CN219393000U

CN219393000U - Power cable

Info

Publication number: CN219393000U
Application number: CN202320691892.9U
Authority: CN
Inventors: 熊伟纬; 熊开银
Original assignee: Yangzhou Fulong Cable Co ltd
Current assignee: Yangzhou Fulong Cable Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-07-21
Anticipated expiration: 2033-03-31

Abstract

The utility model relates to the technical field of power transmission, in particular to a power cable. The power cable comprises a PVC sheath and a mouth protection assembly sleeved on a port of the PVC sheath, the mouth protection assembly comprises a copper ring, a plurality of curved rods distributed in a ring shape are fixedly embedded on the copper ring, the curved rods are provided with outer convex sections, the ports of the outer convex sections on the curved rods are embedded on a folding ring, the folding ring is buckled on the port of the PVC sheath, and the copper ring and the curved rods are embedded in an annular groove formed in the PVC sheath. According to the power cable provided by the utility model, the circle of curved rod is arranged on the end of the PVC sheath, and as the curved rod is provided with the section of the convex section which is convex outwards, the convex section forming the annular net structure plays a role in buffering the end of the PVC sheath when the end of the PVC sheath is stepped or extruded, and meanwhile, the convex section is matched with the curved rod to effectively improve the strength of the end of the PVC sheath, so that the end of the PVC sheath is not easy to deform under stress or crack.

Description

Power cable

Technical Field

The utility model relates to the technical field of power transmission, in particular to a power cable.

Background

The power cable is a cable for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river. In the electric power line, the proportion of the cable is gradually increasing. Power cables are cable products used in the main line of power systems to transmit and distribute high power electrical energy.

In cities, the power cable is mainly laid underground, so that the end head of the cable is easy to tread or be extruded by other materials during laying, the PVC sheath on the end head of the cable is easy to deform, and even the end head of the PVC sheath is cracked when the cable is severely pressed

Accordingly, there is a need to provide a new power cable that solves the above-mentioned technical problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a power cable.

The power cable provided by the utility model comprises:

PVC sheath, and

the PVC sheath port is sleeved with the port protection component, the port protection component comprises a copper ring, a plurality of curved rods distributed in an annular mode are fixedly embedded on the copper ring, the curved rods are provided with outer protruding sections, the ports of the outer protruding sections on the curved rods are embedded on the folding ring, the folding ring is buckled on the ports of the PVC sheath, and the copper ring and the curved rods are embedded in annular grooves formed in the PVC sheath.

Preferably, the end face of the copper ring is fixedly embedded with a plurality of annular embedded strips, and the embedded strips are embedded into the cutting grooves formed in the PVC sheath.

Preferably, each of the engaging strips is engaged with a plurality of arc plates distributed at equal intervals, and the arc plates on all the engaging strips on the same plane form a ring-shaped structure.

Preferably, the cross section of the folding ring is of an L-shaped structure, the inward extending end of the folding ring is buckled on the end face of the PVC sheath, and the annular face of the folding ring is embedded on an annular groove formed in the PVC sheath.

Preferably, a cable core is arranged in the PVC sheath, and an insulating polyvinyl chloride layer is sleeved on the cable core.

Preferably, a plurality of annularly distributed rubber strips are embedded on the insulating polyvinyl chloride layer, a crosslinked polyethylene insulating layer is sleeved on the outer side of the rubber strips, and the crosslinked polyethylene insulating layer is embedded in the PVC sheath.

Compared with the related art, the power cable provided by the utility model has the following beneficial effects:

according to the utility model, the circle of curved rod is arranged on the end of the PVC sheath, and as the curved rod is provided with the section of the convex section which is convex outwards, the convex section forming the annular net structure plays a role in buffering the end of the PVC sheath when the end of the PVC sheath is stepped or extruded, and meanwhile, the convex section is matched with the curved rod, so that the strength of the end of the PVC sheath is effectively improved, and the end of the PVC sheath is not easy to deform under stress or crack;

the embedded strip and the arc plate on the embedded strip further improve the protection of the PVC sheath close to the cable end, and the PVC sheath at the cable end is pressed by the embedded strip and the arc plate, so that the problem that the PVC sheath at the cable end cracks and extends to the middle of the cable is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a power cable according to a preferred embodiment of the present utility model.

Fig. 2 is a schematic structural view of the PVC jacket shown in fig. 1.

Fig. 3 is a schematic structural view of the mouth guard assembly shown in fig. 1.

Fig. 4 is a schematic plan view of the power cable shown in fig. 1.

Reference numerals in the drawings: 1. a PVC sheath; 1a, an annular groove; 1b, grooving; 2. a mouth guard assembly; 21. a copper ring; 22. a curved rod; 23. an outer convex section; 24. folding the ring; 25. a fitting strip; 26. an arc-shaped plate; 3. a cable core; 4. an insulating polyvinyl chloride layer; 5. a rubber strip; 6. a crosslinked polyethylene insulation layer.

Description of the embodiments

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Specific implementations of the utility model are described in detail below in connection with specific embodiments.

Referring to fig. 1 to 4, an embodiment of the present utility model provides a power cable, which includes: PVC sheath 1 and mouth guard assembly 2.

In the embodiment of the present utility model, referring to fig. 4, a cable core 3 is disposed in the PVC sheath 1, an insulating PVC layer 4 is sleeved on the cable core 3, a plurality of rubber strips 5 distributed in a ring shape are embedded on the insulating PVC layer 4, a cross-linked polyethylene insulating layer 6 is sleeved on the outer side of the rubber strips 5, and the cross-linked polyethylene insulating layer 6 is embedded in the PVC sheath 1.

It should be noted that: set up a plurality of annular distributed's rubber strip 5 on insulating polyvinyl chloride layer 4, because rubber strip 5 is elastic structure to when the cable received external force, rubber strip 5 is reciprocal flexible, and the effectual pressure that buffer cable received prevents that cable core 3 atress from damaging the condition from taking place, improves compressive capacity and device stability, and crosslinked polyethylene insulating layer 6 makes the cable have good insulation and fire resistance.

In the embodiment of the present utility model, referring to fig. 1, 2 and 3, a port of the PVC sheath 1 is sleeved with a port protection component 2, the port protection component 2 includes a copper ring 21, a plurality of curved rods 22 distributed in a ring shape are fixedly embedded on the copper ring 21, the curved rods 22 are provided with outer protruding sections 23, the ports of the outer protruding sections 23 on the curved rods 22 are embedded on a folding ring 24, the folding ring 24 is buckled on the ports of the PVC sheath 1, the copper ring 21 and the curved rods 22 are both embedded in an annular groove 1a formed in the PVC sheath 1, specifically, the cross section of the folding ring 24 is in an L-shaped structure, the inner extending end of the folding ring 24 is buckled on the end face of the PVC sheath 1, and the annular surface of the folding ring 24 is embedded on an annular groove 1a formed in the PVC sheath 1;

the end face of the copper ring 21 is fixedly embedded with a plurality of annular embedded strips 25, the embedded strips 25 are embedded into the cutting grooves 1b formed in the PVC sheath 1, a plurality of equidistant arc plates 26 are embedded on each embedded strip 25, and the arc plates 26 on all the embedded strips 25 on the same plane form an annular structure.

It should be noted that: the end of the PVC sheath 1 is provided with a circle of curved rod 22, and as the curved rod 22 is provided with a section of convex section 23 which is convex outwards, when the end of the PVC sheath 1 is trampled or extruded, the convex section 23 forming an annular net structure plays a role in buffering the end of the PVC sheath 1, and meanwhile, the convex section 23 is matched with the curved rod 22 to effectively improve the strength of the end of the PVC sheath 1, so that the end of the PVC sheath 1 is not easy to deform under force or crack;

the embedded strip 25 and the arc plate 26 on the embedded strip 25 further improve the protection of the PVC sheath 1 close to the cable end, and the PVC sheath 1 is pressed by the embedded strip 25 and the arc plate 26, so that the problem that the PVC sheath 1 at the cable end cracks and extends to the middle of the cable is avoided.

The working principle of the power cable provided by the utility model is as follows:

a plurality of annularly-distributed rubber strips 5 are arranged on the insulating polyvinyl chloride layer 4, and the rubber strips 5 are of an elastic structure, so that when the cable is subjected to external force, the rubber strips 5 stretch back and forth, the pressure applied to the cable is effectively buffered, the situation that the cable core 3 is damaged due to stress is prevented, the pressure resistance and the device stability are improved, and the crosslinked polyethylene insulating layer 6 enables the cable to have good insulation and fire resistance;

the end of the PVC sheath 1 is provided with a circle of curved rod 22, and as the curved rod 22 is provided with a section of convex section 23 which is convex outwards, when the end of the PVC sheath 1 is trampled or extruded, the convex section 23 forming an annular net structure plays a role in buffering the end of the PVC sheath 1, and meanwhile, the convex section 23 is matched with the curved rod 22 to effectively improve the strength of the end of the PVC sheath 1, so that the end of the PVC sheath 1 is not easy to deform under force or crack; the embedded strip 25 and the arc plate 26 on the embedded strip 25 further improve the protection of the PVC sheath 1 close to the cable end, and the PVC sheath 1 is pressed by the embedded strip 25 and the arc plate 26, so that the problem that the PVC sheath 1 at the cable end cracks and extends to the middle of the cable is avoided.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A power cable, comprising:

PVC sheath (1), and

the mouth guard assembly (2) is sleeved on a port of the PVC sheath (1), the mouth guard assembly (2) comprises a copper ring (21), a plurality of curved rods (22) distributed in a ring shape are fixedly embedded on the copper ring (21), the Qu Xinggan (22) is provided with an outer convex section (23), the port of the outer convex section (23) on the Qu Xinggan (22) is embedded on a folding ring (24), the folding ring (24) is buckled on the port of the PVC sheath (1), and the copper ring (21) and the curved rods (22) are embedded in an annular groove (1 a) formed in the PVC sheath (1).

2. The power cable according to claim 1, characterized in that a plurality of annularly distributed engaging strips (25) are fixedly engaged with the end face of the copper ring (21), and the engaging strips (25) are engaged into the cutting grooves (1 b) formed in the PVC sheath (1).

3. A power cable according to claim 2, characterized in that a number of equally distributed arc plates (26) are fitted to each of the fitting strips (25), and that the arc plates (26) on all fitting strips (25) of the same plane form a ring-shaped structure.

4. The power cable according to claim 1, wherein the cross section of the folding ring (24) is of an L-shaped structure, the inner extending end of the folding ring (24) is buckled on the end face of the PVC sheath (1), and the annular face of the folding ring (24) is embedded on an annular groove (1 a) formed in the PVC sheath (1).

5. The power cable according to claim 1, characterized in that a cable core (3) is arranged in the PVC sheath (1), and an insulating polyvinyl chloride layer (4) is sleeved on the cable core (3).

6. The power cable according to claim 5, characterized in that a plurality of annularly distributed rubber strips (5) are embedded on the insulating polyvinyl chloride layer (4), a cross-linked polyethylene insulating layer (6) is sleeved outside the rubber strips (5), and the cross-linked polyethylene insulating layer (6) is embedded in the PVC sheath (1).