CN219121821U - Inhalable particulate sampling device - Google Patents
Inhalable particulate sampling device Download PDFInfo
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- CN219121821U CN219121821U CN202223458905.2U CN202223458905U CN219121821U CN 219121821 U CN219121821 U CN 219121821U CN 202223458905 U CN202223458905 U CN 202223458905U CN 219121821 U CN219121821 U CN 219121821U
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Abstract
The utility model discloses an inhalable particulate sampling device which comprises a negative pressure main body device and a sampling cylinder, wherein the sampling cylinder is movably connected to the negative pressure main body device, the sampling cylinder comprises a cover plate and a main cylinder body, the cover plate is connected with the main cylinder body through four connecting columns, a front filter membrane, an acquisition filter membrane and a protection filter membrane are sequentially arranged in the main cylinder body from top to bottom, the front filter membrane, the acquisition filter membrane and the protection filter membrane are placed in corresponding filter membrane frames, and the filter membrane frames are movably inserted into the main cylinder body from one side. The utility model has the beneficial effects that: the front filter membrane, the collecting filter membrane and the protecting filter membrane are fixed in the filter membrane frame, and the filter membrane frame is movably arranged in the annular groove, so that the filter membrane can be conveniently replaced, and meanwhile, different types of front filter membranes, collecting filter membranes and protecting filter membranes can be matched and combined to realize sampling of different indexes, such as PM2.5, PM10 and the like; the sampling tube can be directly connected with the negative pressure main body device or connected with the sampling hose, so that the height of the sampling tube can be adjusted to collect inhalable particles at different positions.
Description
Technical Field
The utility model relates to an inhalable particulate sampling device, and belongs to the technical field of sampling.
Background
Respirable particulate matter, commonly referred to as particulate matter having a particle size of less than 10 microns, is also known as PM10. The respirable particles last in ambient air for a long time, and have a great impact on human health and atmospheric visibility. Usually from motor vehicles running on unpaved asphalt, cement pavements, the breaking and milling process of materials, and dust being blown up by wind. The inhalable particles are inhaled by people and then accumulated in respiratory systems to cause a plurality of diseases, so that the inhalable particles have great harm to the human beings. Inhalable particles can also provide a reaction bed for chemical reactions in the atmosphere, and are important targets for research in aerosol chemistry, and have been identified as an important index for air quality monitoring.
The utility model of China with publication number of CN215262677U discloses an automatic sampling device for inhalable particles, the whole structure of the automatic sampling device is of a detachable design, all main components are detachable, the filter membrane is convenient to place and take, and meanwhile, the distance between a collecting plate and an air inlet disc can be properly adjusted. However, when the filter membrane is placed, the main components are required to be detached, the filter membrane is replaced and then assembled, and the disassembly and assembly process is very complicated.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the inhalable particulate sampling device, which is characterized in that a front filter membrane, a collecting filter membrane and a protecting filter membrane are fixed in a filter membrane frame, and the filter membrane frame is movably arranged in an annular groove, so that the filter membrane can be conveniently replaced, and simultaneously, different types of front filter membranes, collecting filter membranes and protecting filter membranes can be matched and combined to realize sampling of different indexes, such as PM2.5, PM10 and the like.
The utility model is realized by the following scheme: the utility model provides an inhalable particulate sampling device, its includes negative pressure main part device and sampling tube, sampling tube swing joint is in on the negative pressure main part device, the sampling tube includes apron and main barrel, the apron with connect through four spliced poles between the main barrel, from the top down is preceding filter membrane, collection filter membrane and protection filter membrane in proper order in the main barrel, preceding filter membrane collection filter membrane with protection filter membrane puts into corresponding filter membrane frame, the filter membrane frame is followed one side activity and is inserted in the main barrel.
One side of each filter membrane frame is provided with a handheld handle.
The cover plate and the upper end of the main cylinder body are provided with edges at the periphery, the edges are of an oriented cambered surface structure, and an air passage is arranged between the two edges.
The lower extreme of sampling tube is connected and is gone up the connecting tube, the upper end of negative pressure main part device is connected and is gone down the connecting tube, the inboard of going up the connecting tube is equipped with the internal thread, the outside of going down the connecting tube is equipped with the external screw thread.
The upper connecting cylinder of the sampling cylinder is directly connected to the lower connecting cylinder of the negative pressure main body device.
The upper connecting cylinder is connected to the lower connecting cylinder through a hose.
The upper end of the hose is connected with an interface A, the lower end of the hose is connected with an interface B, the interface A is connected to the upper connecting cylinder, and the interface B is connected to the lower connecting cylinder.
The left side wall of the main cylinder body is provided with a groove, the right side wall is provided with a through hole, and the filter membrane frame penetrates through the through hole and is clamped in the groove.
The lower end of the negative pressure main body device is provided with a universal wheel.
The beneficial effects of the utility model are as follows:
1. the inhalable particulate sampling device provided by the utility model has the advantages that the front filter membrane, the acquisition filter membrane and the protection filter membrane are fixed in the filter membrane frame, and the filter membrane frame is movably arranged in the annular groove, so that the filter membrane can be conveniently replaced, and simultaneously, different types of front filter membrane, acquisition filter membrane and protection filter membrane can be matched and combined to realize sampling of different indexes, such as PM2.5 and PM 10;
2. the sampling cylinder of the inhalable particulate sampling device can be directly connected with the negative pressure main body device or connected with the sampling hose, so that the height of the sampling cylinder can be adjusted to be convenient for collecting inhalable particulate at different positions;
3. the inhalable particulate sampling device is provided with the protective filter membrane, and collected gas is filtered through the protective filter membrane, so that particulate matters are prevented from entering the negative pressure main body device to influence the operation of equipment.
Drawings
Fig. 1 is a schematic cross-sectional front view of a cartridge of embodiment 1.
Fig. 2 is a schematic front view of embodiment 1.
Fig. 3 is a schematic front view of embodiment 2.
Fig. 4 is an enlarged schematic view of the structure at a in fig. 1.
FIG. 5 is a schematic top view of the connection of the filter frame and the front filter.
In the figure: 1 is a negative pressure main body device, 2 is a sampling cylinder, 3 is a cover plate, 4 is a main cylinder, 5 is a connecting column, 6 is a front filter membrane, 7 is a collecting filter membrane, 8 is a protecting filter membrane, 9 is a filter membrane frame, 10 is a handheld handle, 11 is an edge, 12 is an air passage, 13 is an upper connecting cylinder, 14 is a lower connecting cylinder, 15 is a hose, 16 is an interface A,17 is an interface B,18 is a groove, 19 is a through hole, and 20 is a universal wheel.
Detailed Description
The utility model is further described in connection with fig. 1-5, but the scope of the utility model is not limited to this.
Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, the words "inner" and "outer" refer to directions toward or away from a geometric center of a particular component, respectively, and the drawings are in a very simplified form and all use non-precise ratios for convenience and clarity only to aid in explaining embodiments of the present utility model.
In the following description, well-known functions and constructions are not described in detail for clarity of understanding, since they would obscure the utility model with unnecessary detail, it is to be understood that in the development of any actual embodiment, numerous implementation details must be made to achieve the developer's specific goals, such as compliance with system-related or business-related constraints, that will vary from one embodiment to another, and that will be appreciated that such a development effort may be complex and time-consuming, but will be merely routine for one of ordinary skill in the art.
Example 1: the utility model provides an inhalable particulate sampling device, it includes negative pressure main part device 1 and sampling tube 2, sampling tube 2 swing joint is on negative pressure main part device 1, sampling tube 2 includes apron 3 and main barrel 4, connect through four spliced poles 5 between apron 3 and the main barrel 4, be preceding filter membrane 6 from the top down in the main barrel 4 in proper order, gather filter membrane 7 and protection filter membrane 8, preceding filter membrane 6, gather filter membrane 7 and protection filter membrane 8 put into corresponding filter membrane frame 9, filter membrane frame 9 is inserted in main barrel 4 from one side activity, be equipped with recess 18 on the left side wall of main barrel 4, open on the right side wall has through-hole 19, filter membrane frame 9 passes through-hole 19, the card is in recess 18, one side of every filter membrane frame 9 all is equipped with handheld handle 10, the lower extreme of negative pressure main part device 1 is equipped with universal wheel 20.
The lower extreme of sampling tube 2 is connected and is connected a connecting tube 13, and connecting tube 14 down is connected to the upper end of negative pressure main part device 1, and the inboard of going up connecting tube 13 is equipped with the internal thread, and the outside of connecting tube 14 down is equipped with the external screw thread, and the upper connecting tube 13 of sampling tube 2 is connected to the lower connecting tube 14 of negative pressure main part device 1 directly.
In the operation process, gas enters the cover plate 3 from the gas passage 12, then enters the main cylinder 4, is filtered by the front filter membrane 6 and then enters the collection filter membrane 7 to collect particles, the particles are detected, the collected gas is filtered by the protection filter membrane 8, the particles are prevented from entering the negative pressure main body device 1, the operation of equipment is influenced, and the gas filtered by the protection filter membrane 8 is directly discharged by the negative pressure main body device 1 through the upper connecting cylinder 1 and the lower connecting cylinder 14.
The front filter membrane 6, the collecting filter membrane 7 and the protecting filter membrane 8 are fixed in the filter membrane frame 9, the filter membrane can be conveniently replaced by adopting a drawer mode, and meanwhile, the front filter membrane, the collecting filter membrane and the protecting filter membrane of different types can be matched and combined, so that sampling of different indexes such as PM2.5 and PM10 can be realized.
Example 2: the utility model provides an inhalable particulate sampling device, it includes negative pressure main part device 1 and sampling tube 2, sampling tube 2 swing joint is on negative pressure main part device 1, sampling tube 2 includes apron 3 and main barrel 4, connect through four spliced poles 5 between apron 3 and the main barrel 4, be preceding filter membrane 6 from the top down in the main barrel 4 in proper order, gather filter membrane 7 and protection filter membrane 8, preceding filter membrane 6, gather filter membrane 7 and protection filter membrane 8 put into corresponding filter membrane frame 9, filter membrane frame 9 is inserted in main barrel 4 from one side activity, be equipped with recess 18 on the left side wall of main barrel 4, open on the right side wall has through-hole 19, filter membrane frame 9 passes through-hole 19, the card is in recess 18, one side of every filter membrane frame 9 all is equipped with handheld handle 10, the lower extreme of negative pressure main part device 1 is equipped with universal wheel 20.
The lower extreme of sampling tube 2 is connected and is connected a connecting tube 13, and connecting tube 14 down is connected to the upper end of negative pressure main part device 1, and the inboard of going up connecting tube 13 is equipped with the internal thread, and the outside of connecting tube 14 down is equipped with the external screw thread.
The upper connecting cylinder 13 is connected to the lower connecting cylinder 14 through a hose 15, an upper end of the hose 15 is connected to an interface A16, a lower end is connected to an interface B17, the interface A16 is connected to the upper connecting cylinder 13, and the interface B17 is connected to the lower connecting cylinder 14.
In the operation process, gas enters the cover plate 3 from the gas passing channel 12, then enters the main cylinder 4, is filtered by the front filter membrane 6 and then enters the collection filter membrane 7 to collect particles, the particles are detected, the collected gas is filtered by the protection filter membrane 8, the particles are prevented from entering the negative pressure main body device 1, the operation of equipment is influenced, the gas filtered by the protection filter membrane 8 enters the hose 15 through the upper connecting cylinder 13, then enters the lower connecting cylinder 14 and finally is discharged through the negative pressure main body device 1, the hose 15 is additionally arranged in the embodiment, the height of the sampling cylinder can be adjusted, so that the inhalable particles at different positions can be collected conveniently, and as to how the hose 15 is connected, the sampling cylinder 2 is fixed, various implementation modes are provided, and the protection range of the application is not provided.
The front filter membrane 6, the collecting filter membrane 7 and the protecting filter membrane 8 are fixed in the filter membrane frame 9, the filter membrane can be conveniently replaced by adopting a drawer mode, and meanwhile, the front filter membrane 6, the collecting filter membrane 7 and the protecting filter membrane 8 of different types can be matched and combined, so that sampling of different indexes such as PM2.5 and PM10 can be realized.
While the utility model has been described and illustrated in considerable detail, it should be understood that modifications and equivalents to the above-described embodiments will become apparent to those skilled in the art, and that such modifications and improvements may be made without departing from the spirit of the utility model.
Claims (9)
1. An inhalable particulate sampling device, characterized in that: the novel negative pressure filter comprises a negative pressure main body device (1) and a sampling cylinder (2), wherein the sampling cylinder (2) is movably connected to the negative pressure main body device (1), the sampling cylinder (2) comprises a cover plate (3) and a main cylinder body (4), the cover plate (3) is connected with the main cylinder body (4) through four connecting columns (5), a front filter membrane (6), an acquisition filter membrane (7) and a protection filter membrane (8) are sequentially arranged in the main cylinder body (4) from top to bottom, the front filter membrane (6) is used for acquiring the filter membrane (7) and the protection filter membrane (8) is used for placing a corresponding filter membrane frame (9), and the filter membrane frame (9) is movably inserted into the main cylinder body (4) from one side.
2. An inhalable particulate sampling device according to claim 1, wherein: one side of each filter membrane frame (9) is provided with a handheld handle (10).
3. An inhalable particulate sampling device according to claim 1, wherein: the cover plate (3) and the main cylinder body (4) are provided with edges (11) around the upper end, the edges (11) are of an oriented cambered surface structure, and an air passage (12) is arranged between the two edges (11).
4. An inhalable particulate sampling device according to claim 1, wherein: the lower extreme of sampling tube (2) is connected and is gone up connecting tube (13), connecting tube (14) down are connected to the upper end of negative pressure main part device (1), the inboard of going up connecting tube (13) is equipped with the internal thread, the outside of connecting tube (14) is equipped with the external screw thread down.
5. An inhalable particulate sampling device according to claim 4, wherein: an upper connecting cylinder (13) of the sampling cylinder (2) is directly connected to a lower connecting cylinder (14) of the negative pressure main body device (1).
6. An inhalable particulate sampling device according to claim 4, wherein: the upper connecting cylinder (13) is connected to the lower connecting cylinder (14) by a hose (15).
7. An inhalable particulate sampling device according to claim 6, wherein: an upper end of the hose (15) is connected with an interface A (16) and a lower end of the hose is connected with an interface B (17), the interface A (16) is connected with the upper connecting cylinder (13), and the interface B (17) is connected with the lower connecting cylinder (14).
8. An inhalable particulate sampling device according to claim 1, wherein: the left side wall of the main cylinder body (4) is provided with a groove (18), the right side wall is provided with a through hole (19), and the filter membrane frame (9) passes through the through hole (19) and is clamped in the groove (18).
9. An inhalable particulate sampling device according to claim 1, wherein: the lower end of the negative pressure main body device (1) is provided with a universal wheel (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223458905.2U CN219121821U (en) | 2022-12-23 | 2022-12-23 | Inhalable particulate sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223458905.2U CN219121821U (en) | 2022-12-23 | 2022-12-23 | Inhalable particulate sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219121821U true CN219121821U (en) | 2023-06-02 |
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ID=86526965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223458905.2U Active CN219121821U (en) | 2022-12-23 | 2022-12-23 | Inhalable particulate sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219121821U (en) |
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- 2022-12-23 CN CN202223458905.2U patent/CN219121821U/en active Active
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