Butterfly cable

Abstract

The invention discloses a butterfly optical cable, comprising: a pair of single-core cable bodies, in which an optical fiber and a sheath layer covering the outer surface of the optical fiber are arranged in the single-core cable body; It is connected to form the main body of the optical cable, and the joints on the upper and lower sides have inwardly concave tearing grooves; the butterfly optical cable is also provided with a crimping section and a covering section along the axial direction, and the outer tearing grooves on the upper and lower sides of the covering section are Covered with a waterproof film; at least one end of the curled section is provided with a protruding first fixed block, and the fixed block is connected with a curly elastic piece. When the curled elastic piece is opened, the curled elastic piece is connected to the single-core cable body through the connecting film, and is completely covered and The tear groove is closed; when the curly shrapnel shrinks, the curly shrapnel naturally shrinks into a circular shock-absorbing body. In the present invention, a crimping section and a coating section are arranged, and the tearing groove is covered with a waterproof film in the coating section, and the tearing groove is covered with a curled shrapnel in the crimping section, so that the ability to protect the optical fiber is strong, it is easy to tear, and at the same time, it improves the performance of the butterfly cable. shock absorbing performance.

Description

technical field [0001] The invention relates to the field of optical cable production, in particular to a butterfly optical cable. Background technique [0002] Butterfly optical cable is a new type of user access optical cable. According to different application environments and laying conditions, the optical cable structure and various technical parameters are reasonably designed, and it combines the characteristics of indoor flexible optical cable and self-supporting optical cable. Butterfly optical cable is the best candidate product for FTTX network, and it plays a unique role in the establishment of intelligent buildings, digital communities, campus networks, local area networks and other networks. [0003] Existing butterfly optical cable: 1) There is only a thin layer of plastic between the bottom of the tear groove of the butterfly cable sheath and the optical fiber, which is prone to water seepage, causing hydrogen damage to the optical fiber, increasing the attenu...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a butterfly optical cable, which solves the defects of the existing butterfly optical cable such as short service life, easy water seepage, and weak ability to protect optical fibers

The present invention solves the problem by arranging a curling section and a covering section, covering the tearing groove with a waterproof film in the covering section, and covering the tearing groove with a curled shrapnel in the curling section, so that the tearing groove of the covering section is covered. The existing butterfly optical cable is prone to water seepage, and the ability to protect the optical fiber is weak, causing hydrogen damage to the optical fiber, increasing the attenuation coefficient of the optical fiber, and reducing the service life of the optical fiber. Shock-absorbing properties of optical cables

Images