A sample stage for an x-ray diffractometer

Abstract

The present application relates to the technical field of agricultural processing, in particular to a sample table for X-ray diffractometer, which comprises a sample disc, a sample containing groove and a supporting sliding block, a circular sample containing groove is arranged in the middle of the sample disc, and the supporting sliding block is arranged in the sample containing groove, the present application has the beneficial effects that: the sample containing groove is arranged on the supporting sliding block, the supporting sliding block is arranged in the sample containing groove, the position in the sample containing groove can be adjusted through the supporting sliding block, the sample containing groove is combined with the scale layer arranged on the mirror surface of the sample containing groove, the sample containing groove with adjustable depth can be conveniently observed, the technical problem that the nature of the measured substance needs different thickness for convenient measurement of the true value is solved, the present application has the advantages of simple structure, convenient operation, ingenious design, greatly improved work efficiency, good social and economic benefits, and is a product easy to popularize and use.

Description

Technical Field

[0001] This invention relates to the field of sample storage technology for X-ray diffractometers, specifically a sample stage for X-ray diffractometers. Background Technology

[0002] X-ray diffraction (XRD) is an important tool for analyzing material structures, playing a vital role in metallurgy, chemical engineering, materials synthesis, and pharmaceuticals. An XRD instrument is a primary instrument that utilizes the principle of diffraction to study the microstructure of crystalline materials and some amorphous materials.

[0003] In practical work, powdered samples are commonly used in X-ray diffractometers. The thickness of the powdered sample varies depending on the properties of the sample. When spreading the sample, it is usually necessary to compact it to ensure a uniform thickness, which facilitates the determination of the true value of the sample data. In existing technologies, the sample stage used to hold the sample is typically a fixed trough structure. After the sample is spread, it usually needs to be leveled to form a regular-shaped block structure. Since some samples are difficult to prepare and often do not fill the trough completely, this makes it extremely difficult to reshape the compacted sample. Furthermore, because some samples are too small, existing technologies lack corresponding indicating tools, making it difficult to determine whether the thickness of the sample is within the accurately measurable range. Therefore, there are technical defects. The operation requires too much subjective experience from the operator, resulting in significant human error and low data reproducibility. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a sample stage for an X-ray diffractometer that can adjust the depth of the measurement area for powdered samples and has a depth marking for the measurement area, thereby overcoming the deficiencies in the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a sample stage for an X-ray diffractometer, comprising a sample tray, a sample holding groove and a support slider, wherein a circular sample holding groove is provided in the middle of the sample tray, and a support slider is provided in the sample holding groove.

[0006] The inner wall of the sample holding tank includes a mirror surface and an internal thread. The internal thread is provided at the bottom of the inner wall of the sample holding tank, and the external thread is provided on the side of the supporting slider. The internal thread and the external thread cooperate with each other. The mirror surface is located above the inner wall of the sample holding tank, and a scale layer is provided on the mirror surface. The scale layer extends towards the top of the sample holding tank along the direction away from the internal thread.

[0007] A further technical improvement of the present invention is that the shape of the supporting slider is adapted to the shape of the sample holding groove, and the cross-section of the upper end of the sample plate is a circular ring structure.

[0008] A further technical improvement of the present invention is that the top of the support slider is provided with several convex rings in a circular structure.

[0009] A further technical improvement of the present invention is that: a convex ring groove is provided on the top of the support slider, the convex ring is movably fitted on the convex ring groove, a drive plate is provided below the support slider, and both the drive plate and the support slider are fitted with external threaded tubes, the external threaded tubes are threadedly connected to the drive plate, the drive plate and the convex ring are fixed by a convex ring connecting rod, and the convex ring connecting rod is movably fitted on the support slider.

[0010] A further technical improvement of the present invention is that the diameter of the plurality of convex rings gradually increases, and the central axis of the plurality of convex rings and the central axis of the supporting slider are on the same axis.

[0011] A further technical improvement of the present invention is that: a limiting ring is fitted on the support slider on the outside of the external threaded tube, the inner wall of the limiting ring is fixedly connected to the outer wall of the external threaded tube, the limiting ring is a ring structure, and a first driving handle is provided on the external threaded tube below the driving plate.

[0012] A further technical improvement of the present invention is that: the number of convex ring connecting rods is several, and the several convex ring connecting rods are evenly distributed in a star shape on the outer side of the central axis of the supporting slider.

[0013] A further technical improvement of the present invention is that: a drive rod is provided on the support slider inside the external threaded tube, a second drive handle is fixedly provided on the drive rod below the external threaded tube, and an anti-slip groove is provided in the middle of the sample tray.

[0014] The beneficial effects of this invention are as follows: First, by setting a sample holding groove on the support slider and setting a support slider inside the sample holding groove, the present invention enables the adjustment of the position of the support slider within the sample holding groove. Combined with the scale layer set on the mirror surface of the sample holding groove, the present invention realizes the sample measurement groove with adjustable depth that is convenient for visual observation, thus solving the technical problem that different properties of the measured substances require different thicknesses to facilitate the determination of the true value.

[0015] Secondly, a first drive handle is provided on the externally threaded tube below the drive plate of the present invention. Installing the first drive handle facilitates the operator in driving the externally threaded tube and thus adjusting the position of the convex ring.

[0016] Finally, the second drive handle and the support slider of the present invention are fixedly connected by a drive rod. After the first drive handle is installed, it is convenient for the staff to adjust the position of the support slider in the sample holding slot by turning the second drive handle.

[0017] This invention features a simple structure, convenient operation, and ingenious design, which greatly improves work efficiency and has significant social and economic benefits. It is a product that is easy to promote and use. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the supporting slider of the present invention.

[0022] Figure 4 This is a bottom view of the supporting slider of the present invention.

[0023] Figure 5 This is a cross-sectional structural diagram of the support slider of the present invention.

[0024] Figure 6 for Figure 5 A magnified view of detail A.

[0025] Figure 7 for Figure 5 A magnified view of detail B.

[0026] In the figure: 1. Sample tray; 2. Sample holding slot; 3. Support slider; 4. Scale layer; 5. Convex ring; 6. Convex ring groove; 7. Drive plate; 8. External threaded tube; 9. Convex ring connecting rod; 10. Limiting ring; 11. First drive handle; 12. Drive rod; 13. Second drive handle; 14. Anti-slip groove. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] like Figures 1-7 As shown, the sample stage for an X-ray diffractometer according to the present invention includes a sample tray 1, a sample holding groove 2 and a support slider 3. The sample tray 1 has a circular sample holding groove 2 in the middle, and the support slider 3 is provided in the sample holding groove 2.

[0029] The inner wall of the sample holding tank 2 includes a mirror surface and an internal thread. The inner thread is provided at the bottom of the inner wall of the sample holding tank 2, and the side of the supporting slider 3 is provided with an external thread. The internal thread and the external thread cooperate with each other. The mirror surface is located above the inner wall of the sample holding tank 2, and a scale layer 4 is provided on the mirror surface. The scale layer 4 extends towards the top of the sample holding tank 2 away from the internal thread.

[0030] In one optional embodiment of the present invention, the shape of the support slider 3 is adapted to the shape of the sample holding groove 2, and the cross-section of the upper end of the sample tray 1 is a circular structure.

[0031] In one optional embodiment of the present invention, the top of the support slider 3 is provided with a plurality of convex rings 5 ​​in a circular structure, and there is a gap between any two adjacent convex rings 5, and the gaps are all equal.

[0032] In an optional embodiment of the present invention, the top of the support slider 3 is provided with a convex ring groove 6, and the convex ring 5 is movably fitted on the convex ring groove 6. The top surface of the support slider 3 is provided with a convex ring groove 6, and the number of convex ring grooves 6 corresponds to the number of convex rings 5. Each convex ring 5 is movably fitted on a corresponding convex ring groove 6. A drive plate 7 is provided below the support slider 3. Both the drive plate 7 and the support slider 3 are fitted with external threaded tubes 8. The external threaded tubes 8 and the drive plate 7 are threadedly connected. The drive plate 7 and the convex rings 5 ​​are fixed by convex ring connecting rods 9, and the convex ring connecting rods 9 are movably fitted on the support slider 3.

[0033] In one optional embodiment of the present invention, the diameter of a plurality of convex rings 5 ​​gradually increases, and the central axis of the plurality of convex rings 5 ​​and the central axis of the supporting slider 3 are on the same axis.

[0034] In one optional embodiment of the present invention, a limiting ring 10 is fitted on the support slider 3 on the outer side of the external threaded tube 8. The inner wall of the limiting ring 10 is fixedly connected to the outer wall of the external threaded tube 8. The limiting ring 10 has a ring structure. A first driving handle 11 is provided on the external threaded tube 8 below the driving plate 7. After the first driving handle 11 is installed, it is convenient for the staff to drive the external threaded tube 8.

[0035] In one optional embodiment of the present invention, the number of convex ring connecting rods 9 is several, and the several convex ring connecting rods 9 are evenly distributed in a star shape on the outer side of the central axis of the supporting slider 3.

[0036] A convex ring 5 is installed on the support slider 3 to facilitate the dispersion and spread of the sample on the top surface of the support slider 3. After the sample between the convex rings 5 ​​is compacted, the external threaded tube 8 is turned, which drives the drive plate 7 to move downward. The drive plate 7 drives the convex ring 5 towards the bottom of the convex ring groove 6 through the convex ring connecting rod 9. When the convex ring 5 moves to the bottom of the convex ring groove 6, the top surface of the convex ring 5 and the top surface of the support slider 3 are on the same plane. Then, the gap caused by the convex ring 5 descending is filled and compacted with the sample, avoiding the technical problem of low sample reproducibility caused by the sample bottom not being compacted due to the sample particles being too large.

[0037] A further technical improvement of the present invention is that: a drive rod 12 is provided on the support slider 3 inside the external threaded tube 8, and a second drive handle 13 is fixedly provided on the drive rod 12 below the external threaded tube 8; an anti-slip groove 14 is provided in the middle of the sample tray 1; after the first drive handle 11 is installed, it is convenient for the staff to rotate the drive rod 12 by turning the second drive handle 13, thereby ultimately rotating the support slider 3 and adjusting the distance between the top surface of the support slider 3 and the top surface of the support slider 3.

[0038] The method of using this invention is as follows: First, the operator adjusts the top surface of the support slider 3 to a preset position by turning the second drive handle 13, thus adjusting the depth of the sample measurement groove composed of part of the side wall of the sample holding groove 2 and the support slider 3. This depth is the minimum thickness of the sample that can be measured. Then, the operator lays the prepared sample on the top surface of the support slider 3 and compacts it. At this time, the top surface of the convex ring 5 is not smaller than the top surface of the compacted sample. Next, the operator turns the first drive handle 11, which in turn turns the external threaded tube 8. The external threaded tube 8 drives the drive plate 7 to move downwards, and the drive plate 7... The connecting rod 9 drives the convex ring 5 to move towards the bottom of the convex ring groove 6. When the convex ring 5 reaches the bottom of the convex ring groove 6, the top surface of the convex ring 5 and the top surface of the supporting slider 3 are on the same plane. The sample to be tested is then used to fill and compact the gap caused by the descent of the convex ring 5. Finally, the sample to be tested is gradually filled into the sample measuring groove. When the top surface of the compacted sample and the top surface of the sample plate 1 are on the same square meter, the sample filling is completed. At this point, the product can be installed in the area to be tested according to the operating specifications of the X-ray diffractometer, and the X-ray diffractometer equipment can be debugged and measured.

[0039] In this embodiment, by setting a sample holding groove 2 on the support slider 3 and setting the support slider 3 inside the sample holding groove 2, the support slider 3 can be adjusted to be positioned inside the sample holding groove 2. Combined with the scale layer 4 set on the mirror surface of the sample holding groove 2, the sample measurement groove with adjustable depth is realized for easy visual observation, making it convenient to observe whether the thickness of the substance being measured is within the thickness that can be accurately measured.

[0040] First, the present invention provides a sample holding groove on a support slider, and a support slider is set inside the sample holding groove. The support slider can be adjusted to be positioned inside the sample holding groove. Combined with the scale layer set on the mirror surface of the sample holding groove, the present invention realizes a sample measurement groove with adjustable depth that is easy to observe visually. This solves the technical problem that different properties of the tested substances require different thicknesses to facilitate the determination of the true value.

[0041] Secondly, a first drive handle is provided on the externally threaded tube below the drive plate of the present invention. Installing the first drive handle facilitates the operator in driving the externally threaded tube and thus adjusting the position of the convex ring.

[0042] Finally, the second drive handle and the support slider of the present invention are fixedly connected by a drive rod. After the first drive handle is installed, it is convenient for the staff to adjust the position of the support slider in the sample holding slot by turning the second drive handle.

[0043] This invention features a simple structure, convenient operation, and ingenious design, which greatly improves work efficiency and has significant social and economic benefits. It is a product that is easy to promote and use.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sample stage for an X-ray diffractometer, characterized in that: It includes a sample tray (1), a sample holding slot (2) and a support slider (3). The sample tray (1) has a circular sample holding slot (2) in the middle, and the support slider (3) is provided in the sample holding slot (2). The inner wall of the sample holding tank (2) includes a mirror surface and an internal thread. The inner thread is provided below the inner wall of the sample holding tank (2), and the side of the supporting slider (3) is provided with an external thread. The internal thread and the external thread cooperate with each other. The mirror surface is located above the inner wall of the sample holding tank (2), and a scale layer (4) is provided on the mirror surface. The scale layer (4) extends towards the top of the sample holding tank (2) away from the internal thread. The top of the support slider (3) is provided with several protruding rings (5) in a circular structure; The top of the support slider (3) is provided with a convex ring groove (6), and the convex ring (5) is movably fitted on the convex ring groove (6). A drive plate (7) is provided below the support slider (3). Both the drive plate (7) and the support slider (3) are fitted with external threaded tubes (8). The external threaded tubes (8) and the drive plate (7) are threaded together. The drive plate (7) and the convex ring (5) are fixed by a convex ring connecting rod (9), which is movably fitted on the support slider (3).

2. The sample stage for an X-ray diffractometer according to claim 1, characterized in that: The shape of the support slider (3) is adapted to the sample holding groove (2), and the cross-section of the upper end of the sample plate (1) is a circular ring structure.

3. A sample stage for an X-ray diffractometer according to claim 2, characterized in that: The diameter of several convex rings (5) gradually increases, and the central axis of several convex rings (5) and the central axis of the supporting slider (3) are on the same axis.

4. A sample stage for an X-ray diffractometer according to claim 3, characterized in that: A limiting ring (10) is fitted on the support slider (3) on the outside of the external threaded tube (8). The inner wall of the limiting ring (10) is fixedly connected to the outer wall of the external threaded tube (8). The limiting ring (10) is a ring structure. A first drive handle (11) is provided on the external threaded tube (8) below the drive plate (7).

5. A sample stage for an X-ray diffractometer according to claim 4, characterized in that: There are several convex ring connecting rods (9), and these convex ring connecting rods (9) are evenly distributed in a star shape on the outside of the central axis of the supporting slider (3).

6. A sample stage for an X-ray diffractometer according to claim 5, characterized in that: A drive rod (12) is provided on the support slider (3) inside the external threaded tube (8), and a second drive handle (13) is fixedly provided on the drive rod (12) below the external threaded tube (8). An anti-slip groove (14) is provided in the middle of the sample tray (1).

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