CN212809844U

CN212809844U - Environment-friendly load-bearing composite cable

Info

Publication number: CN212809844U
Application number: CN202021864018.3U
Authority: CN
Inventors: 杨凯; 张同义
Original assignee: Chongqing Yan Brand Wire & Cable Co ltd
Current assignee: Chongqing Yan Brand Wire & Cable Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-03-26
Anticipated expiration: 2030-08-31

Abstract

The utility model provides an environmental protection holds lotus composite cable, relates to cable technical field, includes: the cable core is formed by twisting a plurality of wire cores; the filler, the insulation shielding layer, the flame-retardant layer and the outer protection layer are sequentially coated outside the cable core; a fixing frame is arranged in the insulation shielding layer, the cable core is positioned in the fixing frame, the fixing frame is fixed in the insulation shielding layer through a plurality of supports, optical fiber units are arranged in fillers between two connected supports, and the flame-retardant layer is made of halogen-free low-smoke cross-linked polyethylene material; the cable core is fixed in the insulating shielding layer through the fixing frame and the support, so that when the cable is used in a complex environment and is bent or collided, the load bearing capacity of the cable can be improved, the cable core is protected from displacement or rotation, and the cable core is prevented from being damaged or colliding or rubbing with the optical fiber unit; if a fire occurs, the flame-retardant layer of the cable is made of the halogen-free low-smoke cross-linked polyethylene material, so that a large amount of toxic and harmful smoke is not generated when the cable is burnt.

Description

Environment-friendly load-bearing composite cable

Technical Field

The utility model relates to the technical field of cables, concretely relates to environmental protection holds lotus composite cable.

Background

With the increase of national power grids and southern power grids on the construction of smart power grids, high-voltage and ultrahigh-voltage high-capacity transmission lines are vigorously constructed on a backbone network, and Power Fiber To The Home (PFTTH) is also pushed at a user side. The power fiber-to-the-home mode means that a fiber composite medium-voltage cable and a low-voltage cable are adopted in a low-voltage communication access network, optical fibers are laid along with a low-voltage power line, the purpose that an intelligent electric meter is connected to the home is achieved, and services such as power utilization information collection, intelligent power utilization bidirectional interaction, multi-network fusion and the like are borne by the aid of a passive optical network technology.

The construction of the smart power grid provides new requirements for traditional optical cables and power transmission, and the optical fiber composite medium-voltage and low-voltage cables are used as important products of user access ends in the construction of the smart power grid, and are integrated with optical fiber communication and power transmission, so that the requirements of information, automation and interaction of the smart power grid are met, the advantages are strong, the application is wide, and safe and reliable guarantee is provided for the construction of the smart power grid.

The optical fiber composite medium and low voltage cable can realize multi-network fusion and is a main force of the cable of the intelligent power grid. The optical fiber composite medium and low voltage cable is one of important cable products in the construction of an intelligent power grid, integrates the functions of communication and power, can effectively realize multi-network fusion of a telecommunication network, a power transmission network, a television network, the Internet and the like, reduces the cost of network construction, and is one of the multi-network fusion products with the highest cost performance at present.

The existing composite cable product has wide application, so the composite cable can be used in various different environments, but the load bearing capacity of the existing composite cable is poor, and the existing composite cable can be pressed to deform or break after being used for a period of time; and the protective layer material of the existing composite cable can generate a large amount of toxic and harmful gas during combustion due to high halogen content, so that the environmental pollution is high, and meanwhile, people can have life danger after inhaling the toxic and harmful gas.

SUMMERY OF THE UTILITY MODEL

The utility model discloses according to the problem of current optic fibre composite cable bearing load ability not enough and not environmental protection, the utility model discloses a following technical scheme:

an environment-friendly load-bearing composite cable comprising:

the cable core is formed by twisting a plurality of wire cores; and

the filler, the insulation shielding layer, the flame retardant layer and the outer protective layer are sequentially coated outside the cable core;

the utility model discloses a fire-retardant cable core, including insulation shielding layer, cable core, fixed frame, fire-retardant layer, optical fiber unit, fire-retardant layer, fixed frame is equipped with fixed frame in the insulation shielding layer, the cable core is located fixed frame, fixed frame is fixed in the insulation shielding layer through a plurality of supports, all is equipped with the optical fiber unit in the filler between two consecutive supports, and fire-retardant layer is made.

Compared with the prior art, the utility model discloses following beneficial effect has: the cable core is fixed in the insulating shielding layer through the fixing frame and the support, so that when the cable is used in a complex environment and the cable is bent or collided, the load bearing capacity of the cable can be improved, the cable core is protected from displacement or rotation, the cable core is prevented from being damaged or colliding or rubbing with the optical fiber unit, the normal use of the cable core and the optical fiber unit is ensured, and the service life of the cable is prolonged; use the cable under the complex environment, if the condition of a fire appears, because the fire-retardant layer of cable uses and does not have steamed low cigarette crosslinked polyethylene material to make, then can not produce a large amount of poisonous harmful smog during the cable burning for staff's life safety obtains the protection, and the staff of also being convenient for controls and handles the condition of a fire.

Preferably, a fireproof shell is arranged between the outer protective layer and the flame-retardant layer.

Preferably, a plurality of first draw-in grooves have been seted up to outer protective layer inner wall circumference, fire-retardant layer outer wall circumference is equipped with a plurality of second lugs, fire prevention shell outer wall circumference is equipped with a plurality of first lugs with a plurality of first draw-in grooves one-to-one joint, and a plurality of second draw-in grooves with a plurality of second lug one-to-one joint are seted up to fire prevention shell inner wall circumference.

Preferably, the filler is a net-shaped flame-retardant mineral continuous cotton rope.

Preferably, the thickness of the fixing frame is 1 cm-2 cm, and the fixing frame is made of an elastic material.

Preferably, the insulation shielding layer is made of a semiconductor material.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present invention.

The numbers in the figures are in order: 1. an outer protective layer; 2. a fire-resistant shell; 21. a first bump; 3. a flame retardant layer; 31. a second bump; 4. an insulating shield layer; 5. a fixing frame; 6. a support; 7. a wire core; 8. an optical fiber unit; 9. and (4) filling materials.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

as shown in fig. 1, the embodiment of the utility model provides an environmental protection holds lotus composite cable, include:

a cable core formed by twisting a plurality of wire cores 7; and

the filler 9, the insulation shielding layer 4, the flame-retardant layer 3 and the outer protection layer 1 are sequentially coated outside the cable core;

be equipped with fixed frame 5 in the insulation shield 4, the cable core is located fixed frame 5, fixed frame 5 is fixed in insulation shield 4 through a plurality of supports 6, all is equipped with optical fiber unit 8 in the filler 9 between two consecutive supports 6, and fire-retardant layer 3 is made by the low smoke cross-linked polyethylene material of halogen-free.

The cable core is fixed in the insulation shielding layer 4 through the fixing frame 5 and the support 6, so that the cable is used in a complex environment, when the cable is bent or collided, the load bearing capacity of the cable can be improved, the cable core is protected from displacement or rotation, the cable core is prevented from being damaged or colliding or rubbing with the optical fiber unit 8, the normal use of the cable core and the optical fiber unit 8 is ensured, and the service life of the cable is prolonged; use the cable under the complex environment, if the condition of a fire appears, because the fire-retardant layer 3 of cable uses the low smoke crosslinking polyethylene material of steamed to make, then can not produce a large amount of poisonous harmful smog during the cable burning for staff's life safety obtains the protection, and the staff of also being convenient for controls and handles the condition of a fire.

As shown in fig. 1, according to another embodiment of the present invention, in the environment-friendly load-bearing composite cable, a fireproof shell 2 is preferably disposed between the outer protection layer 1 and the flame retardant layer 3; when a fire occurs, after the outer protective layer 1 of the cable is burnt through, the fireproof shell 2 can effectively prevent the fire from spreading, so that the worker can timely control the fire and eliminate the fire.

As shown in fig. 1, according to another embodiment of the present invention, the outer protective layer 1, the fire-proof shell 2 and the fire-retardant layer 3 included therein are further optimized, a plurality of first slots are circumferentially formed on the inner wall of the outer protective layer 1, a plurality of second protrusions 31 are circumferentially formed on the outer wall of the fire-retardant layer 3, a plurality of first protrusions 21 are circumferentially arranged on the outer wall of the fire-proof shell 2 and are connected to the first slots in a one-to-one manner, and a plurality of second slots are circumferentially formed on the inner wall of the fire-proof shell 2 and are connected to the second protrusions 31 in a one-to-one; the fireproof shell 2 is clamped with the first bump 21 through the first clamping groove and is clamped with the second bump 31 to be detachably mounted between the outer protective layer 1 and the flame-retardant layer 3, when the outer protective layer 1 and the fireproof shell 2 are damaged, only the outer protective layer 1 and the fireproof shell 2 are replaced, the whole cable does not need to be replaced, the maintenance cost of the cable is reduced, and meanwhile, the first bump 21 and the second bump 31 can also serve as stress points to improve the load bearing capacity of the cable; and the first clamping groove is clamped with the first bump 21, and the second clamping groove is clamped with the second bump 31, so that the outer protection layer 1, the fireproof shell 2 and the flame-retardant layer 3 cannot rotate relatively to generate abrasion.

According to another embodiment of the present invention, as shown in fig. 1, the filler 9 included therein is further optimized, and the filler 9 is a net-shaped flame-retardant mineral continuous cotton rope; the protection cable core that can be better to network structure can also have certain heat dissipation function.

As shown in fig. 1, according to another embodiment of the present invention, the fixing frame 5 comprised by it is further optimized, the thickness of the fixing frame 5 is 1 cm-2 cm, and the fixing frame 5 is made of elastic material; the thickness of the fixed frame 5 is limited to 1 cm-2 cm, so that good heat dissipation can be guaranteed, the fixed frame 5 is made of elastic materials, when the cable is extruded, the fixed frame 5 can play a certain buffering role, and the impact force on the cable core in the fixed frame 5 is relieved.

As shown in fig. 1, according to another embodiment of the present invention, the fixing frame 5 included therein is further optimized, and the insulating and shielding layer 4 is made of a semiconductor material; the semiconductor material is semiconductor paper, the thickness of the semiconductor paper is 0.5mm-0.7mm, the diameter of the cable cannot be increased while a good shielding effect is achieved.

The utility model discloses an application principle does: the utility model fixes the cable core in the insulation shielding layer 4 through the fixing frame 5 and the bracket 6, so that when the cable is used in a complex environment, the load bearing capacity of the cable can be improved when the cable is bent or collided, the cable core is protected from displacement or rotation, the cable core is prevented from being damaged or colliding or rubbing with the optical fiber unit 8, the normal use of the cable core and the optical fiber unit 8 is ensured, and the service life of the cable is prolonged; when the cable is used in a complex environment and a fire occurs, the flame-retardant layer 3 of the cable is made of a halogen-free low-smoke cross-linked polyethylene material, so that a large amount of toxic and harmful smoke is not generated when the cable is burnt; the fireproof shell 2 is detachably mounted between the outer protective layer 1 and the flame-retardant layer 3 through the clamping connection of the first clamping groove and the first bump 21 and the clamping connection of the second clamping groove and the second bump 31, when the outer protective layer 1 and the fireproof shell 2 are damaged, only the outer protective layer 1 and the fireproof shell 2 are replaced, the whole cable does not need to be replaced, the maintenance cost of the cable is reduced, and meanwhile, the first bump 21 and the second bump 31 can also serve as stress points, so that the load bearing capacity of the cable is improved; the utility model discloses each layer all has good fire prevention fire-retardant effect, still has good heat dissipation simultaneously.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. An environment-friendly load-bearing composite cable comprising:

a cable core formed by twisting a plurality of wire cores (7); and

the filler (9), the insulation shielding layer (4), the flame-retardant layer (3) and the outer protective layer (1) are sequentially coated outside the cable core; it is characterized in that the preparation method is characterized in that,

be equipped with fixed frame (5) in insulation shield (4), the cable core is located fixed frame (5), fixed frame (5) are fixed in insulation shield (4) through a plurality of supports (6), all are equipped with optical fiber unit (8) in filler (9) between two continuous supports (6), and fire-retardant layer (3) are made by zero halogen low cigarette crosslinked polyethylene material.

2. The environment-friendly load-bearing composite cable as claimed in claim 1, wherein a fireproof shell (2) is arranged between the outer protective layer (1) and the flame-retardant layer (3).

3. The environment-friendly load-bearing composite cable according to claim 2, wherein a plurality of first clamping grooves are circumferentially formed in the inner wall of the outer protection layer (1), a plurality of second protruding blocks (31) are circumferentially formed in the outer wall of the flame retardant layer (3), a plurality of first protruding blocks (21) which are clamped with the plurality of first clamping grooves in a one-to-one correspondence manner are circumferentially formed in the outer wall of the fireproof shell (2), and a plurality of second clamping grooves which are clamped with the plurality of second protruding blocks (31) in a one-to-one correspondence manner are circumferentially formed in the inner wall of the fireproof shell (2).

4. An environment-friendly load-bearing composite cable according to any one of claims 1 to 3, wherein the filler (9) is a net-shaped flame-retardant mineral continuous cotton rope.

5. The environment-friendly load-bearing composite cable according to claim 4, wherein the thickness of the fixing frame (5) is 1 cm-2 cm, and the fixing frame (5) is made of an elastic material.

6. The environment-friendly load-bearing composite cable as claimed in claim 5, wherein the insulation shielding layer (4) is made of a semiconductor material.