Laboratory total rock X-ray diffraction analysis sample preparation device

Abstract

The utility model belongs to the technical field of geological exploration, and discloses a laboratory total rock X-ray diffraction analysis sample preparation device which comprises a base, a sample preparation mold, a sample preparation assembly and a sample pressing assembly. The base is provided with an abutting surface, the sample preparation assembly comprises an adapter plate and an abutting block, the adapter plate is rotationally connected to the base, a sample preparation groove is formed in the surface of the adapter plate, a containing cavity communicated with the sample preparation groove is formed in the adapter plate, the abutting block is slidably arranged in the containing cavity, the sample pressing assembly comprises a sample pressing plate, and the sample pressing plate is aligned to the sample preparation groove. Firstly, a sample preparation mold is placed in a sample preparation groove, the sample preparation mold abuts against the inner wall of the sample preparation groove through an abutting block, and then sample powder is placed in the sample preparation mold; the sample pressing plate is pushed to compact sample powder in the sample preparation mold, and after an opening of the sample preparation mold is blocked by an adhesive tape, the adapter plate is turned over, so that a notch of the sample preparation groove abuts against the abutting face; and finally, the abutting block is separated from the sample preparation mold to complete sample preparation, the operation is simple and convenient, and the sample preparation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, in particular to a device for preparing samples for whole-rock X-ray diffraction analysis in a laboratory. Background Art

[0002] X-ray powder diffractometer is a commonly used analytical testing equipment in professional laboratories of chemistry, materials and other disciplines. In addition to basic phase identification functions, it can also perform advanced functions such as phase quantitative analysis, crystal structure determination, crystallinity and microstress determination. Before performing whole-rock X-ray diffraction analysis on powder samples in the laboratory, the powder samples need to be compacted into the sample preparation mold.

[0003] In the prior art, the sample-making mold with a hollow middle needs to be matched with frosted glass and tape. The sample-making mold is fixed on a piece of frosted glass with a clip, and sample powder is loaded into the hollow part of the sample-making mold. The sample powder is compacted with another piece of frosted glass, and the hollow opening is sealed with tape. Then, the frosted glass is turned over and the clip is removed to obtain the prepared sample. This method is time-consuming and has low sample preparation efficiency. Utility Model Content

[0004] The utility model aims to provide a device for preparing samples for whole-rock X-ray diffraction analysis in a laboratory, which has high sample preparation efficiency.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The laboratory whole rock X-ray diffraction analysis sample preparation device includes:

[0007] A base is provided with a pressing surface;

[0008] a sample preparation mold configured to hold a sample powder;

[0009] The sample preparation component comprises an adapter plate and a pressing block, wherein the adapter plate is rotatably connected to the base, a sample preparation groove is provided on the surface of the adapter plate, a receiving cavity connected to the sample preparation groove is provided inside the adapter plate, the pressing block is slidably arranged in the receiving cavity, the pressing block can extend into the sample preparation groove and press the sample preparation mold against the inner wall of the sample preparation groove, and the sample preparation mold located in the sample preparation groove can press against the pressing surface;

[0010] The sample pressing assembly comprises a sample pressing plate, wherein the sample pressing plate is aligned with the sample preparation groove and is configured to compact the sample powder in the sample preparation mold.

[0011] Preferably, the base comprises:

[0012] First board;

[0013] The second plate is rotatably connected to the first plate, and the pressing surface is arranged on the second plate.

[0014] Preferably, the sample preparation component further comprises:

[0015] Elastic parts;

[0016] A connecting block, one end of which is connected to the elastic member, and the other end of which is connected to the pressing block. One end of the elastic member is connected to the inner wall of the accommodating cavity, and the other end of the elastic member is connected to the connecting block. The elastic member can drive the pressing block to extend into the sample preparation groove under its own elastic force.

[0017] An adjusting rod, a slot is provided on the connecting block, the adjusting rod is slidably arranged in the accommodating cavity, a bending portion is provided on the adjusting rod, the bending portion can extend into the slot and drive the elastic member to shorten or lengthen.

[0018] Preferably, a plurality of sample preparation grooves are arranged at intervals, and the sample preparation grooves, the pressing blocks, the sample pressing plates, the elastic members and the adjusting rods correspond to each other one by one.

[0019] Preferably, the sample preparation component also includes a guide plate, one end of which is connected to the adjustment rod, and the other end extends out of the adapter plate, a through guide hole is provided on the guide plate, a guide rod is fixed in the accommodating cavity, the guide rod passes through the guide hole, and can slide along the extension direction of the guide hole.

[0020] Preferably, a pull ring is provided at one end of the guide plate extending from the adapter plate.

[0021] Preferably, the sample pressing assembly comprises: a sample pressing frame, the sample pressing plate is connected to the sample pressing frame, and the sample pressing frame is provided with a handle.

[0022] Preferably, the sample pressing component further comprises:

[0023] A support frame is mounted on the base, the support frame is provided with a sliding channel running through in a vertical direction, and the sample pressing frame passes through the sliding channel;

[0024] A spring is arranged in the sliding channel, the sample pressing frame is provided with a pressing surface, one end of the spring presses against the support frame, and the other end presses against the pressing surface.

[0025] Preferably, a limiting cam is provided on the inner wall of the sliding channel, and the sample pressing rack is provided with a guide groove opposite to the limiting cam, the guide groove extends along the through direction of the sliding channel, and the limiting cam extends into the guide groove.

[0026] Preferably, a gasket is fixedly provided at the bottom of the sample preparation tank.

[0027] Advantages of the utility model:

[0028] First, place the sample preparation mold in the sample preparation groove, and use the pressing block to press the sample preparation mold against the inner wall of the sample preparation groove. Then, place the sample powder in the sample preparation mold. Push the handle to compact the sample powder inside the sample preparation mold, seal the opening of the sample preparation mold with tape to ensure that the sample in the sample preparation mold does not spill out. Flip the transfer plate so that the side of the sample preparation mold with the sealing tape presses against the pressing surface. Finally, separate the pressing block from the sample preparation mold to complete the sample preparation. The operation is simple and convenient, and the sample preparation efficiency is high. Description of the drawings

[0029] Figure 1 is a schematic structural diagram of the device for laboratory whole-rock X-ray diffraction analysis sample preparation of the utility model;

[0030] Figure 2 is a cross-sectional view of the sample preparation assembly of the utility model;

[0031] Figure 3 is a schematic structural diagram of the transfer plate, pressing block, elastic member and connecting block of the utility model;

[0032] Figure 4 is a schematic structural diagram of the sample pressing assembly of the utility model.

[0033] In the figure:

[0034] 1. Base; 10. Pressing surface; 11. First plate; 12. Second plate;

[0035] 2. Sample preparation assembly; 21. Transfer plate; 211. Sample preparation groove; 212. Guide rod; 213. Handle; 22. Pressing block; 221. Connecting block; 23. Elastic member; 24. Adjusting rod; 241. Bent portion; 25. Guide plate; 251. Pulling ring;

[0036] 3. Sample pressing assembly; 31. Sample pressing plate; 32. Sample pressing frame; 321. Handle; 322. First pressing rod; 323. Second pressing rod; 324. Sub-support; 33. Support frame; 331. Limit convex; 34. Spring. Detailed implementation manners

[0037] The embodiments of the utility model are described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar components or components with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and should not be construed as a limitation of the utility model.

[0038] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. It may also be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] In the description of the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first feature and the second feature, or may also include the situation where the first feature and the second feature are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above and to the right", and "on the upper surface" of the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below and to the left", and "on the lower surface" of the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0040] The technical solution of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments.

[0041] As Figures 1-4 shown, the present utility model provides a device for preparing samples for laboratory whole-rock X-ray diffraction analysis, which is used to prepare samples for X-ray powder diffraction experiments. The device for laboratory whole-rock X-ray diffraction analysis includes a base 1, a sample preparation mold (not shown in the figure), a sample preparation assembly 2, and a sample pressing assembly 3. Among them, the base 1 is provided with a pressing surface 10; the sample preparation mold is configured to accommodate sample powder; the sample preparation assembly 2 includes a transfer plate 21 and a pressing block 22. The transfer plate 21 is rotatably connected to the base 1. A sample preparation groove 211 is formed on the surface of the transfer plate 21, and a receiving cavity communicating with the sample preparation groove 211 is formed inside the transfer plate 21. The pressing block 22 is slidably disposed in the receiving cavity, and the pressing block 22 can extend into the sample preparation groove 211 and press the sample preparation mold against the inner wall of the sample preparation groove 211. The sample preparation mold located in the sample preparation groove 211 can be pressed against the pressing surface 10; the sample pressing assembly 3 includes a pressing plate 31, the pressing plate 31 is aligned with the sample preparation groove 211, and the pressing plate 31 is configured to compact the sample powder in the sample preparation mold.

[0042] First, place the sample preparation mold in the sample preparation groove 211, and use the pressing block 22 to press the sample preparation mold against the inner wall of the sample preparation groove 211. Then, place the sample powder in the sample preparation mold. Push the handle 321 to drive the pressing plate 31 to compact the sample powder inside the sample preparation mold. Seal the opening of the sample preparation mold with tape to ensure that the sample in the sample preparation mold does not spill. Flip the adapter plate 21 so that the side of the sample preparation mold with the sealing tape is pressed against the pressing surface 10. Finally, separate the pressing block 22 from the sample preparation mold to complete the sample preparation. The operation is simple and convenient, and the sample preparation efficiency is high.

[0043] Specifically, it can be understood that according to the actual requirements of the experimental samples, the sample preparation mold can be set with a variety of different models, which will not be specifically limited here.

[0044] In this embodiment, the material of the pressing block 22 is silica gel, which can play a certain role in shock absorption to ensure the stability of the sample.

[0045] In this embodiment, the length of the sample preparation groove 211 is 51 mm, the width is 36 mm, and the depth is 1 mm. The length of the pressing block 22 is 15 mm, the width is 5 mm, and the thickness is 1 mm.

[0046] More specifically, the thickness of the pressing block 22 and the depth of the sample preparation groove 211 are slightly lower than the thickness of the sample preparation mold to ensure that the sample can be compacted.

[0047] Specifically, a gasket is provided at the bottom of the sample preparation groove 211. In this embodiment, the material of the gasket is frosted glass. The above setting can prevent the internal minerals from being oriented during the compaction of the sample.

[0048] Specifically, the base 1 includes a first plate 11 and a second plate 12. Among them, the second plate 12 is rotatably connected to the first plate 11, and the pressing surface 10 is provided on the second plate 12. With the above setting, during the sample preparation process, the second plate 12 can be rotated to the vertical position first, and then the adapter plate 21 can be rotated so that the side of the sample preparation mold with the sealing tape can be more quickly pressed against the pressing surface 10, preventing the tape from falling off under the pressure of the sample.

[0049] More specifically, the first plate 11, the second plate 12, and the adapter plate 21 are rotationally connected by the same transfer shaft, with a simple structure, low production cost, and convenient use.

[0050] The sample preparation component 2 also includes an elastic member 23, a connecting block 221 and an adjusting rod 24. Among them, one end of the elastic member 23 is connected to the inner wall of the accommodating cavity, and the other end is connected to the connecting block 221. The elastic member 23 can drive the pressing block 22 to extend into the sample preparation groove 211 under its own elastic force; the end of the connecting block 221 away from the elastic member 23 is connected to the pressing block 22; a slot is provided on the connecting block 221, and the adjusting rod 24 can be slidably arranged in the accommodating cavity. The adjusting rod 24 is provided with a bending portion 241, which can extend into the slot and drive the elastic member to shorten or extend. According to the above arrangement, when it is necessary to separate the pressing block 22 from the sample preparation mold, the bending portion 241 can be extended into the slot, and the adjusting rod 24 can be pulled in the direction away from the sample preparation groove 211, so that the elastic member 23 is compressed to drive the pressing block 22 to separate from the sample preparation mold.

[0051] Specifically, a plurality of sample preparation grooves 211 are arranged at intervals, and the sample preparation grooves 211, the pressing blocks 22, the sample pressing plates 31, the elastic members 23 and the adjusting rods 24 correspond to each other. The above arrangement can complete the preparation of multiple samples at the same time, thereby improving the preparation efficiency. In the present embodiment, the sample preparation grooves 211, the pressing blocks 22, the sample pressing plates 31, the elastic members 23 and the adjusting rods 24 are all provided with six. In other embodiments, the number of sample preparation grooves 211, the pressing blocks 22, the sample pressing plates 31, the elastic members 23 and the adjusting rods 24 can also be changed according to the actual needs of the experimental samples, and is not limited here.

[0052] More specifically, the sample preparation component 2 further includes a guide plate 25, one end of which is connected to the adjustment rod 24, and the other end of which extends out of the adapter plate 21. A through guide hole is provided on the guide plate 25, and a guide rod 212 is fixedly provided in the accommodating cavity. The guide rod 212 passes through the guide hole and can slide along the extension direction of the guide hole. The above arrangement makes the bending portion 241 smoother when extending into or out of the card slot, preventing the adjustment rod 24 from being skewed in the accommodating cavity, thereby preventing the bending portion 241 from being unable to extend into the card slot.

[0053] Specifically, a pull ring 251 is provided at one end of the guide plate 25 extending from the adapter plate 21. The above arrangement facilitates the experimenter to pull the adjustment rod 24 through the pull ring 251.

[0054] Specifically, the sample pressing assembly 3 includes a sample pressing frame 32. The sample pressing plate 31 is connected to the sample pressing frame 32, and the sample pressing frame 32 is provided with a handle 321. The above arrangement enables the experimenter to save more effort when pressing the sample pressing frame 32.

[0055] More specifically, the sample pressing assembly 3 further includes a support frame 33 and a spring 34. Among them, the support frame 33 is a gantry structure erected on the base 1. The support frame 33 is provided with a sliding channel penetrating in the vertical direction, and the sample pressing frame 32 passes through the sliding channel; the spring 34 is arranged in the sliding channel. The sample pressing frame 32 is provided with a pressing surface. One end of the spring 34 presses against the support frame 33, and the other end presses against the pressing surface. With the above settings, after a sample pressing operation is completed, the sample pressing frame 32 can be reset under the elastic restoring force of the spring 34, which is more labor-saving.

[0056] In this embodiment, the sample pressing frame 32 includes a first pressing rod 322 and a second pressing rod 323. The first pressing rod 322 is connected to the second pressing rod 323. The cross-sectional area of the first pressing rod 322 in its own radial direction is larger than the cross-sectional area of the second pressing rod 323 in its own radial direction. The pressing surface is arranged on the end surface of the first pressing rod 322 facing the second pressing rod 323. The spring 34 is sleeved on the second pressing rod 323. The handle 321 is connected to the end of the first pressing rod 322 far from the second pressing rod 323, and the sample pressing plate 31 is arranged at the end of the second pressing rod 323 far from the first pressing rod 322.

[0057] Optionally, according to the number of the sample pressing plates 31, a sub-support frame 324 can be selectively provided. The sub-support frame 324 is connected between the sample pressing plate 31 and the second pressing rod 323 to ensure that the second pressing rod 323 can drive multiple sample pressing plates 31 simultaneously.

[0058] In this embodiment, both the elastic member 23 and the spring 34 are common mechanical spring structures in the art and will not be elaborated here. A handle 213 is arranged on the adapter plate 21.

[0059] Specifically, a handle 213 is arranged on the adapter plate 21. With the above settings, it is more labor-saving for the experimenter to rotate the adapter plate 21, preventing it from slipping out of the hand, thereby avoiding damaging the sample.

[0060] Specifically, a limiting convex 331 is arranged on the inner wall of the sliding channel. The sample pressing frame 32 is provided with a guiding groove opposite to the limiting convex 331. The guiding groove extends along the penetrating direction of the sliding channel, and the limiting convex 331 extends into the guiding groove. With the above settings, it can be avoided that the sample pressing plate 31 rotates during the downward pressing process.

[0061] In this embodiment, the limiting convex 331 is specifically a bolt structure screwed on the inner wall of the sliding channel, with a simple structure, low production cost, and not easy to be damaged.

[0062] In this embodiment, anti-slip structures are provided on the pull ring 251, the handle 321 and the grip 213. The anti-slip structure can be an anti-slip pad, such as a rubber pad, etc.; alternatively, the anti-slip structure is an anti-slip protrusion, and the anti-slip protrusion can be a dot-shaped protrusion or a protrusion with a pattern of any shape, as long as it can increase the contact friction between the position where it is located and the hand of the experimenter. The specific form refers to the prior art and is not specifically limited in this embodiment.

[0063] In this embodiment, except for the pressing block 22, the gasket and the anti-slip structure, the materials of the remaining structures of the device for preparing samples for laboratory whole-rock X-ray diffraction analysis are all stainless steel to ensure its durability. In other embodiments, other materials can also be used, which are not limited here.

[0064] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A device for preparing samples for laboratory whole rock X-ray diffraction analysis, characterized in that: include: The base (1) is provided with a pressing surface (10); a sample preparation mold configured to hold a sample powder; A sample preparation component (2), comprising an adapter plate (21) and a pressing block (22), wherein the adapter plate (21) is rotatably connected to the base (1), a sample preparation groove (211) is provided on the surface of the adapter plate (21), a receiving cavity connected to the sample preparation groove (211) is provided inside the adapter plate (21), the pressing block (22) is slidably arranged in the receiving cavity, the pressing block (22) can extend into the sample preparation groove (211) and press the sample preparation mold against the inner wall of the sample preparation groove (211), and the sample preparation mold located in the sample preparation groove (211) can press against the pressing surface (10); The sample pressing assembly (3) comprises a sample pressing plate (31), wherein the sample pressing plate (31) is aligned with the sample preparation groove (211), and the sample pressing plate (31) is configured to compact the sample powder in the sample preparation mold.

2. The device for laboratory whole rock X-ray diffraction analysis and sample preparation according to claim 1, characterized in that: The base (1) comprises: A first plate (11); The second plate (12) is rotatably connected to the first plate (11), and the pressing surface (10) is arranged on the second plate (12).

3. The device for laboratory whole rock X-ray diffraction analysis and sample preparation according to claim 1, characterized in that: The sample preparation component (2) further comprises: An elastic member (23); A connecting block (221), one end of which is connected to the elastic member (23), and the other end of which is connected to the pressing block (22); one end of the elastic member (23) is connected to the inner wall of the accommodating cavity, and the other end of the elastic member (23) is connected to the connecting block (221); the elastic member (23) can drive the pressing block (22) to extend into the sample preparation groove (211) under its own elastic force; An adjusting rod (24), a slot is provided on the connecting block (221), the adjusting rod (24) is slidably arranged in the accommodating cavity, a bending portion (241) is provided on the adjusting rod (24), the bending portion (241) can extend into the slot and drive the elastic member (23) to shorten or lengthen.

4. The device for preparing samples for laboratory whole rock X-ray diffraction analysis according to claim 3, characterized in that: A plurality of sample preparation grooves (211) are arranged at intervals, and the sample preparation grooves (211), the pressing block (22), the sample pressing plate (31), the elastic member (23) and the adjusting rod (24) correspond to each other one by one.

5. The device for laboratory whole rock X-ray diffraction analysis and sample preparation according to claim 3, characterized in that: The sample preparation component (2) further comprises a guide plate (25), one end of the guide plate (25) is connected to the adjustment rod (24), and the other end extends out of the adapter plate (21), a through guide hole is provided on the guide plate (25), a guide rod (212) is fixedly provided in the accommodating cavity, and the guide rod (212) passes through the guide hole and can slide along the extension direction of the guide hole.

6. The device for preparing samples for laboratory whole rock X-ray diffraction analysis according to claim 5, characterized in that: A pull ring (251) is provided at one end of the guide plate (25) extending from the adapter plate (21).

7. The device for laboratory whole rock X-ray diffraction analysis and sample preparation according to claim 1, characterized in that: The sample pressing assembly (3) comprises: a sample pressing frame (32); the sample pressing plate (31) is connected to the sample pressing frame (32); and the sample pressing frame (32) is provided with a handle (321).

8. The device for preparing samples for laboratory whole-rock X-ray diffraction analysis according to claim 7, characterized in that: The sample pressing component (3) further comprises: A support frame (33) is mounted on the base (1), the support frame (33) is provided with a sliding channel running through in a vertical direction, and the sample pressing frame (32) passes through the sliding channel; A spring (34) is arranged in the sliding channel, the sample pressing frame (32) is provided with a pressing surface, one end of the spring (34) presses against the support frame (33), and the other end presses against the pressing surface.

9. The device for preparing samples for laboratory whole-rock X-ray diffraction analysis according to claim 8, characterized in that: A limiting clamping protrusion (331) is arranged on the inner wall of the sliding channel, and the sample pressing frame (32) is provided with a guide groove opposite to the limiting clamping protrusion (331), the guide groove extends along the through direction of the sliding channel, and the limiting clamping protrusion (331) extends into the guide groove.

10. The device for preparing samples for laboratory whole rock X-ray diffraction analysis according to any one of claims 1 to 9, characterized in that: A gasket is fixedly arranged at the bottom of the sample preparation tank (211).

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