Magnetic mounting assembly for reagent disc detection

Abstract

The utility model relates to the technical field of optical detection, and particularly discloses a magnetic mounting assembly for reagent disc detection, which comprises a magnetic mounting seat and a reagent disc, the reagent disc comprises a disc body and a mounting seat connected with the disc body; a puncture structure is arranged on the inner wall of the liquid inlet; a sealing film is arranged at the top of the dilution box; a through hole is formed in the magnetic sheet; the magnetic mounting seat comprises a mounting body and a limiting mechanism, and an annular mounting cavity is formed between the positioning structures; a magnet mounting cavity is formed in the guide structure, a magnet is arranged in the magnet mounting cavity, and a convex structure is arranged at the top of the magnet; when the mounting base is connected with the magnetic mounting base, the magnetic sheet is attracted by the magnet, the protruding structure on the top of the magnetic mounting base penetrates through the through hole to abut against the dilution box to move upwards in the containing cavity, the sealing film is ripped open under the action of the puncture structure, and 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 magnetic mounting assembly for reagent disc detection. Background Art

[0002] With the rapid development of detection technologies in the biomedical and chemical fields, automated testing equipment is increasingly being used in fields such as medical diagnosis and environmental monitoring. Microfluidic biochemical reagent trays, as key tools for efficient and rapid liquid sample distribution and processing, have been widely used in clinical testing, environmental monitoring, food safety, and other fields. The advantage of microfluidic technology lies in its ability to precisely control the flow of liquids, enabling the efficient execution of complex chemical or biochemical reactions, thereby improving the efficiency and accuracy of testing.

[0003] In the prior art, the application of reagent trays usually includes multiple steps, such as storage, transfer, dilution, mixing and other operations. In particular, in the actual detection process, the dilution and mixing of reagents play a vital role in ensuring the accuracy of the test results. However, the existing reagent trays still have some obvious shortcomings in these operations. First, the existing reagent trays mostly use manual or semi-automatic methods to dilute and mix reagents, which are more complicated in operation and are easily affected by human errors, thereby reducing the efficiency and accuracy of the test. Secondly, the existing reagent trays usually require additional equipment or manual intervention to complete the injection of diluent during operation, which not only increases the difficulty of operation, but also may lead to an increased risk of sample contamination. In addition, in the prior art, the injection of diluent and the processing of samples often require multiple steps to complete, resulting in a long operation time and cannot meet the needs of rapid detection.

[0004] Existing technical solutions still lack a structural design that can automatically and efficiently complete the injection of diluent while quickly installing the reagent tray. Especially in the application scenario of microfluidic reagent trays, how to achieve the precise positioning of the dilution box and its coordination with other structures remains an urgent problem to be solved. Therefore, there is an urgent need for a new solution that can quickly complete the installation during the reagent tray detection process and automatically inject the diluent into the reagent tray, so as to improve the degree of automation of the detection, reduce the need for human intervention, and thus improve the accuracy and efficiency of the detection. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a magnetic mounting assembly for reagent disc detection.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A magnetic mounting assembly for reagent disc detection, comprising a magnetic mounting base and a reagent disc;

[0008] The reagent tray comprises a tray body and a mounting base connected to the tray body, with a tray cover covering the top of the tray body; the tray body is provided with a liquid inlet, and the mounting base is provided with a receiving cavity, which is connected to the liquid inlet; the inner wall of the liquid inlet is provided with a puncture structure, and a dilution box and a magnetic sheet are provided in the receiving cavity, which is engaged with the inner wall of the receiving cavity and constrains the dilution box between the magnetic sheet and the puncture structure; a sealing film is provided on the top of the dilution box, which is located at the bottom end of the puncture structure, and the magnetic sheet is provided with a perforation;

[0009] The magnetic mounting base includes a mounting body and a limiting mechanism provided on the mounting body. The limiting mechanism includes a positioning structure and a guide structure. The positioning structure and the guide structure are respectively connected to the top of the mounting body. The positioning structure is provided on the periphery of the guide structure, and an annular mounting cavity is formed between the positioning structures. A magnet mounting cavity is provided inside the guide structure. A magnet is provided in the magnet mounting cavity. A protrusion structure is provided on the top of the magnet.

[0010] The perforation is used when the mounting base is connected to the magnetic mounting base. Under the attraction of the magnet, the magnetic sheet passes through the perforation to support the dilution box and move upward in the accommodating cavity. Under the action of the puncture structure, the sealing film is cut open, and the dilution liquid in the dilution box enters the guide disc body through the puncture structure.

[0011] Preferably, an adjusting gear ring is provided on the outer periphery of the mounting body.

[0012] Preferably, it also includes a fixing bolt, a mounting hole is provided at the bottom of the mounting body, a connecting hole is provided on the magnet that matches the mounting hole, a threaded hole is provided on the protruding structure, and one end of the threaded rod of the fixing bolt passes through the mounting hole, the connecting hole and the threaded hole in sequence to fix the mounting body, the magnet and the protruding structure.

[0013] Preferably, the mounting body is provided with one or more external connection holes.

[0014] Preferably, a plurality of groups of straight surface structures are arranged around the inner wall of the positioning structure, and the straight surface structures are connected end to end and their projections are equilateral polygons.

[0015] Preferably, a guide surface is provided at the top end of the straight-facing structure.

[0016] Preferably, an air pressure balancing groove is provided at the connection of the straight surface structure.

[0017] Preferably, the height of the guide structure is greater than the height of the positioning structure.

[0018] Preferably, the top peripheral edge of the guide structure is provided with an arc-shaped guide surface.

[0019] Preferably, the positioning structure is provided with one or more groups of positioning holes, which are communicated with the annular mounting cavity.

[0020] 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.

[0021] 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 on the enclosing wall, which is connected to the diluent channel.

[0022] 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.

[0023] 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 groove.

[0024] Preferably, the magnetic sheet is an iron sheet.

[0025] 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.

[0026] Preferably, a curved guide structure is provided at the bottom of the engaging platform.

[0027] 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.

[0028] Preferably, the mounting base is provided with a fixing hole for fixing the mounting base when connected to the magnetic mounting base.

[0029] The beneficial effects of the present invention are as follows: it greatly improves the installation and operation efficiency of the reagent tray, and at the same time improves the accuracy and reliability of reagent detection. First, the component realizes the rapid positioning and stable installation of the reagent tray through the automatic cooperation between the magnetic mounting base and the reagent tray, simplifies the operation steps, reduces the need for manual intervention, and thus reduces the possibility of human error. Secondly, the design cleverly utilizes the attraction of the magnetic sheet and the magnetic mounting base, so that the dilution box can be accurately moved under the guidance of the magnet, ensuring that the diluent is automatically injected into the interior of the reagent tray during operation, effectively avoiding the problems of uneven injection of the dilution or sample contamination in traditional operations. In addition, the combination of the puncture structure of the component and the sealing film ensures that the diluent can enter the reagent tray safely and accurately, thereby improving the degree of automation of the entire detection process. Overall, the magnetic mounting component greatly simplifies the operation process of the microfluidic biochemical reagent tray by integrating the design of the dilution box and the magnetic sheet, reduces the operation steps and time, and improves the detection efficiency and the accuracy of the results. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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:

[0031] Figure 1 is an exploded view of a magnetic mounting assembly provided by an embodiment of the present utility model;

[0032] Figure 2 It is an enlarged view of a part A of the exploded view of the magnetic mounting assembly provided by an embodiment of the present utility model;

[0033] Figure 3 This is an exploded view of a magnetic mounting base of a magnetic mounting assembly provided by an embodiment of the present utility model;

[0034] Figure 4 is an exploded view of a magnetic mounting assembly provided by an embodiment of the present utility model;

[0035] Figure 5 is a top view of a reagent tray of a magnetic mounting assembly for reagent tray testing;

[0036] Figure 6 This is an exploded view of a reagent tray provided in an embodiment of the present utility model;

[0037] Figure 7 It is an exploded view of the reagent tray provided in the embodiment of the present utility model.

[0038] Icons: 1500 - magnetic mounting assembly; 1501 - magnetic mounting base; 1502 - reagent tray; 1503 - tray body; 1504 - mounting base; 1505 - tray cover; 1506 - liquid inlet; 1507 - receiving chamber; 1508 - puncture structure; 1509 - dilution box; 1510 - magnetic sheet; 1511 - sealing film; 1512 - perforation; 1513 - mounting body; 1514 - limiting mechanism; 1515 - positioning structure; 1516 - guiding structure; 1517 - annular mounting cavity; 1518 - magnet mounting cavity; 1520 - magnet; 1521 - raised structure; 1522 - adjustment gear ring; 1523 -mounting hole; 1524-connecting hole; 1525-threaded hole; 1526-external hole; 1527-straight surface structure; 1528-guide surface; 1529-air pressure balance groove; 1530-arc-shaped guide surface; 1531-positioning hole; 1532-piercing blade; 1533-supporting wall; 1534-dilution channel; 1535-flow channel; 1536-enclosing wall; 1537-liquid inlet channel; 1538-clamping platform; 1539-opening and closing groove; 1540-clamping protrusion; 1541-limiting hole; 1542-internal clamping wall mechanism; 1543-arc-surface guide structure; 1544-anti-rotation structure; 1545-fixing hole. DETAILED DESCRIPTION

[0039] 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.

[0040] 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 require further definition or explanation in subsequent drawings.

[0041] Example 1:

[0042] See also Figures 1 to 7 , a magnetic mounting assembly 1500 for detecting a reagent disc 1502 proposed in an embodiment of the present invention, comprising a magnetic mounting base 1504 and a reagent disc 1502;

[0043] The reagent disk 1502 includes a disk body 1503 and a mounting base 1504 connected to the disk body 1503, and a disk cover 1505 covers the top of the disk body 1503; the disk body 1503 is provided with a liquid inlet 1506, and the mounting base 1504 is provided with a receiving cavity 1507, which is connected to the liquid inlet 1506; the inner wall of the liquid inlet 1506 is provided with a puncture structure 1508, and the receiving cavity 1507 is provided with a dilution box 1509 and a magnetic sheet 1510. The magnetic sheet 1510 is engaged with the inner wall of the accommodating chamber 1507 and limits the dilution box 1509 between the magnetic sheet 1510 and the puncture structure 1508; a sealing film 1511 is provided on the top of the dilution box 1509, and the sealing film 1511 is located at the bottom end of the puncture structure 1508. The magnetic sheet 1510 is provided with a perforation 1512; the magnetic mounting base 1504 includes a mounting body 1513 and a limiting mechanism 1514 provided on the mounting body 1513, and the limiting mechanism 1514 includes a positioning structure 1515 and the guide structure 1516, the positioning structure 1515 and the guide structure 1516 are respectively connected to the top of the installation body 1513, the positioning structure 1515 is arranged on the periphery of the guide structure 1516, and an annular installation cavity 1517 is formed between the positioning structure 1515 and the positioning structure 1515; the guide structure 1516 is provided with a magnet installation cavity 1518 inside, and a magnet 1520 is provided in the magnet installation cavity 1518, and a protruding structure is provided on the top of the magnet 1520. The through-hole 1512 is used to allow the magnetic sheet 1510 to be attracted by the magnet 1520 when the mounting base 1504 is connected to the magnetic mounting base 1504. The raised structure 1521 on the top of the magnetic mounting base 1504 passes through the through-hole 1512 to press the dilution cartridge 1509 upward within the accommodating chamber 1507. The sealing film 1511 is cut open by the puncture structure 1508, and the diluent in the dilution cartridge 1509 enters the guide tray body 1503 through the puncture structure 1508. The tray cover 1505 may be a layer of film.

[0044] Specifically, the magnetic mounting assembly 1500 includes a magnetic mounting base 1504 and a reagent tray 1502. The reagent tray 1502 is primarily composed of a tray body 1503 and a mounting base 1504. The mounting base 1504 is connected to the tray body 1503, and a tray cover 1505 covers the top of the tray body 1503 to prevent reagent leakage or contamination. In this embodiment, a liquid inlet 1506 is provided on the tray body 1503 for guiding diluent into the interior of the tray body 1503. A receiving chamber 1507 is provided within the mounting base 1504, which is connected to the liquid inlet 1506 via a connecting passage. A dilution cartridge 1509 and a magnetic sheet 1510 are disposed within the accommodating chamber 1507. The magnetic sheet 1510 is snapped onto the inner wall of the accommodating chamber 1507 and securely holds the dilution cartridge 1509 between the magnetic sheet 1510 and the puncture structure 1508 of the liquid inlet 1506. Thus, the dilution cartridge 1509 remains stable within the confines of the magnetic sheet 1510, preventing accidental movement during transportation or operation.

[0045] Furthermore, the top of the dilution cartridge 1509 is covered with a sealing film 1511, which is used to seal the diluent in the cartridge 1509 to prevent contamination before the dilution is injected into the disc 1503. The sealing film 1511 is positioned directly below the puncture structure 1508 of the liquid inlet 1506. When the dilution cartridge 1509 is subjected to pressure from the puncture structure 1508, the sealing film 1511 is cut open, allowing the dilution to flow into the disc 1503.

[0046] The magnetic mounting base 1504 includes a mounting body 1513, which is provided with a limiting mechanism 1514 for limiting the installation position of the reagent disc 1502. The limiting mechanism 1514 is composed of a positioning structure 1515 and a guide structure 1516, each of which is fixed to the top of the mounting body 1513. The positioning structure 1515 surrounds the outer periphery of the guide structure 1516, forming an annular mounting cavity 1517, which facilitates the correct installation of the reagent disc 1502 on the magnetic mounting base 1504.

[0047] Furthermore, a magnet mounting cavity 1518 is provided within the guide structure 1516, within which a magnet 1520 is secured. Magnet 1520 is used to magnetically attract the magnetic sheet 1510, thereby causing the dilution cartridge 1509 to move upward when the reagent disk 1502 is connected to the magnetic mounting base 1504. A protrusion 1521 is provided on the top of the magnet 1520. This protrusion 1521 can pass through the perforation 1512 in the magnetic sheet 1510 and abut against the dilution cartridge 1509. Thus, under the action of the magnetic force, the magnetic sheet 1510 and the dilution cartridge 1509 are pushed toward the puncture structure 1508, causing the sealing film 1511 to be cut open, allowing the diluent to flow into the disk body 1503.

[0048] In this embodiment, perforations 1512 on magnetic sheet 1510 play a key role. When magnetic mounting base 1504 and reagent tray 1502 are connected, magnetic sheet 1510, attracted by magnet 1520, causes protrusions 1521 to push dilution cartridge 1509 upward through perforations 1512. During this process, the movement of dilution cartridge 1509 causes sealing film 1511 to be pierced by puncture structure 1508, allowing the diluent to pass smoothly through puncture structure 1508 and enter tray body 1503, completing automatic injection of the diluent.

[0049] This practical magnetic mounting assembly 1500, through the cooperation of magnetic sheet 1510 and magnetic mounting base 1504, enables rapid installation of reagent tray 1502 and automatic injection of diluent, simplifying the testing operation and improving the degree of automation of the test. Furthermore, the device ensures precise control of the diluent during operation, avoiding the impact of human intervention on the results, and effectively improving the efficiency and accuracy of the test.

[0050] Example 2:

[0051] In this embodiment, based on embodiment 1, the design of the magnetic mounting assembly 1500 is further optimized and improved to enhance the convenience and reliability of its installation and use.

[0052] Preferably, an adjustment tooth ring 1522 is provided on the periphery of the mounting body 1513. The design of the adjustment tooth ring 1522 facilitates the user to more accurately adjust and position the mounting body 1513 during the installation process, thereby improving the stability and adaptability of the assembly.

[0053] Preferably, magnetic mounting assembly 1500 further includes a fixing bolt. The bottom of mounting body 1513 is provided with a mounting hole 1523. Magnet 1520 is provided with a connecting hole 1524 that mates with mounting hole 1523. Furthermore, protruding structure 1521 is provided with a threaded hole 1525. One end of the threaded rod of the fixing bolt passes through mounting hole 1523, connecting hole 1524, and threaded hole 1525, respectively, to secure mounting body 1513, magnet 1520, and protruding structure 1521 together. This design, through the mechanical connection of bolts, ensures a tight fit between the various components, further enhancing the overall stability of the mounting assembly and preventing loosening or displacement.

[0054] Preferably, the mounting body 1513 is provided with one or more external holes 1526 for connecting to external devices or facilitating the expansion and connection of subsequent components. The design of the external holes 1526 makes the mounting body 1513 more adaptable and flexible in different application scenarios.

[0055] Preferably, the inner wall of the positioning structure 1515 is surrounded by multiple sets of straight surface structures 1527, which are connected end to end and their projections form an equilateral polygon. The design of the straight surface structures 1527 helps to enhance the engagement stability of the mounting body 1513 with other structures during use, providing higher mechanical strength.

[0056] Preferably, a guide surface 1528 is provided at the top of the straight surface structure 1527. The guide surface 1528 provides a good guiding effect for the installation component during assembly and disassembly, ensuring a smooth and efficient installation process.

[0057] Preferably, an air pressure balancing groove 1529 is provided at the connection of the straight surface structure 1527. This design is used to effectively regulate the air pressure inside the component during installation, avoid operational obstacles caused by air pressure imbalance, and reduce the resistance of the internal components during operation.

[0058] Preferably, the height of the guide structure 1516 is greater than the height of the positioning structure 1515. This design enables the guide structure 1516 to provide a longer guide stroke, thereby making the connection between the reagent disk 1502 and the magnetic mounting base 1504 more accurate and stable.

[0059] Preferably, the top peripheral edge of the guide structure 1516 is provided with an arcuate guide surface 1530. The design of the arcuate guide surface 1530 further reduces the friction between the components, so that the mounting assembly can move more smoothly during the connection process of the reagent tray 1502 and effectively avoid the occurrence of the stagnation phenomenon.

[0060] Preferably, the positioning structure 1515 is provided with one or more groups of positioning holes 1531, and these positioning holes 1531 are connected to the annular mounting cavity 1517. This design facilitates accurate positioning during the installation of the reagent disc 1502, ensuring a tight fit between the reagent disc 1502 and the mounting seat 1504.

[0061] Through the above-mentioned preferred design, the present embodiment further improves the stability, adaptability and ease of operation of the magnetic mounting assembly 1500 during actual use. In particular, by introducing designs such as the adjusting tooth ring 1522, fixing bolts and multiple groups of directly facing structures 1527, the installation process of the reagent tray 1502 and the mounting base 1504 is greatly optimized, ensuring the reliability and accuracy of the operation. In the present embodiment, by adjusting a series of preferred designs such as the tooth ring 1522, fixing bolts, external holes 1526, directly facing structures 1527, and guide surfaces 1528, the ease of operation, assembly stability and positioning accuracy of the magnetic mounting assembly 1500 in the detection of the reagent tray 1502 are further improved. These improvements not only reduce the demand for human intervention, but also significantly improve the degree of automation and service life of the device, meeting the requirements of fast, efficient and stable detection.

[0062] Example 3:

[0063] In this embodiment, based on Example 1, the magnetic mounting assembly 1500 further optimizes the design of the puncture structure 1508 and the connection structure, thereby improving the accuracy of diluent injection, assembly stability and ease of use.

[0064] Preferably, the puncture structure 1508 includes a puncture blade 1532 and abutment walls 1533 arranged on both sides of the puncture blade 1532. The puncture blade 1532 and the two sets of abutment walls 1533 are connected to the inner wall of the liquid inlet 1506, and the two sets of abutment walls 1533 enclose a diluent channel 1534, which is connected to the flow channel 1535 of the disc body 1503.

[0065] This design ensures that once the sealing membrane 1511 of the dilution cartridge 1509 is punctured by the puncturing blade 1532, the diluent can flow smoothly into the flow channel 1535 within the tray body 1503 through the diluent channel 1534 formed by the abutting wall 1533. The design of the abutting wall 1533 provides support and guidance, preventing liquid leakage and ensuring a stable flow path for the diluent, thereby improving the reliability of the injection process.

[0066] Preferably, an enclosing wall 1536 is provided on the periphery of the liquid inlet 1506 , the top surface of the enclosing wall 1536 and the top of the supporting wall 1533 are in the same plane, and the enclosing wall 1536 is provided with a liquid inlet channel 1537 , which is connected to the diluent channel 1534 .

[0067] The design of the enclosing wall 1536 increases the strength of the liquid inlet 1506, preventing deformation or leakage during operation. At the same time, the connection between the liquid inlet channel 1537 and the diluent channel 1534 ensures that the diluent can smoothly enter the flow channel 1535 in the disk body 1503, avoiding blockage.

[0068] Preferably, multiple groups of locking platforms 1538 are provided inside the accommodating cavity 1507, and an opening and closing groove 1539 is provided on the top of the locking platform 1538. The outer periphery of the magnetic sheet 1510 is provided with a card and a protrusion 1540 matching the locking platform 1538, and the card and protrusion 1540 are adapted to the opening and closing groove 1539; an installation channel is formed between the locking platforms 1538 to facilitate the card and protrusion 1540 to rotate and lock into the opening and closing groove 1539 after passing through the installation channel.

[0069] The design of the engaging platform 1538 allows the magnetic sheet 1510 to be engaged with the opening and closing groove 1539 in the accommodating cavity 1507 by rotation, ensuring the stable installation of the dilution box 1509. This design provides convenient installation operation and avoids the loosening or misalignment problems that may occur with traditional plug-in methods.

[0070] Preferably, magnetic sheet 1510 is provided with one or more sets of retaining holes 1541 around the periphery of through-hole 1512. Retaining holes 1541 are configured to rotate under the action of an external force to snap into opening and closing slot 1539. Retaining holes 1541 provide an additional positioning function, ensuring that magnetic sheet 1510 can be rotated and snapped into a predetermined position during operation, further improving the accuracy and reliability of assembly.

[0071] Preferably, the magnetic sheet 1510 is an iron sheet. The iron sheet material has good magnetic properties and can generate a strong adsorption force with the magnet 1520, ensuring the stable installation of the dilution box 1509 in the magnetic mounting assembly 1500 and improving the overall performance of the device.

[0072] Preferably, the inner walls of the multiple sets of engaging platforms 1538 enclose an inner engaging wall mechanism 1542, which is used to position the mounting base 1504 when it is assembled with the magnetic mounting base 1504. This design provides an additional positioning structure 1515 for assembly, ensuring that the components can be accurately aligned when the mounting base 1504 is combined with the magnetic mounting base 1504, thereby reducing errors.

[0073] Preferably, a curved guide structure 1543 is provided at the bottom of the engaging platform 1538 .

[0074] The arc-surface guide structure 1543 provides a good guiding function, helping the magnetic sheet 1510 to smoothly enter the engaging position during the installation process, reducing friction resistance and jamming during operation, and making the assembly process smoother.

[0075] Preferably, an anti-rotation structure 1544 is provided on the outer periphery of the bottom of the mounting base 1504. The anti-rotation structure 1544 is used to prevent the mounting base 1504 from rotating when the mounting base 1504 is connected to the magnetic mounting base 1504. The anti-rotation structure 1544 effectively prevents the mounting base 1504 from rotating and deviating when connected to the magnetic mounting base 1504, ensuring that the device remains stable during use and avoiding misalignment or loosening due to rotation.

[0076] Preferably, the mounting base 1504 is provided with a fixing hole 1545 for fixing the mounting base 1504 when connected to the magnetic mounting base 1504. Through the fixing hole 1545, the mounting base 1504 can be firmly connected to the magnetic mounting base 1504, further ensuring the stability of the installation and preventing displacement and loosening during operation.

[0077] This embodiment further enhances the stability, precision, and ease of assembly of magnetic mounting assembly 1500 during actual operation by optimizing the design of puncture structure 1508, enclosure wall 1536, engaging platform 1538, and anti-rotation structure 1544. In particular, the design of engaging platform 1538 and retaining hole 1541 allows the magnetic sheet 1510 and dilution cartridge 1509 to be accurately and securely mounted within accommodating cavity 1507, while the design of anti-rotation structure 1544 and fixing hole 1545 ensures the safety and reliability of the entire assembly during use.

[0078] 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 magnetic mounting assembly for reagent disc detection, characterized in that: Includes magnetic mount and reagent tray; The reagent tray comprises a tray body and a mounting base connected to the tray body, and a tray cover covers the top of the tray body; the tray body is provided with a liquid inlet, and the mounting base is provided with a receiving cavity, and the receiving cavity is communicated with the liquid inlet; the inner wall of the liquid inlet is provided with a puncture structure, and a dilution box and a magnetic sheet are provided in the receiving cavity, and the magnetic sheet is engaged with the inner wall of the receiving cavity and confines the dilution box between the magnetic sheet and the puncture 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 puncture structure, and the magnetic sheet is provided with a perforation; The magnetic mounting seat includes a mounting body and a limiting mechanism arranged on the mounting body, the limiting mechanism includes a positioning structure and a guide structure, the positioning structure and the guide structure are respectively connected to the top of the mounting body, the positioning structure is arranged on the periphery of the guide structure, and an annular mounting cavity is formed between the positioning structure and the positioning structure; a magnet mounting cavity is provided inside the guide structure, a magnet is provided in the magnet mounting cavity, and a protrusion structure is provided on the top of the magnet; The through-hole is used for enabling the magnetic sheet to be attracted by the magnet when the mounting base is connected to the magnetic mounting base, so that the raised structure on the top of the magnetic mounting base passes through the through-hole to press the dilution box to move upward in the accommodating cavity, and the sealing film is cut open under the action of the puncture structure, so that the dilution liquid in the dilution box enters the guide plate body through the puncture structure.

2. A magnetic mounting assembly for reagent disc detection according to claim 1, characterized in that: An adjusting gear ring is provided on the outer periphery of the mounting body.

3. A magnetic mounting assembly for reagent disc detection according to claim 1, characterized in that: It also includes a fixing bolt, a mounting hole is provided at the bottom of the mounting body, a connecting hole is provided on the magnet that is adapted to the mounting hole, and a threaded hole is provided on the protruding structure. One end of the threaded rod of the fixing bolt passes through the mounting hole, the connecting hole and the threaded hole in sequence to fix the mounting body, the magnet and the protruding structure.

4. A magnetic mounting assembly for reagent disc detection according to claim 1, characterized in that: A plurality of groups of straight surface structures are arranged around the inner wall of the positioning structure. The straight surface structures are connected end to end and their projections are equilateral polygons.

5. A magnetic mounting assembly for reagent disc detection according to claim 4, characterized in that: An air pressure balancing groove is provided at the connection of the straight surface structure.

6. The magnetic mounting assembly for reagent disc detection according to claim 1, characterized in that: The height of the guide structure is greater than the height of the positioning structure.

7. The magnetic mounting assembly for reagent disc 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.

8. A magnetic mounting assembly for reagent disc detection according to claim 7, 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 on the enclosing wall, and the liquid inlet channel is communicated with the diluent channel.

9. The magnetic mounting assembly for reagent disc 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.

10. The magnetic mounting assembly for reagent disc detection according to claim 9, 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.

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