Tube cap and liquid storage tube

Abstract

The utility model provides a kind of pipe cover and liquid storage tube, comprising: cover, it is provided with hollow cavity and is sequentially provided with two connecting rings along axial direction, two connecting rings are all provided with connecting section, and connecting section is used for and pipe body can be dismantled and seal connection;Flow guide cover, including connecting plate, flow guide dripper and detachable plug, connecting plate is connected in the cavity wall of hollow cavity, flow guide dripper is provided with flow guide cavity with flow guide inclined surface, detachable plug is connected connecting plate by flow guide dripper, detachable plug is used to isolate or communicate flow guide cavity and pipe body.The utility model in the pipe cover adopts double thread structure, and cooperate with flow guide cavity with flow guide inclined surface and detachable detachable plug, can make the pipe body connected by pipe cover can realize sealing storage function, simultaneously, still can make the liquid storage tube using this pipe cover in not opening cover and not using external pipetting component condition, just can carry out liquid transfer, so that solution is not easy to be contaminated by external component and can improve pipetting efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of reagent tube technology, and in particular relates to a tube cap and a liquid storage tube. Background Technology

[0002] Liquid preservation tubes are frequently used in biological and chemical assays. For example, a standard disposable liquid preservation tube consists of two parts: the tube body and the cap. Cell preservation solution or other liquid is placed in the tube body, the cap is screwed on, and it is used for routine preservation. When transferring the liquid to another tube, the cap must be opened, a pipette used to dispense the liquid, and the dropper placed in the desired location. This process is not only cumbersome and inefficient, but also susceptible to contamination from external components and is not ideal for scenarios such as the dissolution of lyophilized bulbs. Utility Model Content

[0003] The main purpose of this invention is to provide a cap and a liquid storage tube, which aims to solve the technical problems of low liquid transfer efficiency and easy contamination during liquid transfer in existing liquid storage tubes.

[0004] To achieve the above objectives, this utility model provides a pipe cap, comprising: a cap body having a hollow cavity and two connecting rings arranged sequentially along the axial direction, each connecting ring having a connecting section for detachable and sealed connection with the pipe body; and a flow guide cap comprising a connecting plate, a flow guide nozzle, and a detachable plug, wherein the connecting plate is connected to the cavity wall of the hollow cavity, the flow guide nozzle has a flow guide cavity with a flow guide slope, and the detachable plug is connected to the connecting plate through the flow guide nozzle, and the detachable plug is used to isolate or connect the flow guide cavity and the pipe body.

[0005] In this embodiment of the utility model, at least one of the two connecting rings has an internal threaded section as the connecting segment, and the pipe cover further includes an inner sealing ring disposed within the internal threaded section. The inner sealing ring is used to extend into the pipe body and seal with the pipe body.

[0006] In this embodiment of the utility model, the flow guide nozzle is located between the removable plug and the inner sealing ring along the axial direction of the pipe cap. The end of the inner sealing ring is provided with a return slope, which is inclined from the inside out in a direction away from the removable plug.

[0007] In this embodiment of the utility model, both connecting segments are internally threaded segments, and there are two internal sealing rings, with the two connecting rings and the two internal sealing rings being arranged in a one-to-one correspondence.

[0008] In this embodiment of the utility model, the cover and the flow guide cover are integrally formed, and the detachable plug is a breakable structure.

[0009] In this embodiment of the invention, a break-off notch is provided between the flow guide nozzle and the detachable plug.

[0010] In this embodiment of the invention, a break-off cavity is provided at one end of the flow guide nozzle near the detachable plug, so that the wall thickness of the flow guide cavity gradually decreases towards the detachable plug.

[0011] In this embodiment of the utility model, the detachable plug is provided with a thickening cavity communicating with the breakage cavity, and the breakage notch is located between the thickening cavity and the breakage cavity; and / or, an anti-slip layer is provided on the outer surface of the cover.

[0012] This utility model also proposes a liquid storage tube, which includes a tube body and a tube cap as described above.

[0013] In this embodiment of the invention, there are two tubes, one of which is used to store liquid and the other is used to store freeze-dried liquid. The guide slope is used to guide the liquid into the tube containing the freeze-dried liquid.

[0014] Through the above technical solution, the liquid storage tube provided by this utility model embodiment has the following beneficial effects: The tube cap includes a flow guide cap and a cap body surrounding the flow guide cap. The cap body has two connecting rings along its own axis, which can connect two tube bodies to the same tube cap. The two tube bodies are locked by double threads. A detachable plug is used to isolate the flow guide cavity from the tube body, allowing the liquid storage tube to be used as a conventional storage tube for liquid storage. Depending on the actual use requirements, one of the connecting rings can be connected to the tube body through a connecting section, while the other connecting ring is left unused. When it is necessary to mix the contents of the two tube bodies, the detachable plug can be removed to connect the flow guide cavity and the tube body. The liquid in one tube body enters the other tube body through the flow guide cavity. The other tube body can hold lyophilized bulbs or liquids. Liquid transfer can be performed without the need for an additional pipette, simplifying the pipetting process and avoiding contamination of the liquid by external components. The tube cap of this invention adopts a double-threaded structure, and is combined with a flow guide cavity with a flow guide slope and a removable plug. This allows the tube body connected to the tube cap to achieve a sealed preservation function, while also enabling the liquid storage tube using this tube cap to transfer liquid without opening the cap or using external pipetting components. This makes the solution less susceptible to contamination by external components and improves pipetting efficiency.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the pipe cap structure according to one embodiment of the present utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the pipe cap according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of a liquid storage tube according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of a liquid storage tube according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the liquid storage tube according to another embodiment of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the liquid storage tube according to another embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0019] The liquid storage tube according to the present invention is described below with reference to the accompanying drawings.

[0020] like Figures 1 to 4 As shown in the embodiment of this utility model, the pipe cover 1 includes a cover body 11 and a flow guide cover 12. The cover body 11 is provided with a hollow cavity and two connecting rings 111 are arranged sequentially along the axial direction. Both connecting rings 111 are provided with connecting sections 112. The connecting sections 112 are used for detachable and sealed connection with the pipe body 2. The flow guide cover 12 includes a connecting plate 121, a flow guide nozzle 122 and a detachable plug 125. The connecting plate 121 is connected to the cavity wall of the hollow cavity. The flow guide nozzle 122 is provided with a flow guide cavity 123 with a flow guide slope. The detachable plug 125 is connected to the connecting plate 121 through the flow guide nozzle 122. The detachable plug 125 is used to isolate or connect the flow guide cavity 123 and the pipe body 2.

[0021] Understandably, the cap 1 is primarily used for liquid storage tubes. In one embodiment, the cap 1 is used for disposable liquid tubes, while in other embodiments, the cap 1 can be used for reusable liquid tubes.

[0022] In this embodiment, the tube cap 1 includes a flow guide cap 12 and a cover body 11 surrounding the flow guide cap 12. The cover body 11 has two connecting rings 111 arranged axially, which can connect two tube bodies 2 to the same tube cap 1. Specifically, the two tube bodies 2 can be locked using a double-threaded connection or other detachable and sealing connection method. A removable plug 125 is used to isolate the flow guide cavity 123 from the tube body 2, allowing the liquid storage tube to be used as a conventional storage tube for liquid storage. Depending on actual usage requirements, one of the tube bodies can also be... Connecting ring 111 connects to tube body 2 via connecting section 112, while the other connecting ring 111 remains unused. When it is necessary to mix the contents of the two tube bodies 2, the removable plug 125 can be removed, connecting the flow guide cavity 123 to the tube body 2. Liquid in one tube body 2 flows through the flow guide cavity 123 into the other tube body 2. The other tube body 2 can hold lyophilized bulbs or liquid, eliminating the need for additional pipettes for liquid transfer. This simplifies the pipetting process and prevents contamination from external components. In this embodiment, the tube cap 1 employs a double-threaded structure, combined with the flow guide cavity 123 with a flow guide slope and the removable plug 125. This allows the tube body 2 connected to the tube cap 1 to achieve a sealed preservation function, while also enabling liquid transfer without opening the cap or using external pipetting components. This reduces the risk of solution contamination by external components and improves pipetting efficiency.

[0023] In one embodiment, the connecting segments 112 on both connecting rings 111 can both be externally threaded segments. In other embodiments, the connecting segment 112 on at least one of the two connecting rings 111 is an internally threaded segment. The pipe cap 1 also includes an inner sealing ring 13 encircling the internally threaded segment. The inner sealing ring 13 is used to extend into the pipe body 2 and seal with the pipe body 2. In this embodiment, the connecting rings 111 and the inner sealing ring 13 form a nested structure with alternating inner and outer threads, which can provide a double-layer seal for the pipe body 2 and improve the sealing performance of the pipe cap 1. The upper and lower ends of the pipe cap 1 can both be connected to the pipe body 2 by internal threads, or one end can be provided with an internal thread and the other end with an external thread to connect different pipe bodies 2.

[0024] Both connecting rings 111 have internal threads and are hollow rings. The number of inner sealing rings 13 can be one or two. When there is only one inner sealing ring 13, the inner side of one of the connecting rings 111 is provided with an inner sealing ring 13. In one embodiment, both connecting sections 112 are internally threaded sections, and there are two inner sealing rings 13. The two connecting rings 111 and the two inner sealing rings 13 are arranged in a one-to-one correspondence. The inner side of both connecting rings 111 is provided with an inner sealing ring 13, which can further improve the sealing performance of the pipe cover 1.

[0025] like Figure 1 and Figure 2The flow guide nozzle 122 is located axially between the removable plug 125 and the inner sealing ring 13 along the pipe cap 1. The end of the inner sealing ring 13 is provided with a return slope 131, which slopes from the inside outwards away from the removable plug 125. For example... Figure 2 As shown, in one embodiment, both connecting rings 111 adopt an internal thread structure, and an inner sealing ring 13 is provided on the inner side of the lower connecting ring 111. The lower end of the inner sealing ring 13 is provided with a return slope 131, which can guide the liquid flow and guide the liquid on the pipe cap 1 to the pipe body 2, thereby reducing the liquid residue on the pipe cap 1.

[0026] Specifically, the cover 11 and the guide cover 12 are integrally formed, and the detachable plug 125 is a breakable structure. In this embodiment, the pipe cover 1 is an integrally formed part, and the detachable plug 125 is a breakable structure. The detachable plug 125 can be disassembled by breaking it off. The structure is simple and easy to operate, which improves the ease of operation of the pipe cover 1.

[0027] like Figure 2 As shown, a break-off notch 127 is provided between the flow guide nozzle 122 and the detachable plug 125. In this embodiment, the detachable plug 125 is cylindrical, and the flow guide nozzle 122 is conical. The detachable plug 125 is connected to the top of the flow guide nozzle 122, and the bottom of the detachable plug 125 is chamfered, so that a break-off notch 127 is formed at the connection between the flow guide nozzle 122 and the detachable plug 125, which facilitates the break-off operation of the detachable plug 125.

[0028] Understandably, the flow guide nozzle 122 has a break-off cavity 124 at one end near the removable plug 125, so that the wall thickness of the flow guide cavity 123 gradually decreases towards the removable plug 125. In this embodiment, the break-off cavity 124 is located at the top of the flow guide cavity 123. The break-off cavity 124 can be rectangular. The arrangement of this cavity allows the wall thickness of the flow guide cavity 123 to gradually decrease towards the removable plug 125, further facilitating the breakage of the removable plug 125.

[0029] In one embodiment, the removable plug 125 is provided with a thickening cavity 126 communicating with the breakage cavity 124, and a breakage notch 127 is located between the thickening cavity 126 and the breakage cavity 124. In this embodiment, the thickening cavity 126 can communicate with the flow guiding cavity 123, and the cross-section of the thickening cavity 126 can be rectangular, which is simple in structure and facilitates the production of the pipe cap 1. By providing a thickening cavity 126 at the breakage position of the removable plug 125, the breakage operation of the removable plug 125 can be further facilitated.

[0030] In one embodiment, an anti-slip layer 113 is provided on the outside of the cover 11. The anti-slip layer 113 in this embodiment may include anti-slip vertical grooves, the length of which is the same as the axial length of the cover 11, ensuring sufficient anti-slip area and facilitating rotation of the cover 11 by the operator. Multiple anti-slip vertical grooves may be provided, arranged sequentially along the circumference of the cover 11. In another embodiment, a smooth section may be provided between any two adjacent anti-slip vertical grooves; the combination of the smooth section and the anti-slip vertical grooves improves the aesthetics of the cover 1.

[0031] This utility model also proposes a liquid storage tube, which includes a tube body 2 and a tube cap 1 as described above. The tube body 2 is used for a detachable and sealed connection with the tube cap 1. The specific structure of the tube cap 1 is as described in the above embodiments. Since the liquid storage tube adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. In one embodiment, the liquid storage tube can be used as a disposable storage tube.

[0032] Specifically, a stop ring 21 for the stop tube cover 1 can be provided on the top of the tube body 2. In order to facilitate the cooperation between the tube body 2 and other components, a slot 22 for connecting with external components can also be provided on the tube body 2. The slot 22 is located between the stop ring 21 and the bottom of the tube body 2.

[0033] In one embodiment, there are two tube bodies 2, one for storing liquid and the other for storing lyophilized products. A flow-guiding slope is used to guide the liquid into the tube body 2 containing the lyophilized products. In this embodiment, the cap 1 can have a double-threaded structure, with both tube bodies 2 threadedly connected to the cap 1. One tube body 2 serves as a storage bottle for holding reconstitution reagents such as storage solutions, while the other tube body 2 serves as a container for holding lyophilized bulbs or lyophilized powder. Figure 6 As shown, when reconstituted lyophilized bulbs and powders, the removable plug 125 can be broken off, connecting the storage bottle and the receiving bottle, allowing liquid to flow through the guide cavity 123 into the receiving bottle, thus reconstituted the lyophilized bulbs / powder. This operation not only reduces contamination but also ensures no loss of the lyophilized bulbs, reducing the cumbersome steps of pipetting. The other parts of the two tube bodies 2 can be configured according to actual usage requirements. The bottom of the tube body 2 containing the lyophilized product, away from the other tube body 2, can be provided with a conical reconstitution chamber.

[0034] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pipe cap, characterized in that, The pipe cap (1) includes: The cover (11) has a hollow cavity and two connecting rings (111) are arranged in sequence along the axial direction. Both connecting rings (111) are provided with connecting sections (112). The connecting sections (112) are used to detachably and sealably connect with the tube body (2). The flow guide cover (12) includes a connecting plate (121), a flow guide nozzle (122), and a detachable plug (125). The connecting plate (121) is connected to the cavity wall of the hollow cavity. The flow guide nozzle (122) is provided with a flow guide cavity (123) with a flow guide slope. The detachable plug (125) is connected to the connecting plate (121) through the flow guide nozzle (122). The detachable plug (125) is used to isolate or connect the flow guide cavity (123) and the tube body (2).

2. The tube cover of claim 1, wherein The connecting section (112) provided on at least one of the two connecting rings (111) is an internal thread section, and the pipe cover (1) also includes an inner sealing ring (13) encircled in the internal thread section. The inner sealing ring (13) is used to extend into the pipe body (2) and seal with the pipe body (2).

3. The tube cover of claim 2, wherein, The flow guide nozzle (122) is located between the removable plug (125) and the inner sealing ring (13) along the axial direction of the pipe cap (1). The end of the inner sealing ring (13) is provided with a return slope (131), which is inclined from the inside to the outside in a direction away from the removable plug (125).

4. The tube cover of claim 2, wherein, Both connecting segments (112) are internal thread segments, and there are two inner sealing rings (13). The two connecting rings (111) and the two inner sealing rings (13) are set one-to-one.

5. The tube cover according to any one of claims 1 to 4, characterized in that The cover (11) and the guide cover (12) are integrally formed, and the detachable plug (125) is a breakable structure.

6. The tube cover of claim 5, wherein, A break-off notch (127) is provided between the flow guide nozzle (122) and the detachable plug (125).

7. The pipe cap according to claim 6, characterized in that, The flow guide nozzle (122) has a break-off cavity (124) at one end near the detachable plug (125), so that the wall thickness of the flow guide cavity (123) gradually decreases towards the detachable plug (125).

8. The pipe cap according to claim 7, characterized in that, The detachable plug (125) is provided with a thickening cavity (126) communicating with the fracture cavity (124), and the fracture notch (127) is located between the thickening cavity (126) and the fracture cavity (124); And / or, An anti-slip layer (113) is provided on the outside of the cover (11).

9. A liquid holding tube characterized by The liquid storage tube includes a tube body (2) and a tube cap (1) as described in any one of claims 1 to 8, wherein the tube body (2) is detachably and sealingly connected to the tube cap (1).

10. The fluid storage tube of claim 9, wherein, There are two tubes (2), one of which is used to store liquid and the other is used to store freeze-dried liquid. The guide slope is used to guide the liquid into the tube (2) containing freeze-dried liquid.

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