Electrochemical detection device

Abstract

The utility model 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, in particular to an electrochemical detection device. BACKGROUND

[0002] As a high-sensitivity and high-precision analysis method, electrochemical detection has been widely used in the fields of analytical chemistry, biology and environmental monitoring. The core is to generate a measurable electrical signal through the electrochemical interaction between the electrode and the target molecule, and then to qualitatively and quantitatively analyze the target molecule. However, the electrode head of most electrochemical detection devices is designed as a fixed type, which is difficult to replace or disassemble once installed.

[0003] Because the electrode head cannot be disassembled, for the electrode head used for a long time, if pollution, blockage or performance degradation occurs, effective maintenance or replacement cannot be performed, thereby affecting the accuracy and stability of the detection 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. The fixed electrode head cannot meet the adaptability requirements, which limits the application range of the electrochemical detection device.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE INVENTION

[0005] (I) Technical problems to be solved

[0006] The embodiments of the present application provide an electrochemical detection device, which can solve the problem of how to improve the convenience of disassembling the electrode head, and thereby improve the accuracy and applicability of electrochemical detection.

[0007] (II) Technical solutions

[0008] To solve the above technical problems, the present application provides the following technical solutions:

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

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

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

[0012] In some embodiments, the top of the electrode holder is provided with a conductive element; the bottom of the electrode head is provided with a connecting port, and the electrode head is provided with a conductive part facing the connecting port; when the electrode head is installed on the electrode holder, the conductive part is in contact with the conductive element to electrically connect the electrode head and the electrode holder.

[0013] In some embodiments, the electrode holder is internally provided with a cavity, and a connecting wire is arranged in the cavity, and the connecting wire is electrically connected with the conductive element.

[0014] In some embodiments, the bottom of the electrode head is provided with a positioning protrusion, the electrode holder is provided with a positioning groove, and the top end face of the electrode holder is a horizontal plane; when the electrode head is installed on the electrode holder, the positioning protrusion is inserted into the inside of the positioning groove to relatively fix the electrode head and the electrode holder in the horizontal direction.

[0015] In some embodiments, the electrode head is provided with a limiting surface, and when the electrode head is installed on the electrode holder, the top of the electrode holder is located inside the connecting port and in contact with the limiting surface to relatively fix the electrode head and the electrode holder in the horizontal direction.

[0016] In some embodiments, the bottom of the electrode head is further provided with a socket, the electrode head is provided with a plug oppositely arranged with the socket, and the detection electrode is detachably connected with the plug after passing through the socket.

[0017] In some embodiments, the detection electrode is a printed electrode.

[0018] In some embodiments, the electrochemical detection device further comprises a base and a lifting mechanism; the base is used for placing a sample to be detected; the electrode holder is movably arranged on the base; the lifting mechanism is connected with the electrode holder and is configured to drive the electrode holder to lift.

[0019] In some embodiments, the base is provided with a first mounting plate and a second mounting plate arranged in an upper and lower interval, 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 movably arranged in the guide holes, and the electrode holder is fixedly arranged in the guide holes in a circumferential direction; the lifting mechanism comprises a motor, a screw rod, a nut and a connecting plate; the motor is fixedly connected with the first mounting plate and the second mounting plate, the screw rod is in transmission connection with the motor, the nut is connected with the screw rod and is fixedly connected with the connecting plate, and the connecting plate is fixedly connected with the electrode holder.

[0020] In some embodiments, the electrochemical detection device further comprises a base and a rotating mechanism; the rotating mechanism comprises a rotating table and a rotating driving mechanism, the rotating table is rotatably arranged on the base and is used for placing a sample to be detected; the rotating mechanism is arranged on the base and is connected with the rotating table and is configured to drive the rotating table to rotate.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the technical scheme provided by the embodiments of the present application brings at least the following beneficial effects:

[0023] The electrochemical detection device of the present application can realize quick connection and separation of the electrode head and the electrode seat through the magnetic attraction connection of the first magnetic attraction component and the second magnetic attraction component. Compared with the existing fixed electrode head, this connection mode not only simplifies the installation and disassembly process of the electrode head and 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, clogged or performance 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 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 taken off from the electrode seat, the electrode replacement operation can be facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 is a perspective view of the electrochemical detection device in the embodiments of the present application;

[0026] Figure 2 is a perspective view of the separation state of the electrode head and the electrode seat in the embodiments of the present application;

[0027] Figure 3 is a perspective view of the electrode head in the embodiments of the present application;

[0028] Figure 4 is a top view of the electrochemical detection device in the embodiments of the present application;

[0029] Figure 5 is Figure 4 a sectional view of section A in FIG. 8.

[0030] Reference signs:

[0031] electrode seat 1, connecting surface 11, first magnetic attraction component 12, conductive element 13, cavity 101, positioning groove 102;

[0032] electrode head 2, shell 21, circuit connecting plate 22, second magnetic attraction component 23, connecting port 201, conductive part 202, positioning convex part 203, limiting surface 204, insertion hole 205, insertion plug 206;

[0033] detection electrode 3, base 4, first mounting plate 41, second mounting plate 42, guide hole 400;

[0034] lifting mechanism 5, lifting drive motor 51, screw rod 52, nut 53, connecting plate 54;

[0035] rotating mechanism 6, rotating table 61, rotating drive mechanism 62.

[0036] The specific embodiments of the present application have been shown in the above-mentioned drawings, and will be described in more detail hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept 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

[0037] In order to make the purpose, technical solutions and advantages of the present application more clear, the embodiments of the present application will be described in more detail hereinafter by referring to the drawings.

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely hereinafter by referring to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0039] The electrode head of the existing electrochemical detection device is usually designed as a fixed type, such as being fixed relative to the electrode seat, and once installed, it is difficult to disassemble or replace. Such fixed design brings inconvenience in actual use.

[0040] Referring to Figures 1 to 5 shown, Figure 1 is a perspective view of an electrochemical detection device in an embodiment of the present application, Figure 2 is a perspective view of an electrode head and an electrode seat in a separated state in an embodiment of the present application, Figure 3 is a perspective view of an electrode head in an embodiment of the present application, Figure 4 is a top view of an electrochemical detection device in an embodiment of the present application, Figure 5 is Figure 4 a sectional view of section A in

[0041] To solve the above technical problems, the embodiment provides an electrochemical detection device, as shown in the accompanying drawings, comprising an electrode holder 1 and an electrode head 2. Figure 1 As shown in the accompanying drawings, the electrode holder 1 is provided with a first magnetic attraction component 12.

[0042] As shown in the accompanying drawings, the electrode head 2 is used for mounting a detection electrode 3 and comprises a second magnetic attraction component 23, which is used for magnetic attraction connection with the first magnetic attraction component 12, so that the electrode head 2 is detachably mounted on the electrode holder 1. Figure 2

[0043] As shown in the accompanying drawings, the electrode head 2 is used for mounting a detection electrode 3 and comprises a second magnetic attraction component 23, which is used for magnetic attraction connection with the first magnetic attraction component 12, so that the electrode head 2 is detachably mounted on the electrode holder 1. Figure 2 Figure 3 As shown in the accompanying drawings, the electrode head 2 is used for mounting a detection electrode 3 and comprises a second magnetic attraction component 23, which is used for magnetic attraction connection with the first magnetic attraction component 12, so that the electrode head 2 is detachably mounted on the electrode holder 1.

[0044] Exemplarily, the first magnetic attraction component 12 and the second magnetic attraction component 23 are a magnet and a magnetic metal respectively, or are both magnets, and the two ends with opposite magnetic properties are oppositely arranged; the first magnetic attraction component 12 and the second magnetic attraction component 23 can be fixed in the interiors of the electrode holder 1 and the electrode head 2 respectively.

[0045] The electrochemical detection device of the above technical solution magnetically attracts and 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 through magnetic attraction in working and separated from the electrode holder 1 by overcoming the magnetic attraction force in dismounting, thereby improving the convenience of replacing the electrode head 2; since the electrode head 2 is convenient to replace, compared with the design of the existing fixed electrode head 2, the electrode head 2 can be repaired or replaced in time when the electrode head 2 is polluted, blocked or performance is degraded, thereby improving the electrochemical detection accuracy; at the same time, different types of electrode heads 2 can be replaced according to different detection environments, sample types and detection requirements, so as to improve the applicability of electrochemical detection.

[0046] Exemplarily, the electrode holder 1 is provided with a connecting surface 11 for connecting the electrode head 2, and the first magnetic attraction component 12 is fixed on the inner side of the connecting surface 11. The electrode head 2 comprises a shell 21 and a circuit connecting plate 22, the circuit connecting plate 22 and the second magnetic attraction component 23 are fixed in the shell 21, and the circuit connecting plate 22 is used for connecting the detection electrode 3. It can be understood that the circuit connecting plate 22 is responsible for transmitting the electrochemical signal received by the detection electrode 3 to a processing module for processing.

[0047] In order to facilitate power supply to the circuit connecting plate 22 and improve the stability of the cooperation between the electrode head 2 and the electrode holder 1, referring to Figure 2 and Figure 3 ​​As shown, the top of the electrode holder 1 is provided with a connection surface 11, and a conductive element 13 is arranged on the connection surface 11; the bottom of the shell 21 is provided with a connection port 201, and the circuit connection plate 22 is provided with a conductive part 202 facing the connection port 201; when the electrode tip 2 is placed on the connection surface 11, the top of the electrode holder 1 is inserted into the connection port 201, and the conductive part 202 contacts the conductive element 13 to electrically connect the circuit connection plate 22 and the conductive element 13. Among them, the connection surface 11 provides a stable support platform for the electrode tip 2; the conductive element 13 and the conductive part 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 plate 22 and the electrode holder 1 to be unhindered; 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 part 202 of the circuit connection plate 22. The above arrangement makes the conductive element 13 and the conductive part 202 form a close contact when the electrode tip 2 is placed on the connection surface 11, which not only ensures the stable transmission of electrochemical signals, but also provides sufficient mechanical support, combined with magnetic attraction, to enable the electrode tip 2 to 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 plate 22 and the electrode holder 1, allowing electrochemical signals to be transmitted and processed within 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 tip 2, and the user only needs to remove the electrode tip 2 from the connection surface 11 and then replace it with a new electrode tip 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 is required, making the use of the electrochemical detection device more convenient and efficient. In addition, after the electrode tip 2 is removed from the electrode holder 1, the replacement operation of the detection electrode 3 can be easily performed.

[0048] In order to make the product structure more modular, refer to Figure 5 As shown, the inside of the electrode holder 1 is provided with a cavity 101, and a connection line is arranged in the cavity 101, which is electrically connected with the conductive element 13, and the connection line is used for transmitting power and signals. The cavity 101 provides sufficient space for the connection line, ensuring that the arrangement of the connection line will not be disturbed by the external environment, and will not pull the connection line during the lifting process. In practical application, the cavity 101 inside the electrode holder 1 and the arrangement of the connection line can be customized according to specific electrochemical detection needs. For example, for detection devices that need to transmit high-frequency electrochemical signals, a more fine and dense connection line arrangement can be used to reduce signal attenuation and interference during 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.

[0049] For example, referring to Figure 5 As shown, the cavity 101 is located below the conductive element 13 and extends downward, so that the connecting line can extend downward and protrude from the bottom of the electrode seat 1, thereby avoiding interference with the operation of other components and making the electrochemical detection device work more stable and reliable.

[0050] In order to improve the stability of the cooperation between the electrode tip 2 and the electrode seat 1, referring to Figure 2 and Figure 3 As shown, the bottom of the shell 22 is provided with a positioning protrusion 203, and the electrode seat 1 is provided with a positioning groove 102 on the connecting surface 11, and the connecting surface 11 is a horizontal surface; when the electrode tip 2 is arranged on the connecting surface 11, the positioning protrusion 203 is inserted into the inside of the positioning groove 102, so that the electrode tip 2 and the electrode seat 1 are relatively fixed in the horizontal direction. Among them, the positioning protrusion 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 seat 1, so as to ensure that the two can be closely matched. When the electrode tip 2 and the electrode seat 1 are matched, the positioning protrusion 203 is automatically aligned and inserted into the inside of the positioning groove 102, realizing the relative fixation of the electrode tip 2 and the electrode seat 1 in the horizontal direction, and reducing the risk of displacement caused by vibration or external force. The gap between the positioning protrusion 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 convenient disassembly, the side walls of the positioning protrusion 203 and the positioning groove 102 can be designed to have a certain inclination angle or elasticity, so as to be easily separated when needed.

[0051] In order to improve the stability of the cooperation between the electrode tip 2 and the electrode seat 1, referring to Figure 3 and Figure 5 As shown, the electrode tip 2 is provided with a limiting surface 204, and when the electrode tip 2 is arranged on the connecting surface 11, the top of the electrode seat 1 is located inside the connecting port 201 and contacts the limiting surface 204, so that the electrode tip 2 and the electrode seat 1 are relatively fixed in the horizontal direction. For example, the limiting surface 204 is the inner side surface of the connecting port 201 and extends towards the electrode seat 1 to fully contact the electrode seat 1.

[0052] In order to facilitate the installation of the detection electrode 3, referring to Figure 3 and Figure 5As shown, the bottom of the shell 21 is also provided with a jack 205, and the circuit connecting plate 22 is provided with a plug 206 arranged opposite to the jack 205. The detection electrode 3 is detachably connected with the plug 206 through the jack 205, so as to be electrically connected with the circuit connecting plate 22. The shape, size and position of the jack 205 need to be ensured to match the plug 206 on the circuit connecting plate 22; the detection electrode 3 is connected with the circuit connecting plate 22 and the electrode holder 1 through the jack 205 and the plug 206, which can be replaced and selected according to the detection environment, sample type and detection requirement. Before detection, the detection electrode 3 passes through the jack 205 and is inserted into the plug 206, so as to be electrically connected with the circuit connecting plate 22. This connection mode not only simplifies the replacement process of the detection electrode 3, but also improves the flexibility and applicability of the electrochemical detection device. Users can select appropriate detection electrodes 3 according to specific detection requirements, and easily connect them to the device.

[0053] For example, the detection electrode 3 is a printed electrode. The printed electrode is an electrode formed by depositing conductive materials (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, etc. In the 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 molecular substances, a miniaturized printed electrode can be used to improve the sensitivity and accuracy of detection. For an electrochemical sensor that needs to detect macromolecular substances or biological samples, a printed electrode with a larger area can be used to increase the effective area and signal strength of detection.

[0054] 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 separated from the sample to be detected, refer to Figure 1 and Figure 2 As shown, the electrochemical detection device further comprises a base 4 and a lifting mechanism 5; the base 4 is used to place the sample to be detected, and 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 movably arranged on the base 4; the lifting mechanism 5 is connected with the electrode holder 1 and is configured to drive the electrode holder 1 to lift. 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.

[0055] In one embodiment of the above-mentioned lifting mechanism 5, refer to 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 upward and downward, and 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 movably arranged in the guide hole 400, and the electrode holder 1 is fixed in the guide hole 400 in the circumferential direction, for example, by making the electrode holder 1 and the guide hole 400 both in an elliptical shape, a square shape or other non-circular shape; the lifting mechanism 5 includes a lifting drive motor 51, a lead screw 52, a nut 53 and a connecting plate 54; the lifting drive motor 51 is fixedly connected with the first mounting plate 41 and the second mounting plate 42, the lead screw 52 is in transmission connection with the lifting drive motor 51, the nut 53 is connected with the lead screw 52 and is fixedly connected with the connecting plate 54, and the connecting plate 54 is fixedly connected with the electrode holder 1. When the lifting mechanism 5 works, the electrode drive lead screw 52 rotates, and since the nut 53, the connecting plate 54 and the electrode holder 1 are fixed as a whole, and the electrode holder 1 is fixed in the circumferential direction by the guide hole 400, the nut 53 can automatically lift during the rotation of the lead screw 52, thereby driving the detection electrode 3 to automatically lift. Among them, the first mounting plate 41 and the second mounting plate 42 of the base 4 which are spaced apart upward and downward provide a stable support structure for the lifting mechanism 5; the lifting drive motor 51 in the lifting mechanism 5 serves as a power source, and its model and power should be selected according to the overall size, load capacity and lifting speed of the electrochemical detection device and other requirements. The lifting drive motor 51 is connected with the lead screw 52 through a transmission device (such as a speed reducer, a shaft coupling, etc.), so as to convert the rotary motion of the lifting drive motor 51 into the linear motion of the lead screw 52. The lead screw 52 and the nut 53 are in a precise fitting mode, so as to ensure the stability and accuracy of the lifting process. At the same time, the nut 53 is fixedly connected with the connecting plate 54, and the connecting plate 54 is fixedly connected with the electrode holder 1, so that the driving force of the lifting drive motor 51 is transmitted to the electrode holder 1, and the lifting motion of the electrode holder 1 is realized.

[0056] For example, in order to further improve the automation level and operation convenience of the electrochemical detection device, a sensor and a controller and other intelligent components can also be integrated in 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, so as to realize the automation and accurate control of the lifting process. For example, a limit switch or a photoelectric sensor can be arranged to detect the lifting limit position of the electrode 3 holder 1, so as to avoid damage or safety accidents caused by exceeding the set range.

[0057] In order to facilitate the placement of the sample to be detected and control the automatic rotation thereof during the detection process, refer to Figure 1 and Figure 2As shown, the electrochemical detection device further comprises a rotating mechanism 6. The rotating mechanism 6 comprises a rotating table 61 and a rotating driving 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 is connected with the rotating table 61 and is configured to drive the rotating table 61 to rotate. Among them, the rotating table 61 can be opened to form a cavity and is used as a container for the sample to be detected; the rotating driving mechanism 62 can use a gimbal motor, a stepper motor or a servo motor as a power source, and through a reducer to reduce the rotating speed and increase the torque, so as to realize the stable rotation of the rotating table 61. The motor of the rotating driving mechanism 62 transmits power to the rotating table 61 through gear transmission, belt transmission or direct drive.

[0058] For example, the rotating driving 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 the preset program or external instruction; the sensor monitors the position and speed of the rotating table 61 in real time; the feedback device transmits the signal of the sensor to the controller to realize closed-loop control.

[0059] Finally, but equally important, the above-mentioned embodiments can be used in combination as needed to achieve a combined use effect. For example, the working principle of the electrochemical detection device is as follows: using the principle of electrochemistry, 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, and finally the electrochemical property information of the sample to be detected is obtained. The working process is as follows:

[0060] First, the operator first according to the detection requirements, ready to be detected sample, to be detected sample placed in the designated position on the rotating table 61; the motor of the rotating mechanism 6 drives the screw rod 52 to rotate, and then drives the nut 53 and the connecting plate 54 to move along the direction of the screw rod 52, the electrode holder 1 also moves up and down, until the electrode head 2 contacts the sample to be detected, the lifting mechanism 5 stops moving, ensuring good contact between the electrode head 2 and the sample to be detected; then, the rotating mechanism 6 starts, the motor of the rotating drive mechanism 62 starts, and power is transmitted to the rotating table 61, the rotating table 61 starts to rotate, driving the sample to be detected to rotate. In the rotation process, the electrochemical detection device can collect and analyze the electrochemical signals of the sample to be detected. For example, when the electrode head 2 contacts the sample to be detected and a redox 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 the computer or data recording device. The computer or data recording device analyzes and processes the received electrochemical signals to obtain the 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, etc. so that the operator can evaluate and judge the electrochemical properties of the sample to be detected according to the analysis results. At the same time, the analysis results can also be recorded and saved to the database for subsequent data analysis and comparison.

[0061] The above only describes optional embodiments of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, 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 by, The utility model relates to an electrode seat and electrode head, the electrode seat is provided with a first magnetic attraction component, the electrode head is used for connecting detection electrode, and is provided with a second magnetic attraction component, the second magnetic attraction component is used for magnetic attraction connection with the first magnetic attraction component, so that the electrode head is detachably installed on the electrode seat. The top of the electrode seat is provided with a conductive element; The bottom of the electrode head is provided with a connecting port, and the electrode head is provided with a conductive part facing the connecting port; When the electrode head is installed on the electrode seat, the conductive part contacts the conductive element to electrically connect the electrode head and the electrode seat.

2. The electrochemical detection device of claim 1, wherein, The electrode seat is internally provided with a cavity, and a connecting line is arranged in the cavity and electrically connected with the conductive element. The bottom of the electrode head is provided with a positioning convex part, the electrode seat is provided with a positioning recess, and the top end face of the electrode seat is a horizontal plane; when the electrode head is installed on the electrode seat, the positioning convex part is inserted into the inside of the positioning recess to relatively fix the electrode head and the electrode seat in the horizontal direction. The electrode head is provided with a limiting surface, and 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 to relatively fix the electrode head and the electrode seat in the horizontal direction.

3. The electrochemical detection device of claim 2, wherein, The bottom of the electrode head is further provided with a jack, and the electrode head is provided with a plug oppositely arranged with the jack, and the detection electrode is detachably connected with the plug after passing through the jack.

4. The electrochemical detection device of claim 1, wherein, The detection electrode is a printed electrode.

5. The electrochemical detection device of claim 2, wherein, The electrochemical detection device further comprises a base and a lifting mechanism; the base is used for placing a sample to be detected; the electrode seat is movably arranged on the base; the lifting mechanism is connected with the electrode seat and is configured to drive the electrode seat to move up and down.

6. The electrochemical detection device of claim 1, wherein, The base is provided with a first mounting plate and a second mounting plate arranged in an upper and lower spaced manner, 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 movably arranged in the guide holes, and the electrode seat is fixedly arranged in the guide holes in a circumferential direction; 7. The electrochemical detection device of claim 1, wherein, The lifting mechanism comprises a motor, a screw rod, a nut and a connecting plate; the motor is fixedly connected with the first mounting plate and the second mounting plate, the screw rod is in transmission connection with the motor, the nut is connected with the screw rod and is fixedly connected with the connecting plate, and the connecting plate is fixedly connected with the electrode seat.

8. The electrochemical detection device of claim 1, wherein, The electrochemical detection device further comprises a base and a rotating mechanism; the rotating mechanism comprises a rotating table and a rotating driving mechanism, the rotating table is rotatably arranged on the base and is used for placing a sample to be detected; the rotating mechanism is arranged on the base and is connected with the rotating table and is configured to drive the rotating table to rotate.

9. The electrochemical detection device of claim 8, wherein, ​ ​ 10. The electrochemical detection device of claim 1, wherein, ​

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