CN212990751U

CN212990751U - Novel halogen-free low-smoke flame-retardant spraying-resistant impact-resistant fireproof cable

Info

Publication number: CN212990751U
Application number: CN202022446344.9U
Authority: CN
Inventors: 肖张军; 刘登瑞; 何俊华; 金鑫; 何忠东; 邓标; 鲍时安
Original assignee: Anhui Siait Cable Group Co ltd
Current assignee: Anhui Siait Cable Group Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-04-16
Anticipated expiration: 2030-10-27

Abstract

The utility model provides a novel halogen-free low-smoke flame-retardant spraying-resistant impact-resistant fire-resistant cable, which comprises a conductor, the conductor is wrapped with a fire-resistant layer, the fire-resistant layer is extruded with an insulating layer, the conductor, the fire-resistant layer and the insulating layer form an insulating wire core, a plurality of insulating wire cores are twisted into a cable core, the cable core is wrapped with a high flame-retardant polyester wrapping tape, the cover lapping rate of the high flame-retardant polyester belting is 40-50 percent, the impact-resistant layer and the low-smoke halogen-free flame-retardant polyolefin outer sheath are extruded outside the belting, the shock-resistant layer consists of an inner fixed sleeve, an outer buffer sleeve and a plurality of buffer shock-resistant components, the plurality of buffer shock-resistant components are arranged between the inner fixed sleeve and the outer buffer sleeve, and the plurality of buffering impact-resistant components comprise an inner semi-arc block, an outer semi-arc block and a middle shuttle-shaped buffering bulge, and the shuttle-shaped buffering bulge is placed in grooves embedded on the inner semi-arc block and the outer semi-arc block.

Description

Novel halogen-free low-smoke flame-retardant spraying-resistant impact-resistant fireproof cable

Technical Field

The utility model relates to a wire and cable technical field indicates a novel there is not steamed low fire-retardant resistant fire resisting cable that shocks resistance that sprays of cigarette especially.

Background

The halogen-free low-smoke flame-retardant fire-resistant cable has excellent fire resistance, smoke released by the cable during burning is non-toxic, the light transmittance is high, after a fire disaster occurs, a circuit can keep normal operation within a certain time, rescue work is greatly helped, and casualties and property loss can be reduced to the maximum extent. With the development of national economy and the continuous improvement of people's awareness of fire prevention and disaster prevention, halogen-free low-smoke fire-resistant cables have been widely used. In practical application, when the conflagration breaing out, cable structure not only receives the influence of high temperature, still can receive the striking of other articles in the surrounding environment, but current product can not satisfy needs, for this reason, the utility model provides a novel there is not steamed low fire-retardant resistant fire resisting cable that shocks resistance that sprays of cigarette of steamed to solve the problem that above-mentioned exists.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's shortcoming, provide a novel there is not steamed low fire-retardant resistant fire resisting cable that shocks resistance that sprays of cigarette.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a novel fire-retardant resistant fire resisting cable that shocks resistance that sprays of steamed low cigarette, includes the conductor, the conductor winds the package flame retardant coating outward, and the flame retardant coating is crowded package insulating layer outward, conductor, flame retardant coating and insulating layer constitute insulation core, and a plurality of insulation core strands become the cable core, and the cable core winds the high fire-retardant polyester band of package outward, and this high fire-retardant polyester band take the lid rate to be 40% ~ 50%, crowded package impact resistance layer and the fire-retardant polyolefin oversheath of low smoke and zero halogen outward in the band, the impact resistance layer comprises interior fixed cover, outer cushion collar and a plurality of buffering subassembly that shocks resistance, and a plurality of buffering subassembly that shocks resistance sets up between interior fixed cover and outer cushion collar, and a plurality of buffering subassembly that shocks resistance includes inside and outside two semi-arc blocks and middle fusiformis buffering swell, fusiformis buffering swell places and inlays.

As an optimized technical scheme, fill fire-retardant inorganic paper rope between cable core and the high fire-retardant polyester band.

As an optimal technical scheme, one side that interior fixed cover and outer cushion collar are relative all is equipped with a plurality of arc walls of placing the buffering subassembly that shocks resistance.

As an optimal technical scheme of the utility model, all be equipped with a plurality of pressure-bearing holes on interior fixed cover and the outer buffer sleeve.

As an optimized technical scheme of the utility model, the conductor adopts the 2 types of transposition copper conductors that accord with GB/T3956, is stranded by 7 round monofilament and sticiss to form.

As an optimal technical scheme of the utility model, the flame retardant coating adopts double-deck synthetic fluorophlogopite area to overlap around the package, takes the lid rate 45% ~ 55% around the package.

As an optimized technical scheme of the utility model, the insulating layer adopts irradiation crosslinked polyethylene insulating material to make.

As an optimized technical proposal of the utility model, the inner fixed sleeve and the outer buffer sleeve are made of ceramic ring silicon rubber.

The utility model discloses the beneficial effect who reaches is: the utility model provides a novel there is not steamed low fire-retardant resistant fire resisting cable that shocks resistance that sprays of cigarette has good refractiveness, fire resistance and shock resistance.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

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

FIG. 2 is a schematic view of the structure of the impact resistant layer of the present invention;

FIG. 3 is a schematic structural view of the buffering and impact-resisting assembly of the present invention;

reference numbers in the figures: 1. a conductor; 2. a refractory layer; 3. an insulating layer; 4. high flame retardant polyester wrapping tape; 5. an impact resistant layer; 6. a low-smoke halogen-free flame-retardant polyolefin outer sheath; 7. an inner fixing sleeve; 8. an outer cushion collar; 9. a semi-arc block; 10. a shuttle-shaped buffer bulge; 11. an arc-shaped slot; 12. a pressure-bearing hole; 13. fire-retardant inorganic paper rope.

Detailed Description

The terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like in the specification indicate orientations or positional relationships based on those 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b): as shown in fig. 1-3, the utility model provides a novel fire-retardant resistant spraying of steamed low cigarette fire-resistant fire resisting cable that shocks resistance, including conductor 1, conductor 1 winds outward and wraps flame retardant coating 2, and flame retardant coating 2 extrudes outward and wraps insulating layer 3, conductor 1, flame retardant coating 2 and insulating layer 3 constitute the insulation core, and a plurality of insulation core strands into the cable core, and the cable core winds outward and wraps high fire-retardant polyester band 4, and the overlap rate of this high fire-retardant polyester band 4 is 40% -50%, the band 4 extrudes outward and wraps impact layer 5 and low cigarette no halogen fire-resistant polyolefin oversheath 6, constitutes low cigarette no halogen fire-resistant spraying, impact resistance type fire resisting cable that shocks resistance; the shock resistance layer 5 is by interior fixed cover 7, outer cushion collar 8 and a plurality of buffering subassembly of shocking resistance constitute, a plurality of including the buffering subassembly of shocking resistance sets up between fixed cover 7 and outer cushion collar 8, and a plurality of buffering subassembly of shocking resistance include inside and outside two semi-arc blocks 9 and middle fusiformis buffering swell 10, fusiformis buffering swell 10 is placed in the recess of inlaying establishing on inside and outside two semi-arc blocks 9, and shock resistance is good.

Further, a flame-retardant inorganic paper rope 13 is filled between the cable core and the high-flame-retardant polyester wrapping tape 4.

Furthermore, one side of the inner fixed sleeve 7 opposite to one side of the outer buffer sleeve 8 is provided with a plurality of arc-shaped grooves 11 for placing buffer impact-resistant components.

Furthermore, a plurality of pressure-bearing holes 12 are formed in the inner fixing sleeve 7 and the outer buffering sleeve 8.

Further, conductor 1 adopts the 2 types of stranded copper conductors that accord with GB/T3956, is stranded by 7 round monofilament and sticiss to form, and flame retardant coating 2 closely attaches on the surface of conductor 1, has reduced because of conductor 1 self unevenness cause in or layer 2 and insulating layer 3's clearance, is favorable to electric field distribution even, strengthens cable insulation's electrical property, simultaneously, has also practiced thrift the quantity of mica tape, effectively reduce cost.

Furthermore, the fire-resistant layer 2 is lapped by adopting double-layer synthetic fluorophlogopite tapes, the lapping coverage rate is 45% -55%, and the synthetic fluorophlogopite tapes are high in safety, good in high-temperature resistance and good in electrical insulation performance.

Furthermore, the insulating layer 3 is made of radiation cross-linked polyethylene insulating material, so that the insulating layer has good heat resistance, can improve the current-carrying capacity of the cable, has excellent insulating property and electrical property, has high mechanical strength, flame retardant property and safety, and is beneficial to prolonging the service life of the cable.

Further, the inner fixing sleeve 7 and the outer buffer sleeve 8 are both made of ceramic ring silicon rubber.

Furthermore, the low-smoke halogen-free flame-retardant polyolefin outer sheath 6 is formed by taking polyolefin as a base material and adding proper flame retardant, smoke suppressor, anti-dripping agent and other compounding agents according to the performance requirements of the formula and blending, and has good flame-retardant effect.

The above embodiments are merely to describe the preferred embodiments of the present invention, and are not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. The utility model provides a novel fire-resistant fire resisting cable that shocks resistance that sprays of steamed low cigarette fire-retardant, a serial communication port, including conductor (1), conductor (1) is outer around package flame retardant coating (2), and flame retardant coating (3) are crowded outward in flame retardant coating (2), conductor (1), flame retardant coating (2) and insulating layer (3) constitute insulation core, and a plurality of insulation core strands into the cable core, and the cable core is outer around wrapping high fire-retardant polyester band (4), and the cover rate of taking of this high fire-retardant polyester band (4) is 40% -50%, band (4) are outer crowded package impact resistance layer (5) and low cigarette fire-retardant polyolefin oversheath (6) of steamed low cigarette, impact resistance layer (5) are constituteed by interior fixed cover (7), outer cushion collar (8) and a plurality of buffering impact resistance subassembly sets up between interior fixed cover (7) and outer cushion collar (8), and a plurality of buffering impact resistance subassemblies include inside and outside two half arc blocks (9) and middle fusiform buffering package (10) of ) The shuttle-shaped buffering bulges (10) are placed in grooves embedded in the inner and outer semi-arc blocks (9).

2. The novel halogen-free low-smoke flame-retardant spraying-resistant impact-resistant fire-resistant cable according to claim 1, characterized in that a flame-retardant inorganic paper rope (13) is filled between the cable core and the high-flame-retardant polyester wrapping tape (4).

3. The novel halogen-free low-smoke flame-retardant spraying-resistant impact-resistant fire-resistant cable as claimed in claim 1, wherein the opposite sides of the inner fixing sleeve (7) and the outer buffer sleeve (8) are provided with a plurality of arc-shaped grooves (11) for placing buffer impact-resistant components.

4. The novel halogen-free low-smoke flame-retardant spraying-resistant impact-resistant fire-resistant cable as claimed in claim 1, wherein the inner fixing sleeve (7) and the outer buffer sleeve (8) are provided with a plurality of pressure-bearing holes (12).

5. The novel halogen-free low-smoke flame-retardant spray-resistant impact-resistant fire-resistant cable as claimed in claim 1, wherein the conductor (1) is a class 2 stranded copper conductor conforming to GB/T3956 and is formed by stranding and compressing 7 round monofilaments.

6. The novel halogen-free low-smoke flame-retardant spraying-resistant impact-resistant fire-resistant cable as claimed in claim 1, wherein the fire-resistant layer (2) is formed by overlapping a double-layer synthetic fluorophlogopite tape, and the overlapping rate of the overlapping is 45% -55%.

7. The novel halogen-free low-smoke flame-retardant spraying-resistant impact-resistant fire-resistant cable as claimed in claim 1, wherein the insulating layer (3) is made of radiation cross-linked polyethylene insulating material.

8. The novel halogen-free low-smoke flame-retardant spraying-resistant impact-resistant fire-resistant cable as claimed in claim 1, wherein the inner fixing sleeve (7) and the outer buffer sleeve (8) are both made of ceramic ring silicone rubber.