CN117766203B - Flexible tensile cable for electrical engineering - Google Patents
Flexible tensile cable for electrical engineering Download PDFInfo
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- CN117766203B CN117766203B CN202410042417.8A CN202410042417A CN117766203B CN 117766203 B CN117766203 B CN 117766203B CN 202410042417 A CN202410042417 A CN 202410042417A CN 117766203 B CN117766203 B CN 117766203B
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- 238000004870 electrical engineering Methods 0.000 title claims abstract description 14
- 230000008093 supporting effect Effects 0.000 claims abstract description 63
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 239000004020 conductor Substances 0.000 claims abstract description 9
- 239000003063 flame retardant Substances 0.000 claims description 34
- 229920000742 Cotton Polymers 0.000 claims description 33
- 241000219146 Gossypium Species 0.000 claims description 33
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 29
- 230000003014 reinforcing effect Effects 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 19
- 238000005260 corrosion Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 15
- 238000004321 preservation Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 239000011490 mineral wool Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a flexible tensile type cable for electrical engineering, which relates to the technical field of cables and comprises a conductor, wherein a shielding layer is fixedly sleeved on the outer side of the conductor, an insulating bush is sleeved on the outer side of the shielding layer, a supporting and rebound mechanism is arranged on the outer side of the insulating bush, a fixing ring is fixedly clamped on the outer side of the insulating bush at equal intervals, an elastic tube is clamped on the outer side of the fixing ring, and a splicing ring is fixedly sleeved on the outer side of the elastic tube.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a flexible tensile type cable for electrical engineering.
Background
Electric power engineering, i.e. engineering related to the production, transportation and distribution of electric energy, broadly includes engineering that uses electricity as power and energy in various fields, and as a form of energy, electric energy has many advantages of easy conversion, convenient transportation, easy control, convenient use, cleanliness and economy;
However, when the existing cable is stretched and bent, the cable is affected by flexibility, so that the stretching and bending are inconvenient, and because the tensile effect of the cable is poor, the cable is easy to break when pulled, and the service life of the cable is affected, so that in order to avoid the technical problems, it is necessary to provide a flexible tensile type cable for electrical engineering to overcome the defects in the prior art.
Disclosure of Invention
The invention provides a flexible tensile type cable for electric engineering, which can effectively solve the problems that the cable is influenced by flexibility, is inconvenient to stretch and bend, and is easy to break when being pulled because the tensile effect of the cable is poor, and the service life of the cable is influenced.
In order to achieve the above purpose, the present invention provides the following technical solutions: the flexible tensile type cable for electrical engineering comprises a conductor, wherein a shielding layer is fixedly sleeved on the outer side of the conductor, an insulating bush is sleeved on the outer side of the shielding layer, a supporting and rebound mechanism is arranged on the outer side of the insulating bush, and the supporting and rebound mechanism comprises a fixing ring;
the outer side of the insulating bush is fixedly sleeved with a splicing ring, and the outer side of the insulating bush is sleeved with a flame-retardant sleeve;
clamping grooves are formed in the inner wall of the flame-retardant sleeve at equal intervals at positions corresponding to the outer sides of the splicing rings, a lantern ring is clamped at the positions, corresponding to one sides of the clamping grooves, of the inner wall of the flame-retardant sleeve, and an arc-shaped supporting plate is clamped at the bottom end of the lantern ring at equal intervals;
the outer sides of the flame-retardant sleeves are fixedly connected with rubber tubes at equal intervals, the outer sides of the rubber tubes are fixedly connected with inner jackets, and fireproof rock wool is filled between the inner jackets and the two corresponding adjacent rubber tubes;
The flexible stretch-proofing mechanism is arranged on the outer side of the inner sheath, and the reinforced fracture-preventing mechanism is arranged on the outer side of the flexible stretch-proofing mechanism and used for improving the stretch-proofing effect of the cable and the strength of the cable, preventing fracture and prolonging the service life of the cable.
According to the technical scheme, the opening position of the clamping groove corresponds to the installation position of the splicing ring, the outer side of the splicing ring is embedded into the clamping groove, and the outer diameter of the elastic tube is larger than the thickness of the fixing ring.
According to the technical scheme, the arc-shaped supporting plates are correspondingly arranged between the two adjacent fixing rings, and two ends of the arc-shaped supporting plates are respectively attached to the inner walls of the two fixing rings;
the inner wall of the arc supporting plate is attached to the outer side of the insulating bush.
According to the technical scheme, the flexible stretch-proofing mechanism comprises an outer sheath;
The outer side of the inner sheath is sleeved with an outer sheath, the outer side of the inner sheath and the inner wall of the outer sheath are sleeved with heat-insulating cotton, arc-shaped grooves are formed in the outer side of one heat-insulating cotton and the inner wall of the other heat-insulating cotton at equal intervals, and the outer side of one heat-insulating cotton is connected with an outer corrugated pipe through the arc-shaped grooves in a clamping mode;
The other heat-insulating cotton inner wall is clamped with an inner bellows through an arc-shaped groove, the outer side of the outer bellows and the inner bellows inner wall are uniformly clamped with supporting blocks, the positions of the outer side of the outer bellows and the inner bellows inner wall corresponding to the two sides of the supporting blocks are symmetrically clamped with elastic arc plates, one ends of the two elastic arc plates positioned on the same side are uniformly clamped with baffle plates, and the inner wall of each baffle plate is provided with positioning holes at equal intervals;
the outside of the outer corrugated pipe and the inside of the inner corrugated pipe are respectively clamped with a plug rod at the position corresponding to the inner side of the positioning hole.
According to the technical scheme, the two heat preservation cottons are provided with the corresponding arc grooves, the outer sides of the outer corrugated pipes are connected with the inner walls of the inner corrugated pipes, and the radians of the outer corrugated pipes are equal to the radians of the inner corrugated pipes.
According to the technical scheme, the supporting blocks on the outer corrugated pipe and the supporting blocks on the inner corrugated pipe are distributed in a staggered mode, and a gap is reserved between two adjacent supporting blocks.
According to the technical scheme, one end of the baffle is attached to one end of the supporting block, and one end of the inserted link is embedded into the positioning hole.
According to the technical scheme, the reinforced fracture prevention mechanism comprises a reinforced ring;
The outer side of the outer sheath is fixedly sleeved with reinforcing rings at equal intervals, each two adjacent reinforcing rings are fixedly clamped with connecting ropes at equal intervals, the outer side of each reinforcing ring is fixedly sleeved with an anti-corrosion sleeve, and the inner wall of each anti-corrosion sleeve is correspondingly clamped with a filling material between the two adjacent reinforcing rings;
The anti-corrosion sleeve is sleeved with an armor sleeve, the outer side of the armor sleeve is fixedly sleeved with a wear-resistant sleeve, the position between the wear-resistant sleeve and the anti-corrosion sleeve, corresponding to the outer side of the armor sleeve, is filled with heat insulation cotton, and the outer side of the wear-resistant sleeve is fixedly sleeved with reinforcing ribs at equal intervals.
According to the technical scheme, the connecting rope is an elastic rope, the filling material is fireproof waste, and the inner wall of the filling material is attached to the outer side of the connecting rope.
According to the technical scheme, the inner wall of the heat insulation cotton on the wear-resistant sleeve is attached to the outer side of the corresponding armor sleeve on the outer side of the heat insulation cotton on the anti-corrosion sleeve, and bending grooves are formed in the outer side of the reinforcing rib at equal intervals.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:
1. The supporting and rebounding mechanism is arranged, the outer corrugated pipe and the inner corrugated pipe are convenient to contract through the elasticity of the rubber pipe, the flexibility of the cable is increased, meanwhile, when the rubber pipe is not extruded, the inner sheath is quickly rebounded, the too large gap between the inner sheath and the flame-retardant sleeve is prevented, the phenomenon of sinking occurs, the compactness of the inside of the cable is ensured, the packing of fireproof rock wool is utilized, the compactness between the inner sheath and the flame-retardant sleeve is further improved, the flame-retardant effect of the cable is also increased, the flame spreading speed is reduced when fire occurs, and the time is provided for rescuing;
In addition, through draw-in groove, splice ring, elastic tube and solid fixed ring's cooperation, carry out spacingly to fire-retardant cover, at fire-retardant cover tensile in-process, guaranteed the stability of being connected between fire-retardant cover and the insulating bush, guaranteed the effect of supporting, in addition through elastic tube's elasticity, promote splice ring and open, shrink, remain throughout to fire-retardant cover supporting effect, guaranteed the pliability of cable, conveniently stretch and buckle the cable, promote fire-retardant cover rebound and reset simultaneously, prevent that the cable from appearing sunken phenomenon because of stretching, buckling.
2. The flexible stretching-resistant mechanism is arranged, the shielding layer is matched with the insulating bush, so that the phenomenon of electric leakage is prevented, the electric power transmission effect is ensured, the cable has certain flexibility and extensibility due to the shrinkage of the outer corrugated pipe and the inner corrugated pipe, meanwhile, the force generated by stretching is uniformly dispersed on the outer corrugated pipe and the inner corrugated pipe, the stretching force is prevented from being concentrated at one position, and the stretching-resistant effect of the cable is enhanced;
In addition, in the process of outer bellows and interior bellows shrink, the baffle is being pushed through the elasticity arc board and is removed, the laminating of baffle and supporting shoe has been guaranteed, thereby spacing to the supporting shoe, dislocation appears in supporting shoe on preventing outer bellows and the supporting shoe on the interior bellows, and then when outer bellows and interior bellows shrink stretch, the distance between two adjacent supporting shoes has been shortened, make every adjacent two closely laminating of supporting shoe be in the same place, further support outer bellows and interior bellows, the intensity of outer bellows and interior bellows after stretching has been improved.
3. The cable is further reinforced through the cooperation of the reinforcing ring, the connecting rope and the reinforcing ribs, the cable is prevented from being broken when being stretched and bent, the anti-corrosion sleeve is filled with the filling material, the stability and the compactness of the anti-corrosion sleeve are improved, the supporting effect on the armor sleeve and the wear-resistant sleeve is improved, the protection performance on the cable is enhanced, the wear resistance and the anti-corrosion effect of the cable are improved through the cooperation of the wear-resistant sleeve and the anti-corrosion sleeve, the service life of the cable is prolonged, the anti-wear sleeve and the anti-corrosion sleeve are filled with heat insulation cotton, the position of the armor sleeve is fixed, the influence of external temperature on the inside of the cable is reduced, and the cable is convenient to use in severe cold areas.
Synthesize the cooperation through supporting and resilience mechanism and flexible stretch-proofing mechanism, improved, strengthened the stretch-proofing effect of cable, make the cable when being pulled, can disperse the pulling force, improved the pliability of cable simultaneously, after tensile and buckling, can make the cable kick-back fast, shrink reset, prevent that the sunken phenomenon from appearing in cable, prevent in addition that fracture mechanism is in tensile, buckling through strengthening, improved the intensity of cable, prevent to appear cracked phenomenon, improved the life of cable.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the support and rebound mechanism of the present invention;
FIG. 3 is a schematic view of the mounting structure of the inner bellows of the present invention;
FIG. 4 is a schematic view of the flexible stretch resistant mechanism of the present invention;
FIG. 5 is a schematic view of the mounting structure of the baffle plate of the present invention;
FIG. 6 is a schematic view of the installation structure of the heat insulation cotton of the present invention;
FIG. 7 is a schematic view of the structure of the reinforced fracture prevention mechanism of the present invention;
FIG. 8 is a schematic cross-sectional view of the present invention;
reference numerals in the drawings: 1. a conductor; 2. a shielding layer; 3. an insulating bush;
4. A support and rebound mechanism; 401. a fixing ring; 402. an elastic tube; 403. a splice ring; 404. a flame retardant sleeve; 405. a clamping groove; 406. a collar; 407. arc supporting plates; 408. a rubber tube; 409. an inner sheath; 410. fireproof rock wool;
5. A flexible stretch resistant mechanism; 501. an outer sheath; 502. thermal insulation cotton; 503. an arc-shaped groove; 504. an outer bellows; 505. an inner bellows; 506. a support block; 507. an elastic arc plate; 508. a baffle; 509. positioning holes; 510. a rod;
6. Reinforcing the fracture prevention mechanism; 601. a reinforcing ring; 602. a connecting rope; 603. an anti-corrosion sleeve; 604. a filler; 605. an armor sleeve; 606. a wear-resistant sleeve; 607. thermal insulation cotton; 608. reinforcing ribs.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples: as shown in fig. 1-8, the invention provides a technical scheme, which comprises a conductor 1, wherein a shielding layer 2 is fixedly sleeved on the outer side of the conductor 1, an insulating bush 3 is sleeved on the outer side of the shielding layer 2, a supporting and rebound mechanism 4 is arranged on the outer side of the insulating bush 3, and the supporting and rebound mechanism 4 comprises a fixed ring 401, an elastic tube 402, a splicing ring 403, a flame-retardant sleeve 404, a clamping groove 405, a collar 406, an arc-shaped supporting plate 407, a rubber tube 408, an inner jacket 409 and fireproof rock wool 410;
The insulation sleeve 3 is provided with a fixing ring 401 in an equidistant clamping way, the outer side of the fixing ring 401 is provided with an elastic tube 402 in a clamping way, the outer side of the elastic tube 402 is fixedly sleeved with a splicing ring 403, the outer side of the insulation sleeve 3 is sleeved with a flame-retardant sleeve 404, the inner wall of the flame-retardant sleeve 404 is provided with clamping grooves 405 in an equidistant way corresponding to the outer side position of the splicing ring 403, in order to prevent dislocation between the insulation sleeve 3 and the flame-retardant sleeve 404 conveniently, the clamping grooves 405 are arranged in the clamping grooves 405 in an opening way corresponding to the installation position of the splicing ring 403, the outer diameter of the elastic tube 402 is larger than the thickness of the fixing ring 401, the inner wall of the flame-retardant sleeve 404 is provided with a lantern ring 406 in a clamping way corresponding to the position of one side of the clamping groove 405, the bottom end of the lantern ring 406 is provided with an arc-shaped supporting plate 407 in an equidistant clamping way, in order to support the flame-retardant sleeve 404, the two ends of the arc-shaped supporting plate 407 are respectively attached to the inner walls of the two fixing rings 401, the inner wall of the arc-shaped supporting plate 407 is attached to the outer side of the insulation sleeve 3, the outer side of the flame-retardant sleeve 404 is fixedly connected with a rubber tube 408 in an equidistant way, the outer side of the rubber tube 409 is fixedly connected with an inner protection sleeve 409, and the inner protection 409 is fixedly connected to the inner protection sleeve 409 in the side of the flame-retardant sleeve 408 in an equidistant way, and the position of the inner protection sleeve 408 is filled between the two rock-shaped sealing sleeve 408 is respectively corresponding to the adjacent rock-shaped sealing rubber tube 408;
The flexible stretching-resistant mechanism 5 is arranged outside the inner jacket 409, and the flexible stretching-resistant mechanism 5 comprises an outer jacket 501, heat insulation cotton 502, an arc groove 503, an outer corrugated pipe 504, an inner corrugated pipe 505, a supporting block 506, an elastic arc plate 507, a baffle 508, a positioning hole 509 and an inserted rod 510;
The outer side of the inner jacket 409 is sleeved with the outer jacket 501, the outer side of the inner jacket 409 and the inner wall of the outer jacket 501 are sleeved with heat preservation cottons 502, the outer side of one heat preservation cottons 502 and the inner wall of the other heat preservation cottons 502 are equally spaced with arc grooves 503, the outer side of one heat preservation cottons 502 is clamped with an outer corrugated pipe 504 through the arc grooves 503, the inner wall of the other heat preservation cottons 502 is clamped with an inner corrugated pipe 505 through the arc grooves 503, in order to align the outer corrugated pipe 504 with the inner corrugated pipe 505, the arc grooves 503 are arranged between the heat preservation cottons 502, the outer side of the outer corrugated pipe 504 is connected with the inner wall of the inner corrugated pipe 505, the radians of the outer corrugated pipe 504 and the inner corrugated pipe 505 are equal, the outer side of the outer corrugated pipe 504 and the inner wall of the inner corrugated pipe 505 are equally clamped with supporting blocks 506, in order to prevent the supporting blocks 506 from dislocation, the supporting blocks 506 on the outer corrugated pipe 504 and the supporting blocks 506 on the inner corrugated pipe 505 are distributed in a staggered manner, a gap is reserved between the two adjacent supporting blocks 506, the elastic arc plates 507 are symmetrically clamped at the positions of the outer side of the outer corrugated pipe 504 and the inner wall of the inner corrugated pipe 505 corresponding to the two sides of the supporting blocks 506, the baffle plates 508 are clamped at the positions of one ends of the two elastic arc plates 507 positioned on the same side corresponding to the supporting blocks 506, positioning holes 509 are formed in the inner wall of the baffle plates 508 at equal intervals, inserting rods 510 are clamped at the positions of the outer side of the outer corrugated pipe 504 and the inner wall of the inner corrugated pipe 505 corresponding to the inner side of the positioning holes 509, one end of each baffle plate 508 is attached to one end of each supporting block 506, and one end of each inserting rod 510 is embedded into the positioning holes 509;
The outer side of the outer sheath 501 is provided with a reinforced fracture prevention mechanism 6, and the reinforced fracture prevention mechanism 6 comprises a reinforcing ring 601, a connecting rope 602, an anti-corrosion sleeve 603, a filling material 604, an armor sleeve 605, a wear-resistant sleeve 606, thermal insulation cotton 607 and a reinforcing rib 608;
The outer sheath 501 outside equidistance is fixed to be cup jointed reinforcing ring 601, equal equidistant joint has between every adjacent two reinforcing rings 601 to connect rope 602, the fixed cover 603 that has cup jointed in reinforcing ring 601 outside, the joint has filler 604 between two adjacent reinforcing rings 601 that the inner wall corresponds of cover 603, in order to prevent that cover 603 from collapsing phenomenon from appearing, connecting rope 602 is the elastic cord, filler 604 is fire prevention waste material, and filler 604 inner wall is laminated with the connecting rope 602 outside, cover 605 has been cup jointed in the cover 603 outside, cover 605 outside is fixed to be cup jointed wear-resisting cover 606, cover 606 and cover 603 between correspond cover 605 outside position department and fill insulating cotton 607, cover 606 outside equidistance is fixed to be cup jointed the strengthening rib 608, in order to improve the insulating effect of cable, insulating cotton 607 inner wall on cover 606 and cover 603 correspond cover 605 outside and laminate mutually, the bending groove has been offered to the cover 605 outside equidistance with the strengthening rib 608.
The working principle and the using flow of the invention are as follows: firstly, in the use process, through the matching of the shielding layer 2 and the insulating bush 3, the phenomenon of electric leakage is prevented, the transmission of electric power is ensured, when a cable is pulled, the inner sheath 409 and the outer sheath 501 shrink and stretch, the outer corrugated pipe 504 and the inner corrugated pipe 505 are extruded, and the outer corrugated pipe 504 and the inner corrugated pipe 505 shrink and stretch, so that when the cable is stretched, the cable has certain flexibility and extensibility, and meanwhile, the force generated by stretching is uniformly dispersed on the outer corrugated pipe 504 and the inner corrugated pipe 505, the stretching force is prevented from being concentrated at one place, and the stretching resistance effect of the cable is enhanced;
In addition, in the process of shrinking and stretching the outer corrugated pipe 504 and the inner corrugated pipe 505, the elastic arc plates 507 are pushed together, so that the elastic arc plates 507 push the baffle plates 508 to move, the lamination of the baffle plates 508 and the supporting blocks 506 is kept, the positions of the supporting blocks 506 are limited, dislocation of the supporting blocks 506 on the outer corrugated pipe 504 and the supporting blocks 506 on the inner corrugated pipe 505 is prevented, when the outer corrugated pipe 504 and the inner corrugated pipe 505 shrink and stretch, the distance between two adjacent supporting blocks 506 is shortened, every two adjacent supporting blocks 506 are tightly laminated together, and therefore the outer corrugated pipe 504 and the inner corrugated pipe 505 are supported, and the strength of the outer corrugated pipe 504 and the inner corrugated pipe 505 after stretching is improved;
then, the rubber tube 408 is extruded through the outer corrugated tube 504 and the inner corrugated tube 505, so that the outer corrugated tube 504 and the inner corrugated tube 505 are convenient to contract, the flexibility of the cable is guaranteed, when the rubber tube 408 is not extruded, the inner jacket 409 is quickly rebounded, the phenomenon that the gap between the inner jacket 409 and the flame retardant sleeve 404 is too large is prevented, the phenomenon of sinking occurs, the tightness of the interior of the cable is guaranteed, meanwhile, the tightness between the inner jacket 409 and the flame retardant sleeve 404 is further improved through the filling of the fireproof rock wool 410, the flame retardant effect of the cable is also improved, the flame spreading speed is reduced, and the time is provided for rescuing when fire occurs;
In addition, when the cable is stretched and bent, the flame-retardant sleeve 404 pushes the inner sleeve ring 406 and the arc supporting plate 407 to open, so as to support the fixed ring 401, facilitate the extension and retraction of the insulating sleeve 3, improve flexibility, facilitate the stretching and bending of the cable, limit the flame-retardant sleeve 404 through the cooperation of the clamping groove 405, the splicing ring 403, the elastic tube 402 and the fixed ring 401, ensure the stability of connection between the flame-retardant sleeve 404 and the insulating sleeve 3, and maintain the supporting effect on the flame-retardant sleeve 404 because of the elasticity of the elastic tube 402, and push the flame-retardant sleeve 404 to rebound and reset through the elasticity of the arc supporting plate 407 and the elastic tube 402 when the cable is stopped to pull, so as to prevent the phenomenon of sagging of the cable caused by stretching and bending;
Finally, through the cooperation of strengthening ring 601 and connecting rope 602, further strengthen the cable, when guaranteeing cable pliability, prevent to appear cracked phenomenon, and utilize packing 604 to pack to anticorrosive cover 603, the stability of anticorrosive cover 603 has been increased, the supporting effect to armor 605 and wear-resisting cover 606 has been improved, the protection effect to the cable has been strengthened, make wear-resisting cover 606 and anticorrosive cover 603 cooperate, the wear-resisting anticorrosive effect of cable has been increased, the life-span of use has been improved, in addition, utilize insulating cotton 607 to pack between wear-resisting cover 606 and the anticorrosive cover 603, armor 605 position has been fixed, reduce the influence of external temperature to the cable is inside, make things convenient for the cable to use in the region of severe cold.
Finally, it should be noted that: the foregoing is merely a preferred example 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 (8)
1. A flexible tensile electrical engineering cable comprising a conductor (1), characterized in that: the shielding layer (2) is fixedly sleeved on the outer side of the conductor (1), the insulating bush (3) is sleeved on the outer side of the shielding layer (2), the supporting and rebound mechanism (4) is arranged on the outer side of the insulating bush (3), and the supporting and rebound mechanism (4) comprises a fixed ring (401);
the insulation bushing is characterized in that a fixing ring (401) is fixedly clamped at the outer side of the insulation bushing (3), an elastic tube (402) is clamped at the outer side of the fixing ring (401), a splicing ring (403) is fixedly sleeved at the outer side of the elastic tube (402), and a flame-retardant sleeve (404) is sleeved at the outer side of the insulation bushing (3);
Clamping grooves (405) are formed in the inner wall of the flame-retardant sleeve (404) at equal intervals at positions corresponding to the outer sides of the splicing rings (403), a lantern ring (406) is clamped at the positions, corresponding to the clamping grooves (405), of the inner wall of the flame-retardant sleeve (404), and an arc-shaped supporting plate (407) is clamped at the bottom end of the lantern ring (406) at equal intervals;
the outer side of the flame-retardant sleeve (404) is fixedly connected with rubber tubes (408) at equal intervals, the outer side of the rubber tubes (408) is fixedly connected with an inner jacket (409), and fireproof rock wool (410) is filled between the inner jacket (409) and the flame-retardant sleeve (404) corresponding to two adjacent rubber tubes (408);
The flexible anti-stretching mechanism (5) is arranged at the outer side of the inner jacket (409), and the reinforced anti-breaking mechanism (6) is arranged at the outer side of the flexible anti-stretching mechanism (5) and used for improving the anti-stretching effect and the cable lifting strength of the cable, preventing breakage and prolonging the service life of the cable;
the flexible stretch-proofing mechanism (5) comprises an outer sheath (501);
An outer sheath (501) is sleeved on the outer side of the inner sheath (409), heat-insulating cottons (502) are sleeved on the outer side of the inner sheath (409) and the inner wall of the outer sheath (501), arc-shaped grooves (503) are formed in the outer side of one heat-insulating cottons (502) and the inner wall of the other heat-insulating cottons (502) at equal intervals, and an outer corrugated pipe (504) is clamped on the outer side of one heat-insulating cottons (502) through the arc-shaped grooves (503);
The other heat preservation cotton (502) inner wall has interior bellows (505) through arc wall (503) joint, outside bellows (504) and interior bellows (505) inner wall equal equidistance joint have supporting shoe (506), outside bellows (504) and interior bellows (505) inner wall correspond supporting shoe (506) both sides position department symmetry joint have elasticity arc board (507), and are located two elasticity arc board (507) one end of same side and correspond supporting shoe (506) one side position department all joint have baffle (508), locating hole (509) have been seted up to baffle (508) inner wall equidistance;
The outside of the outer corrugated pipe (504) and the inside of the inner corrugated pipe (505) corresponding to the positioning holes (509) are respectively clamped with an inserting rod (510);
The reinforced fracture prevention mechanism (6) comprises a reinforced ring (601);
Reinforcing rings (601) are fixedly sleeved on the outer side of the outer sheath (501) at equal intervals, connecting ropes (602) are fixedly sleeved on the outer side of each two adjacent reinforcing rings (601) at equal intervals, anti-corrosion sleeves (603) are fixedly sleeved on the outer sides of the reinforcing rings (601), and filling materials (604) are clamped between the inner walls of the anti-corrosion sleeves (603) corresponding to the two adjacent reinforcing rings (601);
The anti-corrosion sleeve (603) is sleeved with an armor sleeve (605), the outer side of the armor sleeve (605) is fixedly sleeved with a wear-resistant sleeve (606), a position between the wear-resistant sleeve (606) and the anti-corrosion sleeve (603) corresponding to the outer side of the armor sleeve (605) is filled with heat insulation cotton (607), and the outer side of the wear-resistant sleeve (606) is fixedly sleeved with reinforcing ribs (608) at equal intervals.
2. A flexible tensile electrical engineering cable according to claim 1, wherein: the clamping groove (405) is formed at a position corresponding to the installation position of the splicing ring (403), the splicing ring (403) is embedded into the clamping groove (405), and the outer diameter of the elastic tube (402) is larger than the thickness of the fixing ring (401).
3. A flexible tensile electrical engineering cable according to claim 1, wherein: the arc-shaped supporting plates (407) are correspondingly arranged between two adjacent fixed rings (401), and two ends of each arc-shaped supporting plate (407) are respectively attached to the inner walls of the two fixed rings (401);
the inner wall of the arc supporting plate (407) is attached to the outer side of the insulating bush (3).
4. A flexible tensile electrical engineering cable according to claim 1, wherein: an arc groove (503) is formed between the two heat preservation cottons (502) correspondingly, the outer side of the outer corrugated pipe (504) is connected with the inner wall of the inner corrugated pipe (505), and the radians of the outer corrugated pipe (504) and the radian of the inner corrugated pipe (505) are equal.
5. A flexible tensile electrical engineering cable according to claim 1, wherein: the supporting blocks (506) on the outer corrugated pipe (504) and the supporting blocks (506) on the inner corrugated pipe (505) are distributed in a staggered mode, and gaps are reserved between two adjacent supporting blocks (506).
6. A flexible tensile electrical engineering cable according to claim 1, wherein: one end of the baffle (508) is attached to one end of the supporting block (506), and one end of the inserted rod (510) is embedded into the positioning hole (509).
7. A flexible tensile electrical engineering cable according to claim 1, wherein: the connecting rope (602) is an elastic rope, the filling material (604) is fireproof waste, and the inner wall of the filling material (604) is attached to the outer side of the connecting rope (602).
8. A flexible tensile electrical engineering cable according to claim 1, wherein: the inner wall of the heat insulation cotton (607) on the wear-resistant sleeve (606) is attached to the outer side of the corresponding armor sleeve (605) on the outer side of the heat insulation cotton (607) on the anti-corrosion sleeve (603), and bending grooves are formed in equal distance with the outer side of the reinforcing rib (608).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410042417.8A CN117766203B (en) | 2024-01-11 | 2024-01-11 | Flexible tensile cable for electrical engineering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410042417.8A CN117766203B (en) | 2024-01-11 | 2024-01-11 | Flexible tensile cable for electrical engineering |
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| Publication Number | Publication Date |
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| CN117766203A CN117766203A (en) | 2024-03-26 |
| CN117766203B true CN117766203B (en) | 2024-06-25 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116230304A (en) * | 2023-04-25 | 2023-06-06 | 通利达线缆集团有限公司 | High-temperature-resistant aluminum alloy high-voltage cable |
| CN117059316A (en) * | 2023-09-04 | 2023-11-14 | 顺心线缆有限公司 | 15kV protection type medium-voltage flame-retardant cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215007651U (en) * | 2021-06-07 | 2021-12-03 | 江苏恒辉电气有限公司 | Mineral-filled flame-retardant fireproof isolated special cable for modern buildings |
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- 2024-01-11 CN CN202410042417.8A patent/CN117766203B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116230304A (en) * | 2023-04-25 | 2023-06-06 | 通利达线缆集团有限公司 | High-temperature-resistant aluminum alloy high-voltage cable |
| CN117059316A (en) * | 2023-09-04 | 2023-11-14 | 顺心线缆有限公司 | 15kV protection type medium-voltage flame-retardant cable |
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| CN117766203A (en) | 2024-03-26 |
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