CN217955501U - Composite insulation wear-resistant cable - Google Patents

Abstract

The utility model discloses a composite insulation wear-resistant cable, including the stranded conductor, the outside parcel of stranded conductor and fixedly connected with inorganic insulating material, the outside parcel of inorganic insulating material is provided with outer copper sheath, the outside parcel of outer copper sheath is provided with wear-resisting cover, wear-resisting cover includes insulating layer and wearing layer, the outside of insulating layer parcel and fixed connection at outer copper sheath, the wearing layer parcel and fixed connection are at the surface of metal mesh grid, the surface of wearing layer is provided with the wear-resisting sand grip of a plurality of circumference array distributions; the utility model discloses a wear-resisting sand grip contacts with the object surface that bears this cable, can play outstanding wear-resisting effect, when pulling the cable, the outer difficult because the friction is damaged of cable, has guaranteed the fire behavior of this cable to the insulating layer that sets up can effectually completely cut off the heat of outer copper sheathing, protects the wearing layer, has improved the life of wearing layer.

Description

Composite insulation wear-resistant cable

Technical Field

The utility model relates to a composite cable technical field, concretely relates to compound insulation wear-resisting cable.

Background

With the development of science and technology and the progress of the industrial field, the composite cable can reduce consumption loss, and compared with a common cable, the transportation and distribution cable made of the composite material has the advantages of good designability, no creep and convenience in use.

The patent with publication number CN211427900U discloses a flexible mineral insulated cable, including the stranded conductor, the outside parcel of stranded conductor has the mineral matter insulating layer, the inside of flexible mineral insulated cable body is located position between the mineral matter insulating layer is provided with the filler, the outside parcel of flexible mineral insulated cable body has the mineral to separate the fire layer, the outside parcel that the mineral separates the fire layer has the protective sheath.

In view of the above technical solutions, the applicant believes that, during construction, a cable may need to be dragged for a long time, and an outer layer of the cable may be damaged due to friction, which may eventually cause a reduction in the fireproof performance of the cable.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a compound insulation wear-resisting cable to solve and carry out long-time operation of pulling to the cable, the cable skin probably is damaged because of the friction, finally leads to the fire behavior of cable to reduce the problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a compound insulation wear-resisting cable, includes the stranded conductor, the outside parcel and the inorganic insulating material of fixedly connected with of stranded conductor, inorganic insulating material's outside parcel and be provided with outer copper sheath, outer copper sheath's outside parcel is provided with wear-resisting cover, wear-resisting cover includes insulating layer and wearing layer, insulating layer parcel and fixed connection are in outer copper sheath's outside, wearing layer parcel and fixed connection are at the surface of metal mesh grid, the surface of wearing layer is provided with the wear-resisting sand grip of a plurality of circumference array distributions.

As the utility model discloses an optimized technical scheme, still be provided with interior copper sheath between stranded conductor and the outer copper sheath, the cross-section of interior copper sheath is triangle-shaped, three edges of interior copper sheath all with the inner wall fixed connection of outer copper sheath.

As a preferred technical scheme of the utility model, wear-resisting cover still includes metal mesh grid, metal mesh grid sets up between insulating layer and wearing layer, metal mesh grid's inboard and outside respectively with insulating layer and metal mesh grid fixed connection.

As a preferred technical scheme of the utility model, a plurality of metal strips of surface still fixedly connected with of metal mesh grid, the position of metal strip is corresponding with wear-resisting sand grip.

As an optimized technical scheme of the utility model, the surface of wearing layer is provided with fire retardant coating.

As a preferred technical scheme of the utility model, the outer wall of wear-resisting sand grip is provided with a plurality of indents, and is a plurality of the indentation is along the long limit direction evenly distributed of wear-resisting sand grip.

The beneficial effects of the utility model reside in that:

1. the utility model discloses a mutually supporting between insulating layer, metal mesh grid, wearing layer and the wear-resisting sand grip, this cable contacts through wear-resisting sand grip and the object surface that bears this cable, can play outstanding wear-resisting effect, when pulling the cable, the cable skin is difficult to because the friction is damaged, has guaranteed the fire behavior of this cable to the insulating layer of setting can be effectual the heat of isolated outer copper sheath, protects the wearing layer, has improved the life of wearing layer.

2. The utility model discloses be provided with interior copper sheath, interior copper sheath adopts triangle-shaped stable structure, can support outer copper sheath, can improve the anti extrusion ability of this cable for this cable is difficult to be deformed because of external pressure, has higher intensity.

3. The utility model discloses when being provided with fire retardant coating and having outstanding wearability, can generate even fine and close spongy foam layer when receiving fire, can restrain effectively, propagation and stretching of separation flame to reach the purpose of protection cable, stop flame to stretch, prevent the emergence and the development of conflagration.

In short, the technical scheme of the application utilizes coherent and compact structure to solve long-time dragging operation to the cable, and the cable skin can be damaged because of the friction, finally leads to the fire behavior of cable to reduce the problem.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

Fig. 1 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the outer copper sheath of the present invention;

fig. 3 is a schematic sectional structure view of the wear-resistant sleeve of the present invention;

fig. 4 is a schematic structural view of the indentation of the present invention.

In the figure: 1. a stranded conductor; 2. an outer copper sheath; 21. an inner copper sheath; 22. an inorganic insulating material; 3. a wear-resistant sleeve; 31. a thermal insulation layer; 32. a metal mesh grid; 321. a metal strip; 33. a wear resistant layer; 331. wear-resistant convex strips; 332. indentation; 4. a fire-retardant coating.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the above description of the present invention, it should be noted that the terms "one side" and "the other side" are used for indicating the position or the positional relationship based on the position or the positional relationship shown in the drawings, or the position or the positional relationship which is usually placed when the product of the present invention is used, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

Further, the term "same" or the like does not mean that the components are absolutely required to be the same, but may have slight differences. The term "perpendicular" merely means that the positional relationship between the components is more perpendicular than "parallel", and does not mean that the structure must be perfectly perpendicular, but may be slightly inclined.

Example one

Referring to fig. 1-3, the composite insulated wear-resistant cable of the present embodiment includes a stranded conductor 1, an inorganic insulating material 22 is wrapped and fixedly connected to the outside of the stranded conductor 1, an outer copper sheath 2 is wrapped and disposed outside the inorganic insulating material 22, the inorganic insulating material 22 may be magnesium oxide powder for isolating the stranded conductor 1 from the outer copper sheath 2, the copper sheath is melted at 1083 ℃, and the stranded conductor 1 can continue to operate under a condition close to flame by the cooperation of the two, so as to achieve a good flame-retardant effect.

Simultaneously, the outside parcel of outer copper sheath 2 is provided with the wear-resisting cover 3 that is used for protecting outer copper sheath 2, and wear-resisting cover 3 includes insulating layer 31 and wearing layer 33, and insulating layer 31 parcel and fixed connection are in the outside of outer copper sheath 2, and wearing layer 33 parcel and fixed connection are at the surface of metal mesh grid 32. The wear-resistant layer 33 is made of a polyurethane material, and the polyurethane material has high tensile strength and high wear resistance, resists corrosion of various grease and solvents, resists low temperature, electrons and radiation of a magnetic field, and can effectively protect the stranded conductor 1 and the outer copper sheath 2. The heat insulating layer 31 can be made of glass fiber materials, can effectively isolate the heat of the outer copper sheath 2, protects the wear-resistant layer 33, and prolongs the service life of the wear-resistant layer 33.

Wherein, wear-resisting cover 3 still includes metal mesh grid 32, and metal mesh grid 32 sets up between insulating layer 31 and wearing layer 33, and the inboard and the outside of metal mesh grid 32 are respectively with insulating layer 31 and metal mesh grid 32 fixed connection. Wearing layer 33 has outstanding tear resistance ability, has improved the bulk strength of wear-resisting cover 3, and the surface of wearing layer 33 is provided with the wear-resisting sand grip 331 of a plurality of circumference array distributions, and wear-resisting sand grip 331 can increase wearing layer 33's thickness in save material, and when dragging this cable, this cable contacts through wear-resisting sand grip 331 and the object surface that bears this cable, can play outstanding wear-resisting effect.

In addition, the outer surface of the metal mesh grid 32 is also fixedly connected with a plurality of metal strips 321, the metal strips 321 and the metal mesh grid 32 are made of the same material, the positions of the metal strips 321 correspond to the wear-resistant convex strips 331, and the contact area between the wear-resistant layer 33 and the metal mesh grid 32 can be increased by the arranged metal strips 321, so that the connection between the wear-resistant layer 33 and the metal mesh grid 32 is more stable and firmer. The outer wall of wear-resisting sand grip 331 is provided with a plurality of indentation 332, and a plurality of indentation 332 can improve the roughness of this cable surface along wear-resisting sand grip 331's long limit direction evenly distributed, can reduce the condition emergence of skidding when carrying out the operation to the cable.

Example two

Referring to fig. 1-2, in the composite insulating wear-resistant cable of the present embodiment, an inner copper sheath 21 is further disposed between the stranded conductor 1 and the outer copper sheath 2, a cross section of the inner copper sheath 21 is triangular, three edges of the inner copper sheath 21 are all fixedly connected to an inner wall of the outer copper sheath 2, and the inner copper sheath 21 adopts a triangular stable structure, so as to support the outer copper sheath 2, thereby improving the anti-extrusion capability of the cable, and making the cable not easily deform due to external pressure.

The outer surface of the wear-resistant layer 33 is provided with the fireproof coating 4, the fireproof coating 4 is formed by adding various fireproof flame retardants, plasticizers and the like into a tertiary acrylic emulsion water-based material, and the fireproof coating has excellent wear resistance, can generate a uniform and compact spongy foam layer when being fired, can effectively inhibit and obstruct the propagation and spread of flame, and achieves an excellent fireproof effect.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (6)

1. A composite insulated wear-resistant cable comprises a stranded conductor (1), and is characterized in that: the outer parcel and the fixedly connected with inorganic insulating material (22) of stranded conductor (1), the outside parcel of inorganic insulating material (22) is provided with outer copper sheathing (2), the outside parcel of outer copper sheathing (2) is provided with wear-resisting cover (3), wear-resisting cover (3) are including insulating layer (31) and wearing layer (33), the outside of insulating layer (31) parcel and fixed connection at outer copper sheathing (2), wearing layer (33) parcel and fixed connection are at the surface of metal mesh grid (32), the surface of wearing layer (33) is provided with wear-resisting sand grip (331) of a plurality of circumference array distributions.

2. The composite insulated wear-resistant cable according to claim 1, wherein: an inner copper sheath (21) is further arranged between the stranded conductor (1) and the outer copper sheath (2), the cross section of the inner copper sheath (21) is triangular, and three edges of the inner copper sheath (21) are fixedly connected with the inner wall of the outer copper sheath (2).

3. The composite insulated wear-resistant cable according to claim 1, wherein: the wear-resistant sleeve (3) further comprises a metal woven net (32), the metal woven net (32) is arranged between the heat insulation layer (31) and the wear-resistant layer (33), and the inner side and the outer side of the metal woven net (32) are fixedly connected with the heat insulation layer (31) and the metal woven net (32) respectively.

4. The composite insulated wear-resistant cable according to claim 1, wherein: the outer surface of the metal mesh grid (32) is also fixedly connected with a plurality of metal strips (321), and the positions of the metal strips (321) correspond to the wear-resistant convex strips (331).

5. The composite insulated wear-resistant cable according to claim 1, wherein: and the outer surface of the wear-resistant layer (33) is provided with a fireproof coating (4).

6. The composite insulated wear-resistant cable according to claim 1, wherein: the outer wall of each wear-resistant convex strip (331) is provided with a plurality of indentations (332), and the indentations (332) are uniformly distributed along the long edge direction of each wear-resistant convex strip (331).

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