CN212380169U

CN212380169U - Aluminum-core polyvinyl chloride insulated thin steel strip armored polyvinyl chloride sheath power cable

Info

Publication number: CN212380169U
Application number: CN202021439309.8U
Authority: CN
Inventors: 马荣丰
Original assignee: Kunming Red Star Cable Co ltd
Current assignee: Kunming Red Star Cable Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-01-19
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses an insulating thin steel band armoured polyvinyl chloride sheath power cable of aluminium core polyvinyl chloride, it includes the oversheath, first armor, the viscose layer, the second armor, the enhancement layer, the insulating layer, the inner sheath, the packing layer, interior armor, the inner support, the aluminium core electric wire, first armor, the second armor is the polyvinyl chloride pipe, be provided with first steel band in first armor, the second steel band in the second armor respectively, first steel band, the cross-section of second steel band is the arc, the top of second steel band is provided with the recess, the both ends of first steel band set up in the recess, the interior survey of second armor is provided with the enhancement layer, the inboard of enhancement layer is provided with the insulating layer, the interior survey of insulating layer is provided with the inner sheath, be provided with interior armor on the inner wall of inner sheath, the tip of inner support sets up on the interior armor, the packing layer sets up including on the armor, And aluminum core wires are arranged between the inner brackets. The utility model discloses a cable armor's intensity is high.

Description

Aluminum-core polyvinyl chloride insulated thin steel strip armored polyvinyl chloride sheath power cable

Technical Field

The utility model relates to a cable field especially relates to an insulating thin steel band armour polyvinyl chloride sheath power cable of aluminium core polyvinyl chloride.

Background

Armouring means that the cable which is subjected to large mechanical forces should have an armouring layer, i.e. a layer of metal protection is added on the outermost side of the product in order to prevent the inner utility layer from being damaged during transportation and installation. An extruded or wrapped lining layer with the specified thickness is arranged below the cable forging layer. When the lead-jacketed cable requires armor. A belting layer should be used, and if a spacer sleeve is used under the armor layer, it can replace the inner liner layer or be added on the inner liner layer.

Existing armored cables, such as patent application nos.: 201820987284.1, the tensile strength of the cable is enhanced by providing multiple layers of armor layers, but the inner armor layer inside the cable is triangular, so that once the cable is subjected to an external force, the inner armor layer is very easy to puncture the cable protection layer, resulting in damage to the cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an insulating thin steel band armour polyvinyl chloride sheath power cable of aluminium core polyvinyl chloride to prior art not enough.

In order to achieve the above purpose, the present invention is achieved by the following technical solutions.

An aluminum core polyvinyl chloride insulating thin steel strip armored power cable comprises an outer sheath, a first armor layer, an adhesive layer, a second armor layer, a reinforcing layer, an insulating layer, an inner sheath, a packing layer, an inner armor layer, an inner support and an aluminum core wire, wherein the first armor layer is arranged on the inner side of the outer sheath, the second armor layer is arranged on the inner side of the first armor layer, the adhesive layer is arranged between the first armor layer and the second armor layer, the first armor layer and the second armor layer are polyvinyl chloride pipes, a first steel strip and a second steel strip are respectively arranged in the first armor layer and the second armor layer, the cross sections of the first steel strip and the second steel strip are arc-shaped, grooves are formed in the top ends of the second steel strip, the two ends of the first steel strip are arranged in the grooves, the reinforcing layer is arranged on the inner side of the second armor layer, the insulating layer is arranged on the inner side of the reinforcing layer, the inner side of the insulating layer is provided with an inner sheath, the inner wall of the inner sheath is provided with an inner armor layer, the end part of the inner support is arranged on the inner armor layer, the packing layer is arranged between the inner armor layer and the inner support, and the inner support is provided with an aluminum core wire.

Further, the outer sheath is a silicone rubber tube.

Further, the adhesive layer is a polyurethane sealant.

Furthermore, the reinforcing layer is a PVC pipe containing a steel wire mesh.

Further, the insulating layer is a polyvinyl chloride insulating layer.

Further, the inner sheath is the silicone tube.

Further, the filler layer is soft PE filler.

Further, the inner armor layer is three silicon rubbers which are distributed in a staggered mode.

Furthermore, the inner support is Y-shaped.

Furthermore, the number of the aluminum core wires is three, and a polyvinyl chloride insulating layer, a tinned copper wire shielding layer and a silica gel protective layer are respectively arranged on the surface of each aluminum core wire.

The utility model has the advantages that: 1. the double armoring arrangement is adopted, so that the strength of the cable armoring can be effectively enhanced, and meanwhile, the two layers of armoring are mutually chelated, so that the external stress of the cable can be effectively dispersed; 2. inside sets up the armor, leads to estimating the leg joint as an organic whole, further strengthens cable strength, and the support separates the electric wire simultaneously, avoids intertwining between the electric wire, wearing and tearing.

Drawings

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

fig. 2 is a schematic cross-sectional structure view of the aluminum core wire of the present invention;

in the figure: 1. an outer sheath; 2. a first armor layer; 3. an adhesive layer; 4. a second armor layer; 5. a reinforcing layer; 6. an insulating layer; 7. an inner sheath; 8. a filler layer; 9. an inner armor layer; 10. an inner support; 11. an aluminum core wire; 12. a first steel belt; 13. a second steel belt; 14. a groove; 111. a polyvinyl chloride insulating layer; 112. a tinned copper wire shielding layer; 113. and (5) a silica gel protective layer.

Detailed Description

The present invention is further illustrated by the following examples, but is not limited to the contents of the specification.

As shown in the figure: an aluminum core polyvinyl chloride insulating thin steel strip armored polyvinyl chloride sheath power cable comprises an outer sheath 1, a first armor layer 2, an adhesive layer 3, a second armor layer 4, a reinforcing layer 5, an insulating layer 6, an inner sheath 7, a packing layer 8, an inner armor layer 9, an inner support 10 and an aluminum core wire 11.

The inboard of oversheath 1 is provided with first armor 2, the inboard of first armor 2 is provided with second armor 4, first armor 2, be provided with viscose layer 3 between the second armor 4, the inside survey of second armor 4 is provided with enhancement layer 5, the inboard of enhancement layer 5 is provided with insulating layer 6, the inside survey of insulating layer 6 is provided with inner sheath 7, be provided with interior armor 9 on the inner wall of inner sheath 7, on armor 9 including the tip setting of inner support 10, armor 9 including packing layer 8 sets up, between the inner support 10, be provided with aluminium core electric wire 11 on the inner support 10.

First armor 2, second armor 4 is the polyvinyl chloride pipe, first armor 2, be provided with first steel band 12 in the second armor 4 respectively, second steel band 13, the steel band mainly plays the effect of strengthening rib, first steel band 12, the cross-section of second steel band 13 is the arc, the top of second steel band 13 is provided with recess 14, the both ends setting of first steel band 12 is in recess 14, this setting can guarantee that the lateral surface of cable is regardless of which position atress, all can disperse the atress through the steel band, avoid the cable to damage.

The outer sheath 1 is a silicone rubber tube, has good wear resistance and certain elastic plastic deformation, and can offset part of external force.

The adhesive layer 3 is made of polyurethane sealant which has high tensile strength, excellent elasticity, wear resistance, oil resistance and cold resistance, but has poor water resistance, especially poor alkali resistance and water resistance.

The reinforcing layer 5 is a PVC pipe containing a steel wire mesh, and the strength of the cable is further enhanced.

The insulating layer 6 is a soft polyvinyl chloride insulating layer, and the insulating effect is good.

The inner sheath 7 is a silicone tube, and has good insulating property. Meanwhile, the silicone tube has good plasticity and tensile property.

The filler layer 8 is soft PE filler and can play a role in fixing the aluminum core electric wire 11.

The inner armor layer 9 is three pieces of silicon rubber which are distributed in a staggered way.

The inner support 10 is Y-shaped, and the top ends of the inner support are respectively arranged on the inner armor layers 9. The inner support 10 separates the three aluminum core wires 11 from each other, so that the three aluminum core wires cannot contact with each other, and mutual friction, damage and fire connection are avoided.

The number of the aluminum core wires 11 is three, and the surfaces of the aluminum core wires are respectively provided with a polyvinyl chloride insulating layer 111, a tinned copper wire shielding layer 112 and a silica gel protective layer 113, so that the aluminum core wires 11 are prevented from being worn and damaged when contacting the inner support 10.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. In addition, the description which follows is a preferred embodiment of the invention, but is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present invention is defined by the appended claims.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an insulating thin steel band armour polyvinyl chloride sheath power cable of aluminium core polyvinyl chloride which characterized in that: the cable comprises an outer sheath (1), a first armor layer (2), an adhesive layer (3), a second armor layer (4), a reinforcing layer (5), an insulating layer (6), an inner sheath (7), a packing layer (8), an inner armor layer (9), an inner support (10) and an aluminum core wire (11), wherein the first armor layer (2) is arranged on the inner side of the outer sheath (1), the second armor layer (4) is arranged on the inner side of the first armor layer (2), the adhesive layer (3) is arranged between the first armor layer (2) and the second armor layer (4), the first armor layer (2) and the second armor layer (4) are polyvinyl chloride pipes, a first steel belt (12) and a second steel belt (13) are respectively arranged in the first armor layer (2) and the second armor layer (4), the cross sections of the first steel belt (12) and the second steel belt (13) are arc-shaped, a groove (14) is arranged at the top end of the second steel belt (13), the two ends of the first steel belt (12) are arranged in the grooves (14), the inner side of the second armor layer (4) is provided with the reinforcing layer (5), the inner side of the reinforcing layer (5) is provided with the insulating layer (6), the inner side of the insulating layer (6) is provided with the inner sheath (7), the inner wall of the inner sheath (7) is provided with the inner armor layer (9), the end portion of the inner support (10) is arranged on the inner armor layer (9), the packing layer (8) is arranged between the inner armor layer (9) and the inner support (10), and the inner support (10) is provided with the aluminum core wire (11).

2. The aluminum-core polyvinyl chloride insulated thin steel strip armored polyvinyl chloride jacketed power cable of claim 1, wherein: the outer sheath (1) is a silicone rubber tube.

3. The aluminum-core polyvinyl chloride insulated thin steel strip armored polyvinyl chloride jacketed power cable of claim 1, wherein: the adhesive layer (3) is polyurethane sealant.

4. The aluminum-core polyvinyl chloride insulated thin steel strip armored polyvinyl chloride jacketed power cable of claim 1, wherein: the reinforcing layer (5) is a PVC pipe containing a steel wire mesh.

5. The aluminum-core polyvinyl chloride insulated thin steel strip armored polyvinyl chloride jacketed power cable of claim 1, wherein: the insulating layer (6) is a polyvinyl chloride insulating layer.

6. The aluminum-core polyvinyl chloride insulated thin steel strip armored polyvinyl chloride jacketed power cable of claim 1, wherein: the inner sheath (7) is a silicone tube.

7. The aluminum-core polyvinyl chloride insulated thin steel strip armored polyvinyl chloride jacketed power cable of claim 1, wherein: the filler layer (8) is soft PE filler.

8. The aluminum-core polyvinyl chloride insulated thin steel strip armored polyvinyl chloride jacketed power cable of claim 1, wherein: the inner armor layer (9) is three silicon rubbers which are distributed in a staggered mode.

9. The aluminum-core polyvinyl chloride insulated thin steel strip armored polyvinyl chloride jacketed power cable of claim 1, wherein: the inner support (10) is Y-shaped.

10. The aluminum-core polyvinyl chloride insulated thin steel strip armored polyvinyl chloride jacketed power cable of claim 1, wherein: the aluminum core electric wire (11) is three, and the surface of the aluminum core electric wire (11) is respectively provided with a polyvinyl chloride insulating layer (111), a tinned copper wire shielding layer (112) and a silica gel protective layer (113).