Sampling detection device

Abstract

The utility model relates to a sampling detection device which comprises a sampling pipe, an annular flange is integrally formed on the peripheral side of the top end of the sampling pipe, a connector is fixedly connected to the upper surface of the annular flange, a plurality of air holes are formed in the peripheral side of the bottom end of the connector, and external threads are formed in the outer wall of the connector above the air holes. The top end of the connector is in threaded connection with a sealing cover through the external threads, a rubber column is connected to the bottom wall of the sealing cover, an outer air bag and an inner air bag which are of an annular structure are arranged on the inner side and the outer side of the bottom end of the connector respectively, and the outer air bag is communicated with the inner air bag through an air hole. The pressing ring rotationally connected to the bottom end of the sealing cover can be matched with the annular flange to extrude the outer air bag to contract, air in the outer air bag is pressed into the inner air bag through the air hole so that the inner air bag can be expanded, the expanded inner air bag can be tightly attached to the surface of the rubber column, and leakage of samples containing viruses stored in the sampling pipe is avoided as much as possible through secondary sealing of the sampling pipe.

Description

Technical Field

[0001] This utility model belongs to the field of sampling device technology, specifically relating to a sampling and detection device. Background Technology

[0002] Virus testing is an important topic in medicine. Currently, there are many methods for collecting specimens for viral diseases. The most common methods include urine, feces, blood, and saliva. When collecting urine or feces, samples are usually taken through a sampling tube and then sent for testing.

[0003] Existing sampling tubes are generally sealed only with a sealing cap after sampling. In actual use, the sealing cap may not be tightened properly or the threads may not fit accurately, which can lead to leakage of the sampling tube and make it inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to provide a sampling and testing device with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A sampling and testing device includes a sampling tube with an annular flange integrally formed on the periphery of its top end. A connector is fixedly connected to the upper surface of the annular flange. Multiple air holes are formed on the periphery of the bottom end of the connector. An external thread is formed on the outer wall of the connector above the air holes. A sealing cap is screwed to the top end of the connector through the external thread. A rubber column extending into the sampling tube is fixedly connected to the top wall of the inner cavity of the sealing cap. A sampling device is installed on the bottom end of the rubber column. A pressure ring is installed on the periphery of the bottom end of the sealing cap. An outer air bladder with an annular structure is fixedly sleeved on the outer wall of the bottom end of the connector. An inner air bladder with an annular structure is fixedly connected to the inner wall of the bottom end of the connector. The adjacent sides of the outer air bladder and the inner air bladder are interconnected through the air holes.

[0007] As a further optimization of this utility model, the inner wall of the sealing cover is provided with an internal thread that matches the external thread, and a handle is fixedly connected to the upper surface of the sealing cover.

[0008] As a further optimization of this utility model, the rubber column has a cylindrical structure, and when the sealing cap is tightly screwed to the top of the connector through the external thread, the bottom height of the rubber column is lower than the bottom height of the inner airbag.

[0009] As a further optimization of this utility model, the sampling device includes a connecting rod with one end fixedly connected to the center of the bottom end of the rubber column, and a sampler is fixedly connected to the end of the connecting rod away from the rubber column.

[0010] As a further optimization of this utility model, the top end of the pressure ring is sleeved on the bottom of the sealing cover and rotatably connected to the sealing cover, and the bottom end of the pressure ring is lower than the bottom end of the sealing cover.

[0011] As a further optimization of this utility model, a heat insulation cover is provided around the sampling tube, the top of the heat insulation cover is fixed to the lower surface of the annular flange, a receiving cavity is formed between the inner wall of the heat insulation cover and the outer wall of the sampling tube, and a through hole communicating with the receiving cavity is also provided on the bottom wall of the heat insulation cover, and a sealing plug is inserted into the through hole.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. A rubber column is connected to the bottom wall of the sealing cap. An outer air bladder and an inner air bladder with an annular structure are respectively set on the inner and outer sides of the bottom end of the connector. The outer air bladder is connected to the inner air bladder through the air hole. When the user tightens the sealing cap, rotating the pressure ring connected to the bottom end of the sealing cap will cooperate with the annular flange to squeeze the outer air bladder to contract. The air in the outer air bladder is forced into the inner air bladder through the air hole, causing the inner air bladder to expand. The expanded inner air bladder will fit tightly against the surface of the rubber column, providing a secondary seal for the sampling tube and minimizing the leakage of virus-containing specimens stored in the sampling tube.

[0014] 2. The sampling tube is covered with an insulation cover with a through hole at the bottom. The inner wall of the insulation cover and the outer wall of the sampling tube form a cavity. When the sample stored in the sampling tube cannot be sent for testing in time due to high temperature, low temperature liquid can be added to the cavity through the through hole to extend the storage time of the sample and make it more convenient for users. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the location of the vent holes in this utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the rubber column, sampler, and connecting rod of this utility model;

[0018] Figure 4 This is a utility model Figure 2 A schematic diagram of the cross-sectional structure;

[0019] Figure 5 This is a utility model Figure 4 Enlarged view of a detail at point A in the middle.

[0020] In the diagram: 1. Sampling tube; 2. Annular flange; 3. Connector; 4. Air vent; 5. External thread; 6. Sealing cap; 7. Handle; 8. Rubber column; 9. Connecting rod; 10. Sampler; 11. Pressure ring; 12. Outer air bladder; 13. Inner air bladder; 14. Insulation cover; 15. Receiving cavity; 16. Sealing plug. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example

[0023] like Figure 1 - Figure 5 As shown, a sampling and testing device includes a sampling tube 1 for storing a virus-containing sample after sampling. An annular flange 2 is integrally formed on the periphery of the top of the sampling tube 1. A connector 3 is fixedly connected to the upper surface of the annular flange 2. Multiple air holes 4 are opened on the periphery of the bottom of the connector 3. An external thread 5 is opened on the outer wall of the connector 3 above the air holes 4. A sealing cap 6 is screwed to the top of the connector 3 through the external thread 5. After sampling, the top of the sampling tube 1 can be sealed by the sealing cap 6 in conjunction with the connector 3 to avoid the sample being directly exposed to the external environment, which is prone to contamination and affects the accuracy of subsequent test results.

[0024] The inner wall of the sealing cover 6 is provided with an internal thread that is compatible with the external thread 5. The internal thread is provided to be screwed into the external thread 5 on the outer wall of the top of the connector 3, so as to avoid the sealing cover 6 from being separated from the connector 3 after being subjected to external forces such as vibration. A handle 7 is fixedly connected to the upper surface of the sealing cover 6.

[0025] A rubber column 8 extending into the sampling tube 1 is fixedly connected to the top wall of the inner cavity of the sealing cap 6. The rubber column 8 has a cylindrical structure, and a sampling device is installed on the bottom end of the rubber column 8. The sampling device includes a connecting rod 9 with one end fixedly connected to the center of the bottom end of the rubber column 8. A sampler 10 is fixedly connected to the end of the connecting rod 9 away from the rubber column 8. The sampler 10 is set to facilitate the sampling of viscous specimens such as feces and pus. After sampling, the specimen adheres to the sampler 10, which also facilitates the subsequent testing of the specimen containing the virus in the sampling tube 1. At the same time, after sampling the liquid specimen, the user rotates the handle 7 to drive the sampler 10 connected to the bottom end of the connecting rod 9 to rotate in the sampling tube 1, mixing the liquid specimen containing the virus to improve the accuracy of the test results.

[0026] The outer wall of the bottom end of the connector 3 is fixedly fitted with an outer airbag 12 with a ring structure, and the inner wall of the bottom end of the connector 3 is fixedly connected with an inner airbag 13 with a ring structure. The adjacent sides of the outer airbag 12 and the inner airbag 13 are connected to each other through air holes 4. When the sealing cover 6 is tightly screwed to the top of the connector 3 through the external thread 5, the bottom height of the rubber column 8 is lower than the bottom height of the inner airbag 13.

[0027] A pressure ring 11 is installed on the bottom periphery of the sealing cap 6. The top of the pressure ring 11 is fitted onto the bottom of the sealing cap 6 and is rotatably connected to the sealing cap 6. The bottom height of the pressure ring 11 is lower than the bottom height of the sealing cap 6. When the sealing cap 6 is tightened, the bottom of the pressure ring 11 can cooperate with the annular flange 2 below the outer air bladder 12 to squeeze the outer air bladder 12, causing the outer air bladder 12 to contract. This forces the gas in the outer air bladder 12 into the inner air bladder 13 through the air hole 4, causing the inner air bladder 13 to expand. Since the bottom height of the rubber column 8 after the sealing cap 6 is tightened is lower than the bottom height of the inner air bladder 13, the expanded inner air bladder 13 will fit tightly against the surface of the rubber column 8, achieving a secondary seal for the sampling tube 1. This avoids the situation where the existing sampling tube 1 is generally only sealed by the sealing cap 6 after sampling. In actual use, the sealing cap 6 may not be tightened or the thread fit may be inaccurate, leading to leakage of the sampling tube 1.

[0028] A heat insulation cover 14 is fitted around the sampling tube 1. The top of the heat insulation cover 14 is fixed to the lower surface of the annular flange 2. A receiving cavity 15 is formed between the inner wall of the heat insulation cover 14 and the outer wall of the sampling tube 1. A through hole communicating with the receiving cavity 15 is also opened on the bottom wall of the heat insulation cover 14. A sealing plug 16 is inserted into the through hole. When it is too hot to send the virus-containing sample for testing in time, the sealing plug 16 can be opened and an appropriate amount of ice water can be introduced into the receiving cavity 15 formed between the inner wall of the heat insulation cover 14 and the outer wall of the sampling tube 1. The ice water keeps the sample in the sampling tube 1 in a low-temperature environment, so as to extend the storage time of the sample and make it more convenient for users.

[0029] It should be noted that, in this sampling and detection device, when sampling, the sealing cover 6 can be opened, and then the handle 7 can be held to use the sampler 10 installed on the bottom end of the connecting rod 9 to sample the virus-containing specimen. After sampling, the sampler 10 is reinserted into the sampling tube 1 and the sealing cover 6 is screwed in to tighten it. Since a rubber column 8 is connected to the bottom wall of the sealing cover 6, and the bottom end of the connector 3 is provided with an outer airbag 12 fixedly sleeved on the outer wall of the connector 3 and an inner airbag 13 fixed to the inner wall of the connector 3. Furthermore, the outer airbag 12 is connected to the inner airbag 13 through the air hole 4. When the user tightens the sealing cap 6, the pressure ring 11 connected to the bottom of the sealing cap 6 will cooperate with the annular flange 2 to squeeze the outer airbag 12 to contract, and the air in the outer airbag 12 will be forced into the inner airbag 13 through the air hole 4, causing the inner airbag 13 to expand. The expanded inner airbag 13 will fit tightly against the surface of the rubber column 8, achieving a secondary seal for the sampling tube 1, and minimizing the leakage of virus-containing specimens stored in the sampling tube 1.

[0030] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A sampling detection device comprising a sampling tube (1), characterized in that: The sampling tube (1) has an integrally formed annular flange (2) on the top periphery. A connector (3) is fixedly connected to the upper surface of the annular flange (2). Multiple air holes (4) are opened on the bottom periphery of the connector (3). An external thread (5) is opened on the outer wall of the connector (3) above the air holes (4). A sealing cap (6) is screwed to the top of the connector (3) through the external thread (5). A rubber column (8) extending into the sampling tube (1) is fixedly connected to the top wall of the inner cavity of the sealing cap (6). A sampling device is installed on the bottom end of the rubber column (8). A pressure ring (11) is installed on the bottom periphery of the sealing cap (6). An outer air bladder (12) with an annular structure is fixedly sleeved on the outer wall of the bottom end of the connector (3). An inner air bladder (13) with an annular structure is fixedly connected to the inner wall of the bottom end of the connector (3). The adjacent sides of the outer air bladder (12) and the inner air bladder (13) are interconnected through the air holes (4).

2. The sampling detection device of claim 1, wherein: The inner wall of the sealing cover (6) is provided with an internal thread that is compatible with the external thread (5), and a handle (7) is fixedly connected to the upper surface of the sealing cover (6).

3. The sampling and detection device according to claim 1, characterized in that: The rubber column (8) has a cylindrical structure. When the sealing cap (6) is tightly screwed to the top of the connector (3) through the external thread (5), the bottom height of the rubber column (8) is lower than the bottom height of the inner airbag (13).

4. The sampling and detection device according to claim 1, characterized in that: The sampling device includes a connecting rod (9) with one end fixedly connected to the center of the bottom end of the rubber column (8), and a sampler (10) is fixedly connected to the end of the connecting rod (9) away from the rubber column (8).

5. The sampling and detection device according to claim 4, characterized in that: The top end of the pressure ring (11) is fitted onto the bottom of the sealing cover (6) and is rotatably connected to the sealing cover (6), and the bottom end of the pressure ring (11) is lower than the bottom end of the sealing cover (6).

6. The sampling and detection device according to claim 1, characterized in that: The sampling tube (1) is fitted with a heat insulation cover (14) around its periphery. The top of the heat insulation cover (14) is fixed to the lower surface of the annular flange (2). A receiving cavity (15) is formed between the inner wall of the heat insulation cover (14) and the outer wall of the sampling tube (1). A through hole communicating with the receiving cavity (15) is also opened on the bottom wall of the heat insulation cover (14). A sealing plug (16) is inserted into the through hole.

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