Elevator accompanying flat cable

Abstract

The utility model discloses an elevator accompanying flat cable which comprises a flat outer protection layer used for wrapping components horizontally placed in the elevator accompanying flat cable. The control unit comprises control wire groups which are horizontally arranged on the left side and the right side of the interior of the flat outer protection layer in parallel and are symmetrical, and each control wire group comprises a central elastic filling strip and insulating wire cores which surround the periphery of the filling strip and are arranged in a twisted mode; the communication unit comprises symmetrical communication wire groups which are horizontally arranged in the middle of the flat outer protection layer in parallel, each communication wire group comprises two video wires, a communication optical cable, a drainage wire, a shielding layer and an inner protection layer, the video wires, the communication optical cables and the drainage wires which are twisted are wrapped by the shielding layers, and the inner protection layers are extruded on the outer surfaces of the shielding layers; the steel wire ropes are symmetrically arranged on two sides of the communication unit. The communication line group is simple in structure and easy to produce and manufacture, improves the anti-interference capability of the communication line group, reduces signal distortion, and improves the bending resistance and fracture resistance of the traveling cable.

Description

Technical Field

[0001] The utility model relates to the field of electric wires and cables, in particular to an elevator accompanying flat cable. Background Art

[0002] In recent years, with the advancement of urbanization and urban planning, the construction of high-rise buildings, petroleum, mining, metallurgy, shipbuilding, power stations, subways, airports, train stations, and tunnel transportation has increased, as have the number of large-scale public sports and entertainment venues and public transportation facilities. Elevators are increasingly used. Elevator cables, which serve as advertising media, carry both power and signal transmission, traveling up and down the cable. Currently, video transmission is typically done using TV cables. However, with the popularity of Internet television and its widespread application in elevator equipment, the demand for local area network (LAN) cables is increasing. However, conventional LAN cables or coaxial cables, which are single copper conductors, are not designed to withstand the high-intensity up and down motion of the cable, causing the conductor to twist or partially break, which can easily cause communication line distortion or even disconnection.

[0003] In view of this, the present application aims to develop an elevator accompanying flat cable that can effectively meet the current transmission requirements of elevator communication signals. At the same time, the shielding layer can reduce external interference to the communication line group, improve the anti-interference ability of the communication line group, reduce signal distortion, and improve the bending and breaking resistance of the accompanying cable. Utility Model Content

[0004] The problem to be solved by the utility model is that the signal line of the existing elevator accompanying cable cannot meet the demand, and the cable is easily twisted or broken.

[0005] In order to solve the above technical problems, the utility model provides an elevator accompanying flat cable, comprising: a flat outer protective layer for wrapping the horizontally placed components inside the elevator accompanying flat cable; a control unit, comprising a plurality of control wire groups horizontally arranged in parallel on the left and right sides of the inside of the flat outer protective layer, at least one pair of control wire groups symmetrically arranged on the left and right sides of the inside of the flat outer protective layer, each control wire group comprising a central elastic filling strip and an insulated wire core twisted around the outer periphery of the filling strip; a communication unit, comprising a plurality of symmetrical communication wire groups horizontally arranged in parallel in the middle of the flat outer protective layer, each communication wire group comprising two video cables, a communication optical cable, a drainage wire, a shielding layer, and an inner protective layer, the shielding layer wrapping the twisted video cables, communication optical cables and drainage wires, and the inner protective layer being extruded on the outer surface of the shielding layer; steel ropes symmetrically arranged on both sides of the communication unit, and the steel ropes on both sides are twisted in opposite directions.

[0006] According to an embodiment of the present application, two video lines are twisted in parallel, and the communication optical cable and the drainage line are respectively located on both sides of the twisting point of the video lines.

[0007] According to an embodiment of the present application, each control wire group includes 5 insulated cores, and the insulated cores include a plurality of twisted annealed fine copper wires and an outer extruded halogen-free low-smoke cross-linked polyolefin flame retardant insulation layer.

[0008] According to an embodiment of the present application, the control line groups on the left and right sides of the flat outer protective layer are symmetrically arranged along the flat direction, with opposite twisting directions, and the total number is an even number.

[0009] According to the embodiment of the present application, the shielding layer is formed by wrapping an external aluminum-plastic composite tape tightly, and the inner protective layer extruded on the outer surface of the shielding layer is a halogen-free low-smoke cross-linked polyolefin flame-retardant circular inner protective layer.

[0010] According to an embodiment of the present application, the steel wire rope is an aviation steel wire rope, and the symmetrically arranged aviation steel wire ropes have opposite twist directions.

[0011] According to an embodiment of the present application, the center of the video cable is a soft copper conductor, and the outer surface of the soft copper conductor is extruded with a halogen-free, low-smoke, cross-linked polyolefin flame-retardant insulation layer.

[0012] According to an embodiment of the present application, the flat outer protective layer is a halogen-free low-smoke elastomer cross-linked polyolefin anti-termite flame retardant outer protective layer.

[0013] According to an embodiment of the present application, the control unit in the flat outer protective layer includes three control line groups located on the left side of the flat outer protective layer and three control line groups located on the right side of the flat outer protective layer.

[0014] According to an embodiment of the present application, the communication unit includes two symmetrical communication line groups in the middle of the flat outer protective layer.

[0015] The beneficial effects of the technical solution of this utility model compared with the prior art are:

[0016] 1. The raw materials of the outer protective layer, inner protective layer, insulating layer and conductor outer sheath adopted in the present invention are halogen-free and low-smoke cross-linked polyolefin flame-retardant insulating materials. Compared with ordinary flame-retardant and termite-proof PVC materials, it does not contain chemicals harmful to the environment. It mainly achieves the purpose of termite prevention through physical properties, and uses the hardness of the cable sheath material and the smoothness of the cable surface to prevent termite invasion. It is not only low in production cost but also flame-retardant. The smoke concentration generated under flame combustion is extremely low, and the amount of toxic and corrosive halogen acid gas released is also extremely small. It also has good mechanical properties and has halogen-free, low-smoke, low-toxicity, flame-retardant Class A, and termite-proof functions.

[0017] 2. The communication unit in this utility model's accompanying flat cable includes a video cable, a communication optical cable, and a shielding layer, achieving faster transmission speeds and effectively meeting current elevator communication signal transmission requirements. The shielding layer also reduces external interference with the communication cable assembly, improving its anti-interference capabilities and minimizing signal distortion.

[0018] 3. The network cable set of the utility model adopts the shape of a flat cable. When the accompanying cable is bent, its deformation is small and it is not easy to break, thereby improving the bending and breaking resistance of the accompanying cable.

[0019] 4. The wire group of the present invention adopts a composite conductor structure. The soft copper conductor and the halogen-free low-smoke cross-linked polyolefin flame-retardant insulation outer sheath have strong tensile strength and flexibility. Through the combination with the flat halogen-free low-smoke cross-linked polyolefin flame-retardant outer protective layer, it can not only ensure that the flat cable has a stable structure and is not easy to break during the accompanying operation, but also ensure the stability of the network transmission signal and improve the complete operation capability of the flat cable line.

[0020] 5. The control line groups, communication line groups and steel wire ropes in the accompanying flat cable of the present invention all adopt a symmetrically arranged structure. When the accompanying cable is bent, the force is symmetrical and uniform, and it is not easy to be damaged or entangled. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a schematic diagram of the structure of an elevator traveling flat cable.

[0022] The following are the descriptions of the reference numerals:

[0023] 10. Flat outer protective layer, 20. Control unit, 21. Control line group, 30. Communication unit, 31. Video cable, 32. Drain line, 33. Communication optical cable, 40. Steel wire rope, 211. Elastic filling strip, 212. Insulated core, 2121. Insulation layer. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] It should be noted that halogen-free, low-smoke, cross-linked polyolefin flame-retardant insulation materials, halogen-free, low-smoke, cross-linked polyolefin flame-retardant sheathing materials, and halogen-free, low-smoke, elastomeric cross-linked polyolefin termite-resistant sheathing materials are made primarily from polyolefin resins, with coupling agents, flame retardants, stabilizers, smoke suppressants, lubricants, and other additives added through mixing, extrusion, and granulation. These halogen-free, low-smoke, cross-linked polyolefin materials are non-toxic, odorless, resistant to high and low temperatures, ozone aging, and weathering, and possess excellent electrical insulation and mechanical properties. Furthermore, they are flexible, offer excellent flame retardancy, and offer good processability. Furthermore, these halogen-free, low-smoke, flame-retardant, elastomeric cross-linked polyolefin termite-resistant sheathing materials are environmentally friendly and contain no harmful chemicals. They primarily achieve their termite-resistant properties through their physical properties. They utilize the hardness of the cable sheathing material and the smoothness of the cable surface to prevent termite infestation.

[0026] like Figure 1As shown, an elevator accompanying flat cable according to an example of the present invention includes a flat outer protective layer 10 and a control unit 20, a communication unit 30 and a steel wire rope 40 placed in the flat outer protective layer 10. Compared with the ordinary flame-retardant and termite-proof PVC material commonly used in the prior art, the present application uses halogen-free and low-smoke polyolefin flame-retardant materials for the wire groups of the protective layer, the control unit 20 and the communication unit 30. It does not contain chemicals harmful to the environment, and mainly achieves the purpose of anti-termite through physical properties, and utilizes the hardness of the cable sheath material and the smoothness of the cable surface to prevent termite infestation. At the same time, the halogen-free and low-smoke elastomeric cross-linked polyolefin material and the halogen-free and low-smoke cross-linked polyolefin flame retardant produce extremely low smoke concentrations under flame combustion, and release very little toxic and corrosive halogen acid gas. It also has good mechanical properties, meets the halogen-free, low-smoke, low-toxic, flame-retardant Class A, and termite-proof functions, and is suitable for elevator shafts in termite-infested areas to prevent termites from damaging the elevator accompanying cable and ensure safe power supply and signal transmission between the control cabinet and the car.

[0027] In this embodiment, the flat outer protective layer 10 is used to wrap the horizontally placed components in the elevator traveling flat cable.

[0028] Specifically, the flat outer protective layer 10 is preferably manufactured from a halogen-free, low-smoke, elastomer, cross-linked polyolefin, flame-retardant, termite-resistant sheathing material. This material offers low production costs, excellent flame retardancy, and termite resistance. It produces extremely low smoke concentrations during combustion, releases minimal toxic and corrosive halogen acid gases, and exhibits excellent mechanical properties. The preferred flat design minimizes deformation when the traveling cable is bent, making it less susceptible to breakage and enhancing its bending and breakage resistance.

[0029] In this embodiment, the control unit 20 includes a plurality of control wire groups 21 arranged horizontally and parallelly on the left and right sides of the flat outer protective layer 10, and at least one pair of control wire groups 21 are symmetrically arranged on the left and right sides of the flat outer protective layer 10. Each control wire group 21 includes a central elastic filling strip 211 and an insulated wire core 212 twisted and arranged around the outer periphery of the filling strip.

[0030] Specifically, the control wire groups 21 on the left and right sides of the flat outer protective layer 10 are symmetrically arranged along the flat direction, with opposite twisting directions, and the total number is an even number.

[0031] Specifically, the control unit 20 preferably includes three control line groups 21 located on the left side of the flat outer protective layer 10 and three control line groups 21 located on the right side of the flat outer protective layer 10 .

[0032] Specifically, each control wire group 21 includes 5 insulated cores 212, and the insulated cores 212 include multiple twisted annealed fine copper wires and an outer extruded halogen-free, low-smoke, cross-linked polyolefin flame-retardant insulation layer 2121. The halogen-free, low-smoke, cross-linked polyolefin flame-retardant insulation material has excellent flame retardant properties. The smoke concentration generated during combustion is extremely low, and the amount of toxic and corrosive halogen acid gas released is also extremely small. At the same time, it also has good mechanical properties.

[0033] Specifically, the control wire groups 21 on the left and right sides of the flat outer protective layer 10 are symmetrically arranged along the flat direction, with opposite twist directions, and the total number is an even number. Preferably, the control unit 20 comprises six control wire groups 21, with three control wire groups 21 evenly distributed on each of the left and right sides of the flat outer protective layer 10. The control wire groups 21 on the left and right sides are symmetrically arranged and longitudinally opposed, and the number of control wire groups 21 is an even number.

[0034] In this embodiment, the communication unit 30 includes multiple symmetrical communication line groups arranged horizontally and parallelly in the middle of the flat outer protective layer 10. Each communication line group includes two video lines 31, a communication optical cable 33, a drainage line 32, a shielding layer, and an inner sheath. The shielding layer wraps around the twisted video lines 31, the communication optical cable 33, and the drainage line 32, and the inner sheath is extruded on the outer surface of the shielding layer.

[0035] Specifically, the communication unit 30 is preferably two communication line groups symmetrically arranged in the middle of the flat outer protective layer 10.

[0036] Specifically, two video cables 31 are twisted in parallel, with a communication optical cable 33 and a drain cable 32 located on either side of the twisted portion. The video cables 31 have a core of soft copper conductors, which are extruded with a flame-retardant insulation layer made of a halogen-free, low-smoke, cross-linked polyolefin. This flame-retardant material offers excellent flame retardancy, produces extremely low smoke concentrations during combustion, and releases minimal toxic and corrosive halogen acid gases. It also exhibits excellent mechanical properties.

[0037] Specifically, the shielding layer is formed by wrapping an outer aluminum-plastic composite tape tightly, and the inner protective layer extruded on the outer surface of the shielding layer is preferably made of a halogen-free, low-smoke cross-linked polyolefin flame-retardant sheath material, which has excellent flame retardant properties. The smoke concentration generated during combustion is extremely low, and the amount of toxic and corrosive halogen acid gas released is also extremely small. At the same time, it also has good mechanical properties.

[0038] In this embodiment, the steel wire ropes 40 are symmetrically arranged on both sides of the communication unit 30, and the steel wire ropes 40 on both sides are twisted in opposite directions. The steel wire ropes 40 can preferably be aviation steel wire ropes 40, and the symmetrically arranged aviation steel wire ropes 40 are twisted in opposite directions.

[0039] Specifically, halogen-free, low-smoke, cross-linked polyolefin flame-retardant insulation materials, halogen-free, low-smoke, cross-linked polyolefin flame-retardant sheathing materials, and halogen-free, low-smoke, elastomer-based cross-linked polyolefin termite-resistant flame-retardant sheathing materials are made from polyolefin resin as the primary raw material, along with coupling agents, flame retardants, stabilizers, smoke suppressants, lubricants, and other additives, through mixing, extrusion, and granulation. These materials are non-toxic, odorless, resistant to high and low temperatures, ozone aging, and weathering, and possess excellent electrical insulation and mechanical properties. Furthermore, they are flexible, offer excellent flame retardancy, and offer good processing properties.

[0040] In summary, the technical solution of this application has the following beneficial effects:

[0041] 1. The raw materials of the outer protective layer, inner protective layer, insulating layer and conductor outer sheath adopted in the present invention are halogen-free and low-smoke cross-linked polyolefin flame-retardant insulating materials. Compared with ordinary flame-retardant and termite-proof PVC materials, it does not contain chemicals harmful to the environment. It mainly achieves the purpose of termite prevention through physical properties, and uses the hardness of the cable sheath material and the smoothness of the cable surface to prevent termite invasion. It is not only low in production cost but also flame-retardant. The smoke concentration generated under flame combustion is extremely low, and the amount of toxic and corrosive halogen acid gas released is also extremely small. It also has good mechanical properties and has halogen-free, low-smoke, low-toxicity, flame-retardant Class A, and termite-proof functions.

[0042] 2. The communication unit in this utility model's accompanying flat cable includes a video cable, a communication optical cable, and a shielding layer, achieving faster transmission speeds and effectively meeting current elevator communication signal transmission requirements. The shielding layer also reduces external interference with the communication cable assembly, improving its anti-interference capabilities and minimizing signal distortion.

[0043] 3. The network cable set of the utility model adopts the shape of a flat cable. When the accompanying cable is bent, its deformation is small and it is not easy to break, thereby improving the bending and breaking resistance of the accompanying cable.

[0044] 4. The wire group of the present invention adopts a composite conductor structure. The soft copper conductor and the halogen-free low-smoke cross-linked polyolefin flame-retardant insulation outer sheath have strong tensile strength and flexibility. Through the combination with the flat halogen-free low-smoke cross-linked polyolefin flame-retardant outer protective layer, it can not only ensure that the flat cable has a stable structure and is not easy to break during the accompanying operation, but also ensure the stability of the network transmission signal and improve the complete operation capability of the flat cable line.

[0045] 5. The control line groups, communication line groups and steel wire ropes in the accompanying flat cable of the present invention all adopt a symmetrically arranged structure. When the accompanying cable is bent, the force is symmetrical and uniform, and it is not easy to be damaged or entangled.

[0046] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An elevator traveling flat cable, characterized in that: include: The flat outer protective layer is used to wrap the horizontally placed components inside the elevator's traveling flat cable; A control unit comprising a plurality of control wire groups arranged horizontally and parallelly on the left and right sides of the interior of the flat outer protective layer, wherein at least one pair of the control wire groups are symmetrically arranged on the left and right sides of the interior of the flat outer protective layer, and each control wire group comprises a central elastic filling strip and an insulated wire core twisted and arranged around the outer periphery of the filling strip; The communication unit includes a plurality of symmetrical communication line groups arranged horizontally and parallelly in the middle of the flat outer protective layer, each communication line group includes two video lines, a communication optical cable, a drainage line, a shielding layer, and an inner protective layer, the shielding layer wraps around the twisted video lines, communication optical cable, and drainage line, and the inner protective layer is extruded around the outer surface of the shielding layer; The steel wire ropes are symmetrically arranged on both sides of the communication unit, and the twist directions of the steel wire ropes on both sides are opposite.

2. The elevator traveling flat cable according to claim 1, characterized in that: The two video lines are twisted in parallel, and the communication optical cable and the drainage line are respectively located on both sides of the twisting point of the video lines.

3. The elevator traveling flat cable according to claim 1, characterized in that: Each control wire group includes 5 insulated wire cores, and the insulated wire cores include a plurality of twisted annealed fine copper wires and an outer extruded halogen-free low-smoke cross-linked polyolefin flame-retardant insulation layer.

4. The elevator traveling flat cable according to claim 1, characterized in that: The control wire groups on the left and right sides of the flat outer protective layer are symmetrically arranged along the flat direction, with opposite twisting directions, and the total number is an even number.

5. The elevator traveling flat cable according to claim 1, characterized in that: The shielding layer is formed by wrapping and tightly wrapping an aluminum-plastic composite tape, and the inner protective layer extruded on the outer surface of the shielding layer is a circular inner protective layer.

6. The elevator traveling flat cable according to claim 1, characterized in that: The steel wire ropes are aviation steel wire ropes, and the symmetrically arranged aviation steel wire ropes are twisted in opposite directions.

7. The elevator traveling flat cable according to claim 1, characterized in that: The center of the video cable is a soft copper conductor wire, and the outer surface of the soft copper conductor is extruded with a halogen-free low-smoke cross-linked polyolefin flame retardant insulation layer.

8. The elevator traveling flat cable according to claim 1, characterized in that: The control unit in the flat outer protective layer includes three groups of control wires located on the left side of the flat outer protective layer and three groups of control wires located on the right side of the flat outer protective layer.

9. The elevator traveling flat cable according to claim 1, characterized in that: The communication unit includes two symmetrical communication line groups in the middle of the flat outer protective layer.

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