Nucleic acid electrophoresis device

Abstract

The utility model provides a nucleic acid electrophoresis device, and belongs to the technical field of biological analysis and testing. The nucleic acid electrophoresis device comprises a sensor assembly and a gel electrophoresis assembly. The gel electrophoresis assembly comprises an electrophoresis tank, and a standard color changing area is arranged in the electrophoresis tank. The sensor assembly comprises a back plate and a color code sensor, the color code sensor is detachably connected with any part of the back plate, and an induction port of the color code sensor faces the standard color changing area. The color code sensor is configured to transmit a shutdown electric signal to the gel electrophoresis assembly when sensing that the standard color changing area changes into a set color. The gel electrophoresis assembly is configured to stop after receiving the stop electric signal. According to the method, electrophoresis can be automatically terminated at a proper time point, the influence on an experimental result caused by human intervention is reduced, and the quality of the experimental result is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of biological analysis and testing, and in particular relates to a nucleic acid electrophoresis device. Background Art

[0002] Before conducting nucleic acid analysis and testing, the nucleic acid and protein in the sample DNA (DeoxyriboNucleic Acid) must be separated before the nucleic acid can be further analyzed and tested.

[0003] In the related art, polyacrylamide gel electrophoresis is used to separate nucleic acids and proteins in sample DNA. When the sample DNA is placed in the gel, it will be affected by the electric field, causing the nucleic acid to migrate from the negative electrode to the positive electrode. Since polyacrylamide gel electrophoresis has a molecular screening effect, proteins and nucleic acids can be separated. At the same time, bromophenol blue indicator is added to the sample. During electrophoresis, because the bromophenol blue indicator will also migrate from the negative electrode to the positive electrode, and its migration speed is faster than that of the nucleic acid, it can show the front position of the separated nucleic acid in the gel. This allows the experimenter to monitor the migration of the separated nucleic acid and use this as a signal to stop electrophoresis.

[0004] However, when to stop electrophoresis is entirely up to the experimenter. If the electrophoresis is stopped too early, the sample is not separated properly, and the sample fragment size cannot be analyzed. If the electrophoresis is stopped too late, the sample may have run out of the gel, resulting in no sample bands in the gel for analysis. Utility Model Content

[0005] The disclosed embodiment provides a nucleic acid electrophoresis device, which can solve the problem that the quality of experimental results is affected by inaccurate manual judgment of the electrophoresis termination time. The technical solution is as follows:

[0006] The disclosed embodiment provides a nucleic acid electrophoresis device, comprising a sensor assembly and a gel electrophoresis assembly. The gel electrophoresis assembly comprises an electrophoresis tank, wherein the electrophoresis tank has a standard color change area. The sensor assembly comprises a back plate and a color mark sensor, wherein the color mark sensor is detachably connected to any part of the back plate, and the sensing port of the color mark sensor faces the standard color change area. The color mark sensor is configured to transmit a shutdown electrical signal to the gel electrophoresis assembly when sensing that the standard color change area changes to a set color. The gel electrophoresis assembly is configured to shut down after receiving the shutdown electrical signal.

[0007] In an implementation of the present disclosure, the color mark sensor includes a sensor body and a mounting portion, wherein the sensor body is connected to the mounting portion, and the mounting portion and the back plate are magnetically attracted to each other.

[0008] In another implementation of the present disclosure, the electrophoresis tank has a gel containing space for containing gel, and the inner contour of the gel containing space is a flat plate. The back plate and the gel containing space are parallel to each other.

[0009] In yet another implementation of the present disclosure, the orthographic projection of the outer contour of the standard color-changing area on the plane where the back plate is located is located inside the back plate.

[0010] In another embodiment of the present disclosure, the sensor assembly further includes an indicator light. The color mark sensor is configured to transmit a lighting electrical signal to the indicator light when sensing that the standard color change area changes to a set color. The indicator light is configured to light up after receiving the lighting electrical signal.

[0011] In another implementation of the present disclosure, the nucleic acid electrophoresis device further comprises a connecting structure, wherein the connecting structure is located between the sensor component and the gel electrophoresis component, and the connecting structure is detachably connected to the sensor component and the gel electrophoresis component, respectively.

[0012] In another implementation of the present disclosure, the connection structure includes a sensor connector and an electrophoresis interface. The sensor connector is electrically connected to the color standard sensor, and the electrophoresis interface is electrically connected to the gel electrophoresis assembly. The sensor connector and the electrophoresis interface are detachably electrically connected.

[0013] In another implementation of the present disclosure, the connecting structure comprises an earring and an ear hole. The earring is connected to the sensor assembly, the ear hole is located on the outer wall of the gel electrophoresis assembly, and the inner hole of the earring corresponds to the ear hole.

[0014] In another implementation of the present disclosure, the connecting structure comprises a first magnetic member and a second magnetic member, wherein the first magnetic member is connected to the sensor assembly, the second magnetic member is connected to the gel electrophoresis assembly, and the first magnetic member and the second magnetic member are magnetically attracted to each other.

[0015] In another embodiment of the present disclosure, the sensor assembly further comprises a sensor switch for turning on or off the sensor assembly, and the sensor switch is connected to a power supply of the sensor assembly. The gel electrophoresis assembly further comprises an electrophoresis switch for turning on or off the gel electrophoresis assembly, and the electrophoresis switch is connected to a power supply of the gel electrophoresis assembly.

[0016] The technical solution provided by the embodiments of the present disclosure brings the following beneficial effects:

[0017] The nucleic acid electrophoresis device provided by the embodiment of the present disclosure includes a sensor component and a gel electrophoresis component. Since the gel electrophoresis component includes an electrophoresis tank for containing electrophoresis liquid, the electrophoresis tank has a standard color change area and a gel accommodating space for accommodating gel, the sensing port of the color mark sensor faces the standard color change area, and the gel can be accommodated through the gel accommodating space, and the test sample and the indicator are loaded on the gel and electrophoresis is performed. When the gel electrophoresis component performs electrophoresis, the indicator migrates and displays the front position of the test sample in the gel. The sensor component includes a back plate and a color mark sensor. Since the color mark sensor is detachably connected to any part of the back plate, and the sensing port of the color mark sensor faces the standard color change area, the color mark sensor can be placed in a suitable sensing position and fixed by adjusting its position on the back plate, and then sense whether the standard color change area on the gel changes to a set color. After the color mark sensor senses that the standard color change area changes to a set color, it will transmit a shutdown electrical signal to the gel electrophoresis component, so that the gel electrophoresis component is shut down, thereby realizing the automatic shutdown of the gel electrophoresis component.

[0018] That is to say, the nucleic acid electrophoresis device provided by the embodiment of the present disclosure can automatically terminate electrophoresis at an appropriate time point, reduce the impact of human intervention on the experimental results, and has the effect of improving the quality of the experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, 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 disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 is a schematic structural diagram of a nucleic acid electrophoresis device provided by an embodiment of the present disclosure;

[0021] Figure 2 is a structural schematic diagram of a connecting structural member provided by an embodiment of the present disclosure;

[0022] Figure 3 is a structural schematic diagram of another connecting structural member provided by an embodiment of the present disclosure;

[0023] Figure 4 is a schematic structural diagram of another nucleic acid electrophoresis device provided by an embodiment of the present disclosure;

[0024] Figure 5 This is a schematic diagram of the structure of another nucleic acid electrophoresis device provided in an embodiment of the present disclosure.

[0025] The symbols in the figure mean the following:

[0026] 10. Sensor components;

[0027] 101, back panel; 102, color mark sensor; 1021, sensor body; 1022, mounting portion; 103, indicator light; 104, sensor switch;

[0028] 20. Gel electrophoresis components;

[0029] 201, electrophoresis tank; 2011, standard color change area; 2012, gel storage space; 202, electrophoresis switch; 203, control panel;

[0030] 30. Connecting structural parts;

[0031] 301, sensor connector; 302, electrophoresis interface; 303, earring; 304, ear hole; 305, first magnetic attraction component; 306, second magnetic attraction component. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0033] The present disclosure provides a nucleic acid electrophoresis device, Figure 1 Schematic diagram of the structure of the nucleic acid electrophoresis device provided by the embodiment of the present disclosure. Figure 1 As shown, the nucleic acid electrophoresis device includes a sensor component 10 and a gel electrophoresis component 20. The gel electrophoresis component 20 includes an electrophoresis tank 201, and a standard color change area 2011 is provided in the electrophoresis tank 201. The sensor component 10 includes a back plate 101 and a color mark sensor 102, and the color mark sensor 102 is detachably connected to any part of the back plate 101, and the sensing port of the color mark sensor 102 faces the standard color change area 2011. The color mark sensor 102 is configured to transmit a shutdown electrical signal to the gel electrophoresis component 20 when sensing that the standard color change area 2011 changes to a set color. The gel electrophoresis component 20 is configured to shut down after receiving the shutdown electrical signal.

[0034] It is worth noting that when the gel electrophoresis assembly 20 performs electrophoresis, the indicator can migrate and display the front position of the test sample in the gel of the standard color change area 2011. Since the color mark sensor 102 is detachably connected to any part of the back plate 101, and the sensing port of the color mark sensor 102 faces the standard color change area 2011, before starting electrophoresis, the color mark sensor 102 can be manually adjusted to a suitable position on the back plate 101 and fixed, so that during electrophoresis, the color mark sensor 102 can sense whether the standard color change area 2011 changes to a set color. For example, using bromophenol blue as an indicator, the sensing color set by the color mark sensor 102 is blue. When the color mark sensor 102 senses that the standard color change area 2011 changes to the set blue, it will transmit a shutdown electrical signal to the gel electrophoresis assembly 20, so that the gel electrophoresis assembly 20 is shut down, thereby realizing the automatic shutdown of the gel electrophoresis assembly 20.

[0035] That is to say, the nucleic acid electrophoresis device provided by the embodiment of the present disclosure can automatically terminate electrophoresis at an appropriate time point, reduce the impact of human intervention on the experimental results, and has the effect of improving the quality of the experimental results.

[0036] It is worth noting that the color mark sensor 102 can convert the information that the sensed standard color change area 2011 changes to a set color into a shutdown electrical signal, and the color mark sensor 102 is in a continuous sensing state during operation until it senses that the gel in the standard color change area 2011 changes to a set color, and then immediately converts the sensed color change information into a shutdown electrical signal, and transmits the shutdown electrical signal to the gel electrophoresis component 20, so that the gel electrophoresis component 20 automatically stops electrophoresis.

[0037] In this embodiment, the color mark sensor 102 includes a sensor body 1021 and a mounting portion 1022. The sensor body 1021 is connected to the mounting portion 1022. The mounting portion 1022 and the back plate 101 are magnetically attracted to each other.

[0038] Since the mounting portion 1022 can be magnetically adjusted to any position on the back plate 101, and the mounting portion 1022 is connected to the sensor body 1021, the sensing port of the color code sensor 102 can be custom-adjusted toward the position on the standard color change area 2011, thereby achieving the effect of automatically controlling the nucleic acid electrophoresis device to shut down at an appropriate time point in the experiment.

[0039] For example, in the electrophoresis operation, bromophenol blue indicator is a commonly used indicator, which can mark the front position of the sample in the standard color change area 2011 as blue. When the bromophenol blue indicator migrates to 1 / 3 of the bottom of the standard color change area 2011, it is generally considered to be a suitable time point to end the electrophoresis. Then, the area sensed by the color mark sensor 102 is first adjusted to 1 / 3 of the bottom of the standard color change area 2011 by the suction of the magnetic material, and then the electrophoresis is started. When the bromophenol blue indicator in the standard color change area 2011 reaches 1 / 3 of the bottom, the color mark sensor 102 senses the color signal of the indicator and immediately transmits a shutdown electrical signal to the gel electrophoresis component 20 to shut down the nucleic acid electrophoresis device.

[0040] Optionally, one side of the mounting portion 1022 is first welded to the sensor body 1021 by electric welding, and the other side of the mounting portion 1022 is magnetically connected to the back plate 101 while the sensor body 1021 is always facing the standard color change area 2011. This ensures that the mounting portion 1022 can be adjusted to a desired position on the back plate 101, and the sensing port of the sensor body 1021 can always face the standard color change area 2011.

[0041] Optionally, at least one of the back plate 101 and the mounting portion 1022 is a magnet, and the other is a metal that can be attracted by the magnet, so as to achieve mutual magnetic attraction between the back plate 101 and the mounting portion 1022. Alternatively, both the back plate 101 and the mounting portion 1022 are magnets, which can also achieve mutual magnetic attraction between the back plate 101 and the mounting portion 1022.

[0042] In this embodiment, the electrophoresis tank 201 has a gel containing space 2012 for containing gel, and the inner contour of the gel containing space 2012 is a flat plate. The back plate 101 and the gel containing space 2012 are parallel to each other.

[0043] It is worth mentioning that the standard color change area 2011 is located in the gel containing space 2012. The gel containing space 2012 is a transparent cavity with one side open, which is used to prepare and contain gel. The prepared gel together with the gel containing space 2012 is first completely placed in the electrophoresis tank 201 and fixed, and then the test sample and indicator are simultaneously loaded from the open surface of the gel containing space 2012, and finally the electrolyte is poured into the electrophoresis tank 201 for electrophoresis.

[0044] Because the electrophoresis tank 201 is a tank body with transparent surfaces, and the gel containing space 2012 and the back plate 101 are both flat and parallel to each other, the color mark sensor 102 placed on the plate can more accurately sense whether the color of the standard color change area 2011 in the gel containing space 2012 changes to the set color.

[0045] Exemplarily, the gel containing space 2012 is a transparent rectangular block with one side open. Polyacrylamide liquid is usually poured into the gel containing space 2012 to form a gel. At the same time, a sample grid is inserted into the open surface of the gel containing space 2012 and pulled out after the gel solidifies, thereby forming a loading hole for loading samples and indicators to ensure the normal progress of the electrophoresis operation.

[0046] In this embodiment, the orthographic projection of the outer contour of the standard color changing area 2011 on the plane where the back plate 101 is located is located inside the back plate 101 .

[0047] Since the entire orthographic projection of the inner contour of the standard color changing area 2011 on the plane where the back plate 101 is located will not exceed the area range of the back plate 101, when the color mark sensor 102 is moved and adjusted on the back plate 101, there will be no blind area at the sensing port of the color mark sensor 102 on the surface opposite to the standard color changing area 2011 and the back plate 101.

[0048] Exemplarily, the area of ​​the orthographic projection of the inner contour of the standard color-changing region 2011 on the plane of the back plate 101 is smaller than the area of ​​the same surface of the back plate 101. Since the color mark sensor 102 can be connected at any position on the back plate 101, the orientation of the sensing port of the color mark sensor 102 can be adjusted to face any position on the standard color-changing region 2011, so that the stop time point of the nucleic acid electrophoresis device can be set more flexibly.

[0049] Continue to see Figure 1 In this embodiment, the sensor assembly 10 further includes an indicator light 103. The color mark sensor 102 is configured to transmit a lighting electrical signal to the indicator light 103 when sensing that the standard color change area 2011 changes to a set color. The indicator light 103 is configured to light up after receiving the lighting electrical signal.

[0050] Since the indicator light 103 is configured so that when the color mark sensor 102 senses that the standard color change area 2011 changes to the set color, the color mark sensor 102 transmits a lighting electrical signal to the indicator light 103, the experimenter can more conveniently determine whether the electrophoresis device has stopped the electrophoresis operation by checking whether the indicator light 103 is lit.

[0051] It is worth noting that the indicator light 103 is normally off and lights up after receiving the lighting electrical signal sent by the color mark sensor 102 .

[0052] Optionally, the color mark sensor 102 has a built-in Bluetooth transmitter, and the indicator light 103 has a built-in Bluetooth receiver. Through Bluetooth signal transmission, the color mark sensor 102 transmits a shutdown electrical signal after sensing the indicator color to the indicator light 103, so that the indicator light 103 is lit.

[0053] Optionally, the color mark sensor 102 is connected to the indicator light 103 via a data line. By means of data line signal transmission, the color mark sensor 102 transmits a shutdown electrical signal after sensing the indicator color to the indicator light 103, so that the indicator light 103 is lit.

[0054] Figure 2 is a schematic structural diagram of a connecting structural member 30 provided in an embodiment of the present disclosure, such as Figure 2 As shown, in this embodiment, the nucleic acid electrophoresis device further includes a connecting structure 30. The connecting structure 30 is located between the sensor component 10 and the gel electrophoresis component 20, and the connecting structure 30 is detachably connected to the sensor component 10 and the gel electrophoresis component 20 respectively.

[0055] Since the sensor assembly 10 and the gel electrophoresis assembly 20 are detachably connected via the connecting structure 30 , when the sensor assembly 10 is disassembled and taken away, the gel electrophoresis assembly 20 can still operate normally, so the gel electrophoresis assembly 20 can be selectively used alone.

[0056] like Figure 2 As shown, in some examples, the connecting structure 30 includes a sensor connector 301 and an electrophoresis interface 302 , the sensor connector 301 is electrically connected to the color standard sensor 102 , the electrophoresis interface 302 is electrically connected to the gel electrophoresis assembly 20 , and the sensor connector 301 and the electrophoresis interface 302 are detachably electrically connected.

[0057] Exemplarily, the color code sensor 102 and the gel electrophoresis assembly 20 are connected via the sensor connector 301 and the electrophoresis interface 302, so that the color code sensor 102 can transmit a shutdown electrical signal to the gel electrophoresis assembly 20. When the indicator migrates to the sensing point of the color code sensor 102, the color code sensor 102 outputs an RGB signal, which is transmitted to the gel electrophoresis assembly 20 via the sensor connector 301 and the electrophoresis interface 302, thereby terminating the electrophoresis and realizing the function of the nucleic acid electrophoresis device automatically stopping the electrophoresis at an appropriate time point.

[0058] Figure 3 It is a structural schematic diagram of another connecting structure 30 provided in an embodiment of the present disclosure. In other examples, the connecting structure 30 includes an earring 303 and an ear hole 304. The earring 303 is connected to the sensor component 10, and the ear hole 304 is located on the outer wall of the gel electrophoresis component 20. The inner hole of the earring 303 corresponds to the ear hole 304.

[0059] It is worth noting that the earring 303 and the ear hole 304 have the same aperture, and the sensor assembly 10 and the gel electrophoresis assembly 20 are detachably connected by means of ear axis connection. In this embodiment, the electrical connection between the color standard sensor 102 and the gel electrophoresis assembly 20 is directly realized by Bluetooth connection.

[0060] Figure 4 is a schematic diagram of the structure of another nucleic acid electrophoresis device provided by an embodiment of the present disclosure, such as Figure 4 In this embodiment, the connecting structure 30 includes a first magnetic member 305 and a second magnetic member 306. The first magnetic member 305 is connected to the sensor assembly 10, and the second magnetic member 306 is connected to the gel electrophoresis assembly 20. The first magnetic member 305 and the second magnetic member 306 are magnetically attracted to each other.

[0061] The sensor assembly 10 and the gel electrophoresis assembly 20 are detachably connected by magnetic attraction. In this embodiment, the electrical connection between the color code sensor 102 and the gel electrophoresis assembly 20 is also directly realized by Bluetooth connection.

[0062] See again Figure 1 In this embodiment, the sensor assembly 10 further includes a sensor switch 104 for turning on or off the sensor assembly 10, and the sensor switch 104 is connected to the power supply of the sensor assembly 10. The gel electrophoresis assembly 20 further includes an electrophoresis switch 202 for turning on or off the gel electrophoresis assembly 20, and the electrophoresis switch 202 is connected to the power supply of the gel electrophoresis assembly 20.

[0063] Because the sensor switch 104 has the function of independently controlling the sensor component 10 to be turned on or off, and the electrophoresis switch 202 has the function of independently controlling the gel electrophoresis component 20 to be turned on or off, when the experimenter uses the gel electrophoresis component 20 to perform electrophoresis, the sensor component 10 can also be selectively used according to the needs of the experiment, thereby improving the flexibility in the experiment.

[0064] See also Figure 1 In some examples, the gel containing space 2012 is arranged vertically and horizontally, and the electrophoresis direction of the gel electrophoresis assembly 20 is vertically and horizontally.

[0065] Because the gel containing space 2012 and the back plate 101 are parallel to each other, when the gel containing space 2012 is arranged vertically or horizontally, the back plate 101 is also vertically or horizontally. The color code sensor 102 can adjust its position along the vertical and horizontal directions on the back plate 101, so that the sensor assembly 10 can detect the migration of vertical and horizontal electrophoresis in the gel containing space 2012.

[0066] Figure 5is a schematic diagram of the structure of another nucleic acid electrophoresis device provided in the embodiment of the present disclosure, see Figure 5 In some examples, the gel containing space 2012 is arranged horizontally, and the electrophoresis direction of the gel electrophoresis assembly 20 is horizontal.

[0067] It is worth noting that the back plate 101 is an L-shaped plate composed of two flat plates. The first flat plate on the back plate 101 is fixed perpendicular to the horizontal plane, and the second flat plate on the back plate 101 is fixed parallel to the horizontal plane. The color mark sensor 102 is connected to the second flat plate on the back plate 101, and the sensor body 1021 faces the standard color change area 2011 to sense whether it changes to the set color.

[0068] Because the gel containing space 2012 and the back plate 101 are parallel to each other, when the gel containing space 2012 is arranged horizontally, the second flat plate on the back plate 101 is also horizontal. The color code sensor 102 can adjust its position horizontally on the second flat plate on the back plate 101, so that the sensor assembly 10 can detect the migration of horizontal electrophoresis in the gel containing space 2012.

[0069] Continue to refer Figure 1 In this embodiment, the gel electrophoresis component 20 also includes a control panel 203. The power supply of the gel electrophoresis component 20 is electrically connected to the control panel 203. The control panel 203 is configured so that the voltage and current during electrophoresis and the length of the electrophoresis time can be set through the control panel 203.

[0070] The voltage, current and time of electrophoresis are set by the control panel 203, so that the whole process of electrophoresis can be completed when the gel electrophoresis assembly 20 is used alone.

[0071] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A nucleic acid electrophoresis device, characterized in that: It comprises a sensor component (10) and a gel electrophoresis component (20); The gel electrophoresis assembly (20) comprises an electrophoresis tank (201), wherein the electrophoresis tank (201) has a standard color change area (2011); The sensor assembly (10) comprises a back plate (101) and a color mark sensor (102), wherein the color mark sensor (102) is detachably connected to any part of the back plate (101), and a sensing port of the color mark sensor (102) faces the standard color change area (2011); The color mark sensor (102) is configured to transmit a shutdown electrical signal to the gel electrophoresis component (20) when sensing that the standard color change area (2011) changes to a set color; The gel electrophoresis component (20) is configured to shut down upon receiving the shutdown electrical signal.

2. The nucleic acid electrophoresis device according to claim 1, characterized in that: The color mark sensor (102) comprises a sensor body (1021) and a mounting portion (1022); The sensor body (1021) is connected to the mounting portion (1022); The mounting portion (1022) and the back plate (101) are magnetically attracted to each other.

3. The nucleic acid electrophoresis device according to claim 1, characterized in that: The electrophoresis tank (201) has a gel containing space (2012) for containing gel, and the inner contour of the gel containing space (2012) is a flat plate; The back plate (101) and the gel containing space (2012) are parallel to each other.

4. The nucleic acid electrophoresis device according to claim 1, characterized in that: The orthographic projection of the outer contour of the standard color change area (2011) on the plane where the back plate (101) is located is located inside the back plate (101).

5. The nucleic acid electrophoresis device according to claim 1, characterized in that: The sensor assembly (10) further comprises an indicator light (103); The color mark sensor (102) is configured to transmit a lighting electrical signal to the indicator light (103) when sensing that the standard color change area (2011) changes to a set color; The indicator light (103) is configured to light up after receiving the lighting electrical signal.

6. The nucleic acid electrophoresis device according to claim 1, characterized in that: The nucleic acid electrophoresis device further comprises a connecting structure (30); The connecting structure (30) is located between the sensor component (10) and the gel electrophoresis component (20), and the connecting structure (30) is detachably connected to the sensor component (10) and the gel electrophoresis component (20), respectively.

7. The nucleic acid electrophoresis device according to claim 6, characterized in that: The connecting structure (30) comprises a sensor connector (301) and an electrophoresis interface (302); The sensor connector (301) is electrically connected to the color code sensor (102), the electrophoresis interface (302) is electrically connected to the gel electrophoresis assembly (20), and the sensor connector (301) is electrically connected to the electrophoresis interface (302) in a detachable manner.

8. The nucleic acid electrophoresis device according to claim 6, characterized in that: The connecting structure (30) comprises an earring (303) and an ear hole (304); The earring (303) is connected to the sensor assembly (10), the ear hole (304) is located on the outer wall of the gel electrophoresis assembly (20), and the inner hole of the earring (303) corresponds to the ear hole (304).

9. The nucleic acid electrophoresis device according to claim 6, characterized in that: The connecting structure (30) comprises a first magnetic attraction member (305) and a second magnetic attraction member (306); The first magnetic attraction component (305) is connected to the sensor component (10), the second magnetic attraction component (306) is connected to the gel electrophoresis component (20), and the first magnetic attraction component (305) and the second magnetic attraction component (306) are magnetically attracted to each other.

10. The nucleic acid electrophoresis device according to claim 1, characterized in that: The sensor assembly (10) further comprises a sensor switch (104) for turning on or off the sensor assembly (10), wherein the sensor switch (104) is connected to a power source of the sensor assembly (10); The gel electrophoresis assembly (20) further comprises an electrophoresis switch (202) for turning on or off the gel electrophoresis assembly (20), and the electrophoresis switch (202) is connected to a power source of the gel electrophoresis assembly (20).

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