A rapid heavy metal detection device for traditional Chinese medicinal materials

Abstract

The utility model relates to heavy metal detection technical field, concretely is a kind of traditional chinese medicinal material heavy metal rapid detection device, it includes: agitator, agitator includes base, base front side is equipped with stirring assembly, and stirring assembly top is equipped with reaction pool, and stirring assembly is used to drive reaction pool rotation, and base rear side is equipped with electrode fixing piece by telescopic link, and electrode fixing piece clamps electrode sheet.The utility model, by setting first handle and second handle, electrode fixing piece movement can be conveniently controlled, electrode fixing piece is lifted using first handle, electrode fixing piece rotation can be avoided, by setting reset structure, by separating clamping block and rotating block, electrode sheet insertion can be conveniently, reset structure is used to drive clamping block to move to rotating block, electrode sheet can be clamped, improve electrode sheet installation speed, while avoiding electrode sheet damage.

Description

Technical Field

[0001] This utility model relates to the field of heavy metal detection technology, specifically a rapid detection device for heavy metals in traditional Chinese medicine materials. Background Technology

[0002] In recent years, with the widespread application of traditional Chinese medicine (TCM) in the healthcare field, its quality and safety have received increasing attention. Heavy metal contamination (such as lead, cadmium, mercury, and arsenic) is a significant factor affecting the safety of TCM; long-term intake of excessive heavy metals can lead to organ damage and even cancer. Therefore, heavy metal testing is necessary during the production and processing of TCM. Currently, commonly used detection methods include electrochemical analysis and atomic absorption spectrometry. Among these, electrochemical methods have simpler sample pretreatment and shorter processing time, making them suitable for rapid screening of large numbers of samples.

[0003] Existing electrochemical detectors for heavy metals generally include a data processing unit and a detection unit. The detection unit typically includes a stirring platform with a retractable electrode clamp at the rear. During detection, the detection electrode is first inserted into the clamp, then a disposable reaction chamber is placed on the stirring platform, and reagents are injected into the reaction chamber. The electrode is then inserted into the reagent for activation. After activation, a certain amount of sample is injected. The entire detection process, including sample pretreatment time, generally does not exceed 15 minutes.

[0004] However, in actual use, the following problems exist:

[0005] 1. The electrode chuck is inconvenient to lift and lower. After the test is completed, when lifting the electrode chuck, the electrode plate may rotate before it is completely removed from the reaction cell. This rotation can cause the electrode plate to carry away some sample and contaminate the stirring table.

[0006] 2. The electrode plate is connected to the clamp by insertion. The electrode plate is prone to bending during insertion. At the same time, it is necessary to align it with the insertion hole of the clamp and avoid contact with the head of the electrode plate. This is inconvenient to use. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides a rapid detection device for heavy metals in Chinese medicinal materials.

[0008] The technical solution of this utility model is:

[0009] A rapid detection device for heavy metals in traditional Chinese medicinal materials, comprising:

[0010] A stirring table, comprising a base, a stirring assembly on the front side of the base, a reaction tank on the top of the stirring assembly, the stirring assembly being used to drive the reaction tank to rotate, and an electrode fixing component installed on the rear side of the base via a telescopic rod, the electrode fixing component holding an electrode plate.

[0011] Preferably, a fixed sleeve is provided on the rear side of the top surface of the base, the telescopic rod is slidably installed in the fixed sleeve, and a limiting block is provided on the front side of the top surface of the fixed sleeve, the limiting block being used to limit the minimum height of the electrode fixing component.

[0012] Preferably, the reaction tank is located directly in front of the fixed sleeve and parallel to the axis of the fixed sleeve.

[0013] Preferably, the electrode fixing component includes a rotating block, the bottom end of which is rotatably connected to the top end of the telescopic rod, and the rotating block can rotate downwards to be perpendicular to the telescopic rod at most, with the reaction cell located directly below the front end of the rotating block.

[0014] Preferably, a clamping block is fixedly connected to the front side of the rotating block via a reset structure, and the reset structure is used to drive the clamping block to move in the direction of the rotating block.

[0015] Preferably, the front end of the rotating block is provided with a positioning groove extending downwards, the positioning groove is used to limit the position of the electrode sheet, and the tail end of the clamping block is provided with a power-connecting spring at the corresponding position of the positioning groove, the power-connecting spring is used to connect the electrode sheet to electricity.

[0016] Preferably, the lower part of the tail end of the rotating block is provided with a first handle, and the upper part of the front end of the clamping block is provided with a second handle.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention, by providing a first handle and a second handle, facilitates the control of the movement of the electrode fixing component. The first handle lifts the electrode fixing component, preventing it from rotating. By providing a reset structure, the clamping block and the rotating block are separated, facilitating the insertion of the electrode sheet. The reset structure drives the clamping block to move towards the rotating block, clamping the electrode sheet, increasing the electrode sheet installation speed, and preventing damage to the electrode sheet. Attached Figure Description

[0019] Figure 1 This is a first schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a second schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;

[0022] Figure 4 This is a first exploded view of the electrode fixing structure in this utility model;

[0023] Figure 5 This is a second exploded view of the electrode fixing structure in this utility model.

[0024] The meanings of the labels in the diagram are as follows:

[0025] 1. Mixing platform; 11. Base; 12. Power source; 13. Rotating sleeve; 14. Protective sleeve; 15. Fixed sleeve; 16. Telescopic rod; 17. Limiting block;

[0026] 2. Electrode fixing component; 21. Rotating block; 22. First handle; 23. Positioning groove; 24. Guide rod; 25. Clamping block; 26. Electrical contact spring; 27. Elastic element; 28. Second handle;

[0027] 3. Electrode plates; 4. Reaction cell. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1:

[0030] Please see Figure 1-5 The present invention will describe the above technical solution in detail through the following embodiments:

[0031] A rapid detection device for heavy metals in traditional Chinese medicinal materials, comprising:

[0032] The stirring table 1 includes a base 11, a stirring assembly is provided on the front side of the base 11, a reaction tank 4 is provided on the top of the stirring assembly, the stirring assembly is used to drive the reaction tank 4 to rotate, and an electrode fixing component 2 is installed on the rear side of the base 11 via a telescopic rod 16, the electrode fixing component 2 clamps the electrode sheet 3.

[0033] The stirring assembly includes a power source 12, which is fixedly installed inside the base 11. The power source 12 is an electric motor. The output shaft of the power source 12 is connected to a rotating sleeve 13 through a known reduction gearbox. The reaction tank 4 is inserted into the rotating sleeve 13 from above.

[0034] The reduction gearbox is used to transmit power from the power source 12 to the rotating sleeve 13, reducing the rotational speed while increasing the torque. When the power source 12 is working, it can drive the rotating sleeve 13 to rotate, thereby driving the reaction tank 4 to rotate.

[0035] A protective sleeve 14 is wrapped around the front of the top of the base 11 and outside the rotating sleeve 13. The top surface of the protective sleeve 14 has a through hole, and the reaction tank 4 is inserted through the through hole.

[0036] The protective sleeve 14 is welded to the base 11 to protect the reaction tank 4 and the rotating sleeve 13, and to prevent the reaction tank 4 from detaching from the rotating sleeve 13 due to centrifugal force when rotating.

[0037] Reaction chamber 4 is made of transparent plastic and is used to hold samples and reagents.

[0038] A fixed sleeve 15 is welded to the rear side of the top surface of the base 11. The telescopic rod 16 is slidably installed inside the fixed sleeve 15. A limiting block 17 is provided on the front side of the top surface of the fixed sleeve 15. The limiting block 17 is used to limit the minimum height of the electrode fixing component 2.

[0039] The telescopic rod 16 is a hollow metal tube. The telescopic rod 16 and the fixed sleeve 15 are interference-fitted. When the telescopic rod 16 slides along the axial direction of the fixed sleeve 15, it can stop at any height.

[0040] The height of the electrode fixture 2 can be changed by sliding the telescopic rod 16.

[0041] When the telescopic rod 16 is lowered to its lowest position, the limiting block 17 will press against the electrode fixing member 2, thereby limiting the minimum height of the electrode fixing member 2.

[0042] The reaction tank 4 is located directly in front of the fixed sleeve 15 and is parallel to the axis of the fixed sleeve 15.

[0043] When the electrode holder 2 is at its lowest point, the electrode plate 3 can just be inserted into the reaction cell 4.

[0044] The electrode fixing component 2 includes a rotating block 21. The bottom end of the rotating block 21 is rotatably connected to the top end of the telescopic rod 16. The rotating block 21 can rotate downwards to be perpendicular to the telescopic rod 16. The reaction cell 4 is located directly below the front end of the rotating block 21.

[0045] When the telescopic rod 16 is lowered to its lowest position and the rotating block 21 rotates perpendicular to the axis of the telescopic rod 16, the top surface of the limiting block 17 abuts against the bottom surface of the rotating block 21.

[0046] A clamping block 25 is fixedly connected to the front side of the rotating block 21 via a reset structure. The reset structure is used to drive the clamping block 25 to move toward the rotating block 21.

[0047] The reset structure includes a guide rod 24, which is slidably installed inside the rotating block 21 and parallel to the axis of the rotating block 21. The tail end of the guide rod 24 passes through the rotating block 21 and is threadedly connected to the clamping block 25. An elastic element 27 is sleeved outside the guide rod 24 and inside the rotating block 21. The two ends of the elastic element 27 abut against the rotating block 21 and the head of the guide rod 24, respectively.

[0048] The elastic element 27 is a helical spring. The compressibility of the elastic element 27 allows the clamping block 25 to move relative to the rotating block 21, and the guide rod 24 is used to limit the direction of movement of the clamping block 25.

[0049] The elastic force of the elastic element 27 can drive the clamping block 25 to move towards the rotating block 21 until the end faces of the clamping block 25 and the rotating block 21 abut against each other.

[0050] The front end of the rotating block 21 is provided with a positioning groove 23 extending downwards. The positioning groove 23 is used to limit the position of the electrode sheet 3. The tail end of the clamping block 25 is engaged with a power-connecting spring 26 at the corresponding position of the positioning groove 23. The power-connecting spring 26 is used to connect the electrode sheet 3 to electricity.

[0051] The width and thickness of the positioning groove 23 are adapted to the electrode sheet 3.

[0052] The number of contact springs 26 is the same as the number of electrodes on electrode plates 3. Each contact spring 26 corresponds to one motor. The contact area between the contact spring 26 and the electrode plate 3 protrudes outward.

[0053] A first handle 22 is fixedly installed at the lower end of the rotating block 21 by screws, and a second handle 28 is fixedly installed at the upper front end of the clamping block 25 by screws.

[0054] Applying an upward force to the first handle 22 can drive the rotating block 21 and the clamping block 25 to rotate downwards, while simultaneously driving the electrode fixing member 2 and the telescopic rod 16 to move upwards.

[0055] Applying an upward force to the second handle 28 drives the rotating block 21 and the clamping block 25 to rotate upward, and simultaneously drives the electrode fixing member 2 and the telescopic rod 16 to move upward. When the telescopic rod 16 reaches its maximum length, continuing to apply an upward force to the second handle 28 drives the clamping block 25 away from the rotating block 21.

[0056] Applying a downward force to the second handle 28 can drive the rotating block 21 and the clamping block 25 to rotate downwards. After the rotating block 21 and the clamping block 25 rotate to the horizontal, the electrode fixing member 2 and the telescopic rod 16 can be driven to move downwards simultaneously.

[0057] In this embodiment, when the operator uses this device, an upward force is applied to the first handle 22 to drive the electrode fixing member 2 and the telescopic rod 16 to move upward. When the telescopic rod 16 reaches its maximum length, the force applied to the first handle 22 is stopped.

[0058] Insert the reaction tank 4 into the rotating sleeve 13 from above the protective sleeve 14.

[0059] Apply an upward force to the second handle 28 to drive the rotating block 21 and the clamping block 25 to rotate upward. After the rotating block 21 can no longer rotate, the second handle 28 can drive the clamping block 25 away from the rotating block 21.

[0060] Place the head of electrode 3 into positioning groove 23, then stop applying external force to second handle 28. Under the elastic force of elastic member 27, clamping block 25 moves towards rotating block 21, and contact spring 26 abuts against electrode 3 to clamp electrode 3.

[0061] Applying a downward force to the second handle 28 drives the rotating block 21 and the clamping block 25 to rotate downwards. After the rotating block 21 and the clamping block 25 rotate to a horizontal position, they can simultaneously drive the electrode fixing member 2 and the telescopic rod 16 to move downwards. During the descent, the electrode plate 3 can be inserted into the reaction tank 4.

[0062] The force applied to the second handle 28 stops when the limit block 17 abuts against the rotating block 21.

[0063] After the test is completed, an upward force is applied to the first handle 22 to drive the electrode fixing part 2 and the telescopic rod 16 to move upward. During this process, the electrode fixing part 2 will not rotate.

[0064] Once the telescopic rod 16 reaches its maximum length, stop applying force to the first handle 22, and then apply an upward force to the second handle 28 to drive the rotating block 21 and the clamping block 25 to rotate upward. After the rotating block 21 can no longer rotate, the second handle 28 can drive the clamping block 25 away from the rotating block 21, and finally remove the electrode sheet 3.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rapid heavy metal detection device for traditional Chinese medicinal materials, characterized in that, include: A stirring table (1) includes a base (11), a stirring assembly is provided on the front side of the base (11), and a reaction tank (4) is provided on the top of the stirring assembly. The stirring assembly is used to drive the reaction tank (4) to rotate. The base (11) has a fixed sleeve (15) on the rear side of the top surface, and a telescopic rod (16) is slidably installed inside the fixed sleeve (15). A limiting block (17) is provided on the front side of the top surface of the fixed sleeve (15). An electrode fixing component (2) is installed at the top of the telescopic rod (16), and the electrode fixing component (2) holds the electrode sheet (3). The electrode fixing component (2) includes a rotating block (21), the bottom end of the rotating block (21) is rotatably connected to the top end of the telescopic rod (16), and the rotating block (21) can rotate downwards to be perpendicular to the telescopic rod (16); The front side of the rotating block (21) is connected to a clamping block (25) via a reset structure. The reset structure is used to drive the clamping block (25) to move in the direction of the rotating block (21). The lower part of the tail end of the rotating block (21) is provided with a first handle (22), and the upper part of the front end of the clamping block (25) is provided with a second handle (28). The reaction tank (4) is located directly in front of the fixed sleeve (15) and directly below the front end of the rotating block (21).

2. The rapid heavy metal detection device for traditional Chinese medicinal materials according to claim 1, characterized in that: The stirring assembly includes a power source (12) and a rotating sleeve (13), and the reaction tank (4) is inserted into the rotating sleeve (13).

3. The rapid detection device for heavy metals in traditional Chinese medicinal materials as described in claim 1, characterized in that: The rotating block (21) has a positioning groove (23) extending downwards on its front end. The positioning groove (23) is used to limit the position of the electrode sheet (3). The clamping block (25) has a power-connecting spring (26) at the tail end corresponding to the positioning groove (23). The power-connecting spring (26) is used to connect the electrode sheet (3) to electricity.

4. The rapid detection device for heavy metals in traditional Chinese medicinal materials as described in claim 1, characterized in that: The reset structure includes a guide rod (24) and an elastic element (27), the elastic element (27) driving the clamping block (25) to move in the direction of the rotating block (21).

5. The rapid detection device for heavy metals in traditional Chinese medicinal materials as described in claim 1, characterized in that: When the telescopic rod (16) is lowered to its lowest position, the limiting block (17) abuts against the bottom surface of the rotating block (21).

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