CN215730972U - Crosslinked polyethylene insulated control cable - Google Patents

Abstract

The utility model provides a crosslinked polyethylene insulated control cable, which comprises an insulated wire core, and a belting layer, a shielding layer, an inner liner, an armor layer and a sheath layer which are sequentially arranged outside the insulated wire core, wherein the insulated wire core consists of a conductor and an insulating layer; the cavity has been seted up at the middle part of restrictive coating, distributes in the cavity a plurality of components of preventing turning round and a plurality of stable subassembly, prevents turning round the subassembly and includes outer arc arm, inner arc arm and spring, and outer arc arm is located the outer arc inslot that the cavity lateral wall was seted up, and inner arc arm is located the inner arc inslot that the cavity inside wall was seted up, and the spring sets firmly between outer arc arm and inner arc arm, and stable subassembly includes trapezoidal arch and boss, and the middle part of boss is equipped with and is used for clamping trapezoidal bellied trapezoidal recess.

Description

Crosslinked polyethylene insulated control cable

Technical Field

The utility model relates to the technical field of electric wires and cables, in particular to a crosslinked polyethylene insulated control cable.

Background

Cables are generally rope-like cables made by stranding several wires or groups of wires, each group insulated from the other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, compensation cable, shielding cable, flame-retardant cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable, control cable and the like. They are composed of single-strand or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like, and are respectively applied to different occasions. The control cable is widely applied to the traffic industries such as industrial and mining industries, energy sources and the like, the traditional control cable has poor anti-distortion and anti-extrusion memory tensile capacity when in use, the problems of easy occurrence of distortion deformation, cracking of a sheath, breakage of an insulated wire core and the like are solved, and the service life is seriously shortened.

Therefore, the present invention provides a crosslinked polyethylene insulated control cable to solve the above existing problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a crosslinked polyethylene insulated control cable.

In order to solve the technical problems, the utility model provides the following technical scheme: a crosslinked polyethylene insulated control cable comprises an insulated wire core, and a belting layer, a shielding layer, an inner liner layer, an armor layer and a protective sleeve layer which are sequentially arranged outside the insulated wire core, wherein the insulated wire core is composed of a conductor and an insulating layer coated on the periphery of the conductor, an annular cavity is formed in the middle of the inner liner layer, a plurality of anti-torsion and anti-compression assemblies are uniformly distributed in the annular cavity, each anti-torsion and anti-compression assembly comprises an extension frame and a ball, a groove is embedded in one end face of the outer side wall of the annular cavity, and the ball is arranged in the groove in a rolling manner and is in rolling contact with the outer side wall of the annular cavity; the middle part of restrictive coating has seted up the cavity, a plurality of anti-torque assembly and a plurality of subassembly of stabilizing of distributing in the cavity, the anti-torque assembly includes outer arc arm, inner arc arm and spring, outer arc arm is located the outer arc inslot that the cavity lateral wall was seted up, inner arc arm is located the inner arc inslot that the cavity inside wall was seted up, the spring sets firmly between outer arc arm and inner arc arm, stabilize the subassembly and include trapezoidal arch and boss, the middle part of boss is equipped with and is used for clamping trapezoidal bellied trapezoidal recess.

As a preferable technical scheme of the utility model, a plurality of the torsion-proof components and a plurality of the stabilizing components are distributed in a staggered manner in the cavity.

As a preferred technical solution of the present invention, the depth of the outer arc groove is greater than the height of the outer arc arm, the depth of the inner arc groove is greater than the height of the inner arc arm, and both ends of the spring are respectively and fixedly mounted between the notches of the outer arc arm and the inner arc arm.

As a preferable technical scheme of the utility model, the insulating layer is made of a crosslinked polyethylene insulating material.

As a preferable technical scheme of the utility model, the armor layer is made of galvanized steel strips.

As a preferable technical scheme of the utility model, the sheath layer is made of flame-retardant polyvinyl chloride sheath material.

The utility model has the following beneficial effects: according to the cross-linked polyethylene insulated control cable provided by the utility model, the anti-torsion and anti-compression assembly, the anti-torsion assembly and the stabilizing assembly are arranged, so that when the cable is subjected to external pressure or winding force, external acting force can be absorbed, a buffering effect is achieved, the anti-extrusion, anti-torsion and anti-winding capabilities of the cable are increased, the service life of the cable is effectively prolonged, and the use requirements are met.

The utility model will be explained in more detail below with reference to the drawings and examples.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

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

FIG. 3 is a schematic structural diagram of a sheath layer according to the present invention;

FIG. 4 is an enlarged view of a in FIG. 2;

FIG. 5 is an enlarged view of b in FIG. 3 according to the present invention;

reference numbers in the figures: 1. a belting layer; 2. a shielding layer; 3. an inner liner layer; 4. an armor layer; 5. a sheath layer; 6. a conductor; 7. an insulating layer; 8. an annular cavity; 9. an extension frame; 10. a ball bearing; 11. a groove; 12. a cavity; 13. an outer arc arm; 14. an inner arc arm; 15. a spring; 16. an outer arc groove; 17. an inner arc groove; 18. a trapezoidal protrusion; 19. a boss; 20. a trapezoidal groove; 21. a spring; 22. an operation block; 23. inserting a column; 24. an operation slot; 25. and (4) inserting the jack.

Detailed Description

The terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like in the specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b): as shown in fig. 1-5, the cross-linked polyethylene insulated control cable provided by the present invention comprises an insulated wire core, and a belting layer 1, a shielding layer 2, an inner liner 3, an armor layer 4 and a sheath layer 5 which are sequentially arranged outside the insulated wire core, wherein the insulated wire core is composed of a conductor 6 and an insulating layer 7 covering the periphery of the conductor 6, an annular cavity 8 is formed in the middle of the inner liner 3, a plurality of anti-torsion and anti-compression components are uniformly distributed in the annular cavity 8, each anti-torsion and anti-compression component comprises an extension frame 9 and a ball 10, a groove 11 is embedded in one end surface of the extension frame 9 facing the outer side wall of the annular cavity 8, and the ball 10 is rolling-installed in the groove 11 and is in rolling contact with the outer side wall of the annular cavity 8, so as to enhance the anti-extrusion and anti-winding performance of the cable; the middle part of the sheath layer 5 is provided with a cavity 12, a plurality of anti-twisting components and a plurality of stabilizing components are distributed in the cavity 12, each anti-twisting component comprises an outer arc arm 13, an inner arc arm 14 and a spring 15, the outer arc arm 13 is positioned in an outer arc groove 16 formed in the outer side wall of the cavity 12, the inner arc arm 14 is positioned in an inner arc groove 17 formed in the inner side wall of the cavity 12, the spring 15 is fixedly arranged between the outer arc arm 13 and the inner arc arm 14, each stabilizing component comprises a trapezoidal protrusion 18 and a boss 19, the middle part of the boss 19 is provided with a trapezoidal groove 20 for clamping the trapezoidal protrusion 18, the anti-extrusion and anti-winding capacity of the cable is enhanced, when the cable is subjected to external pressure or winding force, external acting force can be absorbed, the buffering effect is achieved, the damage or breakage of the cable core due to winding during winding is effectively reduced, and the cable can be kept in normal use, the service life of the cable is ensured.

Further, a plurality of the torsion-proof components and a plurality of the stabilizing components are distributed in the cavity 12 in a staggered manner.

Furthermore, the depth of the outer arc groove 16 is greater than the height of the outer arc arm 13, the depth of the inner arc groove 17 is greater than the height of the inner arc arm 14, and two ends of the spring 15 are respectively and fixedly mounted in the middle of the notches of the outer arc arm 13 and the inner arc arm 14, so that the position of the anti-torsion component in the cavity 12 is more stable.

Further, the insulating layer 7 is made of cross-linked polyethylene insulation.

Further, the armor layer 4 is made of galvanized steel strips.

Further, the sheath layer 5 is made of flame-retardant polyvinyl chloride sheath material.

The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

The parts not involved in the present invention are the same as or can be implemented using the prior art.

Claims (6)

1. The cross-linked polyethylene insulated control cable is characterized by comprising an insulated wire core, a belting layer (1), a shielding layer (2), an inner liner layer (3), an armor layer (4) and a sheath layer (5) which are sequentially arranged outside the insulated wire core, wherein the insulated wire core is composed of a conductor (6) and an insulating layer (7) coated on the periphery of the conductor (6), an annular cavity (8) is formed in the middle of the inner liner layer (3), a plurality of anti-torsion and anti-compression assemblies are uniformly distributed in the annular cavity (8), each anti-torsion and anti-compression assembly comprises an extension frame (9) and a ball (10), a groove (11) is embedded in one end face of each extension frame (9) facing the outer side wall of the annular cavity (8), and the ball (10) is installed in the groove (11) in a rolling mode and is in rolling contact with the outer side wall of the annular cavity (8); cavity (12) have been seted up at the middle part of restrictive coating (5), it prevents turning round subassembly and a plurality of stable subassembly to distribute a plurality of in cavity (12), prevent turning round the subassembly and include outer arc arm (13), inner arc arm (14) and spring (15), outer arc arm (13) are located outer arc groove (16) that cavity (12) lateral wall was seted up, inner arc arm (14) are located inner arc groove (17) that cavity (12) inside wall was seted up, spring (15) set firmly between outer arc arm (13) and inner arc arm (14), stable subassembly includes trapezoidal arch (18) and boss (19), the middle part of boss (19) is equipped with trapezoidal recess (20) that are used for clamping trapezoidal arch (18).

2. A crosslinked polyethylene insulated control cable according to claim 1, characterized in that a number of said torsion-proof elements and a number of said stabilizing elements are staggered within the cavity (12).

3. The insulated control cable of claim 1, wherein the outer arc groove (16) has a depth greater than the height of the outer arc arm (13), the inner arc groove (17) has a depth greater than the height of the inner arc arm (14), and the two ends of the spring (15) are respectively and fixedly mounted between the notches of the outer arc arm (13) and the inner arc arm (14).

4. A crosslinked polyethylene insulated control cable according to claim 1, characterized in that the insulation layer (7) is made of crosslinked polyethylene insulation.

5. A crosslinked polyethylene insulated control cable according to claim 1, characterized in that the armouring layer (4) is made of galvanized steel tape.

6. The insulated control cable of claim 1, wherein the sheath layer (5) is made of flame retardant polyvinyl chloride sheath material.

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