CN212365571U

CN212365571U - Copper core copper sheath magnesium oxide insulated cable

Info

Publication number: CN212365571U
Application number: CN202020855527.3U
Authority: CN
Inventors: 梁旭斌
Original assignee: JIANGSU YUANDA CABLE CO Ltd
Current assignee: JIANGSU YUANDA CABLE CO Ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-01-15
Anticipated expiration: 2030-05-21

Abstract

The utility model provides a copper core copper sheath magnesium oxide insulated cable, which relates to the field of cable wires and solves the problem that the whole anti-bending capability of the cable wires cannot be realized through diversified structural coordination, namely a plurality of reinforced friction structures; the problem of the simplification of peeling can not be realized through the improvement on the structure of the outer skin during maintenance. A copper core copper sheath magnesium oxide insulated cable comprises an outer protective layer; the inner side of the outer protective layer is sleeved with an anti-corrosion layer, and the inner side of the anti-corrosion layer is sleeved with an inner protective layer. Because of four rectangle blocks rubber are pegged graft respectively in the clearance of four cables, and four rectangle blocks rubber all are the rectangle array form with the cable conductor contact surface and are provided with non-skid protrusion B to non-skid protrusion B and four cable conductor crust contacts, thereby can further improve the anti-bending ability of this device through the friction of protection arch B and cable conductor crust.

Description

Copper core copper sheath magnesium oxide insulated cable

Technical Field

The utility model belongs to the technical field of the cable conductor, more specifically say, in particular to copper core copper sheathing magnesium oxide insulated cable.

Background

The following requirements are provided for the fireproof cable in the field of fire protection of buildings: 1. the fireproof performance is high; 2. corrosion resistance, namely, the paint is not easy to age and rust; 3. the bending resistance is strong.

As in application No.: CN201220177441.5, the utility model discloses a magnesium hydrate insulation fireproof cable contains a plurality of copper core conductors and the copper sheath of cover on a plurality of copper core conductors, its characterized in that it has magnesium hydrate in order to constitute the insulating layer to fill between copper core conductor and the copper sheath. The beneficial effects of the utility model are embodied in: 1. the fireproof performance is good; 2. it is smokeless and nontoxic when burning. Because the insulating layer is filled with magnesium hydroxide, no harmful gas is generated during combustion, secondary pollution is avoided, and the composite material belongs to an environment-friendly product. 3. Corrosion resistance, namely, the corrosion inhibitor is not easy to age and rust. The copper sheath does not need to be threaded through the tube. 4. And no electromagnetic interference exists. Under the shielding of the copper sheath, the interference to signals and signals transmitted by the control wires and cables can not be generated. 5. Large heat dissipation area, long continuous length and good bending property.

Similar to the magnesium oxide insulated cable of the above-mentioned application, there are also the following disadvantages:

one is that the bending resistance is poor, and the existing device can not realize the integral bending resistance of the cable through diversified structural matching, namely a plurality of reinforced friction structures; moreover, the conventional device cannot facilitate peeling by improving the structure of the outer skin during maintenance.

Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a copper core and copper sheath magnesium oxide insulated cable is provided to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a copper core copper sheath magnesium oxide insulated cable, which aims to solve the problems that the existing one is poor in anti-bending capability, and the existing device can not realize the integral anti-bending capability of the cable through diversified structural coordination, namely multiple enhanced friction structures; further, the conventional apparatus cannot facilitate peeling by improving the structure of the outer skin during maintenance.

The utility model relates to a purpose and efficiency of copper core copper sheath magnesium oxide insulated cable are reached by following concrete technological means:

a copper core and copper sheath magnesium oxide insulated cable comprises an outer protective layer, a thin steel core A and a thin steel core B; the inner side of the outer protective layer is sleeved with an anti-corrosion layer, and the inner side of the anti-corrosion layer is sleeved with an inner protective layer; the number of the thin steel cores A is three, and the three thin steel cores A are all inserted between the outer protection layer and the anti-corrosion layer; the number of the thin steel cores B is three, and the three thin steel cores B are all inserted between the anti-corrosion layer and the inner protection layer; four cables are sleeved in the inner protective layer in an annular array shape, a steel core is arranged between the four cables, and four rectangular rubber blocks are welded on the inner wall of the inner protective layer in an annular array shape.

Further, the outer wall of the outer protection layer is provided with three placing grooves A; the outer wall and the inner wall of the anti-corrosion layer are both provided with three placing grooves B; the outer wall of the inner protective layer is provided with four placing grooves C, thin steel cores A are inserted between the placing grooves A and the placing grooves B, and the thin steel cores B are inserted in the placing grooves C; the placing groove A, the placing groove B and the placing groove C are aligned with three cables in the four cables, the outer wall of the thin steel core A is coated with red marks, and the outer wall of the thin steel core B is coated with green marks.

Further, the placing groove A, the placing groove B and the placing groove C are all V-shaped groove structures.

Further, the steel core includes anti-skidding arch A, the steel core outer wall is the welding of rectangle array form and has anti-skidding arch A, and anti-skidding arch A and four contact of cable conductor crust.

Further, the rectangular rubber blocks comprise anti-skid protrusions B, the number of the rectangular rubber blocks is four, the rectangular rubber blocks are respectively inserted into gaps of the four cables, the four rectangular rubber blocks and contact surfaces of the cables are rectangular array-shaped anti-skid protrusions B, and the anti-skid protrusions B are in contact with outer skins of the four cables.

Further, the rectangular rubber block further comprises a clamping groove, the rectangular rubber block is in a rectangular array shape with the contact surface of the steel core, the clamping groove is aligned with the anti-skid protrusion A, and the clamping groove is clamped with the anti-skid protrusion A.

Compared with the prior art, the utility model discloses following beneficial effect has:

the inoxidizing coating structure has been improved, can assist the judgement that realizes the cable conductor through the improvement, and can be more swift convenient when peeling off the crust to can improve whole bending resistance ability through the structure cooperation of pluralism, specifically as follows: firstly, the placing grooves A, B and C are all V-shaped groove structures, so that the outer protective layer, the anti-corrosion layer and the inner protective layer can be stripped more conveniently; secondly, the placing groove A, the placing groove B and the placing groove C are aligned with three cables in the four cables, red marks are coated on the outer wall of the thin steel core A4, and green marks are coated on the outer wall of the thin steel core B5, so that the cable type structure can be judged at another position except the cable sheath color during maintenance; thirdly, as the outer wall of the steel core is welded with the anti-skid protrusions A in a rectangular array shape, and the anti-skid protrusions A are in contact with the outer skins of the four cables, the anti-bending capacity of the device can be improved through the friction between the anti-skid protrusions A and the outer skins of the cables; fourthly, the four rectangular rubber blocks are respectively inserted into the gaps of the four cables, and the contact surfaces of the four rectangular rubber blocks and the cables are all provided with the anti-skid protrusions B in a rectangular array shape, and the anti-skid protrusions B are in contact with the four cable sheaths, so that the bending resistance of the device can be further improved through the friction between the protection protrusions B and the cable sheaths; fifthly, the rectangular rubber blocks are in rectangular array shape with the contact surfaces of the steel cores, the clamping grooves are aligned with the anti-skid protrusions A, and the clamping grooves are clamped with the anti-skid protrusions A, so that the anti-bending capacity of the device can be improved again.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is a schematic axial view of the present invention in another direction shown in fig. 1.

Fig. 3 is a schematic sectional structure diagram of the present invention.

Fig. 4 is an enlarged schematic view of the structure of fig. 3 according to the present invention.

Fig. 5 is an enlarged schematic view of the present invention at B of fig. 3.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. an outer protective layer; 101. placing the groove A; 2. an anti-corrosion layer; 201. a placing groove B; 3. an inner protective layer; 301. placing the groove C; 4. a thin steel core A; 5. a fine steel core B; 6. a cable wire; 7. a steel core; 701. an anti-slip bulge A; 8. a rectangular rubber block; 801. An anti-slip bulge B; 802. a clamping groove.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like 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 "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 5:

the utility model provides a copper core copper sheath magnesium oxide insulated cable, which comprises an outer protective layer 1, a thin steel core A4 and a thin steel core B5; the inner side of the outer protective layer 1 is sleeved with an anti-corrosion layer 2, and the inner side of the anti-corrosion layer 2 is sleeved with an inner protective layer 3; the number of the thin steel cores A4 is three, and the three thin steel cores A4 are all inserted between the outer protection layer 1 and the anti-corrosion layer 2; the number of the thin steel cores B5 is three, and the three thin steel cores B5 are all inserted between the anti-corrosion layer 2 and the inner protection layer 3; four cables 6 are sleeved in the inner protection layer 3 in an annular array shape, a steel core 7 is arranged between the four cables 6, and four rectangular rubber blocks 8 are welded on the inner wall of the inner protection layer 3 in an annular array shape.

Referring to fig. 3, the outer wall of the outer protective layer 1 is provided with three placing grooves a 101; the outer wall and the inner wall of the anti-corrosion layer 2 are both provided with three placing grooves B201; four placing grooves C301 are formed in the outer wall of the inner protection layer 3, a thin steel core A4 is inserted between the placing groove A101 and the placing groove B201, and a thin steel core B5 is inserted in the placing grooves C301; the placing groove A101, the placing groove B201 and the placing groove C301 are aligned with three cables 6 of the four cables 6, the outer wall of the thin steel core A4 is coated with a red mark, and the outer wall of the thin steel core B5 is coated with a green mark, so that the cable 6 type structure can be judged at another place except the color of the outer skin of the cable 6 during maintenance.

Referring to fig. 4, the placing groove a101, the placing groove B201, and the placing groove C301 are all V-shaped groove structures, so that it is more convenient when the outer protective layer 1, the corrosion resistant layer 2, and the inner protective layer 3 are stripped.

Referring to fig. 3 and 5, the steel core 7 includes the anti-skid protrusions a701, the anti-skid protrusions a701 are welded on the outer wall of the steel core 7 in a rectangular array, and the anti-skid protrusions a701 are in contact with the outer skins of the four cables 6, so that the bending resistance of the device can be improved by the friction between the anti-skid protrusions a701 and the outer skins of the cables 6.

Referring to fig. 3 and 5, the rectangular rubber block 8 comprises anti-skid protrusions B801, the four rectangular rubber blocks 8 are respectively inserted into the gaps of the four cables 6, the anti-skid protrusions B801 are arranged on the contact surfaces of the four rectangular rubber blocks 8 and the cables 6 in a rectangular array, and the anti-skid protrusions B801 are in contact with the outer skins of the four cables 6, so that the bending resistance of the device can be further improved through the friction between the protection protrusions B and the outer skins of the cables 6.

Referring to fig. 5, the rectangular rubber block 8 further includes a clamping groove 802, the contact surface between the rectangular rubber block 8 and the steel core 7 is in a rectangular array shape, the clamping groove 802 is disposed in alignment with the anti-skid protrusion a701, and the clamping groove 802 is clamped with the anti-skid protrusion a701, so that the anti-bending capability of the device can be improved again.

The specific use mode and function of the embodiment are as follows:

when the device is used, when the device needs to be stripped and maintained, the placing groove A101, the placing groove B201 and the placing groove C301 are all in V-shaped groove structures, so that the outer protective layer 1, the anti-corrosion layer 2 and the inner protective layer 3 can be stripped more conveniently;

in the use process, firstly, the placing groove A101, the placing groove B201 and the placing groove C301 are aligned with three cables 6 in the four cables 6, the outer wall of the thin steel core A4 is coated with a red mark, and the outer wall of the thin steel core B5 is coated with a green mark, so that the cable 6 type structure can be judged at another position except the color of the outer skin of the cable 6 during maintenance; secondly, anti-skid protrusions A701 are welded on the outer wall of the steel core 7 in a rectangular array shape, and the anti-skid protrusions A701 are in contact with the outer skins of the four cables 6, so that the bending resistance of the device can be improved through friction between the anti-skid protrusions A701 and the outer skins of the cables 6; thirdly, as the four rectangular rubber blocks 8 are respectively inserted into the gaps of the four cables 6, the contact surfaces of the four rectangular rubber blocks 8 and the cables 6 are respectively provided with the anti-skid protrusions B801 in a rectangular array shape, and the anti-skid protrusions B801 are in contact with the outer skins of the four cables 6, the anti-bending capability of the device can be further improved through the friction between the protection protrusions B and the outer skins of the cables 6; fourthly, the rectangular rubber block 8 and the steel core 7 are in a rectangular array shape, the clamping grooves 802 are formed in the contact surface, the positions of the clamping grooves 802 and the anti-skid protrusions A701 are aligned, the clamping grooves 802 and the anti-skid protrusions A701 are clamped, and therefore the anti-bending capacity of the device can be improved again.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a copper core copper sheath magnesium oxide insulated cable which characterized in that: comprises an outer protective layer (1), a thin steel core A (4) and a thin steel core B (5); the inner side of the outer protection layer (1) is sleeved with an anti-corrosion layer (2), and the inner side of the anti-corrosion layer (2) is sleeved with an inner protection layer (3); the number of the thin steel cores A (4) is three, and the three thin steel cores A (4) are all inserted between the outer protection layer (1) and the anti-corrosion layer (2); the number of the thin steel cores B (5) is three, and the three thin steel cores B (5) are all inserted between the anti-corrosion layer (2) and the inner protection layer (3); four cable wires (6) are sleeved in the inner protection layer (3) in an annular array shape, a steel core (7) is arranged between the four cable wires (6), and four rectangular rubber blocks (8) are welded on the inner wall of the inner protection layer (3) in an annular array shape.

2. The copper-core copper-sheath magnesium oxide insulated cable according to claim 1, characterized in that: the upper outer wall of the outer protection layer (1) is provided with three placing grooves A (101); the outer wall and the inner wall of the anti-corrosion layer (2) are provided with three placing grooves B (201); four placing grooves C (301) are formed in the outer wall of the inner protection layer (3), a thin steel core A (4) is inserted between the placing groove A (101) and the placing groove B (201), and a thin steel core B (5) is inserted in the placing grooves C (301); the placing groove A (101), the placing groove B (201) and the placing groove C (301) are aligned with three cables (6) in the four cables (6), the outer wall of the thin steel core A (4) is coated with red marks, and the outer wall of the thin steel core B (5) is coated with green marks.

3. The copper-core copper-sheath magnesium oxide insulated cable according to claim 2, wherein: the placing groove A (101), the placing groove B (201) and the placing groove C (301) are all in a V-shaped groove structure.

4. The copper-core copper-sheath magnesium oxide insulated cable according to claim 1, characterized in that: the steel core (7) comprises anti-skid protrusions A (701), the anti-skid protrusions A (701) are welded on the outer wall of the steel core (7) in a rectangular array shape, and the anti-skid protrusions A (701) are in skin contact with the four cables (6).

5. The copper-core copper-sheath magnesium oxide insulated cable according to claim 1, characterized in that: the rectangular rubber blocks (8) comprise anti-skid protrusions B (801), the number of the rectangular rubber blocks (8) is four, the rectangular rubber blocks (8) are respectively inserted into gaps of the four cables (6), the contact surfaces of the four rectangular rubber blocks (8) and the cables (6) are all provided with the anti-skid protrusions B (801) in a rectangular array shape, and the anti-skid protrusions B (801) are in contact with outer skins of the four cables (6).

6. The copper-core copper-sheath magnesium oxide insulated cable according to claim 1, characterized in that: the rectangular rubber block (8) further comprises a clamping groove (802), the rectangular rubber block (8) and the steel core (7) are in a rectangular array shape, the clamping groove (802) is formed in the contact surface, the clamping groove (802) is aligned with the anti-skid protrusion A (701) in position, and the clamping groove (802) is clamped with the anti-skid protrusion A (701) in a clamping mode.