CN112859269A

CN112859269A - KFRP optical cable reinforced core capable of being introduced in butterfly shape

Info

Publication number: CN112859269A
Application number: CN202110062608.7A
Authority: CN
Inventors: 王剑锋
Original assignee: Wuxi Jiyu Communication Equipment Co ltd
Current assignee: Wuxi Jiyu Communication Equipment Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-05-28

Abstract

The invention discloses a KFRP optical cable reinforcing core capable of being led in a butterfly shape, which comprises an outer sheath and an outer cable groove, wherein a water blocking tape is arranged inside the outer sheath, an aluminum-plastic composite tape is arranged inside the water blocking tape, the aluminum-plastic composite tape wraps the outer side of a fiber filler, the outer cable groove is formed in the outer side of the fiber filler, an outer reinforcing cable is arranged inside the outer cable groove, a butterfly-shaped sub-cable sheath wraps the fiber filler, an inner reinforcing cable and an optical fiber main body are arranged inside the butterfly-shaped sub-cable sheath, and the inner reinforcing cable is distributed on two sides of the optical fiber main body. This KFRP optical cable core is strengthened that can butterfly-shaped introduce is provided with the fibre filler in the outside of butterfly-shaped sub-cable sheath, and the embedded winding in the outside of fibre filler has outer reinforcing cable rope, and the winding through outer reinforcing cable rope can enough further strengthen the holistic stability ability of optical cable, can erect the atress performance of strong optical cable again to improve the performance of optical cable.

Description

KFRP optical cable reinforced core capable of being introduced in butterfly shape

Technical Field

The invention relates to the technical field of KFRP optical cables, in particular to a strengthening core of a KFRP optical cable capable of being introduced in a butterfly shape.

Background

Nowadays, people have entered the information age, and high-speed broadband networks have played an increasingly important role in our working life. The world is focused on the development of broadband networks, and the construction of the broadband networks in the world is entering an unprecedented high-speed development stage. The all-optical network can provide larger bandwidth, has outstanding application service bearing capacity, and is trending to construct the all-optical network. Fiber To The Home (FTTH) is the final form of broadband access, is the mainstream direction of broadband network development in the world today, is the basic guarantee for realizing the integration of three networks, and is the best way to solve the last 1 kilometer broadband bottleneck.

The development of FTTH has brought optical fibers closer and closer to us. In the whole FTTH broadband network, the home optical cable is the part closest to the subscriber, so the wiring link is the most complicated, and more factors need to be considered. The safety and reliability of the line are guaranteed, the indoor attractiveness is considered, and meanwhile, the construction convenience is considered. The traditional indoor optical cable can not meet the requirements of FTTH engineering in the prior stage in the aspects of bending property, tensile property, convenience in wiring, convenience in joint and the like. The butterfly-shaped leading-in optical cable is an optical cable with a novel structure, and the birth of the optical cable makes up the defects of the traditional indoor optical cable. The butterfly-shaped lead-in optical cable has incomparable advantages compared with optical cables with other structures, is popular with domestic and foreign communication operators since the coming of the world, and is widely applied to FTTH access networks around the world. And butterfly-shaped leading-in optical cables adopting KFRP reinforced cores are adopted in FTTH access networks.

With the great development of FTTH construction in recent years, the laying environment of FTTH construction is complex, networking is required to be flexible and convenient, the cost is low, site construction is convenient, and the optical cable can be used for a long time and simultaneously requires high use performance of the optical cable, so that a KFRP optical cable reinforcing core capable of being introduced in a butterfly shape is provided, so that the problems provided in the method are solved.

Disclosure of Invention

The invention aims to provide a KFRP optical cable reinforced core capable of being introduced in a butterfly shape, which is used for solving the problems that the current market proposed by the background technology requires flexible and convenient networking, low cost and convenient field construction, and the optical cable can be used for a long time and simultaneously requires higher service performance.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a KFRP optical cable reinforced core that can butterfly-shaped introduce, includes oversheath and outer cable groove, the inside of oversheath is provided with the water blocking tape, and the inside of water blocking tape is provided with the compound area of plastic-aluminum, the compound area parcel of plastic-aluminum is in the outside of fibre filler, and the outside of fibre filler has seted up outer cable groove to the inside of outer cable groove is provided with outer reinforcing cable rope, the inside parcel of fibre filler has butterfly-shaped sub cable sheath, and the inside of butterfly-shaped sub cable sheath is provided with interior reinforcing cable rope and optic fibre main part to interior reinforcing cable rope distributes in the both sides of optic fibre main part.

Preferably, the outer sheath is made of PE material.

Preferably, the water-blocking tape is formed by compounding a layer of semi-conductive non-woven fabric and super absorbent resin.

Preferably, the fiber filler is water-blocking yarn and aramid yarn.

Preferably, the outer reinforcing cable is formed by twisting steel wires, and the outer diameter of each steel wire is 0.5 mm.

Preferably, the butterfly-shaped sub cable sheath is made of polyolefin LSZH material.

Preferably, the outer dimension of the butterfly-shaped sub cable sheath is matched with the inner dimension of the fiber filler, and an extrusion structure is adopted between the fiber filler and the butterfly-shaped sub cable sheath.

Preferably, the outer side of the butterfly-shaped sub cable sheath is symmetrically provided with 2 fiber fillers, the outer cable grooves on the outer side of the fiber fillers are in a spiral surrounding structure, and the outer cable grooves on the 2 fiber fillers are communicated.

Compared with the prior art, the invention has the beneficial effects that: the KFRP optical cable reinforcing core capable of being introduced in the butterfly shape is provided with the butterfly-shaped sub-cable sheath and the internal reinforcing cable rope, under the condition that the butterfly-shaped sub-cable structure is not changed, the requirements of overhead and pipelines can be met simultaneously, the weight is light, the construction is convenient and quick, the construction period and the construction cost are greatly reduced, the KFRP optical cable reinforcing core is applied to occasions with complex laying environments, particularly FTTH construction in rural areas, the problem of split-field and split-section introduction is solved, the connection points are reduced, a novel optical cable structure is provided for the laying mode of FTTH construction, the reinforcing member is embedded in the sheath, compared with the situation that the reinforcing member is loosely placed in an optical cable, the tensile property is better under the condition that the reinforcing member with the same size is used, and a better solution is provided for popularization of optical fibers to households in mountainous areas, rural areas;

the outer side of the butterfly-shaped sub-cable sheath is provided with the fiber filler, the outer reinforcing cable is wound on the outer side of the fiber filler in an embedded mode, the overall stability of the optical cable can be further reinforced through winding of the outer reinforcing cable, the stress performance of the optical cable can be enhanced, and therefore the using performance of the optical cable is improved.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present invention;

FIG. 2 is a schematic side sectional view of the present invention.

In the figure: 1. an outer sheath; 2. a water blocking tape; 3. an aluminum-plastic composite tape; 4. a fibrous filler; 5. externally reinforcing the cable; 6. a butterfly-shaped sub-cable sheath; 7. an inner reinforcing cable; 8. an optical fiber body; 9. an outer cable groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a KFRP optical cable reinforcing core that but butterfly-shaped was introduced, including oversheath 1, water blocking tape 2, aluminum-plastic composite belt 3, fibre filler 4, outer reinforcing cable 5, butterfly-shaped sub cable sheath 6, interior reinforcing cable 7, optic fibre main part 8 and outer cable groove 9, the inside of oversheath 1 is provided with water blocking tape 2, and the inside of water blocking tape 2 is provided with aluminum-plastic composite belt 3, aluminum-plastic composite belt 3 wraps up in the outside of fibre filler 4, and outer cable groove 9 has been seted up in the outside of fibre filler 4, and the inside of outer cable groove 9 is provided with outer reinforcing cable 5, the inside parcel of fibre filler 4 has butterfly-shaped sub cable sheath 6, and the inside of butterfly-shaped sub cable sheath 6 is provided with interior reinforcing cable 7 and optic fibre main part 8, and interior reinforcing cable 7 distributes in the both sides of optic fibre main part 8.

The outer sheath 1 is made of PE material, and the PE material has the characteristics of good surface hardness, tensile strength, environmental cracking resistance, flame retardance and the like, and is suitable for indoor and outdoor paving.

The water blocking tape 2 is formed by compounding a layer of semi-conductive non-woven fabric and super absorbent resin, and has the function of preventing water or moisture from longitudinally spreading so as to play a role of blocking water.

The fiber filler 4 is the yarn and the aramid yarn that block water, can play the effect that blocks water and tensile, and outer reinforcing hawser 5 is formed for the steel wire transposition, and the external diameter of steel wire is 0.5mm, can enough guarantee outer reinforcing hawser 5's pliability, can guarantee outer reinforcing hawser 5's intensity again.

The butterfly-shaped sub-cable sheath 6 is made of polyolefin LSZH materials, the overall dimension of the butterfly-shaped sub-cable sheath 6 is identical to the inside dimension of the fiber filler 4, an extrusion structure is adopted between the fiber filler 4 and the butterfly-shaped

sub-cable sheath

6, 2 fiber fillers 4 are symmetrically arranged on the outer side of the butterfly-shaped sub-cable sheath 6, the outer cable grooves 9 on the outer side of the fiber fillers 4 are of spiral surrounding structures, the outer cable grooves 9 on the 2 fiber fillers 4 are communicated, and the overall stability of the optical cable is guaranteed.

The KFRP reinforced core has good flexibility and ultra-small minimum bending radius, and the butterfly-shaped leading-in optical cable made of the KFRP reinforced core does not need to consider the situation that the KFRP reinforced core can be broken in the range of the allowable bending radius of the optical fiber.

The KFRP reinforced core has small density, higher specific strength and specific modulus, lighter weight of the butterfly-shaped lead-in optical cable made of the KFRP reinforced core, completely meeting the industrial standard of the butterfly-shaped lead-in optical cable by various mechanical performance indexes, and endowing the reinforced core with different mechanical performances by designability of the KFRP material so as to meet the special requirements of different customers.

After the KFRP reinforced core is broken under the unexpected condition, the tensile strength of the KFRP reinforced core is still kept above 1400M/pa, the modulus is maintained unchanged, the butterfly-shaped leading-in optical cable made of the KFRP reinforced core is used, if the KFRP reinforced core is broken due to improper construction, the reinforced core can not puncture the sheath to damage the optical fiber.

The KFRP reinforced core has the bonding resin on the surface of the body, and the outer sheath of the optical cable of the KFRP reinforced core is tightly adhered after cabling, so that the tensile capacity of the KFRP reinforced core can be fully exerted. The peeling force between the KFRP and the optical cable sheath is more than 25N/cm, and the excellent waterproof performance is not possessed by indoor optical cables with other structures.

The KFRP reinforced core not only has good flexibility, but also has certain rigidity, and the KFRP reinforced core is arranged on two sides of the optical fiber in a split mode, so that the optical fiber can be well protected from being bent and broken when the optical cable is bent. When the optical cable is laid in a pipe, not only a traction mode but also a feeding mode can be adopted.

The KFRP reinforced core is made of non-metal material, and the KFRP reinforced core can be made into a butterfly-shaped leading-in optical cable with an all-dielectric structure. Because of the all-nonmetal structure, the optical cable has excellent lightning protection performance, can effectively avoid the possibility of lightning triggering such as a room in use, and is particularly suitable for the occasions directly led into the room from the outdoors. The KFRP reinforced core does not contain harmful substances, and the optical cable made of the KFRP reinforced core can meet the requirements specified by the RoHS instruction.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. A KFRP optical cable reinforced core that can butterfly-shaped introduce, includes oversheath (1) and outer cable groove (9), its characterized in that: the novel optical fiber cable is characterized in that a water blocking tape (2) is arranged inside the outer sheath (1), an aluminum-plastic composite tape (3) is arranged inside the water blocking tape (2), the aluminum-plastic composite tape (3) wraps the outer side of the fiber filler (4), an outer cable groove (9) is formed in the outer side of the fiber filler (4), an outer reinforcing cable (5) is arranged inside the outer cable groove (9), a butterfly-shaped sub cable sheath (6) wraps the inner portion of the fiber filler (4), an inner reinforcing cable (7) and an optical fiber main body (8) are arranged inside the butterfly-shaped sub cable sheath (6), and the inner reinforcing cable (7) is distributed on two sides of the optical fiber main body (8).

2. The KFRP optical cable reinforced core capable of butterfly-shaped introduction according to claim 1, wherein: the outer sheath (1) is made of PE materials.

3. The KFRP optical cable reinforced core capable of butterfly-shaped introduction according to claim 1, wherein: the water-blocking tape (2) is formed by compounding a layer of semi-conductive non-woven fabric and super absorbent resin.

4. The KFRP optical cable reinforced core capable of butterfly-shaped introduction according to claim 1, wherein: the fiber filler (4) is water-blocking yarn and aramid yarn.

5. The KFRP optical cable reinforced core capable of butterfly-shaped introduction according to claim 1, wherein: the outer reinforcing mooring rope (5) is formed by twisting steel wires, and the outer diameter of each steel wire is 0.5 mm.

6. The KFRP optical cable reinforced core capable of butterfly-shaped introduction according to claim 1, wherein: the butterfly-shaped sub-cable sheath (6) is made of polyolefin LSZH materials.

7. The KFRP optical cable reinforced core capable of butterfly-shaped introduction according to claim 1, wherein: the outer dimension of the butterfly-shaped sub-cable sheath (6) is matched with the inner dimension of the fiber filler (4), and an extrusion structure is adopted between the fiber filler (4) and the butterfly-shaped sub-cable sheath (6).

8. The KFRP optical cable reinforced core capable of butterfly-shaped introduction according to claim 1, wherein: the outer side of the butterfly-shaped sub-cable sheath (6) is symmetrically provided with 2 fiber fillers (4), the outer cable grooves (9) on the outer side of the fiber fillers (4) are of spiral surrounding structures, and the outer cable grooves (9) on the 2 fiber fillers (4) are communicated.