Solvent extracting device for physical and chemical inspection of food

Abstract

The embodiment of the utility model provides a solvent extracting device for food physical and chemical inspection, and relates to the technical field of inspection equipment. The food physical and chemical inspection solvent extracting device comprises a testing base, an extracting assembly is arranged in an inner cavity of the testing base and comprises a guide rod, a threaded rod is rotationally connected to the bottom of the inner cavity of the testing base, a first motor is installed in the inner cavity of the testing base, and an output shaft of the first motor is fixedly connected with the top end of the threaded rod; according to the scheme, through arrangement of the extraction assembly, effective clamping and limiting of the stored test bottles are achieved, it is ensured that the bottles are stable and immovable in the operation process, and the requirement for human intervention is reduced. After clamping is completed, the extraction assembly can automatically conduct the mixing process of the food sample and the precipitation agent, it is ensured that the food sample and the precipitation agent fully react to form precipitates, and therefore target components are effectively separated.

Description

Technical Field

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

[0002] Food physicochemical analysis focuses on the physical and chemical properties of food, playing a crucial role in ensuring food safety, implementing quality control, and driving new product development. Food physicochemical testing primarily analyzes food components, covering aspects such as nutrients (e.g., proteins, fats, carbohydrates, vitamins, and minerals), additives, contaminants, toxins, and sensory characteristics. During testing, specific precipitating agents are typically mixed with the food sample to achieve the precipitation and separation of the target components. After the precipitation step, a solvent sampling device is used to accurately sample the treated sample. These samples are then further analyzed using appropriate testing instruments to ensure that the food meets safety standards and quality requirements.

[0003] Existing solvent extraction devices still rely heavily on manual steps in their operation, placing high demands on users' skills and experimental efficiency. First, users must manually mix the storage vial containing the food sample with the corresponding precipitating agent, ensuring thorough shaking or stirring to achieve uniform mixing and effective precipitation of the target component. This process is not only time-consuming but also prone to errors due to human factors. After mixing, users must carefully place the storage vial on a table or other stable surface and wait for the solution to stabilize before further processing.

[0004] Next, the user needs to manually use a pipette to extract an appropriate amount of supernatant or precipitate from the processed test bottle for analysis. This step also tests the operator's skill and accuracy, as improper operation may lead to sample contamination or inaccurate sample volume, thus affecting the final test results. Throughout the process, the user must pay attention to the pipette operating procedures, such as correct tip installation, appropriate aspiration speed, and avoiding air bubble formation. The operation is quite cumbersome and inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to provide a solvent extraction device for food physicochemical testing, which avoids the reliance on extensive manual operations in existing solvent extraction devices. These operations include mixing food samples with precipitating agents and using pipettes for sampling. These steps are not only time-consuming but also susceptible to human error, increasing the risk of errors and sample contamination. The entire process is cumbersome, requires a high level of user skill, and is not conducive to improving experimental efficiency and accuracy.

[0006] This utility model provides a solvent extraction device for food physicochemical testing, including a test seat. The inner cavity of the test seat is provided with an extraction component, which includes a guide rod. A threaded rod is rotatably connected to the bottom of the inner cavity of the test seat. A first motor is installed in the inner cavity of the test seat. The output shaft of the first motor is fixedly connected to the top end of the threaded rod. The outer surfaces of the threaded rod and the guide rod are movably connected to a threaded plate, and both the left and right sides of the threaded plate are slidably connected to the inner cavity of the test seat.

[0007] In one specific implementation, a connecting plate is fixedly connected to the front side of the threaded plate, and an electric guide rail is connected to the outer surface of the bottom of the connecting plate.

[0008] In one specific implementation, the output end at the bottom of the electric guide rail is connected to a pipette pump and a protective box, and the output end of the pipette pump is connected to a sampling component.

[0009] In one specific implementation, a second motor is installed inside the protective box, and a rotating rod is fixedly connected to the output shaft of the second motor.

[0010] In one specific implementation, the bottom end of the rotating rod extends to the outside of the bottom of the protective box, and several stirring blades are fixedly connected to the outer surface of the rotating rod.

[0011] In one specific implementation, a third motor is connected to the bottom of the inner cavity of the test seat, and the output shaft of the third motor is fixedly connected to a running rod.

[0012] In one specific implementation, a push plate is fixedly connected to the outer surface of the operating rod, and push rods are connected to both sides of the top of the push plate.

[0013] In one specific implementation, positioning plates are slidably connected to both the left and right sides of the inner cavity of the test seat, and fixing rods are fixedly connected to both the front and rear sides of the top of the positioning plates.

[0014] In one specific implementation, a clamping plate is fixedly connected to the top of the fixing rod, and the total number of clamping plates is two.

[0015] The beneficial effects of this application are as follows: The extraction component effectively clamps and limits the storage vials, ensuring their stability during operation and reducing the need for human intervention. After clamping, the extraction component automatically mixes the food sample with the precipitating agent, ensuring a thorough reaction and precipitate formation, thus effectively separating the target components. After the precipitation step, the extraction component further functions by directly sampling the precipitated residue without any manual operation. This not only avoids sample contamination problems that may occur in traditional methods but also significantly improves sampling accuracy and experimental efficiency, greatly enhancing the convenience and reliability of laboratory work. Furthermore, reducing manual operation steps lowers the risk of errors due to improper operation, contributing to the acquisition of more stable and reliable experimental data. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a three-dimensional side view sectional view of the test seat structure according to an embodiment of the present utility model;

[0019] Figure 3 This is a side view of the protective box structure according to an embodiment of the present utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the guide rod structure according to an embodiment of the present utility model;

[0021] Figure 5 This is a three-dimensional side view sectional view of the protective box structure according to an embodiment of the present utility model;

[0022] Figure 6 This is a three-dimensional schematic diagram of the positioning plate structure according to an embodiment of the present utility model;

[0023] Figure 7 This is a three-dimensional schematic diagram of the positioning plate and push rod structure in a disassembled state according to an embodiment of the present utility model;

[0024] Figure 8 This is a bottom-view perspective view of the push rod structure according to an embodiment of the present invention.

[0025] Icons: 1. Test stand; 2. Extraction component; 21. Guide rod; 22. Threaded rod; 23. First motor; 24. Threaded plate; 25. Connecting plate; 26. Electric guide rail; 27. Pipette pump; 28. Sampling component; 29. ​​Protective box; 210. Second motor; 211. Rotating rod; 212. Stirring blade; 213. Third motor; 214. Running rod; 215. Push plate; 216. Push rod; 217. Positioning plate; 218. Fixing rod; 219. Clamping plate. Detailed Implementation

[0026] Existing solvent extraction devices rely heavily on manual operations, including mixing food samples with precipitating agents and using pipettes for sampling. These steps are not only time-consuming but also susceptible to human error, increasing the risk of errors and sample contamination. The entire process is cumbersome, requires a high level of user skill, and hinders the improvement of experimental efficiency and accuracy. Therefore, the inventors have developed a solvent extraction device for food physicochemical testing. The extraction component can clamp, limit, and mix the storage bottle, ensuring that the food sample and precipitating agent react fully to form a precipitate. The sample is then directly extracted from the precipitate residue, eliminating the need for manual operation. This not only avoids sample contamination and improves sampling accuracy and experimental efficiency but also reduces errors caused by improper manual operation, thus solving the aforementioned shortcomings.

[0027] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] Please refer to Figures 1 to 8This utility model provides a solvent extraction device for food physicochemical testing, including a test base 1. An extraction component 2 is provided within the inner cavity of the test base 1. The extraction component 2 includes a guide rod 21, the top and bottom of which are connected to the top and bottom of the inner cavity of the test base 1. A threaded rod 22 is rotatably connected to the bottom of the inner cavity of the test base 1. The outer surface of the threaded rod 22 has external threads. A first motor 23 is installed within the inner cavity of the test base 1. The output shaft of the first motor 23 is fixedly connected to the top of the threaded rod 22. A threaded plate 24 is movably connected to the outer surfaces of the threaded rod 22 and the guide rod 21. The area of ​​the threaded plate 24 in contact with the threaded rod 22 has a matching internal thread, and the threaded plate 24 is threadedly connected to the threaded rod 22. Both sides of 4 are slidably connected to the inner cavity of the test seat 1. The front side of the threaded plate 24 is fixedly connected to the connecting plate 25. The inner side of the test seat 1 is provided with a through cavity that moves with the connecting plate 25. The outer surface of the bottom of the connecting plate 25 is connected to the electric guide rail 26. The output end of the bottom of the electric guide rail 26 is connected to the pipette pump 27 and the protective box 29 respectively. The moving part is the guide rail carried by the electric guide rail 26 itself. The output end of the pipette pump 27 is connected to the sampling component 28. The sampling component 28 can be composed of a sampling test tube or a storage test bottle and a sampling head that can sample solvent. The inner cavity of the protective box 29 is equipped with a second motor 210. The output shaft of the second motor 210 is fixedly connected to a rotating rod 211. The bottom end of the rotating rod 211 extends to the outer side of the bottom of the protective box 29.

[0029] Please refer to Figures 2 to 8 Several stirring blades 212 are fixedly connected to the outer surface of the rotating rod 211. A third motor 213 is connected to the bottom of the inner cavity of the test seat 1. A running rod 214 is fixedly connected to the output shaft of the third motor 213. A push plate 215 is fixedly connected to the outer surface of the running rod 214. Push rods 216 are connected to both sides of the top of the push plate 215. Positioning plates 217 are slidably connected to the left and right sides of the inner cavity of the test seat 1. Fixing rods 218 are fixedly connected to the front and rear sides of the top of the positioning plate 217. The test seat 1 has a movable cavity adapted to the fixing rods 218. A clamping plate 219 is fixedly connected to the top of the fixing rods 218, and there are two clamping plates 219 in total.

[0030] Specifically, when mixing the liquid and reagent in the solvent bottle, the solvent bottle to be processed must first be securely placed inside the test holder 1. Then, the third motor 213 is activated, driving the operating rod 214 to rotate, which in turn causes the push plate 215 and push rod 216 to move synchronously. As the push rod 216 moves, the positioning plate 217, the fixing rod 218, and the clamping plate 219 also move, allowing the two clamping plates 219 to adjust their positions according to the actual width of the solvent bottle, thereby achieving effective clamping and limiting of solvent bottles of different sizes.

[0031] After this step is completed, the stirring assembly can be precisely moved above the solvent bottle by activating the electric guide rail 26. At this time, the first motor 23 is activated, causing the threaded rod 22 to rotate. Using the threaded transmission principle, the threaded plate 24 and the stirring blades 212 below it are slowly lowered until they enter the appropriate depth inside the solvent bottle. Subsequently, the second motor 210 is activated, which drives the rotating rod 211 and the stirring blades 212 connected to it to rotate at high speed, ensuring that the liquid in the solvent bottle and the added reagent are fully and evenly mixed.

[0032] After the mixing process is complete, to obtain a sample for subsequent analysis, the electric guide rail 26 is used again to guide the pipette pump 27 and sampling component 28 accurately above the solvent bottle. Next, the depth of the sampling component 28 is further adjusted by controlling the threaded plate 24 to ensure it reaches the preset position in the solvent bottle. Once everything is ready, the pipette pump 27 is started, and an appropriate amount of the well-stirred solution sample is drawn through the sampling component 28 and properly stored for subsequent detailed testing and analysis using appropriate testing instruments.

[0033] In summary, the working principle of the food physicochemical testing solvent extraction device according to this utility model embodiment is as follows: First, the user places the liquid to be tested and the corresponding storage solvent bottle onto the test seat 1. Then, the corresponding precipitating reagent is poured into the storage device for precipitation. At this time, the extraction component 2 is activated to clamp and limit the storage device. Then, the extraction component 2 is used to mix and stir the liquid and reagent in the storage device. After stirring, the precipitate is sampled by the extraction component 2. After sampling, the user can store the sampled liquid again through a new storage reagent bottle and put it into the corresponding testing instrument for testing, which is convenient for use.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A food physical and chemical inspection solvent liquid taking device, characterized in that, Including test seat (1), the inner chamber of test seat (1) is provided with extraction assembly (2), and the extraction assembly (2) includes guide rod (21), the bottom of the inner chamber of test seat (1) is rotatably connected with threaded rod (22), the inner chamber of test seat (1) is installed with first motor (23), the output shaft of first motor (23) is fixedly connected with the top of threaded rod (22), the outer surface of threaded rod (22) and guide rod (21) is movably connected with threaded plate (24), and the left and right sides of threaded plate (24) are slidably connected with the inner chamber of test seat (1).

2. The food physics and chemistry inspection solvent liquid taking device according to claim 1, characterized in that, The front side of threaded plate (24) is fixedly connected with connecting plate (25), and the outer surface of the bottom of connecting plate (25) is connected with electric guide rail (26).

3. The food physics and chemistry inspection solvent liquid taking device according to claim 2, characterized in that, The output end of the bottom of electric guide rail (26) is connected with pipette pump (27) and protection box (29) respectively, and the output end of pipette pump (27) is connected with sampling part (28).

4. The food physics and chemistry inspection solvent liquid taking device according to claim 3, characterized in that, The inner chamber of protection box (29) is installed with second motor (210), and the output shaft of second motor (210) is fixedly connected with rotating rod (211).

5. The food physics and chemistry inspection solvent liquid taking device according to claim 4, characterized in that, The bottom end of rotating rod (211) penetrates to the outside of the bottom of protection box (29), and the outer surface of rotating rod (211) is fixedly connected with a plurality of stirring blades (212).

6. The food physics and chemistry inspection solvent liquid taking device according to claim 5, characterized in that, The bottom of the inner chamber of test seat (1) is connected with third motor (213), and the output shaft of third motor (213) is fixedly connected with running rod (214).

7. The food physics and chemistry inspection solvent liquid taking device according to claim 6, characterized in that, The outer surface of running rod (214) is fixedly connected with push plate (215), and the two sides of the top of push plate (215) are connected with push rod (216).

8. The food physics and chemistry inspection solvent liquid taking device according to claim 7, characterized in that, The left and right sides of the inner chamber of test seat (1) are slidably connected with positioning plate (217), and the front and rear sides of the top of positioning plate (217) are fixedly connected with fixed rod (218).

9. The food physics and chemistry inspection solvent liquid taking device according to claim 8, characterized in that, The top of fixed rod (218) is fixedly connected with clamping plate (219), and the total number of clamping plate (219) is two.

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