Anti-theft device for cable
A technology of anti-theft device and cable, which is applied in the direction of anti-theft alarm mechanical start, alarm by breaking/disturbing straightened rope/metal wire, etc. Inconvenience and other problems, to achieve the effect of timely alarm, high accuracy and simple structure
Inactive Publication Date: 2014-08-13
STATE GRID CORP OF CHINA +1
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Problems solved by technology
The theft of cables causes huge economic losses, and its re-laying takes time and effort, causing large-scale and large-scale power outages, which brings inconvenience to production and life
[0004] Chinese patent 2009101624887 discloses an anti-theft cable, which is used to prevent the cable from being stolen, but it requires a special cable, which cannot be used for the anti-theft of the laid cable, and the cost is too high
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Embodiment Construction
[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0017] A cable anti-theft device such as figure 1 , which includes a transmission line 2 and an alarm 1, a power supply 4 and a power switch 5 connected in series on the transmission line 2, one end of the transmission line 2 is connected to the armor 3 of the cable, and the other end of the transmission line 2 is connected to one or more cable cores 7 electrical connection.
[0018] The power supply is always in the connected state. Once the armor 3 and the cable core 7 are turned on, the alarm 1 will send an alarm if there is a current passing through, and the alarm will be timely and fast.
[0019] Another technical solution of the present invention is that the transmission line 2 is electrically connected to the metal core or the copper shield of the cable core 7 .
[0020] In order to be easy to carry, the power supply 4 adopts...
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The invention discloses an anti-theft device for a cable. The anti-theft device comprises a transmission line, an alarm, a power source and a power switch, wherein the alarm, the power source and the power switch are connected to the transmission line in series. One end of the transmission line is connected with an armor of the cable, the other end of the transmission line is electrically connected with one or more cable cores, the transmission line is electrically connected with metal cable cores or copper shields of the cable cores, and the power source is a storage type power source. The anti-theft device further comprises an electric quantity displayer which is connected with the two ends of the power source. The anti-theft device for the cable can be installed at any position of the cable, the cable is protected in the whole process, monitoring blind areas are effectively compensated, an alarm is given in time, the accuracy is high, and the monitoring efficiency is greatly improved; the anti-theft device is simple in structure, convenient to install and low in cost, and the cables do not need to be manufactured specially.
Description
technical field [0001] The invention relates to the technical field of cables. Background technique [0002] With the rapid development of the national economy and the continuous improvement of urban infrastructure, cables for electric power, agricultural cables, highways, railways, mines, etc. have been gradually laid in place in urban and rural areas. At the same time, the cable transformation of overhead lines has gradually increased. It brings great convenience to production and life, and promotes faster and better development of the national economy. [0003] As the length of cable lines continues to increase, the phenomenon of cable theft is increasing. The stolen cables are mainly copper core cables, and the proportion of copper core cables in newly laid cables is also increasing. With the rise in the price of copper and other metals, the theft of laid or out-of-service cable lines has become increasingly rampant. According to statistics, from 2011 to 2013, there wer...
Claims
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IPC IPC(8): G08B13/12
Inventor 马涛邢凯郝春生李雪松赵文涛任陟
Owner STATE GRID CORP OF CHINA