CN204241351U - A kind of evaluation PM2.5 mask filtration efficiency measurement mechanism - Google Patents
A kind of evaluation PM2.5 mask filtration efficiency measurement mechanism Download PDFInfo
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- CN204241351U CN204241351U CN201420794538.XU CN201420794538U CN204241351U CN 204241351 U CN204241351 U CN 204241351U CN 201420794538 U CN201420794538 U CN 201420794538U CN 204241351 U CN204241351 U CN 204241351U
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Abstract
Disclosed in the utility model, a kind of PM2.5 mask filtration efficiency measurement mechanism, relates to proving installation field.A kind of evaluation PM2.5 mask filtration efficiency measurement mechanism, comprise mounting box, upper and lower two side all arranges air hole to described mounting box, in described mounting box, negative-pressure air fan is installed, arrange above described mounting box and measure chamber, described measurement chamber and mounting box are tightly connected, described air hole arranges PM2.5 detector by measuring in chamber described in measurement chamber and ft connection, described mounting box bottom arranges support cover, described support cover and mounting box are tightly connected, described support cover sidewall sets out pore, and the diameter of described venthole is less than the diameter of air hole.Contrast prior art, the beneficial effects of the utility model are: produce negative pressure by negative-pressure air fan, the air of external environment is entered by mouth mask and measures chamber, simulation people suction condition, make measurement result more accurate, structure is simple, volume is little, lightly easy, be convenient for carrying.
Description
Technical field
The utility model relates to proving installation field, particularly a kind of evaluation PM2.5 mask filtration efficiency measurement mechanism.
Background technology
At present, air pollution is more and more serious, is the environmental problem that the national ambient air quality of current impact and people's health are the most outstanding with the ambient atmosphere particle contamination that PM2.5 is outstanding representative.PM2.5 refers to that in air, diameter is less than or equal to the particle of 2.5 microns, also referred to as entering lung particle.
Air-polluting aggravates, and makes mouth mask become trip necessary article.At present, all kinds of mouth mask product in market emerges in an endless stream, and mostly declares to have dust-proof, anti-haze function, has good filter effect to particulates such as PM2.5.Is actual protection effect the same just like publicity? therefore there is mouth mask proving installation on the market, but existing mouth mask proving installation, also there is many problems in use, such as:
1, current mouth mask windage is on the market too large, and the air pressure of the air-breathing of detector is very little, causes allowing enough sample gas through mask fabric, enters in detector.
2, complex structure, inconvenient operation, expensive and not portable, limit its usable range, applicability is affected.
Utility model content
For solving deficiency of the prior art, the utility model provides a kind of and evaluates PM2.5 mask filtration efficiency measurement mechanism, and it, by negative-pressure air fan simulation human body suction condition, is measured accurately, structure is simple, production cost is low, is convenient for carrying.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of evaluation PM2.5 mask filtration efficiency measurement mechanism, comprise mounting box, the upper and lower two side of described mounting box all arranges air hole, in described mounting box, negative-pressure air fan is installed, arrange above described mounting box and measure chamber, described measurement chamber and mounting box are tightly connected, described air hole is by measuring chamber and ft connection, in described measurement chamber, PM2.5 detector is set, described mounting box bottom arranges support cover, described support cover and mounting box are tightly connected, described support cover sidewall sets out pore, the diameter of described venthole is less than the diameter of air hole.
Described measurement chamber is transparent measurement chamber.
Described measurement chamber is cylindrical, and the diameter in described measurement chamber is 5-10cm.
Contrast prior art, the beneficial effects of the utility model are:
1, produce negative pressure by negative-pressure air fan, the air of external environment is entered by mouth mask and measures chamber, simulation people suction condition, makes measurement result more accurate.
2, this apparatus structure is simple, volume is little, lightly easy, be convenient for carrying, be convenient to demonstrate out of doors, more accurately reflect the actual filtration effect of mouth mask, the filter effect of anti-PM2.5 mouth mask on effective evaluation market, for directive function is played in the exploitation of the selecting of PM2.5 protective mask material, mouth mask product, simultaneously also for the sale of mouth mask provides conveniently presentation tool.
3, measuring chamber adopts cylindrical, can reach mouth mask by simple device and measure the sealing in chamber, prevents from leaking gas causing sample gas to mix not have the gas of filtration to cause measurement data inaccurate.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model structural representation.
Label shown in accompanying drawing: 1, mounting box; 2, air hole; 3, negative-pressure air fan; 4, chamber is measured; 5, PM2.5 detector; 6, support cover; 7, venthole.
Embodiment
By reference to the accompanying drawings and specific embodiment, the utility model is described in further detail.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.
A kind of evaluation PM2.5 mask filtration efficiency measurement mechanism, comprise mounting box 1, described mounting box about 1 two side all arranges air hole 2, in described mounting box 1, negative-pressure air fan 3 is installed, arrange above described mounting box 1 and measure chamber 4, described measurement chamber 4 and mounting box 1 are tightly connected, described air hole 2 is by measuring chamber 4 and ft connection, in described measurement chamber 4, PM2.5 detector 5 is set, described mounting box 1 bottom arranges support cover 6, support cover 6 prevent this device in use mounting box 1 directly directly contact with the article such as desk, ventilatory effect is bad; The setting of support cover 6 in addition, makes this device entirety become vertical molding, makes this device only need in use to be placed on desk, be simple and easy to use.Described support cover 6 is tightly connected with mounting box 1, and described support cover 6 sidewall sets out pore 7, and the diameter of described venthole 7 is less than the diameter of air hole 2, and venthole 7, for controlling windage, makes air inlet relatively steady, weakens the impact of mouth mask on windage.Produce negative pressure by negative-pressure air fan 3, guarantee that in external environment, enough air enters measurement chamber by mouth mask, thus the state of simulation people air-breathing, measurement result is accurate.In addition, this device mounting box 1, measure chamber 4, support cover 6 and all adopt made of plastic, lightly easy, be convenient for carrying.
According to above technology, PM2.5 detector in use, is first opened by the utility model, then put into and measure in chamber, then the mouth mask rubber band etc. measured will be needed to be fixed on measurement top of chamber, guarantee the sealing in mouth mask and measurement chamber, open negative-pressure air fan, now namely can carry out surveying work.
Conveniently observe directly the measurement result of PM2.5 detector, described measurement chamber 4 is transparent measurement chamber.
The further embodiment of the utility model is, described measurement chamber 4 is cylindrical, can reach mouth mask by simple device and measure the sealing in chamber 4, simple and convenient.The diameter in described measurement chamber 4 is 5-10cm, goes for the mouth mask of different size, and can guarantee that measurement chamber 4 can be wrapped up by mouth mask completely, increases the sealing in mouth mask and measurement chamber 4, thus guarantees the accuracy of measurement result.
Embodiment 1:
A kind of evaluation PM2.5 mask filtration efficiency measurement mechanism, comprise mounting box 1, described mounting box about 1 two side all arranges air hole 2, in described mounting box 1, negative-pressure air fan 3 is installed, arrange above described mounting box 1 and measure chamber 4, described measurement chamber 4 and mounting box 1 are tightly connected, and described air hole 2 is by measuring chamber 4 and ft connection.Measuring chamber 4 is transparent measurement chamber, conveniently observes directly the measurement result of PM2.5 detector 5.Further, described measurement chamber 4 is cylindrical, can reach mouth mask by simple device and measure the sealing in chamber 4, simple and convenient.The diameter in described measurement chamber 4 is 5-10cm, go for the mouth mask of different size, and can guarantee that measurement chamber 4 can be wrapped up by mouth mask completely, increase the sealing in mouth mask and measurement chamber 4, thus guarantee the accuracy of measurement result, preventing from leaking gas causes sample gas to mix not having the gas filtered to cause measurement data inaccurate.Arrange PM2.5 detector 5 in described measurement chamber 4, described mounting box 1 bottom arranges support cover 6, support cover 6 prevent this device in use mounting box 1 directly directly contact with the article such as desk, ventilatory effect is bad; The setting of support cover 6 in addition, makes this device entirety become vertical molding, makes this device only need in use to be placed on desk, be simple and easy to use.Described support cover 6 is tightly connected with mounting box 1, and described support cover 6 sidewall sets out pore 7, and the diameter of described venthole 7 is less than the diameter of air hole 2, and venthole 7, for controlling windage, makes air inlet relatively steady, weakens the impact of mouth mask on windage.Produce negative pressure by negative-pressure air fan 3, guarantee that in external environment, enough air enters measurement chamber by mouth mask, thus the state of simulation people air-breathing, measurement result is accurate.In addition, this device mounting box 1, measure chamber 4, support cover 6 and all adopt made of plastic, lightly easy, be convenient for carrying.
Claims (3)
1. evaluate PM2.5 mask filtration efficiency measurement mechanism for one kind, it is characterized in that: comprise mounting box (1), upper and lower two side all arranges air hole (2) to described mounting box (1), in described mounting box (1), negative-pressure air fan (3) is installed, described mounting box (1) top is arranged measures chamber (4), described measurement chamber (4) and mounting box (1) are tightly connected, described air hole (2) is by measuring chamber (4) and ft connection, in described measurement chamber (4), PM2.5 detector (5) is set, described mounting box (1) bottom arranges support cover (6), described support cover (6) and mounting box (1) are tightly connected, described support cover (6) sidewall sets out pore (7), the diameter of described venthole (7) is less than the diameter of air hole (2).
2. one according to claim 1 evaluates PM2.5 mask filtration efficiency measurement mechanism, it is characterized in that: described measurement chamber (4) is transparent measurement chamber.
3. one according to claim 1 and 2 evaluates PM2.5 mask filtration efficiency measurement mechanism, it is characterized in that: described measurement chamber (4) is for cylindrical, and the diameter of described measurement chamber (4) is 5-10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420794538.XU CN204241351U (en) | 2014-12-16 | 2014-12-16 | A kind of evaluation PM2.5 mask filtration efficiency measurement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420794538.XU CN204241351U (en) | 2014-12-16 | 2014-12-16 | A kind of evaluation PM2.5 mask filtration efficiency measurement mechanism |
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| CN204241351U true CN204241351U (en) | 2015-04-01 |
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| CN201420794538.XU Active CN204241351U (en) | 2014-12-16 | 2014-12-16 | A kind of evaluation PM2.5 mask filtration efficiency measurement mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241800A (en) * | 2015-10-12 | 2016-01-13 | 杭州绿驰环保科技有限公司 | Air filtration material filtering efficiency testing device |
| CN106690510A (en) * | 2015-11-12 | 2017-05-24 | 江阴嘉美生物技术有限公司 | Soft three-dimensional moisture absorption anti-microbial filtering mouth mask |
| CN106690522A (en) * | 2015-11-15 | 2017-05-24 | 江阴嘉美生物技术有限公司 | High compactness stereoscopic filtration thickened mask |
| CN107505247A (en) * | 2017-09-19 | 2017-12-22 | 湖州宸唯环保科技有限公司 | A kind of test device of air purification filter material |
-
2014
- 2014-12-16 CN CN201420794538.XU patent/CN204241351U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241800A (en) * | 2015-10-12 | 2016-01-13 | 杭州绿驰环保科技有限公司 | Air filtration material filtering efficiency testing device |
| CN106690510A (en) * | 2015-11-12 | 2017-05-24 | 江阴嘉美生物技术有限公司 | Soft three-dimensional moisture absorption anti-microbial filtering mouth mask |
| CN106690522A (en) * | 2015-11-15 | 2017-05-24 | 江阴嘉美生物技术有限公司 | High compactness stereoscopic filtration thickened mask |
| CN107505247A (en) * | 2017-09-19 | 2017-12-22 | 湖州宸唯环保科技有限公司 | A kind of test device of air purification filter material |
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| C14 | Grant of patent or utility model | ||
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Address after: 250000 Room 401, Shanda South Road, Licheng District, Ji'nan, Shandong, 401 Patentee after: Shandong Connaught Fang Electronic Technology Co., Ltd. Address before: 250000 Room 401, Shanda South Road, Licheng District, Ji'nan, Shandong, 401 Patentee before: Nova Fitness Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |