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 base, the top of the disc body is covered with a covering film and provided with a liquid inlet, and a containing cavity is formed in the mounting base and communicated with the liquid inlet; a dilution box and a magnetic sheet are installed in the containing cavity, and the magnetic sheet is provided with a through hole and clamped to the inner wall of the containing cavity to limit the position of the dilution box; the magnetic mounting base comprises a mounting body and a limiting mechanism, a magnet and a protruding structure are arranged in the magnetic mounting base, the protruding structure abuts against the dilution box through the penetrating hole, the dilution box is promoted to move upwards to rip the sealing film, and diluent enters the disc body through the puncturing structure. The assembly simplifies installation, improves stability and operation precision, and avoids pollution.

Description

Technical Field

[0001] This utility model relates to the field of optical detection technology, and in particular to a magnetic mounting assembly for reagent tray detection. Background Technology

[0002] With the rapid development of detection technologies in the biomedical and chemical fields, automated detection equipment is increasingly widely used in medical diagnosis, environmental monitoring, and other areas. Among these, microfluidic biochemical reagent trays, as key tools for efficient and rapid liquid sample dispensing and processing, have been widely applied in clinical testing, environmental monitoring, food safety, and many 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 detection.

[0003] Reagent tray detection systems play a crucial role in biochemical detection and analysis. To improve reagent detection accuracy, reagent trays typically require multiple operations, including reagent addition, dilution, and mixing. In existing technologies, reagent tray operations are mostly achieved through mechanical components, which often suffer from complex installation, low accuracy, and poor stability. Furthermore, facilitating the installation and removal of the dilution box during reagent tray detection, while ensuring effective control of the reagents within the dilution box, is one of the major challenges facing current technologies. Most current reagent tray mounting components cannot achieve accurate and safe positioning and operation of the dilution box during detection, exhibiting defects such as inadequate sealing and susceptibility to contamination. Simultaneously, the connection between existing reagent trays and mounting components largely relies on simple snap-fit ​​or bolt structures, which are prone to loosening and leakage during use, affecting the accuracy of the detection results.

[0004] To address these issues, the industry has proposed several improvements, such as introducing magnetic structures into the components to aid installation. However, existing magnetic mounting structures typically cannot guarantee the stability and sealing of the dilution cartridge under external forces, and are difficult to automate and optimize in practical operation. Therefore, providing a magnetic mounting component that is structurally sound, easy to operate, and ensures the accuracy and stability of reagent tray detection has become a pressing issue for those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a magnetic mounting assembly for reagent tray detection.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A magnetic mounting assembly for reagent tray detection includes a magnetic mounting base and a reagent tray;

[0008] The reagent tray includes a tray body and a mounting base connected to the tray body, with a film covering the top of the tray body. The tray body has an inlet, and the mounting base has a receiving cavity that communicates with the inlet. The inner wall of the inlet has a puncture structure, and the receiving cavity contains a dilution box and a magnetic sheet. The magnetic sheet engages with the inner wall of the receiving cavity and confines the dilution box between the magnetic sheet and the puncture structure. The top of the dilution box has a sealing film located at the bottom of the puncture structure, and the magnetic sheet has a perforation.

[0009] The magnetic mounting base includes a mounting body and a limiting mechanism disposed on the mounting body. The limiting mechanism includes a positioning structure and a mounting structure. The positioning structure and the mounting structure are respectively connected to the top end of the mounting body. The positioning structure is disposed on the outer periphery of the mounting structure. The mounting structure has a magnet mounting cavity, in which a magnet is disposed. The top of the magnet has a protruding structure.

[0010] The perforation is used when the mounting base is connected to the magnetic mounting base. When the magnetic sheet is attracted by the magnet, the protrusion on the top of the magnetic mounting base passes through the perforation and holds the dilution box. As the dilution box moves upward in the accommodating cavity, the sealing film is cut open by the piercing structure, and the diluent in the dilution box enters the disc body through the piercing structure.

[0011] Preferably, an adjusting toothed 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 adapted to the mounting hole is provided on the magnet, a threaded hole is provided on the protrusion 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 and is fixed to the mounting body, the magnet and the protrusion structure.

[0013] Preferably, the inner wall of the positioning structure is provided with multiple sets of arc-shaped protrusions at intervals, and adjacent arc-shaped protrusions form a closing groove.

[0014] Preferably, the outer periphery of the mounting base is provided with a limiting protrusion that matches the closing groove.

[0015] Preferably, the puncture structure includes a puncture blade and supporting walls disposed on both sides of the puncture blade. The puncture blade and the two sets of supporting walls are connected to the inner wall of the liquid inlet, and the two sets of supporting walls enclose a diluent channel. The disc body has a flow channel. The diluent channel is connected to the flow channel of the disc body.

[0016] Preferably, an enclosing wall is provided around the liquid inlet, the top surface of the enclosing wall is on the same plane as the top of the supporting wall, and the enclosing wall has a liquid inlet channel that is connected to the diluent channel.

[0017] Preferably, the cavity is provided with multiple sets of locking platforms, the top of the locking platform is provided with an opening and closing groove, and the outer periphery of the magnetic sheet is provided with locking protrusions that match the locking platforms. The locking protrusions are adapted to the opening and closing grooves. An installation channel is formed between the locking platforms so that the locking protrusions can be rotated and locked into the opening and closing grooves after passing through the installation channel.

[0018] Preferably, the mounting body has one or more external holes.

[0019] The beneficial effects of this invention are as follows: By using a magnetic mounting base in conjunction with the reagent tray, the attraction between the magnetic sheet and the magnet makes the installation and disassembly of the dilution box more convenient, eliminating the need for complex manual operations. This simplifies the installation and disassembly process of the reagent tray, improving operational convenience and efficiency. The snap-fit ​​structure between the magnetic sheet and the inner wall of the accommodating cavity, along with the attraction of the magnet and the design of the protruding structure, effectively ensures the stable positioning of the dilution box within the reagent tray, preventing leakage of the diluent and decreased detection accuracy due to loosening during use, thus improving overall detection stability. A sealing film is provided on the top of the dilution box, positioned at the bottom of the puncture structure. When the dilution box moves within the accommodating cavity, the puncture structure effectively cuts open the sealing film, ensuring that the diluent only enters the tray when in use. This prevents the dilution box from being exposed before use, reducing the risk of contamination and improving sealing performance and reagent safety during the detection process. With the perforated design, when the magnetic mounting base is connected to the mounting base, the attraction of the magnet aligns the perforation on the magnetic sheet with the protruding structure, allowing the dilution box to automatically inject the diluent under the action of the puncture structure. This design automates the entire dilution process, eliminating the need for manual operation and significantly improving testing efficiency. The combination of the puncture structure and the sealing membrane allows for precise control of the diluent's entry into the dilution tray, ensuring accurate and controllable dilution amounts each time. This guarantees the accuracy of the reagent tray's testing and improves the reliability of the results. The magnetic mounting components significantly simplify the installation of the reagent tray and dilution box, improve operational stability and sealing performance, and automate and streamline the dilution process, enhancing the overall reliability and accuracy of the reagent testing process. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0021] Figure 1 This is an exploded view of the magnetic mounting assembly provided in this embodiment of the present invention;

[0022] Figure 2This is a cross-sectional view of the magnetic mounting assembly provided in an embodiment of this utility model;

[0023] Figure 3 This is a perspective view of the magnetic mounting assembly provided in an embodiment of the present utility model;

[0024] Figure 4 This is a perspective view of the reagent tray provided in an embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional view of the reagent tray provided in an embodiment of this utility model.

[0026] Icons: 1500 - Magnetic mounting assembly; 1501 - Magnetic mounting base; 1502 - Reagent tray; 1503 - Tray body; 1504 - Mounting base; 1505 - Covering film; 1506 - Liquid inlet; 1507 - Receptacle; 1508 - Puncture structure; 1509 - Dilution box; 1510 - Magnetic sheet; 1511 - Sealing film; 1512 - Perforation; 1513 - Mounting body; 1514 - Limiting mechanism; 1515 - Positioning structure; 1516 - Mounting structure; 1518 - Magnet mounting cavity; 1519 - Magnet; 1520 - Protruding structure; 1521 - Adjusting toothed ring; 1522 - Fixing bolt; 1523 - Arc-shaped protruding structure; 1524 - Closing groove; 1525 - Limiting protrusion; 1526 - Puncture blade; 1527 - Holding wall; 1528 - Diluent channel; 1529 - Flow channel; 1530 - Enclosing wall; 1531 - Liquid inlet channel; 1532 - Engaging platform; 1533 - Opening and closing groove; 1534 - Engaging protrusion; 1535 - External hole. Detailed Implementation

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Example 1:

[0030] Please see Figures 1 to 5This invention provides a magnetic mounting assembly 1500 for testing reagent tray 1502, comprising a magnetic mounting base 1501 and a reagent tray 1502. The reagent tray 1502 includes a tray body 1503 and a mounting base 1504 connected to the tray body 1503. A film 1505 covers the top of the tray body 1503. The tray body 1503 has a liquid inlet 1506, and the mounting base 1504 has a receiving cavity 1507 communicating with the liquid inlet 1506. The inner wall of 1506 is provided with a puncture structure 1508. A dilution box 1509 and a magnetic sheet 1510 are disposed within the receiving cavity 1507. The magnetic sheet 1510 engages with the inner wall of the receiving cavity 1507, confining 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, located at the bottom end of the puncture structure 1508. The magnetic sheet 1510 has a perforation 1512. The magnetic mounting base 1501 includes a mounting body 15. 13 and a limiting mechanism 1514 disposed on the mounting body 1513. The limiting mechanism 1514 includes a positioning structure 1515 and a mounting structure 1516. The positioning structure 1515 and the mounting structure 1516 are respectively connected to the top end of the mounting body 1513. The positioning structure 1515 is disposed on the outer periphery of the mounting structure 1516. The mounting structure 1516 is provided with a magnet mounting cavity 1518. A magnet 1519 is disposed in the magnet mounting cavity 1518. A protrusion structure 1520 is provided on the top of the magnet 1519. The perforation 1512 is used so that when the mounting base 1504 is connected to the magnetic mounting base 1501, the magnetic sheet 1510 is attracted by the magnet 1519, and the protrusion structure 1520 on the top of the magnetic mounting base 1501 passes through the perforation 1512 and abuts against the dilution box 1509. As the dilution box 1509 moves upward in the accommodating cavity 1507, the sealing film 1511 is cut open by the puncture structure 1508, and the diluent in the dilution box 1509 enters the disc body 1503 through the puncture structure 1508.

[0031] Specifically, this embodiment proposes a magnetic mounting assembly 1500 for reagent tray 1502 detection, including a magnetic mounting base 1501 and a reagent tray 1502. Through a unique structural design, it achieves rapid installation of the reagent tray 1502, automatic liquid filling of the dilution box 1509, and high precision and high reliability of the detection process.

[0032] The reagent tray 1502 includes a tray body 1503 and a mounting base 1504. The mounting base 1504 is connected to the tray body 1503. The top of the tray body 1503 is covered with a film 1505 to ensure the sealing of the reagent tray 1502 when not in use. An inlet 1506 is provided on the tray body 1503. A receiving cavity 1507 is provided inside the mounting base 1504, communicating with the inlet 1506, for accommodating the dilution cartridge 1509 during testing. A puncture structure 1508 is provided on the inner wall of the inlet 1506. Preferably, the puncture structure 1508 includes a puncture blade 1526 and supporting walls 1527 on both sides of the puncture blade 1526, for cutting open the sealing film 1511 on the top of the dilution cartridge 1509 when it is moved to a suitable position, thereby allowing the diluent to enter the tray body 1503. The 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 cavity 1507, thereby firmly restricting the dilution box 1509 between the magnetic sheet 1510 and the puncture structure 1508, so as to ensure that the dilution box 1509 will not move during the injection process.

[0033] The magnetic mounting base 1501 includes a mounting body 1513 and a limiting mechanism 1514 disposed on the mounting body 1513. The limiting mechanism 1514 consists of a positioning structure 1515 and a mounting structure 1516. The positioning structure 1515 is disposed on the outer periphery of the mounting structure 1516, and the mounting structure 1516 is connected to the top of the mounting body 1513. The mounting structure 1516 has a magnet mounting cavity 1518, in which a magnet 1519 is placed. The top of the magnet 1519 has a protruding structure 1520. The magnetic mounting base 1501 is used to securely mount the reagent tray 1502 onto the detection equipment, while ensuring that the dilution cartridge 1509 is effectively supported during the detection process. The design of the positioning structure 1515 allows the reagent tray 1502 to automatically align with the magnetic mounting base 1501 during installation, ensuring the stability and accuracy of the installation.

[0034] The dilution box 1509 is fixed in the accommodating cavity 1507 by a magnetic sheet 1510, and the top of the dilution box 1509 is covered with a sealing film 1511. During installation, the reagent tray 1502 is connected to the magnetic mounting base 1501 via the mounting base 1504. Due to the attractive force of the magnet 1519, the perforation 1512 on the magnetic sheet 1510 is aligned with the protrusion 1520 on the magnetic mounting base 1501. When the two are connected, the protrusion 1520 passes through the perforation 1512 of the magnetic sheet 1510, abuts against the dilution box 1509, and pushes the dilution box 1509 to a position close to the puncture structure 1508. When the protruding structure 1520 pushes the dilution box 1509 upward, the sealing film 1511 on the top of the dilution box 1509 comes into contact with and is pierced by the puncture structure 1508, allowing the diluent in the dilution box 1509 to be smoothly injected into the inlet 1506 in the disc 1503 through the puncture structure 1508. This process ensures that the liquid in the dilution box 1509 can be effectively injected into the disc 1503 without leakage or contamination.

[0035] The operator aligns the reagent tray 1502 with the magnetic mounting base 1501. Using the attractive force of the magnet 1519, the reagent tray 1502 and the magnetic mounting base 1501 automatically align. Through the cooperation of the protruding structure 1520 and the perforation 1512, the dilution box 1509 is pushed upwards to the appropriate position, and the puncture structure 1508 cuts open the sealing film 1511. The diluent in the dilution box 1509 enters the tray body 1503 through the puncture structure 1508, completing the liquid injection.

[0036] The magnetic mounting base 1501 and magnetic sheet 1510 work together to automate the alignment and installation of the reagent tray 1502 and dilution box 1509, reducing manual intervention and the possibility of misoperation. The dilution box 1509 is sealed by a sealing film 1511 when not in use; the sealing film 1511 is only opened when diluent is needed, avoiding contamination before use and improving the safety of the diluent. The design of the puncture structure 1508 and the protrusion structure 1520 ensures the stable position of the dilution box 1509 during injection, with precise puncture, guaranteeing consistent diluent volume each time, thereby improving the accuracy and consistency of the test. This magnetic mounting assembly 1500 is suitable for the testing process of reagent trays 1502 in biochemical analyzers, immunoassay analyzers, etc., and can significantly improve the automation level of reagent testing and the reliability of results. Especially in testing processes that require frequent replacement of reagent trays 1502 and dilution boxes 1509, this invention can effectively reduce operation time, reduce human intervention and errors, and improve the overall efficiency of the testing system. The magnetic mounting assembly 1500 of this utility model overcomes the problems of complex installation, poor sealing and cumbersome operation of reagent tray 1502 in the prior art through its unique structural design, and realizes the automation, high efficiency and high reliability of the detection process of reagent tray 1502.

[0037] Example 2:

[0038] In this embodiment, based on Embodiment 1, an adjusting toothed ring 1521 is provided on the outer periphery of the mounting body 1513. It also includes a fixing bolt 1522. A mounting hole is provided at the bottom of the mounting body 1513, a connecting hole adapted to the mounting hole is provided on the magnet 1519, and a threaded hole is provided on the protruding structure 1520. One end of the threaded rod of the fixing bolt 1522 passes through the mounting hole, the connecting hole, and the threaded hole in sequence and is fixed to the mounting body 1513, the magnet 1519, and the protruding structure 1520. Multiple sets of arc-shaped protruding structures 1523 are arranged around and spaced apart on the inner wall of the positioning structure 1515, and adjacent arc-shaped protruding structures 1523 project into a constricted groove 1524.

[0039] The magnetic mounting base 1501 has an adjusting gear ring 1521 on its outer periphery of the mounting body 1513. This adjusting gear ring 1521 is used to adjust the position of the magnetic mounting base 1501 during installation, ensuring precise alignment between the reagent tray 1502 and the magnetic mounting base 1501. By meshing with corresponding gears on the device, the adjusting gear ring 1521 can precisely adjust the position of the mounting body 1513, thus achieving a fine-tuning function to ensure accurate docking of the reagent tray 1502 with the testing equipment. This design improves the flexibility of the equipment, making the installation process more efficient and the operation more convenient.

[0040] To further enhance the robustness of the connection between the magnetic mounting base 1501 and the reagent tray 1502, this embodiment also includes a fixing bolt 1522. The bottom of the mounting body 1513 has a mounting hole, and the magnet 1519 also has a connection hole that matches the mounting hole. Furthermore, the raised structure 1520 has a threaded hole, and the threaded rod of the fixing bolt 1522 passes sequentially through the mounting hole, the connection hole, and the threaded hole, firmly fixing the mounting body 1513, the magnet 1519, and the raised structure 1520 together. This fixing structure design not only enhances the connection robustness of the magnetic mounting base 1501 but also effectively prevents loosening due to external forces during the testing process of the reagent tray 1502. The tightening of the threads ensures that the mounting structure 1516 remains stable during high-frequency use, guaranteeing the reliability and consistency of the testing equipment.

[0041] The inner wall of the positioning structure 1515 is surrounded and spaced with multiple sets of arc-shaped protrusions 1523, forming a converging groove 1524 between adjacent arc-shaped protrusions 1523. When the magnetic mounting base 1501 mates with the mounting body 1513, the arc-shaped protrusions 1523 can cooperate with the limiting mechanism 1514 of the mounting body 1513 to automatically align during the connection process, thereby ensuring installation accuracy. The design of the arc-shaped protrusions 1523 and the converging groove 1524 also has the functions of limiting and anti-slip. During installation, when the protrusions of the arc-shaped protrusions 1523 and the limiting mechanism 1514 cooperate with each other, the rotation or sliding of the mounting body 1513 can be effectively prevented. This design not only enhances the stability of the installation, but also provides clear feedback during the loading and unloading process, allowing operators to clearly perceive whether the installation is correct and avoid incorrect operation.

[0042] The use of adjusting gear ring 1521 and fixing bolt 1522 makes the connection of the mounting body 1513 more stable. Simultaneously, the precise alignment function of adjusting gear ring 1521 allows for fine-tuning during installation, ensuring the reagent tray 1502 maintains its optimal position in the testing equipment and avoiding errors. The design of the arc-shaped protrusion structure 1523 and the constriction groove 1524 provides an automatic alignment function during installation, ensuring accurate alignment between the dilution box 1509 and the puncture structure 1508. This design also has a good limiting function, preventing the reagent tray 1502 from sliding and rotating during installation, improving the overall structural stability. Through optimized design, the installation and removal of the reagent tray 1502 becomes simpler, reducing the time and accuracy errors associated with manual adjustments. The cooperation between adjusting gear ring 1521 and arc-shaped protrusion structure 1523 makes the entire operation smoother, significantly improving the operating efficiency of the equipment. By adding an adjusting gear ring 1521, a fixing bolt 1522, and an arc-shaped protrusion structure 1523, this embodiment further improves the installation accuracy, operation convenience, and structural stability of the reagent tray 1502 detection device, thereby better meeting the high precision and high reliability requirements of biochemical detection equipment for the reagent tray 1502.

[0043] Example 3:

[0044] Based on Embodiment 2, the mounting base 1504 has a limiting protrusion 1525 on its outer periphery that matches the closing groove 1524. The piercing structure 1508 includes a piercing blade 1526 and supporting walls 1527 disposed on both sides of the piercing blade 1526. The piercing blade 1526 and the two sets of supporting walls 1527 are connected to the inner wall of the liquid inlet 1506, and the two sets of supporting walls 1527 enclose to form a diluent channel 1528. The disc body 1503 has a flow channel 1529, and the diluent channel 1528 communicates with the flow channel 1529 of the disc body 1503. The outer periphery of the liquid inlet 1506 is provided with a surrounding wall 1530. The top surface of the surrounding wall 1530 is on the same plane as the top of the supporting wall 1527. The surrounding wall 1530 has a liquid inlet channel 1531, and the liquid inlet channel 1531 communicates with the diluent channel 1528.

[0045] In this embodiment, the outer periphery of the mounting base 1504 is provided with a limiting protrusion 1525 that matches the converging groove 1524 in the positioning structure 1515. The limiting protrusion 1525 can cooperate with the converging groove 1524 when the mounting base 1504 is combined with the magnetic mounting base 1501 to provide additional positioning and limiting functions. The cooperation between the limiting protrusion 1525 and the converging groove 1524 ensures stable alignment of the mounting base 1504 during connection, effectively preventing rotation or displacement during assembly or operation. This design makes the connection between the mounting base 1504 and the magnetic mounting base 1501 more robust and stable, thereby improving the operational reliability and consistency of the reagent tray 1502 during testing.

[0046] The puncture structure 1508 includes a puncture blade 1526 and two sets of supporting walls 1527 disposed on both sides of the puncture blade 1526. The puncture blade 1526 is used to cut open the sealing membrane 1511 at the top of the dilution box 1509 when it reaches a predetermined position, allowing the diluent to flow out smoothly. The supporting walls 1527 provide support during the puncture process to ensure stability and prevent displacement. The two sets of supporting walls 1527 enclose a diluent channel 1528, which communicates with the flow channel 1529 inside the disc body 1503. When the dilution box 1509 is pushed towards the puncture structure 1508, the puncture blade 1526 cuts open the sealing membrane 1511, and the diluent enters the disc body 1503 through the diluent channel 1528, achieving a precisely controlled injection process. The optimized design of the puncture structure 1508 effectively ensures that the liquid in the dilution box 1509 can be accurately and leak-free injected into the reagent tray 1502, avoiding the risk of liquid diffusion or contamination. At the same time, the setting of the holding wall 1527 increases the stability of the puncture process, ensuring that the puncture blade 1526 will not deviate when cutting the sealing membrane 1511, further improving the accuracy of operation and the reliability of detection.

[0047] In this embodiment, an enclosing wall 1530 is provided around the outer periphery of the liquid inlet 1506. The top surface of the enclosing wall 1530 is on the same plane as the top of the supporting wall 1527 in the puncture structure 1508, thus providing a smooth channel for the flow of liquid. The enclosing wall 1530 has an inlet channel 1531, which communicates with the diluent channel 1528, making the flow of diluent smoother when injected into the tray 1503. The design of the enclosing wall 1530 provides effective guidance for the flow of diluent, ensuring that the diluent can smoothly enter the interior of the tray 1503 from the dilution box 1509. At the same time, the enclosing wall 1530 and the supporting wall 1527 are on the same plane, which helps to prevent the liquid from overflowing or deviating during the flow, ensuring the accuracy and safety of the injection.

[0048] The fitting of the limiting protrusion 1525 on the outer periphery of the mounting base 1504 with the closing groove 1524 further ensures precise alignment of components during installation, reduces the possibility of human error, and improves overall installation stability. The piercing blade 1526 and the supporting wall 1527 in the piercing structure 1508 ensure that the dilution box 1509 can accurately cut open the sealing membrane 1511 during liquid injection, guaranteeing quantitative and directional injection of the diluent while preventing liquid spillage and contamination. The planar design of the enclosing wall 1530 and the supporting wall 1527 on the outer periphery of the inlet 1506 allows the diluent to flow smoothly as it is injected into the tray 1503 through the piercing structure 1508, avoiding unnecessary interference during injection and further improving the accuracy of reagent detection. By optimizing the design of the mounting base 1504 and the piercing structure 1508, the installation stability and injection safety of the equipment are improved, reducing the failure rate caused by loosening or misoperation during use and extending the service life of the equipment. By optimizing the design of the limiting protrusion 1525, the puncture structure 1508, and the enclosure 1530 of the liquid inlet 1506, this embodiment significantly improves the accuracy, stability, and ease of operation of the magnetic mounting assembly 1500 used for reagent tray 1502 detection during installation and operation, thereby better meeting the requirements of biochemical detection equipment for high precision and high reliability in the reagent injection process.

[0049] Example 4:

[0050] Based on Embodiment 3, the accommodating cavity 1507 is provided with multiple sets of engaging platforms 1532. The top of the engaging platform 1532 is provided with an opening and closing groove 1533. The outer periphery of the magnetic sheet 1510 is provided with engaging protrusions 1534 that match the engaging platforms 1532. The engaging protrusions 1534 and the opening and closing grooves 1533 are adapted to each other. An installation channel is formed between the engaging platforms 1532 so that the engaging protrusions 1534 can be rotated and engaged into the opening and closing grooves 1533 after passing through the installation channel. The mounting body 1513 is provided with one or more external holes 1535.

[0051] In this embodiment, the accommodating cavity 1507 is provided with multiple sets of engaging platforms 1532, and each engaging platform 1532 has an opening and closing groove 1533 on its top. The outer periphery of the magnetic sheet 1510 is provided with engaging protrusions 1534 that match the engaging platforms 1532. The engaging protrusions 1534 can be adapted to the opening and closing grooves 1533 on the engaging platforms 1532 to achieve reliable fixation and installation. When the magnetic sheet 1510 is inserted into the accommodating cavity 1507, the engaging protrusions 1534 on the magnetic sheet 1510 first pass through the installation channel formed in the accommodating cavity 1507, and then, through a rotational action, the engaging protrusions 1534 engage with the opening and closing grooves 1533 on the engaging platforms 1532, finally firmly locking the magnetic sheet 1510 into the opening and closing grooves 1533.

[0052] This design effectively enhances the stability of the magnetic sheet 1510 and the receiving cavity 1507, preventing the magnetic sheet 1510 from loosening due to vibration or external force during testing. The structural design of the locking platform 1532 and the opening and closing groove 1533 ensures that the magnetic sheet 1510 can be quickly installed and firmly fixed, while providing a convenient disassembly method, reducing the complexity and error in the operation process. By setting the installation channel, the magnetic sheet 1510 can be inserted first and then rotated into place, avoiding damage or misalignment caused by direct insertion. The rotational installation method also makes the entire installation process smoother, helping to improve operational efficiency.

[0053] The mounting body 1513 has one or more external connection holes 1535, which can be used to connect other devices or auxiliary installation tools. For example, when it is necessary to operate in conjunction with other testing equipment, the external connection holes 1535 can be used to connect the devices, thereby enhancing the expandability of the equipment.

[0054] The external port 1535 provides a flexible expansion interface for the magnetic mounting assembly 1500, facilitating the installation and integration of external devices. For example, in a laboratory environment, the external port 1535 can be used to mount mounting brackets or connect sensors, detection instruments, etc., enhancing the versatility of the detection and the adaptability of the equipment.

[0055] The combination of multiple sets of locking platforms 1532, opening and closing slots 1533, and locking protrusions 1534 on the magnetic sheet 1510 makes the installation and fixation of the magnetic sheet 1510 more stable, avoiding the problem of the magnetic sheet 1510 loosening during the testing process. At the same time, the rotation-locking method improves the ease of operation, making the installation process quick and reliable. The cooperative design of the locking platforms 1532 and opening and closing slots 1533 makes the installation and disassembly process simpler; operators only need to perform simple insertion and rotation operations to complete installation and disassembly. This design not only improves operational efficiency but also makes the equipment maintenance process more convenient, reducing the risk of failure caused by complex operations. The design of the external connection hole 1535 on the mounting body 1513 allows the magnetic mounting assembly 1500 to be connected to other devices in various ways, enhancing the compatibility and adaptability of the equipment. Through the external connection hole 1535, other auxiliary devices can be easily integrated, thereby expanding the functionality of the testing equipment and improving the diversity of experimental and testing needs.

[0056] This preferred embodiment can be used in various complex laboratory environments, and is particularly suitable for biochemical testing equipment that requires frequent replacement of reagent tray 1502 and dilution box 1509. By adding multiple sets of locking platforms 1532 and locking protrusions 1534, a stable installation of the dilution box 1509 and magnetic sheet 1510 is achieved, improving the safety and reliability of the testing process. Furthermore, the external connection port 1535 allows this component to be used with more laboratory equipment, meeting multifunctional testing needs. This preferred embodiment, through the design of multiple sets of locking platforms 1532 and locking protrusions 1534, significantly improves the installation stability and ease of operation of the magnetic mounting component 1500; the external connection port 1535 provides more possibilities for flexible expansion of the equipment, thereby better meeting the various needs of the reagent tray 1502 testing process and ensuring the efficiency and stability of the testing process.

[0057] In summary, the above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of the present utility model.

Claims

1. A magnetic mounting assembly for reagent tray detection, characterized in that, Includes a magnetic mounting base and a reagent tray; The reagent tray includes a tray body, a cover film, and a mounting base connected to the tray body. The cover film covers the top of the tray body. The tray body has a liquid inlet, and the mounting base has a receiving cavity that communicates with the liquid inlet. The inner wall of the liquid inlet has a puncture structure. The receiving cavity contains a dilution box and a magnetic sheet. The magnetic sheet engages with the inner wall of the receiving cavity and confines the dilution box between the magnetic sheet and the puncture structure. The top of the dilution box has a sealing film located at the bottom of the puncture structure, and the magnetic sheet has a perforation. The magnetic mounting base includes a mounting body and a limiting mechanism disposed on the mounting body. The limiting mechanism includes a positioning structure and a mounting structure. The positioning structure and the mounting structure are respectively connected to the top end of the mounting body. The positioning structure is disposed on the outer periphery of the mounting structure. The mounting structure has a magnet mounting cavity, in which a magnet is disposed. The top of the magnet has a protruding structure.

2. The magnetic mounting assembly for reagent tray detection according to claim 1, characterized in that, An adjustment toothed ring is provided on the outer periphery of the mounting body.

3. The magnetic mounting assembly for reagent tray 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 adapted to the mounting hole is provided on the magnet, a threaded hole is provided on the protrusion 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 and is fixed to the mounting body, the magnet and the protrusion structure.

4. The magnetic mounting assembly for reagent tray detection according to claim 1, characterized in that, The inner wall of the positioning structure is surrounded by multiple sets of arc-shaped protrusions spaced apart, and a converging groove is formed between adjacent arc-shaped protrusions.

5. A magnetic mounting assembly for reagent tray detection according to claim 4, characterized in that, The mounting base has a limiting protrusion on its outer periphery that matches the constriction groove.

6. A magnetic mounting assembly for reagent tray detection according to claim 1, characterized in that, The puncture structure includes a puncture blade and supporting walls disposed on both sides of the puncture blade. The puncture blade and the two sets of supporting walls are connected to the inner wall of the liquid inlet, and the two sets of supporting walls enclose a diluent channel. The disc body has a flow channel, and the diluent channel is connected to the flow channel of the disc body.

7. A magnetic mounting assembly for reagent tray detection according to claim 6, characterized in that, An enclosing wall is provided around the liquid inlet, the top surface of the enclosing wall is on the same plane as the top of the supporting wall, and the enclosing wall has a liquid inlet channel that is connected to the diluent channel.

8. A magnetic mounting assembly for reagent tray detection according to claim 1, characterized in that, The cavity is provided with multiple sets of locking platforms. The top of each locking platform is provided with an opening and closing groove. The outer periphery of the magnetic sheet is provided with locking protrusions that match the locking platforms. The locking protrusions are adapted to the opening and closing grooves. An installation channel is formed between the locking platforms so that the locking protrusions can be rotated and locked into the opening and closing grooves after passing through the installation channel.

9. A magnetic mounting assembly for reagent tray detection according to claim 1, characterized in that, The mounting body has one or more external holes.

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