CN213042694U

CN213042694U - High-reliability flexible anti-torsion low-voltage cable

Info

Publication number: CN213042694U
Application number: CN202021855330.6U
Authority: CN
Inventors: 谷阔
Original assignee: Xintai Cable Co ltd
Current assignee: Xintai Cable Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-04-23
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to the technical field of cables, especially, relate to an antitorque low tension cable of high reliable flexibility. The anti-twisting cable comprises a first support body, a second support body and a third support body which are spirally arranged in an anti-twisting protective layer, wherein cavities in the first support body and the second support body are extruded when a cable is twisted along the spiral direction, so that the problem of excessive damage caused by extrusion of an inner cable core is avoided; the adoption is held between the fingers the radial supporting shoe that sets up at first supporter, has realized when normally placing the state, to the supporting effect of inside cable core, has solved because only set up the cavity, has realized the promotion to cable antitorque performance, but can't provide the easy problem of warping of enough support to the cable core when normally placing.

Description

High-reliability flexible anti-torsion low-voltage cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to an antitorque low tension cable of high reliable flexibility.

Background

The cable is used for transmitting and distributing electric energy, and the power cable is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and transmission lines under river-crossing seawater.

Traditional cable is when using, because the antitorque performance is relatively poor, is coiled and is put the cable in-process, because of taking place the deformation along the circumferential direction distortion easily, causes the cable to damage, adds the buffering cavity in the cable, can keep away the antitorque performance that improves the cable to a certain extent but also because the setting of cavity makes the cable lack enough support performance to inside easily, takes place deformation.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to the technical insufficiency, a high-reliability flexible anti-torsion low-voltage cable is provided, the first support body, the second support body and the third support body which are spirally arranged in the anti-torsion protective layer are matched, when the cable is twisted along the spiral direction, the cavities in the first support body and the second support body are extruded, thereby avoiding the problem that the inner cable core is excessively extruded and damaged, when the cable is twisted along the reverse spiral direction, the third support body is outwards propped, the safety of the cable core is ensured, and the problem that the cable is easily damaged due to the poor anti-torsion performance of the cable is avoided; the adoption is held between the fingers the radial supporting shoe that sets up at first supporter, has realized when normally placing the state, to the supporting effect of inside cable core, has solved because only set up the cavity, has realized the promotion to cable antitorque performance, but can't provide the easy problem of warping of enough support to the cable core when normally placing.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: comprises a cable core; a plurality of cable cores are coated in the inner sheath; an anti-torsion protective layer is arranged on the outer side of the inner sheath; an outer sheath is arranged on the outer side of the anti-torsion protective layer; the inner layer of the anti-torsion protective layer is provided with a first support body and a second support body; the first support body and the second support body are circumferentially arranged at intervals; a third support body is arranged on the outer layer of the anti-torsion protective layer; the third support bodies are arranged corresponding to the first support bodies or the second support bodies one to one; cavities are formed in the inner sides of the first supporting body and the second supporting conductor; a radial supporting block is arranged in the cavity of the first supporting body along the length direction of the first supporting body; a reinforcing rope is arranged on one side of the third support body, which is close to the cable core, along the length direction of the third support body; the reinforcing rope is clamped in the third supporting body; and a matching groove is formed in the position, close to the reinforcing rope, of the first support body or the second support body.

Further optimize this technical scheme, first supporter is provided with 4 in antitorque protective layer inlayer circumference.

Further optimize this technical scheme, first supporter, second supporter, third supporter, along cable length direction circumference spiral setting.

Further optimize this technical scheme, radial supporting shoe is provided with 4.

Compared with the prior art, the utility model has the advantages of it is following: 1. the first support body, the second support body and the third support body are spirally arranged in the anti-torsion protective layer and are matched, the structure is favorable for ensuring that cavities in the first support body and the second support body are extruded when the cable is twisted along the spiral direction, so that the problem that the inner cable core is excessively damaged by extrusion is solved, and the third support body is outwards propped open when the cable is twisted along the reverse spiral direction, so that the safety of the cable core is ensured; 2. the radial supporting block arranged between the first supporting body and the second supporting body is used for favorably ensuring the supporting effect on the inner cable core in a normal placing state.

Drawings

Fig. 1 is a schematic overall cross-sectional structure of a highly reliable flexible anti-torsion low-voltage cable.

Fig. 2 is a schematic structural view of the inner cross section of an outer sheath of a highly reliable flexible anti-torsion low-voltage cable.

Fig. 3 is a schematic structural view of a first support, a second support and a third support of a high-reliability flexible anti-torsion low-voltage cable.

Fig. 4 is a schematic structural view of a first support and a second support of a high-reliability flexible anti-torsion low-voltage cable.

In the figure: 1. a cable core; 2. an inner sheath; 3. an anti-torsion protective layer; 4. an outer sheath; 5. a first support; 6. a second support; 7. a third support; 8. a cavity; 9. a radial support block; 10. reinforcing the rope; 11. and a matching groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The specific implementation mode is as follows: as shown in fig. 1-4, comprises a cable core 1; a plurality of cable cores 1 are coated in the inner sheath 2; an anti-torsion protective layer 3 is arranged on the outer side of the inner sheath 2; an outer sheath 4 is arranged on the outer side of the anti-torsion protective layer 3; the inner layer of the anti-torsion protective layer 3 is provided with a first support body 5 and a second support body 6; the first support body 5 and the second support body 6 are circumferentially arranged at intervals; a third supporting body 7 is arranged on the outer layer of the anti-torsion protective layer 3; the third supporting bodies 7 are arranged corresponding to the first supporting bodies 5 or the second supporting bodies 6 one by one; cavities 8 are arranged on the inner sides of the first supporting body 5 and the second supporting conductor; a radial supporting block 9 is arranged in the cavity 8 of the first supporting body 5 along the length direction of the first supporting body 5; a reinforcing rope 10 is arranged on one side of the third support body 7 close to the cable core 1 along the length direction of the third support body 7; the reinforcing rope 10 is clamped in the third supporting body 7; a matching groove 11 is formed in the position, close to the reinforcing rope 10, of the first support body 5 or the second support body 6; 4 first supporting bodies 5 are arranged on the inner layer of the anti-torsion protective layer 3 in the circumferential direction; 4 first supporting bodies 5 are arranged on the inner layer of the anti-torsion protective layer 3 in the circumferential direction; the first support body 5, the second support body 6 and the third support body 7 are spirally arranged along the length direction of the cable in the circumferential direction; the number of the radial supporting blocks 9 is 4.

When the cable is used, as shown in fig. 1 to 4, when the cable is twisted in the same direction as the spiral directions of the first support body 5, the second support body 6 and the third support body 7, because the cavities 8 are arranged in the first support body 5 and the second support body 6, when the first support body 5, the second support body 6 and the third support body 7 are twisted and tightened, the cavities 8 provide buffer protection for the cable core 1 inside, thereby ensuring that the cable core 1 cannot be damaged by inward extrusion of the first support body 5, the second support body 6 and the third support body 7; when the cable takes place and first supporter 5, the second supporter 6, when the opposite distortion of spiral direction of third supporter 7, first supporter 5, the second supporter 6, the outward distortion of third supporter 7 is propped open, thereby guaranteed that cable core 1 can not extrude and damage, and owing to be provided with reinforcing rope 10 on third supporter 7, the intensity and the toughness of third supporter 7 have been improved, when the cable is in the normal prevention state, owing to be provided with radial supporting shoe 9 in first supporter 5's cavity 8, realize the support and the fixed to cable core 1 through a plurality of radial supporting shoes 9 in the cable core 1 outside, thereby guaranteed when normally placing the state, cavity 8 can not flattened the deformation.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a antitorque low-voltage cable of high reliable flexibility which characterized in that: comprises a cable core (1); the plurality of cable cores (1) are coated in the inner sheath (2); an anti-torsion protective layer (3) is arranged on the outer side of the inner sheath (2); an outer sheath (4) is arranged on the outer side of the anti-torsion protective layer (3); the inner layer of the anti-torsion protective layer (3) is provided with a first support body (5) and a second support body (6); the first support body (5) and the second support body (6) are arranged at intervals in the circumferential direction; a third support body (7) is arranged on the outer layer of the anti-torsion protective layer (3); the third supporting bodies (7) are arranged corresponding to the first supporting bodies (5) or the second supporting bodies (6) one by one; cavities (8) are arranged on the inner sides of the first supporting body (5) and the second supporting conductor; a radial supporting block (9) is arranged in the cavity (8) of the first supporting body (5) along the length direction of the first supporting body (5); a reinforcing rope (10) is arranged on one side, close to the cable core (1), of the third support body (7) along the length direction of the third support body (7); the reinforcing rope (10) is clamped in the third support body (7); and a matching groove (11) is formed in the position, close to the reinforcing rope (10), of the first support body (5) or the second support body (6).

2. A highly reliable flexible anti-kink low voltage cable according to claim 1, characterized in that: the number of the first supporting bodies (5) is 4 in the circumferential direction of the inner layer of the anti-torsion protective layer (3).

3. A highly reliable flexible anti-kink low voltage cable according to claim 1, characterized in that: the number of the first supporting bodies (5) is 4 in the circumferential direction of the inner layer of the anti-torsion protective layer (3).

4. A highly reliable flexible anti-kink low voltage cable according to claim 1, characterized in that: the first supporting body (5), the second supporting body (6) and the third supporting body (7) are spirally arranged along the circumferential direction of the length direction of the cable.

5. A highly reliable flexible anti-kink low voltage cable according to claim 1, characterized in that: the number of the radial supporting blocks (9) is 4.