Reagent tray for reagent detection

Abstract

The utility model relates to the technical field of optical detection, and particularly discloses a reagent tray for reagent detection, which comprises a tray body, a tray cover and a mounting seat connected with the tray body, and the tray cover covers the top of the tray body; the disc body is provided with a liquid inlet, the mounting seat is provided with a containing cavity, and the containing cavity is communicated with the liquid inlet; wherein a puncture structure is arranged on the inner wall of the liquid inlet, a dilution box and a magnetic piece are arranged in the containing cavity, the magnetic piece is connected with the inner wall of the containing cavity in a clamped mode, and the dilution box is limited between the magnetic piece and the puncture structure; the top of the dilution box is provided with a sealing film, the sealing film is located at the bottom end of the puncture structure, the magnetic sheet is provided with a through hole, and the through hole is used for enabling a protruding structure at the top of a magnetic mounting base to penetrate through the through hole to abut against the dilution box to move upwards in the containing cavity under attraction of the magnetic sheet when the mounting base is connected with the magnetic mounting base of an external tester. And the sealing film is ripped open under the action of the puncture structure, and the diluent in the dilution box enters the guide disc body through the puncture structure.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection, in particular to a reagent disc for reagent detection. Background Art

[0002] With the development of detection technology in the biomedical and chemical fields, the degree of automation of reagent detection has been continuously improved. Microfluidic biochemical reagent trays are widely used in medical diagnosis, environmental monitoring and other fields, especially in the efficient and rapid distribution and processing of liquid samples. Existing reagent trays are mostly used to store and transfer various reagents. Usually, during the detection process, the reagents need to be diluted and mixed to ensure the accuracy and reliability of the reaction. However, there are some shortcomings in the existing technical solutions, which affect the detection efficiency and accuracy. At present, the common reagent tray film tearing technologies mainly include the following methods:

[0003] 1. Manually peeled membrane reagent tray water storage cup: In this solution, the surface of the reagent tray water storage cup is usually covered with a sealing film to prevent liquid volatilization or contamination. However, in actual operation, the experimenter needs to manually peel off this film before proceeding. This method is complicated and inefficient, especially when processing multiple samples, and is prone to errors. At the same time, manual peeling may cause liquid splashing, increasing the risk of laboratory environmental contamination;

[0004] 2. Lift-type membrane puncture technology: By adding a transmission system underneath, the reagent cup is lifted upward using the lifting structure to puncture the covering membrane layer. Although this technology can achieve a certain degree of automation, the need for an additional transmission system makes the overall structure more complex, increasing the manufacturing and maintenance costs of the equipment. For operators, the complexity of the transmission system also increases the difficulty of equipment maintenance and reduces equipment reliability.

[0005] 3. Covered membrane puncture technology. Another common membrane puncture solution involves puncturing the membrane through a covering structure. While this method enables automated membrane puncture, its drawback is that it increases the number of components on the reagent tray, complicates the assembly process, and reduces assembly efficiency. Furthermore, the increased number of components increases the overall cost of the equipment and introduces more potential failure points, impacting the stability and consistency of the detection system. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art, especially the deficiencies in automation level, operation convenience and system complexity, and to propose a reagent disc for reagent detection.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A reagent tray for reagent testing comprises a tray body, a tray cover and a mounting base connected to the tray body, wherein the tray cover covers the top of the tray body; the tray body is provided with a liquid inlet, the mounting base is provided with a accommodating chamber, and the accommodating chamber is communicated with the liquid inlet; wherein, the inner wall of the liquid inlet is provided with a puncture structure, a dilution box and a magnetic sheet are provided in the accommodating chamber, the magnetic sheet is engaged with the inner wall of the accommodating chamber and restricts the dilution box between the magnetic sheet and the puncture structure; a sealing film is provided on the top of the dilution box, the sealing film is at the bottom end of the puncture structure, and the magnetic sheet is provided with a perforation, which is used for when the mounting base is connected to the magnetic mounting base of an external tester, under the attraction of the magnetic sheet, the protrusion structure on the top of the magnetic mounting base passes through the perforation to press the dilution box to move upward in the accommodating chamber, and the sealing film is cut under the action of the puncture structure, and the dilution liquid in the dilution box enters the guide tray body through the puncture structure.

[0009] Preferably, the puncture structure includes a puncture blade and abutment walls arranged on both sides of the puncture blade, the puncture blade and the two sets of abutment walls are connected to the inner wall of the liquid inlet, and the two sets of abutment walls enclose to form a diluent channel, which is connected to the flow channel of the disc body.

[0010] Preferably, an enclosing wall is provided on the periphery of the liquid inlet, the top surface of the enclosing wall and the top of the supporting wall are in the same plane, and a liquid inlet channel is opened in the enclosing wall, which is connected to the diluent channel.

[0011] Preferably, multiple sets of locking platforms are provided inside the accommodating cavity, an opening and closing groove is provided on the top of the locking platform, and a card and a protrusion matching the locking platform are provided on the periphery of the magnetic sheet, and the card and the protrusion are adapted to the opening and closing groove; an installation channel is formed between the locking platforms to facilitate the card and the protrusion to be rotated and locked into the opening and closing groove after passing through the installation channel.

[0012] Preferably, the magnetic sheet is provided with one or more groups of limiting holes around the periphery of the through hole, and the limiting holes are used to rotate under the action of external force to be inserted into the opening and closing slots.

[0013] Preferably, the magnetic sheet is an iron sheet.

[0014] Preferably, the inner walls of the multiple groups of engaging platforms are enclosed to form an inner engaging wall mechanism, and the inner engaging wall mechanism is used for positioning the mounting base and the magnetic mounting base when they are mounted.

[0015] Preferably, a curved guide structure is provided at the bottom of the engaging platform.

[0016] Preferably, an anti-rotation structure is provided on the outer periphery of the bottom of the mounting seat; the anti-rotation structure is used to prevent the mounting seat from rotating when the mounting seat is connected to the magnetic mounting seat.

[0017] Preferably, the mounting base is provided with a fixing hole for fixing the mounting base when connected to the magnetic mounting base.

[0018] The beneficial effects of the present invention are as follows: through the design of the puncture structure and the magnetic sheet, the film of the dilution box is automatically punctured during the installation process without manual operation, which simplifies the process and improves the degree of automation; the sealing film effectively prevents the dilution liquid from overflowing and contaminating, ensuring the cleanliness of the detection environment and the accuracy of the detection results; the puncture structure and the magnetic sheet are integrated to reduce the need for an independent transmission system, simplify the structure, make the reagent disc replacement process faster, and improve the overall detection efficiency; reduce mechanical complexity, improve equipment reliability, and reduce production and maintenance costs; the liquid is automatically introduced into the disc body, which is easy to operate and suitable for occasions with high requirements for dilution accuracy. It has a compact structure and effectively reduces assembly and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0020] Figure 1 is a cross-sectional view of a reagent tray provided in an embodiment of the present utility model;

[0021] Figure 2 This is an enlarged view of a portion A of the reagent disc provided in an embodiment of the present utility model;

[0022] Figure 3 is a top view of a reagent tray for reagent testing;

[0023] Figure 4 This is an exploded view of a reagent tray provided in an embodiment of the present utility model;

[0024] Figure 5 It is an exploded view of the reagent tray provided in the embodiment of the present utility model.

[0025] Icons: 1502-reagent tray; 1503-tray body; 1504-mounting seat; 1505-tray cover; 1506-liquid inlet; 1507-accommodating chamber; 1508-puncture structure; 1509-dilution box; 1510-magnetic sheet; 1511-sealing film; 1512-perforation; 1532-puncture blade; 1533-support wall; 1534-dilution liquid channel; 1535-flow channel; 1536-enclosing wall; 1537-liquid inlet channel; 1538-locking platform; 1539-opening and closing groove; 1540-locking protrusion; 1541-limiting hole; 1542-internal locking wall mechanism; 1543-arc guide structure; 1544-anti-rotation structure; 1545-fixing hole. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structures of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] Example 1

[0029] See also Figures 1 to 5 , a reagent tray 1502 for reagent detection provided in this embodiment includes a tray body 1503, a tray cover 1505 and a mounting base 1504, wherein: the tray body 1503 has a space for accommodating reagents, and its top is covered by the tray cover 1505. The function of the tray cover 1505 is to prevent the internal reagents from being contaminated and to maintain the stability of the reagents. A liquid inlet 1506 is provided on the tray body 1503 for introducing a dilution liquid. The mounting base 1504 is connected to the tray body 1503, and a receiving chamber 1507 is provided in the mounting base 1504. The receiving chamber 1507 is communicated with the liquid inlet 1506 of the tray body 1503, and the receiving chamber 1507 is used to place a dilution box 1509 and a magnetic sheet 1510, thereby realizing the automatic addition of the diluent. The tray cover 1505 can be a layer of film.

[0030] In this embodiment, the inner wall of the liquid inlet 1506 is provided with a puncture structure 1508. The puncture structure 1508 is a component with a pointed tip that can puncture the sealing membrane 1511 under the action of an external force. The function of the puncture structure 1508 is to ensure that the reagent disk 1502 automatically punctures the sealing membrane 1511 of the dilution box 1509 during installation, allowing the internal dilution liquid to enter the disk body 1503 and mix with the reagent. The interior of the accommodating chamber 1507 is also provided with a dilution box 1509 and a magnetic sheet 1510. The dilution box 1509 is pre-loaded with dilution liquid. The magnetic sheet 1510 is fixed to the inner wall of the accommodating chamber 1507 by a snap-fit ​​method, thereby confining the dilution box 1509 between the magnetic sheet 1510 and the puncture structure 1508. The design of the magnetic sheet 1510 ensures that the dilution box 1509 remains stable in the mounting seat 1504 and prevents displacement during assembly. The top of the dilution box 1509 is covered with a sealing film 1511, which is used to prevent the diluent from being contaminated or volatilizing before use. The sealing film 1511 is located exactly at the bottom of the puncture structure 1508, ensuring that the sealing film 1511 can be easily punctured when the puncture structure 1508 contacts the dilution box 1509. A perforation 1512 is provided on the magnetic sheet 1510. The function of the perforation 1512 is to allow the protruding structure of the external magnetic mounting seat to pass through the perforation 1512 when the mounting seat 1504 is connected to the magnetic mounting seat of the external testing instrument, thereby achieving the displacement of the dilution box 1509. During the installation process, the magnetic force generated by the magnetic mounting seat attracts the magnetic sheet 1510, causing the protruding structure to pass through the perforation 1512 of the magnetic sheet 1510 and push the dilution box 1509 upward. As dilution cartridge 1509 moves upward, sealing membrane 1511 is punctured by puncture structure 1508, allowing the diluent within dilution cartridge 1509 to enter tray body 1503 through puncture structure 1508, thereby mixing with the reagents. This design greatly simplifies the operation of reagent tray 1502, avoids the hassle of manually tearing the membrane, reduces the risk of splashing and contamination, and improves the automation and safety of laboratory operations.

[0031] Through the above-described embodiment, the present invention enables the dilution box 1509 to automatically puncture the sealing membrane 1511 during installation, allowing the dilution solution to be automatically introduced into the tray body 1503, without requiring manual intervention. Compared to the prior art, the present invention offers the following advantages: During installation or replacement of the reagent tray 1502, the sealing membrane 1511 of the dilution box 1509 can be automatically punctured, eliminating the need for manual membrane tearing and improving the efficiency of the reagent tray 1502. The automated membrane puncture mechanism reduces the frequency of manual operation, thereby reducing the risk of liquid splashing and laboratory environmental contamination. Compared to existing jack-type transmission systems, this embodiment achieves automatic membrane puncture of the dilution box 1509 through the magnetic adsorption and puncture mechanism 1508, eliminating the need for complex mechanical transmission mechanisms and reducing manufacturing and maintenance costs. The dilution box 1509 is secured within the accommodating cavity 1507 via the magnetic sheet 1510, ensuring stability throughout the reagent tray 1502 installation and testing process, ensuring precise addition of the dilution solution. The present embodiment provides a reagent tray 1502 for reagent testing, which has a simple structure and a high degree of automation, is applicable to a variety of biomedical and chemical testing scenarios, and can significantly improve the efficiency and safety of laboratory operations.

[0032] Example 2

[0033] In this embodiment, the reagent disc 1502 described in Example 1 is further optimized and improved. This embodiment provides a preferred reagent disc 1502 for reagent testing, comprising a disc body 1503, a disc cover 1505, a mounting base 1504, and a puncture structure 1508. Furthermore, the designs of the puncture structure 1508 and the liquid inlet 1506 are optimized to further improve the flow control and usage efficiency of the diluent.

[0034] Preferably, the puncturing structure 1508 includes a puncturing blade 1532 and abutment walls 1533 disposed on either side of the puncturing blade 1532. Specifically, the puncturing blade 1532 is a sharp component located on the inner wall of the liquid inlet 1506, used to puncture the sealing membrane 1511 at the top of the dilution cartridge 1509. During the puncturing process, the puncturing blade 1532 ensures that the diluent flows smoothly out and into the interior of the disk 1503. The abutment walls 1533 are disposed on either side of the puncturing blade 1532 and are connected to the puncturing blade 1532 and the inner wall of the liquid inlet 1506. The two sets of abutment walls 1533 enclose a diluent channel 1534. This diluent channel 1534 is the path for the diluent to flow out after puncture, used to guide the diluent from the dilution cartridge 1509 into the flow channel 1535 of the disk 1503. This design effectively controls the flow direction of the diluent, prevents disordered liquid flow, and ensures a stable and reliable dilution process. Diluent channel 1534 communicates with flow channel 1535 within disc body 1503, ensuring that the diluent rapidly enters disc body 1503 and mixes with the reagents after sealing membrane 1511 is punctured. Providing abutment wall 1533 to enclose diluent channel 1534 ensures that the diluent's flow direction is controlled upon entering disc body 1503, improving mixing uniformity and efficiency.

[0035] This embodiment also optimizes the structure of the liquid inlet 1506. An enclosing wall 1536 is preferably provided on the periphery of the liquid inlet 1506 to improve the accuracy and flow efficiency of the liquid diversion: the function of the enclosing wall 1536 is to surround the area around the liquid inlet 1506, thereby further controlling the flow range of the liquid. The top surface of the enclosing wall 1536 and the top of the abutting wall 1533 are in the same plane, so that the liquid can be distributed on a horizontal plane before entering the disc body 1503, which helps to reduce the turbulence of the liquid and ensure the uniform introduction of the diluent. A liquid inlet channel 1537 is provided on the enclosing wall 1536, and the liquid inlet channel 1537 is connected to the diluent channel 1534. After the liquid flows through the diluent channel 1534, it will be further introduced into the internal flow channel 1535 of the disc body 1503 through the liquid inlet channel 1537, thereby realizing precise control and quantitative introduction of the liquid. This design improvement significantly improves the flow control capability of the diluent, ensures the stability and uniformity of the diluent when entering the disc body 1503, and helps to obtain more reliable test results during the detection process.

[0036] Compared with Example 1, Example 2 further improves the overall performance of the system by improving the puncture structure 1508 and the liquid inlet 1506, and has the following advantages: by setting the abutting wall 1533 and the enclosing wall 1536, the diversion channel of the diluent is improved, ensuring that the flow of the liquid is controlled and avoiding unnecessary liquid splashing and contamination; the design of the diluent channel 1534 and the liquid inlet channel 1537 ensures that the liquid can be well controlled when entering the disc body 1503, thereby improving the uniformity of the mixing of the liquid and the reagent and ensuring the accuracy of the test results; the design of the abutting wall 1533 and the enclosing wall 1536 simplifies the liquid introduction path during the puncture process, and the precise introduction of the diluent can be achieved without complex mechanical operations, and the operation is simple and reliable; the optimized design of the puncture structure 1508 and the liquid inlet 1506 improves the stability and reliability of the entire reagent disc 1502 during use, especially when the reagent disc 1502 is frequently replaced, effectively reducing the risk of failure caused by uncontrolled liquid. In summary, this embodiment significantly improves the automation and usability of reagent disk 1502 by further optimizing the design of puncture structure 1508 and liquid inlet 1506, while ensuring automatic introduction of diluent. This improvement is applicable to various biomedical and chemical testing scenarios, and is particularly effective in applications requiring precise control of liquid flow.

[0037] Example 3

[0038] In this embodiment, the reagent tray 1502 described in Example 2 is further improved to optimize the internal structure of the accommodating chamber 1507, improve the fixing effect of the magnetic sheet 1510, and simplify the installation operation. Preferably, the accommodating chamber 1507 in this embodiment is provided with multiple sets of engaging platforms 1538, which are designed to fix the magnetic sheet 1510 to ensure the stability of the magnetic sheet 1510 during installation and operation.

[0039] The top of the engaging platform 1538 is provided with an opening and closing groove 1539. The outer periphery of the magnetic sheet 1510 is provided with a latch and protrusion 1540 that match the engaging platform 1538. When the magnetic sheet 1510 is rotated to engage the engaging platform 1538, the latch and protrusion 1540 can snap into the opening and closing groove 1539, thus achieving a stable connection. A mounting channel is formed between the multiple sets of engaging platforms 1538. The latch and protrusion 1540 of the magnetic sheet 1510 can pass through the mounting channel and rotate under external force to snap into the opening and closing groove 1539. This design makes the installation of the magnetic sheet 1510 more convenient, reducing the difficulty of operation and the possibility of errors during installation.

[0040] Preferably, one or more groups of limiting holes 1541 are provided around the outer periphery of the magnetic sheet 1510, surrounding the through-holes 1512. These limiting holes 1541 are designed to mate with the engaging platform 1538 by rotating under the action of an external force. The design of these limiting holes 1541 further ensures the stability of the magnetic sheet 1510, preventing it from loosening or shifting during installation. The magnetic sheet 1510 is preferably an iron sheet. This choice helps the magnetic force generated by the magnetic mounting base effectively attract the magnetic sheet 1510, improving the reliability and stability of the entire device. To achieve better positioning and fixation during installation, this embodiment forms an internal engaging wall mechanism 1542 between the inner walls of the multiple groups of engaging platforms 1538. The main function of the internal engaging wall mechanism 1542 is to provide a positioning function when the mounting base 1504 is installed in conjunction with the external magnetic mounting base, ensuring that the magnetic sheet 1510 can be accurately installed in the desired position. This design effectively improves positioning accuracy during installation and prevents failure of diluent introduction due to misalignment.

[0041] Preferably, a curved guide structure 1543 is provided at the bottom of the engaging platform 1538. The curved guide structure 1543 provides guidance during installation, allowing the magnetic sheet 1510 to smoothly pass through the installation channel and rotate into the opening and closing slot 1539. This design significantly reduces resistance during the installation of the magnetic sheet 1510, improving installation efficiency and making the entire device easier and faster to operate.

[0042] Compared with the previous embodiment, this embodiment significantly improves the stability and installation convenience of the reagent tray 1502 by improving the accommodating cavity 1507, the magnetic sheet 1510 and the snap-fit ​​structure. By providing multiple sets of snap-fit ​​platforms 1538, opening and closing grooves 1539, limiting holes 1541 and other structures, the magnetic sheet 1510 is more stably fixed in the accommodating cavity 1507, effectively preventing the risk of loosening and displacement, and ensuring that the reagent tray 1502 can maintain reliable performance during use; the introduction of the arc guide structure 1543 enables the magnetic sheet 1510 to be smoothly installed in place, reducing resistance and errors in operation, improving assembly efficiency, and reducing the technical requirements for operators; the design of the internal snap-fit ​​wall mechanism 1542 enables the magnetic sheet 1510 to be accurately positioned when cooperating with the mounting seat 1504 and the external magnetic mounting seat, ensuring the smooth introduction of the diluent and improving the reliability of the detection process; through these structural improvements, the overall design of the reagent tray 1502 is more compact, reducing the possibility of component loosening, and improving the durability and stability of the equipment in high-frequency operation.

[0043] In summary, this embodiment significantly improves the operational convenience and system stability of the reagent tray 1502 by further optimizing the snap-fit ​​and mounting structure of the magnetic sheet 1510. It is suitable for biomedical and chemical testing fields with high requirements for automation and precision, and is especially suitable for scenarios where repeated testing is required and the reagent tray 1502 needs to be frequently replaced.

[0044] Example 4

[0045] In this embodiment, the reagent disc 1502 mounting base 1504 described in Example 3 is further improved to increase the stability of the installation, especially when used in conjunction with an external magnetic mounting base, to prevent rotation and displacement, thereby ensuring the reliability of the entire system during operation.

[0046] Preferably, an anti-rotation structure 1544 is provided on the outer periphery of the bottom of the mounting base 1504 in this embodiment. Its main function is to prevent the mounting base 1504 from rotating when the mounting base 1504 is connected to the external magnetic mounting base, thereby ensuring stability during the installation process and subsequent use. The anti-rotation structure 1544 is a physical protective measure between the mounting base 1504 and the magnetic mounting base, and is used to prevent the mounting base 1504 from rotating or loosening due to external vibration or improper operation during the entire connection process. The anti-rotation structure 1544 can take various forms, such as anti-rotation protrusions or grooves, to ensure that the mounting base 1504 can remain fixed after being connected to the magnetic mounting base, thereby further improving the safety and reliability of the system during use.

[0047] In addition, preferably, a fixing hole 1545 is provided on the mounting base 1504 for fixing the mounting base 1504 when connected to the magnetic mounting base. Specifically, the fixing hole 1545 can accommodate a fixing structure on the external magnetic mounting base, such as a screw or a latch, to further ensure a secure connection between the mounting base 1504 and the magnetic mounting base, and to prevent loosening or detachment due to external forces. During the installation process, the operator can lock the fixing structure of the external magnetic mounting base with the mounting base 1504 through the fixing hole 1545, achieving multiple fixations and ensuring the precise positioning of each part during the assembly and use of the reagent tray 1502.

[0048] By improving the structure of the mounting base 1504, this embodiment further improves the overall stability and safety of the reagent disc 1502 system. The anti-rotation structure 1544 effectively prevents the mounting base 1504 from rotating when connected to the magnetic mounting base, especially in scenarios of high vibration or repeated assembly, which can ensure the stability of the installation and improve the reliability of the system operation; enhance the stability of the connection: by providing a fixing hole 1545 on the mounting base 1504, the external magnetic mounting base can be connected to the mounting base 1504 in a variety of ways, thereby further improving the stability of the installation and avoiding loosening and displacement caused by external forces; the combination of the fixing hole 1545 and the anti-rotation structure 1544 makes the installation operation simple and can effectively ensure the precise positioning of each component, thereby improving the overall operating efficiency and accuracy of the detection device; the setting of the anti-rotation structure 1544 and the fixing hole 1545 enables the reagent disc 1502 of this embodiment to adapt to more complex application scenarios, especially in detection equipment that requires frequent installation and disassembly, ensuring its stable operation and reliability of the results. This embodiment further enhances the stability of the reagent tray 1502 during installation by providing an anti-rotation structure 1544 and fixing holes 1545 on the mounting base 1504, ensuring that the entire testing process can be carried out smoothly. This design is particularly suitable for biomedical and chemical testing fields where the operating environment is relatively complex and long-term stable operation of the equipment is required, helping to improve the accuracy of the test and the durability of the system.

[0049] In short, the above are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A reagent disc for reagent detection, characterized in that: The jar is provided with a piercing structure on the inner wall of the jar, and a dilution box and a magnetic sheet are provided in the piercing structure, and the magnetic sheet is engaged with the inner wall of the piercing structure and restricts the dilution box between the magnetic sheet and the piercing structure; a sealing film is provided on the top of the dilution box, and the sealing film is located at the bottom end of the piercing structure, and the magnetic sheet is provided with a perforation, and the perforation is used for, when the mounting seat is connected to the magnetic mounting seat of the external tester, the convex structure on the top of the magnetic mounting seat passes through the perforation to press the dilution box to move upward in the piercing cavity under the attraction of the magnetic sheet, and the sealing film is cut under the action of the piercing structure, and the dilution liquid in the dilution box enters the guide plate body through the piercing structure.

2. A reagent disc for reagent detection according to claim 1, characterized in that: The puncture structure includes a puncture blade and abutment walls arranged on both sides of the puncture blade. The puncture blade and the two groups of abutment walls are connected to the inner wall of the liquid inlet, and the two groups of abutment walls enclose a diluent channel, which is connected to the flow channel of the disc body.

3. A reagent disc for reagent detection according to claim 2, characterized in that: An enclosing wall is provided on the periphery of the liquid inlet, the top surface of the enclosing wall and the top of the supporting wall are in the same plane, and a liquid inlet channel is opened in the enclosing wall, and the liquid inlet channel is communicated with the diluent channel.

4. A reagent disc for reagent detection according to claim 1, characterized in that: Multiple groups of locking platforms are provided inside the accommodating cavity, and an opening and closing groove is provided on the top of the locking platform. The outer periphery of the magnetic sheet is provided with a card and a protrusion matching the locking platform, and the card and protrusion are adapted to the opening and closing groove; an installation channel is formed between the locking platforms so that the card and protrusion can be rotated and locked into the opening and closing groove after passing through the installation channel.

5. A reagent disc for reagent detection according to claim 4, characterized in that: The magnetic sheet is provided with one or more groups of limiting holes around the periphery of the through hole, and the limiting holes are used to rotate under the action of external force to be inserted into the opening and closing slots.

6. A reagent disc for reagent detection according to claim 4, characterized in that: The magnetic sheet is an iron sheet.

7. A reagent disc for reagent detection according to claim 4, characterized in that: The inner walls of the multiple groups of the engaging platforms are enclosed to form an inner engaging wall mechanism, and the inner engaging wall mechanism is used for positioning the mounting base and the magnetic mounting base when they are mounted.

8. A reagent disc for reagent detection according to claim 7, characterized in that: The bottom of the engaging platform is provided with an arc-surface guide structure.

9. A reagent disc for reagent detection according to claim 1, characterized in that: An anti-rotation structure is provided on the outer periphery of the bottom of the mounting seat; the anti-rotation structure is used to prevent the mounting seat from rotating when the mounting seat is connected to the magnetic mounting seat.

10. The reagent disc for reagent detection according to claim 1, characterized in that: The mounting base is provided with a fixing hole for fixing the mounting base when the mounting base is connected to the magnetic mounting base.

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