CN201877557U - Leaky coaxial cable with copper foils for shielding - Google Patents
Leaky coaxial cable with copper foils for shielding Download PDFInfo
- Publication number
- CN201877557U CN201877557U CN2010206630844U CN201020663084U CN201877557U CN 201877557 U CN201877557 U CN 201877557U CN 2010206630844 U CN2010206630844 U CN 2010206630844U CN 201020663084 U CN201020663084 U CN 201020663084U CN 201877557 U CN201877557 U CN 201877557U
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- CN
- China
- Prior art keywords
- coaxial cable
- leaky coaxial
- copper foil
- insulating barrier
- cable
- 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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- Communication Cables (AREA)
Abstract
The utility model relates to a leaky coaxial cable with copper foils for shielding, consisting of a conductor, an insulating layer, a shielding layer, an inner sheath and an outer sheath which are arranged in sequence from inside to outside, wherein the shielding layer is wound outside the insulating layer and adopts a winding mode of two-layer copper foils with different directions and equal width, i.e., the wide copper foil strips and the narrow copper foil strips are wound on the insulating layer in a staggered manner. In the leaky coaxial cable, omnibearing and three-dimensional detection is realized due to application of the space detection principle, especially preventive detection at specific and important azimuths, the receiving sensitivity is high, the use requirements in the fields are completely met, and the installation, laying and debugging of the cable are simplified; and since embedding installation is adopted, the leaky coaxial cable is not easily found and damaged by invasion bodies, the cost is greatly reduced, and the leaky coaxial cable is widely applied as a special cable of security systems at important places such as high-grade residents, prisons, museums, power stations, banks, government agencies and the like.
Description
Technical field
The utility model belongs to field of cables, and especially a kind of have the function of transmission line and antenna duplicate transmissions and the Copper Foil developed shielding leaky coaxial cable according to leaky coaxial cable.
Background technology
Along with development of science and technology, and people are for the raising of safety precaution product requirement, safety-protection system to important places such as bank, prison, museum, government bodies, police and judicials, not only to give the alarm to intrusion behavior, also need intrusion behavior to be analyzed, judged this has just proposed new requirement to the cable of using in this field.Yet the Weaving type that existing leaky cable adopts, bundle geometric pattern outer conductor signal transmission poor sensitivity, distorted signals, decay and loss are bigger, and disguised relatively poor, signal leakage is inhomogeneous, has reduced reliability and sensitivity that system detects.
Summary of the invention
Order of the present utility model is to overcome the deficiencies in the prior art part, a kind of Copper Foil shielding leaky coaxial cable is provided, this cable can be realized the intelligent decision to different objects in conjunction with digital technology, high frequency technique, computer technology, and the intention of analyzing invasion or passing by, and realizes the intelligence warning.
The invention for solving the technical problem takes following technical scheme to realize:
A kind of Copper Foil shielding leaky coaxial cable, by conductor, insulating barrier, screen, inner sheath, oversheath successively by the lining and outer coaxially constitute, it is characterized in that: described screen is wrapped in outside the insulating barrier, that this screen adopts is double-deck, not in the same way, not wide Copper Foil canoe, promptly wide Copper Foil band and narrow copper foil belt interlock and are wrapped on the insulating barrier.
And described insulating barrier is skin-bubble-Pi physical foam insulation material, and the center froth bed of this insulating barrier is a nitrogen inflation physical blowing polyethylene.
Advantage of the present utility model and beneficial effect are:
1, it is three-layer insulated that the insulating barrier of this cable adopts skin-bubble-Pi, the center froth bed is a nitrogen inflation physical blowing polyethylene, cable has low decay, low-loss, but carry high frequency digital signal, inner sheath has better waterproof, oversheath has increased the vertical compressive resistance of cable, is applicable to underground laying.
2, the screen of this cable adopt double-deck, not in the same way, not wide Copper Foil winding arrangement, Weaving type, bundle geometric pattern outer conductor structural instability have been overcome, the difficult problem of signal transmission poor sensitivity, distorted signals, improved the transmitting power of braiding, bundle geometric pattern shielding harness, but not wide canoe flexible leak, signal leakage is even, guarantees the stability of transmission, can satisfy the requirement of different user, different system.
3, the inner sheath of this cable adopts novel fast light hot polymerization vinyl plastics, has guaranteed that cable has performances such as uvioresistant, waterproof, anti-aging; Oversheath adopts the novel igelite with high flame retardant, can satisfy harsh fire-retardant environmental requirement such as mine, oil field, tunnel.
4, this cable application space exploration principle, realized the detection of omnibearing stereo, the strick precaution in especially specific emphasis orientation is surveyed, the receiving sensitivity height satisfies the instructions for use in above-mentioned field fully, and simplification is installed, laid, debugs to cable, installation is buried in employing underground, be difficult for invaded body and find, destroy, greatly reduce cost, be widely used in the safety-protection system private cable in important places such as senior house, prison, museum, power station, bank, government bodies.
Description of drawings
Fig. 1 is a cross section of the present utility model sectional structure schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by specific embodiment, and following examples are descriptive, are not determinate, can not limit protection range of the present utility model with this.
A kind of Copper Foil shielding leaky coaxial cable, by conductor 1, insulating barrier 2, screen (3,4), inner sheath 5, oversheath 6 successively by the lining and outer coaxially constitute, coaxial installation insulating barrier outside conductor, this insulating barrier is skin-bubble-Pi physical foam insulation material, the center froth bed of insulating barrier is a nitrogen inflation physical blowing polyethylene, make cable have low decay, low-loss characteristics, but the carry high frequency digital signal; Outside insulating barrier, be wound with screen, that this screen adopts is double-deck, not in the same way, not wide Copper Foil canoe, be wide Copper Foil band 3 and narrow copper foil belt 4 staggered being wrapped on the insulating barrier, but not wide canoe flexible leak, guaranteed that signal leakage is even, improved reliability and sensitivity that system detects.
Inner sheath adopts novel fast light hot polymerization vinyl plastics to make, and has improved the performances such as uvioresistant, waterproof, anti-aging of cable; Oversheath adopts the novel igelite with high flame retardant, has satisfied harsh fire-retardant environmental requirement such as mine, oil field, tunnel.
Claims (2)
1. a Copper Foil shields leaky coaxial cable, by conductor, insulating barrier, screen, inner sheath, oversheath successively by the lining and outer coaxially constitute, it is characterized in that: described screen is wrapped in outside the insulating barrier, that this screen adopts is double-deck, not in the same way, not wide Copper Foil canoe, promptly wide Copper Foil band and narrow copper foil belt interlock and are wrapped on the insulating barrier.
2. Copper Foil shielding leaky coaxial cable according to claim 1, it is characterized in that: described insulating barrier is skin-bubble-Pi physical foam insulation material, the center froth bed of this insulating barrier is a nitrogen inflation physical blowing polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206630844U CN201877557U (en) | 2010-12-16 | 2010-12-16 | Leaky coaxial cable with copper foils for shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206630844U CN201877557U (en) | 2010-12-16 | 2010-12-16 | Leaky coaxial cable with copper foils for shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877557U true CN201877557U (en) | 2011-06-22 |
Family
ID=44165467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206630844U Expired - Fee Related CN201877557U (en) | 2010-12-16 | 2010-12-16 | Leaky coaxial cable with copper foils for shielding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361145A (en) * | 2011-08-30 | 2012-02-22 | 珠海汉胜科技股份有限公司 | Leakage coaxial cable of lapped braided outer conductor and production technology thereof |
| CN102394329A (en) * | 2011-10-17 | 2012-03-28 | 江苏俊知技术有限公司 | Outer conductor leaky coaxial cable with novel double-layer winding |
-
2010
- 2010-12-16 CN CN2010206630844U patent/CN201877557U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361145A (en) * | 2011-08-30 | 2012-02-22 | 珠海汉胜科技股份有限公司 | Leakage coaxial cable of lapped braided outer conductor and production technology thereof |
| CN102394329A (en) * | 2011-10-17 | 2012-03-28 | 江苏俊知技术有限公司 | Outer conductor leaky coaxial cable with novel double-layer winding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tianjin Hengteer Wire & Cable Co., Ltd. Assignor: Zhiheng (Tianjin) Industrial Co., Ltd. Contract record no.: 2011120000150 Denomination of utility model: Leaky coaxial cable with copper foils for shielding Granted publication date: 20110622 License type: Exclusive License Record date: 20110817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20161216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |