CN212256987U

CN212256987U - Stretch-proofing low smoke flame retarded cable

Info

Publication number: CN212256987U
Application number: CN202021334949.2U
Authority: CN
Inventors: 赵玉所; 余宗仁
Original assignee: Anhui Rainbow Are Cable Group Co ltd
Current assignee: Anhui Rainbow Are Cable Group Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-12-29
Anticipated expiration: 2030-07-09

Abstract

The utility model relates to the technical field of cables, a stretch-proofing low smoke flame retarded cable is disclosed, including the cable core, be equipped with a core in the cable core, four protection pieces of fixedly connected with of even equidistance on the annular lateral wall of axle core, common centre gripping has a sinle silk between two arbitrary adjacent protection pieces, and the outside of cable core is connected with the stretch-proofing layer, and even equidistance's distribution has a plurality of roots to strengthen the core on the annular lateral wall of stretch-proofing layer, and the outside cover on stretch-proofing layer is equipped with the armor, strengthens the inboard of core setting at the armor. The utility model provides the high stretch-proofing effect of whole root cable takes place deformation production electric leakage or snap when preventing that the cable is tensile, has improved the security.

Description

Stretch-proofing low smoke flame retarded cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a stretch-proofing low cigarette flame retarded cable.

Background

The cable is composed of a cable core consisting of a conductor and an insulating layer, a shielding layer, an inner sheath, an armor layer, an outer sheath and the like, and has excellent electrical performance, physical and mechanical performance and chemical stability, so that the cable is widely applied and is suitable for large-scale coal mining machine equipment. In these occasions, due to the characteristics of the working environment, most cables are subjected to frequent bending, gangue and coal block punching and smashing, various mechanical scraping and extrusion and even artificial damage.

The prior patent (publication) No. CN108511117A discloses a low-smoke flame-retardant cable which has compact structure, fire resistance, flame retardance, good heat insulation effect, good insulation effect, safety, environmental protection, bending resistance and wear resistance; the scheme still has the following technical defects:

the cable is poor in stretch-proof effect, the phenomenon that the conductor is stretched and deformed easily when the cable is pulled is caused, the electric leakage condition is generated, or the cable is directly pulled to be broken, and the danger hidden danger is caused to personnel.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art that the stretch-proofing effect of cable is poor, takes place the phenomenon of conductor tensile deformation easily when acting as go-between, produces the condition of electric leakage, perhaps directly breaks, causes the problem of dangerous hidden danger to the personnel, and the stretch-proofing low smoke flame retarded cable that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a stretch-proofing low smoke flame retarded cable, includes the cable core, be equipped with a core in the cable core, four protection pieces of fixedly connected with of even equidistance on the annular lateral wall of axle core, arbitrary adjacent two common centre gripping has a sinle silk between the protection piece, the outside of cable core is connected with the stretch-proofing layer, the core is strengthened to a plurality of roots to even equidistance's distribution on the annular lateral wall on the stretch-proofing layer, the outside cover on stretch-proofing layer is equipped with the armor, strengthen the inboard that the core setting is at the armor.

Preferably, the stretch-proofing layer comprises a Kevlar wire, and the Kevlar wire is wound and wrapped on the annular outer side wall of the cable core in a clockwise direction by taking the cable core as a center.

Preferably, the armor layer is formed by weaving copper wire strips in a combined mode.

Preferably, fire-resistant mica tapes are clockwise wrapped on the outer side of the armor layer, and a flame-retardant sleeve is sleeved on the outer side of each fire-resistant mica tape.

Preferably, a low-smoke halogen-free flame-retardant organic mineral rope is filled between the armor layer and the fire-resistant mica tape.

Preferably, the cable core comprises a conductor, an insulating layer arranged outside the conductor, a heat insulating layer arranged outside the insulating layer, a shielding layer arranged outside the heat insulating layer and an inner sheath arranged outside the shielding layer, wherein the insulating layer is a ceramic silicon rubber insulating layer.

Compared with the prior art, the utility model provides a stretch-proofing low cigarette flame retarded cable possesses following beneficial effect:

this stretch-proofing low smoke flame retarded cable, through setting up the cable core, the axle core, the protection piece, the sinle silk, the stretch-proofing layer, strengthen core and armor, use the axle core as the supporter, four protection pieces are the annular distribution on the axle core, a sinle silk is protected to per two protection pieces, the rethread kaifu acts as go-between and becomes the stretch-proofing layer around the package, and cooperation evenly distributed's enhancement core, the stretch-proofing effect of whole root cable has been improved, the effect of protection cable core is not only started on the dress layer of while, can also shield the interference of external electromagnetism to the cable core, take place deformation production electric leakage or breaking when preventing that the cable is tensile, and the safety is improved.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model provides high whole root cable's stretch-proofing effect takes place deformation production electric leakage or snap when preventing that the cable is tensile, has improved the security.

Drawings

Fig. 1 is a schematic structural view of a stretch-resistant low-smoke flame-retardant cable according to the present invention;

fig. 2 is the utility model provides a cable core and the drawing of tensile layer connection part of stretch-proofing low smoke flame retarded cable.

In the figure: 1 cable core, 2 axle cores, 3 protection pieces, 4 sinle silks, 5 stretch-proofing layers, 6 reinforced cores, 7 armor layers, 8 fire-resistant mica tapes, 9 flame-retardant covers, 10 low smoke zero halogen flame retardant organic mineral ropes.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a stretch-resistant low-smoke flame-retardant cable comprises a cable core 1, a shaft core 2 is arranged in the cable core 1, four protection blocks 3 are fixedly connected to the annular side wall of the shaft core 2 at equal intervals, a wire core 4 is clamped between any two adjacent protection blocks 3, a stretch-resistant layer 5 is connected to the outer side of the cable core 1, a plurality of reinforcing cores 6 are uniformly distributed on the annular outer side wall of the stretch-resistant layer 5 at equal intervals, an armor layer 7 is sleeved on the outer side of the stretch-resistant layer 5, the reinforcing cores 6 are arranged on the inner side of the armor layer 7, the shaft core 2 is used as a support, the four protection blocks 3 are annularly distributed on the shaft core 2, one wire core 4 is protected by every two protection blocks 3, the stretch-resistant layer 5 is formed by Kevlar wire wrapping, the uniform distribution of the reinforcing cores 6 is matched, the stretch-resistant effect of the whole cable is improved, and the Kevlar layer 7 not only starts, the interference of external electromagnetism to the cable core 1 can be shielded, the cable is prevented from being deformed to generate electric leakage or breaking when being stretched, and the safety is improved.

Preferably, the stretch-proofing layer 5 comprises a kevlar pull wire, and the kevlar pull wire is wound and wrapped on the annular outer side wall of the cable core 1 in a clockwise direction by taking the cable core 1 as a center.

Preferably, the armor layer 7 is formed by weaving copper wire strips in a combined mode.

Preferably, the fire-resistant mica tape 8 is clockwise lapped on the outer side of the armor layer 7, and the flame-retardant sleeve 9 is sleeved on the outer side of the fire-resistant mica tape 8.

Preferably, the low-smoke halogen-free flame-retardant organic mineral rope 10 is filled between the armor layer 7 and the fire-resistant mica tape 8.

The cable core 1 comprises a conductor, an insulating layer arranged outside the conductor, a heat insulating layer arranged outside the insulating layer, a shielding layer arranged outside the heat insulating layer and an inner sheath arranged outside the shielding layer, wherein the insulating layer is a ceramic silicon rubber insulating layer.

The utility model discloses in, use axle core 2 as the support, four protection pieces 3 are the annular distribution on axle core 2, 3 protection sinle silk 4 of per two protection pieces, the rethread kaifu acts as go-between is around packing into stretch-proofing layer 5, and cooperation evenly distributed's enhancement core 6, the stretch-proofing effect of whole root cable has been improved, the effect of protection cable core is not only started to kaifu taiji layer 7 simultaneously, can also shield the interference of external electromagnetism to cable core 1, take place deformation production electric leakage or break when preventing that the cable is tensile, and the security is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a stretch-proofing low smoke flame retarded cable, includes cable core (1), its characterized in that, be equipped with axle core (2) in cable core (1), four protection piece (3) of evenly equidistant fixedly connected with on the annular lateral wall of axle core (2), arbitrary adjacent two it has a sinle silk (4) to press from both sides jointly between protection piece (3), the outside of cable core (1) is connected with stretch-proofing layer (5), evenly equidistant distribution has a plurality of enhancement cores (6) on the annular lateral wall of stretch-proofing layer (5), the outside cover of stretch-proofing layer (5) is equipped with armor (7), it sets up the inboard at armor (7) to strengthen core (6).

2. The stretch-resistant low-smoke flame-retardant cable according to claim 1, wherein the stretch-resistant layer (5) comprises a Kevlar wire, and the Kevlar wire is wound around the annular outer side wall of the cable core (1) in a clockwise direction with the cable core (1) as a center.

3. A stretch-resistant, low-smoke, flame-retardant cable according to claim 1, characterized in that said armor layer (7) is formed by weaving copper tapes in combination.

4. The stretch-resistant low-smoke flame-retardant cable is characterized in that a fire-resistant mica tape (8) is wound clockwise on the outer side of the armor layer (7), and a flame-retardant sleeve (9) is sleeved on the outer side of the fire-resistant mica tape (8).

5. The stretch-resistant low-smoke flame-retardant cable according to claim 4, wherein a low-smoke halogen-free flame-retardant organic mineral rope (10) is filled between the armor layer (7) and the fire-resistant mica tape (8).

6. An anti-tensile low-smoke flame-retardant cable according to claim 1, wherein the cable core (1) comprises a conductor, an insulating layer arranged outside the conductor, a heat insulating layer arranged outside the insulating layer, a shielding layer arranged outside the heat insulating layer and an inner sheath arranged outside the shielding layer, wherein the insulating layer is a ceramic silicon rubber insulating layer.