A pathogen sampling device

Abstract

The utility model relates to pathogen sampling equipment technical field discloses a pathogen sampling device, including liquid receiving piece, sampling container, hose, nozzle and peristaltic pump, in actual use, the storage of sampling liquid in the containing chamber of sampling container, the both ends of hose along its length direction are connected to sampling container and nozzle respectively, and the hose is connected to the pump head of peristaltic pump, and the liquid receiving groove of liquid receiving piece is used for receiving the sampling liquid that nozzle sprays, based on this, when peristaltic pump works, the sampling liquid in containing chamber sprays from the nozzle to the air through hose, in this process, the sampling liquid captures the pathogen in the air and concentrates the pathogen in the liquid receiving groove, thereby, the pathogen sampling device can smoothly collect the pathogen sample in the air, and moreover, the pathogen sampling device can realize the collection of the pathogen in the air through liquid receiving piece, sampling container, hose, nozzle and peristaltic pump, its simple structure, small volume has the advantage that is convenient to carry and uses in different environment.

Description

Technical Field

[0001] This utility model belongs to the field of pathogen sampling equipment, and more specifically, relates to a pathogen sampling device. Background Technology

[0002] Pathogens such as viruses and bacteria exist in the air. These pathogens can be transmitted through aerosols. Inhaling these pathogens can cause health problems for humans or animals. Therefore, in order to monitor pathogens in the air, sampling devices are usually used to collect samples of pathogens in the air. However, existing sampling devices are large in size and complex in structure, making them inconvenient to carry and use in different environments. Utility Model Content

[0003] The main objective of this invention is to provide a pathogen sampling device that is simple in structure, easy to carry, and can be used in different environments.

[0004] According to a first aspect of the present invention, a pathogen sampling device is provided, comprising a liquid receiving component, a sampling container, a hose, a nozzle, and a peristaltic pump;

[0005] The liquid receiving component has a liquid receiving tank;

[0006] The sampling container has a receiving cavity for storing the sampling liquid;

[0007] One end of the hose along its length is used to connect to the sampling container, and the other end is used to connect to the nozzle, so as to connect the receiving cavity and the nozzle;

[0008] The pump head of the peristaltic pump is used to connect to the tubing, and the peristaltic pump is used to squeeze the tubing so that the tubing delivers the sampling liquid in the receiving cavity to the nozzle;

[0009] The nozzle is used to spray the sampling liquid into the air, and the receiving tank is used to receive the sampling liquid sprayed out by the nozzle.

[0010] In one specific embodiment of this invention, the nozzle is detachably connected to the liquid receiving component.

[0011] In a specific embodiment of this utility model, the opening of the liquid receiving tank faces upward;

[0012] The liquid receiving component has a connecting hole that extends vertically through the liquid receiving tank, and the connecting hole is located on the bottom surface of the liquid receiving tank.

[0013] The nozzle is inserted into the connection hole, the hose is used to connect to the end of the nozzle inserted into the connection hole, and the nozzle is used to spray the sampling liquid upward.

[0014] In a specific embodiment of the present invention, the liquid receiving component includes a liquid receiving body and a connecting column, wherein the liquid receiving body has the liquid receiving groove and the connecting hole;

[0015] The connecting column is connected to the bottom surface of the liquid receiving body. The axis of the connecting column extends vertically. The connecting column has a return hole that runs through it along its axis and communicates with the liquid receiving tank.

[0016] The sampling container includes a container body, a first connecting tube, and a connecting cap. The container body has the receiving cavity. One end of the first connecting tube along its length is connected to the container body, and the inner hole of the first connecting tube communicates with the receiving cavity. The other end of the first connecting tube along its length is detachably connected to the connecting cap, and the connecting cap seals the inner hole of the first connecting tube. The first connecting tube is used to connect to the connecting post.

[0017] When the first connecting pipe is connected to the connecting column, the reflux hole connects the receiving cavity and the liquid receiving tank through the inner hole of the first connecting pipe.

[0018] In a specific embodiment of this utility model, the bottom surface of the liquid receiving tank is an annular slope surrounding the return hole.

[0019] In a specific embodiment of this utility model, the outer wall surface of the connecting column is provided with an external thread, and the hole wall surface of the first connecting pipe is provided with an internal thread, and the external thread is used to connect with the internal thread.

[0020] In a specific embodiment of this utility model, the sampling container further includes a second connecting tube and a sealing assembly. One end of the second connecting tube along its length is connected to the container body, and the inner hole of the second connecting tube communicates with the receiving cavity. The other end of the second connecting tube along its length is connected to the sealing assembly, and the sealing assembly seals the inner hole of the second connecting tube. The flexible tube is used to connect to the second connecting tube so as to communicate with the receiving cavity through the inner hole of the second connecting tube.

[0021] In a specific embodiment of this utility model, the sealing assembly includes a sealing gasket and a fixing cap. The sealing gasket is connected to the end face of the second connecting tube facing away from the container body and covers the inner hole of the second connecting tube. The fixing cap is connected to the second connecting tube to fix the sealing gasket.

[0022] When the hose is connected to the second connecting pipe, the hose passes through the fixing cap and the sealing gasket, and the sealing gasket abuts against the outer peripheral wall of the hose.

[0023] In a specific embodiment of this utility model, the hose includes a tube body, a first straight connector and a second straight connector. The first straight connector and the second straight connector are respectively connected to both ends of the tube body along its length. The tube body is used to connect to the pump head of the peristaltic pump, the first straight connector is used to connect to the nozzle, and the second straight connector is used to connect to the second connecting tube.

[0024] When the second straight connector is connected to the second connecting pipe, the second straight connector passes through the fixing cap and the sealing gasket, and the sealing gasket abuts against the outer peripheral wall of the second straight connector.

[0025] In a specific embodiment of the present invention, the pathogen sampling device further includes a placement seat, the placement seat having a first mounting cavity, a second mounting cavity and a limiting groove, the limiting groove being disposed on the top surface of the placement seat, the first mounting cavity and the second mounting cavity being disposed at intervals within the placement seat, and the first mounting cavity being disposed below the limiting groove;

[0026] The bottom surface of the limiting groove is provided with a first clearance hole and a second clearance hole that penetrates vertically. Both the first clearance hole and the second clearance hole are connected to the first mounting cavity. The limiting groove is used to accommodate the liquid receiving body. The first clearance hole is used for the connecting column to pass through, and the second clearance hole is used for the hose to pass through to connect to the nozzle.

[0027] The first mounting cavity has an opening extending to the front side of the placement seat, and the first mounting cavity is used to accommodate the sampling container;

[0028] The cavity wall of the second mounting cavity is provided with a third clearance hole that extends to the front side of the placement seat;

[0029] The peristaltic pump is connected to the second mounting cavity, and at least a portion of the peristaltic pump head is disposed in the third clearance hole.

[0030] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0031] In practical use, the pathogen sampling device of this invention has a sampling container containing a sampling liquid. The two ends of a flexible tube along its length are connected to the sampling container and a nozzle, respectively, and the tube is connected to the pump head of a peristaltic pump. A receiving groove in the receiving component is used to collect the sampling liquid sprayed from the nozzle. When the peristaltic pump is working, the sampling liquid in the container is sprayed from the nozzle into the air through the flexible tube. During this process, the sampling liquid captures pathogens in the air and concentrates them in the receiving groove. Thus, the pathogen sampling device can successfully collect pathogen samples from the air. Moreover, the pathogen sampling device can collect pathogens from the air using only the receiving component, sampling container, flexible tube, nozzle, and peristaltic pump. It has a simple structure, small size, and is easy to carry and use in different environments. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0033] Figure 1 This is a structural diagram of the pathogen sampling device without the placement seat according to an embodiment of the present invention during use;

[0034] Figure 2 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of A in the middle;

[0035] Figure 3 This is a structural diagram of the pathogen sampling device according to an embodiment of the present invention during use;

[0036] Figure 4 This is a cross-sectional view of the liquid receiving body, sampling container, and placement seat in an embodiment of this utility model.

[0037] Figure 5 This is a cross-sectional view of the nozzle, liquid receiving body, and hose in an embodiment of the present invention.

[0038] Figure 6 This is a structural diagram of the sampling container according to an embodiment of the present invention.

[0039] In the diagram, 1. Liquid receiving component; 101. Liquid receiving tank; 1011. Annular slope; 102. Connecting hole; 103. Return hole; 11. Liquid receiving body; 12. Connecting column; 2. Sampling container; 201. Receiving cavity; 21. Container body; 22. First connecting pipe; 23. Connecting cap; 24. Second connecting pipe; 25. Sealing assembly; 251. Sealing gasket; 252. Fixing cap; 3. Flexible hose; 31. Pipe body; 32. First straight connector; 33. Second straight connector; 4. Nozzle; 5. Peristaltic pump; 6. Placement seat; 601. First mounting cavity; 6011. Opening; 602. Second mounting cavity; 603. Limiting groove; 604. First clearance hole; 605. Second clearance hole; 606. Third clearance hole. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0041] Reference Figures 1 to 6 As shown, a pathogen sampling device includes a receiving component 1, a sampling container 2, a tubing 3, a nozzle 4, and a peristaltic pump 5. The receiving component 1 has a receiving tank 101. The sampling container 2 has a receiving cavity 201 for storing sampling liquid. One end of the tubing 3 along its length is connected to the sampling container 2, and the other end is connected to the nozzle 4 to connect the receiving cavity 201 and the nozzle 4. The pump head of the peristaltic pump 5 is connected to the tubing 3, and the peristaltic pump 5 is used to squeeze the tubing 3 so that the tubing 3 delivers the sampling liquid in the receiving cavity 201 to the nozzle 4. The nozzle 4 is used to spray the sampling liquid into the air, and the receiving tank 101 is used to receive the sampling liquid sprayed from the nozzle 4.

[0042] In this embodiment of the pathogen sampling device, during actual use, the sampling container 2's receiving cavity 201 stores sampling liquid. The two ends of the flexible tube 3 along its length are connected to the sampling container 2 and the nozzle 4, respectively, and the flexible tube 3 is connected to the pump head of the peristaltic pump 5. The receiving tank 101 of the receiving component 1 is used to receive the sampling liquid sprayed from the nozzle 4. Based on this, when the peristaltic pump 5 is working, the sampling liquid in the receiving cavity 201 is sprayed into the air through the flexible tube 3 from the nozzle. During this process, the sampling liquid captures pathogens in the air and concentrates them in the receiving tank 101. Thus, the pathogen sampling device can successfully collect pathogen samples from the air. Furthermore, the pathogen sampling device, through the receiving component... 1. The sampling container 2, hose 3, nozzle 4, and peristaltic pump 5 can be used to collect pathogens from the air. It has a simple structure, small size, and is easy to carry and use in different environments. In addition, since the pathogen sampling device of this application only combines the liquid receiving part 1, sampling container 2, hose 3, nozzle 4, and peristaltic pump 5 during actual use, the liquid receiving part 1, sampling container 2, hose 3, and nozzle 4 can all be disposable consumables. Therefore, when used in different environments, there is no problem of pathogens from the previous environment mixing into the sampling liquid used to collect airborne pathogens in the current environment, avoiding inaccurate sampling results and ensuring high accuracy of subsequent pathogen component analysis results.

[0043] In this embodiment, the nozzle 4 is detachably connected to the liquid receiving component 1, thereby ensuring that the nozzle 4 can be stably positioned when spraying the sampling liquid, thus ensuring the smooth progress of pathogen collection.

[0044] It should be noted that the nozzle 4 has multiple spray holes at the spray end, and the nozzle 4 sprays out the sampling liquid in a divergent manner. The advantage of this method is that the sampling liquid can come into full contact with the air, thereby collecting as many pathogen samples as possible.

[0045] In this embodiment, during actual use, the liquid receiving component 1 is placed horizontally, with the opening of the liquid receiving tank 101 facing upwards. The liquid receiving component 1 has a vertically penetrating connecting hole 102 located on the bottom surface of the liquid receiving tank 101. The nozzle 4 is inserted into the connecting hole 102, and the flexible hose 3 is used to connect to one end of the nozzle 4 inserted into the connecting hole 102. In practical applications, the nozzle 4 sprays the sampling liquid upwards. Thus, the sampling liquid sprayed by the nozzle 4 can fall directly back into the liquid receiving tank 101 after contacting the air, which can reduce the loss of the sampling liquid and ensure the smooth progress of pathogen collection.

[0046] It should be noted that, in this embodiment, the vertical direction refers to... Figure 1 The view shown is from top to bottom.

[0047] For example, the nozzle 4 is connected to the wall of the connecting hole 102 by a threaded connection. In other embodiments, the nozzle 4 can also be connected to the liquid receiving component 1 by an interference fit into the connecting hole 102. This application does not limit this.

[0048] In this embodiment, the liquid receiving component 1 includes a liquid receiving body 11 and a connecting column 12. The liquid receiving body 11 has a liquid receiving groove 101 and a connecting hole 102. The connecting column 12 is connected to the bottom surface of the liquid receiving body 11, and the axis of the connecting column 12 extends vertically. The connecting column 12 has a return hole 103 that passes through its axis and communicates with the liquid receiving groove 101. The sampling container 2 includes a container body 21, a first connecting tube 22, and a connecting cap 23. The container body 21 has a receiving cavity 201. One end of the first connecting tube 22 along its length is connected to the container body 21, and the inner hole of the first connecting tube 22 communicates with the receiving cavity 201. The other end of the first connecting tube 22 along its length is detachably connected to the connecting cap 23, and the connecting cap 23 seals the inner hole of the first connecting tube 22. The first connecting tube 22 is used to connect with the connecting column 12. When the first connecting tube 22 is connected to the connecting column 12, The reflux hole 103 connects the receiving cavity 201 and the liquid receiving tank 101 through the inner hole of the first connecting pipe 22. Specifically, in actual use, the pathogen sampling device first removes the connecting cover 23 from the first connecting pipe 22, and then connects the first connecting pipe 22 to the connecting column 12. At this time, the liquid receiving tank 101, the reflux hole 103, the inner hole of the first connecting pipe 22, and the receiving cavity 201 are connected. The advantage of this structure is that the sampling liquid sprayed by the nozzle 4 falls back into the liquid receiving tank 101 and then flows back into the receiving cavity 201 through the reflux hole 103 and the inner hole of the first connecting pipe 22. Thus, the continuous operation of the peristaltic pump 5 allows the sampling liquid to continuously undergo the above process until the peristaltic pump 5 stops working. Based on this, the sampling liquid can repeatedly collect pathogens in the air. By controlling the working time of the peristaltic pump 5, a sufficient concentration of pathogens can be collected, which is beneficial for subsequent pathogen component analysis.

[0049] Furthermore, the bottom surface of the liquid receiving tank 101 is an annular slope 1011 surrounding the return hole 103. The annular slope 1011 serves as a guide, enabling the sampling liquid in the liquid receiving tank 101 to flow smoothly back into the receiving cavity 201 of the sampling container 2.

[0050] In this embodiment, the outer wall surface of the connecting column 12 is provided with external threads, and the hole wall surface of the first connecting pipe 22 is provided with internal threads. The external threads are used to connect with the internal threads. That is, the connection method between the connecting column 12 and the first connecting pipe 22 is a threaded connection, which has a simple structure, is easy to install, and has high connection stability.

[0051] In this embodiment, the sampling container 2 further includes a second connecting tube 24 and a sealing component 25. One end of the second connecting tube 24 along its length is connected to the container body 21, and the inner hole of the second connecting tube 24 communicates with the receiving cavity 201. The other end of the second connecting tube 24 along its length is connected to the sealing component 25, and the sealing component 25 seals the inner hole of the second connecting tube 24. The sealing component 25 ensures that the sampling container 2 remains sealed when not in use, preventing leakage. In actual use, the hose 3 is connected to the second connecting tube 24 to communicate with the receiving cavity 201 through the inner hole of the second connecting tube 24. The structure is simple and easy to use.

[0052] In some embodiments, the sealing component 25 can be detachably connected to the second connecting pipe 24. Thus, when the hose 3 is connected to the second connecting pipe 24, the sealing component 25 is removed first and then the hose 3 is connected to the second connecting pipe 24.

[0053] In this embodiment, the sealing assembly 25 includes a sealing gasket 251 and a fixing cap 252. The sealing gasket 251 is connected to the end face of the second connecting tube 24 facing away from the container body 21 and covers the inner hole of the second connecting tube 24. The fixing cap 252 is connected to the second connecting tube 24 to fix the sealing gasket 251. When the hose 3 is connected to the second connecting tube 24, the hose 3 passes through the fixing cap 252 and the sealing gasket 251. The sealing gasket 251 abuts against the outer peripheral wall of the hose 3. At this time, the sealing gasket 251 plays a sealing role and can prevent the collected liquid from leaking from the second connecting tube 24. The advantage of this structure is that the structure of the sampling container 2 is simple, the hose 3 is easy to connect to the second connecting tube 24, and since the collected liquid will not leak from the second connecting tube 24 after the hose 3 is connected to the second connecting tube 24, the second connecting tube 24 can be set at the lower part of the container body 21. For example, the second connecting tube 24 is set at the lower end of the container body 21 and located on the peripheral side wall of the container body 21, which is beneficial to the output of the sampled liquid.

[0054] In this embodiment, the hose 3 includes a tube body 31, a first straight connector 32, and a second straight connector 33. The first straight connector 32 and the second straight connector 33 are respectively connected to the two ends of the tube body 31 along its length. In actual use, the pump head of the peristaltic pump 5 is connected to the tube body 31, the first straight connector 32 is connected to the nozzle 4, and the second straight connector 33 is connected to the second connecting pipe 24. The second straight connector 33 is provided with a fixing cap 252 and a sealing gasket 251. The sealing gasket 251 abuts against the outer peripheral wall of the second straight connector 33. Specifically, the nozzle 4 and the tube body 31 are connected through the first straight connector 32, which has a simple structure, is easy to connect, and has high stability. The second straight connector 33 is used to connect the second connecting pipe 24 and the tube body 31, which allows the second straight connector 33 to easily penetrate the sealing gasket 251, resulting in a simple structure, easy connection, and high stability.

[0055] In this embodiment, the pathogen sampling device further includes a placement seat 6, which has a first mounting cavity 601, a second mounting cavity 602, and a limiting groove 603. The limiting groove 603 is disposed on the top surface of the placement seat 6. The first mounting cavity 601 and the second mounting cavity 602 are spaced apart within the placement seat 6, and the first mounting cavity 601 is disposed below the limiting groove 603. The bottom surface of the limiting groove 603 is provided with a first clearance hole 604 and a second clearance hole 605 penetrating vertically. 4. The second clearance holes 605 are all connected to the first mounting cavity 601. In actual use, the liquid receiving body 11 is placed in the limiting groove 603, and the connecting post 12 passes through the first clearance hole 604. Based on the setting of the limiting groove 603, the liquid receiving body 11 can be placed stably, which can prevent the liquid receiving body 11 from tipping over, which is conducive to the smooth progress of pathogen sampling. The first mounting cavity 601 has an opening 6011 extending to the front side of the placement seat 6. In actual use, the sampling container 2 is accommodated in the first mounting cavity 601. Inside cavity 601, the first connecting tube 22 is connected to the connecting post 12 passing through the first clearance hole 604. The first straight connector 32 of the hose 3 is housed in the first mounting cavity 601 and passes through the second clearance hole 605 to connect with the nozzle 4. Specifically, the first mounting cavity 601 can protect the sampling container 2 and ensure that pathogen sampling can be carried out smoothly. The opening 6011 facilitates the connection between the sampling container 2 and the connecting post 12, and facilitates the connection between the hose 3 and the nozzle 4 and the sampling container 2. The cavity wall of the second mounting cavity 602 is provided with a third clearance hole 606 that extends to the front side of the placement seat 6. The peristaltic pump 5 is connected in the second mounting cavity 602, and at least part of the pump head of the peristaltic pump 5 is located in the third clearance hole 606. This facilitates the connection of the tube body 31 to the pump head. Specifically, based on the setting of the placement seat 6, when pathogen sampling is carried out, the liquid receiving part 1, the sampling container 2, the hose 3, the nozzle 4 and the peristaltic pump 5 can all be stably placed, which can ensure that pathogen sampling is carried out smoothly.

[0056] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pathogen sampling device, characterized in that, It includes a liquid receiving component (1), a sampling container (2), a hose (3), a nozzle (4), and a peristaltic pump (5); The liquid receiving component (1) has a liquid receiving tank (101); The sampling container (2) has a receiving cavity (201) for storing the sampling liquid; One end of the hose (3) along its length is used to connect to the sampling container (2), and the other end is used to connect to the nozzle (4) to connect the receiving cavity (201) and the nozzle (4); The pump head of the peristaltic pump (5) is used to connect to the hose (3), and the peristaltic pump (5) is used to squeeze the hose (3) so that the hose (3) delivers the sampling liquid in the receiving cavity (201) to the nozzle (4); The nozzle (4) is used to spray the sampling liquid into the air, and the liquid receiving tank (101) is used to receive the sampling liquid sprayed out by the nozzle (4).

2. The pathogen sampling device according to claim 1, characterized in that, The nozzle (4) is detachably connected to the liquid receiving part (1).

3. The pathogen sampling device according to claim 2, characterized in that, The opening of the liquid receiving tank (101) faces upward; The liquid receiving component (1) has a connecting hole (102) that extends vertically through the liquid receiving tank (101) on the bottom surface of the tank. The nozzle (4) is inserted into the connection hole (102), the hose (3) is used to connect to one end of the nozzle (4) inserted into the connection hole (102), and the nozzle (4) is used to spray the sampling liquid upward.

4. The pathogen sampling device according to claim 3, characterized in that, The liquid receiving component (1) includes a liquid receiving body (11) and a connecting post (12), wherein the liquid receiving body (11) has the liquid receiving groove (101) and the connecting hole (102); The connecting column (12) is connected to the bottom surface of the liquid receiving body (11). The axis of the connecting column (12) extends in the vertical direction. The connecting column (12) has a return hole (103) that is disposed through it along its axis. The return hole (103) is connected to the liquid receiving tank (101). The sampling container (2) includes a container body (21), a first connecting tube (22), and a connecting cap (23). The container body (21) has the receiving cavity (201). One end of the first connecting tube (22) along its length is connected to the container body (21), and the inner hole of the first connecting tube (22) communicates with the receiving cavity (201). The other end of the first connecting tube (22) along its length is detachably connected to the connecting cap (23), and the connecting cap (23) seals the inner hole of the first connecting tube (22). The first connecting tube (22) is used to connect to the connecting post (12). When the first connecting pipe (22) is connected to the connecting column (12), the return hole (103) communicates with the receiving cavity (201) and the liquid receiving tank (101) through the inner hole of the first connecting pipe (22).

5. The pathogen sampling device according to claim 4, characterized in that, The bottom surface of the liquid receiving tank (101) is an annular slope (1011) surrounding the return hole (103).

6. The pathogen sampling device according to claim 4, characterized in that, The outer wall of the connecting column (12) is provided with an external thread, and the hole wall of the first connecting pipe (22) is provided with an internal thread. The external thread is used to connect with the internal thread.

7. The pathogen sampling device according to claim 4, characterized in that, The sampling container (2) further includes a second connecting tube (24) and a sealing assembly (25). One end of the second connecting tube (24) along its length is connected to the container body (21), and the inner hole of the second connecting tube (24) communicates with the receiving cavity (201). The other end of the second connecting tube (24) along its length is connected to the sealing assembly (25), and the sealing assembly (25) seals the inner hole of the second connecting tube (24). The flexible tube (3) is used to connect to the second connecting tube (24) so ​​as to communicate with the receiving cavity (201) through the inner hole of the second connecting tube (24).

8. The pathogen sampling device according to claim 7, characterized in that, The sealing assembly (25) includes a sealing gasket (251) and a fixing cap (252). The sealing gasket (251) is connected to the end face of the second connecting tube (24) facing away from the container body (21) and covers the inner hole of the second connecting tube (24). The fixing cap (252) is connected to the second connecting tube (24) to fix the sealing gasket (251). When the hose (3) is connected to the second connecting pipe (24), the hose (3) passes through the fixing cap (252) and the sealing gasket (251), and the sealing gasket (251) abuts against the outer peripheral wall of the hose (3).

9. The pathogen sampling device according to claim 8, characterized in that, The hose (3) includes a tube body (31), a first straight connector (32) and a second straight connector (33). The first straight connector (32) and the second straight connector (33) are respectively connected to the two ends of the tube body (31) along its length. The tube body (31) is used to connect to the pump head of the peristaltic pump (5). The first straight connector (32) is used to connect to the nozzle (4). The second straight connector (33) is used to connect to the second connecting pipe (24). When the second straight connector (33) is connected to the second connecting pipe (24), the second straight connector (33) passes through the fixing cover (252) and the sealing gasket (251), and the sealing gasket (251) abuts against the outer peripheral wall of the second straight connector (33).

10. The pathogen sampling device according to claim 4, characterized in that, The pathogen sampling device further includes a placement seat (6), which has a first mounting cavity (601), a second mounting cavity (602), and a limiting groove (603). The limiting groove (603) is disposed on the top surface of the placement seat (6). The first mounting cavity (601) and the second mounting cavity (602) are disposed at intervals within the placement seat (6), and the first mounting cavity (601) is disposed below the limiting groove (603). The bottom surface of the limiting groove (603) is provided with a first clearance hole (604) and a second clearance hole (605) that penetrate vertically. The first clearance hole (604) and the second clearance hole (605) are both connected to the first mounting cavity (601). The limiting groove (603) is used to accommodate the liquid receiving body (11). The first clearance hole (604) is used for the connecting column (12) to pass through. The second clearance hole (605) is used for the hose (3) to pass through to connect the nozzle (4). The first mounting cavity (601) has an opening (6011) extending to the front side of the placement seat (6), and the first mounting cavity (601) is used to accommodate the sampling container (2); The cavity wall of the second mounting cavity (602) is provided with a third clearance hole (606) that extends through to the front side of the placement seat (6); The peristaltic pump (5) is connected to the second mounting cavity (602), and at least a portion of the pump head of the peristaltic pump (5) is disposed in the third clearance hole (606).

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