Portable microorganism enrichment device

Abstract

The utility model relates to the technical field of sampling detection, in particular to a portable microorganism enrichment device which comprises a box body, a sample filtering assembly, a liquid collecting tank, micro pump equipment and a drying bottle are integrated in an inner cavity of the box body, and the bottom end of the sample filtering assembly is communicated with the liquid collecting tank through a water pipe. The drying bottle is connected with the liquid collecting tank and the micro pump device through air pipes, and the surface of the liquid collecting tank is connected with a drainage pipe with a valve. When target microorganisms in a water body are enriched, sample liquid only needs to be injected from the liquid inlet pipe, and the equipment can perform two-stage filtration through the plankton net and the water system microfiltration membrane, so that the concentration of the enriched microorganisms is improved, and the accuracy of later characteristic identification is improved; a compact integrated design is adopted in the structure of the device, so that a worker can conveniently carry the device; meanwhile, the filtrate is regularly discharged through a drainage pipe with a valve below, so that the stable operation of the device is effectively guaranteed, and the operation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of sampling and detection technology, specifically to a portable microbial enrichment device. Background Technology

[0002] Currently, with the acceleration of industrialization and urbanization, my country's aquatic resources are facing numerous severe challenges, including increasingly serious pollution, continuous ecological degradation, and rising health risks. Among these, pathogenic microorganisms in the aquatic environment pose a significant threat to the stability of the ecosystem and public health.

[0003] Currently, the conventional method for detecting pathogenic microorganisms in water bodies involves collecting water samples, culturing and identifying them in a laboratory. However, this process is usually time-consuming. In contrast, the ability to rapidly detect pathogenic microorganisms in water bodies and quickly identify them to block their spread in real time is particularly important during outbreaks. With the continuous development of polymerase chain reaction (PCR) technology, identification using the characteristic genes of pathogenic microorganisms is no longer difficult. However, to achieve accurate detection, suitable equipment is still needed to collect pathogenic microorganisms in water bodies and enrich them to the necessary concentrations to ensure the accuracy and reliability of the test results.

[0004] However, current waterborne pathogen enrichment equipment has the following problems:

[0005] 1. When collecting target microorganisms, existing filtration methods cannot effectively remove impurities and larger microorganisms (zooplankton and phytoplankton), which cannot guarantee the high purity of the target microorganisms, making subsequent identification reactions more difficult and increasing the risk of misjudgment;

[0006] 2. Due to its structural layout, the previous equipment was inconvenient to carry to various water sampling points, making it difficult to carry out water sampling and testing in some remote or hard-to-reach water areas, thus limiting the comprehensiveness and timeliness of the testing. Utility Model Content

[0007] This invention provides a portable microbial enrichment device to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0009] A portable microbial enrichment device includes a housing. The inner cavity of the housing integrates a sample filtration assembly, a liquid collection tank, a micro-pump device, and a drying bottle. The bottom end of the sample filtration assembly is connected to the liquid collection tank via a water pipe. The drying bottle is connected to the liquid collection tank and the micro-pump device via air pipes. A drain pipe with a valve is connected to the surface of the liquid collection tank. A door is hinged to the front end of the housing, a folding plate is movably connected to the rear end, and a handle is installed on the top end. One end of the folding plate is located at the top of the sample filtration assembly and is locked when the door is closed.

[0010] The sample filtration assembly includes a lower port seat installed inside the housing, a connecting pipe hinged to the lower port seat, an upper port seat fixedly connected to the top of the connecting pipe, and an inlet pipe hinged to the upper port seat. The lower port seat and the upper port seat are respectively provided with grid support plates for placing the membrane structure, and the lower port seat and the connecting pipe, as well as the upper port seat and the inlet pipe, are detachably connected by spring buckles.

[0011] Preferably, the inner wall of the box is connected to a pair of supports, the lower port seat is fixedly installed on the supports, and the lower port seat is connected to the liquid receiving tank through a water pipe.

[0012] Preferably, the folding plate includes a vertical section hinged to the box body and a horizontal section movably connected to one end of the vertical section. One end of the horizontal section is fixedly connected to an outer positioning plate. The inner wall of the box body is fixedly connected to an inner positioning plate adapted to the outer positioning plate. The surface of the door body is fixedly connected to positioning posts for inserting into the outer positioning plate and the inner positioning plate.

[0013] Preferably, the inner wall of the box is fixedly connected to two symmetrically arranged limiting baffles, and a stabilizing area is provided between one side of the limiting baffle and the rear end face of the box, and the vertical section is arranged within the stabilizing area.

[0014] Preferably, a stepped circular hole is provided through the surface of the transverse section, the stepped circular hole is located at the top of the liquid inlet pipe, and a sealing cap for sealing the top port of the liquid inlet pipe is provided in the stepped circular hole.

[0015] Preferably, the liquid receiving tank is made of transparent material, and the surface of the door is provided with a transparent window, the position of which corresponds to the position of the liquid receiving tank.

[0016] Preferably, the inner cavity of the housing is provided with a battery unit for powering the micro-pump device and a storage drawer for storing the planktonic net and filter membrane, and the outer wall of the housing is embedded with a charging port for replenishing the battery unit with power.

[0017] Preferably, the drying bottle is provided with a partition and a drying element. The inner cavity of the drying bottle is divided into a first cavity and a second cavity that are interconnected by the partition. The first cavity is connected to the inner cavity of the liquid receiving tank through an air pipe, and the second cavity is connected to the micro pump device through an air pipe.

[0018] Preferably, an operating port is provided through the surface of the door, and the operating port corresponds to the micro pump device.

[0019] Preferably, a lock is fixedly installed on the door, and a lock groove for matching the lock is provided on the inner wall of the box.

[0020] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0021] In this invention, the sample liquid is introduced into the inlet tube, where it first flows through the planktonic mesh in the upper port seat for filtration, effectively filtering impurities and larger microorganisms from the water sample. Then, it flows into the lower port seat for secondary filtration via a microporous water filter membrane, ensuring high purity of the target microorganisms (bacteria or viruses) collected on the membrane. This lays a solid foundation for subsequent identification of the target microorganisms and effectively improves the accuracy of the identification results.

[0022] In this invention, the sample filtration assembly, liquid collection tank, micro pump device and drying bottle are integrated and installed in the box to form a compact and orderly layout. When the door is closed, the staff can carry the device with the help of the handle, which greatly reduces the workload.

[0023] In this invention, the liquid in the collection tank can be discharged by the operator manually opening the valve on the drain pipe with valve, thereby avoiding the problem of excessive liquid affecting the operation of the device and effectively ensuring the long-term stable operation of the device. Moreover, this operation eliminates the cumbersome process of manually pouring out the liquid, greatly saving processing time and is simple and efficient.

[0024] In summary, when enriching target microorganisms (bacteria, viruses) in water, this invention only requires injecting the sample liquid through the inlet pipe. The device uses a first-layer plankton net to filter out larger phytoplankton and animals in the water, and then uses a second-layer microporous membrane to collect the target microorganisms. This effectively increases the abundance of target microorganisms and improves the accuracy of subsequent characteristic identification. Furthermore, the device adopts a compact and integrated design, making it easy for staff to handle. At the same time, the filtrate is periodically discharged through a drain pipe with a valve at the bottom, effectively ensuring the stable operation of the device and improving operational convenience, thus possessing considerable practicality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the door opening structure of this utility model.

[0027] Figure 3 This is a schematic diagram of the door structure after it is opened according to this utility model.

[0028] Figure 4 This is a partial cross-sectional structural diagram of the present invention.

[0029] Figure 5 This is a schematic diagram of the liquid inlet tube of this utility model when it is open.

[0030] Figure 6 This is a schematic diagram of the opening of the connecting tube of this utility model.

[0031] Figure 7 This is a cross-sectional structural diagram of the sample filtering component of this utility model.

[0032] Figure 8 This is a schematic cross-sectional view of the drying bottle of this utility model.

[0033] In the diagram: 1. Box body;

[0034] 2. Sample filtration assembly; 201. Lower port seat; 202. Connecting tube; 203. Upper port seat; 204. Liquid inlet tube;

[0035] 3. Liquid receiving tank; 4. Micro pump equipment; 5. Drying bottle; 6. Drain pipe with valve; 7. Door; 8. Folding plate; 81. Vertical section; 82. Horizontal section; 83. Outer positioning plate; 9. Handle; 10. Grid support plate; 11. Support; 12. Inner positioning plate; 13. Positioning post; 14. Limiting baffle; 15. Stepped round hole; 16. Sealing cover; 17. Transparent window; 18. Battery unit; 19. Storage drawer; 20. Charging port; 21. Divider; 22. Drying component; 23. Operating port; 24. Lock; 25. Lock groove. Detailed Implementation

[0036] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0038] like Figures 1-8 As shown, this utility model provides a portable microbial enrichment device, including a housing 1. A heat dissipation vent is provided on the rear end face of the housing 1 to ensure stable operation of the device. The inner cavity of the housing 1 integrates a sample filtration assembly 2, a collection tank 3, a micro-pump device 4, and a drying bottle 5. The inner cavity of the housing 1 has multiple spatial chambers. The collection tank 3 is located in the bottom spatial chamber, the sample filtration assembly 2 is located in the left spatial chamber above the bottom spatial chamber, and the micro-pump device 4 is located in the right spatial chamber above the bottom spatial chamber. The bottom end of the sample filtration assembly 2 is connected to the collection tank 3 via a water pipe. The drying bottle 5 is connected to the collection tank 3 and the micro-pump device 4 via air pipes. The opening of the collection tank 3 is detachably connected to... The container has a cover, with water pipes and air pipes connected to the cover. The surface of the liquid collection tank 3 is connected to a drain pipe 6 with a valve. One end of the drain pipe 6 with a valve has a shut-off port on the surface of the container 1, so that the operator can open or close the valve on the drain pipe 6 with the valve through the shut-off port to achieve communication between the inner cavity of the liquid collection tank 3 and the outside. When the valve on the drain pipe 6 with the valve is closed, the drain outlet on the liquid collection tank 3 is in a sealed state, which effectively avoids the problem of the micro pump device 4 failing to evacuate the inner cavity of the liquid collection tank 3. The front end of the container 1 is hinged to a door 7, the rear end is movably connected to a folding plate 8, and the top end is installed with a handle 9. One end of the folding plate 8 is set at the top of the sample filter assembly 2 and is locked when the door 7 is closed.

[0039] The sample filtration assembly 2 includes a lower port seat 201 installed inside the housing 1, a connecting pipe 202 hinged to the lower port seat 201, an upper port seat 203 fixedly connected to the top of the connecting pipe 202, and an inlet pipe 204 hinged to the upper port seat 203. The lower port seat 201 and the upper port seat 203 are each provided with a grid support plate 10 for placing the membrane structure. The lower port seat 201 and the connecting pipe 202, and the upper port seat 203 and the inlet pipe 204 are respectively connected by spring latches. Regarding the connection, the spring-loaded buckle is a publicly available technology already used in various fields, and will not be elaborated upon further in this paper. The bottom ports of the connecting pipe 202 and the inlet pipe 204 are respectively provided with protruding sealing flexible rings. These sealing flexible rings can contact the surface of the grid support plate 10 when the connecting pipe 202 or the inlet pipe 204 is closed, thereby providing a pressing and fixing effect on the membrane structure placed on the grid support plate 10. It is worth noting that the membrane structure proposed in this solution is a circular shape adapted to the grid support plate 10. It is also worth noting that the membrane structure can be a planktonic network or a water-based microporous filter membrane.

[0040] Furthermore, the liquid receiving tank 3 is made of transparent material, and the surface of the door 7 is provided with a transparent window 17. The position of the transparent window 17 corresponds to the position of the liquid receiving tank 3. The transparent material design of the liquid receiving tank 3 makes it easy for staff to clearly observe the liquid condition inside the liquid receiving tank 3, so as to drain the liquid receiving tank 3 regularly and prevent the problem of excessive water affecting its use. At the same time, the liquid discharge inside the liquid receiving tank 3 is achieved by means of a drain pipe 6 with a valve, eliminating the cumbersome process of manually pouring out the liquid and greatly saving processing time.

[0041] Combination Figure 2 , Figure 6 and Figure 7 As shown, as a further step, a pair of supports 11 are connected to the inner wall of the box 1. The supports 11 are stepped arc-shaped parts, which facilitates the placement of the lower port seat 201 on the supports 11. The lower port seat 201 is fixedly installed on the supports 11. The supports 11 have slots. The lower port seat 201 is fixedly installed on the supports 11 by bolt positioning parts. The lower port seat 201 is connected to the liquid receiving tank 3 through a water pipe. Through the design of the supports 11, a certain distance is maintained between the lower port seat 201 and the inner wall of the box 1. This distance is used to reserve working space for the connector at one end of the water supply pipe.

[0042] Combination Figure 3 , Figure 4 and Figure 5 As shown, as a further step, the folding plate 8 includes a vertical section 81 hinged to the box body 1 and a horizontal section 82 movably connected to one end of the vertical section 81. One end of the horizontal section 82 is fixedly connected to an outer positioning plate 83. An inner positioning plate 12 adapted to the outer positioning plate 83 is fixedly connected to the inner wall of the box body 1. A positioning post 13 for inserting into the outer positioning plate 83 and the inner positioning plate 12 is fixedly connected to the surface of the door body 7.

[0043] Specifically, the inner positioning plate 12 serves two purposes: firstly, it supports the transverse section 82, and secondly, it ensures that the outer positioning plate 83 on the transverse section 82 fits into the inner positioning plate 12, guaranteeing that the through holes on the surface of the inner positioning plate 12 and the through holes on the surface of the outer positioning plate 83 are concentrically aligned. This ensures that when the door 7 is closed, the positioning post 13 can be inserted into the through holes of both, effectively limiting the transverse section 82 and ensuring its integrity during carrying.

[0044] The transverse section 82 has a stepped circular hole 15 through it. The stepped circular hole 15 is located at the top of the liquid inlet pipe 204, and a sealing cap 16 for sealing the top port of the liquid inlet pipe 204 is provided inside the stepped circular hole 15. The design of the sealing cap 16 to seal the port of the liquid inlet pipe 204 allows the sealing cap 16 to effectively prevent dust from entering the sample filter assembly 2 when the device is not in use.

[0045] It is worth noting that a gap is reserved between the top end of the liquid inlet pipe 204 and the transverse section 82. This design prevents the two from affecting each other when the transverse section 82 is folded.

[0046] As a further step, two symmetrically arranged limiting baffles 14 are fixedly connected to the inner wall of the box body 1. A stabilizing area is provided between one side of the limiting baffle 14 and the rear end face of the box body 1. The vertical section 81 is set in the stabilizing area. The design of the two limiting baffles 14 enables the limiting baffles 14 to limit the vertical section 81, prevent the vertical section 81 from deviating inward, and effectively ensure the stability of the folding plate 8.

[0047] As a further step, the inner cavity of the housing 1 is equipped with a battery unit 18 for powering the micro-pump device 4 and a storage drawer 19 for storing the plankton net and filter membrane. The outer wall of the housing 1 is fitted with a charging port 20 for replenishing power to the battery unit 18. The battery unit 18 is a lithium battery, and the charging port 20 is equipped with a dust cover. It is worth noting that the battery unit 18 and charging port 20 used in this device are both existing publicly available technologies that have been widely applied in various fields. This document will not elaborate on these technologies further, and although this solution does not provide a detailed description, these technologies are already familiar to those skilled in the art based on their basic knowledge and can be applied accordingly.

[0048] As a further step, the drying bottle 5 is provided with a partition 21 and a drying element 22. The inner cavity of the drying bottle 5 is divided into a first cavity and a second cavity that are interconnected by the partition 21. The first cavity is connected to the inner cavity of the liquid receiving tank 3 through a gas pipe, and the second cavity is connected to the micro pump device 4 through a gas pipe. The drying element 22 can be silica gel. With the adsorption capacity of the silica gel, it can adsorb water vapor molecules in the water pipe, thereby achieving the purpose of drying water vapor in the gas and protecting the micro pump device 4.

[0049] As a further step, an operation port 23 is provided through the surface of the door 7. The operation port 23 corresponds to the micro pump device 4. The design of the operation port 23 allows the staff to still operate the micro pump device 4 when the door 7 is closed. It is worth noting that the micro pump device 4 in this solution includes, but is not limited to, diaphragm pumps and peristaltic pumps. As the preferred option, the micro pump device 4 in this solution is a peristaltic pump because its structure is relatively simple, its size is small and its weight is light, making it easy to integrate into the portable device of this solution, and better meeting the strict requirements of portable devices for size and weight.

[0050] As a further step, a lock 24 is fixedly installed on the door 7, and a lock groove 25 for matching the lock 24 is opened on the inner wall of the housing 1. The lock 24 is an eccentric rotary lock, and a locking pin is provided on the inner wall of the lock groove 25 for engaging with the eccentric rotary lock. Thus, when the lock 24 enters the lock groove 25 and engages with the locking pin, the positioning pin 13 can be inserted into the outer positioning plate 83 and the inner positioning plate 12 to ensure that the folding plate 8 cannot be opened when the door 7 is closed, effectively enhancing the security performance.

[0051] Working principle and usage process of this utility model:

[0052] Before use, staff can easily carry the enrichment device to a specific area using handle 9, then open door 7 with the appropriate key, and then open the folding plate 8. Next, they can sequentially open the spring latches between the lower port seat 201 and the connecting pipe 202, and between the upper port seat 203 and the inlet pipe 204. With the inlet pipe 204 and the connecting pipe 202 open, staff can place the membrane structure on the corresponding grid support plate 10. The closing of the connecting pipe 202 and the inlet pipe 204 provides edge stabilization for the membrane structure. Finally, the valve on the drain pipe 6 with valve is closed, isolating the inner cavity of the collection tank 3 from the outside environment and preventing the interaction of internal and external fluids. It is worth noting that a water-based microporous filter membrane is placed on the grid support plate 10 inside the lower port seat 201, while a planktonic net is placed on the grid support plate 10 inside the upper port seat 203.

[0053] During use, when enriching target microorganisms (bacteria, viruses) in water, the micro-pump device 4 is activated to evacuate the inner cavity of the collection tank 3. At the same time, the staff puts the sample liquid into the inlet pipe 204 with the sealing cap 16 opened. The sample liquid first flows through the plankton net in the upper port seat 203 for filtration, achieving the effect of filtering impurities and plankton in the sample liquid. After the first filtration, the sample liquid flows into the water-based microporous filter membrane in the lower port seat 201 for secondary filtration, ensuring that the target microorganisms (bacteria or viruses) with high purity can be collected on the water-based microporous filter membrane. This lays a good foundation for the subsequent identification of target microorganisms and effectively improves the accuracy of the identification results.

[0054] During use, when there is a large amount of liquid in the liquid receiving tank 3, the operator can manually open the valve on the drain pipe 6 with valve to allow the liquid in the liquid receiving tank 3 to be discharged. This operation is simple and efficient, and can avoid the problem of excessive liquid affecting the operation of the device, effectively ensuring the long-term stable operation of the device.

[0055] It should be noted that the handle 9 on the top of the box 1 has a certain function in terms of its position. Since most of the heavier components are concentrated on one side of the box 1, the position of the handle 9 can effectively adjust the center of gravity, making it easier for staff to maintain overall balance when carrying the device, reducing the burden of force and lowering the risk of imbalance during carrying.

[0056] In this invention, the term "plural" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0058] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which 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.

[0059] 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 portable microbial enrichment device, characterized in that, The box includes a housing (1), the inner cavity of which integrates a sample filter assembly (2), a liquid collection tank (3), a micro pump device (4) and a drying bottle (5). The bottom end of the sample filter assembly (2) is connected to the liquid collection tank (3) through a water pipe. The drying bottle (5) is connected to the liquid collection tank (3) and the micro pump device (4) through an air pipe. The surface of the liquid collection tank (3) is connected to a drain pipe (6) with a valve. A door (7) is hinged on the front end of the housing (1), a folding plate (8) is movably connected on the rear end, and a handle (9) is installed on the top end. One end of the folding plate (8) is located at the top of the sample filter assembly (2) and is locked when the door (7) is closed. The sample filtration assembly (2) includes a lower port seat (201) installed in the housing (1), a connecting pipe (202) hinged to the lower port seat (201), an upper port seat (203) fixedly connected to the top of the connecting pipe (202), and an inlet pipe (204) hinged to the upper port seat (203). The lower port seat (201) and the upper port seat (203) are respectively provided with grid support plates (10) for placing the membrane structure. The lower port seat (201) and the connecting pipe (202) and the upper port seat (203) and the inlet pipe (204) are respectively detachably connected by spring buckles.

2. The portable microbial enrichment device according to claim 1, characterized in that, The inner wall of the box (1) is connected to a pair of supports (11), the lower port seat (201) is fixedly installed on the supports (11), and the lower port seat (201) is connected to the liquid receiving tank (3) through a water pipe.

3. The portable microbial enrichment device according to claim 1, characterized in that, The folding plate (8) includes a vertical section (81) hinged to the box body (1) and a horizontal section (82) movably connected to one end of the vertical section (81). One end of the horizontal section (82) is fixedly connected to an outer positioning plate (83). The inner wall of the box body (1) is fixedly connected to an inner positioning plate (12) adapted to the outer positioning plate (83). The surface of the door body (7) is fixedly connected to a positioning post (13) for inserting into the outer positioning plate (83) and the inner positioning plate (12).

4. The portable microbial enrichment device according to claim 3, characterized in that, The inner wall of the box (1) is fixedly connected to two symmetrically arranged limiting baffles (14). A stabilizing area is provided between one side of the limiting baffle (14) and the rear end face of the box (1). The vertical section (81) is arranged in the stabilizing area.

5. A portable microbial enrichment device according to claim 3, characterized in that, A stepped circular hole (15) is provided through the surface of the transverse section (82). The stepped circular hole (15) is located at the top of the liquid inlet pipe (204), and a sealing cap (16) for sealing the top port of the liquid inlet pipe (204) is provided inside the stepped circular hole (15).

6. A portable microbial enrichment device according to claim 1, characterized in that, The liquid receiving tank (3) is made of transparent material, and the surface of the door (7) is provided with a transparent window (17), the position of which corresponds to the position of the liquid receiving tank (3).

7. The portable microbial enrichment device according to claim 1, characterized in that, The inner cavity of the housing (1) is provided with a battery unit (18) for powering the micro pump device (4) and a storage drawer (19) for storing plankton nets and filter membranes, and the outer wall of the housing (1) is inlaid with a charging port (20) for replenishing the battery unit (18) with power.

8. A portable microbial enrichment device according to claim 1, characterized in that, The drying bottle (5) is provided with a partition (21) and a drying component (22). The inner cavity of the drying bottle (5) is divided into a first cavity and a second cavity that are interconnected by the partition (21). The first cavity is connected to the inner cavity of the liquid receiving tank (3) through an air pipe, and the second cavity is connected to the micro pump device (4) through an air pipe.

9. A portable microbial enrichment device according to claim 1, characterized in that, An operating port (23) is provided through the surface of the door (7), and the operating port (23) corresponds to the micro pump device (4).

10. A portable microbial enrichment device according to claim 1, characterized in that, A lock (24) is fixedly installed on the door (7), and a lock groove (25) for matching the lock (24) is opened on the inner wall of the box (1).

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