CN214012577U

CN214012577U - Impact-resistant oxidation-resistant waterproof cable

Info

Publication number: CN214012577U
Application number: CN202120197804.0U
Authority: CN
Inventors: 王振金
Original assignee: Hunan Valin Wire and Cable Co Ltd
Current assignee: Hunan Valin Wire and Cable Co Ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-08-20
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses an impact-resistant oxidation-resistant waterproof cable, which comprises a sheath layer, a foamed ceramic impact-resistant layer, a waterproof layer, a filling layer and a plurality of cable core units, which are arranged in sequence from outside to inside; the cable core unit is sequentially provided with an oxidation resistant layer, a mica tape insulating layer and a conductor from outside to inside; the cable core unit is isolated by a separation frame, the separation frame comprises a central support body and separation sheets uniformly distributed around the central support body, a pressure-bearing hole is formed in the center of the central support body, and the filling layer is filled between the cable core unit and the waterproof layer. The waterproof layer comprises a polyester fiber non-woven fabric layer and a high-density polyethylene film layer. The polyester fiber non-woven fabric layer and the high-density polyethylene film layer are alternately lapped, and the lapping overlapping rate is 60%. The sheath layer is formed by extruding phthalic acid polyurethane and hydrogenated nitrile butadiene rubber. The thickness of the sheath layer is 3-5 mm. And a wear-resistant layer is also arranged outside the sheath layer. The produced cable has strong impact resistance.

Description

Impact-resistant oxidation-resistant waterproof cable

Technical Field

The utility model relates to a cable field especially relates to an anti-oxidation waterproof cable of nai impact.

Background

In the daily life and working environment, the wires and cables are visible everywhere, so that the electric wire and cable not only provide illumination and power for people, but also are indispensable in the field of information and data transmission, and play an important role. The cable is in the form of hanging, stretching and the like, and the field framework or the majority of the cable is laid in tunnels, ditches, cable wells, vertical shafts and wire grooves. The cable can be impacted when overhauing or running into animals or other flying objects in the nature because of long-time work, can produce electric arc because of the trouble, in sunshine insolate or dark moist and high temperature environment for a long time, the easy oxidation fracture of outermost restrictive coating, building, interior decoration all can have the danger of taking place the conflagration on every side. The cables in the cable well, the tunnel, the ditch, the vertical shaft and the wire slot are narrow and closed in space, so that once the cables catch fire, heat accumulated in the cables and generated by combustion can be quickly released, a chimney effect is easily formed, the fire spreads along the cables, the whole cable laying area of the combustion is wide in spread range, huge economic loss is caused, life and property safety of people is threatened, and environmental pollution is caused. I designed an impact-resistant oxidation-resistant waterproof cable before, which comprises a sheath layer, a foamed ceramic impact-resistant layer, a waterproof layer, a filling layer and a plurality of cable core units, wherein the sheath layer, the foamed ceramic impact-resistant layer, the waterproof layer, the filling layer and the plurality of cable core units are sequentially arranged from outside to inside; the cable core unit is sequentially provided with an oxidation resistant layer, a mica tape insulating layer and a conductor from outside to inside; the waterproof and oxidation resistance is improved mainly by material improvement, and the impact resistance is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti oxidation waterproof cable of nai assault to solve the poor problem of cable shock resistance.

In order to achieve the above object, the utility model provides a following technical scheme: an impact-resistant oxidation-resistant waterproof cable comprises a sheath layer, a foamed ceramic impact-resistant layer, a waterproof layer, a filling layer and a plurality of cable core units, wherein the sheath layer, the foamed ceramic impact-resistant layer, the waterproof layer, the filling layer and the plurality of cable core units are sequentially arranged from outside to inside; the cable core unit is sequentially provided with an oxidation resistant layer, a mica tape insulating layer and a conductor from outside to inside; the cable core unit is isolated by a separation frame, the separation frame comprises a central support body and separation sheets uniformly distributed around the central support body, a pressure-bearing hole is formed in the center of the central support body, and the filling layer is filled between the cable core unit and the waterproof layer.

As a further improvement of the above technical solution:

the waterproof layer comprises a polyester fiber non-woven fabric layer and a high-density polyethylene film layer.

The polyester fiber non-woven fabric layer and the high-density polyethylene film layer are alternately lapped, and the lapping overlapping rate is 60%.

The sheath layer is formed by extruding phthalic acid polyurethane and hydrogenated nitrile butadiene rubber.

The thickness of the sheath layer is 3-5 mm. The thicker the sheath thickness, the better the impact resistance, but the corresponding cost and weight increase.

And a wear-resistant layer is also arranged outside the sheath layer. The wear layer may improve the impact resistance of the cable.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an anti-shock anti-oxidation waterproof cable separates the cable core unit through setting up the bank of branch, divide bank of branch and filling layer to combine to protect the cable core unit, can effectively reduce external shock, when receiving the extrusion, the pressure-bearing hole can warp and play the cushioning effect, the waterproof layer adopts polyester fiber non-woven fabrics layer and high density polyethylene film layer alternately around the package, waterproof performance is good, the restrictive coating material adopts phthalic acid polyurethane and hydrogenated nitrile rubber combination, its oxidation resistance is strong, the oversheath is provided with the wearing layer outward and protects the cable is inside, can improve the shock resistance of cable.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention.

Reference numerals: 1. a sheath layer; 2. a foamed ceramic impact resistant layer; 3. a waterproof layer; 31. a polyester fiber non-woven fabric layer; 32. a high density polyethylene film layer; 4. a filling layer; 5. a cable core unit; 51. an oxidation resistant layer; 52. a mica tape insulating layer; 53. a conductor; 6. a spacer; 61. a central support; 62. a separator; 63. a pressure-bearing hole; 7. and a wear-resistant layer.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between 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 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.

Example 1

As shown in fig. 1 and fig. 2, the impact-resistant, oxidation-resistant and waterproof cable of the present embodiment includes a sheath layer 1, a foamed ceramic impact-resistant layer 2, a waterproof layer 3, a filling layer 4, and a plurality of cable core units 5, which are sequentially disposed from outside to inside; the cable core unit 5 is sequentially provided with an oxidation resistant layer 51, a mica tape insulating layer 52 and a conductor 53 from outside to inside; the cable core unit 5 is isolated by a separation frame 6, the separation frame 6 comprises a central support body 61 and separation sheets 62 uniformly arranged around the central support body 61, a pressure bearing hole 63 is formed in the center of the central support body 61, and the filling layer 4 is filled between the cable core unit 5 and the waterproof layer 3.

The waterproof layer 3 includes a polyester fiber nonwoven fabric layer 31 and a high-density polyethylene film layer 32.

The polyester fiber non-woven fabric layer 31 and the high-density polyethylene film layer 32 are alternately lapped, and the lapping overlapping rate is 60%.

The sheath layer 1 is formed by extruding phthalic acid polyurethane and hydrogenated nitrile butadiene rubber.

The extrusion thickness of the sheath layer 1 is 3 mm.

The jacket layer 1 is also provided with a wear-resistant layer 7.

Example 2

The impact-resistant oxidation-resistant waterproof cable comprises a sheath layer 1, a foamed ceramic impact-resistant layer 2, a waterproof layer 3, a filling layer 4 and a plurality of cable core units 5 which are sequentially arranged from outside to inside; the cable core unit 5 is sequentially provided with an oxidation resistant layer 51, a mica tape insulating layer 52 and a conductor 53 from outside to inside; the cable core unit 5 is isolated by a separation frame 6, the separation frame 6 comprises a central support body 61 and separation sheets 62 uniformly arranged around the central support body 61, a pressure bearing hole 63 is formed in the center of the central support body 61, and the filling layer 4 is filled between the cable core unit 5 and the waterproof layer 3.

The extrusion thickness of the sheath layer 1 is 4 mm.

The jacket layer 1 is also provided with a wear-resistant layer 7.

Example 3

The sheath layer 1 is formed by extruding phthalic acid polyurethane and hydrogenated nitrile butadiene rubber. The extrusion thickness of the sheath layer 1 is 5 mm.

The jacket layer 1 is also provided with a wear-resistant layer 7.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An impact-resistant oxidation-resistant waterproof cable comprises a sheath layer (1), a foamed ceramic impact-resistant layer (2), a waterproof layer (3), a filling layer (4) and a plurality of cable core units (5) which are sequentially arranged from outside to inside; the cable core unit (5) is sequentially provided with an oxidation resistant layer (51), a mica tape insulating layer (52) and a conductor (53) from outside to inside; the method is characterized in that: the cable core unit (5) is isolated by a separation frame (6), the separation frame (6) comprises a central support body (61) and separation sheets (62) which are uniformly distributed around the central support body (61), a pressure bearing hole (63) is formed in the center of the central support body (61), and the filling layer (4) is filled between the cable core unit (5) and the waterproof layer (3).

2. The impact resistant, oxidation resistant and water resistant cable of claim 1 wherein: the waterproof layer (3) comprises a polyester fiber non-woven fabric layer (31) and a high-density polyethylene film layer (32).

3. The impact resistant, oxidation resistant and water resistant cable of claim 2 wherein: the polyester fiber non-woven fabric layer (31) and the high-density polyethylene film layer (32) are alternately lapped, and the lapping overlapping rate is 60%.

4. The impact resistant, oxidation resistant and water resistant cable of claim 3 wherein: the sheath layer (1) is formed by extruding phthalic acid polyurethane and hydrogenated nitrile rubber.

5. The impact resistant, oxidation resistant and water resistant cable of claim 4 wherein: the thickness of the sheath layer (1) is 3-5 mm.

6. The impact resistant, oxidation resistant and water resistant cable of claim 5 wherein: the sheath layer (1) is also provided with a wear-resistant layer (7).