Atomic fluorescence spectrophotometer capable of automatically sampling and detecting

Abstract

The utility model discloses an atomic fluorescence spectrophotometer capable of automatically sampling and detecting, and relates to the technical field of atomic fluorescence spectrophotometers. A photometer main body is arranged on one side of the mounting rack; a sampling needle is arranged on the side part of the photometer main body; a sliding block is in sliding fit with the mounting rack; a driving mechanism for driving the sliding block to slide is arranged on the mounting rack; a synchronous belt is arranged between the first synchronous wheel and the second synchronous wheel, and a first servo motor used for driving the second synchronous wheel to rotate is arranged on the bottom face of the mounting frame. The test tube is placed in the synchronous belt, the first servo motor drives the second synchronous wheel to drive the synchronous belt and the second synchronous wheel to rotate, then the test tube is driven to move step by step, the electric push rod is started, the output shaft of the electric push rod pushes the upper portion of the test tube out of the synchronous belt, the sampling needle is inserted into the test tube, and automatic sampling is completed.

Description

Technical Field

[0001] This utility model belongs to the field of atomic fluorescence spectrometers, specifically, it relates to an atomic fluorescence spectrometer with automatic sampling and detection. Background Technology

[0002] Atomic fluorescence spectrometers determine the content of the analyte in a sample by measuring the fluorescence intensity, which shows a linear relationship between the intensity of the fluorescence signal and the content of the analyte in the sample.

[0003] Chinese patent CN214334654U discloses an atomic fluorescence spectrometer with automatic sampling and detection. The feeding assembly drives a belt that holds test tubes. The belt moves the test tubes to a position below a sampling needle. The feeding assembly then lifts the test tubes, allowing the bottom of the sampling needle to be inserted into the test tube for sampling. The test tubes are placed vertically on the belt, allowing them to be continuously installed according to the length of the belt. Increasing the length of the belt increases the number of test tubes, making the feeding assembly more compact.

[0004] However, in the aforementioned atomic fluorescence spectrometer with automatic sampling and detection, both the active shaft and the driven shaft are fixed on the mounting bracket, making it difficult to adjust the distance between the active shaft and the driven shaft, and consequently, making it difficult to quickly adjust the length of the belt to increase the number of test tubes.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and provide an atomic fluorescence spectrometer for automatic sampling and detection.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] An atomic fluorescence spectrometer with automatic sampling and detection includes a mounting frame. A spectrometer body is located on one side of the mounting frame, and a sampling needle is located on the side of the spectrometer body. A slider is slidably fitted on the mounting frame, and a driving mechanism for driving the slider to slide is provided on the mounting frame. A first synchronous wheel is rotatably fitted on the slider, and a second synchronous wheel is rotatably fitted on the upper side of the mounting frame. A synchronous belt is provided between the first and second synchronous wheels. A first servo motor for driving the second synchronous wheel to rotate is provided on the bottom surface of the mounting frame, and an electric push rod is provided at the bottom end of the mounting frame. The output end of the electric push rod passes through the mounting frame.

[0009] Optionally, the mounting bracket has a cross-shaped opening groove on one side, and the slider has a cross-shaped block structure, with the slider slidingly engaged in the cross-shaped opening groove.

[0010] Optionally, the drive mechanism includes a second servo motor disposed in a cross-shaped slot and a threaded pull rod disposed at the output end of the second servo motor, the threaded pull rod being threadedly engaged with the slider.

[0011] Optionally, a placement groove is provided on the upper side of the synchronous belt, a through hole is provided on the bottom surface of the placement groove, a metal placement bucket is provided inside the placement groove, a connecting hole is provided at the bottom of the metal placement bucket, the connecting hole is connected to the through hole, the diameter of the connecting hole is smaller than the inner wall diameter of the metal placement bucket, and a rubber buffer layer is provided on the inner wall of the metal placement bucket.

[0012] Optionally, a support arm is provided on one side of the photometer body, and a mounting hole is provided on the support arm, with one end of the sampling needle fixed in the mounting hole.

[0013] Optionally, the mounting bracket has multiple support legs at the bottom.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0015] By placing the test tube inside the synchronous belt, the first servo motor drives the second synchronous pulley, which in turn rotates the synchronous belt and the second synchronous pulley, thereby causing the test tube to move in a stepping motion. When the electric push rod is activated, the output shaft of the electric push rod pushes the upper part of the test tube out of the synchronous belt, allowing the sampling needle to be inserted into the test tube, thus completing automatic sampling. When the synchronous belt needs to be replaced, the drive mechanism is activated to drive the slider and the first synchronous pulley to slide, reducing the distance between the first and second synchronous pulleys, making it easier to remove the synchronous belt. The new synchronous belt is then fitted onto the first and second synchronous pulleys. The drive mechanism is activated to adjust the distance between the first and second synchronous pulleys, making it easy to adapt to synchronous belts of different lengths. This allows for increasing the number of test tubes by changing the length of the synchronous belt.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional view of a synchronous belt according to an embodiment of the present invention;

[0021] The attached diagram lists the components represented by each number as follows:

[0022] Mounting bracket 1, photometer body 2, sampling needle 3, slider 4, drive mechanism 5, second servo motor 501, threaded pull rod 502, first synchronous pulley 6, second synchronous pulley 7, synchronous belt 8, placement groove 801, through hole 802, metal placement bucket 803, connecting hole 804, first servo motor 9, electric push rod 10, cross-shaped opening groove 11, support arm 12, mounting hole 13, support leg 14.

[0023] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] Please see Figure 1-3 As shown, this embodiment provides an atomic fluorescence spectrometer with automatic sampling and detection, including a mounting frame 1. A spectrometer body 2 is located on one side of the mounting frame 1, and a sampling needle 3 is located on the side of the spectrometer body 2. A slider 4 is slidably fitted on the mounting frame 1. A driving mechanism 5 for driving the slider 4 to slide is provided on the mounting frame 1. A first synchronous wheel 6 is rotatably fitted on the slider 4, and a second synchronous wheel 7 is rotatably fitted on the upper side of the mounting frame 1. A synchronous belt 8 is provided between the first synchronous wheel 6 and the second synchronous wheel 7. Bearings are embedded on the upper side of both the slider 4 and the mounting frame 1. Both the first synchronous pulley 6 and the second synchronous pulley 7 have a rotating shaft at their bottom ends. The rotating shaft is fixed in the bearing to improve the stability of the rotation of the first synchronous pulley 6 and the second synchronous pulley 7. The bottom surface of the mounting frame 1 is provided with a first servo motor 9 for driving the rotation of the second synchronous pulley 7. The output end of the first servo motor 9 is fixedly connected to the rotating shaft on the second synchronous pulley 7. The bottom end of the mounting frame 1 is provided with an electric push rod 10. The upper side of the output shaft of the electric push rod 10 is provided with a rubber pad to reduce the probability of the output shaft of the electric push rod 10 damaging the test tube. The output end of the electric push rod 10 passes through the mounting frame 1.

[0026] By placing the test tube inside the synchronous belt 8, the first servo motor 9 drives the second synchronous pulley 7 to rotate the synchronous belt 8 and the second synchronous pulley 7, thereby driving the test tube to move in a stepping motion. The electric push rod 10 is activated, and the output shaft of the electric push rod 10 pushes the upper part of the test tube out of the synchronous belt 8, allowing the sampling needle 3 to be inserted into the test tube, completing the automatic sampling. When it is necessary to replace the synchronous belt 8, the drive mechanism 5 is activated to drive the slider 4 and the first synchronous pulley 6 to slide, reducing the distance between the first synchronous pulley 6 and the second synchronous pulley 7, making it easier to remove the synchronous belt 8. The new synchronous belt 8 is then fitted onto the first synchronous pulley 6 and the second synchronous pulley 7. The drive mechanism 5 is activated to adjust the distance between the first synchronous pulley 6 and the second synchronous pulley 7, making it easy to adapt to synchronous belts 8 of different lengths. It is also easy to increase the number of test tubes by changing the length of the synchronous belt 8.

[0027] Please see Figure 1 As shown, the mounting bracket 1 in this embodiment has a cross-shaped opening groove 11 on one side, and the slider 4 has a cross-shaped block structure. The slider 4 slides in the cross-shaped opening groove 11, which facilitates the sliding of the slider 4 through the cross-shaped opening groove 11 and improves the stability of the slider 4 sliding.

[0028] Please see Figure 1 As shown, the drive mechanism 5 in this embodiment includes a second servo motor 501 disposed in a cross-shaped opening groove 11 and a threaded pull rod 502 disposed at the output end of the second servo motor 501. The threaded pull rod 502 is threadedly engaged with the slider 4, so that the second servo motor 501 can drive the threaded pull rod 502 to drive the slider 4 and the first synchronous wheel 6 to slide, thereby adjusting the distance between the first synchronous wheel 6 and the second synchronous wheel 7.

[0029] Please see Figure 2-3 As shown, the synchronous belt 8 in this embodiment has a placement groove 801 on its upper side, a through hole 802 on the bottom surface of the placement groove 801, a metal placement bucket 803 inside the placement groove 801, and a connecting hole 804 at the bottom end of the metal placement bucket 803. The connecting hole 804 is connected to the through hole 802. The diameter of the connecting hole 804 is smaller than the inner wall diameter of the metal placement bucket 803. The inner wall of the metal placement bucket 803 is provided with a rubber buffer layer to facilitate the passage of the metal placement bucket 803, reduce the probability of the test tube being crushed by the synchronous belt 8, protect the test tube through the metal placement bucket 803, and improve the convenience of replacing the synchronous belt 8 by transporting the test tube through a single synchronous belt 8.

[0030] Please see Figure 1 As shown, the photometer body 2 in this embodiment is provided with a support arm 12 on one side, and a mounting hole 13 is provided on the support arm 12. One end of the sampling needle 3 is fixed in the mounting hole 13. The bottom end of the mounting frame 1 is provided with multiple support legs 14, which facilitates the installation of the sampling needle 3 on the support arm 12 on the side of the photometer body 2 and supports the mounting frame 1 through the support legs 14.

[0031] Working principle: The test tube is placed in the metal storage container 803. The first servo motor 9 drives the second synchronous pulley 7 to rotate the synchronous belt 8 and the second synchronous pulley 7, thereby driving the test tube to move in a stepping motion. The electric push rod 10 is activated. The output shaft of the electric push rod 10 passes through the through hole 802 and the connecting hole 804 to push the upper part of the test tube out of the metal storage container 803, so that the sampling needle 3 can be inserted into the test tube to complete the automatic sampling. When it is necessary to replace the synchronous belt 8, the drive mechanism 5 is activated. The second servo motor 501 drives the threaded pull rod 502 to move the slider 4 and the first synchronous pulley 6 to slide, reducing the distance between the first synchronous pulley 6 and the second synchronous pulley 7, which facilitates the removal of the synchronous belt 8. The new synchronous belt 8 is then fitted onto the first synchronous pulley 6 and the second synchronous pulley 7. The drive mechanism 5 is activated to adjust the distance between the first synchronous pulley 6 and the second synchronous pulley 7, which can accommodate synchronous belts of different lengths. It is also possible to increase the number of test tubes by changing the length of the synchronous belt 8.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All electrical appliances in this utility model are powered by an external power source or a built-in battery. No restrictions are placed on the model or specific type of any electrical appliance in this utility model. Those skilled in the art can clearly identify the applicable electrical appliance model, specific type, and power supply method based on common knowledge in the field.

[0033] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An automatic sampling detection atomic fluorescence photometer characterized by comprising: The application relates to a light meter, which comprises the following parts: A mounting rack (1) is provided with a light meter body (2) on one side, a sampling needle (3) is arranged on the side of the light meter body (2), a sliding block (4) is slidably arranged on the mounting rack (1), a driving mechanism (5) for driving the sliding block (4) to slide is arranged on the mounting rack (1), a first synchronous wheel (6) is rotatably arranged on the sliding block (4), a second synchronous wheel (7) is rotatably arranged on the upper side of the mounting rack (1), a synchronous belt (8) is arranged between the first synchronous wheel (6) and the second synchronous wheel (7), a first servo motor (9) for driving the second synchronous wheel (7) to rotate is arranged on the bottom surface of the mounting rack (1), an electric push rod (10) is arranged at the bottom end of the mounting rack (1), and the output end of the electric push rod (10) penetrates through the mounting rack (1).

2. An automatic sampling and detection atomic fluorescence photometer according to claim 1, wherein, The mounting rack (1) is provided with a cross-shaped open channel (11) on one side, and the sliding block (4) is in a cross-shaped block structure and is slidably arranged in the cross-shaped open channel (11).

3. An automatic sampling and detection atomic fluorescence photometer according to claim 2, wherein, The driving mechanism (5) comprises a second servo motor (501) arranged in the cross-shaped open channel (11) and a threaded pull rod (502) arranged at the output end of the second servo motor (501), and the threaded pull rod (502) is threadedly connected with the sliding block (4).

4. The automatic sampling and detection atomic fluorescence photometer according to claim 1, wherein, The upper side of the synchronous belt (8) is provided with a placing groove (801), and the bottom surface of the placing groove (801) is provided with a through hole (802).

5. An automatic sampling and detection atomic fluorescence photometer according to claim 4, wherein The placing groove (801) is provided with a metal placing barrel (803), the bottom end of the metal placing barrel (803) is provided with a communication hole (804), and the communication hole (804) is communicated with the through hole (802).

6. An automatic sampling and detection atomic fluorescence photometer according to claim 5, wherein The diameter of the communication hole (804) is smaller than the inner wall diameter of the metal placing barrel (803), and the inner wall of the metal placing barrel (803) is provided with a rubber buffer layer.

7. The automatic sampling and detection atomic fluorescence photometer according to claim 1, wherein, The light meter body (2) is provided with a supporting arm (12) on one side, the supporting arm (12) is provided with a mounting hole (13), and one end of the sampling needle (3) is fixed in the mounting hole (13).

8. The automatic sampling and detection atomic fluorescence photometer according to claim 1, wherein, The bottom end of the mounting rack (1) is provided with a plurality of supporting legs (14).

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