Automatic flushing system of liquid chromatograph

Abstract

The utility model relates to the technical field of liquid chromatograph flushing, in particular to an automatic liquid chromatograph flushing system which comprises a liquid chromatograph body and a flushing box, a positioning groove is formed in one side of the liquid chromatograph body, an input pipe and an output pipe are arranged between the liquid chromatograph body and the positioning groove, and the liquid chromatograph body is connected with the flushing box. The top end of the flushing box is provided with a filter tank, the filter tank is provided with a first filter frame, the top end of the first filter frame is provided with a sealing plate, and the top end of the sealing plate is provided with a second filter frame. When the liquid chromatograph is cleaned, the water pump is started, the whole cleaning process can be automatically completed, the first filter frame can effectively filter impurities in flushing liquid, the second filter frame can effectively filter impurities in discharged liquid, it is ensured that the flushing liquid entering the liquid chromatograph is clean, and secondary pollution is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid chromatograph flushing technical field, concretely is a kind of liquid chromatograph automatic flushing system. BACKGROUND

[0002] It is known that as an important analytical instrument, liquid chromatograph is widely used in the separation and analysis of substances in the fields of chemistry, biology, medicine, food, etc. In daily use, the internal pipeline of liquid chromatograph will gradually accumulate dirt or residues due to impurities in the mobile phase and sample. These deposits not only can change the fluid dynamics characteristics of the pipeline, leading to problems such as retention time drift, poor peak shape, etc., but also can cause column efficiency to decrease, even block the pipeline, thereby affecting the accuracy and repeatability of experimental results. The traditional cleaning method mainly relies on manual operation, which usually requires disassembling some components of the instrument for cleaning. This method is time-consuming and labor-intensive, and requires a high level of technical skill from the operator. In addition, frequent disassembly and assembly can increase the risk of instrument damage, and it is also difficult to ensure that each cleaning can achieve the same effect. Due to the complexity of manual cleaning process, it is often not possible to achieve comprehensive and thorough cleaning, especially for some hard-to-reach areas, leaving dead angles and making the cleaning not thorough enough. In order to ensure the cleaning quality, manual cleaning often needs a long time to complete, which directly affects the efficiency of the laboratory, especially in a high-throughput detection environment, the time cost required for cleaning becomes more significant, so it is necessary to propose a solution to this technical problem. SUMMARY

[0003] (I) Technical problem solved

[0004] In view of the deficiencies of the prior art, the utility model provides a liquid chromatograph automatic flushing system.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a liquid chromatograph automatic flushing system, comprising a liquid chromatograph body and a flushing tank, one side of the liquid chromatograph body is provided with a positioning groove, an input pipe and an output pipe are arranged between the liquid chromatograph body and the positioning groove, a filter groove is formed at the top end of the flushing tank, a first filter frame is arranged on the filter groove, a sealing plate is arranged at the top end of the first filter frame, a second filter frame is arranged at the top end of the sealing plate, a sealing cover is arranged at the top end of the second filter frame, a butt joint hole is formed between one side of the first filter frame and the second filter frame and the flushing tank, a drain pipe and a water pump are arranged on the flushing tank, the drain pipe is connected to the first filter frame, the water pump is connected to the second filter frame, a splicing mechanism and a positioning mechanism are arranged between the flushing tank and the positioning groove.

[0007] Further, the utility model improves, the splicing mechanism includes clamping slot and fastening hole, clamping slot sets up in the bottom of flushing case, fastening hole sets up in the bottom of positioning groove, the bottom of fastening hole is equipped with fastening groove, be equipped with inclined plate on fastening hole, the bottom of inclined plate is equipped with fastening plate, be equipped with elastic part between fastening plate and the bottom of fastening groove, one end of clamping slot is equipped with sliding slot, be equipped with sliding plate on sliding slot, be equipped with limiting mechanism between sliding plate and sliding slot.

[0008] Further, the utility model improves, the limiting mechanism includes limit groove and limit block, limit groove sets up in one side of sliding slot, limit block is located in limit groove and is connected sliding plate.

[0009] Further, the utility model improves, the limiting mechanism is equipped with two and symmetrically sets up.

[0010] Further, the utility model improves, the positioning mechanism includes positioning hole and locating block, positioning hole sets up in one side of positioning groove, locating block is located in positioning hole and is connected flushing case.

[0011] Further, the utility model improves, the positioning hole and locating block are all T-shaped structure.

[0012] Further, the utility model improves, the top of sealing cover is equipped with handle.

[0013] Further, the utility model improves, the bottom of sealing cover is equipped with sealing strip.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the utility model provides a kind of liquid chromatograph automatic flushing system, with following beneficial effects:

[0016] The automatic flushing system of the liquid chromatograph realizes automatic flushing of the internal pipeline of the liquid chromatograph through the flushing box, the user only needs to open the related valves of the pipeline and start the water pump, and the whole cleaning process can be automatically completed without manual intervention, the existing automatic on-off valve technology is used, the operation becomes simple and intuitive, the professional skill requirement for the operator is reduced, the easy-to-use property of the system is improved, the design of the first filter frame and the second filter frame can effectively filter impurities in the flushing liquid, ensure that the flushing liquid entering the internal pipeline of the liquid chromatograph is clean, prevent secondary pollution, the filtered liquid is sent into the internal pipeline of the liquid chromatograph through the input pipe for flushing, and then is discharged through the output pipe, so that the cleaning effect and completeness are improved, when the first filter frame and the second filter frame accumulate too many impurities to affect the flow rate, the flushing box can be easily taken down for cleaning through the splicing mechanism and the positioning mechanism, and the design simplifies the maintenance process and reduces downtime caused by maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Structure of the utility model Figure 1 ;

[0018] Figure 2 Structure of the utility model Figure 2 ;

[0019] Figure 3 Flushing box of the utility model Figure 1 Enlarged structure front half sectional view of

[0020] Figure 4 Liquid chromatograph body of the utility model Figure 1 Enlarged structure front half sectional view of

[0021] In the drawing: 1, liquid chromatograph body; 2, flushing box; 3, input pipe; 4, output pipe; 5, first filter frame; 6, second filter frame; 7, sealing cover; 8, drain pipe; 9, water pump; 10, clamping groove; 11, inclined plate; 12, fastening plate; 13, elastic component; 14, sliding plate; 15, limiting block; 16, positioning hole; 17, positioning block; 18, handle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer toFigures 1-4 The utility model discloses a kind of automatic flushing systems of liquid chromatograph, including liquid chromatograph body 1 and flushing box 2, the side of the liquid chromatograph body 1 is equipped with positioning groove, input pipe 3 and output pipe 4 are equipped between the liquid chromatograph body 1 with the positioning groove, the top of the flushing box 2 is equipped with filter groove, first filter frame 5 is equipped on the filter groove, the top of the first filter frame 5 is equipped with sealing plate, the top of the sealing plate is equipped with second filter frame 6, the top of the second filter frame 6 is equipped with sealing cover 7, the side of the first filter frame 5 and the second filter frame 6 is equipped with docking hole between the flushing box 2, the flushing box 2 is equipped with drain pipe 8 and water pump 9, the drain pipe 8 is connected with the first filter frame 5, the water pump 9 is connected with the second filter frame 6, splicing mechanism and positioning mechanism are equipped between the flushing box 2 with the positioning groove, in the embodiment, first filter frame 5 is placed on filter groove, second filter frame 6 is aligned with one end of water pump 9 at this time, first filter frame 5 and second filter frame 6 are separated by sealing plate, filter groove is sealed by sealing cover 7, flushing box 2 is docked in positioning groove at this time, input pipe 3 is inserted into the docking hole in the side of second filter frame 6, output pipe 4 is inserted into the docking hole in the side of first filter frame 5, flushing box 2 is positioned in positioning groove by positioning mechanism, flushing box 2 is fastened in positioning groove by splicing mechanism, relevant valve of liquid chromatograph body 1 is opened, automatic on-off valve is common technique in existing liquid chromatograph body 1 pipeline, not detailed in this structure, water supply pipe is connected by using water pump 9, then water pump 9 delivers flushing liquid to second filter frame 6 to filter impurities in liquid, then input pipe 3 enters the pipeline inside liquid chromatograph body 1, to realize flushing to the pipeline inside liquid chromatograph body 1, liquid is discharged by output pipe 4, impurities in discharged liquid are filtered by first filter frame 5, then discharged by drain pipe 8, to realize automatic flushing operation, after long-term flushing operation, first filter frame 5 and second filter frame 6 will accumulate more impurities to affect liquid flow rate, at this time, flushing box 2 is taken out from positioning groove by splicing mechanism and positioning mechanism, input pipe 3 and output pipe 4 are away from the docking hole in corresponding position at this time, to lift sealing cover 7, first filter frame 5 and second filter frame 6 can be taken out to clean impurities, convenient to use,

[0024] In the scheme, the splicing mechanism includes a clamping groove 10 and a fastening hole, the clamping groove 10 is arranged at the bottom end of the washing tank 2, the fastening hole is arranged at the bottom end of the positioning groove, the bottom end of the fastening hole is provided with a fastening groove, the fastening hole is provided with an inclined plate 11, the bottom end of the inclined plate 11 is provided with a fastening plate 12, the fastening plate 12 and the bottom end of the fastening groove are provided with an elastic component 13, one end of the clamping groove 10 is provided with a sliding groove, the sliding groove is provided with a sliding plate 14, the sliding plate 14 and the sliding groove are provided with a limiting mechanism, when the washing tank 2 is inserted into the positioning groove, the inclined plate 11 is extruded downward by the washing tank 2, the elastic component 13 is extruded and shrunk by the fastening plate 12, when the washing tank 2 is abutted against the positioning groove, the inclined plate 11 is aligned with the clamping groove 10, the inclined plate 11 is abutted against the clamping groove 10 by the elastic supporting force of the elastic component 13, so that the washing tank 2 is fixed in the positioning groove, when the washing tank 2 needs to be removed, the sliding plate 14 is pushed, the sliding plate 14 contacts and pushes the inclined plate 11, so that the inclined plate 11 is away from the clamping groove 10, and then the washing tank 2 is removed.

[0025] In the scheme, the limiting mechanism includes a limiting groove and a limiting block 15, the limiting groove is arranged at one side of the sliding groove, and the limiting block 15 is located in the limiting groove and connected with the sliding plate 14, the limiting block 15 in the limiting groove can limit the sliding plate 14, and the sliding plate 14 is separated from the sliding groove.

[0026] In the scheme, the limiting mechanism is provided with two and symmetrically arranged, the two and symmetrically arranged limiting mechanisms can stably limit the sliding plate 14.

[0027] In the scheme, the positioning mechanism includes a positioning hole 16 and a positioning block 17, the positioning hole 16 is arranged at one side of the positioning groove, and the positioning block 17 is located in the positioning hole 16 and connected with the washing tank 2, the positioning block 17 is inserted into the positioning hole 16, so that the washing tank 2 is positioned in the positioning groove.

[0028] In the scheme, the positioning hole 16 and the positioning block 17 are both in T-shaped structure, the positioning hole 16 and the positioning block 17 in T-shaped structure can facilitate the positioning block 17 to be abutted against the positioning hole 16.

[0029] In the scheme, the top end of the sealing cover 7 is provided with a handle 18, the handle 18 can facilitate lifting and using the sealing cover 7.

[0030] In the scheme, the bottom end of the sealing cover 7 is provided with a sealing strip, the sealing strip can improve the sealing performance between the sealing cover 7 and the filtering groove.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic washing system for a liquid chromatograph comprising a liquid chromatograph body (1) and a washing tank (2), characterized in that, The side of the liquid chromatograph body (1) is provided with a positioning groove, the liquid chromatograph body (1) and the positioning groove are provided with an input pipe (3) and an output pipe (4), the top end of the flushing box (2) is provided with a filter groove, the filter groove is provided with a first filter frame (5), the top end of the first filter frame (5) is provided with a sealing plate, the top end of the sealing plate is provided with a second filter frame (6), the top end of the second filter frame (6) is provided with a sealing cover (7), the side of the first filter frame (5) and the second filter frame (6) is provided with a butt joint hole between the flushing box (2), the flushing box (2) is provided with a drain pipe (8) and a water pump (9), the drain pipe (8) is communicated with the first filter frame (5), the water pump (9) is communicated with the second filter frame (6), the flushing box (2) and the positioning groove are provided with a splicing mechanism and a positioning mechanism.

2. The automatic flush system for a liquid chromatograph according to claim 1, wherein, The splicing mechanism includes a clamping groove (10) and a fastening hole, the clamping groove (10) is arranged at the bottom end of the flushing box (2), the fastening hole is arranged at the bottom end of the positioning groove, the bottom end of the fastening hole is provided with a fastening groove, the fastening hole is provided with an inclined plate (11), the bottom end of the inclined plate (11) is provided with a fastening plate (12), the fastening plate (12) and the bottom end of the fastening groove are provided with an elastic member (13), one end of the clamping groove (10) is provided with a sliding groove, the sliding groove is provided with a sliding plate (14), the sliding plate (14) and the sliding groove are provided with a limiting mechanism.

3. The automatic flush system for a liquid chromatograph of claim 2, wherein, The limiting mechanism includes a limiting groove and a limiting block (15), the limiting groove is arranged at one side of the sliding groove, and the limiting block (15) is located in the limiting groove and connected with the sliding plate (14).

4. The automatic flush system for a liquid chromatograph of claim 3, wherein, The limiting mechanism is provided with two and is symmetrically arranged.

5. The automatic flush system for a liquid chromatograph of claim 4, wherein, The positioning mechanism includes a positioning hole (16) and a positioning block (17), the positioning hole (16) is arranged at one side of the positioning groove, and the positioning block (17) is located in the positioning hole (16) and connected with the flushing box (2).

6. The automatic rinse system for a liquid chromatograph of claim 5, wherein, The positioning hole (16) and the positioning block (17) are both in T-shaped structure.

7. The automatic rinse system for a liquid chromatograph of claim 6, wherein, The top end of the sealing cover (7) is provided with a handle (18).

8. The automatic rinse system for a liquid chromatograph of claim 7, wherein, The bottom end of the sealing cover (7) is provided with a sealing strip.

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