CN2613838Y - Theft-proof alarm device - Google Patents
Theft-proof alarm device Download PDFInfo
- Publication number
- CN2613838Y CN2613838Y CN 03224555 CN03224555U CN2613838Y CN 2613838 Y CN2613838 Y CN 2613838Y CN 03224555 CN03224555 CN 03224555 CN 03224555 U CN03224555 U CN 03224555U CN 2613838 Y CN2613838 Y CN 2613838Y
- Authority
- CN
- China
- Prior art keywords
- door
- window
- circuit
- testing circuit
- electromagnetic switch
- 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 alarm device comprising an electromagnetic switch, an alarming loudspeaker, a power source and a power switch, a detecting circuit and a alarming circuit, wherein the detecting circuit comprises an electromagnetic switch, a power source, an outer connecting line of the alarm device and a connecting terminal connected in series, the alarming circuit comprises an alarming loudspeaker, an electromagnetic switch contact piece, a release contact piece and a power source connected in series. The connecting terminals on the two ends of the detecting circuit are separately arranged on a door or a window and a door frame or a window frame, the terminals on the two ends of the detecting circuit will contact and the detecting circuit is communicated when the door or the window closes. The utility model has the advantages of a simple structure, safe in use, a low cost, and can give an alarm when the door or the window is opened illegally or the circuit exposed is snipped.
Description
Technical field
The utility model relates to a kind of burglar alarm, specifically a kind of burglar alarm that is installed on the door and window.
Prior art
The incident of burglar's burglary happens occasionally, bring property loss to the victim, most of burglary cases show, much all being the burglar enters the room and implements stealing by prying open door and window, so it is necessary that warning device is installed on door and window, present door window antitheft warning device on the market, all be by on door and window, installing vibration inducted switch haply, when door and window is prized by the burglar, vibration inducted switch starts alarm and sounds the alarm, and deterrence burglar and prompting owner reach antitheft purpose to a certain extent, but the alarm of this type also comes with some shortcomings, its shortcoming is to be cut off by the burglar when the circuit that exposes of this alarm, perhaps otherwise circuit is destroyed, and this kind burglar alarm is owing to open circuit and can't report to the police so, lose antitheft function, do not reach antitheft purpose.
The utility model content
At the deficiency that above-mentioned prior art exists, it is a kind of when door and window is illegally opened or the warning device circuit can be reported to the police when being cut off warning device that the utility model provides.
The utility model is achieved in that a kind of door window antitheft warning device, comprise electromagnetic switch, alarm speaker, power supply and power switch, it is characterized in that forming by testing circuit and warning circuit, testing circuit is by electromagnetic switch, power supply, warning device external connection line and connecting terminal are in series, warning circuit is by alarm speaker, the electromagnetic switch contact, return contact and power supply are in series, the connecting terminal at testing circuit two ends is installed on respectively on door (window) fan and door (window) frame, when door (window) closes fashionable testing circuit two terminal contacts contact communication with detection circuit.
The operating voltage of described testing circuit is not higher than safe voltage.
Described testing circuit is connected independent current source respectively with warning circuit.
The utility model compared with prior art has simple in structurely, safe in utilization, and the advantage that cost is low can be reported to the police when door (window) is cut off by the circuit of illegally opening or exposing.
Description of drawings
Fig. 1 is the utility model synoptic diagram, situation when testing circuit is connected;
Fig. 2 is the utility model synoptic diagram, situation when testing circuit disconnects;
Fig. 3 is the utility model synoptic diagram, when testing circuit and warning circuit connect independent current source respectively.
1. electromagnetic switch among the figure, 2. power supply, 3,4. testing circuit two terminal contacts, 5. alarm speaker, 6. contact chip, 7. switch, 8. (window) fan, 9. (window) frame, 10. retracing spring, 11. return contacts, 13. of 12. electromagnet (window).
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified, as shown in Figure 1, 2, burglar alarm is made up of testing circuit and warning circuit, testing circuit is in series by the connecting terminal 3,4 at electromagnetic switch 1, power supply 2, warning device external connection line and testing circuit two ends, the warning device external connection line is contained in outdoor, the connecting terminal 3,4 at testing circuit two ends is loaded on respectively on door (window) fan 8 and door (window) frame 9, fashionable when door (window) 13 passes, two contacts 3,4 contact with each other the communication with detection circuit; Warning circuit is in series by alarm speaker 5, electromagnetic switch contact 6 and power supply 2, and the return contact 11 of electromagnetic switch 1 connects retracing spring 10.When testing circuit is connected, as shown in Figure 1, electromagnet 12 excitations in the electromagnetic switch 1, return contact 11 is broken away from the drawing of retracing spring 10, by electromagnet 12 with draw, make contact 6 and return contact 11 from, thereby warning circuit is in off-state.When testing circuit disconnects, as shown in Figure 2, electromagnet 12 losss of excitation in the electromagnetic switch 1, return contact 11 is not subjected to the attraction of electromagnet 12, and retracing spring 10 restores to the original state, and return contact 11 is retracted with contact 6 join, connect warning circuit and make alarm speaker 5 work, send chimes of doom.
As shown in Figure 3, the utility model is at testing circuit and warning circuit difference separate connection independent current source.
The utility model testing circuit all is in normally off in the ordinary course of things, and the operating voltage of testing circuit is not higher than 36 volts safe voltage, makes the utility model power saving and safety more in use.
The utility model is loaded on testing circuit two terminal contacts 3,4 on door (window) fan 8 and door (window) frame 9 in use earlier, testing circuit was connected in 3,4 contacts of two contacts when door (window) 13 closed, pry open door or the window that burglar alarm is housed as the burglar, when perhaps cutting off detection line, electromagnet 13 losss of excitation of the electromagnetic switch 1 in the detection line are connected warning circuit, warning circuit work, send chimes of doom deterrence burglar and remind owner, thereby reach the purpose of burglar alarm.When not needing burglar alarm when work, the switch 7 of cutting off the electricity supply makes when normally opening door or window burglar alarm can not report by mistake.
Claims (3)
1. door window antitheft warning device, comprise electromagnetic switch (1), alarm speaker (5), power supply (2) and power switch (7), it is characterized in that forming by testing circuit and warning circuit, testing circuit is by electromagnetic switch (1), power supply (2), warning device external connection line and connecting terminal (3), (4) be in series, warning circuit is by alarm speaker (5), electromagnetic switch contact (6), return contact (11) and power supply (2) are in series, the connecting terminal at testing circuit two ends (3), (4) be installed on respectively on door (window) fan (8) and door (window) (9) frame, when door (window) closes fashionable testing circuit two terminal contacts (3), (4) contact communication with detection circuit.
2. door window antitheft warning device according to claim 1 is characterized in that the operating voltage of described testing circuit is not higher than safe voltage.
3. door window antitheft warning device according to claim 1 is characterized in that described testing circuit is connected independent current source respectively with warning circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224555 CN2613838Y (en) | 2003-03-27 | 2003-03-27 | Theft-proof alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224555 CN2613838Y (en) | 2003-03-27 | 2003-03-27 | Theft-proof alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2613838Y true CN2613838Y (en) | 2004-04-28 |
Family
ID=34245646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03224555 Expired - Fee Related CN2613838Y (en) | 2003-03-27 | 2003-03-27 | Theft-proof alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2613838Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298348A (en) * | 2015-11-10 | 2016-02-03 | 成都标建铝业有限公司 | Aluminum-made window with good safety |
| CN107993413A (en) * | 2017-12-05 | 2018-05-04 | 北京工业大学 | A kind of door folding condition intelligent detection device |
| CN112252934A (en) * | 2020-10-19 | 2021-01-22 | 戴文斌 | Capacitance-variable anti-theft alarm door |
-
2003
- 2003-03-27 CN CN 03224555 patent/CN2613838Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298348A (en) * | 2015-11-10 | 2016-02-03 | 成都标建铝业有限公司 | Aluminum-made window with good safety |
| CN107993413A (en) * | 2017-12-05 | 2018-05-04 | 北京工业大学 | A kind of door folding condition intelligent detection device |
| CN112252934A (en) * | 2020-10-19 | 2021-01-22 | 戴文斌 | Capacitance-variable anti-theft alarm door |
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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 |