CN2135810Y - Wire cutting off alarm device for theft-proof door - Google Patents
Wire cutting off alarm device for theft-proof door Download PDFInfo
- Publication number
- CN2135810Y CN2135810Y CN 92239284 CN92239284U CN2135810Y CN 2135810 Y CN2135810 Y CN 2135810Y CN 92239284 CN92239284 CN 92239284 CN 92239284 U CN92239284 U CN 92239284U CN 2135810 Y CN2135810 Y CN 2135810Y
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- China
- Prior art keywords
- warning
- circuit
- door
- network
- described warning
- 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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Abstract
The utility model relates to a wire cutting off alarm device for theft-proof door, which comprises a transistor switching circuit whose output end is connected with an alarm circuit normally open contact and the bell and whose input end is connected with an alarm network. The alarm network is fine metal conducting wires which are embedded in a door body by loop coiling. The transistor collector terminal in the transistor switching circuit is connected with a relay coil in series, and the collector terminal and an emitter terminal are connected with a self-sustaining normally open contact. The utility model has the advantages that the wire cutting off alarm device for theft-proof door can prevent a thief from breaking the door and opening a hole to steal by tools, and can record stealing clues automatically.
Description
The utility model relates to a kind of antitheft door wire break alarm device, sends alerting signal when the robber forces open the door, and can take down the crime clue.
At present, be the crime of registering one's residence of delinquency prevention molecule, various antitheft doors arise at the historic moment, but all can not be fine solution offender force open the door or on door, the punch problem of crime, both having made is metal anti-theft door, also can't stop the offender's crime that has the vapour welding-cutting tool, and can't write down the crime clue.
The purpose of this utility model is to provide a kind of antitheft door wire break alarm device, and this device can send alerting signal when the robber forces open the door, and notes useful clues such as criminal's commit a crime course and body characteristics, for the usefulness of solving a case.
The purpose of this utility model is to realize like this, a transistor switching circuit is arranged, the output terminal of this circuit is connected to warning circuit normally open contact and alarm bell, the input end of this circuit is connected to warning network, this warning network is thin plain conductor, is embedded in Men Tizhong through back-shaped coiling, in transistor switching circuit, relay coil of its transistor collector end serial connection, a collector terminal self-sustaining normally open contact in parallel with emitter terminal.
Except audible alarm, can also and receive a crime report in warning circuit lamp, video camera.Alarm bell, warning lamp can be placed on the duty room of joint defence tissue.Video camera is placed on more hidden position, but will be over against the position on doorway.
The utility model stands alert at any time, when the robber uses tool used in crime to dig a hole on door or destroys antitheft door, can not the warning network on the door can be caused off state with exempting from, transistor collector emitter conducting this moment, warning circuit normally open contact and self-sustaining normally open contact closure, alarm bell, warning lamp and video camera are devoted oneself to work, the behavior of notifying the relevant personnel in time to prevent the offender, and note crime line case.
Therefore, the utility model has the crime of forcing open the door, punch of the robber's of preventing tool using than prior art, automatically the advantage of record crime clue.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1, the utility model electrical schematic diagram
Fig. 2, camera shutter driver synoptic diagram
Fig. 3, antitheft door warning network wiring diagram
Fig. 4, second kind of wiring diagram of antitheft door warning network
Fig. 5, steel antitheft door warning network installation diagram
Referring to accompanying drawing 1 and Fig. 2, the utility model is made up of power supply 1, transistor switching circuit 2, warning circuit 3, warning network 4.Power supply adopts 3 volts of direct supplys, transistor switching circuit and power supply are contained in the electrical equipment box, transistor base stage in the transistor switching circuit is furnished with two biasing resistors, relay coil 5 of collector terminal serial connection, a collector terminal relay normally open contact in parallel with emitter terminal is as the self-sustaining normally open contact 6 of transistor switching circuit, the output terminal of transistor switching circuit is connected to warning circuit normally open contact 7 and alarm bell 8, this alarm bell can be established two, one is installed in indoor, another is installed in the joint defence duty room, except alarm bell, warning lamp 9 can also be inserted, the coil 10 or the video camera 11 of camera shutter driver 12 can be inserted in addition.Fixing camera 14 on the base plate 13 of camera shutter driver, there is an electromagnet 15 in the camera left side, its coil 10 inserts warning circuit, be provided with a driving reed 16 above the camera, this reed right-hand member is fixed on the base plate, its left end is welded with an adhesive 17, and contact 18, contact straight-on camera shutter release button 19 are equipped with in its middle part.Input end at transistor switching circuit inserts warning network 4, and this warning network adopts 0.1 millimeter enameled wire of diameter to make.Referring to accompanying drawing 3,, use lead access transistor on-off circuit input end then with sticking with glue after the enameled wire 20 back-shaped coilings in wooden door 21 indoor sides.Referring to Fig. 4, will be fixed in the interlayer of wooden door 22 after the enameled wire 20 crisscross coilings.Referring to accompanying drawing 5, in the framework 24 of steel antitheft door 23 hollows, penetrate by the thread warning network 25 of enamel-cover.
Claims (6)
1, a kind of antitheft door wire break alarm device, power supply, alarm bell are arranged, it is characterized in that a transistor switching circuit is arranged, the output terminal of this circuit is connected to warning circuit normally open contact and described alarm bell, the input end of this circuit is connected to warning network, this warning network is thin plain conductor, is embedded in Men Tizhong through back-shaped coiling, in the described on-off circuit, relay coil of its transistor collector end serial connection, a collector terminal self-sustaining normally open contact in parallel with emitter terminal.
2, warning device according to claim 1 is characterized in that, is connected to warning lamp, video camera in the described warning circuit.
3, warning device according to claim 1 is characterized in that, is connected to the camera shutter driver coil in the described warning circuit.
4, according to claim 2 or 3 described warning devices, it is characterized in that described warning network is located in the metal anti-theft door hollow frame.
According to claim 2 or 3 described warning devices, it is characterized in that 5, described warning network is thin plain conductor, cross-over configuration is pasted on the wooden door indoor side surface in length and breadth.
6, according to claim 2 or 3, described warning device is characterized in that, described warning network is fixed in the middle of the interlayer of wooden door-plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92239284 CN2135810Y (en) | 1992-11-09 | 1992-11-09 | Wire cutting off alarm device for theft-proof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92239284 CN2135810Y (en) | 1992-11-09 | 1992-11-09 | Wire cutting off alarm device for theft-proof door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2135810Y true CN2135810Y (en) | 1993-06-09 |
Family
ID=33780060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92239284 Expired - Fee Related CN2135810Y (en) | 1992-11-09 | 1992-11-09 | Wire cutting off alarm device for theft-proof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2135810Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760648A (en) * | 2016-11-25 | 2017-05-31 | 安徽鸿路钢结构(集团)股份有限公司 | A kind of anti-theft alarm silver booth |
-
1992
- 1992-11-09 CN CN 92239284 patent/CN2135810Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760648A (en) * | 2016-11-25 | 2017-05-31 | 安徽鸿路钢结构(集团)股份有限公司 | A kind of anti-theft alarm silver booth |
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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 |