Air planktonic bacteria sampler

Abstract

The utility model provides an air planktonic bacteria sampler which comprises a main machine and a plurality of sampling seats, the main machine and the plurality of sampling seats are respectively provided with an annular table with an extraction opening, an inner cavity of the main machine is provided with a fan communicated with the extraction opening, and the annular tables are detachably provided with trays for placing culture dishes. Each sampling seat is provided with a communicating pipe communicated with the corresponding extraction opening, the annular table is detachably sleeved with an end cover with a plurality of micropores, the annular table located on the main machine is detachably sleeved with a collecting cover with a collecting pipe, and the collecting cover is provided with a communicating assembly used for communicating the communicating pipes; after a fan drives air to vibrate through micropores in an end cover, particles fall into a culture dish to be sampled, the end cover on a main machine is replaced by a collecting cover, and the collecting cover is communicated with a plurality of communicating pipes through a communicating assembly, so that sampling work at multiple positions can be carried out at the same time, the sampling efficiency is improved, sampling can be carried out in multiple narrow spaces, and the sampling efficiency is improved. Multiple sampling working modes are provided, and multiple sampling requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of airborne bacteria sampling technology, specifically to an airborne bacteria sampler. Background Technology

[0002] An airborne microbial sampler is an instrument used to collect airborne microorganisms, primarily for monitoring airborne microbial contamination. It works by drawing in ambient air; particles and bacteria collide with the surface of micropores in a high-speed airflow, thus being captured in an agar culture dish for microbial isolation and cultivation. It is widely used in pharmaceuticals, bioengineering, food and beverage industries, and medical and health fields. The sampling port of the airborne microbial sampler draws in air containing airborne microorganisms through micropores. When dust-laden air passes through the micropores, it impacts the agar surface in the culture dish, and the impacted microbial particles form a culture medium of live microorganisms. However, most current samplers are one-piece structures, occupying a large space, making them unsuitable for sampling in confined spaces. Furthermore, existing samplers typically only allow for sampling one culture dish at a time; when multiple control experiments are needed, repeated sampling operations are often required, resulting in long sampling times and low sampling efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing an airborne bacteria sampler, thereby solving the problems described above.

[0004] This utility model provides an airborne bacteria sampler, including a main unit and several sampling seats. Each main unit and each sampling seat is equipped with an annular platform. The bottom of each annular platform has an air extraction port. The main unit has an internal fan, the air inlet of which is connected to the air extraction port on the main unit. The main unit has several exhaust holes connected to the air outlet of the fan. Each annular platform is detachably equipped with a tray on which a petri dish is placed. An annular vent for gas flow is provided between the tray and the bottom of the annular platform. Each sampling seat has a connecting pipe connected to the air extraction port on that sampling seat. Each annular platform is detachably fitted with an end cap, which has several micropores. A collection cover is detachably fitted on the annular platform located on the main unit. The collection cover has a collection pipe, and the collection pipe has a connecting component for connecting the collection pipe to several connecting pipes and adjusting the connectivity of each connecting pipe.

[0005] Preferably, a plurality of adjusting plates are movable on the tray, and the plurality of adjusting plates abut against the bottom of the annular platform and support the tray to form the annular vent. The upper end of the adjusting plate is provided with a support portion that abuts against the culture dish, and the tray is provided with an adjusting component for adjusting the position of the adjusting plate.

[0006] Preferably, the adjusting assembly includes a bolt and a spring, the tray has a screw hole that mates with the bolt, the adjusting plate has a through hole for the bolt shank to pass through, the spring is sleeved on the outside of the bolt shank, and the spring pushes the adjusting plate to drive the adjusting plate to elastically abut against the bolt head.

[0007] Preferably, the connecting component includes a main body, several branch pipes, and several rubber tubes. The main body is connected to several branch pipes respectively, and each branch pipe is provided with a valve. The rubber tube is sleeved on the main body and the collecting pipe. The rubber tube is sleeved on the several branch pipes and the several connecting pipes respectively.

[0008] Preferably, the collecting pipe, the main pipe, the several branch pipes, and the several connecting pipes are all provided with a protruding ring for the rubber tube to be fitted.

[0009] Preferably, the end cap is provided with a circular groove, a plurality of microholes are provided at the bottom of the groove, and a protective cap is placed in the groove.

[0010] Preferably, the annular platform is provided with a sealing ring, and both the end cap and the collection cap are provided with annular grooves that fit with the sealing ring.

[0011] Preferably, the host computer is equipped with a control panel for controlling the operating status of the fan.

[0012] Preferably, the main unit is provided with a handle.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] For a single routine sampling, the tray and petri dish are mounted on the main unit and the end cap is placed on top. The fan draws air through several micropores on the end cap, and the impact of the air at the micropores collects the microbial particles on the agar surface of the petri dish, completing a single sampling. When sampling in confined spaces or at multiple locations is required, the tray on the main unit is removed, and the end cap is replaced with a collection cap. The collection cap is then connected to several connecting tubes via a connecting component, allowing for simultaneous sampling at multiple locations, thus improving sampling efficiency. Moreover, the sampling stand is much smaller than the main unit, allowing it to be placed in multiple confined spaces for sampling. The connectivity of each connecting tube can be adjusted via the connecting component, providing multiple sampling modes to meet various sampling needs in the laboratory. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the main unit when used with an end cap in one embodiment of the present invention;

[0017] Figure 2 for Figure 1 Internal structure diagram;

[0018] Figure 3 This is a schematic diagram of the structure after opening the end cover and protective cover from the host in one embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the tray structure in one embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the tray and adjustment component in one embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the host unit when used with the collection cover, the connecting component and the sampling seat in one embodiment of the present invention;

[0022] Figure 7 This is a structural schematic diagram of the connecting component in one embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of the internal structure of the main unit when used with the collection cover in one embodiment of the present invention;

[0024] Figure 9This is a schematic diagram of the internal structure of the sampling seat when used with an end cap in one embodiment of this utility model.

[0025] In the diagram, 1-Main unit; 11-Fan; 12-Exhaust port; 13-Control panel; 14-Handle; 2-Sampling seat; 21-Connecting pipe; 3-Annular stage; 31-Exhaust port; 32-Sealing ring; 4-Tray; 41-Annular vent; 42-Adjusting plate; 421-Support; 422-Perforation; 43-Cultural dish; 5-End cap; 51-Micropore; 52-Groove; 53-Protective cap; 6-Collection cap; 61-Collection pipe; 7-Connecting assembly; 71-Main main body; 72-Branch pipe; 721-Valve; 73-Rubber hose; 8-Adjusting assembly; 81-Bolt; 82-Spring; 9-Protruding ring; 10-Annular groove. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0027] Example 1:

[0028] Reference Figures 1 to 9 This utility model provides an airborne bacteria sampler, including a main unit 1 and several sampling seats 2. Each of the main unit 1 and the sampling seats 2 is equipped with a ring-shaped platform 3. The bottom of the ring-shaped platform 3 has an air extraction port 31. A fan 11 is installed inside the main unit 1, and the air inlet of the fan 11 is connected to the air extraction port 31 on the main unit 1. The main unit 1 has several exhaust holes 12 connected to the air outlet of the fan 11. Each ring-shaped platform 3 is detachably equipped with a tray 4, on which a petri dish 43 is placed. A connection is made between the tray 4 and the bottom of the ring-shaped platform 3. There is an annular vent 41 for gas flow. Each sampling seat 2 is provided with a connecting pipe 21 that communicates with the air extraction port 31 on the sampling seat 2. Each annular platform 3 is detachably fitted with an end cap 5, which has several micro holes 51. The annular platform 3 located at the main unit 1 is detachably fitted with a collection cover 6, which has a collection pipe 61. The collection pipe 61 has a connecting component 7, which is used to connect the collection pipe 61 with several connecting pipes 21 and adjust the connectivity of several connecting pipes 21 respectively.

[0029] During a single routine sampling, the tray 4 and petri dish 43 are mounted on the main unit 1 and the end cap 5 is placed on top. The fan 11 draws air through several micro-holes 51 on the end cap 5, and the impact of air at the micro-holes 51 collects microbial particles on the agar surface of the petri dish 43, completing a single sampling operation. When sampling in confined spaces or at multiple locations is required, the tray 4 on the main unit 1 is removed, and the end cap 5 on the main unit 1 is replaced with a collection cap 6. The tray 4, petri dish 43, and end cap 5 are installed at each sampling station 2. The collection cap 6 is connected to several connecting tubes 21 through the connecting component 7, allowing for simultaneous sampling at multiple locations, improving sampling efficiency. Moreover, the sampling station 2 is much smaller than the main unit 1, allowing it to be placed in multiple confined spaces for sampling. The connectivity of each connecting tube 21 can be adjusted through the connecting component 7, providing multiple sampling modes to meet various sampling needs in the laboratory. The fan 11 in this application is a centrifugal fan 11.

[0030] Specifically, several adjusting plates 42 are movable on the tray 4. The adjusting plates 42 abut against the bottom of the annular platform 3 and support the tray 4 to form an annular vent 41. The upper end of the adjusting plate 42 is provided with a support part 421 that abuts against the petri dish 43. The tray 4 is provided with an adjusting component 8 for adjusting the position of the adjusting plate 42.

[0031] Specifically, the adjusting assembly 8 includes a bolt 81 and a spring 82. The tray 4 is provided with a screw hole that mates with the bolt 81. The adjusting plate 42 is provided with a through hole 422 through which the rod of the bolt 81 passes. The spring 82 is sleeved on the outside of the rod of the bolt 81. The spring 82 pushes the adjusting plate 42 to drive the adjusting plate 42 to elastically abut against the head of the bolt 81.

[0032] The radial distance between the adjustment plate 42 and the tray 4 can be adjusted by turning the bolts 81 at each adjustment plate 42 and cooperating with the elastic force of the spring 82. This makes it easy to adjust the position of each adjustment plate 42 according to the different sizes of the petri dishes 43, so as to support and stabilize the petri dishes 43 of different sizes. This makes it suitable for sampling work of petri dishes 43 of various sizes and has good versatility.

[0033] Example 2:

[0034] Reference Figures 1 to 9 In conjunction with the technical solution of Embodiment 1, in this embodiment, the connecting component 7 includes a main body 71, a plurality of branch pipes 72 and a plurality of rubber tubes 73. The main body 71 is connected to the plurality of branch pipes 72 respectively. Each branch pipe 72 is provided with a valve 721. The main body 71 is connected to the collecting pipe 61 and is fitted with a rubber tube 73. The plurality of branch pipes 72 are connected to the plurality of connecting pipes 21 respectively and are fitted with rubber tubes 73.

[0035] The collection tube 61 is connected to the main body 71 via rubber tubing 73, and several branch tubes 72 are connected to several connecting tubes 21. By adjusting the exhaust fan 11, sampling can be performed at multiple sampling seats 2, improving sampling efficiency. Furthermore, the sampling seats 2 are much smaller than the main unit 1, allowing them to be placed in various confined spaces for sampling. The connectivity of each connecting tube 21 can be adjusted via valve 721, providing multiple sampling modes to meet various sampling needs in the laboratory. Operators can select different lengths of rubber tubing 73 as needed to adapt to different experimental scenarios.

[0036] Specifically, the collecting pipe 61, the main pipe 71, several branch pipes 72 and several connecting pipes 21 are all provided with protruding rings 9 for the rubber tube 73 to be fitted.

[0037] By providing a convex ring 9 for the rubber tube 73 to be fitted, the convex ring 9 is in close contact with the inner wall of the rubber tube 73, which can increase the sealing performance between the rubber tube 73 and each tube body, and make the connection between the rubber tube 73 and each tube body more secure, which is conducive to the normal operation of sampling work.

[0038] Example 3:

[0039] Reference Figures 1 to 9 In conjunction with the technical solutions of Embodiments 1 and 2, in this embodiment, the end cap 5 is provided with a circular groove 52, and a plurality of microholes 51 are provided at the bottom of the groove 52. A protective cover 53 is placed at the groove 52. When the end cap 5 is idle and not being sampled, the protective cover 53 can be placed on its groove 52 to seal it.

[0040] Specifically, the annular platform 3 is provided with a sealing ring 32, and the end cap 5 and the collection cap 6 are both provided with annular grooves 10 that fit with the sealing ring 32.

[0041] By having the annular grooves 10 on the end cap 5 and the collection cap 6 respectively fit into the sealing ring 32 on the annular stage 3, the sealing performance of the end cap 5 and the collection cap 6 when they are fitted onto the annular stage 3 can be effectively improved, which is conducive to the normal operation of the air extraction sampling work.

[0042] Specifically, the main unit 1 is equipped with a control panel 13 for controlling the working status of the fan 11.

[0043] The control panel 13 allows for easy adjustment of the fan 11 speed according to its operating mode, facilitating sampling in different sampling modes.

[0044] Specifically, the main unit 1 is equipped with a handle 14. The handle 14 facilitates the movement of the main unit 1.

[0045] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.

Claims

1. An airborne bacteria sampler, comprising: The application relates to an air floating bacteria sampler which comprises a main machine and a plurality of sampling seats, wherein each of the main machine and the plurality of sampling seats is provided with an annular table, the bottom of the annular table is provided with an air outlet, the inner cavity of the main machine is provided with a fan, the air inlet end of the fan is communicated with the air outlet at the main machine, the main machine is provided with a plurality of exhaust holes communicated with the air outlet end of the fan, each annular table is detachably provided with a tray, the tray is placed with a culture dish, an annular ventilation hole for gas circulation is arranged between the tray and the bottom of the annular table, each sampling seat is provided with a communication pipe communicated with the air outlet on the sampling seat, each annular table is detachably provided with an end cover, the end cover is provided with a plurality of micropores, the annular table at the main machine is detachably provided with a collection cover, the collection cover is provided with a collection pipe, the collection pipe is provided with a communication assembly, and the communication assembly is used for communicating the collection pipe with a plurality of communication pipes and respectively adjusting the communication of the plurality of communication pipes.

2. The air floating bacteria sampler according to claim 1, characterized in that: a plurality of adjusting plates are movably arranged on the tray, the plurality of adjusting plates abut against the bottom of the annular table and support the tray to form the annular ventilation hole, the upper end of the adjusting plate is provided with a supporting part abutting against the culture dish, and the tray is provided with an adjusting assembly for adjusting the position of the adjusting plate.

3. The air floating bacteria sampler according to claim 2, characterized in that: the adjusting assembly comprises a bolt and a spring, the tray is provided with a screw hole matched with the bolt, the adjusting plate is provided with a through hole through which the rod body of the bolt passes, and the spring is sleeved outside the rod body of the bolt and pushes the adjusting plate to elastically abut against the head of the bolt.

4. The air floating bacteria sampler according to claim 1, characterized in that: the communication assembly comprises a main pipe body, a plurality of branch pipes and a plurality of rubber pipes, the main pipe body is respectively communicated with the plurality of branch pipes, each branch pipe is provided with a valve, the main pipe body and the collection pipe are sleeved with the rubber pipe in communication, and the plurality of branch pipes are respectively sleeved with the rubber pipes in communication between the plurality of branch pipes and the plurality of communication pipes.

5. The air floating bacteria sampler according to claim 4, characterized in that: the collection pipe, the main pipe body, the plurality of branch pipes and the plurality of communication pipes are all provided with convex rings for sleeving the rubber pipes.

6. The air floating bacteria sampler according to claim 1, characterized in that: the end cover is provided with a circular groove, the plurality of micropores are arranged at the bottom of the groove, and a protection cover is arranged at the groove.

7. The air floating bacteria sampler according to claim 1, characterized in that: the annular table is provided with a sealing ring, and the end cover and the collection cover are both provided with an annular groove matched with the sealing ring.

8. The air floating bacteria sampler according to claim 1, characterized in that: the main machine is provided with a control panel for controlling the working state of the fan.

9. An airborne bacteria sampler according to claim 1, characterized in that: The main unit is equipped with a handle.

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