CN2331037Y - Vibratory alarm for anti-burglar door - Google Patents
Vibratory alarm for anti-burglar door Download PDFInfo
- Publication number
- CN2331037Y CN2331037Y CN 98217504 CN98217504U CN2331037Y CN 2331037 Y CN2331037 Y CN 2331037Y CN 98217504 CN98217504 CN 98217504 CN 98217504 U CN98217504 U CN 98217504U CN 2331037 Y CN2331037 Y CN 2331037Y
- Authority
- CN
- China
- Prior art keywords
- capacitor
- resistance
- triode
- dianlu
- men
- 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
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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a vibratory alarm for an anti-burglar door. A piezoelectric ceramics B< 1 > is connected with a resistor R< 1 > in series after being connected with a capacitor C< 1 > in parallel, and then an amplifying circuit is formed by the piezoelectric ceramics B< 1 >, the resistor R< 1 >, the capacitor C< 1 > and a triple pole BG< 1 >. A capacitor C< 2 > is coupled. A signal driving and indicating circuit is composed of the capacitor C< 2 >, resistors R< 3 >-R< 5 >, gate circuits &< 1 >, &< 2 >, capacitors C< 2 >, C< 3 >, diodes D< 1 >, D< 2 > and a light-emitting diode D< 3 >. A time delay control circuit is composed of resistors R< 6 >-R< 8 >, capacitors C< 4 >, C< 5 >, gating circuits &< 3 >, &< 4 > and transistors BG. An alarm signal amplifying circuit is composed of circuits R< 9 >, R< 10 >, a capacitor C< 7 >, a warning plate o u t and a triode BG< 3 >. A sounding circuit is composed of a transformer T and a piezoelectric ceramic B. The utility model has the advantages of simple structure, good reliability, high sensitivity, small size, low cost, easy popularization, etc.
Description
The utility model relates to a kind of alarm, especially shows the oscillatory type alarm that is used for antitheft door.
Warning device in the market is tired many, has version sound, light such as electronic type, computermatic, trigger-type, induction type to report to the police, but can enter the practical stage and few, because of also existing weak point at aspects such as reliability and costs.In the patent disclosure of number of patent application 89216251.1 " a kind of alarm " still exist above-mentioned deficiency.
The purpose of this utility model provides a kind of simple and practical, good reliability, a kind of oscillatory type alarm that is used for antitheft door that cost is low.
The purpose of this utility model is achieved in that and includes power supply, its piezoelectric ceramics B
1With capacitor C
1The same resistance R in back in parallel
1Series connection is with triode BG
1, resistance R
2Form input and amplifying circuit; Triode BG
1The c utmost point connect capacitor C
2Coupling is series at resistance R
3, R
4, Men Dianlu ﹠amp;
1, ﹠amp;
2, Men Dianlu ﹠amp;
1High level connect capacitor C
3, diode D
2, capacitor C
3Other end connecting resistance R
4, Men Dianlu ﹠amp;
1Low level output and diode D
1, resistance R
5, light emitting diode D
3Series connection is formed signal and is driven and indicating circuit; Diode D
2Output and resistance R
6Series connection is with resistance R
7And capacitor C
4Series connection again, Yu Mendianlu ﹠amp simultaneously after the parallel connection;
3, ﹠amp;
4Series connection, diode D
4Anodal connecting resistance R
1With piezoelectric ceramics B
1Contact, negative pole meet Men Dianlu ﹠amp altogether;
4Input end is formed delay control circuit, Men Dianlu ﹠amp; 4 output terminals connect resistance R
8, triode BG
2, capacitor C
5Form amplifying circuit; Triode BG
2E utmost point connecting resistance R
9Series connection.With resistance R
10Alarm out input end in parallel connects, and alarm out output meets triode BG
3The b utmost point, capacitor C
7One termination positive pole, other end ground connection are formed the alerting signal amplifying circuit; Triode BG
3The c utmost point be connected in series the secondary coil of transformer T and piezoelectric ceramics B with the primary coil of transformer T
2Phonation circuit is formed in parallel connection.When using the utility model, power switch S
11 and 2 closures, capacitor C
7Be in warning circuit and treat alarm condition.As piezoelectric ceramics B
1Influenced by extraneous mechanical force, and be transferred to by resistance R after detecting electric signal
1, R
2, capacitor C
1, triode BG
1The amplifying circuit of forming amplifies, and the signal after the amplification is through capacitor C
2Resistance R is given in coupling
3, R
4, capacitor C
3And Men Dianlu ﹠amp;
1, ﹠amp;
2The signal drive circuit of forming provides start pulse signal, Men Dianlu ﹠amp;
2The low level of output makes signal indicating circuit diode D
1, light emitting diode D
3And resistance R
5Lumination of light emitting diode in the series circuit, show the induction and signal drive circuit work Men Dianlu ﹠amp;
1The high level of output is given capacitor C
4Capacitor C is worked as in the charging time-delay
4Both end voltage reaches 1/2V
CDuring supply voltage, Men Dianlu ﹠amp;
3Output low level makes diode D
4Conducting, this moment, signal deteching circuit and signal drive circuit were not worked, not to capacitor C
4Charging, Men Dianlu ﹠amp;
4The output high level makes triode BG
2Saturation conduction for circuit provides high level, makes warning circuit work, and output alarm signal is by triode BG
3Amplify, boosting through transformer T promotes piezoelectric ceramics B
2Send chimes of doom; Otherwise, when normally opening the door in short-term, capacitor C
4When terminal voltage is lower than certain value, diode D
4End, the warning circuit cisco unity malfunction, chimes of doom stops.As piezoelectric ceramics B
1When newly detecting electrical signal of reaction, duty repeats said process again.Also have the doorbell function simultaneously concurrently.
Because adopt technique scheme, compared with prior art simple and practical, unfailing performance is good, and is highly sensitive, volume is little, and cost is low, characteristics such as is easy to popularize.
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing is circuit principle structure figure of the present utility model.
Among the figure: resistance R
1-R
11Capacitor C
1-C
7Piezoelectric ceramics B
1-B
2Triode BG
1-BG
5Men Dianlu ﹠amp;
1-﹠amp;
4Diode D
1, D
2, D
4Light emitting diode D
3Alarm out loudspeaker Y switch S
1-S
2Transformer T
As shown in drawings, resistance R
1, R
2, capacitor C
1Piezoelectric ceramics B
1, triode BG
1Form input and amplifying circuit; Capacitor C
2, C
3, resistance R
3-R
5, diode D
1, D
2, light emitting diode D
3, Men Dianlu ﹠amp;
1, ﹠amp;
2Forming signal drives and indicating circuit; Resistance R
6-R
8, capacitor C
4, C
5, Men Dianlu ﹠amp;
3, ﹠amp;
4, triode BG
2Form delay control circuit; Resistance R
9-R
10, capacitor C
7, alarm out, triode BG
3Form the alerting signal amplifying circuit; Transformer T, piezoelectric ceramics B
2Form phonation circuit.
Claims (1)
1, a kind of oscillatory type alarm that is used for antitheft door includes power supply, it is characterized in that piezoelectric ceramics B
1With capacitor C
1The same resistance R in back in parallel
1Series connection is with triode BG
1, resistance R
2Form input and amplifying circuit; Triode BG
1The c utmost point connect capacitor C
2Coupling is series at resistance R
3, R
4, Men Dianlu ﹠amp;
1, ﹠amp;
2, Men Dianlu ﹠amp;
1High level connect capacitor C
3, diode D
2, capacitor C
3Other end connecting resistance R
4, Men Dianlu ﹠amp;
1Low level output and diode D
1, resistance R
5, light emitting diode D
3Series connection is formed signal and is driven and indicating circuit; Diode D
2Output and resistance R
6Series connection is with resistance R
7And capacitor C
4Series connection again, Yu Mendianlu ﹠amp simultaneously after the parallel connection;
3, ﹠amp;
4Series connection, diode D
4Anodal connecting resistance R
1With piezoelectric ceramics B
1Contact, negative pole meet Men Dianlu ﹠amp altogether;
4Input end is formed delay control circuit, Men Dianlu ﹠amp;
4Output terminal connects resistance R
8, triode BG
2, capacitor C
5Form amplifying circuit; Triode BG
2E utmost point connecting resistance R
9Series connection is with resistance R
10Alarm out input end in parallel connects, and alarm out output meets triode BG
3The b utmost point, capacitor C
7One termination positive pole, other end ground connection are formed the alerting signal amplifying circuit; Triode BG
3The c utmost point be connected in series the secondary coil of transformer T and piezoelectric ceramics B with the primary coil of transformer T
2Phonation circuit is formed in parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98217504 CN2331037Y (en) | 1998-07-20 | 1998-07-20 | Vibratory alarm for anti-burglar door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98217504 CN2331037Y (en) | 1998-07-20 | 1998-07-20 | Vibratory alarm for anti-burglar door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2331037Y true CN2331037Y (en) | 1999-07-28 |
Family
ID=33970086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98217504 Expired - Fee Related CN2331037Y (en) | 1998-07-20 | 1998-07-20 | Vibratory alarm for anti-burglar door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2331037Y (en) |
-
1998
- 1998-07-20 CN CN 98217504 patent/CN2331037Y/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 |