Electrochemical detection device

Abstract

The invention discloses an electrochemical detection device, belongs to the field of detection equipment, and is used for solving the problem of how to improve the disassembly and assembly convenience of an electrode tip so as to improve the accuracy and applicability of electrochemical detection. The electrochemical detection device comprises an electrode holder and an electrode tip, the electrode holder is provided with a first magnetic attraction part; the electrode tip is used for being connected with the detection electrode and is provided with a second magnetic attraction part, and the second magnetic attraction part is used for being connected with the first magnetic attraction part in a magnetic attraction mode so that the electrode tip can be detachably installed on the electrode base. According to the electrochemical detection device, through magnetic attraction connection of the first magnetic attraction component and the second magnetic attraction component, rapid connection and separation of the electrode tip and the electrode holder can be realized, so that the convenience of replacing the electrode tip and the accuracy and reliability of electrochemical detection are improved, and the applicability and flexibility of the electrochemical detection device are enhanced.

Description

Technical Field

[0001] The present application relates to the field of detection equipment, and in particular to an electrochemical detection device. Background Art

[0002] As a highly sensitive and accurate analytical method, electrochemical detection has been widely used in analytical chemistry, biology, and environmental monitoring. Its core is to generate measurable electrical signals through electrochemical interactions between electrodes and target molecules, thereby performing qualitative and quantitative analysis of target molecules. However, the electrode heads of most electrochemical detection devices are designed to be fixed, which makes them difficult to replace or disassemble once installed.

[0003] Since the electrode head cannot be disassembled, if it is contaminated, blocked or its performance degraded after long-term use, it cannot be effectively repaired or replaced, which affects the accuracy and stability of the test results. At the same time, different detection tasks may require different types of electrode heads to adapt to different detection environments, sample types and detection requirements. Fixed electrode heads cannot meet this applicability requirement, which limits the application scope of electrochemical detection devices.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] The embodiment of the present application provides an electrochemical detection device, which can solve the problem of how to improve the convenience of disassembly and assembly of the electrode head in the prior art, thereby improving the accuracy and applicability of electrochemical detection.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, this application provides the following technical solutions:

[0009] An electrochemical detection device, comprising: an electrode holder and an electrode head;

[0010] The electrode seat is provided with a first magnetic attraction component;

[0011] The electrode head is used to connect the detection electrode and is provided with a second magnetic attraction component, and the second magnetic attraction component is used to be magnetically connected to the first magnetic attraction component so that the electrode head can be detachably mounted on the electrode seat;

[0012] The first magnetic attraction component and the second magnetic attraction component are respectively a magnet and a magnetic metal; or both are magnets, and two ends with opposite magnetic properties are arranged opposite to each other.

[0013] In some embodiments, a conductive element is provided on the top of the electrode seat; a connecting port is provided on the bottom of the electrode head, and the electrode head is provided with a conductive portion arranged toward the connecting port; when the electrode head is installed on the electrode seat, the conductive portion contacts the conductive element to electrically connect the electrode head and the electrode seat.

[0014] In some embodiments, a cavity is provided inside the electrode holder, and a connecting wire is provided in the cavity, and the connecting wire is electrically connected to the conductive element.

[0015] In some embodiments, a positioning protrusion is provided at the bottom of the electrode head, a positioning groove is provided at the electrode seat, and the top end surface of the electrode seat is a horizontal plane; when the electrode head is installed on the electrode seat, the positioning protrusion is inserted into the interior of the positioning groove to fix the electrode head and the electrode seat relatively in the horizontal direction.

[0016] In some embodiments, the electrode head is provided with a limiting surface. When the electrode head is installed on the electrode seat, the top of the electrode seat is located inside the connecting port and contacts the limiting surface, so that the electrode head and the electrode seat are relatively fixed in the horizontal direction.

[0017] In some embodiments, a socket is further provided at the bottom of the electrode head, and the electrode head is provided with a plug arranged opposite to the socket, and the detection electrode is detachably connected to the plug after passing through the socket.

[0018] In some embodiments, the detection electrode is a printed electrode.

[0019] In some embodiments, the electrochemical detection device further includes a base and a lifting mechanism; the base is used to place the sample to be detected; the electrode seat is arranged on the base so as to be able to be lifted and moved; the lifting mechanism is connected to the electrode seat and is configured to drive the electrode seat to be lifted and lowered.

[0020] In some embodiments, the base is provided with a first mounting plate and a second mounting plate which are spaced apart at an upper and lower position, the first mounting plate and the second mounting plate are provided with guide holes, the electrode seat is in a straight cylindrical shape, and is arranged in the guide hole so as to be able to be raised and lowered, and the electrode seat is circumferentially fixed in the guide hole; the lifting mechanism includes a motor, a screw rod, a nut and a connecting plate; the motor is fixedly connected to the first mounting plate and the second mounting plate, the screw rod is transmission-connected to the motor, the nut is connected to the screw rod and fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the electrode seat.

[0021] In some embodiments, the electrochemical detection device also includes a base and a rotating mechanism; the rotating mechanism includes a rotating table and a rotating drive mechanism, the rotating table is rotatably disposed on the base and is used to place the sample to be detected; the rotating mechanism is disposed on the base and connected to the rotating table, and is configured to drive the rotating table to rotate.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the technical solution provided in the embodiment of the present application has at least the following beneficial effects:

[0024] The electrochemical detection device of the present application can realize the rapid connection and separation of the electrode head and the electrode holder through the magnetic connection of the first magnetic attraction component and the second magnetic attraction component. Compared with the existing fixed electrode head, this connection method not only simplifies the installation and disassembly process of the electrode head, improves the convenience of replacing the electrode head, but also allows the user to quickly replace or repair the electrode head when it is contaminated, blocked or the performance is degraded, so as to ensure that the electrochemical detection device is always in good working condition, thereby improving the accuracy and reliability of electrochemical detection. In addition, due to the convenience of replacing the electrode head, the user can also flexibly replace different types of electrode heads according to different detection environments, sample types and detection requirements, further enhancing the applicability and flexibility of the electrochemical detection device. At the same time, after the electrode head is removed from the electrode holder, the electrode replacement operation can be facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 is a three-dimensional diagram of an electrochemical detection device in an embodiment of the present application;

[0027] Figure 2 is a three-dimensional diagram of the electrode head and the electrode seat in the separated state in the embodiment of the present application;

[0028] Figure 3 is a three-dimensional diagram of the electrode head in the embodiment of the present application;

[0029] Figure 4 is a top view of an electrochemical detection device in an embodiment of the present application;

[0030] Figure 5 yes Figure 4 Cross-sectional view of section A.

[0031] Reference numerals:

[0032] Electrode holder 1, connection surface 11, first magnetic attraction component 12, conductive element 13, cavity 101, positioning groove 102;

[0033] Electrode head 2, housing 21, circuit connection board 22, second magnetic attraction component 23, connection port 201, conductive portion 202, positioning protrusion 203, limiting surface 204, jack 205, plug 206;

[0034] Detection electrode 3, base 4, first mounting plate 41, second mounting plate 42, guide hole 400;

[0035] Lifting mechanism 5, lifting drive motor 51, screw rod 52, nut 53, connecting plate 54;

[0036] Rotating mechanism 6 , rotating table 61 , and rotating driving mechanism 62 .

[0037] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0039] 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 described embodiments are 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 creative work are within the scope of protection of the present invention.

[0040] The electrode head of the existing electrochemical detection device is usually designed to be fixed, such as being fixed relative to the electrode holder. Once installed, it is difficult to remove or replace. This fixed design brings inconvenience during actual use.

[0041] See also Figures 1 to 5 As shown, Figure 1 is a three-dimensional diagram of an electrochemical detection device in an embodiment of the present application, Figure 2 is a three-dimensional diagram of the electrode head and the electrode holder in the embodiment of the present application in a separated state, Figure 3 is a three-dimensional diagram of the electrode head in the embodiment of the present application, Figure 4 is a top view of the electrochemical detection device in the embodiment of the present application, Figure 5 yes Figure 4 Cross-sectional view of section A.

[0042] In order to solve the above technical problems, this embodiment provides an electrochemical detection device, such as Figure 1 As shown, it includes: an electrode holder 1 and an electrode head 2.

[0043] like Figure 2 As shown, the electrode holder 1 is provided with a first magnetic attraction component 12;

[0044] like Figure 2 and Figure 3 As shown, the electrode head 2 is used to install the detection electrode 3 and includes a second magnetic attraction component 23. The second magnetic attraction component 23 is used to be magnetically connected to the first magnetic attraction component 12 so that the electrode head 2 can be detachably installed on the electrode holder 1.

[0045] The first magnetic component 12 and the second magnetic component 23 are respectively a magnet and a magnetic metal, or both are magnets, and the two ends with opposite magnetic properties are arranged opposite to each other; illustratively, the first magnetic component 12 and the second magnetic component 23 can be fixed inside the electrode holder 1 and the electrode head 2, respectively.

[0046] The electrochemical detection device of the above technical solution magnetically connects the electrode head 2 and the electrode holder 1 through the first magnetic attraction component 12 and the second magnetic attraction component 23, so that the electrode head 2 can be fixed on the electrode holder 1 by magnetic attraction during operation, and separated from the electrode holder 1 by overcoming the magnetic attraction force during disassembly, thereby improving the convenience of replacing the electrode head 2; since the electrode head 2 is easy to replace, compared with the existing fixed electrode head 2 design, it can be repaired or replaced in time when the electrode head 2 is contaminated, blocked or the performance is degraded, thereby improving the accuracy of electrochemical detection; at the same time, it is convenient to replace different types of electrode heads 2 according to different detection environments, sample types and detection requirements, thereby improving the applicability of electrochemical detection.

[0047] Exemplarily, the electrode holder 1 is provided with a connection surface 11 for connecting the electrode head 2, and a first magnetic attraction component 12 is fixed on the inner side of the connection surface 11. The electrode head 2 includes a housing 21 and a circuit connection board 22, the circuit connection board 22 and the second magnetic attraction component 23 are fixed in the housing 21, and the circuit connection board 22 is used to connect the detection electrode 3. It can be understood that the circuit connection board 22 is responsible for transmitting the electrochemical signal received by the detection electrode 3 to the processing module for processing.

[0048] In order to facilitate the power supply to the circuit connection board 22 and improve the stability of the electrode head 2 and the electrode seat 1, refer to Figure 2 and Figure 3As shown, the top of the electrode holder 1 is provided with a connection surface 11, and a conductive element 13 is provided on the connection surface 11; the bottom of the shell 21 is provided with a connection port 201, and the circuit connection board 22 is provided with a conductive portion 202 arranged toward the connection port 201; when the electrode head 2 is arranged on the connection surface 11, the top of the electrode holder 1 is inserted into the connection port 201, and the conductive portion 202 contacts the conductive element 13, so that the circuit connection board 22 and the conductive element 13 are electrically connected. Among them, the connection surface 11 provides a stable support platform for the electrode head 2; the conductive element 13 and the conductive portion 202 can be metal contacts, conductive sheets or any other elements that can achieve electrical connection. The shell 21 serves as a protective structure of the electrochemical detection device, and the connection port 201 at the bottom allows the electrical connection between the circuit connection board 22 and the electrode holder 1 to be unobstructed; the shape, size and position of the connection port 201 need to ensure that the conductive element 13 on the electrode holder 1 can be smoothly inserted and aligned with the conductive portion 202 of the circuit connection board 22. The above arrangement enables the conductive element 13 and the conductive part 202 to form a close contact when the electrode head 2 is placed on the connection surface 11. This contact not only ensures the stable transmission of the electrochemical signal, but also provides sufficient mechanical support. Combined with the magnetic attraction, the electrode head 2 can remain stable during the detection process. At the same time, due to the close contact between the conductive part 202 and the conductive element 13, a reliable electrical connection is formed between the circuit connection board 22 and the electrode holder 1, thereby allowing the electrochemical signal to be transmitted and processed inside the detection device. This embodiment not only improves the reliability and accuracy of the electrochemical detection device, but also simplifies the replacement process of the electrode head 2. The user only needs to remove the electrode head 2 from the connection surface 11 and then replace it with a new electrode head 2. Last but not least, since the contact between the conductive part 202 and the conductive element 13 is automatically achieved, no additional adjustment or calibration work is required, making the use of the electrochemical detection device more convenient and efficient. In addition, after the electrode head 2 is removed from the electrode holder 1, the replacement operation of the detection electrode 3 can be facilitated.

[0049] To make the product structure more modular, see Figure 5 As shown, a cavity 101 is provided inside the electrode holder 1, and a connecting wire is provided inside the cavity 101, the connecting wire is electrically connected to the conductive element 13, and the connecting wire is used to transmit power and signals. The cavity 101 provides sufficient space for the connecting wire, ensuring that the arrangement of the connecting wire will not be disturbed by the external environment, and the connecting wire will not be pulled during the lifting process. In practical applications, the arrangement of the cavity 101 and the connecting wire inside the electrode holder 1 can be customized according to specific electrochemical detection requirements. For example, for a detection device that needs to transmit high-frequency electrochemical signals, a thinner and denser connection line arrangement can be used to reduce attenuation and interference during signal transmission; at the same time, the shape and size of the cavity 101 can also be adjusted according to the size and layout of the electrode holder 1.

[0050] For example, see Figure 5 As shown, the cavity 101 is located below the conductive element 13 and penetrates downward, so that the connecting wire can extend downward and extend out from the bottom of the electrode holder 1, thereby avoiding interference with the movement of other components and making the electrochemical detection device work more stably and reliably.

[0051] In order to improve the stability of the electrode head 2 and the electrode holder 1, refer to Figure 2 and Figure 3 As shown, a positioning convex portion 203 is provided at the bottom of the housing 22, and a positioning groove 102 is provided on the connection surface 11 of the electrode holder 1, and the connection surface 11 is a horizontal surface; when the electrode head 2 is arranged on the connection surface 11, the positioning convex portion 203 is inserted into the interior of the positioning groove 102, so that the electrode head 2 and the electrode holder 1 are relatively fixed in the horizontal direction. Among them, the positioning convex portion 203 can be cylindrical, square, triangular or other geometric shapes, and the specific shape depends on the design of the positioning groove 102 on the electrode holder 1 to ensure that the two can fit closely. When the electrode head 2 and the electrode holder 1 are matched, the positioning convex portion 203 is automatically aligned and inserted into the interior of the positioning groove 102, so that the electrode head 2 and the electrode holder 1 are relatively fixed in the horizontal direction, and the displacement risk caused by vibration or external force is also reduced. The matching clearance between the positioning convex portion 203 and the positioning groove 102 should be as small as possible to improve the stability and accuracy of the connection. At the same time, in order to ensure easy disassembly, the side walls of the positioning convex portion 203 and the positioning groove 102 can be designed to have a certain inclination angle or elasticity so that they can be easily separated when necessary.

[0052] In order to improve the stability of the electrode head 2 and the electrode holder 1, refer to Figure 3 and Figure 5 As shown, the electrode head 2 is provided with a limiting surface 204. When the electrode head 2 is arranged on the connection surface 11, the top of the electrode holder 1 is located inside the connection port 201 and contacts the limiting surface 204, so that the electrode head 2 and the electrode holder 1 are relatively fixed in the horizontal direction. Exemplarily, the limiting surface 204 is the inner side surface of the connection port 201 and extends toward the electrode holder 1 to fully contact the electrode holder 1.

[0053] To facilitate the installation of the detection electrode 3, refer to Figure 3 and Figure 5As shown, a socket 205 is also provided at the bottom of the housing 21, and a plug 206 is provided on the circuit connection board 22 opposite to the socket 205. The detection electrode 3 is detachably connected to the plug 206 through the socket 205 to be electrically connected to the circuit connection board 22. The shape, size and position of the socket 205 must ensure that it can match the plug 206 on the circuit connection board 22; the detection electrode 3 is detachably connected to the circuit connection board 22 and the electrode holder 1 through the socket 205 and the plug 206, and can be replaced and selected according to the detection environment, sample type and detection requirements. Before detection, the detection electrode 3 passes through the socket 205 and is inserted into the plug 206 to achieve electrical connection with the circuit connection board 22. This connection method not only simplifies the replacement process of the detection electrode 3, but also improves the flexibility and applicability of the electrochemical detection device. The user can select a suitable detection electrode 3 according to specific detection requirements and easily connect it to the device.

[0054] Exemplarily, the detection electrode 3 is a printed electrode. A printed electrode is an electrode formed by depositing a conductive material (such as gold, silver, copper, etc.) on a substrate material (such as plastic, ceramic, glass, etc.) through printing technology. This electrode has the advantages of low cost, simple preparation process, easy integration and miniaturization. In an electrochemical detection device, the printed electrode can be designed into various shapes and sizes to meet different detection requirements. For example, for an electrochemical sensor that needs to detect small molecules, a miniaturized printed electrode can be used to improve the sensitivity and accuracy of the detection. For an electrochemical sensor that needs to detect macromolecules or biological samples, a larger area of ​​printed electrodes can be used to increase the effective area and signal strength of the detection.

[0055] In order to control the lifting of the electrode holder 1 so that the detection electrode 3 on the electrode head 2 can be automatically inserted into or removed from the sample to be detected, refer to Figure 1 and Figure 2 As shown, the electrochemical detection device also includes a base 4 and a lifting mechanism 5; the base 4 is used to place the sample to be detected. It can be understood that the placement position of the sample to be detected is located directly below the detection electrode 3; the electrode holder 1 is arranged on the base 4 so as to be movable and retractable; the lifting mechanism 5 is connected to the electrode holder 1 and is configured to drive the electrode holder 1 to move up and down. In this way, the lifting mechanism 5 can drive the electrode holder 1 to move downward during detection, so that the detection electrode 3 is inserted into the sample to be detected, and drive the electrode holder 1 to move upward after detection, so that the detection electrode 3 is separated from the sample to be detected.

[0056] In one embodiment of the lifting mechanism 5, see Figure 1 and Figure 2As shown, the base 4 is provided with a first mounting plate 41 and a second mounting plate 42 which are spaced apart at an upper and lower position, the first mounting plate 41 and the second mounting plate 42 are provided with a guide hole 400, the electrode holder 1 is in a straight cylindrical shape, and is arranged in the guide hole 400 so as to be movable in a lifting manner, and the electrode holder 1 is circumferentially fixed in the guide hole 400, such as by the electrode holder 1 and the guide hole 400 being both elliptical, square or other non-circular shapes; the lifting mechanism 5 includes a lifting drive motor 51, a screw rod 52, a nut 53 and a connecting plate 54; the lifting drive motor 51 is fixedly connected to the first mounting plate 41 and the second mounting plate 42, the screw rod 52 is transmission-connected to the lifting drive motor 51, the nut 53 is connected to the screw rod 52, and is fixedly connected to the connecting plate 54, and the connecting plate 54 is fixedly connected to the electrode holder 1. When the lifting mechanism 5 is working, the electrode drives the screw 52 to rotate. Since the nut 53, the connecting plate 54 and the electrode holder 1 are fixed as a whole, and the electrode holder 1 is circumferentially fixed by the guide hole 400, the nut 53 can be automatically lifted and lowered during the rotation of the screw 52, ​​thereby driving the detection electrode 3 to automatically lift and lower. Among them, the first mounting plate 41 and the second mounting plate 42 arranged at intervals on the upper and lower parts of the base 4 provide a stable support structure for the lifting mechanism 5; the lifting drive motor 51 in the lifting mechanism 5 is used as a power source, and its model and power should be selected according to the overall size, load capacity and lifting speed requirements of the electrochemical detection device. The lifting drive motor 51 is connected to the screw 52 through a transmission device (such as a reducer, a coupling, etc.), and the rotational motion of the lifting drive motor 51 is converted into the linear motion of the screw 52. A precise matching method is adopted between the screw 52 and the nut 53 to ensure the stability and accuracy of the lifting process. At the same time, the nut 53 is fixedly connected to the connecting plate 54, and the connecting plate 54 is fixedly connected to the electrode holder 1, so that the driving force of the lifting driving motor 51 is transmitted to the electrode holder 1 to realize the lifting movement thereof.

[0057] For example, in order to further improve the automation level and operational convenience of the electrochemical detection device, intelligent components such as sensors and controllers can also be integrated into the lifting mechanism 5. The sensor is used to monitor the lifting position and speed of the electrode holder 1 in real time, and the controller controls the lifting drive motor 51 according to the feedback signal of the sensor to realize the automation and precise control of the lifting process. For example, a limit switch or a photoelectric sensor can be set to detect the lifting limit position of the electrode holder 1 to avoid damage or safety accidents caused by exceeding the set range.

[0058] In order to facilitate the placement of the sample to be tested and control its automatic rotation during the test process, refer to Figure 1 and Figure 2As shown, the electrochemical detection device also includes a rotating mechanism 6. The rotating mechanism 6 includes a rotating table 61 and a rotating drive mechanism 62. The rotating table 61 is rotatably arranged on the base 4 and is used to place the sample to be detected; the rotating mechanism 6 is arranged on the base 4 and connected to the rotating table 61, and is configured to drive the rotating table 61 to rotate. Among them, the rotating table 61 can be provided with a cavity and serve as a container for the sample to be detected; the rotating drive mechanism 62 can use a pan-tilt motor, a stepper motor or a servo motor as a power source, and reduce the speed and increase the torque through a reducer to achieve smooth rotation of the rotating table 61. The motor of the rotating drive mechanism 62 transmits power to the rotating table 61 through gear transmission, belt transmission or direct drive.

[0059] Exemplarily, the rotary drive mechanism 62 is equipped with a control system, including a controller, a sensor and a feedback device. The controller controls the rotation of the motor according to a preset program or external instructions; the sensor monitors the position and speed of the rotary table 61 in real time; and the feedback device transmits the sensor signal to the controller to achieve closed-loop control.

[0060] Last but not least, the above embodiments can be used in combination as needed to achieve a combined use effect. Exemplarily, the working principle of the electrochemical detection device is: using the electrochemical principle, the detection electrode 3 contacts the sample to be detected and undergoes an oxidation-reduction reaction to generate an electrochemical signal, which is collected by the electrode head 2. These electrochemical signals are transmitted to the processing module or detection circuit through the electrode head 2 and the electrode holder 1, and then amplified, processed and analyzed to finally obtain the electrochemical property information of the sample to be detected. Its workflow is as follows:

[0061] First, the operator prepares the sample to be tested according to the detection requirements and places the sample to be tested at the designated position on the rotating table 61; the motor of the rotating mechanism 6 drives the screw 52 to rotate, thereby driving the nut 53 and the connecting plate 54 to move along the direction of the screw 52, ​​and the electrode holder 1 also moves up and down accordingly, until the electrode head 2 contacts the sample to be tested, and the lifting mechanism 5 stops moving to ensure good contact between the electrode head 2 and the sample to be tested; then, the rotating mechanism 6 is started, and the motor of the rotating drive mechanism 62 is started to transmit power to the rotating table 61, and the rotating table 61 starts to rotate, driving the sample to be tested to rotate. During the rotation process, the electrochemical detection device can collect electrochemical signals from the sample to be detected and analyze the electrochemical signals. For example, when the electrode head 2 contacts the sample to be detected and an oxidation-reduction reaction occurs, an electrochemical signal is generated; these signals are transmitted to the detection circuit through the electrode holder 1, and after amplification, filtering and other processing, they are transmitted to a computer or data recording device; the computer or data recording device analyzes and processes the received electrochemical signals to obtain electrochemical property information (such as potential, current, conductivity, etc.) of the sample to be detected; the computer or data recording device outputs the analysis results in the form of charts, curves or numbers, so that the operator can evaluate and judge the electrochemical properties of the sample to be detected based on the analysis results; at the same time, the analysis results can also be recorded and saved in a database for subsequent data analysis and comparison.

[0062] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An electrochemical detection device, characterized in that: include: Electrode holder and electrode head; The electrode seat is provided with a first magnetic attraction component; The electrode head is used to connect the detection electrode and is provided with a second magnetic attraction component, and the second magnetic attraction component is used to be magnetically connected to the first magnetic attraction component so that the electrode head can be detachably mounted on the electrode seat; The first magnetic attraction component and the second magnetic attraction component are respectively a magnet and a magnetic metal; or both are magnets, and two ends with opposite magnetic properties are arranged opposite to each other.

2. The electrochemical detection device according to claim 1, characterized in that: A conductive element is provided on the top of the electrode seat; The bottom of the electrode head is provided with a connection port, and the electrode head is provided with a conductive portion arranged toward the connection port; When the electrode head is mounted on the electrode seat, the conductive portion contacts the conductive element so that the electrode head and the electrode seat are electrically connected.

3. The electrochemical detection device according to claim 2, characterized in that: A cavity is provided inside the electrode seat, and a connecting wire is provided in the cavity, and the connecting wire is electrically connected to the conductive element.

4. The electrochemical detection device according to claim 1, characterized in that: The bottom of the electrode head is provided with a positioning protrusion, the electrode seat is provided with a positioning groove, and the top end surface of the electrode seat is a horizontal plane; when the electrode head is installed on the electrode seat, the positioning protrusion is inserted into the interior of the positioning groove to fix the electrode head and the electrode seat relatively in the horizontal direction.

5. The electrochemical detection device according to claim 1, characterized in that: The electrode head is provided with a limiting surface. When the electrode head is installed on the electrode seat, the top of the electrode seat is located inside the connecting port and contacts the limiting surface, so that the electrode head and the electrode seat are relatively fixed in the horizontal direction.

6. The electrochemical detection device according to claim 1, characterized in that: The bottom of the electrode head is also provided with a socket, and the electrode head is provided with a plug arranged opposite to the socket. The detection electrode is detachably connected to the plug after passing through the socket.

7. The electrochemical detection device according to claim 1, characterized in that: The detection electrode is a printed electrode.

8. The electrochemical detection device according to claim 1, characterized in that: The electrochemical detection device also includes a base and a lifting mechanism; the base is used to place the sample to be detected; the electrode seat is arranged on the base so as to be movable and retractable; the lifting mechanism is connected to the electrode seat and is configured to drive the electrode seat to move up and down.

9. The electrochemical detection device according to claim 8, characterized in that: The base is provided with a first mounting plate and a second mounting plate spaced apart from each other at the upper and lower parts, the first mounting plate and the second mounting plate are provided with guide holes, the electrode holder is in a straight cylindrical shape and is arranged in the guide hole so as to be movable in a lifting manner, and the electrode holder is circumferentially fixed in the guide hole; The lifting mechanism includes a motor, a screw rod, a nut and a connecting plate; the motor is fixedly connected to the first mounting plate and the second mounting plate, the screw rod is drivingly connected to the motor, the nut is connected to the screw rod and fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the electrode holder.

10. The electrochemical detection device according to claim 1, characterized in that: The electrochemical detection device also includes a base and a rotating mechanism; the rotating mechanism includes a rotating table and a rotating drive mechanism, the rotating table is rotatably arranged on the base and is used to place the sample to be detected; the rotating mechanism is arranged on the base and connected to the rotating table, and is configured to drive the rotating table to rotate.

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