CN213752098U - Crosslinked polyethylene insulation halogen-free low-smoke flame-retardant control cable - Google Patents
Crosslinked polyethylene insulation halogen-free low-smoke flame-retardant control cable Download PDFInfo
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- CN213752098U CN213752098U CN202022983087.2U CN202022983087U CN213752098U CN 213752098 U CN213752098 U CN 213752098U CN 202022983087 U CN202022983087 U CN 202022983087U CN 213752098 U CN213752098 U CN 213752098U
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Abstract
The utility model provides a crosslinked polyethylene insulation does not have steamed low cigarette flame retardant control cable, including a plurality of conductors, fire-retardant separator, cladding at the weaving layer of fire-retardant separator outside, parcel are at the oxygen layer that separates outside the weaving layer and set up buffer layer and oversheath outside separating the oxygen layer, fire-retardant separator is formed by the fire-retardant strip of a plurality of arcs end to end connection in proper order, and the contained angle department between every two fire-retardant strips of arc all is equipped with the fire-retardant pipe of elasticity, and the fire-retardant pipe of elasticity is supported and is leaned on the weaving layer inside wall; be equipped with a plurality of groups of bolster in the buffer layer, every group bolster all includes two arc buffering strips that arc opening is opposite, all installs the ball on every arc buffering strip, and ball rolls butt oversheath medial surface or separates oxygen layer lateral surface.
Description
Technical Field
The utility model relates to a wire and cable technical field indicates a crosslinked polyethylene insulation does not have steamed low cigarette flame retarded control cable especially.
Background
Cables are generally rope-like cables made by stranding several wires or groups of wires, each group insulated from the other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, compensation cable, shielding cable, flame-retardant cable, computer cable, signal cable, coaxial cable, fire-resistant cable, ship cable, mining cable, aluminum alloy cable and the like. They are composed of single-strand or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like, and are respectively applied to different occasions. The control cable is widely applied to the traffic industries such as industrial and mining industries, energy sources and the like, the traditional flame-retardant and fire-resistant control cable is composed of mica tape wrapping, flame-retardant filling and flame-retardant sheath, the flame-retardant and temperature-resistant grade is low, meanwhile, the property is single, and along with the continuous development of the society, people have more and more requirements on the aspects of flame retardance, high temperature resistance, stability and the like of the cable.
Therefore, the utility model provides a low fire-retardant control cable of insulating nothing of crosslinked polyethylene halogen to satisfy people's demand.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's shortcoming, provide a low fire-retardant control cable of insulating nothing halogen of crosslinked polyethylene.
In order to solve the technical problem, the utility model provides a following technical scheme: a cross-linked polyethylene insulation halogen-free low-smoke flame-retardant control cable comprises a plurality of conductors, flame-retardant separators, a woven layer coated outside the flame-retardant separators, an oxygen-isolating layer coated outside the woven layer, and a buffer layer and an outer sheath which are arranged outside the oxygen-isolating layer, wherein the flame-retardant separators are formed by sequentially connecting a plurality of arc-shaped flame-retardant strips end to end, an elastic flame-retardant pipe is arranged at an included angle between every two arc-shaped flame-retardant strips, and the elastic flame-retardant pipe abuts against the inner side wall of the woven layer; be equipped with a plurality of groups of bolster in the buffer layer, every group bolster all includes two arc buffering strips that arc opening is opposite, all installs the ball on every arc buffering strip, and ball rolls butt oversheath medial surface or separates oxygen layer lateral surface.
As an optimized technical scheme, the mounting hole has been seted up on the arc buffering strip, the ball roll mounting is in the mounting hole.
As an optimal technical scheme, all pack between the arc open end of arc buffering strip and the oversheath inside wall and the arc open end of arc buffering strip and the cavity that forms between the oxygen layer lateral wall and have fire-retardant high temperature resistant material.
As an optimized technical scheme of the utility model, the inside packing of the fire-retardant pipe of elasticity has fire-retardant particle.
As an optimal technical scheme, the fire-retardant strip of arc has been seted up and has been able to bear or endure the extrusion cavity.
As an optimal technical scheme, the outer cladding insulating layer of conductor forms the insulated wire core, and the outside at a plurality of insulated wire cores is established to fire-retardant separator cover.
As an optimized technical scheme of the utility model, the conductor is the soft copper conductor of fifth kind.
As an optimized technical scheme of the utility model, the insulating layer is made for crosslinked polyethylene insulating material.
As an optimized technical proposal, the oxygen isolation layer and the outer sheath are both made of halogen-free low-smoke flame-retardant polyolefin material.
The utility model discloses the beneficial effect who reaches is:
1. the utility model provides a low cigarette fire-retardant control cable is steamed to crosslinked polyethylene insulation nothing, through the fire-retardant separator that sets up, can increase the holistic intensity of cable, avoid control cable to use the bending to be broken, increase the stability in use and the life of whole cable;
2. the utility model can improve the flame-retardant and fire-resistant performances of the cable and prolong the service life of the cable by arranging the flame-retardant isolating piece, the elastic flame-retardant pipe, the oxygen-isolating layer, the outer sheath and the like;
3. the utility model discloses a bolster and ball that set up in the buffer layer can absorb external effort when the cable receives ambient pressure or winding power to play the effect of buffering, increased the anti extrusion of cable, antitorque, antiwind ability, effectively prolong the life of cable.
The present invention will be described in more detail with reference to the accompanying drawings and examples.
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 embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of a in FIG. 1 according to the present invention;
FIG. 3 is a schematic structural view of the flame retardant spacer of the present invention;
reference numbers in the figures: 1. a conductor; 2. a flame retardant spacer; 3. weaving layer; 4. an oxygen barrier layer; 5. a buffer layer; 6. an outer sheath; 7. an arc flame retardant strip; 8. an elastic flame retardant tube; 9. an arc-shaped buffer strip; 10. a ball bearing; 11. mounting holes; 12. flame-retardant high-temperature-resistant materials; 13. flame retardant particles; 14. an extrusion-resistant cavity; 15. an insulating layer.
Detailed Description
The terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like in the specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b): as shown in fig. 1-3, the utility model provides a cross-linked polyethylene insulation halogen-free low smoke flame retardant control cable, including a plurality of conductors 1, fire retardant spacer 2, cladding weaving layer 3 outside fire retardant spacer 2, wrap up in weaving layer 3 outside separate the oxygen layer 4 and set up at separating the buffer layer 5 and the oversheath 6 outside oxygen layer 4, fire retardant spacer 2 is formed by the end to end connection in proper order of a plurality of arc fire retardant strips 7, and the contained angle department between every two arc fire retardant strips 7 all is equipped with elasticity fire retardant tube 8, and elasticity fire retardant tube 8 supports and leans on the weaving layer 3 inside wall, can effectively improve the fire-retardant high temperature resistance of control cable; be equipped with a plurality of groups bolster in the buffer layer 5, every group bolster all includes two arc buffering strips 9 that arc opening is opposite, all install ball 10 on every arc buffering strip 9, ball 10 rolls 6 medial surfaces of butt oversheath or separates 4 lateral surfaces on the oxygen layer, strengthen the anti extrusion and antiwind performance ability of cable, when the cable is twined, separate oxygen layer 4 and the relative buffer layer 5 of oversheath 6 ability and do certain rotation, thereby effectively reduce the cable core when the winding and impaired or fracture because of the winding, thereby make the cable keep normal use, make the life of cable obtain the assurance.
Furthermore, the arc-shaped buffer strip 9 is provided with a mounting hole 11, and the ball 10 is installed in the mounting hole 11 in a rolling manner.
Further, the cavities formed between the arc-shaped open end of the arc-shaped buffer strip 9 and the inner side wall of the outer sheath 6 and between the arc-shaped open end of the arc-shaped buffer strip 9 and the outer side wall of the oxygen isolation layer 4 are filled with flame-retardant high-temperature-resistant materials 12, so that the flame-retardant effect is good.
Further, the interior of the elastic flame-retardant tube 8 is filled with flame-retardant particles 13.
Furthermore, the arc-shaped flame-retardant strip 7 is provided with an extrusion-resistant cavity 14, so that the extrusion resistance of the cable can be improved.
Further, the conductor 1 is coated with an insulating layer 15 to form an insulating wire core, and the flame-retardant isolating piece 2 is sleeved outside the insulating wire cores.
Further, the conductor 1 is a fifth soft copper conductor.
Further, the insulating layer 15 is made of a cross-linked polyethylene insulating material.
Further, the oxygen isolation layer 4 and the outer sheath 6 are both made of halogen-free low-smoke flame-retardant polyolefin materials.
The above embodiments are merely to describe the preferred embodiments of the present invention, and are not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.
Claims (9)
1. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant control cable is characterized by comprising a plurality of conductors (1), flame-retardant isolators (2), a woven layer (3) coated on the outer side of the flame-retardant isolators (2), an oxygen-isolating layer (4) coated outside the woven layer (3), and a buffer layer (5) and an outer sheath (6) which are arranged outside the oxygen-isolating layer (4), wherein the flame-retardant isolators (2) are formed by sequentially connecting a plurality of arc-shaped flame-retardant strips (7) end to end, an elastic flame-retardant tube (8) is arranged at an included angle between every two arc-shaped flame-retardant strips (7), and the elastic flame-retardant tube (8) abuts against the inner side wall of the woven layer (3); be equipped with a plurality of groups of bolster in buffer layer (5), every group bolster all includes two arc buffering strips (9) that arc opening is opposite, all installs ball (10) on every arc buffering strip (9), and ball (10) roll butt oversheath (6) medial surface or separate oxygen layer (4) lateral surface.
2. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant control cable according to claim 1, wherein the arc-shaped buffer strip (9) is provided with a mounting hole (11), and the ball (10) is installed in the mounting hole (11) in a rolling manner.
3. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant control cable according to claim 1, characterized in that the flame-retardant high-temperature resistant material (12) is filled in the cavities formed between the arc-shaped open end of the arc-shaped buffer strip (9) and the inner side wall of the outer sheath (6) and between the arc-shaped open end of the arc-shaped buffer strip (9) and the outer side wall of the oxygen barrier layer (4).
4. A crosslinked polyethylene insulated halogen-free low-smoke flame-retardant control cable according to claim 1, characterized in that the inside of the elastic flame-retardant tube (8) is filled with flame-retardant particles (13).
5. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant control cable according to claim 1, wherein the arc-shaped flame-retardant strip (7) is provided with an extrusion-resistant cavity (14).
6. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant control cable according to claim 1, wherein the conductor (1) is coated with the insulating layer (15) to form an insulated wire core, and the flame-retardant isolator (2) is sleeved outside the insulated wire cores.
7. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant control cable according to claim 1, characterized in that the conductor (1) is a fifth soft copper conductor.
8. The cross-linked polyethylene insulated halogen-free low-smoke flame-retardant control cable according to claim 6, wherein the insulating layer (15) is made of cross-linked polyethylene insulating material.
9. The cross-linked polyethylene insulation halogen-free low-smoke flame-retardant control cable according to claim 1, characterized in that the oxygen barrier layer (4) and the outer sheath (6) are both made of halogen-free low-smoke flame-retardant polyolefin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022983087.2U CN213752098U (en) | 2020-12-14 | 2020-12-14 | Crosslinked polyethylene insulation halogen-free low-smoke flame-retardant control cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022983087.2U CN213752098U (en) | 2020-12-14 | 2020-12-14 | Crosslinked polyethylene insulation halogen-free low-smoke flame-retardant control cable |
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| Publication Number | Publication Date |
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| CN213752098U true CN213752098U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022983087.2U Active CN213752098U (en) | 2020-12-14 | 2020-12-14 | Crosslinked polyethylene insulation halogen-free low-smoke flame-retardant control cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114049994A (en) * | 2021-11-11 | 2022-02-15 | 国网四川省电力公司内江供电公司 | Resistance to compression transmission cable of self-adaptation partial pressure |
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2020
- 2020-12-14 CN CN202022983087.2U patent/CN213752098U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114049994A (en) * | 2021-11-11 | 2022-02-15 | 国网四川省电力公司内江供电公司 | Resistance to compression transmission cable of self-adaptation partial pressure |
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