CN204352395U - A kind of isolation type chemical-oxygen self-rescuer - Google Patents
A kind of isolation type chemical-oxygen self-rescuer Download PDFInfo
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- CN204352395U CN204352395U CN201420788061.4U CN201420788061U CN204352395U CN 204352395 U CN204352395 U CN 204352395U CN 201420788061 U CN201420788061 U CN 201420788061U CN 204352395 U CN204352395 U CN 204352395U
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- medicinal cupping
- rescuer
- oxygen
- air bag
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Abstract
The utility model relates to a kind of isolation type chemical-oxygen self-rescuer, comprise can, respiratory system, oxygen candle, medicinal cupping and air bag, described respiratory system is communicated with medicinal cupping at the top of medicinal cupping with oxygen candle, air bag is communicated with medicinal cupping in the bottom of medicinal cupping, and respiratory system, oxygen candle, medicinal cupping and air bag are placed in the spatial accommodation of can.The self-rescuer that the utility model proposes is 45min self-rescuer, has carried out systematic research, make this device can meet the requirement of 45min respiratory capacity and breathing time with the device of minimum volume from the size of explosive payload, single unit system and the size of medicinal cupping; In order to strengthen the sealing property of this device, improve for the connected mode between the sealing means of upper and lower covers, the manufacture craft of air bag and each ventilation member, make the sealing property of this device more superior, security performance is high.
Description
Technical field
The utility model relates to colliery safety means, is specifically related to a kind of isolation type chemical-oxygen self-rescuer.
Background technology
The structure of common chemical oxygen self-rescuer mainly comprises the raw oxygen medicine chamber that there is raw oxygen tablet the breathing assembly be arranged in single hull, air bag component, oxygen candle and inside, raw oxygen medicine chamber wherein and oxygen candle are positioned at lower housing portion, and the bottom of raw oxygen medicine chamber and oxygen candle is air chamber in housing, air chamber is by being connected with air bag component, breathe assembly to be communicated with air bag component, during use, operating personnel draws oxygen by the mouthpiece plug breathed in assembly.In Long-Time Service process, find longer between such self-rescuer operationally after have following shortcoming:
(1) device temperature is high;
(2) give birth to oxygen medicine cavity radiating poor performance, the chemical reaction heat in it not easily leaves, and then causes the temperature range of oxygen temperature higher than human sense of comfort at mouthpiece plug place;
(3) sealing of air bag and total system is poor, under can not meeting high standard condition, to the requirement of air bag and overall tightness;
(4) set-up mode of radiating subassembly and medicine is unreasonable, and cause respiratory resistance large, respiratory is not happy.
Utility model content
For defect of the prior art and deficiency, the purpose of this utility model is to provide a kind of heat radiation, sealing effectiveness is better and the global shape of casing more meets the isolation type chemical-oxygen self-rescuer that human body is worn.
For achieving the above object, the technical scheme that the utility model is taked is:
A kind of isolation type chemical-oxygen self-rescuer, comprise can, respiratory system, oxygen candle, medicinal cupping and air bag, it is characterized in that, described respiratory system is communicated with medicinal cupping at the top of medicinal cupping with oxygen candle, air bag is communicated with medicinal cupping in the bottom of medicinal cupping, and respiratory system, oxygen candle, medicinal cupping and air bag are placed in the spatial accommodation of can.
Further, the structure of described medicinal cupping be set gradually from top to bottom the second filtering layer, powder charge district and the first filtering layer, the gas transmitted between respiratory system and medicinal cupping filters by the second filtering layer, the gas transmitted between medicinal cupping and air bag filters by the first filtering layer, described powder charge district embedded set heat radiation stratum reticulare.
Concrete, described heat radiation stratum reticulare is that the radiator-grid of sheet is carried out the folding waveform component obtained with 57 ~ 63 °, and the diameter of radiator-grid twine is 0.1 ~ 0.4mm, and the aperture of radiator-grid mesh is 3 ~ 6mm.
More specifically, described can is of a size of: high 190 ~ 210mm, long 165 ~ 175mm, wide 115 ~ 130mm; Described medicinal cupping is of a size of: high 90 ~ 110mm, long 140 ~ 150mm, wide 65 ~ 75mm;
Heat radiation stratum reticulare is 65 ~ 75mm along the height of its folding direction, and the height in powder charge district is 65 ~ 75mm, and the explosive payload in powder charge district is 450 ~ 550g.
In addition, described air bag and medicinal cupping are fixed by the electrodeless clip of monaural and are communicated with, and described respiratory system and medicinal cupping are fixed by the electrodeless clip of monaural and are communicated with, and the diameter of the electrodeless clip of monaural is 37mm.
Also have, described respiratory system comprises mouthpiece, breathing hose and nose clip, breathing hose is communicated with medicinal cupping and arranges radiating wire in connectivity part, described radiating wire is the orbicule that steel wire winding is formed, the width of steel wire is 0.1 ~ 0.2mm, the thickness of steel wire is 0.03 ~ 0.05mm, and mouthpiece, breathing hose and nose clip all adopt food grade natural rubber material to prepare.
Concrete, described can comprises upper cover and lower cover, and upper cover and lower cover carry out engaging by envelope band and seal, and arranges the unlatching of switch protection lid to can protect upper covering.
In addition, described lower cover is the opened type container that bore diminishes gradually, and the bottom of medicinal cupping arranges heat insulating mattress, and the placement space of medicinal cupping and air bag is isolated by the sidewall that heat insulating mattress can be stuck in lower cover.
Further, on described, be covered with visual windows, in visual windows, humidity indicating card is set; The shape of described can near human body side is semilune.
Compared with prior art, the utility model has the advantage of:
(1) self-rescuer that the utility model proposes is 45min self-rescuer, has carried out systematic research, make this device can meet the requirement of 45min respiratory capacity and breathing time with the device of minimum volume from the size of explosive payload, single unit system and the size of medicinal cupping;
(2) in order to respiratory resistance can be reduced to greatest extent while carrying out lowering the temperature, ensure that the breathing of underground operators is smooth and easy, when medicine in medicinal cupping loads, carry out the placement of radiator-grid in present medicinal cupping with the folding angles of about 60 °, substantially reduce respiratory resistance;
(3) in order to strengthen the sealing property of this device, improve for the connected mode between the sealing means of upper and lower covers, the manufacture craft of air bag and each ventilation member, make the sealing property of this device more superior, security performance is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of isolation type chemical-oxygen self-rescuer described in the utility model;
Fig. 2 is the stereogram of isolation type chemical-oxygen self-rescuer described in the utility model;
Fig. 3 is the front view of the heat radiation stratum reticulare in isolation type chemical-oxygen self-rescuer described in the utility model;
Fig. 4 is the side view of the heat radiation stratum reticulare in isolation type chemical-oxygen self-rescuer described in the utility model;
In figure, each label is expressed as: tank under 1-upper cover, 2-respiratory system group, 3-, 4-medicinal cupping, 5-oxygen candle, 6-air bag, 7-first filtering layer, 8-first clip, 9-second clip, 10-second filtering layer, 11-temperature indication card, 12-protect upper cover, 13-belt buckle, 14-to dispel the heat stratum reticulare, 15-heat insulating mattress;
α in Fig. 4 represents the folding angles of radiator-grid, and the arrow points in Fig. 4 represents the trend of breathing gas in medicinal cupping;
Below in conjunction with detailed description of the invention and Figure of description, the utility model is specifically described.
Detailed description of the invention
Chemical oxygen self-rescuer of the present utility model is the bulky problem that respiratory resistance is large, suction temperature is large and overall that causes based on existing self-rescuer structure and medicining condition and R & D design, and meets the relevant instructions for use of GB24502-2009 standard and European standard BS EN 13794:2002.
45min isolation type chemical-oxygen self-rescuer of the present utility model has carried out the experiment of system from the size of the selection of the sealing of respiratory system, radiator-grid, material, respiratory resistance, medicinal cupping and explosive payload aspect respectively, wherein:
The sealing standard of respiratory system is: respiratory system air tightness test is before heatproof experiment and carry out after inflammability test, under the pressure of ± 7.5mbar, continue 1min, and pressure change is no more than 30Pa;
The choice criteria of material is: 1. nonmetal outer tank insulaion resistance should more than 10
nΩ (n=9), 2. 3. outer tank and locking device fully corrosion-resistantly should be able to can stand product 72 DEG C time respectively at 95% humidity and each lasting 72h of 15% humidity, at 60 DEG C and-8 DEG C of each lasting 24h, the air tightness test of product is qualified, and product is without deformed damaged 4. three 1.5m free-electron model experiments, lifting 20mm is often turned without damaging and surprisingly open 5. experimental provision, speed 100r/min, make product in steel sash, keep level and the movement of falling object of (6 ± 2) mm, continue 5min, without damage and surprisingly open the material 6. contacted with oxygen guarantee to occur oxygen combustion 7. the direct material contacted with wearer skin should not cause any stimulation or any other is to the disadvantageous effect of health 8. exposed part use magnalium titanium not or contain the alloy manufacture of these metals,
Respiratory resistance standard is: under 35L/min condition, and suction gas and breath resistance sum should more than 13mbar, and respiratory resistance maximum during experiment should more than 7.5mbar; Under 70L/min condition, the requirement of the respiratory resistance of 70L/min is that expiration and inspiratory resistance are all no more than 2000Pa.
The size of medicinal cupping and the standard of explosive payload are: structure is reliable, accurate light and handy.
From above-mentioned general status, utility model people has specifically carried out following research:
(1) oxygen demand of 45min:
The working time of the utility model self-rescuer is 45 minutes, factor that the is general and time correlation of self-rescuer product work comprises the capacity of medicine, the size of medicinal cupping and explosive payload, product of the present utility model, when developing, main considers the working time that the improvement by medicinal cupping size and explosive payload controls self-rescuer;
The appearance and size of self-rescuer: high: 190 ~ 210mm is long: 165 ~ 175mm, wide: 115 ~ 130mm;
The size of medicinal cupping: high 90 ~ 110mm, long 140 ~ 150mm, wide 65 ~ 75mm;
The volume of medicinal cupping: 1000000 ~ 1100000mm
3;
Explosive payload in medicinal cupping: 450 ~ 550g;
Powder charge district height is: 70 ~ 80mm;
2KOH+CO
2→ K
2cO
3+ H
2o+ heat
In the utility model medicinal cupping, the generation heat of medicine is 375.306KJ/mol, and medicine is KO
2, KO
2as oxygen generating agent, another oxygen candle can provide initial respiratory oxygen 6 ~ 8L, and raw oxygen amount meets the living necessities of user completely, consumes the CO of characteristics of contaminated respiratory droplets simultaneously
2, the high temperature < that heat dissipation capacity causes 150 DEG C, can not damage human body under the protection of radiator-grid.
In order to further reduce the height of medicinal cupping, can reduce the size of single unit system, easy to carry, oxygen candle of the present utility model is external, and oxygen candle is connected with attachment cap with medicinal cupping, and oxygen candle of the present utility model is chlorate oxygen candle; The modes of emplacement of oxygen candle of the prior art is built-in, compared with the modes of emplacement of lighting up with oxygen in prior art, external oxygen candle of the present utility model can effectively reduce medicinal cupping volume and make oxygen candle itself spread the heat sent out and can not be accumulated in medicinal cupping, further reduction quantity of heat production, if oxygen candle is put into medicinal cupping, the height of medicinal cupping is at least 120mm, and medicinal cupping height of the present utility model is 90 ~ 110mm;
(2) sealing property:
In order to improve the sealing property of 45min self-rescuer of the present utility model, when carrying out the making of air bag after common technique for sticking completes, secondary being carried out to the bonding site of air bag and rolls, and then beat make bonding more firm with glue hammer;
In order to improve the sealing property of respiratory system in this device further, in the utility model, the connection of air bag and medicinal cupping adopts diameter to be that the electrodeless clip of 37mm monaural is fixed, breathing hose and medicinal cupping connection also adopt diameter to be the electrodeless clip of 37mm monaural, the connection of air bleeding valve and air bag adopts diameter to be the electrodeless clip of 53mm monaural; Reduce activity time, obtain better sealing property;
Carried out sealing experiment to the system of above-mentioned respiratory system, medicinal cupping and air bag composition, sealing assay method is: add ± the pressure of 750Pa to respiratory system, medicinal cupping and air bag, keeps 1min, pressure change < 30Pa in 1min;
Concrete experiment condition is the pressure of room temperature, dry air, applying ± 750Pa; Be connected to mouthpiece place with verification valve, then connection U-shaped differential manometer and source of the gas carry out sealing mensuration;
Experimental result: under the pressure of ± 750Pa, keeps 1min, pressure change < 30Pa;
(3) respiratory resistance:
When solving existing chemical oxygen self-rescuer and there is the problem of respiratory resistance, usually can consider that radiator-grid structure, breathing pattern, respiratory system structure and oxygen producing reagent are selected, the structure of the utility model to radiator-grid is improved, and is specifically expressed as:
Heat radiation stratum reticulare can adopt the steel wire of sheet to fold and form, gauge of wire 0.1 ~ 0.4mm in steel wire, mesh aperture are 3 ~ 6mm, the folding angles of radiator-grid is 57 ~ 63 °, heat radiation stratum reticulare is 65 ~ 75mm along the height of its folding direction, effectively reduces respiratory resistance;
In order to further cool the oxygen from medicinal cupping, filter mesh layer of the present utility model and radiating wire separated, the structure of radiating wire is ordinary steel pompon, the i.e. orbicule of steel wire winding formation, be positioned over the junction with medicinal cupping in breathing hose, the width of steel wire is 0.1 ~ 0.2mm, and the thickness of steel wire is 0.03 ~ 0.05mm; Concrete structure is the interface that radiating wire is positioned at breathing hose and medicinal cupping, and filter mesh layer is positioned at medicinal cupping top and bottom, and the gas that radiating wire will be able to suck user carries out cooling twice.
(4) security performance:
Usually drug quality can be considered when carrying out the improvement in security performance to chemical oxygen self-rescuer, respiratory system sealing, outer tank sealing, unexpected open and medicinal cupping heat insulation, for different safety factor experimental verification drug qualities, the sealing changing air bag and each junction ensures system sealing, outward appearance sealing is solved by sealing ring, add seal bar solve unexpected unlatching possibility and add heat insulating mattress solution medicinal cupping heating problem in use, surface structure carries out changing to ensure property safe to carry, dose changes the guarantee security protection time and radiator-grid structural change ensures respiration gas temperature in safe range.
Self-rescuer of the present utility model there is also mounted humidity indicating card and switch protection lid, humidity indicating card is arranged on tops, act as and informs user's self-rescuer whether safety, if indicating card color is thin out, then means that this self-rescuer can not continue to use; Switch protection lid is arranged on above upper cover locking belt spanner, and structure is rectangle, and there are two suspension columns one end for installing wherein, and effect is that the accident preventing self-rescuer from causing because of factors such as scratches is opened; The parts that are direct and direct body contact such as the breathing hose in the utility model in chemical oxygen self-rescuer, nose clip and mouthpiece all adopt food grade natural rubber material to make, harmless to human-body safety.
Below in conjunction with embodiment and accompanying drawing, the utility model is specifically described:
Embodiment one:
Composition graphs 1,2,3 and 4; chemical oxygen self-rescuer described in the present embodiment comprises upper cover 1, respiratory system group 2, lower cover 3, medicinal cupping 4, oxygen candle 5, air bag 6, first filter screen 7, first clip 8, second clip 9, second filter screen 10, temperature indication card 11, protection upper cover 12, belt buckle 13 and heat radiation stratum reticulare 14, wherein:
Upper cover 1 and lower cover 3 seal composition space held, and respiratory system group 2, medicinal cupping 4, oxygen candle 5 and air bag 6 are placed in this spatial accommodation;
Respiratory system group 2 comprises mouthpiece, nose clip and breathing hose, and breathing hose is communicated with the upper end of medicinal cupping 4, and oxygen candle 5 is communicated with the upper end of medicinal cupping 4, the lower end communicated air bags 6 of medicinal cupping, and respiratory system group 2 and oxygen candle 5, medicinal cupping 4 and air bag 6 are placed successively from top to bottom;
Powder charge district is provided with in medicinal cupping 4, the height in powder charge district is 75mm, and respiratory resistance is reduced to greatest extent while medicinal cupping is dispelled the heat, before carrying out powder charge, as Fig. 4 first carries out the placement of heat radiation stratum reticulare 14 in medicinal cupping 4 with the folding angles of 60 °, the folding direction of heat radiation stratum reticulare 14 moves towards identical with the gas in medicinal cupping 4, and the height of heat radiation stratum reticulare 14 is identical with the height in powder charge district, and medicine is evenly distributed in the folding space of radiator-grid; Heat radiation stratum reticulare is the wave component that steel wire folds, and in steel wire, the string diameter of steel wire is 0.2mm, the aperture of mesh is 4mm.
Powder charge district in medicinal cupping 4 bottom the first filter screen 7 is set, top arranges the second filter screen 10, first filter screen 7 enters respiratory system 2 again for human body respiration after being filtered by the oxygen in medicinal cupping 4, entering in air bag 6 after oxygen from medicinal cupping 4 filters by the second filter screen 10, carry out the filtration of medicine powder, in order to avoid medicine is sucked human body to cause breathing injury; The bottom of medicinal cupping 4 also arranges one deck heat insulating mattress 15, the making material of heat insulating mattress 15 is fire-retardant cotton textiles, heat insulating mattress 15 not only intercepts between medicinal cupping 4 and air bag 6 in seal casinghousing, form two spaces held, and when human body is worn, medicinal cupping 4 and human body are intercepted, reduces human body to the apparent temperatures of medicinal cupping 4;
In order to improve the overall tightness of this device, be fixed by the electrodeless clip of monaural that diameter is 37mm in the junction of breathing hose and medicinal cupping 4, medicinal cupping 4 is fixed by the electrodeless clip of monaural that diameter is 37mm with the junction of air bag 6, simultaneously, by protecting upper cover 12 to be fixed sealing between upper cover 1 and lower cover 3, open in order to avoid touch the accident caused unexpectedly;
This device arranges belt buckle 13 at side to carry out coordinating the waist being fixed on human body with belt, consider comfortable when wearing of human body, sidepiece towards human body is designed to the box body meeting human body waist curve shape, in addition, whether can also use in order to this device can be shown intuitively, upper cover 1 arranges humidity indicating card 11, if the color of humidity indicating card 11 changes illustrate that the sealing of this device is undesirable, this device is scrapped;
The medicinal cupping of this embodiment is of a size of the appearance and size of self-rescuer: high: 200mm, long: 170mm, wide: the size of 120mm medicinal cupping: high 105mm, long 145mm, wide 70mm, the volume of medicinal cupping: explosive payload in 1065750mm3 medicinal cupping: 500g, powder charge district height is: 75mm, and oxygen producing reagent is: KO
2;
The performance test results is carried out to the isolation type chemical-oxygen self-rescuer of the present embodiment and has seen form 1,2 and 3;
Experimental data in table 1 is carried out the test of key property to the self-rescuer in the present embodiment, and result shows the instructions for use meeting European standard;
Experimental data in table 2 is the test of temperature of the oxygen-supplying amount of 45min of carrying out under the respiratory capacity of 35L/min requires, respiratory resistance size and breathing, and result shows the requirement meeting European standard;
Experimental data in table 3 is the test of temperature of the oxygen-supplying amount of 45min of carrying out under the respiratory capacity of 70L/min requires, respiratory resistance size and breathing, and result shows the requirement meeting European standard.
The operation principle of 45min isolation type chemical-oxygen self-rescuer of the present utility model is:
During use, breathe and isolate from outer air, not by the impact of surrounding environment pernicious gas.
(1) initial stage adopts external chlorate oxygen candle 5 to be starting drive generating oxygen, and air bag 6 is heaved; During normal exhalation, the gas of exhalation enters medicinal cupping 4 through mouthpiece, and the potassium superoxide oxygen generating agent in the steam contained in expiration and carbon dioxide and medicinal cupping 4 reacts, and generates containing the higher gas of oxygen, enters air bag 6 through medicinal cupping 4;
(2), during air-breathing, the oxygen stored in air bag 6, again through medicinal cupping 4 to mouthpiece, enters human respiratory tract, completes whole breath cycle.
When in air bag 6, oxygen pressure is excessive, the air bleeding valve on air bag 6 can reduce pressure by automatic vent, and after oxygen pressure in air bag is normal, air bleeding valve can be closed automatically, and to avoid waste of oxygen, guarantee wearer normally use.
The use procedure of 45min isolation type chemical-oxygen self-rescuer of the present utility model is:
(1) belt is penetrated self-rescuer belt buckle 13, be fixed on loins on the right side of user, before first forwarding self-rescuer to abdomen along waistband during use, backing on the other hand, another hand opens protection upper cover 12 from outside to inside, pulls open the Wrench for opening with red marker subsequently, pull open Sealing strap and throw away;
(2) remove upper cover 1, left hand catches lower cover 3, and upper cover 1 is firmly pulled up and abandoned it by the right hand, portablely carry band on the arm, after respiratory system 2, medicinal cupping 4 and air bag 6 being taken out from lower cover 3, lower cover 3 is abandoned it, the neck band of carrying band group on the arm is hung on neck, puts heat insulating mattress 15 and air bag 6 in order;
(3) pull out mouthpiece plug, draw the raw oxygen startup pin opening and be attached thereto and connect fast, by the raw oxygen effect of oxygen candle 5, air bag 6 is heaved rapidly; If oxygen candle 5 starts unsuccessfully, mouthpiece should be faced toward and give a puff to medicinal cupping 4 and carry out forcing to give birth to oxygen, air bag 6 be heaved, mouthpiece is put into mouth, mouthpiece is placed between lips and teeth, and tooth tooth clinching pad, pulls open nose clip pad, clamps the nose with nose clip pad, start with mouth breathing, even breathing, steadily withdraws disaster area fast.
Table 1
Table 2
Table 3
Claims (9)
1. an isolation type chemical-oxygen self-rescuer, comprise can, respiratory system (2), oxygen candle (5), medicinal cupping (4) and air bag (6), it is characterized in that, described respiratory system (2) is communicated with medicinal cupping (4) at the top of medicinal cupping (4) with oxygen candle (5), air bag (6) is communicated with medicinal cupping (4) in the bottom of medicinal cupping (4), and respiratory system (2), oxygen candle (5), medicinal cupping (4) and air bag (6) are placed in the spatial accommodation of can.
2. isolation type chemical-oxygen self-rescuer as claimed in claim 1, it is characterized in that, the structure of described medicinal cupping (4) be set gradually from top to bottom the second filtering layer (10), powder charge district and the first filtering layer (7), the gas transmitted between respiratory system (2) and medicinal cupping (4) filters by the second filtering layer (10), the gas transmitted between medicinal cupping (4) and air bag (6) filters by the first filtering layer (7), described powder charge district embedded set heat radiation stratum reticulare (14).
3. isolation type chemical-oxygen self-rescuer as claimed in claim 2, it is characterized in that, described heat radiation stratum reticulare (14) is that the radiator-grid of sheet is carried out the folding waveform component obtained with 57 ~ 63 °, the diameter of radiator-grid twine is 0.1 ~ 0.4mm, and the aperture of radiator-grid mesh is 3 ~ 6mm.
4. isolation type chemical-oxygen self-rescuer as claimed in claim 3, it is characterized in that, described can is of a size of: high 190 ~ 210mm, long 165 ~ 175mm, wide 115 ~ 130mm; Described medicinal cupping is of a size of: high 90 ~ 110mm, long 140 ~ 150mm, wide 65 ~ 75mm;
Heat radiation stratum reticulare (14) is 65 ~ 75mm along the height of its folding direction, and the height in powder charge district is 65 ~ 75mm, and the explosive payload in powder charge district is 450 ~ 550g.
5. the isolation type chemical-oxygen self-rescuer as described in claim 1,2 or 4, it is characterized in that, described air bag (6) and medicinal cupping (4) are fixed by the electrodeless clip of monaural and are communicated with, described respiratory system (2) and medicinal cupping (4) are fixed by the electrodeless clip of monaural and are communicated with, and the diameter of the electrodeless clip of monaural is 37mm.
6. the isolation type chemical-oxygen self-rescuer as described in claim 1,2 or 4, it is characterized in that, described respiratory system (2) comprises mouthpiece, breathing hose and nose clip, breathing hose is communicated with medicinal cupping (4) and arranges radiating wire in connectivity part, described radiating wire is the orbicule that steel wire winding is formed, the width of steel wire is 0.1 ~ 0.2mm, and the thickness of steel wire is 0.03 ~ 0.05mm, and mouthpiece, breathing hose and nose clip all adopt food grade natural rubber material to prepare.
7. the isolation type chemical-oxygen self-rescuer as described in claim 1,2 or 4; it is characterized in that; described can comprises upper cover (1) and lower cover (3); upper cover (1) and lower cover (3) carry out engaging by envelope band and seal, and on upper cover (1), arrange switch protection lid (12) unlatching to can protect.
8. isolation type chemical-oxygen self-rescuer as claimed in claim 7, it is characterized in that, the opened type container that described lower cover (3) diminishes gradually for bore, the bottom of medicinal cupping (4) arranges heat insulating mattress (15), and the placement space of medicinal cupping (4) with air bag (6) is isolated by the sidewall that heat insulating mattress (15) can be stuck in lower cover (3).
9. isolation type chemical-oxygen self-rescuer as claimed in claim 7, it is characterized in that, described upper cover (1) is provided with visual windows, arranges humidity indicating card in visual windows; The shape of described can near human body side is semilune.
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| CN201420788061.4U CN204352395U (en) | 2014-12-12 | 2014-12-12 | A kind of isolation type chemical-oxygen self-rescuer |
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| CN201420788061.4U CN204352395U (en) | 2014-12-12 | 2014-12-12 | A kind of isolation type chemical-oxygen self-rescuer |
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ID=53253893
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104436456A (en) * | 2014-12-12 | 2015-03-25 | 陕西斯达煤矿安全装备有限公司 | Isolation type chemical oxygen self rescuer |
| CN118662806A (en) * | 2024-08-12 | 2024-09-20 | 山西岸流科技有限公司 | Positive pressure type oxygen respirator |
-
2014
- 2014-12-12 CN CN201420788061.4U patent/CN204352395U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104436456A (en) * | 2014-12-12 | 2015-03-25 | 陕西斯达煤矿安全装备有限公司 | Isolation type chemical oxygen self rescuer |
| CN104436456B (en) * | 2014-12-12 | 2017-12-01 | 陕西斯达防爆安全科技股份有限公司 | A kind of isolation type chemical-oxygen self-rescuer |
| CN118662806A (en) * | 2024-08-12 | 2024-09-20 | 山西岸流科技有限公司 | Positive pressure type oxygen respirator |
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Address after: Caotan economic and Technological Development Zone, eco industrial park in Shaanxi city of Xi'an province is 710018 Yuan Lu No. 3699 Patentee after: SHAANXI STAR EXPLOSION SAFETY POLYTRON TECHNOLOGIES Inc. Address before: Caotan economic and Technological Development Zone, eco industrial park in Shaanxi city of Xi'an province is 710018 Yuan Lu No. 3699 Patentee before: SHAANXI SIDA SAFETY EQUIPMENT OF COAL MINE Co.,Ltd. |
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Granted publication date: 20150527 |