CN209804312U

CN209804312U - Flexible control cable with central bearing force

Info

Publication number: CN209804312U
Application number: CN201920582577.6U
Authority: CN
Inventors: 朱金鑫; 杜娟; 朱有明; 路永鸣; 吴子剑; 汪永军; 陈宇飞; 胡建中; 钱永红; 路宝俊; 张兆斌; 杜刚
Original assignee: YANGZHOU JIN XIN CABLE CO Ltd
Current assignee: YANGZHOU JIN XIN CABLE CO Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2019-12-17
Anticipated expiration: 2029-04-25

Abstract

The utility model discloses a novel flexible control cable of center load belongs to cable technical field. The cable comprises a central bearing core, a conductor, an insulating layer, a wrapping layer, a shielding layer, a water-blocking layer and an outer sheath, wherein the central bearing core is positioned in the central position of the cable and is tubular, and the inside of the cable is of a honeycomb structure; the insulating layer is coated on the periphery of the conductor to form a wire core unit, and the plurality of wire core units are twisted along the outer wall of the central bearing core; wrapping the wrapping layer with the wire core unit; the wrapping layer, the shielding layer, the water-blocking layer and the outer sheath are sequentially overlapped from inside to outside. The utility model discloses a central load core is chooseed for use to the cable as the middle part, because honeycomb's characteristic has improved the steadiness at cable center and has alleviateed the dead weight, and has good heat dissipation function, has improved the temperature resistance of cable.

Description

Flexible control cable with central bearing force

Technical Field

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

Background

Cable is a generic term for optical cables, electrical cables, and the like. The cable has many purposes, is mainly used for controlling installation, connecting equipment, transmitting power and other multiple functions, and is a common and indispensable object in daily life. The quality of the cable is not negligible due to its transmission medium. The cable has various service environments, superior indoor environment and severe outdoor environment. Some cables used for monitoring loops, automatic control systems and instrumentation have high requirements on wear resistance, temperature resistance, flexibility and impact resistance. Therefore, a central force bearing flexible control cable is needed.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a central bearing flexible control cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a flexible control cable of center load, its characterized in that: the cable comprises a central bearing core, a conductor, an insulating layer, a wrapping layer, a shielding layer, a water-blocking layer and an outer sheath, wherein the central bearing core is positioned in the central position of the cable and is tubular, and the inside of the cable is of a honeycomb structure; the insulating layer is coated on the periphery of the conductor to form a wire core unit, and the plurality of wire core units are twisted along the outer wall of the central bearing core; wrapping the wrapping layer with the wire core unit; the wrapping layer, the shielding layer, the water-blocking layer and the outer sheath are sequentially overlapped from inside to outside.

Furthermore, a plurality of heat dissipation holes are distributed on the insulating layer; the outer wall of the central bearing core and the wall of the honeycomb structure are both provided with a plurality of air holes. The heat generated by the conductor due to the electric conduction is dissipated through the heat dissipation holes of the insulating layer, and part of the heat enters the heat dissipation holes from the air holes in the outer wall of the central bearing core and flows in the honeycomb structure to dissipate the heat.

Furthermore, the wrapping layer is a polyester wrapping tape, and the covering rate is not less than 25%.

Furthermore, the shielding layer is a tinned copper wire shielding layer.

Furthermore, a circle of support frame is arranged in the waterproof layer, and the support frame is in a closed wavy shape; and the gap formed by the support frame, the outer sheath and the shielding layer is filled with water-blocking powder. The support frame is made of thermoplastic elastomer, when the cable is impacted by external force, the wave-shaped structure of the support frame can resist the external force, and the impact force on the center of the cable is reduced. The water-blocking powder forms a water-blocking sealing ring, so that water is effectively prevented from invading the center of the cable core.

Further, the outer sheath is made of halogen-free flame-retardant TPE material; the insulating layer is an extruded insulating layer of thermoplastic polyester elastomer TPEE.

Furthermore, the outer wall of the outer sheath is provided with a plurality of protective thorns. The protective stabs are divided into four groups arranged along the axial direction. Two pairs of the two pairs. The protection thorn effectively prevents plague from biting and protects the integrity of the cable. When a worker works, the worker is provided with protective gloves, and the length of the thorn is 5 mm, so that the worker is harmless to human beings.

Furthermore, a sealing cavity is arranged in the outer sheath, and a heavy object is filled in the sealing cavity. The heavy object is selected from dust. The outer wall corresponding to the sealed cavity is provided with anti-skid particles. The heavy object makes the cable when the level is placed, and the seal chamber contacts with ground, and its antiskid granule prevents that the cable from sliding, influences the transmission effect.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is following: the utility model discloses a central load core is chooseed for use to the cable as the middle part, because honeycomb's characteristic has improved the steadiness at cable center and has alleviateed the dead weight, and has good heat dissipation function, has improved the temperature resistance of cable.

drawings

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

Fig. 2 is a perspective view of the present invention;

The cable comprises a central force bearing core 1, a conductor 2, an insulating layer 3, a wrapping layer 4, a shielding layer 5, a water blocking layer 6, an outer sheath 7, a support frame 61, a sealing cavity 71 and a protection thorn 72.

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 fig. 1, the central force-bearing flexible control cable comprises a central force-bearing core 1, a conductor 2, an insulating layer 3, a wrapping layer 4, a shielding layer 5, a water-blocking layer 6 and an outer sheath 7, wherein the central force-bearing core 1 is positioned at the central position of the cable and is tubular, and the inside of the cable is of a honeycomb structure; the insulating layer 3 is coated on the periphery of the conductor 2 to form wire core units, and a plurality of wire core units are twisted along the outer wall of the central bearing core 1; the wrapping layer 4 wraps the wire core unit; the wrapping layer 4, the shielding layer 5, the water-blocking layer 6 and the outer sheath 7 are sequentially overlapped from inside to outside. The central bearing core 1 is made of low-density polyethylene LDPE, and has the advantages of insulating performance and light dead weight. The honeycomb structure is an excellent geometrical mechanical structure, and is small in material and high in strength.

A plurality of heat dissipation holes are distributed on the insulating layer 3; the outer wall of the central bearing core 1 and the wall of the honeycomb structure are both provided with a plurality of air holes. The heat generated by the conductor due to the electric conduction is dissipated through the heat dissipation holes of the insulating layer, and part of the heat enters the heat dissipation holes from the air holes in the outer wall of the central bearing core and flows in the honeycomb structure to dissipate the heat.

The wrapping layer 4 is a polyester wrapping tape, and the covering rate is not less than 25%. And the shielding layer 5 is a tinned copper wire shielding layer. A circle of support frame 61 is arranged in the waterproof layer 6, and the support frame 61 is in a closed wavy shape; and a gap formed by the support frame 61, the outer sheath 7 and the shielding layer 5 is filled with water-blocking powder. The support frame 61 is made of thermoplastic elastomer, and when the cable is impacted by external force, the wave-shaped structure of the support frame can resist the external force, so that the impact force on the center of the cable is reduced. The water-blocking powder forms a water-blocking sealing ring, so that water is effectively prevented from invading the center of the cable core. The outer sheath 7 is made of halogen-free flame-retardant TPE material; the insulating layer is an extruded insulating layer of thermoplastic polyester elastomer TPEE.

The outer wall of the outer sheath 7 is provided with a plurality of protection thorns 72. The protection barbs 72 are divided into four groups arranged along the axial direction. Two pairs of the two pairs. A sealed cavity 71 is arranged in the protective sleeve 7, and heavy objects are filled in the sealed cavity. The heavy object is selected from dust. The outer wall of the sealed cavity 71 is provided with anti-skid particles. When the cable is horizontally placed by the heavy object, the sealing cavity 71 is in contact with the ground, and the anti-skid particles prevent the cable from sliding and affecting the transmission 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

1. The utility model provides a flexible control cable of center load, its characterized in that: the cable comprises a central bearing core (1), a conductor (2), an insulating layer (3), a wrapping layer (4), a shielding layer (5), a waterproof layer (6) and an outer sheath (7), wherein the central bearing core (1) is positioned at the central position of the cable and is tubular, and the inside of the cable is of a honeycomb structure; the insulating layer (3) is coated on the periphery of the conductor (2) to form wire core units, and the plurality of wire core units are twisted along the outer wall of the central bearing core (1); the wrapping layer (4) wraps the wire core unit; the wrapping layer (4), the shielding layer (5), the water-resistant layer (6) and the outer sheath (7) are sequentially overlapped from inside to outside.

2. The center force-bearing flexible control cable of claim 1, wherein: a plurality of heat dissipation holes are distributed on the insulating layer (3); the outer wall of the central bearing core (1) and the wall of the honeycomb structure are both provided with a plurality of air holes.

3. The center force-bearing flexible control cable of claim 1, wherein: the wrapping layer (4) is a polyester wrapping tape, and the covering rate is not less than 25%.

4. The center force-bearing flexible control cable of claim 1, wherein: the shielding layer (5) is a tinned copper wire shielding layer.

5. The center force-bearing flexible control cable of claim 1, wherein: a circle of support frame (61) is arranged in the waterproof layer (6), and the support frame (61) is in a closed wave shape; and the gap formed by the support frame (61), the outer sheath (7) and the shielding layer (5) is filled with water-blocking powder.

6. the center force-bearing flexible control cable of claim 1, wherein: the outer sheath (7) is made of halogen-free flame-retardant TPE material; the insulating layer is an extruded insulating layer of thermoplastic polyester elastomer TPEE.

7. The center force-bearing flexible control cable of claim 1, wherein: the outer wall of the outer sheath (7) is provided with a plurality of protective thorns (72).

8. The center force-bearing flexible control cable of claim 1, wherein: a sealing cavity (71) is arranged in the outer sheath (7), and a heavy object is filled in the sealing cavity; the outer wall corresponding to the sealed cavity (71) is provided with anti-skid particles.