CN216311378U

CN216311378U - Special cable for firemen

Info

Publication number: CN216311378U
Application number: CN202121412178.9U
Authority: CN
Inventors: 徐健; 黄荣华
Original assignee: Alliance United Cable Technology Ji'an Co ltd
Current assignee: Alliance United Cable Technology Ji'an Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-04-15
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses a special cable for firemen. The cable comprises two groups of first wire groups, wherein the two first wire groups are arranged in the cable; the second wire group is arranged inside the cable and close to the first wire group; the third line group is arranged between the second line group and the first line group and is respectively attached to the second line group and the first line group; two external wire cores are arranged, one external wire core is arranged between one first wire group and the third wire group, and the other external wire core is arranged between the two first wire groups and positioned between the two second ends; the plurality of filling pieces are respectively filled in gaps between the two first line groups, the second line group, the third line group and the two outer line groups; the braided layer is coated outside the first wire group, the second wire group, the third wire group and the external wire core; the exterior layer covers the outside of weaving layer, and the interior surface subsides of exterior layer are located the outer wall of weaving layer. The technical scheme of the utility model aims to provide a plurality of wire groups and wire cores so as to solve the problem of unstable connection in the working process of the cable.

Description

Special cable for firemen

Technical Field

The utility model relates to the technical field of electric wires and cables, in particular to a special cable for firemen.

Background

A fire refers to a catastrophic combustion event that loses control over time or space. Among the various disasters, fire is one of the main disasters that threaten public safety and social development most often and most generally. The human being can utilize and control the fire, which is an important mark of the civilization progress. Therefore, the history of using fire by human beings and the history of fighting against fire are concomitant, people continuously summarize the fire occurrence rule while using fire, and the fire and the harm to human beings are reduced as much as possible. People need to escape safely and quickly in case of fire.

The cable of fire prevention usefulness in prior art, the in-process of using receives pulling of external force very easily under the in-process is in disorder complicated environment and leads to the damage and can not use, influences the fire fighter's progress of putting out a fire, and the cable is arranged under the crisis condition during the use moreover, and misoperation during the stretching very easily can lead to the rupture of cable, and stability ratio is relatively poor during the use. Therefore, it is highly desirable to design a firefighter-specific cable to solve the cable connection stability problem.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a special cable for firemen, aiming at arranging a plurality of wire groups and wire cores to enhance the problem of unstable connection in the working process of the cable.

In order to achieve the above object, the present invention provides a firefighter-dedicated cable, including:

the first wire groups are provided with two groups, the two first wire groups are arranged in the cable, each first wire group is provided with a first end and a second end, the two first ends are mutually contacted, and the two second ends are mutually far away;

the second wire group is arranged inside the cable and is close to the first wire group, and one side of the second wire group is attached to one side of the first wire group;

the third wire group is arranged between the second wire group and the first wire group and is respectively attached to the second wire group and the first wire group;

two external wire cores are arranged, one external wire core is arranged between one first wire group and the third wire group, and the other external wire core is arranged between the two first wire groups and positioned between the two second ends;

the plurality of filling pieces are respectively filled in the gaps between the two first line groups, the second line group, the third line group and the two external wire cores;

the braided layer is coated outside the first wire group, the second wire group, the third wire group and the external wire core;

and the outer covering layer covers the outer part of the woven layer, and the inner surface of the outer covering layer is attached to the outer wall of the woven layer.

Optionally, the cable further comprises a ground wire, and the ground wire is arranged between the second wire group and the third wire group.

Optionally, the first wire group includes two first inner cores and a first inner sheath, two the first inner cores are twisted with each other, the first inner sheath is wrapped in the two outside of the first inner cores, and the first end and the second end are located inside the first inner sheath.

Optionally, the first inner core includes a first conductor layer and a first insulating layer, the first conductor layer is disposed inside the first inner core, the first insulating layer is wrapped outside the first conductor layer, and the inner surface of the first inner sheath is attached to the outer walls of the two first insulating layers.

Optionally, the first conductor layer is made of tin-plated copper and aramid material, the first insulation layer is made of polytetrafluoroethylene material, and the first inner sheath is made of hot-melt polyester film material.

Optionally, the second wire group comprises two second internal wire cores and a second inner sheath, the two second internal wire cores are mutually twisted, the second inner sheath covers the two external portions of the second internal wire cores, and one side of the second inner sheath is attached to one side of the first inner sheath.

Optionally, the second inner core includes a second conductor layer and a second insulating layer, the second conductor layer is disposed inside the second inner core, the second insulating layer covers the outside of the second conductor layer, and the inner surface of the second inner sheath is attached to the outer walls of the two second insulating layers.

Optionally, the third wire group includes two third inside sinle silks and a third inner sheath, two the mutual transposition of the inside sinle silk of third, the cladding of third inner sheath in two the outside of the inside sinle silk of third, the third inner sheath respectively with first inner sheath with the laminating of second inner sheath sets up.

Optionally, the third inner core includes a third conductor layer and a third insulating layer, the third conductor layer is disposed inside the third inner core, the third insulating layer covers the outside of the third conductor layer, and the inner surface of the third inner sheath is attached to the outer walls of the two third insulating layers.

Optionally, the outer core includes an outer conductor layer and an outer insulating layer, the outer insulating layer covers the outer portion of the outer conductor layer, one of the outer insulating layer is located between the first inner sheath and the third inner sheath, and the other of the outer insulating layer is located between the two first inner sheaths.

Optionally, the outer layer has a tensile strength greater than 16N/mm 2.

Optionally, the woven layer is made of a mylar material and the filler member is made of an aramid material.

Optionally, the inner diameter of the outer coating is 12mm, the outer diameter of the outer coating is 25mm, and the outer coating is made of a thermoplastic elastic material.

The fire-fighting special cable comprises two groups of first wire groups, two second wire groups, a third wire group, an external wire core, a filling piece, a woven layer and an outer tegument layer, wherein the first wire groups are adjacently arranged, one ends of the two first wire groups, the second wire groups and the third wire groups are close to each other and coaxially arranged, and form a four-petal structure, namely, one ends of the two first wire groups, the second wire groups and the third wire groups, which are close to each other, are arranged towards the center of the cable, and the other ends of the two first wire groups, the second wire groups and the third wire groups extend outwards. The outside sinle silk is located between a first group and the second line group, and the clearance packing between two first groups, second line group, inside sinle silk and third line group has the packing, sets up the effect that the packing can play each group of keeping apart and outside sinle silk, avoids mutual interference between each group. Simultaneously, the outside of each group still is provided with the weaving layer, and the weaving layer has shielding function, mainly plays the effect of shielding external signal interference, and the outside of weaving layer still is provided with outer tegillum, and outer tegillum cladding is at the surface of weaving layer, and outer quilt has certain hardness, can play the effect of protecting inside group and sinle silk, can further play the effect of shielding external signal interference simultaneously, makes the more stability of cable. According to the utility model, the stability and tensile strength of the cable in the conveying process are enhanced by arranging a plurality of groups of independent wire groups and wire cores and arranging anti-interference layers between the wire groups and the wire cores, so that the aim of enhancing the stability of the cable in the working process is fulfilled.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of the fireman-specific cable of the present invention;

fig. 2 is a cross-sectional view in the longitudinal direction of fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Special cable for firemen	30	Third wire group
10	First line set	31	Third inner core
				11	First inner wire core	311	Third conductor layer
111	First conductor layer	312	A third insulating layer
				112	A first insulating layer	32	Third inner sheath
12	First inner sheath	40	External wire core
				20	Second wire set	41	Outer conductor layer
21	Second inner core	42	Outer insulating layer
				211	Second conductor layer	50	Filling member
212	A second insulating layer	60	Woven layer
				22	Second inner sheath	70	Outer tegument
80	Ground wire

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The present invention proposes a firefighter-specific cable 100.

As shown in fig. 1 and 2, in the embodiment of the present invention, the firefighter-dedicated cable 100 includes:

two groups of first wire groups 10 are arranged, two groups of the first wire groups 10 are arranged in the cable, the first wire groups 10 are provided with first ends and second ends, the first ends are mutually contacted, and the second ends are mutually far away;

a second wire set 20, wherein the second wire set 20 is arranged inside the cable and is arranged close to the first wire set 10, and one side of the second wire set 20 is attached to one side of the first wire set 10;

a third wire group 30, wherein the third wire group 30 is arranged between the second wire group 20 and the first wire group 10, and is respectively attached to the second wire group 20 and the first wire group 10;

two external wire cores 40, one of the external wire cores 40 is arranged between one of the first wire sets 10 and the third wire set 30, and the other external wire core 40 is arranged between the two first wire sets 10 and located between the two second ends;

a plurality of filling members 50, wherein the plurality of filling members 50 are respectively filled in the gaps between the two first wire groups 10, the second wire groups 20, the third wire groups 30 and the two outer wire cores;

a braided layer 60, wherein the braided layer 60 covers the first wire group 10, the second wire group 20, the third wire group 30 and the outer wire core 40;

and a covering layer 70, wherein the covering layer 70 covers the outer part of the woven layer 60, and the inner surface of the covering layer 70 is attached to the outer wall of the woven layer 60.

It can be understood that, the whole cylindrical structure that is of special cable of fire fighter, tegument 70 and weaving layer 60 wrap up in the outside of each group and sinle silk, and two first line group 10, second line group 20 and third line group 30 are oval structure respectively, and inside is twisted by many sinle silks respectively and forms, and two first line group 10, second line group 20 and third line group 30's length is 235mm-265mm, and the virus of shovel of two interior sinle silks is 150mm-180 mm. Because two first line group 10, second line group 20 and third line group 30 are equallyd divide and are formed by the transposition of many inside sinle silks respectively, and two outside sinle silks 40 are located the both sides of a first line group 10, so two first line group 10, second line group 20 and third line group 30's length can be longer than the length of inside sinle silk, and two inside sinle silks stagger the setting, can reduce its mutual interference. In addition, although there is a mutual contact relationship between the two first wire groups 10, the second wire groups 20, the third wire groups 30 and the inner wire cores, there are gaps between the wire groups and the wire cores, the present invention fills the filler 50 between the gaps, so that the interference resistance between the wire groups and the wire cores can be enhanced, and the filler 50 is intensively arranged at the center of the cable, i.e. the centralized region of the wire groups and the wire cores. Weaving layer 60 cladding is in the outside of each group and sinle silk, and the surface of each group and sinle silk is located in the inner wall subsides of weaving layer 60, and mainly used shields the interference of outer to each group and sinle silk, and weaving layer 60's outside still cladding has outer tegument 70, and outer tegument 70 mainly plays the guard action to its inside, avoids inside each group, sinle silk to receive the damage. The plurality of wire groups and the wire cores are arranged to play a role in enhancing the stability of the cable, namely, each wire group and each wire core can be communicated to work simultaneously or work independently, namely, when one wire group is damaged or broken, other wire groups and the wire cores can continue to work, so that the stability of the cable is enhanced, and the service life and the working strength of the cable can be increased.

The fire-fighting special cable comprises a first wire group 10, a second wire group 20, a third wire group 30, an external wire core 40, a filling piece 50, a woven layer 60 and an outer coating layer 70, wherein the first wire group 10 is provided with two groups, the two first wire groups 10 are adjacently arranged, one ends of the two first wire groups 10, the second wire groups 20 and the third wire groups 30 are close to each other and coaxially arranged, and a four-petal structure is formed, namely, one ends of the two first wire groups 10, the second wire groups 20 and the third wire groups 30 close to each other are arranged towards the center of the cable, and the other ends of the two first wire groups 10, the second wire groups 20 and the third wire groups 30 extend outwards. The external wire core 40 is disposed between a first wire group 10 and a second wire group 20, and the gap between the two first wire groups 10, the second wire group 20, the internal wire core and the third wire group 30 is filled with the filling member 50, and the filling member 50 can be used for isolating the wire groups from the external wire core 40, thereby avoiding mutual interference between the wire groups. Simultaneously, the outside of each group still is provided with weaving layer 60, weaving layer 60 has the shielding function, mainly plays the effect of shielding external signal interference, weaving layer 60's outside still is provided with outer tegillum 70, the outer tegillum 70 cladding is at weaving layer 60's surface, and outer quilt has certain hardness, can play the effect of protecting inside group and sinle silk, can further play the effect of shielding external signal interference simultaneously, makes the more stability of cable. According to the utility model, the stability and tensile strength of the cable in the conveying process are enhanced by arranging a plurality of groups of independent wire groups and wire cores and arranging anti-interference layers between the wire groups and the wire cores, so that the aim of enhancing the stability of the cable in the working process is fulfilled.

In this embodiment, the cable further includes a ground wire 80, and the ground wire 80 is disposed between the second wire group 20 and the third wire group 30.

It will be appreciated that a ground wire 80 is provided for connection to the power supply line, the ground wire being provided between the second wire set 20 and said third wire set 30 and located away from the centre of the cable.

In this embodiment, the first wire group 10 includes two first inner wire cores 11 and a first inner sheath 12, the two first inner wire cores 11 are twisted with each other, the first inner sheath 12 covers the two first inner wire cores 11, the first end and the second end are disposed inside the first inner sheath 12, the first inner wire core 11 includes a first conductor layer 111 and a first insulating layer 112, the first conductor layer 111 is disposed inside the first inner wire core 11, the first insulating layer 112 covers the first conductor layer 111, and the inner surface of the first inner sheath 12 is attached to the outer walls of the two first insulating layers 112.

It should be noted that, two first inner cores 11 have a certain length, and two first inner cores 11 are twisted along their length direction in a staggered manner, so that the two first inner cores 11 are in close contact with each other, and the first inner sheath 12 covers the two outside of the first inner cores 11, so as to enhance the stability of the two first inner cores 11, and simultaneously, the shielding effect can be achieved, the first insulating layer 112 covers the outside of the first conductor layer 111, the first conductor layer 111 is located inside the first inner cores 11, the inner surface of the first inner sheath 12 is attached to the two outer walls of the first insulating layer 112, so that the first inner cores 11 can be further prevented from being interfered, and the two first inner cores 11 are arranged to improve the working stability of the cable, thereby preventing the cable from being interfered by the outside during the movement.

In this embodiment, the first conductor layer 111 is made of tin-plated copper and aramid material, the first insulating layer 112 is made of teflon material, and the first inner sheath 12 is made of hot-melt polyester film material.

The first conductor layer 111 is used for transmitting data and receiving signals, the first conductor layer 111 is made of tinned copper and aramid fiber materials, the tinned copper has good corrosion resistance, certain strength and hardness and good formability, and the aramid fiber has excellent performances such as ultrahigh strength, high modulus, high temperature resistance, acid and alkali resistance, light weight, insulation, ageing resistance, long life cycle and the like, and the stability of the first wire group 10 can be improved by combining the tinned copper and the aramid fiber; the first insulating layer 112 is made of polytetrafluoroethylene, and polytetrafluoroethylene has excellent chemical stability, corrosion resistance, sealing property, electrical insulating property and good aging resistance, and can further enhance the insulating effect of the first insulating layer 112. The first inner sheath 12 is made of hot-melt polyester film material and has good temperature resistance and mechanical property, thereby avoiding the deformation of the core conductor caused by excessive torsion and enhancing the tensile and bending resistance effect of the core conductor.

In this embodiment, the second wire group 20 includes two second inner wire cores 21 and a second inner sheath 22, the two second inner wire cores 21 are twisted with each other, the second inner sheath 22 covers the two second inner wire cores 21, one side of the second inner sheath 22 is attached to one side of the first inner sheath 12, the second inner wire core 21 includes a second conductor layer 211 and a second insulating layer 212, the second conductor layer 211 is disposed inside the second inner wire cores 21, the second insulating layer 212 covers the outside of the second conductor layer 211, and the inner surface of the second inner sheath 22 is attached to the outer walls of the two second insulating layers 212.

It should be noted that, two inside sinle silks 21 have certain length, and two inside sinle silks 21 are along its length direction crisscross transposition each other to make two inside sinle silk 21 in close contact with, the cladding of second inner sheath 22 is in two the outside of the inside sinle silk 21 of second, in order to strengthen the stability of two inside sinle silks 21, can play the shielding effect simultaneously, second insulating layer 212 wrap up in the outside of second conductor layer 211, second conductor layer 211 is located the inside of the inside sinle silk 21 of second, the internal surface subsides of second inner sheath 22 are located two the outer wall of second insulating layer 212 can further avoid the inside sinle silk 21 of second to be disturbed, sets up two inside sinle silks 21 and can improve the stability of cable work, avoids moving during operation and receive external interference.

In this embodiment, the third wire group 30 includes two third inner wire cores 31 and a third inner sheath 32, the two third inner wire cores 31 are twisted with each other, the third inner sheath 32 covers the two third inner wire cores 31, and the third inner sheath 32 is respectively attached to the first inner sheath 12 and the second inner sheath 22. The third inner core 31 includes a third conductor layer 311 and a third insulating layer 312, the third conductor layer 311 is disposed inside the third inner core 31, the third insulating layer 312 covers the outside of the third conductor layer 311, and the inner surface of the third inner sheath 32 is attached to the outer walls of the two third insulating layers 312.

Further, two inside sinle silks 31 of third have certain length, and two inside sinle silks 31 of third are along its length direction transposition of crisscross each other to make two inside sinle silk 31 in close contact with of third, third inner sheath 32 cladding in two the outside of the inside sinle silk 31 of third, with the stability of reinforcing two inside sinle silks 31, can play the shielding effect simultaneously, third insulating layer 312 wrap up in the outside of third conductor layer 311, third conductor layer 311 is located the inside of the inside sinle silk 31 of third, the internal surface subsides of third inner sheath 32 are located two the outer wall of third insulating layer 312 can further avoid the inside sinle silk 31 of third to be disturbed, sets up two inside sinle silks 31 of third and can improve the stability of cable work, avoids removing the during operation and receive external disturbance.

In this embodiment, the outer core 40 includes an outer conductor layer 41 and an outer insulation layer 42, the outer insulation layer 42 covers the outer portion of the outer conductor layer 41, one of the outer insulation layers 42 is located between the first inner sheath 12 and the third inner sheath 32, and the other outer insulation layer 42 is located between the two first inner sheaths 12.

The number of the external wire cores 40 is two, the two external wire cores 40 are respectively arranged on two sides of a first wire group 10, and the outer diameters of the external insulating layer 42, the first insulating layer 112, the second insulating layer 212 and the third insulating layer 312 are all 0.8mm-0.9mm, namely, the outer diameters of the first internal wire core 11, the second internal wire core 21, the third internal wire core 31 and the external wire cores 40 are equal, so that the conveying stability of each wire core can be increased. Because the outer layer is provided with weaving layer 60 and tegument 70, so outside sinle silk 40 does not set up the inner sheath again, and two outside sinle silks 40 stagger the setting, can not mutual interference.

In this embodiment, the tensile strength of the outer layer 70 is greater than 16N/mm 2.

Further, in order to enhance the stability and tensile strength of the firefighter-dedicated cable in the moving process, the tensile strength of the outer coating 70 of the present invention is greater than 0.9kgf/mm, and the tensile residual rate after aging is greater than 75%, so that the outer coating 70 has a certain tension and tensile force, and the aging resistance of the outer coating 70 is enhanced. The tensile strength of the outer layer 70 is greater than 16N/mm2, and the pulling speed is 50mm/min, that is, the service life of the outer layer 70 can be prolonged by enhancing the tensile strength of the outer layer 70, so as to ensure that the cable cannot be easily bent or broken in the stretching process.

In this embodiment, the woven layer 60 is made of a mylar material, and the filling member 50 is made of an aramid material. The inner diameter of the outer coating layer 70 is 12mm, the outer diameter of the outer coating layer 70 is 25mm, and the outer coating layer 70 is made of thermoplastic elastic material.

Claims

1. A firefighter-specific cable, comprising:

the second wire group is arranged inside the cable and is arranged close to the first wire group, and one side of the second wire group is attached to one side of the first wire group;

2. A firefighter-specific cable according to claim 1, wherein the cable further includes a ground wire disposed between the second wire set and the third wire set.

3. The firefighter flex cable of claim 1, wherein the first group of wires includes two first inner wires stranded about one another and a first inner jacket wrapped about the first inner wires, the first inner jacket being disposed within the first inner jacket at the first end and the second end.

4. The firefighter-specific cable according to claim 3, wherein the first inner core includes a first conductor layer disposed on an inner portion of the first inner core and a first insulation layer coated on an outer portion of the first conductor layer, and an inner surface of the first inner jacket is attached to outer walls of the first insulation layers.

5. The firefighter flex cable according to claim 3, wherein the second group of wires includes two second inner wires stranded with each other and a second inner sheath covering the two second inner wires, one side of the second inner sheath being attached to one side of the first inner sheath.

6. The firefighter-specific cable according to claim 5, wherein the second inner core includes a second conductor layer disposed inside the second inner core and a second insulation layer coated outside the second conductor layer, the inner surface of the second inner jacket being attached to outer walls of the two second insulation layers.

7. The firefighter-specific cable according to claim 5, wherein the third wire group includes two third inner wires twisted with each other and a third inner sheath covering the outer portions of the two third inner wires, the third inner sheath being attached to the first inner sheath and the second inner sheath, respectively.

8. The firefighter-specific cable of claim 7, wherein the third inner core includes a third conductor layer disposed inside the third inner core and a third insulation layer coated outside the third conductor layer, and wherein the inner surface of the third inner jacket is attached to the outer walls of the third insulation layers.

9. The firefighter-specific cable of claim 7, wherein the outer core includes an outer conductor layer and an outer insulation layer wrapped around the outer conductor layer, one of the outer insulation layers being disposed between the first inner jacket and the third inner jacket, the other of the outer insulation layers being disposed between the first inner jackets.

10. The firefighter-specific cable of claim 1, wherein the jacket has a tensile strength greater than 16N/mm 2.

11. The firefighter-specific cable of claim 1, wherein the braid is formed of a mylar material and the filler element is formed of an aramid material.

12. The firefighter-specific cable according to claim 1, wherein the inner diameter of the outer layer is 12mm, the outer diameter of the outer layer is 25mm, and the outer layer is made of a thermoplastic elastomer.