Disclosed in the present invention is a foldable sofa includes a first base block, where an upper side of the first base block serves as a first use face, a side face of one side of the first base block serves as a front face, a first backrest fence is arranged on the first use face, a first fence groove which faces the front face and matches a human body is provided in the first backrest fence, and the first fence groove and the first use face cooperate to enclose a sofa use portion. A second base block is arranged on a lower side of the first base block, a lower portion of the side, close to the front face, of the first base block is hinged to the second base block, and a second backrest fence is arranged on the first backrest fence.
1. A foldable sofa, comprising a first base block, wherein an upper side of the first base block serves as a first use face, a side face of one side of the first base block serves as a front face, a first backrest fence is arranged on the first use face, a first fence groove which faces the front face, and is configured to fit a body of a user, is provided in the first backrest fence, and the first fence groove and the first use face cooperate to enclose a sofa use portion; and a second base block is arranged on a lower side of the first base block, a lower portion of the lower side, closest to the front face, of the first base block is hinged to the second base block, a second use face corresponding to the first use face is arranged on the second base block, when the second base block is turned to be flush with the first base block, the second use face is flush with the first use face, a second backrest fence is arranged on the first backrest fence, an upper portion of a side, closest to the front face, of the first backrest fence is hinged to the second backrest fence, and the second backrest fence is provided with a second fence groove corresponding to the first fence groove.
2. The foldable sofa according to claim 1 , wherein a plurality of first locking fasteners for keeping the second base block locked on the lower side of the first base block are arranged between the first base block and the second base block.
3. The foldable sofa according to claim 1 , wherein several second locking fasteners for keeping the second backrest fence locked on an upper side of the first backrest fence are arranged between the first backrest fence and the second backrest fence.
4. The foldable sofa according to claim 1 , wherein the first backrest fence and the second backrest fence are equal in size, and the first base block and the second base block are equal in size.
5. The foldable sofa according to claim 1 , wherein outer walls of the first backrest fence, the second backrest fence, the first base block and the second base block each are wrapped with a fabric layer, the first backrest fence is hinged to the fabric layer wrapped outside the second backrest fence by means of the fabric layer wrapped outside the first backrest fence, and the first base block is hinged to the fabric layer wrapped outside the second base block by means of the fabric layer wrapped outside the first base block.
6. The foldable sofa according to claim 5 , wherein two ends of the front face of the first base block are connected to the second base block, and a separation seam is provided between a connection position of the two ends.