Fireproof composite power cable

Abstract

The utility model discloses a fire-resistant composite power cable, comprising a fire-resistant protective layer, a reinforcing layer fixedly wrapped in the fire-resistant protective layer, a supporting layer fixedly wrapped in the reinforcing layer, a wire core fixedly embedded in the supporting layer, and a supporting ring fixedly connected to the outer surface of the fire-resistant protective layer. Spiral reinforcing strips are fixedly connected to the outer surface of the fireproof protective layer, tensile spokes are fixedly embedded in the spiral reinforcing strips, positioning heads are fixedly connected to one sides of the tensile spokes, arc-shaped grooves are formed in one sides of the positioning heads, and the arc-shaped grooves are connected to the outer surface of the fireproof protective layer in a clamped mode. The inner side of the arc-shaped groove is fixedly connected with a bonding block, the bonding block is fixedly bonded to the outer surface of the fire-resistant protection layer, and in combination with the stretch-resistant spokes embedded inside, positioning reinforcement can be achieved from the outside, the structural strength is improved, elastic supporting can be achieved, the compression resistance effect is improved, and production and use are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of power cable more specifically, relate to a fire -resistant composite power cable. BACKGROUND

[0002] The super six data cables are designed to operate normally at high temperature from the beginning, and the feature is that a cross partition is added in the middle of the four wires. The existing super six data cables only have the outer sheath made of polyvinyl chloride material with fireproof and flame-retardant properties, and the fireproof performance is poor for continuous flame, and only one shielding layer is provided, which is not strong enough and is easily disturbed by external magnetic field.

[0003] The utility model discloses a fire -resistant composite shielding super six data cable, including outer sheath, armoring layer, shielding layer, fireproof layer, inner sheath, cross spiral skeleton, wire, tensile resistance line, the outer sheath is wrapped in the armoring layer, the armoring layer is made of galvanized steel wire, the armoring layer is equipped with the shielding layer, the shielding layer is equipped with the fireproof layer, the fireproof layer is mica tape, the fireproof layer is equipped with the inner sheath, the outer sheath and inner sheath are same and are polyvinyl chloride material, the inner sheath is equipped with cross spiral skeleton, the cross spiral skeleton is the PVC material with elastic deformation, the cross spiral skeleton outside is wound with multiple wires, the cross spiral skeleton center is equipped with tensile resistance line. The utility model strengthens the fire resistance of cable, has double -layer shielding effect, greatly reduces the interference effect of cable line by external magnetic field, avoids the wire and cross spiral skeleton to separate loose, also greatly strengthens the toughness in cable.

[0004] In the above disclosed structure, the multi-layer structure is combined inside the outer sleeve layer to enhance the fire resistance and stability of the wire core. The internal structure is complex, and the outer part lacks support rings and spiral reinforcing strips, which is not conducive to alignment processing and cannot isolate and support the cable. It cannot be elastically buffered, and the safety and stability are insufficient, which needs to be improved. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model aims to provide a fire-resistant composite power cable. The inner connecting reinforcing layer of the fire-resistant protective layer, combined with the support layer positioning wire core, can be composite positioning, which is beneficial to fire-resistant protection. The external connecting support ring and spiral reinforcing strip, combined with the internally embedded tensile spoke, can be externally positioned and strengthened, improve the structural strength, and can be elastically supported to improve the compression resistance effect, which is beneficial to production and use.

[0006] To solve the above problems, the utility model adopts the following technical scheme.

[0007] The utility model provides a kind of fire-resistant composite power cable, including fireproof protective layer, the inside fixedly wrapped of fireproof protective layer is reinforced layer, the inside fixedly wrapped of reinforced layer is support layer, the inside fixedly inlaid of support layer is wire core, the outer surface of fireproof protective layer is fixedly connected with support ring, the outer surface of fireproof protective layer is fixedly connected with helical reinforcing strip, the inside fixedly inlaid of helical reinforcing strip is tensile spoke, the side fixedly connected of tensile spoke is positioning head, the side of positioning head is equipped with arc slot, and arc slot is clamped in the outer surface of fireproof protective layer, the inner side of arc slot is fixedly connected with adhesive block, and adhesive block is fixedly adhered to the outer surface of fireproof protective layer.

[0008] Further, the support ring and the fireproof protective layer are integrated structures, and the support rings are distributed at equal intervals on the outer surface of the fireproof protective layer.

[0009] Further, the helical reinforcing strip is helically wound on the outer surface of the fireproof protective layer, and the helical reinforcing strip penetrates the two sides of the support ring, so as to integrally and complexly form the support ring and the helical reinforcing strip, improve the structural strength, suspend the support cable, facilitate elastic support, and be safe and stable.

[0010] Further, the tensile spoke is a flat metal strip and is integrally inlaid in the inside of the helical reinforcing strip, so as to facilitate winding positioning, facilitate injection molding positioning, and facilitate processing.

[0011] Further, the positioning heads are distributed at equal intervals on the inner surface of the tensile spoke and are wedge-shaped structures.

[0012] Further, the adhesive block is a PU colloid and is fixedly filled in the inside of the arc slot, so as to facilitate direct adhesion positioning, facilitate auxiliary positioning, and facilitate processing.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] (1) The utility model can be complexly positioned to facilitate fireproof protection by connecting the reinforced layer inside the fireproof protective layer, positioning the wire core with the support layer, can be externally positioned and strengthened to improve the structural strength by connecting the support ring and the helical reinforcing strip outside and the tensile spoke inlaid inside, can be elastically supported to improve the compression resistance, and is convenient for production and use.

[0015] (2) The support ring and the helical reinforcing strip can be integrally and complexly formed to improve the structural strength, can be suspended to support the cable, facilitate elastic support, and be safe and stable.

[0016] (3) By adopting the flat metal strip winding to form the tensile resistance spoke, it is beneficial to winding positioning, convenient for injection molding positioning, and beneficial to processing molding.

[0017] (4) By connecting the positioning head with the bonding block, it is beneficial to direct bonding positioning, beneficial to auxiliary positioning, and convenient for processing molding. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic view of the utility model.

[0019] Figure 2 It is the end position sectional view schematic view of the utility model.

[0020] Figure 3 It is the side sectional view of the tensile resistance spoke connection of the utility model.

[0021] Figure 4 It is the local structure view of the tensile resistance spoke and the positioning head connection of the utility model.

[0022] Mark number explanation in the drawing:

[0023] 1 fireproof protection layer, 11 reinforcing layer, 12 support layer, 13 core, 14 support ring, 15 spiral reinforcing strip, 16 tensile resistance spoke, 17 positioning head, 18 arc-shaped groove, 19 bonding block. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model provides a kind of fire-resistant composite power cable, including fireproof protective layer 1, the inside of fireproof protective layer 1 is fixedly wrapped with reinforcing layer 11, the inside of reinforcing layer 11 is fixedly wrapped with support layer 12, support layer 12 is fixedly embedded with wire core 13, wire core 13 can be wrapped by multilayer structure, to carry out fixed position, on the one hand, can be insulated protection, improve the stability of power use, on the other hand, fireproof protection can be carried out from surface, safe and stable, the outer surface of fireproof protective layer 1 is fixedly connected with support ring 14, the outer surface of fireproof protective layer 1 is fixedly connected with helical reinforcing strip 15, by support ring 14 auxiliary support power cable, fireproof protective layer 1 can be suspended isolation, to reduce wear and tear, improve protection effect, and helical reinforcing strip 15 can enhance structural stability, and also can auxiliary support, when high temperature is received outside, local deformation can be supported, high adaptability, helical reinforcing strip 15 is fixedly embedded with tensile spoke 16 in the inside, inside embedded tensile spoke 16, enhance tensile effect, guarantee the stability of wire core 13, and external connection structure is easily composite positioning, avoid interference, facilitate processing production, high adaptability, one side of tensile spoke 16 is fixedly connected with positioning head 17, one side of positioning head 17 is equipped with arc slot 18, arc slot 18 is connected in the outer surface of fireproof protective layer 1, the inboard of arc slot 18 is fixedly connected with adhesive block 19, adhesive block 19 is fixedly bonded to the outer surface of fireproof protective layer 1, spiral winding of tensile spoke 16 is formed on the surface of fireproof protective layer 1, then filling glue forms adhesive block 19, can be bonded positioning, benefit auxiliary setting, then in injection forming helical reinforcing strip 15, benefit external processing setting, efficient and stable, facilitate production and use.

[0026] Please refer to Figure 2 and Figure 3 , support ring 14 and fireproof protective layer 1 are integrated structure, support ring 14 is distributed at the outer surface of fireproof protective layer 1 at equal intervals, helical reinforcing strip 15 is spirally wound on the outer surface of fireproof protective layer 1, helical reinforcing strip 15 penetrates the both sides of support ring 14, by composite connection support ring and helical reinforcing strip, can be integrally formed, improve structural strength, can be suspended support cable, benefit elastic support, safe and stable.

[0027] Please refer to Figure 3 and Figure 4 , tensile spoke 16 is flat metal strip, and is embedded in the inside of helical reinforcing strip 15 integrally, by adopting flat metal strip winding to form tensile spoke, benefit winding positioning, facilitate injection positioning, benefit processing forming, positioning head 17 is distributed at the inboard surface of tensile spoke 16 at equal intervals, and is wedge-shaped structure, adhesive block 19 is PU glue, and is fixedly filled in the inside of arc slot 18, by positioning head connection adhesive block, benefit direct bonding positioning, benefit auxiliary positioning, facilitate processing forming.

[0028] The above merely describes a preferred embodiment of the present application; the protection scope of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and improvement concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A fire resistant composite power cable comprising a fire resistant sheath (1), the inside of which is fixedly wrapped with a reinforcing layer (11), characterised in that: The inside of the reinforcing layer (11) is fixedly wrapped with a supporting layer (12), the inside of the supporting layer (12) is fixedly inlaid with a wire core (13), the outer surface of the fireproof protective layer (1) is fixedly connected with a supporting ring (14), the outer surface of the fireproof protective layer (1) is fixedly connected with a spiral reinforcing strip (15), the inside of the spiral reinforcing strip (15) is fixedly inlaid with a tensile resistance spoke (16), one side of the tensile resistance spoke (16) is fixedly connected with a positioning head (17), one side of the positioning head (17) is provided with an arc-shaped groove (18), the arc-shaped groove (18) is clamped on the outer surface of the fireproof protective layer (1), the inside of the arc-shaped groove (18) is fixedly connected with an adhesive block (19), and the adhesive block (19) is fixedly adhered to the outer surface of the fireproof protective layer (1).

2. A fire resistant composite power cable according to claim 1, characterized in that: The supporting ring (14) and the fireproof protective layer (1) are an integral structure, and the supporting rings (14) are distributed at equal intervals on the outer surface of the fireproof protective layer (1).

3. A fire resistant composite power cable according to claim 1, characterized in that: The spiral reinforcing strip (15) is spirally wound on the outer surface of the fireproof protective layer (1), and the spiral reinforcing strip (15) penetrates through both sides of the supporting ring (14).

4. A fire resistant composite power cable according to claim 1, characterized in that: The tensile resistance spoke (16) is a flat metal strip and is integrally inlaid in the inside of the spiral reinforcing strip (15).

5. A fire resistant composite power cable according to claim 1, characterized in that: The positioning head (17) is distributed at equal intervals on the inside surface of the tensile resistance spoke (16) and has a wedge-shaped structure.

6. A fire resistant composite power cable according to claim 1, characterized in that: The adhesive block (19) is a PU colloid and is fixedly filled in the inside of the arc-shaped groove (18).

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