CN210834590U - Breathing resistance test system for protective mask - Google Patents
Breathing resistance test system for protective mask Download PDFInfo
- Publication number
- CN210834590U CN210834590U CN201921381569.1U CN201921381569U CN210834590U CN 210834590 U CN210834590 U CN 210834590U CN 201921381569 U CN201921381569 U CN 201921381569U CN 210834590 U CN210834590 U CN 210834590U
- Authority
- CN
- China
- Prior art keywords
- breathing
- valve
- test system
- resistance test
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model discloses a respirator respiratory resistance test system: the device comprises an experimental head die and a breathing pipeline, wherein a ventilation cavity communicated with the mouth part of the experimental head die is arranged in the experimental head die, and the ventilation cavity and the breathing pipeline are detachably communicated; be provided with sealed switching structure between ventilation cavity and the breathing pipe, the setting can be dismantled at ventilation cavity takeover mouth department to the front end of airtight switching structure, and the sealed setting of airtight switching structure rear end is in the front end of breathing pipe end pipe mouth department. The utility model has the advantages that the sealing switching structure is hermetically connected with the ventilation cavity of the experimental head die, so that the sealing performance of the whole testing system is good, and the test of the breathing resistance of the protective mask is more accurate; meanwhile, the respiratory pipeline can be prevented from being disassembled and replaced, so that the maintenance of the detection system is more labor-saving.
Description
Technical Field
The utility model relates to a respirator performance detection area especially relates to a respirator respiratory resistance test system.
Background
According to the national standard GB2626-2006, the breathing resistance of the protective mask is detected, and in the detection process, due to the fact that the protective mask is different in size, different in form and different in adaptive crowd, the experimental head models in different styles need to be replaced for testing, so that after long-term testing, the air tightness between the experimental head models and the breathing pipeline is poor, and the experimental accuracy is easily influenced; therefore, parts must be replaced, but the breathing pipeline is connected with the testing system and is not easy to disassemble.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects existing in the prior art, the utility model provides a breathing resistance test system of a protective mask can solve the problems.
The technical scheme is as follows: in order to achieve the above object, the utility model discloses a respirator respiratory resistance test system: the device comprises an experimental head die and a breathing pipeline, wherein a ventilation cavity communicated with the mouth part of the experimental head die is arranged in the experimental head die, and the ventilation cavity and the breathing pipeline are detachably communicated; a sealing switching structure is arranged between the ventilation cavity and the breathing pipeline, the front end of the sealing switching structure is detachably arranged at a joint of the ventilation cavity, and the rear end of the sealing switching structure is arranged at a joint of the front end of the breathing pipeline in a sealing manner; the sealing switching structure is in sealing connection with the ventilation cavity of the experimental head die, so that the whole testing system has good sealing performance, and the breathing resistance of the protective mask is more accurately tested; meanwhile, the respiratory pipeline can be prevented from being disassembled and replaced, so that the maintenance of the detection system is more labor-saving.
Furthermore, the sealing and switching structure comprises a front connecting sealing pipe; a plurality of vent holes are formed in the circumference of the side wall of the front end of the front connecting sealing pipe; the front connecting sealing pipe is sleeved with an elastic sealing sleeve, and the elastic sealing sleeve is arranged in a conical shape towards the front end of the front connecting sealing pipe; the front connecting sealing pipe is also provided with an external thread connecting platform which is arranged at the rear end part of the elastic sealing sleeve, and the external diameter of the external thread connecting platform is larger than the maximum external diameter of the elastic sealing sleeve; therefore, the connection sealing performance of the front connection sealing pipe and the connecting pipe opening of the ventilation cavity is good.
Furthermore, a micro-manometer is communicated and arranged in the middle of the breathing pipeline; the tail end of the breathing pipeline is respectively communicated with an inspiration resistance test system and an expiration resistance test system; the test system can separately test the inhalation resistance and the exhalation resistance of the protective mask.
Furthermore, the inspiration resistance testing system comprises a first inspiration valve, a first flow regulating valve, a first flowmeter, a vacuum air pump and a second inspiration valve, wherein the tail end of the breathing pipeline is communicated with the first inspiration valve, the first flow regulating valve, the first flowmeter, the vacuum air pump and the second inspiration valve sequentially through pipelines along the airflow direction; therefore, the mouth of the experimental head die is pumped by the vacuum air pump, and the air suction resistance is measured by the micro-pressure meter.
Furthermore, the expiratory resistance testing system comprises a first expiratory valve, a second flow regulating valve, a second flowmeter, a second expiratory valve and an air compressor, wherein the tail end of the breathing pipeline is sequentially communicated with the first expiratory valve, the second flow regulating valve, the second flowmeter, the second expiratory valve and the air compressor through pipelines in the opposite direction of airflow; air is compressed to the mouth of the experimental head die by an air compressor to exhale, and the exhalation resistance of the experimental head die is measured by a micro-manometer.
Has the advantages that: the protective mask breathing resistance testing system of the utility model is provided with the sealing switching structure between the experimental head die and the breathing pipeline, thus avoiding the wearing of the interface of the breathing pipeline caused by the direct contact of the breathing pipeline and the experimental head die and further prolonging the service life of the breathing pipeline; meanwhile, the cavity of the experimental head die is sealed with the front connecting sealing pipe of the sealing switching structure, so that the whole testing system is good in sealing performance, and the testing of the breathing resistance of the protective mask is more accurate.
Drawings
FIG. 1 is a schematic view of the respiratory resistance test structure of the protective mask of the present invention;
fig. 2 is a schematic view of a connection structure of the sealing transfer structure and the experimental head die of the present invention;
fig. 3 is a schematic structural diagram of the sealing and transferring structure of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A breathing resistance test system for a protective mask as shown in the attached figures 1-3: the device comprises an experiment head die 1 and a breathing pipeline 2, wherein a ventilation cavity 11 communicated with the mouth part of the experiment head die 1 is arranged in the experiment head die 1, and the ventilation cavity 11 and the breathing pipeline 2 are detachably communicated; be provided with sealed switching structure 3 between ventilation cavity 11 and breathing pipe 2, the setting can be dismantled at ventilation cavity 11 mouth of pipe department to the front end of sealed switching structure 3, and the sealed setting of 3 rear ends of sealed switching structure is in the front end mouth of pipe department of breathing pipe 2. Like this through sealed switching structure 3 with experiment head die 1 is connected, avoid breathing pipe 2 and experiment head die 1 direct contact to lead to breathing pipe 2 kneck wearing and tearing, long-term after using only need change sealed switching structure 3 can for entire system's maintenance is more laborsaving.
The sealing adapter structure 3 comprises a front connecting sealing pipe 31; a plurality of vent holes 311 are formed in the circumference of the side wall of the front end of the front connecting sealing pipe 31; an elastic sealing sleeve 32 is sleeved on the front connecting sealing pipe 31, the elastic sealing sleeve 32 is arranged in a conical shape towards the front end of the front connecting sealing pipe 31, and the side wall of the connecting pipe opening of the ventilation cavity 11 is elastically extruded by the elastic sealing sleeve 32 for sealing, so that the tightness of the detection system is improved, and the test structure is more accurate; an external thread connecting table 33 is further arranged on the front connecting sealing pipe 31, the external thread connecting table 33 is arranged at the rear end part of the elastic sealing sleeve 32, and the outer diameter of the external thread connecting table 33 is larger than the maximum outer diameter of the elastic sealing sleeve 32, so that a sealing step is formed between the external thread connecting table and the elastic sealing sleeve, and the sealing effect is further achieved; the connecting air cavity 34 is communicated with the front connecting sealing pipe 31, and the inner diameter of the connecting air cavity 34 is larger than that of the front connecting sealing pipe 31; the rear connecting sealing pipe 35 is bonded by sealant to form a joint of the breathing pipeline 2.
The middle part of the breathing pipeline 2 is communicated with a micro-manometer 4; the tail end of the breathing pipeline 2 is respectively communicated with an inspiration resistance testing system and an expiration resistance testing system, and the testing system can separately test the inspiration resistance and the expiration resistance of the protective mask, so that the testing result is more accurate. The inspiration resistance testing system comprises a first inspiration valve 51, a first flow regulating valve 52, a first flow meter 53, a vacuum air pump 54 and a second inspiration valve 55, wherein the tail end of the breathing pipeline 2 is communicated with the first inspiration valve 51, the first flow regulating valve 52, the first flow meter 53, the vacuum air pump 54 and the second inspiration valve 55 sequentially along the airflow direction. The expiratory resistance testing system comprises a first expiratory valve 61, a second flow regulating valve 62, a second flow meter 63, a second expiratory valve 64 and an air compressor 65, wherein the tail end of the breathing pipeline 2 is sequentially communicated with the first expiratory valve 61, the second flow regulating valve 62, the second flow meter 63, the second expiratory valve 64 and the air compressor 65 through pipelines in the opposite direction of air flow. When the inhalation resistance of the protective mask is measured, the first exhalation valve 61 and the second exhalation valve 64 are closed, the first inhalation valve 51 and the second inhalation valve 55 are opened, the mouth of the experimental head model 1 is aspirated by the vacuum aspiration pump 54, the air flow in the pipeline is adjusted by the first flow adjusting valve 52, and the inhalation resistance of the experimental head model is read on the micro-pressure gauge 4; when the breathing resistance of the protective mask needs to be measured, the first air suction valve 51 and the second air suction valve 55 are closed, the first exhalation valve 61 and the second exhalation valve 64 are opened, the mouth of the experimental head model 1 is exhaled through the air compressor 65, the air flow in the pipeline is regulated through the second flow regulating valve 62, and then the breathing resistance of the experimental head model is read on the micro-pressure gauge 4.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (5)
1. The utility model provides a respirator respiratory resistance test system which characterized in that: the experimental head die comprises an experimental head die (1) and a breathing pipeline (2), wherein a ventilation cavity (11) communicated with the mouth part of the experimental head die (1) is arranged in the experimental head die, and the ventilation cavity (11) and the breathing pipeline (2) are detachably communicated; be provided with sealed switching structure (3) between ventilation cavity (11) and breathing pipe (2), the front end of sealed switching structure (3) can be dismantled and set up in ventilation cavity (11) takeover mouth department, and sealed switching structure (3) rear end is sealed to be set up in the front end of breathing pipe (2) takeover mouth department.
2. A respirator respiratory resistance test system according to claim 1, wherein: the sealing switching structure (3) comprises a front connecting sealing pipe (31); a plurality of vent holes (311) are formed in the circumference of the side wall of the front end of the front connecting sealing pipe (31); an elastic sealing sleeve (32) is sleeved on the front connecting sealing pipe (31), and the elastic sealing sleeve (32) is arranged in a conical shape towards the front end of the front connecting sealing pipe (31); the front connecting sealing pipe (31) is further provided with an external thread connecting table (33), the external thread connecting table (33) is arranged at the rear end of the elastic sealing sleeve (32), and the outer diameter of the external thread connecting table (33) is larger than the maximum outer diameter of the elastic sealing sleeve (32).
3. A respirator respiratory resistance test system according to claim 1, wherein: the middle part of the breathing pipeline (2) is communicated with a micro-manometer (4); the tail end of the breathing pipeline (2) is respectively communicated with an inspiration resistance test system and an expiration resistance test system.
4. A respirator respiratory resistance test system according to claim 3, wherein: the inspiration resistance testing system comprises a first inspiration valve (51), a first flow regulating valve (52), a first flowmeter (53), a vacuum air pump (54) and a second inspiration valve (55), wherein the tail end of the breathing pipeline (2) is communicated with the first inspiration valve (51), the first flow regulating valve (52), the first flowmeter (53), the vacuum air pump (54) and the second inspiration valve (55) sequentially through pipelines along the airflow direction.
5. A respirator respiratory resistance test system according to claim 3, wherein: the expiratory resistance testing system comprises a first expiratory valve (61), a second flow regulating valve (62), a second flow meter (63), a second expiratory valve (64) and an air compressor (65), wherein the tail end of the breathing pipeline (2) is communicated with the first expiratory valve (61), the second flow regulating valve (62), the second flow meter (63), the second expiratory valve (64) and the air compressor (65) sequentially through pipelines in the opposite direction of air flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921381569.1U CN210834590U (en) | 2019-08-23 | 2019-08-23 | Breathing resistance test system for protective mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921381569.1U CN210834590U (en) | 2019-08-23 | 2019-08-23 | Breathing resistance test system for protective mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210834590U true CN210834590U (en) | 2020-06-23 |
Family
ID=71251657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921381569.1U Active CN210834590U (en) | 2019-08-23 | 2019-08-23 | Breathing resistance test system for protective mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210834590U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284995A (en) * | 2020-10-14 | 2021-01-29 | 南京工业大学 | Hard metal dust protective mask testing device |
| CN113447081A (en) * | 2021-07-20 | 2021-09-28 | 山西新华防化装备研究院有限公司 | Comprehensive detection device for airtightness, exhalation resistance and inhalation resistance of gas mask |
-
2019
- 2019-08-23 CN CN201921381569.1U patent/CN210834590U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284995A (en) * | 2020-10-14 | 2021-01-29 | 南京工业大学 | Hard metal dust protective mask testing device |
| CN113447081A (en) * | 2021-07-20 | 2021-09-28 | 山西新华防化装备研究院有限公司 | Comprehensive detection device for airtightness, exhalation resistance and inhalation resistance of gas mask |
| CN113447081B (en) * | 2021-07-20 | 2023-11-24 | 山西新华防化装备研究院有限公司 | Comprehensive detection device for tightness, exhalation resistance and inhalation resistance of breathing mask |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210834590U (en) | Breathing resistance test system for protective mask | |
| CN103330962B (en) | A kind of sputum aspirator with simulated respiration function | |
| CN110392589A (en) | The equipment for breathing with differential pressure pick-up | |
| CN211235370U (en) | Respirator breathing resistance detector | |
| CN100482292C (en) | Differential pressure trigger woundless positive pressure respirator | |
| CN109781608A (en) | A kind of mask strainability test device and method | |
| CN208340024U (en) | A kind of novel Respiratory Medicine lung capacity training device | |
| CN106110457A (en) | A kind of sputum elimination machine and respirator system thereof | |
| CN209809251U (en) | Speaking valve | |
| CN204521890U (en) | A kind of endotracheal tube with cuff pressure indicating device | |
| WO2018107567A1 (en) | Pressure indicator | |
| CN219245011U (en) | Comprehensive detector for respirator | |
| CN209575462U (en) | A kind of trachea cannula of quick detection carbon dioxide | |
| CN204709641U (en) | A kind of triplate line for breathing circuit | |
| CN209827861U (en) | Flow sensor and respirator with same | |
| CN205426298U (en) | Automatic school frock of marking of turbine anesthesia machine flow sensor | |
| CN207851012U (en) | A kind of foul smell, which is smelt, distinguishes nose cup | |
| CN204275214U (en) | Have in sealed packet glue-line and be in charge of assembly and breathing equipment thereof | |
| CN116236181A (en) | Lung function instrument | |
| CN209695191U (en) | A kind of oronasal mask for Lung in Newborn Function detection | |
| CN209474618U (en) | A kind of mouth and nose air-flow collection tube | |
| CN105879171B (en) | A kind of positive and negative pressure breathing machine | |
| CN104374686A (en) | Dustproof mask blockage tester | |
| CN209713903U (en) | Attachment device and breathing apparatus | |
| CN204364591U (en) | A kind of Vasculocardiology Deparment respirator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |