CN217239132U

CN217239132U - Crosslinked low-halogen flame-retardant armored cable

Info

Publication number: CN217239132U
Application number: CN202220589027.9U
Authority: CN
Inventors: 冯行根; 蒋乐鸣
Original assignee: Wuxi Huangpu Electric Wire & Cable Co ltd
Current assignee: Wuxi Huangpu Electric Wire & Cable Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-08-19
Anticipated expiration: 2032-03-17

Abstract

The utility model provides a cross-linking low-halogen flame-retardant armored cable, which comprises a cable core, a core frame assembly and a wrapping layer, wherein the core frame assembly comprises a core column, wing plates and a baffle plate, the wing plates are arranged on the core column, the cable core is arranged between two adjacent wing plates, a plurality of inserting grooves are arranged on two sides of each wing plate, the inserting grooves are arranged along the circumferential direction of the core column, two ends of the baffle plate are inserted in the inserting holes, the baffle plate is also attached to the cable core, the cable core is pressed and attached to the wing plates and the core column by the baffle plate, the wrapping layer is arranged on the wing plates, the wing plates with the inserting grooves and the baffle plate inserted between the wing plates are additionally arranged between the cable cores, the position of the baffle plate on the wing plates can be changed by the inserting grooves, thereby the position of the baffle plate is changed according to the diameter of the cable core, the baffle plate can press the cable core to the core column and the wing plates, and the core frame assembly can be suitable for various cables, the production cost of the cable is reduced, and the laying cost of the power grid is reduced.

Description

Crosslinked low-halogen flame-retardant armored cable

Technical Field

The utility model relates to a technical field such as wire and cable especially relates to a fire-retardant armoured cable of crosslinked hypohaline.

Background

In the production process of cable, for increasing the stability that the cable core was deposited in the cable, often can increase the core frame in the cable, hold through the pressure of core frame to the cable core, guarantee the cable core position in the cable, and the strand number of copper wire conductor is different in the cable core, therefore the diameter of cable core is different, often need produce corresponding core frame alone according to the diameter of cable core, when the demand of cable is less, the cost of cable manufacture will be too high, make the electric wire netting lay the cost increase.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the cost of the cable core frame is high, and the laying cost of the power grid is increased.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a fire-retardant armoured cable of low halogen of cross-linking, includes the cable core, installs core frame subassembly around the cable core and enclose to establish the parcel layer outside the cable core subassembly, the cable core is twisted with the fingers the system by the stranded copper wire and forms, core frame subassembly includes that stem, fixed mounting are in pterygoid lamina and alternate on the stem baffle between the pterygoid lamina, the pterygoid lamina is followed the circumference of stem is evenly laid, the cable core setting is two adjacent between the pterygoid lamina, all open on the both sides of pterygoid lamina and have a plurality of slots of wearing, the slot of wearing is followed the circumference setting of stem, the both ends of baffle alternate in the slot of wearing, the baffle still laminate extremely on the cable core, the cable core receives the pressing of baffle holds the laminating extremely pterygoid lamina with on the stem, the parcel layer is established on the pterygoid lamina.

Furthermore, keep away from on the pterygoid lamina the protruding board that blocks that is equipped with of tip of stem, block the board and follow the circumference setting of stem, the parcel layer is established along the circumferencial direction package block on the board.

Furthermore, the wrapping layer is an insulating cover formed by weaving PVC plastic strips.

Furthermore, a shaping steel wire is arranged at the circle center of the core column and limits the bending angle of the core column.

Furthermore, fireproof mica is arranged inside and outside the baffle, the fireproof mica is filled between the baffle and the wrapping layer, and the fireproof mica is also filled between the cable core, the wing plate and the baffle.

Furthermore, an armor layer is arranged outside the wrapping layer and is formed by wrapping a copper sheet. Furthermore, a rubber layer is sleeved outside the armor layer and is made of artificial rubber.

The beneficial effects of the utility model are that, set up the core frame subassembly around the cable core of cable, set up the slot of wearing on the pterygoid lamina in the core frame subassembly, can select the slot of alternating of relative position according to the size of cable core, alternate the baffle to the corresponding slot of alternating in, can suppress the cable core to stem and pterygoid lamina under the blockking of baffle on, can select the corresponding slot of alternating promptly according to the size of cable core, reduce the process of the independent production of core frame in the cable, thereby reduce the manufacturing cost of cable, reduce the laying cost of electric wire netting.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a cross-sectional view of a cross-linked low-halogen flame-retardant armored cable of the present invention;

in the figure: the cable comprises a cable core 1, a core frame assembly 2, a wrapping layer 3, a core column 21, a wing plate 22, a baffle 23, an inserting groove 24, a blocking plate 25, a shaping steel wire 26, fireproof mica 27, an armor layer 28 and a rubber layer 29.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

As shown in figure 1, the utility model provides a fire-retardant armoured cable of crosslinked low halogen, include cable core 1, install core frame subassembly 2 around the cable core 1 and enclose and establish in the outer parcel 3 of cable core 1 subassembly, cable core 1 is twisted with the system by stranded copper wire and forms, core frame subassembly 2 includes stem 21, the pterygoid lamina 22 of fixed mounting on stem 21 and alternates the baffle 23 between the pterygoid lamina 22, pterygoid lamina 22 is followed evenly lays in the circumference of stem 21, cable core 1 sets up between two adjacent pterygoid lamina 22, a plurality of slots 24 that wear have all been opened on the both sides of pterygoid lamina 22, slot 24 that wear sets up along the circumference of stem 21, the both ends of baffle 23 are worn to insert in slot 24, baffle 23 still laminate to on cable core 1, cable core 1 receive the pressing of baffle 23 is held to laminate to pterygoid lamina 22 with on stem 21, the wrapping layer 3 is wrapped on the wing plate 22.

Install pterygoid lamina 22 that has wearing slot 24 on stem 21, through the position of the relative cable core 1 of the slot 24 restriction baffle 23 of wearing on the pterygoid lamina 22, when 1 diameter of cable core is less, can alternate baffle 23 to in being close to the interlude groove 24 of stem 21, and when 1 diameter of cable core is great, can alternate baffle 23 to the interlude groove 24 of keeping away from stem 21 in, can change the position of the relative pterygoid lamina 22 of baffle 23 according to the diameter of cable core 1, thereby make core frame subassembly 2 applicable in the cable core 1 of multiple size, promptly in the production process of small batch volume cable, avoid carrying out the isolated production core frame according to the size of cable core 1, thereby can reduce the manufacturing cost of cable, reduce the use cost that the electric wire netting was laid.

Preferably, a blocking plate 25 is convexly arranged at the end part, far away from the core column 21, of the wing plate 22, the blocking plate 25 is arranged along the circumferential direction of the core column 21, and the wrapping layer 3 is wrapped on the blocking plate 25 along the circumferential direction. And a blocking plate 25 is additionally arranged at the end part of the wing plate 22, and the blocking plate 25 is arranged along the circumferential direction, so that the wrapping layer 3 can be uniformly wound on the cable core 1.

Preferably, the wrapping layer 3 is an insulating cover formed by weaving PVC plastic strips. The insulating cover woven by the PVC plastic strips is arranged outside the cable core 1, so that the cable core 1 can be prevented from contacting with the outside, the electric leakage phenomenon is avoided, and the use safety of the cable is improved.

Preferably, a shaping steel wire 26 is arranged at a circle center position of the stem 21, and the shaping steel wire 26 limits a bending angle of the stem 21. The yield strength of the cable can be improved by additionally arranging the shaping steel wire 26, so that the bending angle of the cable is limited, and the cable is prevented from being influenced by excessive bending.

Preferably, the inside and the outside of the baffle 23 are both provided with fireproof mica 27, the fireproof mica 27 is filled between the baffle 23 and the wrapping layer 3, and the fireproof mica 27 is also filled between the cable core 1, the wing plate 22 and the baffle 23. The fireproof mica 27 is additionally arranged around the cable core 1, so that the cable spontaneous combustion phenomenon caused by the resistance heat of the cable can be effectively avoided, and the normal use of the cable core 1 can be ensured.

Preferably, an armor layer 28 is arranged outside the wrapping layer 3, and the armor layer 28 is formed by wrapping a copper sheet. The armor layer 28 is additionally arranged outside the wrapping layer 3, and the use of the cable core 1 can be protected by means of the hard characteristic of the armor layer 28, so that the damage of factors such as external damp insect bite can be avoided.

Preferably, the armor layer 28 is sleeved with a rubber layer 29, the rubber layer 29 is made of elastomer, and the rubber layer 29 can protect the armor layer 28 from being influenced by external power, namely, the cable is prevented from being damaged by power such as lightning stroke.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.

Claims

1. A cross-linked low-halogen flame-retardant armored cable is characterized in that: the cable comprises a cable core (1), a core frame assembly (2) arranged around the cable core (1) and a wrapping layer (3) arranged outside the cable core (1) in a surrounding manner, wherein the cable core (1) is formed by twisting a plurality of strands of copper wires, the core frame assembly (2) comprises a core column (21), wing plates (22) fixedly arranged on the core column (21) and baffle plates (23) inserted between the wing plates (22), the wing plates (22) are uniformly distributed along the circumferential direction of the core column (21), the cable core (1) is arranged between two adjacent wing plates (22), a plurality of inserting grooves (24) are formed in two sides of each wing plate (22), the inserting grooves (24) are formed along the circumferential direction of the core column (21), two ends of each baffle plate (23) are inserted into the inserting grooves (24), and the baffle plates (23) are further attached to the cable core (1), the cable core (1) is pressed and attached to the wing plate (22) and the core column (21) by the baffle (23), and the wrapping layer (3) is wrapped on the wing plate (22).

2. A crosslinked, low-halogen, flame-retardant armored cable according to claim 1, wherein: keep away from on pterygoid lamina (22) the protruding board (25) that blocks that is equipped with of tip of stem (21), block board (25) and follow the circumference setting of stem (21), parcel layer (3) are established along the circumferencial direction package block on the board (25).

3. A crosslinked, low-halogen, flame-retardant armored cable according to claim 1, wherein: the wrapping layer (3) is an insulating cover formed by weaving PVC plastic strips.

4. A crosslinked, low-halogen, flame-retardant armored cable according to claim 1, wherein: the bending die is characterized in that a shaping steel wire (26) is arranged at the circle center position of the core column (21), and the shaping steel wire (26) limits the bending angle of the core column (21).

5. A crosslinked, low-halogen, flame-retardant armored cable according to claim 1, wherein: fireproof mica (27) is arranged inside and outside the baffle (23), the fireproof mica (27) is filled between the baffle (23) and the wrapping layer (3), and the fireproof mica (27) is also filled between the cable core (1), the wing plate (22) and the baffle (23).

6. A crosslinked, low-halogen, flame-retardant armored cable according to claim 1, wherein: an armor layer (28) is arranged outside the wrapping layer (3), and the armor layer (28) is formed by wrapping a copper sheet.

7. A crosslinked, low-halogen, flame-retardant armored cable according to claim 6, wherein: the armor layer (28) is sleeved with a rubber layer (29), and the rubber layer (29) is made of artificial rubber.