Temperature control and homogenization integrated equipment of vibration spectrometer

Through the automatic lifting, amplitude modulation and frequency modulation mechanism, the problem of sample uniformity in the vibration spectrometer sample pool is solved, the uniformity and homogeneity of high viscosity and volatile samples are achieved, and the accuracy of spectral data is improved.

CN120651764APending Publication Date: 2025-09-16JIANGSU FOOD & PHARMA SCI COLLEGE
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Patent Information

Application Number
CN202511031524.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

The sample cell of a traditional vibration spectrometer cannot guarantee sample uniformity, especially for high-viscosity liquids and volatile samples, which leads to spectral data errors, and existing devices cannot automatically adjust the vibration mode.

Method used

It adopts automatic lifting, amplitude modulation and frequency modulation mechanism, identifies the liquid level through the air bag, adjusts the amplitude and frequency to ensure sample uniformity, prevent liquid splashing and achieve full homogenization.

Benefits of technology

The uniformity and homogeneity of the sample during vibration are achieved, the spectral data error is reduced, and the detection needs of different types of samples are adapted.

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Abstract

The invention relates to the technical field of vibration spectrometers, in particular to temperature control and homogenization integrated equipment of a vibration spectrograph, which comprises a shell and a touch screen arranged on the upper surface of the shell, a placement groove is formed in the upper surface of the shell, a temperature control cylinder is fixedly connected in the placement groove, a rotating shaft is rotatably arranged in the temperature control cylinder, and the temperature control cylinder is connected with the touch screen. And one end of the rotating shaft is fixedly connected with a micro motor. According to the temperature control and homogenization integrated equipment of the vibration spectrometer, through the arrangement of the air bag, when water is injected, the liquid level position can be automatically recognized, it can be guaranteed that the vibration plate is located below the liquid level, vibration can be located in liquid, the liquid is prevented from splashing during vibration, and then the uniformity of the liquid during detection is guaranteed; the gas in the air bag enters the inner cavity of the rotating shaft through the guide pipe, and the liquid with higher viscosity can automatically realize full homogenization of a sample, so that the vibration frequency is reduced, and the high-viscosity sample is allowed to have time to fully respond to large-amplitude movement.
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Description

Technical Field

[0001] The present invention relates to the technical field of vibration spectrometers, and in particular to a temperature control and homogenization integrated device for a vibration spectrometer. Background Art

[0002] Vibrational spectroscopy is an analytical technique that analyzes the composition and structure of substances based on the light absorption properties of molecular vibrational modes. It mainly includes infrared spectroscopy and Raman spectroscopy. Vibrational spectrometers are widely used in chemistry, materials science, medicine, environmental monitoring and other fields. When performing vibrational spectroscopy analysis, the state and uniformity of the sample have a very important impact on the accuracy of the spectrum.

[0003] Traditional sample cells mostly configure samples in a static manner, which cannot guarantee the uniformity of the samples throughout the sample cell. Molecular aggregation or precipitation inside the sample cell may cause errors in the collected spectral data, affecting the final spectrum analysis and interpretation. In addition, existing devices are not convenient for automatically using different oscillation modes according to different types of samples, such as high-viscosity liquids, volatile samples, etc. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a temperature control and homogenization integrated device for a vibration spectrometer.

[0005] The present invention adopts the following technical solution: a temperature control and homogenization integrated device for a vibration spectrometer, comprising a housing and a touch screen arranged on the upper surface of the housing, the upper surface of the housing having a placement groove, a temperature control cylinder fixedly connected to the placement groove, a rotating shaft rotatably arranged in the temperature control cylinder, one end of the rotating shaft being fixedly connected to a micro motor, and further comprising: An automatic lifting mechanism capable of automatically identifying the height of the liquid level, the automatic lifting mechanism being arranged in the inner cavity of the temperature control cylinder; An automatic amplitude modulation mechanism capable of automatically adjusting the amplitude according to the viscosity of the liquid, the automatic amplitude modulation mechanism being arranged in the automatic lifting mechanism; And an automatic frequency modulation mechanism, which can automatically adjust the frequency according to the viscosity of the liquid, and the automatic frequency modulation mechanism is arranged in the automatic lifting mechanism.

[0006] As a further description of the above technical solution: the automatic lifting mechanism includes a fixed shell, and the fixed shell is fixedly connected to the temperature control cylinder, the fixed shell is slidingly provided with a plug-in column at one end away from the micro motor, the rotating shaft is movably provided on the outside of the plug-in column, the plug-in column is fixedly connected to a connecting plate at one end away from the micro motor, and the airbag is bonded to the end of the connecting plate away from the plug-in column.

[0007] As a further description of the above technical solution: the automatic amplitude modulation mechanism includes a vibration plate, the vibration plate is located outside the fixed shell, the end of the vibration plate away from the airbag is movably set at the bottom end of the temperature control cylinder, the end of the vibration plate close to the fixed shell is fixedly connected with an insertion strip, and an extrusion column is slidably arranged on the vibration plate, the insertion strip is movably inserted into the connecting plate, the end of the insertion strip located in the connecting plate is fixedly connected to a spring 1 between the connecting plate, one end of the extrusion column is inserted into the fixed shell, the end of the extrusion column located in the inner cavity of the fixed shell is provided with an inclined surface, a conduit is provided in the insertion strip, and the conduit One end is communicated with the inner cavity of the airbag, and the other end of the catheter is communicated with the inner cavity of the rotating shaft. A fixed plate is fixedly connected to the side of the inner cavity of the rotating shaft close to the catheter, and a slide is slidably provided on the side of the fixed plate away from the catheter. An insertion rod is fixed to one end of the slide away from the fixed plate. An air guide groove is provided in the rotating shaft, and the insertion rod is movably inserted in the air guide groove. A limiting slide bar is provided on one side of the air guide groove, and the limiting slide bar is slidably set in the rotating shaft. A spring 2 is fixed between the end of the limiting slide bar close to the air guide groove and the rotating shaft, and a one-way air valve and a solenoid valve are provided on the fixed plate.

[0008] As a further description of the above technical solution: the automatic frequency regulation mechanism includes a connecting plate slidably set on the limiting slide rod, and a fan-shaped block is fixedly connected to the end of the connecting plate away from the limiting slide rod. A guide groove is opened in the rotating shaft on the bottom side of the connecting plate, and a guide column is slidably set in the guide groove, and the guide column is fixed to the connecting plate.

[0009] As a further description of the above technical solution: a temperature control module is provided in the shell, and the temperature control cylinder is connected to the temperature control module.

[0010] As a further description of the above technical solution: the vibration plate is located at the lower side of the airbag.

[0011] As a further description of the above technical solution: a plurality of vibration plates are provided at equal intervals.

[0012] As a further description of the above technical solution: when the limiting sliding rod slides toward the extrusion column, the end of the sector block with a smaller area moves toward the extrusion column.

[0013] The present invention provides a temperature-controlled and homogenized integrated device for a vibration spectrometer through improvements. Compared with the prior art, the present invention has the following improvements and advantages: Firstly, the airbag can automatically identify the liquid level when water is injected, ensuring that the vibration plate is below the liquid level, allowing the vibration to be in the liquid, preventing the liquid from splashing during vibration, and thus ensuring the uniformity of the liquid during detection. Second, when vibrating, the gas in the airbag will enter the inner cavity of the rotating shaft through the tube. For liquids with higher viscosity, it can automatically achieve full homogenization of the sample, reducing the vibration frequency, allowing high-viscosity samples time to fully respond to large-amplitude motion. Conversely, for liquids with lower viscosity, the amplitude will automatically decrease and the vibration frequency will increase to reduce sample volatilization while ensuring sample homogeneity. To sum up, through the setting of the airbag, when water is injected, the liquid level position can be automatically identified, which can ensure that the vibration plate is below the liquid level, so that the vibration is in the liquid to prevent the liquid from splashing during vibration, thereby ensuring the uniformity of the liquid during detection. When vibrating, the gas in the airbag will enter the inner cavity of the rotating shaft through the catheter. Liquids with higher viscosity can automatically achieve full homogenization of the sample, reduce the vibration frequency, and allow high-viscosity samples to have time to fully respond to large-amplitude movements. On the contrary, liquids with low viscosity will automatically reduce the amplitude and increase the vibration frequency to reduce sample volatilization while ensuring the homogeneity of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further explained below in conjunction with the accompanying drawings and examples: Figure 1 A schematic structural diagram of a temperature-controlled and homogenized integrated device for a vibration spectrometer provided in an embodiment of the present invention; Figure 2 A schematic structural diagram of a temperature control cylinder provided in an embodiment of the present invention; Figure 3 A schematic structural diagram of an airbag provided in an embodiment of the present invention; Figure 4 A three-dimensional cross-sectional view of a fixed housing provided in an embodiment of the present invention; Figure 5 A three-dimensional cross-sectional view of a rotating shaft provided in an embodiment of the present invention; Figure 6 A schematic structural diagram of a position-limiting slide bar provided in an embodiment of the present invention; Figure 7 A schematic structural diagram of a guide groove provided in an embodiment of the present invention; Figure 8 for Figure 4 Enlarged view of point A in the middle; Figure 9 for Figure 5 Enlarged view of point B in the middle.

[0015] In the figure: 1. Shell; 2. Touch screen; 3. Placement slot; 4. Temperature control cylinder; 5. Automatic lifting mechanism; 51. Air bag; 52. Fixed shell; 53. Connecting plate; 54. Insertion column; 6. Micro motor; 7. Automatic amplitude modulation mechanism; 71. Vibrating plate; 72. Insertion strip; 73. Spring 1; 74. Extrusion column; 75. Inclined surface; 76. Conduit; 77. Fixed plate; 78. Slide plate; 79. Insertion rod; 710. Air guide groove; 711. Spring 2; 712. Limiting slide bar; 713. One-way air valve; 714. Solenoid valve; 8. Automatic frequency modulation mechanism; 81. Fan-shaped block; 82. Connecting plate; 83. Guide column; 84. Guide groove; 9. Rotating shaft. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below with reference to specific diagrams. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless they conflict.

[0017] See also Figure 1 - Figure 9 The embodiment of the present invention provides a technical solution: a temperature control and homogenization integrated device for a vibration spectrometer, comprising a housing 1 and a touch screen 2 arranged on the upper surface of the housing 1, a placement groove 3 being provided on the upper surface of the housing 1, a temperature control cylinder 4 being fixedly connected in the placement groove 3, a rotating shaft 9 being rotatably provided in the temperature control cylinder 4, a micro motor 6 being fixedly connected at one end of the rotating shaft 9, and further comprising: The automatic lifting mechanism 5 can automatically identify the height of the liquid level, and the automatic lifting mechanism 5 is arranged in the inner cavity of the temperature control cylinder 4; An automatic amplitude modulation mechanism 7, capable of automatically adjusting the amplitude according to the viscosity of the liquid, and the automatic amplitude modulation mechanism 7 is arranged in the automatic lifting mechanism 5; And the automatic frequency modulation mechanism 8 can automatically adjust the frequency according to the viscosity of the liquid. The automatic frequency modulation mechanism 8 is arranged in the automatic lifting mechanism 5.

[0018] A temperature control module is provided in the housing 1 , and the temperature control cylinder 4 is connected to the temperature control module.

[0019] Specifically, through the setting of the airbag 51, when water is injected, the liquid level position can be automatically identified, and the vibration plate 71 can be ensured to be below the liquid level, so that the vibration is in the liquid to prevent the liquid from splashing during vibration, thereby ensuring the uniformity of the liquid during detection. When vibrating, the gas in the airbag 51 will enter the inner cavity of the rotating shaft 9 through the conduit 76. Liquids with higher viscosity can automatically achieve full homogenization of the sample, reduce the vibration frequency, and allow high-viscosity samples to have time to fully respond to large-amplitude movements. On the contrary, liquids with low viscosity automatically reduce the amplitude and increase the vibration frequency to reduce sample volatilization while ensuring the homogeneity of the sample.

[0020] In another embodiment provided by the present invention, the automatic lifting mechanism 5 includes a fixed shell 52, and the fixed shell 52 is fixedly connected to the temperature control cylinder 4, and a plug-in column 54 is slidingly provided at one end of the fixed shell 52 away from the micro motor 6, and the rotating shaft 9 is movably provided on the outside of the plug-in column 54, and a connecting plate 53 is fixedly connected to one end of the plug-in column 54 away from the micro motor 6, and an airbag 51 is bonded to one end of the connecting plate 53 away from the plug-in column 54.

[0021] Specifically, through the setting of the airbag 51, when water is injected, the liquid level position can be automatically identified, and the vibration plate 71 can be ensured to be below the liquid level, so that the vibration can be in the liquid to prevent the liquid from splashing during vibration, thereby ensuring the uniformity of the liquid during detection.

[0022] In another embodiment provided by the present invention, the automatic amplitude modulation mechanism 7 includes a vibration plate 71, the vibration plate 71 is located outside the fixed shell 52, the end of the vibration plate 71 away from the airbag 51 is movably set at the bottom end of the temperature control cylinder 4, the end of the vibration plate 71 close to the fixed shell 52 is fixedly connected to a plug 72, and an extrusion column 74 is slidably provided on the vibration plate 71, the plug 72 is movably inserted into the connecting plate 53, the end of the plug 72 located in the connecting plate 53 is fixedly connected to a spring 73 between the connecting plate 53, one end of the extrusion column 74 is inserted into the fixed shell 52, and the end of the extrusion column 74 located in the inner cavity of the fixed shell 52 is provided with an inclined surface 75, a guide tube 76 is provided in the plug column 54, and one end of the guide tube 76 is connected to the airbag 51 is connected, and the other end of the conduit 76 is connected to the inner cavity of the rotating shaft 9. A fixed plate 77 is fixedly connected to the side of the inner cavity of the rotating shaft 9 close to the conduit 76. A slide plate 78 is slidably provided on the side of the fixed plate 77 away from the conduit 76. An insertion rod 79 is fixedly connected to the end of the slide plate 78 away from the fixed plate 77. An air guide groove 710 is provided in the rotating shaft 9, and the insertion rod 79 is movably inserted in the air guide groove 710. A limiting slide bar 712 is provided on one side of the air guide groove 710. The limiting slide bar 712 is slidably set in the rotating shaft 9. A spring 2 711 is fixedly connected between the end of the limiting slide bar 712 close to the air guide groove 710 and the rotating shaft 9. A one-way air valve 713 and a solenoid valve 714 are provided on the fixed plate 77.

[0023] The vibration plate 71 is located below the airbag 51 .

[0024] A plurality of vibration plates 71 are provided at equal intervals.

[0025] In another embodiment provided by the present invention, the automatic frequency regulation mechanism 8 includes a connecting plate 82 slidably set on the limiting slide 712, and a fan-shaped block 81 is fixedly connected to one end of the connecting plate 82 away from the limiting slide 712. A guide groove 84 is provided in the bottom side of the connecting plate 82 located in the rotating shaft 9, and a guide column 83 is slidably set in the guide groove 84, and the guide column 83 is fixedly connected to the connecting plate 82.

[0026] When the limiting sliding rod 712 slides toward the extrusion column 74 , the end of the sector block 81 with a smaller area moves toward the extrusion column 74 .

[0027] Specifically, when vibrating, the gas in the airbag 51 will enter the inner cavity of the rotating shaft 9 through the conduit 76. The liquid with higher viscosity can automatically achieve full homogenization of the sample, reduce the vibration frequency, and allow high-viscosity samples to have time to fully respond to large-amplitude movement. Conversely, the liquid with low viscosity will automatically reduce the amplitude and increase the vibration frequency to reduce sample volatilization while ensuring the homogeneity of the sample.

[0028] Working principle: When using the device, place the housing 1 horizontally with the touch screen 2 facing upwards, and place the liquid to be tested into the inner cavity of the temperature control cylinder 4. After the liquid is injected, the airbag 51 will float upward with the liquid, thereby allowing the vibration plate 71 to float upward with the airbag 51. The height of the vibration plate 71 is lower than that of the airbag 51, so that the vibration plate 71 is below the liquid level. The liquid level position can be automatically identified. Under the premise that most of the vibration plate 71 is in the liquid, it can ensure that the vibration plate 71 is below the liquid level, so that the vibration is in the liquid, preventing the liquid from splashing during vibration, thereby ensuring the uniformity of the liquid during detection; Since the vibration plate 71 has weight, the bottom part of the airbag 51 can be located in the liquid. When the micro motor 6 is started, the fan-shaped block 81 will periodically squeeze the inclined surface 75, so that the squeezing column 74 drives the vibration plate 71 to vibrate back and forth. During vibration, the liquid will squeeze the airbag 51. If the viscosity of the liquid is large, the liquid will squeeze the airbag 51 even more. The gas in the airbag 51 will enter the inner cavity of the rotating shaft 9 through the conduit 76. The setting of the one-way air valve 713 can make the gas move toward the slide plate 78. The slide plate 78 and the insertion rod 79 move toward the limit slide 712, so that the limit slide 712 moves toward the connecting plate 82. The connecting plate 82 and the fan-shaped block 81 will move toward the outside of the rotating shaft 9, so that the fan-shaped block 81 can increase the amplitude of the squeezing column 74 outward, thereby automatically identifying the liquid with high viscosity and automatically increasing the amplitude. When the sector block 81 moves toward the outside of the rotating shaft 9, under the cooperation of the guide column 83 and the guide groove 84, the sector block 81 and the connecting plate 82 will move along the length direction of the rotating shaft 9, and the end of the sector block 81 with a smaller area will be closer to the extrusion column 74, so that the time during which the sector block 81 squeezes the extrusion column 74 each time can be increased, thereby reducing the automatic vibration frequency, and there is no need to manually change the rotation speed of the micro motor 6, which is faster and more convenient; For liquids with higher viscosity, the sample can be fully homogenized automatically, which reduces the vibration frequency and allows the high-viscosity sample time to fully respond to the large-amplitude movement. Conversely, for liquids with lower viscosity, the amplitude is reduced and the vibration frequency is increased to reduce sample volatilization while ensuring sample homogeneity. After completion, the solenoid valve 714 is opened to allow the gas to automatically flow back into the airbag 51.

[0029] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature control and homogenization integrated device for a vibration spectrometer, comprising a housing (1) and a touch screen (2) arranged on the upper surface of the housing (1), wherein a placement groove (3) is provided on the upper surface of the housing (1), a temperature control cylinder (4) is fixedly connected in the placement groove (3), a rotating shaft (9) is rotatably arranged in the temperature control cylinder (4), and a micro motor (6) is fixedly connected to one end of the rotating shaft (9), characterized in that: Also includes: An automatic lifting mechanism (5) capable of automatically identifying the height of the liquid level, wherein the automatic lifting mechanism (5) is arranged in the inner cavity of the temperature control cylinder (4); An automatic amplitude modulation mechanism (7) capable of automatically adjusting the amplitude according to the viscosity of the liquid, wherein the automatic amplitude modulation mechanism (7) is arranged in the automatic lifting mechanism (5); And an automatic frequency modulation mechanism (8) capable of automatically adjusting the frequency according to the viscosity of the liquid, wherein the automatic frequency modulation mechanism (8) is arranged in the automatic lifting mechanism (5).

2. The temperature control and homogenization integrated device for a vibration spectrometer according to claim 1, characterized in that: The automatic lifting mechanism (5) includes a fixed shell (52), and the fixed shell (52) is fixedly connected to the temperature control cylinder (4). The fixed shell (52) is slidably provided with a plug post (54) at one end away from the micro motor (6). The rotating shaft (9) is movably provided on the outside of the plug post (54). The plug post (54) is fixedly connected to a connecting plate (53) at one end away from the micro motor (6), and the connecting plate (53) is bonded to an air bag (51) at one end away from the plug post (54).

3. The temperature control and homogenization integrated device for a vibration spectrometer according to claim 2, characterized in that: The automatic amplitude modulation mechanism (7) includes a vibration plate (71), the vibration plate (71) is located outside the fixed shell (52), the end of the vibration plate (71) away from the airbag (51) is movably arranged at the bottom end of the temperature control cylinder (4), the end of the vibration plate (71) close to the fixed shell (52) is fixedly connected with an insertion strip (72), and an extrusion column (74) is slidably arranged on the vibration plate (71), the insertion strip (72) is movably inserted into the connecting plate (53), the end of the insertion strip (72) located in the connecting plate (53) and the connecting plate (53) are fixedly connected with a spring (73), one end of the extrusion column (74) is inserted into the fixed shell (52), and the end of the extrusion column (74) located in the inner cavity of the fixed shell (52) is provided with an inclined surface (75), a guide tube (76) is provided in the insertion column (54), and one end of the guide tube (76) is communicated with the inner cavity of the airbag (51) The other end of the conduit (76) is communicated with the inner cavity of the rotating shaft (9), and a fixed plate (77) is fixedly connected to the side of the inner cavity of the rotating shaft (9) close to the conduit (76). A slide plate (78) is slidably provided on the side of the fixed plate (77) away from the conduit (76), and an insertion rod (79) is fixedly connected to the end of the slide plate (78) away from the fixed plate (77). An air guide groove (710) is provided in the rotating shaft (9), and the insertion rod (79) is movably inserted in the air guide groove (710). A limiting slide bar (712) is provided on one side of the air guide groove (710), and the limiting slide bar (712) is slidably provided in the rotating shaft (9). A spring 2 (711) is fixedly connected between the end of the limiting slide bar (712) close to the air guide groove (710) and the rotating shaft (9), and a one-way air valve (713) and a solenoid valve (714) are provided on the fixed plate (77).

4. The temperature control and homogenization integrated device for a vibration spectrometer according to claim 3, characterized in that: The automatic frequency modulation mechanism (8) includes a connecting plate (82) slidably arranged on the limiting slide bar (712), a fan-shaped block (81) is fixedly connected to one end of the connecting plate (82) away from the limiting slide bar (712), a guide groove (84) is provided on the bottom side of the connecting plate (82) in the rotating shaft (9), a guide column (83) is slidably arranged in the guide groove (84), and the guide column (83) is fixedly connected to the connecting plate (82).

5. The temperature control and homogenization integrated device for a vibration spectrometer according to claim 1, characterized in that: A temperature control module is provided in the housing (1), and the temperature control cylinder (4) is connected to the temperature control module.

6. The temperature control and homogenization integrated device for a vibration spectrometer according to claim 3, characterized in that: The vibration plate (71) is located on the lower side of the airbag (51).

7. The temperature control and homogenization integrated device for a vibration spectrometer according to claim 3, characterized in that: A plurality of vibration plates (71) are provided at equal intervals.

8. The temperature control and homogenization integrated device for a vibration spectrometer according to claim 4, characterized in that: When the limiting sliding rod (712) slides toward the extrusion column (74), the end of the sector block (81) with a smaller area moves toward the extrusion column (74).