Multi-target detachable combined immunochromatography rapid detection test card structure

Abstract

The utility model discloses a multi-target detachable combined immunochromatography rapid detection test card structure, and particularly relates to the technical field of detection test cards, the multi-target detachable combined immunochromatography rapid detection test card structure comprises a plurality of detection cards and a fixing assembly, the plurality of detection cards are stacked up and down, each detection card comprises a lower shell and an upper shell, and the fixing assembly comprises a pressing plate and a lower plate. A liquid injection pipe is fixedly connected to the interior of the upper shell, a diaphragm is fixedly connected to the interior of the liquid injection pipe, a liquid guide pipe is fixedly connected to the exterior of the liquid injection pipe, an observation opening is formed in the top of the upper shell, test paper is placed in the lower shell, and a mounting opening is formed in the lower shell; the liquid injection pipe located at the top is movably sleeved with the pressing plate, a threaded rod is rotationally connected into the pressing plate, a threaded sleeve is fixedly connected to the top of the lower plate, and a plugging cover is fixedly connected to the top of the lower plate. According to the utility model, liquid to be detected is injected into each liquid injection tube, so that the states of a plurality of pieces of test paper can be observed at the same time, the detection efficiency is improved, and unknown pathogens can be quickly screened.

Description

Technical Field

[0001] The utility model relates to the technical field of test cards, and more specifically, the utility model relates to a multi-target detachable combined immunochromatographic rapid test card structure. Background Technique

[0002] Currently, test cards based on the immunochromatographic principle include colloidal gold immunochromatography, fluorescence immunochromatography, etc. The principle is the specific binding of antigen and antibody, and then visual judgment is carried out according to the color development. It has the advantages of low price, simple operation, small sample volume, and easy to carry.

[0003] However, most of the existing immunochromatographic test cards are single-target or limited to 2-3 targets on one test strip. In the face of sudden epidemics and a large number of samples, traditional test cards need to be operated frequently and repeatedly, and the detection efficiency is relatively low. Content of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a multi-target detachable combined immunochromatographic rapid test card structure. The technical problem to be solved by the present invention is that the detection efficiency of the existing test cards is too low.

[0005] To achieve the above object, the utility model provides the following technical solution: A multi-target detachable combined immunochromatographic rapid test card structure, including a plurality of test cards and a fixing component, and the plurality of test cards are stacked up and down. The test card includes a lower shell and an upper shell. The fixing component includes a pressing plate and a lower plate. It is characterized in that: a liquid injection tube is fixedly connected inside the upper shell, a liquid guiding tube is fixedly connected to the outside of the liquid injection tube, a diaphragm is fixedly connected inside the liquid injection tube, an observation port is opened at the top of the upper shell, a test paper is placed inside the lower shell, an installation port is opened inside the lower shell, and the liquid injection tube is movably sleeved inside the installation port;

[0006] The pressing plate is movably sleeved on the outside of the liquid injection tube at the top. A screw rod is rotatably connected inside the pressing plate. A threaded sleeve is fixedly connected to the top of the lower plate, and the screw rod is threadedly sleeved inside the threaded sleeve. A knob is fixedly connected to the top of the screw rod. A sealing cover is fixedly connected to the top of the lower plate, and the liquid injection tube at the bottom is inserted into the sealing cover.

[0007] Such as Figures 1-4As shown, the specific implementation method is as follows: By placing multiple test strips into the interiors of multiple lower shells respectively, and then buckling multiple upper shells on the tops of multiple lower shells respectively to form multiple test cards. After that, stack multiple test cards so that multiple liquid guide tubes are connected end to end. Then, place multiple test cards between a pressing plate and a sealing cover, such that the liquid guide tube at the top is movably sleeved inside the pressing plate, and at the same time, the liquid guide tube at the bottom is movably inserted into the sealing cover. Then, spread multiple test cards in a fan shape. Subsequently, rotate the knob to drive the screw to rotate inside the threaded sleeve, so that the pressing plate and the lower plate can clamp multiple test cards. Then, inject the liquid to be detected into the injection tube at the top. Then, the detection liquid is respectively injected onto the tops of the corresponding test strips along multiple liquid guide tubes. Subsequently, the states of multiple test strips can be observed simultaneously through the observation port, so that different detections can be completed simultaneously, improving the detection efficiency.

[0008] In a preferred embodiment, a limiting frame is fixedly connected inside the lower shell, and the test strip is located inside the limiting frame.

[0009] The test strip can be limited by the provided limiting frame to prevent the test strip from shifting.

[0010] In a preferred embodiment, a pressing frame is fixedly connected inside the upper shell, and the test strip is located at the bottom of the pressing frame.

[0011] The test strip can be further fixed by the provided pressing frame.

[0012] In a preferred embodiment, a fixing column is fixedly connected inside the lower shell, a through hole is opened inside the upper shell, a fixing screw is rotatably connected inside the through hole, and the fixing screw is threadedly sleeved inside the fixing column.

[0013] The lower shell and the upper shell can be fixed by the provided fixing screw, and at the same time, the lower shell and the upper shell can be conveniently disassembled, so that the test strip can be conveniently replaced.

[0014] In a preferred embodiment, a sealing ring is fixedly connected to the top of the injection tube, and a sealing gasket is fixedly connected inside the sealing cover.

[0015] The leakage of the liquid to be detected can be avoided by the provided sealing ring and sealing gasket.

[0016] The technical effects and advantages of the present utility model:

[0017] By separately placing multiple test strips inside multiple lower housings, then respectively snapping multiple upper housings onto the tops of the multiple lower housings to form multiple test cards, stacking the multiple test cards, making the multiple liquid guide tubes connected end to end, then placing the multiple test cards between a pressing plate and a sealing cover, such that the liquid guide tube at the top is movably sleeved inside the pressing plate, and at the same time, the liquid guide tube at the bottom is movably inserted inside the sealing cover, then spreading the multiple test cards in a fan shape, and then rotating the knob to drive the screw to rotate inside the threaded sleeve, thereby enabling the pressing plate and the lower plate to clamp the multiple test cards. Subsequently, use a liquid transfer device to aspirate a quantitative amount of the liquid to be detected, then puncture the corresponding diaphragms in sequence, inject the quantitative liquid to be detected into the corresponding liquid injection tubes, and then the detection liquid is respectively injected onto the tops of the corresponding test strips along the corresponding liquid guide tubes. Subsequently, the states of the multiple test strips can be observed simultaneously through the observation ports, improving the detection efficiency and achieving rapid screening of unknown pathogens. Description of the Drawings

[0018] Figure 1 Schematic diagram of the unfolded state of multiple test cards of the present utility model.

[0019] Figure 2 Exploded structural schematic diagram of the test card of the present utility model.

[0020] Figure 3 Cross-sectional structural schematic diagram of the test card of the present utility model.

[0021] Figure 4 Schematic diagram of the structure of the fixing component of the present utility model.

[0022] Reference numerals are: 1, lower housing; 2, upper housing; 3, liquid injection tube; 4, liquid guide tube; 5, sealing ring; 6, observation port; 7, limiting frame; 8, test strip; 9, installation opening; 10, fixing column; 11, fixing screw; 12, pressing frame; 13, lower plate; 14, sealing cover; 15, sealing gasket; 16, threaded sleeve; 17, screw; 18, pressing plate; 19, knob; 20, through hole; 21, diaphragm. Detailed Embodiments

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] The utility model provides a multi-target detachable combined immunochromatographic rapid detection test card structure, which includes a plurality of detection test cards and a fixing component, and the plurality of detection test cards are stacked up and down. The detection test card includes a lower shell 1 and an upper shell 2. The fixing component includes a pressing plate 18 and a lower plate 13. It is characterized in that: a liquid injection tube 3 is fixedly connected inside the upper shell 2, a liquid guiding tube 4 is fixedly connected to the outside of the liquid injection tube 3, a diaphragm 21 is fixedly connected inside the liquid injection tube 3, an observation port 6 is opened at the top of the upper shell 2, a test strip 8 is placed inside the lower shell 1, an installation port 9 is opened inside the lower shell 1, and the liquid injection tube 3 is movably sleeved inside the installation port 9;

[0025] The pressing plate 18 is movably sleeved on the outside of the liquid injection tube 3 at the top. A screw rod 17 is rotatably connected inside the pressing plate 18. A threaded sleeve 16 is fixedly connected to the top of the lower plate 13, and the screw rod 17 is threadedly sleeved inside the threaded sleeve 16. A knob 19 is fixedly connected to the top of the screw rod 17. A plugging cover 14 is fixedly connected to the top of the lower plate 13, and the liquid injection tube 3 at the bottom is inserted into the plugging cover 14.

[0026] As Figures 1-4 shown, the implementation method is specifically as follows: by respectively placing a plurality of test strips 8 into the interiors of a plurality of lower shells 1, then respectively buckling a plurality of upper shells 2 on the tops of a plurality of lower shells 1 to form a plurality of detection test cards, and then stacking the plurality of detection test cards so that the plurality of liquid guiding tubes 4 are connected end to end. Then, place the plurality of detection test cards between the pressing plate 18 and the plugging cover 14, so that the liquid guiding tube 4 at the top is movably sleeved inside the pressing plate 18. At the same time, the liquid guiding tube 4 at the bottom is movably inserted into the plugging cover 14. Then, fan out the plurality of detection test cards, and then rotate the knob 19 to drive the screw rod 17 to rotate inside the threaded sleeve 16, so that the pressing plate 18 and the lower plate 13 can clamp the plurality of detection test cards. Subsequently, use a pipetting device to suck a quantitative liquid to be detected, then pierce the corresponding diaphragms 21 in sequence, inject the quantitative liquid to be detected into the corresponding liquid injection tubes 3, and then the detection liquid is respectively injected onto the tops of the corresponding test strips 8 along the corresponding liquid guiding tubes 4. Then, the states of the plurality of test strips 8 can be observed simultaneously through the observation port 6, so that different detections can be completed simultaneously, improving the detection efficiency.

[0027] A limiting frame 7 is fixedly connected inside the lower shell 1, and the test strip 8 is located inside the limiting frame 7.

[0028] As Figures 2-3 shown, the implementation method is specifically as follows: the test strip 8 can be limited by the provided limiting frame 7 to prevent the test strip 8 from shifting.

[0029] A pressing frame 12 is fixedly connected inside the upper shell 2, and the test strip 8 is located at the bottom of the pressing frame 12.

[0030] As Figures 2-3 shown, the implementation manner is specifically as follows: The test strip 8 can be further fixed by the arranged pressing frame 12.

[0031] A fixing column 10 is fixedly connected inside the lower housing 1, a through hole 20 is formed inside the upper housing 2, a fixing screw 11 is rotatably connected inside the through hole 20, and the fixing screw 11 is threadedly sleeved inside the fixing column 10.

[0032] As Figures 1-3 shown, the implementation manner is specifically as follows: The lower housing 1 and the upper housing 2 can be fixed by the arranged fixing screw 11, and at the same time, the lower housing 1 and the upper housing 2 can be conveniently disassembled, so that the test strip 8 can be conveniently replaced.

[0033] A sealing ring 5 is fixedly connected to the top of the liquid injection tube 3, and a sealing gasket 15 is fixedly connected inside the plugging cover 14.

[0034] As Figures 1-3 shown, the implementation manner is specifically as follows: The arranged sealing ring 5 and sealing gasket 15 can prevent the liquid to be detected from leaking.

[0035] The diaphragm 21 is inclined, and the lower end of the diaphragm 21 is flush with the lower edge of the interface between the liquid guiding tube 4 and the liquid injection tube 3.

[0036] As Figure 3 shown, the implementation manner is specifically as follows: The inclined diaphragm 21 can enable the liquid to be detected to smoothly flow into the liquid guiding tube 4.

[0037] The liquid injection tube 3 is made of transparent plastic.

[0038] As Figures 1-3 shown, the implementation manner is specifically as follows: Through the transparent liquid injection tube 3, the operator can conveniently observe the liquid inflow state and the penetration depth of the liquid transfer device.

[0039] The working principle of the present utility model:

[0040] When it is necessary to detect a liquid, multiple test strips 8 are respectively placed inside multiple lower housings 1, and then multiple upper housings 2 are respectively buckled on the tops of the multiple lower housings 1 to form multiple test cards. Then, the multiple test cards are stacked so that the multiple liquid guide tubes 4 are connected end to end. Then, the multiple test cards are placed between a pressing plate 18 and a sealing cover 14, so that the liquid guide tube 4 at the top is movably sleeved inside the pressing plate 18. At the same time, the liquid guide tube 4 at the bottom is movably inserted inside the sealing cover 14. Then, the multiple test cards are unfolded in a fan shape. Subsequently, the knob 19 is rotated to drive the screw rod 17 to rotate inside the threaded sleeve 16, so that the pressing plate 18 and the lower plate 13 can clamp the multiple test cards. Subsequently, a pipetting device is used to suck a quantitative liquid to be detected, and then the corresponding diaphragms 21 are successively punctured, and the quantitative liquid to be detected is injected into the corresponding liquid injection tube 3. Then, the detection liquid is respectively injected into the tops of the corresponding test strips 8 along the corresponding liquid guide tubes 4. Subsequently, the states of the multiple test strips 8 can be simultaneously observed through the observation port 6, so that different detections can be simultaneously completed, and the detection efficiency can be improved.

[0041] Finally, the following points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object to be described changes, the relative position relationship may change;

[0042] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0043] Finally: The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A multi-target detachable combined immunochromatographic rapid test card structure, comprising a plurality of test cards and a fixing assembly, wherein the plurality of test cards are stacked up and down, the test card comprising a lower shell (1) and an upper shell (2), the fixing assembly comprising a pressing plate (18) and a lower plate (13), characterized in that: The interior of the upper shell (2) is fixedly connected to a liquid injection tube (3), the exterior of the liquid injection tube (3) is fixedly connected to a liquid guide tube (4), the interior of the liquid injection tube (3) is fixedly connected to a diaphragm (21), the top of the upper shell (2) is provided with an observation port (6), the interior of the lower shell (1) is provided with a test paper (8), the interior of the lower shell (1) is provided with a mounting port (9), and the liquid injection tube (3) is movably sleeved inside the mounting port (9); The pressure plate (18) is movably connected to the outside of the injection tube (3) located at the top, and the inside of the pressure plate (18) is rotatably connected to a screw rod (17). The top of the lower plate (13) is fixedly connected to a threaded sleeve (16), and the screw rod (17) is threadedly connected to the inside of the threaded sleeve (16). The top of the screw rod (17) is fixedly connected to a knob (19). The top of the lower plate (13) is fixedly connected to a sealing cover (14), and the injection tube (3) located at the bottom is inserted into the inside of the sealing cover (14).

2. The multi-target detachable combined immunochromatographic rapid detection test card structure according to claim 1, characterized in that: The interior of the lower housing (1) is fixedly connected to a limiting frame (7), and the test paper (8) is located inside the limiting frame (7).

3. The multi-target detachable combined immunochromatographic rapid detection test card structure according to claim 1, characterized in that: A pressing frame (12) is fixedly connected to the interior of the upper shell (2), and the test paper (8) is located at the bottom of the pressing frame (12).

4. The multi-target detachable combined immunochromatographic rapid detection test card structure according to claim 1, characterized in that: The interior of the lower shell (1) is fixedly connected with a fixing column (10), the interior of the upper shell (2) is provided with a through hole (20), the interior of the through hole (20) is rotatably connected with a fixing screw (11), and the fixing screw (11) is threadedly sleeved on the interior of the fixing column (10).

5. The multi-target detachable combined immunochromatographic rapid detection test card structure according to claim 1, characterized in that: A sealing ring (5) is fixedly connected to the top of the liquid injection tube (3), and a sealing gasket (15) is fixedly connected to the inside of the blocking cover (14).

6. The multi-target detachable combined immunochromatographic rapid detection test card structure according to claim 1, characterized in that: The diaphragm (21) is inclined, and the lower end of the diaphragm (21) is flush with the lower edge of the interface between the liquid guiding tube (4) and the liquid injection tube (3).

7. The multi-target detachable combined immunochromatographic rapid detection test card structure according to claim 1, characterized in that: The liquid injection tube (3) is made of transparent plastic.

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