CN214796863U

CN214796863U - Flame-retardant shielding control cable

Info

Publication number: CN214796863U
Application number: CN202121268127.3U
Authority: CN
Inventors: 姜彬; 赵正勇; 陈玮; 周体贵; 徐牛林
Original assignee: Anhui Longlian Intelligent Photoelectric Co ltd
Current assignee: Anhui Longlian Intelligent Photoelectric Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-11-19
Anticipated expiration: 2031-06-07

Abstract

The utility model provides a flame-retardant shielding control cable, which comprises a wire core, a wrapping tape, a shielding layer and an outer sheath, the wire core comprises a conductor and an insulating layer coated outside the conductor, the insulating layer is externally wrapped with a wrapping tape, the wrapping band is externally provided with a shielding layer, an outer sheath is arranged outside the shielding layer and consists of an inner protective layer and an outer protective layer, and a flame-retardant buffer piece is arranged between the inner protective layer and the outer protective layer, the flame-retardant buffer piece comprises an inner pressure-resistant shell, an outer pressure-resistant shell, an elastic piece and a flame-retardant filling rope, the inner compression-resistant shell is movably embedded in the first groove at the inner side of the outer protective layer, the outer compression-resistant shell is movably embedded in the second groove at the outer side of the inner protective layer, the elastic piece is arranged between the inner pressure-resistant shell and the outer pressure-resistant shell, the inner pressure-resistant shell and the outer pressure-resistant shell are connected together, and the flame-retardant filling rope is filled in inner cavities of the inner pressure-resistant shell and the outer pressure-resistant shell.

Description

Flame-retardant shielding control cable

Technical Field

The utility model relates to a wire and cable technical field indicates a fire-retardant shielding control cable especially.

Background

The cable is usually a cable similar to the rope twisted by several or several groups of wires (at least two in each group), each group of wires are insulated from each other and twisted around a center, the whole outside is wrapped with a highly insulated covering layer, a plurality of insulated wires are erected in the air or installed underground or underwater for telecommunication or power transmission, one or more insulated conductive wire cores are arranged in a sealed sheath to form an insulated wire, a protective covering layer can be added outside the insulated wire for transmitting, distributing electric energy or transmitting electric signals, the difference between the insulated wire and a common wire is mainly larger in size and more complex in structure, but the existing cable has poorer flame retardant effect and shorter service life, when in use, the cable is easy to cause fire disaster due to cable combustion, the potential safety hazard is improved, and harm is caused to people; therefore, the utility model provides a fire-retardant shielding control cable 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 fire-retardant shielding control cable.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a fire-retardant shielding control cable, includes the sinle silk, around band, shielding layer and oversheath, the sinle silk includes the conductor and the insulating layer of cladding outside the conductor, the insulating layer is around the band around the package outward, set up the shielding layer around the band, the shielding layer is equipped with the oversheath outward, the oversheath comprises interior sheath and outer jacket, and sets up fire-retardant bolster between interior sheath and the outer jacket, fire-retardant bolster includes interior resistance to compression shell, outer resistance to compression shell, elastic component and fire-retardant filler rope, interior resistance to compression shell activity is inlayed and is established in the inboard recess of outer sheath, outer resistance to compression shell activity is inlayed and is established in the recess No. two in the sheath outside including, between resistance to compression shell and the outer shell including the elastic component is installed, links together interior resistance to compression shell and outer resistance to compression shell, fire-retardant filler rope is filled in the inner chamber of resistance to compression shell and outer resistance to compression shell.

As an optimized technical proposal of the utility model, a plurality of wear-resistant blocks are arranged outside the outer sheath.

As an optimized technical scheme of the utility model, the conductor is the copper conductor.

As an optimized technical scheme of the utility model, the insulating layer is the polyvinyl chloride insulating layer.

As an optimal technical scheme of the utility model, it makes around the package to wind the tape for the polyester area.

As an optimized technical scheme of the utility model, the shielding layer is woven for the copper wire and is formed.

As an optimized technical proposal of the utility model, the outer sheath is made of flame-retardant polyvinyl chloride sheath material.

The utility model discloses the beneficial effect who reaches is: the utility model provides a fire-retardant shielding control cable, through the oversheath that sets up and the fire-retardant packing rope that fills in the inner chamber of interior pressure shell and outer pressure shell, strengthen the fire behavior of cable, improved the fire behavior of cable, reduced the use potential safety hazard of cable;

through the flame-retardant buffer piece, the pressure applied to the cable can be gradually reduced layer by layer, the internal structure of the cable is protected from being damaged by the pressure, and the service life of the cable is prolonged.

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 outer sheath of the present invention;

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

reference numbers in the figures: 1. wrapping a tape; 2. a shielding layer; 3. an outer sheath; 4. a conductor; 5. an insulating layer; 6. an inner protective layer; 7. an outer jacket; 8. an inner pressure resistant shell; 9. an outer pressure resistant shell; 10. an elastic member; 11. a flame retardant filler rope; 12. a first groove; 13. a second groove; 14. and (7) a wear-resistant block.

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 flame-retardant shielding control cable, including sinle silk, around band 1, shielding layer 2 and oversheath 3, the sinle silk includes conductor 4 and the insulating layer 5 of cladding outside conductor 4, the insulating layer 5 is wound around band 1 outward, set up shielding layer 2 outside band 1, shielding layer 2 is equipped with oversheath 3 outward, oversheath 3 comprises inner sheath 6 and outer sheath 7, and sets up the flame-retardant bolster between inner sheath 6 and outer sheath 7, the flame-retardant bolster includes interior crushing shell 8, outer crushing shell 9, elastic component 10 and fire-retardant packing rope 11, the activity of interior crushing shell 8 inlays and establishes in No. one recess 12 of the inboard of outer sheath 7, the activity of outer crushing shell 9 inlays and establishes in No. two recesses 13 of the outside of inner sheath 6, elastic component 10 installs between interior crushing shell 8 and outer crushing shell 9, the inner pressure-resistant shell 8 and the outer pressure-resistant shell 9 are connected together, the flame-retardant filling rope 11 is filled in the inner cavities of the inner pressure-resistant shell 8 and the outer pressure-resistant shell 9, and the flame-retardant filling rope 11 is beneficial to improving the flame retardant property of the cable;

the pressure generated by the cable in the using process is conducted to the flame-retardant buffer piece through the outer protective layer 7 to decompose the pressure, so that the effect of reducing the pressure is achieved;

when the pressure is reduced, the pressure is firstly transmitted to the elastic element 10 through the inner pressure-resistant shell 8, and the elastic element 10 deforms to reduce the pressure; meanwhile, the inner pressure-resistant shell 8 and the outer pressure-resistant shell 9 move in the first groove 12 and the second groove 13, and the pressure on the cable is decomposed again.

Furthermore, a plurality of wear-resistant blocks 14 are arranged outside the outer sheath 3.

Further, the conductor 4 is a copper conductor.

Further, the insulating layer 5 is a polyvinyl chloride insulating layer.

Further, the wrapping tape 1 is made of polyester tape in a wrapping mode.

Furthermore, the shielding layer 2 is formed by weaving copper wires.

Further, the outer sheath 3 is made of flame-retardant polyvinyl chloride sheath material.

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 fire-retardant shielding control cable, its characterized in that includes the sinle silk, around band (1), shielding layer (2) and oversheath (3), the sinle silk includes conductor (4) and cladding insulating layer (5) outside conductor (4), insulating layer (5) are outer around wrapping band (1), set up shielding layer (2) outside around band (1), shielding layer (2) are equipped with oversheath (3) outward, oversheath (3) comprise inner sheath (6) and outer sheath (7), and set up fire-retardant bolster between inner sheath (6) and outer sheath (7), fire-retardant bolster includes interior crushing shell (8), outer crushing shell (9), elastic component (10) and fire-retardant packing rope (11), interior crushing shell (8) activity is inlayed and is established in recess (12) the inboard of outer sheath (7), outer crushing shell (9) activity is inlayed and is established in recess (13) No. two in the outer sheath (6) outside, the elastic piece (10) is arranged between the inner pressure-resistant shell (8) and the outer pressure-resistant shell (9) to connect the inner pressure-resistant shell (8) and the outer pressure-resistant shell (9) together, and the flame-retardant filling rope (11) is filled in the inner cavities of the inner pressure-resistant shell (8) and the outer pressure-resistant shell (9).

2. A flame retardant shielded control cable as claimed in claim 1, wherein the outer sheath (3) is provided with a plurality of abrasion resistant blocks (14) thereon.

3. A flame retardant shielded control cable according to claim 1, wherein the conductor (4) is a copper conductor.

4. A flame retardant shielded control cable according to claim 1, wherein the insulating layer (5) is a polyvinyl chloride insulating layer.

5. A flame retardant shielded control cable according to claim 1, wherein the tape (1) is a polyester tape.

6. A flame retardant shielded control cable according to claim 1, wherein the shielding layer (2) is braided of copper wires.

7. A flame retardant shielded control cable as claimed in claim 1, wherein said outer sheath (3) is made of flame retardant polyvinyl chloride sheath material.