CN203849064U - Combined atmospheric particulate dry precipitation passive sampling box - Google Patents
Combined atmospheric particulate dry precipitation passive sampling box Download PDFInfo
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- CN203849064U CN203849064U CN201420274248.2U CN201420274248U CN203849064U CN 203849064 U CN203849064 U CN 203849064U CN 201420274248 U CN201420274248 U CN 201420274248U CN 203849064 U CN203849064 U CN 203849064U
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- filter membrane
- box
- sampling box
- sampling
- membrane box
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Abstract
The utility model discloses a combined atmospheric particulate dry precipitation passive sampling box, comprising a base, at least two filter membrane boxes and a fixing shaft, wherein the fixing shaft is fixed on the base; a fixing sheet is arranged at one end of each filter membrane box; a fixing axle hole is formed in each fixing sheet; the filter membrane boxes sequentially penetrate through the fixing shaft through the fixing axle holes. The sampling box disclosed by the utility model is simple in structure and convenient to use, and a plurality of parallel samples can be simultaneously collected.
Description
Technical field
The utility model relates to and a kind ofly has filter membrane and deposit the passive type of the knockdown dry deposition of function (film) sampling box.
Background technology
Particle is one of distinct issues of current China environmental air pollution, is the primary atmosphere pollution in China city.Dry deposition is the main mechanism that Atmospheric particulates are eliminated, and the pollutant again Atmospheric particulates being carried transfers to earth's surface simultaneously.The pollutant that outdoor dry deposition carries is the important pollution source of soil; The particle that is deposited in flooring or furniture surface brings harm to health (particularly children), can make indoor living environment situation variation.By dry deposition, monitoring disclosed depositing dust feature, is the basis of the human body degree of exposure of Atmospheric particulates in the source of deduction Atmospheric particulates and the path of migrating, deep research department quantitatively.
Passive type (film) atmospheric sampling be a kind of be to using filter membrane (quartz film, glass fibre membrane, Teflon film, PUF film etc.) as substituting face, the unpowered Sampling techniques that Atmospheric particulates are adsorbed, absorbed.Compare with active sampling, passive type sampling has without power supply, economy feature easily.The control of dust cylinder wet method sampling of recommending with the gravimetry method > > (GB/T 15265-94) of < < surrounding air depositing dust is compared, the sampling of passive type film does not need to carry out drying and processing, can not affect the physics and chemistry characteristic of depositing dust; Membrane sampling volume ratio control of dust cylinder is little, and applicability is stronger.Filter membrane has certain factor of porosity, after particle sedimentation, can fall into space wherein, reduces " secondary plays dirt ".The above advantage of passive type (film) sampling, makes this kind of Sampling techniques obtain development.
A pith of passive type (film) sampling thief is exactly the setting of supporting or placing film, Ge Bizhou etc. (2013) are in patent " a kind of new type of passive formula air sampler (CN201320225537.9) ", described a kind of new type of passive formula air sampler, had and place and the fixing end box of filter membrane.But the deficiency of this technology has 2: a sampling thief can only be placed a film, can not carry out Parallel Sampling, can not meet the requirement that different pollutant needs are used different films; After sampling finishes, filter membrane need to be taken out and is stored in other utensil from end box, may cause the problems such as particle loss, filter membrane distortion or sample contamination on filter membrane.Tang(2011) in patent " Multigas passive sampler " (US 20090301229A1), described a kind of Passive sampler of multiple gaseous contaminant of vertical demixing, but this sampling thief do not possess the function that gathers Duplicate Samples yet.
Summary of the invention
The purpose of this utility model is the defect existing in prior art in order to solve, and provides a kind of and can gather a plurality of Duplicate Samples simultaneously, and can be used as the sampling box that filter membrane case is used.
In order to achieve the above object, the utility model provides a kind of combined type Atmospheric particulates dry deposition passive type sampling box, comprises pedestal, filter membrane box and stationary shaft; Filter membrane box is at least two; Stationary shaft is fixed on pedestal; Filter membrane box one end is provided with stator; Stator is provided with fixed shaft hole; Filter membrane box is through on stationary shaft successively by fixed shaft hole.
Above-mentioned sampling box also comprises lid; Lid and filter membrane box below are equipped with pressure ring; Pedestal is provided with the ring groove suitable with pressure ring.
Filter membrane box is two to four, is located at pedestal top successively through stationary shaft.Preferably 4, can carry out Duplicate Samples collection by zero lap.
Filter membrane box upper end outer circumferential side is provided with groove or snap ring, and lower end outer circumferential side correspondence is provided with snap ring or groove, by snap ring, is snapped in and in groove, is realized fixing between neighbouring filter membrane box.Or the upper and lower two ends of filter membrane box are equipped with stator, neighbouring filter membrane box is located by stator.
The utility model sampling box also comprises hold-down nut; Stationary shaft upper end is provided with the screw thread suitable with hold-down nut.
Filter membrane box edge is provided with opening, conveniently takes, puts filter membrane.
The utility model has the following advantages compared to existing technology: the utility model carries out composite design by stationary shaft to a plurality of filter membrane boxes, and rotatable opening when carrying out a plurality of Duplicate Samples gathers, and can draw in after having gathered, and vertically places conserve space; Top filter membrane lid upper box cover, is convenient to depositing and transporting of filter membrane.Lid and filter membrane box lower end are equipped with pressure ring simultaneously, and the filter membrane in the filter membrane box of convenient fixing below, avoids filter membrane to move, and loses sample.The utility model sampling box is simple in structure, easy to use, can gather a plurality of Duplicate Samples simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model sampling box;
Fig. 2 is the vertical view of filter membrane box in Fig. 1;
Fig. 3 is the upward view of filter membrane box in Fig. 1;
Fig. 4 is the schematic diagram that is used in combination of the utility model sampling box.
In figure, 1-lid, 2-filter membrane box, 21-opening, 3-stationary shaft, 4-hold-down nut, 5-pedestal, 6-stator, 61-fixed shaft hole, 7-filter membrane, 8-pressure ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model combined type Atmospheric particulates dry deposition passive type sampling box is elaborated.
As shown in Figure 1, the utility model sampling box comprises lid 1, filter membrane box 2, stationary shaft 3, hold-down nut 4, pedestal 5 and stator 6.Filter membrane box 2 is 4, and each filter membrane box 2 edge is equipped with stator 6, and stator 6 is provided with fixed shaft hole 61, as shown in Figure 2.Stationary shaft 3 is fixed on pedestal one end, and filter membrane box 2 is located at pedestal 5 tops through stationary shaft 3 successively by stator 6.Filter membrane box 2 tops are topmost provided with lid 1.Lid 1 one sides are also provided with fixed shaft hole, and stationary shaft 3 upper ends are through lid 1, and stationary shaft 3 upper ends are provided with screw thread, by hold-down nut 4 fixedly lid 1 and filter membrane box 2.
In conjunction with Fig. 2 and Fig. 3, lid 1 and filter membrane box 2 back sides are provided with pressure ring 8, by pressure ring 8, push down the filter membrane 7 in the filter membrane box of below.Pedestal 5 is provided with ring groove, the pressure ring of filter membrane box 2 lower ends below placement.Filter membrane box 2 edges are provided with opening 21, conveniently take, put filter membrane 7.
During for convenient gathering in, relative position fixing between upper and lower filter membrane box, can be respectively equipped with stator in edge, the upper and lower two ends of filter membrane box, by upper and lower stator, is accepted and is fixed; Or can be provided with groove or snap ring at filter membrane box upper end outer circumferential side, lower end outer circumferential side correspondence is provided with snap ring or groove, snaps in the relative position of realizing between neighbouring filter membrane box in groove confirm by snap ring.
During use, the hold-down nut 4 of outwarding winding, takes out lid 1, outwards winding after lifting successively filter membrane box 2, and as shown in Figure 4, filter membrane box a is positioned at the bottom, can not rotate; Filter membrane box b can be along pin 90-degree rotation; Filter membrane box c dextrorotation turnback; Filter membrane box d is positioned at top layer 270 degree that turn clockwise.(not shown) when upper and lower filter membrane box is accepted by stator, 4 filter membrane boxes vertically launch; When upper and lower filter membrane box is accepted by groove and snap ring (as shown in Figure 1), the horizontal development of 4 filter membrane boxes.4 filter membrane boxes after two kinds of modes are launched do not have overlapping in the horizontal direction.In each filter membrane box, according to demand, put into filter membrane, just can gather 4 Duplicate Samples simultaneously.After sampling finishes, filter membrane box spin-up is closed up, the filter membrane 7 by pressure ring 8 fixing belows, covers lid 1, and the nut 4 that is tightened, finally forms a combined type filter membrane box being superimposed together completely, is convenient to the storage and transport of filter membrane.
Claims (7)
1. a combined type Atmospheric particulates dry deposition passive type sampling box, is characterized in that: described sampling box comprises pedestal, filter membrane box and stationary shaft; Described filter membrane box is at least two; Described stationary shaft is fixed on described pedestal; Described filter membrane box one end is provided with stator; Described stator is provided with fixed shaft hole; Described filter membrane box is through on described stationary shaft successively by fixed shaft hole.
2. sampling box according to claim 1, is characterized in that: described sampling box also comprises lid; Described lid and filter membrane box below are equipped with pressure ring; Described pedestal is provided with the ring groove suitable with pressure ring.
3. sampling box according to claim 1, is characterized in that: described filter membrane box is two to four.
4. according to the arbitrary described sampling box of claims 1 to 3, it is characterized in that: described filter membrane box upper end outer circumferential side is provided with groove or snap ring, and lower end outer circumferential side correspondence is provided with snap ring or groove.
5. according to the arbitrary described sampling box of claims 1 to 3, it is characterized in that: the upper and lower two ends of described filter membrane box are equipped with stator.
6. sampling box according to claim 2, is characterized in that: described sampling box also comprises hold-down nut; Described stationary shaft upper end is provided with the screw thread suitable with described hold-down nut.
7. according to the arbitrary described sampling box of claims 1 to 3, it is characterized in that: described filter membrane box edge is provided with opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274248.2U CN203849064U (en) | 2014-05-27 | 2014-05-27 | Combined atmospheric particulate dry precipitation passive sampling box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274248.2U CN203849064U (en) | 2014-05-27 | 2014-05-27 | Combined atmospheric particulate dry precipitation passive sampling box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203849064U true CN203849064U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420274248.2U Expired - Fee Related CN203849064U (en) | 2014-05-27 | 2014-05-27 | Combined atmospheric particulate dry precipitation passive sampling box |
Country Status (1)
| Country | Link |
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| CN (1) | CN203849064U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646422A (en) * | 2019-11-14 | 2020-01-03 | 徐州飞梦电子科技有限公司 | Unmanned aerial vehicle equipment for detecting and sampling sulfur content in air and using method thereof |
| CN113029707A (en) * | 2021-04-23 | 2021-06-25 | 河北恒丰检测技术服务有限公司 | Atmospheric sampler |
-
2014
- 2014-05-27 CN CN201420274248.2U patent/CN203849064U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646422A (en) * | 2019-11-14 | 2020-01-03 | 徐州飞梦电子科技有限公司 | Unmanned aerial vehicle equipment for detecting and sampling sulfur content in air and using method thereof |
| CN113029707A (en) * | 2021-04-23 | 2021-06-25 | 河北恒丰检测技术服务有限公司 | Atmospheric sampler |
| CN113029707B (en) * | 2021-04-23 | 2022-07-12 | 河北恒丰检测技术服务有限公司 | Atmospheric sampler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20160527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |