Instrument for quantitatively calibrating active functional groups of humic acid and fulvic acid

Abstract

The utility model discloses an instrument for quantitatively calibrating active functional groups of humic acid and fulvic acid, which relates to the technical field of chemical component analysis and comprises an element analyzer, two test bottles are arranged in the element analyzer, the right surface of the element analyzer is fixedly connected with a fixed block, the upper surface of the fixed block is movably clamped with a connecting block, and the upper surface of the connecting block is fixedly connected with the element analyzer. A connecting frame is fixedly connected to the upper surface of a connecting block, two limiting blocks connected to the lead screw in a sleeving mode move relatively under the action of threads by rotating the lead screw, the two limiting blocks drive fixed clamping plates to move together in the relative moving process, and at the moment, the two clamping plates can clamp and fix a test bottle; the sample is accurately located at the optimal position detected by an instrument, stable conditions of a detection light path, electrode contact and the like are ensured, accurate positions of an image spectrum analysis element analyzer and a test bottle can ensure that a light source accurately irradiates the sample, a detector can receive stable and accurate spectrum signals, and accurate analysis of related elements of active functional groups is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of chemical composition analysis technology, and in particular to an instrument for quantitatively measuring the active functional groups of humic acid and fulvic acid. Background Technology

[0002] Instruments for the quantitative determination of active functional groups in humic and fulvic acids are key equipment for accurately determining the content and characteristics of various active functional groups in humic and fulvic acids. Humic and fulvic acids have attracted considerable attention in various fields such as soil improvement, agricultural fertilizer development, and environmental science research due to their unique chemical properties and significant impact on ecosystems. These instruments utilize a series of advanced technologies, such as spectral analysis, potentiometric titration, and elemental analysis, to detect and analyze samples of humic and fulvic acids, thereby providing crucial data support for research and applications in related fields. In practical operation, such instruments typically include the following main components:

[0003] 1. Sample Processing System: This system is used to pretreat humic acid and fulvic acid samples, including grinding, dissolving, and filtering, to ensure that the samples meet the testing requirements. This system needs to have high-precision control capabilities to ensure the consistency and accuracy of sample processing.

[0004] 2. Detection and Analysis Module: This is the core component of the instrument. Depending on the detection principle, an infrared spectrometer can be used to detect the characteristic absorption peaks of functional groups, a potentiometric titrator can be used to determine the content of acidic or basic functional groups, or an elemental analyzer can be used to determine the elemental composition related to the active functional groups. The detection and analysis module requires high sensitivity and high resolution to achieve accurate determination of active functional groups.

[0005] 3. Data Processing and Control System: This system is responsible for collecting, processing, and analyzing the data generated by the detection and analysis modules, and controlling the operation of the entire instrument. It needs to possess powerful data processing capabilities and stable control performance, be able to provide test results quickly and accurately, and adjust instrument parameters according to user needs.

[0006] 4. Sample support and fixation device: During the testing process, the test bottle containing the sample needs to be placed stably in a suitable position so that the detection and analysis module can perform accurate detection.

[0007] Currently, various types of instruments and equipment have been developed on the market to effectively calibrate the active functional groups of humic acid and fulvic acid. Some instruments employ high-precision spectroscopic detection technology, enabling detailed analysis of the characteristic absorption of functional groups; others focus on optimizing the potentiometric titration process to improve the accuracy and efficiency of detection; still others have upgraded their data processing systems, achieving automated data acquisition and analysis.

[0008] However, the existing instruments still have some problems in practical applications. Regarding sample support and fixation, many instruments' bottle-fixing devices lack precise positioning capabilities, and the bottles are prone to positional shifts during detection. This leads to deviations in the detection optical path, affecting the accuracy of the detection signal and consequently causing significant errors in the quantitative calibration results of active functional groups. Furthermore, existing fixation devices often only adapt to specific bottle sizes, lacking compatibility with bottles of different sizes and shapes. This makes them inflexible in dealing with the diverse needs of humic acid and fulvic acid sample detection, limiting the instrument's application range and detection efficiency. This application addresses these problems by proposing an improved solution: designing a sample support and fixation device with highly precise positioning capabilities that can adapt to different bottle sizes, thereby improving the accuracy and applicability of the instrument for the quantitative calibration of humic acid and fulvic acid active functional groups. Utility Model Content

[0009] To address the shortcomings of existing technologies, this invention provides an instrument for the quantitative calibration of active functional groups in humic acid and fulvic acid. It solves the problem that many instruments lack precise positioning capabilities in their sample holder fixing devices, leading to easy positional shifts in the sample holders during detection. This causes deviations in the detection optical path, affecting the accuracy of the detection signal and resulting in significant errors in the quantitative calibration results of active functional groups.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] An instrument for quantitatively determining the active functional groups of humic acid and fulvic acid includes an elemental analyzer. The elemental analyzer contains two test bottles. A fixing block is fixedly connected to the right surface of the elemental analyzer. A connecting block is movably engaged with the upper surface of the fixing block. A connecting frame is fixedly connected to the upper surface of the connecting block. Two limiting posts are movably sleeved within the connecting block. A return spring is fixedly connected to the opposite surfaces of the two limiting posts. A slot is formed on the surface of the connecting frame, and a lead screw is rotatably connected within the slot. Two clamping plates are provided on the left side of the connecting frame for holding the bottles. Limiting blocks are fixedly connected to the right surfaces of both clamping plates, and both limiting blocks are movably connected to the slots.

[0012] Preferably, both limiting blocks are threadedly connected to the lead screw, and the surface of the fixing block is provided with two sets of round holes, which are respectively movably connected to the two limiting posts.

[0013] Preferably, a circular groove is formed through the front surface of the connecting block, and the two limiting posts are movably sleeved in the circular groove. A connecting post is fixedly connected inside the circular groove, and the connecting post is fixedly connected to two reset springs. A push block is fixedly connected to the annular side of each of the two limiting posts.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By rotating the lead screw, the two limiting blocks sleeved on it move relative to each other due to the thread action. During the relative movement of the two limiting blocks, the fixed clamping plates will move together. At this time, the two clamping plates can clamp and fix the test bottle, making it accurately in the optimal position for instrument detection. This ensures the stability of the detection optical path, electrode contact, and other conditions. The accurate position of the test bottle ensures that the light source accurately illuminates the sample, so that the detector receives a stable and accurate spectral signal, which is beneficial for the accurate analysis of elements related to active functional groups.

[0016] 2. Pressing the two push blocks relative to each other moves the fixed limiting posts together, compressing the two return springs. At this time, the two limiting posts will completely disengage from the two sets of round holes on the fixed block, opening the limit. Then, moving the connecting block upward moves the fixed connecting frame together, and the two clamping plates connected inside the connecting frame also move accordingly. After adjusting the height of the two clamping plates as needed, the two return springs drive the limiting posts to reset. At this time, the height of the clamping plates can be adjusted. The height-adjustable clamping plates can adapt to test bottles of different heights, ensuring that no matter the size of the test bottle, it can be stably fixed in a suitable position, which is convenient for the elemental analyzer to perform accurate detection. Attached Figure Description

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] Figure 1 This is an overall structural diagram of the present invention;

[0019] Figure 2 This is an exploded view of the overall structure of this utility model;

[0020] Figure 3 This is a structural diagram of the clamping plate of this utility model;

[0021] Figure 4 This is a structural diagram of the limiting column of this utility model.

[0022] Legend: 1. Elemental analyzer; 2. Test bottle; 3. Clamping plate; 4. Connecting frame; 5. Fixing block; 6. Lead screw; 7. Round hole; 8. Slot; 9. Connecting block; 10. Limiting block; 11. Return spring; 12. Connecting column; 13. Push block; 14. Limiting column; 15. Round groove. Detailed Implementation

[0023] This application provides an instrument for the quantitative calibration of active functional groups in humic and fulvic acids. It effectively solves the problem that many instruments lack precise positioning capabilities in their sample holding and fixing devices, leading to easy positional shifts in the sample bottles during detection. This causes deviations in the detection optical path, affecting the accuracy of the detection signal and resulting in significant errors in the quantitative calibration results of active functional groups. The application designs a sample holding and fixing device with highly precise positioning capabilities that can adapt to different sample bottle sizes, thereby improving the accuracy and applicability of the instrument for the quantitative calibration of active functional groups in humic and fulvic acids.

[0024] Example

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application effectively solves the problem that many instruments' bottle fixing devices lack precise positioning capabilities in terms of sample carrying and fixation. This leads to easy positional shifts in the bottle during detection, causing deviations in the detection optical path, affecting the accuracy of the detection signal, and consequently resulting in significant errors in the quantitative calibration results of active functional groups. The overall approach is as follows:

[0026] To address the problems existing in the prior art, this utility model provides an instrument for quantitatively calibrating the active functional groups of humic acid and fulvic acid. It includes an elemental analyzer 1, with two test bottles 2 inside the analyzer 1. A fixing block 5 is fixedly connected to the right surface of the analyzer 1. A connecting block 9 is movably engaged on the upper surface of the fixing block 5. A connecting frame 4 is fixedly connected to the upper surface of the connecting block 9. Two limiting posts 14 are movably sleeved inside the connecting block 9. Return springs 11 are fixedly connected to the opposite surfaces of the two limiting posts 14. A slot 8 is formed on the surface of the connecting frame 4, and a lead screw 6 is rotatably connected within the slot 8. Two clamping plates 3 are provided on the left side of the connecting frame 4 for clamping. Limiting blocks 10 are fixedly connected to the right surface of each clamping plate 3, and both limiting blocks 10 are movably connected to the slot 8. During use, the elemental analyzer 1... Warm combustion converts various elements in the sample into detectable gases or other forms, and then the content of the elements is determined by a specific detector. For humic acid and fulvic acid, the content of elements such as carbon, hydrogen, oxygen, and nitrogen can be determined. The situation of active functional groups can then be indirectly understood through calculation. By rotating the lead screw 6, the two limiting blocks 10 sleeved on it are moved relative to each other by the thread action. During the relative movement of the two limiting blocks 10, the fixed clamping plates 3 will also move together. At this time, the two clamping plates 3 can clamp and fix the test bottle 2, making it accurately in the optimal position for instrument detection. This ensures the stability of the detection optical path, electrode contact, and other conditions. The accurate position of the test bottle 2 ensures that the light source accurately illuminates the sample, so that the detector receives a stable and accurate spectral signal, which is conducive to the accurate analysis of elements related to active functional groups.

[0027] Both limiting blocks 10 are threadedly connected to the lead screw 6. The surface of the fixing block 5 has two sets of circular holes 7, which are respectively movably connected to the two limiting posts 14. The front surface of the connecting block 9 has a through-hole circular groove 15, and both limiting posts 14 are movably connected to the circular groove 15. A connecting post 12 is fixedly connected inside the circular groove 15, and the connecting post 12 is fixedly connected to two return springs 11. Push blocks 13 are fixedly connected to the annular sides of both limiting posts 14. For test bottles 2 of different sizes and shapes, the height of the clamping plate 3 needs to be adjusted to ensure stable clamping. Pressing the two push blocks 13 relative to each other causes the fixed limiting posts 14 to move together, compressing the two... When the reset spring 11 is activated, the two limiting posts 14 will completely disengage from the two sets of round holes 7 on the fixed block 5, opening the limit. At this time, the upward moving connecting block 9 will drive the fixed connecting frame 4 to move together, and the two clamping plates 3 connected inside the connecting frame 4 will also move accordingly. After adjusting the height of the two clamping plates 3 as needed, the two reset springs 11 will drive the limiting posts 14 to reset, thus completing the adjustment of the height of the clamping plates 3. The height-adjustable clamping plates 3 can adapt to test bottles 2 of different heights, ensuring that no matter the size of the test bottle 2, it can be stably fixed in a suitable position, facilitating accurate detection by the element analyzer 1.

[0028] Among them, elemental analyzer 1: converts the elements in humic acid and fulvic acid samples into detectable forms through high-temperature combustion, determines the content of elements such as carbon, hydrogen, oxygen, and nitrogen, and indirectly understands the situation of active functional groups. It is the core equipment for detection.

[0029] Test bottle 2: Used to hold humic acid and fulvic acid samples, providing the target for elemental analyzer 1. It needs to be stably fixed during the detection process to ensure that the sample is in a suitable detection position.

[0030] Clamping plate 3: Driven by lead screw 6 and limit block 10, clamping and fixing test bottle 2, so that it is accurately in the optimal position for instrument detection, ensuring stable detection optical path and electrode contact, which is conducive to accurate detection;

[0031] Connecting frame 4: connects clamping plate 3 and connecting block 9. When adjusting the height of clamping plate 3, it moves with connecting block 9, causing clamping plate 3 to move up and down to adapt to test bottles 2 of different heights.

[0032] Fixed block 5: Fixed on the right surface of element analyzer 1, it is movably engaged with connecting block 9 to provide support for connecting block 9. The round hole 7 on its surface cooperates with the limiting post 14 to restrict the movement of connecting block 9.

[0033] When the lead screw 6 rotates, the limiting block 10 sleeved on it moves relative to the screw due to the thread action, thereby driving the clamping plate 3 to move, thereby clamping or releasing the test bottle 2 and ensuring the accurate positioning of the test bottle 2.

[0034] Circular hole 7: It is formed on the surface of the fixed block 5 and is movably connected with the limiting post 14. Under normal conditions, it restricts the vertical movement of the connecting block 9. During adjustment, the height of the connecting block 9 can be adjusted by disengaging the connection.

[0035] Slot 8: Located on the surface of the connecting frame 4, it is used to rotate the connecting screw 6 and at the same time provides a movable track for the limiting block 10, so that the limiting block 10 can move in the slot 8 with the screw 6.

[0036] Connecting block 9: It is movable and attached to the fixed block 5. The height can be adjusted by pressing the push block 13, which in turn drives the connecting frame 4 and the clamping plate 3 to adjust their height.

[0037] Limiting block 10: It is threadedly connected to the lead screw 6 and moves in the slot 8. When the lead screw 6 rotates, it drives the clamping plate 3 to move, thereby clamping and fixing the test bottle 2 and ensuring the accurate position of the test bottle 2.

[0038] Reset spring 11: Connected between limit post 14 and connecting post 12, when the height of clamping plate 3 is adjusted, it is compressed and can drive limit post 14 to reset, so that connecting block 9 returns to the fixed state;

[0039] Connecting post 12: Fixed in the circular groove 15, connecting the reset spring 11, providing fixed support for the reset spring 11, and ensuring that the reset spring 11 can perform its reset function normally;

[0040] Push block 13: Fixed on the annular side of the limiting post 14. Pressing the push block 13 can move the limiting post 14, compress the reset spring 11, and realize the unlocking operation of the height adjustment of the connecting block 9.

[0041] Limiting post 14: It is movably sleeved inside the connecting block 9 and cooperates with the round hole 7 on the fixing block 5 to limit the height of the connecting block 9. It can be disengaged from the round hole 7 during adjustment and reset under the action of the reset spring 11 after adjustment.

[0042] Circular groove 15: It is formed on the front surface of the connecting block 9 to accommodate the limiting post 14, the connecting post 12 and the return spring 11, providing installation space for these components and ensuring their normal operation.

[0043] Working principle:

[0044] During operation, the elemental analyzer 1 converts various elements in the sample into detectable gases or other forms through high-temperature combustion. The content of these elements is then determined by a specific detector. For humic acid and fulvic acid, the analyzer primarily measures the content of carbon, hydrogen, oxygen, and nitrogen. The analysis then indirectly reveals the presence of active functional groups through calculation. Rotating the lead screw 6 causes the two limiting blocks 10 fitted on it to move relative to each other due to the threaded action. This relative movement of the two limiting blocks 10 moves the fixed clamping plates 3, which then clamp and fix the test bottle 2, ensuring it is accurately positioned for instrument detection. This guarantees stable conditions for the detection optical path and electrode contact. The precise positioning of the test bottle 2 ensures accurate illumination of the sample by the light source, allowing the detector to receive a stable and accurate spectral signal, which is beneficial for the precise analysis of active functional groups. For test bottles 2 of different sizes and shapes, the height of the clamping plate 3 needs to be adjusted to ensure stable clamping. Pressing the two push blocks 13 moves the fixed limiting post 14 together, compressing the two return springs 11. At this time, the two limiting posts 14 will completely disengage from the two sets of round holes 7 on the fixed block 5, opening the limit. Then, moving the connecting block 9 upward moves the fixed connecting frame 4 together, and the two clamping plates 3 connected in the connecting frame 4 also move accordingly. After adjusting the height of the two clamping plates 3 as needed, the two return springs 11 drive the limiting post 14 to reset. At this time, the height of the clamping plate 3 can be adjusted. The height-adjustable clamping plate 3 can adapt to test bottles 2 of different heights, ensuring that no matter the size of the test bottle 2, it can be stably fixed in a suitable position, which is convenient for the element analyzer 1 to perform accurate detection.

[0045] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications 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 instrument for quantitatively calibrating active functional groups of humic and fulvic acids, comprising an elemental analyzer (1), two test bottles (2) are arranged in the elemental analyzer (1), characterized in that, The element analyzer (1) has a fixed block (5) fixedly connected to its right surface, and a connecting block (9) is movably engaged on the upper surface of the fixed block (5). A connecting frame (4) is fixedly connected to the upper surface of the connecting block (9). Among them, two limiting posts (14) are movably sleeved inside the connecting block (9), and a reset spring (11) is fixedly connected to the opposite face of the two limiting posts (14). A slot (8) is opened on the surface of the connecting frame (4), and a lead screw (6) is rotatably connected in the slot (8). Two clamping plates (3) for clamping are provided on the left side of the connecting frame (4).

2. The instrument for quantitatively calibrating the active functional groups of humic and fulvic acids according to claim 1, characterized in that: Limiting blocks (10) are fixedly connected to the right surfaces of both clamping plates (3); Both of the limiting blocks (10) are movably connected to the card slot (8).

3. An apparatus for quantitatively calibrating the active functional groups of humic and fulvic acids as claimed in claim 2, characterized in that: Both of the aforementioned limiting blocks (10) are threadedly connected to the lead screw (6).

4. The instrument for quantitatively calibrating the active functional groups of humic and fulvic acids of claim 1, characterized in that: The surface of the fixing block (5) is provided with two sets of round holes (7); The two sets of circular holes (7) are respectively movably connected to two limiting posts (14).

5. The instrument for quantitatively calibrating the active functional groups of humic and fulvic acids of claim 1, characterized in that: A circular groove (15) is provided through the front surface of the connecting block (9); Both of the limiting posts (14) are movably connected to the circular groove (15).

6. An apparatus for quantitatively calibrating the active functional groups of humic and fulvic acids as claimed in claim 5, characterized in that: A connecting column (12) is fixedly connected inside the circular groove (15); The connecting post (12) is fixedly connected to two reset springs (11), and push blocks (13) are fixedly connected to the annular sides of the two limiting posts (14).

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