CN209117537U - A kind of mask strainability tester - Google Patents
A kind of mask strainability tester Download PDFInfo
- Publication number
- CN209117537U CN209117537U CN201821536078.5U CN201821536078U CN209117537U CN 209117537 U CN209117537 U CN 209117537U CN 201821536078 U CN201821536078 U CN 201821536078U CN 209117537 U CN209117537 U CN 209117537U
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- mask
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- pressure difference
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Abstract
A kind of mask strainability tester, including mask efficiency drag measurement fixture and tidal air drag measurement module, the utility model mask strainability tester can be accomplished preferably to test by the mask efficiency drag measurement fixture and tidal air drag measurement module to the strainability of mask, it is structure-integrated, weight saving, cost is saved, structure is simple, can preferably realize that mask strainability is tested.
Description
Technical field
The utility model relates to the tests of the filterability of a variety of masks (including medical protective mask and biological protective mask) to lead
Domain, especially a kind of mask strainability tester.
Background technique
Mask refers generally to be worn over nose and mouth for filtering the air of disengaging mouth and nose, to reach gas, the gas of blocking harmful
The apparatus of taste, droplet disengaging wearer's mouth and nose, Duo Yibu or paper etc. are made, and haze weather is multiple in recent years, cause domestic public affairs
Very big concern of the crowd for air pollution problems inherent.According to the World Health Organization about air quality risk assessment, the health of the mankind
Long-term exposure and day exposure of the effect with fine particle (PM2.5) have significant correlation, are chronically exposed to the PM2.5 of high concentration
It will increase mortality risk in environment.Under the background in haze pressure city, wears haze mask and just protect own health at people
Important means, mask also becomes one of the consumer goods of common people instantly " most concerned about, most concern, most worry ".Mask is evaluated to produce
The index of product most critical is exactly filter efficiency, determines that can mask really play the role of anti-PM2.5 pollution particulate matter.Now
Mask product on the market is tinkling of jades to meet the eye on every side, and style is different, and on-line off-line sale is hot, can also stamp in the mask product packaging of part
The poster of filter efficiency 99% or even 100%, can actually detected result cause anxiety, the mask of some nominal anti-PM2.5 actually makes
The filtration to PM2.5 is not had in, to form great damage to consumer health.Mask market is fake and forged
Product is disorderly mutually prominent, and in March, 2016 Shanghai Municipal Quality Supervision Bureau announces mask sampling result, and filter efficiency is not in 69 batch mask products
54 batch up to standard, disqualification rate 78%.The Risk Monitoring for carrying out mask filtration efficiency project, to specification mask market unrest phase, dimension
It is significant to protect consumers' rights and interests.Existing mask efficiency test is carried out separately with tidal air resistance measurement, and device occupies
Volume is big, and heavy, increases cost and complicated for operation in this way, service efficiency is low, is not suitable for the needs of market sustainable development.
Therefore, it is necessary to provide the new technical solution of one kind to overcome drawbacks described above.
Utility model content
The purpose of this utility model is to provide the mask strainability tests that one kind can effectively solve above-mentioned technical problem
Instrument.
For the purpose for reaching the utility model, adopt the following technical scheme that a kind of mask strainability tester includes mouth
Cover efficiency drag measurement fixture and tidal air drag measurement module；The mask efficiency drag measurement fixture includes power supply, described
It is connected with compressed air processing unit on power supply, generator unit, the generation are connected on the compressed air processing unit
Device unit is equipped with test fixture, and the test fixture is equipped with pressure differential upstream point and pressure difference downstream point, on the test fixture
It is connected with diluter unit and precise pressure regulating valve, the diluter unit connects to power supply, and the diluter unit is equipped with upper
Counter and the downstream counter are swum, main control unit is connected in the upstream counter, is connected on the main control unit
Display screen, the main control unit are equipped with operating unit, and the downstream counter and the main control unit are electrically connected, the essence
Close pressure regulator valve is equipped with flow cell, and the tidal air drag measurement module includes head mould；The head mould is measured equipped with pressure difference
Instrument, the pressure difference test meter connect to power supply, the pressure difference test meter and the pressure differential upstream point and pressure difference downstream point electricity
Property connection, the head mould is equipped with respiratory flow unit, and the respiratory flow unit is equipped with control of breathing instrument, and the breathing is controlled
Instrument processed is equipped with switching valve, and the flow cell is connect with the switching valve by pipeline, the mask efficiency drag measurement folder
Tool carries out gas exchanges by switching valve with the tidal air drag measurement module and concentrates；Vacuum is connected in the switching valve
Unit.
Preferably: the validity test area of the filtrate clamped on the test fixture is 100cm2。
Compared with prior art, the utility model has the following beneficial effects: the utility model mask strainability is tested
Instrument can accomplish more the strainability of mask by the mask efficiency drag measurement fixture and tidal air drag measurement module
Cost is saved in good test, structure-integrated, weight saving, and structure is simple, can preferably realize that mask strainability is surveyed
Examination.
Detailed description of the invention
Fig. 1 is the work flow diagram of the utility model mask strainability tester,
Fig. 2 is the structural schematic diagram of the utility model mask strainability tester.
Specific embodiment
Clear and complete explanation is made to the utility model mask strainability tester below in conjunction with attached drawing.
As shown in Figs. 1-2, a kind of mask strainability tester, including mask efficiency drag measurement fixture 1 and tidal air
Drag measurement module 2；The mask efficiency drag measurement fixture 1 includes power supply 11, and the power supply 11 can mention for whole device
For energy；Compressed air processing unit 12 is connected on the power supply 11, the power supply 11 is the compressed air processing unit
12 provide electric energy, and the power supply 11 is equipped with switch (not shown), facilitates the opening and closing for controlling the compressed air processing unit 12,
The compressed air processing unit 12 can provide gas source for whole system, filtrate test be passed air through, to reach test
It is required that；Generator unit 13, the gas in the compressed air processing unit 12 are connected on the compressed air processing unit 12
Body can enter the generator unit 13 by pipeline (not shown), and the generator unit 13 can be empty to the compression
Oiliness or salt particulate matter in gas unit 12 in gas etc. are handled；The generator unit 13 is equipped with test fixture
16, the test fixture 16 can clamp filtrate, and the gas in it can be applied to institute by the generator unit 13
The filtrate on test fixture 16 is stated, the validity test area for the filtrate that the test fixture 16 clamps is 100cm2；The generation
The population of aerosol can gather on the filtrate clamped on the test fixture 16 in device unit 13；The test fixture 16
It is equipped with pressure differential upstream point 14 and pressure difference downstream point 15, the pressure differential upstream point 14 can be to clamping on the test fixture 16
The upstream particulate number of filtrate carries out pressure test；The pressure difference downstream point 15 can be to clamping on the test fixture 16
Filtrate downstream aerosol particle subnumber carry out pressure test；Diluter unit 17 and precision are connected on the test fixture 16
Pressure regulator valve 10, the diluter unit 17 are connect with power supply 11, and convenient is that the diluter unit 17 provides electric energy, the dilution
Device unit 17 can be diluted processing to the aerosol particle subnumber on the filtrate clamped on the test fixture 16, facilitate meter
Number；The diluter unit 17 is equipped with upstream counter 18 and the downstream counter 19, and the upstream counter 18 can be with
The aerosol particle subnumber of the filtrate of 17 upstream of diluter unit is counted, facilitate below detection and use, it is described on
It is connected with main control unit 102 on trip counter 18, the main control unit 102 can be used for the action control of tester and data are adopted
Collect and analyze, is connected with display screen (not shown) on the main control unit 102, the display screen is displayed for test process
And test result, the main control unit 102 are equipped with operating unit (not shown), the operating unit can be used for controlling instrument and open
Dynamic, emergency stop, flow adjusting etc. operates, and the aerosol particle subnumber that the counting in the upstream counter 18 generates can be by described
The display screen connected on main control unit 102 reflects data, and the main control unit 102 is connect with printer (not shown), can be with
By reflection in the upstream counter 18 to the data-printing on the display screen at manuscript；The downstream counter 19 can incite somebody to action
The aerosol particle subnumber of the filtrate in 17 downstream of diluter unit is counted, the downstream counter 19 and the master control list
Member 102 is electrically connected, and the data in the downstream counter 19 can be by the display screen display that connects on the main control unit 102
Show, the data that the display screen is shown can be printed as manuscript by the printer connecting with the main control unit 102；The essence
The flow of the aerosol particle subnumber on filtrate clamped on the close adjustable test fixture 16 of pressure regulator valve 10；The accurate tune
Pressure valve 10 is equipped with flow cell 101, and the flow cell 101 can be to the aerosol particle flowed out in the precise pressure regulating valve 10
Subnumber carries out storage control.
As shown in Figure 1, the tidal air drag measurement module 2 includes head mould 21；The head mould 21 is measured equipped with pressure difference
Instrument 22, the pressure difference test meter 22 are connect with power supply 11, and the power supply 11 is that the pressure difference test meter 22 provides energy, the pressure
Difference measuring instrument 22 is equipped with switch (not shown), and the control pressure difference test meter 22 is facilitated to be opened and closed, the pressure difference test meter 22 with
The pressure differential upstream point 14 and pressure difference downstream point 15 are electrically connected, and the pressure difference test meter 22 can be by the pressure differential upstream
On the air mass flow pressure difference to the head mould 21 generated on point 14 and the pressure difference downstream point 15, the head mould 21 is equipped with breathing
Flow cell 23, the respiratory flow unit 23 can receive the respiratory resistance data generated on the head mould 21；It is described
Respiratory flow unit 23 is equipped with control of breathing instrument 24, and the control of breathing instrument 24 can control the respiratory flow unit 23 and pass
The respiratory resistance come；The control of breathing instrument 24 is equipped with switching valve 3, and the respiratory resistance on the control of breathing instrument 24 can lead to
Piping (not shown) is flow in the switching valve 3, and the flow cell 101 (is not schemed with the switching valve 3 by pipeline
Show) it connects, the aerosol particle subnumber that the switching valve 3 can transmit the flow cell 101 be handled, the mask effect
Rate drag measurement fixture 1 and the tidal air drag measurement module 2 carry out gas exchanges by switching valve 3 and concentrate；It is described to cut
Change the sky that valve 3 can transmit the flow cell 101 with the control of breathing instrument 24 equipped with vacuum unit 4, the switching valve 3
Gas is transmitted in the vacuum unit 4, to realize the reuse of resource.
As shown in Figure 1, when the utility model mask strainability tester uses: connection power supply 11 first, so as to
So that the compressed air processing unit 12, the generator unit 13, the diluter unit 17, the main control unit 102,
The flow cell 101 works, and prepares so that the display screen, printer reset, then at the compressed air
Reason unit 12 can provide gas source for whole system, and the concentration satisfaction that the generator unit 13 can make upstream occur is wanted
It asks, facilitates the test of subsequent breathing unit, be then applied on the test fixture 16 and clamped by the generator unit 13
Filtrate on so that pressure differential upstream point 14 is detected with the pressure difference downstream point 15, the then filtrate
On aerosol particle subnumber can be diluted by the diluter unit 17, and precise pressure regulating valve during this
Aerosol particle subnumber flowing velocity on the 10 adjustable filtrates, meets the requirements so as to control flow, then passes through institute
State cooperate on diluter unit 17 and the precise pressure regulating valve 10 adjusting flow reflect to the upstream counter 18 with it is described
In downstream counter 19, to count to it, then data be can reflect on the display screen, so as to by beating
Print machine prints it, is then passed through the processed air of the precise pressure regulating valve 10 and enters in the flow cell 101,
Then it is flow in the vacuum unit 4 by the switching valve 3, above-mentioned step is mainly used to test the air that mask is born
Resistance and efficiency after test flow is adjusted, can pass through the pressure difference test meter 22 then by respirator belt to the end mould 21 first
Correct mould 21 carries out air-breathing test, then can carry out breath tester, institute to the head mould 21 by the pressure difference test meter 22
The data for stating the test of 21 tidal air of a mould can reflect that the control of breathing instrument 24 can be through in the process by display screen
The respiratory flow unit 23 is crossed to control the flow of 21 tidal air of head mould, until it meets the requirements, it is then remaining
Air can be entered with switching valve 3 in the vacuum unit 4, facilitate subsequent use.
Claims (2)
1. a kind of mask strainability tester, including mask efficiency drag measurement fixture and tidal air drag measurement module；Its
Be characterized in that: the mask efficiency drag measurement fixture includes power supply, and compressed air processing unit, institute are connected on the power supply
It states and is connected with generator unit on compressed air processing unit, the generator unit is equipped with test fixture, the test clip
Tool is equipped with pressure differential upstream point and pressure difference downstream point, is connected with diluter unit and precise pressure regulating valve, institute on the test fixture
It states diluter unit to connect to power supply, the diluter unit is equipped with upstream counter and downstream counter, the upstream meter
It is connected with main control unit on number device, display screen is connected on the main control unit, the main control unit is equipped with operating unit, institute
It states downstream counter and the main control unit is electrically connected, the precise pressure regulating valve is equipped with flow cell, the breathing vapour lock
Power measurement module includes head mould；The head mould is equipped with pressure difference test meter, and the pressure difference test meter connects to power supply, the pressure difference
Measuring instrument and the pressure differential upstream point and pressure difference downstream point are electrically connected, and the head mould is equipped with respiratory flow unit, institute
Respiratory flow unit is stated equipped with control of breathing instrument, the control of breathing instrument is equipped with switching valve, the flow cell with it is described
Switching valve is connected by pipeline, and the mask efficiency drag measurement fixture and the tidal air drag measurement module pass through switching valve
It carries out gas exchanges and concentrates；Vacuum unit is connected in the switching valve.
2. mask strainability tester as described in claim 1, it is characterised in that: the filtrate clamped on the test fixture
Validity test area be 100cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821536078.5U CN209117537U (en) | 2018-09-20 | 2018-09-20 | A kind of mask strainability tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821536078.5U CN209117537U (en) | 2018-09-20 | 2018-09-20 | A kind of mask strainability tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209117537U true CN209117537U (en) | 2019-07-16 |
Family
ID=67199009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821536078.5U Expired - Fee Related CN209117537U (en) | 2018-09-20 | 2018-09-20 | A kind of mask strainability tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209117537U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929213A (en) * | 2020-07-11 | 2020-11-13 | 黎明职业大学 | Gauze mask filters check out test set |
| CN112033877A (en) * | 2020-09-10 | 2020-12-04 | 苏州华达仪器设备有限公司 | Gauze mask filter material integrated test equipment |
| CN112326530A (en) * | 2020-11-05 | 2021-02-05 | 江苏江化聚氨酯产品质量检测有限公司 | Detection apparatus for foam material air transmission rate |
| CN115824930A (en) * | 2023-02-20 | 2023-03-21 | 深圳市信仪旺实业有限公司 | Method for measuring filtering efficiency of dust mask |
-
2018
- 2018-09-20 CN CN201821536078.5U patent/CN209117537U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929213A (en) * | 2020-07-11 | 2020-11-13 | 黎明职业大学 | Gauze mask filters check out test set |
| CN111929213B (en) * | 2020-07-11 | 2022-08-23 | 黎明职业大学 | Gauze mask filters check out test set |
| CN112033877A (en) * | 2020-09-10 | 2020-12-04 | 苏州华达仪器设备有限公司 | Gauze mask filter material integrated test equipment |
| CN112326530A (en) * | 2020-11-05 | 2021-02-05 | 江苏江化聚氨酯产品质量检测有限公司 | Detection apparatus for foam material air transmission rate |
| CN115824930A (en) * | 2023-02-20 | 2023-03-21 | 深圳市信仪旺实业有限公司 | Method for measuring filtering efficiency of dust mask |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200911 Address after: 200000 Building 2, No. 6488 Tingwei Road, Jinshan District, Shanghai (Hangzhou Bay North Bank Industrial Park) Patentee after: Shanghai Shaoyun information technology consulting center Address before: 215010 No. 88 Zhenbei Road, Tong'an Town, Suzhou High-tech Zone, Jiangsu Province Patentee before: SUZHOU BAJIUYUHAO MATERIAL TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190716 Termination date: 20210920 |