An auxiliary device for food detection

Abstract

The utility model relates to sample pre -treatment technical field, concretely relates to a kind of auxiliary device for food detection, including storage chamber, storage chamber one side is fixedly connected with receiving groove, sliding fit has lifting rod in receiving groove, lifting rod top end is fixedly connected with fastening platform;First chamber is equipped in fastening platform, second chamber is symmetrically equipped in first chamber two sides, and second chamber is communicated with several locating holes located at the top of fastening platform;The top of storage chamber is equipped with several connection components corresponding with the number and position of locating hole;First rotating shaft is equipped in first chamber, and first rotating shaft is fixedly connected with several threaded rods in sequence along its axial direction.The utility model can solve the problem that the connecting port of the bottom end of the solid phase extraction column is usually made of flexible material, and under the influence of its own gravity or external force, the solid phase extraction column may tilt in the vertical direction, so that the internal sample cannot be fully mixed with the liquid solution, and thus the subsequent extraction effect is poor.

Description

Technical Field

[0001] This utility model relates to the field of sample pretreatment technology, specifically to an auxiliary device for food testing. Background Technology

[0002] Food testing auxiliary devices are widely used in the detection of various food components. The commonly used food component detection method is solid phase extraction. A typical detection device usually consists of main components such as an air pump, a regular geometric chamber, various guide tubes, test tubes, and a pressurization device.

[0003] A solid-phase extraction (SPE) detection device, model number Supelco BYS2202, is available. It mainly consists of a rectangular chamber, a gas delivery tube, a fluid valve, a pressurizing device, and a solid-phase extraction column. In use, the solid-phase extraction column is first fixed to the fluid valve located at the top of the rectangular chamber. Then, the pre-treated sample is placed into the solid-phase extraction column. The pressurizing device then pressurizes the column, causing the sample to dissolve in the liquid solution within the column. The solution then flows through the fluid valve into a test tube placed inside the rectangular chamber for further processing.

[0004] In the aforementioned solid-phase extraction (SPE) apparatus, the top SPE column is connected to the flow valve only through a connector at its bottom. Since this connector is typically made of flexible material, the SPE column may tilt vertically under its own weight or external forces, preventing the internal sample from fully mixing with the liquid solution and resulting in poor extraction efficiency. Therefore, it is necessary to propose an auxiliary device for food testing that can fix the SPE column and maintain its vertical position. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a food testing auxiliary device to solve the issue that solid-phase extraction columns in existing products are prone to tilting, resulting in poor extraction performance.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: An auxiliary device for food testing includes a storage chamber, a storage groove fixedly connected to one side of the storage chamber, a lifting rod slidably fitted inside the storage groove, and a fastening platform fixedly connected to the top of the lifting rod; a first chamber is provided inside the fastening platform, and second chambers are symmetrically arranged on both sides of the first chamber, each of the second chambers being connected to a plurality of positioning holes located on the top of the fastening platform; a plurality of connecting components corresponding to the number and position of the positioning holes are provided on the top of the storage chamber; a first rotating shaft is provided inside the first chamber, and a plurality of threaded rods are sequentially fixedly connected to the first rotating shaft along its axial direction, and nut seats with opposite thread directions are symmetrically provided at both ends of the threaded rods; sliding grooves corresponding to the nut seats are provided at the connection between the first chamber and the second chambers; connecting rods are symmetrically provided on both sides of the nut seats, and arc-shaped clamping blocks are fixedly connected to the other end of each connecting rod, and the arc-shaped clamping blocks can pass through the second chambers and extend into the corresponding positioning holes.

[0007] The technical principle of the above scheme is as follows: When the first rotating shaft is rotated, several threaded rods located on the first rotating shaft will move together with the first rotating shaft along the axial direction of the first rotating shaft. At this time, the nut seats with opposite thread directions symmetrically arranged on each threaded rod will move towards each other or away from each other. Then, through the connecting rod fixed on the nut seat, the clamping block fixedly connected to its other end will slide in the second chamber and the positioning hole. At this time, the arc-shaped clamping block will clamp or release to achieve the purpose of fixing the item in the positioning hole.

[0008] The above approach has the following beneficial effects:

[0009] 1. With this solution, users do not need any other tools to assist them. They can make the arc-shaped clamping block clamp or release by simply rotating the first rotating axis, making the whole process more efficient and convenient.

[0010] 2. In this solution, the fastening table is equipped with several positioning holes, which can fix several items, thus greatly improving work efficiency.

[0011] 3. In this solution, users can place items of different diameters in the positioning hole according to different usage needs. By rotating the first rotating shaft, the arc-shaped clamping block can move in the second chamber and the positioning hole until it is completely attached and clamped to the item placed in the positioning hole, thereby achieving the purpose of keeping the item in the positioning hole in a vertical state at all times.

[0012] Furthermore, a through-hole is provided on the side of the storage room, and a gas delivery pipe is installed inside the through-hole.

[0013] Beneficial effect: When the user needs to change the air pressure in the storage room, the air in the storage room can be discharged through the gas delivery pipe.

[0014] Furthermore, a pressure gauge is installed on the gas delivery pipe.

[0015] Beneficial effect: The barometer allows users to know the air pressure in the storage room in real time.

[0016] Furthermore, each connecting component includes a drainage tube extending through the top of the storage chamber, with a flow valve at the top of the drainage tube and a dropper detachably connected to the bottom of the drainage tube.

[0017] Beneficial effects: By rotating the flow valve, users can adjust the flow rate of the liquid entering the drainage tube and dropper, thereby controlling the extraction rate.

[0018] Furthermore, the storage room is equipped with a storage platform, on which several containers, each corresponding to the number and position of the dropper, can be detachably mounted.

[0019] Beneficial effect: Because the number and position of the containers correspond to the dropper, the liquid in the dropper can accurately enter the container.

[0020] Furthermore, a knob is fixedly connected to one end of the first rotating shaft extending outside the first chamber, and the knob is provided with anti-slip texture.

[0021] Beneficial effects: The knob and the anti-slip texture on the knob make it more efficient and convenient for users to rotate the first rotating axis.

[0022] Furthermore, the contact portion between the first chamber and the first rotating shaft is provided with threads.

[0023] Beneficial effect: This design allows the position of the first rotating shaft and the first chamber to be relatively fixed when no axial movement is required.

[0024] Furthermore, the storage slot is provided with a through opening, and a second rotating shaft is provided inside the through opening. The second rotating shaft is coaxially fixedly connected to a gear that meshes with the lifting rod. Both ends of the second rotating shaft extending outside the storage slot are provided with wheels.

[0025] Beneficial effects: Users can adjust the height of the lifting rod by rotating the wheel, which in turn drives the gear on the second rotating shaft to rotate synchronously, thereby adjusting the height of the fastening platform and thus satisfying the purpose of fixing items of different heights.

[0026] Furthermore, handles are symmetrically provided on the top of the storage compartment.

[0027] Beneficial effect: This design makes it more convenient for users to move storage rooms.

[0028] Furthermore, the bottom of the storage room is equipped with several support bases.

[0029] Beneficial effects: The support base can effectively protect the bottom of the storage compartment, avoiding damage that may occur due to direct contact between the bottom of the storage compartment and other items.

[0030] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] Figure 1 This is an isometric view of an embodiment of the food testing auxiliary device of this utility model;

[0032] Figure 2 This is a front view of an embodiment of the food testing auxiliary device of this utility model;

[0033] Figure 3 This is a cross-sectional view of the fastening platform in an embodiment of the food testing auxiliary device of this utility model;

[0034] Figure 4 This is a partial cross-sectional view of the second rotating shaft in an embodiment of the food testing auxiliary device of this utility model.

[0035] The reference numerals in the accompanying drawings of the instruction manual include: 1. Storage chamber; 2. Gas delivery pipe; 3. Pressure gauge; 4. Rotary wheel; 5. Connecting assembly; 6. Lifting rod; 7. Flow valve; 8. Fastening platform; 9. Handle; 10. Drainage tube; 11. Dropper; 12. Container; 13. Storage platform; 14. First chamber; 15. Nut seat; 16. Connecting rod; 17. Positioning hole; 18. Arc-shaped clamping block; 19. Second chamber; 20. First rotating shaft; 21. Knob; 22. Threaded rod; 23. Support base; 24. Second rotating shaft; 25. Gear; 26. Storage slot. Detailed Implementation

[0036] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The following detailed description illustrates the specific implementation method:

[0040] Example 1:

[0041] An auxiliary device for food testing, combined with Figure 1 , Figure 2 and Figure 4 As shown, the device includes a storage chamber 1, with a storage slot 26 fixedly connected to one side of the storage chamber 1. A lifting rod 6 is slidably fitted inside the storage slot 26, and a fastening platform 8 is fixedly connected to the top of the lifting rod 6. The fastening platform 8 has a first chamber 14, and second chambers 19 are symmetrically arranged on both sides of the first chamber 14. Each of the second chambers 19 is connected to several positioning holes 17 located on the top of the fastening platform 8. Solid phase extraction columns of various diameters required for the experiment can be placed in the positioning holes 17. The top of the storage chamber 1 has several connecting components 5 corresponding to the number and position of the positioning holes 17. The bottom of the solid phase extraction column is detachable from the connecting components 5. The first chamber 14 is provided with a first rotating shaft 20. Several threaded rods 22 are fixedly connected to the first rotating shaft 20 along its axial direction. Both ends of the threaded rods 22 are provided with nut seats 15 with opposite thread directions. The connection between the first chamber 14 and the second chamber 19 is provided with sliding grooves corresponding to the nut seats 15. Both sides of the nut seats 15 are provided with connecting rods 16. The other end of the connecting rods 16 is fixedly connected with an arc-shaped clamping block 18. The material of the arc-shaped clamping block 18 is preferably silicone. The arc-shaped clamping blocks 18 can pass through the second chamber 19 and extend into the corresponding positioning hole 17.

[0042] The specific implementation process is as follows: When the user needs to tighten the solid-phase extraction column in the positioning hole 17, firstly, the first rotating shaft 20 is rotated to make the arc-shaped clamping block 18 fit tightly against the inner wall of the positioning hole 17, at which point the tightening range of the arc-shaped clamping block 18 reaches its maximum; then, the solid-phase extraction column is placed into the positioning hole 17 and connected to the connecting component 5 corresponding to the positioning hole 17. Then, according to the diameter of the solid-phase extraction column, the first rotating shaft 20 is rotated to make the arc-shaped clamping block 18 slide in the positioning hole 17 and gradually fit tightly until it clamps the solid-phase extraction column in the positioning hole 17. At this time, the solid-phase extraction column is fixed by the arc-shaped clamping block 18 and is in a vertical state, so that the liquid surface of the solution in the solid-phase extraction column is always kept horizontal, thereby allowing the solution to fully react with the extract, resulting in a significant improvement in the extraction effect; the arc-shaped clamping block 18 is made of silicone material, which makes its fit with the solid-phase extraction column tighter, resulting in a better tightening effect and preventing squeezing damage to the solid-phase extraction column.

[0043] Example 2:

[0044] The difference from Embodiment 1 is that the storage slot 26 has a through opening, and a second rotating shaft 24 is provided inside the through opening. The second rotating shaft 24 is coaxially fixedly connected to a gear 25 that meshes with the lifting rod 6. Both ends of the second rotating shaft 24 extend outside the storage slot 26 and are provided with wheels 4; specifically as follows Figure 1 , Figure 2 and Figure 4 As shown, when the user needs to install the solid phase extraction column onto the connecting component 5, if the height of the fastening platform 8 is not at its lowest position, it will be inconvenient for the user to install the solid phase extraction column onto the connecting component 5. At this time, it is necessary to adjust the height of the fastening platform 8 to its lowest position so that the user can complete the connection between the solid phase extraction column in the positioning hole 17 and the connecting component 5 at the top of the platform 13.

[0045] The specific implementation process is as follows: The user rotates the rotating wheel 4 to drive the gear 25 coaxially fixedly connected to the second rotating shaft 24. The gear 25 rotates and drives the lifting rod 6 that meshes with it, which can retract the lifting rod 6 to the bottom of the storage slot 26. At this time, the height of the fastening platform 8 is at its lowest position, and the user can install the solid phase extraction column on the connecting component 5 on the top of the platform 13 through the positioning hole 17; at this time, the user's efficiency in installing the solid phase extraction column will be improved.

[0046] Example 3:

[0047] As attached Figure 1 As shown, the difference from Embodiment 2 is that when the user needs to move the storage room 1, considering that the storage room 1 has a large volume and mass, a handle 9 is symmetrically provided on its top to facilitate the user to move the storage room 1.

[0048] The specific implementation process is as follows: the user holds the corresponding handle with both palms facing up, or the user, with the help of another person, holds one handle each, and the storage room can be moved from the current position to the target position.

[0049] Example 4:

[0050] The difference from Embodiment 3 is that the connecting assembly 5 includes a drainage tube 10 extending through the top of the storage chamber 1, the top of the drainage tube 10 is equipped with a flow valve 7, and the bottom of the drainage tube 10 can be detachably connected to a dropper 11; as shown in the attached... Figure 1 As shown, since different extracts react with the solution in the solid-phase extraction column at different rates, and the diameter of the outlet at the bottom of the solid-phase extraction column is a fixed value, the flow rate of the liquid entering the connecting component 5 cannot be changed. If the extract fails to react fully with the solution and flows into the connecting component 5 through the outlet, the extraction effect may be unsatisfactory. In order to achieve the best extraction effect, the flow rate of the liquid entering the connecting component 5 should be manually adjustable.

[0051] The specific implementation process is as follows: When the user performs the extraction operation, first close the flow valve 7, then install the solid phase extraction column on the flow valve 7. According to the reaction rate between the extract and the solution, the flow rate of the liquid entering the drainage tube 10 and the dropper 11 is adjusted by the flow valve 7 to make the extraction operation more effective.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An auxiliary device for food testing, comprising a storage chamber (1), characterized in that: A storage compartment (1) is fixedly connected to a storage slot (26) on one side. A lifting rod (6) is slidably fitted inside the storage slot (26). A fastening platform (8) is fixedly connected to the top of the lifting rod (6). A first chamber (14) is provided inside the fastening platform (8). A second chamber (19) is symmetrically provided on both sides of the first chamber (14). Each of the second chambers (19) is connected to several positioning holes (17) located on the top of the fastening platform (8). Several connecting components (5) corresponding to the number and position of the positioning holes (17) are provided on the top of the storage compartment (1). A first rotating shaft (20) is provided inside the first chamber (14). The first rotating shaft (20) is axially connected to the first rotating shaft (20). Several threaded rods (22) are fixedly connected in sequence. Both ends of the threaded rods (22) are symmetrically provided with nut seats (15) with opposite thread directions. The connection between the first chamber (14) and the second chamber (19) is provided with sliding grooves corresponding to the nut seats (15). Several connecting rods (16) are symmetrically provided on both sides of the nut seats (15). The other end of the connecting rods (16) is fixedly connected with an arc-shaped clamping block (18). The connecting rods (16) and the arc-shaped clamping blocks (18) are slidably fitted in the second chamber (19), and the arc-shaped clamping blocks (18) can pass through the second chamber (19) and extend into the corresponding positioning hole (17).

2. The auxiliary device for food testing according to claim 1, characterized in that, The storage room (1) has a through-hole on its side, and a gas delivery pipe (2) is installed inside the through-hole.

3. The auxiliary device for food testing according to claim 2, characterized in that, A pressure gauge (3) is installed on the gas delivery pipe (2).

4. The auxiliary device for food testing according to claim 3, characterized in that, Each of the connecting components (5) includes a drainage tube (10) that runs through the top of the storage room (1). Each drainage tube (10) is equipped with a flow valve (7) at the top and a dropper (11) can be detachably connected to the bottom of the drainage tube (10).

5. The auxiliary device for food testing according to claim 4, characterized in that, The storage room (1) is equipped with a storage platform (13), and several containers (12) are detachably mounted on the storage platform (13), the number and position of which correspond to the dropper (11).

6. The auxiliary device for food testing according to claim 5, characterized in that, A knob (21) is fixedly connected to one end of the first rotating shaft (20) extending outside the first chamber (14), and the knob (21) is provided with anti-slip texture.

7. The auxiliary device for food testing according to claim 6, characterized in that, The first chamber (14) and the first rotating shaft (20) are both provided with threads.

8. The auxiliary device for food testing according to claim 7, characterized in that, The storage slot (26) is provided with a through opening, and a second rotating shaft (24) is provided inside the through opening. The second rotating shaft (24) is coaxially fixedly connected with a gear (25) that meshes with the lifting rod (6). Both ends of the second rotating shaft (24) extending outside the storage slot (26) are provided with rotating wheels (4).

9. The auxiliary device for food testing according to claim 8, characterized in that, The storage room (1) has symmetrical handles (9) on the top.

10. The auxiliary device for food detection according to claim 9, characterized in that, The bottom of the storage room (1) is provided with several support bases (23).

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