CN201696081U - Coal-mine underground gas-explosion safety cap type individual escape device - Google Patents
Coal-mine underground gas-explosion safety cap type individual escape device Download PDFInfo
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- CN201696081U CN201696081U CN2009202928118U CN200920292811U CN201696081U CN 201696081 U CN201696081 U CN 201696081U CN 2009202928118 U CN2009202928118 U CN 2009202928118U CN 200920292811 U CN200920292811 U CN 200920292811U CN 201696081 U CN201696081 U CN 201696081U
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- electromagnetic valve
- leather bag
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Abstract
The utility model relates to a coal-mine underground gas-explosion safety cap type individual escape device, which comprises an automatic oxygen respirator, a safety cap and a control part. An oxygen bottle, a filter, a pressure reducing valve, a one-way valve, a CO2 absorbent and the like are loaded in the shell of the automatic oxygen respirator, an electromagnetic valve is connected with a leather bag, a gas conduit is connected with the one-way valve, the one-way valve is connected with a central hollow pipe in the CO2 absorbent, the leather bag is folded in an upper cover, and the bottom of the shell is sealed. The safety cap comprises a cap body, a cap lining, an aeration pipe, an aeration hose and the like, wherein the aeration pipe is connected with the output pipe of the electromagnetic valve on an oxygen tank, and the aeration hose is connected with a face connecting mask. In the utility model, an early warning signal transmitted from an early warning network is received by a super-regenerative receiver module and decoded and amplified to an on-off controller to control the electromagnetic valve to be turned on, the oxygen bottle is opened by the electromagnetic valve to supply oxygen for the face connecting mask through the aeration pipe, meanwhile, a buzzer HA makes a warning sound, and a user manually pulls down the face connecting mask to oral and nasal parts. The utility model wins precious time for escape.
Description
Technical field
The utility model relates to a kind of safety helmet type individual escaping device for gas explosion under coal mine.
Background technology
Because rapid development of economy, also be raising at full speed to the demand of the energy, as being the country of primary raw material with coal, the yield of coal also climbs up and up, so mine safety accidents also causes a tremendous loss of lives again and again.Through the mass data analysis of and casualty on-the-spot, find that the death toll of underground work causes because sucked CO gas after the gas explosion more than 90% to mine disaster.
Lifesaving booth is all arranged under some large-scale mines, as long as gas explosion accident generation front and back personnel in the pit can enter survival capsule smoothly and just can not be in peril of one's life, but accident will take place in the short time at the utmost point when meeting the outstanding situation of gas, if adopt traditional self-rescuer to have no idea to save oneself at short notice at all.
For a long time, the isolation type oxygen self-rescuer service routine generally used of down-hole, mine is comparatively loaded down with trivial details.Usually unload the respirator of wearing earlier, open two bayonet sockets of breather loam cake, take off loam cake, opening valve gate open oxygen is clamped the nose clip on the leather bag with nose, opens the air bag stopper and catches in its mouth leather bag breathing mouth then.At least needed for 90 seconds from receiving the gas early warning to beginning to wear the chemical oxidation self-rescuer under the skilled situation of calmness, at this moment the underground labour also must stop operation, has so also taken valuable escape time.Add the traditional chemical oxygen self-rescuer and must be hand-held or mouth is stung also and made troubles to escape; in case more likely cause its stupor if the shock wave of its generation of gas explosion is very likely fallen down the underground work personnel; at this moment oxygen self-rescuer will break away from the effect that does not reach protection from mouth and nose, finally will be choked to death by carbon monoxide.
We see that from a large amount of fire damp explosion scene data the concentration of its carbon monoxide of fire damp blast back is generally 1～10%, and these data mean, will lose valuable life as long as suck flatly under this environment.We can judge that conventional self-rescue apparatus saving oneself in the fire damp blast process almost cannot so.
Also have some products to adopt firedamp sensor, carbon monoxide transducer, pressure sensor or shock sensor in the hope of reaching the effect of " automatically " now, but these products finally just rest on the paper.Its impracticable reason mainly is:
If 1, firedamp sensor, carbon monoxide transducer are worn to and necessarily require volume little, in light weight on the individuality.But the product response time of these " mini " types reaches 1～2 minute, and sensitivity is differential.
2, the higher imported product of sensitivity its cost an arm and a leg more than thousand yuan, obviously not have the meaning of popularization as the accessory of individuality equipment with such product.
3 pressure, shock sensor also can cause its misoperation because of reasons such as the influence of the vibrations in the course of work, site plant and junks, can imagine how such workman can feel at ease to produce, and how long each misoperation to repair to its injury that causes psychologically.
Summary of the invention
The purpose of this utility model is at above-mentioned present situation, aims to provide a kind of manually Open valve ventilation, combines firmly with the user, for the underground work personnel provide the quality time of escape and the safety helmet type individual escaping device for gas explosion under coal mine of chance.
The implementation of the utility model purpose is, safety helmet type individual escaping device for gas explosion under coal mine is made up of automatic oxygen breathing apparatus, safety helmet and control section,
Automatically the housing bottom of oxygen breathing apparatus is adorned oxygen cylinder on one side, oxygen bottle, strainer, reducing valve, pressure meter and electromagnetic valve screw thread are chained together, electromagnetic valve, overflow valve are connected with leather bag, the exhalation vents of gas conduit is connected with outgassing nonreturn valve, and place leather bag, the air entry of gas conduit is connected with breather check valve, one way valve and CO
2Central hollow tube in the absorbent connects, and power supply and control circuit board are put into the housing bottom under the oxygen cylinder, and housing bottom another side dress screen cloth has CO in the screen cloth
2Absorbent, leather bag are folded in the loam cake, and loam cake is connected with housing, the housing bottom sealing,
Between the cap body of safety helmet and the hat lining ventilating pipe is arranged, ventilating pipe one end is communicated with steam hose, and the other end is communicated with by the efferent duct of the electromagnetic valve on interface A and the oxygen tank, the steam hose other end with connect the face cover and be communicated with, connect the face cover and be connected with elastic cord with hat lining,
The positive pole of power supply connects 1 pin of circuit of three-terminal voltage-stabilizing integrated N1, negative pole connects 2 pin of N1,3 pin of N1 connect 1 pin of superregenerative reception device N2,2 pin of superregenerative reception device N2 connect 1 pin of decoder element N3,4 pin of N3 connect 1 pin of six inverter trigger N4,2 pin of N4 connect 3 pin of six inverter trigger N5, and 4 pin of N5 are connected with the input of triode FET Q1, the output termination electromagnetic valve DC1 of Q1 and the input B of light emitting diode or buzzer.
The utility model receives the early warning signal that early warning net transmits by the superregenerative reception device, through decoding, be amplified to triode FET Q1, triode FET Q1 passes to electromagnetic valve and buzzer with early warning signal, electromagnetic valve is opened, oxygen in the oxygen bottle filters through filter, the reducing valve step-down becomes oxygenation in leather bag behind 10 kilograms of pressure, be folded in leather bag in the loam cake under the promotion of 10 kilograms of pressure, after movable loam cake backed down, break away from also and open fully, and connecing the oxygen supply of face cover to being hidden in the cap body through gas conduit, the gas of exhalation is through gas conduit, the outgassing nonreturn valve CO that flows through
2Absorbent recycles after cleaning, filtering.After the wearer heard the warning of buzzer, leaving behind to be hidden in connect the face cover in the cap body, covers mouth and nose and gets final product.
The utility model has following advantage:
1, utilizes existing safety monitoring system in colliery and early warning net
2, compressed oxygen is imported leather bag automatically by explosion-proof solenoid valve, manually Open valve ventilation,
3, by 10 kilograms of oxygen pressures leather bag is backed down the breather loam cake, leather bag ejects automatically and has reduced the manually-operated time of uncap,
4, the concealed use that connects the face cover has been saved a large amount of manually-operated links and has effectively been prevented because the breather that explosion wave causes comes off, leaks gas and quits work,
The utility model has solved traditional self-help apparatus fully and has worn loaded down with trivial detailsly, breaks away from human body easily when being subjected to the blast impulse wave action and go into a coma and individually cause the corners of the mouth to leak gas because of losing consciousness or body pressure problem such as cause that breather quits work inadequately.In the nervous scene of the accident of acting hurriedly in a messy situation, use the utility model, need not the user of service spend a large amount of valuable time manually opened, wear breather, for the underground work personnel provide the quality time and the chance of escape, the staff who waits for rescue for stranded down-hole provides existence to ensure.
Description of drawings
Fig. 1 is an automatic oxygen breathing apparatus structural representation of the present utility model,
Fig. 2 a, b are superstructure front view, the vertical views of automatic oxygen breathing apparatus,
Fig. 3 is a safety helmet structural representation of the present utility model,
Fig. 4 is the utility model circuit theory diagrams.
The specific embodiment
With reference to Fig. 1,2,3, housing 13 bottoms are adorned oxygen bottle 2 on one side, oxygen bottle 2, strainer 3, reducing valve 4, pressure meter 5, electromagnetic valve 7 screw threads are chained together, electromagnetic valve 7, overflow valve 6 outlets are connected with leather bag 8, the gas conduit 9 that connects face shield is connected with breather check valve 10, and gas conduit 9 places leather bag 8, and power supply and control circuit 1 plate are put into the housing bottom under the oxygen cylinder, housing bottom another side dress screen cloth 15 has CO in the screen cloth
2Absorbent 14, breather check valve and CO
2Central hollow tube in the absorbent 14 connects, and housing 13 bottoms are threaded with seal cover 16, and there is hanging handle 12 on housing 13 both sides.
With reference to Fig. 1,2, to put the loam cake 11 of leather bag and form by fixed cover 18 and movable loam cake 19, the dop of movable loam cake one end is stuck in the fixed cover, and the other end has two expansion bayonet locks 20 to insert in the hole clipping 21 of fixed cover.The peephole 17 that the observed pressure table is arranged on the fixed cover 18.
With reference to Fig. 3, between cap body 29 and the hat lining 25 ventilating pipe 26 is arranged, ventilating pipe one end is communicated with steam hose 24, the steam hose other end with connect face cover 22 and be communicated with, ventilating pipe 26 other ends are communicated with the efferent duct of oxygen tank, connect the face cover and are hidden in the slit between cap body 29 and the hat lining 25, are connected with elastic cord 23 with hat lining, elastic cord 23 is fixed on the hat lining 25, and ventilating pipe 26 usefulness pipe clamps 27 are fixed on the cap body.Buzzer 28 is installed in the brim of a hat near the ear position.
With reference to Fig. 1,2,3,4, the 12V of power supply is entered by 1 pin of N1 (7805), becomes 5V voltage through pressure regulation, for control circuit is partly powered.Fuse F1 is arranged in the circuit.
3 pin of N1 connect 1 pin of superregenerative reception device N2 (PC-RZ3A), the superregenerative reception device receives the early warning signal that early warning net transmits, 2 pin of superregenerative reception device N2 connect 1 pin of N3, early warning signal is triggered to (IRF540) triode FET Q1 for twice through decoder element N3 (74HC14) decoding, six inverter trigger N4 (74HC14), N5 (74HC14), and the output of Q1 is passed to electromagnetic valve 7 and buzzer 28 with signal.Electromagnetic valve 7 is opened, oxygen in the oxygen bottle 2 filters through filter 3, reducing valve 4 step-downs become oxygenation in leather bag 8 behind 10 kilograms of pressure, be folded in leather bag in the loam cake 11 under the promotion of 10 kilograms of pressure, after movable loam cake 19 is backed down, break away from and open fully, and through gas conduit 9 to knot face cover 22 oxygen supplys that are hidden in 29 li of cap bodies, user's take in oxygen, the gas of exhalation recycle after cleaning, filtering through gas conduit 9, the breather check valve 10 CO2 absorbent 14 of flowing through.After the wearer heard the warning of buzzer 28, leaving behind to be hidden in connect the face cover in the cap body, covers mouth and nose and gets final product.
Claims (2)
1. safety helmet type individual escaping device for gas explosion under coal mine is characterized in that being made up of automatic oxygen breathing apparatus, safety helmet and control section,
Automatically the housing bottom of oxygen breathing apparatus is adorned oxygen cylinder on one side, oxygen bottle, strainer, reducing valve, pressure meter and electromagnetic valve screw thread are chained together, electromagnetic valve, overflow valve are connected with leather bag, the exhalation vents of gas conduit is connected with outgassing nonreturn valve, and place leather bag, the air entry of gas conduit is connected with breather check valve, one way valve and CO
2Central hollow tube in the absorbent connects, and power supply and control circuit board are put into the housing bottom under the oxygen cylinder, and housing bottom another side dress screen cloth has CO in the screen cloth
2Absorbent, leather bag are folded in the loam cake, and loam cake is connected with housing, the housing bottom sealing,
Between the cap body of safety helmet and the hat lining ventilating pipe is arranged, ventilating pipe one end is communicated with steam hose, and the other end is communicated with by the efferent duct of the electromagnetic valve on interface A and the oxygen tank, the steam hose other end and contact the face shield connection of face, the face shield of contact face is connected with elastic cord with hat lining
The positive pole of power supply connects 1 pin of circuit of three-terminal voltage-stabilizing integrated N1, negative pole connects 2 pin of N1,3 pin of N1 connect 1 pin of superregenerative reception device N2,2 pin of superregenerative reception device N2 connect 1 pin of decoder element N3,4 pin of N3 connect 1 pin of six inverter trigger N4,2 pin of N4 connect 3 pin of six inverter trigger N5, and 4 pin of N5 are connected with the input of triode FET Q1, the output termination electromagnetic valve DC1 of Q1 and the input B of light emitting diode or buzzer.
2. safety helmet type individual escaping device for gas explosion under coal mine according to claim 1, the loam cake (11) that it is characterized in that placing leather bag is made up of fixed cover (18) and movable loam cake (21), the dop of movable loam cake one end is stuck in the fixed cover, and the other end has 2 expansion bayonet locks (20) to insert in the hole clipping (21) of fixed cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202928118U CN201696081U (en) | 2009-12-14 | 2009-12-14 | Coal-mine underground gas-explosion safety cap type individual escape device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202928118U CN201696081U (en) | 2009-12-14 | 2009-12-14 | Coal-mine underground gas-explosion safety cap type individual escape device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696081U true CN201696081U (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202928118U Expired - Lifetime CN201696081U (en) | 2009-12-14 | 2009-12-14 | Coal-mine underground gas-explosion safety cap type individual escape device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696081U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228323A (en) * | 2011-06-03 | 2011-11-02 | 向九桥 | Downhole operation safety helmet |
| CN101709654B (en) * | 2009-12-14 | 2012-04-18 | 武汉思创职安科技有限公司 | Safety helmet type individual escaping device for gas explosion under coal mine |
| CN104390124A (en) * | 2014-09-18 | 2015-03-04 | 中山浩发节能科技有限公司 | Lifesaving automatic oxygen bottle |
-
2009
- 2009-12-14 CN CN2009202928118U patent/CN201696081U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709654B (en) * | 2009-12-14 | 2012-04-18 | 武汉思创职安科技有限公司 | Safety helmet type individual escaping device for gas explosion under coal mine |
| CN102228323A (en) * | 2011-06-03 | 2011-11-02 | 向九桥 | Downhole operation safety helmet |
| CN102228323B (en) * | 2011-06-03 | 2012-08-29 | 向九桥 | Downhole operation safety helmet |
| CN104390124A (en) * | 2014-09-18 | 2015-03-04 | 中山浩发节能科技有限公司 | Lifesaving automatic oxygen bottle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110105 Effective date of abandoning: 20091214 |