Self-supporting easy-branched butterfly-shape optical cable

Abstract

The invention relates to a self-supporting easy-branched butterfly-shape optical cable. The optical cable comprises an outer sheath (2), a suspension wire sheath (1), a suspension wire (4) and self-supporting butterfly-shape optical cable units (9). The outer sheath (2) and the suspension wire sheath (1) are a circular structure. The outer sheath (2) and the suspension wire sheath (1) are connected through a connection portion (3). The suspension wire (4) is arranged in the suspension wire sheath (1). The plurality of self-supporting butterfly-shape optical cable units (9) are arranged in the outer sheath (2). Each self-supporting butterfly-shape optical cable unit (9) comprises a butterfly sheath (5), a self-supporting suspension wire (6) and an optical fiber (7). The self-supporting suspension wire (6) wraps a head of the butterfly sheath (5). The optical fiber (7) is arranged on a middle portion of the butterfly sheath (5). The optical cable of the invention has the advantages that the outer sheath and the butterfly sheath are provided with the suspension wire so that self-supporting intensity is high; overhead laying cost is low, operation is convenient and labor intensity is low; branch usage is convenient; the cable after laying is under uniform stress so that optical cable machinery performance can be improved.

Description

technical field [0001] The invention relates to an optical cable, in particular to a self-supporting easy-branch butterfly optical cable. Background technique [0002] With the development of optical communication towards FTTB (Fiber to the Building), FTTO (Fiber to the Office), FTTH (Fiber to the Home), butterfly cables are widely used in the access network. In order to simplify construction and maintenance, a self-supporting butterfly cable that can be used both indoors and outdoors is widely used; in the outdoor section, it can be used as a self-supporting cable overhead; On the holder, the remaining optical cables are removed from the suspension wire components and become butterfly optical cables to be introduced into the room, and are used with quick-connect connectors or optical fiber cold connections. The traditional butterfly optical cable is inconvenient to lay, the construction difficulty is high, and the self-supporting strength is low. [0003] Chinese patent a...

AI Technical Summary

Problems solved by technology

The construction of such a structure is relatively cumbersome. If an all-fiber network transformation is to be carried out in the future, the project must be huge, and it will take time and work to rewire the site.

[0004] Chinese patent application number: 201220363366.1 discloses a photoelectric hybrid corrugated cable, including an optical communication unit, an electrical communication unit and an outer sheath, the optical communication unit includes at least a pair of optical fiber cores, and the electrical communication unit includes at least one electrical communication link The corrugated cable with this structure has poor bearing and tensile capacity, and most of the cable is exposed to the outside air. After long-term sun and rain, the protective effect of the outer sheath of the cable Small

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