CN205644907U - Portable combustible gas alarm - Google Patents
Portable combustible gas alarm Download PDFInfo
- Publication number
- CN205644907U CN205644907U CN201620460940.3U CN201620460940U CN205644907U CN 205644907 U CN205644907 U CN 205644907U CN 201620460940 U CN201620460940 U CN 201620460940U CN 205644907 U CN205644907 U CN 205644907U
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- China
- Prior art keywords
- alarm
- sensor
- organism
- chip microcomputer
- lcd display
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- Expired - Fee Related
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Abstract
The utility model discloses a portable combustible gas alarm, but adopt the power supply of 3.7V rechargeable lithium -ion battery, the preceding button that is provided with of alarm organism, the LCD display, alarm organism one side is provided with charging socket, alarm organism top is provided with alarm indicator, alarm organism top is connected with the sensor, still be provided with the screw hole on the alarm organism, the sensor adopts the carrier catalysis component, carrier catalysis component and metal film resistor constitute measuring bridge, the inside singlechip that is provided with of alarm organism, the singlechip respectively with loudspeaker, alarm indicator, the button, power input circuit connects, the singlechip passes through drive circuit and is connected with the LCD display, the sensor passes through operational amplifier and is connected with the singlechip, the utility model discloses operation maintenance is simple, small in size, portable, and the working property is reliable and stable, and effectively the combustible gas thickness among the continuous monitor ambient air monitors on the spot, ensures the safety of the person and equipment.
Description
Technical field
This utility model relates to flammable gas alarm device technical field, a kind of Portable combustible air alarm device.
Background technology
Along with people's growth in the living standard, gas-cooker has come into huge numbers of families, and the firepower of these gas-cookers is big, easy to use, brings great convenience to people's life.But the gas leak phenomenon occurred due to the insufficient and burnt gas switch long term wear of burning when using gas-cooker often has generation.
And for the staff of long-term underground work, sending out of gas explosion accident generates major hidden danger, the most highly gassy mine in regular colliery of China, Gas Outburst mine are equipped with " gas density monitoring system " and are provided with science and effective ventilating system, for ensureing that coal mining safety and personal safety serve certain effect.But, coal seam digging and development end are the processes of a dynamic extension, " gas density monitoring system " tends not to deploy to ensure effective monitoring and control of illegal activities in time with exploitation and the extending of development end, cause the missing inspection of new work surface, and newly exploit and driving face miner's whereabouts exactly, Gas, prominent time concentration maximum, it is impossible to monitor in real time, define the leak of gas-monitoring work.Therefore people devise and can monitor the alarm of the concentration of fuel gas around staff, but existing alarm volume is relatively big, structure is complicated, cost is high, and staff carries also inconvenient.
Therefore, design for overcoming the deficiency of above-mentioned technology that a Operation and Maintenance is simple, be easy to carry, stable and reliable working performance, can a kind of Portable combustible air alarm device of the combustable gas concentration in monitoring of environmental air effectively continuously, inventor's problem to be solved just.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of Portable combustible air alarm device, its Operation and Maintenance is simple, compact, it is easy to carry, stable and reliable working performance, can the combustable gas concentration in monitoring of environmental air effectively continuously, monitor on the spot, ensure the person and the safety of equipment.
nullThis utility model solves its technical problem and be the technical scheme is that a kind of Portable combustible air alarm device，It includes alarm body、LCD display、Alarm lamp、Sensor、Single-chip microcomputer、Button、Loudspeaker、Charging socket，Described Portable combustible air alarm device uses 3.7V chargeable lithium cell to power，It is provided with button before described alarm body、LCD display，Described alarm body side is provided with charging socket，Described alarm body top is provided with alarm lamp，Described alarm body top connects sensor，It is additionally provided with screw hole on described alarm body，Described sensor uses carrier catalyst element，Described carrier catalyst element and metal film resistor constitute measuring bridge，Described alarm internal body is provided with single-chip microcomputer，Described single-chip microcomputer respectively with loudspeaker、Alarm lamp、Button、Power supply input circuit connects，Described single-chip microcomputer is connected with LCD display by drive circuit，Described sensor is connected with single-chip microcomputer by operational amplifier.
Further, described alarm body surface scribbles waterproof and heat-insulating coating.
The beneficial effects of the utility model are:
1, this utility model Operation and Maintenance is simple, compact, is easy to carry, stable and reliable working performance, can the combustable gas concentration in monitoring of environmental air effectively continuously, monitor on the spot, ensure the person and the safety of equipment.
Accompanying drawing explanation
Fig. 1 is this utility model structure front view.
Fig. 2 is this utility model structure rearview.
Fig. 3 is this utility model internal circuit configuration figure.
Description of reference numerals: 1-alarm body；2-sensor；3-LCD display；4-button；5-screw hole；6-loudspeaker；7-charging socket；8-alarm lamp；11-single-chip microcomputer；12-loudspeaker；13-alarm lamp；14-power supply input circuit；15-button；16-LCD display；17-drive circuit；18-sensor；19-operational amplifier.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is expanded on further, it should be appreciated that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model.In addition, it is to be understood that after having read the content that this utility model is lectured, this utility model can be made various changes or modifications by those skilled in the art, these equivalent form of values also fall within application appended claims limited range.
Seeing Fig. 1 is this utility model structure front view, seeing Fig. 2 is this utility model structure rearview, this structure one Portable combustible air alarm device, including alarm body 1, LCD display 3, alarm lamp 8, sensor 2, single-chip microcomputer 11, button 4, loudspeaker 6, charging socket 7, alarm body 1 is above provided with button 4, LCD display 3, alarm body 1 side is provided with charging socket 7, alarm body 1 top is provided with alarm lamp 8, alarm body 1 top connects sensor 2, screw hole 5 it is additionally provided with on alarm body 1, sensor 2 uses carrier catalyst element, carrier catalyst element and metal film resistor constitute measuring bridge.This utility model uses 3.7V chargeable lithium cell to power, independent external charger, and charging is convenient.Using liquid crystal LCD display 3, reading is eye-catching intuitively, may adapt to various occasion detection combustable gas concentration.Use carrier catalyst element as sensor 2,, when tested gas contacts with the carrier catalyst element being heated to operating temperature, there is flameless combustion on its surface in carrier catalyst element group and metal film resistor composition measuring bridge, so that its temperature raises, its resistance value varies with temperature.Screw in screw hole 5 is in order to fixing alarm body 1, and detachable maintaining is also convenient for.Scribble waterproof and heat-insulating coating, alarm body 1 resistance to water and good heat-insulation effect on alarm body 1 surface, it is ensured that alarm body 1 safety in utilization, extend the service life of alarm body 1 simultaneously.
Seeing Fig. 3 is this utility model internal circuit configuration figure, alarm body 1 is internally provided with single-chip microcomputer 11, single-chip microcomputer 11 is connected with loudspeaker 12, alarm lamp 13, button 15, power supply input circuit 14 respectively, single-chip microcomputer 11 is connected with LCD display 16 by drive circuit 17, and sensor 18 is connected with single-chip microcomputer 11 by operational amplifier 19.The signal of telecommunication that sensor 18 detects is delivered to single-chip microcomputer 11 through operational amplifier 19 and is processed, deliver to LCD display 16 after treatment show, indicate corresponding gas concentration, when concentration meets or exceeds the alarm point of setting, warning circuit work sends sound and light alarm by loudspeaker 12 and alarm lamp 13.When probe gas concentration drops to below alarm setting value, alarm automatically terminates.
This utility model Operation and Maintenance is simple, compact, is easy to carry, stable and reliable working performance, can the combustable gas concentration in monitoring of environmental air effectively continuously, monitor on the spot, ensure the person and the safety of equipment.
Claims (2)
- null1. a Portable combustible air alarm device，It is characterized in that: it includes alarm body、LCD display、Alarm lamp、Sensor、Single-chip microcomputer、Button、Loudspeaker、Charging socket，Described Portable combustible air alarm device uses 3.7V chargeable lithium cell to power，It is provided with button before described alarm body、LCD display，Described alarm body side is provided with charging socket，Described alarm body top is provided with alarm lamp，Described alarm body top connects sensor，It is additionally provided with screw hole on described alarm body，Described sensor uses carrier catalyst element，Described carrier catalyst element and metal film resistor constitute measuring bridge，Described alarm internal body is provided with single-chip microcomputer，Described single-chip microcomputer respectively with loudspeaker、Alarm lamp、Button、Power supply input circuit connects，Described single-chip microcomputer is connected with LCD display by drive circuit，Described sensor is connected with single-chip microcomputer by operational amplifier.
- A kind of Portable combustible air alarm device the most according to claim 1, it is characterised in that: scribble waterproof and heat-insulating coating on described alarm body surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620460940.3U CN205644907U (en) | 2016-05-19 | 2016-05-19 | Portable combustible gas alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620460940.3U CN205644907U (en) | 2016-05-19 | 2016-05-19 | Portable combustible gas alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205644907U true CN205644907U (en) | 2016-10-12 |
Family
ID=57054534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620460940.3U Expired - Fee Related CN205644907U (en) | 2016-05-19 | 2016-05-19 | Portable combustible gas alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205644907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288347A (en) * | 2017-08-04 | 2018-07-17 | 金联智能科技发展（深圳）有限公司 | One kind being convenient for multifunctional domestic warning device |
-
2016
- 2016-05-19 CN CN201620460940.3U patent/CN205644907U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288347A (en) * | 2017-08-04 | 2018-07-17 | 金联智能科技发展（深圳）有限公司 | One kind being convenient for multifunctional domestic warning device |
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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: 20161012 Termination date: 20190519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |