Portable electrochemical solution mixing device

Abstract

The utility model provides a portable electrochemical solution mixing device which comprises a base, a driving part is arranged in the base, a rotating cylinder is connected to the driving part, and a sample pool containing liquid to be detected is arranged on the rotating cylinder; the bottom end of the lifting assembly is connected with the base, the top end of the lifting assembly is provided with a PCB (Printed Circuit Board), and the PCB is electrically connected with the electrochemical tester; the working electrode, the reference electrode and the auxiliary electrode are all connected with the PCB through insertion springs, and the working electrode, the reference electrode and the auxiliary electrode all extend into the sample pool; the three electrodes can be quickly mounted, taken and placed only through simple plugging and unplugging actions, the depths of the three electrodes extending into the to-be-detected solution can be kept consistent, and the electrodes are simple, convenient, quick, uniform in stirring, reliable in connection, long in service life, beneficial to stable transmission of electric signals, small in overall size and small in occupied space.

Description

Technical Field

[0001] This utility model relates to the field of electrochemical mixer technology, and in particular to a portable electrochemical solution mixing device. Background Technology

[0002] Electrochemical stripping voltammetry for heavy metal detection comprises two processes: electrolytic enrichment and electrolytic dissolution. Electrolytic enrichment involves electrolyzing the test solution at a set constant potential, concentrating heavy metal ions onto the surface of the electrochemical sensor. During enrichment, to improve the effect, the electrochemical sensor (also called a fixed electrode) can be rotated relative to the solution to mix the solution and accelerate the transport of the analyte to the electrode surface. The amount of enriched substance depends on factors such as electrode potential, surface area, electrolysis time, and mixing speed. Traditional three-electrode systems (using three fixed electrodes) typically employ a magnetic stirrer with a stirring rotor for mixing. When installing the electrodes, each of the three electrodes must be clamped and fixed to a support before immersing one end of the electrode into the test liquid. This process results in inconsistent depth and position of the electrode insertion into the test liquid each time, negatively impacting the test results. Secondly, when using a magnetic stirrer to test different samples, the rotor must first be removed and cleaned, and then each of the three electrodes must be removed and cleaned individually, making the operation very cumbersome. Thirdly, when testing small sample volumes, the magnetic stirrer cannot complete the mixing process, making it unsuitable for rapid electrochemical detection equipment.

[0003] Therefore, it is necessary to provide a portable electrochemical solution mixing device to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this invention is to provide a portable electrochemical solution mixing device that allows for quick installation and removal of three electrodes with simple plugging and unplugging actions. The rising and falling of the three electrodes are synchronized, ensuring that the depth of the three electrodes inserted into the solution to be tested is consistent. The electrodes are simple and quick to install, the mixing is uniform, and the overall size is small and space-saving.

[0005] To achieve the above objectives, this utility model provides a portable electrochemical solution mixing device, comprising: a base, a driving component installed inside the base, a rotating cylinder connected to the driving component, and a sample cell containing the solution to be tested installed on the rotating cylinder;

[0006] A lifting assembly, the bottom of which is connected to a base, and a PCB board is mounted on the top of the lifting assembly, the PCB board being electrically connected to an electrochemical tester.

[0007] The sample includes a working electrode, a reference electrode, and an auxiliary electrode, all of which are connected to the PCB board via spring clips and extend into the sample cell.

[0008] Preferably, a positioning seat is also installed on the base, the positioning seat surrounds the rotating cylinder, and there is a gap between the positioning seat and the rotating cylinder, and the positioning seat does not rotate with the rotating cylinder.

[0009] Preferably, the portable electrochemical solution mixing device further includes an electrode mounting base, which is connected to the PCB board, and the spring passes through the electrode mounting base and is connected to the PCB board, the working electrode, the reference electrode, and the auxiliary electrode.

[0010] Preferably, the portable electrochemical solution mixing device further includes a mounting tube, in which the working electrode, reference electrode, and auxiliary electrode are all installed, and the mounting tube is connected to the electrode mounting base.

[0011] Preferably, the portable electrochemical solution mixing device further includes a housing, which is wrapped around the PCB board, spring, and electrode mounting base.

[0012] Preferably, the motor is equipped with a rotating shaft that extends from the base and is connected to the rotating cylinder.

[0013] Compared with existing technologies, the advantages are that the installation and removal of the three electrodes can be completed quickly with just a simple plugging and unplugging action, and the rising and falling of the three electrodes are synchronized, which can keep the depth of the three electrodes inserted into the solution to be tested consistent. The electrodes are simple and quick to install, the stirring is uniform, the connection is reliable, the service life is long, which is conducive to the stable transmission of electrical signals, and the overall size is small and does not take up space.

[0014] Other features and advantages of this invention will be set forth in the following description, and in part will be apparent from the description, or may be learned by practice of the invention. The features and advantages of this invention may be realized and obtained by means of the elements and combinations specifically pointed out in the appended claims. These and other features of this invention will become more apparent from the following description and the appended claims, or may be learned by practice of the embodiments described herein. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A perspective view of the portable electrochemical solution mixing device provided by this utility model.

[0017] Figure 2 for Figure 1 A cross-sectional view of the portable electrochemical solution mixing device shown. Detailed Implementation

[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0019] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0022] Please see Figures 1 to 2This utility model provides a portable electrochemical solution mixing device, including: a base 1, a driving component 2 installed inside the base 1, a rotating shaft 21 of the driving component 2 extending out from the base 1, and a rotating cylinder 3 connected to the rotating shaft 21 of the driving component 2, and a sample cell 6 installed on the rotating cylinder 3 to collect the test solution 5 (i.e., a solution containing heavy metals).

[0023] A lifting assembly 12 is provided, the bottom end of which is connected to the base 1, and a PCB board 10 is installed on the top end of the lifting assembly 12. The PCB board 10 is electrically connected to the electrochemical tester.

[0024] The working electrode, reference electrode, and auxiliary electrode are installed inside the mounting tube 7. All three electrodes are connected to the PCB board 10 via springs 9 and are electrically connected to the PCB board 10 via springs 9. Furthermore, all three electrodes extend into the sample cell 6. It should be noted that in this embodiment, the driving component is a motor 2, the mounting tube 7 is a circular tube, and the lifting assembly 12 can be a cylinder.

[0025] During operation, the sample cell 6 contains the test solution 5. The lifting component 12 moves downward to lower the height of the working electrode, reference electrode, and auxiliary electrode, immersing them in the test solution 5. The driving component 2 drives the rotating cylinder 3 to rotate via a rotating shaft. The sample cell 6 is placed inside the rotating cylinder 3 and rotates synchronously with it. The test solution 5 in the sample cell 6 also rotates together, causing relative motion between the test solution 5 and the working electrode, reference electrode, and auxiliary electrode, which plays a role in stirring and mixing, thus achieving the purpose of mixing the test solution 5.

[0026] In a preferred embodiment, a positioning seat 4 is also installed on the base 1. The positioning seat 4 surrounds the rotating cylinder 3 and there is a gap between the positioning seat 4 and the rotating cylinder 3. The positioning seat 4 does not rotate with the rotating cylinder 3.

[0027] In a preferred embodiment, the portable electrochemical solution mixing device further includes an electrode mounting base 8, which is fixedly connected to the PCB board 10. A retaining spring 9 passes through the electrode mounting base 8 and connects to the PCB board, the working electrode, the reference electrode, and the auxiliary electrode. A mounting tube 7 is inserted into the electrode mounting base 8. This facilitates the installation of the retaining spring 9 and increases the reliability of the installation of the working electrode, the reference electrode, and the auxiliary electrode.

[0028] In a preferred embodiment, the portable electrochemical solution mixing device further includes a housing 11, which covers the PCB board 10, the retaining spring 9, and the electrode mounting base 8. This prevents the PCB board 10 and the retaining spring 9 from being exposed outside the portable electrochemical solution mixing device, thus providing protection.

[0029] During operation, the sample cell 6 contains the test solution 5. The lifting component 12 moves downward to lower the height of the working electrode, reference electrode, and auxiliary electrode, immersing them in the test solution 5. The driving component 2 drives the rotating cylinder 3 to rotate via a rotating shaft. The sample cell 6 is placed inside the rotating cylinder 3 and rotates synchronously with it. The test solution 5 in the sample cell 6 also rotates together, causing relative motion between the test solution 5 and the working electrode, reference electrode, and auxiliary electrode, which plays a role in stirring and mixing, thus achieving the purpose of mixing the test solution 5.

[0030] During signal measurement, the working electrode, reference electrode, and auxiliary electrode transmit the detected electrical signals in the solution to the electrochemical analyzer via the PCB board 10 and wires for analysis and processing. After the measurement is completed, the lifting assembly 12 moves upward, ensuring that the working electrode, reference electrode, and auxiliary electrode are no longer immersed in the test solution 5. Thus, the synchronous upward and downward movement of the working electrode, reference electrode, and auxiliary electrode, driven by the lifting assembly 12, maintains a consistent depth of insertion into the test solution 5 for all three electrodes.

[0031] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A portable electrochemical solution mixing device, characterized by, include: A base (1) is provided with a drive unit (2) installed inside the base (1). A rotating cylinder (3) is connected to the drive unit (2). A sample cell (6) containing the test liquid (5) is installed on the rotating cylinder (3). A lifting assembly (12) is provided, the bottom end of which is connected to the base (1), and a PCB board (10) is installed on the top end of the lifting assembly (12), which is electrically connected to the electrochemical tester. The working electrode, reference electrode and auxiliary electrode are all connected to the PCB board (10) by spring clips (9), and the working electrode, reference electrode and auxiliary electrode all extend into the sample cell (6).

2. The portable electrochemical solution mixing device of claim 1, wherein, A positioning seat (4) is also installed on the base (1). The positioning seat (4) surrounds the rotating cylinder (3) and there is a gap between the positioning seat (4) and the rotating cylinder (3). The positioning seat (4) does not rotate with the rotating cylinder (3).

3. The portable electrochemical solution mixing device of claim 1, wherein, The portable electrochemical solution mixing device also includes an electrode mounting base (8), which is connected to a PCB board (10). The spring (9) passes through the electrode mounting base (8) and is connected to the PCB board (10) and the working electrode, reference electrode and auxiliary electrode.

4. The portable electrochemical solution mixing device of claim 3, wherein, The portable electrochemical solution mixing device also includes a mounting tube (7), in which the working electrode, reference electrode and auxiliary electrode are all installed, and the mounting tube (7) is inserted into the electrode mounting base (8).

5. The portable electrochemical solution mixing device of claim 3, wherein, The portable electrochemical solution mixing device also includes a housing (11) which is wrapped around the PCB board (10), the spring (9) and the electrode mounting base (8).

6. The portable electrochemical solution mixing device of claim 1, wherein, The drive unit (2) is equipped with a rotating shaft (21), which extends from the base (1) and is connected to the rotating cylinder (3).

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