X-ray diffractometer with adjustable sample table

Abstract

The utility model discloses an X-ray diffractometer with an adjustable sample table, and belongs to the technical field of X-ray diffractometers. Comprising an instrument body, a transverse plate is fixedly arranged in the instrument body, a ray probe is installed below the transverse plate, a second motor is installed above the transverse plate, a pneumatic push rod is arranged at the output end of the second motor, a movable plate is fixedly arranged at the lower end of the pneumatic push rod, and a support is arranged below the ray probe. The X-ray diffractometer sample table solves the problems that in the prior art, an X-ray diffractometer sample table cannot be flexibly adjusted according to the position of a ray probe and is inconvenient to use, and the detection effect is affected due to the fact that powder samples stacked on the sample table are uneven in thickness. Further, the movable block is driven to do horizontal reciprocating motion under the action of the guide rod, so that the position of the sample table is adjusted, and a powdery sample on the sample table is positioned right below the ray probe for determination and analysis.

Description

Technical Field

[0001] The utility model relates to the technical field of X-ray diffractometers, in particular to an X-ray diffractometer with an adjustable sample table. Background Art

[0002] An X-ray diffractometer can be used to identify the physical phase of a powdered sample. During the identification process, a sample table is required to carry and place the powdered sample. A Chinese patent with publication number CN212622328U discloses a sample table for an X-ray diffractometer: the patent utilizes an electric push rod I to drive an electric push rod II to move downward, thereby indirectly allowing a rubber scraper to fit against one end of the upper surface of the sample table body, and then utilizes an electric push rod II to drive the push plate to move rightward, thereby indirectly allowing the rubber scraper to move toward the powdered sample on the sample table body, thereby facilitating the pushing of the powdered sample on the sample table body toward a collecting drawer, and further enabling the pushing of the powdered sample into the inner cavity of the collecting drawer, and utilizing the cooperation of an opening groove and a slider to facilitate rapid separation of the collecting drawer from the sample table body.

[0003] However, the above-mentioned prior art solutions also have the following defects:

[0004] The existing X-ray diffractometer sample stage cannot be flexibly adjusted according to the position of the ray probe, which is inconvenient to use. In addition, the powdered samples are piled on the sample stage with uneven thickness, which affects the detection effect. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0006] To this end, one purpose of the utility model is to provide an X-ray diffractometer with an adjustable sample stage. The instrument drives the lead screw through a first motor, and then drives the moving block to move horizontally back and forth under the action of a guide rod, so as to adjust the position of the sample stage so that the powdered sample on the sample stage is located directly below the ray probe for measurement and analysis.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an X-ray diffractometer with an adjustable sample stage, comprising an instrument body, a horizontal plate fixedly arranged inside the instrument body, a ray probe installed below the horizontal plate, a second motor installed above the horizontal plate, a pneumatic push rod arranged on the output end of the second motor, a movable plate fixedly arranged on the lower end of the pneumatic push rod, a bracket arranged below the ray probe, and a sample stage arranged on the bracket.

[0008] Preferably, a first motor is installed at the front end of the bracket, a screw rod is arranged on the output end of the first motor, and guide rods are arranged on both sides of the screw rod.

[0009] Preferably, a moving block is provided on the outer wall of the screw rod, and the moving block is fixedly connected to the sample stage, and a tray is provided above the sample stage.

[0010] Preferably, a scraper is fixedly provided at the lower end of the movable plate.

[0011] Preferably, a positioning groove is provided at the upper end of the sample stage, and a positioning rod matched with the positioning groove is provided at the bottom of the tray.

[0012] Preferably, a through hole is opened on the top of the sample stage, and a plurality of through holes are provided.

[0013] Preferably, a heater is provided inside the sample stage.

[0014] Preferably, a sliding door is provided on the front end surface of the instrument body.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model is an X-ray diffractometer with an adjustable sample stage. The first motor drives the lead screw transmission, and then drives the moving block to move back and forth horizontally under the action of the guide rod, so as to adjust the position of the sample stage, so that the powder sample on the sample stage is located directly below the ray probe for measurement and analysis. The positioning groove and the positioning rod cooperate to facilitate the positioning of the tray. After the sample analysis is completed, the tray can be disassembled to clean or recycle the residual sample in the tray.

[0017] 2. The utility model is an X-ray diffractometer with an adjustable sample table. Through the telescopic movement of the pneumatic push rod, the scraper can be driven to approach the sample so as to adjust the distance between the scraper and the sample, so that when the second motor drives the pneumatic push rod and the scraper to rotate, the samples piled up in the tray are scraped flat to ensure uniform sample thickness and improve the accuracy of the instrument during measurement and analysis. By turning on the heater, heat is transferred to the tray through the through hole, so that the powdered sample in the tray can be dried and dehumidified to prevent the sample from being affected by moisture and affecting the measurement and analysis effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the instrument body of the utility model;

[0020] Figure 3 This is a schematic diagram of the sample table and tray split structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the sample stage of the utility model.

[0022] In the figure: 1. instrument body; 2. bracket; 3. horizontal plate; 4. ray probe; 5. sample stage; 101. sliding door; 201. first motor; 202. screw rod; 203. guide rod; 204. moving block; 301. second motor; 302. pneumatic push rod; 303. movable plate; 304. scraper; 501. positioning groove; 502. through hole; 503. tray; 504. positioning rod; 505. heater. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to solve the technical problems in the prior art that the X-ray diffractometer sample stage cannot be flexibly adjusted according to the position of the X-ray probe, which is inconvenient to use, and the powder sample is piled on the sample stage with uneven thickness, which affects the detection effect, please refer to Figure 1-4 , providing the following technical solutions:

[0025] In this embodiment, an X-ray diffractometer with an adjustable sample stage includes an instrument body 1, a horizontal plate 3 is fixedly arranged inside the instrument body 1, a radiation probe 4 is installed below the horizontal plate 3, a bracket 2 is arranged below the radiation probe 4, a sample stage 5 is arranged on the bracket 2, and a sliding door 101 is arranged on the front end surface of the instrument body 1.

[0026] In this embodiment, a first motor 201 is installed at the front end of the bracket 2, a screw 202 is arranged on the output end of the first motor 201, guide rods 203 are arranged on both sides of the screw 202, a moving block 204 is arranged on the outer wall of the screw 202, and the moving block 204 is fixedly connected to the sample stage 5. By starting the first motor 201, its output end drives the screw 202 to transmit, and then drives the moving block 204 to reciprocate horizontally under the action of the guide rod 203, so as to adjust the position of the sample stage 5, so that the powdered sample on the sample stage 5 is located directly below the X-ray probe 4 for measurement and analysis.

[0027] In this embodiment, a tray 503 is arranged above the sample stage 5, a positioning groove 501 is arranged at the upper end of the sample stage 5, and a positioning rod 504 matched with the positioning groove 501 is arranged at the bottom of the tray 503. The tray 503 is used to support powdered samples. The positioning groove 501 cooperates with the positioning rod 504 to facilitate positioning of the tray 503. After the sample analysis is completed, the tray 503 can be disassembled to clean or recycle the residual sample in the tray 503.

[0028] In this embodiment, a second motor 301 is installed above the horizontal plate 3, and a pneumatic push rod 302 is arranged on the output end of the second motor 301. A movable plate 303 is fixedly arranged at the lower end of the pneumatic push rod 302, and a scraper 304 is fixedly arranged at the lower end of the movable plate 303. Through the telescopic movement of the pneumatic push rod 302, the scraper 304 can be driven to approach the sample so as to adjust the distance between the scraper 304 and the sample, so that when the second motor 301 drives the pneumatic push rod 302 and the scraper 304 to rotate, the samples accumulated in the tray 503 are scraped flat, thereby ensuring that the sample thickness is uniform and improving the accuracy of the instrument during measurement and analysis.

[0029] In this embodiment, a through hole 502 is provided at the top of the sample stage 5, and there are several through holes 502. A heater 505 is provided inside the sample stage 5. By turning on the heater 505, heat is transferred to the bottom of the tray 503 through the through hole 502, so that the powdered sample in the tray 503 can be dried and dehumidified to prevent the sample from being affected by moisture and affecting the effect of the measurement and analysis.

[0030] Working principle: when in use, the sliding door 101 is opened, and the sample is placed in the tray 503. The scraper 304 can be driven close to the sample by the telescopic movement of the pneumatic push rod 302, so as to adjust the distance between the scraper 304 and the sample, so that when the second motor 301 drives the pneumatic push rod 302 and the scraper 304 to rotate, the sample accumulated in the tray 503 is scraped flat to ensure uniform sample thickness. By turning on the heater 505, the heat is transferred to the tray 503 through the through hole 502, so as to dry and dehumidify the powder sample in the tray 503. Then, by starting the first motor 201, its output end drives the screw rod 202 to transmit, and then drives the moving block 204 to reciprocate horizontally under the action of the guide rod 203, so as to adjust the position of the sample stage 5, so that the powder sample on the sample stage 5 is located directly below the X-ray probe 4 for measurement and analysis. After the sample analysis is completed, the tray 503 can be disassembled to clean or recycle the residual sample in the tray 503.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An X-ray diffractometer with an adjustable sample stage, comprising an instrument body (1), characterized in that: A horizontal plate (3) is fixedly arranged inside the instrument body (1), a ray probe (4) is installed below the horizontal plate (3), a second motor (301) is installed above the horizontal plate (3), a pneumatic push rod (302) is arranged on the output end of the second motor (301), a movable plate (303) is fixedly arranged at the lower end of the pneumatic push rod (302), a bracket (2) is arranged below the ray probe (4), and a sample stage (5) is arranged on the bracket (2).

2. The X-ray diffractometer with an adjustable sample stage according to claim 1, characterized in that: A first motor (201) is installed at the front end of the bracket (2); a screw rod (202) is arranged on the output end of the first motor (201); and guide rods (203) are arranged on both sides of the screw rod (202).

3. The X-ray diffractometer with an adjustable sample stage according to claim 2, characterized in that: A moving block (204) is arranged on the outer wall of the screw rod (202), and the moving block (204) is fixedly connected to the sample stage (5), and a tray (503) is arranged above the sample stage (5).

4. The X-ray diffractometer with an adjustable sample stage according to claim 3, characterized in that: A scraper (304) is fixedly provided at the lower end of the movable plate (303).

5. The X-ray diffractometer with an adjustable sample stage according to claim 3, characterized in that: The upper end of the sample stage (5) is provided with a positioning groove (501), and the bottom of the tray (503) is provided with a positioning rod (504) adapted to the positioning groove (501).

6. The X-ray diffractometer with an adjustable sample stage according to claim 1, characterized in that: A through hole (502) is provided at the top of the sample stage (5), and a plurality of through holes (502) are provided.

7. The X-ray diffractometer with an adjustable sample stage according to claim 1, characterized in that: A heater (505) is arranged inside the sample stage (5).

8. The X-ray diffractometer with an adjustable sample stage according to claim 1, characterized in that: The front end surface of the instrument body (1) is provided with a sliding door (101).

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