CN221668550U - Compression-resistant torsion-resistant cable - Google Patents
Compression-resistant torsion-resistant cable Download PDFInfo
- Publication number
- CN221668550U CN221668550U CN202323377744.9U CN202323377744U CN221668550U CN 221668550 U CN221668550 U CN 221668550U CN 202323377744 U CN202323377744 U CN 202323377744U CN 221668550 U CN221668550 U CN 221668550U
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- Prior art keywords
- compression
- resistant
- cable
- layer
- torsion
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- 230000006835 compression Effects 0.000 title claims abstract description 61
- 238000007906 compression Methods 0.000 title claims abstract description 61
- 239000000872 buffer Substances 0.000 claims abstract description 18
- 239000003063 flame retardant Substances 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims abstract 12
- 239000010410 layer Substances 0.000 claims description 73
- 239000011241 protective layer Substances 0.000 claims description 11
- 238000005253 cladding Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims 1
- 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 abstract description 6
- 230000003014 reinforcing effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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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- Insulated Conductors (AREA)
Abstract
The utility model relates to a compression-resistant torsion-resistant cable which comprises at least two cable cores, wherein the outer sides of the cable cores are sequentially coated with a wrapping layer, a buffer layer, a flame-retardant layer, a waterproof layer and an outer sheath layer, a filling layer is filled between each cable core and the inner wall of the wrapping layer, each buffer layer comprises a matrix coated on the outer side of the wrapping layer and a plurality of compression-resistant strips uniformly distributed on the outer side of the matrix along the circumferential direction, the compression-resistant strips extend along the axial direction of the matrix, two ends of the cross sections of the compression-resistant strips are connected to the matrix, the middle parts of the cross sections of the compression-resistant strips are bent towards the direction far away from the matrix, compression-resistant cavities are formed between the middle parts of the cross sections of the compression-resistant strips and the outer walls of the matrix, and two adjacent end parts of the cross sections of the two adjacent compression-resistant strips are mutually crossed to form reinforcing parts. The utility model mainly aims to provide the compression-resistant torsion-resistant cable which can better meet the use requirements of both compression resistance and torsion resistance, thereby prolonging the service life of the cable.
Description
Technical Field
The utility model relates to a cable, in particular to a compression-resistant torsion-resistant cable.
Background
The cable is an electric energy or signal transmission device, and is usually composed of several wires or groups of wires, and the cables conventionally used at present are generally two-core cables, three-core cables and four-core cables. The three-core cable adopts the triangular arrangement, and the stability of the three-core cable is higher than that of the two-core cable and the four-core cable due to the characteristics of the triangle, so that the two-core cable and the four-core cable have lower compression resistance and torsion resistance, the service life is shortened, and the use cost is increased. Accordingly, further improvements in two-core cables and four-core cables are needed.
Disclosure of utility model
In order to overcome the defects of the prior art, the utility model aims to provide the compression-resistant torsion-resistant cable which can better meet the use requirements of both compression resistance and torsion resistance, thereby prolonging the service life of the cable.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
The utility model provides a resistance to compression antitorque cable, includes two at least cable cores, the cladding has in proper order around covering, buffer layer, fire-retardant layer, waterproof layer and oversheath layer in the cable core outside, the cable core with around packing between the covering inner wall have the filling layer, the buffer layer is including cladding in around the base member in the covering outside and along circumference evenly distributed at a plurality of resistance to compression strip in the base member outside, resistance to compression strip extends along the base member axial and sets up, the both ends on the resistance to compression strip cross section are connected on the base member, the middle part on the resistance to compression strip cross section is crooked to the direction of keeping away from the base member to enclose between with the base member outer wall and establish into the resistance to compression chamber, two adjacent tip intercrossing on two adjacent resistance to compression strip cross sections form the enhancement portion.
Further, the cross section structure of the anti-pressing strip is an arc-shaped structure or a trapezoid-shaped structure.
Further, the distance between the adjacent two ends of the cross section of the adjacent two compression-resistant strips is greater than one quarter of the distance between the two ends of the compression-resistant strips.
Further, the height of the reinforcing part is 1/3-1/2 of the height of the compression-resistant strip.
Further, the inner side of the wrapping layer is also provided with a supporting column, the outer side of the supporting column is provided with concave cambered surfaces corresponding to the cable cores one by one, the concave cambered surfaces are attached to the outer peripheral surfaces of the cable cores, and the central angle of the concave cambered surfaces is 15-30 degrees.
Further, a convex rib is arranged on the support column and positioned between two adjacent cable cores, and the convex rib protrudes out of the surface of the support column.
Further, the cable core comprises a conductive core and a protective layer coated on the outer side of the conductive core, wherein a torsion resistant layer is arranged on the outer side of the protective layer, and the torsion resistant layer is formed by a torsion resistant pipe spirally wound on the outer side of the protective layer.
Further, the torsion tube is of a hollow tubular structure.
Compared with the prior art, the utility model has the beneficial effects that: the utility model strengthens the whole compressive resistance of the four-core cable through the design of the buffer layer, and the buffer layer is integrally formed through extrusion molding, so that the processing is simple and the structural design is ingenious; and meanwhile, the torsion resistant layer with the spiral structure is arranged on the outer side of the cable core, so that the compression resistant effect of the cable can be further improved, the torsion resistant capability of the cable can be greatly enhanced, the cable core is protected from being damaged due to torsion, and the service life of the four-core cable is prolonged.
Drawings
FIG. 1 is a schematic view of a compressive torsion resistant cable according to the present utility model;
FIG. 2 is a schematic diagram of a cable core of a compressive torsion resistant cable according to the present utility model;
Wherein, 1, an outer sheath layer; 2. a waterproof layer; 3. an armor layer; 4. a flame retardant layer; 5. a buffer layer; 51. a base; 52. anti-pressing strips; 521. a reinforcing part; 6. a filling layer; 7. a cable core; 71. a torsion resistant layer; 72. an insulating layer; 73. a shielding layer; 74. a sheath layer; 75. a conductive core; 8. a support column; 9. an alloy core.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the detailed description.
In the description of the technical solution of the present utility model, some azimuth terms, such as "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", etc., are used for clearly describing the technical features of the present utility model, and are all according to the azimuth of the drawings of the present utility model.
Examples
As shown in fig. 1, the compression-resistant torsion-resistant cable of the embodiment comprises at least two cable cores 7, specifically in the embodiment, the number of the cable cores 7 is four, the four cable cores 7 are distributed in a cross structure, a wrapping layer, a buffer layer 5, a flame-retardant layer 4, a waterproof layer 2 and an outer sheath layer 1 are sequentially wrapped on the outer side of the cable core 7, a filling layer 6 is filled between the cable cores 7 and the inner wall of the wrapping layer, and the filling layer 6 adopts a waterproof filling rope. The wrapping layer adopts a composite wrapping mode of the water blocking belt and the mica tape, and the material of the water blocking belt can expand when meeting water, so that the water is prevented from further diffusing along the cable, and the waterproof effect is good.
The buffer layer 5 comprises a substrate 51 coated on the outer side of the wrapping layer and a plurality of compression-resistant strips 52 uniformly distributed on the outer side of the substrate 51 along the circumferential direction, the compression-resistant strips 52 are axially extended along the substrate 51, and the cross section structure of the compression-resistant strips 52 is of an arc-shaped structure or a trapezoid-shaped structure. In this embodiment, the cross-sectional structure of the compression-resistant strip 52 is an arc-shaped structure, the compression-resistant strip 52 and the base 51 are integrally formed, two ends of the cross-section of the compression-resistant strip 52 are connected to the base 51, the middle part of the cross-section of the compression-resistant strip 52 is bent in a direction away from the base 51, and a compression-resistant cavity is enclosed between the compression-resistant strip and the outer wall of the base 51, and when the cable is extruded, the compression-resistant cavity buffers and disperses the pressure through deformation, so that the pressure is prevented from being directly transmitted to the cable core 7; meanwhile, in order to enhance the compression-resistant effect of the buffer layer 5, in this embodiment, two adjacent ends on the cross sections of two adjacent compression-resistant strips 52 are mutually intersected to form a reinforcing part 521, and a plurality of compression-resistant strips 52 are connected to form a whole, so that the force dispersing effect can be improved, and meanwhile, the structural strength of the reinforcing part 521 is higher, and the overall impact-resistant effect of the buffer layer 5 can be improved. And, in this embodiment, the distance between the adjacent two ends of the cross section of the adjacent two compression-resisting strips 52 is greater than one fourth of the distance between the two ends of the compression-resisting strips 52; the height of the reinforcement 521 is 1/3-1/2 of the height of the compression-resistant strip 52. By adopting the structural design, the compression resistance effect of the buffer layer 5 can be greatly optimized, the pressure transmitted to the inner side of the buffer layer 5 is reduced, and the compression resistance effect is durable and stable.
The inner side of the wrapping layer is also provided with a support column 8, the outer side of the support column 8 is provided with concave cambered surfaces corresponding to the cable cores 7 one by one, the concave cambered surfaces are attached to the outer peripheral surface of the cable cores 7, and the central angle of the concave cambered surfaces is 15-30 degrees. In this embodiment, the central angle of the concave cambered surface is preferably 15 degrees. The position between two adjacent cable cores 7 on the support column 8 is provided with a convex edge, the convex edge protrudes out of the surface of the support column 8, the convex edge is supported between the two cable cores 7, and the two cable cores 7 are prevented from being mutually close to each other and extruded. The support column 8 is made of foaming materials, and deforms when the cable is extruded, so that the function of supporting the cable core 7 and buffering the pressure is achieved. The middle part of the support column 8 is provided with an alloy core 9 extending along the axial direction for improving the tensile property and the bending resistance of the cable.
The cable core 7 comprises a conductive core 75 and a protective layer coated on the outer side of the conductive core 75, wherein a torsion resistant layer 71 is arranged on the outer side of the protective layer, and the torsion resistant layer 71 is composed of a torsion resistant tube spirally wound on the outer side of the protective layer as shown in fig. 2. The torsion-resistant pipe is of a hollow tubular structure, the torsion-resistant pipe is spirally wound along the axial direction of the protective layer, and the screw pitch of the torsion-resistant pipe in the embodiment is smaller than 8mm. With this structure, not only the compression resistance of the cable core 7 can be further improved, but also the torsion resistance of the cable core 7 can be improved by utilizing the torsion resistance of the spiral structure itself, and when the cable is twisted, the torsion resistance layer 71 can maximally counteract the torsion force, thereby protecting the cable core 7. The protective layer in this embodiment includes a sheath layer 74, a shielding layer 73 and an insulating layer 72 which are sequentially coated on the outer side of the conductive core 75 from inside to outside, the sheath layer 74 adopts a halogen-free flame retardant sheath layer, the shielding layer 73 adopts a tinned copper wire shielding layer, and the insulating layer 72 adopts a flame retardant high-tearing-resistance silicon rubber insulating layer.
In addition, in the embodiment, the outer sheath layer 1 adopts a halogen-free flame retardant sheath layer, and the outer side of the outer sheath layer 1 is coated with an anti-corrosion material, the anti-corrosion material adopts polyurethane paint, and the polyurethane paint has good chemical corrosion resistance, oil resistance, wear resistance and adhesive force, so that the problem that the cable is easy to corrode and damage after long-time use is avoided. The fire-retardant layer 4 adopts high-performance fire-retardant fiber, and armor layer 3 is still equipped with between fire-retardant layer 4 and the waterproof layer 2, and armor layer 3 adopts the network structure that the copper wire woven. In this embodiment, the waterproof layer 2 is disposed outside the flame retardant layer 4, and the waterproof layer 2 generally has the water storage and blocking effects, so that the design can play a primary flame retardant effect.
According to the compression-resistant torsion-resistant cable, the whole compression-resistant capacity of the four-core cable is enhanced through the design of the buffer layer 5, and the buffer layer 5 is integrally formed through extrusion molding, so that the compression-resistant torsion-resistant cable is simple and convenient to process and ingenious in structural design; and meanwhile, the torsion resistant layer 71 with a spiral structure is arranged on the outer side of the cable core 7, so that the compression resistant effect of the cable can be further improved, the torsion resistant capability of the cable can be greatly enhanced, the cable core 7 is protected from being damaged due to torsion, and the service life of the four-core cable is prolonged.
It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the appended claims.
Claims (8)
1. The utility model provides a resistance to compression antitorque cable which characterized in that: including two at least cable cores (7), the cladding has in proper order around covering, buffer layer (5), fire-retardant layer (4), waterproof layer (2) and oversheath layer (1) in cable core (7) outside, it has filling layer (6) to fill between cable core (7) and the around covering inner wall, buffer layer (5) are including cladding in matrix (51) around the covering outside and along a plurality of compressive strip (52) of circumference evenly distributed in matrix (51) outside, compressive strip (52) follow matrix (51) axial extension setting, both ends on the compressive strip (52) cross section are connected on matrix (51), the middle part on compressive strip (52) cross section is crooked to the direction of keeping away from matrix (51) to enclose between with matrix (51) outer wall and establish into the compressive cavity, adjacent two tip intercrossing on two adjacent compressive strip (52) cross sections form enhancement portion (521).
2. A compression and torsion resistant cable according to claim 1, wherein: the cross section structure of the compression-resistant strip (52) is of an arc-shaped structure or a trapezoid-shaped structure.
3. A compression and torsion resistant cable according to claim 1, wherein: the distance between the adjacent two ends of the cross section of the adjacent two compression-resistant strips (52) is greater than one fourth of the distance between the two ends of the compression-resistant strips (52).
4. A compression and torsion resistant cable according to claim 3, wherein: the height of the reinforcement part (521) is 1/3-1/2 of the height of the compression-resistant strip (52).
5. A compression and torsion resistant cable according to claim 1 or 4, wherein: the inner side of the wrapping layer is also provided with a supporting column (8), the outer side of the supporting column (8) is provided with concave cambered surfaces corresponding to the cable cores (7) one by one, the concave cambered surfaces are attached to the outer peripheral surface of the cable cores (7), and the central angle of the concave cambered surfaces is 15-30 degrees.
6. The compression and torsion resistant cable of claim 5, wherein: and a convex rib is arranged on the support column (8) and positioned between two adjacent cable cores (7), and the convex rib protrudes out of the surface of the support column (8).
7. A compression and torsion resistant cable according to claim 1, wherein: the cable core (7) comprises a conductive core (75) and a protective layer which is coated on the outer side of the conductive core (75), wherein a torsion resistant layer (71) is arranged on the outer side of the protective layer, and the torsion resistant layer (71) is formed by spirally winding a torsion resistant pipe on the outer side of the protective layer.
8. The compression and torsion resistant cable of claim 7, wherein: the torsion-resistant pipe is of a hollow tubular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323377744.9U CN221668550U (en) | 2023-12-12 | 2023-12-12 | Compression-resistant torsion-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323377744.9U CN221668550U (en) | 2023-12-12 | 2023-12-12 | Compression-resistant torsion-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221668550U true CN221668550U (en) | 2024-09-06 |
Family
ID=92569056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323377744.9U Active CN221668550U (en) | 2023-12-12 | 2023-12-12 | Compression-resistant torsion-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221668550U (en) |
-
2023
- 2023-12-12 CN CN202323377744.9U patent/CN221668550U/en active Active
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