A sample sampling device for determining the additive content in non-fermented soy products

Abstract

The utility model discloses a kind of sample sampling devices for determining additive content in non-fermentation bean products, to provide the sample sampling device for determining additive content in non-fermentation bean products with improved applicability and practicality. It includes base, base is equipped with centrifugal tube slot, volumetric flask slot and receiving tube slot;Support, support is connected with base;Auxiliary assembly, support is connected with support rod, support rod is rotatably connected with limit ring, auxiliary assembly includes push block and limit block, push block is movably connected with base;Liquid feeding conduit clamp, liquid feeding conduit clamp is connected with support lifting;Limit seat, limit seat is connected with support lifting, limit seat is equipped with filter membrane limit groove. The utility model has the beneficial effects that: through device, sample sampling efficiency for determining additive content in non-fermentation bean products is improved;Device has functional concentration to improve practicality;Sampling operation is stable and high in accuracy;Realize saving energy and facilitate continuous experiment;Protect experimental apparatus, improve operation smoothness.

Description

Technical Field

[0001] This utility model relates to the field of soybean product testing technology, and in particular to a sample sampling device for determining the additive content in non-fermented soybean products. Background Technology

[0002] In the production of non-fermented soy products, manufacturers add a certain amount of food additives to enhance the product's color, aroma, flavor, and shelf life. Preservatives and sweeteners are widely used in the food industry and are often added in combination. Therefore, to investigate whether commercially available non-fermented soy products contain excessive amounts of food additives, it is necessary to test commercially available non-fermented soy products such as dried tofu using high-performance liquid chromatography (HPLC) to determine acesulfame potassium, benzoic acid, sorbic acid, and sodium saccharin. Batch sampling of soy product samples is required for this testing.

[0003] Chinese Patent Publication No.: CN 221377242 U, Publication Date: July 19, 2024. This utility model proposes a quantitative mixing and sampling device for testing the safety of soybean products, including a support frame, a mixing cylinder, a sampling mechanism, and a sample receiving cylinder. The mixing cylinder and the sample receiving cylinder are mounted on the support frame, and the sampling mechanism is evenly installed on the side wall of the mixing cylinder. The sampling mechanism includes a sampling cylinder and a piston rod, with the piston rod installed in the sampling cylinder. The sampling cylinder is vertically installed on the side wall of the mixing cylinder and is made of transparent material. Its side wall is provided with capacity graduation lines. The lower end of the side wall of the sampling cylinder is connected to the mixing cylinder through a sampling tube, and the bottom of the sampling cylinder is connected to the sample receiving cylinder through a sample outlet tube. Valves for adjusting the on / off state are provided on the sampling tube and the sample outlet tube. The drawback of this technical solution is that during sampling, the centrifuge tube containing the raw material sample needs to be frequently transferred to various devices (such as a vortex oscillator, ultrasonic instrument, and centrifuge) for sampling operations. The repeated transfers and connection with the sample outlet tube are not practical, thus reducing its practicality.

[0004] In summary, existing sampling devices suffer from poor applicability and low practicality. Utility Model Content

[0005] This invention aims to overcome the shortcomings of existing sampling devices, such as poor applicability and low practicality, and provides a sample sampling device for determining the additive content in non-fermented soybean products, which improves applicability and practicality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A sample sampling device for determining the additive content in non-fermented soy products, comprising: The base is equipped with centrifuge tube slots, volumetric flask slots, and receiving tube slots. The bracket connects to the base; The auxiliary component includes a support rod connected to the bracket, a limit ring rotatably connected to the support rod, and a push block and a limit block. The push block and the limit block are respectively placed on both sides of the centrifuge tube tank. The push block is movably connected to the base, and the limit block is arranged opposite to the push block. The liquid addition tubing clamp is connected to the support for lifting and lowering, and the liquid addition tubing clamp is placed above the volumetric flask tray; The limiting seat is connected to the support frame for lifting and lowering. The limiting seat is equipped with a filter membrane limiting groove and is positioned above the receiving tube groove.

[0007] The base features centrifuge tube slots for positioning centrifuge tubes, volumetric flask slots for positioning volumetric flasks, and receiving tube slots for positioning receiving tubes. This allows for stable and centralized placement of centrifuge tubes, volumetric flasks, and receiving tubes during sampling, improving operational efficiency and facilitating continuous experiments. Centrifuge tubes are inserted into limiting rings to cooperate with the base and slots below. A pusher block is positioned on one side of the slot, and a limiting block on the other. Moving the pusher block on the base tilts the centrifuge tubes to a specific angle, maintaining a suitable tilt for easy aspiration and transfer of the supernatant, thus improving efficiency. The device improves sampling stability, operational accuracy, and efficiency. The liquid addition clamp, connected to the support, facilitates pre-preparation and fixation of the liquid addition tubing. Moving the clamp into the volumetric flask allows for rapid and stable flow of the supernatant during water-based volumetric flask repositioning, enhancing operational accuracy and efficiency. Its movable design allows for easy control of the distance between the clamp and the flask, making operation more convenient. A limiting seat is used to place the filter membrane, facilitating pre-placement and positioning of the dispensing solution, and ensuring precise reception by the receiving tube below. The limiting seat also saves effort as filtration requires a slow process. The device achieves the following effects: improved sample collection efficiency for determining additive content in non-fermented soybean products; enhanced practicality due to its concentrated functions; stable and accurate sampling operation; and effort-saving and convenient continuous experimentation.

[0008] Preferably, the support frame has a positioning groove, one end of the support rod is inserted into the positioning groove, and one side of the limiting ring has a mating groove, the other end of the support rod is inserted into the mating groove. The support rod is vertically inserted into the positioning groove of the support frame and the other end is inserted into the mating groove to support the limiting ring and ensure the rotation of the limiting ring. This achieves the effect of ensuring the connection and operational stability of the limiting ring and facilitating continuous experiments.

[0009] Preferably, the base has a fixing groove into which a support rod is inserted, and the support rod is connected to a fixing rod. The other side of the limiting ring has a second docking groove, where one end of the fixing rod is inserted into the support rod, and the fixing rod is also inserted into the second docking groove. The fixing rod is vertically inserted into the support rod, and the other end is inserted into the second docking groove to support the limiting ring and ensure its rotation. This achieves the effect of ensuring the connection and operational stability of the limiting ring, facilitating continuous experimentation.

[0010] Preferably, the bottom surface of the centrifuge tube trough is curved, and the opening of the trough connects to the base surface in a curved manner. This smooth connection between the curved bottom and the base allows the centrifuge tubes to be placed stably when not under external force, and to smoothly tilt when pushed by external force. This improves operational fluency.

[0011] Preferably, the base is connected to a limiting guide rod, and the push block has a limiting slot. The limiting guide rod is inserted into the limiting slot, and both the push block and the limiting block are connected to buffer pads. The base, through the limiting guide rod and the limiting slot of the push block, allows the push block to move along the limiting guide rod's limit, preventing displacement and loss. Buffer pads are attached to the opposite surfaces of the push block and the limiting block to prevent scratching or even breaking the centrifuge tubes. This achieves the effect of improving the operational stability of the centrifuge tubes and protecting them.

[0012] Preferably, the support has a sliding block 1 elastically connected to it. The sliding block 1 is threadedly connected to a fixing bracket, which is connected to a liquid addition tube clamp. The liquid addition tube clamp has a clamping groove, and an anti-slip sleeve is connected inside the groove. The sliding block 1 is elastically connected to the support for automatic reset. The fixing bracket is screwed onto the sliding block 1, and the fixing bracket connects to the liquid addition tube clamp, allowing the clamping groove inside the liquid addition tube clamp to fix the liquid addition tube. The protective sleeve increases the friction force for clamping the heating tube and protects the liquid addition tube from breakage. This achieves the effect of improving the liquid addition efficiency of the volumetric flask and protecting the liquid addition tube.

[0013] Preferably, the support is connected to a guide seat, which has a guide hole. A guide rod is inserted into the guide hole, and the guide rod is connected to a slider. An elastic mechanism is sleeved on the guide rod, with one end connected to the guide seat and the other end connected to the slider. The support connects to the guide rod through the guide hole, allowing the slider to move up and down along the guide rod. The elastic mechanism ensures the slider automatically returns to its original position. This improves the stability of the heating tube and the accuracy of liquid addition to the volumetric flask.

[0014] Preferably, the bracket is connected to a second guide seat, which has a second guide hole. A second guide rod is inserted into the second guide hole, and the second guide rod is connected to a limiting seat. An elastic mechanism is sleeved on the second guide rod, with one end connected to the second guide seat and the other end connected to a second slider. The second guide rod is connected to the second slider, and the limiting seat is connected to an extension rod, which is connected to the second slider. The bracket inserts the second guide rod through the second guide hole of the second guide seat, and the limiting seat can then connect to the second slider via the extension rod. This allows the limiting seat, in conjunction with the elastic mechanism, to automatically reset and stably move up and down when the second guide rod moves up and down. This improves the stability of the limiting seat's movement and the filtration accuracy of the receiving tube.

[0015] The beneficial effects of this invention are: it improves the sample collection efficiency for determining the additive content in non-fermented soybean products; the device has a concentrated function, which improves its practicality; the sampling operation is stable and highly accurate; it saves effort and facilitates continuous experiments; it protects experimental equipment and improves the smoothness of operation. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a cross-sectional view of the centrifuge tube trough; Figure 3 This is a cross-sectional view of the connection between the limiting ring and the support rod and the strut; Figure 4 This is a sectional view of the limit seat.

[0017] In the diagram: 1. Base, 2. Centrifuge tube groove, 3. Volumetric flask groove, 4. Receiving tube groove, 5. Support, 6. Support rod, 7. Limiting ring, 8. Push block, 9. Limiting block, 10. Liquid addition tube clamp, 11. Limiting seat, 12. Positioning groove, 13. Docking groove one, 14. Fixing groove, 15. Support rod, 16. Fixing rod, 17. Docking groove two, 18. Limiting guide rod, 19. Limiting slot, 20. Buffer pad, 21. Slider one, 22. Fixing frame, 23. Clamping groove, 24. Anti-slip sleeve, 25. Guide seat one, 26. Guide hole one, 27. Guide rod one, 28. Elastic mechanism one, 29. Guide seat two, 30. Guide hole two, 31. Guide rod two, 32. Elastic mechanism two, 33. Slider two, 34. Extension rod, 35. Filter membrane limiting groove. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “below” other elements or features would be positioned “up” other elements or features. Thus, the exemplary term “down” can include both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0021] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0022] Example 1: like Figure 1 , 4 As shown, a sample collection device for determining the additive content in non-fermented soybean products includes a base 1, which has a centrifuge tube groove 2, a volumetric flask groove 3, and a receiving tube groove 4; a support 5 connected to the base 1; an auxiliary component, which has a support rod 6 connected to the support 5, and a limiting ring 7 rotatably connected to the support rod 6. The auxiliary component includes a push block 8 and a limiting block 9, which are respectively placed on both sides of the centrifuge tube groove 2. The push block 8 is movably connected to the base 1, and the limiting block 9 is arranged opposite to the push block 8; a liquid addition tube clamp 10, which is vertically connected to the support 5 and is placed above the volumetric flask groove 3; and a limiting seat 11, which is vertically connected to the support 5 and has a filter membrane limiting groove 35. The limiting seat 11 is placed above the receiving tube groove 4.

[0023] like Figure 1 ,3 As shown, the bracket 5 is provided with a positioning groove 12, one end of the support rod 6 is inserted into the positioning groove 12, and one side of the limiting ring 7 is provided with a docking groove 13, the other end of the support rod 6 is inserted into the docking groove 13.

[0024] like Figure 1 , 3 As shown, the base 1 is provided with a fixing groove 14, a support rod 15 is inserted into the fixing groove 14, a fixing rod 16 is inserted into the support rod 15, and a second docking groove 17 is provided on the other side of the limiting ring 7. One end of the fixing rod 16 is inserted into the support rod 15, and the fixing rod 16 is inserted into the second docking groove 17.

[0025] like Figure 1 , 2 As shown, the bottom surface of the centrifuge tube trough 2 is an arc-shaped surface, and the opening of the centrifuge tube trough 2 is connected to the surface of the base 1 in an arc shape.

[0026] like Figure 1 As shown, the base 1 is connected to a limiting guide rod 18, and the push block 8 is provided with a limiting slot 19. The limiting guide rod 18 is inserted into the limiting slot 19. Both the push block 8 and the limiting block 9 are connected with buffer pads 20. The bracket 5 is elastically connected to a slider 21, and the slider 21 is threadedly connected to a fixing frame 22. The fixing frame 22 is connected to the liquid filling tube clamp 10. The liquid filling tube clamp 10 is provided with a clamping groove 23, and an anti-slip sleeve 24 is connected inside the clamping groove 23.

[0027] like Figure 1 As shown, the bracket 5 is connected to a guide seat 25, the guide seat 25 is provided with a guide hole 26, a guide rod 27 is inserted into the guide hole 26, the guide rod 27 is connected to the slider 21, and an elastic mechanism 28 is sleeved on the guide rod 27. One end of the elastic mechanism 28 is connected to the guide seat 25, and the other end of the elastic mechanism 28 is connected to the slider 21.

[0028] like Figure 1 As shown, the bracket 5 is connected to a guide seat 29, the guide seat 29 is provided with a guide hole 30, a guide rod 31 is inserted into the guide hole 30, the guide rod 31 is connected to the limiting seat 11, the guide rod 31 is sleeved with an elastic mechanism 32, one end of the elastic mechanism 32 is connected to the guide seat 29, and the other end of the elastic mechanism 32 is connected to a slider 33, the guide rod 31 is connected to the slider 33, the limiting seat 11 is connected to an extension rod 34, and the extension rod 34 is connected to the slider 33.

[0029] like Figure 1-4 As shown: Both the cushioning pad 20 and the anti-slip sleeve 24 are made of rubber material.

[0030] After weighing the bean product sample, it is placed in a centrifuge tube for easy mixing in a vortex mixer. After mixing, it is taken out and placed in an ultrasonic mixer for secondary mixing. Finally, it is centrifuged to obtain the required supernatant. The supernatant is then transferred using a volumetric flask and a liquid addition tube (a standard glass drain tube in a chemical laboratory) to add water to make up to the volume. The supernatant is then filtered through the filter membrane of a needle filter. Finally, the sample solution remains in the receiving tube to complete the sampling. In the sample sampling device, the diameter of centrifuge tube groove 2 is adapted to the centrifuge tube used, the diameter of volumetric flask groove 3 is adapted to the volumetric flask used, the diameter of receiving tube groove 4 is adapted to the receiving tube in the needle filter used, and the inner diameter of clamp groove 23 and anti-slip sleeve 24 is adapted to the diameter of the liquid addition tube, so that the liquid addition tube can be fixed in the clamp groove 23 under friction.

[0031] In use: Weigh 2g of non-fermented soybean product and place it into a centrifuge tube in centrifuge tube slot 2 (50ml specification). Add 25ml of water and place the centrifuge tube into a vortex mixer for mixing. After mixing, remove the tube and place it in an ultrasonic mixer for secondary mixing. Finally, centrifuge to obtain the desired supernatant. Supernatant transfer: Push the push block 8 to tilt the centrifuge tube to 45°, at which point the lower end of the centrifuge tube abuts against the limiting block 9. Transfer the supernatant from the tilted centrifuge tube to the volumetric flask in volumetric flask slot 3 using a pipette (or pipette): Press the slider 21 to lower the liquid addition tube and insert it into the volumetric flask. Add liquid along the liquid addition tube to the volumetric flask to bring the volume to 50ml. Release the fixing bracket 22, and the liquid addition tube will automatically reset. Fix the syringe in the needle filter to the needle filter. The needle filter is a 0.22μm microporous filter membrane. Hold the syringe and press the needle filter into the filter membrane limiting groove 35. Apply force to press down the limiting seat 11. After the needle enters the receiving tube in the receiving tube groove 4, the liquid is filtered out. The sample solution is left in the receiving tube to complete the sampling.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sample sampling device for determining the additive content in non-fermented soy products, characterized in that, include The base (1) is provided with a centrifuge tube groove (2), a volumetric flask groove (3) and a receiving tube groove (4); The bracket (5) is connected to the base (1); The auxiliary component includes a support rod (6) connected to the bracket (5), the support rod (6) being rotatably connected to a limiting ring (7), the auxiliary component including a push block (8) and a limiting block (9), the push block (8) and the limiting block (9) being placed on both sides of the centrifuge tube (2), the push block (8) being movably connected to the base (1), and the limiting block (9) being arranged opposite to the push block (8); Liquid addition tube clamp (10), the liquid addition tube clamp (10) is connected to the support (5) in a lifting manner, and the liquid addition tube clamp (10) is placed above the volumetric flask tank (3); Limiting seat (11), the limiting seat (11) is connected to the support (5) in a lifting manner, the limiting seat (11) is provided with filter membrane limiting groove (35), and the limiting seat (11) is placed above the receiving tube groove (4).

2. The sample sampling device for determining the additive content in non-fermented soy products according to claim 1, characterized in that, The bracket (5) is provided with a positioning groove (12), one end of the support rod (6) is inserted into the positioning groove (12), one side of the limiting ring (7) is provided with a docking groove (13), and the other end of the support rod (6) is inserted into the docking groove (13).

3. The sample sampling device for determining the additive content in non-fermented soy products according to claim 2, characterized in that, The base (1) is provided with a fixing groove (14), a support rod (15) is inserted into the fixing groove (14), a fixing rod (16) is inserted into the support rod (15), and a second docking groove (17) is provided on the other side of the limiting ring (7). One end of the fixing rod (16) is inserted into the support rod (15), and the fixing rod (16) is inserted into the second docking groove (17).

4. The sample sampling device for determining the additive content in non-fermented soy products according to claim 1, characterized in that, The bottom surface of the centrifuge tube (2) is an arc-shaped surface, and the opening of the centrifuge tube (2) is connected to the surface of the base (1) in an arc shape.

5. A sample sampling device for determining the additive content in non-fermented soy products according to claim 1, characterized in that, The base (1) is connected to a limiting guide rod (18), the push block (8) is provided with a limiting slot (19), the limiting guide rod (18) is inserted into the limiting slot (19), and both the push block (8) and the limiting block (9) are connected to a buffer pad (20).

6. The sample sampling device for determining the additive content in non-fermented soybean products according to claim 1, characterized in that, The bracket (5) is elastically connected to a slider (21), the slider (21) is threadedly connected to a fixing frame (22), the fixing frame (22) is connected to a liquid filling tube clamp (10), the liquid filling tube clamp (10) is provided with a clamping groove (23), and an anti-slip sleeve (24) is connected inside the clamping groove (23).

7. A sample sampling device for determining the additive content in non-fermented soy products according to claim 6, characterized in that, The bracket (5) is connected to a guide seat (25), the guide seat (25) is provided with a guide hole (26), a guide rod (27) is inserted into the guide hole (26), the guide rod (27) is connected to a slider (21), the guide rod (27) is sleeved with an elastic mechanism (28), one end of the elastic mechanism (28) is connected to the guide seat (25), and the other end of the elastic mechanism (28) is connected to the slider (21).

8. A sample sampling device for determining the additive content in non-fermented soy products according to claim 1, characterized in that, The bracket (5) is connected to a guide seat (29), the guide seat (29) is provided with a guide hole (30), the guide hole (30) is inserted with a guide rod (31), the guide rod (31) is connected to a limiting seat (11), the guide rod (31) is sleeved with an elastic mechanism (32), one end of the elastic mechanism (32) is connected to the guide seat (29), the other end of the elastic mechanism (32) is connected to a slider (33), the guide rod (31) is connected to the slider (33), the limiting seat (11) is connected with an extension rod (34), the extension rod (34) is connected to the slider (33).

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