CN2766298Y - Anti-theft alarming device - Google Patents
Anti-theft alarming device Download PDFInfo
- Publication number
- CN2766298Y CN2766298Y CN 200520097137 CN200520097137U CN2766298Y CN 2766298 Y CN2766298 Y CN 2766298Y CN 200520097137 CN200520097137 CN 200520097137 CN 200520097137 U CN200520097137 U CN 200520097137U CN 2766298 Y CN2766298 Y CN 2766298Y
- Authority
- CN
- China
- Prior art keywords
- output terminal
- signal trigger
- trigger equipment
- electric bell
- box body
- 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 an anti-theft alarming device which is matched with a household lockset. The anti-theft alarming device comprises signal trigger equipment; an input end of the signal trigger equipment is connected with a power supply. An output end of the signal trigger equipment is electrically connected with an alarming electric bell by a thermosensitive semiconductor; other output ends are connected with the power supply. When the signal trigger equipment contacts a latch bolt, the signal trigger equipment and a power circuit are switched on directly. When the signal trigger equipment does not contact the latch bolt, the circuit and the alarming electric bell are switched on. The utility model has the advantages that 1 the thermosensitive semiconductor is adopted so that the time of alarming can be delayed and wrong alarming can be avoided. 2 with simple structure and low cost, the anti-theft alarming device can replace a complex delay circuit. 3 the delay time can be changed by selecting the thermosensitive semiconductors of different characteristics.
Description
Technical field
The utility model relates to a kind of burglar alarm that is used with locksets family expenses.
Background technology
In the daily life, door forgets that shutting is very common thing, and stealer is taken advantage of a weak point easily, steals, and prior art also has many about antitheft door lock, but its complex structure mostly, poor practicability, false alarm easily.
Summary of the invention
Problem to be solved in the utility model is to propose a kind of simple in structure, practicality and the high burglar alarm of warning accuracy rate at above-mentioned prior art.
The utility model is adopted solution to be by the problem of the above-mentioned proposition of solution: a kind of burglar alarm, it comprises the signal triggering device, its input end links to each other with power supply, an one output terminal is electrically connected by heat-sensitive semiconductive and warning electric bell, remaining output terminal is connected with power supply, described signalling means flip flop equipment is when its direct and power circuit conducting when dead bolt contacts, and circuit then is conducted with the warning electric bell when not contacting with dead bolt.
Press such scheme, described signal triggering device comprises that box body, the inner side of box body are installed on armature, and armature is connected with box body by spring, and the inner opposite side of box body is an output terminal.
Press such scheme, the output terminal that described heat-sensitive semiconductive and electric bell are electrically connected also is connected with alarm lamp, and remaining output terminal also is connected with safety lamp.
When door is in the stage of opening wide, dead bolt is not oppressed the armature of signal triggering device, then because the resilient force of spring makes armature contact with output terminal, then heat-sensitive semiconductive and electric bell are connected and are inserted power supply, because the effect of heat-sensitive semiconductive, temperature is high more, and its resistance is more little, so through after a while, electric current increases to is enough to drive the warning electric bell, and alarm lamp is lighted simultaneously, reminds us to go to close the door.When on the door lock, dead bolt compressing armature makes it contact with output terminal, the power circuit closure, and the green light place in circuit, then green light is lighted, and represents safety.
Advantage of the present utility model:
1. employing heat-sensitive semiconductive can delayed alarm, avoids wrong warning;
2. simple in structure, cost is low, replaces complicated delay circuit;
3. change the time of time-delay by the heat-sensitive semiconductive of selecting different qualities.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing structure of the present utility model is further described in detail.
As Fig. 1, a kind of burglar alarm, it comprises the signal triggering device, its input end links to each other with power supply 9, an one output terminal is electrically connected by heat-sensitive semiconductive 7 and warning electric bell 8, and its another output terminal is connected with power supply, and described signal triggering device comprises that box body 2, the inner side of box body are installed on armature 3, armature is connected with box body by spring 1, and the inner opposite side of box body is an output terminal.The output terminal 10 that described heat-sensitive semiconductive and electric bell are electrically connected also is connected with alarm lamp 6, and another output terminal 4 also is connected with safety lamp 5.Described signalling means flip flop equipment is when its direct and power circuit conducting when dead bolt contacts, and circuit then is conducted with the warning electric bell when not contacting with dead bolt.When door is in the stage of opening wide, dead bolt is not oppressed the armature of signal triggering device, then because the resilient force of spring makes armature contact with output terminal, then heat-sensitive semiconductive and electric bell are connected and are inserted power supply, because the effect of heat-sensitive semiconductive, temperature is high more, and its resistance is more little, so through after a while, electric current increases to is enough to drive the warning electric bell, and alarm lamp is lighted simultaneously, reminds us to go to close the door.When on the door lock, dead bolt compressing armature makes it contact with output terminal, the power circuit closure, and the green light place in circuit, then green light is lighted, and represents safety.
Claims (3)
1. burglar alarm, it is characterized in that comprising the signal triggering device, its input end links to each other with power supply (9), an one output terminal is electrically connected by heat-sensitive semiconductive (7) and warning electric bell (8), remaining output terminal is connected with power supply, described signalling means flip flop equipment is when its direct and power circuit conducting when dead bolt contacts, and circuit then is conducted with the warning electric bell when not contacting with dead bolt.
2. by the described burglar alarm of claim 1, it is characterized in that described signal triggering device comprises that box body (2), the inner side of box body are installed on armature (3), armature is connected with box body by spring (1), and the inner opposite side of box body is an output terminal.
3. by claim 1 or 2 described burglar alarms, it is characterized in that the output terminal (10) that described heat-sensitive semiconductive and warning electric bell are electrically connected also is connected with alarm lamp (6), remaining output terminal (4) also is connected with safety lamp (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520097137 CN2766298Y (en) | 2005-07-12 | 2005-07-12 | Anti-theft alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520097137 CN2766298Y (en) | 2005-07-12 | 2005-07-12 | Anti-theft alarming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2766298Y true CN2766298Y (en) | 2006-03-22 |
Family
ID=36606959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520097137 Expired - Fee Related CN2766298Y (en) | 2005-07-12 | 2005-07-12 | Anti-theft alarming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2766298Y (en) |
-
2005
- 2005-07-12 CN CN 200520097137 patent/CN2766298Y/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 |