Sampling assembly of robot for counting dust particles and sampling floating bacteria

Abstract

The utility model provides a sampling assembly of a robot for counting dust particles and sampling floating bacteria, which belongs to the technical field of clean room detection and comprises a tray and an annular bulge, air holes are formed in the middle of the tray; the bottom of the tray is provided with a connecting pipeline communicated with the air passing hole and a sampling opening in the sampling workbench; the annular bulge is connected to the top of the tray; the annular bulge is used for being inserted and matched with the bottom of the culture dish and is in contact with the inner peripheral wall of the bottom of the culture dish; wherein the tray is connected with a sealing ring on the outer side of the annular bulge, and the sealing ring is used for abutting against the bottom of the culture dish. The annular bulge and the tray are coaxially arranged, so that after a culture dish is placed on the tray, the culture dish and the tray can be coaxially placed, and a sample can be conveniently and uniformly stayed on the culture dish; a cover body is arranged on the culture dish; through the arrangement, the sealing performance between the culture dish and the tray can be improved, and the situation of air leakage at the connecting position of the culture dish and the tray is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of clean room detection, and particularly relates to a sampling assembly for a dust particle counter and a floating bacteria sampler robot. Background Art

[0002] Based on the SLAM algorithm and the lidar obstacle avoidance system, the dust particle counter and the floating bacteria sampler robot ensure accurate arrival at the site for sampling particles and floating bacteria in the clean room environment. In the prior art, the dust particle counter and the floating bacteria sampler 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 floating bacteria in the air can stay on the culture dish.

[0003] As shown in the Chinese invention patent application with the application number 201110095010.4, the culture dish for sampling includes a sampling head body upstream of the culture dish. The sampling head body has a circular collection port and a plurality of slits at the collection port. The plurality of slits are evenly 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 satisfies specific conditions.

[0004] However, the method of placing the culture dish on the sampling workbench is likely to have the problem of poor sealing between the culture dish and the sampling workbench, resulting in the diversion of the sampling air flow and easily affecting the detection result. Summary of the Utility Model

[0005] An embodiment of the utility model provides a sampling assembly for a dust particle counter and a floating bacteria sampler robot, aiming to solve the technical problem of poor sealing between the culture dish and the workbench in the prior art.

[0006] To achieve the above object, the technical solution adopted by the utility model is:

[0007] A sampling assembly for a dust particle counter and a floating bacteria sampler robot is provided, which is arranged on a sampling workbench. The sampling assembly includes:

[0008] A tray with a through hole in the middle; a connecting pipe communicated with the through hole and the sampling port on the sampling workbench is arranged at the bottom of the tray;

[0009] An annular protrusion connected to the top of the tray; the annular protrusion is used for plugging and matching with the bottom of the culture dish and contacting the inner peripheral wall of the bottom of the culture dish;

[0010] Wherein, a sealing ring is connected to the outside of the annular protrusion of the tray, and the sealing ring is used to abut against the bottom of the petri dish.

[0011] In a possible implementation, the annular protrusion is coaxially arranged with the tray.

[0012] In a possible implementation, the sealing ring is fixed on the tray, and the top of the sealing ring has an adhesive layer, and the adhesive layer is used to bond the bottom of the petri dish.

[0013] In a possible implementation, a guiding component is connected to the top of the annular protrusion, and the outside of the guiding component is on the same circumferential surface as the outside of the annular protrusion; a guiding inclined surface is provided at a position near the top of the outside of the guiding component, and the guiding inclined surface inclines towards the inside of the annular protrusion.

[0014] In a possible implementation, a supporting protrusion is provided at the position inside the annular protrusion on the top of the tray, and the top of the supporting protrusion is connected to the bottom of the guiding component.

[0015] In a possible implementation, an upwardly protruding extension part is provided at the position of the guiding component on the top of the annular protrusion, and the guiding component is arranged on the top of the extension part.

[0016] In a possible implementation, there are several guiding components, and the several guiding components are spaced apart along the circumferential direction of the annular protrusion.

[0017] In a possible implementation, an elastic sleeve is connected to the position near the bottom of the outer peripheral wall of the annular protrusion, and the elastic sleeve is used to contact the inner peripheral wall of the bottom of the petri dish.

[0018] In a possible implementation, the top of the elastic sleeve is in smooth transition with the outer peripheral wall of the annular protrusion.

[0019] Compared with the prior art, for the sampling assembly of a dust particle counter and airborne bacteria sampling robot provided by the present utility model, before sampling, the petri dish is placed on the tray. The bottom of the petri dish has an opening, and the bottom of the petri dish is in plug-in fit with the annular protrusion, and the outer peripheral wall of the annular protrusion can contact the inner peripheral wall of the opening at the bottom of the petri dish, achieving a preliminary sealing effect; by providing a sealing ring on the tray and the top of the sealing ring abutting against the bottom of the petri dish, the sealing performance between the petri dish and the tray can be further improved, reducing the occurrence of air leakage at the connection position between the petri dish and the tray, thereby reducing the sampling error. Description of the Drawings

[0020] Figure 1A schematic diagram of a sampling assembly for a dust particle counting and floating bacteria sampling robot provided in an embodiment of the utility model;

[0021] Figure 2 for Figure 1 The enlarged schematic diagram of the middle A part;

[0022] Figure 3 A cross-sectional view of a sampling assembly of a robot for counting dust particles and sampling floating bacteria provided in an embodiment of the utility model;

[0023] Figure 4 for Figure 3 Enlarged schematic diagram of part B in the middle.

[0024] Explanation of the reference numerals: 1. Sampling workbench; 2. Tray; 21. Air hole; 22. Connecting pipe; 23. Sealing ring; 24. Flange; 25. Support protrusion; 3. Annular protrusion; 31. Guide component; 32. Guide slope; 33. Extension; 34. Elastic sleeve; 4. Culture dish; 41. Cover. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0026] Please also read Figures 1 to 4 , a sampling assembly for a dust particle counting and floating bacteria sampling robot provided by the utility model is now described. The sampling assembly for a dust particle counting and floating bacteria sampling robot is arranged on a sampling workbench 1, and the sampling assembly includes a tray 2 and an annular protrusion 3; the middle of the tray 2 has an air hole 21; the bottom of the tray 2 has a connecting pipe 22 connected to the air hole 21 and the sampling port on the sampling workbench 1; the annular protrusion 3 is connected to the top of the tray 2; the annular protrusion 3 is used to be plugged and matched with the bottom of the culture dish 4, and is in contact with the inner peripheral wall of the bottom of the culture dish 4; wherein, the tray 2 is connected to the outer side of the annular protrusion 3 with a sealing ring 23, and the sealing ring 23 is used to abut against the bottom of the culture dish 4. The annular protrusion 3 is coaxially arranged with the tray 2. After the culture dish 4 is placed on the tray 2, it can ensure that the culture dish 4 and the tray 2 are placed coaxially, thereby facilitating the sample to stay evenly on the culture dish 4; a cover body 41 is provided on the culture dish 4, and the cover body 41 needs to be removed when sampling.

[0027] The sampling assembly of a dust particle counter and floating bacteria sampling robot provided by the present utility model, compared with the prior art, before sampling, the culture dish 4 is placed on the tray 2. The bottom of the culture dish 4 has an opening, and the bottom of the culture dish 4 is inserted and matched with the annular protrusion 3, and the outer peripheral wall of the annular protrusion 3 can contact the inner peripheral wall of the opening at the bottom of the culture dish 4, achieving a preliminary sealing effect; by providing a sealing ring 23 on the tray 2, and the top of the sealing ring 23 abuts against the bottom of the culture dish 4, the sealing performance between the culture dish 4 and the tray 2 can be further improved, reducing the air leakage at the connection position between the culture dish 4 and the tray 2, thereby reducing the sampling error; although the air flow blows upward from the bottom to the culture dish 4 during sampling, the air flow will not blow up the culture dish 4, that is, the position of the culture dish 4 will not change.

[0028] Exemplarily, the connecting pipe 22 at the bottom of the tray 2 has a preset length, and a flange 24 is fixedly provided at the bottom of the connecting pipe 22. The sampling workbench 1 has threaded holes aligned with the through holes on the flange 24, and the flange 24 and the sampling workbench 1 are fixed by bolts. The process of sampling by the air extraction component is the prior art and will not be elaborated here.

[0029] In some embodiments, as Figures 1 to 4 shown, the sealing ring 23 is fixed on the tray 2, and the top of the sealing ring 23 has an adhesive layer for adhering to the bottom of the culture dish 4.

[0030] It should be noted that by fixing the sealing ring 23 on the tray 2 and providing an adhesive layer on the top of the sealing ring 23, when the culture dish 4 is placed on the tray 2, the bottom of the culture dish 4 can be adhesively matched with the sealing ring 23, further strengthening the sealing performance between the culture dish 4 and the sealing ring 23.

[0031] In some embodiments, as Figures 1 to 4 shown, a guiding component 31 is connected to the top of the annular protrusion 3, and the outer side of the guiding component 31 is on the same circumferential surface as the outer side of the annular protrusion 3; a guiding inclined surface 32 is provided at a position near the top of the outer side of the guiding component 31, and the guiding inclined surface 32 inclines towards the inner side of the annular protrusion 3; the guiding component 31 is several, and several guiding components 31 are distributed at intervals along the circumferential direction of the annular protrusion 3.

[0032] It should be noted that by providing the guiding component 31 on the top of the annular protrusion 3 and providing an inwardly inclined guiding inclined surface 32 on the top of the guiding component 31, when the bottom of the culture dish 4 is inserted and matched with the annular protrusion 3, the guiding inclined surface 32 on the guiding component 31 can guide the edge position of the bottom of the culture dish 4, and then the bottom of the culture dish 4 is inserted and matched with the annular protrusion 3; through the above settings of the present application, it can be ensured that the culture dish 4 and the tray 2 are coaxially arranged.

[0033] In some embodiments, as Figures 1 to 4 shown, the top of the tray 2 has a support protrusion 25 at the position inside the annular protrusion 3, and the top of the support protrusion 25 is connected to the bottom of the guiding member 31; the top of the annular protrusion 3 has an upwardly protruding extension 33 at the position of the guiding member 31, and the guiding member 31 is arranged on the top of the extension 33.

[0034] It should be noted that by providing the extension 33 at the top of the annular protrusion 3 and arranging the guiding member 31 on the top of the extension 33, the annular protrusion 3 can first contact the bottom of the culture dish 4, and then circumferentially limit the bottom edge position of the culture dish 4. By providing the support protrusion 25 on the tray 2 and connecting the support protrusion 25 to the guiding member 31, the connection strength between the guiding member 31 and the tray 2 can be improved, and thus the situation of the fracture of the guiding member 31 can be reduced.

[0035] In some embodiments, as Figures 1 to 4 shown, an elastic sleeve 34 is connected to the outer peripheral wall of the annular protrusion 3 near the bottom, and the elastic sleeve 34 is used to contact the inner peripheral wall of the bottom of the culture dish 4; the top of the elastic sleeve 34 is smoothly transitioned with the outer peripheral wall of the annular protrusion 3.

[0036] It should be noted that by providing the elastic sleeve 34 on the outer peripheral wall of the annular protrusion 3, when the culture dish 4 and the tray 2 are inserted and matched, the elastic sleeve 34 contacts the inner peripheral wall of the bottom of the culture dish 4, and at this time the elastic sleeve 34 undergoes elastic deformation to improve the sealing performance between the culture dish 4 and the annular protrusion 3.

[0037] 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 shall be included in the protection scope of the present invention.

Claims

1. A sampling assembly for dust particle counting and floating bacteria sampling robot, arranged on a sampling workbench, characterized in that: The sampling assembly includes: A tray having an air hole in the middle; a connecting pipe connected to the air hole and a sampling port on the sampling workbench is provided at the bottom of the tray; An annular protrusion connected to the top of the tray; the annular protrusion is used to be plugged into and matched with the bottom of the culture dish and to contact the inner peripheral wall of the bottom of the culture dish; Wherein, the tray is connected with a sealing ring on the outer side of the annular protrusion, and the sealing ring is used to abut against the bottom of the culture dish.

2. A sampling assembly for a dust particle counting and floating bacteria sampling robot as claimed in claim 1, characterized in that: The annular protrusion is coaxially arranged with the tray.

3. The sampling assembly for a dust particle counting and floating bacteria sampling robot according to claim 1, characterized in that: The sealing ring is fixed on the tray, and the top of the sealing ring is provided with an adhesive layer, and the adhesive layer is used for bonding the bottom of the culture dish.

4. The sampling assembly for a dust particle counting and floating bacteria sampling robot according to claim 1, characterized in that: A guide component is connected to the top of the annular protrusion, and the outer side of the guide component is on the same circumferential surface as the outer side of the annular protrusion; a guide slope is provided on the outer side of the guide component near the top, and the guide slope is inclined toward the inner side of the annular protrusion.

5. The sampling assembly for a dust particle counting and floating bacteria sampling robot as claimed in claim 4, characterized in that: The top of the tray is provided with a supporting protrusion at a position inside the annular protrusion, and the top of the supporting protrusion is connected to the bottom of the guide component.

6. The sampling assembly for a dust particle counting and floating bacteria sampling robot according to claim 4, characterized in that: The top of the annular protrusion has an upwardly protruding extension portion at the position of the guide component, and the guide component is arranged on the top of the extension portion.

7. A sampling assembly for a dust particle counting and floating bacteria sampling robot as claimed in claim 4 or 5, characterized in that: There are a plurality of guide components, and the plurality of guide components are distributed at intervals along the circumference of the annular protrusion.

8. A sampling assembly for a dust particle counting and floating bacteria sampling robot as described in any one of claims 1 to 6, characterized in that: An elastic sleeve is connected to a position of the outer peripheral wall of the annular protrusion near the bottom, and the elastic sleeve is used to contact the inner peripheral wall of the bottom of the culture dish.

9. The sampling assembly for a dust particle counting and floating bacteria sampling robot according to claim 8, characterized in that: The top of the elastic sleeve smoothly transitions to the outer peripheral wall of the annular protrusion.

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