CN113488250A - Anti-extrusion flame-retardant cable - Google Patents
Anti-extrusion flame-retardant cable Download PDFInfo
- Publication number
- CN113488250A CN113488250A CN202110660099.8A CN202110660099A CN113488250A CN 113488250 A CN113488250 A CN 113488250A CN 202110660099 A CN202110660099 A CN 202110660099A CN 113488250 A CN113488250 A CN 113488250A
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- Prior art keywords
- cable
- extrusion
- protective tube
- layer
- tube
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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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- 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
- H01B7/184—Sheaths comprising grooves, ribs or other projections
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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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- Details Of Indoor Wiring (AREA)
Abstract
The invention discloses an anti-extrusion flame-retardant cable which comprises a cable rubber sleeve, wherein a fixed rubber layer, a metal woven mesh layer and a high-temperature resistant layer are sequentially arranged on a cable main body from inside to outside, a hollow rubber tube is arranged at the center of an inner cavity of the cable rubber sleeve, three elastic reinforcing ribs are inserted between the outer side of the circumference of the hollow rubber tube and the fixed rubber layer, two adjacent elastic reinforcing ribs, the fixed rubber layer and the hollow rubber tube form a cable installation cavity in a surrounding mode, an oval protective tube is arranged in the inner cavity of the cable installation cavity, and a cable core is arranged in the inner cavity of the oval protective tube.
Description
Technical Field
The invention relates to the technical field of cables, in particular to an anti-extrusion flame-retardant cable.
Background
A cable is generally a rope-like cable made up of several or several groups of conductors (at least two in each group) twisted together, each group being insulated from each other and usually twisted around a center, the whole being covered with a highly insulating covering, the cable being characterized by internal electrical conduction and external insulation, in particular for cables used in large installations.
The cable on present heavy mobile device takes place the motion along with the removal of the executive component on the equipment, the cable can be continuous in the motion process buckles distortion etc. and the inside optic fibre of electricity needs to bear long-term buckling, long-term in using, the cable can split or break, thereby make the cable core expose, cause the interrupt of optical cable's signal transmission like this easily, and the outside external member of cable adopts full rubber goods more, in case take place high temperature burning, the outside external member of cable burns rapidly, the cable is punctured very easily and causes the short circuit, the protectiveness is not enough.
Disclosure of Invention
The invention aims to provide an anti-extrusion flame-retardant cable, which solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an anti extrusion flame retarded cable, includes the cable gum cover, the cable gum cover has set gradually fixed glue film, metal woven mesh layer and high temperature resistant layer from inside to outside, cable gum cover inner chamber center department sets up hollow rubber tube, it has three elasticity strengthening rib, adjacent two to peg graft between the circumference outside of hollow rubber tube and the fixed glue film enclose into a cable installation cavity between elasticity strengthening rib and fixed glue film and the hollow rubber tube, the inner chamber in cable installation cavity is provided with oval protective tube, the inner chamber of oval protective tube is provided with the cable core.
Preferably, the high-temperature resistant layer is made of a halogen-free flame retardant material.
Preferably, the side wall of the oval protective tube is tangent to the two adjacent elastic reinforcing ribs and the fixed glue layer respectively.
Preferably, the inner cavity of the oval protective tube is filled with inert gas.
Preferably, the diameter size of the cable core is the same as the length of the short axis of the oval protective tube, and the circle center of the cable core is at the same point as the oval center of the oval protective tube.
Preferably, the three elastic reinforcing ribs are provided with T-shaped limiting columns at the ends far away from the hollow rubber tube, and T-shaped limiting grooves matched with the T-shaped limiting columns are formed in the side wall of the inner cavity of the fixed rubber layer.
Compared with the prior art, the invention has the beneficial effects that:
the anti-extrusion flame-retardant cable comprises a buffering mechanism which is formed by the elastic reinforcing ribs and the hollow rubber tube, wherein the hollow rubber tube has a certain deformation effect, when the elastic reinforcing ribs are extruded, the elastic reinforcing ribs extrude the hollow rubber tube and measure the deformation and the depression of the hollow rubber tube, and the hollow rubber tube generates a force in the opposite direction, so that the extrusion force on the surface of the cable rubber sleeve is counteracted, meanwhile, the surface of the cable rubber sleeve can also deform, the bending of the cable is facilitated, the bending degree is large, the deformation space of the oval protective tube in the radial direction of the cable is large, and the cable core protection effect of the power cable is optimal.
Secondly, the inner cavity of the elliptical protective tube is filled with inert gas, the inert gas has no combustibility, oxygen can be blocked, powerful conditions of combustion are reduced, the high-temperature resistant layer is made of halogen-free flame retardant materials, black smoke and toxic gas cannot be generated when the halogen-free flame retardant materials are combusted, combustion of the cable can be blocked, and multiple flame retardant effects are achieved.
The metal woven net layer in the anti-extrusion flame-retardant cable can enhance the structural strength of the cable, and meet the requirements of improving the axial tensile capacity and radial impact resistance and bending capacity of the cable, so that the service life of the cable is prolonged.
Drawings
FIG. 1 is a front view in cross section of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of a cable rubber sleeve according to the present invention;
FIG. 3 is a schematic view of the connection structure of the elastic reinforcing rib and the hollow rubber hose of the invention;
in the figure, 1, a cable rubber sleeve; 2. fixing the adhesive layer; 3. a metal woven mesh layer; 4. a high temperature resistant layer; 5. elastic reinforcing ribs; 6. a hollow rubber tube; 7. an elliptical protective tube; 8. a cable core; 9. a cable installation cavity; 10. a T-shaped limiting column; 11. t shape spacing groove.
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. 1-3, an embodiment of the present invention is provided.
As shown in fig. 1 and 3, an anti-extrusion flame-retardant cable comprises a cable rubber sleeve 1, the cable rubber sleeve 1 is sequentially provided with a fixed rubber layer 2, a metal woven mesh layer 3 and a high temperature resistant layer 4 from inside to outside, thus being convenient for protecting the cable main body, the metal braided net layer 3 can strengthen the structural strength of the cable, and meet the requirements of improving the axial tensile capacity and the radial shock resistance and bending capacity of the cable, thereby increase the life of cable, cable gum cover 1 inner chamber center department sets up hollow rubber tube 6, pegs graft between the circumference outside of hollow rubber tube 6 and fixed glue film 2 and have three elastic reinforcement 5, enclose into a cable installation cavity 9 between two adjacent elastic reinforcement 5 and fixed glue film 2 and the hollow rubber tube 6, the inner chamber of cable installation cavity 9 is provided with oval protective tube 7, and the inner chamber of oval protective tube 7 is provided with cable core 8.
At heavy mobile device during operation, the cable can receive extrusion and tensile, when the cable receives extrusion and tensile, cable gum cover 1 is inside sunken under external force, oval protective tube 7 receives the extrusion simultaneously with elastic reinforcement 5, and elastic reinforcement 5 extrudes hollow rubber tube 6, hollow rubber tube 6 takes place deformation, make the whole direction motion along hollow rubber tube 6 deformation of elastic reinforcement 5, the buffering effect is good, fixed glue film 2 is fixed to wrapping up of cable, 3 reinforcing cable self structural strength on metal braiding stratum reticulare, further cable axial tensile strength ability and radial shock resistance have been improved, the needs of the ability of buckling, thereby increase the life of cable, high temperature resistant layer 4 plays the effect that the fire prevention burns through.
Further, as shown in fig. 1-2, the high temperature resistant layer 4 is made of halogen-free flame retardant material, and the halogen-free flame retardant material does not generate black smoke and toxic gas when burning, so that the safety performance is improved, and the burning of the cable can be blocked.
Further, as shown in fig. 1, the side wall of the oval protective pipe 7 is tangent to the two adjacent elastic reinforcing ribs 5 and the fixed glue layer 2, so that the oval protective pipe 7 can be limited and fixed, the possibility of rotation of the oval protective pipe 7 is reduced, a gap is reserved between the oval protective pipe 7 and the hollow rubber pipe 6, when the cable is subjected to extrusion force, a buffer area exists between the oval protective pipe 7 and the hollow rubber pipe 6, and the compression resistance effect is good.
Further, as shown in fig. 1-2, the inner cavity of the oval protective tube 7 is filled with inert gas, which has no combustibility, and can block oxygen, reducing the forceful conditions of combustion, thereby achieving the effect of fire extinguishing.
Further, as shown in fig. 1, the diameter of the cable core 8 is the same as the length of the short axis of the elliptical protection tube 7, and the center of the cable core 8 is at the same point as the center of the ellipse of the elliptical protection tube 7, so that the cable core 8 can be conveniently limited and fixed, and the possibility of the cable core 8 shifting is reduced.
Further, as shown in fig. 2-3, the end of each of the three elastic reinforcing ribs 5, which is far away from the hollow rubber tube 6, is provided with a T-shaped limiting post 10, the sidewall of the inner cavity of the fixed rubber layer 2 is provided with a T-shaped limiting groove 11 which is matched with the T-shaped limiting post 10, the insertion mode facilitates the installation and the disassembly of the cable rubber sleeve 1 and the elastic reinforcing ribs 5, and the T-shaped limiting post 10 and the T-shaped limiting groove 11 are installed in a matched manner to enable the installation of the elastic reinforcing ribs 5 to be firmer.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides an anti extrusion flame retarded cable, includes cable gum cover (1), its characterized in that: cable gum cover (1) is by interior to having set gradually fixed glue film (2), metal woven mesh layer (3) and high temperature resistant layer (4) outward, cable gum cover (1) inner chamber center department sets up hollow rubber tube (6), it has three elastic reinforcement (5), adjacent two to peg graft between the circumference outside of hollow rubber tube (6) and fixed glue film (2) enclose into a cable installation cavity (9) between elastic reinforcement (5) and fixed glue film (2) and hollow rubber tube (6), the inner chamber of cable installation cavity (9) is provided with oval protective tube (7), the inner chamber of oval protective tube (7) is provided with cable core (8).
2. The extrusion-resistant flame-retardant cable as claimed in claim 1, wherein: the high temperature resistant layer (4) is made of halogen-free flame retardant materials.
3. The extrusion-resistant flame-retardant cable as claimed in claim 1, wherein: the side wall of the oval protective tube (7) is tangent to the two adjacent elastic reinforcing ribs (5) and the fixed glue layer (2) respectively.
4. The extrusion-resistant flame-retardant cable as claimed in claim 1, wherein: the inner cavity of the oval protective tube (7) is filled with inert gas.
5. The extrusion-resistant flame-retardant cable as claimed in claim 1, wherein: the diameter size of the cable core (8) is the same as the length of the short axis of the oval protective tube (7), and the circle center of the cable core (8) is at the same point as the oval center of the oval protective tube (7).
6. The extrusion-resistant flame-retardant cable as claimed in claim 1, wherein: the rubber hose fixing structure is characterized in that a T-shaped limiting column (10) is arranged at one end, far away from the hollow rubber hose (6), of each elastic reinforcing rib (5), and a T-shaped limiting groove (11) matched with the T-shaped limiting column (10) is formed in the side wall of the inner cavity of each fixing rubber layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110660099.8A CN113488250A (en) | 2021-06-15 | 2021-06-15 | Anti-extrusion flame-retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110660099.8A CN113488250A (en) | 2021-06-15 | 2021-06-15 | Anti-extrusion flame-retardant cable |
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| Publication Number | Publication Date |
|---|---|
| CN113488250A true CN113488250A (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110660099.8A Pending CN113488250A (en) | 2021-06-15 | 2021-06-15 | Anti-extrusion flame-retardant cable |
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| Country | Link |
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| CN (1) | CN113488250A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114743725A (en) * | 2022-04-15 | 2022-07-12 | 江苏迅达线缆有限公司 | High-strength fire-resistant cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210073448U (en) * | 2019-07-24 | 2020-02-14 | 安徽光复电缆有限公司 | Aerospace tensile anti-extrusion high-temperature-resistant data bus cable |
| CN212967213U (en) * | 2020-09-09 | 2021-04-13 | 济南圣通电力线缆有限公司 | Anti-aging railway cable with flame-retardant function |
| CN212967203U (en) * | 2020-09-04 | 2021-04-13 | 济南圣通电力线缆有限公司 | Mould-proof and damp-proof power cable |
| CN212967238U (en) * | 2020-09-04 | 2021-04-13 | 济南圣通电力线缆有限公司 | Photoelectric composite cable for heavy mobile equipment |
| CN213183689U (en) * | 2020-09-04 | 2021-05-11 | 济南圣通电力线缆有限公司 | Flame-retardant and fire-resistant cable for communication power supply |
-
2021
- 2021-06-15 CN CN202110660099.8A patent/CN113488250A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210073448U (en) * | 2019-07-24 | 2020-02-14 | 安徽光复电缆有限公司 | Aerospace tensile anti-extrusion high-temperature-resistant data bus cable |
| CN212967203U (en) * | 2020-09-04 | 2021-04-13 | 济南圣通电力线缆有限公司 | Mould-proof and damp-proof power cable |
| CN212967238U (en) * | 2020-09-04 | 2021-04-13 | 济南圣通电力线缆有限公司 | Photoelectric composite cable for heavy mobile equipment |
| CN213183689U (en) * | 2020-09-04 | 2021-05-11 | 济南圣通电力线缆有限公司 | Flame-retardant and fire-resistant cable for communication power supply |
| CN212967213U (en) * | 2020-09-09 | 2021-04-13 | 济南圣通电力线缆有限公司 | Anti-aging railway cable with flame-retardant function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114743725A (en) * | 2022-04-15 | 2022-07-12 | 江苏迅达线缆有限公司 | High-strength fire-resistant cable |
| CN114743725B (en) * | 2022-04-15 | 2024-06-07 | 江苏迅达线缆有限公司 | High-strength fire-resistant cable |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211008 |
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| RJ01 | Rejection of invention patent application after publication |