CN219811357U - Flat non-shielding following network cable for elevator monitoring - Google Patents
Flat non-shielding following network cable for elevator monitoring Download PDFInfo
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- CN219811357U CN219811357U CN202321094708.9U CN202321094708U CN219811357U CN 219811357 U CN219811357 U CN 219811357U CN 202321094708 U CN202321094708 U CN 202321094708U CN 219811357 U CN219811357 U CN 219811357U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 18
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 18
- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 16
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- QHSJIZLJUFMIFP-UHFFFAOYSA-N ethene;1,1,2,2-tetrafluoroethene Chemical compound C=C.FC(F)=C(F)F QHSJIZLJUFMIFP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 42
- 239000004760 aramid Substances 0.000 claims description 10
- 229920003235 aromatic polyamide Polymers 0.000 claims description 6
- 229920006231 aramid fiber Polymers 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 238000009954 braiding Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000017105 transposition Effects 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a follow-up network cable for monitoring a flat unshielded elevator, which comprises a flat polyurethane elastomer inner core, wherein four oval longitudinal holes are uniformly distributed on the polyurethane elastomer inner core in a row, oval network wire cores are sleeved in gaps in the longitudinal holes, the gap distance between the network wire cores and the longitudinal holes is not less than 0.03mm, two tensile steel strands are symmetrically arranged on the left side and the right side of the polyurethane elastomer inner core and jointly cover a butyronitrile polyvinyl chloride inner sheath layer, an AFRP reinforced braided tensile layer and a butyronitrile polyvinyl chloride outer sheath layer, the network wire cores comprise two insulating wire cores which are twisted in pairs and are jointly twisted with two filling ropes to form a wire core body, and ETFE resin wrapping antifriction layers are coated outside the wire core body. The cable has better tensile property, the sheath layer is not easy to fatigue and damage, the occurrence of conductor deformation wire breakage caused by adhesion of network wires is effectively avoided, the durability is better, and the service life is prolonged.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a follow-up network cable for monitoring a flat non-shielding elevator.
Background
The elevator trailing monitoring cable can provide power control under the condition of long suspension length and bear mechanical stress. Because the self weight of the cable, the tension to be born and the tension to bear larger mechanical impact, the following monitoring cable structure is different from that of a common cable, and special design is needed, and a steel wire stranded wire bearing cable core is additionally arranged for long-distance suspension. For example, the cable is applied to connecting monitoring equipment in an elevator car, connecting video signals and POE power supply, or being used as a signal wire adopting an IP transmission technology. However, in the working state, when the elevator traveling monitoring cable is bent, the outer skin of the network wire is easy to be adhered to the cable sheath, so that the axial extension allowance of the network wire conductor is insufficient, deformation and wire breakage are caused, and the signal transmission stability is poor. In addition, in a long-period working state, the tensile property of the outer sheath of the elevator trailing monitoring cable is insufficient, so that fatigue damage is easy to occur, the service life is short, and the cable is not durable to apply.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide the following network cable for monitoring the flat non-shielding elevator, which has better tensile property, and the sheath layer is not easy to fatigue and damage, thereby effectively avoiding the occurrence of conductor deformation and wire breakage caused by adhesion of network wires, having better durability and prolonging the service life.
The utility model solves the technical problems through the following technical proposal.
The utility model provides a flat non-shielding elevator control is with network cable that follows, includes platykurtic polyurethane elastomer inner core, four oval vertical holes have been seted up to the equipartition that is in a row on the polyurethane elastomer inner core, the gap cover is equipped with oval network core in the vertical hole, network core with gap distance between the vertical hole is not less than 0.03mm, two tensile steel strand wires symmetry set up polyurethane elastomer inner core left and right sides and cladding butyronitrile polyvinyl chloride inner sheath layer jointly, AFRP reinforcement weave tensile layer and butyronitrile polyvinyl chloride oversheath layer, network core includes two insulating core pair twists and forms the core body with two filling ropes transposition jointly, the outside cladding of core body has ETFE resin to wrap up antifriction layer.
Preferably, the insulated wire core comprises an inner conductor and an XLPE insulation layer.
Preferably, the inner conductor is formed by concentrically twisting a plurality of tin-plated copper monofilaments having a diameter of 0.01mm to 0.04 mm.
Preferably, the clearance distance between the network wire core and the longitudinal hole is not more than 0.08mm.
Preferably, the filling rope is a nylon resin filling rope.
Preferably, thermoplastic EVA adhesive layers are arranged on the outer surface of the nitrile polyvinyl chloride inner sheath layer and the inner surface of the nitrile polyvinyl chloride outer sheath layer.
Preferably, the AFRP reinforced braided tensile layer is formed by mutually and reversely spirally winding and braiding inner and outer double-layer aramid twisted yarns.
Preferably, the aramid twisted yarn is formed by twisting a plurality of aramid fibers and integrating the aramid fibers with thermoplastic polyurethane resin through hot melt bonding.
Preferably, the strand length of the wire core body is 10 to 20 times of the outer diameter of the insulated wire core.
Preferably, the two tensile steel strands are twisted in opposite directions.
The utility model has the beneficial effects that:
1. through establishing four oval network sinle silk in four oval longitudinal holes of platykurtic polyurethane elastomer inner core, then wrap up butyronitrile polyvinyl chloride inner sheath layer with two tensile steel strand wires jointly, platykurtic polyurethane elastomer inner core has elasticity, and the pliability is better, lateral pressure when can being able to bear bending slows down the stress concentration that tensile steel strand wires skew brought towards adjacent network sinle silk, helps promoting the mechanical strength and the tensile properties of cable.
2. The network wire core is oval, lateral pressure when bending can be better born, the two insulating wire cores are twisted in pairs and are balanced and stable with the wire core structure of two filling ropes twisted together, the cable core structure has better tensile structural strength, the friction coefficient of the ETFE resin wrapping antifriction layer is small, local stress concentration of the wire core body can be reduced, torque force is reduced, flexibility is improved, sliding performance of the network wire core in a longitudinal hole is improved, a gap distance of not less than 0.03mm is formed between the network wire core and the longitudinal hole, adhesion between the network wire core and the polyurethane elastomer inner core can be effectively prevented, axial extension allowance of the network wire core conductor in the bending process is facilitated, deformation and wire breakage of the conductor are effectively reduced, stability of electrical characteristics is guaranteed, durability is better, and service life is prolonged.
3. The AFRP reinforced braided tensile layer is added between the inner sheath layer and the outer sheath layer of the butyronitrile polyvinyl chloride, so that the flexibility and the tensile property of the cable are improved, the AFRP reinforced braided tensile layer can reduce local stress concentration, reduce torque force, increase the mechanical strength of the inner sheath layer and the outer sheath layer, and the sheath layer is not easy to fatigue and damage in a long-period working state, so that the cable sheath is effectively protected, the durability is better, and the service life is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the practical drawings required in the embodiments or the prior art, and it is obvious that the drawings described below are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model.
In the figure: 1-polyurethane elastomer inner core, 2-longitudinal hole, 3-network wire core, 4-tensile steel strand, 5-butyronitrile polyvinyl chloride inner sheath layer, 6-AFRP reinforced braided tensile layer, the cable comprises a 7-butyronitrile polyvinyl chloride outer sheath layer, an 8-insulated cable core, a 9-filling rope, a 10-ETFE resin wrap antifriction layer, an 11-inner conductor and a 12-XLPE insulation layer.
Description of the embodiments
The utility model will now be described in further detail with reference to specific examples thereof in connection with the accompanying drawings.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model are clearly and completely described with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.
As shown in fig. 1, the flat non-shielding network cable for elevator monitoring in the embodiment of the utility model comprises a flat polyurethane elastomer inner core 1, wherein four oval longitudinal holes 2 are uniformly distributed on the polyurethane elastomer inner core 1 in a row, oval network wire cores 3 are sleeved in the longitudinal holes 2 in a clearance mode, and the clearance distance between the network wire cores 3 and the longitudinal holes 2 is not smaller than 0.03mm, and further, not larger than 0.08mm. The network wire core 3 comprises two insulated wire cores 8 twisted in pairs and twisted together with two filling ropes 9 to form a wire core body, and the twisting distance of the wire core body is 10 to 20 times of the outer diameter of the insulated wire cores 8. The outer part of the wire core body is coated with an ETFE resin wrap antifriction layer 10. In one embodiment, the insulated wire core 8 comprises an inner conductor 11 and an XLPE insulation layer 12, in particular, the inner conductor 11 is formed by concentrically twisting a plurality of tin-plated copper monofilaments having a diameter of 0.01mm to 0.04 mm. The filling cord 9 is, for example, a nylon resin filling cord.
The two tensile steel strands 4 are symmetrically arranged at the left side and the right side of the polyurethane elastomer inner core 1 and jointly cover the butyronitrile polyvinyl chloride inner sheath layer 5, the AFRP reinforced braided tensile layer 6 and the butyronitrile polyvinyl chloride outer sheath layer 7, and further, the outer surface of the butyronitrile polyvinyl chloride inner sheath layer 5 and the inner surface of the butyronitrile polyvinyl chloride outer sheath layer 7 are both provided with thermoplastic EVA adhesive layers. The two tensile steel strands 4 are twisted in opposite directions. In one embodiment, the AFRP reinforced braided tensile layer 6 is formed by mutually and reversely spirally winding and braiding inner and outer double-layer aramid twisted threads, and further, the aramid twisted threads are formed by twisting a plurality of aramid fibers and are integrally bonded with thermoplastic polyurethane resin in a hot melt manner.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. Flat non-shielding elevator control is with retinue network cable, characterized by: including platykurtic polyurethane elastomer inner core (1), four oval vertical hole (2) have been seted up to being one row equipartition on polyurethane elastomer inner core (1), vertical hole (2) inner gap cover is equipped with oval network core (3), network core (3) with gap distance between vertical hole (2) is not less than 0.03mm, two tensile steel strand wires (4) symmetry set up polyurethane elastomer inner core (1) left and right sides and cladding butyronitrile polyvinyl chloride inner sheath layer (5), AFRP reinforcement weave tensile layer (6) and butyronitrile polyvinyl chloride oversheath layer (7), network core (3) include two insulating core (8) twisted pairs and form the core body with two packing ropes (9) transposition jointly, the outside cladding of core body has ETFE resin around package antifriction layer (10).
2. The flat non-shielded elevator monitoring retinue network cable according to claim 1, characterized in that: the insulated wire core (8) comprises an inner conductor (11) and an XLPE insulation layer (12).
3. The trailing network cable for monitoring a flat unshielded elevator according to claim 2, characterized in that: the inner conductor (11) is formed by concentrically twisting a plurality of tinned copper monofilaments with diameters of 0.01mm to 0.04 mm.
4. The flat non-shielded elevator monitoring retinue network cable according to claim 1, characterized in that: the clearance distance between the network wire core (3) and the longitudinal hole (2) is not more than 0.08mm.
5. The flat non-shielded elevator monitoring retinue network cable according to claim 1, characterized in that: the filling rope (9) is a nylon resin filling rope.
6. The flat non-shielded elevator monitoring retinue network cable according to claim 1, characterized in that: the outer surface of the butyronitrile polyvinyl chloride inner sheath layer (5) and the inner surface of the butyronitrile polyvinyl chloride outer sheath layer (7) are both provided with thermoplastic EVA adhesive layers.
7. The flat non-shielded elevator monitoring retinue network cable according to claim 1, characterized in that: the AFRP reinforced braided tensile layer (6) is formed by mutually and reversely spirally winding and braiding inner and outer double-layer aramid twisted yarns.
8. The trailing network cable for monitoring a flat unshielded elevator according to claim 7, characterized in that: the aramid twisted yarns are formed by twisting a plurality of aramid fibers and are integrally bonded with thermoplastic polyurethane resin through hot melting.
9. The flat non-shielded elevator monitoring retinue network cable according to claim 1, characterized in that: the lay length of the wire core body is 10 to 20 times of the outer diameter of the insulated wire core (8).
10. The flat non-shielded elevator monitoring retinue network cable according to claim 1, characterized in that: the two tensile steel strands (4) are oppositely twisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321094708.9U CN219811357U (en) | 2023-05-09 | 2023-05-09 | Flat non-shielding following network cable for elevator monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321094708.9U CN219811357U (en) | 2023-05-09 | 2023-05-09 | Flat non-shielding following network cable for elevator monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219811357U true CN219811357U (en) | 2023-10-10 |
Family
ID=88216394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321094708.9U Active CN219811357U (en) | 2023-05-09 | 2023-05-09 | Flat non-shielding following network cable for elevator monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219811357U (en) |
-
2023
- 2023-05-09 CN CN202321094708.9U patent/CN219811357U/en active Active
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