CN112730037A - Comprehensive performance testing device for mask - Google Patents
Comprehensive performance testing device for mask Download PDFInfo
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- CN112730037A CN112730037A CN202110121857.9A CN202110121857A CN112730037A CN 112730037 A CN112730037 A CN 112730037A CN 202110121857 A CN202110121857 A CN 202110121857A CN 112730037 A CN112730037 A CN 112730037A
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- mask
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- carrier
- air
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 238000005070 sampling Methods 0.000 claims abstract description 41
- 238000007664 blowing Methods 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims description 24
- 230000007123 defense Effects 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 2
- 239000008187 granular material Substances 0.000 abstract description 8
- 239000013618 particulate matter Substances 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 5
- 238000009864 tensile test Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 14
- 239000012159 carrier gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to a mask comprehensive performance testing device which comprises a base, and an air blowing assembly, a sample assembly, a carrier assembly and a sampling assembly which are sequentially arranged on the base. The carrier subassembly is improved level and is equipped with the carrier pipe, and the one end of carrier pipe can store the unit butt joint with arbitrary sample granule, and the other end supports in the inboard of the gauze mask that awaits measuring, opens arbitrary one or more sample unit during the test to storing the particulate matter in the unit with the sample granule through the air-blowing subassembly and bulging, making partial particulate matter pass carrier pipe in proper order and await measuring the gauze mask, collected by the sample unit at last, realize the separation capability test of gauze mask to the sample granule. Compared with the prior art, the invention can perform a particulate matter bulge test and a mechanical tensile test in a shape-wearing-prevention test scene, compares the influences of different wearing environments and different wearing times on the critical performance of the mask, and can provide reference for the design of products for manufacturers and the use of products by consumers.
Description
Technical Field
The invention relates to a mask testing device, in particular to a mask comprehensive performance testing device.
Background
The existing mask test standard focuses on the evaluation of the original performance of a product, the attention to the performance change possibly occurring in the actual wearing process is less, the selection of the continuous wearing time of the mask by a consumer is mostly according to the suggestions or personal habits of experts, the judgment process is totally based on subjective feelings, and objective basis is lacked. Or only the performance of the mask cloth is tested, and the performance after actual wearing cannot be detected, because the structure of the face and the mask form a closed space after wearing, the test result is completely different from that of a simple material test.
Therefore need urgently to design a gauze mask comprehensive properties testing arrangement who uses the in-service use scene, according to gauze mask in-service use condition, design different gauze mask and wear environment and wearing time, the difference of comparison is worn the environment and is worn the time to the influence of performance key to the gauze mask.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a device for testing the comprehensive performance of a mask, which can realize penetration test and mechanical tensile test of specific particles by matching an air blowing assembly, a sample assembly, a carrier assembly and a sampling assembly, is not easily interfered by the environment during testing, and can realize unification and standardization of particle samples.
The purpose of the invention can be realized by the following technical scheme:
the comprehensive performance testing device for the mask comprises a base, and an air blowing assembly, a sample assembly, a carrier assembly and a sampling assembly which are sequentially arranged on the base;
a gas carrying pipe is horizontally arranged on the carrier assembly, a plurality of sample particle storage units are arranged in the sample assembly, the mask to be tested is worn on the carrier assembly in a shape-proof manner, and a plurality of sampling units are arranged on the sampling assembly;
one end of the gas carrier pipe can be butted with any one sample particle storage unit, the other end of the gas carrier pipe is abutted against the inner side of the mask to be tested, any one or more sampling units are opened during testing, and particulate matters in the sample particle storage unit are blown out through the gas blowing assembly, so that partial particulate matters sequentially pass through the gas carrier pipe and the mask to be tested and are finally collected by the sampling units, and the barrier performance test of the mask to the sample particles is realized;
be equipped with gauze mask tension test module on the carrier subassembly, realize the tension life-span test of gauze mask through mechanical tension.
Further, the sample assembly further comprises a rack body, and the sample particle storage unit is detachably arranged on the rack body.
Further, the sample particle storage unit is of a box structure with screw caps at two ends.
Further, the air-blowing assembly comprises a first air compressor and a nozzle which are connected with each other, and a solenoid valve is arranged between the first air compressor and the nozzle.
Furthermore, the carrier component comprises a frame-shaped frame body, a face defense shell is arranged on the frame-shaped frame body, and the mask to be tested is worn on the face defense shell;
the frame type frame body is further provided with an air pressure sensor, and a pressure measuring point of the air pressure sensor faces to one side of the air carrying pipe close to the face defense type shell.
Further, be equipped with solid fixed ring on the frame type support body, be equipped with the through-hole on the shape shell is prevented to the face, the carrier gas pipe passes in proper order gu fixed ring with the through-hole realizes that the level is spacing.
Furthermore, the mask tension testing module comprises moving blocks arranged on two sides of the frame-shaped frame body, a telescopic rod is arranged between the two moving blocks, two binding ropes of the mask to be tested are fixed on the two moving blocks respectively, and the moving blocks are connected with horizontal driving modules, so that tension life testing of the mask is realized through mechanical tension.
Further, the horizontal driving module comprises an air cylinder, a push rod matched with the air cylinder and a second air compressor, the push rod is connected with the moving block, the second air compressor supplies air to the air cylinder, and an electromagnetic valve is arranged between the second air compressor and the air cylinder.
Further, the sampling assembly further comprises a frame body, and the sampling unit is detachably arranged on the frame body.
Furthermore, the adjusting electric cylinders are arranged below the sample assembly, the carrier assembly and the sampling assembly, and the output rod of each adjusting electric cylinder is connected with the lower ends of the sample assembly, the carrier assembly and the sampling assembly respectively, so that height adjustment is realized.
Compared with the prior art, the invention has the following technical advantages:
1. this technical scheme passes through the cooperation of air-blowing subassembly, sample subassembly, carrier subassembly and sampling subassembly, can realize penetration test and the mechanical tensile test of specific particulate matter, is difficult for receiving the interference of environment during the test, and particulate matter sample all can realize unification and standardization, is favorable to promoting this nonstandard equipment to standard equipment.
2. Can export the pulse gas with human breathing corresponding frequency through the air-blowing subassembly among this technical scheme, this pulse gas stores the particulate matter of unit with the sample granule and bloies for some particulate matters pass the carrier gas pipe in proper order and await measuring the gauze mask, are collected by the sample cell at last, and whole sampling process all is comparatively close with the gauze mask use scene of reality, can realize comparatively accurate test result.
3. This technical scheme can design different gauze masks and wear environment and wear time, under this time (can reach 24 ~ 72h) continuation test, including carrying out particulate matter bulge test and mechanical tensile test, the influence of different wear environment and different wear time to the key performance of gauze mask can provide the reference to the design of product and the use of consumer to the product for the producer.
Drawings
Fig. 1 is a schematic structural diagram of a comprehensive performance testing device for a mask in the technical scheme;
fig. 2 is a schematic structural diagram of a carrier assembly according to the present disclosure.
In the figure: 1. the base, 2, carrier gas pipe, 3, sample granule store the unit, 4, the sample cell, 5, first air compressor, 6, nozzle, 7, frame type support body, 8, face prevent type casing, 9, movable block, 10, telescopic link, 11, push rod, 12, second air compressor, 13, cylinder, 14, adjust the electric jar, 15, baroceptor.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
The comprehensive performance testing device for the mask in the embodiment comprises a base 1, and an air blowing assembly, a sample assembly, a carrier assembly and a sampling assembly which are sequentially arranged on the base 1, and is shown in fig. 1.
Carrier subassembly is improved level and is equipped with carrier gas pipe 2, is equipped with a plurality of sample particles in the sample subassembly and stores unit 3, awaits measuring the gauze mask and prevents the shape and wear on the carrier subassembly, be equipped with a plurality of sampling unit 4 on the sampling subassembly.
One end of the gas carrying pipe 2 can be butted with any one sample particle storage unit 3, referring to fig. 1, the other end is butted against the inner side of the mask to be tested, any one or more sampling units 4 are opened during testing, and particulate matters in the sample particle storage unit 3 are blown out through the gas blowing assembly, so that partial particulate matters sequentially pass through the gas carrying pipe 2 and the mask to be tested, and are finally collected by the sampling units 4, and the mask is tested on the separation performance of the sample particles.
The sample assembly further comprises a rack body, and the sample particle storage unit 3 is detachably arranged on the rack body. The sample particle storage unit 3 is a box structure with screw caps at both ends.
The air blowing assembly comprises a first air compressor 5 and a nozzle 6 which are connected with each other, and a solenoid valve is arranged between the first air compressor 5 and the nozzle 6.
The carrier component comprises a frame-shaped frame body 7, a face protection type shell 8 is arranged on the frame-shaped frame body 7, and the mask to be tested is worn on the face protection type shell 8. An air pressure sensor 15 is further arranged on the frame-shaped frame body 7, and a pressure measuring point of the air pressure sensor 15 faces to one side of the air carrying pipe 2 close to the face defense-shaped shell 8. Be equipped with solid fixed ring on the frame type support body 7, be equipped with the through-hole on the type casing 8 is prevented to the face, carrier pipe 2 passes in proper order gu fixed ring with the through-hole realizes that the level is spacing.
The sampling assembly further comprises a frame body, and the sampling unit 4 is detachably arranged on the frame body. The sample subassembly, carrier subassembly and sampling subassembly below all are equipped with adjusts electric jar 14, every the output rod of adjusting electric jar 14 is connected with the lower extreme of sample subassembly, carrier subassembly and sampling subassembly respectively to this realizes the altitude mixture control.
The carrier assembly is provided with a mask tension testing module, and tension service life testing of the mask is realized through mechanical tension. The mask tension testing module comprises moving blocks 9 arranged on two sides of a frame-shaped frame body 7, referring to fig. 2, a telescopic rod 10 is arranged between the two moving blocks 9, two binding ropes of a mask to be tested are respectively fixed on the two moving blocks 9, and the moving blocks 9 are all connected with a horizontal driving module, so that tension life testing of the mask is realized through mechanical tension. The horizontal driving module comprises an air cylinder 13, a push rod 11 matched with the air cylinder and a second air compressor 12, the push rod 11 is connected with the moving block 9, the second air compressor 12 supplies air to the air cylinder 13, and an electromagnetic valve is arranged between the second air compressor 12 and the air cylinder 13.
When specifically using, will await measuring the gauze mask shape of preventing wearing on the carrier subassembly earlier, be about to await measuring two rope ties of gauze mask are fixed in two movable blocks 9 respectively on, later will need the sample granule of test to store unit 3 and install on the support body that the sample subassembly is still, sample granule stores the sample that contains the tiny granule in the unit 3 and be tested like PM2.5 powder, fungal spore powder etc.. Then, the sampling units 4, i.e. the sampling boxes, are arranged on the corresponding supports, and the sampling units 4 can be vertically arranged on the supports, so that the vertical multi-position sampling is realized. Sampling unit 4 is the box body structure that the unilateral was equipped with the screw cap in fact, directly opens the screw cap after installing well on the support for the opening part orientation of a plurality of sampling unit 4 awaits measuring the gauze mask.
Then, the height of the specific sample particle storage unit 3 is adjusted by the adjusting electric cylinder below the sample assembly so that it corresponds to the nozzle 6, and then the height is adjusted by the adjusting electric cylinder below the carrier assembly so that one end of the gas carrier pipe 2 corresponds to the specific sample particle storage unit 3. Then, an instruction can be sent to the electromagnetic valve at the upstream of the nozzle 6 through an external computer terminal, pulse gas with a frequency corresponding to the breathing of a human body can be output, and the pulse gas bulges the particulate matters in the sample particle storage unit 3, so that part of the particulate matters sequentially pass through the gas carrier pipe 2 and the mask to be tested, and are finally collected by the sampling unit 4. The air pressure sensor 15 acquires the pressure value of one side of the air carrying pipe 2 close to the face defense type shell 8 in real time and the pressure value is used as the test basis of the mask penetration resistance. After sampling, the sampling unit 4 is covered and sent to a detection instrument for detecting particles. Wherein the distance between air-blowing subassembly, sample subassembly, carrier subassembly and the sampling subassembly can be adjusted through moving to it is fixed through the locating pin.
When detecting the physical life of gauze mask, outside computer terminal sends the instruction to the solenoid valve between second air compressor 12 and the cylinder 13 for the cylinder promotes push rod 11 and releases specific distance to both sides, makes the gauze mask that awaits measuring by the horizontal stretching, and the cylinder that this embodiment used is two-way cylinder, and the centre is admitted air, and the piston mouth is located both ends, corresponds with two push rods of both sides respectively. And the reciprocating tensile test of the mask is realized through repeated air intake and exhaust.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A mask comprehensive performance testing device is characterized by comprising a base (1), and an air blowing assembly, a sample assembly, a carrier assembly and a sampling assembly which are sequentially arranged on the base (1);
a gas carrying pipe (2) is horizontally arranged on the carrier assembly, a plurality of sample particle storage units (3) are arranged in the sample assembly, the mask to be tested is worn on the carrier assembly in a shape-proof manner, and a plurality of sampling units (4) are arranged on the sampling assembly;
one end of the gas carrier pipe (2) can be butted with any one sample particle storage unit (3), the other end of the gas carrier pipe is abutted against the inner side of the mask to be tested, any one or more sampling units (4) are opened during testing, particulate matters in the sample particle storage unit (3) are blown out through the gas blowing assembly, so that part of the particulate matters sequentially pass through the gas carrier pipe (2) and the mask to be tested and are finally collected by the sampling units (4), and the mask can test the barrier property of the sample particles;
be equipped with gauze mask tension test module on the carrier subassembly, realize the tension life-span test of gauze mask through mechanical tension.
2. A comprehensive mask performance testing device according to claim 1, wherein the sample assembly further comprises a rack body, and the sample particle storage unit (3) is detachably arranged on the rack body.
3. The mask performance testing device according to claim 2, wherein the sample particle storage unit (3) is a box structure with screw caps at two ends.
4. A mask combination property testing device according to claim 1, wherein the air blowing assembly comprises a first air compressor (5) and a nozzle (6) which are connected with each other, and a solenoid valve is arranged between the first air compressor (5) and the nozzle (6).
5. The comprehensive performance testing device of the mask according to claim 1, wherein the carrier assembly comprises a frame-shaped frame body (7), a face protection shell (8) is arranged on the frame-shaped frame body (7), and the mask to be tested is worn on the face protection shell (8);
the frame type support body (7) is further provided with an air pressure sensor (15), and a pressure measuring point of the air pressure sensor (15) faces to one side, close to the face defense type shell (8), of the air carrying pipe (2).
6. A mask combination property testing device according to claim 5, wherein a fixing ring is arranged on the frame-shaped frame body (7), a through hole is arranged on the face defense-shaped shell (8), and the gas carrying pipe (2) sequentially penetrates through the fixing ring and the through hole to realize horizontal limiting.
7. The mask comprehensive performance testing device according to claim 6, wherein the mask tension testing module comprises moving blocks (9) arranged on two sides of a frame body (7), a telescopic rod (10) is arranged between the two moving blocks (9), two binding ropes of the mask to be tested are respectively fixed on the two moving blocks (9), and horizontal driving modules are connected to the moving blocks (9), so that the mask tension service life testing is realized through mechanical tension.
8. The mask comprehensive performance testing device according to claim 7, wherein the horizontal driving module comprises an air cylinder (13), a push rod (11) matched with the air cylinder, and a second air compressor (12), the push rod (11) is connected with the moving block (9), the second air compressor (12) supplies air to the air cylinder (13), and an electromagnetic valve is arranged between the second air compressor (12) and the air cylinder (13).
9. A device according to claim 1, wherein the sampling assembly further comprises a frame body, and the sampling unit (4) is detachably disposed on the frame body.
10. The mask comprehensive performance testing device according to claim 1, wherein adjusting electric cylinders (14) are arranged below the sample assembly, the carrier assembly and the sampling assembly, and an output rod of each adjusting electric cylinder (14) is connected with the lower ends of the sample assembly, the carrier assembly and the sampling assembly respectively, so that height adjustment is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110121857.9A CN112730037A (en) | 2021-01-28 | 2021-01-28 | Comprehensive performance testing device for mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110121857.9A CN112730037A (en) | 2021-01-28 | 2021-01-28 | Comprehensive performance testing device for mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112730037A true CN112730037A (en) | 2021-04-30 |
Family
ID=75594502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110121857.9A Withdrawn CN112730037A (en) | 2021-01-28 | 2021-01-28 | Comprehensive performance testing device for mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112730037A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758778A (en) * | 2016-03-31 | 2016-07-13 | 范君 | Performance testing system and method for haze-preventing mask |
| CN106501153A (en) * | 2016-10-27 | 2017-03-15 | 合肥福瞳光电科技有限公司 | A kind of anti-dust respirator filter efficiency measuring method |
| CN107741392A (en) * | 2017-09-27 | 2018-02-27 | 浙江省纺织测试研究院 | A kind of mouth mask protection effect method for real-timely testing synchronous with load respiratory resistance |
| CN108801876A (en) * | 2018-06-11 | 2018-11-13 | 生纳科技(上海)有限公司 | The test method of children's mask protection effect |
| CN110320141A (en) * | 2019-05-10 | 2019-10-11 | 中国建筑科学研究院有限公司 | Device and method for detecting air supply quantity and purification performance of electric mask |
| CN111398034A (en) * | 2020-04-08 | 2020-07-10 | 青海省药品检验检测院 | Mask tension tester |
-
2021
- 2021-01-28 CN CN202110121857.9A patent/CN112730037A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758778A (en) * | 2016-03-31 | 2016-07-13 | 范君 | Performance testing system and method for haze-preventing mask |
| CN106501153A (en) * | 2016-10-27 | 2017-03-15 | 合肥福瞳光电科技有限公司 | A kind of anti-dust respirator filter efficiency measuring method |
| CN107741392A (en) * | 2017-09-27 | 2018-02-27 | 浙江省纺织测试研究院 | A kind of mouth mask protection effect method for real-timely testing synchronous with load respiratory resistance |
| CN108801876A (en) * | 2018-06-11 | 2018-11-13 | 生纳科技(上海)有限公司 | The test method of children's mask protection effect |
| CN110320141A (en) * | 2019-05-10 | 2019-10-11 | 中国建筑科学研究院有限公司 | Device and method for detecting air supply quantity and purification performance of electric mask |
| CN111398034A (en) * | 2020-04-08 | 2020-07-10 | 青海省药品检验检测院 | Mask tension tester |
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Application publication date: 20210430 |
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