CN2209364Y - Digital display fire alarm - Google Patents
Digital display fire alarm Download PDFInfo
- Publication number
- CN2209364Y CN2209364Y CN 93246562 CN93246562U CN2209364Y CN 2209364 Y CN2209364 Y CN 2209364Y CN 93246562 CN93246562 CN 93246562 CN 93246562 U CN93246562 U CN 93246562U CN 2209364 Y CN2209364 Y CN 2209364Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- alarm
- button
- fire alarm
- display
- 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.)
- Expired - Fee Related
Links
Landscapes
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Abstract
The utility model relates to a special digital display fire alarm for high buildings, which mainly comprises a button circuit, an oscillating circuit, a counting circuit, a latch circuit, a decoding circuit, a display circuit, an alarming circuit, etc. Alarm buttons at each alarm point are mutually connected in parallel after connected in series with adjustable resistances. When compared with common gas sensitive element fire alarm devices, the utility model has simple circuit structure, convenient installation, reliable work, and visual, rapid and accurate display.
Description
The utility model provides a kind of number that is used for the skyscraper housing-group to show the fire protection warning instrument.
At present, the device that is used for fire alarm mostly adopts gas sensor, owing to environment and artificial complicated reason, often makes these fire alarm installations that adopt gas sensor produce misoperation, brings a series of troubles.In addition, in the skyscraper housing-group, also be provided with special-purpose, reliable fire alarm instrument.
The purpose of this utility model is: design and a kind ofly adopt electronic circuit, be exclusively used in the skyscraper housing-group, circuit is simple, the number of reliable operation shows the fire protection warning instrument.
The utility model is achieved in that this number shows that fire protection warning instrument forms by connecing button circuit, oscillatory circuit, counting circuit, latch cicuit, decoding scheme, display circuit, warning circuit etc.Wherein oscillatory circuit, counting circuit, latch cicuit, decoding scheme, display circuit, warning circuit can be realized by prior art, promptly after connecing the button circuit and transmitting alerting signal, make the oscillatory circuit vibration, send pulse signal, counting by counting circuit, latch cicuit, decoding scheme, latch, decipher, make display circuit demonstrate number at last, simultaneously, warning circuit sends alarm signal.In the skyscraper housing-group, as required, several alarm set points can be set, several warnings are housed connect button.Alarm button is different with conventional push button, and for fear of situation about arbitrarily pressing, alarm button adopts normally closed button by the glass block, by glass its normally closed contact is pressed off.Connect in each warning and to be in series with specific resistance and resistance on the button.All be connected in parallel after the alarm button of All Alerts point and the series connection of the resistance of specific resistance, like this, All Alerts is put oscillatory circuit and is just had only two lines.Because each alarm button resistance difference of connecting, so the alerting signal that passes to oscillatory circuit when alarm button is connected is also with regard to difference.When near a certain alarm set point during breaking out of fire, smash the glass on the alarm button, alarm button is connected, and sends alerting signal.Alerting signal makes the oscillatory circuit vibration, sends pulse signal, by counting, latch, deciphering, demonstrates the digital alarm signal of also sending simultaneously at last, can know the place that fire takes place rapidly and accurately from the number that demonstrates.
Advantage of the present utility model is: circuit is simple, easy for installation, only need two lines just All Alerts point and oscillatory circuit can be coupled together, reliable operation, intuitive display, quick and precisely.
The utility model is provided by following drawings and Examples:
Fig. 1 has provided the logic block-diagram that should number shows the fire protection warning instrument.
Fig. 2 has provided the circuit diagram that should number shows the button circuit of fire protection warning instrument.
Among Fig. 2,, receive in the oscillatory circuit then if all be connected in parallel after the series connection of the resistance of a dried alarm button and specific resistance.With needs 60 alarm set points being set is example, and then alarm button is followed successively by TA
1, TA
2, TA
3TA
59, TA
60, the corresponding resistance of connecting with alarm button is followed successively by R
1, R
2, R
3R
59, R
60Because the resistance difference that each alarm button is connected, so when certain alarm button was connected, the alerting signal that passes to oscillatory circuit was also just different.When near a certain alarm set point during breaking out of fire, smash the glass of block alarm button, alarm button is connected, and sends out and hits alerting signal.Alerting signal is used the oscillatory circuit vibration, sends pulse signal, by counting, latch, deciphering, demonstrates number at last, can know the place that fire takes place rapidly and accurately from the number that demonstrates.
Claims (3)
1, a kind of digital fire protection warning instrument that shows, form by button circuit, oscillatory circuit, latch cicuit, decoding scheme, display circuit, warning circuit, it is characterized in that: the alarm button of All Alerts point is connected to oscillatory circuit with being together in parallel after the resistance of specific resistance is connected with two lines.
2, the digital fire protection warning instrument that shows as claimed in claim 1, it is characterized in that: the alarm button of each alarm set point is connected with the resistance of specific resistance.
3, the digital fire protection warning instrument that shows as claimed in claim 1, it is characterized in that: alarm button adopts normally closed button, by glass its normally closed contact is pressed off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93246562 CN2209364Y (en) | 1993-12-28 | 1993-12-28 | Digital display fire alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93246562 CN2209364Y (en) | 1993-12-28 | 1993-12-28 | Digital display fire alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2209364Y true CN2209364Y (en) | 1995-10-04 |
Family
ID=33819219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93246562 Expired - Fee Related CN2209364Y (en) | 1993-12-28 | 1993-12-28 | Digital display fire alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2209364Y (en) |
-
1993
- 1993-12-28 CN CN 93246562 patent/CN2209364Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |