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Self-supporting butterfly optical cable capable of overcoming influence of stripping grooves on protection strength of optical fiber

A technology for optical fiber protection and butterfly cable, which is applied in the direction of light guides, optics, optical components, etc., can solve the problems of fiber breakage, reduce the buffering capacity of the protective sleeve, and reduce the protective ability of the protective sleeve to the optical fiber, etc., and achieve strong external force impact, The effect of convenient cable stripping and excellent fracture resistance

Pending Publication Date: 2020-02-14
CEEC SHANXI ELECTRIC POWER EXPLORATION & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, looking at the various self-supporting butterfly cables in the prior art, there is a common defect, that is, the opening position of the groove of the protective sleeve is aligned with the position of the optical fiber, and the function of the protective sleeve is to In order to protect the optical fiber, when the external force directly acts on the optical fiber, the protective sleeve plays the role of buffering the external force, and the groove opened on the protective sleeve at the corresponding position of the optical fiber is exactly at the position where the optical fiber needs to be protected. The cushioning ability of the protective sleeve against external force will lead to a sharp decline in the protective ability of the protective sleeve to the optical fiber. The external force will directly act on the optical fiber through the stripping groove of the protective sleeve, which will easily lead to the breakage of the optical fiber.

Method used

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  • Self-supporting butterfly optical cable capable of overcoming influence of stripping grooves on protection strength of optical fiber
  • Self-supporting butterfly optical cable capable of overcoming influence of stripping grooves on protection strength of optical fiber

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Embodiment Construction

[0011] The present invention is described in detail below in conjunction with accompanying drawing:

[0012] A self-supporting butterfly optical cable that can overcome the influence of stripping grooves on the protection strength of optical fibers, including an upper protective sheath 1, a lower protective sheath 4, a sling 3, a suspension wire 2, a strengthening core 5, a loose tube 6 and an optical fiber 7. An optical fiber 7 is arranged in the loose tube 6, and a suspension wire 2 is arranged in the upper protective sheath 1. The upper protective sheath 1 is connected with the top surface of the lower protective sheath 4 through a sling 3, and the cross section of the lower protective sheath 4 is rectangular. The central axis of the lower protective cover 4 coincides with the central axis of the loose tube 6, and two pairs of stripping grooves 8 with a right-angled triangle cross section are symmetrically arranged on both sides of the lower protective cover 4; The extensio...

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Abstract

The invention discloses a self-supporting butterfly optical cable capable of overcoming influence of stripping grooves on protection strength of an optical fiber, and overcomes the influence of the stripping grooves of protective sleeves on the protection strength of the optical fiber. The self-supporting butterfly optical cable comprises an upper protective sleeve (1), a lower protective sleeve (4), a loose tube (6) and an optical fiber (7), wherein two pairs of stripping grooves (8) in the shape of a right-angled triangle are arranged symmetrically on both sides of the lower protective sleeve (4); the extension lines of the right-angled edges (801) of the two stripping grooves (8) on the lower end of the lower protective sleeve are set under the cross-sectional area of the loose tube (6); the extension lines of the right-angled edges (803) of the two stripping grooves (8) on the upper end of the lower protective sleeve (4) are set above the cross-sectional area of the loose tube (6),and the notches of the two stripping grooves on the both sides on the lower protective sleeve (4) are provided outside the outer contour lines at both ends of the cross-sectional area of the loose tube. The self-supporting butterfly optical cable provided by the invention has excellent resistance to fracture, reliable work and long service life.

Description

technical field [0001] The invention relates to an optical communication device, in particular to a self-supporting butterfly optical cable. Background technique [0002] At present, the butterfly optical cable has become the most basic network transmission tool. It is named after the shape of a butterfly on the outside of the cross section. The butterfly optical cable is a widely used user access optical cable and is widely used in the fiber-to-the-home FTTH network. The optical cable in the lead-in section is also suitable for users of FTTO and FTTB networks accessed by other optical fibers, and plays its unique role in networks such as intelligent buildings, digital communities, campus networks, and local area networks; the butterfly optical cable has a small outer diameter of optical cable , light weight, low cost, good flexibility and bending performance. In order to improve the mechanical strength of the butterfly cable, there are many technical solutions for the self...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/443G02B6/4432
Inventor 吕旭东申红强杨建勇杨哲包滔滔王文浩刘婉妮姜云霄郭强吴东方张虹张彦龙武天佳
Owner CEEC SHANXI ELECTRIC POWER EXPLORATION & DESIGN INST
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