CN206558252U - Two cores are combined leakage coaxial cable - Google Patents

Abstract

A kind of two cores are combined leakage coaxial cable, including two physical foam insulation cores, individual screen layer, total screen layer and oversheath, physical foam insulation core is made up of conductor and insulating barrier, individual screen layer, polyethylene isolation layer are set respectively outside two physical foam insulation cores, and two physical foam insulation cores, which are clustered in after one, is wrapped with total screen layer and oversheath.Advantage and beneficial effect of the present utility model：The cable is composited by two skin foam skin physical foam insulation leakage coaxial cable boundlings, individual screen layer, separation layer is set outside every foamed insulation core, then boundling composite integrated, is constituted by total screen layer, control oversheath.The special shielding form of separation layer is extruded using non-full bag self-adhesion polyester aluminum-plastic composite membrane+the sheet gauze screens of specific thicknesses+, the special shielding construction of cable can be directed to leakage signal after boundling, ensure cable directional monitoring, so as to implement accurate, reliable monitoring to specific strick precaution region and take precautions against.

Description

Two cores are combined leakage coaxial cable

Technical field

The utility model is a kind of leaky cable applied to circumference intrusion defense field.The cable can collect sending and receiving signal Function in one, with transmission line and antenna duplicate transmissions function, can be achieved specific region is monitored and taken precautions against.

Background technology

With the development of science and technology, people are progressively improving for the safety precaution product requirement of important place, such as military base The safety-protection system of the important places such as ground, border fortress, government bodies, police and judicial, prison not only will send police to intrusion behavior Report, also needs to analyze intrusion behavior, judges.And leaky cable is as the signal transmission component of most critical in safety-protection system, Higher requirement is it is also proposed to its structure and performance.Existing leaky cable can not accomplish sending and receiving signal simultaneously, it is impossible to realize Detection and strick precaution to specific region, not solving same cable can sending and receiving integrally transmission, the problems such as needing separated by a distance lay.

The content of the invention

Problem to be solved in the utility model is, overcomes the deficiencies in the prior art to be combined there is provided a kind of two core and sews Coaxial cable, solving single retractable signal cable needs installation question that is separated by a distance, individually laying, effectively avoids Interfering between the leaky cable of two boundlings, it is to avoid the situation failed to report, reported by mistake, with reference to digital technology, high frequency skill Art, computer technology realize the intelligent decision to different objects, analysis invasion or the intention passed by, realize intelligence warning.

The utility model solves its technical problem and takes following technical scheme to realize：

A kind of two cores are combined leakage coaxial cable, including two physical foam insulation cores, individual screen layer, total screen layers And oversheath, physical foam insulation core is made up of conductor and insulating barrier, sets only outside two physical foam insulation cores respectively Vertical screen layer, polyethylene isolation layer, two physical foam insulation cores, which are clustered in after one, is wrapped with total screen layer and oversheath.

Described insulating barrier is three-layer insulated using endothelium-foam-crust, and center froth bed is that nitrogen inflation physical blowing gathers Ethene, cable has low decay, low-loss, can transmit high-frequency digital signal, and endodermis and exodermis have waterproof ability and had Certain physical strength, it is adaptable to underground laying.

Described individual screen layer is non-full-enclosed self-adhesion polyester aluminium/modeling composite membrane of a side opening, two physical blowings A sheet gauze screen is respectively equipped with separation layer between insulated wire cores, the non-full-enclosed of self-adhesion polyester aluminium/modeling composite membrane is pasted Invest on foamed insulation core, and along the exposed foamed insulation core in cable side, shielding exposed section is in the overall outermost of cable core Relative position, it is ensured that space field strength that sending and receiving signal is formed is uniform, signal is radiated around cable, improves cable Irradiation stability, it is to avoid situation about failing to report.

Described sheet gauze screen be sheet tin copper shield net, sheet tin copper shield net be tightly placed in non-exposed polyester aluminium/ Mould at composite membrane shielding, and independently squeeze polyethylene isolation layer.

Described total screen layer uses the opposite winding arrangement of two layers of semi-conductive tape, has both solved the fastening of cable boundling one Property require, and to external world interference serve certain shield effectiveness, meet the use requirement of system.

Described oversheath uses fast light hot polymerization vinyl material, and cable is good from heavy and light, moisture resistance, and family can be embedded in for a long time Outside.Cable profile uses flat pattern, and cable can tile naturally, and holding structure is stable, it is ensured that the stability of signal directed radiation And be easily installed.

The utility model has significant advantage and beneficial effect compared with prior art：

1st, the cable is formed using two leaky cable boundlings, the unique shielding construction of non-full-enclosed, can make every cable Orient to spatial leaks signal, implement accurately detection, monitoring to guard key place, solving single leaky cable need to be separated by It is certain distance, independently installed the problem of lay；

2nd, insulation uses skin-bubble-skin physically foamed pe insulation, and cable has the features such as low decay, low-loss, can passed Defeated high-frequency signal, realizes and carries out intelligent decision to different objects such as animal, personnel, vehicles, confirm invasion or the intention that passes by and Trend；

3rd, special shielding construction ensure that the mutual interference of two cables and the interference of outer signals, it is ensured that cable The reliability that signal is transmitted after boundling, the shielding construction of orientation opening can make the orientation leakage of single foamed cable, realize that region is supervised Control function；

4th, the boundling form design of collection sending and receiving one, makes cable install, lay, debugs simplification, greatly reduce into This；

5th, cable is installed using buried, is difficult to be found by invader, is destroyed.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Wherein 1, physical foam insulation core；2nd, individual screen layer；3rd, separation layer；4th, sheet gauze screen, 5, total screen layer, 6th, oversheath.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, to the embodiment, structure, feature provided according to the utility model And its effect, describe in detail as after.

A kind of two core as shown in Figure 1 is combined leakage coaxial cable, including two physical foam insulation cores 1, independent screens Layer 2, total screen layer 5 and oversheath 6 are covered, physical foam insulation core 1 is made up of conductor and insulating barrier, two physical foam insulations Individual screen layer 2, polyethylene isolation layer 3 are set respectively outside core, and two physical foam insulation cores are clustered in after one outer wrap up in There are total screen layer 5 and oversheath 6.

Described insulating barrier is three-layer insulated using endothelium-foam-crust, and center froth bed is that nitrogen inflation physical blowing gathers Ethene, cable has low decay, low-loss, can transmit high-frequency digital signal, and endodermis and exodermis have waterproof ability and had Certain physical strength, it is adaptable to underground laying.

Described individual screen layer 2 is non-full-enclosed self-adhesion polyester aluminium/modeling composite membrane of a side opening, two physical blowings A sheet gauze screen 4 is respectively equipped with separation layer 3 between insulated wire cores 1, self-adhesion polyester aluminium/non-full-enclosed of modeling composite membrane glues It is attached on foamed insulation core, and along the exposed foamed insulation core in cable side, shielding exposed section is in the overall outermost of cable core The relative position of side, the i.e. dorsal part relative to another physical foam insulation core, it is ensured that the space that sending and receiving signal is formed Field strength is uniform, signal is radiated around cable, improve the irradiation stability of cable, it is to avoid situation about failing to report.

Described sheet gauze screen 4 be sheet tin copper shield net, sheet tin copper shield net be tightly placed in non-exposed polyester aluminium/ Mould at composite membrane shielding, and independently squeeze polyethylene isolation layer 3.

Described total screen layer 5 uses the opposite winding arrangement of two layers of semi-conductive tape, has both solved the tight of cable boundling one Solidity requirement, but interference serves certain shield effectiveness to external world, meets the use requirement of system.

Described oversheath 6 uses fast light hot polymerization vinyl material, and cable is good from heavy and light, moisture resistance, and family can be embedded in for a long time Outside.Cable profile uses flat pattern, and cable can tile naturally, and holding structure is stable, it is ensured that the stability of signal directed radiation And be easily installed.

One embodiment of the present utility model is described in detail above, but the content is only of the present utility model Preferred embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.It is all to be made according to present utility model application scope Equivalent change with improve etc., all should still belong within patent covering scope of the present utility model.

Claims (8)

1. a kind of two core is combined leakage coaxial cable, it is characterised in that：Including two physical foam insulation cores, individual screens Layer, total screen layer and oversheath, physical foam insulation core is made up of conductor and insulating barrier, outside two physical foam insulation cores Individual screen layer, polyethylene isolation layer are set respectively, and two physical foam insulation cores, which are clustered in after one, is wrapped with total shielding Layer and oversheath.

2. two core according to claim 1 is combined leakage coaxial cable, it is characterised in that：Described insulating barrier uses endothelium Layer-froth bed-exodermis is three-layer insulated, and center froth bed is that nitrogen inflates physical blowing polyethylene, endodermis and exodermis tool There is waterproof ability.

3. two core according to claim 1 is combined leakage coaxial cable, it is characterised in that：Described individual screen layer is one Non- full-enclosed self-adhesion polyester aluminium/modeling composite membrane of side opening.

4. two core according to claim 1 is combined leakage coaxial cable, it is characterised in that：Two described physical blowings are exhausted A sheet gauze screen is respectively equipped with separation layer between edge core.

5. two core according to claim 1 is combined leakage coaxial cable, it is characterised in that：Described individual screen layer is non-complete Packet mode, which is pasted, to be invested on foamed insulation core, and along the exposed foamed insulation core in cable side, it is total that shielding exposed section is in cable core The outermost relative position of body.

6. two core according to claim 1 is combined leakage coaxial cable, it is characterised in that：Described total screen layer uses two The layer opposite winding arrangement of semi-conductive tape.

7. two core according to claim 1 is combined leakage coaxial cable, it is characterised in that：Described oversheath is using fast light Hot polymerization vinyl material.

8. two core according to claim 4 is combined leakage coaxial cable, it is characterised in that：Described sheet gauze screen is piece Shape tin copper shield net, sheet tin copper shield net is tightly placed at non-exposed polyester aluminium/modeling composite membrane shielding.