Flexible connection composite conical surface structure for double containers of through type electric water heater

The invention belongs to the technical field of electric water heaters, and particularly relates to a flexible connection composite conical surface structure for double containers of a through type electric water heater. The problem that two sets of connecting pipelines cannot be accurately installed due to over-positioning is avoided. The technical problem is solved by providing the flexible connection composite conical surface structure for the double containers of the through-type electric water heater while effective sealing is ensured and the distance between the inner containers is reduced as much as possible. According to the flexible connection composite conical surface structure for the double containers of the through type electric water heater, an upper connection pipeline and a lower connection pipeline are connected together in an inserted mode; the straight inner pipeline of the lower connecting pipeline is flexibly connected with the conical sealing sleeve through an elastic device, and the con