CN115641990B

CN115641990B - Extrusion-resistant and cracking-resistant power cable and use method thereof

Info

Publication number: CN115641990B
Application number: CN202211281429.3A
Authority: CN
Inventors: 李鹏鹏; 杨超; 付艇; 罗文�; 肖成; 汤隆平; 齐红磊
Original assignee: Jiangxi Hengshun Cable Co ltd
Current assignee: Jiangxi Hengshun Cable Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-04-25
Anticipated expiration: 2042-10-19
Also published as: CN115641990A

Abstract

The invention discloses an extrusion-resistant anti-cracking power cable and a use method thereof, wherein the extrusion-resistant anti-cracking power cable comprises a cable body and a bending treatment device matched with the cable body, the cable body passes through the bending treatment device, the cable body comprises a wire core layer, a first anti-torsion layer, a second anti-torsion layer, a protective layer, an anti-seepage layer and an outer wrapping layer, a strip-shaped isolation pad is arranged in the wire core layer, the cross section of the strip-shaped isolation pad is of a cross-shaped structure, and the wire core layer comprises a first wire core, a second wire core, a third wire core and a fourth wire core. The beneficial effects of the invention are as follows: compact structure, lighten workman's working strength, improve the life of cable.

Description

Extrusion-resistant and cracking-resistant power cable and use method thereof

Technical Field

The invention relates to the technical field of cable bodies, in particular to an extrusion-resistant and cracking-resistant power cable and a use method thereof.

Background

The power cable is a cable for transmitting and distributing electric energy, has wide application in various industries such as communication, civil use and the like, is currently common and has an overhead cable or an underground cable, and is provided with a sheath material on the outer layer of the cable for protecting the cable and prolonging the service life of the cable so as to ensure the safe operation of the cable, thus the cable sheath material is required to have strong wear resistance, ageing resistance and excellent mechanical property.

However, the existing production method can produce and prepare the cable, but there are a plurality of defects: 1. when the existing cable body is at the splice, the strength of the joint is lower, and when the cable body is outdoor, the service life of the weak part is reduced due to bending of the cable. 2. In the prior art, the single cable is mainly used for different-direction arrangement, so that the actual construction needs are not met, and the device is inconvenient to use. 3. When the existing cable body is laid, winding is easy to occur, so that torsion of different degrees occurs in the cable core, and the service life of the cable body is influenced.

Given the above-mentioned technical drawbacks, there is a need for a crush-resistant and crack-resistant power cable and method of use.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the extrusion-resistant and cracking-resistant power cable which has a compact structure, reduces the working strength of workers and prolongs the service life of the cable and the use method.

The aim of the invention is achieved by the following technical scheme: the extrusion-resistant anti-cracking power cable comprises a cable body and a bending treatment device matched with the cable body, wherein the cable body passes through the bending treatment device and comprises a wire core layer, a first anti-torsion layer, a second anti-torsion layer, a protective layer, an anti-seepage layer and an outer wrapping layer, a strip-shaped isolation pad is arranged in the wire core layer, the cross section of the strip-shaped isolation pad is of a cross-shaped structure, and the wire core layer comprises a first wire core, a second wire core, a third wire core and a fourth wire core;

the novel cable comprises a cable core, a cable core I, a cable core II, a cable core III and a cable core IV, wherein the cable core I, the cable core II, the cable core III and the cable core IV are respectively located in a groove of a cross-shaped structure, anti-torsion parts matched with each other are arranged on the anti-torsion layer I and the anti-torsion layer II, the inside of the bending processing device is of a cavity structure, an elastic anti-bending assembly is arranged inside the bending processing device, the bending processing device comprises a transverse plate and an inclined plate, through hole threads are formed in the transverse plate, the elastic anti-bending assembly comprises a rotating shaft, two ends of the rotating shaft are movably fixed at the top and the bottom of the bending processing device, and an elastic assembly is arranged on the rotating shaft.

In the extrusion-resistant and fracture-resistant power cable, the transverse plate is provided with a transverse plate I, a transverse plate II, a transverse plate III and a transverse plate IV, the inclined plate is provided with an inclined plate I, an inclined plate II, an inclined plate III and an inclined plate IV, the transverse plate I, the transverse plate II, the transverse plate III and the transverse plate IV are arranged in a staggered manner, the inclined plate I, the inclined plate II, the inclined plate III and the inclined plate IV are surrounded by a top plate and a bottom plate to form the bending processing device, through holes are formed in the inclined plate I, the inclined plate II, the inclined plate III and the inclined plate IV, and an elastic component II which is matched with the elastic component is arranged on the inclined plate I, the inclined plate II, the inclined plate III and the inclined plate IV.

In the extrusion-resistant and cracking-resistant power cable, the elastic component II comprises the elastic plate I and the springs connected with one ends of the elastic plates, the other ends of the springs are connected to the inclined plates, the elastic plate I is of an arc-shaped structure, two ends of the elastic plate I are respectively arranged at the end parts of through hole threads on two adjacent transverse plates, and at least 3 springs are arranged on the section of each elastic plate I.

In the extrusion-resistant and cracking-resistant power cable, the dustproof mesh is arranged between the elastic component and the elastic component II, the elastic component is arranged on the middle part of the dustproof mesh, the dustproof mesh is at least provided with 4 pieces, the elastic component divides the dustproof mesh into the first dustproof mesh and the second dustproof mesh, the middle parts of the first dustproof mesh and the second dustproof mesh are provided with the threading through holes, and the threading through holes are elastic.

In the extrusion-resistant and cracking-resistant power cable, an arc-shaped bulge is arranged between an outer wrapping layer and an impermeable layer, and the inside of the arc-shaped bulge is of a cavity structure; the anti-torsion part comprises a groove arranged on the first anti-torsion layer and a protrusion matched with the groove, wherein the protrusion is arranged above the second anti-torsion layer, a buffer gap is arranged between the protrusion and the side wall of the groove, the protrusion is made of a rigid material, and the threading through hole and the through hole thread are correspondingly arranged.

In the extrusion-resistant and cracking-resistant power cable, the elastic component comprises a first arc-shaped plate, a second arc-shaped plate, a third arc-shaped plate and a fourth arc-shaped plate, wherein the first arc-shaped plate, the second arc-shaped plate, the third arc-shaped plate and the fourth arc-shaped plate are respectively provided with three sections of freely telescopic sections, the first telescopic section, the second telescopic section and the third telescopic section are respectively connected through elastic components.

In the extrusion-resistant and cracking-resistant power cable, the first telescopic section, the second telescopic section and the third telescopic section are respectively provided with an annular top plate, the cross sections of the annular top plates are of trapezoid structures, arc-shaped grooves are formed in the annular top plates, an auxiliary tightening net is arranged between the two annular top plates, the annular top plates are elastic plates, and the inside of the annular top plates is of a cavity structure.

In the extrusion-resistant and cracking-resistant power cable, the butt joint rod is arranged on the through hole thread and comprises an L-shaped structure and a straight-line structure, and a right angle part inside the L-shaped structure is a clamping buffer part.

In the application method of the extrusion-resistant and cracking-resistant power cable, the method comprises the following steps:

s1, an application method of the extrusion-resistant and cracking-resistant power cable specifically comprises the following steps:

s11, firstly, placing a bending processing device at a corner to be turned according to the requirement of site construction, and simultaneously enabling a batch of cable bodies to sequentially pass through the bending processing device;

s12, when different cable bodies need to face different directions, an operator can select an L-shaped structure thread bush or a straight structure thread bush according to actual needs;

s13, place the in-process, because elastic component and elastic component two 'S setting for can place the cable of batch, bend processing apparatus and cable body' S place simultaneously, can prevent the damage of cable body weak department when preventing to bend the department and appear damaging.

The invention has the following advantages:

1. the cable body passes through the bending treatment device, the cable body comprises a wire core layer, a first torsion preventing layer, a second torsion preventing layer, a protective layer, an impermeable layer and an outer wrapping layer, a strip-shaped isolation pad is arranged in the wire core layer, the cross section of the strip-shaped isolation pad is of a cross-shaped structure, the wire core layer comprises a first wire core, a second wire core, a third wire core and a fourth wire core, the first torsion preventing layer and the second torsion preventing layer are mutually arranged, and the first torsion preventing layer and the second torsion preventing layer are integrally formed with the wire core and are in limit rotation with the outer wrapping layer, so that the cable body is prevented from being excessively twisted in the use process, and the service life of the cable body is influenced.

2. According to the cable, the first cable core, the second cable core, the third cable core and the fourth cable core are respectively located in the grooves of the cross-shaped structure, so that the cable cores in different layers are prevented from rotating in the rotating process, the first torsion preventing layer and the second torsion preventing layer are respectively provided with torsion preventing components which are matched with each other, the inside of the bending processing device is of a cavity structure, the bending processing device is internally provided with an elastic bending preventing component, the bending processing device comprises a transverse plate and an inclined plate, the transverse plate is provided with through hole threads, the elastic bending preventing component comprises a rotating shaft, two ends of the rotating shaft are movably fixed at the top and the bottom of the bending processing device, the rotating shaft is provided with the elastic component, and the mutual matching between the elastic component and the second elastic component can ensure that different numbers of cable bodies are placed.

3. The transverse plate of the invention is provided with a transverse plate I, a transverse plate II, a transverse plate III and a transverse plate IV, the inclined plate is provided with an inclined plate I, an inclined plate II, an inclined plate III and an inclined plate IV, the transverse plate I, the transverse plate II, the transverse plate III and the inclined plate IV are arranged in a staggered way, the transverse plate I, the transverse plate II, the transverse plate III and the transverse plate IV are arranged vertically on the horizontal plane, so that the cable body can be quickly arranged in three different directions, the bending processing device is arranged at a position which is not polluted according to actual needs and is used together with a top plate and a bottom plate to form the bending processing device, the inclined plate I, the inclined plate II, the inclined plate III and the inclined plate IV are all provided with through holes, the inclined plate I, the inclined plate II, the inclined plate III and the inclined plate IV are provided with elastic components II which are mutually matched with the elastic components, the inclined plate II and the spring components and the dustproof arrangement can initially block external pollution sources,

drawings

Fig. 1 is a schematic structural view of a cable body according to the present invention;

FIG. 2 is a schematic diagram of a bending apparatus according to the present invention;

FIG. 3 is a schematic view of the cable body and bending device of the present invention;

FIG. 4 is an enlarged partial schematic view of FIG. 1 at A;

FIG. 5 is a schematic cross-sectional view at B-B in FIG. 2;

FIG. 6 is an enlarged partial schematic view of FIG. 5C;

FIG. 7 is a schematic cross-sectional view at D-D of FIG. 5;

FIG. 8 is an enlarged partial schematic view at E in FIG. 2;

fig. 9 is a schematic cross-sectional view at F-F in fig. 2.

In the figure, a cable body 1, a bending processing device 2, a wire core layer 3, a first torsion preventing layer 4, a second torsion preventing layer 5, a protective layer 6, an impermeable layer 7, an outer wrapping layer 8, a strip-shaped isolation pad 9, a first wire core 10, a second wire core 11, a third wire core 12, through hole threads 14, a rotating shaft 15, a first transverse plate 16, a second transverse plate 17, a third transverse plate 18, a fourth transverse plate 19, a first inclined plate 20, a second inclined plate 21, a third inclined plate 22, a fourth inclined plate 23, a through hole 25, a first elastic plate 26, a dustproof mesh 27, an elastic component 28, a first dustproof mesh 29, a second dustproof mesh 30, a threading through hole 31, an arc-shaped protrusion 32, a groove 33, a protrusion 34, an arc-shaped plate 35, an arc-shaped plate 36, an arc-shaped plate 37, an arc-shaped plate fourth 38, a first telescopic section 39, a second telescopic section 40, a third telescopic section 41, an annular top plate 42, an arc-shaped groove 44, an auxiliary jacking mesh 45 and a butt joint rod 46.

Description of the embodiments

The invention is further described below with reference to the accompanying drawings, the scope of the invention not being limited to the following:

as shown in fig. 1-9, an extrusion-resistant and fracture-resistant power cable comprises a cable body 1 and a bending processing device 2 which is mutually matched with the cable body 1, wherein the cable body 1 passes through the bending processing device 2, the cable body 1 comprises a first wire core layer 3, a first anti-torsion layer 4, a second anti-torsion layer 5, a protective layer 6, an anti-seepage layer 7 and an outer wrapping layer 8, a strip-shaped isolation pad 9 is arranged in the wire core layer 3, the cross section of the strip-shaped isolation pad 9 is of a cross-shaped structure, and the strip-shaped isolation pad 9 enables different wire cores to be insulated and separated, and the wire core layer comprises a first wire core 10, a second wire core 11, a third wire core 12 and a fourth wire core;

the first 10, the second 11, the third 12 and the fourth are located the recess of cross structure respectively in sinle silk, all be equipped with the anti-torsion part of mutually supporting on anti-torsion layer one 4 and the anti-torsion layer two 5, the inside of processing apparatus 2 of bending is the cavity structure, the inside of processing apparatus 2 of bending is equipped with elasticity and prevents bending the subassembly, processing apparatus of bending includes transverse plate and hang plate, cooperation between transverse plate and the hang plate makes the processing apparatus of bending have different inclined planes, the effect of placing under the different environment has been improved, be equipped with through-hole screw thread 14 on the transverse plate, elasticity prevents bending the subassembly and includes pivot 15, but the free rotation of pivot 15 makes can prevent folding processing with the cable body 1 that penetrates, and the both ends of pivot 15 are movable fixing at processing apparatus's of bending top and bottom, be equipped with elasticity subassembly on the pivot 15.

The transverse plate is provided with a transverse plate I16, a transverse plate II 17, a transverse plate III 18 and a transverse plate IV 19, the inclined plate is provided with an inclined plate I20, an inclined plate II 21, an inclined plate III 22 and an inclined plate IV 23, the transverse plate I16, the transverse plate II 17, the transverse plate III 18 and the transverse plate IV 19 are arranged in a staggered mode with the inclined plate I20, the inclined plate II 21, the inclined plate III 22 and the inclined plate IV 23 and enclose a bending processing device with the top plate and the bottom plate, through holes 25 are formed in the inclined plate I20, the inclined plate II 21, the inclined plate III 22 and the inclined plate IV 23, the arrangement of the through holes 25 enables the cable body 1 in batches to dissipate heat, and elastic components II matched with the elastic components are arranged on the inclined plate I20, the inclined plate II 21, the inclined plate III 22 and the inclined plate IV 23.

The second elastic component comprises a first elastic plate 26 and a spring connected with one end of the first elastic plate 26, the second elastic component and the elastic component are matched with each other so that the cable body can be clamped between the first elastic plate and the second elastic plate, the other end of the spring is connected to the inclined plate, the first elastic plate 26 is of an arc-shaped structure, the two ends of the first elastic plate 26 are respectively arranged at the end parts of the through hole threads 14 on two adjacent transverse plates, and at least 3 springs are arranged on the section of each first elastic plate 26.

Be equipped with dustproof screen cloth 27 between elastic component and the elastic component second for bend and be in under both elastic force's effect, when preventing excessive buckling, guaranteed the weak control protection to cable junction, be convenient for the workman to maintain, be equipped with elastomeric element 28 on dustproof screen cloth 27's the middle part, dustproof screen cloth 27 is equipped with 4 at least, elastomeric element 28 cuts apart dustproof screen cloth into first dustproof screen cloth 29 and second dustproof screen cloth 30, be equipped with threading through-hole 31 on the middle part of first dustproof screen cloth 29 and second dustproof screen cloth 30, and just to through-hole screw thread 14, thereby guaranteed the entering of cable body, and threading through-hole 31 all has elasticity.

An arc-shaped bulge 32 is arranged between the outer wrapping layer 8 and the impermeable layer 7, and a cavity structure is arranged inside the arc-shaped bulge 32; the anti-torsion part comprises a groove 33 arranged on the first anti-torsion layer 4 and a bulge 34 matched with the groove 33, wherein the bulge 34 is arranged above the second anti-torsion layer 5, and a buffer gap is arranged between the bulge 34 and the side wall of the groove 33, so that local rotation can be carried out in the use process, excessive torsion of a wire core layer is prevented, the bulge 34 is made of a rigid material, and the threading through hole 31 and the through hole thread 14 are arranged in a mutually corresponding manner.

The elastic component includes arc one 35, arc two 36, arc three 37 and arc four 38, and arc one 35, arc two 36, arc three 37 and arc four 38's multistage setting for can satisfy the use of different cable body 1 placement layer, arc one 35, arc two 36, arc three 37 and arc four 38 all are equipped with three sections but the free flexible section, and are scalable section one 39, scalable section two 40 and scalable section three 41 respectively, scalable section one 39, scalable section two 40 and scalable section three 41 between be elastic component connection.

The first telescopic section 39, the second telescopic section 40 and the third telescopic section 41 are all provided with annular top plates 42, the cross section of each annular top plate 42 is of a trapezoid structure, arc grooves 44 are formed in the annular top plates 42, the arc grooves in the annular top plates 42 enable the cable bodies 1 to be placed, so that a plurality of cables can be placed, an auxiliary tightening net 45 is arranged between the two annular top plates 42, the auxiliary tightening net 45 can be used for placing cable bodies 1 with different tensioning, the placing efficiency of the cable bodies 1 is effectively improved, the annular top plates 42 are elastic plates, and the inside of the cable bodies is of a cavity structure.

Be equipped with docking rod 46 on the through-hole screw 14, docking rod 46 includes L shape structure and straight line structure, and L shape structure and straight line structure's setting makes can place cable body 1 towards different positions, and the inside right angle department of L shape structure appears bending for the card income buffer unit when preventing that the cable from placing.

The application method of the extrusion-resistant and cracking-resistant power cable comprises the following steps:

s11, firstly, placing a bending processing device at a corner to be turned according to the requirement of site construction, and simultaneously enabling a batch of cable bodies 1 to sequentially pass through the bending processing device;

s12, when different cable bodies 1 need to face different directions, operators can select an L-shaped structure thread bush or a straight structure thread bush according to actual needs;

s13, place the in-process, because elastic component and elastic component two 'S setting for can place the cable of batch, bend simultaneously processing apparatus and cable body 1' S placing, can prevent the damage of cable body 1 hookup location department when preventing that the department of bending from appearing damaging.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An extrusion-resistant and cracking-resistant power cable, which is characterized in that: the cable comprises a cable body and a bending treatment device matched with the cable body, wherein the cable body passes through the bending treatment device, the cable body comprises a wire core layer, a first anti-torsion layer, a second anti-torsion layer, a protective layer, an impermeable layer and an outer wrapping layer, a strip-shaped isolation pad is arranged in the wire core layer, the cross section of the strip-shaped isolation pad is of a cross-shaped structure, and the wire core layer comprises a first wire core, a second wire core, a third wire core and a fourth wire core;

the wire core I, the wire core II, the wire core III and the wire core IV are respectively positioned in grooves of a cross-shaped structure, anti-torsion parts matched with each other are arranged on the anti-torsion layer I and the anti-torsion layer II, the inside of the bending processing device is of a cavity structure, an elastic anti-bending component is arranged in the bending processing device, the bending processing device comprises a transverse plate and an inclined plate, through hole threads are arranged on the transverse plate, the elastic anti-bending component comprises a rotating shaft, two ends of the rotating shaft are movably fixed at the top and the bottom of the bending processing device, and an elastic component is arranged on the rotating shaft;

the elastic component comprises a first arc-shaped plate, a second arc-shaped plate, a third arc-shaped plate and a fourth arc-shaped plate, wherein the first arc-shaped plate, the second arc-shaped plate, the third arc-shaped plate and the fourth arc-shaped plate are respectively provided with three sections of freely telescopic sections, the first telescopic section, the second telescopic section and the third telescopic section are respectively connected through elastic components;

the telescopic section I, the telescopic section II and the telescopic section III are all provided with annular top plates, the sections of the annular top plates are of trapezoid structures, arc-shaped grooves are formed in the annular top plates, auxiliary jacking nets are arranged between the annular top plates, the annular top plates are elastic plates, and the inside of the annular top plates is of a cavity structure.

2. The extrusion-resistant and cracking-resistant power cable of claim 1, wherein: the transverse plate is provided with a transverse plate I, a transverse plate II, a transverse plate III and a transverse plate IV, the inclined plate is provided with an inclined plate I, an inclined plate II, an inclined plate III and an inclined plate IV, the transverse plate I, the transverse plate II, the transverse plate III and the transverse plate IV are arranged in a staggered mode, the inclined plate II, the inclined plate III and the inclined plate IV are enclosed with a top plate and a bottom plate to form the bending processing device, through holes are formed in the inclined plate I, the inclined plate II, the inclined plate III and the inclined plate IV, and an elastic component II matched with the elastic component is arranged on the inclined plate I, the inclined plate II, the inclined plate III and the inclined plate IV.

3. A crush-resistant and crack-resistant power cable as claimed in claim 2, wherein: the elastic component II comprises an elastic plate I and springs connected with one end of the elastic plate I, the other ends of the springs are connected to the inclined plates, the elastic plate I is of an arc-shaped structure, the two ends of the elastic plate I are respectively arranged at the end parts of through hole threads on two adjacent transverse plates, and at least 3 springs are arranged on the section of each elastic plate I.

4. A crush-resistant and crack-resistant power cable according to claim 3, characterized in that: be equipped with dustproof screen cloth between elastic component and the elastic component second, be equipped with elastomeric element on the middle part of dustproof screen cloth, dustproof screen cloth is equipped with 4 at least, elastomeric element cuts apart into first dustproof screen cloth and second dustproof screen cloth with dustproof screen cloth, be equipped with the threading through-hole on the middle part of first dustproof screen cloth and second dustproof screen cloth, and the threading through-hole all has elasticity.

5. The extrusion-resistant and cracking-resistant power cable of claim 4, wherein: an arc-shaped bulge is arranged between the outer wrapping layer and the impermeable layer, and the inside of the arc-shaped bulge is of a cavity structure; the anti-torsion part comprises a groove arranged on the first anti-torsion layer and a protrusion matched with the groove, wherein the protrusion is arranged above the second anti-torsion layer, a buffer gap is arranged between the protrusion and the side wall of the groove, the protrusion is made of a rigid material, and the threading through hole and the through hole thread are correspondingly arranged.

6. The extrusion-resistant and cracking-resistant power cable of claim 5, wherein: the through hole thread is provided with a butt joint rod, the butt joint rod comprises an L-shaped structure and a straight structure, and a right angle part inside the L-shaped structure is a clamping buffer part.

7. The method of using a crush-resistant and crack-resistant power cable of claim 6, wherein: it comprises the following steps: