinary drug residue detection according to claim 1, characterized in that: The device body (4) includes an outer cylinder (41), a fixed outer plate (43) is fixedly installed on the top of the outer cylinder (41), the first fixing component (12) and the second fixing component (14) are fixedly installed on the fixed outer plate (43), and side plates (48) are fixedly installed on both sides of the outer cylinder (41) near the collecting component (3), and the collecting component (3) is fixedly installed inside the side plates (48).

5. The sample processing device for pesticide and veterinary drug residue detection according to claim 4, characterized in that: The outer cylinder (41) has a liquid outlet (45) at the center of the side near the collection assembly (3) for liquid outflow. A water outlet pipe (46) is fixedly connected to the front of the liquid outlet (45). A ball valve (47) for controlling liquid flow is installed at the center of the water outlet pipe (46).

6. The sample processing device for pesticide and veterinary drug residue detection according to claim 4, characterized in that: The outer cylinder (41) has a limiting groove (44) at the top. The top component (2) includes a top cover (21). The top cover (21) has notches (22) on both sides for installing the avoidance screw (17). A limiting body (23) is fixedly installed at the bottom of the top cover (21). The limiting body (23) is located in the limiting groove (44) at the top of the outer cylinder (41).

7. The sample processing device for pesticide and veterinary drug residue detection according to claim 5, characterized in that: The collection assembly (3) includes an insertion plate (34) located in the side plate (48). Locking plates (31) are fixedly installed on both sides of one end of the insertion plate (34) near the side plate (48). The locking plates (31) are fixedly installed to the side plate (48) by bolts. A fixing groove (33) is provided in the center of the insertion plate (34). A collection cup (32) for receiving liquid is provided in the fixing groove (33). The collection cup (32) is located directly below the water outlet pipe (46).

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