A spring bed with quick assembly and disassembly includes two cross bars, a plurality of vertical bars, a plurality of springs, and a plurality of fixing bases. The two cross bars and the vertical bars are parallel arranged with spacing. The two ends of the vertical bars are detachably assembled to the two cross bars. Each vertical bar is disposed with a plurality of fixing bases. The springs are detachably assembled to the fixing bases. Two ends of the vertical bar are detachably connected to the two cross bars.

A spring bed with quick assembly and disassembly includes two cross bars, a plurality of vertical bars, a plurality of springs, and a plurality of fixing bases. The two cross bars and the vertical bars are parallel arranged with spacing. The two ends of the vertical bars are detachably assembled to the two cross bars. Each vertical bar is disposed with a plurality of fixing bases. The springs are detachably assembled to the fixing bases. Two ends of the vertical bar are detachably connected to the two cross bars.

A connecting structure for a plurality of elastic units of a sofa bed is provided. The sofa bed includes a bed frame, and the bed frame is configured be alternatively changed between a flat state and a backrest state. The bed frame is disposed with a bed board on which the plurality of elastic units are configured to be disposed. A surface of the bed board is disposed with a plurality of fixing members spaced apart from each other and configured to be connected to the plurality of elastic units, and a bottom of at least one of the plurality of elastic units includes a fixing fitting member configured to be matched with a corresponding one of the plurality of fixing members. The fixing fitting member and the corresponding one of the plurality of fixing members form a detachable connection relationship.