CN216528185U

CN216528185U - Buried power cable

Info

Publication number: CN216528185U
Application number: CN202122179740.4U
Authority: CN
Inventors: 王成生
Original assignee: Xuancheng Nantian Power Engineering Co ltd
Current assignee: Xuancheng Nantian Power Engineering Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-05-13
Anticipated expiration: 2031-09-09

Abstract

A buried power cable comprises a cable body, wherein the cable body comprises a polyvinyl chloride outer sheath, and a copper braid layer is arranged inside the polyvinyl chloride outer sheath; the inner part of the copper braided layer is connected with a silicon rubber layer with a triangular structure, and a glass fiber filling layer is filled between the copper braided layer and the silicon rubber layer; and a cable core is arranged in the silicone rubber layer, and the cable core and the silicone rubber layer are filled through a Teflon filling layer. The buried power cable provided by the utility model adopts polyvinyl chloride as the outer sheath, so that the buried power cable not only has a good corrosion prevention effect, but also has a good buffering effect due to the outer sheath with a special structure, the compression resistance and the collision prevention effect can be effectively improved, and the service life of the cable is prolonged.

Description

Buried power cable

Technical Field

The utility model belongs to the technical field of cables, and particularly relates to a buried power cable.

Background

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 transmission lines under river-crossing seawater; in the power line, the proportion of the cable is gradually increasing; power cables are cable products used in the trunk lines of power systems to transmit and distribute high power electrical energy, including various voltage classes, 1-500KV and above, and various insulated power cables. Some power cables are buried underground in order to facilitate the arrangement, the existing buried power cables are poor in corrosion resistance, and meanwhile, no good pressure-resistant structure exists, so that the service life is short.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a buried power cable, which has the following specific technical scheme:

a buried power cable comprises a cable body, wherein the cable body comprises a polyvinyl chloride outer sheath, and a copper braid layer is arranged inside the polyvinyl chloride outer sheath; the inner part of the copper braided layer is connected with a silicon rubber layer with a triangular structure, and a glass fiber filling layer is filled between the copper braided layer and the silicon rubber layer; and a cable core is arranged in the silicone rubber layer, and the cable core and the silicone rubber layer are filled through a Teflon filling layer.

Furthermore, a plurality of bulges protruding outwards are distributed on the outer surface of the polyvinyl chloride outer sheath at equal intervals.

Furthermore, the cable bodies are connected through a first connector and a second connector respectively, the first connector comprises a first fixing piece and a plug, the second connector comprises a second fixing piece and a second fixing sleeve, the first fixing piece and the second fixing piece are identical in structure, and the first fixing piece and the second fixing piece are connected with the cable bodies; the plug is connected with the second fixing sleeve in a matching way.

Furthermore, the plug adopts a double-layer structure, and the inner layer of the plug is hollow and is communicated with the first fixing piece; the outer layer cross-section of the plug is of a trapezoidal structure, and the inner layer and the outer layer of the plug are connected through an elastic plate.

Furthermore, a plurality of connecting grooves are arranged on the outer side of the outer layer of the plug at equal intervals, and the connecting grooves are of a triangular structure; the connecting groove is connected with a connecting plate on the inner side of the second fixing sleeve in a matched manner; the second fixing sleeve is connected with the second fixing piece.

Further, first mounting includes plastics parcel layer, fixed cover, bolt and extension board, the outside on plastics parcel layer is equipped with fixed cover, just the tip of fixed cover is equipped with the opening, the opening part of fixed cover tip outwards extends and forms two extension boards, and two pass through bolted connection between the extension board.

Furthermore, the side surfaces of the two extension plates are provided with a plurality of bulges and grooves, and the bulges and the grooves between the two extension plates are connected in a matched mode.

The utility model has the beneficial effects that: the buried power cable provided by the utility model adopts polyvinyl chloride as the outer sheath, so that the buried power cable not only has a good corrosion prevention effect, but also has a good buffering effect due to the outer sheath with a special structure, the compression resistance and the collision prevention effect can be effectively improved, and the service life of the cable is prolonged.

Drawings

Fig. 1 shows a schematic structural view of a buried power cable of the present invention;

FIG. 2 is a schematic view showing a split structure of the cable of the present invention when connected;

FIG. 3 shows a schematic structural view of a first fastener of the present invention;

shown in the figure: 1. the cable comprises a cable body, 11, a polyvinyl chloride outer sheath, 12, a copper braided layer, 13, a glass fiber filling layer, 14, a silicon rubber layer, 15, a cable core, 16, a Teflon filling layer, 2, a first connecting head, 21, a first fixing piece, 211, a plastic wrapping layer, 212, a fixing sleeve, 213, a bolt, 214, an extending plate, 2141, a protrusion, 2142, a groove, 22, a plug, 221, an elastic plate, 222, a connecting groove, 3, a second connecting head, 31, a second fixing piece, 32, a second fixing sleeve, 321 and a connecting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Fig. 1 shows a schematic overall structure diagram of an embodiment of the utility model, exemplarily, as shown in fig. 1, the buried power cable includes a cable body 1, the cable body 1 includes a polyvinyl chloride outer sheath 11, the polyvinyl chloride outer sheath 11 has good corrosion resistance, and a copper braid 12 is arranged inside the polyvinyl chloride outer sheath 11; the copper braid 12 has a good shielding effect; the inner part of the copper braided layer 12 is connected with the silicon rubber layer 14 with a triangular structure, and the silicon rubber layer 14 with the triangular structure can effectively protect the cable core, so that the cable core is not easy to deform due to excessive extrusion; a glass fiber filling layer 13 is filled between the copper woven layer 12 and the silicon rubber layer 14; the glass fiber filling layer 13 can increase the overall strength of the cable; a cable core 15 is arranged inside the silicone rubber layer 14, and the cable core 15 and the silicone rubber layer 14 are filled through a Teflon filling layer 16; the Teflon filling layer 16 has a good insulation effect; the buried power cable provided by the utility model adopts polyvinyl chloride as the outer sheath, so that the buried power cable not only has a good corrosion prevention effect, but also has a good buffering effect due to the outer sheath with a special structure, the compression resistance and the collision prevention effect can be effectively improved, and the service life of the cable is prolonged.

As an improvement of the technical scheme, a plurality of bulges protruding outwards are distributed on the outer surface of the polyvinyl chloride outer sheath 11 at equal intervals, and the buffering effect is good.

As an improvement of the above technical solution, the cable bodies 1 are connected by a first connector 2 and a second connector 3 respectively, as shown in fig. 2 and 3, the first connector 2 includes a first fixing member 21 and a plug 22, the second connector 3 includes a second fixing member 31 and a second fixing sleeve 32, the first fixing member 21 and the second fixing member 31 have the same structure, and the first fixing member 21 and the second fixing member 31 are both connected with the cable body 1; the plug 22 is connected with the second fixing sleeve 32 in a matching way; the connection between the two cables can be realized by inserting the plug 22 into the second fixing sleeve 32, and the connection is convenient and quick.

As an improvement of the above technical solution, the plug 22 adopts a double-layer structure, and an inner layer of the plug 22 is hollow and is communicated with the first fixing member 21; the outer layer of the plug 22 has a trapezoidal cross section, and the inner layer and the outer layer of the plug 22 are connected through an elastic plate 221.

As an improvement of the above technical solution, a plurality of connection slots 222 are equidistantly arranged on the outer side of the outer layer of the plug 22, and the connection slots 222 are in a triangular structure; the connecting groove 222 is connected with the connecting plate 321 at the inner side of the second fixing sleeve 32 in a matching way; the second fixing sleeve 32 is connected with the second fixing piece 31; when the plug 22 is connected, the plug 22 is inserted into the second fixing sleeve 32, the outer layer of the plug 22 is pressed at the moment, the connecting plate 321 enters the connecting groove 222 after the plug is inserted, the tight connection between the plug and the connecting groove is realized, the connection is tight and firm, and the plug is not easy to separate.

As an improvement of the above technical solution, the first fixing member 21 includes a plastic wrapping layer 211, a fixing sleeve 212, a bolt 213 and an extension plate 214, the fixing sleeve 212 is disposed on the outer side of the plastic wrapping layer 211, an opening is disposed at an end of the fixing sleeve 212, the opening at the end of the fixing sleeve 212 extends outwards to form two extension plates 214, and the two extension plates 214 are connected through the bolt 213.

As an improvement of the above technical solution, the side surfaces of the two extension plates 214 are respectively provided with a plurality of protrusions 2141 and grooves 2142, and the protrusions 2141 and the grooves 2142 between the two extension plates 214 are connected in a matching manner; when the first connector 2 and the second connector 3 are connected with a cable, the cable is inserted into the wrapping layer 211, then the two extending plates 214 are fixed through the bolts 213 and locked through the fixing sleeves 212, and the connectors are tightly connected with the cable.

The utility model is implemented as follows:

when two cables are connected, the two connectors are firstly connected with the two cables to be connected, and when the two cables are connected, the cables are inserted into the wrapping layer 211, then the two extending plates 214 are fixed through the bolts 213 and locked through the fixing sleeve 212, so that the connectors are tightly connected with the cables; then, the two connectors are connected to realize the connection between the cables, and when the connectors are connected, the plug 22 is inserted into the second fixing sleeve 32, at this time, the outer layer of the plug 22 is pressed, and the connecting plate 321 enters the connecting groove 222 after the plug is inserted.

The buried power cable provided by the utility model adopts polyvinyl chloride as the outer sheath, so that the buried power cable not only has a good corrosion prevention effect, but also has a good buffering effect due to the outer sheath with a special structure, the compression resistance and the collision prevention effect can be effectively improved, and the service life of the cable is prolonged.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A bury formula power cable which characterized in that: the cable comprises a cable body (1), wherein the cable body (1) comprises a polyvinyl chloride outer sheath (11), and a copper braid layer (12) is arranged inside the polyvinyl chloride outer sheath (11); the inner part of the copper braided layer (12) is connected with a silicon rubber layer (14) with a triangular structure, and a glass fiber filling layer (13) is filled between the copper braided layer (12) and the silicon rubber layer (14); a cable core (15) is arranged inside the silicone rubber layer (14), and the cable core (15) and the silicone rubber layer (14) are filled through a Teflon filling layer (16).

2. A buried power cable as claimed in claim 1, wherein: a plurality of bulges protruding outwards are distributed on the outer surface of the polyvinyl chloride outer sheath (11) at equal intervals.

3. A buried power cable as claimed in claim 1, wherein: the cable comprises a cable body (1), and is characterized in that the cable body (1) is connected with the second connector (3) through a first connector (2), the first connector (2) comprises a first fixing piece (21) and a plug (22), the second connector (3) comprises a second fixing piece (31) and a second fixing sleeve (32), the first fixing piece (21) and the second fixing piece (31) have the same structure, and the first fixing piece (21) and the second fixing piece (31) are both connected with the cable body (1); the plug (22) is matched and connected with the second fixing sleeve (32).

4. A buried power cable according to claim 3, wherein: the plug (22) adopts a double-layer structure, and the inner layer of the plug (22) is hollow and is communicated with the first fixing piece (21); the cross section of the outer layer of the plug (22) is of a trapezoidal structure, and the inner layer and the outer layer of the plug (22) are connected through an elastic plate (221).

5. A buried power cable according to claim 4, wherein: a plurality of connecting grooves (222) are equidistantly arranged on the outer side of the outer layer of the plug (22), and the connecting grooves (222) are of triangular structures; the connecting groove (222) is matched and connected with a connecting plate (321) at the inner side of the second fixing sleeve (32); the second fixing sleeve (32) is connected with the second fixing piece (31).

6. A buried power cable as claimed in claim 5, wherein: first mounting (21) include plastic parcel layer (211), fixed cover (212), bolt (213) and extension board (214), the outside of plastic parcel layer (211) is equipped with fixed cover (212), just the tip of fixed cover (212) is equipped with the opening, the opening part of fixed cover (212) tip outwards extends and forms two extension boards (214), and two connect through bolt (213) between extension board (214).

7. A buried power cable as claimed in claim 6, wherein: the side surfaces of the two extension plates (214) are provided with a plurality of protrusions (2141) and grooves (2142), and the protrusions (2141) and the grooves (2142) between the two extension plates (214) are connected in a matched mode.