A layered sampling device for food detection

Abstract

The utility model relates to food detection technical field especially, more particularly to a layered sampling device for food detection, including arc baffle, apron, first fixed plate and mounting block, two pieces of arc baffle are symmetrically equipped, and the top fixedly connected with first clamping groove of arc baffle, the first fixed plate is opened with the through groove corresponding with the position of arc baffle, arc baffle passes through corresponding through groove, the top of mounting block is opened with the third clamping groove corresponding with the position of arc baffle, the bottom of arc baffle is connected with corresponding third clamping groove, and the inside of arc baffle is equipped with sampling mechanism. The application is through stable fixation, high -efficient comprehensive sampling, flexible pollution prevention and so on design, both guarantee sampling process stable and accurate, and also promote efficiency and coverage, also reduce pollution risk, give consideration to operation convenience, guarantee sampling quality and detection reliability comprehensively.

Description

Technical Field

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

[0002] Traditional single-layer sampling methods have many drawbacks in practice. Each sampling requires repeated insertion and removal of the tool, which not only prolongs operation time and reduces overall efficiency, but also significantly increases the risk of cross-contamination due to the tool's repeated contact with the external environment and different batches of food. If the cleaning process is not thorough, residual samples from previous samples can mix with new samples, directly causing deviations in the test data and affecting the accuracy of the results.

[0003] Furthermore, the problem is even more pronounced for highly fluid foods. The insertion and removal of sampling tools disrupts the original layering of the food, causing mixing between different areas. Components originally located in different layers or positions are disturbed, making it difficult for the final sample to accurately reflect the original distribution characteristics and quality state of the food. This renders the test results unrepresentative and unable to provide a reliable basis for quality assessment. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a stratified sampling device for food testing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stratified sampling device for food testing includes an arc-shaped baffle, a cover plate, a first fixing plate, and a mounting block. Two arc-shaped baffles are symmetrically arranged, and a first slot is fixedly connected to the top of the arc-shaped baffle. A through slot corresponding to the position of the arc-shaped baffle is opened on the first fixing plate, and the arc-shaped baffle passes through the corresponding through slot. A third slot corresponding to the position of the arc-shaped baffle is opened at the top of the mounting block, and the bottom end of the arc-shaped baffle is engaged with the corresponding third slot. A sampling mechanism is provided on the inner side of the arc-shaped baffle.

[0007] Preferably, a second slot is provided at the middle position of the top of the first fixing plate, the lower end of the cover plate is slidably connected to the first slot and the second slot, and rubber pads are installed at the contact parts of the first slot, the second slot and the cover plate.

[0008] Preferably, the sampling mechanism includes a first motor fixedly installed on one side of the top of the first fixed plate. The output end of the first motor faces downward and is keyed to a rotating rod. After rotating through the first fixed plate, the rotating rod makes rotational contact with the top of the mounting block. A fixed rod is fixedly connected to one side of the lower end of the first fixed plate. Multiple first connecting blocks are evenly fixedly connected to the fixed rod from top to bottom. A partition is fixedly connected to the side of the first connecting block away from the fixed rod. A sampling component is provided between two adjacent partitions.

[0009] Preferably, the sampling assembly includes a sampling box, and a second connecting block is fixedly connected to the side of the sampling box near the rotating rod. The second connecting block has an adapter groove that matches the shape of the rotating rod. Both the rotating rod and the second connecting block are equipped with electromagnets, and the electromagnets inside the two are opposite in magnetism. Circular electromagnets are fixedly installed at the middle positions of the upper and lower surfaces of the partition, and the magnetism of the circular electromagnets is opposite to that of the electromagnets inside the second connecting block.

[0010] Preferably, the sampling box has an opening on its side, the opening having a blade-like cutting structure. A mounting plate is provided between the top of the sampling box and the partition, the mounting plate being snapped into the sampling box. A second motor is fixedly installed at the lower center of the mounting plate, the output end of the second motor facing downwards and keyed to a connecting shaft. Multiple fan blades are detachably mounted on the connecting shaft. A sliding door is slidably installed at the inner edge of the sampling box, the sliding door being located between two adjacent fan blades, and the width of the sliding door being greater than the width of the opening on the side of the sampling box.

[0011] Preferably, a drill bit is fixedly installed at the lower end of the mounting block, and multiple conical blocks are slidably installed at equal intervals on the side of the mounting block, with the ends of the conical blocks connected to an electric telescopic rod installed inside the mounting block.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] 1. This application uses an arc-shaped baffle to reduce the mixing of different layers of food into the sampling box, a conical block to fix and prevent shaking and displacement, a rubber pad on the cover to increase friction and ensure stability, and an electric telescopic rod fixing device. These multiple measures ensure the stability of the sampling process, avoid interlayer interference and operational displacement, lay a solid foundation for sampling accuracy, and reduce the impact of external factors on the test results.

[0014] 2. The sampling box in this application rotates to increase the sampling volume per unit time, provides comprehensive coverage to prevent single-point deviation, and separates samples to prevent cross-contamination; the cutting blade structure makes it easy to cut food, the fan blade pushes food in, and it also divides sub-samples to facilitate multi-parameter detection, taking into account both sampling efficiency and quality, and reducing deviation and contamination risks.

[0015] 3. This application uses an electromagnet to select the number and location of sampling boxes, avoiding blind spots and ensuring representativeness; the fan blade drives the sliding door to prevent contamination; the mounting plate facilitates sample collection; sub-samples do not require secondary separation, enhancing sampling flexibility, further reducing the possibility of contamination, and improving operational convenience.

[0016] In summary, this application, through its stable and fixed, efficient and comprehensive sampling, and flexible pollution prevention design, ensures stable and accurate sampling, improves efficiency and coverage, reduces pollution risks, and takes into account ease of operation, thus comprehensively guaranteeing sampling quality and testing reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a stratified sampling device for food testing proposed in this utility model.

[0018] Figure 2 This is a partially exploded view of the cover plate of a layered sampling device for food testing proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the sampling box of a layered sampling device for food testing proposed in this utility model.

[0020] Figure 4 This is a top view of the sampling box of a layered sampling device for food testing proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the drill bit structure of a layered sampling device for food testing proposed in this utility model.

[0022] In the diagram: 1. Arc-shaped baffle, 2. Cover plate, 3. First slot, 4. First fixing plate, 5. Fixing rod, 6. First connecting block, 7. Mounting block, 8. Drill bit, 9. Second slot, 10. First motor, 11. Sampling box, 12. Partition, 13. Mounting plate, 14. Sliding door, 15. Rotating rod, 16. Second connecting block, 17. Circular electromagnet, 18. Fan blade, 19. Second motor, 20. Conical block, 21. Third slot. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1 to 5A stratified sampling device for food testing includes an arc-shaped baffle 1, a cover plate 2, a first fixing plate 4, and a mounting block 7. Two arc-shaped baffles 1 are symmetrically arranged, and a first slot 3 is fixedly connected to the top of the arc-shaped baffle 1. A through slot corresponding to the position of the arc-shaped baffle 1 is opened on the first fixing plate 4, through which the arc-shaped baffle 1 passes. A third slot 21 corresponding to the position of the arc-shaped baffle 1 is opened at the top of the mounting block 7, and the bottom end of the arc-shaped baffle 1 is engaged with the corresponding third slot 21. A second slot 9 is provided at the middle position of the top of the first fixing plate 4. The lower end of the cover plate 2 is slidably connected to the first slot 3 and the second slot 9, and rubber pads are installed at the contact parts of the first slot 3, the second slot 9 and the cover plate 2 to increase the friction between the first slot 3, the second slot 9 and the cover plate 2.

[0025] A first motor 10 is fixedly installed on one side of the top of the first fixed plate 4. The output end of the first motor 10 faces downward and is keyed to a rotating rod 15. After rotating through the first fixed plate 4, the rotating rod 15 rotates and contacts the top of the mounting block 7. A fixed rod 5 is fixedly connected to one side of the lower end of the first fixed plate 4. Multiple first connecting blocks 6 are evenly fixedly connected to the fixed rod 5 from top to bottom. A partition 12 is fixedly connected to the side of the first connecting block 6 away from the fixed rod 5. A sampling box 11 is provided between two adjacent partitions 12. A second connecting block 16 is fixedly connected to the side of the sampling box 11 near the rotating rod 15. The second connecting block 16 has an adapter groove that matches the shape of the rotating rod 15. Both the rotating rod 15 and the second connecting block 16 are equipped with electromagnets, and the magnetism of the electromagnets inside them is opposite. Through magnetic attraction, the rotating rod 15 can drive the sampling box 11 to rotate eccentrically while rotating.

[0026] A circular electromagnet 17 is fixedly installed at the middle position of both the upper and lower surfaces of the partition 12. The magnetism of the circular electromagnet 17 is opposite to that of the electromagnet inside the second connecting block 16. The sampling box 11 has an opening on its side with a distinct blade-like cutting structure, which can effectively cut the food during rotation, allowing the food to enter the sampling box 11 more smoothly.

[0027] A mounting plate 13 is provided between the top of the sampling box 11 and the partition 12. The mounting plate 13 is snapped into the sampling box 11. A second motor 19 is fixedly installed at the center of the lower end of the mounting plate 13. The output end of the second motor 19 faces downward and is keyed to a connecting shaft. Multiple fan blades 18 are detachably installed on the connecting shaft. The multiple fan blades 18 divide the internal space of the sampling box 11 into multiple areas. A sliding door 14 is slidably installed at the inner edge of the sampling box 11. The sliding door 14 is located between two adjacent fan blades 18, and the width of the sliding door 14 is greater than the width of the side opening of the sampling box 11, so that the two fan blades 18 can drive the sliding door 14 to move synchronously while rotating.

[0028] A drill bit 8 is fixedly installed at the lower end of the mounting block 7. Multiple conical blocks 20 are slidably installed at equal intervals on the side of the mounting block 7. The end of the conical block 20 is connected to an electric telescopic rod installed inside the mounting block 7, so that the electric telescopic rod can push the conical block 20 out of the mounting block 7 and insert it into the food to be sampled while working, thus fixing the entire device.

[0029] In use, the arc-shaped baffle 1 is first passed through the through slot on the first fixed plate 4 and then fixed in place by the third slot 21 on the mounting block 7. This minimizes the amount of food from different layers entering the sampling box 11 during downward movement of the entire device, thus preventing any impact on the test results. The first slot 3 is fixedly connected to the arc-shaped baffle 1, and with the arc-shaped baffle 1 fixed, the third slot 3 is also fixed to the first fixed plate 4. The cover plate 2 is then connected to the first fixed plate 4 via the first slot 3 and the second slot 9. Rubber pads are installed at the contact points between the first slot 3, the second slot 9, and the cover plate 2 to increase friction. This ensures that the cover plate 2 remains stable during the subsequent downward movement of the entire device to sample the food.

[0030] Then, grasp the handle on the cover plate 2, place the drill bit 8 against the food to be tested, and press down firmly until the specified depth is reached. At this point, activate the electric telescopic rod inside the mounting block 7 to extend the conical block 20, allowing it to insert into the food to be sampled and fix the entire device in place. This effectively prevents the device from shaking or shifting during sampling, ensuring the stability and accuracy of the sampling process. Next, remove the cover plate 2 and pull the arc-shaped baffle 1 from the first fixing plate 4 through the first slot 3, revealing the sampling box 11 inside. When sampling begins, start the first motor 10 to drive the rotating rod 15 to rotate, thereby rotating multiple sampling boxes 11 to collect samples. This allows for multiple sampling volumes to be completed per unit time, while ensuring comprehensive coverage of the food distribution and avoiding single-point sampling deviation. Furthermore, separate sampling by multiple sampling boxes 11 prevents cross-contamination. The opening of the sampling box 11 features a distinct blade-like cutting structure, which effectively cuts the food during rotation, allowing the food to enter the sampling box 11 more smoothly. During the rotation of the sampling box 11, the second motor 19 also drives the fan blades 18 to rotate. The rotating fan blades 18 first push open the sliding door 14, allowing the food to be sampled to enter the sampling box 11. Subsequently, the next fan blade 18 pushes the food from the entrance into the sampling box 11 step by step, making room for the food to enter later, so that as much food as possible can enter the sampling box 11 at once. In addition, multiple fan blades 18 divide the internal space of the sampling box 11 into multiple areas, so that the food in each area is independently divided into multiple sub-samples. The divided sub-samples can be directly used for multi-parameter detection without secondary sampling, reducing the risk of contamination. The second motor 19 is started after sampling begins, causing the fan blades 18 to rotate, which in turn pushes the sliding door 14 to rotate. After sampling ends, the fan blades 18 push the sliding door 14 back, which can prevent contamination of the inside of the sampling box 11 and the food samples, ensuring the accuracy of the test results.

[0031] The partition 12 is fixedly mounted on the fixing rod 5 via the first connecting block 6. A circular electromagnet 17 is installed above and below each partition 12, and an electromagnet is also installed inside the second connecting block 16. During each sampling, the number and position of the sampling boxes 11 can be selected according to needs, effectively avoiding dead corners or easily contaminated areas, ensuring the representativeness of the sampling points, and avoiding invalid sampling. Sampling boxes 11 that do not require sampling can be attached to the partition 12 by the circular electromagnet 17, while sampling boxes 11 that require sampling are disconnected from the circular electromagnet 17 and then attached to the rotating rod 15 by the electromagnet inside the second connecting block 16. After sampling, since the mounting plate 13 is installed on the sampling box 11 via a locking block, the sampling box 11 can be exposed by rotating the first motor 10, and then the mounting plate 13 can be opened directly to quickly and conveniently extract the food sample inside the sampling box 11.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stratified sampling device for food testing, comprising an arc-shaped baffle (1), a cover plate (2), a first fixing plate (4), and a mounting block (7), characterized in that, Two arc-shaped baffles (1) are symmetrically arranged, and a first slot (3) is fixedly connected to the top of the arc-shaped baffles (1). A through slot corresponding to the position of the arc-shaped baffles (1) is opened on the first fixing plate (4). The arc-shaped baffles (1) pass through the corresponding through slot. A third slot (21) corresponding to the position of the arc-shaped baffles (1) is opened at the top of the mounting block (7). The bottom end of the arc-shaped baffles (1) is engaged with the corresponding third slot (21). A sampling mechanism is provided on the inner side of the arc-shaped baffles (1). The sampling mechanism includes a first motor (10) fixedly installed on one side of the top of the first fixed plate (4). The output end of the first motor (10) faces downward and is keyed to a rotating rod (15). After the rotating rod (15) rotates through the first fixed plate (4), it rotates and contacts the top of the mounting block (7). A fixed rod (5) is fixedly connected to one side of the lower end of the first fixed plate (4). Multiple first connecting blocks (6) are evenly fixedly connected to the fixed rod (5) from top to bottom. A partition (12) is fixedly connected to the side of the first connecting block (6) away from the fixed rod (5). A sampling component is provided between two adjacent partitions (12). The sampling assembly includes a sampling box (11), and a second connecting block (16) is fixedly connected to the side of the sampling box (11) near the rotating rod (15). The second connecting block (16) has an adapter groove that matches the shape of the rotating rod (15). Both the rotating rod (15) and the second connecting block (16) are equipped with electromagnets, and the magnetism of the electromagnets inside the two is opposite. A circular electromagnet (17) is fixedly installed at the middle position of the upper and lower surfaces of the partition (12). The magnetism of the circular electromagnet (17) is opposite to that of the electromagnet inside the second connecting block (16). The sampling box (11) has an opening on its side, which has a blade-shaped cutting structure. A mounting plate (13) is provided between the top of the sampling box (11) and the partition (12). The mounting plate (13) is snapped into the sampling box (11). A second motor (19) is fixedly installed at the center of the lower end of the mounting plate (13). The output end of the second motor (19) faces downward and is keyed to a connecting shaft. Multiple fan blades (18) are detachably installed on the connecting shaft. A sliding door (14) is slidably installed on the inner edge of the sampling box (11). The sliding door (14) is located between two adjacent fan blades (18), and the width of the sliding door (14) is greater than the width of the opening on the side of the sampling box (11). A drill bit (8) is fixedly installed at the lower end of the mounting block (7), and multiple conical blocks (20) are slidably installed at equal intervals on the side of the mounting block (7). The end of the conical block (20) is connected to an electric telescopic rod installed inside the mounting block (7).

2. The stratified sampling device for food testing according to claim 1, characterized in that, The first fixing plate (4) has a second slot (9) at the middle position of the top. The lower end of the cover plate (2) is sealed and slidably connected with the first slot (3) and the second slot (9). Rubber pads are installed on the contact parts of the first slot (3), the second slot (9) and the cover plate (2).

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