CN217544216U - Steel wire reinforced multi-core control cable - Google Patents

Abstract

The utility model provides a steel wire strenghthened type multicore control cable, including a plurality of metal shielded control cable transposition formation cable core main part jointly, the cable core main part outside has wrapped up glass fiber in proper order around band layer, steel wire enhancement layer and outer protective layer, and glass fiber is packed with the cotton rope between band layer and the cable core main part; the metal shielding control cable comprises two insulation control cables which are mutually twisted and an inner protection layer wrapped outside the insulation control cables, the insulation control cables comprise two insulation conductive wire cores which are mutually twisted to form a cable core body, the outer portion of the cable core body is sequentially wrapped with a glass fiber wrapping tape layer and a metal shielding layer, and each insulation conductive wire core comprises an inner conductor and an insulation layer wrapped outside the inner conductor. The utility model relates to a steel wire strenghthened type multicore control cable possesses security characteristic such as environmental protection, temperature resistant, waterproof, resistant oily, anti scraping and grinding, resistant cutting, and accords with the application demand to the multicore many pairs of cable in each trade of high-speed development.

Description

Steel wire reinforced multi-core control cable

Technical Field

The utility model relates to the technical field of cables, concretely relates to steel wire strenghthened type multicore control cable.

Background

Along with the acceleration of subway construction in China, the electrified control system for subway construction is more and more emphasized by industry experts as the electrical connection safety of the central nerve of the subway, and aiming at the subway data communication and control system, the potential safety hazard defects such as false alarm and the like caused by the scattered wiring of a single team and the electromagnetic influence of heavy current passing of subway vehicles often appear, so that the multi-core multi-pair control cable matching with the characteristic requirements of high safety such as tensile strength, water resistance, oil resistance, temperature resistance, scratch and abrasion resistance needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a steel wire strenghthened type multicore control cable possesses security characteristic such as environmental protection, temperature resistant, waterproof, resistant oily, anti scraping and grinding, resistant cutting, accords with the application demand to the cable in each trade of high-speed development.

The technical scheme of the utility model is realized like this:

a steel wire reinforced multi-core control cable comprises a cable core main body formed by co-twisting a plurality of metal shielding control cables, wherein a first glass fiber wrapping band layer, a steel wire reinforcing layer and an outer protective layer are sequentially wrapped outside the cable core main body, and a cotton rope is filled between the first glass fiber wrapping band layer and the cable core main body; the metal shielding control cable comprises two insulation control cables which are mutually twisted and an inner protection layer wrapped outside the insulation control cables, the insulation control cables comprise two insulation conductive wire cores which are mutually twisted to form a cable core body, a second glass fiber winding belting layer and a metal shielding layer are sequentially wrapped outside the cable core body, and the insulation conductive wire cores comprise inner conductors and insulation layers wrapped outside the inner conductors.

Preferably, the inner conductor is formed by hinging a plurality of tinned copper strands, and the diameter of each tinned copper wire is 0.02mm to 0.05mm.

Preferably, the insulating layer is a crosslinked polyolefin insulating layer.

Preferably, the plastic structure of the insulating layer is a net structure.

Preferably, the first glass fiber wrapping tape layer is of a double-layer lapping structure.

Preferably, the second glass fiber wrapping tape layer is of an overlapping lapping structure.

Preferably, the metal shielding layer is a metal braided net structure.

Preferably, the outer protective layer and the inner protective layer are both made of cross-linked polyolefin materials.

Compared with the prior art, the utility model has the advantages of it is following: the utility model relates to a steel wire strenghthened type multicore control cable, the inside and outside protective layer and the high strength temperature resistant glass fiber band layer of crosslinked polyolefin material have been adopted respectively, control cable's wear-resisting has been increased, resistant oil, the temperature resistant, cold-resistant, waterproof and flexibility can, the cotton rope of packing can increase control cable's heat-proof quality, and can alleviate the pressure that control cable bore, control cable's stretch-proofing through the steel wire enhancement layer has fully been strengthened, the effect of shock resistance, metal-woven's shielding layer can effectual shielding outside electromagnetic interference, still can be according to the actual wiring requirement, realize many logarithms control cable combination, possess the environmental protection, the temperature resistant, waterproof, resistant oily, anti scraping, safety characteristic such as resistant cutting, and accord with the application demand to the cable in each trade of high-speed development now, but wide application in various large-scale water conservancy construction, high-speed railway construction, metallurgy, nuclear power, trades such as electric wire netting supporting control.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of a cross-sectional structure of the steel wire reinforced multi-core control cable of the present invention;

fig. 2 is the utility model discloses metal shielding control cable's among steel wire strenghthened type multicore control cable section structure sketch map.

The attached drawings are as follows: the cable comprises 1-a metal shielding control cable, 101-an insulating control cable, 102-an insulating conductive wire core, 103-an inner conductor, 2-a cotton rope, 3-a first glass fiber winding band layer, 4-a steel wire reinforcing layer, 5-an outer protective layer, 6-an inner protective layer, 7-a second glass fiber winding band layer, 8-a metal shielding layer and 9-an insulating layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 2, the embodiment of the utility model discloses a steel wire strenghthened type multicore control cable, including the cable core main part that 1 common transposition of a plurality of metal shielded control cable formed, as shown in fig. 1, cable core main part outside parcel in proper order has first glass fibre to wind band layer 3, steel wire enhancement layer 4 and outer protective layer 5, and first glass fibre is packed to have cotton rope 2 around having between band layer 3 and the cable core main part.

Wherein, the cotton rope 2 as filling material can guarantee the rounding of cable, avoids cable surface twist shape to appear when crowded package outer protective layer 5, increases the drag resistance and the tensile resistance of cable.

Further, the cable core main part is tightened around band layer 3 through first glass fibre, and first glass fibre is taken the lid around the package structure for the bilayer around band layer 3, and first glass fibre has high temperature resistant, heat preservation thermal-insulated, the fire prevention fire-retardant characteristic around band layer 3, and first glass fibre is around the steel wire enhancement layer 4 that band layer 3 was woven through the steel wire outward, can fully strengthen cable's tensile resistance and impact resistance. The outer protective layer 5 which is wrapped outside the steel wire reinforced layer 4 and is made of cross-linked polyolefin materials has the functions of temperature resistance, flame retardance, scratch and abrasion resistance and cutting resistance.

As shown in fig. 2, the metal-shielded control cable 1 includes two insulation control cables 101 twisted with each other and an inner protection layer 6 wrapped outside the insulation control cable 101, the insulation control cable 101 includes two insulation conductive cores 102 twisted with each other to form a cable core, a second glass fiber wrapping tape layer 7 and a metal shielding layer 8 are sequentially wrapped outside the cable core, and the insulation conductive core 102 includes an inner conductor 103 and an insulation layer 9 wrapped outside the inner conductor 103.

Preferably, the inner conductor 103 is formed by twisting a plurality of tinned copper strands, and the diameter of each tinned copper wire is 0.02mm to 0.05mm.

Wherein, inner protective layer 6 is the crosslinked polyolefin material, has temperature resistant, fire-retardant, anti scraping and grinding, resistant effect of cutting equally, and the fine winding band layer 7 of second of the external parcel of cable core is for overlapping to take the lid around the package structure, and the fine winding band layer 7 of second has high temperature resistant, heat preservation thermal-insulated, the fire-retardant characteristic of preventing fires. The metal shielding layer 8 is a metal-woven net structure, and can sufficiently shield external electromagnetic interference. The insulating layer 9 is made of cross-linked polyolefin, the plastic structure of the insulating layer is changed into a net structure, new chemical bonds are established among macromolecules, and the mechanical property is obviously improved, so that the insulating layer 9 has higher environmental stress cracking resistance, corrosion resistance, oil resistance, heat resistance and insulativity.

To sum up, the utility model discloses:

a single inner conductor 103 and an insulating layer 9 wrapped outside the inner conductor 103 form a single insulated conductive wire core 102, and the two insulated conductive wire cores 102 are mutually twisted to form a single insulated control cable 101; the single insulated control cable 101 is tightly wound by a second glass fiber winding tape layer 7; the metal shielding layer 8 wraps the second glass fiber wrapping tape layer 7 to form a cable core body, and meanwhile, the metal shielding layer 8 plays a role in shielding external electromagnetic interference; the two insulated control cables 101 are twisted with each other and wrapped in the inner protective layer 6 to form a single metal shielding control cable 1; according to the requirement of comprehensive control wiring of a subway line, multiple pairs of twisting are carried out on a single metal shielding control cable 1 to form a cable core main body, and a first high-strength temperature-resistant glass fiber winding band layer 3 is adopted outside the cable core main body for double-layer overlapping, wrapping and fastening; a cotton rope 2 is filled between the cable core main body and the first glass fiber winding belting layer 3, so that the roundness of the cable can be ensured, and the drag resistance and the tensile resistance of the cable are improved; the steel wire reinforcing layer 4 is wrapped outside the first glass fiber wrapping band layer 3, so that the tensile property and the impact resistance of the cable are enhanced; and finally, an outer protection layer 5 made of cross-linked polyolefin is used for wrapping the steel wire reinforcing layer 4, so that the characteristics of temperature resistance, flame retardance, scratch and abrasion resistance, cutting resistance and the like are improved.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A steel wire reinforced multi-core control cable is characterized by comprising a cable core main body formed by jointly twisting a plurality of metal shielding control cables (1), wherein a first glass fiber winding band layer (3), a steel wire reinforcing layer (4) and an outer protection layer (5) are sequentially wrapped outside the cable core main body, and a cotton rope (2) is filled between the first glass fiber winding band layer (3) and the cable core main body; the metal shielding control cable (1) comprises two insulation control cables (101) which are mutually twisted and an inner protection layer (6) wrapped outside the insulation control cables (101), wherein each insulation control cable (101) comprises two insulation conductive wire cores (102) which are mutually twisted to form a cable core body, a second glass fiber winding belting layer (7) and a metal shielding layer (8) are sequentially wrapped outside the cable core body, and each insulation conductive wire core (102) comprises an inner conductor (103) and an insulation layer (9) wrapped outside the inner conductor (103).

2. The wire-reinforced multicore control cable of claim 1, wherein the inner conductor (103) is formed of a plurality of tinned copper strands, the tinned copper wires having a diameter of 0.02mm to 0.05mm.

3. The wire reinforced multicore control cable of claim 1, wherein the insulating layer (9) is a crosslinked polyolefin insulating layer.

4. A wire reinforced multicore control cable according to claim 3, wherein the plastic structure of the insulating layer (9) is a mesh structure.

5. The steel wire reinforced multi-core control cable according to claim 1, wherein the first glass fiber wrapping tape layer (3) is a double-layer lap-covering wrapping structure.

6. The steel wire reinforced multicore control cable of claim 1, wherein the second glass fiber wrapped tape layer (7) is an overlapping lap-cover wrapped structure.

7. The wire reinforced multicore control cable of claim 1, wherein the metal shielding layer (8) is a metal braided mesh structure.

8. The steel wire reinforced multicore control cable of claim 1, wherein the outer protective layer (5) and the inner protective layer (6) are both cross-linked polyolefin materials.

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