Cable built-in optical fiber intermediate joint and connecting method thereof

Abstract

The invention discloses a cable built-in optical fiber intermediate joint and a connecting method thereof. The cable built-in optical fiber intermediate joint and the connecting method thereof are used for connecting two cables, and optical fibers are arranged in cable cores. The cable built-in optical fiber intermediate joint comprises a connecting pipe and two extruding barrels; the connecting pipe is gradually thickened from two ends to the middle, and a plurality of longitudinal through open seams are designed in two ends of the connecting pipe respectively; a leading-out hole is formed in the middle of the connecting pipe; wire cores at tail ends of the two cables are inserted into two ends of the connecting pipe respectively; the two extruding barrels sleeve the outside of the two ends of the connecting pipe respectively and extrude the connecting pipe to decrease the open seams by gradually moving towards the middle of the connecting pipe so that the two ends of the connecting pipe are connected with the wire cores of tail ends of the cables in an extruding mode. The optical fibers of the two cables are led out through the leading-out hole to be connected together. According to the cable built-in optical fiber intermediate joint and the connecting method thereof, compared with methods that pressure connecting pipes made of copper or aluminum materials are subjected to forced deformation by pressure clamps of press moulds to be connected with the wire cores of the tail ends of the cables, the connecting method has the advantages that damages to the wire cores of the tail ends of the cables and damages to the optical fibers in the cables are absent.

Description

technical field [0001] The invention relates to a cable built-in optical fiber intermediate joint and a connection method thereof. Background technique [0002] see figure 1 , The cable intermediate joint is used to connect two cables, including two cable ends 1', a crimping tube 2', a conductive shielding tube 3' and a joint insulating sleeve 4'. The crimping tube 2' is sleeved outside the wire cores 11' of the two cable ends and the wire cores 11' of the two cable ends 1' are crimped together. The conductive shielding tube 3' is sleeved outside the crimping tube 2', and the two ends of the conductive shielding tube 3' are respectively sleeved on the main insulation 12' of the two cable ends 1'. Wherein, the conductive shielding pipe 3' can be prefabricated on the connector insulating sleeve 4'. [0003] However, the above-mentioned intermediate joint uses crimping tube 2' to crimp the two cable end cores 11'. During crimping, the crimping tube 2' made of copper or alum...

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned intermediate joint uses crimping tube 2' to crimp the two cable end cores 11'. During crimping, the crimping tube 2' made of copper or aluminum is forcibly deformed by using a molded pliers, so as to connect with the cable conductor. , this crimping method will cause the core at the end of the cable to be damaged due to crimping. If the conductor is built with other structures such as optical fibers, the internal structure of the conductor will inevitably be destroyed.

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