Vacuum cavity of X-ray fluorescence spectrophotometer

Abstract

The utility model discloses an X fluorescence spectrophotometer vacuum cavity which comprises an inner cavity and a cavity bottom, a sliding groove is formed in the inner wall of the inner cavity, a spring is fixedly connected to the bottom of the inner cavity, the other end of the spring is fixedly connected with a sealing plate, the spring is arranged between the inner cavity and the sealing plate in a compressed mode, and the sealing plate is attached to the inner wall of the inner cavity. A sliding block is installed outside the sealing plate, the sliding block is inserted into the sliding groove, and a sealing strip is installed at the bottom of the sealing plate. According to the vacuum cavity of the X-ray fluorescence spectrometer, by compressing the spring, the resilience force of the spring can also react on the sealing plate, so that the sealing strip at the bottom of the sealing plate is tightly attached to the surface of the cavity bottom all the time to form a second-layer sealing effect, the sealing cover is closed to form a first-layer sealing effect, and the vacuum cavity of the spectrometer has a multi-layer sealing structure; and the sealing effect is relatively strong.

Description

Technical Field

[0001] This utility model relates to the field of vacuum chamber technology for spectrometers, specifically to a vacuum chamber for an X-ray fluorescence spectrometer. Background Technology

[0002] A spectrometer, also known as a spectrometer, is widely known as a direct-reading spectrometer. It is a device that uses photodetectors such as photomultiplier tubes to measure the intensity of spectral lines at different wavelengths. It consists of an entrance slit, a dispersive system, an imaging system, and one or more exit slits. It uses dispersive elements to separate the electromagnetic radiation from the radiation source into the desired wavelength or wavelength region and measures the intensity at the selected wavelength. It is divided into two types: monochromators and polychromators.

[0003] The vacuum chambers of X-ray fluorescence spectrometers currently on the market have the following problems when in use:

[0004] 1. In the application of traditional X-ray fluorescence spectrometer vacuum chambers, air is evacuated by a vacuum pump during sample detection to ensure accurate detection data. Therefore, a good sealing effect is required. However, the existing vacuum chamber sealing structure is relatively simple, and its sealing effect is poor.

[0005] 2. In most X-ray fluorescence spectrometers, the vacuum chamber needs to be opened to place samples before use. Since this is done manually, impurities and dust tend to accumulate at the bottom of the chamber after multiple tests. Cleaning requires staff to carry cleaning tools, making the operation time-consuming and labor-intensive. Utility Model Content

[0006] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract, and the title, and such simplifications or omissions should not be used to limit the scope of this utility model.

[0007] 1. Technical problems to be solved:

[0008] To address the issues of the aforementioned vacuum chamber sealing structure being relatively simple, resulting in poor sealing performance, and the tendency for impurities to accumulate at the bottom of the chamber, which requires workers to carry cleaning tools and is time-consuming and labor-intensive to clean, this utility model is proposed.

[0009] Therefore, the purpose of this utility model is to provide a vacuum chamber for an X-ray fluorescence spectrometer, which has a multi-layer sealing structure, resulting in a strong sealing effect. Furthermore, it eliminates the need for staff to carry cleaning tools during cleaning, making the operation time-saving and labor-saving.

[0010] 2. Technical Solution:

[0011] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0012] An X-ray fluorescence spectrometer vacuum chamber includes an inner cavity and a bottom. A groove is formed on the inner wall of the inner cavity. A spring is fixedly connected to the bottom of the inner cavity. A sealing plate is fixedly connected to the other end of the spring. The spring is compressed between the inner cavity and the sealing plate. The sealing plate is attached to the inner wall of the inner cavity. A slider is installed on the outside of the sealing plate. The slider is inserted into the groove. A sealing strip is installed at the bottom of the sealing plate.

[0013] In a preferred embodiment of the vacuum chamber of an X-ray fluorescence spectrometer according to this utility model, a fixed frame is fixedly connected to the outside of the chamber bottom, a slide rail is provided inside the fixed frame, a moving block is inserted inside the slide rail, a support rod is installed outside the moving block, a cleaning strip is provided at the bottom of the support rod, the bottom of the cleaning strip is in contact with the bottom surface of the chamber bottom, a support block is installed at the top of the support rod, a fixed rod is fixedly connected to the outside of the support block, a sliding hole is provided inside the fixed rod, a damping slide plate is movably connected inside the sliding hole, a scraper is installed at the bottom of the damping slide plate, a limit block is installed at the top of the damping slide plate, and a handle is provided at the top of the limit block.

[0014] As a preferred embodiment of the vacuum cavity of the X-ray fluorescence spectrometer of this utility model, a detection stage is provided inside the bottom of the cavity, and the detection stage has air holes inside.

[0015] As a preferred embodiment of the vacuum chamber of an X-ray fluorescence spectrometer according to the present invention, the detection stage has an installation groove inside, and a probe is installed inside the installation groove.

[0016] As a preferred embodiment of the vacuum chamber of an X-ray fluorescence spectrometer according to this utility model, a base is installed at the bottom of the fixing frame, and an indicator light is provided on the outside of the fixing frame.

[0017] In a preferred embodiment of the vacuum cavity of an X-ray fluorescence spectrometer according to the present invention, a connecting block is installed outside the fixed frame, a hydraulic rod is installed outside the connecting block, and a fixed block is installed at the other end of the hydraulic rod.

[0018] In a preferred embodiment of the vacuum cavity of an X-ray fluorescence spectrometer according to the present invention, the other end of the fixing block is fixedly connected to the outside of the cover, and the cover has an inner cavity.

[0019] 3. Beneficial effects:

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This type of X-ray fluorescence spectrometer vacuum chamber uses a compression spring, which causes the spring's rebound force to react on the sealing plate. This ensures that the sealing strip at the bottom of the sealing plate remains tightly attached to the surface of the chamber bottom, forming a second layer of sealing. The closing of the cover forms the first layer of sealing, giving the spectrometer vacuum chamber a multi-layer sealing structure with a strong sealing effect.

[0022] This type of X-ray fluorescence spectrometer vacuum chamber can be cleaned by pushing the handle to make the cleaning strip at the bottom of the support rod wipe the left and right surfaces of the chamber. Then, press the handle to make the scraper fit against the front and back surfaces of the bottom of the chamber. Then push and wipe to clean the bottom of the chamber around the perimeter. After repeating the operation, the impurities and dust on the bottom surface of the chamber can be removed. The operator does not need to carry cleaning tools during the cleaning process, which saves time and effort. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0024] Figure 1 This is a schematic diagram of the overall structure of the vacuum cavity of an X-ray fluorescence spectrometer according to the present invention;

[0025] Figure 2 This is a schematic diagram of the hydraulic rod structure of the vacuum cavity of an X-ray fluorescence spectrometer according to the present invention;

[0026] Figure 3 This is a schematic diagram of the groove structure of the vacuum cavity of an X-ray fluorescence spectrometer according to the present invention;

[0027] Figure 4 This is a schematic diagram of the spring structure of the vacuum cavity of an X-ray fluorescence spectrometer according to the present invention;

[0028] Figure 5 This is a schematic diagram of the fixing rod structure of the vacuum cavity of an X-ray fluorescence spectrometer according to the present invention;

[0029] Figure 6 This utility model relates to a vacuum cavity for an X-ray fluorescence spectrometer. Figure 5 Enlarged view of section A in the middle.

[0030] The following are the labels in the diagram: 1. Inner cavity; 2. Cavity bottom; 3. Testing platform; 4. Mounting slot; 5. Probe; 6. Air hole; 7. Slide rail; 8. Fixing frame; 9. Indicator light; 10. Base; 11. Connecting block; 12. Hydraulic rod; 13. Fixing block; 14. Cover; 15. Slide groove; 16. Slider; 17. Sealing plate; 18. Spring; 19. Sealing strip; 20. Fixing rod; 21. Slide hole; 22. Damping slide plate; 23. Scraper; 24. Limiting block; 25. Handle; 26. Support block; 27. Cleaning strip; 28. Support rod; 29. ​​Moving block. Detailed Implementation

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0032] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, deviating from the general scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0033] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0034] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0036] This utility model provides an overall structural schematic diagram of an embodiment of a vacuum cavity for an X-ray fluorescence spectrometer, including:

[0037] Please see Figures 1-6This embodiment of an X-ray fluorescence spectrometer vacuum chamber includes an inner cavity 1 and a cavity bottom 2. A groove 15 is formed on the inner wall of the inner cavity 1. A spring 18 is fixedly connected to the bottom of the inner cavity 1, and a sealing plate 17 is fixedly connected to the other end of the spring 18. The spring 18 is compressed between the inner cavity 1 and the sealing plate 17. The sealing plate 17 is attached to the inner wall of the inner cavity 1. A slider 16 is installed on the outside of the sealing plate 17 and is inserted into the groove 15. A sealing strip 19 is installed at the bottom of the sealing plate 17. By compressing the spring 18, the rebound force of the spring 18 will also act on the sealing plate 17, so that the sealing strip 19 at the bottom of the sealing plate 17 is always tightly attached to the surface of the cavity bottom 2, forming a second layer of sealing effect. The closing of the cover 14 will form a first layer of sealing effect, so that the spectrometer vacuum chamber has a multi-layer sealing structure and its sealing effect is strong.

[0038] It is worth noting that, in order to eliminate the need to carry cleaning tools and save time and effort during operation, specifically, a fixed frame 8 is fixedly connected to the outside of the cavity bottom 2. A slide rail 7 is provided inside the fixed frame 8, and a moving block 29 is inserted inside the slide rail 7. A support rod 28 is installed on the outside of the moving block 29. A cleaning strip 27 is provided at the bottom of the support rod 28, and the bottom of the cleaning strip 27 is in contact with the surface of the cavity bottom 2. A support block 26 is installed on the top of the support rod 28, and a fixed rod 20 is fixedly connected to the outside of the support block 26. A sliding hole 21 is provided inside the fixed rod 20, and the sliding hole 21 is movably connected inside. There is a damping slide plate 22, a scraper 23 is installed at the bottom of the damping slide plate 22, and a limit block 24 is installed at the top of the damping slide plate 22. The limit block 24 has a handle 25 at the top. By pushing the handle 25, the cleaning strip 27 at the bottom of the support rod 28 wipes the left and right surfaces of the cavity. Then, press the handle 25 to make the scraper 23 fit against the front and rear surfaces of the cavity bottom 2. Then push and wipe to clean the circumference of the cavity bottom 2. After repeating the operation, the impurities and dust on the surface of the cavity bottom 2 can be cleaned. The staff does not need to carry cleaning tools when cleaning, which saves time and effort.

[0039] Next, in order to facilitate the vacuum pump to extract air, a detection platform 3 is provided inside the bottom of the cavity 2. The detection platform 3 has air holes 6 inside. Through the structure of the air holes 6, it is convenient for the vacuum pump to extract air from the inside of the inner cavity 1.

[0040] Meanwhile, in order to better test the samples, the testing station 3 has an installation slot 4 inside, and a probe 5 is installed inside the installation slot 4. Through the structure of the installation slot 4 and the probe 5, the sample testing effect is well achieved.

[0041] Furthermore, in order to support the spectrometer, a base 10 is installed at the bottom of the fixed frame 8, and an indicator light 9 is provided on the outside of the fixed frame 8. The structure of the base 10 effectively supports the spectrometer.

[0042] It is worth noting that, in order to facilitate opening and support the cover 14, a connecting block 11 is installed on the outside of the fixing frame 8, a hydraulic rod 12 is installed on the outside of the connecting block 11, and a fixing block 13 is installed on the other end of the hydraulic rod 12. Through the structure of the connecting block 11 and the hydraulic rod 12, it is convenient for the staff to open the cover 14 and to support the cover 14.

[0043] Finally, in order to fix the hydraulic rod 12, specifically, the other end of the fixing block 13 is fixedly connected to the outside of the cover 14, and the cover 14 has an inner cavity 1. Through the structure of the fixing block 13, the hydraulic rod 12 is fixed in a good way.

[0044] Combination Figures 1-6 The specific usage process of the X-ray fluorescence spectrometer vacuum chamber of this embodiment is as follows:

[0045] 1: According to the actual use, a groove 15 can be opened on the inner wall of the inner cavity 1, and a spring 18 is fixedly connected to the bottom of the inner cavity 1. A sealing plate 17 is fixedly connected to the other end of the spring 18. The spring 18 is compressed between the inner cavity 1 and the sealing plate 17, and the sealing plate 17 is attached to the inner wall of the inner cavity 1. A slider 16 is installed on the outside of the sealing plate 17. The slider 16 is inserted into the groove 15. A sealing strip 19 is installed at the bottom of the sealing plate 17.

[0046] 2: When the spectrometer cover 14 is closed, the closure of the cover 14 will form the first layer of sealing effect. Then, as the slider 16 slides inside the slide groove 15, the sealing plate 17 will slide and compress the spring 18 as the cover 14 closes. The rebound force of the spring 18 will also act on the sealing plate 17, so that the sealing strip 19 at the bottom of the sealing plate 17 will always be tightly attached to the surface of the cavity bottom 2. At this time, the second layer of sealing effect can be formed. Thus, the vacuum cavity of the spectrometer has a multi-layer sealing structure and its sealing effect is strong.

[0047] 3. Finally, a fixed frame 8 is fixedly connected to the outside of the cavity bottom 2, and a slide rail 7 is provided inside the fixed frame 8. A moving block 29 is inserted inside the slide rail 7, and a support rod 28 is installed outside the moving block 29. A cleaning strip 27 is provided at the bottom of the support rod 28, and the bottom of the cleaning strip 27 is in contact with the surface of the cavity bottom 2. A support block 26 is installed at the top of the support rod 28, and a fixed rod 20 is fixedly connected to the outside of the support block 26. A sliding hole 21 is provided inside the fixed rod 20, and a damping slide plate 22 is movably connected inside the sliding hole 21. A scraper 23 is installed at the bottom of the damping slide plate 22, and a limit block 24 is installed at the top of the damping slide plate 22. A handle 25 is provided at the top of the limit block 24. After multiple tests and sample placements, if impurities and dust accumulate at the bottom of the cavity 2, the handle 25 can be held to push the fixing rod 20. Due to the moving block 29 at its bottom and the slide rail 7 of the fixing frame 8, the fixing rod 20 can drive the support block 26 and the cleaning strip 27 at the bottom of the support rod 28 to wipe the left and right surfaces of the cavity, thus cleaning away the impurities and dust on its surface. Then, press the handle 25 to make the damping slide plate 22 slide in the sliding hole 21 until the scraper 23 at its bottom fits against the front and rear surfaces of the bottom of the cavity 2. Then push and wipe to clean the impurities and dust on its surface. After repeating this operation, the impurities and dust on the surface of the bottom of the cavity 2 can be cleaned. During the cleaning, the staff does not need to carry cleaning tools, which saves time and effort.

[0048] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An X-ray fluorescence spectrometer vacuum chamber, characterized by, Including inner chamber (1) and chamber bottom (2), the inner wall of the inner chamber (1) is provided with a chute (15), the bottom of the inner chamber (1) is fixedly connected with a spring (18), the other end of the spring (18) is fixedly connected with a sealing plate (17), the spring (18) is arranged between the inner chamber (1) and the sealing plate (17), the sealing plate (17) is attached to the inner wall of the inner chamber (1), the sealing plate (17) is externally mounted with a sliding block (16), the sliding block (16) is inserted into the chute (15), and the sealing plate (17) is mounted with a sealing strip (19) at the bottom.

2. The x-ray fluorescence spectrometer vacuum chamber of claim 1, wherein, The chamber bottom (2) is fixedly connected with a fixed frame (8), the fixed frame (8) is internally provided with a sliding rail (7), the sliding rail (7) is internally inserted with a moving block (29), the moving block (29) is externally mounted with a supporting rod (28), the supporting rod (28) is provided with a cleaning strip (27) at the bottom, the cleaning strip (27) is attached to the surface of the chamber bottom (2), the supporting rod (28) is mounted with a supporting block (26) at the top, the supporting block (26) is fixedly connected with a fixed rod (20) at the outside, the fixed rod (20) is internally provided with a sliding hole (21), the sliding hole (21) is movably connected with a damping sliding plate (22) at the inside, the damping sliding plate (22) is mounted with a scraping strip (23) at the bottom, the damping sliding plate (22) is mounted with a limiting block (24) at the top, and the limiting block (24) is provided with a handle (25) at the top.

3. The x-ray fluorescence spectrometer vacuum chamber of claim 1, wherein, The chamber bottom (2) is internally provided with a detection table (3), and the detection table (3) is internally provided with an air hole (6).

4. The X-ray fluorescence spectrometer vacuum chamber of claim 3, wherein, The detection table (3) is internally provided with a mounting groove (4), and the mounting groove (4) is internally mounted with a probe (5).

5. The x-ray fluorescence spectrometer vacuum chamber of claim 2, wherein, The fixed frame (8) is mounted with a base (10) at the bottom, and the fixed frame (8) is externally provided with an indicating lamp (9).

6. The X-ray fluorescence spectrometer vacuum chamber of claim 5, wherein, The fixed frame (8) is externally mounted with a connecting block (11), and the connecting block (11) is externally mounted with a hydraulic rod (12), and the other end of the hydraulic rod (12) is mounted with a fixed block (13).

7. The X-ray fluorescence spectrometer vacuum chamber of claim 6, wherein, The other end of the fixed block (13) is fixedly connected with the outside of the cover (14), and the cover (14) is internally provided with the inner chamber (1).

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