Multi-channel filtration and extraction pretreatment device

Abstract

The utility model relates to the field of chemical analysis, and discloses a multi-channel filtration and extraction pretreatment device which comprises a cabinet body, a test tube cleaning assembly is arranged in the cabinet body, the outer wall of the cabinet body is fixedly connected with a discharging motor, the driving end of the discharging motor is fixedly connected with a moisture absorption activated carbon storage box, and the driving end of the moisture absorption activated carbon storage box is fixedly connected with the cabinet body. A sliding plate is slidably connected to the interior of the moisture absorption activated carbon storage box, a clamping block is fixedly connected to the outer wall of the cabinet body, a feeding port is fixedly connected to the outer wall of the cabinet body, a sliding pipe is fixedly connected to the inner wall of the cabinet body, a discharging port is formed in the inner wall of the cabinet body, and a waste groove is fixedly connected to the outer wall of the cabinet body; and the inner wall of the cabinet body is fixedly connected with a turnover motor. According to the utility model, the automatic moisture-proof assembly is additionally arranged in the device, so that the humidity of the internal environment is monitored in real time, and moisture-proof activated carbon is added to prevent internal electronic components from working in the environment with relatively high humidity for a long time to influence the service life.

Description

Technical Field

[0001] The utility model relates to the field of chemical analysis, in particular to a pre-treatment device with multi-channel filtration and extraction. Background Art

[0002] The multi-channel filtration and extraction pretreatment device utilizes solid adsorbents to adsorb target compounds from liquid samples, separating them from the sample matrix and interfering compounds. Impurities are flushed away with an appropriate solvent, followed by rapid elution of the target compound with a small amount of solvent, achieving separation, purification, and concentration. This process, based on liquid-solid chromatography theory, employs selective adsorption and elution to purify samples and improve detection accuracy.

[0003] A multi-channel filtration and extraction pretreatment device can also reduce human errors through automated operation, ensure the consistency of sample processing, simplify the experimental process, reduce labor intensity, and be able to process multiple samples at the same time to meet the needs of high-throughput experiments. In the existing technology, some multi-channel filtration and extraction pretreatment devices lack automatic unloading and moisture-proof components, which causes the equipment to become damp when working in a humid environment for a long time, affecting its service life. Therefore, a multi-channel filtration and extraction pretreatment device is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the present invention provides a multi-channel filtration and extraction pre-treatment device, which aims to improve the problem of the lack of automatic unloading and moisture-proof components in the prior art.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A multi-channel filtration and extraction pretreatment device comprises a cabinet, a test tube cleaning component is arranged inside the cabinet, a feeding motor is fixedly connected to the outer wall of the cabinet, a driving end of the feeding motor is fixedly connected to a moisture-absorbing activated carbon storage box, a sliding plate is slidably connected to the interior of the moisture-absorbing activated carbon storage box, a clamping block is fixedly connected to the outer wall of the cabinet, a feeding port is fixedly connected to the outer wall of the cabinet, a sliding pipe is fixedly connected to the inner wall of the cabinet, a discharging port is opened on the inner wall of the cabinet, a waste chute is fixedly connected to the outer wall of the cabinet, a turning motor is fixedly connected to the inner wall of the cabinet, and a pressure-sensitive flip plate is fixedly connected to the driving end of the turning motor;

[0007] As a further description of the above technical solution:

[0008] The test tube cleaning assembly includes a rotating disk, which is rotatably connected to the inner wall of the cabinet, a rotating motor is fixedly connected to the outer wall of the cabinet, a sliding groove is provided on the inner wall of the cabinet, an electric slider is slidably connected to the inner wall of the cabinet, a test tube clamp is fixedly connected to the interior of the electric slider, and a sliding shield is slidably connected to the inner wall of the cabinet;

[0009] As a further description of the above technical solution:

[0010] The inner wall of the test tube clamp is detachably connected to a plurality of discharge test tubes, and the plurality of discharge test tubes are detachably connected to the inner wall of the cabinet, and the rotating disk is fixedly connected to the driving end of the rotating motor;

[0011] As a further description of the above technical solution:

[0012] A plurality of sample storage boxes are fixedly connected to the top of the cabinet, and a sample delivery tube is fixedly connected to the bottom of each of the plurality of sample storage boxes;

[0013] As a further description of the above technical solution:

[0014] The sample delivery tube is fixedly connected to the inner wall of the cabinet, the inner wall of the cabinet is fixedly connected with a breathable net, and the moisture-absorbing activated carbon storage box stores spherical moisture-proof activated carbon;

[0015] As a further description of the above technical solution:

[0016] The inner wall of the cabinet is detachably connected to a plurality of solid phase extraction test tubes, and the plurality of solid phase extraction test tubes are placed above the discharge test tube;

[0017] As a further description of the above technical solution:

[0018] The electric slider is slidably connected to the inner wall of the chute, and the pressure-sensitive flap is connected to the blanking motor via a signal line;

[0019] As a further description of the above technical solution:

[0020] The interior of the cabinet is fixedly connected with an intelligent panel, and the outer wall of the cabinet is fixedly connected with two water pipes.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, since the humidity of solid phase extraction operation is relatively high, the internal moisture absorption and moisture-proofing can be carried out by adding an automatic moisture-absorbing activated carbon component. The spherical moisture-absorbing activated carbon is placed inside the moisture-absorbing activated carbon storage box. When the internal activated carbon absorbs water to a certain extent and gains weight, it will be discharged and then automatically added, thereby monitoring the status of the activated carbon in real time and realizing automatic addition of moisture-absorbing activated carbon to keep the internal electronic components dry and increase their service life.

[0023] 2. In the utility model, the used discharge test tubes are cleaned by adding an automatic cleaning component. The motor is rotated to control the rotation of the rotating disk, and the used test tubes are immersed in water for cleaning. After cleaning, the sewage is discharged through the water pipe. The rotating disk drives the test tube clamp to rotate upside down to drain the water inside the test tube, and then the electric slider drives the test tube clamp to slide up to its original position, thereby cleaning the used test tubes, saving the cleaning process of the experimenter, providing convenience for the experiment and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a multi-channel filtration and extraction pre-treatment device proposed by the present invention;

[0025] Figure 2 This is a schematic structural diagram of a sample delivery tube with a multi-channel filtration and extraction pre-treatment device proposed by the present invention;

[0026] Figure 3 This is a schematic structural diagram of a breathable net with a multi-channel filtration and extraction pre-treatment device proposed in the present invention;

[0027] Figure 4 This is a schematic structural diagram of a waste tank with a multi-channel filtration and extraction pre-treatment device proposed in the present invention;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Cabinet; 2. Unloading motor; 3. Moisture-absorbing activated carbon storage box; 4. Feed port; 5. Sliding plate; 6. Block; 7. Sliding tube; 8. Flip motor; 9. Pressure-sensitive flap; 10. Waste chute; 11. Discharge port; 12. Electric slider; 13. Test tube clamp; 14. Rotating motor; 15. Rotating disk; 16. Slide; 17. Sliding shield; 18. Water pipe; 19. Breathable net; 20. Sample storage box; 21. Smart panel; 22. Sample delivery tube; 23. Solid phase extraction test tube; 24. Discharge test tube. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 3 , Figure 4 , Figure 5 The utility model provides an embodiment: a multi-channel filtration extraction pre-treatment device, including a cabinet 1, which is used to complete the solid-phase extraction treatment before extraction inside. A test tube cleaning component is provided inside the cabinet 1 for cleaning used test tubes. The outer wall of the cabinet 1 is fixedly connected to a feeding motor 2, which is used to control the rotation of a moisture-absorbing activated carbon storage box 3 to drop the moisture-proof activated carbon inside to the surface of a pressure-sensitive flap 9. The driving end of the feeding motor 2 is fixedly connected to a moisture-absorbing activated carbon storage box 3 for storing a certain amount of spherical moisture-proof activated carbon.

[0033] The interior of the moisture-absorbing activated carbon storage box 3 is slidingly connected to a sliding plate 5 to seal the moisture-absorbing activated carbon storage box 3. The outer wall of the cabinet 1 is fixedly connected to a card block 6. When the moisture-absorbing activated carbon storage box 3 rotates to a certain position, the sliding plate 5 contacts the card block 6, and the sliding plate 5 opens. At this time, the spherical activated carbon inside the moisture-absorbing activated carbon storage box 3 falls to the surface of the pressure-sensitive flap 9. The outer wall of the cabinet 1 is fixedly connected to a feed port 4, which is convenient for the activated carbon to fall into the interior of the cabinet 1. The inner wall of the cabinet 1 is fixedly connected to a sliding material pipe 7, which is convenient for introducing the spherical activated carbon to the surface of the pressure-sensitive flap 9. The inner wall of the cabinet 1 is provided with a discharge port 11, which is convenient for the spherical activated carbon that has absorbed enough moisture to fall out. The outer wall of the cabinet 1 is fixedly connected to a waste trough 10, which is convenient for storing invalid spherical activated carbon. The inner wall of the cabinet 1 is fixedly connected to a flip motor 8, which is convenient for flipping the pressure-sensitive flap 9 to make the spherical moisture-proof activated carbon with inactivated surface fall out.

[0034] The driving end of the flip motor 8 is fixedly connected to a pressure-sensitive flap 9. When the moisture-proof activated carbon absorbs moisture to a certain extent and increases a certain weight, a signal is transmitted to the unloading motor 2 to rotate the moisture-absorbing activated carbon storage box 3. A plurality of sample storage boxes 20 are fixedly connected to the top of the cabinet 1 for placing different test samples. The bottoms of the plurality of sample storage boxes 20 are fixedly connected to sample delivery tubes 22, which are convenient for delivering multiple samples to the interior of the solid phase extraction test tube 23. The sample delivery tubes 22 are fixedly connected to the inner wall of the cabinet 1. The inner wall of the cabinet 1 is fixedly connected to an air-permeable net 19, which is convenient for the internal activated carbon to absorb moisture from the interior of the device. The moisture-absorbing activated carbon storage box 3 stores spherical moisture-proof activated carbon, which is easy to roll to the surface of the pressure-sensitive flap 9.

[0035] Reference Figure 1 , Figure 2 , Figure 3 The test tube cleaning assembly includes a rotating disk 15, which is used to drive the test tube clamp 13 to rotate and immerse the used discharge test tube 24 in water for cleaning. The rotating disk 15 is rotatably connected to the inner wall of the cabinet 1, and the outer wall of the cabinet 1 is fixedly connected to the rotating motor 14. The rotating disk 15 is fixedly connected to the driving end of the rotating motor 14 to facilitate driving the rotating disk 15. A slide groove 16 is provided on the inner wall of the cabinet 1 to facilitate the sliding of the electric slider 12 inside. The inner wall of the cabinet 1 is slidably connected to the electric slider 12 to facilitate driving the test tube clamp 13 to slide to the inside of the rotating disk 15 for convenient cleaning. The interior of the electric slider 12 is fixedly connected to the test tube clamp 13 for fixing the test tube. The inner wall of the cabinet 1 is slidably connected to a sliding shielding plate 17.

[0036] When the test tube needs to be cleaned, it retracts into the interior of the cabinet 1, and when it does not need to be cleaned, it slides out to support the discharge test tube 24. The inner wall of the test tube clamp 13 is detachably connected to multiple discharge test tubes 24, which is convenient for collecting processed samples. Multiple discharge test tubes 24 are detachably connected to the inner wall of the cabinet 1. The inner wall of the cabinet 1 is detachably connected to multiple solid phase extraction test tubes 23, which is convenient for processing samples before extraction. Multiple solid phase extraction test tubes 23 are placed above the discharge test tube 24, and the electric slider 12 is slidably connected to the inner wall of the slide 16. The pressure-sensitive flap 9 is connected to the discharge motor 2 through a signal line, which is convenient for transmitting signals to the discharge motor 2. The interior of the cabinet 1 is fixedly connected to an intelligent panel 21, which is convenient for controlling the internal facilities. The outer wall of the cabinet 1 is fixedly connected to two water pipes 18, which are convenient for water inlet and outlet.

[0037] Working principle: When it is necessary to perform pre-filtration extraction operations on the target sample, the target sample liquid and the reagents required for solid-phase extraction can be added to the inside of the sample storage box 20, and the corresponding sample delivery tube 22 can be moved to the top of the target solid-phase extraction test tube 23. At this time, it is started through the control panel. When the sample liquid is processed, it drips into the inside of the discharge test tube 24, and then the discharge test tube 24 is removed to transfer the processed sample liquid and then put it back.

[0038] Then, the used discharge test tube 24 is cleaned through the smart panel 21. At this time, the sliding shield 17 slides inward, and the electric slider 12 drives the test tube clamp 13 to slide downward into the groove of the rotating disk 15. At this time, the rotating motor 14 controls the rotating disk 15 to rotate, and the used test tube is immersed in water for cleaning. After cleaning, the sewage is discharged through the water pipe 18. The rotating disk 15 drives the test tube clamp 13 to rotate upside down to drain the water inside the test tube, and then the electric slider 12 drives the test tube clamp 13 to slide up to its original position.

[0039] Since the humidity of solid phase extraction operation is relatively high, the interior can be made moisture-absorbing and moisture-proof by adding an automatic hygroscopic activated carbon component. The spherical hygroscopic activated carbon is placed inside the hygroscopic activated carbon storage box 3. When the activated carbon inside absorbs water to a certain extent and increases in weight, the pressure-sensitive flap 9 will transmit a signal to the flip motor 8. The flip motor 8 drives the pressure-sensitive flap 9 to flip so that the inactivated activated carbon on the surface falls through the discharge port 11 to the inside of the waste trough 10, and then transmits a signal to the downfeed motor 2. After receiving the signal, the downfeed motor 2 drives the hygroscopic activated carbon storage box 3 to rotate. When it rotates to the position of the block 6, the sliding plate 5 opens and drops the spherical hygroscopic activated carbon stored inside to the surface of the pressure-sensitive flap 9, thereby monitoring the status of the activated carbon in real time, realizing automatic addition of hygroscopic activated carbon, keeping the internal electronic components dry, and increasing their service life.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-channel filtration and extraction pre-treatment device, comprising a cabinet (1), characterized in that: The cabinet (1) is provided with a test tube cleaning assembly inside, the outer wall of the cabinet (1) is fixedly connected to a feeding motor (2), the driving end of the feeding motor (2) is fixedly connected to a moisture-absorbing activated carbon storage box (3), the interior of the moisture-absorbing activated carbon storage box (3) is slidably connected to a sliding plate (5), the outer wall of the cabinet (1) is fixedly connected to a clamping block (6), the outer wall of the cabinet (1) is fixedly connected to a feeding port (4), the inner wall of the cabinet (1) is fixedly connected to a sliding pipe (7), the inner wall of the cabinet (1) is provided with a feeding port (11), the outer wall of the cabinet (1) is fixedly connected to a waste trough (10), the inner wall of the cabinet (1) is fixedly connected to a turning motor (8), and the driving end of the turning motor (8) is fixedly connected to a pressure-sensitive turning plate (9).

2. The multi-channel filtration and extraction pretreatment device according to claim 1, characterized in that: The test tube cleaning assembly comprises a rotating disk (15), the rotating disk (15) is rotatably connected to the inner wall of the cabinet (1), the outer wall of the cabinet (1) is fixedly connected to a rotating motor (14), the inner wall of the cabinet (1) is provided with a sliding groove (16), the inner wall of the cabinet (1) is slidably connected to an electric slider (12), the interior of the electric slider (12) is fixedly connected to a test tube clamp (13), and the inner wall of the cabinet (1) is slidably connected to a sliding shielding plate (17).

3. The multi-channel filtration and extraction pretreatment device according to claim 2, characterized in that: The inner wall of the test tube clamp (13) is detachably connected to a plurality of discharge test tubes (24), and the plurality of discharge test tubes (24) are detachably connected to the inner wall of the cabinet (1), and the rotating disk (15) is fixedly connected to the driving end of the rotating motor (14).

4. The multi-channel filtration and extraction pretreatment device according to claim 1, characterized in that: A plurality of sample storage boxes (20) are fixedly connected to the top of the cabinet (1), and a sample delivery tube (22) is fixedly connected to the bottom of each of the plurality of sample storage boxes (20).

5. The multi-channel filtration and extraction pre-treatment device according to claim 4, characterized in that: The sample delivery tube (22) is fixedly connected to the inner wall of the cabinet (1), the inner wall of the cabinet (1) is fixedly connected with a breathable net (19), and the moisture-absorbing activated carbon storage box (3) stores spherical moisture-proof activated carbon inside.

6. The multi-channel filtration and extraction pretreatment device according to claim 1, characterized in that: The inner wall of the cabinet (1) is detachably connected to a plurality of solid phase extraction test tubes (23), and the plurality of solid phase extraction test tubes (23) are all placed above the discharge test tube (24).

7. The multi-channel filtration and extraction pretreatment device according to claim 2, characterized in that: The electric slider (12) is slidably connected to the inner wall of the chute (16), and the pressure-sensitive flap (9) is connected to the blanking motor (2) via a signal line.

8. The multi-channel filtration and extraction pre-treatment device according to claim 1, characterized in that: An intelligent panel (21) is fixedly connected to the interior of the cabinet (1), and two water pipes (18) are fixedly connected to the outer wall of the cabinet (1).

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