CN219979193U

CN219979193U - Armored composite cable

Info

Publication number: CN219979193U
Application number: CN202321336421.2U
Authority: CN
Inventors: 杨勇; 竺汝栋; 尹华海
Original assignee: HANGZHOU HUIER CABLE CO LTD
Current assignee: HANGZHOU HUIER CABLE CO LTD
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-11-07
Anticipated expiration: 2033-05-30

Abstract

The utility model relates to an armored composite cable, which belongs to the technical field of cables and comprises a filling layer, a wire core, a buffer layer, an armor layer and a protective layer, wherein the filling layer is arranged on the wire core; the buffer layer is arranged on the filling layer, a plurality of support plates are arranged in the buffer layer, and support columns are arranged between adjacent support plates; the armor sets up on the buffer layer, and the inoxidizing coating sets up on the armor. When the cable receives outside extrusion load, pressure is transmitted to the inoxidizing coating earlier, the inoxidizing coating transmits to the armor again on, the armor extrudes the backup pad in the buffer layer for the backup pad produces deformation, buffer layer and support column provide the support for the backup pad simultaneously, and prevent the backup pad from caving in, and the buffer layer is including the filling layer protection, the filling layer is including the sinle silk cladding again, the prevention sinle silk rocks, the combined action reduces the influence of external pressure to the sinle silk, effectively improve the cable and easily produce the problem of deformation and influence the conveying performance of cable under the extrusion effect of pressure.

Description

Armored composite cable

Technical Field

The utility model relates to the field of cable technology, in particular to an armored composite cable.

Background

The armoured cable is made up by using conductors made of different materials and placing them in metal sleeve with insulating material, and can be made into a flexible solid combination body, and possesses the characteristics of high mechanical strength and strong corrosion-resisting capability, etc..

When the armored cable is laid, a deeper tunnel is usually dug on the ground, the cable is laid in the tunnel, and then the tunnel is backfilled, so that the cable is protected in the tunnel; however, due to the fact that the tunnels are deeper, after long-term rainwater and geological effects, the pressure applied by soil to the armored cable can be gradually increased, and although the metal sleeve is sleeved outside the armored cable, the strength of the cable can be enhanced, the cable is easy to deform under the extrusion effect of the pressure under the long-term extrusion effect, and accordingly the conveying performance of the cable is affected.

Disclosure of Invention

The utility model provides an armored composite cable, which aims to solve the problem that the cable is easy to deform under the extrusion action of pressure so as to influence the conveying performance of the cable.

The utility model provides an armored composite cable which adopts the following technical scheme:

the armored composite cable comprises a filling layer, a wire core, a buffer layer, an armor layer and a protective layer, wherein the filling layer is arranged on the wire core; the buffer layer is arranged on the filling layer, a plurality of support plates are arranged in the buffer layer, and support columns for providing support for the support plates are arranged between adjacent support plates; the armor is arranged on the buffer layer, and the protective layer is arranged on the armor.

Through adopting above-mentioned technical scheme, when the cable receives outside extrusion load, pressure is transmitted to the inoxidizing coating earlier, on the inoxidizing coating is transmitted to the armor again, the armor extrudees the backup pad in the buffer layer for the backup pad produces deformation, buffer layer and support column provide the support for the backup pad simultaneously, and prevent the backup pad from caving, and the buffer layer is including the filling layer protection, the filling layer is including the sinle silk cladding again, the prevention sinle silk rocks, the combined action reduces the influence of external pressure to the sinle silk, effectively improves the cable and produces deformation and influence the problem of the conveying performance of cable under the extrusion effect of pressure.

Optionally, the support plates are all obliquely arranged in the buffer layer, but the oblique directions of the adjacent support plates are reversely arranged, and the adjacent support plates are connected.

Through adopting above-mentioned technical scheme, adjacent backup pad supports each other, when receiving external pressure, effectively improves the backup pad to external pressure's bearing capacity.

Optionally, the support columns are slidably disposed between adjacent support plates.

Through adopting above-mentioned technical scheme, when the backup pad receives the extrusion, adjacent backup pad is close to each other or keeps away from, backup pad extrusion support column between the adjacent backup pad for the support column slides between adjacent backup pad, but the support column still with adjacent backup pad butt all the time, and then realize that the support column provides the support for the backup pad, can reduce the influence that the support column produced deformation to the backup pad again.

Optionally, the wire core includes an optical cable core and a plurality of cable cores, and the optical cable core and the plurality of cable cores are all disposed in the filling layer.

Through adopting above-mentioned technical scheme, through the installation of optical cable core and cable core for but the simultaneous transmission optical signal of cable and electrical signal promote the suitability of cable to different signal transmission demands.

Optionally, a metal reinforcing core is arranged between the optical cable core and the plurality of cable cores.

By adopting the technical scheme, the metal reinforcing core enhances the cable shearing resistance, and enables the cable to recover deformation after being deformed due to the shearing force, thereby effectively enhancing the structural strength and the capacity of recovering deformation of the cable.

Optionally, a shielding layer is disposed between the filling layer and the buffer layer.

By adopting the technical scheme, the shielding layer shields the external magnetic field signals outside, so that the influence of the external magnetic field on the optical cable core and the cable core is reduced; meanwhile, the shielding layer shields the magnetic field generated when the cable core transmits the electric signal, so that the influence of the magnetic field in the cable on the elements around the cable is reduced.

Optionally, the shielding layer is copper strips, and the shielding layer is cross-woven on the peripheral wall of the filling layer.

Through adopting above-mentioned technical scheme, through alternately weaving the copper strips on the periphery wall of filling layer, when shielding magnetic field interference, can further increase the structural strength of cable again.

Optionally, the armor is a steel strip, and the armor is spirally wound on the peripheral wall of the buffer layer.

Through adopting above-mentioned technical scheme, armor spiral winding is on the periphery wall of buffer layer, provides the protection to the buffer layer, improves the buffer layer and receives the ability of shearing, and then effectively strengthens the structural strength of cable.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the supporting plate is an armor layer for improving the supporting, so that the capability of the cable for resisting external pressure is improved, and the problem that the cable is easy to deform under the extrusion action of the pressure to influence the conveying performance of the cable is effectively solved;

2. the optical cable core and the cable core promote the applicability of the cable to different signal transmission requirements;

3. the shielding layer shields the magnetic field inside the cable, so that the influence of the external magnetic field on the optical cable core and the cable core is reduced, and the influence of the magnetic field inside the cable on elements around the cable is reduced.

Drawings

Fig. 1 is a schematic cross-sectional view of an armored composite cable according to an embodiment of the present utility model.

Reference numerals: 1. a filling layer; 2. a wire core; 21. an optical cable core; 22. a cable core; 3. a buffer layer; 4. an armor layer; 5. a protective layer; 6. a support plate; 7. a support column; 8. a metal reinforcing core; 9. and a shielding layer.

Detailed Description

The present utility model will be described in further detail with reference to fig. 1.

The embodiment of the utility model discloses an armored composite cable.

Referring to fig. 1, the armored composite cable includes a filler layer 1, a core 2, a buffer layer 3, an armor layer 4, an armor layer 5, and a shield layer 9.

Referring to fig. 1, a wire core 2 includes an optical cable core 21 and a plurality of cable cores 22, a filling layer 1 is coated on the optical cable core 21 and the cable cores 22, in this embodiment, two cable cores 22 are installed in the filling layer 1, and the optical cable core 21 and the two cable cores 22 are installed in the filling layer 1 at intervals with the center of a circle of the filling layer 1 as a base point, so that when a cable is pressed, the optical cable core 21 and the two cable cores 22 are stressed uniformly, and simultaneously, by installing the optical cable core 21 and the cable cores 22, the cable can transmit optical signals and electrical signals at the same time, thereby improving the applicability of the cable to different signal transmission requirements; the filling layer 1 can be a polypropylene mesh belt, a low-smoke halogen-free flame-retardant rope, a glass fiber rope and the like, and in the embodiment, the filling layer 1 is a glass fiber rope, and has the characteristics of good insulation, strong heat resistance, good corrosion resistance, high mechanical strength and the like, the filling layer 1 wraps the optical cable core 21 and the cable core 22, shaking of the optical cable core 21 and the cable core 22 in the filling layer 1 is effectively reduced, and stability of the optical cable core 21 and the cable core 22 is improved.

Referring to fig. 1, a metal reinforcing core 8 is installed between an optical cable core 21 and two cable cores 22, the metal reinforcing core 8 is simultaneously abutted against the optical cable core 21 and the two cable cores 22, the metal reinforcing core 8 can be made of steel, aluminum or other materials, and in the embodiment, the metal reinforcing core 8 is made of steel, and has the characteristics of high strength, good tensile strength and the like; the metal reinforcing core 8 effectively enhances the shearing resistance and tensile resistance of the cable, and enables the cable to recover deformation after being deformed due to shearing force, thereby effectively enhancing the structural strength and the deformation recovery capability of the cable.

Referring to fig. 1, a shielding layer 9 is covered on the outer peripheral wall of a filling layer 1, the shielding layer 9 is copper strips, and the copper strips are wound on the outer peripheral wall of the filling layer 1 in a cross-knitting mode; the shielding layer 9 enhances the capability of the cable to be subjected to longitudinal tensile force, so that the structural strength of the cable is effectively enhanced, meanwhile, the shielding layer 9 shields external magnetic field signals outside, the influence of external magnetic fields on the optical cable core 21 and the cable core 22 is reduced, the magnetic field generated when the cable core 22 transmits electric signals is shielded inside, and the influence of the magnetic field inside the cable on elements around the cable is reduced; in other embodiments, the shielding layer 9 may be tin-plated copper wire, steel wire, or the like.

Referring to fig. 1, the buffer layer 3 is mounted on the outer peripheral wall of the shielding layer 9, the buffer layer 3 may be made of semi-conductive non-woven fabric, semi-conductive fluffy cotton, etc., in this embodiment, the buffer layer 3 is made of semi-conductive non-woven fabric, and the semi-conductive non-woven fabric is coated with water-blocking powder, which has the characteristics of longitudinal water blocking, mechanical buffering, insulating shielding, etc., so as to effectively reduce the influence of the cable on the inner optical cable core 21 and the cable core 22 when being extruded, and play a role in blocking water on the inner optical cable core 21 and the cable core 22;

a plurality of support plates 6 are obliquely arranged in the buffer layer 3, two ends of each support plate 6 are respectively abutted against the shielding layer 9 and the armor layer 4, but the oblique directions of the adjacent support plates 6 are reversely arranged, and the end parts of the adjacent support plates 6 are mutually connected; support columns 7 for providing support for the support plates 6 are slidably mounted between the adjacent support plates 6; the supporting plate 6 and the supporting column 7 can be made of copper, steel and the like, and in the embodiment, the supporting plate 6 and the supporting column 7 are made of steel and have the characteristics of high strength, strong tensile and shearing resistance, good toughness and the like; when the supporting plates 6 are extruded, the buffer layer 3 provides support for the supporting plates 6, and meanwhile, the adjacent supporting plates 6 are mutually supported, so that the bearing capacity of the supporting plates 6 is effectively improved; when the supporting plates 6 deform under the action of pressure, the adjacent supporting plates 6 are mutually close to or far away from each other, the supporting plates 6 squeeze the supporting columns 7 between the adjacent supporting plates 6, so that the supporting columns 7 adaptively slide between the adjacent supporting plates 6, but the supporting columns 7 are kept in butt joint with the adjacent supporting plates 6, the supporting columns 7 provide support for the supporting plates 6, the influence of the supporting columns 7 on deformation of the supporting plates 6 can be reduced, and the situation that the supporting plates 6 are fatigued and collapse due to long-term pressing is improved.

Referring to fig. 1, the armor layer 4 is installed on the outer peripheral wall of the buffer layer 3, the armor layer 4 is a steel belt, the steel belt is coated on the outer peripheral wall of the buffer layer 3 in a spiral winding manner, and in other embodiments, the armor layer 4 may be made of steel wires, aluminum tubes, aluminum belts, or the like; when the cable receives the extrusion, armor 4 provides the protection for the inner structure of cable, improves the ability that cable inner structure pressurized was cut, and then effectively strengthens the structural strength of cable.

Referring to fig. 1, the protective layer 5 is mounted on the armor layer 4, and the protective layer 5 may be made of polyvinyl chloride, polyethylene, or poly perfluoroethylene propylene, and in this embodiment, the protective layer 5 is made of polyvinyl chloride and is attached to the outer peripheral wall of the armor layer 4 by a melting manner, so that the protective layer has the characteristics of corrosion resistance, flame retardance, water resistance, and the like; the protective layer 5 protects the armor layer 4, prevents the armor layer 4 from being affected by corrosion, rain erosion and the like, and prevents rain from invading the armor layer 4 to cause corrosion of the armor layer 4.

The implementation principle of the armored composite cable provided by the embodiment of the utility model is as follows: when the cable receives external load extrusion, pressure passes through armor 5 to be transmitted on the armor 4, armor 4 is including cable inner structure protection, simultaneously pressure is transmitted again to on buffer layer 3, backup pad 6 is pressed and is taken place the deformation, buffer layer 3 provides the support for backup pad 6, promote backup pad 6's bearing capacity, backup pad 6 extrusion support column 7 makes support column 7 adaptability slip on backup pad 6 again, make support column 7 adapt to backup pad 6 deformation and provide the support to backup pad 6, buffer layer 3 is including shielding layer 9 and filling layer 1 protection again simultaneously, filling layer 1 is with the hole packing between cable core 21 and the cable core 22, reduce the rocking of cable core 21 and cable core 22, the combined action, reduce the influence that external pressure produced cable inside cable core 21 and cable core 22, effectively improve the cable and easily produce the problem of deformation and influence the conveying performance of cable under the extrusion effect of pressure.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. An armored composite cable, characterized in that: the cable comprises a filling layer (1), a cable core (2), a buffer layer (3), an armor layer (4) and a protective layer (5), wherein the filling layer (1) is arranged on the cable core (2); the buffer layer (3) is arranged on the filling layer (1), a plurality of support plates (6) are arranged in the buffer layer (3), and support columns (7) for providing support for the support plates (6) are arranged between adjacent support plates (6); the armor (4) is arranged on the buffer layer (3), and the protective layer (5) is arranged on the armor (4).

2. An armored composite cable according to claim 1, wherein: the supporting plates (6) are obliquely arranged in the buffer layer (3), but the oblique directions of the adjacent supporting plates (6) are reversely arranged, and the adjacent supporting plates (6) are connected.

3. An armored composite cable according to claim 2, wherein: the support columns (7) are arranged between the adjacent support plates (6) in a sliding manner.

4. An armored composite cable according to claim 1, wherein: the cable core (2) comprises an optical cable core (21) and a plurality of cable cores (22), and the optical cable core (21) and the plurality of cable cores (22) are arranged in the filling layer (1).

5. An armored composite cable according to claim 4, wherein: a metal reinforcing core (8) is arranged between the optical cable core (21) and the plurality of cable cores (22).

6. An armored composite cable according to claim 1, wherein: a shielding layer (9) is arranged between the filling layer (1) and the buffer layer (3).

7. An armored composite cable according to claim 6, wherein: the shielding layer (9) is copper strips, and the shielding layer (9) is crossly woven on the peripheral wall of the filling layer (1).

8. An armored composite cable according to claim 1, wherein: the armor (4) is a steel belt, and the armor (4) is spirally wound on the peripheral wall of the buffer layer (3).