CN209447610U - A kind of 8 font overhead communication cables - Google Patents

Abstract

The utility model discloses a kind of 8 font overhead communication cables, including main push-towing rope, messenger wire portion, hang neck, the main push-towing rope and messenger wire portion are linked together by hanging neck, the main push-towing rope includes cable core and the cable core sheath that is coated on outside cable core, the messenger wire portion includes messenger wire and the messenger jacket that is coated on outside messenger wire, the cable core sheath, hang neck and messenger jacket integral type extrusion moulding, the two sides for hanging neck are respectively arranged with more glass fiber reinforcement bars, the glass fiber reinforcement bar is flat, more glass fiber reinforcement bars are embedded in the inside for hanging neck, more glass fiber reinforcement bar cross laminates are placed.The utility model provide it is a kind of hang 8 enhanced font overhead communication cables of neck, increase the bearing capacity for hanging neck, main push-towing rope and messenger wire relative position prevented to change, and can prevent birds that from hanging neck and peck and wear.

Description

A kind of 8 font overhead communication cables

Technical field

The utility model relates to communication cable manufacturing technology fields, and in particular to a kind of 8 font overhead communication cables.

Background technique

Communication cable is the electricity for transmitting phone, telegram, fax paper, TV and broadcast program, data and other electric signals Cable.It is formed by the wire stranding of the above mutually insulated of a pair.Communication cable is compared with aerial line, biography big with message capacity Defeated stability height, good confidentiality, it is few by natural conditions and external influences the advantages that.

In various communication power grids and commercial plant, overhead communication cable is widely used in the line system of fixed installation, this The 8 font structure forms that kind cable mostly uses messenger wire to add main push-towing rope hang neck only by protecting between main push-towing rope and messenger wire in the prior art Jacking is formed by connecting, and such connection type has the following deficiencies:

1, the Lack of support for hanging neck easily shifts at neck hanging, and main push-towing rope and messenger wire relative position is caused to change, Make between main push-towing rope and messenger wire that there are certain torsion；

2, it hangs and is only made of the protective cover material of plastics at neck, be easy to hang to peck at neck when unfirmly closing communication cable to wear, lead to main push-towing rope It is separated with messenger wire.

Summary of the invention

8 enhanced font overhead communication cables of neck are hung the technical problem to be solved by the present invention is to provide a kind of, are increased The bearing capacity of neck is hung greatly, main push-towing rope and messenger wire relative position is prevented to change, and can be prevented birds that from hanging neck and peck and be worn.

In order to solve the above-mentioned technical problem, the utility model provides a kind of 8 font overhead communication cables, including main push-towing rope, Neck is hung in messenger wire portion, and the main push-towing rope and messenger wire portion are linked together by hanging neck, and the main push-towing rope includes cable core and is coated on cable core Outer cable core sheath, the messenger wire portion include messenger wire and the messenger jacket that is coated on outside messenger wire, the cable core sheath, hang neck and Messenger jacket integral type extrusion moulding, the two sides for hanging neck are respectively arranged with more glass fiber reinforcement bars, the glass Fiber reinforcement bar be it is flat, more glass fiber reinforcement bars are embedded in the inside for hanging neck, more glass fiber reinforcements Bar cross laminates are placed.

It further comprise the cable core include several groups conductor lines pair in one preferred embodiment of the utility model, every group To being twisted by two single lines, the single line is made of the conductor lines conductor and the insulating layer being coated on outside conductor, if Dry group conductor lines are intertwined to bundle yarn is freely placed through.

It further comprise the cable core include at least two groups conductor lines pair in one preferred embodiment of the utility model, often To being twisted by two single lines, the single line is made of the group conductor lines conductor and the insulating layer being coated on outside conductor, Conductor lines described in every group are to being coated with foil shielding layer.

It further comprise the cable core include cross separation frame and four groups of conductors in one preferred embodiment of the utility model Line pair, four groups of conductor lines in four separated regions for being located at cross separation frame, conductor lines described in every group to be by Two single lines are twisted, and the single line is made of conductor and the insulating layer being coated on outside conductor.

It further comprise that copper-wire braided layer, copper wire are provided with outside the cable core in one preferred embodiment of the utility model Braiding layer includes copper wire and fiber, and the copper wire dredges the fiber of cloth with broadwise or copper wire is interweaved through Xiang Mibu, forms weaving Structure.

It further comprise that drain wire is provided with outside the copper-wire braided layer in one preferred embodiment of the utility model.

In one preferred embodiment of the utility model, further comprise the messenger wire be steel wire, the steel wire is by more Root zinc-coated wire is twisted to be formed.

In one preferred embodiment of the utility model, further comprises the cable core sheath, hangs neck and messenger jacket is equal It is formed by polyethylene sheath material or low-smoke halogen-free flame-retardant sheath material extrusion molding.

The utility model has the beneficial effects that

One, the utility model are respectively arranged with more flat glass fiber reinforcement bars, glass in the two sides for hanging neck Fiber reinforcement bar further enhances the bearing capacity for hanging neck, and making to hang the main push-towing rope under neck can protect always with the messenger wire portion hung on neck A relatively parallel positional relationship is held, prevents from twisting between main push-towing rope and messenger wire.

Secondly, more glass fiber reinforcement bars be embedded in the inside for hanging neck, more glass fiber reinforcement bars interlock Lamination is placed, and the glass burr on glass fiber reinforcement bar can play the role of certain anti-unfirmly closing to the sheath hung at neck, When hanging neck of communication cable is stung when the animals such as birds peck, the glass burr on glass fiber reinforcement bar can stab the mouth of birds Portion, prevention birds, which continue to peck, to be stung.

Detailed description of the invention

Fig. 1 is the cross section structure schematic diagram of the first embodiment of the utility model；

Fig. 2 is the cross section structure schematic diagram of the second embodiment of the utility model；

Fig. 3 is the cross section structure schematic diagram of the 3rd embodiment of the utility model.

Figure label explanation: 1, cable core；11, conductor；12, insulating layer；2, cable core sheath；3, neck is hung；31, glass fibre Enhance bar；4, messenger wire；41, zinc-coated wire；5, messenger jacket；6, foil shielding layer；7, cross separation frame；8, copper-wire braided layer； 9, drain wire.

Specific embodiment

The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.

Referring to Fig.1 shown in -3, the 8 font overhead communication cables of the utility model, including main push-towing rope, messenger wire portion, neck 3 is hung, The main push-towing rope and messenger wire portion are linked together by hanging neck 3, and the main push-towing rope includes cable core 1 and the cable core being coated on outside cable core 1 shield Set 2, is provided with conductor lines pair in the cable core 1, the conductor lines to for low coverage voice communication and long distance high frequency carrier and Digital communication and signal transmission, the cable core sheath 2 play the protective effect to cable core 1, and the messenger wire portion includes messenger wire 4 and packet The messenger jacket 5 outside messenger wire is overlayed on, the messenger wire portion primarily serves carrying effect, and the messenger wire portion can make the communication cable certainly Holding the aerial laying of formula, the cable core sheath 2 hangs 5 integral type extrusion moulding of neck 3 and messenger jacket, the cable core sheath 2, Neck 3 and messenger jacket 5 are hung by the molding die coextrusion mold of 8 fonts, it is parallel in the two sides for hanging neck 3 while co-extrusion It is embedded with multiple groups glass fiber reinforcement bar 31, the glass fiber reinforcement bar 31 is flat, more glass fiber reinforcement bars 31 It is embedded in the inside for hanging neck 3, more 31 cross laminates of glass fiber reinforcement bar are placed, and guarantee glass fiber reinforcement bar 31 Between there is no gap.

Shown in referring to Fig.1, the first embodiment of the 8 font overhead communication cables of the utility model, if the cable core 1 includes A dry group conductor lines pair, conductor lines described in every group to being twisted by two single lines, led by conductor 11 and being coated on by the single line Insulating layer 12 outside body 11 forms, and several groups conductor lines are intertwined to bundle yarn is freely placed through, logical in the present embodiment It is provided with conductor lines pair more as far as possible in communication cable, is provided with 50~100 pairs of conductor lines pair in cable core 1 under normal conditions, meets The communication requirement of large core number on main line communication line.

Referring to shown in Fig. 2, the second embodiment of the 8 font overhead communication cables of the utility model, the cable core 1 includes extremely Few two groups of conductor lines pair, for conductor lines described in every group to being twisted by two single lines, the single line is by conductor 11 and is coated on Insulating layer 12 outside conductor 11 forms, and conductor lines described in every group pass through aluminium between conductor lines pair to foil shielding layer 6 is coated with Foil shielded layer 6 is shielded, and the anti-interference ability inside communication cable is further improved.

Referring to shown in Fig. 3, the 3rd embodiment of the 8 font overhead communication cables of the utility model, the cable core 1 includes ten Four tops of splitting of words frame 7 and four groups of conductor lines pair, the cross separation frame 7 are in contact with cable core sheath 2, by entire cable core 1 is separated into four separated regions, and four groups of conductor lines are in four separated regions for being located at cross separation frame 7, often The group conductor lines are to being twisted by two single lines, and the single line is by conductor 11 and the insulating layer 12 being coated on outside conductor 11 Composition, cross separation frame 7 enhances the stability of the construction of cable, effectively avoids external force to extrusion deformation caused by cable, from And ensure that the stability of cable parameters, and it is improved the working frequency of cable, data transmission bauds is accelerated, and And 7 surface of cross separation frame is equipped with separation frame shielded layer, and separation frame top is in contact with cable core sheath 2 again, thus structure At to interfering with each other between conductor lines pair to the individually shielded of group, had both been avoided in each marker space, extraneous magnetic field pair is also prevented The interference of cable and conductor lines pair has fabulous shield effectiveness, using the shielding construction, processes, mentions convenient for the production of cable The high whole anti-electromagnetic interference capability of cable, avoid data transmit in error code phenomenon.

Preferably, in three above embodiment, copper-wire braided layer 8 is provided with outside the cable core 1, copper-wire braided layer 8 is wrapped Copper wire and fiber are included, the copper wire dredges the fiber of cloth with broadwise or copper wire is interweaved through Xiang Mibu, forms textile structural, institute Shielding action can be played to electromagnetic interference and radio frequency interference by stating copper-wire braided layer 8, be provided with drainage outside the copper-wire braided layer 8 Line 9, the drain wire 9 can be avoided thunder and lightning and directly hit cable, in general, such as hit the direct lightning strike current peak of drain wire 9 Value is not higher than 15KA, hardly happens counterattack to cable, by the lightning current of the flowing on drain wire 9, produces on cable The induced current contrary with the lightning current from lightning strike spot direct aerial drainage to cable, is substantially reduced electric current total on cable, To reduce the overvoltage on cable core 1 between copper-wire braided layer 8.

Specifically, the messenger wire 4 is steel wire, and the steel wire is formed by 6~9 thin zinc-coated wire 41 is twisted, by more The twisted messenger wire 4 formed of the thin zinc-coated wire 41 of root is compared with the messenger wire 4 that the identical individual wire of its diameter is constituted, tensile property More preferably.

Specifically, the cable core sheath 2, hang neck 3 and messenger jacket 5 by polyethylene sheath material or low-smoke non-halogen flame-retardant Protective cover material extrusion molding forms, and different protective cover materials can be selected according to different use environments；The low-smoke halogen-free flame-retardant sheath material Compared to traditional polyethylene sheath material uvioresistant, waterproof is mould proof, resisting environmental stress and cracking；And no acidic gas release, Do not corrode calculator room equipment, the indoor environment (wiring, surface wiring in such as ceiling) of high fire-retardance grade is suitble to use.

Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.

Claims (8)

1. a kind of 8 font overhead communication cables, which is characterized in that including main push-towing rope, messenger wire portion, hang neck, the main push-towing rope and messenger wire Portion is linked together by hanging neck, and the main push-towing rope includes cable core and the cable core sheath that is coated on outside cable core, and the messenger wire portion includes Messenger wire and the messenger jacket being coated on outside messenger wire, the cable core sheath hangs neck and messenger jacket integral type extrusion moulding, described The two sides for hanging neck are respectively arranged with more glass fiber reinforcement bars, and the glass fiber reinforcement bar is flat, more glass Fiber reinforcement bar is embedded in the inside for hanging neck, and more glass fiber reinforcement bar cross laminates are placed.

2. 8 font overhead communication cable as described in claim 1, which is characterized in that the cable core includes several groups conductor lines Right, conductor lines described in every group are to being twisted by two single lines, and the single line is by conductor and the insulating layer being coated on outside conductor Composition, several groups conductor lines are intertwined to bundle yarn is freely placed through.

3. 8 font overhead communication cable as described in claim 1, which is characterized in that the cable core includes at least two groups conductor Line pair, conductor lines described in every group are to being twisted by two single lines, and the single line is by conductor and the insulation being coated on outside conductor Layer composition, conductor lines described in every group are to being coated with foil shielding layer.

4. 8 font overhead communication cable as described in claim 1, which is characterized in that the cable core include cross separation frame and Four groups of conductor lines pair, four groups of conductor lines are in four separated regions for being located at cross separation frame, conductor described in every group To being twisted by two single lines, the single line is made of line conductor and the insulating layer being coated on outside conductor.

5. the 8 font overhead communication cables as described in claim 1-4 any one, which is characterized in that be arranged outside the cable core There is copper-wire braided layer, copper-wire braided layer includes copper wire and fiber, and the copper wire dredges the fiber or copper wire of cloth with broadwise through Xiang Mibu It is interweaved, forms textile structural.

6. 8 font overhead communication cable as claimed in claim 5, which is characterized in that the row of being provided with outside the copper-wire braided layer Streamline.

7. 8 font overhead communication cable as described in claim 1, which is characterized in that the messenger wire is steel wire, and the steel twists Silk is formed by more zinc-coated wires are twisted.

8. 8 font overhead communication cable as described in claim 1, which is characterized in that the cable core sheath hangs neck and messenger wire Sheath is formed by polyethylene sheath material or low-smoke halogen-free flame-retardant sheath material extrusion molding.