Visual adjusting device for auxiliary gap of direct-reading spectrum instrument

Abstract

The invention discloses a direct-reading spectrometer auxiliary gap visual adjusting device, and belongs to the technical field of direct-reading spectrometers, the direct-reading spectrometer auxiliary gap visual adjusting device comprises a cylindrical hollow tube body located between an upper electrode base and a lower electrode base, and electrode covers distributed up and down are arranged in the cylindrical hollow tube body; a radial semicircular groove is formed in the middle of the outer side wall of the cylindrical hollow pipe body, and a cake-shaped positioning mapping body matched with the radial semicircular groove is arranged in the radial semicircular groove; the cake-shaped positioning mapping body comprises a body of a cylindrical structure, the front end of the body is provided with a radial staggered platform matched with the radial semicircular groove, and the rear end of the body is provided with a handle. Symmetrically-distributed central pits are formed in the center of the body, and the tips of the upper electrode and the lower electrode are located in the central pits. According to the visual adjusting device for the auxiliary gap of the direct-reading spectrometer, the accurate qualification rate of product mapping is guaranteed, the purposes of reducing cost and increasing efficiency are achieved, and cyclic utilization of the auxiliary gap discharging boxes of the direct-reading spectrometer is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of direct-reading spectrometers, and in particular to a visual adjustment device for auxiliary gaps of direct-reading spectrometers. Background Art

[0002] The auxiliary gap discharge link of the direct reading spectrometer plays a vital role in the analysis process. It ensures the reliability and stability of sample excitation by secondary voltage boosting and preventing arc breaking. Therefore, regular maintenance and reasonable selection of electrode spacing and excitation atmosphere can further improve the analysis accuracy and service life of the instrument.

[0003] The main function of the auxiliary gap is to boost the voltage twice to ensure that arc or discharge (spark) can be reliably initiated between the electrode and the sample (or counter electrode). Once the arc is successfully initiated, the main circuit will maintain the spark discharge, and the auxiliary electrode will no longer discharge to reduce interference with the excitation process. The auxiliary gap ensures that the arc can be quickly initiated at the initial stage of sample excitation by providing additional high-voltage discharge, thereby improving the reliability and stability of the excitation. During the excitation process, if the arc is broken or there is no spark, the auxiliary electrode will start the high-voltage discharge again to maintain the continuity of the excitation work and effectively prevent the occurrence of arc breaking.

[0004] However, after the auxiliary gap has been used for a period of time, carbon deposits will be generated at the discharge tip. When the carbon deposits accumulate to a certain extent, it will cause discharge around the edges of the auxiliary electrode, which will cause leakage and electrode damage, resulting in unreliable sample excitation and even failure to excite in severe cases. Therefore, the auxiliary gap needs to be regularly maintained, cleaned or replaced. Among them, the unit price of replacing the auxiliary gap discharge box as a whole is relatively high; the main method of maintaining and cleaning the electrode is now to remove the electrodes on both sides from the auxiliary gap box each time the electrodes are maintained and cleaned, and the internal excitation light source and auxiliary electrode are cleaned at the same time. Usually, the analysis gap uses a spacing of 4-5mm to balance the ease of excitation and analysis accuracy, and the size of the electrode spacing has a significant impact on the analysis accuracy: if the electrode spacing is too large, the stability is poor and it is difficult to excite; if the electrode spacing is too small, although the excitation is easy, as the number of discharges increases, the condensed matter on the auxiliary electrode will increase, resulting in a smaller spacing, affecting the analysis accuracy. In addition, the auxiliary gap discharge box is designed for a closed space, and the analysis gap needs to be adjusted when the electrode is reinstalled after cleaning and polishing to ensure that the electrode is installed within a reasonable spacing range of 4-5mm. However, the existing auxiliary gap discharge box cannot observe the internal electrode distance. Based on this, the present invention proposes a visual adjustment device for the auxiliary gap of a direct-reading spectrometer. Summary of the invention

[0005] The purpose of the present invention is to provide a device for visually adjusting the auxiliary gap of a direct-reading spectrometer to solve the above-mentioned problems.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention discloses an auxiliary gap visualization adjustment device for a direct-reading spectrometer, comprising a cylindrical hollow tube body located between upper and lower electrode bases, wherein electrode covers distributed up and down are arranged in the cylindrical hollow tube body; a radial semicircular groove is provided at the middle position of the outer wall of the cylindrical hollow tube body, wherein a pie-shaped positioning mark body matching the radial semicircular groove is arranged in the radial semicircular groove; the pie-shaped positioning mark body comprises a main body of a columnar structure, wherein a radial offset matching the radial semicircular groove is provided at the front end of the main body, and a handle is provided at the rear end of the main body; a symmetrically distributed central pit is provided at the center position of the main body, and the tips of the upper and lower electrodes are located in the central pit.

[0008] Furthermore, the inner diameter of the cylindrical hollow tube is consistent with the outer diameter of the electrode base.

[0009] Furthermore, the height of the cylindrical hollow tube body is consistent with the height of the middle discharge chamber of the auxiliary gap discharge box.

[0010] Furthermore, the thickness of the pie-shaped positioning mark is consistent with the width of the radial semicircular groove.

[0011] Furthermore, the front end of the radial offset is consistent with the inner diameter of the cylindrical hollow tube; the rear end of the radial offset is consistent with the outer diameter of the cylindrical hollow tube.

[0012] Furthermore, the depth of the central pit is 0.5 mm.

[0013] Furthermore, the thickness of the pancake-shaped positioning mark is 5 mm.

[0014] Furthermore, the coaxiality of the electrode and the central pit is consistent.

[0015] Furthermore, the distance between the upper and lower electrodes is 4 to 5 mm.

[0016] Furthermore, the cylindrical hollow tube and the pancake-shaped positioning mark are both made of transparent acrylic material.

[0017] Compared with the prior art, the beneficial technical effects of the present invention are:

[0018] The direct-reading spectrometer auxiliary gap visual adjustment device of the invention has a simple structure, is easy to operate, and is economical and practical. Through visual adjustment, it can effectively solve the problem that the spacing between the electrodes cannot be accurately adjusted when the electrodes of the direct-reading spectrometer auxiliary gap box are cleaned and replaced, thereby ensuring the accuracy of the direct-reading spectrometer analysis. In short, the direct-reading spectrometer auxiliary gap visual adjustment device of the invention not only ensures the accurate qualified rate of product calibration, but also achieves the purpose of reducing costs and increasing efficiency, and realizes the recycling of the direct-reading spectrometer auxiliary gap discharge box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 This is a front view of the visual adjustment device for the auxiliary gap of the direct-reading spectrometer of the present invention;

[0021] Figure 2 It is a structural diagram of a cylindrical hollow tube;

[0022] Figure 3 Pie-shaped positioning marker structure Figure 1 ;

[0023] Figure 4 Pie-shaped positioning marker structure Figure 2 ;

[0024] Explanation of the reference numerals: 1. electrode base; 2. cylindrical hollow tube; 3. electrode; 4. pancake-shaped positioning mark; 2-1. radial semicircular groove; 4-1. central pit; 4-2. handle through hole. DETAILED DESCRIPTION

[0025] like Figure 1-4 As shown, a visual adjustment device for auxiliary gap of a direct-reading spectrometer comprises a cylindrical hollow tube body 2 located between upper and lower electrode bases 1, and electrodes 3 distributed up and down are covered in the cylindrical hollow tube body 2.

[0026] A radial semicircular groove 2-1 is provided in the middle of the outer wall of the cylindrical hollow tube 2, and a matching pancake-shaped positioning mark 4 is provided in the radial semicircular groove 2-1. The inner diameter of the cylindrical hollow tube 2 is consistent with the outer diameter of the electrode base 1. The height of the cylindrical hollow tube 2 is consistent with the height of the middle discharge chamber of the auxiliary gap discharge box.

[0027] The pie-shaped positioning mark body 4 includes a main body of a cylindrical structure, and a radial step matching the radial semicircular groove 2-1 is provided at the front end of the main body, and the thickness of the pie-shaped positioning mark body 4 is consistent with the width of the radial semicircular groove 2-1. The front end of the radial step is consistent with the inner diameter of the cylindrical hollow tube body 2; the rear section of the radial step is consistent with the outer diameter of the cylindrical hollow tube body 2. Specifically, after the pie-shaped positioning mark body 4 is inserted into the radial semicircular groove 2-1, it forms a complete columnar structure with the cylindrical hollow tube body 2.

[0028] The rear end of the body is provided with a handle, and a handle through hole 4-2 is provided on the handle for tying a hand rope. A symmetrically distributed central pit 4-1 is provided at the center of the body, and the tips of the upper and lower electrodes 3 are located in the central pit 4-1, and the coaxiality of the electrodes 3 and the central pit 4-1 is consistent. The depth of the central pit 4-1 is 0.5 mm, and the thickness of the pancake-shaped positioning mark body 4 is 5 mm, which ensures that the distance between the upper and lower electrodes 3 is 4 to 5 mm.

[0029] The cylindrical hollow tube body 2 and the pancake-shaped positioning mark body 4 are both made of transparent acrylic material for easy observation.

[0030] The action process of the present invention is as follows:

[0031] First, disassemble the auxiliary gap discharge box of the direct reading spectrometer, unscrew the end cover screws at both ends of the discharge box, pull out the electrode base 1 from both ends, and disassemble the electrode 3; then, clean and polish the removed electrode 3 or replace it with a new electrode 3; then, insert the pancake-shaped positioning mark 4 into the radial semicircular groove 2-1 cut of the cylindrical hollow tube 2, and the end of the pancake-shaped positioning mark 4 is close to the inner wall of the cylindrical hollow tube 2, so that the central pit 4-1 of the pancake-shaped positioning mark 4 is concentric with the cylindrical hollow tube 2; then, the cleaned and polished or new electrode 3 is inserted into the cylindrical hollow tube 2. Install it on the electrode base 1, so that the electrode is deeply inserted and maintains a longer size, and then the two electrode bases 1 are respectively buckled on the two ends of the cylindrical hollow tube body 2. The upper and lower electrodes 3 can retract with the pushing. By observing the contact condition between the electrode 3 inside the cylindrical hollow tube body 2 and the pancake-shaped positioning mark 4, the distance between the two ends of the electrode 3 can be accurately determined between 4mm-5mm to achieve the specified technical indicators; finally, after adjusting the distance of the electrode 3, tighten the fixing screws of the electrode base 1 with an Allen wrench, and then install the electrode base 1 back to the original auxiliary gap discharge box, and the adjustment is completed.

[0032] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for visually adjusting the gap of a direct-reading spectrometer, characterized in that: The invention comprises a cylindrical hollow tube body (2) located between upper and lower electrode bases (1), wherein electrodes (3) distributed up and down are covered in the cylindrical hollow tube body (2); a radial semicircular groove (2-1) is provided at the middle position of the outer wall of the cylindrical hollow tube body (2), and a pie-shaped positioning mark body (4) matching the radial semicircular groove (2-1) is provided in the radial semicircular groove (2-1); the pie-shaped positioning mark body (4) comprises a main body of a columnar structure, a radial staggered portion matching the radial semicircular groove (2-1) is provided at the front end of the main body, and a handle is provided at the rear end of the main body; a symmetrically distributed central pit (4-1) is provided at the center position of the main body, and the tips of the upper and lower electrodes (3) are located in the central pit (4-1).

2. The device for visually adjusting the gap of a direct-reading spectrometer according to claim 1, characterized in that: The inner diameter of the cylindrical hollow tube (2) is consistent with the outer diameter of the electrode base (1).

3. The device for visually adjusting the gap of a direct-reading spectrometer according to claim 1, characterized in that: The height of the cylindrical hollow tube (2) is consistent with the height of the middle discharge chamber of the auxiliary gap discharge box.

4. The device for visually adjusting the gap of a direct-reading spectrometer according to claim 1, characterized in that: The thickness of the pie-shaped positioning mark body (4) is consistent with the width of the radial semicircular groove (2-1).

5. The device for visually adjusting the gap of a direct-reading spectrometer according to claim 1, characterized in that: The front end of the radial offset is consistent with the inner diameter of the cylindrical hollow tube (2); the rear end of the radial offset is consistent with the outer diameter of the cylindrical hollow tube (2).

6. The device for visually adjusting the gap of a direct-reading spectrometer according to claim 1, characterized in that: The depth of the central pit (4-1) is 0.5 mm.

7. The device for visually adjusting the auxiliary gap of a direct-reading spectrometer according to claim 1, characterized in that: The thickness of the pancake-shaped positioning marker (4) is 5 mm.

8. The device for visually adjusting the auxiliary gap of a direct-reading spectrometer according to claim 1, characterized in that: The coaxiality of the electrode (3) and the central pit (4-1) is consistent.

9. The device for visually adjusting the gap of a direct-reading spectrometer according to claim 1, characterized in that: The distance between the electrodes (3) distributed up and down is 4 to 5 mm.

10. The device for visually adjusting the gap of a direct-reading spectrometer according to claim 1, characterized in that: The cylindrical hollow tube (2) and the pancake-shaped positioning mark (4) are both made of transparent acrylic material.

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