CN219641982U - Elevator trailing optical cable - Google Patents
Elevator trailing optical cable Download PDFInfo
- Publication number
- CN219641982U CN219641982U CN202223420639.4U CN202223420639U CN219641982U CN 219641982 U CN219641982 U CN 219641982U CN 202223420639 U CN202223420639 U CN 202223420639U CN 219641982 U CN219641982 U CN 219641982U
- Authority
- CN
- China
- Prior art keywords
- outer sheath
- elevator trailing
- communication unit
- elevator
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000003287 optical effect Effects 0.000 title abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 39
- 239000013307 optical fiber Substances 0.000 claims abstract description 34
- 239000004760 aramid Substances 0.000 claims abstract description 19
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 19
- 230000002787 reinforcement Effects 0.000 claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229920006231 aramid fiber Polymers 0.000 claims description 4
- 239000002657 fibrous material Substances 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 9
- 229920000915 polyvinyl chloride Polymers 0.000 description 9
- 238000005452 bending Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229920001400 block copolymer Polymers 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polybutylene terephthalate Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Communication Cables (AREA)
Abstract
The utility model relates to an elevator trailing optical cable, comprising: an outer sheath; the communication unit is arranged in the outer sheath along the extending direction of the outer sheath and comprises an optical fiber bundle and aramid yarns; the fiber bundle comprises a plurality of optical fibers, and the aramid yarn is wrapped on the periphery of the fiber bundle; the reinforcing piece is arranged on the outer sheath along the extending direction of the outer sheath and symmetrically arranged on two sides of the communication unit. The utility model solves the problems of light weight and softness of the elevator following optical cable by making the communication data cable and the reinforcement light weight and softness.
Description
Technical Field
The utility model relates to the technical field of optical cables, in particular to an elevator trailing optical cable.
Background
With the development of society, high-rise buildings are more and more, and the buildings are also higher and higher. The elevator is convenient for people to travel, and the elevator travelling cable is gradually developed from the original cable to the direction of the photoelectric composite cable.
With the rapid growth of multimedia. In elevator systems, there are key control systems, voice call systems, monitoring systems, and imaging systems are also added. Different systems need different communication lines, the original data lines cannot meet the actual demands, and as the demands increase, the number of pairs of wires in the wire harness increases continuously, and the wire harness becomes thicker and wider.
The elevator trailing cable requires that the harness be flexible enough to not be damaged under the conditions of constant bending. The existing elevator traveling cable uses a data cable made of copper wires for communication and uses steel stranded wires as reinforcing members. The existing common following composite optical cable uses optical fibers of a dry sleeve for communication and uses steel stranded wires as reinforcing members. The two defects are that the weight of the cable is large, the length of the cable is increased along with the increase of the number of floors, the weight of the cable is also increased and heavier, in addition, the dry sleeve is made of polybutylene terephthalate (PBT), the PBT is harder, the bending radius is small, the optical fiber is easy to be pressed after bending, and even the optical fiber is damaged. Therefore, the weight reduction and flexibility are the problems to be solved.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to overcome the defects in the prior art, and the problems of light weight and softness of the elevator trailing cable are solved by making the communication data cable and the reinforcing piece light weight and soft.
In order to solve the technical problems, the utility model provides an elevator trailing optical cable, comprising:
an outer sheath;
the communication unit is arranged in the outer sheath along the extending direction of the outer sheath and comprises an optical fiber bundle and aramid yarns; the fiber bundle comprises a plurality of optical fibers, and the aramid yarn is wrapped on the periphery of the fiber bundle; the communication unit is provided with at least two communication units;
the reinforcing parts are arranged on the outer sheath along the extending direction of the outer sheath and symmetrically arranged on two sides of the communication unit; the reinforcing piece is made of aramid fiber materials; the connecting line of the reinforcement passes through the communication unit in the cross-sectional direction.
As a preferred mode of the present utility model, the present utility model further comprises a power cord provided in the outer sheath along the extending direction of the outer sheath.
As a preferable mode of the present utility model, the power cord is provided between the communication unit and the reinforcement.
As a preferable mode of the utility model, the power line is a copper stranded wire.
As a preferred mode of the present utility model, the connection line of the reinforcement member passes through the power supply line in the cross-sectional direction.
As a preferable mode of the present utility model, the optical fiber is wrapped with a tight jacket layer on the outer circumference thereof.
As a preferable mode of the utility model, the aramid yarn is wrapped with a sheath layer.
As a preferable mode of the present utility model, the elevator trailing cable has a flat ribbon shape.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
according to the elevator trailing cable, the weight of the cable is reduced and the flexibility of the cable is improved by improving the communication unit and the reinforcing piece, so that the weight and the flexibility of the elevator trailing cable are realized.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
Fig. 1 is a schematic view of an elevator trailing cable of the present utility model.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Description of the specification reference numerals: 1. an outer sheath; 2. a communication unit; 211. an optical fiber; 212. a tight sleeve layer; 22. an aramid yarn; 23. a sheath layer; 3. a reinforcing member; 4. and a power supply line.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to fig. 1-2, an embodiment of an elevator trailing cable according to the present utility model is shown.
The elevator trailing optical cable includes: an outer sheath 1, a communication unit 2, a reinforcement 3 and a power cord 4.
The outer sheath 1 is made of polyvinyl chloride (Polyvinyl Chloride, PVC), low smoke zero halogen material (LSZH), thermoplastic polyester elastomer block copolymer (Hytrel) and the like.
The communication unit 2 is a data cable and is used for communication. The communication unit 2 is disposed in the outer sheath 1 along the extending direction of the outer sheath 1.
The communication unit 2 comprises an optical fiber bundle, aramid yarns 22 and a sheath layer 23.
The optical fiber bundle comprises a plurality of optical fibers 211 and a tight jacket 212.
The optical fibers 211 are all made of the same material, the number of the light rays is six, twelve, twenty-four, etc., and the optical fibers 211 are gathered to form an optical fiber bundle. The optical fiber 211 is made of glass or plastic, and compared with the prior art that copper wires are selected as the communication data cable, the optical fiber 211 has the advantages of light weight, high communication speed and good effect, and can greatly reduce the weight of the elevator trailing optical cable.
The tight jacket layer 212 is respectively wrapped on the periphery of a single optical fiber 211, and is concentric with the wrapped optical fiber 211 along the cross section direction of the elevator following optical cable, and the tight jacket layer 212 is uniform in thickness. The tight sleeve layer 212 is made of polyvinyl chloride (Polyvinyl Chloride, PVC), low smoke zero halogen material (LSZH), thermoplastic polyester elastomer block copolymer (Hytrel) and the like. The tight-buffered layer 212 is wrapped around the outside of the optical fiber 211 using a tight-buffered process. The radius of curvature of the tight-buffered optical fiber 211 is smaller, and the radius of curvature of the tight-buffered optical fiber 211 is typically 30mm, so that the flexibility of the elevator trailing cable is better.
The aramid yarn 22 is wrapped on the periphery of the optical fiber bundle, the aramid yarn 22 is uniformly wrapped on the periphery of the optical fiber bundle along the cross section direction of the elevator traveling optical cable, and the thickness of an aramid layer formed by the aramid yarn 22 is uniform.
The aramid yarn 22 has the special properties of low density, very high tensile modulus, high breaking strength, low elongation at break, and the like; the fiber reinforced plastic composite material can keep inherent stability, very low shrinkage, low creep and very high glass transition temperature at a higher temperature, has higher corrosion resistance and high non-conductivity, has stronger chemical resistance besides strong acid and strong alkali, and is a superior fiber reinforced plastic unit material.
The use of the aramid yarn 22 can reduce compression to the inner cable and improve the flexibility, so that the elevator trailing cable can have better bending performance and can reduce the weight of the cable. The aramid yarn 22 has no bend radius, so that the flexibility of the elevator trailing cable is better.
The sheath layer 23 is wrapped around the periphery of the optical fiber bundle, and the aramid yarn 22 is arranged between the sheath layer 23 and the optical fiber bundle. The sheath layer 23 is made of polyvinyl chloride (Polyvinyl Chloride, PVC), low Smoke Zero Halogen (LSZH), thermoplastic polyester elastomer block copolymer (Hytrel) and the like, and is wrapped on the outer layers of the fiber bundle and the aramid yarn 22 by a tight-fitting process.
The power cord 4 is used for providing power for the access device. The power cord 4 is disposed in the outer sheath 1 along the extending direction of the outer sheath 1. In order to protect the power cord 4, the power cord 4 is arranged between the communication unit 2 and the reinforcement 3. In order to improve the conductivity, the power line 4 is formed by twisting copper stranded wires, namely, the inner core of the power line 4 is formed by twisting copper wires.
The reinforcement 3 is used to increase the strength of the elevator trailing cable and protect the optical fiber 211. The reinforcement 3 is parallel to the optical fiber bundle and is provided in the outer sheath 1 along the extending direction of the outer sheath 1. The reinforcement members 3 are preferably provided in two, symmetrically provided on both sides of the communication unit 2.
The reinforcement 3 adopts aramid fiber material to make, uses to be favorable to improving the stretch-proofing ability of elevator retinue cable, and relative ordinary reinforcement 3, aramid fiber material's reinforcement 3 can reduce elevator retinue cable's weight.
As one embodiment, the elevator trailing cable has a flat ribbon shape. The connecting wire of the reinforcement 3 passes through the power wire 4 and the communication unit 2 along the cross section direction of the elevator traveling cable. Along the cross section direction of the elevator travelling cable, the centers of the communication unit 2, the power line 4 and the reinforcement 3 are positioned on the same straight line.
As one embodiment, the communication unit 2 is provided with at least two, and in this embodiment, preferably two communication units. The two communication units 2 may be identical, and the connecting wire of the reinforcement 3 passes through the two communication units 2 in the cross-sectional direction of the elevator traveling cable. The communication unit 2 may preferably have six optical fibers 211, and two of the communication units 2 may have twelve optical fibers 211.
The elevator optical cable has the advantages that the flexibility is better, the self weight is light, the bending radius is small, the V-shaped groove on the cable can ensure the convenience in cable opening, and the communication unit 2, the power line 4 and the reinforcing piece 3 are quickly peeled off. The multi-layer protection of the inner and outer jackets ensures that the optical fibers 211 are not damaged by accidental rubbing during use.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (8)
1. An elevator trailing fiber optic cable comprising:
an outer sheath;
the communication unit is arranged in the outer sheath along the extending direction of the outer sheath and comprises an optical fiber bundle and aramid yarns; the fiber bundle comprises a plurality of optical fibers, and the aramid yarn is wrapped on the periphery of the fiber bundle; the communication unit is provided with at least two communication units;
the reinforcing parts are arranged on the outer sheath along the extending direction of the outer sheath and symmetrically arranged on two sides of the communication unit; the reinforcing piece is made of aramid fiber materials; the connecting line of the reinforcement passes through the communication unit in the cross-sectional direction.
2. An elevator trailing cable according to claim 1 further comprising a power cord disposed within the outer jacket along the direction of extension of the outer jacket.
3. An elevator trailing cable according to claim 2 wherein the power cord is disposed between the communications unit and the reinforcement.
4. An elevator trailing cable according to claim 2 wherein the power cord is copper stranded.
5. An elevator trailing cable according to claim 2 wherein the connecting wires of the strength members extend through the power cord in a cross-sectional direction.
6. An elevator trailing cable according to claim 1 wherein the optical fiber is surrounded by a jacket layer.
7. An elevator trailing cable according to claim 1 wherein the aramid yarn is encased with a jacket layer.
8. An elevator trailing cable according to claim 1 wherein the elevator trailing cable is in the form of a flat ribbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223420639.4U CN219641982U (en) | 2022-12-20 | 2022-12-20 | Elevator trailing optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223420639.4U CN219641982U (en) | 2022-12-20 | 2022-12-20 | Elevator trailing optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219641982U true CN219641982U (en) | 2023-09-05 |
Family
ID=87820765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223420639.4U Active CN219641982U (en) | 2022-12-20 | 2022-12-20 | Elevator trailing optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219641982U (en) |
-
2022
- 2022-12-20 CN CN202223420639.4U patent/CN219641982U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |