CN214753071U

CN214753071U - Double-deck flame retarded cable with anti-interference function

Info

Publication number: CN214753071U
Application number: CN202120771235.6U
Authority: CN
Inventors: 谭中全
Original assignee: Chongqing Qiaodu Wire And Cable Co ltd
Current assignee: Chongqing Qiaodu Cable Group Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-11-16
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a double-layer flame-retardant cable with anti-interference function, which comprises a PVC outer sheath, wherein a PVC inner sheath is arranged at the inner side of the PVC outer sheath, a spiral groove is arranged on the inner side surface of the PVC outer sheath, a spiral steel strip is arranged in the spiral groove, an aluminum foil layer and a mica tape layer are arranged between the PVC outer sheath and the PVC inner sheath, a plurality of partition plates are arranged at equal intervals at the inner side of the PVC inner sheath, the PVC inner sheath with the partition plates is designed in the utility model, a supporting metal ring with a metal support plate is designed in the PVC inner sheath, so that the PVC inner sheath has good support, in addition, a thread groove matched with the spiral steel strip is designed at the inner side of the PVC outer sheath, so that the spiral steel strip is embedded in the spiral groove, the PVC outer sheath also has good support, and the whole cable has good extrusion resistance by matching with the PVC inner sheath, in addition, the aluminum foil layer is designed, so that a good anti-interference effect can be achieved.

Description

Double-deck flame retarded cable with anti-interference function

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to double-deck flame retarded cable with anti-interference function.

Background

Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like. The cable is possibly extruded by external force in the using process, so that the cable is deformed, and the existing cable is poor in anti-interference performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-deck flame retarded cable with anti-interference function to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a double-deck flame retarded cable with anti-interference function, includes the PVC oversheath, the inboard of PVC oversheath is provided with the PVC inner sheath, the inboard surface of PVC oversheath is provided with the helicla flute, be provided with the spiral steel band in the helicla flute, be provided with aluminium foil layer and mica tape layer between PVC oversheath and the PVC inner sheath, the inboard equidistance of PVC inner sheath is provided with a plurality of division boards, forms a cavity between two adjacent division boards, and is provided with the conductor in the cavity, it has the filling layer to fill between conductor and the cavity, the inside of PVC inner sheath is provided with the support becket, the inboard surface and the division board department of corresponding of support becket are provided with the metal extension board.

Preferably, a connecting net layer is arranged inside the PVC outer sheath, and a plurality of barb protrusions are arranged on the connecting net layer at equal intervals.

Preferably, the outer surface of the PVC outer sheath is provided with an acrylic acid flame-retardant coating.

Preferably, the PVC inner sheath and the division plate are of an integrated structure, the other end of the division plate is connected to a ring, and a cylindrical rod is arranged in the ring.

Preferably, the inner side of the conductor is a copper wire, and the outer side of the conductor is provided with an insulating wrapping tape and an insulating sleeve.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses well design has the PVC inner sheath of division board to the inside design of PVC inner sheath has had the support becket of metal backup plate, make the PVC inner sheath have good support nature, PVC oversheath inboard in addition designed with spiral steel band assorted thread groove, make spiral steel band embedding helicla flute in, make the PVC oversheath also have under the good support, cooperation PVC inner sheath makes whole cable possess good resistant extrusion performance, the aluminium foil layer has been designed in addition, can play good anti-interference.

Drawings

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

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

FIG. 3 is a schematic cross-sectional view of the outer sheath of the present invention;

in the figure: 1. a PVC outer sheath; 2. a spiral steel belt; 3. an aluminum foil layer; 4. a mica tape layer; 5. a PVC inner sheath; 6. a support metal ring; 7. a filling layer; 8. a conductor; 9. a partition plate; 10. connecting the net layers; 11. a helical groove; 12. the barb is convex; 13. a metal support plate.

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.

Example 1

Referring to fig. 1 to 3, the present invention provides a technical solution: a double-layer flame-retardant cable with an anti-interference function comprises a PVC outer sheath 1, a PVC inner sheath 5 is arranged on the inner side of the PVC outer sheath 1, a spiral groove 11 is arranged on the inner side surface of the PVC outer sheath 1, a spiral steel strip 2 is arranged in the spiral groove 11 and plays roles of supporting and fire preventing, an aluminum foil layer 3 and a mica tape layer 4 are arranged between the PVC outer sheath 1 and the PVC inner sheath 5, the aluminum foil layer 3 has an anti-interference function, the mica tape layer 4 has a flame-retardant function, a plurality of partition plates 9 are arranged on the inner side of the PVC inner sheath 5 at equal intervals, a cavity is formed between every two adjacent partition plates 9, and a conductor 8 is arranged in the cavity, a filling layer 7 is filled between the conductor 8 and the cavity, a supporting metal ring 6 is arranged inside the PVC inner sheath 5, and a metal support plate 13 is arranged on the inner side surface of the supporting metal ring 6 corresponding to the partition plate 9, so that the PVC inner sheath has good supporting performance.

In this embodiment, preferably, a connection mesh layer 10 is disposed inside the PVC outer sheath 1, and in order to achieve a tensile effect, a plurality of inverted hook protrusions 12 are disposed on the connection mesh layer 10 at equal intervals to ensure a firm connection.

In this embodiment, preferably, the outer surface of the PVC outer sheath 1 is provided with an acrylic flame retardant coating for flame retardant.

In this embodiment, preferably, the PVC inner sheath 5 and the partition plate 9 are of an integral structure, the other end of the partition plate 9 is connected to a ring, and a cylindrical rod is arranged in the ring to support.

In this embodiment, preferably, the inner side of the conductor 8 is a copper wire, and the outer side of the conductor 8 is provided with an insulating wrapping tape and an insulating sleeve for protecting and insulating functions.

The utility model discloses a theory of operation and use flow: the utility model discloses in designed PVC inner sheath 5 with division board 9, and the inside design of PVC inner sheath 5 has the support becket 6 that has metal extension board 13, make PVC inner sheath 5 have good support nature, 1 inboard design of PVC oversheath in addition with 2 assorted thread grooves 11 of spiral steel band, make spiral steel band 2 imbed in the helicla flute 11, make PVC oversheath 1 also have under the good support, cooperation PVC inner sheath 5 makes whole cable possess good resistant extrusion performance, aluminium foil layer 3 has been designed in addition, can play good interference killing feature.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a double-deck flame retarded cable with anti-interference function, includes PVC oversheath (1), its characterized in that: the PVC cable is characterized in that a PVC inner sheath (5) is arranged on the inner side of the PVC outer sheath (1), a spiral groove (11) is formed in the inner side surface of the PVC outer sheath (1), a spiral steel strip (2) is arranged in the spiral groove (11), an aluminum foil layer (3) and a mica tape layer (4) are arranged between the PVC outer sheath (1) and the PVC inner sheath (5), a plurality of partition plates (9) are arranged on the inner side of the PVC inner sheath (5) at equal intervals, a cavity is formed between every two adjacent partition plates (9), a conductor (8) is arranged in the cavity, a filling layer (7) is filled between the conductor (8) and the cavity, a supporting metal ring (6) is arranged inside the PVC inner sheath (5), and a metal support plate (13) is arranged on the inner side surface of the supporting metal ring (6) and the corresponding position of the partition plates (9).

2. The double-layer flame-retardant cable with the anti-interference function according to claim 1, wherein: the PVC outer sheath (1) is internally provided with a connecting net layer (10), and the connecting net layer (10) is equidistantly provided with a plurality of barb bulges (12).

3. The double-layer flame-retardant cable with the anti-interference function according to claim 1, wherein: the outer surface of the PVC outer sheath (1) is provided with a layer of acrylic acid flame-retardant coating.

4. The double-layer flame-retardant cable with the anti-interference function according to claim 1, wherein: PVC inner sheath (5) and division board (9) formula structure as an organic whole, the other end of division board (9) all connects on a ring, and is provided with a cylinder pole in the ring.

5. The double-layer flame-retardant cable with the anti-interference function according to claim 1, wherein: the inner side of the conductor (8) is a copper wire, and an insulating wrapping tape and an insulating sleeve are arranged on the outer side of the conductor (8).