CN2340034Y - Anti-theft device for cable - Google Patents
Anti-theft device for cable Download PDFInfo
- Publication number
- CN2340034Y CN2340034Y CN 97225384 CN97225384U CN2340034Y CN 2340034 Y CN2340034 Y CN 2340034Y CN 97225384 CN97225384 CN 97225384 CN 97225384 U CN97225384 U CN 97225384U CN 2340034 Y CN2340034 Y CN 2340034Y
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- CN
- China
- Prior art keywords
- electromagnetic switch
- cable
- power distribution
- utility
- model
- 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 cable anti-theft device which belongs to an electric appliance. The utility model is characterized in that a return circuit is composed of a switch, an electric horn, a battery and an electromagnetic switch which are connected in series as closed-loop type; the return circuit is installed in an iron luggage which has anti-prying performance, a coil curl of the electromagnetic switch is connected with an electrified cable wire by a conducting wire; thus, the electromagnetic switch is attracted, and a static contact and a movable contact of the electromagnetic switch are disconnected with each other; the cable anti-theft device can start to work when the electromagnetic switch is closed, and the magnetic force of the electromagnetic switch disappears after the electrified cable wire is cut off; thereby, the static contact and the movable contact of the electromagnetic switch are automatically connected with each other, and the cable anti-theft device can be started to send out an alarm sound. The utility model has the advantages of simple production process and strong applicability. When the utility model is used, the electrified cable which is arranged at the field can be provided with the reliable guarantee.
Description
The utility model relates to a kind of alarm, belongs to electric equipment products.
Existing alarm has the photosensitive formula alarm of contact, the former works as certain switch is touched, the latter works as the Infrared that is preset is interdicted, be that alarm starts warning, their common drawback is that the monitoring range of an alarm is little, generally all be arranged on indoor, and more not satisfied monitoring requirement just in the open air.
The purpose of this utility model provides a kind of cable theft-prevention device, be to send the cable design of electricity to the mechanical power distribution cabinet of field work for power distribution room, open the cable theft-prevention device when machinery not operation in evening, in case send the electrical cables line to be cut, the cable theft-prevention device promptly starts warning.
The purpose of this utility model is achieved in that it forms an alarm by switch, electric horn, battery, electromagnetic switch, lead; Above-mentioned various electrical accessorie is installed in the iron sheet case with pick-proof performance; Coil in the electromagnetic switch is connected on the charged cable with lead, electromagnetic switch adhesive this moment, and its stationary contact and moving contact disconnect; Close a switch, the cable theft-prevention device is started working, when the people cuts off cable preparation theft, and the coil blackout in the electromagnetic switch, coil magnetic force disappears, and its stationary contact and moving contact close automatically, and the cable theft-prevention device starts warning.
The utility model provides safety guarantee for the cable of the mechanical power distribution cabinet of field work for power distribution room send electricity, and every mechanically only need a cable theft-prevention device is installed, and cost is low, and adaptability is strong, and is easy for installation.
Now in conjunction with the accompanying drawings the utility model is elaborated:
Fig. 1 is monnolithic case figure of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Circuit diagram when Fig. 3 opens monitoring for the utility model.
Circuit diagram when Fig. 4 implements to report to the police for the utility model.
In Fig. 1, Fig. 2, Fig. 3, Fig. 4, [1] the iron sheet case for having the pick-proof performance, [2] are switch, [2a] is the switch after closing, [3] be electric horn, [4] be battery, [5] are electromagnetic switch, and [5a] is the electromagnetic switch after closing, [6] for sending electricity, power distribution room gives the live electric cable line of the mechanical power distribution cabinet of field work, [6a] is that [7] are power distribution cabinet mechanically by the cable after cutting off, and [8] are power distribution room.
Switch [2], electric horn [3], battery [4], electromagnetic switch [5] is connected into the loop with closed loop, coil in the electromagnetic switch [5] is connected power distribution room [8] with lead and send on the live electric cable line [6] of electricity to the mechanical power distribution cabinet [7] of field work, electromagnetic switch [5] adhesive, its stationary contact and moving contact disconnect, [2a] closes a switch, see accompanying drawing 3, this moment, the cable theft-prevention device was started working, in case power distribution room [8] send electricity to be cut [6a] for the cable of the mechanical power distribution cabinet [7] of field work, coil blackout in the electromagnetic switch [5a], coil magnetic force disappears, and its stationary contact and moving contact close automatically, see accompanying drawing 4, the power supply of battery [4] is by switch [2a], electromagnetic switch [5a], electric horn [3], electric horn [3] pipes, and constitutes to report to the police.
The utility model production technology is simple, and cost is low, and applicability is strong, reliable guarantee is provided for the live electric cable line of the mechanical power distribution cabinet of field work for power distribution room send electricity.
Claims (4)
1, a kind of cable theft-prevention device, it is characterized in that switch [2], electric horn [3], battery [4], electromagnetic switch [5] is connected into the loop with closed loop, and the coil in the electromagnetic switch [5] is connected power distribution room [8] with lead and send electricity to give on the live electric cable line [6] of mechanical power distribution cabinet [7].
2, cable theft-prevention device according to claim 1 is characterized in that utilizing power distribution room [8] to send electricity to the power supply on the live electric cable [6] of mechanical power distribution cabinet [7].
3, cable theft-prevention device according to claim 1, it is characterized in that the interior coil of electromagnetic switch [5] is connected power distribution room [8] with lead and send electricity to give on the live electric cable line [3] of mechanical power distribution cabinet [7], electromagnetic switch [5] adhesive this moment, its stationary contact and moving contact disconnect, when the live electric cable line is cut off [6a], the coil blackout in the electromagnetic switch [5a], magnetic force disappears, its stationary contact and moving contact close automatically, constitute to report to the police.
4, cable theft-prevention device according to claim 1 is characterized in that the various electrical accessories on the series circuit are installed in iron sheet case [1].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97225384 CN2340034Y (en) | 1997-06-17 | 1997-06-17 | Anti-theft device for cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97225384 CN2340034Y (en) | 1997-06-17 | 1997-06-17 | Anti-theft device for cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2340034Y true CN2340034Y (en) | 1999-09-22 |
Family
ID=33939415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97225384 Expired - Fee Related CN2340034Y (en) | 1997-06-17 | 1997-06-17 | Anti-theft device for cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2340034Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104408885A (en) * | 2014-12-01 | 2015-03-11 | 国网上海市电力公司 | Optical fiber pull-apart pre-alarming sensor capable of accumulating electricity through mechanical energy |
-
1997
- 1997-06-17 CN CN 97225384 patent/CN2340034Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104408885A (en) * | 2014-12-01 | 2015-03-11 | 国网上海市电力公司 | Optical fiber pull-apart pre-alarming sensor capable of accumulating electricity through mechanical energy |
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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 |