CN211507170U - Environment-friendly special fireproof cable - Google Patents
Environment-friendly special fireproof cable Download PDFInfo
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- CN211507170U CN211507170U CN202020113344.4U CN202020113344U CN211507170U CN 211507170 U CN211507170 U CN 211507170U CN 202020113344 U CN202020113344 U CN 202020113344U CN 211507170 U CN211507170 U CN 211507170U
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Abstract
The utility model relates to an environmental protection special fireproof cable, which relates to the technical field of electric wires and cables and solves the problems of unstable performance and general heat-resisting effect of the cable, the cable comprises a cable core consisting of a plurality of conductors, a fire-resisting insulating layer is arranged outside the conductors, and a wrapping tape, a metal shielding layer, an armor layer and an outer sheath are arranged outside the fire-resisting insulating layer in sequence; be provided with a plurality of annular nylon frameworks along the axis direction of conductor between metallic shield and the armor, be fixed with the protection glue ring between the adjacent annular nylon framework, the inside cavity and the inside packing of protection glue ring have refractory material, and the week side of protection glue ring has heat-resisting parcel layer around making. Utilize annular nylon skeleton to support the protection rubber ring, improve the holistic toughness of cable core, utilize refractory material and heat-resistant wrapping layer to further strengthen heat-resisting fire-resistant effect, ensured the utility model discloses holistic stability and security, environmental protection more, the application is more extensive.
Description
Technical Field
The utility model belongs to the technical field of the wire and cable technique and specifically relates to an environmental protection special type fireproof cable is related to.
Background
Owing to the continuous rapid development of construction engineering to and people attach more and more importance to the environmental protection, the cable has heat-resisting, fire prevention, waterproof, performance requirements such as tensile more and more high, not only includes the sleeve pipe of conductor to present cable inside, still includes obturator and protective layer, with the performance reinforcing of guaranteeing the cable, adapts to different environment and place, and the filling layer need be guaranteed to reduce harmful substance when the conflagration breaing out and release as far as possible simultaneously.
In the prior art, chinese patent No. CN203552726U discloses a high temperature resistant cable, which includes a conductor twisted by multiple silver-plated single copper wires, an insulating layer made of fluoroplastic, and a protective layer supported by fluoroplastic, wherein a silver-plated copper wire mesh is further disposed between the insulating layer and the protective layer.
The above prior art solutions have the following drawbacks: the fluoroplastic has high temperature resistance, but has low rigidity, unstable performance and general heat-resistant effect, is difficult to use in long-distance transmission, and has a small application range.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide a fire resistance is high, comparatively environmental protection, can be applicable to a plurality of different environment, long service life's a special fireproof cable of environmental protection.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
an environment-friendly special fireproof cable comprises a cable core consisting of a plurality of conductors, wherein a fireproof insulating layer is arranged outside the conductors, and a wrapping tape, a metal shielding layer, an armor layer and an outer sheath are sequentially arranged outside the fireproof insulating layer on the plurality of conductors;
the metal shielding layer and the armor layer are provided with a plurality of annular nylon frameworks along the axis direction of the conductor, the adjacent annular nylon frameworks are fixedly provided with a protective rubber ring, the protective rubber ring is hollow and filled with a refractory material, and a heat-resistant wrapping layer is wound around the protective rubber ring.
Through adopting above-mentioned technical scheme, utilize insulating refractory layer, metallic shield layer, inner liner, armor and lag to carry out basic protection to the conductor, keep apart conductor and the heat exchange of external high temperature effectively, reduce the influence of external high temperature to the conductor, utilize annular nylon skeleton to support the protection rubber ring, improve the holistic toughness of cable core, utilize refractory material and heat-resistant wrapping layer further to strengthen heat-resisting fire-resistant effect, ensured the utility model discloses holistic stability and security, environmental protection more, application is more extensive.
The present invention may be further configured in a preferred embodiment as: the refractory material is ceramic chips.
Through adopting above-mentioned technical scheme, the ceramic chip has lower heat conductivity, has reduced the heat-conduction between external high temperature and the conductor, plays better guard action to the conductor.
The present invention may be further configured in a preferred embodiment as: the heat-resistant wrapping layer is made of glass ribbon woven mesh.
By adopting the technical scheme, the glass ribbon woven mesh is an inorganic substance, has stronger heat resistance, generates less harmful substances after combustion and is more environment-friendly.
The present invention may be further configured in a preferred embodiment as: and annular slots for inserting the protective rubber rings are formed in the two sides of the annular nylon framework.
Through adopting above-mentioned technical scheme, utilize the grafting adaptation of protection rubber ring and annular slot for joint strength between protection rubber ring and the annular nylon skeleton is more stable.
The present invention may be further configured in a preferred embodiment as: the distance between the adjacent annular nylon frameworks is 10-12 cm.
By adopting the technical scheme, the annular nylon skeleton is convenient to assemble on the periphery of the cable core in the production process, the using amount of the protective rubber ring is reduced, the environment is protected, and the stability of the protective rubber ring between the annular nylon skeletons can be guaranteed.
The present invention may be further configured in a preferred embodiment as: the protective rubber ring is made of rubber materials.
Through adopting above-mentioned technical scheme, the structural strength and the toughness of rubber are stronger, play better guard action.
The present invention may be further configured in a preferred embodiment as: the armor layer is formed by wrapping a stainless steel band.
Through adopting above-mentioned technical scheme, the stainless steel strip has better protection and isolation effect for cable body performance is more stable.
The present invention may be further configured in a preferred embodiment as: the outer sheath is formed by extruding low-smoke halogen flame-retardant polyethylene.
Through adopting above-mentioned technical scheme, oversheath plays the guard action to inside conductor on the one hand, plays the constraint effect to the armor, has better insulating ability and heat-resisting ability, utilizes the oversheath that low smoke halogen flame retardant polyethylene made more environmental protection, reduces harmful substance's production.
To sum up, the utility model discloses a following at least one kind benefits technological effect:
1. the conductor is subjected to basic protection by utilizing the fire-resistant insulating layer, the metal shielding layer, the inner lining layer, the armor layer and the protective sleeve, so that heat exchange between the conductor and external high temperature is effectively isolated, and the influence of the external high temperature on the conductor is reduced;
2. the heat-resisting layer that the protection that utilizes rubber to make is glued ring, ceramic chip, glass silk ribbon woven mesh and is formed further strengthens the utility model discloses a heat-resisting fire-resistant effect has ensured the stability and the security of conductor to produce less harmful substance, environmental protection more after ceramic chip and the burning of glass silk ribbon woven mesh.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals: 1. a conductor; 2. a refractory insulating layer; 3. wrapping a tape; 4. a metal shielding layer; 5. an armor layer; 6. an outer sheath; 7. an annular nylon skeleton; 8. a protective rubber ring; 9. a refractory material; 10. a heat-resistant wrapping layer; 11. an annular slot.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses an environmental protection special type fireproof cable, include the cable core of constituteing jointly by a plurality of conductors 1. And the cable core is utilized to realize the basic conductive transmission function.
The outside of conductor 1 is provided with fire insulation layer 2, and a plurality of conductors 1 have set gradually around band 3 in fire insulation layer 2's outside jointly, and around band 3 adopts the winding of three-layer mica tape to form. The basic insulating property of the conductor 1 is realized by the fire-resistant insulating layer 2, the material of the wrapping tape 3 is more stable, and the insulating property and the moisture resistance of the cable are enhanced by the three-layer fire-resistant mica tape structure.
Have set gradually metallic shield 4, armor 5, oversheath 6 around 3 outsides in the band, metallic shield 4 adopts is the copper wire mesh grid, and armor 5 adopts the stainless steel band parcel to form, and oversheath 6 adopts the crowded package of low smoke halogen fire-retardant polyethylene to form. Utilize structural strength and the shielding capacity of metal shielding layer 4 and 5 guarantee cables of armor, the stainless steel band has better protection and isolation for cable body performance is more stable, and 6 sides of oversheath play the guard action to inside conductor 1, play the constraint effect to armor 5, have better insulating ability and heat-resisting ability, utilize the fire-retardant polyethylene of low smoke and halogen to make more environmental protection, reduce harmful substance's production.
A plurality of annular nylon frameworks 7 are arranged between the metal shielding layer 4 and the armor layer 5 along the axis direction of the conductor 1, the distance between every two adjacent annular nylon frameworks 7 is 10-12cm, a protective rubber ring 8 is fixed between every two adjacent annular nylon frameworks 7, the protective rubber ring 8 is made of rubber materials, the protective rubber ring 8 is hollow, the interior of the protective rubber ring 8 is filled with a refractory material 9, and the refractory material 9 is ceramic chips. Utilize protection rubber ring 8 to place the ceramic chip, the ceramic chip has lower heat conductivity, the heat-conduction between external high temperature and the conductor 1 has been reduced, play better heat-resisting guard action to conductor 1, utilize annular nylon skeleton 7 to support protection rubber ring 8, annular nylon skeleton 7 that adjacent interval is 10-12cm is convenient for the assembly of annular nylon skeleton 7 in cable core week side in the production process, reduce the quantity of protection rubber ring 8, environmental protection more, and can ensure the stability of protection rubber ring 8 between annular nylon skeleton 7.
A heat-resistant wrapping layer 10 is wound around the periphery of the protective rubber ring 8, and a glass ribbon mesh grid is adopted as the heat-resistant wrapping layer 10. The glass ribbon woven mesh is an inorganic substance, has strong heat resistance, generates less harmful substances after combustion, and is more environment-friendly.
The implementation principle of the embodiment is as follows:
utilize insulating layer 2, metallic shield 4, the inner liner, armor 5 and lag carry out basic protection to conductor 1, keep apart conductor 1 and external high temperature heat exchange effectively, utilize three-layer mica tape guarantee conductor 1's high temperature resistance, reduce the influence of external high temperature to conductor 1, the protective rubber ring 8 that utilizes rubber to make strengthens the guard action to conductor 1, improve the holistic toughness of cable core, the improvement utilizes ceramic fragment and glass silk area mesh grid to further strengthen heat-resisting fire-resistant effect, ensured the utility model discloses holistic stability and security, burning back ceramic fragment, glass silk area mesh grid, and make oversheath 6 by low smoke and halogen fire-retardant polyethylene and produce less harmful substance, environmental protection more, application field is more extensive.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The environment-friendly special fireproof cable is characterized by comprising a cable core consisting of a plurality of conductors (1), wherein a fireproof insulating layer (2) is arranged outside the conductors (1), and a wrapping tape (3), a metal shielding layer (4), an armor layer (5) and an outer sheath (6) are arranged outside the fireproof insulating layer (2) of the conductors (1) in sequence;
the metal shielding layer (4) and along between armor (5) the axis direction of conductor (1) is provided with a plurality of annular nylon skeleton (7), and is adjacent be fixed with protection rubber ring (8) between annular nylon skeleton (7), the inside cavity and the inside packing of protection rubber ring (8) have refractory material (9), the week side of protection rubber ring (8) has heat-resisting parcel layer (10) around the system.
2. An environmental protection special type fireproof cable according to claim 1, wherein the fire resistant material (9) is ceramic chips.
3. An environment-friendly special fireproof cable according to claim 1, wherein the heat-resistant covering (10) is a woven mesh of glass fiber tape.
4. The special environment-friendly fireproof cable according to claim 1, wherein the two sides of the annular nylon framework (7) are provided with annular slots (11) for inserting the protective rubber rings (8).
5. An environment-friendly special fireproof cable according to claim 4, wherein the distance between adjacent annular nylon frameworks (7) is 10-12 cm.
6. An environment-friendly special fireproof cable according to claim 1, wherein the protective rubber ring (8) is made of rubber material.
7. An environment-friendly special fireproof cable according to claim 1, wherein the armor layer (5) is wrapped by stainless steel strips.
8. An environment-friendly special fireproof cable according to claim 1, wherein the outer sheath (6) is extruded from low-smoke halogen flame-retardant polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020113344.4U CN211507170U (en) | 2020-01-17 | 2020-01-17 | Environment-friendly special fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020113344.4U CN211507170U (en) | 2020-01-17 | 2020-01-17 | Environment-friendly special fireproof cable |
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| Publication Number | Publication Date |
|---|---|
| CN211507170U true CN211507170U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020113344.4U Active CN211507170U (en) | 2020-01-17 | 2020-01-17 | Environment-friendly special fireproof cable |
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| CN (1) | CN211507170U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908524A (en) * | 2021-02-04 | 2021-06-04 | 湖南至和电缆科技有限公司 | Composite fire-resistant fireproof cable and preparation method thereof |
| CN112908538A (en) * | 2021-02-04 | 2021-06-04 | 湖南至和电缆科技有限公司 | High-temperature-resistant fireproof cable and preparation method thereof |
-
2020
- 2020-01-17 CN CN202020113344.4U patent/CN211507170U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908524A (en) * | 2021-02-04 | 2021-06-04 | 湖南至和电缆科技有限公司 | Composite fire-resistant fireproof cable and preparation method thereof |
| CN112908538A (en) * | 2021-02-04 | 2021-06-04 | 湖南至和电缆科技有限公司 | High-temperature-resistant fireproof cable and preparation method thereof |
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