Detection structure and detection equipment

Abstract

The utility model relates to a detection structure and detection equipment, and relates to the technical field of detection. The detection structure comprises a main body and a cover body, the main body comprises a sampling cavity and a test paper cavity, the sampling cavity is used for placing a diluent, one end of the sampling cavity is provided with a first opening, and one end of the test paper cavity, which is the same as the first opening, is provided with a second opening; the cover body is provided with a transition cavity and covers the end, provided with the first opening and the second opening, of the main body, and the transition cavity is communicated with the first opening and the second opening at the same time. The detection accuracy of the swab sample can be improved.

Description

Technical Field

[0001] The present application relates to the field of detection technology, and in particular to a detection structure and detection equipment. Background Art

[0002] In the medical and experimental fields, swab testing technology is often needed. In related technologies, samples are usually collected from designated areas with a swab first, and then the swab containing the sample is placed in a sampling tube for elution and mixing. The diluent in the sampling tube is then dripped onto the test card, and the test is completed after a certain period of time. However, in this process, the operator's lack of experience often makes it impossible to effectively elute the sample on the swab, which greatly affects the test results. At the same time, the swab after sample collection and the diluent containing the eluted sample are at high risk of external biological contamination during transportation, which can also lead to inaccurate test results. Utility Model Content

[0003] Based on this, it is necessary to provide a detection structure and detection equipment to address the problem of inaccurate detection results in related technologies.

[0004] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0005] In a first aspect, an embodiment of the present application provides a detection structure, including:

[0006] A main body, the main body comprising a sampling cavity and a test paper cavity, the sampling cavity being used to place a diluent and having a first opening at one end, and the test paper cavity having a second opening at the same end as the first opening;

[0007] A cover body is provided with a transition cavity, and is covered on one end of the main body provided with the first opening and the second opening, and the transition cavity is communicated with the first opening and the second opening at the same time, so that after the detection structure is inverted, the diluent carries the sample into the test paper cavity through the sampling cavity, and the test result of the sample is obtained through the test paper in the test paper cavity.

[0008] In one embodiment of the first aspect, the inner wall surface of the sampling cavity is provided with concave-convex patterns, and the concave-convex patterns are used to rinse the sample on the swab;

[0009] The swab includes a sampling head, and the sampling head has a first state and a second state, the first state is a fluffy state of the sampling head, and the second state is a tightened state of the sampling head;

[0010] The inner diameter of the area in the sampling cavity where the concave-convex patterns are provided is smaller than the outer diameter of the sampling head in the first state, and is larger than the outer diameter of the sampling head in the second state.

[0011] In one embodiment of the first aspect, the detection structure further includes a sealing member, which is a sealing cover. The sealing cover has an external thread on its circumference, and an internal thread is provided on the inner side of the first opening of the sampling cavity. The sealing cover is threadedly connected to the sampling cavity.

[0012] In one embodiment of the first aspect, a boss is provided on one side of the main body located at the first opening, and the boss is distributed around the sampling cavity;

[0013] An annular groove is provided on the inner side of the sealing cover, and the annular groove is plug-fitted with the boss, and a sealing ring is provided inside, and the sealing ring contacts the inner wall surface of the annular groove and the boss respectively.

[0014] In one embodiment of the first aspect, the detection structure further includes a sealing member, which is a sealing aluminum film, and the sealing aluminum film seals and covers the first opening of the sampling cavity.

[0015] In one embodiment of the first aspect, the main body further includes an observation window, and the observation window is disposed on one side of the test paper cavity.

[0016] In one embodiment of the first aspect, one end of the test paper cavity where the second opening is provided is protruding relative to the sampling cavity.

[0017] In one embodiment of the first aspect, the detection structure further includes a test paper holder, which is installed in the test paper cavity, and the test paper holder is provided with a card slot, and the card slot is provided with a liquid channel at one end close to the second opening, and the liquid channel is connected to the transition cavity.

[0018] In one embodiment of the first aspect, a guide slope is provided on the inner side of the cover body, and the guide slope is used to guide the diluent in the sampling cavity to flow toward the test paper cavity.

[0019] In a second aspect, an embodiment of the present application provides a detection device, comprising the detection structure and test strip described in any one of the above embodiments, wherein the test strip is inserted into the test paper cavity to obtain the detection result of the sample in the test paper cavity.

[0020] Compared with the related art, the beneficial effects of the present application are as follows: the present application provides a detection structure and a detection device that can be used for in vitro swab detection. The detection structure includes a main body and a cover body, wherein the main body includes a sampling cavity and a test paper cavity, the sampling cavity is used to place a diluent, and the cover body is provided at the end of the main body and connects the sampling cavity and the test paper cavity. In this way, during use, after the swab collects the sample, it is inserted into the sampling cavity to fully mix the sample with the diluent. Then the cover body is covered, the main body is inverted, and the diluent flows from the sampling cavity to the transition cavity and the test paper cavity in turn, and is absorbed by the test strip placed in the test paper cavity to obtain the test result. The process of the present application is simple to operate, and can fully elute the sample on the swab, thereby improving the detection accuracy. At the same time, the detection process is carried out inside the main body, which reduces the diluent transportation process, reduces the risk of biological contamination, and further improves the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the axonometric structure of the detection structure in some embodiments of the present application;

[0023] Figure 2 Schematic diagram of the cross-sectional structure of the detection structure in some embodiments of the present application;

[0024] Figure 3 This is a schematic structural diagram of the main body in some embodiments of the present application;

[0025] Figure 4 This is a schematic structural diagram of the cover body in some embodiments of the present application;

[0026] Figure 5 This is a schematic structural diagram of a sealing cover in some embodiments of the present application;

[0027] Figure 6 for Figure 2 The enlarged structural diagram of part A is shown;

[0028] Figure 7 This is a schematic structural diagram of a test paper holder in some embodiments of the present application;

[0029] Figure 8 This is a schematic diagram of the structure of the detection device in some embodiments of the present application;

[0030] Figure 9 This is a schematic diagram of the structure of the test strips in some embodiments of the present application;

[0031] Figure 10 This is a schematic diagram of the structure of the swab in some embodiments of the present application.

[0032] Description of reference numerals:

[0033] 1000. Testing equipment;

[0034] 100. Detection structure; 110. Main body; 111. Sampling cavity; 1111. First opening; 112. Test paper cavity; 1121. Second opening; 113. Concave and convex pattern; 114. Observation window; 115. Boss; 120. Cover; 121. Transition cavity; 122. Guide slope; 130. Sealing cover; 131. Annular groove; 132. Sealing ring; 140. Test paper holder; 141. Card slot; 142. Liquid channel;

[0035] 200, test strip; 210, absorption pad; 220, nitrocellulose membrane; 230, quality control line; 240, test line; 250, coupling pad; 260, sample pad;

[0036] 300, swab; 310, sampling head; 320, connecting rod; 330, foldable part. DETAILED DESCRIPTION

[0037] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0038] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0039] In addition, if the term "and / or" appears, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated with each other are in an "or" relationship. If the terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0041] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0043] The embodiments of the present application provide a detection structure 100, which can be used to detect an in vitro swab 300. The detection scope includes chemical substances, organic compounds, inorganic compounds, metabolites, drugs, drug metabolites, organic tissues, metabolites of organic tissues, nucleic acids, proteins, polymers, etc., which are not limited here.

[0044] See Figure 1 and Figure 2 As shown, the detection structure 100 includes a main body 110 and a cover 120 covering the main body 110 . The main body 110 includes a sampling cavity 111 and a test paper cavity 112 .

[0045] Please also refer to Figure 3 The sampling cavity 111 is used to place the diluent, and one end is provided with a first opening 1111, carrying a swab 300 (such as Figure 10 ) extends into the sampling cavity 111 through the first opening 1111, thereby inserting the swab 300 (as shown) Figure 10 The sample on the test paper cavity 112 is rinsed and mixed in the diluent. The second opening 1121 is provided at the same end as the first opening 1111, so that the test paper strip 200 (as shown) can be Figure 9 As shown) is placed in the test paper cavity 112 through the second opening 1121, so as to facilitate the subsequent detection of the sample through the test strip 200.

[0046] Furthermore, the cover 120 is mounted on one end of the main body 110, covering the first opening 1111 and the second opening 1121. A transition cavity 121 is defined within the cover 120. When the cover 120 is mounted on the main body 110, the first opening 1111 and the second opening 1121 are connected through the transition cavity 121. When the detection structure 100 is inverted, the diluent carrying the sample enters the test paper cavity 112 through the sampling cavity 111, and the test result of the sample is obtained through the test paper in the test paper cavity 112.

[0047] It is understandable that in order to prevent the diluent from leaking from the connection between the cover body 120 and the main body 110 during the inversion process of the main body 110, the connection between the cover body 120 and the main body 110 should be sealed. The connection method can be thread locking or interference fit socket connection, which is not limited here.

[0048] For example, during use, the swab 300 (e.g. Figure 10 After the sample is inserted into the sampling cavity 111 and rinsed within the sampling cavity 111, the operator can close the cover 120 and place the main body 110 upside down. At this time, the diluent mixed with the sample flows from the first opening 1111 to the transition cavity 121 of the cover 120, and then flows into the test paper cavity 112 through the second opening 1121, so that the test strip 200 inserted in the test paper cavity 112 can detect the sample result.

[0049] Specifically, the main body 110 can be a shell structure with a cavity therein, and the sampling cavity 111 is provided in the middle of the main body 110 and extends longitudinally along the length of the main body 110. The sampling cavity 111 can be formed by digging a hole in the main body 110, or by installing a tube body of a test tube structure in the main body 110, which is not limited here.

[0050] Specifically, the main body 110 can be provided in an integrated configuration, i.e., a cavity is provided on one side of the main body 110 to form the test paper cavity 112; the main body 110 can also be provided in a split structure, i.e., an external housing is attached to one side of the main body 110 to form the test paper cavity 112. The test paper cavity 112 is provided on one side of the sampling cavity 111 and also extends longitudinally along the direction of the main body 110.

[0051] In one embodiment, the test paper cavity 112 is provided with a second opening 1121 at one end thereof protruding relative to the sampling cavity 111, so that when the main body 110 is inverted, there is a certain height difference between the test paper cavity 112 and the sampling cavity 111, ensuring that the diluent can effectively flow to the test strip 200 after flowing out of the sampling cavity 111 through the transition cavity 121.

[0052] Please continue reading Figure 3 In some embodiments, the inner wall surface of the sampling cavity 111 away from the first opening 1111 is provided with a concave-convex pattern 113 so that when the swab 300 (such as Figure 10 When the swab 300 (as shown) is rinsed in the diluent, Figure 10 The sampling head 310 (as shown) can rub against the concave and convex patterns 113 to maximize the mixing of the sample in the diluent. Specifically, the concave and convex patterns 113 can be a spiral thread structure or an annular ridge structure, and the number of spiral turns of the thread structure and the length of the structure are not limited. In order to meet the elution requirements of different types of samples, in some embodiments, the spiral thread structure on the inner wall of the sampling chamber 111 can also be changed to a partially regular or irregular protrusion or a conical inner wall surface to fully increase the contact area between the swab and the wall of the sampling chamber 111, so as to increase the swab 300 (as shown) Figure 10 The friction between the sampling head 310 and the wall of the sampling chamber 111 is used to fully rinse the sample.

[0053] In some embodiments, the sampling head 310 of the swab 300 is a fluffy cotton layer, and the sampling head 310 has a fluffy first state and a tightened second state. The inner diameter of the area of the sampling cavity 111 where the concave-convex pattern 113 is provided is smaller than the outer diameter of the sampling head 310 in the first state, and larger than the outer diameter of the sampling head 310 in the second state.

[0054] For example, the inner diameter of the sampling cavity 111 gradually decreases from one side of the first opening 1111 toward the bottom, facilitating the entry of the swab 300 while also facilitating the rinsing of the sampling head 310 on the swab 300. Specifically, as the sampling head 310 passes through the concave-convex grooves 113, the sampling head 310 moves up and down within the constraints of the concave-convex grooves 113, switching between a fluffy and a tightened state, thereby squeezing the cotton layer and rinsing the sample into the diluent.

[0055] In some embodiments, the main body 110 further includes an observation window 114, which is disposed on a side of the test paper cavity 112 away from the sampling cavity 111. For example, the observation window 114 can be made of a transparent material, such as glass, plastic film, etc., so that an operator can observe the test results of the test strip 200 through the observation window 114.

[0056] See Figure 4 As shown, in some embodiments, a guiding slope 122 is provided on the inner side of the cover 120 , and the guiding slope 122 is used to guide the diluent in the sampling cavity 111 to flow toward the test paper cavity 112 .

[0057] For example, three inner sides of the cover 120 may be provided with guiding slopes 122. When the cover 120 is in an inverted state, the bottom surface of the cover 120 located on the sampling cavity 111 side is higher than the bottom surface of the cover 120 located on the test paper cavity 112 side. Thus, during the flow of the diluent, the diluent is guided by the three guiding slopes 122 and flows toward the test paper cavity 112.

[0058] In some embodiments, the detection structure 100 further includes a seal disposed at the first opening 1111 of the sampling chamber 111 and sealing the sampling chamber 111. The seal facilitates the preservation of the diluent. During routine storage, the seal seals the diluent within the sampling chamber 111, preventing leakage in the event of collision or inversion. When performing a swab 300 test, the seal is simply removed and the swab 300 inserted.

[0059] See Figure 5 As shown, in some embodiments, the sealing member is a sealing cap 130. The sealing cap 130 has an external thread on its circumference, and an internal thread is provided inside the first opening 1111 of the sampling chamber 111. The sealing cap 130 is threadably engaged with the sampling chamber 111. The sealing cap 130 is detachably connected to the main body 110 through the threaded engagement. When not in use, the sealing cap 130 seals the sampling chamber 111 to prevent leakage of the diluent.

[0060] See Figure 6As shown, in some embodiments, the main body 110 is provided with a boss 115 on one side of the first opening 1111. The bosses 115 are distributed around the sampling cavity 111. The sealing cover 130 is provided with an annular groove 131 on its inner side. The annular groove 131 is plugged into the boss 115 and a sealing ring 132 is provided inside. The sealing ring 132 contacts the inner wall of the annular groove 131 and the boss 115 respectively.

[0061] Illustratively, a threaded post is provided in the middle of the sealing cover 130 for threaded connection with the main body 110, and an annular groove 131 is defined along the circumference of the threaded post. As the annular groove 131 engages with the boss 115, the sealing ring 132 is pressed tightly against the boss 115 within the annular groove 131, further enhancing the sealing effect between the sealing cover 130 and the sampling chamber 111.

[0062] In other embodiments, the sealing member is a sealing aluminum film that seals and covers the first opening 1111 of the sampling cavity 111. The sealing aluminum film is laid on the first opening 1111 and can be torn off the main body 110 under external force to seal and open the sampling cavity 111.

[0063] In some embodiments, the seal can be punctured by an auxiliary accessory and the swab 300 can be placed into the puncture; in other embodiments, the sampling process can be achieved by a non-swab sampling rod device, the end of which can have a sharp tip, which can directly puncture the seal and enter the sampling cavity 111 after sampling.

[0064] In some other embodiments, the sealing member may also be a bottle stopper structure, and the sealing of the sampling chamber 111 is achieved by inserting the sealing member into the first opening 1111 of the sampling chamber 111 .

[0065] See Figure 7 As shown, in some embodiments, the detection structure 100 also includes a test paper holder 140, which is installed in the test paper cavity 112, and the test paper holder 140 is provided with a card slot 141, and the card slot 141 is provided with a liquid channel 142 at one end close to the second opening 1121, and the liquid channel 142 is connected to the transition cavity 121.

[0066] For example, the test strip holder 140 can be a separate structure, or it can be integrated into the test strip cavity 112 according to the required function as part of the overall structure of the main body 110. After the test strip 200 is installed in the slot 141 of the test strip holder 140, the test strip holder 140 allows the test strip 200 to be closely attached to the wall of the test strip cavity 112, thereby being closer to the observation window 114, which is more conducive to observing the test results. The test strip holder 140 completely separates the test strip 200 from the outside of the test strip cavity 112, leaving only the liquid channel 142 for liquid to pass through during testing, thereby fixing the test strip 200 and preserving the specific raw materials on the test strip 200.

[0067] In other embodiments, the groove on the test paper holder 140 can be made slightly shorter than the test paper strip 200, so that the test paper strip 200 slightly protrudes from the test paper cavity 112, so that the test paper strip 200 directly contacts the diluent carrying the sample in the transition cavity 121, thereby absorbing the diluent for detection.

[0068] See Figure 8 As shown, an embodiment of the present application further provides a detection device 1000, which includes the detection structure 100 of any of the above embodiments and a test strip 200. The test strip 200 is installed in the test strip cavity 112, and the swab 300 is used to collect a sample. The swab 300 with the sample is inserted into the sampling cavity 111 through the first opening 1111, thereby rinsing the sample on the swab 300 and mixing it with the diluent.

[0069] This embodiment has the detection structure 100 in any of the above embodiments, and therefore has all the beneficial effects of the detection structure 100 in any of the above embodiments, which will not be described in detail here.

[0070] See also Figure 9 As shown, the test strip 200 includes a quality control line 230 and a detection line 240 , and both the quality control line 230 and the detection line 240 are exposed to the observation window 114 , so that the operator can directly observe the test results.

[0071] The test strip 200 can be in various forms, and can use detection methods such as colloidal gold method, immunofluorescence method, latex microsphere method or dry chemical method. In this embodiment, the test strip 200 can be a colloidal gold method test paper.

[0072] Specifically, the test strip 200 also includes an absorption pad 210, a nitrocellulose membrane 220, a coupling pad 250, and a sample pad 260. If the sample collected by the sampling head 310 contains a substance to be tested, the substance to be tested is mixed with the diluent, and then passes through the sample pad 260 and the coupling pad 250 in sequence with the diluent, and forms a colloidal gold complex with the colloidal gold coupling substance on the coupling pad 250. The colloidal gold complex continues to chromatograph with the diluent, and when it passes through the detection line 240 on the nitrocellulose membrane 220, it is combined with the specific raw material coated thereon to form a color-developing strip. The excess liquid will be absorbed by the absorption pad 210, thereby completing the detection process.

[0073] Continue reading Figure 10As shown, the swab 300 also includes a connecting rod 320 connected to the sampling head 310. An easily breakable portion 330 is provided on one end of the connecting rod 320 away from the sampling head 310. The easily breakable portion 330 can be broken under the action of an external force, so that after the sampling is completed and the swab 300 is placed in the sampling cavity 111 and rinsed thoroughly with the diluent, the connecting rod 320 can be broken through the easily breakable portion 330 to ensure that the sampling head 310 remains in the sampling cavity 111 and the sample on the swab 300 is fully extracted.

[0074] In summary, the detection structure 100 and the detection device 1000 provided in the present application integrate the sampling cavity 111 and the test paper cavity 112 in an integrated manner, making the detection process more intuitive and convenient. First, the detection structure 100 is internally designed so that the sample detection can be carried out according to a standardized detection process that can be easily achieved, reducing the dependence on the operator's skills and experience, and greatly improving the accuracy and credibility of the test results. Secondly, the sealing characteristics of the detection structure 100 keep all substances containing biosafety risks within the detection structure 100, reducing pollution to the environment and personnel. Finally, the detection structure 100 is simple to operate and the results are intuitive, so that the detection reagents used in professional scenarios can be well used in home environments, promoting in vitro detection products to enter the home market.

[0075] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A detection structure, characterized in that: include: A main body, the main body comprising a sampling cavity and a test paper cavity, the sampling cavity being used to place a diluent and having a first opening at one end, and the test paper cavity having a second opening at the same end as the first opening; A cover body is provided with a transition cavity, and is covered on one end of the main body provided with the first opening and the second opening, and the transition cavity is communicated with the first opening and the second opening at the same time, so that after the detection structure is inverted, the diluent carries the sample into the test paper cavity through the sampling cavity, and the test result of the sample is obtained through the test paper in the test paper cavity.

2. The detection structure according to claim 1, characterized in that: The inner wall surface of the sampling cavity is provided with concave and convex patterns, and the concave and convex patterns are used to rinse the sample on the swab; The swab includes a sampling head, and the sampling head has a first state and a second state, the first state is a fluffy state of the sampling head, and the second state is a tightened state of the sampling head; The inner diameter of the area in the sampling cavity where the concave-convex patterns are provided is smaller than the outer diameter of the sampling head in the first state, and is larger than the outer diameter of the sampling head in the second state.

3. The detection structure according to claim 1, characterized in that: The detection structure further includes a sealing member, which is a sealing cover. The peripheral side of the sealing cover is provided with an external thread, the inner side of the first opening of the sampling cavity is provided with an internal thread, and the sealing cover is threadedly connected to the sampling cavity.

4. The detection structure according to claim 3, characterized in that: The main body is provided with a boss on one side of the first opening, and the boss is distributed around the sampling cavity; An annular groove is provided on the inner side of the sealing cover, and the annular groove is plug-fitted with the boss, and a sealing ring is provided inside, and the sealing ring contacts the inner wall surface of the annular groove and the boss respectively.

5. The detection structure according to claim 1, characterized in that: The detection structure further includes a sealing member, which is a sealing aluminum film. The sealing aluminum film seals and covers the first opening of the sampling cavity.

6. The detection structure according to claim 1, characterized in that: The main body further includes an observation window, which is arranged on one side of the test paper cavity.

7. The detection structure according to claim 1, characterized in that: One end of the test paper cavity provided with the second opening protrudes relative to the sampling cavity.

8. The detection structure according to claim 1, characterized in that: The detection structure further includes a test paper holder, which is installed in the test paper cavity and has a card slot. An end of the card slot close to the second opening is provided with a liquid channel, and the liquid channel is connected to the transition cavity.

9. The detection structure according to any one of claims 1 to 8, characterized in that: A guide slope is provided on the inner side of the cover body, and the guide slope is used to guide the diluent in the sampling cavity to flow toward the test paper cavity.

10. A detection device, characterized in that: It comprises the detection structure and test strip according to any one of claims 1 to 9, wherein the test strip is inserted into the test paper cavity to obtain the detection result of the sample in the test paper cavity.

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