CN112577786A - Air sampling device for preventing and treating atmospheric pollution - Google Patents
Air sampling device for preventing and treating atmospheric pollution Download PDFInfo
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- CN112577786A CN112577786A CN202011404508.XA CN202011404508A CN112577786A CN 112577786 A CN112577786 A CN 112577786A CN 202011404508 A CN202011404508 A CN 202011404508A CN 112577786 A CN112577786 A CN 112577786A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2214—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling by sorption
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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Abstract
The invention discloses an air sampling device for preventing and treating air pollution, which comprises an air sampling device body and a filter membrane body, wherein a support column is fixedly arranged inside the air sampling device body, a movable part is sleeved at one end outside the support column, a bottom plate is arranged at the bottom of the movable part, a through hole is formed in the inner wall of the air sampling device body, a connecting plate is arranged on the through hole, a movable plate is arranged at one end of the connecting plate, which is positioned inside the air sampling device body, a fixed plate is arranged at one side of the movable plate, which is far away from the connecting plate, an adsorption plate is arranged at the other end of the connecting plate, which is positioned outside the air sampling device body, the top of the air sampling device body is connected with a connecting pipe, and. The invention improves the accuracy of the air sampling result, has strong flexibility and good stability, can quickly disassemble and assemble the filter membrane body, is simple and convenient to operate, and is convenient to clean and replace.
Description
Technical Field
The invention relates to the technical field of air sampling devices, in particular to an air sampling device for preventing and treating atmospheric pollution.
Background
The atmospheric sampling is a process for collecting a pollutant sample or a polluted air sample in the atmosphere, so as to obtain basic data of atmospheric pollution. Atmospheric sampling is an important step of atmospheric environment monitoring, and has a great reliability relation to monitoring data. Methods for collecting atmospheric samples mainly include two types: the first is to make a large amount of air pass through a liquid absorbent or a solid adsorbent to absorb or retain pollutants, so as to enrich the pollutants with lower concentration in the original atmosphere, such as an air extraction method and a filter membrane method. The result of measurements with this type of method is the average concentration of atmospheric pollutants over the sampling time. The second type is the collection of air containing contaminants with containers (glass bottles, plastic bags, rubber bladders, syringes, etc.). Such methods are applicable in the following cases: the concentration of pollutants in the atmosphere is high; or the measuring method has higher sensitivity and is not easy to absorb the polluted gas and vapor by the liquid absorbent or the solid absorbent. The result obtained in this way is the instantaneous concentration or the average concentration in a short time of the pollutants in the atmosphere.
Along with air sampling device's continuous use, because contain a large amount of pollutants in the atmosphere, the filter membrane among the air sampling device can accumulate the impurity pollutant after long-time the use, leads to the filter membrane to lose unable normal use of filtering capability, just need change the filter membrane this moment, and the filter membrane fixed knot among the current air sampling device constructs, and structural design is simple, and the installation is dismantled complicacy, and stability is low, and the detection accuracy that air sampling device gathered simultaneously is low. In view of the related technical problems, no effective solution has been proposed at present.
Disclosure of Invention
The invention provides an air sampling device for preventing and treating air pollution, aiming at solving the technical problems in the prior art, and the prior air sampling device has the advantages of simple structural design, complex assembly and disassembly, low stability and low detection accuracy of the air sampling device.
In order to achieve the purpose, the invention provides an air sampling device for preventing and treating air pollution, which comprises an air sampling device body 1 and a filter membrane body 2, wherein a support column 3 is fixedly arranged inside the air sampling device body 1, a clamping groove 4 is formed in the top surface of the support column 3, grooves 5 are formed in two sides of the support column 3, a movable part 6 is sleeved at one end outside the support column 3, a bottom plate 7 is arranged at the bottom of the movable part 6, a convex block 8 is fixedly arranged on the inner wall of the movable part 6, the bottom plate 7 is fixedly connected with the movable part 6, a fixed block 9 is arranged at the top end inside the movable part 6, the fixed block 9 is positioned above the clamping groove 4, the filter membrane body 2 is arranged outside the movable part 6, the inner wall of the air sampling device body 1 is tightly attached to the outer wall of the filter membrane body 2, and a through hole is, the air sampling device is characterized in that a connecting plate 10 is arranged on the through hole, one end of the connecting plate 10 is positioned in the air sampling device body 1 and is provided with a movable plate 11, one side of the movable plate 11, which is far away from the connecting plate 10, is provided with a fixed plate 12, the movable plate 11 is movably connected with the connecting plate 10, the other end of the connecting plate 10 is positioned outside the air sampling device body 1 and is provided with an adsorption plate 13, the top of the movable plate 11 is provided with a limit block, an iron sheet 14 is arranged on the outer wall of the air sampling device body 1, the top of the air sampling device body 1 is connected with a connecting pipe 15, one end, which is far away from the air sampling device body 1, of the connecting pipe 15 is connected with a sampling pipe head 16, a butt plate 17 is arranged on the sampling pipe head 16, one end, the filter paper 20 is coaxially and fixedly installed in the support tube 19, and the sampling tube head 16 is arranged between the filter paper 20 and the abutting plate 17.
In the preferred embodiment of the present invention, the protrusion 8 is movably connected inside the groove 5, the groove 5 and the protrusion 8 are symmetrically arranged about the center of the supporting column 3, and the diameter of the supporting column 3 is smaller than the inner diameter of the movable member 6.
In the preferred embodiment of the present invention, the movable member 6 is connected to the bottom plate 7 by adhesion, the outer diameter of the bottom plate 7 is larger than the inner diameter of the filter membrane body 2, and the inner side of the filter membrane body 2 is tightly attached to the outer wall of the movable member 6.
In the preferred embodiment of the present invention, the movable plate 11 has an oblique "L" shape in front view, the movable plate 11 forms a rotation mechanism with the air sampling device body 1 through the fixed plate 12, and the movable plate 11 forms a rotation mechanism with the connecting plate 10 through a cylindrical shaft mounted at the top end of the movable plate 11.
In a preferred embodiment of the present invention, the adsorption plate 13 is made of neodymium magnet, and the adsorption plate 13 is symmetrically arranged with respect to the center of the air sampling device body 1.
In a preferred embodiment of the present invention, a communicating tube is fixedly mounted on the sampling base 18, one end of the communicating tube is connected to the connecting tube 15, and the other end of the communicating tube is connected to the sampling tube head 16.
In a preferred embodiment of the invention, the support tube 19 comprises a support member, a disc is fixedly arranged inside the support member, the disc is communicated with a tube body, and the filter paper 20 is arranged between the two discs.
In a preferred embodiment of the present invention, a plurality of elastic members are disposed between the abutting plate 17 and the sampling base 18, one end of each elastic member is fixedly connected to the sampling base 18, and the other end of each elastic member is fixedly connected to the abutting plate 17.
In the preferred embodiment of the present invention, the sampling base 18 is provided with a through hole, and a plug connector which is inserted and matched with the supporting member is fixed in the through hole.
The device provided by the invention has the following technical effects:
(1) the invention is characterized in that a support column is fixedly arranged in an air sampling device body, a clamping groove is arranged on the surface of the top of the support column, grooves are arranged on two sides of the support column, a moving part is sleeved on one end of the outer part of the support column, a bottom plate is arranged at the bottom of the moving part, a convex block is fixedly arranged on the inner wall of the moving part and movably connected with the inner part of the groove, the bottom plate is fixedly connected with the moving part, a fixed block is arranged at the top end of the inner part of the moving part, a filter membrane body is arranged on the outer part of the moving part, the inner wall of the air sampling device body is tightly attached to the outer wall of the filter membrane body, a through hole is arranged on the inner wall of the air sampling device body, a connecting plate is arranged on the through, the top of the movable plate is provided with a limiting block, and the outer wall of the air sampling device body is provided with an iron sheet, so that the installation and replacement of the filter membrane body are facilitated, the working stability of the filter membrane is ensured, and the filter membrane is effectively limited;
(2) according to the air sampling device, the connecting pipe is connected to the top of the air sampling device body, the end, away from the air sampling device body, of the connecting pipe is connected with the sampling pipe head, the abutting plate is arranged on the sampling pipe head, the sampling base is arranged at the end, away from the abutting plate, of the sampling pipe head, the supporting pipe is arranged between the abutting plate and the sampling base, the filter paper is coaxially and fixedly arranged in the supporting pipe, and the sampling pipe head is arranged between the filter paper and the abutting plate, so that sampling of air pollutants is facilitated, the use is convenient, meanwhile, the sealing performance and the stability of connection can be enhanced, and the.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of an air sampling device for controlling atmospheric pollution according to an embodiment of the present invention;
fig. 2 is a schematic view of the internal structure of an air sampling device body of an air sampling device for preventing and treating atmospheric pollution according to an embodiment of the present invention;
fig. 3 is a schematic view of a connection structure of an air sampling device for preventing and treating atmospheric pollution according to an embodiment of the present invention.
1. An air sampling device body; 2. a filter membrane body; 3. a support pillar; 4. a card slot; 5. a groove; 6. a movable member; 7. a base plate; 8. a bump; 9. a fixed block; 10. a connecting plate; 11. a movable plate; 12. a fixing plate; 13. an adsorption plate; 14. iron sheets; 15. a connecting pipe; 16. a sampling tube head; 17. a butt joint plate; 18. a sampling base; 19. supporting a tube; 20. and (5) filter paper.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Some exemplary embodiments of the invention have been described for illustrative purposes, and it is to be understood that the invention may be practiced otherwise than as specifically described.
As shown in fig. 1-3, an air sampling device for preventing and treating atmospheric pollution in this embodiment includes an air sampling device body 1 and a filter membrane body 2, a support column 3 is fixedly installed inside the air sampling device body 1, a slot 4 is opened on the top surface of the support column 3, grooves 5 are opened on both sides of the support column 3, a movable member 6 is sleeved on one end outside the support column 3, a bottom plate 7 is installed at the bottom of the movable member 6, a projection 8 is fixedly installed on the inner wall of the movable member 6, the bottom plate 7 is fixedly connected with the movable member 6, a fixed block 9 is installed on the top inside of the movable member 6, the fixed block 9 is located above the slot 4, the filter membrane body 2 is installed outside the movable member 6, and the inner wall of the air sampling device body 1 is tightly attached to the outer wall of the filter membrane body 2, the air sampling device comprises an air sampling device body 1, and is characterized in that a through hole is formed in the inner wall of the air sampling device body 1, a connecting plate 10 is arranged on the through hole, a movable plate 11 is arranged at one end of the connecting plate 10, which is positioned inside the air sampling device body 1, a fixed plate 12 is arranged at one side of the movable plate 11, which is far away from the connecting plate 10, the movable plate 11 is movably connected with the connecting plate 10, an adsorption plate 13 is arranged at the other end of the connecting plate 10, which is positioned outside the air sampling device body 1, a limit block is arranged at the top of the movable plate 11, an iron sheet 14 is arranged on the outer wall of the air sampling device body 1, so that the installation and the disassembly of a filter membrane body 2 are facilitated, the working efficiency of collection is ensured, a connecting pipe 15 is connected to the top of, the one end that butt joint board 17 was kept away from to sample tube head 16 is provided with sampling base 18, be provided with between butt joint board 17 and the sampling base 18 and support tube 19, coaxial fixed mounting has filter paper 20 in the support tube 19, sample tube head 16 sets up between filter paper 20 and butt joint board 17.
As shown in fig. 2, in some embodiments, the protrusion 8 is movably connected inside the groove 5, the groove 5 and the protrusion 8 are symmetrically arranged about the center of the support column 3, the diameter of the support column 3 is smaller than the inner diameter of the movable member 6, when the block 8 slides and displaces into the groove 5, the motion state of the support column 3 can be limited, and the support column 3 can be ensured to stably move in the vertical direction, and the diameter is designed to ensure that the support column 3 can freely move in the vertical direction.
As shown in fig. 2, in some embodiments, the movable member 6 is adhesively connected to the bottom plate 7, the outer diameter of the bottom plate 7 is larger than the inner diameter of the filter membrane body 2, and the inner side of the filter membrane body 2 is tightly attached to the outer wall of the movable member 6, so that the filter membrane body 2 can be sleeved outside the movable member 6 and stably received by the top surface of the bottom plate 7.
As shown in fig. 2, in some embodiments, the movable plate 11 has an oblique "L" shape in front view, the movable plate 11 forms a rotation mechanism with the air sampling device body 1 through the fixed plate 12, and the movable plate 11 forms a rotation mechanism with the connecting plate 10 through a cylindrical shaft mounted at the top end thereof, so that the movable plate 11 can support the edge portion of the filter membrane body 2 after triggering rotation, thereby ensuring the stability of the filter membrane body 2.
In some embodiments, as shown in fig. 2, the adsorption plate 13 is made of neodymium magnet, and the adsorption plate 13 is symmetrically arranged about the center of the air sampling device body 1. So that the adsorption plate 13 can closely adhere to the iron sheet 14, thereby ensuring that the connection plate 10 and the movable plate 11 are kept in a stable state.
As shown in fig. 1, in some embodiments, a communicating tube is fixedly mounted on the sampling base 18, one end of the communicating tube is connected to the connecting tube 15, and the other end of the communicating tube is connected to the sampling tube head 16, so that the sealing performance of the connection can be enhanced.
In some embodiments, as shown in fig. 3, the support tube 19 includes a support member, a circular sheet is fixedly disposed inside the support member, the circular sheet is communicated with a tube body, and the filter paper 20 is disposed between the two circular sheets, so that when in use, negative pressure is generated in the sampling tube head, air in the external environment enters the sampling tube head from the tube body, and pollutants in the air are filtered on the filter paper, thereby achieving collection of air pollutants.
As shown in fig. 1, in some embodiments, a plurality of elastic members are disposed between the abutting plate 17 and the sampling base 18, one end of each elastic member is fixedly connected to the sampling base 18, and the other end of each elastic member is fixedly connected to the abutting plate 17.
As shown in fig. 3, in some embodiments, the sampling base 18 is provided with a through hole, and a plug connector that is in plug-in fit with the support member is fixed in the through hole, which is beneficial to improving the stability of the support member.
The working principle is as follows: in the using process, a supporting column is fixedly installed through the inside of an air sampling device body, a clamping groove is formed in the top surface of the supporting column, grooves are formed in two sides of the supporting column, a moving part is sleeved on one end of the outside of the supporting column, a bottom plate is arranged at the bottom of the moving part, a convex block is fixedly installed on the inner wall of the moving part and movably connected with the inside of the groove, the bottom plate is fixedly connected with the moving part, a fixed block is arranged at the top end of the inside of the moving part, a filter membrane body is arranged on the outside of the moving part, the inner wall of the air sampling device body is tightly attached to the outer wall of the filter membrane body, a through hole is formed in the inner wall of the air sampling device body, a connecting plate is arranged on the through hole, a movable plate is arranged at, the top of the movable plate is provided with a limiting block, and the outer wall of the air sampling device body is provided with an iron sheet, so that the installation and replacement of the filter membrane body are facilitated, the working stability of the filter membrane is ensured, and the filter membrane is effectively limited; the top connecting pipe of air sampling device body, the one end that the air sampling device body was kept away from to the connecting pipe is connected with the sample tube head, the overhead butt joint board that is provided with of sampling tube, the one end that the butt joint board was kept away from to the sample tube head is provided with the sampling base, be provided with the stay tube between butt joint board and the sampling base, coaxial fixed mounting has filter paper in the stay tube, the sample tube head sets up between filter paper and butt board, be favorable to carrying out air contaminant's sampling, high durability and convenient use, can strengthen the leakproofness and the stability of connection simultaneously, and has very high practical value and.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The air sampling device for preventing and treating air pollution comprises an air sampling device body (1) and a filter membrane body (2), and is characterized in that a support column (3) is fixedly arranged inside the air sampling device body (1), a clamping groove (4) is formed in the top surface of the support column (3), grooves (5) are formed in two sides of the support column (3), a moving part (6) is sleeved on one end of the outside of the support column (3), a bottom plate (7) is arranged at the bottom of the moving part (6), a convex block (8) is fixedly arranged on the inner wall of the moving part (6), the bottom plate (7) is fixedly connected with the moving part (6), a fixed block (9) is arranged at the top end of the inside of the moving part (6), the fixed block (9) is positioned above the clamping groove (4), and the filter membrane body (2) is arranged outside the moving part (6, the inner wall of the air sampling device body (1) is tightly attached to the outer wall of the filter membrane body (2), a through hole is formed in the inner wall of the air sampling device body (1), a connecting plate (10) is arranged on the through hole, a movable plate (11) is arranged at one end of the connecting plate (10) and located inside the air sampling device body (1), a fixed plate (12) is arranged at one side, away from the connecting plate (10), of the movable plate (11), the movable plate (11) is movably connected with the connecting plate (10), an adsorption plate (13) is arranged at the other end of the connecting plate (10) and located outside the air sampling device body (1), a limiting block is arranged at the top of the movable plate (11), an iron sheet (14) is arranged on the outer wall of the air sampling device body (1), and a connecting pipe (15) is connected to the top of the air, the one end that air sampling device body (1) was kept away from in connecting pipe (15) is connected with sample tube head (16), be provided with butt joint board (17) on sample tube head (16), the one end that butt joint board (17) were kept away from in sample tube head (16) is provided with sampling base (18), be provided with between butt joint board (17) and sampling base (18) stay tube (19), coaxial fixed mounting has filter paper (20) in stay tube (19), sample tube head (16) set up between filter paper (20) and butt joint board (17).
2. An air sampling device for preventing and treating atmospheric pollution, according to claim 1, characterized in that said projection (8) is movably connected inside said groove (5), said groove (5) and said projection (8) are symmetrically arranged with respect to the center of said supporting column (3), and the diameter of said supporting column (3) is smaller than the inner diameter of said movable member (6).
3. The air sampling device for preventing and treating atmospheric pollution as recited in claim 1, wherein said movable member (6) is adhesively connected to a bottom plate (7), the outer diameter of said bottom plate (7) is larger than the inner diameter of said filter membrane body (2), and the inner side of said filter membrane body (2) is closely attached to the outer wall of said movable member (6).
4. The air sampling device for preventing and treating atmospheric pollution according to claim 1, wherein the movable plate (11) is in an oblique L-shaped front view, the movable plate (11) and the air sampling device body (1) form a rotating mechanism through a fixed plate (12), and the movable plate (11) and the connecting plate (10) form a rotating mechanism through a cylindrical shaft mounted at the top end of the movable plate.
5. An air sampling device for preventing and treating atmospheric pollution according to claim 1, characterized in that said adsorption plate (13) is made of neodymium magnet, and said adsorption plate (13) is arranged symmetrically with respect to the center of the air sampling device body (1).
6. The air sampling device for preventing and treating atmospheric pollution of claim 1, wherein a communicating pipe is fixedly installed on the sampling base (18), one end of the communicating pipe is connected with the connecting pipe (15), and the other end of the communicating pipe is connected with the sampling pipe head (16).
7. An air sampling device for atmospheric pollution control as defined in claim 1, wherein said support tube (19) comprises a support member, a circular plate is fixedly arranged inside said support member, said circular plate is communicated with a tube body, and said filter paper (20) is arranged between two circular plates.
8. The air sampling device for preventing and treating atmospheric pollution of claim 1, wherein a plurality of elastic members are arranged between the abutting plate (17) and the sampling base (18), one end of each elastic member is fixedly connected with the sampling base (18), and the other end of each elastic member is fixedly connected with the abutting plate (17).
9. The air sampling device for preventing and treating atmospheric pollution of claim 1, wherein the sampling base (18) is provided with a through hole, and a plug connector which is in plug-in fit with the support member is fixed in the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011404508.XA CN112577786A (en) | 2020-12-03 | 2020-12-03 | Air sampling device for preventing and treating atmospheric pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011404508.XA CN112577786A (en) | 2020-12-03 | 2020-12-03 | Air sampling device for preventing and treating atmospheric pollution |
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| Publication Number | Publication Date |
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| CN112577786A true CN112577786A (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011404508.XA Pending CN112577786A (en) | 2020-12-03 | 2020-12-03 | Air sampling device for preventing and treating atmospheric pollution |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256122A (en) * | 2007-02-27 | 2008-09-03 | 香港理工大学 | Dust collection apparatus for measuring particle matter in air |
| CN108871878A (en) * | 2018-06-19 | 2018-11-23 | 宿迁龙净环保科技有限公司 | A kind of air pollutant collection device |
| CN208568395U (en) * | 2018-07-19 | 2019-03-01 | 上海浦东新区舟桥职业安全健康事务所 | A kind of air sampling rig |
| CN209689991U (en) * | 2019-04-01 | 2019-11-26 | 厦门中迅德检测技术股份有限公司 | A kind of air sampler facilitating filter membrane replacing |
| CN210676311U (en) * | 2019-09-25 | 2020-06-05 | 三峡大学 | Sample plate cover with air exhaust facility |
| CN111537297A (en) * | 2020-06-05 | 2020-08-14 | 李佳旺 | Sampling device for atmospheric pollution treatment |
| CN211317907U (en) * | 2020-01-08 | 2020-08-21 | 彭佃钦 | Sampling equipment for preventing and treating atmospheric pollution |
-
2020
- 2020-12-03 CN CN202011404508.XA patent/CN112577786A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256122A (en) * | 2007-02-27 | 2008-09-03 | 香港理工大学 | Dust collection apparatus for measuring particle matter in air |
| CN108871878A (en) * | 2018-06-19 | 2018-11-23 | 宿迁龙净环保科技有限公司 | A kind of air pollutant collection device |
| CN208568395U (en) * | 2018-07-19 | 2019-03-01 | 上海浦东新区舟桥职业安全健康事务所 | A kind of air sampling rig |
| CN209689991U (en) * | 2019-04-01 | 2019-11-26 | 厦门中迅德检测技术股份有限公司 | A kind of air sampler facilitating filter membrane replacing |
| CN210676311U (en) * | 2019-09-25 | 2020-06-05 | 三峡大学 | Sample plate cover with air exhaust facility |
| CN211317907U (en) * | 2020-01-08 | 2020-08-21 | 彭佃钦 | Sampling equipment for preventing and treating atmospheric pollution |
| CN111537297A (en) * | 2020-06-05 | 2020-08-14 | 李佳旺 | Sampling device for atmospheric pollution treatment |
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Application publication date: 20210330 |
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