CN208655281U - The netted split fibre filling tape Split Down gasket for packing of PP - Google Patents
The netted split fibre filling tape Split Down gasket for packing of PP Download PDFInfo
- Publication number
- CN208655281U CN208655281U CN201821591403.8U CN201821591403U CN208655281U CN 208655281 U CN208655281 U CN 208655281U CN 201821591403 U CN201821591403 U CN 201821591403U CN 208655281 U CN208655281 U CN 208655281U
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- fixedly connected
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- tensile
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Ropes Or Cables (AREA)
Abstract
The utility model discloses a kind of netted split fibre filling tape Split Down gasket for packings of PP, it is related to field of cable technology, the netted split fibre filling tape Split Down gasket for packing of the PP, including mineral wool rope ontology, the mineral wool rope ontology includes cotton core, the first tensile layer, insulating layer, first thermal insulation layer, the first fireprotection layer and reinforces rope, the outer surface of the cotton core is fixedly connected with the inner surface of the first tensile layer, and the outer surface of first tensile layer is fixedly connected with the inner surface of insulating layer.The netted split fibre filling tape Split Down gasket for packing of the PP; one side protective layer can make mineral wool rope ontology during carrying and use; reduce the abrasion of mineral wool rope ontology; another aspect protective layer can make mineral wool rope ontology in the case where long-term place without using occurring corroding and wearing; internal structure is still intact; increase the service life of mineral wool rope ontology, secondly the first tensile layer can increase the tensile strength of mineral wool rope ontology, and furthermore multiple ropes of reinforcing can increase the intensity of cotton cord ontology.
Description
Technical field
The utility model relates to field of cable technology, specially a kind of netted split fibre filling tape Split Down gasket for packing of PP.
Background technique
Cotton cord is a kind of rope, is generally compiled by machine.There are 8 bursts of establishments, 16 bursts of establishments, 32 bursts of establishments, 48 bursts of establishments, cotton cord
Mainly it is made by linen-cotton, and in cable production, cotton cord filling may insure that cable has preferable rounding in the cable
Degree, can increase the tensile strength of cable, and stablize the insulated wire cores relative position in cable.
One kind disclosed in 206456044 U of Chinese utility model patent ublic specification of application CN has anti-flammability
Cotton cord, this has the cotton cord of anti-flammability, although by rubber inner core, improving the elastic strength of cotton cord, passing through rubber inner core
On offer air hole, keep the gas permeability of cotton cord preferable, reduce the dampness situation of cotton cord, still, this has the cotton cord of anti-flammability,
Flame retardant effect is not good enough, and tension effect is general.
Currently, the existing cotton cord for CABLE MATERIALS, tension effect is general, and anti-flammability is bad, and waterproof effect is poor, uses
Inconvenience is unfavorable for promoting the use of.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of netted split fibre filling tape Split Down filling of PP
Rope, solves the existing cotton cord for CABLE MATERIALS, tension effect is general, and anti-flammability is bad, and waterproof effect is poor, using not
Just, it is unfavorable for the problem of promoting the use of.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs:
A kind of netted split fibre filling tape Split Down gasket for packing of PP, including mineral wool rope ontology；
The mineral wool rope ontology includes cotton core, the first tensile layer, insulating layer, first thermal insulation layer, the first fireprotection layer and reinforcement
Rope；
The outer surface of the cotton core is fixedly connected with the inner surface of the first tensile layer, the outer surface of first tensile layer with
The inner surface of insulating layer is fixedly connected, and the outer surface of the insulating layer is fixedly connected with the inner surface of first thermal insulation layer, and described
The outer surface of one thermal insulation layer is fixedly connected with the inner surface of the first fireprotection layer, outer surface and the reinforcement rope of first fireprotection layer
Lower end is fixedly connected, no less than eight, the reinforcement rope, and multiple reinforcement ropes spiral in the shape of a spiral to be arranged in the first fireprotection layer
Outer surface；
The reinforcement rope includes strengthening core, the second tensile layer and the second fireprotection layer, the outer surface of the strengthening core and second
The inner surface of tensile layer is fixedly connected, and the outer surface of second tensile layer is fixedly connected with the inner surface of the second fireprotection layer, institute
The outer surface for stating the second fireprotection layer is fixedly connected with wearing layer；
The inside of first tensile layer opens up fluted, and the inside of the groove is fixedly connected with elastic stretching item, institute
The inside for stating elastic stretching item is fixedly connected with transversal stretching item, and the transversal stretching item has multiple, multiple transversal stretchings
Item is equidistantly fixedly mounted on the inside of elastic stretching item；
First fireprotection layer includes the first flame-retardant layer, the second flame-retardant layer and second thermal insulation layer, first flame-retardant layer
Outer surface is fixedly connected with the inner surface of second thermal insulation layer, the inner surface of the outer surface of the second thermal insulation layer and the second flame-retardant layer
It is fixedly connected.
Optionally, the first thermal insulation layer is polyurethane foam thermal insulation layer；
The strengthening core is dustless rock wool strengthening core.
Optionally, the upper end for reinforcing rope is fixedly connected with matcoveredn；
The outer surface of the protective layer is fixedly connected with waterproof and anticorrosion layer.
Optionally, the both ends of the transversal stretching item extend through in the middle part of the both ends of elastic stretching item；
The both ends of the transversal stretching item are fixedly connected with the both ends inner wall of the first tensile layer respectively.
Optionally, first flame-retardant layer is light magnesium oxide flame-retardant layer；
Second flame-retardant layer is fire-retardant glass fiber belt.
Optionally, second fireprotection layer is fire prevention clay；
The second thermal insulation layer is vacuum heat-insulating layer.
Optionally, the transversal stretching item is rubber telescopic strap；
The elastic stretching item uses thermoplastic polyurethane elastomer rubber material.
Optionally, the outer surface of the cotton core is fixedly connected by adhesive layer with the inner surface of the first tensile layer；
The adhesive layer is epoxy resin adhesive layer.
Optionally, the inside of second tensile layer is fixedly connected with tension rope；
The tension rope has multiple.
Optionally, the protective layer is fixedly mounted on the outer surface of mineral wool rope ontology；
The waterproof and anticorrosion layer is KCM waterproof antiseptic wearproof layer.
(3) beneficial effect
The utility model provides a kind of netted split fibre filling tape Split Down gasket for packing of PP, have it is following the utility model has the advantages that
(1), the netted split fibre filling tape Split Down gasket for packing of the PP, one side protective layer can be such that mineral wool rope ontology is removing
During fortune and use, the abrasion of mineral wool rope ontology is reduced, another aspect protective layer can be such that mineral wool rope ontology puts for a long time
It sets not using and occur in the case where corroding and wearing, internal structure is still intact, increases the service life of mineral wool rope ontology, next first
Tensile layer can increase the tensile strength of mineral wool rope ontology, and furthermore multiple ropes of reinforcing can increase the intensity of cotton cord ontology.
(2), the netted split fibre filling tape Split Down gasket for packing of the PP, one side first thermal insulation layer and the first fireprotection layer make rock
The flameproof effect of cotton cord ontology is more preferable, and on the other hand the second fireprotection layer can increase the fire protecting performance for reinforcing rope, secondly wearing layer
Can making reinforcement rope, the service life is longer, and furthermore elastic stretching item and transversal stretching item are used cooperatively, and have made the first tensile layer both
Power stretching in the transverse direction can be born, the power vertically stretched can also be born.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 is structure enlargement diagram at A in Fig. 1 of the utility model；
Fig. 3 is structure enlargement diagram at B in Fig. 1 of the utility model；
Fig. 4 is structure enlargement diagram at C in Fig. 1 of the utility model.
In figure: 1- mineral wool rope ontology, 101- protective layer, 102- waterproof and anticorrosion layer, 2- cotton core, 201- adhesive layer, 3- first
Tensile layer, 4- insulating layer, 5- first thermal insulation layer, the first fireprotection layer of 6-, 7- reinforce restricting, 8- strengthening core, the second tensile layer of 9-,
901- tension rope, the second fireprotection layer of 10-, 11- wearing layer, 12- groove, 13- elastic stretching item, 14- transversal stretching item, 15-
One flame-retardant layer, the second flame-retardant layer of 16-, 17- second thermal insulation layer.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that the orientation of the instructions such as term " on ", "lower", "inner", "outside"
Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, term " setting ", " connected ", " connects " installation "
Connect ", the terms such as " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection；It can be machine
Tool connection；It can be directly connected, it can also be indirectly connected through an intermediary.For those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution:
A kind of netted split fibre filling tape Split Down gasket for packing of PP, including mineral wool rope ontology 1；
Mineral wool rope ontology 1 includes cotton core 2, the first tensile layer 3, insulating layer 4, first thermal insulation layer 5, the first fireprotection layer 6 and adds
Strong rope 7；
The outer surface of cotton core 2 is fixedly connected with the inner surface of the first tensile layer 3, the outer surface of the first tensile layer 3 and insulation
The inner surface of layer 4 is fixedly connected, and the first tensile layer 3 can increase the tensile strength of mineral wool rope ontology 1, the outer surface of insulating layer 4
It is fixedly connected with the inner surface of first thermal insulation layer 5, the inner surface of the outer surface of first thermal insulation layer 5 and the first fireprotection layer 6 is fixed to be connected
Connect, first thermal insulation layer 5 and the first fireprotection layer 6 keep the flameproof effect of mineral wool rope ontology 1 more preferable, the outer surface of the first fireprotection layer 6 with
The lower end for reinforcing rope 7 is fixedly connected, and reinforces no less than eight, rope 7, multiple ropes 7 of reinforcing can increase the intensity of cotton cord ontology 1, more
A reinforcement rope 7 spirals in the shape of a spiral is arranged in the outer surface of the first fireprotection layer 6；
Reinforcing rope 7 includes strengthening core 8, the second tensile layer 9 and the second fireprotection layer 10, and the outer surface of strengthening core 8 is anti-with second
The inner surface of layer 9 is drawn to be fixedly connected, the outer surface of the second tensile layer 9 is fixedly connected with the inner surface of the second fireprotection layer 10, and second
Fireprotection layer 10 can increase the fire protecting performance for reinforcing rope 7, and the outer surface of the second fireprotection layer 10 is fixedly connected with wearing layer 11, wear-resisting
Layer 11 can make reinforcement rope 7, and the service life is longer；
The inside of first tensile layer 3 opens up fluted 12, and the inside of groove 12 is fixedly connected with elastic stretching item 13, elasticity
The inside of tension bar 13 is fixedly connected with transversal stretching item 14, and elastic stretching item 13 and transversal stretching item 14 are used cooperatively, and makes
One tensile layer 3 can both bear power stretching in the transverse direction, can also bear the power vertically stretched, transversal stretching item 14 have it is multiple, it is more
A transversal stretching item 14 is equidistantly fixedly mounted on the inside of elastic stretching item 13；
First fireprotection layer 6 includes the first flame-retardant layer 15, the second flame-retardant layer 16 and second thermal insulation layer 17, the first flame-retardant layer 15
Outer surface is fixedly connected with the inner surface of second thermal insulation layer 17, the interior table of the outer surface of second thermal insulation layer 17 and the second flame-retardant layer 16
Face is fixedly connected.
A kind of optional technical solution as the utility model: first thermal insulation layer 5 is polyurethane foam thermal insulation layer；
Strengthening core 8 is dustless rock wool strengthening core, and the tensile resistance of dustless rock wool is good.
A kind of optional technical solution as the utility model: the upper end for reinforcing rope 7 is fixedly connected with matcoveredn 101, protects
Sheath 101 can make mineral wool rope ontology 1 during carrying and use, reduce the abrasion of mineral wool rope ontology 1, and protective layer
101 can make mineral wool rope ontology 1 in the case where long-term place without using occurring corroding and wearing, and internal structure is still intact,
Increase the service life of mineral wool rope ontology 1；
The outer surface of protective layer 101 is fixedly connected with waterproof and anticorrosion layer 102.
A kind of optional technical solution as the utility model: the both ends of transversal stretching item 14 extend through elastic stretching item
In the middle part of 13 both ends；
The both ends of transversal stretching item 14 are fixedly connected with the both ends inner wall of the first tensile layer 3 respectively, make transversal stretching item 14
That fixes between elastic stretching item 13 is stronger, and greater role plays a role.
A kind of optional technical solution as the utility model: the first flame-retardant layer 15 is light magnesium oxide flame-retardant layer；
Second flame-retardant layer 16 is fire-retardant glass fiber belt, and glass fiber heat-resistant is good, does not have shadow to intensity when temperature is up to 300 DEG C
It rings, can be used for heat-insulating material and fire-proof shield material.
A kind of optional technical solution as the utility model: the second fireprotection layer 10 is fire prevention clay；
Second thermal insulation layer 17 is vacuum heat-insulating layer, the good heat-insulation effect of vacuum heat-insulating layer.
A kind of optional technical solution as the utility model: transversal stretching item 14 is rubber telescopic strap；
Elastic stretching item 13 uses thermoplastic polyurethane elastomer rubber material.
A kind of optional technical solution as the utility model: the outer surface of cotton core 2 is anti-by adhesive layer 201 and first
The inner surface of layer 3 is drawn to be fixedly connected；
Adhesive layer 201 be epoxy resin adhesive layer, epoxide-resin glue (epoxy resin adhesive) generally refer to
Obtained adhesive, plybonding effect are good based on epoxy resin.
A kind of optional technical solution as the utility model: the inside of the second tensile layer 9 is fixedly connected with tension rope
901, the drawing effect of the second tensile layer 9 can be increased；
Tension rope 901 has multiple.
A kind of optional technical solution as the utility model: protective layer 101 is fixedly mounted on the appearance of mineral wool rope ontology 1
Face；
Waterproof and anticorrosion layer 102 is that KCM waterproof antiseptic wearproof layer KCM waterproof antiseptic wearproof layer is to be coated with KCM on the outside to prevent
Water anticorrosion antiwear over-glaze paint has excellent resistant to chemical etching, solvent resistant, waterproof antiwear performance.
In conclusion the netted split fibre filling tape Split Down gasket for packing of the PP, first thermal insulation layer 5 is that polyurethane foam is heat-insulated
Layer, hard polyurethane foam are to help using isocyanates and polyethers as primary raw material foaming agent, catalyst, fire retardant etc. are a variety of
It under the action of agent, is mixed by special equipment, through high molecular polymer made of high pressure painting foam-in-place, rigid poly urethanes bubble
Foam is a kind of novel synthetic material with heat preservation with water-proof function, and thermal coefficient is low, only 0.022~0.033W/ (m*K),
It is that thermal coefficient is minimum in current all thermal insulation materials, the first flame-retardant layer 15 is light magnesium oxide flame-retardant layer, and magnesia has height
Spend fireproof heat-insulating performance, specific gravity be 3.58 (25), fusing point be 2852 DEG C, 3600 DEG C of boiling point, fire retardant made of light magnesium oxide
Away from there is good flame retardant effect, the second fireprotection layer 10 is fire prevention clay, and fire prevention clay also known as organic fire prevention calking are with organic conjunction
It is bonding agent at resin, addition fireproof agent, filler etc. are formed through spreading.Fire prevention clay does not solidify for a long time, and plasticity is fine, both may be used
With fire-retardant, it is also ensured that the integral firmness for reinforcing rope 7 is higher, and elastic stretching item 13 uses thermoplastic polyurethane elastomer rubber
Glue material, TPU (Thermoplastic polyurethanes) entitled thermoplastic polyurethane elastomer rubber, is broadly divided into
It there are polyester-type and polyether-type, its hardness range wide (60HA-85HD), wear-resisting, oil resistant, transparent, elasticity is good.
It should be noted that in the present invention unless specifically defined or limited otherwise, fisrt feature is in the second spy
It can be that the first and second features directly contact or the first and second features are connect indirectly by intermediary "above" or "below" sign
Touching.Moreover, fisrt feature can be above the second feature " above ", " above " and " above " fisrt feature right above second feature or
Oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature " under ", " lower section "
" following " can be fisrt feature and be directly under or diagonally below the second feature, or is merely representative of first feature horizontal height and is less than
Second feature.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (10)
1. a kind of netted split fibre filling tape Split Down gasket for packing of PP, including mineral wool rope ontology (1), it is characterised in that:
The mineral wool rope ontology (1) includes cotton core (2), the first tensile layer (3), insulating layer (4), first thermal insulation layer (5), first anti-
Fire bed (6) and reinforcement rope (7)；
The outer surface of the cotton core (2) is fixedly connected with the inner surface of the first tensile layer (3), outside first tensile layer (3)
Surface is fixedly connected with the inner surface of insulating layer (4), the outer surface of the insulating layer (4) and the inner surface of first thermal insulation layer (5)
It is fixedly connected, the outer surface of the first thermal insulation layer (5) is fixedly connected with the inner surface of the first fireprotection layer (6), and described first is anti-
The outer surface of fire bed (6) is fixedly connected with the lower end for reinforcing rope (7), and the reinforcement rope (7) is no less than eight, multiple reinforcements
Rope (7) spirals in the shape of a spiral to be arranged in the outer surface of the first fireprotection layer (6)；
Reinforcement rope (7) includes strengthening core (8), the second tensile layer (9) and the second fireprotection layer (10), the strengthening core (8)
Outer surface is fixedly connected with the inner surface of the second tensile layer (9), the outer surface of second tensile layer (9) and the second fireprotection layer
(10) inner surface is fixedly connected, and the outer surface of second fireprotection layer (10) is fixedly connected with wearing layer (11)；
The inside of first tensile layer (3) opens up fluted (12), and the inside of the groove (12) is fixedly connected with flexible drawing
It stretches item (13), the inside of the elastic stretching item (13) is fixedly connected with transversal stretching item (14), the transversal stretching item (14)
There is multiple, the equidistant inside for being fixedly mounted on elastic stretching item (13) of multiple transversal stretching items (14)；
First fireprotection layer (6) includes the first flame-retardant layer (15), the second flame-retardant layer (16) and second thermal insulation layer (17), and described the
The outer surface of one flame-retardant layer (15) is fixedly connected with the inner surface of second thermal insulation layer (17), the appearance of the second thermal insulation layer (17)
Face is fixedly connected with the inner surface of the second flame-retardant layer (16).
2. the netted split fibre filling tape Split Down gasket for packing of PP according to claim 1, it is characterised in that:
The first thermal insulation layer (5) is polyurethane foam thermal insulation layer；
The strengthening core (8) is dustless rock wool strengthening core.
3. the netted split fibre filling tape Split Down gasket for packing of PP according to claim 1, it is characterised in that:
The upper end for reinforcing rope (7) is fixedly connected with matcoveredn (101)；
The outer surface of the protective layer (101) is fixedly connected with waterproof and anticorrosion layer (102).
4. the netted split fibre filling tape Split Down gasket for packing of PP according to claim 1, it is characterised in that:
The both ends of the transversal stretching item (14) extend through in the middle part of the both ends of elastic stretching item (13)；
The both ends of the transversal stretching item (14) are fixedly connected with the both ends inner wall of the first tensile layer (3) respectively.
5. the netted split fibre filling tape Split Down gasket for packing of PP according to claim 1, it is characterised in that:
First flame-retardant layer (15) is light magnesium oxide flame-retardant layer；
Second flame-retardant layer (16) is fire-retardant glass fiber belt.
6. the netted split fibre filling tape Split Down gasket for packing of PP according to claim 1, it is characterised in that:
Second fireprotection layer (10) is fire prevention clay；
The second thermal insulation layer (17) is vacuum heat-insulating layer.
7. the netted split fibre filling tape Split Down gasket for packing of PP according to claim 1, it is characterised in that:
The transversal stretching item (14) is rubber telescopic strap；
The elastic stretching item (13) uses thermoplastic polyurethane elastomer rubber material.
8. the netted split fibre filling tape Split Down gasket for packing of PP according to claim 1, it is characterised in that:
The outer surface of the cotton core (2) is fixedly connected by adhesive layer (201) with the inner surface of the first tensile layer (3)；
The adhesive layer (201) is epoxy resin adhesive layer.
9. the netted split fibre filling tape Split Down gasket for packing of PP according to claim 1, it is characterised in that:
The inside of second tensile layer (9) is fixedly connected with tension rope (901)；
The tension rope (901) has multiple.
10. the netted split fibre filling tape Split Down gasket for packing of PP according to claim 3, it is characterised in that:
The protective layer (101) is fixedly mounted on the outer surface of mineral wool rope ontology (1)；
The waterproof and anticorrosion layer (102) is KCM waterproof antiseptic wearproof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821591403.8U CN208655281U (en) | 2018-09-28 | 2018-09-28 | The netted split fibre filling tape Split Down gasket for packing of PP |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821591403.8U CN208655281U (en) | 2018-09-28 | 2018-09-28 | The netted split fibre filling tape Split Down gasket for packing of PP |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208655281U true CN208655281U (en) | 2019-03-26 |
Family
ID=65774737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821591403.8U Expired - Fee Related CN208655281U (en) | 2018-09-28 | 2018-09-28 | The netted split fibre filling tape Split Down gasket for packing of PP |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208655281U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117270133A (en) * | 2023-11-22 | 2023-12-22 | 江苏中天科技股份有限公司 | Flame-retardant optical unit, flame-retardant optical cable unit and combined flame-retardant optical cable |
-
2018
- 2018-09-28 CN CN201821591403.8U patent/CN208655281U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117270133A (en) * | 2023-11-22 | 2023-12-22 | 江苏中天科技股份有限公司 | Flame-retardant optical unit, flame-retardant optical cable unit and combined flame-retardant optical cable |
| CN117270133B (en) * | 2023-11-22 | 2024-02-20 | 江苏中天科技股份有限公司 | Flame-retardant optical unit, flame-retardant optical cable unit and combined flame-retardant optical cable |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20190928 |