CN2382427Y - Filter type anti-organic poison gas breathing mask having failure indication - Google Patents
Filter type anti-organic poison gas breathing mask having failure indication Download PDFInfo
- Publication number
- CN2382427Y CN2382427Y CN 99238136 CN99238136U CN2382427Y CN 2382427 Y CN2382427 Y CN 2382427Y CN 99238136 CN99238136 CN 99238136 CN 99238136 U CN99238136 U CN 99238136U CN 2382427 Y CN2382427 Y CN 2382427Y
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- China
- Prior art keywords
- canister
- box
- sensor
- breathing mask
- alarm
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a filter type anti-organic poison gas breathing mask which is composed of an exhalation valve 1, a face mask body 2, a lacing 6 and a canister (box) 5, wherein, a sensor 3 is fixedly installed on a back part in the canister (box) 5, and an alarm 4 is fixed on the periphery of the canister (box) 5; the sensor 3 is connected with the alarm 4 by using conducting wires, and the sensor 3 is a gas sensor which is sensitive to organic poison gas. When filtering material in the canister (box) 5 is saturated to adsorb toxicant, the poison gas can start up a sensing and detecting alarm circuit to alarm by penetrating through the canister (box) 5, and the utility model has the advantages of effectively improving carriers' self-protecting awareness and decreasing occupational poisoning occurrence.
Description
The utility model relates to the breathing mask of the anti-toxic gas of a kind of filtering type
The canister of existing self-absorbing filtering type breathing mask (box) under given conditions, protection useful life to toxic gas such as trichloro-ethylenes is about 40 minutes, but in actual use, be to change once in one month under a lot of situations, and the wearer of mask does not know when canister (box) lost efficacy yet.By literature search, do not find the similar failure indication, losing efficacy shows the breathing mask of Failure Alarm.
The purpose of this utility model just provides a kind of canister (box) of anti-toxic gas breathing mask and can report to the police when protection is lost efficacy, and the breathing mask of the indication of losing efficacy is arranged.
Realize that technical solution of the present utility model is: a kind of anti-toxic gas breathing mask of filtering type that the indication of losing efficacy is arranged, by mask body, outlet valve, frenulum, canister (box) is formed, canister (box) is in the front portion of mask body, and outlet valve is at the front upper part of mask body, and frenulum is fixed on the both sides of mask body, rear portion in canister (box) is installed with sensor, alarm is fixed on the periphery of canister (box), and sensor is connected with lead with alarm, and sensor is a gas sensor.
The utility model has adopted the gas sensor to the toxic gas sensitivity, the toxic gas that sees through gas mask canister (box) is guarded against, see through once detecting toxic gas, send audible alarm immediately by the sensing detection warning circuit, to cause that the wearer notes, show that the filtrate in the canister (box) is saturated to poisonous substance absorption this moment, the filter toxic action can not recur.Originally there is the anti-toxic gas breathing mask of filtering type of the indication of losing efficacy to overcome the poisoning danger that canister (box) is saturated because of filtrate and inefficacy is caused, thereby improved wearer's sense of self-protection effectively, reduce the generation of occupational poisoning.
Adopt sealed dynamic experiment cabinet as experimental provision, promptly in the lucite cabinet of a sealing, 7# standard gypsum capitiform is set, capitiform is worn breathing mask, be placed with sensor in the mask, sensor is connected the sensing detection warning circuit, when sensor was realized warning function, the red eye in the sensing detection warning circuit was bright, otherwise sensor is not judged as warning.Utilize an aspiration pump to make the gas emulation type of respiration in the cabinet pass through breathing mask, come the working condition of test sensor thus.
Trichloro-ethylene is to cause in the organic solvent of occupational poisoning, and is the most typical, toxicity is the strongest, selects trichloro-ethylene to make the experiment medium.According to this experimental provision, carried out a series of test, take by the order of high concentration to low concentration, sensor in trichloro-ethylene concentration more than or equal to 42.57mg/M
3Condition under report to the police.
For explanation originally has the anti-toxic gas breathing mask of filtering type of the indication of losing efficacy toxic gas is had general significance, select for use toluene to make the experiment medium again.By experiment, sensor is responsive to toluene vapor equally, in toluene concentration more than or equal to 30.33mg/M
3Condition under can report to the police, and sensor is not influenced by tidal air in the operating point.
Fig. 1 has the anti-toxic gas breathing mask structure chart of the filtering type of the indication of losing efficacy
Fig. 2 sensing detection warning circuit schematic diagram
Below in conjunction with accompanying drawing the utility model is described in further detail:
According to Fig. 1, Fig. 2 as can be known, a kind of anti-toxic gas breathing mask of filtering type that the indication of losing efficacy is arranged, by mask body 2, outlet valve 1, frenulum 6, canister (box) 5 is formed, canister (box) 5 is in the front portion of mask body 2, and outlet valve 1 is at the front upper part of mask body 2, and frenulum 6 is fixed on the both sides of mask body 2, rear portion in canister (box) 5 is installed with sensor 3, alarm 4 is the periphery of canister (box) 5 fixedly, and sensor 3 is connected with alarm 4 usefulness leads, and sensor 3 is a gas sensor.
The sensing detection warning circuit adopts one-level amplifier FD, and one-level comparator BJ adds driver QD, the mode of buzzer FM.
The using method that the anti-toxic gas breathing mask of filtering type of the indication of losing efficacy is arranged: before entering the poison gas zone breathing mask is worn, adjust a suspensorium 6, mask body 2 and face are obturaged, the attaching plug on the gas mask is inserted battery case, after power supply indicator on the alarm 4 is bright, enter poisonous zone, after operation finishes, leave poisonous zone, the breathing mask attaching plug is extracted from battery case, take off breathing mask, be placed on the special-purpose position, so that subjob is used down
Alert if: filtrate is saturated to poisonous substance absorption in canister (box) 5, and in the time of can not recurring the filter toxic action, poison gas penetrates canister (box) 5 and starts the sensing detection warning circuit.
Type of alarm: till buzzer FM pipes to and breaks away from malicious source or cut off the electricity supply.
Claims (2)
1. one kind has the filtering type of the indication of losing efficacy to prevent the toxic gas breathing mask, by mask body (2), outlet valve (1), frenulum (6), canister (box) (5) is formed, canister (box) (5) is in the front portion of mask body (2), outlet valve (1) is at the front upper part of mask body (2), frenulum (6) is fixed on the both sides of mask body (2), it is characterized in that the rear portion in canister (box) (5) is installed with sensor (3), alarm (4) is fixed on the periphery of canister (box) (5), and sensor (3) is connected with lead with alarm (4).
2. the anti-toxic gas breathing mask of filtering type that the indication of losing efficacy is arranged as claimed in claim 1 is characterized in that sensor (3) is a gas sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99238136 CN2382427Y (en) | 1999-07-21 | 1999-07-21 | Filter type anti-organic poison gas breathing mask having failure indication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99238136 CN2382427Y (en) | 1999-07-21 | 1999-07-21 | Filter type anti-organic poison gas breathing mask having failure indication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2382427Y true CN2382427Y (en) | 2000-06-14 |
Family
ID=34025636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99238136 Expired - Fee Related CN2382427Y (en) | 1999-07-21 | 1999-07-21 | Filter type anti-organic poison gas breathing mask having failure indication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2382427Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103815588A (en) * | 2014-01-26 | 2014-05-28 | 苏州智信通电子科技有限公司 | Filter mask with pollutant concentration measuring and displaying functions |
| CN105288888A (en) * | 2015-11-14 | 2016-02-03 | 无锡清杨机械制造有限公司 | Respiratory mask with filtering and purification functions |
| CN105413076A (en) * | 2015-11-13 | 2016-03-23 | 无锡桥阳机械制造有限公司 | Breathing mask with filtering and purifying functions |
| CN111426620A (en) * | 2020-04-23 | 2020-07-17 | 湖北华强科技有限责任公司 | Canister protection time detection device |
| CN113390688A (en) * | 2021-06-10 | 2021-09-14 | 湖北华强科技股份有限公司 | Gas monitoring device of gas mask and using method |
| CN115054842A (en) * | 2021-12-30 | 2022-09-16 | 无锡灵芯智能科技有限公司 | Breathing mask with double-side poison gas detection function |
-
1999
- 1999-07-21 CN CN 99238136 patent/CN2382427Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103815588A (en) * | 2014-01-26 | 2014-05-28 | 苏州智信通电子科技有限公司 | Filter mask with pollutant concentration measuring and displaying functions |
| CN105413076A (en) * | 2015-11-13 | 2016-03-23 | 无锡桥阳机械制造有限公司 | Breathing mask with filtering and purifying functions |
| CN105288888A (en) * | 2015-11-14 | 2016-02-03 | 无锡清杨机械制造有限公司 | Respiratory mask with filtering and purification functions |
| CN111426620A (en) * | 2020-04-23 | 2020-07-17 | 湖北华强科技有限责任公司 | Canister protection time detection device |
| CN113390688A (en) * | 2021-06-10 | 2021-09-14 | 湖北华强科技股份有限公司 | Gas monitoring device of gas mask and using method |
| CN115054842A (en) * | 2021-12-30 | 2022-09-16 | 无锡灵芯智能科技有限公司 | Breathing mask with double-side poison gas detection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |