Waterproof anti-explosion box for cable middle connector

A technology of cable intermediate joint and explosion-proof box, which is applied to cable joints and other directions, can solve the problems of damage to the main body of the path, easy accidents caused by cables, soaking of cable heads, etc., and achieve the effects of curbing cable failures, convenient installation, and improving water resistance.

Inactive Publication Date: 2015-01-14
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is a large space in the above paths. When the rainy season comes or other ground pipelines are constructed, it is easy to damage the main body of the path, and the water will gather in the old-fashioned explosion-proof box, causing the

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  • Waterproof anti-explosion box for cable middle connector
  • Waterproof anti-explosion box for cable middle connector
  • Waterproof anti-explosion box for cable middle connector

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[0020] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0021] see attached Figure 1-6 , this embodiment includes an upper cavity 2 and a lower cavity 6, the structures of the upper cavity 2 and the lower cavity 2 are basically the same, the difference is that the upper cavity 2 is provided with a quick sand filling port 4, and the upper and lower cavity The flanges 5 are provided with flanges 5. The flanges 5 are provided with fixing bolts to connect and fix the upper and lower chambers. In order to enhance the waterproof function, grooves are set on the flanges 5, and grooves are embedded in the grooves. For the second sealing ring 8, the upper cavity 2 and the lower cavity 6 are closed to form an intermediate joint compartment of the cable, and the intermediate joint cavity is a cylindrical cavity. The upper part of the upper cavity 2 is provided with three quick sand flushing ports 4 f...

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Abstract

The invention discloses a waterproof anti-explosion box for a cable middle connector. The waterproof anti-explosion box comprises an upper cavity and a lower cavity connected through bolts, the upper cavity and the lower cavity are covered to form a middle connector bin, fast sand filling ports are formed in the upper portion of the upper cavity, end heads are arranged at the two ends of the upper cavity and at the two ends of the lower cavity, a plurality of waterproof grooves are formed in the inner walls of the end heads, and seal rings are arranged on the waterproof grooves. Cover bodies are arranged on the fast sand filling ports, and sealing flat gaskets are arranged between the cover bodies and the fast sand filing ports. The waterproof grooves and the seal rings are arranged on the upper cavity and the lower cavity, the waterproof effect is good, the fast sand filling ports are formed in the upper portion of the upper cavity, and the upper cavity can be conveniently filled with waterproof anti-explosion sand. The waterproof anti-explosion box for the cable middle connector is simple in structure, and can effectively prevent water from entering the anti-explosion box in the state of 1M water depth and provide the good operation environment for the middle connector. By means of the waterproof anti-explosion box for the cable middle connector, the waterproof performance of the cable middle connector is improved, cable faults caused after the middle connector is soaked in water are avoided, and the stable operation of a power grid is maintained.

Description

technical field [0001] The invention relates to a waterproof and explosion-proof box for cable intermediate joints. Background technique [0002] At present, the power distribution cables in the main urban areas of some big cities have reached 4000KM, and the operating environment mainly includes four parts: tunnels, trenches, pipes, and pipe jacking. There is a large space in the above paths. When the rainy season comes or other ground pipelines are constructed, it is easy to damage the main body of the path, and the water will gather in the old-fashioned explosion-proof box, causing the cable head to be soaked in water. In recent years, our company has mostly used cross-linked polyethylene cables. The biggest defect of this kind of cable is that once the water enters the cable from the middle head, it will easily cause accidents. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a waterproof and explosion-proof ...

Claims

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Application Information

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IPC IPC(8): H02G15/10
CPCH02G15/10
Inventor 孟磊白力裴兴毅高楠邢昆胡建斌
Owner STATE GRID CORP OF CHINA
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