CN210039673U - Novel central force-bearing flexible signal cable - Google Patents

Abstract

The utility model discloses a novel flexible signal cable of center load belongs to cable technical field. The cable comprises a central bearing core, a plurality of twisted-pair units, a first wrapping layer, a water-blocking layer and an outer sheath, wherein the central bearing core, the plurality of twisted-pair units, the first wrapping layer, the water-blocking layer and the outer sheath are sequentially sleeved from inside to outside; the pair twist unit comprises two pair twist wire cores and a second wrapping layer wrapping the wire cores, and each wire core comprises a conductor and an insulating layer wrapping the conductor. The cable uses a honeycomb central bearing core, has strong bearing performance and lightens the dead weight of the cable. The utility model discloses it is corrosion-resistant, flexible good, be applicable to comparatively abominable operational environment.

Description

Novel central force-bearing flexible signal cable

Technical Field

The utility model mainly relates to a novel flexible signal cable of center load belongs to cable technical field.

Background

Cables are an important component of power transmission. Because the cable is often erected in a severe environment, the cable should have good temperature resistance, impact resistance and easy distortion. The cable in the prior art is solid in the center and general in flexibility. Therefore, a new type of central force-bearing flexible signal cable is needed.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a novel central load flexible signal cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel central bearing flexible signal cable comprises a central bearing core, a plurality of twisted units, a first wrapping layer, a water blocking layer and an outer sheath, wherein the central bearing core, the twisted units, the first wrapping layer, the water blocking layer and the outer sheath are sequentially sleeved from inside to outside; the pair twist unit comprises two pair twist wire cores and a second wrapping layer wrapping the wire cores, and each wire core comprises a conductor and an insulating layer wrapping the conductor.

Furthermore, the edge of the central force bearing core is of a tubular structure, and the inside of the central force bearing core is of a central symmetry and axisymmetric honeycomb structure. The honeycomb structure is an optimal topological structure covering a two-dimensional plane, the structural strength of the honeycomb structure is very high, the central bearing range of the cable is improved, and the dead weight of the cable is reduced.

Furthermore, the number of the pair twisting units is 12, and the pair twisting units are uniformly distributed into a ring.

Further, the insulating layer is a polytetrafluoroethylene insulating layer. The adopted polytetrafluoroethylene insulating material has strong high temperature resistance.

Furthermore, a circle of water-blocking strip with a circular cross section is arranged in the water-blocking layer, and water-blocking paste is filled in the water-blocking strip. The water-blocking paste effectively organizes water to permeate into the cable core, and the service life of the cable is prolonged. The circular shape water blocking strip for leave the space between water blocking strip and first around covering and the oversheath, this space forms buffer space when the cable receives external impact, reduces the impact force that inside cable core received.

Furthermore, a circle of hairbrush is uniformly distributed outside the outer sheath. The hairbrush enhances the friction force between the outer wall of the cable and the use environment, so that the cable is not easy to move and is kept stable in use.

Further, the outer sheath is a polyurethane outer sheath. The acid and alkali corrosion resistance of the cable and the flexibility of the cable are improved.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is following: the cable uses a honeycomb central bearing core, has strong bearing performance and lightens the dead weight of the cable. The utility model discloses it is corrosion-resistant, flexible good, be applicable to comparatively abominable operational environment.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein, 1-central bearing core; 2-pair twisting unit; 3-a first wrapping layer; 4-a water-resistant layer; 5-an outer sheath; 21-a conductor; 22-an insulating layer; 23-second lapping layer.

Detailed Description

The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.

As shown in figure 1, the novel central force-bearing flexible signal cable has a central force-bearing core 1 positioned in the center of the cable, a hollow structure with a honeycomb-shaped cross section in the inner part of the cable, and a tubular structure at the edge of the cable. As can be seen from the attached figure 1, the honeycomb is positioned in the pipe, in the embodiment, the pipe and the honeycomb are both made of a butyronitrile polyvinyl chloride insulating material and are integrally formed through extrusion molding. The central force bearing core 1 is externally provided with 12 pairs of twisted units 2 twisted around the outer wall of the central force bearing core, the cross sections of the twisted units 2 are circular, and the inner part of the central force bearing core comprises two twisted conductors 21 wrapped with insulating layers 22. The insulating layer 22 is wrapped by a second wrapping layer 23. 12 to twisting unit overcoat establish first around covering 3, first around covering 3 and second around covering 23 all select for use glass fiber cloth. The waterproof layer 4 is sleeved outside the first wrapping layer 3, a circle of waterproof strip with a circular cross section is arranged in the waterproof layer, and waterproof paste is filled in the waterproof strip. The polyurethane outer sheath 5 is sleeved outside the water-blocking layer, and a circle of anti-skid hairbrush is arranged on the outer wall of the polyurethane outer sheath. The cable has good force bearing performance at the center, good waterproof performance and light dead weight, and can not slide due to wet and slippery in the use process to influence the use effect.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. The utility model provides a novel flexible signal cable of center load which characterized in that: the cable comprises a central bearing core (1), a plurality of pair-twisted units (2), a first wrapping layer (3), a water-blocking layer (4) and an outer sheath (5), wherein the central bearing core (1) is sequentially sleeved from inside to outside, the central bearing core (1) is positioned in the center of the cable, and the plurality of pair-twisted units (2) are twisted along the outer wall of the central bearing core (1) and surround the outer wall of the central bearing core; the pair-twisting unit (2) comprises two pair-twisted wire cores and a second wrapping layer (23) wrapping the wire cores, and each wire core comprises a conductor (21) and an insulating layer (22) wrapping the conductor.

2. The novel central force bearing flexible signal cable of claim 1, characterized in that: the edge of the central bearing core (1) is of a tubular structure, and the inside of the central bearing core is of a centrosymmetric and axisymmetric honeycomb structure.

3. The novel central force bearing flexible signal cable of claim 1, characterized in that: the number of the pair twisting units (2) is 12, and the pair twisting units (2) are uniformly distributed into a ring.

4. The novel central force bearing flexible signal cable of claim 1, characterized in that: the insulating layer (22) is a polytetrafluoroethylene insulating layer.

5. The novel central force bearing flexible signal cable of claim 1, characterized in that: and a circle of water-blocking strip with a circular cross section is arranged in the water-blocking layer (4), and water-blocking paste is filled in the water-blocking strip.

6. The novel central force bearing flexible signal cable of claim 1, characterized in that: a circle of hairbrush is uniformly distributed outside the outer sheath (5).

7. The novel central force bearing flexible signal cable of claim 1, characterized in that: the outer sheath (5) is a polyurethane outer sheath.

Images