CN111467698A - Escape system - Google Patents
Escape system Download PDFInfo
- Publication number
- CN111467698A CN111467698A CN201910069802.0A CN201910069802A CN111467698A CN 111467698 A CN111467698 A CN 111467698A CN 201910069802 A CN201910069802 A CN 201910069802A CN 111467698 A CN111467698 A CN 111467698A
- Authority
- CN
- China
- Prior art keywords
- hood
- escape system
- valve
- head cover
- pressure
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 13
- 239000007779 soft material Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 abstract description 46
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003570 air Substances 0.000 description 34
- 238000001914 filtration Methods 0.000 description 9
- 231100000331 toxic Toxicity 0.000 description 5
- 230000002588 toxic effect Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000009970 fire resistant effect Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- 239000002341 toxic gas Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 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
- A62B18/02—Masks
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention provides a civil escape system which comprises a gas cylinder, a cylinder valve pressure reducer, an air supply pipeline and a head cover, wherein an exhaust valve and a neck sealing body are arranged on the head cover, the gas cylinder is connected with the cylinder valve pressure reducer, the air supply pipeline is connected with the head cover, the air supply flow of the gas cylinder is 15-40L/min, the gas cylinder of the escape system is small in size and convenient to carry, effective escape time is guaranteed while less air supply flow is provided, the oxygen supply amount in the head cover meets the requirement of a human body and always keeps positive pressure, and the head cover is small in size, convenient to wear and excellent in overall service performance.
Description
Technical Field
The invention relates to a civil escape system, in particular to a respiratory-assisted escape system.
Background
Along with economic development in recent years, the urbanization level of China is continuously improved, the contradiction between urban population increase and urban construction land supply shortage is prominent, and in order to alleviate the contradiction, people's living places tend to be high-level. In addition, the living conditions of people are continuously improved at present. House interior decorations, furniture articles and furnishing articles are all constantly abundant. The improvement of living conditions greatly improves the living comfort of people, but has fire safety hidden trouble at the same time. The main reasons are: 1) the house interior, furniture and furnishing are mostly combustible materials such as wood, plastics and fabrics. When a fire occurs, these materials burn to release toxic and harmful gases. 2) People's place of residence is in the high level. When a fire occurs, people need a certain time to escape from the accident scene.
In reality, in many fire accidents, accident personnel are not burned out, but suffocated to die due to toxic and harmful gas. Therefore, it is very important to equip residential escape systems in residential areas such as entertainment, stores and houses. When a fire disaster occurs, the user can wear the system and can quickly escape from the scene without being harmed by toxic and harmful gases.
At present, common escape systems in the market are divided into a filtering type escape system and an air supply type escape system, and the two types of escape systems have different working principles. The filtering type mainly filters toxic and harmful gas components in the ambient air, so that users can breathe safe air. The types of the forms are various, but the structures are the same and different, the filtering type mainly adopts an aluminum foil head cover to protect the head, and the head cover is provided with a canister. Air in the dangerous environment is filtered by the canister and enters the hood for the escaper to breathe. The air supply type is mainly used for breathing by users through a self-contained safe air source. The air supply type generally comprises an air bottle, a bottle valve pressure reducer, an air supply pipeline and a head cover. The high-pressure gas in the gas cylinder is converted into medium pressure through the pressure reducer of the cylinder valve, and the output gas enters the head cover through the gas supply pipeline for breathing of a user. The exhaled air mixture is exhausted through an exhalation valve on the hood.
The existing filtering type escape system is provided with a filtering tank, activated carbon is filled in the filtering tank as a main component, and chemical agents such as copper, silver, chromium metal oxides and the like are impregnated on the surface of pores of the activated carbon. However, the components of the filtered toxic gas are different in different types of filter tanks. However, the indoor decoration and furnishing articles comprise combustible materials such as wood, plastics, textiles, fibers and the like, various harmful gases can be generated by the combustion of the materials, different types of filtering type escape systems on the market at present can only filter certain toxic gases, and cannot filter all toxic and harmful gases, the filtering effect is good, and even if the escape is assisted, the filtering type escape systems can still damage human bodies to a certain extent. In addition, after a user wears the head cover, the volume of gas in the head cover is reduced when the user inhales, negative pressure is formed in the head cover, the neck sealing of the head cover cannot achieve 100% sealing, surrounding harmful gas can enter the head cover from the neck sealing part without passing through the filter tank, and therefore the life safety of the user is endangered.
The existing air supply type escape system is provided with an air supply source, a hood is in positive pressure in the working process, the risk that toxic gas harms life safety of users can be overcome, but most of the existing air supply type escape systems adopt 2.2L aluminum alloy air cylinders with the air cylinder working pressure of 20MPa, the air cylinders are large in size and heavy in weight, and the use performance of the users is not better met.
Disclosure of Invention
In order to solve the problems, the invention provides an escape system which comprises a gas cylinder, a cylinder valve pressure reducer, a gas supply pipeline and a head cover, wherein the head cover is provided with a gas discharge valve, the gas cylinder is connected with the cylinder valve pressure reducer, the gas supply pipeline is connected with the head cover, the gas supply flow of the gas cylinder is smaller than the suction flow of a human body, and the preferable gas supply flow of the gas cylinder is 15-40L/min.
Preferably, the hood comprises a hood shell and a hood lining, wherein the hood shell is made of hard materials, and the hood lining is made of soft materials.
Preferably, the hood outer shell is connected to a hood inner liner having a volume less than or equal to the volume of the interior cavity of the hood outer shell.
Preferably, an exhaust valve is arranged on the hood lining, and an exhaust safety valve is arranged on the hood shell.
Preferably, the volume of the inner cavity of the hood is 10-20L, and the effective volume of the inner cavity of the hood is not less than 3-8L, preferably 5L.
Preferably, the opening pressure of the exhaust valve is 100-700Pa, preferably 600-700 Pa.
Preferably, the working pressure of the gas cylinder is 20-30 Mpa, and the nominal volume is 0.5-2L.
Preferably, the hole diameter of the output throttling hole of the cylinder valve pressure reducer is 0.5-1 mm.
Preferably, the hood further comprises a window and a neck sealing body, the neck sealing body is of an inflatable structure and is integrally in a ring shape after inflation, the outer diameter of the ring is 265-305 mm, preferably 285mm, and the linear diameter of the ring is 50-150mm, preferably 120 mm.
Preferably, the neck sealing body has a pressure valve, and the opening pressure of the pressure valve of the neck sealing body is 1000 to 2500Pa, preferably 1200 to 1500 Pa.
Compared with the existing escape system in the market, the escape system provided by the invention has the advantages of smaller volume, lighter weight, sufficient air supply time and greatly improved use efficiency. The hood shell is made of hard material polycarbonate, so that the hood is better in protection to the head. Meanwhile, the hood lining is made of soft materials, the size of the hood is reduced under the condition that the pressure in the hood cavity is always in positive pressure, the use performance is enhanced, and the safety escape accident site of users is efficiently guaranteed.
Drawings
Fig. 1 is a schematic structural view of an escape system according to the present invention.
Fig. 2 is a schematic structural view of the cylinder valve pressure reducer of the present invention.
FIG. 3 is a schematic view of the construction of the hood of the present invention.
Detailed Description
Exemplary embodiments that embody features and advantages of the invention are described in detail below. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.
According to the figure 1, the escape system provided by the invention comprises a gas cylinder 1, a cylinder valve pressure reducer 2, a gas supply pipeline 3 and a head cap 4, according to an embodiment of the invention, the gas cylinder 1 and the cylinder valve pressure reducer 2 are connected through threads, but not limited thereto, and can be connected in a manner of adopting a buckle or the like according to actual needs, the cylinder valve pressure reducer 2 and the gas supply pipeline 3 are connected through threads, but not limited thereto, and can be connected in a manner of adopting a buckle, a taper fit or an interference fit or the like according to actual needs, the gas supply pipeline 3 and the head cap 4 are connected through a quick connection interface, the quick connection interface is a common quick connection interface in the prior art, detailed description is not made herein, the gas supply flow of the escape system is 15-40L/min, and the use time of users can be guaranteed to be more than 10 minutes.
According to a specific embodiment of the invention, the working pressure of the gas cylinder 1 is 20-30 Mpa, and the volume of the gas cylinder is 0.5L-2L. as a preferred embodiment of the invention, the outer diameter of the spherical structure of the gas cylinder is 138mm, the distance from the cylinder opening to the sphere center is 85mm, the cylinder opening is a circular opening, and the outer diameter is 32.5mm, but not limited thereto, the size and the shape of the gas cylinder can be changed according to actual needs, the volume of the gas cylinder is determined by the actual gas supply flow, the working pressure and the service time, and the relationship between the two satisfies the following formula, that the service time is [ the working pressure (Mpa) of the gas cylinder with the nominal volume (liter) of × gas cylinder ] [ the gas supply flow (liter/min) of × 0.098.098 (Mpa) ], preferably, the gas cylinder can be a carbon fiber material wound composite gas cylinder, or an aluminum alloy gas cylinder, but not limited thereto.
According to the figure 2, the cylinder valve pressure reducer 2 adopted by the invention comprises a pressure reducer body 21, a safety valve 22, an air supply pipeline connecting interface 23, a pressure gauge 24, an air charging interface 25 and a switch knob 26, wherein the pressure gauge 24 is used for displaying the pressure in the air cylinder and is convenient for a user to observe, the air charging interface 25 is used for charging the air cylinder, and the switch knob 26 can conveniently realize air supply and closing.
According to fig. 3, as an embodiment of the invention, the hood 4 further comprises a hood shell 41 and a hood liner 42, the hood shell and the liner are connected with each other, the hood shell is made of a hard fireproof material, preferably polycarbonate, the hood liner is made of a soft material, one or more of TPU, silicone rubber and polyethylene plastic materials can be selected, the thickness of the liner is 0.1mm-1mm, the liner made of the soft material can ensure that the liner deforms to a certain extent when the supply air flow is smaller than the suction air flow required by a human body, even if the gas exhaled by a user is not completely exhausted from the hood, the pressure in the hood is correspondingly reduced, the soft material ensures that the hood deforms when the supply air flow is smaller than the suction air flow of the human body, and further ensures that the hood is always in a positive pressure, the volume of the hood liner 42 can be kept to be consistent with the volume of the hood shell 41, i.e. the hood and the liner are connected at the top end or bottom end, the hood is entirely fitted over the head of the human head, preferably, the hood, the liner may only be a portion of the shell, the shell is only a portion of the shell, the shell is smaller than the shell, the shell is preferably a shell, the shell is preferably shell, the shell is preferably a shell, the shell is preferably shell, the shell is preferably the shell, the shell is preferably shell, the shell is preferably the shell, the shell is preferably shell, the shell is preferably the shell.
As another preferred embodiment of the present invention, the lower portion of the hood (opposite the top) also includes a neck seal 46, a neck seal pressure valve 47, and an air inlet 48. The neck seal 46 is of an inflatable construction, and when in use, air is supplied into the seal from the air supply port, the seal begins to expand, and after the neck is sealed, the pressure valve at the neck seal is opened to supply air into the hood. The neck sealing body is provided with a pressure valve, and the opening pressure is 1000 Pa-2500 Pa, preferably 1200-1500 Pa. The neck sealing body is of an approximately circular ring structure surrounding the neck in a circle, the circular ring sealing body can be sleeved on the neck, the outer diameter of a circular ring of the neck sealing body is 265-305 mm, preferably 285mm, the wire diameter of the circular ring is 50-150mm, preferably 95-130mm, more preferably 120mm, the circular ring is made of silicon rubber or TPU materials, and the sealing effect of the neck is effectively guaranteed. Compared with the traditional hood, the automatic neck sealing body provided by the invention has the advantages that when a user uses the automatic neck sealing body, the user only needs to cover the hood on the head, the neck sealing body of the hood can automatically complete the neck sealing, and the using performance is safer. In addition, a fire-resistant protective cover 49 is attached to the hood and made of a fire-resistant material to prevent the liner from being ignited by a fire when the liner is made of a non-fire-resistant material.
Experimental example 1
The table shows that under the air supply flow of the invention, the oxygen concentration in the hood is maintained to be more than 18%, and the minimum pressure in the hood is in a positive pressure state.
| Air supply flow L/min | 15.2 | 17 | 18 | 24 | 35 |
| Cylinder volume L | 0.5 | 0.55 | 0.58 | 1.17 | 1.71 |
| Pressure Mpa of the gas cylinder | 30 | 30 | 30 | 20 | 20 |
| Hood lumen effective volume L | 3 | 5 | 5 | 6 | 8 |
| Oxygen concentration (%) | 18.2 | 18.5 | 18.5 | 19 | 21 |
| Minimum pressure pa in hood | 10 | 24 | 24 | 48 | 70 |
Table-oxygen concentration and head cap pressure conditions at different supply flows
According to the escape system provided by the invention, under the condition that the air supply flow is 10L/min-40L/min, through testing, the pressure in the hood is always in a positive pressure state within 10min of air supply time, and real person testing is carried out according to actual parameters and working conditions, the oxygen concentration in the hood is always above 18%, so that the breathing requirement of a human body is met.
The foregoing description of certain preferred embodiments of the invention has been presented with reference to the drawings. It should be understood by those of ordinary skill in the art that the specific constructions and processes illustrated in the foregoing detailed description are exemplary only, and are not limiting. Furthermore, the various features shown above can be combined in various possible ways to form new solutions, or other modifications, by a person skilled in the art, all falling within the scope of the present invention.
Claims (11)
1. The utility model provides a system of fleing, includes gas cylinder, cylinder valve pressure reducer, air supply line and hood, the hood has discharge valve and neck seal, the gas cylinder is connected with the cylinder valve pressure reducer, the air supply line is connected with the hood, gas cylinder air feed flow is 15~ 40L/min.
2. The escape system of claim 1 wherein: the head cover comprises a head cover shell and a head cover lining, wherein the head cover shell is made of hard materials, and the head cover lining is made of soft materials.
3. The escape system of claim 2 wherein: the hood shell is connected with the hood lining, and the volume of the hood lining is smaller than or equal to the volume of the inner cavity of the hood shell.
4. The escape system of claim 2: the exhaust valve is arranged on the hood lining, and an exhaust safety valve is arranged on the hood shell.
5. The escape system of claim 1 wherein the volume of the interior of the hood is 10-20L, and the effective volume of the interior of the hood is not less than 3-8L, preferably 5L.
6. The escape system of claim 1 wherein: the hood has first biggest overall dimension along human transverse direction, first biggest overall dimension is 265~305mm, preferably 285mm, the hood has the second biggest overall dimension along human longitudinal direction, the second biggest overall dimension is not less than 270 mm.
7. The escape system of claim 4 wherein: the opening pressure of the exhaust valve and the opening pressure of the exhaust safety valve are kept consistent, the opening pressure is 100-700Pa, and 600-700Pa is preferred.
8. The escape system of claim 1, wherein the gas cylinder has a working pressure of 20-30 MPa and a nominal volume of 0.5L-2L.
9. The escape system of claim 1 wherein: the aperture of an output air-saving hole of the cylinder valve pressure reducer is 0.5-1 mm.
10. The escape system of claim 1 wherein: the neck sealing body is of an inflatable structure and is integrally in a ring shape after being inflated, the outer diameter of the ring is 265-305 mm, preferably 285mm, and the linear diameter of the ring is 50-150mm, preferably 120 mm.
11. The escape system of claim 1 wherein: the neck sealing body is provided with a pressure valve, and the opening pressure of the pressure valve of the neck sealing body is 1000-2500 Pa, preferably 1200-1500 Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069802.0A CN111467698A (en) | 2019-01-24 | 2019-01-24 | Escape system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069802.0A CN111467698A (en) | 2019-01-24 | 2019-01-24 | Escape system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111467698A true CN111467698A (en) | 2020-07-31 |
Family
ID=71743943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910069802.0A Pending CN111467698A (en) | 2019-01-24 | 2019-01-24 | Escape system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111467698A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2459027Y (en) * | 2000-12-19 | 2001-11-14 | 林育政 | Life-saving helmet |
| CN102641563A (en) * | 2012-05-03 | 2012-08-22 | 中国人民解放军军事医学科学院卫生装备研究所 | Respiratory protection head cover for emergency escape |
| CN202777501U (en) * | 2012-09-05 | 2013-03-13 | 广州市友安消防科技有限公司 | Respiratory device for emergency escape |
| CN104415478A (en) * | 2013-08-21 | 2015-03-18 | 李庆祯 | Air supply type fire escape mask |
| CN106955431A (en) * | 2017-05-29 | 2017-07-18 | 东台市江海救生消防设备有限公司 | Eebd |
| CN107156992A (en) * | 2017-07-03 | 2017-09-15 | 刘先平 | The Intelligent safety helmet that a kind of disaster relief is used |
| CN107754106A (en) * | 2017-11-13 | 2018-03-06 | 上海依民安全装备有限公司 | A kind of escape system |
| CN108785894A (en) * | 2018-06-26 | 2018-11-13 | 杨东雨 | A kind of fire-fighting life-saving breathing equipment |
| CN208176752U (en) * | 2018-03-28 | 2018-12-04 | 江苏鼎祥船舶装备有限公司 | A kind of Emergency Escape Breathing Device |
| CN210145332U (en) * | 2019-01-24 | 2020-03-17 | 抚顺龙云智能科技有限公司 | Escape system |
-
2019
- 2019-01-24 CN CN201910069802.0A patent/CN111467698A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2459027Y (en) * | 2000-12-19 | 2001-11-14 | 林育政 | Life-saving helmet |
| CN102641563A (en) * | 2012-05-03 | 2012-08-22 | 中国人民解放军军事医学科学院卫生装备研究所 | Respiratory protection head cover for emergency escape |
| CN202777501U (en) * | 2012-09-05 | 2013-03-13 | 广州市友安消防科技有限公司 | Respiratory device for emergency escape |
| CN104415478A (en) * | 2013-08-21 | 2015-03-18 | 李庆祯 | Air supply type fire escape mask |
| CN106955431A (en) * | 2017-05-29 | 2017-07-18 | 东台市江海救生消防设备有限公司 | Eebd |
| CN107156992A (en) * | 2017-07-03 | 2017-09-15 | 刘先平 | The Intelligent safety helmet that a kind of disaster relief is used |
| CN107754106A (en) * | 2017-11-13 | 2018-03-06 | 上海依民安全装备有限公司 | A kind of escape system |
| CN208176752U (en) * | 2018-03-28 | 2018-12-04 | 江苏鼎祥船舶装备有限公司 | A kind of Emergency Escape Breathing Device |
| CN108785894A (en) * | 2018-06-26 | 2018-11-13 | 杨东雨 | A kind of fire-fighting life-saving breathing equipment |
| CN210145332U (en) * | 2019-01-24 | 2020-03-17 | 抚顺龙云智能科技有限公司 | Escape system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210145332U (en) | Escape system | |
| CN106806998A (en) | A kind of positive-pressure type fire-fighting oxygen breathing apparatus | |
| CN201108661Y (en) | Double air bags positive-pressure oxygen respirator | |
| CN206107521U (en) | Half -closed solid oxygen rebreather | |
| CN101647613A (en) | Multifunctional rescue safety helmet capable of supplying oxygen and filtering noxious air | |
| CN102872551A (en) | Nostril breathing type mask with breathing tubes | |
| CN106955431B (en) | Emergency escape respirator | |
| CN207137167U (en) | Positive-pressure air respirator | |
| CN111467698A (en) | Escape system | |
| CN203469253U (en) | Positive-pressure oxygen respirator | |
| CN101532393B (en) | Isolated escape system | |
| CN107754106A (en) | A kind of escape system | |
| CN207708349U (en) | A kind of escape system | |
| CN103263734B (en) | Breathing protection system for mine | |
| CN101653631A (en) | Portable multiuse oxygen supply device | |
| CN212700134U (en) | Multifunctional gas mask | |
| CN205007459U (en) | High temperature resistant fire prevention firefighting rescue is with compression oxygen self -rescuer | |
| CN209898384U (en) | Self-breathing multifunctional helmet | |
| CN103182152A (en) | Positive pressure air respirator for emergency rescue | |
| CN207186937U (en) | Mine self-rescue system | |
| CN203169857U (en) | Positive pressure type air breathing apparatus for emergency rescue | |
| KR20130064974A (en) | Portable oxygen respiratory apparatus | |
| CN206125378U (en) | High -efficient rebreather | |
| CN206214591U (en) | A kind of bellows breathing equipment with sealing cover body | |
| CN201263418Y (en) | Multifunctional rescue protective helmet capable of supplying oxygen and filtering harmful air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |