Joint connection device for fire-resistant power cables

Abstract

The invention discloses a joint connecting device of a fire-resistant power cable. The joint connecting device comprises a first cable body, a second cable body, a first connector, a second connector,a nut, a fixing structure, a fastening structure, an abutting structure and a sealing structure. The joint connecting device has the beneficial effects that a fixing ring is enabled to abut against afixing loop while an external threaded pipe enters an internal threaded pipe in a threaded manner, the fixing loop pushes two fixing rods on one side of the fixing ring into a first connector, the two fixing rods are enabled to push two limiting blocks in the first connector, pressure springs contract to generate an elastic force, the side walls of the limiting blocks extrude the levers, the twolevers rotate in the first connector, one side of one lever extrudes a fixing block on a sealing ring, the other lever extrudes a fixing block on a sealing disc, the sealing ring slides downwards by acertain distance, the sealing disc slides upwards by a certain distance, and thus the sealing ring and the sealing disc are enabled to get close to each other to extrude a first cable body.

Description

technical field [0001] The invention relates to a cable joint, in particular to a joint connection device for a fire-resistant power cable, and belongs to the technical field of cable joints. Background technique [0002] The cable joint is also called the cable head. After the cable is laid, in order to make it a continuous line, each section of the line must be connected as a whole. These connection points are called cable joints, and the cable joints in the middle of the cable line are called intermediate joints. , and the cable joints at both ends of the line are called terminal heads, and the cable joints are used to lock and fix the incoming and outgoing lines. [0003] However, when the traditional cable joints are used to connect various sections of flexible cables, due to the certain elasticity of the cable skin, some gaps are generated between the cable and the cable joints during the process of being squeezed and touched, resulting in a gap between the cable joint...

AI Technical Summary

Problems solved by technology

[0003] However, when the traditional cable joints are used to connect various sections of flexible cables, due to the certain elasticity of the cable skin, some gaps are generated between the cable and the cable joints during the process of being squeezed and touched, resulting in a gap between the cable joints and the cable. The sealing effect between the cables becomes worse, which is not conducive to the protection of the cable connections of each section

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