Sample extraction device for detecting veterinary drug residues in animal-derived food

Abstract

The utility model discloses a sample extraction device for detecting veterinary drug residues in animal-derived food, which comprises an extraction container internally and transversely provided with a partition plate, and the partition plate divides the internal space of the extraction container into a lower chamber and an upper chamber which are independent from each other; a driven magnetic disc provided with a rolling supporting part and a stirring rod is arranged in the upper chamber, the driven magnetic disc is movably placed on the partition plate through the rolling supporting part, and a rotatable driving magnetic disc corresponding to the driven magnetic disc is arranged in the lower chamber; and in a rotating state of the driving magnetic disk, the driven magnetic disk with the stirring rod is driven to rotate along with the driving magnetic disk through a magnetic attraction effect so as to stir the veterinary drug solvent in the upper chamber. According to the utility model, the driving magnetic disk magnetically attracts the driven magnetic disk to rotate to execute stirring operation, so that the stirring component is in a magnetic attraction assembly relationship convenient to disassemble relative to the extraction container, and the driven magnetic disk is convenient to disassemble and clean.

Description

Technical Field

[0001] This utility model belongs to the field of veterinary drug residue detection technology in animal-derived food, and particularly relates to a sample extraction device for detecting veterinary drug residues in animal-derived food. Background Technology

[0002] In the sample extraction step of animal-derived veterinary drug residue detection, the principle is to use an appropriate solvent (such as methanol, acetonitrile, etc.) in a stirrer to extract the veterinary drug residues from the sample. Stirring can promote the sample and the extraction solvent to mix and contact fully, so that the veterinary drug residues in the sample can be dissolved quickly. Since the stirring component in the stirrer is rotated and installed at the bottom, the stirring component is difficult to disassemble when cleaning the stirrer, making cleaning inconvenient and affecting the cleanliness of the cleaning. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a sample extraction device for detecting veterinary drug residues in animal-derived food. The device uses a drive disk to magnetically attract and rotate the driven disk to perform a stirring operation, so that the stirring component is in a magnetically attracted assembly relationship with the extraction container, which is easy to disassemble and clean.

[0004] Technical solution: To achieve the above objectives, this utility model provides a sample extraction device for detecting veterinary drug residues in animal-derived food, which includes an extraction container with an internal horizontal partition, the partition dividing the internal space of the extraction container into an independent lower chamber and an upper chamber.

[0005] The upper chamber is equipped with a driven disk with a rolling support and a stirring rod. The driven disk is movably placed on the partition via the rolling support. A rotatable drive disk is provided in the lower chamber corresponding to the driven disk. When the drive disk is rotating, the driven disk with a stirring rod is driven to rotate accordingly through magnetic attraction to stir the veterinary drug solvent in the upper chamber.

[0006] Furthermore, the stirring rod is vertically positioned on the upper surface of the driven disk.

[0007] Furthermore, the stirring rods on the driven disk have multiple rods arranged in a circumferential array.

[0008] Furthermore, the length of the stirring rod is adjustable to accommodate the height of the solvent level in the upper chamber.

[0009] Furthermore, the stirring rod and the driven disk are detachably installed.

[0010] Furthermore, the stirring rod is composed of a stirring cylinder and a stirring rod body connected by threads, and the stirring rod body and the stirring cylinder body are connected to each other by threads to realize the length adjustment of the stirring rod.

[0011] Furthermore, the cylinder wall of the stirring cylinder is provided with a leakage port to form a hollow cylinder wall.

[0012] Furthermore, the rolling support includes a ball seat and a ball that rolls freely within the ball seat. The driven disk has a corresponding rolling hole. The ball seat is fixedly installed relative to the driven disk by a swivel screw, so that the bottom of the ball protrudes from the rolling hole.

[0013] The lower chamber is equipped with a rotary drive unit corresponding to the drive disk.

[0014] Beneficial effects: This utility model promotes the full mixing and contact between the sample and the extraction solvent by setting a drive disk magnetically attracted and driven disk to rotate in the upper chamber of the extraction container to perform the stirring operation. This allows the veterinary drug residues in the sample to dissolve quickly. While ensuring the stirring operation, the stirring component is in a magnetically attracted assembly relationship with the extraction container for easy disassembly. This facilitates the disassembly and cleaning of the driven disk, improving cleaning efficiency and ensuring cleanliness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the driven disk, the rolling support, and the stirring rod. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 and Figure 2 As shown, a sample extraction device for detecting veterinary drug residues in animal-derived food includes an extraction container 1 with an internal horizontal partition 2. The partition 2 divides the internal space of the extraction container 1 into an independent lower chamber 1a and an upper chamber 1b. A driven disk 4 equipped with a rolling support 5 and a stirring rod 7 is disposed in the upper chamber 1b. The driven disk 4 is movably supported on the partition 2 via the rolling support 5. A rotatable drive disk 3 is magnetically attached to the driven disk 4 in the lower chamber 1a. When the drive disk 3 rotates, it magnetically drives the driven disk 4, equipped with the stirring rod 7, to rotate accordingly, thereby stirring the veterinary drug solvent in the upper chamber 1b. This invention promotes thorough mixing and contact between the sample and the extraction solvent by setting the drive disk 3 in the upper chamber 1b of the extraction container 1 to magnetically attract the driven disk 4 to rotate and perform stirring operations. This allows for rapid dissolution of veterinary drug residues in the sample. While ensuring the stirring operation, the device also maintains a magnetically attached relationship between the stirring components and the extraction container 1 for easy disassembly and cleaning, improving cleaning efficiency and ensuring cleanliness.

[0019] More specifically, such as Figure 1 and Figure 2 As shown, the space above the upper chamber 1b of the driven disk 4 is the main stirring space. Therefore, the stirring rod 7 is vertically arranged on the upper surface of the driven disk 4. In order to improve the stirring efficiency and enhance the stirring degree, the stirring rod 7 on the driven disk 4 has multiple rods arranged in a circumferential array.

[0020] It is worth noting that the length of the stirring rod 7 is adjustable. By adjusting the length of the stirring rod 7 to adapt to the height of the solvent liquid level in the upper chamber 1b, the overall coverage of the stirring is improved, and the stirring efficiency and effect are enhanced.

[0021] like Figure 2 As shown, the stirring rod 7 and the driven disk 4 are detachably installed, facilitating cleaning of the stirring rod 7. The bottom of the stirring cylinder 71 is provided with a threaded structure 7.1, and the driven disk 4 is provided with a threaded mounting hole 41. The driven disk 4 is detachably installed relative to the driven disk 4 through the threaded engagement between the threaded structure 7.1 and the threaded mounting hole 41. The stirring rod 7 consists of a threadedly connected stirring cylinder 71 and a stirring rod body 72. The stirring rod body 72 and the stirring cylinder 71 are connected by threads to achieve length adjustment of the stirring rod 7, which is very convenient and reliable. For ease of operation, a handle 7.2 is provided at the top of the stirring rod body 72. To prevent liquid accumulation inside the stirring cylinder 71, a drainage port 7.3 is provided in the cylinder wall of the stirring cylinder 71, forming a perforated cylinder wall.

[0022] like Figure 2 As shown, the rolling support 5 includes a ball bearing seat 51 and balls 52 that are freely rolled within the ball bearing seat 51. The driven disk 4 has a corresponding rolling hole 40. The ball bearing seat 51 is fixedly installed relative to the driven disk 4 by a swivel screw 50, allowing the bottom of the balls 52 to protrude from the rolling hole 40. The rolling support 5 adopts a ball bearing structure design, which provides greater rolling freedom, improves the flexibility of the driven disk 4, and ensures the smooth rotation of the driven disk 4 following the drive disk 3.

[0023] A rotary drive unit 6 corresponding to the drive disk 3 is provided in the lower chamber 1a. The rotary drive unit 6 is preferably a drive motor.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sample extraction device for detecting veterinary drug residues in animal-derived food, comprising an extraction container (1) with an internal horizontal partition (2), wherein the partition (2) divides the internal space of the extraction container (1) into an independent lower chamber (1a) and an upper chamber (1b); Its features are: The upper chamber (1b) is provided with a driven disk (4) equipped with a rolling support (5) and a stirring rod (7). The driven disk (4) is movably placed on the partition (2) through the rolling support (5). A rotatable drive disk (3) is provided in the lower chamber (1a) corresponding to the driven disk (4). When the drive disk (3) is rotating, it drives the driven disk (4) equipped with the stirring rod (7) to rotate with the magnetic attraction, so as to stir the veterinary drug solvent in the upper chamber (1b).

2. The sample extraction device for detecting veterinary drug residues in animal-derived food according to claim 1, characterized in that: The stirring rod (7) is vertically positioned on the upper surface of the driven disk (4).

3. The sample extraction device for detecting veterinary drug residues in animal-derived food according to claim 2, characterized in that: The stirring rod (7) on the driven disk (4) has multiple rods arranged in a circumferential array.

4. The sample extraction device for detecting veterinary drug residues in animal-derived food according to claim 2, characterized in that: The length of the stirring rod (7) is adjustable, and the length of the stirring rod (7) can be adjusted to adapt to the height of the solvent liquid level in the upper chamber (1b).

5. The sample extraction device for detecting veterinary drug residues in animal-derived food according to claim 4, characterized in that: The stirring rod (7) and the driven disk (4) are detachably installed.

6. The sample extraction device for detecting veterinary drug residues in animal-derived food according to claim 5, characterized in that: The stirring rod (7) is composed of a stirring cylinder (71) and a stirring rod (72) connected by threads. The stirring rod (72) and the stirring cylinder (71) are connected by threads to each other to achieve the length adjustment of the stirring rod (7).

7. The sample extraction device for detecting veterinary drug residues in animal-derived food according to claim 6, characterized in that: The stirring cylinder (71) has a perforated cylinder wall with a drain outlet (7.3).

8. The sample extraction device for detecting veterinary drug residues in animal-derived food according to claim 1, characterized in that: The rolling support (5) includes a ball seat (51) and a ball (52) that is freely rolled in the ball seat (51). The driven disk (4) is provided with a corresponding rolling hole (40). The ball seat (51) is fixedly installed relative to the driven disk (4) by a screw (50) with a swivel joint, so that the bottom of the ball (52) is exposed from the rolling hole (40).

9. The sample extraction device for detecting veterinary drug residues in animal-derived food according to claim 1, characterized in that: A rotary drive unit (6) corresponding to the drive disk (3) is provided in the lower chamber (1a).

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