Sample box base of X-ray fluorescence spectrophotometer

Abstract

The utility model relates to the technical field of spectral analysis, and discloses an X fluorescence spectrometer sample box base which comprises a sample box, a telescopic rod is fixedly mounted at the bottom end of the sample box, a base is fixedly mounted at the bottom end of the telescopic rod, and a fixing mechanism is arranged in the sample box; the fixing mechanism comprises a fixing ring and a second screw rod, a first connecting shaft is fixedly installed on one side of the fixing ring, one end of the first connecting shaft is rotationally connected to the inner wall of the sample box through a bearing seat, a second connecting shaft is fixedly installed on the other side of the fixing ring, and the second connecting shaft movably penetrates through one side of the sample box. According to the X-ray detection device, X-ray detection can be conveniently carried out on a sample at different angles, the detection efficiency is improved, and the problems that in the prior art, after the sample is fixed, the angle of the sample is difficult to adjust, the sample needs to be clamped again, X-ray detection cannot be conveniently carried out on the sample at different angles, and the detection efficiency is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of spectrum analysis, in particular to a sample box base for an X-ray fluorescence spectrometer. Background Art

[0002] Fluorescence spectrometers use X-ray tubes to generate incident X-rays. The sample is excited by the incident X-rays to generate secondary X-rays. The secondary X-rays of different elements have specific energy characteristics. The spectral intensity of the secondary X-rays is proportional to the amount of the element in the sample. The composition of various elements in the sample can be analyzed based on the strength of the spectral lines.

[0003] According to Chinese patent publication number CN212083279U, a sample box base for an X-ray fluorescence spectrometer is disclosed. The base comprises a lower support rod and an upper telescopic rod disposed at the bottom of the upper sample box, which can be freely extended and retracted upward and downward to adjust the height of the upper sample box. This structure allows the upper sample box to be raised when the sample is small, ensuring that X-rays can reach the sample. Furthermore, when the sample is irregularly shaped, a fixed threaded pin is provided, which, by moving a slider and the upper movable rod upward and downward, ensures that the fixed threaded pin can contact the sample, preventing the sample from shifting. This ensures that the X-ray tube's rays can be precisely projected onto the sample for detection.

[0004] However, in this technical solution, it is difficult to adjust the angle of the sample after the sample is fixed, and the sample needs to be re-clamped, which makes it inconvenient to perform X-ray detection at different angles of the sample, thereby affecting the detection efficiency. For this reason, we propose an X-ray fluorescence spectrometer sample box base. Utility Model Content

[0005] The purpose of the utility model is to provide a sample box base for an X-ray fluorescence spectrometer, which solves the problems in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an X-ray fluorescence spectrometer sample box base, comprising a sample box, a telescopic rod fixedly mounted at the bottom end of the sample box, a base fixedly mounted at the bottom end of the telescopic rod, and a fixing mechanism provided inside the sample box;

[0007] The fixing mechanism includes a fixing ring and a screw rod. A connecting shaft 1 is fixedly installed on one side of the fixing ring. One end of the connecting shaft is rotatably connected to the inner wall of the sample box through a bearing seat. A connecting shaft 2 is fixedly installed on the other side of the fixing ring. The connecting shaft 2 moves through one side of the sample box and is rotatably connected to the sample box through a bearing. A rotating plate is fixedly installed on one end of the connecting shaft. A ring plate is fixedly installed on one side of the sample box. A magnetic seat is inlaid on the rotating plate. The magnetic seat is magnetically connected to the ring plate. The screw rod 2 is threadedly connected to the threaded hole opened on the fixing ring. A knob 2 is fixedly installed on one end of the screw rod, and a head is fixedly installed on the other end of the screw rod.

[0008] Preferably, the number of the second screws is three.

[0009] Preferably, the ring plate is made of iron, and a pocket cloth is provided under the fixed ring. The pocket cloth is fixedly mounted on the inner wall of the sample box. By providing the pocket cloth, a certain protection effect can be provided for the sample to prevent the sample from falling into the sample box and causing collision damage.

[0010] Preferably, a vacuum cavity is provided at the bottom end of the base, a piston pad is slidably connected to the inside of the vacuum cavity, a screw rod 1 is rotatably connected to the top end of the piston pad, the screw rod 1 is threadedly connected to the threaded hole provided at the top end of the inner wall of the vacuum cavity, and a knob 1 is fixedly installed at the top end of the screw rod 2.

[0011] Preferably, the number of the vacuum chambers is two, and a support pad is fixedly installed at the bottom end of the base. By providing the support pad, the sealing between the base and the placement surface can be increased.

[0012] Preferably, the support pad is made of wear-resistant rubber.

[0013] The utility model provides a sample box base for an X-ray fluorescence spectrometer. The sample box base for an X-ray fluorescence spectrometer has the following beneficial effects:

[0014] (1) The X-ray fluorescence spectrometer sample box base, by providing a fixing mechanism, can facilitate X-ray detection of samples at different angles, thereby improving detection efficiency. This solves the problem in the prior art that after the sample is fixed, it is difficult to adjust the angle of the sample and the sample needs to be re-clamped, which makes it inconvenient to perform X-ray detection at different angles of the sample, thereby affecting detection efficiency.

[0015] (2) The base of the sample box of the X-ray fluorescence spectrometer can absorb vacuum between the vacuum chamber and the placement surface through the cooperation of the vacuum chamber, piston pad, screw 1, knob 1 and support pad, so that the base is firmly adsorbed on the placement surface, thereby improving the stability of the sample during detection and ensuring the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a front cross-sectional structural diagram of the present utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0019] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle B part;

[0020] Figure 5 This is a schematic diagram of the fixing ring structure of the utility model.

[0021] In the figure: 1. Sample box; 2. Telescopic rod; 3. Base; 4. Fixing mechanism; 5. Bag; 6. Vacuum chamber; 7. Piston pad; 8. Screw 1; 9. Knob 1; 10. Support pad; 401. Fixing ring; 402. Connecting shaft 1; 403. Connecting shaft 2; 404. Rotating plate; 405. Ring plate; 406. Magnetic seat; 407. Screw 2; 408. Head; 409. Knob 2. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances. Example

[0025] The X-ray fluorescence spectrometer sample box base provided by the utility model is preferably implemented as follows Figures 1 to 5 As shown: A sample box base for an X-ray fluorescence spectrometer, comprising a sample box 1, a telescopic rod 2 fixedly mounted at the bottom end of the sample box 1, a base 3 fixedly mounted at the bottom end of the telescopic rod 2, and a fixing mechanism 4 provided inside the sample box 1;

[0026] The fixing mechanism 4 includes a fixing ring 401 and a second screw 407. A connecting shaft 402 is fixedly installed on one side of the fixing ring 401. One end of the connecting shaft 402 is rotatably connected to the inner wall of the sample box 1 through a bearing seat. A second connecting shaft 403 is fixedly installed on the other side of the fixing ring 401. The second connecting shaft 403 can move through one side of the sample box 1, and the second connecting shaft 403 is rotatably connected to the sample box 1 through a bearing. A rotating plate 404 is fixedly installed on the end of the connecting shaft 402. A ring plate 405 is fixedly installed on one side of the sample box 1. A magnetic seat 406 is inlaid on the rotating plate 404. The magnetic seat 406 is magnetically connected to the ring plate 405. The second screw 407 is threadedly connected to the threaded hole opened on the fixing ring 401. A knob 409 is fixedly installed on one end of the second screw 407, and a head 408 is fixedly installed on the other end of the second screw 407.

[0027] Specifically, in the above technical solution, when the base 3 of the sample box 1 of the X-ray fluorescence spectrometer is in use, the sample is placed in the fixed ring 401, and then the knob 2 409 can be turned, and the knob 2 409 drives the screw 2 407 to rotate, and the screw 2 407 drives the head 408 to move toward the sample, and finally the head 408 clamps the sample, and then the sample can be irradiated and detected by X-rays. When it is necessary to irradiate and detect the sample at different angles, the magnetic base 406 can be closed, and then the rotating plate 404 can be rotated, and the rotating plate 404 drives the connecting shaft 2 403 to rotate, and the connecting shaft 2 403 drives the fixed ring 401 to rotate, and the fixed ring 401 drives the sample to rotate, thereby adjusting the angle of the sample so that X-rays can detect the sample at different angles. Through the above structure, X-ray detection of different angles of the sample can be facilitated, and detection efficiency is improved. This solves the problem in the existing technical solution that it is difficult to adjust the angle of the sample after the sample is fixed, and the sample needs to be re-clamped, which makes it inconvenient to perform X-ray detection at different angles of the sample, thereby affecting the detection efficiency.

[0028] Furthermore, the number of the second screw rods 407 is three.

[0029] Furthermore, the ring plate 405 is made of iron, and a pocket cloth 5 is provided below the fixed ring 401, and the pocket cloth 5 is fixedly mounted on the inner wall of the sample box 1;

[0030] The provision of the bag 5 can provide a certain degree of protection for the sample, thereby preventing the sample from falling into the sample box 1 and causing collision damage. Example

[0031] On the basis of the first embodiment, the sample box base of the X-ray fluorescence spectrometer provided by the present invention is preferably implemented as follows: Figures 1 to 5 As shown: a vacuum chamber 6 is opened at the bottom of the base 3, a piston pad 7 is slidably connected to the inside of the vacuum chamber 6, a screw 8 is rotatably connected to the top of the piston pad 7, the screw 8 is threadedly connected to the threaded hole opened at the top of the inner wall of the vacuum chamber 6, and a knob 9 is fixedly installed on the top of the screw 407.

[0032] Specifically, in the above technical solution, when the sample is being detected, knob 1 9 is turned, and knob 1 9 drives screw 2 407 to move upward, and screw 2 407 drives piston pad 7 to move upward, thereby vacuuming the space between the vacuum chamber 6 and the placement surface, so that the base 3 is firmly adsorbed on the placement surface, thereby improving the stability of the sample during detection and ensuring the accuracy of detection.

[0033] Furthermore, the number of vacuum chambers 6 is two, and a support pad 10 is fixedly mounted on the bottom end of the base 3;

[0034] The support pad 10 is provided to enhance the sealing performance between the base 3 and the placement surface.

[0035] Furthermore, the support pad 10 is made of wear-resistant rubber.

[0036] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A sample box base for an X-ray fluorescence spectrometer, comprising a sample box (1), a telescopic rod (2) fixedly mounted at the bottom end of the sample box (1), and a base (3) fixedly mounted at the bottom end of the telescopic rod (2), characterized in that: A fixing mechanism (4) is provided inside the sample box (1); The fixing mechanism (4) includes a fixing ring (401) and a second screw (407), a first connecting shaft (402) is fixedly installed on one side of the fixing ring (401), one end of the first connecting shaft (402) is rotatably connected to the inner wall of the sample box (1) through a bearing seat, and a second connecting shaft (403) is fixedly installed on the other side of the fixing ring (401), the second connecting shaft (403) is movable through one side of the sample box (1), and the second connecting shaft (403) is rotatably connected to the sample box (1) through a bearing, and the first connecting shaft ( A rotating plate (404) is fixedly installed at one end of the sample box (1), a ring plate (405) is fixedly installed at one side of the sample box (1), a magnetic base (406) is embedded on the rotating plate (404), the magnetic base (406) is magnetically connected to the ring plate (405), the screw rod (407) is threadedly connected to the threaded hole opened on the fixing ring (401), a knob (409) is fixedly installed at one end of the screw rod (407), and a head (408) is fixedly installed at the other end of the screw rod (407).

2. The X-ray fluorescence spectrometer sample box base according to claim 1, characterized in that: The number of the screw rods 2 (407) is three.

3. The X-ray fluorescence spectrometer sample box base according to claim 1, characterized in that: The ring plate (405) is made of iron, and a pocket cloth (5) is provided below the fixed ring (401), and the pocket cloth (5) is fixedly mounted on the inner wall of the sample box (1).

4. The X-ray fluorescence spectrometer sample box base according to claim 1, characterized in that: A vacuum chamber (6) is provided at the bottom end of the base (3), a piston pad (7) is slidably connected to the inside of the vacuum chamber (6), a screw rod (8) is rotatably connected to the top end of the piston pad (7), the screw rod (8) is threadedly connected to the threaded hole provided at the top end of the inner wall of the vacuum chamber (6), and a knob (9) is fixedly installed at the top end of the screw rod (407).

5. The X-ray fluorescence spectrometer sample box base according to claim 4, characterized in that: The number of the vacuum chambers (6) is two, and a support pad (10) is fixedly mounted on the bottom end of the base (3).

6. The X-ray fluorescence spectrometer sample box base according to claim 5, characterized in that: The support pad (10) is made of wear-resistant rubber.

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