CN210667879U

CN210667879U - Fireproof cable capable of increasing strength

Info

Publication number: CN210667879U
Application number: CN201921851848.XU
Authority: CN
Inventors: 韩竞毅; 虞卫; 庄新华
Original assignee: Jiangsu Jinhao Cable Technology Co ltd
Current assignee: Jiangsu Jinhao Cable Technology Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-06-02
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a fireproof cable of multiplicable intensity, including outer jacket, gasbag and conductive metal line main part, the inside of outer jacket is provided with the gasbag, and the inboard of gasbag installs the armor to the inside of armor is provided with the collar, and the internally mounted of collar has wire rope moreover, the outside of collar is provided with the support frame, and the avris of support frame has seted up the lightening hole, and installs interior sheath between armor and the collar, be provided with fire-retardant filling layer between interior sheath and the armor, and the internally mounted of interior sheath has the insulating layer to the inside of insulating layer is provided with conductive metal line main part. This fireproof cable of multiplicable intensity can play the cushioning effect to pressure when through increasing the inside intensity of itself of cable, further increases the intensity of cable to and when meeting with the conflagration, can assist and put out the cable part of burning, make fire behavior greatly increased.

Description

Fireproof cable capable of increasing strength

Technical Field

The utility model relates to the technical field of cables, specifically be a fireproof cable of multiplicable intensity.

Background

The main function of the cable is power transmission, and its function is indispensable in urban construction, and with the continuous acceleration of the foot step of urban construction in China, the application of the cable is more and more, however, the existing cable has the following problems:

1. the cable has the main function of transmitting electric power, so that the safety of the cable is the most important, and the cable has various and complex use environments, so that the sufficient strength is one of the most basic attribute requirements for ensuring the safety of the cable, but the existing cable has insufficient strength and cannot meet part of more extreme use environments;

2. the existing cable mostly depends on adding a nonflammable filling layer to avoid the damage of fire to the cable, has a single means, can only slow down the combustion of a fire source, and cannot play a role in assisting in extinguishing the fire source.

In order to solve the problems, innovative design based on the existing cable is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fireproof cable of multiplicable intensity to it is not enough to solve above-mentioned background art and propose current cable intensity, can not satisfy the comparatively extreme service environment of part, and when facing the conflagration, the comparatively single problem of fire prevention measure.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fireproof cable of multiplicable intensity, includes outer sheath, gasbag and conductive metal line main part, the inside of outer sheath is provided with the gasbag, and the inboard of gasbag installs the armor to the inside of armor is provided with the collar, and the internally mounted of collar has wire rope moreover, the outside of collar is provided with the support frame, and the avris of support frame has seted up the lightening hole, and installs inner sheath between armor and the collar, be provided with fire-retardant filling layer between inner sheath and the armor, and the internally mounted of inner sheath has the insulating layer to the inside of insulating layer is provided with conductive metal line main part.

Preferably, the outer protection layer is tightly attached to the airbag, and the outer protection layer is made of rubber.

Preferably, the air bag is arranged in a hollow manner, and the air bag is made of rubber.

Preferably, the mounting rings are uniformly distributed in the outer protective layer at equal intervals, and are made of plastic.

Preferably, the central axis of the steel wire rope and the central axis of the mounting ring are overlapped, and the steel wire rope is fixedly connected with the mounting ring.

Preferably, the support frame is provided with 3 groups, and the support frame is evenly distributed at equal angles relative to the central axis of the mounting ring.

Compared with the prior art, the beneficial effects of the utility model are that: the fireproof cable with the strength capable of being increased can play a role in buffering pressure by increasing the strength of the interior of the cable, further increase the strength of the cable, and can assist in extinguishing a burning cable part when a fire occurs, so that the fireproof capacity is greatly increased;

1. the support frame arranged on the outer side of the mounting ring and the steel wire rope arranged in the mounting ring can effectively enhance the strength of the cable, and meanwhile, sufficient inert gas is injected into the air bag, so that when the external part of the cable is subjected to extrusion force, the pressure on an internal component can be reduced, and the strength of the cable is greatly increased;

2. through the inert gas injected into the air bag, when a certain part of the cable is subjected to a fire disaster and leaks, the inert gas in the air bag is quickly concentrated at the part and is sprayed out from the part, so that the content of oxygen in the air at the part is reduced, and the effect of assisting in extinguishing the fire source is further achieved.

Drawings

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

FIG. 2 is a schematic side sectional view of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

fig. 4 is a schematic side view of the support frame of the present invention.

In the figure: 1. an outer jacket; 2. an air bag; 3. an armor layer; 4. a mounting ring; 5. a wire rope; 6. a support frame; 7. lightening holes; 8. an inner protective layer; 9. a flame retardant filler layer; 10. an insulating layer; 11. a conductive metal line body.

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. 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.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a fireproof cable of multiplicable intensity, including outer sheath 1, gasbag 2, armor 3, collar 4, wire rope 5, support frame 6, lightening hole 7, interior sheath 8, fire-retardant filling layer 9, insulating layer 10 and conductive metal wire main part 11, the inside of outer sheath 1 is provided with gasbag 2, and armor 3 is installed to the inboard of gasbag 2, and the inside of armor 3 is provided with collar 4, and the internally mounted of collar 4 has wire rope 5, the outside of collar 4 is provided with support frame 6, and lightening hole 7 has been seted up to the avris of support frame 6, and install interior sheath 8 between armor 3 and the collar 4, be provided with fire-retardant filling layer 9 between interior sheath 8 and the armor 3, and the internally mounted of interior sheath 8 has insulating layer 10, and the inside of insulating layer 10 is provided with conductive metal wire main part 11.

The air bag 2 is arranged in a hollow manner, the air bag 2 is made of rubber, inert gas can be injected into the air bag 2, the air bag 2 can play a certain buffering role after sufficient inert gas is injected, and meanwhile, the air bag 2 can expand after sufficient gas is injected, so that when a certain position on the air bag 2 is burnt and damaged, the inert gas in the air bag 2 can be sprayed out from the position, and the effect of assisting in extinguishing a fire source is achieved;

collar 4 is in the inside equidistant evenly distributed of outer sheath 1, and collar 4 is the plastics material, the central axis of wire rope 5 and the central axis of collar 4 coincide each other, and wire rope 5 is fixed connection with collar 4, support frame 6 is provided with 3 groups, and the equal angle evenly distributed of the central axis of the relative collar 4 of support frame 6, make this cable receive when dragging, wire rope 5 can provide most holding power, support frame 6 can play the supporting role to outer sheath 1 simultaneously, it collapses to take place when avoiding it to receive pressure.

The working principle is as follows: when the fireproof cable capable of increasing the strength is used, as shown in fig. 1-3, the basic strength can be provided for the cable through the armor layer 3, as shown in fig. 4, when the cable is pulled, the cable can be supported mainly through the enough strength of the steel wire rope 5 through the steel wire rope 5 arranged in the mounting ring 4, the cable is prevented from being broken due to a large pulling force, meanwhile, the cable can be supported in an auxiliary manner through the support frame 6 arranged outside the mounting ring 4, the cable is prevented from being collapsed due to an overlarge pressure, meanwhile, the airbag 2 can play a certain buffering role when the cable is extruded outside through injecting enough inert gas into the airbag 2, so that the instantaneous pressure on the component at the bottom of the airbag 2 is greatly reduced, and the damage caused by the overlarge instantaneous pressure is avoided, thereby greatly increasing the strength and the pressure resistance of the cable;

as shown in figure 1, when this cable meets with the source of a fire burning, can make this cable itself be difficult for appearing burning through fire-retardant filling layer 9, while a certain department of outer jacket 1 and gasbag 2 is when destroyed because the burning, make gasbag 2 self take place certain inflation through injecting into inert gas in gasbag 2, make gasbag 2 can take place the shrink this moment, and then oppress inert gas in it, collect destroyed position and from this department blowout, thereby with the air thrust around here, and it is not aided by itself, it can't continue the burning to lead to the reaction that the source of a fire lacks oxygen, thereby make this cable can assist and put out the source of a fire burning, its fire behavior is greatly increased.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a fire prevention cable of multiplicable intensity, includes outer jacket (1), gasbag (2) and conductive metal line main part (11), its characterized in that: the utility model discloses a safety protective sheath, including outer jacket (1), the inside of outer jacket (1) is provided with gasbag (2), and the inboard of gasbag (2) installs armor (3) to the inside of armor (3) is provided with collar (4), and the internally mounted of collar (4) has wire rope (5), the outside of collar (4) is provided with support frame (6), and the avris of support frame (6) has seted up lightening hole (7), and install between armor (3) and collar (4) interior sheath (8), be provided with fire-retardant filling layer (9) between interior sheath (8) and armor (3), and the internally mounted of interior sheath (8) has insulating layer (10) to the inside of insulating layer (10) is provided with conductive metal wire main part (11).

2. A fire-resistant cable with increased strength as claimed in claim 1, wherein: the outer protective layer (1) is tightly attached to the air bag (2), and the outer protective layer (1) is made of rubber.

3. A fire-resistant cable with increased strength as claimed in claim 1, wherein: the air bag (2) is arranged to be hollow, and the air bag (2) is made of rubber.

4. A fire-resistant cable with increased strength as claimed in claim 1, wherein: the mounting rings (4) are uniformly distributed in the outer protective layer (1) at equal intervals, and the mounting rings (4) are made of plastic materials.

5. A fire-resistant cable with increased strength as claimed in claim 1, wherein: the central axis of the steel wire rope (5) is superposed with the central axis of the mounting ring (4), and the steel wire rope (5) is fixedly connected with the mounting ring (4).

6. A fire-resistant cable with increased strength as claimed in claim 1, wherein: the support frame (6) is provided with 3 groups, and the support frame (6) is uniformly distributed in an equal angle relative to the central axis of the mounting ring (4).