CN203165119U - Door and window limiting antitheft alarm - Google Patents
Door and window limiting antitheft alarm Download PDFInfo
- Publication number
- CN203165119U CN203165119U CN 201320122733 CN201320122733U CN203165119U CN 203165119 U CN203165119 U CN 203165119U CN 201320122733 CN201320122733 CN 201320122733 CN 201320122733 U CN201320122733 U CN 201320122733U CN 203165119 U CN203165119 U CN 203165119U
- Authority
- CN
- China
- Prior art keywords
- door
- window
- limit switch
- spring
- alarm
- 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 aims at designing a door and window limiting antitheft alarm which can carry out alarming the moment a door or window is opened by a theft. The door and window limiting antitheft alarm includes a limit switch, the limit switch includes an upper movable sheet, the upper movable sheet is connected with one end of a spring, and the other end of the spring is connected with a lower contact; and the limit switch, a loudspeaker, a power switch and a power supply are connected in series to form an alarm circuit. Key to the antitheft alarm is on/off of the circuit, so that the limit switch is used to limit positions of the window and door, wherein when the window or door is opened, the upper sheet together with the spring is lifted to enable contact of the two contacts, thereby forming a closed circuit, and emitting alarming by the loudspeaker.
Description
Technical field
The utility model belongs to safety alarm device, particularly the spacing burglar alarm of door and window of reporting to the police by the spacing realization of door and window.
Background technology
Existing anti-theft product adopts opening, breaking of infrared ray, photoresistance and electromagnetic relay control circuit mostly, the cost height, and be unfavorable for that installation is hiding, and it is attractive in appearance to influence the room, and cost is higher, the not very willing acceptance of user.
Summary of the invention
The utility model purpose is the spacing burglar alarm of a kind of door and window of design, in time reports to the police when opening door and window with the realization robber.
Specifically, the spacing burglar alarm of door and window has a limit switch, and described limit switch has the top movable plate, and the top movable plate is connected with spring one end, and the other end of spring is connected with the contact, below; Limit switch and warning circuit and loudspeaker, power switch, power series constitute warning circuit.
The key of this device is opening, breaking of circuit, so adopt limit switch, limits the door and window position, in case door and window is opened, the top thin slice makes two contact points contacts together with spring one the same lifting, and forms path, and loudspeaker gives the alarm.
The advantage of this alarm is: simpler than the alarm system on the market, cost is low, is convenient to hide, and is adapted at average family and moves back popularization, can also be integrated with door and window, and with the door and window fabrication and installation.
Description of drawings
Figure is the utility model structural representation.
Embodiment
As shown in the figure, have a limit switch 4 that is installed on the door and window, described limit switch 4 has the top movable plate, and the top movable plate is connected with spring one end, and the other end of spring is connected with the contact, below; Limit switch 4 and warning circuit and loudspeaker 3, power switch 2, power supply 1 are connected in series and constitute warning circuit.
Operation instruction: in case the thief forces open the door, prizes window, door and window burglary (limit switch closure) is opened in attempt, alarm can send strong alarm song, draws back illegal invasion person with fear, reminds owner and people on every side to catch a thief.Can be controlled by power switch when oneself wanting door window.
Claims (1)
1. the spacing burglar alarm of door and window is characterized in that having a limit switch (4) that is installed on the door and window, and described limit switch (4) has the top movable plate, and the top movable plate is connected with spring one end, and the other end of spring is connected with the contact, below; Limit switch (4) and warning circuit and loudspeaker (3), power switch (2), power supply (1) are connected in series and constitute warning circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320122733 CN203165119U (en) | 2013-03-19 | 2013-03-19 | Door and window limiting antitheft alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320122733 CN203165119U (en) | 2013-03-19 | 2013-03-19 | Door and window limiting antitheft alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203165119U true CN203165119U (en) | 2013-08-28 |
Family
ID=49026286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320122733 Expired - Fee Related CN203165119U (en) | 2013-03-19 | 2013-03-19 | Door and window limiting antitheft alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203165119U (en) |
-
2013
- 2013-03-19 CN CN 201320122733 patent/CN203165119U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20150319 |
|
| EXPY | Termination of patent right or utility model |