CN209947462U

CN209947462U - Single-core steel wire armored low-voltage cable

Info

Publication number: CN209947462U
Application number: CN201920860607.5U
Authority: CN
Inventors: 张书高
Original assignee: INNER MONGOLIA RENDA SPECIAL CABLE Co Ltd
Current assignee: INNER MONGOLIA RENDA SPECIAL CABLE Co Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-01-14
Anticipated expiration: 2029-06-10

Abstract

The utility model discloses a single core steel wire armor low tension cable, which comprises a wire, the outer wall of wire is equipped with insulating isolation layer, insulating isolation layer's outer wall is equipped with first rubber tube, the outer wall interference fit of first rubber tube has the polyethylene pipe. This single core steel wire armor low tension cable, through the recess that second rubber tube outer wall was seted up, make and laying this single core steel wire armor low tension cable, in case the distortion appears, people can distinguish through the naked eye, prevent because long-time, too big distortion, lead to cable self structure to receive the problem of influence, its intensity and safety in utilization have been guaranteed, and pass through the cooperation between steel ring and the rubber post, make when laying, this single core steel wire armor low tension cable's the angle of buckling and radius receive the restriction, can not be because buckle too big, the radius leads to this single core steel wire armor low tension cable to damage for a short time, and this single core steel wire armor low tension cable has extremely strong anti-cutting, fire resistance.

Description

Single-core steel wire armored low-voltage cable

Technical Field

The utility model relates to the technical field of cables, specifically a single core steel wire armor low tension cable.

Background

The cable comprises a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like, which are composed of single-strand or multi-strand wires and insulating layers and are used for connecting circuits, electric appliances and the like, in which a single-stranded cable is called a mono-core cable, in order to improve the strength of the cable, the mono-core cable is generally armored, however, the armored cable in the prior art sometimes has the problem of cable distortion when being laid, but the distorted cable is not easy to be found by people, when the distortion is too big, can lead to its intensity to reduce, when laying, because the bending radius of cable is little, the angle is big sometimes, can lead to wire or protective structure in the cable inside to appear the problem of rupture, so can't satisfy people's user demand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a single core steel wire armor low tension cable to the armor cable who proposes among the prior art among the above-mentioned background art of solution is when laying, the problem of cable distortion can appear sometimes, however the cable of distortion is difficult this people to discover, when the distortion is too big, can lead to its intensity to reduce, when laying, sometimes because the bending radius of cable is little, the angle is big, can lead to the problem that the inside wire of cable or protective structure appear breaking, so can't satisfy people's the problem of use needs.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a single core steel wire armor low tension cable, includes the wire, the outer wall of wire is equipped with insulating isolation layer, insulating isolation layer's outer wall is equipped with first rubber tube, the outer wall interference fit of first rubber tube has the polyethylene pipe, the outer wall of polyethylene pipe is equipped with the filling layer, the outer wall of filling layer is equipped with the third rubber tube, the outer wall of third rubber tube is equipped with the anti-cutting layer, the outer wall of anti-cutting layer is equipped with the second rubber tube, the outer wall top of second rubber tube is seted up flutedly, the outer wall of second rubber tube has cup jointed the several steel ring, and steel ring and second rubber tube clearance fit, be in the same place through the rubber column rigid coupling between the steel ring, the outer wall of rubber column and second rubber tube is laminated mutually.

Preferably, the insulation isolation layer comprises a cross-linked polyethylene insulation layer and a ceramic polyolefin isolation layer, the inner wall of the cross-linked polyethylene insulation layer is in interference fit with the outer wall of the lead, the outer wall of the cross-linked polyethylene insulation layer is attached to the inner wall of the ceramic polyolefin isolation layer, and the outer wall of the ceramic polyolefin isolation layer is in interference fit with the outer wall of the first rubber pipe.

Preferably, the thickness of the crosslinked polyethylene insulating layer is half of that of the ceramic polyolefin isolating layer.

Preferably, the filling layer includes three rubber strip and rope made of hemp, and is three the inboard of rubber strip all laminates with the outer wall of polyethylene pipe mutually, the packing has the rope made of hemp between two liang of rubber strips.

Preferably, the anti-cutting layer includes steel wire, wire net and glass fiber layer, the outer wall of third rubber tube is evenly laid to the steel wire, the inner wall of wire net and the outer wall of steel wire laminate mutually, the outer wall of wire net and the inner wall on glass fiber layer laminate mutually, it has thermal-insulated fire clay to fill between glass fiber layer and the third rubber tube.

Preferably, the steel wire has a diameter of 1 to 1.5 mm.

Compared with the prior art, the beneficial effects of the utility model are that: this single core steel wire armor low tension cable, through the recess that second rubber tube outer wall was seted up, make and laying this single core steel wire armor low tension cable, in case the distortion appears, people can distinguish through the naked eye, prevent because long-time, too big distortion, lead to cable self structure to receive the problem of influence, its intensity and safety in utilization have been guaranteed, and pass through the cooperation between steel ring and the rubber post, make when laying, this single core steel wire armor low tension cable's the angle of buckling and radius receive the restriction, can not be because buckle too big, the radius leads to this single core steel wire armor low tension cable to damage for a short time, and this single core steel wire armor low tension cable has extremely strong anti-cutting, fire resistance, it is inside inseparable, excellent in use effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of the wire, hemp rope and steel wire in FIG. 1;

fig. 3 is a right side view of fig. 1.

In the figure: 1. insulating isolation layer, 101, crosslinked polyethylene insulating layer, 102, ceramic polyolefin isolation layer, 2, filling layer, 201, twine, 202, rubber strip, 3, anti-cutting layer, 301, steel wire, 302, thermal-insulated fire clay, 303, wire net, 304, glass fiber silk layer, 4, wire, 5, first rubber tube, 6, polyethylene pipe, 7, third rubber tube, 8, second rubber tube, 9, recess, 10, steel ring, 11, rubber column.

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. 1-3, the present invention provides a technical solution: a single-core steel wire armored low-voltage cable comprises a wire 4, wherein an insulating isolation layer 1 is arranged on the outer wall of the wire 4, a first rubber pipe 5 is arranged on the outer wall of the insulating isolation layer 1, a polyethylene pipe 6 is arranged on the outer wall of the first rubber pipe 5 in interference fit, the polyethylene pipe 6 mainly plays a role in improving the hardness of the single-core steel wire armored low-voltage cable, a filling layer 2 is arranged on the outer wall of the polyethylene pipe 6, a third rubber pipe 7 is arranged on the outer wall of the filling layer 2, the third rubber pipe 7 plays a role in wrapping the filling layer 2, a cutting-proof layer 3 is arranged on the outer wall of the third rubber pipe 7, a second rubber pipe 8 is arranged on the outer wall of the cutting-proof layer 3, a groove 9 is formed above the outer wall of the second rubber pipe 8, whether the single-core steel wire armored low-voltage cable is twisted or not can be observed through the groove 9, a plurality of steel rings 10 are sleeved on the outer, when the single-core steel wire armored low-voltage cable is bent, the single-core steel wire armored low-voltage cable can play a certain limiting role, the fracture caused by too small bending radius is prevented, the steel ring 10 is in clearance fit with the second rubber pipe 8, the steel ring 10 is fixedly connected together through the rubber column 11, the rubber column 11 is attached to the outer wall of the second rubber pipe 8, when the steel ring 10 is not used, the steel ring can be taken down from the outer wall of the second rubber pipe 8, the insulating isolation layer 1 comprises a cross-linked polyethylene insulating layer 101 and a ceramic polyolefin isolation layer 102, the inner wall of the cross-linked polyethylene insulating layer 101 is in interference fit with the outer wall of the lead 4, the outer wall of the cross-linked polyethylene insulating layer 101 is attached to the inner wall of the ceramic polyolefin isolation layer 102, the ceramic polyolefin isolation layer 102 is composed of low-density polyethylene resin and ceramic powder, and the outer wall of the ceramic polyolefin isolation layer 102 is in interference fit with the outer, the thickness of the crosslinked polyethylene insulating layer 101 is one half of that of the ceramic polyolefin isolating layer 102, the filling layer 2 comprises three rubber strips 202 and hemp ropes 201, the inner sides of the three rubber strips 202 are all attached to the outer wall of the polyethylene pipe 6, the hemp ropes 201 are filled between every two rubber strips 202, the anti-cutting layer 3 comprises steel wires 301, a steel wire mesh 303 and a glass fiber wire layer 304, the steel wires 301 are uniformly laid on the outer wall of the third rubber pipe 7, the inner wall of the steel wire mesh 303 is attached to the outer wall of the steel wires 301, the steel wire mesh 303 and the steel wires 301 mainly play a role in improving the anti-cutting capacity of the single-core steel wire armored low-voltage cable, the outer wall of the steel wire mesh 303 is attached to the inner wall of the glass fiber wire layer 304, heat-insulating refractory mortar 302 is filled between the glass fiber wire layer 304 and the third rubber pipe 7, and, magnesium hydroxide and talc, the diameter of the steel wire 301 being 1-1.5 mm.

When the single-core steel wire armored low-voltage cable is used, one end of a wire 4 is electrically connected with the outside, then the single-core steel wire armored low-voltage cable is laid according to a specified path, when the single-core steel wire armored low-voltage cable is required to be bent, a mechanism consisting of a steel ring 10 and a rubber column 11 is sleeved on the outer wall of a second rubber pipe 8 at the bent position, the single-core steel wire armored low-voltage cable is prevented from being bent too much through the deformation of the rubber column 11, the single-core steel wire armored low-voltage cable is prevented from being damaged, the single-core steel wire armored low-voltage cable can be prevented from being twisted through observing the position of a groove 9 in the laying process, when the single-core steel wire armored low-voltage cable is used, if the single-core steel wire armored low-voltage cable is cut by the outside, the steel wire 301 and the steel wire mesh 303 can play a good role in protection, and the wire 4 inside, the heat insulation refractory mortar 302 can ensure that the internal lead 4 is not influenced by high temperature below a certain temperature, and plays a role in heat insulation and fire resistance.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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 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.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 single core steel wire armoured low tension cable, includes wire (4), its characterized in that: the outer wall of the lead (4) is provided with an insulating isolation layer (1), the outer wall of the insulating isolation layer (1) is provided with a first rubber tube (5), the outer wall of the first rubber tube (5) is in interference fit with a polyethylene tube (6), the outer wall of the polyethylene tube (6) is provided with a filling layer (2), a third rubber pipe (7) is arranged on the outer wall of the filling layer (2), an anti-cutting layer (3) is arranged on the outer wall of the third rubber pipe (7), a second rubber tube (8) is arranged on the outer wall of the cutting-proof layer (3), a groove (9) is arranged above the outer wall of the second rubber tube (8), the outer wall of the second rubber tube (8) is sleeved with a plurality of steel rings (10), the steel rings (10) are in clearance fit with the second rubber tube (8), the steel rings (10) are fixedly connected together through rubber columns (11), the rubber column (11) is attached to the outer wall of the second rubber tube (8).

2. A single core wire armoured low voltage cable according to claim 1 characterized in that: the insulation isolation layer (1) comprises a cross-linked polyethylene insulation layer (101) and a ceramic polyolefin isolation layer (102), the inner wall of the cross-linked polyethylene insulation layer (101) is in interference fit with the outer wall of the lead (4), the outer wall of the cross-linked polyethylene insulation layer (101) is attached to the inner wall of the ceramic polyolefin isolation layer (102), and the outer wall of the ceramic polyolefin isolation layer (102) is in interference fit with the outer wall of the first rubber tube (5).

3. A single core wire armoured low voltage cable according to claim 2 characterized in that: the thickness of the crosslinked polyethylene insulating layer (101) is half of that of the ceramic polyolefin isolating layer (102).

4. A single core wire armoured low voltage cable according to claim 1 characterized in that: the filling layer (2) comprises three rubber strips (202) and hemp ropes (201), the inner sides of the rubber strips (202) are attached to the outer wall of the polyethylene pipe (6), and the hemp ropes (201) are filled between every two rubber strips (202).

5. A single core wire armoured low voltage cable according to claim 1 characterized in that: anti-cutting layer (3) include steel wire (301), wire net (303) and glass fiber silk layer (304), the outer wall of third rubber tube (7) is evenly laid in steel wire (301), the inner wall of wire net (303) is laminated with the outer wall of steel wire (301) mutually, the outer wall of wire net (303) is laminated with the inner wall of glass fiber silk layer (304) mutually, it has thermal-insulated fire clay (302) to fill between glass fiber silk layer (304) and third rubber tube (7).

6. A single core wire armored low voltage cable according to claim 5, wherein: the diameter of the steel wire (301) is 1-1.5 mm.