CN213123910U

CN213123910U - High flame-retardant fireproof cable

Info

Publication number: CN213123910U
Application number: CN202021950133.2U
Authority: CN
Inventors: 吴海敏
Original assignee: Shenzhen Jili Wire And Cable Co ltd
Current assignee: Shenzhen Jili Wire And Cable Co ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-05-04
Anticipated expiration: 2030-09-08

Abstract

The utility model discloses a high flame retardant fireproof cable, its technical scheme is: including outer insulation cover, outer insulation cover inner wall fixed connection supporting component, supporting component includes first supporting block, first supporting block quantity sets up to a plurality of, and is a plurality of first supporting block tip fixed connection support ring, a plurality of through bracing piece fixed connection, a plurality of between the support ring bracing piece external fixation is equipped with the protective sheath, and is a plurality of the support ring internal fixation is equipped with the cable conductor, and the outside of stranded cable conductor is equipped with the hose, and a high fire-retardant fireproof cable beneficial effect is: the utility model discloses an use first supporting block and supporting ring to support stranded cable conductor respectively for can not contact each other between the stranded cable conductor, again through setting up the lime cotton between a plurality of support rings, can not influence the transmission of other cable conductor to power and information when making one of them cable conductor take place to burn, thereby improved the security of cable.

Description

High flame-retardant fireproof cable

Technical Field

The utility model relates to a high fire-retardant fireproof cable field, concretely relates to high fire-retardant fireproof cable.

Background

A cable is generally a cable made by twisting several or several groups of wires, each group of wires being insulated from each other and often twisted around a center, and being entirely covered with a highly insulating covering, and the cable being characterized by internal current conduction and external insulation. Electrical cables are a material used in power, communication and related transmission applications. The fireproof cable which is widely applied at the present stage mainly comprises two types of UL series flame-retardant cables and flame-retardant low-smoke halogen-free cables. The imported products mainly come from America and Europe, and as the fire-proof cable standards of the America and the Europe are not compatible with each other and the fire-proof thinking is greatly different, the Party A and the design institute are in a passive state when selecting the products, have respective laws and reasoning, and are often selected according to the actual situation of capital; the wire and cable industry is the second industry in China next to the automobile industry, the product variety satisfaction rate and the domestic market share both exceed percent, China is one of the most important cable product research and development production bases in the world, and the wire and cable industry has a series of cable products with unique performances and special structures, such as flame retardance, fire resistance, high temperature and low temperature resistance, low inductance and low noise, environmental protection, low smoke, zero halogen, ant and mouse resistance, water and moisture resistance and the like, and has formed certain productivity. With the continuous improvement of the security protection and system safety requirements of the society, through the wide publicity, promotion and cooperation of governments, industries and enterprises, the special cable product with high performance, high efficiency and safety is certainly widely applied to various industry systems like developed countries in the west.

The prior art has the following defects: present fireproof cable comprises stranded cable conductor, one of them cable conductor receives the influence of circuit short circuit, cause the burning of self easily, thereby cause the influence to stranded cable conductor, thereby can not keep the circuit unblocked, let power and information can not normal transmission, current cable outside is usually all to play the effect of protection cable by the insulating layer that outside package has, but current outside insulating layer comprises ordinary rubber materials, if the condition of a fire takes place in the outside, can not prevent effectively that the condition of a fire from getting into inside the external insulation layer, and its mechanical strength is low excessively, if meet the mechanical impact of great intensity, can cause the damage to the cable.

Therefore, it is necessary to invent a high flame-retardant fireproof cable.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a high fire-retardant fireproof cable supports stranded cable conductor respectively through using first supporting block and supporting ring for can not contact each other between the stranded cable conductor, through setting up the lime-wool between a plurality of supporting rings again, can not influence the transmission of other cable conductor to power and information when making one of them cable conductor take place to burn, arouse the problem of other cable conductor burning with solving one cable conductor burning.

In order to achieve the above object, the present invention provides the following technical solutions: a high flame-retardant fireproof cable comprises an outer insulating sleeve.

Preferably, outer insulating cover inner wall fixed connection supporting component, supporting component includes first supporting block, first supporting block quantity sets up to a plurality ofly, and is a plurality of first supporting block tip fixed connection support ring is a plurality of through bracing piece fixed connection, a plurality of between the support ring bracing piece external fixation is equipped with the protective sheath, and is a plurality of the support ring internal fixation is equipped with the cable conductor, and stranded cable conductor outside is equipped with the hose, the inside liquid silica gel that is equipped with of hose, the hose external fixation is equipped with the internal insulation cover.

Preferably, the support member includes a second support block, and an end surface of the second support block is provided as an arc-shaped surface.

Preferably, the inner wall of the support ring is in contact with the outer wall of the inner insulating sleeve.

Preferably, the inner part of the outer insulating sleeve is fixedly provided with lime cotton.

Preferably, a plurality of the support rings are centrosymmetric along the center point of the outer insulating sleeve.

Preferably, a plurality of the cable wires are centrosymmetric along the center point of the outer insulating sleeve.

The utility model has the advantages that:

1. the utility model discloses an use first supporting block and supporting ring to support stranded cable conductor respectively for can not contact each other between the stranded cable conductor, again through setting up the lime cotton between a plurality of support rings, can not influence the transmission of other cable conductor to power and information when making one of them cable conductor take place to burn, thereby improved the security of cable.

2. The utility model discloses a set up the outer insulating sleeve into ceramic silicon rubber, because its good refractiveness with when meetting the high temperature material pottery ization, it can be when cable spontaneous combustion and outside conflagration take place, guarantee the insulating properties of cable.

Drawings

Fig. 1 is a side cross-sectional view provided by the present invention;

fig. 2 is a partial view of a first support block and a support ring provided by the present invention;

fig. 3 is a side cross-sectional view of the cable provided by the present invention;

fig. 4 is a side sectional view of embodiment 2 provided by the present invention;

fig. 5 is a partial view of a second support block and support ring provided by the present invention;

in the figure: the cable comprises an outer insulating sleeve 1, a supporting part 2, a first supporting block 21, a second supporting block 22, a supporting ring 3, a supporting rod 4, a protective sleeve 5, a cable wire 6, a hose 7, an inner insulating sleeve 8 and asbestos 9.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Embodiment 1, referring to fig. 1 to 3, the present invention provides a high flame retardant fireproof cable, which includes an outer insulating sheath 1;

further, the inner wall of the outer insulating sleeve 1 is fixedly connected with the supporting part 2, the supporting part 2 comprises a plurality of first supporting blocks 21, the number of the first supporting blocks 21 is multiple, the end part of the first supporting block 21 is fixedly connected with the supporting ring 3, the supporting rings 3 are fixedly connected through supporting rods 4, the supporting rods 4 are externally fixedly provided with protective sleeves 5, the supporting rings 3 are internally fixedly provided with cables 6, the outside of each multi-strand cable 6 is provided with a hose 7, the inside of the hose 7 is provided with liquid silica gel, the outside of the hose 7 is fixedly provided with an inner insulating sleeve 8, specifically, the outer insulating sleeve 1 is made of ceramic silicon rubber, due to good fire resistance and ceramic material when encountering high temperature, the insulating property of the cable can be ensured when spontaneous combustion of the cable and external fire happen, and due to good flexibility of the ceramic silicon rubber, when the cable is used, the cable can be damaged due to mechanical impact with high strength, the first support block 21 has the function of fixing the support ring 3, the support ring 3 has the function of limiting the cable 6, the protective shell is made of silane crosslinked polyethylene material, the silane crosslinked polyethylene material has the advantages of high temperature resistance, high hardness, strong corrosion resistance and difficult damage, the liquid silica gel has the characteristics of high temperature resistance and poor conductivity, the inner insulating sleeve 8 is made of flame-retardant filler, the heat resistance and the air permeability of the inner insulating sleeve are high, the heat resistance and the heat dissipation performance of the cable are enhanced, the cable is prevented from being burnt due to the rise of the internal temperature in work, and the safety of the cable is enhanced;

further, the inner wall of the support ring 3 is contacted with the outer wall of the inner insulating sleeve 8;

further, the asbestos 9 is fixedly arranged inside the outer insulating sleeve 1, and particularly, the asbestos 9 has the characteristic of high temperature resistance, so that the heat resistance of the cable is enhanced, and the safety of the cable is enhanced;

further, a plurality of the support rings 3 are centrosymmetric along the central point of the outer insulating sleeve 1;

further, a plurality of the electric cables 6 are centrosymmetric along the center point of the outer insulating sleeve 1.

The utility model discloses a use as follows: when the utility model is used, the multi-strand cable 6 is respectively placed into the support rings 3, the multi-strand cable 6 is respectively supported by the first support block 21 and the support rings 3, so that the multi-strand cable 6 can not be contacted with each other, the limestone wool 9 is arranged between the support rings 3, when one cable 6 is burnt, the transmission of other cables 6 to power and information can not be influenced, the hose 7 is arranged outside the cable 6, the liquid silica gel is arranged inside the hose 7, so that the heat resistance of the cable is enhanced, the cable is prevented from being burnt due to the rise of the internal temperature in the work, the safety of the cable is enhanced, the inner insulating sleeve 8 is arranged outside the hose 7, the heat resistance and the air permeability of the cable 6 are improved, and the heat resistance and the heat dissipation performance of the cable are enhanced, the cable is prevented from burning due to the rise of the internal temperature in the working process, and the external insulation sleeve 1 is arranged on the outermost part, so that the cable is mechanically impacted with high strength, and the cable cannot be damaged.

Embodiment 2, referring to fig. 4-5, the present invention provides a high flame retardant fireproof cable, which is different from embodiment 1;

further, the supporting part 2 includes a second supporting block 22, and the end surface of the second supporting block 22 is configured as an arc surface, specifically, because the end surface of the second supporting block 22 is configured as an arc surface, the contact area with the supporting ring 3 is increased, and the supporting effect is better.

The implementation scenario is specifically as follows: when the utility model is used, the multi-strand cable 6 is respectively placed into the support rings 3, the multi-strand cable 6 is respectively supported by the second support blocks 22 and the support rings 3, so that the multi-strand cable 6 can not be contacted with each other, the lime wool 9 is arranged between the support rings 3, when one cable 6 is burnt, the transmission of other cables 6 to power and information can not be influenced, the hose 7 is arranged outside the cable 6, the liquid silica gel is arranged inside the hose 7, so that the heat resistance of the cable is enhanced, the cable is prevented from being burnt due to the rise of the internal temperature in the work, the safety of the cable is enhanced, the inner insulating sleeve 8 is arranged outside the hose 7, the heat resistance and the air permeability of the cable 6 are improved, and the heat resistance and the heat dissipation performance of the cable are enhanced, prevent the cable from burning due to the rise of the internal temperature in the work, and the external insulation sleeve 1 is arranged at the outermost part, so that the cable is mechanically impacted with larger strength and cannot be damaged

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.

Claims

1. The utility model provides a high fire-retardant fireproof cable, includes outer insulating cover (1), its characterized in that: outer insulating sleeve (1) inner wall fixed connection supporting part (2), supporting part (2) are including first supporting block (21), first supporting block (21) quantity sets up to a plurality of, a plurality of first supporting block (21) tip fixed connection support ring (3), and is a plurality of through bracing piece (4) fixed connection, a plurality of between support ring (3) bracing piece (4) external fixation is equipped with protective sheath (5), and is a plurality of support ring (3) internal fixation is equipped with cable conductor (6), and stranded cable conductor (6) outside is equipped with hose (7), hose (7) inside is equipped with liquid silica gel, hose (7) external fixation is equipped with interior insulation cover (8).

2. A high flame retardant fireproof cable according to claim 1, wherein: the supporting part (2) comprises a second supporting block (22), and the end surface of the second supporting block (22) is arranged to be an arc-shaped surface.

3. A high flame retardant fireproof cable according to claim 1, wherein: the inner wall of the support ring (3) is contacted with the outer wall of the inner insulating sleeve (8).

4. A high flame retardant fireproof cable according to claim 1, wherein: the inner part of the outer insulating sleeve (1) is fixedly provided with lime cotton (9).

5. A high flame retardant fireproof cable according to claim 1, wherein: the support rings (3) are centrosymmetric along the center point of the outer insulating sleeve (1).

6. A high flame retardant fireproof cable according to claim 1, wherein: the plurality of cable wires (6) are centrosymmetric along the center point of the outer insulating sleeve (1).