Sampling device of atomic absorption spectrometer

Abstract

The utility model belongs to the technical field of spectrometer sampling equipment, and particularly relates to a sampling device of an atomic absorption spectrometer, which comprises a base, a support damping mechanism arranged above the base, and a fixed clamping mechanism arranged above the support damping mechanism. Shock absorption supporting is conducted through a fixed clamping mechanism, an installation plate installed above a supporting shock absorption mechanism, a disc, a limiting table, a first damping shock absorption spring and a placement circular plate, a test tube assembly is placed in a square body above the placement circular plate, and through cooperation of electromagnetic positive iron and electromagnetic negative iron, arc-shaped clamping plates move oppositely or oppositely; an arc-shaped clamping plate is reset through a damping reset spring, so that the arc-shaped clamping plate clamps and fixes the test tube assembly, meanwhile, the test tube assembly is vertically limited through a movable cover body, the clamping and fixing effect is guaranteed, meanwhile, the stability of the device is improved, and the arc-shaped clamping plate is convenient to adjust; therefore, various samples can be tested synchronously, the use is convenient, and the practicability is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of spectrometer sample introduction equipment, specifically relating to a sample introduction device for an atomic absorption spectrometer. Background Technology

[0002] Atomic absorption spectrometry (AAS) utilizes the absorption of light at specific wavelengths by atoms in a sample. When a sample is heated or evaporated, its atoms are excited and transition to higher energy levels. If the sample is then illuminated with light of a specific wavelength, these excited atoms will absorb light of the wavelength corresponding to their energy level difference. By measuring the intensity of the absorbed light, the concentration of the target element in the sample can be inferred. AAS is now widely used for the analysis of macro- and trace elements in metallurgy, geology, mining, petroleum, light industry, agriculture, medicine, health, food, and environmental monitoring.

[0003] A search revealed a Chinese utility model patent application with publication number CN 210401205 U, which discloses a sample introduction device for an atomic absorption spectrometer. The device includes a disc, with rotating shafts symmetrically fixed to its sidewalls. The sidewalls of the disc have symmetrically formed arc-shaped grooves, within which arc-shaped blocks are slidably connected. A recess is also formed on the sidewalls of the disc, within which a driving device for moving the arc-shaped blocks is installed. By using an arc-shaped clamp fixedly connected to one end of a spring, the clamp can hold samples one by one under the action of the spring.

[0004] In existing related technologies, when the disk rotates, the sample is subject to centrifugal force, so the sample is easy to fly out of the arc groove, which is not convenient for element determination and cannot effectively fix and clamp the test tube sample. Therefore, it is urgent to design a sample introduction device for atomic absorption spectrometer to deal with these problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model discloses a sample introduction device for an atomic absorption spectrometer.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] An atomic absorption spectrometer sample introduction device includes a base, a support and shock absorption mechanism above the base, and a fixing and clamping mechanism above the support and shock absorption mechanism.

[0008] The fixed clamping mechanism includes a mounting plate fixedly installed above the supporting damping mechanism. A disc is fixedly installed above the mounting plate. A limiting platform is fixedly installed around the circumference of the disc. A first damping damping spring is movably installed inside the limiting platform. A mounting plate is set above the first damping damping spring. A cover plate is fixedly installed on the mounting plate. Four sets of square bodies are fixedly installed around the circumference of the mounting plate. Movable covers are movably installed above the square bodies. An arc-shaped clamping plate is set inside the square bodies. A test tube assembly is set between the arc-shaped clamping plates. A damping return spring is set between the arc-shaped clamping plates and the square bodies. An electromagnetic anode is fixedly installed inside the square bodies. An electromagnetic cathode is set on one side of the electromagnetic anode and fixedly installed on the outer wall of the arc-shaped clamping plate.

[0009] Preferably, the support and shock absorption mechanism includes a main shaft fixedly arranged vertically on the outer surface of the base, a support plate fixedly installed above the base, a connecting platform fixedly installed on the support plate, a countersunk hole vertically passing through the connecting platform and the support plate, a groove fixedly installed on the connecting platform, a bearing rod provided inside the groove, and a vibration damping component provided between the base and the outer surface of the main shaft.

[0010] Preferably, the test tube assembly includes a test tube body disposed between arc-shaped clamping plates, and a test tube cap is movably mounted on top of the test tube body.

[0011] Preferably, the inner side of the arc-shaped clamping plate is fixedly provided with a non-slip soft material.

[0012] Preferably, the vibration damping assembly includes a support ring disposed above the base, a bracket rod fixedly installed below the support ring, and a vibration damping spring disposed between the support ring and the main shaft.

[0013] Preferably, a connecting bolt is movably installed inside the countersunk hole.

[0014] The beneficial effects are:

[0015] This utility model discloses a sample introduction device for an atomic absorption spectrometer. Through a fixed clamping mechanism, a mounting plate, a disc, a limiting stage, a first damping spring, and a placement circular plate mounted above a support and shock-absorbing mechanism provide shock absorption support. The test tube assembly is placed within a square body above the placement circular plate. The arc-shaped clamping plate moves relative to or towards each other via the cooperation of an electromagnetic anode and cathode, and is reset by a damping reset spring, thus clamping and fixing the test tube assembly. Simultaneously, a movable cover vertically limits the test tube assembly, ensuring effective clamping and fixing, increasing the stability of the device, facilitating adjustment of the arc-shaped clamping plate, and enabling simultaneous testing of multiple samples. It is convenient to use and highly practical. Attached Figure Description

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

[0017] Figure 2 This is a front view structural diagram of the present invention;

[0018] Figure 3 This is a front sectional view of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the square structure of this utility model.

[0020] In the diagram: 1. Base; 2. Support and damping mechanism; 201. Support plate; 202. Countersunk hole; 203. Connecting bolt; 204. Connecting platform; 205. Groove; 206. Support ring; 207. Main shaft; 208. Anti-vibration spring; 209. Support rod; 210. Bearing rod; 3. Fixed clamping mechanism; 301. Mounting plate; 302. Disc; 303. Limiting platform; 304. First damping and damping spring; 305. Placement circular plate; 306. Cover plate; 307. Square body; 3071. Movable cover; 308. Damping return spring; 309. Electromagnetic anode; 3091. Electromagnetic cathode; 310. Arc-shaped clamping plate; 311. Test tube body; 3111. Test tube cap. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first", "second", and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0024] Reference Figure 1-4 The present invention provides an embodiment of an atomic absorption spectrometer sample introduction device, comprising a base 1, a support and shock absorption mechanism 2 above the base 1, and a fixing and clamping mechanism 3 above the support and shock absorption mechanism 2.

[0025] In this embodiment: the support and vibration damping mechanism 2 includes a main shaft 207 fixedly mounted vertically on the outer surface of the base 1. A support plate 201 is fixedly installed above the base 1, and a connecting platform 204 is fixedly installed on the support plate 201. A countersunk hole 202 is vertically provided between the connecting platform 204 and the support plate 201. A groove 205 is fixedly provided on the connecting platform 204, and a bearing rod 210 is provided inside the groove 205. A vibration damping component is provided between the base 1 and the outer surface of the main shaft 207. The vibration damping component includes a support ring 206 located above the base 1, a support rod 209 fixedly installed below the support ring 206, and a vibration damping spring 208 provided between the support ring 206 and the main shaft 207. A connecting bolt 203 is movably installed in the countersunk hole 202. The vibration damping spring 208 achieves vibration damping and extends the service life of the main shaft 207.

[0026] In this embodiment: the fixed clamping mechanism 3 includes a mounting plate 301 fixedly disposed above the supporting damping mechanism 2. A disc 302 is fixedly mounted above the mounting plate 301. A limiting platform 303 is fixedly mounted circumferentially above the disc 302. A first damping damping spring 304 is movably mounted inside the limiting platform 303. A mounting plate 305 is disposed above the first damping damping spring 304. A cover plate 306 is fixedly disposed on the mounting plate 305. A cover plate 306 is fixedly mounted circumferentially above the mounting plate 305. There are four sets of square bodies 307. A movable cover 3071 is movably mounted on top of each square body 307. An arc-shaped clamping plate 310 is provided inside each square body 307. A test tube assembly is positioned between the arc-shaped clamping plates 310. A damping return spring 308 is provided between the arc-shaped clamping plates 310 and the square bodies 307. An electromagnetic anode 309 is fixedly mounted inside each square body 307. An electromagnetic cathode 3091 is provided on one side of the electromagnetic anode 309 and fixedly mounted on the outer wall of the arc-shaped clamping plates 310. The test tube assembly includes test tube bodies 311 positioned between the arc-shaped clamping plates 310, with a test tube cap 3111 movably mounted on top of each test tube body 311. A non-slip, soft material is fixedly provided inside the arc-shaped clamping plates 310. A frame is fixedly mounted on each square body 307. A transparent glass frame is placed inside the frame, and different colored rings are filled within the transparent glass frame. By observing the different colored rings, the type of sample can be determined.

[0027] Working Principle: In use, when the operator needs to place the test tube assembly, the operator first activates the electromagnetic anode 309, which engages with the electromagnetic cathode 3091. The arc-shaped clamping plate 310 moves relative to the anode under the elastic force of the damping return spring 308. The operator places the test tube assembly between the arc-shaped clamping plates 310 located inside the square body 307, and covers the square body 3071 with the movable cover 3071. The operator then turns off the power, causing the electromagnetic anode 309 and electromagnetic cathode 3091 to lose their magnetic attraction and become non-attractive. The arc-shaped clamping plate 310 moves towards the sample under the elastic force of the damping return spring 308, thus clamping the test tube assembly. The atomic absorption spectrometer rotates the clamped test tube assembly for testing. The operator observes the different types of samples inside the test tube assembly through the transparent glass frame and different colored rings within the frame, and performs tests on the samples inside the test tube assembly.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sample introduction device for an atomic absorption spectrometer, characterized in that: Includes a base (1), a support and shock absorption mechanism (2) is provided above the base (1), and a fixing and clamping mechanism (3) is provided above the support and shock absorption mechanism (2); The fixed clamping mechanism (3) includes a mounting plate (301) fixedly disposed above the support damping mechanism (2). A disc (302) is fixedly mounted above the mounting plate (301). A limiting platform (303) is fixedly mounted on the circumference of the disc (302). A first damping damping spring (304) is movably mounted inside the limiting platform (303). A mounting plate (305) is disposed above the first damping damping spring (304). A cover plate (306) is fixedly disposed on the mounting plate (305). Four sets of... A square body (307) is provided, and a movable cover (3071) is movably installed on the top of the square body (307). An arc-shaped clamping plate (310) is provided on the inner side of the square body (307). A test tube assembly is provided between the arc-shaped clamping plates (310). A damping return spring (308) is provided between the arc-shaped clamping plates (310) and the square body (307). An electromagnetic anode (309) is fixedly installed on the inner side of the square body (307). An electromagnetic cathode (3091) is provided on one side of the electromagnetic anode (309) and is fixedly installed on the outer wall of the arc-shaped clamping plate (310).

2. The sample introduction device for an atomic absorption spectrometer according to claim 1, characterized in that: The support and shock absorption mechanism (2) includes a main shaft (207) fixedly arranged vertically on the outer surface of the base (1), a support plate (201) fixedly installed above the base (1), a connecting platform (204) fixedly installed on the support plate (201), a countersunk hole (202) vertically penetrating between the connecting platform (204) and the support plate (201), a groove (205) fixedly installed on the connecting platform (204), a bearing rod (210) provided inside the groove (205), and a vibration damping component provided between the base (1) and the outer surface of the main shaft (207).

3. The sample introduction device for an atomic absorption spectrometer according to claim 1, characterized in that: The test tube assembly includes a test tube body (311) disposed between the arc-shaped clamping plates (310), and a test tube cap (3111) is movably installed above the test tube body (311).

4. The sample introduction device for an atomic absorption spectrometer according to claim 1, characterized in that: The inner side of the arc-shaped clamping plate (310) is fixedly provided with a non-slip soft material.

5. The sample introduction device for an atomic absorption spectrometer according to claim 2, characterized in that: The vibration damping assembly includes a support ring (206) disposed above the base (1), a bracket rod (209) fixedly installed below the support ring (206), and a vibration damping spring (208) disposed between the support ring (206) and the main shaft (207).

6. The sample introduction device for an atomic absorption spectrometer according to claim 2, characterized in that: A connecting bolt (203) is movably installed in the countersunk hole (202).

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