CN208271583U

CN208271583U - A kind of anti-drawing coaxial cable having elastic force

Info

Publication number: CN208271583U
Application number: CN201820188572.0U
Authority: CN
Inventors: 冯胜明
Original assignee: Anhui Huaxin Wire & Cable Co Ltd
Current assignee: Anhui Huaxin Wire & Cable Co Ltd
Priority date: 2018-02-05
Filing date: 2018-02-05
Publication date: 2018-12-21
Anticipated expiration: 2028-02-05

Abstract

The utility model discloses a kind of anti-drawing coaxial cables for having elastic force, including electric conductor, insulation fill stratum, inner sheath, external conductor layer, the external shielding layer, oversheath being arranged successively from the inside to the outside；The electric conductor includes central tube and control conductor, in the centrally disposed pipe of the control conductor；Gap between the central tube and inner sheath is set as insulation fill stratum；It is provided with rubber bullet block and drawing piece in the insulation fill stratum, elastic skeleton structure is fixed by drawing piece between the two panels rubber bullet block；The inner sheath periphery is extruded with external conductor layer；External conductor layer periphery is provided with external shielding layer；The external shielding layer periphery is extruded with oversheath.The utility model structure is simple, satisfactory mechanical property, and bending, tensile property are more excellent, and heat-resisting anti-aging property is also more excellent, and the advantage strong, at low cost with bearing capacity, and the transmission of data-signal can be effectively ensured.

Description

A kind of anti-drawing coaxial cable having elastic force

Technical field

The utility model relates to cable production arts, more particularly to a kind of anti-drawing coaxial cable for having elastic force.

Background technique

With the development of national economy, the raising of people's living standard, the commodity to circulate in the market are also increasingly particular about function Energy property, safety, service life etc., cable product, which has been at, to be continuously updated, is mature, in innovation cyclic process, wire and cable The development process of product is substantially the update process of material.Wire and cable is widely used, and different use occasions are to its property It can require widely different.

The sheath material of most of cable, except must have higher insulation resistance, dieletric strength or low dielectric loss Outside, it is necessary to take into account good physical mechanical property, such as tension, counter-bending, anti-vibration, antitorque；And due to adapt to not Same use environment and occasion has the requirement such as tear-proof, high-low temperature resistant, resistant to bending, oil resistant, solvent resistant；Some then be at The composite request that product cable proposes, such as radially, longitudinally pressure sealing, fire-retardant, fire resisting.Before these requirements are overlapped mutually It puts, needs to improve the comprehensive performance of cable cover(ing).

Summary of the invention

The purpose of this utility model is to provide a kind of anti-drawing coaxial cable for having elastic force, structure is simple, mechanicalness Can be good, bending, tensile property are more excellent, and heat-resisting anti-aging property is also more excellent, and have bearing capacity strong, and at low cost is excellent Point, excellent combination property.

To achieve the above object, the utility model provides the following technical solutions:

A kind of anti-drawing coaxial cable having elastic force, comprising: electric conductor, insulation fill stratum, inner sheath, external conductor Layer, external shielding layer, oversheath, the electric conductor, insulation fill stratum, inner sheath, external conductor layer, external shielding layer, oversheath by It is interior to outer to be arranged successively；The electric conductor includes central tube and control conductor, described in the centrally disposed pipe of the control conductor It controls conductor and copper wire bundle is twisted by multiply tinned copper wire, then twisted again by seven groups of copper wire bundles；The central tube and inner sheath Between gap be set as insulation fill stratum；Rubber bullet block and drawing piece, the two panels rubber are provided in the insulation fill stratum Elastic skeleton structure is fixed by drawing piece between glue bullet block, the elastic skeleton structure peripheral and central tube and inner sheath it Between gap pass through flame-retardant elastomer fill；The inner sheath periphery is extruded with external conductor layer, and the external conductor layer is adopted Inner sheath periphery is longitudinally arranged closely in thin copper wire, in the wrapped one layer of compound copper-plastics band of outer layer；The external conductor layer periphery It is provided with external shielding layer, the external shielding layer mutually is worked out to link for high-intensitive galvanized copper wire reticulates structure；The external shield Layer periphery is extruded with oversheath.

Further, the cross section of the rubber bullet block is ellipse, and the long axis both ends of the rubber bullet block are respectively in Heart pipe and inner sheath lean.

Further, the drawing piece is stainless steel strip.

Further, the flame-retardant pull tension rope extended longitudinally along the cable is provided in the oversheath.

Further, the flame-retardant pull tension rope is provided with 4, and 4 flame-retardant pull tension ropes are separately positioned on the upper of cable The corresponding position of lower left and right four.

Compared with prior art, the utility model has the beneficial effects that the utility model structure is simple, mechanical performance is good It is good, by the elastic skeleton structure of the fixed composition of the rubber bullet block and drawing piece that are arranged inside cable, cable is increased significantly Anti-torsion and bending property, bending, tensile property are more excellent, while heat-resisting anti-aging property is also more excellent, and have carrying energy Power is strong, at low cost, and the transmission of data-signal can be effectively ensured in the advantage of service life length.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

In figure: 1, electric conductor；2, central tube；3, insulation fill stratum；4, inner sheath；5, elastic skeleton structure；501, rubber Bullet block；502, drawing piece；6, external conductor layer；601, thin copper wire；7, external shielding layer；8, oversheath；9, flame-retardant pull tension rope.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Referring to Fig. 1, the utility model provides a kind of technical solution:

A kind of anti-drawing coaxial cable having elastic force, comprising: electric conductor 1, insulation fill stratum 3, inner sheath 4, outside are led Body layer 6, external shielding layer 7, oversheath 8, the electric conductor 1, insulation fill stratum 3, inner sheath 4, external conductor layer 6, external shielding layer 7, oversheath 8 is arranged successively from the inside to the outside；The electric conductor 1 includes central tube 2 and control conductor, and the control conductor setting exists In central tube 2, the control conductor is twisted into copper wire bundle by multiply tinned copper wire, then is twisted again by seven groups of copper wire bundles, in this way Manufactured control conductor has preferable flexibility, in favor of the mobile cable anti-torsion used, bending, prevents conductor by stress Fatigue fracture；Gap between the central tube 2 and inner sheath 4 is set as insulation fill stratum 3；It is set in the insulation fill stratum 3 It is equipped with rubber bullet block 501 and drawing piece 502, passes through drawing piece 502 between the two panels rubber bullet block 501 and is fixed into elastic skeleton Structure 5,5 periphery of elastic skeleton structure and the gap between central tube 2 and inner sheath 4 are filled by flame-retardant elastomer, Further increase the elastic force and flame retardant property of cable；4 periphery of inner sheath is extruded with external conductor layer 6, the external conductor Layer 6 is arranged closely in 4 periphery of inner sheath using thin copper wire 601 is longitudinal, in the wrapped one layer of compound copper-plastics band of outer layer, such surface phase To relatively flat, convex-concave degree is relatively small, and uniformly, can effectively disperse to reduce pressure and concentrate, impression also will be effective Mitigate, it is smaller to the damage of insulating layer, the performance of insulation is had substantially no effect on, while increasing anti-torsion and the bending of cable significantly Performance；6 periphery of external conductor layer is provided with external shielding layer 7, and the external shielding layer 7 is that high-intensitive galvanized copper wire is mutually worked out It links and reticulates structure；7 periphery of external shielding layer is extruded with oversheath 8.

Further, the cross section of the rubber bullet block 501 is ellipse, the long axis both ends difference of the rubber bullet block 501 It leans with central tube 2 and inner sheath 4, plays support rebound effect.

Further, the drawing piece 502 is stainless steel strip.

Further, the flame-retardant pull tension rope 9 extended longitudinally along the cable is provided in the oversheath 8, it is described fire-retardant anti- Drawstring 9 is provided with 4, and 4 flame-retardant pull tension ropes 9 are separately positioned on four corresponding positions up and down of cable.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of anti-drawing coaxial cable for having elastic force characterized by comprising electric conductor, insulation fill stratum, inner sheath, External conductor layer, external shielding layer, oversheath, the electric conductor, insulation fill stratum, inner sheath, external conductor layer, external shielding layer, Oversheath is arranged successively from the inside to the outside；The electric conductor includes central tube and control conductor, and the control conductor is centrally disposed In pipe, the control conductor is twisted into copper wire bundle by multiply tinned copper wire, then is twisted again by seven groups of copper wire bundles；The central tube Gap between inner sheath is set as insulation fill stratum；It is provided with rubber bullet block and drawing piece in the insulation fill stratum, two Elastic skeleton structure is fixed by drawing piece between rubber bullet block described in piece, the elastic skeleton structure peripheral and central tube and It is filled by flame-retardant elastomer in gap between inner sheath；The inner sheath periphery is extruded with external conductor layer, the outside Conductor layer is longitudinally arranged closely in inner sheath periphery using thin copper wire, in the wrapped one layer of compound copper-plastics band of outer layer；It leads the outside Body layer periphery is provided with external shielding layer, and the external shielding layer mutually is worked out to link for high-intensitive galvanized copper wire reticulates structure；Institute It states external shielding layer periphery and is extruded with oversheath.

2. a kind of anti-drawing coaxial cable for having elastic force according to claim 1, it is characterised in that: the rubber bullet block Cross section be ellipse, the long axis both ends of the rubber bullet block lean with central tube and inner sheath respectively.

3. a kind of anti-drawing coaxial cable for having elastic force according to claim 1, it is characterised in that: the drawing piece is Stainless steel strip.

4. a kind of anti-drawing coaxial cable for having elastic force according to claim 1, it is characterised in that: in the oversheath It is provided with the flame-retardant pull tension rope extended longitudinally along the cable.

5. a kind of anti-drawing coaxial cable for having elastic force according to claim 4, it is characterised in that: the flame-retardant pull tension Rope is provided with 4, and 4 flame-retardant pull tension ropes are separately positioned on four corresponding positions up and down of cable.