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Anti-explosion protection box for center coupling of cable

A technology of cable intermediate joint and protection box, applied in the direction of cable joint, etc., to achieve the effect of comprehensive waterproof performance, avoid expansion, avoid cable body and secondary damage

Inactive Publication Date: 2014-03-12
ZHUHAI PULI YONGXIN ELECTRIC POWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this design is difficult to avoid secondary damage to adjacent affected cables caused by high-pressure airflow, flames, cable fragments and other substances ejected from the slow-release hole

Method used

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  • Anti-explosion protection box for center coupling of cable
  • Anti-explosion protection box for center coupling of cable
  • Anti-explosion protection box for center coupling of cable

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Embodiment Construction

[0020] Refer to attached figure 1 to attach Figure 4 , the explosion-proof protection box for the cable intermediate joint of the present invention comprises two semi-cylindrical housings 1 that can be docked, and the two ends of the housing 1 are provided with constricted parts 11, and the middle section and both ends of the housing 1 are corresponding A fastening groove 12 is provided, and by docking and fixing the fastening ring 2 located in the fastening groove 12, the protection device can complete stable and basic fixing. In order to ensure its sealing performance, the butt joint surface of the shell 1 is also provided with a Sealing strip 13 is arranged.

[0021] In addition, the above-mentioned constriction portion 11 is provided with a through hole for passing through the cable. The inner wall of the through hole is in the shape of a groove, and a sealing ring 3 is arranged in it. For further sealing effect of the device, the sealing ring 3 is designed as Semicircu...

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Abstract

The invention discloses an anti-explosion protection box for a center coupling of a cable. The protection box comprises two shells, wherein the shells can be abutted and are of a semicylindrical shape respectively; both ends of each shell are provided with necked parts; each necked part is provided with a through hole for enabling the cable to pass through; the middle section and both the ends of each shell are correspondingly provided with a plurality of fastening grooves; the shells are abutted and fixed by fastening rings positioned in the fastening grooves; flame-retardant thermal insulating layers are arranged between the shells and the cable; the inner wall of each through hole is of a cutting groove shape; sealing rings are arranged in the through holes. The anti-explosion protection box for the center coupling of the cable is designed for the common potential safety hazard in the installing and using processes of the center coupling of the cable and has excellent properties such as explosion resistance, waterproofness, fire resistance, corrosion resistance and long service life.

Description

technical field [0001] The invention relates to a protection device for an intermediate joint of a cable, in particular to an explosion-proof protection box for an intermediate joint of a cable. Background technique [0002] During long-term use, the middle joint of the cable is prone to problems such as ignition, short circuit or even explosion due to aging, causing economic losses and sometimes even threatening personal safety. At present, there are many kinds of cable explosion-proof protection boxes on the market, including iron shells and glass fiber reinforced plastics. Although they have a certain hardness, they are relatively bulky and have insufficient insulation, flame retardancy, impact resistance, and waterproof effects. It will cause the settlement of the cable, and the appearance is not beautiful. [0003] Of course, some products adopt the design of explosion slow-release holes, which is more practical. Its working principle is that when an accident occurs ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G15/10
Inventor 金斧禤灿辉熊文光邓大全王春新
Owner ZHUHAI PULI YONGXIN ELECTRIC POWER EQUIP CO LTD
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