CN2131149Y - Joint defence alarm for doors and windows - Google Patents
Joint defence alarm for doors and windows Download PDFInfo
- Publication number
- CN2131149Y CN2131149Y CN 92231277 CN92231277U CN2131149Y CN 2131149 Y CN2131149 Y CN 2131149Y CN 92231277 CN92231277 CN 92231277 CN 92231277 U CN92231277 U CN 92231277U CN 2131149 Y CN2131149 Y CN 2131149Y
- Authority
- CN
- China
- Prior art keywords
- switch
- door
- window
- doors
- windows
- 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
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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a joint defense alarm device for doors and windows, which can joint defense to doors and windows of buildings effectively to prevent the invasion of a burglar. The utility model is composed of an outer housing, a loudspeaker and an alarm circuit. The utility model is characterized in that a door switch K2 and a window switch K3 are connected in series to form an alarm switch; the door switch k2 is composed of a stationary contact and a movable contact with a magnetic body, and is installed on the border of a door; the corresponding place of a doorframe is provided with a magnetic substance K3 which is a key switch, and the key switch is installed on the border of a window. A power switch is a built-in lock of which the double faces can be opened.
Description
The utility model belongs to the burglar alarm class.
Present anti-theft device divides two classes; one class makes the burglar be difficult to pry open by the structure that changes lock and antitheft; one class by electronic alarm device with antitheft; but which class has all only been strengthened the protection of opposite house; and present robber not only forces open the door and enters buildings and commit a crime; there is sign to be presented at that the burglar leaps in through the window under the increasing situation, so when strengthening the opposite house protection, the anti-theft of strengthening window more and more seems important.
The purpose of this utility model promptly is to provide a kind of warning device of door and window joint defence, with prevent the robber no matter from door still from the intrusion of window.
The utility model is to implement like this.
A kind of door and window joint defense warning device, form by shell (1), loudspeaker (2), warning circuit (3), it is characterized in that: dead bolt (4) and locked groove (5) that power switch K can open built-in lock by the two sides constitute, and are installed on the shell (1), and alarm switch is by door switch K
2With the window K switch
3Be in series K
2Be made of stationary contact and the moving contact that has magnet (6), be installed in the inboard of shell (1) by the door limit, doorframe and magnet (6) corresponding position is equipped with magnetisable material, K
3Be a keyswitch, be installed on the window limit, be connected with warning circuit (3) by lead.
Accompanying drawing is a structural representation of the present utility model, wherein:
1 shell, 2 loudspeakers, 3 warning circuits, 4 dead bolts, 5 locked grooves, 6 magnets, 8 batteries, 9 pilot lamp, 10 keyswitches.
Below in conjunction with accompanying drawing the utility model is further described.
A cover device is installed in a limit, in the doorframe corresponding position one magnetic material is arranged, keyswitch K
3Be installed in the window limit and link to each other with alarm by electric wire, owner can open or lock warning device by keyhole from inside and outside.
When opening warning device with key, dead bolt (4) enters locked groove (5), the alarm power connection, and pilot lamp (9) is bright, with door and window closure, K switch
2, K
3All be in closure state, in case K
2Or K
3Be opened, warning circuit gets electric, begins immediately to report to the police.
The utility model is safe and reliable, and moderate cost has been protected door and window effectively, can extensively be adapted to office, office, and town and country are at home.
Claims (1)
- A kind of door and window joint defense warning device is made up of shell (1), loudspeaker (2), warning circuit (3), it is characterized in that: dead bolt (4) and locked groove (5) that power switch K can open built-in lock by the two sides constitute, and are installed on the shell (1), and alarm switch is by door switch K 2With the window K switch 3Be in series K 2Be made of stationary contact and the moving contact that has magnet (6), be installed in the inboard of shell (1) by the door limit, doorframe and magnet (6) corresponding position is equipped with magnetisable material, K 3Be a keyswitch, be installed on the window limit, be connected with warning circuit (3) by lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92231277 CN2131149Y (en) | 1992-08-18 | 1992-08-18 | Joint defence alarm for doors and windows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92231277 CN2131149Y (en) | 1992-08-18 | 1992-08-18 | Joint defence alarm for doors and windows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2131149Y true CN2131149Y (en) | 1993-04-28 |
Family
ID=33774168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92231277 Expired - Fee Related CN2131149Y (en) | 1992-08-18 | 1992-08-18 | Joint defence alarm for doors and windows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2131149Y (en) |
-
1992
- 1992-08-18 CN CN 92231277 patent/CN2131149Y/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 |