CN112295128A - Fire control self-rescue respirator - Google Patents
Fire control self-rescue respirator Download PDFInfo
- Publication number
- CN112295128A CN112295128A CN202011235277.4A CN202011235277A CN112295128A CN 112295128 A CN112295128 A CN 112295128A CN 202011235277 A CN202011235277 A CN 202011235277A CN 112295128 A CN112295128 A CN 112295128A
- Authority
- CN
- China
- Prior art keywords
- window
- transparent window
- plate
- rescue respirator
- hood
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 210000004209 hair Anatomy 0.000 claims description 3
- 238000007790 scraping Methods 0.000 abstract description 23
- 239000003595 mist Substances 0.000 description 5
- 230000007306 turnover Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/18—Face protection devices
- A42B3/22—Visors
- A42B3/26—Visors with cleaning means, e.g. wipers ; Movable or interchangeable vision films or sheets
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/10—Valves
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a fire-fighting self-rescue respirator, which structurally comprises a head cover, a transparent window, two head fixing belts, filter tips, a neck sleeve and a breather valve, wherein the transparent window, the filter tips and the head fixing belts are arranged on the head cover, the neck sleeve is movably connected with the head cover, the two breather valves are respectively positioned at two sides of the head cover, a cover cavity and an anti-collision soft layer are arranged inside the head cover, the anti-collision soft layer is arranged on the inner wall of the cover cavity, a fog-scraping device is matched inside the transparent window, the fog-scraping device consists of a scraping plate, a traction shaft, a telescopic connecting pipe and a telescopic cylinder, the scraping plate is connected with the telescopic connecting pipe through the traction shaft, the scraping plate is matched with, under the drive of telescopic cylinder, the scraper blade realizes scraping the fog on the window along the inner wall round trip movement of transparent window, provides a bright sight for a long time for the user and can not appear the blurred condition of sight when using.
Description
Technical Field
The invention relates to the field of fire-fighting equipment, in particular to a self-rescue respirator for fire fighting.
Background
The fire-fighting filtering type self-rescue respirator is a self-supporting open type air respirator, which is widely applied to departments of fire fighting, chemical engineering, ships, petroleum, smelting, warehouses, laboratories, mines and the like, and is used for fire extinguishment, rescue and rescue work, wherein a fire fighter or rescue personnel can safely and effectively extinguish fire in various environments such as dense smoke, toxic gas, steam or oxygen deficiency, a hood is made of flame-retardant cotton cloth, the surface of the hood is coated with an aluminum foil film to resist thermal radiation and prevent the head of an escaper from being damaged by high-temperature radiation in a fire scene, a transparent large eye window is arranged on the hood, the visual field is wide, the escape is convenient, but when the transparent large eye window is used, due to the temperature difference between the inner environment and the outer environment of the hood, gas exhaled by the user can form mist to be diffused in the large eye window, and.
Disclosure of Invention
The invention aims to provide a fire-fighting self-rescue respirator, which is used for solving the technical problem that when a transparent large-eye window is used, due to the difference of the internal and external ambient temperatures of a hood, the gas exhaled by a user can form mist and diffuse in the large-eye window, so that the visual field of the user is blurred.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a fire control self-rescue respirator, its structure includes hood, transparent window, solid bandeau, filter tip, neck cover, breather valve, be equipped with transparent window and filter tip, solid bandeau on the hood, neck cover and hood swing joint, the breather valve is equipped with two, is located the both sides of hood respectively, the inside of hood is equipped with cover chamber, crashproof soft layer, the inner wall in cover chamber is provided with the crashproof soft layer.
Preferably, the fog wiper device is matched with the inside of the transparent window, the fog wiper device comprises a scraper plate, a traction shaft, a telescopic connecting pipe and a telescopic cylinder, the scraper plate is connected with the telescopic connecting pipe through the traction shaft, the telescopic connecting pipe is connected with the telescopic cylinder, the traction shaft and the telescopic connecting pipe are arranged on the inner layer of the anti-collision soft layer, and the scraper plate moves back and forth along the inner wall of the transparent window.
Preferably, the scraper comprises a plate body, bristles, a fixed plate surface and a magnetic block, wherein the plate body is in a quarter-cylinder shape, the bristles are fixed at the bottom of the plate body, the fixed plate surface and the plate body are in an integrated structure, and the magnetic block is arranged on the fixed plate surface.
Preferably, the transparent window comprises a fixed layer, a window, a turning hinge and a folding mechanism, the window is rectangular, the horizontal end of the window is hinged with the fixed layer through the turning hinge, and the two sides of the window are provided with the folding mechanism.
Preferably, the folding mechanism comprises a sucker, a pressure rod, a clamping plate and a shifting piece, the sucker and two sides of the window are fixedly adsorbed, the sucker and the clamping plate are located on the same plane, the shifting piece is hinged to the pressure rod, and the window covers the surface of the clamping plate.
Preferably, the two sides of the clamping plate are provided with sliding grooves, and the sliding grooves are in movable contact with the shifting sheet.
Preferably, the pressure rod is embedded at pressure input ports on two sides of a pressure cavity, the pressure cavity is of a herringbone structure, and the pressure output position of the pressure cavity is connected with the clamping plate.
Preferably, the fixed plate surface is fixed with the traction shaft in a magnetic adsorption manner through a magnetic block.
Compared with the prior art, the invention has the following beneficial effects:
1. the scraper plate is matched with the telescopic cylinder through the traction shaft and the telescopic connecting pipe, and under the driving of the telescopic cylinder, the scraper plate moves back and forth along the inner wall of the transparent window to scrape off mist on the window, so that a bright sight line is provided for a long time for a user, and the condition that the sight line is not fuzzy when the window is used is avoided.
2. The scraper is provided with the plate body, the bristles and the magnetic blocks, the bristles are rubber sheets, the efficiency is higher in mist scraping, and the magnetic blocks and the traction shaft are more convenient to replace the plate body in a fixing mode.
3. The transparent window is provided with the turnover hinge and the opening and closing mechanism, wherein the opening and closing mechanism is positioned at two sides of the window, namely the initial position of the fog wiper device, the window is stably fixed on the transparent window through the sucker, a pressure rod arranged on the opening and closing mechanism is matched with the clamping plate and the pressure cavity, the pressure cavity is in a herringbone structure, the two sides of the pressure cavity are matched with the pressure rod, gas in the pressure cavity is downwards extruded through the pressure rod to pop out the clamping plate through the middle protruding position, the clamping plate upwards jacks up the window, the window is matched with the turnover hinge and is turned over while being popped up but cannot fall off, so that accidental damage to the window can be guaranteed, and the window which is convenient to open is more favorable for replacing the fog wiper device.
Drawings
Fig. 1 is a schematic structural diagram of a fire-fighting self-rescue respirator of the invention.
FIG. 2 is a schematic top view of the interior of the hood of the present invention.
Fig. 3 is a schematic structural view of the mist scraping device of the present invention.
Fig. 4 is a schematic perspective view of the squeegee according to the present invention.
FIG. 5 is a schematic view of a transparent window of the present invention.
FIG. 6 is a side view of the folding mechanism of the present invention.
In the figure: the multifunctional respirator comprises a hood 1, a transparent window 2, a head fixing belt 3, a filter tip 4, a neck sleeve 5, a breather valve 6, a hood cavity 11, a soft anti-collision layer 12, a fog scraping device 21, a scraping plate 211, a traction shaft 212, a telescopic connecting pipe 213, a telescopic cylinder 214, a plate body 11a, bristles 11b, a fixed plate surface 11c, a magnetic block 11d, a fixed layer 2a, a window 2b, a turnover hinge 2c, a folding mechanism 2d, a sucking disc 2d1, a pressure lever 2d2, a clamping plate 2d3, a shifting plate 2d4, a sliding groove a and a pressure cavity b.
Detailed Description
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on or indirectly connected to the other element, and when an element is referred to as being "connected to" the other element, it can be directly connected to or indirectly connected to the other element.
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
As shown in fig. 1-6, the invention provides a fire-fighting self-rescue respirator, which structurally comprises a head cover 1, a transparent window 2, a head fixing band 3, a filter 4, a neck cover 5 and a breather valve 6, wherein the head cover 1 is provided with the transparent window 2, the filter 4 and the head fixing band 3, the neck cover 5 is movably connected with the head cover 1, the breather valve 6 is provided with two parts which are respectively positioned at two sides of the head cover 1, a cover cavity 11 and an anti-collision soft layer 12 are arranged inside the head cover 1, the inner wall of the cover cavity 11 is provided with the anti-collision soft layer 12, a fog-scraping device 21 is matched inside the transparent window 2, the fog-scraping device 21 consists of a scraping plate 211, a traction shaft 212, a telescopic connecting pipe 213 and a telescopic cylinder 214, the scraping plate 211 is connected with the telescopic connecting pipe 213 through the traction shaft 212, the telescopic connecting pipe 213 is connected with the telescopic cylinder 214, the traction shaft 212 and the telescopic, the scraping plate 211 moves back and forth along the inner wall of the transparent window 2, the scraping plate 211 comprises a plate body 11a, bristles 11b, a fixed plate surface 11c and a magnetic block 11d, the plate body 11a is in a quarter-cylinder shape, the bristles 11b are fixed at the bottom of the plate body 11a, the fixed plate surface 11c and the plate body 11a are in an integrated structure, the magnetic block 11d is arranged on the fixed plate surface 11c, the transparent window 2 comprises a fixed layer 2a, a window 2b, a turnover hinge 2c and a folding mechanism 2d, the window 2b is in a rectangular shape, the transverse horizontal end of the window 2b is hinged with the fixed layer 2a through the turnover hinge 2c, folding mechanisms 2d are arranged on two sides of the window 2b, each folding mechanism 2d comprises a suction disc 2d1, a pressing rod 2d2, a clamping plate 2d3 and a shifting plate 2d4, the suction discs 2d1 are fixedly adsorbed on two sides of the window 2b, the sucking disc 2d1 and the snap-gauge 2d3 are located on the same plane, the shifting piece 2d4 is hinged on the pressing rod 2d2, the window 2b covers the surface of the snap-gauge 2d3, sliding grooves a are arranged on two sides of the snap-gauge 2d3 and movably contacted with the shifting piece 2d4, the pressing rod 2d2 is embedded in pressure input ports on two sides of a pressure cavity b, the pressure cavity b is in a chevron structure, the pressure output position of the pressure cavity b is connected with the snap-gauge 2d3, and the fixed plate surface 11c is fixed with the traction shaft 212 through a magnetic block 11d in a magnetic adsorption mode.
The implementation of the fire-fighting self-rescue respirator provided by the invention is described in detail as follows:
the user puts the head into the head cover 1, in the using process, the human body can breathe continuously, the exhaled air is distributed on the transparent window 2 in a fog shape due to the temperature difference between the inside and the outside, the sight line of the human body is blurred, in order to avoid the situation, the fog-scraping device 21 is arranged inside the transparent window 2, when the fog-scraping device 21 is used, the telescopic cylinder 214 is started firstly, the whole traction shaft 212 is driven by the telescopic cylinder 214 to drive the scraping plate 211 to move back and forth along the inner wall of the window 2b, in the moving process, the brush hairs 11b arranged on the scraping plate 211 are tightly contacted with the inner wall of the window 2b, the fog on the inner wall of the window 2b is effectively removed under the condition without noise, a bright sight line is provided for the user, the escape is more convenient, and after the scraping plate 211 is used for a certain time, the thickness of the scraping plate 211 is ground, so the scraping plate 211 needs to, in order to facilitate the replacement of the scraper 211, the window 2b of the present invention is engaged with the detaching mechanism 2d through the turning hinge 2c, because the fog scraper 21 is mainly disposed at both sides of the inner wall of the window 2b, the user only needs to pull up the pulling piece 2d4 and press the pressing rod 2d2 downwards, the air in the pressure chamber b flows towards the middle vertical direction under the pressure of the pressing rod 2d2, respectively, the clamping plate 2d3 engaged with the middle protrusion is lifted upwards by the flowing air, and because both sides of the window 2b are tightly fixed by the suction cup 2d1 and just cover the clamping plate 2d3, the lifted clamping plate 2d3 brings the fixed window 2b upwards, and under the support of the turning hinge 2c, the window 2b is effectively opened, the opened window 2b just exposes the fog scraper 21, at this time, the worn scraper 211 only needs to be taken out, and then, a new scraper 211 is installed, because the scraper 211 adopts the magnetic block 11d for adsorption and fixation, and the openable window 2b is combined, the replacement time of the scraper 211 is greatly saved, the efficiency is higher, and the operation is more portable.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a fire control self-rescue respirator which characterized in that: its structure includes hood (1), transparent window (2), solid bandeau (3), filter tip (4), neck cover (5), breather valve (6), be equipped with transparent window (2) and filter tip (4), solid bandeau (3) on hood (1), neck cover (5) and hood (1) swing joint, breather valve (6) are equipped with two, are located the both sides of hood (1) respectively, the inside of hood (1) is equipped with cover chamber (11), the soft layer of anticollision (12), the inner wall of cover chamber (11) is provided with the soft layer of anticollision (12).
2. A fire fighting self-rescue respirator according to claim 1, characterized in that: the inside cooperation of transparent window (2) has the fog to scrape device (21), the fog is scraped device (21) and is constituteed by scraper blade (211), traction shaft (212), flexible takeover (213), telescopic cylinder (214), scraper blade (211) are connected with flexible takeover (213) through traction shaft (212), flexible takeover (213) are connected with telescopic cylinder (214), traction shaft (212) and flexible takeover (213) establish the inlayer in soft layer of anticollision (12), scraper blade (211) is along the inner wall round trip movement of transparent window (2).
3. A fire fighting self-rescue respirator according to claim 2, characterized in that: scraper blade (211) are including plate body (11a), brush hair (11b), fixed face (11c), magnetic path (11d), plate body (11a) are the quarter cylindric, the bottom of plate body (11a) is fixed with brush hair (11b), fixed face (11c) and plate body (11a) structure as an organic whole, be equipped with magnetic path (11d) on fixed face (11 c).
4. A fire fighting self-rescue respirator according to claim 1, characterized in that: transparent window (2) comprise fixed bed (2a), window (2b), upset hinge (2c), folding mechanism (2d), window (2b) are the rectangle form, the horizontal end of window (2b) is equipped with and articulates with fixed bed (2a) through upset hinge (2c) and is connected, the both sides of window (2b) are equipped with folding mechanism (2 d).
5. A fire fighting self-rescue respirator according to claim 4, characterized in that: the folding mechanism (2d) comprises a sucker (2d1), a pressure lever (2d2), a clamping plate (2d3) and a shifting plate (2d4), wherein the sucker (2d1) and two sides of the window (2b) are fixedly adsorbed, the sucker (2d1) and the clamping plate (2d3) are located on the same plane, the shifting plate (2d4) is hinged to the pressure lever (2d2), and the window (2b) covers the surface of the clamping plate (2d 3).
6. A fire fighting self-rescue respirator according to claim 5, characterized in that: the two sides of the clamping plate (2d3) are provided with sliding grooves (a), and the sliding grooves (a) are movably contacted with the shifting plate (2d 4).
7. A fire fighting self-rescue respirator according to claim 5, characterized in that: the pressure rod (2d2) is embedded at pressure input ports at two sides of a pressure cavity (b), the pressure cavity (b) is of a herringbone structure, and the pressure output position of the pressure cavity (b) is connected with the clamping plate (2d 3).
8. A fire fighting self-rescue respirator according to claim 3, characterized in that: the fixed plate surface (11c) is fixed with the traction shaft (212) in a magnetic adsorption mode through the magnetic block (11 d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011235277.4A CN112295128B (en) | 2020-11-09 | 2020-11-09 | Fire control self-rescue respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011235277.4A CN112295128B (en) | 2020-11-09 | 2020-11-09 | Fire control self-rescue respirator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112295128A true CN112295128A (en) | 2021-02-02 |
| CN112295128B CN112295128B (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011235277.4A Active CN112295128B (en) | 2020-11-09 | 2020-11-09 | Fire control self-rescue respirator |
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| Country | Link |
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| CN (1) | CN112295128B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046449A (en) * | 1990-03-07 | 1990-10-31 | 陈凤声 | Face not being wetted raincoat |
| US20040040561A1 (en) * | 2002-08-27 | 2004-03-04 | Amad Tayebi | Full face mask |
| CN200990890Y (en) * | 2006-12-14 | 2007-12-19 | 孙诗豪 | Helmet |
| CN202942559U (en) * | 2012-11-09 | 2013-05-22 | 上海宝亚安全装备有限公司 | Mask with demisting function |
| CN103623517A (en) * | 2013-12-18 | 2014-03-12 | 无锡同春新能源科技有限公司 | Anti-haze helmet with nano anti-fog film observation window and micro air purifier |
| CN104544683A (en) * | 2013-10-16 | 2015-04-29 | 斐智玲 | Motorcycle helmet |
| US20150290480A1 (en) * | 2014-04-10 | 2015-10-15 | Amron International, Inc. | Neck seal for a gas treatment hood |
| US20150359678A1 (en) * | 2014-06-11 | 2015-12-17 | MaryAnn Terranova | Detachable Welding Face Mask |
| CN205848757U (en) * | 2016-07-21 | 2017-01-04 | 武汉新芯集成电路制造有限公司 | A kind of protective mast |
| CN108465171A (en) * | 2018-05-23 | 2018-08-31 | 江苏源控全程消防有限公司 | A kind of saving oneself respirator |
| CN208660176U (en) * | 2018-07-19 | 2019-03-29 | 北京隆镝科技有限责任公司 | It is a kind of novel except water mist type air respiratorresuscitator mask |
| CN210472821U (en) * | 2019-05-23 | 2020-05-08 | 中国石油天然气股份有限公司 | Respirator face guard and positive pressure respirator |
| CN211452066U (en) * | 2020-01-17 | 2020-09-08 | 福建泉州海滨防护装备有限公司 | Anti-riot helmet of using of falling |
-
2020
- 2020-11-09 CN CN202011235277.4A patent/CN112295128B/en active Active
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|---|---|---|---|---|
| CN1046449A (en) * | 1990-03-07 | 1990-10-31 | 陈凤声 | Face not being wetted raincoat |
| US20040040561A1 (en) * | 2002-08-27 | 2004-03-04 | Amad Tayebi | Full face mask |
| CN200990890Y (en) * | 2006-12-14 | 2007-12-19 | 孙诗豪 | Helmet |
| CN202942559U (en) * | 2012-11-09 | 2013-05-22 | 上海宝亚安全装备有限公司 | Mask with demisting function |
| CN104544683A (en) * | 2013-10-16 | 2015-04-29 | 斐智玲 | Motorcycle helmet |
| CN103623517A (en) * | 2013-12-18 | 2014-03-12 | 无锡同春新能源科技有限公司 | Anti-haze helmet with nano anti-fog film observation window and micro air purifier |
| US20150290480A1 (en) * | 2014-04-10 | 2015-10-15 | Amron International, Inc. | Neck seal for a gas treatment hood |
| US20150359678A1 (en) * | 2014-06-11 | 2015-12-17 | MaryAnn Terranova | Detachable Welding Face Mask |
| CN205848757U (en) * | 2016-07-21 | 2017-01-04 | 武汉新芯集成电路制造有限公司 | A kind of protective mast |
| CN108465171A (en) * | 2018-05-23 | 2018-08-31 | 江苏源控全程消防有限公司 | A kind of saving oneself respirator |
| CN208660176U (en) * | 2018-07-19 | 2019-03-29 | 北京隆镝科技有限责任公司 | It is a kind of novel except water mist type air respiratorresuscitator mask |
| CN210472821U (en) * | 2019-05-23 | 2020-05-08 | 中国石油天然气股份有限公司 | Respirator face guard and positive pressure respirator |
| CN211452066U (en) * | 2020-01-17 | 2020-09-08 | 福建泉州海滨防护装备有限公司 | Anti-riot helmet of using of falling |
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|---|
| 杨胜强等: "《矿井粉尘防治》", 28 February 2015, 中国矿业大学出版社 * |
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| Publication number | Publication date |
|---|---|
| CN112295128B (en) | 2021-12-14 |
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