CN211604770U

CN211604770U - Novel power cable structure with good flame-retardant effect

Info

Publication number: CN211604770U
Application number: CN202020508905.0U
Authority: CN
Inventors: 刘炳强; 张则功; 曲业华; 鲁维美
Original assignee: Qingdao Huaqiang Cable Co ltd
Current assignee: Qingdao Huaqiang Cable Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-09-29
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses a novel power cable structure that flame retardant efficiency is good, including the outer protective layer, the outer protective layer is cylindric, outer protective layer inner wall rigid coupling has the first fire-retardant layer of cylindric, first fire-retardant in situ wall rigid coupling has cylindric waterproof layer, waterproof layer inner wall rigid coupling has cylindric elastic layer, elastic layer inner wall rigid coupling has cylindric first insulation layer, the elastic layer includes the drum, upward be equipped with down the drum in the drum, it has the spring to go up the drum inner wall distribution, the spring other end all with drum outer wall rigid coupling down, first insulation in situ wall rigid coupling has cylindric fixed bed, fixed bed inner wall rigid coupling has cylindric fixed pipe, it is triangle-shaped and is equipped with three cable cores in the fixed pipe. The utility model discloses simple structure, convenient to use, the effectual refractiveness, the insulating nature of the cable that has improved, convenient to use.

Description

Novel power cable structure with good flame-retardant effect

Technical Field

The utility model relates to a power cable technical field especially relates to a novel good power cable structure of flame retardant efficiency.

Background

At present, the wire and cable are used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion. A wire cable in a broad sense, also referred to as a cable for short, refers to an insulated cable, which can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer jackets, the cable may also have additional conductors without insulation. With the development of economy, places needing to use the power cable become diversified, the performance indexes of the power cable are required to be various, for example, the indexes such as tensile strength, use temperature, aging resistance, flame retardant property and the like are strictly required, the comprehensive performance of the power cable is continuously improved, and the method is an urgent need for economic and social development. The cable is many erect in the air or adorn underground, submarine for telecommunication or power transmission, current cable insulating nature is poor, flame retardant efficiency is not good, fire resistance is poor, easy burning, easily produce a large amount of smog and hydrogen halide gas during the burning, easily cause the equipment damage, it is more likely to bring very big hindrance to personnel's safe evacuation and fire control when firing, current cable easily receives external force influence deformation simultaneously, easily make the internal conductor warp the fracture, influence the use of cable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the power cable structure that a neotype flame retardant efficiency is good that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel good power cable structure of flame retardant efficiency, includes the outer protective layer, the outer protective layer is cylindric, outer protective layer inner wall rigid coupling has the first fire-retardant layer of cylindric, first fire-retardant layer inner wall rigid coupling has cylindric waterproof layer, waterproof layer inner wall rigid coupling has cylindric elastic layer, elastic layer inner wall rigid coupling has cylindric first insulation layer, first insulation layer inner wall rigid coupling has cylindric fixed bed, fixed bed inner wall rigid coupling has cylindric fixed pipe, it is triangle-shaped and is equipped with three cable cores in the fixed pipe.

Preferably, the outer protection layer is made of silicon rubber, circular through holes are longitudinally distributed in one side face of the outer protection layer, and reinforcing ribs are inserted into each through hole.

Preferably, the inner wall of the fixed layer is distributed with rectangular fixed grooves, the outer wall of the fixed pipe is distributed with rectangular fixed blocks, and each fixed block is positioned in the corresponding fixed groove.

Preferably, a cylindrical second insulating layer wraps the outer side of the cable core, and a cylindrical protective pipe wraps the outer side of the second insulating layer.

Preferably, the fixed tube internal distribution has circular shape fixed disk, and every fixed disk surface all with fixed intraductal wall rigid coupling, all is equipped with the fire-retardant layer of second between per two adjacent fixed disks, and every protective tube all is located the fire-retardant in layer of second, it is triangle-shaped and is equipped with three fixed orifices on the fixed disk, and every cable core all is located the fixed orifices that corresponds, and every protective tube all with the fixed orifices inner wall rigid coupling that corresponds.

Preferably, rectangular notches are distributed on the inner wall of the fixing hole, rectangular limiting plates are distributed on the outer wall of the protective pipe, and each limiting plate is located in the corresponding notch.

Preferably, the elastic layer comprises an upper cylinder, a lower cylinder is arranged in the upper cylinder, springs are distributed on the inner wall of the upper cylinder, and the other ends of the springs are fixedly connected with the outer wall of the lower cylinder.

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

1. the first flame-retardant layer, the waterproof layer, the second flame-retardant layer, the first insulating layer and the second insulating layer are matched with the cable core, so that the flame-retardant effect of the cable is effectively improved, and the fire resistance and the insulation resistance of the cable are improved;

2. the reinforcing ribs, the outer protective layer, the elastic layer, the fixing tube and the fixing disc are matched with the cable cores, so that the influence of external force on the cable cores is reduced, the strength of the cable is improved, and the condition that the use of the cable is influenced by deformation and fracture of the inner cable cores is avoided;

to sum up, the utility model discloses simple structure, convenient to use, the effectual refractiveness, the insulating nature of the cable that has improved, convenient to use.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limitation. In the drawings:

fig. 1 is a front view of a novel power cable structure with good flame retardant effect provided by the present invention;

fig. 2 is a right side view of the novel power cable structure with good flame retardant effect provided by the present invention;

fig. 3 is a cross-sectional view taken along a line a-a in fig. 2 of a novel power cable structure with a good flame retardant effect according to the present invention;

fig. 4 is an enlarged view of a portion B in fig. 2 of a novel power cable structure with a good flame retardant effect provided by the present invention;

number in the figure: the cable comprises an outer protective layer 1, reinforcing ribs 2, a first flame-retardant layer 3, a waterproof layer 4, an elastic layer 5, a first insulating layer 6, a fixing layer 7, a fixing block 8, a fixing pipe 9, a protecting pipe 10, a second insulating layer 11, a cable core 12, a fixing disc 13, a limiting plate 14, a second flame-retardant layer 15 and a spring 16.

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.

Example 1: referring to fig. 1-4, a novel power cable structure that flame retardant efficiency is good, including outer protective layer 1, outer protective layer is cylindric, 1 inner wall rigid coupling of outer protective layer has cylindric first fire-retardant layer 3, the material on first fire-retardant layer is ethylene propylene rubber insulation chloroprene rubber, 3 inner wall rigid couplings on first fire-retardant layer have cylindric waterproof layer 4, the material of waterproof layer is ethylene propylene diene monomer, 4 inner wall rigid couplings on waterproof layer have cylindric

elastic layer

5, 5 inner wall rigid couplings on elastic layer have cylindric first insulation layer 6, the material on first insulation layer is insulating rubber, 6 inner wall rigid couplings on first insulation layer have cylindric

fixed layer

7, 7 inner wall rigid couplings on fixed layer have cylindric fixed pipe 9, it is triangle-shaped and is equipped with three cable cores 12 to be equipped with in the fixed pipe 9.

The utility model discloses in, the material of outer protective layer 1 is silicon rubber, 1 side longitudinal distribution of outer protective layer has the circular shape through-hole, all inserts in every through-hole and is equipped with strengthening rib 2.

The utility model discloses in, the 7 inner wall distributions in fixed bed have the fixed slot of rectangle form, fixed 9 outer wall distributions of pipe have the fixed block 8 of rectangle form, and every fixed block 8 all is located the fixed slot that corresponds.

The utility model discloses in, the parcel has cylindric second insulating layer 11 outside the cable core 12, the cylindric protective tube 10 of second insulating layer 11 outside parcel, the material of second insulating layer is insulating rubber.

The utility model discloses in, it has circular shape fixed disk 13 to distribute in the fixed pipe 9, and every fixed disk 13 surface all with fixed pipe 9 inner wall rigid coupling, all is equipped with the fire-retardant layer 15 of second between per two adjacent fixed disks 13, the material on the fire-retardant layer of second is ethylene propylene rubber insulating chloroprene rubber, and every protecting tube 10 all is located the fire-retardant layer 15 of second, it is equipped with three fixed orifices to be triangle-shaped on the fixed disk 13, and every cable core 12 all is located the fixed orifices that corresponds, and every protecting tube 10 all with the fixed orifices inner wall rigid coupling that corresponds, the fixed orifices inner wall distributes has the breach of rectangle form, protecting tube 10 outer wall distributes has the limiting plate 14 of rectangle form, and every limiting plate 14 all is located the breach that corresponds.

The utility model discloses in, elastic layer 5 includes the drum, be equipped with down the drum in going up the drum, it has spring 16 to go up the distribution of drum inner wall, the spring 16 other end all with drum outer wall rigid coupling down, the material of going up drum and drum down is rubber.

Example 2: when the utility model is used, the cable core 12 is connected with the device, the power supply is turned on for use, when a fire occurs, the outer protective layer 1 outside the cable burns, the inner first flame-retardant layer 3 can effectively avoid the burning of the inner cable core 12, the inner cable core 12 is effectively protected, the cable is convenient to use, when the flame burns into the cable, the second flame-retardant layer 15 can effectively retard the flame, the flame is prevented from continuing to burn, the cable core 12 is effectively protected for the second time, the cable core 12 is convenient to use, the first insulating layer 6 and the second insulating layer 11 in the cable can effectively increase the insulating effect of the device, the interference of the outside to the cable in use is avoided, finally, when the cable is subjected to the external pressure, the reinforcing rib 2 effectively improves the strength of the cable, meanwhile, the elastic layer 5 effectively plays a role of buffering, the influence of the pressure to the cable core 12 is reduced, the fixing disc 13 is convenient for fixing the cable cores 12 and cutting the cable cores 12, so that mutual interference among the cable cores 12 is avoided, and the device is convenient to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a novel good power cable structure of flame retardant efficiency, includes outer protective layer (1), its characterized in that: the outer protective layer is cylindric, outer protective layer (1) inner wall rigid coupling has cylindric first fire-retardant layer (3), first fire-retardant layer (3) inner wall rigid coupling has cylindric waterproof layer (4), waterproof layer (4) inner wall rigid coupling has cylindric elastic layer (5), elastic layer (5) inner wall rigid coupling has cylindric first insulation layer (6), first insulation layer (6) inner wall rigid coupling has cylindric fixed bed (7), fixed bed (7) inner wall rigid coupling has cylindric fixed pipe (9), it is triangle-shaped to be equipped with three cable cores (12) in fixed pipe (9).

2. The novel power cable structure with good flame retardant effect according to claim 1, characterized in that: the material of outer protective layer (1) is silicon rubber, outer protective layer (1) side longitudinal distribution has circular through-hole, all inserts in every through-hole and is equipped with strengthening rib (2).

3. The novel power cable structure with good flame retardant effect according to claim 1, characterized in that: the inner wall of the fixed layer (7) is distributed with rectangular fixed grooves, the outer wall of the fixed pipe (9) is distributed with rectangular fixed blocks (8), and each fixed block (8) is located in the corresponding fixed groove.

4. The novel power cable structure with good flame retardant effect according to claim 1, characterized in that: the cable core (12) outside parcel has cylindric second insulating layer (11), cylindric protective tube (10) is wrapped up in second insulating layer (11) outside.

5. The novel power cable structure with good flame retardant effect according to claim 1, characterized in that: fixed intraductal the distribution of (9) has circular shape fixed disk (13), and every fixed disk (13) surface all with fixed pipe (9) inner wall rigid coupling, all is equipped with the fire-retardant layer of second (15) between per two adjacent fixed disks (13), and every protective tube (10) all is located the fire-retardant layer of second (15), it is equipped with three fixed orifices to be triangle-shaped on fixed disk (13), and every cable core (12) all is located the fixed orifices that corresponds, and every protective tube (10) all with the fixed orifices inner wall rigid coupling that corresponds.

6. The novel power cable structure with good flame retardant effect according to claim 5, characterized in that: rectangular gaps are distributed on the inner wall of the fixing hole, rectangular limiting plates (14) are distributed on the outer wall of the protective pipe (10), and each limiting plate (14) is located in the corresponding gap.

7. The novel power cable structure with good flame retardant effect according to claim 1, characterized in that: the elastic layer (5) comprises an upper cylinder, a lower cylinder is arranged in the upper cylinder, springs (16) are distributed on the inner wall of the upper cylinder, and the other ends of the springs (16) are fixedly connected with the outer wall of the lower cylinder.