Chromatograph calibration device

Abstract

The utility model discloses a chromatographic instrument calibration device which comprises a chromatographic instrument main body, calibration structures are symmetrically arranged on the upper surface of the chromatographic instrument main body, and solvent bottles are symmetrically arranged on the inner sides of the calibration structures. The calibration structure is arranged at the top of the chromatograph in advance, the calibration structure has a telescopic function through cooperation of the inner rod and the outer rod, meanwhile, the circular groove base is arranged, a solvent bottle can be placed in the circular groove base, a circular hole plate is moved in a telescopic sliding mode, and calibration clamping is conducted through the circular hole plate and the circular groove base; the solvent bottle is fully calibrated and limited through the calibration structure, so that the accuracy and the stability when a sample is sucked can be ensured, the situation that the amount of the sample is too large or too small can be reduced, the problem that an analysis result deviates from a true value is avoided, and the accuracy of the analysis result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chromatograph calibration, and specifically relates to a chromatograph calibration device. Background Technique

[0002] A chromatograph is an analytical instrument widely used in fields such as chemistry, biology, medicine, and environment. It separates and analyzes different components in a fluid mixture to provide information about the substance composition and chemical properties. The calibration work of a chromatograph is an important link to ensure its accuracy and reliability. Calibration can be completed through physical means, including standard substance calibration, blank test, repeatability test, instrument performance test, etc.

[0003] Before using a chromatograph, it is indeed necessary to calibrate and limit the solvent bottle. This is because the chromatograph needs to suck samples through the solvent bottle. If the calibration and limitation are not done well, it will cause the chromatograph to suck too much or too little sample, thus affecting the accuracy and stability of the analysis results. This will affect the analysis results of the chromatograph. This may cause the results to deviate from the true value and affect the accurate judgment of the sample. For industries that rely on chromatograph results, such as pharmaceuticals, food, environmental monitoring, etc., it will mislead relevant decisions and lead to wrong actions and results. Therefore, we propose a chromatograph calibration device to ensure the accuracy and reliability of the chromatograph. Content of the Utility Model

[0004] The purpose of the utility model is to provide a chromatograph calibration device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A chromatograph calibration device includes a chromatograph main body, calibration structures are symmetrically arranged on the upper surface of the chromatograph main body, and solvent bottles are symmetrically arranged inside the calibration structures.

[0006] Preferably, the calibration structure includes outer rods. The number of the outer rods is two, and they are symmetrically arranged vertically. The lower surface of the outer rods is fixedly connected to the upper surface of the chromatograph main body. Side rods are symmetrically and fixedly connected to the outer walls of the outer rods. The other ends of the side rods are fixedly connected to round groove bases. The lower surface of the round groove bases is fixedly connected to the upper surface of the chromatograph main body. The inner cavities of the round groove bases are sleeved with the bottoms of the solvent bottles. Inner rods are sleeved in the inner cavities of the outer rods. The tops of the inner rods are fixedly connected to round hole plates. The inner cavities of the round hole plates are sleeved with the tops of the solvent bottles. A counterweight is fixedly connected to the center of the upper surface of the round hole plate.

[0007] Preferably, it further includes a limiting structure, and the limiting structure is fixedly assembled on the front side wall of the round hole plate and is symmetrically arranged horizontally.

[0008] Preferably, the limiting structure includes a frame, the rear side wall of the frame is fixedly connected to the front side wall of the round hole plate, a pin shaft is installed between the inner side walls of the frame, a semi-circular ring is installed on the outer wall of the pin shaft, the semi-circular ring is rotationally connected to the frame through the pin shaft, and the other end of the semi-circular ring is fixedly connected with a magnet block.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: Before using the chromatograph, a calibration structure is preset at the top of the chromatograph. Through the cooperation of the inner rod and the outer rod, the calibration structure has a telescopic function. At the same time, a round groove base is provided, in which the solvent bottle can be placed. By telescopically sliding the round hole plate, the round hole plate is calibrated and clamped with the round groove base. At the same time, a limiting structure is arranged on the surface of the calibration structure, and a magnet block is arranged at one end of the limiting structure. By rotating the semi-circular ring through the pin shaft to magnetically attract the round hole plate, the infusion pipeline of the solvent bottle can be limited. Through the calibration structure, the solvent bottle is fully calibrated and limited, which can ensure the accuracy and stability when sucking samples, help reduce the situation of too much or too little sample volume, thus avoiding the problem that the analysis result deviates from the true value, and improving the accuracy of the analysis result. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic structural diagram of the present utility model;

[0011] Figure 2 is Figure 1 a three-dimensional detailed view of the calibration structure in

[0012] Figure 3 is Figure 1 a three-dimensional detailed view of the limiting structure in

[0013] In the figure: 1, chromatograph main body; 2, calibration structure; 21, outer rod; 22, side rod; 23, round groove base; 24, inner rod; 25, round hole plate; 26, counterweight; 3, limiting structure; 31, frame; 32, pin shaft; 33, semi-circular ring; 34, magnet block; 4, solvent bottle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] Please refer to Figures 1-3, the present utility model provides a chromatograph calibration device, including a chromatograph main body 1, calibration structures 2 symmetrically arranged on the upper surface of the chromatograph main body 1, and solvent bottles 4 symmetrically arranged inside the calibration structures 2.

[0016] The calibration structure 2 includes outer rods 21. The number of outer rods 21 is two, and they are symmetrically arranged vertically. The lower surface of the outer rods 21 is fixedly connected to the upper surface of the chromatograph main body 1. Side rods 22 are symmetrically and fixedly connected to the outer walls of the outer rods 21. The other ends of the side rods 22 are fixedly connected to circular groove bases 23. The lower surface of the circular groove bases 23 is fixedly connected to the upper surface of the chromatograph main body 1. The inner cavities of the circular groove bases 23 are sleeved with the bottoms of the solvent bottles 4. Inner rods 24 are sleeved in the inner cavities of the outer rods 21. The tops of the inner rods 24 are fixedly connected to circular hole plates 25. The inner cavities of the circular hole plates 25 are sleeved with the tops of the solvent bottles 4. A counterweight 26 is fixedly connected to the center of the upper surface of the circular hole plate 25.

[0017] It further includes a limiting structure 3. The limiting structure 3 is fixedly assembled on the front side wall of the circular hole plate 25 and is symmetrically arranged horizontally.

[0018] The limiting structure 3 includes a frame 31. The rear side wall of the frame 31 is fixedly connected to the front side wall of the circular hole plate 25. A pin shaft 32 is installed between the inner side walls of the frame 31. A semi-circular ring 33 is installed on the outer wall of the pin shaft 32. The semi-circular ring 33 is rotationally connected to the frame 31 through the pin shaft 32. A magnet block 34 is fixedly connected to the other end of the semi-circular ring 33.

[0019] Working principle: Before using the chromatograph main body 1, the calibration structure 2 is preset on the top of the chromatograph main body 1. The calibration structure 2 is symmetrically arranged. The solvent bottle 4 is calibrated and limited through the calibration structure 2. When in use, first pull up the circular hole plate 25. The circular hole plate 25 slides in the inner cavity of the outer rod 21 through the inner rod 24 at the bottom, raising the height of the circular hole plate 25. The bottom of the outer rod 21 is connected to the chromatograph main body 1, and circular groove bases 23 are arranged on both sides. The circular groove bases 23 are connected to the outer rod 21 through side rods 22. Then, place the solvent bottle 4 in the inner cavity of the circular groove base 23, and then reset the inner rod 24 and the outer rod 21. There are circular holes on both sides of the circular hole plate 25, and the circular holes of the circular hole plate 25 will fit and sleeve with the top of the solvent bottle 4. At the same time, a counterweight 26 is arranged on the top of the circular hole plate 25, applying a downward pressure to the circular hole plate 25 to make the placement of the solvent bottle 4 more stable, providing a calibration function for the solvent bottle 4. At the same time, a limiting structure 3 is arranged on the front side of the calibration structure 2. The limiting structure 3 is connected to the circular hole plate 25 through the frame 31. The frame 31 rotates the semi-circular ring 33 through the pin shaft 32. A magnet block 34 is arranged at the other end of the semi-circular ring 33. Through the closed semi-circular ring 33, the other end magnet block 34 will adsorb to the circular hole plate 25, and the infusion pipeline of the solvent bottle 4 can be limited. The solvent bottle 4 is fully calibrated and limited through the calibration structure 2 and the limiting structure 3 to ensure the accuracy and stability when sucking samples.

[0020] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chromatograph calibration device, characterized in that: It includes a chromatograph main body (1), calibration structures (2) are symmetrically arranged on the upper surface of the chromatograph main body (1), and solvent bottles (4) are symmetrically arranged inside the calibration structures (2); The calibration structure (2) includes outer rods (21), the number of the outer rods (21) is two, and they are symmetrically arranged vertically. The lower surface of the outer rods (21) is fixedly connected to the upper surface of the chromatograph main body (1). Side rods (22) are symmetrically and fixedly connected to the outer walls of the outer rods (21). The other ends of the side rods (22) are fixedly connected to round groove bases (23). The lower surface of the round groove bases (23) is fixedly connected to the upper surface of the chromatograph main body (1). The inner cavity of the round groove bases (23) is sleeved with the bottom of the solvent bottle (4). Inner rods (24) are sleeved in the inner cavities of the outer rods (21). The top ends of the inner rods (24) are fixedly connected to round hole plates (25). The inner cavities of the round hole plates (25) are sleeved with the tops of the solvent bottles (4). A counterweight block (26) is fixedly connected to the center of the upper surface of the round hole plates (25).

2. The chromatograph calibration device according to claim 1, characterized in that: It further includes a limiting structure (3), and the limiting structure (3) is fixedly assembled on the front side wall of the round hole plate (25) and is symmetrically arranged horizontally.

3. The chromatograph calibration device according to claim 2, characterized in that: The limiting structure (3) includes a frame (31). The rear side wall of the frame (31) is fixedly connected to the front side wall of the round hole plate (25). A pin shaft (32) is installed between the inner side walls of the frame (31). A semi-circular ring (33) is installed on the outer wall of the pin shaft (32). The semi-circular ring (33) is rotationally connected to the frame (31) through the pin shaft (32). The other end of the semi-circular ring (33) is fixedly connected to a magnet block (34).

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