Quantitative sampling device for detecting veterinary drug residues in infant complementary food

Abstract

The utility model discloses a kind of quantitative sampling devices for infant auxiliary food veterinary drug residue detection, including outer sleeve, sampling cylinder is slidably installed in the bottom of outer sleeve, the outer surface of sampling cylinder is equipped with sampling port, the inside of sampling cylinder is equipped with sampling bin, the inside damping sliding of sampling cylinder is installed with adjusting sleeve, the top outer surface of adjusting sleeve is fixed with adjusting block, and the adjusting block is located in the inside of sampling port.The utility model changes the area that adjusting sleeve shields sampling port by the damping sliding of adjusting sleeve inside sampling cylinder, so as to change the capacity that sampling cylinder inside can accommodate sample, realize the quantitative sampling of infant auxiliary food, without real-time observation to the quantity of sampling in sampling process by artificial, shorten sampling time, so as to improve detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of infant supplementary food technology, specifically a quantitative sampling device for detecting veterinary drug residues in infant supplementary foods. Background Technology

[0002] Infant complementary foods refer to cereal-based complementary foods and canned complementary foods for infants aged 6-36 months, as well as complementary nutritional supplements for infants aged 6-36 months and children aged 37-60 months. Based on the safety of infant complementary foods, substances that harm the nutrition and health of infants should not be used in them. Necessary testing should be conducted on potentially harmful substances in raw and auxiliary materials. Therefore, veterinary drug residue testing is required for infant complementary foods.

[0003] The current sampling process for detecting veterinary drug residues in infant formula has significant shortcomings. Most existing sampling devices rely on manual, real-time observation of the sampling volume. This method is not only inefficient but also carries a high risk of error. Since testing needs to be repeated, manual observation of the sampling volume further increases sampling time, leading to a significant decrease in overall testing efficiency. Furthermore, manual operation is susceptible to factors such as fatigue and distraction, which can affect the accuracy and consistency of sampling.

[0004] Furthermore, existing sampling devices generally suffer from simple structures and limited functions, making it difficult to meet the complex needs of veterinary drug residue testing in infant formula. For example, CN221945647U discloses a quantitative sampling device for food testing. While it employs a sampling and measuring mechanism to ensure quantitative liquid extraction and improve the rigor of the test, its control over key parameters such as sampling speed and pressure is limited, making it impossible to flexibly adjust to different types and characteristics of infant formula. Moreover, with the continuous expansion of the infant formula market and increasingly stringent regulatory requirements, the demands for testing efficiency and accuracy are also rising. Therefore, developing a quantitative sampling device capable of automatically, accurately, and rapidly detecting veterinary drug residues in infant formula has become an urgent problem to be solved. Utility Model Content

[0005] The purpose of this invention is to provide a quantitative sampling device for detecting veterinary drug residues in infant supplementary foods, in order to solve the problems mentioned in the background art, such as the need for manual real-time observation of the sampling volume when sampling infant supplementary foods, the repeated testing, and the resulting increase in sampling time due to manual observation, which leads to a decrease in testing efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quantitative sampling device for detecting veterinary drug residues in infant supplementary foods, comprising an outer sleeve, a sampling tube slidably mounted at the bottom of the outer sleeve, a sampling port on the outer surface of the sampling tube, a sampling chamber on the inner side of the sampling tube, an adjusting sleeve slidably mounted inside the sampling tube with damping, and an adjusting block fixed on the outer surface of the top end of the adjusting sleeve, the adjusting block being located inside the sampling port.

[0007] Preferably, the length of the sampling port is smaller than the length of the adjusting sleeve, and the length of the adjusting sleeve is greater than half the length of the sampling tube.

[0008] Preferably, the inner sides of the top and bottom ends of the adjusting sleeve are provided with guide slopes, and the inclination angle of the guide slopes is forty-five degrees.

[0009] Preferably, a fixing rod is fixed to the top of the sampling tube, and an insertion hole is provided through the top of the outer sleeve, through which the fixing rod passes.

[0010] Preferably, the inner side of the bottom end of the outer sleeve is provided with a locking sealing ring groove, and a sealing ring is engaged on the inner side of the sealing ring groove.

[0011] Preferably, the sealing ring grooves are evenly distributed along the axial direction of the outer sleeve, and the thickness of the sealing ring is relative to the depth dimension of the sealing ring groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model precisely changes the area of ​​the sampling port covered by the damping sliding of the adjusting sleeve inside the sampling tube, thereby achieving precise adjustment of the sample capacity that can be accommodated inside the sampling tube, controlling the sampling error to a very small range, providing accurate and reliable samples for detection, improving the accuracy of detection results, and providing support for safety supervision. (2) Automatic setting of sampling capacity is achieved. The testing personnel only need to adjust the position of the adjusting sleeve before sampling. There is no need for manual real-time observation, which significantly shortens the sampling time, improves the testing efficiency, is suitable for large-scale testing tasks, and meets the timeliness requirements. (3) The adjustable sleeve design is highly adaptable. It can be adjusted to change the sampling port coverage area and the sample capacity inside the sampling tube by simply adjusting the position of the adjustable sleeve according to different types and characteristics of infant supplementary foods, so as to meet diverse testing needs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the outer sleeve of this utility model; Figure 3This is a schematic diagram of the sampling tube of this utility model; Figure 4 This is a schematic diagram of the structure of the adjusting sleeve of this utility model.

[0014] In the diagram: 1. Outer sleeve; 2. Sampling cylinder; 3. Sampling port; 4. Adjusting sleeve; 5. Sampling chamber; 6. Adjusting block; 7. Fixing rod; 8. Insertion hole; 9. Sealing ring; 10. Sealing ring groove; 11. Guide slope. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] like Figures 1 to 4 As shown, a quantitative sampling device for detecting veterinary drug residues in infant supplementary foods includes an outer sleeve 1, a sampling cylinder 2 slidably mounted on the bottom of the outer sleeve 1, a sampling port 3 on the outer surface of the sampling cylinder 2, a sampling chamber 5 on the inner side of the sampling cylinder 2, an adjusting sleeve 4 slidably mounted inside the sampling cylinder 2 with damping, and an adjusting block 6 fixed on the outer surface of the top of the adjusting sleeve 4. The adjusting block 6 is located inside the sampling port 3, and damping the adjusting sleeve 4 inside the sampling cylinder 2 to change the area of ​​the adjusting sleeve 4 that obstructs the sampling port 3, thereby changing the sample capacity that the sampling cylinder 2 can hold, and realizing quantitative sampling of infant supplementary foods.

[0017] The length of the sampling port 3 is less than the length of the adjusting sleeve 4, and the length of the adjusting sleeve 4 is greater than half the length of the sampling tube 2. This ensures that when the adjusting sleeve 4 is adjusted upwards with damping, there will be no gap between the bottom of the adjusting sleeve 4 and the bottom of the sampling port 3 when the bottom of the adjusting sleeve 4 is closed over the top of the sampling port 3.

[0018] The top and bottom inner sides of the adjusting sleeve 4 are provided with guide slopes 11. The inclination angle of the guide slopes 11 is 45 degrees. The presence of the guide slopes 11 ensures that after the sampling cylinder 2 is tilted, the sample taken inside the sampling chamber 5 can flow out completely from the inside of the sampling chamber 5, and no sample will remain between the end of the adjusting sleeve 4 and the inner wall of the sampling chamber 5.

[0019] A fixing rod 7 is fixed at the top of the sampling tube 2, and an insertion hole 8 is provided through the top of the outer sleeve 1. The fixing rod 7 passes through the middle of the insertion hole 8. The position of the sampling tube 2 is adjusted by the fixing rod 7, so that the sampling tube 2 can be taken out or retracted from the inside of the outer sleeve 1.

[0020] The inner side of the bottom end of the outer sleeve 1 is provided with a locking sealing ring groove 10. A sealing ring 9 is snapped into the inner side of the sealing ring groove 10. The sealing ring groove 10 is evenly distributed along the axial direction of the outer sleeve 1. The thickness of the sealing ring 9 relative to the depth dimension of the sealing ring groove 10 ensures that the bottom end of the sampling tube 2 and the outer sleeve 1 are sealed after the sampling tube 2 is completely retracted into the outer sleeve 1. When the sampling tube 2 is recycled, the sealing ring 9 can remove the sample residue attached to the outer surface of the sampling tube 2.

[0021] Working Principle: When monitoring veterinary drug residues in infant complementary foods, the storage container of the infant complementary food is first opened. Then, the fixing rod 7 is pushed, causing the sampling tube 2 to be squeezed out from the bottom of the outer sleeve 1 until the sampling port 3 is completely exposed outside the outer sleeve 1. At this time, the adjusting sleeve 4 is adjusted according to the sample amount required for testing. The adjusting sleeve 4 is slid upward by the adjusting block 6 until the adjusting sleeve 4 slides to the specified height. Then, the sampling tube 2 is placed inside the infant complementary food until the adjusting sleeve 4 is completely submerged in the infant complementary food. After the infant complementary food enters and fills the sampling chamber 5, the sampling tube 2 is taken out. At this time, the infant complementary food exceeding the top of the adjusting sleeve 4 flows out of the sampling chamber 5 from the sampling port 3, realizing quantitative sampling of the infant complementary food. Finally, the sampling tube 2 is recovered by the fixing rod 7. After recovery, the sealing ring 9 removes the infant complementary food adhering to the outer surface of the sampling tube 2. There is no need for manual real-time observation of the sample amount during the sampling process, which shortens the sampling time and improves the detection efficiency.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quantitative sampling device for detecting veterinary drug residues in infant supplementary foods, comprising an outer casing (1), characterized in that: A sampling tube (2) is slidably installed at the bottom of the outer sleeve (1). A sampling port (3) is provided on the outer surface of the sampling tube (2). A sampling chamber (5) is provided on the inner side of the sampling tube (2). An adjusting sleeve (4) is slidably installed inside the sampling tube (2). An adjusting block (6) is fixed on the outer surface of the top end of the adjusting sleeve (4). The adjusting block (6) is located inside the sampling port (3).

2. The quantitative sampling device for detecting veterinary drug residues in infant supplementary foods according to claim 1, characterized in that: The length of the sampling port (3) is less than the length of the adjusting sleeve (4), and the length of the adjusting sleeve (4) is greater than half the length of the sampling tube (2).

3. The quantitative sampling device for detecting veterinary drug residues in infant supplementary foods according to claim 2, characterized in that: The adjusting sleeve (4) has guide slopes (11) on the inner sides of both the top and bottom ends, and the inclination angle of the guide slopes (11) is forty-five degrees.

4. The quantitative sampling device for detecting veterinary drug residues in infant supplementary foods according to claim 1, characterized in that: The top of the sampling tube (2) is fixed with a fixing rod (7), and the top of the outer sleeve (1) is provided with an insertion hole (8), through which the fixing rod (7) passes.

5. The quantitative sampling device for detecting veterinary drug residues in infant supplementary foods according to claim 1, characterized in that: The inner side of the bottom end of the outer sleeve (1) is provided with a locking sealing ring groove (10), and a sealing ring (9) is snapped into the inner side of the sealing ring groove (10).

6. The quantitative sampling device for detecting veterinary drug residues in infant supplementary foods according to claim 5, characterized in that: The sealing ring grooves (10) are evenly distributed along the axial direction of the outer sleeve (1), and the thickness of the sealing ring (9) is relative to the depth dimension of the sealing ring grooves (10).

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