Sampling and cleaning device for floating bacterium sampling robot

Abstract

The utility model provides a sampling and cleaning device for a planktonic bacteria sampling robot, which belongs to the technical field of planktonic bacteria sampling equipment and comprises an air exhaust component and a connecting disc. The air exhaust component is arranged in the sampling workbench; one end of the air exhaust component is communicated with the sampling port through an air outlet pipeline, and the other end is communicated with the outside through an air inlet pipeline; wherein a gas inlet communicated with the gas inlet pipeline is formed in the side part of the sampling workbench; the connecting disc is rotationally arranged in the sampling workbench; one side of the connecting disc is in contact with the end part of the air inlet pipeline, and the other side of the connecting disc is in contact with the inner side wall of the sampling workbench; wherein a first through hole and a second through hole are formed in the connecting disc, and the air inlet pipeline and the air inlet can be communicated through the first through hole or the second through hole; and a filter screen is arranged in the first through hole. By starting the air exhaust part, floating bacteria on the inner walls of the air inlet pipeline and the air outlet pipeline are blown away under the action of airflow, and the floating bacteria attached to the inner circumferential walls of the air inlet pipeline and the initial pipeline can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of airborne bacteria sampling equipment, and particularly relates to a sampling and cleaning device for an airborne bacteria sampling robot. Background Art

[0002] The dust particle counter and the airborne bacteria sampling robot are based on the SLAM algorithm and the lidar obstacle avoidance system to ensure accurate site arrival for sampling particles and airborne bacteria in the clean room environment. In the prior art, the dust particle counter and the airborne bacteria sampling robot include a sampling workbench, a sampling port is arranged on the sampling workbench, an air extraction component communicated with the sampling port is arranged inside the sampling workbench, and then a culture dish is placed at the position of the sampling port on the workbench; the air extraction component is communicated with the outside of the sampling workbench through a pipeline; by starting the air extraction component, air can enter the sampling port after passing through the air extraction component, and then the air passes through the culture dish, and dust particles and airborne bacteria in the air can stay on the culture dish.

[0003] The culture dish for sampling, as shown in the Chinese invention patent application with the application number 201110095010.4, includes a sampling head body located upstream of the culture dish. The sampling head body has a circular collection port and a plurality of slits located at the collection port. The plurality of slits are uniformly distributed along the circumferential direction of the collection port. Each slit extends along the radial direction of the collection port, and a buffer transition groove is arranged upstream of each slit, and the ratio of the total area of all the slits to the upper surface area of the collection port meets specific conditions.

[0004] A sampling head is arranged at the sampling port. By placing the culture dish on the sampling head and then extracting air through the air extraction component, air can enter the culture dish after passing through the air extraction component and the sampling head; airborne bacteria in the air will stay in the culture dish, thus completing the sampling of airborne bacteria; by repeating the above operation, sampling can be carried out at multiple detection positions.

[0005] In the above sampling process, since the air is blown from the air extraction component to the culture dish, when airborne bacteria adhere to the inner peripheral wall of the pipeline, it will cause interference to the next sampling and easily affect the final detection result. Summary of the Utility Model

[0006] An embodiment of the utility model provides a sampling and cleaning device for an airborne bacteria sampling robot, aiming to solve the technical problem that the existing sampling method is prone to interference by airborne bacteria.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is:

[0008] Provide a sampling and cleaning device for an airborne bacteria sampling robot, which is arranged on a sampling workbench. A sampling head communicated with a sampling port is arranged on the sampling workbench, and the sampling head is used for plugging and matching with a culture dish; the sampling and cleaning device includes:

[0009] An air extraction component is arranged inside the sampling workbench; one end of the air extraction component is communicated with the sampling port through an air outlet pipeline, and the other end is communicated with the outside through an air inlet pipeline; wherein, an air inlet is provided on the side of the sampling workbench and is communicated with the air inlet pipeline.

[0010] A connection disk is rotatably arranged inside the sampling workbench; one side of the connection disk contacts the end of the air inlet pipeline, and the other side of the connection disk contacts the inner side wall of the sampling workbench; wherein, a first through hole and a second through hole are provided on the connection disk, and the first through hole or the second through hole can conduct the air inlet pipeline and the air inlet; a filter screen is arranged inside the first through hole.

[0011] In a possible implementation manner, the filter screen is fixed on a connection ring, and the connection ring is detachably connected with the connection disk.

[0012] In a possible implementation manner, a stepped surface is provided on the side of the connection disk that contacts the sampling workbench, and the stepped surface is arranged at the position of the first through hole; the connection ring is arranged on the stepped surface, and the connection ring and the connection disk are connected by bolts.

[0013] In a possible implementation manner, an installation groove is provided on the outer peripheral wall of the connection disk at a position corresponding to the first through hole, the connection ring is in plug-in fit with the installation groove, and a positioning structure is arranged between the connection disk and the connection ring;

[0014] Wherein, when the connection ring is installed in place, the connection ring is coaxially arranged with the first through hole.

[0015] In a possible implementation manner, a threaded hole for facing the installation groove is provided at the end of the connection disk, and the threaded hole is close to the edge position of the connection disk; the outer peripheral wall of the connection ring contacts the bottom of the installation groove, and the positioning structure includes:

[0016] A positioning bolt that is in threaded fit with the threaded hole of the connection disk; when the connection ring is installed in place, the threaded end of the positioning bolt can be inserted into the installation groove and contact the outer peripheral wall of the connection ring to radially limit the connection ring.

[0017] In a possible implementation manner, an arc-shaped groove is provided on one side of the installation groove, and the arc-shaped groove is coaxially arranged with the first through hole; a slot communicated with the arc-shaped groove is provided at the opening position of the installation groove; the positioning structure includes:

[0018] A connection column is connected to the end of the connection ring; the connection column can be in plug-in fit with the slot, and the connection column can rotate in the arc-shaped groove.

[0019] In a possible implementation, the outer peripheral wall of the connecting ring has a plurality of grooves arranged at intervals.

[0020] In a possible implementation, the outer peripheral wall of the connecting column is elastic, and the outer peripheral wall of the connecting column can abut against both sides of the arc-shaped groove.

[0021] In a possible implementation, the air extraction component includes a centrifugal fan, the air inlet of the centrifugal fan is communicated with the air inlet pipe, and the air outlet of the centrifugal fan is communicated with the air outlet pipe.

[0022] A sampling and cleaning device for a floating bacteria sampling robot provided by the present utility model, compared with the prior art, the aperture of the filter screen is smaller than the diameter of the floating bacteria, so the floating bacteria can be intercepted; during the first sampling, the second through hole on the connecting disk communicates the air inlet pipe and the air inlet, by starting the air extraction component, external air can be drawn into the air inlet, and after passing through the air inlet pipe and the initial pipe, it impacts on the culture dish, the air can pass through the air holes on the culture dish, and the floating bacteria can stay on the culture dish; after the first sampling is completed, the culture dish on the sampling head is taken away, then the connecting disk is rotated to make the first through hole communicate the air inlet pipe and the air inlet, at this time, the air extraction component is started at the maximum power, and the filter screen in the first through hole can filter the air, reducing the floating bacteria entering the air inlet pipe, and the floating bacteria on the inner walls of the air inlet pipe and the air outlet pipe are blown away under the action of the air flow, which can reduce the floating bacteria adhering to the inner peripheral walls of the air inlet pipe and the initial pipe; during the next sampling, the interference to the sampling can be reduced. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of a sampling and cleaning device for a floating bacteria sampling robot provided by an embodiment of the present utility model;

[0024] Figure 2 It is a cross-sectional view of a sampling and cleaning device for a floating bacteria sampling robot provided by an embodiment of the present utility model;

[0025] Figure 3 It is a cross-sectional view of the sampling head part of a sampling and cleaning device for a floating bacteria sampling robot provided by an embodiment of the present utility model;

[0026] Figure 4 It is a schematic diagram of the stepped surface part of the connecting disk of a sampling and cleaning device for a floating bacteria sampling robot provided by an embodiment of the present utility model;

[0027] Figure 5 It is a schematic diagram of the installation groove part of a sampling and cleaning device for a floating bacteria sampling robot provided by an embodiment of the present utility model;

[0028] Figure 6 Schematic diagram of the arc groove part of a sampling and cleaning device for a floating bacteria sampling robot provided by an embodiment of the present invention;

[0029] Figure 7 Schematic diagram of the connecting column part of a sampling and cleaning device for a floating bacteria sampling robot provided by an embodiment of the present invention.

[0030] Explanation of reference numerals: 1, sampling workbench; 2, sampling head; 3, culture dish; 4, air extraction component; 41, air outlet pipe; 42, air inlet pipe; 5, connecting disk; 51, first through hole; 52, second through hole; 53, filter screen; 54, connecting ring; 541, groove; 55, step surface; 56, installation groove; 561, arc groove; 562, slot; 57, connecting column. Specific implementation manners

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] Please refer to Figures 1 to 7 , and now a sampling and cleaning device for a floating bacteria sampling robot provided by the present invention will be described. The sampling and cleaning device for a floating bacteria sampling robot is arranged on the sampling workbench 1. A sampling head 2 communicating with the sampling port is arranged on the sampling workbench 1. The sampling head 2 is used for plugging and matching with the culture dish 3; the sampling and cleaning device includes an air extraction component 4 and a connecting disk 5; the air extraction component 4 is arranged in the sampling workbench 1; one end of the air extraction component 4 is communicated with the sampling port through the air outlet pipe 41, and the other end is communicated with the outside through the air inlet pipe 42; wherein, an air inlet connected to the air inlet pipe 42 is provided on the side of the sampling workbench 1; the connecting disk 5 is rotatably arranged inside the sampling workbench 1; one side of the connecting disk 5 contacts the end of the air inlet pipe 42, and the other side of the connecting disk 5 contacts the inner side wall of the sampling workbench 1; wherein, the connecting disk 5 has a first through hole 51 and a second through hole 52, and the first through hole 51 or the second through hole 52 can conduct the air inlet pipe 42 and the air inlet; a filter screen 53 is arranged in the first through hole 51. A driving motor for driving the connecting disk 5 to rotate is arranged outside the sampling workbench 1. A dust-proof cover is arranged on the culture dish 3, and the dust-proof cover is removed during sampling.

[0033] A cleaning structure for the sampling head 2 of a floating bacteria sampling robot provided by the present utility model, compared with the prior art, the aperture of the filter net 53 is smaller than the diameter of the floating bacteria, so the floating bacteria can be intercepted; during the first sampling, the second through hole 52 on the connecting disk 5 communicates with the air inlet pipe 42 and the air inlet. By starting the air extraction component 4, external air can be extracted from the air inlet, and after passing through the air inlet pipe 42 and the initial pipe, it impacts onto the culture dish 3. The air can pass through the air holes on the culture dish 3, and the floating bacteria can stay on the culture dish 3; after the first sampling is completed, the culture dish 3 on the sampling head 2 is taken away, and then the connecting disk 5 is rotated to make the first through hole 51 communicate with the air inlet pipe 42 and the air inlet. At this time, the air extraction component 4 is started at the maximum power. The filter net 53 in the first through hole 51 can filter the air, reducing the floating bacteria entering the air inlet pipe 42, and the floating bacteria on the inner walls of the air inlet pipe 42 and the air outlet pipe 41 are blown away under the action of the air flow, which can reduce the floating bacteria adhering to the inner peripheral walls of the air inlet pipe 42 and the initial pipe; during the next sampling, the interference to the sampling can be reduced.

[0034] Exemplarily, the air extraction component 4 includes a centrifugal fan. The air inlet of the centrifugal fan is communicated with the air inlet pipe 42, and the air outlet of the centrifugal fan is communicated with the air outlet pipe 41; after starting the centrifugal fan, external air flow can pass through the air inlet pipe 42 and the air outlet pipe 41, and finally the floating bacteria are impacted onto the culture dish 3; although the term "impact" is used to describe the sampling process in this application to make the floating bacteria adhere to the culture dish 3; during the sampling process, the position of the culture dish 3 does not change.

[0035] In some embodiments, as Figures 1 to 7 shown, the filter net 53 is fixed on the connecting ring 54, and the connecting ring 54 is detachably connected to the connecting disk 5; the side of the connecting disk 5 in contact with the sampling workbench 1 has a step surface 55, and the step surface 55 is arranged at the position of the first through hole 51; the connecting ring 54 is arranged on the step surface 55, and the connecting ring 54 and the connecting disk 5 are connected by bolts.

[0036] It should be noted that by providing the step surface 55 on the connecting disk 5, the connecting ring 54 can be installed on the step surface 55; after installation, the connecting ring 54 does not protrude from the connecting disk 5, so it will not interfere with the rotation of the connecting disk 5; the bolts can be arranged on the side of the connecting disk 5 close to the air inlet pipe 42. The connecting ring 54 is provided with threaded holes, and the connecting disk 5 is provided with through holes. After installing the connecting ring 54 onto the step surface 55, the threaded end of the bolt passes through the connecting disk 5 and is threadedly engaged with the connecting ring 54; the through holes on the connecting disk 5 are countersunk holes, so the nut of the bolt can enter the countersunk holes to avoid the nut interfering with the rotation of the connecting disk 5.

[0037] In some embodiments, as Figures 1 to 7As shown in the figure, an installation groove 56 is formed at a position on the outer peripheral wall of the connection plate 5 corresponding to the first through hole 51. The connection ring 54 is inserted and fitted with the installation groove 56, and a positioning structure is provided between the connection plate 5 and the connection ring 54. Among them, when the connection ring 54 is installed in place, the connection ring 54 is coaxially arranged with the first through hole 51.

[0038] It should be noted that by providing the installation groove 56 on the outer peripheral wall of the connection plate 5 and inserting the connection ring 54 into the installation groove 56, the interference caused by the rotation of the connection ring 54 to the connection plate 5 can be avoided, and the filter net 53 can be located in the first through hole 51. Therefore, the air passing through the first through hole 51 can be filtered. The connection ring 54 can be fixed on the connection plate 5 through the positioning structure, and it is also convenient to remove the connection ring 54 from the connection plate 5.

[0039] In some embodiments, as Figures 1 to 7 shown, the end of the connection plate 5 has a threaded hole for facing the installation groove 56, and the threaded hole is close to the edge position of the connection plate 5. The outer peripheral wall of the connection ring 54 contacts the bottom of the installation groove 56. The positioning structure includes a positioning bolt (not shown in the figure), and the positioning bolt is threadedly fitted with the threaded hole of the connection plate 5. When the connection ring 54 is installed in place, the threaded end of the positioning bolt can be inserted into the installation groove 56 and contact the outer peripheral wall of the connection ring 54 to radially limit the connection ring 54.

[0040] It should be noted that after the connection ring 54 is inserted into the installation groove 56, the connection ring 54 contacts the bottom of the installation groove 56, and the outer peripheral wall of the connection ring 54 also contacts the side wall of the installation groove 56. Therefore, the connection ring 54 can be limited. After the threaded end of the positioning bolt is screwed into the installation groove 56, the outer peripheral wall of the threaded end of the positioning bolt can contact the outer peripheral wall of the connection ring 54. At this time, the connection ring 54 can be radially positioned, reducing the radial sliding of the connection ring 54. Through the above settings of the present application, the connection ring 54 can be restricted in the installation groove 56.

[0041] In some embodiments, as Figures 1 to 7 shown, one side of the installation groove 56 has an arc-shaped groove 561, and the arc-shaped groove 561 is coaxially arranged with the first through hole 51. The installation groove 56 has a slot 562 communicating with the arc-shaped groove 561 at the opening position. The positioning structure includes a connection column 57, and the connection column 57 is connected to the end of the connection ring 54. The connection column 57 can be inserted and fitted with the slot 562, and the connection column 57 can rotate in the arc-shaped groove 561. The outer peripheral wall of the connection column 57 has elasticity, and the outer peripheral wall of the connection column 57 can abut against both sides of the arc-shaped groove 561. The outer peripheral wall of the connection ring 54 has a plurality of grooves 541 arranged at intervals.

[0042] It should be noted that after the connecting ring 54 is installed in the installation groove 56, the connecting column 57 is first slidably engaged with the slot 562; after the connecting ring 54 is installed in place, the connecting column 57 is located at the connection position of the arc-shaped groove 561 and the slot 562. At this time, when the connecting ring 54 is rotated, the connecting column 57 can be screwed into the arc-shaped groove 561; due to the elastic outer peripheral wall of the connecting column 57, when the connecting column 57 is screwed into the arc-shaped groove 561, the outer peripheral wall of the connecting column 57 undergoes elastic deformation, and the outer peripheral wall of the connecting column 57 can abut against the side wall of the arc-shaped groove 561 to fix the connecting ring 54 in the rotated state. Therefore, it is convenient to fix the connecting ring 54 on the connecting disk 5. By providing a plurality of grooves 541 on the outer peripheral wall of the connecting ring 54, it is convenient for the operator to rotate the connecting ring 54.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sampling and cleaning device for a floating bacteria sampling robot, which is arranged on a sampling workbench, and a sampling head connected to a sampling port is arranged on the sampling workbench, and the sampling head is used to be plugged and matched with a culture dish; characterized in that: The sampling and cleaning device includes: An air extraction component is arranged in the sampling workbench; one end of the air extraction component is connected to the sampling port through an air outlet pipe, and the other end is connected to the outside through an air inlet pipe; wherein an air inlet connected to the air inlet pipe is provided on the side of the sampling workbench; A connecting plate is rotatably arranged inside the sampling workbench; one side of the connecting plate contacts the end of the air intake pipe, and the other side of the connecting plate contacts the inner wall of the sampling workbench; wherein the connecting plate has a first through hole and a second through hole, and the first through hole or the second through hole can conduct the air intake pipe and the air inlet; a filter is provided in the first through hole.

2. A sampling and cleaning device for a floating bacteria sampling robot as claimed in claim 1, characterized in that: The filter screen is fixed on the connecting ring, and the connecting ring is detachably connected to the connecting plate.

3. A sampling and cleaning device for a floating bacteria sampling robot as claimed in claim 2, characterized in that: The connection plate has a step surface on one side in contact with the sampling workbench, and the step surface is arranged at the position of the first through hole; the connection ring is arranged on the step surface, and the connection ring is connected to the connection plate by bolts.

4. A sampling and cleaning device for a floating bacteria sampling robot as claimed in claim 2, characterized in that: The outer peripheral wall of the connection plate is provided with a mounting groove at a position corresponding to the first through hole, the connection ring is plugged into and matched with the mounting groove, and a positioning structure is provided between the connection plate and the connection ring; Wherein, when the connecting ring is installed in place, the connecting ring and the first through hole are coaxially arranged.

5. A sampling and cleaning device for a floating bacteria sampling robot as claimed in claim 4, characterized in that: The end of the connecting plate has a threaded hole facing the mounting groove, and the threaded hole is close to the edge of the connecting plate; the outer peripheral wall of the connecting ring contacts the bottom of the mounting groove, and the positioning structure includes: The positioning bolt is threadedly matched with the threaded hole of the connecting plate; when the connecting ring is installed in place, the threaded end of the positioning bolt can be inserted into the installation groove and contact the outer peripheral wall of the connecting ring to radially limit the connecting ring.

6. A sampling and cleaning device for a floating bacteria sampling robot as claimed in claim 4, characterized in that: One side of the mounting groove has an arc groove, and the arc groove is coaxially arranged with the first through hole; the mounting groove has a slot connected to the arc groove at the opening position; the positioning structure includes: A connecting post is connected to the end of the connecting ring; the connecting post can be plugged and matched with the slot, and the connecting post can rotate in the arc groove.

7. A sampling and cleaning device for a floating bacteria sampling robot as claimed in claim 6, characterized in that: The outer peripheral wall of the connecting ring is provided with a plurality of grooves arranged at intervals.

8. The sampling and cleaning device for a floating bacteria sampling robot according to claim 6, characterized in that: The outer peripheral wall of the connecting column is elastic and can press against two sides of the arc groove.

9. The sampling and cleaning device for a floating bacteria sampling robot according to claim 1, characterized in that: The air extraction component comprises a centrifugal fan, an air inlet of the centrifugal fan is communicated with an air inlet duct, and an air outlet of the centrifugal fan is communicated with an air outlet duct.

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