CN201689735U - Low-smoke flame-retardant tensile cable special for monitoring of elevator - Google Patents
Low-smoke flame-retardant tensile cable special for monitoring of elevator Download PDFInfo
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- CN201689735U CN201689735U CN2010201846683U CN201020184668U CN201689735U CN 201689735 U CN201689735 U CN 201689735U CN 2010201846683 U CN2010201846683 U CN 2010201846683U CN 201020184668 U CN201020184668 U CN 201020184668U CN 201689735 U CN201689735 U CN 201689735U
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Abstract
The utility model belongs to the technical field of cables, in particular to a low-smoke flame-retardant tensile cable special for the monitoring of an elevator. The cable comprises a copper core conductor (10) and is characterized in that the outer layer of the copper core conductor (10) is sequentially coated by a polyethylene insulating layer (20), an aluminum foil mylar layer (30), a tinned copper wire braid (40), a fiber wire braid mesh layer (50) and a PVC coated layer (60). The utility model has the advantages of high cable tensile strength, good flexibility, high flame retardance and smoke suppression, rational performance ratio and suitability for the video transmission and signal control of a monitoring system of the elevator.
Description
Technical field
The utility model belongs to the cable technology field, particularly a kind of low-smoke flame-retardant pull tension cable special for elevator monitoring.
Background technology
Along with the development of society, the application of elevator is increasingly extensive, and 1999, GB50096-1999 " Code for design of dwelling houses " regulation: the height on 7 layers and above dwelling house or the resident family outdoor design of inlet floor identity distance ground surpassed the above dwelling house of 16m elevator must be set.Along with the appearance of intelligent high building groups of building of modern times, the elevator in hotel, restaurant and office building, apartment etc. needs television system to monitor elevator work and active situation, so that in time understand the ruuning situation of elevator; When Lift out of order, also can make rescuer in time understand the situation of elevator trapped personnel, thereby formulate the scheme of rescuing.
That elevator requires is safe and reliable, transfer efficiency is high, leveling accuracy and ride comfort etc., owing to will move up and down frequently, the elevator monitoring line also needs with elevator lifting repeatedly, and the elevator monitoring line just need have stronger tensile strength and flexibility, and restrictive coating should have percentage elongation preferably.
Traditional pvc sheath cable, in case breaking out of fire, cable fire can produce a large amount of dense smokes; make rescue work be difficult to carry out; personnel usually can be smoked by smog and suffocate, and the acid corrosion gas that discharges out simultaneously (HCl gas) also can cause the equipment consequential damages.Ignition of cable prolongs the fire incident that combustion becomes, generally have the intensity of a fire violent, spread fast, put out characteristics such as difficulty, loss are great, not only directly burn a large amount of cables and equipment, and repair time is long, the direct and consequential damage that is caused is all very big, common means of fire generally can not be as stoping cable fire to prolong the essential measure of combustion.Building such as hotel, restaurant and office building, apartment etc. that elevator is installed are crowded usually, and fireproofing is very important, and this just requires the good fire-retardant and smoke suppressing of elevator monitoring cable tool.
Traditional elevator monitoring cable often can not satisfy above-mentioned whole requirement, or exists the high problem of cost, and based on the demand, the inventor provides " a kind of low-smoke flame-retardant pull tension cable special for elevator monitoring ".
The utility model content
The utility model at above-mentioned the deficiencies in the prior art technical problem to be solved is: a kind of low-smoke flame-retardant pull tension cable special for elevator monitoring is provided.
The utility model by copper core conductor, polyethylene insulation, aluminium foil wheat draw, tinned wird braiding, filament mesh grid, PVC lining from inside to outside, combine this six parts axis coinciding layer by layer.In the middle of mesh grid of cable filament and PVC coating, be symmetrical arranged two and strengthen the stretching resistance steel wire rope.Characteristics such as this cable has that tensile strength height, flexibility are good, flame-retardant smoke inhibition performance excellence, strong interference immunity, cost performance are reasonable.
Cable tinned wird braid installs the filament mesh grid outward additional, in the middle of mesh grid of cable filament and PVC coating, be symmetrical arranged two reinforcement stretching resistance steel wire ropes simultaneously, the PVC lining relies on the interaction of formula materials in addition, makes cable possess excellent resistance to tension thereby have stronger tensile strength under the condition of the good percentage elongation of maintenance.
Cable adopts tinned wird braiding external shield, is aided with the aluminium foil wheat again and draws, and has good interference free performance.
Above-mentioned cable special for elevator monitoring copper core conductor, polyethylene insulation, aluminium foil wheat are drawn, tinned wird braiding, filament mesh grid from inside to outside, combination layer by layer from inside to outside, combination layer by layer, axis coinciding.Install polyvinyl chloride lining additional and strengthen the stretching resistance steel wire rope and carry out synchronously, before extruding, pvc material needs preheating (drying), temperature is controlled to be 60～70 ℃ (warm-up times should above 8 minutes), temperature roughly is set as follows in the extrusion: 130 ℃ of feed zones, 150 ℃ in heating 1 district, 155 ℃ in heating 2 districts, 160 ℃ in heating 3 districts, 165 ℃ in head district will strengthen the stretching resistance steel wire rope and coat with other structure when extruding.
The beneficial effects of the utility model are:
This cable tensile strength height, flexibility is good, and tool is the flame-retardant smoke inhibition performance preferably, and cost performance is reasonable, is suitable for the video transmission and the signal controlling of elevator monitoring system.Have following characteristics:
1). cable tinned wird braid installs the filament mesh grid outward additional, in the middle of mesh grid of cable filament and PVC coating, be symmetrical arranged two reinforcement stretching resistance steel wire ropes simultaneously, the PVC lining relies on the interaction of formula materials in addition, makes cable possess excellent resistance to tension thereby have stronger tensile strength under the condition of the good percentage elongation of maintenance.
2). cable adopts tinned wird braiding external shield, is aided with the aluminium foil wheat again and draws, and has good interference free performance.
3). the low-smoke and flame retardant prescription is adopted in this cable outer layer PVC lining, has good flame-retardant smoke inhibition characteristic.
Description of drawings
Fig. 1 is an internal structure schematic diagram of the present utility model;
Description of reference numerals:
10, copper core conductor 20, polyethylene layer 30, aluminium foil wheat are drawn layer
40, tinned wird braid 50, filament woven mesh layer 60, PVC coating
70, strong stretching resistance steel wire rope
Embodiment
Below in conjunction with example the utility model is described further:
In Fig. 1, a kind of low-smoke flame-retardant pull tension cable special for elevator monitoring comprises copper core conductor 10, and copper core conductor 10 skins draw layer 30, tinned wird braid 40, filament woven mesh layer 50, PVC coating 60 to coat successively by polyethylene layer 20, aluminium foil wheat.
In the present embodiment, be symmetrical arranged two in the middle of filament woven mesh layer 50 and the PVC coating 60 and strengthen stretching resistance steel wire rope 70.
The processing stranding:
1, the copper core is carried out wire drawing
2, with described wire drawing copper annealing, and strand is made heart yearn
3, install polyethylene insulation additional
4, coating the aluminium foil wheat draws
5, install tinned wird braiding, filament braiding additional
6, install polyvinyl chloride lining and strengthen the stretching resistance steel wire rope and carry out synchronously additional, polyvinyl chloride material grain is extruded preceding preheating (drying) 10 minutes, preheat temperature is set at 60 ℃, temperature is set as follows in the extrusion: 130 ℃ of feed zones, 150 ℃ in heating 1 district, 155 ℃ in heating 2 districts, 160 ℃ in heating 3 districts, 165 ℃ in head district will strengthen the stretching resistance steel wire rope and coat with other structure when extruding, make a kind of low-smoke flame-retardant pull tension cable special for elevator monitoring of the utility model.
Regulation according to GB/T 8815-2008 detects sheath material, and performance is as follows:
1 hot strength 28Mpa
2 fracture elongation strains 270%
3 thermal change types 30%
Heat-stable time 92min in the time of 5200 ℃
Specific insulation 7.4 * 10 in the time of 620 ℃
13Ω .m
7 dielectric strength 25MV/m
8 heat aging performances (100 ± 2 ℃ of 168h)
Aging after-drawing intensity 24Mpa
Hot strength rate of change 14.2%
The fracture elongation strain 245% of aging back
The maximum rate of change 9% of fracture elongation strain
Heat ageing mass loss 2.0g/m
2
The finished cable test:
1. after finished cable wore out in 100 ℃ * 7 days, the bonding degree of different parts is checked: excellent
2.3500 lie prostrate dielectric strength inspection in 5 minutes: qualified
3. frame propagation test carries out according to IEC60332-1: high flame retardant.
The above, it only is the preferred embodiment of a kind of low-smoke flame-retardant pull tension cable special for elevator monitoring of the utility model, be not that technical scope of the present utility model is imposed any restrictions, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model above any trickle modification, equivalent variations and modification that embodiment did.
Claims (2)
1. low-smoke flame-retardant pull tension cable special for elevator monitoring, comprise copper core conductor (10), it is characterized in that: described copper core conductor (10) is outer to draw layer (30), tinned wird braid (40), filament woven mesh layer (50), PVC coating (60) to coat successively by polyethylene layer (20), aluminium foil wheat.
2. according to the described a kind of low-smoke flame-retardant pull tension cable special for elevator monitoring of claim 1, it is characterized in that being symmetrical arranged two reinforcement stretching resistance steel wire ropes (70) in the middle of described filament woven mesh layer (50) and the PVC coating (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201846683U CN201689735U (en) | 2010-05-05 | 2010-05-05 | Low-smoke flame-retardant tensile cable special for monitoring of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201846683U CN201689735U (en) | 2010-05-05 | 2010-05-05 | Low-smoke flame-retardant tensile cable special for monitoring of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689735U true CN201689735U (en) | 2010-12-29 |
Family
ID=43378015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201846683U Expired - Fee Related CN201689735U (en) | 2010-05-05 | 2010-05-05 | Low-smoke flame-retardant tensile cable special for monitoring of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689735U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298042A (en) * | 2016-08-12 | 2017-01-04 | 杭州兴发传输设备有限公司 | A kind of bunched cable being suitable to life outdoor videos monitoring application |
| CN108399966A (en) * | 2018-04-24 | 2018-08-14 | 深圳宝兴电线电缆制造有限公司 | Tension resist bending high speed data transmission line |
-
2010
- 2010-05-05 CN CN2010201846683U patent/CN201689735U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298042A (en) * | 2016-08-12 | 2017-01-04 | 杭州兴发传输设备有限公司 | A kind of bunched cable being suitable to life outdoor videos monitoring application |
| CN106298042B (en) * | 2016-08-12 | 2017-11-07 | 杭州兴发科技股份有限公司 | A kind of bunched cable that application is monitored suitable for life outdoor videos |
| CN108399966A (en) * | 2018-04-24 | 2018-08-14 | 深圳宝兴电线电缆制造有限公司 | Tension resist bending high speed data transmission line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20190505 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |