CN216697931U - Fireproof and waterproof cable - Google Patents

Abstract

The utility model provides a fireproof and waterproof cable, and relates to the technical field of cables. Including the heat conduction metal strip, the outer winding of heat conduction metal strip is equipped with metal coil, metal coil has the fin along the equal angle rigid couplings of circumference, it has fire-resistant filling layer to fill between the fin, the fire-resistant filling layer inlays and is equipped with the cable core, be equipped with the insulating layer outside the fire-resistant filling layer, one side that fire-resistant filling layer was kept away from to the insulating layer is equipped with the metal shielding layer, one side that the insulating layer was kept away from on the metal shielding layer is equipped with the extrusion layer, evenly distributed has the rubber ball in the extrusion layer, the rubber ball is hollow structure, the inside of rubber ball is vacuum, one side that the metal shielding layer was kept away from on the extrusion layer is equipped with the layer that absorbs water, one side that the layer of keeping away from the extrusion layer that absorbs water is equipped with the water blocking layer, one side that the layer was kept away from the layer that absorbs water is equipped with fire-retardant low smoke and zero halogen outer lag. The utility model has better waterproof and fireproof performance, can resist external pressure and can carry out quick heat dissipation.

Description

Fireproof and waterproof cable

Technical Field

The utility model provides a fireproof and waterproof cable, and relates to the technical field of cables.

Background

With the continuous progress and development of the telecommunication industry, various communication devices are gradually increased, and the cable is used as one of necessary objects for signal transmission, so that the application range is very wide. Water leakage and fire disaster are important factors influencing the safe operation of the cable, the existing cable does not have good waterproof and fireproof performance, the phenomenon of corrosion damage is very easy to occur in the using process, the cable laying environment is complex and various, and can be extruded by external force frequently, the existing cable does not have good compression resistance, the internal cable core is very easy to be damaged, the high temperature can accelerate the aging of the insulating layer, and the cable can be expanded and deformed to influence normal use.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a fireproof and waterproof cable which has better waterproof and fireproof performances, can resist external pressure and can rapidly dissipate heat.

The utility model provides a fireproof and waterproof cable which comprises a heat-conducting metal strip, wherein a metal coil is wound outside the heat-conducting metal strip, radiating fins are fixedly connected with the metal coil at equal angles along the circumferential direction, a fireproof filling layer is filled between the radiating fins, a cable core is embedded in the fireproof filling layer, an insulating layer is arranged outside the fireproof filling layer, a metal shielding layer is arranged on one side, away from the fireproof filling layer, of the insulating layer, an extrusion layer is arranged on one side, away from the insulating layer, of the metal shielding layer, rubber balls are uniformly distributed in the extrusion layer, the rubber balls are of a hollow structure, the inner portion of each rubber ball is vacuum, a water absorption layer is arranged on one side, away from the metal shielding layer, of the extrusion layer, a water blocking layer is arranged on one side, away from the extrusion layer, of the water blocking layer, and an external flame-retardant low-smoke zero-halogen protective sleeve is arranged on one side, away from the water blocking layer.

The preferred number of fins is 5.

The fireproof filling layer is made of ceramic fireproof silicon rubber.

The insulating layer is a water tree resistant crosslinked polyethylene layer.

The extrusion layer and the rubber ball are made of fluororubber.

The utility model has the beneficial effects that:

the utility model provides a fireproof and waterproof cable which has better waterproof, fireproof, compression-resistant and corrosion-resistant performances, a heat-conducting metal strip and a metal coil can absorb heat and rapidly conduct the heat to a heat dissipation sheet, heat concentration is avoided, the cable has better heat dissipation performance, a fireproof filling layer wraps a cable core to play a good fireproof role, an insulating layer can protect the inner cable core from mechanical damage and chemical corrosion, mechanical strength is improved, service life is prolonged, a metal shielding layer can shield electromagnetism, rubber balls in an extrusion layer are of a vacuum structure, supporting force of the rubber balls is increased, the extrusion layer can buffer external force, compression-resistant performance is improved, a water absorption layer can absorb water vapor, a water blocking layer can block external water vapor from entering the cable, and a flame-retardant low-smoke halogen-free outer protection sleeve plays a role in protecting the cable and has a flame-retardant effect at the same time, further improving the fire-proof performance.

Drawings

Fig. 1 is a schematic view of an overall structure of a fireproof and waterproof cable according to the present invention.

(1, flame-retardant low-smoke halogen-free outer protective sleeve; 2, water-resistant layer; 3, water-absorbing layer; 4, extrusion layer; 5, rubber ball; 6, metal shielding layer; 7, insulating layer; 8, fire-resistant filling layer; 9, cable core; 10, radiating fin; 11, metal coil; 12, heat-conducting metal strip)

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in figure 1, the utility model provides a fireproof and waterproof cable, which comprises a heat-conducting metal strip 12, wherein a metal coil 11 is wound outside the heat-conducting metal strip 12, radiating fins 10 are fixedly connected with the metal coil 11 at equal angles along the circumferential direction, a fireproof filling layer 8 is filled between the radiating fins 10, a cable core 9 is embedded in the fireproof filling layer 8, an insulating layer 7 is arranged outside the fireproof filling layer 8, a metal shielding layer 6 is arranged on one side of the insulating layer 7 away from the fireproof filling layer 8, an extrusion layer 4 is arranged on one side of the metal shielding layer 6 away from the insulating layer 7, rubber balls 5 are uniformly distributed in the extrusion layer 4, the rubber balls 5 are of a hollow structure, the inside of the rubber balls 5 is vacuum, a water absorbing layer 3 is arranged on one side of the extrusion layer 4 away from the metal shielding layer 6, and a water blocking layer 2 is arranged on one side of the water absorbing layer 3 away from the extrusion layer 4, and one side of the water-resistant layer 2, which is far away from the water-absorbing layer 3, is provided with a flame-retardant low-smoke halogen-free outer protective sleeve 1.

The preferred number of fins 10 in the present invention is 5.

The material of the fireproof filling layer 8 is ceramic fireproof silicon rubber.

The insulating layer 7 is a water tree resistant crosslinked polyethylene layer.

In the utility model, the extrusion layer 4 and the rubber ball 5 are made of fluororubber.

The working principle is as follows: when the heat radiating fin is used, the heat conducting metal strips 12 and the metal coils 11 can absorb heat and quickly conduct the heat to the heat radiating fin 10, so that heat concentration is avoided; the cable core 9 is wrapped by the fireproof filling layer 8, so that a good fireproof effect is achieved, the insulating layer 7 can protect the internal cable core 9 from mechanical damage and chemical corrosion, the mechanical strength is improved, and the service life is prolonged; the metal shielding layer 6 mainly shields electromagnetism; the rubber ball 5 in the extrusion layer 4 is of a vacuum structure, so that the supporting force of the rubber ball 5 is increased, the extrusion layer 4 can buffer external force, and the compression resistance is improved; the water absorption layer 3 can absorb water vapor; the water-resistant layer 2 can prevent external water vapor from entering the cable; the flame-retardant low-smoke halogen-free outer protective sleeve 1 has a protective effect on cables and a flame-retardant effect, and the fireproof performance is further improved.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (5)

1. The utility model provides a but fire prevention waterproof cable which characterized in that: the heat-conducting metal strip comprises a heat-conducting metal strip (12), a metal coil (11) is wound outside the heat-conducting metal strip (12), radiating fins (10) are fixedly connected at equal angles along the circumferential direction of the metal coil (11), a fireproof filling layer (8) is filled between the radiating fins (10), a cable core (9) is embedded in the fireproof filling layer (8), an insulating layer (7) is arranged outside the fireproof filling layer (8), a metal shielding layer (6) is arranged on one side, away from the fireproof filling layer (8), of the insulating layer (7), an extrusion layer (4) is arranged on one side, away from the insulating layer (7), of the metal shielding layer (6), rubber balls (5) are uniformly distributed in the extrusion layer (4), the rubber balls (5) are of a hollow structure, the inside of the rubber balls (5) is vacuum, and a water absorption layer (3) is arranged on one side, away from the metal shielding layer (6), of the extrusion layer (4), one side of the water absorbing layer (3) far away from the extrusion layer (4) is provided with a water resisting layer (2), and one side of the water resisting layer (2) far away from the water absorbing layer (3) is provided with a flame-retardant low-smoke halogen-free outer protective sleeve (1).

2. A fire and water resistant cable according to claim 1, wherein: the preferred number of fins (10) is 5.

3. A fire and water resistant cable according to claim 1, wherein: the fireproof filling layer (8) is made of ceramic fireproof silicon rubber.

4. A fire and water resistant cable according to claim 1, wherein: the insulating layer (7) is a water tree resistant crosslinked polyethylene layer.

5. A fire and water resistant cable according to claim 1, wherein: the extrusion layer (4) and the rubber ball (5) are made of fluororubber.

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