CN215815315U

CN215815315U - Insulating cable with fire prevention function

Info

Publication number: CN215815315U
Application number: CN202121894396.0U
Authority: CN
Inventors: 滕磊; 赵大亮
Original assignee: Wuhan Jianghua Wire And Cable Co ltd
Current assignee: Wuhan Jianghua Wire And Cable Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-02-11
Anticipated expiration: 2031-08-13

Abstract

The utility model relates to the technical field of high-temperature cables, and discloses an insulated cable with a fireproof function, which comprises a steel wire rope, a cable inner core, an inner core protecting sleeve, an insulating shell, a first protecting shell, a second protecting shell and a third protecting shell, wherein the inner core protecting sleeve is arranged around the steel wire rope, the cable inner core is arranged in the inner core protecting sleeve, the insulating shell is arranged outside the inner core protecting sleeve, the first protecting shell is arranged outside the insulating shell, the second protecting shell is arranged outside the first protecting shell, and the third protecting shell is arranged outside the second protecting shell. The utility model discloses a, through being equipped with multilayer protective housing and multilayer inoxidizing coating, further promoted the whole fire prevention of cable and prevented the performance of electricity under the condition that guarantees that cable self insulating properties is good, the cylinder that is equipped with in the second protective housing then can pour into the fire prevention filler that is equipped with in the spliced pole into the third protective housing in addition.

Description

Insulating cable with fire prevention function

Technical Field

The utility model relates to the technical field of high-temperature cables, in particular to an insulating cable with a fireproof function.

Background

The cable is a general name of articles such as optical cables, electric cables and the like and is mainly used for controlling installation, connecting equipment, transmitting electric power and the like; because some cables are located outdoors, the power equipment is easy to have fire and other problems; especially, the requirement on the fireproof performance of the cable is the most strict, and the cable is mainly arranged underground as a main body in a power line and is difficult to well protect, so that the cable is required to have the capability of resisting external flame damage and cannot have the characteristic of generating a fire source.

To this end, we have designed an insulated cable with a fire protection function.

SUMMERY OF THE UTILITY MODEL

In view of the defects in the prior art, the present invention provides an insulated cable with fire-proof function, which solves the problems in the background art.

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

an insulated cable with a fireproof function comprises a steel wire rope, an inner core of the cable, an inner core protecting sleeve, an insulating shell, a first protecting shell, a second protecting shell and a third protecting shell, wherein the inner core protecting sleeve is arranged around the steel wire rope, the inner core of the cable is arranged in the inner core protecting sleeve, the insulating shell is arranged outside the inner core protecting sleeve, the first protecting shell is arranged outside the insulating shell, the second protecting shell is arranged outside the first protecting shell, the third protecting shell is arranged outside the second protecting shell, the inner core of the cable is provided with the inner core protecting sleeve, so that potential safety hazards caused by the fact that the inner core of the cable is exposed can be avoided, the inner core of the cable is not easily interfered by external factors in the using process, the first protecting shell, the second protecting shell and the third protecting shell which are made of high-temperature-resistant and corrosion-resistant materials are additionally arranged outside the inner core protecting sleeve, and the purpose of layered fireproof can be achieved, the fireproof capacity of the cable is greatly improved.

Furthermore, an insulating layer is additionally arranged between the insulating shell and the inner core protecting sleeve, so that the influence of the conditions such as electric leakage and the like on the outside caused by the inner core of the cable is avoided, and meanwhile, the cable can be ensured to be in an environment which is relatively difficult to be interfered by the outside to stably work.

Furthermore, a flame-retardant layer is additionally arranged between the insulating shell and the first protective shell, so that fire caused by overload of the cable inner core is prevented from spreading to the outside of the flame-retardant layer, and the flame-retardant layer can also block the influence of external fire on the cable inner core to a certain extent.

Furthermore, a fireproof layer is additionally arranged between the first protective shell and the second protective shell, so that the fireproof effect of the cable is further achieved.

Further, a waterproof layer is additionally arranged between the second protective shell and the third protective shell, so that the overall waterproof performance of the cable is effectively improved, and the normal work of the cable is prevented from being affected by damp.

Furthermore, a connecting column is arranged between the second protective shell and the third protective shell, and a fireproof filler arranged in the connecting column is injected into the third protective shell under the condition that the external temperature extremely rises.

Further, be equipped with the push rod in the spliced pole, push rod one side is equipped with the piston rod, and piston rod one side is equipped with the cylinder, is equipped with the nut on the piston rod, is connected through the screw thread between piston rod and the push rod, drives the piston rod through starting the cylinder, and rethread piston rod drives the push rod and pours into the fire prevention filler that is equipped with in the spliced pole into the third protective housing.

The utility model has the beneficial effects that:

the utility model not only uses the traditional protective layer and the protective layer, but also adds the cylinder device in the protective shell, when the temperature of the protective shell on the outmost layer rises sharply, the fireproof filling agent in the connecting column can be injected into the protective shell on the outmost layer through the cylinder to play a role of further strengthening the fireproof, and meanwhile, because the fireproof agent is not directly filled in the protective shell, the protective shell is relatively easy to install and transport under normal conditions.

Drawings

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

FIG. 2 is a schematic structural view of a material portion of the present invention;

fig. 3 is a schematic structural view of the push rod portion of the present invention.

In the figure: 1. a wire rope; 2. an inner core of the cable; 3. an inner core protecting sleeve; 4. an insulating case; 5. a first protective case; 6. a second protective shell; 7. connecting columns; 8. a third protective shell; 9. an insulating layer; 10. a flame retardant layer; 11. a fire barrier layer; 12. a waterproof layer; 13. a cylinder; 14. a piston rod; 15. a push rod; 16. a nut; 17. and (4) threading.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an insulated cable with a fireproof function includes a steel wire rope 1, a cable inner core 2, an inner core protecting jacket 3, an insulating shell 4, a first protecting shell 5, a second protecting shell 6 and a third protecting shell 8, the inner core protecting jacket 3 is disposed around the steel wire rope 1, the cable inner core 2 is disposed in the inner core protecting jacket 3, the insulating shell 4 is disposed outside the inner core protecting jacket 3, the first protecting shell 5 is disposed outside the insulating shell 4, the second protecting shell 6 is disposed outside the first protecting shell 5, the third protecting shell 8 is disposed outside the second protecting shell 6, the cable inner core 2 is externally provided with the inner core protecting jacket 3, so that potential safety hazards caused by exposure of the cable inner core 2 can be avoided, and the cable inner core 2 is not easily interfered by external factors in a using process, and the first protecting shell 5, made of a high temperature and corrosion resistant material, is additionally disposed outside the inner core protecting jacket 3, The second protective housing 6 and the third protective housing 8 can achieve the purpose of layered fire prevention, and the fire prevention capacity of the cable is greatly improved.

An insulating layer 9 is additionally arranged between the insulating shell 4 and the inner core protecting sleeve 3, so that the cable inner core 2 is prevented from being influenced by the conditions such as electric leakage and the like, and meanwhile, the cable can be ensured to be in an environment which is not easily interfered by the outside world to work stably.

A flame-retardant layer 10 is additionally arranged between the insulating shell 4 and the first protective shell 5, so that fire caused by overload of the cable inner core 2 is prevented from spreading out of the flame-retardant layer 10, and on the other hand, the flame-retardant layer 10 can also prevent the influence of external fire on the cable inner core 2 to a certain extent.

A fireproof layer 11 is additionally arranged between the first protective shell 5 and the second protective shell 6 to further play a role in preventing the cables from being fireproof.

Waterproof layer 12 has been increased between second protective housing 6 and the third protective housing 8 to effectively promote the whole waterproof performance of cable, avoid the normal work of cable that influences of weing.

A connecting column 7 is arranged between the second protective shell 6 and the third protective shell 8, and a fireproof filler arranged in the connecting column 7 is injected into the third protective shell 8 under the condition that the outside temperature is greatly increased.

Be equipped with push rod 15 in the spliced pole 7, push rod 15 one side is equipped with piston rod 14, and piston rod 14 one side is equipped with cylinder 13, is equipped with nut 16 on the piston rod 14, is connected through screw thread 17 between piston rod 14 and the push rod 15, drives piston rod 14 through starting cylinder 13, and rethread piston rod 14 drives push rod 15 and pours into the fire prevention filler that is equipped with in the spliced pole 7 into the third protective housing 8.

In summary, when the cable is used, the connecting column 7 is firstly installed between the second protective shell 6 and the third protective shell 8, then the insulating shell 4, the first protective shell 5, the second protective shell 6 and the third protective shell 8 are installed sequentially from inside to outside, and the insulating layer 9, the flame-retardant layer 10, the fireproof layer 11 and the waterproof layer 12 are sequentially filled in the insulating shell, the flame-retardant layer 11, the fireproof and waterproof layers 12 are sequentially filled in the insulating shell, and the fireproof and waterproof performances of the cable can be greatly improved through the cooperation of the insulating shell, the flame-retardant layer and the waterproof layer, so that the cable can work safely and stably for a long time.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides an insulated cable with fire prevention function, includes wire rope (1), cable inner core (2), inner core lag (3), insulating casing (4), first protective housing (5), second protective housing (6) and third protective housing (8), its characterized in that: be equipped with inner core lag (3) around wire rope (1), be equipped with cable inner core (2) in inner core lag (3), inner core lag (3) are equipped with insulating casing (4) outward, insulating casing (4) are equipped with first protective housing (5) outward, first protective housing (5) are equipped with second protective housing (6) outward, second protective housing (6) are equipped with third protective housing (8) outward.

2. The insulated cable with a fire-proof function according to claim 1, wherein: an insulating layer (9) is additionally arranged between the insulating shell (4) and the inner core protecting sleeve (3).

3. The insulated cable with a fire-proof function according to claim 1, wherein: and a flame-retardant layer (10) is additionally arranged between the insulating shell (4) and the first protective shell (5).

4. The insulated cable with a fire-proof function according to claim 1, wherein: and a fireproof layer (11) is additionally arranged between the first protective shell (5) and the second protective shell (6).

5. The insulated cable with a fire-proof function according to claim 1, wherein: a waterproof layer (12) is additionally arranged between the second protective shell (6) and the third protective shell (8).

6. The insulated cable with a fire-proof function according to claim 1, wherein: a connecting column (7) is arranged between the second protective shell (6) and the third protective shell (8).

7. The insulated cable with a fire protection function according to claim 6, wherein: the connecting column is characterized in that a push rod (15) is arranged in the connecting column (7), a piston rod (14) is arranged on one side of the push rod (15), an air cylinder (13) is arranged on one side of the piston rod (14), a nut (16) is arranged on the piston rod (14), and the piston rod (14) is connected with the push rod (15) through a thread (17).