CN2786719Y - Anti-theft alarming equipment - Google Patents
Anti-theft alarming equipment Download PDFInfo
- Publication number
- CN2786719Y CN2786719Y CN 200420057772 CN200420057772U CN2786719Y CN 2786719 Y CN2786719 Y CN 2786719Y CN 200420057772 CN200420057772 CN 200420057772 CN 200420057772 U CN200420057772 U CN 200420057772U CN 2786719 Y CN2786719 Y CN 2786719Y
- Authority
- CN
- China
- Prior art keywords
- alarm
- conductive contact
- contact blade
- overcoat
- tongue bars
- 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 a theft preventing alarm, which is composed of sensors, a power supply, a switch, and an alarm, wherein a plurality of sensors are respectively connected with the power supply, the switch and the alarm to form a loop after connected in parallel. The sensors of the theft preventing alarm are arranged on the inner side of a hinge of a door and window frame. When a door and a window are closed, a tongue bar is pressed into an outer sleeve, two contact pieces are separated to form a broken circuit and the alarm does not give the alarm. When the door and the window are opened, the tongue bar is extended outwards, the two contact pieces are contacted to form a loop and the alarm gives the alarm. The theft preventing alarm has the advantages of simple structure and low cost. The theft preventing alarm is less complicated and expensive than an infrared sensor or a radar. Both installation and operation are convenient, and the theft preventing alarm has invisibility. Only if the door and the window are opened, the theft preventing alarm gives the alarm and false alarm is avoided.
Description
Technical field
The utility model relates to a kind of burglar alarm.
Background technology
Present various burglary-resisting installation mainly adopts infrared induction or Radar Technology, and these equipment not only cost an arm and a leg, and installs, uses, safeguards complexity, and wrong report is usually arranged, and makes troubles to life on the contrary.
Summary of the invention
The purpose of this utility model provides a kind of burglar alarm in order to overcome the problem of above-mentioned existence, and it is simple in structure, installs, uses, safeguards all very convenient, and has disguise.
The utility model is achieved in that a kind of burglar alarm, is made up of sensor, power supply, relay, switch and alarm, will be connected into the loop with power supply, relay, switch and alarm respectively again after a plurality of sensor parallel connections.Each sensor connects behind light emitting diode and the switch in parallel more respectively.
Described sensor is made up of overcoat, tongue bars, spring and conductive contact blade, one end of spring is fixed on cylindrical overcoat one bottom portion, the spring other end links to each other with the tongue bars bottom, a conductive contact blade is fixed in the tongue bars bottom, another conductive contact blade is fixed on the tongue bars exit of the overcoat other end, when tongue bars all was drawn out overcoat, the fixing conductive contact blade in tongue bars bottom just contacted with the conductive contact blade at overcoat place, and each conductive contact blade is drawn lead respectively.
The utility model is loaded on sash loose-leaf inboard, and when door and window was closed, tongue bars was pressed in the overcoat, and two contacts separately form and open circuit, and alarm is not reported to the police, and when door and window was opened, tongue bars stretched out, and the contact of two contacts forms the loop, alarm equipment alarm.The utility model is simple in structure, and cost is low, does not have infrared sensor or radar complexity, costliness, installs and uses all easily, and has disguise, has only when door and window is opened and just reports to the police, and has avoided wrong report.
Description of drawings
Fig. 1 is the sensor construction synoptic diagram.
Fig. 2 is the circuit diagram of alarm.
Embodiment
The utility model will be further described in conjunction with the accompanying drawings.
As shown in Figure 2, a kind of burglar alarm, by sensor, power supply, relay, switch and electric bell are formed, connect behind light emitting diode and the switch three sensors in parallel more respectively, again respectively with power supply, relay, switch and electric bell are connected into the loop, as shown in Figure 1, sensor is by overcoat 3, tongue, 4, spring 5 and conductive contact blade 6 are formed, one end of spring 5 is fixed on cylindrical overcoat one bottom portion, spring 5 other ends link to each other with the tongue bars bottom, a conductive contact blade 6 is fixed in the tongue bars bottom, and another conductive contact blade 6 is fixed on the tongue bars exit of the overcoat other end, when tongue bars ejects from overcoat, the fixing conductive contact blade in tongue bars bottom just contacts with the conductive contact blade at overcoat place, and each conductive contact blade is drawn lead respectively.Sensor is loaded on sash loose-leaf inboard, and when door and window was closed, tongue bars was pressed in the overcoat, and two contacts separately form and open circuit, and alarm is not reported to the police, and when door and window was opened, tongue bars was drawn out, and the contact of two contacts forms the loop, alarm equipment alarm.
Claims (3)
1, a kind of burglar alarm is made up of sensor, power supply, relay, switch and alarm, it is characterized in that: will be connected into the loop with power supply, relay, switch and alarm respectively again after a plurality of sensor parallel connections.
2, burglar alarm according to claim 1, it is characterized in that: described sensor is made up of overcoat, tongue bars, spring and conductive contact blade, one end of spring is fixed on cylindrical overcoat one bottom portion, the spring other end links to each other with the tongue bars bottom, a conductive contact blade is fixed in the tongue bars bottom, another conductive contact blade is fixed on the tongue bars exit of the overcoat other end, when tongue bars ejects from overcoat, the fixing conductive contact blade in tongue bars bottom just contacts with the conductive contact blade at overcoat place, and each conductive contact blade is drawn lead respectively.
3, burglar alarm according to claim 1 is characterized in that: each sensor connects behind light emitting diode and the switch in parallel more respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420057772 CN2786719Y (en) | 2004-12-16 | 2004-12-16 | Anti-theft alarming equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420057772 CN2786719Y (en) | 2004-12-16 | 2004-12-16 | Anti-theft alarming equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786719Y true CN2786719Y (en) | 2006-06-07 |
Family
ID=36775288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420057772 Expired - Fee Related CN2786719Y (en) | 2004-12-16 | 2004-12-16 | Anti-theft alarming equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2786719Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107274620A (en) * | 2017-07-27 | 2017-10-20 | 成都巨盛科技有限公司 | Borrow the burglary-resisting installation of room |
-
2004
- 2004-12-16 CN CN 200420057772 patent/CN2786719Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107274620A (en) * | 2017-07-27 | 2017-10-20 | 成都巨盛科技有限公司 | Borrow the burglary-resisting installation of room |
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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 |