Solid-phase extraction instrument convenient for collecting waste liquid

Abstract

The utility model relates to the technical field of extraction devices, in particular to a solid-phase extraction instrument convenient for waste liquid collection, which comprises a base, an extractor, a height adjusting device and an automatic feeding and discharging device, support legs are mounted at four corners of the bottom wall of the base, side plates are fixed on two sides of the top of the base, a top plate is fixed at the top ends of the two side plates, and the top plate is fixed on the top of the extractor. The top of the top plate is provided with the extractor, the top wall of the base is provided with a funnel box, the top end of the funnel box is provided with a placing plate, extraction test tubes are placed on the placing plate, a first motor is started to rotate reversely, and a first sliding block drives the placing plate and the placed extraction test tubes to move to the position under the top plate; and the placement plate can be automatically moved out and returned through forward rotation and reverse rotation of the first motor, the operation convenience is improved through the design, and hindrance in the operation process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of extraction devices, in particular to a solid phase extraction instrument which is convenient for collecting waste liquid. Background Art

[0002] As we all know, solid phase extraction is a sample pretreatment technology developed in recent years. It is developed by combining liquid-solid extraction and column liquid chromatography technology. It is mainly used for sample separation, purification and concentration. Compared with traditional liquid-liquid extraction, it can improve the recovery rate of analytes, more effectively separate analytes from interfering components, reduce sample pretreatment process, simple operation, time-saving and labor-saving, and is widely used in medicine, food, environment, commodity inspection, chemical industry and other fields.

[0003] The placement plate in the existing solid phase extractor for facilitating waste liquid collection cannot be automatically moved out and returned to its original position. Manual operation is required each time the extraction test tube is placed or taken out. Manual operation of the placement plate takes up the experimenter's time, especially when processing a large number of samples. This manual operation will significantly affect the overall efficiency of the experiment. Frequent manual operation will also increase the operator's fatigue, which may lead to inaccurate operation or errors, affecting the reliability of the experimental results. This increases the cumbersomeness of the operation and reduces work efficiency. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a solid phase extraction instrument which is convenient for collecting waste liquid.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solid phase extractor for facilitating waste liquid collection, comprising a base, an extractor, a height adjustment device and an automatic loading and discharging device, wherein the four corners of the bottom wall of the base are equipped with supporting legs, side panels are fixed on both sides of the top of the base, the same top panel is fixed on the top of the two side panels, the extractor is installed on the top of the top panel, a funnel box is installed on the top wall of the base, and a placement plate is arranged on the top of the funnel box, and the automatic loading and discharging device comprises a first adjustment frame, a second adjustment frame, a first screw, a first motor, a first slider, a first fixed rod and a moving block, the first adjustment frame and the second adjustment frame are respectively located on the left and right sides of the placement plate, the first adjustment frame and the second adjustment frame are respectively equipped with the first screw and the first fixed rod, the output end of the first screw passes through the side wall of the first adjustment frame and is equipped with the first motor, the first slider is threadedly installed on the first screw, the side wall of the first slider is fixedly connected to the side wall of one side of the placement plate, the moving block is slidably arranged on the first fixed rod, and the side wall of the moving block is fixedly connected to the side wall of the other side of the placement plate.

[0008] In order to facilitate the adjustment of the height of the placement plate, the utility model is improved in that the height adjustment device includes a second screw, a second slider and a second motor, and the first groove body and the second groove body are respectively opened on the corresponding sides of the two groups of side plates, the first screw is rotatably installed in the first groove body, the second motor is installed on the bottom wall of the first screw, and the second slider is threadedly installed on the second screw, and the second slider is fixedly connected to the side wall of the first adjustment frame away from the first groove body.

[0009] In order to prevent the placement plate from deviating from the movement trajectory during movement, the utility model is improved in that a guide rod is installed in the second slot body, a guide block is slidably provided on the guide rod, and the guide block is fixedly connected to the second adjustment frame on a side away from the second slot body.

[0010] In order to facilitate the collection of waste liquid, the utility model is improved in that a plurality of evenly distributed placement grooves are provided on the top wall of the placement plate, a collecting groove is longitudinally provided on the placement plate, and a collecting hole penetrating the placement plate is provided in the collecting groove.

[0011] In order to facilitate the collection and treatment of waste liquid, the utility model is improved in that the bottom wall of the funnel box is provided with a liquid discharge pipe penetrating through the top wall of the base.

[0012] In order to facilitate the control of the opening and closing of the liquid discharge pipe, the utility model is improved in that a control valve is arranged on the liquid discharge pipe.

[0013] In order to facilitate manual movement of the device, the utility model is improved in that handles are installed on the left and right side walls of the base.

[0014] In order to improve the anti-skid property of the handle, the utility model is improved in that the handle is provided with anti-skid patterns.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a solid phase extractor that is convenient for waste liquid collection and has the following beneficial effects:

[0017] The solid phase extractor which is convenient for waste liquid collection has an automatic loading and discharging device, and the forward and reverse rotation of the first motor can drive the placement plate to move, so as to realize automatic removal and return of the placement plate. The automatic removal and return function reduces the steps of manual operation and realizes automation, which greatly improves the efficiency of experimental operation, especially when it is necessary to continuously process multiple samples, the operation time can be significantly reduced, and the possibility of these human errors is reduced, thereby improving the accuracy and reliability of the experiment.

[0018] The solid phase extractor which is convenient for waste liquid collection has a height adjustment device, and the forward and reverse rotation of the second motor can drive the placement plate to adjust the height through the automatic loading and unloading device. By adjusting the height of the placement plate, the instrument can adapt to extraction test tubes of different heights, which means that no matter what the size of the test tube is, it can be conveniently placed on the placement plate, thereby ensuring the stability and efficiency of the extraction process and improving the flexibility and safety of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the automatic loading and unloading device of the utility model;

[0021] Figure 3 It is a half-section three-dimensional structural schematic diagram of the side panel of the utility model;

[0022] Figure 4 It is a front view planar structure schematic diagram of the utility model.

[0023] In the figure: 1. base; 2. extractor; 3. supporting legs; 4. side panels; 5. top panel; 6. funnel box; 7. placement plate; 8. first adjustment frame; 9. second adjustment frame; 10. first screw rod; 11. first motor; 12. first slider; 13. first fixed rod; 14. moving block; 15. second screw rod; 16. second slider; 17. second motor; 18. first trough body; 19. second trough body; 20. guide rod; 21. guide block; 22. placement trough; 23. collecting trough; 24. collecting hole; 25. drain pipe; 26. control valve; 27. handle. 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] See also Figure 1-4 , a solid phase extractor for facilitating waste liquid collection, comprising a base 1, an extractor 2, a height adjustment device and an automatic loading and discharging device, wherein the four corners of the bottom wall of the base 1 are provided with supporting legs 3, the two sides of the top of the base 1 are fixed with side panels 4, the top of the two side panels 4 are fixed with the same top panel 5, the top of the top panel 5 is provided with the extractor 2, the top wall of the base 1 is provided with a funnel box 6, the top of the funnel box 6 is provided with a placement plate 7, the automatic loading and discharging device comprises a first adjustment frame 8, a second adjustment frame 9, a first screw 10, a first motor 11, a first slider 12, a first fixed rod 13 and a moving block 14, the first adjustment frame 8 and the second adjustment frame 9 are respectively located on the left and right sides of the placement plate 7, the first screw 10 and the first fixed rod 13 are respectively installed in the first adjustment frame 8 and the second adjustment frame 9, the output end of the first screw 10 passes through the side wall of the first adjustment frame 8 and is provided with the first motor 11, the first screw 10 is threadedly provided with the first slider 12, the side wall of the first slider 12 and the placement plate 7 The first fixing rod 13 is fixedly connected to the side wall of one side of the placing plate 7, and the moving block 14 is slidably provided on the first fixing rod 13, and the side wall of the moving block 14 is fixedly connected to the side wall of the other side of the placing plate 7. In this embodiment, before extraction is required, the first motor 11 is first started, and the output end of the first motor 11 drives the first screw 10 to rotate. The first screw 10 drives the first slider 12 to move on the first screw 10 during the rotation process, and the first slider 12 drives the placing plate 7 to move longitudinally. The moving block 14 slides on the first fixing rod 13 during the movement of the placing plate 7, and plays a guiding and limiting role in the movement of the placing plate 7. The placing plate 7 protrudes directly below the top plate 5, and then the extraction test tube is placed on the placing plate 7, and the first motor 11 is started to reverse, so that the first slider 12 drives the placing plate 7 and the placed extraction test tubes to move directly below the top plate 5, so that the placing plate 7 automatically returns to its original position, and the next step of extraction is carried out. The forward and reverse rotation of the first motor 11 can realize the automatic removal and return of the placing plate 7. This design improves the convenience of operation and reduces obstacles during operation.

[0026] In actual use, it is further convenient to adjust the height of the placement plate 7. In this embodiment, the height adjustment device includes a second screw 15, a second slider 16 and a second motor 17. The first groove 18 and the second groove 19 are respectively provided on the corresponding sides of the two groups of side plates 4. The first groove 18 is rotatably installed with the first screw 10, and the bottom wall of the first screw 10 is installed with the second motor 17. The second slider 16 is threadedly installed on the second screw 15. The side of the second slider 16 away from the first groove 18 is fixedly connected to the side wall of the first adjustment frame 8. When the height of the placement plate 7 needs to be adjusted, the second motor 17 is started, and the output end of the second motor 17 drives the second screw 15 to rotate, and the second screw 15 drives the second slider 16 to move up and down in the first groove 18. The second slider 16 drives the first adjustment frame 8, and the first adjustment frame 8 drives the placement plate 7 to adjust the height, which is convenient for adapting to extraction test tubes of different heights.

[0027] In actual use, in order to further prevent the placement plate 7 from deviating from the motion trajectory during movement, in this embodiment, a guide rod 20 is installed in the second groove body 19, and a guide block 21 is slidably provided on the guide rod 20. The guide block 21 is fixedly connected to the second adjustment frame 9 on the side away from the second groove body 19. The placement plate 7 drives the second adjustment frame 9 to move up and down, and drives the guide block 21 to slide on the guide rod 20, which guides the movement of the placement plate 7 and prevents the placement plate 7 from deviating from the motion trajectory during movement.

[0028] In actual use, it is further convenient to collect waste liquid. In this embodiment, a plurality of evenly distributed placement grooves 22 are provided on the top wall of the placement plate 7, and a collecting groove 23 is longitudinally provided on the placement plate 7. A collecting hole 24 that passes through the placement plate 7 is provided in the collecting groove 23. The placement groove 22 is used to place extraction test tubes, and the collecting groove 23 is convenient for collecting waste liquid. The collecting hole 24 is convenient for the waste liquid collected by the collecting groove 23 to flow into the funnel box 6, so as to collect the waste liquid.

[0029] In actual use, it is further convenient to collect and treat the waste liquid. In this embodiment, the bottom wall of the funnel box 6 passes through the top wall of the base 1 and is provided with a drain pipe 25. The drain pipe 25 is convenient for external collection equipment to collect the waste liquid and transport it to the collection equipment, and there is no need to dump the funnel box 6 regularly.

[0030] In actual use, in order to further facilitate the control of the opening and closing of the drain pipe 25 , in this embodiment, a control valve 26 is provided on the drain pipe 25 , and the control valve 26 facilitates further controlling the opening and closing of the drain pipe 25 .

[0031] In actual use, in order to further facilitate manual movement of the device, in this embodiment, handles 27 are installed on the left and right side walls of the base 1, and the handles 27 facilitate manual lifting of the base 1 and placement at the target position.

[0032] In actual use, in order to further improve the anti-slip property of the handle 27, in this embodiment, the handle 27 is provided with anti-slip grooves, which can increase friction, prevent slipping, and improve the safety and stability of the handle 27 when in use.

[0033] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solid phase extractor for facilitating waste liquid collection, comprising a base (1), an extractor (2), a height adjustment device and an automatic loading and unloading device, characterized in that: Support legs (3) are installed at the four corners of the bottom wall of the base (1); side panels (4) are fixed on both sides of the top of the base (1); the same top panel (5) is fixed on the top of the two side panels (4); the extractor (2) is installed on the top of the top panel (5); a funnel box (6) is installed on the top wall of the base (1); a placement plate (7) is provided on the top of the funnel box (6); the automatic loading and unloading device comprises a first adjustment frame (8), a second adjustment frame (9), a first screw rod (10), a first motor (11), a first slider (12), a first fixed rod (13) and a moving block (14); the first adjustment frame (8) and the second adjustment frame (9) are ) are respectively located on the left and right sides of the placement plate (7), the first screw rod (10) and the first fixed rod (13) are respectively installed in the first adjustment frame (8) and the second adjustment frame (9), the output end of the first screw rod (10) passes through the side wall of the first adjustment frame (8) and is provided with the first motor (11), the first slider (12) is threadedly installed on the first screw rod (10), the side wall of the first slider (12) is fixedly connected to one side wall of the placement plate (7), the moving block (14) is slidably arranged on the first fixed rod (13), and the side wall of the moving block (14) is fixedly connected to the other side wall of the placement plate (7).

2. A solid phase extractor for facilitating waste liquid collection according to claim 1, characterized in that: The height adjustment device comprises a second screw rod (15), a second slider (16) and a second motor (17); a first slot body (18) and a second slot body (19) are respectively provided on the corresponding sides of the two sets of side plates (4); a first screw rod (10) is rotatably mounted in the first slot body (18); the second motor (17) is mounted on the bottom wall of the first screw rod (10); the second slider (16) is threadedly mounted on the second screw rod (15); and a side of the second slider (16) away from the first slot body (18) is fixedly connected to the side wall of the first adjustment frame (8).

3. A solid phase extractor for facilitating waste liquid collection according to claim 2, characterized in that: A guide rod (20) is installed in the second slot body (19), a guide block (21) is slidably arranged on the guide rod (20), and the side of the guide block (21) away from the second slot body (19) is fixedly connected to the second adjustment frame (9).

4. A solid phase extractor for facilitating waste liquid collection according to claim 3, characterized in that: The top wall of the placement plate (7) is provided with a plurality of evenly distributed placement grooves (22), the placement plate (7) is longitudinally provided with a collection groove (23), and the collection groove (23) is provided with a collection hole (24) penetrating the placement plate (7).

5. A solid phase extractor for facilitating waste liquid collection according to claim 4, characterized in that: The bottom wall of the funnel box (6) penetrates through the top wall of the base (1) and is provided with a liquid discharge pipe (25).

6. A solid phase extractor for facilitating waste liquid collection according to claim 5, characterized in that: The liquid discharge pipe (25) is provided with a control valve (26).

7. A solid phase extractor for facilitating waste liquid collection according to claim 6, characterized in that: Handles (27) are installed on the left and right side walls of the base (1).

8. A solid phase extractor for facilitating waste liquid collection according to claim 7, characterized in that: The handle (27) is provided with anti-slip patterns.

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