CN2362164Y - Burglar alarm - Google Patents
Burglar alarm Download PDFInfo
- Publication number
- CN2362164Y CN2362164Y CN 98249490 CN98249490U CN2362164Y CN 2362164 Y CN2362164 Y CN 2362164Y CN 98249490 CN98249490 CN 98249490 CN 98249490 U CN98249490 U CN 98249490U CN 2362164 Y CN2362164 Y CN 2362164Y
- Authority
- CN
- China
- Prior art keywords
- movable contact
- spring
- pull wire
- alarm
- utility
- 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-prevention alarm which comprises an alarm circuit and pull wire plates, wherein, a plurality of pull wires are arranged between the pull wire plates, one end of each pull wire is fixed to one pull wire plate, the other end of each pull wire is provided with a movable contact piece and a spring, the spring is fixedly arranged on the other pull wire plate, both ends on the motion direction of the movable contact piece are respectively provided with a fixed contact piece, and the movable contact pieces and the fixed contact pieces form a switch circuit which can be a main switch of the alarm circuit. Owing to the adoption of the devices, the theft-prevention alarm of the utility model has the advantages of simple structure, low cost and no power consumption in the alert state.
Description
The utility model relates to a kind of burglar alarm.
Along with the raising of people's living standard, people's antitheft consciousness is also more and more higher, and the antitheft possibility that provides also is provided in the raising of science and technology.Exist panoramic alarm on the existing market.As infrared ray, temperature sense and remote sensing etc.But they all exist following shortcoming: 1, complex structure, though above-mentioned any all be high-tech product, so their inner structure all is very complicated, and the result that complex structure the caused high and daily servicing inconvenience that is failure rate; 2, cost height, high-tech always closely links to each other with expensive, and expensive result is the not ubiquity of promoting the use of; 3, consumed power is always wanted in power consumption, the burglar alarm of electricity consumption work.
The purpose of this utility model is to overcome the above-mentioned defective of prior art, provide a kind of simple in structure, cost is low and the burglar alarm of not power consumption when the state of alert.
The utility model comprises alarm circuit and the strain plate more than two, between two strain plates, be provided with some backguys, one end of backguy is fixed therein on the strain plate, the other end is provided with movable contact spring, be installed with spring on another piece strain plate, the other end of spring is connected with the movable contact spring end of backguy and backguy is stretching, respectively is provided with static contact at the two ends of movable contact spring direction of motion, movable contact spring is formed on-off circuit with static contact, becomes the master switch of alarm circuit.
Since adopted above-mentioned setting, burglar alarm described in the utility model have simple in structure, cost is low and in the advantage of state of alert power consumption at present.
Further illustrate particular content of the present utility model below in conjunction with drawings and Examples.
Figure: the utility model step line scheme one;
Fig. 2: the utility model step line scheme two;
The structural representation of the contact part of Fig. 3: embodiment 1;
The structural representation of the contact part of Fig. 4: embodiment 2.
What Fig. 1 represented is the step line scheme of the utility model on enclosure wall, and what Fig. 2 represented is the step line scheme of the utility model on window.As shown in Figure 1 and Figure 2, the utility model comprises alarm circuit and strain plate 2, between two strain plates 2, be provided with some backguys 3, one end of backguy 3 is fixed therein on the strain plate 2, as shown in Figure 3, Figure 4, the other end of backguy 3 is provided with movable contact spring 4, on another piece strain plate 2, be installed with spring 5, the other end of spring 5 is connected with movable contact spring 4 ends of backguy 3 and backguy 3 is stretching, two ends in movable contact spring 4 direction of motion respectively are provided with static contact 6, movable contact spring 4 is formed on-off circuit with static contact 6, becomes the master switch of alarm circuit 1.Because movable contact spring is located between two static contacts, so when backguy was pullled, collided or broken, movable contact spring all can contact with static contact, thereby connects warning circuit, sends warning.And under the state of alert movable contact spring and static contact be from, so whole device is not power consumption.
Claims (1)
1, a kind of burglar alarm, comprise that alarm circuit is characterized in that: also comprise the strain plate (2) more than two, between two strain plates (2), be provided with some backguys (3), one end of backguy (3) is fixed therein on the strain plate (2), the other end is provided with movable contact spring (4), on another piece strain plate (2), be installed with spring (5), the other end of spring (5) is connected with movable contact spring (4) end of backguy (3) and backguy (3) is stretching, two ends in movable contact spring (4) direction of motion respectively are provided with static contact (6), movable contact spring (4) is formed on-off circuit with static contact (6), becomes the master switch of alarm circuit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249490 CN2362164Y (en) | 1998-12-23 | 1998-12-23 | Burglar alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249490 CN2362164Y (en) | 1998-12-23 | 1998-12-23 | Burglar alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2362164Y true CN2362164Y (en) | 2000-02-02 |
Family
ID=33994232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98249490 Expired - Fee Related CN2362164Y (en) | 1998-12-23 | 1998-12-23 | Burglar alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2362164Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513242A (en) * | 2014-12-26 | 2016-04-20 | 吴任平 | Orchard antitheft apparatus |
-
1998
- 1998-12-23 CN CN 98249490 patent/CN2362164Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513242A (en) * | 2014-12-26 | 2016-04-20 | 吴任平 | Orchard antitheft apparatus |
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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 |