Shrinkage explosion -proof type cable intermediate head

The utility model discloses a shrinkage explosion -proof type cable intermediate head, including the shrinkage joint, and set up in shrinkage joint outlying explosion -proof box, the shrinkage connects including three -core cables, and sets gradually sheath in the steel armour in the three -core cables outside, big constant force spring and cable, and set up in three -core cables's little constant force spring of three -core outlying and copper shield, and in proper order with semi -conductive layer, sinle silk insulating layer and the conductor connecting pipe of three -core cables's three -core installation, and set up in semi -conductive layer, sinle silk insulating layer and conductor connecting pipe outlying shrinkage intermediate head, explosion -proof box upper portion both ends are provided with lets out the ability hole, let out and to have filled the sealed glue of high tension cable in the hole. The utility model discloses a shrinkage explosion -proof type cable intermediate head upper portion both