A flavor detection chromatograph

Abstract

This application relates to the field of laboratory instrument manufacturing technology, and in particular to a fragrance detection chromatograph, including a base plate, a detection mechanism on the top of the base plate, and a stirring mechanism on one side of the detection mechanism. This invention utilizes components such as a lower clamping plate, an upper clamping plate, a C-shaped clamping plate, a third gear in the stirring mechanism, and a brushless motor, a first gear, and a second gear in the detection mechanism. The first and second gears are connected via the output shaft of the brushless motor, and the meshing of the second and third gears allows the brushless motor to drive the third gear through a gear transmission structure. This, in turn, rotates the lower and upper clamping plates, thus stirring the fragrance in the clamped test tubes. This design allows the device to uniformly mix and pre-treat the screened fragrance samples through mechanical transmission, providing a stable and uniform sample for subsequent detection, and improving the accuracy and reliability of the detection results.

Description

Technical Field

[0001] This application relates to the field of laboratory instrument manufacturing technology, and in particular to a chromatograph for detecting fragrances. Background Technology

[0002] The fragrance market is increasingly demanding higher product quality, leading to a growing need for precise testing of fragrance components. Existing fragrance testing equipment is largely single-function, making it difficult to integrate sample mixing and testing. This not only prolongs the testing cycle but also increases human error. Furthermore, some equipment suffers from complex transmission structures, low power transmission efficiency, high energy consumption, and poor stability. Regarding sample fixation, traditional clamping methods lack flexibility, cannot accommodate fragrance tubes of different sizes, and are prone to loosening during mixing, severely impacting the continuity and accuracy of testing. In addition, the fragmented storage of test data and the lack of systematic management hinder enterprises from conducting comprehensive monitoring and analysis of fragrance quality throughout the entire process.

[0003] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: most devices employ manual stirring or single clamping, resulting in poor sample uniformity and easy sample loss due to test tube shaking; the fixed clamping structure cannot adapt to test tubes of different sizes, lacking flexibility. Existing devices mostly use bolt fixing or plug-in connections, which are time-consuming to install and have low positioning accuracy; errors in the docking between the detection box and the main unit can easily lead to sampling position deviation. Utility Model Content

[0004] To address the problems mentioned in the background section, this application provides a chromatograph for detecting fragrances.

[0005] The present application provides a fragrance detection chromatograph, which adopts the following technical solution: A fragrance detection chromatograph includes a base plate, a detection mechanism is provided on the top of the base plate, and a stirring mechanism is provided on one side of the detection mechanism;

[0006] The stirring mechanism includes a lower clamping plate and an upper clamping plate for holding the spice test tube, a C-shaped clamping plate for clamping the lower clamping plate and the upper clamping plate, and a third gear for driving the lower clamping plate and the upper clamping plate to rotate. The lower clamping plate and the upper clamping plate together form a cavity for holding the test tube.

[0007] Optionally, the detection mechanism includes a housing with a built-in detection module, a memory for storing detection information, and a transmission assembly for driving the third gear to rotate. The transmission assembly includes a brushless motor fixedly mounted on the bottom of the housing, a first gear fixedly mounted on the output end of the brushless motor, a second gear meshing with the first gear on one side, and a bearing side plate for movably mounting the first and second gears. The bearing side plate supports and fixes the first and second gears, ensuring stability and coaxiality during gear transmission.

[0008] Optionally, the stirring mechanism further includes a detection box movably installed at the bottom of the equipment housing. Iron blocks are fixedly installed on both the left and right sides of the detection box, and the iron blocks are used to magnetically attract magnetic blocks inside the equipment housing for positioning.

[0009] Optionally, the device housing is fixedly mounted on the top of the base plate, and the memory is fixedly mounted on one side of the device housing by bolts; a baffle is fixedly connected to one side of the device housing, and the baffle is used to prevent the detection box from detaching from the detection area at the bottom of the device housing.

[0010] Optionally, the C-shaped clamp is movably sleeved on one side of the slot formed by the lower clamping plate, the upper clamping plate, and the clamping strip, and the C-shaped clamp is elastic. The C-shaped clamp is elastic, and the clamp is on the outside of the slot, clamping the lower clamping plate and the upper clamping plate to fix the test tube, facilitating quick loading and unloading of samples.

[0011] Optionally, a hole is provided on one side of the third gear, and the hole is used to allow the sampling needle to enter the clamped test tube.

[0012] Optionally, a locking strip is fixedly connected to the detection box, and the lower clamping plate and the upper clamping plate are fixedly installed on the detection box. The locking strip, together with the lower clamping plate and the upper clamping plate, forms a slot for the C-shaped clamping plate to be fitted.

[0013] Optionally, the first gear of the transmission assembly is directly connected to the output shaft of the brushless motor, and the second gear meshes with both the first gear and the third gear of the stirring mechanism, forming a power transmission path.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. This utility model incorporates a stirring mechanism consisting of a lower clamping plate, an upper clamping plate, a C-shaped clamping plate, and a third gear, as well as a detection mechanism comprising a brushless motor, a first gear, and a second gear. The first and second gears, connected via the output shaft of the brushless motor, mesh, and the second and third gears mesh, enabling the brushless motor to drive the third gear through a gear transmission structure. This, in turn, rotates the lower and upper clamping plates, thus stirring the spices within the clamped test tube. This design allows the device to uniformly mix and pre-treat the screened spice samples via mechanical transmission, providing a stable and uniform sample for subsequent testing and improving the accuracy and reliability of the test results.

[0016] 2. This utility model, through the inclusion of a detection box, iron blocks, magnetic blocks, clamping strips, and C-shaped clamping plates, utilizes the magnetic attraction between the iron blocks on both sides of the detection box and the magnetic blocks inside the device casing. Furthermore, the clamping strips, lower clamping plate, upper clamping plate, and C-shaped clamping plate form a slotted clamping mechanism, enabling the detection box to stably hold the spice test tubes via magnetic positioning and elastic clamping. Simultaneously, the hole on one side of the third gear facilitates precise entry of the sampling needle into the test tube for sampling. This design allows for rapid installation, positioning, and reliable fixation of the selected spice test tubes through a detachable magnetic positioning structure and elastic clamping structure. This ensures the stability of the test tubes during stirring and facilitates smooth sampling operations during testing, enhancing the practicality and ease of operation of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0018] Figure 2 This is a partial structural diagram of an embodiment of this application;

[0019] Figure 3 This is a partial structural diagram of the testing mechanism in an embodiment of this application;

[0020] Figure 4 This is a partial structural diagram of the stirring mechanism in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the partial structure installation of the stirring mechanism in an embodiment of this application;

[0022] Reference numerals: 1. Base plate; 2. Detection mechanism; 201. Equipment casing; 202. Storage device; 203. Baffle; 204. Brushless motor; 205. First gear; 206. Second gear; 207. Bearing side plate; 3. Stirring mechanism; 301. Detection box; 302. Iron block; 303. Third gear; 304. Lower clamping plate; 305. Upper clamping plate; 306. Clamping strip; 307. C-shaped clamping plate. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a chromatograph for detecting fragrances.

[0025] like Figures 1 to 3As shown, a fragrance detection chromatograph includes a base plate 1, with a detection mechanism 2 mounted on top of the base plate 1. The detection mechanism 2 includes a housing 201 housing a built-in detection module, a memory 202 for storing detection information, and a transmission assembly for driving a third gear 303 to rotate. The transmission assembly includes a brushless motor 204 fixedly mounted on the bottom of the housing 201, a first gear 205 fixedly mounted on the output end of the brushless motor 204, a second gear 206 meshing with one side of the first gear 205, and a bearing side plate 207 for movably mounting the first gear 205 and the second gear 206. The housing 201 provides a protective space for the detection module, the memory 202 can persistently store detection data for subsequent analysis, and the transmission assembly stably transmits power to the brushless motor 204 through gear meshing, ensuring power supply during the detection process. The device housing 201 is fixedly mounted on the top of the base plate 1, and the memory 202 is fixedly mounted on one side of the device housing 201 by bolts. A baffle 203 is fixedly connected to one side of the device housing 201, which is used to prevent the detection box 301 from detaching from the detection area at the bottom of the device housing 201. The base plate 1 provides stable support for the overall structure, the bolt connection makes it easy to install and remove the memory 202, and the baffle 203 ensures that the detection box 301 is accurately positioned, avoiding displacement during detection that may affect the detection accuracy.

[0026] like Figure 3 As shown, the first gear 205 of the transmission assembly is directly connected to the output shaft of the brushless motor 204, and the second gear 206 meshes with both the first gear 205 and the third gear 303 of the stirring mechanism 3, forming a power transmission path. Direct connection reduces power transmission loss, and gear meshing ensures balanced power distribution, providing continuous and stable rotational power to the stirring mechanism 3, ensuring a smooth and uninterrupted stirring process.

[0027] like Figures 3 to 5 As shown, a stirring mechanism 3 is provided on one side of the detection mechanism 2. The stirring mechanism 3 includes a lower clamping plate 304 and an upper clamping plate 305 for holding the fragrance test tube, a C-shaped clamping plate 307 for clamping the lower clamping plate 304 and the upper clamping plate 305, and a third gear 303 for driving the lower clamping plate 304 and the upper clamping plate 305 to rotate. The lower clamping plate 304 and the upper clamping plate 305 together form a cavity for holding the test tube. The cavity formed by the lower clamping plate 304 and the upper clamping plate 305 can firmly hold the test tube, the C-shaped clamping plate 307 enhances the clamping reliability, and the third gear 303 drives the clamping plate to rotate, so that the fragrance in the test tube is fully mixed, providing a uniform sample for accurate detection.

[0028] like Figure 3As shown, the stirring mechanism 3 also includes a detection box 301 movably installed at the bottom of the equipment housing 201. Iron blocks 302 are fixedly installed on both the left and right sides of the detection box 301. The iron blocks 302 are used to magnetically attract and position the magnetic blocks inside the equipment housing 201. The movable installation of the detection box 301 facilitates replacement and cleaning. The magnetic attraction between the iron blocks 302 and the magnetic blocks enables rapid positioning, ensuring that the detection box 301 is accurately placed in the detection area, thus improving the convenience and stability of the detection process.

[0029] like Figures 3 to 5 As shown, the C-shaped clamp 307 is movably sleeved on one side of the slot formed by the lower clamping plate 304, the upper clamping plate 305, and the clamping strip 306. The C-shaped clamp 307 is elastic. The elastic C-shaped clamp 307 can adapt to test tubes of different specifications. It can be quickly installed by sleeved connection through the slot. When clamping the test tube, it provides appropriate clamping force to ensure that the test tube is firmly fixed and to avoid damage to the test tube due to excessive compression. A hole is opened on one side of the third gear 303, and the hole is used to allow the sampling needle to enter the interior of the clamped test tube. The clamping strip 306 is fixedly connected to the detection box 301. The lower clamping plate 304 and the upper clamping plate 305 are fixedly installed on the detection box 301. The clamping strip 306, together with the lower clamping plate 304 and the upper clamping plate 305, forms a slot for the C-shaped clamp 307 to sleeve. The hole in the third gear 303 provides a precise channel for the sampling needle, ensuring smooth sampling operations. The groove formed by the clip 306 and the clamping plate provides installation guidance for the C-shaped clamping plate 307, ensuring tight assembly of all components of the stirring mechanism 3 and improving the overall structural coordination.

[0030] Example

[0031] Raw material quality inspection on the spice production line

[0032] In the raw material quality inspection stage of fragrance manufacturing enterprises, operators need to use a fragrance detection chromatograph to test the component uniformity of purchased natural fragrance raw materials. The specific operating procedure is as follows:

[0033] The operator first takes the spice sample test tube to be tested and places it vertically on top of the lower clamping plate 304 of the stirring mechanism 3. The cavity formed by the lower clamping plate 304 and the upper clamping plate 305 can accommodate standard-sized test tubes. The operator then slowly presses down on the upper clamping plate 305 to stably clamp the test tube between the two plates. Next, the operator holds the test box 301 and aligns it with the testing area at the bottom of the equipment housing 201. The iron blocks 302 on both sides of the test box 301 will magnetically attract the pre-set magnetic blocks inside the equipment housing 201, thus achieving initial positioning of the test box 301. The operator pushes the test box 301 until it contacts the baffle 203 on one side of the equipment housing 201. The baffle 203 prevents the test box 301 from detaching from the testing area at the bottom of the equipment housing 201, ensuring accurate positioning. To further secure the test tube, the operator takes out a C-shaped clamp 307 and movably attaches it to one side of the groove formed by the lower clamping plate 304, the upper clamping plate 305, and the locking strip 306. The elastic C-shaped clamp 307 will tightly lock the groove, preventing the test tube from loosening during subsequent stirring.

[0034] The brushless motor 204 of the detection mechanism 2 is activated. This motor is fixedly installed at the bottom of the equipment housing 201, and its output end is directly connected to the first gear 205. When the brushless motor 204 operates, it drives the first gear 205 to rotate. Through meshing transmission, the first gear 205 drives the second gear 206, which meshes with it on one side, to rotate. The second gear 206 simultaneously meshes with the third gear 303 of the stirring mechanism 3, thereby transmitting power to the third gear 303. When the third gear 303 rotates, it drives the lower clamping plate 304 and the upper clamping plate 305, which are fixedly installed on the detection box 301, to rotate synchronously, thereby stirring the fragrance sample in the test tube. During the stirring process, the fragrance sample is uniformly mixed in the test tube, ensuring that the components are representative during the detection. The detection module built into the detection mechanism 2 starts working and performs chromatographic analysis on the fragrance components in the test tube. During the detection process, the sampling needle enters the clamped test tube through a hole opened on one side of the third gear 303 to extract the sample for detection. The detected information is stored in real time in a memory 202 that is fixed to one side of the equipment housing 201 by bolts, which facilitates subsequent data query and analysis.

[0035] After the test is completed, turn off the brushless motor 204. After the third gear 303 has completely stopped rotating, remove the C-shaped clamp 307, open the upper clamping plate 305, and take out the test tube that has been tested. Then, remove the test box 301 from the test area at the bottom of the equipment housing 201 to complete one test operation.

[0036] The implementation principle of the fragrance detection chromatograph in this application embodiment is as follows:

[0037] First, the spice sample to be tested is loaded into a special test tube. The test tube is clamped by the cavity formed by the lower clamping plate 304 and the upper clamping plate 305 of the stirring mechanism 3. The elastic C-shaped clamping plate 307 clamps the test tube in the slot formed by the clamping strip 306, the lower clamping plate 304, and the upper clamping plate 305, further fixing the test tube and ensuring that the test tube does not shake during the stirring process. At the same time, the detection box 301 equipped with the clamping structure is magnetically positioned by the iron blocks 302 on both sides and the magnetic blocks inside the equipment shell 201, and is accurately embedded into the detection area at the bottom of the equipment. Its displacement is restricted by the baffle 203, thus completing the sample installation preparation.

[0038] Secondly, after the brushless motor 204 of the detection mechanism 2 is powered on, it starts and its output shaft directly drives the first gear 205 to rotate at high speed. The second gear 206 simultaneously meshes with the first gear 205 and the third gear 303 of the stirring mechanism 3, transmitting the rotational power of the motor to the stirring mechanism 3. The rotation of the first gear 205 drives the second gear 206 to rotate in the opposite direction through inter-tooth meshing. The second gear 206 then drives the third gear 303 to rotate in the same direction, forming a three-stage gear transmission chain of "motor → first gear 205 → second gear 206 → third gear 303", providing stable power for the stirring process.

[0039] Next, the third gear 303 is linked with the lower clamping plate 304 and the upper clamping plate 305 to drive the clamped test tube to rotate at a constant speed around the central axis. The spice sample in the test tube is fully mixed under the action of centrifugal force and shear force to ensure the uniformity of the sample before testing. During the stirring process, the through hole on one side of the third gear 303 is kept aligned with the testing area to reserve a channel for the subsequent insertion of the sampling needle into the test tube and avoid mechanical interference between the stirring mechanism 3 and the sampling operation.

[0040] Next, after stirring, the external sampling needle extends into the test tube through the through hole of the third gear 303, extracts the homogenized fragrance sample, and injects it into the detection module inside the device housing 201. The detection module, based on the principle of chromatographic analysis, separates, detects, and quantifies the sample components—different volatile components flow out sequentially in the chromatographic column due to differences in retention time, are converted into electrical signals by the sensor, and the signals are synchronously transmitted to the memory 202 to store detection data such as component peak values ​​and concentration parameters in real time, providing raw data support for subsequent analysis.

[0041] Finally, after the testing process is completed, the brushless motor 204 stops running, the stirring mechanism 3 stops synchronously with the third gear 303, the operator releases the C-shaped clamp 307, takes out the test tube after testing, the test box 301 is easily disassembled by the magnetic positioning structure, which is convenient for cleaning or replacement, and the test data stored in the memory 202 can be exported through the device interface, so that the operator can perform component spectrum analysis, concentration calculation or generate test report through software, and complete the process.

[0042] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A chromatograph for detecting fragrances, comprising a base plate (1), characterized in that: A detection mechanism (2) is provided on the top of the base plate (1), and a stirring mechanism (3) is provided on one side of the detection mechanism (2). The stirring mechanism (3) includes a lower clamping plate (304) and an upper clamping plate (305) for clamping the spice test tube, a C-shaped clamping plate (307) for clamping the lower clamping plate (304) and the upper clamping plate (305), and a third gear (303) for driving the lower clamping plate (304) and the upper clamping plate (305) to rotate. The lower clamping plate (304) and the upper clamping plate (305) together form a cavity for clamping the test tube.

2. The chromatograph for detecting fragrances according to claim 1, characterized in that: The detection mechanism (2) includes a device housing (201) with a built-in detection module, a memory (202) for storing detection information, and a transmission assembly for driving the third gear (303) to rotate; the transmission assembly includes a brushless motor (204) fixedly installed at the bottom of the device housing (201), a first gear (205) fixedly installed at the output end of the brushless motor (204), a second gear (206) meshing with the first gear (205) on one side, and a bearing side plate (207) for movably installing the first gear (205) and the second gear (206).

3. The chromatograph for detecting fragrances according to claim 1, characterized in that: The stirring mechanism (3) also includes a detection box (301) movably installed at the bottom of the equipment housing (201). Iron blocks (302) are fixedly installed on both the left and right sides of the detection box (301). The iron blocks (302) are used to magnetically attract the magnetic blocks inside the equipment housing (201) for positioning.

4. The chromatograph for detecting fragrances according to claim 2, characterized in that: The device housing (201) is fixedly installed on the top of the base plate (1), and the memory (202) is fixedly installed on one side of the device housing (201) by bolts; a baffle (203) is fixedly connected to one side of the device housing (201), and the baffle (203) is used to restrict the detection box (301) from leaving the detection area at the bottom of the device housing (201).

5. The chromatograph for detecting fragrances according to claim 3, characterized in that: The C-shaped clamp (307) is movably sleeved on one side of the slot formed by the lower clamping plate (304), the upper clamping plate (305) and the clamping strip (306), and the C-shaped clamp (307) is elastic.

6. The chromatograph for detecting fragrances according to claim 1 or 3, characterized in that: The third gear (303) has a hole on one side, and the hole is used to allow the sampling needle to enter the clamped test tube.

7. The chromatograph for detecting fragrances according to claim 3, characterized in that: A clip (306) is fixedly connected to the detection box (301). The lower clamping plate (304) and the upper clamping plate (305) are fixedly installed on the detection box (301). The clip (306), together with the lower clamping plate (304) and the upper clamping plate (305), form a slot for the C-shaped clamping plate (307) to be fitted.

8. The chromatograph for detecting fragrances according to claim 2, characterized in that: The first gear (205) of the transmission assembly is directly connected to the output shaft of the brushless motor (204), and the second gear (206) simultaneously meshes with the first gear (205) and the third gear (303) of the stirring mechanism (3), forming a power transmission path.

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