CN217822154U

CN217822154U - High-strength insulated cable

Info

Publication number: CN217822154U
Application number: CN202221500158.1U
Authority: CN
Inventors: 吴蕴杰
Original assignee: Jinhua Zhengtong Cable Co ltd
Current assignee: Jinhua Zhengtong Cable Co ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2022-11-15
Anticipated expiration: 2032-06-14

Abstract

The utility model discloses an insulated cable of high strength, this insulated cable aim at solving prior art lower wire rope setting in the center department of cable, and the outside intensity of cable is relatively poor, and easy fracture when the cable is bent, and the cable can not cushion external force, causes the conductor to damage easily when receiving the impact, influences the normal use of cable to the cable surface is easy to wear and tear, influences the technical problem of the pleasing to the eye degree of cable. The insulated cable comprises an inner insulating sheath, a support frame arranged on the inner wall of the inner insulating sheath, a cable core fixed in a space formed by the inner insulating sheath and the support frame, and a filler arranged in a gap between the support frame and the cable core. This insulated cable utilizes support frame, armor and steel wire, improves the holistic intensity of insulated cable, and difficult fracture when insulated cable bends improves insulated cable's life, can cushion power, reduces the impact force to cable core, reduces insulated cable surface's wear rate.

Description

High-strength insulated cable

Technical Field

The utility model belongs to the technical field of insulated cable, concretely relates to insulated cable of high strength.

Background

The insulated cable can prevent the electric conductor from contacting with the outside, thereby avoiding the cable from generating the conditions of electric leakage, short circuit and the like, the application range of the insulated wire is very wide, most of the wires used in our family are insulated wires, and a plurality of large-scale building engineering, electrical equipment, electric power engineering and the like use insulated wires.

At present, the utility model patent of patent number CN 201921497323.0 discloses a high strength insulated cable, including cable core and fag end, be provided with the rock wool filling layer between cable core and the fag end, and the inner chamber of fag end has cup jointed wire rope, the outside of cable core is provided with the butyronitrile rubber layer, and the outside on butyronitrile rubber layer is connected with the epoxy layer through urea-formaldehyde resin glue, and simultaneously, the surface on epoxy layer is connected with the fluorocarbon rubber layer through urea-formaldehyde resin glue. The steel wire rope is sleeved in the inner cavity of the rope sleeve, so that the overall strength of the cable can be improved, but the steel wire rope of the insulated cable is arranged at the center of the cable, the strength of the outer portion of the cable is poor, the cable is easy to break when being bent, the cable cannot buffer external force, the conductor is easily damaged when being impacted, the normal use of the cable is influenced, the surface of the cable is easy to wear, and the attractiveness of the cable is influenced.

Therefore, in order to solve the above problems of poor external strength and easy damage of the conductor, it is necessary to improve the use scenario of the insulated cable.

SUMMERY OF THE UTILITY MODEL

(1) Technical problem to be solved

An object of the present invention is to provide an insulated cable of high strength, this insulated cable aims at solving prior art lower wire rope and sets up in the center department of cable, and the outside intensity of cable is relatively poor, and easy fracture when the cable is bent, and the cable can not cushion external force, causes the conductor to damage easily when receiving the impact, influences the normal use of cable to cable surface easy wear, influences the technical problem of the pleasing to the eye degree of cable.

(2) Technical scheme

In order to solve the technical problem, the utility model provides a high-strength insulated cable, which comprises an inner insulating sheath, a support frame arranged on the inner wall of the inner insulating sheath, a cable core fixed in the space formed by the inner insulating sheath and the support frame, and a filler arranged in the gap between the support frame and the cable core; the outer side of the inner insulating sheath is fixedly connected with a waterproof layer, a first reinforcing layer, an elastic buffer layer, an intermediate insulating sheath, an armor layer, a second reinforcing layer and an outer insulating sheath in sequence, through holes distributed in an annular equal distance are formed in the outer insulating sheath, steel wires are fixedly connected in the through holes, and wear-resistant protrusions distributed in an annular equal distance are fixedly connected to the outer side of the outer insulating sheath.

When using this technical scheme's insulated cable, put into interior insulation sheath with the carriage, then put into cable core, and put into the filler in the space of carriage and cable core, at last in proper order in the fixed waterproof layer in the interior insulation sheath outside, first enhancement layer, the elastic buffer layer, middle insulation sheath, the armor, second enhancement layer and outer insulation sheath, then set up the through-hole on outer insulation sheath, toward through-hole internal fixation steel wire, at last in the wear-resisting arch of the fixed ring equidistance distribution in the outer insulation sheath outside, the cable is when using, can improve outer insulation sheath's wearability through wear-resisting arch, intensity through armor and steel wire reinforced cable.

Preferably, the cable core includes the conductor, the cladding is in insulating shrink cover, the cladding in the conductor outside the conductor is in the conductor and another the shield cover in the conductor outside, 2 are no less than to the quantity of conductor, and the conductor is twisted each other. Through setting up insulating shrink cover, ensure the insulating nature between each conductor, avoid appearing the condition such as electric leakage, short circuit, improve insulated cable's security.

Preferably, the support frame is made of plastic, the support frame is of a radial structure, and the number of edges of the support frame corresponds to the number of the cable cores one to one. The internal insulation sheath is supported by the support frame, so that the strength of the center of the insulation cable is improved.

Preferably, the filler is any one or more of PP rope, hemp rope, glass fiber rope, inorganic paper rope and fan-shaped filling strip. Through the design of filler, fix the position of cable core, avoid cable core to rock at will in the internal insulation sheath.

Preferably, the first reinforcing layer and the second reinforcing layer are made of glass fiber mesh cloth, and the armor layer is made of any one of a galvanized steel strip, a non-magnetic stainless steel strip, a galvanized steel wire, an aluminum strip, an aluminum alloy strip or an aluminum wire. Through the design of first enhancement layer, second enhancement layer and armor, further strengthen insulated cable's intensity, avoid insulated cable's fracture, improve insulated cable's life.

Preferably, the cross-section of the elastic buffer layer is of a wave-shaped structure, and the elastic buffer layer is made of a TPE thermoplastic elastomer. Play the effect of buffering through elastic buffer layer, cushion power when receiving external force to reduce the impact force to cable core, guarantee cable core's integrality.

Preferably, the surface of the outer insulating sheath is provided with a fireproof coating, and the inner insulating sheath, the middle insulating sheath and the outer insulating sheath are made of polyvinyl chloride. Through setting up fire protection coating, improve the fire behavior of outer insulating sheath, strengthen the security.

(3) Advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses an insulated cable utilizes support frame, armor and steel wire, strengthen insulated cable's inside and outside simultaneously, improve the holistic intensity of insulated cable, be difficult to the fracture when insulated cable bends, improve insulated cable's life, and through setting up the elastic buffer layer, can cushion the power when receiving external force, reduce the impact force to the cable core, do not influence insulated cable's normal use, and through setting up wear-resisting arch, reduce the wear rate on insulated cable surface, improve insulated cable's pleasing to the eye degree.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the insulated cable of the present invention;

fig. 2 is a schematic front structural view of an embodiment of the insulated cable of the present invention;

fig. 3 is the utility model discloses the equipment schematic diagram of cable core among an embodiment of insulated cable.

The labels in the figures are: 1. an inner insulating sheath; 2. a support frame; 3. a cable core; 31. a conductor; 32. insulating shrink sleeves; 33. a shielding sleeve; 4. a filler; 5. a waterproof layer; 6. a first reinforcing layer; 7. an elastic buffer layer; 8. an intermediate insulating sheath; 9. an armor layer; 10. a second reinforcing layer; 11. an outer insulating sheath; 12. a through hole; 13. a steel wire; 14. wear-resisting protruding.

Detailed Description

Example 1

The specific embodiment is a high-strength insulated cable, the schematic perspective structure of which is shown in fig. 1, and the schematic front structure of which is shown in fig. 2, the insulated cable comprises an inner insulating sheath 1, a support frame 2 arranged on the inner wall of the inner insulating sheath 1, a cable core 3 fixed in a space formed by the inner insulating sheath 1 and the support frame 2, and a filler 4 arranged in a gap between the support frame 2 and the cable core 3; 1 outside fixedly connected with waterproof layer 5, first enhancement layer 6, elastic buffer layer 7, middle insulating protective cover 8, armor 9, second enhancement layer 10 and outer insulating protective cover 11 in proper order in the inner insulating protective cover, set up the through-hole 12 that annular equidistance distributes on the outer insulating protective cover 11, fixedly connected with steel wire 13 in the through-

hole

12, 11 outside fixedly connected with annular equidistance of outer insulating protective cover distribute wear-resisting arch 14.

Wherein, cable core 3 includes conductor 31, cladding insulating shrink cover 32 in the conductor 31 outside, cladding at the shielding cover 33 in conductor 31 and another conductor 31 outside, and 2 are no less than to the quantity of conductor 31, and the mutual transposition of conductor 31, and the material of support frame 2 is plastics, and support frame 2 is radial structure, and the quantity one-to-one of the limit number of support frame 2 and cable core 3.

Meanwhile, the filler 4 is any one or more of a PP rope, a hemp rope, a glass fiber rope, an inorganic paper rope and a fan-shaped filler strip, the first reinforcing layer 6 and the second reinforcing layer 10 are made of glass fiber mesh cloth, and the armor layer 9 is made of any one of a galvanized steel strip, a non-magnetic stainless steel strip, a galvanized steel wire, an aluminum strip, an aluminum alloy strip or an aluminum wire.

In addition, the cross-section of the elastic buffer layer 7 is of a wave-shaped structure, the elastic buffer layer 7 is made of TPE thermoplastic elastomer, the surface of the outer insulating sheath 11 is provided with a fireproof coating, and the inner insulating sheath 1, the middle insulating sheath 8 and the outer insulating sheath 11 are made of polyvinyl chloride.

The assembly of the cable core 3 of the insulated cable is schematically shown in fig. 3.

When the insulated cable of the technical scheme is used, the insulating shrinkage sleeve 32 is coated on the outer side of the conductor 31, then the plurality of conductors 31 are twisted, then the outer side of the twisted conductor 31 is coated with the shielding sleeve 33 to obtain a cable core 3, the support frame 2 is placed in the inner insulating sheath 1, then the cable core 3 is placed, the filler 4 is placed in a gap between the support frame 2 and the cable core 3, finally the waterproof layer 5, the first reinforcing layer 6, the elastic buffer layer 7, the middle insulating sheath 8, the armor layer 9, the second reinforcing layer 10 and the outer insulating sheath 11 are fixed on the outer side of the inner insulating sheath 1 in sequence, the through hole 12 is formed in the outer insulating sheath 11, the steel wire 13 is fixed in the through hole 12, and finally the wear-resistant protrusions 14 distributed at equal intervals are fixed on the outer side of the outer insulating sheath 11, when the cable is used, the wear resistance of the outer insulating sheath 11 can be improved through the wear-resistant protrusions 14, and the strength of the cable is enhanced through the armor layer 9 and the steel wire 13.

Claims

1. A high-strength insulated cable comprises an inner insulating sheath, a support frame arranged on the inner wall of the inner insulating sheath, a cable core fixed in a space formed by the inner insulating sheath and the support frame, and a filler arranged in a gap between the support frame and the cable core; the novel anti-abrasion steel wire cable is characterized in that the waterproof layer, the first reinforcing layer, the elastic buffer layer, the middle insulating sheath, the armor layer, the second reinforcing layer and the outer insulating sheath are fixedly connected to the outer side of the inner insulating sheath in sequence, through holes distributed in an annular equal distance are formed in the outer insulating sheath, steel wires are fixedly connected to the through holes, and abrasion-resistant protrusions distributed in an annular equal distance are fixedly connected to the outer side of the outer insulating sheath.

2. The insulated cable of claim 1, wherein the cable core comprises a conductor, an insulation shrink sleeve covering the conductor, and a shielding sleeve covering the conductor and the other conductor, the number of the conductors is not less than 2, and the conductors are twisted with each other.

3. The insulated cable of claim 1, wherein the support is made of plastic and has a radial structure, and the number of edges of the support corresponds to the number of the cable cores.

4. A high strength insulated cable according to claim 1, wherein the filler is any one or more of PP cords, hemp cords, glass fiber cords, inorganic paper cords, and fan-shaped filler strips.

5. The insulated cable of claim 1, wherein the first and second reinforcement layers are made of fiberglass mesh cloth, and the armor layer is made of any one of galvanized steel tape, non-magnetic stainless steel tape, galvanized steel wire, aluminum tape, aluminum alloy tape or aluminum wire.

6. The insulated cable of claim 1, wherein the cross-section of the elastic buffer layer is a wave-shaped structure, and the elastic buffer layer is made of TPE thermoplastic elastomer.

7. The insulated cable of claim 1, wherein the outer insulating sheath has a fire-retardant coating on the surface thereof, and the inner insulating sheath, the middle insulating sheath and the outer insulating sheath are made of polyvinyl chloride.