CN214099256U - Anticollision is shielded this ampere of cable by force - Google Patents

Abstract

The utility model discloses an anticollision strong shielding intrinsic safety cable, which comprises a power wire core (1) and a communication wire core (2), wherein the power wire core (1) and the communication wire core (2) are positioned at the innermost layer of the cable, and the outer side is sequentially provided with an outer insulating layer (4), an outer shielding layer (5) and an outer sheath (6); the power wire core (1) and the communication wire core (2) are separated by a rectangular isolating layer (3); the cross sections of the outer insulating layer (4), the outer shielding layer (5) and the outer sheath (6) are all similar to rectangles; the outer sheath (6) is internally provided with a reinforcing rib (7), and the reinforcing rib (7) is arranged on the long side of the rectangular section of the outer sheath (6). The utility model discloses an anticollision is shielded this ampere of cable by force has realized the cable folk prescription to crooked effect, has a great deal of advantage such as being convenient for fixed, high electromagnetic shielding performance, anti mechanical impact ability reinforce.

Description

Anticollision is shielded this ampere of cable by force

Technical Field

The utility model relates to an anticollision is shielded this ampere of cable by force belongs to wire and cable technical field.

Background

The conventional cable is mostly circular in cross section, however, when the circular cable is laid on the ground, the circular cable is difficult to arrange, the cable can slide, and when a plurality of cables are arranged together, the cable can be twisted additionally, and the cables are twisted with each other.

Furthermore, cables of circular cross-section can be bent in all directions, and in practice, it is often only necessary to twist the cable in one direction, while the other direction remains straight.

Traditional cable receives the striking back and appears inside cable core damage easily, and the cable lacks the elasticity protection, and the armor can reduce the striking influence to the cable, but has greatly increased the weight of cable, has improved the construction degree of difficulty and construction cost.

For the reasons, the inventor improves the existing anti-collision strong-shielding intrinsic safety cable to solve the problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems, the utility model discloses a research that the people of the utility model have done keen attention, design an anticollision strong shielding intrinsic safety cable, including power core 1 and communication core 2, power core 1 and communication core 2 are located the cable inlayer, and the outside has set gradually outer insulating layer 4, outer shielding layer 5 and oversheath 6;

the power wire core 1 and the communication wire core 2 are separated by a < -shaped isolation layer 3;

the cross sections of the outer insulating layer 4, the outer shielding layer 5 and the outer sheath 6 are all similar to rectangles;

the outer sheath 6 is internally provided with a reinforcing rib 7, and the reinforcing rib 7 is arranged on the long side of the rectangular section of the outer sheath 6.

Preferably, the isolation layer 3 comprises a metal framework 31, and a silica gel layer 32 is wrapped on the outer side of the metal framework 31.

Furthermore, the edge of the isolation layer 3 is connected with two long sides of the rectangular section of the outer insulation layer 4 to support the cable.

According to the utility model discloses, outer shielding layer 5 is the shaping is woven to the copper line.

In the present invention, the reinforcing rib 7 is provided in a row along the long side direction at the long side of the outer sheath 6.

The utility model discloses the beneficial effect who has includes:

(1) according to the anti-collision strong-shielding intrinsic safety cable provided by the utility model, the power wire core and the communication wire core are combined in one cable, so that the engineering cost is saved;

(2) according to the anti-collision strong-shielding intrinsic safety cable provided by the utility model, the design that the cross section is rectangular is adopted, so that the contact area between the cable and the ground is larger, the cable is not easy to slide, and the cable is convenient to fix;

(3) according to the anti-collision strong-shielding intrinsic safety cable provided by the utility model, the reinforcing ribs are arranged on the long side of the outer sheath, so that the unidirectional bending effect of the cable is realized;

(4) according to the anti-collision strong-shielding intrinsic safety cable provided by the utility model, the electromagnetic shielding effect is improved and the safety and stability of communication signal transmission are ensured through the design of the isolation layer;

(5) according to the utility model provides an anticollision is shielding intrinsically safe cable by force, through the design of isolation layer, has improved the anti mechanical impact ability of cable.

Drawings

Fig. 1 shows a schematic structural diagram of an anti-collision strong-shielding intrinsically safe cable according to a preferred embodiment of the present invention.

The reference numbers illustrate:

1-a power line core;

2-a communication wire core;

3-an isolating layer;

4-an outer insulating layer;

5-an outer shielding layer;

6-outer sheath;

7-reinforcing ribs;

31-a metal skeleton;

32-silica gel layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. The features and advantages of the present invention will become more apparent from the description.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The anti-collision strong-shielding intrinsic safety cable provided by the utility model comprises a power wire core 1 and a communication wire core 2,

the power wire core 1 and the communication wire core 2 are positioned in the innermost layer of the cable, and an outer insulating layer 4, an outer shielding layer 5 and an outer sheath 6 are sequentially arranged on the outer side of the power wire core and the communication wire core, as shown in figure 1.

Furthermore, the cross sections of the outer insulating layer 4, the outer shielding layer 5 and the outer sheath 6 are all rectangular-like, and the rectangular cross sections are designed, so that the contact area between the cable and the ground is larger, the cable is not easy to slide, and the cable is convenient to fix.

Furthermore, the rectangular section design also solves the problem of cable spinning and the problem of mutual winding among cables.

The outer shielding layer 5 is formed by weaving copper wires and is used for shielding the interference of an external electromagnetic field to the communication wire core 2.

Oversheath 6 is used for carrying out machinery and electrical protection to the cable, and protection against rodents epidemic is destroyed, prevents that the greasy dirt from corroding the cable and leads to cable ageing etc. in advance, and the concrete material field technical personnel of oversheath 6 can be according to actual demand free choice, the utility model discloses in do not specially limit.

The inventor finds that due to the fact that the cable is designed to be of the rectangular section, compared with the design of the circular section, the tensile strength of different positions on the cable section is different, and the tensile resistance of the rectangular side is weak.

According to the utility model discloses have strengthening rib 7 in the oversheath 6 to improve the holistic tensile strength of cable.

In a preferred embodiment, the reinforcing ribs 7 are provided on the long sides of the rectangular cross section of the outer sheath 6 to improve the tensile strength of the long sides.

In a more preferred embodiment, the reinforcing ribs 7 are arranged in a row along the long side direction on the long side of the outer sheath 6, as shown in fig. 1, the long side of the outer sheath 6 is placed up and down, and the short side is placed left and right, so that when the cable is bent in the up and down directions, the bending amplitude of the reinforcing ribs 7 is smaller, the cable is easier to bend, and when the cable is bent in the left and right directions, the bending amplitude of the reinforcing ribs 7 is larger, and the bending degrees of different reinforcing ribs are different, thereby the cable is made to have stronger rigidity, enhanced retrospective property and is not easy to bend; thereby the effect that the cable one-way is crooked has been realized.

According to the utility model discloses, strengthening rib 7 is the material of high toughness such as steel wire, iron wire, preferably steel wire.

According to the utility model discloses, still be provided with < shape isolation layer 3 in outer insulating layer 4 inboard, the edge of isolation layer 3 links to each other with two long avris of 4 rectangular cross-sections of outer insulating layer to support the cable, protect electric power sinle silk 1 and communication sinle silk 2 in the outer insulating layer 4 simultaneously.

When the cable received the striking, the impact transmitted to isolation layer 3 for isolation layer 3 takes place elastic deformation, and then plays the cushioning effect, avoids the impact direct action on power core 1 and communication sinle silk 2, thereby guarantees the normal use of cable.

Further, the inventor also finds that the design of the shape of the isolation layer 3 also enables the external force required by the deformation of the isolation layer to be small when the cable is bent towards the long side direction of the cable section, and the cable is easy to bend; when the cable is crooked to cable cross-section minor face direction, the isolation layer provides great holding power, and the cable is inflexible to the effect of cable unidirectional bending has been strengthened.

Preferably, the isolation layer 3 is arranged between the power line core 1 and the communication line core 2, the isolation layer 3 comprises a metal framework 31, and a silica gel layer 32 wraps the outer side of the metal framework 31 to isolate the power line core 1 from the communication line core 2.

According to the utility model discloses, through setting up silica gel layer 32, avoid metal framework 31 direct wear and tear outer insulating layer 4.

The inventor finds that power core 1 is mostly formed by twisting a plurality of cores with insulating layers, and communication core 2 generally comprises a conductor, an insulating layer and a shielding layer from inside to outside, and when the cable works actually, power core 1 can generate electromagnetic radiation, and the shielding layer of communication core 2 shields the electromagnetic radiation, thereby avoiding influencing the signal transmitted in communication core 2.

However, when the shielding layer of the communication wire core 2 is damaged or the density of the shielding layer is insufficient, the power wire core 1 still interferes with the communication wire core 2.

The utility model discloses in, metal framework 31 still plays the shielding effect in isolation layer 3, has further guaranteed communication sinle silk 2's signal stability.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", and the like indicate the position or positional relationship based on the operation state of the present invention, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention has been described above in connection with preferred embodiments, which are merely exemplary and illustrative. On this basis, can be right the utility model discloses carry out multiple replacement and improvement, these all fall into the utility model discloses a protection scope.

Claims (5)

1. An anti-collision strong-shielding intrinsic safety cable comprises a power wire core (1) and a communication wire core (2),

the power wire core (1) and the communication wire core (2) are positioned at the innermost layer of the cable, and the outer side of the power wire core and the communication wire core is sequentially provided with an outer insulating layer (4), an outer shielding layer (5) and an outer sheath (6);

the power wire core (1) and the communication wire core (2) are separated by a rectangular isolation layer (3);

the sections of the outer insulating layer (4), the outer shielding layer (5) and the outer sheath (6) are all similar to rectangles;

the outer sheath (6) is internally provided with a reinforcing rib (7), and the reinforcing rib (7) is arranged on the long side of the rectangular section of the outer sheath (6).

2. The anti-collision strong-shielding intrinsically-safe cable of claim 1,

the isolation layer (3) comprises a metal framework (31), and a silica gel layer (32) wraps the outer side of the metal framework (31).

3. The anti-collision strong-shielding intrinsically-safe cable of claim 1,

the edge of the isolation layer (3) is connected with two long side sides of the rectangular section of the outer insulation layer (4) to support the cable.

4. The anti-collision strong-shielding intrinsically-safe cable of claim 1,

the outer shielding layer (5) is formed by weaving copper wires.

5. The anti-collision strong-shielding intrinsically-safe cable of claim 1,

the reinforcing ribs (7) are arranged in a row along the long side direction on the long side of the outer sheath (6).

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