CN216311432U

CN216311432U - Polyvinyl chloride insulation and sheath concentric conductor power cable

Info

Publication number: CN216311432U
Application number: CN202121935180.4U
Authority: CN
Inventors: 李银祥
Original assignee: Guoyou Cable Group Co Ltd
Current assignee: Guoyou Cable Group Co Ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-04-15
Anticipated expiration: 2031-08-18

Abstract

The utility model provides a polyvinyl chloride insulation and sheath concentric conductor power cable which comprises a conductor support frame, insulation wire cores, an inner liner, a concentric conductor layer, a binding belt layer and an outer sheath, wherein the conductor support frame is formed by combining a central fixing frame and a plurality of buffer connecting assemblies; according to the utility model, through the arranged conductor support frame, the stability of the insulated wire core is enhanced, the protection effect of the insulated wire core is improved, the use safety of the cable is enhanced, and the service life of the cable is prolonged.

Description

Polyvinyl chloride insulation and sheath concentric conductor power cable

Technical Field

The utility model relates to the technical field of electric wires and cables, in particular to a polyvinyl chloride insulating and sheath concentric conductor power cable.

Background

The cable is made of one or more mutually insulated conductors and an outer insulating protective layer, and is a conducting wire for transmitting power or information from one place to another place, and the cable comprises a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like. The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater. In the power lines, the cable is increasing in specific gravity. The existing power cable has low deformation resistance and extrusion resistance, and the service life of the power cable is seriously influenced.

Therefore, the utility model provides a polyvinyl chloride insulation and sheath concentric conductor power cable to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a polyvinyl chloride insulated and sheathed concentric conductor power cable.

In order to solve the technical problems, the utility model provides the following technical scheme: a polyvinyl chloride insulation and sheath concentric conductor power cable comprises a conductor support frame, insulation wire cores, an inner liner, concentric conductor layers, a binding layer and an outer sheath, wherein the conductor support frame is formed by combining a central fixing frame and a plurality of buffering connecting assemblies, a plurality of connecting bulges distributed at equal intervals are fixedly arranged on the outer side wall of the central fixing frame, the buffering connecting assemblies are connected with the central fixing frame into a whole through the connecting bulges and form a plurality of wire core placing cavities for placing the insulation wire cores, the inner liner is coated outside the insulation wire cores, the concentric conductor layers are arranged on the surface of the inner liner, the binding layer is arranged on the periphery of the concentric conductor layers, and the outer sheath is arranged outside the binding layer;

when the cable is used, the external acting force applied to the power cable is transmitted to the conductor support frame through the outer sheath, the Y-shaped buffer support frame and the plurality of reset springs on the conductor support frame are elastically deformed through pressure, the acting force is offset, the protection effect of the cable is improved, the use safety of the cable is enhanced, and compared with the existing use condition of the cable, the service life of the cable is prolonged.

As a preferred technical scheme of the utility model, the buffering connecting assembly is a V-shaped structure formed by combining two Y-shaped buffering supporting frames and a plurality of return springs, the inner side end of the buffering connecting assembly of the V-shaped structure is provided with a connecting groove for clamping the connecting protrusion, and the plurality of return springs are fixedly arranged in a buffering cavity formed between the two Y-shaped buffering supporting frames.

As a preferable technical scheme, the inner end and the outer end of the Y-shaped buffer support frame are provided with buffer arc-shaped walls, and the buffer arc-shaped walls are tangent to the lining layer.

As a preferable technical scheme of the utility model, a filling layer is arranged in a gap among the conductor support frame, the insulating wire core and the lining layer.

As a preferable technical solution of the present invention, the insulated wire core includes a conductor and an insulating layer covering an outer periphery of the conductor.

The utility model has the following beneficial effects: according to the polyvinyl chloride insulation and sheath concentric conductor power cable provided by the utility model, the insulation wire core is fixed through the conductor support frame arranged at the center of the cable core, so that the stability of the insulation wire core is enhanced, the protection effect of the insulation wire core is improved, the use safety of the cable is enhanced, and compared with the existing use condition of the cable, the service life of the cable is prolonged.

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 a structure of a conductor support according to the present invention;

reference numbers in the figures: 1. an inner liner layer; 2. a concentric conductor layer; 3. binding a belt layer; 4. an outer sheath; 5. a central fixing frame; 6. a connecting projection; 7. a wire core placing cavity; 8. a Y-shaped buffer support frame; 9. a return spring; 10. a connecting groove; 11. a buffer chamber; 12. a buffer arc wall; 13. a filling layer; 14. a conductor; 15. an insulating layer.

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. 1-2, the concentric type conductor power cable with polyvinyl chloride insulation and sheath provided by the utility model comprises a conductor support frame, insulation wire cores, an inner liner 1, a concentric type conductor layer 2, a ribbon layer 3 and an outer sheath 4, wherein the conductor support frame is formed by combining a central fixing frame 5 and a plurality of buffer connecting assemblies, a plurality of connecting bulges 6 distributed at equal intervals are fixedly arranged on the outer side wall of the central fixing frame 5, the plurality of buffer connecting assemblies are connected with the central fixing frame 5 into a whole through the connecting bulges 6 to form a plurality of wire core placing cavities 7 for placing the insulation wire cores, the inner liner 1 is coated outside the insulation wire cores, the concentric type conductor layer 2 is arranged on the surface of the inner liner 1, the ribbon layer 3 is arranged on the periphery of the concentric type conductor layer 2, and the outer sheath 4 is arranged outside the ribbon layer 3;

when the cable is used, the external acting force applied to the power cable is transmitted to the conductor support frame through the outer sheath 4, the Y-shaped buffer support frame 8 and the plurality of reset springs 9 on the conductor support frame are elastically deformed through pressure, the acting force is offset, the protection effect of the cable is improved, the use safety of the cable is enhanced, and compared with the existing use condition of the cable, the service life of the cable is prolonged.

Further, buffering coupling assembling is "V" font structure that forms by two "Y" shape buffering support frames 8 and a plurality of reset spring 9 combination, and the connection groove 10 of joint connection arch 6 is seted up to the medial extremity of this "V" font structure's buffering coupling assembling, and is a plurality of reset spring 9 sets firmly in the cushion chamber 11 that forms between two "Y" shape buffering support frames 8.

Furthermore, the inner end and the outer end of the Y-shaped buffer support frame 8 are provided with buffer arc-shaped walls 12, and the buffer arc-shaped walls 12 are tangent to the lining layer 1.

Furthermore, a filling layer 13 is arranged in a gap between the conductor support frame, the insulating wire core and the lining layer 1.

Further, the insulated wire core comprises a conductor 14 and an insulating layer 15 coated on the periphery of the conductor 14.

The working principle is as follows:

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

1. A polyvinyl chloride insulation and sheath concentric conductor power cable is characterized by comprising a conductor support frame, an insulation wire core, an inner liner (1), a concentric conductor layer (2), a ribbon layer (3) and an outer sheath (4), the conductor support frame is formed by combining a central fixing frame (5) and a plurality of buffering connecting components, the outer side wall of the central fixing frame (5) is fixedly provided with a plurality of connecting bulges (6) which are distributed at equal intervals, a plurality of buffer connecting components are connected with the central fixing frame (5) into a whole through the connecting bulges (6), and a plurality of wire core placing cavities (7) for placing the insulated wire cores are formed, the insulated wire cores are coated with the lining layer (1), the surface of inner liner (1) is equipped with concentric type wire layer (2), the periphery on concentric type wire layer (2) sets up band layer (3), be provided with oversheath (4) outside band layer (3).

2. The concentric type conductor power cable with the polyvinyl chloride insulation and the sheath as claimed in claim 1, wherein the buffering connecting assembly is a V-shaped structure formed by combining two Y-shaped buffering support frames (8) and a plurality of return springs (9), a connecting groove (10) for clamping and connecting the protrusions (6) is formed in the end portion of the inner side of the buffering connecting assembly of the V-shaped structure, and the plurality of return springs (9) are fixedly arranged in a buffering cavity (11) formed between the two Y-shaped buffering support frames (8).

3. The polyvinyl chloride insulation and sheath concentric conductor power cable as claimed in claim 2, wherein the inner end and the outer end of the Y-shaped buffer support frame (8) are provided with buffer arc-shaped walls (12), and the buffer arc-shaped walls (12) are tangent to the lining layer (1).

4. The polyvinyl chloride insulation and sheath concentric conductor power cable according to claim 1, characterized in that a filling layer (13) is arranged in the gap between the conductor support frame, the insulation core and the inner liner layer (1).

5. A pvc insulated and jacketed concentric conductor power cable according to claim 1, characterized in that the insulated wire core comprises a conductor (14) and an insulating layer (15) covering the outer circumference of the conductor (14).