CN107424388A - A kind of small-sized earthquake Alarm - Google Patents
A kind of small-sized earthquake Alarm Download PDFInfo
- Publication number
- CN107424388A CN107424388A CN201710363426.7A CN201710363426A CN107424388A CN 107424388 A CN107424388 A CN 107424388A CN 201710363426 A CN201710363426 A CN 201710363426A CN 107424388 A CN107424388 A CN 107424388A
- Authority
- CN
- China
- Prior art keywords
- triode
- electric capacity
- alarm
- earthquake
- conductor loop
- 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.)
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Emergency Alarm Devices (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
Invent a kind of small-sized earthquake Alarm, including shell, cased circuit board and electronic circuit；It is characterized in that electronic circuit includes metal sash weight, conductor loop, electric capacity C1 and the oscillator by compositions such as resistance R1, R2, electric capacity C2, triode V1, V2.When earthquake occurs, metal sash weight is swung and conductor loop or so is collided, and circuit is charged capacitor C1, and oscillator starts to vibrate, and loudspeaker will send the sound of alarm；When earthquake stops, metal sash weight is no longer collided with conductor loop, and when C1 is discharged, oscillator stops oscillation, and earthquake Alarm is with regard to stop alarm.The small-sized earthquake Alarm of the present invention, simple in construction, cost is low, megaphonia, and do not work not power consumption when not having earthquake generation.
Description
Technical field
The present invention is to be related to a kind of small-sized earthquake Alarm, is particularly suitable for rural area or city dweller uses.
Background technology
Earthquake is one of natural calamity maximum on the earth, all causes countless loss to people every year, more than 6 grades
Earthquake have generation every year, violent earthquake is most to be occurred, at night, to make one to be difficult to take precautions against, and alarm in the market is also very
It is more, but for being used as the seldom of earthquake alarm, be particularly adapted to that rural area or city dweller use just less.When generation earthquake
When, it is impossible to people are waken up in time and are shifted rapidly, area out of danger, cause casualty accident.
The content of the invention
The purpose of the present invention is that invention is a kind of simple in construction, and cost is low, megaphonia, the small-sized earthquake alarm of little power consumption
Device.
A kind of small-sized earthquake Alarm of the present invention, including shell, cased circuit board and electronic circuit；It is special
Sign is that electronic circuit includes metal sash weight, conductor loop, electric capacity C1 and by groups such as resistance R1, R2, electric capacity C2, triode V1, V2
Into oscillator, wherein metal sash weight wire connects through fixed conductor loop with electric capacity C1 negative pole and R1 left ends, resistance
The base stage of R1 right-hand members connecting resistance R2 left ends and triode V1, R2 right-hand member connect triode V1 colelctor electrodes, electric capacity C2 left ends and three poles
Pipe V2 base stage, C2 right-hand members connect triode V2 colelctor electrodes, and loudspeaker SP is connected on electric capacity C2 right-hand members and positive source, triode V2 transmittings
Pole connects power cathode；When earthquake occurs, metal sash weight is swung and conductor loop or so is collided, and circuit is filled capacitor C1
Electricity, oscillator start to vibrate, and loudspeaker will send the sound of alarm.
Operation principle is：When earthquake occurs, metal sash weight will vacillate now to the left, now to the right, and be collided with conductor loop, make circuit to electricity
Hold C1 chargings, oscillator starts to vibrate, and loudspeaker will send the sound of alarm, and because R1 left ends connect power cathode, circuit is opened
Beginning to vibrate, the lower oscillator frequency of F point voltages is higher, and the higher oscillator frequency of F point voltages is lower, when earthquake occurs, metal
Sash weight is swung and conductor loop or so is collided, and often touches primary circuit to C1 chargings once, and F point voltages are minimum when just fully charged,
Oscillator frequency highest, gradually discharged with the vibration C1 of circuit, the voltage of F points gradually rises, and oscillator frequency also declines.Therefore
Metal sash weight is collided with conductor loop constantly left and right, the sound for ring ... that loudspeaker will send ring ..., when earthquake stops, metal
Sash weight is no longer collided with conductor loop, and when C1 is discharged, oscillator stops oscillation, and earthquake Alarm is with regard to stop alarm.
The small-sized earthquake Alarm of the present invention, simple in construction, cost is low, megaphonia, little power consumption, when not having an earthquake generation not
Work not power consumption.
Brief description of the drawings
Accompanying drawing 1 is the circuit theory diagrams of the small-sized earthquake Alarm of the present invention.
Embodiment
A kind of small-sized earthquake Alarm of the present invention, including shell, cased circuit board and electronic circuit；It is special
Sign is that electronic circuit includes sash weight 1, conductor loop 2, electric capacity C1 and by resistance R1, resistance R2, electric capacity C2, triode V1, three poles
The oscillator of the compositions such as pipe V2；Wherein sash weight 1 connects electric capacity C1 negative pole and R1 left ends with wire through conductor loop 2, and resistance R1 is right
The base stage of terminating resistor R2 left ends and triode V1, R2 right-hand member meet triode V1 colelctor electrodes, electric capacity C2 left ends and triode V2
Base stage, C2 right-hand members connect triode V2 colelctor electrodes, and loudspeaker SP is connected on electric capacity C2 right-hand members and positive source, and triode V2 emitter stages connect
Power cathode；When earthquake occurs, sash weight 1 swings collides with conductor loop 2 or so, circuit is charged capacitor C1, shakes
Swing device to start to vibrate, loudspeaker will send the sound of alarm.
Each component requirements：The V1 triodes of the positive-negative-positives number such as C9015, β >=80；V2 three poles of the NPN types number such as S8050
Pipe, β >=80；Resistance R1 is that 30k Ω, R21 are 1k Ω；Electric capacity C1 is 100 μ, and electric capacity C2 is 0.1 μ；Loudspeaker SP is 8 Ω.On
State part and connected by circuit diagram and load in shell the small-sized earthquake Alarm for producing the present invention.
Claims (1)
1. a kind of small-sized earthquake Alarm, including shell, cased circuit board and electronic circuit；It is characterized in that electronics
Circuit includes sash weight（1）, conductor loop（2）, electric capacity C1 and by resistance R1, resistance R2, electric capacity C2, triode V1, triode V2 etc.
The oscillator of composition；Wherein, sash weight（1）Conductor loop is passed through with wire（2）Electric capacity C1 negative pole and R1 left ends is connect, R1 right-hand members connect electricity
R2 left ends and triode V1 base stage are hindered, R2 right-hand member connects triode V1 colelctor electrodes, electric capacity C2 left ends and triode V2 base stage,
C2 right-hand members connect triode V2 colelctor electrodes, and loudspeaker SP is connected on electric capacity C2 right-hand members and positive source, and triode V2 emitter stages connect power supply and born
Pole；When earthquake occurs, sash weight（1）Swing and conductor loop（2）Left and right is collided, and circuit is charged capacitor C1, vibration
Device starts to vibrate, and loudspeaker will send the sound of alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710363426.7A CN107424388A (en) | 2017-05-22 | 2017-05-22 | A kind of small-sized earthquake Alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710363426.7A CN107424388A (en) | 2017-05-22 | 2017-05-22 | A kind of small-sized earthquake Alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107424388A true CN107424388A (en) | 2017-12-01 |
Family
ID=60427960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710363426.7A Withdrawn CN107424388A (en) | 2017-05-22 | 2017-05-22 | A kind of small-sized earthquake Alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107424388A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202373112U (en) * | 2011-12-17 | 2012-08-08 | 江苏省电力公司盱眙县供电公司 | Small-range earthquake warning device |
| CN202711430U (en) * | 2012-06-28 | 2013-01-30 | 上海工程技术大学 | Earthquake alarm circuit |
| CN203520587U (en) * | 2013-11-08 | 2014-04-02 | 魏颖真 | Earthquake alarm |
-
2017
- 2017-05-22 CN CN201710363426.7A patent/CN107424388A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202373112U (en) * | 2011-12-17 | 2012-08-08 | 江苏省电力公司盱眙县供电公司 | Small-range earthquake warning device |
| CN202711430U (en) * | 2012-06-28 | 2013-01-30 | 上海工程技术大学 | Earthquake alarm circuit |
| CN203520587U (en) * | 2013-11-08 | 2014-04-02 | 魏颖真 | Earthquake alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171201 |
|
| WW01 | Invention patent application withdrawn after publication |