A flame atomic absorption sampling tube

Abstract

The utility model discloses a flame atomic absorption sampling tube, including cover, the top of cover is provided with the jack -in of the through to the bottom of cover, the bottom of cover is inserted with the sampling tube of the through jack -in and extends to the top of cover, be equipped with the first positioning component of the clamping positioning of sampling tube on the cover, the left side of cover is equipped with telescopic link. The utility model discloses through setting cover, first positioning component, telescopic link and adjustable support component, first positioning component can hold and release to sampling tube, so, can adjust sampling tube to move up and down in the jack -in, so, can adjust its depth of insertion sample bottle, telescopic link can adjust the interval of sampling tube and adjustable support component, so, can adapt to the sample bottle of different diameter, and adjustable support component can drive cover to move up and down, and cover can cover the top of sample bottle, and adjustable support component makes it adapt to the sample bottle of different height.

Description

Technical Field

[0001] This utility model relates to the field of sample inlet tubes, and in particular to a flame atomic absorption sample inlet tube. Background Technology

[0002] Flame atomic absorption spectrometry (FAS) is an analytical instrument used to determine the content of metallic elements in liquids or soluble samples. Based on atomic absorption spectrometry, it quantitatively analyzes the metals by measuring the absorption of light at a specific wavelength by the ground-state atoms of the target element in the sample. The sample introduction tube in flame atomic absorption spectrometry is a key component of the sample introduction system, mainly used to transfer the liquid sample to be tested into the atomizer.

[0003] When transferring samples into sample vials using a sample inlet tube, the operator needs to hold the tube continuously. However, the tube is long and thin, and holding it for a long time can cause it to shake and become unstable. Therefore, a flame atomic absorption sample inlet tube is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a flame atomic absorption injection tube that can be positioned and supported so that it does not need to be held in the hand when docking with the sample bottle.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a flame atomic absorption sample injection tube, including a cover, the top of the cover having an insertion hole extending to the bottom of the cover, the bottom of the cover having a sample injection tube inserted through the insertion hole and extending to the top of the cover, and the cover having a first positioning component for clamping and positioning the sample injection tube.

[0007] The cover has a telescopic rod on its left side, and an adjustable support assembly at the other end of the telescopic rod.

[0008] As a preferred technical solution of this utility model, a filling groove is provided on the right side of the inner wall of the insertion hole. The first positioning component includes a first positioning screw and a first pressure plate. The first positioning screw is threadedly connected to the right side of the cover, and one end of it extends into the filling groove. The first pressure plate is rotatably disposed at the end of the first positioning screw located in the filling groove, and is used to clamp the sample inlet tube.

[0009] In a preferred embodiment of this utility model, a groove is provided on the left side of the cover, and the telescopic rod includes an outer tube, a slider, and an extension rod.

[0010] The outer tube is fixedly installed on the right side of the inner wall of the groove;

[0011] The slider is slidably disposed inside the outer tube, with its outer wall in contact with the inner wall of the outer tube;

[0012] An extension rod is fixedly mounted on the left side of the slider, with one end extending through to the left side of the outer tube.

[0013] In a preferred embodiment of this invention, the outer tube is provided with a second positioning assembly, which includes a positioning threaded sleeve, a second positioning screw, and a second pressure plate.

[0014] A positioning threaded sleeve is fixedly installed on the top left side of the outer tube;

[0015] The second positioning screw is threaded from the top of the positioning threaded sleeve and extends into the interior of the outer tube;

[0016] The second pressure plate is fixedly installed at the bottom of the second positioning screw, and it is used to clamp the extension rod.

[0017] As a preferred embodiment of this utility model, the adjustable support assembly includes a base plate, a support screw, and a movable threaded sleeve, wherein...

[0018] The support screw is rotatably mounted on the top of the base plate;

[0019] The movable threaded sleeve is threaded to the outside of the support screw, and its right side is fixedly connected to the extension rod.

[0020] As a preferred embodiment of this utility model, a sliding rod is fixedly provided on the top of the base plate, and a sliding sleeve is sleeved on the outside of the sliding rod, and the sliding sleeve is fixedly connected to a movable threaded sleeve.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This utility model includes a cover, a first positioning component, a telescopic rod, and an adjustable support component. The first positioning component can clamp and release the injection tube, thereby adjusting the up-and-down movement of the injection tube within the insertion hole and thus adjusting its insertion depth into the sample bottle.

[0023] The telescopic rod can adjust the distance between the injection tube and the adjustable support assembly, thus adapting to sample bottles of different diameters;

[0024] The adjustable support component can move the cap up and down, and the cap can cover the top of the sample bottle. The adjustable support component makes it suitable for sample bottles of different heights. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0026] Figure 1This is a cross-sectional view of the present invention;

[0027] Figure 2 This is a partial structural schematic diagram of the present invention;

[0028] Figure 3 This is a front view of the present invention;

[0029] Figure 4 This is a schematic diagram of an embodiment of the first positioning component, telescopic rod, and adjustable support component of this utility model after adjustment;

[0030] In the picture:

[0031] 1. Cap; 2. Insertion hole; 3. Sample inlet tube; 4. Filling slot;

[0032] 5. First positioning component; 51. First positioning screw; 52. First pressure plate;

[0033] 6. Groove;

[0034] 7. Telescopic rod; 71. Outer tube; 72. Slider; 73. Extension rod; 74. Positioning threaded sleeve; 75. Second positioning screw; 76. Second pressure plate;

[0035] 8. Adjustable support assembly; 81. Base plate; 82. Support screw; 83. Slide rod; 84. Movable threaded sleeve; 85. Slide sleeve. Detailed Implementation

[0036] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0037] In the attached diagram, all identical reference numerals refer to the same components.

[0038] Example 1

[0039] like Figure 1-3 As shown, this utility model provides a flame atomic absorption sample injection tube, including a cover 1. The top of the cover 1 has an insertion hole 2 that extends through to the bottom of the cover 1. The bottom of the cover 1 is connected to a sample injection tube 3 that extends through the insertion hole 2 and above the cover 1. The cover 1 is provided with a first positioning component 5 for clamping and positioning the sample injection tube 3. The left side of the cover 1 is provided with a telescopic rod 7, and the other end of the telescopic rod 7 is provided with an adjustable support component 8.

[0040] In this embodiment, a filling groove 4 is provided on the right side of the inner wall of the insertion hole 2. The first positioning component 5 includes a first positioning screw 51 and a first pressure plate 52. The first positioning screw 51 is threaded to the right side of the cover 1, and one end of it extends into the filling groove 4. The first pressure plate 52 is rotatably disposed at the end of the first positioning screw 51 located in the filling groove 4, and is used to clamp the sample tube 3.

[0041] In this embodiment, a groove 6 is provided on the left side of the cover 1, and the telescopic rod 7 includes an outer tube 71, a slider 72, and an extension rod 73, wherein,

[0042] The outer tube 71 is fixedly installed on the right side of the inner wall of the groove 6;

[0043] The slider 72 is slidably disposed inside the outer tube 71, and its outer wall is in contact with the inner wall of the outer tube 71;

[0044] The extension rod 73 is fixedly installed on the left side of the slider 72, with one end extending through to the left side of the outer tube 71.

[0045] In addition, the outer tube 71 is provided with a second positioning assembly, which includes a positioning threaded sleeve 74, a second positioning screw 75, and a second pressure plate 76.

[0046] The positioning threaded sleeve 74 is fixedly installed on the top left side of the outer tube 71;

[0047] The second positioning screw 75 is threaded from the top of the positioning threaded sleeve 74 and passes through the interior of the outer tube 71;

[0048] The second pressure plate 76 is fixedly installed at the bottom of the second positioning screw 75 and is used to clamp the extension rod 73.

[0049] In this embodiment, the adjustable support assembly 8 includes a base plate 81, a support screw 82, and a movable threaded sleeve 84, wherein,

[0050] The base plate 81 has a sliding rod 83 fixedly installed on its top, and a sliding sleeve 85 is fitted over the sliding rod 83.

[0051] The support screw 82 is rotatably mounted on the top of the base plate 81;

[0052] The movable threaded sleeve 84 is threaded to the outside of the support screw 82, and its right side is fixedly connected to the extension rod 73. The sliding sleeve 85 is fixedly connected to the movable threaded sleeve 84.

[0053] Please see Figure 4This utility model, by setting a cap 1, a first positioning component 5, a telescopic rod 7, and an adjustable support component 8, allows the first positioning component 5 to clamp and release the sample inlet tube 3, thus adjusting the up-and-down movement of the sample inlet tube 3 within the insertion hole 2, thereby adjusting its insertion depth into the sample bottle. The telescopic rod 7 can adjust the distance between the sample inlet tube 3 and the adjustable support component 8, thus adapting to sample bottles of different diameters. The adjustable support component 8 can drive the cap 1 to move up and down, allowing the cap 1 to cover the top of the sample bottle, and the adjustable support component 8 can adapt to sample bottles of different heights.

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A flame atomic absorption sampling tube, characterized by, Includes a cover (1), the top of the cover (1) has an insertion hole (2) that extends through to the bottom of the cover (1), the bottom of the cover (1) has a through insertion hole (2) that extends to the top of the cover (1) and a sample inlet tube (3) that extends through the insertion hole (2) and extends to the top of the cover (1), and the cover (1) has a first positioning component (5) for clamping and positioning the sample inlet tube (3). The cover (1) is provided with a telescopic rod (7) on the left side, and an adjustable support assembly (8) is provided at the other end of the telescopic rod (7).

2. A flame atomic absorption sampling tube according to claim 1, wherein The inner wall of the insertion hole (2) is provided with a filling groove (4) on the right side. The first positioning component (5) includes a first positioning screw (51) and a first pressure plate (52). The first positioning screw (51) is threaded to the right side of the cover (1), and one end of it extends into the filling groove (4). The first pressure plate (52) is rotatably disposed at one end of the first positioning screw (51) located in the filling groove (4), and it is used to clamp the injection tube (3).

3. A flame atomic absorption sampling tube according to claim 1, wherein The cover (1) has a groove (6) on its left side, and the telescopic rod (7) includes an outer tube (71), a slider (72), and an extension rod (73). The outer tube (71) is fixedly installed on the right side of the inner wall of the groove (6); The slider (72) is slidably disposed inside the outer tube (71), and its outer wall is in contact with the inner wall of the outer tube (71); An extension rod (73) is fixedly set on the left side of the slider (72), with one end extending through the left side of the outer tube (71).

4. A flame atomic absorption sampling tube according to claim 3, wherein The outer tube (71) is provided with a second positioning assembly, which includes a positioning threaded sleeve (74), a second positioning screw (75), and a second pressure plate (76). A positioning threaded sleeve (74) is fixedly installed on the top left side of the outer tube (71); The second positioning screw (75) is threaded from the top of the positioning threaded sleeve (74) and extends into the interior of the outer tube (71); The second pressure plate (76) is fixedly installed at the bottom of the second positioning screw (75) and is used to clamp the extension rod (73).

5. A flame atomic absorption sampling tube according to claim 3, wherein The adjustable support assembly (8) includes a base plate (81), a support screw (82), and a movable threaded sleeve (84), wherein, A support screw (82) is rotatably mounted on the top of the base plate (81); The movable threaded sleeve (84) is threaded to the outside of the support screw (82), and its right side is fixedly connected to the extension rod (73).

6. A flame atomic absorption sampling tube according to claim 5, wherein A sliding rod (83) is fixedly installed on the top of the base plate (81), and a sliding sleeve (85) is sleeved on the outside of the sliding rod (83). The sliding sleeve (85) is fixedly connected to the movable threaded sleeve (84).

Images