CN211828223U

CN211828223U - Flame-retardant waterproof cable

Info

Publication number: CN211828223U
Application number: CN202020907306.6U
Authority: CN
Inventors: 蔡华聪
Original assignee: Hangzhou Yanqing Technology Co ltd
Current assignee: Hangzhou Yanqing Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-10-30
Anticipated expiration: 2030-05-26

Abstract

The utility model provides a, a fire-retardant waterproof cable, including the cable body, the cable body is by axis sinle silk, wrap up in epaxial first decompression layer of axis sinle silk, wrap up in the second decompression layer on first decompression layer, inlay the outer loop sinle silk of dress in the second decompression layer, wrap up the outside inoxidizing coating on the second decompression layer and constitute jointly, all contain a plurality of pressure reducing component in first decompression layer and the second decompression layer. Utilize the utility model discloses a fire-retardant waterproof cable of technical scheme preparation is provided with pressure reducing component inside the cable, and overall structure is last comparatively firm possesses fabulous toughness simultaneously, when the cable receives the heavy-load, can offset pressure through pressure reducing component's smiling deformation, and the inner structure of protection cable is not destroyed, simultaneously the utility model discloses in, be provided with the flame retardant coating in the inoxidizing coating outside the wire core, be provided with waterproof layer and fire-retardant layer outside the cable, possess the fire resistance when playing certain water-proof effects, more safety and reliable.

Description

Flame-retardant waterproof cable

Technical Field

The utility model belongs to the technical field of the cable, especially, relate to a fire-retardant waterproof cable.

Background

Cable is a generic term for optical cables, electrical cables, and the like. The cable has many purposes, is mainly used for controlling installation, connecting equipment, transmitting power and other multiple functions, and is a common and indispensable object in daily life.

After the 90 s of the 20 th century, with the continuous development of scientific technology, the requirements for the performance of cables are continuously improved, such as the following: CN210443306U discloses a can prevent fire-retardant cable of soaking, it improves overall structure steadiness to add to be equipped with the supporting member in the cable, however this kind of structure is firm, but lack toughness, because the variety and the complexity in cable use place, the cable receives very easily when using tramples or even rolling of heavy object, this kind of supporting member is when receiving powerful pressure, because lack the easy inner structure that directly destroys whole cable of toughness, consequently, need improve it, increase the toughness of structure in the stable structure, thereby the life of extension cable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem, a fire-retardant waterproof cable has been designed.

Realize above-mentioned purpose the technical scheme of the utility model is, a fire-retardant waterproof cable, including the cable body, the cable body is by axis sinle silk, wrap up in epaxial first decompression layer of axis sinle silk, wrap up second decompression layer on first decompression layer, inlay the outer loop sinle silk of dress in the second decompression layer, wrap up the common constitution of outside inoxidizing coating on the second decompression layer, all contain a plurality of pressure reducing components in first decompression layer and the second decompression layer, pressure reducing components include the buffering frame, locate the top support spoke of buffering frame topside both sides, locate the bottom sprag spoke of buffering frame base both sides and locate the connection spoke between two adjacent buffering frames.

First decompression layer is still including the interior cushion collar of cover outside locating axis sinle silk, decompression subassembly in the first decompression layer is ring form equidistance around the outside of cushion collar including and arranges and the specification is all the same.

Be provided with the adapter sleeve between the pressure reducing unit of first decompression layer and the pressure reducing unit of second decompression layer, the outer cushion collar of adapter sleeve is still located including the cover to the second decompression layer, pressure reducing unit in the second decompression layer is ring form equidistance between adapter sleeve and outer cushion collar and arranges and the specification of a dimension is the same all.

The number of pressure relief assemblies in the first pressure relief layer is at least 8 and the number of pressure relief assemblies in the second pressure relief layer is at least 6.

The buffer frame is hexagonal, and the included angle a between the top supporting spokes and the top edge of the buffer frame is smaller than the included angle b between the bottom supporting spokes and the bottom edge of the buffer frame.

The middle shaft wire core is arranged in the inner buffer sleeve and is coaxial with the inner buffer sleeve, and the outer ring wire core is arranged in the buffer frame of the pressure reducing assembly in the second pressure reducing layer and is coaxial with an inscribed circle of the buffer frame.

And the gaps of the first pressure reducing layer and the second pressure reducing layer are filled with heat insulating materials, and the protecting sleeves are sleeved outside the center shaft wire core and the outer ring wire core.

The protective sleeve is composed of an insulating layer wrapped on the wire core, an elastic layer wrapped on the insulating layer and a fireproof layer wrapped on the elastic layer.

The external protective layer is composed of a waterproof layer wrapped outside the second pressure reducing layer, a shielding layer wrapped outside the waterproof layer, a flame retardant layer wrapped outside the shielding layer and a halogen-free layer wrapped outside the flame retardant layer.

The thickness of waterproof layer is 5mm at least, the shielding layer is the copper mesh weaving layer, the thickness of fire retardant layer is 8mm at least.

Utilize the utility model discloses a fire-retardant waterproof cable of technical scheme preparation is provided with pressure reducing component inside the cable to buffering frame in the pressure reducing component is the hexagon, still is provided with the support spoke and connects the spoke on every side, and overall structure is last comparatively firm to possess fabulous toughness simultaneously, and when the cable received the heavy pressure, can offset pressure through pressure reducing component's smiling deformation, and the inner structure of protection cable is not destroyed, simultaneously the utility model discloses in, be provided with the flame retardant coating in the inoxidizing coating outside the line core, be provided with waterproof layer and fire-retardant layer outside the cable, possess the fire resistance when playing certain waterproof role, more safe and reliable.

Drawings

FIG. 1 is a cable structure view of embodiment 1;

FIG. 2 is a view showing the structure of a first pressure reducing layer;

FIG. 3 is a protective cover construction;

fig. 4 is a cable structure diagram of embodiment 2.

In the figure: 1. a central axis wire core; 2. a first pressure reduction layer; 3. a second pressure reduction layer; 4. an outer ring wire core; 5. a buffer frame; 6. a top support spoke; 7. a bottom support spoke; 8. connecting spokes; 9. an inner buffer sleeve; 10. connecting sleeves; 11. an outer cushion collar; 12. a thermal insulation material; 13. a protective sleeve; 14. an insulating layer; 15. an elastic layer; 16. a fire barrier layer; 17. a waterproof layer; 18. a shielding layer; 19. a flame retardant layer; 20. no halogen layer.

Detailed Description

The following detailed description of the embodiments of the present invention is made in conjunction with the accompanying drawings, as shown in fig. 1, 2, and 3, a flame-retardant waterproof cable, including a cable body, the cable body is composed of a central axis core 1, a first pressure reducing layer 2 wrapped on the central axis core 1, a second pressure reducing layer 3 wrapped on the first pressure reducing layer 2, an outer ring core 4 embedded in the second pressure reducing layer 3, and an external protective layer wrapped on the second pressure reducing layer 3, wherein a plurality of pressure reducing components are contained in the first pressure reducing layer 2 and the second pressure reducing layer 3, and the pressure reducing components include a buffer frame 5, top support spokes 6 disposed on both sides of the buffer frame 5, bottom support spokes 7 disposed on both sides of the bottom edge of the buffer frame 5, and connecting spokes 8 disposed between two adjacent buffer frames 5.

In order to deal with complicated changeable surrounding environment, the utility model discloses in add in the cable and established first decompression layer 2 and second decompression layer 3, simultaneously, carry out regular rational arrangement with the inside sinle silk of cable: a middle shaft wire core 1 is arranged on a middle shaft line of the cable, and an outer ring wire core 4 is circumferentially arranged at the outer ring of the middle shaft wire core 1. Set up first decompression layer 2 in axis sinle silk 1's outside, set up second decompression layer 3 in first decompression layer 2 outside when with outer loop sinle silk 4 install in second decompression layer 3, the layer protection, structural more reasonable and firm.

The buffer frame 5 is hexagonal, and the included angle a between the top supporting spoke 6 and the top edge of the buffer frame 5 is smaller than the included angle b between the bottom supporting spoke 7 and the bottom edge of the buffer frame 5. In the decompression assembly in the decompression layer, the cushion frame 5 is a main frame, and the triangle has excellent stability but insufficient toughness, and therefore, in the utility model, the buffer frame 5 is made into a hexagon and has certain toughness, and the included angle a between the top supporting spoke 6 and the top edge of the buffer frame 5 is arranged in the outer ring, therefore, the included angle b between the bottom supporting spoke 7 and the bottom edge of the buffer frame 5 is smaller than that between the connecting spokes 8 of two adjacent buffer frames 5, when the whole structure is extruded by a heavy object, the buffer frame 5 is deformed to offset the pressure under stress, and meanwhile, the top supporting spokes 6, the bottom supporting spokes 7 and the connecting spokes 8 are matched with each other to reduce the deformation of the buffer frame 5 to a certain degree, and share certain pressure, reduce the influence of external pressure to the inner member only through the little deformation of buffering frame 5, the compressive capacity has greatly improved when the structure is firm.

First decompression layer 2 is still including the cover locate axis sinle silk 1 outer interior cushion collar 9, decompression assembly in first decompression layer 2 is ring form equidistance around the outside of cushion collar 9 including and arranges and the specification is the same all, be provided with adapter sleeve 10 between decompression assembly of first decompression layer 2 and the decompression assembly of second decompression layer 3, adapter sleeve 10 outer cushion collar 11 is still located including the cover to second decompression layer 3, decompression assembly in the second decompression layer 3 is ring form equidistance between adapter sleeve 10 and outer cushion collar 11 and arranges and the specification is the same all, decompression assembly quantity in the first decompression layer 2 is 8 at least, decompression assembly's quantity is 6 at least in the second decompression layer 3.

Axis sinle silk 1 sets up in interior cushion collar 9, when holistic structure receives the heavy object extrusion, the deformation of decompression subassembly can transmission pressure, cushion collar 9 bears in the pressure needs of a part, consequently, the utility model discloses in, interior cushion collar 9 is worked out by stainless steel wire, there is good rigidity and intensity on the material, can bear pressure, carry out effectual protection to its inside axis sinle silk 1, and outer cushion collar 11, decompression subassembly and adapter sleeve 10 are when bearing pressure, need come transmission pressure through deformation, consequently the utility model discloses in, outer cushion collar 11, decompression subassembly and adapter sleeve 10 all are made by soft polyurethane, possess good resistance to compression, anti-seismic force and elasticity, when receiving the repression, through successive layer deformation transmission and weakening pressure, thereby protect inner structure.

The heat insulation material 12 is filled in gaps at positions of the first pressure reduction layer 2 and the second pressure reduction layer 3, the protecting sleeve 13 is further sleeved outside the middle shaft wire core 1 and the outer ring wire core 4, and the protecting sleeve 13 is composed of an insulating layer 14 wrapped on the wire core, an elastic layer 15 wrapped on the insulating layer 14 and a fireproof layer 16 wrapped on the elastic layer 15.

The utility model discloses in, the tan has insulation material 13 in each space of first decompression layer 2 and second decompression layer 3, because slight deformation can take place when receiving pressure in the decompression layer, consequently insulation material chooses for use glass fiber resistance to compression cotton to fill, when guaranteeing good insulating nature, has good thermal-insulated, syllable-dividing and corrosion resistance, when the outside temperature of cable reduces or when rising, can play the thermal-insulated effect that keeps warm, keeps the operating condition of sinle silk.

Lag 13 is the last line of defence of sinle silk, consequently the utility model discloses in, lag 13 contains insulating layer 14, elastic layer 15 and flame retardant coating 16, and insulating layer 14 plays insulating effect, and elastic layer 15 possesses certain tensile strength, makes lag 13 whole more durable, and flame retardant coating 16 is made by fire prevention rubber, has the high performance of high temperature resistant anti-ignition.

The external protective layer is composed of a waterproof layer 17 wrapped outside the second decompression layer 3, a shielding layer 18 wrapped outside the waterproof layer 17, a flame retardant layer 19 wrapped outside the shielding layer 18 and a halogen-free layer 20 wrapped outside the flame retardant layer 19, the thickness of the waterproof layer 17 is at least 5mm, the shielding layer 18 is a copper mesh woven layer, and the thickness of the flame retardant layer 19 is at least 8 mm.

The external protection layer is the outermost protection wrapped outside the second decompression layer 3, when the cable works, after current is supplied, an internal magnetic field can be generated inside the cable, so that the shielding layer 18 is required to be arranged outside the cable, in the utility model, the shielding layer 18 is formed by weaving a copper mesh, the shielding layer 18 can reduce the influence of an external electromagnetic field on the inside of the cable, and meanwhile, the electromagnetic energy inside the cable can be effectively prevented from radiating outwards; as the external protection, waterproof and fire resistance are very necessary, consequently be provided with waterproof layer 17 in shielding layer 18, in order to cooperate the decompression layer in the cable, the utility model discloses in, waterproof layer 17 is also made by polyurethane, and not less than 5mm, and be provided with flame retardant layer 19 in shielding layer 18's outside, contain the flame retardant in flame retardant layer 19 and not less than 8mm, when the outside emergence burning of cable, the flame retardant can effectively prevent the sustained combustion, protect inside structure, be provided with no halogen layer 20 in flame retardant layer 19's outside simultaneously, it possesses certain insulating nature to have no halogen layer 20, when taking place the firing simultaneously, the flue gas that produces is very few, can reduce the injury to the human body, cooperation flame retardant layer 19 can reduce the harm to the outside when protecting inner structure.

As shown in fig. 4, since the cable is roughly divided into a single core cable and a multi-core cable, and fig. 4 is a structure diagram of the present invention when applied to the single core cable, as shown in the figure, since it is the single core cable, the second decompression layer 3 is eliminated, only the first decompression layer 2 and the connecting sleeve 10 are remained, and the external protection layer of the cable is directly disposed outside the connecting sleeve 10.

Utilize the utility model discloses a fire-retardant waterproof cable of technical scheme preparation compares with prior art:

1. a decompression layer is arranged in the cable, and a decompression assembly is arranged in the decompression layer, so that the cable has good compression resistance;

2. the pressure reducing assembly adopts a hexagonal buffer frame, and the pressure outside is counteracted by slight deformation of the buffer frame through the top support spoke, the bottom support spoke and the connecting spoke, so that the pressure reducing assembly has good toughness, and when the cable receives heavy pressure, the internal structure of the cable can still be ensured not to be damaged, and the normal use is maintained;

3. a protective sleeve is arranged outside the wire core, and an elastic layer and a fireproof layer are arranged in the protective sleeve to further protect the wire core and prolong the service life of the wire core;

4. the waterproof layer and the flame retardant layer are arranged in the outer protective layer of the cable, so that the cable has good waterproof and flame retardant properties.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a fire-retardant waterproof cable, includes the cable body, its characterized in that: the cable body comprises a center shaft wire core (1), a first pressure reducing layer (2) wrapped on the center shaft wire core (1), a second pressure reducing layer (3) wrapped on the first pressure reducing layer (2), an outer ring wire core (4) embedded in the second pressure reducing layer (3), and an external protective layer wrapped on the second pressure reducing layer (3), wherein a plurality of pressure reducing assemblies are arranged in the first pressure reducing layer (2) and the second pressure reducing layer (3), and each pressure reducing assembly comprises a buffer frame (5), top support spokes (6) arranged on two sides of the top edge of the buffer frame (5), bottom support spokes (7) arranged on two sides of the bottom edge of the buffer frame (5) and connecting spokes (8) arranged between two adjacent buffer frames (5).

2. A fire retardant and waterproof cable according to claim 1, wherein: first decompression layer (2) are still including the cover interior cushion collar (9) of locating outside axis sinle silk (1), decompression subassembly in first decompression layer (2) is the ring form equidistance around the outside of cushion collar (9) including and arranges and the specification is the same all.

3. A fire retardant and waterproof cable according to claim 1, wherein: be provided with adapter sleeve (10) between the pressure reducing unit of first pressure reducing layer (2) and the pressure reducing unit of second pressure reducing layer (3), outer cushion collar (11) outside adapter sleeve (10) are still located including the cover in second pressure reducing layer (3), pressure reducing unit in second pressure reducing layer (3) is ring form equidistance between adapter sleeve (10) and outer cushion collar (11) and arranges and the specification of a dimension is the same all.

4. A fire retardant and waterproof cable according to claim 1, wherein: the number of pressure reduction components in the first pressure reduction layer (2) is at least 8, and the number of pressure reduction components in the second pressure reduction layer (3) is at least 6.

5. A fire retardant and waterproof cable according to claim 1, wherein: the buffer frame (5) is hexagonal, and the included angle a between the top supporting spokes (6) and the top edge of the buffer frame (5) is smaller than the included angle b between the bottom supporting spokes (7) and the bottom edge of the buffer frame (5).

6. A fire retardant and waterproof cable according to claim 1, wherein: the middle shaft wire core (1) is arranged in the inner buffer sleeve (9) and is coaxial with the inner buffer sleeve (9), and the outer ring wire core (4) is arranged in the buffer frame (5) of the pressure reduction assembly in the second pressure reduction layer (3) and is coaxial with an inscribed circle of the buffer frame (5).

7. A fire retardant and waterproof cable according to claim 1, wherein: and heat insulation materials (12) are filled in gaps at positions of the first pressure reduction layer (2) and the second pressure reduction layer (3), and the protecting sleeve (13) is sleeved outside the middle shaft wire core (1) and the outer ring wire core (4).

8. A fire retardant and waterproof cable according to claim 7, wherein: the protective sleeve (13) is composed of an insulating layer (14) wrapped on the wire core, an elastic layer (15) wrapped on the insulating layer (14) and a fireproof layer (16) wrapped on the elastic layer (15).

9. A fire retardant and waterproof cable according to claim 1, wherein: the external protective layer is composed of a waterproof layer (17) wrapped outside the second decompression layer (3), a shielding layer (18) wrapped outside the waterproof layer (17), a flame retardant layer (19) wrapped outside the shielding layer (18), and a halogen-free layer (20) wrapped outside the flame retardant layer (19).

10. A fire retardant and waterproof cable according to claim 9, wherein: the thickness of waterproof layer (17) is 5mm at least, shielding layer (18) are the copper mesh weaving layer, the thickness of fire retardant layer (19) is 8mm at least.