Checking box convenient to disassemble and assemble and used for inspection

Abstract

The utility model relates to the technical field of inspection devices, in particular to an inspection cartridge convenient to disassemble and assemble, which comprises a lower cover, an upper cover, an upper cover, a lower cover and an upper cover, the body is provided with a cavity for accommodating a specimen, and a second buckling edge is arranged on the body; the plate body is arranged between the lower cover and the body and is used for bearing a specimen; wherein the first buckling edge can be clamped with the second buckling edge, so that the lower cover and the body clamp the plate body, the cartridge provided by the embodiment of the utility model is convenient to disassemble and assemble, and meanwhile, the assembly precision is ensured.

Description

Technical Field

[0001] This utility model relates to the field of inspection device technology, and in particular to an inspection cartridge that is easy to assemble and disassemble. Background Technology

[0002] Biological chip cartridges are essential tools in the process of sample testing using biochips. They are primarily used to hold and secure the biochip to be tested. Currently, commercially available biological chip cartridges typically use an upper and lower cover clamping method to secure the sample-bearing plate. One typical structure has multiple positioning posts on the lower cover and corresponding positioning holes on the upper cover, with the plate secured by the interaction of the positioning posts and holes.

[0003] However, this structure presents several technical challenges: First, the way the positioning posts and holes mate during assembly can easily damage them. If a positioning post breaks or deforms, it not only affects the assembly process but also causes the entire sealing system to fail. Since biochip samples are almost always liquids, compromised sealing can lead to leakage or cross-contamination, severely impacting the accuracy of test results. Second, the multiple positioning posts and holes increase assembly difficulty, requiring simultaneous alignment of multiple positions, which can create a bottleneck in mass production at in vitro diagnostic reagent manufacturing plants. Third, after the user completes the sample-biochip reaction, a laser scan of the chip (usually a glass slide) is required. If the positioning posts are difficult to assemble or disassemble, it could result in cuts to the operator or chip breakage, which is particularly inconvenient in clinical testing settings. Utility Model Content

[0004] This utility model provides an inspection cartridge that is easy to assemble and disassemble while ensuring assembly accuracy.

[0005] This utility model provides a test cartridge that is easy to assemble and disassemble, comprising: a lower cover with a first fastening edge movably disposed on the lower cover; a body having a cavity for accommodating a specimen, with a second fastening edge disposed on the body; and a plate disposed between the lower cover and the body for carrying the specimen; wherein the first fastening edge can engage with the second fastening edge to clamp the plate between the lower cover and the body.

[0006] In one possible implementation, there are two first snap-on edges and two second snap-on edges, with the two first snap-on edges used to snap onto the two second snap-on edges respectively.

[0007] In one possible implementation, the first fastening edge extends along the length direction of the lower cover; the second fastening edge extends along the length direction of the body.

[0008] In one possible implementation, one of the lower cover and the body is made of a rigid material, while the other is made of a flexible material.

[0009] In one possible implementation, the lower cover further includes a base plate, and the first fastening edge includes: a flipping part rotatably connected to the base plate; a fastening part connected to the flipping part for engaging the second fastening edge; and a force-applying part connected to the flipping part for separating the fastening part and the second fastening edge.

[0010] In one possible implementation, a groove is provided on the side of the lower cover facing the main body, and an opening is provided at one end of the groove along the extending direction. The main body and the plate can slide along the groove and can slide into or out of the groove through the opening.

[0011] In one possible implementation, the chute includes: a first limiting groove for limiting the plate body in the width direction; and a second limiting groove for limiting the body body in the width direction.

[0012] In one possible implementation, the lower cover is made of a flexible material, and the cartridge also includes a buffer element sandwiched between the body and the plate; wherein, when the first fastening edge engages with the second fastening edge, the body and the plate clamp the buffer element, and the plate abuts against the first limiting groove.

[0013] In one possible implementation, the buffer is provided with a first through hole corresponding to the cavity, and the lower cover is provided with a second through hole corresponding to the cavity. Multiple cavities, first through holes and second through holes are provided, and the multiple cavities are separated by partitions.

[0014] In one possible implementation, a top cover is also included, which is fastened to the side of the body away from the bottom cover to seal the cavity.

[0015] The inspection cartridge provided by this utility model is easy to assemble and disassemble. It has a first fastening edge that is movable on the lower cover and a second fastening edge that cooperates with it on the main body. The plate is clamped by the interlocking action of the two. The operator does not need to align multiple positioning posts and positioning holes at the same time. He only needs to place the main body in place and the first fastening edge and the second fastening edge can be used to fix it. No tools are needed for assembly and disassembly. It can be done directly by fingers, which is convenient for assembly and disassembly. Moreover, the clamping of the plate by the first fastening edge and the second fastening edge increases the contact area at the connection between the main body and the lower cover. It will not affect the overall assembly accuracy due to unreliable local connection when the positioning posts and positioning holes are connected, thus ensuring the assembly accuracy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is an exploded structural diagram of an inspection cartridge that is easy to disassemble and assemble, provided by this utility model.

[0018] Figure 2 This is a three-dimensional schematic diagram of a lower cover provided by this utility model.

[0019] Figure 3 This is a top view of the structure of a lower cover provided by this utility model.

[0020] Figure 4 This is a schematic diagram of the planar structure of a lower cover provided by this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the body provided by this utility model.

[0022] Figure label:

[0023] 1. Lower cover; 11. First fastening edge; 111. Flip-over part; 112. Fastening part; 113. Force-applying part; 114. Hollow structure; 12. Base plate; 13. Sliding groove; 131. First limiting groove; 132. Second limiting groove; 14. Opening; 15. Second through hole;

[0024] 2. Body; 21. Cavity; 22. Second snap-fit ​​edge; 23. Partition plate; 24. Mounting groove;

[0025] 3. Plate body;

[0026] 4. Buffer component; 41. First through hole;

[0027] 5. Top cover. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] The following is combined Figure 1-5This utility model describes an easy-to-assemble and disassemble inspection cartridge, comprising: a lower cover 1, a body 2, and a plate 3, wherein:

[0030] The lower cover 1 has a movable first snap-edge 11.

[0031] The main body 2 has a cavity 21 for accommodating the specimen, and a second fastening edge 22 is provided on the main body 2.

[0032] The plate 3 is positioned between the lower cover 1 and the main body 2 to hold the sample. The plate 3 is also called a chip, and it usually has a specific coating and biological materials, including nucleic acid probes, protein probes or cells, are spotted on it.

[0033] The first snap-on edge 11 can be engaged with the second snap-on edge 22 to clamp the lower cover 1 and the body 2 together with the plate 3.

[0034] In this invention, a first fastening edge 11 is movably set on the lower cover 1, and a second fastening edge 22 is set on the main body 2 to cooperate with it. The plate body 3 is clamped by the snap-fit ​​action of the two. The operator does not need to align multiple positioning posts and positioning holes at the same time. He only needs to place the main body 2 in place, and the fixation can be completed by the snap-fit ​​action of the first fastening edge 11 and the second fastening edge 22. No tools are needed during the assembly and disassembly process. It can be completed directly by the fingers, which is convenient for assembly and disassembly. Moreover, the clamping of the plate body 3 by the snap-fit ​​action of the first fastening edge 11 and the second fastening edge 22 increases the contact area at the connection between the main body 2 and the lower cover 1. It will not affect the overall assembly accuracy due to the unreliable connection of the positioning posts and positioning holes, and can ensure the assembly accuracy.

[0035] In related technologies, existing cartridges are generally fixed by the insertion and mating of positioning pins and positioning holes. However, because the positioning pins are too thin, they are prone to breakage due to insufficient material strength. Furthermore, this multi-point connection means that if a single positioning pin fails, the reliability of the connection between the main body 2 and the lower cover 1 will be affected, impacting the overall sealing performance. Moreover, to ensure a reliable connection between the main body 2 and the lower cover 1, an interference fit is used between the positioning pins and positioning holes. Disassembling the main body 2 and the lower cover 1 requires tools, which can easily cause the plate 3 to break. Since the plate 3 is typically made of glass, it can easily scratch the user, posing a safety hazard.

[0036] In this embodiment of the invention, a snap-fit ​​mechanism is achieved by movably setting a first snap-fit ​​edge 11 on the lower cover 1 and a second snap-fit ​​edge 22 on the body 2. In clinical testing laboratories, when performing multiple sample tests, the cartridge usually needs to be disassembled for laser scanning after the reaction. Traditional bolt-fixed or snap-fit ​​structures often require tools for disassembly and assembly, which is cumbersome and time-consuming, and errors can easily lead to personnel injury or plate breakage. The movable snap-fit ​​structure used in this application allows operators to disassemble and assemble using only their fingers, reducing the time for each disassembly and assembly from 1-2 minutes to just a few seconds. Secondly, during sample testing, sealing performance directly affects the accuracy of the test results. This application uses the snap-fit ​​mechanism of the first snap-fit ​​edge 11 and the second snap-fit ​​edge 22 to stably clamp the lower cover 1 and the body 2 onto the plate 3, forming a reliable sealing structure that effectively prevents sample leakage and cross-contamination. Furthermore, this structural design facilitates mass production, reduces production costs, and improves product yield. When disassembling the main body 2 and the lower cover 1, you only need to separate the first snap edge 11 and the second snap edge 22 by hand, which avoids the problem of the plate 3 breaking due to the use of tools and improves the safety of use.

[0037] In some embodiments, there are two first fastening edges 11 and two second fastening edges 22, and the two first fastening edges 11 are used to snap onto the two second fastening edges 22 respectively.

[0038] This embodiment of the invention further defines the specific setting of the snap-fit ​​edges, employing a structure in which two first snap-fit ​​edges 11 respectively snap onto two second snap-fit ​​edges 22. This symmetrical design provides better sealing effect and user experience in practical applications. During the testing process, the inspection cartridge often needs to be moved or placed, and a single-sided snap-fit ​​is prone to sealing failure due to uneven force. The double-sided symmetrical snap-fit ​​method adopted in this application ensures that the entire cartridge structure is subjected to uniform force, and even slight collisions during movement will not affect the sealing performance. At the same time, the double-sided design also provides greater operating space, allowing users to choose to disassemble or assemble from either side according to their habits. In terms of manufacturing, the double-sided symmetrical structure also helps to improve the rationality of mold design and the assembly accuracy of the product.

[0039] Specifically, two first fastening edges 11 are symmetrically arranged on the body 2, and two second fastening edges 22 are symmetrically arranged on the lower cover 1. By engaging the two first fastening edges 11 with the two second fastening edges 22 respectively, the reliability of the connection between the body 2 and the lower cover 1 can be further guaranteed.

[0040] Optionally, a single first snap-on edge 11 and a single second snap-on edge 22 can be used, with one end of the body 2 and the lower cover 1 being rotatably connected, and the other end being reliably connected to the body 2 and the lower cover 1 by snapping together the first snap-on edge 11 and the second snap-on edge 22.

[0041] In some embodiments, the first fastening edge 11 extends along the length direction of the lower cover 1; the second fastening edge 22 extends along the length direction of the body 2.

[0042] This invention achieves a significant difference from existing technologies by extending the first snap-fit ​​edge 11 and the second snap-fit ​​edge 22 along their length. Existing technologies commonly use multiple positioning posts and holes to fix the main body and lower cover 1. This structure has obvious drawbacks: firstly, the positioning posts are prone to breakage during assembly and removal; if any positioning post is damaged, the entire sealing system will fail; secondly, the design of multiple positioning points increases assembly difficulty, requiring simultaneous alignment of multiple positions to complete assembly. In contrast, the extended snap-fit ​​structure used in this application provides continuous sealing and fixing effects, and even minor damage in certain areas will not affect the overall sealing performance. Furthermore, the extended structure provides a larger contact area, enhancing the sealing effect.

[0043] In some embodiments, one of the lower cover 1 and the body 2 is made of a rigid material, and the other is made of a flexible material.

[0044] This utility model proposes a technical solution that combines rigid and flexible materials. By employing this combination, the rigid material provides the necessary structural strength, while the flexible material offers good sealing performance and cushioning. Secondly, in terms of manufacturing, this material combination reduces the requirements for parts machining precision, as the flexible material can compensate for certain machining errors, thereby improving product yield and reducing production costs.

[0045] Specifically, the material of the lower cover 1 is much softer than that of the body 2, which can absorb some of the larger pressure and prevent the plate 3 clamped in it from breaking due to excessive pressure during tight assembly. The first buckle 11 is designed on the soft material of the lower cover 1, which has considerable flexibility and will not break easily, thus reducing the breakage loss during the manufacturing process of the plate 3 or the user's mistakes when disassembling it.

[0046] In related technologies, various tenon-and-mortise type cartridges have appeared on the market. Because the injection molding process of tenon-and-mortise type cartridges is extremely precise, a difference of 0.05mm will cause the tenon and mortise to be loose or too tight, resulting in tiny cracks inside the material itself, leading to subsequent breakage.

[0047] In this embodiment of the invention, the lower cover 1 uses a first fastener made of a soft material. Due to the material's properties, it has high flexibility and ductility, making it less prone to cracking. This significantly reduces injection molding precision, making it suitable for OEM manufacturing by most injection molding plants, lowering the mass production threshold, and improving product qualification rates. Furthermore, the body 2, by eliminating the tenon joint structure, also reduces precision requirements. On the other hand, the high-precision machinery required for tenon assembly is not needed in this solution, further reducing the key difficulties in the manufacturing process of chip-like products.

[0048] like Figure 2 and 4 As shown, in some embodiments, the lower cover 1 further includes a base plate 12, and the first fastening edge 11 includes: a flipping part 111, which is rotatably connected to the base plate 12; a fastening part 112, which is connected to the flipping part 111 and is used to engage the second fastening edge 22; and a force-applying part 113, which is connected to the flipping part 111 and is used to separate the fastening part 112 and the second fastening edge 22.

[0049] This embodiment of the invention defines the specific structure of the first fastening edge 11, including three functional components: a flipping part 111, a fastening part 112, and a force-applying part 113. In daily operations at clinical testing laboratories, technicians need to disassemble test cartridges after completing experiments. Traditional fixing structures often require considerable force to complete disassembly and assembly, which can easily lead to operator fatigue after high-throughput testing. The force-applying part 113 in this application provides an ideal point of leverage, reducing the required operating force by utilizing the lever principle, allowing technicians to easily complete disassembly and assembly operations even after long periods of work. Secondly, the rotatable connection design between the flipping part 111 and the base plate 12 ensures precise alignment between the fastening part 112 and the second fastening edge 22, improving the assembly success rate. Furthermore, this structural design also considers protection against misoperation; even in the event of improper operation, the three-section structure effectively prevents component damage.

[0050] Specifically, multiple perforated structures 114 extending along the length direction are provided on the flipping part 111. The perforated structures 114 reduce the overall weight, making it easier for operators to use for extended periods; secondly, during the production process, the perforated design reduces the amount of material used and reduces the unexpected deformation that may occur after injection molding of soft materials; at the same time, the design extending along the length direction ensures the structural strength and will not affect the service life due to the perforations.

[0051] like Figure 3 As shown, in some embodiments, the lower cover 1 is provided with a slide groove 13 on the side facing the body 2, and an opening 14 is provided at one end of the slide groove 13 along the extending direction. The body 2 and the plate 3 can slide along the slide groove 13 and can slide into or out of the slide groove 13 through the opening 14.

[0052] In this invention, the body 2 and the plate 3 are slidably installed by providing a sliding groove 13 with an opening 14 on the lower cover 1. This design is of great significance in practical applications: during the detection of biological samples, the surface of the plate 3 often has special bioactive substances attached, and traditional vertical assembly methods can easily cause damage or detachment of these substances. However, the sliding installation significantly reduces disturbance to the surface of the plate 3, protecting the integrity of the detected substances. Simultaneously, the guiding function of the sliding groove 13 ensures that the plate 3 always maintains the correct position and orientation, avoiding positional deviations during assembly. Furthermore, the sliding groove 13 structure facilitates quick removal and reinstallation when the plate 3 needs to be inspected or cleaned, improving equipment maintenance efficiency.

[0053] In related technologies, the main body 2 and the lower cover 1 are currently fixed by inserting positioning pins and positioning holes. Disassembly requires bending a corner or end of the main body 2 and the lower cover 1, resulting in uneven pressure between them and potentially causing the plate 3 to crack. Furthermore, after disassembling the main body 2 and the lower cover 1, the plate 3 needs to be pried out of the lower cover 1 by hand, which can easily cause bending damage. In this invention, the main body 2 and the plate 3 are assembled in a sliding manner. When disassembling the main body 2 and the lower cover 1, only the first snapping edge 11 and the second snapping edge 22 need to be separated. Then, the main body 2, along with the plate 3, can slide along the sliding groove 13 and slide out through the opening 14, thus completing the disassembly of the main body 2 and the lower cover 1, and also separating the plate 3. The plate 3 does not bend during separation, greatly reducing the risk of damage during disassembly and assembly.

[0054] like Figure 2 and 4 As shown, in some embodiments, the slide 13 includes: a first limiting groove 131 for limiting the plate 3 along the width direction; and a second limiting groove 132 for limiting the body 2 along the width direction.

[0055] In this invention, a double-layer limiting structure is formed by setting a first limiting groove 131 and a second limiting groove 132. In automated testing equipment, the precise positioning of the cassette directly affects the accuracy of the testing results. The first limiting groove 131 is specifically used to limit the lateral position of the plate 3, ensuring precise alignment between the testing area and the testing equipment; the second limiting groove 132 limits the lateral position of the body 2, preventing displacement during operation. This double-layer limiting structure not only improves testing accuracy but also enhances the stability of the overall structure. Especially when the equipment vibrates or moves, the double-layer limiting can effectively prevent relative displacement between components, ensuring the stability of the testing process.

[0056] like Figure 1As shown, in some embodiments, the lower cover 1 is made of flexible material, and the cartridge also includes a buffer 4, which is sandwiched between the body 2 and the plate 3; wherein, when the first fastening edge 11 and the second fastening edge 22 are engaged, the body 2 and the plate 3 clamp the buffer 4, and the plate 3 abuts against the first limiting groove 131.

[0057] In this invention, a flexible material is used to make the lower cover 1, which, combined with the buffer 4, forms a unique sealing and protection system. Compared with existing technologies, traditional structures typically require an additional buffer seal between the lower cover 1 and the plate 3, increasing structural complexity and assembly difficulty. This application, by using a flexible material to make the lower cover 1, enables the lower cover 1 to possess both buffering and sealing functions, simplifying the structural design. In practical applications, when the first snap-fit ​​edge 11 engages with the second snap-fit ​​edge 22, the flexible lower cover 1 can adaptively conform to the surface of the plate 3, forming a reliable seal; simultaneously, the contact between the plate 3 and the first limiting groove 131 ensures positional accuracy. This design not only reduces production costs but also improves product reliability. It is particularly noteworthy that the design of the flexible lower cover 1 does not affect the sliding operation of the body 2 and the plate 3, ensuring ease of assembly.

[0058] like Figure 5 As shown, specifically, the bottom of the main body 2 is provided with a mounting groove 24 to accommodate the buffer component 4, ensuring the installation accuracy of the buffer component 4.

[0059] In some embodiments, the buffer 4 is provided with a first through hole 41 corresponding to the cavity 21, and the lower cover 1 is provided with a second through hole 15 corresponding to the cavity 21. Multiple cavities 21, first through holes 41 and second through holes 15 are provided, and multiple cavities 21 are separated by partitions 23.

[0060] In this invention, by setting multiple corresponding cavities 21, first through holes 41, and second through holes 15, and using partitions 23 for separation, the function of simultaneous multi-sample testing is realized. The multi-chamber design adopted in this application can simultaneously accommodate multiple test samples in one cartridge, significantly improving testing efficiency. The partitions 23 effectively prevent cross-contamination between samples, ensuring accurate and reliable test results for each sample. Furthermore, the corresponding arrangement of multiple through holes facilitates observation and recording of the testing process, improving operational convenience. This design has significant application value in clinical testing laboratories: modern medical testing often requires the simultaneous testing of multiple samples, placing high demands on testing efficiency.

[0061] In some embodiments, an upper cover 5 is also included, which is fastened to the side of the body 2 away from the lower cover 1 to seal the cavity 21.

[0062] In this invention, an upper cover 5 is added to seal the cavity 21 in the main body 2. During biological sample testing, the stability and purity of the sample directly affect the accuracy of the test results. The upper cover 5 effectively prevents external contaminants from entering the testing space and also prevents sample evaporation or spillage. Especially in testing projects requiring constant temperature or light protection, the sealing effect of the upper cover 5 maintains the stability of the testing environment. Furthermore, the upper cover 5 is removable, facilitating sample addition and post-test cleaning.

[0063] The card holder provided by this utility model has the following technical effects: a first fastening edge 11 is movably provided on the lower cover 1, and a second fastening edge 22 is provided on the main body 2 to cooperate with it. The plate body 3 is clamped by the interlocking action of the two.

[0064] Firstly, the use of a first retaining edge 11 that is movably set along the lower cover 1 effectively solves the problem of easy damage to the positioning post in the prior art. This is because: the first retaining edge 11 adopts a movable connection method, which can generate a certain degree of deformation when subjected to external force, avoiding the defect of easy breakage of the positioning post structure due to rigid connection; the engagement between the first retaining edge 11 and the second retaining edge 22 is a surface contact, which distributes the force more evenly and does not cause stress concentration like the point contact between the positioning post and the positioning hole; even if the retaining edge is slightly damaged locally, it will not affect the overall sealing performance, while damage to the positioning post will directly lead to the failure of the seal at that point.

[0065] Secondly, the technical solution of this application simplifies the assembly process. Specifically, the operator does not need to align multiple positioning posts and positioning holes simultaneously; simply placing the body 2 in place and securing it by the snap-fit ​​of the first snap-fit ​​edge 11 and the second snap-fit ​​edge 22 is sufficient. No tools are required during assembly and disassembly; the assembly and disassembly can be completed directly by finger operation. During assembly, the plate 3 remains in a stable clamping state, avoiding the risk of shaking caused by multi-point positioning.

[0066] Furthermore, the clamping structure used in this application provides a more reliable sealing effect: after the first snap-fit ​​edge 11 and the second snap-fit ​​edge 22 are engaged, a uniform clamping force is applied to the plate 3, avoiding uneven local force; the design of the snap-fit ​​structure allows the clamping force to be automatically maintained within a suitable range, neither too tight to damage the plate 3 nor too loose to affect the sealing performance; the entire sealing system does not depend on any specific connection point, thus improving the reliability of the seal.

[0067] Finally, this structural design also has the following advantages: simple structure, fewer parts, reducing production costs; relatively low assembly precision requirements, improving production efficiency; convenient maintenance, and easy replacement even in the event of localized wear.

[0068] In actual use, the cartridge of this utility model is first prepared for installation. The lower cover 1 is placed flat on the workbench, ensuring the opening 14 of the slide groove 13 faces the operator. At this time, the first retaining edges 11 on both sides of the lower cover 1 are in their natural state. Next, the plate 3 is installed. The pre-treated plate 3 is slid into the slide groove 13 along the opening 14 until it is fully inserted into the first limiting groove 131. Since the depth of the first limiting groove 131 matches the thickness of the plate 3, the upper surface of the plate 3 will be basically flush with the upper surface of the lower cover 1 after installation, facilitating subsequent operations. Then, the body 2 is installed. The buffer 4 is pre-installed into the reserved mounting groove 24 of the body 2, and the body 2 is slid along the second limiting groove 132 to cover the plate 3. During this process, the second retaining edge 22 at the bottom of the body 2 will naturally align with the first retaining edges 11 on both sides of the lower cover 1. The body 2 is slid until it reaches the predetermined position, at which point the cavity 21 on the body 2 will precisely correspond to the second through hole 15 on the lower cover 1. Next, the locking device is installed. Press down on the force-applying part 113 of the first snap-fit ​​edge 11 with your finger. Driven by the flipping part 111, the locking part 112 will engage with the second snap-fit ​​edge 22. The operator can visually observe the engagement status through the perforated structure 114 on the first snap-fit ​​edge 11. To ensure a tight seal, the snap-fit ​​operations on both sides must be completed sequentially. Then, check the seal. Gently shake the cartridge to confirm that there is no movement between the body 2 and the lower cover 1, and that the plate 3 is securely clamped. At this point, the buffer 4 forms a reliable seal between the body 2 and the plate 3. Finally, install the upper cover 5. Attach the upper cover 5 to the top of the body 2, sealing all cavities 21. The cartridge installation is now complete, and sample addition and testing operations can be performed.

[0069] When it is necessary to disassemble the plate 3, simply use your fingers to pry outwards the force application part 113 of the first latching edge 11 to release the locking state, and then pull out the body 2 and the plate 3 along the sliding groove 13. The entire disassembly process is simple and quick. It should be noted that since the lower cover 1 is made of flexible material, it can provide a moderate cushioning effect during the disassembly and assembly process, effectively protecting the plate 3.

[0070] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An inspection cassette which is easy to assemble and disassemble, characterized by comprising: include: The lower cover (1) is movably provided with a first fastening edge (11); The body (2) has a cavity (21) for accommodating the specimen, and a second fastening edge (22) is provided on the body (2); The plate (3) is disposed between the lower cover (1) and the main body (2) for carrying the specimen; The first snap-on edge (11) can be engaged with the second snap-on edge (22) to clamp the lower cover (1) and the body (2) together with the plate (3).

2. The easy-to-assemble and disassemble test cassette according to claim 1, wherein There are two first fastening edges (11) and two second fastening edges (22), and the two first fastening edges (11) are used to snap the two second fastening edges (22) respectively.

3. The easy-to-assemble and disassemble test cassette according to claim 1, wherein The first buckle (11) extends along the length direction of the lower cover (1); the second buckle (22) extends along the length direction of the body (2).

4. The easily detachable test cassette according to claim 3, wherein One of the lower cover (1) and the body (2) is made of a rigid material, and the other is made of a flexible material.

5. The easy-to-assemble and disassemble test cassette according to claim 1, wherein The lower cover (1) also includes a base plate (12), and the first snap-on edge (11) includes: The flip-up part (111) is rotatably connected to the base plate (12); The fastening part (112) is connected to the flipping part (111) and is used to snap the second fastening edge (22). The force-applying part (113) is connected to the flipping part (111) and is used to separate the fastening part (112) and the second fastening edge (22).

6. The easily detachable test cassette according to claim 5, wherein The lower cover (1) is provided with a sliding groove (13) on the side facing the body (2). The sliding groove (13) has an opening (14) at one end along the extension direction. The body (2) and the plate (3) can slide along the sliding groove (13) and can slide into or out of the sliding groove (13) through the opening (14).

7. The easily detachable test cassette according to claim 6, wherein The groove (13) includes: The first limiting groove (131) is used to limit the plate (3) along the width direction. The second limiting groove (132) is used to limit the body (2) in the width direction.

8. The easily detachable test cassette according to claim 7, wherein The lower cover (1) is made of flexible material, and the cartridge also includes a buffer (4), which is sandwiched between the body (2) and the plate (3); When the first snap-on edge (11) and the second snap-on edge (22) are engaged, the body (2) and the plate (3) clamp the buffer (4), and the plate (3) abuts against the first limiting groove (131).

9. The easily detachable test cassette according to claim 8, wherein The buffer (4) is provided with a first through hole (41) corresponding to the cavity (21), and the lower cover (1) is provided with a second through hole (15) corresponding to the cavity (21). Multiple cavities (21), first through holes (41) and second through holes (15) are provided, and multiple cavities (21) are separated by partitions (23).

10. The easy-to-assemble and disassemble test cassette according to any one of claims 1 to 9, characterized in that, It also includes an upper cover (5), which is fastened to the side of the body (2) away from the lower cover (1) to close the cavity (21).

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