Spectrum sampling device

Abstract

The utility model relates to the field of spectrum detection, in particular to a spectrum sampling device which comprises a box body, a sampling cavity is arranged at the top of the box body, a spectrum probe is arranged at the lower end of the sampling cavity, and a sample assembly is arranged in the sampling cavity; the sample assembly comprises a material plate, a placement cavity is formed in the middle of the material plate, an annular shell and a sample plate are arranged in the placement cavity, a mounting groove is formed in an annular partition plate, a stand column is rotationally arranged in the mounting groove, a horizontal scraper plate parallel to the sample plate is arranged on one side of the stand column, and the horizontal scraper plate is arranged above the sample plate and the annular shell at intervals; an annular cavity communicated with the placing cavity is formed in the material plate, and the annular cavity and the horizontal scraping plate are arranged at the same height, so that the problems that when an infrared spectrometer is used for spectrum sampling, a sample needs to be placed on a sample plate, then the sample is manually tiled on the sample plate, the thickness of the sample is not uniform in the tiling process, and the sampling time is shortened are solved. The sample detection accuracy is not high, and the detection accuracy needs to be improved through multiple times of detection.

Description

Technical Field

[0001] The utility model relates to the field of spectrum detection, in particular to a spectrum sampling device. Background Art

[0002] Infrared spectrometers are usually composed of a light source, a monochromator, a detector, and a computer information processing system. According to the different spectroscopic devices, they are divided into dispersion type and interference type. They can be used for milk powder analysis and detection. For the dispersion type double-light path optical zero balance infrared spectrophotometer, when the sample absorbs infrared radiation of a certain frequency, the vibration energy level of the molecule will transition, and the light of the corresponding frequency in the transmitted light beam will be weakened, resulting in the intensity difference of the corresponding radiation of the reference light path and the sample light path, thereby obtaining the infrared spectrum of the measured sample.

[0003] When using an infrared spectrometer for spectral sampling, the sample needs to be placed on a sample plate and then manually spread on the sample plate. During the spreading process, the sample thickness is uneven, resulting in low sample detection accuracy, and multiple tests are required to improve detection accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide a spectral sampling device to solve the problem that when using an infrared spectrometer for spectral sampling, the sample needs to be placed on a sample plate and then manually spread on the sample plate. During the spreading process, the sample thickness is uneven, resulting in low sample detection accuracy and the need for multiple tests to improve the detection accuracy.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A spectral sampling device comprises a box, a sampling cavity is arranged on the top of the box, a spectral probe is arranged at the lower end of the sampling cavity, and a sample assembly is arranged in the sampling cavity;

[0007] The sample assembly includes a material plate, a placement cavity which is transparent and communicates with the sampling cavity is provided in the middle of the material plate, an annular shell and a sample plate arranged in the annular shell are provided in the placement cavity, and the bottom of the circumferential outer wall of the annular shell is connected to the inner wall of the placement cavity through an annular partition, and a temporary storage cavity is formed between the inner wall of the placement cavity, the annular partition and the annular shell;

[0008] The annular partition is provided with two symmetrically arranged mounting grooves, a column is rotatably arranged in the mounting groove, a horizontal scraper arranged parallel to the sample plate is arranged on one side of the column, and the horizontal scraper is arranged above the sample plate and the annular shell at intervals;

[0009] An annular cavity communicating with the placement cavity is provided in the material plate, and the annular cavity is arranged at the same height as the horizontal scraper.

[0010] A further technical solution is that the length of the horizontal scraper is three quarters of the diameter of the sample plate.

[0011] A further technical solution is that the horizontal scraper includes a plate body and an arc-shaped plate arranged at the lower end of the plate body, and concave arc-shaped scraping surfaces are provided on both sides of the arc-shaped plate.

[0012] A further technical solution is that a horizontal plate is arranged on the top of the box body, the sampling cavity is arranged in the middle of the horizontal plate, the inner wall of the sampling cavity is provided with an annular baffle, the annular shell is arranged on the annular baffle, and the inner diameter of the annular baffle is larger than the inner diameter of the annular shell and smaller than the outer diameter of the annular shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When testing the sample, the sample is placed on the sample plate, and then the column is placed in a mounting groove, and the horizontal scraper is moved on the sample plate by rotating the column, and then the column is placed in another mounting groove and rotated to move the horizontal scraper on the other side of the sample plate. The sample is laid flat on the sample plate by the movement of the horizontal scraper, and the spectrum probe detects the laid sample to improve the accuracy of sample spectrum detection. In the process of laying the sample flat by the horizontal scraper, the excess sample is scraped into the temporary storage cavity for temporary storage, and the horizontal scraper will partially slide into the annular cavity set at the same height as the horizontal scraper during the movement, thereby avoiding the placement cavity blocking the horizontal scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic structural diagram of a spectrum sampling device.

[0016] Figure 2 for Figure 1 A partial enlarged schematic diagram in the middle.

[0017] Figure 3 It is a structural schematic diagram of the horizontal scraper in the utility model.

[0018] Figure 4 It is a schematic diagram of the connection between the horizontal plate and the box body in the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] Example:

[0021] Figure 1-2 A preferred embodiment of a spectrum sampling device of the utility model is shown. A spectrum sampling device in this embodiment specifically comprises a box body 1, a sampling cavity 2 is provided on the top of the box body 1, a spectrum probe 3 is provided at the lower end of the sampling cavity 2, and a sample assembly is provided in the sampling cavity 2;

[0022] The sample assembly includes a material plate 4, a placement cavity which is transparent and communicated with the sampling cavity 2 is provided in the middle of the material plate 4, an annular shell 5 and a sample plate 6 arranged in the annular shell 5 are provided in the placement cavity, and the bottom of the circumferential outer wall of the annular shell 5 is connected to the inner wall of the placement cavity through an annular partition 7, and a temporary storage cavity is formed between the inner wall of the placement cavity, the annular partition 7 and the annular shell 5;

[0023] The annular partition plate 7 is provided with two symmetrically arranged mounting grooves 8, a column 9 is rotatably arranged in the mounting groove 8, a horizontal scraper 10 arranged parallel to the sample plate 6 is arranged on one side of the column 9, and the horizontal scraper 10 is arranged above the sample plate 6 and the annular shell 5 at intervals;

[0024] An annular cavity 11 communicating with the placement cavity is disposed in the material plate 4 , and the annular cavity 11 is disposed at the same height as the horizontal scraper 10 .

[0025] In the utility model, when testing the sample, the sample is placed on the sample plate 6, and then the column 9 is placed in a mounting groove 8, and the horizontal scraper 10 is moved on the sample plate 6 by rotating the column 9, and then the column 9 is placed in another mounting groove 8 and the column 9 is rotated to move the horizontal scraper 10 on the other side of the sample plate 6. The sample is laid flat on the sample plate 6 by the movement of the horizontal scraper 10, and the spectrum probe 3 detects the laid sample to facilitate improving the accuracy of the sample spectrum detection. In the process of laying the sample flat by the horizontal scraper 10, the excess sample is scraped into the temporary storage cavity for temporary storage, and the horizontal scraper 10 will partially slide into the annular cavity 11 set at the same height as the horizontal scraper 10 during the movement, thereby avoiding the placement cavity from blocking the horizontal scraper 10.

[0026] The length of the horizontal scraper 10 is three quarters of the diameter of the sample plate 6 , so that when the horizontal scraper 10 rotates in the two mounting grooves 8 , the horizontal scraper 10 can cover the entire sample plate 6 , ensuring that the sample is laid flat on the sample plate 6 .

[0027] The horizontal scraper 10 includes a plate body 12 and an arc-shaped plate 13 arranged at the lower end of the plate body 12, and concave arc-shaped scraping surfaces 14 are provided on both sides of the arc-shaped plate 13. By providing concave arc-shaped scraping surfaces 14 on both sides of the arc-shaped plate 13, the entire horizontal scraper 10 can remove excess samples through the arc-shaped scraping surfaces 14 during the process of forward and reverse translation.

[0028] A horizontal plate 15 is arranged on the top of the box body 1, the sampling cavity 2 is arranged in the middle of the horizontal plate 15, an annular baffle 16 is arranged on the inner wall of the sampling cavity 2, the annular shell 5 is arranged on the annular baffle 16, the inner diameter of the annular baffle 16 is larger than the inner diameter of the annular shell 5 and smaller than the outer diameter of the annular shell 5, when installing the whole sample assembly, it is only necessary to place the annular shell 5 on the annular baffle 16, the inner diameter of the annular baffle 16 is larger than the inner diameter of the annular shell 5 and smaller than the outer diameter of the annular shell 5, so that the annular baffle 16 will not block the spectrum probe 3.

[0029] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A spectrum sampling device, characterized in that: It comprises a box body, a sampling cavity is arranged on the top of the box body, a spectrum probe is arranged on the lower end of the sampling cavity, and a sample assembly is arranged in the sampling cavity; The sample assembly includes a material plate, a placement cavity which is transparent and communicates with the sampling cavity is provided in the middle of the material plate, an annular shell and a sample plate arranged in the annular shell are provided in the placement cavity, and the bottom of the circumferential outer wall of the annular shell is connected to the inner wall of the placement cavity through an annular partition, and a temporary storage cavity is formed between the inner wall of the placement cavity, the annular partition and the annular shell; The annular partition is provided with two symmetrically arranged mounting grooves, a column is rotatably arranged in the mounting groove, a horizontal scraper arranged parallel to the sample plate is arranged on one side of the column, and the horizontal scraper is arranged above the sample plate and the annular shell at intervals; An annular cavity communicating with the placement cavity is provided in the material plate, and the annular cavity is arranged at the same height as the horizontal scraper.

2. A spectrum sampling device according to claim 1, characterized in that: The length of the horizontal scraper is three quarters of the diameter of the sample plate.

3. A spectrum sampling device according to claim 1, characterized in that: The horizontal scraper comprises a plate body and an arc-shaped plate arranged at the lower end of the plate body, and both sides of the arc-shaped plate are provided with concave arc-shaped scraping surfaces.

4. A spectrum sampling device according to claim 1, characterized in that: A horizontal plate is arranged on the top of the box body, the sampling cavity is arranged in the middle of the horizontal plate, an annular baffle is arranged on the inner wall of the sampling cavity, the annular shell is arranged on the annular baffle, and the inner diameter of the annular baffle is larger than the inner diameter of the annular shell and smaller than the outer diameter of the annular shell.

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