Atomic fluorescence spectrophotometer

Abstract

The utility model discloses an atomic fluorescence spectrophotometer, and relates to the technical field of detection equipment, the atomic fluorescence spectrophotometer comprises a sample disc, the sample disc comprises an upper tray, a lower tray, a chassis and a rotating shaft, the rotating shaft is rotatably arranged on a connector, the chassis is fixedly arranged on the connector, the rotating shaft passes through the chassis, and the upper tray is fixedly arranged on the rotating shaft. And the upper tray and the lower tray are fixedly arranged on the rotating shaft. The test tubes penetrate through the first holes of the upper tray and the second holes of the lower tray, and the bottom ends of the test tubes abut against the convex blocks or the grooves in the top of the base plate, so that the test tubes are placed on the sample plate, height difference is generated, the test tubes are convenient to take, and influence on detection results due to batch disorder is avoided.

Description

Technical Field

[0001] This application relates to the field of detection equipment technology, and in particular to an atomic fluorescence spectrophotometer. Background Technology

[0002] Atomic fluorescence spectrometers use potassium borohydride or sodium borohydride as reducing agents to reduce the analyte in the sample solution into volatile covalent gaseous hydrides (or atomic vapors), which are then introduced into an atomizer with the help of a carrier gas and atomized in an argon-hydrogen flame to form ground-state atoms.

[0003] An atomic fluorescence spectrometer includes the spectrometer body and a connector. The connector has a sample tray. The test tubes in the sample tray are spaced very close together, making it inconvenient for staff to handle the test tubes. Furthermore, the test tubes are arranged in parallel, which can easily lead to operational errors, resulting in batch confusion and affecting the test results. Summary of the Invention

[0004] To address the issues of operational errors and batch confusion caused by the spacing and arrangement of sample trays and test tubes, this application provides an atomic fluorescence spectrophotometer.

[0005] This application provides an atomic fluorescence spectrometer using the following technical solution:

[0006] An atomic fluorescence spectrometer includes a spectrometer body, a connector, and a sample tray. The connector is connected to the spectrometer body, and the sample tray is disposed on the connector. The sample tray comprises an upper tray, a lower tray, a base, and a rotating shaft. The rotating shaft is rotatably disposed on the connector, and the base is fixedly disposed on the connector. The rotating shaft passes through the base, and the upper and lower trays are fixedly disposed on the rotating shaft. The upper tray has multiple first holes, and the lower tray has multiple second holes. The multiple first holes correspond one-to-one with the multiple second holes. The top wall of the base has multiple protrusions evenly spaced along its circumference, and the protrusions are radially arranged along the base. The top wall of the base has multiple grooves evenly spaced along its circumference, and the grooves are radially arranged along the base. Each groove is located between two adjacent protrusions.

[0007] By adopting the above technical solution, the test tube passes through the first hole of the upper tray and the second hole of the lower tray, and the bottom end of the test tube abuts against the protrusion or groove on the top of the base, so that the test tube can be placed on the sample tray. This creates a height difference when the test tubes are placed in the sample tray, which makes it easier to pick up the test tubes and avoids the test results being affected by batch confusion.

[0008] Preferably, a lifting sleeve is slidably disposed in the second hole of the lower tray, the bottom end of the test tube is inserted into the lifting sleeve, a connecting rod is fixedly disposed at the bottom end of the lifting sleeve, and a roller is rotatably disposed at the bottom end of the connecting rod, the roller abutting against the top wall of the chassis.

[0009] By adopting the above technical solution, when the upper and lower trays are rotated, the lower tray drives the test tubes to rotate through the lifting sleeve. At the same time, the lifting sleeve drives the rollers to rotate on the chassis through the connecting rod. When the rollers move past the protrusions and grooves, they drive the lifting sleeve to move up and down through the connecting rod, so that the test tubes can be moved up and down, making it easier to pick up the test tubes. In addition, the lifting sleeve can protect the bottom of the test tubes, prevent them from being hit, and improve the safety of sample use.

[0010] Preferably, a limiting ring is fixedly provided on the chassis, and the limiting ring is sleeved on the outside of the lower tray.

[0011] By adopting the above technical solution, the limiting ring limits the lower pallet during the rotation process, making the rotation of the lower pallet more stable.

[0012] Preferably, a locking block is slidably disposed inside the limiting ring along its own radial direction, and an elastic element is disposed on the side of the limiting ring away from the locking block. Multiple locking slots are equally spaced on the outer side wall of the lower tray along its own circumference, and the number of locking slots is equal to the sum of the number of multiple protrusions and grooves.

[0013] By adopting the above technical solution, when the upper and lower trays are rotated, the elastic element pushes the locking block into the slot. The locking block limits the lower tray through the slot, so that the roller can be stably positioned on the protrusion or groove. This allows multiple test tubes to remain stable and form a height difference after the sample tray rotates, making it convenient to pick up the test tubes.

[0014] Preferably, a plurality of first holes are equally spaced along the radial and circumferential directions of the upper tray, and a plurality of second holes are equally spaced along the radial and circumferential directions of the lower tray.

[0015] By adopting the above technical solution, the first and second holes in the sample tray are arranged at equal intervals along the diameter and circumference of the sample tray, which makes it possible to quickly identify the placement order when the test tubes are placed on the sample tray, and avoids the impact of batch confusion on the test results.

[0016] Preferably, the diameter of the plurality of first holes gradually increases from the middle of the upper tray to the outer side of the upper tray, and the diameter of the plurality of second holes gradually increases from the middle of the lower tray to the outer side of the lower tray.

[0017] By adopting the above technical solution, the first hole and the second hole have different aperture sizes, which allows the sample tray to accommodate test tubes of different sizes.

[0018] Preferably, a plurality of reinforcing rods are fixedly provided between the upper tray and the lower tray.

[0019] By adopting the above technical solution, the reinforcing rod improves the structural strength of the sample disk, making the sample disk more stable when rotating.

[0020] Preferably, a guide strip is provided on the outer wall of the lifting sleeve, and a guide groove is provided on the side wall of the lower tray located in the second hole. The guide strip is slidably disposed in the guide groove in the vertical direction.

[0021] By adopting the above technical solution, the guide bar slides in the guide groove, thereby guiding the lifting and lowering movement of the lifting sleeve, so that the lifting sleeve will not rotate during the lifting and lowering process.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The upper and lower trays of the sample tray are fixedly connected by a pivot. The bottom end of the pivot is inserted into the central groove of the base tray. Holes are made in the upper and lower trays along the diameter of the sample tray. Multiple protrusions and grooves are installed at the bottom of the holes in the base tray. This creates a height difference when the test tubes are placed in the sample tray, making it easy to pick up the test tubes and avoiding the impact of batch mixing on the test results.

[0024] 2. A lifting sleeve is installed by fitting the lower tray of the sample tray into the holes. A connecting rod is fixedly connected to the bottom of the lifting sleeve, and a roller is fixedly connected to the bottom of the connecting rod, allowing the sample tray to rotate for easy handling of test tubes. The lifting sleeve protects the test tubes from impacts, improving sample handling safety.

[0025] 3. By making the diameter of the holes in the upper and lower trays of the sample tray decrease towards the shaft along the sample diameter direction, the sample tray can accommodate test tubes of different sizes, improving the efficiency of hole utilization and reducing workload. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the atomic fluorescence spectrometer of this application;

[0027] Figure 2 This is a partial structural cross-sectional view of the atomic fluorescence spectrometer of this application;

[0028] Figure 3 This is a partial exploded view of the atomic fluorescence spectrometer structure described in this application.

[0029] Reference numerals: 1. Photometer body; 2. Connector; 3. Sample tray; 4. Upper tray; 5. Lower tray; 6. Base; 7. Rotating shaft; 8. First hole; 9. Second hole; 10. Protrusion; 11. Groove; 12. Lifting sleeve; 13. Connecting rod; 14. Roller; 15. Limiting ring; 16. Locking block; 17. Elastic element; 18. Slot; 19. Reinforcing rod; 20. Guide bar; 21. Guide groove. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 1-3This application will be described in further detail.

[0031] This application discloses an atomic fluorescence spectrometer.

[0032] Reference Figure 1 An atomic fluorescence spectrometer includes a spectrometer body 1, a connector 2, and a sample tray 3. The connector 2 is fixedly installed on one side of the spectrometer body 1, and the sample tray 3 is installed in the middle of the top wall of the connector 2.

[0033] Reference Figure 2 and Figure 3 The sample tray 3 includes an upper tray 4, a lower tray 5, a base 6, and a rotating shaft 7. The bottom end of the rotating shaft 7 is rotatably mounted in the middle of the top wall of the connector 2. The base 6 is fixedly mounted on the top wall of the connector 2, and the rotating shaft 7 passes through the center of the base 6.

[0034] The upper tray 4 and the lower tray 5 are coaxially fixedly mounted on the rotating shaft 7. The upper tray 4 has multiple first holes 8 evenly spaced along its radial and circumferential directions, with the diameter of the first holes 8 gradually increasing from the inside to the outside along the diameter direction of the upper tray 4. The lower tray 5 has multiple second holes 9 evenly spaced along its radial and circumferential directions, with the diameter of the second holes 9 gradually increasing from the inside to the outside along the diameter direction of the lower tray 5, and each of the first holes 8 corresponds to one of the second holes 9.

[0035] Multiple reinforcing rods 19 are fixedly installed on the bottom wall of the upper tray 4, and the bottom ends of the multiple reinforcing rods 19 are fixedly connected to the top wall of the lower tray 5. A lifting sleeve 12 is slidably installed vertically in each of the second holes 9 inside the lower tray 5. A guide groove 21 is opened vertically on the inner side wall of each of the second holes 9 inside the lower tray 5. A guide strip 20 is fixedly installed on the outer side wall of each lifting sleeve 12, and the guide strip 20 is slidably installed vertically in the guide groove 21.

[0036] Multiple protrusions 10 are formed on the top wall of the chassis 6, each protruding along the diameter of the chassis 6, and the multiple protrusions 10 are evenly spaced along the circumference of the chassis 6. Multiple grooves 11 are formed on the top wall of the chassis 6, each groove 11 being recessed along the diameter of the chassis 6, and the multiple grooves 11 are evenly spaced along the circumference of the chassis 6. The multiple protrusions 10 and grooves 11 are arranged alternately along the circumference of the chassis 6.

[0037] Each lifting sleeve 12 has a connecting rod 13 fixedly installed vertically in the middle of its bottom wall. A roller 14 is rotatably installed at the bottom end of the connecting rod 13 with the diameter of the lower tray 5 as the axis, and the roller 14 rolls on the top wall of the chassis 6.

[0038] A limiting ring 15 is fixedly installed on the outer wall of the chassis 6. The limiting ring 15 is located on the outer periphery of the lower tray 5. On opposite sides of the inner wall of the limiting ring 15, locking blocks 16 are slidably installed along their own diameter direction. The ends of the two locking blocks 16 that are close to each other are semi-circular. An elastic element 17 is installed inside the limiting ring 15 on the side where the two locking blocks 16 are far apart. In this application, the elastic element 17 can be a spring.

[0039] Multiple slots 18 are evenly spaced along the circumference of the outer side wall of the lower tray 5. The elastic element 17 pushes the end of the locking block 16 into the slot 18 to limit the lower tray 5. The end of the locking block 16 is set to be semi-circular so that the locking block 16 can disengage from the slot 18 when the lower tray 5 rotates.

[0040] The number of the first holes 8 in the inner ring of the upper tray 4 is the same as the number of multiple slots 18, and the number of slots 18 is the same as the sum of the number of multiple protrusions 10 and grooves 11.

[0041] The implementation principle of an atomic fluorescence spectrometer according to an embodiment of this application is as follows: Test tubes of different sizes pass through the first hole 8 of the upper tray 4, and the bottom end of the test tube is inserted into the lifting sleeve 12. Due to the protrusion 10 and groove 11 on the top wall of the base 6, the heights of the multiple lifting sleeves 12 are different, thus creating a height difference among the multiple test tubes, making it easier for the staff to pick up the test tubes. When the upper tray 4 is rotated, the upper tray 4 drives the lower tray 5 to rotate, and the lower tray 5 drives the lifting sleeve 12 to rotate. The lifting sleeve 12 drives the roller 14 to roll on the protrusion 10 and groove 11 on the top wall of the base 6 through the connecting rod 13, so that the test tubes can move up and down, making it easier for the staff to pick up the test tubes. After the lower tray 5 stops rotating, the elastic element 17 pushes the locking block 16 into the locking groove 18. The locking block 16 limits the lower tray 5 through the locking groove 18, so that the roller 14 can be stably positioned on the protrusion 10 or groove 11, thus ensuring that the multiple test tubes remain stable and form a height difference after the sample tray 3 rotates, thereby facilitating the picking up of the test tubes.

[0042] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. An atomic fluorescence photometer comprising a photometer body (1), a connector (2) connected to the photometer body (1), and a sample disc (3) arranged on the connector (2), characterized in that: The sample disc (3) comprises an upper tray (4), a lower tray (5), a bottom tray (6) and a rotating shaft (7), the rotating shaft (7) is rotationally arranged on the connector (2), the bottom tray (6) is fixedly arranged on the connector (2), the rotating shaft (7) penetrates the bottom tray (6), and the upper tray (4) and the lower tray (5) are fixedly arranged on the rotating shaft (7), a plurality of first holes (8) are equidistantly and circumferentially arranged in the upper tray (4), a plurality of second holes (9) are arranged in the lower tray (5), the diameters of the plurality of second holes (9) gradually increase from the inside to the outside along the diameter direction of the lower tray (5), the plurality of first holes (8) correspond to the plurality of second holes (9) one by one, a plurality of protrusions (10) are equidistantly arranged on the top wall of the bottom tray (6) along the circumferential direction of the bottom tray (6), the protrusions (10) are arranged along the radial direction of the bottom tray (6), a plurality of grooves (11) are equidistantly arranged on the top wall of the bottom tray (6) along the circumferential direction of the bottom tray (6), and the grooves (11) are arranged along the radial direction of the bottom tray (6). Each groove (11) is located between two adjacent protrusions (10).

2. An atomic fluorescence spectrometer according to claim 1, characterised in that: A lifting sleeve (12) is slidably arranged in the second hole (9) of the lower tray (5), the bottom end of the test tube is inserted into the lifting sleeve (12), a connecting rod (13) is fixedly arranged at the bottom end of the lifting sleeve (12), a roller (14) is rotationally arranged at the bottom end of the connecting rod (13), and the roller (14) abuts against the top wall of the bottom tray (6).

3. An atomic fluorescence spectrometer according to claim 1, wherein: A limiting ring (15) is fixedly arranged on the bottom tray (6), and the limiting ring (15) is arranged outside the lower tray (5).

4. An atomic fluorescence spectrometer according to claim 3, wherein: A clamping block (16) is slidably arranged in the limiting ring (15) along the radial direction of the limiting ring (15), the limiting ring (15) is provided with an elastic element (17) on the side away from the lower tray (5), a plurality of clamping grooves (18) are equidistantly arranged on the outer wall of the lower tray (5) along the circumferential direction of the lower tray (5), and the number of the clamping grooves (18) is equal to the sum of the number of the protrusions (10) and the number of the grooves (11).

5. An atomic fluorescence spectrometer according to claim 1, wherein: A plurality of first holes (8) are equidistantly and circumferentially arranged in the upper tray (4), and a plurality of second holes (9) are equidistantly and circumferentially arranged in the lower tray (5).

6. An atomic fluorescence spectrometer according to claim 5, wherein: The diameters of the plurality of first holes (8) gradually increase from the middle of the upper tray (4) to the outside of the upper tray (4), and the diameters of the plurality of second holes (9) gradually increase from the middle of the lower tray (5) to the outside of the lower tray (5).

7. An atomic fluorescence spectrometer according to claim 1, wherein: A plurality of reinforcing rods (19) are fixedly arranged between the upper tray (4) and the lower tray (5).

8. An atomic fluorescence spectrometer according to claim 2, wherein: A guide strip (20) is arranged on the outer wall of the lifting sleeve (12), a guide groove (21) is arranged on the side wall of the lower tray (5) in the second hole (9), and the guide strip (20) is slidably arranged in the guide groove (21) in the vertical direction.

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