A sampling device for food pesticide residue detection

Abstract

The utility model relates to food detection field discloses a kind of sampling devices for food pesticide residue detection, including base, the base top is fixedly connected with multiple samplers, multiple the sampler one end is equipped with detachable assembly;The detachable assembly includes upper disassembly piece, the left and right sides of the upper disassembly piece are all provided with sliding slot, the sliding slot inside is fixedly connected with disassembly block, the left and right sides of the disassembly block are all fixedly connected with spring, the other end of the spring is fixedly connected with pinch block, the left and right sides of the pinch block are all fixedly connected with disassembly block, the left and right sides of the upper disassembly piece are all fixedly connected with magnetic attraction slot.The utility model in, detachable assembly is disassembled with pinch block, spring cooperation disassembly block and disassembly buckle, realize quick disassembly and assembly;Magnetic attraction slot and magnetic attraction block enhance connection stability.Sample tube cleaning replacement is convenient, prevent sample cross-contamination, simplify maintenance, improve operating efficiency and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of food testing, and in particular to a sampling device for detecting pesticide residues in food. Background Technology

[0002] Sampling devices for pesticide residue detection in food are specialized equipment for accurately collecting food samples. The core components include sampling heads adapted to different foods, a contamination-proof storage chamber, and an operating rod. Adopting a sterile design, they enable quantitative sampling, avoiding cross-contamination and sample loss, ensuring sample representativeness, and providing accurate initial samples for subsequent laboratory testing. They are widely used in pesticide residue detection of agricultural products and processed foods.

[0003] The device typically includes: a sampling head adapted to different foods, a sterile storage test tube with a sealed cap, a knob for adjusting the sampling volume, an easy-to-hold operating lever, and disinfectant wipes or a special brush for cleaning. Some also include a graduated scale for quantitative sampling.

[0004] Currently, most traditional equipment does not use detachable components; sampling parts are mostly fixed connections, requiring complete disassembly for replacement, which is cumbersome and time-consuming. Incomplete cleaning can easily lead to cross-contamination of samples, affecting detection accuracy. Furthermore, the lack of magnetic or snap-fit ​​structures results in poor connection stability of sampling parts, making maintenance difficult and severely limiting sampling efficiency. Traditional equipment requires manual mixing of food samples, which is not only time-consuming and labor-intensive but also makes it difficult to ensure sample uniformity, resulting in insufficient representativeness of collected samples, large deviations in test results, and easy spillage or contamination of samples. The poor stability of manual operation also reduces the reliability of sampling and testing. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sampling device for detecting pesticide residues in food, which aims to improve the problems of cumbersome and time-consuming operation and insufficient representativeness of the collected samples in traditional equipment in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sampling device for detecting pesticide residues in food includes a base, a plurality of samplers are fixedly connected to the top of the base, and a detachable component is installed at one end of each of the plurality of samplers.

[0008] The detachable component includes an upper detachable part, on both the left and right sides of the upper detachable part, a sliding groove is provided, a detachable stop block is fixedly connected inside the sliding groove, a spring is fixedly connected to both the left and right sides of the detachable stop block, a pinch block is fixedly connected to the other end of the spring, a detachable block is fixedly connected to both the left and right sides of the pinch block, and a magnetic suction groove is fixedly connected to both the front and rear sides of the upper detachable part.

[0009] As a further description of the above technical solution:

[0010] A motor is fixedly connected inside the base. A rotating ring one is fixedly connected to the drive end of the motor. A rocker arm is fixedly connected to the outer wall of the rotating ring one. A rotating ring two is fixedly connected to the top of the rocker arm. A central shaft is rotatably connected to the rotating ring two.

[0011] As a further description of the above technical solution:

[0012] The detachable component also includes a lower detachment part, on which magnetic blocks are fixedly connected to the front and rear sides of the top of the lower detachment part, and the outer wall of the magnetic blocks is slidably connected to the inside of the magnetic groove.

[0013] As a further description of the above technical solution:

[0014] The top of the lower disassembly component is fixedly connected with four disassembly buckles, and the inner wall of the disassembly buckles abuts against the outer wall of the disassembly block.

[0015] As a further description of the above technical solution:

[0016] A swing barrel is fixedly connected to the top of the central axis, and a rotating rod is rotatably connected to the front and rear sides of the middle of the swing barrel. A swing frame is fixedly connected to the other end of the rotating rod.

[0017] As a further description of the above technical solution:

[0018] The swing frame is rotatably connected to two rotating rods on its left and right sides. The other end of the rotating rod is fixedly connected to a fixed frame. The bottom of the fixed frame is fixedly connected to the left and right sides of the motor.

[0019] As a further description of the above technical solution:

[0020] The bottom of the lower disassembly component is fixedly connected to a fixing base, and a sampling tube is fixedly connected to the fixing base.

[0021] As a further description of the above technical solution:

[0022] The top of the swing bucket is threaded with a bucket lid.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the detachable component, through the combination of a pinch block, a spring, a disassembly block, and a disassembly buckle, enables the rapid assembly and disassembly of the upper and lower detachable parts; the magnetic groove and magnetic block enhance the connection stability. This facilitates the replacement and cleaning of the sampling tube, effectively avoids cross-contamination of samples, simplifies the device maintenance process, and significantly improves sampling efficiency and operational flexibility.

[0025] 2. In this utility model, the shaker is driven by a motor, which drives the central shaft and the shaker bucket to swing through transmission components such as the rotating ring and the swing rod; the rotating rod, the swing frame, and the fixed frame work together to ensure stable swinging. This allows the food in the bucket to be thoroughly mixed, ensuring that the sample collected by the sampler is more representative. The bucket lid is sealed to prevent contamination, effectively improving sampling accuracy and operational stability. Attached Figure Description

[0026] Figure 1 This is a main body diagram of a sampling device for detecting pesticide residues in food proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the rocker arm of a sampling device for detecting pesticide residues in food proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the swing frame of a sampling device for detecting pesticide residues in food proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the sampling tube of a sampling device for detecting pesticide residues in food proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the upper detachable component of a sampling device for detecting pesticide residues in food, as proposed in this utility model.

[0031] Figure 6 This is a schematic diagram of the lower disassembly component of a sampling device for detecting pesticide residues in food, as proposed in this utility model.

[0032] Figure 7 This is a schematic diagram of the structure of the swing bucket of a sampling device for detecting pesticide residues in food proposed in this utility model.

[0033] Legend:

[0034] 1. Base; 2. Sampler; 3. Upper disassembly component; 4. Sliding groove; 5. Disassembly stop; 6. Spring; 7. Kneading block; 8. Disassembly block; 9. Motor; 10. Rotating ring one; 11. Rocking rod; 12. Rotating ring two; 13. Central shaft; 14. Magnetic suction groove; 15. Lower disassembly component; 16. Magnetic suction block; 17. Disassembly buckle; 18. Rocking bucket; 19. Rotating rod one; 20. Rocking frame; 21. Rotating rod two; 22. Fixing frame; 23. Fixing base; 24. Sampling tube; 25. Bucket lid. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Reference Figure 1 , Figures 4-6 An embodiment of this utility model is provided: a sampling device for detecting pesticide residues in food, including a base 1, which serves as a support, and a plurality of samplers 2 are fixedly connected to the top of the base 1. The samplers 2 perform sampling, and a detachable component is fixedly connected to one end of the plurality of samplers 2.

[0037] The detachable component includes an upper detachable part 3, which is the upper part of the component. The upper detachable part 3 has sliding grooves 4 on both its left and right sides for the component to slide. A detachment stop 5 is fixedly connected inside the sliding groove 4. A detachment stop 5 is limited by a spring 6. Springs 6 are fixedly connected to both sides of the detachment stop 5, providing elastic force. A pinch block 7 is fixedly connected to the other end of the spring 6, facilitating manual operation. Detachment blocks 8 are fixedly connected to both sides of the pinch block 7, engaging with a detachment buckle 17. Magnetic grooves 14 are fixedly connected to both the front and rear sides of the upper detachable part 3. The suction groove 14 accommodates the magnetic block 16. The detachable component also includes a lower detachment part 15, which is the lower part of the component. The magnetic blocks 16 are fixedly connected to the front and rear sides of the top of the lower detachment part 15. The magnetic blocks 16 enhance the connection. The outer wall of the magnetic blocks 16 is slidably connected to the inside of the magnetic groove 14. The magnetic blocks 16 slide in the groove. Four detachment buckles 17 are fixedly connected to the top of the lower detachment part 15. The inner wall of the detachment buckles 17 abuts against the outer wall of the detachment block 8. A fixing seat 23 is fixedly connected to the bottom of the lower detachment part 15. A sampling tube 24 is fixedly connected to the fixing seat 23. The sampling tube 24 collects food samples.

[0038] Reference Figures 1-3 and Figure 7A motor 9 is fixedly connected inside the base 1, providing driving force. A rotating ring 10 is fixedly connected to the drive end of the motor 9, transmitting power. A rocker arm 11 is fixedly connected to the outer wall of the rotating ring 10, transmitting motion. A rotating ring 12 is fixedly connected to the top of the rocker arm 11, and a central shaft 13 is rotatably connected to the rotating ring 12. A rocker bucket 18 is fixedly connected to the top of the central shaft 13, holding the object to be inspected. A bucket lid 25 is threadedly connected to the top of the rocker bucket 18, sealing the rocker bucket 18. A rotating rod 19 is rotatably connected to the front and rear sides of the middle of the rocker bucket 18. A rocker frame 20 is fixedly connected to the other end of the rotating rod 19. A rotating rod 21 is rotatably connected to the left and right sides of the rocker frame 20, and a fixed frame 22 is fixedly connected to the other end of the rotating rod 21. The bottom of the fixed frame 22 is fixedly connected to the left and right sides of the motor 9, supporting the transmission components.

[0039] Working Principle: When sampling for pesticide residue testing in food, the first step is to assemble and disassemble the sampling tube and prepare for sampling. The operator squeezes the kneading block 7, causing the spring 6 in the sliding groove 4 to extend and retract under the constraint of the disassembly stop 5, thus moving the disassembly block 8. Then, the magnetic block 16 on the top of the lower disassembly component 15 is slid into the magnetic groove 14 of the upper disassembly component 3, simultaneously causing the disassembly buckle 17 of the lower disassembly component 15 to abut against the disassembly block 8. Through the dual fixation of magnetic attraction and snap-fit, the sampling tube 24 on the fixing seat 23 is stably assembled. If it is necessary to replace or clean the sampling tube 24, simply squeeze the kneading block 7 in the opposite direction to separate the upper disassembly component 3 and the lower disassembly component 15. This operation is convenient and avoids cross-contamination. During the preparation stage, the food to be tested is placed in the swing bucket 18, and the bucket lid 25 is tightened to seal the bucket, preventing food spillage or external contamination, laying the foundation for subsequent uniform sampling.

[0040] After starting the motor 9 inside the base 1, the device enters the power transmission and sampling stage. Motor 9 drives rotating ring 10 to rotate, which in turn drives rotating ring 12 via rocker arm 11. Rotating ring 12 then pushes the central shaft 13 to swing, causing the rocking bucket 18 at the top of the central shaft 13 to sway. The middle of the rocking bucket 18 is connected to the rocking frame 20 via rotating rod 19. The rocking frame 20 is connected to the fixed frames 22 on both sides of the motor 9 via rotating rod 21. The coordinated operation of multiple rods and frames ensures that the rocking bucket 18 swings smoothly and at a suitable angle, allowing the food inside to mix thoroughly. At this time, multiple samplers 2 penetrate into different locations inside the rocking bucket 18 through sampling tubes 24 to collect representative samples, effectively reducing sampling deviation and providing accurate initial samples for subsequent pesticide residue detection, ensuring the reliability of the test results.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sampling device for detecting pesticide residues in food, comprising a base (1), characterized in that: The base (1) is fixedly connected to a plurality of samplers (2), and a detachable component is installed at one end of each of the plurality of samplers (2); The detachable component includes an upper detachable part (3), on both the left and right sides of the upper detachable part (3) are provided with sliding grooves (4), a detachable stop block (5) is fixedly connected inside the sliding groove (4), a spring (6) is fixedly connected on both the left and right sides of the detachable stop block (5), a pinch block (7) is fixedly connected to the other end of the spring (6), a detachable block (8) is fixedly connected on both the left and right sides of the pinch block (7), and a magnetic suction groove (14) is fixedly connected to both the front and rear sides of the upper detachable part (3).

2. The sampling device for detecting pesticide residues in food according to claim 1, characterized in that: A motor (9) is fixedly connected inside the base (1). A rotating ring (10) is fixedly connected to the drive end of the motor (9). A rocker arm (11) is fixedly connected to the outer wall of the rotating ring (10). A rotating ring (12) is fixedly connected to the top of the rocker arm (11). A central shaft (13) is rotatably connected to the rotating ring (12).

3. The sampling device for detecting pesticide residues in food according to claim 1, characterized in that: The detachable component also includes a lower detachable part (15), on which magnetic blocks (16) are fixedly connected to the front and rear sides of the top of the lower detachable part (15), and the outer wall of the magnetic blocks (16) is slidably connected to the inside of the magnetic groove (14).

4. The sampling device for detecting pesticide residues in food according to claim 3, characterized in that: The top of the lower disassembly component (15) is fixedly connected with four disassembly buckles (17), and the inner wall of the disassembly buckle (17) abuts against the outer wall of the disassembly block (8).

5. A sampling device for detecting pesticide residues in food according to claim 2, characterized in that: The top of the central shaft (13) is fixedly connected to a swing barrel (18), and the front and rear sides of the middle of the swing barrel (18) are rotatably connected to a rotating rod (19), and the other end of the rotating rod (19) is fixedly connected to a swing frame (20).

6. The sampling device for detecting pesticide residues in food according to claim 5, characterized in that: The swing frame (20) is rotatably connected to the left and right sides by rotating rods two (21), and the other end of the rotating rods two (21) is fixedly connected to a fixed frame (22). The bottom of the fixed frame (22) is fixedly connected to the left and right sides of the motor (9).

7. A sampling device for detecting pesticide residues in food according to claim 3, characterized in that: The bottom of the lower disassembly component (15) is fixedly connected to a fixing seat (23), and the fixing seat (23) is fixedly connected to a sampling tube (24).

8. A sampling device for detecting pesticide residues in food according to claim 5, characterized in that: The top of the swing bucket (18) is threaded with a bucket lid (25).

Images