CN216596992U - Flexible cable for butyronitrile compound insulation and sheath movement - Google Patents

Abstract

The utility model discloses a butyronitrile compound flexible cable for insulation and sheath movement, which comprises a cable core and a protective core, wherein the protective core is equidistantly arranged on the outer wall of the cable core; the outer layer of the wrapping layer is provided with a shielding layer and a comprehensive outer sheath which are coaxially and sequentially extruded; a pressure-resistant groove is arranged in the protective core in a penetrating way, and an anchorage core for resisting external pressure is arranged in the pressure-resistant groove; the anti-torsion filling core is sleeved outside the insulating wire core at the center of the cable core. The utility model is improved aiming at the problems that the prior art does not have torsional and compressive resistance, the service life is reduced, and the like, and has the advantages of torsional and compressive resistance, reduction in cable maintenance frequency, improvement in service life, reduction in maintenance cost, and the like.

Description

Flexible cable for butyronitrile compound insulation and sheath movement

Technical Field

The utility model relates to the technical field of flexible cables, in particular to a flexible cable for butyronitrile compound insulation and sheath movement.

Background

At present, the flexible cable on the market is various, they are applied to various different occasions, but the flexible cable among the prior art still has some not enough, in the laying or use of flexible cable, receive lateral pressure and torsional force very easily, when receiving the extrusion of these external forces, often can cause the damage to flexible cable inner structure or even cable core, also make the conductor structure tend to loose or turn round tightly easily, can produce the influence to whole flexible cable after frequently receiving external force extrusion, make it can not work for a long time, greatly reduced life, need constantly maintain more new, make cost increase, reduce efficiency, there is certain limitation during the use.

Aiming at the technical problems, the utility model discloses a butyronitrile compound flexible cable for insulation and sheath movement, which has the advantages of torsion and compression resistance, reduction in the maintenance frequency of the cable, improvement of the service life, reduction in the maintenance cost and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a flexible cable for butyronitrile compound insulation and sheath movement, which solves the problems that the prior art does not have torsion and compression resistant effects, the flexible cable cannot work for a long time, the service life of the flexible cable is shortened, and the like. The utility model has the advantages of torsion and compression resistance, reduced maintenance frequency of the cable, prolonged service life, reduced maintenance cost and the like.

The utility model is realized by the following technical scheme: the utility model discloses a butyronitrile compound flexible cable for insulation and sheath movement, which comprises a cable core and a protective core, wherein the protective core is equidistantly arranged on the outer wall of the cable core; the outer layer of the wrapping layer is provided with a shielding layer and a comprehensive outer sheath which are coaxially and sequentially extruded; a pressure-resistant groove is arranged in the protective core in a penetrating way, and an anchorage core for resisting external pressure is arranged in the pressure-resistant groove; the anti-torsion filling core is sleeved outside the insulation wire core at the center of the cable core and consists of an inner ring and an anti-torsion ring arranged on the outer wall of the inner ring, a hollow groove is formed between the inner ring and the anti-torsion ring, and the outer wall of the anti-torsion ring is provided with an anti-torsion arc surface corresponding to the positions of six insulation wire cores on the outer side; the comprehensive outer sheath comprises a fiber mesh wrapping layer, an inner sheath layer, a flame-retardant sleeve and a butyronitrile compound sheath which are coaxially and sequentially extruded outside the shielding layer.

Furthermore, in order to increase the compactness of the internal combination of the cable, the connecting surface of the protective core is tightly attached to the cable core and the wrapping layer respectively, and the protective core and the anti-torsion filling core are made of elastomer materials.

Furthermore, for the effect that possesses the whole weight of reduction cable in the time of the resistance to compression, the anchorage core is established at the inside central point of resistance to compression inslot and is put, and protection core and anchorage core integrated structure.

Furthermore, in order to enable the six insulated wire cores arranged outside the central insulated wire to have a stable anti-twisting effect, the inner ring and the anti-twisting ring are integrally formed.

Furthermore, in order to enable the outer protective layer to have a good anti-tearing effect, the fiber net wrapping layer is a polyester fiber protective net.

Furthermore, in order to enable the sheath to have the advantages of crack resistance, long service life, water resistance and the like, the inner sheath layer and the butyronitrile composite sheath are made of butyronitrile composite material.

Furthermore, in order to enable the cable to have a strong flame-retardant effect, the flame-retardant sleeve is made of a flame-retardant soft polyvinyl chloride material.

The utility model has the following advantages:

(1) according to the utility model, the outer layer of the cable core is coated with the protective core, the connecting surface of the protective core is tightly attached to the cable core and the wrapping layer respectively, the compactness of the internal combination of the cable is increased, the anchorage core in the protective core is arranged at the central position in the pressure-resistant groove, and the protective core and the anchorage core are of an integrated structure, the anchorage core can provide pressure resistance for the protective core, so that the protective core is not easy to deform when the surface of the protective core is opposite to pressure, meanwhile, the integrated structure is more stable, a small cavity is reserved between the anchorage core and the pressure-resistant groove, and the whole weight of the cable is reduced while the cable is subjected to pressure resistance;

(2) according to the utility model, the anti-twisting filling core which is sleeved outside the central insulating wire core is arranged in the cable, so that a certain resilience can be provided when external torsion force is received, and the central insulating wire and the six insulating wire cores wound outside the central insulating wire core have better anti-twisting effect and higher flexibility as a whole;

(3) according to the utility model, the comprehensive outer sheath is arranged outside the cable core and comprises a polyester fiber net wrapping layer with a tearing-resistant effect, a flame-retardant soft polyvinyl chloride flame-retardant sleeve with a fireproof effect, a butyronitrile compound sheath made of waterproof and long-life butyronitrile compound and an inner sleeve layer, so that the overall strength of the cable is increased, and the compression resistance of the flexible cable is improved;

(4) the anti-torsion filling core and the anti-torsion protection core are matched with each other and can bear force, the internal structure is optimized, the internal cable core is more standard to be installed, the compressive strength of the cable is increased, the anti-torsion and anti-compression effects are achieved, the maintenance frequency of the cable is reduced, the service life is prolonged, the cost required by maintenance is reduced, the practicability is improved, and the use limitation is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic view of the protective core structure of the present invention;

FIG. 3 is a schematic view of the construction of the anti-twist core according to the present invention;

fig. 4 is a schematic structural diagram of the comprehensive outer sheath of the present invention.

In the figure: 1. a cable core; 2. an insulating layer; 3. a conductor; 4. an anti-twist infill core; 401. a hollow groove; 402. an anti-torsion arc surface; 5. a protective core; 6. wrapping a covering; 7. a shielding layer; 8. a comprehensive outer sheath; 801. a web wrap layer; 802. an inner jacket layer; 803. a flame-retardant sleeve; 804. a butyronitrile composite sheath.

Detailed Description

In the description of the present invention, words similar to "front", "rear", "left", "right", etc. indicating directions or positional relationships are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.

The utility model provides a technical scheme that: a butyronitrile compound insulation and sheath move and use the flexible cable, as shown in fig. 1 to 4, including cable core 1, also include the protection core 5 locating the outer wall of cable core 1 equidistantly, the cable core 1 is made up of seven insulated wire cores, every insulated wire core is made up of conductor 3 and insulating layer 2 coated outside conductor 3, the conductor 3 adopts the stranded flexible conductor, locate at the insulating wire core of the axle center of cable core 1 and its six insulated wire cores that the outside winds and is wrapped up and packed the antitorque filler 4, the protection core 5 is wrapped up and set up in wrapping 6, cable core 1 by extrusion; the outer layer of the wrapping layer 6 is provided with a shielding layer 7 and a comprehensive outer sheath 8 which are coaxially and sequentially extruded; a pressure-resistant groove is arranged in the protective core 5 in a penetrating way, and a supporting and resisting core for resisting external pressure is arranged in the pressure-resistant groove; the anti-torsion filling core 4 is sleeved outside the insulated wire core in the center of the cable core 1, the anti-torsion filling core 4 consists of an inner ring and an anti-torsion ring arranged on the outer wall of the inner ring, a hollow groove 401 is formed between the inner ring and the anti-torsion ring, and the outer wall of the anti-torsion ring is provided with an anti-torsion arc surface 402 corresponding to the positions of six insulated wire cores on the outer side; the comprehensive outer sheath 8 comprises a fiber mesh wrapping layer 801, an inner sheath layer 802, a flame-retardant sheath 803 and a butyronitrile composite sheath 804 which are coaxially and sequentially extruded outside the shielding layer 7.

As shown in figure 1, the connecting surface of the protective core 5 is tightly attached to the cable core 1 and the wrapping layer 6 respectively, the protective core 5 and the anti-torsion filling core 4 are made of elastomer materials, and the compactness of the internal combination of the cable is increased due to the tight attachment.

As shown in fig. 1 and 2, the anchorage core is arranged in the center of the compression resistant groove, the protection core 5 and the anchorage core are integrated, the anchorage core can provide compressive resistance for the protection core 5, the protection core 5 is not easy to deform, the integrated structure is more stable, a small cavity is reserved between the anchorage core and the compression resistant groove, and the compression resistant groove has the effect of reducing the overall weight of the cable.

As shown in fig. 1 and 3, the inner ring and the torsion resistant ring are integrally formed, and the two are combined to ensure that six insulated wire cores arranged outside the central insulated wire have stable torsion resistant effect.

As shown in fig. 1 and 4, the fiber net wrapping layer 801 is a polyester fiber protecting net, which can provide better tearing resistance effect for the outer protective layer.

As shown in fig. 1 and 4, the inner jacket layer 802 and the butyronitrile composite sheath 804 are both made of butyronitrile composite material, and the butyronitrile composite material has the advantages of crack resistance, long service life, water resistance and the like.

As shown in fig. 1 and 4, the flame retardant jacket 803 is made of flame retardant flexible polyvinyl chloride material, and has a strong flame retardant effect.

The principle of the utility model is as follows: the protection core 5 and the anti-torsion filling core 4 can limit the insulated wire core of the cable core 1 to the cambered surfaces of the protection core and the anti-torsion filling core, when the cable core 1 is subjected to side pressure, the protection core 5 and the anti-torsion filling core 4 can play a role in buffering and supporting, the deformation of the cable is reduced, the cable core 1 is protected, and when the side pressure disappears, the cable is beneficial to recovering the original shape; when the cable is subjected to torsional force, the protective core 5 and the anti-torsion filling core 4 can generate certain friction force with the adjacent cable core 1 or the external sheath, so that the twisting degree of the cable is reduced, and when the torsional force disappears, the cable is favorable for restoring the original shape, so that the flexibility and the resilience of the cable are improved; locate the outside comprehensive oversheath 8 of cable core 1 including the polyester fiber net wrapping layer 801 of anti tear effect, the fire-retardant soft polyvinyl chloride who possesses the fire prevention effect cover 803, the butyronitrile compound sheath 804, the endotheca 802 that waterproof long-life butyronitrile compound material was made, increase the bulk strength of cable, reduce the maintenance frequency to the cable, promoted the practicality.

Claims (7)

1. The flexible cable for butyronitrile compound insulation and sheath movement is characterized by comprising a cable core and a protective core which is equidistantly arranged on the outer wall of the cable core, wherein the cable core consists of seven insulating wire cores, each insulating wire core consists of a conductor and an insulating layer which is coated outside the conductor, the conductor adopts a plurality of strands of flexible conductors, an anti-torsion filling core is extruded between the insulating wire core positioned at the axis of the cable core and six insulating wire cores wound outside the insulating wire core, and the protective core is extruded and arranged between a wrapping layer and the cable core; the outer layer of the wrapping layer is provided with a shielding layer and a comprehensive outer sheath which are coaxially and sequentially extruded; a pressure-resistant groove is arranged in the protective core in a penetrating manner, and an anchorage core for resisting external pressure is arranged in the pressure-resistant groove; the anti-torsion filling core is sleeved outside the insulation wire core in the center of the cable core and consists of an inner ring and an anti-torsion ring arranged on the outer wall of the inner ring, a hollow groove is formed between the inner ring and the anti-torsion ring, and the outer wall of the anti-torsion ring is provided with an anti-torsion arc surface corresponding to the positions of six insulation wire cores on the outer side; the comprehensive outer sheath comprises a fiber mesh wrapping layer, an inner sheath layer, a flame-retardant sleeve and a butyronitrile compound sheath which are coaxially and sequentially extruded outside the shielding layer.

2. The butyronitrile compound insulation and sheath movement flexible cable as claimed in claim 1, wherein the protective core connecting surface is closely attached to the cable core and the wrapping layer, respectively, and the protective core and the anti-torsion filling core are both made of elastomer materials.

3. The butyronitrile compound insulation and sheath movement flexible cable as claimed in claim 1, wherein the anchorage core is disposed at a central position inside the pressure-resistant groove, and the protection core and the anchorage core are of an integrated structure.

4. A flexible cable for nitrile compound insulation and sheath movement as defined in claim 1, wherein said inner ring and said torsion ring are integrally formed.

5. A flexible nitrile-butadiene composite insulation and sheath movement cable as recited in claim 1, wherein said fiber mesh wrapping layer is a polyester fiber protective mesh.

6. The flexible cable for nitrile compound insulation and sheath movement of claim 1, wherein the inner jacket layer and the nitrile compound sheath are made of nitrile compound.

7. A flexible cable for nitrile compound insulation and sheath movement as recited in claim 1, wherein said flame retardant jacket is made of flame retardant flexible polyvinyl chloride material.

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