An immunochromatographic reagent kit

Abstract

This invention provides an immunochromatographic reagent kit, comprising: a bottom shell, a top cover, and a locking block; the top of the bottom shell has a receiving groove for receiving reagent paper; the side wall of the bottom shell has a sliding groove, and the bottom wall of the receiving groove has a through hole communicating with the sliding groove; the top cover is hinged to the bottom shell; the lower surface of the top cover has a buckle, which passes through the through hole into the sliding groove when the top cover is closed on the top of the bottom shell; the locking block is slidably connected to the sliding groove; the side wall of the locking block has a slot along the sliding direction of the locking block, and pushing the locking block causes the slot to engage or disengage with the buckle passing through the sliding groove. This invention achieves the flipping of the top cover by hinged connection between the top cover and the bottom shell, facilitating the placement of reagent paper when the top cover is open in the receiving groove, and also facilitating the locking of the top cover and bottom shell by sliding the locking block in the sliding groove when the top cover is closed in the receiving groove. This makes operation labor-saving and convenient, avoiding deformation or damage to the reagent kit shell due to improper force, and ensuring the quality of the reagent kit.

Description

Technical Field

[0001] This utility model relates to the field of reagent kits, and more specifically to an immunochromatographic reagent kit. Background Technology

[0002] Immunochromatographic reagent kits are tools that utilize the principle of immune reactions to achieve rapid detection. They form visible test lines and control lines by binding antigens or antibodies with markers, and the results can be interpreted by the naked eye or instruments. Due to their small size and convenience, immunochromatographic reagent kits are widely used in many fields such as clinical medical diagnosis, food safety testing, environmental monitoring, and animal and plant disease screening.

[0003] Most commercially available reagent kits use a snap-fit ​​mechanism to engage with the bottom shell. However, operators often need to apply considerable force when engaging the snap-fit ​​mechanism, which is quite strenuous. More importantly, improper or excessive force can easily cause deformation or even breakage of the reagent kit shell, or even damage to the reagent paper inside the kit, affecting its quality and lifespan, and causing many problems and errors in the testing process. Utility Model Content

[0004] The purpose of this invention is to overcome the defects of the prior art and provide an immunochromatographic reagent kit to solve the technical problem that the existing immunochromatographic reagent kits are prone to damage to the kit and reagent paper due to their snap-fit ​​assembly method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention provides an immunochromatographic reagent kit, comprising:

[0007] The bottom shell has a receiving groove at its top for holding reagent paper; the side wall of the bottom shell has a sliding groove, and the bottom wall of the receiving groove has a through hole that communicates with the sliding groove.

[0008] The upper cover is hinged to the bottom shell; the lower surface of the upper cover is provided with a buckle, and when the upper cover is closed on the top of the bottom shell, the buckle passes through the through hole into the sliding groove;

[0009] A locking block is slidably connected to the slide groove; the side wall of the locking block is provided with a slot along the sliding direction of the locking block, and pushing the locking block causes the slot to engage or disengage with a buckle passing through the slide groove.

[0010] In one embodiment, the buckle has a hook-and-loop part protruding at one end near the top cover, and the height of the slot is greater than the height of the hook-and-loop part. When the hook-and-loop part is inserted into the sliding groove, the locking block slides to move the slot until the hook-and-loop part engages or disengages with the hook-and-loop part.

[0011] In one embodiment, the receiving groove is provided with a plurality of limiting protrusions, which together form a limiting area for attaching reagent paper; the through hole is located outside the limiting area.

[0012] In one embodiment, the through hole is located on the side of the limiting area away from the hinge between the bottom shell and the top cover.

[0013] In one embodiment, the number of the latches and the through holes is at least two, all the latches are linearly distributed along the sliding direction of the locking block, and the through holes are provided corresponding to the latches.

[0014] In one embodiment, a diaphragm is provided at the edge of the bottom shell, and the top cover is connected to the side of the diaphragm away from the bottom shell.

[0015] In one embodiment, the bottom shell, the diaphragm, and the top cover are integrally injection molded structures.

[0016] In one embodiment, the sidewall of the slide is provided with a guide rail, the locking block is provided with a guide groove, and the guide groove is sleeved on the guide rail.

[0017] In one embodiment, the depth of the guide groove gradually decreases from the end furthest from the opening of the slide groove to the end closest to the opening of the slide groove.

[0018] In one embodiment, the upper cover is provided with an observation port and a drip port, which are positioned directly opposite the receiving groove.

[0019] The advantages of this invention compared to existing technologies are as follows: This invention achieves the flipping of the top cover by hinged connection between the top cover and the bottom shell. This facilitates the placement of reagent paper when the top cover is open in the receiving slot, and also facilitates locking the top cover and bottom shell by using a locking block to slide in the groove when the top cover is closed in the receiving slot, thereby locking the top cover and bottom shell together. This replaces the traditional top and bottom fastening method, making operation more labor-saving and convenient, avoiding deformation and damage to the reagent kit shell caused by improper or excessive force, and effectively protecting the internal reagent paper from displacement, wrinkling, or breakage due to reagent kit damage, thus improving the quality stability and service life of the reagent kit. At the same time, because the reagent paper can maintain a good condition, the accuracy and reliability of the test results are improved by ensuring the performance of the reagent paper required for testing, providing stronger support for testing work.

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and understandable, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of an immunochromatographic reagent kit provided by this utility model;

[0022] Figure 2 A side view of an immunochromatographic reagent kit provided by this utility model;

[0023] Figure 3 A top view of the bottom shell of an immunochromatographic reagent kit provided by this utility model;

[0024] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at point AA;

[0025] Figure 5 This is a top view of the top cover of an immunochromatographic reagent kit provided by this utility model.

[0026] Figure label:

[0027] 1. Bottom shell; 11. Receiving groove; 12. Sliding groove; 13. Through hole; 14. Limiting protrusion; 15. Guide rail; 16. Limiting groove; 2. Top cover; 21. Buckle; 211. Hook connection; 22. Observation port; 23. Drip outlet; 3. Locking block; 31. Slot; 32. Guide groove; 33. Limiting part; 34. Blocking part; 4. Diaphragm. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The technical solutions of the embodiments 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] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0030] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0031] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0032] See Figure 1-5 As shown, this embodiment discloses an immunochromatographic reagent kit, which includes: a bottom shell 1, a top cover 2, and a locking block 3; the top of the bottom shell 1 is provided with a receiving groove 11 for receiving reagent paper; the side wall of the bottom shell 1 is provided with a sliding groove 12, and the bottom wall of the receiving groove 11 is provided with a through hole 13, which communicates with the sliding groove 12; the top cover 2 is hinged to the bottom shell 1; the lower surface of the top cover 2 is provided with a buckle 21, and when the top cover 2 is closed on the top of the bottom shell 1, the buckle 21 passes through the through hole 13 into the sliding groove 12; the locking block 3 is slidably connected to the sliding groove 12; the side wall of the locking block 3 is provided with a slot 31 along the sliding direction of the locking block 3, and pushing the locking block 3 causes the slot 31 to engage or disengage with the buckle 21 passing through the sliding groove 12.

[0033] In this embodiment of the immunochromatographic reagent kit, during assembly, the top cover 2 is first flipped over to open the receiving slot 11; then, the reagent paper is pasted into the receiving slot 11; next, the top cover 2 is closed on the top of the bottom shell 1, so that the receiving slot 11 is covered. During this process, the buckle 21 moves with the top cover 2 to insert into the through hole 13, so that the end of the buckle 21 away from the top cover 2 enters the slide groove 12; the locking block 3 is inserted into the slide groove 12 and pushed to move towards the end of the slide groove 12 away from the opening of the slide groove 12, so that the slot 31 on the locking block 3 is aligned and engages with the buckle 21, so that the buckle 21 and the locking block 3 in the slide groove 12 of the bottom shell 1 are fixed to each other, thus completing the assembly of the reagent kit.

[0034] In this embodiment, the immunochromatographic reagent kit uses a hinged top cover 2 to the bottom shell 1 to allow the top cover 2 to be flipped. This facilitates the placement of reagent paper when the top cover 2 is open in the receiving slot 11, and also allows the top cover 2 to be closed in the receiving slot 11. The locking block 3 slides in the slide groove 12 to engage the slot 31 with the buckle 21, thus locking the top cover 2 and the bottom shell 1. This replaces the traditional top-and-bottom fastening method, making operation more labor-saving and convenient, avoiding deformation or damage to the reagent kit shell caused by improper or excessive force, and effectively protecting the internal reagent paper from displacement, wrinkling, or breakage due to reagent kit damage. This improves the quality stability and service life of the reagent kit. At the same time, because the reagent paper can maintain a good condition, the accuracy and reliability of the test results are improved by ensuring the performance of the reagent paper required for detection, providing stronger support for the detection work.

[0035] Specifically, the buckle 21 has a protruding hook portion 211 at one end near the upper cover 2. The height of the groove 31 is greater than the height of the hook portion 211. When the hook portion 211 passes through the sliding groove 12, the locking block 3 slides, causing the groove 31 to move until it engages or disengages with the hook portion 211. It can be understood that the side wall of the locking block 3 has a groove 31, forming a blocking portion 34 above the groove 31. When the groove 31 engages with the hook portion 211, the blocking portion 34 abuts against the side of the hook portion 211 near the upper cover 2, restricting the movement of the hook portion 211. When the hook part 211 enters the slide groove 12, the locking block 3 is pushed, and the slot 31 moves with the locking block 3, gradually approaching the hook part 211 until the hook part 211 is fully embedded in the slot 31, and the blocking part 34 abuts against the side of the hook part 211 near the top cover 2, thus realizing the engagement of the buckle 21 and the locking block 3. If it is necessary to disassemble the reagent kit, the locking block 3 is pushed in the opposite direction, and the slot 31 disengages from the hook part 211, releasing the lock between the top cover 2, the bottom shell 1, and the locking block 3, allowing the top cover 2 to be flipped up to expose the reagent paper in the receiving groove 11, so as to facilitate operations such as adjusting the position of the reagent paper. The buckle 21 design with the hook part 211 increases the contact area with the slot 31 and the engagement firmness, preventing the top cover 2 from accidentally detaching from the bottom shell 1 during use, and improving the overall structural stability of the reagent kit.

[0036] Preferably, the hook part 211 can be made of an elastic material, such as a polyolefin elastomer, so that it has a certain buffering property during the snapping and separation process and reduces wear; the inner wall of the slot 31 is provided with anti-slip texture (not shown) to further enhance the snapping effect.

[0037] Specifically, the receiving groove 11 is provided with several limiting protrusions 14, which together form a limiting area for attaching reagent paper; the through hole 13 is located outside the limiting area. When the reagent paper is attached to the limiting area, the limiting protrusions 14 will block it from the edge of the reagent paper, limiting the displacement of the reagent paper in the receiving groove 11 and ensuring that the reagent paper is always in the preset position. The setting of the limiting protrusions 14 can effectively fix the reagent paper and prevent the reagent paper from falling off the limiting area due to vibration or collision during transportation and use, thereby causing displacement or wrinkles. In addition, the limiting protrusions 14 ensure that the reaction area of ​​the reagent paper accurately corresponds to the observation port 22 and the drip port 23 during detection.

[0038] Specifically, the through hole 13 is located in the limiting area on the side away from the hinge between the bottom shell 1 and the top cover 2. When the top cover 2 is closed, the top cover 2 rotates around the hinge, and the side away from the hinge contacts the bottom shell 1 first. The through hole 13 is located here so that the buckle 21 can be inserted into the through hole 13 first, avoiding friction between the buckle 21 and the wall of the receiving groove 11 or the internal parts of the receiving groove 11, improving assembly efficiency, and ensuring the quality of the reagent kit and reagent paper.

[0039] Specifically, there are at least two buckles 21 and two through holes 13. All buckles 21 are linearly distributed along the sliding direction of the locking block 3, and the through holes 13 are provided corresponding to the buckles 21. When the locking block 3 is pushed, the slot 31 can contact and engage with multiple linearly distributed buckles 21. The multiple buckles 21 are restricted by the blocking part 34, so that all buckles 21 are evenly stressed and jointly bear the connection force between the upper cover 2 and the bottom shell 1. This avoids the breakage of a single buckle 21 due to excessive force, and significantly improves the reliability and stability of locking the upper cover 2 and the bottom shell 1.

[0040] Specifically, the bottom shell 1 has a membrane 4 at its edge, and the top cover 2 is connected to the side of the membrane 4 away from the bottom shell 1. More specifically, the membrane 4 has the ability to elastically deform, and the top cover 2 is hinged to the bottom shell 1 through the membrane 4. It can be understood that when the top cover 2 is flipped, the membrane 4 undergoes elastic deformation, providing cushioning and support for the rotation of the top cover 2, allowing the top cover 2 to smoothly open and close. The membrane 4 is relatively thin and light, replacing the traditional hinge structure, simplifying the structure of the reagent kit. At the same time, the elasticity of the membrane 4 allows the top cover 2 to automatically remain open within a certain angle, facilitating the placement of reagent paper by the operator.

[0041] Preferably, the diaphragm 4 is made of polypropylene, polyethylene or ABS plastic film with a thickness of 0.1-0.3 mm, so that the diaphragm 4 has good flexibility and fatigue resistance to ensure sufficient elasticity and connection strength.

[0042] Specifically, the bottom shell 1, diaphragm 4, and top cover 2 are integrally injection molded structures. During the injection molding process, molten plastic material is filled into the mold cavity of the bottom shell 1, diaphragm 4, and top cover 2 in one go, forming a single integral structure after cooling, with no connecting gaps between the parts. Integral injection molding reduces the number of parts and assembly steps, lowers production costs and assembly errors, while also increasing the connection strength between the bottom shell 1, diaphragm 4, and top cover 2, making them less prone to breakage or detachment, thus improving the overall quality of the reagent kit.

[0043] It is understandable that the bottom shell 1, diaphragm 4, and top cover 2 are made of the same material. In specific implementation, ABS plastic, polypropylene, polyethylene, etc. can be used as injection molding materials, which have good toughness and moldability.

[0044] Specifically, the side wall of the slide 12 is provided with a guide rail 15, and the locking block 3 is provided with a guide groove 32, which is sleeved on the guide rail 15. It can be understood that the guide groove 32 is designed to match the shape of the guide rail 15. When the locking block 3 is pushed, it slides along the extension direction of the guide rail 15 through the cooperation of the guide groove 32 and the guide rail 15. The guide rail 15 guides and limits the guide groove 32, ensuring that the locking block 3 can only move along the preset direction of the slide 12 without deviation or shaking.

[0045] Specifically, the depth of the guide groove 32 gradually decreases from the end furthest from the opening of the slide groove 12 to the end closest to the opening of the slide groove 12. Preferably, the maximum difference in the depth of the guide groove 32 is 0.1-0.2 mm, that is, the depth of the guide groove 32 at the end closest to the opening of the slide groove 12 is 0.1-0.2 mm less than the depth at the end furthest from the opening of the slide groove 12. When the locking block 3 slides towards the end furthest from the opening of the slide groove 12, the fit between the guide groove 32 and the guide rail 15 gradually tightens, and the gap between them gradually decreases, which gradually increases the resistance to the movement of the locking block 3 until the locking block 3 is fixed relative to the guide rail 15, that is, it can no longer move, thus achieving the locking of the locking block 3 and the bottom shell 1. This further enhances the connection stability between the buckle 21, the bottom shell 1, and the locking block 3, and prevents the locking block 3 from accidentally sliding out of the bottom shell 1 during the movement or use of the reagent kit, thus affecting the locking state of the top cover 2.

[0046] Specifically, the upper cover 2 is equipped with an observation port 22 and a drip port 23, which are positioned directly opposite the receiving tank 11. During testing, the sample solution is dripped into the drip port 23, and the sample solution will drip directly onto the reagent paper in the receiving tank 11. After the reaction is completed, the reaction result on the reagent paper can be directly observed through the observation port 22. The design of the observation port 22 and the drip port 23 facilitates the testing operation and result observation, eliminating the need to open the upper cover 2, avoiding contamination of the reagent paper by the external environment, and ensuring the accuracy of the drip position and the clarity of the observation.

[0047] Preferably, the observation port 22 is equipped with a cover plate made of transparent polycarbonate material. The transparent cover plate can prevent dust without affecting observation, reducing the difficulty of detection and improving the ease of use.

[0048] Preferably, the bottom shell 1 is provided with a limiting groove 16, which is located on the side wall of the bottom shell 1 where the opening of the sliding groove 12 is located, and communicates with the sliding groove 12. The opening of the limiting groove 16 is larger than the opening of the sliding groove 12. The locking block 3 is provided with a limiting part 33. When the limiting part 33 is embedded in the limiting groove 16, the guide groove 32 and the guide rail 15 are tightly fitted. It can be understood that the design of the limiting groove 16 avoids the locking block 3 from being exposed outside the bottom shell 1, ensuring the aesthetics of the reagent kit, and also restricting the locking block 3 from moving further away from the opening of the sliding groove 12. At the same time, it provides the user with feedback that the locking block 3 has slid into place and that the top cover 2 and the bottom shell 1 are engaged, thus improving the user experience of the reagent kit.

[0049] This embodiment provides an immunochromatographic reagent kit. The top cover is hinged to the bottom shell, allowing it to flip open. This facilitates the placement of reagent paper when the top cover is open in the receiving slot, and also allows for locking when the top cover is closed. A locking block slides within a groove to engage the locking mechanism, replacing the traditional top-and-bottom snap-fit ​​method. This not only makes operation more effortless and convenient, avoiding deformation or damage to the kit shell due to improper or excessive force, but also effectively protects the internal reagent paper, preventing displacement, wrinkling, or breakage due to kit damage. This improves the kit's quality stability and lifespan. Furthermore, because the reagent paper remains in good condition, it ensures the performance required for detection, improving the accuracy and reliability of test results and providing stronger support for testing.

[0050] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. An immunochromatographic test kit, characterized by, include: The bottom shell has a receiving groove at its top for holding reagent paper; the side wall of the bottom shell has a sliding groove, and the bottom wall of the receiving groove has a through hole that communicates with the sliding groove. The upper cover is hinged to the bottom shell; the lower surface of the upper cover is provided with a buckle, and when the upper cover is closed on the top of the bottom shell, the buckle passes through the through hole into the sliding groove; A locking block is slidably connected to the slide groove; the side wall of the locking block is provided with a slot along the sliding direction of the locking block, and pushing the locking block causes the slot to engage or disengage with a buckle passing through the slide groove.

2. The immunochromatographic test kit according to claim 1, characterized by The buckle has a protruding hook part at one end near the top cover. The height of the slot is greater than the height of the hook part. When the hook part is inserted into the sliding groove, the locking block slides to move the slot until the hook part engages or disengages with the hook part.

3. The immunochromatographic test kit according to claim 1, characterized by, The receiving groove is provided with a number of limiting protrusions, which together form a limiting area for attaching reagent paper; the through hole is located outside the limiting area.

4. The immunochromatographic test kit according to claim 3, characterized by The through hole is located in the limiting area on the side away from the hinge between the bottom shell and the top cover.

5. The immunochromatographic test kit according to claim 1, characterized by, The number of the latches and the through holes is at least two, all the latches are linearly distributed along the sliding direction of the locking block, and the through holes are set corresponding to the latches.

6. The immunochromatographic test kit according to claim 1, characterized by The bottom shell has a diaphragm at its edge, and the top cover is connected to the side of the diaphragm away from the bottom shell.

7. The immunochromatographic reagent kit according to claim 6, characterized in that, The bottom shell, the diaphragm, and the top cover are integrally injection molded structures.

8. The immunochromatographic reagent kit according to claim 1, characterized in that, The sidewall of the slide is provided with a guide rail, and the locking block is provided with a guide groove, which is sleeved on the guide rail.

9. The immunochromatographic reagent kit according to claim 8, characterized in that, The depth of the guide groove gradually decreases from the end furthest from the opening of the slide groove to the end closest to the opening of the slide groove.

10. The immunochromatographic reagent kit according to any one of claims 1-9, characterized in that, The upper cover is provided with an observation port and a drip port, which are positioned directly opposite the receiving tank.

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