CN201503428U - Handheld harmful gas detector - Google Patents
Handheld harmful gas detector Download PDFInfo
- Publication number
- CN201503428U CN201503428U CN2009202250862U CN200920225086U CN201503428U CN 201503428 U CN201503428 U CN 201503428U CN 2009202250862 U CN2009202250862 U CN 2009202250862U CN 200920225086 U CN200920225086 U CN 200920225086U CN 201503428 U CN201503428 U CN 201503428U
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- harmful gas
- pin
- led light
- battery
- circuit board
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Abstract
The utility model relates to a handheld harmful gas detector which comprises a shell, a harmful gas sensor, an LED indicator lamp, a switch, a circuit board and a battery, and is characterized in that the shell is a rectangular structure or a cylindrical structure with a rectangular cross section, the top end thereof is provided with the harmful gas sensor, the side surface of the upper part thereof is provided with the LED indicator lamp, the middle thereof is provided with the switch, and the inside thereof is provided with the battery and the circuit board; and the circuit board is connected with the harmful gas sensor, the LED indicator lamp, the switch and the batter. Compared with the prior art, the handheld harmful gas detector has the advantages that: 1. the size is small, the weight is light and the use is convenient; 2. the gas detection is diversified, and each instrument can detect a plurality of types of gas; and 3. the price is low.
Description
Technical field
The utility model relates to harmful gas detection technology field, is a kind of hand-held harmful gas detector concretely.
Background technology
At present, adopt instrumentation to carry out to the detection of harmful gas, it has brought into play vital role in the check of environmental monitoring and indoor harmful gas more.But the detecting instrument of existing harmful gas remains in following defective or deficiency: 1, volume and weight are big, use inconvenience; 2, detected gas is single, and every instrument is only at a kind of gas examination; 3, cost an arm and a leg.
The utility model content
The purpose of this utility model is exactly the defective that exists at prior art, and a kind of hand-held harmful gas detector of simple in structure, easy to operate, cheap and high efficiency is provided.
Its technical scheme is: comprise housing, harmful gas sensor, LED light, switch, circuit board and battery.Described housing is that xsect is the rectangular structure of rectangle or is columnar structured, its top is provided with the harmful gas sensor, its upper side is provided with LED light, its all switches of middle part, the inside of housing is provided with battery and circuit board, and described harmful gas sensor, circuit board are connected with LED light, switch and battery.
Wherein, described circuit board comprises integrated circuit, potentiometer, adjustable resistance and LED light, wherein, 1. the pin of integrated circuit is connected with battery cathode through LED light, 3. pin is connected with battery cathode through LED light, 5. pin is connected with battery cathode, 6. pin is connected with battery cathode through LED light, 7. pin is connected with battery cathode through adjustable resistance, 8. pin is connected with the center head of potentiometer, 9. pin is connected with anode through switch, and the lower end of potentiometer is connected with battery cathode; The both ends of power of harmful gas sensor is connected with 9. pin, the battery cathode end of integrated circuit respectively, and its input two ends are connected with the 9. pin of integrated circuit, the upper end of potentiometer respectively.Described harmful gas sensor, LED light, switch and coupled circuit board are set to 1 group at least.
The utility model has following advantage compared with prior art: 1, volume is little, in light weight, and is easy to use; 2, detected gas diversification, every instrument can be checked simultaneously to multiple gases; 3, cheap.
Description of drawings
Fig. 1 is a kind of example structure synoptic diagram of the present utility model;
Fig. 2 is a kind of embodiment circuit theory diagrams of the present utility model.
Embodiment:
With reference to Fig. 1-Fig. 2, a kind of hand-held harmful gas detector comprises housing 1, harmful gas sensor 2, LED light 3, switch 4, circuit board 5 and battery 6.Housing 1 is that xsect is the rectangular structure of rectangle or is columnar structured, its top is provided with harmful gas sensor 2, its upper side is provided with LED light 3, its all switches 4 of middle part, the inside of housing 1 is provided with battery 6 and circuit board 5, and circuit board 5 is connected with harmful gas sensor 2, LED light 3, switch 4 and battery 6.Circuit board 5 comprises integrated circuit (IC), potentiometer W1, adjustable resistance W2 and LED light 3, wherein, 1. the pin of integrated circuit (IC) is connected with battery 6 negative poles through LED light 3,3. pin is connected with battery 6 negative poles through LED light 3,5. pin is connected with battery 6 negative poles, 6. pin is connected with battery 6 negative poles through LED light 3,7. pin is connected with battery 6 negative poles through adjustable resistance W2,8. pin is connected with the center head of potentiometer W1,9. pin is connected with battery 6 positive poles through switch 4, and the lower end of potentiometer W1 is connected with battery 6 negative poles; The both ends of power of harmful gas sensor 2 is connected with 9. pin, battery 6 negative pole ends of integrated circuit (IC) respectively, and its input two ends are connected with the 9. pin of integrated circuit (IC), the upper end of potentiometer W1 respectively.Harmful gas sensor 2, LED light 3, switch 4 and coupled circuit board 5 are set to 1 group (shown in Fig. 1 being 4 groups) at least.
The utility model is when detecting harmful gas, and after harmful gas sensor 2 was sensed signal, process potentiometer W1 dividing potential drop passed to the 8. pin of integrated circuit (IC), and relatively inner through integrated circuit (IC), whether driving LED pilot lamp 3 is luminous.Do not have harmful gas in detected gas, the output of harmful gas sensor 2 is almost nil, and the 8. pin of integrated circuit (IC) can not get signal, and all LED light 3 are all not luminous; When existing harmful gas and concentration low in the detected gas, the output certain voltage signal of harmful gas sensor 2, relatively inner through integrated circuit (IC), drive with integrated circuit (IC) in 1. the LED light 3 of pin is luminous; The voltage signal of the output of harmful gas sensor 2 also increases thereupon when concentration increases, and is relatively inner through integrated circuit (IC), and 3. the LED light 3 of pin is also luminous in driving and the integrated circuit (IC); When concentration increased once again, 6. the LED light 3 of pin was also luminous thereupon in the integrated circuit (IC).Be to exist harmful gas concentration from low to high in the detected gas, the luminous number of LED light 3 also changes thereupon from less to more in the utility model.
Claims (3)
1. hand-held harmful gas detector, comprise housing, harmful gas sensor, LED light, switch, circuit board and battery, it is characterized in that: described housing is that xsect is the rectangular structure of rectangle or is columnar structured, its top is provided with the harmful gas sensor, its upper side is provided with LED light, its all switches of middle part, the inside of housing is provided with battery and circuit board, and described circuit board is connected with harmful gas sensor, LED light, switch and battery.
2. hand-held harmful gas detector according to claim 1, it is characterized in that: described circuit board comprises integrated circuit, potentiometer, adjustable resistance and LED light, wherein, 1. the pin of integrated circuit is connected with battery cathode through LED light, 3. pin is connected with battery cathode through LED light, 5. pin is connected with battery cathode, 6. pin is connected with battery cathode through LED light, 7. pin is connected with battery cathode through adjustable resistance, 8. pin is connected with the center head of potentiometer, 9. pin is connected with anode through switch, and the lower end of potentiometer is connected with battery cathode; The both ends of power of harmful gas sensor is connected with 9. pin, the battery cathode end of integrated circuit respectively, and its input two ends are connected with the 9. pin of integrated circuit, the upper end of potentiometer respectively.
3. hand-held harmful gas detector according to claim 1 and 2 is characterized in that: described harmful gas sensor, LED light, switch and coupled circuit board are set to 1 group at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202250862U CN201503428U (en) | 2009-08-25 | 2009-08-25 | Handheld harmful gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202250862U CN201503428U (en) | 2009-08-25 | 2009-08-25 | Handheld harmful gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201503428U true CN201503428U (en) | 2010-06-09 |
Family
ID=42454360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202250862U Expired - Fee Related CN201503428U (en) | 2009-08-25 | 2009-08-25 | Handheld harmful gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201503428U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109311A (en) * | 2010-06-25 | 2013-05-15 | 工业科技公司 | A multi-sense environmental monitoring device and method |
| CN105807011A (en) * | 2016-05-06 | 2016-07-27 | 赣州有色冶金研究所 | Separating-type multifunctional gas detection device |
| CN105823857A (en) * | 2016-05-06 | 2016-08-03 | 赣州有色冶金研究所 | Automatic sound-light alarming type gas detection device with illumination function |
-
2009
- 2009-08-25 CN CN2009202250862U patent/CN201503428U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109311A (en) * | 2010-06-25 | 2013-05-15 | 工业科技公司 | A multi-sense environmental monitoring device and method |
| CN105807011A (en) * | 2016-05-06 | 2016-07-27 | 赣州有色冶金研究所 | Separating-type multifunctional gas detection device |
| CN105823857A (en) * | 2016-05-06 | 2016-08-03 | 赣州有色冶金研究所 | Automatic sound-light alarming type gas detection device with illumination function |
| CN105823857B (en) * | 2016-05-06 | 2018-02-02 | 赣州有色冶金研究所 | A kind of automatic sound-light alarm formula gas-detecting device with illumination functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20100825 |