Portable microbial aerosol sampling device

Abstract

The utility model discloses a portable microbial aerosol sampling device, which belongs to the technical field of microbial aerosol sampling devices, and comprises a device main body box, an air inlet pipe is mounted at the top of the device main body box, and the top end of the air inlet pipe is detachably connected with an air inlet hopper; the bottom end of the air inlet pipe extends into the device main body box, a micro sampling pump and a flow meter are sequentially mounted on the air inlet pipe, a nozzle is mounted at the bottom end of the air inlet pipe, and a handle is mounted on one side of the device main body box; a one-way electromagnetic valve is mounted at the top of the sampling bottle. According to the utility model, the micro sampling pump, the flow meter and the one-way electromagnetic valve are arranged, air containing microbial aerosol is sucked in through the micro sampling pump and enters the sampling bottle through the nozzle, immediate and rapid sampling can be realized through the micro sampling pump, the flow can be accurately controlled through the flow meter, and accurate sampling can be realized through the one-way electromagnetic valve; the device is small in overall size and convenient to hold, carry and use.

Description

Technical Field

[0001] This utility model relates to the technical field of microbial aerosol sampling devices, specifically a portable microbial aerosol sampling device. Background Technology

[0002] The biological, physical, and chemical properties of microbial aerosols have a very important impact on respiratory infections. The microbial characteristics contained in aerosols, namely the infectivity and virulence of the microorganisms, are the decisive factors in the consequences of respiratory infections. The infectious dose of different species and strains of microbial aerosols can vary by several orders of magnitude under similar conditions. Therefore, microbial aerosol sampling devices are needed to sample microbial aerosols in the air.

[0003] Currently, some microbial aerosol sampling devices on the market are bulky and inconvenient to carry and use, which limits their application. Therefore, we propose a portable microbial aerosol sampling device to solve the problems mentioned above.

[0004] The information disclosed above in this background section is only for enhancing the understanding of the background section of this invention, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a portable microbial aerosol sampling device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a portable microbial aerosol sampling device, comprising:

[0007] The device has a main body box, an air inlet pipe is installed on the top of the main body box, an air inlet hopper is detachably connected to the top of the air inlet pipe, the bottom of the air inlet pipe extends into the inside of the main body box and a micro sampling pump and a flow meter are installed on the air inlet pipe in sequence, a nozzle is installed at the bottom of the air inlet pipe, and a handle is installed on one side of the main body box.

[0008] A sampling bottle, the top of which is equipped with a one-way solenoid valve, which is connected to the nozzle;

[0009] The control panel, installed on one side of the main body box of the device, is used to control the micro sampling pump, flow meter and one-way solenoid valve.

[0010] Preferably, the air intake hopper is equipped with a filter and a dustproof screen.

[0011] Preferably, the nozzle has a threaded portion on its outer side, and the one-way solenoid valve has a connecting portion on its top that is threadedly engaged with the threaded portion.

[0012] Preferably, a sealing gasket is provided around the nozzle to seal with the connecting part.

[0013] Preferably, the sampling bottle has an exhaust port on one side, a sealing cap is installed on the exhaust port, and a sealing gasket is provided around the exhaust port to seal with the sealing cap.

[0014] Preferably, the bottom of the main body of the device is provided with a guide plate that fits against the outside of the sampling bottle.

[0015] Preferably, the main body of the device is equipped with a battery, and the battery has a charging port.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is equipped with a miniature sampling pump, a flow meter and a one-way solenoid valve. The miniature sampling pump draws in air containing microbial aerosols and enters the sampling bottle through a nozzle. The miniature sampling pump can achieve immediate and rapid sampling, the flow meter can accurately control the flow rate, and the one-way solenoid valve can achieve accurate sampling. The device is small in size and easy to carry and use.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Main unit box; 2. Miniature sampling pump; 3. Flow meter; 4. Inlet pipe; 5. Inlet hopper; 6. Filter screen; 7. Dustproof screen; 8. Nozzle; 801. Threaded part; 9. Sealing gasket one; 10. Sampling bottle; 11. One-way solenoid valve; 1101. Connecting part; 12. Exhaust port; 13. Sealing cap; 14. Sealing gasket two; 15. Guide plate; 16. Battery; 17. Charging port; 18. Control panel; 19. Handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. It should be noted that the drawings are schematic and not illustrated to scale. For clarity and convenience, the relative sizes and proportions of the parts shown in the drawings have been exaggerated or reduced in size. Any size is only illustrative and not limiting.

[0022] Example 1

[0023] Please see Figure 1 - Figure 2 A portable microbial aerosol sampling device includes a main body box 1, a sampling bottle 10, and a control panel 18.

[0024] The main body box 1 of the device is equipped with an air inlet pipe 4 on the top. The top of the air inlet pipe 4 is detachably connected to an air inlet hopper 5. A filter screen 6 and a dustproof screen 7 are installed on the air inlet hopper 5, which can effectively protect the air circuit and the micro sampling pump 2.

[0025] The bottom end of the air inlet pipe 4 extends into the interior of the main body box 1 of the device, and a micro sampling pump 2 and a flow meter 3 are installed on the air inlet pipe 4 in sequence. The micro sampling pump 2 and the flow meter 3 are installed inside the main body box 1 of the device. A nozzle 8 is installed at the bottom end of the air inlet pipe 4, and the nozzle 8 is fixed to the bottom of the main body box 1 of the device. A handle 19 is installed on one side of the main body box 1 of the device.

[0026] A one-way solenoid valve 11 is installed on the top of the sampling bottle 10, and the one-way solenoid valve 11 is connected to the nozzle 8. An exhaust port 12 is opened on one side of the sampling bottle 10, and a sealing cap 13 is installed on the exhaust port 12. A sealing gasket 14 is provided around the exhaust port 12 to seal with the sealing cap 13.

[0027] Specifically, a threaded portion 801 is provided on the outer side of the nozzle 8, and a connecting portion 1101 that is threadedly engaged with the threaded portion 801 is provided on the top of the one-way solenoid valve 11. A sealing gasket 9 that is sealed to the connecting portion 1101 is provided around the nozzle 8.

[0028] The bottom of the main body box 1 of the device is provided with a guide plate 15 that fits against the outside of the sampling bottle 10, so as to facilitate the precise docking of the sampling bottle 10 and the main body box 1 of the device.

[0029] The main body box 1 of the device is equipped with a battery 16, and the battery 16 is connected to a charging port 17.

[0030] The control panel 18 is installed on one side of the main unit box 1 and is used to control the miniature sampling pump 2, flow meter 3, and one-way solenoid valve 11. The control panel 18 has a display screen to show the operating status of the miniature sampling pump 2, flow meter 3, and one-way solenoid valve 11, a power switch, and adjustment buttons for adjusting and controlling the miniature sampling pump 2, flow meter 3, and one-way solenoid valve 11. The one-way solenoid valve 11 is normally open; when the target sampling volume is reached, the miniature sampling pump 2 and the one-way solenoid valve 11 automatically close sequentially. The target sampling volume is set via the flow meter 3.

[0031] The working principle of this embodiment is as follows: When using this portable microbial aerosol sampling device, firstly, turn on the power via the control panel 18, and turn on the micro sampling pump 2 and the one-way solenoid valve 11. Set the target sampling volume or random sampling. The micro sampling pump 2 draws air containing microbial aerosols into the air inlet pipe 4, and then into the sampling bottle 10 through the nozzle 8 and the one-way solenoid valve 11. The flow meter 3 precisely controls the flow rate. After the target sampling volume is reached, the micro sampling pump 2 and the one-way solenoid valve 11 automatically close sequentially. Residual air inside can be emptied by opening the sealing cap 13 and starting the device. The filter 6 and dustproof net 7 effectively protect the air path and the micro sampling pump 2 during device operation. The device is small in size and easy to carry and use with the handle 19.

[0032] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0033] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

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

[0037] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A portable microbial aerosol sampling device, characterized by, Include: The device main body box (1), the air inlet pipe (4) is installed on the top of the device main body box (1), the air inlet pipe (4) top end detachable connection has air inlet hopper (5), the air inlet pipe (4) bottom end extends to the inside of the device main body box (1) and the air inlet pipe (4) is installed with micro sampling pump (2) and flowmeter (3) in proper order, the nozzle (8) is installed on the air inlet pipe (4) bottom end, the handle (19) is installed on one side of the device main body box (1); The sampling bottle (10) is installed with one-way electromagnetic valve (11) on the top, the one-way electromagnetic valve (11) is connected with the nozzle (8); The control panel (18) is installed on one side of the device main body box (1), which is used to control the micro sampling pump (2), flowmeter (3) and one-way electromagnetic valve (11).

2. The portable microbial aerosol sampling device of claim 1, wherein: The filter screen (6) and dust screen (7) are installed on the air inlet hopper (5).

3. The portable microbial aerosol sampling device of claim 1, wherein: The nozzle (8) is provided with a threaded portion (801) outside, and the one-way electromagnetic valve (11) is provided with a connecting portion (1101) on the top, which is screwed with the threaded portion (801).

4. The portable microorganism aerosol sampling device of claim 3, wherein: The nozzle (8) is provided with a sealing gasket one (9) on the side, which is sealed with the connecting portion (1101).

5. The portable microorganism aerosol sampling device of claim 1, wherein: The sampling bottle (10) is provided with an exhaust port (12) on one side, and the exhaust port (12) is provided with a sealing cover (13), and the exhaust port (12) is provided with a sealing gasket two (14) on the side, which is sealed with the sealing cover (13).

6. The portable microorganism aerosol sampling device of claim 1, wherein: The device main body box (1) is provided with a guide plate (15) on the bottom, which is attached to the outside of the sampling bottle (10).

7. The portable microorganism aerosol sampling device of claim 1, wherein: The device main body box (1) is provided with a battery (16), and the battery (16) is matched with a charging port (17).

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