CN87214547U - Miner's lamp-shaped methanophone - Google Patents
Miner's lamp-shaped methanophone Download PDFInfo
- Publication number
- CN87214547U CN87214547U CN 87214547 CN87214547U CN87214547U CN 87214547 U CN87214547 U CN 87214547U CN 87214547 CN87214547 CN 87214547 CN 87214547 U CN87214547 U CN 87214547U CN 87214547 U CN87214547 U CN 87214547U
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- gas
- alarm
- lamp
- miner
- utility
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Abstract
The utility model provides a miner's lamp gas alarm for the downhole safety. The utility model integrates the illumination of the miner's lamp and the alarm of the gas, but the two functions are separated. The works are not mutually affected. The miner's lamp gas alarm effectively monitors and alarms the downhole gas, and guarantees the normal illumination of the miner's lamp. When the downhole gas density exceeds the limit, the alarm sends out the speech signal or the music signal of the 'gas exceeding the limit', and simultaneously the red light indicates the light. The alarm is worn on the safety cap of the miner, and has convenient, flexible and safe utilization. The utility model is also suitable for the leak detection, the alarm, etc., on the pipelines and the devices of the methane gas, the natural gas, the hydrogen gas, the liquefied petroleum gas, etc.
Description
The utility model belongs to a kind of downhole safety instrument, a kind of specifically mine lamp alarm that is used for mine lighting, gas alarming.
At present, what the method for China's middle and small scale coal mine monitoring gas was comparatively generally used is the optics gas detector, the gas worker carries out timing with this instrument to each measuring point of down-hole and detects, though the method is simple, practical, also relatively accurately, but since fire damp time of gushing out be at random, indefinite, thereby with this method detection still potential unsafe factor.Number of patent application: 85203013 disclose a kind of gas warning head lamp, and this lamp is used for illumination when gas density does not transfinite, after gas density transfinites, and the controlled flashing light alarm of manufacturing of lighting bulb.This device preferably resolves the warning problem at random of fire damp, but because this device is to utilize the flashing as alarm signal of mine lamp light, in the time can not reducing gas density at once or withdraw the scene, the continuous flicker of mine lamp will influence the normal lighting of down-hole, make troubles to underground work.The sensor of this device has been selected the higher heat catalytic element of cost for use in addition, has improved the price of whole device.
The purpose of this utility model provides the mine lamp formula gas alarm that a kind of mine lighting and gas alarming function are separated, and can not influence the normal lighting of mine lamp again effectively to the fire damp monitoring, alarming.
Task of the present utility model is achieved in that gas sensor, an electronic switch and the acoustooptic display alarm device that a detection gas density is housed on the lamp box of mine lamp, when mine lamp is connected the battery feed illumination work, gas sensor is in running order, electronic switching circuit then is in wait state, and the acoustooptic display alarm device is not worked; (herein being 1.0%) electronic switch auto-closing is connected the circuit of acoustooptic display alarm device when fire damp concentration reaches warning line, sends sound equipment and ruddiness alarm signal, the still normal lighting of mine lamp this moment.The great advantage of this utility model is to integrate mine lamp illumination and gas alarming, but does not influence the normal lighting of mine lamp during alarm work.This device can be worn on miner's the safety helmet, has characteristics such as highly sensitive, stable and reliable for performance, that the life-span is long, cost is low during use.This device also can be used for the leakage alarm of pipe-line equipments such as methane gas, natural gas, liquefied petroleum gas.
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is an external form schematic diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
As Fig. 1: 4 are power switch, the 7 lamp boxes for the mine lamp alarm manufactured with ABS plastic or other engineering plastics for battery feed, 3, it is that illumination mine lamp, 8 is that gas sensor, 1 is that ruddiness indicator lamp, 2 is piezoelectric buzzer that control circuit board, 9 is housed in the lamp box, wherein 3,1,2,8 all the sealing be contained on the lamp box 7, tighten with seal with elastometic washer, screw between lamp box bonnet 6 and the lamp box 7, use seal with elastometic washer between the opening part 5 of lamp box lead-in wire and leader cable.
As Fig. 2: the circuit of gas alarm of mine lamp by illumination, survey sensing, electronic switch and audible-visual annunciator four parts and form, battery feed E is as the utility power of each several part circuit.Lighting circuit is made up of K switch and lighting bulb L; Detection circuit is by gas sensor GT, resistance R
1, R
2Form R
1Be the current-limiting resistance of gas sensor, R
2Be the load resistance of gas sensor, gas sensor GT has adopted homemade novel semi-conductor gas sensor; Electronic switching circuit is by diode D
1With triode BG
1Form D
1Select 2AP for use, BG
1Select DG12B for use, sound light alarming circuit is made up of ruddiness indicator lamp ZD, language or music integrated circuit chip IC and voltage ceramic buzzer Y.Under normal operation, after K switch was connected, the mine lamp normal lighting was at this moment because the interpolar A-K resistance of gas sensor GT presents high resistant, load resistance R
2Last voltage drop is low, and the B point presents electronegative potential, D
1, BG
1End, electronic switch is in off-state, and sound light alarming circuit is not worked; When methane gas appearred in the down-hole, the interpolar A-K resistance of gas sensor GT reduced, B point current potential increases, and when gas density reached 1.0%, the high potential of B point exportable (3.5～4.0) volt made D
1, BG
1Conducting, sound light alarming circuit work, ruddiness indicator lamp ZD are bright, piezoelectric buzzer Y sends the speech signal or the music signal of " gas exceeding limit ", have realized the gas monitor warning.Regulate resistance R
2Can adjust alarm point.
Claims (3)
1, a kind of gas alarm of forming by battery feed, cable, hand switch, illumination mine lamp, gas sensor, electronic switch and sound light alarming circuit, it is characterized in that throwing light on and sound and light alarm is two circuit that are independent of each other, sound light alarming circuit has adopted language or music integrated circuit chip (IC), piezoelectric buzzer (Y) and ruddiness indicator lamp (ZD), does not influence the normal lighting of mine lamp during alarm work.
2, gas alarm as claimed in claim 1 is characterized in that said gas sensor (GT) is the semiconductor gas sensor.
3, gas alarm as claimed in claim 1 is characterized in that except that battery feed, and the components and parts of alarm all are contained in the airtight lamp box of manufacturing with ABS plastic or other engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87214547 CN87214547U (en) | 1987-10-26 | 1987-10-26 | Miner's lamp-shaped methanophone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87214547 CN87214547U (en) | 1987-10-26 | 1987-10-26 | Miner's lamp-shaped methanophone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87214547U true CN87214547U (en) | 1988-05-18 |
Family
ID=4828843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87214547 Withdrawn CN87214547U (en) | 1987-10-26 | 1987-10-26 | Miner's lamp-shaped methanophone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87214547U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383515C (en) * | 2005-01-27 | 2008-04-23 | 刘宏儒 | Portable gas monitoring equipment with illuminating function |
| CN102338329A (en) * | 2011-07-26 | 2012-02-01 | 苏州晶雷光电照明科技有限公司 | LED (light emitting diode) bulkhead lamp with hazardous gas alarming function |
| CN111006143A (en) * | 2019-05-15 | 2020-04-14 | 付小龙 | Multifunctional portable miner's lamp |
-
1987
- 1987-10-26 CN CN 87214547 patent/CN87214547U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383515C (en) * | 2005-01-27 | 2008-04-23 | 刘宏儒 | Portable gas monitoring equipment with illuminating function |
| CN102338329A (en) * | 2011-07-26 | 2012-02-01 | 苏州晶雷光电照明科技有限公司 | LED (light emitting diode) bulkhead lamp with hazardous gas alarming function |
| CN111006143A (en) * | 2019-05-15 | 2020-04-14 | 付小龙 | Multifunctional portable miner's lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |