High performance liquid chromatography detection auxiliary device for organic impurities

Abstract

The utility model discloses a high performance liquid chromatography detection auxiliary device for organic impurities, which comprises a detection table and a liquid chromatograph main body, the liquid chromatograph main body is positioned at the top of the detection table, and a fixing component is arranged at the top end of the detection table; the fixing assembly comprises a clamp clamped at one end of the detection table, the bottom of the clamp is fixedly connected with a nut, and the top side of the detection table is provided with a lifting assembly; the lifting assembly comprises a dustproof box fixed to the top of the detection table, the inner side of the dustproof box is rotatably connected with a lead screw, the outer wall of the lead screw is slidably connected with a lead screw sliding table, one side of the lead screw sliding table is provided with a second motor, the top of the second motor is rotatably connected with a rotating arm, and one side of the rotating arm is provided with a storage assembly; the containing assembly comprises a containing box fixedly connected with one side of the rotating arm, and a solvent bottle is arranged in the containing box. According to the device, the solvent bottle can be conveniently taken while the occupied space for placing the solvent bottle is controlled, and the device is suitable for being used by workers with different heights.

Description

Technical Field

[0001] This utility model relates to the field of organic impurity detection technology, specifically to an auxiliary device for high-performance liquid chromatography detection of organic impurities. Background Technology

[0002] Organic impurity detection refers to the process of identifying and quantifying organic impurities present in various samples (such as pharmaceuticals, food, and environmental samples). These impurities may include unreacted starting materials, byproducts, degradation products, and other compounds that may affect product quality or safety.

[0003] Organic impurity detection technology includes chromatography, which requires the use of high-performance liquid chromatography (HPLC). Therefore, a liquid chromatograph is needed. Currently, most liquid chromatographs require solutions to be placed on top of the instrument, which is usually placed on a table. This height makes it inconvenient for shorter staff to reach the solution bottles, so improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary device for high-performance liquid chromatography (HPLC) detection of organic impurities, in order to solve the problem mentioned in the background art that the solution bottle is placed on top of the HPLC detector and is inconvenient to access.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary device for high-performance liquid chromatography (HPLC) detection of organic impurities, comprising a detection stage and a liquid chromatograph body, wherein the liquid chromatograph body is located on top of the detection stage, and a lifting assembly is provided on the top side of the detection stage;

[0006] The lifting assembly includes a dustproof box fixed to the top of the testing table, a lead screw rotatably connected to the inside of the dustproof box, a lead screw slide slidably connected to the outer wall of the lead screw, a second motor on one side of the lead screw slide, a rotating arm rotatably connected to the top of the second motor, and a storage assembly on one side of the rotating arm.

[0007] The storage assembly includes a placement box fixedly connected to one side of the rotating arm, and a solvent bottle is placed inside the placement box. The solvent bottle is connected to the main body of the liquid chromatograph via a pipe.

[0008] Preferably, a fixing component is provided at the top of the testing station;

[0009] The fixing component includes a clamp that is snapped into one end of the testing table, and a nut is fixedly connected to the bottom of the clamp.

[0010] Preferably, the nut is internally threaded with an adjusting screw, one end of which passes through the clamp and is located inside the clamp. The top end of the adjusting screw is rotatably connected to a clamping plate, which is attached to the bottom of the testing table.

[0011] Preferably, the dustproof box has an opening on one side, and a fixing seat is fixedly connected to the inner wall of the dustproof box.

[0012] Preferably, a lead screw is rotatably connected to the inner side of the fixed base, and a first motor is installed at the bottom of the fixed base. The shaft of the first motor is connected to one end of the lead screw through a coupling.

[0013] Preferably, a limiting rod is fixedly connected to the inner side of the fixed seat. The limiting rod is located at one end of the lead screw and is inserted into the lead screw slide. The lead screw slide and the limiting rod form a sliding connection.

[0014] Preferably, one end of the placement box is rotatably connected to a door, and a limit plate is provided inside the placement box. A through hole is opened on the limit plate, and a solvent bottle is inserted into the through hole. The limit plate is made of rubber.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) This device can control the space occupied by the solvent bottle while making it easy to pick up the solvent bottle, and is suitable for use by staff of different heights.

[0017] (2) This device has a dustproof box on one side of the liquid chromatograph. The dustproof box is equipped with an automatic lifting screw. The lifting of the screw can drive the placement box to rise and fall, so that the staff can take out the solvent bottle inside the placement box after the placement box is lowered, thus making it more convenient to use.

[0018] (3) This device places the lifting assembly on one side of the liquid chromatograph and places the placement box connected to the lifting assembly on the top of the liquid chromatograph, which can reduce the space occupied while facilitating the lifting of the placement box. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an auxiliary device for high-performance liquid chromatography detection of organic impurities according to the present invention.

[0020] Figure 2 This is a cross-sectional view of the dustproof box of the high-performance liquid chromatography auxiliary device for detecting organic impurities according to this utility model;

[0021] Figure 3 This invention relates to an auxiliary device for the detection of organic impurities using high-performance liquid chromatography. Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a side view of the connection between the clamp and the detection stage of the high-performance liquid chromatography (HPLC) auxiliary device for detecting organic impurities according to this utility model.

[0023] Figure 5This is a cross-sectional view of the placement box of the high-performance liquid chromatography auxiliary device for detecting organic impurities according to this utility model.

[0024] In the diagram: 1. Storage component; 11. Placement box; 12. Door; 13. Solvent bottle; 14. Limiting plate; 2. Lifting component; 21. Dustproof box; 22. Lead screw; 23. First motor; 24. Rotating arm; 25. Fixed base; 26. Limiting rod; 27. Second motor; 28. Lead screw slide; 3. Liquid chromatograph body; 4. Detection stage; 5. Fixing component; 51. Clamp; 52. Adjusting screw; 53. Nut; 54. Clamping plate. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-5This utility model provides a technical solution: an auxiliary device for high-performance liquid chromatography (HPLC) detection of organic impurities, including a detection stage 4 and an HPLC main body 3. The HPLC main body 3 is located on top of the detection stage 4. A fixing component 5 is provided at the top of the detection stage 4. The fixing component 5 includes a clamp 51 that is clamped to one end of the detection stage 4. A nut 53 is fixedly connected to the bottom of the clamp 51. An adjusting screw 52 is threadedly connected inside the nut 53. One end of the adjusting screw 52 passes through the clamp 51 and is located inside the clamp 51. A clamping plate 54 is rotatably connected to the top of the adjusting screw 52. The clamping plate 54 is attached to the bottom of the detection stage 4. This structure allows the height of the clamping plate 54 to be adjusted by rotating the adjusting screw 52, ​​facilitating contact between the clamping plate 54 and the bottom of the detection stage 4, thus fixing the clamping plate 51 in place. On the testing platform 4, a lifting assembly 2 is installed on the top side of the testing platform 4. The lifting assembly 2 includes a dustproof box 21 fixed to the top of the testing platform 4. The dustproof box 21 has an opening on one side, and a fixed seat 25 is fixedly connected to the inner wall of the dustproof box 21. This structure of the dustproof box 21 can provide a certain degree of dust protection for the lead screw 22. The lead screw 22 is rotatably connected to the inner side of the fixed seat 25, and a first motor 23 is installed at the bottom of the fixed seat 25. The shaft of the first motor 23 is connected to one end of the lead screw 22 through a coupling. This structure allows the first motor 23 to drive the lead screw 22 to rotate, which facilitates the lead screw 22 to drive the rotating arm 24 to perform linear motion. The first motor 23, lead screw 22, fixed seat 25, lead screw slide 28, and limit rod 26 of this device combine to form a reciprocating lead screw. The type can be a self-locking reciprocating lead screw, thereby ensuring the stability of the placement box 11. A limit rod 26 is fixedly connected to the inner side of the fixed base 25. The limit rod 26 is located at one end of the lead screw 22 and is inserted into the lead screw slide 28. The lead screw slide 28 and the limit rod 26 form a sliding connection. This structure can limit the rotation of the lead screw slide 28 by setting the limit rod 26, thereby realizing the linear movement of the lead screw slide 28. This part is existing technology, so it will not be described in detail here. The dust box 21 is rotatably connected to the inner side of the lead screw 22, and the lead screw slide 28 is slidably connected to the outer wall of the lead screw 22. A second motor 27 is set on one side of the lead screw slide 28. A rotating arm 24 is rotatably connected to the top of the second motor 27. A storage component 1 is set on one side of the rotating arm 24. The machine 27 can rotate the rotating arm 24 and the placement box 11 to facilitate the descent of the placement box 11 after it moves away from the top of the liquid chromatograph body 3. The storage assembly 1 includes a placement box 11 fixedly connected to one side of the rotating arm 24. A door 12 is rotatably connected to one end of the placement box 11. A limiting plate 14 is provided inside the placement box 11. The limiting plate 14 has a through hole, and a solvent bottle 13 is inserted into the through hole. The limiting plate 14 is made of rubber. This structure can improve the stability of the solvent bottle 13 through the limiting plate 14. Placing the solvent bottle 13 inside the placement box 11 can achieve a dustproof protection effect. The solvent bottle 13 is placed inside the placement box 11. The solvent bottle 13 is connected to the liquid chromatograph body 3 through a pipe, which is divided into two ends.The two ends are connected by threaded sleeves, which facilitates the separation of the pipe and prevents the pipe from affecting the lifting and lowering of the placement box 11.

[0027] Working principle: When using this high-performance liquid chromatography (HPLC) auxiliary device for detecting organic impurities, if it is necessary to place the solvent bottle 13 inside the placement box 11, or to remove the solvent bottle 13 from inside the placement box 11, the tubing connecting the HPLC main body 3 and the solvent bottle 13 can be separated first. Then, the second motor 27 drives the rotating arm 24 to rotate, causing the rotating arm 24 to move the placement box 11 away from the top of the HPLC main body 3. Next, the first motor 23 drives the lead screw 22 to rotate. During the rotation of the lead screw 22, the lead screw slide 28 rotates. Under the restriction of the limit rod 26, the lead screw slide 28 descends linearly, thereby lowering the height of the placement box 11. When the placement box 11 is at its lowest point, the operator can open the door 12 of the placement box 11 and then remove the solvent bottle 13 from inside the placement box 11.

[0028] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A high-performance liquid chromatography (HPLC) auxiliary device for detecting organic impurities, comprising a detection stage (4) and a liquid chromatograph body (3), wherein the liquid chromatograph body (3) is located on top of the detection stage (4), characterized in that: The top side of the testing platform (4) is provided with a lifting component (2); The lifting assembly (2) includes a dust box (21) fixed on the top of the testing table (4), a lead screw (22) is rotatably connected to the inside of the dust box (21), a lead screw slide (28) is slidably connected to the outer wall of the lead screw (22), a second motor (27) is provided on one side of the lead screw slide (28), a rotating arm (24) is rotatably connected to the top of the second motor (27), and a storage assembly (1) is provided on one side of the rotating arm (24). The storage component (1) includes a placement box (11) fixedly connected to one side of the rotating arm (24). A solvent bottle (13) is placed inside the placement box (11). The solvent bottle (13) is connected to the liquid chromatograph body (3) through a pipe.

2. The auxiliary device for high-performance liquid chromatography detection of organic impurities according to claim 1, characterized in that: A fixing component (5) is provided at the top of the testing station (4); The fixing component (5) includes a clamp (51) that is clipped to one end of the testing table (4), and a nut (53) is fixedly connected to the bottom of the clamp (51).

3. The auxiliary device for high-performance liquid chromatography detection of organic impurities according to claim 2, characterized in that: The nut (53) is internally threaded with an adjusting screw (52). One end of the adjusting screw (52) passes through the clamp (51) and is located inside the clamp (51). The top end of the adjusting screw (52) is rotatably connected to a clamping plate (54), which is attached to the bottom of the testing table (4).

4. The auxiliary device for high-performance liquid chromatography detection of organic impurities according to claim 1, characterized in that: The dust box (21) has an opening on one side, and a fixing seat (25) is fixedly connected to the inner wall of the dust box (21).

5. The auxiliary device for high-performance liquid chromatography detection of organic impurities according to claim 4, characterized in that: The fixed base (25) is rotatably connected to a lead screw (22), and a first motor (23) is installed at the bottom of the fixed base (25). The shaft of the first motor (23) is connected to one end of the lead screw (22) through a coupling.

6. The auxiliary device for high-performance liquid chromatography detection of organic impurities according to claim 4, characterized in that: The fixed seat (25) is fixedly connected to a limiting rod (26) on its inner side. The limiting rod (26) is located at one end of the lead screw (22). The limiting rod (26) is inserted into the lead screw slide (28). The lead screw slide (28) and the limiting rod (26) form a sliding connection.

7. The auxiliary device for high-performance liquid chromatography detection of organic impurities according to claim 1, characterized in that: One end of the placement box (11) is rotatably connected to a door (12). A limit plate (14) is provided inside the placement box (11). A through hole is provided on the limit plate (14), and a solvent bottle (13) is inserted into the through hole. The limit plate (14) is made of rubber.

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