Remote sampling assembly and planktonic bacteria sampler

Abstract

The utility model provides a remote sampling assembly. The remote sampling assembly comprises an adapter, a remote sampling head and a straight-through connecting pipe, the adapter is used for being connected with a sampling head mounting interface on a planktonic bacteria sampler, and an air inlet is formed in the adapter; the remote sampling head is provided with a sampling port, a first air outlet pipe and a second air outlet pipe, the first air outlet pipe and the second air outlet pipe are communicated with the sampling port, the first air outlet pipe extends in the axial direction of the sampling port, and the second air outlet pipe extends perpendicular to the axial direction of the sampling port and has a horizontal flow sampling form and a vertical flow sampling form; the other end of the straight-through connecting pipe is connected with the first air outlet pipe or the second air outlet pipe; when the straight-through connecting pipe is connected with the first air outlet pipe, the remote sampling head forms a horizontal flow sampling form, and when the straight-through connecting pipe is connected with the second air outlet pipe, the remote sampling head forms a vertical flow sampling form. The utility model further provides a planktonic bacteria sampler adopting the remote sampling assembly, and direct-current remote sampling and horizontal-flow remote sampling can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of airborne bacteria sampling, and particularly relates to a remote sampling assembly and an airborne bacteria sampler. Background Art

[0002] An airborne bacteria sampler is an efficient, powerful and stable air sampler. Based on the principle of Andersen impact method, it sucks air in the environment through a built-in pump, makes the air pass through a porous sampling head and impact onto a culture medium to capture microorganisms in the air. The airborne bacteria sampler continuously monitors the sampling volume through a built-in flow sensor and adjusts the flow rate in real time and dynamically to ensure the accuracy of the sampling flow rate.

[0003] In the prior art, when the sampler samples air, it usually sucks air through a sampling head arranged on the airborne bacteria sampler, and the sampled air is discharged from the side of the airborne bacteria sampler. Since the air inlet for sampling air and the air outlet for discharging air are relatively close, the sampling head is likely to suck back the air without microorganisms after discharge into the sampler when sucking air, which affects the sampling accuracy; and since the sampling head is fixedly arranged on the sampler, when the air flow direction is perpendicular to the sampling head, the sampling head is blocked by the airborne bacteria sampler against the air, resulting in a lower air suction efficiency and a lower sampling efficiency. Summary of the Utility Model

[0004] The embodiment of the utility model provides a remote sampling assembly and an airborne bacteria sampler, aiming to solve the problems of low sampling accuracy and low sampling efficiency in the prior art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: to provide a remote sampling assembly, including an adapter, a remote sampling head and a straight-through connecting pipe; the adapter is used to connect to the sampling head installation interface on the airborne bacteria sampler, and the adapter has an air inlet; the remote sampling head has a sampling port, a first air outlet pipe and a second air outlet pipe communicated with the sampling port, the first air outlet pipe extends along the axial direction of the sampling port, and the second air outlet pipe extends perpendicular to the axial direction of the sampling port; one end of the straight-through connecting pipe is connected to the air inlet, and the other end is connected to the first air outlet pipe or the second air outlet pipe; wherein, when the straight-through connecting pipe is connected to the first air outlet pipe, the remote sampling head forms a horizontal flow sampling form, and when the straight-through connecting pipe is connected to the second air outlet pipe, the remote sampling head forms a vertical flow sampling form.

[0006] In a possible implementation manner, a first switch is arranged on the first air outlet pipe, and a second switch is arranged on the second air outlet pipe. When the straight-through connecting pipe is connected to the first air outlet pipe, the second switch is closed; when the straight-through connecting pipe is connected to the second air outlet pipe, the first switch is closed.

[0007] In a possible implementation, a sampling cylinder directly connected to the sampling port is connected to the remote sampling head. The first air outlet pipe communicates with the bottom wall of the sampling cylinder, and the second air outlet pipe communicates with the side wall of the sampling cylinder.

[0008] In a possible implementation, a connection plate is provided at the top of the sampling cylinder, and the connection plate has the same structure as the sampling head mounting interface.

[0009] In a possible implementation, the remote sampling assembly further includes a bracket, and the bracket is connected to the sampling cylinder and can drive the sampling cylinder to flip.

[0010] In a possible implementation, the bracket includes a first frame body and a second frame body. The first frame body is connected to the sampling cylinder, and the second frame body is hinged to the first frame body; when the remote sampling head is in the horizontal flow sampling state, the first frame body and the second frame body are perpendicular to each other; when the remote sampling head is in the vertical flow sampling state, both the first frame body and the second frame body are in the vertical state.

[0011] In a possible implementation, the adapter includes a cover and a connecting pipe. The cover is used to seal and connect the sampling head mounting interface; one end of the connecting pipe is connected to the cover, and the other end forms an air inlet.

[0012] In a possible implementation, the opening direction of the air inlet is perpendicular to the sampling head mounting interface.

[0013] In a possible implementation, sealing rings are provided on the inner walls at both ends of the straight-through connecting pipe.

[0014] The beneficial effects of the remote sampling assembly provided by the present utility model are as follows: Compared with the prior art, the present utility model uses a remote sampling head far from the airborne bacteria sampler, so that the air inlet of the airborne bacteria sampler is far from the air outlet of the airborne bacteria sampler, avoiding the sampled air from re-entering the airborne bacteria sampler for sampling operations, which can reduce errors and improve the accuracy of air sampling; The remote sampling head with horizontal flow sampling state and vertical flow sampling state can adapt to air with different flow directions, switch working states in environments with different air flow directions, enable the remote sampling head to smoothly suck air, avoid the airborne bacteria sampler from obstructing air flow, and can improve air suction efficiency and air sampling efficiency.

[0015] The present utility model also provides an airborne bacteria sampler including the remote sampling assembly.

[0016] The beneficial effects of the floating bacteria sampler provided by the present utility model are as follows: Compared with the prior art, the air inlet of the floating bacteria sampler provided by the present utility model is far from the air outlet of the floating bacteria sampler, avoiding the re-entry of the sampled air into the floating bacteria sampler for sampling operation, which can reduce errors and improve the accuracy of air sampling; it can change the position of the remote sampling head according to the real-time air flow direction, improving the air sampling efficiency. Brief Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the remote sampling head in the horizontal flow sampling state provided by an embodiment of the present utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the remote sampling head in the vertical flow sampling state provided by an embodiment of the present utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the remote sampling head adopted by an embodiment of the present utility model;

[0020] Figure 4 It is a front view structural schematic diagram of the floating bacteria sampler provided by an embodiment of the present utility model;

[0021] In the figure: 10, adapter; 11, air inlet; 12, cover; 13, connecting pipe; 20, remote sampling head; 21, first air outlet pipe; 211, first switch; 22, second air outlet pipe; 221, second switch; 23, sampling cylinder; 231, connecting plate; 30, straight-through connecting pipe; 31, sealing ring; 40, bracket; 41, first frame body; 42, second frame body. Detailed Embodiment

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "above", "below", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or several of such features.

[0024] Please refer to Figure 1 and Figure 2 simultaneously. Now, the remote sampling assembly provided by the present invention will be described. The remote sampling assembly includes an adapter 10, a remote sampling head 20, and a straight-through connecting pipe 30; the adapter 10 is used to connect to the sampling head mounting interface on the airborne bacteria sampler, and the adapter 10 has an air inlet 11; the remote sampling head 20 has a sampling port, a first air outlet pipe 21 and a second air outlet pipe 22 communicating with the sampling port, the first air outlet pipe 21 extends along the axial direction of the sampling port, and the second air outlet pipe 22 extends perpendicular to the axial direction of the sampling port; one end of the straight-through connecting pipe 30 is connected to the air inlet 11, and the other end is connected to the first air outlet pipe 21 or the second air outlet pipe 22; wherein, when the straight-through connecting pipe 30 is connected to the first air outlet pipe 21, the remote sampling head 20 forms a horizontal flow sampling pattern, and when the straight-through connecting pipe 30 is connected to the second air outlet pipe 22, the remote sampling head 20 forms a vertical flow sampling pattern.

[0025] It should be noted that the adapter 10 is connected to the airborne bacteria sampler, and the remote sampling head 20 is communicated with the adapter 10 through the straight-through connecting pipe 30. The adapter 10 moves the remote sampling head 20 away from the airborne bacteria sampler, so that the suction position of the air by the airborne bacteria sampler during the sampling process is far from the air discharge port, avoiding the air discharged from the air discharge port being sucked and collected by the remote sampling head 20 again, ensuring that the air passing through the remote sampling head 20 is all un-sampled air, and improving the sampling accuracy; the straight-through connecting pipe 30 can be a glass pipe, which has a certain strength, avoiding deformation of the straight-through connecting pipe 30 during the air suction process and hindering the air from entering the adapter 10 from the remote sampling head 20, facilitating the smooth progress of the air sampling process, and the inside of the glass straight-through connecting pipe 30 is transparent, which is convenient for the installation of the overall structure.

[0026] The beneficial effects of the remote sampling component provided by the present utility model are as follows: Compared with the prior art, the present utility model uses a remote sampling head 20 that is far away from the airborne microbe sampler, so that the air inlet of the airborne microbe sampler is far away from the air outlet of the airborne microbe sampler, avoiding the re-entry of the sampled air into the airborne microbe sampler for sampling operations, which can reduce errors and improve the accuracy of air sampling; The remote sampling head 20 with horizontal flow sampling state and vertical flow sampling state can adapt to air with different flow directions, switch the working state in an environment with different air flow directions, enable the remote sampling head 20 to smoothly suck air, avoid the airborne microbe sampler from obstructing air flow, improve the air suction efficiency, and improve the air sampling efficiency.

[0027] In a possible implementation, please refer to Figures 1 to 3 , a first switch 211 is provided on the first air outlet pipe 21, and a second switch 221 is provided on the second air outlet pipe 22. When the straight-through connecting pipe 30 is connected to the first air outlet pipe 21, the second switch 221 is closed; when the straight-through connecting pipe 30 is connected to the second air outlet pipe 22, the first switch 211 is closed.

[0028] It should be noted that when the straight-through connecting pipe 30 is connected to the first air outlet pipe 21, the remote sampling head 20 is in the horizontal flow sampling state. At this time, the first switch 211 is opened and the second switch 221 is closed. The air sucked by the remote sampling head 20 can only enter the airborne microbe sampler through the first air outlet pipe 21; when the straight-through connecting pipe 30 is connected to the second air outlet pipe 22, the remote sampling head 20 is in the vertical flow sampling state. At this time, the first switch 211 is closed and the second switch 221 is opened. The air sucked by the remote sampling head 20 enters the airborne microbe sampler through the second air outlet pipe 22. The first switch 211 and the second switch 221 cooperate with each other to keep the remote sampling head 20 airtight after switching the working state, avoiding interference between the first air outlet pipe 21 and the second air outlet pipe 22 and causing air leakage, which affects the normal progress of air sampling operations.

[0029] In a possible implementation, please refer to Figure 3 , a sampling cylinder 23 directly communicating with the sampling port is connected to the remote sampling head 20. The first air outlet pipe 21 communicates with the bottom wall of the sampling cylinder 23, and the second air outlet pipe 22 communicates with the side wall of the sampling cylinder 23.

[0030] It should be noted that both the first air outlet pipe 21 and the second air outlet pipe 22 are provided on the sampling cylinder 23, and the air is sucked into the sampling cylinder 23 through the remote sampling head 20; The sampling cylinder 23 can serve as the main body part of the remote sampling head 20, playing a role in supporting the remote sampling head 20, enabling a closed space to be formed inside the remote sampling head 20, and enhancing the air suction effect.

[0031] In a possible implementation, please refer to Figure 3, a connection plate 231 is provided at the top of the sampling cylinder 23, and the connection plate 231 has the same structure as the sampling head mounting interface.

[0032] It should be noted that the upper surface of the connection plate 231 has the same mounting interface as the sampling head mounting interface, and can mount the remote sampling head 20. When installing the remote sampling component, first remove the sampling head from the sampling head mounting interface on the airborne bacteria sampler, and then install it on the connection plate 231 to form the remote sampling head 20, so that the air inlet of the airborne bacteria sampler is far from the air outlet of the airborne bacteria sampler, avoiding the sampled air from re-entering the airborne bacteria sampler for sampling operations, which can reduce errors and improve the accuracy of air sampling; the upper surface of the connection plate 231 has a convex portion, and threads are provided around the outer wall of the convex portion. The inner wall of the sampling head is in threaded cooperation with the convex portion, so that the sampling head and the connection plate 231 are fixed to each other to form the remote sampling head 20. When the remote sampling head 20 is switched to the horizontal flow sampling state, the remote sampling head 20 is not easily separated from the connection plate 231. The convex portion with threads makes the overall structure of the remote sampling head 20 more reliable, and can enhance the airtightness inside the remote sampling head 20, avoiding leakage at the connection between the connection plate 231 and the sampling head when extracting air, and improving the efficiency of air sampling.

[0033] In a possible implementation, please refer to Figure 1 and Figure 2 , the remote sampling component further includes a bracket 40, and the bracket 40 is connected to the sampling cylinder 23 and can drive the sampling cylinder 23 to flip.

[0034] It should be noted that the bracket 40 provides support for the sampling cylinder 23 and can drive the sampling cylinder 23 to flip to switch the working state of the remote sampling head 20; the bracket 40 can stably place the remote sampling head 20, and the bracket 40 provides another support point for the overall device, jointly supporting the device with the adapter 10, so that the overall remote connection device achieves force balance, avoiding the deviation and damage of the device caused by one end being stressed, which is beneficial to protecting the device and improving the service life of the device.

[0035] In a possible implementation, please refer to Figure 1 and Figure 2 , the bracket 40 includes a first frame body 41 and a second frame body 42. The first frame body 41 is connected to the sampling cylinder 23, and the second frame body 42 is hinged to the first frame body 41; when the remote sampling head 20 is in the horizontal flow sampling state, the first frame body 41 and the second frame body 42 are perpendicular to each other; when the remote sampling head 20 is in the vertical flow sampling state, both the first frame body 41 and the second frame body 42 are in the vertical state.

[0036] It should be noted that the articulated first frame body 41 and the second frame body 42 can change the included angle between them after the remote sampling head 20 changes its working state to adapt to the remote sampling head 20 in different working states, and can always effectively support the remote sampling head 20 in different working states, which is beneficial to protecting the device.

[0037] In a possible implementation, please refer to Figure 1 and Figure 2 , the adapter 10 includes a cover 12 and a connecting pipe 13. The cover 12 is used for sealing and connecting the sampling head mounting interface; one end of the connecting pipe 13 is connected to the cover 12, and the other end forms an air inlet 11.

[0038] It should be noted that the cover 12 is connected to the airborne bacteria sampler. There is a culture dish inside the cover 12. After the air is extracted by the remote sampling head 20 and enters the cover 12, the high-speed flowing air impacts the culture dish, which can capture the microorganisms in the air. A closed space is formed inside the cover 12 to prevent the air entering the cover 12 from leaking at the edge of the cover 12, improving the efficiency of air sampling; the connecting pipe 13 makes the cover 12 and the straight-through connecting pipe 30 form a sealed connection, so that the air extracted by the remote sampling head 20 can enter the inside of the cover 12 through the connecting pipe 13 for air sampling.

[0039] In a possible implementation, please refer to Figure 1 and Figure 2 , the opening direction of the air inlet 11 is perpendicular to the sampling head mounting interface.

[0040] It should be noted that the connecting pipe 13 can be a ninety-degree elbow pipe, with one end connected to the cover 12 and the other end connected to the straight-through connecting pipe 30, which can change the air inlet position of the cover 12, make the air inlet 11 of the adapter 10 perpendicular to the sampling head mounting interface, be beneficial to the installation of the overall device, and facilitate the implementation of air sampling operations.

[0041] In a possible implementation, please refer to Figure 1 and Figure 2 , sealing rings 31 are provided on the inner walls at both ends of the straight-through connecting pipe 30.

[0042] It should be noted that the sealing ring 31 can make one end of the straight-through connecting pipe 30 fit tightly with the first air outlet pipe 21 or the second air outlet pipe 22, and the other end fit tightly with the adapter 10. The sealing ring 31 makes the two ends of the rigid straight-through connecting pipe 30 form deformable joints. When the first air outlet pipe 21 or the second air outlet pipe 22 is connected to the straight-through connecting pipe 30, and the adapter 10 is connected to the straight-through connecting pipe 30, the sealing ring 31 is squeezed, restricting the air exchange between the internal space of the straight-through connecting pipe 30 and the outside world, forming an airtight closed space inside the straight-through connecting pipe 30, and preventing the air sucked into the sampling cylinder 23 from leaking at both ends of the straight-through connecting pipe 30 before entering the adapter 10, affecting the progress of air sampling operations.

[0043] Please refer to Figure 4 , the present utility model also provides a viable bacteria sampler including a remote sampling assembly.

[0044] The working process of the viable bacteria sampler provided by the present utility model is as follows: First, remove the sampling head from the viable bacteria sampler, install the adapter 10 to the sampling head installation interface on the viable bacteria sampler, connect the straight-through pipe 30 to the adapter 10, determine the air flow direction in the sampling area, connect the straight-through pipe 30 to the first air outlet pipe 21 or the second air outlet pipe 22, adjust the first frame body 41 and the second frame body 42 to support the sampling cylinder 23, install the sampling head to the connection disk 231 on the sampling cylinder 23 to form a remote sampling head 20, and start the built-in pump of the viable bacteria sampler to perform remote air extraction and sampling.

[0045] The beneficial effects of the viable bacteria sampler provided by the present utility model are as follows: Compared with the prior art, the air inlet of the viable bacteria sampler provided by the present utility model is far away from the air outlet of the viable bacteria sampler, avoiding the re-entry of the sampled air into the viable bacteria sampler for sampling operations, which can reduce errors and improve the accuracy of air sampling; it can change the position of the remote sampling head 20 according to the real-time air flow direction, improving the air sampling efficiency.

[0046] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A remote sampling component, characterized in that: include: An adapter, used to connect to the sampling head mounting interface on the planktonic bacteria sampler, the adapter having an air inlet; A remote sampling head, comprising a sampling port, a first air outlet pipe and a second air outlet pipe connected to the sampling port, wherein the first air outlet pipe extends along the axial direction of the sampling port, and the second air outlet pipe extends perpendicular to the axial direction of the sampling port; A straight-through pipe, one end of which is connected to the air inlet, and the other end of which is connected to the first air outlet pipe or the second air outlet pipe; When the straight-through pipe is connected to the first air outlet pipe, the remote sampling head forms a horizontal flow sampling shape, and when the straight-through pipe is connected to the second air outlet pipe, the remote sampling head forms a vertical flow sampling shape.

2. The remote sampling assembly according to claim 1, characterized in that The first air outlet pipe is provided with a first switch, and the second air outlet pipe is provided with a second switch. When the straight-through pipe is connected to the first air outlet pipe, the second switch is closed; when the straight-through pipe is connected to the second air outlet pipe, the first switch is closed.

3. The remote sampling assembly according to claim 1, characterized in that The remote sampling head is connected to a sampling cylinder directly connected to the sampling port, the first air outlet pipe is connected to the bottom wall of the sampling cylinder, and the second air outlet pipe is connected to the side wall of the sampling cylinder.

4. The remote sampling assembly according to claim 3, characterized in that A connection disk is provided on the top of the sampling cylinder, and the structure of the connection disk is the same as that of the sampling head mounting interface.

5. The remote sampling assembly according to claim 3, characterized in that: The remote sampling assembly also includes a bracket, which is connected to the sampling cylinder and can drive the sampling cylinder to flip.

6. The remote sampling assembly according to claim 5, characterized in that The bracket includes a first frame and a second frame, the first frame is connected to the sampling tube, and the second frame is hinged to the first frame; when the remote sampling head is in a horizontal flow sampling state, the first frame and the second frame are perpendicular to each other; when the remote sampling head is in a vertical flow sampling state, the first frame and the second frame are both in a vertical state.

7. The remote sampling assembly of claim 1, wherein: The adapter includes a sealing cover and a connecting tube, wherein the sealing cover is used for sealingly connecting the sampling head mounting interface; one end of the connecting tube is connected to the sealing cover, and the other end forms the air inlet.

8. The remote sampling assembly of claim 7, wherein: The opening direction of the air inlet is perpendicular to the installation interface of the sampling head.

9. The remote sampling assembly according to any one of claims 1 to 8, characterized in that: The inner walls of both ends of the straight-through pipe are provided with sealing rings.

10. The floating bacteria sampler is characterized by: Comprising the remote sampling component as described in any one of claims 1-9.

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