CN201394290Y - Chamber type positive pressure oxygen breathing apparatus - Google Patents
Chamber type positive pressure oxygen breathing apparatus Download PDFInfo
- Publication number
- CN201394290Y CN201394290Y CN2009201028278U CN200920102827U CN201394290Y CN 201394290 Y CN201394290 Y CN 201394290Y CN 2009201028278 U CN2009201028278 U CN 2009201028278U CN 200920102827 U CN200920102827 U CN 200920102827U CN 201394290 Y CN201394290 Y CN 201394290Y
- Authority
- CN
- China
- Prior art keywords
- storehouse
- valve
- breathing
- oxygen
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses chamber type positive pressure oxygen breathing apparatus, which belongs to survival equipment. In the apparatus, a breathing-in hose is communicated with the lower part ofa breathing chamber, a breathing-out hose is communicated with the upper part of the breathing chamber, a heat insulating sheath is arranged on the outer side of an annular cooling core, an air passage is formed between the heat insulating sheath and the wall of the breathing chamber, a purifying tank is arranged at the center of the cooling core, a pressure reducer is connected with a six-way body, and six inlet/outlet ports communicated with the central hollow cavity of the six-way body are arranged on the six-way body and are connected with a medium pressure output end of the pressure reducer, a safety valve, an adjustable proportional oxygen supply system, an automatic replenishment valve connecting pipe, an alarm medium pressure pipe and a manual replenishment valve medium pressure pipe, respectively. The breathing apparatus has the characteristics of comfort breathing, safe use, and convenient inspection.
Description
Technical field
The utility model relates to a kind of lifesaving appliance, is specially a kind of storehouse formula positive pressure oxygen respirator.
Background technology
The positive pressure oxygen respirator that public mine rescue and fire-fighting, chemical defence are used is a kind of closed circuit respiratory circulatory system that is hedged off from the outer world, and the time wears for people operation or rescue in the toxic and harmful environment.Whole respiratory system is the closed cycle that is hedged off from the outer world, during use, and the Ca (OH) in carbon dioxide that human body is breathed out and the peace and quiet jar
2The gas and the oxygen mix that produce behind the generation chemical reaction, the oxygen gas mixture in the time of can providing human body respiration.The breathing storehouse of present storehouse formula positive pressure oxygen respirator mostly is annular, and the annulus middle part is divided into upper and lower storehouse two parts by dividing plate, is communicated with by the cannelure of breathing on the bulkhead between the upper and lower storehouse.Gas enters through exhaust tube and breathes on the storehouse storehouse exhalation vents to dividing plate during expiration, after removing carbon dioxide by peace and quiet jar again, gas is gone into Xia Cang from breathing storehouse circumferential annular concentrated flow, producing by voltage stabilizing membrane combination and positive pressing spring can be for the gas pressure of human body respiration, gas enters the external cooling tank from tube connector, enters air intake duct for human body respiration after cooling.The connected mode of this cooling tank external causes the pipeline path length, dismounting inconvenience, not easy to clean, and air-flow has also caused the increase of expiratory resistance from last storehouse to the flow direction in storehouse down, and the comfortableness of breathing is poor.Pneumatic assembly belongs to the vitals of oxygen system, and present storehouse formula oxygen breathing apparatus Pneumatic assembly is too complicated, and weight is big, safe overpressure system inconvenience maintenance and adjustment; Middle pressure pipe road is connected the improper gas leakage that causes easily with low-pressure system.The automatic supply establishment of present storehouse formula positive pressure oxygen respirator adopts tire air needle type structure, and this structure can make the user feel that air feed lags behind, and respiratory system intakes easily, and manually device for supplying also has the shortcoming of easy water inlet.
Summary of the invention
The utility model for solve existing storehouse formula positive pressure oxygen respirator respiratory resistance big, breathe in the storehouse water inlet easily and detect and adjust inconvenient technical problem, a kind of storehouse formula positive pressure oxygen respirator is provided, and this respirator has the characteristics comfortable, safe in utilization, easy to detect of breathing.
The technical solution adopted in the utility model is: storehouse formula positive pressure oxygen respirator, comprise face shield, breathe the storehouse, be communicated with face shield and expiration flexible pipe and the inhaling hose of breathing the storehouse, be arranged on the peace and quiet jar of breathing storehouse portion on the storehouse, the cooling core, be arranged on the voltage stabilizing diaphragm of breathing storehouse portion under the storehouse, positive pressing spring, and by oxygen cylinder, pressure reducer, alarm, safety valve, air bleeding valve, the adjustable quantitative oxygen system, automatic replenishing valve, manual replenish valve, the oxygen feed system that Pneumatic assembly is formed, described expiration flexible pipe is communicated with breathing bottom, storehouse, inhaling hose is communicated with breathing top, storehouse, annular cooling core arranged outside thermal insulation cover, form gas passage between thermal insulation cover and the breathing bulkhead, the peace and quiet central authorities that are potted in the cooling core, pressure reducer connects six entire bodies, six entire bodies are provided with six import and export that are communicated with six entire body center cavities, and six import and export connect the middle pressure output of pressure reducer respectively, safety valve, the adjustable quantitative oxygen system, the automatic replenishing valve tube connector, pressure pipe in pressure pipe and the manual replenish valve in the alarm.
During use, open the oxygen cylinder switch, oxygen is given breathing cabin top, sustaining supply new fresh oxygen with the flow of 1.5L/min by breathing storehouse air intake duct confession by the six adjustable quantitative oxygen systems that lead in the combination after the pressure reducer decompression.During expiration, gas enters the storehouse portion under the storehouse of breathing by face shield through the expiration flexible pipe, gas calcium hydroxide when peace and quiet jar has absorbed the carbon dioxide in the gas, when air-breathing, positive pressing spring promotes the voltage stabilizing diaphragm assurance system malleation value that moves upward, gas by the gas passage between thermal insulation road and the breathing storehouse, becomes to contain rich oxygen with the fresh oxygen mix of adjustable quantitative oxygen system output after breathing the cooling of top, storehouse cooling core, enter face shield by inhaling hose and use for the people.
The storehouse formula positive pressure oxygen respirator that the utility model is announced has following characteristics: breathe the installing space that is provided with the cooling core in the storehouse, the volume and the pipeline path of respirator have been reduced, the expiration mouth of pipe and the air-breathing mouth of pipe are located at Xia Cang and the Shang Cang that breathes the storehouse respectively, reduced respiratory resistance, the comfortableness that the user breathes is better.Press the output connecting interface to be arranged on six entire bodies in the major part, reduced pipe interface.Automatically on supply establishment and the manual replenish valve non-return valve is housed, effectively prevents the oxygen system water inlet, improved security, the reliability of oxygen system.The respirator overall volume is littler, weight saving, and the rescue team member bears more comfortable.
Description of drawings
Fig. 1 is a storehouse formula positive pressure oxygen respirator schematic diagram.
Fig. 2 is a storehouse formula positive pressure oxygen respirator structural representation.
Fig. 3 is that storehouse formula positive pressure oxygen respirator is breathed the chamber structure schematic diagram.
Fig. 4 is a storehouse formula positive pressure oxygen respirator cooling cored structure schematic diagram.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6 is a storehouse formula positive pressure oxygen respirator automatic replenishing valve structural representation.
Fig. 7 is a storehouse formula positive pressure oxygen respirator adjustable quantitative oxygen system structural representation.
Fig. 8 is a storehouse formula positive pressure oxygen respirator Pneumatic assembly structural representation.
Fig. 9 is the vertical view of Fig. 8.
Among the figure, the 1-face shield; 2-breathes the storehouse; 3-expiration flexible pipe; The 4-inhaling hose; Peace and quiet jar of 5-; The 6-cooling tank; 6-cools off core; 7-voltage stabilizing diaphragm; The positive pressing spring of 8-; The 9-oxygen cylinder; The 10-pressure reducer; The 11-alarm; The 12-safety valve; The 13-air bleeding valve; 14-adjustable quantitative oxygen system; The 15-automatic replenishing valve; The manual replenish valve of 16-; The 17-Pneumatic assembly; 18-thermal insulation cover; 19-six entire bodies; The 20-non-return valve; The manual supply joint of 21-; The 22-non-return valve; The 23-annular bin; The 24-expiration mouth of pipe; The air-breathing mouth of pipe of 25-; The 26-oxygen supply mouth of pipe; The 27-hand is mended the mouth of pipe; The 28-draining mouth of pipe; The 29-dividing plate; The 30-macropore; 31-is from mending the valve installing hole; The 32-cooling core body; The 33-groove; The 34-filling block; 35-is from mending valve body; 36-is from mending valve rod; 37-is from mending valve; The 38-reverse stop valve; The 39-spring; The quantitative valve rod of 40-; The 41-quantitative valve; The 42-spring; The 43-piston; The 44-pressure spring; 45-six entire bodies; The 46-adjusting nut; The 47-aperture; 48-threeway combination; 49-high-voltage and current-limitation valve; 50-chest table.
The specific embodiment
Storehouse formula positive pressure oxygen respirator, as Fig. 1, shown in 2, comprise face shield 1, breathe storehouse 2, be communicated with face shield and expiration flexible pipe 3 and the inhaling hose 4 of breathing the storehouse, be arranged on the peace and quiet jar 5 of breathing storehouse portion on the storehouse, cooling tank, be contained in the cooling core 6 in the cooling tank, be arranged on the voltage stabilizing diaphragm 7 of breathing storehouse portion under the storehouse, positive pressing spring 8, and by oxygen cylinder 9, pressure reducer 10, alarm 11, safety valve 12, air bleeding valve 13, adjustable quantitative oxygen system 14, automatic replenishing valve 15, manual replenish valve 16, the oxygen feed system that Pneumatic assembly 17 is formed, expiration flexible pipe 3 is communicated with breathing 2 bottoms, storehouse, inhaling hose 4 is communicated with breathing 2 tops, storehouse, annular cooling core 6 arranged outside thermal insulations cover 18, form gas passage between thermal insulation cover 18 and breathing storehouse 2 walls, peace and quiet jar 5 central authorities that are contained in cooling core 6, pressure reducer 10 connects six entire bodies 19, six entire bodies 19 are provided with six import and export that are communicated with six entire bodies, 19 center cavities, and six import and export connect the middle pressure output of pressure reducer 10 respectively, safety valve 12, adjustable quantitative oxygen system 14, automatic replenishing valve 15 tube connectors, pressure pipe in pressure pipe and the manual replenish valve 16 in the alarm 11.
Storehouse formula positive pressure oxygen respirator is breathed storehouse 2, as shown in Figure 3, comprise annular bin 23, be located at the expiration mouth of pipe 24, the air-breathing mouth of pipe 25 and the oxygen supply mouth of pipe 26 on the annular bulkhead, the dividing plate 29 that hand is mended the mouth of pipe 27, the draining mouth of pipe 28 and annular bin 23 is separated into Shang Cang and following storehouse from the middle part, have a macropore 30 on the dividing plate 29, dividing plate is provided with from mending valve installing hole 31, the expiration mouth of pipe 24 is communicated with following storehouse, and the air-breathing mouth of pipe 25 is communicated with last storehouse.Manually replenish valve 16 is communicated with storehouse on the breathing storehouse 2 by manual supply joint 21, breathes storehouse 2 inwalls the non-return valve 22 (as shown in Figure 1, 2) that is communicated with manual supply joint 21 is housed.Shown in Fig. 4,5, cooling core 6 comprises annular cavity cooling core body 32 and the thermal insulation cover 18 that is fixed on the cooling core body periphery, and thermal insulation is overlapped 18 outsides and had semi-circular recesses 33, the built-in equally distributed filling block 34 of cooling core body.Cool off pack in the core 6 neutral sponge filling block and cooling fluid, cooling core body 32 is fixed on the periphery of the quiet jar 5 of annular, thermal insulation cover 18 is sleeved on cooling core body 32 outsides, the gas of breathing out enters from breathing 2 bottoms, storehouse, enters to breathe on the storehouse 2 through quiet jar 5 and flows out by the air-breathing mouth of pipe 25 of the semi-circular recesses 33 on the thermal insulation cover 18 from cooling core body 32 belows behind the storehouse.
Automatic replenishing valve 15 is contained in cooling core 6 belows, and non-return valve (20) is housed on the automatic replenishing valve 15.As shown in Figure 6, automatic replenishing valve 15 comprises from mending valve body 35, from mending valve rod 36 and non-return valve 20, be provided with air inlet from mending valve body 35 1 sides, be provided with gas passage and cavity that is communicated with gas passage that is communicated with air inlet from mending valve body 35 inside, the cavity below is provided with from mending valve 37, dress is from mending valve rod 36 in the cavity, be one and slide and extend to oneself with the cavity sealing and mend the connecting rod of valve body 35 outer ends from mending valve rod 36 bottoms, the middle part is and mends the cone that valve 37 cooperates certainly, top connects spring, spring is connected with the cavity top, connect non-return valve 20 from the opposite side of mending valve body 35, non-return valve 20 is made up of with the spring 39 that is connected with reverse stop valve 38 with the reverse stop valve 38 in being contained in the check valve case cavity check valve case, check valve case 35 is provided with the gas outlet, and the gas outlet is communicated with gas passage.Oxygen enters from mending the valve body air inlet certainly, when air feed is not enough, is breathing upwards to remove under the promotion of voltage stabilizing diaphragm 7 support plates of 2 bottoms, storehouse and opening from mending valve rod 36, oxygen enters non-return valve 20 through gas passage, reverse stop valve 38 is opened under gas pressure, gas flows out the gas outlet to breathing storehouse 2 top air feed, and reverse stop valve 38 is closed when stopping oxygen supply.Automatic replenishing valve is contained on the breathing storehouse dividing plate 29 of cooling core 6 belows.Manually replenish valve 16 is communicated with storehouse on the breathing storehouse 2 by manual supply joint 21, breathes storehouse 2 inwalls the non-return valve 22 that is communicated with manual supply joint 21 is housed, and the effect of non-return valve is to prevent that condensed water from entering pneumatic line, makes gas circuit safer.When breathing storehouse 2 internal gas pressures rose to setting value, voltage stabilizing diaphragm 7 with positive pressing spring 8 compressions, made air bleeding valve 13 contacts that are installed in voltage stabilizing diaphragm 7 support plate central authorities run into the lower house boss under the effect of pressure, and air bleeding valve 13 is backed down, automatic vent.Wait to breathe storehouse 2 internal pressures drop to setting value following after, voltage stabilizing diaphragm 7 is pushed the shrinking away from theshell body under the effect of positive pressing spring 8, the housing boss face is left in air bleeding valve 13 contacts, moment stops exhaust.
Storehouse formula positive pressure oxygen respirator adjustable quantitative oxygen system 14 is arranged on the Pneumatic assembly of breathing outside the storehouse 2 17.As shown in Figure 7, storehouse formula positive pressure oxygen respirator adjustable quantitative oxygen system 14 comprises by gas feed, gas vent, the adjustable quantitative oxygen supply valve that quantitative valve rod 40 and quantitative valve 41 are formed, the adjustable quantitative oxygen supply valve is located on six entire bodies 19, six-way valve 5 centers are a cavity, valve casing is provided with six interfaces, the big chamber and the loculus that are provided with gas passage in six entire bodies 19 and are communicated with gas passage, set metered valve bar 40 in the loculus, quantitatively valve rod 40 lower ends connect spring 42, the upper end be contained in six entire bodies, 19 big chambeies in piston 43 be connected, quantitatively valve rod 40 middle parts are provided with the boss that cooperates with quantitative valve 41, piston 43 upper ends connect pressure spring 44, pressure spring 44 other ends are connected with adjusting nut 45 on being contained in valve shell, quantitative valve rod 40, gas passage in gap that forms between piston 43 and six entire bodies 19 and six entire bodies 19, gas vent is communicated with, and the outer end of gas vent is the aperture 46 that a diameter is 0.35mm.
When using this storehouse formula positive pressure oxygen respirator, open oxygen cylinder 9 switches, oxygen enters breathing storehouse 2 on storehouse portion, sustaining supply new fresh oxygen by the adjustable quantitative oxygen system 14 on six entire bodies 19 with the flow of 1.5L/min through pressure reducer 10 decompression backs.During expiration, gas enters the 2 times storehouse portions in storehouse of breathing by face shield 1 through expiration flexible pipe 3, upwards enters storehouse portion from peace and quiet jar of 5 bottoms again, and gas has absorbed the carbon dioxide in the gas by peace and quiet jar of 5 o'clock calcium hydroxide.When air-breathing, positive pressing spring 8 promotes the voltage stabilizing diaphragms 7 assurance system malleation value that moves upward, gas breathe 2 tops, storehouse through cooling core 6 cooling backs by the groove 33 between thermal insulation cover 18 and the breathing storehouse, become to contain rich oxygen with the fresh oxygen mix of adjustable quantitative oxygen system 14 outputs, enter face shield 1 by inhaling hose 4 and use for the people.Shown in Fig. 8,9, six import and export on six entire bodies 19 connect in the middle pressure output, safety valve 12, adjustable quantitative oxygen system 14, automatic replenishing valve 15 tube connectors, alarm 11 of pressure reducer 10 pressure pipe and manual pressure pipe in the replenish valve 16 respectively.High pressure oxygen flows into six entire bodies 19, a tunnel and breathes 2 tops, storehouse through the adjustable quantitative oxygen supply valve input that is located on six entire bodies 19 after pressure reducer 10 decompressions; One the road flows into the safety valve 12 be arranged on six entire bodies 19, and gas is from safety valve 12 pressure releases during the outer fault superpressure of central Hair Fixer business; One the tunnel feeds the intermediate voltage terminal of alarm 11, sound generation source is provided for alarm 11; Another road medium pressure gas is supplied with the hand complement system, and pressing manual replenish valve 16 when the oxygen supply fault occurring can be to breathing storehouse 2 top oxygen supplys.High pressure on the pressure reducer 10 exports threeway combination 48 to, and threeway enters chest table 50 after making up 48 one tunnel inflow high-voltage and current-limitation valves 49, shows gas pressure in the gas cylinder, for the monitoring of rescue team member to the oxygen reserves.Another road is connected with alarm 11 high-pressure sides, provides air pressure signal to alarm 11, sends chimes of doom when gas cylinder reserves pressure reaches minimum alarm setting value, and the prompting rescue team member withdraws from the disaster area.
Claims (4)
1. storehouse formula positive pressure oxygen respirator, comprise face shield (1), breathe storehouse (2), be communicated with face shield (1) and expiration flexible pipe (3) and the inhaling hose (4) of breathing storehouse (2), be arranged on and breathe peace and quiet jar (5) that storehouse portion is gone up in storehouse (2), cooling core (6), be arranged on and breathe storehouse (2) the voltage stabilizing diaphragm (7) of storehouse portion down, positive pressing spring (8), and by oxygen cylinder (9), pressure reducer (10), alarm (11), safety valve (12), air bleeding valve (13), adjustable quantitative oxygen system (14), automatic replenishing valve (15), manual replenish valve (16), the oxygen feed system that Pneumatic assembly (17) is formed, it is characterized in that: described expiration flexible pipe (3) is communicated with breathing bottom, storehouse (2), inhaling hose (4) is communicated with breathing top, storehouse (2), annular cooling core (6) arranged outside thermal insulation cover (18), form gas passage between thermal insulation cover (18) and breathing storehouse (2) wall, peace and quiet jar (5) are contained in the central authorities of cooling core (6), pressure reducer (10) connects six entire bodies (19), six entire bodies (19) are provided with six import and export that are communicated with six entire bodies (19) center cavity, and six import and export connect the middle pressure output of pressure reducer (10) respectively, safety valve (12), adjustable quantitative oxygen system (14), automatic replenishing valve (15) tube connector, pressure pipe in pressure pipe and the manual replenish valve (16) in the alarm (11).
2. a kind of storehouse according to claim 1 formula positive pressure oxygen respirator is characterized in that: described automatic replenishing valve (15) is contained in cooling core (6) below, and non-return valve (20) is housed on the automatic replenishing valve (15).
3. a kind of storehouse according to claim 1 and 2 formula positive pressure oxygen respirator, it is characterized in that: described manual replenish valve (16) is gone up the storehouse by manual supply joint (21) and breathing storehouse (2) and is communicated with, and breathes storehouse (2) inwall the non-return valve (22) that is communicated with manual supply joint (21) is housed.
4. a kind of storehouse according to claim 1 and 2 formula positive pressure oxygen respirator is characterized in that: described adjustable quantitative oxygen system (14) is arranged on to be breathed on the outer Pneumatic assembly (17) in storehouse (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201028278U CN201394290Y (en) | 2009-05-14 | 2009-05-14 | Chamber type positive pressure oxygen breathing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201028278U CN201394290Y (en) | 2009-05-14 | 2009-05-14 | Chamber type positive pressure oxygen breathing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201394290Y true CN201394290Y (en) | 2010-02-03 |
Family
ID=41616778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201028278U Expired - Fee Related CN201394290Y (en) | 2009-05-14 | 2009-05-14 | Chamber type positive pressure oxygen breathing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201394290Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205174A (en) * | 2010-03-31 | 2011-10-05 | 上海依格安全装备有限公司 | Vibrating alarm air respirator |
| CN102671318A (en) * | 2012-05-14 | 2012-09-19 | 北京安氧特科技有限公司 | Chemical oxygen-making respirator for normal temperature phase change material refrigeration |
| CN103157202A (en) * | 2012-07-27 | 2013-06-19 | 上海宝亚安全装备有限公司 | Removable life-saving system for mining |
| CN106943687A (en) * | 2017-05-11 | 2017-07-14 | 北京花兰德科技咨询服务有限公司 | Fireman's emergency self-saving device |
| CN107224685A (en) * | 2016-04-14 | 2017-10-03 | 湖北航天化学技术研究所 | High altitude bailout apparatus of oxygen supply |
| CN113134147A (en) * | 2020-01-20 | 2021-07-20 | 复旦大学附属华山医院北院 | A intelligent face guard for vital sign monitoring |
| CN114588566A (en) * | 2022-01-20 | 2022-06-07 | 抚顺华腾防护装备制造有限公司 | Positive pressure oxygen respirator pressure differential regulation and control type automatic oxygen supply device |
-
2009
- 2009-05-14 CN CN2009201028278U patent/CN201394290Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205174A (en) * | 2010-03-31 | 2011-10-05 | 上海依格安全装备有限公司 | Vibrating alarm air respirator |
| CN102205174B (en) * | 2010-03-31 | 2013-07-31 | 上海依格安全装备有限公司 | Vibrating alarm air respirator |
| CN102671318A (en) * | 2012-05-14 | 2012-09-19 | 北京安氧特科技有限公司 | Chemical oxygen-making respirator for normal temperature phase change material refrigeration |
| CN102671318B (en) * | 2012-05-14 | 2014-07-23 | 北京安氧特科技有限公司 | Chemical oxygen-making respirator for normal temperature phase change material refrigeration |
| CN103157202A (en) * | 2012-07-27 | 2013-06-19 | 上海宝亚安全装备有限公司 | Removable life-saving system for mining |
| CN103157202B (en) * | 2012-07-27 | 2015-03-25 | 上海宝亚安全装备有限公司 | Removable life-saving system for mining |
| CN107224685A (en) * | 2016-04-14 | 2017-10-03 | 湖北航天化学技术研究所 | High altitude bailout apparatus of oxygen supply |
| CN107224685B (en) * | 2016-04-14 | 2020-05-08 | 湖北航天化学技术研究所 | Oxygen supply device for high-altitude parachuting |
| CN106943687A (en) * | 2017-05-11 | 2017-07-14 | 北京花兰德科技咨询服务有限公司 | Fireman's emergency self-saving device |
| CN113134147A (en) * | 2020-01-20 | 2021-07-20 | 复旦大学附属华山医院北院 | A intelligent face guard for vital sign monitoring |
| CN114588566A (en) * | 2022-01-20 | 2022-06-07 | 抚顺华腾防护装备制造有限公司 | Positive pressure oxygen respirator pressure differential regulation and control type automatic oxygen supply device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201394290Y (en) | Chamber type positive pressure oxygen breathing apparatus | |
| CN204050717U (en) | A kind of fireproof garment | |
| CN205814901U (en) | A kind of Self-saving breather of chemical oxygen | |
| WO2021223578A1 (en) | Totally-closed breathing system for long-time use by manned submersible passengers | |
| CN203750046U (en) | Fire protection filtering type self-saving breathing apparatus | |
| CN201108661Y (en) | Double air bags positive-pressure oxygen respirator | |
| CN201055615Y (en) | Enclosed circulation positive-pressure oxygen respirator | |
| CN2778323Y (en) | Chemical oxygen inhalation apparatus for forest fire fighter | |
| CN202028062U (en) | Chemical oxygen firefighting and self-rescuing respirator | |
| CN204170306U (en) | Locating Type chemical oxygen self-rescuer | |
| CN205073547U (en) | Portable oxygen -uptaking device | |
| CN104225825A (en) | New-structure fixed chemical oxygen self-rescuer | |
| CN2933464Y (en) | Positive pressure oxygen respirator | |
| CN211097130U (en) | Positive pressure type chemical oxygen operation respirator | |
| CN203777441U (en) | Novel medical respirator | |
| CN111388893B (en) | Waist-carrying portable respirator | |
| CN111346310B (en) | Pressure-controllable respirator | |
| CN111184954B (en) | Portable self-rescue respirator | |
| CN202961556U (en) | Positive pressure oxygen breathing device | |
| RU147285U1 (en) | HOSE UNIT | |
| CN211912480U (en) | Breathing device with pressure released at front end | |
| CN207722253U (en) | A kind of oxygen breathing apparatus is saved oneself device for supplying | |
| CN211863606U (en) | Respirator with automatic pressure relief function | |
| CN204815424U (en) | Novel give birth to oxygen formula respirator | |
| CN201394296Y (en) | Water discharge valve of chamber type positive pressure oxygen breathing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20180514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |