CN114464353A - Bending-resistant flame-retardant cable - Google Patents
Bending-resistant flame-retardant cable Download PDFInfo
- Publication number
- CN114464353A CN114464353A CN202111655859.2A CN202111655859A CN114464353A CN 114464353 A CN114464353 A CN 114464353A CN 202111655859 A CN202111655859 A CN 202111655859A CN 114464353 A CN114464353 A CN 114464353A
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- China
- Prior art keywords
- layer
- resistant
- bending
- cable
- retardant
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/228—Metal braid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- Details Of Indoor Wiring (AREA)
Abstract
The invention relates to the field of electric power, and discloses a bending-resistant flame-retardant cable which comprises a cable core group, wherein a wear-resistant layer wraps the outside of the cable core group, a bending-resistant layer wraps the outside of the wear-resistant layer, a flame-retardant layer wraps the outside of the bending-resistant layer, a woven layer wraps the outer wall of the flame-retardant layer, a heat-insulating layer wraps the outside of the woven layer, an outer protective sleeve wraps the outside of the heat-insulating layer, the cable can provide a bending space through the bending-resistant layer and can also prevent excessive bending, a copper spring and a corrugated pipe in the center of the cable can also deform during bending, the bending resistance of the cable is improved through the toughness of the copper spring and the space provided by the protrusion of the corrugated pipe, and the flame-retardant layer wraps the cable, so that the heat-resistant property of the cable can be effectively improved.
Description
Technical Field
The invention relates to the field of electric power, in particular to a bending-resistant flame-retardant cable.
Background
The cable is a general name of optical cable, electric cable and other articles, the purpose of the cable has many uses, mainly used for controlling the installation, connecting equipment, transmitting power and other multiple functions, it is a common and indispensable thing in daily life, the cable is manufactured for meeting the performance standard of optics, electricity, machinery or environment, it uses one or more electric conductors in the coating sheath as transmission medium and can use the assembly alone or in groups, the optical cable mainly comprises optical fiber, plastic protective sleeve and plastic outer skin, the optical cable has no metals such as gold, silver, copper and aluminum, it has no recycling value, the optical cable is a cable core composed of a certain number of optical fibers according to a certain mode, the outer sheath is covered outside, some also covers the outer sheath, a communication line for realizing optical signal transmission, the traditional cable generally has the structure that the inner part is covered with outer shield and the outer core is protected by PVC material, the heart yearn is as inside signal transmission, and the outer shield is as EMI protection and ground connection use, because the outer shield all has tiny single copper wire to constitute, is externally not supported the protection, and the cable receives external pressure's extrusion or bending easily in special wiring application, causes inside heart yearn to flatten or destroy and influence the transmission and use, makes the wiring product defective rate higher, does not have better protecting effect, does not have better resistant bending nature, and is not practical enough, for this we have proposed a resistant fire-retardant cable of buckling.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a bending-resistant flame-retardant cable, which solves the problems.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a fire-retardant cable of nai buckling, includes cable core group, the outside parcel of cable core group has the wearing layer, the outside parcel of wearing layer has resistant curved layer, the outside parcel on resistant curved layer has fire-retardant layer, the outer wall parcel on fire-retardant layer has the weaving layer, the outside parcel of weaving layer has the insulating layer, the outside parcel of insulating layer has outer protecting cover.
Preferably, the cable core group includes cable core, insulating cover, bellows, copper spring, cotton, the interior guarantor layer of line, copper spring is located the center department of cable, and copper spring's outside parcel has the bellows, a week of bellows is provided with the insulating cover of equidistance multiunit, the inside parcel of insulating cover has the cable core.
Preferably, the inner protection layer wraps the outer parts of the insulation sleeve and the corrugated pipe, gaps exist among the insulation sleeve, the corrugated pipe and the inner protection layer, and the gaps are filled with wire cotton.
Preferably, the outer wall of the corrugated pipe is provided with convex parts at equal intervals in the transverse direction.
Preferably, resistant curved layer includes stretch-proofing rubber sleeve and bending-resistant board, the inner wall a week equidistance fixed mounting of stretch-proofing rubber sleeve has the bending-resistant board, and the bottom outer wall of bending-resistant board in the outer wall contact of wearing layer, on the inner wall of the stretch-proofing rubber sleeve of installation of bending-resistant board also horizontal equidistance.
Preferably, a plurality of groups of raised rubber soft bodies are arranged on the outer wall of the wear-resistant layer.
Preferably, the braided layer is formed by regularly twisting and braiding a plurality of groups of steel wires.
Compared with the prior art, the invention provides a bending-resistant flame-retardant cable which has the following beneficial effects:
1. this resistant fire-retardant cable of buckling, the outside parcel of wearing layer has resistant curved layer, resistant curved layer includes stretch-proofing rubber sleeve and bending-resistant board, the inner wall a week equidistance fixed mounting of stretch-proofing rubber sleeve has bending-resistant board, and bending-resistant board's bottom outer wall in the outer wall contact of wearing layer, bending-resistant board is also on the inner wall of the stretch-proofing rubber sleeve of installation of horizontal equidistance, there is the space through resisting between the bending-resistant board in the curved layer, can provide the space when buckling for the cable, and buckle to the multiunit and hinder mutual collision between the bending-resistant board, hinder the cable to continue to buckle simultaneously, prevent that the staff from excessively buckling the cable.
2. This resistant fire-retardant cable of buckling, the outside parcel of cable core group has the wearing layer, is provided with the bellied rubber software of multiunit on the outer wall of wearing layer, hinders the bent plate and can push to the center along with buckling, can effectively cushion through the rubber software on wearing layer surface and hinder the extrusion force of bent plate to cable core group, prevents that the cable core in the cable core group is impaired.
3. This resistant fire-retardant cable of buckling, the cable core group includes the cable core, insulating cover, bellows, copper spring, line cotton, interior guarantor layer, and copper spring is located the center department of cable, and copper spring's outside parcel has the bellows, and the copper spring and the bellows of cable center department also can take place deformation when buckling, and the space that provides has increased the bending resistance of cable when copper spring through self toughness and bellows arch.
4. This resistant fire-retardant cable of buckling has fire-retardant layer through the parcel, and the insulating layer can effectual increase fire resistance.
Drawings
FIG. 1 is a schematic cross-sectional view of the structure of the present invention.
In the figure: 1. a cable core wire set; 2. a core; 3. an insulating sleeve; 4. a bellows; 5. a copper spring; 6. thread cotton; 7. an inner protective layer; 8. a bend-resistant layer; 9. a stretch-resistant rubber sleeve; 10. a bending resistance plate; 11. a flame retardant layer; 12. a thermal insulation layer; 13. a steel wire; 14. weaving layer; 15. an outer protective sleeve; 16. and a wear-resistant layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a bending-resistant flame-retardant cable comprises a cable core group 1, a wear-resistant layer 16 wraps the outside of the cable core group 1, a bending-resistant layer 8 wraps the outside of the wear-resistant layer 16, a flame-retardant layer 11 wraps the outside of the bending-resistant layer 8, a woven layer 14 wraps the outer wall of the flame-retardant layer 11, a heat-insulating layer 12 wraps the outside of the woven layer 14, an outer protective sleeve 15 wraps the outside of the heat-insulating layer 12, the flame-retardant layer 11 wraps the cable, and the heat-insulating layer 12 can effectively increase fire resistance.
Further, the cable core wire set 1 comprises a cable core 2, an insulating sleeve 3, a corrugated pipe 4, a copper spring 5, wire cotton 6 and an inner protective layer 7, wherein the copper spring 5 is located at the center of the cable, the corrugated pipe 4 wraps the copper spring 5, a plurality of groups of equidistant insulating sleeves 3 are arranged on the periphery of the corrugated pipe 4, and the cable core 2 wraps the insulating sleeve 3.
Further, the internal protective layer 7 wraps the outside of the insulating sleeve 3 and the corrugated pipe 4, gaps exist between the insulating sleeve 3 and the corrugated pipe 4 and between the insulating sleeve 3 and the internal protective layer 7, the gaps are filled with the wire cotton 6, the outer wall of the corrugated pipe 4 is transversely provided with protruding parts at equal intervals, the copper spring 5 and the corrugated pipe 4 at the center of the cable can also deform when the copper spring 5 is bent, and the bending resistance of the cable is improved through the toughness of the copper spring 5 and the space provided by the protruding corrugated pipe 4.
Further, resistant layer 8 includes stretch-proofing rubber sleeve 9 and bending-resistant board 10, the inner wall a week equidistance fixed mounting of stretch-proofing rubber sleeve 9 has bending-resistant board 10, and the bottom outer wall that just hinders bending-resistant board 10 in the outer wall contact of wearing layer 16, on the inner wall of the stretch-proofing rubber sleeve 9 of installation that hinders bending-resistant board 10 also horizontal equidistance, there is the space through hindering between bending-resistant board 10 in resistant layer 8, can provide the space when buckling for the cable, and bump each other between bending-resistant board 10 of multiunit, hinder the cable simultaneously and continue to buckle, prevent that the staff from excessively buckling the cable.
Furthermore, a plurality of groups of convex rubber soft bodies are arranged on the outer wall of the wear-resistant layer 16, the bending-resistant plate 10 can extrude towards the center along with bending, and the extrusion force of the bending-resistant plate 10 on the cable core wire group 1 can be effectively buffered through the rubber soft bodies on the surface of the wear-resistant layer 16, so that the cable core 2 in the cable core wire group 1 is prevented from being damaged.
Further, the braided layer 14 is formed by regularly twisting and braiding a plurality of groups of steel wires 13 in a manner that the plurality of groups of steel wires 13 are interlaced together toward a central point knob according to a specified direction.
The working principle is as follows: when buckling and laying the cable, a gap exists between the bending resistant plates 10 in the bending resistant layer 8, a space can be provided for the cable when the cable is buckled, the cable is buckled to multiple groups of bending resistant plates 10 to be collided with each other, meanwhile, the cable is prevented from being continuously buckled, the cable is prevented from being excessively buckled by workers, the bending resistant plates 10 can extrude towards the center along with the buckling, the extrusion force of the bending resistant plates 10 on the cable core wire group 1 can be effectively buffered through rubber software on the surface of the wear-resistant layer 16, the cable core 2 in the cable core wire group 1 is prevented from being damaged, the copper spring 5 and the corrugated pipe 4 at the center of the cable can also deform when the cable is buckled, the bending resistance of the cable is increased through the toughness of the copper spring 5 and the space provided by the protrusion of the corrugated pipe 4, the flame-retardant layer 11 is wrapped in the cable, and the heat-insulating layer 12 can effectively increase the fire resistance.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a resistant fire-retardant cable of buckling, includes cable core group (1), its characterized in that: the cable core wire group is characterized in that the outer portion of the cable core wire group (1) is wrapped with a wear-resistant layer (16), the outer portion of the wear-resistant layer (16) is wrapped with a bending-resistant layer (8), the outer portion of the bending-resistant layer (8) is wrapped with a flame-retardant layer (11), the outer wall of the flame-retardant layer (11) is wrapped with a woven layer (14), the outer portion of the woven layer (14) is wrapped with a heat-insulating layer (12), and the outer portion of the heat-insulating layer (12) is wrapped with an outer protective sleeve (15).
2. The bend-resistant flame-retardant cable according to claim 1, wherein: the cable core wire set (1) comprises a cable core (2), an insulating sleeve (3), a corrugated pipe (4), a copper spring (5), wire cotton (6) and an inner protective layer (7), wherein the copper spring (5) is located at the center of the cable, the corrugated pipe (4) wraps the copper spring (5), a plurality of groups of insulating sleeves (3) with equal distances are arranged in a circle of the corrugated pipe (4), and the cable core (2) wraps the insulating sleeve (3).
3. The bend-resistant flame-retardant cable according to claim 2, wherein: the inner protective layer (7) wraps the outer portions of the insulating sleeve (3) and the corrugated pipe (4), gaps exist among the insulating sleeve (3), the corrugated pipe (4) and the inner protective layer (7), and the gaps are filled with the wire cotton (6).
4. A bend-resistant flame-retardant cable according to claim 3, characterized in that: the outer wall of the corrugated pipe (4) is transversely provided with convex parts at equal intervals.
5. The bend-resistant flame-retardant cable according to claim 1, wherein: resistant layer (8) of bending includes stretch-proofing rubber sleeve (9) and bending-resistant board (10), the inner wall a week equidistance fixed mounting of stretch-proofing rubber sleeve (9) has bending-resistant board (10), and the bottom outer wall of bending-resistant board (10) in the outer wall contact of wearing layer (16), on the inner wall of the stretch-proofing rubber sleeve (9) of installation of also horizontal equidistance of bending-resistant board (10).
6. The bend-resistant flame-retardant cable according to claim 5, wherein: the outer wall of the wear-resistant layer (16) is provided with a plurality of groups of raised rubber soft bodies.
7. The bend-resistant flame-retardant cable according to claim 1, wherein: the braided layer (14) is formed by regularly twisting and braiding a plurality of groups of steel wires (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111655859.2A CN114464353A (en) | 2021-12-31 | 2021-12-31 | Bending-resistant flame-retardant cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111655859.2A CN114464353A (en) | 2021-12-31 | 2021-12-31 | Bending-resistant flame-retardant cable |
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| Publication Number | Publication Date |
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| CN114464353A true CN114464353A (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111655859.2A Pending CN114464353A (en) | 2021-12-31 | 2021-12-31 | Bending-resistant flame-retardant cable |
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| CN215069342U (en) * | 2021-05-11 | 2021-12-07 | 深圳中缆电缆集团有限公司 | Environment-friendly anti-torsion power cable |
| CN214705476U (en) * | 2021-06-02 | 2021-11-12 | 浙江中大元通特种电缆有限公司 | Bending-resistant abrasion-resistant leakage coaxial cable |
| CN215342050U (en) * | 2021-07-01 | 2021-12-28 | 深圳市成天泰电缆实业发展有限公司 | Tensile flexible control cable |
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