Foldable container and cleaning tool assembly

A foldable container, comprising

• a foldable side wall;
• wherein
• the foldable side wall is disposed annularly the foldable side wall comprises a plurality of connecting parts, and the plurality of connecting parts comprise a first connecting part and a second connecting part, wherein
• the first connecting part and the second connecting part are adjacent to each other and connected through a flexible part;
• when the foldable container is unfolded, the first connecting part and the second connecting part rotate around a fold part on the flexible part;
• a first abutting part and a second abutting part are respectively disposed on two sides of the fold part;
• the first abutting part is arranged on the flexible part, and the second abutting part is arranged on the first connecting part or the second connecting part;
• or the first abutting part and the second abutting part are arranged on the flexible part;
• or the first abutting part and the second abutting part are arranged on the first connecting part or the second connecting part;
• and
• when the foldable container is in an unfolded state, the first abutting part abuts directly against the second abutting part and wherein
• the flexible part has a concave surface having a continuous concavity throughout the concave surface;
• the fold part is located on the concave surface;
• the first abutting part and the second abutting part are arranged on the concave surface of the flexible part and are located at two ends of the concave surface, respectively.