High performance liquid chromatograph

Abstract

The utility model discloses a high performance liquid chromatograph, which relates to the technical field of liquid chromatographs and comprises an automatic sampler, a supporting groove is fixedly mounted in the automatic sampler, two fixing grooves are fixedly mounted on two sides of the interior of the supporting groove, two connecting plates are fixedly mounted on two sides of the top of the supporting groove, and the two fixing grooves are fixedly mounted on two sides of the top of the supporting groove. Two telescopic rods are fixedly installed on the two sides of the top of the connecting plate, a supporting frame is fixedly installed on the tops of the telescopic rods, a lower pressing plate is fixedly installed at the bottom of the supporting frame, and an extraction hole is fixedly formed in the lower pressing plate. According to the high performance liquid chromatograph, by pulling a pulling plate, a placing groove can move outwards through two sliding devices, so that the placing groove is pulled out, a sample bottle needing to be placed is placed in a placing hole in the placing groove, the pulling plate is pushed to push the placing groove back, and the bottom of the sample bottle can be protected through sponge in a connecting groove.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid chromatographs, in particular to a high performance liquid chromatograph. Background Art

[0002] High Performance Liquid Chromatography (HPLC) is an instrument that uses the principle of high performance liquid chromatography and is mainly used to analyze organic compounds with high boiling points, low volatility, thermal instability, and large molecular weight. It consists of a liquid reservoir, pump, injector, chromatographic column, detector, recorder, etc. Most of the current high performance liquid chromatographs (HPLC) are imported equipment.

[0003] The existing referenceable Chinese utility model patent with announcement number CN216082619U discloses a high performance liquid chromatograph, including a protective frame, the upper end hinge of the protective frame is connected with a cover plate, a storage slot is arranged on the protective frame, a chromatograph body is slidingly arranged inside the storage slot, a detection slot is installed on the chromatograph body, a spiral water inlet channel is arranged inside the detection slot, a water storage chamber is arranged inside the chromatograph body, a water pump is installed inside the water storage chamber, a delivery pipe is connected to the water outlet of the water pump, the upper end of the delivery pipe is connected to the upper end of the spiral water inlet channel, the lower end of the spiral water inlet channel is connected to a downpipe, and the lower end of the downpipe is connected to the water storage chamber. The detection slot of the utility model is cooled by cooling liquid flowing into the spiral water inlet channel, which can avoid the detection accuracy reduction caused by heating of the detection slot; when the chromatograph body is not in use, it is stored inside the storage slot of the protective frame, and it can be protected by the protective frame to avoid damage caused by bumps.

[0004] The existing high performance liquid chromatograph uses an automatic sampler to sample and test materials during use. However, the existing automatic sampler is inconvenient to place samples and is not convenient for fixing samples. Therefore, during automatic sampling, the automatic sampling needle is not convenient to be inserted into the sample for sampling. Utility Model Content

[0005] The utility model aims to overcome the problem in the prior art that it is inconvenient to fix and clamp samples, and provides a high performance liquid chromatograph.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high performance liquid chromatograph, comprising:

[0008] An automatic sampler, wherein a support groove is fixedly installed inside the automatic sampler, two fixing grooves are fixedly installed on both sides of the support groove, two connecting plates are fixedly installed on both sides of the top of the support groove, two telescopic rods are fixedly installed on both sides of the top of the connecting plate, a support frame is fixedly installed on the top of the telescopic rod, and the support frame is in an "L" shape, a lower pressure plate is fixedly installed at the bottom of the support frame, an extraction hole is fixedly installed inside the lower pressure plate, a sliding device is fixedly installed inside the fixed groove, a placement groove is fixedly installed on one side of the sliding device, a placement hole is fixedly installed inside the placement groove, a connecting groove is fixedly installed at the bottom of the placement groove, a sponge is fixedly installed at the bottom of the connecting groove, and a pulling plate is fixedly installed on one side of the connecting groove.

[0009] In a preferred embodiment, a control panel is fixedly mounted on one side of the automatic sampler, and a quaternary pump is fixedly mounted on the top of the automatic sampler.

[0010] In a preferred embodiment, a vacuum degassing pump is fixedly installed on the top of the quaternary pump, and a solvent bottle box is fixedly installed on the top of the vacuum degassing pump.

[0011] In a preferred embodiment, a column oven is fixedly installed at the bottom of the automatic sampler, and a detector is fixedly installed at the bottom of the column oven.

[0012] In a preferred embodiment, a mounting shaft is fixedly mounted on the other side of the automatic sampler, and a cover plate is fixedly mounted on one side of the mounting shaft, wherein the cover plate is a covering structure.

[0013] In a preferred embodiment, a handle is fixedly mounted on one side of the cover plate, and a connecting shaft is fixedly mounted on the top of one side of the cover plate, wherein the connecting shaft is a structure for rotation.

[0014] In a preferred embodiment, a support plate is fixedly mounted on one side of the connecting shaft, and a buckle is fixedly mounted on the top of one side of the support plate, and the buckle is a structure for clamping paper.

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

[0016] 1. The high performance liquid chromatograph can pull the pulling plate to move the placement slot outward through two sliding devices, so as to pull out the placement slot, place the sample bottle to be placed in the placement hole inside the placement slot, push the pulling plate to push the placement slot back, and protect the bottom of the sample bottle by connecting the sponge inside the slot, thereby improving the convenience and practicality of placing the high performance liquid chromatograph;

[0017] 2. The high performance liquid chromatograph can drive the support frame to move downward by contracting the telescopic rod, so that the lower pressure plate moves downward, thereby covering the top of the sample bottle placed inside the placement slot, so that the sample bottle can be leveled and the sample bottle can be stabilized at the same time. The automatic sampling needle can extract the sample inside the sample bottle through the extraction hole in the lower pressure plate, avoiding the problem of inconvenient extraction, thereby improving the convenience of the high performance liquid chromatograph. The paper is clamped by the buckle and supported by the support plate, thereby facilitating the registration of the data and position of the sample placed inside the placement slot, thereby improving the practicality of the high performance liquid chromatograph. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the automatic sampler in the utility model;

[0020] Figure 3 It is a schematic diagram of the support groove in the utility model;

[0021] Figure 4 It is a schematic diagram of the sliding device in the utility model;

[0022] Figure 5 It is a schematic diagram of the installation shaft in the utility model.

[0023] 1. Automatic sampler; 11. Control panel; 12. Quaternary pump; 13. Vacuum degassing pump; 14. Solvent bottle box; 15. Column temperature box; 16. Detector; 2. Support slot; 21. Fixed slot; 22. Connecting plate; 23. Telescopic rod; 24. Support frame; 25. Lower pressure plate; 26. Extraction hole; 3. Sliding device; 31. Placement slot; 32. Placement hole; 33. Connecting slot; 34. Sponge; 35. Pulling plate; 4. Installing shaft; 41. Cover plate; 42. Handle; 43. Connecting shaft; 44. Support plate; 45. Buckle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Combined with Figure 1-5In this embodiment, a high performance liquid chromatograph includes: an automatic sampler 1, a control panel 11 is fixedly installed on one side of the automatic sampler 1, and a quaternary pump 12 is fixedly installed on the top of the automatic sampler 1.

[0026] A vacuum degassing pump 13 is fixedly installed on the top of the quaternary pump 12 , and a solvent bottle box 14 is fixedly installed on the top of the vacuum degassing pump 13 .

[0027] A column oven 15 is fixedly installed at the bottom of the automatic sampler 1 , and a detector 16 is fixedly installed at the bottom of the column oven 15 .

[0028] A support groove 2 is fixedly installed inside the automatic sampler 1, two fixed grooves 21 are fixedly installed on both sides of the inside of the support groove 2, two connecting plates 22 are fixedly installed on both sides of the top of the support groove 2, two telescopic rods 23 are fixedly installed on both sides of the top of the connecting plates 22, and a support frame 24 is fixedly installed on the top of the telescopic rod 23. The support frame 24 is in an "L" shape, and a lower pressure plate 25 is fixedly installed at the bottom of the support frame 24, and an extraction hole 26 is fixedly installed inside the lower pressure plate 25.

[0029] Specifically, the telescopic rod 23 can be supported by the connecting plate 22 , and the contraction of the telescopic rod 23 can drive the lower pressing plate 25 to move downward, so that the top of the placement groove 31 can be clamped, and the sample bottle can be extracted through the extraction hole 26 .

[0030] A sliding device 3 is fixedly installed inside the fixed groove 21, a placement groove 31 is fixedly installed on one side of the sliding device 3, a placement hole 32 is fixedly installed inside the placement groove 31, a connecting groove 33 is fixedly installed at the bottom of the placement groove 31, a sponge 34 is fixedly installed at the bottom of the connecting groove 33, and a pulling plate 35 is fixedly installed on one side of the connecting groove 33.

[0031] Specifically, the placement groove 31 can be moved by the sliding device 3 and pulled by the pulling plate 35 , the sample bottle can be placed through the placement hole 32 inside the placement groove 31 , and the bottom of the sample bottle can be buffered and protected by the sponge 34 .

[0032] A mounting shaft 4 is fixedly mounted on the other side of the automatic sampler 1 , and a cover plate 41 is fixedly mounted on one side of the mounting shaft 4 .

[0033] A handle 42 is fixedly mounted on one side of the cover plate 41 , and a connecting shaft 43 is fixedly mounted on the top of one side of the cover plate 41 .

[0034] A support plate 44 is fixedly mounted on one side of the connecting shaft 43 , and a buckle 45 is fixedly mounted on the top of one side of the support plate 44 .

[0035] Specifically, the paper can be fixed to one side of the support plate 44 by the buckle 45, so as to facilitate the registration of the sample bottles placed inside the placement slot 31, and the mounting shaft 4 can be driven to rotate by pulling the handle 42, and the support plate 44 can be driven to rotate by the connecting shaft 43.

[0036] Working principle: First, by pulling the handle 42, the cover plate 41 can be opened by rotating the mounting shaft 4, and the pulling plate 35 can be pulled so that the placement slot 31 can be moved by sliding the two sliding devices 3, thereby driving the placement slot 31 to move outward, and the sample bottle to be placed is inserted into the placement hole 32 inside the placement slot 31, and the sample bottle is supported and clamped through the placement hole 32, and the bottom of the sample bottle can be supported and wrapped by the sponge 34 inside the connecting slot 33, so as to achieve a protective effect, avoid the problem that the sample bottle is broken due to impact on the bottom when placing the sample bottle, improve the protection effect of the high performance liquid chromatograph, and facilitate the placement of samples of the high performance liquid chromatograph, thereby improving the practicality of the high performance liquid chromatograph, and push the pulling plate 35, so that the placement slot 31 can be pushed back into the support slot 2 through the movement of the two sliding devices 3. When the placement slot 31 is pushed back, the two connecting plates 22 on both sides of the top of the support slot 2 extend The contraction of the retracting rod 23 can drive the support frame 24 to move downward, so that the lower pressing plate 25 can move downward, so that the lower pressing plate 25 can cover the top of the placement groove 31, thereby clamping the sample bottle, avoiding the problem that the sample bottles are of different heights and are inconvenient for the automatic sampling needle to sample. The automatic sampling needle samples the sample bottle through the extraction hole 26 of the lower pressing plate 25. The clamping of the lower pressing plate 25 can improve the stability of the high performance liquid chromatograph, avoid the problem that the sample bottle shakes and affects the extraction when extracting the sample, and improve the practicality and convenience of the high performance liquid chromatograph. Push the handle 42, and close the cover plate 41 by rotating the mounting shaft 4. The record sheet can be clamped by the buckle 45. The record sheet can be supported by the support plate 44. The sample placed in the placement groove 31 can be registered through the record sheet, avoiding the error of sample information. The rotation of the connecting shaft 43 can drive the support plate 44 to rotate, thereby improving the practicality of the high performance liquid chromatograph.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high performance liquid chromatograph, characterized in that: The high performance liquid chromatograph comprises an automatic sampler (1), wherein a support groove (2) is fixedly installed inside the automatic sampler (1), two fixed grooves (21) are fixedly installed on both sides of the support groove (2), two connecting plates (22) are fixedly installed on both sides of the top of the support groove (2), two telescopic rods (23) are fixedly installed on both sides of the top of the connecting plate (22), a support frame (24) is fixedly installed on the top of the telescopic rod (23), the support frame (24) is in an "L" shape, and the bottom of the support frame (24) is fixedly installed. A lower pressing plate (25) is installed, an extraction hole (26) is fixedly installed inside the lower pressing plate (25), a sliding device (3) is fixedly installed inside the fixed groove (21), a placement groove (31) is fixedly installed on one side of the sliding device (3), a placement hole (32) is fixedly installed inside the placement groove (31), a connecting groove (33) is fixedly installed at the bottom of the placement groove (31), a sponge (34) is fixedly installed at the bottom of the connecting groove (33), and a pulling plate (35) is fixedly installed on one side of the connecting groove (33).

2. A high performance liquid chromatograph according to claim 1, characterized in that: A control panel (11) is fixedly mounted on one side of the automatic sampler (1), and a quaternary pump (12) is fixedly mounted on the top of the automatic sampler (1).

3. A high performance liquid chromatograph according to claim 2, characterized in that: A vacuum degassing pump (13) is fixedly installed on the top of the quaternary pump (12), and a solvent bottle box (14) is fixedly installed on the top of the vacuum degassing pump (13).

4. A high performance liquid chromatograph according to claim 3, characterized in that: A column oven (15) is fixedly mounted on the bottom of the automatic sampler (1), and a detector (16) is fixedly mounted on the bottom of the column oven (15).

5. A high performance liquid chromatograph according to claim 1, characterized in that: A mounting shaft (4) is fixedly mounted on the other side of the automatic sampler (1), and a cover plate (41) is fixedly mounted on one side of the mounting shaft (4).

6. A high performance liquid chromatograph according to claim 5, characterized in that: A handle (42) is fixedly mounted on one side of the cover plate (41), and a connecting shaft (43) is fixedly mounted on the top of one side of the cover plate (41).

7. A high performance liquid chromatograph according to claim 6, characterized in that: A support plate (44) is fixedly mounted on one side of the connecting shaft (43), and a buckle (45) is fixedly mounted on the top of one side of the support plate (44).

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