CN209947474U

CN209947474U - Novel high temperature resistant waterproof and moistureproof cable

Info

Publication number: CN209947474U
Application number: CN201920927167.0U
Authority: CN
Inventors: 李付昌
Original assignee: Langfang Da He Wire & Cable Co Ltd
Current assignee: Langfang Da He Wire & Cable Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-01-14
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a novel high temperature resistant dampproofing and waterproofing cable, including cable core, insulating layer and sheath, and the insulating layer parcel is in the outside of cable core, and the sheath parcel is in the outside of insulating layer, and the outside of insulating layer has wrapped the flame retardant coating, fire-retardant around covering, compressive layer, water blocking layer and inflation layer in proper order by inside and outside, and the sheath includes oversheath and inner sheath, and wherein the outside of sheath including the oversheath parcel, and the outer side of inner sheath parcel at the inflation layer. The utility model relates to a rationally, for multilayer composite construction, have good waterproof, dampproofing, fire prevention, high temperature resistant and compressive property, the safety in utilization is high, cable long service life.

Description

Novel high temperature resistant waterproof and moistureproof cable

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to novel high temperature resistant dampproofing and waterproofing cable.

Background

In the rapid development of the present society, the types of cables are distributed variously, and cables of different materials are required to be used in various occasions, and the cables are made of one or more mutually insulated conductors and an outer insulating protective layer, and are used for transmitting electric power or information from one place to a wire of another place. The power cable on the market at present is too simple in structure, and under the condition of high temperature or high humidity, the cable is easy to age under the influence of environmental conditions, and is easy to generate electric leakage and short circuit, and the safety performance is poor, and the service life of the cable is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel high temperature resistant dampproofing and waterproofing cable to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel high temperature resistant dampproofing and waterproofing cable, includes cable core, insulating layer and sheath, and the insulating layer parcel is in the outside of cable core, and the sheath parcel lies in the outside of insulating layer, and its structural feature lies in: the outside parcel of insulating layer has the flame retardant coating, the outside parcel of flame retardant coating has fire-retardant around the covering, fire-retardant outside parcel around the covering has the compressive layer, the outside parcel on compressive layer has the water blocking layer, the outside parcel on water blocking layer has the inflation layer, the sheath includes oversheath and inner sheath, wherein the outside of sheath including the oversheath parcel, and the inner sheath parcel is in the outside of inflation layer, the outside of inner sheath is equipped with the recess of several array arrangement, and the recess intussuseption is filled with the water absorbent, the oversheath is equipped with the through-hole of array arrangement.

Preferably, the cross section of the pressure-resistant layer is in a corrugated structure, wherein the pressure-resistant layer comprises a plurality of wave crest portions and wave trough portions which are connected end to end, and the cross sections of the wave crest portions and the wave trough portions are in an omega-shaped structure.

Preferably, the pressure resistant layer is a metal mesh structure.

Preferably, the expansion layer consists of a plurality of water absorption expansion strips and fireproof expansion strips which are uniformly distributed along the circumferential direction and are alternately arranged.

Preferably, a waterproof breathable layer is arranged between the outer sheath and the inner sheath, and the waterproof breathable layer is made of a waterproof breathable film.

Preferably, the water absorbent is absorbent cotton.

Preferably, the through hole is in a horn shape with a narrow outer part and a wide inner part.

Compared with the prior art, the utility model has the advantages that the design is reasonable, the outer sheath and the inner sheath are arranged to form a multilayer composite structure, double-layer protection can be carried out on the cable core, when the outer sheath cracks, the waterproof and breathable layer has a primary water-blocking effect, the water absorbent can absorb the humid air permeating from the cracks, and meanwhile, the water absorbent is arranged in the groove, so that the overlarge diffusion area of the water absorbent after water absorption can be avoided, in addition, the outer sheath is provided with the through hole with the narrow outer part and the wide inner part, and the evaporation of the water in the water absorbent can be facilitated after the; the expansion layer is arranged, the water-absorbing expansion strips in the expansion layer expand after absorbing moisture to block the cracks of the inner sheath, the water-blocking layer is arranged to further block water outside the cable core, the electric leakage short circuit of the cable can be well prevented, the cable can still work well in a humid environment, the fireproof expansion strips in the expansion layer expand in a fire state to block the cracks of the inner sheath, the cable core can be prevented from being burnt, and the use safety is improved; set up the resistance to compression layer, the cross-section of resistance to compression layer is the wavy structure, and wherein the resistance to compression layer includes crest portion and trough portion that the several end to end is connected, and the cross-section in crest portion and trough portion all is omega column structure, and when receiving external force, crest portion and trough portion all can buffer well and dispersed stress, avoid crushing the cable core, the life of extension cable.

Drawings

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

in the figure: the cable comprises a cable core 1, an insulating layer 2, a fireproof layer 3, a flame-retardant wrapping layer 4, a compression-resistant layer 5, a water-resistant layer 6, an expansion layer 7, an outer sheath 8, an inner sheath 9, a groove 10, a through hole 11, a crest portion 12, a trough portion 13, a water-absorbing expansion strip 14, a fireproof expansion strip 15 and a waterproof breathable layer 16.

Detailed Description

The invention is further explained with reference to the drawings, without limiting the scope of protection of the invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", 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 referred to 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.

Referring to fig. 1, the utility model provides a technical scheme, a novel high temperature resistant waterproof and moistureproof cable, which comprises a cable core 1, an insulating layer 2 and a sheath, wherein the insulating layer 2 wraps the outside of the cable core 1, the sheath wraps the outside of the insulating layer 2, the outside of the insulating layer 2 wraps a fireproof layer 3, the outside of the fireproof layer 3 wraps a flame retardant wrapping layer 4, the outside of the flame retardant wrapping layer 4 wraps a pressure resistant layer 5, the outside of the pressure resistant layer 5 wraps a water resistant layer 6, the outside of the water resistant layer 6 wraps an expansion layer 7, the sheath comprises an outer sheath 8 and an inner sheath 9, wherein the outer sheath 8 wraps the outside of the inner sheath 9, the inner sheath 9 wraps the outside of the expansion layer 7, the outer side of the inner sheath 9 is provided with a plurality of grooves 10 arranged in an array, and the grooves 10 are filled with a water absorbent, the outer sheath 9 is provided with through holes 11 arranged in an array.

In this embodiment, the cross section of the compression-resistant layer 5 is of a corrugated structure, wherein the compression-resistant layer 5 includes a plurality of peak portions 12 and valley portions 13 connected end to end, and the cross sections of the peak portions 12 and the valley portions 13 are both of an Ω -shaped structure.

In this embodiment, the compression-resistant layer 5 is a metal mesh structure, so as to reduce the weight of the cable.

In this embodiment, the expansion layer 7 is composed of a plurality of water-absorbing expansion strips 14 and fire-proof expansion strips 15 which are uniformly distributed and alternately arranged along the circumferential direction.

In this embodiment, a waterproof and breathable layer 16 is disposed between the outer sheath 8 and the inner sheath 9, and the waterproof and breathable layer 16 is made of a waterproof and breathable film.

In the embodiment, the water absorbent is absorbent cotton.

In this embodiment, the through hole 11 is in a horn shape with a narrow outside and a wide inside.

The utility model relates to a rationally, for multilayer composite construction, set up oversheath 8 and inner sheath 9 and can carry out double-deck protection to the cable core, when oversheath 8 appears the crack, waterproof ventilative layer 16 has preliminary water blocking effect, the water absorbent can be with the humid air absorption that permeates into from the crack, the water absorbent is located in recess 10 simultaneously, can avoid the water absorbent to absorb water after the diffusion area too big, in addition oversheath 8 is equipped with outer narrow inside wide through-hole 11, can be favorable to the evaporation of moisture in the water absorbent after external moisture disappears; the expansion layer 7 is arranged, the water absorption expansion strips 14 in the expansion layer 7 expand after absorbing moisture to block the cracks of the inner sheath 9, the water blocking layer is arranged to further block water on the outer side of the cable core 1, the situation of electric leakage short circuit of the cable can be well prevented, the cable can still work normally in a humid environment, the fireproof expansion strips 15 in the expansion layer 7 expand in a fire state to block the cracks of the inner sheath 9, the cable core 1 can be prevented from being burnt, and the use safety is improved; set up anti pressure layer 5, the cross-section of anti pressure layer 5 is the corrugated structure, and wherein anti pressure layer 5 includes crest portion 12 and trough portion 13 that the several end to end is connected, and the cross-section of crest portion 12 and trough portion 13 all is omega column structure, and when receiving external force, crest portion 12 and trough portion 13 all can cushion well and dispersed stress, avoid crushing cable core 1, the life of extension cable.

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, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel high temperature resistant dampproofing and waterproofing cable, includes cable core, insulating layer and sheath, and the insulating layer parcel is in the outside of cable core, and the sheath parcel is in the outside of insulating layer, its characterized in that: the outside parcel of insulating layer have the flame retardant coating, the outside parcel of flame retardant coating have fire-retardant around the covering, fire-retardant outside parcel around the covering have the compressive layer, the outside parcel of compressive layer have the water blocking layer, the outside parcel of water blocking layer have the inflation layer, the sheath include oversheath and inner sheath, wherein the outside of sheath including the oversheath parcel, and the outer side of inner sheath parcel at the inflation layer, the outside of inner sheath be equipped with the recess that the several array was arranged, and the recess intussuseption is filled with the water absorbent, the oversheath be equipped with the through-hole of array arrangement.

2. The novel high-temperature-resistant waterproof and moistureproof cable according to claim 1, wherein: the cross section of the pressure-resistant layer is of a corrugated structure, wherein the pressure-resistant layer comprises a plurality of wave crest portions and wave trough portions which are connected end to end, and the cross sections of the wave crest portions and the wave trough portions are of omega-shaped structures.

3. The novel high-temperature-resistant waterproof and moistureproof cable according to claim 1, wherein: the anti-pressure layer is of a metal net structure.

4. The novel high-temperature-resistant waterproof and moistureproof cable according to claim 1, wherein: the expansion layer consists of a plurality of water absorption expansion strips and fireproof expansion strips which are uniformly distributed along the circumferential direction and are alternately arranged.

5. The novel high-temperature-resistant waterproof and moistureproof cable according to claim 1, wherein: and a waterproof breathable layer is arranged between the outer sheath and the inner sheath and is made of a waterproof breathable film.

6. The novel high-temperature-resistant waterproof and moistureproof cable according to claim 1, wherein: the water absorbent is absorbent cotton.

7. The novel high-temperature-resistant waterproof and moistureproof cable according to claim 1, wherein: the through hole is in a horn shape with a narrow outer part and a wide inner part.