Sealing plug and consumable assembly

Abstract

The utility model discloses a sealing plug and a consumable assembly, and the sealing plug is suitable for a consumable for nucleic acid extraction and comprises a plug body used for blocking an opening of a tube body of the consumable; the plurality of elastic connecting bodies extend upwards from the top of the plug body and are uniformly distributed on the top surface of the plug body at intervals in the circumferential direction, and a connecting cavity for allowing part of adapters to be inserted in is formed among the plurality of elastic connecting bodies; a protruding part used for being clamped into a limiting groove in the adapter is formed on the side wall, facing the connecting cavity, of the elastic connecting body. The sealing plug has the advantages of being simple in structure and capable of improving connection stability.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of sample detection, and particularly relates to a sealing plug and consumable assembly. BACKGROUND

[0002] Nucleic acid extraction in sample detection is a very important link in life science research, biotechnology application and genetic diagnosis. A kit (or reagent strip) is used to contain samples and reagents during nucleic acid extraction. Since harmful substances may exist in the samples and / or reagents, aerosols are easily generated during ultrasonic operation on the samples and reagents in the kit. If the aerosols containing harmful substances overflow into the atmosphere, the environment will be polluted. Therefore, a sealing plug is needed to seal the tube in the kit. However, the existing sealing plug has a poor connection stability when cooperating with an adapter (i.e., a sealing plug moving gun head) due to an unreasonable size and / or structure design, which makes it difficult for the adapter to take the sealing plug or the sealing plug to fall off during the moving process after being taken, thereby reducing the efficiency of ultrasonic operation and nucleic acid extraction operation. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to provide a sealing plug and consumable assembly, which has the advantages of simple structure and improved connection stability.

[0004] To achieve the above-mentioned purpose, the present application provides a sealing plug in the first aspect, which is suitable for nucleic acid extraction consumables and includes:

[0005] A plug body for plugging an opening of a tube of a consumable;

[0006] A plurality of elastic connecting bodies, each of which extends upward from the top of the plug body and is uniformly distributed on the top surface of the plug body in a circumferential direction, a connecting cavity for inserting part of the adapter is formed between the plurality of elastic connecting bodies, and a protruding part for being clamped into a limiting slot on the adapter is formed on the side wall of the elastic connecting body facing the connecting cavity.

[0007] In the embodiments of the present application, the number of elastic connecting bodies is not less than three.

[0008] In the embodiments of the present application, the material of the elastic connecting body is plastic.

[0009] In the embodiments of the present application, a first guide wall for guiding the adapter is further formed on the side of the elastic connecting body facing the connecting cavity.

[0010] In the embodiments of the present application, a second guide wall inclined downward is formed on the outer circumferential side of the plug body in the direction of the plug body radially inward, and a concave cavity recessed from bottom to top is formed on the plug body.

[0011] In the embodiments of the present application, the sealing plug further comprises a stop body arranged around the outer circumferential side of the plug body, a bottom of the stop body is formed with a stop surface for tightly combining with the top surface of the tube body, and a smooth circular arc transition is formed between the outer circumferential arm of the elastic connecting body and the top surface of the stop body.

[0012] The second aspect of the present application provides a consumable assembly, which comprises:

[0013] The consumable comprises a connecting plate body and a plurality of tube bodies arranged on the connecting plate body and arranged along the length direction of the connecting plate body; and

[0014] The sealing plug is used for sealing the tube body.

[0015] In the embodiments of the present application, the tube body comprises a containing section and a protruding section, the containing section is located below the connecting plate body, and the protruding section is arranged above the containing section and partially protrudes upward from the top surface of the connecting plate body.

[0016] In the embodiments of the present application, the consumable further comprises a reinforcing rib arranged below the connecting plate body and located between the outer circumferential walls of the adjacent two tube bodies.

[0017] In the embodiments of the present application, the connecting plate body, the plurality of tube bodies and the plurality of reinforcing ribs are integrally injection molded.

[0018] According to the above technical solution, the sealing plug is suitable for the consumable for nucleic acid extraction and comprises a plug body and a plurality of elastic connecting bodies, the plug body is used for plugging the opening of the tube body of the consumable, the plurality of elastic connecting bodies are uniformly distributed in the circumferential direction above the plug body and are uniformly distributed in the circumferential direction of the plug body, a connecting cavity for partially inserting an adapter is formed between the plurality of elastic connecting bodies, and a protruding portion for being clamped into a limiting groove on the adapter is formed on the side wall of the elastic connecting body facing the connecting cavity. The sealing plug has a simple structure, the plurality of elastic connecting bodies are uniformly distributed in the circumferential direction above the plug body and are uniformly distributed in the circumferential direction of the plug body, so that the elastic connecting body can be adaptively deflected when cooperating with the adapter, and then the protruding portion on the elastic connecting body can be clamped into the limiting groove on the adapter to realize the tight connection between the sealing plug and the adapter. The adapter can be more easily taken to the sealing plug or taken to the sealing plug, and the sealing plug will not easily fall during the moving process, which is beneficial to improving the efficiency of ultrasonic operation and nucleic acid extraction operation. In addition, the structural design of the sealing plug makes the adapter not cause structural damage to the sealing plug when connected with the sealing plug, so as to ensure that the sealing plug can be used repeatedly, which is beneficial to prolonging the service life of the sealing plug and improving the practicability of the sealing plug.

[0019] Other features and advantages of the embodiments of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of embodiments of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain them. Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. In the drawings:

[0021] Figure 1 A structure schematic diagram of the first perspective of the sealing plug in the embodiment of the application;

[0022] Figure 2 A structure schematic diagram of the second perspective of the sealing plug in the embodiment of the application;

[0023] Figure 3 A cross-sectional schematic diagram of the sealing plug in the embodiment of the application;

[0024] Figure 4 A structure schematic diagram of the consumable in the embodiment of the application;

[0025] Figure 5 A structure schematic diagram of the consumable assembly in the embodiment of the application.

[0026] Legend of reference signs

[0027] 1-sealing plug; 101-plug body; 102-elastic connecting body; 103-connecting cavity; 104-protruding part; 105-first guide wall; 106-second guide wall; 107-recessed cavity; 108-stop body; 109-stop surface; 2-consumable; 201-tube body; 2011-containing section; 2012-protruding section; 202-connecting plate body; 203-stiffening rib; 204-containing cavity. DETAILED DESCRIPTION

[0028] The specific embodiments of the application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the application, and are not intended to limit the application.

[0029] The embodiment of the application provides a novel sealing plug, as shown in the drawing, the sealing plug 1 is suitable for a consumable 2 for nucleic acid extraction and comprises: Figures 1-3

[0030] a plug body 101 for plugging an opening of a tube body 201 of the consumable 2;

[0031] ​Multiple elastic connectors 102 extend upward from the top of the plug 101 and are evenly distributed circumferentially on the top surface of the plug 101. A connecting cavity 103 for partial adapter insertion is formed between the multiple elastic connectors 102. A protrusion 104 for engaging with a limiting groove on the adapter is formed on the side wall of the elastic connector 102 facing the connecting cavity 103.

[0032] Specifically, in this embodiment, consumable 2 can be selected as a reagent kit (or reagent strip), such as... Figure 4 As shown, the consumable 2 includes a connecting plate 202 and multiple tubes 201. The multiple tubes 201 are all disposed on the connecting plate 202 and arranged along its length. Each tube 201 has an internal cavity 204 for accommodating samples and / or reagents. The outer peripheral wall of the plug 101 can tightly fit against the cavity wall of the cavity 204. In this embodiment, the sealing plug 1 can be moved via the adapter's connection end (i.e., the sealing plug 1 moves the nozzle). When the sample and / or reagent in the tube 201 needs to be sonicated, the plug 101 needs to be inserted downwards into the opening of the tube 201 to block the opening and prevent aerosols from overflowing from the tube 201 during sonication, thus ensuring the safety of the sonication operation.

[0033] Further, the two adjacent elastic connecting bodies 102 in the embodiment form a vertical gap, and the top end of the elastic connecting body 102 can be deflected relative to the bottom end (i.e., the end of the elastic connecting body 102 connected with the plug body 101). When the adapter needs to move the sealing plug 1, the part of the connecting end of the adapter (i.e., the sealing plug 1 moves the gun head) extends into the connecting cavity 103. In the process of the part of the connecting end of the adapter entering the connecting cavity 103, the top end of the elastic connecting body 102 is deflected relative to the bottom end of the elastic connecting body 102 under the outward pushing of the connecting end. As the connecting end continuously extends into the connecting cavity 103, the protruding part 104 on the elastic connecting body 102 is clamped into the limiting groove on the adapter, thereby realizing the connection between the sealing plug 1 and the adapter. The sealing plug 1 can be moved under the driving action of the adapter, for example, the adapter drives the sealing plug 1 to block the opening of the pipe body 201, or the adapter takes the sealing plug 1 from one pipe body 201, moves it to the opening of another pipe body 201, and blocks the opening. The sealing plug 1 in the embodiment has a simple structure, and the plurality of elastic connecting bodies 102 are uniformly distributed above the plug body 101 and along the circumferential direction of the plug body 101, so that the elastic connecting body 102 can be adaptively deflected when cooperating with the adapter, thereby enabling the protruding part 104 on the elastic connecting body 102 to be clamped into the limiting groove on the adapter to realize the tight connection between the sealing plug 1 and the adapter. The adapter can more easily take the sealing plug 1 or take the sealing plug 1, and the sealing plug 1 will not easily fall during the movement process, which is conducive to improving the efficiency of ultrasonic operation and nucleic acid extraction operation. In addition, the structure design of the sealing plug 1 in the embodiment enables the adapter to not cause structural damage to the sealing plug 1 when connected with the sealing plug 1, ensuring that the sealing plug 1 can be used repeatedly, which is conducive to prolonging the service life of the sealing plug 1 and improving the practicability of the sealing plug 1.

[0034] In an embodiment of the present application, the number of elastic connecting bodies 102 is not less than three. The above range of the number of elastic connecting bodies 102 can enable the protruding part 104 on a small number of elastic connecting bodies 102 (such as one elastic connecting body 102) to not be clamped into the corresponding limiting groove when the adapter is operated by mistake, without affecting the protruding parts 104 on other elastic connecting bodies 102 to be clamped into the corresponding limiting grooves. Further, the number of elastic connecting bodies 102 in the embodiment is preferably three. If the protruding part 104 on one elastic connecting body 102 is not clamped into the corresponding limiting groove due to the adapter operation mistake, and the protruding parts 104 on the other two elastic connecting bodies 102 are clamped into the corresponding limiting grooves, the sealing plug 1 and the adapter can still be tightly connected, and the connected sealing plug 1 will not tilt or deviate, so that the number of elastic connecting bodies 102 is not less than three, which further ensures the tightness and stability of the connection between the sealing plug 1 and the adapter.

[0035] In an embodiment of the present application, the elastic connecting body 102 is made of plastic material, which ensures that the elastic connecting body 102 has a certain elasticity, so that the elastic connecting body 102 can restore to the original state after a certain degree of deformation, that is, further ensures that the sealing plug 1 can be used multiple times and can be tightly connected with the connecting end of the adapter.

[0036] In an embodiment of the present application, the side of the elastic connecting body 102 facing the connecting cavity 103 is further formed with a first guide wall 105 for guiding the adapter. Specifically, the first guide wall 105 is formed at the top of the connecting cavity 103, and in the radial direction of the connecting cavity 103, the first guide wall 105 gradually inclines downward from outside to inside. The first guide wall 105 can guide the connecting end of the adapter when the connecting end of the adapter extends into the connecting cavity 103, thereby improving the convenience of connecting the connecting end of the adapter with the sealing plug 1.

[0037] In an embodiment of the present application, in the radial direction of the plug body 101, the outer circumferential side of the plug body 101 is formed with a second guide wall 106 that inclines downward. Specifically, the second guide wall 106 is arranged at the bottom end of the plug body 101, and in the radial direction of the plug body 101, the second guide wall 106 gradually inclines downward from outside to inside. If the consumable 2 is in a deviated state (i.e., the central axis of the tube body 201 is not on a vertical plane) after being placed on the consumable 2 carrier, when the adapter inserts the sealing plug 1 into the tube body 201, the second guide wall 106 can apply a pushing force to the cavity wall of the containing cavity 204, and the consumable 2 can be restored to a vertical state under the action of the above-mentioned pushing force, thereby enabling the sealing plug 1 to be smoothly inserted into the tube body 201.

[0038] In an embodiment of the present application, the plug body 101 is formed with a concave cavity 107 that is recessed from bottom to top. Compared with the plug body 101 without the concave cavity 107, the above-mentioned arrangement makes the containing space inside the tube body 201 larger after the sealing plug 1 blocks the tube body 201, which can further avoid the overflow of aerosol, is conducive to the lightweight design of the sealing plug 1, and can also save the manufacturing material.

[0039] In an embodiment of the present application, the sealing plug 1 further comprises a stop body 108 arranged around the outer circumferential side of the plug body 101, and the bottom of the stop body 108 is formed with a stop surface 109 for tightly combining with the top surface of the tube body 201. Specifically, the stop body 108 in the present embodiment is in the form of a circular ring, and the bottom surface of the stop body 108 is the stop surface 109. After the sealing plug 1 is covered on the tube body 201, the stop surface 109 tightly combines with the annular top surface of the tube body 201, which is conducive to further improving the sealing performance of the sealing plug 1 and avoiding the overflow of samples and / or reagents and / or aerosol in the tube body 201.

[0040] In an embodiment of the present application, a smooth arc transition is formed between the outer peripheral arm of the elastic connecting body 102 and the top surface of the stop body 108, which improves the connection strength between the elastic connecting body 102 and the stop body 108, avoids the breakage of the elastic connecting body 102 when it is deflected outward, and is beneficial to further prolong the service life of the sealing plug 1.

[0041] Another embodiment of the present application provides a consumable assembly, as shown in the drawings, which comprises: Figure 5 As shown in the drawings, the consumable assembly comprises:

[0042] The consumable 2 comprises a connecting plate body 202 and a plurality of tube bodies 201 which are arranged on the connecting plate body 202 and along the length direction of the connecting plate body 202; and

[0043] The sealing plug 1 in the above embodiment is used to seal the tube body 201.

[0044] Specifically, the consumable 2 in the present embodiment can be a reagent box (or a reagent strip), which comprises a connecting plate body 202 and a plurality of tube bodies 201 which are inserted into the connecting plate body 202, and the plurality of tube bodies 201 are arranged along the length direction of the connecting plate body 202. The inside of the tube body 201 forms a containing cavity 204 for containing samples and / or reagents. When the samples and / or reagents in the tube body 201 need to be subjected to ultrasonic operation, the sealing plug 1 needs to be inserted into the opening of the tube body 201 to avoid the aerosol in the tube body 201 from overflowing out of the tube body 201 and polluting the environment during the ultrasonic operation, thereby ensuring the safety of the ultrasonic operation.

[0045] In an embodiment of the present application, the tube body 201 comprises a containing section 2011 and a protruding section 2012, the containing section 2011 is located below the connecting plate body 202, and the protruding section 2012 is arranged above the containing section 2011 and partially protrudes upward from the top surface of the connecting plate body 202.

[0046] Specifically, the inside of the containing section 2011 and the protruding section 2012 together form the containing cavity 204, a gap is formed between the protruding sections 2012 of two adjacent tube bodies 201, the sealing plug 1 is inserted downward from the protruding section 2012 to plug the tube body 201, and the arrangement of the protruding section 2012 can realize the sealing cooperation between the tube body 201 and the sealing plug 1, and can also avoid the situation that the samples and / or reagents are left on the top surface of the connecting plate body 202 when entering the tube body 201 and flow into the inside of the adjacent tube body 201, thereby avoiding the cross-infection of the samples and / or reagents in the adjacent tube bodies 201.

[0047] In an embodiment of the present application, the consumable 2 further comprises a reinforcing rib 203 which is arranged below the connecting plate body 202 and between the outer peripheral walls of two adjacent tube bodies 201.

[0048] Specifically, in the length direction of the connecting plate body 202, the plurality of pipe bodies 201 are distributed at intervals, the connecting plate body 202 is arranged at the top of the plurality of pipe bodies 201, that is, the connecting plate body 202 is connected with the top of each pipe body 201, and the reinforcing ribs 203 are in a long strip shape and are distributed vertically, and the two sides of the reinforcing ribs 203 are respectively connected with the outer peripheral walls of the adjacent two pipe bodies 201. The above arrangement improves the connection stability between each part of the consumable 2 and improves the overall structural strength of the consumable 2.

[0049] In an embodiment of the present application, the connecting plate body 202, the plurality of pipe bodies 201 and the plurality of reinforcing ribs 203 in the embodiment are integrally injection molded, which reduces the production difficulty of the consumable 2 and improves the production efficiency and overall structural stability of the consumable 2.

[0050] In the description of the present application, it should be understood that the terms "first", "second" are for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0051] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0053] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary, and are not to be interpreted as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A sealing plug, characterized in that, The sealing plug (1) is suitable for consumables (2) used in nucleic acid extraction and includes: A plug (101) is used to block the opening of the tube (201) of the consumable (2); Multiple elastic connectors (102) are provided, each extending upward from the top of the plug (101) and evenly distributed circumferentially at intervals on the top surface of the plug (101). A connecting cavity (103) for partial adapter insertion is formed between the multiple elastic connectors (102). A protrusion (104) for engaging with a limiting groove on the adapter is formed on the sidewall of each elastic connector (102) facing the connecting cavity (103).

2. The sealing plug according to claim 1, characterized in that, The number of the elastic connectors (102) is not less than three.

3. The sealing plug according to claim 1, characterized in that, The elastic connector (102) is made of plastic.

4. The sealing plug according to claim 1, characterized in that, The elastic connector (102) also has a first guide wall (105) formed on the side facing the connecting cavity (103) for guiding the adapter.

5. The sealing plug according to claim 1, characterized in that, In the radially inward direction of the plug body (101), a second guide wall (106) is formed on the outer peripheral side of the plug body (101) and a recessed cavity (107) is formed on the plug body (101) from bottom to top.

6. The sealing plug according to any one of claims 1-5, characterized in that, The sealing plug (1) also includes a stop body (108) surrounding the outer periphery of the plug body (101). The bottom of the stop body (108) is formed with a stop surface (109) for tightly engaging with the top surface of the tube body (201). A smooth arc transition is formed between the outer periphery of the elastic connector (102) and the top surface of the stop body (108).

7. A consumable component, characterized in that, The consumable component includes: Consumable (2), including a connecting plate (202) and a plurality of tubes (201) all disposed on the connecting plate (202) and arranged along the length direction of the connecting plate (202); and The sealing plug (1) according to any one of claims 1-6 is used to seal the tube body (201).

8. The consumable component according to claim 7, characterized in that, The tube body (201) includes a receiving section (2011) and a protruding section (2012). The receiving section (2011) is located below the connecting plate body (202), and the protruding section (2012) is disposed above the receiving section (2011) and partially protrudes upward from the top surface of the connecting plate body (202).

9. The consumable component according to claim 7, characterized in that, The consumable (2) also includes reinforcing ribs (203) disposed below the connecting plate (202) and located between the outer peripheral walls of two adjacent tubes (201).

10. The consumable component according to claim 9, characterized in that, The connecting plate (202), the plurality of tubes (201), and the plurality of reinforcing ribs (203) are integrally injection molded.

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