Swab sampling tube with multi-layer structure

Abstract

The utility model discloses a swab sampling tube with a multilayer structure, which relates to the technical field of swab sampling tubes, and comprises a sampling tube body, an inner container is fixedly mounted in the sampling tube body, a conical barrel is fixedly mounted in the inner container, a mounting ring is fixedly mounted at the top end of the conical barrel, and the inner container is fixedly mounted in the mounting ring. A sealing cover is rotationally mounted at the top end of the sampling tube body, the swab is bent in the sampling tube body, and meanwhile, the sealing cover drives an auxiliary disc to rub and extrude the surface of the swab, so that the bent swab is prevented from being attached to the inner wall of the sampling tube body, the quality of a sample is prevented from being influenced, and the sealing cover moves towards the interior of the sampling tube body; the pressing opening is formed in the top end of the sampling tube body, the extrusion ring is matched with the inner side of the pressing opening, the swab is bent and extruded while the sealing cover is covered, the swab is broken off more quickly, the sampling tube body is matched with the inner container to form a double-layer design, the overall strength of the sampling tube body is improved through the double-layer structure, and the heat preservation effect can be enhanced.

Description

Technical Field

[0001] This utility model relates to the field of swab sampling tube technology, and in particular to a multi-layer swab sampling tube. Background Technology

[0002] Swab sampling tubes are containers used to collect and preserve swab samples. They are used in clinical testing, disease surveillance, epidemiological surveys, and other fields, providing important evidence for disease diagnosis and control. In practical applications, sampling tubes typically require the following techniques:

[0003] 1. The tube body has a certain degree of hardness and toughness, which can protect the internal sample from damage during transportation and storage;

[0004] 2. Preservative solution to maintain the activity of cells, viruses, etc. in the sample;

[0005] 3. The tube cap fits tightly with the tube body to ensure the sealing of the sampling tube;

[0006] Currently, existing sampling tubes (such as patent publication number: CN219279877U) disclose a virus sampling tube that facilitates the fixation of swabs. When it is necessary to fix the swab, the swab rod is placed in the fixing groove inside the fixing block, and then the swab is pressed down, so that the swab squeezes the two rubber strips. The rubber strips are compressed and deformed under force, and the swab moves downward into the bottom of the fixing groove. The rubber strips play a limiting role on both sides of the upper end of the swab rod.

[0007] The sampling tube uses a straight-through column design and is filled with preservation fluid. However, the straight-through design at the end of the column requires a large amount of preservation fluid to cover the swab. Furthermore, if the swab falls into the tube, it will directly collide with the preservation fluid, which can easily cause splashing. Utility Model Content

[0008] (a) Technical problems to be solved

[0009] To address the shortcomings of existing technologies, this utility model provides a multi-layered swab sampling tube, which solves the technical problem that the sampling tube adopts a straight-through tube design and is filled with preservation fluid. However, the straight-through design at the end of the tube requires a large amount of preservation fluid to cover the swab, and the swab falling into the tube directly collides with the preservation fluid, easily causing splashing.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] A multi-layered swab sampling tube includes a sampling tube body, an inner liner fixedly installed inside the sampling tube body, a conical cylinder fixedly installed inside the inner liner, an installation ring fixedly installed at the top of the conical cylinder, a sealing cap rotatably installed at the top of the sampling tube body, and a pressing port opened at the top of the sampling tube body. The sampling tube body has a double-layer design, and the inner side of the pressing port is tapered upwards, forming a blade design on the inner side of the pressing port.

[0013] Preferably, an auxiliary disk is fixedly installed at the bottom end of the sealing cover, a compression ring is fixedly installed at the bottom end of the sealing cover, and a sealing ring is fixedly installed at the bottom end of the sealing cover. The sealing ring has a multi-layer structure, and the main material of the sealing ring is polytetrafluoroethylene. The conical cylinder has a downwardly convex conical design and is hollow inside.

[0014] (III) Beneficial Effects

[0015] 1. The curved slope formed by the mounting ring and the conical tube acts as a buffer, reducing splashing of the preservation solution. The funnel-shaped design allows the preservation solution to be more evenly distributed within the sampling tube. When the swab is inserted, it ensures that all parts of the swab can fully contact the preservation solution, improving the effectiveness of the preservation solution on the sample. The curved slope formed by the mounting ring and the conical tube acts as a buffer, reducing splashing of the preservation solution.

[0016] 2. The swab bends inside the sampling tube body, while the sealing cap causes the auxiliary plate to rub and squeeze against the surface of the swab, preventing the bent swab from sticking to the inner wall of the sampling tube body and affecting the sample quality. The sealing cap moves into the sampling tube body. A pressing port is opened at the top of the sampling tube body. The squeezing ring cooperates with the inner side of the pressing port. The swab is bent and squeezed at the same time as the sealing cap is put on, breaking the swab more quickly. The sampling tube body and the inner liner form a double-layer design. The double-layer structure improves the overall strength of the sampling tube body and enhances the heat preservation effect. Attached Figure Description

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] Figure 1 This is a structural diagram of the sampling tube body of this utility model;

[0019] Figure 2 This is a structural diagram of the conical cylinder of this utility model;

[0020] Figure 3 This is a structural diagram of the sealing cap of this utility model;

[0021] Figure 4 This is a structural diagram of the auxiliary disk of this utility model;

[0022] Figure 5 This is a structural diagram of the pressing port of this utility model.

[0023] Legend: 11. Sealing cap; 12. Sampling tube body; 13. Mounting ring; 14. Conical cylinder; 15. Pressing port; 16. Sealing ring; 17. Squeezing ring; 18. Auxiliary disc; 19. Inner liner. Detailed Implementation

[0024] This application provides a multi-layered swab sampling tube that effectively solves the problem that while the sampling tube uses a straight-through column design filled with preservation fluid, the straight-through design at the end of the column requires a large amount of preservation fluid to cover the swab, and the swab falling into the tube directly collides with the preservation fluid, easily causing splashing. The curved slope formed by the mounting ring and the conical cylinder can act as a buffer, reducing splashing of the preservation fluid. The funnel-shaped design allows the preservation fluid to be more evenly distributed within the sampling tube. When the swab is inserted, it ensures that all parts of the swab can fully contact the preservation fluid, improving the effect of the preservation fluid on the sample. The curved slope formed by the mounting ring and the conical cylinder can act as a buffer, reducing splashing of the preservation fluid.

[0025] Example

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this embodiment effectively solves the technical problem that the sampling tube uses a straight-through column design and is filled with preservation fluid. However, the straight-through design at the end of the column requires a large amount of preservation fluid to cover the swab, and the swab falling into the tube directly collides with the preservation fluid, easily causing splashing. The overall idea is as follows:

[0027] To address the problems existing in the prior art, this utility model provides a multi-layered swab sampling tube, including a sampling tube body 12, an inner liner 19 fixedly installed inside the sampling tube body 12, a conical cylinder 14 fixedly installed inside the inner liner 19, and an installation ring 13 fixedly installed at the top of the conical cylinder 14. The sampling tube body 12 contains both the installation ring 13 and the conical cylinder 14. The inner side of the installation ring 13 has a curved bevel design, while the conical cylinder 14 has a downwardly convex conical design. The sampling tube body 12 and the conical cylinder 14 interact with each other... The design incorporates a double-layer structure. The conical tube 14 is filled with a preservation solution, which reduces the amount of solvent inside, thus minimizing the amount of preservation solution available for sample preservation and processing. A sealing cap 11 is rotatably mounted on the top of the sampling tube body 12. A pressing port 15 is provided at the top of the sampling tube body 12. The inner side of the pressing port 15 is tapered upwards, forming a blade design. The sampling tube body 12 is a double-layer design, which enhances the overall strength of the sampling tube body 12 and improves the heat preservation effect.

[0028] An auxiliary plate 18 is fixedly installed at the bottom end of the sealing cover 11, a compression ring 17 is fixedly installed at the bottom end of the sealing cover 11, and a sealing ring 16 is fixedly installed at the bottom end of the sealing cover 11. The sealing ring 16 is a multi-layer structure, and the main material of the sealing ring 16 is polytetrafluoroethylene. The conical cylinder 14 is a downwardly convex conical design with a hollow interior. It has extremely low temperature dependence and can maintain good mechanical and sealing performance at low temperatures. It has a low coefficient of friction and a smooth surface, which is beneficial for sealing.

[0029] Working principle:

[0030] The first step involves collecting a sample using a swab. One end of the swab is inserted into the sampling tube body 12. The sealing cap 11 is pressed down, aligning its bottom with the top of the sampling tube body 12. The sealing cap 11 then compresses the swab, causing it to bend inside the sampling tube body 12. Simultaneously, the bent swab engages with the pressing port 15. Pressing the sealing cap 11 further compresses the swab, causing it to bend inside the sampling tube body 12. Simultaneously, the sealing cap 11 causes the auxiliary disc 18 to rub against the swab's surface. The auxiliary disc 18 has a rounded end to prevent the bent swab from adhering to the inner wall of the sampling tube body 12, thus affecting sample quality. A compression ring 17 is installed at the bottom of the sealing cap 11. The compression ring 17 is made of metal. The sealing cap 11 moves into the sampling tube body 12. A pressing port 15 is opened at the top of the sampling tube body 12. The compression ring 17 cooperates with the inner side of the pressing port 15. When the sealing cap 11 is put on, the swab is bent and squeezed, breaking the swab more quickly. At the same time, the sealing cap 11 rotates into the top of the sampling tube body 12. A sealing ring 16 is installed at the bottom of the sealing cap 11. The sealing ring 16 is made of polytetrafluoroethylene, which has extremely low temperature dependence and can maintain good mechanical and sealing performance at low temperatures. It has a low coefficient of friction and a smooth surface, which is conducive to sealing.

[0031] The sampling tube body 12 has an inner liner 19, forming a double-layer design. The space between the sampling tube body 12 and the inner liner 19 is hollow. The inner liner 19 contains a mounting ring 13 and a conical cylinder 14. The inner side of the mounting ring 13 has a curved, beveled design, providing a gentler transition area for the swab as it falls into the sampling tube body 12, preventing direct impact and damage to the bottom of the sampling tube. Simultaneously, the conical cylinder 14 has a downward-convex conical design. This design allows the sampling tube body 12 and the conical cylinder 14 to work together, forming a double-layer structure. Firstly, the conical cylinder 14 is filled with a preservation solution. Due to the characteristics of the conical structure, the required amount of preservation solution is greatly reduced, which not only lowers costs but also... The amount of preservation fluid also makes transportation and storage more convenient, reducing the risk of leakage due to excessive preservation fluid. The inclined surface formed by the mounting ring 13 and the conical cylinder 14 plays a key buffering role when the swab falls into the sampling tube body 12. When the swab falls, the impact force it generates will first act on the curved inclined surface formed by the mounting ring 13 and the conical cylinder 14. This inclined surface can disperse the impact force, thereby reducing the disturbance to the preservation fluid in the conical cylinder 14 and effectively reducing the possibility of preservation fluid splashing. Under the guidance of the funnel-shaped inclined surface, the preservation fluid can be more evenly distributed in the sampling tube body 12. When the swab is placed in, this even distribution ensures that all parts of the swab can fully contact the preservation fluid, improving the preservation effect of the preservation fluid on the sample.

[0032] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A multi-layered swab sampling tube, comprising a sampling tube body (12), characterized in that, The sampling tube body (12) is fixedly installed with an inner liner (19), and a conical cylinder (14) is fixedly installed inside the inner liner (19). An installation ring (13) is fixedly installed at the top of the conical cylinder (14). A sealing cap (11) is rotatably installed at the top of the sampling tube body (12). A pressing port (15) is opened at the top of the sampling tube body (12). The sampling tube body (12) is a double-layer design. The inner side of the pressing port (15) is converging upwards, and a blade design is formed on the inner side of the pressing port (15).

2. The multi-layered swab sampling tube as described in claim 1, characterized in that, An auxiliary plate (18) is fixedly installed at the bottom of the sealing cover (11).

3. The multi-layered swab sampling tube as described in claim 1, characterized in that, A compression ring (17) is fixedly installed at the bottom end of the sealing cap (11).

4. The multi-layered swab sampling tube as described in claim 1, characterized in that, A sealing ring (16) is fixedly installed at the bottom end of the sealing cover (11).

5. A multi-layered swab sampling tube as described in claim 4, characterized in that, The sealing ring (16) is a multi-layer structure, and the main material of the sealing ring (16) is polytetrafluoroethylene.

6. A multi-layered swab sampling tube as described in claim 1, characterized in that, The conical cylinder (14) is a downwardly convex conical design with a hollow interior.

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