CN215118441U - Multi-layer corrosion-resistant power cable - Google Patents

Abstract

The utility model discloses a multilayer corrosion-resistant power cable, the outer surface of the cable body is provided with a wear-resistant layer, a supporting layer is arranged in the wear-resistant layer, the inner part of the supporting layer is fixedly connected with a belting layer, the inner part of the belting layer is provided with three strands of conductors, the outer surface of the conductor is provided with a shielding layer, an insulating layer is arranged between the shielding layer and the conductors, a filling layer is arranged between the belting layer and the shielding layer, any two cable bodies are fixedly connected by a connecting sleeve, the positions of the two sides of a shell body close to the edge are provided with mounting grooves, the bottom of the mounting groove is provided with threads, one side of the bottom of the mounting groove is provided with a plurality of clearance grooves which are distributed at equal intervals, the threads in the mounting groove are connected with movable rings, an insert is fixedly arranged at the middle position in the shell body, the edge positions of the clearance grooves are all fixedly connected with connecting bars, the connecting bars are fixedly connected with latch teeth by one side in the inner parts, the connecting strip is close to outer one side fixedly connected with trapezoidal piece, utilizes the latch to fasten the cable body of both sides.

Description

Multi-layer corrosion-resistant power cable

Technical Field

The utility model relates to a power cable technical field, concretely relates to corrosion-resistant power cable of multilayer.

Background

A power cable is a cable for transmitting and distributing electrical energy. The cable is commonly used for urban underground power grids, leading-out lines of power stations, internal power supply of working condition enterprises and underwater power transmission lines crossing rivers and sea, a power cable can generate certain heat in the using process, the heat generated in the long-term using process is accumulated to increase the temperature of the power cable, great damage can be caused to the power cable, the transmission capability of the power cable is reduced, and faults are caused; in addition, many cables are used in harsh environments, and the surfaces of the cables are susceptible to corrosion and abrasion, thereby causing damage to the cables.

The invention relates to the field of cables, and provides an anti-corrosion power cable which comprises a plurality of cable cores and a cable shell arranged outside the cable cores, wherein the cable cores contain conductors, conductor shielding layers, insulating shielding layers and copper strip shielding layers which sequentially cover the conductors, an optical fiber sleeve is arranged in the center of each cable core, a temperature measuring optical fiber is arranged in the optical fiber sleeve, a filling fixing layer is arranged in a gap between each cable core and the corresponding optical fiber sleeve, a flame-retardant fire-resistant layer, an electromagnetic shielding layer, a first anti-corrosion layer, an identification layer and a second anti-corrosion layer are sequentially arranged between the filling fixing layer and the cable shell from inside to outside, and the second anti-corrosion layer is of a transparent structure. The invention has the advantages that the temperature measurement optical fiber is connected with the monitoring equipment of the power cable terminal, so that the temperature rise condition of the power cable can be monitored at any time, and the power cable has the advantages of corrosion resistance, flame retardance, clear and visible cable identification and the like, but the cable has complex manufacturing process and higher production cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the present invention is to provide a multi-layer corrosion-resistant power cable, so as to achieve the following technical effects:

1. a supporting layer is arranged in the cable wear-resistant layer, and when the cable is twisted and bent, the form of the wear-resistant layer is recovered as soon as possible;

2. the two cables are connected through the connecting sleeve, the joint is protected, and corrosion at the joint is avoided.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a corrosion-resistant power cable of multilayer, cable body surface is provided with the wearing layer, wearing layer internally mounted has the supporting layer, the inside fixedly connected with band layer of supporting layer, the inside of band layer is provided with three strands of conductors, the surface of conductor is provided with the shielding layer, be provided with the insulating layer between shielding layer and the conductor, be provided with the filling layer between band layer and the shielding layer, by adapter sleeve fixed connection between two arbitrary cable bodies.

As a further aspect of the present invention: the outer surface of the supporting layer is provided with a plurality of grooves which are arranged at equal intervals.

As a further aspect of the present invention: the adapter sleeve includes the casing, the mounting groove has been seted up to the casing both sides near the position at edge, the bottom of mounting groove is provided with the screw thread, a plurality of clearance grooves have been seted up to bottom one side of mounting groove, and is a plurality of the clearance groove equidistance distributes, threaded connection has the movable ring in the mounting groove, the inside intermediate position fixed mounting of casing has plug-in components, the equal fixedly connected with connecting strip in marginal position of clearance groove, the connecting strip leans on interior one side fixedly connected with latch, the connecting strip leans on outer one side fixedly connected with trapezoidal piece.

As a further aspect of the present invention: the cable body is inserted into the plug-in unit on two sides, the top of the trapezoidal block is abutted to the movable ring, the lower end of the latch is clamped with the outer surface of the cable body, one side of the bevel edge of the trapezoidal block is close to the movable ring, and the width of the movable ring is larger than that of the clearance groove.

The utility model has the advantages that:

1. the cable comprises a cable body, and is characterized in that a wear-resistant layer is arranged on the outer surface of the cable body, a supporting layer is arranged in the wear-resistant layer, a plurality of grooves are formed in the outer surface of the supporting layer, the grooves are arranged at equal intervals, the power cable can generate certain heat in the using process, the heat generated in the long-term using process is accumulated to increase the temperature of the power cable, the inner filling layer can expand to a certain extent, the grooves provide more space in the cable, the extrusion of the outermost wear-resistant layer is reduced, the service life of the wear-resistant layer is prolonged, and the wear-resistant performance of the cable is improved; meanwhile, the supporting layer is arranged, so that the cable is twisted, and the shape of the wear-resistant layer is recovered as soon as possible when the cable is bent.

2. When the adapter sleeve is installed, the cables on two sides are inserted into the plug-in unit, the movable ring is rotated, so that the movable ring moves towards two sides, the movable ring extrudes the upper surface of the trapezoidal block to enable the connecting strip to incline, the clamping teeth are clamped with the outer surface of the cable, when the cables on two sides are fixed, the joint is protected to a certain extent, and the corrosion of the joint is avoided.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of the internal structure of the cable of the present invention;

fig. 2 is a schematic view of the installation position of the connecting sleeve of the present invention;

fig. 3 is a schematic view of the external structure of the connecting sleeve of the present invention;

fig. 4 is the schematic view of the internal structure of the connecting sleeve of the present invention.

In the figure: 1. a wear layer; 2. a belting layer; 3. a filling layer; 4. a shielding layer; 5. a support layer; 6. a conductor; 7. an insulating layer; 8. a cable body; 9. connecting sleeves; 901. a housing; 902. a movable ring; 903. a clearance groove; 904. mounting grooves; 905. a plug-in; 906. a connecting strip; 907. a trapezoidal block; 908. and (4) clamping teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model relates to a multilayer corrosion-resistant power cable, a wear-resistant layer 1 is arranged on the outer surface of a cable body 8, a support layer 5 is arranged inside the wear-resistant layer 1, a plurality of grooves are arranged on the outer surface of the support layer 5, the grooves are arranged at equal intervals, because the power cable can generate certain heat in the using process, the heat generated in the long-term using process is accumulated to increase the temperature of the power cable, the internal filler can expand to a little extent, the grooves are arranged to provide more space inside the cable, a belting layer 2 is fixedly connected inside the support layer 5, three conductors 6 are arranged inside the belting layer 2, a shielding layer 4 is arranged on the outer surface of the conductor 6, an insulating layer 7 is arranged between the shielding layer 4 and the conductor 6, a filling layer 3 is arranged between the belting layer 2 and the shielding layer 4, any two cable bodies 8 are fixedly connected by a connecting sleeve 9.

The connecting sleeve 9 comprises a shell 901, mounting grooves 904 are formed in the positions, close to the edges, of the two sides of the shell 901, threads are arranged at the bottom of the mounting grooves 904, a plurality of clearance grooves 903 are formed in one side of the bottom of the mounting grooves 904, the clearance grooves 903 are distributed equidistantly, movable rings 902 are connected in the mounting grooves 904 in a threaded manner, inserts 905 are fixedly arranged in the middle of the inside of the shell 901, connecting strips 906 are fixedly connected to the edges of the clearance grooves 903, a latch 908 is fixedly connected to the inner side of each connecting strip 906, a trapezoidal block 907 is fixedly connected to the outer side of each connecting strip 906, when the connecting sleeve 9 is mounted, cables on the two sides are inserted into the inserts 905, the movable rings 902 are rotated to enable the movable rings 902 to move towards the two sides, the movable rings 902 press the upper surfaces of the trapezoidal blocks 907 to enable the connecting strips 906 to incline, and the latch 908 is clamped with the outer surfaces of the cables, and fixing the cables on two sides.

The cable body 8 on two sides is inserted into the plug-in 905, the top of the trapezoidal block 907 is abutted to the movable ring 902, the lower end of the latch 908 is clamped with the outer surface of the cable body 8, one side of the inclined edge of the trapezoidal block 907 is close to the movable ring 902, and the width of the movable ring 902 is larger than that of the clearance groove 903.

The working principle is as follows:

1. the outer surface of the cable body 8 is provided with the wear-resistant layer 1, the supporting layer 5 is arranged in the wear-resistant layer 1, the outer surface of the supporting layer 5 is provided with a plurality of grooves, the grooves are arranged at equal intervals, the power cable can generate certain heat in the using process, the heat generated in the long-term using process is accumulated to increase the temperature of the power cable, the internal filling layer 3 can expand to a certain extent, the grooves are arranged to provide more space in the cable, and the extrusion to the wear-resistant layer 1 at the outermost side is reduced;

2. when the connecting sleeve 9 is installed, cables on two sides are inserted into the inserting piece 905, the movable ring 902 is rotated, the movable ring 902 moves towards two sides, the movable ring 902 presses the upper surface of the trapezoidal block 907, the connecting strip 906 inclines, the clamping teeth 908 are clamped with the outer surfaces of the cables, and the cables on two sides are fixed.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (4)

1. The utility model provides a corrosion-resistant power cable of multilayer, cable body (8) surface is provided with wearing layer (1), its characterized in that, wearing layer (1) internally mounted has supporting layer (5), the inside fixedly connected with band layer (2) of supporting layer (5), the inside of band layer (2) is provided with three-strand conductor (6), the surface of conductor (6) is provided with shielding layer (4), be provided with insulating layer (7) between shielding layer (4) and conductor (6), be provided with filling layer (3) between band layer (2) and shielding layer (4), by adapter sleeve (9) fixed connection between two arbitrary cable bodies (8).

2. A multilayer corrosion resistant power cable according to claim 1, characterized in that the outer surface of the support layer (5) is provided with a plurality of grooves, said grooves being equally spaced.

3. The multilayer corrosion-resistant power cable according to claim 1, wherein the connecting sleeve (9) comprises a housing (901), mounting grooves (904) are formed in positions, close to edges, of two sides of the housing (901), threads are arranged at the bottom of the mounting grooves (904), a plurality of clearance grooves (903) are formed in one side of the bottom of the mounting grooves (904), the clearance grooves (903) are distributed equidistantly, a movable ring (902) is connected to the middle of the mounting grooves (904) through threads, an insert (905) is fixedly mounted in the middle of the inside of the housing (901), connecting strips (906) are fixedly connected to edge positions of the clearance grooves (903), clamping teeth (908) are fixedly connected to one side of the connecting strips (906) close to the inside, and trapezoidal blocks (907) are fixedly connected to one side of the connecting strips (906) close to the outside.

4. The multilayer corrosion-resistant power cable according to claim 3, wherein the cable bodies (8) on two sides are inserted into the insertion piece (905), the top of the trapezoidal block (907) abuts against the movable ring (902), the lower end of the latch (908) is clamped with the outer surface of the cable body (8), one side of the inclined edge of the trapezoidal block (907) is close to the movable ring (902), and the width of the movable ring (902) is greater than that of the clearance groove (903).

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