Shell structure of clothing treating device, and clothing treating device

A shell structure for a clothing treating device having a first clothing treating drum and a second clothing treating drum which are arranged in longitudinal order, the shell structure comprising:

• a rear U-shaped plate, the rear U-shaped plate is bent at two vertical lines to form a left side wall, a right side wall and a rear side wall of a shell, with a cross section being U-shaped, of the clothing treating device, wherein
• the left side wall and the right side wall of the shell are respectively provided with at least one handle part, and
• the rear U-shaped plate is provided with an air vent communicated with an inside of the shell;
• an upper overhauling installation opening and a lower overhauling installation opening arranged on the rear side wall, and
• an upper rear back cover plate and a lower rear back cover plate which respectively cover the upper overhauling installation opening and the lower overhauling installation opening,
• wherein the upper overhauling installation opening corresponds to the first clothing treating drum and part of the second clothing treating drum, and the lower overhauling installation opening corresponds to at least another part of the second clothing treating drum.