CN2554285Y - Anti-theft lock with alarm - Google Patents
Anti-theft lock with alarm Download PDFInfo
- Publication number
- CN2554285Y CN2554285Y CN 02238585 CN02238585U CN2554285Y CN 2554285 Y CN2554285 Y CN 2554285Y CN 02238585 CN02238585 CN 02238585 CN 02238585 U CN02238585 U CN 02238585U CN 2554285 Y CN2554285 Y CN 2554285Y
- Authority
- CN
- China
- Prior art keywords
- warning circuit
- lock
- fixed contact
- alarm
- warning
- 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 anti-theft lock with warning, and the inner part of the lock body of the anti-theft lock with warning is assembled with a warning circuit circuitry plate. A conducting wire is arranged in a locking rod. A fixing contact point (1) which is arranged on a warning circuit circuitry plate and controls the warning circuit to work is matched with a moving contact point (6) arranged on a lock core. Fixing contact points (2), (3) are matched with moving contact points (4), (5) which are arranged on both end parts of the conducting wire in the locking rod. When a stealing car theft draws out the locking rod from the inner part of the lock body or shears off the locking rod, the warning circuit starts working and emits warning signal. Consequently the utility model effectively prevents self-activating missing, and the utility model is simple in structure and convenient in operation.
Description
Affiliated technical field
The utility model relates to a kind of alarm anti-theft lock.
Background technology
Bicycle and motorcycle are walking-replacing tools important in people's live and work, yet at present to lose phenomenon serious for bicycle and motorcycle, make troubles and worry not only for people's life, but also cause the certain economic loss, though bicycle all has been equipped with theftproof lock now, but the car thief can extract locking bar out or the sawed-off form of locking bar is stolen car calmly after damage lock core, makes the car owner have a headache very much.
Summary of the invention
It is a kind of when Bicycles and Motorcycles is stolen that the purpose of this utility model is to provide, and can send the alarm anti-theft lock of alarm signal, effectively prevented losing of Bicycles and Motorcycles.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of alarm anti-theft lock, comprise lock body and locking bar, be provided with the warning circuit wiring board in the described lock body, be provided with a lead in the locking bar, be respectively equipped with fixed contact (1), (2), (3) of control warning circuit work on the warning circuit wiring board; Lead both ends in the locking bar are provided with movable contact (4), (5) of matching with fixed contact (2), (3); Lock core is provided with the movable contact (6) that matches with fixed contact (1); Described warning circuit is by resistance R 1-R3, triode T1-T3, relay J, K switch, power supply E and alarm B form, triode T1-T3 constitutes three-stage amplifier, the base stage of the input triode T1 of amplifying circuit and the fixed contact (2) on the warning circuit wiring board, (3) connect, relay J is connected to the colelctor electrode of third level amplifying circuit triode T3, be connected to the output of power supply behind the Chang Kaijie contact J1 serial connection alarm B of relay, power supply E is the input of power supply through K switch, and K switch is made of fixed contact (1) and the movable contact (6) on the lock core be located on the warning circuit wiring board.
The beneficial effects of the utility model are: the utility model is on the basis of existing bicycle or anti-theft lock for motorcycle, in lock body, be fitted with the warning circuit wiring board, be provided with a lead in the locking bar, the fixed contact (1) of the control warning circuit work that the warning circuit wiring board is provided with matches with the movable contact (6) that lock core is provided with, fixed contact (2), (3) movable contact (4) that is provided with locking bar inside conductor both ends, (5) match, warning circuit is started working when the car thief extracts locking bar out or locking bar cut off in lock body, send alarm signal, thereby effectively prevented losing of bicycle and motorcycle, bring convenience for people's live and work, reduced economic loss.The utility model is simple in structure, easy to operate simultaneously.
Description of drawings
Describe in detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 cuts open figure for the office of overlooking of Fig. 1.
Fig. 3 warning circuit schematic diagram of the present utility model.
The specific embodiment
As Fig. 1, as shown in Figure 2, a kind of alarm anti-theft lock, comprise lock body (7) and locking bar (8), be provided with warning circuit wiring board (9) in the lock body (7), be provided with a lead (10) in the locking bar (8), be respectively equipped with fixed contact (1), (2), (3) of control warning circuit work on the warning circuit wiring board (9); Lead (10) both ends in the locking bar (8) are provided with movable contact (4), (5) of matching with fixed contact (2), (3); Lock core (11) periphery is provided with the movable contact (6) that cooperates with fixed contact (1); As shown in Figure 3, warning circuit is by resistance R 1-R3, triode T1-T3, relay J, K switch, power supply E and alarm B form, triode T1-T3 constitutes three-stage amplifier, the base stage of the input triode T1 of amplifying circuit and the fixed contact (2) on the warning circuit wiring board, (3) connect, relay J is connected to the colelctor electrode of third level amplifying circuit triode T3, be connected to the output of power supply behind the Chang Kaijie contact J1 serial connection alarm B of relay, power supply E is the input of power supply through K switch, and K switch is made of fixed contact (1) and the movable contact (6) on lock core (11) periphery be located on the warning circuit wiring board.When the lock car, locking bar is inserted in the lock body, fixed contact (2) (3) is connected on the movable contact (4) at these hour locking lever inside conductor both ends, (5) and the warning circuit wiring board, movable contact on the lock core (6) is connected with fixed contact (1), K switch is closed, and in the warning circuit, the base stage of T1 (2) point is higher than the current potential of T1 emitter stage at this moment, not conducting of T1 is not reported to the police; When lock was not opened, locking bar was cut off or extracts out in lockhole, and promptly put when disconnecting (2), (3), and the base stage of T1 (2) point is lower than the current potential of T1 emitter stage, the T1 conducting, and T2, T3 conducting, relay J powers up, and often opens node J1 closure, and alarm B begins to report to the police.When opening lock with key, rotational lock core, the movable contact on it (6) breaks away from fixed contact (1), and K switch is opened, and cuts off the electricity supply, and alarm B does not work.The utility model also can bury upper conductor in the destructible district of lock body and be connected in series with the locking bar inside conductor, and when destroying lock body, lead disconnects like this, starts warning.
Claims (2)
1, a kind of alarm anti-theft lock comprises lock body and locking bar, it is characterized in that being provided with the warning circuit wiring board in the described lock body, is provided with a lead in the locking bar, is respectively equipped with fixed contact (1), (2), (3) of control warning circuit work on the warning circuit wiring board; Lead both ends in the locking bar are provided with movable contact (4), (5) of matching with fixed contact (2), (3); Lock core is provided with the movable contact (6) that matches with fixed contact (1).
2, alarm anti-theft lock according to claim 1, it is characterized in that described warning circuit is by resistance R 1-R3, triode T1-T3, relay J, K switch, power supply E and alarm B form, triode T1-T3 constitutes three-stage amplifier, the base stage of the input triode T1 of amplifying circuit and the fixed contact (2) on the warning circuit wiring board, (3) connect, relay J is connected to the colelctor electrode of third level amplifying circuit triode T3, be connected to the output of power supply behind the Chang Kaijie contact J1 serial connection alarm B of relay, power supply E is the input of power supply through K switch, and K switch is made of fixed contact (1) and the movable contact (6) on the lock core be located on the warning circuit wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02238585 CN2554285Y (en) | 2002-06-07 | 2002-06-07 | Anti-theft lock with alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02238585 CN2554285Y (en) | 2002-06-07 | 2002-06-07 | Anti-theft lock with alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2554285Y true CN2554285Y (en) | 2003-06-04 |
Family
ID=33712242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02238585 Expired - Fee Related CN2554285Y (en) | 2002-06-07 | 2002-06-07 | Anti-theft lock with alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2554285Y (en) |
-
2002
- 2002-06-07 CN CN 02238585 patent/CN2554285Y/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 |