CN213904988U

CN213904988U - Stretch-proofing type light current cable

Info

Publication number: CN213904988U
Application number: CN202022980492.9U
Authority: CN
Inventors: 朱凯
Original assignee: Jiangsu Dihua Cable Co ltd
Current assignee: Jiangsu Dihua Cable Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-08-06
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a stretch-proofing type light current cable relates to cable technical field, including the steel wire, the outer wall fixedly connected with wearing layer of steel wire, the first inner sheath of outer wall fixedly connected with of wearing layer, the outer wall fixedly connected with filling layer of first inner sheath, fixedly connected with kaivy stay cord on one side of the inside of filling layer, the inside opposite side fixedly connected with conductor of filling layer, the outer wall fixedly connected with insulating layer of conductor. This stretch-proofing type light current cable, through the steel wire, the wearing layer, the cooperation setting of filling layer and kaivy stay cord, when making light current cable receive external force tensile, the pliability is stronger, can bear the tensile and friction of high strength, thereby effectual solved current light current cable unwrapping wire in actual operation or when receiving the line, the cable will receive ground friction and obstruct even, thereby make the cable frequently receive friction and high strength pulling force and twist reverse at work, shorten its life's problem.

Description

Stretch-proofing type light current cable

Technical Field

The utility model relates to a cable technical field specifically is a stretch-proofing type light current cable.

Background

The weak current cable is used for security communication, electrical equipment and related weak current transmission purposes.

In chinese utility model patent application no: the utility model discloses a stretch-proofing type light current cable is disclosed in CN201922421738.6, this stretch-proofing type light current cable, including the conductor, the outside crowded package of conductor has the insulating layer, the insulating layer outside is equipped with the weaving layer, the outside crowded package of weaving layer has the inner sheath, the conductor, the insulating layer, weaving layer and inner sheath constitute the sinle silk unit, the sinle silk unit is equipped with two at least, sinle silk unit outside is equipped with the filling layer, the inside penetration of filling layer is equipped with a plurality of enhancement steel cores, the filling layer outside constitutes armor first around the covering galvanized steel strip, the armor first outside is equipped with fire prevention mud. This stretch-proofing type light current cable, when unwrapping wire or receipts line in actual operation, the cable will receive ground friction or even obstruct to make the cable frequently receive friction and high strength pulling force and twist reverse in work, shorten its life, because of receiving the stress effect of frequent bending, tensile, lead to the sinle silk condition of breaking easily at the cable operation in-process.

Therefore, it is necessary to provide a tensile-resistant type weak current cable to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a stretch-proofing type light current cable to solve the unwrapping wire or when receiving the line of current light current cable that proposes in the above-mentioned background art in the actual operation, the cable will receive ground friction and obstruct even, thereby makes the cable frequently receive friction and high strength pulling force and twist reverse at work, shortens its life, because of receiving frequent bending, tensile stress effect at the cable operation in-process, leads to the problem of sinle silk emergence fracture condition easily.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an anti-tensile type weak current cable comprises a steel wire, wherein the outer wall of the steel wire is fixedly connected with a wear-resistant layer, the outer wall of the wear-resistant layer is fixedly connected with a first inner sheath, the outer wall of the first inner sheath is fixedly connected with a filling layer, one side inside the filling layer is fixedly connected with a Kevlar rope, the other side inside the filling layer is fixedly connected with a conductor, the outer wall of the conductor is fixedly connected with an insulating layer, the outer wall of the insulating layer is fixedly connected with a heat insulating layer, the outer wall of the heat insulation layer is fixedly connected with an oxygen insulation layer, the outer wall of the filling layer is fixedly connected with a second inner sheath, the outer wall of the second inner sheath is fixedly connected with a woven layer, the outer wall of the woven layer is fixedly connected with an elastic buffer layer, the outer wall fixedly connected with shielding layer of elastic buffer layer, the outer wall fixedly connected with flame retardant coating of shielding layer, the outer wall fixedly connected with oversheath of flame retardant coating.

Preferably, the steel wire is positioned at the axial center of the filling layer.

Preferably, the conductors and the Kevlar cords are multiple, and the conductors and the Kevlar cords are distributed on one side of the inner part of the filling layer in an annular array.

Preferably, the filling layer is made of glass fiber yarns.

Preferably, the braided layer is mainly composed of three basic structural elements of fiber, metal and steel wire.

Preferably, the material of the elastic buffer layer is polyethylene foam.

Preferably, the first inner sheath, the second inner sheath and the outer sheath are made of thermosetting halogen-free low-smoke flame-retardant polyolefin sheath materials.

(III) advantageous effects

Compared with the prior art, the utility model provides a stretch-proofing type light current cable possesses following beneficial effect:

1. this stretch-proofing type light current cable, through the steel wire, the wearing layer, the cooperation setting of filling layer and kaivy stay cord, when making light current cable receive external force tensile, the pliability is stronger, can bear the tensile and friction of high strength, thereby effectual solved current light current cable unwrapping wire in actual operation or when receiving the line, the cable will receive ground friction and obstruct even, thereby make the cable frequently receive friction and high strength pulling force and twist reverse at work, shorten its life's problem.

2. This stretch-proofing type light current cable through setting up weaving layer and elastic buffer layer, makes light current cable when receiving external force effect emergence bending or tensile, and the weaving layer can in time kick-back, makes light current cable can avoid the damage under elastic buffer layer's effect to effectual solution leads to the problem of sinle silk breaking occur's the condition easily because of receiving frequent bending, tensile stress effect at the cable operation in-process.

Drawings

Fig. 1 is a schematic perspective view of the structure of the stretch-resistant weak current cable of the present invention;

fig. 2 is a schematic front view of the structure of the stretch-resistant weak current cable of the present invention;

FIG. 3 is an enlarged schematic view of the steel wire structure of the present invention;

fig. 4 is an enlarged schematic view of the conductor structure of the present invention.

In the figure: 1. a steel wire; 2. a wear layer; 3. a first inner sheath; 4. a filling layer; 5. a Kevlar cord; 6. a conductor; 7. an insulating layer; 8. a thermal insulation layer; 9. an oxygen barrier layer; 10. a second inner sheath; 11. weaving layer; 12. an elastic buffer layer; 13. a shielding layer; 14. a fire barrier layer; 15. an outer sheath.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 work belong to the protection scope of the present invention.

Referring to fig. 1-4, an anti-stretching weak current cable includes a steel wire 1, a wear-resistant layer 2 is fixedly connected to an outer wall of the steel wire 1, a first inner sheath 3 is fixedly connected to an outer wall of the wear-resistant layer 2, a filling layer 4 is fixedly connected to an outer wall of the first inner sheath 3, the steel wire 1 is located at an axis of the filling layer 4, the steel wire 1 is arranged at the axis of the filling layer 4, so that the steel wire 1 can better share a tensile force when the cable is stretched by an external force, the service life of the cable is prolonged, a kevlar pull rope 5 is fixedly connected to one side inside the filling layer 4, the weak current cable has stronger flexibility when being stretched by the external force and can bear high-strength stretching and friction by the cooperation of the steel wire 1, the wear-resistant layer 2, the filling layer 4 and the kevlar pull rope 5, thereby effectively solving the problem that the existing weak current cable is paid off or taken up in an actual operation, the cable will receive ground friction or even hinder, thus make the cable frequently receive friction and high strength pulling force and twist reverse in the work, problem to shorten its life, the inside other side of the packed bed 4 fixedly connects with the conductor 6, there are a plurality of conductors 6 and Kevlar ropes 5, a plurality of conductors 6 and Kevlar ropes 5 are distributed in the inside one side of the packed bed 4 in the form of annular array, the packed bed 4 is formed by glass fiber yarn, the outer wall of the conductor 6 is fixedly connected with the insulating layer 7, the outer wall of the insulating layer 7 is fixedly connected with the insulating layer 8, the outer wall of the insulating layer 8 is fixedly connected with the oxygen barrier layer 9, the outer wall of the packed bed 4 is fixedly connected with the second inner sheath 10, the outer wall of the second inner sheath 10 is fixedly connected with the braided layer 11, the braided layer 11 is mainly made up of three basic structural elements of fibre, metal, steel wire, the outer wall of the braided layer 11 is fixedly connected with the elastic buffer layer 12, the elastic buffer layer 12 is made of polyethylene foam plastic, the polyethylene foam plastic is stable according to chemical properties, is not easy to corrode and has good mechanical properties, toughness, flexibility and friction resistance, and can effectively protect the cable from being damaged, the braided layer 11 can rebound in time when the weak-current cable is bent or stretched under the action of external force by arranging the braided layer 11 and the elastic buffer layer 12, and the weak-current cable can be prevented from being damaged under the action of the elastic buffer layer 12, so that the problem that the cable core is easy to break due to frequent bending and stretching stress action in the cable running process is effectively solved, the shielding layer 13 is fixedly connected to the outer wall of the elastic buffer layer 12, the fireproof layer 14 is fixedly connected to the outer wall of the shielding layer 13, and the outer sheath 15 is fixedly connected to the outer wall of the fireproof layer 14, the first inner sheath 3, the second inner sheath 10 and the outer sheath 15 are made of thermosetting halogen-free low-smoke flame-retardant polyolefin sheath materials.

The working principle is as follows: through setting up the steel wire 1, make the cable bear the tensile force of external force, the steel wire 1 can better share the pulling force, through setting up wearing layer 2 and first inner sheath 3 in the outer wall of the steel wire 1, make the steel wire 1 bear the tensile force and can reduce the damage to the cable, increase the service life of the cable, make the cable receive the external force under the influence of external force through setting up the packed bed 4, will not rub between conductor 6 and the steel wire 1, and can increase the stretch-proofing ability, through setting up the kaifu guy rope 5 on one side of the packed bed 4, make the stretch-proofing ability of the packed bed 4 improve greatly, through setting up insulating layer 7, insulating layer 8 and oxygen barrier layer 9 in the outer wall of the conductor 6, and the first inner sheath 3, the second inner sheath 10, oversheath 15 and the cooperation setting of the flame retardant coating 14, make the conductor 6 can avoid the accident that the cable caused by external factor to catch fire when using, through setting up braid 11 and elastic buffer layer 12, make the light current cable when receiving external force effect and taking place crooked or tensile, weaving layer 11 can in time kick-back, make the light current cable can avoid the damage under the effect of elastic buffer layer 12 to effectual solution leads to the problem of the cracked condition of sinle silk emergence because of receiving frequent bending, tensile stress effect at the cable operation in-process, through setting up shielding layer 13, can increase cable signal transmission's stability easily.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a stretch-proofing type light current cable, includes steel wire (1), its characterized in that: the outer wall of the steel wire (1) is fixedly connected with a wear-resistant layer (2), the outer wall of the wear-resistant layer (2) is fixedly connected with a first inner sheath (3), the outer wall of the first inner sheath (3) is fixedly connected with a filling layer (4), one side inside the filling layer (4) is fixedly connected with a Kevlar rope (5), the other side inside the filling layer (4) is fixedly connected with a conductor (6), the outer wall of the conductor (6) is fixedly connected with an insulating layer (7), the outer wall of the insulating layer (7) is fixedly connected with a heat-insulating layer (8), the outer wall of the heat-insulating layer (8) is fixedly connected with an oxygen-isolating layer (9), the outer wall of the filling layer (4) is fixedly connected with a second inner sheath (10), the outer wall of the second inner sheath (10) is fixedly connected with a woven layer (11), and the outer wall of the woven layer (11) is fixedly connected with an elastic buffer layer (12), the outer wall fixedly connected with shielding layer (13) of elasticity buffer layer (12), the outer wall fixedly connected with flame retardant coating (14) of shielding layer (13), the outer wall fixedly connected with oversheath (15) of flame retardant coating (14).

2. The stretch-resistant weak current cable according to claim 1, wherein: the steel wire (1) is positioned at the axle center of the filling layer (4).

3. The stretch-resistant weak current cable according to claim 1, wherein: the conductors (6) and the Kevlar ropes (5) are multiple, and the conductors (6) and the Kevlar ropes (5) are distributed on one side of the inner part of the filling layer (4) in an annular array mode.

4. The stretch-resistant weak current cable according to claim 1, wherein: the filling layer (4) is made of glass fiber yarns.

5. The stretch-resistant weak current cable according to claim 1, wherein: the braided layer (11) mainly comprises three basic structural elements of fiber, metal and steel wire.

6. The stretch-resistant weak current cable according to claim 1, wherein: the elastic buffer layer (12) is made of polyethylene foam plastic.

7. The stretch-resistant weak current cable according to claim 1, wherein: the first inner sheath (3), the second inner sheath (10) and the outer sheath (15) are made of thermosetting halogen-free low-smoke flame-retardant polyolefin sheath materials.