CN220671365U - Portable gas detection alarm - Google Patents
Portable gas detection alarm Download PDFInfo
- Publication number
- CN220671365U CN220671365U CN202221138593.4U CN202221138593U CN220671365U CN 220671365 U CN220671365 U CN 220671365U CN 202221138593 U CN202221138593 U CN 202221138593U CN 220671365 U CN220671365 U CN 220671365U
- Authority
- CN
- China
- Prior art keywords
- shell
- pcb
- alarm
- upper shell
- gas
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 37
- 239000002341 toxic gas Substances 0.000 abstract description 5
- CJDNEKOMKXLSBN-UHFFFAOYSA-N 1-chloro-3-(4-chlorophenyl)benzene Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC(Cl)=C1 CJDNEKOMKXLSBN-UHFFFAOYSA-N 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The utility model provides a portable gas detection alarm which comprises a shell, wherein a PCB (printed circuit board) is arranged in the shell, a gas sensor is arranged on the PCB, an MCU (micro control unit) is arranged on the PCB, a battery for supplying power is arranged on the PCB, a buzzer for alarming is arranged on the PCB, and an instrument air inlet hole for allowing external gas to enter the gas sensor is formed in the shell. The alarm is simple and convenient to operate, can improve the detection efficiency of toxic gas in the industrial field, and reduces potential safety hazards.
Description
Technical Field
The utility model relates to the technical field of gas detection, in particular to a portable gas detection alarm instrument.
Background
The industrial sites such as petroleum, steel, medicine, chemical industry and the like are accompanied with toxic, harmful, inflammable, explosive and other gases, and once leakage occurs in the production process, safety accidents are easily caused. In order to ensure personal safety and production safety of enterprises, combustible gas or toxic gas leaked in production processes and storage and transportation facilities is monitored, and alarms are given in time, personal injury and fire and explosion accidents are prevented, so that gas detection equipment is required to monitor the concentration of toxic, harmful, flammable, explosive and other gases in real time on site, and a portable gas detection alarm instrument is often adopted in actual production and life.
The existing portable gas detection alarm has the problems of large volume, heavy weight, inconvenient carrying, high instrument power consumption, short standby time, troublesome operation and the like. Therefore, there is a need for a new portable gas detection alarm that can solve the above-mentioned problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides the portable gas detection alarm, which is simple and convenient to operate, can improve the detection efficiency of toxic gas in an industrial field and reduces potential safety hazards.
In order to achieve the purpose, the portable gas detection alarm comprises a shell, wherein a PCB is arranged in the shell, a gas sensor is arranged on the PCB, an MCU is arranged on the PCB, a battery for supplying power is arranged on the PCB, a buzzer for alarming is arranged on the PCB, and an instrument air inlet hole for allowing external gas to enter the gas sensor is formed in the shell.
Further, be equipped with the display screen on the shell, be equipped with the display screen support on the PCB board, the battery is installed on the one side that the display screen was kept away from to the display screen, is equipped with the data interface that is used for with external communication on the PCB board.
Further, a waterproof and breathable film is arranged on the gas sensor, and a sensor O-shaped ring is arranged between the waterproof and breathable film and the gas sensor.
Further, a buzzer O-shaped ring is arranged on the buzzer.
Further, the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably installed through a bolt assembly, and an external rubber protective sleeve for protection is sleeved on the periphery of the lower shell.
Further, one surface of the lower shell, which is away from the upper shell, is provided with a back clip.
Further, an operation indicator lamp is arranged on the upper shell, an alarm indicator lamp is arranged on the upper shell, a control key is arranged on the upper shell, and a buzzer hole is arranged on the upper shell.
The portable gas detection alarm can improve the detection efficiency of toxic gas in an industrial site, reduce potential safety hazards, is simple and convenient to operate, reduces the difficulty and complexity of operation, reduces the possibility of misoperation, and further ensures safety.
Drawings
The utility model is further described and illustrated below with reference to the accompanying drawings.
Fig. 1 is a front view of a portable gas detection alarm in accordance with a preferred embodiment of the present utility model.
Fig. 2 is an exploded view of the portable gas detection alarm.
Reference numerals: 1. an upper housing; 2. a display screen; 3. a display stand; 4. a battery; 5. an outer rubber protective sleeve; 6. a lower housing; 7. a bolt assembly; 8. a back clip; 9. a waterproof breathable film; 10. a sensor O-ring; 11. a gas sensor; 12. a buzzer O-shaped ring; 13. a PCB board; 14. a buzzer hole; 15. an air inlet hole of the instrument; 16. an alarm indicator light; 17. a control key; 18. and operating the indicator lamp.
Detailed Description
The technical solution of the present utility model will be more clearly and completely explained by the description of the preferred embodiments of the present utility model with reference to the accompanying drawings.
As shown in fig. 1 and 2, the portable gas detection alarm device according to the preferred embodiment of the present utility model comprises a housing, wherein the housing comprises an upper housing 1 and a lower housing 6, the upper housing 1 and the lower housing 6 are detachably mounted through a bolt assembly 7, an external rubber protection sleeve 5 for protection is further sleeved on the periphery of the lower housing 6, and a back clip 8 is arranged on one surface of the lower housing 6 facing away from the upper housing 1.
As shown in fig. 1 and 2, the upper case 1 is provided with a meter inlet hole 15 for external air to enter the gas sensor 11. The gas sensor 11 is provided with a waterproof and breathable film 9, and a sensor O-shaped ring 10 is arranged between the waterproof and breathable film 9 and the gas sensor 11.
As shown in fig. 1 and 2, a PCB 13 is arranged in the casing, a gas sensor 11 is arranged on the PCB 13, an MCU is arranged on the PCB 13, a battery 4 for supplying power is arranged on the PCB 13, a buzzer for alarming is arranged on the PCB 13, and a buzzer O-ring 12 is arranged on the buzzer. The upper shell 1 is provided with an operation indicator lamp 18, the upper shell 1 is provided with an alarm indicator lamp 16, the upper shell 1 is provided with a control key 17, and the upper shell 1 is provided with a buzzer hole 14. The upper shell 1 is provided with a display screen 2, the PCB 13 is provided with a display screen 2 bracket, the battery 4 is arranged on one surface of the display screen 2, which is away from the display screen 2, of the display bracket 3, and the PCB 13 is provided with a data interface for communication with the outside.
When the detected gas concentration is greater than the alarm value set in the instrument, the alarm indicator lamp 16 flashes to emit red alarm light. The flicker frequency is slower when the low limit is alarmed, and the flicker frequency is faster when the high limit is alarmed. The display screen 2 can display various information such as concentration value, electric quantity, gas type, gas unit, alarm state and the like. The running light 18 consists of 2 0603 light-emitting diodes. The green light interval 5S blinks when the instrument is in normal operation, and when the instrument is charged, the red light is turned on and used for indicating that the instrument is being charged, and the red light is turned off after the instrument is full. When the detected gas concentration is greater than the alarm value set in the instrument, the instrument alarms, and the buzzer sounds intermittently.
The battery 4 is a 3.7V rechargeable lithium battery 4, and the voltage of the battery 4 is converted into the voltage required by the operation of each circuit module through an internal DC-DC conversion circuit. The main control chip selected by the MCU is STM8L152, has rich built-in resources and strong functions, and is enough to meet various functional requirements of the instrument. The chip is a low-power consumption chip, and the running time of the instrument is further improved. The display module adopts LCD liquid crystal screen, can show multiple information such as concentration value, electric quantity, gas type, gas unit, alarm state. The current signal of the electrochemical sensor is converted into a voltage signal which can be read by the MCU through analog-digital signal conversion, and the signal of the sensor is subjected to operational amplification and filtering treatment. The data interface adopts a USB interface, and can adopt the TYPE-C interface which is the most mainstream at present, and the common mobile phone data line can be used. The data interface can be used for charging and communication of the instrument, and a series of parameter setting, zeroing, range calibration and other works of the instrument can be realized by connecting the data interface with computer software.
The portable gas detection alarm can improve the detection efficiency of toxic gas in an industrial site, reduce potential safety hazards, is simple and convenient to operate, reduces the difficulty and complexity of operation, reduces the possibility of misoperation, and further ensures safety.
The above detailed description is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Various modifications, substitutions and improvements of the technical scheme of the present utility model will be apparent to those skilled in the art from the description and drawings provided herein without departing from the spirit and scope of the utility model. The scope of the utility model is defined by the claims.
Claims (1)
1. The portable gas detection alarm is characterized by comprising a shell, wherein a PCB (printed circuit board) is arranged in the shell, a gas sensor is arranged on the PCB, an MCU (micro control unit) is arranged on the PCB, a battery for supplying power is arranged on the PCB, a buzzer for alarming is arranged on the PCB, and an instrument air inlet hole for external gas to enter the gas sensor is formed in the shell; the shell is provided with a display screen, the PCB is provided with a display screen bracket, the battery is arranged on one surface of the display screen bracket, which is away from the display screen, and the PCB is provided with a data interface for communication with the outside; a waterproof and breathable film is arranged on the gas sensor, and a sensor O-shaped ring is arranged between the waterproof and breathable film and the gas sensor; the buzzer is provided with a buzzer O-shaped ring; the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably arranged through a bolt assembly, and an external rubber protective sleeve for protection is sleeved on the periphery of the lower shell; a back clamp is arranged on one surface of the lower shell, which is away from the upper shell; the upper shell is provided with an operation indicator lamp, the upper shell is provided with an alarm indicator lamp, the upper shell is provided with a control key, and the upper shell is provided with a buzzer hole;
when the detected gas concentration is greater than the alarm value set in the instrument, the alarm indicator lamp flashes to emit red alarm light; the running indicator lamp 18 consists of 2 0603 light-emitting diodes; the battery is a 3.7V rechargeable lithium battery; the MCU selects STM8L152 as the main control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221138593.4U CN220671365U (en) | 2022-05-11 | 2022-05-11 | Portable gas detection alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221138593.4U CN220671365U (en) | 2022-05-11 | 2022-05-11 | Portable gas detection alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220671365U true CN220671365U (en) | 2024-03-26 |
Family
ID=90326576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221138593.4U Active CN220671365U (en) | 2022-05-11 | 2022-05-11 | Portable gas detection alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220671365U (en) |
-
2022
- 2022-05-11 CN CN202221138593.4U patent/CN220671365U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201497720U (en) | Harmful gas detecting instrument | |
| CN206411058U (en) | A kind of explosion-proof stationary gas detection alarm | |
| CN203606062U (en) | A respirator intelligent digital display electronic pressure gauge system | |
| CN208568172U (en) | A kind of gas leakage detector | |
| CN202443555U (en) | Portable alarm | |
| CN108732309A (en) | A kind of gas collecting monitoring system of dynamic environment | |
| CN220671365U (en) | Portable gas detection alarm | |
| CN111076773A (en) | Intelligent house environmental monitoring device of single chip microcomputer control | |
| CN208400286U (en) | A kind of composite gas detection device | |
| CN208243049U (en) | A kind of Intelligent bracelet | |
| CN205315042U (en) | GRH5 uses in colliery carbon dioxide sensor | |
| CN100474875C (en) | Mobile telephone possessing alcohol or toxic gas detecting and warning function | |
| CN201497722U (en) | H2S gas detector | |
| CN205038764U (en) | It inhales formula gas detection alarm to have pump | |
| CN205038732U (en) | Portable alarm with wireless charging device | |
| CN212541044U (en) | Hazardous gas intelligent detection watch under operation environment | |
| CN204946229U (en) | A kind of sun power real time monitoring apparatus of audible-visual annunciator | |
| CN107290403A (en) | A kind of new combustible-gas detector | |
| CN210487718U (en) | Measuring and alarming device for alkane gas and carbon monoxide gas in cable well | |
| GB2459501A (en) | Intrinsically safe mobile phone with gas alarm. | |
| CN221686250U (en) | Full-range gas detector with wireless function | |
| CN218524666U (en) | Portable methane carbon monoxide detection device | |
| CN213517026U (en) | Movable wireless explosion-proof gas alarm detector | |
| CN202459893U (en) | Intelligent alarm device for respirator | |
| CN219574026U (en) | Handheld gas detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |