Watertight joint used for butt joint of underwater cables

Abstract

The invention relates to a watertight joint used for butt joint of underwater cables. The watertight joint comprises a joint body, a sealing cavity, sealants, inner blocking pieces, outer blocking pieces, tapered rubber blankets, locking threads and hold-down nuts. The inside of the joint body is hollowed out to form the sealing cavity which is a through hole penetrating through the axis of the inside of the joint body, taper holes magnifying outwards are formed in inner cavities in the two ends of the joint body and located in the two ends of the sealing cavity, the inner diameters of the taper holes are larger than the inner diameter of the sealing cavity, the front ends of cable joints are sleeved with the tapered rubber blankets, the front ends of the tapered rubber blankets are plugged in the taper holes, the tail ends of the tapered rubber blankets are exposed outside the joint body, the inner blocking pieces are arranged at the front ends of the tapered rubber blankets, the outer blocking pieces are arranged at the outer ends of the tapered rubber blankets, the cable joints of the cables in butt joint are in butt joint and then are placed in the sealing cavity, the sealants are poured into the sealing cavity, the locking threads are arranged on the surfaces at the two ends of the outer surface of the joint body, and the inner diameter of the hold-down nuts is larger than that of the tapered rubber blankets.

Description

technical field [0001] The invention relates to a watertight joint for butt joint of underwater cables, which is used for the sealing connection of damaged parts of underwater cables. Background technique [0002] In underwater engineering, when the wet-end equipment connected to the underwater cable fails and is recovered by the ship, in addition to the failure of the wet-end equipment itself, it is often found that the underwater cable that was previously considered to be undamaged is also partially damaged. Many fresh scars, most of these new scars occurred in the salvage operation of the underwater wet end equipment by the salvage ship, are often caused by the collision and extrusion of hard media such as the salvage ship, marine steel cables and metal components on the ship. Underwater cables with scars often show varying degrees of performance degradation in terms of load bearing, water pressure resistance, and watertightness, and there are hidden dangers of failure, t...

AI Technical Summary

Problems solved by technology

Underwater cables with scars often show varying degrees of performance degradation in terms of load bearing, water pressure resistance, and watertightness, and there are hidden dangers of failure, threatening the safety of industrial projects.

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